MFG Guide

Design Of A Sheet Metal Hammer For Auto Sheet Metal Painting


As a shaping tool, sheet metal hammers are very common in the automotive sheet metal industry.When the car is damaged in a collision, it is necessary to use a sheet metal hammer to knock and reset the deformed part.The traditional sheet metal hammers are mostly metal hammers. When the metal hammer hits the deformed part, the metal hammer is in hard contact with the sheet metal, and the vibration is large, which can easily damage the paint surface of the deformed part of the car. After the plastic treatment, it needs to be sprayed, which not only increases the repair process and prolongs the repair time, but also increases the repair cost and causes an economic burden.

1 Technical problem solved

Aiming at the deficiencies of the prior art, this paper provides a sheet metal hammer for automobile sheet metal painting, which solves the problem of hard contact between the sheet metal hammer and the sheet metal, which is easy to damage the paint surface of the deformed part of the automobile.

2 Technical solutions for sheet metal hammer design

In order to achieve the above purpose, the new sheet metal hammer is realized through the following technical solutions. There is a hanging ring under the sheet metal hammer handle of the new type of sheet metal hammer, the top of which is inserted into the bottom of the buffer block frame, the top of the buffer block frame is welded with a connecting block, the top of the connecting block is clamped to the fixing part, and the inner part of the fixing part is clamped to the sheet metal hammer.

The outer surface of the sheet metal hammer handle is provided with an annular grip groove near the bottom, the bottom of the hammer handle is fixedly installed with a bottom block, the bottom of the bottom block is fixed with a hanging ring, and the top of the sheet metal hammer handle penetrates the bottom of the buffer block frame and It extends to the inside of the buffer block frame, and the buffer cavity opened inside is fixedly connected with the bottom of the vibration damping inner core. The top of the vibration damping inner core is fixedly installed with a slider, the top of the slider is inserted into the top of the inner wall of the buffer cavity, and there are fixed projections on both sides of the vibration reduction inner core, and the outer surface of the fixing projections is sleeved with the same. Suitable buffer springs. One end of the buffer spring away from the shock-absorbing inner core is in contact with the inner wall of the shock-absorbing cavity, and the outer surface of the shock-absorbing inner core is sleeved with a groove baffle adhered to the bottom of the shock-absorbing inner core.

The sheet metal hammer fixing part includes a fixing ring. The inside of the fixing ring is provided with a hole and groove that is adapted to the sheet metal hammer head. The bottom of the fixing ring is welded with a fixed insertion rod, and the bottom of the fixed insertion rod is welded with an embedded block, the embedded block is inserted into the fixed slot opened on the top of the connecting block, and a closed bolt threadedly connected to the fixed slot is inserted into the inside of the fixed slot.

3 effects

The sheet metal hammer for automobile sheet metal painting is provided with a vibration damping inner core made of rubber material. When the sheet metal hammer is used to strike the sheet metal, the vibration damping core made of rubber material has a certain vibration damping function, which can reduce the number of sheet metal parts. Vibration of gold. The shock-absorbing inner core side wall of the sheet metal hammer is provided with a buffer spring, which is a strong spring and also plays the role of buffering and damping. There is a certain fine-tuning distance between the sheet metal handle and the buffer block frame, which solves the problem of damage to the paint surface of the car caused by the vibration when the sheet metal is hit with a sheet metal hammer.

The sheet metal hammer places the sheet metal hammer head inside the fixture, and rotates the adjusting bolt to fix the sheet metal hammer head. Insert the insert block into the connection slot and tighten the closing bolt to complete the installation of the sheet metal hammer. The hammer head of the sheet metal hammer can be replaced, which is convenient to replace and use different sheet metal hammer heads when repairing different positions, and also avoids the need to prepare multiple sheet metal hammers during the maintenance process, reduces production costs, and operates at the same time. Simple and convenient, does not affect the maintenance efficiency.

4 Structure introduction of sheet metal hammer

Fig. 1 is a schematic structural diagram of the sheet metal hammer, Fig. 2 is a structural schematic diagram of a fixing member, and Fig. 3 is a structural schematic diagram of the top of the connecting block.

5 Specific ways of sheet metal hammer design

The outer surface of the sheet metal hammer handle is provided with an annular handle groove near the bottom, the handle groove is recessed to the inside of the sheet metal handle, and its outer surface is provided with a rubber sleeve that matches it. This sheet metal hammer is more convenient to grip. A bottom block is fixedly installed at the bottom of the sheet metal hammer handle, and a hanging ring is fixedly installed at the bottom of the bottom block. The setting of the hanging ring is convenient for hanging and placing the sheet metal hammer, which is more convenient for its management.

The top of the sheet metal hammer handle penetrates the bottom of the buffer block frame, extends into the buffer cavity opened inside the buffer block frame, and is fixedly connected with the bottom of the vibration damping inner core, which is made of rubber. The bottom of the buffer block frame is provided with a through groove matching the sheet metal handle, and the direction of the through groove is horizontal with the direction of the sheet metal hammer head. The top of the shock-absorbing inner core is fixedly installed with a slider, the top of the slider is inserted into the top of the inner wall of the buffer cavity, and the top of the inner wall of the buffer cavity is provided with a chute adapted to the slider, and the top of the slider extends to the chute The inside of the runner is in contact with its inner wall, and the slider can slide inside the chute.

Both sides of the damping inner core are fixedly installed with fixed bumps, the outer surfaces of the fixed bumps are provided with buffer springs adapted to them, and one end of the buffer spring away from the vibration damping inner core is in contact with the inner wall of the buffer cavity. The outer surface of the vibration damping inner core is provided with a groove blocking piece bonded to the bottom of the buffer cavity. The groove blocking piece closes the through groove and is made of rubber material. .

When the sheet metal hammer is used to strike the sheet metal, the vibration damping inner core made of rubber material has a certain vibration damping function, which can reduce the vibration of the sheet metal. The shock-absorbing inner core side wall of the sheet metal hammer is provided with a buffer spring. The buffer spring is a strong spring, which also plays the role of buffering and damping, so that there is a certain fine-tuning distance between the handle of the sheet metal hammer and the buffer block frame, which solves the problem of When the sheet metal is struck with a sheet metal hammer, the sheet metal vibrates, causing damage to the car paint surface.

The fixing piece is a fixing ring, the inside of the fixing ring is provided with a hole groove matching the sheet metal hammer, the side wall of the fixing ring is provided with a notch, and the side wall of the notch of the fixing ring is inserted with an adjusting bolt which is threadedly connected with the fixing ring. The bottom of the fixing ring is welded with a fixed insertion rod, the bottom of the fixed insertion rod is welded with an embedded block, and the embedded block is inserted into the fixed card slot opened on the top of the connection block. The fixed card slot is matched with the embedded block, and the top of the connection block is provided with a top groove that is matched with the fixed insertion rod and communicates with the inside of the fixed card slot.

Its working principle is: when using, place the sheet metal hammer head inside the fixing part, rotate the adjusting bolt to tighten the fixing part to fix the sheet metal hammer head, insert the embedded block into the inside of the connection slot, and tighten the closing bolt, that is, The installation of the sheet metal hammer can be completed.

6 Conclusion

The biggest advantage of this sheet metal hammer is that the hammer head can be replaced, which is convenient to replace and use different sheet metal hammer heads in different maintenance processes, avoid the need to prepare multiple sheet metal hammers during the maintenance process, reduce production costs, and at the same time, the operation is simple and convenient , improve production efficiency.

Sheet fabrication services for mild steel, high strength low alloy (HSLA) steel, cold/hot rolled steel, galvanized steel, stainless steel, aluminum, copper and brass. Capable of fabricating parts up to 12 ft. length and +/-0.001 in. tolerance. Various capabilities include contract manufacturing,custom stamping,edge rolling, forming,top laser cutting, roll bending and welding. Finishing and secondary services such as hardware installation, tapping, deburring, cleaning, heat treating, plating, anodizing and painting available. Sheet Metal Prototype and low to high volume production runs offered. Suitable for commercial/residential architectural, aluminum brake shape parts, wall panel systems, brackets, general flashings, rails, call button plates and ship building component parts.