CN217832463U - Brake shoe welding tool - Google Patents

Abstract

The utility model discloses a brake shoe welding tool, which relates to welding positioning technology. It includes bracket, positioning block, jacking mechanism and installation box; the jacking mechanism is installed above the installation box, and the positioning block is movably interspersed in the installation box, and a driving mechanism for driving the positioning block is installed in the installation box; the jacking mechanism is close to One side of the positioning block is fixedly installed with a plurality of telescopic rods, the outer periphery of the telescopic rods is provided with a spring, and the end of the telescopic rods is fixedly installed with a clamping plate; two cylinders are fixedly installed in the installation box, and the ends of the two cylinders are fixed. A connecting rod is fixedly installed, the connecting rod runs through the installation box and extends to the top of the positioning block, and the connecting rod is movably connected with the penetrating part of the installation box; the top end of the connecting rod is fixedly installed with a pressing plate. The utility model has a reasonable structure, avoids the problem that the vibration caused by the rigid collision easily causes the displacement of the connecting piece and/or the shoe plate, and is beneficial to workers to weld the brake shoe better.

Description

A brake shoe welding tool

technical field

The utility model relates to welding positioning technology, more specifically, it relates to a brake shoe welding tool.

Background technique

The brake shoe refers to an automobile brake accessory that is pushed outward by the action of the brake cam or push rod to suppress the brake drum to exert the braking effect. Brake shoes are mainly composed of connectors, shoe plates and brake pads. During production, the connecting piece is first welded on the shoe, and then the brake pads are assembled on the shoe. The connecting piece is usually welded at the center of the shoe plate by spot welding on both sides. In order to ensure the welding quality, the workshop will be equipped with special welding tooling for brake shoes. These welding fixtures are provided with a positioning block whose shape is made according to the shape of the connecting piece to be welded and the shape of the shoe. The worker places the connecting piece and the shoe on the welding tool, and then clamps the connecting block with auxiliary tools such as pliers or F clamps, and the shoe is pressed against the welding tool by the clamping mechanism on the welding tool to perform welding . However, when these auxiliary tools are clamped, they all have the same disadvantage: the raised portion is too high, which easily interferes with the welding torch. Moreover, at the moment when the existing clamping mechanism contacts the clamping shoe, the rigid collision between the two will generate relatively large vibrations, which will easily cause displacement of the connecting piece and/or the shoe, resulting in large subsequent welding errors and easily producing waste products. question.

Utility model content

The technical problem to be solved by the utility model is to provide a brake shoe welding tool for the deficiencies of the prior art, which solves the problem that the existing welding tool easily interferes with the welding torch when clamping the connecting piece and the shoe plate, and due to rigidity The vibrations caused by the impact can easily cause problems with the movement of the joints and/or the shoes.

A brake shoe welding tool described in the utility model includes a bracket, a positioning block and a tightening mechanism, and also includes a mounting box; the bracket is fixedly installed under the mounting box, and the tightening mechanism is installed in the Above, the positioning block is movably interspersed in the installation box, and a driving mechanism for driving the positioning block to lift is installed in the installation box; a plurality of telescopic rods are fixedly installed on the side of the top tightening mechanism close to the positioning block, and the The outer periphery of the telescopic rod is provided with a spring, and the end of the telescopic rod is fixedly installed with a top tightening plate; two cylinders are fixedly installed in the installation box, and connecting rods are fixedly installed at the ends of the two cylinders. The rod runs through the installation box and extends above the positioning block, and the connecting rod is movably connected with the penetrating part of the installation box; the top end of the connecting rod is fixedly mounted with a pressure plate.

The driving mechanism includes a rotating shaft, a screw, a hypoid gear pair and two guide slide bars; the rotating shaft is installed in the installation box, one end of the rotating shaft extends to the outside of the installation box, and the installation box extends The end to the outside of the installation box is the power input end of the shaft drive mechanism; one end of the screw is installed on the bottom of the installation box through the bearing seat, the bottom of the positioning block is provided with a threaded hole, and the other end of the screw is screwed In the threaded hole; the two guide sliders are fixedly installed on the bottom of the installation box, and the positioning blocks on both sides of the threaded hole are also provided with slide holes matching the guide sliders, and the two guide sliders The rods are inserted in the sliding holes correspondingly one by one; the gear one of the hypoid gear pair is fixedly installed on the rotating shaft, the gear two of the hypoid gear pair is fixedly installed on the screw rod, and the hypoid gear pair The first gear of the pair meshes with the second gear of the hypoid gear pair.

The power input end is connected with a stepping motor or a hand wheel.

A scale is provided on the side wall of the positioning block.

The clamping mechanism includes cylinder two, a mounting plate and a clamping seat, the cylinder two is fixedly mounted on the installation box, the mounting plate is fixedly mounted on the piston end of the cylinder two, and the clamping seat is fixedly mounted on the mounting plate The side away from cylinder 2; two slide rails are fixedly installed on the installation box, and the top tight seat is slidably connected with the slide rails; the shape of the top tight seat near the positioning block is the same The shape of one side is consistent; one end of the telescopic rod is fixedly installed on the side of the top tight seat close to the positioning block.

The clamping plate is made of spring steel.

Beneficial effect

The utility model has the advantages that a spring and a telescopic rod are arranged on the contact surface between the clamping seat and the positioning seat, and at the same time, the spring steel is used to make the clamping plate, so that the spring between the clamping plate and the shoe on the side of the positioning seat is realized. collision, thereby avoiding the problem that the vibration caused by the rigid collision easily causes the displacement of the connecting piece and/or the shoe plate. In addition, by setting the cylinder 1 in the installation box, and the pressure plate above the cylinder 1 presses the connecting piece, the problem of interference between the welding torch and the auxiliary tool caused by the use of traditional auxiliary tools is avoided, which is beneficial to workers. The brake shoes are welded.

Description of drawings

Fig. 1 is the structural schematic diagram of welding frock of the present utility model overlooking;

Fig. 2 is a schematic diagram of the internal installation structure of the installation box of the present invention.

Among them: 1-bracket, 2-positioning block, 3-installation box, 4-telescopic rod, 5-spring, 6-top tight plate, 7-cylinder one, 8-connecting rod, 9-press plate, 10-rotating shaft, 11 -screw, 12-guide slide rod, 13-gear 1 of hyperboloid gear pair, 14-gear 2 of hyperboloid gear pair, 15-handwheel, 16-cylinder 2, 17-mounting plate, 18-top tight seat, 19 - slide rail.

Detailed ways

Below in conjunction with embodiment, the utility model is further described, but does not constitute any restriction to the utility model, anyone makes the modification of limited number of times in the scope of the claims of the utility model, still within the scope of the claims of the utility model .

Referring to Fig. 1-Fig. 2, a kind of brake shoe welding tool of the present invention includes bracket 1, positioning block 2, jacking mechanism and installation box 3. Wherein, the tightening mechanism includes a cylinder two 16, a mounting plate 17 and a tightening seat 18. Cylinder two 16 are fixedly installed on the installation box 3, and mounting plate 17 is fixedly installed on the piston end of cylinder two 16, and top tight seat 18 is fixedly installed on the side of mounting plate 17 away from cylinder two 16. Two slide rails 19 are fixedly installed on the installation box 3, and the tight seat 18 is slidably connected with the slide rails 19. The shape of the side of the tight seat 18 close to the positioning block 2 is consistent with the shape of the side of the positioning block 2 close to the tight seat 18 . One end of the telescopic rod 4 is fixedly installed on the side near the positioning block 2 of the tight seat 18 . Through the driving action of the cylinder two 16, the tightening plate 6 installed on one side of the tightening seat 18 can be moved toward the positioning block 2, thereby tightening the shoe plate on the positioning block 2 sides.

The bracket 1 is fixedly installed under the installation box 3, and the positioning block 2 is movably interspersed in the installation box 3, and a driving mechanism for driving the positioning block 2 to lift is installed in the installation box 3. Specifically, the driving mechanism includes a rotating shaft 10 , a screw rod 11 , a hypoid gear pair and two guide sliders 12 . The rotating shaft 10 is installed in the installation box 3 rotatably, one end of the rotating shaft 10 extends to the outside of the installation box 3, and the end of the installation box 3 extending to the outside of the installation box 3 is the power input end of the rotating shaft drive mechanism. Wherein, the power input end is connected with a stepping motor or a hand wheel 15 . The connection handwheel 15 structure that present embodiment adopts.

It should be noted that when the handwheel 15 is used, when the handwheel 15 is not operated, it is necessary to use other tools to position the handwheel 15, so as to avoid the phenomenon that the handwheel 15 rotates during the use of the welding tool. As for which method to use to locate it, those skilled in the art can undoubtedly make an adaptive choice based on their own common sense, and it is not a technical feature required to be protected by the utility model, so no more discuss.

One end of the screw rod 11 is installed on the bottom of the installation box 3 through the rotation of the bearing seat, and the bottom of the positioning block 2 is provided with a threaded hole, and the other end of the screw rod 11 is screwed in the threaded hole. The two guide slide bars 12 are all fixedly installed on the bottom of the installation box 3, and the positioning blocks 2 on both sides of the threaded holes are also provided with slide holes matching the guide slide bars 12, and the two guide slide bars 12 are inserted one by one. connected to the sliding hole. The gear one 13 of the hypoid gear pair is fixedly installed on the rotating shaft 10, the gear two 14 of the hypoid gear pair is fixedly installed on the screw rod 11, the gear one 13 of the hypoid gear pair and the gear two of the hypoid gear pair 14 meshed.

After the rotating shaft 10 rotates, the screw rod 11 can be rotated through the transmission effect of the hypoid gear pair, and the positioning block 2 can be moved up or down to realize the lifting of the positioning block 2 . Therefore, the height position of the positioning block 2 can be adjusted, and the problem of large deviation of the brake shoe after welding caused by the difference in thickness of connecting parts of different batches can be avoided.

Preferably, a scale is provided on the side wall of the positioning block 2 to facilitate the adjustment of the height of the positioning block 2 .

The tightening mechanism is fixedly equipped with a plurality of telescopic rods 4 near the side of the positioning block 2, the periphery of the telescopic rods 4 is provided with a spring 5, and the end of the telescopic rods 4 is fixedly mounted with a tightening plate 6. Through the setting of the telescopic rod 4 and the spring 5, the elastic collision between the clamping plate 6 and the positioning block 2 is realized, thereby avoiding the problem that the vibration caused by the rigid collision easily causes the displacement of the connecting piece and/or the shoe.

Two cylinders one 7 are fixedly installed in the installation box 3, and the ends of the two cylinders one 7 are fixedly equipped with connecting rods 8, the connecting rods 8 run through the installation box 3 and extend to the top of the positioning block 2, and the connecting rods 8 and the installation box 3's through-part activity connection. A pressing plate 9 is fixedly mounted on the top of the connecting rod 8 . Through the driving action of the cylinder one 7 on the pressing plate 9, the pressing plate 9 can be raised or lowered, thereby realizing the compression or release of the connecting piece.

Preferably, the clamping plate 6 is made of spring steel, which can realize the deformation of the clamping plate 6, so as to facilitate better contact between the clamping plate 6 and the shoe, and better tighten the shoe.

The working principle of the utility model is: first place the shoe on one side of the positioning block 2, so that the shoe is located between the positioning block 2 and the top clamping plate 6, and then start the cylinder two 16, through the driving action of the cylinder two 16 Make that the tight plate 6 is pressed against the hoof plate. After the shoe is tightened, place the connecting piece above the positioning block 2, and after adjusting the position of the connecting piece, start the cylinder 2 16 to make the pressure plate 9 descend through the driving action of the cylinder 2 16, and press it on the connecting piece , so that the connecting parts are pressed tightly, and the welding can be performed. And because the surface of the pressure plate is relatively flat and the overall thickness is thinner than that of traditional auxiliary tools, it will not interfere with the welding torch, which is beneficial to the workers to weld the brake shoes better.

The above is only the preferred embodiment of the present utility model, it should be pointed out that for those skilled in the art, under the premise of not departing from the structure of the present utility model, some deformations and improvements can also be made, and these will not affect the present utility model. Effects of utility model implementation and practicability of patents.

Claims (6)

1. A brake shoe welding tool comprises a support (1), a positioning block (2) and a jacking mechanism, and is characterized by further comprising an installation box (3); the support (1) is fixedly arranged below the installation box (3), the jacking mechanism is arranged above the installation box (3), the positioning block (2) is movably inserted into the installation box (3), and a driving mechanism for driving the positioning block (2) to lift is arranged in the installation box (3); a plurality of telescopic rods (4) are fixedly installed on one side, close to the positioning block (2), of the jacking mechanism, springs (5) are sleeved on the peripheries of the telescopic rods (4), and a jacking plate (6) is fixedly installed at the tail ends of the telescopic rods (4); two cylinders I (7) are fixedly mounted in the mounting box (3), a connecting rod (8) is fixedly mounted at the tail ends of the two cylinders I (7), the connecting rod (8) penetrates through the mounting box (3) and extends to the upper side of the positioning block (2), and the connecting rod (8) is movably connected with the penetrating part of the mounting box (3); and a pressing plate (9) is fixedly arranged at the top end of the connecting rod (8).

2. The brake shoe welding tool according to claim 1, wherein the driving mechanism comprises a rotating shaft (10), a screw (11), a hypoid gear pair and two guide sliding rods (12); the rotating shaft (10) is rotatably installed in the installation box (3), one end of the rotating shaft (10) extends to the outer side of the installation box (3), and one end of the installation box (3) extending to the outer side of the installation box (3) is a power input end of the rotating shaft driving mechanism; one end of the screw rod (11) is rotatably installed at the bottom of the installation box (3) through a bearing seat, a threaded hole is formed in the bottom of the positioning block (2), and the other end of the screw rod (11) is screwed in the threaded hole; the two guide sliding rods (12) are fixedly arranged at the bottom of the mounting box (3), sliding holes matched with the guide sliding rods (12) are further formed in the positioning blocks (2) on two sides of the threaded hole, and the two guide sliding rods (12) are correspondingly inserted into the sliding holes one by one; a first gear (13) of the hypoid gear pair is fixedly mounted on the rotating shaft (10), a second gear (14) of the hypoid gear pair is fixedly mounted on the screw rod (11), and the first gear (13) of the hypoid gear pair is meshed with the second gear (14) of the hypoid gear pair.

3. The brake shoe welding tool according to claim 2, characterized in that a stepping motor or a hand wheel (15) is connected to the power input end.

4. The brake shoe welding tool according to claim 2, characterized in that scales are arranged on the side wall of the positioning block (2).

5. The brake shoe welding tool according to claim 4, wherein the jacking mechanism comprises a second cylinder (16), a mounting plate (17) and a jacking seat (18), the second cylinder (16) is fixedly mounted on the mounting box (3), the mounting plate (17) is fixedly mounted at the piston end of the second cylinder (16), and the jacking seat (18) is fixedly mounted on one side, far away from the second cylinder (16), of the mounting plate (17); two sliding rails (19) are fixedly mounted on the mounting box (3), and the jacking seat (18) is connected with the sliding rails (19) in a sliding manner; the shape of one side of the jacking seat (18) close to the positioning block (2) is consistent with the shape of one side of the positioning block (2) close to the jacking seat (18); one end of the telescopic rod (4) is fixedly arranged on one side, close to the positioning block (2), of the jacking seat (18).

6. The brake shoe welding tool according to claim 1, characterized in that the tightening plate (6) is made of spring steel.

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