Automobile half shaft tooth milling auxiliary fixture

Abstract

The utility model discloses a kind of auxiliary fixtures of automobile half shaft milling tooth, specifically related to half shaft milling tooth fixture technical field, including support plate, the clamping mechanism that the automobile half shaft of milling tooth processing is clamped is equipped in the inside of support plate, the clamping mechanism includes the placing groove being opened in the inside of support plate, the clamping plate is equipped in both sides of the inside of placing groove, the inside of support plate both sides are movably connected with bidirectional screw rod by bearing, the limit plate is threadedly connected in both ends of each bidirectional screw rod, limit plate one side is fixed with connecting rod, connecting rod one end is fixedly connected with clamping plate, two bidirectional screw rod one end are all equipped with belt pulley, two belt pulley outer sleeve have same belt.The utility model can be clamped to automobile half shaft by clamping mechanism, facilitate next step operation, also by dismounting mechanism, rubber pad can be removed from clamping plate, convenient to replace.

Description

Technical Field

[0001] This utility model relates to the field of axle milling fixture technology, specifically to an auxiliary fixture for axle milling of automobiles. Background Technology

[0002] During the production of axle shafts with splines, the axle shafts are clamped using a one-clamp-one-support method. The chuck is positioned approximately 100mm away from the spline on the shaft. Since the axle shaft is a long shaft with a flange at the tail end, the weight of the tail end affects the axle shaft during milling. This can cause the tail end of the axle shaft to wobble, potentially loosening the clamping point of the chuck and significantly impacting processing efficiency and quality.

[0003] For example, Chinese patent application CN210937502U discloses an auxiliary clamp for milling gears on an automotive half-shaft, including a clamping body and a collar. A connecting rod is slidably connected inside the control cavity, a first wedge block is fixedly connected to the inner surface of the collar, and an eccentric tube is welded to one side of the outer surface of the collar. A locking pin is slidably connected inside the eccentric tube. This technical solution increases the contact area between the clamping plate and the half-shaft by setting a clamping plate with an arc shape that is adapted to the automotive half-shaft, thereby improving the stability of the half-shaft after clamping and making it less prone to loosening and shaking. Through the cooperation between the rotating handle, the inclined plate, and the locking pin, when the half-shaft is clamped, turning the rotating handle causes both the rotating rod and the inclined plate to rotate, allowing the locking pin to insert into the positioning groove. The structure is simple, quickly locks the collar, and clamps the half-shaft in a short time. The clamping of the half-shaft and the locking of the collar can be performed continuously, making the clamping operation convenient and fast.

[0004] However, the following problems still exist in this technical solution: the half shaft is clamped by a spring in this technical solution, but the elasticity of the spring will gradually decrease under long-term stretching, and eventually it will lose its elasticity. The spring that has lost its elasticity will not be able to clamp the half shaft, which has certain limitations in use. Utility Model Content

[0005] The purpose of this utility model is to provide an auxiliary fixture for milling gears on automobile half shafts. The clamping mechanism can clamp the automobile half shafts, which is convenient for the next step of operation. The disassembly mechanism can remove the rubber pad from the clamping plate for easy replacement, thereby solving the above-mentioned shortcomings in the technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary fixture for milling gears on automobile half-shafts, including a support plate, wherein the support plate is provided with a clamping mechanism for clamping automobile half-shafts that are being milled.

[0007] Preferably, the clamping mechanism includes a placement groove inside the support plate, with clamping plates on both sides inside the placement groove. Both sides inside the support plate are movably connected to bidirectional threaded rods via bearings. Each bidirectional threaded rod has a limit plate threaded to both ends. A connecting rod is fixedly provided on one side of the limit plate, and one end of the connecting rod is fixedly connected to the clamping plate for clamping the automobile half shaft.

[0008] Preferably, each of the two bidirectional threaded rods has a pulley extending through one end, and the two pulleys are covered by the same belt. One of the bidirectional threaded rods has a motor fixedly installed at one end to drive the bidirectional threaded rod to rotate.

[0009] Preferably, a rubber pad is provided on the side of each of the two clamping plates that are close to each other. The clamping plate is provided with a disassembly mechanism for disassembling the rubber pad. The disassembly mechanism includes three insertion slots opened on the clamping plate. Three insertion plates are fixedly provided on the side of the rubber pad that is close to the clamping plate. The insertion slots are adapted to the insertion plates. Two first threaded holes are opened on the clamping plate. Two second threaded holes are opened on the rubber pad. The first threaded holes and the second threaded holes that are connected to each other are internally threaded with the same first bolt for disassembling the rubber pad.

[0010] Preferably, the support plate is provided with a support mechanism on one side to facilitate the worker's handling of the support plate. The support mechanism includes a first support rod on one side of the support plate, an installation groove inside the first support rod, a second support rod inserted into the installation groove, a plurality of third threaded holes on the second support rod, a fourth threaded hole on one side of the first support rod, and the fourth threaded hole and the third threaded holes connected to each other are threaded with the same second bolt, which facilitates the worker's handling of the support plate.

[0011] The technical effects and advantages provided by this utility model in the above technical solution are as follows: Place the car half-shaft inside the placement slot, then start the motor. The motor can drive the bidirectional threaded rod to rotate, which in turn drives the limiting plate to move. The movement of the limiting plate can then drive the clamping plate to move. Move the two clamping plates to both sides of the car half-shaft. The clamping plates can then clamp the car half-shaft for easy operation in the next step. Rotate the first bolt to unscrew it from the first and second threaded holes. Then pull the rubber pad to pull the plug plate on the back of the rubber pad out from the plug groove. This will allow you to remove the rubber pad from the clamping plate for easy replacement. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0013] Figure 1 This is a front view of the present invention; Figure 2 This is a rear view of the present invention; Figure 3 This is a schematic diagram of the support mechanism of this utility model; Figure 4 This is a schematic diagram of the clamping mechanism of this utility model; Figure 5 This is a schematic diagram of the disassembly mechanism of this utility model.

[0014] Explanation of reference numerals in the attached figures: 1. Support plate; 2 clamping mechanism, 201 placement slot, 202 clamping plate, 203 bidirectional threaded rod, 204 connecting rod, 205 limiting plate, 206 pulley, 207 belt, 208 motor; 3. Rubber pads; 4. Disassembly mechanism, 401. Insertion slot, 402. Insertion plate, 403. First threaded hole, 404. Second threaded hole, 405. First bolt; 5 Support mechanism, 501 First support rod, 502 Mounting groove, 503 Second support rod, 504 Third threaded hole, 505 Fourth threaded hole, 506 Second bolt. Detailed Implementation

[0015] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0016] This utility model provides, for example Figure 1-5 The illustrated automotive half-shaft milling auxiliary fixture includes a support plate 1, and the support plate 1 is provided with a clamping mechanism 2 for clamping the automotive half-shaft undergoing milling. like Figure 3As shown, a support mechanism 5 is provided on one side of the support plate 1 to facilitate the workers to pick up the support plate 1. The support mechanism 5 includes a first support rod 501 provided on one side of the support plate 1. The first support rod 501 has an installation groove 502 inside. A second support rod 503 is inserted into the installation groove 502. The second support rod 503 has a plurality of third threaded holes 504. A fourth threaded hole 505 is provided on one side of the first support rod 501. The fourth threaded hole 505 and the third threaded hole 504 are connected by the same second bolt 506. Rotate the second bolt 506 to pull it out from inside the third threaded hole 504 and the fourth threaded hole 505. Then pull the second support rod 503 to pull it out from inside the first support rod 501. Adjust the distance between the first support rod 501 and the second support rod 503 according to the worker's habits to facilitate the handling of this utility model.

[0017] like Figure 4 As shown, the clamping mechanism 2 includes a placement groove 201 inside the support plate 1. Clamping plates 202 are provided on both sides inside the placement groove 201. Bidirectional threaded rods 203 are movably connected to both sides inside the support plate 1 via bearings. Each bidirectional threaded rod 203 has a limit plate 205 threaded to both ends. A connecting rod 204 is fixedly provided on one side of the limit plate 205. One end of the connecting rod 204 is fixedly connected to the clamping plate 202. Rubber pads 3 are provided on the sides of the two clamping plates 202 that are close to each other. A pulley 206 is provided through one end of each of the two bidirectional threaded rods 203. The same belt 207 is sleeved on the outside of the two pulleys 206. A motor 208 is fixedly provided on one end of one of the bidirectional threaded rods 203. The support plate 1 is lifted to the top of the car half-shaft by the support mechanism 5, and the car half-shaft is placed inside the placement groove 201. Then, the motor 208 is started, which drives the bidirectional threaded rod 203 to rotate. The two bidirectional threaded rods 203 rotate simultaneously under the action of the pulley 206 and the belt 207. The rotation of the bidirectional threaded rods 203 drives the limiting plate 205 to move. The movement of the limiting plate 205 drives the clamping plate 202 to move. The two clamping plates 202 are moved to both sides of the car half-shaft respectively. The clamping plates 202 can clamp the car half-shaft, which is convenient for the next operation. The rubber pad 3 on one side of the clamping plate 202 can increase the friction between the clamping plate 202 and the car half-shaft and improve stability.

[0018] like Figure 5As shown, the clamping plate 202 is provided with a disassembly mechanism 4 for disassembling the rubber pad 3. The disassembly mechanism 4 includes three insertion slots 401 opened on the clamping plate 202. Three insertion plates 402 are fixedly provided on the side of the rubber pad 3 near the clamping plate 202. The insertion slots 401 are adapted to the insertion plates 402. The clamping plate 202 is provided with two first threaded holes 403. The rubber pad 3 is provided with two second threaded holes 404. The first threaded holes 403 and the second threaded holes 404 are connected internally with the same first bolt 405. Rubber pad 3 is prone to wear after long-term use. Rotate the first bolt 405 to turn it out from the first threaded hole 403 and the second threaded hole 404. Then pull the rubber pad 3 to pull the plug plate 402 on the back of the rubber pad 3 out from the plug groove 401. This will allow the rubber pad 3 to be removed from the clamping plate 202 for easy replacement.

[0019] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An auxiliary fixture for milling gears on automotive half-shafts, comprising a support plate (1), characterized in that: The support plate (1) is provided with a clamping mechanism (2) for clamping the milled car half shaft. The clamping mechanism (2) includes a placement groove (201) inside the support plate (1). Clamping plates (202) are provided on both sides inside the placement groove (201). Bidirectional threaded rods (203) are movably connected to both sides inside the support plate (1) via bearings. Each bidirectional threaded rod (203) is threaded to both ends of a limiting plate (205). A connecting rod (204) is fixedly provided on one side of the limiting plate (205). One end of the connecting rod (204) is fixedly connected to the clamping plate (202).

2. The auxiliary fixture for milling gears on an automotive half-shaft according to claim 1, characterized in that: Both of the two bidirectional threaded rods (203) have a pulley (206) through one end, and the two pulleys (206) are fitted with the same belt (207).

3. The auxiliary fixture for milling gears on an automotive half-shaft according to claim 1, characterized in that: One of the bidirectional threaded rods (203) has a motor (208) fixedly mounted on one end.

4. The auxiliary fixture for milling gears on an automotive half-shaft according to claim 1, characterized in that: Rubber pads (3) are provided on the side of the two clamping plates (202) that are close to each other.

5. The auxiliary fixture for milling gears on an automotive half-shaft according to claim 3, characterized in that: The clamping plate (202) is provided with a disassembly mechanism (4) for disassembling the rubber pad (3); The disassembly mechanism (4) includes three insertion slots (401) on the clamping plate (202). The rubber pad (3) is fixedly provided with three insertion plates (402) on the side near the clamping plate (202). The insertion slots (401) are adapted to the insertion plates (402). The clamping plate (202) has two first threaded holes (403) and the rubber pad (3) has two second threaded holes (404). The first threaded holes (403) and the second threaded holes (404) are connected by the same first bolt (405).

6. The auxiliary fixture for milling gears on an automotive half-shaft according to claim 1, characterized in that: The support plate (1) is provided with a support mechanism (5) on one side to facilitate the staff to pick up the support plate (1); The support mechanism (5) includes a first support rod (501) located on one side of the support plate (1). The first support rod (501) has an installation groove (502) inside. A second support rod (503) is inserted into the installation groove (502). The second support rod (503) has multiple third threaded holes (504) on it. A fourth threaded hole (505) is located on one side of the first support rod (501). The fourth threaded hole (505) and the third threaded hole (504) are connected by the same second bolt (506).

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