Heavy-duty car transmission shaft end face fork end tooth broaching key positioning tool

Abstract

The utility model relates to the technical field of key pulling positioning, and discloses a heavy-duty car transmission shaft end face fork end tooth key pulling positioning tool which comprises a support, a protection frame is fixedly connected to the top of the support, a mold is arranged in the protection frame, a hydraulic cylinder is fixedly connected to the interior of the protection frame, and the output end of the hydraulic cylinder is fixedly connected with a sliding plate. A limiting column is slidably connected into the sliding plate, a clamping jaw is fixedly connected to the side wall of the sliding plate, a bottom plate is arranged on the side wall of the support, and a chip removal assembly is arranged at the top of the bottom plate. The chip removal assembly comprises a supporting column. According to the device, the vibration motor generates vibration to drive the inclined supporting plate to drive the blanking plate to shake, and then the second connecting ring drives the spring to contract, so that the problems that the surface of a workpiece is scratched and the machining precision is reduced due to the fact that metal chippings generated in the cutting process are easily accumulated in a machining area are solved; the practicability of the end face fork end tooth broaching key positioning tool for the transmission shaft of the heavy-duty car is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pull key positioning technical field especially relates to a heavy -duty truck transmission shaft end face fork end tooth pull key positioning frock. BACKGROUND

[0002] In the heavy -duty truck manufacturing field, transmission shaft as the key component of power transmission, its performance directly influences the power transmission efficiency and the driving safety of whole car. The machining precision requirement of transmission shaft end face fork end tooth is extremely high, and pull key positioning frock as the core equipment of guaranteeing fork end tooth machining quality plays the vital role in the production process.

[0003] The existing heavy -duty truck transmission shaft end face fork end tooth pull key positioning frock mostly adopts traditional mechanical positioning structure. Its technical principle is through fixed clamp rigid positioning transmission shaft end face fork, utilizes the cooperation of positioning pin, positioning block and other elements and the positioning datum on workpiece, realizes the accurate clamping of workpiece. In the pull key machining process, rely on the fixed structure of frock to keep the stability of workpiece, and carry out cutting processing to fork end tooth through processing equipment such as broaching machine.

[0004] However, this kind of traditional pull key positioning frock has obvious defects. In the pull key cutting process, the metal chips generated are extremely easy to accumulate in the machining area. Because of lacking effective chip removal measures, these accumulated chips can form an obstacle between the broach and the workpiece surface. When the broach is cutting, the chips can scratch the broach blade or the workpiece surface. Once the broach is damaged, its cutting accuracy will be affected, and it is difficult to guarantee the size accuracy and shape accuracy of the fork end tooth. If the workpiece surface is scratched, its surface finish will be reduced, which will cause problems such as poor fit, stress concentration, etc. during assembly and use of the transmission shaft, seriously affecting the overall performance and service life of the heavy -duty truck transmission shaft. Therefore, a heavy -duty truck transmission shaft end face fork end tooth pull key positioning frock is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a heavy -duty truck transmission shaft end face fork end tooth pull key positioning frock, which aims at improving the problem that the metal chips generated in the cutting process are easy to accumulate in the machining area, causing the broach or workpiece surface to be scratched and reducing the machining accuracy and surface finish.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The application discloses a heavy truck transmission shaft end face fork end tooth pull key positioning tool, which comprises a support, a protection frame is fixedly connected to the top of the support, a mold is arranged in the protection frame, a hydraulic cylinder is fixedly connected to the inside of the protection frame, a sliding plate is fixedly connected to the output end of the hydraulic cylinder, a limiting column is slidably connected to the inside of the sliding plate, a clamping jaw is fixedly connected to the side wall of the sliding plate, a bottom plate is arranged on the side wall of the support, and a chip removal assembly is arranged on the top of the bottom plate.

[0008] The chip removal assembly comprises a support column, the support column is fixedly connected to the top of the bottom plate, a first connecting ring is fixedly connected to the top of the support column, springs are arranged on the outer wall of the first connecting ring, one end of each spring is fixedly connected to the outer wall of the first connecting ring, a second connecting ring is fixedly connected to the other end of each spring, a blanking plate is fixedly connected to the top of the second connecting ring, an inclined support plate is fixedly connected to the bottom of the blanking plate, and a vibration motor is fixedly connected to the bottom of the inclined support plate.

[0009] As a further description of the above technical scheme:

[0010] The inside of the protection frame is fixedly connected with a gas cylinder, and the output end of the gas cylinder is fixedly connected with a hollow block.

[0011] As a further description of the above technical scheme:

[0012] The inside of the protection frame is fixedly connected with a hollow plate, and the side wall of the hollow plate is fixedly connected with a connecting block.

[0013] As a further description of the above technical scheme:

[0014] The inside of the hollow block is rotatably connected with a rotating wheel, and the outer wall of the rotating wheel is rotatably connected in the inside of the hollow plate.

[0015] As a further description of the above technical scheme:

[0016] The side wall of the hollow block is rotatably connected with a connecting plate, and the side wall of the connecting plate is slidably connected to the inner wall of the hollow plate.

[0017] As a further description of the above technical scheme:

[0018] The inside of the connecting plate is fixedly connected with a first fixing column, and the outer wall of the first fixing column is rotatably connected with a clamping plate.

[0019] As a further description of the above technical scheme:

[0020] The inside of the clamping plate is rotatably connected with a second fixing column, and the outer wall of the second fixing column is fixedly connected in the inside of the connecting block.

[0021] As a further description of the above technical scheme:

[0022] The clamping plate side wall is rotatably connected to the hollow plate side wall, and the clamping plate side wall is arranged on the mold side wall.

[0023] The utility model has the advantages of the following:

[0024] In the utility model, the vibration motor generates vibration to drive the inclined support plate to shake the blanking plate, and then drive the spring to contract the second connecting ring, so that the effect of vibration-assisted chip removal is achieved, the problem of metal chips generated in the cutting process easily accumulated in the machining area, causing the broach or workpiece surface to be scratched, reducing the machining precision and surface finish is solved, and the practicability of the heavy truck transmission shaft end face fork end tooth pull key positioning tool is improved.

[0025] In the utility model, the connecting plate of the side wall is driven to rotate by the hollow block driven by the air cylinder, then the clamping plate is driven to rotate in the side wall of the connecting block, and the clamping plate side wall is arranged on the side wall of the mold, so that the effect of quickly replacing the mold is achieved, the problem of manual mold replacement easily introducing human error, causing the machining size to be out of tolerance or the workpiece to be scrapped is solved, and the stability of the heavy truck transmission shaft end face fork end tooth pull key positioning tool is improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 A three-dimensional schematic view of a heavy truck transmission shaft end face fork end tooth pull key positioning tool is provided for the utility model;

[0027] Figure 2 A protective frame side wall structure schematic view of a heavy truck transmission shaft end face fork end tooth pull key positioning tool is provided for the utility model;

[0028] Figure 3 A blanking plate bottom structure schematic view of a heavy truck transmission shaft end face fork end tooth pull key positioning tool is provided for the utility model;

[0029] Figure 4 A protective frame cross-section structure schematic view of a heavy truck transmission shaft end face fork end tooth pull key positioning tool is provided for the utility model;

[0030] Figure 5 For Figure 4 An enlarged view of A in the middle.

[0031] LEGEND:

[0032] 1, support; 2, protection frame; 3, limiting column; 4, hydraulic cylinder; 5, clamping jaw; 6, blanking plate; 7, mold; 8, bottom plate; 9, inclined support plate; 10, vibration motor; 11, support column; 12, first connecting ring; 13, spring; 14, second connecting ring; 15, air cylinder; 16, hollow plate; 17, connecting block; 18, hollow block; 19, rotating wheel; 20, connecting plate; 21, clamping plate; 22, sliding plate; 23, first fixed column; 24, second fixed column. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0034] Referring to Figures 1-3 , the utility model provides an embodiment: a heavy -duty car transmission shaft end face fork end tooth pull key positioning frock, including support 1, support 1 top fixedly connected with protection frame 2, protection frame 2 inside be provided with mould 7, protection frame 2 inside fixedly connected with hydraulic cylinder 4, hydraulic cylinder 4 output end and sliding plate 22 rigid connection, through hydraulic power drive sliding plate 22 along the limiting column 3 sliding, drive clamping jaw 5 complete pull key processing, single stroke processing efficiency improves, be applicable to heavy -duty transmission shaft high hardness material cutting, hydraulic cylinder 4 output end fixedly connected with sliding plate 22, sliding plate 22 inside slidingly connected with limiting column 3, the side wall of sliding plate 22 is fixedly connected with clamping jaw 5, support 1 side wall is provided with bottom plate 8, and bottom plate 8 top is provided with chip removal assembly;

[0035] Chip removal assembly includes support column 11, and support column 11 bottom is fixedly connected at the top of bottom plate 8, and support column 11 top is fixedly connected with first connecting ring 12, and first connecting ring 12 outer wall is provided with spring 13, and one end of spring 13 is fixedly connected on the outer wall of first connecting ring 12, and the other end of spring 13 is fixedly connected with second connecting ring 14, and second connecting ring 14 top is fixedly connected with blanking plate 6, and blanking plate 6 bottom is fixedly connected with inclined support plate 9, and inclined support plate 9 bottom is fixedly connected with vibration motor 10, and vibration motor 10 passes through inclined support plate 9 and transmits vibration to blanking plate 6, and the elastic deformation of spring 13 is used to amplify amplitude, and iron filings are forced to slide along inclined blanking plate 6, and the chip removal efficiency is higher, and tool wear or processing error caused by chip accumulation is avoided;

[0036] Referring to Figure 1 , Figure 4 and Figure 5The hollow block 18 is fixedly connected inside the protection frame 2, the hollow block 18 drives the hollow block 18 to move horizontally, through the lever action of the rotating wheel 19 and the connecting plate 20, drives the clamping plate 21 to rotate around the second fixed column 24, realizes the quick release of the mold 7, the mold 7 replacement time is shortened, the hollow block 18 is fixedly connected at the output end of the cylinder 15, the hollow plate 16 is fixedly connected inside the protection frame 2, the connecting block 17 is fixedly connected to the side wall of the hollow plate 16, the rotating wheel 19 is rotatably connected inside the hollow plate 16, the connecting plate 20 is rotatably connected to the side wall of the hollow block 18, the connecting plate 20 is slidably connected to the inner wall of the hollow plate 16, the first fixed column 23 is fixedly connected inside the connecting plate 20, the clamping plate 21 is rotatably connected to the outer wall of the first fixed column 23, the second fixed column 24 is rotatably connected inside the connecting block 17, the clamping plate 21 is rotatably connected to the side wall of the hollow plate 16, and the clamping plate 21 is arranged on the side wall of the mold 7;

[0037] Working principle: when using the heavy truck transmission shaft end face fork end tooth pull key positioning tool, first, the pull groove cutter is placed in the inside of the clamping jaw 5, the pull groove cutter is fixed, then the workpiece to be machined is sleeved on the outer wall of the pull groove cutter, then the workpiece is placed close to the side wall of the mold 7, then the sliding plate 22 is driven to move by the output end of the hydraulic cylinder 4, then the sliding plate 22 moves to drive the pull groove cutter to move, then the key groove required by the workpiece is pulled out;

[0038] Then when the iron filings generated after pulling the key are cleaned, the iron filings first fall to the top of the discharging plate 6, then the vibration motor 10 generates vibration, then the vibration is transmitted to the inclined support plate 9, then the discharging plate 6 is driven to shake, then the second connecting ring 14 at the bottom is driven to shake during the shaking of the discharging plate 6, then the spring 13 on the outer wall is driven to shake during the shaking of the second connecting ring 14, then the spring 13 is connected through the first connecting ring 12 and the support column 11, then the effect of vibration assisted chip removal is achieved;

[0039] When the mold 7 is disassembled, the hollow block 18 is first moved by the output end of the air cylinder 15, and then the rotating wheel 19 on the inner wall is driven to move in the hollow plate 16 during the movement of the hollow block 18. Then, the connecting plate 20 on the side wall is driven to rotate during the movement of the hollow block 18, and then the first fixed column 23 in the interior is driven to rotate by the rotation of the connecting plate 20. Then, the clamping plate 21 on the side wall is driven to rotate by the rotation of the first fixed column 23, and then the side wall of the clamping plate 21 is separated from the side wall of the mold 7 during the rotation of the clamping plate 21. Then, the mold 7 can be pulled out to be separated from the interior of the protection frame 2, so that the effect of quickly replacing the mold 7 is achieved.

[0040] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for the person skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of protection of the present application.

Claims

1. A positioning fixture for the fork end teeth of a heavy-duty vehicle drive shaft, comprising a bracket (1), characterized in that: The top of the bracket (1) is fixedly connected to a protective frame (2), a mold (7) is provided inside the protective frame (2), a hydraulic cylinder (4) is fixedly connected inside the protective frame (2), a sliding plate (22) is fixedly connected to the output end of the hydraulic cylinder (4), a limit post (3) is slidably connected inside the sliding plate (22), a gripper (5) is fixedly connected to the side wall of the sliding plate (22), a base plate (8) is provided on the side wall of the bracket (1), and a chip removal assembly is provided on the top of the base plate (8); The chip removal assembly includes a support column (11), the bottom of which is fixedly connected to the top of the base plate (8). A first connecting ring (12) is fixedly connected to the top of the support column (11). A spring (13) is provided on the outer wall of the first connecting ring (12). One end of the spring (13) is fixedly connected to the outer wall of the first connecting ring (12), and the other end of the spring (13) is fixedly connected to a second connecting ring (14). A feed plate (6) is fixedly connected to the top of the second connecting ring (14). A diagonal brace (9) is fixedly connected to the bottom of the feed plate (6), and a vibration motor (10) is fixedly connected to the bottom of the diagonal brace (9).

2. The positioning fixture for the fork end teeth of a heavy-duty vehicle drive shaft according to claim 1, characterized in that: A cylinder (15) is fixedly connected inside the protective frame (2), and a hollow block (18) is fixedly connected to the output end of the cylinder (15).

3. The positioning fixture for the fork end teeth of a heavy-duty vehicle drive shaft according to claim 2, characterized in that: A hollow plate (16) is fixedly connected inside the protective frame (2), and a connecting block (17) is fixedly connected to the side wall of the hollow plate (16).

4. The positioning fixture for the fork end teeth of a heavy-duty vehicle drive shaft according to claim 3, characterized in that: The hollow block (18) is rotatably connected to a rotating wheel (19), and the outer wall of the rotating wheel (19) is rotatably connected to the inside of the hollow plate (16).

5. The positioning fixture for the fork end teeth of a heavy-duty vehicle drive shaft according to claim 4, characterized in that: The hollow block (18) has a connecting plate (20) rotatably connected to its side wall, and the side wall of the connecting plate (20) is slidably connected to the inner wall of the hollow plate (16).

6. The positioning fixture for the fork end teeth of a heavy-duty vehicle drive shaft according to claim 5, characterized in that: The connecting plate (20) is fixedly connected to a first fixing column (23), and the outer wall of the first fixing column (23) is rotatably connected to a clamping plate (21).

7. A positioning fixture for the fork end teeth of a heavy-duty vehicle drive shaft according to claim 6, characterized in that: The clamping plate (21) is rotatably connected to a second fixing post (24), and the outer wall of the second fixing post (24) is fixedly connected to the inside of the connecting block (17).

8. The positioning fixture for the fork end teeth of a heavy-duty vehicle drive shaft according to claim 7, characterized in that: The side wall of the clamping plate (21) is rotatably connected to the side wall of the hollow plate (16), and the side wall of the clamping plate (21) is set on the side wall of the mold (7).

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