Positioning jig for steering knuckle machining

Abstract

The utility model discloses a positioning jig for steering knuckle processing, which comprises a jig, a lead screw is arranged in the jig, the front surface of the lead screw is fixedly connected with a positioning plate and a travelling mechanism, the travelling mechanism comprises a support frame fixedly connected to the back surface of the jig, the left side and the right side of the bottom of the support frame are fixedly connected with support plates, and the support plates are fixedly connected with the positioning plate. A round rod is movably connected to the inner wall of the supporting plate through a bearing, rolling wheels are fixedly connected to the left end and the right end of the round rod, a rotating rod is movably connected to the inner wall of the supporting frame through a bearing, and transmission wheels are fixedly connected to the surface of the rotating rod and the surface of the round rod. When the positioning jig for steering knuckle machining is used, under the action of the advancing mechanism, the linkage mechanism, the clutch driving mechanism, the control mechanism and the fixing mechanism, rotation of the lead screw and overall movement of the jig can be electrically driven, the problems that the positioning jig for steering knuckle machining is difficult to move and time and labor are consumed due to manual operation are solved, and the positioning jig has the advantage of being convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of steering knuckle processing technology, specifically a positioning fixture for steering knuckle processing. Background Technology

[0002] A positioning fixture for steering knuckle machining is a specialized auxiliary tool used in the machining process of automotive steering knuckles. Its main function is to ensure precise positioning of the steering knuckle during machining, improving machining accuracy and efficiency. By using the positioning fixture, the steering knuckle can be stably positioned in multiple directions, meeting the demands of numerous machining steps. It also reduces the operator's workload, making the machining process more convenient and faster.

[0003] For example, Chinese Patent Application No. 201910774422.7 discloses a steering knuckle machining fixture, including an upper fixed plate, a lower fixed plate, a drive mechanism, a pressure plate, a flange positioning base, and a support journal positioning mechanism. The support journal positioning mechanism includes a mounting plate, an adjusting screw, and a positioning plate. One end of the adjusting screw has a wrench, and the other end of the adjusting screw is rotatably connected to the positioning plate. The adjusting screw passes through the mounting plate and is threadedly connected to the mounting plate. The end of the positioning plate away from the adjusting screw has a positioning groove for positioning the steering knuckle. This steering knuckle machining fixture solves the technical problem that the positioning part of the support journal in traditional steering knuckle machining fixtures cannot adjust the positioning position, thus failing to effectively position support journals of different diameters.

[0004] In the machining of steering knuckles, traditional positioning fixtures often require manual operation of the lead screw rotation and lack convenient moving devices. This not only increases the time and labor costs of operation, but also limits the flexibility of the fixture's movement, thus affecting machining efficiency and convenience.

[0005] Therefore, it is necessary to design and modify the positioning fixture used for steering knuckle machining to effectively prevent the problems of time-consuming and labor-intensive manual operation and inconvenient movement. Utility Model Content

[0006] To address the problems mentioned in the background art, the purpose of this utility model is to provide a positioning fixture for steering knuckle processing, which has the advantages of being easy to use and solves the problems of time-consuming and labor-intensive manual operation and inconvenient movement.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a positioning fixture for machining steering knuckles, comprising a fixture, a lead screw installed inside the fixture, a positioning plate fixedly connected to the front of the lead screw, a traveling mechanism, the traveling mechanism including a support frame fixedly connected to the back of the fixture, support plates fixedly connected to the left and right sides of the bottom of the support frame, a round rod movably connected to the inner wall of the support plate via bearings, rollers fixedly connected to the left and right ends of the round rod, a rotating rod movably connected to the inner wall of the support frame via bearings, transmission wheels fixedly connected to the surface of the rotating rod and the surface of the round rod, a transmission belt sleeved on the surface of the transmission wheels, casters fixedly connected to the left and right sides of the bottom of the fixture, and a linkage mechanism provided on the rear side of the fixture.

[0008] As a preferred embodiment of this utility model, the linkage mechanism includes a transmission rod fixedly connected to the rear end of the lead screw, a transmission cylinder slidably connected to the surface of the transmission rod, two support blocks movably connected to the surface of the transmission cylinder through bearings, the bottom of the support blocks being fixedly connected to the top of the support frame, and a clutch drive mechanism being provided on the rear side of the fixture.

[0009] As a preferred embodiment of this utility model, the clutch drive mechanism includes a dual-axis motor fixedly connected to the inner wall of the support frame. The upper and lower output ends of the dual-axis motor are both fixedly connected to a drive rod. A bevel gear 1 is slidably connected to the surface of the drive rod. A bevel gear 2 meshes with the top of the upper bevel gear 1. The inner wall of the bevel gear 2 is fixedly connected to the surface of the transmission cylinder. A bevel gear 3 is provided below the lower bevel gear 1. The left side of the bevel gear 3 is fixedly connected to the right side of the transmission wheel. A control mechanism is provided at the rear of the fixture.

[0010] As a preferred embodiment of this utility model, the control mechanism includes a connecting cylinder fixedly connected to the inner side of the first bevel gear. The surface of the connecting cylinder is slidably connected with a connecting ring, and the surface of the connecting ring is fixedly connected with a linkage frame. The linkage frame can drive the connecting ring to move, thereby using the connecting cylinder to drive the first bevel gear to slide downward on the surface of the driving rod, so that the upper bevel gear disengages from the meshing with the second bevel gear, and the lower bevel gear meshes with the third bevel gear. A fixing mechanism is provided on the rear side of the fixture.

[0011] As a preferred embodiment of this utility model, the fixing mechanism includes slots formed on the upper and lower sides of the back of the support frame. A card plate is slidably connected to the inner wall of the upper slot. The card plate is slidably connected to the inside of the linkage frame. A spring plate is movably connected to the back of the card plate. A fixing plate is fixedly connected to the bottom of the spring plate. The front of the fixing plate is fixedly connected to the back of the support frame.

[0012] As a preferred embodiment of this utility model, a handle is fixedly connected to the back of the linkage frame, and the handle can conveniently drive the linkage frame to move.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. When this utility model is used, under the action of the traveling mechanism, linkage mechanism, clutch drive mechanism, control mechanism and fixing mechanism, it can electrically drive the rotation of the lead screw and the overall movement of the fixture, avoiding the difficulty of moving the positioning fixture for steering knuckle processing and the time-consuming and labor-intensive manual operation, thus giving it the advantage of being easy to use.

[0015] 2. This utility model achieves the transmission connection between the lead screw and the support frame by setting up a linkage mechanism. This enables different components of the fixture to work together, improving the functional integration of the entire device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the traveling mechanism of this utility model;

[0018] Figure 3 This is a schematic diagram of the clutch drive mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of a partial structural separation of the present invention;

[0020] Figure 5 This is a schematic diagram of the fixing mechanism of this utility model;

[0021] Figure 6 This is a partial cross-sectional view of a part of the present invention.

[0022] In the diagram: 1. Fixture; 2. Lead screw; 3. Positioning plate; 4. Support frame; 5. Support plate; 6. Round rod; 7. Roller; 8. Rotating rod; 9. Transmission wheel; 10. Transmission belt; 11. Universal wheel; 12. Transmission rod; 13. Transmission cylinder; 14. Support block; 15. Driving rod; 16. Bevel gear one; 17. Bevel gear two; 18. Bevel gear three; 19. Connecting cylinder; 20. Connecting ring; 21. Linkage frame; 22. Slot; 23. Card plate; 24. Spring plate; 25. Fixing plate; 26. Handle; 27. Dual-axis motor. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1 to 6 As shown, the present invention provides a positioning fixture for machining steering knuckles, including a fixture 1, a lead screw 2 installed inside the fixture 1, a positioning plate 3 fixedly connected to the front of the lead screw 2, a traveling mechanism, a support frame 4 fixedly connected to the back of the fixture 1, support plates 5 fixedly connected to the left and right sides of the bottom of the support frame 4, a round rod 6 movably connected to the inner wall of the support plate 5 through bearings, rollers 7 fixedly connected to the left and right ends of the round rod 6, a rotating rod 8 movably connected to the inner wall of the support frame 4 through bearings, a transmission wheel 9 fixedly connected to the surface of the rotating rod 8 and the surface of the round rod 6, a transmission belt 10 sleeved on the surface of the transmission wheel 9, universal wheels 11 fixedly connected to the left and right sides of the bottom of the fixture 1, and a linkage mechanism provided on the rear side of the fixture 1.

[0025] refer to Figure 6 The linkage mechanism includes a transmission rod 12 fixedly connected to the rear end of the lead screw 2. A transmission cylinder 13 is slidably connected to the surface of the transmission rod 12. Two support blocks 14 are movably connected to the surface of the transmission cylinder 13 through bearings. The bottom of the support blocks 14 is fixedly connected to the top of the support frame 4. A clutch drive mechanism is provided on the rear side of the fixture 1.

[0026] As a technical optimization of this utility model, a linkage mechanism is set up to realize the transmission connection between the lead screw 2 and the support frame 4. This enables different components of the fixture 1 to work together, improving the functional integration of the entire device.

[0027] refer to Figure 3 The clutch drive mechanism includes a dual-axis motor 27 fixedly connected to the inner wall of the support frame 4. The upper and lower output ends of the dual-axis motor 27 are both fixedly connected to the drive rod 15. The surface of the drive rod 15 is slidably connected to the first bevel gear 16. The top of the upper bevel gear 16 is meshed with the second bevel gear 17. The inner wall of the second bevel gear 17 is fixedly connected to the surface of the transmission cylinder 13. The lower side of the lower bevel gear 16 is provided with the third bevel gear 18. The left side of the third bevel gear 18 is fixedly connected to the right side of the transmission wheel 9. The rear side of the fixture 1 is provided with a control mechanism.

[0028] As a technical optimization of this utility model, by setting a clutch drive mechanism, the clutch and switching of power are realized, so that the fixture 1 can adapt to different working requirements.

[0029] refer to Figure 4The control mechanism includes a connecting cylinder 19 fixedly connected to the inner side of bevel gear 16. Connecting rings 20 are slidably connected to the surface of the connecting cylinder 19. A linkage frame 21 is fixedly connected to the surface of the connecting rings 20. The linkage frame 21 can drive the connecting rings 20 to move, thereby using the connecting cylinder 19 to drive bevel gear 16 to slide downward on the surface of the drive rod 15, so that the upper bevel gear 16 disengages from bevel gear 2 17, and the lower bevel gear 16 meshes with bevel gear 3 18. A fixing mechanism is provided on the rear side of the fixture 1.

[0030] As a technical optimization of this utility model, a control mechanism is set up to achieve convenient control of the clutch drive mechanism. The linkage frame 21 drives the connecting ring 20 to move, which in turn drives the bevel gear 16 to slide on the drive rod 15, realizing clutch switching. This design is simple to operate and can be achieved through the handle 26, without the need for complicated operating tools or procedures, thus improving the convenience and efficiency of operation and reducing the difficulty of operation.

[0031] refer to Figure 5 The fixing mechanism includes slots 22 on the upper and lower sides of the back of the support frame 4. The inner wall of the upper slot 22 is slidably connected to a plate 23. The plate 23 is slidably connected inside the linkage frame 21. The back of the plate 23 is movably connected to a spring plate 24. The bottom of the spring plate 24 is fixedly connected to a fixing plate 25. The front of the fixing plate 25 is fixedly connected to the back of the support frame 4.

[0032] As a technical optimization of this utility model, a fixing mechanism is provided to fix the linkage frame 21. The clamping plate 23 slides within the clamping groove 22, and the elastic plate 24 provides elastic force, enabling the clamping plate 23 to be stably fixed within the clamping groove 22, thus ensuring the stability of the linkage frame 21 during operation. This fixing design is simple and reliable, effectively preventing displacement of the linkage frame 21 during operation and improving the working accuracy and reliability of the entire device.

[0033] refer to Figure 5 A handle 26 is fixedly connected to the back of the linkage frame 21, which can easily move the linkage frame 21.

[0034] As a technical optimization of this utility model, by setting a handle 26, the operator can directly grasp the handle 26 to move the linkage frame 21 without the need for additional tools or complicated operating actions. The design of the handle 26 conforms to ergonomic principles, allowing the operator to easily apply force, improving operating comfort and efficiency, and reducing the operator's labor intensity.

[0035] The working principle and usage process of this utility model are as follows: In use, this device unfolds around the fixture 1, integrating multiple functions such as movement, linkage, clutch transmission, control, and fixation. A support frame 4 is fixed to the back of the fixture 1. Round rods 6 are installed on both sides of the bottom of the support frame 4 via support plates 5. Rollers 7 are installed at both ends of the round rods 6 to achieve rolling. At the same time, a rotating rod 8 is installed on the inner wall of the support frame 4. Both the rotating rod 8 and the round rod 6 have transmission wheels 9 on their surfaces and are connected by a transmission belt 10. In addition, universal wheels 11 are also equipped on both sides of the bottom of the fixture 1. After being driven by the clutch drive mechanism, the transmission belt 10 drives the round rods 6 and the rollers 7 to roll, which, together with the universal wheels 11, enables the fixture 1 to move. In terms of the linkage mechanism, a transmission rod 12 is fixed to the rear end of the lead screw 2. A transmission cylinder 13 is slidably connected to the surface of the transmission rod 12. The transmission cylinder 13 is connected to two support blocks 14 through bearings. These support blocks 14 are fixed to the top of the support frame 4. When the transmission cylinder 13 rotates, it drives the transmission rod 12 to rotate, which in turn drives the lead screw 2 to rotate, thereby controlling the movement of the positioning plate 3. The clutch drive mechanism is realized by a dual-axis motor 27 on the inner wall of the support frame 4. The upper and lower output ends of the motor are fixed with a drive rod 15, and a bevel gear 16 is slidably connected to the surface of the drive rod 15. The upper bevel gear 16 meshes with a bevel gear 17 on the surface of the transmission cylinder 13, while a bevel gear 18 is provided below the lower bevel gear 16. By controlling the position of the bevel gear 16 on the drive rod 15 through the control mechanism, the meshing or disengagement between the bevel gear 16 and the bevel gear 17 or the bevel gear 18 can be realized, allowing for flexible switching of its drive path. The working principle of the control mechanism is that a connecting cylinder 19 is fixed inside the bevel gear 16, and a connecting ring 20 is slidably connected to the surface of the connecting cylinder 19, which in turn fixes the linkage frame 21. When the linkage frame 21 moves, it drives the connecting ring 20 to move, which in turn causes the bevel gear 16 to slide downward on the surface of the drive rod 15 via the connecting cylinder 19. This disengages the upper bevel gear 16 from the bevel gear 27, while the lower bevel gear 16 engages with the bevel gear 38, thus changing the transmission path. Regarding the fixing mechanism, the support frame 4 has slots 22 on both the upper and lower sides of its back. A locking plate 23 is slidably connected within the upper slot 22. The locking plate 23 is not only slidably connected inside the linkage frame 21, but its back is also movably connected to a spring plate 24. A fixing plate 25 is fixed to the bottom of the spring plate 24, which is then fixed to the back of the support frame 4. When the linkage frame 21 needs to move downward, the locking plate 23 can be pulled outward to disengage from the upper slot 22 and then locked into the lower slot 22. The spring plate 24 provides elasticity, thereby pressing and fixing the insert plate. For ease of operation, a handle 26 is also fixed to the back of the linkage frame 21. Using handle 26, users can easily move the linkage frame 21, thereby switching the functions of the control mechanism. This avoids the difficulty of moving the positioning fixture 1 used for steering knuckle machining and the time-consuming and labor-intensive manual operation, making it easy to use.

[0036] In summary, when this utility model is used, under the action of the traveling mechanism, linkage mechanism, clutch drive mechanism, control mechanism and fixing mechanism, it can electrically drive the rotation of the lead screw 2 and the overall movement of the fixture 1, avoiding the difficulty of moving the positioning fixture 1 for steering knuckle processing and the time-consuming and labor-intensive manual operation, thus giving it the advantage of being easy to use.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning fixture for machining a steering knuckle, comprising a fixture (1), wherein a lead screw (2) is installed inside the fixture (1), and a positioning plate (3) is fixedly connected to the front side of the lead screw (2), characterized in that: The traveling mechanism includes a support frame (4) fixedly connected to the back of the fixture (1). Support plates (5) are fixedly connected to the left and right sides of the bottom of the support frame (4). A round rod (6) is movably connected to the inner wall of the support plate (5) through a bearing. Rollers (7) are fixedly connected to the left and right ends of the round rod (6). A rotating rod (8) is movably connected to the inner wall of the support frame (4) through a bearing. A transmission wheel (9) is fixedly connected to the surface of the rotating rod (8) and the surface of the round rod (6). A transmission belt (10) is sleeved on the surface of the transmission wheel (9). Universal wheels (11) are fixedly connected to the left and right sides of the bottom of the fixture (1). A linkage mechanism is provided on the rear side of the fixture (1).

2. The positioning jig for machining a knuckle according to claim 1, characterized by: The linkage mechanism includes a transmission rod (12) fixedly connected to the rear end of the lead screw (2). A transmission cylinder (13) is slidably connected to the surface of the transmission rod (12). Two support blocks (14) are movably connected to the surface of the transmission cylinder (13) through bearings. The bottom of the support block (14) is fixedly connected to the top of the support frame (4). A clutch drive mechanism is provided on the rear side of the fixture (1).

3. The positioning jig for machining a knuckle according to claim 2, characterized in that: The clutch drive mechanism includes a dual-axis motor (27) fixedly connected to the inner wall of the support frame (4). The upper and lower output ends of the dual-axis motor (27) are both fixedly connected to the drive rod (15). The surface of the drive rod (15) is slidably connected to a bevel gear (16). The top of the upper bevel gear (16) is meshed with a bevel gear (17). The inner wall of the bevel gear (17) is fixedly connected to the surface of the transmission cylinder (13). The lower side of the lower bevel gear (16) is provided with a bevel gear (18). The left side of the bevel gear (18) is fixedly connected to the right side of the transmission wheel (9). The rear side of the fixture (1) is provided with a control mechanism.

4. The positioning jig for machining a knuckle according to claim 3, characterized in that: The control mechanism includes a connecting cylinder (19) fixedly connected to the inner side of bevel gear one (16). A connecting ring (20) is slidably connected to the surface of the connecting cylinder (19). A linkage frame (21) is fixedly connected to the surface of the connecting ring (20). The linkage frame (21) can drive the connecting ring (20) to move, thereby using the connecting cylinder (19) to drive bevel gear one (16) to slide downward on the surface of the driving rod (15), so that the upper bevel gear one (16) disengages from bevel gear two (17), and the lower bevel gear one (16) meshes with bevel gear three (18). A fixing mechanism is provided on the rear side of the fixture (1).

5. The positioning jig for machining a knuckle according to claim 4, characterized in that: The fixing mechanism includes slots (22) on the upper and lower sides of the back of the support frame (4). A card plate (23) is slidably connected to the inner wall of the upper slot (22). The card plate (23) is slidably connected to the inside of the linkage frame (21). A spring plate (24) is movably connected to the back of the card plate (23). A fixing plate (25) is fixedly connected to the bottom of the spring plate (24). The front of the fixing plate (25) is fixedly connected to the back of the support frame (4).

6. The positioning jig for machining a knuckle according to claim 4, characterized by: A handle (26) is fixedly connected to the back of the linkage frame (21), and the handle (26) can easily drive the linkage frame (21) to move.

Images