Clamping tool for machining high-strength magnesium alloy hub casting

Abstract

The utility model relates to the technical field of hub casting clamping, in particular to a clamping tool for machining a high-strength magnesium alloy hub casting, which comprises an operating platform, clamping mechanisms are arranged on two sides of the operating platform, and an alloy hub is placed at the top of the operating platform. The clamping mechanism comprises two C-shaped movable parts, and through grooves are formed in the tops of the side walls of the two C-shaped movable parts. The multi-point clamping and fixing device has the beneficial effects that the operation platform is matched with the clamping mechanism, two C-shaped movable pieces are driven by a motor to move oppositely, a protection pad is driven to move to be attached to a hub, the hub is fixed, four connecting rods are driven to rotate, a third clamping block and a second clamping block rotate to clamp the hub, and multi-point clamping and fixing are rapidly achieved; the hub fixing device is compatible with hubs of different sizes, meanwhile, rapid fixing operation is facilitated, and therefore the working efficiency of the device is effectively improved, and the application range of the device is widened.

Description

Technical Field

[0001] This utility model relates to the field of wheel hub casting clamping, specifically a clamping fixture for processing high-strength magnesium alloy wheel hub castings. Background Technology

[0002] As a common component in automobile manufacturing, the main function of automobile wheels is to connect with the vehicle's drive components and tires to ensure the normal operation of the vehicle. In the current automobile wheel manufacturing process, in order to ensure the manufacturing efficiency of wheels, special tooling for automobile wheel production is required to provide space and auxiliary components for the casting molds and manufacturing of automobile wheels.

[0003] In recent years, with the continuous development of new axles, the number of wheel hub models used in axles has also been increasing. Many new wheel hubs are developed every year, and many old wheel hub models are no longer in production, and their tooling is no longer used. Some wheel hubs may only be one size different, but a whole set of tooling is still required. The above situations have resulted in wasted costs. Moreover, the wheel hub clamping tooling requires multiple points to be fixed during the process of fixing the wheel hub to ensure the accuracy and stability of the machining. This requirement makes the entire clamping process more complicated. Operators need to carefully adjust each clamping point to ensure that the casting does not move or deform during the machining process, thereby ensuring the quality of the final product. Utility Model Content

[0004] The purpose of this invention is to provide a clamping fixture for machining high-strength magnesium alloy wheel hub castings, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a clamping fixture for processing high-strength magnesium alloy wheel hub castings, including an operating platform, clamping mechanisms on both sides of the operating platform, and an alloy wheel hub placed on the top of the operating platform;

[0006] The clamping mechanism includes two C-shaped movable parts. Each of the two C-shaped movable parts has a through groove on the top of its side wall. The middle of the two through grooves passes through the C-shaped movable parts and has a limiting groove. The inner walls of the two limiting grooves are slidably connected to double-sided racks, and gears mesh on both sides of the two double-sided racks.

[0007] Preferably, the two double-sided racks are fixedly connected to the clamping block one at the ends away from the C-shaped movable part, and the inner walls of the two clamping blocks one are slidably connected with protective pads, and the opposite sides of the two protective pads are in contact with the alloy wheel hub.

[0008] Preferably, the four gears are divided into two groups, and each group of gears has a connecting rod fixedly connected to the opposite side, and the end of each of the four connecting rods away from the gear has a slot.

[0009] Preferably, the four slots are divided into two groups, and a single-ended connecting rod is inserted into the inner wall of each group of slots. The ends of the two single-ended connecting rods away from the slots are fixedly connected to clamping blocks three, and the opposite sides of the two clamping blocks three are in contact with the alloy wheel hub.

[0010] Preferably, the inner wall of the other set of slots is fitted with a double-headed connecting rod. The double-headed connecting rod has two ends arranged vertically on the side away from the slot. Each of the two ends is fixedly connected to a clamping block two. The distance between the two clamping blocks two is greater than the width of the clamping block three. The opposite side of the four clamping blocks two is in contact with the alloy wheel hub.

[0011] Preferably, the operating platform includes an operating platform body, inside which a bevel gear one is provided, and bevel gear two meshes with the top two sides of the bevel gear one. Threaded rods are fixedly connected to opposite sides of the two bevel gear two, and the outer wall of the threaded rods is rotatably connected to the operating platform body.

[0012] Preferably, the main body of the operating platform has sliding grooves on both sides, the inner wall of the sliding groove is slidably connected to the C-shaped movable part, the C-shaped movable part is threadedly connected to the outer wall of the threaded rod, and L-shaped baffles are fixedly connected to both sides of the main body of the operating platform, the L-shaped baffles are slidably connected to the inner wall of the second bevel gear.

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

[0014] This utility model proposes a clamping fixture for processing high-strength magnesium alloy wheel hub castings. It optimizes the design of existing clamping fixtures for wheel hub casting processing. Through the cooperation of an operating platform and a clamping mechanism, a motor drives two C-shaped movable parts to move towards each other, causing a protective pad to move and fit against the wheel hub, thus fixing the wheel hub. The four connecting rods rotate, causing clamping block three and clamping block two to rotate and clamp the wheel hub, quickly achieving multi-point clamping and fixing. While compatible with wheel hubs of different sizes, it facilitates rapid fixing operations, thereby effectively improving the working efficiency of the device and expanding its application range. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the operating platform of this utility model;

[0017] Figure 3 This is a cross-sectional view of the clamping mechanism of this utility model;

[0018] Figure 4 This is an enlarged structural diagram of point A in this utility model.

[0019] In the diagram: 1. Operating platform; 2. Clamping mechanism; 3. Alloy hub; 11. Main body of operating platform; 12. Bevel gear one; 13. Bevel gear two; 14. Threaded rod; 15. Sliding groove; 16. L-shaped baffle; 21. C-shaped moving part; 22. Through groove; 23. Limiting groove; 24. Double-sided rack; 25. Clamping block one; 26. Protective pad; 27. Gear; 28. Connecting rod; 29. ​​Slot; 210. Single-headed connecting rod; 211. Clamping block two; 212. Double-headed connecting rod; 213. Clamping block three. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Please see the appendix Figure 1-4 This application provides the following technical solutions.

[0022] A clamping fixture for machining high-strength magnesium alloy wheel hub castings includes an operating platform 1, with clamping mechanisms 2 on both sides of the operating platform 1, and an alloy wheel hub 3 placed on the top of the operating platform 1. The clamping mechanism 2 includes two C-shaped movable parts 21, each with a through groove 22 on the top of its side wall. A limiting groove 23 is formed through the middle of the two through grooves 22 and passes through the C-shaped movable parts 21. Double-sided racks 24 are slidably connected to the inner walls of the two limiting grooves 23. Gears 27 mesh on both sides of the two double-sided racks 24. The four gears 27 are divided into two groups, and a connecting rod 28 is fixedly connected to the opposite side of each group of gears 27. A slot 29 is formed at the end of each of the four connecting rods 28 away from the gears 27.

[0023] It should be noted that the alloy wheel hub 3 pushes the protective pad 26, causing the clamping block 25 to move. The clamping block 25 presses the double-sided rack 24 to slide along the limiting groove 23. At this time, the double-sided rack 24 drives the two meshing gears 27 on both sides to rotate. The two gears 27 drive the connecting rod 28 to rotate. Through the connecting rod 28, the single-headed connecting rod 210 and the double-headed connecting rod 212 inserted into the slot 29 rotate. Through the single-headed connecting rod 210 and the double-headed connecting rod 212, the clamping block 211 and the clamping block 213 rotate. The movement continues until clamping block 3 211 and clamping block 213 are in contact with the alloy hub 3. At this point, the alloy hub 3 is firmly fixed at six points. After processing is completed, the operator can start the motor to reverse, which drives the bevel gear 12 to reverse, causing the two C-shaped moving parts 21 to move in opposite directions along the inner wall of the sliding groove 15. At this time, the L-shaped baffle 16 slides on the inner wall of the limiting groove 23 and contacts the double-sided rack 24. The double-sided rack 24 is pushed outward along the inner wall of the limiting groove 23 to reset.

[0024] Two double-sided racks 24 are fixedly connected to clamping blocks 25 at their ends away from the C-shaped movable part 21. Protective pads 26 are slidably connected to the inner walls of the two clamping blocks 25. The opposite sides of the two protective pads 26 are in contact with the alloy wheel hub 3. The four slots 29 are divided into two groups. In one group, a single-headed connecting rod 210 is inserted into the inner wall of each slot 29. A clamping block 211 is fixedly connected to the end of each single-headed connecting rod 210 away from the slot 29. The opposite sides of the two clamping blocks 211 are in contact with the alloy wheel hub 3. In the other group, a double-headed connecting rod 212 is inserted into the inner wall of each slot 29. The double-headed connecting rod 212 has two vertically arranged ends on its side away from the slot 29. A clamping block 213 is fixedly connected to each end. The distance between the two clamping blocks 213 is greater than the width of the clamping block 211. The opposite sides of the four clamping blocks 213 are in contact with the alloy wheel hub 3.

[0025] It should be noted that when the contact mechanism ages after prolonged use, the operator can slide the protective pad 26 upward from the inner wall of the clamping block 25 to remove and replace it, and remove the double-headed connecting rod 212 and the single-headed connecting rod 210 from the inner wall of the slot 29 to replace them.

[0026] The operating platform 1 includes an operating platform body 11. Inside the operating platform body 11, a bevel gear 12 is provided. Both sides of the top of the bevel gear 12 are meshed with bevel gears 13. Threaded rods 14 are fixedly connected to opposite sides of the two bevel gears 13. The outer wall of the threaded rods 14 is rotatably connected to the operating platform body 11. Sliding grooves 15 are provided on both sides of the operating platform body 11. The inner wall of the sliding grooves 15 is slidably connected to a C-shaped movable part 21. The C-shaped movable part 21 is threadedly connected to the outer wall of the threaded rods 14. L-shaped baffles 16 are fixedly connected to both sides of the operating platform body 11. The L-shaped baffles 16 are slidably connected to the inner wall of the bevel gears 13.

[0027] It should be noted that the operator places the alloy wheel hub 3 on the top of the main body 11 of the operating platform, starts the motor to drive the first bevel gear 12 to rotate, the first bevel gear 12 drives the second bevel gear 13 to rotate, the second bevel gear 13 drives the threaded rod 14 to rotate, and the threaded rod 14 and the C-shaped movable part 21 make threaded movements to drive the two C-shaped movable parts 21 to slide towards each other along the inner wall of the sliding groove 15. The protective pad 26 pushes the alloy wheel hub 3 to the middle until both protective pads 26 are in contact with the alloy wheel hub 3.

[0028] In use, the operator places the alloy wheel hub 3 on top of the operating platform body 11, starts the motor to drive the bevel gear 12 to rotate, which in turn drives the bevel gear 23 to rotate, which in turn drives the threaded rod 14 to rotate. The threaded rod 14 and the C-shaped movable part 21 move in a threaded motion, causing the two C-shaped movable parts 21 to slide towards each other along the inner wall of the sliding groove 15. The protective pad 26 pushes the alloy wheel hub 3 to the middle until both protective pads 26 are in contact with the alloy wheel hub 3. At this time, the alloy wheel hub 3 pushes the protective pad 26 to move the clamping block 1 25. The clamping block 1 25 squeezes the double-sided rack 24 to slide along the limiting groove 23. At this time, the double-sided rack 24 drives the two meshing gears 27 on both sides to rotate. The two gears 27 drive the connecting rod 28 to rotate, which in turn drives the single-headed connecting rod 210 inserted into the slot 29 and the double-headed connecting rod 210 to rotate. When the connecting rod 212 rotates, it drives the clamping block 211 and clamping block 213 to rotate through the single-head connecting rod 210 and the double-head connecting rod 212 until the clamping block 211 and clamping block 213 are in contact with the alloy wheel hub 3. At this time, the alloy wheel hub 3 is fixed firmly by six points. After the processing is completed, the operator can start the motor to reverse. The motor drives the bevel gear 12 to reverse, which drives the two C-shaped moving parts 21 to move in opposite directions along the inner wall of the sliding groove 15. At this time, the L-shaped baffle 16 slides on the inner wall of the limiting groove 23 and contacts the double-sided rack 24. The double-sided rack 24 is pushed outward along the inner wall of the limiting groove 23 to reset. When the contact mechanism ages after long-term use, the operator can slide the protective pad 26 upward from the inner wall of the clamping block 25 to replace it, and remove the double-head connecting rod 212 and the single-head connecting rod 210 from the inner wall of the slot 29 to replace them.

[0029] 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 clamping fixture for processing high-strength magnesium alloy wheel hub castings, comprising an operating platform (1), clamping mechanisms (2) provided on both sides of the operating platform (1), and an alloy wheel hub (3) placed on the top of the operating platform (1); Its features are: The clamping mechanism (2) includes two C-shaped movable parts (21). The top of the side wall of each of the two C-shaped movable parts (21) is provided with a through groove (22). The middle of the two through grooves (22) passes through the C-shaped movable parts (21) and a limiting groove (23) is provided. The inner wall of the two limiting grooves (23) is slidably connected with a double-sided rack (24). Both sides of the two double-sided racks (24) are meshed with gears (27).

2. The clamping fixture for machining high-strength magnesium alloy wheel hub castings according to claim 1, characterized in that: The two double-sided racks (24) are fixedly connected to a clamping block (25) at the end away from the C-shaped movable part (21). The inner walls of the two clamping blocks (25) are slidably connected with protective pads (26). The opposite side of the two protective pads (26) is in contact with the alloy wheel hub (3).

3. The clamping fixture for machining high-strength magnesium alloy wheel hub castings according to claim 1, characterized in that: The four gears (27) are divided into two groups. Each group of gears (27) has a connecting rod (28) fixedly connected to the opposite side. The end of each of the four connecting rods (28) away from the gear (27) has a slot (29).

4. The clamping fixture for machining high-strength magnesium alloy wheel hub castings according to claim 3, characterized in that: The four slots (29) are divided into two groups. In one group, a single-ended connecting rod (210) is inserted into the inner wall of each slot (29). The two single-ended connecting rods (210) are fixedly connected to a clamping block three (211) at the end away from the slot (29). The opposite side of the two clamping blocks three (211) is in contact with the alloy wheel hub (3).

5. The clamping fixture for machining high-strength magnesium alloy wheel hub castings according to claim 4, characterized in that: The inner wall of the other set of slots (29) is fitted with double-headed connecting rods (212). The double-headed connecting rods (212) have two ends arranged vertically on the side away from the slots (29). Both ends are fixedly connected to clamping blocks (213). The distance between the two clamping blocks (213) is greater than the width of the clamping block (211). The opposite side of the four clamping blocks (213) is in contact with the alloy wheel hub (3).

6. The clamping fixture for machining high-strength magnesium alloy wheel hub castings according to claim 1, characterized in that: The operating platform (1) includes an operating platform body (11). Inside the operating platform body (11) is a bevel gear one (12). Both sides of the top of the bevel gear one (12) are meshed with bevel gear two (13). Threaded rods (14) are fixedly connected to opposite sides of the two bevel gear two (13). The outer wall of the threaded rod (14) is rotatably connected to the operating platform body (11).

7. The clamping fixture for machining high-strength magnesium alloy wheel hub castings according to claim 6, characterized in that: The main body (11) of the operating platform has sliding grooves (15) on both sides. The inner wall of the sliding groove (15) is slidably connected to the C-shaped movable part (21). The C-shaped movable part (21) is threadedly connected to the outer wall of the threaded rod (14). The main body (11) of the operating platform is fixedly connected to the two sides of the operating platform with L-shaped baffles (16). The L-shaped baffles (16) are slidably connected to the inner wall of the second bevel gear (13).

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