Clamping device for automobile part machining

Abstract

The utility model discloses a clamping device for automobile part machining, and belongs to the technical field of automobile part production. Comprising a workbench, two fixed plates arranged at the top end of the workbench, a sliding rod and a two-way screw rod which are arranged between the two fixed plates, two moving blocks arranged on the sliding rod and two threaded sections of the two-way screw rod in a sleeving mode at the same time, and arc-shaped clamping plates arranged on the two moving blocks. The motor is arranged on the fixed plate and is fixedly connected with the two-way screw rod; limiting plates are rotationally arranged on the two-way lead screw and located at the two ends of each threaded section, the limiting plates are fixedly connected with the top end of the workbench, and steel wire telescopic hoses are arranged between the movable block and the limiting plates on the two sides of the movable block respectively. The steel wire telescopic hose is coaxially arranged outside the two-way lead screw in a sleeving mode. According to the bidirectional screw rod, the four threaded sections can be shielded through the four steel wire telescopic hoses respectively, so that waste chips generated in the drilling operation are prevented from drifting to the surfaces of the threaded sections, and adverse effects on operation and precision of the bidirectional screw rod are avoided.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts manufacturing technology, and in particular to a clamping device for processing automotive parts. Background Technology

[0002] Wheel rims are common automotive parts; they are cylindrical metal components that support the tire and are centrally mounted on an axle. They are also called wheel rims, steel rims, wheels, or tire rims. After the wheel rim is formed, it needs to be drilled according to actual requirements to ensure its optimal application in the automotive assembly process.

[0003] In wheel hub drilling operations, in order to ensure the smoothness of the drilling operation, a clamping device is needed to clamp the wheel hub to avoid affecting the drilling quality or causing the drilling operation to fail due to wheel hub displacement during the drilling operation.

[0004] In the prior art, such as the patent application number CN202120381208.8, a drilling device for automobile wheel hubs is disclosed, which clamps the wheel hub by setting two arc-shaped clamping plates and a distance adjustment component. Furthermore, the distance adjustment component includes a servo motor, two connecting plates, and a bidirectional lead screw. In actual use, the surface of the bidirectional lead screw needs to be free of dust to ensure the screw's movement accuracy and normal operation. However, some debris is generated during drilling operations. This debris can drift along the sliding adjustment through-hole to the surface of the bidirectional lead screw, causing debris to adhere to the lead screw and affecting its normal operation and movement accuracy. Therefore, the above-mentioned device has certain defects in practical use. Utility Model Content

[0005] The purpose of this utility model is to provide a clamping device for processing automotive parts, which can protect the lead screw to a certain extent, effectively prevent waste chips from scattering onto the surface of the lead screw, and ensure the accuracy and normal operation of the lead screw.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A clamping device for processing automotive parts includes a worktable, two fixed plates fixedly disposed at the top of the worktable, a slide rod and a double-acting screw arranged parallel between the two fixed plates, two movable blocks sleeved on the slide rod and the two threaded sections of the double-acting screw, an arc-shaped clamping plate disposed on one side of the two movable blocks that are close to each other, and a motor disposed on one of the fixed plates and fixedly connected to one end of the double-acting screw.

[0008] A limiting plate is rotatably installed on the bidirectional lead screw at both ends of each threaded section. The limiting plate is fixedly connected to the top of the worktable. A steel wire telescopic hose is respectively installed between the moving block and the limiting plates on both sides, as well as a limiting component to prevent the steel wire telescopic hose from sagging. The steel wire telescopic hose is coaxially sleeved on the outside of the bidirectional lead screw.

[0009] Preferably, the limiting component includes a first strip block slidably disposed on the upper part of each limiting plate, a plurality of first sliders disposed along the length direction of the wire telescopic hose at the top end of the wire telescopic hose, and a first horizontal groove disposed at the bottom end of the first strip block and slidingly engaging with the first sliders.

[0010] Preferably, the upper part of the limiting plate is provided with a second horizontal sliding groove, and the first strip block is slidably connected to the second horizontal sliding groove.

[0011] Preferably, the limiting assembly further includes a second strip block slidably disposed at the bottom end of each limiting plate, a plurality of third sliders disposed at the bottom end of the wire telescopic hose along the length direction of the wire telescopic hose, and a third horizontal groove disposed at the top end of the second strip block and slidingly engaged with the third sliders.

[0012] Preferably, the lower part of the limiting plate is provided with a fourth horizontal sliding groove, and the second strip block is slidably connected to the fourth horizontal sliding groove.

[0013] Preferably, the clamping surface of the arc-shaped clamping plate is provided with a buffer layer.

[0014] Preferably, the steel wire telescopic hose is a transparent steel wire telescopic hose.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] By rotatably installing a limiting plate on the bidirectional lead screw at both ends of each threaded section and fixing the limiting plate to the top of the worktable, and by installing a steel wire telescopic hose between the moving block and the limiting plates on both sides, the four threaded sections can be shielded by the four steel wire telescopic hoses to prevent the waste chips generated during drilling from drifting onto the surface of the threaded sections and adversely affecting the operation and accuracy of the bidirectional lead screw.

[0017] Because the middle section of the steel wire telescopic hose sags under gravity after actual contraction, it may come into contact with the bidirectional lead screw, leading to friction and wear on the contact surface. This also affects the smooth expansion and contraction of the steel wire telescopic hose. Therefore, this invention effectively avoids friction between the steel wire telescopic hose and the bidirectional lead screw by incorporating a limiting component to prevent sagging, thus overcoming the aforementioned defects. Attached Figure Description

[0018] Figure 1 This is a top view of the structure in Example 1 when the steel wire telescopic hose is not installed;

[0019] Figure 2 for Figure 1 A top-view structural diagram showing the installation of a steel wire telescopic flexible hose.

[0020] Figure 3 for Figure 2 A structural schematic diagram of the telescopic flexible hose from the front view;

[0021] Figure 4 for Figure 2 A schematic diagram of the cross-sectional structure of the first and second strip blocks in the middle, viewed from the right.

[0022] Figure 5 for Figure 2 A structural schematic diagram of the middle limiting plate viewed from the right.

[0023] In the diagram: 1-Workbench, 2-Fixed plate, 5-Slide rod, 4-Double-actuated screw, 6-Moving block, 7-Arc-shaped clamping plate, 8-Motor, 9-Limiting plate, 11-Wire telescopic hose, 10-First strip block, 12-First slider, 13-First horizontal slide groove, 15-Second horizontal slide groove, 16-Second strip block, 17-Third slider, 18-Third horizontal slide groove, 20-Fourth horizontal slide groove. Detailed Implementation

[0024] Example 1

[0025] A clamping device for machining automotive parts, such as Figure 1 As shown, the device includes a worktable 1, two fixed plates 2 fixedly mounted on the top of the worktable 1, a slide rod 5 (fixed between the two fixed plates 2) and a double-acting screw 4 (rotatably mounted between the two fixed plates 2) arranged parallel to each other between the two fixed plates 2, two moving blocks 6 sleeved on the slide rod 5 and the two threaded sections of the double-acting screw 4, an arc-shaped clamping plate 7 arranged on one side of the two moving blocks 6 that are close to each other, and a motor 8 arranged on one of the fixed plates 2 and fixedly connected to one end of the double-acting screw 4.

[0026] In addition, such as Figures 2-3As shown, a limiting plate 9 is rotatably installed on the bidirectional lead screw 4 at both ends of each thread segment (i.e., the bidirectional lead screw 4 can rotate within four limiting plates 9). Each limiting plate 9 divides each thread segment into two thread segments. The limiting plates 9 are fixedly connected to the top of the worktable 1. A steel wire telescopic hose 11 (in this embodiment, the steel wire telescopic hose 11 is defined as a transparent steel wire telescopic hose 11 to facilitate observation of the internal situation, steel wire telescopic hose 11 is a prior art) and a limiting component to prevent the steel wire telescopic hose 11 from sagging; the steel wire telescopic hose 11 is coaxially sleeved on the outside of the bidirectional lead screw 4. Figure 2 and Figure 3 It can be seen that the four steel wire telescopic hoses 11 are coaxially sleeved on the outside of the four threaded sections.

[0027] Working principle: Place the wheel hub to be drilled at the top of the workbench 1 and between the two arc-shaped clamping plates 7. Then, start the motor 8. Under the action of the motor 8, the double-acting screw 4 will rotate, which will cause the two moving blocks 6 to move towards each other until the two sides of the wheel hub are clamped. Then, the drilling operation can be carried out normally.

[0028] During the movement of the two moving blocks 6 towards each other, the four steel wire telescopic hoses 11 undergo adaptive deformation (elongation or contraction). This ensures that during the movement of the moving blocks 6 towards each other or in the subsequent backward movement, the four steel wire telescopic hoses 11 can protect the four threaded sections, effectively preventing the debris generated during drilling operations from drifting onto the bidirectional screw 4.

[0029] Example 2

[0030] Based on Example 1, such as Figure 2-3 As shown, the limiting assembly includes a first strip block 10 slidably disposed on the upper part of each limiting plate 9, a plurality of first sliders 12 disposed along the length direction of the steel wire telescopic hose 11 at the top end of the steel wire telescopic hose 11, and a first horizontal groove 13 disposed at the bottom end of the first strip block 10 and slidingly engaging with the first sliders 12 (e.g., Figure 4 (As shown). Further, as... Figure 5 As shown, the upper part of the limiting plate 9 is provided with a second horizontal sliding groove 15, and the first strip block 10 and the second horizontal sliding groove 15 are slidably connected.

[0031] In practice, when the wire retractable hose 11 extends or shortens, the first slider 12 slides horizontally within the first horizontal groove 13 to achieve the extension / retraction purpose. Simultaneously, it limits the top end of the wire retractable hose 11 to the first strip block 10, preventing the upper part of the wire retractable hose 11 from sagging. Furthermore, during the extension / retraction process of the wire retractable hose 11, it causes the first strip block 10 to slide horizontally within the first horizontal groove 13 to accommodate the extension / retraction operation of the wire retractable hose 11.

[0032] To support the steel wire flexible hose 11 and reduce its vertical deformation, such as... Figure 2-3 As shown, the limiting assembly further includes a second strip block 16 slidably disposed at the bottom end of each limiting plate 9, a plurality of third sliders 17 disposed along the length direction of the steel wire telescopic hose 11 at the bottom end of the steel wire telescopic hose 11, and a third horizontal groove 18 disposed at the top end of the second strip block 16 and slidably engaged with the third sliders 17 (e.g., ...). Figure 4 (As shown). Further, as... Figure 5 As shown, the lower part of the limiting plate 9 is provided with a fourth horizontal sliding groove 20, and the second strip block 16 is slidably connected to the fourth horizontal sliding groove 20.

[0033] In practical implementation, when the wire retractable hose 11 extends or shortens, the third slider 17 also slides horizontally within the third horizontal groove 18, simultaneously limiting the bottom end of the wire retractable hose 11 to the second strip block 16. This provides support for the lower part of the wire retractable hose 11, preventing it from sagging and reducing its vertical deformation. Furthermore, during the extension and retraction of the wire retractable hose 11, the second strip block 16 also slides horizontally within the fourth horizontal groove 20 to accommodate the extension and retraction of the wire retractable hose 11.

[0034] Furthermore, the clamping surface of the arc-shaped clamping plate 7 is provided with a buffer layer to reduce wear on the wheel hub surface.

Claims

1. A clamping device for processing automotive parts, characterized in that, The device includes a worktable (1), two fixed plates (2) fixedly mounted on the top of the worktable (1), a slide rod (5) and a double-acting screw (4) parallel to each other between the two fixed plates (2), two moving blocks (6) sleeved on the slide rod (5) and the two threaded sections of the double-acting screw (4), an arc-shaped clamping plate (7) set on one side of the two moving blocks (6) close to each other, and a motor (8) set on one of the fixed plates (2) and fixedly connected to one end of the double-acting screw (4). A limiting plate (9) is rotatably provided on the bidirectional lead screw (4) at both ends of each thread segment. The limiting plate (9) is fixedly connected to the top of the workbench (1). A steel wire telescopic hose (11) is provided between the moving block (6) and the limiting plates (9) on both sides, as well as a limiting component to prevent the steel wire telescopic hose (11) from sagging. The steel wire telescopic hose (11) is coaxially sleeved on the outside of the bidirectional lead screw (4).

2. The clamping device for processing automotive parts according to claim 1, characterized in that, The limiting assembly includes a first strip block (10) slidably disposed on the upper part of each limiting plate (9), a plurality of first sliders (12) disposed along the length direction of the wire telescopic hose (11) at the top of the wire telescopic hose (11), and a first horizontal groove (13) disposed at the bottom end of the first strip block (10) and slidingly engaged with the first sliders (12).

3. The clamping device for processing automotive parts according to claim 2, characterized in that, The upper part of the limiting plate (9) is provided with a second horizontal slide groove (15), and the first strip block (10) is slidably connected to the second horizontal slide groove (15).

4. The clamping device for processing automotive parts according to claim 1, characterized in that, The limiting assembly further includes a second strip block (16) slidably disposed at the bottom end of each limiting plate (9), a plurality of third sliders (17) disposed along the length direction of the wire telescopic hose (11) at the bottom end of the wire telescopic hose (11), and a third horizontal groove (18) disposed at the top end of the second strip block (16) and slidably engaged with the third sliders (17).

5. A clamping device for processing automotive parts according to claim 4, characterized in that, The lower part of the limiting plate (9) is provided with a fourth horizontal slide groove (20), and the second strip block (16) is slidably connected to the fourth horizontal slide groove (20).

6. The clamping device for processing automotive parts according to claim 1, characterized in that, The clamping surface of the arc-shaped clamping plate (7) is provided with a buffer layer.

7. The clamping device for processing automotive parts according to claim 1, characterized in that, The steel wire telescopic hose (11) is a transparent steel wire telescopic hose (11).

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