Self-centering clamping fixture for large-diameter spinning composite steel pipe composite equipment
By using a self-centering clamping fixture and utilizing structures such as the fixture base plate, parallel rails, clamping jaw sliders and ball screws, the problem that existing fixtures cannot adjust the center alignment is solved, and a high-precision spinning composite effect is achieved.
Patent Information
- Application Number
- CN202422972691.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-12-03
AI Technical Summary
Existing spinning composite steel pipe fixtures cannot effectively adjust the center of each steel pipe to align with the fixture, resulting in poor precision and affecting the forming effect and accuracy of the spinning composite process.
A self-centering clamping fixture is used, including a clamp base plate, parallel rails, a clamping slider, a ball screw and a cylinder-driven clamping jaw. The ball screw and cylinder-driven clamping jaws are used to achieve self-centering clamping to ensure clamping accuracy and uniformity.
It achieves the goal of eliminating the need to replace pads, offering a wide clamping range and high precision, ensuring alignment between the mold and the steel pipe during the spinning compounding process, and improving the precision and uniformity of the spinning compounding.
Smart Images
Figure CN223454974U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of composite steel pipe, especially a self-centering clamping fixture for large-diameter spinning composite steel pipe composite equipment. BACKGROUND
[0002] The existing spinning composite steel pipe clamp uses a single-side fixed and single-side operated clamp. The single-side fixed part needs to be adjusted according to the diameter (or specification) of the required composite steel pipe.
[0003] Since the diameters of the steel pipes of the same specification are inconsistent, the center of each steel pipe cannot be adjusted with the clamp, so the clamp itself has defects. Meanwhile, such a clamp has poor precision, and it is easy to cause the steel pipe clamped by the mold and the clamp to be off-center, thereby affecting the forming effect and precision in the spinning composite process. SUMMARY
[0004] The utility model relates to the field of composite steel pipe, especially a self-centering clamping fixture for large-diameter spinning composite steel pipe composite equipment.
[0005] To solve the above technical problems, the utility model discloses a self-centering clamping fixture for large-diameter spinning composite steel pipe composite equipment, which comprises a clamp base plate, wherein a parallel rail is arranged on the clamp base plate, a first clamping jaw sliding block and a second clamping jaw sliding block are arranged on the parallel rail, a first clamping jaw is connected to the first clamping jaw sliding block, a second clamping jaw is connected to the second clamping jaw sliding block, first mounting seats and second mounting seats are arranged on the two sides of the clamp base plate, a ball screw is arranged between the first mounting seat and the second mounting seat, and the first clamping jaw and the second clamping jaw are mounted at the bottom of the ball screw.
[0006] In the utility model, the upper part of the first clamping jaw is a first arc-shaped part, the inside of the first arc-shaped part is provided with a first upper pad and a first lower pad, the upper part of the second clamping jaw is a second arc-shaped part, and the inside of the second arc-shaped part is provided with a second upper pad and a second lower pad.
[0007] In the utility model, the included angle between the first upper pad and the first lower pad is 10°-80°, and the included angle between the second upper pad and the second lower pad is 10°-80°.
[0008] In the utility model, the included angle between the first upper pad and the first lower pad is 60°, and the included angle between the second upper pad and the second lower pad is 60°.
[0009] In the utility model, the ball screw is a bidirectional screw rod.
[0010] In the utility model, the first clamping jaw is driven by a first air cylinder.
[0011] The second clamping jaw is driven by the second air cylinder.
[0012] Beneficial effects: The utility model discloses reliable positioning, and the clamping size coverage is big without replacing the cushion block, and the precision is high, and the precision does not change after the self-centering clamping fixture installation debugging is in place, and the uniformity of the force of the spinning compound process mold to the bimetallic composite steel pipe is guaranteed. BRIEF DESCRIPTION OF DRAWINGS
[0013] The above and / or other aspects of the utility model will become more apparent by describing in more detail some embodiments thereof, given by way of example, with reference to the accompanying drawings.
[0014] Figure 1 It is the whole structure schematic diagram;
[0015] Figure 2 It is the front view.
[0016] In the drawing, reference numerals: 1, fixture base plate, 2, parallel rail, 3, first clamping jaw sliding block, 4, second clamping jaw sliding block, 5, first clamping jaw, 6, second clamping jaw, 7, first mounting seat, 8, second mounting seat, 9, ball screw, 10, first upper cushion block, 11, first lower cushion block, 12, second upper cushion block, 13, second lower cushion block, 14, first air cylinder, 15, second air cylinder. DETAILED DESCRIPTION
[0017] Embodiment:
[0018] As Figure 1 And Figure 2 The embodiment provides a self-centering clamping fixture for large-diameter spinning compound steel pipe compound equipment, which comprises a fixture base plate 1, a parallel rail 2 is arranged on the fixture base plate 1, a first clamping jaw sliding block 3 and a second clamping jaw sliding block 4 are arranged on the parallel rail 2, a first clamping jaw 5 is connected to the first clamping jaw sliding block 3, a second clamping jaw 6 is connected to the second clamping jaw sliding block 4, a first mounting seat 7 and a second mounting seat 8 are arranged on the two sides of the fixture base plate 1, a ball screw 9 is arranged between the first mounting seat 7 and the second mounting seat 8, and the first clamping jaw 4 and the second clamping jaw 5 are installed at the bottom of the ball screw 9. The upper portion of the first clamping jaw 5 is a first arc-shaped portion 5a, the first arc-shaped portion 5a is internally provided with a first upper cushion block 10 and a first lower cushion block 11, the upper portion of the second clamping jaw 6 is a second arc-shaped portion 6a, and the second arc-shaped portion 6a is internally provided with a second upper cushion block 12 and a second lower cushion block 13. The first clamping jaw 5 is driven by a first air cylinder 14. The second clamping jaw 6 is driven by a second air cylinder 15.
[0019] The included angle between the first upper cushion block 10 and the first lower cushion block 11 is 10°-80°, and the included angle between the second upper cushion block 12 and the second lower cushion block 13 is 10°-80°.
[0020] The included angle between the first upper pad block 10 and the first lower pad block 11 is 60° in the embodiment, and the included angle between the second upper pad block 12 and the second lower pad block 13 is 60°.
[0021] The ball screw 9 in the embodiment is a bidirectional screw.
[0022] In use, the first cylinder 14 and the second cylinder 15 respectively drive the first clamp jaw 5 and the second clamp jaw 6 to advance towards each other, to be gathered to the center line, until the steel pipe is clamped, and in the gathering process, the bidirectional screw restrains the first clamp jaw 5 and the second clamp jaw 6, to ensure that the gathering speed is consistent and the displacement is consistent.
[0023] The utility model provides a kind of self-centering clamping fixture for large-diameter spinning composite steel pipe composite equipment, and the method and approach for specifically realizing the technical scheme are many, and the above-mentioned is only preferred implementation mode of the utility model, it should be pointed out, for the ordinary skilled in the art, on the premise of not departing from the principle of the utility model, still can make several improvements and refinements, these improvements and refinements also should be regarded as the protection scope of the utility model.The components not explicitly in the embodiment can be realized by existing technology.
Claims
1. A self-centering clamping jig for a large-diameter spinning composite steel pipe composite equipment, characterized by, The utility model provides a clamp, including clamp base plate (1), be equipped with parallel rail (2) on clamp base plate (1), be equipped with first jaw slider (3) and second jaw slider (4) on parallel rail (2), be connected first jaw (5) on first jaw slider (3), be connected second jaw (6) on second jaw slider (4), the both sides of clamp base plate (1) are equipped with first mounting seat (7) and second mounting seat (8) respectively, be equipped with ball screw (9) between first mounting seat (7) and second mounting seat (8), and first jaw (5) and second jaw (6) bottom installation are on ball screw (9).
2. The self-centering clamp for a large-diameter spinning composite steel pipe composite equipment according to claim 1, characterized in that, The upper portion of the first jaw (5) is a first arc-shaped portion (5a), the inside of the first arc-shaped portion (5a) is provided with a first upper pad (10) and a first lower pad (11), the upper portion of the second jaw (6) is a second arc-shaped portion (6a), the inside of the second arc-shaped portion (6a) is provided with a second upper pad (12) and a second lower pad (13).
3. The self-aligning clamping fixture for a large-diameter spinning composite steel pipe composite equipment according to claim 2, characterized in that, The included angle between the first upper pad (10) and the first lower pad (11) is 10°-80°, and the included angle between the second upper pad (12) and the second lower pad (13) is 10°-80°.
4. The self-aligning clamping fixture for a large-diameter spinning composite steel pipe composite equipment according to claim 3, characterized in that, The included angle between the first upper pad (10) and the first lower pad (11) is 60°, and the included angle between the second upper pad (12) and the second lower pad (13) is 60°.
5. The self-aligning clamp fixture for a large-diameter spinning composite steel pipe composite equipment according to claim 1, characterized in that, The ball screw (9) is a bidirectional screw rod.
6. The self-aligning clamp fixture for a large-diameter spinning composite steel pipe composite equipment according to claim 1, characterized in that, The first jaw (5) is driven by a first air cylinder (14).
7. The self-aligning clamp fixture for a large-diameter spinning composite steel pipe composite equipment according to claim 1, characterized in that, The second jaw (6) is driven by a second air cylinder (15).