Pipe fitting thinning spinning demolding and clamping assembly

Abstract

The utility model provides a pipe fitting thinning spinning demoulding and clamping assembly which comprises a lathe bed, a spindle box and a demoulding and clamping assembly, the spindle box is fixedly arranged above the lathe bed, the output end of the spindle box is connected with a core mould used for installing a pipe fitting, and the demoulding and clamping assembly comprises a driving piece, a demoulding seat, an abutting ring and a transmission mechanism. The plurality of driving parts are fixedly arranged on the side wall of the main shaft box in a manner of being symmetrical to the core mold, a through hole for the core mold to penetrate through is formed in the center of the demolding seat, and the demolding seat is fixedly connected with an output shaft of the driving parts and is driven by the driving parts to move in the axis direction of the core mold; the structure is optimized, the abutting ring can move outwards along with the demolding base and drive the pipe fitting to move outwards to achieve demolding, the abutting ring can be driven by the transmission mechanism to rotate synchronously with the core mold in the spinning machining process, the ratchet part on the side wall of the abutting ring can increase friction force between the end wall of the pipe fitting and the abutting ring, and therefore the pipe fitting can be machined more stably. The pipe fitting is prevented from slipping in the spinning process, and the machining quality of products is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of pipe thinning spinning demoulding and clamping assembly. BACKGROUND

[0002] Pipe thinning spinning has important application in many fields, and its main movement is mainly the rotational movement of the pipe driven by the core mold. The plastic forming of the pipe relies on the axial and radial feed of the spinning wheel, and the rolling movement is implemented to complete it. The pipe after spinning will be wrapped on the core mold, but the existing technology usually realizes the demolding of the pipe and the core mold by manual, which is difficult to demold. At present, there is also a technical solution of setting a demolding device on the spinning machine, but the demolding device is independently set on the spinning machine, which has a complex structure and only has the function of demolding. Therefore, the existing technology needs to be improved and developed. SUMMARY

[0003] In view of the deficiencies in the above problems, the utility model provides a kind of pipe thinning spinning demoulding and clamping assembly.

[0004] To achieve the above purpose, the utility model provides a kind of pipe thinning spinning demoulding and clamping assembly, which comprises a bed, a main shaft box, a demolding and clamping assembly, the main shaft box is fixedly arranged on the bed, and the output end is connected with the core mold for installing the pipe. The demolding and clamping assembly comprises a driving member, a demolding seat, an abutment ring, a transmission mechanism, the driving member has a plurality of symmetric core molds fixedly arranged on the side wall of the main shaft box, the demolding seat is provided with a through hole for the core mold to pass through, the demolding seat is fixedly connected with the output shaft of the driving member and is driven by the driving member to move along the axis direction of the core mold, the abutment ring is rotatably arranged in the through hole and is driven by the transmission mechanism to rotate synchronously with the core mold during spinning processing, and the side wall of the abutment ring is provided with a ratchet part corresponding to the end wall of the pipe. When demolding, the driving member drives the demolding seat and the abutment ring to move outward, and simultaneously drives the pipe to move outward to realize demolding.

[0005] Further, the transmission mechanism comprises a driving tooth and a driven tooth, the driving tooth is arranged on the output end of the main shaft box and rotates synchronously with the output end of the main shaft box, the driven tooth is rotatably connected with the through hole through a bearing, and the abutment ring is fixedly connected with the driven tooth. The driven tooth is meshingly connected with the driving tooth in the initial state.

[0006] Further, the abutment ring is gap-fitted with the core mold, and the outer diameter of the pipe after spinning processing is greater than the minimum distance between the ratchet part and the core mold.

[0007] Further, it further comprises an electric control box, and the electric control box is electrically connected with the main shaft box and the driving member.

[0008] Further, the driving member has two and is a synchronous oil cylinder.

[0009] The utility model discloses relative to prior art's beneficial effect is: the utility model discloses the optimization structure, and the abutment ring not only can move along with the draw -out seat outward, and drive pipe fittings outward and remove the mould, and when spinning processing, can be driven by transmission mechanism and make it rotate synchronously with the core mould, and the ratchet part on the abutment ring lateral wall can increase the friction between pipe fittings end wall and abutment ring, avoid pipe fittings to slip when spinning processing, improve the processing quality of product. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is partial structural diagram of a pipe thinning spinning draw -out and clamping subassembly of the utility model,

[0011] Figure 2 It is the perspective drawing of the abutment ring of the present scheme. DETAILED DESCRIPTION

[0012] As Figure 1 , Figure 2 shown, the utility model discloses a kind of pipe thinning spinning draw -out and clamping subassembly of embodiment, including bed 2, main shaft box 3, draw -out and clamping subassembly 4, main shaft box 3 is fixedly arranged on bed 2 upper, the output end of main shaft box 3 is connected with a core mould 1, to install the pipe fittings to be processed, draw -out and clamping subassembly 4 includes driving part 5, draw -out seat 6, abutment ring 7, transmission mechanism 8, driving part 5 has multiple, and symmetric core mould 1 is fixedly arranged on the side wall of main shaft box 3, draw -out seat 6 center is provided with the through hole for core mould 1 to pass through, draw -out seat 6 is fixedly connected with the output shaft of driving part 5, and is driven along the axis direction of core mould 1 by driving part 5, abutment ring 7 is rotatably arranged in through hole, and is driven to rotate synchronously with core mould 1 by transmission mechanism 8 when spinning processing, ratchet part 71 is provided on the lateral wall of abutment ring 7 corresponding pipe fittings end wall, driving part 5 drives draw -out seat 6 and abutment ring 7 to move outward when demoulding, and simultaneously drive pipe fittings to move outward and realize demoulding;Wherein, abutment ring 7 not only can move along with draw -out seat 6 outward, and drive pipe fittings outward and remove the mould, and when spinning processing, can be driven by transmission mechanism 8 and make it rotate synchronously with core mould 1, the ratchet part 71 on the lateral wall of abutment ring 7 can increase the friction between pipe fittings end wall and abutment ring 7, avoid pipe fittings to slip when spinning processing, improve the processing quality of product.

[0013] Further, as Figure 1 , Figure 2As shown, the transmission mechanism 8 in the embodiment comprises a driving gear 9 and a driven gear 10, the driving gear 9 is arranged on the output end of the main shaft box 3 and rotates synchronously with the output end of the main shaft box 3, the driven gear 10 is rotatably connected with the through hole through a bearing, the abutment ring 7 is fixedly connected with the driven gear 10, the driven gear 10 is in meshing connection with the driving gear 9 in the initial state, and the abutment ring 7 rotates synchronously with the driven gear 10 and the driving gear 9 during spinning processing; at the same time, the abutment ring 7 is in clearance fit with the core die 1, and the outer diameter of the pipe after spinning processing is greater than the minimum distance between the ratchet tooth part 71 and the core die 1, and the ratchet tooth part 71 can increase the friction between the end wall of the pipe and the abutment ring 7 during the whole spinning processing.

[0014] Further, as shown in the drawings, Figure 1 The embodiment further comprises an electric control box 11, the electric control box 11 is electrically connected with the main shaft box 3 and the driving member 5, the driving member 5 in the embodiment is two and is selected as a synchronous oil cylinder, and the structure is simple and the performance is good.

[0015] The above only describes preferred embodiments of the utility model and is not used for limiting the utility model, for the person skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A tube thinning and spinning stripper and chucking assembly, characterized by: The utility model relates to a pipe spinning machine, including bed (2), main shaft box (3), demoulding and clamping assembly (4), the main shaft box (3) is fixed in bed (2) top, and the output end is connected with the core mould (1) for installing pipe fittings, demoulding and clamping assembly (4) include driving part (5), demoulding seat (6), abutment ring (7), transmission mechanism (8), the driving part (5) has multiple, and symmetric core mould (1) is fixed on the side wall of main shaft box (3), the demoulding seat (6) center is equipped with the through hole for the core mould (1) passes through, the demoulding seat (6) is solidly connected with the output shaft of driving part (5) and is driven by driving part (5) and moves along the axis direction of core mould (1), the abutment ring (7) rotationally is equipped in the through hole, and is driven by transmission mechanism (8) and rotates synchronously with core mould (1) when spinning, and the side wall of abutment ring (7) is equipped with ratchet part (71) corresponding pipe fittings end wall, when demoulding, driving part (5) drives demoulding seat (6) and abutment ring (7) to move outward, and simultaneously drive pipe fittings to move outward and realize demoulding.

2. A tube wall thinning and spinning stripper and chucking assembly as defined in claim 1 wherein: The transmission mechanism (8) includes driving tooth (9) and driven tooth (10), the driving tooth (9) is located on the output end of main shaft box (3) and rotates synchronously with the output end of main shaft box (3), the driven tooth (10) is rotatably connected with the through hole through bearing, the abutment ring (7) is solidly connected with the driven tooth (10), and the driven tooth (10) is meshedly connected with the driving tooth (9) in the initial state.

3. A tube wall thinning and spinning stripper and chucking assembly according to claim 1 or 2, characterized in that: The abutment ring (7) is in clearance fit with the core mould (1), and the outer diameter of the pipe after spinning is greater than the minimum distance between the ratchet part (71) and the core mould (1).

4. A tube wall thinning and spinning stripper and chucking assembly as defined in claim 1 wherein: Further comprising electric control box (11), the electric control box (11) is electrically connected with main shaft box (3) and driving part (5).

5. A tube wall thinning and spinning stripper and chucking assembly as defined in claim 1 or 4 wherein: The driving part (5) has two and is synchronous oil cylinder.

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