Golf club clamping mechanism, clamping device and step section forming machine

Abstract

The utility model discloses a golf club clamping mechanism, a clamping device and a step section forming machine, the clamping mechanism comprises a control part, a mandrel, a movable part, a fixed part and a clamping piece, the movable part comprises a movable cavity and a supporting piece, the movable cavity can be axially and movably installed in the fixed part, and the supporting piece penetrates out of a movable groove formed in the side wall of the fixed part. The mandrel is provided with a mandrel head and a mandrel tail, the mandrel head is fixed to the top end of the fixing part, the mandrel tail penetrates into the movable cavity from the top end of the fixing part and penetrates out of the bottom end of the fixing part, and a gap is formed between the mandrel tail and the fixing part. The control part comprises a rotating cavity, a chute is formed in the side wall of the rotating cavity, the depth of the chute is gradually increased from one end to the other end, the rotating cavity is movably connected to the top of the fixing part and can circumferentially rotate relative to the fixing part, and the chute makes contact with the supporting piece. A first inclined wall is arranged on the inner side of the bottom of the fixing part, the distance between the first inclined wall and the mandrel is gradually reduced in the direction from the mandrel head to the mandrel tail, and the clamping piece is embedded in the wall of the bottom of the movable cavity in a radial moving mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of mechanical processing field, specifically, a kind of clamping mechanism of golf club, clamping device and ladder section forming machine. BACKGROUND

[0002] Golf club is composed of shaft, head and grip. The current golf club shaft is mostly round tube, such design makes the bending resistance and torsion resistance of shaft are poor, to solve the above problems, ladder section can be processed on the shaft to strengthen the strength and rigidity of shaft, so as to improve the bending resistance and torsion resistance of shaft.

[0003] In order to facilitate the processing of ladder section on the shaft, clamping assembly needs to be used to clamp the shaft, and then the shaft is sent into the forming device for processing of ladder section. The clamping assembly for clamping the shaft on the market is mostly fixed by bolt, which is troublesome and inefficient, and increases the labor intensity of workers. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model provides a kind of clamping mechanism of golf club, clamping equipment and ladder section forming machine.

[0005] One object of the utility model is to provide a kind of clamping mechanism of golf club, including: control part, mandrel, movable part, fixed part and clamping piece, movable part includes movable cavity and support, movable cavity is installed in fixed part with axial movement, the side wall of fixed part is equipped with the moving groove that can be moved along the axial direction of support, support is worn out moving groove. Mandrel has mandrel head and mandrel tail, mandrel head is fixed with the top end of fixed part, mandrel tail is worn into movable cavity from the top end of fixed part, and is worn out from the bottom end of fixed part, and there is gap between mandrel tail and movable cavity and fixed part. Control part includes rotary cavity, the side wall of rotary cavity is equipped with inclined slot, the depth of inclined slot gradually increases from one end to the other end, rotary cavity is movably connected on the top of fixed part and can rotate around fixed part, inclined slot is in contact with support, and mandrel head is also worn out rotary cavity. The inner side of the bottom of fixed part is equipped with first inclined wall, along the direction from mandrel head to mandrel tail, the distance between first inclined wall and mandrel gradually decreases, and clamping piece is embedded on the wall of the bottom of movable cavity with radial movement.

[0006] Preferably, the clamping piece is a ball bearing.

[0007] Preferably, the control part further includes a rotating rod, which is fixed to the rotary cavity.

[0008] Preferably, the bottom of the movable part is provided with a second inclined wall, along the direction from the mandrel head to the mandrel tail, the distance between the second inclined wall and the mandrel gradually decreases, the inclination angle of the second inclined wall is less than or equal to the inclination angle of the first inclined wall, and a clamping hole is formed in the second inclined wall, and the clamping piece is placed in the clamping hole.

[0009] Preferably, the fixed part further comprises a fixed cavity and a base, the movable part is arranged in the fixed cavity, the base is installed at the bottom of the fixed cavity, the first inclined surface is arranged on the base, and a moving groove is arranged on the fixed cavity.

[0010] Preferably, the support is threadedly connected with the movable cavity.

[0011] Another object of the utility model is a clamping device of golf club, which comprises a fixed seat and a plurality of clamping mechanisms as described above, and the mandrel head is fixed to the fixed seat.

[0012] Still another object of the utility model is to provide a ladder section forming machine, which comprises a rack, a clamping device, a ladder forming mechanism, a first driving device and a second driving device, the clamping device is installed on the rack, the ladder forming mechanism is movably installed on the rack, the first driving device is installed on the rack and connected with the ladder forming mechanism, the first driving device drives the ladder forming mechanism to move along the height direction of the rack, the second driving device is installed on the rack and connected with the clamping device, and the second driving device drives the clamping device to rotate in the circumferential direction.

[0013] Preferably, the first driving device is an oil cylinder.

[0014] Preferably, the second driving device comprises a motor, a worm and a worm wheel, the motor is connected with the worm, the worm is engaged with the worm wheel, and the worm wheel is connected with the fixed seat.

[0015] The clamping mechanism of the golf club has the advantages that: the inclined groove drives the support to drive the clamping part to move away from the rotating cavity by rotating the rotating cavity, the distance between the first inclined wall and the mandrel gradually decreases along the direction from the mandrel head to the mandrel tail, the clamping part is extruded by the first inclined wall in the radial direction of the mandrel during the movement away from the rotating cavity, and thus the clamping part tightly abuts the workpiece on the mandrel tail. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, and are used to explain the present application and do not constitute improper limitation on the present application. In the drawings:

[0017] Figure 1 It is a schematic view of the clamping mechanism of the golf club in embodiment one;

[0018] Figure 2Another schematic view of the clamping mechanism of the golf club in Example 1;

[0019] Figure 3 An exploded view of the clamping mechanism of the golf club in Example 1;

[0020] Figure 4 A sectional view of the clamping mechanism of the golf club in Example 1;

[0021] Figure 5 A sectional view of the clamping mechanism of the golf club in Example 1 in use;

[0022] Figure 6 A schematic view of the clamping device of the golf club in Example 2;

[0023] Figure 7 A schematic view of the step forming device of the golf club in Example 3.

[0024] BRIEF DESCRIPTION OF DRAWINGS

[0025] 1. clamping mechanism; 11. control part; 111. rotating cavity; 1111. inclined slot; 112. rotating rod; 12. mandrel; 121. mandrel head; 122. mandrel tail; 13. movable part; 131. movable cavity; 132. support; 133. second inclined wall; 1331. clamping hole; 14. fixed part; 141. moving slot; 142. first inclined wall; 143. fixed cavity; 144. base; 15. clamping member; 16. gap; 2. fixed seat;

[0026] 100. frame; 200. clamping device; 300. step forming device; 400. first driving device; 500. second driving device; 501. motor; 502. worm; 503. worm gear; 600. workpiece. DETAILED DESCRIPTION

[0027] Several embodiments of the present application will be described hereinafter with reference to the drawings. Many specific details are set forth in the following description apart from a clear understanding of the application. It should be understood, however, that the application can be practiced without many of the specific details set forth herein, that the present application is using only the best modes and / or

[0028] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and does not mean to particularly indicate the order or sequence, nor to limit the present application, but only to distinguish the components or operations described by the same technical terms, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implying the number of the indicated technical features. Therefore, the features limited by "first" and "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor in the protection scope required by the present application.

[0029] Embodiment one

[0030] Please refer to Figures 1 to 4 , Figure 1 is a schematic view of the clamping mechanism of the golf club in embodiment one, Figure 2 is another schematic view of the clamping mechanism of the golf club in embodiment one, Figure 3 is an exploded view of the clamping mechanism of the golf club in embodiment one, Figure 4 is a sectional view of the clamping mechanism of the golf club in embodiment one. The present embodiment discloses a clamping mechanism of a golf club, which comprises a control part 11, a mandrel 12, a movable part 13, a fixed part 14 and a clamping part 15. The movable part 13 comprises a movable cavity 131 and a supporting part 132. The movable cavity 131 is movably installed in the fixed part 14 and can move axially relative to the fixed part 14. A moving groove 141 is formed in the side wall of the fixed part 14. The supporting part 132 penetrates the moving groove 141 and can move axially in the moving groove 141. The mandrel 12 has a mandrel head 121 and a mandrel tail 122. The mandrel head 121 is fixed to the top end of the fixed part 14. The mandrel tail 122 penetrates the movable cavity 131 from the top end of the fixed part 14 and penetrates out from the bottom of the fixed part 14. There is a gap 16 between the mandrel tail 122 and the movable cavity 131, and there is also a gap 16 between the mandrel tail 122 and the fixed part 14. The control part 11 comprises a rotating cavity 111, which is movably connected to the top end of the fixed part 14 and can rotate circumferentially relative to the fixed part 14. A bevel groove 1111 is formed in the side wall of the rotating cavity 111. The depth of the bevel groove 1111 gradually increases from one end to the other end. The bevel groove 1111 is in contact with the supporting part 132. The mandrel head 121 also penetrates the rotating cavity 111. A first bevel wall 142 is formed in the inner side of the bottom of the fixed part 14. In the direction from the mandrel head 121 to the mandrel tail 122, the distance between the first bevel wall 142 and the mandrel 12 gradually decreases. The clamping part 15 is embedded in the wall at the bottom of the movable cavity 131 and can move in the radial direction, i.e. perpendicular to the mandrel 12.

[0031] In practical application, please refer toFigure 5 , Figure 5 Figure 6 is a sectional view of the clamping mechanism of the golf club in Example 1 in use. The workpiece 600 is inserted into the gap 16 between the mandrel tail 122 and the base 144, and the workpiece 600 is continuously inserted until the workpiece 600 finally enters the gap 16 between the mandrel tail 122 and the movable cavity 131, so that the workpiece 600 can be sleeved on the mandrel tail 122. The rotating cavity 111 of the rotation control part 11 is operated to drive the inclined groove 1111 of the rotating cavity 111 to move the supporting part 132 and the clamping part 15 away from the rotating cavity 111. Since the distance between the first inclined wall 142 and the mandrel 12 gradually decreases along the direction from the mandrel head 121 to the mandrel tail 122, the clamping part 15 is pressed by the first inclined wall 142 in the radial direction of the mandrel 22 during the movement away from the rotating cavity 111, so that the clamping part 15 tightly presses the workpiece 600 sleeved on the outer periphery of the mandrel tail 122. When the workpiece 600 is to be removed, the supporting part 132 is driven to move the clamping part 15 away from the mandrel tail 122 by rotating the rotating cavity 111, so that the clamping part 15 is no longer pressed by the first inclined wall 142 in the radial direction of the mandrel 12 and is in a relaxed state, and then the workpiece 600 sleeved on the mandrel tail 122 is removed. The design is simple in structure, easy to assemble, and simple to operate. The clamping part 15 can be tightly pressed or released by rotating the rotating cavity 111, so that the workpiece 600 can be quickly disassembled and assembled, which is simple and convenient to use, improves production efficiency, and reduces labor intensity. In this embodiment, the workpiece 600 is the shaft of a golf club.

[0032] When there is only one inclined groove 1111, the supporting part 132 is also provided with one, and the movement groove 141 for the axial movement of the supporting part 132 is also one. When there are two inclined grooves 1111, the supporting part 132 is also provided with two, and the movement groove 141 for the axial movement of the supporting part 132 is also provided with two corresponding to the number of the supporting part 132. One supporting part 132 is in contact with one inclined groove 1111, and one supporting part 132 passes through one movement groove 141, so that the inclined groove 1111 can drive the supporting part 132 to move axially in the movement groove 141. The specific number of the inclined groove 1111 and the supporting part 132 is set according to actual needs.

[0033] In this example, two inclined grooves 1111 and two supporting parts 132 are provided, and correspondingly, two movement grooves 141 for the axial movement of the supporting part 132 are also provided, and the distribution positions are symmetrically distributed, so that the two inclined grooves 1111 can simultaneously drive the supporting rod 132 and the force acting on it is uniform, which can more easily drive the supporting part 132 to move axially in the movement groove 141.

[0034] Specifically, in the embodiment, the clamping parts 15 are balls, which have the advantages of bearing load, reducing friction, and improving transmission efficiency, and can be made of stainless steel, high chromium steel, tungsten carbide, ceramic, or the like.

[0035] Review Figure 1 As shown, further, in the embodiment, the control part 11 further includes a rotating rod 112 fixedly installed on the rotating cavity 111. Specifically, one end of the rotating rod 112 is fixed on the rotating cavity 111 through threaded connection, which is simple and convenient to assemble, and can also be fixed through buckles, screws, or the like. The rotating rod 112 is rotated to drive the rotating cavity 111 to rotate relative to the fixed part 14, which is simple and labor-saving to operate.

[0036] In actual work, the rotating cavity 111 is rotated by holding the rotating rod 112, so that the inclined groove 1111 presses the supporting part 132 and forces the supporting part 132 to move towards the direction of the mandrel tail 122, thereby driving the clamping part 15 to move away from the rotating cavity 111, and at the same time, the clamping part 15 is subjected to the action force of the first inclined wall 142 of the fixed part 14 towards perpendicular to the mandrel tail 122, so as to achieve the clamping part 15 extruding and clamping the workpiece 600 sleeved on the outer periphery of the mandrel tail 122. If it is necessary to disassemble the workpiece 600 sleeved on the outer periphery of the mandrel tail 122, the rotating rod 112 is only needed to be rotated in the other direction. This operation is simple and easy to use, and the manufacturing cost is low.

[0037] Further, in the embodiment, the movable part 13 includes a second inclined wall 133 provided on the bottom, which gradually decreases in distance from the mandrel head 121 to the mandrel tail 122, and the inclination angle of the second inclined wall 133 is less than or equal to the inclination angle of the first inclined wall 142. The second inclined wall 133 is provided with a clamping hole 1331, and one clamping part 15 is placed in each clamping hole 1331. The clamping part 15 can move radially in the clamping hole 1331.

[0038] Specifically, the number of clamping holes 1331 can be one, two, or more, and the specific number is set according to actual needs, and one clamping part 15 is placed in each clamping hole 1331. In this way, when the workpiece 600 needs to be clamped, multiple clamping parts 15 can simultaneously abut against the workpiece 600 sleeved on the outer periphery of the mandrel tail 122, i.e., the clamping force of the workpiece 600 is increased.

[0039] Further, review Figure 3 and Figure 4As shown, in this embodiment, the fixed part 14 further comprises a fixed cavity 143 and a base 144, the fixed cavity 143 is provided with a moving groove 141, the inside of the fixed cavity 143 is hollow and can be sleeved on the outer periphery of the movable part 13, that is, the movable part 13 is placed in the fixed cavity 143, and the supporting piece 132 extends out through the moving groove 141. The base 144 is installed below the fixed cavity 143, and the mandrel tail 122 can pass out of the base 144, and the first inclined wall 142 is arranged on the base 144. Specifically, the base 144 can be buckled on the fixed cavity 143, or can be screwed on the fixed cavity 143, so that assembly and disassembly are very simple and convenient.

[0040] Further, in this embodiment, the supporting piece 132 and the movable cavity 131 are fixed by threaded connection, which is simple to assemble and convenient to disassemble, and can also be assembled and fixed by buckle connection and welding.

[0041] In actual application, one hand inserts the workpiece 600 into the gap 16 between the mandrel tail 122 and the base 144 first, continues to insert the workpiece 600, and finally makes the workpiece 600 enter the gap 16 between the mandrel tail 122 and the movable cavity 131, so that the workpiece 600 can be sleeved on the outer periphery of the mandrel tail 122. One hand holds the rotating rod 112 to rotate, so that the inclined groove 1111 on the rotating cavity 111 rotates, the supporting piece 132 is pressed to move towards the mandrel tail 122, and then drives the clamping piece 15 to move away from the rotating cavity 111. Because the distance between the first inclined wall 142 and the mandrel 12 gradually decreases along the direction from the mandrel head 121 to the mandrel tail 122, the clamping piece 15 is pressed by the first inclined wall 142 towards the mandrel tail 122 during the movement away from the rotating cavity 111, so that the clamping piece 15 moves radially in the clamping hole 1331. The clamping piece 15 will press and clamp the workpiece 600 sleeved on the outer periphery of the mandrel tail 122 during the movement. When the workpiece 600 needs to be removed after processing, the rotating rod 112 is only reversed to move the supporting piece 132 away from the mandrel tail 122, that is, to drive the clamping piece 15 to move away from the mandrel tail 122, so that the clamping piece 15 will not press the workpiece 600 sleeved on the outer periphery of the mandrel tail 122, and the workpiece 600 can be removed. This design is simple in structure, convenient to assemble, and easy to use and operate. The clamping piece 15 is pressed and clamped or loosened by rotating the rotating rod 112, so that the workpiece 600 can be quickly disassembled and assembled, which is simple and convenient to use, improves production efficiency, and reduces labor intensity of workers.

[0042] Embodiment two

[0043] Please refer to Figure 6 As shown, Figure 6Figure 1 is a schematic view of a golf club clamping device. The embodiment also discloses a golf club clamping device, which comprises a plurality of clamping mechanisms 1 and a fixed seat 2, and the plurality of clamping mechanisms 2 are fixed on the fixed seat 2, i.e. the shaft head 121 is fixed on the fixed seat 2.

[0044] Specifically, the fixed seat 2 is a common rotating disc, and the clamping mechanisms 1 are distributed on the fixed seat 2 at a circumferential interval. The number of clamping mechanisms 1 can be one, two or more, and the specific number is arranged according to actual needs. The fixed seat 2 is a rotating disc, which is convenient for rotating operation and occupies the smallest area when the same number of clamping mechanisms 1 are installed.

[0045] In actual application, a plurality of clamping mechanisms 1 are distributed on the fixed seat 2 at a circumferential interval. Increasing the number of clamping mechanisms 1 can clamp a plurality of workpieces 600 at the same time, which can improve the clamping efficiency and the production efficiency.

[0046] Embodiment three

[0047] Please refer to Figure 7 , Figure 7 Figure 2 is a schematic view of a golf club step forming machine. The embodiment discloses a step forming machine, which comprises a rack 100, a clamping device 200 as described in embodiment two, a step forming device 300, a first driving device 400 and a second driving device 500. The clamping device 200 is the golf club clamping device described above, and the clamping device 200 is fixedly installed on the rack 100. The step forming device 300 is movably installed on the rack 100. The first driving device 400 is installed on the rack 100 and connected with the step forming device 300. The first driving device 400 is used to drive the step forming device 300 to move along the height direction of the rack 100. The second driving device 500 is installed on the rack 100 and connected with the clamping device 200, and is used to drive the clamping device 200 to rotate circumferentially.

[0048] Further, in the embodiment, the first driving device 400 is an oil cylinder driving device. Specifically, the first driving device 400 can drive the step forming device 300 to reciprocate along the axial direction of the rack 100. The step forming device 300 is driven by the first driving device 400 to move towards the clamping device 200, so as to press the workpiece 600 clamped on the clamping device 200. In addition, the first driving device 400 can also be made of a pneumatic cylinder driving device, which is simple to control and adjust, and easy to realize remote control and automation.

[0049] Further, in the embodiment, the second driving device 500 comprises a motor 501, a worm 502 and a worm wheel 503, the motor 501 is connected with the worm 502, the worm 502 is engaged with the worm wheel 503, and the worm wheel 503 is connected with the fixed base 2. Specifically, the second driving device 500 is installed on the frame 100 and located above the clamping device 200, the worm wheel 503 is connected with the clamping device 200, i.e. the worm wheel 503 is connected with the fixed base 2. When the motor 501 is started, the driving worm 502 drives the worm wheel 503 to rotate, and then drives the clamping device 200 connected with the worm wheel 503 to rotate, so as to move the workpiece 600 clamped by the clamping mechanism 1 to the designated position, i.e. to transport the workpiece 600 clamped by the clamping mechanism 1 on the clamping device 200 to the corresponding work station of the stepped forming equipment 300, so as to process different positions of the workpiece 600 and form the workpiece 600 with the required stepped shape.

[0050] In actual application, the workpiece 600 is inserted from the gap between the mandrel tail 122 and the base 144 until the workpiece 600 enters the gap 16 between the mandrel tail 122 and the movable cavity 131, so that the workpiece 600 can be sleeved on the outer periphery of the mandrel tail 122, and the rotating rod 112 is operated to clamp the workpiece 600, which is simple and convenient. The plurality of clamping mechanisms 1 on the clamping device 200 can clamp a plurality of workpieces 600 at the same time, which can improve the clamping efficiency, i.e. improve the production efficiency. The second driving device 500 drives the clamping device 200 to rotate circumferentially, so that the workpiece 600 clamped by the clamping mechanism 1 is rotated to the processing position of the corresponding stepped forming device 300, the first driving device 400 drives the stepped forming device 300 to move towards the clamping device 200, and then extrudes the workpiece 600 clamped on the clamping device 200. By repeating the above steps, the workpiece 600 is formed into a stepped shape by extruding at different positions of the stepped forming device 300 for several times, and the specific number of times is set according to the actual situation. The stepped forming machine is reasonable in design, simple in operation, and can quickly process the stepped sections on the shaft of the golf club, which can improve the processing efficiency.

[0051] The above merely describes the embodiments of the present application and is not intended to limit the present application. The present application can be variously changed and modified by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. A clamping mechanism for a golf club, characterized by, The utility model provides a kind of control part (11), mandrel (12), movable part (13), fixed part (14) and detent (15);The movable part (13) includes movable cavity (131) and support (132), the movable cavity (131) is installed in the fixed part (14) with axial movement;The side wall of the fixed part (14) is provided with the moving groove (141) that the support (132) can move along axial direction, the support (132) passes out the moving groove (141);The mandrel (12) has mandrel head (121) and mandrel tail (122), the mandrel head (121) is fixed with the top of the fixed part (14), the mandrel tail (122) is from the top of the fixed part (14) and passes into the movable cavity (131), and from the bottom of the fixed part (14) passes out, and the mandrel tail (122) with the movable cavity (131) and the fixed part (14) between there is gap (16);The control part (11) includes rotary cavity (111), and the side wall of the rotary cavity (111) is provided with inclined slot (1111), and the depth of the inclined slot (1111) gradually increases from one end to the other end;The rotary cavity (111) is movably connected in the top of the fixed part (14) and can rotate circumferentially relative to the fixed part (14), and the inclined slot (1111) is in contact with the support (132);The mandrel head (121) also passes out the rotary cavity (111);The bottom of the fixed part (14) is provided with first inclined wall (142) inside, and along the direction from the mandrel head (121) to the mandrel tail (122), the distance between the first inclined wall (142) and the mandrel (12) gradually decreases, and the detent (15) is embedded on the wall of the bottom of the movable cavity (131) with radial movement. The detent (15) is a ball.

2. The clamping mechanism for a golf club of claim 1, wherein, The control part (11) further includes rotating rod (112), and the rotating rod (112) is fixed on the rotary cavity (111).

3. The clamping mechanism for a golf club of claim 1, wherein, The bottom of the movable part (13) is provided with second inclined wall (133), and along the direction from the mandrel head (121) to the mandrel tail (122), the distance between the second inclined wall (133) and the mandrel (12) gradually decreases;The inclination angle of the second inclined wall (133) is less than or equal to the inclination angle of the first inclined wall (142), and the detent (15) is placed in the detent hole (1331) in the second inclined wall (133).

4. The clamping mechanism for a golf club of claim 1, wherein, The fixed part (14) further includes fixed cavity (143) and base (144), the movable part (13) is placed in the fixed cavity (143), the base (144) is installed at the bottom of the fixed cavity (143), the first inclined wall (142) is arranged on the base (144), and the moving groove (141) is arranged on the fixed cavity (143).

5. The clamping mechanism for a golf club of claim 1, wherein, The support (132) is threadedly connected with the movable cavity (131).

6. The clamping mechanism for a golf club of claim 3, wherein, ​ 7. A clamping device for a golf club, characterized by The device comprises a fixed seat (2) and a plurality of clamping mechanisms (1) according to any one of claims 1-6, wherein the mandrel head (121) is fixed to the fixed seat (2).

8. A step joint forming machine characterized by comprising: The device comprises: a rack (100), a clamping device (200), a step forming device (300), a first driving device (400) and a second driving device (500), wherein the clamping device (200) is installed on the rack (100), the step forming device (300) is movably installed on the rack (100), the first driving device (400) is installed on the rack (100) and connected with the step forming device (300), the first driving device (400) drives the step forming device (300) to move along the height direction of the rack (100), the second driving device (500) is installed on the rack (100) and connected with the clamping device (200), and the second driving device (500) drives the clamping device (200) to rotate in the circumferential direction.

9. The stair-step former of claim 8, wherein, The first driving device (400) is an oil cylinder.

10. The step joint former of claim 8, wherein, The second driving device (500) comprises a motor (501), a worm (502) and a worm gear (503), the motor (501) is connected with the worm (502), the worm (502) is engaged with the worm gear (503), and the worm gear (503) is connected with the fixed seat (2).

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