A cold heading machine

Abstract

The present invention provides a cold heading forming machine, which relates to the technical field of cold heading machines, including a machine base, a support base is fixedly connected to one side of the upper surface of the machine base, a hydraulic push rod is installed on the upper surface of the support base, a cold heading table is fixedly installed at the output end of the hydraulic push rod, a cold heading movable die is arranged at the bottom of the cold heading table, a cold heading clamping die matched with the cold heading movable die is fixedly connected to the middle of the upper surface of the machine base, and the cold heading movable die is inserted in the cold heading clamping die to perform cold heading forming on the workpiece. The present invention can enter the smooth lifting surface from the expansion surface, the opening and closing surface, and the contraction surface through the arrangement of the delivery component and the slide rail component when the guide wheel contacts the guide slide. In the process, the clamping arm enters the open state from the balanced state and then enters the balanced state and then reaches the clamping state in the smooth lifting surface, so that the workpiece can be driven to rise straightly, and the entire delivery component can complete automatic opening and closing only through its own mechanical coordination, which reduces the control load and control cost compared with the traditional manipulator.

Description

Technical Field

[0001] The invention relates to the technical field of cold heading machines, in particular to a cold heading forming machine. Background Art

[0002] Cold heading machine is a special equipment mainly used for batch production of fasteners such as nuts and bolts. Usually, the cylindrical blank is formed into the shape of nuts or other parts through the action of opening and closing the mold.

[0003] Since the parts processed by the cold heading machine do not need to be heated, they will deform quickly when forming the shape. During the production process, some fasteners need to undergo multiple cold heading processes before they can be finally finalized. Therefore, a robot is needed to transport the workpiece from the previous station to the next station. However, traditional robots need to use multiple controllers when in use, and power supply cables and communication cables must also be designed. Although such robots can achieve the effect of transfer and transportation, the control line part that follows is also very complicated, and it also increases the cost and load burden of the entire equipment. Therefore, we have made improvements to this and proposed a cold heading forming machine. Summary of the invention

[0004] The object of the present invention is to provide a cold heading forming machine which can realize the full mechanical structure of the conveying component during the cold heading process, so as to achieve the purpose of automatically opening and closing the clamping workpiece for conveying.

[0005] In order to achieve the above-mentioned invention object, the present invention provides a cold heading forming machine, including a machine base, a support base is fixedly connected to one side of the upper surface of the machine base, a hydraulic push rod is installed on the upper surface of the support base, a cold heading table is fixedly installed at the output end of the hydraulic push rod, a cold heading movable die is arranged at the bottom of the cold heading table, a cold heading clamping die matched with the cold heading movable die is fixedly connected to the middle of the upper surface of the machine base, the cold heading movable die is inserted in the cold heading clamping die to perform cold heading forming on the workpiece, and also includes:

[0006] The transmission component comprises a transmission bracket, wherein one side wall of the transmission bracket is fixedly connected to a plurality of extension arms, and the two side walls of the extension arm respectively extend outward to form a first hinge part and a second hinge part, and the side wall of the first hinge part is rotatably connected to a connecting rod by a rotating shaft, and one end of the connecting rod is rotatably connected to a control arm by a rotating shaft, and one end of the control arm is rotatably connected to a clamping arm by a rotating shaft, and the clamping arm is detachably connected to an end away from the control arm with a finger clamp, and the clamping arm is rotatably connected to the second hinge part, and the end of the control arm away from the clamping arm is rotatably connected to a guide wheel by a supporting shaft, and a return spring is also fixedly connected between the middle part of the side wall of the control arm and the extension arm, and a sliding rail component is also fixedly connected to a side of the upper surface of the machine base close to the cold heading die, and the sliding rail component forms a sliding fit when in contact with the guide wheel, and the control arm and the clamping arm can be directly driven by the movement of the guide wheel to automatically adjust, so that the corresponding movement mode of the components can achieve the purpose of automatic opening and closing;

[0007] Wherein, when the reset spring is in a free telescopic state, the two clamping arms are in a balanced state; when the reset spring is in an extended state, the two clamping arms are in a relatively expanded state; when the reset spring is in a contracted state, the two clamping arms are in a tightened clamping state;

[0008] The walking component is connected to a side wall of the machine base and is used to control the delivery component to move along the X-axis, the Y-axis and the Z-axis.

[0009] As a preferred technical solution of the present invention, the side wall of the support seat is also fixedly connected with a vertical slide rail, and the cold heading table is fixedly connected with a vertical slide on the opposite side of the support seat. The cold heading table is slidably connected to the side wall of the vertical slide rail through the vertical slide. Through the setting of the vertical slide rail, the cold heading table can achieve self-balancing through the vertical slide when moving up and down, thereby maintaining good stability.

[0010] As a preferred technical solution of the present invention, a guide rod is fixedly connected to one side of the lower surface of the cold heading table, and a guide hole compatible with the guide rod is opened on the upper surface of the machine base. The cold heading table can be guided by the setting of the guide hole and the guide rod to ensure the stability of the up and down movement.

[0011] As a preferred technical solution of the present invention, the sliding rail component includes a support rod, which is fixedly connected to the upper surface of the machine base. The top of the support rod is fixedly connected to a guide slide. The number of support rods is two more than the number of cold heading movable dies. The multiple support rods located in the middle correspond to the positions of the cold heading movable dies. The guide slide is fixed by the support rod to improve the stability of the guide slide.

[0012] As a preferred technical solution of the present invention, the inner wall of the guide slide has a smooth lifting surface, the top of the outer wall of the guide slide has an entry expansion surface, the middle part of the outer wall of the guide slide extends outward to form an opening and closing surface, and the bottom of the outer wall of the guide slide shrinks inward to form a shrinkage surface, and there is a smooth transition between the entry expansion surface, the opening and closing surface and the shrinkage surface.

[0013] As a preferred technical solution of the present invention, the distance between the two entry expansion surfaces is smaller than the distance between the two contraction surfaces. When the guide wheel enters the smooth lifting surface from the entry expansion surface, the opening and closing surface, and the contraction surface, the clamping arm changes from an open state to a contracted state.

[0014] As a preferred technical solution of the present invention, the walking component includes an X-axis driving component, a Y-axis driving component and a Z-axis driving component. The X-axis driving component is used to control the Y-axis driving component to slide along the X-axis direction, the Y-axis driving component is used to control the Z-axis driving component to slide along the Y-axis direction, and the Z-axis driving component is used to control the delivery bracket to slide along the Z-axis direction.

[0015] As a preferred technical solution of the present invention, the X-axis driving component includes an X-axis holding frame, the upper surface of the X-axis holding frame is respectively fixedly connected with a rack and a balance rail, the upper surface of the balance rail is slidably connected with a moving seat through a slide seat, the top of the moving seat is fixedly connected with a driving motor, the output end of the driving motor is fixedly connected with a driving gear, and the driving gear is meshed with the rack.

[0016] As a preferred technical solution of the present invention, the Y-axis driving component includes a triangular seat fixedly connected to the top of the moving seat, the side wall of the triangular seat is fixedly connected to an electric push rod 1, and the output end of the electric push rod 1 is fixedly connected to a mounting seat.

[0017] As a preferred technical solution of the present invention, the Z-axis driving component includes an electric push rod 2 fixedly connected to the upper surface of the mounting seat, and the output end of the electric push rod 2 is fixedly connected to the delivery bracket.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] In the scheme of the present invention:

[0020] 1. Through the setting of hydraulic push rod, cold heading movable die, cold heading clamping die, delivery component and walking component, the hydraulic push rod controls the cold heading movable die and cold heading clamping die to cooperate with each other to complete the stamping and cold heading of the workpiece. At the same time, the walking component can also drive the delivery component to move in the X-axis, Y-axis and Z-axis directions, and cooperate with the delivery component to realize automatic delivery, thereby improving the production efficiency of cold heading;

[0021] 2. Through the setting of the delivery component and the sliding rail component, when the guide wheel contacts the guide slide, it can enter the smooth lifting surface from the expansion surface, the opening and closing surface, and the contraction surface. In this process, the guide wheel will push the control arm and the clamping arm from the balanced state to the open state, then to the balanced state, and then to the clamping state in the smooth lifting surface, so that the workpiece can be driven to rise straightly. The advantage of this setting is that during delivery, the workpiece can fall directly to the cold heading position in the open state, and can also be automatically reset by the tension of the reset spring to achieve clamping of the workpiece. The entire delivery component can complete automatic opening and closing only through its own mechanical coordination, which reduces the control load and control cost compared with traditional manipulators. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the three-dimensional structure of a cold heading forming machine provided by the present invention;

[0023] Figure 2 A schematic side view of the cold heading machine provided by the present invention;

[0024] Figure 3 A schematic structural diagram of a cold heading forming machine travel component and a delivery component provided by the present invention;

[0025] Figure 4 A schematic diagram of the structure of an X-axis driving component of a cold heading forming machine provided by the present invention;

[0026] Figure 5 A schematic structural diagram of a delivery component and a slide rail component of a cold heading forming machine provided by the present invention;

[0027] Figure 6 A schematic diagram of the matching state of a delivery component and a slide rail component of a cold heading forming machine provided by the present invention;

[0028] Figure 7 A cold heading forming machine provided by the present invention Figure 6 A schematic diagram of a top view structure;

[0029] Figure 8 A schematic diagram of the second structural form of a delivery component of a cold heading forming machine provided by the present invention.

[0030] Indicated in the figure:

[0031] 10. Machine base; 101. Guide hole; 11. Support seat; 111. Vertical slide rail; 12. Hydraulic push rod; 13. Cold heading table; 131. Vertical slide seat; 132. Guide rod; 14. Cold heading movable die; 15. Cold heading closing die;

[0032] 20. Delivery component; 21. Delivery bracket; 22. Extension arm; 23. First hinge; 24. Second hinge; 25. Connecting rod; 26. Control arm; 27. Clamping arm; 28. Guide wheel; 29. ​​Return spring;

[0033] 30. Slide rail component; 31. Support rod; 32. Guide slide; 321. Smooth lifting surface; 322. Entry and expansion surface; 323. Opening and closing surface; 324. Contraction surface;

[0034] 40. Walking parts; 41. X-axis driving parts; 411. X-axis retaining frame; 412. Balance rail; 413. Moving seat; 414. Driving motor; 415. Driving gear; 416. Rack; 42. Y-axis driving parts; 421. Triangular seat; 422. Electric push rod 1; 423. Mounting seat; 43. Z-axis driving parts; 431. Electric push rod 2. DETAILED DESCRIPTION

[0035] To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Example

[0036] See also Figures 1 to 8 The present invention provides a technical solution: a cold heading forming machine, including a machine base 10, a support base 11 is fixedly connected to one side of the upper surface of the machine base 10, a hydraulic push rod 12 is installed on the upper surface of the support base 11, a cold heading table 13 is fixedly installed at the output end of the hydraulic push rod 12, a cold heading movable die 14 is arranged at the bottom of the cold heading table 13, a cold heading clamping die 15 adapted to the cold heading movable die 14 is fixedly connected to the middle of the upper surface of the machine base 10, the cold heading movable die 14 is plugged into the cold heading clamping die 15 to perform cold heading forming on the workpiece, specifically, in this embodiment, three forming pieces are arranged at the bottom of the cold heading movable die 14, three forming grooves are arranged in the cold heading clamping die 15, the three forming pieces correspond to the three forming grooves, and different numbers of forming pieces and forming grooves can be designed to meet different process requirements, and also include:

[0037] The delivery component 20 includes a delivery bracket 21, and a side wall of the delivery bracket 21 is fixedly connected with a plurality of extension arms 22. Specifically, in the present embodiment, the number of the extension arms 22 is five, and the two side walls of the extension arm 22 extend outwards to form a first hinge portion 23 and a second hinge portion 24 respectively. The side wall of the first hinge portion 23 is rotatably connected with a connecting rod 25 through a rotating shaft, and one end of the connecting rod 25 is rotatably connected with a control arm 26 through a rotating shaft, and one end of the control arm 26 is rotatably connected with a clamping arm 27 through a rotating shaft, and the end of the clamping arm 27 away from the control arm 26 is detachably connected with a finger clamp, and the finger clamp is detachably connected to the control arm 26 by bolts, and the side wall of the control arm 26 is provided with threaded holes adapted to the bolts, and different finger clamps can be selected according to the workpiece to be processed. The clamping arm 27 is rotatably connected to the second hinged portion 24. The end of the control arm 26 away from the clamping arm 27 is rotatably connected to a guide wheel 28 through a support shaft. The guide wheel 28 can rotate relative to the support shaft. The advantage of using the guide wheel 28 is that the friction force can be reduced during movement. A reset spring 29 is also fixedly connected between the middle part of the side wall of the control arm 26 and the extension arm 22. The reset spring 29 has elastic potential energy for automatic reset in the extended and compressed state. A sliding rail component 30 is also fixedly connected to the side of the upper surface of the machine base 10 close to the cold heading mold 15. When the sliding rail component 30 contacts the guide wheel 28, a sliding fit is formed. The movement of the guide wheel 28 can directly drive the control arm 26 and the clamping arm 27 to automatically adjust, so that the corresponding movement mode of the components can achieve the purpose of automatic opening and closing.

[0038] The two clamping arms 27 are in a balanced state when the return spring 29 is in a free extension state, the two clamping arms 27 are in a relatively expanded state when the return spring 29 is in an extended state, and the two clamping arms 27 are in a tightened clamping state when the return spring 29 is in a contracted state;

[0039] The walking component 40 is connected to a side wall of the base 10 and is used to control the delivery component 20 to move along the X-axis, the Y-axis and the Z-axis. Example

[0040] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the side wall of the support seat 11 is also fixedly connected with a vertical slide rail 111, and the cold heading table 13 is fixedly connected with a vertical slide seat 131 on the opposite side of the support seat 11. The cold heading table 13 is slidably connected to the side wall of the vertical slide rail 111 through the vertical slide seat 131. Through the setting of the vertical slide rail 111, the cold heading table 13 can achieve self-balancing through the vertical slide seat 131 when moving up and down, and maintain good stability.

[0041] A guide rod 132 is fixedly connected to one side of the lower surface of the cold heading table 13, and a guide hole 101 adapted to the guide rod 132 is opened on the upper surface of the machine base 10. The cold heading table 13 can be guided by the setting of the guide hole 101 and the guide rod 132 to ensure the stability of the up and down movement. Example

[0042] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the slide rail component 30 includes a support rod 31, the support rod 31 is fixedly connected to the upper surface of the machine base 10, the top of the support rod 31 is fixedly connected with a guide slide 32, the number of support rods 31 is two more than the number of cold heading movable dies 14, the multiple support rods 31 located in the middle correspond to the positions of the cold heading movable dies 14, the guide slide 32 is fixed by the support rod 31, and the stability of the guide slide 32 is improved.

[0043] The inner wall of the guide slide 32 has a smooth lifting surface 321, the top of the outer wall of the guide slide 32 has an entry expansion surface 322, the middle of the outer wall of the guide slide 32 extends outward to form an opening and closing surface 323, and the bottom of the outer wall of the guide slide 32 shrinks inward to form a shrinking surface 324. There is a smooth transition between the entry expansion surface 322, the opening and closing surface 323 and the shrinking surface 324. Specifically, when in use, an anti-corrosion coating can be coated on the outside of the guide slide 32 to improve the overall smoothness of the outer surface of the guide slide 32, so that the guide wheel 28 can slide stably on the outer wall of the guide slide 32.

[0044] The distance between the two expansion surfaces 322 is smaller than the distance between the two contraction surfaces 324. When the guide wheel 28 enters the smooth lifting surface 321 from the expansion surface 322, the opening and closing surface 323, and the contraction surface 324, the clamping arm 27 changes from an open state to a contracted state. Example

[0045] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, as a preferred embodiment, on the basis of the above method, further, the walking component 40 includes an X-axis driving component 41, a Y-axis driving component 42 and a Z-axis driving component 43, the X-axis driving component 41 is used to control the Y-axis driving component 42 to slide along the X-axis direction, the Y-axis driving component 42 is used to control the Z-axis driving component 43 to slide along the Y-axis direction, and the Z-axis driving component 43 is used to control the delivery bracket 21 to slide along the Z-axis direction.

[0046] The X-axis driving member 41 includes an X-axis holding frame 411, and the upper surface of the X-axis holding frame 411 is fixedly connected with a rack 416 and a balance rail 412 respectively, and the upper surface of the balance rail 412 is slidably connected with a moving seat 413 through a sliding seat, and the top of the moving seat 413 is fixedly connected with a driving motor 414, and the output end of the driving motor 414 is fixedly connected with a driving gear 415, and the driving gear 415 is meshed with the rack 416. The driving motor 414 serves as a driving source for the X-axis movement. A rubber protective sleeve is arranged between the X-axis holding frame 411 and the moving seat 413, and the rubber protective sleeve can prevent external impurities from entering the balance rail 412 and affecting the sliding effect of the balance rail 412 and the moving seat 413. When the moving seat 413 moves, the rubber protective sleeve will be adjusted accordingly, the moving direction will shrink, and the end away from the moving direction will extend to form a package for the balance rail 412.

[0047] The Y-axis driving member 42 includes a triangular seat 421 fixedly connected to the top of the moving seat 413, the side wall of the triangular seat 421 is fixedly connected with an electric push rod 422, the electric push rod 422 is fixedly connected to the triangular seat 421 through a fixing frame, the output end of the electric push rod 422 is fixedly connected with a mounting seat 423, the electric push rod 422 serves as a driving source for the Y-axis, and the triangular seat 421 is provided with a through hole for the electric push rod 422 to extend and retract.

[0048] The Z-axis driving component 43 includes an electric push rod 431 fixedly connected to the upper surface of the mounting seat 423. The output end of the electric push rod 431 is fixedly connected to the delivery bracket 21. The electric push rod 431 serves as a driving source for the Z-axis. The electric push rod 431 is vertically fixed on the top of the mounting seat 423. A through hole for the electric push rod 431 to extend and retract is opened at the center of the top of the mounting seat 423. Example

[0049] Specifically, when the cold heading forming machine is working / in use: when in use, the workpiece can be conveyed by the conveying equipment to the delivery component 20, and then conveyed to the cold heading movable die 14 and the cold heading closing die 15 through the delivery component 20 for cold heading operation. Specifically, the hydraulic push rod 12 is started, and the hydraulic push rod 12 controls the cold heading movable die 14 to slide downward. The cold heading movable die 14 and the cold heading closing die 15 cooperate with each other to complete the stamping and cold heading of the workpiece. When delivery is required, the drive motor 414 is started, and the drive motor 414 drives the drive gear 415 to rotate, and the drive gear 415 engages the rack 416 so that the movable seat 413 is in The horizontal sliding on the balance rail 412 drives the triangular seat 421 to slide horizontally along the X-axis direction. The electric push rod 1 422 on the triangular seat 421 can push the mounting seat 423 to slide horizontally along the Y-axis direction. The electric push rod 2 431 on the top of the mounting seat 423 can drive the delivery bracket 21 to slide up and down along the Z-axis direction. When the guide wheel 28 contacts the guide slide 32, since the top spacing of the guide slide 32 is smaller than the bottom spacing, when the guide wheel 28 moves downward from the top, it can be squeezed outward, thereby promoting the guide wheel 28 to slide outward, so as to easily reach the expansion surface 322. At the same time, When the guide wheel 28 moves from the bottom to the top, due to the increase in the bottom spacing, when the external force is lost, the return spring 29 makes the guide wheel 28 enter the equilibrium position. When subjected to external force at this position, the guide wheel 28 will move inward to reach the smooth lifting surface 321. When the guide wheel 28 contacts the guide slide 32, it can enter the smooth lifting surface 321 through the expansion surface 322, the opening and closing surface 323, and the contraction surface 324. In this process, the guide wheel 28 will push the control arm 26 and the clamping arm 27 from the equilibrium state to the open state and then to the equilibrium state, and then reach the clamping state in the smooth lifting surface 321. In this way, the workpiece can be driven to rise straightly. The advantage of this arrangement is that when delivering the workpiece, the workpiece can directly fall to the cold heading position in the open state, and can also be automatically reset by the pulling force of the reset spring 29 to clamp the workpiece. The entire delivery component 20 can complete automatic opening and closing only through its own mechanical coordination, which reduces the control load and control cost compared to traditional manipulators. When delivering the workpiece, the guide wheel 28 only needs to reach the opening and closing surface 323 and then move upward, and the bottom of the workpiece will enter the molding groove. When picking up the workpiece, the guide wheel 28 needs to go through the entire movement steps to achieve clamping and picking up the material.

[0050] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A cold heading machine, comprising a machine base (10), characterized in that: A support seat (11) is fixedly connected to one side of the upper surface of the machine base (10), a hydraulic push rod (12) is installed on the upper surface of the support seat (11), a cold heading table (13) is fixedly installed on the output end of the hydraulic push rod (12), a cold heading movable die (14) is arranged at the bottom of the cold heading table (13), a cold heading clamping die (15) adapted to the cold heading movable die (14) is fixedly connected to the middle of the upper surface of the machine base (10), the cold heading movable die (14) is inserted into the cold heading clamping die (15) to perform cold heading forming on the workpiece, and further comprises: The delivery component (20) comprises a delivery bracket (21), a side wall of the delivery bracket (21) is fixedly connected to a plurality of extension arms (22), two side walls of the extension arm (22) respectively extend outward to form a first hinge portion (23) and a second hinge portion (24), the side wall of the first hinge portion (23) is rotatably connected to a connecting rod (25) via a rotating shaft, one end of the connecting rod (25) is rotatably connected to a control arm (26) via a rotating shaft, one end of the control arm (26) is rotatably connected to a clamping arm (27) via a rotating shaft, and the clamping arm (27) is rotatably connected to the control arm (26). 7) A finger clamp is detachably connected to one end away from the control arm (26); the clamping arm (27) is rotatably connected to the second hinged portion (24); the end of the control arm (26) away from the clamping arm (27) is rotatably connected to a guide wheel (28) via a support shaft; a return spring (29) is fixedly connected between the middle of the side wall of the control arm (26) and the extension arm (22); a slide rail component (30) is fixedly connected to the side of the upper surface of the machine base (10) close to the cold heading mold (15); and the slide rail component (30) forms a sliding fit with the guide wheel (28) when in contact; Wherein, when the return spring (29) is in a freely retractable state, the two clamping arms (27) are in a balanced state; when the return spring (29) is in an extended state, the two clamping arms (27) are in a relatively expanded state; and when the return spring (29) is in a retracted state, the two clamping arms (27) are in a tightened clamping state; A moving component (40), the moving component (40) being connected to a side wall of the machine base (10) and used for controlling the delivery component (20) to move along an X-axis, a Y-axis and a Z-axis; The slide rail component (30) comprises a support rod (31), the support rod (31) is fixedly connected to the upper surface of the machine base (10), the top of the support rod (31) is fixedly connected to a guide slide (32), the number of the support rods (31) is two more than the number of the cold heading movable die (14), and the positions of the plurality of support rods (31) located in the middle correspond to those of the cold heading movable die (14); The inner side wall of the guide slide (32) has a smooth lifting surface (321), the top of the outer side wall of the guide slide (32) has an entry expansion surface (322), the middle part of the outer side wall of the guide slide (32) extends outward to form an opening and closing surface (323), the bottom of the outer side wall of the guide slide (32) shrinks inward to form a shrinking surface (324), and the entry expansion surface (322), the opening and closing surface (323) and the shrinking surface (324) have a smooth transition; The distance between the two entry expansion surfaces (322) is smaller than the distance between the two contraction surfaces (324); when the guide wheel (28) enters the smooth lifting surface (321) from the entry expansion surface (322), the opening and closing surface (323), and the contraction surface (324), the clamping arm (27) changes from an open state to a contracted state.

2. A cold heading machine according to claim 1, characterized in that: The side wall of the support seat (11) is also fixedly connected to a vertical slide rail (111), and the cold heading table (13) is fixedly connected to a vertical slide seat (131) on the side opposite to the support seat (11), and the cold heading table (13) is slidably connected to the side wall of the vertical slide rail (111) via the vertical slide seat (131).

3. A cold heading machine according to claim 1, characterized in that: A guide rod (132) is fixedly connected to one side of the lower surface of the cold heading table (13), and a guide hole (101) adapted to the guide rod (132) is provided on the upper surface of the machine base (10).

4. A cold heading machine according to claim 1, characterized in that: The walking component (40) comprises an X-axis driving component (41), a Y-axis driving component (42) and a Z-axis driving component (43), wherein the X-axis driving component (41) is used to control the Y-axis driving component (42) to slide along the X-axis direction, the Y-axis driving component (42) is used to control the Z-axis driving component (43) to slide along the Y-axis direction, and the Z-axis driving component (43) is used to control the delivery bracket (21) to slide along the Z-axis direction.

5. A cold heading machine according to claim 4, characterized in that: The X-axis driving member (41) comprises an X-axis holding frame (411), the upper surface of the X-axis holding frame (411) being fixedly connected to a rack (416) and a balance rail (412), respectively; the upper surface of the balance rail (412) being slidably connected to a moving seat (413) via a sliding seat; the top of the moving seat (413) being fixedly connected to a driving motor (414); the output end of the driving motor (414) being fixedly connected to a driving gear (415), and the driving gear (415) being meshed with the rack (416).

6. A cold heading machine according to claim 5, characterized in that: The Y-axis driving member (42) comprises a triangular seat (421) fixedly connected to the top of the moving seat (413), a side wall of the triangular seat (421) is fixedly connected to an electric push rod 1 (422), and an output end of the electric push rod 1 (422) is fixedly connected to a mounting seat (423).

7. A cold heading machine according to claim 6, characterized in that: The Z-axis driving member (43) comprises a second electric push rod (431) fixedly connected to the upper surface of the mounting seat (423), and an output end of the second electric push rod (431) is fixedly connected to the delivery bracket (21).

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