Clamping mechanism for cold header

Abstract

The invention discloses a clamping mechanism for a cold header, which comprises a workbench, a concave part, a moving structure, a guide rail, an electric sliding block, a first electric telescopic rod, an L-shaped mounting seat, a rotating structure, a second electric telescopic rod, an electric clamping manipulator and a control panel, a moving structure is arranged on the upper end face of the sunken part and comprises guide rails, an electric sliding block and a first electric telescopic rod, the guide rails are arranged in parallel in the length direction of the workbench, the electric sliding block is arranged on the guide rails in a sliding fit mode, and the first electric telescopic rod is arranged above the electric sliding block in a telescopic mode; according to the cold heading device, a workpiece can be driven to rotate, then cold heading is conducted on different faces of the workpiece, meanwhile, machining is conducted through a plurality of cold heading stations, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of cold heading machine processing, in particular to the technical field of a clamping mechanism used for a cold heading machine. Background Art

[0002] Cold heading machine is a special equipment mainly used for mass production of nuts, bolts and other fasteners. According to the theory of metal plastic deformation, a certain pressure is applied to the metal blank at room temperature to cause it to undergo plastic deformation in the die cavity and be formed into the specified shape and size. When processing fasteners, it is necessary to use the cold heading device of the cold heading machine for processing.

[0003] At present, cold heading machines release a lot of heat during the processing process, and require a lot of lubricating oil to work during the operation of the cold heading machines. Most cold heading machines have skylights on the top of the cold heading machines. When the cold heading machines are working, a lot of heat will be emitted from the skylight and oil mist will be generated. The oil mist not only endangers the health of the workers but also causes harm to the environment. Moreover, the lubricating oil in the oil mist cannot be recycled, resulting in a waste of resources.

[0004] In order to solve the problems raised in the background technology, for example, application number CN201921187597.X discloses a cold heading machine, including a cold heading machine body, a smoke collecting hood is installed on the top of the cold heading machine body, the bottom of the smoke collecting hood is communicated with the cold heading machine body, a smoke conveying pipe is installed on the top of the smoke collecting hood, the smoke conveying pipe is "L" shaped, and one vertical end of the smoke conveying pipe is communicated with the de-oiling tank, the oil mist generated by the cold heading machine is collected by the smoke collecting hood, the oil in the oil mist is separated by the mutual cooperation between the cooling pipe, the de-oiling plate and the guide plate, the separated oil is discharged through the oil discharge pipe, and the treated mist is discharged through the vacuum pump, which can not only avoid the oil mist from polluting the environment, but also can recycle the oil in the oil mist, but the device also has the following defects: Although the device is provided with a smoke hood to collect the oil mist generated by the cold heading machine, when the cold heading machine is in use, the entire feeding, shearing, cold heading and ejection steps are mostly subdivided, and each step requires manual adjustment. Although the final use requirements can be met, this will increase labor and the overall use efficiency will be greatly reduced, making it very impractical to use.

[0005] In order to solve the problems raised in the above-mentioned technology, for example, application number CN202320186237.8 discloses a novel cold heading machine, including a base and a die base body, the upper end of the base is fixedly installed with a main body mechanism, the two ends of the base are respectively fixedly installed with a power mechanism and a discharging mechanism, the side of the base is fixedly installed with a feeding clamping mechanism, a die base is arranged between the feeding clamping mechanism and the main body mechanism, and a feeding mechanism, a shearing mechanism, a die base and an ejection mechanism are arranged; the feeding mechanism can clamp multiple steels at the same time and feed them into the cold heading machine, and cut the multiple steels according to length through the shearing mechanism, and finally eject the screws through the ejection mechanism after cold heading into screws in the die base; the production efficiency is greatly improved, but the device still has the following defects: 1. In the process of machining a workpiece, it is usually necessary to perform cold heading on multiple surfaces, but the above device cannot drive the workpiece to rotate, which results in the inability to machine other surfaces of the workpiece. Manual operation is required by the staff, which brings great inconvenience to the machining; 2. There are fewer cold heading stations in the above device, which results in uneven cold heading of the workpiece, thereby reducing the work quality. Summary of the invention

[0006] The purpose of the present invention is to solve the problems in the prior art and to propose a clamping mechanism for a cold heading machine, which can drive the workpiece to rotate, thereby cold heading different surfaces of the workpiece, and simultaneously perform processing through multiple cold heading stations, thereby greatly improving work efficiency.

[0007] To achieve the above-mentioned purpose, the present invention proposes a clamping mechanism for a cold heading machine, comprising a workbench, a recessed portion, a moving structure, a guide rail, an electric slider, a first electric telescopic rod, an L-shaped mounting seat, a rotating structure, a second electric telescopic rod, an electric clamping manipulator, and a control panel. The upper front surface of the workbench is provided with a recessed portion in parallel, and the upper end surface of the recessed portion is provided with a moving structure. The moving structure comprises a guide rail, an electric slider and a first electric telescopic rod. The guide rail is provided in parallel along the length direction of the workbench, and an electric slider is slidably fitted on the guide rail. The upper part of the electric slider is provided with a first electric telescopic rod for telescopically extending and retracting. The telescopic end of the first electric telescopic rod is connected to the L-shaped mounting seat, and the side wall of the L-shaped mounting seat is provided with a rotating structure. One side of the rotating structure is connected to the second electric telescopic rod, and the telescopic end of the second electric telescopic rod is connected to an electric clamping manipulator for clamping a workpiece. A control panel is installed on the front surface of the workbench, and the control panel is electrically connected to the electric slider, the first electric telescopic rod, the second electric telescopic rod and the electric clamping manipulator through electric wires.

[0008] Preferably, the rotating structure includes a rotating motor, a rotating shaft and a rotating disk, the rotating motor is mounted on the rear side wall of the L-shaped mounting seat, the rotating shaft is rotatably mounted on the front side wall of the L-shaped mounting seat, the output end of the rotating motor passes through the side wall of the L-shaped mounting seat and is connected to the rotating shaft, one end of the rotating shaft is rotatably connected to the rotating disk, and the input end of the rotating motor is electrically connected to the control panel through wires.

[0009] Preferably, the upper end surface of the workbench is provided with four holes, each of the holes is equipped with a lower die seat, and a cold heading cavity for placing a workpiece is opened inside the upper part of the lower die seat.

[0010] Preferably, a telescopic spring is installed between the inner bottom wall of the hole and the outer bottom wall of the lower die base.

[0011] Preferably, an L-shaped support plate is provided on the upper side of the workbench, four upper die seats are provided below the L-shaped support plate, each upper die seat corresponds to a lower die seat, and a cold heading head of different shapes is provided below each upper die seat.

[0012] Preferably, four hydraulic cylinders are arranged above the L-shaped support plate, the driving end of each hydraulic cylinder passes through the bottom of the L-shaped support plate and is connected to the upper mold base, and the input end of the hydraulic cylinder is electrically connected to the control panel through wires.

[0013] Preferably, two cooling fans are installed on the front side wall of the L-shaped support plate by bolts, and the air outlets of the cooling fans are all facing the direction of the cold heading head. Two driving motors are installed on the rear side wall of the L-shaped support plate, and the output ends of the driving motors are all connected to the cooling fans through the side walls of the L-shaped support plate, and the input ends of the driving motors are electrically connected to the control panel through wires.

[0014] Preferably, the side wall of the workbench is connected with a guide plate, the guide plate is arranged to be inclined downward, and the bottom end of the guide plate is connected with a material receiving box.

[0015] Beneficial effects of the present invention: 1. The present invention can drive the workpiece to rotate by using the mobile structure, the first electric telescopic rod, the L-shaped mounting seat, the rotating structure, the second electric telescopic rod and the electric clamping manipulator in coordination. First, the workpiece to be processed is placed in the cold heading cavity on the lower die seat, and then the first hydraulic cylinder is started, the hydraulic cylinder drives the first upper die seat to descend, and the upper die seat drives the cold heading head to descend to perform cold heading on the workpiece. After the initial cold heading is completed, the second electric telescopic rod is started, the second electric telescopic rod drives the electric clamping manipulator to move forward, and then the electric clamping manipulator is controlled by the control panel. The manipulator clamps the workpiece, and then the first electric telescopic rod rises, thereby driving the L-shaped mounting seat to rise, thereby driving the workpiece out of the cold heading cavity, and then starting the rotating motor, the rotating motor drives the rotating shaft to rotate, the rotating shaft drives the rotating disk to rotate, the rotating disk drives the electric clamping manipulator to rotate, and then drives the workpiece to rotate to different surfaces, and then put it into the cold heading cavity for processing on different surfaces, thereby improving work efficiency, eliminating the need for manual operation, saving time and effort, and convenient operation, and solving the problem of being unable to drive the workpiece to rotate, thereby failing to process other surfaces of the workpiece; 2. The present invention can perform cold heading on the workpiece in sequence by arranging four lower die seats. After the workpiece is cold headed on the first lower die seat, the workpiece is clamped by an electric clamping manipulator, and then the first electric telescopic rod rises, thereby driving the L-shaped mounting seat to rise, thereby driving the workpiece out of the first cold heading cavity, and then the electric slider moves on the guide rail, thereby driving the workpiece to move to the second lower die seat for cold heading, and then cold heading treatment is performed in sequence, thereby ensuring that the workpiece can be uniform, thereby improving the processing quality, and solving the problem that there are fewer cold heading stations, resulting in uneven cold heading of the workpiece, thereby reducing the work quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view of a clamping mechanism for a cold heading machine of the present invention; Figure 2 It is a schematic diagram of a rotating structure of a clamping mechanism for a cold heading machine according to the present invention; Figure 3 It is a cross-sectional view of the interior of a workbench of a clamping mechanism for a cold heading machine of the present invention; Figure 4 It is a schematic diagram of the moving structure of a clamping mechanism for a cold heading machine according to the present invention; In the figure: 1-workbench, 2-recessed portion, 3-moving structure, 31-guide rail, 32-electric slider, 33-first electric telescopic rod, 4-L-type mounting seat, 5-rotating structure, 51-rotating motor, 52-rotating shaft, 53-rotating disk, 6-second electric telescopic rod, 7-electric clamping manipulator, 8-control panel, 9-hole, 10-lower die base, 101-cold heading cavity, 11-telescopic spring, 12-L-type support plate, 13-upper die base, 14-cold heading head, 15-hydraulic cylinder, 16-cooling fan, 17-drive motor, 18-guide plate, 19-material receiving box. DETAILED DESCRIPTION

[0017] See also Figures 1 to 4 The present invention discloses a clamping mechanism for a cold heading machine, comprising a workbench 1, a recessed portion 2, a moving structure 3, a guide rail 31, an electric slider 32, a first electric telescopic rod 33, an L-shaped mounting seat 4, a rotating structure 5, a second electric telescopic rod 6, an electric clamping manipulator 7, and a control panel 8. The upper front surface of the workbench 1 is parallel to the recessed portion 2, and the upper end surface of the recessed portion 2 is provided with a moving structure 3. The moving structure 3 comprises a guide rail 31, an electric slider 32 and a first electric telescopic rod 33. The guide rail 31 is parallel to the length direction of the workbench 1, and the guide rail 31 is slidably matched with an electric slider. Block 32, a first electric telescopic rod 33 is telescopically arranged above the electric slider 32, the telescopic end of the first electric telescopic rod 33 is connected to an L-shaped mounting seat 4, a rotating structure 5 is arranged on the side wall of the L-shaped mounting seat 4, a second electric telescopic rod 6 is connected to one side of the rotating structure 5, the telescopic end of the second electric telescopic rod 6 is connected to an electric clamping manipulator 7 for clamping a workpiece, a control panel 8 is installed on the front surface of the workbench 1, and the control panel 8 is electrically connected to the electric slider 32, the first electric telescopic rod 33, the second electric telescopic rod 6 and the electric clamping manipulator 7 through electric wires.

[0018] See also Figure 2 The present invention discloses a clamping mechanism for a cold heading machine, wherein the rotating structure 5 comprises a rotating motor 51, a rotating shaft 52 and a rotating disk 53. The rotating motor 51 is mounted on the rear side wall of an L-shaped mounting seat 4, and the rotating shaft 52 is rotatably mounted on the front side wall of the L-shaped mounting seat 4. The output end of the rotating motor 51 passes through the side wall of the L-shaped mounting seat 4 and is connected to the rotating shaft 52. One end of the rotating shaft 52 is rotatably connected to the rotating disk 53, and the input end of the rotating motor 51 is electrically connected to the control panel 8 through an electric wire. By starting the rotating motor 51, the rotating motor 51 drives the rotating shaft 52 to rotate, the rotating shaft 52 drives the rotating disk 53 to rotate, and the rotating disk 53 drives the electric clamping manipulator 7 to rotate, thereby driving the workpiece to rotate to different surfaces, thereby processing different surfaces of the workpiece.

[0019] See also Figure 3 The present invention discloses a clamping mechanism for a cold heading machine, wherein the upper end surface of the workbench 1 is provided with four holes 9, each of the holes 9 is provided with a lower die seat 10, a cold heading cavity 101 for placing a workpiece is provided above the lower die seat 10, and a telescopic spring 11 is installed between the inner bottom wall of the hole 9 and the outer bottom wall of the lower die seat 10. The telescopic spring 11 can drive the lower die seat 10 to reset and play a buffering role at the same time.

[0020] See also Figure 1 The present invention provides a clamping mechanism for a cold heading machine, wherein an L-shaped support plate 12 is provided on one side above the workbench 1, and four upper die seats 13 are provided below the L-shaped support plate 12, each of the upper die seats 13 corresponds to the lower die seat 10, and a cold heading head 14 of different shapes is provided below each of the upper die seats 13, and four hydraulic cylinders 15 are provided above the L-shaped support plate 12, and a driving end of each hydraulic cylinder 15 passes through the lower side of the L-shaped support plate 12 and is connected to the upper die seat 13, and an input end of the hydraulic cylinder 15 is electrically connected to a control panel 8 through an electric wire, and by providing four lower die seats 13, the workpiece can be cold headed in sequence, thereby ensuring uniform processing of the workpiece and improving processing quality.

[0021] See also Figure 1 The present invention discloses a clamping mechanism for a cold heading machine, wherein the front side wall of the L-shaped support plate 12 is provided with two cooling fans 16 by bolts, and the air outlets of the cooling fans 16 are all facing the cold heading head 14, and the rear side wall of the L-shaped support plate 12 is provided with two driving motors 17, and the output ends of the driving motors 17 are all connected to the cooling fans 16 through the side walls of the L-shaped support plate 12, and the input ends of the driving motors 17 are electrically connected to the control panel 8 through wires, and when the cold heading head 14 generates heat after long-term use, the driving motor 17 is started, and the driving motor 17 drives the cooling fans 16, thereby cooling the cold heading head 14 to avoid damage to the cold heading head 14 due to excessive temperature.

[0022] See also Figure 1 The present invention discloses a clamping mechanism for a cold heading machine. The side wall of the workbench 1 is connected with a guide plate 18, and the guide plate 18 is arranged to be tilted downward. The bottom end of the guide plate 18 is connected with a material receiving box 19. After the cold heading of the workpieces is completed, they are uniformly collected in the material receiving box 19 to facilitate subsequent processing.

[0023] Working process of the present invention: In the working process of the clamping mechanism for a cold heading machine of the present invention, the workpiece to be processed is first placed in the cold heading cavity 101 on the lower die seat 10, and then the first hydraulic cylinder 15 is started, the hydraulic cylinder 15 drives the first upper die seat 13 to descend, and the upper die seat 13 drives the cold heading head 14 to descend to perform cold heading on the workpiece. After the initial cold heading is completed, the second electric telescopic rod 6 is started, and the second electric telescopic rod 6 drives the electric clamping manipulator 7 to move forward, and then the control panel 8 is used to control the electric clamping manipulator 7 to clamp the workpiece, and then the first electric telescopic rod 33 rises, thereby driving the L-shaped mounting seat 4 to rise, and then driving the workpiece out of the cold heading cavity 101, and then the rotation is started. The motor 51 drives the rotating shaft 52 to rotate, the rotating shaft 52 drives the rotating disk 53 to rotate, the rotating disk 53 drives the electric clamping manipulator 7 to rotate, and then drives the workpiece to rotate to different surfaces, and then puts it into the cold heading cavity 101 for processing on different surfaces. When the workpiece is processed on the first lower die seat 10, the first electric telescopic rod 33 rises, and then drives the L-shaped mounting seat 4 to rise, and then drives the workpiece out of the first cold heading cavity 101, and then moves on the guide rail 31 through the electric slider 32, and then drives the workpiece to move to the second lower die seat 10 for cold heading, and then performs cold heading treatment in sequence, so as to ensure that the workpiece can be uniform, thereby improving the processing quality.

[0024] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and wiring layout in detail.

[0025] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention belongs to the protection scope of the present invention.

Claims

1. A clamping mechanism for a cold heading machine, characterized in that: The invention comprises a workbench (1), a recessed portion (2), a moving structure (3), a guide rail (31), an electric slider (32), a first electric telescopic rod (33), an L-shaped mounting seat (4), a rotating structure (5), a second electric telescopic rod (6), an electric clamping manipulator (7), and a control panel (8). The upper front surface of the workbench (1) is provided with the recessed portion (2) in parallel, the upper end surface of the recessed portion (2) is provided with the moving structure (3), the moving structure (3) comprises a guide rail (31), an electric slider (32), and a first electric telescopic rod (33), the guide rail (31) is provided in parallel along the length direction of the workbench (1), and the guide rail (31) is slidably matched with the electric slider (32). A first electric telescopic rod (33) is telescopically arranged above the electric slide block (32); the telescopic end of the first electric telescopic rod (33) is connected to an L-shaped mounting seat (4); a rotating structure (5) is arranged on the side wall of the L-shaped mounting seat (4); a second electric telescopic rod (6) is connected to one side of the rotating structure (5); the telescopic end of the second electric telescopic rod (6) is connected to an electric clamping manipulator (7) for clamping a workpiece; a control panel (8) is installed on the front surface of the workbench (1); the control panel (8) is electrically connected to the electric slide block (32), the first electric telescopic rod (33), the second electric telescopic rod (6) and the electric clamping manipulator (7) through electric wires.

2. A clamping mechanism for a cold heading machine as claimed in claim 1, characterized in that: The rotating structure (5) comprises a rotating motor (51), a rotating shaft (52) and a rotating disk (53); the rotating motor (51) is mounted on the rear side wall of the L-shaped mounting seat (4); the rotating shaft (52) is rotatably mounted on the front side wall of the L-shaped mounting seat (4); the output end of the rotating motor (51) passes through the side wall of the L-shaped mounting seat (4) and is connected to the rotating shaft (52); one end of the rotating shaft (52) is rotatably connected to the rotating disk (53); and the input end of the rotating motor (51) is electrically connected to the control panel (8) via an electric wire.

3. A clamping mechanism for a cold heading machine as claimed in claim 1, characterized in that: The upper end surface of the workbench (1) is provided with four holes (9), each hole (9) is provided with a lower die seat (10) inside, and a cold heading cavity (101) for placing a workpiece is provided inside the upper portion of the lower die seat (10).

4. A clamping mechanism for a cold heading machine as claimed in claim 3, characterized in that: A telescopic spring (11) is installed between the inner bottom wall of the hole (9) and the outer bottom wall of the lower die base (10).

5. A clamping mechanism for a cold heading machine as claimed in claim 3, characterized in that: An L-shaped support plate (12) is arranged on one side above the workbench (1), and four upper die seats (13) are arranged below the L-shaped support plate (12), each of the upper die seats (13) corresponds to a lower die seat (10), and a cold heading head (14) of a different shape is arranged below each of the upper die seats (13).

6. A clamping mechanism for a cold heading machine as claimed in claim 5, characterized in that: Four hydraulic cylinders (15) are arranged above the L-shaped support plate (12), and a driving end of each hydraulic cylinder (15) passes through the bottom of the L-shaped support plate (12) and is connected to the upper die seat (13), and an input end of the hydraulic cylinder (15) is electrically connected to the control panel (8) via an electric wire.

7. A clamping mechanism for a cold heading machine as claimed in claim 5, characterized in that: The front side wall of the L-shaped support plate (12) is equipped with two cooling fans (16) by means of bolts, and the air outlets of the cooling fans (16) are all oriented toward the cold heading head (14). The rear side wall of the L-shaped support plate (12) is equipped with two driving motors (17), and the output ends of the driving motors (17) are all connected to the cooling fans (16) through the side wall of the L-shaped support plate (12), and the input ends of the driving motors (17) are electrically connected to the control panel (8) through electric wires.

8. A clamping mechanism for a cold heading machine according to any one of claims 1 to 7, characterized in that: The side wall of the workbench (1) is connected to a guide plate (18), the guide plate (18) is arranged to be inclined downward, and the bottom end of the guide plate (18) is connected to a material receiving box (19).

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