High lubrication wear-resistant cutting device of cold header

Abstract

The application relates to a high-lubrication wear-prevention cutting device of a cold header, which comprises a cutting installation plate, a push rod, a cutter installation base and a cutter assembly, the push rod is located between the cutting installation plate and the cutter installation base, the upper side of the push rod is provided with front and rear positioning plates and the lower side is provided with front and rear supporting plates, the left sides of the front and rear positioning plates, the front and rear supporting plates are fixedly connected to the cutting installation plate, the cutting installation plate is provided with front and rear oil outlets on the side facing the push rod, the front supporting plate is provided with a front lower oil outlet on the side contacting the push rod, the rear supporting plate is provided with a rear lower oil outlet on the side contacting the push rod, the cutting installation plate, the front supporting plate and the rear supporting plate are internally provided with an oil supply system for supplying oil to the front and rear oil outlets and the front and rear lower oil outlets, the application can effectively position and support the push rod and reduce the friction loss during the high-speed movement of the push rod.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cold header, in particular to a high-lubrication wear-resistant cutting device of cold header. BACKGROUND

[0002] The cold header is a forging forming equipment that thickens the top of the bar or wire at room temperature, and is a special equipment specially used for batch production of fasteners such as nuts and bolts. The cold header adopts the cold heading method to upset the head of the bolt and screw, which can minimize the cutting work and directly form the required shape and size, thereby saving a large amount of material and greatly improving the production efficiency and the mechanical strength of the upset parts.

[0003] The cold header usually comprises a rack, a feeding device, a cutting device, a conveying device, a ejection device and a cold heading device. The feeding device inputs raw materials such as iron wires, and cuts the raw materials into semi-finished products of the required length through the cutting device. The cut semi-finished products are conveyed under the action of the conveying device, and after being conveyed to each station, corresponding stamping is performed through the cold heading device. After stamping is completed, the semi-finished products of each station are ejected to the corresponding position through the ejection device, thereby facilitating the replacement of the stations by the conveying device.

[0004] The cutting device needs to work continuously at high speed with the ejection device and the cold heading device in the cold header, so the structural stability and wear resistance of the cutting device are particularly important. The existing patent application No. CN202020104530.1 discloses a high-lubrication wear-resistant cutting device of cold header. A push rod 7 on a cutter driving device of a machine tool passes between a cutting device mounting plate 1 and a cutter mounting seat 2, the push rod 7 extrudes a roller 302, and then pushes the entire cutter mounting seat 2 to eject outward to cut the wire 8 passing through a cutting port 402-1. When resetting, the push rod 7 is reset and separated from the roller 302, and the cutter mounting seat 2 is reset by the spring force of a cutting compression spring 603. The cutting port 402-1 on the cutter corresponds to the position of the feeding port of the machine tool to perform the next cutting operation. Through the above-mentioned prior art, it can be found that the push rod in the cutting device lacks effective positioning and supporting structure on both sides, which makes it difficult to ensure the stability of the structure. In addition, even if the positioning and supporting structure is added, the wear and tear caused by the continuous high-speed movement of the push rod also needs to be considered. Therefore, it is necessary to design a cutting device that can effectively position and support the push rod and has low friction loss during the high-speed movement of the push rod. SUMMARY

[0005] The present application discloses a high-lubrication wear-resistant cutting device of cold header, which can effectively position and support the push rod and reduce the friction loss during the high-speed movement of the push rod, thereby solving the above-mentioned problems in the prior art.

[0006] The technical solution of this invention is implemented as follows: A high-lubrication, wear-resistant cutting device for a cold heading machine includes a cutting mounting plate, a push rod, a cutter mounting seat, and a cutter assembly. The cutter assembly is installed on the right side of the cutter mounting seat. The push rod is located between the cutting mounting plate and the cutter mounting seat. A guide post is fixed on the left side of the cutter mounting seat. Two guide posts are provided and are respectively located on the upper and lower sides of the push rod. The cutting mounting plate has guide holes for the guide posts to pass through. A return spring is sleeved on the left side of the guide post on the cutting mounting plate. The upper side of the push rod has a front positioning plate and a rear positioning plate, and the lower side has a front support plate and a rear support plate. The front positioning plate... The front support plate is located on the front side of the guide post, and the rear positioning plate and the rear support plate are located on the rear side of the guide post. The left sides of the front positioning plate, the front support plate, the rear positioning plate, and the rear support plate are all fixedly connected to the cutting mounting plate. The cutting mounting plate has a front oil outlet and a rear oil outlet on the side facing the push rod. The front support plate has a front lower oil outlet on the side in contact with the push rod, and the rear support plate has a rear lower oil outlet on the side in contact with the push rod. The cutting mounting plate, the front support plate, and the rear support plate are provided with an oil supply system for supplying oil to the front oil outlet, the rear oil outlet, the front lower oil outlet, and the rear lower oil outlet.

[0007] Preferably, the oil supply system includes a forward oil hole and a rear oil hole located on the lower side of the cutting mounting plate. The cutting mounting plate has a front oil passage connecting the forward oil hole and the front oil outlet, and a rear oil passage connecting the rear oil hole and the rear oil outlet. The front support plate has a front branch oil passage connecting the front oil passage and the front lower oil outlet, and the rear support plate has a rear branch oil passage connecting the rear oil passage and the rear lower oil outlet.

[0008] Preferably, the cutting mounting plate has a side horizontal oil groove and a side vertical oil groove on the side facing the push rod. The side horizontal oil groove connects the front oil outlet and the rear oil outlet. The side vertical oil groove has at least five grooves, and at least two of them pass vertically through the side horizontal oil groove.

[0009] Preferably, the front support plate has a front lower oil groove connected to the front lower oil outlet along its length on the side that contacts the push rod, and the rear support plate has a rear lower oil groove connected to the rear lower oil outlet along its length on the side that contacts the push rod. Both the front support plate and the rear support plate also have a lower vertical oil groove.

[0010] Preferably, the push rod has a plurality of push rod side vertical oil grooves on the side facing the cutting mounting plate, and a plurality of push rod bottom vertical oil grooves on the side facing the front support plate and the rear support plate. The push rod has a plurality of first connecting oil channels inside for connecting some of the push rod side vertical oil grooves and push rod bottom vertical oil grooves.

[0011] Preferably, the push rod rear side is provided with a push rod oil inlet, the push rod upper side is provided with a push rod upper oil outlet below the rear positioning plate, the push rod is provided with a push rod oil inlet channel connecting the push rod oil inlet and the push rod upper oil outlet, and the push rod upper side is further provided with a push rod upper rear oil groove connected with the push rod upper oil outlet.

[0012] Preferably, the push rod rear side is provided with a push rod oil inlet, the push rod upper side is provided with a push rod oil outlet below the rear positioning plate, the push rod is provided with a push rod oil inlet channel connecting the push rod oil inlet and the push rod upper oil outlet, and the push rod upper side is further provided with a push rod upper rear oil groove connected with the push rod upper oil outlet.

[0013] Preferably, the cutting material mounting plate lower side is provided with an intermediate oil inlet, the rear support plate and the rear positioning plate are both provided with a wear-resistant plate on the side facing the cutter mounting seat, the wear-resistant plate is provided with a wear-resistant oil outlet and a plurality of wear-resistant vertical oil grooves below the wear-resistant oil outlet, and the cutting material mounting plate, the rear support plate and the rear positioning plate are provided with an intermediate oil channel connecting the wear-resistant oil outlet and the intermediate oil inlet.

[0014] Preferably, the cutter mounting seat is provided with a mounting seat rear side oil guide groove corresponding to the wear-resistant oil outlet and the wear-resistant vertical oil groove on the side facing the rear support plate and the rear positioning plate.

[0015] Preferably, the cutter mounting seat is provided with a mounting seat rear side oil guide groove corresponding to the wear-resistant oil outlet and the wear-resistant vertical oil groove on the side facing the rear support plate and the rear positioning plate.

[0016] In summary, the beneficial effects of the present application are:

[0017] 1. The present application is provided with a front positioning plate and a rear positioning plate on the upper side of the push rod and a front support plate and a rear support plate on the lower side, and the position of the push rod can be limited by the cutting material mounting plate, the front positioning plate, the rear positioning plate, the front support plate, the rear support plate and the cutter mounting seat, so that the push rod can remain stable during forward and backward movement. In addition, the present application can deliver lubricating oil to the front side oil outlet, the rear side oil outlet, the front lower oil outlet and the rear lower oil outlet of the oil supply system, so that the side of the cutting material mounting plate facing the push rod, the side of the front support plate and the rear support plate contacting the push rod can be filled with lubricating oil in real time, thereby reducing friction loss. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0019] Figure 1 Structure diagram of the push rod installed on the present application;

[0020] Figure 2 Structure diagram of the present application without guide column;

[0021] Figure 3 Structure diagram of the present application without guide column;

[0022] Figure 4 Structure diagram of the present application without guide column; Figure 3 Structure diagram of the present application without guide column;

[0023] Figure 5 Structure diagram of the present application without guide column; Figure 4 Structure diagram of the present application without guide column;

[0024] Figure 6 Structure diagram of the present application without guide column;

[0025] Figure 7 Structure diagram of the present application without guide column; Figure 6 Internal perspective view;

[0026] Figure 8 Structure diagram of the present application without guide column;

[0027] Figure 9 Structure diagram of the present application without guide column; Figure 8 Internal perspective view;

[0028] Figure 10 Structure diagram of the present application without guide column;

[0029] Figure 11 Structure diagram of the present application without guide column; Figure 10 Internal perspective view;

[0030] Figure 12 Structure diagram of the present application without guide column; Figure 10 Structure diagram of the present application without guide column;

[0031] Figure 13 Structure diagram of the present application without guide column; Figure 12 Internal perspective view;

[0032] Figure 14 Structure diagram of the present application without guide column;

[0033] Figure 15 Structure diagram of the present application without guide column; Figure 14 Structure diagram of the present application without guide column.

[0034] In the diagram: 1. Cutting mounting plate; 10. Guide hole; 11. Front oil outlet; 12. Rear oil outlet; 13. Inlet oil hole; 14. Rear oil inlet; 15. Front oil passage; 16. Rear oil passage; 17. Side horizontal oil groove; 18. Side vertical oil groove; 19. Middle oil inlet; 2. Push rod; 21. Push rod side vertical oil groove; 22. Push rod lower vertical oil groove; 23. Push rod oil inlet; 24. Push rod upper oil outlet; 25. Push rod oil passage; 26. Push rod upper rear oil groove; 27. Second connecting oil passage; 28. Curved abutment plate; 29. ​​First connecting oil passage; 3. Connecting shaft; 31. 32. Connecting shaft oil outlet; 4. Connecting shaft oil passage; 5. Cutter mounting base; 6. Cutter assembly; 7. Guide post; 8. Return spring; 9. Rear oil guide groove of mounting base; 10. Rotary shaft; 11. Front positioning plate; 2. Rear positioning plate; 12. Wear-resistant plate; 13. Intermediate oil passage; 14. Wear-resistant oil outlet; 15. Wear-resistant vertical oil groove; 16. Front support plate; 17. Front lower oil outlet; 18. Front support oil passage; 19. Front lower oil groove; 20. Lower vertical oil groove; 10. Rear support plate; 11. Rear lower oil outlet; 12. Rear support oil passage; 13. Rear lower oil groove; 10. Tie rod. Detailed Implementation

[0035] The following will refer to the appendices in the embodiments of the present invention. Figures 1-15 The technical solutions in the embodiments of the present invention are clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0036] Example:

[0037] like Figures 1 to 5 As shown, this invention discloses a high-lubrication, wear-resistant cutting device for a cold heading machine, comprising a cutting mounting plate 1, a push rod 2, a cutter mounting base 4, and a cutter assembly 40. The cutter assembly 40 is mounted on the right side of the cutter mounting base 4, and the push rod 2 is located between the cutting mounting plate 1 and the cutter mounting base 4. Figure 1 As shown, a guide post 41 is fixed to the left side of the cutter mounting base 4. Two guide posts 41 are provided and located on the upper and lower sides of the push rod 2, respectively. A guide hole 10 is provided on the cutting mounting plate 1 for the guide posts 41 to pass through. A return spring 42 is sleeved on the left side of the guide post 41 on the cutting mounting plate 1. The return spring 42 is used to pull the cutter mounting base 4 back to the left. Figures 2 to 5As shown, in order to further position the push rod 2, the front positioning plate 5 and the rear positioning plate 6 are arranged on the upper side of the push rod 2, and the front supporting plate 8 and the rear supporting plate 9 are arranged on the lower side of the push rod 2, wherein the front positioning plate 5 and the front supporting plate 8 are located on the front side of the guide column 41, and the rear positioning plate 6 and the rear supporting plate 9 are located on the rear side of the guide column 41, and the left sides of the front positioning plate 5, the front supporting plate 8, the rear positioning plate 6 and the rear supporting plate 9 are fixedly connected to the cutting material mounting plate 1, and it should be noted that when the present application is installed on the cold header, as shown in Figure 14 As shown, the right sides of the front positioning plate 5, the front supporting plate 8, the rear positioning plate 6 and the rear supporting plate 9 are fixed to the rack of the cold header, and in order to reduce the loss during the high-speed forward and backward movement of the push rod 2, as shown in Figure 6 As shown, the cutting material mounting plate 1 is provided with a front oil outlet 11 and a rear oil outlet 12 on the side facing the push rod 2, the front supporting plate 8 is provided with a front lower oil outlet 81 on the side in contact with the push rod 2, and the rear supporting plate 9 is provided with a rear lower oil outlet 91 on the side in contact with the push rod 2, and as shown in Figure 7 As shown, the cutting material mounting plate 1, the front supporting plate 8 and the rear supporting plate 9 are provided with an oil supply system for supplying oil to the front oil outlet 11, the rear oil outlet 12, the front lower oil outlet 81 and the rear lower oil outlet 91. Since the front supporting plate 8 and the rear supporting plate 9 need to bear the weight of the push rod 2, the wear between the push rod 2 and the front supporting plate 8 and the rear supporting plate 9 will be greater than the wear between the push rod 2 and the front positioning plate 5 and the rear positioning plate 6 during the forward and backward movement of the push rod 2, and in addition, since the cutting knife mounting seat 4 will press the push rod 2 tightly on the cutting material mounting plate 1 by the action of the return spring 42, the wear between the push rod 2 and the cutting material mounting plate 1 cannot be ignored, so the first thing to do is to provide lubricating oil between the cutting material mounting plate 1 and the push rod 2, and between the push rod 2 and the front supporting plate 8 and the rear supporting plate 9, and specifically, the present application transports lubricating oil to the front oil outlet 11, the rear oil outlet 12, the front lower oil outlet 81 and the rear lower oil outlet 91 through the oil supply system, so that the side of the cutting material mounting plate 1 facing the push rod 2, the side of the front supporting plate 8 and the rear supporting plate 9 in contact with the push rod 2 can be filled with lubricating oil in real time, thereby reducing the friction loss.

[0038] As shown in Figure 14 and 15 As shown, the structure diagram of the present application installed on the cold header, the push rod 2 is driven by the pull rod 100, and during the high-speed forward and backward movement of the push rod 2, the cutting knife mounting seat 4 is driven to move left and right by the return spring 42, so that the wire material entering the cold header is cut off by the cutting knife assembly 40.

[0039] As shown in Figure 5 and Figure 7As shown, the oil supply system includes a forward oil inlet 13 and a rear oil inlet 14 located on the lower side of the cutting mounting plate 1. A front oil passage 15 connecting the forward oil inlet 13 and the front oil outlet 11, and a rear oil passage 16 connecting the rear oil inlet 14 and the rear oil outlet 12 are provided within the cutting mounting plate 1. A front support oil passage 82 connecting the front oil passage 15 and the front lower oil outlet 81 is provided on the front support plate 8. A rear support oil passage 16 connecting the rear oil outlet 14 and the rear oil outlet 12 is provided on the rear support plate 9. The rear branch oil passage 92 of the oil passage 16 and the rear lower oil outlet 91, the front oil hole 13 and the rear oil inlet 14 are used to connect to the external oil pipe. Lubricating oil continuously enters the front oil passage 15 and the rear oil passage 16 from the front oil hole 13 and the rear oil inlet 14. Part of the lubricating oil flows out from the front oil outlet 11 and the rear oil outlet 12, and the other part enters the front branch oil passage 82 and the rear branch oil passage 92 and flows out from the front lower oil outlet 81 and the rear lower oil outlet 91.

[0040] like Figure 6 As shown, since the push rod 2 is attached to the cutting mounting plate 1, in order to facilitate the flow of lubricating oil from the front oil outlet 11 and the rear oil outlet 12 and to quickly cover the entire space between the push rod 2 and the cutting mounting plate 1, the cutting mounting plate 1 has a side horizontal oil groove 17 and a side vertical oil groove 18 on the side facing the push rod 2. The side horizontal oil groove 17 connects the front oil outlet 11 and the rear oil outlet 12, and the side vertical oil groove 18 has at least five grooves, with at least two of them passing vertically through the side horizontal oil groove 17. When lubricating oil flows out of the front oil outlet 11 and the rear oil outlet 12, the lubricating oil will quickly fill the side horizontal oil groove 17 and the side vertical oil groove 18 that pass vertically through the side horizontal oil groove 17. Then, as the push rod 2 moves back and forth continuously, it will cover the entire space between the push rod 2 and the cutting mounting plate 1.

[0041] Furthermore, the front support plate 8 has a front lower oil groove 83 connected to the front lower oil outlet 81 along its length on the side that contacts the push rod 2, and the rear support plate 9 has a rear lower oil groove 93 connected to the rear lower oil outlet 91 along its length on the side that contacts the push rod 2. Both the front support plate 8 and the rear support plate 9 also have a lower vertical oil groove 89. Similarly, when lubricating oil flows out of the front lower oil outlet 81 and the rear lower oil outlet 91, the front lower oil groove 83 and the rear lower oil groove 93 are also filled with lubricating oil. During the stroke of the push rod 2 moving back and forth, the lubricating oil covers the space between the push rod 2 and the front support plate 8 and the rear support plate 9. The lower vertical oil groove 89 can also store some of the lubricating oil that flows to this position, thereby further accelerating the coverage of the lubricating oil between the push rod 2 and the front support plate 8 and the rear support plate 9.

[0042] like Figure 12As shown, the push rod 2 has several vertical oil grooves 21 on its side facing the cutting mounting plate 1. These grooves allow lubricating oil to flow in, enabling the lubricating oil to quickly cover the entire push rod 2 and the cutting mounting plate 1. Additionally, the push rod 2 also has several lower vertical oil grooves 22 on its side facing the front support plate 8 and the rear support plate 9. These grooves also allow lubricating oil to flow in, enabling the lubricating oil to quickly cover the area between the push rod 2 and the front and rear support plates 8 and 9. Further, as... Figure 11 and 13 As shown, several first connecting oil channels 29 are provided inside the push rod 2 to connect part of the push rod side vertical oil groove 21 and the push rod bottom vertical oil groove 22. The first connecting oil channels 29 can allow some of the lubricating oil in the push rod side vertical oil groove 21 to flow to the push rod bottom vertical oil groove 22, thereby further improving the lubrication effect between the push rod 2 and the front support plate 8 and the rear support plate 9.

[0043] like Figure 10 and 11 As shown, a push rod oil inlet 23 is provided on the rear side of the push rod 2, while an upper push rod oil outlet 24 is provided on the upper side of the push rod 2, located below the rear positioning plate 6. An oil passage 25 is provided inside the push rod 2, connecting the oil inlet 23 and the upper push rod oil outlet 24. Furthermore, an upper push rod rear oil groove 26 is provided on the upper side of the push rod 2, connected to the upper push rod oil outlet 24. Next, a second connecting oil passage 27 is provided inside the push rod 2, connecting the upper push rod rear oil groove 26 and two of the push rod side vertical oil grooves 21. Oil port 23 is used to connect to an external oil pipe. Lubricating oil enters the oil passage 25 of the push rod from the oil inlet 23 and flows out from the oil outlet 24 on the push rod, filling the rear oil groove 26 on the push rod. As the push rod 2 moves, the lubricating oil fills the space between the push rod 2 and the rear positioning plate 6 and the front positioning plate 5, so that the upper side of the push rod 2 can also be lubricated. In addition, the lubricating oil in the rear oil groove 26 on the push rod will also flow into two of the vertical oil grooves 21 on the push rod side through the second connecting oil passage 27 to lubricate the space between the push rod 2 and the cutting mounting plate 1.

[0044] Furthermore, a connecting shaft 3 is fixedly connected to the rear side of the push rod 2. The outer wall of the connecting shaft 3 is provided with a connecting shaft oil outlet 31, and the connecting shaft 3 is provided with a connecting shaft oil passage 32 that connects the push rod oil inlet passage 25 and the connecting shaft oil outlet 31. The pull rod 100 of the cold heading machine is rotatably connected to the connecting shaft 3. Some of the lubricating oil located in the push rod oil inlet passage 25 will flow out from the connecting shaft oil outlet 31 through the connecting shaft oil passage 32 to lubricate the rotating structure between the pull rod 100 and the connecting shaft 3.

[0045] The front support plate 8, front positioning plate 5, rear support plate 9, and rear positioning plate 6 of the present invention have the function of limiting the cutting blade mounting seat 4, so that the cutting blade mounting seat 4 can move stably left and right. However, due to the shape of the push rod 2, when the push rod 2 moves backward and pushes the cutting blade mounting seat 4 forward, the pressure exerted on the rear support plate 9 and rear positioning plate 6 is greater than that on the front support plate 8 and front positioning plate 5. Therefore, the rear support plate 9 and rear positioning plate 6 are more prone to wear. In order to solve this problem, such as Figure 5 , Figure 8 as well as Figure 9 As shown, a central oil inlet 19 is provided on the lower side of the cutting mounting plate 1. Both the rear support plate 9 and the rear positioning plate 6 have wear-resistant plates 7 on the side facing the cutter mounting base 4. Wear-resistant oil outlets 71 and several wear-resistant vertical oil grooves 72 located below the wear-resistant oil outlets 71 are provided on the wear-resistant plates 7. The cutting mounting plate 1, the rear support plate 9, and the rear positioning plate 6 have a central oil passage 70 connecting the wear-resistant oil outlet 71 and the central oil inlet 19. Through the setting of the wear-resistant plates 7 and the central oil inlet 19, lubricating oil is introduced into the central oil passage 70 and then flows out through the wear-resistant oil outlet 71 to increase the lubrication between the cutter mounting base 4 and the wear-resistant plates 7, thereby reducing wear. In order to enable the lubricating oil to cover the space between the cutter mounting base 4 and the wear-resistant plate 7 more quickly, the cutter mounting base 4 has a rear oil guide groove 43 on the side facing the rear support plate 9 and the rear positioning plate 6, which corresponds to the wear-resistant oil outlet 71 and the wear-resistant vertical oil groove 72.

[0046] like Figure 4 and Figure 5 As shown, a rotating shaft 44 is rotatably connected to the middle of the cutter mounting base 4, and the push rod 2 includes a curved abutment plate 28 for contacting the rotating shaft 44. The setting of the rotating shaft 44 can also reduce the wear of the curved abutment plate 28.

[0047] Finally, it should be noted that, in order to more clearly show the internal oil passages, the threaded holes for interconnection on the cutting mounting plate, front positioning plate, rear positioning plate, front support plate, rear support plate, and wear-resistant plate in the accompanying drawings of this invention have been omitted. Those skilled in the art should be able to avoid the oil passages by drilling threaded holes and fixing the above structure with bolts using common knowledge and conventional technical means.

[0048] It should also be noted that the terms used in this invention, such as "front," "rear," "vertical," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0049] The above merely provides the preferred embodiment of the present application, and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high-lubrication, wear-resistant cutting device for a cold heading machine, comprising a cutting mounting plate, a push rod, a cutter mounting seat, and a cutter assembly, wherein the cutter assembly is mounted on the right side of the cutter mounting seat, the push rod is located between the cutting mounting plate and the cutter mounting seat, a guide post is fixed on the left side of the cutter mounting seat, two guide posts are provided and respectively located on the upper and lower sides of the push rod, the cutting mounting plate is provided with guide holes for the guide posts to pass through, and a return spring is sleeved on the left side of the cutter mounting plate for the guide posts, characterized in that: The upper side of the push rod is provided with front and rear positioning plates and the lower side is provided with front and rear support plates, the front and rear positioning plates are located on the front side of the guide column, the rear positioning plate and the rear support plate are located on the rear side of the guide column, the left side of the front positioning plate, the front support plate, the rear positioning plate and the rear support plate is fixedly connected to the cutting material mounting plate, the cutting material mounting plate is provided with front and rear oil outlets on the side facing the push rod, the front support plate is provided with a front lower oil outlet on the side facing the push rod, the rear support plate is provided with a rear lower oil outlet on the side facing the push rod, the cutting material mounting plate, the front support plate and the rear support plate are provided with an oil supply system for supplying oil to the front and rear oil outlets, the front lower oil outlet and the rear lower oil outlet, the rear side of the push rod is provided with a push rod oil inlet, the upper side of the push rod is provided with a push rod upper oil outlet below the rear positioning plate, the push rod is provided with a push rod oil inlet channel connecting the push rod oil inlet and the push rod upper oil outlet, the upper side of the push rod is further provided with a push rod rear upper oil groove connected to the push rod upper oil outlet, the push rod is provided with a second oil connection channel connecting the push rod rear upper oil groove and two of the push rod side vertical oil grooves, the lower side of the cutting material mounting plate is provided with a middle oil inlet, the rear support plate and the rear positioning plate are provided with wear-resistant plates on the side facing the cutting knife mounting seat, the wear-resistant plate is provided with a wear-resistant oil outlet and a plurality of wear-resistant vertical oil grooves below the wear-resistant oil outlet, and the cutting material mounting plate, the rear support plate and the rear positioning plate are provided with a middle oil channel connecting the wear-resistant oil outlet and the middle oil inlet.

2. A high lubrication wear resistant cut-off device for a cold header as defined in claim 1, wherein: The oil supply system comprises front and rear oil inlets on the lower side of the cutting material mounting plate, the cutting material mounting plate is provided with a front oil channel connecting the front oil inlet and the front oil outlet and a rear oil channel connecting the rear oil inlet and the rear oil outlet, the front support plate is provided with a front support oil channel connecting the front oil channel and the front lower oil outlet, and the rear support plate is provided with a rear support oil channel connecting the rear oil channel and the rear lower oil outlet.

3. A high lubrication wear resistant cut-off device for a cold header as defined in claim 2, wherein: The cutting material mounting plate is provided with a side horizontal oil groove and a side vertical oil groove on the side facing the push rod, the side horizontal oil groove connects the front and rear oil outlets, and the side vertical oil groove is provided with at least five and at least two vertical through the side horizontal oil groove.

4. A high lubrication wear resistant cut-off device for a cold header as defined in claim 3, wherein: The front support plate is provided with a front lower oil groove connecting the front lower oil outlet on the side facing the push rod along the length direction, the rear support plate is provided with a rear lower oil groove connecting the rear lower oil outlet on the side facing the push rod along the length direction, and the front support plate and the rear support plate are further provided with a lower vertical oil groove.

5. A high lubrication wear resistant cut-off device for a cold header as defined in claim 4 wherein: The push rod is provided with a plurality of push rod side vertical oil grooves on the side facing the cutting material mounting plate, the push rod is provided with a plurality of push rod lower vertical oil grooves on the side facing the front and rear support plates, and the push rod is provided with a plurality of first oil connection channels for connecting part of the push rod side vertical oil grooves and the push rod lower vertical oil grooves.

6. A high lubrication wear resistant cut-off device for a cold header as defined in claim 1, wherein: The push rod is fixedly connected with a connecting shaft on the rear side, the connecting shaft is provided with a connecting shaft oil outlet on the outer side wall, and the connecting shaft is provided with a connecting shaft oil channel connecting the push rod oil inlet channel and the connecting shaft oil outlet.

7. A high lubrication wear resistant cut-off device for a cold header as defined in claim 1, wherein: The cutter mounting seat is provided with a mounting seat rear side oil guide groove corresponding to the wear-resistant oil outlet and the wear-resistant vertical oil groove on the side facing the rear support plate and the rear positioning plate.

8. A high lubrication wear resistant cut-off device for a cold header as defined in claim 1, wherein: A rotating shaft is rotatably connected to the middle part of the cutter mounting seat, and the push rod comprises a curved surface resisting plate for contacting the rotating shaft.

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