Liquid die forging punch with lubricating channel and using method of liquid die forging punch

Abstract

The invention discloses a liquid die forging punch with a lubricating channel and a using method of the liquid die forging punch, and relates to the technical field of liquid die forging punchs.The liquid die forging punch comprises a die holder, a die forging punch assembly is arranged below the die holder, and the die forging punch assembly comprises an oil base and a punch; the punch is composed of an abutting protrusion, a connecting base and a die head protrusion. The oil base and the punch which can move relatively are adopted, in the moving process, the alignment end positions of the oil base and the punch can be switched in the single-time reciprocating movement process through cooperation of the rotary driving piece and the relative linear driving piece, when the mold head protrusion aligns to the mold head protrusion cavity, an oil lubricating cavity can be formed, and the oil lubricating effect is improved. The lubricating oil cavity is filled with the lubricating oil, the lubricating oil is attached to the outer wall of the punch base, the lubricating oil attaching mode is not limited by the shape of the outer wall of the punch base and adapts to different regular contours of the outer wall of the punch base, and the situation that the punch and a manufactured part cannot be separated is further avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of liquid die forging punch, and particularly relates to a liquid die forging punch with a lubricating channel and a use method thereof. BACKGROUND

[0002] Liquid die forging is also called extrusion casting and continuous casting and forging. It is a method of pouring a certain amount of liquid metal into a mold cavity coated with lubricant and continuously applying mechanical static pressure to make the hard shell that has solidified plastically deform, so that the metal crystallizes and solidifies under pressure and forcibly eliminates the shrinkage cavity and shrinkage caused by solidification, so as to obtain a liquid die forging product without casting defects. This method is usually called liquid die forging.

[0003] In order to facilitate the separation of the punch and the workpiece after plastic forming, the surface of the punch is lubricated with lubricating oil. The lubricating method of the liquid die forging punch in the prior art refers to the application number "202222967241.6" of "a liquid die forging punch with a lubricating channel", which comprises a connecting seat, a feed inlet is fixedly connected to the upper surface of the connecting seat, a metal liquid tank is arranged in the connecting seat, a discharge cylinder is fixedly connected to the lower surface of the connecting seat, and a punch is fixedly connected to the lower surface of the discharge cylinder; a moving ring is fixedly connected with a fixed rod in the interior of the moving ring, one end of the fixed rod away from the moving ring is fixedly connected with a fixed ring, and the upper surface of the fixed ring is movably connected with an extension rod; an arc plate one is connected with an arc plate two penetrating through the interior of the arc plate one, one end of the arc plate two close to the arc plate one is fixedly connected with a spring; an oil tank is fixedly connected with an oil inlet on the upper surface of the oil tank, and an oil guide pipe is fixedly connected to the lower surface of the oil tank.

[0004] The above-mentioned prior art cannot adhere lubricating oil to the punch with special-shaped outer wall. Specifically, some special punch outer walls, such as punch outer walls with uneven surfaces, have the following problems during the lubricating oil adhesion process: first, the movement of the arc plate cannot be achieved, so that the lubricating oil cannot be evenly applied; second, the lubricating oil cannot flow downward due to the uneven surface of the punch outer wall, resulting in poor lubrication effect of the punch. Therefore, the punch and the workpiece cannot be separated in some cases. SUMMARY

[0005] The purpose of the present application is to solve the problem that the prior art cannot adhere lubricating oil to the punch with special-shaped outer wall, resulting in the separation of the punch and the workpiece. A liquid die forging punch with a lubricating channel and a use method thereof are provided.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions: A liquid die forging punch with lubricating channel, comprising a die holder, a die forging punch assembly is arranged below the die holder, the die forging punch assembly comprises an oil seat and a punch; The punch is composed of a contact protrusion, a connecting seat and a die head protrusion, wherein the connecting seat is connected between the contact protrusion and the die head protrusion; Two ends of the oil seat are respectively provided with a contact protrusion cavity and a die head protrusion cavity corresponding to the contact protrusion and the die head protrusion; an oil storage cavity is arranged in the oil seat, and the oil storage cavity and the die head protrusion cavity are communicated; The oil seat moves relative to the punch, and the side walls of the oil seat and the punch are respectively provided with a rotating driving member, the rotating driving member drives the oil seat and the punch to rotate, and switches the state that the contact protrusion is aligned with the contact protrusion cavity or the die head protrusion is aligned with the die head protrusion cavity.

[0007] Preferably, the die head protrusion comprises: A punch seat, which forms an oil lubricating cavity between the punch seat and the die head protrusion cavity; A contact seat is located between the punch seat and the connecting seat, and the outer diameter of the contact seat is greater than the outer diameter of the punch seat and the inner diameter of the die head protrusion cavity; and the side wall of the contact seat is provided with a contact ring, and a plurality of lubricating liquid guide ports are arranged on the contact ring.

[0008] Preferably, a sealing ring is slid on the notch of the die head protrusion cavity, and the sealing ring is aligned with the contact ring.

[0009] Preferably, the oil storage cavity comprises a liquid storage cavity A, a liquid storage cavity B and a liquid transfer cavity; The liquid storage cavity A and the liquid storage cavity B are communicated through a guide port A, and an annular liquid inlet is arranged on the side of the liquid storage cavity A, the liquid inlet is located in the oil lubricating cavity, and is aligned with the lubricating liquid guide port; The liquid storage cavity B and the liquid transfer cavity are communicated through a guide port B; The liquid transfer cavity and the die head protrusion cavity are communicated.

[0010] Preferably, a gravity valve is arranged on the guide port A; A pressure valve is arranged at the liquid outlet end of the liquid transfer cavity.

[0011] Preferably, a relative linear driving member is arranged between the side wall of the oil seat and the side wall of the punch, and the relative linear driving member comprises: A moving seat vertically moves relative to the side wall of the oil seat and the punch; Connecting rods, two groups, one group of the connecting rods is connected to the oil seat side wall and the moving seat side wall, the other group of the connecting rods is connected to the punch side wall and the moving seat side wall.

[0012] Preferably, the mold seat is provided with a vertical driving member for driving the vertical linearity of the moving seat. And the mold seat is also provided with a horizontal driving member, the driving end of the horizontal driving member is connected with a sliding seat, and the vertical driving member is installed on the sliding seat.

[0013] Preferably, the rotating driving member comprises: A driving shaft in a prism structure is arranged at the center of the side wall of the oil seat and the punch, and a cylindrical connecting shaft is arranged at the end of the driving shaft, and the end of the connecting rod (71) away from the moving seat (70) is rotatably sleeved on the outer wall of the cylindrical connecting shaft. A sliding rail seat is composed of a driving shaft sliding rail and a connecting arm, the connecting arm is connected between the driving shaft sliding rails, the driving shaft sliding rail is used for the sliding of the driving shaft, the driving shaft sliding rail comprises a sliding port A, a sliding port B and a sliding port C, the width of the driving shaft is the same as the inner diameter of the sliding port A and the inner diameter of the sliding port C, and the inner diameter of the sliding port B is greater than the width of the driving shaft. A gear set is composed of a gear and a driving shaft sleeve fixed together, the sliding rail seat is also provided with a sliding port D for the sliding of the driving shaft sleeve, the driving shaft sleeve is provided with an embedded groove corresponding to the driving shaft, and the driving shaft sleeve and the driving shaft are coaxially arranged. An adjusting rack is connected to the sliding rail seat and engaged with the gear.

[0014] Preferably, the adjusting rack comprises: A fixed rack is fixed to the sliding rail seat; A movable rack horizontally slides on the sliding rail seat; The movable rack is connected to a limiting plate through an inclined driving member, the length of the limiting plate is the same as the length of the movable rack, and the limiting plate horizontally slides in the sliding port B.

[0015] A method for using a liquid die forging punch with a lubricating channel, applying a liquid die forging punch with a lubricating channel, and applying lubricating oil to the punch comprises the following steps: S1, the die forging punch assembly moves down: the moving seat is driven to move down by the vertical driving member, so that the die forging punch assembly moves down relative to the mold seat; S2, switch oil seat and punch alignment end position: horizontal drive drive vertical drive and mobile seat relative movement, oil seat and punch move to the end of the opposite; in the flat drive drive vertical drive and mobile seat move away from each other again, at the same time, the moving rack to the direction of the fixed rack moves, through the gear and the increased adjustment rack meshing, causing the drive shaft to disengage from the slip B, the mold head protrusion alignment the mold head protrusion cavity, form oil chamber, and open the pressure valve; S3, mold head protrusion lubricating oil increasing process: lubricating oil from the liquid storage cavity B to the liquid transfer cavity, so as to enter into the oil chamber, complete the lubricating oil adhesion of the mold head protrusion surface, the lubricating liquid in the oil chamber enters the liquid storage cavity A through the lubricating liquid guide port and the liquid inlet; S4, switch oil seat and punch alignment end position again: horizontal drive drive vertical drive and mobile seat relative movement, oil seat and punch move to the end of the opposite; in the flat drive drive vertical drive and mobile seat move away from each other again, at the same time, the moving rack to the direction of the fixed rack moves, through the gear and the increased adjustment rack meshing, causing the drive shaft to disengage from the slip B, the mold head protrusion alignment the mold head protrusion cavity; At the same time, in the process, when the liquid storage cavity A is located above the liquid storage cavity B, the gravity valve is opened, and the lubricating liquid in the liquid storage cavity A flows to the liquid storage cavity B; S5, die forging punch assembly reset: through the vertical drive drive the mobile seat up, causing the die forging punch assembly to move up relative to the die holder, until the die holder, oil seat and punch three mutually adhere, and then move down with the die holder, the die forging punch assembly moves down with the die holder.

[0016] The beneficial effects of the present application are: In the present application, the oil seat and the punch can be moved relatively, and in the moving process, the rotation drive element and the relative linear drive element can be matched to switch the alignment end position of the oil seat and the punch in a single reciprocating movement. When the mold head protrusion aligns with the mold head protrusion cavity, an oil chamber is formed, and the oil chamber is filled with lubricating oil to realize the adhesion of lubricating oil to the outer wall of the punch holder. The lubricating oil adhesion method is not limited by the shape of the outer wall of the punch holder, and is suitable for different regular profiles of the punch holder. Furthermore, the situation that the punch and the workpiece part cannot be separated is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A structure diagram of a liquid die forging punch with lubricating channel is provided for the present application; Figure 2 A structure diagram of a die forging punch assembly in a liquid die forging punch with lubricating channel is provided for the present application; Figure 3 An internal structure diagram of a die forging punch assembly in a liquid die forging punch with lubricating channel is provided for the present application; Figure 4 A structure diagram of relative linear driving element and rotating driving element in a liquid die forging punch with lubricating channels according to the present application; Figure 5 A structure diagram of rotating driving element in a liquid die forging punch with lubricating channels according to the present application; Figure 6 A structure diagram of driving shaft and gear set in a liquid die forging punch with lubricating channels according to the present application; Figure 7 A connection structure diagram of movable rack and limiting plate in a liquid die forging punch with lubricating channels according to the present application; Figure 8 An internal diagram of oil seat and punch in a liquid die forging punch with lubricating channels according to the present application; Figure 9 A structure diagram of die head protrusion cavity and die head protrusion connection in a liquid die forging punch with lubricating channels according to the present application, forming an oil lubrication cavity; Figure 10 A structure diagram of die head protrusion cavity and die head protrusion separation state in a liquid die forging punch with lubricating channels according to the present application; Figure 11 A state diagram of oil seat and punch relative end switching, and abutting protrusion cavity abutting protrusion connection in a liquid die forging punch with lubricating channels according to the present application; Figure 12 A state diagram of oil seat and punch relative end switching, and abutting protrusion cavity abutting protrusion connection in a liquid die forging punch with lubricating channels according to the present application.

[0018] In the figure: 1, die seat; 2, oil seat; 20, abutting protrusion cavity; 21, die head protrusion cavity; 210, sealing ring; 22, oil storage cavity; 220, liquid storage cavity A; 2200, liquid inlet; 221, liquid storage cavity B; 222, liquid transfer cavity; 223, flow guide port A; 224, flow guide port B; 3, punch; 30, abutting protrusion; 31, connecting seat; 32, die head protrusion; 320, punch seat; 321, abutting seat; 3210, abutting ring; 3211, lubricating liquid flow guide port; 4, oil lubrication cavity; 5, gravity valve; 6, pressure valve; 7, relative linear driving element; 70, moving seat; 71, connecting rod; 8, rotating driving element; 80, driving shaft; 81, slide rail seat; 810, driving shaft slide rail; 8100, slide port A; 8101, slide port B; 8102, slide port C; 8103, slide port D; 811, connecting arm; 82, gear set; 820, gear; 821, driving shaft sleeve; 8210, embedded groove; 83, adjusting rack; 830, fixed rack; 831, movable rack; 9, limiting plate. DETAILED DESCRIPTION

[0019] Referring to Figures 1-12 A liquid die forging punch with lubrication channel and its using method, including die seat 1, die seat 1 is connected with linear components such as cylinder in prior art, and is used for installing die forging punch assembly, and the synchronous linear movement of die forging punch is caused by the transmission of die seat 1 under the driving of linear components such as cylinder.

[0020] Referring to Figures 8-12 Die forging punch assembly is composed of oil seat 2 and punch 3, and the punch 3 is located directly below the die seat 1, further, the oil seat 2 is located above the punch 3, wherein the oil seat 2 provides lubricating oil for the punch 3.

[0021] Wherein, the punch 3 is composed of abutting protrusion 30, connecting seat 31 and die head protrusion 32, the connecting seat 31 is connected between the abutting protrusion 30 and the die head protrusion 32. It should be noted that the lengths of the abutting protrusion 30 and the die head protrusion 32 are the same, which refers to the distance between the abutting protrusion 30 and the die head protrusion 32 and the outer wall of the connecting seat 31.

[0022] Further, referring to Figures 8-12 The die head protrusion 32 is composed of punch seat 320 and abutting seat 321, wherein the outer wall of the punch seat 320 is the outer wall profile to be formed by the die forging punch, and the abutting seat 321 is used to connect the punch seat 320 and the connecting seat 31.

[0023] Wherein, the oil seat 2 is provided with abutting protrusion cavity 20 and die head protrusion cavity 21 corresponding to the abutting protrusion 30 and the die head protrusion 32 at both ends respectively. Further, the inner wall of the abutting protrusion cavity 20 is the same as the outer wall of the abutting protrusion 30, and the abutting protrusion cavity 20 and the abutting protrusion 30 are attached.

[0024] The outer diameter of the abutting seat 321 is greater than the outer diameter of the punch seat 320 and the inner diameter of the die head protrusion cavity 21.

[0025] When the punch seat 320 is aligned with the die head protrusion cavity 21, the lubricating oil cavity 4 is formed between the punch seat 320 and the die head protrusion cavity 21, the lubricating oil cavity 4 is used to store lubricating oil, so that the lubricating oil is fully contacted with the outer wall of the punch seat 320, is not limited by the shape of the outer wall of the punch seat 320, and makes the lubricating oil fully adhere to the outer wall of the punch seat 320.

[0026] Wherein, the oil seat 2 is provided with lubricating oil channel, and the channel is oil storage cavity 22. The oil storage cavity 22 is composed of liquid storage cavity A 220, liquid storage cavity B 221 and liquid transfer cavity 222.

[0027] The storage cavity A 220 and the storage cavity B 221 are communicated through the flow guide port A 223, and further, the flow guide port A 223 is provided with a gravity valve 5, wherein the gravity valve 5 is composed of a connecting pipe and a gravity blocking piece sliding in the connecting pipe, referring to Figures 8-12 The gravity blocking piece is composed of a work-type seat, wherein the work-type seat comprises a lower end disc, an upper end disc and a middle pipe, wherein the lower end disc is provided with a flow guide hole, and the outer diameter of the middle pipe is smaller than the inner diameter of the connecting pipe, so that a flow guide channel is formed between the middle pipe and the connecting pipe, the outer diameter of the middle pipe and the lower end disc and the upper end disc is greater than the outer diameter of the connecting pipe and smaller than the inner diameter of the flow guide port A 223, and the flow guide hole is located at the position of the flow guide channel. In addition, in order to stabilize the sliding position of the gravity blocking piece, the outer wall of the middle pipe is further provided with an arc-shaped protrusion, wherein the arc-shaped protrusion is in contact with the inner wall of the connecting pipe.

[0028] When the storage cavity A 220 is located below the storage cavity B 221, the upper end disc is attached to the upper end of the connecting pipe under the action of gravity, so that the storage cavity A 220 and the storage cavity B 221 are not communicated; when the storage cavity B 221 is located below the storage cavity A 220, the upper end disc is separated from the end of the connecting pipe under the action of gravity, so that the storage cavity A 220 and the storage cavity B 221 are communicated through the flow guide hole, the flow guide channel and the flow guide port A 223.

[0029] The side of the storage cavity A 220 is provided with an annular liquid inlet 2200, and the liquid inlet 2200 is located in the oil lubricating cavity 4, so that the lubricating liquid in the oil lubricating cavity 4 flows to the storage cavity A 220 through the liquid inlet 2200.

[0030] In the present application, the structure for transferring the lubricating oil in the oil lubricating cavity 4 to the liquid inlet 2200 during the forming process of the oil lubricating cavity 4 is also disclosed, which is as follows: first, the side wall of the abutting seat 321 is provided with an abutting ring 3210, and the abutting ring 3210 is provided with a plurality of lubricating liquid flow guide ports 3211; second, the groove of the mold head protruding cavity 21 is slidingly provided with a sealing ring 210, and the sealing ring 210 is located at the abutting ring 3210. It should be noted that the inner wall of the groove of the mold head protruding cavity 21 is provided with an annular groove for accommodating the sealing ring 210, and the inner side wall of the annular groove and the sealing ring 210 are connected by a return spring, so that the abutting ring 3210 is blocked from the position of the liquid inlet 2200 under the action of the return spring.

[0031] When the mold head protruding cavity 21 is located at the mold head protruding 32, the two are relatively moved, so that the abutting ring 3210 moves and abuts against the sealing ring 210 to move into the annular groove, and the lubricating liquid flow guide ports 3211 on the abutting ring 3210 are located at the liquid inlet 2200, and at the same time, the oil lubricating cavity 4 is formed.

[0032] The storage cavity B 221 and the liquid transferring cavity 222 are communicated through the flow guide port B 224, so as to realize the transfer of the lubricating liquid in the storage cavity B 221 to the liquid transferring cavity 222.

[0033] The rotating liquid cavity 222 and the mold head convex cavity 21 are communicated, wherein the outlet end of the rotating liquid cavity 222 is provided with a pressure valve 6, preferably, the pressure valve 6 is an outer tube and an inner T-shaped sealing element, referring to Figures 8-12 The horizontal end of the T-shaped sealing element seals the top of the outer tube, and the outer tube is arranged in the outlet end of the rotating liquid cavity 222, wherein the outer diameter of the vertical end of the T-shaped sealing element is smaller than the inner diameter of the outer tube, so that a flow channel is formed between the vertical end of the T-shaped sealing element and the inner wall of the outer tube, and the horizontal end of the T-shaped sealing element is a disc structure, which is provided with a magnet, and under the action of the magnetic force, the horizontal end of the T-shaped sealing element is adsorbed on the end of the outer tube to seal the outlet end of the rotating liquid cavity 222; the vertical end of the T-shaped sealing element is located in the outer tube, and the outer wall of the vertical end of the T-shaped sealing element is provided with at least two outer extension protrusions, wherein the outer extension protrusions contact and slide with the inner part of the outer tube, and in addition, under the normal state, the vertical end of the T-shaped sealing element penetrates through the outer tube and extends into the mold head convex cavity 21.

[0034] When the mold head convex cavity 21 is aligned with the mold head convex 32, the two are relatively moved, and the mold head convex 32 abuts against the vertical end of the T-shaped sealing element, so that the horizontal end of the T-shaped sealing element is separated from the end of the outer tube, and the rotating liquid cavity 222 is communicated with the oil lubrication cavity 4 through the flow channel.

[0035] It should be noted that the flow of the lubricating oil from the rotating liquid cavity 222 to the oil lubrication cavity 4 is greater than the flow from the oil lubrication cavity 4 to the liquid storage cavity A220, so that the inflow of the oil lubrication cavity 4 is greater than the outflow, and the oil lubrication cavity 4 is in a survival state.

[0036] Based on the arrangement of the oil seat 2 and the punch 3, the movement structure of the oil seat 2 and the punch 3 is arranged as follows: First, the oil seat 2 moves relative to the punch 3, and the movement structure is arranged as follows: a relative linear driving element 7 is arranged between the side wall of the oil seat 2 and the side wall of the punch 3.

[0037] Referring to Figures 1-4 The moving seat 70 moves horizontally relative to the side wall of the oil seat 2 and the punch 3.

[0038] Referring to Figures 1-4 The number of the connecting rods 71 is two groups, wherein one end of each connecting rod 71 of one group is connected with the side wall of the oil seat 2 and the side wall of the moving seat 70, respectively, and one end of each connecting rod 71 of the other group is connected with the side wall of the punch 3 and the side wall of the moving seat 70, respectively, and specifically, one end of the two groups of connecting rods 71 rotates on the same side wall of the moving seat 70, and the two groups of connecting rods 71 are symmetrically arranged about the center of the moving seat 70. Preferably, referring to Figure 2The end of the connecting rod 71 is connected with the side wall of the punch 3, the side wall of the moving seat 70 and the side wall of the oil seat 2 through a connecting seat, and the connecting seat is rotationally connected with the side wall of the punch 3 and the side wall of the oil seat 2, that is, the connecting seat has a hollow shaft on the side away from the connecting rod 71, and the hollow shaft is rotationally connected with the side wall of the punch 3 and the side wall of the oil seat 2.

[0039] In some embodiments, in order to maintain the relative positions of the punch 3 and the oil seat 2 in the initial state, a reset torsional spring can be sleeved on the hollow shaft to ensure the initial state of the punch 3 and the oil seat 2, and the initial state can be defined according to actual needs, for example, the mold head protrusion 32 is aligned with the mold head protrusion cavity 21, or the abutting protrusion 30 is aligned with the abutting protrusion cavity 20.

[0040] When the moving seat 70 moves horizontally, the oil seat 2 and the punch 3 move relatively or oppositely.

[0041] In some embodiments, a vertical driving member for driving the moving seat 70 to move vertically is arranged on the mold seat 1, wherein the vertical driving member is a linear driving component such as a motor-driven rotating screw or a cylinder. When the vertical driving member is a motor-driven rotating screw, the screw is threadedly connected with the moving seat 70, and then through the rotation of the screw, the oil seat 2 and the punch 3 are first moved synchronously and relatively to the mold seat 1. When the vertical driving member is a cylinder, the output end of the cylinder is fixed on the moving seat 70, and then through the output of the cylinder, the oil seat 2 and the punch 3 are synchronously and uniformly moved.

[0042] After the oil seat 2 and the punch 3 are synchronously and uniformly moved, the distance between the oil seat 2 and the mold seat 1 is pulled apart, and further, space basis is provided for adjusting the alignment of the end portions after the oil seat 2 and the punch 3 are rotated.

[0043] Based on the arrangement of the vertical driving member, the embodiment also discloses a structure for driving the moving seat 70 to slide horizontally, preferably, a horizontal driving member is further arranged on the mold seat 1, the horizontal driving member drives the sliding seat to move, and the vertical driving member is installed on the sliding seat. In some embodiments, the horizontal driving member and the vertical driving member have the same structure, that is, a linear driving component such as a motor-driven rotating screw or a cylinder. When the horizontal driving member is a motor-driven rotating screw, the sliding seat is threadedly connected with the screw; when the horizontal driving member is a cylinder, the sliding seat is fixed on the output end of the cylinder.

[0044] After the horizontal driving member drives the sliding seat to move horizontally, the vertical driving member follows the horizontal movement, so that the sliding seat moves horizontally, and then through the connecting rod 71, the oil seat 2 and the punch 3 move relatively or oppositely, and further, the relative ends of the oil seat 2 and the punch 3 are switched.

[0045] Based on the relative or opposite movement of the oil seat 2 and the punch 3, the embodiment also discloses a structure for rotating the oil seat 2 and the punch 3 during the relative movement of the oil seat 2 and the punch 3, which is a rotating driving member 8, wherein the rotating driving member 8 is arranged on the side wall of the oil seat 2 and the punch 3. When the rotating driving member 8 moves based on the oil seat 2 and the punch 3, the rotating driving member 8 drives the oil seat 2 and the punch 3 to rotate, and switches the state of the abutting protrusion 30 abutting the abutting protrusion cavity 20 or the die head protrusion 32 abutting the die head protrusion cavity 21.

[0046] In some embodiments, the rotating driving member 8 comprises a driving shaft 80, a sliding rail seat 81, a gear set 82 and an adjusting rack 83.

[0047] Referring to Figure 6 , the driving shaft 80 is in a prismatic structure and is arranged at the center of the side wall of the oil seat 2 and the punch 3, and the end thereof is provided with a cylindrical connecting shaft, one end of the connecting rod 71 is rotatably sleeved on the outer wall of the cylindrical connecting shaft away from the moving seat 70, preferably, the cylindrical connecting shaft passes through the connecting seat and the hollow shaft in sequence and is fixed on the side wall of the oil seat 2 or the punch 3, so as to ensure that the rotation center of the driving shaft 80 and the center of the hollow shaft are located on the same rotation line, so that when the driving shaft 80 drives the oil seat 2 or the punch 3 to rotate, the driving shaft 80 is not interfered by the layout of the linear driving member 7, so that the oil seat 2 or the punch 3 can rotate without affecting the implementation of the linear driving member 7.

[0048] Referring to Figure 4 and Figure 5 , the sliding rail seat 81 is composed of a driving shaft sliding rail 810 and a connecting arm 811. The connecting arm 811 is connected between the driving shaft sliding rails 810, so that the driving shaft sliding rails 810 and the connecting arm 811 move synchronously and at the same speed.

[0049] The driving shaft sliding rail 810 is used for the radial linear sliding of the moving seat 70. In some embodiments, the driving shaft sliding rail 810 comprises a sliding port A 8100, a sliding port B 8101 and a sliding port C 8102, the width of the driving shaft 80 and the inner diameters of the sliding port A 8100 and the sliding port C 8102 are the same, and the inner diameter of the sliding port B 8101 is greater than the width of the driving shaft 80. When the driving shaft 80 moves in the sliding port B 8101, the driving shaft 80 can rotate, and when the driving shaft 80 slides between the sliding port A 8100 and the sliding port C 8102, the driving shaft 80 cannot rotate.

[0050] The driving shaft sliding rail 810 is provided with a linear groove, and the outer wall of the moving seat 70 is provided with a sliding protrusion, wherein the sliding protrusion slides in the linear groove, so as to ensure that the moving seat 70 moves under the premise of sliding, and the moving seat 70 drives the sliding rail seat 81 to move synchronously. It should be noted that the mold seat 1 is provided with a driving shaft sliding rail sliding port for the sliding of the driving shaft sliding rail 810.

[0051] Referring to Figure 4 ,Figure 5 and Figure 6 The gear set 82 is composed of a gear 820 and a driving shaft sleeve 821 fixed together. The slide rail seat 81 is also provided with a slide port D8103 for driving the sliding of the driving shaft sleeve 821, wherein the inner diameter width of the slide port D8103 is equal to the diameter of the driving shaft sleeve 821, ensuring the stable sliding of the driving shaft sleeve 821. In addition, the driving shaft sleeve 821 is provided with an embedded groove 8210 corresponding to the driving shaft 80, and the driving shaft sleeve 821 and the driving shaft 80 are coaxially arranged. When the driving shaft 80 is coaxially embedded in the driving shaft sleeve 821, the driving shaft 80 rotates coaxially with the driving shaft sleeve 821 and the gear 820.

[0052] Referring to Figure 1 , Figure 4 and Figure 5 The adjusting rack 83 is connected to the slide rail seat 81 and engaged with the gear 820. It should be noted that the area of the adjusting rack 83 is located at the position of the slide port B8101.

[0053] In addition, in order to further ensure the stability of the connection between the driving shaft sleeve 821 and the driving shaft 80, a telescopic positioning shaft is connected to the driving shaft 80, and a positioning hole is provided on the inner wall of the driving shaft sleeve 821. When the driving shaft 80 is embedded in the embedded groove 8210 of the driving shaft sleeve 821, the positioning shaft can move outward under the action of the air cylinder or the hydraulic cylinder, so that the positioning shaft is inserted into the positioning hole, and the driving shaft sleeve 821 and the driving shaft 80 can rotate synchronously and at the same speed.

[0054] Finally, the embodiment also discloses a structure of the adjusting rack 83. By changing the length of the adjusting rack 83, the engagement length of the adjusting rack 83 and the gear 820 is controlled, and the number of rotations of the gear 820 is further controlled, so that the number of rotations of the oil seat 2 and the punch 3 is controlled, and finally the positions of the opposite ends of the oil seat 2 and the punch 3 are controlled. Specifically, the state of the abutting protrusion 30 abutting against the protrusion cavity 20 or the die head protrusion 32 abutting against the die head protrusion cavity 21 is controlled.

[0055] The adjusting rack 83 includes a fixed rack 830 and a movable rack 831. The fixed rack 830 is fixed to the slide rail seat 81, and the movable rack 831 slides horizontally on the slide rail seat 81. When the movable rack 831 moves to the same vertical end of the fixed rack 830, the oil seat 2 and the punch 3 are caused to rotate by 180° again after the engagement of the fixed rack 830 by the movable rack 831, so that the abutting end of the oil seat 2 and the punch 3 is switched.

[0056] Further, to avoid the driving shaft 80 in the sliding port B8101 from rotating uncontrollably after the movable rack 831 loses engagement with the gear 820, in some embodiments, the movable rack 831 is connected to a limiting plate 9 through a bevel drive, the limiting plate 9 has the same length as the movable rack 831, and the limiting plate 9 horizontally slides in the sliding port B8101. When the movable rack 831 disengages from the fixed rack 830, the limiting plate 9 is driven by the bevel drive to move into the sliding port B8101 until the side wall of the limiting plate 9 is flush with the inner wall of the sliding port A8100 or the sliding port C8102, thereby restricting the driving shaft 80 from rotating.

[0057] wherein, referring to Figure 7 , the bevel drive is composed of a driving wedge, a driven wedge, and a bevel link, wherein the limiting plate 9 has a T-shaped structure, and the vertical end of the limiting plate 9 horizontally slides in the inner wall of the sliding port B8101. The driving wedge is fixed on the movable rack 831, the driven wedge slides on the sliding rail seat 81, and the two ends of the bevel link are rotationally connected with the driven wedge and the limiting plate 9. When the movable rack 831 moves to the fixed rack 830, the bevel surface of the driving wedge contacts the driven wedge to move into the sliding rail seat 81, and then the bevel link is driven to move the limiting plate 9 into the sliding port B8101.

[0058] It should be noted that the horizontal movement of the movable rack 831 is driven by any linear driving unit such as a cylinder or a push rod motor.

[0059] A method for using a liquid die forging punch with a lubricating channel includes the following steps of applying lubricating oil to the punch 3: S1, lowering the die forging punch assembly: the vertical driving member drives the moving seat 70 to move downward, causing the die forging punch assembly to move downward relative to the die seat 1, at this time, the abutting protrusion 30 is in position with the abutting cavity 20; S2, switching the position of the oil seat 2 and the punch 3: the horizontal driving member drives the vertical driving member and the moving seat 70 to move relative to each other, and the oil seat 2 and the punch 3 move away from each other to the end; the horizontal driving member drives the vertical driving member and the moving seat 70 to move away from each other again, at the same time, the movable rack 831 moves towards the fixed rack 830, and after the gear 820 engages with the added adjusting rack 83, the driving shaft 80 disengages from the sliding port B8101, the die head protrusion 32 is in position with the die head protrusion cavity 21, until the lubricating oil cavity 4 is formed, and the pressure valve 6 is opened; S3, lubricating oil increasing process of the die head protrusion 32: the lubricating oil is transferred from the liquid storage cavity B221 to the liquid transfer cavity 222, and then into the lubricating oil cavity 4, completing the attachment of lubricating oil on the surface of the die head protrusion 32, and the lubricating liquid in the lubricating oil cavity 4 enters the liquid storage cavity A220 through the lubricating liquid guide port 3211 and the liquid inlet 2200. S4, again switch oil seat 2 and punch 3 alignment end position: horizontal drive drive vertical drive and moving seat 70 relative movement, oil seat 2 and punch 3 move to the end of the opposite; In the flat drive again drive vertical drive and moving seat 70 move in the opposite direction, while the toothed rack 831 to the direction of disengaging the rack 830 movement, by reducing the gear 820 and adjusting the gear 83 mesh length, so that the drive shaft 80 off the slip B8101 after the mouth, against the protrusions 30 alignment against the protrusions cavity 20; At the same time, during the process, when the liquid storage cavity A220 is located above the liquid storage cavity B221, the gravity valve 5 is opened, and the lubricating liquid in the liquid storage cavity A220 flows to the liquid storage cavity B221; S5, die forging punch assembly reset: through the vertical drive moving seat 70 up, so that the die forging punch assembly relative to the die seat 1 up, until the die seat 1, oil seat 2 and punch 3 three mutual adhesion, and then follow the die seat 1 down, die forging punch assembly follow the die seat 1 down.

[0060] The above, only for the preferred specific embodiments of the present application, but the scope of protection of the present application is not limited to this, any skilled in the art of the technical personnel in the technical range of the present application disclosed according to the technical scheme of the present application and the invention concept of equivalent replacement or change, should be covered in the scope of protection of the present application.

Claims

1. A liquid forging punch with a lubrication channel, comprising a die base (1), characterized in that, The die base (1) is provided with a forging punch assembly below it, the forging punch assembly including an oil seat (2) and a punch (3). The punch (3) is composed of an abutment protrusion (30), a connecting seat (31) and a mold head protrusion (32), wherein the connecting seat (31) is connected between the abutment protrusion (30) and the mold head protrusion (32); The oil seat (2) has a contact protrusion cavity (20) and a mold head protrusion cavity (21) at both ends, which correspond to the contact protrusion (30) and the mold head protrusion (32), respectively; the oil seat (2) has an oil storage cavity (22), and the oil storage cavity (22) and the mold head protrusion cavity (21) are connected. The oil seat (2) moves relative to the punch (3), and both the oil seat (2) and the punch (3) are provided with a rotation drive (8) on their sidewalls. The rotation drive (8) drives the oil seat (2) and the punch (3) to rotate, switching the state of the abutting protrusion (30) aligned with the abutting protrusion cavity (20) or the mold head protrusion (32) aligned with the mold head protrusion cavity (21).

2. The liquid forging punch with a lubrication channel according to claim 1, characterized in that, The mold head protrusion (32) includes: A punch holder (320) is provided, and an oil lubrication cavity (4) is formed between the punch holder (320) and the mold head protrusion cavity (21). The abutment seat (321) is located between the punch seat (320) and the connecting seat (31), and the outer diameter of the abutment seat (321) is larger than the outer diameter of the punch seat (320) and the inner diameter of the mold head protrusion cavity (21); and the side wall of the abutment seat (321) is provided with an abutment ring (3210), and the abutment ring (3210) is provided with a plurality of lubricating fluid guide ports (3211).

3. A liquid forging punch with a lubrication channel according to claim 2, characterized in that, A sealing ring (210) slides at the groove of the protruding cavity (21) of the mold head, and the sealing ring (210) and the abutment ring (3210) are aligned.

4. A liquid forging punch with a lubrication channel according to claim 3, characterized in that, The oil storage chamber (22) includes a liquid storage chamber A (220), a liquid storage chamber B (221), and a liquid transfer chamber (222). The liquid storage chamber A (220) and the liquid storage chamber B (221) are connected by a guide port A (223). The side of the liquid storage chamber A (220) is provided with an annular liquid inlet (2200). The liquid inlet (2200) is located in the lubrication chamber (4) and is aligned with the lubricating liquid guide port (3211). The liquid storage chamber B (221) and the liquid transfer chamber (222) are connected by a guide port B (224); The liquid transfer chamber (222) and the mold head protrusion chamber (21) are connected.

5. A liquid forging punch with a lubrication channel according to claim 4, characterized in that, A gravity valve (5) is provided on the flow guide port A (223); A pressure valve (6) is provided at the outlet end of the liquid transfer chamber (222).

6. A liquid forging punch with a lubrication channel according to claim 1, characterized in that, A relative linear drive (7) is provided between the side wall of the oil seat (2) and the side wall of the punch (3), the relative linear drive (7) comprising: The movable seat (70) moves horizontally perpendicular to the side wall of the oil seat (2) and the punch (3); There are two sets of connecting rods (71). One set of connecting rods (71) is connected at both ends to the side wall of the oil seat (2) and the side wall of the moving seat (70), respectively. The other set of connecting rods (71) is connected at both ends to the side wall of the punch (3) and the side wall of the moving seat (70), respectively.

7. A liquid forging punch with a lubrication channel according to claim 6, characterized in that, The mold base (1) is provided with a vertical drive member for driving the moving base (70) to move vertically; Furthermore, the mold base (1) is also provided with a horizontal drive component, the drive end of which is connected to a slide block, and the vertical drive component is installed on the slide block.

8. A liquid forging punch with a lubrication channel according to claim 7, characterized in that, The rotation drive (8) includes: The drive shaft (80) has a prismatic structure and is located at the center of the side wall of the oil seat (2) and the punch (3). Its end is provided with a cylindrical connecting shaft. The end of the connecting rod (71) away from the moving seat (70) is rotatably sleeved on the outer wall of the cylindrical connecting shaft. The slide rail base (81) is composed of a drive shaft slide rail (810) and a connecting arm (811), wherein the connecting arm (811) is connected between the drive shaft slide rails (810); the drive shaft slide rail (810) is used for the drive shaft (80) to slide, and the drive shaft slide rail (810) includes a slide opening A (8100), a slide opening B (8101) and a slide opening C (8102). The width of the drive shaft (80) and the inner diameter of the slide opening A (8100) are the same as the inner diameter of the slide opening C (8102), and the inner diameter of the slide opening B (8101) is greater than the width of the drive shaft (80). The gear assembly (82) consists of a gear (820) fixed together and a drive shaft sleeve (821). The slide rail seat (81) is also provided with a sliding opening D (8103) for sliding of the drive shaft sleeve (821). The drive shaft sleeve (821) is provided with an embedding groove (8210) corresponding to the drive shaft (80), and the drive shaft sleeve (821) and the drive shaft (80) are coaxially arranged. Adjusting rack (83) is connected to slide rail seat (81) and meshes with gear (820).

9. A liquid forging punch with a lubrication channel according to claim 8, characterized in that, The adjusting rack (83) includes: A fixed rack (830) is fixed on the slide rail seat (81); The movable rack (831) slides horizontally on the slide rail seat (81); The movable rack (831) is connected to the limiting plate (9) through the oblique drive member. The length of the limiting plate (9) is the same as the length of the movable rack (831), and the limiting plate (9) slides horizontally within the sliding opening B (8101).

10. A method of using a liquid forging punch with a lubrication channel, comprising the liquid forging punch with a lubrication channel as described in any one of claims 1-9, characterized in that, Applying lubricant to the punch (3) includes the following steps: S1. The forging punch assembly moves downward: The moving seat (70) is driven downward by the vertical drive component, causing the forging punch assembly to move downward relative to the die seat (1); S2. Switch the alignment positions of the oil seat (2) and the punch (3): The horizontal drive drives the vertical drive and the moving seat (70) to move relative to each other, and the oil seat (2) and the punch (3) move to the end opposite to each other; the horizontal drive drives the vertical drive and the moving seat (70) to move opposite to each other again, and at the same time, the moving rack (831) moves towards the fixed rack (830), and after meshing with the added adjusting rack (83) through the gear (820), the drive shaft (80) is disengaged from the slide B (8101), and the mold head protrusion (32) aligns with the mold head protrusion cavity (21) to form the lubrication cavity (4), and the pressure valve (6) is opened; S3, Lubricating oil addition process of mold head protrusion (32): Lubricating oil is transferred from storage chamber B (221) to transfer chamber (222), and then enters the lubrication chamber (4) to complete the lubrication of the mold head protrusion (32). The lubricating fluid in the lubrication chamber (4) enters the storage chamber A (220) through the lubricating fluid guide port (3211) and the inlet port (2200); S4. Switch the alignment positions of the oil seat (2) and the punch (3) again: The horizontal drive drives the vertical drive and the moving seat (70) to move relative to each other, and the oil seat (2) and the punch (3) move to the ends in opposite directions; the horizontal drive drives the vertical drive and the moving seat (70) to move in opposite directions again, and at the same time, the moving rack (831) moves in the direction of disengaging from the fixed rack (830). By reducing the meshing length between the gear (820) and the adjusting rack (83), the drive shaft (80) disengages from the slide B (8101), and the abutting protrusion (30) aligns with the abutting protrusion cavity (20). Meanwhile, during this process, when the liquid storage chamber A (220) is above the liquid storage chamber B (221), the gravity valve 5 opens, and the lubricating fluid in the liquid storage chamber A (220) flows to the liquid storage chamber B (221). S5. Reset of the forging punch assembly: The moving seat (70) is driven to move upward by the vertical drive component, causing the forging punch assembly to move upward relative to the die seat (1) until the die seat (1), oil seat (2) and punch (3) are in contact with each other. Then, after the die seat (1) moves downward, the forging punch assembly moves downward with the die seat (1).

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