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 invention relates to the technical field of liquid die forging punches, and in particular to a liquid die forging punch with a lubrication channel and a use method thereof. Background Art

[0002] Liquid die forging is also called squeeze casting, continuous casting and forging. It is to pour a certain amount of molten metal directly into a cavity coated with lubricant, and continuously apply mechanical static pressure, using the easy flow of metal casting and forging technology to make the solidified hard shell plastically deformed, so that the metal crystallizes and solidifies under pressure and forcibly eliminates shrinkage cavities and shrinkage formed by solidification shrinkage, so as to obtain liquid die forging parts without casting defects. This method is usually called liquid die forging.

[0003] In order to facilitate the separation of the punch from the workpiece after forging and shaping, the liquid die forging punch in the prior art is lubricated with lubricating oil on the surface of the punch. The lubrication method of the liquid die forging punch in the prior art refers to the "liquid die forging punch with a lubrication channel" applied for with application number "202222967241.6", which includes a connecting seat, the upper surface of which is fixedly connected with a feed port, a metal liquid tank is arranged inside the connecting seat, the lower surface of the connecting seat is fixedly connected with a lower barrel, and the lower surface of the lower barrel is fixedly connected with a punch; a moving ring, the interior of the moving ring is fixedly connected with a fixed rod, the 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 a telescopic rod; an arc plate one, the interior of the arc plate one is connected with an arc plate two, and the end of the arc plate two close to the arc plate one is fixedly connected with a spring; an oil tank, the upper surface of the oil tank is fixedly connected with an oil inlet, and the lower surface of the oil tank is fixedly connected with an oil guide pipe.

[0004] The above-mentioned prior art cannot attach lubricating oil to punches with special outer walls. Specifically, some special punch outer walls, such as punches with uneven outer walls, have the following problems during the lubricating oil attachment process: first, the arc plate cannot be moved to make the lubricating oil evenly applied; second, the uneven outer wall of the punch will cause the lubricating oil to remain on the punch surface and cannot flow downward, resulting in poor lubrication effect of the punch. Therefore, there is a situation where the punch cannot be separated from the workpiece. Summary of the invention

[0005] The purpose of the present invention is to solve the problem in the prior art that lubricating oil cannot be attached to a punch with a special shape of outer wall, resulting in the inability to separate the punch from the workpiece, and to propose a liquid die forging punch with a lubrication channel and a method of using the same.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A liquid die forging punch with a lubrication channel comprises a die base, a die forging punch assembly is arranged below the die base, and the die forging punch assembly comprises an oil seat and a punch;

[0008] The punch is composed of a resisting protrusion, a connecting seat and a die head protrusion, wherein the connecting seat is connected between the resisting protrusion and the die head protrusion;

[0009] The two ends of the oil seat are respectively provided with a conflicting protrusion cavity and a die head protrusion cavity corresponding to the conflicting protrusion and the die head protrusion; an oil storage cavity is provided in the oil seat, and the oil storage cavity is communicated with the die head protrusion cavity;

[0010] The oil seat moves relative to the punch, and the side walls of the oil seat and the punch are provided with a rotating drive member, which drives the oil seat and the punch to rotate, switching the state of the interference protrusion to the interference protrusion cavity or the mold head protrusion to the mold head protrusion cavity.

[0011] Preferably, the die head protrusion comprises:

[0012] A punch seat, wherein an oil lubrication cavity is formed between the punch seat and the protruding cavity of the die head;

[0013] The abutment seat is located between the punch seat and the connecting seat, and the outer diameter of the abutment seat is larger than the outer diameter of the punch seat and the inner diameter of the protruding cavity of the die head; and the side wall of the abutment seat is provided with a abutment ring, and the abutment ring is provided with a plurality of lubricating liquid guide ports.

[0014] Preferably, a sealing ring is slidably disposed at the notch of the protruding cavity of the mold head, and the sealing ring and the abutment ring are aligned.

[0015] Preferably, the oil storage chamber includes a liquid storage chamber A, a liquid storage chamber B and a liquid transfer chamber;

[0016] The liquid storage chamber A and the liquid storage chamber B are connected through a guide port A. A circular liquid inlet is provided on the side of the liquid storage chamber A. The liquid inlet is located in the oil lubrication chamber and is aligned with the lubricating liquid guide port.

[0017] The liquid storage chamber B and the liquid transfer chamber are connected via a flow guide port B;

[0018] The liquid transfer cavity is communicated with the protruding cavity of the mold head.

[0019] Preferably, a gravity valve is provided on the diversion port A;

[0020] A pressure valve is arranged at the liquid outlet end of the liquid transfer cavity.

[0021] Preferably, a relative linear driving member is provided between the side wall of the oil seat and the side wall of the punch, and the relative linear driving member comprises:

[0022] A movable seat, which moves horizontally perpendicular to the side wall of the oil seat and the punch;

[0023] There are two groups of connecting rods, wherein two ends of the connecting rods in one group are respectively connected to the side wall of the oil seat and the side wall of the moving seat, and two ends of the connecting rods in the other group are respectively connected to the side wall of the punch and the side wall of the moving seat.

[0024] Preferably, the mold base is provided with a vertical driving member for driving the vertical linearity of the movable base;

[0025] A horizontal driving member is also provided on the mold base, a driving end of the horizontal driving member is connected to a slide seat, and the vertical driving member is installed on the slide seat.

[0026] Preferably, the rotary drive member comprises:

[0027] A drive shaft, which is a prismatic structure and is disposed at the center of the side walls of the oil seat and the punch;

[0028] A slide rail seat, comprising a drive shaft slide rail, a connecting arm and a movable seat slide rail, wherein the connecting arm is connected between the drive shaft slide rail and the movable seat slide rail, and the movable seat slide rail is used for radial linear sliding of the movable seat; the drive shaft slide rail is used for sliding of the drive shaft, and the drive shaft slide rail comprises a slide opening A, a slide opening B and a slide opening C, the width of the drive shaft and the inner diameter of the slide opening A and the inner diameter of the slide opening C are the same, and the inner diameter of the slide opening B is larger than the width of the drive shaft;

[0029] The gear set is composed of a gear and a drive sleeve fixed together, the slide rail seat is also provided with a sliding opening D for the drive sleeve to slide, the drive sleeve is provided with an embedding groove corresponding to the drive shaft, and the drive sleeve and the drive shaft are coaxially arranged;

[0030] The adjusting rack is connected to the slide rail seat and meshes with the gear.

[0031] Preferably, the adjusting rack comprises:

[0032] A fixed rack, fixed on the slide rail seat;

[0033] A movable rack slides horizontally on the slide rail seat;

[0034] The movable rack is connected to a limit plate through an oblique driving member. The length of the limit plate is the same as that of the movable rack, and the limit plate slides horizontally in the sliding opening B.

[0035] A method for using a liquid die forging punch having a lubrication channel, using a liquid die forging punch having a lubrication channel, and applying lubricating oil to the punch comprises the following steps:

[0036] S1. Moving the die forging punch assembly downward: driving the movable seat downward by a vertical driving member, so that the die forging punch assembly moves downward relative to the die seat;

[0037] S2, switching the oil seat and the punch alignment end position: the horizontal driving member drives the vertical driving member and the movable seat to move relative to each other, and the oil seat and the punch move to the end in opposite directions; the horizontal driving member drives the vertical driving member and the movable seat to move in opposite directions again, and at the same time, the movable rack moves toward the fixed rack, and after the gear is engaged with the added adjustment rack, the driving shaft is disengaged from the sliding port B, and the die head protrusion is aligned with the die head protrusion cavity to form an oil lubrication cavity, and the pressure valve is opened;

[0038] S3, the process of increasing the lubricating oil of the die head protrusion: the lubricating oil is transferred from the liquid storage chamber B to the liquid transfer chamber, and then enters the oil lubrication chamber, and the lubricating oil is attached to the surface of the die head protrusion. The lubricating liquid in the oil lubrication chamber enters the liquid storage chamber A through the lubricating liquid guide port and the liquid inlet;

[0039] S4, switching the oil seat and the punch alignment end position again: the horizontal driving member drives the vertical driving member and the movable seat to move relative to each other, and the oil seat and the punch move to the end in opposite directions; the horizontal driving member drives the vertical driving member and the movable seat to move in opposite directions again, and at the same time, the movable rack moves in the direction of disengaging from the fixed rack, and after the drive shaft disengages from the sliding port B by reducing the meshing length between the gear and the adjusting rack, the abutment protrusion aligns with the abutment protrusion cavity;

[0040] At the same time, during this process, when the liquid storage chamber A is located above the liquid storage chamber B, the gravity valve opens, and the lubricating liquid in the liquid storage chamber A flows to the liquid storage chamber B;

[0041] S5. Reset the die forging punch assembly: drive the movable seat upward through the vertical driving member, so that the die forging punch assembly moves upward relative to the die base until the die base, the oil seat and the punch fit together, and then moves downward with the die base, and the die forging punch assembly moves downward with the die base.

[0042] The beneficial effects of the present invention are:

[0043] In the present invention, an oil seat and a punch that can be relatively moved are used. During the movement, the positioning end positions of the oil seat and the punch can be switched during a single reciprocating movement by cooperating with a rotating drive member and a relative linear drive member. When the die head protrusion is aligned with the die head protrusion cavity, an oil lubrication cavity can be formed. By filling the lubricating oil into the oil lubrication cavity, the lubricating oil can be attached to the outer wall of the punch seat. By adopting this type of lubricating oil attachment method, the shape of the outer wall of the punch seat is not restricted, and it can adapt to the contours of the outer wall of the punch seat with different rules, thereby further avoiding the situation where the punch and the workpiece part cannot be separated. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 This is a schematic structural diagram of a liquid die forging punch with a lubrication channel proposed by the present invention;

[0045] Figure 2 A structural diagram of a die forging punch assembly in a liquid die forging punch with a lubrication channel proposed by the present invention;

[0046] Figure 3 This is an internal structural diagram of a die forging punch assembly in a liquid die forging punch with a lubrication channel proposed by the present invention;

[0047] Figure 4 A structural diagram of a relative linear drive member and a rotary drive member in a liquid die forging punch with a lubrication channel proposed by the present invention;

[0048] Figure 5 This is a structural diagram of a rotating driving member in a liquid die forging punch with a lubrication channel proposed by the present invention;

[0049] Figure 6 This is a structural diagram of a drive shaft and a gear set in a liquid forging punch with a lubrication channel proposed by the present invention;

[0050] Figure 7 This is a connection structure diagram of a movable rack and a limit plate in a liquid die forging punch with a lubrication channel proposed by the present invention;

[0051] Figure 8 An internal diagram of an oil seat and a punch in a liquid die forging punch with a lubrication channel proposed by the present invention;

[0052] Fig. 9 This is a structural diagram of a lubricating cavity formed by connecting a die head protrusion cavity and a die head protrusion in a liquid die forging punch with a lubrication channel proposed by the present invention;

[0053] Fig.10 This is a structural diagram of the die head protrusion cavity and the die head protrusion separation state in a liquid die forging punch with a lubrication channel proposed by the present invention;

[0054] Fig.11 A state diagram of the abutting protrusion cavity aligning with the abutting protrusion after the oil seat and the opposite end of the punch are switched in the liquid die forging punch with a lubrication channel proposed by the present invention;

[0055] Fig.12 This is a state diagram of the abutment protrusion cavity connecting to the abutment protrusion after the oil seat and the opposite end of the punch are switched in the liquid die forging punch with a lubrication channel proposed by the present invention.

[0056] In the figure: 1, die base; 2, oil seat; 20, conflicting 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, diversion port A; 224, diversion port B; 3, punch; 30, conflicting protrusion; 31, connecting seat; 32, die head protrusion; 320, punch seat; 321, conflicting seat; 3210, conflicting ring; 3211, lubricating liquid diversion port; 4, oil lubrication cavity; 5, gravity valve; 6. Pressure valve; 7. Relative linear drive member; 70. Moving seat; 71. Connecting rod; 8. Rotating drive member; 80. Driving shaft; 81. Slide rail seat; 810. Driving shaft slide rail; 8100. Slide A; 8101. Slide B; 8102. Slide C; 8103. Slide D; 811. Connecting arm; 812. Moving seat slide rail; 82. Gear kit; 820. Gear; 821. Driving shaft sleeve; 8210. Embedded groove; 83. Adjusting rack; 830. Fixed rack; 831. Moving rack; 9. Limit plate. DETAILED DESCRIPTION

[0057] Reference Figure 1-Figure 12 A liquid die forging punch with a lubrication channel and a method for using the same include a die base 1. The die base 1 is a linear component connected to a cylinder in the prior art and is used to install a die forging punch assembly. Driven by a linear component such as a cylinder, the die forging punch moves linearly synchronously through the transmission of the die base 1.

[0058] Reference Figure 8-Figure 12 The die forging punch assembly consists of an oil seat 2 and a punch 3, and the oil seat 2 is located directly below the die seat 1. Furthermore, the oil seat 2 is located above the punch 3, wherein the oil seat 2 provides lubricating oil for the punch 3.

[0059] The punch 3 is composed of a resisting protrusion 30, a connecting seat 31 and a die head protrusion 32, and the connecting seat 31 is connected between the resisting protrusion 30 and the die head protrusion 32. It should be noted that the resisting protrusion 30 and the die head protrusion 32 have the same length, which refers to the distance between the resisting protrusion 30 and the end of the die head protrusion 32 and the outer wall of the connecting seat 31.

[0060] Further, see Figure 8-Figure 12 The die head protrusion 32 is composed of a punch seat 320 and an abutment seat 321 , wherein the outer wall of the punch seat 320 is the outer wall contour of the die forging punch to be formed, and the abutment seat 321 is used to connect the punch seat 320 and the connecting seat 31 .

[0061] The two ends of the oil seat 2 are respectively provided with a contact protrusion cavity 20 and a mold head protrusion cavity 21 corresponding to the contact protrusion 30 and the mold head protrusion 32. Further, the inner wall of the contact protrusion cavity 20 is the same as the outer wall of the contact protrusion 30, and the contact protrusion cavity 20 and the contact protrusion 30 are in close contact.

[0062] 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 die head protrusion cavity 21 .

[0063] When the punch seat 320 is aligned with the die head protruding cavity 21, an oil lubrication cavity 4 is formed between the punch seat 320 and the die head protruding cavity 21. The oil lubrication cavity 4 is formed to store lubricating oil so that the lubricating oil is fully in contact with the outer wall of the punch seat 320 and is not restricted by the shape of the outer wall of the punch seat 320, so that the lubricating oil is fully attached to the outer wall of the punch seat 320.

[0064] The oil seat 2 is provided with a lubricating oil channel, specifically the channel is an oil storage chamber 22, wherein the oil storage chamber 22 is configured as follows:

[0065] The oil storage chamber 22 is composed of a liquid storage chamber A220 , a liquid storage chamber B221 and a liquid transfer chamber 222 .

[0066] The liquid storage chamber A220 and the liquid storage chamber B221 are connected through the guide port A223. Further, a gravity valve 5 is provided on the guide port A223, wherein the gravity valve 5 is composed of a connecting pipe and a gravity plugging member sliding in the connecting pipe. Figure 8-Figure 12 The gravity plugging piece is composed of a workpiece seat, wherein the workpiece seat includes a lower end plate, an upper end plate and a middle tube, wherein a flow guide hole is provided on the lower end plate, and the outer diameter of the middle tube is smaller than the inner diameter of the connecting tube, so a flow guide channel is formed between the middle tube and the connecting tube, and the outer diameters of the middle tube and the lower end plate and the upper end plate are larger than the outer diameter of the connecting tube and smaller than the inner diameter of the flow guide port A223, and the flow guide hole is aligned with the flow guide channel position. In addition, in order to stabilize the sliding position of the gravity plugging piece, an arc-shaped protrusion is also provided on the outer wall of the middle tube, wherein the arc-shaped protrusion contacts the inner wall of the connecting tube.

[0067] When the liquid storage chamber A220 is located below the liquid storage chamber B221, the upper end plate is attached to the upper end of the connecting tube under the action of gravity, and the liquid storage chamber A220 and the liquid storage chamber B221 are not connected; when the liquid storage chamber B221 is located below the liquid storage chamber A220, the upper end plate is separated from the end of the connecting tube under the action of gravity, and the liquid storage chamber A220 and the liquid storage chamber B221 are connected through the guide hole, the guide channel and the guide port A223.

[0068] To facilitate the inflow of liquid into the liquid storage chamber A220, an annular liquid inlet 2200 is provided on the side of the liquid storage chamber A220. The liquid inlet 2200 is located in the lubricating chamber 4, and the lubricating liquid in the lubricating chamber 4 flows into the liquid storage chamber A220 through the liquid inlet 2200.

[0069] The present invention also discloses a structure for transferring lubricating oil from the liquid inlet 2200 to the oil lubricating cavity 4 during the formation of the oil lubricating cavity 4. The structure is as follows: first, a side wall of the abutment seat 321 is provided with a abutment ring 3210, and a plurality of lubricating liquid guide ports 3211 are provided on the abutment ring 3210; second, a sealing ring 210 is slidably provided at the notch of the mold head protruding cavity 21, and the sealing ring 210 and the abutment ring 3210 are aligned. It should be supplemented that: the inner wall of the notch of the mold head protruding cavity 21 is provided with an annular groove for accommodating the sealing ring 210, wherein the inner side wall of the annular groove and the sealing ring 210 are connected by a reset spring, and under the action of the reset spring, the abutment ring 3210 is not affected by external force, and blocks the position of the liquid inlet 2200.

[0070] When the die head protrusion cavity 21 is aligned with the die head protrusion 32, the two move relative to each other, causing the abutment ring 3210 to move and then press against the sealing ring 210 to move into the annular groove until the lubricating liquid guide port 3211 on the abutment ring 3210 is aligned with the liquid inlet 2200. At the same time, the oil lubrication cavity 4 is formed.

[0071] The liquid storage chamber B221 and the liquid transfer chamber 222 are connected via a guide port B224 , so that the lubricating liquid in the liquid storage chamber B221 is transferred to the liquid transfer chamber 222 .

[0072] The liquid transfer cavity 222 is connected to the mold head protrusion cavity 21, wherein the liquid outlet end of the liquid transfer cavity 222 is provided with a pressure valve 6, preferably, the pressure valve 6 is an outer tube and an inner T-shaped seal, refer to Figure 8-Figure 12 The horizontal end of the T-shaped seal seals the top of the outer tube, and the outer tube is arranged in the liquid outlet end of the liquid transfer cavity 222, wherein the outer diameter of the vertical end of the T-shaped seal is smaller than the inner diameter of the outer tube, and a flow channel is formed between the vertical end of the T-shaped seal and the inner wall of the outer tube, and the horizontal end of the T-shaped seal is a disc-shaped structure, in which a magnet is provided, which is not affected by external forces, and under the action of magnetic force, it is adsorbed on the end of the outer tube to seal the liquid outlet end of the liquid transfer cavity 222; the vertical end of the T-shaped seal is located in the outer tube, and the outer wall of the vertical end of the T-shaped seal is provided with at least two external extension protrusions, wherein the external extension protrusions contact and slide with the inside of the outer tube, and in addition, under normal conditions, the vertical end of the T-shaped seal passes through the outer tube and extends into the protrusion cavity 21 of the mold head.

[0073] When the mold head protrusion cavity 21 is aligned with the mold head protrusion 32, the two move relative to each other, and the mold head protrusion 32 contacts the vertical end of the T-shaped seal, causing the horizontal end of the T-shaped seal to separate from the end of the outer tube, and the liquid transfer cavity 222 is connected to the formed oil lubrication cavity 4 through the flow channel.

[0074] It should be noted that the flow rate of lubricating oil from the transfer chamber 222 to the lubricating chamber 4 is greater than the flow rate from the lubricating chamber 4 to the liquid storage chamber A220, so that the amount of lubricating oil entering the lubricating chamber 4 is greater than the amount of lubricating oil leaving the lubricating chamber 4, causing the lubricating chamber 4 to be in a continuous state.

[0075] Based on the settings of the oil seat 2 and the punch 3, the motion structures of the oil seat 2 and the punch 3 are set as follows:

[0076] Firstly, the oil seat 2 moves relative to the punch 3 , and the moving structure is configured as follows: a relative linear driving member 7 is provided between the side wall of the oil seat 2 and the side wall of the punch 3 , and the relative linear driving member 7 includes a moving seat 70 and a connecting rod 71 .

[0077] Reference Figure 1-Figure 4 , the movable seat 70 moves horizontally perpendicular to the side wall of the oil seat 2 and the punch 3.

[0078] Reference Figure 1-Figure 4 There are two groups of connecting rods 71, two ends of one group of connecting rods 71 ​​are respectively connected to the side wall of the oil seat 2 and the side wall of the movable seat 70, and two ends of the other group of connecting rods 71 ​​are respectively connected to the side wall of the punch 3 and the side wall of the movable seat 70. Specifically, one end of the two groups of connecting rods 71 ​​rotates on the same side wall of the movable seat 70, and the two groups of connecting rods 71 ​​are symmetrically arranged about the center of the movable seat 70.

[0079] When the moving seat 70 moves horizontally, the oil seat 2 and the punch 3 are caused to move relative to or away from each other.

[0080] In some embodiments, a vertical driving member for driving the moving seat 70 to move vertically is provided on the die base 1, wherein the vertical driving member is a linear driving member such as a screw or a cylinder driven by a motor. When the vertical driving member is a screw driven by a motor, the screw is threadedly connected to the moving seat 70, and the oil seat 2 and the punch 3 are first moved synchronously by the rotation of the screw, and move relative to the die base 1, while the oil seat 2 and the punch 3 are relatively static. When the vertical driving member is a cylinder, the output end of the cylinder is fixed on the moving seat 70, and the oil seat 2 and the punch 3 are moved synchronously, at the same speed, and in the same direction through the output of the cylinder.

[0081] After the oil seat 2 and the punch 3 move synchronously at the same speed and in the same direction, the distance between the oil seat 2 and the die base 1 is increased, and further, a spatial basis is provided for adjusting the alignment ends of the oil seat 2 and the punch 3 after they are rotated.

[0082] Based on the setting of the vertical driving member, the present embodiment also discloses a structure for driving the movable seat 70 to slide horizontally. Preferably, a horizontal driving member is also provided on the mold base 1, and the horizontal driving member drives the slide to move, and the vertical driving member is installed on the slide. In some embodiments, the horizontal driving member and the vertical driving member have the same structure, and are linear driving components such as a screw or a cylinder driven to rotate by a motor. When the horizontal driving member is a screw driven to rotate by a motor, the slide is threadedly connected to the screw; when the horizontal driving member is a cylinder, the slide is fixed to the output end of the cylinder.

[0083] After the horizontal driving member drives the slide to move horizontally, the vertical driving member follows the horizontal movement, thereby causing the slide to move horizontally, causing the oil seat 2 and the punch 3 to move relative to or away from each other through the connecting rod 71, and further switching the opposite ends of the oil seat 2 and the punch 3.

[0084] Based on the fact that the oil seat 2 and the punch 3 can move relative to or opposite to each other, the present embodiment further discloses a structure in which the oil seat 2 and the punch 3 rotate during the relative movement of the oil seat 2 and the punch 3, and the structure is a rotation driving member 8, wherein the rotation driving member 8 is arranged on the side walls of the oil seat 2 and the punch 3. When the rotation driving member 8 moves based on the oil seat 2 and the punch 3, the oil seat 2 and the punch 3 are driven to rotate, and the state of the abutting protrusion 30 aligning with the abutting protrusion cavity 20 or the state of the die head protrusion 32 aligning with the die head protrusion cavity 21 is switched.

[0085] In some embodiments, the rotary drive member 8 includes a drive shaft 80 , a slide rail seat 81 , a gear set 82 and an adjustment rack 83 .

[0086] Reference Figure 6 The drive shaft 80 has a prismatic structure and is arranged at the center of the side walls of the oil seat 2 and the punch 3.

[0087] Reference Figure 4 and Figure 5 The slide rail seat 81 is composed of a drive shaft slide rail 810, a connecting arm 811 and a moving seat slide rail 812. The connecting arm 811 is connected between the drive shaft slide rail 810 and the moving seat slide rail 812, so that the drive shaft slide rail 810, the connecting arm 811 and the moving seat slide rail 812 move synchronously at the same speed.

[0088] The drive shaft slide rail 810 is used for radial linear sliding of the mobile seat 70. In some embodiments, the drive shaft slide rail 810 includes a slide A8100, a slide B8101, and a slide C8102, the width of the drive shaft 80 and the inner diameter of the slide A8100 are the same as the inner diameter of the slide C8102, and the inner diameter of the slide B8101 is greater than the width of the drive shaft 80. When the drive shaft 80 moves in the slide B8101, the drive shaft 80 can rotate, and when the drive shaft 80 slides between the slide A8100 and the slide C8102, it cannot rotate.

[0089] The slide groove of the moving seat slide rail 812 is 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, and under the premise of ensuring the sliding of the moving seat 70, the moving seat 70 drives the moving seat slide rail 812, thereby driving the slide rail seat 81 to move synchronously. It should be supplemented that: the mold base 1 is provided with a drive shaft slide rail sliding mouth for the drive shaft slide rail 810 to slide.

[0090] Reference Figure 4 , Figure 5 and Figure 6The gear set 82 is composed of a gear 820 and a drive sleeve 821 fixed together. The slide rail seat 81 is also provided with a sliding opening D8103 for the drive sleeve 821 to slide. The inner diameter width of the sliding opening D8103 is equal to the diameter of the drive sleeve 821, so as to ensure the stable sliding of the drive sleeve 821. In addition, the drive sleeve 821 is provided with an embedding groove 8210 corresponding to the drive shaft 80, and the drive sleeve 821 and the drive shaft 80 are coaxially arranged. When the drive shaft 80 is coaxially embedded in the drive sleeve 821, the drive shaft 80 rotates coaxially with the drive sleeve 821 and the gear 820.

[0091] Reference Figure 1 , Figure 4 and Figure 5 The adjusting rack 83 is connected to the slide rail seat 81 and meshes with the gear 820. It should be supplemented that the adjusting rack 83 is located at the position of the slide opening B8101.

[0092] In addition, in order to further ensure the connection stability between the drive sleeve 821 and the drive shaft 80, a retractable positioning shaft is connected to the drive shaft 80, and a positioning hole is provided on the inner wall of the drive sleeve 821. When the drive shaft 80 is embedded in the embedding groove 8210 of the drive sleeve 821, the positioning shaft can move outward under the action of the cylinder or hydraulic cylinder, so that the positioning shaft is inserted into the positioning hole, and the drive sleeve 821 and the drive shaft 80 can rotate synchronously at the same speed.

[0093] Finally, the present embodiment also discloses a structure of an adjusting rack 83, by changing the length of the adjusting rack 83, controlling the meshing length of the adjusting rack 83 and the gear 820, further controlling the number of revolutions of the gear 820, thereby controlling the number of revolutions of the oil seat 2 and the punch 3, and finally controlling the positions of the relative ends of the oil seat 2 and the punch 3, specifically, controlling the state of the resistance protrusion 30 aligning with the resistance protrusion cavity 20 or the state of the mold head protrusion 32 aligning with the mold head protrusion cavity 21.

[0094] The adjustment rack 83 includes a fixed rack 830 and a movable rack 831. The fixed rack 830 is fixed on the slide rail seat 81; 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 engaged with the fixed rack 830, and the added movable rack 831 causes the oil seat 2 and the punch 3 to continue to rotate 180°, thereby switching the corresponding ends of the oil seat 2 and the punch 3.

[0095] Furthermore, in order to prevent the driving shaft 80 located in the slide 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 the limit plate 9 via an oblique driving member, the length of the limit plate 9 is the same as the length of the movable rack 831, and the limit plate 9 slides horizontally in the slide B8101. Then, when the movable rack 831 disengages from the fixed rack 830, the limit plate 9 is driven by the oblique driving member to move into the slide B8101 until the side wall of the limit plate 9 is flush with the inner wall of one side of the slide A8100 or the slide C8102, and the driving shaft 80 is constrained by the limit plate 9, so that the driving shaft 80 cannot rotate.

[0096] Among them, refer to Figure 7 The oblique driving member is composed of a driving wedge, a driven wedge and an oblique connecting rod, wherein the limit plate 9 is a T-shaped structure, and the vertical end of the limit plate 9 slides horizontally on the inner wall of the sliding opening B8101. The driving wedge is fixed on the moving rack 831, the driven wedge slides on the slide rail seat 81, and the two ends of the oblique connecting rod are rotatably connected with the driven wedge and the limit plate 9. When the moving rack 831 moves toward the fixed rack 830, the inclined surface of the driving wedge resists the driven wedge to move into the slide rail seat 81, and then the limit plate 9 moves into the sliding opening B8101 through the driving of the oblique connecting rod.

[0097] It should be added that the horizontal movement of the movable rack 831 is driven by any linear drive unit such as a cylinder or a push rod motor in the prior art.

[0098] A method for using a liquid die forging punch with a lubrication channel, wherein lubricating oil is applied to the punch 3, comprising the following steps:

[0099] S1, the die forging punch assembly moves downward: the movable seat 70 is driven downward by the vertical driving member, so that the die forging punch assembly moves downward relative to the die seat 1, at which time, the abutting protrusion 30 is aligned with the abutting protrusion cavity 20;

[0100] S2, switching the end position of the oil seat 2 and the punch 3: the horizontal driving member drives the vertical driving member and the movable seat 70 to move relative to each other, and the oil seat 2 and the punch 3 move to the end in opposite directions; the horizontal driving member drives the vertical driving member and the movable seat 70 to move in opposite directions again, and at the same time, the movable rack 831 moves toward the fixed rack 830, and after the gear 820 engages with the added adjustment rack 83, the drive shaft 80 is disengaged from the sliding port B8101, and the die head protrusion 32 is aligned with the die head protrusion cavity 21 until the oil lubrication cavity 4 is formed, and the pressure valve 6 is opened;

[0101] S3, the process of adding lubricating oil to the die head protrusion 32: the lubricating oil is transferred from the liquid storage chamber B221 to the liquid transfer chamber 222, and then enters the oil lubrication chamber 4, and the lubricating oil is attached to the surface of the die head protrusion 32. The lubricating liquid in the oil lubrication chamber 4 enters the liquid storage chamber A220 through the lubricating liquid guide port 3211 and the liquid inlet 2200;

[0102] S4, switch the end position of the oil seat 2 and the punch 3 again: the horizontal driving member drives the vertical driving member and the movable seat 70 to move relative to each other, and the oil seat 2 and the punch 3 move to the end in opposite directions; the horizontal driving member drives the vertical driving member and the movable seat 70 to move in opposite directions again, and at the same time, the movable rack 831 moves in the direction of disengaging from the fixed rack 830, and the driving shaft 80 disengages from the sliding port B8101 by reducing the meshing length between the gear 820 and the adjusting rack 83, and the contact protrusion 30 is aligned with the contact protrusion cavity 20;

[0103] At the same time, during this process, when the liquid storage chamber A220 is located above the liquid storage chamber B221, the gravity valve 5 opens, and the lubricating liquid in the liquid storage chamber A220 flows to the liquid storage chamber B221;

[0104] S5. Reset the die forging punch assembly: drive the movable seat 70 upward through the vertical drive member, so that the die forging punch assembly moves upward relative to the die base 1 until the die base 1, the oil seat 2 and the punch 3 fit together, and then moves downward with the die base 1, and the die forging punch assembly moves downward with the die base 1.

[0105] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A liquid die forging punch with a lubrication channel, comprising a die base (1), characterized in that: A die forging punch assembly is provided below the die base (1), and the die forging punch assembly comprises an oil seat (2) and a punch (3); The punch (3) is composed of a resisting protrusion (30), a connecting seat (31) and a die head protrusion (32), wherein the connecting seat (31) is connected between the resisting protrusion (30) and the die head protrusion (32); The two ends of the oil seat (2) are respectively provided with a conflicting protrusion cavity (20) and a die head protrusion cavity (21) corresponding to the conflicting protrusion (30) and the die head protrusion (32); an oil storage cavity (22) is provided in the oil seat (2), and the oil storage cavity (22) and the die head protrusion cavity (21) are communicated; The oil seat (2) moves relative to the punch (3), and the side walls of the oil seat (2) and the punch (3) are both provided with a rotating drive member (8), the rotating drive member (8) drives the oil seat (2) and the punch (3) to rotate, switching the state of the abutting protrusion (30) aligning with the abutting protrusion cavity (20) or the state of the die head protrusion (32) aligning with the die head protrusion cavity (21).

2. A liquid die forging punch with a lubrication channel according to claim 1, characterized in that: The die head protrusion (32) comprises: A punch seat (320), wherein an oil lubrication cavity (4) is formed between the punch seat (320) and the die 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 die head protrusion cavity (21); and the side wall of the abutment seat (321) is provided with a abutment ring (3210), and the abutment ring (3210) is provided with a plurality of lubricating liquid guide ports (3211).

3. A liquid die forging punch with a lubrication channel according to claim 2, characterized in that: A sealing ring (210) is slidably disposed at the notch of the protruding cavity (21) of the die head, and the sealing ring (210) and the abutment ring (3210) are aligned.

4. The liquid die forging punch with a lubrication channel according to claim 3, characterized in that: The oil storage chamber (22) comprises 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 via a guide port A (223); a circular liquid inlet (2200) is provided on the side of the liquid storage chamber A (220); the liquid inlet (2200) is located in the lubricating 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 via a flow guide port B (224); The liquid transfer cavity (222) is communicated with the die head protrusion cavity (21).

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

6. The liquid die forging punch with a lubrication channel according to claim 1, characterized in that: A relative linear drive member (7) is provided between the side wall of the oil seat (2) and the side wall of the punch (3), and the relative linear drive member (7) comprises: A movable seat (70) moves horizontally perpendicular to the side wall of the oil seat (2) and the punch (3); The connecting rods (71) are in two groups, wherein the two ends of the connecting rods (71) in one group are respectively connected to the side wall of the oil seat (2) and the side wall of the movable seat (70), and the two ends of the connecting rods (71) in the other group are respectively connected to the side wall of the punch (3) and the side wall of the movable seat (70).

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

8. The liquid die forging punch with a lubrication channel according to claim 7, characterized in that: The rotary drive member (8) comprises: The drive shaft (80) is in a prismatic structure and is arranged at the center of the side walls of the oil seat (2) and the punch (3); A slide rail seat (81) is composed of a drive shaft slide rail (810), a connecting arm (811) and a movable seat slide rail (812), wherein the connecting arm (811) is connected between the drive shaft slide rail (810) and the movable seat slide rail (812), and the movable seat slide rail (812) is used for radial linear sliding of the movable seat (70); the drive shaft slide rail (810) is used for sliding of the drive shaft (80), 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 set (82) is composed of a gear (820) and a drive shaft sleeve (821) fixed together, the slide rail seat (81) is also provided with a sliding opening D (8103) for the drive shaft sleeve (821) to slide, 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; The adjusting rack (83) is connected to the slide rail seat (81) and meshes with the gear (820).

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

10. A method for using a liquid die forging punch with a lubrication channel, using the liquid die forging punch with a lubrication channel as claimed in any one of claims 1 to 9, characterized in that: Applying lubricating oil to the punch (3) comprises the following steps: S1. The die forging punch assembly moves downward: the movable seat (70) is driven downward by a vertical driving member, so that the die forging punch assembly moves downward relative to the die seat (1); S2, switching the oil seat (2) and the punch (3) to the end position: the horizontal driving member drives the vertical driving member and the movable seat (70) to move relative to each other, and the oil seat (2) and the punch (3) move to the end in opposite directions; the horizontal driving member drives the vertical driving member and the movable seat (70) to move in opposite directions again, and at the same time, the movable rack (831) moves in the direction of the fixed rack (830), and after the gear (820) is engaged with the added adjustment rack (83), the drive shaft (80) is disengaged from the sliding port B (8101), and the die head protrusion (32) is aligned with the die head protrusion cavity (21), forming an oil lubrication cavity (4), and the pressure valve (6) is opened; S3, the process of adding lubricating oil to the die head protrusion (32): the lubricating oil is transferred from the liquid storage chamber B (221) to the liquid transfer chamber (222), and then enters the oil lubrication chamber (4), and the lubricating oil is attached to the surface of the die head protrusion (32). The lubricating liquid in the oil lubrication chamber (4) enters the liquid storage chamber A (220) through the lubricating liquid guide port (3211) and the liquid inlet (2200); S4, switching the end positions of the oil seat (2) and the punch (3) again: the horizontal driving member drives the vertical driving member and the movable seat (70) to move relative to each other, and the oil seat (2) and the punch (3) move in opposite directions to the end; the horizontal driving member drives the vertical driving member and the movable seat (70) to move in opposite directions again, and at the same time, the movable rack (831) moves in the direction of disengaging from the fixed rack (830), and the driving shaft (80) is disengaged from the sliding port B (8101) by reducing the meshing length between the gear (820) and the adjusting rack (83), and then the abutting protrusion (30) is aligned with the abutting protrusion cavity (20); At the same time, during this process, when the liquid storage chamber A (220) is located above the liquid storage chamber B (221), the gravity valve 5 is opened, and the lubricating liquid in the liquid storage chamber A (220) flows to the liquid storage chamber B (221); S5. Resetting the die forging punch assembly: The movable seat (70) is driven upward by the vertical driving member, so that the die forging punch assembly moves upward relative to the die base (1) until the die base (1), the oil base (2) and the punch (3) are in contact with each other, and then the die forging punch assembly moves downward along with the die base (1).

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