A continuous stamping die and method for a car seat slide rail blank

Abstract

The present invention discloses a continuous stamping die and method for a material sheet of an automobile seat slide rail, which relates to the technical field of automobile seat accessory dies and includes a pressing machine. An upper die and a lower die are arranged inside the pressing machine. A plurality of outer cylinders are embedded inside the lower die. An inner cylinder is fixedly connected inside the outer cylinder. An oil cavity is arranged between the inner cylinder and the outer cylinder. A piston block is slidably connected inside the inner cylinder. A plurality of flow channels are formed inside the piston block. Closing doors are hinged on the flow channels. A plurality of oil outlet holes are formed in the inner cylinder. When the upper die moves downward, it will contact the buffer rod and drive the buffer rod to move downward. When the buffer rod moves downward, the piston block will move downward inside the inner cylinder. The downward-moving piston block will press the hydraulic oil, causing the hydraulic oil to move above the piston block through the flow channels on the piston block. The pressure exerted on the piston rod by the hydraulic oil during its movement in the flow channels plays a role in energy absorption and shock absorption.

Description

Technical Field

[0001] The invention relates to the technical field of automobile seat accessory molds, in particular to a continuous stamping mold and method for automobile seat slide rail pieces. Background Art

[0002] Mold refers to various molds and tools used in industrial production to obtain the desired products by injection molding, blow molding, extrusion, die casting or forging, smelting and stamping. In short, the mold is a tool used to make molded objects. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the shape of the object by changing the physical state of the molded material. It is known as the "mother of industry". The development level of mold production is one of the important indicators of the level of mechanical manufacturing. The Chinese patent discloses a stamping die for automobile seat slide rails (authorization announcement number CN210702098U). The patented technology can fix the bottom of the block and the top of the sleeve to compress the first spring, and the two sliders The second spring can be compressed, and the compressed first spring and second spring can reduce the vibration of the lower mold so that the lower mold will not be subjected to too much pressure, effectively protecting the mold and preventing the workpiece accuracy from being reduced due to excessive vibration during the stamping process, thereby improving the quality of the automobile seat slide rail sheet and reducing the production cost caused by mold damage. However, the above scheme only uses a single spring to play the role of shock absorbing and protecting the mold, and does not protect the pressure generated between the upper and lower molds, which will cause the upper and lower molds to collide and cause damage to the upper and lower molds. Therefore, technical personnel in this field provide a continuous stamping mold and method for automobile seat slide rail sheets to solve the problems raised in the above background technology. Summary of the invention

[0003] The object of the present invention is to provide a continuous stamping die and method for automobile seat slide rail sheets to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A continuous stamping die for a car seat slide rail material sheet, comprising a die press, wherein a lower die and an upper die are arranged inside the die, a plurality of outer cylinders are embedded inside the lower die, an inner cylinder is fixedly connected inside the outer cylinder, an oil cavity is arranged between the inner cylinder and the outer cylinder, a piston block is slidably connected inside the inner cylinder, a plurality of flow grooves are arranged inside the piston block, a closing door is hinged on the flow groove, and a plurality of oil outlet holes are arranged on the inner cylinder;

[0006] An oil inlet pipe is provided at the bottom side where the inner cylinder is adjacent to the outer cylinder. The oil inlet pipe is fixedly and through-connected to the inner cylinder and is in through-connection with the oil cavity. A sealing block is arranged inside the oil inlet pipe. One end of the sealing block is fixedly connected to a return spring. One end of the return spring is fixedly connected to the inner wall of the oil inlet pipe through a bracket. An oil inlet and an oil outlet are formed on the oil inlet pipe, and the oil inlet and the oil outlet are in through-connection;

[0007] A piston rod is fixedly connected to the upper side of the piston block. A buffer rod is fixedly connected to the upper side of the piston rod. A buffer spring is sleeved on the buffer rod, and the buffer spring is a matching component for the buffer rod and the opening of the outer cylinder.

[0008] As a further scheme of the present invention: wherein, the flow-through groove penetrates through the piston block, and a closing door is installed at the upper end of the flow-through groove, and the maximum opening and closing angle of the closing door is 60°.

[0009] As a further scheme of the present invention: wherein, the oil outlet hole is in through-connection with the oil cavity, and the moving height of the piston block in the inner cylinder is flush with the oil outlet hole.

[0010] As a further scheme of the present invention: wherein, the sealing block and the oil inlet are matching components, and a sealing strip is wrapped on the side of the sealing block adjacent to the oil inlet.

[0011] As a further scheme of the present invention: wherein, a fixing block is fixedly connected to the side of the upper mold adjacent to the lower mold. A rubber plug is installed on the side of the fixing block adjacent to the lower mold through a shock-absorbing spring. A toggle rod is arranged on one side of the rubber plug. A ball is movably connected to the lower end of the toggle rod. The upper end of the toggle rod is movably connected to the fixing block through a rotating shaft;

[0012] A positioning seat is fixedly connected to the side of the lower mold adjacent to the upper mold. A positioning hole is formed in the positioning seat, and an inclined surface is arranged on the side of the positioning seat.

[0013] As a further scheme of the present invention: wherein, a torsion spring is arranged at the connection between the toggle rod and the rotating shaft, and the torsion spring and the toggle rod are matching components.

[0014] As a further scheme of the present invention: wherein, a limit bolt is arranged between the toggle rod and the rubber plug, and the limit bolt is screwed on the fixing block.

[0015] As a further scheme of the present invention: wherein, the ball on the toggle rod and the inclined surface are matching components; the positioning hole and the rubber plug are matching components.

[0016] An automobile seat slide rail sheet continuous stamping die and method, and the specific operation steps are as follows:

[0017] Step 1: Place the seat rail sheet to be processed on the lower die, with its position between the positioning seats, and then turn on the press machine to start the work of the lower die and the upper die;

[0018] Step 2: When the upper die moves downward, it will contact the buffer rod and drive the buffer rod to move downward. When the buffer rod moves downward, the piston block will move downward inside the inner cylinder. The downward moving piston block will press the hydraulic oil, causing the hydraulic oil to move above the piston block through the flow channels on the piston block. The pressure exerted by the hydraulic oil on the piston rod during the movement in the flow channels plays a role in energy absorption and shock absorption. Moreover, when the hydraulic oil moves in the flow channels, due to the smaller diameter inside the flow channels and the faster flow rate of the hydraulic oil, heat will be generated, thus converting kinetic energy into heat energy and further playing a role in shock absorption and buffering;

[0019] Step 3: When the upper die moves upward, after the buffer rod loses pressure, the buffer spring will drive the buffer rod to reset. When the buffer rod resets and moves upward, it will drive the piston block to move upward, so that the hydraulic oil on the piston block flows into the interior of the oil cavity through the oil outlet hole. The oil outlet hole is of a one-way hole structure. At the same time, when the piston block moves upward, the hinged closing door will close, preventing the hydraulic oil from flowing into the bottom side of the piston block through the flow channels. At the same time, when the piston block moves upward, a suction force will be generated, and the hydraulic oil will exert pressure on the oil cavity when entering the oil cavity. Under the dual action of the forces, the sealing block inside the inlet pipe will move upward, so that the hydraulic oil enters the interior of the inner cylinder through the inlet pipe, facilitating the next buffering and shock absorption of the downward moving upper die; when the piston block moves downward, the sealing block and the oil inlet are in a closed state, preventing the hydraulic oil from flowing out of the inlet pipe;

[0020] Step 4: When the upper die moves downward, it will drive the fixed block to move downward, inserting the rubber plug into the positioning hole, playing a role in buffering and shock absorption for the positioning seat. When the toggle rod on one side contacts the inclined surface during downward movement, it will tilt, enabling the toggle rod to play a role in toggling the automotive seat rail sheet. When the placement position of the automotive seat rail sheet is not precise enough, the downward moving toggle rod can adjust the automotive seat rail sheet so that its position will not shift, facilitating the precise processing by the press machine and thus avoiding precision errors.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. When the upper die moves downward in the present invention, it will contact the buffer rod, driving the buffer rod to move downward. When the buffer rod moves downward, the piston block will move downward inside the inner cylinder. The downward-moving piston block will press the hydraulic oil, causing the hydraulic oil to move above the piston block through the flow groove on the piston block. The pressure exerted on the piston rod by the hydraulic oil during its movement in the flow groove plays a role in absorbing energy and damping vibration. Moreover, when the hydraulic oil moves in the flow groove, due to the relatively small inner diameter of the flow groove and the relatively fast flow rate of the hydraulic oil, heat will be generated. In this way, kinetic energy can be converted into heat energy, further playing a role in damping and buffering, preventing the upper die and the lower die from being damaged due to impact, and playing a role in protecting the equipment;

[0023] 2. When the upper die moves downward in the present invention, the toggle rod will tilt when it contacts the inclined surface during its downward movement, enabling the toggle rod to play a role in toggling the automotive seat slide rail sheet. When the placement position of the automotive seat slide rail sheet is not precise enough, the downward-moving toggle rod can adjust the automotive seat slide rail sheet so that its position will not shift, facilitating the precise processing by the press machine without precision errors, thereby improving the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the split structure of the inner cylinder and the outer cylinder in the present invention;

[0025] Figure 2 is a schematic cross-sectional view of the outer cylinder structure in the present invention;

[0026] Figure 3 is Figure 2 a partial enlarged schematic diagram;

[0027] Figure 4 is a schematic diagram of the overall structure in the present invention;

[0028] Figure 5 is a schematic diagram of the positioning seat structure in the present invention;

[0029] The corresponding relationship between the reference numerals and the component names in the drawings is as follows:

[0030] 1. Press machine; 101. Lower die; 102. Upper die; 2. Buffer rod; 201. Piston rod; 202. Buffer spring; 203. Piston block; 2031. Flow groove; 2032. Closing door; 204. Oil outlet hole; 205. Inner cylinder; 206. Oil inlet pipe; 2061. Oil inlet; 2062. Return spring; 2063. Sealing block; 2064. Oil outlet; 207. Outer cylinder; 3. Oil cavity; 4. Fixed block; 401. Damping spring; 402. Rubber plug; 403. Toggle rod; 404. Rotating shaft; 405. Ball; 406. Limit bolt; 5. Positioning seat; 501. Positioning hole; 502. Inclined surface. Detailed implementation mode

[0031] Please refer to Figures 1 to 5 : A continuous stamping die for automotive seat slide sheet metal, including a stamping machine 1. Inside the stamping machine 1, there is a lower die 101 and an upper die 102. Multiple outer cylinders 207 are embedded inside the lower die 101. An inner cylinder 205 is fixedly connected inside the outer cylinder 207. An oil cavity 3 is arranged between the inner cylinder 205 and the outer cylinder 207. A piston block 203 is slidably connected inside the inner cylinder 205. Multiple flow channels 2031 are opened inside the piston block 203. A closing door 2032 is hinged on the flow channel 2031. The flow channel 2031 penetrates the piston block 203. The closing door 2032 is installed at the upper end of the flow channel 2031. Among them, the maximum opening and closing angle of the closing door 2032 is 60°. Multiple oil outlet holes 204 are opened on the inner cylinder 205. The oil outlet holes 204 are communicated with the oil cavity 3. The moving height of the piston block 203 inside the inner cylinder 205 is flush with the oil outlet holes 204. When the piston block 203 moves upward, the hinged closing door 2032 will be closed, preventing hydraulic oil from flowing through the flow channel 2031 into the bottom side of the piston block 203. At the same time, when the piston block 203 moves upward, a suction force will be generated. When the hydraulic oil enters the oil cavity 3, it will exert a pressure on the oil cavity 3. Under the dual action of the forces, the sealing block 2063 inside the oil inlet pipe 206 will move upward, so that the hydraulic oil enters the inner cylinder 205 through the oil inlet pipe 206;

[0032] At the adjacent bottom side of the inner cylinder 205 and the outer cylinder 207, there is an oil inlet pipe 206. The oil inlet pipe 206 is fixedly and communicatively connected to the inner cylinder 205 and is communicated with the oil cavity 3. A sealing block 2063 is arranged inside the oil inlet pipe 206. One end of the sealing block 2063 is fixedly connected to a return spring 2062. One end of the return spring 2062 is fixedly connected to the inner wall of the oil inlet pipe 206 through a bracket. An oil inlet 2061 and an oil outlet 2064 are opened on the oil inlet pipe 206. The oil inlet 2061 and the oil outlet 2064 are communicated. When the hydraulic oil enters the oil cavity 3, it will exert a pressure on the oil cavity 3. Under the dual action of the forces, the sealing block 2063 inside the oil inlet pipe 206 will move upward, so that the hydraulic oil enters the inner cylinder 205 through the oil inlet pipe 206, facilitating the buffering and shock absorption of the upper die 102 during the next downward pressing; when the piston block 203 moves downward, the sealing block 2063 and the oil inlet 2061 are in a closed state, preventing the hydraulic oil from flowing out of the oil inlet pipe 206;

[0033] A piston rod 201 is fixedly connected to the upper side of the piston block 203. A buffer rod 2 is fixedly connected to the upper side of the piston rod 201. A buffer spring 202 is sleeved on the buffer rod 2. The buffer spring 202 is a matching component for the buffer rod 2 and the mouth of the outer cylinder 207.

[0034] Further, the sealing block 2063 and the oil inlet 2061 are mating components, and a sealing strip is wrapped around the side of the sealing block 2063 adjacent to the oil inlet 2061.

[0035] Further, a fixing block 4 is fixedly connected to the side of the upper mold 102 adjacent to the lower mold 101. A rubber plug 402 is installed on the side of the fixing block 4 adjacent to the lower mold 101 through a shock-absorbing spring 401. A toggle rod 403 is provided on one side of the rubber plug 402. A ball 405 is movably connected to the lower end of the toggle rod 403. The upper end of the toggle rod 403 is movably connected to the fixing block 4 through a rotating shaft 404. A torsion spring is provided at the connection between the toggle rod 403 and the rotating shaft 404. The torsion spring and the toggle rod 403 are mating components. The set torsion spring enables the toggle block 403 to reset after losing pressure.

[0036] A positioning seat 5 is fixedly connected to the side of the lower mold 101 adjacent to the upper mold 102. A positioning hole 501 is formed in the positioning seat 5. An inclined surface 502 is provided on the side surface of the positioning seat 5. The ball 405 on the toggle rod 403 and the inclined surface 502 are mating components; the positioning hole 501 and the rubber plug 402 are mating components.

[0037] Further, a limit bolt 406 is provided between the toggle rod 403 and the rubber plug 402, and the limit bolt 406 is screwed on the fixing block 4.

[0038] An automotive seat slide rail blank continuous stamping die and method, the specific operation steps are as follows:

[0039] Step 1: Place the seat slide rail blank to be processed on the lower mold 101, and its position is between the positioning seats 5. Then turn on the press 1 to make the lower mold 101 and the upper mold 102 start working;

[0040] Step 2: When the upper mold 102 moves downward, it will contact the buffer rod 2 and drive the buffer rod 2 to move downward. When the buffer rod 2 moves downward, the piston block 203 will move downward inside the inner cylinder 205. The downward-moving piston block 203 will press the hydraulic oil, causing the hydraulic oil to move above the piston block 203 through the flow groove 2031 on the piston block 203. The hydraulic oil will absorb energy and dampen the pressure on the piston rod 201 during the movement in the flow groove 2031. And when the hydraulic oil moves in the flow groove 2031, since the inner diameter of the flow groove 2031 is small and the flow rate of the hydraulic oil is fast, heat will be generated, thus converting kinetic energy into heat energy and further playing a role in shock absorption and buffering;

[0041] Step 3: When the upper die 102 moves upward, after the buffer rod 2 loses pressure, the buffer spring 202 will drive the buffer rod 2 to reset. When the buffer rod 2 resets and moves upward, it will drive the piston block 203 to move upward, so that the hydraulic oil on the piston block 203 flows into the interior of the oil chamber 3 through the oil outlet hole 204. The oil outlet hole 204 is of a one-way hole structure. At the same time, when the piston block 203 moves upward, the hinged closing door 2032 will close, preventing the hydraulic oil from flowing into the bottom side of the piston block 203 through the flow groove 2031. At the same time, when the piston block 203 moves upward, a suction force will be generated. When the hydraulic oil enters the interior of the oil chamber 3, it will exert a pressure on the oil chamber 3. Under the dual action of forces, the sealing block 2063 inside the oil inlet pipe 206 will move upward, so that the hydraulic oil enters the interior of the inner cylinder 205 through the oil inlet pipe 206, facilitating the next buffering and shock absorption of the downward-moving upper die 102; when the piston block 203 moves downward, the sealing block 2063 and the oil inlet 2061 are in a closed state, preventing the hydraulic oil from flowing out of the oil inlet pipe 206;

[0042] Step 4: When the upper die 102 moves downward, it will drive the fixed block 4 to move downward, so that the rubber plug 402 is inserted into the positioning hole 501, playing a role in shock absorption and buffering for the positioning seat 5. When the side toggle rod 403 contacts the inclined surface 502 during downward movement, it will tilt, enabling the toggle rod 403 to play a role in toggling the automotive seat track sheet. When the position of the automotive seat track sheet is not precise enough, the downward-moving toggle rod 403 can adjust the automotive seat track sheet so that its position will not shift, facilitating the precise processing of the die press 1 and thus preventing precision errors.

[0043] Working principle:

[0044] The above-mentioned is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A continuous stamping die for automotive seat slide sheet metal, comprising a stamping machine (1), characterized in that, Inside the die press (1), there is a lower die (101) and an upper die (102). Inside the lower die (101), there are multiple outer cylinders (207) fitted. Inside the outer cylinder (207), there is an inner cylinder (205) fixedly connected. Between the inner cylinder (205) and the outer cylinder (207), there is an oil chamber (3). Inside the inner cylinder (205), there is a piston block (203) slidably connected. Inside the piston block (203), there are multiple flow channels (2031). On the flow channels (2031), there is a closing door (2032) hinged. On the inner cylinder (205), there are multiple oil outlet holes (204); At the adjacent bottom side of the inner cylinder (205) and the outer cylinder (207), there is an oil inlet pipe (206). The oil inlet pipe (206) is fixedly and through-connected to the inner cylinder (205) and is in communication with the oil chamber (3). Inside the oil inlet pipe (206), there is a sealing block (2063). One end of the sealing block (2063) is fixedly connected to a return spring (2062). One end of the return spring (2062) is fixedly connected to the inner wall of the oil inlet pipe (206) through a bracket. On the oil inlet pipe (206), there are an oil inlet (2061) and an oil outlet (2064), and the oil inlet (2061) and the oil outlet (2064) are in communication; On the upper side of the piston block (203), there is a piston rod (201) fixedly connected. On the upper side of the piston rod (201), there is a buffer rod (2). A buffer spring (202) is sleeved on the buffer rod (2). The buffer spring (202) is a cooperating member for the buffer rod (2) and the mouth of the outer cylinder (207); On the adjacent side of the upper die (102) and the lower die (101), there is a fixed block (4). On the adjacent side of the fixed block (4) and the lower die (101), there is a rubber plug (402) installed through a shock-absorbing spring (401). On one side of the rubber plug (402), there is a toggle rod (403). The lower end of the toggle rod (403) is movably connected to a ball (405). The upper end of the toggle rod (403) is movably connected to the fixed block (4) through a rotating shaft (404); On the adjacent side of the lower die (101) and the upper die (102), there is a positioning seat (5). On the positioning seat (5), there is a positioning hole (501). On the side of the positioning seat (5), there is an inclined surface (502). At the connection of the toggle rod (403) and the rotating shaft (404), there is a torsion spring, and the torsion spring is a cooperating member with the toggle rod (403). Between the toggle rod (403) and the rubber plug (402), there is a limit bolt (406). The limit bolt (406) is screwed on the fixed block (4). The ball (405) on the toggle rod (403) is a cooperating member with the inclined surface (502); The positioning hole (501) and the rubber plug (402) are cooperating members.

2. A continuous stamping die for automotive seat slide sheet metal, characterized in that, The flow channels (2031) penetrate the piston block (203). The closing door (2032) is installed at the upper end of the flow channels (2031), and the maximum opening and closing angle of the closing door (2032) is 60°.

3. The continuous stamping die for the sheet of an automobile seat slide rail according to claim 1, wherein The oil outlet hole (204) communicates with the oil chamber (3), and the moving height of the piston block (203) inside the inner cylinder (205) is flush with the oil outlet hole (204).

4. A continuous stamping die for automotive seat slide sheet metal, characterized in that, The sealing block (2063) and the oil inlet (2061) are mating components, and a sealing strip is wrapped around one side of the sealing block (2063) adjacent to the oil inlet (2061).

5. A continuous stamping method for a sheet of an automotive seat slide rail, applied to a continuous stamping die for a sheet of an automotive seat slide rail according to any one of claims 1-4, characterized in that, The specific operation steps are as follows: Step 1: Place the seat slide rail blank to be processed on the lower die (101), and its position is between the positioning seats (5). Then turn on the die pressing machine (1) to make the lower die (101) and the upper die (102) start working; Step 2: When the upper die (102) moves downward, it will contact the buffer rod (2) and drive the buffer rod (2) to move downward. When the buffer rod (2) moves downward, it will cause the piston block (203) to move downward inside the inner cylinder (205). The downward-moving piston block (203) will press the hydraulic oil, causing the hydraulic oil to move above the piston block (203) through the flow groove (2031) on the piston block (203). The pressure exerted on the piston rod (201) by the hydraulic oil during its movement in the flow groove (2031) plays a role in absorbing energy and damping vibration. Moreover, when the hydraulic oil moves in the flow groove (2031), due to the smaller diameter inside the flow groove (2031) and the faster flow rate of the hydraulic oil, heat will be generated, thus converting kinetic energy into heat energy and further playing a role in shock absorption and buffering; Step 3: When the upper die (102) moves upward, after the buffer rod (2) loses pressure, the buffer spring (202) will drive the buffer rod (2) to reset. When the buffer rod (2) resets and moves upward, it will drive the piston block (203) to move upward, so that the hydraulic oil on the piston block (203) flows into the interior of the oil chamber (3) through the oil outlet hole (204). The oil outlet hole (204) has a one-way hole structure. At the same time, when the piston block (203) moves upward, it will cause the hinged closing door (2032) to close, preventing the hydraulic oil from flowing into the bottom side of the piston block (203) through the flow groove (2031). At the same time, when the piston block (203) moves upward, a suction force will be generated, and the hydraulic oil entering the interior of the oil chamber (3) will exert pressure on the oil chamber (3). Under the dual action of the forces, the sealing block (2063) inside the oil inlet pipe (206) will move upward, so that the hydraulic oil enters the interior of the inner cylinder (205) through the oil inlet pipe (206), facilitating the next buffering and damping of the downward-moving upper die (102); when the piston block (203) moves downward, the sealing block (2063) and the oil inlet (2061) are in a closed state, preventing the hydraulic oil from flowing out of the oil inlet pipe (206); Step 4: When the upper mold (102) moves downward, it will drive the fixed block (4) to move downward, so that the rubber plug (402) is inserted into the positioning hole (501), playing a role in shock absorption and buffering for the positioning seat (5). When the toggle rod (403) on one side contacts the inclined surface (502) during downward movement, it will tilt, enabling the toggle rod (403) to play a role in toggling the automotive seat slide rail strip. When the position of the automotive seat slide rail strip is not precise enough, the downward-moving toggle rod (403) can adjust the automotive seat slide rail strip so that its position will not shift, facilitating the precise processing by the die press (1), and thus preventing precision errors from occurring.

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