A multi-station energy-saving hydraulic press

Abstract

The present invention relates to the field of hydraulic technology, and specifically to a multi-station energy-saving hydraulic press, comprising a machine body, a support seat is fixedly installed on the upper outer surface of the machine body near the rear end, a conveying mechanism is fixedly installed on both sides of the machine body near the upper end, a first tooth is provided on the right outer surface of the left conveying mechanism, a disc is fixedly installed on the upper outer surface of the machine body, a turntable is sleeved on the side of the disc, and the lower outer surface of the turntable penetrates and extends to the upper inner surface of the machine body, a second tooth is provided on the side of the turntable, and a support rod is fixedly installed between the disc and the lower inner surface of the machine body, the thrust generated by the second push rod on the material during the movement is used to realize automatic unloading of the material, the thrust generated by the first push rod on the material during the movement is used to realize automatic loading of the material, and the metal spring sheet on the sleeve is used to knock the pipe during the rotation to make the pipe vibrate to prevent the waste remaining after punching from clogging the pipe.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulics, in particular to a multi-station energy-saving hydraulic press. Background Art

[0002] The principle of the multi-station hydraulic press is to use Pascal's law to make a machine that uses liquid pressure transmission. There are many types. It is a machine that uses liquid static pressure to process metal, plastic, rubber, wood, powder and other products. It is often used in pressing processes and pressing forming processes, such as: forging, stamping, cold extrusion, straightening, bending, flanging, thin plate drawing, powder metallurgy, pressing, etc.

[0003] The existing patent (publication number: CN212370965U) is a CNC servo multi-station hydraulic press, including a support frame, an air pump is arranged inside the support frame, an operating table is arranged on the upper end of the air pump, an air bin is arranged on the inner side of the operating table, a movable tube is connected to the inner side of the air bin, an air duct is arranged inside the movable tube, a dustproof net is connected to the inner side of the air duct, and a limit groove is arranged on the upper end of the support frame, a switch is arranged at one end of the support frame, and an electromagnetic device is arranged inside the operating table, which solves the problem of the lack of mold cleaning structure for the operating table of traditional hydraulic presses and provides a technical solution for an operating table with multiple mold fixing effects.

[0004] Compared with the above patent and the prior art, the existing multi-station hydraulic press requires manual operation in the process of loading and unloading materials during stamping. When a large amount of material needs to be loaded into the hydraulic press, more manpower is required, which increases the labor cost and reduces the efficiency of stamping the materials. If the manual handling is improper during the loading and unloading process, there will be danger.

[0005] Therefore, a multi-station energy-saving hydraulic press is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a multi-station energy-saving hydraulic press, which utilizes the thrust generated by the second push rod on the material during movement to realize automatic unloading of the material, utilizes the thrust generated by the first push rod on the material during movement to realize automatic loading of the material, and utilizes the metal spring sheet on the sleeve to knock the pipeline during rotation to cause the pipeline to vibrate to prevent the waste remaining after punching from clogging the pipeline, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-station energy-saving hydraulic press comprises a machine body, a support seat is fixedly installed on the upper outer surface of the machine body near the rear end, a transmission mechanism is fixedly installed on both sides of the machine body near the upper end, a first tooth is provided on the right outer surface of the left transmission mechanism, a disc is fixedly installed on the upper outer surface of the machine body, a turntable is sleeved on the side of the disc, and the lower outer surface of the turntable passes through and extends to the upper inner surface of the machine body, a second tooth is provided on the side of the turntable, a support rod is fixedly installed between the disc and the lower inner surface of the machine body, a first through hole is opened at the edge of the upper outer surface of the turntable, the first through hole passes through and extends to the upper inner surface of the machine body, the number of the first through holes is four groups, and the first through holes are evenly distributed on the circumference, and the upper outer surface of the support seat is fixed A hydraulic cylinder is installed, a hydraulic rod is movably installed in the middle of the outer surface of the lower end of the hydraulic cylinder, the lower end of the hydraulic rod passes through and extends to the bottom of the support seat, and a fixed seat is fixedly installed in the middle of the outer surface of the hydraulic rod. A discharge port is opened on the outer surface of the right side of the machine body near the lower end, and a slide groove is opened at the left center of the outer surface of the upper end of the disc, a sliding block is slidably installed inside the slide groove, and a second push rod is fixedly installed on the upper end of the sliding block, and a third tooth is provided on the rear end outer surface of the second push rod, a spiral rod is fixedly installed on the outer surface of the lower end of the fixed seat near the front end, and a sleeve is rotatably installed on the outer surface of the upper end of the disc directly below the spiral rod, the lower end of the sleeve passes through and extends to the interior of the machine body, and a fourth tooth is fixedly installed on the side of the sleeve near the upper end, and a double-sided synchronous belt is meshed between the outer surface of the sleeve and the second push rod.

[0008] The left conveying mechanism rotates counterclockwise, and the turntable rotates clockwise under the action of the first tooth on the left conveying mechanism. The material is conveyed by the left conveying mechanism and then enters the upper surface of the first through hole. The hydraulic cylinder is started, and the hydraulic rod moves vertically downward along the direction of the first through hole under the action of the hydraulic cylinder. When the hydraulic rod moves to contact with the material, the hydraulic rod will continue to move downward through the first through hole. During the movement, the hydraulic rod will squeeze the material and then punch the material. At the same time, the spiral rod at the lower end of the fixed seat moves vertically downward along the direction of the sleeve under the action of the hydraulic cylinder. When the spiral rod moves to the inside of the sleeve, during the movement inside the sleeve, the spiral rod will drive the sleeve to rotate counterclockwise. The fourth tooth on the sleeve contacts the inner tooth of the double-sided synchronous belt, which will drive the double-sided synchronous belt to rotate counterclockwise. At the same time, the outer tooth of the double-sided synchronous belt contacts the third tooth, which will drive the second push rod on the slider to slide to the right in the slide groove. During the sliding of the second push rod to the right, the material that has been punched on the right side of the turntable will be pushed to the right conveying mechanism for further collection, thereby realizing automatic loading and unloading and improving the working efficiency of stamping.

[0009] Preferably, a first push rod is fixedly mounted on the lower end of the slider, and the first push rod is J-shaped, and the left side of the first push rod is bent to the upper left side of the left transmission mechanism;

[0010] The left conveying mechanism conveys the material to the right side of the turntable. During the sliding of the second push rod to the right, the second push rod drives the slider to move to the right along the slide groove and then drives the first push rod to move to the right. During the moving of the first push rod to the right, a rightward thrust will be given to the conveyed material, pushing the material to the top of the first through hole on the left side of the turntable, thereby realizing automatic loading of the material.

[0011] Preferably, the distance between two materials on the conveying mechanism is one quarter of the circumference of the turntable, the first teeth and the second teeth are meshed, the third teeth and the outer teeth of the double-sided synchronous belt are meshed, the fourth teeth and the inner teeth of the double-sided synchronous belt are meshed, and the spiral rod and the spiral structure on the inner surface of the sleeve are matched;

[0012] In order to enable the material that has been pushed onto the turntable by the first push rod to enter the first through hole smoothly for punching during the loading process, the distance between the two materials on the conveying mechanism is made to be one quarter of the circumference of the turntable, so that after the punching operation is completed, when the turntable rotates a quarter of a circle for the next punching operation, the material can be automatically added to the first through hole on the far left, thereby improving work efficiency. The meshing of the first teeth and the second teeth can enable the conveying mechanism to smoothly drive the turntable to rotate counterclockwise, the meshing of the third teeth and the outer teeth of the double-sided synchronous belt and the meshing of the fourth teeth and the inner teeth of the double-sided synchronous belt ensure that the sleeve drives the double-sided synchronous belt to rotate counterclockwise and then drives the second push rod on the slider to slide to the right in the slide groove, and the spiral rod and the spiral structure on the inner surface of the sleeve cooperate to ensure that the spiral rod drives the sleeve to rotate counterclockwise during the movement inside the sleeve.

[0013] Preferably, a metal spring is fixedly installed on the outer surface of the sleeve near the lower end inside the body, a pipe is fixedly installed inside the body just below the support seat, the right outer surface of the pipe penetrates and extends to the right outer surface of the body, and the right outer surface of the pipe corresponds to the discharge port;

[0014] The hydraulic rod punches holes in the material, and the remaining waste after punching flows out from the discharge port through the pipeline for further collection. When the spiral rod drives the sleeve to rotate counterclockwise, the metal shrapnel on the sleeve rotates with the sleeve counterclockwise. When the metal shrapnel contacts the pipeline during the rotation, it will give the pipeline a knocking force, which makes the pipeline vibrate to prevent the remaining waste after punching from clogging the pipeline.

[0015] Preferably, a cylinder is sleeved on the outer surface of the hydraulic rod near the lower end, the opening of the cylinder faces downward, and second through holes are opened on both sides of the outer surface of the upper end of the cylinder, two groups of symmetrically distributed springs are fixedly installed between the fixing seat and the cylinder, and pressure rods are fixedly installed on both sides of the outer surface of the lower end of the support seat, the pressure rods are located inside the springs, and the lower ends of the pressure rods are just opposite to the second through holes, and an air bag is fixedly installed on the inner surface of the cylinder, and the air bag penetrates into the interior of the cylinder;

[0016] The hydraulic rod moves downward to punch holes in the material. Due to the friction between the outer surface of the hydraulic rod and the inner wall of the punched material, when the punching is completed, the hydraulic rod moves upward, which will bring the punched material away from the upper surface of the turntable, making it difficult to unload. When the hydraulic rod moves downward to the material surface, the cylinder on the hydraulic rod will contact the material in advance. When the cylinder contacts the material, it will cover the material to achieve lateral positioning of the material, thereby reducing the displacement of the material during stamping and causing errors in stamping. After the cylinder covers the material, it stops moving. At this time, the hydraulic rod continues to move downward on the original trajectory until the material is stamped. Since the cylinder stops The hydraulic rod continues to move downward, causing the fixed seat to approach the cylinder, thereby compressing the spring, and the pressure rod moves downward with the fixed seat through the second through hole to the inside of the cylinder, and the airbag inside the cylinder is squeezed by the pressure rod. The compressed airbag will deform and expand toward the inner wall of the cylinder to clamp the material being punched, preventing the hydraulic rod from carrying the punched material away from the punching position on the turntable from the upper surface of the turntable. After the punching is completed, the pressure rod rises and moves out of the second through hole with the fixed seat. At this time, the airbag resets to release the fixation of the material. At the same time, under the elastic reset action of the spring, the cylinder returns to the bottom of the fixed seat.

[0017] Preferably, the lower portion of the inner surface of the cylinder is an arc-shaped structure;

[0018] During the stamping operation, the turntable will rotate a quarter of a turn after each stamping, and will generate inertia after stopping, which can easily cause slight deviation of the material. If the lower end of the inner wall of the cylinder is a parallel surface, it will press the side of the material when the cylinder moves downward, making it impossible to cover the material and complete the positioning of the material. The bottom of the inner wall of the cylinder is set to an arc shape, and the position of the material can be corrected through the arc surface combined with the downward pressure, ensuring that the cylinder can position the material, further improving the accuracy of the stamping.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The thrust generated by the second push rod during the movement of the material is used to realize the automatic unloading of the material, and the thrust generated by the first push rod during the movement of the material is used to realize the automatic loading of the material. The metal spring on the sleeve is used to knock the pipeline during the rotation process to make the pipeline vibrate to prevent the waste remaining after punching from clogging the pipeline;

[0021] 2. The airbag inside the cylinder is squeezed by the pressure rod, so that the airbag clamps the material being punched, avoiding the hydraulic rod from carrying the punched material away from the punching position on the turntable and away from the upper surface of the turntable, thereby improving the accuracy of punching. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the left shaft structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the right shaft side structure of the present invention;

[0024] Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0025] Figure 4 It is a structural schematic diagram of the present invention;

[0026] Figure 5 It is a schematic diagram of the position structure of the upper mold and the cylinder of the present invention.

[0027] In the figure: 1. body; 2. transmission mechanism; 3. first tooth; 4. turntable; 41. second tooth; 42. first through hole; 5. disc; 51. slide; 6. first push rod; 7. second push rod; 71. third tooth; 8. slider; 9. support rod; 10. support seat; 11. hydraulic rod; 12. fixed seat; 13. hydraulic cylinder; 14. screw rod; 15. pressure rod; 16. spring; 17. sleeve; 171. fourth tooth; 172. metal spring; 18. double-sided synchronous belt; 19. pipeline; 20. cylinder; 201. second through hole; 202. air bag; 21. discharge port. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figures 1 to 5 , the present invention provides a technical solution:

[0030] A multi-station energy-saving hydraulic press, such as Figures 1 to 4 As shown, it includes a body 1, a support seat 10 is fixedly installed on the upper outer surface of the body 1 near the rear end, a conveying mechanism 2 is fixedly installed on both sides of the body 1 near the upper end, and a first tooth 3 is provided on the right outer surface of the left conveying mechanism 2, a disc 5 is fixedly installed on the upper outer surface of the body 1, a turntable 4 is sleeved on the side of the disc 5, and the lower outer surface of the turntable 4 penetrates and extends to the upper inner surface of the body 1, and a second tooth 41 is provided on the side of the turntable 4. A support rod 9 is fixedly installed between the disc 5 and the lower inner surface of the body 1. A first through hole 42 is opened at the edge of the upper outer surface of the rotating disc 4. The first through holes 42 penetrate and extend to the upper inner surface of the body 1. The number of the first through holes 42 is four groups, and the first through holes 42 are evenly distributed around the circumference. A hydraulic cylinder 13 is fixedly installed on the upper outer surface of the support seat 10. A hydraulic rod 11 is movably installed in the middle of the lower outer surface of the hydraulic cylinder 13. The lower end of the hydraulic rod 11 penetrates and extends to Below the support seat 10, a fixed seat 12 is fixedly installed in the middle of the outer surface of the hydraulic rod 11, a discharge port 21 is opened near the lower end of the outer surface of the right side of the body 1, a slide groove 51 is opened at the center of the left side of the upper outer surface of the disc 5, a slider 8 is slidably installed inside the slide groove 51, and a second push rod 7 is fixedly installed on the upper end of the slider 8, and a third tooth 71 is provided on the outer surface of the rear end of the second push rod 7, and a spiral rod is fixedly installed on the outer surface of the lower end of the fixed seat 12 near the front end 14, the upper outer surface of the disc 5 is rotatably mounted with a sleeve 17 located just below the spiral rod 14, the lower end of the sleeve 17 penetrates and extends into the interior of the machine body 1, the side of the sleeve 17 near the upper end is fixedly mounted with a fourth tooth 171, a double-sided synchronous belt 18 is meshed between the outer surface of the sleeve 17 and the second push rod 7, the lower end of the slider 8 is fixedly mounted with a first push rod 6, and the first push rod 6 is J-shaped, and the left side of the first push rod 6 is bent to the upper left of the left conveying mechanism 2;

[0031] During operation, the left conveying mechanism 2 rotates counterclockwise, and the turntable 4 rotates clockwise under the action of the first teeth 3 on the left conveying mechanism 2. The material is conveyed by the left conveying mechanism 2 and then enters the upper surface of the first through hole 42. The hydraulic cylinder 13 is started, and the hydraulic rod 11 moves vertically downward along the direction of the first through hole 42 under the action of the hydraulic cylinder 13. When the hydraulic rod 11 moves to contact the material, at this time, the hydraulic rod 11 will continue to move downward through the first through hole 42. During the movement, the hydraulic rod 11 will squeeze the material and then punch the material. At the same time, the spiral rod 14 at the lower end of the fixed seat 12 moves vertically downward along the direction of the sleeve 17 under the action of the hydraulic cylinder 13. When the spiral rod 14 moves to the inside of the sleeve 17, during the internal movement of the sleeve 17, the spiral rod 14 will drive the sleeve 17 to rotate counterclockwise, and the fourth through hole 42 on the sleeve 17 will rotate counterclockwise. The contact between the tooth 171 and the inner tooth of the double-sided synchronous belt 18 will drive the double-sided synchronous belt 18 to rotate counterclockwise. At the same time, the contact between the outer tooth of the double-sided synchronous belt 18 and the third tooth 71 will drive the second push rod 7 on the slider 8 to slide to the right in the slide groove 51. During the sliding of the second push rod 7 to the right, the material that has been punched on the right side of the turntable 4 will be pushed to the right conveying mechanism 2 for further collection, thereby realizing automatic loading and unloading and improving the working efficiency of stamping. The left conveying mechanism 2 conveys the material to the right side of the turntable 4. During the sliding of the second push rod 7 to the right, the second push rod 7 drives the slider 8 to move to the right along the slide groove 51 and then drives the first push rod 6 to move to the right. During the moving of the first push rod 6 to the right, a rightward thrust will be given to the conveyed material, pushing the material to the top of the first through hole 42 on the left side of the turntable 4, thereby realizing automatic loading of the material.

[0032] As an embodiment of the present invention, Figure 3 As shown, the distance between two materials on the conveying mechanism 2 is one-fourth of the circumference of the turntable 4, the first tooth 3 and the second tooth 41 are meshed, the third tooth 71 is meshed with the outer teeth of the double-sided synchronous belt 18, the fourth tooth 171 is meshed with the inner teeth of the double-sided synchronous belt 18, and the spiral rod 14 and the inner surface spiral structure of the sleeve 17 are matched;

[0033] During operation, in order to allow the first push rod 6 to push the material that has been pushed onto the turntable 4 to enter the first through hole 42 smoothly for punching during the loading process, the distance between the two materials on the conveying mechanism 2 is one-fourth of the circumference of the turntable 4, so that after the punching operation is completed, when the turntable 4 rotates a quarter of a circle for the next punching operation, the material can be automatically added to the first through hole 42 on the far left, thereby improving work efficiency. The engagement of the first teeth 3 and the second teeth 41 enables the conveying mechanism 2 to smoothly drive the turntable 4 to rotate counterclockwise, the engagement of the third teeth 71 and the outer teeth of the double-sided synchronous belt 18 and the engagement of the fourth teeth 171 and the inner teeth of the double-sided synchronous belt 18 ensure that the sleeve 17 drives the double-sided synchronous belt 18 to rotate counterclockwise and then drives the second push rod 7 on the slider 8 to slide to the right in the slide groove 51, and the spiral structure of the inner surface of the spiral rod 14 and the sleeve 17 cooperates to ensure that the spiral rod 14 drives the sleeve 17 to rotate counterclockwise during the movement inside the sleeve 17.

[0034] As an embodiment of the present invention, Figure 4 As shown, a metal spring 172 is fixedly installed on the outer surface of the sleeve 17 near the lower end thereof inside the machine body 1, and a pipe 19 is fixedly installed inside the machine body 1 just below the support seat 10, and the right outer surface of the pipe 19 penetrates and extends to the right outer surface of the machine body 1, and the right outer surface of the pipe 19 corresponds to the discharge port 21;

[0035] During operation, the hydraulic rod 11 punches holes in the material, and the waste remaining after punching flows out from the discharge port 21 through the pipe 19 for further collection. When the spiral rod 14 drives the sleeve 17 to rotate counterclockwise, the metal spring 172 on the sleeve 17 rotates with the counterclockwise rotation of the sleeve 17. When the metal spring 172 contacts the pipe 19 during the rotation, it will give the pipe 19 a knocking force, which makes the pipe 19 vibrate to prevent the waste remaining after punching from clogging the pipe 19.

[0036] As an embodiment of the present invention, Figures 1 to 4 As shown, a cylinder 20 is sleeved on the outer surface of the hydraulic rod 11 near the lower end, and the opening of the cylinder 20 faces downward. Second through holes 201 are opened on both sides of the outer surface of the upper end of the cylinder 20. Two groups of symmetrically distributed springs 16 are fixedly installed between the fixed seat 12 and the cylinder 20. Press rods 15 are fixedly installed on both sides of the outer surface of the lower end of the support seat 10. The press rods 15 are located inside the springs 16, and the lower ends of the press rods 15 are just opposite to the second through holes 201. An air bag 202 is fixedly installed on the inner surface of the cylinder 20, and the air bag 202 penetrates into the interior of the cylinder 20. The lower part of the inner surface of the cylinder 20 is an arc-shaped structure.

[0037] During operation, the hydraulic rod 11 moves downward to punch holes in the material. Since there is friction between the outer surface of the hydraulic rod 11 and the inner wall of the punched material, when the punching is completed, the hydraulic rod 11 moves upward, which will bring the punched material away from the upper surface of the turntable 4, which is not conducive to unloading. When the hydraulic rod 11 moves downward to the material surface, the cylinder 20 on the hydraulic rod 11 will contact the material in advance. When the cylinder 20 contacts the material, it will cover the material to achieve lateral positioning of the material, thereby reducing the displacement of the material during punching and causing errors in punching. After the cylinder 20 covers the material, it stops moving. At this time, the hydraulic rod 11 continues to move downward on the original movement trajectory until the material is punched. Since the cylinder 20 stops moving and the hydraulic rod 11 continues to move downward, the fixed seat 12 approaches the cylinder 20, thereby compressing the spring 16, and the pressure rod 15 moves downward with the fixed seat 12 through the second through hole 201 to the inside of the cylinder 20, and the air bag 202 inside the cylinder 20 is squeezed by the pressure rod 15, and is pressed The airbag 202 will deform and expand toward the inner wall of the cylinder 20 to clamp the material being punched, preventing the hydraulic rod 11 from carrying the punched material away from the upper surface of the turntable 4 from the punching position on the turntable 4. After the punching is completed, the pressure rod 15 follows the fixed seat 12 to rise and move out of the second through hole 201. At this time, the airbag 202 resets to release the fixation of the material. At the same time, under the elastic reset action of the spring 16, the cylinder 20 returns to the bottom of the fixed seat 12. During the punching operation, the turntable 4 It will rotate a quarter of a turn after each stamping, and will generate inertia after the rotation stops, which may easily cause a slight deviation of the material. If the lower end of the inner wall of the cylinder 20 is a parallel surface, it will press the side of the material when the cylinder 20 moves downward, making it impossible to cover the material and complete the positioning of the material. The bottom of the inner wall of the cylinder 20 is set to an arc shape, and the position of the material can be corrected through the arc surface combined with the downward pressure, ensuring that the cylinder 20 can position the material, further improving the accuracy of the stamping.

[0038] Working principle:

[0039] During operation, the left conveying mechanism 2 rotates counterclockwise, and the turntable 4 rotates clockwise under the action of the first teeth 3 on the left conveying mechanism 2. The material is conveyed by the left conveying mechanism 2 and then enters the upper surface of the first through hole 42. The hydraulic cylinder 13 is started, and the hydraulic rod 11 moves vertically downward along the direction of the first through hole 42 under the action of the hydraulic cylinder 13. When the hydraulic rod 11 moves to contact the material, at this time, the hydraulic rod 11 will continue to move downward through the first through hole 42. During the movement, the hydraulic rod 11 will squeeze the material and then punch the material. At the same time, the spiral rod 14 at the lower end of the fixed seat 12 moves vertically downward along the direction of the sleeve 17 under the action of the hydraulic cylinder 13. When the spiral rod 14 moves to the inside of the sleeve 17, the spiral rod 14 moves to the inside of the sleeve 17. During the movement of the upper part, the spiral rod 14 will drive the sleeve 17 to rotate counterclockwise, and the fourth tooth 171 on the sleeve 17 will contact the inner tooth of the double-sided synchronous belt 18 to drive the double-sided synchronous belt 18 to rotate counterclockwise. At the same time, the outer tooth of the double-sided synchronous belt 18 will contact the third tooth 71 to drive the second push rod 7 on the slider 8 to slide rightward in the slide groove 51. During the sliding rightward movement of the second push rod 7, the material that has been punched on the right side of the turntable 4 will be pushed to the right conveying mechanism 2 for further collection, and the left conveying mechanism 2 will convey the material to the right side of the turntable 4. During the sliding rightward movement of the second push rod 7, the second push rod 7 will drive the slider 8 to move rightward along the slide groove 51 and then drive the first push rod 6 to move rightward. During the moving rightward movement of the first push rod 6, the material will be conveyed to the The material is pushed to the right by the first push rod 6, and the material is pushed to the top of the first through hole 42 on the left side of the turntable 4, thereby realizing automatic loading and unloading of the material, and improving the working efficiency of the stamping. In order to make the material that has been pushed to the turntable 4 by the first push rod 6 to smoothly enter the first through hole 42 for punching during the loading process, the distance between the two materials on the conveying mechanism 2 is one quarter of the circumference of the turntable 4, so that after the punching operation is completed, when the turntable 4 rotates a quarter of a circle for the next punching operation, the material can be automatically added to the first through hole 42 on the far left, thereby improving the working efficiency. The meshing of the first tooth 3 and the second tooth 41 can enable the conveying mechanism 2 to smoothly drive the turntable 4 to rotate counterclockwise, and the third tooth 71 and the outer surface of the double-sided synchronous belt 18 The meshing of the teeth and the meshing of the fourth teeth 171 and the inner teeth of the double-sided synchronous belt 18 ensure that the sleeve 17 drives the double-sided synchronous belt 18 to rotate counterclockwise, thereby driving the second push rod 7 on the slider 8 to slide rightward in the slide groove 51. The spiral structure of the inner surface of the screw rod 14 and the sleeve 17 cooperates to ensure that the screw rod 14 drives the sleeve 17 to rotate counterclockwise during the movement inside the sleeve 17. The hydraulic rod 11 punches the material, and the residual waste after punching flows out from the discharge port 21 through the pipe 19 for further collection. In the process of the spiral rod 14 driving the sleeve 17 to rotate counterclockwise, the metal spring 172 on the sleeve 17 rotates with the counterclockwise rotation of the sleeve 17. When the metal spring 172 contacts the pipe 19 during the rotation process, it will give the pipe 19 a knocking force.The pipe 19 is vibrated by knocking to prevent the waste remaining after punching from clogging the pipe 19. The hydraulic rod 11 moves downward to punch the material. Since there is friction between the outer surface of the hydraulic rod 11 and the inner wall of the punched material, when the punching is completed, the hydraulic rod 11 moves upward and the punched material is taken away from the upper surface of the turntable 4, which is not conducive to unloading. When the hydraulic rod 11 moves downward to the surface of the material, the cylinder 20 on the hydraulic rod 11 will contact the material in advance. When the cylinder 20 contacts the material, it will cover the material to achieve The material is positioned laterally, thereby reducing the displacement of the material during stamping, which causes errors in stamping. The cylinder 20 stops moving after covering the material. At this time, the hydraulic rod 11 continues to move downward on the original movement trajectory until the material is stamped. Since the cylinder 20 stops moving and the hydraulic rod 11 continues to move downward, the fixed seat 12 approaches the cylinder 20, thereby compressing the spring 16, and the pressure rod 15 moves downward with the fixed seat 12 through the second through hole 201 to the inside of the cylinder 20, and the cylinder 2 is squeezed by the pressure rod 15. 0, the compressed airbag 202 will deform and expand toward the inner wall of the cylinder 20, thereby clamping the material being punched, preventing the hydraulic rod 11 from carrying the punched material away from the upper surface of the turntable 4 from the punching position on the turntable 4. After the punching is completed, the pressure rod 15 follows the fixed seat 12 to rise and move out of the second through hole 201. At this time, the airbag 202 resets to release the fixation of the material. At the same time, under the elastic reset action of the spring 16, the cylinder 20 returns to the bottom of the fixed seat 12. During operation, the turntable 4 will rotate a quarter of a turn after each punching. After the rotation stops, it will generate inertia, which may easily cause the material to slightly deviate. If the lower end of the inner wall of the cylinder 20 is a parallel surface, it will press the side of the material when the cylinder 20 moves downward, making it impossible to cover the material and complete the positioning of the material. The bottom of the inner wall of the cylinder 20 is set to an arc shape, and the arc surface combined with the downward pressure can achieve the position correction of the material, ensuring that the cylinder 20 can position the material, further improving the accuracy of punching.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-station energy-saving hydraulic press, comprising a machine body (1), characterized in that: A support seat (10) is fixedly mounted on the upper outer surface of the body (1) near the rear end, a conveying mechanism (2) is fixedly mounted on both sides of the body (1) near the upper end, a first tooth (3) is provided on the right outer surface of the left conveying mechanism (2), a disc (5) is fixedly mounted on the upper outer surface of the body (1), a rotating disc (4) is sleeved on the side of the disc (5), and the lower outer surface of the rotating disc (4) penetrates and extends to the upper inner surface of the body (1), and a second tooth (3) is provided on the side of the rotating disc (4). teeth (41), a support rod (9) is fixedly installed between the disc (5) and the lower inner surface of the body (1), a first through hole (42) is opened at the edge of the upper outer surface of the rotating disc (4), the first through hole (42) penetrates and extends to the upper inner surface of the body (1), the number of the first through holes (42) is four groups, and the first through holes (42) are evenly distributed around the circumference, a hydraulic cylinder (13) is fixedly installed on the upper outer surface of the support seat (10), and a hydraulic cylinder (13) is movably installed in the middle of the lower outer surface of the hydraulic cylinder (13) A hydraulic rod (11), the lower end of which passes through and extends to the bottom of the support seat (10), a fixed seat (12) is fixedly installed in the middle of the outer surface of the hydraulic rod (11), a discharge port (21) is provided on the right outer surface of the machine body (1) near the lower end, a slide groove (51) is provided at the center of the left side of the upper outer surface of the disc (5), a slider (8) is slidably installed inside the slide groove (51), and a second push rod (7) is fixedly installed on the upper end of the slider (8), and the rear end of the second push rod (7) is provided on the outer side of the second push rod (7). The surface is provided with a third tooth (71); a screw rod (14) is fixedly installed on the outer surface of the lower end of the fixed seat (12) near the front end; a sleeve (17) is rotatably installed on the outer surface of the upper end of the disc (5) directly below the screw rod (14); the lower end of the sleeve (17) penetrates and extends into the interior of the machine body (1); a fourth tooth (171) is fixedly installed on the side surface of the sleeve (17) near the upper end; a double-sided synchronous belt (18) is meshed between the outer surface of the sleeve (17) and the second push rod (7); The distance between two materials on the conveying mechanism (2) is one quarter of the circumference of the turntable (4), the first tooth (3) is meshed with the second tooth (41), the third tooth (71) is meshed with the outer tooth of the double-sided synchronous belt (18), the fourth tooth (171) is meshed with the inner tooth of the double-sided synchronous belt (18), and the spiral structure of the inner surface of the spiral rod (14) and the sleeve (17) is matched; A metal spring (172) is fixedly installed on the outer surface of the sleeve (17) near the lower end thereof and located inside the machine body (1); a pipe (19) is fixedly installed inside the machine body (1) and located directly below the support seat (10); the right outer surface of the pipe (19) penetrates and extends to the right outer surface of the machine body (1), and the right outer surface of the pipe (19) corresponds to the discharge port (21); A cylinder (20) is sleeved on the outer surface of the hydraulic rod (11) near the lower end, the cylinder (20) is opened downward, and second through holes (201) are opened on both sides of the outer surface of the upper end of the cylinder (20). Two groups of symmetrically distributed springs (16) are fixedly installed between the fixed seat (12) and the cylinder (20). A pressure rod (15) is fixedly installed on both sides of the outer surface of the lower end of the support seat (10). The pressure rod (15) is located inside the spring (16), and the lower end of the pressure rod (15) is directly opposite to the second through hole (201). An air bag (202) is fixedly installed on the inner surface of the cylinder (20), and the air bag (202) penetrates into the interior of the cylinder (20).

2. A multi-station energy-saving hydraulic press according to claim 1, characterized in that: A first push rod (6) is fixedly mounted on the lower end of the slider (8), and the first push rod (6) is J-shaped, with the left side of the first push rod (6) bent to the upper left side of the left conveying mechanism (2).

3. The multi-station energy-saving hydraulic press according to claim 1, characterized in that: The lower part of the inner surface of the cylinder (20) is in an arc-shaped structure.

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