High-precision four-column synchronous control hydraulic machine

Abstract

The high-precision four-column synchronous control hydraulic machine comprises a hydraulic machine body, a positioning assembly and a controller, an installation table is arranged on the front end face of the hydraulic machine body, the controller is installed on the upper end face of the installation table, and installation plates are symmetrically installed at the left end and the right end of the hydraulic machine body. The positioning assemblies are arranged on the upper end faces of the mounting plates correspondingly, first rails are arranged on the rear end face of the hydraulic machine body, photoelectric sensors matched with the positioning assemblies are arranged in the first rails, the positioning assemblies are used for being matched with the photoelectric sensors to determine the mold placing positions, and the positioning assemblies and the photoelectric sensors are connected with the controller through guiding. By arranging the positioning assembly and the photoelectric sensor, the die can be accurately limited to be arranged in the center of the hydraulic machine body, so that the pressure borne by a workpiece can be balanced in the machining process, the size, the shape and the surface quality of a machined product meet the requirements, too large errors or defects do not exist, and the precision of the hydraulic machine body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic presses, in particular to a high-precision four-column synchronously controlled hydraulic press. Background Art

[0002] A four-column hydraulic press is a mechanical device that uses the static pressure of hydraulic oil delivered by an oil pump 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, sheet metal drawing, powder metallurgy, pressing, etc. Its principle is to use Pascal's law to make a machine that uses liquid pressure transmission. There are many types of machines, and of course, the uses are also diverse according to needs. For example, according to the type of liquid that transmits pressure, there are two major categories: oil presses and water presses.

[0003] According to the published patent with patent number CN207984045U: a four-column hydraulic press, its oil hydraulic press pressing mold and four-column hydraulic press body are fixed by strong magnet adsorption, disassembly and installation are faster and more convenient, and work efficiency is improved. The liquid pressure transmission pipe and the hydraulic box of the four-column hydraulic press and the hydraulic pump working box are bolted and fixed by snap-on bolt nuts, which is more convenient for the connection and fixation between the liquid pressure transmission pipe and the hydraulic box of the four-column hydraulic press and the hydraulic pump working box, and is convenient for installation and maintenance. However, when placing the mold, due to manual placement, the mold placement position is not accurate enough, which may cause the product size, shape and surface quality to not meet the requirements, and there are excessive errors or defects. Utility Model Content

[0004] The utility model provides a high-precision four-column synchronous control hydraulic press, which has the advantage of high precision and solves the problem of insufficient machining precision caused by manual placement of molds in the prior art.

[0005] In order to achieve the purpose of precise processing, the utility model provides the following technical solution: a high-precision four-column synchronous control hydraulic press, comprising a hydraulic press body, a symmetrically arranged positioning assembly and a controller, the front end face of the hydraulic press body is provided with a mounting platform, the controller is installed on the upper end face of the mounting platform, the left and right ends of the hydraulic press body are symmetrically installed with mounting plates, the positioning assemblies are respectively arranged on the upper end faces of the mounting plates, the rear end face of the hydraulic press body is provided with a first track, a photoelectric sensor cooperating with the positioning assembly is provided in the first track, the positioning assembly is used to cooperate with the photoelectric sensor to determine the mold placement position, and the positioning assembly and the photoelectric sensor are both connected to the controller through a guide.

[0006] Preferably, the positioning assembly includes left and right sliding platforms and a clamp, the left and right sliding platforms are arranged on the upper end surface of the mounting plate, the clamp is arranged on the upper end surface of the left and right sliding platforms, the clamp moves in the front and rear directions, and the upper end surface of the clamp is provided with a photoelectric emitter that cooperates with the photoelectric sensor.

[0007] Preferably, the left and right sliding platforms include a base, a slide, and a second track symmetrically provided on the upper end surface of the base. The lower end surface of the slide is provided with a slider slidably connected to the second track, and the slider extends into the second track and is slidably connected to the second track. The clamp is arranged on the upper end surface of the slide, and a cavity is provided in the base, and an opening is provided on the upper wall of the cavity. A first motor is provided in the cavity, and the first motor extends out of the cavity through the opening. A gear is installed at the output end of the first motor, and a rack meshing with the gear is installed on the lower end surface of the slide.

[0008] The top end face of the sliding block is provided with a guide groove, and the lower end face of the sliding block is provided with a guide block slidably connected to the guide groove. The clamping block is installed on one end of the sliding block facing the hydraulic press body, and the left end face of the mounting block is provided with an equipment plate, and the upper end face of the equipment plate is provided with a second motor, and the output end of the second motor is fixedly connected to the rotating shaft.

[0009] Preferably, a sliding rod is slidably connected in the first track, the photoelectric sensor is mounted on the upper end surface of the sliding rod, and a driving component for driving the sliding rod to move is provided in the first track.

[0010] Preferably, the driving assembly includes a third motor and a threaded rod, the left and right ends of the threaded rod are symmetrically provided with rotating rods, the left and right inner walls of the first track are symmetrically provided with through holes, the rotating rod extends into the through holes and is rotatably connected to the through holes, the right end face of the first track is provided with a fixing plate, the third motor is installed on the upper end face of the fixing plate, the output end of the third motor is fixedly connected to the rotating rod, the outer wall of the sliding rod is provided with a screw hole, and the sliding rod is threadedly connected to the outer wall of the threaded rod through the screw hole.

[0011] Compared with the existing technology, the utility model provides a high-precision four-column synchronous control hydraulic press with the following beneficial effects:

[0012] 1. This high-precision four-column synchronous control hydraulic press can accurately limit the mold arrangement at the center of the hydraulic press body by setting positioning components and photoelectric sensors, so that the pressure on the workpiece during processing can be balanced, and the size, shape and surface quality of the processed product can meet the requirements without excessive errors or defects, thereby improving the precision of the hydraulic press body.

[0013] 2. By setting up left and right sliding tables, fixtures and photoelectric transmitters, the photoelectric transmitters can automatically stop the movement of the left and right sliding tables and fixtures through the cooperation of photoelectric sensors, accurately locate the mold placement, thereby improving the versatility of the positioning components. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the external structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the external structure of the utility model from another angle;

[0016] Figure 3 This is a schematic diagram of the structure of the left and right sliding platforms of the utility model;

[0017] Figure 4 This is a schematic diagram of the bottom structure of the slide plate and the clamp of the utility model;

[0018] Figure 5 This is a cross-sectional view of the base and gear of the utility model;

[0019] Figure 6 This is a cross-sectional view of the base of the utility model;

[0020] Figure 7 This is a cross-sectional view of the first track of the utility model;

[0021] Figure 8 The utility model provides Figure 3 A schematic diagram of the enlarged structure of part a;

[0022] Figure 9 The utility model provides Figure 7 Schematic diagram of the enlarged structure of part b.

[0023] In the figure: 1. Hydraulic press body; 11. Mounting platform; 12. Mounting plate; 13. First track; 131. Sliding rod; 132. Screw hole; 133. Through hole; 14. Photoelectric sensor; 15. Fixing plate; 2. Positioning assembly; 21. Left and right sliding platforms; 211. Base; 2111. Cavity; 2112. Opening; 2113. First motor; 2114. Gear; 2115. Guide groove; 212. Slide plate; 2121. Slider; 2122, rack; 213, second track; 22, fixture; 221, fixed block; 2211, through hole; 2212, bidirectional screw rod; 2213, rotating shaft; 2214, equipment plate; 2215, second motor; 222, sliding block; 2221, threaded hole; 2222, guide block; 223, clamping block; 3, controller; 4, photoelectric transmitter; 5, drive assembly; 51, third motor; 52, threaded rod; 521, rotating rod. DETAILED DESCRIPTION

[0024] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention. Example 1

[0025] See also Figures 1-9 The utility model discloses a high-precision four-column synchronous control hydraulic press, including a hydraulic press body 1, a symmetrically arranged positioning assembly 2 and a controller 3. The front end face of the hydraulic press body 1 is provided with a mounting platform 11, and the controller 3 is installed on the upper end face of the mounting platform 11. The left and right ends of the hydraulic press body 1 are symmetrically installed with mounting plates 12, and the positioning assemblies 2 are respectively arranged on the upper end faces of the mounting plates 12. The rear end face of the hydraulic press body 1 is provided with a first track 13, and a photoelectric sensor 14 that cooperates with the positioning assembly 2 is provided in the first track 13. The positioning assembly 2 is used to cooperate with the photoelectric sensor 14 to determine the mold placement position. The positioning assembly 2 and the photoelectric sensor 14 are both connected to the controller 3 through a guide.

[0026] The above design can accurately limit the mold arrangement at the center of the hydraulic press body 1 by setting the positioning component 2 and the photoelectric sensor 14, so that the pressure on the workpiece during processing can be balanced, and the size, shape and surface quality of the processed product can meet the requirements without excessive errors or defects, thereby improving the precision of the hydraulic press body 1.

[0027] See also Figures 1-6 、 Figure 8The positioning assembly 2 includes a left and right sliding table 21 and a clamp 22. The left and right sliding table 21 is arranged on the upper end surface of the mounting plate 12, and the clamp 22 is arranged on the upper end surface of the left and right sliding table 21. The clamp 22 moves in the front and rear directions. The upper end surface of the clamp 22 is provided with a photoelectric transmitter 4 that cooperates with the photoelectric sensor 14. By setting the left and right sliding table 21, the clamp 22 and the photoelectric transmitter 4, the movement of the left and right sliding table 21 and the clamp 22 can be automatically stopped by the photoelectric transmitter 4 in cooperation with the photoelectric sensor 14, and the mold placement position can be accurately positioned, thereby improving the versatility of the positioning assembly 2. The left and right sliding table 21 includes a base 211, a slide 212, and the upper end surface of the base 211 is symmetrically provided with a second track 2 13, the lower end surface of the slide 212 is provided with a slider 2121 that is slidably connected to the second track 213, the slider 2121 extends into the second track 213 and is slidably connected to the second track 213, the clamp 22 is provided on the upper end surface of the slide 212, the base 211 is provided with a cavity 2111, the upper wall of the cavity 2111 is provided with an opening 2112, a first motor 2113 is provided in the cavity 2111, the first motor 2113 extends out of the cavity 2111 through the opening 2112, the output end of the first motor 2113 is installed with a gear 2114, the lower end surface of the slide 212 is installed with a rack 2122 that meshes with the gear 2114, and by setting the base 2 11. The slide 212, the first motor 2113, the gear 2114 and the rack 2122 can drive the slide 212 to move left and right, thereby causing the clamp 22 on the upper end surface of the slide 212 to move left and right, thereby positioning the left and right positions of the mold. The clamp 22 includes a fixed block 221, a sliding block 222 and a clamping block 223. The fixed blocks 221 are symmetrically arranged on the upper end surface of the slide 212. The front end surface of the fixed block 221 is provided with a through hole 2211. A bidirectional screw rod 2212 is provided between the fixed blocks 221. The front and rear ends of the bidirectional screw rod 2212 are provided with a rotating shaft 2213 rotatably connected to the through hole 2211. The front end surface of the sliding block 222 is provided with a threaded hole 2221 that cooperates with the bidirectional screw rod 2212. The sliding block 222 is threadedly connected to the outer wall of the bidirectional screw rod 2212 through the threaded hole 2221, the upper end surface of the base 211 is provided with a guide groove 2115, the lower end surface of the sliding block 222 is provided with a guide block 2222 slidably connected to the guide groove 2115, the clamping block 223 is installed on the end of the sliding block 222 facing the hydraulic press body 1, the left end surface of the mounting block is provided with an equipment plate 2214, the upper end surface of the equipment plate 2214 is installed with a second motor 2215, the output end of the second motor 2215 is fixedly connected to the rotating shaft 2213, by setting the fixed block 221, the sliding block 222, the clamping block 223, the threaded hole 2221, the bidirectional screw rod 2212 and the second motor 2215,It can drive the clamping blocks 223 closer to each other, thereby positioning the front and rear positions of the mold. Example 2

[0028] Based on the above embodiment 1, please refer to Figure 1 、 Figure 2 、 Figure 7 Figure 9 A sliding rod 131 is slidably connected in the first track 13, and the photoelectric sensor 14 is installed on the upper end surface of the sliding rod 131. A driving component 5 for driving the sliding rod 131 to move is provided in the first track 13. By setting the sliding rod 131 and the driving component 5, the positioning and movement of the photoelectric sensor 14 can be facilitated. The driving component 5 includes a third motor 51 and a threaded rod 52. The left and right ends of the threaded rod 52 are symmetrically provided with rotating rods 521. The left and right inner walls of the first track 13 are symmetrically provided with through holes 133. The rotating rod 52 1 extends into the through hole 133 and is rotatably connected to the through hole 133. The right end surface of the first track 13 is provided with a fixing plate 15. The third motor 51 is installed on the upper end surface of the fixing plate 15. The output end of the third motor 51 is fixedly connected to the rotating rod 521. The outer wall of the sliding rod 131 is provided with a screw hole 132. The sliding rod 131 is threadedly connected to the outer wall of the threaded rod 52 through the screw hole 132. By providing the third motor 51, the threaded rod 52 and the screw hole 132, the sliding rod 131 can be conveniently driven to move.

[0029] The working principle and use process of this utility model:

[0030] When in use, first determine the front and back length of the mold and operate the controller 3 to start the second motor 2215. The second motor 2215 starts to drive the bidirectional screw rod 2212 to rotate, so that the sliding blocks 222 move closer to or away from each other, so that the clamping block 223 can just clamp the outer wall of the mold, turn off the second motor 2215, and then determine the left and right widths of the mold. Operate the controller 3 to start the third motor 51. The third motor 51 drives the threaded rod 52 to rotate and adjust the position of the photoelectric sensor 14. After reaching the specified position, the third motor 51 is turned off, and then operate the controller 3 to start the first motor 2113. The first motor 2113 starts to drive The gear 2114 rotates, and the gear 2114 engages with the rack 2122, so that the slides 212 on both sides slide at the same time. When the slide 212 drives the photoelectric transmitter 4 to move and the photoelectric sensor receives the signal from the photoelectric transmitter, the third motor 51 is turned off. The left, right, front and rear positions of the mold are determined by the clamping block 223 and the sliding block 222 approaching each other, so as to facilitate the placement of the mold. When the clamping block 223 and the sliding block 222 approach each other to determine the position, the mold is placed between the clamping block 223 and the sliding block 222, thereby completing the precise clamping of the mold, and then the controller 3 is operated to reset the positioning component 2.

Claims

1. A high-precision four-column synchronous control hydraulic press, comprising a hydraulic press body (1), symmetrically arranged positioning components (2) and a controller (3), characterized in that: The front end face of the hydraulic press body (1) is provided with a mounting platform (11), the controller (3) is installed on the upper end face of the mounting platform (11), the left and right ends of the hydraulic press body (1) are symmetrically provided with mounting plates (12), the positioning components (2) are respectively arranged on the upper end faces of the mounting plates (12), the rear end face of the hydraulic press body (1) is provided with a first track (13), a photoelectric sensor (14) cooperating with the positioning component (2) is provided in the first track (13), the positioning component (2) is used to cooperate with the photoelectric sensor (14) to determine the placement position of the mold, and the positioning component (2) and the photoelectric sensor (14) are both connected to the controller (3) through a guide.

2. A high-precision four-column synchronous control hydraulic press according to claim 1, characterized in that: The positioning assembly (2) includes left and right sliding platforms (21) and a clamp (22), wherein the left and right sliding platforms (21) are arranged on the upper end surface of the mounting plate (12), and the clamp (22) is arranged on the upper end surface of the left and right sliding platforms (21), wherein the clamp (22) moves in the front-back direction, and the upper end surface of the clamp (22) is provided with a photoelectric transmitter (4) that cooperates with the photoelectric sensor (14).

3. A high-precision four-column synchronous control hydraulic press according to claim 2, characterized in that: The left and right sliding platforms (21) include a base (211) and a slide (212), the upper end surface of the base (211) is symmetrically provided with a second track (213), the lower end surface of the slide (212) is provided with a slider (2121) slidably connected to the second track (213), the slider (2121) extends into the second track (213) and is slidably connected to the second track (213), the clamp (22) is arranged on the upper end surface of the slide (212), and the base ( A cavity (2111) is provided in the slide (211), an opening (2112) is provided on the upper wall of the cavity (2111), a first motor (2113) is provided in the cavity (2111), the first motor (2113) extends out of the cavity (2111) through the opening (2112), a gear (2114) is installed at the output end of the first motor (2113), and a rack (2122) meshing with the gear (2114) is installed on the lower end surface of the slide (212).

4. A high-precision four-column synchronous control hydraulic press according to claim 3, characterized in that: The clamp (22) includes a fixed block (221), a sliding block (222) and a clamping block (223), wherein the fixed block (221) is symmetrically arranged on the upper end surface of the slide plate (212), the front end surface of the fixed block (221) is provided with a through hole (2211), a bidirectional screw rod (2212) is provided between the fixed blocks (221), the front and rear ends of the bidirectional screw rod (2212) are provided with a rotating shaft (2213) rotatably connected to the through hole (2211), the front end surface of the sliding block (222) is provided with a threaded hole (2221) that cooperates with the bidirectional screw rod (2212), and the sliding block (222) is provided with a threaded hole (2221) that cooperates with the bidirectional screw rod (2212). The threaded hole (2221) is threadedly connected to the outer wall of the bidirectional screw (2212); the upper end surface of the base (211) is provided with a guide groove (2115); the lower end surface of the sliding block (222) is provided with a guide block (2222) slidably connected to the guide groove (2115); the clamping block (223) is installed at one end of the sliding block (222) facing the hydraulic press body (1); the left end surface of the mounting block is provided with an equipment plate (2214); the upper end surface of the equipment plate (2214) is installed with a second motor (2215); the output end of the second motor (2215) is fixedly connected to the rotating shaft (2213).

5. The high-precision four-column synchronous control hydraulic press according to claim 1, characterized in that: A sliding rod (131) is slidably connected in the first track (13), the photoelectric sensor (14) is mounted on the upper end surface of the sliding rod (131), and a driving component (5) for driving the sliding rod (131) to move is provided in the first track (13).

6. The high-precision four-column synchronous control hydraulic press according to claim 5, characterized in that: The driving assembly (5) includes a third motor (51) and a threaded rod (52), wherein rotating rods (521) are symmetrically provided at the left and right ends of the threaded rod (52), and through holes (133) are symmetrically provided on the left and right inner walls of the first track (13), wherein the rotating rod (521) extends into the through hole (133) and is rotatably connected to the through hole (133), and a fixing plate (15) is provided on the right end face of the first track (13), wherein the third motor (51) is mounted on the upper end face of the fixing plate (15), and an output end of the third motor (51) is fixedly connected to the rotating rod (521), and a screw hole (132) is provided on the outer wall of the sliding rod (131), wherein the sliding rod (131) is threadedly connected to the outer wall of the threaded rod (52) through the screw hole (132).

Images