High pressure forming equipment

Abstract

The present invention relates to the field of model pressing technology, and in particular to a high-pressure forming device. The lower clamp is driven to slide by a hydraulic component. When the mold needs to be replaced, the lower clamp can be driven by the hydraulic component to move out of the top of the fixed bracket, and the large-volume mold can be directly hoisted or lowered onto the lower clamp. Then the hydraulic component is controlled to drive the lower clamp back to the top of the fixed bracket, and the pressing work can be carried out; the structure of the present invention can quickly replace the mold, and the difficulty of mold change operation is greatly reduced; the second guide rail assembly is set as a lifting structure, and the second guide rail assembly is controlled to rise when the mold needs to be changed. At this time, the wheels on both sides of the lower clamp abut against the second guide rail assembly, and the wheels drive the lower clamp to move on the first guide rail assembly and the second guide rail assembly. When the product is pressed, the second guide rail assembly is controlled to descend. At this time, there is a gap between the wheels and the second guide rail assembly, and the position of the lower clamp is stable.

Description

Technical Field

[0001] The present application relates to the technical field of model pressing, and in particular to a high pressure forming device. Background Art

[0002] With the rapid development of science and technology, high-pressure forming equipment has been widely used. Most high-pressure forming equipment includes upper and lower clamps. The pressing mold is placed between the upper and lower clamps, and materials are added to the mold. The upper and lower clamps are driven close to each other by hydraulic equipment, and the materials in the mold are pressed and formed into products by high pressure. The mold needs to be replaced when pressing different products. Some smaller molds can be changed manually or by robots, while some larger molds need to rely on auxiliary tools such as forklifts to assist in mold change. This not only increases the cost, but also the mold change space in the middle of the high-pressure forming equipment is small. When changing the mold, position calibration is required multiple times to accurately take the model out or put it in the middle of the molding equipment. The mold change efficiency is greatly reduced, which in turn affects the production efficiency. Summary of the invention

[0003] The present invention aims to solve the above-mentioned problem of low efficiency in replacing large molds by auxiliary tools, thereby providing a high-pressure molding device capable of rapid mold change.

[0004] The present invention solves the above-mentioned problem by adopting the following technical solution: A high-pressure forming equipment comprises a fixed bracket and a controller, a lower clamp is arranged on the top of the fixed bracket, an upper clamp which can move vertically is arranged above the lower clamp, the lower clamp is used to place a pressing mold, a boss is fixed on the top of the fixed bracket, the middle position of the lower clamp is overlapped on the boss, the two ends of the lower clamp protrude from the two sides of the boss, and wheels are arranged at the protruding positions, a second guide rail assembly which can be raised and lowered is arranged on the fixed bracket below the wheel, and a first guide rail assembly is arranged at the front end of the fixed bracket; a hydraulic assembly is arranged on the fixed bracket, the hydraulic assembly is connected to the controller, and the hydraulic assembly is used to drive the lower clamp to slide on the first guide rail assembly and the second guide rail assembly; when the second guide rail assembly is raised, the second guide rail assembly is flush with the top surface of the first guide rail assembly, and the wheel abuts against the second guide rail assembly; when the second guide rail assembly is lowered, the wheel and the second guide rail assembly are arranged at an interval.

[0005] Compared with the prior art, the present invention using the above technical solution has the following beneficial effects: The present invention is provided with a first guide rail assembly at the front end of the fixed bracket, and a second guide rail assembly is provided on the top of the fixed bracket, and the lower clamp is driven to slide on the first guide rail assembly and the second guide rail assembly by the hydraulic assembly. When the mold needs to be replaced, the lower clamp can be driven to move out from above the fixed bracket by the hydraulic assembly, and the large-volume mold can be directly hoisted or lowered onto the lower clamp, and then the hydraulic assembly is controlled to drive the lower clamp to move into the top of the fixed bracket to carry out the pressing work; the structure of the present invention can quickly replace the mold, and the difficulty of mold changing operation is greatly reduced; the second guide rail assembly on the top of the fixed bracket is set as a lifting structure, and when the mold needs to be changed, the second guide rail assembly is controlled to rise, so that the second guide rail assembly and the first guide rail assembly are spliced ​​to form a slide rail. At this time, the wheels on both sides of the lower clamp abut against the second guide rail assembly, and the wheels drive the lower clamp to move on the first guide rail assembly and the second guide rail assembly. When the product is pressed, the second guide rail assembly is controlled to be lowered. At this time, there is a gap between the wheels and the second guide rail assembly, so that the position of the lower clamp is stable.

[0006] Preferably, a further technical solution of the present invention is: The hydraulic assembly includes a traveling oil cylinder and a synchronous frame. The cylinder body of the traveling oil cylinder is fixedly inserted in the fixed bracket, and the movement direction of the piston rod of the traveling oil cylinder is parallel to the length direction of the first guide rail assembly. The front end of the piston rod of the traveling oil cylinder is connected to one end of the synchronous frame, and the other end of the synchronous frame is connected to the front end of the lower clamp. By setting the synchronous frame, when the piston rod of the traveling oil cylinder is extended and retracted, the lower clamp is driven to move on the first guide rail assembly and the second guide rail assembly.

[0007] The first guide rail assembly includes two first guide rails, and the second guide rail assembly includes two second guide rails. One end of the two first guide rails is fixed to the front end of the fixed bracket, and the front ends of the two second guide rails are respectively fitted with the rear ends of the two first guide rails. Through the above structure, the lower clamp can stably walk on the first guide rail and the first guide rail.

[0008] The fixed brackets on both sides of the boss are respectively provided with lifting cylinders, and the front end of the piston rod of the lifting cylinder extends out of the top surface of the fixed bracket and is fixedly connected to the second guide rail. The second guide rail is driven to rise and fall by the piston rod of the lifting cylinder.

[0009] The front end of the first guide rail is provided with a first proximity switch, and the rear end of the second guide rail is provided with a second proximity switch, and the first proximity switch and the second proximity switch are respectively connected to the controller. The first proximity switch and the second proximity switch are used to detect whether the lower clamp is moved into place, so as to timely control the travel cylinder to stop.

[0010] The left and right ends of the fixed bracket are provided with guide rods, the top of the guide rods is fixed with a fixed frame, the two ends of the upper clamp are movably sleeved on the guide rods between the fixed frame and the lower clamp, the fixed frame is fixed with a main oil cylinder, and the front end of the piston rod of the main oil cylinder is fixed to the upper clamp. When the main oil cylinder drives the upper clamp to move, the moving direction of the upper clamp is limited by the guide rods, so that it can only move vertically, so as to avoid the upper clamp from deflecting or tilting when moving, which affects the pressing effect.

[0011] A third proximity switch is provided at the bottom of the fixed frame, and the third proximity switch is connected to the controller. A detection plate is provided at the top of the upper clamp corresponding to the vertical position of the third proximity switch. When the upper clamp moves upward, the third proximity switch detects the upward movement of the upper clamp. When the third proximity switch detects that the detection plate is approaching, the controller promptly controls the main cylinder to stop, so as to avoid damage to the fixed frame and the upper clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application; Figure 2 It is a structural schematic diagram from another angle of an embodiment of the present application; Figure 3 yes Figure 2 A partial enlarged view of middle A; Figure 4 is a three-dimensional diagram of the upper clamp of the embodiment of the present application when it moves downward; Figure 5 yes Figure 4 A partial enlarged view of B in the middle; Figure 6 is a three-dimensional diagram of the lower clamp of the embodiment of the present application being moved out of the pressing space; Figure 7 It is a side view of the lower clamp of the embodiment of the present application moving out of the pressing space.

[0013] In the figure: 1. main cylinder; 2. fixed frame; 21. third proximity switch; 3. upper clamp; 31. detection plate; 4. guide rod; 5. lower clamp; 51. wheel; 52. second proximity switch; 6. first guide rail; 61. first proximity switch; 7. guide rail frame; 8. second guide rail; 81. travel cylinder; 82. synchronous frame; 9. fixed bracket; 91. boss; 10. lifting cylinder. DETAILED DESCRIPTION

[0014] The present invention is further described below in conjunction with embodiments, the purpose of which is only to better understand the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.

[0015] Reference Figure 1-7The embodiment of the present application discloses a high-pressure forming device, including a fixed bracket 9 and a controller. A lower clamp 5 is placed on the top of the fixed bracket 9. Specifically, a boss 91 protruding upward is fixed in the middle of the top of the fixed bracket 9. The middle position of the lower clamp 5 is overlapped on the boss 91, and the left and right ends of the lower clamp 5 protrude from the boss 91, and the protruding position is provided with a wheel 51; an upper clamp 3 that can move vertically is provided above the lower clamp 5, and a pressing space is provided between the upper clamp 3 and the lower clamp 5, and a pressing mold is placed on the lower clamp 5; the wheel A second guide rail assembly that can be raised and lowered is arranged on the fixed bracket 9 below 51 and on both sides of the boss 91, and a first guide rail assembly is arranged at the front end of the fixed bracket 9; a hydraulic assembly is arranged on the fixed bracket 9, and the hydraulic assembly is connected to the controller, and the hydraulic assembly is used to drive the lower clamp 5 to slide on the first guide rail assembly and the second guide rail assembly; when the second guide rail assembly is raised, the second guide rail assembly is flush with the top surface of the first guide rail assembly, and the wheel 51 is in contact with the second guide rail assembly; when the second guide rail assembly is lowered, the wheel 51 is spaced apart from the second guide rail assembly.

[0016] In this embodiment, the first guide rail assembly includes two first guide rails 6, which are respectively arranged on the fixed bracket 9 on both sides of the boss 91 and below the wheel 51, and the second guide rail assembly includes two second guide rails 8, which are respectively arranged on the fixed bracket 9 on both sides of the boss 91 and below the wheel 51; specifically, two cylinder grooves are respectively provided at the lower part of the left and right sides of the boss 91, and a lifting cylinder 10 is fixed in the cylinder groove. A through hole is provided on the fixed bracket 9 above the cylinder groove. The piston rod of the lifting cylinder 10 extends upward through the through hole, and the front end of the piston rod is fixed to the second guide rail 8 above, and the second guide rail 8 is driven to rise and fall by the piston rod of the lifting cylinder 10; guide rail frames 7 are fixed below the two first guide rails 6, and the rear ends of the two guide rail frames 7 are fixed to the front end of the fixed bracket 9. The second guide rail 8 on the same side is in a straight line with the first guide rail 6 on the horizontal plane and parallel to each other on the vertical plane, and the front ends of the two second guide rails 8 are respectively in contact with the rear ends of the two first guide rails 6. Through the above structure, the lifting cylinder 10 drives the second guide rail 8 to rise and fall on the fixed bracket 9. When the second guide rail 8 is raised, the top surfaces of the first guide rail 6 and the second guide rail 8 are on the same horizontal plane, so that the wheels 51 of the lower clamp 5 can move stably on the first guide rail 6 and the first guide rail 6.

[0017] In this embodiment, the hydraulic assembly includes a travel oil cylinder 81 and a synchronous frame 82. A cylinder hole is provided in the middle of the fixed frame 9. The axial direction of the cylinder hole is parallel to the length direction of the first guide rail 6 and the second guide rail 8. The movement direction of the piston rod of the travel oil cylinder 81 is parallel to the length direction of the first guide rail assembly. The cylinder body of the travel oil cylinder 81 is fixedly inserted in the cylinder hole, and the piston rod of the travel oil cylinder 81 protrudes from the front end of the fixed frame 9. The front end of the piston rod of the travel oil cylinder 81 is connected to the lower end of the synchronous frame 82, and the upper end of the synchronous frame 82 is connected to the front end of the lower clamp 5. The synchronous frame 82 is driven to move by the piston rod of the travel oil cylinder 81, and the synchronous frame 82 synchronously drives the lower clamp 5 to move on the first guide rail assembly and the second guide rail assembly.

[0018] In this embodiment, a first proximity switch 61 is provided on the outer side of the front end of the first guide rail 6, and a second proximity switch 52 is provided on the outer side of the rear end of the second guide rail 8. The first proximity switch 61 and the second proximity switch 52 are connected to the controller respectively; when the first proximity switch 61 detects a position signal, it means that the lower clamp 5 has completely moved out of the pressing space at this time, and the controller controls the piston rod of the travel cylinder 81 to stop extending in time. When the second proximity switch 52 detects a position signal, it means that the lower clamp 5 has completely moved back to the pressing space at this time, and the controller controls the piston rod of the travel cylinder 81 to stop retracting in time. The first proximity switch 61 and the second proximity switch 52 are used to detect whether the lower clamp 5 has moved into place, so as to control the travel cylinder 81 to stop in time to avoid damage to the equipment.

[0019] In this embodiment, two guide rods 4 are respectively provided at the left and right ends of the top of the fixed bracket 9, and guide holes are provided at the left and right ends of the upper clamp 3 corresponding to the positions of the guide rods 4. The upper clamp 3 is movably sleeved on the guide rods 4 through the guide holes. A fixed frame 2 is fixed on the guide rods 4 above the upper clamp 3, and a main oil cylinder 1 is fixed in the middle of the fixed frame 2, and the front end of the piston rod of the main oil cylinder 1 is fixed to the top surface of the upper clamp 3. The upper clamp 3 is driven to move vertically by the main oil cylinder 1, thereby changing the height of the pressing space between the upper clamp 3 and the lower clamp 5, so as to press the product; when the main oil cylinder 1 drives the upper clamp 3 to move, the moving direction of the upper clamp 3 is limited by the guide rod 4, so that it can only move vertically, so as to avoid the upper clamp 3 from deflecting or tilting when moving, which affects the pressing effect.

[0020] In this embodiment, a third proximity switch 21 is fixedly protruded downwardly on one side wall of the bottom of the fixed frame 2, and the third proximity switch 21 is connected to the controller. A detection plate 31 is fixedly protruded upwardly on the top of the upper clamp 3 corresponding to the vertical position of the third proximity switch 21. When the upper clamp 3 moves upward, the detection plate 31 is driven to gradually approach the third proximity switch 21. When the third proximity switch 21 detects the position signal of the detection plate 31, it sends a signal to the controller in time, and the controller controls the main oil cylinder 1 to stop retracting in time to avoid damage to the fixed frame 2 and the upper clamp 3.

[0021] The present invention provides a first guide rail 6 at the front end of the fixed bracket 9, and a second guide rail 8 is provided on the top of the fixed bracket 9. When a mold is placed on the lower clamp 5 and a pressing operation is performed, the piston rod of the lifting cylinder 10 is in a retracted state, and at this time, the bottom surface of the second guide rail 8 is in contact with the top surface of the fixed bracket 9, and there is a certain gap between the track surface of the second guide rail 8 and the wheel 51 of the lower clamp 5. The boss 91 supports the middle position of the lower clamp 5, thereby ensuring the position stability of the lower clamp 5, and controlling the main oil cylinder 1 to drive the upper clamp 3 to move, so as to realize the pressing action; when the mold on the lower clamp 5 needs to be replaced, first control the lifting cylinder 10 to drive the second guide rail 8 to rise, so that the second guide rail 8 contacts the wheel surface of the wheel 51, and control the piston rod of the traveling oil cylinder 81 to extend, so as to drive the lower clamp 5 to move out of the pressing space and move onto the first guide rail 6, and then The large-volume mold can be directly placed on the lower clamp 5 by hoisting or lowering, and the piston rod of the travel cylinder 81 is controlled to retract, driving the lower clamp 5 to move back into the compression space to perform the pressing action again; the structure of the present invention can quickly replace the mold, and the difficulty of mold change operation is greatly reduced; the second guide rail assembly on the top of the fixed bracket 9 is set to a liftable structure, and when the mold needs to be changed, the second guide rail assembly is controlled to rise, so that the second guide rail assembly and the first guide rail assembly are spliced ​​to form a slide rail. At this time, the wheels 51 on both sides of the lower clamp 5 abut against the second guide rail assembly, and the wheels 51 drive the lower clamp 5 to move on the first guide rail assembly and the second guide rail assembly. When pressing the product, the second guide rail assembly is controlled to be lowered. At this time, there is a gap between the wheels 51 and the second guide rail assembly. During pressing, the lower clamp 5 is supported by the boss 91, and the position is more stable.

[0022] The above description is only a preferred feasible embodiment of the present invention, and does not limit the scope of rights of the present invention. All equivalent changes made using the contents of the present specification and its drawings are included in the scope of rights of the present invention.

Claims

1. A high pressure forming device, comprising a fixed support and a controller, wherein a lower clamp is arranged on the fixed support, an upper clamp which can be moved vertically is arranged above the lower clamp, and a pressing mold is placed on the lower clamp, characterized in that: A boss is fixed on the top of the fixed bracket, the middle position of the lower clamp is overlapped on the boss, the two ends of the lower clamp protrude from both sides of the boss, and wheels are arranged at the protruding positions, a liftable second guide rail assembly is arranged on the fixed bracket below the wheel, and a first guide rail assembly is arranged at the front end of the fixed bracket; a hydraulic assembly is arranged on the fixed bracket, the hydraulic assembly is connected to the controller, and the hydraulic assembly is used to drive the lower clamp to slide on the first guide rail assembly and the second guide rail assembly; when the second guide rail assembly is raised, the second guide rail assembly is flush with the top surface of the first guide rail assembly, and the wheel is in contact with the second guide rail assembly; when the second guide rail assembly is lowered, the wheel and the second guide rail assembly are arranged at an interval.

2. The high pressure forming equipment according to claim 1, characterized in that: The hydraulic assembly includes a traveling oil cylinder and a synchronous frame. The cylinder body of the traveling oil cylinder is fixedly inserted in a fixed bracket, and the movement direction of the piston rod of the traveling oil cylinder is parallel to the length direction of the first guide rail assembly. The front end of the piston rod of the traveling oil cylinder is connected to one end of the synchronous frame, and the other end of the synchronous frame is connected to the front end of the lower clamp.

3. The high pressure forming equipment according to claim 1, characterized in that: The first guide rail assembly includes two first guide rails, and the second guide rail assembly includes two second guide rails. One end of the two first guide rails is fixed to the front end of the fixed bracket, and the front ends of the two second guide rails are respectively fitted with the rear ends of the two first guide rails.

4. The high pressure forming equipment according to claim 3, characterized in that: Lifting cylinders are respectively arranged in the fixed brackets on both sides of the boss, and the front ends of the piston rods of the lifting cylinders extend out of the top surfaces of the fixed brackets and are fixedly connected to the second guide rails.

5. The high pressure forming equipment according to claim 3, characterized in that: A first proximity switch is disposed at the front end of the first guide rail, and a second proximity switch is disposed at the rear end of the second guide rail. The first proximity switch and the second proximity switch are respectively connected to the controller.

6. The high pressure forming equipment according to claim 1, characterized in that: Guide rods are provided at both left and right ends of the fixed bracket, a fixed frame is fixed to the top of the guide rods, both ends of the upper clamp are movably sleeved on the guide rods between the fixed frame and the lower clamp, a main oil cylinder is fixed on the fixed frame, and the front end of the piston rod of the main oil cylinder is fixed to the upper clamp.

7. The high pressure forming equipment according to claim 6, characterized in that: A third proximity switch is arranged at the bottom of the fixed frame, the third proximity switch is connected to the controller, and a detection plate is arranged at the top of the upper clamp corresponding to the vertical position of the third proximity switch.

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