Anti-loose fixing device of four-column hydraulic press

Abstract

The utility model discloses an anti-loose fixing device of a four-column hydraulic machine, and relates to the technical field of hydraulic machines. The anti-loose fixing device for the four-column hydraulic press comprises a bottom plate, a mounting frame, a jacket plate and a self-adaptive driving assembly, hydraulic equipment is fixedly mounted at the top of the bottom plate, the mounting frame is fixedly mounted at the bottom of the bottom plate, a support is fixedly mounted at the top of the mounting frame, a hydraulic oil tank is fixedly mounted at the top of the support, and a piston plate is arranged in the hydraulic oil tank; the clamping sleeve plates are arranged on the bottom plate, the number of the clamping sleeve plates is four, the clamping sleeve plates are annularly distributed at equal intervals, and the self-adaptive driving assembly is arranged on the bottom plate and the clamping sleeve plates. According to the anti-loose fixing device for the four-column hydraulic press, the four sets of jacket plates can be synchronously driven to move and approach the center point of the bottom plate, then a lower die fixed to the bottom plate can be automatically pressed and positioned, the situation that the lower die deviates leftwards and rightwards and forwards and backwards due to long-time punching operation is prevented, and the device has a good anti-loose effect.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic presses, in particular to an anti-loosening fixing device for a four-column hydraulic press. Background Art

[0002] An anti-loosening fixing device for a four-column hydraulic press in Chinese document CN211567055U includes an installation table. A workbench is fixedly connected to the top of the installation table. Four columns are fixedly connected to the top of the workbench. A top seat is fixedly connected to the top of the four columns. A hydraulic push rod is fixedly installed inside the top seat. A hydraulic table is fixedly connected to the output shaft of the hydraulic push rod. Two adjusting plates are fixedly connected to the top of the workbench. A limiting sleeve is fixedly connected to the inside of each of the two adjusting plates. A threaded adjusting rod is threadedly connected to the inside of the limiting sleeve. A limiting block is fixedly connected to the outside of the threaded adjusting rod. This anti-loosening fixing device for a four-column hydraulic press has the advantage of being convenient for fixing and preventing loosening, thus effectively solving the problem that components of the four-column hydraulic press are displaced or even fall off due to large hydraulic actions during operation.

[0003] The above-mentioned anti-loosening fixing device for a four-column hydraulic press can only press and position both sides of the lower die, resulting in the device only being able to prevent the lower die from shifting to both sides and unable to prevent the lower die from shifting forward and backward. Therefore, improvement is needed. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an anti-loosening fixing device for a four-column hydraulic press, which can solve the problem that only both sides of the lower die can be pressed and positioned, resulting in the device only being able to prevent the lower die from shifting to both sides and unable to prevent the lower die from shifting forward and backward.

[0005] To achieve the above purpose, the utility model provides the following technical solution: An anti-loosening fixing device for a four-column hydraulic press includes a bottom plate, an installation frame, a clamping plate and an adaptive driving component. A hydraulic device is fixedly installed on the top of the bottom plate. The installation frame is fixedly installed at the bottom of the bottom plate. A support is fixedly installed on the top of the installation frame. A hydraulic oil tank is fixedly installed on the top of the support. A piston plate is arranged inside the hydraulic oil tank. The clamping plate is arranged on the bottom plate. The number of the clamping plates is four groups and they are evenly distributed in a ring. The adaptive driving component is arranged on the bottom plate and the clamping plate, and the adaptive driving component is used to drive the four groups of clamping plates to approach each other.

[0006] Preferably, an electric push rod is fixedly installed at the bottom of the support. Circular openings are formed on both the support and the hydraulic oil tank. The free end of the electric push rod passes through the circular opening and is fixedly connected to the piston plate.

[0007] Preferably, an annular opening communicating with the circular opening is formed on the hydraulic oil tank. A rubber ring is fixedly installed on the inner wall of the annular opening. The inner wall of the rubber ring is in contact with the outer wall of the free end of the electric push rod.

[0008] Preferably, a liquid pipe is fixedly installed on the left side of the hydraulic oil tank, and a knob cover is sleeved on the liquid pipe in a threaded manner, which is convenient for replacing the hydraulic oil in the hydraulic oil tank.

[0009] Preferably, the adaptive driving component includes a hollow shell, a spring, a sliding block, a linkage column, a linkage block and a linkage bar. There are four groups of hollow shells, which are evenly distributed in a ring shape. The hollow shells are fixedly installed at the bottom of the bottom plate. The sliding block is slidably installed inside the hollow shell. The spring is fixedly installed between the sliding block and the inside of the hollow shell. A through hole is opened on the hollow shell. One end of the linkage column passes through the through hole and is fixedly connected to the sliding block. The other end of the linkage column is fixedly connected to the linkage block. The linkage bar is fixedly installed on the top of the linkage block. Four groups of strip-shaped openings are opened on the bottom plate and are evenly distributed in a ring shape. The linkage bar is located in the strip-shaped openings. The clamping plate sleeve is sleeved on the linkage bar. One end of the bent pipe extends into the hollow shell.

[0010] Preferably, an annular groove communicated with the through hole is opened on the hollow shell, and a sealing ring is fixedly installed on the inner wall of the annular groove. The sealing ring is in contact with the outer wall of the linkage column to prevent leakage.

[0011] Preferably, screws are arranged on the outer wall of the clamping plate sleeve. One end of the screw passes through the clamping plate sleeve and is threadedly connected to the linkage bar, so that the clamping plate sleeve is convenient to disassemble and assemble.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] For the anti-loosening fixing device of the four-column hydraulic press, through the coordinated use of the hydraulic oil tank, the liquid infusion pipe, the bent pipe, the hollow shell, the spring, the sliding block, the linkage column, the linkage block, the linkage bar, the clamping plate sleeve and the screw, it can synchronously drive the four groups of clamping plate sleeves to move closer to the center point of the bottom plate, and then can automatically press and position the lower die fixed on the bottom plate, preventing the lower die from shifting left and right and front and back during long-term stamping operations. Therefore, the device has a good anti-loosening effect. At the same time, the clamping plate sleeve is convenient to replace, and the structure can automatically adapt to the size of the lower die, expanding the application range of the device and improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The following further illustrates the present utility model with reference to the drawings and embodiments:

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is an enlarged view of part A of the present utility model;

[0017] Figure 3 is an enlarged view of part B of the present utility model;

[0018] Figure 4 This is the front view of the present utility model.

[0019] Reference numerals: 1, base plate; 2, mounting frame; 3, support; 4, hydraulic oil tank; 5, infusion tube; 6, elbow pipe; 7, adaptive drive assembly; 71, hollow shell; 72, spring; 73, sliding block; 74, linkage column; 75, linkage block; 76, linkage bar; 8, jacket plate; 9, sealing ring; 10, screw; 11, piston plate; 12, electric push rod; 13, rubber ring; 14, hydraulic equipment. Detailed implementation manners

[0020] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it should not be construed as a limitation on the protection scope of the present utility model.

[0021] Please refer to Figures 1-4 , the present utility model provides a technical solution: a four-column hydraulic press anti-loosening fixing device, including a base plate 1, a mounting frame 2, a jacket plate 8 and an adaptive drive assembly 7. A hydraulic equipment 14 is fixedly installed on the top of the base plate 1. The mounting frame 2 is fixedly installed at the bottom of the base plate 1. A support 3 is fixedly installed on the top of the mounting frame 2. A hydraulic oil tank 4 is fixedly installed on the top of the support 3. A piston plate 11 is arranged inside the hydraulic oil tank 4. The jacket plate 8 is arranged on the base plate 1. The number of the jacket plates 8 is four groups and they are evenly distributed in a ring shape at equal intervals. The adaptive drive assembly 7 is arranged on the base plate 1 and the jacket plate 8, and the adaptive drive assembly 7 is used to drive the four groups of jacket plates 8 to approach each other.

[0022] An electric push rod 12 is fixedly installed at the bottom of the support 3. Round openings are formed on both the support 3 and the hydraulic oil tank 4. The free end of the electric push rod 12 passes through the round opening and is fixedly connected to the piston plate 11. An annular opening communicating with the round opening is formed on the hydraulic oil tank 4. A rubber ring 13 is fixedly installed on the inner wall of the annular opening. The inner wall of the rubber ring 13 is in contact with the outer wall of the free end of the electric push rod 12. A liquid pipe is fixedly installed on the left side of the hydraulic oil tank 4. A knob cover is threadedly sleeved on the liquid pipe.

[0023] The adaptive driving component 7 includes a hollow shell 71, a spring 72, a sliding block 73, a linkage column 74, a linkage block 75 and a linkage bar 76. There are four groups of hollow shells 71 which are evenly distributed in a ring shape. The hollow shells 71 are fixedly installed at the bottom of the bottom plate 1. The sliding block 73 is slidably installed inside the hollow shell 71. The spring 72 is fixedly installed between the sliding block 73 and the inside of the hollow shell 71. A through hole is opened on the hollow shell 71. One end of the linkage column 74 passes through the through hole and is fixedly connected to the sliding block 73. The other end of the linkage column 74 is fixedly connected to the linkage block 75. The linkage bar 76 is fixedly installed on the top of the linkage block 75. Four groups of strip-shaped openings which are evenly distributed in a ring shape are opened on the bottom plate 1. The linkage bar 76 is located in the strip-shaped opening. The jacket plate 8 is sleeved on the linkage bar 76. One end of the elbow pipe 6 extends into the inside of the hollow shell 71. An annular groove communicated with the through hole is opened on the hollow shell 71. A sealing ring 9 is fixedly installed on the inner wall of the annular groove. The sealing ring 9 is in contact with the outer wall of the linkage column 74. Screws 10 are arranged on the outer wall of the jacket plate 8. One end of the screw 10 passes through the jacket plate 8 and is threadedly connected to the linkage bar 76. The lower die is fixed on the bottom plate 1. Then, the electric push rod 12 is controlled to pull the piston plate 11 to move upward. Subsequently, the hydraulic oil in the hydraulic oil tank 4 is injected into the four groups of hollow shells 71 through the infusion pipe 5 and the elbow pipe 6 respectively. Immediately, the movement of the sliding block 73 is squeezed. Then, the movement of the jacket plate 8 is driven through the linkage column 74, the linkage block 75 and the linkage bar 76. The jacket plate 8 automatically clamps the lower die fixed on the bottom plate 1, so as to prevent the lower die from loosening. It can synchronously drive the four groups of jacket plates 8 to move close to the center point of the bottom plate 1, and then can automatically press and position the lower die fixed on the bottom plate 1, preventing the left - right and front - back offset of the lower die during long - term stamping operations. It makes the device have a good anti - loosening effect. At the same time, the jacket plate 8 is convenient to replace, and the structure can automatically adapt to the size of the lower die, strengthening the applicable range of the device and improving the practicability of the device.

[0024] Working principle: Fix the lower die on the bottom plate 1. Then, control the electric push rod 12 to pull the piston plate 11 to move upward. Subsequently, the hydraulic oil in the hydraulic oil tank 4 is injected into the four groups of hollow shells 71 through the infusion pipe 5 and the elbow pipe 6 respectively. Immediately, the movement of the sliding block 73 is squeezed. Then, the movement of the jacket plate 8 is driven through the linkage column 74, the linkage block 75 and the linkage bar 76. The jacket plate 8 automatically clamps the lower die fixed on the bottom plate 1, so as to prevent the lower die from loosening.

[0025] The above - mentioned embodiments of the present invention have been described in detail with reference to the accompanying drawings. However, the present invention is not limited to the above - mentioned embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the technical field, various changes can be made without departing from the purpose of the present invention.

Claims

1. A loosening prevention and fixing device for a four-column hydraulic press, characterized in that, Including: A bottom plate (1), on the top of which a hydraulic device (14) is fixedly installed; A mounting frame (2) fixedly installed at the bottom of the bottom plate (1). A support (3) is fixedly installed on the top of the mounting frame (2). A hydraulic oil tank (4) is fixedly installed on the top of the support (3). A piston plate (11) is arranged inside the hydraulic oil tank (4); Jacket plates (8) arranged on the bottom plate (1), and the number of the jacket plates (8) is four groups and they are evenly distributed in a ring shape; An adaptive driving assembly (7) arranged on the bottom plate (1) and the jacket plates (8), and the adaptive driving assembly (7) is used to drive the four groups of jacket plates (8) to approach each other; The hydraulic oil in the hydraulic oil tank (4) is injected into the four groups of hollow shells (71) through a liquid delivery pipe (5) and a bent pipe (6) respectively.

2. The anti-loosening fixing device for a four-column hydraulic press according to claim 1, characterized in that: An electric push rod (12) is fixedly installed at the bottom of the support (3). Round openings are provided on both the support (3) and the hydraulic oil tank (4). The free end of the electric push rod (12) passes through the round opening and is fixedly connected to the piston plate (11).

3. The anti-loosening fixing device for a four-column hydraulic press according to claim 2, characterized in that: An annular opening communicating with the round opening is provided on the hydraulic oil tank (4). A rubber ring (13) is fixedly installed on the inner wall of the annular opening, and the inner wall of the rubber ring (13) is in contact with the outer wall of the free end of the electric push rod (12).

4. The anti-loosening fixing device for a four-column hydraulic press according to claim 3, characterized in that: A liquid pipe is fixedly installed on the left side of the hydraulic oil tank (4), and a knob cover is threadedly sleeved on the liquid pipe.

5. A four-column hydraulic press anti-loosening fixing device according to claim 1, characterized in that: The adaptive driving assembly (7) includes hollow shells (71), springs (72), sliding blocks (73), linkage columns (74), linkage blocks (75) and linkage bars (76). There are four groups of hollow shells (71) and they are evenly distributed in a ring shape. The hollow shells (71) are fixedly installed at the bottom of the bottom plate (1). The sliding blocks (73) are slidably installed inside the hollow shells (71). The springs (72) are fixedly installed between the sliding blocks (73) and the inner parts of the hollow shells (71). Through holes are provided on the hollow shells (71). One end of the linkage column (74) passes through the through hole and is fixedly connected to the sliding block (73). The other end of the linkage column (74) is fixedly connected to the linkage block (75). The linkage bars (76) are fixedly installed on the tops of the linkage blocks (75). Four groups of strip-shaped openings evenly distributed in a ring shape are provided on the bottom plate (1). The linkage bars (76) are located in the strip-shaped openings. The jacket plates (8) are sleeved on the linkage bars (76). One end of the bent pipe (6) extends into the interior of the hollow shell (71).

6. The anti-loosening fixing device for a four-column hydraulic press according to claim 5, characterized in that: An annular groove communicating with the through hole is provided on the hollow shell (71). A sealing ring (9) is fixedly installed on the inner wall of the annular groove, and the sealing ring (9) is in contact with the outer wall of the linkage column (74).

7. The anti-loosening fixing device for a four-column hydraulic press according to claim 5, characterized in that: Screws (10) are arranged on the outer walls of the jacket plates (8). One end of each screw (10) passes through the jacket plate (8) and is threadedly connected to the linkage bar (76).

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