Moving and pressing device of small hydraulic machine workbench

Abstract

The utility model discloses a moving and pressing device of a small hydraulic machine workbench, and relates to moving and pressing of the small hydraulic machine workbench. According to the technical scheme, the device comprises a lower cross beam, two parallel linear guide rails which are spaced by a certain distance extend out of one side of the lower cross beam, a movable working table and a push-pull cylinder for pushing the movable working table are arranged above the table top of the lower cross beam, and sliding blocks sliding in the direction of the guide rails are arranged at the four corners of the lower portion of the movable working table. The device is characterized in that a spring is arranged on the sliding block, and pressing devices for pressing the movable workbench are arranged on the two sides of the outermost edge of the lower cross beam respectively.

Description

Technical Field

[0001] The utility model relates to the technical field of a small hydraulic press movable workbench, in particular to the movement and pressing of a small hydraulic press workbench. Background Art

[0002] The existing small hydraulic press with a movable table uses a cylinder as a power source and relies on wheels to move on the guide rail. It has a complex structure, is difficult to manufacture, has high material costs, and is difficult to maintain and replace parts in the later stage.

[0003] The movable platform can be moved out more smoothly, the parts required in the process of moving the movable platform are greatly reduced, and the working table can be more firmly fixed on the lower beam, so as to achieve the beneficial effects of simple structure, low cost and convenient operation. Utility Model Content

[0004] The utility model aims to solve the problems existing in the prior art and proposes a moving and pressing device for a small hydraulic press workbench.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a moving and clamping device for a small hydraulic press workbench, comprising a lower crossbeam, two linear guide rails extending from one side of the lower crossbeam at a certain distance from each other and parallel, a mobile workbench is arranged above the table top of the lower crossbeam, a push-pull cylinder for pushing the mobile workbench, and sliding blocks sliding along the direction of the linear guide rails are arranged at the four corners under the mobile workbench. It is characterized in that springs are respectively arranged on the sliding blocks, and clamping devices for clamping the mobile workbench are respectively arranged on both sides of the outermost edge of the upper table top of the lower crossbeam.

[0006] Furthermore, the clamping device includes an oil cylinder, a clamping block, and a clamping seat. The clamping block and the clamping seat are hingedly connected by a pin shaft. The front end of the clamping block is a round head, and the rear end of the clamping block is movably abutted against the piston end of the oil cylinder.

[0007] Furthermore, the spring arranged on the sliding block is a disc spring.

[0008] Furthermore, the four corners of the movable workbench are fixedly connected to the sliding blocks on the guide rails, and the disc spring is arranged between the sliding blocks and the movable workbench.

[0009] Furthermore, the sliding block, the disc spring and the movable workbench are connected in sequence through screw rods.

[0010] Furthermore, a push-pull cylinder for pushing the movable workbench is arranged in the groove in the middle of the lower cross beam, and a connecting plate is arranged at the front end of the push-pull cylinder for connecting with the movable workbench.

[0011] Furthermore, spaces for the guide rails to pass through are symmetrically arranged on the lower cross beam and are distributed on two adjacent sides of the push-pull cylinder.

[0012] Furthermore, an I-shaped guide rail support frame is correspondingly arranged under the guide rail, and a guide rail support seat is arranged at the end of the guide rail support frame away from the lower cross beam, and the guide rail support seat is fixedly connected to the guide rail support frame.

[0013] Compared with the existing technology, the utility model has the following advantages:

[0014] The utility model proposes a safety lock device for protecting the movable crossbeam of a hydraulic press, which can achieve the following beneficial effects: the movable workbench can be moved in and out conveniently and quickly, and the arrangement of the clamping device and the disc spring can make the workbench more tightly fixed on the lower crossbeam. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a side structural diagram of the utility model;

[0017] Figure 3 This is an enlarged structural diagram of part A in the utility model;

[0018] Figure 4 This is an enlarged structural diagram of part B in the utility model;

[0019] Figure 5 It is a side view of the pressing member in the utility model;

[0020] In the figure: 1-working table; 2-disc spring; 3-clamping device; 31-clamping block; 32-pin shaft; 33-clamping seat; 34-oil cylinder; 4-sliding block; 5-guide rail; 6-support frame; 7-support seat; 8-connecting plate; 9-lower beam; 10-push-pull cylinder. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1, as Figure 1-Figure 2As shown, a moving and clamping device for a small hydraulic press workbench includes a lower crossbeam 9, two linear guide rails 5 extending from one side of the lower crossbeam 9 at a certain distance from each other and in parallel, a movable workbench 1 is arranged above the table surface of the lower crossbeam 9, a push-pull cylinder 10 pushes the movable workbench 1, and sliding blocks 4 sliding along the direction of the linear guide rails 5 are respectively arranged at the four corners of the lower side of the movable workbench 1, which are characterized in that: springs 2 are respectively arranged on the sliding blocks 4, and clamping devices 3 for clamping the movable workbench 1 are respectively arranged on both sides of the outermost edge of the upper table surface of the lower crossbeam 9.

[0023] By setting the push-pull cylinder 10 and the sliding block 4, the workbench can be pushed to move along the guide rail, which is convenient for moving the workbench in and out. The setting of the clamping device and the spring allows the workbench to act more closely on the lower beam to ensure the accuracy of the products produced.

[0024] In this embodiment, if Figure 4-Figure 5 As shown, the clamping device 3 includes an oil cylinder 34, a clamping block 31, and a clamping seat 33. The front end of the clamping block 31 is hinged with the top of the clamping seat 33 through a pin shaft 32. The front end head of the clamping block 31 is a round head, and the rear end of the clamping block 31 is movably abutted with the piston end of the oil cylinder 34. When the workbench 1 needs to be clamped, the movable end of the oil cylinder 34 extends out and abuts against the rear end of the clamping block 31. Since the front end of the clamping block 31 is hinged with the top of the clamping seat 33 through the pin shaft 32, the clamping block 31 will tilt forward, and the round head of the front end of the clamping block 31 will be tightly pressed on the workbench 1, thereby ensuring the tightness between the workbench and the lower crossbeam. A circular groove corresponding to the piston end can be provided at the rear end of the clamping block where the movable end of the oil cylinder 34 abuts, so that the piston end of the oil cylinder 34 can better abut against the rear end of the clamping block 31.

[0025] In this embodiment, if Figure 2 and Figure 3 As shown, the spring 2 arranged on the sliding block 4 is a disc spring.

[0026] Disc springs are an existing technology. Disc springs are special springs that are conical in the axial direction and bear loads. After being deformed under load, they store a certain amount of potential energy. When the bolt becomes loose, the disc spring releases part of the potential energy to maintain the pressure requirements of the connector. The stress distribution of disc springs decreases evenly from the inside to the outside, and can achieve the effect of low stroke and high compensation force. It has high stiffness and strong buffering and vibration absorption capabilities. It can withstand large loads with small deformations and is suitable for occasions with small axial space requirements. It has variable stiffness characteristics and has a wide range of nonlinear characteristics. Using the same disc spring in different combinations can change the spring characteristics over a wide range. It can be combined in a matching or overlapping manner, or it can be combined in different thicknesses and different numbers of sheets.

[0027] In this embodiment, the four corners of the mobile workbench 1 are threadedly connected to the screws on the sliding block 4 on the guide rail 5, and the disc spring is arranged between the sliding block 4 and the mobile workbench 1. By arranging the disc spring, the workbench and the lower beam can be in a non-contact state, which is convenient for moving the workbench.

[0028] In this embodiment, the sliding block 4, the disc spring, and the movable workbench 1 are connected in sequence through screws.

[0029] In this embodiment, a push-pull cylinder 10 for pushing the movable workbench 1 is arranged in the groove in the middle of the lower cross beam 9 , and a connecting plate 8 is arranged at the telescopic end of the push-pull cylinder 10 to connect with the movable workbench 1 .

[0030] In this embodiment, spaces for the guide rails (5) to pass through are symmetrically arranged on the lower cross beam and are distributed on two adjacent sides of the push-pull cylinder (10).

[0031] In this embodiment, an I-shaped guide rail support frame 6 is correspondingly arranged under the guide rail 5, and a guide rail support seat 7 is arranged at the end of the guide rail support frame 6 away from the lower cross beam 9, and the guide rail support seat 7 is fixedly connected to the guide rail support frame 6.

[0032] Through the above technical solution, the workbench can be easily moved in and out, the clamping device can better clamp and fix the workbench and provide greater pressure. The setting of the disc spring also allows the pressure of the main machine movable beam to be transmitted to the lower beam, making the hydraulic process more convenient and reliable.

[0033] The working principle of the utility model is as follows: when the mold needs to be replaced or other operations are performed on the workbench 1, due to the disc spring 2 arranged under the workbench, the workbench 1 always maintains a certain distance from the lower crossbeam 9. At this time, the push-pull cylinder 10 is started, and the movable end of the push-pull cylinder 10 drives the connecting plate 8 to move the workbench 1 out along the guide rail 5. After the mold replacement or other operations are completed, the push-pull cylinder 10 returns, and after the workbench 1 moves to the appropriate position of the lower crossbeam 9, the hydraulic press can be started to start hydraulic work.

[0034] When the movable crossbeam moves downward to the workbench 1, the disc spring will shrink downward due to the pressure, so that the workbench contacts the lower crossbeam. At this time, the clamping device also starts to work, and the movable end of the oil cylinder 34 extends out to abut against the rear end of the clamping block 31. The round head of the front end of the clamping block 31 will be tightly pressed against the workbench 1. At this time, the pressure on the disc spring is further strengthened, and the pressure from the hydraulic press is all applied to the lower crossbeam. When the hydraulic pressing is completed, the movable crossbeam leaves. Due to the action of the disc spring and the clamping device, the lower plane of the workbench 1 and the upper plane of the lower crossbeam are still in close contact. At this time, demolding can be carried out, thereby ensuring the stability requirements of the mold.

[0035] When the work is completed, the elastic force of the disc spring is released and the movable end of the clamping device contracts, and the workbench keeps a certain distance from the lower beam and moves out of the hydraulic press, so that the operation can be cyclic.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A moving and clamping device for a small hydraulic press workbench, comprising a lower crossbeam (9), two linear guide rails (5) extending from one side of the lower crossbeam (9) and spaced a certain distance apart and parallel to each other, a moving workbench (1) is arranged above the table surface of the lower crossbeam (9), a push-pull cylinder (10) for pushing the moving workbench (1), and sliding blocks (4) sliding along the direction of the linear guide rails (5) are respectively arranged at the four lower corners of the moving workbench (1), characterized in that: Springs (2) are respectively arranged on the sliding blocks (4), and clamping devices (3) for clamping the movable workbench (1) are respectively arranged on both sides of the outer edge of the upper table surface of the lower cross beam (9).

2. The moving and pressing device for a small hydraulic press workbench according to claim 1 is characterized in that: The clamping device (3) comprises an oil cylinder (34), a clamping block (31), and a clamping seat (33). The front end of the clamping block (31) and the top end of the clamping seat (33) are hingedly connected via a pin shaft (32). The front end head of the clamping block (31) is a round head. The rear end of the clamping block (31) is movably abutted against the movable end of the oil cylinder (34).

3. The moving and pressing device for a small hydraulic press workbench according to claim 1 is characterized in that: The spring (2) arranged on the sliding block (4) is a disc spring.

4. The moving and pressing device for a small hydraulic press workbench according to claim 3 is characterized in that: The sliding block (4) is provided with a screw rod extending upward, and the screw rod is threadedly connected to the four corners of the movable workbench (1) respectively, and the disc spring is arranged between the sliding block (4) and the movable workbench (1).

5. The moving and pressing device for a small hydraulic press workbench according to claim 4 is characterized in that: The sliding block (4), disc spring, and movable workbench (1) are connected in sequence via screw rods.

6. The moving and pressing device for a small hydraulic press workbench according to claim 1 is characterized in that: A groove is provided in the middle of the lower cross beam (9), and a push-pull cylinder (10) for pushing the movable workbench (1) is provided in the groove. A connecting plate (8) is provided at the telescopic end of the push-pull cylinder (10) for connecting to the movable workbench (1).

7. The moving and pressing device for a small hydraulic press workbench according to claim 6 is characterized in that: Spaces for the guide rails (5) to pass through are symmetrically arranged on the lower cross beam and are distributed on two adjacent sides of the push-pull cylinder (10).

8. The moving and pressing device for a small hydraulic press workbench according to claim 6 is characterized in that: An I-shaped guide rail support frame (6) is correspondingly arranged under the guide rail (5), and a guide rail support seat (7) is arranged at the end of the guide rail support frame (6) away from the lower cross beam (9), and the guide rail support seat (7) is fixedly connected to the guide rail support frame (6).

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