Horizontal type prestressing machine for machining light-weight spring of excavator

Abstract

The utility model provides a horizontal type prestressing machine for processing excavator light weight springs, which belongs to the technical field of spring manufacture and comprises a base and a screw rod, sliding grooves are symmetrically arranged at the front end and the rear end of the upper surface of the base, a first protective cover is slidably connected in the sliding grooves, a square groove is arranged at the center of the upper surface of the base, and a second protective cover is arranged in the square groove. The two ends of the upper surface of the square groove are fixedly connected with bearings, the two ends of the lead screw are fixedly connected into the two bearings respectively, the side face of the base is fixedly connected with a servo motor, the output end of the servo motor is fixedly connected to one end of the lead screw, and the lead screw is in threaded connection with a movable plate. By arranging the clamping device, one end of the spring is axially fixed to prevent the spring from slipping or deforming in the strong pressing process, and by arranging the arc-shaped protection plate, casualties caused by spring breakage due to excessive deformation of the spring are prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of spring manufacturing, and particularly relates to a horizontal strong press for processing lightweight springs of excavators. Background Art

[0002] A spring is a mechanical part that utilizes elasticity. A part made of elastic material deforms under an external force and returns to its original shape after the external force is removed. For a compression spring, the stress of the spring is pressed to exceed the yield point during the strong pressing (strong pulling, strong twisting) process, so that a negative residual stress is generated on the surface and a positive residual stress is generated in the core.

[0003] During the working process, most horizontal strong presses do not use clamps for clamping, which will cause problems such as slipping or deformation at one end of the spring during the strong pressing process. Moreover, if the deformation is large, it will also cause the spring to break, and the broken spring may cause casualties to personnel. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problems raised in the above background art, and to propose a horizontal strong press for processing lightweight springs of excavators.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A horizontal strong press for processing lightweight springs of excavators, including a base and a lead screw. Symmetrical sliding grooves are formed at the front and rear ends of the upper surface of the base. A first protective cover is slidably connected in the sliding grooves. A square groove is formed at the center of the upper surface of the base. Bearings are fixedly connected to both ends of the upper surface of the square groove. The two ends of the lead screw are respectively fixedly connected in the two bearings. A servo motor is fixedly connected to the side of the base. The output end of the servo motor is fixedly connected to one end of the lead screw. A moving plate is threadedly connected to the lead screw. Symmetrical hydraulic cylinders are fixedly connected to the side of the moving plate. The output ends of the two hydraulic cylinders penetrate and are slidably connected to the side of the moving plate. A fixed plate is fixedly connected to the upper surface of the base. A four-jaw chuck is fixedly connected through the side of the fixed plate.

[0007] Preferably, the fixed plate and the moving plate are horizontally arranged, and the lead screw and the fixed plate are vertically arranged.

[0008] Preferably, a limit plate is fixedly connected to the output end of the hydraulic cylinder. A limit rod is fixedly connected to the side of the limit plate. A spring is slidably connected to the limit rod.

[0009] Preferably, arc-shaped protective plates are fixedly connected to the upper surfaces of the jaws of the four-jaw chuck. Rubber gaskets are fixedly connected to the inner side surfaces of the arc-shaped protective plates near one end of the four-jaw chuck.

[0010] Preferably, the limiting rod and the four-jaw chuck are concentrically arranged.

[0011] Preferably, a second shield is slidably connected to the inner wall of the first shield. A handle is fixedly connected to the front side of the second shield, and the bottom of the second shield is slidably connected to the chute.

[0012] Compared with the prior art, the present utility model has the following advantages:

[0013] By providing a clamping device, one end of the spring is axially fixed to prevent the spring from slipping or deforming during the strong pressing process. By providing an arc-shaped guard plate, it is possible to prevent the spring from breaking due to excessive deformation of the spring, thus avoiding casualties. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 FIG. 1 is a schematic structural diagram of a horizontal strong press for processing lightweight springs of an excavator according to the present utility model;

[0015] Figure 2 FIG. 2 is a schematic internal structure diagram of a horizontal strong press for processing lightweight springs of an excavator according to the present utility model;

[0016] Figure 3 FIG. 3 is a schematic structural diagram of a clamping device of a horizontal strong press for processing lightweight springs of an excavator according to the present utility model;

[0017] Figure 4 FIG. 4 is a schematic top view structure diagram of a horizontal strong press for processing lightweight springs of an excavator according to the present utility model.

[0018] In the figure: 1 base, 2 chute, 3 first shield, 4 second shield, 5 handle, 6 square groove, 7 bearing, 8 screw rod, 9 servo motor, 10 moving plate, 11 hydraulic cylinder, 12 limiting plate, 13 limiting rod, 14 spring, 15 fixing plate, 16 four-jaw chuck, 17 arc-shaped guard plate, 18 rubber gasket. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solutions in the present utility model will be further described below with reference to the accompanying drawings and embodiments.

[0020] Refer to Figures 1-4, a horizontal press for processing lightweight springs of excavators, comprising a base 1 and a lead screw 8. Symmetrically arranged chutes 2 are provided at the front and rear ends of the upper surface of the base 1. A first shield 3 is slidably connected in the chute 2. A second shield 4 is slidably connected to the inner wall of the first shield 3. A handle 5 is fixedly connected to the front side of the second shield 4. The bottom of the second shield 4 is slidably connected in the chute 2. The first shield 3 and the second shield 4 can provide double protection. A fixed plate 15 is fixedly connected to the upper surface of the base 1. The fixed plate 15 and the moving plate 10 are horizontally arranged. The lead screw 7 and the fixed plate 15 are vertically arranged. A four-jaw chuck 16 is fixedly connected through the side of the fixed plate 15. Arc-shaped protective plates 17 are fixedly connected to the upper surfaces of the jaws of the four-jaw chuck 16. By providing the arc-shaped protective plates, it is possible to prevent excessive deformation of the spring, resulting in spring fracture and thus causing casualties. A rubber gasket 18 is fixedly connected to the inner side of the arc-shaped protective plate 17 near one end of the four-jaw chuck 16. By controlling the movement of the jaws on the four-jaw chuck 16, the clamping of the spring 14 is achieved. One end of the spring is fixed through the rubber gasket 18. By providing the clamping device, one end of the spring is axially fixed to prevent the spring from slipping or deforming during the pressing process.

[0021] A square groove 6 is provided at the center of the upper surface of the base 1. Bearings 7 are fixedly connected to both ends of the upper surface of the square groove 6. The two ends of the lead screw 8 are respectively fixedly connected in the two bearings 7. A servo motor 9 is fixedly connected to the side of the base 1. The output end of the servo motor 9 is fixedly connected to one end of the lead screw 8. A moving plate 10 is threadedly connected to the lead screw 8. Symmetrically arranged hydraulic cylinders 11 are fixedly connected to the side of the moving plate 10. The output ends of the two hydraulic cylinders 11 penetrate and are slidably connected to the side of the moving plate 10. The output end of the hydraulic cylinder 11 is fixedly connected to a limit plate 12. A limit rod 13 is fixedly connected to the side of the limit plate 12. The limit rod 13 and the four-jaw chuck 16 are concentrically arranged. A spring 14 is slidably connected to the limit rod 13. When the servo motor 9 is started, it will drive the moving plate 10 to move on the lead screw 8.

[0022] When the spring 14 needs to be installed on the limit rod 13, the spring 14 is installed through the moving plate 10. After the spring 14 is installed, the movement of the spring is achieved by rotating the lead screw 8. When the spring moves to the clamping device for clamping, the spring 14 is pressed strongly by the hydraulic cylinder 11. The movement of the output end of the hydraulic cylinder 11 drives the limit plate 12 to move, causing the limit rod 13 to slide inside the spring 14, and the limit plate 12 presses the spring 14 strongly.

[0023] The functional principle of the present utility model can be described through the following operation method:

[0024] When the spring 14 needs to be installed on the limit rod 13, the spring 14 is installed by moving the moving plate 10. After the spring 14 is installed, the spring is moved by rotating the lead screw 8. When one end of the spring enters the clamping device, the clamping of the spring 14 is realized by controlling the movement of the jaws on the four-jaw chuck 16. The rubber gasket 18 fixes one end of the spring. After the spring 14 is fixed, the spring 14 is strongly pressed by the hydraulic cylinder 11. The movement of the output end of the hydraulic cylinder 11 drives the limit plate 12 to move, so that the limit rod 13 slides in the spring 14. The limit plate 12 strongly presses the spring 14. By setting the clamping device, the utility model axially fixes one end of the spring to prevent the spring from slipping or deforming during the strong pressing process. By setting the arc-shaped guard plate, it is prevented that the excessive deformation of the spring causes the spring to break and thus causes casualties.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A horizontal strong press for processing lightweight springs of excavators, comprising a base (1) and a lead screw (8), characterized in that, The upper surface of the base (1) is symmetrically provided with sliding grooves (2) at the front and rear ends. A first protective cover (3) is slidably connected in the sliding grooves (2). A square groove (6) is provided at the center of the upper surface of the base (1). Bearings (7) are fixedly connected to both ends of the upper surface of the square groove (6). Both ends of the lead screw (8) are respectively fixedly connected in the two bearings (7). A servo motor (9) is fixedly connected to the side surface of the base (1). The output end of the servo motor (9) is fixedly connected to one end of the lead screw (8). A moving plate (10) is threadedly connected to the lead screw (8). Hydraulic cylinders (11) are symmetrically fixedly connected to the side surface of the moving plate (10). The output ends of the two hydraulic cylinders (11) penetrate and are slidably connected to the side surface of the moving plate (10). A fixing plate (15) is fixedly connected to the upper surface of the base (1). A four-jaw chuck (16) is fixedly connected through the side surface of the fixing plate (15).

2. The horizontal strong press for processing lightweight springs of an excavator according to claim 1, characterized in that, The fixing plate (15) and the moving plate (10) are horizontally arranged, and the lead screw (8) and the fixing plate (15) are vertically arranged.

3. A horizontal strong press for processing lightweight springs of an excavator according to claim 1, characterized in that, The output end of the hydraulic cylinder (11) is fixedly connected with a limiting plate (12). A limiting rod (13) is fixedly connected to the side surface of the limiting plate (12). A spring (14) is slidably connected to the limiting rod (13).

4. A horizontal strong press for processing lightweight springs of an excavator according to claim 1, characterized in that, Arc-shaped protective plates (17) are fixedly connected to the upper surfaces of the jaws of the four-jaw chuck (16). Rubber gaskets (18) are fixedly connected to the inner side surfaces of the arc-shaped protective plates (17) near one end of the four-jaw chuck (16).

5. The horizontal strong press for processing lightweight springs of an excavator according to claim 3, characterized in that, The limiting rod (13) and the four-jaw chuck (16) are concentrically arranged.

6. The horizontal strong press for processing lightweight springs of an excavator according to claim 1, characterized in that, A second protective cover (4) is slidably connected to the inner wall of the first protective cover (3). A handle (5) is fixedly connected to the front side surface of the second protective cover (4). The bottom of the second protective cover (4) is slidably connected in the sliding groove (2).

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