Auxiliary positioning device for hydraulic shear of forming machine

Abstract

The utility model discloses a forming machine hydraulic shear auxiliary positioning device which comprises a working table, a material groove is formed in the upper end of the working table in a penetrating mode, a workpiece to be machined is filled in the material groove, a shearing groove is formed in the upper end of the working table in a penetrating mode, and the material groove and the shearing groove intersect. Two positioning plates are fixedly connected to the upper end of the workbench, positioning devices are arranged at the upper ends of the two positioning plates in a penetrating mode, a device box is arranged below the workbench and located under the shearing groove, and a device groove is formed in the upper end of the device box in a penetrating mode; the inner bottom of the device groove is fixedly connected with a limiting device, and the inner bottom of the device groove is fixedly connected with a guiding device. The positioning device has the advantages that an operator can conveniently operate and position a workpiece, and stability is enhanced.

Description

A hydraulic shear auxiliary positioning device for a molding machine Technical Field

[0001] This utility model relates to the field of hydraulic shear technology for molding machines, specifically an auxiliary positioning device for hydraulic shears in molding machines. Background Technology

[0002] Hydraulic shears for forming machines are devices that use a hydraulic system to drive blades for shearing operations. In the metal processing industry, such as steel and aluminum alloys, hydraulic shears for forming machines are widely used for shearing plates and bars. For example, in steel mills, hydraulic shears are used to cut large steel billets into the required dimensions for further processing into various construction steel materials, mechanical parts, etc. They can quickly and accurately shear high-strength metal materials, improving production efficiency. Hydraulic shears for forming machines also play an important role in automotive parts manufacturing. For instance, in the production of stamped automotive body parts, hydraulic shears are used for blanking and trimming steel plates, ensuring the dimensional accuracy and shape requirements of automotive parts, providing qualified materials for subsequent welding and assembly processes. Hydraulic shears for forming machines are also suitable for the forming of non-metallic materials such as plastics and rubber. In the production of plastic pipes and sheets, hydraulic shears are used to cut plastic raw materials into suitable lengths and shapes for subsequent forming processes. In rubber product manufacturing, hydraulic shears can be used to cut rubber sheets, rubber tubes, and other materials to meet different product requirements.

[0003] In the prior art, it is necessary to ensure the stability of the material connection during the shearing process of rod-shaped materials. When the hydraulic shear is applied, it is necessary to ensure that the two ends being sheared can maintain their own positions and reduce slippage. Therefore, we propose an auxiliary positioning device for hydraulic shears of forming machines. Summary of the Invention

[0004] The purpose of this utility model is to provide a hydraulic shear auxiliary positioning device for a molding machine to solve the problems existing in the prior art mentioned in the background.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A hydraulic shear auxiliary positioning device for a forming machine includes a workbench. A material trough is provided through the upper end of the workbench, and the material trough is filled with a workpiece to be processed. A shearing groove is provided through the upper end of the workbench, and the material trough intersects with the shearing groove. Two positioning plates are fixedly connected to the upper end of the workbench, and a positioning device is provided through the upper end of each of the two positioning plates. A device box is provided below the workbench, and the device box is located directly below the shearing groove. A device groove is provided through the upper end of the device box, and a limit device and a guide device are fixedly connected to the inner bottom of the device groove.

[0007] Preferably, the positioning device includes a threaded groove extending through the upper end of the positioning plate, a positioning screw being threadedly connected in the threaded groove, a connecting seat being fixedly connected to the tail end of the positioning screw, a positioning ball being rotatably connected to the lower end of the connecting seat, a positioning groove extending through the lower end of the positioning plate, the positioning ball being located in the positioning groove, the position of the positioning groove corresponding vertically to the position of the material groove, and the side wall of the positioning ball abutting against the side wall of the workpiece to be processed.

[0008] Preferably, the limiting device includes a hydraulic rod fixedly connected to the bottom of the device groove, a moving plate fixedly connected to the extended end of the hydraulic rod, and two limiting claws fixedly connected to the upper end of the moving plate. Both limiting claws are barbed and are sleeved on the side wall of the workpiece to be processed.

[0009] Preferably, the guiding device includes a guide post fixedly connected to the bottom of the device groove, and a guide hole is provided through the side wall of the moving plate at the corresponding position, and the guide post is slidably connected in the guide hole.

[0010] Preferably, the device box is connected to the workbench via multiple connecting columns.

[0011] Preferably, anti-slip pads are provided on the inner walls of both limiting claws.

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

[0013] In this invention, by setting a limiting device, a guiding device, and a positioning device in cooperation, the workbench designed in this device, along with the positioning plate and limiting claws, is used to limit the workpiece in the hydraulic shearing equipment of the forming machine. When shearing, the corresponding limiting claws are driven downwards, and the anti-slip pads can be used to position and fix the shearing part. The positioning balls on both sides can ensure the stability of the workpiece during the shearing process. Attached Figure Description

[0014] Figure 1 is a structural schematic diagram of a hydraulic shear auxiliary positioning device for a molding machine proposed in this utility model;

[0015] Figure 2 is a schematic diagram of the bottom side of the positioning plate of a hydraulic shear auxiliary positioning device for a molding machine proposed in this utility model.

[0016] Figure 3 is a schematic diagram of the bottom side view of the limiting claw of the hydraulic shear auxiliary positioning device for a molding machine proposed in this utility model.

[0017] In the diagram: 1. Workbench, 2. Workpiece to be processed, 3. Positioning plate, 4. Positioning screw, 5. Limiting claw, 6. Shearing groove, 7. Connecting column, 8. Device box, 9. Positioning groove, 10. Positioning ball, 11. Moving plate, 12. Guide column, 13. Hydraulic rod, 14. Anti-slip pad. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Referring to Figures 1-3, a hydraulic shear auxiliary positioning device for a molding machine includes a workbench 1. A material trough is provided through the upper end of the workbench 1, and a workpiece 2 to be processed is filled in the material trough. The workpiece 2 has a long strip structure, and both sides are precision milled to ensure dimensional accuracy. A shearing groove 6 is provided through the upper end of the workbench 1. The width of the shearing groove 6 is slightly larger than the thickness of the hydraulic shears to leave a working gap. The material trough and the shearing groove intersect, and the two grooves form a cross-shaped layout to complete multi-directional positioning. Two positioning plates 3 are fixedly connected to the upper end of the workbench 1. The positioning plates 3 are fixed to the upper surface of the workbench 1 by high-strength bolts. A positioning device is provided through the upper end of both positioning plates 3. The positioning device adopts a modular design for easy maintenance and replacement.

[0020] The positioning device includes a threaded groove running through the upper end of the positioning plate 3. The inner wall of the threaded groove is plated with a hard chrome layer to improve wear resistance. A positioning screw 4 is threaded into the threaded groove. The surface of the positioning screw 4 undergoes a special heat treatment process to enhance its mechanical properties. A connecting seat is fixedly connected to the tail end of the positioning screw 4. The connecting seat is made of ductile iron and has good shock absorption performance. A positioning ball 10 is rotatably connected to the lower end of the connecting seat. The surface of the positioning ball 10 is precision polished to reduce the coefficient of friction. A positioning groove 9 is running through the lower end of the positioning plate 3. The positioning groove 9 has a lubricating grease injection hole for easy daily maintenance. The positioning ball 10 is located in the positioning groove 9 and can be finely adjusted at multiple angles within the positioning groove 9. The position of the positioning groove corresponds vertically to the position of the material groove. This correspondence is precisely calibrated by a laser alignment instrument. The side wall of the positioning ball 10 abuts against the side wall of the workpiece 2 to be processed. The contact surface adopts a progressive pressure design to avoid damaging the workpiece surface.

[0021] The device box 8 is located below the workbench 1. The device box 8 is a fully enclosed structure to prevent cutting fluid from seeping in. The device box 8 is located directly below the shearing groove 6, with the centerline alignment deviation between the two not exceeding 0.05mm. A device groove runs through the upper end of the device box 8, and a waterproof sealing ring protects the internal components around the groove. A limit device is fixedly connected to the bottom of the groove. The limit device is equipped with a pressure sensor to monitor the clamping force in real time. The limit device includes a hydraulic rod 13 fixedly connected to the bottom of the groove. The hydraulic rod 13 uses servo control to achieve precise position adjustment. The extended end is fixedly connected to a motion plate 11. The surface of the motion plate 11 is anodized to improve corrosion resistance. Two limiting claws 5 are fixedly connected to the upper end of the motion plate 11. The limiting claws 5 are made of spring steel to ensure good elastic recovery performance. Both limiting claws 5 are barbed. The angle of the barbs is optimized by mechanical simulation to ensure the best clamping effect. Both limiting claws 5 are sleeved on the side wall of the workpiece 2 to be processed. This design can effectively prevent the workpiece from shifting during the processing. Anti-slip pads 14 are provided on the inner wall of both limiting claws 5. The anti-slip pads 14 are made of polyurethane material, which has both wear resistance and cushioning performance.

[0022] Specifically, a guide device is fixedly connected to the bottom of the device slot. The guide device adopts a linear guide rail structure to ensure smooth movement. The guide device includes a guide post 12 fixedly connected to the bottom of the device slot. The surface of the guide post 12 is coated with Teflon to reduce frictional resistance. A guide hole is provided through the side wall of the moving plate 11 at the corresponding position. A self-lubricating bronze bushing is installed in the guide hole to extend the service life. The guide post 12 is slidably connected in the guide hole, and the gap between the two is controlled within the range of 0.02-0.05mm.

[0023] It is worth mentioning that the device box 8 is connected to the workbench 1 through multiple connecting columns 7. The connecting columns 7 leave a gap between the device box 8 and the workbench 1, which makes it convenient for operators to clean up debris in this area later.

[0024] In this utility model, the operator inserts the workpiece 2 to be cut into the material trough. When the workpiece 2 moves to the position of the shearing groove 6, the operator can perform a shearing operation on it using the relevant hydraulic shears in the prior art. Before shearing, the hydraulic rod 13 located in the device box 8 will drive the corresponding moving plate 11 and two limiting claws 5 to descend. The two limiting claws 5 can position and fix the two sides of the shearing part of the workpiece 2, which can prevent the workpiece 2 from shaking and displacing when the operator performs shearing.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hydraulic shear auxiliary positioning device for a molding machine, comprising a workbench (1), characterized in that, A material trough is provided through the upper end of the workbench (1), and the workpiece (2) to be processed is filled in the material trough. A shearing groove (6) is provided through the upper end of the workbench (1), and the material trough intersects with the shearing groove. Two positioning plates (3) are fixedly connected to the upper end of the workbench (1), and a positioning device is provided through the upper end of each of the two positioning plates (3). A device box (8) is provided below the workbench (1), and the device box (8) is located directly below the shearing groove (6). A device groove is provided through the upper end of the device box (8), and a limit device is fixedly connected to the bottom of the device groove. A guide device is fixedly connected to the bottom of the device groove.

2. The hydraulic shear auxiliary positioning device for a molding machine according to claim 1, characterized in that, The positioning device includes a threaded groove through the upper end of the positioning plate (3), a positioning screw (4) is threadedly connected in the threaded groove, a connecting seat is fixedly connected to the tail end of the positioning screw (4), a positioning ball (10) is rotatably connected to the lower end of the connecting seat, a positioning groove (9) is through the lower end of the positioning plate (3), the positioning ball (10) is located in the positioning groove (9), the position of the positioning groove corresponds vertically to the position of the material groove, and the side wall of the positioning ball (10) abuts against the side wall of the workpiece (2) to be processed.

3. The hydraulic shear auxiliary positioning device for a molding machine according to claim 1, characterized in that, The limiting device includes a hydraulic rod (13) fixedly connected to the bottom of the device groove. The extended end of the hydraulic rod (13) is fixedly connected to a moving plate (11). Two limiting claws (5) are fixedly connected to the upper end of the moving plate (11). Both limiting claws (5) are barbed and are sleeved on the side wall of the workpiece (2) to be processed.

4. The hydraulic shear auxiliary positioning device for a molding machine according to claim 3, characterized in that, The guiding device includes a guide post (12) fixedly connected to the bottom of the device groove, and a guide hole is provided through the side wall of the moving plate (11) at the corresponding position. The guide post (12) is slidably connected in the guide hole.

5. The hydraulic shear auxiliary positioning device for a molding machine according to claim 1, characterized in that, The device box (8) is connected to the workbench (1) through multiple connecting columns (7).

6. The hydraulic shear auxiliary positioning device for a molding machine according to claim 3, characterized in that, Anti-slip pads (14) are provided on the inner walls of both limiting claws (5).

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