Positioning jig for machining sheet-shaped workpiece

Abstract

The positioning jig comprises a base, a first protection plate and a second protection plate, the two ends of the base are connected with the first protection plate and the second protection plate respectively, and the same baffle is connected between the first protection plate and the base and between the second protection plate and the base. A same threaded rod is rotatably connected between the first protection plate and the second protection plate, a moving plate is in threaded connection with the threaded rod, one end of the threaded rod is connected with a hand wheel, the hand wheel is located on the outer side of the second protection plate, hydraulic rods are installed on the sides, away from each other, of the moving plate and the first protection plate, and the output ends of the two hydraulic rods are connected with L-shaped blocks. And the two L-shaped blocks are in sliding fit with the first protection plate and the movable plate correspondingly, operation is easy, a workpiece can be positioned in the vertical direction and the horizontal direction, and stability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning jigs, in particular to a positioning jig used for processing sheet workpieces. Background Art

[0002] Jigs are a large category of tools for carpentry, ironwork, fitter, machinery, electronic control and other handicrafts. They are mainly used to assist in controlling position or movement (or both). However, when processing thin workpieces, the workpieces are relatively thin and easy to slip out of the jig slot, making processing difficult, which not only affects work efficiency, but also reduces the yield rate of products.

[0003] The utility model with publication number CN218476564U relates to the field of positioning jigs and relates to a thin film sintering positioning jig. The utility model comprises: a frame and a fixing sheet, wherein the frame comprises a U-shaped plate and an L-shaped column, wherein a frame groove one is arranged inside the U-shaped plate, the L-shaped column is symmetrically fixedly arranged on the upper end of the U-shaped plate, a frame groove two which is flush with the frame groove one is arranged inside the L-shaped column, a receiving groove is arranged inside the fixing sheet, limiting holes which are symmetrically arranged on the fixing sheet and are sleeved on the L-shaped column, the limiting holes are connected to the receiving groove, limiting grooves one are arranged at both ends of the receiving groove of the fixing sheet, limiting grooves two are arranged at the rear side of the receiving groove, a horizontal convex portion is arranged on the limiting groove one, and a vertical convex portion is arranged on the limiting groove two. A multi-layer stacking design is adopted, which is convenient for placement and ensures that each product can meet the placement requirements. The fixing sheet structure cooperates with the frame structure to solve the problem of copper foil offsetting out of the substrate.

[0004] The positioning fixture designed in the above utility model has some restrictions on the size of the workpiece, and when positioning workpieces of different thicknesses, it is necessary to change the depth of the limit groove by changing the number of fixing plates to achieve the positioning requirement. The device is complicated to operate and has low work efficiency. Summary of the invention

[0005] The utility model aims to provide a positioning fixture for processing sheet workpieces, so as to solve the problems of complicated operation and low working efficiency proposed in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning fixture for processing sheet workpieces, comprising a base, a first protective plate and a second protective plate, the two ends of the base are respectively connected to the first protective plate and the second protective plate, a same baffle is connected between the first protective plate, the second protective plate and the base, a same threaded rod is rotatably connected between the first protective plate and the second protective plate, a movable plate is threadedly connected to the threaded rod, and a handwheel is connected to one end of the threaded rod, the handwheel is located on the outside of the second protective plate, hydraulic rods are installed on the side of the movable plate and the first protective plate away from each other, the output ends of the two hydraulic rods are connected to L-shaped blocks, and the two L-shaped blocks are slidably adapted on the first protective plate and the movable plate respectively.

[0007] Preferably, a threaded hole is provided on the movable plate, and the threaded hole is adapted to the threaded rod.

[0008] Preferably, the first protective plate and the second protective plate are connected to a same limiting rod, and the movable plate is provided with a sliding hole, which is adapted to the limiting rod.

[0009] Preferably, the first protective plate and the second protective plate are both provided with connecting holes, and the connecting holes are adapted to the threaded rods.

[0010] Preferably, a storage groove is provided on the side where the first protective plate and the movable plate are close to each other, and the two storage grooves are at the same height.

[0011] Preferably, the first protective plate and the movable plate are both provided with sliding grooves, which are adapted to the L-shaped blocks.

[0012] Preferably, the first protective plate and the movable plate are both provided with connecting grooves, and the bottom walls of the two L-shaped blocks are both provided with connecting blocks, which are matched with the connecting grooves.

[0013] The beneficial effects of the utility model are:

[0014] In the utility model, the workpiece is placed on the first protective plate and the movable plate, and then the hand wheel is rotated, which drives the threaded rod to rotate, so that the movable plate moves toward the first protective plate, thereby confining the workpiece between the first protective plate and the movable plate through the movable plate, and then the two hydraulic rods are turned on, and the output ends of the two hydraulic rods move toward the main body, thereby driving the two L-shaped blocks to move toward the baffle plate. When the L-shaped blocks move, the workpiece is pushed to move in the direction of the baffle plate until the workpiece contacts the baffle plate, thereby completing the positioning of the workpiece. The device is simple to operate, can position the workpiece from both vertical and horizontal directions, and has high stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional structural schematic diagram of a positioning fixture for processing sheet workpieces proposed by the utility model;

[0016] Figure 2 This is a front cross-sectional structural schematic diagram of a positioning fixture for sheet workpiece processing proposed by the utility model;

[0017] Figure 3 This is a schematic diagram of the enlarged structure of position A of a positioning fixture for processing sheet workpieces proposed by the utility model;

[0018] Figure 4 The utility model is a schematic diagram of the cross-sectional structure of a threaded rod of a positioning fixture for processing sheet workpieces.

[0019] In the figure: 1. base; 2. first protective plate; 3. second protective plate; 4. baffle; 5. threaded rod; 6. movable plate; 7. hand wheel; 8. hydraulic rod; 9. L-shaped block; 10. threaded hole; 11. limit rod; 12. sliding hole; 13. connecting hole; 14. storage slot; 15. sliding slot; 16. connecting slot; 17. connecting block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Specifically, a positioning fixture for processing sheet workpieces includes a base 1, a first protective plate 2 and a second protective plate 3, the two ends of the base 1 are respectively connected to the first protective plate 2 and the second protective plate 3, a same baffle 4 is connected between the first protective plate 2, the second protective plate 3 and the base 1, a same threaded rod 5 is rotatably connected between the first protective plate 2 and the second protective plate 3, a movable plate 6 is threadedly connected to the threaded rod 5, and a handwheel 7 is connected to one end of the threaded rod 5, the handwheel 7 is located on the outer side of the second protective plate 3, a hydraulic rod 8 is installed on the side where the movable plate 6 and the first protective plate 2 are away from each other, the output ends of the two hydraulic rods 8 are connected to L-shaped blocks 9, and the two L-shaped blocks 9 are slidably adapted on the first protective plate 2 and the movable plate 6 respectively.

[0022] When the positioning fixture is used, the workpiece is first placed on the first protective plate 2 and the movable plate 6, and then the hand wheel 7 is turned. The hand wheel 7 drives the threaded rod 5 to rotate, so that the movable plate 6 moves toward the first protective plate 2, thereby limiting the workpiece between the first protective plate 2 and the movable plate 6 through the movable plate 6, and then the two hydraulic rods 8 are turned on, and the output ends of the two hydraulic rods 8 move toward the main body, thereby driving the two L-shaped blocks 9 to move toward the baffle 4. When the L-shaped block 9 moves, it pushes the workpiece to move toward the baffle 4 until the workpiece contacts the baffle 4, thereby completing the positioning of the workpiece. The device is simple to operate, can position the workpiece from both vertical and horizontal directions, and has high stability.

[0023] Specifically, in this embodiment, a threaded hole 10 is opened on the movable plate 6, and the threaded hole 10 is adapted to the threaded rod 5, so that the movable plate 6 can be threadedly connected to the threaded rod 5 through the threaded hole 10. When the threaded rod 5 rotates, it can drive the movable plate 6 to move synchronously, thereby realizing power transmission.

[0024] Specifically, in the present embodiment, the first protective plate 2 and the second protective plate 3 are connected with the same limiting rod 11, and a sliding hole 12 is provided on the movable plate 6, which is adapted to the limiting rod 11, so that the movable plate 6 can be slidably installed on the limiting rod 11. When the threaded rod 5 drives the movable plate 6 to rotate, the movable plate 6 cannot rotate due to the limiting rod 11 being slidably connected to the movable plate 6, and can only move along the direction of the limiting rod 11.

[0025] Specifically, in the present embodiment, connecting holes 13 are provided on the first protective plate 2 and the second protective plate 3, and the connecting holes 13 are adapted to the threaded rod 5, so that the two ends of the threaded rod 5 can be rotatably installed on the first protective plate 2 and the second protective plate 3 respectively through the corresponding connecting holes 13, and the end of the threaded rod 5 close to the handwheel 7 can be connected to the handwheel 7 through the corresponding connecting hole 13, so that the handwheel 7 can drive the threaded rod 5 to rotate synchronously.

[0026] Specifically, in this embodiment, a storage groove 14 is opened on the side where the first protective plate 2 and the movable plate 6 are close to each other, and the two storage grooves 14 are at the same height, so that the workpiece can be placed on the plane formed by the two storage grooves 14 and then positioned by other components.

[0027] Specifically, in this embodiment, a slide groove 15 is provided on the first protective plate 2 and the movable plate 6, and the slide groove 15 is adapted to the L-shaped block 9, so that the two L-shaped blocks 9 can be slidably connected to the first protective plate 2 and the movable plate 6 respectively through the corresponding slide grooves 15, thereby providing a guarantee for the L-shaped block 9 to limit the position of the workpiece from the vertical direction.

[0028] Specifically, in the present embodiment, a connecting groove 16 is provided on the first protective plate 2 and the movable plate 6, and a connecting block 17 is installed on the bottom wall of the two L-shaped blocks 9. The connecting block 17 is adapted to the connecting groove 16, so that when the L-shaped block 9 moves, it can drive the connecting block 17 to move synchronously. The setting of the connecting block 17 enables the L-shaped block 9 to continuously keep the workpiece in a state where it can be pushed, thereby avoiding the situation where the workpiece is between the L-shaped block 9 and the storage groove 14 when the workpiece is too thin, causing the workpiece to be unable to contact the L-shaped block 9, thereby causing the L-shaped block 9 to be unable to push the workpiece.

[0029] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A positioning fixture for processing a sheet workpiece, comprising a base (1), a first protective plate (2) and a second protective plate (3), Features: The two ends of the base (1) are respectively connected to a first protective plate (2) and a second protective plate (3); a same baffle (4) is connected between the first protective plate (2), the second protective plate (3) and the base (1); a same threaded rod (5) is rotatably connected between the first protective plate (2) and the second protective plate (3); a movable plate (6) is threadedly connected to the threaded rod (5); one end of the threaded rod (5) is connected to a hand wheel (7); the hand wheel (7) is located outside the second protective plate (3); hydraulic rods (8) are installed on the side of the movable plate (6) and the first protective plate (2) away from each other; the output ends of the two hydraulic rods (8) are connected to L-shaped blocks (9); the two L-shaped blocks (9) are slidably adapted on the first protective plate (2) and the movable plate (6), respectively.

2. A positioning jig for processing sheet workpieces according to claim 1, Features: The movable plate (6) is provided with a threaded hole (10), and the threaded hole (10) is adapted to fit the threaded rod (5).

3. A positioning jig for processing sheet workpieces according to claim 1, Features: The first protective plate (2) and the second protective plate (3) are connected to a same limiting rod (11), and the movable plate (6) is provided with a sliding hole (12), which is adapted to fit the limiting rod (11).

4. A positioning jig for processing sheet workpieces according to claim 1, Features: The first protective plate (2) and the second protective plate (3) are both provided with connection holes (13), and the connection holes (13) are adapted to fit the threaded rods (5).

5. A positioning jig for processing sheet workpieces according to claim 1, Features: A storage groove (14) is provided on the side where the first protective plate (2) and the movable plate (6) are close to each other, and the two storage grooves (14) are at the same height.

6. A positioning jig for processing sheet workpieces according to claim 1, Features: The first protective plate (2) and the movable plate (6) are both provided with a sliding groove (15), and the sliding groove (15) is adapted to fit the L-shaped block (9).

7. A positioning jig for processing sheet workpieces according to claim 1, Features: The first protective plate (2) and the movable plate (6) are both provided with connecting grooves (16), and the bottom walls of the two L-shaped blocks (9) are both provided with connecting blocks (17), the connecting blocks (17) being adapted to the connecting grooves (16).

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