A positioning fixture for side opening of a workpiece

Abstract

The utility model discloses a positioning fixture for workpiece side opening, including the bottom plate, the outside sliding joint of bottom plate has the supporting plate, the inner wall sliding joint of supporting plate has the pressing plate, the outside fixed connection of pressing plate has two S type elastic pieces, the inner wall sliding joint of supporting plate has the pull plate, the inner wall fixed connection of bottom plate has the slide post, the outside sleeve of slide post has the elastic piece no.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, and more specifically, to a positioning fixture for a workpiece with a side opening. Background Technology

[0002] Positioning fixtures for drilling side holes are used to precisely fix the workpiece and ensure accurate positioning of the side hole. A common example is the V-block fixture, which uses a V-groove to fit against a cylindrical workpiece and automatically center it, aligning the workpiece axis with the fixture direction. This facilitates side hole positioning and is suitable for machining side holes on various cylindrical workpieces, improving drilling accuracy and efficiency.

[0003] Publication No. (CN219881865U) discloses a positioning fixture for drilling side holes in irregularly shaped workpieces, including a base, a clamping plate, a spring, a spring baffle, and a detection positioning pin. The base is T-shaped, with the clamping plate and spring baffle positioned on both sides of the vertical part of the base, parallel to each other. The spring is positioned between the vertical part of the base and the spring baffle. Guide posts are provided on both sides of the clamping plate, axially slidingly connected to the vertical part of the base, and the end faces of the guide posts are fixedly connected to the spring baffle. The supporting surface of the clamping plate matches the contour of the workpiece, and the space between the clamping plate and the vertical part of the base is used to clamp the workpiece. The detection positioning pin corresponds to the position of the hole to be detected on the workpiece, passes through the spring baffle and the vertical part of the base in sequence, and is fixedly connected to the base. One end of the detection positioning pin extends towards the workpiece. By setting up the clamping plate, spring, and spring baffle, the irregularly shaped workpiece is clamped; by setting up the detection positioning pin, the center positioning of the workpiece and the detection of the inner hole size are achieved.

[0004] However, this positioning fixture for drilling side holes in irregularly shaped workpieces has the following drawbacks: although it can clamp the workpiece for subsequent hole drilling, in actual use, vibration and shaking will occur when drilling side holes in the workpiece. At this time, simply relying on the force released by the spring to clamp and fix it will only make the vibration and shaking more severe, which will greatly affect the accuracy of drilling side holes in the workpiece, increase the production of defective workpieces, and fail to achieve a self-locking effect after clamping the workpiece. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a positioning fixture for a workpiece with a side opening, so as to solve the problem that the prior art cannot achieve self-locking after clamping the workpiece.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a positioning fixture for side-opening holes in a workpiece, comprising...

[0007] A base plate is slidably connected to the outside of the base plate, a pressure plate is slidably connected to the inner wall of the support plate, two S-shaped elastic elements are fixedly connected to the outside of the pressure plate, a pull plate is slidably connected to the inner wall of the support plate, a sliding column is fixedly connected to the inner wall of the base plate, an elastic element is sleeved on the outside of the sliding column, and a clamping plate is slidably connected to the inner wall of the base plate.

[0008] The inner wall of the support plate is provided with a sliding groove, the inner wall of the sliding column is provided with multiple slots, two guide rods are fixedly connected to the outside of the support plate, and a slider is fixedly connected to the inner wall of the support plate.

[0009] The pressure plate is slidably connected to the inner wall of the slide groove, and multiple gaskets are fixedly connected to the outside of the clamping plate. A guide groove is provided on the inner wall of the base plate, and two sliding holes are provided on the inner wall of the base plate.

[0010] The end of the S-shaped elastic element away from the pressure plate is fixedly connected to the inner wall of the support plate, and the outer side of the pull plate is fixedly connected to the inner wall of the pressure plate.

[0011] The sliding column is slidably connected to the inner wall of the support plate, and the elastic element is fixedly connected to the outside of the support plate.

[0012] The end of the pull plate away from the pressure plate is engaged with the inner wall of the slot, and the end of the elastic element away from the support plate is fixedly connected to the outside of the base plate.

[0013] The two guide rods are externally slidably connected to the inner wall of the sliding hole, and the slider is externally slidably connected to the inner wall of the guide groove;

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In the above scheme, pulling the pull plate pulls the clamping plate, then releasing the pull plate to place the workpiece between the clamping plate and the base plate, and then releasing the clamping plate, achieves automatic tight clamping according to the width of the workpiece. The side of the pull plate that contacts the sliding column is designed with an angle, while the other side is at a right angle. Therefore, when the clamping plate is released, it automatically clamps the workpiece under the potential energy of the elastic element. When clamping is completed, the clamping plate cannot be moved. This achieves a self-locking effect after clamping the workpiece, avoiding vibration and shaking of the workpiece during the drilling process, and improving the accuracy of drilling the workpiece. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2This is a schematic diagram of the guide rod structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the base plate structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the clamping plate structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the pull plate structure of this utility model;

[0021] Figure 6 for Figure 2 Enlarged view of point A in the middle.

[0022] [Figure Labels]

[0023] 1. Base plate; 2. Support plate; 3. Pressure plate; 4. S-shaped elastic element; 5. Pull plate; 6. Slide groove; 7. Slide column; 8. Elastic element one; 9. Slot; 10. Slider; 11. Guide rod; 12. Clamping plate; 13. Shim; 14. Guide groove; 15. Slide hole. Detailed Implementation

[0024] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0025] Example 1: Please refer to Figures 1 to 6 This utility model provides a technical solution: a positioning fixture for side opening of a workpiece, including a base plate 1, a support plate 2 slidably connected to the outside of the base plate 1, a pressure plate 3 slidably connected to the inner wall of the support plate 2, two S-shaped elastic elements 4 fixedly connected to the outside of the pressure plate 3, a pull plate 5 slidably connected to the inner wall of the support plate 2, a sliding column 7 fixedly connected to the inner wall of the base plate 1, an elastic element 8 sleeved on the outside of the sliding column 7, a clamping plate 12 slidably connected to the inner wall of the base plate 1, one end of the S-shaped elastic element 4 away from the pressure plate 3 fixedly connected to the inner wall of the support plate 2, the outside of the pull plate 5 fixedly connected to the inner wall of the pressure plate 3, the outside of the sliding column 7 slidably connected to the inner wall of the support plate 2, and the outside of the elastic element 8 fixedly connected to the outside of the support plate 2.

[0026] After pulling the pull plate 5, the clamping plate 12 is pulled again. Then, the pull plate 5 and the clamping plate 12 are released. Under the action of the potential energy released by the elastic element 8, the clamping plate 12 automatically clamps the workpiece. The inclined side of the pull plate 5 slides outside the slide column 7. After clamping, the other inclined side of the pull plate 5 is completely locked inside the slide column 7, so that the clamping plate 12 tightly clamps the workpiece. The design of the pull plate 5 allows the clamping plate 12 to automatically clamp the workpiece only when it is released. When the clamping plate 12 is subjected to vibration or shaking caused by the workpiece during the clamping process, and the clamping plate 12 wants to move in the opposite direction, the pull plate 5 is completely locked inside the slide column 7, preventing the movement of the clamping plate 12. The pull plate 5 achieves the effect of automatic locking after the workpiece is clamped, making the workpiece more stable during processing.

[0027] Example 2: Based on Example 1, in order to facilitate the pulling of the pull plate 5, the inner wall of the support plate 2 is provided with a sliding groove 6, the inner wall of the sliding column 7 is provided with multiple slots 9, two guide rods 11 are fixedly connected to the outside of the support plate 2, and a slider 10 is fixedly connected to the inner wall of the support plate 2. The end of the pull plate 5 away from the pressure plate 3 is engaged with the inner wall of the slot 9, and the end of the elastic element 8 away from the support plate 2 is fixedly connected to the outside of the base plate 1.

[0028] By pulling the pull plate 5, the clamping plate 12 is then pulled to clamp the workpiece. The pull plate 5 compresses the S-shaped elastic element 4 through the pressure plate 3, causing the S-shaped elastic element 4 to deform and release space. This allows the clamping plate 12 to leave the interior of the elastic element 8 in the slide column 7. When the clamping plate 12 is released, it automatically clamps the workpiece. Since one side of the pull plate 5 is slanted, when the clamping plate 12 is released, the outside of the pull plate 5 will slide outside the slide column 7 and the slot 9, and get stuck inside one of the slots 9 that is required to clamp the workpiece at the last distance. When a hole is drilled on the side of the workpiece, vibration will occur. At this time, the other slanted side of the pull plate 5 will be completely locked inside the slot 9 to achieve an automatic locking effect, so that the clamping plate 12 is tightly attached to the outside of the workpiece to clamp it, avoiding inaccurate drilling accuracy caused by workpiece shaking.

[0029] Example 3: Based on Example 2, in order to facilitate the movement of the clamping plate 12, the outer side of the pressure plate 3 is slidably connected to the inner wall of the slide groove 6, and multiple gaskets 13 are fixedly connected to the outer side of the clamping plate 12. The inner wall of the base plate 1 is provided with a guide groove 14, and the inner wall of the base plate 1 is provided with two sliding holes 15. The outer side of the two guide rods 11 is slidably connected to the inner wall of the sliding holes 15, and the outer side of the slider 10 is slidably connected to the inner wall of the guide groove 14.

[0030] When the clamping plate 12 is pulled, the support plate 2 will compress the elastic element 8 in the sliding column 7, so that it stores potential energy while being deformed. When the clamping plate 12 is released, the elastic element 8 will release potential energy and pull the clamping plate 12 through the guide rod 11 connected to the support plate 2, so that the clamping plate 12 is tightly attached to the outside of the workpiece for clamping, and at the same time, it is locked under the action of the pull plate 5.

[0031] The working process of this utility model is as follows:

[0032] First, by pulling the pull plate 5, and then pulling the clamping plate 12, the workpiece is clamped. The pull plate 5, through the pressure plate 3, compresses the S-shaped elastic element 4, causing it to deform and release spatially. This allows the clamping plate 12 to leave the interior of the elastic element 8 in the sliding column 7. When the clamping plate 12 is released, it automatically clamps the workpiece. Because one side of the pull plate 5 is angled, when the clamping plate 12 is released, the outer side of the pull plate 5 slides outside the sliding column 7 and the slot 9, locking into one of the slots 9 at the distance required for final workpiece clamping. When drilling holes on the side of the workpiece... When vibration occurs, the inclined side of the pull plate 5 will be completely locked inside the slot 9 to achieve an automatic locking effect, so that the clamping plate 12 is tightly attached to the outside of the workpiece for clamping, avoiding inaccurate opening accuracy caused by workpiece shaking; at the same time, when the clamping plate 12 is pulled, the support plate 2 will compress the elastic element 8 in the slide column 7, so that it stores potential energy while being deformed. When the clamping plate 12 is released, the elastic element 8 will release potential energy and pull the clamping plate 12 through the guide rod 11 connected to the support plate 2, so that the clamping plate 12 is tightly attached to the outside of the workpiece for clamping, and locked under the action of the pull plate 5.

[0033] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0034] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0035] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A positioning jig for a side opening of a workpiece, characterized by, Includes a base plate (1), a support plate (2) is slidably connected to the outside of the base plate (1), a pressure plate (3) is slidably connected to the inner wall of the support plate (2), two S-shaped elastic elements (4) are fixedly connected to the outside of the pressure plate (3), a pull plate (5) is slidably connected to the inner wall of the support plate (2), a sliding column (7) is fixedly connected to the inner wall of the base plate (1), an elastic element (8) is sleeved on the outside of the sliding column (7), and a clamping plate (12) is slidably connected to the inner wall of the base plate (1).

2. A positioning jig for side opening of a workpiece according to claim 1, wherein The inner wall of the support plate (2) is provided with a sliding groove (6), the inner wall of the sliding column (7) is provided with multiple slots (9), two guide rods (11) are fixedly connected to the outside of the support plate (2), and a slider (10) is fixedly connected to the inner wall of the support plate (2).

3. A positioning fixture for side opening of a workpiece according to claim 2, wherein The pressure plate (3) is slidably connected to the inner wall of the slide groove (6), and multiple gaskets (13) are fixedly connected to the outside of the clamping plate (12). A guide groove (14) is provided on the inner wall of the base plate (1), and two sliding holes (15) are provided on the inner wall of the base plate (1).

4. The positioning fixture for side opening of a workpiece according to claim 1, wherein The S-shaped elastic element (4) is fixedly connected to the inner wall of the support plate (2) at one end away from the pressure plate (3), and the outer side of the pull plate (5) is fixedly connected to the inner wall of the pressure plate (3).

5. The positioning fixture for side opening of a workpiece according to claim 1, wherein The sliding column (7) is slidably connected to the inner wall of the support plate (2), and the elastic element (8) is fixedly connected to the outside of the support plate (2).

6. A positioning fixture for side access to a workpiece according to claim 2, wherein, The end of the pull plate (5) away from the pressure plate (3) is engaged with the inner wall of the slot (9), and the end of the elastic element (8) away from the support plate (2) is fixedly connected to the outside of the base plate (1).

7. The positioning fixture for side opening of a workpiece according to claim 3, wherein The two guide rods (11) are externally slidably connected to the inner wall of the sliding hole (15), and the slider (10) is externally slidably connected to the inner wall of the guide groove (14).

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