Positioning clamp for non-magnetic pipe machining

Abstract

The utility model relates to the field of positioning clamps, in particular to a positioning clamp for processing a non-magnetic pipe, which is characterized in that a lower clamping plate is arranged on the bottom side of the middle of a mounting frame, an upper clamping plate is arranged right above the lower clamping plate, the upper clamping plate vertically moves through a screw rod piece, and a plurality of limiting grooves are formed in the inner walls of the upper clamping plate and the lower clamping plate; and a pressing block is mounted in each limiting groove in a limiting manner. According to the utility model, the outer wall of the pipe fitting is clamped through the upper clamping plate and the lower clamping plate, the upper clamping plate and the lower clamping plate are provided with the multi-directional self-adaptive moving pressing blocks so as to effectively cling to and abut against the pipe wall, and the electromagnet is electrified to realize the locking function of the pressing blocks, so that the pressing blocks can apply uniform and effective pressing and clamping force to the pipe wall; the processing stability is ensured.

Description

Technical Field

[0001] This utility model relates to the field of positioning fixture technology, and in particular to a positioning fixture for processing non-magnetic pipes. Background Technology

[0002] Non-magnetic pipes refer to pipes with a magnetic permeability close to or equal to the vacuum magnetic permeability, which hardly produce magnetization in a magnetic field.

[0003] In the existing technology, when processing the surface of pipes, the pipes are usually positioned in positioning fixtures. The clamping surface of traditional positioning fixtures is generally rough in order to improve the positioning effect, and they usually apply a large clamping force to the outer wall of the pipe. The force is concentrated in one point, which can easily damage the surface of the pipe and affect the processing accuracy. Therefore, there is an urgent need for a non-magnetic positioning fixture for pipe processing. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a positioning fixture for non-magnetic pipe processing.

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

[0006] A positioning fixture for processing non-magnetic pipes includes a mounting frame. A lower clamping plate is provided on the bottom side of the middle part of the mounting frame, and an upper clamping plate is provided directly above the lower clamping plate. The upper clamping plate can move vertically through a screw rod. Multiple limiting grooves are provided on the inner walls of the upper and lower clamping plates, and a pressure block is installed in each limiting groove.

[0007] The bottom of the pressure block is connected to a connecting frame, which is connected to the limiting groove by a tightening spring. The connecting frame has slots on both sides and is equipped with magnetic plates. The magnetic plates are in contact with the electromagnets provided on the inner wall of the limiting groove. When the electromagnets are energized, the electromagnets and magnetic plates are electromagnetically attracted and connected.

[0008] In addition, a preferred structure is that a lead screw is screwed to one side of the upper part of the mounting bracket, and the bottom of the lead screw is rotatably connected to the top of the upper clamping plate.

[0009] In addition, a preferred structure is that a slider is provided on one side of the upper clamping plate, and the slider is slidably installed in a groove opened in the inner side wall of the mounting frame.

[0010] In addition, a preferred configuration is that an anti-slip pad is connected to the upper part of the pressure block.

[0011] Furthermore, in a preferred configuration, the electromagnet is electrically connected to an external electromagnet control mechanism via a wire.

[0012] Furthermore, in a preferred configuration, the clamping surfaces of both the upper and lower clamping plates are arc-shaped.

[0013] The beneficial effects of this utility model are as follows:

[0014] In this invention, the outer wall of the pipe is clamped by upper and lower clamping plates, and multi-directional adaptive moving pressure blocks are provided on the upper and lower clamping plates to effectively fit and press against the pipe wall. The pressure blocks are locked by energizing the electromagnet, thereby enabling the pressure blocks to apply a uniform and effective clamping force to the pipe wall and ensuring processing stability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the external structure of a positioning fixture for processing non-magnetic pipes according to the present invention.

[0016] Figure 2 This is a schematic diagram of the external structure of the lower clamping plate proposed in this utility model;

[0017] Figure 3 This is a cross-sectional view of the internal structure of the lower clamping plate proposed in this utility model;

[0018] Figure 4 This is a schematic diagram of the external structure of the pressing block proposed in this utility model;

[0019] Figure 5 This is a schematic diagram of the internal structure of the limiting groove proposed in this utility model.

[0020] In the diagram: 1. Mounting bracket, 2. Lower clamping plate, 3. Upper clamping plate, 4. Lead screw, 5. Slide groove, 6. Slider, 7. Pressure block, 8. Limiting groove, 9. Tightening spring, 10. Connecting bracket, 11. Magnetic sheet, 12. Anti-slip pad, 13. Electromagnet. Detailed Implementation

[0021] 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.

[0022] Reference Figure 1-5 A positioning fixture for processing non-magnetic pipes includes a mounting frame 1. A lower clamping plate 2 is provided on the bottom side of the middle part of the mounting frame 1, and an upper clamping plate 3 is provided directly above the lower clamping plate 2. The upper clamping plate 3 can move vertically through a screw rod 4. Multiple limiting grooves 8 are provided on the inner walls of the upper clamping plate 3 and the lower clamping plate 2, and a pressure block 7 is installed in each limiting groove 8.

[0023] Furthermore, the bottom of the pressure block 7 is connected to a connecting frame 10, which is connected to the limiting groove 8 by a tightening spring 9. The connecting frame 10 has slots on both sides and is equipped with magnetic plates 11. The magnetic plates 11 are in contact with the electromagnets 13 provided on the inner wall of the limiting groove 8, and when the electromagnets 13 are energized, the electromagnets 13 and magnetic plates 11 are electromagnetically attracted and connected.

[0024] A lead screw 4 is screwed to one side of the upper part of the mounting bracket 1. The bottom of the lead screw 4 is rotatably connected to the top of the upper clamping plate 3. By rotating the lead screw 4, the upper clamping plate 3 can be moved vertically to achieve clamping.

[0025] A slider 6 is provided on one side of the upper clamping plate 3. The slider 6 is slidably installed in the groove 5 opened on the inner side wall of the mounting frame 1. The vertical movement of the upper clamping plate 3 is realized through the cooperation of the groove 5 and the slider 6.

[0026] The upper part of the pressure block 7 is connected to an anti-slip pad 12, which is made of polyurethane material.

[0027] Electromagnet 13 is electrically connected to an external electromagnet control mechanism via a wire. The external electromagnet control mechanism controls the electromagnet 13 to be energized to generate electromagnetic attraction.

[0028] The clamping surfaces of the upper clamping plate 3 and the lower clamping plate 2 are both arc-shaped.

[0029] In this embodiment, the upper clamping plate 3 is driven to move downward by the rotation of the lead screw 4, and works with the lower clamping plate 3 to clamp and lock the outer wall of the pipe fitting. When the pressure block 7 assembly set on the inner wall of the upper clamping plate 3 and the lower clamping plate 3 comes into contact with the outer wall of the pipe fitting, the pressure block 7 moves through the limiting groove 8. The pressure block 7 at different angle positions presses against the corresponding position on the outer wall of the pipe fitting, and under the action of the pressing spring 9, the pressure block 7 is firmly pressed against the pipe wall, and the anti-slip pad 12 improves the contact tightness and friction.

[0030] Furthermore, when the upper clamping plate 3 is stably pressed against the pipe wall, the electromagnet 13 is energized by the external electromagnet control mechanism to generate electromagnetic attraction, so that the electromagnet 13 in the limiting groove 8 firmly attracts the magnetic sheet 11 set at the bottom of the pressure block 7. At this time, the position of the pressure block 7 no longer changes, and the pressure block 7 at each different angle position completes the locking at the position that best fits the pipe wall, and effectively clamps and locks the outer wall of the pipe. At this time, the clamping effect between the upper and lower clamping plates can still be improved by slightly rotating the screw 4.

[0031] The device applies a uniform clamping force to the pipe wall, effectively clamping the outer wall of the pipe. Compared with traditional positioning clamps, this mechanism reduces damage to the pipe wall during operation and applies a multi-directional, uniform, and stable clamping force to the pipe wall to ensure clamping stability.

[0032] It is worth noting that the specific circuit connection and installation of electromagnet 13 are existing technologies and will not be explained further.

[0033] 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 positioning fixture for processing non-magnetic pipes, comprising a mounting frame (1), characterized in that, The mounting bracket (1) has a lower clamping plate (2) on the bottom side of the middle part, and an upper clamping plate (3) is provided directly above the lower clamping plate (2). The upper clamping plate (3) moves vertically through a screw rod (4). The inner walls of the upper clamping plate (3) and the lower clamping plate (2) are provided with multiple limiting grooves (8), and each limiting groove (8) is fitted with a pressure block (7). The bottom of the pressure block (7) is connected to a connecting frame (10). The connecting frame (10) is connected to the limiting groove (8) by a tightening spring (9). The connecting frame (10) has slots on both sides and is equipped with magnetic plates (11). The magnetic plates (11) are in contact with the electromagnet (13) provided on the inner wall of the limiting groove (8). When the electromagnet (13) is energized, the electromagnet (13) and the magnetic plates (11) are electromagnetically attracted and connected.

2. The positioning fixture for processing non-magnetic pipes according to claim 1, characterized in that, A lead screw (4) is screwed to one side of the upper part of the mounting bracket (1), and the bottom of the lead screw (4) is rotatably connected to the top of the upper clamping plate (3).

3. The positioning fixture for processing non-magnetic pipes according to claim 1, characterized in that, A slider (6) is provided on one side of the upper clamping plate (3), and the slider (6) is slidably installed in the groove (5) opened on the inner side wall of the mounting frame (1).

4. A positioning fixture for processing non-magnetic pipes according to claim 1, characterized in that, The upper part of the pressure block (7) is connected to an anti-slip pad (12).

5. A positioning fixture for processing non-magnetic pipes according to claim 1, characterized in that, The electromagnet (13) is electrically connected to an external electromagnet control mechanism via a wire.

6. A positioning fixture for processing non-magnetic pipes according to claim 1, characterized in that, The clamping surfaces of the upper clamping plate (3) and the lower clamping plate (2) are both arc-shaped.

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