Fixture for cutting polytetrafluoroethylene pipe

Abstract

The utility model discloses a clamp for cutting a teflon pipe, belongs to the technical field of teflon pipe production, and aims to solve the problems that a traditional cutting mode in the prior art depends on manual marking or a simple measuring tool, the stability of the cutting length is difficult to guarantee, measurement is needed firstly and then fixation is needed, the steps are tedious, errors are easy to accumulate, and the operation efficiency is low. Comprising a supporting table, a pressing rod, a mounting mechanism and a pipeline groove, the pipeline groove matched with a polytetrafluoroethylene pipe is horizontally formed in the upper surface of the supporting table, the pressing rod is horizontally arranged above the supporting table, and the mounting mechanism horizontally slides along the pipeline groove; and the mounting mechanism comprises sliding blocks, a mounting block and adjusting screw rods, the adjusting screw rods and the sliding blocks are symmetrically distributed on the two sides of the mounting block, and a moving groove is horizontally formed in the surface of the mounting block. According to the clamp for cutting the polytetrafluoroethylene pipe, through the design of real-time measurement and positioning and linkage of the pointer and the scale marks, the requirement for real-time observation of the cutting size is met, axial movement or radial deviation of a pipeline during cutting is eliminated, and it is guaranteed that the cutting face is flat and free of inclination.

Description

Technical Field

[0001] This utility model belongs to the field of PTFE tube production technology, specifically relating to a PTFE tube cutting fixture. Background Technology

[0002] In industries such as chemical, electronics, pharmaceutical, and food processing, polytetrafluoroethylene (PTFE, or PTFE tubing) is widely used in fluid transportation, equipment connection, and process piping systems due to its excellent corrosion resistance, high temperature resistance, low coefficient of friction, and bioinertness. However, the processing of PTFE tubing, especially the cutting process, presents several technical challenges. Traditional cutting methods rely on manual marking or simple measuring tools, making it difficult to ensure the stability of the cutting length. Furthermore, the process requires measurement before fixing, which is cumbersome, prone to accumulating errors, and inefficient. Manually fixing the tubing requires repeated adjustments and measurements, which is tedious and prone to causing the cut surface to tilt due to vibration or accidental contact. In addition, the lack of effective fixation during actual on-site installation and cutting can cause the saw blade or cutter to slip due to tubing displacement, resulting in material waste or operator injury risks. Utility Model Content

[0003] (1) Technical problems to be solved

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a clamp for cutting PTFE tubes, which aims to solve the problems of the traditional cutting method relying on manual marking or simple measuring tools, making it difficult to ensure the stability of the cutting length, and requiring measurement before fixing, which is cumbersome, easy to accumulate errors, and has low operating efficiency.

[0005] (2) Technical solution

[0006] To solve the above-mentioned technical problems, this utility model provides a PTFE tube cutting fixture, including a support platform, a pressure rod, an installation mechanism, and a pipe groove. The upper surface of the support platform is horizontally provided with a pipe groove adapted to the PTFE tube. The pressure rod is horizontally positioned above the support platform. The installation mechanism slides horizontally along the pipe groove. The installation mechanism includes a slider, an installation block, and an adjusting screw. The adjusting screw and the slider are symmetrically distributed on both sides of the installation block. The surface of the installation block is horizontally provided with a moving groove. Two relatively movable clamping blocks are slidably installed in the moving groove. The slider and the installation block are L-shaped and fixedly connected to each other. A pointer is fixedly installed on the slider.

[0007] Optionally, the upper surface of the support platform is provided with an inner sliding groove, and the slider is adapted to slide in the inner sliding groove.

[0008] Optionally, a scale line is provided on the side of the inner groove on the upper surface of the support platform, and the pointer corresponds to the scale line.

[0009] Optionally, the clamping block has a threaded hole at one end that penetrates the moving groove, the adjusting screw is rotatably configured, and the outer wall is provided with opposite threads, the adjusting screw passes through the threaded hole.

[0010] Optionally, a fixing rod is fixedly installed on the outer wall of the support platform. The fixing rod is vertically arranged and has a lifting groove inside. The end of the pressure rod is slidably installed inside the lifting groove.

[0011] Optionally, the fixing rod has a threaded column rotatably mounted on its internal vertical thread, and the pressure rod has a connecting hole that is threadedly adapted to the threaded column.

[0012] Optionally, the side wall of the mounting block is provided with a hole for the adjusting screw to be rotatably mounted.

[0013] (3) Beneficial effects

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

[0015] This invention, through real-time measurement and positioning, and the linkage design of the pointer and scale lines, meets the need for real-time observation of cutting dimensions. The cooperation between the L-shaped slider and the pipe groove, combined with the vertical clamping of the pressure rod, eliminates the axial movement or radial offset of the pipe during cutting, ensuring a flat and tilt-free cut surface. The sliding slider can simultaneously complete positioning and fixing, avoiding the tedious steps of repeated measurement and adjustment in traditional methods, shortening the operation time. The double fixing structure prevents the saw blade from slipping, avoiding scratches or pinches to the operator caused by pipe displacement. It is especially suitable for mass production scenarios. The pipe groove and the pressure rod form a rigid support system, preventing the thin-walled hose from collapsing or burring during cutting, reducing subsequent grinding processes. The clamping block, through the flexible transmission of the threaded hole and the adjusting screw, avoids direct compression that could damage the pipe surface. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the installation mechanism.

[0019] Figure 3 for Figure 1 Enlarged structural diagram at point A in the middle;

[0020] Figure 4 This is a schematic diagram of a partial structure of the support platform.

[0021] The labels in the attached diagram are as follows: 1. Support platform; 2. Pipe groove; 3. Pressure rod; 4. Mounting mechanism; 5. Inner slide groove; 6. Clamping block; 7. Threaded hole; 8. Mounting block; 9. Slider; 10. Pointer; 11. Moving groove; 12. Adjusting screw; 13. Scale line; 15. Connecting hole; 16. Threaded post; 17. Fixing rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] This specific embodiment is a clamp for cutting PTFE tubes, and its structural schematic diagram is shown below. Figure 1 As shown, it includes a support platform 1, a pressure rod 3, an installation mechanism 4, and a pipe groove 2. The upper surface of the support platform 1 is horizontally provided with a pipe groove 2 adapted to a PTFE tube. The pressure rod 3 is horizontally positioned above the support platform 1, and the installation mechanism 4 slides horizontally along the pipe groove 2.

[0024] Reference Figure 2 , Figure 3 The mounting mechanism 4 includes a slider 9, a mounting block 8, and an adjusting screw 12. The adjusting screw 12 and the slider 9 are symmetrically distributed on both sides of the mounting block 8. A moving groove 11 is horizontally opened on the surface of the mounting block 8. Two relative moving clamping blocks 6 are slidably installed in the moving groove 11. The slider 9 and the mounting block 8 are L-shaped and fixedly connected to each other. A pointer 10 is fixedly installed on the slider 9.

[0025] The upper surface of the support platform 1 has a horizontally formed inner groove 5, and the slider 9 is fitted and slidably installed in the inner groove 5. A scale line 13 is provided on the side of the inner groove 5 on the upper surface of the support platform 1, and the pointer 10 corresponds to the scale line 13. One end of the clamping block 6, which inserts into the moving groove 11, has a threaded hole 7. The adjusting screw 12 is rotatably set, and its outer wall has opposite threads, through which the adjusting screw 12 passes.

[0026] Reference Figure 4 A fixing rod 17 is fixedly installed on the outer wall of the support platform 1. The fixing rod 17 is vertically arranged and has a lifting groove inside. The end of the pressure rod 3 is slidably installed inside the lifting groove. A threaded post 16 is rotatably installed on the internal vertical thread of the fixing rod 17. A connecting hole 15 is opened on the pressure rod 3, and the connecting hole 15 is threadedly matched with the threaded post 16. A hole is opened on the side wall of the mounting block 8 for the adjusting screw 12 to be rotatably installed.

[0027] Working principle: Pipe installation and clamping. The PTFE tube is placed into the pipe groove 2 of the support platform 1. The relative movement of the clamping blocks 6 is controlled by the adjusting screw 12. The outer wall of the adjusting screw 12 has opposite threads. When the adjusting screw 12 is rotated, the two clamping blocks 6 move closer or further away synchronously along the moving groove 11, realizing adaptive clamping of the PTFE tube. The threaded hole 7 of the clamping block 6 is engaged with the thread of the adjusting screw 12 to ensure uniform and adjustable clamping force and avoid deformation of thin-walled tubes. The slider 9 of the installation mechanism 4 is pushed to slide horizontally along the inner sliding groove 5, which drives the end of the pipe to move along the pipe groove 2. The slider 9 and the installation block 8 The L-shaped fixed connection ensures that the pipe does not deviate axially during the sliding process. The pointer 10 on the slider 9 indicates the scale line 13 on the surface of the support platform 1 in real time. The operator can intuitively read the sliding distance of the pipe, locate the cutting point, and adjust the height of the pressure rod 3 to press the pipe. The end of the pressure rod 3 is inserted into the lifting groove of the fixed rod 17. By rotating the threaded column 16, it is pressed down along the connecting hole 15 to achieve fine adjustment in the vertical direction, ensuring that the pipe will not deviate during cutting. The pressure rod 3 cooperates with the pipe groove 2 to form a double stable structure of "upper and lower clamping + horizontal fixation" to prevent axial or radial displacement of the pipe during cutting.

[0028] For the cutting operation, use a saw blade or knife to cut vertically along the pipe groove 2 at the end of the support platform 1, i.e. the cutting position. After the cutting is completed, release the clamping block 6 and the pressure rod 3, and take out the finished pipe section.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 clamp for cutting PTFE tubes, comprising a support platform (1), a pressure rod (3), an installation mechanism (4), and a pipe groove (2), characterized in that, The upper surface of the support platform (1) is horizontally provided with a pipe groove (2) adapted to the PTFE tube, the pressure rod (3) is horizontally arranged above the support platform (1), and the installation mechanism (4) slides horizontally along the pipe groove (2). The mounting mechanism (4) includes a slider (9), a mounting block (8), and an adjusting screw (12). The adjusting screw (12) and the slider (9) are symmetrically distributed on both sides of the mounting block (8). A moving groove (11) is horizontally opened on the surface of the mounting block (8). Two relative moving clamping blocks (6) are slidably installed in the moving groove (11). The slider (9) and the mounting block (8) are L-shaped and fixedly connected to each other. A pointer (10) is fixedly installed on the slider (9).

2. The PTFE tube cutting fixture according to claim 1, characterized in that, The upper surface of the support platform (1) is provided with an inner groove (5) and the slider (9) is adapted to slide in the inner groove (5).

3. The PTFE tube cutting fixture according to claim 2, characterized in that, The inner groove (5) is provided with a scale line (13) on the upper surface of the support platform (1) on the side, and the pointer (10) corresponds to the scale line (13).

4. The PTFE tube cutting fixture according to claim 1, characterized in that, The clamping block (6) has a threaded hole (7) at one end that enters the moving groove (11). The adjusting screw (12) is rotatably set and has opposite threads on its outer wall. The adjusting screw (12) passes through the threaded hole (7).

5. A PTFE tube cutting fixture according to claim 4, characterized in that, A fixing rod (17) is fixedly installed on the outer wall of the support platform (1). The fixing rod (17) is vertically arranged and has a lifting groove inside. The end of the pressure rod (3) is inserted into the lifting groove and slidably installed.

6. A PTFE tube cutting fixture according to claim 5, characterized in that, The fixed rod (17) has a threaded column (16) rotatably mounted on its internal vertical thread, and the pressure rod (3) has a connecting hole (15) that is threadedly matched with the threaded column (16).

7. A PTFE tube cutting fixture according to claim 1, characterized in that, The mounting block (8) has a hole on its side wall for the adjustment screw (12) to be rotated and installed.

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