Positioning device for PTFE pipe machining

Abstract

The utility model discloses a positioning device for processing a PTFE (Polytetrafluoroethylene) pipe, which relates to the technical field of pipe processing and comprises a base and a linear motor frame, the linear motor frame is mounted at the top of the base, a fixed plate is fixedly connected to the top of one end of the base, a movable seat is mounted on the linear motor frame, and a movable plate is fixedly connected to the top of the movable seat. Through openings are formed in the opposite positions of the fixed plate and the movable plate in a penetrating mode, the inner sides of openings in the opposite sides of the two through openings are matched and rotationally connected with clamp discs, rotating grooves are formed in the positions, close to the middles of inner arcs of the through openings, of the fixed plate and the movable plate, and outer rings are matched and rotationally connected to the inner grooves of the rotating grooves. The clamp disc rotates in the through opening of the fixed plate and the through opening of the movable plate and is matched with the arc plate used for clamping, so that the two ends of a pipe can be positioned and clamped, then rotating machining is carried out, the clamping structure does not need to be disassembled and assembled repeatedly, efficient positioning machining use can be achieved, and the practicability and flexibility of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe processing, in particular to a positioning device for PTFE pipe processing. Background Art

[0002] PTFE tube is polytetrafluoroethylene tube. PTFE tube is made of high-quality plunger extrusion tube. Special processing technology is used to tightly combine steel tube and plastic tube, so that PTFE tube has reliable and excellent corrosion resistance and excellent chemical stability. It can withstand all strong acids, strong alkalis, strong oxidants, and does not react with various organic solvents. It is now widely used in the transportation of highly corrosive gases and liquids at high temperatures. This is irreplaceable by other pipelines. In addition, because PTFE is non-polar, heat-resistant and does not absorb water, it is also an excellent electrical insulating pipeline material.

[0003] The patent publication number of CN216566444U is searched and found to be "an auxiliary positioning and clamping tool for the production and processing of PTFE pipes", which includes a base and motors arranged on both sides of the base, a bracket is arranged on the upper side of the base, a clamping roller is arranged on one side of the bracket, connecting rods are arranged at both ends of the clamping roller, the connecting rods penetrate into the bracket, a buffer spring corresponding to the connecting rod is arranged in the bracket, a damping block is arranged on one side of the bracket, a screw is arranged in the base, a support roller is arranged in the middle of the upper side of the base, an adjustment frame is arranged between the support roller and the base, and the adjustment frame and the base are connected by bolts. The utility model drives the bracket to move through the screw, thereby driving the clamping roller to clamp the pipe. When clamping is required, the bracket moves, the buffer spring contracts, and the rotation of the clamping roller is limited by the damping block, thereby clamping the pipe, effectively ensuring the integrity of the pipe and ensuring reliable clamping.

[0004] The "auxiliary positioning and clamping tooling for PTFE pipe production and processing" recorded in the above patent document, the above scheme passes the end of the PTFE pipe through the brackets close to each other, and then uses the clamping roller to clamp the pipe to position, thereby facilitating the positioning processing of pipes of different specifications. During use, the brackets are driven close to each other by the screw and the motor to clamp the pipe. However, when grinding the surface of the pipe or drilling holes in multiple positions, the pipe needs to be rotated continuously. When rotating the pipe, the above scheme also needs to loosen the clamping mechanism a little, and then rotate the pipe, which makes the positioning processing process more cumbersome and less flexible. Utility Model Content

[0005] The purpose of the utility model is to provide a positioning device for PTFE tube processing to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a positioning device for PTFE tube processing, comprising a base and a linear motor frame, the linear motor frame is installed on the top of the base, a fixed plate is fixedly connected to the top position of one end of the base, the linear motor frame is installed with a movable seat, a movable plate is fixedly connected to the top of the movable seat, through-holes are penetrated through the relative positions of the fixed plate and the movable plate, the inner sides of the openings on opposite sides of the two through-holes are adapted and rotatably connected with a clamp disk, the fixed plate and the movable plate are both provided with a rotating groove near the middle position of the inner arc of the through-hole, the inner groove of the rotating groove is adapted and rotatably connected with an outer ring, three sliding grooves are provided on the surfaces of the opposite sides of the two clamp disks, the inner groove of the sliding groove is adapted and slidably connected with a slider, and the slider is fixedly connected with an arc plate on the outer side.

[0007] Furthermore, the inner grooves at one end of the three slide grooves that are relatively far away are all rotatably connected to a screw rod, and the screw rod is penetrated by the slider and movably matched and connected. A gear groove is opened inside the clamp plate near one end where the three slide grooves are close to each other, and the gear groove is connected to the slide groove to facilitate the transmission of synchronous movement of the arc plate.

[0008] Furthermore, the three screw rods are fixedly connected to one end near the gear groove with a No. 1 bevel gear, and the inner groove of the gear groove is rotatably connected with a rotating rod, the rotating rod and the screw rod are vertically arranged, and the end of the rotating rod away from the screw rod penetrates and is rotatably connected to the opposite side wall of the clamp disk, and the side position of the rotating rod close to the No. 1 bevel gear is fixedly connected with a No. 2 bevel gear, and the No. 2 bevel gear is meshed with the three No. 1 bevel gears, and the arc plate can be moved and fixed synchronously through the helical gears.

[0009] Furthermore, one end of the rotating rod passing through the side wall of the clamp plate is fixedly connected to a knob, and a non-slip pad is provided on the surface of the knob to facilitate manual clamping operation.

[0010] Furthermore, the outer arc wall of the outer ring inside the fixed plate is provided with external teeth, the fixed plate is provided with a connected circular groove near the bottom of the rotating groove, and a gear is rotatably connected inside the groove, the gear is meshed with the external teeth of the outer ring, and a servo motor is installed on the outer wall of the fixed plate away from the movable plate and relative to the gear, the output end of the servo motor passes through the side wall of the fixed plate and is fixedly connected to the gear, so as to facilitate the rotation processing of the pipe.

[0011] Furthermore, the fixed plate and the movable plate are fixedly connected with ball bearings near the inner wall of the rotating groove, and the rotating ring of the bearing is fixedly connected to the opposite side wall of the outer ring, so that the stability of the rotation of the outer ring is improved by the bearing.

[0012] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0013] 1. The utility model arranges the clamping plate to rotate in the openings of the fixed plate and the movable plate, and cooperates with the arc plate for clamping, so that the two ends of the pipe can be positioned and clamped, and then the rotating processing can be carried out, without repeatedly disassembling and assembling the clamping structure, so that efficient positioning processing can be achieved, and the practicality and flexibility of the device can be improved;

[0014] 2. The utility model arranges three movable arc plates on opposite sides of two clamp plates, so that the pipe can be flexibly clamped. The three arc plates can be inserted into the inner side of the pipe to expand and clamp it outward, or they can be retracted and clamped on the outer side of the pipe. With the movement of the movable plate, the pipe can be flexibly positioned and clamped, thereby facilitating flexible and efficient processing and positioning of pipes of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the fixing plate of the utility model;

[0018] Figure 3 It is a front cutaway structural schematic diagram of the fixing plate of the utility model;

[0019] Figure 4 It is a side cutaway schematic diagram of the fixed plate structure of the utility model;

[0020] Figure 5 This utility model Figure 4 A is an enlarged structural diagram of FIG.

[0021] In the figure: 1. base; 2. fixed plate; 3. linear motor frame; 4. moving seat; 5. movable plate; 6. through port; 7. fixture plate; 8. rotating groove; 9. outer ring; 10. slide groove; 11. slider; 12. arc plate; 13. screw rod; 14. gear groove; 15. No. 1 bevel gear; 16. rotating rod; 17. No. 2 bevel gear; 18. external teeth; 19. gear; 20. servo motor. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] As attached Figure 1 - Figure 5 A positioning device for PTFE tube processing shown in the figure comprises a base 1 and a linear motor frame 3. The linear motor frame 3 is an application of the prior art, and is a transmission device that directly converts electrical energy into linear motion mechanical energy without the need for any intermediate conversion mechanism. A tubular linear motor is used here. The linear motor frame 3 is mounted on the top of the base 1. A fixed plate 2 is fixedly connected to the top position of one end of the base 1. The linear motor frame 3 is mounted with a moving seat 4. A movable plate 5 is fixedly connected to the top of the movable seat 4. Through holes 6 are opened at relative positions of the fixed plate 2 and the movable plate 5. The inner sides of the openings on the opposite sides of the two through holes 6 are adapted and rotatably connected to a clamp plate 7. The fixed plate 2 and the movable plate 5 are fixedly connected to the fixed plate 2 and the movable plate 5. A rotating groove 8 is provided at the middle position of the inner arc of the movable plate 5 near the through-port 6, and the inner groove of the rotating groove 8 is adapted and rotatably connected to an outer ring 9. Ball bearings are fixedly connected to the fixed plate 2 and the movable plate 5 near the inner wall of the rotating groove 8, and the rotating ring of the bearing is fixedly connected to the opposite side wall of the outer ring 9. Three sliding grooves 10 are provided on the opposite side surfaces of the two clamp plates 7, and the inner groove of the sliding groove 10 is adapted and slidably connected to a slider 11, and an arc plate 12 is fixedly connected to the outer side of the slider 11. The three arc plates 12 can be used to clamp and fix the pipe in different ways from the outside or from the inside, thereby improving the flexibility of processing and use, and can fix pipes of different specifications, thereby improving the practicality of the device.

[0024] The outer arc wall of the outer ring 9 inside the fixed plate 2 is provided with external teeth 18, and the fixed plate 2 is provided with a connected circular groove near the bottom of the rotating groove 8, and a gear 19 is rotatably connected inside the groove, and the gear 19 is meshed with the external teeth 18 of the outer ring 9. The fixed plate 2 is away from the movable plate 5 and is installed with a servo motor 20 at the outer wall position relative to the gear 19. The servo motor 20 is an application of the prior art and will not be described in detail here. The output end of the servo motor 20 passes through the side wall of the fixed plate 2 and is fixedly connected to the gear 19. The gear 19 is driven to rotate by the servo motor 20, and the gear 19 drives the outer ring 9 to rotate in the rotating groove 8 through the external teeth 18, thereby driving the pipe to rotate.

[0025] The specific implementation method is as follows: when using, when processing PTFE pipes, it is necessary to grind them or perform surface hole processing, and positioning and fixing processing is required. At this time, first align one end of the pipe with the center of the clamp disk 7 on the fixed plate 2, and then insert the three arc plates 12 into the end of the pipe, and then slide the slider 11 synchronously in the slide groove 10. The three sliders 11 respectively drive the corresponding arc plates 12 to expand and move outward, and expand from the inside to the outside to fit into the inner groove of the pipe to complete the positioning and fixing of the pipe. After that, the linear motor frame 3 is started to drive the moving seat 4 and the movable plate 5 to approach the other end of the pipe, and then the other end of the pipe is fixed in the same way. The arc plate 12 of the clamp disk 7 of the movable plate 5 is used to fix the two ends of the pipe and locate the processing position. When the pipe needs to be rotated, the servo motor 20 is started to drive the gear 19 to rotate. The gear 19 drives the outer ring 9 to rotate in the rotating groove 8 through the meshing external teeth 18. The outer ring 9 ensures the stability of rotation during the rotation through the bearing. The outer ring 9 also drives the clamp disk 7 on the fixed plate 2 to rotate in the through port 6, and then the clamp disk 7 in the movable plate 5 connected with the pipe is also rotated, thereby realizing the rotation processing of the pipe, making the positioning processing more flexible, and no repeated disassembly and adjustment are required, so as to achieve convenient and efficient processing and use.

[0026] As attached Figure 2 - Figure 5The shown positioning device for PTFE tube processing has three relatively distant inner grooves of one end of the three slide grooves 10, which are rotatably connected to a screw rod 13. The screw rod 13 penetrates and is movably matched with a slider 11. The pipe is clamped by an arc plate 12, and the slider 11 is driven by the screw rod 13, so that the arc plate 12 can stably fix and position the pipe for processing. A gear groove 14 is provided inside the fixture plate 7 near one end of the three slide grooves 10 that are close to each other. The gear groove 14 is connected to the slide groove 10. The three screw rods 13 are fixedly connected to one end of the gear groove 14 near the first bevel gear 15. The inner groove of the gear groove 14 is rotatably connected to a rotating rod 16. The rotating rod 16 is vertically arranged with the screw rod 13. The end of the rotating rod 16 away from the screw rod 13 penetrates and is rotatably connected to the opposite side wall of the fixture plate 7. The side position of the rotating rod 16 near the first bevel gear 15 is fixedly connected to the second bevel gear 17, the second bevel gear 17 is meshed with the three first bevel gears 15, and the first bevel gear 15 and the second bevel gear 17 are all bevel gears meshing with each other for transmission, and the second bevel gear 17 is driven to rotate by the rotating rod 16, and then the second bevel gear 17 drives the three first bevel gears 15 to rotate synchronously, thereby realizing the synchronous rotation of the three screw rods 13, and further the three screw rods 13 can drive the three sliders 11 to move synchronously in the slide groove 10 through the threaded engagement, so that the three arc plates 12 can be synchronously expanded or retracted to fix pipes of different sizes, and the rotating rod 16 passes through one end of the side wall of the clamp plate 7 and is fixedly connected with a knob, and the surface of the knob is provided with an anti-skid pad, and the outer arc and inner arc of the arc plate 12 are also provided with anti-skid rubber pads, which can make the arc plate 12 more stable when fixing the inside and outside of the pipe, and prevent loosening during the processing process.

[0027] The specific implementation method is as follows: when in use, when the end of the pipe is positioned and fixed by the arc plate 12, it is sleeved on the outside of the arc plate 12 or inserted into the inside of the three arc plates 12 according to the size of the end of the pipe, and then the knob of the rotating rod 16 is turned by hand according to the fixing method, the rotating rod 16 rotates, and at the same time drives the No. 2 bevel gear 17 to rotate, the No. 2 bevel gear 17 drives the three No. 1 bevel gears 15 to rotate synchronously, and the three No. 1 bevel gears 15 respectively drive the corresponding screw rods 13 to rotate, and the No. 2 bevel gear 17 drives the three No. 1 bevel gears 15 to rotate synchronously, thereby realizing the three arc plates 12, When clamping the end of the pipe, it can be expanded outward or retracted synchronously to improve the stability of the clamping and fixing. At this time, the three screw rods 13 rotate synchronously, through the threaded connection between the screw rods 13 and the slider 11, and the slider 11 is limited in the slide groove 10 and cannot rotate with the screw rods 13, thereby realizing the sliding of the slider 11 in the slide groove 10, and then the three sliders 11 respectively drive the corresponding arc plates 12 to move, realizing the synchronous expansion or inward movement of the three arc plates 12, and then quickly clamping and fixing pipes of different sizes, so that the device can better quickly fix the processing and positioning.

[0028] Working principle of this utility model:

[0029] Refer to the instruction manual Figure 1 - Figure 5 When processing PTFE pipes, it is necessary to perform positioning and fixing processing when it needs to be polished or surface drilling. At this time, first align one end of the pipe with the center of the clamp disk 7 on the fixed plate 2, and then insert the three arc plates 12 into the end of the pipe, and then slide the slider 11 synchronously in the slide groove 10. The three sliders 11 respectively drive the corresponding arc plates 12 to expand and move outward, and then expand from the inside to the outside to fit into the inner groove of the pipe to fix one end of the pipe, and then conversely, it can also be clamped from the outside of the end of the pipe, and then start the linear motor frame 3 to drive the moving seat 4 and the movable plate 5 to approach the other end of the pipe, and then The other end of the pipe is fixed to the arc plate 12 of the clamping plate 7 of the movable plate 5 in the same way, so that the two ends of the pipe are fixed and the processing position is positioned. Then the pipe is polished or punched. During the process, the pipe needs to rotate. At this time, the servo motor 20 is started to drive the gear 19 to rotate. The gear 19 drives the outer ring 9 to rotate in the rotating groove 8 through the meshing external teeth 18. The outer ring 9 is ensured to rotate stably through the bearing during the rotation process. The outer ring 9 drives the clamping plate 7 on the fixed plate 2 to rotate in the through port 6 at the same time. Then, through the connection of the pipe, the clamping plate 7 in the movable plate 5 is also rotated, so that the pipe can be rotated.

[0030] For further information, please refer to the attached manual. Figure 2 - Figure 5 When the pipe end is positioned and fixed by the arc plate 12, the pipe end is sleeved on the outside of the arc plate 12 or inserted into the inside of the three arc plates 12 according to the size of the pipe end, and then the knob of the rotating rod 16 is manually turned according to the fixing method, the rotating rod 16 rotates, and at the same time drives the No. 2 bevel gear 17 to rotate, the No. 2 bevel gear 17 drives the three No. 1 bevel gears 15 to rotate synchronously, and the three No. 1 bevel gears 15 respectively drive the corresponding screw rods 13 to rotate. At this time, the three screw rods 13 rotate synchronously, through the threaded connection between the screw rod 13 and the slider 11, and the slider 11 is limited in the slide groove 10 and cannot rotate with the screw rod 13, thereby realizing the sliding of the slider 11 in the slide groove 10, and then the three sliders 11 respectively drive the corresponding arc plates 12 to move, realizing the synchronous outward expansion or inward movement of the three arc plates 12, thereby quickly clamping and fixing pipes of different sizes.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A positioning device for PTFE tube processing, comprising a base (1) and a linear motor frame (3), wherein the linear motor frame (3) is mounted on the top of the base (1), characterized in that: A fixed plate (2) is fixedly connected to the top position of one end of the base (1); a movable seat (4) is installed on the linear motor frame (3); a movable plate (5) is fixedly connected to the top of the movable seat (4); a through hole (6) is penetrated through the relative position of the fixed plate (2) and the movable plate (5); a fixture disk (7) is adapted and rotatably connected to the inner side of the openings on the opposite side of the two through holes (6); a rotating groove (8) is provided at the middle position of the inner arc of the fixed plate (2) and the movable plate (5) near the through hole (6); an outer ring (9) is adapted and rotatably connected to the inner groove of the rotating groove (8); three sliding grooves (10) are provided on the surfaces of the opposite side of the two fixture disks (7); a slider (11) is adapted and slidably connected to the inner groove of the sliding groove (10); an arc plate (12) is fixedly connected to the outer side of the slider (11).

2. A positioning device for PTFE tube processing according to claim 1, characterized in that: The inner grooves at one end of the three slide grooves (10) that are relatively far away are all rotatably connected to a screw rod (13), and the screw rod (13) and the slider (11) are penetrated and movably matched and connected. The clamp plate (7) is provided with a gear groove (14) inside the end close to the three slide grooves (10), and the gear groove (14) is connected to the slide groove (10).

3. A positioning device for PTFE tube processing according to claim 2, characterized in that: The three screw rods (13) are fixedly connected to one end of the gear groove (14) and are rotatably connected to a first bevel gear (15). The inner groove of the gear groove (14) is rotatably connected to a rotating rod (16). The rotating rod (16) and the screw rod (13) are arranged vertically. The end of the rotating rod (16) away from the screw rod (13) penetrates and is rotatably connected to the opposite side wall of the clamp plate (7). The rotating rod (16) is fixedly connected to a second bevel gear (17) at a side position of the rotating rod (16) close to the first bevel gear (15). The second bevel gear (17) is meshingly connected to the three first bevel gears (15).

4. A positioning device for PTFE tube processing according to claim 3, characterized in that: One end of the rotating rod (16) passing through the side wall of the clamp plate (7) is fixedly connected to a knob, and a non-slip pad is provided on the surface of the knob.

5. A positioning device for PTFE tube processing according to claim 1, characterized in that: The outer arc wall of the outer ring (9) inside the fixed plate (2) is provided with external teeth (18); the fixed plate (2) is provided with a connected circular slot near the bottom of the rotating slot (8); a gear (19) is rotatably connected inside the slot; the gear (19) is meshedly connected with the external teeth (18) of the outer ring (9); a servo motor (20) is installed on the outer wall of the fixed plate (2) away from the movable plate (5) and relative to the gear (19); the output end of the servo motor (20) passes through the side wall of the fixed plate (2) and is fixedly connected to the gear (19).

6. A positioning device for PTFE tube processing according to claim 1, characterized in that: The fixed plate (2) and the movable plate (5) are fixedly connected with ball bearings near the inner wall of the rotating groove (8), and the rotating ring of the bearing is fixedly connected to the opposite side wall of the outer ring (9).

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