A quartz glass tube expansion device

Abstract

The utility model discloses a quartz glass tube expanding device, which relates to the technical field of quartz glass tube expanding, and comprises a bearing platform and a tube expanding head, wherein the tube expanding head is located directly above the bearing platform, one end of the tube expanding head is fixedly connected with a first transmission rod, a positioning bracket is fixedly installed on the top of the bearing platform, and the first transmission rod is slidably installed inside one of the positioning brackets. In the process of tube expanding, the tube expanding head and a protective tube are respectively located on the inner side and the outer side of the quartz tube, the tube expanding head can limit the shape of the inner wall of the quartz tube, and the protective tube can limit the outer wall of the quartz tube through the thickened layer on its inner wall, so that the shape of the quartz tube is completely limited in the process of tube expanding, irregular shapes are avoided at the edge of the quartz tube orifice, and the subsequent normal use of the quartz tube is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of quartz glass tube expansion, in particular to a quartz glass tube expansion device. Background Art

[0002] In laboratories or industrial production, quartz glass tubes often need to be connected or connected to other equipment. However, due to the different diameters of the pipes, direct connection is not possible. Therefore, the quartz glass tubes need to be processed through a tube expansion process to change the diameter of the pipe so that it can be smoothly connected to other components.

[0003] For example, publication number CN210560069U discloses a large-diameter quartz glass tube expansion device, including a base, a roller is fixedly installed on the outer surface of the lower end of the base, a first fixed seat is fixedly installed on the left side of the upper end of the base, and a second fixed seat is fixedly installed on the right side of the upper end of the base, a fixing clamp is movably installed on one side of the inner part of the first fixed seat and the second fixed seat, a motor is fixedly installed on the outer surface of the other side of the first fixed seat and the second fixed seat, and a fixing plate is fixedly installed at the lower end of the first fixed seat and the second fixed seat at a position located inside the base, the number of the fixing plates is two groups, a lead screw is movably installed between the two groups of fixing plates, and a slide is movably installed on the outer surface of the lead screw at a position located inside the base.

[0004] However, in the prior art, when the tube expansion process is performed, the overall diameter of the tube body will be expanded, and the shape of the inner wall can be completely fitted with the tube expansion device, and the overall shape is effectively restricted, but the outer wall lacks a shape restriction device, resulting in different degrees of deformation at the edge of the quartz tube mouth during the tube expansion process, which will subsequently affect the normal use of the quartz tube. Utility Model Content

[0005] The utility model aims to solve the problem in the prior art that the edge of the quartz tube opening is prone to deformation to varying degrees during the tube expansion process, and proposes a quartz glass tube expansion device.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a quartz glass tube expanding device, comprising a bearing platform and an expanding head, the expanding head is located directly above the bearing platform, one end of the expanding head is fixedly connected to a first transmission rod, a positioning bracket is fixedly installed on the top of the bearing platform, the first transmission rod is slidably installed inside one of the positioning brackets, and a second transmission rod is rotatably installed inside the other positioning bracket, one end of the second transmission rod is fixedly connected to a positioning frame, a protective tube is provided on the outer wall of the positioning frame, a protrusion is fixedly installed on the outer wall of the protective tube, one end of the protrusion is fixedly connected to a second electric cylinder, the second electric cylinder is fixedly installed on the top of the positioning bracket, and a thickening layer is fixedly installed on the inner wall of the protective tube.

[0007] Preferably, pulleys are rotatably mounted on both ends of the bearing platform, the other end of the first transmission rod is slidably connected to one pulley, and the other end of the second transmission rod is fixedly connected to another pulley.

[0008] Preferably, a limiting ring is installed on the outer wall of the first transmission rod, and the limiting ring is located on one side of the pulley.

[0009] Preferably, a first electric cylinder is fixedly mounted on the bottom of the bearing platform, and a sliding block is fixedly connected to one end of a piston rod of the first electric cylinder.

[0010] Preferably, both sides of the sliding block are rotatably connected with a connecting block, and the outer wall of the connecting block is slidably connected with a double-headed rotating rod.

[0011] Preferably, a sliding groove is provided at the junction of the double-headed rotating rod and the connecting block, and a clamping block is fixedly installed at the other end of the double-headed rotating rod.

[0012] Preferably, the clamping block is slidably connected between two adjacent limiting rings, and the double-headed rotating rod is rotatably mounted on the outer wall of the positioning bracket.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, a positioning frame is provided to accommodate the quartz tube, and a protective tube for protecting the outer wall of the quartz tube is provided on the periphery of the positioning frame. During the tube expansion process, the tube expansion head and the protective tube are respectively located on the inner and outer sides of the quartz tube. The tube expansion head can limit the shape of the inner wall of the quartz tube, and the protective tube can limit the outer wall of the quartz tube through the thickened layer on its inner wall, thereby completely limiting the shape of the quartz tube during the tube expansion process, avoiding irregular shapes at the edge of the quartz tube orifice, and ensuring that the quartz tube can be used normally later.

[0015] 2. In the utility model, the expansion head is connected to a pulley by a first transmission rod, and the pulley can be used to drive the expansion head to rotate during use. The inner wall of the quartz tube is ensured to be uniformly circular by rotation, and the difficulty of the expansion head entering the quartz tube can be reduced by adding a certain torque. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional structural schematic diagram of a quartz glass tube expansion device is proposed for the utility model;

[0017] Figure 2 The utility model provides a double-headed rotating rod and a slider connection and structural schematic diagram of a quartz glass tube expansion device;

[0018] Figure 3 A top view of a tube expansion head and a positioning frame of a quartz glass tube expansion device is provided for the utility model;

[0019] Figure 4 The utility model provides a schematic diagram of the disassembly of a positioning frame and a protection tube structure of a quartz glass tube expansion device.

[0020] Legend: 1. Carrying platform; 2. Positioning bracket; 3. Pipe expansion head; 4. Pulley; 5. Protective tube; 6. First electric cylinder; 7. Second electric cylinder; 8. Slider; 9. Double-headed rotating rod; 10. Slide; 11. Connecting block; 12. Positioning frame; 13. Limiting ring; 14. Block; 15. Second transmission rod; 16. First transmission rod; 17. Thickening layer; 18. Bump. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Embodiment 1

[0024] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the utility model provides a quartz glass tube expanding device, including a bearing platform 1 and an expanding head 3, the expanding head 3 is located directly above the bearing platform 1, one end of the expanding head 3 is fixedly connected to a first transmission rod 16, a positioning bracket 2 is fixedly installed on the top of the bearing platform 1, the first transmission rod 16 is slidably installed inside one of the positioning brackets 2, and a second transmission rod 15 is rotatably installed inside the other positioning bracket 2, one end of the second transmission rod 15 is fixedly connected to a positioning frame 12, an outer wall of the positioning frame 12 is provided with a protective tube 5, a protrusion 18 is fixedly installed on the outer wall of the protective tube 5, one end of the protrusion 18 is fixedly connected to a second electric cylinder 7, the second electric cylinder 7 is fixedly installed on the top of the positioning bracket 2, and a thickening layer 17 is fixedly installed on the inner wall of the protective tube 5.

[0025] The specific settings and functions of this embodiment are described in detail below. The expansion head 3 is used to expand the diameter of the quartz tube. When the expansion process is performed, one end of the high-temperature quartz tube is inserted into the positioning frame 12, and the end to be processed is aligned with the expansion head 3. Then, the expansion head 3 is pushed into the quartz tube to complete the expansion process. During the expansion process, the position of the protection tube 5 is adjusted by the second electric cylinder 7. The protection tube 5 is covered on the outside of the positioning frame 12 to limit the outer wall of the quartz tube. During the expansion process, the inner wall of the quartz tube fits with the outer wall of the expansion head 3, and the outer wall of the quartz tube fits with the thickened layer 17 on the inner wall of the protection tube 5. Therefore, during the expansion process, the shape of the inner and outer walls of the quartz tube is restricted to avoid irregular shapes at the tube mouth of the quartz tube.

[0026] The second electric cylinder 7 is installed on the top of a positioning bracket 2, and its piston rod is fixedly connected to the protrusion 18 on the outer wall of the protective tube 5, so that the position of the protective tube 5 can be adjusted at any time, and the first transmission rod 16 at one end of the expansion head 3 is rotatably installed inside the other positioning bracket 2, which can ensure that the centers of the expansion head 3, the positioning frame 12 and the protective tube 5 are always on the same straight line.

[0027] Embodiment 2

[0028] like Figure 1 , Figure 2 and Figure 3As shown, pulleys 4 are rotatably installed at both ends of the carrying platform 1, the other end of the first transmission rod 16 is slidably connected to one pulley 4, and the other end of the second transmission rod 15 is fixedly connected to the other pulley 4. A limit ring 13 is installed on the outer wall of the first transmission rod 16, and the limit ring 13 is located on one side of the pulley 4. A first electric cylinder 6 is fixedly installed on the bottom of the carrying platform 1, and a slider 8 is fixedly connected to one end of the piston rod of the first electric cylinder 6. Both sides of the slider 8 are rotatably connected to connecting blocks 11, and a double-headed rotating rod 9 is slidably connected to the outer wall of the connecting block 11. A slide groove 10 is provided at the junction of the double-headed rotating rod 9 and the connecting block 11, and a clamping block 14 is fixedly installed on the other end of the double-headed rotating rod 9. The clamping block 14 is slidably connected between two adjacent limit rings 13, and the double-headed rotating rod 9 is rotatably installed on the outer wall of the positioning bracket 2.

[0029] The effect achieved by the entire embodiment is that the pulley 4 is mainly used to drive the first transmission rod 16 and the second transmission rod 15 to achieve the purpose of driving the expansion head 3 and the positioning frame 12 to rotate, wherein the first transmission rod 16 and the pulley 4 are slidably connected. When expanding the pipe, the first electric cylinder 6 pulls the slider 8 to move along the direction of the bearing platform 1, and pulls the first transmission rod 16 by changing the angle of the double-headed rotating rod 9. In this process, the first transmission rod 16 is still connected to the pulley 4, and can be used later by sleeve-fitting the belt transmission assembly on the pulley 4, and the purpose of driving the expansion head 3 is achieved by driving the pulley 4 to rotate;

[0030] The first transmission rod 16 contacts the clamping block 14 on the inner side of the double-headed rotating rod 9 through two limiting rings 13 on the outer wall, ensuring that the rotation of the double-headed rotating rod 9 can drive the first transmission rod 16, and a sliding groove 10 is provided at the end of the double-headed rotating rod 9 for the connecting block 11 to move.

[0031] The use method and working principle of the device are as follows: insert one end of the high-temperature quartz tube into the positioning frame 12, align the end to be processed with the tube expansion head 3, then the first electric cylinder 6 pulls the slider 8 to move along the direction of the bearing platform 1, and pulls the first transmission rod 16 through the double-headed rotating rod 9 to insert one end of the tube expansion head 3 into the quartz tube to complete the tube expansion process. In this process, the inner wall of the quartz tube fits with the outer wall of the tube expansion head 3, and the outer wall of the quartz tube fits with the thickened layer 17 on the inner wall of the protective tube 5, thereby limiting the shapes of the inner and outer walls of the quartz tube during the tube expansion process;

[0032] Meanwhile, during the process of tube expansion, the first transmission rod 16 is always connected to the pulley 4, and a belt transmission assembly can be sleeved on the pulley 4 for use, so as to drive the tube expansion head 3 and the positioning frame 12 to rotate by driving the pulley 4 to avoid irregular shapes at the tube mouth of the quartz tube;

[0033] The second electric cylinder 7 is installed on the top of a positioning bracket 2, and its piston rod is fixedly connected to the protrusion 18 on the outer wall of the protection tube 5, so that the position of the protection tube 5 can be adjusted at any time.

[0034] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A quartz glass tube expansion device, comprising a bearing platform (1) and a tube expansion head (3), wherein the tube expansion head (3) is located directly above the bearing platform (1), and is characterized in that: One end of the expansion head (3) is fixedly connected to a first transmission rod (16); a positioning bracket (2) is fixedly installed on the top of the support platform (1); the first transmission rod (16) is slidably installed inside one of the positioning brackets (2); a second transmission rod (15) is rotatably installed inside the other positioning bracket (2); one end of the second transmission rod (15) is fixedly connected to a positioning frame (12); a protective tube (5) is provided on the outer wall of the positioning frame (12); a convex block (18) is fixedly installed on the outer wall of the protective tube (5); one end of the convex block (18) is fixedly connected to a second electric cylinder (7); the second electric cylinder (7) is fixedly installed on the top of the positioning bracket (2); and a thickening layer (17) is fixedly installed on the inner wall of the protective tube (5).

2. A quartz glass tube expansion device according to claim 1, characterized in that: Pulleys (4) are rotatably mounted on both ends of the carrying platform (1); the other end of the first transmission rod (16) is slidably connected to one of the pulleys (4); and the other end of the second transmission rod (15) is fixedly connected to the other pulley (4).

3. A quartz glass tube expansion device according to claim 1, characterized in that: A limiting ring (13) is installed on the outer wall of the first transmission rod (16), and the limiting ring (13) is located on one side of the pulley (4).

4. A quartz glass tube expansion device according to claim 1, characterized in that: A first electric cylinder (6) is fixedly mounted on the bottom of the bearing platform (1), and a sliding block (8) is fixedly connected to one end of a piston rod of the first electric cylinder (6).

5. A quartz glass tube expansion device according to claim 4, characterized in that: Both sides of the sliding block (8) are rotatably connected to connecting blocks (11), and a double-headed rotating rod (9) is slidably connected to the outer wall of the connecting block (11).

6. A quartz glass tube expansion device according to claim 5, characterized in that: A sliding groove (10) is provided at the junction of the double-headed rotating rod (9) and the connecting block (11), and a clamping block (14) is fixedly installed at the other end of the double-headed rotating rod (9).

7. A quartz glass tube expansion device according to claim 6, characterized in that: The clamping block (14) is slidably connected between two adjacent limiting rings (13), and the double-headed rotating rod (9) is rotatably mounted on the outer wall of the positioning bracket (2).

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