Vacuum high-temperature stretching clamp for hollow pipe

Abstract

The utility model discloses a hollow pipe vacuum high-temperature stretching clamp which comprises a sliding rail base and a connecting plate, a rail is fixedly connected to the upper surface of the sliding rail base, a sliding block is connected to the outer surface of the rail in a sliding mode, a shell base is fixedly connected to the upper surface of the sliding block, and a top cover is fixedly connected to the upper surface of the shell base. The outer surface of the worm is in meshed connection with a worm wheel, the inner wall of the worm wheel is in threaded connection with a lead screw, the lower end of the lead screw is fixedly connected with a limiting block, the upper surface of the lead screw is fixedly connected with a lifting plate, the upper surface of the lifting plate is fixedly connected with a storage plate, the upper surface of the storage plate is fixedly connected with a hydraulic cylinder, and the output end of the hydraulic cylinder is fixedly connected with a push rod. A piston rod is fixedly connected to the left side of the sliding plate, a spring is arranged on the outer surface of the piston rod, a telescopic rod is fixedly connected to the upper surface of the sliding plate, and a clamping jaw is fixedly connected to the end, away from the sliding plate, of the telescopic rod. Through the components, the length, the height and the diameter can be easily controlled, and a hollow pipe with weak toughness can be clamped.

Description

Technical Field

[0001] The utility model relates to the technical field of stretching clamps, in particular to a hollow tube vacuum high-temperature stretching clamp. Background Art

[0002] The existing hollow tube vacuum high temperature stretching clamp uses the pressure of the elastic sleeve and the nut to produce deformation to clamp the hollow tube. In the above way, the hollow tube is clamped by the deformation of the jacket, but it cannot prevent the hollow tube from deforming, causing the hollow tube to rupture and affecting its high temperature resistance. China has disclosed a "hollow tube vacuum high temperature stretching clamp", whose application number is: "CN202320458292.8", which adopts the outer end face of the upper elastic sleeve to abut the inner end face of the upper nut, and the upper elastic sleeve is located between the upper jacket and the upper nut. The upper elastic sleeve is deformed due to the pressure of the upper jacket and the upper nut to clamp the hollow tube, but it cannot clamp heavier hollow tubes, nor can it prevent the hollow tube from deforming. Utility Model Content

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide a hollow tube vacuum high-temperature stretching clamp, which can adjust the distance between the sliders to adapt the length according to the model of the hollow tube, and adapt the diameter by adjusting the telescopic rod. The machine is equipped with an adjustable lifting mechanism to adapt the height that the hollow tube can reach, and the constructed buffer mechanism can effectively prevent the hollow tube from being damaged by pressure.

[0004] The utility model also provides the above-mentioned hollow tube vacuum high-temperature stretching fixture, a slide rail base, a connecting plate, the upper surface of the slide rail base is fixedly connected to the track, the outer surface of the track is slidably connected to a sliding block, the upper surface of the sliding block is fixedly connected to a shell base, and the upper surface of the shell base is fixedly connected to a top cover; a worm, the outer surface of the worm is meshedly connected to a worm wheel, the inner wall of the worm wheel is threadedly connected to a screw rod, the lower end of the screw rod is fixedly connected to a limited block, the upper surface of the screw rod is fixedly connected to a lifting plate, the upper surface of the lifting plate is fixedly connected to a storage plate, the upper surface of the storage plate is fixedly connected to a hydraulic cylinder, the output end of the hydraulic cylinder is fixedly connected to a pushing rod, the end of the pushing rod away from the hydraulic cylinder is fixedly connected to the sliding plate, the left side of the sliding plate is fixedly connected to a piston rod, the outer surface of the piston rod is provided with a spring, the upper surface of the sliding plate is fixedly connected to a telescopic rod, and the end of the telescopic rod away from the sliding plate is fixedly connected to a clamping claw. Through the above components, the length, height and diameter can be easily controlled to clamp the hollow pipe, and the high pressure of the hydraulic pump can be effectively buffered.

[0005] According to the hollow tube vacuum high temperature stretching fixture of the utility model, the upper surface of the slider is fixedly connected with a shell, and the limit block is slidably connected inside the shell. The above components can prevent the fixture from rotating during the lifting process.

[0006] According to the hollow tube vacuum high temperature stretching fixture of the utility model, the upper surface of the connecting plate is fixedly connected with a telescopic rod, and the connecting plate is fixedly connected to the right surface of the sliding plate. Through the above components, the telescopic rod and the sliding plate can be connected.

[0007] According to the hollow tube vacuum high temperature stretching fixture described in the utility model, the inner wall of the slider is provided with a ball bearing, and the ball bearing is slidably connected to the outer surface of the track. The above components can reduce the friction between the slider and the track.

[0008] According to the hollow tube vacuum high temperature stretching fixture described in the utility model, the side surface of the push rod is fixedly connected with a circular plate, and the circular plate is fixedly connected to the right surface of the sliding plate. The push rod and the sliding plate can be connected through the above components.

[0009] According to the hollow tube vacuum high temperature stretching fixture described in the utility model, a bearing is arranged inside the shell, and a rotating disk is fixedly connected to the end of the worm away from the worm wheel. Through the above components, the disk can be rotated to adjust the height of the device.

[0010] According to the hollow tube vacuum high temperature stretching fixture described in the utility model, the side surface of the slider is provided with a handle, and the side surface of the slide rail base is fixedly connected with a baffle. Through the above components, the slider can be pushed to adjust the length and prevent the slider from falling off.

[0011] According to the hollow tube vacuum high temperature stretching fixture described in the utility model, the upper surface of the slide rail base is provided with holes, and the upper surface of the storage plate is fixedly connected with a support plate. Through the above device, the slide rail base and the support hollow tube can be fixed.

[0012] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention.

[0013] Beneficial Effects

[0014] 1. Compared with the prior art, the hollow tube vacuum high temperature stretching fixture realizes the manual adjustment of length and height through the movement of the slider on the slide rail, the turntable rotates the worm, the worm engages the worm wheel, the worm wheel and the lead screw are threadedly connected, and is equipped with a spring and a piston, as well as a limit block and a rectangular shell, and can effectively prevent the breakage of the fragile hollow tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0016] Figure 1 This is the overall structure diagram of the hollow tube vacuum high temperature stretching fixture of the utility model;

[0017] Figure 2 The utility model is a hollow tube vacuum high temperature stretching fixture Figure 1 Figure A in

[0018] Figure 3 This is a cross-sectional structural diagram of the hollow tube vacuum high temperature stretching fixture of the utility model;

[0019] Legend:

[0020] 1. Slide rail base; 2. Track; 3. Slider; 4. Shell base; 5. Shell; 6. Limit block; 7. Worm; 8. Worm wheel; 9. Screw; 10. Top cover; 11. Lifting plate; 12. Handle; 13. Turntable; 14. Bearing; 15. Storage plate; 16. Sliding plate; 17. Hydraulic cylinder; 18. Push rod; 19. Connecting plate; 20. Telescopic rod; 21. Clamp; 22. Support plate; 23. Spring; 24. Piston rod; 25. Round plate. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0022] Reference Figure 1-3 The utility model embodiment provides a hollow tube vacuum high-temperature stretching fixture, which includes: a track 2 is fixedly connected to the upper surface of a slide rail base 1, a hole is provided on the upper surface of the slide rail base 1, which can be used to fix the slide rail base 1, a slider 3 is slidably connected to the outer surface of the track 2, a handle 12 is provided on the side surface of the slider 3, a baffle is fixedly connected to the side surface of the slide rail base 1, which can prevent the slider 3 from falling off, a ball is provided on the inner wall of the slider 3, and the ball is slidably connected to the outer surface of the track 2, which can reduce friction, a shell base 4 is fixedly connected to the upper surface of the slider 3, a shell 5 is fixedly connected to the upper surface of the slider 3, a limit block 6 is slidably connected to the inside of the shell 5, which can prevent the rotation of the lifting plate 11, and a top cover 10 is fixedly connected to the upper surface of the shell base 4.

[0023] The worm 7 has a worm wheel 8 meshingly connected to its outer surface, a bearing 14 is provided inside the housing 5, and one end of the worm 7 away from the worm wheel 8 is fixedly connected to a turntable 13, which can reduce the friction between the worm 7 and the housing 5 when the worm 7 rotates. The inner wall of the worm wheel 8 is threadedly connected to a screw rod 9, and the lower end of the screw rod 9 is fixedly connected to a limiting block 6. The upper surface of the screw rod 9 is fixedly connected to a lifting plate 11, which can play a role in adjusting the height of the lifting plate 11. The upper surface of the lifting plate 11 is fixedly connected to a storage plate 15, and the upper surface of the storage plate 15 is fixedly connected to a support plate 22, which can play a role in supporting the hollow tube. The upper surface of the storage plate 15 is fixedly connected to a hydraulic cylinder 17, and the output end of the hydraulic cylinder 17 is fixedly connected to A push rod 18, one end of the push rod 18 away from the hydraulic cylinder 17 is fixedly connected to the sliding plate 16, the left side of the sliding plate 16 is fixedly connected to a piston rod 24, the outer surface of the piston rod 24 is provided with a spring 23, the side surface of the push rod 18 is fixedly connected to a circular plate 25, the circular plate 25 is fixedly connected to the right surface of the sliding plate 16, and can connect the push rod 18 and the sliding plate 16, the upper surface of the connecting plate 19 is fixedly connected to a telescopic rod 20, the connecting plate 19 is fixedly connected to the right surface of the sliding plate 16, and can connect the telescopic rod 20 and the sliding plate 16, the upper surface of the sliding plate 16 is fixedly connected to the telescopic rod 20, and the end of the telescopic rod 20 away from the sliding plate 16 is fixedly connected to a clamping claw 21.

[0024] Working principle: During use, according to the length of the hollow tube, the two sliders 3 are moved by pushing the handle to control the length of both ends, and then the hollow tube is moved to the support plate 22. The telescopic rod 20 is used to control the length of the clamping jaws 21 so that the clamping jaws 21 fit the hollow tube. The hydraulic cylinder 17 is operated, and the spring 23 and piston rod 24 are equipped to effectively reduce the pressure of the hydraulic cylinder 17 and tighten the hollow tube. Then, the turntable 13 is rotated to rotate the screw rod 9 and change the height of the lifting plate 11 to meet the working requirements.

[0025] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A hollow tube vacuum high temperature stretching fixture, characterized in that: include: A slide rail base (1) and a connecting plate (19), wherein the upper surface of the slide rail base (1) is fixedly connected to a track (2). The outer surface of the track (2) is slidably connected to a slider (3), the upper surface of the slider (3) is fixedly connected to a housing base (4), and the upper surface of the housing base (4) is fixedly connected to a top cover (10); A worm (7) is provided, wherein the outer surface of the worm (7) is meshingly connected to a worm wheel (8), the inner wall of the worm wheel (8) is threadedly connected to a screw rod (9), the lower end of the screw rod (9) is fixedly connected to a limit block (6), the upper surface of the screw rod (9) is fixedly connected to a lifting plate (11), the upper surface of the lifting plate (11) is fixedly connected to a storage plate (15), the upper surface of the storage plate (15) is fixedly connected to a hydraulic cylinder (17), and the hydraulic cylinder (17) is configured to output a hydraulic pressure. The output end is fixedly connected to a push rod (18), the end of the push rod (18) away from the hydraulic cylinder (17) is fixedly connected to a sliding plate (16), the left side of the sliding plate (16) is fixedly connected to a piston rod (24), the outer surface of the piston rod (24) is provided with a spring (23), the upper surface of the sliding plate (16) is fixedly connected to a telescopic rod (20), and the end of the telescopic rod (20) away from the sliding plate (16) is fixedly connected to a clamping claw (21).

2. A hollow tube vacuum high temperature stretching fixture according to claim 1, characterized in that: The upper surface of the sliding block (3) is fixedly connected to a housing (5), and the limiting block (6) is slidably connected to the inside of the housing (5).

3. The hollow tube vacuum high temperature stretching fixture according to claim 1, characterized in that: A telescopic rod (20) is fixedly connected to the upper surface of the connecting plate (19), and the connecting plate (19) is fixedly connected to the right surface of the sliding plate (16).

4. The hollow tube vacuum high temperature stretching fixture according to claim 1, characterized in that: The inner wall of the slider (3) is provided with a ball bearing, and the ball bearing is slidably connected to the outer surface of the track (2).

5. The hollow tube vacuum high temperature stretching fixture according to claim 1, characterized in that: A circular plate (25) is fixedly connected to the side surface of the push rod (18), and the circular plate (25) is fixedly connected to the right surface of the sliding plate (16).

6. The hollow tube vacuum high temperature stretching fixture according to claim 1, characterized in that: A bearing (14) is arranged inside the housing (5), and one end of the worm (7) away from the worm wheel (8) is fixedly connected to a rotating disk (13).

7. The hollow tube vacuum high temperature stretching fixture according to claim 1, characterized in that: A handle (12) is provided on the side surface of the sliding block (3), and a baffle is fixedly connected to the side surface of the sliding rail base (1).

8. The hollow tube vacuum high temperature stretching fixture according to claim 1, characterized in that: The upper surface of the slide rail base (1) is provided with a hole, and the upper surface of the storage plate (15) is fixedly connected to a support plate (22).

Images