Clamping device capable of cutting according to sizes of various shaft pipe fittings

By designing an automated pneumatic and hydraulic clamping device, the problem of unstable clamping during pipe cutting was solved, enabling single-person operation and high-quality cutting, and reducing safety risks.

CN223946841UActive Publication Date: 2026-02-27SHANGHAI ZHUYU MATERIAL TECH CO
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Patent Information

Application Number
CN202520133824.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2026-02-27
Estimated Expiration
2035-01-20

AI Technical Summary

Technical Problem

During pipe cutting, round pipes are prone to rolling, which leads to unstable clamping. This requires multiple people to operate and poses safety hazards. In particular, brittle materials are prone to breakage during clamping, and flying debris can endanger workers.

Method used

A clamping device comprising a support frame, a pneumatic cylinder, a fixing frame, and an arc-shaped clamping plate was designed. The device utilizes a pneumatic cylinder and a hydraulic system to achieve automated pre-fixation and clamping of pipe fittings. The arc-shaped support plate can be adjusted to accommodate different inner diameters, avoiding manual support and reducing breakage and shaking.

Benefits of technology

It enables automated clamping for single-person operation, reducing breakage and shaking of pipes during the cutting process, lowering safety hazards, and improving cutting quality and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a clamping device capable of cutting according to the size of various shaft pipe fittings, which relates to the technical field of clamping and comprises a support frame, a pneumatic cylinder I is fixedly mounted on one side of the support frame, one end of the pneumatic cylinder I is fixedly connected with a fixing frame I, one side of the fixing frame I is fixedly connected with a liquid storage tank, and the other side of the fixing frame I is fixedly connected with a hydraulic cylinder. A piston shaft is arranged in the liquid storage tank, a second pneumatic cylinder is arranged between the piston shaft and the first fixing frame, the outer side of the liquid storage tank communicates with a plurality of telescopic supporting assemblies, and a plurality of annularly-distributed arc-shaped supporting plates support the interior of a to-be-machined pipe fitting, so that pre-fixing work of the to-be-machined pipe fitting is completed. A worker can control the double-shaft hydraulic cylinder away from the to-be-machined pipe fitting, the situation that the worker supports the to-be-machined pipe fitting in the clamping and fixing process of the to-be-machined pipe fitting is changed, and the situation that the worker is hurt due to the fact that the to-be-machined pipe fitting is broken, shaken and deformed due to stress is avoided; and potential safety hazards of cutting and processing the to-be-processed pipe fitting are reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to clamping technical field, concretely is the clamping device of cutting according to multiple shaft class pipe fitting size. BACKGROUND

[0002] In the production process of pipe fitting product, often cutting processing is carried out to pipe fitting, and the product needs to be clamped by using a clamp during processing to avoid displacement of the product during processing, which may cause damage to the product.

[0003] However, during the clamping of the pipe fitting, the circular pipe fitting is prone to rolling, which requires an operator to hold the pipe fitting before clamping and fixing it, and generally two operators are required to cooperate. In addition, when brittle materials are clamped and fixed, they may break under stress, and the flying debris may injure the operators, posing a certain safety hazard. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a clamping device that can cut according to the size of various shaft class pipe fittings to solve the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a clamping device that can cut according to the size of various shaft class pipe fittings, comprising a support frame, a pneumatic cylinder one is fixedly installed on one side of the support frame, a fixing frame one is fixedly connected to one end of the pneumatic cylinder one, a liquid storage tank is fixedly connected to one side of the fixing frame one, a piston shaft is arranged inside the liquid storage tank, a pneumatic cylinder two is arranged between the piston shaft and the fixing frame one, and a plurality of telescopic support assemblies are communicated outside the liquid storage tank.

[0006] Preferably, a double-shaft hydraulic cylinder is fixedly connected to the side of the support frame away from the liquid storage tank, two mounting bent rods are fixedly connected to the two piston ends of the double-shaft hydraulic cylinder, and arc-shaped clamping plates are fixedly connected to one end of the two mounting bent rods.

[0007] Preferably, two guide grooves are formed in one side of the support frame, and the mounting bent rods penetrate through the adjacent guide grooves.

[0008] Preferably, a mounting groove two and a plurality of mounting grooves one are formed in one side of the support frame, the pneumatic cylinder one is inserted into the mounting groove two and fixedly connected with the support frame, a telescopic rod is inserted into the mounting groove one and fixedly connected with the support frame, and one end of the telescopic rod is fixedly connected with the fixing frame one.

[0009] Preferably, one end of the pneumatic cylinder two is fixedly connected with the fixing frame one, a fixing rod is fixedly connected to the other end of the pneumatic cylinder two, the fixing rod extends into the liquid storage tank after penetrating through one side of the liquid storage tank, one end of the fixing rod is fixedly connected with the piston shaft, and two fixing frames two are fixedly connected between the outer side of the pneumatic cylinder two and the liquid storage tank.

[0010] Preferably, the telescopic support assembly comprises arc-shaped support plates, and hydraulic telescopic rods and four spring telescopic rods are fixedly connected between the arc-shaped support plates and the outer wall of the liquid storage tank.

[0011] Preferably, the inlet of the hydraulic telescopic rod is fixedly connected with a flow guide pipe, one end of the flow guide pipe extends to the inside of the liquid storage tank away from the piston shaft and is fixedly connected with the liquid storage tank.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1. When the one end of the pipe to be machined abuts against the support frame, the operation of the pipe to be machined is stopped, at this time, the plurality of arc-shaped support plates distributed in a ring shape support the inside of the pipe to be machined, the pre-fixing work of the pipe to be machined is completed, the staff can control the double-shaft hydraulic cylinder away from the pipe to be machined, the double-shaft hydraulic cylinder is controlled to work and shrink for a period of time, the two arc-shaped clamping plates clamp and fix the pipe to be machined, the situation that the staff supports the pipe to be machined in the clamping and fixing process of the pipe to be machined is changed, the damage to the staff caused by the breakage, shaking and deformation of the pipe to be machined due to stress is avoided, and the safety hidden danger of the pipe to be machined in cutting and machining is reduced.

[0014] 2. The application controls the work of the pneumatic cylinder two, the piston shaft moves in the inside of the liquid storage tank, the hydraulic pressure in the inside of the liquid storage tank increases, the liquid medium in the inside of the liquid storage tank enters the inside of the hydraulic telescopic rod through the flow guide pipe, the hydraulic pressure in the inside of the hydraulic telescopic rod rises, the hydraulic telescopic rod pushes the arc-shaped support plate away from the liquid storage tank, at this time, the plurality of arc-shaped support plates synchronously move away from the liquid storage tank, the diameter of the circular support piece formed by the plurality of arc-shaped support plates expands, and the support piece formed by the plurality of arc-shaped support plates can support the pipe to be machined with a larger inner diameter.

[0015] 3. The application works, the fixed frame one moves the one end fixedly connected liquid storage tank to the inside of the pipe to be machined, the plurality of arc-shaped support plates stay near the cutting position of the pipe to be machined away from the support frame one side, in the subsequent cutting and machining process of the pipe to be machined, the plurality of arc-shaped support plates support the inner wall of the pipe to be machined, the possibility that the hollow pipe to be machined is deformed in a large area near the cutting position after being subjected to the cutting force is reduced, and the quality of the pipe to be machined in cutting and machining is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the utility model;

[0017] Figure 2 It is a partial structural schematic view of the support frame of the utility model;

[0018] Figure 3 It is a structural schematic view of the liquid storage tank of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the guide tube of this utility model.

[0020] The following are labeled in the diagram: 1. Support frame; 2. Dual-axis hydraulic cylinder; 3. Mounting bend rod; 4. Arc-shaped clamping plate; 5. Guide groove; 6. Pneumatic cylinder one; 7. Telescopic rod; 8. Fixing frame one; 9. Pneumatic cylinder two; 10. Liquid storage tank; 11. Piston shaft; 12. Fixing rod; 13. Fixing frame two; 14. Spring telescopic rod; 15. Arc-shaped support plate; 16. Hydraulic telescopic rod; 17. Guide pipe; 18. Mounting groove one; 19. Mounting groove two. 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. 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.

[0022] Example: Figures 1-4 As shown, this utility model provides a technical solution for a clamping device that can be cut according to various shaft pipe sizes. It includes a support frame 1, a pneumatic cylinder 6 fixedly installed on one side of the support frame 1, a fixed frame 8 fixedly connected to one end of the pneumatic cylinder 6, a liquid storage tank 10 fixedly connected to one side of the fixed frame 8, a piston shaft 11 provided inside the liquid storage tank 10, a pneumatic cylinder 9 provided between the piston shaft 11 and the fixed frame 8, and multiple telescopic support components connected to the outside of the liquid storage tank 10.

[0023] Specifically, a dual-axis hydraulic cylinder 2 is fixedly connected to the side of the support frame 1 away from the liquid storage tank 10. Both piston ends of the dual-axis hydraulic cylinder 2 are fixedly connected to mounting rods 3. When the dual-axis hydraulic cylinder 2 extends, it pushes the two mounting rods 3 away from each other, and the two arc-shaped clamping plates 4 fixedly connected to one end of the two mounting rods 3 move away from each other. When the dual-axis hydraulic cylinder 2 retracts, it drives the two arc-shaped clamping plates 4 closer together through the two mounting rods 3. By controlling the working mode of the dual-axis hydraulic cylinder 2 fixedly installed on one side of the support frame 1 on the ground or cutting equipment, the distance between the two arc-shaped clamping plates 4 can be controlled, thus clamping and fixing pipe fittings of different outer diameters to be processed.

[0024] In the embodiment one, the multiple telescopic support assemblies are equidistantly distributed outside the liquid storage tank 10, and the arc-shaped support plates 15 in the telescopic support assemblies are arranged as outward convex arcs. The multiple fixed arc-shaped support plates 15 are distributed on a circular track, and the pipe to be machined can be pushed to the outside of the support member formed by the multiple arc-shaped support plates 15 and then pushed after being set on the multiple arc-shaped support plates 15. When one end of the pipe to be machined abuts against the support frame 1, the operation of the pipe to be machined is stopped. At this time, the multiple arc-shaped support plates 15 distributed in a ring shape support the inside of the pipe to be machined, and the pre-fixing work of the pipe to be machined is completed. The worker can move away from the pipe to be machined to control the double-shaft hydraulic cylinder 2, control the double-shaft hydraulic cylinder 2 to work and contract for a period of time, and make the two arc-shaped clamping plates 4 clamp and fix the pipe to be machined. In this way, the worker can change the situation of supporting the pipe to be machined during the clamping and fixing process of the pipe to be machined, avoid the pipe to be machined from being broken, shaken or deformed due to stress to cause harm to the worker, and reduce the safety hidden danger of the pipe to be machined during cutting and machining.

[0025] When the double-shaft hydraulic cylinder 2 works to make the two arc-shaped clamping plates 4 clamp and fix the pipe to be machined, the gas cylinder one 6 inserted in the installation groove two 19 formed in the support frame 1 is controlled to work. The gas cylinder one 6 fixedly connected with the support frame 1 drives the fixed frame one 8 fixedly connected with the piston end to move. The moving fixed frame one 8 drives the liquid storage tank 10 fixedly connected with one end of the fixed frame one 8 to move towards the inside of the pipe to be machined. When the multiple arc-shaped support plates 15 move away from one side of the support frame 1 to the vicinity of the cutting position of the pipe to be machined, the arc-shaped support plates 15 are controlled to stop working. The multiple telescopic rods 7 inserted in the multiple installation grooves one 18 formed in the support frame 1 are fixedly connected with the support frame 1 and can be telescopically extended. One end of the telescopic rod 7 fixedly connected with the fixed frame one 8. After the fixed frame one 8 moves, the liquid storage tank 10 is stretched. The multiple telescopic rods 7 disperse the force applied to the gas cylinder one 6 by the fixed frame one 8 and the liquid storage tank 10, and protect the gas cylinder one 6. The multiple arc-shaped support plates 15 move away from one side of the support frame 1 and stay in the vicinity of the cutting position of the pipe to be machined. In the subsequent cutting and machining process of the pipe to be machined, the multiple arc-shaped support plates 15 support the inner wall of the pipe to be machined, reduce the possibility of large-area deformation of the cutting position of the hollow pipe to be machined after the pipe to be machined is subjected to the cutting force, and ensure the quality of the cutting and machining of the pipe to be machined.

[0026] In the embodiment two, the gas cylinder two 9 is fixedly connected with one side of the fixed frame one 8. Two fixed frames two 13 are fixedly connected between the outside of the gas cylinder two 9 and the liquid storage tank 10. Under the action of the fixed frames two 13, the gas cylinder two 9 moves synchronously with the fixed frame one 8 and the liquid storage tank 10. The fixed rod 12 is fixedly connected with one end of the gas cylinder two 9 away from the fixed frame one 8. One end of the fixed rod 12 extends into the inside of the liquid storage tank 10 after penetrating through one side of the liquid storage tank 10. The outer diameter of the fixed rod 12 is greater than the outer diameter of the piston end of the gas cylinder two 9, and one end of the fixed rod 12 is fixedly connected with the piston shaft 11.

[0027] Therefore, after the operation of the air cylinder 2, the air cylinder 2 drives the piston shaft 1 to move through the fixed rod 12, and the piston shaft 1 moves in the liquid tank 10, so that the liquid pressure in the liquid tank 10 increases.

[0028] In addition, the arc-shaped support plate 15 is fixedly connected with the hydraulic telescopic rod 16 and the four spring telescopic rods 14 between the arc-shaped support plate 15 and the outer wall of the liquid tank 10, one end of the oil inlet of the hydraulic telescopic rod 16 is extended into the liquid tank 10 and is fixedly connected with the liquid tank 10, and the other end of the guide pipe 17 is extended into the liquid tank 10 and is fixedly connected with the liquid tank 10, so that the liquid medium in the liquid tank 10 enters the hydraulic telescopic rod 16 through the guide pipe 17 when the liquid pressure in the liquid tank 10 increases, the liquid pressure in the hydraulic telescopic rod 16 increases, and the hydraulic telescopic rod 16 drives the arc-shaped support plate 15 to move away from the liquid tank 10, so that the multiple arc-shaped support plates 15 move away from the liquid tank 10 at the same time, the diameter of the circular support formed by the multiple arc-shaped support plates 15 increases, and the support formed by the multiple arc-shaped support plates 15 can support a pipe with a larger inner diameter.

[0029] Similarly, after the operation of the air cylinder 2, the air cylinder 2 drives the piston shaft 1 to move through the fixed rod 12, and the piston shaft 1 moves in the liquid tank 10, so that the liquid pressure in the liquid tank 10 decreases, the multiple spring telescopic rods 14 move towards the liquid tank 10, and the diameter of the circular support formed by the multiple arc-shaped support plates 15 decreases.

[0030] In addition, two guide grooves 5 are arranged on one side of the support frame 1, and the installation bending rod 3 penetrates through the adjacent guide grooves 5, so that the movement of the installation bending rod 3 is guided and limited, and the stability of the up-down movement of the arc-shaped clamping plate 4 is ensured.

[0031] It is apparent for those skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but rather that the present application can be implemented in other embodiments without departing from the spirit or essential characteristics of the present application. Thus, the embodiments should be considered in a descriptive sense only and not for purposes of limitation. The scope of the present application is therefore defined by the appended claims rather than the foregoing description, and it is intended that all changes and modifications that come within the meaning of the claims be embraced thereby. No claim element is to be construed as limiting the present application to the precise embodiments disclosed herein and no element is to be necessarily excluded.

Claims

1. A clamping device that can cut according to the size of various shaft type pipe fittings, comprising a support frame (1), characterized in that: One side of the support frame (1) is fixedly installed with a pneumatic cylinder (6), one end of the pneumatic cylinder (6) is fixedly connected with a fixed frame (8), one side of the fixed frame (8) is fixedly connected with a liquid storage tank (10), the inside of the liquid storage tank (10) is provided with a piston shaft (11), the pneumatic cylinder (6) is provided between the piston shaft (11) and the fixed frame (8), and the outside of the liquid storage tank (10) is communicated with a plurality of telescopic support assemblies. The telescopic support assembly comprises an arc-shaped support plate (15), the arc-shaped support plate (15) is fixedly connected with a hydraulic telescopic rod (16) and four spring telescopic rods (14) between the outer wall of the liquid storage tank (10), the oil inlet of the hydraulic telescopic rod (16) is fixedly connected with a flow guide pipe (17), one end of the flow guide pipe (17) extends into the inside of the liquid storage tank (10) away from the piston shaft (11) and is fixedly connected with the liquid storage tank (10).

2. The holding device according to claim 1, wherein: The side of the support frame (1) away from the liquid storage tank (10) is fixedly connected with a double-shaft hydraulic cylinder (2), both piston ends of the double-shaft hydraulic cylinder (2) are fixedly connected with mounting bent rods (3), and one end of each of the two mounting bent rods (3) is fixedly connected with an arc-shaped clamping plate (4).

3. The holding device according to claim 2, wherein: The side of the support frame (1) is provided with two guide grooves (5), and the mounting bent rods (3) penetrate through adjacent guide grooves (5).

4. The holding device according to claim 1, wherein: The side of the support frame (1) is provided with a mounting groove two (19) and a plurality of mounting grooves one (18), the pneumatic cylinder (6) is inserted into the mounting groove two (19) and is fixedly connected with the support frame (1), the mounting groove one (18) is provided with a telescopic rod (7) inserted therein, the telescopic rod (7) is fixedly connected with the support frame (1), and one end of the telescopic rod (7) is fixedly connected with the fixed frame (8).

5. The holding device according to claim 1, wherein: One end of the pneumatic cylinder (9) is fixedly connected with the fixed frame (8), the other end of the pneumatic cylinder (9) is fixedly connected with a fixed rod (12), one end of the fixed rod (12) penetrates through one side of the liquid storage tank (10) and extends into the inside of the liquid storage tank (10), one end of the fixed rod (12) is fixedly connected with the piston shaft (11), and the outside of the pneumatic cylinder (9) is fixedly connected with two fixed frames (13) between the liquid storage tank (10).