Machining clamp for steel-plastic composite pipe production
By designing a clamp with a base frame, transmission groove, and gear system, the problem of the inability to adjust the position of existing steel-plastic composite pipe clamps was solved, enabling flexible adjustment and rotation adjustment during the clamping process and improving processing efficiency.
Patent Information
- Application Number
- CN202520719179.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-04-16
AI Technical Summary
The existing steel-plastic composite pipe processing fixtures cannot be adjusted in position during clamping, which leads to inconvenience in operation and affects processing efficiency.
A machining fixture comprising a base frame, transmission groove, clamping frame, electric push rod, and gear system was designed. The electric push rod and gear system enable flexible adjustment and rotation of the clamping, adapting to composite tubes of different sizes.
It enables flexible adjustment and rotation during the clamping process, improving processing efficiency and avoiding the need to adjust the position after releasing the clamp, thus enhancing the convenience and efficiency of processing.
Smart Images

Figure CN223971578U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel-plastic composite pipe processing technology, specifically a processing fixture for steel-plastic composite pipe production. Background Technology
[0002] Steel-plastic composite pipe is a new type of composite pipe that combines the advantages of steel and plastic, and has unique structural characteristics. This type of pipe is based on steel pipe and is formed by combining it with plastic materials through appropriate processes. Typically, the inner wall of steel-plastic composite pipe is made of high-density polyethylene, polyvinyl chloride or other special plastic materials, while the outer layer is made of metal materials such as carbon steel and stainless steel. During the production and processing of steel-plastic composite pipe, it needs to be clamped and fixed by clamps to maintain a stable processing flow.
[0003] China Patent Network (patent publication number CN220719079U) discloses a processing fixture for the production of steel-plastic composite pipes, including a base. The upper end of the base is equipped with a fixture structure for processing the steel-plastic composite pipe during production. The fixture structure includes a mounting block located in the middle of the base. When using this fixture structure, the entire fixture is first positioned and fixed by the base fixed on the worktable. When clamping the steel-plastic composite pipe, the steel-plastic composite pipe is fixed by the flexibly locking upper and lower clamping arms.
[0004] The aforementioned clamp can be used to clamp composite pipes by releasing the fixing of the mounting block and changing the clamping arms of different sizes at any time, thus adapting to pipes of different sizes. However, the position of the pipe cannot be adjusted during the clamping process. The adjustment process can only be completed by adjusting the position of the clamp itself or by re-clamping, which has limited adjustability, is inconvenient to operate, and affects processing efficiency. Therefore, we propose a processing clamp for steel-plastic composite pipe production. Utility Model Content
[0005] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.
[0006] The purpose of this utility model is to provide a processing fixture for the production of steel-plastic composite pipes, so as to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a processing fixture for steel-plastic composite pipe production, comprising a base frame, transmission grooves distributed on both sides of the top surface of the base frame, and a clamping frame provided on the top surface of the transmission grooves, the clamping frame comprising a lower frame, and auxiliary rollers distributed around the inner wall of the lower frame, electric push rods embedded in both sides of the lower frame, a lifting post passing through the top of the electric push rod, an upper frame connected to the top of the lifting post, and drive wheels distributed around the inner wall of the upper frame, grooves formed on the outer wall of the drive wheels, a drive gear connected to one end of the drive wheel, a torque motor connected to the other end of the drive wheel, a connecting gear meshing on one side of the drive gear, a driven gear meshing on the other side of the connecting gear, and a driven wheel connected to one side of the shaft of the driven gear.
[0008] Furthermore, the driven gear and driven wheel are distributed in a ring around the inner wall of the upper frame, and the driven gear meshes with the drive gear through a connecting gear.
[0009] Furthermore, the upper frame forms a lifting structure with the lower frame through lifting piles on both sides and electric push rods, and the upper and lower frames are symmetrically distributed along both ends of the top surface of the base frame.
[0010] Furthermore, the base frame includes a base plate, and the two ends of the base plate are connected to a mounting frame. The two ends of the mounting frame are provided with round holes, and the top surface of the base plate is provided with transmission grooves on both sides.
[0011] Furthermore, the base plate is fixedly connected to the mounting frame on both sides, and the round holes are symmetrically opened along both ends of the mounting frame.
[0012] Furthermore, the transmission groove includes a cavity, and a screw is disposed inside the cavity. A slider is sleeved around the screw, and a lower frame is connected to the top of the slider. One end of the screw is connected to a bearing seat, and the other end of the screw is connected to a dual-shaft output motor.
[0013] Furthermore, the lower frame and slider form a transmission structure through the screw and the slot cavity, and the screw and slider are symmetrically distributed along the two ends of the dual-shaft motor.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This processing fixture is connected to the lower frame via lifting posts on both sides of the upper frame. It can be driven by an electric push rod at the bottom of the lower frame, causing the upper frame to descend and clamp the inserted pipe. During the clamping process, the rubber material on the outer wall of the driven wheel and auxiliary roller keeps the clamping fit, providing a certain degree of cushioning. The torque motor of the upper frame drives the drive wheel and drive gear to rotate, which meshes with the connecting gear, allowing multiple sets of driven wheels to rotate synchronously. This enables rotational adjustment of the clamped composite pipe while it is in the clamping state, providing high adjustment flexibility. During processing, there is no need to loosen the clamp and then adjust the position, improving processing efficiency.
[0016] This processing fixture uses a base plate as the base structure of the overall fixture. The clamping frame connected to the transmission groove at the top keeps the mounting structure stable, thereby keeping the composite tube clamped stably. The mounting frames on both sides of the base plate are connected and assist in the placement stability. It can also be placed with fasteners through round holes to improve placement stability.
[0017] This machining fixture provides transmission space for the screw through the slots on both sides of the top surface of the base plate. It can be driven by a dual-axis motor to drive the screws at both ends synchronously, so that the connected slider and clamping frame can clamp the two ends of the composite tube. At the same time, the positioning can be adjusted according to the composite tube of different lengths. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the base frame of this utility model;
[0019] Figure 2 This is a three-dimensional structural diagram of the transmission groove of this utility model;
[0020] Figure 3 This is a front view of the internal structure of the clamping frame of this utility model;
[0021] Figure 4 This is a three-dimensional structural diagram of the drive wheel in the clamping frame of this utility model.
[0022] In the diagram: 1. Base frame; 101. Base plate; 102. Mounting frame; 103. Circular hole; 2. Transmission groove; 201. Groove cavity; 202. Screw; 203. Slider; 204. Bearing seat; 205. Dual-shaft output motor; 3. Clamping frame; 301. Lower frame; 302. Auxiliary roller; 303. Electric push rod; 304. Lifting post; 305. Upper frame; 306. Drive wheel; 307. Cable groove; 308. Drive gear; 309. Torque motor; 310. Connecting gear; 311. Driven gear; 312. Driven wheel. Detailed Implementation
[0023] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.
[0024] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.
[0025] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.
[0026] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".
[0027] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.
[0028] This utility model provides, for example Figure 1-4 The processing fixture for producing steel-plastic composite pipe shown includes a base frame 1, with transmission grooves 2 distributed on both sides of the top surface of the base frame 1, and a clamping frame 3 provided on the top surface of the transmission grooves 2. The base frame 1 includes a base plate 101, and a mounting frame 102 is connected to both ends of the base plate 101. The mounting frame 102 has round holes 103 at both ends, and the transmission grooves 2 are provided on both sides of the top surface of the base plate 101.
[0029] To maintain the stability of the bottom structure during use, such as Figure 1 As shown, this processing fixture uses the base plate 101 as the base structure of the overall fixture, and the clamping frame 3 connected to the transmission groove 2 at the top keeps the mounting structure stable, thereby keeping the composite tube clamped stably. The mounting frames 102 on both sides of the base plate 101 are connected and assist in the stable placement. It can also be placed with fasteners through the round hole 103 to improve the stability of the placement.
[0030] like Figure 2 As shown, the transmission groove 2 includes a groove cavity 201, and a screw 202 is provided inside the groove cavity 201. A slider 203 is sleeved around the screw 202. A lower frame 301 is connected to the top of the slider 203. A bearing seat 204 is connected to one end of the screw 202, and a dual-shaft output motor 205 is connected to the other end of the screw 202.
[0031] To provide lateral adjustment functionality in the clamping state, such as Figure 2 As shown, this processing fixture can provide transmission space for the screw 202 through the slots 201 opened on both sides of the top surface of the base plate 101. It can be driven by the dual-axis output motor 205, which drives the screws 202 at both ends synchronously, so that the connected slider 203 and the clamping frame 3 clamp the two ends of the composite tube. At the same time, the positioning can be adjusted according to the composite tube of different lengths.
[0032] like Figure 3-4 As shown, the clamping frame 3 includes a lower frame 301, and auxiliary rollers 302 are distributed around the inner wall of the lower frame 301. Electric push rods 303 are embedded in both sides of the lower frame 301. A lifting post 304 is provided at the top of the electric push rod 303. The top of the lifting post 304 is connected to the upper frame 305. Drive wheels 306 are distributed around the inner wall of the upper frame 305. The outer wall of the drive wheels 306 is provided with grooves 307. One end of the drive wheel 306 is connected to a drive gear 308. The other end of the drive wheel 306 is connected to a torque motor 309. A connecting gear 310 meshes with one side of the drive gear 308. A driven gear 311 meshes with the other side of the connecting gear 310. A driven wheel 312 is connected to one side of the shaft of the driven gear 311.
[0033] Finally, to provide adjustability in the clamped state of the pipe, such as Figure 3-4 As shown, this processing fixture can be connected to the lower frame 301 via the lifting posts 304 on both sides of the upper frame 305, and can be driven by the electric push rod 303 at the bottom of the lower frame 301, causing the upper frame 305 to descend and clamp the inserted pipe. During the clamping process, the rubber material on the outer wall of the driven wheel 312 and the auxiliary roller 302 can keep the clamping fit, providing a certain degree of cushioning. The torque motor 309 of the upper frame 305 can drive the drive wheel 306 and the drive gear 308 to rotate, which are engaged with the connecting gear 310, so that multiple sets of driven wheels 312 rotate synchronously. This allows for rotational adjustment of the clamped composite pipe while it is in the clamping state, providing high adjustment flexibility. During the processing, there is no need to loosen the clamp and then adjust the position, improving processing efficiency.
[0034] In summary, when using this machining fixture, the fixture structure can first be placed in the required working environment via the base plate 101, or combined with machine tools or other equipment. Installation and fixation are completed through the round holes 103 and fasteners. After installation, the length of the composite pipe to be processed can be adjusted by driving the dual-axis output motor 205 to rotate, causing the screws 202 at both ends of the dual-axis output motor 205 to rotate synchronously. This drives the connected slider 203 to adjust along the groove 201, simultaneously adjusting the distance between the two sets of clamping frames 3 to fit the processed pipe. Then, the composite pipe is placed into the lower frame 301 and passed through. Driven by the electric push rods 303 connecting the lifting posts 304 on both sides of the upper frame 305 to the lower frame 301, the upper frame 305 descends and approaches the lower frame 301 to clamp the inserted pipe. During the clamping process, the torque motor 309 drives the drive wheel 306 and drive gear 308 to rotate synchronously. The rotating drive gear 308 drives the meshing connecting gear 310 for transmission. Through the cooperation of multiple sets of connecting gears 310 and driven gears 311, the driven wheels 312 arranged around the inner wall of the upper frame 305 rotate synchronously, so that the clamped pipe is affected by friction to rotate and adjust, thus completing the adjustment process.
[0035] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.
Claims
1. A processing clamp for steel-plastic composite pipe production, comprising a base frame (1), characterized in that: The top surface of the base frame (1) is distributed with transmission grooves (2), and the top surface of the transmission grooves (2) is provided with clamping frames (3), the clamping frame (3) comprises a lower frame (301), and the inner wall of the lower frame (301) is distributed with auxiliary rollers (302), the two sides of the lower frame (301) are embedded with electric push rods (303), the top end of the electric push rod (303) is provided with a lifting pile (304), the top end of the lifting pile (304) is connected with an upper frame (305), and the inner wall of the upper frame (305) is distributed with driving wheels (306), the outer wall of the driving wheel (306) is provided with a wire groove (307), one end of the driving wheel (306) is connected with a driving gear (308), the other end of the driving wheel (306) is connected with a torsion motor (309), one side of the driving gear (308) is engaged with a connecting gear (310), the other side of the connecting gear (310) is engaged with a driven gear (311), and the shaft center of the driven gear (311) is connected with a driven wheel (312).
2. The machining clamp for producing a steel-plastic composite pipe according to claim 1, characterized in that: The driven gear (311) and the driven wheel (312) are annularly distributed along the inner wall of the upper frame (305), and the driven gear (311) is engaged with the driving gear (308) through the connecting gear (310).
3. The machining clamp for steel-plastic composite pipe production according to claim 1, characterized in that: The upper frame (305) and the lower frame (301) are symmetrically distributed along the top surface of the base frame (1) through the lifting piles (304) and the electric push rods (303).
4. The machining clamp for steel-plastic composite pipe production of claim 1, characterized in that: The base frame (1) comprises a base disc (101), and the two ends of the base disc (101) are connected with a placing frame (102), the two ends of the placing frame (102) are provided with a circular hole (103), and the top surface of the base disc (101) is provided with transmission grooves (2) on both sides.
5. The machining clamp for steel-plastic composite pipe production according to claim 4, characterized in that: The base disc (101) is fixedly connected with the placing frame (102) on both sides, and the circular hole (103) is symmetrically provided along the two ends of the placing frame (102).
6. The machining clamp for a steel-plastic composite pipe production as claimed in claim 1, characterized in that: The transmission groove (2) comprises a groove cavity (201), and the inside of the groove cavity (201) is provided with a screw rod (202), the periphery of the screw rod (202) is sleeved with a sliding block (203), the top end of the sliding block (203) is connected with a lower frame (301), one end of the screw rod (202) is connected with a bearing seat (204), and the other end of the screw rod (202) is connected with a double-shaft motor (205).
7. The machining clamp for a steel-plastic composite pipe production as claimed in claim 6, characterized in that: The lower frame (301) and the sliding block (203) constitute a transmission structure with the groove cavity (201) through the screw rod (202), and the screw rod (202) and the sliding block (203) are symmetrically distributed along the two ends of the double-shaft motor (205).
Citation Information
Patent Citations
Machining clamp for steel-plastic composite pipe production
CN220719079U