Clamp for hardware pipe fitting machining

By designing a hardware pipe fitting processing fixture with pre-tightening and adjustment mechanisms, the problem of non-adjustable fixture angle in existing technologies has been solved, enabling efficient processing of hardware pipe fittings and improving connection tightness and processing efficiency.

CN223933566UActive Publication Date: 2026-02-24DONGGUAN HUAYUANSHENG HARDWARE PROD CO LTD
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Patent Information

Application Number
CN202520301979.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-25
Publication Date
2026-02-24
Estimated Expiration
2035-02-25

AI Technical Summary

Technical Problem

Existing hardware pipe fitting clamps cannot adjust the angle as needed, resulting in low processing efficiency and wasted time and effort.

Method used

A hardware pipe fitting processing fixture including a pre-tightening mechanism and an adjustment mechanism was designed. The pre-tightening and angle adjustment of the hardware pipe fitting are realized by a motor-driven bidirectional lead screw and worm gear mechanism. The fixture is equipped with guide holes and guide rods to ensure stable clamping.

Benefits of technology

It improves the tightness of hardware pipe connections, reduces wear and errors, lowers the scrap rate, and increases processing flexibility and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The clamp for hardware pipe fitting machining comprises a device body, a machining table is arranged in the device body, a mounting groove is formed in the upper portion of the machining table, an adjusting mechanism is arranged below the machining table, and a two-way lead screw is arranged in the mounting groove; a first lantern ring and a second lantern ring are in threaded connection with the bidirectional lead screw, one end of the bidirectional lead screw is connected with a first motor, a pre-tightening mechanism is arranged above the first lantern ring and the second lantern ring, a clamp is arranged in the pre-tightening mechanism, a screw hole is formed in the clamp, a threaded rod is in threaded connection with the interior of the screw hole, the rear end of the threaded rod is connected with a pre-tightening ring, and the front end of the threaded rod is connected with a rotary knob. According to the hardware pipe fitting clamping device, the clamped hardware pipe fitting can be rotationally adjusted, the flexibility of the device is improved, the device can conveniently adapt to various machining requirements, errors and the rejection rate of the hardware pipe fitting in the machining process can be reduced, pre-tightening protection can be conducted on the clamped hardware pipe fitting, the connection tightness is improved, and relative movement between the hardware pipe fittings is prevented.
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Description

Technical Field

[0001] This utility model belongs to the field of hardware processing fixture technology, specifically relating to a fixture for processing hardware pipe fittings. Background Technology

[0002] Pipe fittings are hardware products used to connect, support or protect piping systems. Pipe fitting clamps are special tools used to fix, position and clamp pipe fittings for processing, assembly or testing.

[0003] The prior art utility model patent with publication number CN215239473U proposes a new type of clamp for hardware processing, including a worktable, on which a suction cup device is fixedly installed. A mounting frame is fixedly connected to the top of the worktable, and two movable plates are slidably connected to the top of the mounting frame. An arc-shaped clamping plate is rotatably connected to the top of each of the two movable plates. The two arc-shaped clamping plates have teeth arranged at equal intervals on opposite sides. Although this patent technology solves the problems of previous hardware clamps being unable to clamp pipes and being inconvenient to fix;

[0004] However, it is impossible to adjust the angle of the hardware fittings during processing as needed. They need to be disassembled, adjusted, and then clamped again, which is time-consuming and labor-intensive, reducing work efficiency and thus production efficiency. Therefore, we need to upgrade and modify the existing technology. Utility Model Content

[0005] The purpose of this utility model is to provide a fixture for processing hardware pipe fittings to solve the problems mentioned in the background art.

[0006] To solve the above problems, the following technical solutions are provided:

[0007] A fixture for processing metal pipe fittings is designed, comprising a device body containing a processing table. An installation groove is provided above the processing table, and an adjustment mechanism is provided below the processing table. A bidirectional lead screw is provided within the installation groove. A first collar and a second collar are screwed onto the bidirectional lead screw, and one end of the bidirectional lead screw is connected to a motor. A pre-tightening mechanism is provided above the first and second collars. A fixture is provided within the pre-tightening mechanism, and a threaded hole is provided within the fixture. A threaded rod is screwed into the threaded hole, and the rear end of the threaded rod is connected to the pre-tightening ring, while the front end of the threaded rod is connected to a knob.

[0008] Furthermore, the adjusting mechanism includes a connecting plate, a connecting rod is fixedly connected below the connecting plate, a worm gear is connected below the connecting rod, a worm is engaged on one side of the worm gear, one end of the worm is connected to a second motor, and a mounting base is provided below the worm gear, with the worm gear rotatably connected to the mounting base.

[0009] Furthermore, the fixture has a guide hole, a guide rod is slidably installed in the guide hole, one end of the guide rod is connected to a pre-tightening ring, and the front end of the guide rod is connected to a limit plate.

[0010] Furthermore, the pre-tightening rings are symmetrically arranged, and anti-slip pads are fixedly arranged on the inner wall of each pre-tightening ring. Springs are connected to the outer wall of each pre-tightening ring, and multiple sets of springs are arranged. The front end of each spring is welded and fixed to the inner wall of the pre-tightening ring.

[0011] Furthermore, a support frame is connected to the outer wall of the mounting base, a worm gear is installed inside the support frame, and a fixing plate is welded to the outer wall of the support frame. A second motor is fixedly installed on the fixing plate.

[0012] Furthermore, a base is installed below the mounting base, and the base is fixedly connected to the mounting base.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. By setting a pre-tightening mechanism, this utility model can pre-tighten and protect the clamped hardware fittings, which can eliminate the gap between the connection interfaces of the hardware fittings, thereby improving the tightness of the connection, preventing relative movement between the hardware fittings, reducing loosening and wear, and extending the connection life.

[0015] 2. By setting an adjustment mechanism, this utility model can rotate and adjust the clamped hardware fittings, which increases the flexibility of the device, makes it easier for the device to adapt to various processing needs, and helps to reduce the error and scrap rate of hardware fittings during processing.

[0016] Specific embodiments of the present invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the present invention can be employed. It should be understood that the embodiments of the present invention are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present invention include many changes, modifications, and equivalents. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a perspective view of the overall structure of a hardware pipe fitting processing fixture according to the present utility model;

[0019] Figure 2 This is a working diagram of the overall structure of a hardware pipe fitting processing fixture according to the present invention.

[0020] Figure 3 This is an exploded view of the pre-tightening structure of a clamp for processing hardware pipe fittings according to this utility model;

[0021] Figure 4 This is a partially exploded view of the pre-tightening structure of a clamp for processing hardware pipe fittings according to this utility model;

[0022] Figure 5 This is an exploded view of the adjustment structure of a clamp for processing hardware pipe fittings according to the present invention.

[0023] In the diagram: 1. Device body; 2. Machining table; 3. Mounting slot; 4. Two-way lead screw; 5. Motor 1; 6. Collar 1; 7. Collar 2; 8. Pre-tightening mechanism; 81. Fixture; 810. Screw hole; 82. Guide hole; 83. Threaded rod; 84. Knob; 85. Guide rod; 86. Limiting plate; 87. Pre-tightening ring; 88. Spring; 89. Anti-slip pad; 90. Adjusting mechanism; 91. Connecting plate; 92. Connecting rod; 93. Worm gear; 94. Worm; 95. Motor 2; 96. Mounting base; 97. Support frame; 98. Fixing plate; 10. Base. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] like Figure 1 As shown in Figure 5, this embodiment provides a hardware pipe fitting processing fixture, including a device body 1. The device body 1 includes a processing table 2. A mounting groove 3 is provided above the processing table 2, and an adjustment mechanism 9 is provided below the processing table 2. A bidirectional lead screw 4 is provided in the mounting groove 3. A collar 6 and a collar 7 are screwed onto the bidirectional lead screw 4, and one end of the bidirectional lead screw 4 is connected to a motor 5. A pre-tightening mechanism 8 is provided above the collar 6 and the collar 7. A fixture 81 is provided in the pre-tightening mechanism 8. A screw hole 810 is provided in the fixture 81. A threaded rod 83 is screwed into the screw hole 810. The rear end of the threaded rod 83 is connected to a pre-tightening ring 87, and the front end of the threaded rod 83 is connected to a knob 84.

[0026] Preferably, the adjusting mechanism 9 includes a connecting plate 91, a connecting rod 92 is fixedly connected below the connecting plate 91, a worm gear 93 is connected below the connecting rod 92, a worm 94 is meshed on one side of the worm gear 93, one end of the worm 94 is connected to a motor 95, and a mounting base 96 is provided below the worm gear 93, with the worm gear 93 and the mounting base 96 being rotatably connected.

[0027] The worm gear 94 is driven to rotate by motor 2 95, which in turn drives the worm wheel 93 to rotate. When the worm wheel 93 rotates, it drives the connecting plate 91 to rotate, which in turn drives the processing table 2 to rotate. The device can be rotated and adjusted according to processing needs, which increases the practicality and convenience of the device.

[0028] Preferably, the fixture 81 has a guide hole 82, and a guide rod 85 is slidably installed in the guide hole 82. One end of the guide rod 85 is connected to a pre-tightening ring 87, and the front end of the guide rod 85 is connected to a limit plate 86.

[0029] By setting the guide hole 82 and the guide rod 85, the direction of movement of the pre-tightening ring 87 can be guided, so as to avoid the position deviation of the pre-tightening ring 87 during movement. By setting the limit plate 86, the guide rod 85 can be limited, so as to prevent the guide rod 85 from disengaging from the guide hole 82 during movement.

[0030] Preferably, the pretensioning rings 87 are symmetrically arranged, and anti-slip pads 89 are fixedly arranged on the inner wall of each pretensioning ring 87. Springs 88 are connected to the outer wall of the pretensioning ring 87. Multiple sets of springs 88 are arranged, and the front end of the springs 88 is welded and fixed to the inner wall of the pretensioning ring 87.

[0031] By setting the anti-slip pad 89, the anti-slip ability of the pre-tightening ring 87 is increased, preventing the pre-tightening ring 87 from slipping during use. By setting the spring 88, the devices can be connected, increasing the connectivity and closeness between the devices.

[0032] Preferably, a support frame 97 is connected to the outer wall of the mounting base 96, a worm gear 94 is installed inside the support frame 97, and a fixing plate 98 is welded to the outer wall of the support frame 97. A motor 95 is fixedly installed on the fixing plate 98.

[0033] By setting up the support frame 97, the safety of the worm gear 94 during use is ensured; by setting up the fixing plate 98, the safety and stability of the motor 95 during operation are ensured.

[0034] Preferably, a base 10 is installed below the mounting base 96, and the base 10 is fixedly connected to the mounting base 96;

[0035] By setting the base 10, the mounting base 96 can be supported and fixed, ensuring the safety and stability of the device during use.

[0036] The working principle and process of this utility model are as follows: In use, the user places the hardware fitting to be clamped on the processing table 2 and controls motor 5 to run. Motor 5 drives the bidirectional lead screw 4 to rotate. As the bidirectional lead screw 4 rotates, it causes collar 6 and collar 7 to move along it. As collar 6 and collar 7 move, they move the clamp 81 closer to the hardware fitting until the pre-tightening ring 87 clamps it. Then, the user manually rotates knob 84, which causes the threaded rod 83 to rotate within the threaded hole 810. During this rotation, the pre-tightening ring 87 moves closer to the hardware fitting. During this movement, spring 88 is stretched until the anti-slip pad 89 is in close contact with the hardware fitting. At this point, the hardware fitting is clamped, and the operator can then process it. This method provides pre-tightening protection for the clamped hardware fitting. It can eliminate gaps between the interfaces of hardware pipe fittings, thereby improving the tightness of the connection, preventing relative movement between hardware pipe fittings, reducing loosening and wear, and extending the connection life. When the device needs to adjust the angle during processing, it controls the operation of motor 2 95, which drives the worm gear 94 to rotate. When the worm gear 94 rotates, it drives the worm wheel 93 to rotate. When the worm wheel 93 rotates, it drives the connecting rod 92 to rotate. When the connecting rod 92 rotates, it drives the connecting plate 91 connected to it to rotate. When the connecting plate 91 rotates, it drives the processing table 2 and the clamped hardware pipe fitting to rotate until the hardware pipe fitting rotates to the appropriate position. It can rotate and adjust the clamped hardware pipe fitting, increasing the flexibility of the device and making it easy for the device to adapt to various processing needs. It helps to reduce the error and scrap rate of hardware pipe fittings during processing.

[0037] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on its spirit and principles, and these modifications and variations are also within the scope of the present invention.

Claims

1. A fixture for processing metal pipe fittings, characterized in that, The device includes a main body (1), which contains a processing table (2). The processing table (2) has an installation groove (3) above it and an adjustment mechanism (9) below it. The installation groove (3) contains a bidirectional lead screw (4). The bidirectional lead screw (4) is screwed with a collar one (6) and a collar two (7), and one end of the bidirectional lead screw (4) is connected to a motor one (5). The collar one (6) and collar two (7) are provided with a pre-tightening mechanism (8) above them. The pre-tightening mechanism (8) contains a clamp (81), and the clamp (81) contains a screw hole (810). The screw hole (810) contains a threaded rod (83), and the rear end of the threaded rod (83) is connected to a pre-tightening ring (87), and the front end of the threaded rod (83) is connected to a knob (84).

2. A fixture for processing metal pipe fittings according to claim 1, characterized in that, The adjusting mechanism (9) includes a connecting plate (91), a connecting rod (92) is fixedly connected below the connecting plate (91), a worm gear (93) is connected below the connecting rod (92), a worm (94) is meshed on one side of the worm gear (93), one end of the worm (94) is connected to a second motor (95), and a mounting base (96) is provided below the worm gear (93), and the worm gear (93) is rotatably connected to the mounting base (96).

3. A fixture for processing metal pipe fittings according to claim 1, characterized in that, The clamp (81) has a guide hole (82) and a guide rod (85) is slidably installed in the guide hole (82). One end of the guide rod (85) is connected to a pre-tightening ring (87) and the front end of the guide rod (85) is connected to a limit plate (86).

4. A fixture for processing metal pipe fittings according to claim 1, characterized in that, The pre-tightening rings (87) are symmetrically arranged, and anti-slip pads (89) are fixedly arranged on the inner wall of each pre-tightening ring (87). Springs (88) are connected to the outer wall of the pre-tightening ring (87). Multiple sets of springs (88) are arranged, and the front end of each spring (88) is welded and fixed to the inner wall of the pre-tightening ring (87).

5. A fixture for processing metal pipe fittings according to claim 2, characterized in that, A support frame (97) is connected to the outer wall of the mounting base (96). A worm gear (94) is installed inside the support frame (97), and a fixing plate (98) is welded to the outer wall of the support frame (97). A second motor (95) is fixedly installed on the fixing plate (98).

6. A fixture for processing metal pipe fittings according to claim 2, characterized in that, A base (10) is installed below the mounting base (96), and the base (10) is fixedly connected to the mounting base (96).

Citation Information

Patent Citations

  • A new type of clamp for hardware processing

    CN215239473U