Eccentric clamp for turning U-shaped pipe clamp
Through the design of the eccentric fixture, the threads are bent first and then processed, which solves the problem of thread damage during the processing of the existing U-shaped tube clamp, and achieves higher machining accuracy and connection performance.
Patent Information
- Application Number
- CN202422410067.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-10-08
AI Technical Summary
The existing U-shaped tube clamps are prone to cause thread damage during the bending process, affecting the connection performance and dimensional accuracy.
Eccentric fixtures are used to bending first and then process the threads. The upper and lower pressure plates are used to provide stable clamping to prevent the pipe clamp from moving or vibrating during processing and ensure accurate position.
Improve machining accuracy, eliminate thread damage, and ensure thread connection performance and dimensional accuracy.
Smart Images
Figure CN223210938U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of turning U-shaped pipe clamps, in particular to an eccentric clamp for turning U-shaped pipe clamps. Background Art
[0002] U-shaped pipe clamps are a common pipe fixing device used in numerous industries, including machinery, chemicals, petroleum, and electric power. Most existing U-shaped pipe clamps are first threaded at both ends before being bent. During the bending process, material deformation and changes in stress distribution can cause damage to the pre-processed threads, such as scratching, squeezing, or stretching. This can damage the thread profile, alter the pitch, or reduce surface roughness, thereby affecting the connection performance. The bending operation can also cause slight changes in the length and diameter of the bar stock, affecting the relative position and dimensional accuracy of the threaded sections. Utility Model Content
[0003] The purpose of the utility model is to provide an eccentric clamp for turning U-shaped pipe clamps, which solves the technical problems pointed out in the background technology that the existing U-shaped pipe clamps are first added with threads at both ends and then bent, which easily causes scratching, extrusion or stretching of the threads, resulting in damage to the thread profile, pitch changes or deterioration of surface roughness, affecting the connection performance of the threads, and the bending operation may cause slight changes in the length and diameter of the bar, affecting the relative position and dimensional accuracy of the threaded parts.
[0004] To achieve the above-mentioned purpose, the utility model provides an eccentric clamp for turning U-shaped pipe clamps, including a disc, a front pressure plate, and a rear pressure plate. The rear pressure plate is fixed on the disc, the front pressure plate is connected to the rear pressure plate, and the front pressure plate is provided with a front U-shaped groove on the side facing the rear pressure plate, and the rear pressure plate is provided with a rear U-shaped groove on the side facing the front pressure plate.
[0005] Furthermore, a positioning sleeve is embedded on the side of the rear pressing plate facing the front pressing plate.
[0006] Compared with the existing technology, the beneficial effect of the present invention is that the threads are processed after bending. It is specially designed according to the shape and size of the U-shaped pipe clamp after bending. The upper pressure plate and the lower pressure plate are used to provide a stable clamping force to prevent the pipe clamp from moving or vibrating during the processing process, ensuring that the position of the pipe clamp is accurate when processing the threads, thereby improving the processing accuracy and eliminating the problem of thread damage that may be caused by pre-processing the threads. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0008] Figure 2 This is an exploded schematic diagram of the utility model;
[0009] In the figure, 1. disc; 2. front pressure plate; 3. U-shaped pipe clamp; 4. positioning sleeve; 5. rear pressure plate; 6. connecting screw; 7. connecting screw; 8. front U-shaped groove; 9. large arc groove; 10. small arc groove; 11. rear U-shaped groove; 12. connecting hole; 13. eccentric hole; 14. threaded hole. DETAILED DESCRIPTION
[0010] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in a variety of different configurations.
[0011] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.
[0012] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.
[0013] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship commonly placed when the utility model is used. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.
[0014] In addition, terms such as "horizontal" and "vertical" do not mean that the components must be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", not that the structure must be completely horizontal, but can be slightly tilted.
[0015] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.
[0016] Some embodiments of the present invention are described in detail below with reference to the accompanying drawings.
[0017] See attached for details Figures 1-2 As shown, the eccentric clamp for turning a U-shaped pipe clamp described in the utility model comprises a disc 1, a front pressure plate 2, and a rear pressure plate 5. An eccentric hole 13 is provided on the disc 1, and the rear pressure plate 5 is vertically arranged on the disc 1. A connecting hole (not shown) corresponding to the eccentric hole 13 is provided at the bottom of the rear pressure plate 5, and the rear pressure plate 5 is fixed to the disc 1 by a connecting screw 7 inserted into the bottom of the disc 1. The front pressure plate 2 is provided on the front side of the rear pressure plate 5, and the front pressure plate 2 and the rear pressure plate 5 are the same size. The front pressure plate 2 is fixed to the rear pressure plate 5 by a connecting screw 6, and a connecting hole 12 is provided on the front pressure plate 2, and a corresponding threaded hole 14 is provided on the rear pressure plate 5. The front pressure plate 2 is provided with a front U-shaped groove 8 on the side facing the rear pressure plate 5, and the rear pressure plate 5 is provided with a rear U-shaped groove 11 on the side facing the front pressure plate 2.
[0018] The key difference between this utility model and the prior art is that the U-shaped pipe clamp is bent first, and then the threads are processed at both ends. The operation process of this utility model is as follows: First, the rear pressure plate 5 is fixed to the disc 1, which is then fixed to the three-jaw chuck of the CNC lathe. The bent U-shaped pipe clamp 3 is placed in the rear U-shaped groove 11 on the rear pressure plate 5, and the front pressure plate 2 is connected to the rear pressure plate 5. The position and angle of the U-shaped pipe clamp 3 are adjusted to match the coordinate system in the machining program, and then the threads at both ends are turned.
[0019] A preferred embodiment of the present invention further includes a semi-cylindrical positioning sleeve 4 embedded in the rear pressure plate 5. The rear pressure plate 5 is provided with a large arcuate groove 9 on the side facing the front pressure plate 2, which mates with the arcuate surface of the positioning sleeve 4. The positioning sleeve 4 is also provided with a small arcuate groove 10, which mates with the wall of the U-shaped pipe clamp 3. The positioning sleeve 4 is used to position the processing end of the U-shaped pipe clamp 3, radially increasing the clamping area of the U-shaped pipe clamp 3, preventing the U-shaped pipe clamp 3 from jumping during lathe processing, and ensuring the machining accuracy of the end thread.
[0020] The above describes the basic principles and advantages of the present invention. For those skilled in the art, the above embodiments are merely illustrative of the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the aforementioned embodiments, after reading this specification, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments or replace some or all of the technical features therein with equivalents. Any obvious replacements are within the scope of protection of the present invention without departing from the concept of the present invention.
Claims
1. An eccentric clamp for turning a U-shaped pipe clamp, characterized in that: The invention comprises a disc (1), a front pressure plate (2), and a rear pressure plate (5), wherein the rear pressure plate (5) is fixed on the disc (1), the front pressure plate (2) is connected to the rear pressure plate (5), the front pressure plate (2) is provided with a front U-shaped groove (8) on the side facing the rear pressure plate (5), and the rear pressure plate (5) is provided with a rear U-shaped groove (11) on the side facing the front pressure plate (2).
2. The eccentric clamp for turning a U-shaped pipe clamp according to claim 1, characterized in that: It also includes a positioning sleeve (4), which is embedded on the side of the rear pressure plate (5) facing the front pressure plate (2).