Pipe orifice polishing device for pipe production
By using a clamping assembly that engages with a movable block and a rotating threaded rod, along with a motor-driven grinding assembly, the problem of wobbling during the grinding process of the pipe grinding device is solved, achieving efficient and precise grinding of pipe openings and meeting high-quality requirements.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN CHUANJIAN PIPES
- Filing Date
- 2025-07-09
- Publication Date
- 2026-07-21
AI Technical Summary
Existing pipe grinding equipment is prone to uneven grinding due to shaking during the grinding process, and cannot adapt to different pipe specifications and shapes, thus reducing production efficiency.
The design employs a combination of positive and negative threaded rods and movable blocks, using clamping components and slot structures to secure the pipe, and combined with a motor-driven grinding component, it achieves precise grinding of the pipe opening.
It improves the grinding quality and precision of pipe openings, ensuring grinding uniformity and smoothness, adapting to different pipe specifications and shapes, and improving production efficiency.
Smart Images

Figure CN224526711U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe processing technology, and in particular to a pipe end grinding device for pipe production. Background Technology
[0002] A pipeline is a device made up of pipes, pipe fittings, valves, etc., used to transport gases, liquids, or fluids containing solid particles. Typically, fluids are pressurized by blowers, compressors, pumps, boilers, etc., and then flow from the high-pressure area to the low-pressure area in the pipeline. They can also be transported using the fluid's own pressure or gravity. Pipelines have a wide range of applications, mainly in water supply, drainage, heating, gas supply, long-distance transportation of oil and natural gas, agricultural irrigation, water conservancy projects, and various industrial installations.
[0003] The quality of pipe openings is crucial for pipe connections, sealing, and overall performance. Burrs or unevenness at pipe openings not only affect the tightness of connections between pipes and between pipes and other components, but can also cause pipe damage due to stress concentration during use. However, existing grinding devices cause the pipe to wobble in the clamping device due to vibrations generated between the grinding tool and the pipe opening. This wobble not only leads to uneven grinding surfaces, resulting in over- or under-grinding and affecting the flatness and smoothness of the pipe opening, but also makes it impossible to flexibly adjust to the specific specifications and shape of the pipe. This necessitates changing different grinding equipment or performing complex adjustments when dealing with different pipes, reducing the device's production efficiency. Utility Model Content
[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A pipe end grinding device for pipe production includes a worktable, on which two sets of movable blocks with a left-right symmetrical design are slidably connected to the inner wall of the worktable, and on which a transversely arranged positive and negative threaded rod is rotatably connected to the inner wall of the worktable, and the outer side of the positive and negative threaded rod is threadedly connected to the inner wall of the movable block. The top of the movable block is fixed with a fixing block by screws, a support block is fixed to one side of the fixing block, a slot is opened on the inner wall of the support block, a clamping component is provided on one side of the fixing block, and a grinding component is provided on one side of the worktable. The clamping assembly includes a limiting seat fixed to one side of the fixing block by screws. A vertically arranged push rod is rotatably connected to the inner wall of the limiting seat. A connecting block is rotatably connected to the bottom end of the push rod. A clamping block is fixed to one side of the connecting block, and the position of the clamping block corresponds to the position of the slot.
[0006] As a preferred embodiment of the pipe end grinding device for pipe production described in this utility model, the grinding assembly includes a fixing frame fixed to one side of the workbench by screws, a housing fixed to the top of the fixing frame by screws, a first motor installed inside the housing, and a grinding disc fixed to the output end of the first motor by a flange.
[0007] As a preferred embodiment of the pipe end grinding device for pipe production described in this utility model, a second motor is installed inside the workbench, a worm gear is fixed to the output end of the second motor, and a worm wheel is fixed to the outer side of the positive and negative threaded rod, and the outer side of the worm wheel is meshed with the outer side of the worm gear.
[0008] As a preferred embodiment of the pipe end grinding device for pipe production described in this utility model, the inner wall of the workbench is fixed with two sets of support plates, and both sides of the support plates are fixed with horizontally arranged limiting rods. One side of the movable block is fixed with a slider, and the inner wall of the slider is slidably connected to the outer side of the limiting rod.
[0009] As a preferred embodiment of the pipe end grinding device for pipe production described in this utility model, a slide rail is installed on one side of the workbench, a movable frame is fixed on one side of the movable block, and a snap-fit block is slidably connected to the inner wall of the movable frame.
[0010] As a preferred embodiment of the pipe end grinding device for pipe production described in this utility model, the inner wall of the movable frame is threaded with a vertically arranged screw, and the bottom end of the screw is rotatably connected to the top of the snap-fit block, and a turntable is fixed to the top end of the screw.
[0011] As a preferred embodiment of the pipe end grinding device for pipe production described in this utility model, a pull rod is rotatably connected to the outer side of the limiting seat, and the inner wall of the pull rod is rotatably connected to the outer side of the push rod. Positioning blocks for limiting the pull rod are fixed on both sides of the limiting seat.
[0012] In summary, this utility model has the following beneficial effects: 1. Through the cooperation of the positive and negative threaded rods and the movable blocks, when the positive and negative threaded rods are rotated, the two sets of movable blocks designed symmetrically on the left and right can slide synchronously inward or outward along the inner wall of the worktable. This allows the device to adapt to the fixing requirements of pipes of different lengths. At the same time, through the fixing block fixed on the top of the movable block and the slot opened on one side of the support block, the pipe can be firmly clamped in conjunction with the clamping components, avoiding the pipe from shaking during the grinding process and improving the grinding quality of the pipe by the device.
[0013] 2. In the clamping assembly, the push rod rotates within the limit seat, driving the connecting block and clamping block to move. When used in conjunction with the slot, it ensures that the pipe will not shake or shift during the grinding process, allowing the grinding assembly to grind the pipe opening more precisely, ensuring the uniformity and consistency of grinding, reducing grinding defects caused by pipe shaking, improving the smoothness and precision of the pipe opening, and meeting the high-quality requirements of pipe production. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is an overall structural diagram of a pipe end grinding device used in pipe production.
[0015] Figure 2 A structural diagram of the workbench of a pipe end grinding device used in pipe production.
[0016] Figure 3 A structural diagram of the clamping assembly of a pipe end grinding device for pipe production.
[0017] Figure 4 This is a structural diagram of the grinding component of a pipe end grinding device for pipe production.
[0018] Figure 5 for Figure 2 The enlarged structural diagram at point A is shown.
[0019] The following are the labeling elements in the diagram: 1. Workbench; 2. Movable block; 3. Threaded rod (positive and negative); 4. Fixed block; 5. Support block; 6. Slot; 7. Clamping assembly; 71. Limit seat; 72. Push rod; 73. Connecting block; 74. Clamping block; 8. Grinding assembly; 81. Fixed frame; 82. Housing; 83. First motor; 84. Grinding disc; 9. Second motor; 10. Worm gear; 11. Worm wheel; 12. Support plate; 13. Limit rod; 14. Slider; 15. Slide rail; 16. Movable frame; 17. Snap-fit block; 18. Screw; 19. Turntable; 20. Pull rod; 21. Positioning block. Detailed Implementation
[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0022] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0023] Example 1: Reference Figures 1-5 This is the first embodiment of the present invention. This embodiment provides a pipe end grinding device for pipe production, including a workbench 1. The inner wall of the workbench 1 is slidably connected to two sets of movable blocks 2 with a left-right symmetrical design. The inner wall of the workbench 1 is rotatably connected to a transversely arranged positive and negative threaded rod 3, and the outer side of the positive and negative threaded rod 3 is threadedly connected to the inner wall of the movable block 2.
[0024] The workbench 1 provides a platform for the installation and operation of other components, ensuring that each component can operate stably. At the same time, the internal space is used to accommodate and install structures related to the movement of the movable block 2 and power transmission. The movable block 2 can move symmetrically left and right by rotating the positive and negative threaded rods 3. When the positive and negative threaded rods 3 rotate, the two sets of movable blocks 2 will move in opposite directions at the same time, so as to realize the synchronous approach or departure of the clamping assembly 7 to adapt to the clamping requirements of pipes of different lengths.
[0025] The top of the movable block 2 is fixed with a fixing block 4 by screws. A support block 5 is fixed on one side of the fixing block 4. A slot 6 is opened on the inner wall of the support block 5. A clamping component 7 is provided on one side of the fixing block 4. A grinding component 8 is provided on one side of the worktable 1.
[0026] By setting the fixing block 4, an installation base can be provided for the support block 5 and the clamping component 7. At the same time, the movement of the movable block 2 can be transmitted to the clamping component 7, so that the clamping component 7 can adjust its position as the movable block 2 moves. By setting the support block 5 to cooperate with the slot 6, the pipe is placed to keep the pipe in a relatively stable position during the grinding process, preventing the pipe from shaking and affecting the grinding effect. By setting the clamping component 7, the pipe can be fixed by its internal structure in conjunction with the support block 5 and the slot 6. By setting the grinding component 8, the pipe opening can be ground by its internal structure.
[0027] The clamping assembly 7 includes a limiting seat 71 fixed to one side of the fixing block 4 by screws. A vertically arranged push rod 72 is rotatably connected to the inner wall of the limiting seat 71. A connecting block 73 is rotatably connected to the bottom end of the push rod 72. A clamping block 74 is fixed to one side of the connecting block 73, and the position of the clamping block 74 corresponds to the position of the slot 6.
[0028] The limiting seat 71 provides rotational support for the push rod 72 and serves as the mounting base for the pull rod 20, ensuring that the push rod 72 and the pull rod 20 can rotate normally. By rotating the push rod 72, the connecting block 73 and the clamping block 74 can be moved. The connecting block 73 can transmit the movement of the push rod 72 to the clamping block 74. The clamping block 74 can clamp the pipe and, in conjunction with the slot 6, ensure that the pipe will not move during the grinding process.
[0029] Example 2: This is the second embodiment of the present invention, which is based on the previous embodiment.
[0030] Specifically, the grinding assembly 8 includes a mounting bracket 81 fixed to one side of the worktable 1 by screws, a housing 82 fixed to the top of the mounting bracket 81 by screws, a first motor 83 installed inside the housing 82, and a grinding disc 84 fixed to the output end of the first motor 83 by a flange.
[0031] The mounting bracket 81 provides a base for the housing 82 to fix the grinding assembly 8 on the worktable 1. The housing 82 is used to install the first motor 83 and protect the first motor 83 from the influence of the external environment. The first motor 83 works in conjunction with the grinding disc 84 to grind the pipe opening at high speed through the high-speed rotation of the grinding disc 84, making its surface smooth and achieving the required processing accuracy.
[0032] Specifically, a second motor 9 is installed inside the workbench 1. A worm gear 10 is fixed to the output end of the second motor 9. A worm wheel 11 is fixed to the outside of the positive and negative threaded rod 3, and the outside of the worm wheel 11 is meshed with the outside of the worm gear 10.
[0033] By setting up a second motor 9, a worm gear 10 and a worm wheel 11 for coordinated use, the output end of the second motor 9 can easily drive the worm gear 10 to rotate, thereby driving the positive and negative threaded rods 3 to rotate, realizing the movement of the movable block 2, and providing power for the position adjustment of the clamping assembly 7.
[0034] Specifically, two sets of support plates 12 are fixed to the inner wall of the workbench 1. A horizontally arranged limiting rod 13 is fixed to both sides of the support plate 12. A slider 14 is fixed to one side of the movable block 2, and the inner wall of the slider 14 is slidably connected to the outer side of the limiting rod 13.
[0035] The support plate 12 provides a mounting base for the limit rod 13, ensuring that the limit rod 13 can be stably installed in the workbench 1. By setting the limit rod 13 to work in conjunction with the slider 14, it can guide and limit the movement of the movable block 2, preventing the movable block 2 from deviating during movement and ensuring that the movable block 2 can move smoothly along a straight line.
[0036] Example 3: This is the third embodiment of the present invention, which is based on the first two embodiments.
[0037] Specifically, a slide rail 15 is installed on one side of the workbench 1, and a movable frame 16 is fixed on one side of the movable block 2. A snap-fit block 17 is slidably connected to the inner wall of the movable frame 16.
[0038] The slide rail 15 provides a sliding track for the movable frame 16, allowing the movable frame 16 to move along the slide rail 15. The movable frame 16 works in conjunction with the locking block 17, and the locking block 17 can be moved by the rotation of the screw 18, thus raising and lowering the locking block 17 to fix the movable block 2. This prevents the pipe fixed to the top of the movable block 2 by the clamping assembly 7 from shaking up and down during the grinding process, thereby improving the stability and accuracy of the grinding.
[0039] Specifically, the inner wall of the movable frame 16 is threaded with a vertically arranged screw 18, and the bottom end of the screw 18 is rotatably connected to the top of the snap-fit block 17, and the top end of the screw 18 is fixed with a turntable 19.
[0040] By rotating the turntable 19, the screw 18 is rotated, which in turn causes the locking block 17 to rise and fall, so that the locking block 17 abuts against the top of the worktable 1, thereby fixing the movable block 2.
[0041] Specifically, a pull rod 20 is rotatably connected to the outer side of the limiting seat 71, and the inner wall of the pull rod 20 is rotatably connected to the outer side of the push rod 72. Positioning blocks 21 for limiting the pull rod 20 are fixed on both sides of the limiting seat 71.
[0042] Pulling or pushing the lever 20 can drive the push rod 72 to rotate, thereby enabling the operation of the clamping block 74, which facilitates the worker's clamping and releasing actions. The positioning block 21 can limit the lever 20, ensuring that the lever 20 can be kept in a proper position during operation, and preventing the lever 20 from rotating excessively and affecting the clamping effect.
[0043] Working principle: First, the pipe to be ground is placed stably in the slot 6 of the support block 5. At this time, the pipe is in the clamping state. Next, the second motor 9 in the worktable 1 is started. The output end of the second motor 9 drives the worm gear 10 to rotate. Since the worm gear 10 meshes with the worm wheel 11 on the positive and negative threaded rod 3, the positive and negative threaded rod 3 rotates accordingly. When the positive and negative threaded rod 3 rotates, the two sets of movable blocks 2 move smoothly in opposite directions in a straight line under the guidance and limiting action of the limiting rod 13 and the slider 14. This drives the fixed block 4 to move, so that the clamping assembly 7 reaches the appropriate position to accommodate pipes of different lengths. Then, the pull rod 20 is pulled down. The pull rod 20 drives the push rod 72 to rotate in the limiting seat 71. The rotation of the push rod 72 drives the connecting block 73 to move. The connecting block 73 transmits the motion to the clamping block 74, so that the clamping block 74 moves closer to the pipe and clamps it. The slot 6 clamps the pipe, while the positioning block 21 limits the pull rod 20 to ensure it is in the correct position and to guarantee the clamping effect. Then, the turntable 19 is rotated, which drives the screw 18 to rotate within the movable frame 16, causing the locking block 17 to descend and press against the top of the worktable 1, fixing the movable block 2 and preventing the pipe from swaying up and down during the grinding process. Finally, the first motor 83 inside the outer shell 82 of the fixed frame 81 is started. The output end of the first motor 83 drives the grinding disc 84 to rotate at high speed, grinding the pipe opening to make its surface smooth and achieve the required processing accuracy. After grinding is completed, the first motor 83 is turned off, and the turntable 19 is rotated in the opposite direction to raise the locking block 17, releasing the fixation of the movable block 2. Then, the pull rod 20 is pulled or pushed in the opposite direction to release the clamping block 74 from the pipe, and the ground pipe is taken out, completing a full grinding operation.
[0044] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A pipe end grinding device for pipe production, comprising a worktable (1), characterized in that: The inner wall of the workbench (1) is slidably connected with two sets of movable blocks (2) designed symmetrically on the left and right. The inner wall of the workbench (1) is rotatably connected with a horizontally arranged positive and negative threaded rod (3), and the outer side of the positive and negative threaded rod (3) is threadedly connected to the inner wall of the movable block (2). The top of the movable block (2) is fixed with a fixing block (4) by screws. A support block (5) is fixed on one side of the fixing block (4). A slot (6) is opened on the inner wall of the support block (5). A clamping component (7) is provided on one side of the fixing block (4). A grinding component (8) is provided on one side of the worktable (1). The clamping assembly (7) includes a limiting seat (71) fixed to one side of the fixing block (4) by screws. The inner wall of the limiting seat (71) is rotatably connected to a vertically arranged push rod (72). The bottom end of the push rod (72) is rotatably connected to a connecting block (73). A clamping block (74) is fixed to one side of the connecting block (73), and the position of the clamping block (74) corresponds to the position of the slot (6).
2. The pipe end grinding device for pipe production as described in claim 1, characterized in that: The grinding assembly (8) includes a mounting bracket (81) fixed to one side of the worktable (1) by screws. The top of the mounting bracket (81) is fixed with a housing (82) by screws. A first motor (83) is installed inside the housing (82). The output end of the first motor (83) is fixed with a grinding disc (84) by a flange.
3. The pipe end grinding device for pipe production as described in claim 1, characterized in that: The workbench (1) is equipped with a second motor (9), and a worm gear (10) is fixed at the output end of the second motor (9). A worm wheel (11) is fixed on the outside of the positive and negative threaded rod (3), and the outside of the worm wheel (11) is meshed with the outside of the worm gear (10).
4. The pipe end grinding device for pipe production as described in claim 1, characterized in that: The inner wall of the workbench (1) is fixed with two sets of support plates (12). Both sides of the support plates (12) are fixed with horizontally arranged limiting rods (13). One side of the movable block (2) is fixed with a slider (14), and the inner wall of the slider (14) is slidably connected to the outer side of the limiting rod (13).
5. The pipe end grinding device for pipe production as described in claim 1, characterized in that: A slide rail (15) is installed on one side of the workbench (1), and a movable frame (16) is fixed on one side of the movable block (2). A snap-fit block (17) is slidably connected to the inner wall of the movable frame (16).
6. The pipe end grinding device for pipe production as described in claim 5, characterized in that: The inner wall of the movable frame (16) is threaded with a vertically arranged screw (18), and the bottom end of the screw (18) is rotatably connected to the top of the snap-fit block (17). The top end of the screw (18) is fixed with a turntable (19).
7. The pipe end grinding device for pipe production as described in claim 1, characterized in that: The outer side of the limiting seat (71) is rotatably connected to a pull rod (20), and the inner wall of the pull rod (20) is rotatably connected to the outer side of the push rod (72). Both sides of the limiting seat (71) are fixed with positioning blocks (21) for limiting the pull rod (20).