Positioning fixture and polishing process of a groove pipe polishing machine tool

Abstract

The present application relates to the technical field of pipe processing, in particular to a positioning clamp of a groove pipe polishing machine and a polishing process, which comprises a base, a support frame, a polishing structure, a rotating seat, a bearing block, a supporting rod, a first clamping plate and a second clamping plate, the support frame is fixedly connected with the base and located at the top of the base, the polishing structure is arranged on one side of the support frame, the rotating seat is rotatably arranged on the support frame, the supporting rod is fixed on the rotating seat, the bearing block is slidably arranged on one side of the supporting rod, and is used for pushing the groove pipe to contact the supporting rod for pre-fixing, the first clamping plate and the second clamping plate are slidably arranged above the rotating seat, and are used for fixing the groove pipe. Thus, the two end faces of the elbow groove pipe can be conveniently polished, and the work efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of pipe fitting processing technology, and in particular to a positioning fixture and polishing process for a grooved pipe fitting polishing machine. Background Technology

[0002] A grooved pipe polishing fixture is a tool specifically designed to hold grooved pipe fittings for surface polishing. Its purpose is to improve polishing efficiency and quality while ensuring operational safety.

[0003] For grooved pipe fittings with elbows, the structural characteristic of having a certain angle (usually 45° or 90°) between the two end faces presents significant technical challenges in actual processing, especially in the polishing process. Particularly when performing high-precision polishing on the two end faces, since these two end faces are usually perpendicular to each other or at a specific angle, the polishing equipment or fixture must be able to move the polishing structure in two different directions to complete the full treatment of each end face.

[0004] This demand for multi-directional polishing makes traditional single-directional polishing devices insufficient to meet processing requirements, necessitating the introduction of control systems with multi-axis motion capabilities, such as those equipped with rotary platforms, adjustable-angle polishing heads, or CNC robotic arms. This not only increases the complexity and manufacturing cost of the equipment but also raises the technical threshold for operation and the setup time. Summary of the Invention

[0005] The purpose of this invention is to provide a positioning fixture and polishing process for a grooved pipe polishing machine, which aims to facilitate the polishing of the two end faces of the elbow grooved pipe fitting and improve work efficiency.

[0006] To achieve the above objectives, in a first aspect, the present invention provides a positioning fixture for a grooved pipe polishing machine, comprising a base, a support frame, and a grinding structure. The support frame is fixedly connected to the base and located on top of the base. The grinding structure is disposed on one side of the support frame and further comprises a rotating seat, a retaining block, a support rod, a first clamping plate, and a second clamping plate. The rotating seat is rotatably disposed on the support frame, the support rod is fixed on the rotating seat, and the retaining block is slidably disposed on one side of the support rod for pushing the grooved pipe into contact with the support rod for pre-fixation. The first clamping plate and the second clamping plate are slidably disposed above the rotating seat for fixing the grooved pipe.

[0007] The rotating seat includes a rotating seat body and a rotating motor. The rotating seat body is rotatably mounted on the support frame. The output end of the rotating motor is connected to the rotating seat body. The rotating seat body is provided with multiple slots. The support frame is also provided with a locking structure. The locking structure is used to slide into the slots to lock the position of the rotating seat body.

[0008] The locking structure includes a locking plate, a third cylinder, and a support plate. The locking plate is slidably disposed on the support frame and close to the locking slot. The output end of the third cylinder is connected to the locking plate. The support plate is fixed on the support frame and supports the locking plate.

[0009] The locking structure further includes an alignment plate, a first gear, a second gear, and a bevel gear set. The clamping plate is provided with a first rack, and the alignment plate has a driving rack. The alignment plate is slidably disposed on one side of the support frame to limit the grooved pipe fitting when it is placed. The first gear is rotatably disposed on the support frame and meshes with the first rack. The bevel gear set is connected to the first gear, and the second gear is connected to the bevel gear set and meshes with the driving rack.

[0010] The abutment block includes a V-shaped block, a sliding support plate, a first screw, and a second cylinder. The sliding support plate is slidably disposed on one side of the rotating seat body. The output end of the second cylinder is connected to the sliding support plate. The V-shaped block is slidably disposed on the sliding support plate. The first screw is threadedly connected to the V-shaped block and rotatably connected to the sliding support plate.

[0011] The abutment block further includes a reset elastic element, which is disposed between the second cylinder and the sliding support plate. The sliding support plate is also provided with an adjustment scale, which is used to indicate the adjustment trend of the V-block.

[0012] The support rod includes a support rod body, two contact plates, two control blocks, two pressure rods, a pressure block, and a second screw. The two control blocks are slidably disposed within the support rod body, and the pressure block is slidably disposed on one side of the support rod body. One end of each of the two pressure rods is connected to the two control blocks, and the other end of each pressure rod is connected to the pressure block. The second screw is rotatably connected to the support rod body and threadedly connected to the pressure block. The two contact plates are rotatably disposed on the two control blocks.

[0013] The first clamping plate includes a clamping plate body, a control cylinder, and a contact pad. The clamping plate body is slidably disposed above the rotating seat body. The output end of the control cylinder is connected to the clamping plate body, and the contact pad is fixed on the clamping plate body.

[0014] The positioning fixture of the grooved pipe polishing machine tool also includes a dust baffle plate, which is fixedly connected to the support frame and located on one side of the support frame.

[0015] Secondly, the present invention also provides a polishing process for a grooved pipe polishing machine tool, which employs the aforementioned positioning fixture for the grooved pipe polishing machine tool.

[0016] This invention discloses a positioning fixture and polishing process for a grooved pipe polishing machine. The positioning fixture includes a base, a support frame, and a grinding structure. The base, as the foundation of the entire device, possesses good stability and load-bearing capacity, supporting all other components and ensuring their stability during operation. The support frame is fixedly connected to the base and located on top of the base, providing a mounting foundation and support for subsequent components. The grinding structure is located on one side of the support frame, enabling efficient and uniform polishing of the grooved pipe after the fixture has positioned and clamped it. The positioning fixture also includes a rotating seat, a retaining block, a support rod, a first clamping plate, and a second clamping plate. The rotating seat is rotatably mounted on the support frame, allowing the grooved pipe to rotate, thus enabling grinding of different surfaces through rotation. The support rod is fixed to the rotating seat, serving as the main support component for placing and initially positioning the grooved pipe. The retaining block is slidably mounted on one side of the support rod, its main function being to push the grooved pipe to be processed into close contact with the support rod, thereby achieving pre-fixation. The design of this abutment block not only enables rapid initial positioning of the grooved pipe fitting but also effectively prevents displacement or loosening due to uneven force during subsequent clamping. The first and second clamping plates are slidably positioned above the rotating seat, and can move relative to each other for further clamping and securing the grooved pipe fitting. This clamping plate structure employs a sliding design, allowing adjustment according to the actual diameter of the grooved pipe fitting for adaptive clamping. This ensures uniform clamping force distribution, avoids damaging the workpiece surface, and guarantees the stability and safety of the workpiece during polishing.

[0017] The positioning fixture of the grooved pipe polishing machine tool provided by the present invention has the advantages of simple structure, convenient operation, stable clamping and strong applicability, which can significantly improve the positioning accuracy and processing efficiency of grooved pipes in the polishing process. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural diagram of a positioning fixture for a grooved pipe polishing machine tool according to the present invention.

[0020] Figure 2 This is a right-side structural diagram of a positioning fixture for a grooved pipe polishing machine tool according to the present invention.

[0021] Figure 3 This is a left-side structural diagram of a positioning fixture for a grooved pipe polishing machine tool according to the present invention.

[0022] Figure 4 yes Figure 3 A magnified view of detail B.

[0023] Figure 5 This is a cross-sectional view of a positioning fixture for a grooved pipe polishing machine according to the present invention.

[0024] Base 101, support frame 102, grinding structure 103, rotating seat 104, abutment block 105, support rod 106, first clamping plate 107, second clamping plate 108, rotating seat body 109, rotating motor 110, clamping plate 111, third cylinder 112, support plate 113, alignment plate 114, first gear 115, second gear 116, bevel gear set 117, first rack 118, V-block 119, sliding support plate 120, first screw 121, second cylinder 122, reset elastic element 123, adjustment scale 124, support rod body 125, contact plate 126, control block 127, pressure rod 128, pressure block 129, second screw 130, clamping plate body 131, control cylinder 132, contact pad 133, dust baffle 134. Detailed Implementation

[0025] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0026] In the description of this invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of the invention. Furthermore, in the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] First Embodiment

[0028] Please see Figures 1-5 This invention provides a positioning fixture for a grooved pipe polishing machine, comprising a base 101, a support frame 102, and a grinding structure 103. The support frame 102 is fixedly connected to the base 101 and is located on top of the base 101. The grinding structure 103 is disposed on one side of the support frame 102. It also includes a rotating seat 104, a holding block 105, a support rod 106, a first clamping plate 107, and a second clamping plate 108. The rotating seat 104 is rotatably disposed on the support frame 102. The support rod 106 is fixed on the rotating seat 104. The holding block 105 is slidably disposed on one side of the support rod 106 for pushing the grooved pipe into contact with the support rod 106 for pre-fixation. The first clamping plate 107 and the second clamping plate 108 are slidably disposed above the rotating seat 104 for fixing the grooved pipe.

[0029] In this embodiment, the positioning fixture includes a base 101, a support frame 102, and a polishing structure 103. The base 101, as the foundation of the entire device, possesses good stability and load-bearing capacity, supporting the remaining components and ensuring their stability during operation. The support frame 102 is fixedly connected to the base 101 and located on top of the base 101, providing a mounting base and support for subsequent components. The polishing structure 103 is disposed on one side of the support frame 102, enabling efficient and uniform polishing of the grooved pipe fitting after the fixture has completed positioning and clamping.

[0030] The positioning fixture also includes a rotating base 104, a supporting block 105, a support rod 106, a first clamping plate 107, and a second clamping plate 108. The rotating base 104 is rotatably mounted on the support frame 102, allowing the grooved pipe fitting to rotate and enabling grinding of different surfaces through rotation. The support rod 106 is fixed to the rotating base 104, serving as the main support component for placing and initially positioning the grooved pipe fitting.

[0031] The abutment block 105 is slidably disposed on one side of the support rod 106. Its main function is to push the grooved pipe fitting to be processed into close contact with the support rod 106, thereby achieving the purpose of pre-fixation. Through the design of the abutment block 105, not only can the initial positioning of the grooved pipe fitting be completed quickly, but it can also effectively prevent the deviation or loosening caused by uneven force during the subsequent clamping process.

[0032] Furthermore, the first clamping plate 107 and the second clamping plate 108 are slidably disposed above the rotating seat 104, and can move relative to each other for further clamping and fixing of the grooved pipe fitting. This clamping plate structure adopts a sliding design, which can be adjusted according to the actual diameter of the grooved pipe fitting to achieve adaptive clamping, ensuring uniform clamping force distribution, avoiding damage to the workpiece surface, and simultaneously ensuring the stability and safety of the workpiece during polishing.

[0033] In summary, the positioning fixture for the grooved pipe polishing machine tool provided by the present invention has the advantages of simple structure, convenient operation, stable clamping, and strong applicability, and can significantly improve the positioning accuracy and processing efficiency of grooved pipes during the polishing process.

[0034] The rotating seat 104 includes a rotating seat body 109 and a rotating motor 110. The rotating seat body 109 is rotatably mounted on the support frame 102. The output end of the rotating motor 110 is connected to the rotating seat body 109. The rotating seat body 109 is provided with multiple slots. The support frame 102 is also provided with a locking structure. The locking structure is used to slide into the slots to lock the position of the rotating seat body 109.

[0035] The rotating seat body 109 is rotatably mounted on the support frame 102 via bearings or a rotating shaft structure, enabling it to rotate at a certain angle in the horizontal plane to meet the positioning requirements of grooved pipe fittings with different processing angles. The rotating motor 110 is fixedly installed on one side of the support frame 102, and its output end is connected to the rotating seat body 109 to drive the rotating seat body 109 to perform precise angle adjustments, thereby achieving automated control and improving operating efficiency and positioning accuracy.

[0036] The rotating base body 109 has multiple slots evenly arranged along its circumference. These slots can be grooves or holes. A locking structure is also provided on the support frame 102. This locking structure can be a pin-type, pneumatic, or hydraulically driven type, and can slide into the corresponding slot to mechanically lock the position of the rotating base body 109. This prevents the rotating base 104 from shifting due to vibration or external force during polishing, thereby ensuring the stability and processing accuracy of the workpiece.

[0037] The locking structure includes a locking plate 111, a third cylinder 112, and a support plate 113. The locking plate 111 is slidably disposed on the support frame 102 and close to the locking slot. The output end of the third cylinder 112 is connected to the locking plate 111. The support plate 113 is fixed on the support frame 102 and supports the locking plate 111.

[0038] The locking plate 111 is slidably mounted on the support frame 102 and close to the slot on the rotating seat body 109. Its function is to insert into or disengage from the slot through sliding motion, thereby locking and releasing the rotating seat body 109. The third cylinder 112, as a driving component, is fixedly mounted on one side of the support frame 102. Its output end is connected to the locking plate 111, used to control the forward and backward movement of the locking plate 111, realizing automated locking and unlocking operations. The support plate 113 is fixedly mounted on the support frame 102, used to support the locking plate 111 and ensure its stability and guidance during sliding, preventing jamming or displacement due to uneven force.

[0039] The locking structure further includes an alignment plate 114, a first gear 115, a second gear 116, and a bevel gear set 117. A first rack 118 is provided on the clamping plate 111. The alignment plate 114 has a driving rack. The alignment plate 114 is slidably disposed on one side of the support frame 102 for limiting the grooved pipe fitting when it is placed. The first gear 115 is rotatably disposed on the support frame 102 and meshes with the first rack 118. The bevel gear set 117 is connected to the first gear 115. The second gear 116 is connected to the bevel gear set 117 and meshes with the driving rack.

[0040] The clamping plate 111 has a first rack 118 on one side, which meshes with a first gear 115 to form a transmission connection. When the third cylinder 112 drives the clamping plate 111 to slide, the first rack 118 on the clamping plate 111 will drive the first gear 115 to rotate, thereby transmitting the motion to the subsequent transmission mechanism. The alignment plate 114 is slidably disposed on one side of the support frame 102, near the grooved pipe placement area, and is used to initially limit and center the grooved pipe before the fixture clamps the workpiece, so as to improve clamping efficiency and accuracy.

[0041] Specifically, when the third cylinder 112 pushes the clamping plate 111 to slide away from the clamping groove, the first gear 115 drives the bevel gear set 117 to rotate, thereby driving the second gear 116 to rotate, so as to move the alignment plate 114 closer to the grooved pipe fitting to limit the grooved pipe fitting, at which time the grooved pipe fitting can be clamped. After clamping is completed, the third cylinder 112 pushes the clamping plate 111 to move closer to the clamping groove, at which time the alignment plate 114 moves away from the grooved pipe fitting, so that the grinding structure 103 can grind the end face of the grooved pipe fitting.

[0042] The abutment block 105 includes a V-block 119, a sliding support plate 120, a first screw 121, and a second cylinder 122. The sliding support plate 120 is slidably disposed on one side of the rotating seat body 109. The output end of the second cylinder 122 is connected to the sliding support plate 120. The V-block 119 is slidably disposed on the sliding support plate 120. The first screw 121 is threadedly connected to the V-block 119 and rotatably connected to the sliding support plate 120.

[0043] The sliding support plate 120 is slidably disposed on one side of the rotating seat body 109. It typically uses a guide rail or sliding groove structure to achieve smooth guiding motion, ensuring good straightness and stability during movement. The second cylinder 122, as a driving element, is fixedly mounted on the rotating seat body 109. Its output end is connected to the sliding support plate 120, which pushes the sliding support plate 120 to reciprocate in a set direction, thereby causing the entire abutment block 105 to move closer to or away from the grooved pipe fitting, achieving initial pressing and positioning of the workpiece.

[0044] The V-block 119 is slidably disposed on the top or front of the sliding support plate 120. Its surface is designed with a V-shaped structure, which can well fit round or irregularly shaped pipes of different diameters, achieving a self-centering function and improving the centering and reliability of clamping. The first screw 121 is threadedly connected to the V-block 119 and rotatably connected to the sliding support plate 120. The operator can rotate the first screw 121 to drive the V-block 119 to make fine adjustments relative to the sliding support plate 120, thereby adapting to grooved pipes of different sizes and achieving precise adjustment.

[0045] The abutment block 105 also includes a reset elastic element 123, which is disposed between the second cylinder 122 and the sliding support plate 120. The sliding support plate 120 is also provided with an adjustment scale 124, which is used to indicate the adjustment trend of the V-block 119.

[0046] The supporting block 105 also includes a reset elastic element 123, which is preferably a compression spring or an elastic rubber pad, disposed between the second cylinder 122 and the sliding support plate 120. This reset elastic element 123 automatically resets the sliding support plate 120 and its V-block 119 to their initial positions after the second cylinder 122 releases pressure, preventing components from jamming or being damaged due to mechanical inertia or external force. It also improves the safety and reusability of the equipment. An adjustment scale 124 is also provided on the sliding support plate 120. This scale 124 can be a graduated ruler or a digital display device, used to indicate the relative movement position of the V-block 119. This helps the operator intuitively understand the current adjustment trend and clamping range of the V-block 119, thereby achieving precise control and avoiding problems such as excessively tight or loose clamping due to misoperation.

[0047] The support rod 106 includes a support rod body 125, two contact plates 126, two control blocks 127, two pressure rods 128, a pressure block 129, and a second screw 130. The two control blocks 127 are slidably disposed within the support rod body 125, and the pressure block 129 is slidably disposed on one side of the support rod body 125. One end of each of the two pressure rods 128 is connected to one of the two control blocks 127, and the other end of each pressure rod 128 is connected to the pressure block 129. The second screw 130 is rotatably connected to the support rod body 125 and threadedly connected to the pressure block 129. The two contact plates 126 are rotatably disposed on the two control blocks 127.

[0048] The support rod body 125 is the main structure of the entire support rod 106, and is usually made of high-strength metal material, possessing good rigidity and resistance to deformation. It has an internal cavity structure to accommodate two control blocks 127. These two control blocks 127 can be horizontally adjusted along grooves or guide rails within the support rod body 125, thereby achieving adaptable support for grooved pipe fittings of different diameters.

[0049] Two pressure rods 128 are respectively disposed on both sides of the support rod body 125, one end of which is connected to the corresponding control block 127, and the other end is hinged to the pressure block 129. The pressure block 129 is slidably disposed on one side of the support rod body 125, serving as an external force application point, and drives the linkage mechanism of the pressure rod 128 to move through sliding. When the pressure block 129 is displaced, the pressure rod 128 transmits the motion to the control block 127, causing the two control blocks 127 to move inward or outward, thereby changing the position and angle of the contact plate 126.

[0050] The second screw 130 passes through and is rotatably connected to the support rod body 125, while simultaneously forming a threaded drive engagement with the pressure block 129. By rotating the second screw 130, the position of the pressure block 129 on the support rod body 125 can be precisely controlled, thereby achieving synchronous drive of the pressure rod 128 and the control block 127, and thus adjusting the support state. The screw is preferably equipped with a handwheel or electric drive device for easy manual or automatic adjustment, improving operational efficiency and precision.

[0051] Furthermore, the two contact plates 126 are rotatably mounted on the two control blocks 127, and their surfaces can be designed as flat, curved, or multi-point contact structures according to actual needs to adapt to grooved pipe fittings of different shapes. A rotating shaft structure is provided between the contact plate 126 and the control block 127, and a damping adjustment device or elastic reset mechanism can be configured to allow the contact plate 126 to rotate freely within a certain range, automatically conform to the outer wall of the workpiece, improve support stability, and reduce damage caused by clamping stress concentration.

[0052] The first clamping plate 107 includes a clamping plate body 131, a control cylinder 132, and a contact pad 133. The clamping plate body 131 is slidably disposed above the rotating seat body 109. The output end of the control cylinder 132 is connected to the clamping plate body 131. The contact pad 133 is fixed on the clamping plate body 131.

[0053] The clamping plate body 131 is slidably disposed above the rotating seat body 109 via a slide rail or guide groove structure, and can move horizontally in a set direction to achieve clamping and releasing operations on the grooved pipe fitting. Its movement is smooth and reliable, ensuring precise clamping action. The control cylinder 132, as a power drive element, is fixedly installed on the rotating seat body 109, and its output end is connected to the clamping plate body 131. It is used to push the clamping plate body 131 towards or away from the second clamping plate 108, thereby realizing the automatic clamping or releasing function of the grooved pipe fitting. A contact pad 133 is provided on the inner surface of the clamping plate body 131. The contact pad 133 is made of wear-resistant, non-slip, and elastic materials, such as rubber, polyurethane, or engineering plastics, which can effectively increase the friction between the clamping plate and the grooved pipe fitting, preventing the workpiece from slipping or shifting during polishing, and avoiding damage to the pipe fitting surface due to excessive clamping force, thus protecting the appearance quality of the workpiece.

[0054] The positioning fixture of the grooved pipe polishing machine tool also includes a dust baffle 134, which is fixedly connected to the support frame 102 and located on one side of the support frame 102.

[0055] The positioning fixture of the grooved pipe polishing machine also includes a dust baffle 134. The dust baffle 134 is a protective structural component, preferably made of metal or high-strength engineering plastic, fixedly connected to the support frame 102, and located on one side of the support frame 102, close to the grinding structure 103 or the clamping area. Its main function is to prevent flying grinding debris, dust, and coolant from entering the fixture or other precision components of the equipment during the polishing process, thereby reducing equipment wear, extending service life, and improving the cleanliness and safety of the working environment.

[0056] Second Embodiment

[0057] The present invention also provides a polishing process for a grooved pipe polishing machine tool, which uses the positioning fixture of the grooved pipe polishing machine tool.

[0058] The polishing process includes the following steps:

[0059] The grooved pipe fitting to be polished is placed on the support rod 106. The second cylinder 122 in the abutment block 105 drives the sliding support plate 120 to move the V-block 119 towards the workpiece. The V-shaped structure achieves automatic centering and initial tightening of the workpiece, making the grooved pipe fitting fit against the support rod 106, thus completing the pre-fixation. During this process, adjusting the scale 124 helps the operator intuitively grasp the adjustment trend of the V-block 119, ensuring clamping compatibility.

[0060] The control cylinders 132 on the first clamping plate 107 and the second clamping plate 108 are activated to drive the clamping plate body 131 to move, so that the contact pad 133 fits tightly against the outer wall of the grooved pipe fitting, thereby achieving clamping and fixing.

[0061] According to the processing angle requirements of the grooved pipe fitting, the rotating motor 110 is started, which drives the rotating seat body 109 to rotate to the appropriate position. The third cylinder 112 in the locking structure pushes the card plate 111 into the corresponding slot to achieve mechanical locking of the rotating seat body 109, preventing deviation or shaking during subsequent processing, thereby ensuring the stability of the entire fixture system.

[0062] Once the grooved pipe fitting is stably clamped and its angle adjusted, the grinding structure 103 is activated to perform polishing. The grinding structure 103 can be equipped with multiple grinding heads as needed, each corresponding to a different part of the groove for fine processing. Due to the excellent clamping stability and self-adaptive capability of the fixture, it can ensure uniform pressure and stable trajectory during the polishing process, significantly improving the polishing quality and consistency.

[0063] After polishing, the control system sequentially releases the clamping cylinders and unlocks the locking structure, and restores all moving parts to their initial state by resetting the elastic element 123. Subsequently, the polished grooved pipe is removed manually or by a robotic arm, completing one processing cycle.

[0064] In summary, the polishing process of the grooved pipe fitting polishing machine provided by this invention, combined with a dedicated positioning fixture, achieves fully automated control of the entire process from workpiece clamping, angle adjustment, automatic alignment to polishing and fixture reset. It boasts advantages such as ease of operation, precise positioning, reliable clamping, and high polishing quality. This process is particularly suitable for mass production of grooved pipe fittings with complex shapes, multiple specifications, and high precision requirements, and has broad application prospects and promotional value.

[0065] The above description discloses only one preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. Those skilled in the art will understand that all or part of the processes of the above embodiments can be implemented, and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A positioning clamp of a groove pipe polishing machine tool, comprising a base, a support frame and a polishing structure, the support frame is fixedly connected with the base and located on the top of the base, and the polishing structure is arranged on one side of the support frame, characterized in that, It further comprises a rotating seat, a supporting block, a supporting rod, a first clamping plate and a second clamping plate; The rotating seat is rotatably arranged on the support frame, the supporting rod is fixed on the rotating seat, the supporting block is slidably arranged on one side of the supporting rod, and is used for pushing the groove pipe to contact the supporting rod for pre-fixing, the first clamping plate and the second clamping plate are slidably arranged above the rotating seat, and are used for fixing the groove pipe; the supporting rod comprises a supporting rod body, two contact plates, two control blocks, two pressure rods, a pressing block and a second screw, two control blocks are slidably arranged in the supporting rod body, the pressing block is slidably arranged on one side of the supporting rod body, one end of each of the two pressure rods is connected with the two control blocks, the other end of each of the two pressure rods is connected with the pressing block, the second screw is rotatably connected with the supporting rod body and is threadedly connected with the pressing block, and two contact plates are rotatably arranged on the two control blocks respectively; the rotating seat comprises a rotating seat body and a rotating motor, the rotating seat body is rotatably arranged on the support frame, the output end of the rotating motor is connected with the rotating seat body, a plurality of clamping grooves are arranged on the rotating seat body, a locking structure is further arranged on the support frame, and the locking structure is used for sliding into the clamping grooves to lock the position of the rotating seat body; the locking structure comprises a clamping plate, a third air cylinder and a supporting plate, the clamping plate is slidably arranged on the support frame and close to the clamping grooves, the output end of the third air cylinder is connected with the clamping plate, and the supporting plate is fixed on the support frame and supports the clamping plate; the locking structure further comprises a positioning plate, a first gear, a second gear and a bevel gear set, the clamping plate is provided with a first rack, the positioning plate has a driving rack, the positioning plate is slidably arranged on one side of the support frame and is used for limiting the groove pipe when the groove pipe is placed, the first gear is rotatably arranged on the support frame and is engaged with the first rack, the bevel gear set is connected with the first gear, the second gear is connected with the bevel gear set and is engaged with the driving rack, when the third air cylinder pushes the clamping plate to slide in the direction away from the clamping grooves, at this time, the first gear drives the bevel gear set to rotate, thereby driving the second gear to rotate, so as to drive the positioning plate to approach the groove pipe, so as to limit the groove pipe, at this time, the groove pipe can be clamped, after the clamping is completed, the third air cylinder pushes the clamping plate to move in the direction close to the clamping grooves, at this time, the positioning plate is away from the groove pipe, so that the polishing structure polishes the end face of the groove pipe.

2. The positioning clamp of claim 1, characterized in that, The resisting block comprises a V-shaped block, a sliding support plate, a first screw rod and a second air cylinder, the sliding support plate is slidingly arranged on one side of the rotating seat body, the output end of the second air cylinder is connected with the sliding support plate, the V-shaped block is slidingly arranged on the sliding support plate, the first screw rod is threadedly connected with the V-shaped block and rotationally connected with the sliding support plate.

3. The positioning clamp of the groove pipe polishing machine according to claim 2, wherein, The resisting block further comprises a reset elastic member, the reset elastic member is arranged between the second air cylinder and the sliding support plate, and an adjusting scale is further arranged on the sliding support plate, the adjusting scale is used for indicating the adjusting trend of the V-shaped block.

4. The positioning clamp of the groove pipe polishing machine according to claim 3, wherein, The first clamping plate comprises a clamping plate body, a control air cylinder and a contact pad, the clamping plate body is slidingly arranged above the rotating seat body, the output end of the control air cylinder is connected with the clamping plate body, and the contact pad is fixed on the clamping plate body.

5. The positioning clamp of the groove pipe polishing machine according to claim 4, wherein, The positioning clamp of the groove pipe polishing machine further comprises a dust baffle, the dust baffle is fixedly connected with the support frame and located on one side of the support frame.

6. A polishing process for a grooved tube polishing machine, characterized by, The positioning clamp of the groove pipe polishing machine.

Images