A multi-degree-of-freedom workpiece grinding and clamping mechanism

Abstract

The present invention discloses a multi-degree-of-freedom workpiece grinding and clamping mechanism, which belongs to the field of workpiece grinding; it comprises a chassis and a hydraulic rod, which is detachably connected to a top plate through a connecting assembly; a support mechanism is provided on one side of the bottom of the top plate, the support mechanism comprises a support frame, and a clamping mechanism for clamping the workpiece is provided inside the support frame; when grinding the edge of the workpiece, the present invention starts the electric telescopic rod, contracts it, releases the locking of the limit block on the clamping plate, and puts the first threaded barrel into an active state; then, the second servo motor is started, the driving rod drives the gear block to rotate, and then drives the clamping disc to rotate through the ring teeth, and finally rotates the second threaded barrel in the support frame, and drives the clamped workpiece to rotate together, so as to accurately grind the edge of the workpiece; and in the whole operation process, the grinding angle of the workpiece is adjusted by accurately controlling the rotation angle of the driving rod, and the unground side is flipped over to facilitate subsequent grinding.

Description

Technical Field

[0001] The present invention relates to the technical field of workpiece grinding, and more particularly to a multi-degree-of-freedom workpiece grinding clamping mechanism. Background Art

[0002] In the fields of material microstructure analysis and precision machining, high-quality preparation of the workpiece surface is key to ensuring observation accuracy. As industrial component design becomes increasingly complex (e.g., multi-curved structures, miniaturized components), higher requirements are placed on the adaptability, processing stability, and operational efficiency of surface treatment equipment. Especially for workpieces with irregular shapes or that require multi-angle processing, achieving precise positioning and uniform force application has become a core challenge in improving preparation quality.

[0003] At present, handheld direct processing is often used in traditional processes, that is, the operator manually presses the workpiece onto the surface of a high-speed rotating polishing turntable, visually judges the contact angle, and adjusts the force based on experience, replacing abrasives or polishing consumables of different particle sizes in sequence to complete the entire processing process; although this method has certain flexibility and is suitable for the processing of some non-standardized samples, it still has many shortcomings in actual operation; for example, pressure fluctuations are prone to occur during manual force application, resulting in uneven force on the surface, affecting processing consistency; especially when processing hard and brittle materials, it is easy to cause edge damage, surface peeling and even thermal damage, seriously affecting sample quality. Summary of the Invention

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a multi-degree-of-freedom workpiece grinding and clamping mechanism, aiming to solve the above technical problems.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] A multi-degree-of-freedom workpiece grinding and clamping mechanism comprises a chassis, cooling nozzles are installed on both sides of the upper surface of the chassis, grinding components are symmetrically arranged on both sides of the interior of the chassis, a hydraulic rod is fixedly connected to the upper surface of the chassis, a connecting component is provided on the top of the hydraulic rod, and the hydraulic rod is detachably connected to a top plate through the connecting component; a supporting mechanism is provided on one side of the bottom of the top plate, and the supporting mechanism includes a supporting frame provided on one side of the bottom of the top plate, and the two ends of the supporting frame are rotatably connected to a first threaded cylinder and a second threaded cylinder respectively, and the outer circumferential surfaces of the first threaded cylinder and the second threaded cylinder are provided with a limit assembly for locking their rotational freedom; and a clamping mechanism for clamping the workpiece is provided inside the supporting frame;

[0007] The clamping mechanism includes a first limiting rod and a second limiting rod respectively threadedly connected to the inside of the first threaded cylinder and the second threaded cylinder, and one end of the first limiting rod and the second limiting rod are respectively fixedly connected to the first clamping plate and the second clamping plate, and an adjustment component for adjusting the grinding angle of the workpiece is provided on one side of the outer surface of the support frame;

[0008] The hydraulic rod drives the top plate to press down, so that the clamped workpiece contacts the grinding assembly, and the limit assembly locks the position of the clamping mechanism. The adjustment assembly then drives the second threaded barrel to rotate, driving the workpiece to flip to adjust the grinding angle.

[0009] As a further solution of the present invention: the limiting assembly includes a first baffle and a clamping plate respectively fixedly connected to the two ends of the outer cylindrical surface of the first threaded cylinder, and the top and bottom of the clamping plate are provided with clamping grooves, the top of the clamping plate is provided with an electric telescopic rod fixedly connected to the support frame, and one end of the electric telescopic rod is fixedly connected to a limiting block for limiting the clamping plate, and the two ends of the outer cylindrical surface of the second threaded cylinder are respectively fixedly connected to a second baffle and a toothed disk.

[0010] As a further solution of the present invention: the adjustment component includes a second servo motor fixedly connected to one side of the outer surface of the support frame, the output end of the second servo motor is fixedly connected to a driving rod, one end of the driving rod is fixedly connected to a gear block, the outer surface of the gear plate is provided with a ring tooth, and the ring tooth is meshed with the gear block.

[0011] As a further solution of the present invention: the polishing assembly includes a polishing table fixedly connected to both sides of the interior of the chassis, the upper surface of the polishing table is covered with sandpaper, the top of the polishing table is threadedly connected to a locking cover for fixing the sandpaper, and the top outer edge of the polishing table is provided with a locking ring that cooperates with the locking cover, and the outer surface of the polishing table is provided with a splash guard fixedly connected to the chassis; the connecting assembly includes a support rod fixedly connected to the top of the hydraulic rod, the top of the support rod is fixedly connected to the locking rod, the top plate is sleeved on the outer cylindrical surface of the support rod, and a support plate fixedly connected to the support rod is provided at the bottom of the top plate, and the outer cylindrical surface of the locking rod is threadedly connected to a locking sleeve for limiting the support plate.

[0012] As a further solution of the present invention: a transmission mechanism fixedly connected to the top plate is provided directly above the support frame, and a driving mechanism for driving the transmission mechanism to change the angle of the support frame is provided on the other side of the bottom of the top plate, the transmission mechanism includes a U-shaped limit frame fixedly connected to one side of the bottom of the top plate, the internal rotation of the U-shaped limit frame is connected to a driven gear, and the internal of the U-shaped limit frame is fixedly connected to a support rod for supporting the driven gear, arc grooves are provided on both sides of the outer surface of the U-shaped limit frame, a support arm is fixedly connected to the top of the support frame, and the support arm passes through the arc groove and is fixedly connected to the driven gear to ensure synchronous movement.

[0013] As a further solution of the present invention: the transmission mechanism also includes a U-shaped bracket fixedly connected to the middle of the bottom of the top plate, the internal rotation of the U-shaped bracket is connected to a main gear, and the main gear is meshed with a driven gear. The main gear and the driven gear are rotated by the driving mechanism to adjust the offset angle of the support frame.

[0014] As a further solution of the present invention: the driving mechanism includes a limit frame fixedly connected to the other side of the top of the top plate, a limit groove is provided on one side of the outer surface of the limit frame, the inner top of the limit frame is fixedly connected to a first servo motor, the output end of the first servo motor is fixedly connected to a threaded rod, the outer cylindrical surface of the threaded rod is threadedly connected to a threaded sleeve, one side of the outer cylindrical surface of the threaded sleeve is fixedly connected to a slide, the slide passes through the limit groove and is fixedly connected to a tooth plate, the top plate is provided with a sliding groove directly above the tooth plate, and the tooth plate is meshed with the main gear.

[0015] As a further solution of the present invention: a spray assembly for flushing impurities on the surface of the workpiece is provided on the inner top of the support frame, and the spray assembly includes a fixed rod fixedly connected to the inner top of the support frame, the outer circular surface of the fixed rod is rotatably connected to a sleeve, the bottom of the sleeve is fixedly connected to a spray plate, and a connecting pipe is fixedly connected to one side of the top of the spray plate, and one end of the connecting pipe passes through the interior of the top plate and is connected to the water outlet end of the cooling nozzle to provide water flow to the spray plate.

[0016] As a further solution of the present invention: one side of the bottom of the top plate is also provided with an adsorption mechanism for adsorbing debris on the surface of the workpiece, the adsorption mechanism includes a supporting disc wrapped around the outer surface of the bottom of the support frame, and the upper surface of the supporting disc is provided with a fixing frame fixedly connected to the top plate, the outer cylindrical surface of the supporting disc is provided with a circular ring seat, the inner wall of the circular ring seat is provided with a circular ring embedded in the outer cylindrical surface of the supporting disc, the threaded rod passes through the bottom of the limit frame and is fixedly connected to a pulley, and the outer cylindrical surface of the circular ring seat and the pulley are jointly provided with a belt.

[0017] As a further solution of the present invention: the bottom of one side of the inner wall of the circular sleeve is fixedly connected to an L-shaped plate, the top of the L-shaped plate is fixedly connected to a recovery tank, the bottom of the recovery tank is fixedly connected to an air pump, and the output end of the air pump is fixedly connected to a straw.

[0018] Compared with the prior art, the above technical solution provided by the present invention has at least the following beneficial effects:

[0019] This solution sets up a supporting mechanism and a clamping mechanism. When it is necessary to grind the edge of the workpiece, the electric telescopic rod is started again to retract it back to the initial state, and the lock of the limit block on the clamping plate is released, so that the first threaded barrel is in an active state; then, the second servo motor is started, and the driving rod drives the gear block to rotate, and then drives the clamping disc to rotate through the ring teeth, and finally the second threaded barrel rotates in the supporting frame, and drives the clamped workpiece to rotate together, so as to accurately grind the edge of the workpiece; and in the entire operation process, the grinding angle of the workpiece is changed by precisely controlling the rotation angle of the driving rod, and the unground side is turned over to facilitate subsequent grinding operations, which solves the problem of uneven surface force caused by pressure fluctuations during manual force application, affecting processing consistency, and the problem of inaccurate grinding accuracy caused by changing the workpiece grinding angle through manual experience.

[0020] By setting up grinding components and connecting components, in order to meet the needs of different processing stages, such as when switching from rough grinding to fine polishing, the operator can first replace the sandpaper on the right grinding table with polishing cloth or other polishing materials; then, loosen the locking sleeve to make the top plate rotatable, rotate the top plate counterclockwise to move the clamped workpiece as a whole to the grinding area where the polishing cloth has been replaced; tighten the locking sleeve again to stably fix the top plate and workpiece in the polishing position, ensuring stability and consistency in the subsequent polishing process.

[0021] By setting up a driving mechanism and a transmission mechanism, in order to further achieve precise grinding of the edge of the workpiece, the first servo motor is started to rotate forward or reverse to adjust the rotation direction of the threaded rod, thereby driving a series of components connected to it to move, so that the support arm and the support frame rotate clockwise or counterclockwise as needed, thereby achieving the effect of precise angle grinding on the edge of the workpiece; and in this process, the arc groove on the U-shaped limit frame is used to limit the swing range of the support arm, thereby ensuring the safety of the operation and the controllability and consistency of the grinding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable one skilled in the art to make and use the invention.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the separation and connection of the polishing assembly and the chassis of the present invention;

[0025] Figure 3 Schematic diagram of the connection between the driving mechanism and the transmission mechanism of the present invention;

[0026] Figure 4 It is a cross-sectional connection diagram of the driving mechanism of the present invention;

[0027] Figure 5 This is a schematic diagram of the connection of the spray assembly of the present invention;

[0028] Figure 6 Schematic diagram of the connection between the supporting mechanism and the clamping mechanism of the present invention;

[0029] Figure 7 Schematic diagram of the connection between the clamping mechanism and the adsorption mechanism of the present invention;

[0030] Figure 8 It is a structural schematic diagram of the adsorption mechanism of the present invention;

[0031] Figure 9 It is a schematic diagram of the split connection between the supporting disc and the annular sleeve of the present invention.

[0032] Reference numerals:

[0033] 1. Chassis; 2. Grinding assembly; 21. Grinding table; 22. Sandpaper; 23. Locking cover; 24. Splash guard; 3. Cooling nozzle;

[0034] 4. Hydraulic rod; 5. Support rod; 51. Locking rod; 52. Support plate; 53. Locking sleeve;

[0035] 6. Top plate; 61. Chute;

[0036] 7. Driving mechanism; 71. Limiting frame; 72. Limiting slot; 73. First servo motor; 74. Threaded rod; 75. Threaded sleeve; 76. Slide plate; 77. Tooth plate;

[0037] 8. Transmission mechanism; 81. U-shaped bracket; 82. Main gear; 83. U-shaped limit bracket; 84. Arc groove; 85. Support rod; 86. Driven gear;

[0038] 9. Support mechanism; 91. Support arm; 92. Support frame; 93. First threaded barrel; 94. First baffle; 95. Clamping plate; 96. Clamping slot; 97. Electric telescopic rod; 98. Limiting block; 99. Second threaded barrel; 910. Gear plate; 911. Second baffle;

[0039] 10. Clamping mechanism; 101. First limiting rod; 102. First clamping plate; 103. Second limiting rod; 104. Second clamping plate; 105. Collar gear; 106. Second servo motor; 107. Drive rod; 108. Gear block;

[0040] 11. Spray assembly; 111. Fixing rod; 112. Sleeve; 113. Spray plate; 114. Connecting pipe;

[0041] 12. Adsorption mechanism; 121. Support disc; 122. Fixed frame; 123. Ring seat; 124. Ring; 125. L-shaped plate; 126. Recovery tank; 127. Air pump; 128. Suction tube; 129. Pulley; 1210. Belt.

[0042] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0043] The following describes in detail a multi-degree-of-freedom workpiece grinding and clamping mechanism provided by the present invention, with reference to the accompanying drawings and specific embodiments. It is also noted that, for the sake of completeness, the following embodiments are best and preferred embodiments, and those skilled in the art may employ alternative implementations for known technologies. Furthermore, the accompanying drawings are provided solely for the purpose of describing the embodiments in greater detail and are not intended to limit the present invention.

[0044] like Figures 1 to 9 As shown, an embodiment of the present invention provides a multi-degree-of-freedom workpiece grinding and clamping mechanism, comprising a chassis 1, cooling nozzles 3 are installed on both sides of the upper surface of the chassis 1, grinding assemblies 2 are symmetrically arranged on both sides of the interior of the chassis 1, a hydraulic rod 4 is fixedly connected to the upper surface of the chassis 1, a connecting assembly is provided on the top of the hydraulic rod 4, and the hydraulic rod 4 is detachably connected to a top plate 6 through the connecting assembly; a support mechanism 9 is provided on one side of the bottom of the top plate 6, and the support mechanism 9 includes a support frame 92 provided on one side of the bottom of the top plate 6, and the two ends of the support frame 92 are rotatably connected to a first threaded cylinder 93 and a second threaded cylinder 99, respectively, and the outer circumferential surfaces of the first threaded cylinder 93 and the second threaded cylinder 99 are provided with a limit assembly for locking their rotational freedom; and a clamping mechanism 10 for clamping a workpiece is provided inside the support frame 92;

[0045] The clamping mechanism 10 includes a first limiting rod 101 and a second limiting rod 103 which are respectively threadedly connected to the first threaded cylinder 93 and the second threaded cylinder 99, and one end of the first limiting rod 101 and the second limiting rod 103 are respectively fixedly connected to a first clamping plate 102 and a second clamping plate 104, and an adjustment component for adjusting the grinding angle of the workpiece is provided on one side of the outer surface of the support frame 92;

[0046] The hydraulic rod 4 drives the top plate 6 to press down, so that the clamped workpiece contacts the grinding assembly 2, and the limit assembly locks the position of the clamping mechanism 10. The adjustment assembly then drives the second threaded cylinder 99 to rotate, causing the workpiece to flip to adjust the grinding angle.

[0047] like Figure 5 、 Figure 6 As shown, the limiting assembly includes a first baffle 94 and a clamping plate 95 respectively fixedly connected to the two ends of the outer circumferential surface of the first threaded cylinder 93, and a clamping groove 96 is provided on the top and bottom of the clamping plate 95. The top of the clamping plate 95 is provided with an electric telescopic rod 97 fixedly connected to the support frame 92, and one end of the electric telescopic rod 97 is fixedly connected to a limiting block 98 for limiting the clamping plate 95. The two ends of the outer circumferential surface of the second threaded cylinder 99 are respectively fixedly connected to a second baffle 911 and a toothed disk 910.

[0048] like Figure 5 、 Figure 6 As shown, the adjustment component includes a second servo motor 106 fixedly connected to one side of the outer surface of the support frame 92, the output end of the second servo motor 106 is fixedly connected to a drive rod 107, one end of the drive rod 107 is fixedly connected to a gear block 108, and the outer surface of the gear plate 910 is provided with a ring tooth 105, and the ring tooth 105 is meshed with the gear block 108.

[0049] In order to solve the problems of uneven force application, easy breakage of hard and brittle materials and difficulty in processing complex curved surfaces caused by traditional manual grinding, the above-mentioned technical solution is now adopted to solve the problems. The above-mentioned technical solution is mainly composed of a support mechanism 9 and a clamping mechanism 10. Before grinding the workpiece, the electric telescopic rod 97 is first started to extend it and the limit block 98 is clamped into the clamping groove 96 to fix the position of the clamping plate 95 to ensure that the first threaded cylinder 93 does not move laterally or rotate. Then, the workpiece to be processed is placed between the first clamping plate 102 and the second clamping plate 104, and the first limit rod 101 is rotated to make the first clamping plate 102 approach and fit the workpiece; then, the second limit rod 103 is rotated to allow the second clamping plate 104 to approach and fit the workpiece from the other side. This double-sided clamping method ensures that the workpiece is firmly clamped; in this process, the first baffle 94 and the clamping plate 95 work together to prevent the first threaded cylinder 93 from unnecessary rotation or movement during the clamping operation, thereby ensuring stability during the clamping process. At the same time, the second baffle 911 and the toothed disc 910 also play a similar role. They ensure that the second threaded barrel 99 does not move laterally or rotate during the clamping operation. In particular, the ring teeth 105 sleeved on the outer surface of the toothed disc 910 further fix the position of the toothed disc 910, so that when the second limit rod 103 is adjusted, the second threaded barrel 99 remains stable, thereby ensuring the reliability of the entire clamping system. After the workpiece is clamped, the hydraulic rod 4 is started to contract and drive the top plate 6 to descend, so that the bottom surface of the workpiece contacts the grinding assembly 2. At the same time, the external water pump is started to transport cooling water to the grinding assembly 2 through the cooling nozzle 3, which effectively reduces the heat generated during the grinding process, reduces equipment damage and improves the surface quality of the workpiece; and when the edge of the workpiece needs to be polished, the electric telescopic rod 97 is started again to contract it back to the initial state, and the limit block 98 is released from the lock of the card plate 95, so that the first threaded cylinder 93 is in an active state; then, the second servo motor 106 is started, and the driving rod 107 drives the gear block 108 to rotate, and then drives the card plate 910 to rotate through the ring teeth 105, and finally makes the second threaded cylinder 99 rotate in the support frame 92, and drives the clamped workpiece to rotate together, so as to accurately polish the edge of the workpiece.During the entire operation, the grinding angle of the workpiece is changed by precisely controlling the rotation angle of the drive rod 107, and the unground side is turned over for subsequent grinding operations, thereby solving the problem of pressure fluctuations that are prone to occur during manual force application, resulting in uneven surface force and affecting processing consistency, and the problem of inaccurate grinding accuracy due to changing the workpiece grinding angle through manual experience; and the combined design of the second servo motor 106 driving the gear block 108 and the card tooth plate 910 is used to achieve fine adjustment of any angle of the workpiece, solve the problem of complex curved surface workpieces that are difficult to contact and grind, improve processing accuracy, and the entire clamping and grinding process is highly automated, reducing manual intervention, which not only improves work efficiency but also reduces the risk of errors caused by human factors.

[0050] like Figure 1 、 Figure 2 As shown, the grinding assembly 2 includes a grinding table 21 fixedly connected to both sides of the interior of the chassis 1, the upper surface of the grinding table 21 is covered with sandpaper 22, the top of the grinding table 21 is threadedly connected to a locking cover 23 for fixing the sandpaper 22, and the top outer edge of the grinding table 21 is provided with a locking ring that cooperates with the locking cover 23, and the outer surface of the grinding table 21 is provided with a splash guard 24 fixedly connected to the chassis 1; the connecting assembly includes a support rod 5 fixedly connected to the top of the hydraulic rod 4, the top of the support rod 5 is fixedly connected to the locking rod 51, the top plate 6 is sleeved on the outer cylindrical surface of the support rod 5, and a support plate 52 fixedly connected to the support rod 5 is provided at the bottom of the top plate 6, and the outer cylindrical surface of the locking rod 51 is threadedly connected to a locking sleeve 53 for limiting the support plate 52.

[0051] To ensure stability during the grinding process, a locking cover 23 is provided on the top of the grinding table 21. The locking cover 23 is installed on the grinding table 21 by a threaded connection, and a locking ring is provided on its outer edge to cooperate with it, thereby achieving effective compression and positioning of the sandpaper 22. This design effectively solves the problem of sandpaper easily sliding, deflecting or even falling off in traditional grinding equipment, significantly improving the stability and processing quality of the grinding process. In addition, a splash guard 24 is provided on the outer surface of the grinding table 21 to block debris, dust and cooling water droplets splashed during the grinding process. This not only helps to keep the working environment clean, but also improves operational safety and avoids personal injury or equipment contamination caused by debris splashing. When the sandpaper 22 needs to be replaced, the operator only needs to rotate the locking cover 23 in the opposite direction to remove it from the grinding table 21. Then, the old sandpaper can be easily removed and replaced with a new one. The operation is simple and quick, greatly improving the equipment maintenance efficiency and ease of use. Furthermore, in order to meet the needs of different processing stages, such as when switching from rough grinding to fine polishing, the operator can first replace the sandpaper 22 on the right grinding table 21 with a polishing cloth or other polishing materials; then, loosen the locking sleeve 53 to put the top plate 6 in a rotatable state, rotate the top plate 6 counterclockwise to drive the clamped workpiece to move as a whole to the grinding area where the polishing cloth has been replaced; tighten the locking sleeve 53 again to stably fix the top plate 6 and the workpiece in the polishing position, ensuring stability and consistency during the subsequent polishing process. During the above operation, the rotation and locking of the top plate 6 are controlled by the locking sleeve 53, so that the same equipment can realize the "grinding-polishing" function switch without removing the fixture, which greatly simplifies the processing flow and improves the flexibility and practicality of the equipment; at the same time, the workpiece is always in the same clamping state during the entire grinding and polishing process, avoiding positioning errors caused by multiple disassembly and assembly, and significantly improving the surface quality and processing consistency of the final product.

[0052] like Figure 3 、 Figure 4 、 Figure 5 As shown, a transmission mechanism 8 fixedly connected to the top plate 6 is provided directly above the support frame 92, and a driving mechanism 7 for driving the transmission mechanism 8 to change the angle of the support frame 92 is provided on the other side of the bottom of the top plate 6. The transmission mechanism 8 includes a U-shaped limit frame 83 fixedly connected to one side of the bottom of the top plate 6, the internal rotation of the U-shaped limit frame 83 is connected to a driven gear 86, and the internal fixed connection of the U-shaped limit frame 83 is a support rod 85 for supporting the driven gear 86, arc grooves 84 are provided on both sides of the outer surface of the U-shaped limit frame 83, and a support arm 91 is fixedly connected to the top of the support frame 92, and the support arm 91 passes through the arc groove 84 and is fixedly connected to the driven gear 86 to ensure synchronous movement.

[0053] like Figure 4 、 Figure 5As shown, the transmission mechanism 8 also includes a U-shaped bracket 81 fixedly connected to the middle of the bottom of the top plate 6. The internal rotation of the U-shaped bracket 81 is connected to the main gear 82, and the main gear 82 is meshed with the driven gear 86. The main gear 82 and the driven gear 86 are rotated by the driving mechanism 7 to adjust the offset angle of the support frame 92.

[0054] like Figure 3 、 Figure 4 As shown, the driving mechanism 7 includes a limit frame 71 fixedly connected to the other side of the top of the top plate 6, and a limit groove 72 is provided on one side of the outer surface of the limit frame 71. The inner top of the limit frame 71 is fixedly connected to the first servo motor 73, and the output end of the first servo motor 73 is fixedly connected to a threaded rod 74. The outer cylindrical surface of the threaded rod 74 is threadedly connected to a threaded sleeve 75, and one side of the outer cylindrical surface of the threaded sleeve 75 is fixedly connected to a slide plate 76. The slide plate 76 passes through the limit groove 72 and is fixedly connected to a tooth plate 77. The top plate 6 is provided with a slide groove 61 directly above the tooth plate 77, and the tooth plate 77 is meshed with the main gear 82.

[0055] In order to achieve precise grinding of the edge of the workpiece, first, the second servo motor 106 is used to drive the clamped workpiece to flip so that the edge to be ground faces the grinding assembly 2, so that subsequent processing can proceed smoothly; then the electric telescopic rod 97 is started to extend it and drive the limit block 98 to engage in the slot 96 on the clamping plate 95, thereby performing a secondary limit fixation on the first threaded cylinder 93 to ensure that it will not rotate or shift accidentally during the grinding process; at the same time, the second threaded cylinder 99 remains in place to maintain the stability of the overall structure. The first servo motor 73 is driven by the first servo motor 73 to rotate clockwise, and the second servo motor 73 is driven by the first servo motor 73 to rotate clockwise. During this process, the arc groove 84 on the U-shaped limit frame 83 plays a key limiting role. Since the support arm 91 passes through the arc groove 84, it is constrained by the groove body during the rotation process and can only swing within the set angle range, avoiding excessive wear of the workpiece or deviation from the grinding area due to excessive deflection angle. This design not only improves the safety of equipment operation, but also ensures the controllability and consistency of the grinding process. When it is necessary to grind the edge of the other side of the workpiece, it is only necessary to reversely start the first servo motor 73 to reverse it, drive the threaded rod 74 to rotate in the opposite direction, and then move the threaded sleeve 75, slide plate 76 and tooth plate 77 upward. The upward movement of the tooth plate 77 causes the main gear 82 to rotate counterclockwise, and similarly drives the support arm 91 and support frame 92 to rotate counterclockwise through the driven gear 86 to complete the positioning and grinding of the edge of the other side of the workpiece. Through the above-mentioned linkage mechanism, precise control of the grinding angle of the workpiece edge is achieved, solving the problems of uneven force, difficult angle adjustment and low efficiency in traditional manual grinding, and significantly improving the grinding quality and equipment automation level.

[0056] like Figure 4 、 Figure 5 、 Figure 6As shown, a spray assembly 11 for flushing impurities on the surface of the workpiece is provided at the inner top of the support frame 92. The spray assembly 11 includes a fixed rod 111 fixedly connected to the inner top of the support frame 92. The outer circular surface of the fixed rod 111 is rotatably connected to a sleeve 112. The bottom of the sleeve 112 is fixedly connected to a spray plate 113. A connecting pipe 114 is fixedly connected to one side of the top of the spray plate 113, and one end of the connecting pipe 114 passes through the interior of the top plate 6 and is connected to the water outlet end of the cooling nozzle 3 to provide water flow to the spray plate 113.

[0057] During the grinding process of the workpiece, the high-speed friction between the sandpaper 22 and the workpiece surface will cause the local temperature of the workpiece to rise rapidly, which may not only affect the physical properties of the workpiece material, but also have an adverse effect on the stability and service life of the grinding equipment. In addition, metal debris or dust generated during the grinding process is also easy to adhere to the surface of the workpiece, thereby affecting the uniformity and processing quality of subsequent grinding. Therefore, when grinding begins, the external water pump is started, and the coolant flows out from the cooling nozzle 3 and is transported to the inside of the spray plate 113 through the connecting pipe 114. It is then evenly sprayed onto the workpiece surface from the multiple nozzles set at the bottom of the spray plate 113. On the one hand, the coolant effectively reduces the high temperature generated by friction, preventing the workpiece from overheating and deformation or damage to equipment components due to temperature rise. On the other hand, the coolant spraying process can also wash away the debris and dust attached to the surface of the workpiece, preventing these impurities from interfering with the grinding accuracy, thereby ensuring the stability and consistency of the grinding quality. In addition, since the spray plate 113 is rotatably connected to the fixed rod 111 through the sleeve 112, when the workpiece is flipped or the angle is adjusted, the spray plate 113 can automatically adjust its direction and always maintain the best relative position with the workpiece surface to ensure that the cooling and cleaning effects are not affected.

[0058] like Figure 3 、 Figure 7 、 Figure 8 、 Figure 9 As shown, one side of the bottom of the top plate 6 is also provided with an adsorption mechanism 12 for adsorbing debris on the surface of the workpiece, and the adsorption mechanism 12 includes a support disc 121 wrapped around the outer surface of the bottom of the support frame 92, and the upper surface of the support disc 121 is provided with a fixing frame 122 fixedly connected to the top plate 6, the outer cylindrical surface of the support disc 121 is provided with a circular ring seat 123, and the inner wall of the circular ring seat 123 is provided with a circular ring 124 embedded in the outer cylindrical surface of the support disc 121, the threaded rod 74 passes through the bottom of the limit frame 71 and is fixedly connected to a pulley 129, and the outer cylindrical surface of the circular ring seat 123 and the pulley 129 are jointly provided with a belt 1210.

[0059] like Figure 8 、 Figure 9As shown, the bottom of one side of the inner wall of the circular sleeve 123 is fixedly connected to an L-shaped plate 125, the top of the L-shaped plate 125 is fixedly connected to a recovery tank 126, the bottom of the recovery tank 126 is fixedly connected to an air pump 127, and the output end of the air pump 127 is fixedly connected to a suction pipe 128.

[0060] When the drive mechanism 7 and the transmission mechanism 8 are used to grind the clamped workpiece, the first servo motor 73 is started, and its driving force causes the threaded rod 74 to rotate. Since the threaded rod 74 is fixedly connected to the pulley 129, the pulley 129 rotates accordingly and drives the annular sleeve 123 to rotate synchronously on the outer surface of the support disc 121 through the belt 1210; in this process, the ring 124 is embedded in the groove on the outer surface of the support disc 121, ensuring the stability of the rotation of the annular sleeve 123 and preventing it from detaching from the support disc 121. At the same time, the annular sleeve 123 drives the recovery tank 126, the air pump 127 and the suction pipe 128 to perform circular motion around the clamped workpiece through the L-shaped plate 125; and in order to prevent the debris generated during the grinding process from affecting the grinding effect, the air pump 127 is started while the annular sleeve 123 rotates, so that the suction pipe 128 can absorb and recover the debris on the surface of the workpiece in real time, and collect it in the recovery tank 126. This operation process not only absorbs debris and dust in real time to prevent it from interfering with the grinding process and ensuring the uniformity and smoothness of the workpiece surface, but also automatically collects debris, reduces the cleaning burden of the operator, and improves work efficiency; at the same time, it effectively prevents debris from splashing, reduces wear on equipment and pollution to the working environment, and reduces dust particles suspended in the air, improves the working environment, and ensures the health and safety of the operator.

[0061] When the present invention is in use, first, the electric telescopic rod 97 is activated to extend it and the limit block 98 is engaged into the slot 96, thereby fixing the position of the clamping plate 95 and ensuring that the first threaded barrel 93 does not move laterally or rotate. Next, the workpiece to be processed is placed between the first clamping plate 102 and the second clamping plate 104, and the first clamping plate 102 is moved closer to and in contact with the workpiece by rotating the first limit rod 101; then, the second limit rod 103 is rotated to allow the second clamping plate 104 to approach and contact the workpiece from the other side, achieving double-sided clamping to ensure that the workpiece is firmly clamped. During this process, the first baffle 94 and the clamping plate 95 work together to prevent the first threaded barrel 93 from unnecessary rotation or movement during the clamping operation, thereby ensuring stability during the clamping process. At the same time, the second baffle 911 and the toothed disc 910 also play a similar role, ensuring that the second threaded barrel 99 does not move laterally or rotate during the clamping operation. In particular, the collar teeth 105 provided on the outer surface of the toothed disc 910 further fix the position of the toothed disc 910, so that when the second limit rod 103 is adjusted, the second threaded barrel 99 remains stable, thereby ensuring the reliability of the entire clamping system. After the workpiece is clamped, the hydraulic rod 4 is started to contract and drive the top plate 6 downward, so that the bottom surface of the workpiece contacts the grinding assembly 2. At the same time, the external water pump is started to deliver cooling water to the grinding assembly 2 through the cooling nozzle 3, effectively reducing the heat generated during the grinding process, reducing equipment damage and improving the surface quality of the workpiece. When the edge of the workpiece needs to be polished, the electric telescopic rod 97 is started again, and it is retracted back to the initial state, and the limit block 98 is released from the locking of the card plate 95, so that the second threaded barrel 99 is in an active state. Then, the second servo motor 106 is started, and the drive rod 107 drives the gear block 108 to rotate, which in turn drives the toothed disc 910 to rotate through the collar teeth 105, and finally causes the second threaded cylinder 99 to rotate within the support frame 92, driving the clamped workpiece to rotate together, so as to accurately grind the edge of the workpiece. At the beginning of grinding, the external water pump is started, and the coolant flows out from the cooling nozzle 3 and is transported to the inside of the spray plate 113 through the connecting pipe 114. It is then evenly sprayed onto the surface of the workpiece from the multiple nozzles provided at the bottom of the spray plate 113. On the one hand, the coolant effectively reduces the high temperature generated by friction, preventing the workpiece from overheating and deformation or damage to equipment components due to temperature increase; on the other hand, the coolant spraying process can also wash away debris and dust attached to the surface of the workpiece, preventing these impurities from interfering with the grinding accuracy, thereby ensuring the stability and consistency of the grinding quality. In addition, when the drive mechanism 7 and the transmission mechanism 8 are used to grind the clamped workpiece, the first servo motor 73 is started, and its driving force causes the threaded rod 74 to rotate. Since the threaded rod 74 is fixedly connected to the pulley 129, the pulley 129 rotates accordingly, and drives the annular sleeve 123 to rotate synchronously on the outer surface of the support disc 121 through the belt 1210.During this process, ring 124 is embedded in a groove on the outer surface of support disc 121, ensuring the stability of the rotation of ring sleeve 123. Simultaneously, ring sleeve 123, via L-shaped plate 125, drives recovery tank 126, air pump 127, and suction pipe 128 in a circular motion around the clamped workpiece. Activating air pump 127 causes suction pipe 128 to absorb and recover debris from the workpiece surface in real time, collecting it in recovery tank 126. This not only reduces the cleaning burden on the operator, but also improves work efficiency, enhances the working environment, and protects the operator's health and safety.

[0062] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. To provide a thorough understanding of the present invention, specific details are described in detail below in connection with the preferred embodiments of the present invention, but those skilled in the art will be able to fully understand the present invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0063] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A multi-degree-of-freedom workpiece grinding and clamping mechanism, comprising a chassis, with cooling nozzles installed on both sides of the upper surface of the chassis; characterized in that: Grinding assemblies are symmetrically arranged on both sides of the chassis. A hydraulic rod is fixedly connected to the upper surface of the chassis. A connecting assembly is provided on the top of the hydraulic rod. The hydraulic rod is detachably connected to the top plate through the connecting assembly. A supporting mechanism is provided on the bottom side of the top plate. The supporting mechanism includes a supporting frame provided on the bottom side of the top plate. The two ends of the supporting frame are rotatably connected to the first threaded cylinder and the second threaded cylinder respectively. The outer circumferences of the first threaded cylinder and the second threaded cylinder are both provided with a limit assembly for locking their rotational freedom. A clamping mechanism for clamping a workpiece is provided inside the supporting frame. The clamping mechanism includes a first limiting rod and a second limiting rod respectively threadedly connected to the inside of the first threaded cylinder and the second threaded cylinder, and one end of the first limiting rod and the second limiting rod are respectively fixedly connected to the first clamping plate and the second clamping plate, and an adjustment component for adjusting the grinding angle of the workpiece is provided on one side of the outer surface of the support frame; A transmission mechanism fixedly connected to the top plate is provided directly above the support frame, and a driving mechanism for driving the transmission mechanism to change the angle of the support frame is provided on the other side of the bottom of the top plate, the driving mechanism includes a limit frame fixedly connected to the other side of the top of the top plate, a limit groove is provided on one side of the outer surface of the limit frame, a first servo motor is fixedly connected to the inner top of the limit frame, and a threaded rod is fixedly connected to the output end of the first servo motor; One side of the bottom of the top plate is also provided with an adsorption mechanism for adsorbing debris on the surface of the workpiece, the adsorption mechanism includes a supporting disc wrapped around the outer surface of the bottom of the supporting frame, and the upper surface of the supporting disc is provided with a fixing frame fixedly connected to the top plate, the outer circumferential surface of the supporting disc is sleeved with a circular ring seat, the inner wall of the circular ring seat is provided with a circular ring embedded in the outer circumferential surface of the supporting disc, the threaded rod passes through the bottom of the limit frame and is fixedly connected to a pulley, and the circular ring seat and the outer circumferential surface of the pulley are jointly sleeved with a belt; the bottom of one side of the inner wall of the circular ring seat is fixedly connected to an L-shaped plate, the top of the L-shaped plate is fixedly connected to a recovery tank, the bottom of the recovery tank is fixedly connected to an air pump, and the output end of the air pump is fixedly connected to a suction pipe; The hydraulic rod drives the top plate downward to make the clamped workpiece contact the grinding assembly, and the limit assembly locks the clamping mechanism position. The adjustment assembly then drives the second threaded barrel to rotate, causing the workpiece to flip to adjust the grinding angle.

2. A multi-degree-of-freedom workpiece grinding and clamping mechanism according to claim 1, characterized in that: The limiting assembly includes a first baffle and a clamping plate respectively fixedly connected to the two ends of the outer cylindrical surface of the first threaded cylinder, and a clamping groove is provided on the top and bottom of the clamping plate. An electric telescopic rod fixedly connected to the support frame is provided on the top of the clamping plate, and one end of the electric telescopic rod is fixedly connected to a limiting block for limiting the clamping plate. The two ends of the outer cylindrical surface of the second threaded cylinder are respectively fixedly connected to a second baffle and a toothed disk.

3. A multi-degree-of-freedom workpiece grinding and clamping mechanism according to claim 2, characterized in that: The adjustment component includes a second servo motor fixedly connected to one side of the outer surface of the support frame, the output end of the second servo motor is fixedly connected to a driving rod, one end of the driving rod is fixedly connected to a gear block, the outer surface of the gear plate is provided with a ring tooth, and the ring tooth is meshed with the gear block.

4. The multi-degree-of-freedom workpiece grinding and clamping mechanism according to claim 3, characterized in that: The grinding assembly includes a grinding table fixedly connected to both sides of the interior of the chassis, the upper surface of the grinding table is covered with sandpaper, the top of the grinding table is threadedly connected to a locking cover for fixing the sandpaper, and the top outer edge of the grinding table is provided with a locking ring that cooperates with the locking cover, and the outer surface of the grinding table is provided with a splash guard fixedly connected to the chassis; the connecting assembly includes a support rod fixedly connected to the top of the hydraulic rod, the top of the support rod is fixedly connected to the locking rod, the top plate is sleeved on the outer cylindrical surface of the support rod, and a support plate fixedly connected to the support rod is provided at the bottom of the top plate, and the outer cylindrical surface of the locking rod is threadedly connected to a locking sleeve for limiting the support plate.

5. The multi-degree-of-freedom workpiece grinding and clamping mechanism according to claim 4, characterized in that: The transmission mechanism includes a U-shaped limit frame fixedly connected to one side of the bottom of the top plate, the internal rotation of the U-shaped limit frame is connected to the driven gear, and the internal of the U-shaped limit frame is fixedly connected to a support rod for supporting the driven gear, arc grooves are provided on both sides of the outer surface of the U-shaped limit frame, and a support arm is fixedly connected to the top of the support frame, and the support arm passes through the arc groove and is fixedly connected to the driven gear to ensure synchronous movement.

6. The multi-degree-of-freedom workpiece grinding and clamping mechanism according to claim 5, characterized in that: The transmission mechanism also includes a U-shaped bracket fixedly connected to the middle of the bottom of the top plate. The internal rotation of the U-shaped bracket is connected to a main gear, and the main gear is meshed with a driven gear. The main gear and the driven gear are rotated by the driving mechanism to adjust the offset angle of the support frame.

7. The multi-degree-of-freedom workpiece grinding and clamping mechanism according to claim 6, characterized in that: The outer cylindrical surface of the threaded rod is threadedly connected with a threaded sleeve, one side of the outer cylindrical surface of the threaded sleeve is fixedly connected with a slide plate, the slide plate passes through the limiting groove and is fixedly connected with a toothed plate, the top plate is located directly above the toothed plate and has a sliding groove, and the toothed plate is meshed with the main gear.

8. The multi-degree-of-freedom workpiece grinding and clamping mechanism according to claim 7, characterized in that: A spray assembly for flushing impurities on the surface of the workpiece is provided at the inner top of the support frame. The spray assembly includes a fixed rod fixedly connected to the inner top of the support frame. The outer circular surface of the fixed rod is rotatably connected to a sleeve. The bottom of the sleeve is fixedly connected to a spray plate. A connecting pipe is fixedly connected to one side of the top of the spray plate, and one end of the connecting pipe passes through the interior of the top plate and is connected to the water outlet end of the cooling nozzle to provide water flow to the spray plate.

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