Clamping device for accurate grinding of rack

Abstract

The invention relates to the technical field of racks, and discloses a rack accurate grinding clamping device which comprises a machining table, a square groove is formed in the machining table, the inner wall of the square groove is fixedly connected with one ends of four first connecting rods, and the other ends of the four first connecting rods are fixedly connected with a containing table. A first vertical plate is fixedly connected to the top of the machining table, a discharging pipe is arranged at the bottom of the machining table in a communicating mode, a clamping mechanism is arranged at the top of the machining table, the outer wall of an arc rack is limited and fixed through a first limiting wheel, a second limiting wheel and a third limiting wheel, and the stability of the annular rack is guaranteed; and meanwhile, the first limiting plate is used for limiting and clamping the notch of the arc-shaped rack. According to the multi-point limiting mode, the rack can be restrained in multiple directions, the rack is effectively prevented from shaking or shifting in the machining process, the stability of the rack in the accurate grinding process is remarkably improved, and therefore the machining precision and quality are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of racks, in particular to a clamping device for fine grinding of racks. Background Art

[0002] Racks and gears, as a universal mechanical component, are widely used in various transmission mechanical equipment in industrial production. A rack is a special gear with teeth distributed on a bar-shaped body. It is a bar-shaped part that matches the gear and can be regarded as a section of a gear with infinite diameter.

[0003] For example, publication number CN222679715U discloses a clamping device for rack fine grinding, comprising a workbench, a support leg, a drainage trough, a chip discharge port, a water guide plate, a chip collection housing, a movable trough, a hydraulic rod 1, a connecting rod, a motor, a hydraulic rod 2, a clamping plate, a movable block, a water storage tank, a transport pump, a transport pipe, a connecting bracket, a rotating arm, a screw, a sliding rod, and a cleaning plate. The clamping device for rack fine grinding fixes the rack to be processed between two clamping plates, and the motor can drive the rack to rotate, thereby expanding the grinding range of the rack and avoiding the need for back-and-forth disassembly of the rack. At the same time, the transport pump transports water in the water storage tank through the transport pipe to flush the surface of the rack, thereby removing waste chips generated by the grinding of the rack surface. The waste chips are collected in the chip collection housing and discharged uniformly through the chip discharge ports on both sides, thereby preventing the waste chips from being discharged arbitrarily and causing environmental pollution.

[0004] However, due to the different shapes of racks, some racks are arc-shaped, so it is difficult to stably clamp the arc-shaped racks through the clamping plates on both sides, which will affect the subsequent rack fine grinding. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a clamping device for rack fine grinding in view of the above-mentioned deficiencies in the prior art.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a clamping device for rack fine grinding, comprising a processing table, the interior of the processing table is provided with a square groove, the inner wall of the square groove is fixedly connected to one end of four first connecting rods, and the other end of the four first connecting rods is fixedly connected to the placing table, the top of the processing table is fixedly connected to the first vertical plate, the bottom of the processing table is connected and provided with a discharge pipe, the top of the processing table is provided with a clamping mechanism, the clamping mechanism includes an electric push rod, the electric push rod is fixedly connected to the right side of the first vertical plate, the right side of the electric push rod is fixedly connected to the connecting plate, the top of the processing table is fixedly connected to the support plate, the connecting plate is slidably connected to the top of the support plate, the right side of the connecting plate is provided with a first limiting wheel, the top of the processing table is fixedly connected to two second vertical plates The cam is secured to the left of the second gear and is adapted to engage the cam of the second gear when the cam is engaged with the gear train, thereby enabling the cam to engage with the gear train on the cam and engage with the gear train on the cam.

[0007] Preferably, an arc groove is provided on the top of the placement table, a fixed block is fixedly connected to the inside of the arc groove, two sliders are slidably connected to the inside of the arc groove, and a first spring is fixedly connected between one side of the two sliders and the fixed block respectively.

[0008] Preferably, the tops of the two sliders are respectively fixedly connected to a first limit plate, the first limit plate contacts the arc rack, and the inner sides of the first limit plates on both sides are respectively fixedly connected to a resistance rod, the top of the connecting plate is fixedly connected to a first folding rod, and the end of the first folding rod away from the connecting plate is fixedly connected to an inclined block, and the inclined block contacts the resistance rod, and when the connecting plate moves to the right, it will drive the first folding rod to move to the right, and the rightward movement of the first folding rod can drive the inclined block to move to the right, and under the resistance action of the inclined block, the resistance rods on the front and rear sides expand outward at the same time, thereby driving the first limit plates on the front and rear sides to move outward at the same time, and the notch of the arc rack is limited and clamped by the first limit plate to maintain the stability of the annular rack.

[0009] Preferably, an auxiliary mechanism is provided on the top of the processing table, and the auxiliary mechanism includes a second folding rod, the second folding rod is fixedly connected to the bottom of the connecting plate, the right side of the second folding rod is fixedly connected to the first interference block, the right side of the first connecting rod is fixedly connected to the first fixed plate, the right side of the first fixed plate is fixedly connected to the first ring plate, the top of the first ring plate is fixedly connected to the telescopic rod, the outer wall of the telescopic rod is provided with a second spring, the top of the telescopic rod is fixedly connected to the second ring plate, the top of the second ring plate is fixedly connected to the second interference block, and the first interference block is in contact with the second interference block.

[0010] Preferably, a suction cup is passed through the interior of the placing table and extends to the bottom thereof, and a piston rod is movably connected to the interior of the suction cup, and a sealing gasket is provided between the piston rod and the suction cup, and the piston rod is fixedly connected to the top of the second ring plate, and the suction cup contacts the bottom of the arc-shaped rack. When the connecting plate moves to the right, it will drive the second folding rod to move to the right, thereby driving the first resistance block to move to the right. When the first resistance block moves to the right, it will resist the second resistance block. Under the resistance action, the second resistance block moves downward, thereby driving the second ring plate to move downward. When the second ring plate moves downward, it will drive the piston rod to move downward. After the piston rod descends, the air pressure inside the suction cup will decrease. After the air pressure inside the suction cup decreases, the external atmospheric pressure will try to press the suction cup to the contact surface, thereby generating adsorption force, thereby enhancing the adsorption force of the suction cup on the annular rack.

[0011] Preferably, the outer wall of the second ring plate is fixedly connected to a second limit plate, and the second limit plate is an inverted L-shape. The second limit plate fits the arc-shaped rack. When the second ring plate descends, the second limit plate is driven down at the same time, and the top of the annular rack is limited by the second limit plate, forming a double constraint of the upper and lower parts, ensuring that the rack always remains stable during the processing process.

[0012] Preferably, a dust removal mechanism is provided on the top of the processing table, and the dust removal mechanism includes a third vertical plate, the third vertical plate is fixedly connected to the top of the processing table, the back of the third vertical plate is fixedly connected to the second fixed plate, the bottom of the second fixed plate is fixedly connected to several air bags, the outside of the air bag is connected with an air blowing pipe, the outer wall of the second ring plate is fixedly connected to one end of the third folding rod, the other end of the third folding rod is fixedly connected to a baffle, and the baffle is provided at the bottom of the air bag. When the processing of the annular rack is completed, the limit of the annular rack needs to be released, so the second ring plate will move upward, and when the second ring plate moves up, the baffle will be driven to move upward by the third folding rod, and when the baffle moves upward, it will squeeze the air bag, so that the gas is blown to the surface of the rack through the air blowing pipe, which can effectively blow away the dust on the rack, avoid dust accumulation affecting the processing accuracy and equipment life, and dust will fall into the inside of the discharge pipe.

[0013] Preferably, the bottom of the third folding rod is fixedly connected to a vertical rod, the bottom of the vertical rod is fixedly connected to a third spring, and the bottom of the third spring is fixedly connected to a knocking ball. When the next annular rack is limited and fixed again, the third folding rod will be driven to descend, thereby driving the third spring at the bottom of the vertical rod to descend, and the inner wall of the discharge pipe will be knocked by the knocking ball to prevent dust from sticking to the inner wall of the discharge pipe, ensuring smooth discharge of dust, further optimizing the processing environment, and improving the cleanliness and service life of the equipment.

[0014] The present invention adopts the above technical solution, which can bring the following beneficial effects: 1. This rack fine grinding clamping device uses first, second, and third limiting wheels to position and secure the outer wall of the arc rack, ensuring the stability of the annular rack. A first limiting plate simultaneously clamps the notch of the arc rack. This multi-point limiting method constrains the rack from multiple directions, effectively preventing it from shaking or shifting during machining. This significantly improves rack stability during fine grinding, thereby ensuring machining accuracy and quality.

[0015] 2. This rack fine grinding clamping device significantly increases suction by pulling the piston rod downward, reducing the air pressure inside the suction cup. This significantly increases suction, securing the curved rack and further enhancing its stability. Simultaneously, the lowering of the second limit plate secures the top of the curved rack, creating a dual constraint, ensuring the rack remains stable during machining and preventing loosening or deformation due to external forces, further improving machining reliability and consistency.

[0016] 3. This rack fine grinding clamping device squeezes the airbag, forcing air through the air pipe onto the rack surface, effectively removing dust from the rack, preventing dust accumulation that could affect machining accuracy and equipment life. The blown dust is then discharged through the feed tube. A tapping ball taps the inner wall of the feed tube, preventing dust from sticking and ensuring smooth discharge. This further optimizes the machining environment and improves equipment cleanliness and service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of the structure of the present invention; Figure 2 This is a first cross-sectional view of the structure of the present invention; Figure 3 This is an enlarged view of structure A of the present invention; Figure 4 This is a second cross-sectional view of the structure of the present invention; Figure 5 This is an enlarged view of structure B of the present invention; Figure 6 This is a third cross-sectional view of the structure of the present invention; Figure 7 It is an enlarged view of structure C of the present invention.

[0018] In the figure: 1, processing table; 2, first connecting rod; 3, placing table; 4, first vertical plate; 5, clamping mechanism; 511, electric push rod; 512, support plate; 513, connecting plate; 514, first limiting wheel; 515, second vertical plate; 516, second limiting wheel; 517, third limiting wheel; 518, arc groove; 519, first spring; 520, slider; 521, first limiting plate; 522, resistance rod; 523, first folding rod; 524, oblique block; 525, second connecting rod; 6, auxiliary mechanism; 611, second Folding rod; 612, first resistance block; 613, first fixed plate; 614, first ring plate; 615, telescopic rod; 616, second spring; 617, second ring plate; 618, second resistance block; 619, suction cup; 620, piston rod; 621, second limit plate; 7, dust removal mechanism; 711, third vertical plate; 712, second fixed plate; 713, air bag; 714, blowing pipe; 715, third folding rod; 716, baffle; 717, vertical rod; 718, third spring; 719, knocking ball; 8, discharge pipe. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-7, one embodiment of the present invention is: a clamping device for rack fine grinding, comprising a processing table 1, a square groove is opened inside the processing table 1, one end of four first connecting rods 2 is fixedly connected to the inner wall of the square groove, the other end of the four first connecting rods 2 is fixedly connected to the placing table 3, the top of the processing table 1 is fixedly connected to the first vertical plate 4, the bottom of the processing table 1 is connected to the feeding pipe 8, the top of the processing table 1 is provided with a clamping mechanism 5, the clamping mechanism 5 includes an electric push rod 511, the electric push rod 511 is fixedly connected to the right side of the first vertical plate 4, the right side of the electric push rod 511 is fixedly connected to the connecting plate 513, the top of the processing table 1 is fixedly connected to the supporting plate 512, the connecting plate 513 is slidably connected to the top of the supporting plate 512, and the right side of the connecting plate 513 A first limiting wheel 514 is provided on the side, and two second vertical plates 515 are fixedly connected to the top of the processing table 1. A second connecting rod 525 is fixedly connected to one side of the two second vertical plates 515. A second limiting wheel 516 and a third limiting wheel 517 are respectively provided on the left and right sides of the second connecting rod 525. The arc rack is placed on the placement table 3, and the electric push rod 511 is started. The electric push rod 511 pushes the connecting plate 513, and the connecting plate 513 moves to the right under the pushing action of the electric push rod 511, thereby driving the first limiting wheel 514 to move to the right, and the first limiting wheel 514 is used to resist the annular rack. At the same time, when the connecting plate 513 moves to the right, the front and rear inclined surfaces of the connecting plate 513 will resist the second limiting wheel 516. The second connecting rod 525 rotates under the action of the second limiting wheel 516, thereby driving the third limiting wheel 517 to move inward, so that the third limiting wheel 517 contacts the annular rack. The cooperation between the first limiting wheel 514 and the third limiting wheels 517 on the front and rear sides can limit the annular rack at three points to ensure stability. An arc groove 518 is provided on the top of the placing table 3. A fixed block is fixedly connected to the inside of the arc groove 518. Two sliders 520 are slidably connected to the inside of the arc groove 518. One side of the two sliders 520 is fixedly connected to the fixed block respectively. The tops of the two sliders 520 are fixedly connected to the first limiting plates 521 respectively. The first limiting plates 521 are in contact with the arc rack. The first limiting plates 521 on both sides are in contact with the arc rack. The inner sides of the limiting plates 521 are fixedly connected with interference rods 522, and the top of the connecting plate 513 is fixedly connected with a first folding rod 523, and the end of the first folding rod 523 away from the connecting plate 513 is fixedly connected with an inclined block 524, and the inclined block 524 contacts the interference rod 522. When the connecting plate 513 moves to the right, it will drive the first folding rod 523 to move to the right. The rightward movement of the first folding rod 523 can drive the inclined block 524 to move to the right. Under the interference action of the inclined block 524, the interference rods 522 on the front and rear sides expand outward at the same time, thereby driving the first limiting plates 521 on the front and rear sides to move outward at the same time, and the notch of the arc-shaped rack is limited and clamped by the first limiting plate 521, so as to maintain the stability of the annular rack.

[0021] Working principle: Place the arc-shaped rack on the placing table 3, start the electric push rod 511, the electric push rod 511 pushes the connecting plate 513, and the connecting plate 513 moves to the right under the pushing action of the electric push rod 511, thereby driving the first limiting wheel 514 to move to the right, and the first limiting wheel 514 is used to resist the annular rack. At the same time, when the connecting plate 513 moves to the right, the front and rear inclined surfaces of the connecting plate 513 will resist the second limiting wheel 516. Under the action of the resistance to the second limiting wheel 516, the second connecting rod 525 is rotated, thereby driving the third limiting wheel 517 to move inward, so that the third limiting wheel 517 resists the annular rack. shaped rack, the cooperation between the first limiting wheel 514 and the third limiting wheels 517 on the front and rear sides can limit the annular rack at three points to ensure stability. At the same time, when the connecting plate 513 moves to the right, it will drive the first folding rod 523 to move to the right. The movement of the first folding rod 523 to the right can drive the inclined block 524 to move to the right. Under the interference of the inclined block 524, the interference rods 522 on the front and rear sides expand outward at the same time, thereby driving the first limiting plates 521 on the front and rear sides to move outward at the same time, and the notch of the arc-shaped rack is limited and clamped by the first limiting plate 521 to maintain the stability of the annular rack.

[0022] See also Figure 1-7On the basis of the above embodiment, in another embodiment of the present invention, an auxiliary mechanism 6 is provided on the top of the processing table 1, and the auxiliary mechanism 6 includes a second folding rod 611, and the second folding rod 611 is fixedly connected to the bottom of the connecting plate 513, and the right side of the second folding rod 611 is fixedly connected to the first contact block 612, and the right side of the first connecting rod 2 is fixedly connected to the first fixing plate 613, and the right side of the first fixing plate 613 is fixedly connected to the first ring plate 614, and the top of the first ring plate 614 is fixedly connected to the telescopic rod 615, and the telescopic rod 615 The outer wall of the second spring 616 is provided, the top of the telescopic rod 615 is fixedly connected to the second ring plate 617, the top of the second ring plate 617 is fixedly connected to the second interference block 618, the first interference block 612 is in contact with the second interference block 618, the interior of the placement table 3 is penetrated by a suction cup 619 and extends to the bottom thereof, the interior of the suction cup 619 is movably connected to a piston rod 620, a sealing gasket is provided between the piston rod 620 and the suction cup 619, the piston rod 620 is fixedly connected to the top of the second ring plate 617, the suction cup 619 is connected to the bottom of the arc-shaped rack When the connecting plate 513 moves to the right, it will drive the second folding rod 611 to move to the right, thereby driving the first contact block 612 to move to the right. When the first contact block 612 moves to the right, it will contact the second contact block 618. Under the action of the contact, the second contact block 618 moves downward, thereby driving the second ring plate 617 to move downward. When the second ring plate 617 moves downward, it will drive the piston rod 620 to move downward. After the piston rod 620 drops, the air pressure inside the suction cup 619 will decrease. Afterwards, the external atmospheric pressure will try to press the suction cup 619 to the contact surface, thereby generating adsorption force, thereby increasing the adsorption force of the suction cup 619 on the annular rack. The outer wall of the second ring plate 617 is fixedly connected to the second limit plate 621, and the second limit plate 621 is an inverted L-shape. The second limit plate 621 fits with the arc-shaped rack. When the second ring plate 617 descends, it also drives the second limit plate 621 to descend. The top of the annular rack is limited by the second limit plate 621, forming a double constraint up and down, ensuring that the rack always remains stable during the processing process.

[0023] Working principle: When the connecting plate 513 moves to the right, it will drive the second folding rod 611 to move to the right, thereby driving the first contact block 612 to move to the right. When the first contact block 612 moves to the right, it will contact the second contact block 618. Under the action of the resistance, the second contact block 618 moves downward, thereby driving the second ring plate 617 to move downward. When the second ring plate 617 moves downward, it will drive the piston rod 620 to move downward. After the piston rod 620 drops, the air pressure inside the suction cup 619 will decrease. After the air pressure inside the suction cup 619 decreases, the external atmospheric pressure will try to press the suction cup 619 to the contact surface, thereby generating an adsorption force, thereby increasing the adsorption force of the suction cup 619 on the annular rack. When the second ring plate 617 drops, it also drives the second limit plate 621 to drop. The top of the annular rack is limited by the second limit plate 621, forming a double constraint up and down to ensure that the rack remains stable during the processing process.

[0024] See also Figure 1-7 On the basis of the above embodiment, in another embodiment of the present invention, a dust removal mechanism 7 is provided on the top of the processing table 1, and the dust removal mechanism 7 includes a third vertical plate 711, and the third vertical plate 711 is fixedly connected to the top of the processing table 1. The back of the third vertical plate 711 is fixedly connected to the second fixed plate 712, and the bottom of the second fixed plate 712 is fixedly connected to a plurality of air bags 713. The outside of the air bag 713 is connected with an air blowing pipe 714. The outer wall of the second ring plate 617 is fixedly connected to one end of the third folding rod 715, and the other end of the third folding rod 715 is fixedly connected to a baffle 716. The baffle 716 is provided at the bottom of the air bag 713. When the processing of the annular rack is completed, the limit of the annular rack needs to be released, so the second ring plate 617 will move upward. When the second ring plate 617 moves upward, the baffle 716 will be driven upward by the third folding rod 715 When the baffle 716 moves upward, it will squeeze the airbag 713, so that the gas will be blown to the surface of the rack through the air blow pipe 714, which can effectively blow away the dust on the rack and prevent dust accumulation from affecting the processing accuracy and equipment life. The dust will fall into the inside of the discharge pipe 8. The bottom of the third folding rod 715 is fixedly connected to the vertical rod 717, and the bottom of the vertical rod 717 is fixedly connected to the third spring 718. The bottom of the third spring 718 is fixedly connected to the knocking ball 719. When the next annular rack is limited and fixed again, the third folding rod 715 will be driven to descend, thereby driving the third spring 718 at the bottom of the vertical rod 717 to descend, and the inner wall of the discharge pipe 8 will be knocked by the knocking ball 719 to prevent dust from sticking to the inner wall of the discharge pipe 8, ensuring smooth discharge of dust, further optimizing the processing environment, and improving the cleanliness and service life of the equipment.

[0025] Working principle: After the processing of the annular rack is completed, the limit of the annular rack needs to be released, so the second ring plate 617 will move upward. When the second ring plate 617 moves upward, the baffle 716 will be driven to move upward through the third folding rod 715. When the baffle 716 moves upward, it will squeeze the airbag 713, so that the gas will be blown to the surface of the rack through the blowing pipe 714, which can effectively blow away the dust on the rack and prevent dust accumulation from affecting the processing accuracy and equipment life. The dust will fall into the inside of the discharge pipe 8. When the next annular rack is limited and fixed again, the third folding rod 715 will be driven to descend, thereby driving the third spring 718 at the bottom of the vertical rod 717 to descend, and the inner wall of the discharge pipe 8 will be knocked by the knocking ball 719 to prevent dust from sticking to the inner wall of the discharge pipe 8, ensuring smooth discharge of dust, further optimizing the processing environment, and improving the cleanliness and service life of the equipment.

[0026] The present invention provides a clamping device for fine grinding a rack. There are numerous methods and approaches for implementing this technical solution. The above is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the present invention. Any components not specified in this embodiment may be implemented using existing technologies.

Claims

1. A clamping device for fine grinding a rack, comprising a processing table, characterized in that: A square groove is provided inside the processing table, one end of four first connecting rods is fixedly connected to the inner wall of the square groove, the other ends of the four first connecting rods are fixedly connected to the placement table, the top of the processing table is fixedly connected to the first vertical plate, and the bottom of the processing table is connected to a discharge pipe; A clamping mechanism is provided on the top of the processing table, and the clamping mechanism includes an electric push rod, which is fixedly connected to the right side of the first vertical plate, and a connecting plate is fixedly connected to the right side of the electric push rod. The top of the processing table is fixedly connected to a support plate, and the connecting plate is slidably connected to the top of the support plate. A first limiting wheel is provided on the right side of the connecting plate, and two second vertical plates are fixedly connected to the top of the processing table, and one side of the two second vertical plates is respectively fixedly connected to a second connecting rod, and a second limiting wheel and a third limiting wheel are respectively provided on the left and right sides of the second connecting rod.

2. A rack fine grinding clamping device according to claim 1, characterized in that: An arc groove is provided on the top of the placing table, a fixed block is fixedly connected to the inside of the arc groove, two sliders are slidably connected to the inside of the arc groove, and a first spring is fixedly connected between one side of the two sliders and the fixed block respectively.

3. The rack fine grinding clamping device according to claim 2, characterized in that: The tops of the two sliders are respectively fixedly connected with a first limit plate, the first limit plate is in contact with the arc-shaped rack, the inner sides of the first limit plates on both sides are respectively fixedly connected with a resistance rod, the top of the connecting plate is fixedly connected with a first folding rod, the end of the first folding rod away from the connecting plate is fixedly connected with an inclined block, and the inclined block is in contact with the resistance rod.

4. The rack fine grinding clamping device according to claim 3, characterized in that: An auxiliary mechanism is provided on the top of the processing table, and the auxiliary mechanism includes a second folding rod, the second folding rod is fixedly connected to the bottom of the connecting plate, the right side of the second folding rod is fixedly connected to the first interference block, the right side of the first connecting rod is fixedly connected to the first fixed plate, the right side of the first fixed plate is fixedly connected to the first ring plate, the top of the first ring plate is fixedly connected to the telescopic rod, the outer wall of the telescopic rod is provided with a second spring, the top of the telescopic rod is fixedly connected to the second ring plate, the top of the second ring plate is fixedly connected to the second interference block, and the first interference block is in contact with the second interference block.

5. The rack fine grinding clamping device according to claim 4, characterized in that: A suction cup passes through the interior of the placement table and extends to its bottom. A piston rod is movably connected to the interior of the suction cup. A sealing gasket is provided between the piston rod and the suction cup. The piston rod is fixedly connected to the top of the second ring plate, and the suction cup contacts the bottom of the arc-shaped rack.

6. The rack fine grinding clamping device according to claim 5, characterized in that: The outer wall of the second ring plate is fixedly connected with a second limiting plate, the second limiting plate is in an inverted L shape, and the second limiting plate is in contact with the arc-shaped rack.

7. The rack fine grinding clamping device according to claim 6, characterized in that: A dust removal mechanism is provided on the top of the processing table, and the dust removal mechanism includes a third vertical plate, the third vertical plate is fixedly connected to the top of the processing table, the back of the third vertical plate is fixedly connected to a second fixed plate, the bottom of the second fixed plate is fixedly connected to a plurality of air bags, the outside of the air bags is connected with an air blowing pipe, the outer wall of the second ring plate is fixedly connected to one end of the third folding rod, the other end of the third folding rod is fixedly connected to a baffle, and the baffle is provided at the bottom of the air bag.

8. The rack fine grinding clamping device according to claim 7, characterized in that: The bottom of the third folding rod is fixedly connected to a vertical rod, the bottom of the vertical rod is fixedly connected to a third spring, and the bottom of the third spring is fixedly connected to a knocking ball.

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