Chamfering device for nut machining

Abstract

The invention discloses a chamfering device for nut machining, and relates to the technical field of nut machining equipment. The device comprises a base, a supporting table, a supporting frame, a clamping assembly and a chamfering tool bit assembly, the base is provided with the supporting table and a collecting drawer, the supporting table is matched with a transverse clamping plate assembly through a two-way screw and a sliding block, the supporting frame is provided with a longitudinal clamping assembly, and three-dimensional clamping is formed; the two ends of the base are connected with a lifting plate through a lifting mechanism, a chamfering tool bit is driven by a double-screw and servo motor to achieve multi-dimensional adjustment on the lifting plate, and a rotating motor drives the tool bit to machine. The clamping face is provided with a rubber anti-skid pad, a pressure sensor and a controller to integrally control the whole process. A three-dimensional clamping structure is adopted, clamping is stable, adaptability is wide, a tool bit can be accurately adjusted in multiple dimensions, the automation degree is high, the nut chamfering precision and production efficiency can be effectively improved, meanwhile, a waste collecting drawer and pressure sensing protection are arranged, the machining environment and product quality are optimized, and the nut chamfering machine is suitable for batch machining of nuts of various specifications.

Description

Technical Field

[0001] This invention belongs to the technical field of nut processing equipment, and in particular relates to a chamfering device for nut processing. Background Technology

[0002] Chamfering is a key process in nut manufacturing, aiming to remove burrs and sharp corners from the nut's end face or opening, facilitating assembly and use, and improving the product's appearance and safety. However, current nut chamfering devices on the market have several shortcomings: 1. Poor clamping stability: Traditional chamfering devices mostly use a single-direction clamping structure, which is not adaptable to different sizes and shapes (especially eccentric nuts). During the clamping process, the nut is prone to displacement and shaking, resulting in low chamfering accuracy and even scrap.

[0003] 2. Insufficient adjustment flexibility: The position adjustment of the chamfering cutter head is mostly in a single dimension, which makes it difficult to accurately adapt to the chamfering requirements of different parts of the nut. It has poor adaptability to the processing of eccentric holes and irregularly shaped nuts, requiring frequent tooling changes and reducing production efficiency.

[0004] 3. Low level of automation: Most devices require manual intervention in clamping, positioning, and cutting head adjustment, which is not only labor-intensive but also prone to affecting the consistency of processing due to human error, making it difficult to meet the needs of mass production.

[0005] 4. Inconvenient waste disposal: Metal shavings generated during processing tend to accumulate in the processing area, which not only affects processing accuracy but also requires extra time to clean up, increasing production auxiliary costs.

[0006] 5. Risk of clamping damage: Traditional clamping structures lack pressure feedback and buffer design. Excessive clamping force can easily cause scratches and deformation on the nut surface, while insufficient clamping force cannot guarantee processing stability and affect product quality.

[0007] Therefore, there is an urgent need for a chamfering device that can clamp stably, adjust flexibly, be highly automated, and be compatible with nuts of various specifications, in order to solve the above-mentioned problems existing in the prior art. Summary of the Invention

[0008] The present invention aims to provide a chamfering device for nut processing that features stable clamping, flexible adjustment, high degree of automation, and wide adaptability, enabling high-precision and high-efficiency chamfering of nuts of various specifications, while optimizing the processing environment and reducing the risk of product damage.

[0009] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a chamfering device for nut processing, comprising a base, the base being a U-shaped plate structure, a support platform fixed in the middle of the base, a support frame corresponding to the support platform fixed on the upper surface of the base, an adjustment frame on the upper surface of the support platform, a bidirectional screw rotatably connected inside the adjustment frame, one end of the bidirectional screw extending through the adjustment frame to the outside and fixedly connected to the output end of a servo motor A, the servo motor A being fixedly connected to the adjustment frame, sliders symmetrically threaded on both sides of the bidirectional screw, a transverse clamping plate assembly fixed to the upper part of each slider, a longitudinal clamping assembly fixed in the middle of the support frame, and collection drawers on both sides of the bottom of the base. Lifting frames are provided on the upright plates at both ends of the base. A lifting electric telescopic rod is fixed to the upper end of each lifting frame. The output end of the electric telescopic rod extends through the lifting frame into the interior and is fixedly connected to a lifting block. Two lifting blocks on the same side are connected to a lifting plate. An adjusting transverse groove is provided along the length direction in the middle of the upper surface of the lifting plate. A servo motor B is fixed to one side of the adjusting transverse groove. An adjusting screw A is fixed to the output end of the servo motor B. A moving block is threaded to the circumferential side of the adjusting screw A. An adjusting plate is fixed to the upper end of the moving block. An adjusting longitudinal groove is provided along the length direction in the middle of the upper surface of the adjusting plate. An adjusting screw B is rotatably connected to the adjusting longitudinal groove. One end of the adjusting screw B extends through the adjusting longitudinal groove to the outside and is fixedly connected to the output end of a servo motor C fixed to one side of the adjusting plate. A connecting seat is rotatably connected to the circumferential side of the adjusting screw B. A rotary motor is installed on the connecting seat, and a chamfering cutter is fixed to the output end of the rotary motor. The transverse clamping plate assembly includes a side clamping plate. A transmission box is fixed to the outer upper part of the side clamping plate. A servo motor D is fixed to one side of the transmission box. A worm gear is rotatably connected inside the transmission box. The worm gear passes through the transmission box and is fixedly connected to the output end of the servo motor D. A worm wheel meshes with the upper side of the worm gear. A rotating shaft is fixed in the middle of the worm wheel. One end of the rotating shaft is rotatably connected to the inside of the transmission box. The other end of the rotating shaft passes through a cavity inside the side clamping plate and is rotatably connected to the inner wall of the cavity. A transmission gear is fixed to the circumferential side of the rotating shaft located in the cavity. Gear plates mesh with the upper and lower sides of the transmission gear. A track groove is opened on the outer wall of the gear plate. A sliding block matching the track groove is fixed on the inner wall of the cavity. Through slots for the movement of the gear plates are opened on the left and right sides of the cavity. A limiting clamping plate A is fixed to the right side of the upper gear plate. A movable hole for the sliding of the gear plate is opened on the limiting clamping plate A. A limiting clamping plate B is fixed to the left side of the lower gear plate. A movable hole for the sliding of the gear plate is opened on the upper side of the limiting clamping plate B. The longitudinal clamping assembly includes a downward electric telescopic rod fixed in the middle of the support frame, and a downward pressure plate is fixed at the lower end of the downward electric telescopic rod.

[0010] In one embodiment, the cross-section of the support platform is an isosceles trapezoid, and the support frame is located directly above the support platform.

[0011] In one embodiment, the shape and size of the slider are adapted to the adjustment frame, and the slider and the adjustment frame slide together.

[0012] In one embodiment, the shape and size of the lifting block are adapted to the lifting frame, and the lifting block and the lifting frame slide together.

[0013] In one embodiment, the shape and size of the movable block are adapted to the adjusting transverse groove, and the movable block and the adjusting transverse groove are in sliding fit.

[0014] In one embodiment, the shape and size of the connecting seat are adapted to the adjusting groove, and the connecting seat and the adjusting groove are in sliding fit.

[0015] In one embodiment, rubber anti-slip pads are fixed to the clamping surfaces of the lower pressure plate, limiting clamp A, limiting clamp B, and side clamp, and pressure sensors are fixed between the rubber anti-slip pads and the clamping surfaces of the lower pressure plate, limiting clamp A, limiting clamp B, and side clamp.

[0016] In one embodiment, a controller fixed to the support frame is also included, which is electrically connected to servo motor A, lifting electric telescopic rod, servo motor B, servo motor C, rotary motor, servo motor D, pressing electric telescopic rod and pressure sensor respectively.

[0017] In one embodiment, support legs are fixed at the four corners of the lower surface of the base, and anti-slip pads are fixed at the lower ends of the support legs. The anti-slip pads are made of rubber.

[0018] The present invention has the following beneficial effects: This invention employs a collaborative clamping structure of a transverse clamping plate assembly and a longitudinal clamping assembly. Laterally, a bidirectional screw drives the slider to move in opposite directions, achieving multi-directional clamping with the worm gear-worm wheel-gear-tooth plate transmission limiting clamps A and B. Longitudinally, a downward-pressing electric telescopic rod drives the lower pressure plate to apply pressure, forming a three-dimensional clamping system capable of stably fixing nuts of different sizes and shapes (including eccentric nuts). Simultaneously, rubber anti-slip pads and pressure sensors are provided on the clamping surfaces to prevent scratches on the nut surface and to adjust the clamping force in real time through pressure feedback, ensuring clamping stability and product integrity.

[0019] In this invention, the chamfering cutter head achieves height adjustment via a lifting electric telescopic rod, horizontal adjustment via servo motor B and adjusting screw A, and vertical adjustment via servo motor C and adjusting screw B. Combined with the rotation of the cutter head driven by a rotary motor, a multi-dimensional, high-precision adjustment system is formed, which can accurately adapt to the chamfering requirements of different parts such as nut end faces, holes, and eccentric structures, greatly improving chamfering accuracy and processing consistency.

[0020] This invention integrates control of all power components (servo motor, electric telescopic rod, rotary motor, etc.) through a controller, realizing fully automated operation of clamping and positioning, tool adjustment, and chamfering without manual intervention, reducing operational errors, improving processing consistency, reducing labor intensity, and meeting the needs of mass production.

[0021] In this invention, a collection drawer is provided at the bottom of the base, which can directly collect metal shavings generated during the processing, avoiding the accumulation of shavings that affects processing accuracy. No additional cleaning process is required, which reduces production auxiliary costs and optimizes the processing environment.

[0022] The invention features a reasonable overall structural design and a clear layout of components. Parameter setting and processing control can be completed through the controller, making operation easy. Key transmission components adopt mature lead screw, gear, and worm gear transmission structures, resulting in low failure rate, convenient maintenance, and reduced equipment operating costs.

[0023] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments 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.

[0025] Figure 1 This is a schematic diagram of the overall structure of a chamfering device used for nut processing; Figure 2 A top view of a chamfering device used for nut machining; Figure 3 for Figure 2 Sectional view of AA in the middle; Figure 4 for Figure 3 Cross-sectional view of the middle section (BB); Figure 5 for Figure 4 Enlarged view of section C; Figure 6 This is a schematic diagram of the transverse clamping plate assembly structure in this invention.

[0026] The attached diagram lists the components represented by each number as follows: 1. Base; 101. Support platform; 102. Support frame; 103. Adjusting frame; 104. Bidirectional screw; 105. Servo motor A; 106. Slider; 107. Collection drawer; 108. Vertical plate; 109. Lifting frame; 110. Lifting electric telescopic rod; 111. Lifting block; 112. Lifting plate; 113. Adjusting transverse groove; 114. Servo motor B; 115. Adjusting screw A; 116. Moving block; 117. Adjusting plate; 118. Adjusting longitudinal groove; 119. Adjusting screw B; 120. Servo motor C; 21. Connecting seat; 122. Rotary motor; 123. Chamfering cutter head; 2. Transverse clamping plate assembly; 201. Side clamping plate; 202. Transmission box; 203. Servo motor D; 204. Worm gear; 205. Worm wheel; 206. Rotating shaft; 207. Cavity; 208. Transmission gear; 209. Tooth plate; 210. Track groove; 211. Sliding block; 212. Limiting clamping plate A; 213. Limiting clamping plate B; 3. Longitudinal clamping assembly; 301. Downward electric telescopic rod; 302. Downward pressure plate; 4. Rubber anti-slip pad; 5. Controller. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0028] In the description of this invention, it should be understood that the terms "upper," "middle," "outer," "inner," etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0029] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] Example 1: Please see Figures 1-6As shown, the present invention is a chamfering device for nut processing, including a base 1, which is a U-shaped plate structure. A support platform 101 is fixed in the middle of the base 1. A support frame 102 corresponding to the support platform 101 is fixed on the upper surface of the base 1. An adjustment frame 103 is tracked on the upper surface of the support platform 101. A bidirectional screw 104 is rotatably connected inside the adjustment frame 103. One end of the bidirectional screw 104 extends through the adjustment frame 103 to the outside and is fixedly connected to the output end of a servo motor A105. The servo motor A105 is fixedly connected to the adjustment frame 103. Slider blocks 106 are symmetrically threaded on both sides of the bidirectional screw 104. A transverse clamping plate assembly 2 is fixed on the upper part of each slider 106. A longitudinal clamping assembly 3 is fixed in the middle of the support frame 102. Collection drawers 107 are provided on both sides of the bottom of the base 1. Lifting frames 109 are provided on the upright plates 108 at both ends of the base 1. Lifting electric telescopic rods 110 are fixed to the upper ends of the lifting frames 109. The output end of the electric telescopic rods 110 extends through the lifting frames 109 into the interior and is fixedly connected to lifting blocks 111. Two lifting blocks 111 on the same side are connected to a lifting plate 112. An adjusting transverse groove 113 is provided along the length direction in the middle of the upper surface of the lifting plate 112. A servo motor B114 is fixed to one side of the adjusting transverse groove 113. An adjusting screw A115 is fixed to the output end of the servo motor B114. The adjusting screw A115 is threaded around its periphery. A movable block 116 is connected to the upper part of the movable block 116, and an adjusting plate 117 is fixed to the upper end of the movable block 116. An adjusting groove 118 is opened in the middle of the upper surface of the adjusting plate 117 along the length direction. An adjusting screw B119 is rotatably connected in the adjusting groove 118. One end of the adjusting screw B119 extends through the adjusting groove 118 to the outside and is fixedly connected to the output end of the servo motor C120 fixed on one side of the adjusting plate 117. A connecting seat 121 is rotatably connected to the circumferential side of the adjusting screw B119. A rotary motor 122 is installed on the connecting seat 121. A chamfering cutter head 123 is fixed to the output end of the rotary motor 122. The transverse clamping plate assembly 2 includes a side clamping plate 201. A transmission box 202 is fixed to the outer side of the upper end of the side clamping plate 201. A servo motor D203 is fixed to one side of the transmission box 202. A worm gear 204 is rotatably connected inside the transmission box 202. The worm gear 204 passes through the transmission box 202 and is fixedly connected to the output end of the servo motor D203. A worm wheel 205 meshes on the upper side of the worm gear 204. A rotating shaft 206 is fixed in the middle of the worm wheel 205. One end of the rotating shaft 206 is rotatably connected to the inside of the transmission box 202. The other end of the rotating shaft 206 passes through the cavity 207 inside the side clamping plate 201 and is rotatably connected to the inner wall of the cavity 207. A transmission gear 208 is fixed to the circumference of the rotating shaft 206 inside 07. The transmission gear 208 has meshing toothed plates 209 on its upper and lower sides. A track groove 210 is opened on the outer wall of the toothed plate 209. A sliding block 211 matching the track groove 210 is fixed on the inner wall of the cavity 207. Through grooves for the toothed plate 209 to move are opened on the left and right sides of the cavity 207. A limiting clamping plate A212 is fixed to the right side of the upper toothed plate 209. A movable hole for the toothed plate 209 to slide is opened on the limiting clamping plate A212. A limiting clamping plate B213 is fixed to the left side of the lower toothed plate 209. A movable hole for the toothed plate 209 to slide is opened on the upper side of the limiting clamping plate B213. The longitudinal clamping assembly 3 includes a downward electric telescopic rod 301 fixed in the middle of the support frame 102, and a downward pressure plate 302 is fixed at the lower end of the downward electric telescopic rod 301.

[0031] Furthermore, the cross-section of the support platform 101 is an isosceles trapezoid, and the support frame 102 is located directly above the support platform 101.

[0032] Furthermore, the shape and size of the slider 106 are adapted to the adjustment frame 103, and the slider 106 and the adjustment frame 103 slide together.

[0033] According to claim 1, in the chamfering device for nut processing of this embodiment, the shape and size of the lifting block 111 are adapted to the lifting frame 109, and the lifting block 111 and the lifting frame 109 are in sliding fit.

[0034] Furthermore, the shape and size of the movable block 116 are adapted to the adjusting transverse groove 113, and the movable block 116 and the adjusting transverse groove 113 slide together.

[0035] Furthermore, the shape and size of the connecting seat 121 are adapted to the adjusting groove 118, and the connecting seat 121 and the adjusting groove 118 are in sliding fit.

[0036] Furthermore, rubber anti-slip pads 4 are fixed to the clamping surfaces of the lower pressure plate 302, the limiting clamping plate A212, the limiting clamping plate B213, and the side clamping plate 201. Pressure sensors are fixed between the rubber anti-slip pads 4 and the clamping surfaces of the lower pressure plate 302, the limiting clamping plate A212, the limiting clamping plate B213, and the side clamping plate 201.

[0037] Furthermore, it also includes a controller 5 fixed on the support frame 102. The controller 5 is electrically connected to the servo motor A105, the lifting electric telescopic rod 110, the servo motor B114, the servo motor C120, the rotary motor 122, the servo motor D203, the pressing electric telescopic rod 301, and the pressure sensor.

[0038] Furthermore, support legs are fixed at the four corners of the lower surface of the base 1, and anti-slip pads are fixed at the lower ends of the support legs. The anti-slip pads are made of rubber.

[0039] Example 2: Please see Figures 1-6 As shown in the figure, this embodiment illustrates the method of using a chamfering device for nut processing: In use, the eccentric nut to be processed is first placed on the plane of the adjustment frame 103 on the support platform 101. The servo motor A105 is started by the controller 5, which drives the bidirectional screw 104 to rotate, thereby driving the two sliders 106 to move towards or away from each other within the adjustment frame 103, adjusting the distance between the two transverse clamping plate assemblies 2 to accommodate nuts of different sizes. After the sliders 106 are in position, the servo motor D203 is started, which drives the worm gear 204 to rotate. The worm gear 204 drives the worm wheel 205 to rotate, and the worm wheel 205 drives the transmission gear 208 to rotate through the rotating shaft 206. The transmission gear 208 drives the toothed plates 209 on the upper and lower sides to slide within the cavity 207, thereby driving the limiting clamping plates A212 and B213 to move closer to the nut, achieving transverse clamping.

[0040] After the lateral clamping is completed, the downward electric telescopic rod 301 is activated, causing the downward pressure plate 302 to move downward and clamp the nut longitudinally. At this time, the nut is firmly fixed on the plane of the adjusting frame 103. Next, according to the processing requirements of the nut, the lifting electric telescopic rod 110 is activated through the controller 5, causing the lifting block 111 to slide within the lifting frame 109, thereby adjusting the height of the lifting plate 112 so that the chamfering cutter head 123 is aligned with the part of the nut to be processed.

[0041] After alignment, start the servo motor B114, which drives the adjusting screw A115 to rotate, causing the moving block 116 to slide within the adjusting transverse groove 113, adjusting the horizontal position of the adjusting plate 117, so that the chamfering cutter head 123 is closer to the part of the nut to be processed. Then, start the servo motor C120, which drives the adjusting screw B119 to rotate, causing the connecting seat 121 to slide within the adjusting longitudinal groove 118, adjusting the longitudinal position of the chamfering cutter head 123, ensuring that the chamfering cutter head 123 can accurately chamfer the eccentric hole of the nut.

[0042] During the processing, the rotary motor 122 drives the chamfering cutter head 123 to rotate, performing chamfering on the nut. At the same time, the pressure sensor monitors the clamping force of the lower pressure plate 302, the limiting clamping plate A212, the limiting clamping plate B213, and the side clamping plate 201 on the nut in real time, ensuring that the clamping force is within a suitable range and preventing the nut from shifting or being damaged during processing.

[0043] After processing is complete, the controller 5 resets all components, and the processed nut is removed, allowing the processing of the next nut to begin. The entire processing is highly automated, easy to operate, and can greatly improve the processing efficiency and quality of nuts.

[0044] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0045] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A chamfering device for nut processing, comprising a base (1), characterized in that: The base (1) is a "U" shaped plate structure. A support platform (101) is fixed in the middle of the base (1). A support frame (102) corresponding to the support platform (101) is fixed on the upper surface of the base (1). An adjustment frame (103) is tracked on the upper surface of the support platform (101). A bidirectional screw (104) is rotatably connected inside the adjustment frame (103). One end of the bidirectional screw (104) extends through the adjustment frame (103) to the outside and is fixedly connected to the output end of the servo motor A (105). The servo motor A (105) is fixedly connected to the adjustment frame (103). Slider (106) is symmetrically threaded on both sides of the bidirectional screw (104). A horizontal clamping plate assembly (2) is fixed on the upper part of each of the two sliders (106). A longitudinal clamping assembly (3) is fixed in the middle of the support frame (102). A collection drawer (107) is provided on both sides of the bottom of the base (1). Lifting frames (109) are provided on the upright plates (108) at both ends of the base (1). Lifting electric telescopic rods (110) are fixed to the upper ends of the lifting frames (109). The output end of the lifting electric telescopic rods (110) extends through the lifting frames (109) into the interior and is fixedly connected to lifting blocks (111). The two lifting blocks (111) on the same side are connected to a lifting plate (112). An adjustment groove (113) is provided in the middle of the upper surface of the lifting plate (112) along the length direction. A servo motor B (114) is fixed on one side of the adjustment groove (113). An adjustment screw A (115) is fixed to the output end of the servo motor B (114). The adjustment screw A (115) is located on the periphery of the adjustment groove A (115). A movable block (116) is threadedly connected, and an adjusting plate (117) is fixed at the upper end of the movable block (116). An adjusting groove (118) is opened in the middle of the upper surface of the adjusting plate (117) along the length direction. An adjusting screw B (119) is rotatably connected in the adjusting groove (118). One end of the adjusting screw B (119) extends through the adjusting groove (118) to the outside and is fixedly connected to the output end of a servo motor C (120) fixed on one side of the adjusting plate (117). A connecting seat (121) is rotatably connected to the circumferential side of the adjusting screw B (119). A rotary motor (122) is installed on the connecting seat (121), and a chamfering cutter head (123) is fixed at the output end of the rotary motor (122). The transverse clamping plate assembly (2) includes a side clamping plate (201). A transmission box (202) is fixed to the outer side of the upper end of the side clamping plate (201). A servo motor D (203) is fixed to one side of the transmission box (202). A worm gear (204) is rotatably connected inside the transmission box (202). The worm gear (204) passes through the transmission box (202) and is fixedly connected to the output end of the servo motor D (203). A worm wheel (205) meshes on the upper side of the worm gear (204). A rotating shaft (206) is fixed in the middle of the worm wheel (205). One end of the rotating shaft (206) is rotatably connected to the inside of the transmission box (202). The other end of the rotating shaft (206) passes through the cavity (207) inside the side clamping plate (201) and is rotatably connected to the inner wall of the cavity (207). A transmission gear (208) is fixed on the circumferential side of the rotating shaft (206) inside the cavity (207). The transmission gear (208) is meshed with toothed plates (209) on its upper and lower sides. A track groove (210) is opened on the outer wall of the toothed plate (209). A sliding block (211) matching the track groove (210) is fixed on the inner wall of the cavity (207). Through slots for the toothed plate (209) to move are opened on the left and right sides of the cavity (207). A limiting clamping plate A (212) is fixed on the right side of the upper toothed plate (209). An active hole for the toothed plate (209) to slide is opened on the limiting clamping plate A (212). A limiting clamping plate B (213) is fixed on the left side of the lower toothed plate (209). An active hole for the toothed plate (209) to slide is opened on the upper side of the limiting clamping plate B (213). The longitudinal clamping assembly (3) includes a downward electric telescopic rod (301) fixed in the middle of the support frame (102), and a downward pressure plate (302) is fixed at the lower end of the downward electric telescopic rod (301).

2. A chamfering device for nut processing according to claim 1, characterized in that, The cross-section of the support platform (101) is an isosceles trapezoid, and the support frame (102) is located directly above the support platform (101).

3. A chamfering device for nut processing according to claim 1, characterized in that, The shape and size of the slider (106) are adapted to the adjustment frame (103), and the slider (106) and the adjustment frame (103) slide together.

4. A chamfering device for nut processing according to claim 1, characterized in that, The shape and size of the lifting block (111) are adapted to the lifting frame (109), and the lifting block (111) and the lifting frame (109) slide together.

5. A chamfering device for nut processing according to claim 1, characterized in that, The shape and size of the movable block (116) are adapted to the adjusting transverse groove (113), and the movable block (116) and the adjusting transverse groove (113) slide together.

6. A chamfering device for nut processing according to claim 1, characterized in that, The shape and size of the connecting seat (121) are adapted to the adjusting groove (118), and the connecting seat (121) and the adjusting groove (118) slide together.

7. A chamfering device for nut processing according to claim 1, characterized in that, The clamping surfaces of the lower pressure plate (302), the limiting clamping plate A (212), the limiting clamping plate B (213), and the side clamping plate (201) are all fixed with rubber anti-slip pads (4), and pressure sensors are fixed between the rubber anti-slip pads (4) and the clamping surfaces of the lower pressure plate (302), the limiting clamping plate A (212), the limiting clamping plate B (213), and the side clamping plate (201).

8. A chamfering device for nut processing according to claim 1, characterized in that, It also includes a controller (5) fixed on the support frame (102), which is electrically connected to the servo motor A (105), the lifting electric telescopic rod (110), the servo motor B (114), the servo motor C (120), the rotary motor (122), the servo motor D (203), the pressing electric telescopic rod (301), and the pressure sensor.

9. A chamfering device for nut processing according to claim 1, characterized in that, The base (1) has four supporting legs fixed at the lower corners of its lower surface. The lower end of each supporting leg is fixed with an anti-slip pad, which is made of rubber.

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