Fine polishing and grinding equipment for machining

Abstract

The invention relates to the technical field of grinding, in particular to fine polishing and grinding equipment for machining, which comprises a semicircular cylinder, a clamping assembly is arranged at one end of the inner wall of the semicircular cylinder, the clamping assembly comprises a limiting groove ring arranged on one side of the semicircular cylinder, and an auxiliary cylinder is movably connected to the inner wall of the limiting groove ring. The end, away from the semicircular cylinder, of the auxiliary cylinder is movably connected with an inner support, and the middle of the inner support is fixedly connected with a rotating shaft. Compared with the prior art, the inner threaded cylinder is driven by the rotating threaded rod to be gradually away from the pipeline workpiece and drive the inclined rod to be gradually expanded, so that the convex rod in the middle of the inclined rod is in contact with the inner wall of the pipeline workpiece, and the outer wall of the inclined rod is in contact with the edge of the pipeline workpiece; therefore, a pipeline workpiece needing to be polished can be clamped through multi-point supporting of the inner wall of the workpiece, the phenomenon that the outer wall of the workpiece cannot be completely polished at a time is prevented, and the polishing efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of polishing, in particular to a fine polishing and grinding device for mechanical processing. Background Art

[0002] Fine polishing and grinding equipment for machining is specialized equipment used to perform high-precision, high-quality polishing and grinding on machined workpiece surfaces. Using specific motions and grinding tools, combined with appropriate grinding media, it finely refines workpiece surfaces to remove burrs, scratches, oxide layers, and other defects, reducing surface roughness and improving surface finish, flatness, and precision. This equipment meets the stringent requirements for appearance, assembly performance, and specific functions of mechanical parts. It is widely used in industries with high surface quality requirements, such as aerospace, automotive manufacturing, mold processing, and electronics and electrical appliances.

[0003] When polishing pipes using polishing equipment, the workpiece is typically positioned by clamping it against its outer wall, and then the polishing tool is moved along the outer wall. However, since the workpiece is clamped and fixed against the outer wall, the clamped area cannot be polished. Consequently, the outer wall of the pipe cannot be fully polished, requiring multiple polishing operations. This not only increases the complexity of the polishing process but also significantly reduces overall polishing efficiency.

[0004] A search revealed that Chinese patent application number CN 117464473A discloses a grinding and polishing machine tool, which relates to the field of grinding technology. The invention aims to improve grinding efficiency and quality. The invention specifically comprises a base, a fixed frame fixed above the base, and a sliding frame coupled to the base via a linear drive. A three-jaw chuck is fixed to the top outer wall of the fixed frame, and a grinding unit is provided on the top of the sliding frame. The jaws of the three-jaw chuck engage the shaft to be ground via ball rolling. The grinding unit comprises a gear ring embedded in the inner wall of the sliding frame, multiple planetary gears meshing with the inner sidewall of the gear ring, and a sun gear meshing with the inner sides of the multiple planetary gears. The invention, by providing a grinding unit, allows multiple grinding wheels to simultaneously grind the outer side of the shaft, preventing grinding defects caused by local defects of the grinding wheels. Furthermore, the multiple grinding wheels rotate along the shaft while rotating, thereby increasing the relative speed between the grinding wheels and the shaft and improving grinding efficiency.

[0005] Therefore, the present application provides a fine polishing and grinding device for mechanical processing to meet the demand for supporting and clamping the inner wall of the pipeline workpiece. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to propose a fine polishing and grinding equipment for mechanical processing to solve the problem that the outer wall of the workpiece is clamped and fixed, which makes the clamped part unable to accept the grinding treatment, and thus causes the outer wall of the pipeline workpiece to be unable to be completely polished and needs to be polished in multiple times.

[0007] Based on the above-mentioned purpose, the present invention provides a fine polishing and grinding equipment for mechanical processing, including a semi-cylinder, a clamping assembly is provided at one end of the inner wall of the semi-cylinder, a displacement assembly is provided at the rear end of the semi-cylinder, the clamping assembly includes a limit groove ring provided on one side of the semi-cylinder, the inner wall of the limit groove ring is movably connected with an auxiliary cylinder, the auxiliary cylinder is movably connected with an inner bracket at one end away from the semi-cylinder, the middle part of the inner bracket is fixedly connected with a rotating shaft, one end of the rotating shaft passes through the inner bracket and is fixedly connected with a threaded rod, the outer wall of the threaded rod is movably connected with an internal threaded cylinder at one end away from the rotating shaft, the inner threaded cylinder is fixedly connected with a positioning cover at one end away from the threaded rod, the outer wall of the positioning cover is evenly distributed on the circumference with a plurality of positioning rotating frames, the other end of the positioning rotating frame is provided with an inclined rod, and the middle of the inclined rod is provided with a convex rod.

[0008] Preferably, a rotating slide is provided at the other end of the inclined rod, and a slide plate is movably connected to the outer wall of the rotating slide. A plurality of slide plates are provided with a limiting ring in the middle, and the limiting ring is movably connected to the rotating shaft. The slide plate is provided on the inner wall of the auxiliary cylinder at one end away from the limiting ring.

[0009] Preferably, the outer wall of the inner bracket is fixedly connected to a gear ring, the outer wall of the gear ring is meshedly connected to a transmission gear, one side of the transmission gear is fixedly connected to a servo motor, and one end of the servo motor is fixedly mounted on the outer wall of the semi-cylinder.

[0010] Preferably, the displacement assembly includes two side frames that are symmetrically and evenly distributed and fixedly installed on the rear end of the semi-cylinder, a reciprocating screw is movably connected between the two side frames, a shuttle is movably installed on the outer wall of the reciprocating screw, a side window is provided on the rear surface of the semi-cylinder, one end of the shuttle passes through the side window and is fixedly connected to an auxiliary frame, a support ring plate is movably connected to the inner wall of the auxiliary frame, a plurality of cams are evenly distributed on the outer wall of the support ring plate, a plurality of thread grooves are evenly distributed on the inner wall of the semi-cylinder, the cams are movably connected to the thread grooves, and a grinding assembly is provided on the side of the support ring plate.

[0011] Preferably, one end of the reciprocating lead screw close to the limiting groove ring passes through the side frame and is fixedly connected to an auxiliary gear, and the auxiliary gear and the gear ring are meshed with each other.

[0012] Preferably, the thread groove is provided with a through groove near the lower end of the semi-cylinder, and the through groove passes through the semi-cylinder, and the bottom ends on both sides of the semi-cylinder are symmetrically and evenly distributed and fixedly connected with two supporting feet.

[0013] Preferably, the grinding assembly includes two transmission shafts symmetrically and evenly distributed and movably mounted on the side of the support ring plate close to the auxiliary cylinder. One end of the transmission shaft passes through the support ring plate and is provided with a torsion spring cylinder, and the other end of the transmission shaft is fixedly connected to the carrier plate.

[0014] Preferably, the carrier plate is movably connected to a support wheel on the side away from the support ring plate, the carrier plate is movably connected to a fixed wheel on one end close to the center of the support ring plate, and a grinding belt is movably connected between the fixed wheel and the support wheel.

[0015] Preferably, the support wheel is fixedly connected to one end of the support ring plate with a positioning gear, the outer wall of the positioning gear is meshedly connected to an inner gear ring, and the inner gear ring is movably connected to the support ring plate.

[0016] Preferably, the inner wall of the inner gear ring is meshedly connected with a fixed gear, and a driving motor is provided at one end of the support ring plate away from the auxiliary cylinder, and the output shaft end of the driving motor passes through the support ring plate and is fixedly connected to the fixed gear.

[0017] Beneficial effects of the present invention: 1. This type of fine polishing and grinding equipment for mechanical processing uses an internally threaded barrel that is driven by a rotating threaded rod, gradually moving away from the pipe workpiece, driving the inclined rod to gradually expand, so that the convex rod in the middle of the inclined rod contacts the inner wall of the pipe workpiece, and the outer wall of the inclined rod contacts the edge of the pipe workpiece. In this way, the pipe workpiece to be polished can be clamped with multiple points of support on the inner wall of the workpiece, preventing the phenomenon of not being able to completely polish the outer wall of the workpiece in one go, thereby improving its polishing efficiency; 2. This type of fine polishing and grinding equipment for machining uses a shuttle connected to a counter-rotating screw to drive an auxiliary frame to move a support ring plate in a semi-cylinder. Since the convex key on the outer wall of the support ring plate slides in the threaded groove of the semi-cylinder, it rotates with the lateral movement, thereby being able to reciprocate and laterally adjust the grinding structure while rotating, thereby improving its grinding efficiency; 3. This type of fine polishing and grinding equipment for machining uses a torsion spring tube to drive the carrier plate to rotate elastically toward the middle of the support ring plate via a rotating shaft, thereby centrally supporting the pipe workpiece to be polished, so that the pipe workpiece is in the center of the semi-cylinder, thereby improving the stability of the pipe workpiece during positioning and clamping, preventing it from deflecting and reducing the polishing quality; 4. This type of fine polishing and grinding equipment for machining uses a threaded rod to rotate during the clamping process, causing the internally threaded barrel to push the positioning cover to move, driving the inclined rod and the convex rod to contact the pipe workpiece, thereby performing positioning and clamping. During the self-rotation process, the inclined rod and the convex rod contact the pipe workpiece, causing the rotation of the threaded rod to drive the internally threaded barrel to rotate accordingly, thereby driving the pipe workpiece to rotate, thereby enabling it to flexibly switch between the clamping structure and the self-rotation structure, thereby improving the efficiency of polishing the workpiece; 5. This type of fine polishing and grinding equipment for mechanical processing, during the grinding process, the shuttle that moves back and forth on the outer wall of the lead screw moves laterally in the side window of the outer wall of the semi-cylinder, and under the connection of the auxiliary frame, drives the support ring plate to move laterally in the middle of the semi-cylinder, and the convex key on the outer wall of the support ring plate slides in the threaded groove on the inner wall of the semi-cylinder, so that the support ring plate rotates and moves back and forth in the semi-cylinder. During the cleaning process, the support ring plate moves on the inner wall of the semi-cylinder, and the debris in the semi-cylinder is discharged when it encounters the through groove in the threaded groove, so that it can flexibly switch between the rotating grinding structure and the cleaning structure, thereby improving the quality of grinding of pipeline workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 The overall structure of the fine polishing and grinding equipment for machining provided by the present invention is shown in FIG. Figure 1 ; Figure 2 The overall structure of the fine polishing and grinding equipment for machining provided by the present invention is shown in FIG. Figure 2 ; Figure 3 The overall structure of the fine polishing and grinding equipment for machining provided by the present invention is shown in FIG. Figure 3 ; Figure 4 Schematic diagram of the partial structure of the clamping assembly in the fine polishing and grinding equipment for machining provided by the present invention Figure 1 ; Figure 5 A schematic diagram of a partial structure of a device for fine polishing and grinding for machining provided by the present invention for removing a clamping component; Figure 6 A schematic diagram of the partial structure of the displacement assembly and the grinding assembly in the fine polishing and grinding equipment for mechanical processing provided by the present invention; Figure 7 A schematic diagram of the partial structure of the fine polishing and grinding equipment for machining provided by the present invention; Figure 8 Schematic diagram of the partial structure of the clamping assembly in the fine polishing and grinding equipment for machining provided by the present invention Figure 2 ; Figure 9 An exploded schematic diagram of a clamping assembly in the fine polishing and grinding equipment for machining provided by the present invention; Figure 10 This is an exploded schematic diagram of the displacement assembly and the grinding assembly in the fine polishing and grinding equipment for mechanical processing provided by the present invention.

[0020] The following are marked in the figure: 1. Semi-cylinder; 2. Clamping assembly; 201. Auxiliary cylinder; 202. Gear ring; 203. Inner bracket; 204. Servo motor; 205. Transmission gear; 206. Slide plate; 207. Rotating slide; 208. Rotating shaft; 209. Threaded rod; 210. Internally threaded cylinder; 211. Limiting ring; 212. Positioning rotating frame; 213. Slanted rod; 214. Protruding rod; 215. Positioning cover; 216. Limiting groove ring; 3. Displacement assembly; 301. Side frame; 302 , reciprocating screw; 303, shuttle; 304, auxiliary gear; 305, support ring plate; 306, auxiliary frame; 307, threaded groove; 308, cam key; 309, side window; 310, through slot; 4, support foot; 5, grinding assembly; 501, inner ring gear; 502, positioning gear; 503, support wheel; 504, fixed wheel; 505, grinding belt; 506, carrier plate; 507, drive motor; 508, transmission shaft; 509, torsion spring tube; 510, fixed gear. DETAILED DESCRIPTION

[0021] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to specific embodiments.

[0022] It should be noted that, unless otherwise defined, the technical or scientific terms used in the present invention should have the usual meanings understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0023] Example 1: In order to solve this technical problem, the present invention provides a fine polishing and grinding equipment for machining, such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 7 、 Figure 8 and Figure 9As shown, it includes a semi-cylinder 1, a clamping assembly 2 is provided at one end of the inner wall of the semi-cylinder 1, a displacement assembly 3 is provided at the rear end of the semi-cylinder 1, the clamping assembly 2 includes a limiting groove ring 216 provided on one side of the semi-cylinder 1, the inner wall of the limiting groove ring 216 is movably connected with an auxiliary cylinder 201, the auxiliary cylinder 201 is movably connected with an inner bracket 203 at one end away from the semi-cylinder 1, the middle of the inner bracket 203 is fixedly connected with a rotating shaft 208, one end of the rotating shaft 208 passes through the inner bracket 203 and is fixedly connected with a threaded rod 209, the outer wall of the threaded rod 209 is movably connected with an internal threaded cylinder 210 at one end away from the rotating shaft 208, the inner threaded cylinder 210 is fixedly connected with a positioning cover 215 at one end away from the threaded rod 209, the outer wall of the positioning cover 215 is evenly distributed with a number of positioning rotating frames 212, the other end of the positioning rotating frame 212 is provided with an inclined rod 213, and the middle of the inclined rod 213 is provided with a convex rod 214, which places the pipeline workpiece between the three convex rods 214 , then start the servo motor 204 to rotate forward, drive the transmission gear 205 to rotate, so that the gear ring 202 meshing with it rotates, and drives the rotating shaft 208 to rotate with the cooperation of the inner bracket 203. Since the threaded rod 209 connected to the rotating shaft 208 is threadedly connected to the internal threaded cylinder 210, the internal threaded cylinder 210 gradually approaches the inner bracket 203, and the positioning cover 215 moves away from the workpiece, and the rotating slide 207 at the other end of the inclined rod 213 slides in the slide plate 206, and cooperates with the adjustment of the angle between the inclined rod 213 and the internal threaded cylinder 210. With the cooperation of the positioning rotating frame 212, the inclined rod 213 is pulled, so that the angle between the inclined rod 213 and the internal threaded cylinder 210 gradually increases, and the inclined rod 213 contacts the edge of the pipe workpiece, and the protruding rod 214 in the middle of the inclined rod 213 conflicts with the inner wall of the pipe workpiece, thereby positioning it.

[0024] The internal threaded barrel 210 is driven by the rotating threaded rod 209, gradually moving away from the pipe workpiece, driving the inclined rod 213 to gradually expand, so that the protruding rod 214 in the middle of the inclined rod 213 contacts the inner wall of the pipe workpiece, and the outer wall of the inclined rod 213 contacts the edge of the pipe workpiece, so that the pipe workpiece to be polished can be clamped with multiple points of support on the inner wall of the workpiece, preventing the phenomenon of not being able to completely polish the outer wall of the workpiece at one time, thereby improving its polishing efficiency.

[0025] Further, such as Figure 4 、 Figure 8 and Figure 9As shown, a rotating slide 207 is provided at the other end of the inclined rod 213, and the outer wall of the rotating slide 207 is movably connected to a slide plate 206. A limiting ring 211 is provided in the middle of several slide plates 206, and the limiting ring 211 is movably connected to the rotating shaft 208. The slide plate 206 is away from the limiting ring 211. The end of the slide plate 206 is provided on the inner wall of the auxiliary cylinder 201, and the rotating slide 207 slides on the slide plate 206 to match the change in the angle between the inclined rod 213 and the internal threaded cylinder 210, and at the same time, the triangular structure between them changes, so that it always maintains a stable state.

[0026] Further, such as Figure 3 、 Figure 4 、 Figure 8 and Figure 9 As shown, the outer wall of the inner bracket 203 is fixedly connected to the gear ring 202, and the outer wall of the gear ring 202 is meshed with a transmission gear 205. One side of the transmission gear 205 is fixedly connected to a servo motor 204. One end of the servo motor 204 is fixedly installed on the outer wall of the semi-cylinder 1. The servo motor 204 drives the transmission gear 205 to rotate, and then drives the gear ring 202 to rotate, providing power for the rotation of the inner bracket 203.

[0027] Example 2, further optimizes the fine polishing and grinding equipment for machining provided in Example 1, specifically, Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 10 As shown, the displacement assembly 3 includes two side frames 301 that are symmetrically and evenly distributed and fixedly installed on the rear end of the semi-cylinder 1. A reciprocating screw 302 is movably connected between the two side frames 301. A shuttle 303 is movably installed on the outer wall of the reciprocating screw 302. A side window 309 is provided on the rear surface of the semi-cylinder 1. One end of the shuttle 303 passes through the side window 309 and is fixedly connected to an auxiliary frame 306. A support ring plate 305 is movably connected to the inner wall of the auxiliary frame 306. A plurality of convex keys 308 are evenly distributed on the outer wall of the support ring plate 305. A plurality of threaded grooves 307 are evenly distributed on the inner wall of the semi-cylinder 1. The convex keys 308 are movably connected to the threaded grooves 307. A grinding assembly 5 is provided on the side of the support ring plate 305. During the rotation of its gear ring 202, the auxiliary gear 304 is driven to rotate accordingly, so that the reciprocating screw 302 rotates between the two side frames 301. Then the shuttle 303 on the outer wall of the reciprocating screw 302 moves laterally in the side window 309 on the outer wall of the semi-cylinder 1. Under the connection of the auxiliary frame 306, the support ring plate 305 is driven to move laterally in the middle of the semi-cylinder 1, and the convex key 308 on the outer wall of the support ring plate 305 slides in the threaded groove 307 on the inner wall of the semi-cylinder 1, so that the support ring plate 305 is rotated and displaced in the semi-cylinder 1, thereby changing its grinding displacement.

[0028] The shuttle 303 connected to the counter screw drives the auxiliary frame 306 to move the support ring plate 305 in the semi-cylinder 1. Since the convex key 308 on the outer wall of the support ring plate 305 slides in the threaded groove 307 of the semi-cylinder 1, it rotates as it is moved horizontally, so that it can rotate while reciprocatingly adjusting the grinding structure horizontally, thereby improving its grinding efficiency.

[0029] Further, such as Figure 2 、 Figure 5 、 Figure 6 and Figure 7 As shown, the reciprocating screw 302 passes through the side frame 301 at one end near the limit groove ring 216 and is fixedly connected to the auxiliary gear 304. The auxiliary gear 304 and the gear ring 202 are meshed with each other. Through the meshing connectivity between the auxiliary gear 304 and the gear ring 202, the servo motor 204 provides power to the auxiliary gear 304 and the gear ring 202 at the same time.

[0030] Further, such as Figure 3 、 Figure 5 、 Figure 6 and Figure 7 As shown, the thread groove 307 is provided with a through groove 310 near the lower end of the semi-cylinder 1, and the through groove 310 passes through the semi-cylinder 1, and the grinding chips in the semi-cylinder 1 are discharged through the through groove 310. The bottom ends of both sides of the semi-cylinder 1 are symmetrically and evenly distributed and fixedly connected with two supporting feet 4, which support the semi-cylinder 1.

[0031] Example 3 further optimizes the fine polishing and grinding equipment for machining provided in Examples 1 and 2. Specifically, Figure 1 、 Figure 3 、 Figure 5 、 Figure 6 and Figure 10As shown, the grinding assembly 5 includes two transmission shafts 508 symmetrically and evenly distributed and movably mounted on the side of the support ring plate 305 close to the auxiliary cylinder 201. One end of the transmission shaft 508 passes through the support ring plate 305 and is provided with a torsion spring cylinder 509. The other end of the transmission shaft 508 is fixedly connected to a carrier plate 506. The pipe workpiece is introduced from the middle of the support ring plate 305 between the semi-cylinders 1. At this time, under the drive of the torsion spring cylinder 509, the carrier plate 506 is driven by the rotating shaft 208 to rotate elastically toward the middle, squeezing the pipe workpiece in the support ring plate 305, so that the pipe workpiece The center of the workpiece is on the same horizontal line as the positioning cover 215, and the workpiece continues to be pushed toward the positioning cover 215 for positioning and clamping. After the center positioning is completed, the drive motor 507 is immediately started to drive the fixed gear 510 to rotate, so that the inner ring gear 501 meshing with it rotates on one side of the support ring plate 305, and the two positioning gears 502 in the inner ring gear 501 follow the rotation, driving the support wheel 503 to rotate. With the cooperation of the fixed wheel 504, the grinding belt 505 moves on one side of the carrier plate 506.

[0032] By using the torsion spring tube 509 and the rotating shaft 208 to drive the carrier plate 506 to elastically rotate toward the middle of the supporting ring plate 305, the pipe workpiece to be polished is centrally supported, so that the pipe workpiece is located in the center of the semi-cylinder 1, thereby improving the stability of the positioning and clamping of the pipe workpiece, preventing it from deviating and reducing the quality of its polishing.

[0033] Further, such as Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 and Figure 10 As shown, the carrier plate 506 is movably connected to the support wheel 503 on the side away from the support ring plate 305, and the carrier plate 506 is movably connected to the fixed wheel 504 at one end close to the center of the support ring plate 305. A grinding belt 505 is movably connected between the fixed wheel 504 and the support wheel 503. The grinding belt 505 is set between the support wheel 503 and the fixed wheel 504, and is driven by the positioning gear 502 connected to the support wheel 503, so that the grinding belt 505 is transmitted between the two wheels, and the pipeline workpiece is transmitted and polished, thereby improving the grinding efficiency.

[0034] Further, such as Figure 5 、 Figure 6 and Figure 10 As shown, the support wheel 503 is fixedly connected to one end of the support ring plate 305 with a positioning gear 502, and the outer wall of the positioning gear 502 is meshingly connected with the inner ring gear 501. The inner ring gear 501 and the support ring plate 305 are movably connected. Through the meshing connection between the positioning gear 502 and the inner ring gear 501, the rotation of the inner ring gear 501 simultaneously drives several positioning gears 502 to rotate.

[0035] Further, such as Figure 3 、 Figure 5 and Figure 6 As shown, the inner wall of the inner gear ring 501 is meshed with a fixed gear 510, and a drive motor 507 is provided at the end of the support ring plate 305 away from the auxiliary cylinder 201. The output shaft end of the drive motor 507 passes through the support ring plate 305 and is fixedly connected to the fixed gear 510. The fixed gear 510 is driven to rotate by the drive motor 507, providing power for the rotation of the inner gear ring 501 and the positioning gear 502.

[0036] The technical solution provided by the present invention is as follows: the staff places the entire structure in a suitable position and supports it with four legs 4; Center positioning: The staff guides the pipe workpiece from the middle of the support ring plate 305 to between the semi-cylinders 1. At this time, driven by the torsion spring tube 509, the rotating shaft 208 drives the carrier plate 506 to elastically rotate toward the center, squeezing the pipe workpiece in the support ring plate 305 so that the center of the pipe workpiece and the positioning cover 215 are on the same horizontal line. The pipe workpiece is further pushed toward the positioning cover 215 so that one end of the pipe workpiece is around the positioning cover 215. The servo motor 204 is then started to rotate in the forward direction, driving the transmission gear 205 to rotate, so that the gear ring 202 meshing with it rotates accordingly, and the rotating shaft 208 is driven to rotate with the cooperation of the inner bracket 203. Since the threaded rod 209 connected to the rotating shaft 208 is threadedly connected to the internal threaded cylinder 210, the internal threaded cylinder 210 gradually approaches the inner bracket 203, and the positioning cover 215 moves away from the workpiece, while the rotating slide 207 at the other end of the inclined rod 213 slides in the slide plate 206, and cooperates with the adjustment of the angle between the inclined rod 213 and the internal threaded cylinder 210. With the cooperation of the positioning rotating frame 212, the inclined rod 213 is pulled, so that the angle between the inclined rod 213 and the internal threaded cylinder 210 gradually increases, and the inclined rod 213 contacts the edge of the pipe workpiece, and the protruding rod 214 in the middle of the inclined rod 213 conflicts with the inner wall of the pipe workpiece, thereby positioning it; Rotation: Since the inclined rod 213 and the convex rod 214 are in contact with the pipe workpiece, the internal threaded barrel 210 and the threaded rod 209 are limited and stop extending and retracting, so that the internal threaded barrel 210 and the threaded rod 209 rotate synchronously. With the cooperation of the positioning cover 215, the clamped pipe workpiece is driven to rotate to cooperate with the grinding operation. Displacement: During the rotation of the gear ring 202, the auxiliary gear 304 is driven to rotate accordingly, causing the reciprocating screw 302 to rotate between the two side frames 301. Then, the shuttle 303 on the outer wall of the reciprocating screw 302 moves laterally in the side window 309 on the outer wall of the semi-cylinder 1. Under the connection of the auxiliary frame 306, the support ring plate 305 is driven to move laterally in the middle of the semi-cylinder 1. The convex key 308 on the outer wall of the support ring plate 305 slides in the threaded groove 307 on the inner wall of the semi-cylinder 1, causing the support ring plate 305 to rotate back and forth in the semi-cylinder 1, thereby changing its grinding displacement. Grinding: When the support ring plate 305 moves, the drive motor 507 is started to drive the fixed gear 510 to rotate, so that the inner gear ring 501 meshing with it rotates on one side of the support ring plate 305. The two positioning gears 502 in the inner gear ring 501 rotate accordingly, driving the support wheel 503 to rotate. With the cooperation of the fixed wheel 504, the grinding belt 505 moves on the side of the carrier plate 506, so that the grinding belt 505 grinds the outer wall of the pipe workpiece, and the pipe workpiece is evenly polished in coordination with its rotation. Cleaning: The grinding chips fall along the surface of the pipe workpiece to the lower end of the semi-cylinder 1, and the support ring plate 305 that moves horizontally back and forth in the semi-cylinder 1 moves the chips in the semi-cylinder 1, and is discharged when it encounters the through groove 310 in the thread groove 307, and the convex key 308 connected to the support ring plate 305 slides in the thread groove 307, and moves the chips accumulated in the thread groove 307 to prevent the chips from accumulating in the semi-cylinder 1.

[0037] It should be understood by those skilled in the art that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Within the scope of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0038] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A fine polishing and grinding equipment for mechanical processing, characterized in that: The invention comprises a semi-cylinder (1), wherein one end of the inner wall of the semi-cylinder (1) is provided with a clamping assembly (2), and the rear end of the semi-cylinder (1) is provided with a displacement assembly (3), wherein the clamping assembly (2) comprises a limiting groove ring (216) provided on one side of the semi-cylinder (1), wherein the inner wall of the limiting groove ring (216) is movably connected to an auxiliary cylinder (201), wherein the end of the auxiliary cylinder (201) away from the semi-cylinder (1) is movably connected to an inner bracket (203), wherein the middle part of the inner bracket (203) is fixedly connected to a rotating shaft (208), and one end of the rotating shaft (208) is fixed to the inner bracket (203). A threaded rod (209) is fixedly connected to the inner bracket (203), and an inner threaded barrel (210) is movably connected to an end of the outer wall of the threaded rod (209) away from the rotating shaft (208). An end of the inner threaded barrel (210) away from the threaded rod (209) is fixedly connected to a positioning cover (215). The outer wall of the positioning cover (215) is provided with a plurality of positioning rotating frames (212) evenly distributed in a circumference, and an inclined rod (213) is provided at the other end of the positioning rotating frame (212). A convex rod (214) is provided in the middle of the inclined rod (213).

2. The fine polishing and grinding equipment for machining according to claim 1, characterized in that: A rotating slide (207) is provided at the other end of the inclined rod (213), and the outer wall of the rotating slide (207) is movably connected to a slide plate (206). A plurality of the slide plates (206) are provided with a limiting ring (211) in the middle, and the limiting ring (211) is movably connected to the rotating shaft (208). The end of the slide plate (206) away from the limiting ring (211) is provided on the inner wall of the auxiliary cylinder (201).

3. The fine polishing and grinding equipment for machining according to claim 2, characterized in that: The outer wall of the inner bracket (203) is fixedly connected to a gear ring (202), the outer wall of the gear ring (202) is meshedly connected to a transmission gear (205), one side of the transmission gear (205) is fixedly connected to a servo motor (204), and one end of the servo motor (204) is fixedly mounted on the outer wall of the semi-cylinder (1).

4. The fine polishing and grinding equipment for machining according to claim 3, characterized in that: The displacement assembly (3) comprises two side frames (301) symmetrically and evenly distributed and fixedly mounted on the rear end of the semi-cylinder (1); a reciprocating screw (302) is movably connected between the two side frames (301); a shuttle (303) is movably mounted on the outer wall of the reciprocating screw (302); a side window (309) is provided on the rear surface of the semi-cylinder (1); one end of the shuttle (303) passes through the side window (309) and is fixedly connected to an auxiliary frame (306); a support ring plate (305) is movably connected to the inner wall of the auxiliary frame (306); a plurality of convex keys (308) are evenly distributed on the outer wall of the support ring plate (305); a plurality of thread grooves (307) are evenly distributed on the inner wall of the semi-cylinder (1); the convex keys (308) are movably connected to the thread grooves (307); a grinding assembly (5) is provided on the side of the support ring plate (305).

5. The fine polishing and grinding equipment for machining according to claim 4, characterized in that: One end of the reciprocating lead screw (302) close to the limiting groove ring (216) passes through the side frame (301) and is fixedly connected to an auxiliary gear (304), and the auxiliary gear (304) and the gear ring (202) are meshed with each other.

6. The fine polishing and grinding equipment for machining according to claim 4, characterized in that: The thread groove (307) is provided with a through groove (310) near the lower end of the semi-cylinder (1), and the through groove (310) passes through the semi-cylinder (1). The bottom ends of both sides of the semi-cylinder (1) are symmetrically and evenly distributed and fixedly connected with two supporting legs (4).

7. The fine polishing and grinding equipment for machining according to claim 4, characterized in that: The grinding assembly (5) comprises two transmission shafts (508) symmetrically and evenly distributed and movably mounted on a side of the support ring plate (305) close to the auxiliary cylinder (201); one end of the transmission shaft (508) passes through the support ring plate (305) and is provided with a torsion spring cylinder (509); the other end of the transmission shaft (508) is fixedly connected to the carrier plate (506).

8. The fine polishing and grinding equipment for machining according to claim 7, characterized in that: The carrier plate (506) is movably connected to a support wheel (503) at one side away from the support ring plate (305), and the carrier plate (506) is movably connected to a fixed wheel (504) at one end close to the center of the support ring plate (305). A grinding belt (505) is movably connected between the fixed wheel (504) and the support wheel (503).

9. The fine polishing and grinding equipment for machining according to claim 8, characterized in that: One end of the support wheel (503) close to the support ring plate (305) is fixedly connected to a positioning gear (502); the outer wall of the positioning gear (502) is meshedly connected to an inner gear ring (501); and the inner gear ring (501) is movably connected to the support ring plate (305).

10. The fine polishing and grinding equipment for machining according to claim 9, characterized in that: The inner wall of the inner gear ring (501) is meshedly connected with a fixed gear (510), and a driving motor (507) is provided at one end of the support ring plate (305) away from the auxiliary cylinder (201), and an output shaft end of the driving motor (507) passes through the support ring plate (305) and is fixedly connected to the fixed gear (510).

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