Mechanical fitting polishing machine

Abstract

The application discloses a kind of mechanical accessory polishing machines, it is related to polishing processing technical field, the polishing machine includes rack body and polishing piece;It further includes clamping edge component, adjusting assembly and lateral limiting piece, the adjusting assembly is equipped on the end face of rack body, clamping edge component is two and symmetrically equipped on adjusting assembly, adjusting assembly can drive two clamping edge components away from each other or close to each other, the clamping edge component includes at least one brake sleeve body and clamping body, the clamping body is used to clamp one side of the bending plate;Brake sleeve body is fixed in the bottom end of clamping body and is rotatably installed on adjusting assembly;The lateral limiting piece is two and is equipped in the both ends of rack body with polishing piece as the center of symmetry, adjusting assembly is connected with two lateral limiting pieces.The present application has the advantages of simple structure, convenient to polish the inner folding angle of the bending plate, and ensures the polishing of the bending plate to be fixed firmly, avoids the change of the folding angle, the debris generated by polishing directly falls, easy to clean, and has high practicality.

Description

Technical Field

[0001] This invention relates to the field of polishing technology, specifically a polishing machine for mechanical parts. Background Technology

[0002] Polishing is a processing method that uses mechanical, chemical, or electrochemical processes to reduce the surface roughness of a workpiece, thereby obtaining a bright and smooth surface. Polishing involves using polishing tools and abrasive particles or other polishing media to modify and process the surface of a workpiece.

[0003] Mechanical parts refer to all components that work together with mechanical equipment to ensure normal operation. There are many types of mechanical parts, and the manufacturing process of mechanical parts is also complex and diverse. Some common mechanical parts are usually cast. After casting, the outer surface of the workpiece is polished to meet the surface roughness requirements of the mechanical parts.

[0004] For some mechanical parts made of bent plates, the limited processing space on the inner wall of the bend makes polishing difficult. The polishing method for bent plate parts involves fixing the bent plate and placing the edge of the polishing wheel at the inner bend angle for polishing, keeping the bend angle constant. However, existing polishing machines cannot fix bent plates with different bend angles, and the force applied to the plate during operation can easily cause changes in the bend angle. Summary of the Invention

[0005] The purpose of this invention is to provide a polishing machine for mechanical parts to solve the problems in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A polishing machine for mechanical parts includes a frame and a polishing component for polishing the inner corner of a bent plate. The frame has a supporting and lifting assembly, and the polishing component is mounted on the supporting and lifting assembly. The supporting and lifting assembly moves up and down, causing the polished portion of the polishing component to move away from or contact the inner corner of the bent plate. The supporting and lifting assembly has a polishing drive component that moves the polishing component along the length of the bent plate. The machine also includes edge-clamping components, an adjusting assembly, and lateral restraints. The adjusting assembly is located on the end face of the frame. Two edge-clamping components are symmetrically arranged on the adjusting assembly, and the adjusting assembly can drive the two edge-clamping components to move away from or closer to each other. The edge component includes a clamping body and at least one braking sleeve. The clamping body is used to clamp one side of the bending plate. The braking sleeve is fixed to the bottom end of the clamping body and rotatably mounted on the adjusting assembly. When the supporting lifting assembly drives the polished part of the polishing piece to contact the inner bend of the bending plate, the supporting lifting assembly contacts the bottom of the braking sleeve and prevents it from rotating. There are two lateral restraints, which are located at both ends of the frame body with the polishing piece as the center of symmetry. The adjusting assembly is connected to both lateral restraints. When the adjusting assembly drives the edge clamping component to move, it also drives the two lateral restraints to move synchronously with the edge clamping component on the same side to the side of the bending plate.

[0008] Based on the above technical solutions, the present invention also provides the following optional technical solutions:

[0009] In one alternative embodiment: the lateral limiting member includes a guide sleeve, a limiting guide rod, and a connecting rod. The guide sleeve is fixed to the frame body by a support. The limiting guide rod slides through the guide sleeve, with one end of the limiting guide rod facing the side wall of the bending plate. The connecting rod is located at the end of the limiting guide rod away from the bending plate. One end of the connecting rod is connected to the adjustment assembly and moves horizontally under the drive of the adjustment assembly.

[0010] In one alternative: a limiting pressure roller is provided on the end of the limiting guide rod facing the bending plate, the limiting pressure roller is rotatable at the end of the limiting guide rod and has a rubber protective layer on its outer wall.

[0011] In one alternative embodiment: the adjustment assembly includes a fixed frame, a bidirectional drive component, a sliding rod, and two mounting rods. The fixed frame is fixed to the frame body, and the sliding rod is laterally positioned on the fixed frame. The sliding rod has two sliding sleeves that slide on it. One end of each of the two mounting rods is fixedly connected to the side wall of the two sliding sleeves. The bidirectional drive component is positioned on the frame body and is used to drive the two mounting rods closer to or further away from each other. The brake sleeve is rotatably fitted onto the corresponding mounting rod. The mounting rod is also connected to a corresponding lateral restraint component, i.e., the end of the connecting rod is connected to the side of the mounting rod.

[0012] In one alternative: the bidirectional drive includes a double-ended lead screw, an adjusting screw sleeve, and an adjusting motor. The double-ended lead screw is rotatably mounted on a fixed frame, and the threads at both ends of the fixed frame are in opposite directions. There are two adjusting screw sleeves, which are respectively fixed to the ends of two mounting rods. The two ends of the double-ended lead screw pass through the two adjusting screw sleeves respectively. The adjusting motor is mounted on the fixed frame and is used to drive the double-ended lead screw to rotate.

[0013] In one alternative embodiment: the supporting and lifting assembly includes a support member, a fixed plate, and a lifting cylinder. The fixed plate is fixed to the frame and located below the adjusting assembly. The support member is located between the adjusting assembly and the fixed plate, and the support member and the fixed plate are connected by at least one lifting cylinder. The support member includes a support frame and at least one pair of brake racks. The support frame is connected to the top of the lifting cylinder. A polishing drive is located in the middle of the support frame. Each pair of brake racks is symmetrically arranged on the support frame with the polishing drive as the center of symmetry. The lower arc wall of the brake sleeve has external teeth that can mesh with the brake racks when the support member moves to the adjusting assembly.

[0014] In one alternative: the card body is V-shaped and the inner wall of the card body has a spacer, wherein the V-shaped card body can adapt to the thickness of the bent plate and can clamp the side of the bent plate.

[0015] In one alternative embodiment: the polishing drive component includes a transverse groove, a polishing screw, a polishing support, and a servo motor. The transverse groove is aligned with the length direction of the bending plate and is fixed to the support frame. The polishing screw is rotatably mounted on the transverse groove and one end is connected to the servo motor. The servo motor can drive the polishing screw to rotate reciprocally. The polishing support is slidably mounted on the transverse groove, and the polishing screw spirally passes through the polishing support. The bottom of the polishing component is mounted on the polishing support.

[0016] In one alternative: the polishing component includes a sleeve, a polishing rod, and a polishing wheel. The sleeve is fixed to the polishing drive component, and one end of the polishing rod is elastically inserted into the inside of the sleeve. The polishing wheel is rotatably located at the other end of the polishing rod and is driven by a polishing motor.

[0017] In one alternative: at least one branch pipe is provided on the side wall of the sleeve body, and a cleaning nozzle facing the inner corner of the bending plate is fixed at the end of the branch pipe body. The branch pipe body is also connected to a cleaning fan provided on the support and lifting assembly through an air guide pipe.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. In this invention, the distance between the two clamping components on the sides of the bent plate can be adjusted to adapt to the position of both sides of the bent plate;

[0020] 2. In this invention, the edge clamping component can rotate freely before polishing, thereby adapting to the bending angle of the bent plate; during polishing, the rotation of the edge clamping component can be restricted, ensuring that the edge of the bent plate will not move outward or inward during polishing, thus avoiding changes in the bending angle of the bent plate.

[0021] 3. The present invention has a simple structure, which facilitates polishing of the inner corner of the bent plate and ensures that the bent plate is firmly fixed during polishing, avoiding changes in the bending angle. The polishing debris falls directly off, making it easy to clean and highly practical. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the polishing machine in one embodiment of the present invention.

[0023] Figure 2 This is a schematic diagram of the support structure in one embodiment of the present invention.

[0024] Figure 3 This is a schematic diagram of the edge-locking component structure in one embodiment of the present invention.

[0025] Figure 4 This is a schematic diagram of the adjustment component structure in one embodiment of the present invention.

[0026] Figure 5 This is a schematic diagram of the polishing component structure in one embodiment of the present invention.

[0027] Figure reference numerals: 1. Frame body; 2. Bending plate; 3. Polishing part; 3. Sleeve body; 31. Polishing support rod; 32. Polishing motor; 33. Polishing wheel; 34. Support pipe body; 35. Cleaning nozzle; 36. Edge clamping part; 4. Clamping body; 41. Spacing pad; 42. Braking sleeve body; 43. External tooth body; 44. Adjustment component; 5. Fixed frame body; 51. Double-ended lead screw; 52. Adjusting screw sleeve; 53. Adjusting motor; 54. Sliding rod; 55. Mounting rod body; 56. Support piece; 6. Support frame body; 61. Horizontal rod groove; 62. Braking rack; 63. Polishing lead screw; 64. Polishing support; 65. Servo motor; 66. Cleaning fan; 67. Air guide pipe; 68. Fixed plate; 7. Lifting cylinder; 8. Lateral limiting part; 9. Guide sleeve; 91. Limiting pressure roller; 92. Limiting guide rod; 93. Connecting rod; 94. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. In the drawings or description, similar or identical parts are referred to by the same reference numerals, and in practical applications, the shape, thickness, or height of each component may be enlarged or reduced. The embodiments listed in this invention are merely illustrative and not intended to limit the scope of the invention. Any obvious modifications or changes made to this invention do not depart from the spirit and scope of the invention.

[0029] In one embodiment, such as Figures 1-3 As shown, a mechanical parts polishing machine includes a frame 1 and a polishing component 3 for polishing the inner corner of a bent plate 2. The frame 1 has a supporting and lifting assembly, and the polishing component 3 is disposed on the supporting and lifting assembly. The supporting and lifting assembly drives the polishing portion of the polishing component 3 away from or in contact with the inner corner of the bent plate 2 by moving up and down. The supporting and lifting assembly has a polishing drive component that drives the polishing component 3 to move along the length direction of the bent plate 2. It also includes edge-clamping components 4, an adjusting assembly 5, and a lateral restraint component 9. The adjusting assembly 5 is disposed on the end face of the frame 1. Two edge-clamping components 4 are symmetrically disposed on the adjusting assembly 5. The adjusting assembly 5 can drive the two edge-clamping components 4 to move away from or towards each other. 4 includes a clamping body 41 and at least one braking sleeve 43. The clamping body 41 is used to clamp one side of the bending plate 2. The braking sleeve 43 is fixed to the bottom end of the clamping body 41 and rotatably mounted on the adjusting assembly 5. When the supporting lifting assembly drives the polished part of the polishing part 3 to contact the inner bend of the bending plate 2, the supporting lifting assembly contacts the bottom of the braking sleeve 43 and prevents it from rotating. There are two lateral limiting members 9, which are located at both ends of the frame body 1 with the polishing part 3 as the center of symmetry. The adjusting assembly 5 is connected to both lateral limiting members 6. When the adjusting assembly 5 drives the clamping edge part 4 to move, it also drives the two lateral limiting members 6 to move synchronously with the clamping edge part 4 on the same side to the side of the bending plate 2.

[0030] In this embodiment, according to the size of the bending plate 2, the adjusting component 5 adjusts the position of the two clamping parts 4, so that the two sides of the bending plate 2 are respectively clamped inside the clamping body 41. Since the brake sleeve 43 and the adjusting component 5 are rotatably engaged, the clamping body 41 can rotate freely and cooperate with the bending angle of the bending plate 2; the two clamping bodies 41 clamp the two sides of the bending plate 2, thereby limiting the change of the bending angle of the bending plate 2; during the process of the adjusting component 5 driving the clamping parts 4 to move, the adjusting component 5 also drives the lateral limiting part 9 to approach the side part of the bending plate 2 and laterally limit it. The end of the component 9 contacts the outer wall of the bent plate 2, so that the lateral restraint 9 can restrict the upward movement of the bent plate 2; the cooperation of the two lateral restraints 9 and the two clamping parts 4 can quickly clamp the bent plate 2 with the opening of the bent plate 2 facing downward; the supporting lifting assembly drives the polishing component 3 to move upward and the polishing part of the polishing component 3 is placed at the inner corner of the bent plate 2, and the supporting lifting assembly is connected to the brake sleeve 43 and prevents the brake sleeve 43 from rotating, thereby restricting the free rotation of the clamping body 41 and ensuring that the bending angle of the bent plate 2 will not change during the polishing process of the polishing component 3;

[0031] In one embodiment, such as Figure 1As shown, the lateral limiting member 9 includes a guide sleeve 91, a limiting guide rod 93, and a connecting rod 94. The guide sleeve 91 is fixed to the frame body 1 by a support. The limiting guide rod 93 slides through the guide sleeve 91, and one end of the limiting guide rod 93 faces the side wall of the bending plate 2. The connecting rod 94 is located at the end of the limiting guide rod 93 away from the bending plate 2. One end of the connecting rod 94 is connected to the adjusting component 5, and the connecting rod 94 moves horizontally under the drive of the adjusting component 5. In this embodiment, when the adjusting component 5 drives the edge clamping component 4 to move, the connecting rod 94 moves with the edge clamping component 4 and pushes the limiting guide rod 93 to move inside the guide sleeve 91, so that the end of the limiting guide rod 93 near the bending plate 2 can move to the side of the bending plate 2. Thus, the limiting guide rod 93 can restrict the bending plate 2 from moving upward, preventing the bending plate 2 from moving upward and detaching from the polishing component 3 when the polishing component 3 polishes the inner corner of the bending plate 2.

[0032] In this embodiment, a limiting pressure roller 92 is provided on the end of the limiting guide rod 93 facing the bending plate 2. The limiting pressure roller 92 can rotate at the end of the limiting guide rod 93 and has a rubber protective layer on its outer wall. The limiting pressure roller 92 rolls into contact with the side wall of the bending plate 2 when the limiting guide rod 93 is close to the side wall of the bending plate 2, so as to avoid scratching the outer wall of the bending plate 2. The connecting rod 94 further protects the side wall of the bending plate 2 and improves the holding force.

[0033] In one embodiment, such as Figure 1 and Figure 4 As shown, the adjustment assembly 5 includes a fixed frame 51, a bidirectional drive, a sliding rod 55, and two mounting rods 56. The fixed frame 51 is fixed to the frame 1, and the sliding rod 55 is laterally arranged on the fixed frame 51. The sliding rod 55 has two sliding sleeves that slide on it. One end of each of the two mounting rods 56 is fixedly connected to the side wall of the two sliding sleeves. The bidirectional drive is arranged on the frame 1 and is used to drive the two mounting rods 56 to move closer or further apart. The brake sleeve 43 is rotatably sleeved on the corresponding mounting rod 56. The mounting rod 56 is also connected to the corresponding lateral restraint 9, that is, the end of the connecting rod 94 is connected to the side of the mounting rod 56. In this embodiment, the bidirectional drive can drive the two mounting rods 56 to move closer or further apart along the sliding rod 55, thereby enabling the synchronous movement of the lateral restraint 9 and the clamping component 4.

[0034] In this embodiment, the bidirectional drive includes a double-ended lead screw 52, ​​an adjusting screw sleeve 53, and an adjusting motor 54. The double-ended lead screw 52 is rotatably mounted on a fixed frame 51, and the threads at both ends of the fixed frame 51 are in opposite directions. There are two adjusting screw sleeves 53, which are respectively fixed to the ends of two mounting rods 56. The two ends of the double-ended lead screw 52 pass through the two adjusting screw sleeves 53. The adjusting motor 54 is mounted on the fixed frame 51 and is used to drive the double-ended lead screw 52 to rotate. The adjusting motor 54 drives the double-ended lead screw 52 to rotate, and the double-ended lead screw 52 drives the two adjusting screw sleeves 53 to move closer or further apart, thereby enabling the two mounting rods 56 to move closer or further apart.

[0035] In one embodiment, such as Figures 1-3 As shown, the supporting and lifting assembly includes a support member 6, a fixing plate 7, and a lifting cylinder 8. The fixing plate 7 is fixed to the frame body 1 and located below the adjusting assembly 5. The support member 6 is located between the adjusting assembly 5 and the fixing plate 7, and the support member 6 and the fixing plate 7 are connected by at least one lifting cylinder 8. The support member 6 includes a support frame 61 and at least one pair of brake racks 63. The support frame 61 is connected to the top of the lifting cylinder 8. A polishing drive is located in the middle of the support frame 61. Each pair of brake racks 63 is symmetrically arranged on the support frame 61 with the polishing drive as the center of symmetry. The brake sleeve 43 has a lower arc. The wall has an external tooth 44. When the support 6 moves to the adjustment component 5, the external tooth 44 can mesh with the brake rack 63. In this embodiment, the lifting cylinder 8 drives the support 6 to rise and fall by extension and retraction. As a result, the brake rack 63 and the polishing part 3 both move upward. When the top of the polishing part 3 is placed at the inner corner of the bending plate 2, the brake rack 63 and the external tooth 44 are in a meshing state. Thus, the brake rack 63 can restrict the rotation of the brake sleeve 43 to ensure that the clamping body 41 clamps the side of the bending plate 2, avoids the side of the bending plate 2 from bending, and further avoids the bending angle of the bending plate 2 from changing.

[0036] In one embodiment, such as Figure 3 As shown, the card body 41 is V-shaped and the inner wall of the card body 41 has a spacer 42. The V-shaped card body 41 can adapt to the thickness of the bending plate 2 and can clamp the side of the bending plate 2. The spacer 42 can protect the side of the bending plate 2 and prevent scratches when the card body 41 clamps the side of the bending plate 2.

[0037] In one embodiment, such as Figure 2As shown, the polishing drive includes a transverse groove 62, a polishing screw 64, a polishing support 65, and a servo motor 66. The transverse groove 62 is aligned with the length of the bent plate 2 and is fixed on the support frame 61. The polishing screw 64 is rotatably mounted on the transverse groove 62, and one end is connected to the servo motor 66. The servo motor 66 can drive the polishing screw 64 to rotate reciprocally. The polishing support 65 is slidably mounted on the transverse groove 62, and the polishing screw 64 spirally passes through the polishing support 65. The bottom of the polishing part 3 is mounted on the polishing support 65. In this embodiment, the servo motor 66 drives the polishing screw 64 to rotate in both directions, thereby causing the polishing support 65 to move axially back and forth on the polishing screw 64. Consequently, the polishing part 3 moves back and forth with the polishing support 65, so that the top of the polishing part 3 polishes the inner corner of the bent plate 2.

[0038] In one embodiment, such as Figure 1 and Figure 5 As shown, the polishing component 3 includes a sleeve body 31, a polishing support rod 32, and a polishing wheel 34. The sleeve body 31 is fixed on the polishing drive component, and one end of the polishing support rod 32 is elastically inserted into the sleeve body 31. The polishing wheel 34 is rotatably disposed at the other end of the polishing support rod 32 and is driven by the polishing motor 33. In this embodiment, since the polishing support rod 32 elastically extends and retracts into the sleeve body 31, the polishing wheel 34 can adapt to the height of the bent plate 2, so that the polishing edge of the polishing wheel 34 is placed at the inner corner of the bent plate 2. The state of the polishing motor 33 driving the polishing wheel 34 to rotate, combined with the state of the polishing drive component driving the polishing component 3 to reciprocate along the length direction of the bent plate 2, can perform comprehensive polishing treatment on the inner corner of the bent plate 2.

[0039] In one embodiment, such as Figure 2 and 5 As shown, at least one branch pipe 35 is also provided on the side wall of the sleeve body 31. A cleaning nozzle 36 is fixed at the end of the branch pipe 35 and faces the inner corner of the bending plate 2. The branch pipe 35 is also connected to the cleaning fan 67 provided on the supporting lifting assembly through the air guide pipe 68. In this embodiment, the cleaning fan 67 guides the airflow through the air guide pipe 68 to the branch pipe 35. The airflow is guided through the branch pipe 35 to the cleaning nozzle 36 and sprayed by the cleaning nozzle 36 towards the inner corner of the bending plate 2. The airflow at the inner corner of the bending plate 2 can carry away the debris generated by polishing. The debris falls directly and passes through the frame body 1, and can fall on the fixed plate 7, so that it can be collected by the fixed plate 7.

[0040] The above embodiment provides a polishing machine for mechanical parts. According to the size of the bending plate 2, the adjusting component 5 adjusts the positions of the two edge-clamping parts 4, respectively clamping the two sides of the bending plate 2 inside the clamping body 41. Because the brake sleeve 43 rotates in conjunction with the adjusting component 5, the clamping body 41 can rotate freely and adjust to the bending angle of the bending plate 2. The two clamping bodies 41 clamp the two sides of the bending plate 2, thereby limiting the change in the bending angle of the bending plate 2. During the process of the adjusting component 5 driving the edge-clamping parts 4 to move, the adjusting component 5 also drives the lateral limiting part 9 to approach the edge of the bending plate 2. The side and the end of the lateral limiting member 9 contact the outer wall of the bending plate 2, so that the lateral limiting member 9 can restrict the bending plate 2 from moving upward; the cooperation of the two lateral limiting members 9 and the two clamping parts 4 can quickly clamp the bending plate 2 with the opening of the bending plate 2 facing downward; the supporting lifting assembly drives the polishing part 3 to move upward and the polishing part of the polishing part 3 is placed at the inner corner of the bending plate 2, and the supporting lifting assembly is connected to the brake sleeve 43 and prevents the brake sleeve 43 from rotating, thereby restricting the free rotation of the clamping body 41 and ensuring that the bending angle of the bending plate 2 will not change during the polishing process of the polishing part 3.

[0041] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A polishing machine for mechanical parts, comprising a frame and a polishing component for polishing the inner corner of a bent plate, the frame having a supporting and lifting assembly, the polishing component being disposed on the supporting and lifting assembly, and the supporting and lifting assembly driving the polishing portion of the polishing component away from or in contact with the inner corner of the bent plate by moving up and down, the supporting and lifting assembly having a polishing drive component for driving the polishing component to move along the length direction of the bent plate; characterized in that, It also includes edge clamping components, adjustment assemblies, and lateral restraints; The adjustment assembly is located on the end face of the frame body. There are two edge clamping parts, which are symmetrically arranged on the adjustment assembly. The adjustment assembly can drive the two edge clamping parts to move away from each other or closer to each other. The locking component includes a locking body and at least one braking sleeve body; The clamp is used to hold one side of the bent plate; The brake sleeve is fixed to the bottom end of the card body and rotatably mounted on the adjustment assembly. When the supporting lifting assembly drives the polished part of the polished part to contact the inner bend of the bending plate, the supporting lifting assembly contacts the bottom of the brake sleeve and prevents it from rotating. The lateral restraints are two in number and are located at both ends of the frame body with the polished part as the center of symmetry. The adjusting component is connected to both lateral restraints, and when the adjusting component moves the edge-locking component, it also drives the two lateral restraints to move synchronously to the side of the bending plate along with the edge-locking component on the same side. The lateral limiting component includes a guide sleeve, a limiting guide rod, and a connecting rod; the guide sleeve is fixed to the frame body by a support, the limiting guide rod slides through the guide sleeve and one end of the limiting guide rod faces the side wall of the bending plate; the connecting rod is located at the end of the limiting guide rod away from the bending plate, one end of the connecting rod is connected to the adjustment component and moves horizontally under the drive of the adjustment component; The supporting and lifting assembly includes a support component, a fixing plate, and a lifting cylinder; The fixed plate is fixed to the frame and located below the adjustment assembly. The support is located between the adjustment assembly and the fixed plate, and the support is connected to the fixed plate by at least one lifting cylinder. The support includes a support frame and at least one pair of brake racks. The support frame is connected to the top of the lifting cylinder, and the polishing drive is located in the middle of the support frame. Each pair of brake racks is symmetrically arranged on the support frame with the polishing drive as the center of symmetry. The lower arc wall of the brake sleeve has external teeth, which can mesh with the brake racks when the support moves to the adjustment assembly. The adjustment assembly includes a fixed frame, a bidirectional drive component, a sliding rod, and two mounting rods. The fixed frame is fixed to the machine frame and the sliding rod is horizontally arranged on the fixed frame. The sliding rod has two sliding sleeves that slide on it. One end of each of the two mounting rods is fixedly connected to the sidewalls of the two sliding sleeves respectively. The bidirectional drive component is provided on the frame and is used to drive the two mounting rods to move closer or further apart from each other. The brake sleeve is rotatably mounted on the corresponding mounting rod, and the mounting rod is also connected to the corresponding lateral restraint, that is, the end of the connecting rod is connected to the side of the mounting rod. The bidirectional drive unit includes a double-ended lead screw, an adjusting screw sleeve, and an adjusting motor; The double-ended lead screw is rotatably mounted on the fixed frame, and the threads at both ends of the fixed frame are in opposite directions. There are two adjusting screw sleeves, which are fixed to the ends of the two mounting rods respectively. The two ends of the double-ended screw pass through the two adjusting screw sleeves respectively. The adjusting motor is located on the fixed frame and is used to drive the double-ended screw to rotate.

2. The mechanical parts polishing machine according to claim 1, characterized in that, The limiting guide rod is provided with a limiting pressure roller at the end opposite to the bending plate. The limiting pressure roller can rotate at the end of the limiting guide rod and has a rubber protective layer on its outer wall.

3. The mechanical parts polishing machine according to claim 1, characterized in that, The card body is V-shaped and has a spacer on its inner wall. The V-shaped card body can adapt to the thickness of the bent plate and can clamp the side of the bent plate.

4. The mechanical parts polishing machine according to claim 1, characterized in that, The polishing drive component includes a transverse groove, a polishing screw, a polishing support, and a servo motor; The transverse groove is aligned with the length direction of the bending plate and is fixed on the support frame. The polishing screw is rotatably mounted on the transverse groove and one end is connected to the servo motor. The servo motor can drive the polishing screw to rotate in both directions. The polishing support is slidably disposed on the transverse groove and the polishing screw spirally passes through the polishing support. The bottom of the polishing part is disposed on the polishing support.

5. The mechanical parts polishing machine according to claim 1, characterized in that, The polishing component includes a sleeve, a polishing rod, and a polishing wheel. The sleeve is fixed on the polishing drive component, and one end of the polishing rod is elastically inserted into the inside of the sleeve. The polishing wheel is rotatably located at the other end of the polishing rod and is driven by a polishing motor.

6. The mechanical parts polishing machine according to claim 5, characterized in that, At least one branch pipe is also provided on the side wall of the sleeve body. The end of the branch pipe is fixed with a cleaning nozzle facing the inner corner of the bending plate. The branch pipe is also connected to the cleaning fan provided on the support and lifting assembly through an air guide pipe.

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