A correction mechanism and correction method for hydraulic cylinder barrel

Abstract

The present invention is applicable to the technical field of cylinder correction mechanism, and provides a cylinder correction mechanism and correction method for a hydraulic cylinder, including a base, a rack is installed at the bottom of the base, and a clamping assembly and two sets of straightening assemblies are slidably connected to the top of the base. The device solves the problem that the existing cylinder correction method requires the cylinder to be moved back and forth, and the position of the cylinder after the second positioning will deviate from the position of the cylinder after the first positioning, thereby affecting the accuracy of internal and external corrections. The device is provided with a transfer assembly, and the connecting table drives the adjustment assembly and the positioning assembly to move respectively. The positioning assembly moves to a position relative to the cylinder, and the conical block and the clamping assembly of the positioning assembly cooperate to position the cylinder. When the cylinder needs internal correction, the transfer assembly removes the positioning assembly, moves the adjustment assembly to a position relative to the cylinder, and uses the adjustment assembly and the straightening assembly to cooperate to correct the inside of the cylinder. In this process, there is no need to move the cylinder, which greatly improves the correction accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of cylinder correction mechanisms, and more specifically, to a cylinder correction mechanism and a correction method for a hydraulic oil cylinder. Background Art

[0002] A hydraulic cylinder is a device that converts hydraulic energy into mechanical energy. It is widely used in various engineering machinery and equipment, such as excavators, cranes, hydraulic presses, etc. The hydraulic cylinder is mainly composed of a cylinder barrel, a piston, a piston rod and other structures. During use, the performance of the hydraulic cylinder may deteriorate due to wear, corrosion, deformation and other reasons. At this time, the cylinder barrel needs to be corrected.

[0003] The existing correction method is to place the cylinder on a processing table, and then the staff uses correction equipment to correct the bending and wear on the cylinder surface to restore the performance of the cylinder and increase its service life. However, this method requires manual intervention. For this reason, the staff has improved the cylinder correction method, and improved the manual correction to mechanical correction, that is, using a robot to transfer the cylinder between the external correction mechanism and the internal correction mechanism, and then perform automated mechanical correction.

[0004] However, the improved cylinder correction method requires that the cylinder be corrected externally separately, and then the cylinder be repositioned through a positioning device, and then internal correction is performed. This process not only requires the cylinder to be moved back and forth, but also the position of the cylinder after the second positioning will deviate from the position of the cylinder after the first positioning, thereby affecting the accuracy of the internal and external corrections. Summary of the invention

[0005] In view of the deficiencies in the prior art, an object of the present invention is to provide a correction mechanism and a correction method for a hydraulic cylinder barrel.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a mechanism for correcting the cylinder barrel of a hydraulic oil cylinder, comprising a base, a rack is installed at the bottom of the base, a clamping assembly and two groups of straightening assemblies are slidably connected at the top of the base, a transfer assembly is installed at one end of the top of the rack, the two groups of straightening assemblies are respectively slidably connected between the clamping assembly and the transfer assembly, a positioning assembly and an adjustment assembly are slidably connected at the top of the transfer assembly, and a correction assembly is installed at one end of the adjustment assembly close to the straightening assembly.

[0007] Among them, the adjustment component includes an adjustment column slidably connected to the top of the transfer component and an adjustment arm horizontally slidably connected to the top of the adjustment column, the correction component is installed at one end of the adjustment arm close to the straightening component, an adjustment frame is installed on one side of the adjustment column, an adjustment cylinder is installed on the top of the adjustment frame, and the output end of the adjustment cylinder is connected to the end of the adjustment arm away from the correction component.

[0008] The correction assembly includes a first plate body installed at the end of an adjusting arm and a connecting rod connected to the first plate body on a side away from the adjusting arm, the connecting rod is connected to a third plate body at one end away from the first plate body, a second plate body is arranged between the first plate body and the third plate body, the connecting rod passes through the second plate body, a correction cylinder is installed on the side of the second plate body close to the first plate body, the piston rod of the correction cylinder passes through the second plate body and is fitted with a support hinge block, an support spring is connected between the support hinge block and the second plate body, a center hole is provided at the center of the support hinge block, and an support chuck is installed on the side of the support hinge block away from the support spring, and the center hole of the support chuck is arranged corresponding to the center hole at the center of the support hinge block.

[0009] The top and bottom of the support hinge block are hinged with a support auxiliary rod, and the outer side wall of the second plate body is symmetrically connected to two support auxiliary blocks, one side of the two support auxiliary blocks is hinged with a support rod, and the end of the support rod away from the support auxiliary block is hinged with a support connecting block, and the two sides of the two support connecting blocks that repel each other are connected with an arc plate, the two support auxiliary rods are arranged corresponding to the two support rods, and the end of the support auxiliary rod away from the support hinge block is hinged to the middle part of the corresponding support rod.

[0010] The present invention is further configured as follows: two correction auxiliary blocks are symmetrically installed on the outer side wall of the third plate body, and a correction rod is hinged on one side of the two correction auxiliary blocks, and a correction block is hinged on one end of the correction rod away from the correction auxiliary block, and an inclined portion is provided on the two repelling correction blocks. A guide rod is connected to the side of the third plate body away from the connecting rod, and a stopper is slidably connected to the outer side wall of the guide rod, and a correction spring is connected between the stopper and the third plate body, and two correction auxiliary rods are symmetrically hinged on both sides of the stopper, and the two correction auxiliary rods are arranged corresponding to the two correction rods, and the end of the correction auxiliary rod away from the stopper is hinged to the middle part of the corresponding correction rod.

[0011] The present invention is further configured as follows: a positioning mechanism is provided at the hinge of the correction rod and the correction block, the positioning mechanism includes a locking cylinder, the locking cylinder is installed on the correction block, and the piston rod of the locking cylinder passes through the correction rod and is connected to a limiting plate, and a positioning spring is provided between the limiting plate and the correction rod.

[0012] By adopting the above technical solution, the piston rod of the locking cylinder is extended, and the positioning spring gradually changes from an extruded state to an extended state. The extrusion force of the positioning spring on the correction rod is reduced, and the correction block can swing relative to the correction rod, thereby allowing the correction block to be adjusted according to the angle of the inner wall of the cylinder, thereby improving the compatibility of the correction assembly.

[0013] When the correction assembly moves toward the inside of the cylinder as a whole, the positioning mechanism at the hinge point of the correction rod and the correction block is released, and the correction block swings relative to the correction rod, but it swings slowly due to the elastic force of the positioning spring. When the end of the correction block contacts the inner wall of the cylinder, the correction block is squeezed and swung by the inner wall of the cylinder, so that the inclined portion on the correction block contacts the inner wall of the end of the cylinder, and then the cylinder rotates to achieve the purpose of removing scratches on the inner wall of the end of the cylinder. The position of the block is adaptively adjusted by the correction spring to avoid the situation where the correction block cannot rotate during the swinging process. The correction block adjusts its own angle and position according to the scratches at different positions. There is no need to design and install a scraper mechanism separately, which greatly reduces the cost. The correction block adjusts the angle after the processing surface is thoroughly processed to avoid the situation where the scratches are not completely removed.

[0014] The present invention is further configured as follows: the clamping assembly includes a bearing seat slidably connected to the top of the rack and a driving motor arranged on the side of the bearing seat away from the straightening assembly, and the output end of the driving motor passes through the bearing seat and is connected to a three-jaw chuck.

[0015] The present invention is further configured as follows: the two groups of straightening assemblies each include a movable seat slidably connected to the top of the rack and a support platform installed on the top of the movable seat, a fixed plate is installed on the side of the support platform away from the rack, a driving cylinder is horizontally installed on the side of the fixed plate away from the support platform, a piston rod of the driving cylinder passes through the fixed plate and is connected to a fixed frame, a wedge-shaped pressure block is installed on the top of the fixed frame, a first transmission mechanism is installed on the bottom of the movable seat, and the first transmission mechanism is meshed and connected to the rack.

[0016] The present invention is further configured as follows: a slide table is vertically slidably connected to one side of the support table, an auxiliary frame is hingedly installed on one side of the slide table close to the rack, and a V-shaped groove is provided on the top of the auxiliary frame.

[0017] The present invention is further configured as follows: a mounting seat is installed on one side of the support platform, a lifting cylinder is vertically installed at the bottom of the mounting seat, and a piston rod of the lifting cylinder passes through the bottom of the mounting seat and is connected to the slide table.

[0018] By adopting the above technical solution, the moving seats of the two sets of straightening assemblies slide horizontally on the top of the rack, and the moving seats drive the supporting platform, the fixed frame and the wedge-shaped pressure block to move synchronously, thereby adjusting the position of the wedge-shaped pressure block. At the same time, the lifting cylinder drives the slide table and the auxiliary frame to move upward, so that the auxiliary frame supports the cylinder barrel, and the driving motor drives the three-jaw chuck and the cylinder barrel to rotate. The two sets of straightening assemblies continue to move along the horizontal extension direction of the rack, so that the auxiliary frame is displaced on the side wall of the cylinder barrel. If it cannot move, it means that the shape of the cylinder barrel is deformed at this position, the cylinder barrel stops rotating, and the auxiliary frame is used to move up and down to extrude and correct the cylinder barrel.

[0019] After the auxiliary frame corrects the cylinder, the driving cylinder is used to drive the fixed frame and the wedge-shaped pressure block to move, so that the wedge-shaped pressure block fits the outer wall of the cylinder. In this state, the cylinder rotates, causing the wedge-shaped pressure block to scrape and adjust the outer wall of the cylinder to ensure the flatness of the outer wall of the cylinder and avoid scratches and impurities caused by the extrusion of the auxiliary frame.

[0020] The present invention is further configured as follows: the transfer assembly includes a support plate installed on the top of the rack and two groups of transmission wheels rotatably connected to the top of the support plate, the two groups of transmission wheels are transmission-connected with transmission belts, the transmission belts are connected to two connecting platforms, the two connecting platforms are slidably connected to the top of the support plate, the adjustment assembly is installed on the top of one of the connecting platforms, and the positioning assembly is installed on the top of the other connecting platform, a transfer motor is installed on one side of the support plate, and a second transmission mechanism is transmission-connected between the output end of the transfer motor and one of the groups of transmission wheels.

[0021] The present invention is further configured as follows: the positioning assembly includes a positioning seat installed on the top of the corresponding connecting platform and a positioning cylinder installed on the side of the positioning seat away from the straightening assembly, and the piston rod of the positioning cylinder passes through the positioning seat and is connected to a tapered block.

[0022] By adopting the above technical solution, when the cylinder needs to be positioned, the two connecting tables move synchronously, and the connecting tables drive the adjustment component and the positioning component to move respectively, the positioning component moves to a position relative to the cylinder, and the conical block and the clamping component of the positioning component cooperate to position the cylinder. When the cylinder needs internal correction, the transfer component removes the positioning component, moves the adjustment component to a position relative to the cylinder, and uses the adjustment component and the correction component to correct the inside of the cylinder. In this process, there is no need to move the cylinder, which greatly improves the correction accuracy.

[0023] The positioning seat provides auxiliary support for the positioning cylinder, and the positioning cylinder drives the tapered block to move, thereby adjusting the position of the tapered block. When the three-jaw chuck clamps the cylinder, the clamping assembly moves as a whole toward the positioning assembly at the top of the base. At this time, the conical surface of the tapered block first fits with the opening of the cylinder. As the cylinder gradually moves toward the tapered block, the tapered block gradually slides into the inside of the cylinder, thereby clamping and positioning the cylinder.

[0024] A method for correcting a hydraulic cylinder barrel, according to the above-mentioned correction mechanism for a hydraulic cylinder barrel, comprises the following steps:

[0025] S1. The staff will use the robot to clamp the cylinder that needs to be adjusted and move it to the top of the rack, and then use the clamping assembly to clamp one end of the cylinder in place and wait for the correction work.

[0026] S2. Then the clamping assembly drives the cylinder barrel toward the positioning assembly, the clamping assembly and the positioning assembly cooperate to clamp and position the cylinder barrel, and the two sets of straightening assemblies cooperate to squeeze and straighten the outer wall of the cylinder barrel.

[0027] S3. After the outer wall of the cylinder is adjusted, the cylinder is separated from the positioning assembly, and the transfer assembly is used to drive the positioning assembly and the adjustment assembly to move, so that the adjustment assembly moves to the position corresponding to the cylinder, and the adjustment assembly extends to the inside of the cylinder to position the cylinder.

[0028] S4. While the adjustment component is extended into the cylinder, the correction component is also extended into the cylinder. The correction component shapes the inner wall of the cylinder. The correction component is in a contracted state. First, the chuck is stretched to clamp the piston rod of the correction cylinder, and then the correction cylinder is used to drive the expansion hinge block to move. The expansion hinge block pushes one end of the expansion auxiliary rod to move, and the other end also pushes the expansion rod to swing. The expansion rod and the expansion connecting block swing at the same time and drive the corresponding arc plate to fit the inner wall of the cylinder. The cylinder is shaped by the expansion of the two arc plates.

[0029] S5. When the inside of the cylinder needs to be cleaned of scratches for correction, the correction component is adjusted to the cleaning state, and the scratches inside the cylinder can be cleaned.

[0030] In summary, the present application includes at least one of the following beneficial technical effects:

[0031] (1) By setting up a transfer assembly, that is, when the cylinder needs to be positioned, the two connecting tables move synchronously, and the connecting tables drive the adjustment assembly and the positioning assembly to move respectively. The positioning assembly moves to a position relative to the cylinder, and the conical block and the clamping assembly of the positioning assembly cooperate to position the cylinder. When the cylinder needs internal correction, the transfer assembly removes the positioning assembly and moves the adjustment assembly to a position relative to the cylinder. The adjustment assembly and the correction assembly cooperate to correct the inside of the cylinder. In this process, there is no need to move the cylinder, which greatly improves the correction accuracy.

[0032] (2) When the piston rod of the correction cylinder is clamped by the expansion chuck, the correction cylinder is used to drive the expansion hinge block to move. The expansion hinge block pushes one end of the expansion auxiliary rod to move, and the other end also pushes the expansion rod to swing. The expansion rod and the expansion connection block swing at the same time and drive the corresponding arc plate to fit the inner wall of the cylinder. The cylinder is shaped by expanding the two arc plates. In this state, the cylinder can also be positioned by the adjustment component and the correction component, and the straightening component can perform external correction operations at the same time, which avoids the situation where the cylinder is moved back and forth and multiple positioning affects the correction accuracy.

[0033] (3) By setting a positioning mechanism, the piston rod of the locking cylinder is extended, and the positioning spring gradually changes from an extruded state to an extended state. The extrusion force of the positioning spring on the correction rod is reduced, and the correction block can swing relative to the correction rod, thereby allowing the correction block to be adjusted according to the angle of the inner wall of the cylinder, thereby improving the compatibility of the correction component.

[0034] (4) When the correction assembly moves toward the inside of the cylinder as a whole, the positioning mechanism at the hinge point of the correction rod and the correction block is released, and the correction block swings relative to the correction rod, but it swings slowly due to the elastic force of the positioning spring. When the end of the correction block contacts the inner wall of the cylinder, the correction block is squeezed and swung by the inner wall of the cylinder, so that the inclined portion on the correction block contacts the inner wall of the end of the cylinder. After that, the cylinder rotates to achieve the purpose of removing scratches on the inner wall of the end of the cylinder. The position of the stopper is adaptively adjusted by the correction spring to avoid the situation where the correction block cannot rotate during the swinging process. The correction block adjusts its own angle and position according to the scratches at different positions. There is no need to design and install a scraper mechanism separately, which greatly reduces the cost. In addition, the correction block adjusts the angle after the processing surface is thoroughly processed, which avoids the situation where the scratches are not completely removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 The present invention is a schematic diagram of the overall structure of a hydraulic cylinder barrel correction mechanism.

[0036] Figure 2 It is a schematic diagram of the connection structure between the straightening assembly and the base in the present invention.

[0037] Figure 3 It is a schematic diagram of the structure of the straightening assembly in the present invention.

[0038] Figure 4 It is a schematic diagram of the connection structure of the transfer component, the positioning component and the adjustment component in the present invention.

[0039] Figure 5 It is a schematic diagram of the structure of the correction component in the present invention.

[0040] Figure 6 for Figure 5 Schematic diagram of the side structure.

[0041] Figure 7 It is a schematic diagram of the connection structure of the expansion rod and the expansion connection block in the present invention.

[0042] Figure 8 It is a schematic diagram of the connection structure between the correction rod and the correction block in the present invention.

[0043] Fig. 9 for Figure 8 Schematic diagram of the side structure.

[0044] Fig.10It is a schematic diagram of the positioning mechanism structure in the present invention.

[0045] Description of reference numerals: 1, base; 11, rack;

[0046] 2. Clamping assembly; 21. Bearing seat; 22. Driving motor; 23. Three-jaw chuck;

[0047] 3. Straightening assembly; 31. Moving seat; 32. Support platform; 33. Fixed frame; 34. Wedge-shaped pressure block; 35. Fixed plate; 36. Driving cylinder; 37. First transmission mechanism; 38. Mounting seat; 39. Lifting cylinder; 391. Sliding table; 392. Auxiliary frame;

[0048] 4. Transfer assembly; 41. Support plate; 43. Transmission wheel; 44. Transmission belt; 45. Transfer motor; 46. Second transmission mechanism; 47. Connecting platform;

[0049] 5. Positioning assembly; 51. Positioning seat; 52. Positioning cylinder; 53. Conical block;

[0050] 6. Adjustment assembly; 61. Adjustment column; 62. Adjustment frame; 63. Adjustment cylinder; 64. Adjustment arm;

[0051] 7. Correction assembly; 71. First plate; 72. Connecting rod; 73. Second plate; 74. Third plate; 75. Correction auxiliary block; 76. Correction rod; 77. Correction block; 78. Arc plate; 781. Spreading connection block; 79. Spreading auxiliary block; 791. Spreading rod; 792. Correction cylinder; 793. Spreading spring; 794. Spreading hinge block; 795. Spreading auxiliary rod; 796. Spreading chuck; 797. Inclined portion; 798. Guide rod; 799. Stopper; 7901. Correction spring; 7902. Correction auxiliary rod;

[0052] 8. Positioning mechanism; 81. Locking cylinder; 82. Positioning spring. DETAILED DESCRIPTION

[0053] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0054] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0055] See also Figure 1-10 , the present invention provides the following technical solutions:

[0056] Embodiment 1, a hydraulic cylinder barrel correction mechanism, comprising a base 1, a rack 11 is installed at the bottom of the base 1, a clamping assembly 2 is slidably connected to the top of the base 1, the base 1 is used to support the clamping assembly 2, the clamping assembly 2 is used to position the cylinder barrel that needs to be corrected, and the specific structure of the clamping assembly 2 is as follows:

[0057] See also Figure 1 The clamping assembly 2 includes a bearing seat 21 slidably connected to the top of the rack 11 and a driving motor 22 arranged on one side of the bearing seat 21. The output end of the driving motor 22 passes through the bearing seat 21 and is connected to a three-jaw chuck 23. A displacement mechanism is installed at the bottom of the bearing seat 21. The displacement mechanism is composed of a servo motor and a gear, and the gear is meshed with the rack 11. When the servo motor drives the gear to rotate, the gear moves on the rack 11, thereby driving the bearing seat 21 to slide on the top of the base 1. At the same time, the bearing seat 21 drives the driving motor 22 and the three-jaw chuck 23 to move. The three-jaw chuck 23 is used to clamp the cylinder. After the cylinder is clamped, the driving motor 22 is used to drive the three-jaw chuck 23 to rotate, thereby driving the cylinder to rotate, thereby facilitating subsequent correction operations.

[0058] See also Figure 1 and Figure 2 The top of the base 1 is slidably connected with two sets of straightening components 3, which are used to correct the bending of the horizontally clamped cylinder. The specific structure of the straightening components 3 is as follows:

[0059] See also Figure 2 and Figure 3 The two sets of straightening assemblies 3 both include a moving seat 31 slidably connected to the top of the rack 11 and a support platform 32 installed on the top of the moving seat 31. A fixed plate 35 is installed on the side of the support platform 32 away from the rack 11. A driving cylinder 36 is horizontally installed on the side of the fixed plate 35 away from the support platform 32. The piston rod of the driving cylinder 36 passes through the fixed plate 35 and is connected to the fixed frame 33. A wedge-shaped pressure block 34 is installed on the top of the fixed frame 33. A first transmission mechanism 37 is installed at the bottom of the moving seat 31. The first transmission mechanism 37 is meshed and connected with the rack 11. The first transmission mechanism 37 is composed of a transmission motor and a transmission gear. The transmission gear is meshed with the rack 11. The transmission motor is used to drive the transmission gear to rotate, causing the transmission gear to move on the rack 11, so that the moving seat 31 slides on the top of the base 1.

[0060] In this embodiment, refer to Figure 2 and Figure 3A slide 391 is vertically slidably connected to one side of the support platform 32, an auxiliary frame 392 is hingedly installed on one side of the slide 391 close to the rack 11, a V-shaped groove is provided on the top of the auxiliary frame 392, a mounting seat 38 is installed on one side of the support platform 32, a lifting cylinder 39 is vertically installed at the bottom of the mounting seat 38, a piston rod of the lifting cylinder 39 passes through the bottom of the mounting seat 38 and is connected to the slide 391, and when the moving seat 31 moves, it drives the support platform 32, the fixed frame 33 and the wedge-shaped pressing block 34 to move synchronously, thereby adjusting the wedge-shaped The position of the pressure block 34, at the same time, the lifting cylinder 39 drives the slide 391 and the auxiliary frame 392 to move up, so that the auxiliary frame 392 supports the cylinder. After the cylinder is supported, the driving motor 22 drives the three-jaw chuck 23 and the cylinder to rotate, and the two sets of straightening components 3 continue to move along the horizontal extension direction of the rack 11, so that the auxiliary frame 392 is displaced on the side wall of the cylinder. If it cannot move, it means that the shape of the cylinder at this position is deformed, the cylinder stops rotating, and the auxiliary frame 392 is used to move up and down to extrude and correct the cylinder.

[0061] See also Figure 4 A positioning assembly 5 is provided at one end of the top of the rack 11. The positioning assembly 5 is used to assist in supporting the cylinder to prevent the three-jaw chuck 23 from sagging when clamping the cylinder. The specific structure of the positioning assembly 5 is as follows:

[0062] In this embodiment, refer to Figure 4 The positioning assembly 5 includes a positioning seat 51 arranged on the top of the base 1 and a positioning cylinder 52 installed on the side of the positioning seat 51 away from the straightening assembly 3. The piston rod of the positioning cylinder 52 passes through the positioning seat 51 and is connected to a tapered block 53. The positioning seat 51 is used to provide auxiliary support for the positioning cylinder 52. The positioning cylinder 52 is used to drive the tapered block 53 to move, thereby adjusting the position of the tapered block 53. When the three-jaw chuck 23 clamps the cylinder barrel, the clamping assembly 2 moves as a whole toward the direction of the positioning assembly 5 at the top of the base 1. At this time, the conical surface of the tapered block 53 first fits with the opening of the cylinder barrel. As the cylinder barrel gradually moves toward the direction of the tapered block 53, the tapered block 53 gradually slides into the interior of the cylinder barrel, thereby performing preliminary auxiliary clamping and positioning of the cylinder barrel.

[0063] Embodiment 2: Since the existing cylinder correction mechanism needs to perform external correction on the cylinder separately, and then reposition the cylinder through the positioning device, and then perform internal correction, this process not only requires the cylinder to be moved back and forth, but also the position of the cylinder after the second positioning will deviate from the position of the cylinder after the first positioning, thereby affecting the accuracy of the internal and external corrections.

[0064] For this purpose, see Figure 1 and Figure 4A transfer assembly 4 is installed at one end of the top of the base 1, and two groups of straightening assemblies 3 are slidably connected between the clamping assembly 2 and the transfer assembly 4, respectively. The positioning assembly 5 is slidably connected to the top of the transfer assembly 4, and the top of the transfer assembly 4 is slidably connected with an adjustment assembly 6. The end of the adjustment assembly 6 close to the straightening assembly 3 is installed with a correction assembly 7. The transfer assembly 4 is used to drive the positioning assembly 5 and the adjustment assembly 6 to move, and then shift the positions of the positioning assembly 5 and the adjustment assembly 6. That is, when the cylinder needs to be positioned, the transfer assembly 4 moves the positioning assembly 5 to a position relative to the cylinder. When the cylinder needs to be corrected internally, the transfer assembly 4 removes the positioning assembly 5 and moves the adjustment assembly 6 to a position relative to the cylinder. The adjustment assembly 6 and the correction assembly 7 are used to cooperate to correct the inside of the cylinder. The specific structure of the transfer assembly 4 is as follows:

[0065] In this embodiment, refer to Figure 4 The transfer assembly 4 includes a support plate 41 mounted on the top of the rack 11 and two sets of transmission wheels 43 rotatably connected to the top of the support plate 41. The two sets of transmission wheels 43 are connected to transmission belts 44. The transmission belts 44 are connected to two connecting platforms 47. The two connecting platforms 47 are slidably connected to the top of the support plate 41. The adjustment assembly 6 is mounted on the top of one of the connecting platforms 47, and the positioning assembly 5 is mounted on the top of the other connecting platform 47. A transfer motor 45 is installed on one side of the support plate 41. A second transmission mechanism 46 is connected between the output end of the transfer motor 45 and one of the transmission wheels 43. The second transmission mechanism 46 is composed of a transmission belt, a driving wheel and a driven wheel. The output end of the transfer motor 45 is connected to the driving wheel, and the driving wheel 43 is connected to the driven wheel through a rotating shaft. When the transfer motor 45 is started, the transfer motor 45 drives the driving wheel to rotate, and the driving wheel transmits the driving force to the transmission belt. The transmission belt simultaneously drives the driven wheel, the rotating shaft and the transmission wheel 43 to rotate, causing the transmission belt 44 on the two sets of transmission wheels 43 to be driven, and the transmission belt 44 drives the two connecting platforms 47 to move synchronously, and the connecting platforms 47 respectively drive the adjustment component 6 and the positioning component 5 to move, thereby changing the positions of the adjustment component 6 and the positioning component 5.

[0066] See also Figure 4 , the specific structure of the adjustment component 6 is as follows:

[0067] The adjustment component 6 includes an adjustment column 61 slidably connected to the top of the transfer component 4 and an adjustment arm 64 horizontally slidably connected to the top of the adjustment column 61. The correction component 7 is installed at the end of the adjustment arm 64 close to the straightening component 3. An adjustment frame 62 is installed on one side of the adjustment column 61. An adjustment cylinder 63 is installed on the top of the adjustment frame 62. The output end of the adjustment cylinder 63 is connected to the end of the adjustment arm 64 away from the correction component 7. When the adjustment component 6 moves to the position corresponding to the cylinder barrel, the piston rod of the adjustment cylinder 63 is contracted to cause the adjustment arm 64 to slide on the top of the adjustment column 61, and the adjustment arm 64 extends into the interior of the cylinder barrel to complete the positioning. When the adjustment component 6 extends into the interior of the cylinder barrel, the correction component 7 also extends into the cylinder barrel, and the correction component 7 shapes the inner wall of the cylinder barrel.

[0068] See also Figure 5-Figure 10 , the specific structure of the correction component 7 is as follows:

[0069] The correction assembly 7 includes a first plate 71 installed at the end of the adjustment arm 64 and a connecting rod 72 connected to the first plate 71 away from the adjustment arm 64. The end of the connecting rod 72 away from the first plate 71 is connected to the third plate 74. A second plate 73 is arranged between the first plate 71 and the third plate 74. The connecting rod 72 passes through the second plate 73. The first plate 71, the connecting rod 72, the second plate 73 and the third plate 74 cooperate to form a bearing frame of the correction assembly 7. A correction cylinder 792 is installed on the side of the second plate 73 close to the first plate 71. The correction cylinder The piston rod of 792 passes through the second plate body 73 and is fitted with a stretching hinge block 794. An stretching spring 793 is connected between the stretching hinge block 794 and the second plate body 73. A center hole is provided at the center of the stretching hinge block 794. A stretching chuck 796 is installed on the side of the stretching hinge block 794 away from the stretching spring 793. The center hole of the stretching chuck 796 is provided corresponding to the center hole at the center of the stretching hinge block 794. The stretching chuck 796 is used to position the piston rod of the correction cylinder 792, that is, when the stretching chuck 796 contracts, the piston rod of the correction cylinder 792 is clamped.

[0070] The top and bottom of the expansion hinge block 794 are hinged with expansion auxiliary rods 795, and the outer side wall of the second plate body 73 is symmetrically connected to two expansion auxiliary blocks 79. One side of the two expansion auxiliary blocks 79 is hinged with an expansion rod 791, and the end of the expansion rod 791 away from the expansion auxiliary block 79 is hinged with an expansion connection block 781. The two expansion connection blocks 781 are repelled on one side and connected with an arc plate 78. The two expansion auxiliary rods 795 are arranged corresponding to the two expansion rods 791, and the end of the expansion auxiliary rod 795 away from the expansion hinge block 794 is hinged with the middle part of the corresponding expansion rod 791. When the piston rod of the correction cylinder 792 is After the expansion chuck 796 is clamped, the correction cylinder 792 is used to drive the expansion hinge block 794 to move. The expansion hinge block 794 pushes one end of the expansion auxiliary rod 795 to move, and the other end also pushes the expansion rod 791 to swing. The expansion rod 791 and the expansion connecting block 781 swing at the same time and drive the corresponding arc plate 78 to fit the inner wall of the cylinder. The cylinder is shaped by expanding the two arc plates 78. In this state, the cylinder can also be positioned by the adjustment component 6 and the correction component 7, and the straightening component 3 can perform external correction operations at the same time, thereby avoiding the situation where the cylinder is moved back and forth and multiple positioning affects the correction accuracy.

[0071] In the third embodiment, if the cylinder barrel is pulled during use, scratches will appear inside the cylinder barrel, and scratches will also be caused inside the cylinder barrel during the correction process. If not handled in time, oil leakage and poor sealing will occur during subsequent use.

[0072] To this end, two correction auxiliary blocks 75 are symmetrically installed on the outer side wall of the third plate body 74, and one side of the two correction auxiliary blocks 75 is hinged with a correction rod 76, and the end of the correction rod 76 away from the correction auxiliary block 75 is hinged with a correction block 77, and the two correction blocks 77 have an inclined portion 797 on the side that repels each other. A guide rod 798 is connected to the side of the third plate body 74 away from the connecting rod 72, and a stopper 799 is slidably connected to the outer side wall of the guide rod 798, and a correction spring 7901 is connected between the stopper 799 and the third plate body 74. Two correction auxiliary rods 7902 are symmetrically hinged on both sides of the stopper 799, and the two correction auxiliary rods 7902 are arranged corresponding to the two correction rods 76. The end of the correction auxiliary rod 7902 away from the stopper 799 is hinged to the middle part of the corresponding correction rod 76. When the internal scratches of the cylinder need to be cleared, there is no need to remove the adjustment component 6 and the correction component 7 from The cylinder is taken out by controlling the expansion chuck 796 to open. At this time, the expansion spring 793 pulls the expansion hinge block 794 to move toward the second plate body 73, so that the arc plate 78 is separated from the inner wall of the cylinder. In this state, the expansion of the cylinder by the arc plate 78 is cancelled, and the piston rod of the correction cylinder 792 passes through the expansion hinge block 794 and the expansion chuck 796 and fits with the stopper 799. The stopper 799 is used to correct the cylinder 792. 2, and as the piston rod of the correction cylinder 792 continues to extend, the stopper 799 pulls the correction spring 7901, and the stopper 799 drives one end of the correction auxiliary rod 7902 to move, and the correction auxiliary rod 7902 pushes the correction rod 76 and the correction block 77 to expand, causing the inclined portion 797 on the correction block 77 to fit against the inner wall of the cylinder barrel, and the cylinder barrel rotates, causing the correction block 77 to scratch and remove the inner wall of the cylinder barrel.

[0073] Since the shape of some cylinder barrels is open at one end, a processing surface will be formed at the inner wall position of the closed end. This processing surface needs to be separately provided with a scraper mechanism, and the setting of the scraper mechanism will occupy space, that is, it will cause incomplete cleaning of the side wall scratches. For this reason, a positioning mechanism 8 is provided at the hinge of the correction rod 76 and the correction block 77. The positioning mechanism 8 includes a locking cylinder 81, which is installed on the correction block 77, and the piston rod of the locking cylinder 81 passes through the correction rod 76 and is connected to the limit plate, and a positioning spring 82 is provided between the limit plate and the correction rod 76;

[0074] See also Fig. 9 The inclined portion 797 is divided into a left inclined portion 797, a middle inclined portion 797 and a right inclined portion 797. A guiding slope is set between the middle inclined portion 797 and the right inclined portion 797. When the correction block 77 contacts the inner wall of the cylinder, the middle inclined portion 797 of the correction block 77 contacts the inner wall of the cylinder, and then the cylinder rotates to achieve the purpose of removing scratches on the inner wall of the cylinder. However, due to the existence of the guiding slope, a dead angle exists between the inner wall of the cylinder and the inner wall of the end.

[0075] When the correction assembly 7 moves as a whole toward the inside of the cylinder, the positioning mechanism 8 at the hinge point of the correction rod 76 and the correction block 77 is released, that is, the piston rod of the locking cylinder 81 is extended, and the positioning spring 82 gradually changes from an extruded state to an extended state. The extrusion force of the positioning spring 82 on the correction rod 76 is reduced, and the correction block 77 can swing relative to the correction rod 76, but it swings slowly due to the elastic force of the positioning spring 82. When the end of the correction block 77, that is, the inclined portion 797 on the right side, contacts the inner wall of the cylinder end, the correction block 77 gradually tilts through this guiding slope until the middle inclined portion 797 on the correction block 77 contacts the inner wall of the cylinder end, and the inclined portion 797 on the left side contacts the dead angle position of the inner wall of the cylinder. When the cylinder rotates, the inclined portion 797 on the left side removes scratches on the dead angle position of the inner wall of the cylinder, and the middle inclined portion 797 removes scratches on the inner wall of the cylinder end.

[0076] The correction spring 7901 is used to adaptively adjust the position of the stopper 799 to avoid the situation where the correction block 77 cannot rotate during the swinging process. The correction block 77 adjusts its own angle and position according to the scratch removal at different positions. There is no need to design and install a scraper mechanism separately, which greatly reduces the cost. The correction block 77 adjusts the angle after the processing surface is completely processed, which avoids the situation where the scratch removal is not thorough.

[0077] Embodiment 4, a method for correcting the cylinder barrel of a hydraulic oil cylinder, according to the above-mentioned correction mechanism for the cylinder barrel of a hydraulic oil cylinder, comprises the following steps:

[0078] S1. The staff uses a robot to clamp the cylinder that needs to be adjusted and transfers it to the top of the rack 11, and then uses the clamping assembly 2 to clamp one end of the cylinder to position it, waiting for the correction operation.

[0079] The more specific steps of S1 are:

[0080] S11. The staff uses a robot to clamp the cylinder that needs to be adjusted and transfers it to the top of the rack 11, then uses the three-jaw chuck 23 to clamp one end of the cylinder, and uses the drive motor 22 to drive the three-jaw chuck 23 and the cylinder to rotate, thereby adjusting the angle of the cylinder.

[0081] S2. Then, the clamping assembly 2 drives the cylinder barrel toward the direction of the positioning assembly 5. The clamping assembly 2 and the positioning assembly 5 cooperate to clamp and position the cylinder barrel. The two groups of straightening assemblies 3 cooperate to squeeze and straighten the outer wall of the cylinder barrel.

[0082] The more specific steps of S2 are:

[0083] S21, the bearing seat 21 moves on the top of the rack 11, and at the same time the three-jaw chuck 23 moves the clamped cylinder toward the direction of the tapered block 53. At this time, the conical surface of the tapered block 53 first fits with the opening of the cylinder. As the cylinder gradually moves toward the direction of the tapered block 53, the tapered block 53 gradually slides into the inside of the cylinder, thereby performing preliminary auxiliary clamping and positioning of the cylinder.

[0084] S22. Subsequently, the first transmission mechanism 37 on the two groups of straightening components 3 is started, and the first transmission mechanism 37 cooperates with the rack on the rack 11 to provide driving force for the movement of the moving seat 31. The moving seats 31 of the two groups of straightening components 3 slide horizontally on the top of the rack 11, and the moving seat 31 drives the supporting platform 32, the fixed frame 33 and the wedge-shaped pressure block 34 to move synchronously, thereby adjusting the position of the wedge-shaped pressure block 34. At the same time, the lifting cylinder 39 drives the slide 391 and the auxiliary frame 392 to move upward, so that the auxiliary frame 392 supports the cylinder barrel.

[0085] S23. After the cylinder is supported, the driving motor 22 drives the three-jaw chuck 23 and the cylinder to rotate, and the two sets of straightening components 3 continue to move along the horizontal extension direction of the rack 11, so that the auxiliary frame 392 is displaced on the side wall of the cylinder. If it cannot move, it means that the shape of the cylinder is deformed at this position, the cylinder stops rotating, and the auxiliary frame 392 is used to move up and down to extrude and correct the cylinder.

[0086] S24. After the auxiliary frame 392 corrects the cylinder, the driving cylinder 36 is used to drive the fixed frame 33 and the wedge-shaped pressure block 34 to move, so that the wedge-shaped pressure block 34 fits against the outer wall of the cylinder. In this state, the cylinder rotates, so that the wedge-shaped pressure block 34 scrapes and adjusts the outer wall of the cylinder to ensure the flatness of the outer wall of the cylinder and avoid scratches and impurities caused by the extrusion of the auxiliary frame 392.

[0087] S3. After the outer wall of the cylinder is adjusted, the cylinder is separated from the positioning assembly 5, and the transfer assembly 4 is used to drive the positioning assembly 5 and the adjustment assembly 6 to move, so that the adjustment assembly 6 moves to the position corresponding to the cylinder, and the adjustment assembly 6 extends to the inside of the cylinder to position the cylinder.

[0088] The more specific steps of S3 are:

[0089] S31. After the adjustment of the cylinder is completed, the clamping assembly 2 is used to drive the cylinder to separate from the conical block 53. Then the transfer motor 45 drives the second transmission mechanism 46 to operate. The second transmission mechanism 46 drives two sets of transmission wheels 43 and the transmission belt 44 to transmit. The transmission belt 44 drives the two connecting platforms 47 to slide on the top of the support plate 41, so that the positioning assembly 5 is separated from the cylinder, and the adjustment assembly 6 moves to the position corresponding to the cylinder.

[0090] S32, the piston rod of the adjustment cylinder 63 is then contracted, causing the adjustment arm 64 to slide on the top of the adjustment column 61, and the adjustment arm 64 extends into the cylinder to complete the positioning.

[0091] S4. While the adjustment component 6 is extended into the cylinder, the correction component 7 is also extended into the cylinder. The correction component 7 shapes the inner wall of the cylinder. The correction component 7 is in a retracted state. First, the clamping plate 796 is stretched open to clamp the piston rod of the correction cylinder 792. Then, the correction cylinder 792 is used to drive the stretching hinge block 794 to move. The stretching hinge block 794 pushes one end of the stretching auxiliary rod 795 to move, and the other end also pushes the stretching rod 791 to swing. The stretching rod 791 and the stretching connecting block 781 swing at the same time and drive the corresponding arc plate 78 to fit the inner wall of the cylinder. The cylinder is shaped by the expansion of the two arc plates 78.

[0092] S5. When the inside of the cylinder needs to be cleaned of scratches for correction, the correction component 7 is adjusted to the cleaning state, and the scratches inside the cylinder can be cleaned.

[0093] The more specific steps of S5 are:

[0094] S51, by opening the opening chuck 796, the opening spring 793 pulls the opening hinge block 794 to move towards the second plate body 73. In this state, the expansion of the cylinder by the arc plate 78 is cancelled, and the piston rod of the correction cylinder 792 passes through the opening hinge block 794 and the opening chuck 796 and fits with the block 799. The block 799 clamps the piston rod of the correction cylinder 792, and as the piston rod of the correction cylinder 792 continues to extend, the block 799 pulls the correction spring 7901, and the block 799 drives one end of the correction auxiliary rod 7902 to move, and the correction auxiliary rod 7902 pushes the correction rod 76 and the correction block 77 to expand, causing the inclined portion 797 on the correction block 77 to fit against the inner wall of the cylinder, and the cylinder rotates, causing the correction block 77 to scratch and remove the inner wall of the cylinder.

[0095] S52. When the correction assembly 7 moves as a whole toward the inside of the cylinder, the positioning mechanism 8 at the hinge point of the correction rod 76 and the correction block 77 is released, that is, the piston rod of the locking cylinder 81 is extended, and the positioning spring 82 gradually changes from an extruded state to an extended state. The extrusion force of the positioning spring 82 on the correction rod 76 is reduced, and the correction block 77 can swing relative to the correction rod 76, but it swings slowly due to the elastic force of the positioning spring 82. When the end of the correction block 77 contacts the inner wall of the cylinder, the correction block 77 is squeezed and swung by the inner wall of the cylinder, so that the inclined portion 797 on the correction block 77 contacts the inner wall of the cylinder end, and then the cylinder rotates to achieve the purpose of removing scratches on the inner wall of the cylinder end, and the correction spring 7901 is used to adaptively adjust the position of the stopper 799 to avoid the situation where the correction block 77 cannot rotate during the swinging process.

[0096] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

Claims

1. A hydraulic cylinder barrel correction mechanism, characterized in that: The invention comprises a base (1), the bottom of the base (1) is equipped with a rack (11), the top of the base (1) is slidably connected with a clamping assembly (2) and two groups of straightening assemblies (3), one end of the top of the rack (11) is equipped with a transfer assembly (4), the two groups of straightening assemblies (3) are respectively slidably connected between the clamping assembly (2) and the transfer assembly (4), the top of the transfer assembly (4) is slidably connected with a positioning assembly (5) and an adjustment assembly (6), and the end of the adjustment assembly (6) close to the straightening assembly (3) is equipped with a correction assembly (7); The adjustment component (6) comprises an adjustment column (61) slidably connected to the top of the transfer component (4) and an adjustment arm (64) horizontally slidably connected to the top of the adjustment column (61); the correction component (7) is mounted on an end of the adjustment arm (64) close to the straightening component (3); an adjustment frame (62) is mounted on one side of the adjustment column (61); an adjustment cylinder (63) is mounted on the top of the adjustment frame (62); an output end of the adjustment cylinder (63) is connected to an end of the adjustment arm (64) away from the correction component (7); The correction assembly (7) comprises a first plate (71) mounted on the end of the adjustment arm (64) and a connecting rod (72) connected to the first plate (71) at a side away from the adjustment arm (64); the end of the connecting rod (72) away from the first plate (71) is connected to a third plate (74); a second plate (73) is arranged between the first plate (71) and the third plate (74); the connecting rod (72) passes through the second plate (73); a correction gas is installed on a side of the second plate (73) close to the first plate (71). Cylinder (792), the piston rod of the correction cylinder (792) passes through the second plate body (73) and is fitted with a stretching hinge block (794), an expansion spring (793) is connected between the expansion hinge block (794) and the second plate body (73), a center hole is provided at the center of the expansion hinge block (794), an expansion chuck (796) is installed on the side of the expansion hinge block (794) away from the expansion spring (793), and the center hole of the expansion chuck (796) is arranged corresponding to the center hole at the center of the expansion hinge block (794); The top and bottom of the expansion hinge block (794) are both hingedly connected with expansion auxiliary rods (795); the outer side wall of the second plate body (73) is symmetrically connected with two expansion auxiliary blocks (79); one side of the two expansion auxiliary blocks (79) is hingedly connected with an expansion rod (791); one end of the expansion rod (791) away from the expansion auxiliary block (79) is hingedly connected with an expansion connection block (781); the two sides of the two expansion connection blocks (781) that repel each other are both connected with an arc plate (78); the two expansion auxiliary rods (795) are arranged corresponding to the two expansion rods (791); one end of the expansion auxiliary rod (795) away from the expansion hinge block (794) is hingedly connected to the middle part of the corresponding expansion rod (791); Two correction auxiliary blocks (75) are symmetrically mounted on the outer side wall of the third plate body (74), one side of each of the two correction auxiliary blocks (75) is hingedly connected to a correction rod (76), one end of the correction rod (76) away from the correction auxiliary block (75) is hingedly connected to a correction block (77), and an inclined portion (797) is provided on one side of the two correction blocks (77) that repel each other, and a guide rod (798) is connected to the one side of the third plate body (74) away from the connecting rod (72). A stopper (799) is slidably connected to the outer wall of the rod (798); a correction spring (7901) is connected between the stopper (799) and the third plate (74); two correction auxiliary rods (7902) are symmetrically hinged on both sides of the stopper (799); the two correction auxiliary rods (7902) are arranged corresponding to the two correction rods (76); and one end of the correction auxiliary rod (7902) away from the stopper (799) is hinged to the middle part of the corresponding correction rod (76); A positioning mechanism (8) is provided at the hinge of the correction rod (76) and the correction block (77), the positioning mechanism (8) comprising a locking cylinder (81), the locking cylinder (81) being mounted on the correction block (77), and a piston rod of the locking cylinder (81) passing through the correction rod (76) and connected to a limit plate, a positioning spring (82) being provided between the limit plate and the correction rod (76); The transfer assembly (4) comprises two connecting platforms (47), the adjustment assembly (6) is mounted on the top of one of the connecting platforms (47), and the positioning assembly (5) is mounted on the top of the other connecting platform (47); The positioning assembly (5) comprises a positioning seat (51) mounted on the top of the corresponding connecting platform (47) and a positioning cylinder (52) mounted on a side of the positioning seat (51) away from the straightening assembly (3); a piston rod of the positioning cylinder (52) passes through the positioning seat (51) and is connected to a conical block (53).

2. The hydraulic cylinder barrel correction mechanism according to claim 1, characterized in that: The clamping assembly (2) comprises a bearing seat (21) slidably connected to the top of the rack (11) and a driving motor (22) arranged on a side of the bearing seat (21) away from the straightening assembly (3), wherein the output end of the driving motor (22) passes through the bearing seat (21) and is connected to a three-jaw chuck (23).

3. The hydraulic cylinder barrel correction mechanism according to claim 2 is characterized in that: The two groups of straightening assemblies (3) each comprise a movable seat (31) slidably connected to the top of the rack (11) and a support platform (32) mounted on the top of the movable seat (31); a fixed plate (35) is mounted on the side of the support platform (32) away from the rack (11); a driving cylinder (36) is mounted horizontally on the side of the fixed plate (35) away from the support platform (32); a piston rod of the driving cylinder (36) passes through the fixed plate (35) and is connected to a fixed frame (33); a wedge-shaped pressure block (34) is mounted on the top of the fixed frame (33); a first transmission mechanism (37) is mounted on the bottom of the movable seat (31); the first transmission mechanism (37) is meshedly connected to the rack (11).

4. The hydraulic cylinder barrel correction mechanism according to claim 3 is characterized in that: A slide table (391) is vertically slidably connected to one side of the support table (32); an auxiliary frame (392) is hingedly mounted on one side of the slide table (391) close to the rack (11); and a V-shaped groove is provided on the top of the auxiliary frame (392).

5. The hydraulic cylinder barrel correction mechanism according to claim 4 is characterized in that: A mounting seat (38) is installed on one side of the support platform (32), and a lifting cylinder (39) is vertically installed at the bottom of the mounting seat (38). The piston rod of the lifting cylinder (39) passes through the bottom of the mounting seat (38) and is connected to the slide table (391).

6. The hydraulic cylinder barrel correction mechanism according to claim 1, characterized in that: The transfer assembly (4) further comprises a support plate (41) mounted on the top of the rack (11) and two groups of transmission wheels (43) rotatably connected to the top of the support plate (41); the two groups of transmission wheels (43) are transmission-connected to a transmission belt (44); two connecting platforms (47) are both connected to the transmission belt (44); the two connecting platforms (47) are slidably connected to the top of the support plate (41); a transfer motor (45) is mounted on one side of the support plate (41); and a second transmission mechanism (46) is transmission-connected between an output end of the transfer motor (45) and one of the groups of transmission wheels (43).

7. A method for correcting the cylinder barrel of a hydraulic oil cylinder, according to the correction mechanism for the cylinder barrel of a hydraulic oil cylinder according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1. The staff uses a manipulator to clamp the cylinder to be adjusted and transfers it to the top of the rack (11), and then uses the clamping assembly (2) to clamp one end of the cylinder in place, waiting for the correction operation; S2, the clamping assembly (2) then drives the cylinder barrel towards the direction of the positioning assembly (5), the clamping assembly (2) and the positioning assembly (5) cooperate to clamp and position the cylinder barrel, and the two sets of straightening assemblies (3) cooperate to squeeze and straighten the outer wall of the cylinder barrel; S3, after the outer wall of the cylinder is adjusted, the cylinder is separated from the positioning assembly (5), and the transfer assembly (4) is used to drive the positioning assembly (5) and the adjustment assembly (6) to move, so that the adjustment assembly (6) moves to a position corresponding to the cylinder, and the adjustment assembly (6) extends into the interior of the cylinder to position the cylinder; S4, while the adjustment component (6) extends into the cylinder, the correction component (7) also extends into the cylinder, and the correction component (7) reshapes the inner wall of the cylinder. The correction component (7) is in a contracted state, and first the clamping plate (796) is stretched to clamp the piston rod of the correction cylinder (792), and then the correction cylinder (792) is used to drive the stretching hinge block (794) to move, and the stretching hinge block (794) pushes one end of the stretching auxiliary rod (795) to move, and the other end also pushes the stretching rod (791) to swing, and the stretching rod (791) and the stretching connection block (781) swing at the same time and drive the corresponding arc plate (78) to fit the inner wall of the cylinder, and the cylinder is reshaped by the expansion of the two arc plates (78); S5. When the inside of the cylinder needs to be cleaned of scratches for correction, the correction component (7) is adjusted to a cleaning state, and the scratches on the inside of the cylinder can be cleaned.

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