Inner hole polishing machine for hydraulic cylinder machining

Abstract

The invention discloses an inner hole polishing machine for hydraulic cylinder machining, and belongs to the technical field of polishing, the inner hole polishing machine comprises a support and a polishing mechanism, and the polishing mechanism comprises a first driving piece, a driving rod, a polishing rod, a connecting assembly, an adjusting assembly, a moving frame, a clamping assembly, a lifting assembly and a supporting assembly; the supporting assembly can preliminarily support the hydraulic cylinder and drive the hydraulic cylinder to ascend and descend, so that the polishing rod can stretch into the inner side of the hydraulic cylinder, the hydraulic cylinder can be clamped and fixed through the clamping assembly, the adjusting assembly can be driven to work in the clamping process, and the polishing rod is further in full contact with the inner wall of the hydraulic cylinder. And the driving rod can be controlled to rotate through the first driving part, the polishing rod can polish the inner hole of the hydraulic cylinder, the clamping assembly can drive the hydraulic cylinder to move in the vertical direction through the lifting operation, the polishing rod can fully polish the inner hole of the hydraulic cylinder, and the polishing effect is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of polishing, and in particular relates to an inner hole polishing machine for processing a hydraulic cylinder. Background Art

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has a simple structure and reliable operation. When it is used to achieve reciprocating motion, the reduction device can be eliminated, and there is no transmission gap and the movement is smooth. Therefore, it is widely used in the hydraulic systems of various machines. The cylinder barrel of the hydraulic cylinder is a housing barrel that provides the piston rod with reciprocating motion. The smoothness of the piston rod's movement partly depends on the smoothness of the inner wall of the hydraulic cylinder barrel. Therefore, during the production or maintenance of the hydraulic cylinder barrel, the inner wall of the hydraulic cylinder barrel needs to be polished to ensure the smooth movement of the piston rod.

[0003] The existing inner hole polishing machine for hydraulic cylinder processing is not convenient to adjust the position of the polishing rod according to the diameter of the inner hole of the hydraulic cylinder during use, and it is not convenient to achieve a comprehensive polishing operation on the inside of the hydraulic cylinder during the polishing process, which easily causes incomplete polishing of the inner hole of the hydraulic cylinder and affects the polishing effect.

[0004] In order to avoid the above technical problems, it is necessary to provide an inner hole polishing machine for hydraulic cylinder processing to overcome the above defects in the prior art. Summary of the invention

[0005] The object of the present invention is to provide an inner hole polishing machine for hydraulic cylinder machining to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An inner hole polishing machine for hydraulic cylinder machining comprises a bracket and a polishing mechanism, wherein the polishing mechanism comprises:

[0008] A motor frame is fixedly mounted on the top of the bracket, a first driving member is fixedly mounted on the inner side of the motor frame, a driving rod is fixedly mounted on the output end of the first driving member, a fixing frame is fixedly mounted on the bottom end of the driving rod, polishing rods are arranged on both sides of the fixing frame, a connecting assembly is installed between the polishing rod and the fixing frame, and is used to support the polishing rod and enable the polishing rod to change position relative to the fixing frame, an adjusting assembly is installed between the driving rod and the bracket, and the adjusting assembly is connected to the connecting assembly, and is used to drive the connecting assembly to work, so that the distance between the polishing rod and the fixing frame changes;

[0009] A moving frame is provided on the inner side of the bracket, and a clamping assembly is installed on the moving frame for supporting the hydraulic cylinder and driving the adjusting assembly to work during the clamping process so that the polishing rod is close to the inner wall of the hydraulic cylinder. A lifting assembly is installed between the moving frame and the bracket for driving the moving frame to drive the clamping assembly to move in the vertical direction. A supporting assembly is also installed on the inner side of the bracket for performing preliminary supporting operations on the hydraulic cylinder.

[0010] As a further technical solution of the present invention: the connection assembly comprises:

[0011] The first rotating rod is installed on the fixed frame, and both ends of the first rotating rod are rotatably connected to the fixed frame. Connecting rods are fixedly installed on the outer sides of both ends of the rotating rod, and a second rotating rod is fixedly installed on the end of the connecting rod away from the first rotating rod. A connecting frame is installed on the second rotating rod, and the second rotating rod is rotatably connected to the connecting frame. There are two of the first rotating rod, the second rotating rod and the connecting frame, and they are divided into two groups and installed in parallel on the fixed frame. There are four connecting rods and they are divided into two groups and installed in parallel on the two first rotating rods. The two connecting frames are fixedly connected to the polishing rods. There are two of the connecting assembly and the polishing rod, and they are divided into two groups and symmetrically installed on the fixed frame.

[0012] As a further technical solution of the present invention: the adjustment component comprises:

[0013] A limit groove is located in the middle of the driving rod, a movable plate is provided on the inner side of the limit groove, racks are installed on both sides of the bottom end of the movable plate, a rotating tooth is fixedly installed in the middle of the first rotating rod, the rotating tooth is meshed with the rack, a limit frame is fixedly installed on the top of the movable plate, the limit frame is sleeved on the outside of the driving rod, a rotating ring is installed on the outside of the limit frame, the rotating ring is rotatably connected to the limit frame, and a fixed plate is fixedly installed on the outside of the rotating ring;

[0014] A slide groove is provided at the top of the bracket, and a slider is provided on the inner side of the slide groove. The slider is slidably connected to the slide groove, a first hinge seat is fixedly installed on the bottom side of the slider, and a second hinge seat is fixedly installed on the fixed plate. A long rod is installed between the first hinge seat and the second hinge seat, and both ends of the long rod are rotatably connected to the first hinge seat and the second hinge seat. A first elastic member is fixedly installed on the side of the slider close to the driving rod, and the first elastic member is located on the inner side of the slide groove.

[0015] As a further technical solution of the present invention: the clamping assembly comprises:

[0016] The cam is provided with a second elastic member sleeved on the outer side of the limit rod, and the second elastic member is located between the support block and the clamping plate, and an adjusting plate is fixedly installed on the top of the support block, and the adjusting plate is vertical and passes through the slide groove.

[0017] As a further technical solution of the present invention: the lifting assembly comprises:

[0018] The first telescopic member is fixedly installed at the bottom inner end of the bracket, the output end of the first telescopic member is fixedly connected to the bottom side of the moving frame, a positioning rod is fixedly installed at the top of the moving frame, a positioning hole is provided at the top of the bracket, the positioning rod passes through the positioning hole, and the positioning rod is vertical.

[0019] As a further technical solution of the present invention: the support assembly comprises:

[0020] The support plate is located on the inner side of the bracket and is horizontal. A second telescopic member is fixedly installed on the bottom end of the inner side of the bracket. The output end of the second telescopic member is fixedly connected to the middle part of the bottom end of the support plate. A vertical support rod is fixedly installed at the corner of the support plate. A support tube is sleeved on the outer side of the bottom end of the support rod. The support tube is fixedly installed on the bracket. Both the support rod and the support tube are vertical.

[0021] As a further technical solution of the present invention: the polishing rod is parallel to the driving rod and both are vertical, the polishing rod is semicircular in shape, and the driving rod passes through the top of the bracket and is rotatably connected to the bracket.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention provides an inner hole polishing machine for hydraulic cylinder processing, wherein the supporting assembly can provide preliminary support to the hydraulic cylinder and drive the hydraulic cylinder to perform lifting operations, so that the polishing rod can be extended into the inner side of the hydraulic cylinder; the hydraulic cylinder can be clamped and fixed by the clamping assembly, and the adjusting assembly can be driven to work during the clamping process, thereby further achieving full contact between the polishing rod and the inner wall of the hydraulic cylinder, facilitating the polishing operation; the driving rod can be controlled to rotate by the first driving member, thereby achieving the polishing operation of the polishing rod on the inner hole of the hydraulic cylinder; the lifting operation can realize that the clamping assembly drives the hydraulic cylinder to move in the vertical direction, thereby achieving the full polishing operation of the polishing rod on the inner hole of the hydraulic cylinder, thereby improving the polishing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention.

[0025] Figure 2 It is a schematic diagram of the structure of the inner side of the bracket in the present invention.

[0026] Figure 3 It is a schematic diagram of the structure of the clamping assembly in the present invention.

[0027] Figure 4 It is a schematic diagram of the structure between the adjustment component and the driving rod in the present invention.

[0028] Figure 5 For the present invention Figure 4 Schematic diagram of the structure enlarged at point A in the middle.

[0029] Figure 6 It is a schematic diagram of the structure between the lifting assembly and the clamping assembly in the present invention.

[0030] Figure 7 It is a schematic diagram of the structure between the moving frame and the bracket in the present invention.

[0031] Figure 8 It is a schematic diagram of the structure between the driving rod and the polishing rod in the present invention.

[0032] Fig. 9 It is a schematic diagram of the structure between the connecting component and the regulating component in the present invention.

[0033] In the accompanying drawings: 1- bracket, 2- motor frame, 3- first driving member, 4- driving rod, 5- connecting assembly, 51- first rotating rod, 52- connecting rod, 53- second rotating rod, 54- connecting frame, 6- adjusting assembly, 61- limiting groove, 62- moving plate, 63- rack, 64- rotating gear, 65- limiting frame, 66- rotating ring, 67- fixing plate, 68- sliding groove, 69- sliding block, 60- first hinge seat, 601- second hinge seat, 602- long rod, 603- first elastic Parts, 7-clamping assembly, 71-second driving member, 72-rotating rod, 73-moving block, 74-support block, 75-limiting hole, 76-limiting rod, 77-clamping plate, 78-second elastic member, 79-baffle, 70-adjusting plate, 8-lifting assembly, 81-first telescopic member, 82-positioning hole, 83-positioning rod, 9-support assembly, 91-support plate, 92-support rod, 93-support cylinder, 94-second telescopic member, 10-fixed frame, 11-polishing rod, 12-moving frame. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0035] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0036] like Figures 1 to 9 As shown in the embodiment provided by the present invention, an inner hole polishing machine for hydraulic cylinder processing includes a bracket 1 and a polishing mechanism, and the polishing mechanism includes:

[0037] The motor frame 2 is fixedly mounted on the top of the bracket 1, a first driving member 3 is fixedly mounted on the inner side of the motor frame 2, a driving rod 4 is fixedly mounted on the output end of the first driving member 3, a fixing frame 10 is fixedly mounted on the bottom end of the driving rod 4, polishing rods 11 are arranged on both sides of the fixing frame 10, a connecting component 5 is installed between the polishing rod 11 and the fixing frame 10, and is used to support the polishing rod 11 and enable the polishing rod 11 to change its position relative to the fixing frame 10, an adjusting component 6 is installed between the driving rod 4 and the bracket 1, and the adjusting component 6 is connected to the connecting component 5, and is used to drive the connecting component 5 to work, so that the distance between the polishing rod 11 and the fixing frame 10 changes;

[0038] A moving frame 12 is provided on the inner side of the bracket 1, and a clamping assembly 7 is installed on the moving frame 12 for supporting the hydraulic cylinder and driving the adjusting assembly 6 to work during the clamping process so that the polishing rod 11 is close to the inner wall of the hydraulic cylinder. A lifting assembly 8 is installed between the moving frame 12 and the bracket 1 for driving the moving frame 12 to drive the clamping assembly 7 to move in the vertical direction. A supporting assembly 9 is also installed on the inner side of the bracket 1 for performing preliminary supporting operations on the hydraulic cylinder.

[0039] In this embodiment, the support assembly 9 can provide preliminary support for the hydraulic cylinder and drive the hydraulic cylinder to perform lifting operations, so that the polishing rod 11 can extend into the inner side of the hydraulic cylinder. The hydraulic cylinder can be clamped and fixed by the clamping assembly 7, and the adjusting assembly 6 can be driven to work during the clamping process, so as to further achieve full contact between the polishing rod 11 and the inner wall of the hydraulic cylinder, which is convenient for polishing operations. The driving rod 4 can be controlled to rotate by the first driving member 3 to achieve polishing operations of the polishing rod 11 on the inner hole of the hydraulic cylinder. The lifting operation can realize that the clamping assembly 7 drives the hydraulic cylinder to move in the vertical direction, so that the polishing rod 11 can move the inner hole of the hydraulic cylinder. The hole is fully polished to improve the polishing effect; the polishing rod 11 is parallel to the driving rod 4 and both are vertical, the polishing rod 11 is semicircular, the driving rod 4 passes through the top of the bracket 1 and is rotatably connected to the bracket 1; the driving rod 4 is vertical, and a rolling bearing is installed between the driving rod 4 and the bracket 1, the first driving member 3 can be a rotary motor or a stepping motor, etc. In the present embodiment, the first driving member 3 is a rotary motor, and the first driving member 3 can realize the stable rotation of the driving rod 4 on the bracket 1, and further realize the rotation of the polishing rod 11, so that the polishing rod 11 can be convenient for the polishing operation on the inner hole of the hydraulic cylinder.

[0040] In one embodiment of the present invention, see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 8 and Fig. 9 , the connection component 5 comprises:

[0041] The first rotating rod 51 is installed on the fixed frame 10, and both ends of the first rotating rod 51 are rotatably connected to the fixed frame 10. Connecting rods 52 are fixedly installed on the outer sides of both ends of the rotating rod, and a second rotating rod 53 is fixedly installed on the end of the connecting rod 52 away from the first rotating rod 51. A connecting frame 54 is installed on the second rotating rod 53, and the second rotating rod 53 is rotatably connected to the connecting frame 54. There are two of the first rotating rod 51, the second rotating rod 53 and the connecting frame 54, which are divided into two groups and installed in parallel on the fixed frame 10. There are four connecting rods 52, which are divided into two groups and installed in parallel on the two first rotating rods 51. The two connecting frames 54 are fixedly connected to the polishing rod 11. There are two of the connecting assembly 5 and the polishing rod 11, which are divided into two groups and installed symmetrically on the fixed frame 10.

[0042] The adjustment component 6 comprises:

[0043] A limit groove 61 is located in the middle of the driving rod 4, a movable plate 62 is provided inside the limit groove 61, racks 63 are installed on both sides of the bottom of the movable plate 62, a rotating tooth 64 is fixedly installed in the middle of the first rotating rod 51, the rotating tooth 64 is meshed and connected with the rack 63, a limit frame 65 is fixedly installed on the top of the movable plate 62, the limit frame 65 is sleeved on the outside of the driving rod 4, a rotating ring 66 is installed on the outside of the limit frame 65, the rotating ring 66 is rotatably connected to the limit frame 65, and a fixed plate 67 is fixedly installed on the outside of the rotating ring 66;

[0044] A slide groove 68 is provided at the top of the bracket 1, and a slider 69 is provided on the inner side of the slide groove 68. The slider 69 is slidably connected to the slide groove 68. A first hinge seat 60 is fixedly installed on the bottom side of the slider 69. A second hinge seat 601 is fixedly installed on the fixed plate 67. A long rod 602 is installed between the first hinge seat 60 and the second hinge seat 601. Both ends of the long rod 602 are rotatably connected to the first hinge seat 60 and the second hinge seat 601. A first elastic member 603 is fixedly installed on the side of the slider 69 close to the driving rod 4, and the first elastic member 603 is located on the inner side of the slide groove 68.

[0045] In this embodiment, the first rotating rod 51 is installed on the fixing frame 10, and rolling bearings are installed between the two ends of the first rotating rod 51 and the fixing frame 10. The first rotating rod 51 can be stably rotated on the fixing frame 10. Connecting rods 52 are fixedly installed on the outer sides of both ends of the first rotating rod 51. The connecting rod 52 can rotate with the first rotating rod 51. A second rotating rod 53 is fixedly installed on one end of the connecting rod 52 away from the first rotating rod 51. The first rotating rod 51 is parallel to the second rotating rod 53 and is horizontal. A rolling bearing is installed between the second rotating rod 53 and the connecting frame 54. , the connecting frame 54 is fixedly connected to the polishing rod 11, the connecting rod 52 connects the first rotating rod 51 and the second rotating rod 53, the connecting rods 52 on the two first rotating rods 51 are parallel to each other, when the two first rotating rods 51 rotate at the same time, it is convenient to realize the rotation of the connecting rod 52, the distance between the polishing rod 11 and the fixed frame 10 changes, and it is convenient for the polishing rod 11 to approach the inner wall of the hydraulic cylinder. The fixed frame 10, the connecting rod 52 and the polishing rod 11 form a parallelogram. When the connecting rod 52 rotates, the polishing rod 11 is always in a vertical shape, which is convenient for contacting with the inner wall of the hydraulic cylinder and facilitating subsequent polishing operations;

[0046] A limiting groove 61 is provided at the bottom middle end of the driving rod 4, and a moving plate 62 is provided inside the limiting groove 61. The moving plate 62 is vertical, and the moving plate 62 can move in the vertical direction inside the limiting groove 61. A rotating tooth 64 is fixedly installed in the middle of the first rotating rod 51, and racks 63 are fixedly installed on both sides of the bottom end of the moving plate 62. The rack 63 is meshed and connected with the rotating tooth 64. When the rack 63 follows the moving plate 62 to move in the vertical direction, it is convenient to drive the rotating tooth 64 to drive the first rotating rod 51 to rotate, and further realize the connection. The connecting rod 52 is rotated to adjust the distance between the polishing rod 11 and the fixed frame 10. A limit frame 65 is fixedly installed on the top of the movable plate 62. The limit frame 65 is sleeved on the outside of the driving rod 4. The limit frame 65 can drive the movable plate 62 to move. A rotating ring 66 is installed on the outside of the limit frame 65. A rolling bearing is installed between the limit frame 65 and the rotating ring 66. The limit frame 65 and the movable plate 62 can rotate with the driving rod 4. A fixed plate 67 is fixedly installed on the outside of the rotating ring 66. The fixed plate 67 is horizontal.

[0047] A straight slide groove 68 is provided at the top of the bracket 1, and a slider 69 is provided inside the slide groove 68. The slider 69 is in an I-shape and is slidably connected to the slide groove 68. The slider 69 can move along the slide groove 68. A first hinge seat 60 is fixedly installed on the bottom side of the slider 69, and a second hinge seat 601 is fixedly installed on the fixed plate 67. A long rod 602 is installed between the first hinge seat 60 and the second hinge seat 601. Rolling bearings are installed between both ends of the long rod 602 and the first hinge seat 60 and the second hinge seat 601. When the slider 69 moves along the inside of the slide groove 68, the fixed plate 67 can drive the rotating ring 66, the limit frame 65 and the movable plate 62 to move by the first hinge seat 60, the second hinge seat 601 and the long rod 602. For vertical position movement, a first elastic member 603 is installed on the side of the slider 69 close to the driving rod 4. The first elastic member 603 is located on the inner side of the slide groove 68. The first elastic member 603 can be a spring or rubber, etc. In the present embodiment, the first elastic member 603 is a spring, which is convenient for limiting the position of the slider 69 on the inner side of the slide groove 68; the slide groove 68, the slider 69, the first hinge seat 60, the second hinge seat 601 and the long rod 602 are each provided with two, and are symmetrically distributed on both sides of the driving rod 4. When the slider 69 contacts the clamping assembly 7, the slider 69 can be moved along the slide groove 68 through the clamping assembly 7, so that the rotating ring 66 drives the limit frame 65 and the movable plate 62 to move in the vertical direction, and further realizes that the polishing rod 11 is close to the inner wall of the hydraulic cylinder, so as to facilitate the polishing operation.

[0048] In one embodiment of the present invention, see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7 , the clamping assembly 7 comprises:

[0049] The second driving member 71 is fixedly mounted on the middle part of the inner side of the moving frame 12. A rotating rod 72 is fixedly mounted on the output end of the second driving member 71. A moving block 73 is mounted on the outer side of the rotating rod 72. The moving block 73 is located on the inner side of the moving frame 12 and is slidably connected to the moving frame 12. The rotating rod 72 is threadedly connected to the moving block 73. A supporting block 74 is fixedly mounted on one end of the moving block 73 extending out of the moving frame 12. A limiting hole 75 is provided on the end of the supporting block 74 away from the moving block 73. A limiting rod 76 is provided on the side, and the limiting rod 76 is horizontal. A clamping plate 77 is fixedly installed on the end of the limiting rod 76 close to the driving rod 4, and the shape of the clamping plate 77 is an arc. A baffle 79 is fixedly installed on the end of the limiting rod 76 away from the clamping plate 77. A second elastic member 78 is sleeved on the outer side of the limiting rod 76, and the second elastic member 78 is located between the support block 74 and the clamping plate 77. An adjusting plate 70 is fixedly installed on the top of the support block 74, and the adjusting plate 70 is vertical and passes through the slide groove 68.

[0050] The lifting assembly 8 comprises:

[0051] The first telescopic member 81 is fixedly installed at the bottom inner end of the bracket 1, and the output end of the first telescopic member 81 is fixedly connected to the bottom side of the moving frame 12. A positioning rod 83 is fixedly installed at the top of the moving frame 12. A positioning hole 82 is provided at the top of the bracket 1, and the positioning rod 83 passes through the positioning hole 82. The positioning rod 83 is vertical.

[0052] 72 is a kind of double-axis motor, and the two output ends of the second driving member 71 are both provided with a rotating rod 72, and the rotating rod 72 is a threaded rod in the present embodiment. A moving block 73 is installed on the outer side of the rotating rod 72, and the moving block 73 is slidably connected with the inner side of the moving frame 12. A screw hole is provided on the moving block 73, and the inner side of the screw hole is threadedly connected with the outer side of the rotating rod 72. When the second driving member 71 controls the rotating rod 72 to rotate, it is convenient to realize the moving block 73 to move along the inner side of the moving frame 12. A support block 74 is fixedly installed on one end of the moving block 73 extending out of the moving frame 12. A horizontal limiting hole 75 is provided on the support frame, and a limiting rod 76 is provided inside the limiting hole 75. The limiting rod 76 is close to the driving member 71. The locking cam 76 is rotatable and is adapted to move the locking cam 76 downwards so that the locking cam 76 can move freely in the locking cam 76. When the locking cam 76 is in a state of being loose, the locking cam 76 can move freely in the locking cam 76. When the locking cam 76 is in a state of being loose, the locking cam 76 can move freely in the locking cam 76.

[0053] The second driving member 71 controls the two rotating rods 72 to rotate, so that the clamping plate 77 is close to the outer wall of the hydraulic cylinder and clamps the hydraulic cylinder. When the support block 74 continues to move, the support block 74 can compress the second elastic member 78. At this time, the adjustment plate 70 on the support block 74 contacts the slider 69 and pushes the slider 69 to move along the slide groove 68, so that the rotating rod drives the limit frame 65 and the movable plate 62 to move downward, so that the polishing rod 11 is close to the inner wall of the hydraulic cylinder. When the polishing rod 11 contacts the inner wall of the hydraulic cylinder, the second driving member 71 stops working. At this time, the clamping plate 77 clamps the hydraulic cylinder, and the polishing rod 11 contacts the inner wall of the hydraulic cylinder. Then the first driving member 3 is turned on to realize that the driving rod 4 drives the polishing rod 11 to rotate. , realizing the polishing operation of the polishing rod 11 on the inner wall of the hydraulic cylinder, and the operation is convenient; a first telescopic member 81 is provided on the bottom side of the movable frame 12, and the first telescopic member 81 can be a telescopic motor or a cylinder, etc. In the present embodiment, the first telescopic member 81 is a telescopic motor, and the movable frame 12 can be driven to move in the vertical direction by the first telescopic member 81, and the clamping assembly 7 can further drive the hydraulic cylinder to move in the vertical direction, so that the polishing rod 11 can perform a comprehensive polishing operation on the inner wall of the hydraulic cylinder, and a vertical positioning rod 83 is fixedly installed on the top of the movable frame 12, and a positioning hole 82 is provided on the top of the bracket 1, and the positioning rod 83 passes through the positioning hole 82, and the positioning rod 83 and the positioning hole 82 can ensure the stability of the movable frame 12 during the movement, thereby improving the working effect.

[0054] In one embodiment of the present invention, see Figure 1 and Figure 2 , the support assembly 9 comprises:

[0055] The support plate 91 is located on the inner side of the bracket 1 and is horizontal. A second telescopic member 94 is fixedly installed on the bottom end of the inner side of the bracket 1. The output end of the second telescopic member 94 is fixedly connected to the middle part of the bottom end of the support plate 91. A vertical support rod 92 is fixedly installed at the corner of the support plate 91. A support tube 93 is sleeved on the outer side of the bottom end of the support rod 92. The support tube 93 is fixedly installed on the bracket 1. Both the support rod 92 and the support tube 93 are vertical.

[0056] In this embodiment, the support plate 91 is located on the inner side of the bracket 1, and the support plate 91 is located on the bottom side of the clamping plate 77. A support rod 92 and a support tube 93 are installed between the support plate 91 and the bracket 1. The support rod 92 is slidably connected to the support tube 93. The support rod 92 and the support tube 93 are both vertical. There are four support rods 92 and support tubes 93, which are divided into four groups and distributed at the four corners of the support plate 91. A second telescopic member 94 is installed in the middle of the support plate 91. The second telescopic member 94 can be a telescopic motor or a stepping motor, etc. In this embodiment, the second telescopic member 94 is a telescopic motor. The support plate 91 can be driven by the second telescopic member 94 to move its position in the vertical direction. The support plate 91 can support the hydraulic cylinder. After the clamping assembly 7 clamps and fixes the hydraulic cylinder, the support plate 91 can move downward to ensure that the clamping assembly 7 can drive the hydraulic cylinder to move in the vertical direction, so that the polishing rod 11 can perform a comprehensive polishing operation on the inner wall of the hydraulic cylinder.

[0057] The working principle of the present invention is:

[0058] In the present invention, the hydraulic cylinder is first placed on the support plate 91, and then the second telescopic member 94 is controlled to drive the support plate 91 to drive the hydraulic cylinder to move upward. After reaching the clamping position, the second telescopic member 94 stops working, and then the second driving member 71 is controlled to realize that the clamping plate 77 is close to the outer wall of the hydraulic cylinder and clamps the hydraulic cylinder. When the moving block 73 continues to move, the support block 74 compresses the second elastic member 78. At this time, the adjustment block on the support block 74 contacts the slider 69 and pushes the slider 69 to move along the slide groove 68. At this time, the slider 69 compresses the first elastic member 603, and the rotating ring 66 can drive the limit frame 65 and the moving plate 62 downward through the first articulated seat 60, the second articulated seat 601 and the long rod 602. The polishing rod 11 is moved in position, and the first rotating rod 51 and the connecting rod 52 can be rotated by the rack 63 and the rotating tooth 64, so that the polishing rod 11 contacts the inner wall of the hydraulic cylinder. When the polishing rod 11 contacts the inner wall of the hydraulic cylinder fully, the second driving member 71 stops working. At this time, the clamping plate 77 clamps and fixes the hydraulic cylinder, and the polishing rod 11 contacts the inner wall of the hydraulic cylinder. Then the first driving member 3 is controlled to work. At this time, the driving rod 4 drives the polishing rod 11 to rotate, so that the polishing rod 11 and the inner wall of the hydraulic cylinder are polished. By controlling the first telescopic member 81, the movable frame 12 can drive the clamping assembly 7 and the hydraulic cylinder to move vertically, so that the polishing rod 11 can fully polish the inner wall of the hydraulic cylinder. The operation is convenient and the polishing effect is effectively improved.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0060] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An inner hole polishing machine for hydraulic cylinder machining, comprising a bracket (1) and a polishing mechanism, characterized in that: The polishing mechanism comprises: A motor frame (2) is fixedly mounted on the top of the bracket (1); a first driving member (3) is fixedly mounted on the inner side of the motor frame (2); a driving rod (4) is fixedly mounted on the output end of the first driving member (3); a fixing frame (10) is fixedly mounted on the bottom end of the driving rod (4); polishing rods (11) are provided on both sides of the fixing frame (10); a connecting assembly (5) is installed between the polishing rod (11) and the fixing frame (10) for supporting the polishing rod (11) and enabling the polishing rod (11) to change position relative to the fixing frame (10); an adjusting assembly (6) is installed between the driving rod (4) and the bracket (1); the adjusting assembly (6) is connected to the connecting assembly (5) and is used to drive the connecting assembly (5) to work so that the distance between the polishing rod (11) and the fixing frame (10) changes; A moving frame (12) is provided on the inner side of the bracket (1), and a clamping assembly (7) is installed on the moving frame (12) for supporting the hydraulic cylinder and driving the adjusting assembly (6) to work during the clamping process so that the polishing rod (11) is close to the inner wall of the hydraulic cylinder. A lifting assembly (8) is installed between the moving frame (12) and the bracket (1) for driving the moving frame (12) to drive the clamping assembly (7) to move in the vertical direction. A supporting assembly (9) is also installed on the inner side of the bracket (1) for performing preliminary supporting operations on the hydraulic cylinder.

2. The inner hole polishing machine for hydraulic cylinder machining according to claim 1, characterized in that: The connection assembly (5) comprises: A first rotating rod (51) is mounted on the fixed frame (10); both ends of the first rotating rod (51) are rotatably connected to the fixed frame (10); connecting rods (52) are fixedly mounted on the outer sides of both ends of the rotating rod; a second rotating rod (53) is fixedly mounted on one end of the connecting rod (52) away from the first rotating rod (51); a connecting frame (54) is mounted on the second rotating rod (53); the second rotating rod (53) is rotatably connected to the connecting frame (54); two of the first rotating rod (51), the second rotating rod (53) and the connecting frame (54) are each provided with, and are divided into two groups and are parallelly mounted on the fixed frame (10); four of the connecting rods (52) are provided with, and are divided into two groups and are parallelly mounted on the two first rotating rods (51); the two connecting frames (54) are fixedly connected to the polishing rod (11); two of the connecting assembly (5) and the polishing rod (11) are each provided with, and are divided into two groups and are symmetrically mounted on the fixed frame (10).

3. The inner hole polishing machine for hydraulic cylinder machining according to claim 2, characterized in that: The regulating component (6) comprises: A limiting groove (61) is located in the middle of the driving rod (4); a movable plate (62) is provided inside the limiting groove (61); racks (63) are installed on both sides of the bottom of the movable plate (62); a rotating tooth (64) is fixedly installed in the middle of the first rotating rod (51); the rotating tooth (64) is meshingly connected with the rack (63); a limiting frame (65) is fixedly installed on the top of the movable plate (62); the limiting frame (65) is sleeved on the outside of the driving rod (4); a rotating ring (66) is installed on the outside of the limiting frame (65); the rotating ring (66) is rotatably connected to the limiting frame (65); and a fixed plate (67) is fixedly installed on the outside of the rotating ring (66); A slide groove (68) is provided at the top of the bracket (1), and a slider (69) is provided inside the slide groove (68). The slider (69) is slidably connected to the slide groove (68). A first hinge seat (60) is fixedly installed on the bottom side of the slider (69). A second hinge seat (601) is fixedly installed on the fixed plate (67). A long rod (602) is installed between the first hinge seat (60) and the second hinge seat (601). Both ends of the long rod (602) are rotatably connected to the first hinge seat (60) and the second hinge seat (601). A first elastic member (603) is fixedly installed on the side of the slider (69) close to the driving rod (4), and the first elastic member (603) is located on the inner side of the slide groove (68).

4. The inner hole polishing machine for hydraulic cylinder machining according to claim 3, characterized in that: The clamping assembly (7) comprises: A second driving member (71) is fixedly mounted on the middle part of the inner side of the moving frame (12); a rotating rod (72) is fixedly mounted on the output end of the second driving member (71); a moving block (73) is mounted on the outer side of the rotating rod (72); the moving block (73) is located on the inner side of the moving frame (12) and is slidably connected to the moving frame (12); the rotating rod (72) is threadedly connected to the moving block (73); a supporting block (74) is fixedly mounted on one end of the moving block (73) extending out of the moving frame (12); a limiting hole (75) is provided on the end of the supporting block (74) away from the moving block (73); a positioning hole (75) is formed in the limiting hole (75) A limiting rod (76) is provided on the side, and the limiting rod (76) is horizontal. A clamping plate (77) is fixedly installed at one end of the limiting rod (76) close to the driving rod (4), and the shape of the clamping plate (77) is arc-shaped. A baffle (79) is fixedly installed at one end of the limiting rod (76) away from the clamping plate (77). A second elastic member (78) is sleeved on the outer side of the limiting rod (76), and the second elastic member (78) is located between the supporting block (74) and the clamping plate (77). An adjusting plate (70) is fixedly installed on the top of the supporting block (74), and the adjusting plate (70) is vertical and passes through the sliding groove (68).

5. The inner hole polishing machine for hydraulic cylinder machining according to claim 1, characterized in that: The lifting assembly (8) comprises: A first telescopic member (81) is fixedly mounted on the bottom inner end of the bracket (1); an output end of the first telescopic member (81) is fixedly connected to the bottom side of the moving frame (12); a positioning rod (83) is fixedly mounted on the top of the moving frame (12); a positioning hole (82) is provided on the top of the bracket (1); the positioning rod (83) passes through the positioning hole (82); and the positioning rod (83) is vertical.

6. The inner hole polishing machine for hydraulic cylinder machining according to claim 5, characterized in that: The support assembly (9) comprises: The support plate (91) is located inside the bracket (1) and is horizontal. A second telescopic member (94) is fixedly mounted on the bottom end of the inside of the bracket (1). The output end of the second telescopic member (94) is fixedly connected to the middle of the bottom end of the support plate (91). A vertical support rod (92) is fixedly mounted at the corner of the support plate (91). A support tube (93) is sleeved on the outer side of the bottom end of the support rod (92). The support tube (93) is fixedly mounted on the bracket (1). Both the support rod (92) and the support tube (93) are vertical.

7. The inner hole polishing machine for hydraulic cylinder machining according to claim 1, characterized in that: The polishing rod (11) is parallel to the driving rod (4) and both are vertical; the polishing rod (11) is semicircular in shape; the driving rod (4) passes through the top of the bracket (1) and is rotatably connected to the bracket (1).

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