Positioning tool for hydraulic oil cylinder production

Abstract

The invention relates to the technical field of hydraulic oil cylinder production, in particular to a positioning tool for hydraulic oil cylinder production. The top end of the outer wall of the base is fixedly connected with a supporting column. A rotating column is rotationally connected to one side of the outer wall of the supporting column; a connecting plate is fixedly connected to one end of the outer wall of the rotating column; a pair of sliding grooves is formed in one side of the outer wall of the connecting plate; the inner side walls of the pair of sliding grooves are slidably connected with placing plates. A hydraulic oil cylinder is placed on a lower placing plate, then an upper first threaded rod is rotated to drive the upper placing plate to move downwards, the pair of placing plates clamp and fix the hydraulic oil cylinder, at the moment, a motor drives a worm to rotate, and the worm drives a rotating column to rotate through a worm gear; and the rotating column rotates to drive the connecting plate and the pair of placing plates to rotate, so that the hydraulic oil cylinder is turned over, the two ends of the hydraulic oil cylinder are more convenient and simpler to machine, and the production and machining efficiency of the hydraulic oil cylinder is improved.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic cylinder production, in particular to a positioning tool for hydraulic cylinder production. Background Art

[0002] A hydraulic cylinder is a device that converts hydraulic energy into mechanical energy. It has the advantages of simple structure, reliable operation, and smooth movement. It can work in various complex environments and has high precision and reliability, making it widely used in engineering machinery, shipbuilding industry, manufacturing industry and other fields.

[0003] In the prior art, when the hydraulic cylinder is being produced and processed, both ends and the outer side wall thereof need to be processed. Therefore, after the top end is processed, it needs to be released from the fixation, and then the position of the hydraulic cylinder needs to be changed to make it flipped, and then it needs to be fixed before the bottom end can be processed. This makes the processing of both ends of the hydraulic cylinder more complicated and time-consuming, thereby affecting the production and processing efficiency of the hydraulic cylinder. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that during the production and processing of the hydraulic cylinder, both ends and the outer side wall need to be processed, so that after the top end is processed, it needs to be released, and then the position of the hydraulic cylinder needs to be changed to make it flipped, and then it needs to be fixed before the bottom end can be processed, which makes the processing of the two ends of the hydraulic cylinder more cumbersome and too time-consuming, thereby affecting the production and processing efficiency of the hydraulic cylinder. A positioning tool for the production of hydraulic cylinders is proposed.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A positioning tool for the production of hydraulic cylinders, comprising a base; a support column is fixedly connected to the top end of the outer wall of the base; a rotating column is rotatably connected to one side of the outer wall of the support column; a connecting plate is fixedly connected to one end of the outer wall of the rotating column; a pair of sliding grooves are opened on one side of the outer wall of the connecting plate; a pair of inner side walls of the sliding grooves are slidably connected to a placement plate; a first threaded rod is rotatably connected to the opposite sides of the inner walls of the pair of sliding grooves, and the opposite ends of the outer walls of the pair of first threaded rods respectively penetrate a pair of sliding grooves and the connecting plate, and the pair of first threaded rods are respectively threadedly connected to a pair of placement plates; a positioning plate is provided at the center of the opposite sides of the outer walls of the pair of placement plates; a worm gear is fixedly connected to the outer wall of the rotating column; a motor is fixedly connected to the top end of the outer wall of the base; a worm is provided at the output end of the motor, and the worm and the worm gear are meshed with each other.

[0007] As a preferred embodiment of the present invention, the positioning plate includes a threaded block and a positioning block; one end of the outer wall of the positioning block is fixedly connected to one end of the outer wall of the threaded block; a pair of threaded grooves are provided on opposite sides of the outer walls of the placing plates; the pair of threaded grooves are respectively matched with a pair of threaded blocks.

[0008] As a preferred embodiment of the present invention, square shells are fixedly connected to opposite sides of the outer wall of the connecting plate, and one side of the outer wall of the square shell is open; a pair of inner side walls of the square shells are slidably connected to slide plates, and the pair of slide plates are symmetrical about the center line of the connecting plate; a double-threaded rod is rotatably connected to one side of the inner wall of one of the pair of square shells, and one end of the outer wall of the double-threaded rod passes through a pair of square shells, the connecting plate and a pair of slide plates, and the double-threaded rod is threadedly connected to the pair of slide plates; a clamping plate is provided on the opposite side of the outer wall of the pair of slide plates.

[0009] As a preferred embodiment of the present invention, a pair of slide plates are provided with a square through groove on one side of their outer walls; a pair of clamping plates are fixedly connected with square blocks on the opposite sides of their outer walls, and a pair of square blocks are slidably placed in the pair of square through grooves respectively; a locking groove is provided on the top of the outer wall of the square block; a first through groove is provided on the top of the outer wall of the slide plate; a first square shell is fixedly connected to the top of the outer wall of the slide plate, and the first square shell is connected to the first through groove; a locking block is fixedly connected to the top of the inner wall of the first square shell through a first spring, and the locking block matches the locking groove; a stretching rod is fixedly connected to the top of the outer wall of the locking block, and the top of the outer wall of the stretching rod passes through the first square shell.

[0010] As a preferred embodiment of the present invention, the clamping plate includes an arc-shaped bottom plate and a clamping block; the arc-shaped bottom plate is convex; the outer side walls of a pair of the clamping blocks are slidably connected to the inner side wall of the arc-shaped bottom plate, and the pair of clamping blocks are symmetrical about the center line of the arc-shaped bottom plate; a pair of second threaded rods are rotatably connected to the bottom end of the inner wall of the arc-shaped bottom plate, and the pair of second threaded rods respectively pass through a pair of clamping blocks, and the pair of second threaded rods are respectively threadedly connected to the pair of clamping blocks.

[0011] As a preferred embodiment of the present invention, the placement plate includes a connecting block and a placement plate; the outer wall of the connecting block is provided with a second through groove, and the second through groove is L-shaped; the outer wall of one end of the placement plate is slidably connected to the inner wall of the second through groove; a pair of circular grooves are provided on one side of the outer wall of the connecting block; a fixing block is fixedly connected to one side of the outer wall of the placement plate; a bolt is threadedly connected to one side of the outer wall of the fixing block, and one end of the outer wall of the bolt passes through the fixing block, and the bolt matches the pair of circular grooves.

[0012] As a preferred embodiment of the present invention, a pair of rotating plates are rotatably connected to opposite sides of the outer walls of the placing plates, and the rotating plates are ring-shaped; an annular rack is fixedly connected to the outer side walls of the rotating plates; a rotating rod is rotatably connected to one side of the outer wall of the placing plates through a first square plate; a first gear is fixedly connected to one end of the outer wall of the rotating rod, and the first gear and the annular rack are meshed with each other.

[0013] As a preferred embodiment of the present invention, the rotating rod includes a circular shell and a square rod; the cross-section of the circular shell is an outer circle and an inner square; the outer wall of the square rod is slidably connected to the inner wall of the circular shell; a third spring is fixedly connected to one side of the inner wall of the circular shell, and one end of the outer wall of the third spring is fixedly connected to one end of the outer wall of the square rod; a cross plate is fixedly connected to one end of the outer wall of the square rod; one side of the outer wall of the cross plate is slidably connected to a limiting rod; limiting grooves are provided on opposite sides of the outer walls of a pair of placing plates, and a pair of limiting grooves are respectively matched with a pair of limiting rods.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The positioning plate includes a threaded block and a positioning block, and a pair of threaded grooves are matched with a pair of threaded blocks respectively, so that the positioning plate on the placement plate can be rotated to move the positioning block out of the threaded groove on the placement plate, and the fixation is released, so that the positioning plate can be disassembled and installed, so that it is more convenient to clean or replace the positioning plate. By replacing the positioning plate, when the device processes different types of hydraulic cylinders, different sizes of positioning plates can be replaced, so that different types of hydraulic cylinders can be positioned and limited by the device, so that the device is more practical and convenient, and the scope of application is increased.

[0016] 2. The clamping plate includes an arc-shaped bottom plate and a clamping block. When the clamping plate is fixed, the clamping block can be driven to move by rotating the second threaded rod, so that when the clamping plate is clamped and fixed, the positions of the arc-shaped bottom plate and the clamping block can be adjusted, so that the clamping range of the clamping plate is increased, so that the hydraulic cylinder is clamped and fixed, and it is more stable. When the hydraulic cylinder is long, the length of the entire clamping plate can be lengthened by moving the clamping block, so that it is more convenient and stable to clamp and fix a long hydraulic cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0018] Figure 1 It is the main structure diagram of the present invention;

[0019] Figure 2 It is a structural diagram of the rotating column, worm gear, motor, worm and connecting plate of the present invention;

[0020] Figure 3 It is a partial structural diagram of the present invention;

[0021] Figure 4 It is an exploded structural diagram of the connection block and the placement plate of the present invention;

[0022] Figure 5 It is an exploded structural diagram of the placement plate, the rotating plate, the annular rack and the positioning block of the present invention;

[0023] Figure 6 It is an exploded structural diagram of the circular shell, square rod and placement plate of the present invention;

[0024] Figure 7 It is an exploded structural diagram of the sliding plate, the square block, the first square shell and the positioning block of the present invention;

[0025] Figure 8 It is a structural diagram of the arc bottom plate, the clamping block and the second threaded rod of the present invention;

[0026] In the figure: 1, base; 2, support column; 3, rotating column; 4, connecting plate; 5, sliding groove; 6, placement plate; 7, first threaded rod; 8, positioning plate; 9, worm gear; 10, motor; 11, worm; 801, thread block; 802, positioning block; 12, thread groove; 13, square shell; 14, slide plate; 15, double threaded rod; 16, clamping plate; 17, square through groove; 18, square block; 19, positioning groove; 20, first through groove; 21, first A square shell; 22, a positioning block; 23, a stretching rod; 161, an arc bottom plate; 162, a clamping block; 24, a second threaded rod; 601, a connecting block; 602, a placement plate; 25, a second through groove; 26, a circular groove; 27, a fixing block; 28, a bolt; 29, a rotating plate; 30, an annular rack; 31, a rotating rod; 32, a first gear; 311, a circular shell; 312, a square rod; 33, a cross plate; 34, a limiting rod; 35, a limiting groove. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment 1:

[0029] See also Figure 1-Figure 7As shown, a positioning tool for hydraulic cylinder production comprises a base 1; a support column 2 is fixedly connected to the top of the outer wall of the base 1; a rotating column 3 is rotatably connected to one side of the outer wall of the support column 2; a connecting plate 4 is fixedly connected to one end of the outer wall of the rotating column 3; a pair of sliding grooves 5 are opened on one side of the outer wall of the connecting plate 4; the inner side walls of the pair of sliding grooves 5 are slidably connected to a placement plate 6; the opposite sides of the inner walls of the pair of sliding grooves 5 are rotatably connected to a first threaded rod 7, and the opposite ends of the outer walls of the pair of first threaded rods 7 respectively penetrate the pair of sliding grooves 5 and the connecting plate 4, and the pair of first threaded rods 7 are respectively threadedly connected to the pair of placement plates 6; a positioning plate 8 is provided at the center of the opposite side of the outer wall of the pair of placement plates 6; a worm gear 9 is fixedly connected to the outer wall of the rotating column 3; a motor 10 is fixedly connected to the top of the outer wall of the base 1; a worm 11 is provided at the output end of the motor 10, and the worm 11 and the worm gear 9 are meshed with each other. By placing the hydraulic cylinder on the placement plate 6 below, when the top of the hydraulic cylinder is processed, the first threaded rod 7 on the top is rotated Rod 7, because a pair of first threaded rods 7 are respectively threadedly connected with a pair of placement plates 6, when the upper first threaded rod 7 rotates, it will drive the upper placement plate 6 to move downward, so that the pair of placement plates 6 clamp the hydraulic cylinder and fix it, and through the positioning plate 8, when the hydraulic cylinder is placed, the inner wall of the hydraulic cylinder and the outer wall of the positioning plate 8 contact each other, so that the positioning plate 8 can limit the hydraulic cylinder and place it in a suitable position. At this time, the motor 10 drives the worm 11 to rotate. Because the worm 11 and the worm gear 9 are meshed with each other, the worm 11 drives the rotating column 3 to rotate through the worm gear 9. The rotation of the rotating column 3 will drive the connecting plate 4 and the pair of placement plates 6 to rotate, so that the top of the hydraulic cylinder becomes the bottom, and the bottom becomes the top. At this time, the first threaded rod 7 now located at the top is reversed to move the upper placement plate 6 upward, so that the bottom between the hydraulic cylinder and the current top are processed, which makes it more convenient and simple to process the two ends of the hydraulic cylinder, thereby improving the production and processing efficiency of the hydraulic cylinder.

[0030] Square shells 13 are fixedly connected to the opposite sides of the outer wall of the connecting plate 4, and one side of the outer wall of the square shell 13 is open; the inner side walls of a pair of square shells 13 are slidably connected with slide plates 14, and the pair of slide plates 14 are symmetrical about the center line of the connecting plate 4; a double-threaded rod 15 is rotatably connected to one side of the inner wall of one of the pair of square shells 13, and one end of the outer wall of the double-threaded rod 15 passes through a pair of square shells 13, the connecting plate 4 and a pair of slide plates 14, and the double-threaded rod 15 is threadedly connected to the pair of slide plates 14; a clamping plate 16 is provided on the opposite side of the outer wall of the pair of slide plates 14, and by rotating the double-threaded rod 15, because the double-threaded rod 15 is threadedly connected to the pair of slide plates 14, the rotation of the double-threaded rod 15 drives the pair of slide plates 14 to move toward the center or both sides of the placement plate 6 at the same time, so that the movement of the pair of slide plates 14 drives the pair of clamping plates 16, so that the pair of clamping plates 16 clamps and fixes the hydraulic cylinder placed on the placement plate 6, so that the hydraulic cylinder is produced and loaded The working hours are more stable, and because the square shell 13 is fixedly connected to the connecting plate 4, when the connecting plate 4 rotates to drive the hydraulic cylinder to flip, the clamping plate 16 will rotate accordingly, thereby continuing to clamp and fix the hydraulic cylinder, so that the pair of clamping plates 16 not only fix the hydraulic cylinder when it is produced and processed, making it more stable during production and processing, but also clamp and fix and limit it when the hydraulic cylinder is flipped, so that it is not easy to move and disengage when flipping, and reduce the pressure on the positioning plate 8 when the hydraulic cylinder is flipped, so that the positioning plate 8 is not easily damaged when the hydraulic cylinder is flipped, making the hydraulic cylinder more stable and safe when flipping, and reducing the damage rate of the positioning plate 8, increasing the service life of the positioning plate 8, and when both sides of the hydraulic cylinder are processed, the double threaded rod 15 can be reversed to move a pair of slides 14 and the clamping plate 16, release the fixation of the hydraulic cylinder, and make it convenient to process the outer wall of the hydraulic cylinder.

[0031] The positioning plate 8 includes a threaded block 801 and a positioning block 802; one end of the outer wall of the positioning block 802 is fixedly connected to one end of the outer wall of the threaded block 801; a threaded groove 12 is provided on the opposite side of the outer wall of a pair of placement plates 6; the pair of threaded grooves 12 are matched with a pair of threaded blocks 801 respectively. By the positioning plate 8 including the threaded block 801 and the positioning block 802, and the pair of threaded grooves 12 are matched with a pair of threaded blocks 801 respectively, the positioning plate 8 on the placement plate 6 can be rotated to move the positioning block 802 out of the threaded groove 12 on the placement plate 6, and the fixation is released, so that the positioning plate 8 can be disassembled and installed, thereby making it more convenient to clean or replace the positioning plate 8. By replacing the positioning plate 8, when the device is used to process different types of hydraulic cylinders, different types of hydraulic cylinders can be positioned and limited by replacing positioning plates 8 of different sizes, thereby making the device more practical and convenient, and the scope of application is increased.

[0032] The placement plate 6 includes a connecting block 601 and a placement plate 602; the outer wall of the connecting block 601 is provided with a second through slot 25, and the second through slot 25 is L-shaped; the outer wall of one end of the placement plate 602 is slidably connected to the inner wall of the second through slot 25; a pair of circular grooves 26 are provided on one side of the outer wall of the connecting block 601; a fixing block 27 is fixedly connected to one side of the outer wall of the placement plate 602; a bolt 28 is threadedly connected to one side of the outer wall of the fixing block 27, and one end of the outer wall of the bolt 28 passes through the fixing block 27, and the bolt 28 matches with a pair of circular grooves 26, and the placing plate 6 includes a connecting block 601 and a placing plate 602, so that the pair of placing plates 6 clamp and fix the hydraulic cylinder and then flip it over. After the hydraulic cylinder flips over, the bolt 28 on the upper placing plate 6 is rotated to move the bolt 28 out of the circular groove 26, and the fixing of the connecting block 601 and the placing plate 602 is released, and then the placing plate 602 is slid to move the placing plate 602 along the L-shaped second through groove 25, so that the entire placing plate 6 is in an inverted L shape. 601 and 602 are fixed. Because the placement plate 602 moves into an L shape, the top of the entire hydraulic cylinder is exposed. When the hydraulic cylinder needs to be processed by a large machine, the top of the entire hydraulic cylinder can be exposed by sliding the placement plate 602, making it more convenient to process. Because the second through groove 25 is in an L shape, the placement plate 602 moves up first, then rotates, and finally moves horizontally when sliding. When the placement plate 602 moves, it is not easily affected by the positioning plate 8. When the hydraulic cylinder is processed as a whole and needs to continue to process the same type of hydraulic cylinder, when the top of the same type of hydraulic cylinder is processed and needs to be turned over, it is only necessary to release the fixing of the bolt 28 and then reset the upper placement plate 602, so that the pair of placement plates 6 can clamp and fix the hydraulic cylinder, so that there is no need to rotate the first threaded rod 7, making the device more convenient when processing the same type of hydraulic cylinder.

[0033] The outer wall of a pair of placement plates 6 is rotatably connected to a rotating plate 29 on opposite sides, and the rotating plate 29 is ring-shaped; an annular rack 30 is fixedly connected to the outer side wall of the rotating plate 29; one side of the outer wall of the placement plate 6 is rotatably connected to a rotating rod 31 through a first square plate; one end of the outer wall of the rotating rod 31 is fixedly connected to a first gear 32, and the first gear 32 and the annular rack 30 are meshed with each other. When the outer surface of the hydraulic cylinder needs to be processed, the hydraulic cylinder is fixed by a pair of placement plates 6, and then the rotating rod 31 is rotated. The rotation of the rotating rod 31 drives the first gear 32 to rotate. Because the first gear 32 and the annular rack 30 are meshed with each other, the rotation of the first gear 32 will drive the annular rack 30 to rotate, and the rotation of the annular rack 30 will drive the rotating plate 29 to rotate, thereby rotating the hydraulic cylinder, so that when the entire outer surface of the hydraulic cylinder is processed, there is no need to adjust the position. Only the rotating rod 31 needs to be rotated to enable the staff to process the entire outer surface of the hydraulic cylinder.

[0034] The rotating rod 31 includes a circular shell 311 and a square rod 312; the cross section of the circular shell 311 is an outer circle and an inner square; the outer wall of the square rod 312 is slidably connected to the inner wall of the circular shell 311; a third spring is fixedly connected to one side of the inner wall of the circular shell 311, and one end of the outer wall of the third spring is fixedly connected to one end of the outer wall of the square rod 312; a cross plate 33 is fixedly connected to one end of the outer wall of the square rod 312; one side of the outer wall of the cross plate 33 is slidably connected to the limiting rod 34; limiting grooves 35 are provided on opposite sides of the outer walls of a pair of placement plates 6, and a pair of limiting grooves 35 are respectively matched with a pair of limiting rods 34. By making the rotating rod 31 include the circular shell 311 and the square rod 312, when the hydraulic cylinder does not need to be rotated, only the cross on the square rod 312 needs to be moved. When the limit rod 34 on the plate 33 is inserted into the limit groove 35 on the placement plate 6, the rotating plate 29 can be fixed so that the rotating plate 29 cannot move. When the hydraulic cylinder needs to be rotated, the cross plate 33 is pulled to make the cross plate 33 drive the square rod 312 and the limit rod 34 to move. At this time, the limit rod 34 moves out of the limit groove 35 to release the fixation, and then the square rod 312 is rotated to make the square rod 312 drive the circular rod and the first gear 32 to rotate, thereby rotating the annular rack 30 and the rotating plate 29, so that the rotation and fixing operations of the rotating plate 29 are more convenient and simple. Moreover, since the limit rod 34 and the cross plate 33 are slidably connected, when rotation is required, the limit rod 34 can be moved, so that when the upper and lower rotating rods 31 move, the limit rod 34 will not affect its rotation.

[0035] Embodiment 2:

[0036] See also Figure 1 and Figure 7-Figure 8As shown, a square through groove 17 is provided on one side of the outer wall of a pair of slide plates 14; a square block 18 is fixedly connected to the opposite side of the outer wall of a pair of clamping plates 16, and the pair of square blocks 18 are slidably placed in the pair of square through grooves 17 respectively; a positioning groove 19 is provided on the top of the outer wall of the square block 18; a first through groove 20 is provided on the top of the outer wall of the slide plate 14; a first square shell 21 is fixedly connected to the top of the outer wall of the slide plate 14, and the first square shell 21 is connected to the first through groove 20; a positioning block 22 is fixedly connected to the top of the inner wall of the first square shell 21 through a first spring, and the positioning block 22 matches the positioning groove 19; a stretching rod 23 is fixedly connected to the top of the outer wall of the positioning block 22, and the top of the outer wall of the stretching rod 23 passes through the first square shell 21. When it is necessary to clamp and fix hydraulic cylinders of different models, the stretching rod 23 is pulled to drive the positioning block 22 to move, so that the positioning block 22 moves out The clamping plate 16 is replaced by the clamping groove 19, and the square block 18 and the slide plate 14 are released. The square block 18 and the clamping plate 16 are taken out, and then the clamping plate 16 with appropriate size and curvature is taken out, so that the square block 18 on the clamping plate 16 with appropriate size and curvature is inserted into the square through groove 17 on the slide plate 14, and then the clamping block 22 is inserted into the clamping groove 19 to complete the replacement of the clamping plate 16, so that the device can clamp and fix hydraulic cylinders of different types by replacing clamping plates 16 of different types, so that hydraulic cylinders of different types can be better and more stably fixed during production and processing, so that the hydraulic cylinders are not easy to move or shift during production and processing, so that the quality of the hydraulic cylinders after production and processing is guaranteed, and when the clamping plate 16 is lost, the replacement cost can be reduced by replacing the clamping plate 16, so that the device does not need to replace the entire device when the clamping plate 16 is damaged.

[0037] The clamping plate 16 includes an arc-shaped bottom plate 161 and a clamping block 162; the arc-shaped bottom plate 161 is convex; the outer side walls of a pair of clamping blocks 162 are slidably connected to the inner side walls of the arc-shaped bottom plate 161, and the pair of clamping blocks 162 are symmetrical about the center line of the arc-shaped bottom plate 161; a pair of second threaded rods 24 are rotatably connected to the bottom end of the inner wall of the arc-shaped bottom plate 161, and the pair of second threaded rods 24 respectively penetrate the pair of clamping blocks 162, and the pair of second threaded rods 24 are respectively threadedly connected to the pair of clamping blocks 162, and the clamping plate 16 includes the arc-shaped bottom plate 161 and The clamping block 162 can move the clamping plate 16 by rotating the second threaded rod 24 when the clamping plate 16 is being fixed, so that the positions of the arc-shaped bottom plate 161 and the clamping block 162 can be adjusted when the clamping plate 16 is being clamped and fixed, thereby increasing the clamping and fixing range of the clamping plate 16, thereby making the hydraulic cylinder more stable when clamped and fixed, and when the hydraulic cylinder is longer, the length of the entire clamping plate 16 can be lengthened by moving the clamping block 162, thereby making it more convenient and stable to clamp and fix a longer hydraulic cylinder.

[0038] When the present invention is in use, when the hydraulic cylinder is being produced and processed, the hydraulic cylinder is placed on the placement plate 6 below. When the top of the hydraulic cylinder is processed, the first threaded rod 7 above is rotated. Since the pair of first threaded rods 7 are respectively threadedly connected with the pair of placement plates 6, when the first threaded rod 7 above is rotated, it will drive the placement plate 6 above to move downward, so that the pair of placement plates 6 clamp the hydraulic cylinder and fix it. When the hydraulic cylinder is placed, the inner wall of the hydraulic cylinder and the outer wall of the positioning plate 8 are in contact with each other through the positioning plate 8, so that the positioning plate 8 can limit the hydraulic cylinder and place it in a suitable position. At this time, the motor 10 drives the worm 11 to rotate. Since the worm 11 and the worm wheel 9 are meshed with each other, the worm 11 drives the rotating column 3 to rotate through the worm wheel 9. The rotation of the rotating column 3 will drive the connecting plate 4 and the pair of placement plates 6 to rotate, so that the top of the hydraulic cylinder becomes the bottom, and the bottom becomes the top. At this time, the first threaded rod 7 now located at the top is reversed to move the upper placement plate 6 upward, so that the bottom between the hydraulic cylinders and the top are now processed, making it more convenient and simple to process the two ends of the hydraulic cylinder, thereby improving the production and processing efficiency of the hydraulic cylinder. The positioning plate 8 includes a threaded block 801 and a positioning block 802, and a pair of threaded grooves 12 are respectively matched with a pair of threaded blocks 801, so that the positioning plate 8 on the placement plate 6 can be rotated to move the positioning block 802 out of the threaded groove 12 on the placement plate 6 to release the fixation, so that the positioning plate 8 can be disassembled and installed, so that the positioning plate 8 needs to be cleaned or The replacement is more convenient, and by replacing the positioning plate 8, when the device is processing different types of hydraulic cylinders, different types of hydraulic cylinders can be positioned and limited by replacing the positioning plates 8 of different sizes, thereby making the device more practical and convenient, and the scope of application is increased. By rotating the double-threaded rod 15, because the double-threaded rod 15 is threadedly connected with a pair of slides 14, the rotation of the double-threaded rod 15 drives the pair of slides 14 to move toward the center or both sides of the placement plate 6 at the same time, so that the movement of the pair of slides 14 drives the pair of clamping plates 16, so that the pair of clamping plates 16 clamps and fixes the hydraulic cylinder placed on the placement plate 6, so that the hydraulic cylinder is more stable during production and processing, and because of the square shell 13 is fixedly connected to the connecting plate 4, so that when the connecting plate 4 rotates to drive the hydraulic cylinder to flip, the clamping plate 16 will rotate accordingly, thereby continuing to clamp and fix the hydraulic cylinder, so that the pair of clamping plates 16 not only fixes the hydraulic cylinder when it is being produced and processed, making it more stable during production and processing, but also clamps and fixes it and limits it when the hydraulic cylinder is flipped, so that it is not easy to move and disengage when it is flipped, and reduces the pressure on the positioning plate 8 when the hydraulic cylinder is flipped, so that the positioning plate 8 is not easily damaged when the hydraulic cylinder is flipped, making the hydraulic cylinder more stable and safe when flipping, and reducing the damage rate of the positioning plate 8, increasing the service life of the positioning plate 8, and when both sides of the hydraulic cylinder are processed, the double threaded rod 15 can be reversed,A pair of slide plates 14 and the clamping plate 16 are moved to release the fixation of the hydraulic cylinder, so that the outer wall of the hydraulic cylinder can be easily processed. When it is necessary to clamp and fix hydraulic cylinders of different types, the stretching rod 23 is pulled to drive the clamping block 22 to move, so that the clamping block 22 moves out of the clamping groove 19, and the fixation of the square block 18 and the slide plate 14 is released. Then the square block 18 and the clamping plate 16 are taken out, and then the clamping plate 16 with the appropriate size and curvature is taken out, and the square block 18 on the clamping plate 16 with the appropriate size and curvature is inserted into the square through groove 17 on the slide plate 14, and then the clamping block 22 is inserted into the clamping groove 19 to complete the replacement of the clamping plate 16, so that the device can clamp and fix different types of clamping plates 16 by replacing them. The invention relates to a hydraulic cylinder of different types, so that different types of hydraulic cylinders can be better and more stably fixed during production and processing, so that the hydraulic cylinder is not easy to move or shift during production and processing, so that the quality of the hydraulic cylinder after production and processing is guaranteed, and when the clamping plate 16 is lost, the replacement cost can be reduced by replacing the clamping plate 16, so that the device does not need to replace the entire device when the clamping plate 16 is damaged, and the clamping plate 16 includes an arc-shaped bottom plate 161 and a clamping block 162, so that when the clamping plate 16 is fixed, the clamping block 162 can be driven to move by rotating the second threaded rod 24, so that when the clamping plate 16 is clamped and fixed, the positions of the arc-shaped bottom plate 161 and the clamping block 162 can be adjusted, so that the clamping plate 16 can be fixed. The clamping and fixing range is increased, so that the hydraulic cylinder is more stable when being clamped and fixed, and when the hydraulic cylinder is long, the length of the entire clamping plate 16 can be lengthened by moving the clamping block 162, so that it is more convenient and stable to clamp and fix the longer hydraulic cylinder, and the placement plate 6 includes a connecting block 601 and a placement plate 602, so that a pair of placement plates 6 clamp and fix the hydraulic cylinder and then flip it over. After the hydraulic cylinder is flipped over, the bolt 28 on the upper placement plate 6 is rotated to move the bolt 28 out of the circular groove 26, the fixation of the connecting block 601 and the placement plate 602 is released, and then the placement plate 602 is slid to move the placement plate 602 along the L-shaped second through groove 25, so that the entire placement plate 6 is in an inverted L shape, and then rotated The bolt 28 is inserted into another circular groove 26 to fix the connecting block 601 and the placement plate 602. Because the placement plate 602 moves into an L shape, the top of the entire hydraulic cylinder is exposed. Therefore, when the hydraulic cylinder needs to be processed using large machinery, the top of the entire hydraulic cylinder can be exposed by sliding the placement plate 602, making it more convenient to process. Because the second through groove 25 is in an L shape, the placement plate 602 first moves up and then rotates when sliding, and finally moves horizontally. When the placement plate 602 moves, it is not easily affected by the positioning plate 8. When the overall processing of the hydraulic cylinder is completed and the same type of hydraulic cylinder needs to be processed, when the top processing of the same type of hydraulic cylinder is completed and needs to be turned over, it is only necessary to release the fixing of the bolt 28.By resetting the upper placement plate 602, the pair of placement plates 6 can be used to clamp and fix the hydraulic cylinder, so that there is no need to rotate the first threaded rod 7, making the device more convenient for processing the same type of hydraulic cylinder. When the outer surface of the hydraulic cylinder needs to be processed, the hydraulic cylinder is fixed by a pair of placement plates 6, and then the rotating rod 31 is rotated. The rotation of the rotating rod 31 drives the first gear 32 to rotate. Since the first gear 32 and the annular rack 30 are meshed with each other, the rotation of the first gear 32 will drive the annular rack 30 to rotate, and the rotation of the annular rack 30 will drive the rotating plate 29 to rotate, thereby rotating the hydraulic cylinder. When the entire outer surface of the hydraulic cylinder is processed, there is no need to adjust the position. Only the rotating rod 31 needs to be rotated to enable the staff to process the entire outer surface of the hydraulic cylinder, and the rotating rod 31 including the circular The shaped shell 311 and the square rod 312 make it possible to fix the rotating plate 29 by inserting the limiting rod 34 on the cross plate 33 on the square rod 312 into the limiting groove 35 on the placing plate 6 when the hydraulic cylinder does not need to be rotated, so that the rotating plate 29 cannot move. When the hydraulic cylinder needs to be rotated, the cross plate 33 is pulled to make the cross plate 33 drive the square rod 312 and the limiting rod 34 to move. At this time, the limiting rod 34 moves out of the limiting groove 35 to release the fixation, and then the square rod 312 is rotated to make the square rod 312 drive the circular rod and the first gear 32 to rotate, so that the annular rack 30 and the rotating plate 29 rotate, so that the rotation and fixing operations of the rotating plate 29 are more convenient and simple. Moreover, because the limiting rod 34 and the cross plate 33 are slidably connected, when rotation is required, the limiting rod 34 can be moved, so that when the upper and lower rotating rods 31 move, the limiting rod 34 will not affect their rotation.

[0039] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A positioning tool for hydraulic cylinder production, comprising a base (1); a support column (2) is fixedly connected to the top of the outer wall of the base (1); a rotating column (3) is rotatably connected to one side of the outer wall of the support column (2); a connecting plate (4) is fixedly connected to one end of the outer wall of the rotating column (3); characterized in that: A pair of sliding grooves (5) are provided on one side of the outer wall of the connecting plate (4); the inner side walls of the pair of sliding grooves (5) are slidably connected to a placement plate (6); the opposite sides of the inner walls of the pair of sliding grooves (5) are rotatably connected to a first threaded rod (7), and the opposite ends of the outer walls of the pair of first threaded rods (7) respectively penetrate the pair of sliding grooves (5) and the connecting plate (4), and the pair of first threaded rods (7) are respectively threadedly connected to the pair of placement plates (6); a positioning plate (8) is provided at the center of the opposite side of the outer walls of the pair of placement plates (6); the outer side wall of the rotating column (3) is fixedly connected to a worm gear (9); the top end of the outer wall of the base (1) is fixedly connected to a motor (10); a worm (11) is provided at the output end of the motor (10), and the worm (11) and the worm gear (9) are meshed with each other.

2. A positioning tool for hydraulic cylinder production according to claim 1, characterized in that: The positioning plate (8) comprises a threaded block (801) and a positioning block (802); one end of the outer wall of the positioning block (802) is fixedly connected to one end of the outer wall of the threaded block (801); a threaded groove (12) is provided on opposite sides of the outer walls of a pair of the placement plates (6); the pair of threaded grooves (12) are matched with a pair of threaded blocks (801) respectively.

3. A positioning tool for hydraulic cylinder production according to claim 2, characterized in that: Square shells (13) are fixedly connected to opposite sides of the outer wall of the connecting plate (4), and one side of the outer wall of the square shell (13) is open; the inner side walls of a pair of the square shells (13) are slidably connected to slide plates (14), and the pair of slide plates (14) are symmetrical about the center line of the connecting plate (4); a double-threaded rod (15) is rotatably connected to one side of the inner wall of one of the pair of square shells (13), and one end of the outer wall of the double-threaded rod (15) penetrates the pair of square shells (13), the connecting plate (4) and the pair of slide plates (14), and the double-threaded rod (15) is threadedly connected to the pair of slide plates (14); and a clamping plate (16) is provided on opposite sides of the outer walls of the pair of slide plates (14).

4. A positioning tool for hydraulic cylinder production according to claim 3, characterized in that: A square through slot (17) is provided on one side of the outer wall of the pair of slide plates (14); a square block (18) is fixedly connected to the opposite side of the outer wall of the pair of clamping plates (16), and the pair of square blocks (18) are respectively slidably placed in the pair of square through slots (17); a locking slot (19) is provided on the top of the outer wall of the square block (18); a first through slot (20) is provided on the top of the outer wall of the slide plate (14); a first square shell (21) is fixedly connected to the top of the outer wall of the slide plate (14), and the first square shell (21) is connected to the first through slot (20); a locking block (22) is fixedly connected to the top of the inner wall of the first square shell (21) through a first spring, and the locking block (22) matches the locking slot (19); a stretching rod (23) is fixedly connected to the top of the outer wall of the locking block (22), and the top of the outer wall of the stretching rod (23) passes through the first square shell (21).

5. A positioning tool for hydraulic cylinder production according to claim 4, characterized in that: The clamping plate (16) comprises an arc-shaped bottom plate (161) and a clamping block (162); the arc-shaped bottom plate (161) is convex; the outer side walls of a pair of the clamping blocks (162) are slidably connected to the inner side walls of the arc-shaped bottom plate (161), and the pair of clamping blocks (162) are symmetrical about the center line of the arc-shaped bottom plate (161); the bottom end of the inner wall of the arc-shaped bottom plate (161) is rotatably connected to a pair of second threaded rods (24), and the pair of second threaded rods (24) respectively penetrate the pair of clamping blocks (162), and the pair of second threaded rods (24) are respectively threadedly connected to the pair of clamping blocks (162).

6. A positioning tool for hydraulic cylinder production according to claim 1, characterized in that: The placement plate (6) comprises a connecting block (601) and a placement plate (602); the outer wall of the connecting block (601) is provided with a second through groove (25), and the second through groove (25) is L-shaped; the outer wall of one end of the placement plate (602) is slidably connected to the inner wall of the second through groove (25); a pair of circular grooves (26) are provided on one side of the outer wall of the connecting block (601); a fixing block (27) is fixedly connected to one side of the outer wall of the placement plate (602); a bolt (28) is threadedly connected to one side of the outer wall of the fixing block (27), and one end of the outer wall of the bolt (28) passes through the fixing block (27), and the bolt (28) matches the pair of circular grooves (26).

7. A positioning tool for hydraulic cylinder production according to claim 6, characterized in that: The outer walls of the pair of placement plates (6) are rotatably connected to a rotating plate (29) at opposite sides, and the rotating plate (29) is in a ring shape; the outer wall of the rotating plate (29) is fixedly connected to an annular rack (30); one side of the outer wall of the placement plate (6) is rotatably connected to a rotating rod (31) via a first square plate; one end of the outer wall of the rotating rod (31) is fixedly connected to a first gear (32), and the first gear (32) and the annular rack (30) are meshed with each other.

8. A positioning tool for hydraulic cylinder production according to claim 7, characterized in that: The rotating rod (31) comprises a circular shell (311) and a square rod (312); the cross section of the circular shell (311) is in the shape of an outer circle and an inner square; the outer wall of the square rod (312) is slidably connected to the inner wall of the circular shell (311); a third spring is fixedly connected to one side of the inner wall of the circular shell (311), and one end of the outer wall of the third spring is fixedly connected to one end of the outer wall of the square rod (312); a cross plate (33) is fixedly connected to one end of the outer wall of the square rod (312); one side of the outer wall of the cross plate (33) is slidably connected to a limiting rod (34); limiting grooves (35) are provided on opposite sides of the outer walls of a pair of the placing plates (6), and the pair of limiting grooves (35) are matched with the pair of limiting rods (34) respectively.

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