Positioning tool for hydraulic element production

Abstract

The invention relates to the technical field of hydraulic element machining, in particular to a positioning tool for hydraulic element production, which comprises a base plate, a support and a driving motor, is matched with a hydraulic cylinder barrel, a hydraulic cylinder bottom and an oil port for use, and further comprises a transmission assembly, a limiting assembly, an adjusting assembly, a connecting assembly, a clamping assembly and a sleeving assembly, the limiting assemblies are installed on the left side and the right side of the support, the transmission assembly is installed below the support, the adjusting assembly and the connecting assembly are installed on the rear portion and the front portion of the support respectively, the adjusting assembly and the connecting assembly are both installed on the transmission assembly, and the clamping assembly, the sleeving assembly and the driving motor are installed on the connecting assembly. And the hydraulic cylinder bottom is mounted on the inner side of the clamping assembly. By arranging the adjusting assembly and the connecting assembly, the stability of the positions of the hydraulic cylinder barrel and the oil port is guaranteed, and the accuracy of the overall angle between the hydraulic cylinder barrel and the hydraulic cylinder bottom is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic component processing, and specifically relates to a positioning tooling for hydraulic component production. Background Art

[0002] A complete hydraulic system mainly consists of a power component, an actuator, a control component, an auxiliary component, and a hydraulic medium. Among them, hydraulic components mainly refer to the actuators in the hydraulic system, such as hydraulic cylinders and hydraulic motors. Among them, hydraulic cylinders are more common. During the welding process of the cylinder barrel and the cylinder bottom of a hydraulic cylinder, a positioning tooling is generally used to perform coaxial positioning on the cylinder barrel and the cylinder bottom of the hydraulic cylinder.

[0003] Among them, in the motion control of the joints of some industrial robots, hydraulic cylinders are often used as driving devices. In order to pursue higher motion accuracy and repeat positioning accuracy in the joint drive of industrial robots, there are relatively high requirements for the angle between the oil port and the earring on the upper cylinder barrel of the hydraulic cylinder. However, in the positioning tooling used in the existing welding process of the cylinder barrel and the cylinder bottom of the hydraulic cylinder, most are used to maintain the stability of the cylinder barrel and the cylinder bottom and the coaxiality of the cylinder barrel and the cylinder bottom. Moreover, during the splicing installation and subsequent welding process, it is impossible to effectively guarantee the accuracy of the angle between the oil port and the earring of the hydraulic cylinder. For example, during the splicing installation process, when the cylinder barrel and the cylinder bottom are spliced and installed through the positioning tooling, because most are installed and spliced manually, there will be a deviation in the angle between the oil port and the earring. And the existing positioning tooling is relatively troublesome to adjust after being fixed. Moreover, during the welding process of the cylinder barrel and the cylinder bottom of the hydraulic cylinder, generally, the cylinder barrel or the cylinder bottom is driven by a driving mechanism, and during the welding process, synchronous driving is performed through the welding points. However, during the starting process, the cylinder barrel or the cylinder bottom may rotate out of sync, which will directly cause a deviation in the angle between the oil port and the earring on the upper cylinder barrel of the hydraulic cylinder, affecting the accuracy of the hydraulic cylinder.

[0004] Therefore, in order to ensure the accuracy of the angle between the oil port and the earring on the upper cylinder barrel of the hydraulic cylinder, a positioning tooling for hydraulic component production is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a positioning tooling for hydraulic component production, which solves the problem that the angle between the oil port and the earring of the hydraulic cylinder is prone to deviation during installation and welding. The angle during the installation of the hydraulic cylinder bottom and the hydraulic cylinder barrel is restricted and adjusted through an adjusting component and a clamping component. The connection component and the socket component can be used to synchronously drive the hydraulic cylinder barrel and the hydraulic cylinder bottom during welding, avoiding the situation that the hydraulic cylinder barrel and the hydraulic cylinder bottom are out of sync during welding, resulting in a deviation in the angle between the oil port and the earring of the hydraulic cylinder and affecting the accuracy of the hydraulic cylinder.

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

[0007] A positioning tooling for the production of hydraulic components, including a backing plate, a bracket and a driving motor, used in combination with a hydraulic cylinder barrel, a hydraulic cylinder bottom and an oil port, further including a transmission assembly, a limiting assembly, an adjusting assembly, a connecting assembly, a clamping assembly and a sleeving assembly. The bracket is installed on the top of the backing plate, and the limiting assembly is installed on the left and right sides of the bracket. The transmission assembly is installed below the bracket. The adjusting assembly and the connecting assembly are respectively installed behind and in front of the bracket, and both the adjusting assembly and the connecting assembly are installed on the transmission assembly. The clamping assembly, the sleeving assembly and the driving motor are installed on the connecting assembly, and the hydraulic cylinder bottom is installed inside the clamping assembly. After the hydraulic cylinder barrel is placed on the limiting assembly, it will press down the limiting assembly for fixation and drive the adjusting assembly and the connecting assembly through the transmission assembly to push the hydraulic cylinder bottom to adjust the position of the hydraulic cylinder barrel. The driving motor drives the hydraulic cylinder bottom and the hydraulic cylinder barrel to rotate for welding through the clamping assembly and the sleeving assembly. The direction towards which the earring on the hydraulic cylinder bottom faces is the front.

[0008] In the above solution, when there are requirements for the angle between the oil port and the earring, such as requiring the earring to be vertical and the middle cavity to face left and right, and requiring the oil port to be vertical, the hydraulic cylinder barrel and the hydraulic cylinder bottom can be adjusted by the present invention, which can effectively ensure the accuracy of the angle between the oil port and the earring, and avoid skewing during splicing and subsequent rotational welding. At the same time, the position of the oil port of the hydraulic cylinder barrel is adjusted by pressing down the hydraulic cylinder barrel, which facilitates subsequent driving of the hydraulic cylinder barrel and the hydraulic cylinder bottom to rotate, effectively improving the convenience of equipment use.

[0009] Preferably, the transmission assembly includes a toothed plate, a driving gear, a transmission belt, a driven gear and a limiting frame, the top of the toothed plate is fixed to the front and rear sides of the bottom of the bracket, the driving gear is located on the side of the toothed plate close to the center of the bracket, and the driving gear is meshed with the toothed plate, the limiting frame is fixedly installed on the front and rear sides of the top of the pad, the driven gear is located at a position near the middle of the top of the limiting frame, pulleys are installed on the left and right sides of the driving gear and the driven gear, and the transmission belt is installed on the pulleys on the left and right sides of the driving gear and the driven gear to rotationally connect the driving gear and the driven gear, the adjusting assembly includes a moving part 1 and an adjusting block, the moving part 1 is installed on the inner side of the limiting frame at the rear, and the moving part 1 is meshed with the driven gear at the rear, and the adjusting block is installed on the moving part 1 , and the moving part 1 is trumpet-shaped, the wide mouth of the moving part 1 faces the oil port, and the narrow mouth of the moving part 1 matches the diameter of the oil port, and the bottom of the adjusting block and the middle of the oil port are located at the same horizontal line, and after the adjusting block and the rear oil port are staggered, the sleeve ring will sleeve the front oil port, the connecting assembly includes a moving part 2, a connecting gear and a transmission shaft, the moving part 2 is installed on the inner side of the front limiting frame, and the moving part 2 is meshed with the front driven gear, the connecting part is slidably connected to the moving part 2, the driving motor is fixedly installed on the connecting part, the connecting gear bearing is connected to the connecting part, and the connecting part is located above the driving motor, the transmission shaft is transmission-connected to the output shaft of the driving motor, and a connecting block is fixedly installed on the side of the connecting gear close to the bottom of the hydraulic cylinder.

[0010] In the above scheme, the downward force of the hydraulic cylinder is used as the driving force, and the transmission component is used to conveniently drive the adjusting component and the connecting component to adjust the hydraulic cylinder and the hydraulic cylinder bottom, thereby improving the convenience of equipment use. After the transmission component drives the adjusting component to move, the position of the oil port can be conveniently adjusted to facilitate improving the accuracy. After the transmission component drives the connecting component, the hydraulic cylinder bottom can be driven to move to enable the hydraulic cylinder and the hydraulic cylinder bottom to be socketed. At the same time, the socket ring sockets the oil port, thereby facilitating synchronous driving of the hydraulic cylinder and the hydraulic cylinder bottom, thereby avoiding the situation where the hydraulic cylinder and the hydraulic cylinder bottom are offset during the driving welding process, which affects the accuracy of the angle between the earring and the oil port.

[0011] Preferably, the limiting assembly includes a first limiting wheel, a second limiting wheel, a connecting member, a connecting rod, a pressing plate, a third limiting wheel, a support rod, and a support spring. The first limiting wheel, the second limiting wheel, and the connecting rod are all installed on the bracket, and the second limiting wheel is located in front of the first limiting wheel. The first limiting wheel and the second limiting wheel are connected to the bracket by bearings. The connecting member is movably connected to the front of the bracket. The middle of the pressing plate is movably installed on the connecting rod. The third limiting wheel is installed on the top of the pressing plate. The bottom of the pressing plate is connected to the backing plate by a bearing. The support rod is connected to the middle of the bracket by a bearing. The support spring is sleeved on the outer surface of the support rod and is installed at the bottom of the bracket. The surface of the second limiting wheel is in contact with the socketing assembly. The surfaces of the first limiting wheel and the third limiting wheel are in contact with the outer surface of the hydraulic cylinder barrel.

[0012] In the above solution, it is convenient to effectively ensure the coaxiality between the hydraulic cylinder barrel and the hydraulic cylinder bottom, enabling the hydraulic cylinder barrel and the hydraulic cylinder bottom to move up and down synchronously. And the hydraulic cylinder barrel can be quickly limited by the limiting assembly, effectively restricting the movement of the hydraulic cylinder barrel. Through the first limiting wheel and the third limiting wheel, it is convenient to drive the hydraulic cylinder barrel to rotate during subsequent welding.

[0013] Preferably, the socketing assembly includes a connecting ring, a support plate, a bearing ring, a socketing ring, a mounting groove, and a hollow convex arc block. The connecting ring is installed on the support plate and is connected to the connecting gear by a bearing. The support plate is located above the second limiting wheel, and the second limiting wheel is in contact with the bottom surface of the support plate. The mounting groove is opened at a position on the support plate close to the connection between the hydraulic cylinder barrel and the hydraulic cylinder bottom. The bearing ring is installed behind the support plate. The socketing ring is installed outside the bearing ring, and the rear top of the socketing ring is movably socketed with the oil port. A tooth groove is opened on a part of the outer surface of the socketing ring close to the front. The hollow convex arc block is installed inside the mounting groove. A through hole is opened in the middle of the connecting ring. The connecting block is fixedly installed with the connecting plate through the through hole in the middle of the connecting ring. The connecting plate is connected to the connecting ring by a bearing. The middle of the clamping block is in contact with both sides of the hydraulic cylinder bottom. The clamping assembly includes a connecting plate and a clamping block. The connecting plate is installed inside the support plate, and the clamping block is installed behind the connecting plate. The front and rear ends of the transmission shaft are respectively engaged with the connecting gear and the socketing ring. The diameter of the connecting gear is the same as the diameter of the socketing ring. The middle of the hollow convex arc block is in an arc-shaped convex state, and the hollow convex arc block is in a hollow state. Both the left and right ends of the hollow convex arc block are in an inclined shape, and the inclination angle of the hollow convex arc block is 60 degrees. The convex part above the hollow convex arc block is higher than the depth of the mounting groove.

[0014] In the above scheme, it is convenient to synchronously drive the hydraulic cylinder barrel and the hydraulic cylinder bottom through the driving motor to avoid the offset between the hydraulic cylinder barrel and the hydraulic cylinder bottom. The position of the earring on the hydraulic cylinder bottom can be conveniently limited to avoid the offset of the hydraulic cylinder bottom during installation and subsequent processes. At the same time, the hollow convex arc block can limit the position of the hydraulic cylinder bottom when it is installed on the hydraulic cylinder bottom. When the hydraulic cylinder bottom is placed on the pallet, if the hydraulic cylinder bottom is tilted, it means that the hydraulic cylinder bottom is not installed in place. The hydraulic cylinder bottom can be pushed forward so that the hydraulic cylinder bottom is restricted by the hollow convex arc block. After the hydraulic cylinder bottom and the hydraulic cylinder barrel are socketed, the hollow convex arc block will leave a gap between the hydraulic cylinder barrel and the hydraulic cylinder bottom, so that after the hydraulic cylinder barrel and the hydraulic cylinder bottom are welded, a certain space is provided at the weld between the hydraulic cylinder barrel and the hydraulic cylinder bottom to facilitate the expansion of the hydraulic cylinder barrel and the hydraulic cylinder bottom under the high temperature during welding, thereby avoiding squeezing of the two.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention drives the adjusting component and the connecting component to move through the transmission component by pressing down the hydraulic cylinder, and the adjusting component adjusts the position of the oil port on the hydraulic cylinder, which is beneficial to ensure the accuracy of the angle between the earring on the bottom of the hydraulic cylinder and the oil port. The connecting component limits the bottom of the hydraulic cylinder through the clamping component, and the sleeve component sleeves the hydraulic cylinder and the oil port, which is convenient for synchronous driving by the driving motor during welding, avoiding the hydraulic cylinder and the hydraulic cylinder bottom from rotating asynchronously during welding, resulting in an angle deviation between the earring on the bottom of the hydraulic cylinder and the oil port, affecting the accuracy of hydraulic cylinder production.

[0017] 2. The present invention sets a transmission assembly, an adjustment assembly and a connecting assembly. When the hydraulic cylinder is pressed down by its own weight, the adjustment assembly is driven forward by the transmission assembly, and the adjustment block pushes the oil port, so that the oil port on the hydraulic cylinder is adjusted to a vertically upward state, thereby ensuring the accuracy of the angle between the oil port and the earring on the bottom of the hydraulic cylinder. At the same time, the hydraulic cylinder will also drive the connecting assembly forward through the transmission assembly, and the clamping assembly and the sleeve assembly connected to the connecting assembly are both mounted on a bracket to ensure the coaxiality of the hydraulic cylinder and the bottom of the hydraulic cylinder. At the same time, the forward movement of the sleeve assembly causes the sleeve ring to be sleeved on the hydraulic cylinder. When the adjustment block is staggered with the rear oil port, the sleeve ring is adjusted with the front oil port to ensure the stability of the position of the hydraulic cylinder and the oil port, which is beneficial to ensuring the accuracy of the overall angle between the hydraulic cylinder and the bottom of the hydraulic cylinder.

[0018] 3. By providing a connection component and a socket component, when the drive motor drives the transmission shaft, the transmission shaft can synchronously drive the connecting gear and the socket ring. The connecting gear is connected to the clamping component, and the bottom of the hydraulic cylinder is clamped on the clamping component. The socket ring is sleeved on the cylinder barrel of the hydraulic cylinder and is clamped with the oil port, which helps to avoid the situation that the cylinder barrel of the hydraulic cylinder and the bottom of the hydraulic cylinder rotate out of sync during welding, resulting in a deviation in the angle between the two. And through the hollow convex arc block, there is sufficient space between the cylinder barrel of the hydraulic cylinder and the bottom of the hydraulic cylinder during welding, avoiding the situation of extrusion damage when the cylinder barrel of the hydraulic cylinder and the bottom of the hydraulic cylinder expand and contract due to high temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present invention;

[0020] Figure 2 is a schematic structural diagram of the limit component of the present invention;

[0021] Figure 3 is a schematic structural diagram of the transmission component of the present invention;

[0022] Figure 4 is a schematic structural diagram of the connection component of the present invention;

[0023] Figure 5 is a schematic structural diagram of the adjustment component of the present invention;

[0024] Figure 6 is a schematic diagram of the placement of the bottom of the hydraulic cylinder of the present invention;

[0025] Figure 7 is a schematic structural diagram of the clamping component of the present invention;

[0026] Figure 8 is a schematic structural diagram of the socket component of the present invention;

[0027] Figure 9 is a schematic structural diagram of the hollow convex arc block of the present invention.

[0028] In the figure: 1, backing plate; 2, support; 3, transmission assembly; 301, toothed plate; 302, driving gear; 303, transmission belt; 304, driven gear; 305, limiting frame; 4, limiting assembly; 401, limiting wheel I; 402, limiting wheel II; 403, connecting piece; 404, connecting rod; 405, pressing plate; 406, limiting wheel III; 407, support rod; 408, support spring; 5, hydraulic cylinder barrel; 6, hydraulic cylinder bottom; 7, adjusting assembly; 701, moving part I; 702, adjusting block; 8, connecting assembly; 801, moving part II; 802, connecting gear; 803, transmission shaft; 9, oil port; 10, clamping assembly; 1001, connecting plate; 1002, clamping block; 11, sleeving assembly; 1101, connecting ring; 1102, supporting plate; 1103, bearing ring; 1104, sleeving ring; 1105, mounting groove; 1106, hollow convex arc block; 12, connecting block; 13, driving motor. Specific embodiments

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, other embodiments obtained by those of ordinary skill in the art without creative efforts are within the protection scope of the present invention.

[0030] Please refer to Figures 1 to 9 , the present invention provides a positioning tool for the production of hydraulic components, and the technical solutions are as follows:

[0031] A positioning tool for the production of hydraulic components, including a backing plate 1, a support 2 and a driving motor 13, used in combination with a hydraulic cylinder barrel 5, a hydraulic cylinder bottom 6 and an oil port 9, further including a transmission assembly 3, a limiting assembly 4, an adjusting assembly 7, a connecting assembly 8, a clamping assembly 10 and a sleeving assembly 11. In the transmission assembly 3, it includes a toothed plate 301, a driving gear 302, a transmission belt 303, a driven gear 304 and a limiting frame 305. In the limiting assembly 4, it includes a limiting wheel I 401, a limiting wheel II 402, a connecting piece 403, a connecting rod 404, a pressing plate 405, a limiting wheel III 406, a support rod 407 and a support spring 408. In the adjusting assembly 7, it includes a moving part I 701 and an adjusting block 702. In the connecting assembly 8, it includes a moving part II 801, a connecting gear 802 and a transmission shaft 803. In the clamping assembly 10, it includes a connecting plate 1001 and a clamping block 1002. In the sleeving assembly 11, it includes a connecting ring 1101, a supporting plate 1102, a bearing ring 1103, a sleeving ring 1104, a mounting groove 1105 and a hollow convex arc block 1106.

[0032] As an implementation manner of the present invention, refer to Figure 1 and Figure 2, the bracket 2 is installed on the top of the backing plate 1, the limiting component 4 is installed on the left and right sides of the bracket 2, the transmission component 3 is installed below the bracket 2, the adjusting component 7 and the connecting component 8 are respectively installed behind and in front of the bracket 2, and both the adjusting component 7 and the connecting component 8 are installed on the transmission component 3. The clamping component 10, the sleeving component 11 and the driving motor 13 are installed on the connecting component 8, and the bottom of the hydraulic cylinder 6 is installed inside the clamping component 10. After the hydraulic cylinder barrel 5 is placed on the limiting component 4, it will press down the limiting component 4 for fixation and drive the adjusting component 7 and the connecting component 8 through the transmission component 3 to push the bottom of the hydraulic cylinder 6 to adjust the position of the hydraulic cylinder barrel 5. And the driving motor 13 drives the bottom of the hydraulic cylinder 6 and the hydraulic cylinder barrel 5 to rotate for welding through the clamping component 10 and the sleeving component 11. After the bottom of the hydraulic cylinder 6 is placed into the clamping component 10, the weight of the hydraulic cylinder barrel 5 presses down the bracket 2, driving the transmission component 3, and through the transmission component 3, the adjusting component 7 and the connecting component 8 are driven. The adjusting component 7 adjusts the position of the oil port 9 on the hydraulic cylinder barrel 5 to ensure that the angle of the oil port 9 is adapted to the earring on the bottom of the hydraulic cylinder 6. The connecting component 8 adjusts the position of the bottom of the hydraulic cylinder 6 and the sleeving component 11 so that the bottom of the hydraulic cylinder 6 and the sleeving component 11 are sleeved with the hydraulic cylinder barrel 5. The sleeving of the hydraulic cylinder barrel 5 and the bottom of the hydraulic cylinder 6 is convenient for welding. The sleeving component 11 is sleeved with the hydraulic cylinder barrel 5 and is clamped with the oil port 9 through the sleeving ring 1104, which is convenient for driving the hydraulic cylinder barrel 5 and the bottom of the hydraulic cylinder 6 to rotate synchronously, ensuring that the hydraulic cylinder barrel 5 and the bottom of the hydraulic cylinder 6 will not be misaligned during welding.

[0033] As an implementation manner of the present invention, refer to Figures 3 to 5The top of the toothed plate 301 is fixed to the front and rear sides of the bottom of the bracket 2, the driving gear 302 is located on the side of the toothed plate 301 close to the center of the bracket 2, and the driving gear 302 is meshed with the toothed plate 301, the limiting frame 305 is fixedly installed on the front and rear sides of the top of the pad 1, and the driven gear 304 is located at the top of the limiting frame 305 near the middle. The driving gear 302 and the driven gear 304 are both equipped with pulleys on the left and right sides, and the transmission belt 303 is installed on the pulleys on the left and right sides of the driving gear 302 and the driven gear 304 to control the driving gear 302 and the driven gear 304. The gear 302 is rotatably connected with the driven gear 304, the moving member 701 is installed on the inner side of the rear limiting frame 305, and the moving member 701 is meshed with the rear driven gear 304, the adjusting block 702 is installed on the moving member 701, and the moving member 701 is trumpet-shaped, the wide mouth of the moving member 701 faces the oil port 9, and the narrow mouth of the moving member 701 matches the diameter of the oil port 9, and the bottom of the adjusting block 702 and the middle of the oil port 9 are located on the same horizontal line, and after the adjusting block 702 is staggered with the rear oil port 9, the sleeve The connecting ring 1104 is connected to the front oil port 9, the moving part 801 is installed on the inner side of the front limiting frame 305, and the moving part 801 is meshed with the front driven gear 304, the connecting part 403 is slidably connected to the moving part 801, the driving motor 13 is fixedly installed on the connecting part 403, the connecting gear 802 is connected to the connecting part 403 by a bearing, and the connecting part 403 is located above the driving motor 13, the transmission shaft 803 is installed with the output shaft of the driving motor 13, and the connecting gear 802 is close to the bottom 6 of the hydraulic cylinder. A connecting block 12 is fixedly installed on the side, and the connecting gear 802 and the sleeve ring 1104 are both meshed with the transmission shaft 803, and the connecting gear 802 and the sleeve ring 1104 are both mounted on the transmission shaft 803. The connecting gear 802 and the sleeve ring 1104 have the same diameter to ensure a consistent transmission ratio, so that the hydraulic cylinder barrel 5 and the hydraulic cylinder bottom 6 can rotate synchronously to ensure the meshing of the connecting gear 802 and the sleeve ring 1104 with the transmission shaft 803. At the same time, the middle part of the transmission shaft 803 is sleeved in the sleeve block on the top of the bracket 2 to ensure the stability of the transmission shaft 803.

[0034] As an embodiment of the present invention, refer to Figure 2, the limiting wheel 1 (401), the limiting wheel 2 (402) and the connecting rod (404) are all installed on the bracket (2), and the limiting wheel 2 (402) is located in front of the limiting wheel 1 (401). The limiting wheel 1 (401) and the limiting wheel 2 (402) are connected to the bracket (2) by bearings. The connecting piece (403) is movably connected to the front of the bracket (2). The middle part of the pressing plate (405) is movably installed on the connecting rod (404). The limiting wheel 3 (406) is installed on the top of the pressing plate (405). The bottom of the pressing plate (405) is installed on the backing plate (1). The support rod (407) is connected to the middle of the bracket (2) by a bearing. The support spring (408) is sleeved on the outer surface of the support rod (407), and the support spring (408) is installed at the bottom of the bracket (2). The surface of the limiting wheel 2 (402) is in contact with the socket assembly (11). The surfaces of the limiting wheel 1 (401) and the limiting wheel 3 (406) are in contact with the outer surface of the hydraulic cylinder barrel (5). The limiting wheel 1 (401) and the limiting wheel 3 (406) on the limiting component (4) are both in contact with the hydraulic cylinder barrel (5). While limiting the hydraulic cylinder barrel (5), it also enables the hydraulic cylinder barrel (5) to rotate smoothly during welding, avoiding the situation in the conventional positioning component where it is inconvenient for the hydraulic cylinder barrel (5) to rotate after being fixedly positioned. At the same time, by adopting the clamping method of the limiting component (4), compared with the traditional positioning component, the clamping and positioning speed is fast. And compared with the traditional positioning component, when using the clamping and fixing method, if it is too tight, it may cause the outer shape of the hydraulic cylinder barrel (5) to be extruded and deformed, but if it is too loose, it may cause the hydraulic cylinder barrel (5) to be unstable during welding. The synchronous rotation welding of the hydraulic cylinder barrel (5) and the hydraulic cylinder bottom (6) of the present invention, compared with the existing method of first welding at one point and then driving the hydraulic cylinder barrel (5) to rotate for continuous welding, results in poor continuity between the weld seams of the initial welding and the subsequent welding, and is prone to welding pores. And directly driving the hydraulic cylinder barrel (5) to rotate during welding may cause angular deviation between the hydraulic cylinder barrel (5) and the hydraulic cylinder bottom (6) out of sync. By this method of synchronous driving rotation for welding, the continuity of the weld seam is improved, and the stability of the angle between the hydraulic cylinder barrel (5) and the hydraulic cylinder bottom (6) is also ensured.

[0035] As an implementation manner of the present invention, referring to Figures 6 to 9, the connecting ring 1101 is installed on the pallet 1102 and is connected to the connecting gear 802 by bearings. The clamping block 1002 limits the bottom 6 of the hydraulic cylinder. The pallet 1102 is located above the second limiting wheel 402, and the second limiting wheel 402 is in contact with the bottom surface of the pallet 1102. The installation groove 1105 is opened at the position of the pallet 1102 near the connection between the hydraulic cylinder barrel 5 and the bottom 6 of the hydraulic cylinder. The bearing ring 1103 is installed behind the pallet 1102. The socket ring 1104 is installed on the outside of the bearing ring 1103, and the top of the rear side of the socket ring 1104 is movably sleeved with the oil port 9. A tooth groove is opened in the front part of the outer surface of the socket ring 1104. The hollow convex arc block 1106 is installed inside the installation groove 1105. A through hole is opened in the middle of the connecting ring 1101. The connecting block 12 is fixedly installed with the connecting plate 1001 through the through hole in the middle of the connecting ring 1101. The connecting plate 1001 is connected to the connecting ring 1101 by bearings. The middle of the clamping block 1002 is in contact with both sides of the bottom 6 of the hydraulic cylinder. The connecting plate 1001 is installed inside the pallet 1102, and the clamping block 1002 is installed behind the connecting plate 1001. The front and rear ends of the transmission shaft 803 are respectively meshed with the connecting gear 802 and the socket ring 1104. The diameter of the connecting gear 802 is the same as the diameter of the socket ring 1104. The middle of the hollow convex arc block 1106 is convex in an arc shape, and the hollow convex arc block 1106 is in a hollow state. Both the left and right ends of the hollow convex arc block 1106 are inclined, and the inclination angle of the hollow convex arc block 1106 is 60 degrees. The convex part above the hollow convex arc block 1106 is higher than the depth of the installation groove 1105. After the hydraulic cylinder barrel 5 is completely pressed down and the bottom 6 of the hydraulic cylinder is sleeved with the hydraulic cylinder barrel 5, the hollow convex arc block 1106 will leave a gap between the hydraulic cylinder barrel 5 and the bottom 6 of the hydraulic cylinder, which is convenient for the later situation of thermal expansion and contraction of the hydraulic cylinder barrel 5 and the bottom 6 of the hydraulic cylinder due to high temperature during welding. Moreover, the middle of the hollow convex arc block 1106 is hollow and can deform under pressure. Both ends of the hollow convex arc block 1106 are inclined, and at the same time, both ends use rounded corners to prevent the weld between the hydraulic cylinder barrel 5 and the bottom 6 of the hydraulic cylinder from getting stuck when rotating through the hollow convex arc block 1106.

[0036] Working principle: Place the hydraulic cylinder bottom 6 on the clamping block 1002, and then place the hydraulic cylinder barrel 5 on the bracket 2, press down the hydraulic cylinder barrel 5 and fix it through the limit assembly 4, and then drive the adjustment assembly 7 forward through the transmission assembly 3 to adjust the position of the oil port 9 to ensure that the oil port 9 is vertically upward. At the same time, the transmission assembly 3 will drive the connecting assembly 8, and the connecting assembly 8 will drive the hydraulic cylinder bottom 6 and the sleeve assembly 11 to move backward, so that the hydraulic cylinder bottom 6 completes the sleeve connection with the hydraulic cylinder barrel 5, and at the same time the sleeve ring 1104 is clamped with the oil port 9, and finally the hydraulic cylinder barrel 5 and the hydraulic cylinder bottom 6 are driven by the driving motor 13 to rotate synchronously, and are welded with an automatic welding machine to ensure the accuracy between the hydraulic cylinder barrel 5 and the hydraulic cylinder bottom 6.

[0037] Specifically, when the hydraulic cylinder 5 and the hydraulic cylinder bottom 6 are fixedly positioned, the hydraulic cylinder bottom 6 can be placed in the groove formed by the clamping block 1002 and the support plate 1102, and the position of the hydraulic cylinder bottom 6 can be limited by the protrusion of the hollow convex arc block 1106, and then the hydraulic cylinder 5 is placed on the bracket 2 with the oil port 9 facing upward, and supported by the limiting wheel 1 401, and the bracket 2 is pressed down by the deadweight of the hydraulic cylinder 5, so that the supporting spring 408 is deformed, and the bracket 2 moves downward. When the bracket 2 moves downward, it pulls the connecting rod 404, and pulls the pressure plate 405 through the connecting rod 404, so that the pressure plate 405 drives the limiting wheel 3 406 to press the hydraulic cylinder 5.

[0038] At the same time, the weight of the hydraulic cylinder 5 presses down the bracket 2, and the bracket 2 drives the tooth plate 301 to move downward, drives the driving gear 302 to rotate, and cooperates with the transmission belt 303, so that the driving gear 302 drives the driven gear 304, and drives the moving part 1 701 to move forward and the moving part 2 801 to move backward through the driven gear 304, wherein the moving part 1 701 moves forward, so that the adjustment block 702 adjusts the position of the oil port 9 on the hydraulic cylinder 5, so that the oil port 9 is vertically upward, ensuring the accuracy of the angle between the oil port 9 and the hydraulic cylinder bottom 6, wherein the moving part 2 801 moves backward, driving the clamping assembly 10 and The socket assembly 11 moves backward, and the clamping assembly 10 drives the hydraulic cylinder bottom 6 to move backward, so that the hydraulic cylinder bottom 6 and the hydraulic cylinder barrel 5 are socketed. The socket assembly 11 moves backward, and the hydraulic cylinder barrel 5 is socketed through the socket ring 1104. After the adjusting block 702 adjusts the rear oil port 9 and is offset from the oil port 9, the socket ring 1104 is socketed with the front oil port 9 to ensure that the oil port 9 on the hydraulic cylinder barrel 5 is always in a vertically upward state, ensuring the accuracy of the angle between the oil port 9 and the hydraulic cylinder bottom 6. At the same time, the hollow convex arc block 1106 will leave a certain gap between the hydraulic cylinder barrel 5 and the hydraulic cylinder bottom 6.

[0039] Then, drive the transmission shaft 803 through the drive motor 13. The transmission shaft 803 drives the connecting gear 802 and the bearing ring 1103. The connecting gear 802 drives the connecting block 12, and the connecting block 12 drives the connecting plate 1001. The connecting plate 1001 drives the bottom 6 of the hydraulic cylinder to rotate through the clamping block 1002. At the same time, the socket ring 1104 is sleeved on the oil port 9 on the hydraulic cylinder barrel 5, and the first moving part 701 abuts against the rear end of the hydraulic cylinder barrel 5 to drive the hydraulic cylinder barrel 5 and the bottom 6 of the hydraulic cylinder to rotate synchronously through the bearing ring 1103. Then, cooperate with an automatic welding machine to weld the position 30 degrees to the left of the middle of the connection between the hydraulic cylinder barrel 5 and the bottom 6 of the hydraulic cylinder. The hollow convex arc block 1106 leaves a gap between the hydraulic cylinder barrel 5 and the bottom 6 of the hydraulic cylinder, which can avoid the situation that the high temperature during welding causes thermal expansion and contraction between the hydraulic cylinder barrel 5 and the bottom 6 of the hydraulic cylinder, resulting in extrusion and damage between the hydraulic cylinder barrel 5 and the bottom 6 of the hydraulic cylinder. When taking out the welded hydraulic cylinder barrel 5 and the bottom 6 of the hydraulic cylinder, the hydraulic cylinder barrel 5 can be lifted upward. When the bottom 6 of the hydraulic cylinder abuts against the socket ring 1104, the hydraulic cylinder barrel 5 and the bottom 6 of the hydraulic cylinder can be pulled out backward.

[0040] Although the embodiments of the present invention have been described, for those of ordinary skill in the art, various variations and modifications can be made to these embodiments without departing from the principle and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning tool for hydraulic component production, comprising a backing plate (1), a bracket (2) and a drive motor (13), used in conjunction with a hydraulic cylinder (5), a hydraulic cylinder bottom (6) and an oil port (9), characterized in that: The bracket (2) further comprises a transmission assembly (3), a limit assembly (4), an adjustment assembly (7), a connection assembly (8), a clamping assembly (10) and a sleeve assembly (11); the bracket (2) is mounted on the top of the backing plate (1); the limit assembly (4) is mounted on the left and right sides of the bracket (2); the transmission assembly (3) is mounted below the bracket (2); the adjustment assembly (7) and the connection assembly (8) are respectively mounted on the rear and front of the bracket (2); and the adjustment assembly (7) and the connection assembly (8) are both mounted on the transmission assembly (3); the clamping assembly (10), the sleeve assembly (11) and the sleeve assembly (12) are mounted on the backing plate (1); The connection assembly (11) and the drive motor (13) are mounted on the connection assembly (8), and the hydraulic cylinder bottom (6) is mounted on the inner side of the clamping assembly (10). After the hydraulic cylinder barrel (5) is placed on the limit assembly (4), the limit assembly (4) is pressed downward to fix it, and the adjustment assembly (7) and the connection assembly (8) are driven by the transmission assembly (3) to push the hydraulic cylinder bottom (6) to adjust the position of the hydraulic cylinder barrel (5), and the drive motor (13) drives the hydraulic cylinder bottom (6) and the hydraulic cylinder barrel (5) to rotate and weld through the clamping assembly (10) and the sleeve assembly (11).

2. A positioning tool for hydraulic component production according to claim 1, characterized in that: The transmission assembly (3) comprises a toothed plate (301), a driving gear (302), a transmission belt (303), a driven gear (304) and a limiting frame (305); the top of the toothed plate (301) is fixed to the front and rear sides of the bottom of the bracket (2); the driving gear (302) is located on a side of the toothed plate (301) close to the center of the bracket (2), and the driving gear (302) is meshed with the toothed plate (301); the limiting frame (305) is installed on the front and rear sides of the top of the pad (1); the driven gear (304) is located at a position close to the middle of the top of the limiting frame (305); pulleys are installed on the left and right sides of the driving gear (302) and the driven gear (304), and the transmission belt (303) is installed on the pulleys on the left and right sides of the driving gear (302) and the driven gear (304).

3. The positioning tool for hydraulic component production according to claim 1, characterized in that: The limiting assembly (4) comprises a limiting wheel 1 (401), a limiting wheel 2 (402), a connecting piece (403), a connecting rod (404), a pressure plate (405), a limiting wheel 3 (406), a support rod (407) and a support spring (408); the limiting wheel 1 (401), the limiting wheel 2 (402) and the connecting rod (404) are all mounted on the bracket (2), and the limiting wheel 2 (402) is located in front of the limiting wheel 1 (401); the connecting piece (403) is mounted in front of the bracket (2); the middle part of the pressure plate (405) is connected to the connecting rod (407); 4) for movable installation, the limiting wheel three (406) is installed on the top of the pressure plate (405), the bottom of the pressure plate (405) is installed on the pad (1), the support rod (407) is installed in the middle of the bracket (2), the support spring (408) is installed on the outer surface of the support rod (407), and the support spring (408) is installed on the bottom of the bracket (2), the surface of the limiting wheel two (402) is in contact with the socket assembly (11), and the surfaces of the limiting wheel one (401) and the limiting wheel three (406) are in contact with the outer surface of the hydraulic cylinder (5).

4. The positioning tool for hydraulic component production according to claim 1, characterized in that: The adjustment assembly (7) comprises a moving part (701) and an adjustment block (702); the moving part (701) is mounted on the inner side of a rear limiting frame (305), and the moving part (701) is meshed with a rear driven gear (304); and the adjustment block (702) is mounted on the moving part (701).

5. The positioning tool for hydraulic component production according to claim 3, characterized in that: The connecting assembly (8) comprises a second moving part (801), a connecting gear (802) and a transmission shaft (803); the second moving part (801) is mounted on the inner side of a front limiting frame (305), and the second moving part (801) is meshed with a front driven gear (304); the connecting part (403) is slidably connected to the second moving part (801); the driving motor (13) is mounted on the connecting part (403); the connecting gear (802) is mounted on the connecting part (403), and the connecting part (403) is located above the driving motor (13); the transmission shaft (803) is mounted on the output shaft of the driving motor (13); and a connecting block (12) is mounted on the side of the connecting gear (802) close to the bottom (6) of the hydraulic cylinder.

6. A positioning tool for hydraulic component production according to claim 5, characterized in that: The sleeve assembly (11) comprises a connecting ring (1101), a support plate (1102), a bearing ring (1103), a sleeve ring (1104), a mounting groove (1105) and a hollow convex arc block (1106); the connecting ring (1101) is mounted on the support plate (1102) and is bearing-connected to the connecting gear (802); the support plate (1102) is located above the limiting wheel 2 (402), and the limiting wheel 2 (402) and the bottom of the support plate (1102) are connected. The surfaces are in contact with each other, the mounting groove (1105) is opened at a position of the support plate (1102) close to the connection between the hydraulic cylinder barrel (5) and the hydraulic cylinder bottom (6), the bearing ring (1103) is installed at the rear of the support plate (1102), the sleeve ring (1104) is installed on the outside of the bearing ring (1103), and the rear top of the sleeve ring (1104) is movably sleeved with the oil port (9), and the hollow convex arc block (1106) is installed inside the mounting groove (1105).

7. A positioning tool for hydraulic component production according to claim 6, characterized in that: The clamping assembly (10) comprises a connecting plate (1001) and a clamping block (1002); the connecting plate (1001) is installed on the inner side of the supporting plate (1102), and the clamping block (1002) is installed behind the connecting plate (1001).

8. A positioning tool for hydraulic component production according to claim 7, characterized in that: A through hole is provided in the middle of the connecting ring (1101), the connecting block (12) is fixedly mounted on the connecting plate (1001) through the through hole in the middle of the connecting ring (1101), the connecting plate (1001) and the connecting ring (1101) are bearing-connected, and the middle of the clamping block (1002) fits with both sides of the hydraulic cylinder bottom (6).

9. The positioning tool for hydraulic component production according to claim 5, characterized in that: The front and rear ends of the transmission shaft (803) are respectively meshed with the connecting gear (802) and the sleeve ring (1104), and the diameter of the connecting gear (802) is consistent with the diameter of the sleeve ring (1104).

10. The positioning tool for hydraulic component production according to claim 6, characterized in that: The middle part of the hollow convex arc block (1106) is in an arc-shaped convex shape, and the hollow convex arc block (1106) is in a hollow state.

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