A hydraulic tooling system for machining electromechanical equipment parts

Abstract

The present invention discloses a hydraulic tooling system for machining parts of electromechanical equipment, comprising a base, a robotic arm, and a housing. An inner clamping plate is provided on the upper surface of the base on the inner side of the robotic arm, a top plate is connected above the inner clamping plate, outer clamping plates are provided on the upper surface of the base on both sides of the robotic arm, an outward push mechanism is installed in the middle of the side of the outer clamping plate away from the robotic arm, and inner pull mechanisms are installed on all four edges of the side of the outer clamping plate away from the robotic arm. By providing the inner clamping plate, the top plate, and the inner clamping piston cylinder, the present invention can achieve hydraulic automatic stable clamping of the robotic arm; by providing the outer clamping plate, the outward push mechanism, and the inner pull mechanism, the tooling can be used for both clamping the robotic arm and clamping the housing, and can simultaneously perform matching clamping and positioning of the robotic arm and the two housings, facilitating matching drilling processing of the robotic arm and the two housings.

Description

Technical Field

[0001] The present invention relates to the technical field of electromechanical equipment parts processing, and in particular to a hydraulic tooling system for electromechanical equipment parts processing. Background Art

[0002] Electromechanical equipment generally refers to machinery, electrical appliances and electrical automation equipment. Electromechanical equipment can be divided into three categories according to its use: industrial electromechanical equipment, information electromechanical equipment and people's livelihood electromechanical equipment. Among them, industrial robots are the most widely used and representative electromechanical equipment in industrial electromechanical equipment. Industrial robots have multi-joint manipulators that can achieve multi-degree-of-freedom activities. The main parts supporting their activities are robotic arms. In order to achieve multi-degree-of-freedom activities, the current robotic arms are equipped with driving parts inside their joints and covered with outer shells on both sides for assembly. The outer shell and the joints of the robotic arm are installed with bolts. Therefore, after the casting of the robotic arm is completed, drilling is required on both sides of the robotic arm joint and the outer shell.

[0003] The current drilling process of the industrial robot arm requires the use of a tooling fixture for clamping. However, the tooling fixture currently used can only clamp either the robot arm or the shell. It is not suitable for both the robot arm and the shell, nor can it clamp both at the same time. The robot arm and the shell are designed separately, so the robot arm and the shell can only be drilled in batches. Batch processing has the problem of inaccurate correspondence between the drilling positions on the shell and the robot arm, and difficulty in bolt connection. Summary of the Invention

[0004] The purpose of the present invention is to provide a hydraulic tooling system for machining parts of electromechanical equipment to solve the problems raised in the above-mentioned background technology.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] A hydraulic tooling system for processing parts of electromechanical equipment includes a base, a robotic arm and an outer shell, the upper surface of the base is provided with an inner splint on the inner side of the robotic arm, a top plate is connected to the inner splint, the upper surface of the base is provided with outer splints on both sides of the robotic arm, an outward pushing mechanism is installed in the middle of the side of the outer splint away from the robotic arm, and an inner pulling mechanism is installed on all four edges of the side of the outer splint away from the robotic arm, a slide is provided on the upper surface of the base below the robotic arm, a hydraulic pump is installed on one side of the base, one end of the hydraulic pump is connected to an oil tank, a first oil return pipe is connected between the outward pushing mechanism and the inner pulling mechanism, a second oil return pipe is connected to the oil tank, and a second oil supply pipe is connected between the oil inlet of the hydraulic pump and the oil tank.

[0007] Preferably, a first oil inlet pipe is connected between the outward pushing mechanism and the oil outlet of the hydraulic pump, a second oil inlet pipe is connected between the inward pulling mechanism and the oil inlet of the hydraulic pump, and the oil outlet of the hydraulic pump is also connected to a first oil supply pipe, and a one-way valve is installed on the first return oil pipe, the first oil inlet pipe, the second oil inlet pipe, the first oil supply pipe, the second oil return pipe and the second oil supply pipe.

[0008] Preferably, a slider is connected to the bottom of the inner clamping plate, an inner clamping piston cylinder is installed inside the base, inner clamping piston rods are provided at both ends of the inner clamping piston cylinder, a screw is connected to the center of the top of the inner clamping plate, a spring is provided on the outside of the screw, there are two inner clamping plates, which are symmetrically arranged on the upper surface of the base, and the sides of the two inner clamping plates away from each other are in contact with the inner walls on both sides of the robotic arm.

[0009] Preferably, there are two inner clamp piston rods, which are respectively installed at the two ends of the inner cavity of the inner clamp piston cylinder. The oil inlet of the inner clamp piston cylinder is connected to the oil outlet of the hydraulic pump through the first oil supply pipe, and the oil outlet of the inner clamp piston cylinder is connected to the oil tank through the second oil return pipe.

[0010] Preferably, a through hole is opened through the middle of the top plate, rubber pads are installed on the bottom of both sides of the top plate, nuts are provided above the top plate corresponding to the position of the through hole, the rubber pad is in the shape of an arc strip, and the bottom of the top plate contacts the upper surface of the robotic arm through the rubber pad.

[0011] Preferably, the slider is integrally connected to the inner clamping plate, the cross-section of the slider is L-shaped, the slider is clamped inside the slide groove to form a sliding connection, the side wall of the slider is connected to the inner clamping piston rod, the outer diameter of the screw is adapted to the inner diameter of the through hole, the screw passes through the top plate through the through hole, and the top of the screw is threadedly connected to the nut.

[0012] Preferably, a dust suction groove is opened inside the outer splint, a perforated plate is installed on the outer side wall of the dust suction groove, a filter is installed on the side of the dust suction groove close to the middle of the outer splint, and an air suction pipe is installed on the side of the filter close to the middle of the outer splint, the end of the air suction pipe away from the outer splint is connected to a vacuum pump, the air outlet of the vacuum pump is connected to an air outlet pipe, the tail end of the air outlet pipe is connected to an air outlet nozzle, and the air outlet nozzle is connected to a mounting plate, there are two outer splints, which are symmetrically arranged relative to the robotic arm, and the outer splint is cross-shaped. The outer splint is between the robotic arm and the outer shell, and the bottom of the outer splint is fixedly connected to the base.

[0013] Preferably, there are two dust suction grooves, both of which are connected to the air inlet of the vacuum pump through the filter screen and the air suction pipe, and the air outlet pipe is installed on one side of the drill bit through the mounting plate.

[0014] Preferably, the inner pulling mechanism includes an inner pulling piston cylinder, an inner pulling piston rod is arranged inside the inner pulling piston cylinder, and the end of the inner pulling piston rod close to the outer shell is connected to a pulling block, the pulling block is L-shaped, and the pulling block is connected to the end of the inner pulling piston rod close to the outer shell, and the pulling block is clamped on the outer edge of the outer shell. There are four inner pulling mechanisms, which are distributed on the four edges of the outer splint close to the outer shell. The oil inlets of the four inner pulling piston cylinders are connected to the first return oil pipe, and the oil outlets of the four inner pulling piston cylinders are connected to the second oil inlet pipe.

[0015] Preferably, the outward pushing mechanism includes an outward pushing piston cylinder, an outward pushing piston rod is arranged inside the outward pushing piston cylinder, and a rubber block is connected to the end of the outward pushing piston rod close to the outer shell, and the rubber block is in contact with the central depression of the inner wall of the outer shell. The oil outlet of the outward pushing piston cylinder is connected to the oil inlet of the four inner pulling piston cylinders through the first oil return pipe, and the oil inlet of the outward pushing piston cylinder is connected to the oil outlet of the hydraulic pump.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The hydraulic tooling system for machining parts of electromechanical equipment is provided with an inner clamping plate, a top plate and an inner clamping piston cylinder. Hydraulic oil is introduced into the inner clamping piston cylinder through a hydraulic pump. The hydraulic oil squeezes the inner clamping piston rod to move to both sides. The inner clamping piston rod squeezes two sliders to slide in the slide groove. The slider drives the inner clamping plate to move toward one side of the inner wall of the robotic arm. The two inner clamping plates squeeze and position the robotic arm to limit its movement in the horizontal direction. The movement process of the inner clamping plates does not require manual adjustment, and the robotic arm is automatically clamped by hydraulic means. Subsequently, the inner clamping plate is connected to the top plate through the screw on the top. The top plate squeezes the robotic arm to limit its movement in the vertical direction, thereby stably clamping the robotic arm.

[0018] 2. The hydraulic tooling system for machining parts of electromechanical equipment is equipped with an outer clamping plate, an outer pushing mechanism and an inner pulling mechanism. The outer pushing mechanism on the outer clamping plate applies a pushing force to the middle of the outer shell, and the inner pulling mechanism applies a pulling force to the edge of the outer shell. The two opposing forces position the outer shell, so that the tooling can be used for both robotic arm clamping and outer shell clamping. The outer clamping plate is arranged on both sides of the two inner clamping plates, which can simultaneously clamp and position the robotic arm and the two outer shells, making it convenient for the robotic arm and the two outer shells to perform drilling processing.

[0019] 3. The hydraulic tooling system for machining parts of electromechanical equipment is provided with a hydraulic pump, an outward pushing mechanism and an inner pulling mechanism. The hydraulic pump is used to pass the hydraulic oil in the four inner pulling piston cylinders through the second oil inlet pipe and the first oil inlet pipe into the outer pushing piston cylinder. The inner pulling piston rod is moved toward the side close to the outer clamping plate by the negative pressure, and the outer pushing piston rod is squeezed by the hydraulic oil and moves toward the side of the outer shell, so that the four pulling blocks pull the edge of the outer shell toward one side, and the rubber block squeezes the middle of the outer shell toward the other side, so that the two sides of the outer shell are stably clamped. In this process, the hydraulic oil in the outer pushing piston cylinder is supplied by the four inner pulling piston cylinders, so that the outer shell is clamped when the inner pulling piston cylinder is under negative pressure and the outward pushing piston cylinder is under positive pressure, and the outer shell is loosened when the inner pulling piston cylinder is under positive pressure and the outward pushing piston cylinder is under negative pressure, thereby avoiding the trouble of the hydraulic pump driving the outward pushing piston cylinder and the inner pulling piston cylinder to supply and return oil at the same time, and making the oil circuit connection of the tooling system simpler.

[0020] 4. The hydraulic tooling system for machining electromechanical equipment parts is provided with a dust suction trough, a filter, an air suction pipe, a vacuum pump and an air outlet pipe. The vacuum pump draws air through the air suction pipe to place the dust suction trough in a negative pressure state. The dust suction trough draws air from the external environment through the pin holes on the orifice plate, so that the debris generated during the drilling process of the outer shell and the robotic arm passes through the orifice plate into the dust suction trough for collection, thereby preventing drilling debris and powder from floating in the air and polluting the environment. By installing the mounting plate on one side of the drill bit, the air outlet nozzle is directed toward the drill bit, and the air is exhausted from the air outlet of the vacuum pump through the air outlet pipe. The air flow is discharged from the air outlet nozzle to cool the working drill bit with air. The air flow discharged by the vacuum pump is used for air cooling of the drill bit surface, thereby making full use of the vacuum pump, thereby avoiding the situation where the drill bit surface temperature is too high and the drill bit strength is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the front structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the top view of the structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the overall structure of the tooling of the present invention;

[0024] Figure 4 This is a schematic diagram of the hydraulic pump connection structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the outer plywood structure of the present invention;

[0026] Figure 6 This is a schematic structural diagram of the orifice plate in the open state of the present invention;

[0027] Figure 7 It is a schematic diagram of the inner plywood structure of the present invention.

[0028] In the figure: 1. Base; 2. Robotic arm; 3. Inner clamping plate; 31. Slider; 32. Inner clamping piston cylinder; 33. Inner clamping piston rod; 34. Screw; 35. Spring; 4. Top plate; 41. Through hole; 42. Rubber pad; 43. Nut; 5. Outer clamping plate; 51. Dust suction groove; 52. Orifice plate; 53. Filter; 54. Suction pipe; 55. Vacuum pump; 56. Exhaust pipe; 57. Exhaust nozzle; 58. Mounting plate; 6. Outer Push mechanism; 61, outward-pushing piston cylinder; 62, outward-pushing piston rod; 63, rubber block; 7, inward-pull mechanism; 71, inward-pull piston cylinder; 72, inward-pull piston rod; 73, pulling block; 8, outer shell; 9, slide; 10, hydraulic pump; 11, oil tank; 12, first return oil pipe; 13, first oil inlet pipe; 14, second oil inlet pipe; 15, first oil supply pipe; 16, second return oil pipe; 17, second oil supply pipe; 18, one-way valve. DETAILED DESCRIPTION

[0029] The technical solution of the present invention is described clearly and completely below with reference to the accompanying drawings.

[0030] like Figure 1-Figure 7As shown, the hydraulic tooling system for machining parts of electromechanical equipment of this embodiment comprises a base 1, a robot arm 2 and a shell 8. Drilling mechanisms are installed on both sides of the base 1. The two drilling mechanisms work simultaneously to realize synchronous drilling of both sides of the robot arm 2 and the two shells 8, thereby speeding up the working efficiency of the robot arm 2; the shell 8 is in the shape of a round cover, and there are two shells 8. The two shells 8 are matched with the robot arm 2 for drilling processing; the upper surface of the base 1 is provided with an inner splint 3 on the inner side of the robot arm 2, and the inner splint 3 squeezes the inner walls on both sides of the robot arm 2 to limit the horizontal movement of the robot arm 2, and a top plate 4 is connected above the inner splint 3, and the top plate 4 squeezes the upper surface of the robot arm 2 to limit the longitudinal movement of the robot arm 2; the upper surface of the base 1 is provided with outer splints 5 on both sides of the robot arm 2, and the outer splint 5 is used to support the outward pushing mechanism 6 and the inner pulling mechanism 7 to clamp the shell 8, and is also used to adsorb and collect debris and dust generated during the drilling process; the outer splint 5 is arranged in the middle of one side away from the robot arm 2 Equipped with an outward push mechanism 6, an inner pull mechanism 7 is installed on the edges of the outer splint 5 away from the side of the robot arm 2, and the outward push mechanism 6 and the inner pull mechanism 7 cooperate with each other to clamp and position the shell 8. A slide groove 9 is opened on the upper surface of the base 1 below the robot arm 2. A hydraulic pump 10 is installed on one side of the base 1. The actual model of the hydraulic pump 10 is selected according to the actual size of the tooling system. One end of the hydraulic pump 10 is connected to an oil tank 11, and the oil tank 11 stores hydraulic oil. A first oil return pipe 12 is connected between the mechanism 6 and the inner pulling mechanism 7, which is used to return the hydraulic oil in the outward pushing piston cylinder 61 into the inner pulling piston cylinder 71. A second oil return pipe 16 is connected to the oil tank 11. The second oil return pipe 16 is used to return the hydraulic oil in the inner clamping piston cylinder 32 into the oil tank 11. A second oil supply pipe 17 is connected between the oil inlet of the hydraulic pump 10 and the oil tank 11. The first oil supply pipe 15 and the second oil supply pipe 17 are both used to pass the hydraulic oil in the oil tank 11 into the inner clamping piston cylinder 32.

[0031] Specifically, a first oil inlet pipe 13 is connected between the outward pushing mechanism 6 and the oil outlet of the hydraulic pump 10, and a second oil inlet pipe 14 is connected between the inward pulling mechanism 7 and the oil inlet of the hydraulic pump 10. The first oil inlet pipe 13 and the second oil inlet pipe 14 are both used to pass the hydraulic oil in the inward pulling piston cylinder 71 into the outward pushing piston cylinder 61. The oil outlet of the hydraulic pump 10 is also connected to a first oil supply pipe 15, and a one-way valve 18 is installed on the first return oil pipe 12, the first oil inlet pipe 13, the second oil inlet pipe 14, the first oil supply pipe 15, the second oil return pipe 16 and the second oil supply pipe 17. The one-way valve 18 is used to control the flow direction of the hydraulic oil in each pipeline and to open and close the flow of each pipeline, so as to facilitate the hydraulic pump 10 to drive the hydraulic oil flow path switching, and the oil inlet of the hydraulic pump 10 is connected to the second oil inlet pipe 14 and the second oil supply pipe 17 through a three-way pipe fitting, and the oil outlet of the hydraulic pump 10 is connected to the first oil inlet pipe 13 and the first oil supply pipe 15 through a three-way pipe fitting.

[0032] Furthermore, a slider 31 is connected to the bottom of the inner splint 3, an inner clamping piston cylinder 32 is installed inside the base 1, and inner clamping piston rods 33 are provided at both ends of the inner clamping piston cylinder 32. The inner clamping piston rod 33 is connected to a piston on one end of the inner clamping piston cylinder 32, and a screw 34 is connected to the center of the top of the inner splint 3. A spring 35 is sleeved on the outside of the screw 34, and the bottom end of the spring 35 is connected to the top of the inner splint 3. There are two inner splints 3, which are symmetrically arranged on the upper surface of the base 1. The sides of the two inner splints 3 away from each other are in contact with the inner walls on both sides of the robotic arm 2. The two inner splints 3 move in opposite directions and move toward one side of the inner wall of the robotic arm 2, thereby squeezing and positioning the inner walls on both sides of the robotic arm 2, and limiting the movement of the robotic arm 2 in the horizontal direction.

[0033] Furthermore, there are two inner clamping piston rods 33, which are respectively installed at the two ends of the inner cavity of the inner clamping piston cylinder 32. The oil inlet of the inner clamping piston cylinder 32 is connected with the oil outlet of the hydraulic pump 10 through the first oil supply pipe 15, which is convenient for oil to enter the inner cavity of the inner clamping piston cylinder 32. The oil outlet of the inner clamping piston cylinder 32 is connected with the oil tank 11 through the second oil return pipe 16, which is convenient for oil to exit the inner cavity of the inner clamping piston cylinder 32. Hydraulic oil is introduced into the inner clamping piston cylinder 32 through the hydraulic pump 10, and the hydraulic oil squeezes the piston to move, and the piston drives the inner clamping piston rod 33 to move to both sides, and the two inner clamping piston rods 33 squeeze the two sliders 31 to slide in the slide groove 9, and the slider 31 drives the inner clamping plate 3 to move toward one side of the inner wall of the robotic arm 2, and the two inner clamping plates 3 squeeze and position the robotic arm 2, limiting the movement of the robotic arm 2 in the horizontal direction, and the movement process of the inner clamping plate 3 does not require manual adjustment, thereby realizing hydraulic automatic clamping of the robotic arm 2.

[0034] Furthermore, a through hole 41 is opened through the middle of the top plate 4, and rubber pads 42 are installed on the bottom of both sides of the top plate 4. The rubber pads 42 are made of rubber, and a nut 43 is provided above the top plate 4 at a position corresponding to the through hole 41. The rubber pad 42 is in the shape of an arc strip. The rubber pad 42 is used to achieve flexible contact between the top plate 4 and the robotic arm 2, and to increase the friction between the top plate 4 and the upper surface of the robotic arm 2, thereby further limiting the movement of the robotic arm 2. The bottom of the top plate 4 contacts the upper surface of the robotic arm 2 through the rubber pad 42, and the inner clamping plate 3 is connected to the top plate 4 through the screw 34 on the top. The top plate 4 squeezes the robotic arm 2 to limit its movement in the vertical direction, thereby stably clamping the robotic arm 2.

[0035] Furthermore, the slider 31 is integrally connected to the inner splint 3, and the cross-section of the slider 31 is L-shaped. The width of the slider 31 is adapted to the width of the inner wall of the slide groove 9. The slider 31 is stuck in the slide groove 9 to form a sliding connection. The side wall of the slider 31 is connected to the inner clamping piston rod 33, and the inner clamping piston rod 33 squeezes the two sliders 31 to slide in the slide groove 9, and the slider 31 drives the inner splint 3 to move toward one side of the inner wall of the robotic arm 2. The outer diameter of the screw 34 is adapted to the inner diameter of the through hole 41. The screw 34 passes through the top plate 4 through the through hole 41. After the top of the screw 34 passes through the top plate 4, a nut 43 is sleeved. The top of the screw 34 is threadedly connected to the nut 43. The screw 34 is threadedly connected to the nut 43, and the top plate 4 is squeezed downward. The top plate 4 squeezes the spring 35 to compress, so that the top plate 4 squeezes the robotic arm 2 to limit its movement in the vertical direction.

[0036] Furthermore, a dust suction groove 51 is provided inside the outer splint 5, and a perforated plate 52 is installed on the outer side wall of the dust suction groove 51. A number of small holes are opened through the perforated plate 52. A filter screen 53 is installed on the side of the dust suction groove 51 close to the middle of the outer splint 5. The filter screen 53 is used to filter debris and dust in the air so that the debris and dust are collected inside the dust suction groove 51. An air intake pipe 54 is installed on the side of the filter screen 53 close to the middle of the outer splint 5. The two ends of the air intake pipe 54 are respectively connected to the dust suction groove 51 and a vacuum pump 55. The end of the air intake pipe 54 away from the outer splint 5 is connected to the vacuum pump 55. The actual model of the vacuum pump 55 is selected according to the size of the outer splint 5 and the adsorption pressure required for debris adsorption. The air outlet is connected to an air outlet pipe 56, and the tail end of the air outlet pipe 56 is connected to an air outlet nozzle 57. The air outlet nozzle 57 is in the shape of a hollow cone. The air outlet nozzle 57 is used to increase the exhaust pressure so that the air flow is discharged more accurately toward the side wall of the drill bit. The air outlet nozzle 57 is connected to a mounting plate 58. There are two outer splints 5, which are symmetrically arranged relative to the robotic arm 2. The outer splints 5 are cross-shaped. The outer splints 5 are between the robotic arm 2 and the outer shell 8. The bottom of the outer splint 5 is fixedly connected to the base 1. By designing the outer splint 5 into a cross shape, an installation basis is provided for the four inner pulling mechanisms 7, so that the four inner pulling mechanisms 7 are arranged equidistantly in the circumferential direction, ensuring that the inner pulling mechanisms 7 can apply pulling force to the edges of the outer shell 8.

[0037] Furthermore, there are two dust suction grooves 51, and both dust suction grooves 51 pass through the filter 53 and communicate with the air inlet of the vacuum pump 55 through the suction pipe 54. The dust suction groove 51 communicates with the external environment through the small holes on the orifice plate 52. The vacuum pump 55 sucks through the suction pipe 54, so that the dust suction groove 51 is in a negative pressure state. The dust suction groove 51 sucks the external ambient air through the pin hole on the orifice plate 52, so that the debris generated during the drilling process of the shell 8 and the robot arm 2 passes through the orifice plate 52 and enters the dust suction groove 51 for collection, thereby preventing the drilling debris and powder from floating in the air and polluting the environment. The air outlet pipe 56 is installed on the side of the drill bit through the mounting plate 58. The mounting plate 58 is provided with a mounting hole. The mounting plate 58 is installed on the drilling mechanism by passing the bolts through the mounting hole, and ensure that the air outlet direction of the air outlet nozzle 57 is toward the side wall of the drill bit. The air outlet of the vacuum pump 55 is exhausted through the air outlet pipe 56, and the air flow is discharged from the air outlet nozzle 57 to cool the working drill bit. The air flow discharged by the vacuum pump 55 is used for air cooling of the drill bit surface, and the vacuum pump 55 is fully utilized to avoid the situation where the drill bit surface temperature is too high and the drill bit strength is reduced.

[0038] The cam 73 is pressed against the outer wall of the casing 8 and the inner piston rod 72 is pressed against the outer wall of the casing 8. The cam 73 is pressed against the outer wall of the casing 8 and the inner piston rod 72 is pressed against the outer wall of the casing 8. The cam 73 is pressed against the outer wall of the casing 8 and the inner piston rod 72 is pressed against the outer wall of the casing 8. The cam 73 is pressed against the outer wall of the casing 8 and the inner piston rod 72 is pressed against the outer wall of the casing 8. The cam 73 is pressed against the outer wall of the casing 8 and the inner piston rod 72 is pressed against the outer wall of the casing 8. The cam 73 is pressed against the outer wall of the casing 8 and the inner piston rod 72 is pressed against the outer wall of the casing 8. The cam 73 is pressed against the outer wall of the casing 8 and the inner piston rod 72 is pressed against the outer wall of the casing 8. The four pulling blocks 73 apply pulling force to the edges of the outer shell 8. In actual application, the position of the pulling block 73 should be careful to avoid blocking the drilling position. There are four inner pulling mechanisms 7, which are distributed on the four edges of the outer splint 5 close to the outer shell 8. The oil inlets of the four inner pulling piston cylinders 71 are all connected to the first return oil pipe 12, and the oil outlets of the four inner pulling piston cylinders 71 are all connected to the second oil inlet pipe 14. The hydraulic oil in the four inner pulling piston cylinders 71 is passed into the outward pushing piston cylinder 61 through the second oil inlet pipe 14 and the first oil inlet pipe 13 by the hydraulic pump 10. The inner pulling piston rod 72 is moved toward the side close to the outer splint 5 under the action of negative pressure, so that the four pulling blocks 73 pull the edge of the outer shell 8 toward one side.

[0039] Furthermore, the outward pushing mechanism 6 includes an outward pushing piston cylinder 61, which is embedded in the center of the outer clamping plate 5, and an outward pushing piston rod 62 is provided inside the outward pushing piston cylinder 61. The end of the outward pushing piston rod 62 close to the outward pushing piston cylinder 61 is connected to a piston, and the end of the outward pushing piston rod 62 close to the outer shell 8 is connected to a rubber block 63. The side of the rubber block 63 away from the outward pushing piston rod 62 is convex in an arc shape, and the arc side of the rubber block 63 fits into the recessed part of the inner wall of the outer shell 8. The rubber block 63 contacts the central recessed part of the inner wall of the outer shell 8. The oil outlet of the outward pushing piston cylinder 61 is connected to the oil inlet of the four inner pulling piston cylinders 71 through the first oil return pipe 12, and the oil inlet of the outward pushing piston cylinder 61 is connected to the oil outlet of the hydraulic pump 10. The hydraulic oil in the four inner pulling piston cylinders 71 is passed into the outer pushing piston cylinder 61 through the second oil inlet pipe 14 and the first oil inlet pipe 13. The outer pushing piston rod 62 is squeezed by the hydraulic oil and moves toward one side of the outer shell 8. The rubber block 63 squeezes the middle part of the side of the outer shell 8 close to the outer clamping plate 5. The outer pushing mechanism 6 and the inner pulling mechanism 7 cooperate. The outer pushing mechanism 6 applies a thrust to the middle part of the outer shell 8, and the inner pulling mechanism 7 applies a pulling force to the edge of the outer shell 8. The two reverse forces position the outer shell 8. At the same time, the hydraulic oil in the outer pushing piston cylinder 61 is supplied by the four inner pulling piston cylinders 71 during this process, so as to clamp the outer shell 8 when the inner pulling piston cylinder 71 is under negative pressure and the outer pushing piston cylinder 61 is under positive pressure, and loosen the outer shell 8 when the inner pulling piston cylinder 71 is under positive pressure and the outer pushing piston cylinder 61 is under negative pressure.

[0040] The method of using this embodiment is as follows: when the user is actually drilling the mechanical arm 2 and the shell 8 of the industrial robot, first the joint of the mechanical arm 2 to be processed is placed at the center of the upper surface of the base 1, so that one side of the inner clamping plate 3 is close to the inner wall of the mechanical arm 2, and the hydraulic pump 10, the second oil supply pipe 17 and the one-way valve 18 on the second oil supply pipe 17 are turned on. The hydraulic pump 10 drives the hydraulic oil in the oil tank 11 to pass through the second oil supply pipe 17, and then enters the inner clamp piston cylinder 32 from the second oil supply pipe 17. The hydraulic oil is passed in to squeeze the pistons connected to the two inner clamp piston rods 33 to move, so that the two inner clamp piston rods 33 move toward both sides, and the inner clamp piston rods 33 push the two sliders 31 to slide in the slide groove 9, and the sliders 31 with The inner clamping plate 3 is moved toward one side of the inner wall of the robot arm 2, and the two inner clamping plates 3 squeeze and position the robot arm 2 to limit the movement of the robot arm 2 in the horizontal direction; then the top plate 4 is placed above the robot arm 2, and the rubber pad 42 contacts the upper surface of the robot arm 2. At this time, the screw 34 passes through the top plate 4 through the through hole 41, and the screw 34 is threadedly connected with the nut 43, squeezing the top plate 4 downward, so that the top plate 4 squeezes the robot arm 2 to limit its movement in the vertical direction. Then, the two shells 8 to be processed are respectively placed on the side of the outer clamping plate 5 away from the robot arm 2. At this time, the inner pulling piston cylinder 71 is connected to the outer pushing piston cylinder 61 through the first reflux pipe, and the outer pushing piston rod 62 is squeezed by the outer shell 8, which can cause the outer pushing piston rod 62 to shrink, and the inner The pulling piston rod 72 is extended, increasing the gap between the outward-pushing piston rod 62 and the inner-pull piston rod 72, so that the outer shell 8 is placed between the rubber block 63 and the pulling block 73; then the hydraulic pump 10, the one-way valve 18 on the first oil inlet pipe 13 and the second oil inlet pipe 14 are opened, and the hydraulic pump 10 drives the hydraulic oil in the four inner-pull piston cylinders 71 to pass into the outward-pushing piston cylinder 61 through the second oil inlet pipe 14 and the first oil inlet pipe 13. The inner-pull piston rod 72 is moved toward the side close to the outer splint 5 by the negative pressure, and the outward-pushing piston rod 62 is squeezed by the hydraulic oil and moves toward the side of the outer shell 8. At this time, the inner-pull piston rod 72 pulls the four pulling blocks 73 to apply tension to the side walls of the outer shell 8, and the outward-pushing piston rod 62 pushes the rubber block 63 to squeeze the inner wall of the outer shell 8. The center of the wall is located so that both sides of the shell 8 are subjected to force and are stably clamped; then the mounting plate 58 on the air outlet pipe 56 is installed on one side of the drill bit, so that the air outlet nozzle 57 faces the side wall of the drill bit, and then the drilling mechanism is turned on. The two drill bits drill the shell 8 and the robot arm 2 from both sides in turn. During the drilling process, the vacuum pump 55 sucks through the suction pipe 54, so that the dust suction groove 51 is in a negative pressure state. The dust suction groove 51 sucks the external ambient air through the pin holes on the orifice plate 52, so that the debris generated during the drilling process of the shell 8 and the robot arm 2 passes through the orifice plate 52 and enters the dust suction groove 51 for collection. The air outlet of the vacuum pump 55 is exhausted through the air outlet pipe 56, and the air flow is discharged from the air outlet nozzle 57 to cool the working drill bit;After drilling is completed, the one-way valves 18 on the first and second return pipes are opened, allowing the hydraulic oil in the outward-pushing piston cylinder 61 to flow back through the first return pipe into the inward-pull piston cylinder 71 under pressure, loosening the clamping effect on the outer shell 8. The hydraulic oil in the inner-clamping piston cylinder 32 is also squeezed and flows back through the second return pipe into the oil tank 11.

[0041] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art may modify or substitute equivalents for the technical solutions described in the aforementioned embodiments. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are encompassed within the scope of protection of the present invention.

Claims

1. A hydraulic tooling system for machining parts of electromechanical equipment, which simultaneously clamps and positions a robot arm and two housings, comprising a base (1), a robot arm (2) and a housing (8), and is characterized in that: The upper surface of the base (1) is provided with an inner clamping plate (3) on the inner side of the mechanical arm (2), and a top plate (4) is connected above the inner clamping plate (3). The upper surface of the base (1) is provided with outer clamping plates (5) on both sides of the mechanical arm (2). An outward pushing mechanism (6) is installed in the middle of the side of the outer clamping plate (5) away from the mechanical arm (2), and an inner pulling mechanism (7) is installed on all four edges of the side of the outer clamping plate (5) away from the mechanical arm (2). A slide groove (9) is provided on the upper surface of the base (1) below the mechanical arm (2). A hydraulic pump (10) is installed on one side of the base (1), and one end of the hydraulic pump (10) is connected to an oil tank (11). A first oil return pipe (12) is connected between the outward pushing mechanism (6) and the inner pulling mechanism (7), a second oil return pipe (16) is connected to the oil tank (11), and a second oil supply pipe (17) is connected between the oil inlet of the hydraulic pump (10) and the oil tank (11); A first oil inlet pipe (13) is connected between the outward pushing mechanism (6) and the oil outlet of the hydraulic pump (10), a second oil inlet pipe (14) is connected between the inward pulling mechanism (7) and the oil inlet of the hydraulic pump (10), the oil outlet of the hydraulic pump (10) is also connected to a first oil supply pipe (15), and a one-way valve (18) is installed on the first oil return pipe (12), the first oil inlet pipe (13), the second oil inlet pipe (14), the first oil supply pipe (15), the second oil return pipe (16) and the second oil supply pipe (17); The bottom of the inner clamping plate (3) is connected to a slider (31), an inner clamping piston cylinder (32) is installed inside the base (1), and inner clamping piston rods (33) are provided at both ends of the inner clamping piston cylinder (32). A screw (34) is connected to the center of the top of the inner clamping plate (3), and a spring (35) is provided on the outside of the screw (34). There are two inner clamping plates (3) symmetrically arranged on the upper surface of the base (1), and the sides of the two inner clamping plates (3) that are away from each other are in contact with the inner walls of both sides of the robot arm (2); There are two inner clamping piston rods (33), which are respectively installed at the two ends of the inner cavity of the inner clamping piston cylinder (32). The oil inlet of the inner clamping piston cylinder (32) is connected to the oil outlet of the hydraulic pump (10) through the first oil supply pipe (15), and the oil outlet of the inner clamping piston cylinder (32) is connected to the oil tank (11) through the second oil return pipe (16); The inner pulling mechanism (7) includes an inner pulling piston cylinder (71), an inner pulling piston rod (72) is provided inside the inner pulling piston cylinder (71), and the end of the inner pulling piston rod (72) close to the outer shell (8) is connected to a pulling block (73), the pulling block (73) is L-shaped, the pulling block (73) is connected to the end of the inner pulling piston rod (72) close to the outer shell (8), and the pulling block (73) is clamped on the outer edge of the outer shell (8). There are four inner pulling mechanisms (7), which are distributed on the four edges of the outer splint (5) close to the outer shell (8). The oil inlets of the four inner pulling piston cylinders (71) are connected to the first return oil pipe (12), and the oil outlets of the four inner pulling piston cylinders (71) are connected to the second oil inlet pipe (14). The outward pushing mechanism (6) includes an outward pushing piston cylinder (61), an outward pushing piston rod (62) is provided inside the outward pushing piston cylinder (61), and a rubber block (63) is connected to one end of the outward pushing piston rod (62) close to the outer shell (8), and the rubber block (63) contacts the central recessed portion of the inner wall of the outer shell (8). The oil outlet of the outward pushing piston cylinder (61) is connected to the oil inlets of the four inner pulling piston cylinders (71) through the first oil return pipe (12), and the oil inlet of the outward pushing piston cylinder (61) is connected to the oil outlet of the hydraulic pump (10).

2. The hydraulic tooling system for machining electromechanical equipment parts according to claim 1, characterized in that: A through hole (41) is provided through the middle of the top plate (4), rubber pads (42) are installed at the bottom of both sides of the top plate (4), nuts (43) are provided above the top plate (4) at positions corresponding to the through holes (41), the rubber pads (42) are in the shape of arc strips, and the bottom of the top plate (4) contacts the upper surface of the robot arm (2) through the rubber pads (42).

3. The hydraulic tooling system for machining electromechanical equipment parts according to claim 1, characterized in that: The slider (31) is integrally connected to the inner clamping plate (3), and the cross-section of the slider (31) is L-shaped. The slider (31) is clamped inside the slide groove (9) to form a sliding connection. The side wall of the slider (31) is connected to the inner clamping piston rod (33). The outer diameter of the screw (34) is compatible with the inner diameter of the through hole (41). The screw (34) passes through the top plate (4) through the through hole (41), and the top of the screw (34) is threadedly connected to the nut (43).

4. The hydraulic tooling system for machining electromechanical equipment parts according to claim 1, characterized in that: A dust suction groove (51) is provided inside the outer splint (5), and a perforated plate (52) is installed on the outer wall of the dust suction groove (51). A filter screen (53) is installed on the side of the dust suction groove (51) close to the middle of the outer splint (5), and an air suction pipe (54) is installed on the side of the filter screen (53) close to the middle of the outer splint (5). The end of the air suction pipe (54) away from the outer splint (5) is connected to a vacuum pump (55), and the air outlet of the vacuum pump (55) is connected to an air outlet pipe (56), and the tail end of the air outlet pipe (56) is connected to an air outlet nozzle (57), and the air outlet nozzle (57) is connected to a mounting plate (58). There are two outer splints (5), which are symmetrically arranged relative to the robot arm (2). The outer splints (5) are cross-shaped and are located between the robot arm (2) and the shell (8). The bottom of the outer splint (5) is fixedly connected to the base (1).

5. The hydraulic tooling system for machining electromechanical equipment parts according to claim 4, characterized in that: There are two dust suction grooves (51), both of which are connected to the air inlet of the vacuum pump (55) through the filter (53) and the air suction pipe (54). The air outlet pipe (56) is installed on one side of the drill bit through the mounting plate (58).

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