Automatic assembly device for hydraulic cylinder guide sleeve

Abstract

The present application discloses an automatic assembly device for a guide sleeve of a hydraulic cylinder, which belongs to the technical field of hydraulic cylinder manufacturing. It mainly includes a grabbing robot arm, a positioning tool and a clamping mechanism, the cylinder assembly is positioned and fixed between the positioning tool and the clamping mechanism, and a guide sleeve tightening system. The guide sleeve tightening system includes an XY horizontal moving assembly, and the tightening rotating assembly and the cylinder rod positioning assembly are both installed on the top surface of the XY horizontal moving assembly. The XY horizontal moving assembly drives the tightening rotating assembly and the cylinder rod positioning assembly to approach the guide sleeve and install the guide sleeve on the end of the cylinder assembly through the tightening rotating assembly, thereby realizing unmanned assembly, reducing dependence on highly skilled operators, and reducing labor costs. At the same time, the assembly quality is improved, the production efficiency is significantly improved, and an innovative automatic assembly solution is provided for the manufacturing industry of hydraulic cylinders, which has significant economic benefits and practical application value.

Description

Technical Field

[0001] The present application relates to the technical field of hydraulic cylinder manufacturing, and in particular to an automatic assembly device for a hydraulic cylinder guide sleeve. Background Art

[0002] In the traditional hydraulic cylinder production process, the assembly process of the cylinder rod guide sleeve and the cylinder barrel is usually completed manually. This traditional method has several key problems and is significantly limited in terms of quality control and production increase. First, from the perspective of quality control, the accuracy and consistency of manual assembly are difficult to guarantee. Differences in the skill level of operators, as well as factors such as fatigue and distraction, may lead to fluctuations in assembly quality and cause fluctuations in the reliability of cylinder performance.

[0003] Secondly, in terms of output, the efficiency of manual assembly is limited by the workers’ operating speed and work intensity. It is difficult to significantly improve production efficiency in a short period of time by relying on manual operation, and the increase in production pressure will further affect the assembly quality, forming a vicious cycle.

[0004] In summary, the problems existing in the manual assembly process have prompted the industry to seek a more efficient, accurate and reliable automated assembly method to solve the above problems and improve production efficiency and product quality. This is the technical background and motivation of the automatic assembly method of the hydraulic cylinder rod guide sleeve and cylinder barrel proposed in the utility model.

[0005] Therefore, it is necessary to provide a hydraulic cylinder guide sleeve automatic assembly device to solve the above problems.

[0006] It should be noted that the above information disclosed in this background technology section is only for understanding the background technology of the present application concept, and therefore, it may contain information that does not constitute the prior art. Utility Model Content

[0007] Based on the above problems existing in the prior art, the problem to be solved by the present application is: to provide an automatic assembly device for a hydraulic cylinder guide sleeve to solve the inconvenience of manual installation of the guide sleeve.

[0008] The technical solution adopted by this application to solve its technical problem is:

[0009] An automatic assembly device for a hydraulic cylinder guide sleeve comprises a grabbing robot arm for grabbing a guide sleeve and a cylinder assembly to be assembled, a positioning tool and a clamping mechanism for positioning and fixing the cylinder assembly, wherein the cylinder assembly is positioned and fixed between the positioning tool and the clamping mechanism;

[0010] A guide sleeve tightening system, the guide sleeve tightening system comprising an XY horizontal moving assembly for moving a tightening rotating assembly and a cylinder rod positioning assembly, the tightening rotating assembly and the cylinder rod positioning assembly are both mounted on the top surface of the XY horizontal moving assembly, the XY horizontal moving assembly drives the tightening rotating assembly and the cylinder rod positioning assembly to approach the guide sleeve and install the guide sleeve on the end of the cylinder assembly through the tightening rotating assembly;

[0011] The tightening rotation assembly includes a rotation assembly and a limit assembly, and the rotation assembly includes a support frame, a motor reducer, a driving gear and a driven gear. One side of the support frame is fixedly installed with the motor reducer by screws, the output shaft of the motor reducer is connected with the internal key of the driving gear, and the side wall of the driving gear is meshed with the driven gear.

[0012] The limit assembly includes an electric actuator, a fixed ring, a rigid pin and a stopper. The side wall of the fixed ring is fixed to the side wall of the support frame through a connecting rod. The electric actuator is installed on one side wall of the fixed ring. The actuating shaft of the electric actuator is installed with one end of the rigid pin through a transmission rod. The stopper is fixedly installed on the other side wall of the fixed ring. The rigid pin is slidably connected to the inside of the stopper. The side wall of the stopper contacts the side wall of the guide sleeve away from the cylinder assembly.

[0013] Preferably, the positioning tool includes a first workbench, a first positioning pin, a lower clamp and a lower V-shaped block, the first positioning pin is fixedly mounted on the top surface of the first workbench, the side wall of the first positioning pin is socketed with the tail of the cylinder assembly, the lower clamp is fixedly mounted on the first workbench by screws, the lower V-shaped block is arranged on the top surface of the lower clamp, and the bottom of the cylinder assembly is placed in the V-shaped groove of the lower V-shaped block.

[0014] Preferably, the clamping mechanism includes a first cylinder, a mounting seat, an upper clamp and an upper V-shaped block, the telescopic shaft of the first cylinder is fixedly mounted on the bottom of the mounting seat, the side wall end of the mounting seat is fixedly mounted on the upper clamp, the upper V-shaped block is arranged on the bottom surface of the upper clamp, the top of the cylinder assembly is placed in the V-shaped groove of the upper clamp, and the first cylinder is driven to move up and down above the lower clamp through the mounting seat.

[0015] Preferably, the XY horizontal moving assembly includes an X-moving assembly, a Y-moving assembly and a second workbench, the Y-moving assembly is installed above the X-moving assembly, and the X-moving assembly is installed on the top surface of the second workbench.

[0016] Preferably, the X-axis moving assembly includes a first guide rail, a first servo motor and a first moving seat, the first guide rails are respectively installed on both sides of the top surface of the second workbench, the first servo motor is installed on one side of the second workbench through a fixed plate, the output shaft of the first servo motor is fixedly installed on one end of the screw rod, and the interior of the first moving seat is threadedly connected to the side wall of the screw rod.

[0017] Preferably, the Y-axis moving assembly includes an X-axis moving plate, a second guide rail, a second servo motor, a second moving seat and a Y-axis moving plate, the X-axis moving plate is fixedly mounted on the top surface of the first moving seat, the second guide rails are fixedly mounted on the top surface of the X-axis moving plate by screws, one side of the X-axis moving plate is fixedly mounted on the second servo motor through a fixing plate, the output shaft of the second servo motor is fixedly mounted on the end of the screw rod, the interior of the second moving seat is threadedly connected to the side wall of the screw rod, and the Y-axis moving plate is mounted on the top surface of the second moving seat.

[0018] Preferably, the cylinder rod positioning assembly includes a mounting frame, a second cylinder and a second positioning pin, the mounting frame is fixedly mounted on the top surface of the Y-axis movable plate by screws, the second cylinder is mounted on the side wall of the mounting frame, the telescopic shaft of the second cylinder is fixedly connected to a connecting plate, and the second positioning pin is mounted on the connecting plate

[0019] Preferably, one side of the guide sleeve tightening system is also equipped with an assembly position accuracy control device for detecting the installation position of the guide sleeve, and the assembly position accuracy control device includes an adjustable mechanical arm and a camera for visual detection, and the camera shooting angle is located on one side of the guide sleeve.

[0020] The beneficial effects of this application are:

[0021] The guide sleeve and cylinder assembly are automatically grasped by the grasping robot arm, the cylinder assembly is fixedly positioned by the positioning tooling and clamping mechanism, and the guide sleeve tightening system rotates the guide sleeve on the cylinder assembly, replacing the manual installation process. Unmanned assembly is fully realized, reducing dependence on highly skilled operators and reducing labor costs.

[0022] At the same time, it improves the assembly quality, significantly increases production efficiency, and provides an innovative automatic assembly solution for the hydraulic cylinder manufacturing industry, which has significant economic benefits and practical application value.

[0023] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings in the specification, which constitute a part of the present application, are used to provide further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0025] In the attached picture:

[0026] Figure 1 This is a schematic diagram of the overall structure of an automatic assembly device for a hydraulic cylinder guide sleeve of the utility model;

[0027] Figure 2 This is a schematic diagram of the positioning fixture and clamping mechanism structure of the utility model;

[0028] Figure 3 This is a schematic diagram of the XY horizontal moving component structure of the utility model;

[0029] Figure 4 This is a schematic diagram of the structure of the rotating assembly of the utility model;

[0030] Figure 5 This is a schematic diagram of the structure of the limit assembly of the utility model;

[0031] Figure 6 This is a control system block diagram of the automatic assembly device for hydraulic cylinder guide sleeves of the utility model;

[0032] Figure 7 This is a block diagram of the guide sleeve tightening system of the utility model.

[0033] Among them, the reference numerals in the figure are:

[0034] 1. Guide sleeve;

[0035] 2. Cylinder assembly;

[0036] 3. Tighten the rotating assembly; 31. Support frame; 32. Motor reducer; 33. Driving gear; 34. Driven gear; 35. Electric actuator; 36. Fixing ring; 37. Rigid pin; 38. Stopper

[0037] 4. Grasping robot arm;

[0038] 5. Assembly position accuracy control device;

[0039] 6. Positioning tool; 61. First workbench; 62. First positioning pin; 63. Lower clamping plate; 64. Lower V-shaped block;

[0040] 7. Clamping mechanism; 71. First cylinder; 72. Mounting seat; 73. Upper clamping plate; 74. Upper V-shaped block;

[0041] 8. XY horizontal moving assembly; 81. second workbench; 82. first guide rail; 83. first servo motor; 84. first moving seat; 85. X-direction moving plate; 86. second guide rail; 87. second servo motor; 88. second moving seat; 89. Y-direction moving plate;

[0042] 9. Cylinder rod positioning assembly; 91. Mounting frame; 92. Second cylinder; 93. Second positioning pin. DETAILED DESCRIPTION

[0043] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0044] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present application.

[0045] See also Figure 1-7 , the utility model provides the embodiment:

[0046] Example 1

[0047] like Figure 1 As shown, an automatic assembly device for a hydraulic cylinder guide sleeve includes a grasping robot arm 4 for grasping a guide sleeve 1 and a cylinder assembly 2 to be assembled. The grasping robot arm 4 uses a highly flexible and stable arm to automatically grasp the cylinder to be assembled.

[0048] The end of the grabbing robot arm 4 is equipped with a quickly replaceable tool head to adapt to the grabbing of cylinders of different sizes and models to ensure efficient and accurate assembly. The arm exchanges information and completes instructions with other systems through a digital communication system. At the same time, after completing the grabbing of the cylinder, the end effector of the arm will quickly shift to the guide sleeve 1 on the cylinder assembly 2 to complete the grabbing of the guide sleeve 1.

[0049] Specifically, the grasping robot arm 4 grasps the cylinder assembly 2 from the conveyor line with a gripper, and the installation distance between the end faces of the guide sleeve 1 and the cylinder assembly 2 is greater than the tightening length of the guide sleeve thread. The grasping robot arm 4 grasps the guide sleeve 1 with a gripper and rotates it. At this time, the cylinder assembly 2 is limited to prevent it from rotating with the guide sleeve 1. The assembly position accuracy control device 5 is used to track the position of the tightening hole of the guide sleeve 1 during the rotation process, and the rotation is stopped after reaching the predetermined position.

[0050] like Figure 2 As shown, a positioning fixture 6 and a clamping mechanism 7 are used to position and fix the cylinder assembly 2, and the cylinder assembly 2 is positioned and fixed between the positioning fixture 6 and the clamping mechanism 7;

[0051] The positioning tool 6 includes a first workbench 61, a first positioning pin 62, a lower clamping plate 63 and a lower V-block 64. The first positioning pin 62 is fixedly installed on the top surface of the first workbench 61. The side wall of the first positioning pin 62 is socketed with the tail of the cylinder assembly 2. The lower clamping plate 63 is fixedly installed on the first workbench 61 by screws. The lower V-block 64 is arranged on the top surface of the lower clamping plate 63. The bottom of the cylinder assembly 2 is placed in the V-shaped groove of the lower V-block 64 to accurately position the cylinder. Two positioning mechanisms are arranged on the main structure for rapid positioning and stable clamping of the cylinder, and are suitable for the installation of cylinder guide sleeves of different lengths and cylinder diameters.

[0052] Specifically, the first positioning pin 62 is used to fix the X-axis position of the cylinder assembly 2, and then the lower V-block 64 is used to fix the Y-axis and Z-axis positions of the cylinder assembly 2. Preferably, a nylon stopper can be installed on the lower V-block 64 to avoid scratching the outer surface of the cylinder assembly 2, and different V-blocks can be used to convert the production of cylinder assemblies 2 with different cylinder diameters, so that the Z-axis center position of cylinder assemblies 2 of different models can be unified by different V-blocks.

[0053] The clamping mechanism 7 includes a first cylinder 71, a mounting seat 72, an upper clamping plate 73 and an upper V-shaped block 74. The telescopic shaft of the first cylinder 71 is fixedly mounted on the bottom of the mounting seat 72, the side wall end of the mounting seat 72 is fixedly mounted on the upper clamping plate 73, the upper V-shaped block 74 is arranged on the bottom surface of the upper clamping plate 73, the top of the cylinder assembly 2 is placed in the V-shaped groove of the upper clamping plate 73, and the first cylinder 71 is driven by the mounting seat 72 to move up and down above the lower clamping plate 63. The number of clamping mechanisms 7 and positioning tooling 6 is the same.

[0054] Specifically, the first cylinder 71 drives the mounting seat 72 and the upper clamping plate 73 to move up and down above the lower clamping plate 63. During the up and down movement, the upper V-block 74 and the lower V-block 64 work together on the cylinder assembly 2 to clamp and fix the cylinder assembly 2 to ensure that the installation position of the cylinder assembly 2 can be fixed.

[0055] The above is the positioning and clamping process of the cylinder assembly 2, and how to install the guide sleeve 1 on the cylinder assembly 2 during the automatic transfer process of the cylinder assembly 2 and the guide sleeve 1, as follows:

[0056] Example 2

[0057] The guide sleeve tightening system includes an XY horizontal moving assembly 8 for moving the tightening rotating assembly 3 and the cylinder rod positioning assembly 9. The tightening rotating assembly 3 and the cylinder rod positioning assembly 9 are both installed on the top surface of the XY horizontal moving assembly 8. The XY horizontal moving assembly 8 drives the tightening rotating assembly 3 and the cylinder rod positioning assembly 9 to approach the guide sleeve 1 and install the guide sleeve 1 on the end of the cylinder assembly 2 through the tightening rotating assembly 3.

[0058] like Figure 3 As shown, the XY horizontal moving assembly 8 includes an X-direction moving assembly, a Y-direction moving assembly and a second workbench 81 . The Y-direction moving assembly is installed above the X-direction moving assembly, and the X-direction moving assembly is installed on the top surface of the second workbench 81 .

[0059] The X-axis moving assembly includes a first guide rail 82, a first servo motor 83 and a first moving seat 84. The first guide rail 82 is respectively installed on both sides of the top surface of the second workbench 81. The first servo motor 83 is installed on one side of the second workbench 81 through a fixed plate. The output shaft of the first servo motor 83 is fixedly installed on one end of the screw rod, and the interior of the first moving seat 84 is threadedly connected to the side wall of the screw rod.

[0060] The Y-direction moving assembly includes an X-direction moving plate 85, a second guide rail 86, a second servo motor 87, a second moving seat 88 and a Y-direction moving plate 89, wherein the X-direction moving plate 85 is fixedly mounted on the top surface of the first moving seat 84, the second guide rails 86 are respectively fixedly mounted on the top surface of the X-direction moving plate 85 by screws, one side of the X-direction moving plate 85 is fixedly mounted with the second servo motor 87 by a fixing plate, the output shaft of the second servo motor 87 is fixedly mounted with the end of the screw rod, the interior of the second moving seat 88 is threadedly connected with the side wall of the screw rod, and the Y-direction moving plate 89 is mounted on the top surface of the second moving seat 88;

[0061] By controlling the first servo motor 83 and the second servo motor 87, the Y-direction moving plate 89 can move in the X-direction and the Y-direction on the second workbench 81, so that the position of the tightening rotating assembly 3 and the cylinder rod positioning assembly 9 installed thereon can be adjusted accordingly, and the processing can be adjusted according to the cylinder assembly 2 to be positioned and clamped. Specifically, by controlling the forward and reverse rotation of the first servo motor 83, the first moving seat 84 can move in the X-direction along the side wall of the screw rod, so that the Y-direction moving assembly can also move in the X-direction along with the driving of the X-direction moving assembly;

[0062] Then, the second servo motor 87 drives the screw rod to rotate forward and reverse, and the second movable seat 88 drives the Y-axis movable plate 89 to move in the Y direction, so that the position of the tightening rotating component 3 and the cylinder rod positioning component 9 installed thereon can be adjusted and changed.

[0063] Among them, Figure 4-5 As shown, the tightening rotation assembly 3 includes a rotation assembly and a limit assembly, and the rotation assembly includes a support frame 31, a motor reducer 32, a driving gear 33 and a driven gear 34. One side of the support frame 31 is fixedly installed with the motor reducer 32 by screws, the output shaft of the motor reducer 32 is connected with the internal key of the driving gear 33, and the side wall of the driving gear 33 is meshed and connected with the driven gear 34;

[0064] The motor reducer 32 is controlled to drive the driving gear 33 to rotate, so that the driving gear 33 drives the driven gear 34 to rotate on the support frame 31, wherein the inner diameter of the driven gear 34 can rotate in the through hole opened on the support frame 31 through a roller bearing to provide support force for the rotation of the driven gear 34.

[0065] During the rotation of the driven gear 34, the limiting assembly on the side wall will also rotate accordingly. During this process, the rotating assembly can provide the guide sleeve 1 with an installation rotation force, and then the guide sleeve 1 can be limited and fixed by the limiting assembly, so that the guide sleeve 1 can rotate synchronously with the driven gear 34.

[0066] The limiting assembly includes an electric actuator 35, a fixing ring 36, a rigid pin 37 and a stopper 38. The side wall of the fixing ring 36 is fixed to the side wall of the support frame 31 through a connecting rod. The electric actuator 35 is installed on one side wall of the fixing ring 36. The execution shaft of the electric actuator 35 is installed with one end of the rigid pin 37 through a transmission rod. The stopper 38 is fixedly installed on the other side wall of the fixing ring 36. The rigid pin 37 is slidably connected to the inside of the stopper 38. The side wall of the stopper 38 abuts against the side wall of the guide sleeve 1 away from the cylinder assembly 2.

[0067] The rigid pin 37 is driven by the electric actuator 35 to move into the tightening hole opened on the side wall of the guide sleeve 1, so that it is completely inserted into the tightening hole of the guide sleeve 1 to limit the position of the guide sleeve 1. At the same time, when it is installed with the cylinder assembly 2, the stopper 38 can contact with the guide sleeve 1 to prevent the guide sleeve 1 from moving.

[0068] The cylinder rod positioning assembly 9 includes a mounting frame 91, a second cylinder 92 and a second positioning pin 93. The mounting frame 91 is fixedly mounted on the top surface of the Y-axis movable plate 89 by screws, and the second cylinder 92 is mounted on the side wall of the mounting frame 91. The telescopic shaft of the second cylinder 92 is fixedly connected to a connecting plate, and the second positioning pin 93 is mounted on the connecting plate. The connecting plate and the second positioning pin 93 are driven to move up and down by extending or shortening the telescopic shaft of the second cylinder 92, and then cooperate with the XY horizontal moving assembly 8 to enable the second positioning pin 93 to move in the XYZ axial direction, so as to limit the cylinder rod position of the cylinder barrel assembly 2 more practically, so as to facilitate the rotation installation of the guide sleeve 1.

[0069] One side of the guide sleeve tightening system is also equipped with an assembly position accuracy control device 5 for detecting the installation position of the guide sleeve. The assembly position accuracy control device 5 includes an adjustable mechanical arm and a camera for visual detection. The camera shooting angle is located on one side of the guide sleeve 1. It should be noted that the camera is a high-resolution visual camera that can capture the position information of the guide sleeve 1 during rotation in real time, and analyze the position of the tightening hole on the guide sleeve 1 through image processing software, and provide the tightening hole position data to the grasping robot mechanical arm 4 in real time. After the tightening hole on the guide sleeve 1 is rotated into place, an instruction is issued, and the end effector of the grasping robot mechanical arm 4 will release the guide sleeve 1, and the entire system enters the tightening process of the guide sleeve 1. The real-time feedback of the assembly position accuracy control device is combined with the precise adjustment of the control system to ensure that the tightening hole of the guide sleeve 1 appears at the required position.

[0070] Example 3

[0071] like Figure 6-7 As shown, in order to realize the automatic assembly of the guide sleeve 1 in the above-mentioned embodiment 1 and embodiment 2, a control system for the automatic assembly device of the hydraulic cylinder guide sleeve is also required, and the system mainly includes a PLC for controlling the system.

[0072] By installing a detection in-position sensor at the position of the positioning fixture 6, when the grasping robot arm 4 places the cylinder assembly 2 and the cylinder rod assembly on the positioning fixture 6, a signal is given to the PLC. After processing, the PLC gives a signal to drive the clamping mechanism 7 to clamp the cylinder assembly 2 using the first cylinder 71, and transmits the cylinder movement to the PLC through the cylinder stroke sensor to send a signal.

[0073] Before installing the guide sleeve 1, the XY horizontal moving component 8 automatically adjusts the Y-moving component according to the product model signal given by the PLC, and makes the center of the tightening rotating component 3 concentric with the center of the cylinder assembly 2. The initial position of the X-moving component is that the tightening rotating system retreats to the farthest end, and moves along the X-axis according to the action signal of the clamping mechanism 7 given by the PLC. After automatically moving a certain distance, the second positioning pin 93 on the cylinder rod positioning component 9 limits the cylinder rod according to the adjustment of the second cylinder 92.

[0074] After the cylinder rod is limited, it will slide along the X-axis cylinder assembly 2, which will go through two stages. In the first stage, the cylinder rod and the guide sleeve 1 move together until the guide sleeve 1 and the cylinder assembly 2 are in contact; in the second stage, the guide sleeve 1 is fixed, and the XY horizontal moving assembly 8 and the cylinder rod slide along the X-axis cylinder assembly 2 until the stopper 38 contacts the guide sleeve 1.

[0075] After the stopper 38 contacts the guide sleeve 1, the Hall sensor on the tightening rotating component 3 sends a signal to the PLC. The PLC sends a signal that the XY horizontal moving component 8 slides a certain distance away from the cylinder component 2 along the X direction. At this time, the center position of the rigid pin 37 on the tightening rotating component 3 and the center position of the tightening hole on the guide sleeve 1 coincide in the X direction. The limit component drives the electric actuator 35 to move a certain distance according to the signal given by the PLC, so that the rigid pin is completely limited to the tightening hole of the guide sleeve 1.

[0076] According to the signal given by the PLC, the motor reducer drives the active gear to rotate and rotates according to the set torque. The guide sleeve 1 is screwed into the cylinder assembly 2 until the thread is fully screwed in. The tightening state is judged according to the tightening torque feedback. The torque is automatically increased after it is fully screwed in. After the guide sleeve 1 is tightened twice according to the specified torque, the tightening rotation system stops and feeds the signal back to the PLC. According to the signal given by the PLC, the rigid pin 37 is moved to the initial position, the second positioning pin 93 on the cylinder rod positioning assembly 9 is retracted, the XY horizontal movement assembly 8 returns to the X-direction initial position, the clamping mechanism 7 clamps the cylinder to open, and the grasping robot arm 4 uses the gripper to place the assembled cylinder to the next station.

[0077] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An automatic assembly device for a hydraulic cylinder guide sleeve, characterized in that: It comprises a grasping robot mechanical arm (4) for grasping a guide sleeve (1) and a cylinder assembly (2) to be assembled, a positioning tool (6) and a clamping mechanism (7) for positioning and fixing the cylinder assembly (2), wherein the cylinder assembly (2) is positioned and fixed between the positioning tool (6) and the clamping mechanism (7); A guide sleeve tightening system, the guide sleeve tightening system comprising an XY horizontal moving assembly (8) for moving a tightening rotating assembly (3) and a cylinder rod positioning assembly (9), the tightening rotating assembly (3) and the cylinder rod positioning assembly (9) are both mounted on the top surface of the XY horizontal moving assembly (8), the XY horizontal moving assembly (8) drives the tightening rotating assembly (3) and the cylinder rod positioning assembly (9) to approach the guide sleeve (1) and install the guide sleeve (1) on the end of the cylinder assembly (2) through the tightening rotating assembly (3); The tightening rotation assembly (3) comprises a rotation assembly and a limit assembly, the rotation assembly comprises a support frame (31), a motor reducer (32), a driving gear (33) and a driven gear (34), one side of the support frame (31) is fixedly mounted with the motor reducer (32) by screws, the output shaft of the motor reducer (32) is connected with an internal key of the driving gear (33), and the side wall of the driving gear (33) is meshedly connected with the driven gear (34); The limit assembly comprises an electric actuator (35), a fixing ring (36), a rigid pin (37) and a stopper (38); the side wall of the fixing ring (36) is fixed to the side wall of the support frame (31) through a connecting rod; the electric actuator (35) is installed on one side wall of the fixing ring (36); the execution shaft of the electric actuator (35) is installed with one end of the rigid pin (37) through a transmission rod; the stopper (38) is fixedly installed on the other side wall of the fixing ring (36); the rigid pin (37) is slidably connected to the inside of the stopper (38); and the side wall of the stopper (38) contacts the side wall of the guide sleeve (1) away from the cylinder assembly (2).

2. The automatic assembly device for a hydraulic cylinder guide sleeve according to claim 1, characterized in that: The positioning tool (6) includes a first workbench (61), a first positioning pin (62), a lower clamping plate (63) and a lower V-shaped block (64), wherein the first positioning pin (62) is fixedly mounted on the top surface of the first workbench (61), and the side wall of the first positioning pin (62) is sleeved with the tail of the cylinder assembly (2); the lower clamping plate (63) is fixedly mounted on the first workbench (61) by screws, and the lower V-shaped block (64) is arranged on the top surface of the lower clamping plate (63), and the bottom of the cylinder assembly (2) is placed in the V-shaped groove of the lower V-shaped block (64).

3. The automatic assembly device for a hydraulic cylinder guide sleeve according to claim 2 is characterized in that: The clamping mechanism (7) comprises a first cylinder (71), a mounting seat (72), an upper clamping plate (73) and an upper V-shaped block (74); the telescopic shaft of the first cylinder (71) is fixedly mounted on the bottom of the mounting seat (72); the side wall end of the mounting seat (72) is fixedly mounted on the upper clamping plate (73); the upper V-shaped block (74) is arranged on the bottom surface of the upper clamping plate (73); the top of the cylinder assembly (2) is placed in the V-shaped groove of the upper clamping plate (73); and the first cylinder (71) is driven to move up and down above the lower clamping plate (63) through the mounting seat (72).

4. The automatic assembly device for a hydraulic cylinder guide sleeve according to claim 1, characterized in that: The XY horizontal moving assembly (8) comprises an X-moving assembly, a Y-moving assembly and a second workbench (81), wherein the Y-moving assembly is installed above the X-moving assembly, and the X-moving assembly is installed on the top surface of the second workbench (81).

5. The automatic assembly device for a hydraulic cylinder guide sleeve according to claim 4 is characterized in that: The X-axis moving assembly comprises a first guide rail (82), a first servo motor (83) and a first moving seat (84); the first guide rail (82) is respectively mounted on both sides of the top surface of the second workbench (81); the first servo motor (83) is mounted on one side of the second workbench (81) through a fixing plate; the output shaft of the first servo motor (83) is fixedly mounted on one end of a screw rod; and the interior of the first moving seat (84) is threadedly connected to the side wall of the screw rod.

6. The automatic assembly device for a hydraulic cylinder guide sleeve according to claim 5, characterized in that: The Y-axis moving assembly comprises an X-axis moving plate (85), a second guide rail (86), a second servo motor (87), a second moving seat (88) and a Y-axis moving plate (89); the X-axis moving plate (85) is fixedly mounted on the top surface of the first moving seat (84); the second guide rail (86) is fixedly mounted on the top surface of the X-axis moving plate (85) by screws; one side of the X-axis moving plate (85) is fixedly mounted on the second servo motor (87) by a fixing plate; the output shaft of the second servo motor (87) is fixedly mounted on the end of the lead screw; the interior of the second moving seat (88) is threadedly connected to the side wall of the lead screw; and the Y-axis moving plate (89) is mounted on the top surface of the second moving seat (88).

7. The automatic assembly device for a hydraulic cylinder guide sleeve according to claim 1, characterized in that: The cylinder rod positioning assembly (9) comprises a mounting frame (91), a second cylinder (92) and a second positioning pin (93); the mounting frame (91) is fixedly mounted on the top surface of the Y-axis movable plate (89) by means of screws; the second cylinder (92) is mounted on the side wall of the mounting frame (91); the telescopic shaft of the second cylinder (92) is fixedly connected to a connecting plate; and the second positioning pin (93) is mounted on the connecting plate.

8. The automatic assembly device for a hydraulic cylinder guide sleeve according to claim 1, characterized in that: One side of the guide sleeve tightening system is also provided with an assembly position accuracy control device (5) for detecting the installation position of the guide sleeve. The assembly position accuracy control device (5) comprises an adjustable mechanical arm and a camera for visual detection. The camera shooting angle is located on one side of the guide sleeve (1).

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