Oil seal press-fitting equipment and method

Abstract

The present invention provides an oil seal pressing device and method, the oil seal pressing device comprising: a support frame, which is arranged on a support base surface to form an accommodating space, and a pressing station is arranged in the accommodating space; a positioning mechanism, which is installed on the support frame and comprises a plurality of positioning pins corresponding to a plurality of pin holes on an engine, and the position of each positioning pin is adjustably set according to the model of the engine; two robots, which are arranged on the support base surface at intervals to clamp and move two pressing tools respectively, so as to respectively disassemble and assemble the two pressing tools, and each robot selects a corresponding pressing tool model according to the model of the engine; two pressing mechanisms, which are both installed on the support frame and are respectively located on opposite sides of the pressing station, and each pressing mechanism selects a corresponding pressing program according to the model of the engine to promote the movement of the corresponding pressing tool, so as to solve the problem in the prior art that one pneumatic pressing machine can only press one model of oil seal for an engine.

Description

Technical Field

[0001] The present invention relates to the technical field of engine oil seal press-fitting, and in particular to an oil seal press-fitting device and method. Background Art

[0002] With the rapid development of the automobile industry, the engine is the heart of the car, and its performance determines the car's ride comfort, fuel economy, exhaust emission standards, etc. As a key component of the engine, the engine oil seal is corroded by oil for a long time and is subjected to high pressure and vibration of the lubrication system. Therefore, the oil seal has high requirements for oil resistance, temperature resistance, wear resistance and sealing.

[0003] At present, the press-fitting process of engine oil seals mainly uses jigs and pneumatic press-fitting machines for press-fitting, which has the following problems:

[0004] (1) A pneumatic press can only press the oil seal of one type of engine, and the pneumatic press has poor stability and low repeatability, and cannot ensure that the oil seal is pressed flat;

[0005] (2) Before pressing the oil seal, grease is applied between the oil seal and the workpiece. The fit between the oil seal and the workpiece is poor, and it cannot be guaranteed that the oil seal and the workpiece fit without gaps.

[0006] (3) After the oil seal is pressed, it is necessary to manually inspect and judge the flatness, height difference and other parameters of the oil seal, which is inefficient and has poor consistency;

[0007] (4) After the oil seal is pressed, it needs to be cleaned manually, which is inefficient and labor-intensive.

[0008] Therefore, there is an urgent need for a high-precision, high-efficiency engine oil seal flexible assembly equipment to improve the stability, efficiency and consistency of engine oil seal press-fitting. Summary of the invention

[0009] The main purpose of the present invention is to provide an oil seal press-fitting device and method to solve the problem in the prior art that one pneumatic press-fitting machine can only press-fit one type of oil seal for an engine.

[0010] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided an oil seal pressing device, comprising: a support frame, the support frame is arranged on a support base surface to enclose a receiving space with the support base surface, and a pressing station for placing an engine is arranged in the receiving space; a positioning mechanism, the positioning mechanism is installed on the support frame, the positioning mechanism includes a plurality of positioning pins, and the plurality of positioning pins are arranged one-to-one with a plurality of pin holes on the engine, and the position of each positioning pin is adjustably set according to the model of the engine; two robots, the two robots are arranged on the support base surface at intervals to clamp and move two pressing tools respectively, so as to respectively install the two pressing tools on the two ends of the crankshaft of the engine or remove them from the two ends of the crankshaft, and each robot selects the model of the corresponding pressing tool according to the model of the engine; two pressing mechanisms, the two pressing mechanisms are both installed on the support frame and are respectively located on opposite sides of the pressing station, each pressing mechanism selects a corresponding pressing procedure according to the model of the engine, and each pressing mechanism includes a pressing head that can move in a direction close to or away from the pressing station, so as to push the pressing tool located at the corresponding end of the crankshaft to move according to the corresponding pressing procedure.

[0011] Further, the pressing mechanism includes: a lifting component, which is arranged on a support frame, and at least a part of the lifting component is arranged to be liftable; a pressure head component, which is installed on the liftable part of the lifting component, and the pressure head component includes a pressure head; a pushing component, which is installed on the liftable part of the lifting component, and a pressure rod of the pushing component is movably arranged in a direction approaching or moving away from the pressing station to abut or separate from the body of the engine.

[0012] Furthermore, the lifting component includes a lifting drive cylinder and a mounting plate, the cylinder body of the lifting drive cylinder is connected to the support frame, and the driving rod of the lifting drive cylinder is connected to the mounting plate; the pressure head component also includes a pressure head driving cylinder, the cylinder body of the pressure head driving cylinder is installed on the mounting plate, and the driving rod of the pressure head driving cylinder is connected to the pressure head driving to drive the pressure head to move; the pushing component also includes a pressure rod driving cylinder, a collet and a gas-liquid booster cylinder, the cylinder body of the pressure rod driving cylinder is installed on the mounting plate, the driving rod of the pressure rod driving cylinder is connected to the pressure rod driving to drive the pressure rod to move, the collet sleeve is arranged outside the pressure rod, and the gas-liquid booster cylinder is connected to the collet to drive the collet to clamp or release the pressure rod.

[0013] Furthermore, the pressure head includes: a sleeve, a driving rod of the pressure head driving cylinder is drivingly connected to the sleeve; a central shaft, a first end of the central shaft is inserted into the central hole of the sleeve and is movably arranged in a direction close to or away from the bottom surface of the central hole; an elastic member, the elastic member is arranged in the sleeve and is located between the first end of the central shaft and the bottom surface of the central hole; a support plate, the support plate is sleeved outside the central shaft and has a clearance fit with the central shaft, the support plate is located at the end of the sleeve away from the mounting plate, and the support plate is provided with a mounting groove and a mounting plate located at the mounting plate An opening portion of the mounting groove away from the sleeve; a positioning plate, the positioning plate is located at the opening portion, the positioning plate is sleeved on the central axis to move with the central axis, and the positioning plate is arranged corresponding to the inner hole of the press-fitting tool; an alignment plate, the alignment plate is installed in the mounting groove and is spaced from the groove wall of the mounting groove, the alignment plate is sleeved outside the positioning plate, and one end of the alignment plate away from the groove bottom surface of the mounting groove is used to contact the press-fitting tool; a spherical washer combination, the spherical washer combination is arranged in the mounting groove and located between the alignment plate and the groove bottom surface of the mounting groove.

[0014] Furthermore, the pressing mechanism also includes a connecting plate, a guide rail and a slider, the connecting plate is installed on the mounting plate and is located on a side of the mounting plate close to the pressing station, the guide rail is installed on the connecting plate and extends along the movement direction of the pressing head, the slider is installed on the sleeve and is slidably connected to the guide rail; and / or a first annular flange is provided on the outer circumferential surface of the positioning plate, a second annular flange is provided on the inner wall surface of the alignment plate, the first annular flange is spaced apart from the inner wall surface of the alignment plate, the second annular flange is spaced apart from the outer circumferential surface of the positioning plate, the first annular flange is located on a side of the second annular flange close to the bottom surface of the mounting groove; and / or the spherical washer combination includes a first washer and a second washer, the first spherical surface of the first washer protrudes in a direction close to the second washer, the second spherical surface of the second washer is recessed in a direction away from the first washer, and the first spherical surface and the second spherical surface are arranged to cooperate with each other.

[0015] Furthermore, the positioning mechanism also includes: a mounting frame, the mounting frame is connected to the support frame; a plurality of drive components, the plurality of drive components are arranged on the mounting frame at intervals, the plurality of drive components are drive-connected to the plurality of positioning pins in a one-to-one correspondence, and each drive component is used to drive the corresponding positioning pin to move on the mounting frame.

[0016] Further, the oil seal pressing equipment includes: a positioning and lifting mechanism, which is arranged on a supporting base surface and located at a pressing station, and a conveying portion of the positioning and lifting mechanism is movably arranged in a direction parallel to the supporting base surface to carry and convey the engine; a positioning mechanism is arranged above the pressing station, and a lifting portion of the positioning and lifting mechanism is movably arranged to carry and move the conveying portion, so that a plurality of pin holes on the engine are plugged or separated from a plurality of positioning pins in a one-to-one correspondence; and / or a model identification mechanism, which is installed on a supporting frame and arranged toward the pressing station to read a label on the engine to be pressed at the pressing station and identify the model of the engine, so as to control the working state of the positioning mechanism and the two robots according to the detection result of the model identification mechanism; and / or a tool conveying mechanism, which is arranged on a supporting frame and at least a part of the tool conveying mechanism is movably arranged to carry and convey the pressing tool; and / or a tool placement rack, which is arranged on the supporting frame to place the pressing tool.

[0017] Furthermore, the oil seal pressing equipment includes a positioning and lifting mechanism, and the oil seal pressing equipment also includes: a transfer mechanism, the transfer mechanism is arranged on the supporting base surface and is located on one side of the supporting frame, the moving part of the transfer mechanism is movably arranged in a direction parallel to the supporting base surface to carry and move the engine from the positioning and lifting mechanism, the transfer mechanism includes a rotatable transfer part for carrying and rotating the moving part to move the engine to the rework area or the next workstation; two detection mechanisms, the two detection mechanisms are arranged on the transfer mechanism and are respectively located on the opposite sides of the transfer station to respectively detect the inner ring flatness, outer ring flatness and the height difference between the inner and outer rings of the two oil seals on the engine to control the working process of the transfer mechanism according to the detection results of the two detection mechanisms; a conveying mechanism, the conveying mechanism is arranged on the supporting base surface and is movably arranged between the positioning and lifting mechanism and the transfer mechanism to convey the engine from the positioning and lifting mechanism to the transfer mechanism.

[0018] Furthermore, the detection mechanism includes: a connecting frame, which is installed on the transfer mechanism; a rotating component, which is installed on the connecting frame, and the rotating part of the rotating component is rotatably arranged around a predetermined center line; a camera, which is installed on the rotating component, the camera is spaced apart from the predetermined center line, and the camera is arranged toward the transfer station to detect the corresponding oil seal; wherein the predetermined center line is colinear with the center line of the crankshaft.

[0019] According to another aspect of the present invention, there is provided an oil seal pressing method, which is applicable to the above-mentioned oil seal pressing equipment, and the oil seal pressing method comprises: model identification: when the engine to be pressed arrives at the pressing station of the oil seal pressing equipment, the engine model is identified; workpiece positioning: a plurality of positioning pins of the positioning mechanism of the oil seal pressing equipment change positions according to the engine model, so as to be plugged and connected with a plurality of pin holes on the engine in a one-to-one correspondence; tool installation: two robots of the oil seal pressing equipment respectively install two pressing tools at both ends of the crankshaft of the engine; tool pressing: the two pressing mechanisms of the oil seal pressing equipment select corresponding pressing programs according to the engine model to press the two pressing tools respectively; tool disassembly: after the pressing is completed, the two pressing mechanisms are reset, and the two robots respectively remove the two pressing tools.

[0020] Furthermore, after the press-fitting is completed, the oil seal press-fitting method also includes: result detection: when the press-fitted engine reaches the moving part of the transfer mechanism of the oil seal press-fitting equipment, the two detection mechanisms of the oil seal press-fitting equipment respectively detect the inner ring flatness, outer ring flatness and the height difference between the inner and outer rings of the two oil seals on the engine; result judgment: judge whether the detection results of the two detection mechanisms meet the press-fitting standards; when the detection results of the two detection mechanisms meet the press-fitting standards, the moving part moves the engine to the next workstation; when the detection results of the two detection mechanisms do not meet the press-fitting standards, the rotating part of the transfer mechanism rotates a predetermined angle, and the moving part moves the engine to the rework area.

[0021] Applying the technical solution of the present invention, the oil seal pressing equipment of the present invention comprises: a support frame, the support frame is arranged on the support base surface to form a receiving space with the support base surface, and a pressing station for placing the engine is arranged in the receiving space; a positioning mechanism, the positioning mechanism is installed on the support frame, the positioning mechanism comprises a plurality of positioning pins, the plurality of positioning pins are arranged one-to-one corresponding to the plurality of pin holes on the engine, and the position of each positioning pin is adjustably set according to the model of the engine; two robots, the two robots are arranged on the support base surface at intervals to clamp and move two pressing tools respectively, so as to respectively install the two pressing tools on the two ends of the crankshaft of the engine or remove them from the two ends of the crankshaft, and each robot selects the model of the corresponding pressing tool according to the model of the engine; two pressing mechanisms, the two pressing mechanisms are both installed on the support frame and are respectively located on opposite sides of the pressing station, each pressing mechanism selects a corresponding pressing procedure according to the model of the engine, and each pressing mechanism comprises a pressing head that can be moved in a direction close to or away from the pressing station, so as to push the pressing tool located at the corresponding end of the crankshaft to move according to the corresponding pressing procedure. In this way, the oil seal pressing equipment of the present invention solves the problem in the prior art that a pneumatic pressing machine can only press one type of oil seal for an engine by setting a support frame, a pressing station, a positioning mechanism, two robots and two pressing mechanisms, thereby improving the installation and disassembly efficiency of the pressing tooling, achieving the purpose of simultaneously pressing the front and rear ends of the crankshaft, integrating the front pressing station and the rear pressing station into one pressing station, saving the required layout space, ensuring the accuracy and safety of the pressing operation, and being able to significantly reduce the downtime on the production line in the automotive manufacturing industry, improve the overall production rhythm, reduce the safety risks caused by manual operation, and improve the safety of the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0023] Figure 1 A front view showing an embodiment of an oil seal press-fitting device according to the present invention is shown;

[0024] Figure 2 Shows Figure 1 The structural schematic diagram of the oil seal pressing equipment shown;

[0025] Figure 3 Shows Figure 1 A schematic structural diagram of a press-fitting mechanism of an oil seal press-fitting device shown;

[0026] Figure 4 Shows Figure 3 A schematic structural diagram of a pressing head component of a pressing mechanism shown;

[0027] Figure 5 Shows Figure 3 A schematic structural diagram of a push component of a press-fitting mechanism shown;

[0028] Figure 6 Shows Figure 1 A structural schematic diagram of a positioning mechanism of an oil seal press-fitting device shown;

[0029] Figure 7 Shows Figure 1 The structural schematic diagram of the detection mechanism of the oil seal press-fitting equipment shown;

[0030] Figure 8 Shows Figure 1 The structural schematic diagram of the front gripper of the front robot of the oil seal pressing equipment and various types of front pressing tooling;

[0031] Fig. 9 Shows Figure 1 The structural schematic diagram of the rear gripper of the rear robot of the oil seal press-fitting equipment and various types of rear press-fitting tooling;

[0032] Fig.10 Shows Fig. 9 A cross-sectional view of the rear press tooling shown;

[0033] Fig.11 A flow chart showing a first embodiment of an oil seal press-fitting method according to the present invention is shown;

[0034] Fig.12 A flow chart showing a second embodiment of the oil seal press-fitting method according to the present invention.

[0035] The above drawings include the following reference numerals:

[0036] 1. Support frame;

[0037] 2. Positioning mechanism; 21. Mounting frame; 22. Positioning pin; 23. Driving assembly;

[0038] 3. Robot; 31. Front robot; 32. Rear robot; 33. Front gripper; 34. Rear gripper;

[0039] 4. Press-fitting mechanism; 401. Front press-fitting mechanism; 402. Rear press-fitting mechanism;

[0040] 41. lifting component; 411. lifting drive cylinder; 412. mounting plate;

[0041] 42. Press head component; 421. Press head driving cylinder; 422. Press head; 4221. Sleeve; 4222. Center axis; 4223. Elastic member; 4224. Support plate; 4225. Positioning plate; 4226. Alignment plate; 4227. Spherical washer assembly; 4228. First annular flange; 4229. Second annular flange; 42210. First washer; 42211. Second washer; 42212. Limiting head;

[0042] 43. Pushing component; 431. Pressure rod driving cylinder; 432. Pressure rod; 433. Collet; 434. Gas-liquid booster cylinder;

[0043] 44. Connecting plate; 45. Guide rail; 46. Slider;

[0044] 5. Positioning lifting mechanism;

[0045] 6. Pressing station;

[0046] 7. Tooling conveying mechanism;

[0047] 8. Tooling rack;

[0048] 9. Transfer agency;

[0049] 10. Detection mechanism; 101. Connecting frame; 102. Rotating component; 103. Camera; 104. Front detection mechanism; 105. Rear detection mechanism;

[0050] 11. Conveying mechanism;

[0051] 100. Engine;

[0052] 200. Press-fitting tool; 210. Front press-fitting tool; 220. Rear press-fitting tool; 221. Rear press-fitting ring; 222. Abutment ring; 223. Positioning ring; 224. Contact end face; 225. Accommodating groove; 300. Oil seal press-fitting equipment. DETAILED DESCRIPTION

[0053] 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 invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0054] like Figures 1 to 10As shown, the present invention provides an oil seal press-fitting device 300, comprising: a support frame 1, the support frame 1 is arranged on a support base surface to enclose a receiving space with the support base surface, and a press-fitting station 6 for placing an engine 100 is arranged in the receiving space; a positioning mechanism 2, the positioning mechanism 2 is installed on the support frame 1, the positioning mechanism 2 includes a plurality of positioning pins 22, and the plurality of positioning pins 22 are arranged one by one corresponding to the plurality of pin holes on the engine 100, and the position of each positioning pin 22 is adjustable according to the model of the engine 100; two robots 3, the two robots 3 are arranged at intervals on the support base surface to clamp and move the two press-fitting tools 20 respectively 0, so as to respectively install two pressing tools 200 on the two ends of the crankshaft of the engine 100 or remove them from the two ends of the crankshaft, each robot 3 selects the corresponding model of the pressing tool 200 according to the model of the engine 100; two pressing mechanisms 4, the two pressing mechanisms 4 are both installed on the support frame 1 and are respectively located on the opposite sides of the pressing station 6, each pressing mechanism 4 selects a corresponding pressing procedure according to the model of the engine 100, and each pressing mechanism 4 includes a pressing head 422 that can move in a direction close to or away from the pressing station 6, so as to push the pressing tool 200 located at the corresponding end of the crankshaft to move according to the corresponding pressing procedure.

[0055] In this way, the oil seal pressing equipment 300 of the present invention solves the problem in the prior art that a pneumatic pressing machine can only press one type of oil seal for an engine by setting a support frame 1, a positioning mechanism 2, two robots 3 and two pressing mechanisms 4, improves the installation and disassembly efficiency of the pressing tool 200, and achieves the purpose of simultaneously pressing the front and rear ends of the crankshaft. The front pressing station and the rear pressing station are integrated into one pressing station, saving the required layout space, ensuring the accuracy and safety of the pressing operation, and can significantly reduce the downtime on the production line in the automotive manufacturing industry, improve the overall production rhythm, reduce the safety risks caused by manual operation, and improve the safety of the working environment.

[0056] The oil seal pressing device 300 of the present invention is not only suitable for the automobile manufacturing industry, but can also be widely used in various industrial manufacturing fields that require oil seal pressing, providing strong technical support for improving production efficiency, reducing production costs and improving product quality.

[0057] like Figure 1 and Figure 2 as well as Figures 8 to 10 As shown, the two pressing tools 200 are respectively a front pressing tool 210 and a rear pressing tool 220, wherein the front pressing tool 210 is used to be mounted on the front end of the crankshaft of the engine 100 to press-fit the front oil seal, and the rear pressing tool 220 is used to be mounted on the rear end of the crankshaft of the engine 100 to press-fit the rear oil seal.

[0058] Specifically, the front press-fitting tool 210 includes a front press-fitting ring for contacting the front oil seal; the rear press-fitting tool 220 includes a rear press-fitting ring 221, an abutment ring 222 and a positioning ring 223, the rear press-fitting ring 221 is sleeved outside the abutment ring 222 and is movably arranged along the direction of the center line of the abutment ring 222, the press-fitting end face of the rear press-fitting ring 221 on the side close to the rear oil seal is used to contact the rear oil seal, the contact end face 224 of the abutment ring 222 is used to abut against the end face of the crankshaft, the abutment ring 222 is sleeved outside the positioning ring 223 and is fixedly connected to the positioning ring 223, and the positioning ring 223 is used to be inserted into the inner hole of the crankshaft; wherein, the side of the rear press-fitting ring 221 close to the rear oil seal is provided with a receiving groove 225 for cooperating with the rear oil seal.

[0059] like Figure 1 and Figure 2 as well as Figures 8 to 10 As shown, the two robots 3 are respectively a front robot 31 and a rear robot 32 . The free end of the front robot 31 is provided with a front clamp 33 for clamping the front pressing tool 210 , and the free end of the rear robot 32 is provided with a rear clamp 34 for clamping the rear pressing tool 220 .

[0060] Specifically, the front robot 31 and the rear robot 32 are both six-axis collaborative robots.

[0061] like Figure 1 and Figure 2 As shown, the two pressing mechanisms 4 are respectively a front pressing mechanism 401 and a rear pressing mechanism 402 . The front pressing mechanism 401 is used to push the front pressing tool 210 to move, and the rear pressing mechanism 402 is used to push the rear pressing tool 220 to move.

[0062] like Figure 3 As shown, the pressing mechanism 4 includes: a lifting component 41, which is arranged on the support frame 1, and at least a part of the lifting component 41 is arranged to be liftable; a pressing head component 42, which is installed on the liftable part of the lifting component 41, and the pressing head component 42 includes a pressing head 422; a pushing component 43, which is installed on the liftable part of the lifting component 41, and a pressing rod 432 of the pushing component 43 is movably arranged in a direction close to or away from the pressing station 6 to abut or separate from the body of the engine 100.

[0063] In this way, the uniformity and stability of the pressing force on the oil seal can be ensured, reducing the phenomenon of oil seal failure and engine performance degradation caused by uneven pressing force, which is of great significance to improving the reliability of the engine and extending the service life of the engine.

[0064] like Figures 3 to 6As shown, the lifting component 41 includes a lifting drive cylinder 411 and a mounting plate 412, the cylinder body of the lifting drive cylinder 411 is connected to the support frame 1, and the driving rod of the lifting drive cylinder 411 is connected to the mounting plate 412; the pressure head component 42 also includes a pressure head driving cylinder 421, the cylinder body of the pressure head driving cylinder 421 is installed on the mounting plate 412, and the driving rod of the pressure head driving cylinder 421 is drivingly connected to the pressure head 422 to drive the pressure head 422 to move; the pushing component 43 also includes a pressure rod driving cylinder 431, a collet 433 and a gas-liquid booster cylinder 434, the cylinder body of the pressure rod driving cylinder 431 is installed on the mounting plate 412, the driving rod of the pressure rod driving cylinder 431 is drivingly connected to the pressure rod 432 to drive the pressure rod 432 to move, the collet 433 is sleeved outside the pressure rod 432, and the gas-liquid booster cylinder 434 is connected to the collet 433 to drive the collet 433 to clamp or release the pressure rod 432.

[0065] In this way, in the pushing component 43, the pressure rod driving cylinder 431 drives the pressure rod 432 to move and can adjust the position of the pressure rod 432 relative to the body of the engine 100. The gas-liquid booster cylinder 434 and the collet 433 utilize the principle of hydraulic filling and tightening to make the elastic thin-walled sleeve produce uniform radial deformation and generate axial friction force to achieve the clamping or release of the pressure rod 432, so that the pressure rod 432 can provide support for the body of the engine 100, offsetting the stability of the product caused by the pressure of the pressure head driving cylinder 421, and ensuring that the two pressure heads 422 can be pressed at the same time.

[0066] Optionally, the lifting drive cylinder 411, the pressure head drive cylinder 421 and the pressure rod drive cylinder 431 can all be pneumatic cylinders or electric cylinders.

[0067] Specifically, the pressure head driving cylinder 421 is a servo press. The servo press is a modular product that integrates a servo motor and a lead screw. It can not only convert the rotational motion of the servo motor into linear motion, but also convert the servo motor's best advantages of precise speed control, precise rotational speed control and precise torque control into precise speed control, precise position control and precise thrust control, thereby achieving high-precision linear motion. The servo press integrates force sensors and displacement sensors to accurately collect and control pressure and displacement, thereby ensuring motion accuracy.

[0068] The collet 433 of the present invention is a precision collet, which is a prototype of a clamping element that can transmit a large torque. It has a fast clamping and loosening speed and a compact structure. Under the action of liquid pressure, the sleeve of the precision collet undergoes elastic deformation, thereby locking and loosening the moving component (i.e., the pressure rod 432) over the entire circumference. The clamping is reliable and will not damage the locked surface of the moving component. Among them, the precision collet can generate a clamping force of 1.5T.

[0069] like Figure 5As shown, the pressure head 422 includes: a sleeve 4221, a driving rod of the pressure head driving cylinder 421 is drivingly connected to the sleeve 4221; a central shaft 4222, a first end of the central shaft 4222 is inserted into the central hole of the sleeve 4221 and is movably arranged in a direction close to or away from the bottom surface of the central hole; an elastic member 4223, the elastic member 4223 is arranged in the sleeve 4221 and is located between the first end of the central shaft 4222 and the bottom surface of the central hole; a support plate 4224, the support plate 4224 is sleeved outside the central shaft 4222 and has a clearance fit with the central shaft 4222, the support plate 4224 is located at the end of the sleeve 4221 away from the mounting plate 412, and the support plate 4224 is provided with a mounting groove and a position At the opening of the mounting groove on the side away from the sleeve 4221; a positioning plate 4225, the positioning plate 4225 is located at the opening, the positioning plate 4225 is sleeved on the central axis 4222 to move with the central axis 4222, and the positioning plate 4225 is arranged corresponding to the inner hole of the press-fitting tool 200; an alignment plate 4226, the alignment plate 4226 is installed in the mounting groove and is spaced apart from the groove wall of the mounting groove, the alignment plate 4226 is sleeved outside the positioning plate 4225, and one end of the alignment plate 4226 away from the groove bottom surface of the mounting groove is used to contact the press-fitting tool 200; a spherical washer assembly 4227, the spherical washer assembly 4227 is arranged in the mounting groove and located between the alignment plate 4226 and the groove bottom surface of the mounting groove.

[0070] The oil seal pressing device of the present invention can meet the requirements of pressing oil seals of engines of different sizes by providing a sleeve 4221 , a central shaft 4222 and an elastic member 4223 , and can also play a role in unlocking the floating function of the alignment plate 4226 .

[0071] In this way, the pressure head 422 of the pressing mechanism 4 of the oil seal pressing equipment of the present invention realizes automatic alignment and uniform transmission of pressure during the oil seal pressing process, eliminates pressing errors, can significantly improve the press-fitting pass rate of the oil seal, reduces rework and scrap caused by deviations in the pressing process, reduces production costs, improves economic benefits, and is compatible with mixed-line production of multiple models.

[0072] like Figure 5 As shown, the pressing mechanism 4 also includes a connecting plate 44, a guide rail 45 and a slider 46. The connecting plate 44 is installed on the mounting plate 412 and is located on the side of the mounting plate 412 close to the pressing station 6. The guide rail 45 is installed on the connecting plate 44 and extends along the movement direction of the pressing head 422. The slider 46 is installed on the sleeve 4221 and is slidably connected to the guide rail 45.

[0073] In this way, the pressing mechanism 4 of the oil seal pressing equipment of the present invention ensures the stability and accuracy of the movement of the pressing head 422 by setting the connecting plate 44, the guide rail 45 and the slider 46, which can improve the accuracy and efficiency of the pressing process. It is particularly suitable for high-precision, large-scale engine oil seal pressing operations, and provides a strong guarantee for improving the overall performance of the production line and product quality.

[0074] like Figure 5 As shown, a first annular flange 4228 is arranged on the outer peripheral surface of the positioning plate 4225, and a second annular flange 4229 is arranged on the inner wall surface of the alignment plate 4226, the first annular flange 4228 and the inner wall surface of the alignment plate 4226 are spaced apart, the second annular flange 4229 and the outer peripheral surface of the positioning plate 4225 are spaced apart, and the first annular flange 4228 is located on the side of the second annular flange 4229 close to the bottom surface of the groove of the mounting groove; and / or the spherical washer combination 4227 includes a first washer 42210 and a second washer 42211, the first spherical surface of the first washer 42210 protrudes in a direction close to the second washer 42211, and the second spherical surface of the second washer 42211 is recessed in a direction away from the first washer 42210, and the first spherical surface and the second spherical surface are arranged to cooperate with each other.

[0075] Specifically, the pressure head 422 further includes a limiting head 42212 , which is installed at the second end of the central shaft 4222 to limit the circumferential movement of the positioning disk 4225 to prevent the positioning disk 4225 from falling off the central shaft 4222 .

[0076] like Figure 6 As shown, the positioning mechanism 2 also includes: a mounting frame 21, which is connected to the support frame 1; a plurality of driving components 23, which are arranged on the mounting frame 21 at intervals, and the plurality of driving components 23 are driven and connected to the plurality of positioning pins 22 in a one-to-one correspondence, and each driving component 23 is used to drive the corresponding positioning pin 22 to move on the mounting frame 21.

[0077] In this way, the positioning mechanism 2 of the oil seal pressing equipment of the present invention drives the multiple positioning pins 22 to change their positions one by one through the multiple driving components 23, which can achieve fast and accurate positioning of engines of different models, ensure the pressing accuracy of the oil seal, and greatly improve the versatility and flexibility of the oil seal pressing equipment of the present invention. The oil seal pressing equipment of the present invention can be quickly switched between multiple production lines to meet the production needs of engines of different models. Especially for large-scale manufacturing enterprises that need to process multiple models of engines, this setting undoubtedly brings huge production flexibility and efficiency improvement.

[0078] Specifically, the positioning mechanism 2 includes two positioning pins 22 and two driving components 23 that are drivingly connected to the two positioning pins 22 in a one-to-one correspondence. The two positioning pins 22 are plugged into or separated from two pin holes on the engine in a one-to-one correspondence.

[0079] like Figure 1 and Figure 2 As shown, the oil seal press-fitting device 300 includes: a positioning and lifting mechanism 5, which is arranged on a supporting base and located at a press-fitting station 6, and a conveying portion of the positioning and lifting mechanism 5 is movably arranged in a direction parallel to the supporting base to carry and convey the engine 100; a positioning mechanism 2 is arranged above the press-fitting station 6, and a lifting portion of the positioning and lifting mechanism 5 is movably arranged to carry and move the conveying portion so that a plurality of pin holes on the engine 100 and a plurality of positioning pins 22 are plugged or separated one by one; and / or a model identification mechanism, which is installed on It is arranged on the support frame 1 and facing the pressing station 6, so as to read the label on the engine 100 to be pressed at the pressing station 6 and identify the model of the engine 100, so as to control the working status of the positioning mechanism 2 and the two robots 3 according to the detection result of the model identification mechanism; and / or a tool conveying mechanism 7, which is arranged on the support frame 1 and at least part of the tool conveying mechanism 7 is movably arranged to carry and convey the pressing tool 200; and / or a tool placement rack 8, which is arranged on the support frame 1 to place the pressing tool 200.

[0080] The positioning mechanism 2 of the oil seal pressing device of the present invention does not move in a direction perpendicular to the supporting base surface. By raising and lowering the conveying part through the lifting part of the positioning lifting mechanism 5, the engine 100 on the conveying part can be raised and lowered, so that the multiple pin holes of the engine 100 and the multiple positioning pins 22 are correspondingly sleeved on the multiple positioning pins 22 or pulled out from the multiple positioning pins 22, thereby realizing the positioning or release of the engine 100.

[0081] The model identification mechanism of the oil seal pressing equipment of the present invention includes an RFID scanner, which identifies the model of the engine 100 by automatically reading the RFID tag on the engine 100. The oil seal pressing equipment 300 controls the working process according to the scanning result of the RFID scanner, thereby realizing the intelligent operation of the oil seal pressing equipment 300, which can significantly improve the automation level of the engine production line, reduce manual participation, reduce production costs, and at the same time improve the production efficiency and quality of the engine.

[0082] Among them, RFID (Radio Frequency Identification), also known as wireless radio frequency identification, is a communication technology that can identify specific targets and read and write related data through radio signals without establishing mechanical or optical contact between the identification system and the specific target.

[0083] Specifically, the tooling conveying mechanism 7 is located on the side of the support frame 1 close to the rear pressing mechanism 402 for carrying and conveying the rear pressing tooling 220 , and the tooling placement rack 8 is located on the side of the support frame 1 close to the front pressing mechanism 401 for placing the front pressing tooling 210 .

[0084] The oil seal pressing equipment of the present invention can reduce the replacement time of the pressing tool 200 by providing a tool conveying mechanism 7 and a tool placement rack 8, thereby improving the continuity and stability of the engine production line. It is particularly suitable for a multi-variety, small-batch production mode that requires frequent tool replacement, and provides a more efficient and intelligent production solution for engine production.

[0085] like Figure 1 and Figure 2 As shown, the oil seal pressing device 300 includes a positioning and lifting mechanism 5, and the oil seal pressing device 300 also includes: a transfer mechanism 9, the transfer mechanism 9 is arranged on the supporting base and located on one side of the support frame 1, the moving part of the transfer mechanism 9 is movably arranged in a direction parallel to the supporting base to carry and move the engine 100 from the positioning and lifting mechanism 5, and the transfer mechanism 9 includes a rotatable transfer part for carrying and rotating the moving part so that the engine 100 moves to the rework area or the next station; two detection mechanisms 10, the two detection mechanisms 10 are arranged on the transfer mechanism 9 and are respectively located on the opposite sides of the transfer station to respectively detect the inner ring flatness, outer ring flatness and the height difference between the inner and outer rings of the two oil seals on the engine 100, so as to control the working process of the transfer mechanism 9 according to the detection results of the two detection mechanisms 10; a conveying mechanism 11, the conveying mechanism 11 is arranged on the supporting base and movably arranged between the positioning and lifting mechanism 5 and the transfer mechanism 9 to convey the engine 100 from the positioning and lifting mechanism 5 to the transfer mechanism 9.

[0086] The oil seal pressing equipment of the present invention further ensures the quality and accuracy of the oil seal pressing by providing a transfer mechanism 9 and two detection mechanisms 10, and realizes the automatic circulation and repair of the engine on the production line. In high-precision fields such as automobile manufacturing and aircraft engine manufacturing, this design can ensure that each engine is fully quality-tested and repaired as necessary, and can significantly reduce the oil seal pressing defect rate. It can also improve the quality standard of the final product through automated testing and repair processes, improve the performance and reliability of the engine, and reduce recalls and after-sales costs caused by quality problems.

[0087] Specifically, the two detection mechanisms 10 include a front detection mechanism 104 and a rear detection mechanism 105, and the front detection mechanism 104 and the rear detection mechanism 105 are respectively arranged corresponding to the front end and the rear end of the crankshaft of the engine 100. The front detection mechanism 104 is used to detect the inner ring flatness, outer ring flatness and the height difference between the inner and outer rings of the oil seal at the front end of the crankshaft of the engine 100, and the rear detection mechanism 105 is used to detect the inner ring flatness, outer ring flatness and the height difference between the inner and outer rings of the oil seal at the rear end of the crankshaft of the engine 100.

[0088] like Figure 7 As shown, the detection mechanism 10 includes: a connecting frame 101, which is installed on the transfer mechanism 9; a rotating component 102, which is installed on the connecting frame 101, and the rotating part of the rotating component 102 is rotatably arranged around a predetermined center line; a camera 103, which is installed on the rotating part, the camera 103 is spaced apart from the predetermined center line, and the camera 103 is arranged toward the transfer station to detect the corresponding oil seal; wherein the predetermined center line is colinear with the center line of the crankshaft.

[0089] In this way, the eight points in four directions of the inner and outer rings of the oil seal can be comprehensively tested online for flatness and height difference, achieving efficient and accurate testing of the oil seal, significantly improving the accuracy and efficiency of testing, reducing production delays and cost increases caused by testing errors, and providing strong support for improving product quality and production efficiency. In addition, the upload and binding of press-fitting data can be realized, which is traceable and ensures the controllability of the press-fitting effect of the oil seal.

[0090] Specifically, the camera 103 is a line scan camera.

[0091] like Fig.11 and Fig.12 The present invention further provides an oil seal press-fitting method, which is applicable to the above-mentioned oil seal press-fitting device 300, and the oil seal press-fitting method comprises: model identification: when the engine 100 to be press-fitted arrives at the press-fitting station 6 of the oil seal press-fitting device 300, the model of the engine 100 is identified; workpiece positioning: a plurality of positioning pins 22 of the positioning mechanism 2 of the oil seal press-fitting device 300 change positions according to the model of the engine 100, so as to be plugged and connected with a plurality of pin holes on the engine 100 in a one-to-one correspondence; tool installation: two robots 3 of the oil seal press-fitting device 300 respectively install two press-fitting tools 200 at both ends of the crankshaft of the engine 100; tool pressing: the two press-fitting mechanisms 4 of the oil seal press-fitting device 300 select corresponding press-fitting procedures according to the model of the engine 100 to press-fit the two press-fitting tools 200 respectively; tool disassembly: after the press-fitting is completed, the two press-fitting mechanisms 4 are reset, and the two robots 3 respectively disassemble the two press-fitting tools 200.

[0092] like Fig.12It is shown that after the press-fitting is completed, the oil seal press-fitting method also includes: result detection: when the press-fitted engine 100 reaches the moving part of the transfer mechanism 9 of the oil seal press-fitting equipment 300, the two detection mechanisms 10 of the oil seal press-fitting equipment 300 respectively detect the inner ring flatness, outer ring flatness and the height difference between the inner and outer rings of the two oil seals on the engine 100; result judgment: judge whether the detection results of the two detection mechanisms 10 meet the press-fitting standards; when the detection results of the two detection mechanisms 10 meet the press-fitting standards, the moving part moves the engine 100 to the next workstation; when the detection results of the two detection mechanisms 10 do not meet the press-fitting standards, the rotating part of the transfer mechanism 9 rotates a predetermined angle, and the moving part moves the engine 100 to the rework area.

[0093] In this way, the problem that the front and rear oil seal pressing equipment in the prior art press-fits the front oil seal and the rear oil seal separately, which requires a large space, has a serious deviation in pressing accuracy, and presents a great quality risk is solved. The problem that the means of manual random inspection of oil seal pressing in the prior art is low in efficiency, low in accuracy, and has no traceability is solved.

[0094] The oil seal press-fitting method of the present invention is specifically as follows:

[0095] S1. Model identification: Before the engine 100 arrives at the pressing station 6, the previous station has pre-installed the rear oil seal and the front oil seal on both ends of the crankshaft. After the engine 100 and its tray arrive at the pressing station 6, the model of the engine 100 is first identified by reading the RFID tag on the product tray, and then the lifting components 41 of the two pressing mechanisms 4 adjust the heights of the corresponding pressing head components 42 and the pushing components 43 according to the model of the engine 100. The front robot 31 drives the front clamp 33 to move to grab the front pressing tooling 210 of the corresponding model according to the model of the engine 100, and the rear robot 32 drives the rear clamp 34 to move to grab the rear pressing tooling 220 of the corresponding model according to the model of the engine 100.

[0096] S2. Workpiece positioning: First, the two driving components 23 of the positioning mechanism 2 respectively drive the two positioning pins 22 to change their positions, and then the lifting part of the positioning lifting mechanism 5 lifts the conveying part, the pallet and the engine 100 together, so that the two pin holes on the engine 100 are plugged and connected with the two positioning pins 22 of the positioning mechanism 2 in a one-to-one correspondence.

[0097] S3, tool installation: the front robot 31 installs the front pressing tool 210 at the front end of the crankshaft, and the rear robot 32 installs the rear pressing tool 220 at the rear end of the crankshaft.

[0098] S4, tooling press fitting: first, the pressure rods 432 of the abutting parts 43 of the two press fitting mechanisms 4 are moved to abut against the body of the engine 100, and then the collets 433 of the abutting parts 43 of the two press fitting mechanisms 4 clamp the pressure rods 432; then the pressing heads 422 of the two press fitting mechanisms 4 start to press fit, and the alignment disk 4226 of the pressing head 422 is in direct contact with the press fitting tooling 200, and its contact state is self-aligned by the spherical washer combination 4227, and the floating clearance is 2mm; when the press fitting is completed, each mechanism is reset.

[0099] S5. Tool disassembly: the front robot 31 places the front pressing tool 210 on the tool placement rack 8 from the front end of the crankshaft, and the rear robot 32 places the rear pressing tool 220 on the tool conveying mechanism 7 from the rear end of the crankshaft. The pressing process is now completed.

[0100] S6. Result detection: After the press-fitting is completed, the engine 100 is transported to the moving part of the transfer mechanism 9, and the two detection mechanisms 10 respectively detect the press-fitting effects of the two oil seals through actual detection.

[0101] S7. Result judgment: judge whether the detection results of the two detection mechanisms 10 meet the press-fitting standards; when the detection results of the two detection mechanisms 10 meet the press-fitting standards, the moving part moves the engine 100 to the next workstation; when the detection results of the two detection mechanisms 10 do not meet the press-fitting standards, the rotating part of the transfer mechanism 9 rotates 90 degrees, and the moving part moves the engine 100 to the rework area.

[0102] Among them, the pressing standard is the indicator on the drawing given when designing the engine.

[0103] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0104] The oil seal press-fitting device 300 of the present invention comprises: a support frame 1, the support frame 1 is arranged on a support base surface to enclose a receiving space with the support base surface, and a press-fitting station 6 for placing the engine 100 is arranged in the receiving space; a positioning mechanism 2, the positioning mechanism 2 is installed on the support frame 1, the positioning mechanism 2 comprises a plurality of positioning pins 22, and the plurality of positioning pins 22 are arranged one by one corresponding to the plurality of pin holes on the engine 100, and the position of each positioning pin 22 is adjustable according to the model of the engine 100; two robots 3, the two robots 3 are arranged at intervals on the support base surface to clamp and move the two press-fitting tools 200 respectively, so as to Two pressing tools 200 are respectively installed at the two ends of the crankshaft of the engine 100 or removed from the two ends of the crankshaft, and each robot 3 selects the corresponding model of the pressing tool 200 according to the model of the engine 100; two pressing mechanisms 4, both pressing mechanisms 4 are installed on the support frame 1 and are respectively located on the opposite sides of the pressing station 6, and each pressing mechanism 4 selects a corresponding pressing procedure according to the model of the engine 100. Each pressing mechanism 4 includes a pressing head 422 that can be moved in a direction close to or away from the pressing station 6 to push the pressing tool 200 located at the corresponding end of the crankshaft to move according to the corresponding pressing procedure. In this way, the oil seal pressing equipment 300 of the present invention solves the problem in the prior art that a pneumatic pressing machine can only press one type of oil seal for an engine by setting a support frame 1, a positioning mechanism 2, two robots 3 and two pressing mechanisms 4, improves the installation and disassembly efficiency of the pressing tool 200, and achieves the purpose of simultaneously pressing the front and rear ends of the crankshaft. The front pressing station and the rear pressing station are integrated into one pressing station, saving the required layout space, ensuring the accuracy and safety of the pressing operation, and can significantly reduce the downtime on the production line in the automotive manufacturing industry, improve the overall production rhythm, reduce the safety risks caused by manual operation, and improve the safety of the working environment.

[0105] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0106] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0107] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0108] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0109] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0110] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An oil seal press-fitting device, characterized in that: include: A support frame (1), the support frame (1) being arranged on a support base surface to enclose a receiving space with the support base surface, wherein a press-fitting station (6) for placing an engine (100) is arranged in the receiving space; A positioning mechanism (2), the positioning mechanism (2) being mounted on the support frame (1); the positioning mechanism (2) comprising a plurality of positioning pins (22); the plurality of positioning pins (22) being arranged in one-to-one correspondence with a plurality of pin holes on the engine (100); the position of each positioning pin (22) being adjustably arranged according to the model of the engine (100); two robots (3), the two robots (3) being arranged at intervals on the supporting base surface and respectively used to clamp and move two press fittings (200) so as to respectively install the two press fittings (200) on the two ends of the crankshaft of the engine (100) or remove the two press fittings (200) from the two ends of the crankshaft, each of the robots (3) selecting a corresponding model of the press fittings (200) according to the model of the engine (100); Two pressing mechanisms (4), the two pressing mechanisms (4) are both mounted on the support frame (1) and are respectively located on opposite sides of the pressing station (6), each of the pressing mechanisms (4) selects a corresponding pressing procedure according to the model of the engine (100), and each of the pressing mechanisms (4) comprises a pressing head (422) that can move in a direction approaching or away from the pressing station (6) so as to push the pressing tool (200) located at a corresponding end of the crankshaft to move according to the corresponding pressing procedure; The press-fitting mechanism (4) comprises: A lifting component (41), the lifting component (41) being arranged on the support frame (1), and at least a part of the lifting component (41) being arranged to be liftable; A pressing head component (42), the pressing head component (42) being mounted on a liftable portion of the lifting component (41), the pressing head component (42) comprising the pressing head (422); A pushing component (43), the pushing component (43) being mounted on a liftable portion of the lifting component (41), the pressing rod (432) of the pushing component (43) being movably arranged in a direction approaching or moving away from the pressing station (6) so as to abut against or separate from the body of the engine (100); The lifting component (41) comprises a lifting drive cylinder (411) and a mounting plate (412); a cylinder body of the lifting drive cylinder (411) is connected to the support frame (1); and a drive rod of the lifting drive cylinder (411) is connected to the mounting plate (412); The pressing head component (42) further comprises a pressing head driving cylinder (421), the cylinder body of the pressing head driving cylinder (421) being mounted on the mounting plate (412), and the driving rod of the pressing head driving cylinder (421) being drivingly connected to the pressing head (422) to drive the pressing head (422) to move; The pushing component (43) further comprises a pressure rod driving cylinder (431), a collet (433) and a gas-liquid boosting cylinder (434); the cylinder body of the pressure rod driving cylinder (431) is mounted on the mounting plate (412); the driving rod of the pressure rod driving cylinder (431) is drivingly connected to the pressure rod (432) to drive the pressure rod (432) to move; the collet (433) is sleeved outside the pressure rod (432); and the gas-liquid boosting cylinder (434) is connected to the collet (433) to drive the collet (433) to clamp or release the pressure rod (432); The pressure head (422) comprises: A sleeve (4221), wherein a driving rod of the pressure head driving cylinder (421) is drivingly connected to the sleeve (4221); A central shaft (4222), wherein a first end of the central shaft (4222) is inserted into the central hole of the sleeve (4221) and is movably arranged in a direction approaching or moving away from a bottom surface of the central hole; an elastic member (4223), the elastic member (4223) being arranged in the sleeve (4221) and located between the first end of the central axis (4222) and the bottom surface of the central hole; a support plate (4224), the support plate (4224) being sleeved outside the central shaft (4222) and being in clearance fit with the central shaft (4222), the support plate (4224) being located at an end of the sleeve (4221) away from the mounting plate (412), the support plate (4224) being provided with a mounting groove and an opening portion located at a side of the mounting groove away from the sleeve (4221); a positioning plate (4225), the positioning plate (4225) being located at the opening, the positioning plate (4225) being sleeved on the central shaft (4222) to move along with the central shaft (4222), the positioning plate (4225) being arranged corresponding to the inner hole of the press-fitting tool (200); an alignment plate (4226), the alignment plate (4226) being installed in the installation groove and spaced apart from the groove wall surface of the installation groove, the alignment plate (4226) being sleeved outside the positioning plate (4225), and an end of the alignment plate (4226) away from the groove bottom surface of the installation groove being used for contacting the press-fitting tool (200); A spherical washer assembly (4227), wherein the spherical washer assembly (4227) is arranged in the installation groove and is located between the alignment plate (4226) and the bottom surface of the installation groove.

2. The oil seal press-fitting equipment according to claim 1, characterized in that: The press-fitting mechanism (4) further comprises a connecting plate (44), a guide rail (45) and a sliding block (46); the connecting plate (44) is mounted on the mounting plate (412) and is located on a side of the mounting plate (412) close to the press-fitting station (6); the guide rail (45) is mounted on the connecting plate (44) and extends along a movement direction of the pressing head (422); the sliding block (46) is mounted on the sleeve (4221) and is slidably connected to the guide rail (45); and / or A first annular flange (4228) is provided on the outer peripheral surface of the positioning plate (4225), and a second annular flange (4229) is provided on the inner wall surface of the alignment plate (4226), the first annular flange (4228) and the inner wall surface of the alignment plate (4226) are spaced apart, and the second annular flange (4229) and the outer peripheral surface of the positioning plate (4225) are spaced apart, and the first annular flange (4228) is located on a side of the second annular flange (4229) close to the bottom surface of the mounting groove; and / or The spherical washer combination (4227) comprises a first washer (42210) and a second washer (42211), wherein the first spherical surface of the first washer (42210) protrudes in a direction close to the second washer (42211), and the second spherical surface of the second washer (42211) is recessed in a direction away from the first washer (42210), and the first spherical surface and the second spherical surface are arranged to cooperate with each other.

3. The oil seal press-fitting equipment according to claim 1 or 2, characterized in that: The positioning mechanism (2) further comprises: A mounting frame (21), the mounting frame (21) being connected to the supporting frame (1); A plurality of drive assemblies (23), the plurality of drive assemblies (23) being arranged at intervals on the mounting frame (21), the plurality of drive assemblies (23) being drivingly connected to the plurality of positioning pins (22) in a one-to-one correspondence, and each of the drive assemblies (23) being used to drive a corresponding positioning pin (22) to move on the mounting frame (21).

4. The oil seal press-fitting equipment according to claim 1 or 2, characterized in that: The oil seal pressing equipment comprises: A positioning and lifting mechanism (5), the positioning and lifting mechanism (5) being arranged on the supporting base surface and located at the pressing station (6), the conveying portion of the positioning and lifting mechanism (5) being movably arranged in a direction parallel to the supporting base surface so as to carry and convey the engine (100); the positioning mechanism (2) being arranged above the pressing station (6), the lifting portion of the positioning and lifting mechanism (5) being movably arranged so as to carry and move the conveying portion so as to enable the plurality of pin holes on the engine (100) to be plugged in or separated in a one-to-one correspondence with the plurality of positioning pins (22); and / or a model identification mechanism, the model identification mechanism being mounted on the support frame (1) and disposed toward the press-fitting station (6), and being used to read a label on the engine (100) to be press-fitted at the press-fitting station (6) and to identify the model of the engine (100), so as to control the working states of the positioning mechanism (2) and the two robots (3) according to the detection result of the model identification mechanism; and / or a tool conveying mechanism (7), the tool conveying mechanism (7) being arranged on the support frame (1) and at least a part of the tool conveying mechanism (7) being movably arranged, so as to carry and convey the pressing tool (200); and / or A tool placement rack (8), wherein the tool placement rack (8) is arranged on the support frame (1) and is used for placing the press-fit tool (200).

5. The oil seal press-fitting equipment according to claim 4, characterized in that: The oil seal press-fitting device comprises the positioning and lifting mechanism (5), and the oil seal press-fitting device further comprises: A transfer mechanism (9), the transfer mechanism (9) being arranged on the support base and located on one side of the support frame (1), the moving part of the transfer mechanism (9) being movably arranged in a direction parallel to the support base to carry and move the engine (100) from the positioning and lifting mechanism (5), the transfer mechanism (9) comprising a rotatable transfer part for carrying and rotating the moving part so that the engine (100) moves to a rework area or a next workstation; two detection mechanisms (10), the two detection mechanisms (10) being arranged on the transfer mechanism (9) and respectively located on opposite sides of the transfer station, and being used to respectively detect the inner ring flatness, outer ring flatness and the height difference between the inner and outer rings of two oil seals on the engine (100), so as to control the working process of the transfer mechanism (9) according to the detection results of the two detection mechanisms (10); A conveying mechanism (11) is arranged on the supporting base surface and is movably arranged between the positioning and lifting mechanism (5) and the transfer mechanism (9) to transfer the engine (100) from the positioning and lifting mechanism (5) to the transfer mechanism (9).

6. The oil seal press-fitting equipment according to claim 5, characterized in that: The detection mechanism (10) comprises: A connecting frame (101), the connecting frame (101) being mounted on the transfer mechanism (9); A rotating component (102), the rotating component (102) being mounted on the connecting frame (101), and the rotating part of the rotating component (102) being rotatably arranged around a predetermined center line; A camera (103), the camera (103) being mounted on the rotating member, the camera (103) being spaced apart from the predetermined center line, and the camera (103) being disposed toward the transfer station to detect the corresponding oil seal; Wherein, the predetermined center line is colinear with the center line of the crankshaft.

7. An oil seal press-fitting method, characterized in that: The oil seal press-fitting device according to any one of claims 1 to 6, wherein the oil seal press-fitting method comprises: Model identification: when the engine (100) to be press-assembled arrives at the press-assembly station (6) of the oil seal press-assembly equipment, the model of the engine (100) is identified; Workpiece positioning: a plurality of positioning pins (22) of the positioning mechanism (2) of the oil seal press-fitting device change positions according to the model of the engine (100) so as to be plugged and connected with a plurality of pin holes on the engine (100) in a one-to-one correspondence; Tool installation: two robots (3) of the oil seal press-fitting equipment respectively install the two press-fitting tools (200) on both ends of the crankshaft of the engine (100); Tool press-fitting: two press-fitting mechanisms (4) of the oil seal press-fitting equipment select corresponding press-fitting procedures according to the model of the engine (100) to press-fit the two press-fitting tools (200) respectively; Tool disassembly: After the press-fitting is completed, the two press-fitting mechanisms (4) are reset, and the two robots (3) respectively disassemble the two press-fitting tools (200).

8. The oil seal press-fitting method according to claim 7, characterized in that: After the press-fitting is completed, the oil seal press-fitting method further comprises: Result detection: when the press-assembled engine (100) reaches the moving part of the transfer mechanism (9) of the oil seal press-assembly equipment, the two detection mechanisms (10) of the oil seal press-assembly equipment respectively detect the inner ring flatness, outer ring flatness and the height difference between the inner and outer rings of the two oil seals on the engine (100); Result judgment: judging whether the detection results of the two detection mechanisms (10) meet the press-fitting standard; when the detection results of the two detection mechanisms (10) meet the press-fitting standard, the moving part moves the engine (100) to the next workstation; when the detection results of the two detection mechanisms (10) do not meet the press-fitting standard, the rotating part of the transfer mechanism (9) rotates by a predetermined angle, and the moving part moves the engine (100) to a rework area.

Images