A device for on-line press fitting of positioning pins for engine oil pump assembly

Abstract

The utility model discloses a device for engine oil pump assembly online pressure equipment positioning pin, specifically related to engine oil pump assembly technical field, include: bench, be provided with frame on the bench, vibration disc feeding mechanism, vibration disc feeding mechanism installs on the bench, take material mechanism, take material mechanism installs on the bench, base plate, base plate installs on the bottom board of frame, clamp mechanism, clamp mechanism sliding installation is on the base plate, install second servo module group of driving clamp mechanism mechanism on the base plate moves, press mechanism, press mechanism installs on the top of frame. The utility model discloses through the cooperation control and modularization design of multiple mechanisms, has realized the process automation of engine oil pump positioning pin pressure equipment, from the feeding, taking material, positioning to pressure equipment all need not manual operation, has improved positioning pin pressure equipment's precision, efficiency and reliability significantly, has solved the problem of the inaccuracy of traditional pressure equipment process, low efficiency, big error.

Description

Technical Field

[0001] This utility model relates to the field of engine oil pump assembly technology, specifically to a device for online press-fitting of positioning pins for engine oil pump assembly. Background Technology

[0002] The engine oil pump is a lightweight and compact pump. The locating pin is a crucial component of the oil pump. Its main function is to fix and position the pump head, ensuring stable and accurate operation during operation. The press-fitting methods for the locating pins of engine oil pump components vary, and the aesthetics and efficiency of the press-fitting are key factors affecting performance. Furthermore, rapid and automated monitoring of the locating pin press-fitting process and handling of any defects during final assembly play a significant role in improving the quality of the oil pump.

[0003] Currently, in the assembly process of existing oil pumps, the positioning pins of the pump parts are mostly pressed manually. Manual pressing is highly arbitrary, difficult to control, inefficient, and prone to errors. Furthermore, it may result in leakage or misjudgment during testing. Utility Model Content

[0004] The purpose of this invention is to provide a device for online press-fitting of positioning pins for engine oil pump assembly, in order to solve the above-mentioned deficiencies in the technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for online press-fitting of locating pins for engine oil pump assembly, comprising:

[0006] A test stand, on which a control system is installed, and on which a rack is provided;

[0007] A vibratory feeder feeding mechanism, wherein the vibratory feeder feeding mechanism is mounted on a frame;

[0008] A material handling mechanism, which is mounted on a frame;

[0009] A substrate, which is mounted on the bottom plate of the frame and is located to the side of the vibratory feeder mechanism;

[0010] A clamping mechanism is slidably mounted on a base plate, and a second servo module for driving the clamping mechanism to move is mounted on the base plate;

[0011] A press mechanism, which is mounted on top of the frame.

[0012] Preferably, the material handling mechanism includes a gantry, an upper stiffening plate is slidably connected to the top front wall of the gantry, a first servo module for driving the upper stiffening plate to move is provided on the top of the gantry, a lower stiffening plate is slidably connected to the lower front side of the upper stiffening plate, a first pneumatic finger is installed at the bottom of the lower stiffening plate, a first electric cylinder is installed on the upper front side of the upper stiffening plate, the output end of the first electric cylinder is connected to the lower stiffening plate, the gantry is mounted on a platform, and the vibratory feeder mechanism is placed inside the gantry;

[0013] The upper stiffening plate is slidably mounted on the gantry, and the lower stiffening plate is slidably mounted on the upper stiffening plate. With the coordinated control of the first servo module and the first electric cylinder, high-precision material picking path planning is achieved, avoiding the risk of collision during the gripping process of the positioning pin.

[0014] Preferably, the control system is electrically connected to the vibratory feeder, the first servo module, the first pneumatic finger, and the first electric cylinder. The control system provides centralized control of the material handling process, ensuring the timing synchronization of the vibratory feeder's material supply, the first servo module's movement, and the first pneumatic finger's action, thereby reducing cycle delays caused by manual intervention.

[0015] Preferably, the frame is located in front of the gantry, and the rear of the base plate extends to the bottom of the gantry;

[0016] The clamping mechanism includes a clamping plate, on the upper left and right sides of the clamping plate, a single-acting hydraulic cylinder clamping assembly is installed, multiple contour blocks are installed on the upper side of the clamping plate, and straightening components are installed at both ends of the clamping plate near the second servo module.

[0017] The single-acting hydraulic cylinder clamping assembly and the second servo module are both electrically connected to the control system, and the output end of the second servo module is connected to the fixture plate.

[0018] The single-acting hydraulic cylinder clamping assembly and the contour block form a composite clamping mechanism, which is compatible with different models of oil pump housings. The straightening assembly can eliminate radial deviation before the locating pin is inserted, thereby improving the concentricity of the press fitting.

[0019] Preferably, the straightening assembly includes a cylinder, a second pneumatic finger, and a mounting plate. The mounting plate is connected to the side wall of the clamping plate. The second pneumatic finger is slidably mounted on the clamping plate. The cylinder is mounted on the mounting plate. The output end of the cylinder passes through the mounting plate and is connected to the second pneumatic finger. Both the cylinder and the second pneumatic finger are electrically connected to the control system.

[0020] The cylinder drives the second pneumatic finger to precisely position it along the slide rail, realizing the secondary posture correction of the positioning pin before pressing and solving the slight skew problem caused by the vibratory feeder.

[0021] Preferably, the press mechanism includes a second electric cylinder, which is mounted on the top plate of the frame. The telescopic end of the second electric cylinder passes through the top plate of the frame and is connected to a pressure plate. A floating joint is provided at the bottom of the pressure plate. A pressure sensor is connected between the floating joint and the pressure plate. A pressure head is connected to the bottom of the floating joint.

[0022] Both the second electric cylinder and the pressure sensor are electrically connected to the control system;

[0023] The combination design of the floating joint and pressure sensor can dynamically compensate for the positional deviation between the pressure head and the workpiece, preventing pressure overload caused by slight deformation of the workpiece.

[0024] Preferably, a support is installed on the side wall of the substrate, and a positioning pin sensor is installed on the support. The positioning pin sensor is electrically connected to the control system and monitors the feeding status in real time.

[0025] Preferably, the substrate is provided with two parallel first slide rails, and the bottom of the clamping plate is fixed with a first slide block at the position corresponding to the first slide rail. The first slide block is slidably mounted on the first slide rail, so that the clamping plate moves stably and will not deviate.

[0026] The clamp plate is provided with a second slide rail corresponding to the position of the second pneumatic finger, and a second slide block is installed at the bottom of the second pneumatic finger. The second slide block is slidably installed on the second slide rail, so that the second pneumatic finger moves stably and will not deviate.

[0027] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0028] Through multi-mechanism collaborative control and modular design, the process of press-fitting the engine oil pump positioning pin has been automated. From feeding, picking, positioning to press-fitting, no manual operation is required, which significantly improves the accuracy, efficiency and reliability of the positioning pin press-fitting and solves the problems of inaccurate positioning, low efficiency and large error in the traditional press-fitting process. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0030] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0031] Figure 2 This is a front view of the present invention after the support frame has been removed;

[0032] Figure 3 This is a partial schematic diagram of the present invention;

[0033] Figure 4 This is a schematic diagram showing the connection between the clamping mechanism and the straightening component of this utility model;

[0034] Figure 5 This is a schematic diagram showing the connection between the press mechanism and the frame of this utility model.

[0035] Explanation of reference numerals in the attached figures:

[0036] 10. Bench; 11. Control system; 12. Frame;

[0037] 20. Vibratory feeder feeding mechanism;

[0038] 30. Material handling mechanism; 31. Gantry; 32. Upper stiffening plate; 33. First servo module; 34. Lower stiffening plate; 35. First pneumatic finger; 36. First electric cylinder;

[0039] 40. Substrate; 41. Support; 42. Positioning pin sensor;

[0040] 50. Fixture mechanism; 51. Fixture plate; 52. Single-acting hydraulic cylinder clamping assembly; 53. Copying block;

[0041] 60. Second servo module;

[0042] 70. Press mechanism; 71. Second electric cylinder; 72. Press plate; 73. Floating joint; 74. Pressure sensor; 75. Press head;

[0043] 80. Straightening assembly; 81. Cylinder; 82. Second pneumatic finger; 83. Mounting plate. Detailed Implementation

[0044] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0045] This utility model provides, for example Figures 1 to 5 The device shown is for online press-fitting of locating pins for assembling engine oil pumps, comprising:

[0046] A test stand 10 is provided, a control system 11 is installed on the test stand 10, and a rack 12 is provided on the test stand 10.

[0047] Vibratory feeder feeding mechanism 20 is mounted on the frame 10;

[0048] Material handling mechanism 30 is mounted on the frame 10;

[0049] The substrate 40 is mounted on the bottom plate of the frame 12 and is located on the side of the vibratory feeder feeding mechanism 20.

[0050] A clamping mechanism 50 is slidably mounted on a base plate 40, and a second servo module 60 for driving the clamping mechanism 50 to move is mounted on the base plate 40.

[0051] Press mechanism 70 is mounted on top of frame 12.

[0052] The material handling mechanism 30 includes a gantry 31, an upper stiffening plate 32 is slidably connected to the top front wall of the gantry 31, a first servo module 33 is provided on the top of the gantry 31 to drive the upper stiffening plate 32 to move, a lower stiffening plate 34 is slidably connected to the lower front side of the upper stiffening plate 32, a first pneumatic finger 35 is installed at the bottom of the lower stiffening plate 34, a first electric cylinder 36 is installed on the upper front side of the upper stiffening plate 32, the output end of the first electric cylinder 36 is connected to the lower stiffening plate 34, the gantry 31 is mounted on the platform 10, and the vibratory feeder mechanism 20 is placed inside the gantry 31.

[0053] The upper stiffening plate 32 is slidably mounted on the gantry 31, and the lower stiffening plate 34 is slidably mounted on the upper stiffening plate 32. With the coordinated control of the first servo module 33 and the first electric cylinder 36, high-precision material picking path planning is achieved, avoiding the risk of collision during the gripping process of the positioning pin.

[0054] The control system 11 is electrically connected to the vibratory feeder 20, the first servo module 33, the first pneumatic finger 35 and the first electric cylinder 36. The control system 11 centrally controls the material handling process, ensuring that the timing of the vibratory feeder 20 feeding, the first servo module 33 moving and the first pneumatic finger 35 moving is synchronized, reducing the cycle delay caused by manual intervention.

[0055] The frame 12 is located in front of the gantry 31, and the rear of the substrate 40 extends to the bottom of the gantry 31;

[0056] The clamping mechanism 50 includes a clamping plate 51. A single-acting hydraulic cylinder clamping assembly 52 is installed on both the upper left and right sides of the clamping plate 51. Multiple contour blocks 53 are installed on the upper side of the clamping plate 51. A straightening assembly 80 is installed at both ends of the clamping plate 51 near the second servo module 60.

[0057] The single-acting hydraulic cylinder clamping assembly 52 and the second servo module 60 are both electrically connected to the control system 11, and the output end of the second servo module 60 is connected to the fixture plate 51.

[0058] The single-acting hydraulic cylinder clamping assembly 52 and the contour block 53 form a composite clamping mechanism, which is compatible with different models of oil pump housings. The straightening assembly 80 can eliminate radial deviation before the locating pin is inserted, thereby improving the concentricity of the press fitting.

[0059] The straightening assembly 80 includes a cylinder 81, a second pneumatic finger 82, and a mounting plate 83. The mounting plate 83 is connected to the side wall of the clamping plate 51. The second pneumatic finger 82 is slidably mounted on the clamping plate 51. The cylinder 81 is mounted on the mounting plate 83. The output end of the cylinder 81 passes through the mounting plate 83 and is connected to the second pneumatic finger 82. Both the cylinder 81 and the second pneumatic finger 82 are electrically connected to the control system 11.

[0060] Cylinder 81 drives the second pneumatic finger 82 to precisely position along the slide rail, realizing secondary posture correction of the positioning pin before pressing, and solving the slight skew problem caused by vibratory feeder feeding.

[0061] The press mechanism 70 includes a second electric cylinder 71, which is mounted on the top plate of the frame 12. The telescopic end of the second electric cylinder 71 passes through the top plate of the frame 12 and is connected to a pressure plate 72. A floating joint 73 is provided at the bottom of the pressure plate 72. A pressure sensor 74 is connected between the floating joint 73 and the pressure plate 72. A pressure head 75 is connected to the bottom of the floating joint 73.

[0062] The second electric cylinder 71 and the pressure sensor 74 are both electrically connected to the control system 11;

[0063] The combined design of the floating joint 73 and the pressure sensor 74 can dynamically compensate for the positional deviation between the pressure head 75 and the workpiece, preventing pressure overload caused by slight deformation of the workpiece.

[0064] A support 41 is mounted on the side wall of the substrate 40, and a positioning pin sensor 42 is mounted on the support 41. The positioning pin sensor 42 is electrically connected to the control system 11 and monitors the feeding status in real time.

[0065] The base plate 40 is provided with two parallel first slide rails. The bottom of the clamping plate 51 is fixed with a first slide block corresponding to the position of the first slide rail. The first slide block is slidably mounted on the first slide rail, so that the clamping plate 51 moves stably and will not deviate.

[0066] A second slide rail is provided on the clamp plate 51 at the position corresponding to the second pneumatic finger 82. A second slide block is installed at the bottom of the second pneumatic finger 82. The second slide block is slidably installed on the second slide rail, so that the second pneumatic finger 82 moves stably and will not deviate.

[0067] In this utility model, the vibratory feeder mechanism 20, the first servo module 33, and the second servo module 60 are all existing conventional technologies and will not be described in detail here;

[0068] First, the component to be pressed is manually mounted onto the clamping plate 51 on the clamping mechanism 50. The single-acting hydraulic cylinder clamping assembly 52 and the contour block 53 cooperate to form a compound clamping to clamp and fix the component.

[0069] Then, the vibratory feeder feeding mechanism 20 is started to feed the positioning pin. When the positioning pin is delivered to the end of the linear track of the vibratory feeder feeding mechanism 20, the control system 11 controls the first servo module 33 to work, so that the upper stiffener 32 moves horizontally to above the vibratory feeder outlet. Then, the first electric cylinder 36 pushes the lower stiffener 34 to descend vertically, and the first pneumatic finger 35 clamps the positioning pin. After clamping, the first servo module 33 drives the positioning pin to move along the preset path to above the clamping mechanism 50, and the first pneumatic finger 35 places the positioning pin on the pump body.

[0070] Then, the cylinder 81 of the straightening component 80 pushes the second pneumatic finger 82 to clamp the positioning pin, eliminating radial offset. The second servo module 60 drives the clamping mechanism 50 to move, so that the clamping mechanism 50 moves directly below the press mechanism 70.

[0071] Finally, the second electric cylinder 71 of the press mechanism 70 drives the press head 75 to press down. The floating joint 73 automatically compensates for the coaxiality deviation between the press head 75 and the positioning pin hole. The pressure sensor 74 monitors the pressing force in real time. When the pressure value reaches the preset threshold, the second electric cylinder 71 stops pressing down and retracts, completing the pressing cycle.

[0072] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A device for online press-fitting of locating pins in engine oil pump assembly, characterized in that, include: A stand (10) is provided with a control system (11) and a rack (12) is provided on the stand (10). Vibratory feeder feeding mechanism (20), which is mounted on a frame (10); Material handling mechanism (30), which is mounted on a frame (10); The substrate (40) is mounted on the bottom plate of the frame (12) and is located on the side of the vibratory feeder feeding mechanism (20); A clamping mechanism (50) is slidably mounted on a base plate (40), and a second servo module (60) for driving the clamping mechanism (50) to move is mounted on the base plate (40). A press mechanism (70) is mounted on top of the frame (12); The frame (12) is located in front of the gantry (31), and the rear of the base plate (40) extends to the bottom of the gantry (31); The clamping mechanism (50) includes a clamping plate (51), and a single-acting hydraulic cylinder clamping assembly (52) is installed on both the upper left and right sides of the clamping plate (51). Multiple contour blocks (53) are installed on the upper side of the clamping plate (51), and straightening components (80) are installed at both ends of the clamping plate (51) near the second servo module (60). The single-acting hydraulic cylinder clamping assembly (52) and the second servo module (60) are both electrically connected to the control system (11), and the output end of the second servo module (60) is connected to the clamp plate (51). The straightening assembly (80) includes a cylinder (81), a second pneumatic finger (82), and a mounting plate (83). The mounting plate (83) is connected to the side wall of the clamping plate (51). The second pneumatic finger (82) is slidably mounted on the clamping plate (51). The cylinder (81) is mounted on the mounting plate (83). The output end of the cylinder (81) passes through the mounting plate (83) and is connected to the second pneumatic finger (82). Both the cylinder (81) and the second pneumatic finger (82) are electrically connected to the control system (11).

2. The device for online press-fitting of locating pins for engine oil pump assembly according to claim 1, characterized in that: The material handling mechanism (30) includes a gantry (31), with an upper stiffening plate (32) slidably connected to the top front wall of the gantry (31). The top of the gantry (31) is provided with a first servo module (33) that drives the upper stiffening plate (32) to move. A lower stiffening plate (34) is slidably connected to the lower front side of the upper stiffening plate (32). A first pneumatic finger (35) is installed at the bottom of the lower stiffening plate (34). A first electric cylinder (36) is installed on the upper front side of the upper stiffening plate (32). The output end of the first electric cylinder (36) is connected to the lower stiffening plate (34). The gantry (31) is mounted on a platform (10), and the vibratory feeder mechanism (20) is placed inside the gantry (31).

3. The device for online press-fitting of locating pins for engine oil pump assembly according to claim 2, characterized in that: The control system (11) is electrically connected to the vibratory feeder (20), the first servo module (33), the first pneumatic finger (35), and the first electric cylinder (36).

4. The device for online press-fitting of locating pins for engine oil pump assembly according to claim 1, characterized in that: The press mechanism (70) includes a second electric cylinder (71), which is mounted on the top plate of the frame (12). The telescopic end of the second electric cylinder (71) passes through the top plate of the frame (12) and is connected to a pressure plate (72). A floating joint (73) is provided at the bottom of the pressure plate (72). A pressure sensor (74) is connected between the floating joint (73) and the pressure plate (72). A pressure head (75) is connected to the bottom of the floating joint (73). The second electric cylinder (71) and the pressure sensor (74) are both electrically connected to the control system (11).

5. The device for online press-fitting of locating pins for engine oil pump assembly according to claim 1, characterized in that: A support (41) is mounted on the side wall of the substrate (40), and a positioning pin sensor (42) is mounted on the support (41). The positioning pin sensor (42) is electrically connected to the control system (11).

6. The device for online press-fitting of locating pins for engine oil pump assembly according to claim 1, characterized in that: The substrate (40) is provided with two parallel first slide rails, and the bottom of the clamp plate (51) is fixed with a first slide block corresponding to the position of the first slide rails. The first slide block is slidably mounted on the first slide rails. The clamp plate (51) is provided with a second slide rail corresponding to the position of the second pneumatic finger (82), and a second slide block is installed at the bottom of the second pneumatic finger (82), and the second slide block is slidably installed on the second slide rail.

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