Force measuring device for on-line installation of safety valve in engine oil pump assembly

Abstract

The utility model discloses an on-line safety valve mounting force measuring device for engine oil pump assembly, and particularly relates to the technical field of engine oil pump assembly. The clamp assembly is installed on the base plate in a sliding mode, and a servo module for driving the clamp assembly to move is arranged on the base plate; the force measuring assembly is mounted at the bottom of the substrate, and the force measuring assembly comprises an electric cylinder, a pressure sensor and a testing head; and the pressing head assembly is installed on the machine frame and comprises a gas-liquid pressure cylinder and a second air cylinder, the output end of the gas-liquid pressure cylinder is connected with a pressing rod and a visual sensor, and the output end of the second air cylinder is connected with a pressing head. According to the utility model, accurate assembly and force measurement detection of the safety valve are realized, the detection efficiency and quality are greatly improved, and the reliability and detection efficiency of assembly of the engine oil pump safety valve are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of engine oil pump assembly technology, specifically to a force measuring device for an online safety valve used in engine oil pump assembly. Background Technology

[0002] An engine oil pump is a lightweight and compact pump. The safety valve of an engine oil pump comes in various forms. Generally, an oil pump has only one safety valve to ensure the safety of the engine seals. In the field of engine oil pump assembly, the opening and closing pressure, sealing performance, and assembly precision of the safety valve directly affect the reliability and service life of the oil pump.

[0003] Currently, the assembly process of existing oil pumps mostly relies on manual pressing and manual inspection. Manual inspection is inefficient, risky, and prone to issues such as pressure leakage and misjudgment. Utility Model Content

[0004] The purpose of this invention is to provide a force measuring device for an online safety valve used in engine oil pump assembly, in order to address the aforementioned shortcomings in the technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a force measuring device for an online safety valve assembly in an engine oil pump, comprising:

[0006] A frame on which a base plate is mounted;

[0007] A clamping assembly is slidably mounted on a base plate. A servo module for driving the clamping assembly to move is provided on the base plate. The clamping assembly includes a support plate and a first cylinder is provided on the support plate. A pressure pin is movably connected to the top output end of the first cylinder.

[0008] A force measuring assembly is mounted on the bottom of a substrate. The force measuring assembly includes an electric cylinder, a pressure sensor, and a test head. The pressure sensor is located between the output end of the electric cylinder and the test head.

[0009] A pressure head assembly is mounted on a frame. The pressure head assembly includes a pneumatic-hydraulic booster cylinder and a second cylinder. The output end of the pneumatic-hydraulic booster cylinder is connected to a pressure rod and a vision sensor, and the output end of the second cylinder is connected to a pressure head.

[0010] Preferably, the substrate is provided with two parallel linear guide rails, and a slide block is fixed at the bottom of the support plate corresponding to the position of the linear guide rails. The slide block is slidably mounted on the linear guide rails, so that the support plate moves stably on the substrate, thereby making the clamp assembly move stably on the substrate and preventing it from shifting.

[0011] Preferably, the frame includes a base plate, and each of the four upper corners of the base plate is fixed with a support column. The upper ends of the four support columns are connected to a top plate, which makes the frame structure strong and has good resistance to deformation.

[0012] The substrate is mounted on the base plate, which facilitates disassembly and maintenance in the future.

[0013] Preferably, the support plate has through holes;

[0014] The substrate has a second opening, and the bottom plate has a first opening at the position corresponding to the second opening;

[0015] A bracket is fixed at the bottom of the substrate corresponding to the second opening. The electric cylinder is mounted on the bracket and passes through the first opening. The output end of the electric cylinder is connected to a connecting block. The size of the connecting block is smaller than the size of the second opening. The test head is located on the connecting block. The pressure sensor is installed between the test head and the connecting block to eliminate traditional lateral force interference and improve detection accuracy.

[0016] Preferably, the gas-liquid booster cylinder and the second cylinder are both mounted on the top plate. The telescopic end of the gas-liquid booster cylinder passes through the top plate and is connected to the first guide plate. The number of pressure rods is set to three, and the three pressure rods are mounted on the bottom of the first guide plate. The vision sensor is mounted on the side wall of the first guide plate. The three pressure rods are symmetrically distributed. Combined with the high stability output of the gas-liquid booster cylinder, the assembly pressure of the safety valve is evenly distributed.

[0017] The pressure head is a vacuum adsorption pressure head, and the vision sensor is a high-resolution industrial camera that acquires images of the assembly position in real time.

[0018] Preferably, there are two first cylinders, which are distributed on the left and right sides of the upper side of the support plate. The first cylinder drives the pressure pins to effectively fix the valve body. The support plate is provided with multiple support pins, which can be adjusted according to the size of the safety valve to adapt to the positioning requirements of different valve body models.

[0019] Preferably, the bottom of the connecting block is connected to two first guide rods, which are symmetrically arranged on both sides of the electric cylinder. The lower end of the first guide rod slides through the bracket, so that the connecting block moves up and down stably, ensuring that the electric cylinder applies force in a vertical direction and avoiding sensor data distortion caused by off-center loading.

[0020] Preferably, four second guide rods are connected to the four upper corners of the first guide plate, and the upper ends of the second guide rods slide through the top plate;

[0021] The output end of the second cylinder passes through the top plate and is connected to the second guide plate. The pressure head is installed at the bottom of the second guide plate. The upper left and right ends of the second guide plate are connected to the third guide rods. The upper ends of the third guide rods slide through the top plate. The two third guide rods limit the movement of the second guide plate, so that the second guide plate moves up and down stably and will not deviate, thereby making the pressure head move up and down stably.

[0022] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0023] 1. With the frame as the core support structure, it integrates the base plate, fixture assembly, force measuring assembly and pressure head assembly to achieve precise assembly and force measurement of the safety valve, greatly improving the testing efficiency and quality, and significantly improving the reliability and testing efficiency of the engine oil pump safety valve assembly;

[0024] 2. This device can be used as a standalone unit or integrated into the assembly line area for online operation. Attached Figure Description

[0025] 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.

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the force measuring component of this utility model mounted on the substrate;

[0028] Figure 3 This is a schematic diagram of the clamp assembly of this utility model mounted on the substrate;

[0029] Figure 4 This is a schematic diagram of the pressure head assembly of this utility model installed on the frame;

[0030] Figure 5 This is a cross-sectional view of the connection between the force measuring component and the substrate of this utility model.

[0031] Explanation of reference numerals in the attached figures:

[0032] 10. Frame; 11. Base plate; 12. Support column; 13. Top plate; 14. First opening;

[0033] 20. Substrate; 21. Linear guide rail; 22. Second opening;

[0034] 30. Fixture assembly; 31. Bearing plate; 32. First cylinder; 33. Pressure pin; 34. Slide; 35. Support pin; 36. Through hole;

[0035] 40. Servo module;

[0036] 50. Force measuring assembly; 51. Electric cylinder; 52. Pressure sensor; 53. Test head; 54. Bracket; 55. Connecting block; 56. First guide rod;

[0037] 60. Pressure head assembly; 61. Pneumatic-hydraulic booster cylinder; 62. Second cylinder; 63. Pressure rod; 64. Vision sensor; 65. Pressure head; 66. First guide plate; 67. Second guide rod; 68. Second guide plate; 69. Third guide rod. Detailed Implementation

[0038] 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.

[0039] This utility model provides, for example Figures 1 to 5 The force measuring device shown is for an online safety valve assembly in an engine oil pump, comprising:

[0040] A rack 10, on which a base plate 20 is mounted;

[0041] The clamp assembly 30 is slidably mounted on the base plate 20. The base plate 20 is provided with a servo module 40 for driving the clamp assembly 30 to move. The clamp assembly 30 includes a support plate 31. A first cylinder 32 is provided on the support plate 31. A pressure nail 33 is movably connected to the top output end of the first cylinder 32.

[0042] Force measuring component 50 is installed at the bottom of base plate 20. Force measuring component 50 includes electric cylinder 51, pressure sensor 52 and test head 53. Pressure sensor 52 is located between the output end of electric cylinder 51 and test head 53.

[0043] The pressure head assembly 60 is mounted on the frame 10. The pressure head assembly 60 includes a pneumatic-hydraulic booster cylinder 61 and a second cylinder 62. The output end of the pneumatic-hydraulic booster cylinder 61 is connected to a pressure rod 63 and a vision sensor 64. The output end of the second cylinder 62 is connected to a pressure head 65.

[0044] Two parallel linear guide rails 21 are provided on the substrate 20. A slide block 34 is fixed at the bottom of the support plate 31 corresponding to the position of the linear guide rails 21. The slide block 34 is slidably mounted on the linear guide rails 21, so that the support plate 31 moves stably on the substrate 20, thereby making the clamp assembly 30 move stably on the substrate 20 and preventing it from shifting.

[0045] The frame 10 includes a base plate 11, and four support columns 12 are fixed to the upper corners of the base plate 11. The upper ends of the four support columns 12 are connected to the top plate 13, which makes the frame 10 structurally strong and has good resistance to deformation.

[0046] The substrate 20 is mounted on the base plate 11 for easy disassembly and maintenance later.

[0047] The support plate 31 has a through hole 36 to provide a test channel for the force measuring component 50;

[0048] A second opening 22 is provided on the substrate 20, and a first opening 14 is provided on the bottom plate 11 at the position corresponding to the second opening 22.

[0049] A bracket 54 is fixed at the bottom of the substrate 20 corresponding to the position of the second opening 22. An electric cylinder 51 is mounted on the bracket 54 and passes through the first opening 14. The output end of the electric cylinder 51 is connected to a connecting block 55. The size of the connecting block 55 is smaller than the size of the second opening 22. The test head 53 is located on the connecting block 55. The pressure sensor 52 is installed between the test head 53 and the connecting block 55 to eliminate traditional lateral force interference and improve detection accuracy.

[0050] The gas-liquid booster cylinder 61 and the second cylinder 62 are both mounted on the top plate 13. The telescopic end of the gas-liquid booster cylinder 61 passes through the top plate 13 and is connected to the first guide plate 66. There are three pressure rods 63, which are mounted on the bottom of the first guide plate 66. The vision sensor 64 is mounted on the side wall of the first guide plate 66. The three pressure rods 63 are symmetrically distributed. Combined with the high stability output of the gas-liquid booster cylinder, the assembly pressure of the safety valve is evenly distributed.

[0051] The pressure head 65 is a vacuum adsorption pressure head, and the vision sensor 64 adopts a high-resolution industrial camera to acquire images of the assembly position in real time.

[0052] There are two first cylinders 32, which are distributed on the left and right sides of the upper side of the support plate 31. The first cylinders 32 drive the pressure nails 33 to effectively fix the valve body. The support plate 31 is provided with multiple support nails 35. The layout of the support nails 35 can be adjusted according to the size of the safety valve to adapt to the positioning requirements of different models of valve bodies.

[0053] The bottom of the connecting block 55 is connected to two first guide rods 56. The two first guide rods 56 are symmetrically arranged on both sides of the electric cylinder 51. The lower end of the first guide rod 56 slides through the bracket 54, so that the connecting block 55 moves up and down stably, ensuring that the electric cylinder 51 applies force in a vertical direction and avoiding sensor data distortion caused by off-center load.

[0054] Four second guide rods 67 are connected to the four corners of the upper side of the first guide plate 66. The upper end of the second guide rod 67 slides through the top plate 13. The four second guide rods 67 limit the first guide plate 66, so that the first guide plate 66 moves up and down stably and will not deviate, thereby making the pressure rod 63 move up and down stably.

[0055] The output end of the second cylinder 62 passes through the top plate 13 and is connected to the second guide plate 68. The pressure head 65 is installed at the bottom of the second guide plate 68. The upper left and right ends of the second guide plate 68 are connected to the third guide rods 69. The upper ends of the third guide rods 69 slide through the top plate 13. The two third guide rods 69 limit the second guide plate 68, so that the second guide plate 68 moves up and down stably and will not deviate, thereby making the pressure head 65 move up and down stably.

[0056] This invention can be used as a standalone device or integrated into an assembly line area for online use.

[0057] In this utility model, the frame 10 is fixed on the workbench and connected to the air source, power source and control system;

[0058] Place the pump body on the support plate 31 of the clamp assembly 30, and activate the two first cylinders 32 on the clamp assembly 30 to move the pressure pins 33 down to fix the pump body.

[0059] The servo module 40 works to move the fixture assembly 30 to the press-fitting station, and the through hole 36 on the substrate 20 is aligned with the force measuring assembly 50.

[0060] The plug is vacuumed by the pressure head 65, and the steel ball and spring are manually installed into the pump body. Then, the gas-liquid booster cylinder 61 drives the three pressure rods 63 to move down to squeeze and fix the pump body. Then, the second cylinder 62 drives the pressure head 65 to move down to send the plug into the pump body. After the pressure head 65 is reset, the steel wire retaining ring is manually installed into the pump body. The vision sensor 64 identifies whether the steel wire retaining ring is installed in place.

[0061] The electric cylinder 51 drives the test head 53 to rise, and applies vertical pressure to the safety valve through the pressure sensor 52. The control system displays the force-displacement curve in real time. After the pressure reaches the preset threshold, the electric cylinder 51 stops and maintains the pressure for 3 seconds, records the peak data, and determines whether the safety valve performance is qualified.

[0062] After the force measurement is completed, the electric cylinder 51 drives the test head 53 to reset, and the fixture assembly 30 returns to its initial position;

[0063] The first cylinder 32 loosens the pressure pin 33, and the assembled pump body and safety valve are manually removed.

[0064] 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. An on-line safety valve force measuring device for engine oil pump assembly, characterized by, Include: Frame (10), the frame (10) is installed on the substrate (20); Clamp assembly (30), the clamp assembly (30) is slidingly installed on the substrate (20), the substrate (20) is provided with a servo module (40) for driving the clamp assembly (30) to move, the clamp assembly (30) comprises a bearing plate (31), the bearing plate (31) is provided with a first cylinder (32), the top output end of the first cylinder (32) is movably connected with a press nail (33); Force measuring assembly (50), the force measuring assembly (50) is installed at the bottom of the substrate (20), the force measuring assembly (50) comprises an electric cylinder (51), a pressure sensor (52) and a test head (53), the pressure sensor (52) is located between the output end of the electric cylinder (51) and the test head (53); Press head assembly (60), the press head assembly (60) is installed on the frame (10), the press head assembly (60) comprises a gas-liquid booster cylinder (61) and a second cylinder (62), the output end of the gas-liquid booster cylinder (61) is connected with a pressure rod (63) and a visual sensor (64), the output end of the second cylinder (62) is connected with a press head (65).

2. An on-line safety valve force measuring device for engine oil pump assembly as claimed in claim 1 wherein: The substrate (20) is provided with two parallel straight linear guides (21), the bottom of the bearing plate (31) is fixed with a sliding seat (34) corresponding to the position of the linear guide (21), and the sliding seat (34) is slidingly installed on the linear guide (21).

3. An on-line safety valve force measuring device for engine oil pump assembly as recited in claim 1, wherein: The frame (10) comprises a bottom plate (11), the upper side of the bottom plate (11) is fixed with a support column (12) at four corners, the upper ends of the four support columns (12) are commonly connected with a top plate (13), and the substrate (20) is installed on the bottom plate (11).

4. An on-line safety valve force measuring device for engine oil pump assembly as recited in claim 3, wherein: The bearing plate (31) is provided with a through hole (36); The substrate (20) is provided with a second opening (22), and the bottom plate (11) is provided with a first opening (14) corresponding to the position of the second opening (22); The bottom of the substrate (20) is fixed with a support (54) corresponding to the position of the second opening (22), the electric cylinder (51) is installed on the support (54) and penetrates the first opening (14), the output end of the electric cylinder (51) is connected with a connecting block (55), the size of the connecting block (55) is smaller than the size of the second opening (22), the test head (53) is arranged on the connecting block (55), and the pressure sensor (52) is installed between the test head (53) and the connecting block (55).

5. An on-line safety valve force measuring device for engine oil pump assembly as recited in claim 3, wherein: The gas-liquid booster cylinder (61) and the second cylinder (62) are installed on the top plate (13), the telescopic end of the gas-liquid booster cylinder (61) penetrates the top plate (13) and is connected with a first guide plate (66), the number of the pressure rods (63) is three, the three pressure rods (63) are installed at the bottom of the first guide plate (66), and the visual sensor (64) is installed on the side wall of the first guide plate (66); The press head (65) is a vacuum suction press head, and the visual sensor (64) adopts a high-resolution industrial camera.

6. An on-line safety valve force measuring device for engine oil pump assembly as recited in claim 1, wherein: The first air cylinder (32) is provided with two, two first air cylinder (32) is distributed on the bearing plate (31) upside left and right ends, the bearing plate (31) is provided with a plurality of support nails (35).

7. An on-line safety valve force measuring device for engine oil pump assembly as recited in claim 4, wherein: The bottom of the connecting block (55) is connected with two first guide rods (56), and the two first guide rods (56) are symmetrically arranged on the two sides of the electric cylinder (51). The lower end of the first guide rod (56) slidably penetrates the support (54).

8. An on-line safety valve force measuring device for engine oil pump assembly as recited in claim 5, wherein: The upper side of the first guide plate (66) is connected with four second guide rods (67), and the upper end of the second guide rod (67) slidably penetrates the top plate (13). The output end of the second air cylinder (62) penetrates the top plate (13) and is connected with a second guide plate (68). The pressure head (65) is installed at the bottom of the second guide plate (68). The left and right ends of the upper side of the second guide plate (68) are connected with third guide rods (69), and the upper end of the third guide rod (69) slidably penetrates the top plate (13).

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