Oil pump pin assembling jig

Abstract

The utility model aims at providing an oil pump pin assembling jig which comprises a base used for bearing an oil pump, a machine frame and an assembling assembly, the oil pump is provided with a pin hole, the base is arranged on the machine frame, a driving piece is arranged on the machine frame in a sliding mode and located above the base, and the assembling assembly comprises a controller, an induction piece, a round block, a suction nozzle and an elastic piece. The sensing piece is arranged on the driving piece and electrically connected with the controller, the round block is arranged on the sensing piece, the suction nozzle is arranged on the round block in a sliding mode, a through hole is formed in the suction nozzle and used for containing a pin, the detection end of the sensing piece coaxially penetrates through the round block to stretch into the through hole, and the elastic piece is arranged at the detection end of the sensing piece in a sleeving mode. The elastic piece pushes the round block and the suction nozzle respectively, the driving piece drives the assembling assembly to be close to the base so that the suction nozzle can abut against the oil pump, then the detection end of the induction piece pushes the pin to be inserted into the pin hole, the induction piece detects the riveting force between the pin and the pin hole, and the finished product quality of assembling the pin on the oil pump is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of mechanical engineering, and in particular to an oil pump pin assembly fixture. Background Technology

[0002] In today's industrial sector, oil pumps are key power transmission components in numerous mechanical devices, and the quality and efficiency of their manufacturing are of paramount importance. Among these components, pins play an indispensable role in the internal structural connections of the oil pump, ensuring precise positioning and reliable connection between various critical parts. Furthermore, the accurate assembly of these pins during the manufacturing and assembly process is crucial to the overall performance and reliability of the oil pump.

[0003] However, existing pins have the following shortcomings in actual assembly: the dimensions of both the pin and the pin hole on the oil pump used to install the pin have tolerance ranges during production. For example, the pin size may deviate from the upper limit of the tolerance range, and the pin hole size may deviate from the lower limit. As a result, when the pin is inserted into the pin hole, the pin may become loose or fall out, leading to poor quality of the assembled oil pump. In view of this, the oil pump pin assembly fixture of this application is proposed. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an oil pump pin assembly fixture that can detect the riveting force between the pin and the pin hole while assembling the pin, so as to improve the quality of the oil pump assembly product.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] An oil pump pin assembly fixture includes a base for supporting the oil pump, a pin hole on the pump, and further includes:

[0007] A frame, the base being mounted on the frame, a driving component slidably mounted on the frame, and the driving component being positioned above the base; and

[0008] An assembly assembly includes a controller, a sensor, a circular block, a suction nozzle, and an elastic element. The sensor is mounted on the drive unit and electrically connected to the controller. The circular block is mounted on the sensor, and the suction nozzle is slidably mounted on the circular block. The suction nozzle has a through hole for receiving a pin. The detection end of the sensor coaxially passes through the circular block and extends into the through hole. The elastic element is sleeved on the detection end of the sensor and pushes against the circular block and the suction nozzle. The drive unit moves the assembly assembly closer to the base so that the suction nozzle abuts against the oil pump, thereby causing the detection end of the sensor to push the pin into the pin hole.

[0009] Optionally, the assembly component further comprises an air joint, and the suction nozzle is further provided with an air suction hole in communication with the through hole.

[0010] Optionally, the circular block is provided with a convex column, and the suction nozzle is slidingly arranged on the convex column.

[0011] Optionally, the inductive piece is provided with a thimble, the thimble is located on the detection end of the inductive piece, and the end of the thimble away from the inductive piece is coaxially arranged in the through hole of the circular block.

[0012] Optionally, the diameter of the thimble is matched with the diameter of the through hole.

[0013] Optionally, the circular block is provided with a through hole coaxially arranged with the through hole, and the thimble is arranged in the through hole.

[0014] Optionally, the driving piece comprises a sliding column and a swing rod, the sliding column is slidingly arranged on the rack, the swing rod is rotationally arranged on the rack, one end of the sliding column is engaged with the swing rod, and the other end of the sliding column is connected with the inductive piece.

[0015] Optionally, the assembly component further comprises a limiting piece and a top sheet, the limiting piece is arranged on the rack and electrically connected with the controller, and the top sheet is arranged on the sliding column and abuts against the limiting piece driven by the sliding column.

[0016] Compared with the prior art, the oil pump pin assembly jig has at least the following advantages:

[0017] The oil pump pin assembly jig pushes the pin into the pin hole by the thimble arranged on the inductive piece, so as to detect the riveting force between the pin and the pin hole, and the controller controls the buzzer and the indicator light to issue an abnormality reminder, thereby improving the finished product quality of the oil pump assembly pin. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0019] Figure 1 FIG. 1 is a structural schematic view of an oil pump pin assembly jig according to an embodiment of the present application;

[0020] Figure 2 As Figure 1 Partial structure schematic view of A in the middle;

[0021] Figure 3 Partial structure schematic view of the assembly component of an embodiment of the present application;

[0022] Figure 4 Structure schematic view of the position of the needle installation of an embodiment of the present application;

[0023] Figure 5 Partial structure cross-sectional schematic view of the assembly component of an embodiment of the present application;

[0024] Figure 6 Partial structure cross-sectional schematic view of the nozzle and oil pump abutting part of an embodiment of the present application.

[0025] Explanation of reference signs:

[0026] 1, oil pump pin assembly jig; 10, oil pump; 11, pin hole; 20, base; 30, rack; 40, assembly component; 50, pin; 31, driving piece; 41, sensing piece; 42, round block; 43, nozzle; 44, elastic piece; 431, through hole; 311, slide column; 312, swing lever; 411, needle; 45, air joint; 432, air inlet hole; 47, limiting piece; 48, top sheet. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present application, the present application will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present application are shown in the drawings.

[0028] In the description of the embodiments of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0029] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0030] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0031] like Figure 1 As shown, in one embodiment, an oil pump pin assembly fixture 1 includes a base 20 for supporting an oil pump 10, with a pin hole 11 on the oil pump 10. It also includes a frame 30 and an assembly assembly 40. The base 20 is mounted on the frame 30, and a drive member 31 is slidably mounted on the frame 30, positioned above the base 20. The assembly assembly 40 includes a controller, a sensor 41, a circular block 42, a suction nozzle 43, and an elastic member 44. The sensor 41 is mounted on the drive member 31 and electrically connected to the controller. The circular block 42 is... The sensor 41 is placed on the suction nozzle 43, which is slidably disposed on the circular block 42. The suction nozzle 43 has a through hole 431 for receiving the pin 50. The detection end of the sensor 41 passes through the circular block 42 and extends into the through hole 431. The elastic member 44 is sleeved on the detection end of the sensor 41. The elastic member 44 pushes the circular block 42 and the suction nozzle 43 respectively. The driving member 31 drives the assembly 40 to approach the base 20 so that the suction nozzle 43 abuts against the oil pump 10, thereby causing the detection end of the sensor 41 to push the pin 50 into the pin hole 11.

[0032] It needs to be explained that the rack 30 tends to be a C-shaped structure, the base 20 is arranged on one end of the rack 30, the driving member 31 is arranged on the other end of the rack 30, and the driving member 31 is located above the base 20. Further, the driving member 31 comprises a slide column 311 and a swing rod 312, both of which are worm structures, the slide column 311 is arranged on one end of the rack 30, and the slide column 311 faces the base 20, so that the slide column 311 can slide towards or away from the base 20 relative to the rack 30. Further, one end of the swing rod 312 is rotatably arranged on the end of the rack 30 away from the base 20, and the swing rod 312 is in meshing connection with the slide column 311, so that the swing rod 312 is swung to make the slide column 311 slide towards or away from the base 20. Further, the sensing member 41 is a pressure sensor structure, the sensing member 41 is arranged on the end of the slide column 311 close to the base 20, and the detection end of the sensing member 41 faces the base 20. The circular block 42 is arranged on the side of the sensing member 41 facing the base 20, and the detection end of the sensing member 41 coaxially penetrates the circular block 42 and extends out from the side of the circular block 42 away from the sensing member 41. Further, two convex columns are arranged on the circular block 42, one end of the two convex columns is arranged on the end of the circular block 42 away from the sensing member 41, and the two convex columns are respectively located at the two ends of the detection end of the sensing member 41 facing each other, and the suction nozzles 43 are in sliding connection with the two convex columns, so that the suction nozzles 43 can slide relative to the circular block 42. Further, a through hole is formed in the axial direction of the circular block 42, and a through hole 431 is formed in the axial direction of the suction nozzle 43, the two convex columns are respectively located at the two ends of the through hole facing each other, so that the through hole and the through hole 431 are coaxially arranged, so that the detection end of the sensing member 41 can penetrate the through hole and extend into the through hole 431 from the side of the circular block 42 close to the through hole 431. Further, the elastic member 44 is a spring structure, the elastic member 44 is sleeved on the detection end of the sensing member 41, the elastic member 44 respectively pushes the circular block 42 and the suction nozzle 43, when the slide column 311 drives the assembly 40 to approach the base 20, the circular block 42 drives the suction nozzle 43 to abut against the oil pump 10 on the base 20, so that the oil pump 10 pushes the suction nozzle 43 to press the elastic member 44, so that the detection end of the sensing member 41 located in the through hole 431 extends out from the end of the through hole 431 away from the circular block 42 relative to the suction nozzle 43.Further, the oil pump 10 is provided with a pin hole 11, when the suction nozzle 43 abuts against the oil pump 10, the through hole 431 is aligned with the pin hole 11 and communicates with each other, since the through hole 431 is used for accommodating the pin 50, when the pin 50 is placed in the through hole 431, the slide column 311 drives the inductor 41 to approach the oil pump 10, so that the detection end of the inductor 41 pushes the pin into the pin hole 11 from the through hole 431, at this time, if the hole diameter tolerance range of the pin hole 11 is the upper limit, the diameter tolerance range of the pin 50 is the lower limit, or the hole diameter tolerance range of the pin hole 11 is the lower limit, the diameter tolerance range of the pin 50 is the upper limit, the riveting force between the pin 50 and the pin hole 11 will be reduced, so that the force of the detection end of the inductor 41 pushing the pin 50 will be reduced. Further, the inductor 41 is a pressure sensor, the inductor 41 is electrically connected with the controller, for example, the controller is a PLC, the controller further includes a pressure display, a buzzer and an indicator, when the detection end of the inductor 41 pushes the pin 50 into the pin hole 11, the pressure feedback is transmitted to the controller, when the pin 50 is inserted into the pin hole 11, if the pressure is too large or too small, the controller can control the buzzer to issue an alarm sound and the indicator to light to remind, so as to improve the product quality.

[0033] As shown in Figures 3 to 6 , in an embodiment, the inductor 41 is provided with a thimble 411, the thimble 411 is located on the detection end of the inductor 41, and the end of the thimble 411 away from the inductor 41 is coaxially arranged in the circular block 42 and extends into the through hole 431.

[0034] It should be noted that one end of the thimble 411 is arranged on the detection end of the inductor 41, the other end of the thimble 411 is coaxially arranged through the through hole and extends into the through hole 431, and since the suction nozzle 43 is slidingly arranged on the circular block 42, the suction nozzle 43 drives the through hole 431 to slide relative to the thimble 411, so that the thimble 411 can extend out of the end of the through hole 431 away from the circular block 42.

[0035] As shown in Figures 1 to 6 , in an embodiment, the assembly 40 further includes a gas joint 45, the suction nozzle 43 is further provided with a suction hole 432, and the suction hole 432 communicates with the through hole 431. The gas joint 45 is arranged on the suction nozzle 43, and the gas joint 45 communicates with the suction hole 432.

[0036] It needs to be explained that the diameter of the top pin 411 is matched with the hole diameter of the through hole 431, the end of the top pin 411 away from the inductor 41 is inserted into the through hole 431, and is located at the middle position of the through hole 431, so that the top pin 411 tends to block the half of the through hole 431 towards the circular block 42, and the half of the through hole 431 away from the top pin 411 is a circular groove. The air suction hole 432 is arranged on the suction nozzle 43 and is located on the half of the through hole 431 away from the top pin 411, and the air suction hole 432 is communicated with the half of the circular groove of the through hole 431. Further, one end of the air connector 45 is arranged on the suction nozzle 43, the air connector 45 is communicated with the air suction hole 432, and the other end of the air connector 45 is communicated with the air extraction equipment, so that the half of the through hole 431 away from the top pin 411 is a circular groove with negative pressure, when the pin 50 is placed on the end of the through hole 431 away from the top pin 411, the pin 50 can not slide off the suction nozzle 43 under the condition of negative pressure, so that when the driving part 31 drives the suction nozzle 43 to abut against the oil pump 10, the suction nozzle 43 can drive the pin 50 to approach the pin hole 11.

[0037] As shown in the drawings, Figure 1 In an embodiment, the assembly component 40 further comprises a limiting part 47 and a top sheet 48, the limiting part 47 is arranged on the rack 30, the limiting part 47 is electrically connected with the controller, and the top sheet 48 is arranged on the slide column 311, the slide column 311 drives the top sheet 48 to abut against the limiting part 47.

[0038] It needs to be explained that the limiting part 47 is an inductive switch mechanism, the limiting part 47 is arranged on the rack 30, and the limiting part 47 is electrically connected with the controller, the top sheet 48 is arranged on the end of the slide column 311 away from the inductor 41, the slide column 311 drives the inductor 41 to approach the oil pump 10 at the same time, and drives the top sheet 48 to approach the limiting part 47, it needs to be noted that the distance of the top pin 411 pushing the pin 50 to approach the pin hole 11 downwards is consistent with the distance of the top sheet 48 abutting against the limiting part 47, so that when the pin 50 starts to contact with the pin hole 11, the inductor 41 opens to detect the riveting force between the pin 50 and the pin hole 11, so that the operator pushes the pin 50 to the top pin 411 when placing the pin 50 in the through hole 431 is avoided, the pressure detected by the inductor 41 is abnormal, and the reminding is triggered, so as to improve the detection accuracy during assembly.

[0039] The above-mentioned embodiments only express several embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the application patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the application patent should be subject to the appended claims.

Claims

1. A hydraulic pump pin assembly fixture, comprising an hydraulic pump and a base for supporting the hydraulic pump, wherein the hydraulic pump has a pin hole, characterized in that, Also includes: A frame, wherein the base is disposed on the frame, and a driving component is slidably disposed on the frame, and the driving component is located above the base; and An assembly assembly includes a controller, a sensor, a circular block, a suction nozzle, and an elastic element. The sensor is mounted on the drive unit and electrically connected to the controller. The circular block is mounted on the sensor, and the suction nozzle is slidably mounted on the circular block. The suction nozzle has a through hole for receiving a pin. The detection end of the sensor coaxially passes through the circular block and extends into the through hole. The elastic element is sleeved on the detection end of the sensor and pushes against the circular block and the suction nozzle. The drive unit moves the assembly assembly closer to the base so that the suction nozzle abuts against the oil pump, thereby causing the detection end of the sensor to push the pin into the pin hole.

2. The oil pump pin assembly fixture according to claim 1, characterized in that, The assembly assembly also includes an air connector, and the suction nozzle is provided with an air suction hole, which is connected to the through hole. The air connector is disposed on the suction nozzle and is connected to the air suction hole.

3. The oil pump pin assembly fixture according to claim 2, characterized in that, The circular block is provided with a protruding post, and the suction nozzle is slidably disposed on the protruding post.

4. The oil pump pin assembly fixture according to claim 3, characterized in that, The sensor is provided with a pin, which is located on the detection end of the sensor, and the end of the pin away from the sensor is coaxially inserted into the through hole of the circular block.

5. The oil pump pin assembly fixture according to claim 4, characterized in that, The diameter of the ejector pin is adapted to the diameter of the through hole.

6. The oil pump pin assembly fixture according to claim 5, characterized in that, The circular block has a through hole, which is coaxial with the through hole. The ejector pin passes through the through hole and extends into the through hole.

7. The oil pump pin assembly fixture according to claim 6, characterized in that, The driving component includes a sliding column and a swing rod. The sliding column is slidably mounted on the frame, and the swing rod is rotatably mounted on the frame. One end of the sliding column engages with the swing rod, and the other end of the sliding column is connected to the sensing element.

8. The oil pump pin assembly fixture according to claim 7, characterized in that, The assembly assembly also includes a limiting member and a top plate. The limiting member is disposed on the frame and is electrically connected to the controller. The top plate is disposed on the sliding column, and the sliding column drives the top plate to abut against the limiting member.

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