A sealing ring assembly device

Abstract

The utility model relates to a sealing ring assembly device, including transfer mechanism and the assembly fixture of being arranged in the lower portion of transfer mechanism, the structure of assembly fixture is: including fixed base, the first floating seat of sliding installation has in fixed base, the outer circumferential surface cooperation installation of fixed base has the second floating seat, the second floating seat is connected with the first floating seat through along the slide bar of horizontal arrangement, the slide bar is through fixed base, and the bottom radial end surface between the second floating seat and fixed base cooperation installation has several springs that are evenly spaced along the circumference arrangement, the outer circumferential surface of first floating seat is along annular and is provided with limit convex edge, and the top annular radial end surface of limit convex edge and fixed base forms limit step. Through setting up transfer mechanism and assembly fixture, can automatically complete the assembly between sealing ring and workpiece, its installation efficiency is high, can effectively improve production efficiency, reduce artificial cost, promote assembly quality, avoid producing the problem of assembly not in place, guarantee product sealing performance.

Description

Technical Field

[0001] This utility model relates to the field of automotive electronic fuel pump assembly technology, and in particular to a sealing ring assembly device. Background Technology

[0002] The pump cover is an important component of an automotive electronic fuel pump. It typically works in conjunction with components such as the pump chamber and impeller to ensure a stable fuel delivery. O-rings are installed on the pump cover to ensure the fuel pump's sealing performance.

[0003] In the existing technology, O-rings are installed into the sealing groove at the bottom of the pump cover manually. However, manual assembly is inefficient and it is difficult to ensure the consistency of assembly quality. At the same time, since the O-ring is installed deep, manual assembly often results in incomplete assembly, leading to poor sealing performance of the product. Utility Model Content

[0004] Therefore, it is necessary to provide a sealing ring assembly device to address the problems of low work efficiency, difficulty in ensuring consistent assembly quality, and poor product sealing performance caused by improper assembly in existing technologies that rely on manual assembly of sealing rings.

[0005] The technical solution adopted in this utility model is as follows: A sealing ring assembly device includes a transfer mechanism and an assembly fixture arranged below the transfer mechanism; The assembly fixture has the following structure: it includes a fixed base, a first floating base is slidably installed in the fixed base, a second floating base is fitted on the outer circumferential surface of the fixed base, the second floating base is connected to the first floating base by a horizontally arranged slide rod, the slide rod passes through the fixed base, and several springs are fitted between the bottom radial end face of the second floating base and the fixed base and are evenly spaced along the circumference. The outer circumferential surface of the first floating seat is provided with a limiting protrusion along the ring. The limiting protrusion and the top annular radial end face of the fixed seat form a limiting step, which limits the sealing ring. The first floating seat and the second floating seat simultaneously carry the workpiece. The workpiece on the assembly fixture is clamped by the transfer mechanism and pushed downward in the vertical direction. The workpiece pushes the first floating seat and the second floating seat to float downward relative to the fixed seat, so that the top annular radial end face of the fixed seat is higher than the top radial end face of the first floating seat. Then, the sealing ring is pushed into the workpiece through the top annular radial end face of the fixed seat.

[0006] As a further improvement to the above technical solution: The transfer mechanism comprises a mounting base, on which a first linear drive member arranged horizontally is fixed. The output end of the first linear drive member is connected to a first connecting base. A second linear drive member arranged vertically is fixed on the first connecting base. The output end of the second linear drive member is connected to a second connecting base. An electric gripper is fixed on the second connecting base. The electric gripper is equipped with two opposing gripper fingers. The electric gripper drives the two gripper fingers to perform linear movements that are close to or far apart, thereby clamping or releasing the workpiece.

[0007] The working end face of each gripper finger is provided with a concave arc surface.

[0008] An mounting plate is fitted onto the electric gripper, and the mounting plate is arranged between the fingers of the two grippers. Several auxiliary grippers are fitted onto the mounting plate.

[0009] A slide rail is fixed on the mounting base, and a slider is installed on the slide rail. The slider is fixed to the first connecting base.

[0010] The structure of the fixing base is as follows: it includes a first ring segment and a second ring segment connected sequentially from top to bottom, and the outer circumferential surface of the second ring segment is provided with a connecting protrusion segment; The thickness of the first annular segment is less than the thickness of the second annular segment; The top annular radial end face of the first annular segment is used to support the sealing ring; Two symmetrically arranged guide holes are provided on the side wall of the second annular segment. The guide holes are installed in conjunction with the slide rod. When the first floating seat floats downward relative to the fixed seat, the slide rod slides in the guide hole.

[0011] A plug is fitted on the top of the first floating seat.

[0012] The top of the first floating seat is fitted with several first positioning pins, and the top of the second floating seat is fitted with several second positioning pins. The workpiece is positioned by the first positioning pins and the second positioning pins.

[0013] The bottom of the assembly fixture is fitted with a base plate.

[0014] Several handles are fitted on the top of the base plate.

[0015] The beneficial effects of this utility model are as follows: This utility model has a compact and reasonable structure and is easy to operate. By setting up a transfer mechanism and assembly fixture, it can automatically complete the assembly between the sealing ring and the workpiece. It has high installation efficiency, can effectively improve production efficiency, reduce labor costs, improve assembly quality, avoid problems of incomplete assembly, and ensure the sealing performance of the product.

[0016] This utility model also has the following advantages: (1) By setting a spring, the first floating seat and the second floating seat can be automatically reset, thereby preparing for the next assembly and improving assembly efficiency.

[0017] (2) By setting the first linear drive component and the second linear drive component, the electric gripper can move flexibly in the horizontal and vertical directions, accurately align and press down the workpiece, thereby achieving high-quality assembly.

[0018] (3) By setting the concave arc surface and auxiliary grippers, the clamping stability of the transfer mechanism on the workpiece can be effectively improved.

[0019] (4) By setting the first positioning pin and the second positioning pin, the workpiece can be positioned when the assembly fixture carries the workpiece.

[0020] (5) By rotating the adjusting bolt and the adjusting seat, the installation position of the mounting seat relative to the adjusting seat can be adjusted to match different working conditions. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the transfer mechanism in this utility model.

[0023] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.

[0024] Figure 4 This is a schematic diagram of the present invention in its working state (the transfer mechanism is omitted).

[0025] Figure 5 This is a schematic diagram of the assembly fixture in this utility model.

[0026] Figure 6 for Figure 5 Exploded view.

[0027] Figure 7 This is a full sectional view of the assembly fixture in this utility model.

[0028] Figure 8 This is a schematic diagram of the installation structure of the workpiece and the sealing ring in this utility model.

[0029] The components include: 1. Transfer mechanism; 2. Assembly fixture; 3. Material seat; 4. Handle; 5. Locking device; 6. Base plate; 7. Sealing groove; 8. Pump cover; 9. Sealing ring. 101. First linear drive component; 102. Second linear drive component; 103. Mounting base; 104. Adjusting base; 105. Adjusting bolt; 106. Slide rail; 107. Slider; 108. First connecting base; 109. Second connecting base; 110. Third connecting base; 111. Mounting plate; 112. Electric gripper; 113. Gripper fingers; 114. Concave arc surface; 115. Auxiliary gripper; 201. First floating seat; 202. Second floating seat; 203. Fixed seat; 204. Slide rod; 205. Spring; 206. Plug; 207. Limiting flange; 208. First positioning pin; 209. First through hole; 210. Second positioning pin; 211. Second through hole; 2031, First annular segment; 2032, Second annular segment; 2033, Connecting flange segment; 2034, Guide hole. Detailed Implementation

[0030] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0031] The structure and function of this utility model are as follows: like Figures 1-8 As shown, a sealing ring assembly device includes a transfer mechanism 1 and an assembly fixture 2 arranged below the transfer mechanism 1. The assembly fixture 2 has the following structure: it includes a fixed base 203, a first floating seat 201 slidably installed in the fixed base 203, a second floating seat 202 fitted on the outer circumferential surface of the fixed base 203, the second floating seat 202 being connected to the first floating seat 201 via a horizontally arranged slide rod 204 passing through the fixed base 203, and several springs 205 evenly spaced along the circumference being fitted between the bottom radial end face of the second floating seat 202 and the fixed base 203; the outer circumferential surface of the first floating seat 201 is arranged along a ring... A limiting flange 207 is provided, which forms a limiting step with the top annular radial end face of the fixed seat 203. The limiting step limits the sealing ring 9. The first floating seat 201 and the second floating seat 202 simultaneously carry the workpiece. The workpiece is clamped on the assembly fixture 2 by the transfer mechanism 1 and pushed downward in the vertical direction. The workpiece pushes the first floating seat 201 and the second floating seat 202 downward relative to the fixed seat 203, so that the top annular radial end face of the fixed seat 203 is higher than the top radial end face of the first floating seat 201. Then, the sealing ring 9 is pushed into the workpiece through the top annular radial end face of the fixed seat 203. By setting the transfer mechanism 1 and the assembly fixture 2, the assembly between the sealing ring 9 and the workpiece can be completed automatically. It has high installation efficiency, can effectively improve production efficiency, reduce labor costs, improve assembly quality, avoid problems of incomplete assembly, and ensure the sealing performance of the product.

[0032] One end of the spring 205 is fixed to the radial end face of the second floating seat 202, and the other end of the spring 205 is fixed to the radial end face of the fixed seat 203. By setting the spring 205, after the assembly is completed, the first floating seat 201 and the second floating seat 202 can be pushed to automatically reset, thereby preparing for the next assembly and improving the assembly efficiency.

[0033] In this utility model, such as Figure 8 As shown, the sealing ring 9 is an O-ring, and the workpiece is a pump cover 8. A sealing groove 7 is opened on the end face of the pump cover 8. After assembly, the sealing ring 9 is installed in the sealing groove 7.

[0034] like Figures 1-3 As shown, the structure of the transfer mechanism 1 is as follows: it includes a mounting base 103, a first linear drive 101 arranged horizontally is fixed on the mounting base 103, the output end of the first linear drive 101 is connected to a first connecting base 108, a second linear drive 102 arranged vertically is fixed on the first connecting base 108, the output end of the second linear drive 102 is connected to a second connecting base 109, an electric gripper 112 is fixed on the second connecting base 109, the electric gripper 112 is equipped with two opposing gripper fingers 113, the electric gripper 112 drives the two gripper fingers 113 to make linear movements that are close to or far apart, thereby clamping or releasing the workpiece. The first linear drive 101 drives the second linear drive 102 to move linearly in the horizontal direction, thereby causing the electric gripper 112 to move linearly in the horizontal direction, so that the electric gripper 112 is aligned with the workpiece; the second linear drive 102 drives the electric gripper 112 to move linearly downward in the vertical direction, so that the electric gripper 112 can approach and clamp the workpiece; after the electric gripper 112 clamps the workpiece, the second linear drive 102 drives the electric gripper 112 to move linearly downward in the vertical direction, thereby pressing down the workpiece, and then the sealing ring 9 is installed into the workpiece through the assembly fixture 2.

[0035] In this utility model, both the first linear drive component 101 and the second linear drive component 102 adopt servo linear modules, which have high motion accuracy and can realize the flexible movement of the electric gripper 112 in the horizontal and vertical directions, accurately align and press down the workpiece, thereby completing the assembly.

[0036] The working end face of each gripper finger 113 is provided with a concave arc surface 114. By providing the concave arc surface 114, the gripper finger 113 fits more closely with the outer wall of the workpiece, thereby effectively improving the clamping stability of the transfer mechanism 1 on the workpiece.

[0037] An mounting plate 111 is fitted onto the electric gripper 112. The mounting plate 111 is positioned between the two gripper fingers 113, and several auxiliary grippers 115 are fitted onto the mounting plate 111. The mounting plate 111 is fixed to the electric gripper 112 via a third connecting seat 110. By providing the auxiliary grippers 115, the clamping stability of the transfer mechanism 1 on the workpiece is further improved.

[0038] A slide rail 106 is fixed on the mounting base 103, and a slider 107 is mounted on the slide rail 106. The slider 107 is fixed to the first connecting base 108. By setting the slide rail 106 and the slider 107, the motion stability of the first connecting base 108 in the horizontal linear motion can be improved, thereby improving the motion stability of the electric gripper 112.

[0039] In addition, at least two sets of adjustment components are also installed on the mounting base 103. Each set of adjustment components includes an adjustment seat 104. The adjustment seat 104 is connected to the mounting base 103 by an adjustment bolt 105. By rotating the adjustment bolt 105, the installation position of the mounting base 103 relative to the adjustment seat 104 can be adjusted to adapt to different working conditions.

[0040] like Figures 6-7 As shown, the structure of the fixed seat 203 is as follows: it includes a first annular segment 2031 and a second annular segment 2032 connected sequentially from top to bottom. The outer circumferential surface of the second annular segment 2032 is provided with a connecting protrusion segment 2033. The thickness of the first annular segment 2031 is less than the thickness of the second annular segment 2032. The top annular radial end face of the first annular segment 2031 is used to support the sealing ring 9. Two symmetrically arranged guide holes 2034 are opened on the side wall of the second annular segment 2032. The guide holes 2034 are installed in conjunction with the slide rod 204. When the first floating seat 201 floats downward relative to the fixed seat 203, the slide rod 204 slides in the guide hole 2034. The top annular radial end face of the first annular segment 2031 corresponds to the top annular radial end face of the assembly fixture 2, serving as its working end face. It is used to support the sealing ring 9 and push the sealing ring 9 into the sealing groove 7 of the workpiece. By providing a guide hole 2034 on the second annular segment 2032, the movement of the slide rod 204 can be guided.

[0041] By setting a second annular segment 2032, whose inner circle mates with the outer circle of the annular first floating seat 201, sliding installation between the first floating seat 201 and the fixed seat 203 can be achieved. By setting a limiting flange 207 on the outer circular surface of the first floating seat 201, the protruding limiting flange 207 can compensate for the thickness difference between the inner circle of the first annular segment 2031 and the inner circle of the second annular segment 2032, thereby achieving a tight fit with the inner circle of the first annular segment 2031, and thus achieving stable limiting of the sealing ring 9 at the initial stage. At the same time, along the axial direction of the first annular segment 2031, the height of the limiting flange 207 is less than the height of the first annular segment 2031, thereby avoiding interference with the up and down floating of the first floating seat 201.

[0042] In this utility model, the first annular segment 2031, the second annular segment 2032 and the connecting convex edge segment 2033 adopt an integrated structure.

[0043] A cover 206 is fitted on the top of the first floating seat 201. The first floating seat 201 is annular, and the cover 206 covers the inner circle of the first floating seat 201.

[0044] Several first positioning pins 208 are installed on the top of the first floating seat 201, and several second positioning pins 210 are installed on the top of the second floating seat 202. The workpiece is positioned by the first positioning pins 208 and the second positioning pins 210. By setting the first positioning pins 208 and the second positioning pins 210, the workpiece can be positioned when the assembly fixture 2 carries the workpiece.

[0045] In this utility model, the outer circle of the first floating seat 201 mates with the inner circle of the fixed seat 203, and the second floating seat 202 is generally annular, with the inner circle of the second floating seat 202 mates with the outer circle of the fixed seat 203, thereby realizing the sliding installation of the corresponding components; the side wall of the first floating seat 201 is provided with symmetrically arranged first through holes 209 along the radial direction, and the side wall of the second floating seat 202 is provided with symmetrically arranged second through holes 211 along the radial direction. The slide rod 204 passes through two first through holes 209, two second through holes 211, and two guide holes 2034 at the same time, thereby realizing the connection between the first floating seat 201 and the second floating seat 202.

[0046] The bottom of the assembly fixture 2 is fitted with a base plate 6. Specifically, the fixing seat 203 is fixed to the top of the base plate 6 via a connecting flange 2033.

[0047] Several handles 4 are installed on the top of the base plate 6, and several locking devices 5 are also installed on the base plate 6. The base plate 6 can be quickly fixed to the workbench by the locking devices 5. In addition, a material holder 3 is also installed on the base plate 6 for storing assembly materials.

[0048] The working process of this utility model is as follows: First, the operator places the sealing ring 9 on the limiting step of the assembly fixture 2. The sealing ring 9 is supported by the top radial end face of the fixed seat 203. Then, the pump cover 8 is placed on the assembly fixture 2 and positioned by the first positioning pin 208 and the second positioning pin 210, so that the sealing groove 7 of the pump cover 8 is aligned with the sealing ring 9 that has been placed in place. Then, the electric gripper 112 opens, the first linear drive 101 is activated, and the electric gripper 112 is aligned with the pump cover 8. Subsequently, the second linear drive 102 is activated, and the electric gripper 112 is lowered. After the electric gripper 112 is lowered into place, the electric gripper 112 drives the two gripper fingers 113 to make similar linear movements, so that the two gripper fingers 113 are tightly attached to the outer wall surface of the pump cover 8, thereby clamping the pump cover 8. Subsequently, the second linear drive 102 drives the electric gripper 112 to continue descending. Under the combined action of the two gripper fingers 113, several auxiliary grippers 115 and the mounting plate 111, the pump cover 8 is pressed down, causing the pump cover 8 to drive the first floating seat 201 and the second floating seat 202 to make a downward linear motion relative to the fixed seat 203, and the slide rod 204 slides in the guide hole 2034. Simultaneously, the fixed seat 203 rises relative to the first floating seat 201 and the second floating seat 202. When the top annular radial end face of the fixed seat 203 is higher than the top radial end face of the first floating seat 201, the sealing ring 9 is pushed into the corresponding sealing groove 7 through the top annular radial end face of the fixed seat 203, thereby completing the assembly between the pump cover 8 and the sealing ring 9. After the assembly is completed, the second linear drive 102 drives the electric gripper 112 to reset. At the same time, under the action of the spring 205, the first floating seat 201 and the second floating seat 202 reset to wait for the next assembly.

[0049] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A sealing ring assembly device, characterized in that: It includes a transfer mechanism (1) and an assembly fixture (2) arranged below the transfer mechanism (1); The assembly fixture (2) has the following structure: it includes a fixed seat (203), in which a first floating seat (201) is slidably installed, and a second floating seat (202) is fitted on the outer circumferential surface of the fixed seat (203). The second floating seat (202) is connected to the first floating seat (201) by a horizontally arranged slide rod (204), which passes through the fixed seat (203). Several springs (205) are evenly spaced along the circumference between the bottom radial end face of the second floating seat (202) and the fixed seat (203). The outer circumferential surface of the first floating seat (201) is provided with a limiting protrusion (207) along the ring. The limiting protrusion (207) and the top annular radial end face of the fixed seat (203) form a limiting step, which limits the sealing ring (9). The first floating seat (201) and the second floating seat (202) simultaneously carry the workpiece. The workpiece on the assembly fixture (2) is clamped by the transfer mechanism (1), and the workpiece is pushed downward in the vertical direction. The workpiece pushes the first floating seat (201) and the second floating seat (202) to float downward relative to the fixed seat (203), so that the top annular radial end face of the fixed seat (203) is higher than the top radial end face of the first floating seat (201). Then, the sealing ring (9) is pushed into the workpiece through the top annular radial end face of the fixed seat (203).

2. The sealing ring assembly device as described in claim 1, characterized in that: The structure of the transfer mechanism (1) is as follows: it includes a mounting base (103), on which a first linear drive member (101) arranged in the horizontal direction is fixed, the output end of the first linear drive member (101) is connected to a first connecting base (108), on which a second linear drive member (102) arranged in the vertical direction is fixed, the output end of the second linear drive member (102) is connected to a second connecting base (109), on which an electric gripper (112) is fixed, the electric gripper (112) is equipped with two oppositely arranged gripper fingers (113), the electric gripper (112) drives the two gripper fingers (113) to make linear movements that are close to or far apart, thereby clamping or releasing the workpiece.

3. The sealing ring assembly device as described in claim 2, characterized in that: The working end face of a single gripper finger (113) is provided with an inwardly concave arc surface (114).

4. The sealing ring assembly device as described in claim 2, characterized in that: An mounting plate (111) is installed on the electric gripper (112). The mounting plate (111) is arranged between the two gripper fingers (113). Several auxiliary grippers (115) are installed on the mounting plate (111).

5. A sealing ring assembly device as described in claim 2, characterized in that: The mounting base (103) is fixed with a slide rail (106), and a slider (107) is installed on the slide rail (106). The slider (107) is fixed on the first connecting base (108).

6. The sealing ring assembly device as described in claim 1, characterized in that: The structure of the fixed base (203) is as follows: it includes a first annular segment (2031) and a second annular segment (2032) connected from top to bottom, and the outer circumferential surface of the second annular segment (2032) is provided with a connecting protruding edge segment (2033). The thickness of the first annular segment (2031) is less than the thickness of the second annular segment (2032); The top annular radial end face of the first annular segment (2031) is used to support the sealing ring (9); Two symmetrically arranged guide holes (2034) are provided on the side wall of the second annular segment (2032). The guide holes (2034) are installed in conjunction with the slide rod (204). When the first floating seat (201) floats downward relative to the fixed seat (203), the slide rod (204) slides in the guide hole (2034).

7. A sealing ring assembly device as described in claim 1, characterized in that: A cover (206) is fitted on the top of the first floating seat (201).

8. A sealing ring assembly device as described in claim 1, characterized in that: The top of the first floating seat (201) is fitted with several first positioning pins (208), and the top of the second floating seat (202) is fitted with several second positioning pins (210). The workpiece is positioned by the first positioning pins (208) and the second positioning pins (210).

9. A sealing ring assembly device as described in claim 8, characterized in that: The bottom of the assembly fixture (2) is fitted with a base plate (6).

10. A sealing ring assembly device as described in claim 9, characterized in that: Several handles (4) are fitted on the top of the base plate (6).

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