A positioning jig for lifting and supporting an electric seat reducer housing

Abstract

The utility model discloses a kind of positioning fixture of lifting supporting electric seat reducer shell, including jig plate, the positioning device of movable cooperation on jig plate, positioning device is equipped with locating pin, positioning device is fixedly connected lifting rod, retractable spring is sleeved on lifting rod;The side wall of positioning device is equipped with limit hole, the below of jig plate is equipped with horizontal limit rod, horizontal limit rod is driven by horizontal cylinder, horizontal limit rod can be cooperated into the limit hole.Under the elastic force of retractable spring, positioning device is lifted, accepts shell.The shell is pressed down, positioning device drops along with it, horizontal limit rod transverse displacement, insert limit hole, limit positioning device rising.The positioning device of this design can be in the mode of lifting and accept the shell in high position, avoid robot gripper and positioning fixture interference.

Description

Technical Field

[0001] This utility model relates to the automotive field, specifically to a reducer assembly equipment for electric motors. Background Technology

[0002] The motor reducer includes a housing and a reduction gear assembly housed within the housing. The reduction gear assembly needs to be assembled into the housing, which requires positioning on a fixture during assembly. The housing's positioning on the fixture primarily relies on the engagement of vertical positioning pins with shaft holes on the housing. During the process of the robot arm placing the housing onto the fixture, the downward protrusions on the robot arm can easily interfere with the upward protrusions on the fixture. Therefore, the robot arm cannot descend too low to place the housing onto the fixture. However, the positioning pins on the fixture have limited height, making it difficult for the robot arm to accurately place the housing onto the fixture. Utility Model Content

[0003] The technical problem solved by this utility model is that when the robot arm descends too low, its convex structure is prone to interference with the convex structure of the fixture, and the height of the housing positioning pin on the fixture is limited, making it difficult for the robot arm to accurately position the housing on the fixture.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a positioning fixture for lifting and supporting the housing of an electric seat reducer, including a fixture plate and a positioning device movably fitted on the fixture plate. The positioning device is provided with a positioning pin and a lifting rod is fixedly connected to the positioning device. The lifting rod passes downward through the fixture plate and a telescopic spring is sleeved on the lifting rod. The telescopic spring is located between the positioning device and the fixture plate. A limiting protrusion is provided at the bottom end of the lifting rod. A limiting hole is provided on the side wall of the positioning device, and a transverse limiting rod is provided below the fixture plate. The transverse limiting rod is driven by a horizontal cylinder and can fit into the limiting hole.

[0005] Under the elastic force of the telescopic spring and guided by the lifting rod, the positioning device is lifted. The gripper of the robotic arm places the housing on the positioning device, and the positioning device positions the housing. Then, the robotic arm rotates, the gripper leaves the working position, the pressure rod moves to the working position, the pressure rod presses down on the housing, the positioning device descends accordingly, the lifting rod descends, and the telescopic spring is compressed. Then, driven by the horizontal cylinder, the lateral limiting rod moves laterally and inserts into the limiting hole, restricting the positioning device from rising. After the robotic arm leaves, another robotic arm assembles the deceleration assembly into the housing. After completion, the lateral limiting rod disengages from the limiting hole, the positioning device and housing rise, and the gripper of the robotic arm removes the housing from the positioning device.

[0006] The positioning device includes a cover and a cylindrical body, which are fixedly connected. A positioning pin fits into the cylindrical body and protrudes upward from the cover. A positioning pin spring is installed in the cylindrical body to lift the positioning pin. The positioning fixture has multiple positioning devices and positioning components. The elastic positioning pin can adapt to unevenness on the bottom surface of the housing, achieving stable positioning of the housing. Furthermore, the elastic positioning pin provides good cushioning during the assembly of the deceleration component into the housing.

[0007] A guide seat is fixedly installed on the fixture plate, and a guide post is movably fitted in the guide seat. The guide post is fixedly connected to the cover. When the positioning device is in the raised state, the guide post can disengage from the guide seat. When the positioning device is lowered, under the guidance of the lifting rod, the guide post engages with the guide seat to guide the descent of the positioning device.

[0008] The lateral limiting rod is connected to the vertical plate, which in turn is connected to the horizontal cylinder. The lateral limiting rod is movably fitted within a guide component, which is fixedly installed at the bottom of the fixture plate. The horizontal cylinder drives the vertical plate, which in turn drives the lateral limiting rod.

[0009] The fixture plate is equipped with a first type of elastic positioning element, which includes an integrally formed positioning part and a cuboid part. The cuboid part is movably fitted onto a vertical limiting post, which is fixedly mounted on a first type of base. The first type of base is fixed to the fixture plate, and a first spring is provided between the cuboid part and the first type of base. After the positioning device and its upper housing descend, the positioning part positions the corresponding part of the housing.

[0010] The fixture plate is equipped with a second type of elastic positioning element, which includes an integrally formed positioning rod and a disc-shaped component. The positioning rod is movably fitted into a second type of base. A second spring is provided between the disc-shaped component and the second type of base. An L-shaped limiting component is provided on the side of the second type of base. The L-shaped limiting component has a strip-shaped limiting hole, in which a limiting pin is fitted. The limiting pin is fixedly connected to the disc-shaped component. After the positioning device and its upper housing descend, the positioning rod positions the corresponding part of the housing.

[0011] This utility model has the following technical effects:

[0012] First, the positioning device can lift the housing at a high position, thus avoiding interference between the robotic gripper and the positioning fixture;

[0013] Secondly, after the robotic arm presses down the housing, the lateral limiting rod can restrict the positioning device and the housing to a low position, providing conditions for the subsequent assembly of the deceleration components. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings:

[0015] Figure 1A schematic diagram of a positioning fixture for lifting and supporting the housing of the electric seat reducer;

[0016] Figure 2 A schematic diagram from another perspective of the positioning fixture for lifting and supporting the reducer housing of the electric seat;

[0017] Figure 3 This is a schematic diagram of the positioning device 20;

[0018] Figure 4 for Figure 3 A schematic diagram of the middle tube body after 24-level concealment;

[0019] Figure 5 This is a schematic diagram of the positioning housing 90 for the positioning fixture.

[0020] Explanation of symbols in the diagram:

[0021] 10. Jig board;

[0022] 20. Positioning device; 21. Positioning pin; 22. Limiting hole; 23. Cover; 24. Cylinder body; 25. Positioning pin spring;

[0023] 30. Lifting rod; 31. Telescopic spring; 32. Limiting protrusion;

[0024] 40. Lateral limiting rod; 41. Horizontal cylinder; 42. Vertical plate; 43. Guide component;

[0025] 50. Guide seat; 51. Guide post;

[0026] 60. Type I elastic positioning element; 61. Positioning part; 62. Rectangular part; 63. Vertical limiting post; 64. Type I base; 65. First spring;

[0027] 70. Second type of elastic positioning component; 71. Positioning rod; 72. Disc-shaped component; 73. Second type of base; 74. Second spring; 75. L-shaped limiting component; 750. Strip-shaped limiting hole; 76. Limiting pin;

[0028] 90. Shell. Detailed Implementation

[0029] Combination Figures 1 to 3A positioning fixture for lifting and supporting the housing of an electric seat reducer includes a fixture plate 10 and a positioning device 20 movably fitted on the fixture plate. The positioning device is provided with a positioning pin 21 and a lifting rod 30 fixedly connected to the positioning device. The lifting rod passes downward through the fixture plate and is fitted with a telescopic spring 31. The telescopic spring is located between the positioning device and the fixture plate. The bottom end of the lifting rod is provided with a limiting protrusion 32. The side wall of the positioning device is provided with a limiting hole 22. A transverse limiting rod 40 is provided below the fixture plate. The transverse limiting rod is driven by a horizontal cylinder 41 and can fit into the limiting hole.

[0030] Combination Figure 3 , Figure 4 The positioning device 20 includes a cover 23 and a cylinder 24. The cover and the cylinder are fixedly connected. The positioning pin 21 is fitted in the cylinder and protrudes upward from the cover. The cylinder is provided with a positioning pin spring 25 that lifts the positioning pin.

[0031] A guide seat 50 is fixedly provided on the fixture plate 10, and a guide post 51 is movably fitted in the guide seat. The guide post is fixedly connected to the cover 23.

[0032] like Figure 2 The lateral limiting rod 40 is connected to the vertical plate 42, the vertical plate is connected to the horizontal cylinder 41, the lateral limiting rod is movably fitted in the guide member 43, and the guide member is fixedly installed at the bottom of the fixture plate 10.

[0033] like Figure 1 The fixture plate 10 is provided with a first type of elastic positioning element 60, which includes an integrally formed positioning part 61 and a cuboid part 62. The cuboid part is movably fitted on a vertical limiting post 63, and the vertical limiting post is fixedly set on a first type of base 64. The first type of base is fixed on the fixture plate, and a first spring 65 is provided between the cuboid part and the first type of base.

[0034] The fixture plate 10 is provided with a second type of elastic positioning element 70, which includes an integrally formed positioning rod 71 and a disc-shaped part 72. The positioning rod is movably fitted in the second type of base 73. A second spring 74 is provided between the disc-shaped part and the second type of base. An L-shaped limiting element 75 is provided on the side of the second type of base. The L-shaped limiting element has a strip-shaped limiting hole 750. A limiting pin 76 is fitted in the strip-shaped limiting hole. The limiting pin is fixedly connected to the disc-shaped part.

[0035] Under the elastic force of the telescopic spring 31 and guided by the lifting rod 30, the positioning device 20 is lifted. The gripper of the robot arm places the housing 90 on the positioning device 20, and the positioning pin 21 of the positioning device positions the housing. Then, the robot arm rotates, the gripper leaves the working position, the pressure rod comes to the working position, the pressure rod presses down on the housing 90, the positioning device descends accordingly, the lifting rod 30 descends, and the telescopic spring 31 is compressed. Then, driven by the horizontal cylinder 41, the lateral limiting rod 40 moves laterally and inserts into the limiting hole 22, restricting the positioning device 20 from rising.

[0036] After the robotic arm leaves, another robotic arm assembles the deceleration assembly into the housing 90. Once completed, the lateral limit rod 40 disengages from the limit hole 22, the positioning device 20 and the housing 90 rise, and the robotic arm's gripper removes the housing 90 from the positioning device.

[0037] The positioning fixture has multiple positioning devices and components. The elastic positioning pin 21 can adapt to unevenness on the bottom surface of the housing, achieving stable positioning of the housing. Furthermore, the elastic positioning pin provides good cushioning during the assembly of the deceleration assembly into the housing.

[0038] When the positioning device 20 is in the raised state, the guide column 51 can disengage from the guide seat 50. When the positioning device is lowered, under the guidance of the lifting rod 30, the guide column engages with the guide seat to guide the descent of the positioning device.

[0039] After the positioning device 20 and its upper housing 90 are lowered, the first type of elastic positioning member 60 and the second type of elastic positioning member 70 position the corresponding parts of the housing.

[0040] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A positioning fixture for lifting and supporting the housing of an electric seat reducer, comprising a fixture plate (10) and a positioning device (20) movably fitted on the fixture plate, the positioning device being provided with a positioning pin (21), characterized in that: The positioning device is fixedly connected to the lifting rod (30), the lifting rod passes downward through the fixture plate, and a telescopic spring (31) is sleeved on the lifting rod. The telescopic spring is located between the positioning device and the fixture plate, and a limiting protrusion (32) is provided at the bottom end of the lifting rod. The side wall of the positioning device is provided with a limiting hole (22), and a transverse limiting rod (40) is provided below the fixture plate. The transverse limiting rod is driven by a horizontal cylinder (41) and can be fitted into the limiting hole.

2. The positioning fixture for the housing of the lifting and supporting electric seat reducer as described in claim 1, characterized in that: The positioning device (20) includes a cover (23) and a cylinder (24). The cover and the cylinder are fixedly connected. The positioning pin (21) is fitted in the cylinder and protrudes upward from the cover. The cylinder is provided with a positioning pin spring (25) that lifts the positioning pin.

3. The positioning fixture for the housing of the lifting and supporting electric seat reducer as described in claim 2, characterized in that: A guide seat (50) is fixedly provided on the fixture plate (10), and a guide post (51) is movably fitted in the guide seat. The guide post is fixedly connected to the cover (23).

4. The positioning fixture for the housing of the lifting and supporting electric seat reducer as described in claim 1, characterized in that: The lateral limiting rod (40) is connected to the vertical plate (42), the vertical plate is connected to the horizontal cylinder (41), the lateral limiting rod is movably fitted in the guide (43), and the guide is fixedly installed at the bottom of the fixture plate (10).

5. The positioning fixture for the housing of the lifting and supporting electric seat reducer as described in claim 1, characterized in that: The fixture plate (10) is provided with a first type of elastic positioning element (60). The first type of elastic positioning element includes an integrally formed positioning part (61) and a cuboid part (62). The cuboid part is movably fitted on a vertical limiting post (63). The vertical limiting post is fixedly set on a first type of base (64). The first type of base is fixed on the fixture plate. A first spring (65) is provided between the cuboid part and the first type of base.

6. The positioning fixture for the housing of the lifting and supporting electric seat reducer as described in claim 1, characterized in that: The fixture plate (10) is provided with a second type of elastic positioning element (70). The second type of elastic positioning element includes an integrally formed positioning rod (71) and a disc-shaped part (72). The positioning rod is movably fitted in the second type of base (73). A second spring (74) is provided between the disc-shaped part and the second type of base. An L-shaped limiting element (75) is provided on the side of the second type of base. The L-shaped limiting element is provided with a strip-shaped limiting hole (750). A limiting pin (76) is fitted in the strip-shaped limiting hole. The limiting pin is fixedly connected to the disc-shaped part.

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