A multi-axis linkage spring positioning and grabbing device

Abstract

The utility model proposes a multi-axis linked spring positioning and grasping device, comprising a three-axis module, a connecting plate is fixed on the sliding plate of the vertical module of the three-axis module, a rotating motor is provided at the bottom of the connecting plate, the output of the rotating motor passes through the connecting plate and is connected to a fixing frame, a pressing assembly is provided in the fixing frame, a limiting block is provided at the bottom of the fixing frame, a sliding groove is provided in the limiting block, two groups of sliders are horizontally slidably connected in the sliding groove, and the lower parts of the sliders are respectively connected with positioning claws, and the device is convenient for grasping and placing torsion springs at multiple angles on the production line by setting a multi-axis structure; the positioning claw is adjusted by pushing the position between the sliders through the set push block, and the spring is pressed by the clamping column to position the spring, and after the positioning claw is inserted into the end hole of the spring, the spring is fixed by the tensioning force generated when the sliders are separated from each other, thereby achieving grasping.

Description

Technical Field

[0001] The utility model relates to the field of cylinder automatic assembly equipment, in particular to a multi-axis linked snap spring positioning and grabbing device. Background Art

[0002] Cylinder circlips, also known as circlips or retaining rings, are fasteners that are usually installed in the shaft grooves or hole grooves of machines or equipment. They are designed to prevent axial movement of parts on the shaft or hole. The shape of the circlip is mostly circular, with a notch at one end, which is locked by screws to maintain the stability of the equipment. In addition, there is a circlip that is similar in shape to a spring, which has a certain degree of stretchability and can also keep the object in a stable working state. In the application of valve groups, the role of circlips is particularly obvious. The role of the cylinder structure is to make the connection between the cylinder and the cylinder head tighter.

[0003] In the automated production line for cylinder assembly, since the torsion spring is small and thin, and has an irregular structure, it is difficult to grasp and position the retaining spring with an ordinary clamp. The two holes at the end of the retaining spring need to be positioned, and the retaining spring also moves during positioning, making it difficult to find the positioning hole. Utility Model Content

[0004] In order to solve the above technical problems, the utility model proposes a multi-axis linkage spring positioning and grasping device, including a three-axis module, a connecting plate is fixed on the sliding plate of the vertical module of the three-axis module, a rotating motor is provided at the bottom of the connecting plate, the output of the rotating motor passes through the connecting plate and is connected to a fixed frame, a downward pressure component is provided in the fixed frame, a limit block is provided at the bottom of the fixed frame, a slide groove is provided in the limit block, two groups of sliders are horizontally slidably connected in the slide groove, and the lower parts of the sliders are respectively connected with positioning claws; a push block is connected to the output end of the downward pressure component, and the push block pushes the sliders to move closer or away from each other, and elastic members are provided between the sliders.

[0005] Preferably, the fixing frame comprises two groups of positioning plates arranged in parallel, a connecting plate is provided between the positioning plates, and the connecting plate is fixedly connected to the connecting plate.

[0006] Preferably, an opening is provided on the top of the limit block, and the push block extends into the opening and presses on the sliding block.

[0007] Preferably, the push block comprises a connecting portion, and an inverted V-shaped portion is provided at the lower portion of the connecting portion.

[0008] Preferably, the sliding block comprises a C-shaped block, the inner side of the C-shaped block is provided with a wedge-shaped surface, the wedge-shaped surface is pressed with the V-shaped portion of the push block, and an elastic member is provided between the C-shaped blocks.

[0009] Preferably, the positioning claw is fixedly connected to the bottom of the sliding block by means of screws, and a cylindrical positioning pin is provided at the end of the positioning claw for inserting into the holes of the two sections of the retaining spring.

[0010] Preferably, a clamping column is fixedly connected to the side wall of the limit block. The clamping column is a hollow structure with a C-shaped bottom and is located between the positioning claws for clamping the retaining spring. A avoidance groove is provided at the bottom of the clamping column.

[0011] Preferably, the pressing assembly includes a driving motor, the output end of the driving motor is connected to a screw rod, the screw rod passes through a fixing plate fixed between the fixing frames, and the bottom extends into the pushing block, the external thread of the screw rod is connected to a screw rod sleeve, and the screw rod sleeve is fixedly connected to the pushing block.

[0012] Preferably, a cylindrical hole is provided on the top of the push block, and the screw rod extends into the cylindrical hole.

[0013] The multi-axis linkage spring positioning and grabbing device proposed in the utility model has the following beneficial effects: 1. The device is convenient for grabbing and placing torsion springs at multiple angles on the production line by setting a multi-axis structure;

[0014] 2. The push block is set to cooperate with the structure of the slider and the positioning claw. The positioning claw is adjusted by pushing the position between the sliders, and the clamping spring is compressed by the clamping column to position the clamping spring. After the positioning claw is inserted into the end hole of the clamping spring, the tension force generated when the sliders are separated from each other fixes the clamping spring to achieve grasping. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the installation of the pressing assembly and the limit block of the utility model;

[0018] Figure 3 It is a three-dimensional schematic diagram of the push block and the sliding block of the utility model;

[0019] Figure 4 It is a cross-sectional view of the connection between the pressing component and the limiting block of the utility model;

[0020] Figure 5 This is a schematic diagram of the connection between the limit block and the pressing column of the utility model;

[0021] Among them, 1. three-axis module; 2. vertical module; 3. sliding plate; 4. connecting plate; 5. rotating motor; 6. pressing assembly; 7. limit block; 8. slide groove; 9. slider; 10. positioning claw; 11. push block; 12. elastic member; 13. avoidance groove; 14. positioning plate; 15. opening; 16. V-shaped part; 17. wedge-shaped surface; 18. cylindrical positioning pin; 19. clamping column; 20. driving motor; 21. screw rod; 22. fixing plate; 23. screw rod sleeve; 24. cylindrical hole. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] like Figure 1 As shown, the utility model proposes a multi-axis linkage spring positioning and grasping device, including a three-axis module 1, which is a purchased part and includes three directions of XYZ axes.

[0024] like Figure 2 As shown, a connecting plate 4 is fixed on the sliding plate 3 of the vertical module 2 of the three-axis module 1, and a rotating motor 5 is provided at the bottom of the connecting plate 4. The output of the rotating motor 5 passes through the connecting plate 4 and is connected to a fixed frame. The rotating motor 5 can be a servo motor, which can drive the fixed frame to rotate to adjust the direction of the fixed frame. In conjunction with the three-axis module 1, five-axis movement is realized, which is more suitable for work on an automated production line.

[0025] The fixing frame is provided with a pressing assembly 6, wherein Figure 2 , Figure 3 , Figure 4As shown, the fixing frame includes two groups of positioning plates 14 arranged in parallel, a connecting plate is provided between the positioning plates 14, the connecting plate is fixedly connected to the connecting plate 4, the positioning plate 14 and the connecting plate form a C-shaped frame structure, a limit block 7 is provided at the bottom of the fixing frame, the limit block 7 extends out of the bottom of the positioning plate 14, and is connected to the positioning plate 14 by a clamping block, a slide groove 8 is provided in the limit block 7, and the slide groove 8 is horizontally slidably connected with two groups of sliders 9, the slider 9 includes a C-shaped block, and a wedge surface 17 is provided inside the C-shaped block. The push block 11 includes a connecting portion, The connecting part is connected to the pressing assembly 6, and an inverted V-shaped part 16 is provided at the lower part of the connecting part. The wedge-shaped surface 17 is pressed with the V-shaped part 16 of the pushing block 11. Since the slider 9 is connected to the inner side of the limit block 7 through the slide rail groove 8, the slider 9 can move horizontally along the inner side of the limit block 7. When the push block 11 presses the slider 9 downward, the slider 9 is displaced in the horizontal direction, that is, it moves away from each other. An elastic member 12 is provided between the C-shaped blocks, and the elastic member 12 can be a spring. When the push block 11 moves upward, the elastic member 12 between the C-shaped blocks brings the two closer to each other. The lower part of the slider 9 is respectively connected with a positioning claw 10, and the positioning claw 10 is fixedly connected to the bottom of the slider 9 by a screw. The end of the positioning claw 10 is provided with a cylindrical positioning nail 18, which is used to be inserted into the holes of the two sections of the clip spring. When inserted into the holes at both ends of the clip spring and the sliders 9 move away from each other, the clip spring can be tensioned and grasped. This method can adjust the distance of the slider 9 to adapt to clip springs of different specifications.

[0026] The above-mentioned pressing assembly 6 includes a driving motor 20. In order to ensure the accuracy of the up and down movement, a screw rod 21 module is selected. However, the slider 9 of the conventional screw rod 21 module is in the middle of the screw rod 21. When the push block 11 is matched, the position is easy to interfere with the outside. Therefore, in this embodiment, Figure 4 As shown, the output end of the driving motor 20 is connected to the screw rod 21, the screw rod 21 passes through the fixing plate 22 fixed between the fixing frames, and the bottom extends into the pushing block 11. The connecting portion at the top of the pushing block 11 is provided with a cylindrical hole 24, and the screw rod 21 extends into the cylindrical hole 24. The screw rod 21 is externally threadedly connected with a screw rod sleeve 23, and the screw rod sleeve 23 is fixedly connected to the pushing block 11, so when the screw rod 21 rotates, the bottom extends into the cylindrical hole 24 without affecting the pushing block 11, and as shown in FIG. Figure 5 As shown, since the top of the limit block 7 is provided with an opening 15, the push block 11 extends into the opening 15 and presses on the slider 9. The push block 11 is restricted by the limit block 7 and will not rotate. After the screw sleeve 23 is fixed to the push block 11, the screw 21 rotates, which will drive the screw sleeve 23 and the push block 11 to move up and down along the screw 21, thereby realizing the action of the push block 11 pushing the slider 9.

[0027] In addition, it should be noted that when positioning the hole of the retaining spring, in order to prevent the retaining spring from being offset, a clamping column 19 is fixedly connected to the side wall of the limit block 7. The clamping column 19 is a hollow structure with a C-shaped bottom and is located between the positioning claws 10. When the limit block 7 presses the circular part of the retaining spring, the positioning claws 10 are inserted into the hole to prevent the retaining spring from being displaced during insertion, resulting in difficulty in positioning, and a avoidance groove 13 is provided at the bottom of the clamping column 19 to prevent interference with the positioning column.

Claims

1. A multi-axis linkage spring positioning and grasping device, comprising a three-axis module, characterized in that: A connecting plate is fixed on the sliding plate of the vertical module of the three-axis module, a rotating motor is provided at the bottom of the connecting plate, the output of the rotating motor passes through the connecting plate and is connected to a fixing frame, a pressing assembly is provided in the fixing frame, a limiting block is provided at the bottom of the fixing frame, a sliding groove is provided in the limiting block, two groups of sliding blocks are horizontally slidably connected to the sliding groove, and positioning claws are respectively connected to the lower part of the sliding block; a pushing block is connected to the output end of the pressing assembly, and the pushing block pushes the sliding blocks to move closer to or away from each other, and elastic members are provided between the sliding blocks.

2. The multi-axis linkage retaining spring positioning and grabbing device according to claim 1, characterized in that: The fixing frame comprises two groups of positioning plates arranged in parallel, a connecting plate is arranged between the positioning plates, and the connecting plate is fixedly connected to the connecting plate.

3. The multi-axis linkage retaining spring positioning and grasping device according to claim 1, characterized in that: An opening is arranged on the top of the limit block, and the push block extends into the opening and is pressed on the sliding block.

4. The multi-axis linkage retaining spring positioning and grabbing device according to claim 1 or 3, characterized in that: The push block comprises a connecting portion, and an inverted V-shaped portion is arranged at the lower part of the connecting portion.

5. The multi-axis linkage retaining spring positioning and grabbing device according to claim 4, characterized in that: The sliding block comprises a C-shaped block, the inner side of which is provided with a wedge-shaped surface, and the wedge-shaped surface is pressed with the V-shaped portion of the push block.

6. The multi-axis linkage retaining spring positioning and grabbing device according to claim 1, characterized in that: The positioning claw is fixedly connected to the bottom of the sliding block by means of screws, and a cylindrical positioning nail is provided at the end of the positioning claw for inserting into the holes of the two sections of the retaining spring.

7. The multi-axis linkage retaining spring positioning and grabbing device according to claim 1, characterized in that: The side wall of the limit block is fixedly connected with a clamping column, which is a hollow structure with a C-shaped bottom and is located between the positioning claws for clamping the retaining spring. A avoidance groove is provided at the bottom of the clamping column.

8. The multi-axis linkage retaining spring positioning and grabbing device according to claim 1, characterized in that: The pressing assembly includes a driving motor, the output end of the driving motor is connected to a screw rod, the screw rod passes through a fixing plate fixed between the fixing frames, and the bottom extends into the pushing block, the external thread of the screw rod is connected to a screw rod sleeve, and the screw rod sleeve is fixedly connected to the pushing block.

9. The multi-axis linkage retaining spring positioning and grabbing device according to claim 8, characterized in that: A cylindrical hole is arranged on the top of the push block, and the screw rod extends into the cylindrical hole.

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