Workpiece gripping device for powder metallurgy

Abstract

The utility model discloses a workpiece grabbing equipment for powder metallurgy, including crossbeam, the lower end surface of crossbeam and be located both sides are fixedly equipped with strip -shaped piece, the upper end surface of strip -shaped piece all are equipped with the guide slot, the inside of guide slot all are slid and are equipped with the guide block, the upper end surface of guide block all are movably equipped with the mounting panel, both ends of mounting panel all are fixedly equipped with the air -guide pipe, the bottom of air -guide pipe all are linked together and are equipped with the sucking disc, the middle position of mounting panel all are equipped with the mounting hole, the upper end of guide block all are equipped with the pressure stud, thereby when needing to adjust the position of sucking disc, can rotate the knob first, to make the threaded column upward and get out, knob will separate the fixed mounting panel at this moment, then can move sucking disc through the cooperation of guide block and guide slot to realize the effect of adjustment, after adjusting, again screw the knob tightly to fix mounting panel and strip -shaped piece, make things convenient for the follow -up of grabbing.

Description

Technical Field

[0001] This utility model relates to the field of powder metallurgy technology, and more specifically, it relates to a workpiece gripping device for powder metallurgy. Background Technology

[0002] Powder metallurgy is a continuous batch production process. In the pressing and molding process, since the product only has a certain green blank thickness, the product is prone to cracking from demolding to sintering. Therefore, the current mainstream technology for gripping workpieces is mostly a robotic arm structure with vacuum suction cups. The vacuum suction cups use an air source to generate negative pressure to transfer the workpiece.

[0003] However, in the use of existing workpiece gripping equipment, the position of the vacuum suction cup is mostly fixed, and the position of the suction cup cannot be freely adjusted according to the size of the workpiece being processed, resulting in poor practical effect. Furthermore, relying solely on suction cups to fix the workpiece being processed results in poor safety performance. If the air source fails due to unforeseen circumstances and cannot create negative pressure at the vacuum suction cup, the powder metallurgy workpiece sucked up by the vacuum suction cup will fall directly to the ground, causing some loss. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a workpiece gripping device for powder metallurgy, which solves the technical problem mentioned in the background art that the position of the vacuum suction cup of the existing workpiece gripping device is mostly fixed and cannot be freely adjusted according to the size of the workpiece being processed, resulting in poor practical effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a workpiece gripping device for powder metallurgy, comprising a crossbeam, strip blocks fixedly provided on both sides of the lower end face of the crossbeam, guide grooves provided on the upper end face of each strip block, guide blocks slidably provided inside each guide groove, mounting plates movably provided on the upper end face of each guide block, air guide pipes fixedly provided at both ends of each mounting plate, suction cups connected to the bottom of each air guide pipe, mounting holes provided in the middle of each mounting plate, clamping studs provided on the upper end of each guide block, clamping studs located inside the mounting holes, clamping studs threadedly connected to the guide blocks, knobs fixedly provided on the upper end of each clamping stud, the bottom of each knob abutting against the upper end face of the mounting plate, a housing fixedly provided on the upper end face of the crossbeam, telescopic plates slidably provided on both sides of the housing, and a square cylinder fixedly provided at one end of each telescopic plate passing through the housing.

[0006] The present invention is further configured such that square blocks are slidably provided inside the square tubes, auxiliary plates are fixedly provided on the outer walls of the square blocks, sliding holes are correspondingly provided on the outer walls of the square tubes, the auxiliary plates are slidably installed with the sliding holes, and a first cylinder is fixedly provided at the bottom of the telescopic plate, the output end of the first cylinder is fixedly connected to the auxiliary plate.

[0007] The present invention is further configured such that a second cylinder is fixedly provided on the inner wall of the housing and on both sides, and a connecting block is fixedly provided on the upper end surface of the telescopic plate, and the output end of the second cylinder is fixedly connected to the connecting block.

[0008] The present invention is further configured such that a cover plate is provided on the upper end face of the housing, the cover plate is fixedly installed to the housing by bolts, a connecting cylinder is fixedly provided on the upper end face of the cover plate, a connecting column is slidably provided inside the connecting cylinder, and a hydraulic cylinder is fixedly provided on the upper end of the connecting column.

[0009] The present invention is further configured such that through holes are provided on the outer walls of both the connecting column and the connecting cylinder, a pin is slidably provided inside the through hole, and a limiting nut is provided on the outer wall of the connecting cylinder, the limiting nut being threadedly connected to the outer wall of the connecting cylinder.

[0010] The present invention is further configured such that both ends of the pin are in contact with the inner wall of the limiting nut.

[0011] The present invention is further configured such that an external connecting block is fixedly provided at the upper end of the hydraulic cylinder.

[0012] The present invention is further provided that the upper surface of the auxiliary plate is fixedly provided with an anti-slip pad.

[0013] Compared with the prior art, this utility model provides a workpiece gripping device for powder metallurgy, which has the following beneficial effects: By setting up guide grooves, guide blocks, mounting plates, clamping studs, and knobs, when the position of the suction cup needs to be adjusted, the knob can be turned first to disengage the threaded stud upwards. At this time, the knob will be released from its fixation to the mounting plate. Then, the mounting plate and suction cup can be moved by the cooperation of the guide blocks and guide grooves to achieve the adjustment effect. After adjustment, the knob is tightened so that its bottom abuts against the top of the mounting plate, thereby fixing the mounting plate and the strip block, which facilitates subsequent gripping.

[0014] By setting up a telescopic plate, a square cylinder, a square block, an auxiliary plate, and a first cylinder, after the suction cup picks up the workpiece, the user can control the second cylinder to retract the telescopic plate until the auxiliary plate reaches below the workpiece. Then, by controlling the first cylinder, the square block moves inside the square cylinder so that the anti-slip pad at the top of the auxiliary plate contacts the bottom of the workpiece, thereby further securing the workpiece. This increases the safety of the device when gripping and transporting the workpiece, and facilitates subsequent metallurgical work.

[0015] By setting up a connecting cylinder, connecting column, pin, and limiting nut, the user can install the connecting cylinder at the top of the cover plate onto the outside of the connecting column and align the through holes. Then, the pin is inserted into the through hole, and finally the limiting nut is rotated to cover both ends of the pin and prevent it from coming out. At this point, the connection between the hydraulic cylinder and the device can be completed, facilitating subsequent lifting and lowering. Attached Figure Description

[0016] Figure 1 This is an overall schematic diagram of a workpiece gripping device for powder metallurgy in its unused state. Figure 2 This is a schematic diagram showing the installation of the guide groove, guide block, mounting plate, air duct, suction cup, and knob on the strip block; Figure 3 This is a schematic diagram showing the position of the clamping stud at the bottom of the knob; Figure 4 This is a schematic diagram showing the installation positions of the telescopic plate and the second cylinder inside the housing. Figure 5 This is an exploded view showing the installation of the connecting column, connecting cylinder, pin, and limit nut on the hydraulic cylinder.

[0017] In the diagram: 1. Crossbeam; 2. Strip block; 3. Guide groove; 4. Guide block; 5. Mounting plate; 6. Air duct; 7. Suction cup; 8. Mounting hole; 9. Clamping stud; 10. Knob; 11. Housing; 12. Telescopic plate; 13. Square cylinder; 14. Square block; 15. Auxiliary plate; 16. Sliding hole; 17. First cylinder; 18. Second cylinder; 19. Connecting block; 20. Cover plate; 21. Connecting cylinder; 22. Connecting column; 23. Hydraulic cylinder; 24. Through hole; 25. Pin; 26. Limit nut; 27. External block; 28. Anti-slip pad. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0020] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0021] Please see Figure 1-5 A workpiece gripping device for powder metallurgy includes a crossbeam 1. Strip blocks 2 are fixedly mounted on both sides of the lower end face of the crossbeam 1. Guide grooves 3 are formed on the upper end face of each strip block 2. Guide blocks 4 are slidably mounted inside each guide groove 3. Mounting plates 5 are movably mounted on the upper end face of each guide block 4. Air guide pipes 6 are fixedly mounted at both ends of each mounting plate 5. Suction cups 7 are connected to the bottom of each air guide pipe 6. Mounting holes 8 are formed in the middle of each mounting plate 5. Clamping studs 9 are provided at the upper end of each guide block 4, located inside the mounting holes 8 and threadedly connected to the guide blocks 4. A knob 10 is fixedly mounted on the upper end of each clamping stud 9, with the bottom of the knob 10 abutting against the upper end face of the mounting plate 5. A housing 11 is fixedly mounted on the upper end face of the crossbeam 1. Telescopic plates 12 are slidably mounted on both sides of the housing 11. One end of each telescopic plate 12 passes through the housing 11 and is fixedly mounted with a square cylinder 13.

[0022] In this embodiment, square blocks 14 are slidably provided inside the square cylinder 13, and auxiliary plates 15 are fixedly provided on the outer wall of the square blocks 14. Sliding holes 16 are correspondingly opened on the outer wall of the square cylinder 13. The auxiliary plates 15 are slidably installed with the sliding holes 16. The bottom of the telescopic plate 12 is fixedly provided with a first cylinder 17. The output end of the first cylinder 17 is fixedly connected to the auxiliary plate 15. The inner wall of the housing 11 and located on both sides are fixedly provided with a second cylinder 18. The upper end face of the telescopic plate 12 is fixedly provided with a connecting block 19. The output end of the second cylinder 18 is fixedly connected to the connecting block 19. The upper end face of the auxiliary plate 15 is fixedly provided with an anti-slip pad 28.

[0023] More specifically, when the position of the suction cup 7 needs to be adjusted, the knob 10 can be turned first to disengage the threaded post upwards. At this time, the knob 10 will be released from the fixing of the mounting plate 5. Then, the mounting plate 5 and the suction cup 7 can be moved by the cooperation of the guide block 4 and the guide groove 3 to achieve the adjustment effect. After adjustment, the knob 10 is tightened so that its bottom abuts against the upper end of the mounting plate 5, thereby achieving the effect of fixing the mounting plate 5 and the strip block 2, which facilitates subsequent gripping. After the suction cup 7 picks up the workpiece, the user can control the second cylinder 18 to retract the telescopic plate 12 until the auxiliary plate 15 reaches below the workpiece. Then, the user can control the first cylinder 17 to move the square block 14 inside the square cylinder 13 so that the anti-slip pad 28 at the upper end of the auxiliary plate 15 contacts the bottom of the workpiece, thereby further fixing the workpiece and increasing the safety of the device when gripping and transporting the workpiece, which facilitates subsequent metallurgical work.

[0024] Please see Figure 1 and Figure 5 As an embodiment for connecting the device and the hydraulic cylinder 23: a cover plate 20 is provided on the upper end face of the housing 11, and the cover plate 20 is fixedly installed to the housing 11 by bolts. A connecting cylinder 21 is fixedly provided on the upper end face of the cover plate 20. A connecting column 22 is slidably provided inside the connecting cylinder 21. A hydraulic cylinder 23 is fixedly provided on the upper end of the connecting column 22. Through holes 24 are provided on the outer walls of both the connecting column 22 and the connecting cylinder 21. A pin 25 is slidably provided inside the through holes 24. A limiting nut 26 is provided on the outer wall of the connecting cylinder 21. The limiting nut 26 is threadedly connected to the outer wall of the connecting cylinder 21. Both ends of the pin 25 are in contact with the inner wall of the limiting nut 26.

[0025] Specifically, the user can install the connecting cylinder 21 at the upper end of the cover plate 20 onto the outside of the connecting column 22 and align the through hole 24. Then, insert the pin 25 into the through hole 24 and finally rotate the limit nut 26 to cover both ends of the pin 25 to prevent it from coming out. At this point, the connection between the hydraulic cylinder 23 and the device can be completed, facilitating subsequent lifting and lowering.

[0026] Please refer to Figure 1 As a further embodiment for fixing the hydraulic cylinder 23 and the external support: an external block 27 is fixedly provided on the upper end of the hydraulic cylinder 23.

[0027] Specifically, the user can connect the hydraulic cylinder 23 to the outside world through the external block 27 for convenient subsequent use.

[0028] In summary, when using the overall equipment: when it is necessary to adjust the position of the suction cup 7, the knob 10 can be turned first to disengage the threaded post upwards. At this time, the knob 10 will disengage from the mounting plate 5. Then, the mounting plate 5 and the suction cup 7 can be moved by the cooperation of the guide block 4 and the guide groove 3 to achieve the adjustment effect. After adjustment, the knob 10 is tightened so that its bottom abuts against the upper end of the mounting plate 5, thereby fixing the mounting plate 5 and the strip block 2, facilitating subsequent gripping. After the suction cup 7 picks up the workpiece, the telescopic plate 12 can be retracted by controlling the second cylinder 18 until the auxiliary plate 15 reaches below the workpiece, and then... By controlling the first cylinder 17, the square block 14 is moved inside the square cylinder 13 so that the anti-slip pad 28 at the upper end of the auxiliary plate 15 contacts the bottom of the workpiece, thereby further fixing the workpiece and increasing the safety of the device when gripping and conveying the workpiece, facilitating subsequent metallurgical work. When connecting to the outside, the connecting cylinder 21 at the upper end of the cover plate 20 can be installed on the outside of the connecting column 22 and the through hole 24 can be aligned. Then, the pin 25 is inserted into the through hole 24, and finally the limit nut 26 is rotated to cover both ends of the pin 25 to prevent it from coming out. At this time, the connection between the hydraulic cylinder 23 and the device can be completed, which is convenient for subsequent use.

[0029] In all the solutions mentioned above, for connections between two components, welding, bolt and nut connection, bolt or screw connection, or other known connection methods can be selected according to the actual situation. These will not be elaborated here. For all fixed connections mentioned above, welding is preferred. The above are merely preferred embodiments of this application and are not intended to limit this utility model. Although this application has been described in detail with reference to examples, those skilled in the art can still modify the technical solutions described in the foregoing examples or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A workpiece gripping device for powder metallurgy, comprising a crossbeam (1), characterized in that: The lower end face of the crossbeam (1) is fixedly provided with strip blocks (2) on both sides. The upper end face of each strip block (2) is provided with a guide groove (3). The guide groove (3) is slidably provided with a guide block (4) inside. The upper end face of each guide block (4) is movably provided with a mounting plate (5). Both ends of the mounting plate (5) are fixedly provided with air guide pipes (6). The bottom of each air guide pipe (6) is connected to a suction cup (7). The middle position of each mounting plate (5) is provided with a mounting hole (8). The upper end of each guide block (4) is provided with a pressure... Tightening studs (9) are all located inside the mounting holes (8). The tightening studs (9) are all threadedly connected to the guide block (4). The upper end of each tightening stud (9) is fixedly provided with a knob (10). The bottom of each knob (10) abuts against the upper end face of the mounting plate (5). The upper end face of the crossbeam (1) is fixedly provided with a housing (11). Both sides of the housing (11) are slidably provided with telescopic plates (12). One end of each telescopic plate (12) passes through the housing (11) and is fixedly provided with a square cylinder (13).

2. The workpiece gripping device for powder metallurgy according to claim 1, characterized in that: The square tube (13) is provided with a square block (14) inside. The square block (14) is provided with an auxiliary plate (15) fixed on its outer wall. The square tube (13) is provided with a corresponding sliding hole (16) on its outer wall. The auxiliary plate (15) is slidably installed with the sliding hole (16). The bottom of the telescopic plate (12) is provided with a first cylinder (17). The output end of the first cylinder (17) is fixedly connected to the auxiliary plate (15).

3. The workpiece gripping device for powder metallurgy according to claim 2, characterized in that: The inner wall of the housing (11) is fixedly provided with a second cylinder (18) on both sides, and the upper end face of the telescopic plate (12) is fixedly provided with a connecting block (19). The output end of the second cylinder (18) is fixedly connected to the connecting block (19).

4. A workpiece gripping device for powder metallurgy according to claim 1, characterized in that: The upper end face of the housing (11) is provided with a cover plate (20), the cover plate (20) and the housing (11) are fixedly installed by bolts, the upper end face of the cover plate (20) is fixedly provided with a connecting cylinder (21), the connecting cylinder (21) is slidably provided with a connecting column (22), and the upper end of the connecting column (22) is fixedly provided with a hydraulic cylinder (23).

5. A workpiece gripping device for powder metallurgy according to claim 4, characterized in that: Both the connecting column (22) and the connecting cylinder (21) have through holes (24) on their outer walls. A pin (25) is slidably provided inside the through hole (24). A limiting nut (26) is provided on the outer wall of the connecting cylinder (21). The limiting nut (26) is threadedly connected to the outer wall of the connecting cylinder (21).

6. A workpiece gripping device for powder metallurgy according to claim 5, characterized in that: Both ends of the pin (25) are in contact with the inner wall of the limiting nut (26).

7. A workpiece gripping device for powder metallurgy according to claim 4, characterized in that: An external block (27) is fixedly provided at the upper end of the hydraulic cylinder (23).

8. A workpiece gripping device for powder metallurgy according to claim 2, characterized in that: The upper surface of each auxiliary plate (15) is fixedly provided with anti-slip pads (28).

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