Annular part centering claw disc

Abstract

The utility model discloses an annular piece centering claw disc, and relates to the technical field of claw discs. The device comprises a connecting arm, the lower side of the connecting arm is fixedly connected with a shell, a grabbing mechanism is arranged at the middle end of the shell and comprises a power unit, a transmission unit, an adjusting unit, a limiting unit, a rolling unit and a clamping unit, the power unit is arranged in the end, close to the shell, of the connecting arm, and the transmission unit is arranged at the end, close to the shell, of the power unit. And the adjusting unit is arranged on the side opposite to the transmission unit, the limiting unit is arranged on the outer side of the adjusting unit, the rolling unit is arranged at the middle end of the limiting unit, and the clamping unit is arranged at the end, away from the shell, of the adjusting unit. And therefore, more types of annular pieces can be grabbed, and the applicability of the claw disc is improved.

Description

Technical Field

[0001] This utility model relates to the field of claw disc technology, specifically a ring-shaped centering claw disc. Background Technology

[0002] A centering jaw disc is a device for gripping parts, making it convenient for handling parts.

[0003] A centering gripper typically consists of a housing, a motor, a transmission assembly, and grippers. When centering and gripping a ring-shaped part, the motor usually drives the grippers to move through the transmission assembly, so that the grippers clamp and limit the part. Then, the gripper moves the part to transport it.

[0004] Traditional centering jaw disks typically use two side grippers to grasp ring-shaped parts, resulting in poor gripping stability. Furthermore, when dealing with irregular ring-shaped parts, it is inconvenient to automatically adjust to their shape, making it difficult for the centering jaw disk to grasp irregular ring-shaped parts. To address these issues, the inventors proposed a ring-shaped part centering jaw disk. Utility Model Content

[0005] To address the problem of unstable gripping of irregular ring-shaped parts by the ring-shaped centering claw disk, the purpose of this utility model is to provide a ring-shaped centering claw disk.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: it includes a connecting arm, the lower side of which is fixedly connected to the outer shell, and a gripping mechanism is provided in the middle of the outer shell. The gripping mechanism includes a power unit, a transmission unit, an adjustment unit, a limiting unit, a rolling unit, and a locking unit. The power unit is provided inside the connecting arm near the outer shell, the transmission unit is provided at the end of the power unit near the outer shell, the adjustment unit is provided on the opposite side of the transmission unit, the limiting unit is provided on the outside of the adjustment unit, the rolling unit is provided in the middle of the limiting unit, and the locking unit is provided at the end of the adjustment unit away from the outer shell.

[0007] Preferably, the power unit includes a motor and a transmission rod, and the motor is fixedly connected to the end of the connecting arm near the housing. The output shaft of the motor is fixedly connected to the transmission rod, and the end of the transmission rod away from the motor is inserted into the housing. The transmission unit includes a first gear and a second gear, and the first gear is fixedly connected to the side of the transmission rod away from the motor. The second gear meshes with the outer side of the end of the first gear away from the transmission rod.

[0008] Preferably, the adjusting unit includes an external threaded rod, an internal threaded plate, and a retaining plate. The external threaded rod is fixedly connected to the side of the second gear away from the first gear. The end of the external threaded rod away from the second gear is connected to the outer casing. An internal threaded plate is sleeved on the outer side of the middle end of the external threaded rod. The retaining plate is fixedly connected to the side of the internal threaded plate away from the external threaded rod. The limiting unit includes a limiting block and a rubber pad. The limiting blocks are fixedly connected to both sides of the internal threaded plate. The end of the limiting block away from the internal threaded plate is inserted and slides inside the outer casing. The rubber pads are fixedly connected to both sides of the limiting block.

[0009] Preferably, the rolling unit includes a roller and a limiting rod, and the roller is inserted inside the limiting block. The limiting rod is fixed to both sides of the roller, and the side of the limiting rod away from the roller is rotated onto the limiting block. The locking unit includes a locking rod and a spring, and the locking rod is inserted inside one end of the locking plate. The spring is inserted inside the middle end of the locking rod, and the end of the spring away from the locking rod is fixed to the locking plate. The end of the spring inserted inside the locking rod is fixed to the locking rod. Three sets of second gears mesh outside the first gear, and the three sets of second gears are equidistantly arranged.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. By setting up a gripping mechanism, when gripping irregular ring-shaped parts, the robotic arm first moves the connecting arm and the outer shell to the upper side of the irregular ring-shaped part, so that the lower side of the outer shell fits against the upper side of the irregular ring-shaped part. Then, the power unit is activated, and the power unit drives the adjustment unit to operate through the transmission unit. With the assistance of the limiting unit and the rolling unit, the adjustment unit drives the positioning unit to approach the irregular ring-shaped part. When the outer side of the positioning unit fits against the irregular ring-shaped part, the irregular ring-shaped part squeezes the positioning unit. After the positioning unit limits the irregular ring-shaped part, the power unit is turned off. Then, the robotic arm drives the connecting arm and the outer shell to move, so that the connecting arm and the outer shell can transport the irregular ring-shaped part through the positioning unit, which enhances the gripping stability. At the same time, it can automatically adjust according to the shape of the irregular ring-shaped part, thereby facilitating the gripping of more types of ring-shaped parts and improving the applicability of the gripper plate. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is an enlarged schematic diagram of the structure of the power unit and transmission unit of this utility model.

[0015] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0016] Figure 4 This is an enlarged schematic diagram of the structure of the card slot unit of this utility model.

[0017] In the diagram: 1. Connecting arm; 2. Housing; 3. Motor; 4. Transmission rod; 5. First gear; 6. Second gear; 7. External threaded rod; 8. Internal threaded plate; 9. Clamping plate; 10. Limiting block; 11. Rubber pad; 12. Roller; 13. Limiting rod; 14. Clamping rod; 15. Spring. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1: As Figure 1-4 As shown, this utility model provides a ring-shaped centering claw disc, including a connecting arm 1, with a housing 2 fixedly connected to the lower side of the connecting arm 1, and a gripping mechanism provided at the middle of the housing 2. The gripping mechanism includes a power unit, a transmission unit, an adjustment unit, a limiting unit, a rolling unit, and a locking unit. The power unit is provided inside the connecting arm 1 near the housing 2, the transmission unit is provided at the end of the power unit near the housing 2, the adjustment unit is provided on the opposite side of the transmission unit, the limiting unit is provided on the outside of the adjustment unit, the rolling unit is provided at the middle of the limiting unit, and the locking unit is provided at the end of the adjustment unit away from the housing 2.

[0020] By adopting the above technical solution, when gripping irregular ring parts, the robotic arm first moves the connecting arm 1 and the outer shell 2 to the upper side of the irregular ring part, so that the lower side of the outer shell 2 fits against the upper side of the irregular ring part. Then, the power unit is activated, and the power unit drives the adjustment unit to operate through the transmission unit. With the assistance of the limiting unit and the rolling unit, the adjustment unit drives the positioning unit to approach the irregular ring part. When the outer side of the positioning unit fits against the irregular ring part, the irregular ring part squeezes the positioning unit. After the positioning unit limits the irregular ring part, the power unit is turned off. Then, the robotic arm moves the connecting arm 1 and the outer shell 2, so that the connecting arm 1 and the outer shell 2 transport the irregular ring part through the positioning unit. By setting up a gripping mechanism, the gripping stability is enhanced. At the same time, it can automatically adjust according to the shape of the irregular ring part, thereby facilitating the gripping of more types of ring parts and improving the applicability of the claw plate.

[0021] The power unit includes a motor 3 and a transmission rod 4. The motor 3 is fixedly connected to the end of the connecting arm 1 near the housing 2. The output shaft of the motor 3 is fixedly connected to the transmission rod 4, and the end of the transmission rod 4 away from the motor 3 is inserted into the housing 2.

[0022] By adopting the above technical solution, the motor 3 is started, and the output shaft of the motor 3 drives the transmission rod 4 to rotate, which facilitates the provision of power output.

[0023] The transmission unit includes a first gear 5 and a second gear 6, and the first gear 5 is fixed to the side of the transmission rod 4 away from the motor 3. The second gear 6 meshes with the outer side of the end of the first gear 5 away from the transmission rod 4.

[0024] By adopting the above technical solution, the transmission rod 4 rotates and drives the first gear 5 to rotate, so that the first gear 5 drives the second gear 6 and the external threaded rod 7 to rotate through meshing with the second gear 6. By setting the first gear 5 and the second gear 6, it is convenient to transmit power.

[0025] The adjustment unit includes an external threaded rod 7, an internal threaded plate 8, and a clamping plate 9. The external threaded rod 7 is fixed to the side of the second gear 6 away from the first gear 5. The end of the external threaded rod 7 away from the second gear 6 is connected to the outer casing 2. The internal threaded plate 8 is sleeved on the outer side of the middle end of the external threaded rod 7. The clamping plate 9 is fixed to the side of the internal threaded plate 8 away from the external threaded rod 7.

[0026] By adopting the above technical solution, the rotation of the second gear 6 drives the external thread rod 7 to rotate, so that the external thread rod 7 meshes with the internal thread plate 8, causing the internal thread plate 8 to drive the clamping plate 9 to move.

[0027] The limiting unit includes a limiting block 10 and a rubber pad 11. The limiting block 10 is fixedly connected to both sides of the internal thread plate 8. The end of the limiting block 10 away from the internal thread plate 8 is inserted and slidably inserted into the outer shell 2. The rubber pad 11 is fixedly connected to both sides of the limiting block 10.

[0028] By adopting the above technical solution, when the internal thread plate 8 moves, it drives the limiting block 10 and the rubber pad 11 to move, so that the limiting block 10 and the rubber pad 11 limit the movement of the internal thread plate 8.

[0029] The rolling unit includes a roller 12 and a limiting rod 13. The roller 12 is inserted inside the limiting block 10. The limiting rod 13 is fixedly connected to both sides of the roller 12, and the side of the limiting rod 13 away from the roller 12 is connected to the limiting block 10.

[0030] By adopting the above technical solution, when the limiting block 10 moves, it drives the roller 12 and the limiting rod 13 to move, so that the roller 12 rolls against the inner wall of the outer shell 2 under the limitation of the limiting rod 13, and the internal thread plate 8 moves with the help of the rolling of the roller 12.

[0031] The locking unit includes a locking rod 14 and a spring 15. The locking rod 14 is inserted into the opposite end of the locking plate 9, and the spring 15 is inserted into the middle of the locking rod 14. The end of the spring 15 away from the locking rod 14 is fixed to the locking plate 9, and the end of the spring 15 inserted into the locking rod 14 is fixed to the locking rod 14.

[0032] By adopting the above technical solution, the clamping plate 9 drives the rubber pad 114 and the spring 15 to approach the irregular ring part, and the clamping rod 14 limits the protruding part of the irregular ring part.

[0033] The three sets of second gears 6 mesh on the outside of the first gear 5, and the three sets of second gears 6 are equidistant.

[0034] By adopting the above technical solution, the three sets of second gears 6 are equidistantly arranged outside the first gear 5, which facilitates the operation of the three sets of second gears 6 by the first gear 5.

[0035] Working Principle: When gripping an irregular ring-shaped part, the robotic arm first moves the connecting arm 1 and the outer shell 2 to the upper side of the irregular ring-shaped part, so that the lower side of the outer shell 2 fits against the upper side of the irregular ring-shaped part. Then, the motor 3 is started, and the output shaft of the motor 3 drives the transmission rod 4 and the first gear 5 to rotate. After the first gear 5 rotates, it meshes with the second gear 6, which in turn drives the external thread rod 7 to rotate. After the external thread rod 7 rotates, it meshes with the internal thread plate 8, which, with the assistance of the limiting block 10, the rubber pad 11, the roller 12, and the limiting rod 13, moves the clamping plate 9. The limiting block 10 and the rubber pad 11 limit the movement of the internal thread plate 8. At the same time, when the limiting block 10 moves, it drives the roller 12 and the limiting rod 13 to move, so that the roller 12, limited by the limiting rod 13, fits against the inner wall of the outer shell 2. The movement is aided by the rolling of roller 12 to move the internal thread plate 8. When the clamping plate 9 moves the clamping rod 14 and spring 15 close to the irregular ring part, the clamping rod 14 first fits against the irregular ring part. Then, part of the clamping rod 14 is squeezed into the clamping plate 9 by the protruding part of the irregular ring part and compressed into the spring 15. The clamping rod 14 that is not squeezed continues to move closer to the irregular ring part. When the clamping rod 14 wraps around the protruding part of the irregular ring part, the motor 3 is turned off. The mechanical arm drives the connecting arm 1 and the outer shell 2 to move. The outer shell 2 moves the irregular ring part for transport by the clamping plate 9, clamping rod 14 and spring 15. When the irregular ring part is transported to the designated location, the motor 3 is started, so that the output shaft of the motor 3 drives the transmission rod 4 to rotate in the opposite direction, thereby allowing the clamping plate 9 to move the clamping rod 14 and spring 15 back to their original position and separate from the irregular ring part.

[0036] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A ring-shaped centering claw disc, comprising a connecting arm (1), characterized in that: The lower side of the connecting arm (1) is fixedly connected to the outer shell (2), and a gripping mechanism is arranged at the middle end of the outer shell (2), the gripping mechanism comprising a power unit, a transmission unit, an adjustment unit, a limit unit, a rolling unit and a locking unit, and the power unit is arranged inside the end of the connecting arm (1) close to the outer shell (2), the transmission unit is arranged at the end of the power unit close to the outer shell (2), and the adjustment unit is arranged on the side opposite to the transmission unit, the limit unit is arranged outside the adjustment unit, and the rolling unit is arranged at the middle end of the limit unit, and the locking unit is arranged at the end of the adjustment unit away from the outer shell (2).

2. The ring-shaped centering claw disc according to claim 1, characterized in that: The power unit comprises a motor (3) and a transmission rod (4), wherein an end of the connecting arm (1) close to the housing (2) is internally fixedly connected to the motor (3), an output shaft of the motor (3) is fixedly connected to the transmission rod (4), and an end of the transmission rod (4) away from the motor (3) is inserted into the housing (2).

3. The ring-shaped centering claw disc according to claim 2, characterized in that: The transmission unit comprises a first gear (5) and a second gear (6), wherein a side of the transmission rod (4) away from the motor (3) is fixedly connected to the first gear (5), and an end of the first gear (5) away from the transmission rod (4) is meshed with the second gear (6) on its outer side.

4. The ring-shaped centering claw disc according to claim 3, characterized in that: The adjustment unit comprises an externally threaded rod (7), an internally threaded plate (8) and a clamping plate (9), and a side of the second gear (6) away from the first gear (5) is fixedly connected to the externally threaded rod (7), an end of the externally threaded rod (7) away from the second gear (6) is transferred to the housing (2), and a meshing internally threaded plate (8) is sleeved on the outer side of the middle end of the externally threaded rod (7), and a side of the internally threaded plate (8) away from the externally threaded rod (7) is fixedly connected to the clamping plate (9).

5. The ring-shaped centering claw disc according to claim 4, characterized in that: The limiting unit comprises a limiting block (10) and a rubber pad (11), and the limiting blocks (10) are fixedly connected to both sides of the internal thread plate (8), and one end of the limiting block (10) away from the internal thread plate (8) is inserted and slidably arranged in the outer shell (2), and the rubber pads (11) are fixedly connected to both sides of the limiting block (10).

6. The ring-shaped centering claw plate according to claim 5, characterized in that: The rolling unit comprises a roller (12) and a limiting rod (13), and the roller (12) is inserted into the limiting block (10), the limiting rod (13) is fixedly connected to both sides of the roller (12), and the side of the limiting rod (13) away from the roller (12) is connected to the limiting block (10).

7. The ring-shaped centering claw disc according to claim 4, characterized in that: The clamping unit comprises a clamping rod (14) and a spring (15), wherein the clamping rod (14) is inserted into the opposite end of the clamping plate (9), the spring (15) is inserted into the middle end of the clamping rod (14), and the end of the spring (15) away from the clamping rod (14) is fixedly connected to the clamping plate (9), and the end of the spring (15) inserted into the clamping rod (14) is fixedly connected to the clamping rod (14).

8. The ring-shaped centering claw plate according to claim 3, characterized in that: The three groups of the second gears (6) are meshed on the outside of the first gear (5), and the three groups of the second gears (6) are arranged at equal distances.

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