Industrial robot rotating shaft locking mechanism

Abstract

The utility model relates to the technical field of locking mechanisms, and discloses an industrial robot rotating shaft locking mechanism which comprises a rotating shaft, a fixing cover is arranged on the outer side of the rotating shaft, and a containing groove is formed in the fixing cover. The driving motor is started to drive the threaded rod to rotate, when the threaded rod rotates in the threaded groove, the control block can be driven to move leftwards, when the control block moves leftwards, the upper clamping plate and the lower clamping plate can be pulled to gather inwards through the connecting rods on the two sides of the control block, and the tops of the two clamping plates can clamp the rotating rotating shaft; meanwhile, along with leftward movement of the control block, the ejector block is pushed to move leftward, the side wall of the ejector block slowly pushes the connecting block to the rotating shaft, and when the ejector block moves to the leftmost end, a clamping block at the top of the connecting block is clamped into a groove in the rotating shaft, so that the rotating shaft is locked; and therefore, the effect that the service life of the rotating shaft is shortened due to the fact that deformation is caused to the outer side when the rotating shaft is locked can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a locking mechanism technical field especially relates to a kind of industrial robot rotary shaft locking mechanism. BACKGROUND

[0002] Rotary shaft system is widely used in industrial production, and is a common component of various machines. However, in many cases, the rotary shaft needs to be locked when it rotates to a certain position.

[0003] The existing locking structure is to fix the outside of the rotary shaft, which quickly locks the robot rotary shaft. This locking method directly fixes the clamping block with the rotating rotary shaft. Long-term use can cause deformation of the outside of the rotary shaft, affecting the service life of the rotary shaft. SUMMARY

[0004] The utility model aims at solving the shortcomings in the prior art and provides an industrial robot rotary shaft locking mechanism.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] An industrial robot rotary shaft locking mechanism includes a rotary shaft, a fixed cover is provided on the outside of the rotary shaft, a placing groove is formed in the fixed cover, the side wall of the fixed cover can be clamped in the placing groove, a drive motor is fixedly installed on the outside of the fixed cover, a limiting groove is formed in the middle of the placing groove, clamping plates are arranged on the upper and lower sides of the limiting groove, a connecting block is arranged on the left side of the placing groove corresponding to the position of the rotary shaft, a clamping block is movably installed on the top of the connecting block, and the clamping block can be clamped in the groove on the rotary shaft.

[0007] As a further scheme of the utility model, a control block is arranged in the placing groove, the control block is between the two clamping plates, a fixed shaft is fixedly installed on the control block corresponding to the clamping plate, a connecting rod is movably installed on the fixed shaft, a connecting shaft is fixedly installed on the side of the clamping plate close to the control block, the other end of the connecting rod is movably connected with the connecting shaft, a threaded rod is movably installed in the placing groove corresponding to the position of the control block, the threaded rod is fixedly connected with the output end of the drive motor, a threaded groove is formed in the right side end of the control block, and the control block is screw-connected between the threaded groove and the threaded rod.

[0008] As a further scheme of the utility model, a rubber plate is fixedly installed on the inside of the top of the clamping plate, a movable groove is formed in the fixed cover corresponding to the position of the clamping plate, a movable block is fixedly installed at the tail of the clamping plate, and the movable block can be movably clamped in the movable groove.

[0009] As a further scheme of the utility model, a connecting groove is formed on the fixing cover corresponding to the position of the connecting block, the bottom of the connecting block is movably installed in the connecting groove, and a second spring is fixedly installed between the bottom of the connecting block and the inner wall of the connecting groove.

[0010] As a further scheme of the utility model, a top block is fixedly installed on the left top of the control block, the side wall of the top block is in contact with the back of the connecting block, and the side of the top block in contact with the connecting block is inclined by 30° with respect to the connecting block.

[0011] As a further scheme of the utility model, a first spring is fixedly installed between the back of the clamping block and the connecting block.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] In the utility model, the threaded rod is driven to rotate by the driving motor, the control block is moved to the left when the threaded rod rotates in the threaded groove, the upper and lower clamping plates are gathered by the connecting rods on the two sides of the control block when the control block moves to the left, the rotating shaft is clamped by the top of the two clamping plates, the rotating shaft is stopped from rotating, the top block is moved to the left along with the control block, the side wall of the top block slowly pushes the connecting block to the rotating shaft, the clamping block on the top of the connecting block is clamped into the groove on the rotating shaft when the top block moves to the left end, and the rotating shaft is locked, so that the effect that the rotating shaft is not deformed outwardly when being locked and the service life of the rotating shaft is reduced is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The utility model provides an overall structure schematic diagram of an industrial robot rotating shaft locking mechanism;

[0015] Figure 2 The utility model provides an internal structure schematic diagram of an industrial robot rotating shaft locking mechanism;

[0016] Figure 3 The utility model provides Figure 2 An enlarged view of A in the utility model;

[0017] Figure 4 The utility model provides an overall structure schematic diagram of an industrial robot rotating shaft locking mechanism;

[0018] In the drawing: 1, rotating shaft; 2, fixing cover; 3, driving motor; 4, placing groove; 5, threaded rod; 6, control block; 7, clamping plate; 8, movable groove; 9, top block; 10, rubber plate; 11, connecting block; 12, clamping block; 13, first spring; 14, connecting groove; 15, second spring; 16, connecting shaft; 17, fixed shaft; 18, connecting rod; 19, movable block; 20, threaded groove; 21, limiting groove. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0020] In the description of the utility model, it should be pointed out that the directions or position relations indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like are the directions or position relations shown based on the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the utility model, it should be pointed out that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be broadly understood, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium; can be the communication inside two elements. For ordinary skilled persons in the art, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0022] Reference Figure 1 - Figure 4 A kind of industrial robot rotating shaft locking mechanism, including rotating shaft 1, the outside of rotating shaft 1 is provided with fixed cover 2, fixed cover 2 is set with placing groove 4, the side wall of fixed cover 2 can be engaged in placing groove 4, fixed cover 2 is fixedly installed with drive motor 3 on the outside, the middle of placing groove 4 is set with limiting slot 21, the upper and lower sides in limiting slot 21 are provided with clamping plate 7, the left side in placing groove 4 is set with connecting block 11 corresponding to the position of rotating shaft 1, the top of connecting block 11 is movably installed with clamping block 12, clamping block 12 can be clamped in the groove on rotating shaft 1.

[0023] In the embodiment, the control block 6 is arranged in the placing groove 4, the control block 6 is between the two clamping plates 7, the fixed shaft 17 is movably arranged on the control block 6 and corresponds to the clamping plate 7, the connecting rod 18 is movably arranged on the fixed shaft 17, the connecting shaft 16 is movably arranged on the side of the clamping plate 7 close to the control block 6, the other end of the connecting rod 18 is movably connected with the connecting shaft 16, the threaded rod 5 is movably arranged in the right side of the placing groove 4 and corresponds to the control block 6, the threaded rod 5 is fixedly connected with the output end of the driving motor 3, the right side end of the control block 6 is provided with the threaded groove 20, the control block 6 is threadedly connected with the threaded rod 5 through the threaded groove 20, the threaded rod 5 is driven to rotate by starting the driving motor 3, since the two sides of the control block 6 are connected with the clamping plate 7, the control block 6 can be driven to move leftwards when the threaded rod 5 rotates in the threaded groove 20, the two clamping plates 7 can be pulled to gather in the middle through the connecting rod 18 on the two sides of the control block 6 when the control block 6 moves leftwards, at this time, the top of the two clamping plates 7 can clamp the rotating shaft 1 to stop the rotation of the rotating shaft 1.

[0024] In the embodiment, the inner side of the top of the clamping plate 7 is fixedly provided with the rubber plate 10, the movable groove 8 is arranged on the fixed cover 2 and corresponds to the clamping plate 7, the movable block 19 is fixedly arranged on the tail of the clamping plate 7 and can be movably clamped in the movable groove 8, the rubber plate 10 on the top of the clamping plate 7 can exert a large friction force on the rotating shaft 1 under the condition of protecting the rotating shaft 1 again, so that the rotating rotating shaft 1 is quickly stopped.

[0025] In the embodiment, the connecting groove 14 is arranged on the fixed cover 2 and corresponds to the connecting block 11, the bottom of the connecting block 11 is movably arranged in the connecting groove 14, the second spring 15 is fixedly arranged between the bottom of the connecting block 11 and the inner wall of the connecting groove 14, the connecting block 11 can be automatically pushed to reset through the second spring 15.

[0026] In the embodiment, the top of the left side of the control block 6 is fixedly provided with the top block 9, the side wall of the top block 9 is in contact with the back of the connecting block 11, the side of the top block 9 in contact with the connecting block 11 is inclined by 30° with the connecting block 11, the side wall of the top block 9 can slowly push the connecting block 11 to the rotating shaft 1, the clamping block 12 on the top of the connecting block 11 can be clamped into the groove on the rotating shaft 1 when the top block 9 moves to the leftmost end, and the rotating shaft 1 is locked.

[0027] In the embodiment, the first spring 13 is fixedly arranged between the back of the clamping block 12 and the connecting block 11, the clamping block 12 can be moved to the inside of the connecting block 11 through the first spring 13 when the clamping block 12 is not clamped into the groove on the rotating shaft 1, and the device can be prevented from being stuck.

[0028] From the above description, it can be seen that the above-mentioned embodiments of the utility model realize the following technical effects: when the rotating shaft 1 needs to be locked, the threaded rod 5 is driven to rotate by starting the driving motor 3, since the two sides of the control block 6 are connected with the clamping plates 7, when the threaded rod 5 rotates in the threaded groove 20, the control block 6 can be driven to move left, when the control block 6 moves left, the two clamping plates 7 can be pulled to gather in the middle through the connecting rods 18 on the two sides of the control block 6, at this time, the top of the two clamping plates 7 can clamp the rotating rotating shaft 1, so that the rotating rotating shaft 1 stops rotating, the rotating shaft 1 can be protected by the rubber plate 10 on the top of the clamping plate 7 to apply a large friction force to the rotating shaft 1, so that the rotating rotating shaft 1 stops quickly, at the same time, the control block 6 moves left to push the top block 9 to move left, the side wall of the top block 9 can slowly push the connecting block 11 to the rotating shaft 1, when the top block 9 moves to the leftmost end, the clamping block 12 on the top of the connecting block 11 can be clamped into the groove on the rotating shaft 1, so that the rotating shaft 1 is locked, so that the effect that the rotating shaft 1 can be avoided to deform the outside when locking the rotating shaft 1, so that the service life of the rotating shaft 1 is reduced, when the rotating shaft 1 needs to rotate, the driving motor 3 is reversed, at this time, the threaded rod 5 can drive the control block 6 to move right to reset, at this time, the top block 9 can move right, the connecting block 11 can be automatically reset by the second spring 15, the clamping block 12 at the bottom of the connecting block 11 can be automatically removed from the groove on the rotating shaft 1, then the control block 6 can drive the connecting rod 18 to push the clamping plates 7 on the two sides outward, at this time, the rotating shaft 1 can rotate again.

[0029] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited to the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, under the premise of not departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An industrial robot rotation shaft locking mechanism comprising a rotation shaft (1), characterized in that, The outer side of the rotating shaft (1) is provided with a fixed cover (2), the fixed cover (2) is provided with a placing groove (4), the side wall of the fixed cover (2) can be clamped in the placing groove (4), the outer side of the fixed cover (2) is fixedly installed with a driving motor (3), the middle of the placing groove (4) is provided with a limiting groove (21), the upper and lower sides of the limiting groove (21) are provided with clamping plates (7), the left side of the placing groove (4) is provided with a connecting block (11) corresponding to the rotating shaft (1), the top of the connecting block (11) is movably installed with a clamping block (12), the clamping block (12) can be clamped in the groove on the rotating shaft (1).

2. An industrial robot rotary shaft locking mechanism according to claim 1, characterized in that The placing groove (4) is provided with a control block (6), the control block (6) is between the two clamping plates (7), the control block (6) is fixedly installed with a fixed shaft (17) corresponding to the clamping plate (7), the fixed shaft (17) is movably installed with a connecting rod (18), the side of the clamping plate (7) close to the control block (6) is fixedly installed with a connecting shaft (16), the other end of the connecting rod (18) is movably connected with the connecting shaft (16), the right side of the placing groove (4) is movably installed with a threaded rod (5) corresponding to the control block (6), the threaded rod (5) is fixedly connected with the output end of the driving motor (3), the right end of the control block (6) is provided with a threaded groove (20), and the control block (6) is screwed between the threaded groove (20) and the threaded rod (5).

3. An industrial robot rotary shaft locking mechanism according to claim 1, characterized in that, The inner side of the top of the clamping plate (7) is fixedly installed with a rubber plate (10), the fixed cover (2) is provided with a movable groove (8) corresponding to the clamping plate (7), the tail of the clamping plate (7) is fixedly installed with a movable block (19), and the movable block (19) can be movably clamped in the movable groove (8).

4. An industrial robot rotary shaft locking mechanism according to claim 1, characterized in that, The fixed cover (2) is provided with a connecting groove (14) corresponding to the connecting block (11), the bottom of the connecting block (11) is movably installed in the connecting groove (14), and the second spring (15) is fixedly installed between the bottom of the connecting block (11) and the inner wall of the connecting groove (14).

5. An industrial robot rotary shaft locking mechanism according to claim 2, characterized in that, The left top of the control block (6) is fixedly installed with a top block (9), the side wall of the top block (9) is in contact with the back of the connecting block (11), and the side of the top block (9) in contact with the connecting block (11) is inclined by 30° from the connecting block (11).

6. An industrial robot rotary shaft locking mechanism according to claim 1, characterized in that, The back of the clamping block (12) and the connecting block (11) are fixedly installed with a first spring (13).

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