Rotary grabbing device

Abstract

The utility model relates to the technical field of grabbing devices, and discloses a rotary grabbing device which comprises a grabbing structure mother frame, a driving grabbing assembly is arranged on the grabbing structure mother frame, a shell cover is arranged on the driving grabbing assembly, a top cover is installed on the top of the shell cover, an electric sliding ring is arranged on the inner side of the top cover, and the electric sliding ring is arranged on the outer side of the shell cover. A fixing sleeve is fixedly installed on the top of the grabbing structure mother frame, and five sets of sliding grooves are formed in the surface of the grabbing structure mother frame. The first motor serves as a power source to drive the main bevel gear to rotate, the main bevel gear drives the five sets of auxiliary bevel gears connected with the main bevel gear to rotate, the five sets of auxiliary bevel gears drive the lead screws connected with the auxiliary bevel gears to rotate, and the lead screws drive the lead screw threaded sliding blocks to be limited by the connecting sliding rods and the sliding grooves, so that the clamping claws are driven to move. And by changing the distance between the clamping claws and the convex bodies, the blocks are grabbed, and the effect of grabbing the multiple square objects at a time is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of grabbing devices, in particular to a rotary grabbing device. Background Art

[0002] In the industrial production process, many production processes require the grasping of workpieces. At present, conventional devices used to grasp the target objects include electromagnets, pneumatic grippers, three-jaw chucks, suction cups, etc. However, these devices cannot grasp multiple square objects at one time. When the gripper grasps, it cannot align the objects well, which easily causes the grasped objects to fall. Therefore, we propose a rotary grasping device. Utility Model Content

[0003] The purpose of the utility model is to provide a rotary grabbing device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rotary grabbing device, comprising a grabbing structure mother frame, a driving grabbing assembly is arranged on the grabbing structure mother frame, an outer shell cover is arranged on the driving grabbing assembly, a top cover is installed on the top of the outer shell cover, an electric slip ring is arranged on the inner side of the top cover, a fixed sleeve is fixedly installed on the top of the grabbing structure mother frame, five groups of slide grooves are opened on the surface of the grabbing structure mother frame, and a convex body is fixedly connected to the bottom of the grabbing structure mother frame; the driving grabbing assembly includes a driving grabbing part 1 arranged on the fixing sleeve, and a driving grabbing part 2 arranged on the fixing sleeve.

[0005] Preferably, the driving and grasping part 1 specifically includes:

[0006] Motor No. 1 is fixedly mounted on the top of the fixing sleeve, and a motor interface is provided on the top of the motor No. 1;

[0007] The fixing seat is integrally connected to the outer wall of the mother frame of the grasping structure.

[0008] Preferably, the output end of the No. 1 motor is fixedly connected to a main bevel gear via a shaft, the outer wall of the main bevel gear is meshingly connected to five sets of sub-bevel gears, and a screw is fixedly connected to the inner hole of the sub-bevel gear.

[0009] Preferably, the other end of the screw rod passes through the grabbing structure mother frame and extends to the outside, and is rotatably connected to the fixed seat through a bearing.

[0010] Preferably, the outer wall of the screw rod is threadedly connected to a screw rod threaded slider, the bottom of the screw rod threaded slider is fixedly connected to a connecting slide rod, the bottom end of the connecting slide rod extends to the bottom of the slide groove and is fixedly connected to a clamping claw.

[0011] Preferably, the second driving and grasping part includes:

[0012] The second motor is fixedly mounted on the top of the fixed sleeve, and a motor interface is provided on the top of the second motor;

[0013] Thin-walled bearing, set at the bottom of the cylindrical internal gear.

[0014] Preferably, the output end of the second motor is fixedly connected to a cylindrical external gear via a shaft, the outer wall of the cylindrical external gear is meshingly connected to a cylindrical internal gear, and the bottom of the cylindrical internal gear is rotatably connected to the mother frame of the grasping structure via a thin-walled bearing.

[0015] Preferably, a bearing inner ring fixing sleeve is fixedly mounted on the inner ring of the thin-walled bearing, a bearing outer ring bracket is mounted on the bottom of the bearing inner ring fixing sleeve, and the bearing outer ring bracket is mounted on the cylindrical internal gear.

[0016] The utility model provides a rotary grabbing device, which has the following beneficial effects:

[0017] (1) The utility model uses a No. 1 motor as a power source to drive the main bevel gear to rotate, and the main bevel gear drives the five sets of sub-bevel gears connected to it to rotate, and the five sets of sub-bevel gears drive the screw connected to it to rotate, and the screw drives the screw thread slider to move under the limit of the connecting slide rod and the slide groove, thereby driving the clamping claw to move, and by changing the distance between the clamping claw and the convex body, the object is grasped, thereby achieving the effect of grasping multiple blocks of objects at one time.

[0018] (2) The utility model uses the second motor as a power source to drive the cylindrical outer gear to rotate, and the cylindrical outer gear drives the cylindrical inner gear to rotate, thereby causing the entire lower part to move relative to the cylindrical inner gear, so that the lower part can rotate freely and the gripper can align the object. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the drive grabbing component of the utility model;

[0021] Figure 3 This is a view of the fixed sleeve of the utility model;

[0022] Figure 4 This is a schematic structural view of the drive grabbing part of the utility model;

[0023] Figure 5 This is a schematic view of the second structure of the drive grabbing part of the utility model.

[0024] In the figure: 111 grasping structure mother frame, 112 outer shell cover, 113 top cover, 114 electric slip ring, 115 fixing sleeve, 116 motor interface, 2 drive grasping assembly, 21 drive grasping part one, 22 drive grasping part two, 211 No. 1 motor, 212 main bevel gear, 213 secondary bevel gear, 214 lead screw, 215 fixing seat, 216 lead screw thread slider, 217 connecting slide rod, 218 clamping claw, 221 No. 2 motor, 222 cylindrical outer gear, 223 cylindrical inner gear, 224 thin-walled bearing, 225 bearing inner ring fixing sleeve, 226 bearing outer ring bracket. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0027] Example 1

[0028] A preferred embodiment of the rotary grabbing device provided by the utility model is as follows Figure 1-5 As shown: a rotary grabbing device comprises a grabbing structure mother frame 111, a driving grabbing assembly 2 is arranged on the grabbing structure mother frame 111, an outer shell cover 112 is arranged on the driving grabbing assembly 2, a top cover 113 is installed on the top of the outer shell cover 112, an electric slip ring 114 is arranged on the inner side of the top cover 113, a fixing sleeve 115 is fixedly installed on the top of the grabbing structure mother frame 111, five groups of sliding grooves are opened on the surface of the grabbing structure mother frame 111, and a convex body is fixedly connected to the bottom of the grabbing structure mother frame 111; an electric slip ring 114 is arranged, and a slip ring structure is used to simplify the problem that the device cannot rotate in one direction all the time due to internal wiring.

[0029] The driving grabbing assembly 2 includes a driving grabbing portion 1 21 disposed on the fixing sleeve 115 and a driving grabbing portion 22 disposed on the fixing sleeve 115;

[0030] The driving grasping part 21 specifically includes:

[0031] The first motor 211 is fixedly mounted on the top of the fixing sleeve 115, and a motor interface 116 is provided on the top of the first motor 211;

[0032] A fixing seat 215, integrally connected to the outer wall of the grabbing structure mother frame 111;

[0033] The output end of the No. 1 motor 211 is fixedly connected to the main bevel gear 212 through a shaft, and the outer wall of the main bevel gear 212 is meshed with five sets of sub-bevel gears 213, and the inner hole of the sub-bevel gear 213 is fixedly connected to a screw rod 214, and the other end of the screw rod 214 passes through the grasping structure mother frame 111 and extends to the outside, and is rotatably connected to the fixed seat 215 through a bearing, and the outer wall of the screw rod 214 is threadedly connected to a screw rod thread slider 216, and the bottom of the screw rod thread slider 216 is fixedly connected to a connecting slide rod 217, and the bottom end of the connecting slide rod 217 extends to the bottom of the slide groove and is fixedly connected to a clamping claw 218;

[0034] Furthermore, in this embodiment, the No. 1 motor 211 is used as a power source to drive the main bevel gear 212 to rotate, and the main bevel gear 212 drives the five sets of sub-bevel gears 213 connected thereto to rotate, and the five sets of sub-bevel gears 213 drive the screw rod 214 connected thereto to rotate, and the screw rod 214 drives the screw threaded slider 216 under the limit of the connecting slide rod 217 and the slide groove, thereby driving the clamping claw 218 to move, and by changing the distance between the clamping claw 218 and the protrusion, the object is grasped, thereby achieving the effect of grasping multiple block objects at one time.

[0035] Example 2

[0036] Based on Example 1, a preferred embodiment of a rotary grabbing device provided by the present invention is as follows: Figure 1-5 As shown: the driving grasping part 22 includes:

[0037] The second motor 221 is fixedly mounted on the top of the fixing sleeve 115, and a motor interface 116 is provided on the top of the second motor 221;

[0038] The output end of the No. 2 motor 221 is fixedly connected to the cylindrical outer gear 222 through an axis, and the outer wall of the cylindrical outer gear 222 is meshingly connected to the cylindrical inner gear 223. The bottom of the cylindrical inner gear 223 is rotatably connected to the grasping structure mother frame 111 through a thin-walled bearing 224. The inner ring of the thin-walled bearing 224 is fixedly installed with a bearing inner ring fixing sleeve 225. The bottom of the bearing inner ring fixing sleeve 225 is provided with a bearing outer ring bracket 226, and the bearing outer ring bracket 226 is installed on the cylindrical inner gear 223.

[0039] Furthermore, in this embodiment, the second motor 221 is used as a power source to drive the cylindrical outer gear 222 to rotate, and the cylindrical outer gear 222 drives the cylindrical internal gear 223 to rotate, thereby causing the entire lower part to move relative to the cylindrical internal gear 223, and the free rotation of the lower part can be achieved so that the gripper can align the object block.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A rotary grabbing device, comprising a grabbing structure mother frame (111), characterized in that: A driving grabbing assembly (2) is arranged on the grabbing structure mother frame (111), an outer shell cover (112) is arranged on the driving grabbing assembly (2), a top cover (113) is installed on the top of the outer shell cover (112), an electric slip ring (114) is arranged on the inner side of the top cover (113), a fixing sleeve (115) is fixedly installed on the top of the grabbing structure mother frame (111), five groups of sliding grooves are opened on the surface of the grabbing structure mother frame (111), and a convex body is fixedly connected to the bottom of the grabbing structure mother frame (111); the driving grabbing assembly (2) comprises a driving grabbing part 1 (21) arranged on the fixing sleeve (115), and a driving grabbing part 2 (22) arranged on the fixing sleeve (115).

2. A rotary grabbing device according to claim 1, characterized in that: The driving and grasping part 1 (21) specifically includes: A first motor (211) is fixedly mounted on the top of the fixing sleeve (115), and a motor interface (116) is provided on the top of the first motor (211); The fixing seat (215) is integrally connected to the outer wall of the grabbing structure mother frame (111).

3. A rotary grabbing device according to claim 2, characterized in that: The output end of the first motor (211) is fixedly connected to a main bevel gear (212) via a shaft, the outer wall of the main bevel gear (212) is meshedly connected to five sets of auxiliary bevel gears (213), and the inner holes of the auxiliary bevel gears (213) are fixedly connected to a screw rod (214).

4. A rotary grabbing device according to claim 3, characterized in that: The other end of the screw rod (214) passes through the grabbing structure mother frame (111) and extends to the outside, and is rotatably connected to the fixing seat (215) via a bearing.

5. A rotary grabbing device according to claim 3, characterized in that: The outer wall of the screw rod (214) is threadedly connected to a screw rod thread slider (216), and the bottom of the screw rod thread slider (216) is fixedly connected to a connecting slide rod (217). The bottom end of the connecting slide rod (217) extends to the bottom of the slide groove and is fixedly connected to a clamping claw (218).

6. A rotary grabbing device according to claim 1, characterized in that: The second driving and grasping part (22) comprises: The second motor (221) is fixedly mounted on the top of the fixing sleeve (115), and a motor interface (116) is provided on the top of the second motor (221); A thin-walled bearing (224) is arranged at the bottom of the cylindrical internal gear (223).

7. A rotary grabbing device according to claim 6, characterized in that: The output end of the second motor (221) is fixedly connected to a cylindrical external gear (222) via a shaft, the outer wall of the cylindrical external gear (222) is meshingly connected to a cylindrical internal gear (223), and the bottom of the cylindrical internal gear (223) is rotationally connected to the grasping structure mother frame (111) via a thin-walled bearing (224).

8. A rotary grabbing device according to claim 6, characterized in that: The inner ring of the thin-walled bearing (224) is fixedly mounted with a bearing inner ring fixing sleeve (225), the bottom of the bearing inner ring fixing sleeve (225) is provided with a bearing outer ring bracket (226), and the bearing outer ring bracket (226) is mounted on the cylindrical internal gear (223).

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