Turnover mechanism

Abstract

The utility model provides a turnover mechanism, which belongs to the technical field of automation, and comprises a displacement assembly and a clamping assembly, the displacement assembly comprises a first slide rail and a first slide block arranged on the first slide rail along a first direction in a sliding manner; the clamping assembly is rotationally arranged on the first sliding block, the clamping assembly comprises two clamping arms which are opened and closed in the second direction, each clamping arm is provided with at least one clamping jaw which is opened and closed in the first direction, and the clamping jaws on the different clamping arms are oppositely arranged; wherein the second direction is perpendicular to the first direction. Clamping arms of the clamping assembly can be opened and closed in the first direction, so that the side edges of the plate-shaped or sheet-shaped part are prevented from being clamped by clamping the two opposite faces of the plate-shaped or sheet-shaped part within the clamping range of a clamping jaw, and therefore the situation that the side edges of the plate-shaped or sheet-shaped part are not clamped in the overturning process of the part can be avoided by increasing the first contact area with the part and increasing friction force. And slipping off the clamping jaw.

Description

TECHNICAL FIELD

[0001] The utility model belongs to automation technical field, especially, relate to a turnover mechanism. BACKGROUND

[0002] In the full-automatic assembly line processing and production of parts, when assembling or multi-surface detecting parts, it is often necessary to turn over the parts to carry out different processes. Before the turnover device appeared, manual work was mainly used, the automation degree was low, and the production efficiency was low. The existing turnover device greatly solves the problem of automatic turnover of existing parts.

[0003] When the plate-shaped or sheet-shaped parts are turned over, if clamping is unstable, the parts are easy to slip out of the clamping jaw of the turnover device during the turning process. This will bring many unstable factors to the full-automatic assembly line, reduce the practicability of the turnover device and the adaptability to different parts, and this problem needs to be solved urgently. INVENTION CONTENTS

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a turnover mechanism to solve the problem that the parts are easy to slip out of the clamping jaw of the turnover device during the turning process in the prior art.

[0005] To achieve the above-mentioned purpose and other related purposes, the utility model provides a turnover mechanism, which comprises:

[0006] A displacement assembly comprising a first sliding rail and a first sliding block slidingly arranged on the first sliding rail in a first direction;

[0007] A clamping assembly rotatably arranged on the first sliding block, the clamping assembly comprising two clamping arms opening and closing in a second direction, at least one clamping jaw opening and closing in the first direction being arranged on each clamping arm, and the clamping jaws on different clamping arms being oppositely arranged;

[0008] Wherein, the second direction is perpendicular to the first direction.

[0009] Optionally, two clamping jaws are arranged on each clamping arm, and the clamping jaws on different clamping arms are correspondingly arranged.

[0010] Optionally, the clamping jaw comprises a finger air cylinder and two clamping blocks sequentially arranged in the first direction, the two clamping blocks are respectively connected with parallel finger clamps of the finger air cylinder, and the finger air cylinder is used to drive the two clamping blocks to open and close to clamp the parts in the first direction.

[0011] Optionally, the clamping block has a first contact surface in contact with the parts, and an anti-skid rubber is arranged on each first contact surface.

[0012] Optionally, an opening and closing driving member is arranged between the two clamping arms, and the opening and closing driving member is used to drive the two clamping arms to open and close along the second direction.

[0013] Optionally, the opening and closing driving member is a bidirectional cylinder, and each clamping arm is connected with a different output end of the bidirectional cylinder.

[0014] Optionally, the displacement assembly further comprises a second sliding rail extending along the second direction, and the first sliding rail is arranged to slide on the second sliding rail along the second direction.

[0015] Optionally, the turnover mechanism further comprises a placing table, and the placing table is provided with a plurality of placing positions for placing parts, and each placing position is provided with at least three supporting columns extending along the first direction, and the supporting columns are used to support the parts.

[0016] Optionally, each placing position is further provided with a positioning column for positioning the parts, and the positioning column extends along the first direction.

[0017] Optionally, the clamping arms are provided with weight-reducing holes for reducing weight.

[0018] As described above, the turnover mechanism has the following beneficial effects:

[0019] After the parts are grabbed by the clamping assembly, the clamping assembly can be driven by the displacement assembly to move along the first direction to a suitable position, and then the clamping assembly is rotated to turn over the parts on the clamping assembly. The clamping arms of the clamping assembly can be opened and closed along the first direction, so that the parts are within the clamping range of the clamping jaws. By clamping the two sides of the plate-shaped or sheet-shaped parts, the side edges of the clamped plate-shaped or sheet-shaped parts are avoided, so that the first contact area with the parts is increased, the friction force is increased, and the parts can be prevented from slipping out of the clamping jaws during the turning over process. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 FIG. 4 is a structural schematic view of the displacement assembly and the clamping assembly of the utility model embodiment.

[0021] Figure 2 FIG. 5 is an enlarged schematic view of position A in FIG. 4. Figure 1

[0022] Figure 3 FIG. 6 is a structural schematic view of the turnover mechanism of the utility model embodiment.

[0023] Figure 4 FIG. 7 is an enlarged schematic view of position B in FIG. 6. Figure 3

[0024] ​​Label explanation: 1, the second slide rail; 101, the second drag chain assembly; 2, the first slide rail; 201, the first slider; 202, the first track; 203, the first drag chain assembly; 204, the first motor; 3, the clamping assembly; 301, the bidirectional cylinder; 302, the clamping arm; 303, the lightening hole; 304, the finger cylinder; 305, the clamping block; 306, the antiskid rubber; 4, the placing table; 401, the positioning column; 402, the supporting column. DETAILED DESCRIPTION

[0025] The embodiments of the present application will be described in detail by specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the specification.

[0026] Please refer to Figures 1 to 4 It should be understood that the structure, proportion, size and the like shown in the drawings attached to the specification are only used to cooperate with the content disclosed in the specification for understanding and reading by those skilled in the art, and are not used to limit the limiting conditions of the implementation of the present application, so they do not have technical substantive significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" in the specification are only for the convenience of clear description, and are not used to limit the scope of the implementation of the present application. The change or adjustment of the relative relationship, without substantially changing the technical content, is also regarded as the scope of the implementation of the present application.

[0027] In order to be able to describe the present application in detail, the following will make specific description on a turnover mechanism of the present application:

[0028] Please combine Figures 1 to 4The utility model provides a turnover mechanism, including displacement assembly and clamping subassembly 3, displacement assembly includes first slide rail 2 and first slide 201 of first direction sliding setting on first slide rail 2, clamping subassembly 3 rotates and sets up on first slide 201, and clamping subassembly 3 includes two clamping arms 302 of second direction opening and closing, and at least one clamping claw of first direction opening and closing is arranged on each clamping arm 302, and the clamping claw on different clamping arms 302 is relatively arranged, wherein, second direction and first direction are perpendicular, after clamping subassembly 3 is grabbed to spare part, clamping subassembly 3 can be moved to the appropriate position along first direction under the drive of displacement assembly, then drive clamping subassembly 3 to rotate to overturn the spare part on clamping subassembly 3, the clamping arm 302 of clamping subassembly 3 can open and close along first direction to make the spare part in the clamping range of clamping claw, through the clamping of the opposite two faces of plate or sheet spare part, through increasing the first contact area with the spare part, increase friction, can avoid the spare part in the process of overturning, slip out of clamping claw, clamping subassembly 3 rotates and sets up on first slide 201 through motor, and two clamping subassembly 3 has the common rotation axis, and the rotation axis extends along third direction, and third direction and first direction and second direction are perpendicular.

[0029] In the embodiment, first slide rail 2 includes first direction extending first track 202 and ball screw assembly along first direction, and first slide 201 is clamped on first track 202 and can slide along first direction. The ball screw is used to drive first slide 201 to move on first slide rail 2, and the ball screw has the characteristics of stable movement, high precision, high transmission efficiency and good synchronism, the first ball screw includes first motor 204, first screw rod and first nut, the first screw rod is arranged along the first direction and is connected with the rotating shaft of first motor 204, the first motor 204 drives the first screw rod to rotate around its axial direction, the first nut is sleeved on the first screw rod, and the first slide 201 is connected with the first nut of the first ball screw, when the first motor 204 drives the first screw rod to rotate around its axial direction, the first nut moves along the axial direction of the first screw rod. In some embodiments, the movement of first slide 201 on first slide rail 2 can also be controlled by a pneumatic cylinder. First drag chain assembly 203 is also arranged on first slide rail 2, one end of first drag chain assembly 203 is connected with first slide 201, and the other end is fixedly connected to the bottom plate on which first slide rail 2 is installed, and first drag chain assembly 203 can protect the wire during the sliding process of first slide 201, and reduce the wear of the wire during the sliding process of first slide 201 along the first direction.

[0030] Two clamping jaws are arranged on each clamping arm 302, and the clamping jaws on different clamping arms 302 are arranged in pairs. The clamping jaws on the clamping arm 302 are symmetrical relative to the rotation axis, and the appearance of the clamping assembly 3 is neat and beautiful. In addition, two clamping jaws are arranged on each clamping arm 302, which can increase the first contact area of the clamping jaw and the part, avoid the part from tilting in the part flipping process, affect the flipping effect of the part, and even damage the part.

[0031] The clamping jaw includes a finger cylinder 304 and two clamping blocks 305 arranged in sequence in the first direction. The two clamping blocks 305 are respectively connected with parallel fingers of the finger cylinder 304, and the finger cylinder 304 is used to drive the two clamping blocks 305 to open and close to clamp the part. The finger cylinder 304 has the advantages of automatic centering, high repeat accuracy, constant gripping torque, etc. In this embodiment, the two clamping blocks 305 on each clamping jaw are L-shaped. The L-shaped clamping block 305 can change the arrangement direction of the finger cylinder 304. The length direction of the finger cylinder 304 is arranged in the third direction on the clamping arm 302. In this way, the length of the clamping assembly 3 in the second direction can be shortened, the distance between the clamping arms 302 and the space occupied by the clamping assembly 3 can be reduced, and the installation of the finger cylinder 304 is more stable. The third direction is perpendicular to the first direction and the second direction.

[0032] The opening and closing driving member is arranged between the two clamping arms 302, and is used to drive the two clamping arms 302 to open and close in the second direction. When the two clamping arms 302 move away from each other under the driving of the opening and closing driving member, the part is located outside the movement track of the clamping block 305. At this time, the clamping assembly 3 can position the position of the part in the first direction through the first sliding rail 2. When the two clamping arms 302 move towards each other under the driving of the opening and closing driving member, the part is located on the movement track of the clamping block 305. The two corresponding clamping blocks 305 move towards each other through the finger cylinder 304 to clamp the part. In this embodiment, the opening and closing driving member is a double-acting cylinder 301, and each clamping arm 302 is connected with different output ends of the double-acting cylinder 301. The double-acting cylinder 301 is convenient for linkage, saves installation space compared with two single-acting cylinders, and has a relatively low price. In some embodiments, each clamping arm 302 is provided with a corresponding cylinder to open and close in the second direction. In some other embodiments, the clamping arm 302 moves in the second direction through a ball screw. The type of the opening and closing driving member can be adjusted according to actual needs.

[0033] In detail, the displacement assembly further comprises a second sliding rail 1 extending in the second direction, and the first sliding rail 2 is slidingly arranged on the second sliding rail 1 in the second direction. By arranging the second sliding rail 1, the clamping assembly 3 can move in the second direction, and after the turnover of the part is completed, the part can be moved in the second direction through the second sliding rail 1, and then moved to a new placement position through the first sliding rail 2. By arranging the second sliding rail 1, the flexibility of moving the part after the turnover of the part is increased, and the practicability of the turnover mechanism and the applicability to different environments are improved. The second sliding rail 1 also drives the first sliding rail 2 to move through a second ball screw, and the second ball screw comprises a second motor, a second screw rod and a second nut. The first sliding rail 2 is connected with the second nut in the ball screw. The second screw rod extends in the second direction. The second nut is sleeved on the second screw rod. The second motor is connected with the second screw rod. The second motor is used to drive the second screw rod to rotate around the axial direction, and simultaneously drive the second nut to move in the axial direction of the second screw rod. In some embodiments, the second sliding rail 1 drives the first sliding rail 2 to move in the second direction through a pneumatic cylinder. The second sliding rail 1 is provided with a second drag chain assembly 101. One end of the second drag chain assembly 101 is connected with the first sliding rail 2, and the other end is connected with a base on which the second sliding rail 1 is arranged. The second drag chain assembly 101 has the same effect as the first drag chain assembly 203, and will not be described here.

[0034] In the embodiment, the first contact surface of the clamping block 305 is provided with an anti-skid rubber 306. By arranging the anti-skid rubber 306 on the clamping jaw, the outer surface of the part can be prevented from being scratched or damaged when the part is clamped by the clamping jaw. Meanwhile, the anti-skid rubber 306 can increase the friction between the clamping jaw and the part when the part is clamped by the clamping jaw, so that the part can be prevented from slipping out of the clamping jaw when the turnover mechanism turns over and moves the part. In some embodiments, the part-contacting portion of the anti-skid rubber 306 is a second contact surface, and the second contact surface is provided with an anti-skid structure. The anti-skid structure can be a first anti-skid protrusion extending in the third direction, and the second contact surface is provided with a plurality of first anti-skid protrusions arranged in the second direction in sequence and at intervals. Alternatively, the anti-skid structure is a second anti-skid protrusion protruding toward the part in the first direction, and the second contact surface is provided with a plurality of second anti-skid protrusions. The type of anti-skid structure can be adjusted according to actual needs.

[0035] Please refer to Figure 3 and Figure 4 Specifically, the turnover mechanism further comprises a placement table 4, and the placement table 4 is provided with a placement position for placing the part. The placement position is provided with at least three supporting columns 402. Each supporting column 402 extends in the first direction and is used to support the part. In this way, a clamping gap between the part and the placement table 4 can be ensured, and the clamping block 305 of the clamping jaw can extend into the clamping gap so that the part is located on the movement track of the clamping block 305.

[0036] The positioning column 401 is arranged on the placing position for positioning the spare part, and the positioning column 401 extends along the first direction. In the embodiment, six positioning columns 401 are arranged on the placing position of one spare part, and when the spare part is placed on the supporting column 402, the positioning column 401 abuts against the side edge of the spare part to position the placing position of the spare part, so that the clamping assembly 3 can clamp the spare part at the given position.

[0037] In the embodiment, the weight-reducing hole 303 is arranged on the clamping arm 302 for reducing the weight, so that the weight of the clamping arm 302 can be reduced to achieve the lightweight target. Meanwhile, after the weight of the clamping arm 302 is reduced, the gravity acting on the first sliding block 201 during the movement can be reduced.

[0038] In summary, after the clamping assembly 3 clamps the spare part, the clamping assembly 3 can be moved to the appropriate position along the first direction under the driving of the displacement assembly, and then the clamping assembly 3 is driven to rotate to overturn the spare part on the clamping assembly 3. The clamping arm 302 of the clamping assembly 3 can be opened and closed along the first direction, so that the spare part is within the clamping range of the clamping jaw, and the side edge of the clamped plate-shaped or sheet-shaped spare part is avoided, so as to increase the first contact area with the spare part and increase the friction force, so that the spare part can be avoided from slipping out of the clamping jaw during the overturning process.

[0039] The above embodiment only illustrates the principle and effect of the utility model, and is not used to limit the utility model. Any person skilled in the art can modify or change the above embodiment without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A turnover mechanism, characterized in that The utility model relates to a kind of automatic placement device for zero parts, including: Displacement component, the displacement component includes first slide rail and first slider being slid in first direction and being arranged on the first slide rail; Clamping component, the clamping component is rotationally arranged on the first slider, the clamping component includes two clamping arms being opened and closed in second direction, at least one clamping claw being arranged on each of the clamping arms is arranged in the first direction, and the clamping claw on different clamping arms is oppositely arranged; Wherein, the second direction and the first direction are perpendicular.

2. The turnover mechanism according to claim 1, characterized in that: Two clamping claws are arranged on each of the clamping arms, and the clamping claws on different clamping arms are correspondingly arranged.

3. The turnover mechanism of claim 1, wherein: The clamping claw includes finger air cylinder and two clamping blocks being sequentially arranged in the first direction, and two clamping blocks are respectively connected with parallel finger of the finger air cylinder, and the finger air cylinder is used to drive two clamping blocks to clamp and place spare parts in the first direction.

4. The turnover mechanism according to claim 3, characterized in that: The clamping block has first contact surface in contact with spare parts, and anti-skid rubber is arranged on each of the first contact surfaces.

5. The turnover mechanism of claim 1, wherein: Opening and closing driving element is arranged between two clamping arms, and the opening and closing driving element is used to drive two clamping arms to open and close in the second direction.

6. The turnover mechanism according to claim 5, wherein: The opening and closing driving element is bidirectional cylinder, and each clamping arm is connected with different output end of the bidirectional cylinder.

7. The turnover mechanism of claim 1, wherein: The displacement component further includes second slide rail extending in the second direction, and the first slide rail is slidably arranged on the second slide rail in the second direction.

8. Flip mechanism according to any of claims 1-7, characterized in that: The turnover mechanism further includes placement table, and the placement table has placement position for placing spare parts, and at least three support columns are arranged on the placement position, each support column extends in the first direction, and the support column is used to support spare parts.

9. The turnover mechanism of claim 8, wherein: Positioning column for positioning spare parts is further arranged on the placement position, and the positioning column extends in the first direction.

10. The turnover mechanism according to any one of claims 1-6, characterized in that: Weight-reducing hole is arranged on the clamping arm for weight reduction.

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