Automatic gripping device for unqualified products on production line

Abstract

The utility model relates to the technical field of rejecting of unqualified products, in particular to an automatic gripping device for unqualified products on a production line, which comprises a base, a lifting mechanism, a vertical column, a rotating sleeve, a transverse column and a gripping mechanism, the base is mounted on one side of the production line, the lifting mechanism is mounted on the base, and an action end of the lifting mechanism is connected with a clamping seat. A vertical column is fixed to one side of the lifting mechanism, a rotating sleeve is arranged on the outer side of the vertical column in a clearance fit mode, a convex ring is fixedly connected to one side of the rotating sleeve, a transverse groove is formed in the side, deviating from the convex ring, of the clamping base, and the side edge of one side of the convex ring is embedded into the transverse groove. A transverse column is fixed to one side of the rotating sleeve, an arc-shaped groove is formed in the outer side wall of the rotating sleeve, one end of the transverse column extends into the arc-shaped groove, and the transverse column is matched with the arc-shaped groove to guide the rotating direction of the rotating sleeve; the outer side of the rotating sleeve is connected with a grabbing mechanism which is used for grabbing unqualified products; by means of the mechanical automation technology, the problems that omission is prone to occurring, the manpower load is heavy, and the labor cost is high in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of rejecting defective products, in particular to an automatic grabbing device for defective products of a production line. Background Art

[0002] Defective products are products that do not meet one or more quality characteristics specified in the implementation standards. In the field of automated production, since the finished products will inevitably fail to meet the quality standards, the production management system of enterprises is equipped with relevant methods and procedures to inspect and identify the quality of finished products and separate the defective products before they can be shipped. At present, there are many forms of finished product inspection in public use. For example, visual inspection equipment can be installed on the product line to detect whether the finished products are qualified. After automatically completing the inspection of each finished product, a conclusion will be formed on whether each product is qualified. Subsequent processes will remove the defective products based on the conclusion to prevent the defective products from being mixed with qualified products. In the existing technology, most of them still use manual methods to remove defective products. This method requires more manpower input, heavy manpower load, and high labor costs. In addition, due to the high speed of automated production lines and the continuous operation of the production process, the manual removal method is difficult to match the rhythm of high-speed production lines, resulting in the easy omission of defective product removal links, affecting the quality of shipment; some product production lines use special manipulators to pick out defective products from the conveyor line, which is a high-cost solution. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides an automated grabbing device for defective products of the production line which can match the rhythm of the automated production line. It adopts mechanical automation technology and designs a small linkage mechanism to achieve reciprocating grabbing beside the production line. The structure is ingenious and the production cost is low.

[0004] In order to achieve the above purpose, the utility model is implemented by adopting the following technical solutions:

[0005] The utility model discloses an automatic grabbing device for defective products of a production line, comprising a base, a lifting mechanism, a vertical column, a rotating sleeve, a transverse column and a grabbing mechanism. The base is installed at one side of the production line, and a lifting mechanism is installed on the base. The action end of the lifting mechanism is connected to a clamping seat, a vertical column is fixed to one side of the lifting mechanism, and a rotating sleeve is provided in a clearance fit on the outer side of the vertical column. A convex ring is fixedly connected to one side of the rotating sleeve, and a transverse groove is provided on the side of the clamping seat biased towards the convex ring, and one side edge of the convex ring is embedded in the transverse groove; a transverse column is fixed to one side of the rotating sleeve, and an arc groove is provided on the outer side wall of the rotating sleeve, and one end of the transverse column extends into the arc groove, and the transverse column cooperates with the arc groove to guide the rotation direction of the rotating sleeve; the outer side of the rotating sleeve is connected to the grabbing mechanism for grabbing defective products.

[0006] In a possible technical solution, the lifting mechanism is a linear motor, the base of the linear motor is vertically installed on the base, two guide rails are arranged in parallel on the base, the mover slides with the guide rails, the mover is connected to the holder, and the linear motor is equipped with a grating encoder connected to the control system signal.

[0007] In a possible technical solution, the top end of the vertical column is connected to a limiting ring.

[0008] In a possible technical solution, the transverse column is installed through a fixing plate, and the height of the transverse column corresponds to the middle and lower part of the rotating sleeve.

[0009] In a possible technical solution, the outer side of the rotating sleeve is connected to the grasping mechanism via a supporting arm.

[0010] In a possible technical solution, the grasping mechanism is a finger cylinder, and the finger cylinder is connected to a fixture.

[0011] In a possible technical solution, a defective product placement area is also provided on the base within the moving range of the gripping mechanism.

[0012] A possible technical solution also includes a visual detector arranged on the product conveyor line.

[0013] In a possible technical solution, a sliding assistance structure is provided between the convex ring and the transverse groove and between the transverse column and the arc groove.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model adopts a lifting mechanism as the driving force, and realizes the guiding effect on the rotation direction of the rotating sleeve by means of the simple structural cooperation of the transverse column and the arc groove, and realizes the grabbing action of the grabbing mechanism on the unqualified products by converting the reciprocating motion of the lifting mechanism into the reciprocating rotation of the rotating sleeve; through mechanical automation technology, a small linkage mechanism is designed to realize reciprocating grabbing beside the production line, and the grabbing action is fast and accurate. When in use, it can automatically complete the removal of unqualified products in accordance with the production rhythm of the production line. The structural design is ingenious and the production cost is low, which solves the problems of easy omissions, heavy manpower burden, and high labor cost in the manual removal method. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the installation structure of the automatic grabbing device for defective products on the production line of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the automatic grabbing device for defective products of the production line of the utility model;

[0017] Figure 3 This is a structural schematic diagram of the automatic grabbing device for defective products on a production line of the utility model from another angle;

[0018] Figure 4 It is a schematic diagram of the structure of the transverse column;

[0019] Figure 5 It is a schematic diagram of the matching structure of the transverse column and the rotating sleeve;

[0020] Figure numerals: 1-base; 2-vertical column; 21-limiting ring; 3-rotating sleeve; 31-arc groove; 32-convex ring; 4-transverse column; 5-cage; 51-transverse groove; 6-fixed plate; 7-linear motor; 71-base; 72-guide rail; 73-mover; 8-support arm; 9-finger cylinder; 10-defective product placement area; 11-visual detector. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0022] like Figures 1 to 3 As shown, the automatic grabbing device for defective products of the production line of the utility model embodiment comprises a base 1, a lifting mechanism, a vertical column 2, a rotating sleeve 3, a transverse column 4 and a grabbing mechanism, wherein the base 1 is installed on one side of the production line, and a lifting mechanism is installed on the base 1, and the action end of the lifting mechanism is connected to the clamping seat 5, a vertical column 2 is fixed to one side of the lifting mechanism, and a rotating sleeve 3 is provided in the outer clearance of the vertical column 2, a convex ring 32 is fixedly connected to one side of the rotating sleeve 3, a transverse groove 51 is provided on the side of the clamping seat 5 deviating from the convex ring 32, and a side edge of one side of the convex ring 32 is embedded in the transverse groove 51; a transverse column 4 is fixed to one side of the rotating sleeve 3, an arc groove 31 is provided on the outer wall of the rotating sleeve 3, one end of the transverse column 4 extends into the arc groove 31, and the transverse column 4 and the arc groove 31 are connected. Cooperate to guide the rotation direction of the rotating sleeve 3; the lifting mechanism can drive the holder 5 to perform lifting and lowering movements, and the holder 5 drives the convex ring 32 and the rotating sleeve 3 to perform lifting and lowering synchronously through the transverse groove 51. Due to the cooperation between the transverse column 4 and the arc groove 31, when the rotating sleeve 3 is lifted and lowered, under the resistance force of the transverse column 4 on the arc groove 31, the rotating sleeve 3 rotates, and the outer side of the rotating sleeve 3 is connected to the grasping mechanism, thereby driving the grasping mechanism to rotate to the production line position to grasp the defective products on the production line; when the grasping action is completed, the lifting mechanism moves in the reverse direction and drives the holder 5, the convex ring 32, and the rotating sleeve 3 to perform reverse lifting and lowering synchronously. Under the resistance force of the transverse column 4 on the arc groove 31, the rotating sleeve 3 rotates in the reverse direction and drives the grasping mechanism to move the defective products out of the production line.

[0023] The utility model adopts a lifting mechanism as a driving force, and realizes the guiding effect on the rotation direction of the rotating sleeve by means of the simple structure of the transverse column 4 and the arc groove 31, and realizes the grabbing action of the grasping mechanism on the unqualified products by converting the reciprocating motion of the lifting mechanism into the reciprocating rotation of the rotating sleeve; through the mechanical automation technology, a small linkage mechanism is designed to realize reciprocating grabbing beside the production line, and the grabbing action is fast and accurate. When in use, it can automatically complete the removal of unqualified products in accordance with the production rhythm of the production line. The structure is ingeniously conceived and the production cost is low, which solves the problems of easy omission, heavy manpower load and high labor cost in the manual removal method.

[0024] In this embodiment, specifically, the base 1 is a platform structure installed on one side of the production line.

[0025] The vertical column 2 guides the lifting and rotation of the rotating sleeve 3 ; the top of the vertical column 2 is connected to a limit ring 21 to prevent the rotating sleeve 3 from separating from the vertical column 2 .

[0026] The lifting mechanism can be a power structure, device or mechanism that can generate lifting motion; for example, it can include but is not limited to a cylinder, a hydraulic cylinder or an electric push rod; in this embodiment, the lifting mechanism is a linear motor 7, and the base 71 of the linear motor 7 is vertically installed on the base 1. The base 71 is provided with two guide rails 72 in parallel, and the mover 73 slides with the guide rails 72. The mover 73 is connected to the base 5, and the linear motor 7 is configured with a grating encoder to connect the control system signal; the mover 73 can drive the base 5 to perform lifting motion under the program command of the control system, and the moving position of the mover 73 can be precisely controlled by the grating encoder; the base 71 is located at both ends of the moving direction of the mover 73, and upper and lower limits are respectively provided to ensure that the mover 73 moves within the safe path range of the guide rail 72.

[0027] The holder 5 can be of any shape. The function of the holder 5 is to drive the convex ring 32 to move up and down, and at the same time, it does not constitute a blocking effect on the rotation of the convex ring 32. That is, the transverse groove 51 only limits the lifting direction of the convex ring 32, so the specific shape of the transverse groove 51 is not specifically limited. Figure 2 The rotating sleeve 3 shown in the figure is a square groove. In actual implementation, the transverse groove 51 can also be an arc groove, an annular groove or other matching structures of suitable shapes; preferably, in order to reduce the rotational resistance between the convex ring 32 and the transverse groove 51, a sliding aid structure is arranged between the convex ring 32 and the transverse groove 51, for example, the edges of the convex ring 32 and the transverse groove 51 are chamfered or a roller is arranged between the convex ring 32 and the transverse groove 51.

[0028] The length of the rotating sleeve 3 is less than that of the vertical column 2, and the length of the rotating sleeve 3 is required not to hinder the lifting and lowering movement of the rotating sleeve 3; a convex ring 32 is fixedly connected to the top of the rotating sleeve 3; the direction of the arc groove 31 needs to be designed according to the rotation direction of the rotating sleeve 3 driving the grabbing mechanism to rotate from the initial position to the production line position and the lifting direction of the lifting mechanism. For example, in this embodiment, the rotating sleeve 3 drives the grabbing mechanism to rotate from the initial position to the production line position by 90° counterclockwise, and the arc groove 31 is Figure 2 The S-shape shown is bent downward to the right, as shown in Figure 5 As shown; when the rotating sleeve 3 drives the grasping mechanism to start grasping in the initial position, the lifting mechanism is turned on so that its action end drives the holder 5 to move downward, and the holder 5 drives the convex ring 32 and the rotating sleeve 3 to descend synchronously through the transverse groove 51. Due to the guiding effect of the transverse column 4 and the arc groove 31, the rotating sleeve 3 rotates counterclockwise. When the rotating sleeve 3 rotates 90° into place, the lifting mechanism stops the downward movement, and the grasping mechanism completes the grasping. Then the lifting mechanism starts the ascending movement, and the holder 5 drives the convex ring 32 and the rotating sleeve 3 to rise synchronously through the transverse groove 51. The rotating sleeve 3 rotates in the opposite clockwise direction and returns to the initial position, and the grasping mechanism places the unqualified products.

[0029] The transverse column 4 is installed through the fixing plate 6, one end of the transverse column 4 is fixed to the fixing plate 6, and the other end extends into the arc groove 31. The height of the transverse column 4 corresponds to the middle and lower part of the rotating sleeve 3; preferably, a sliding aid structure is provided between the transverse column 4 and the arc groove 31, for example, Figure 4 As shown, the end of the transverse column 4 in the arc groove 31 is designed as a spherical surface.

[0030] The outer side of the rotating sleeve 3 is connected to the grabbing mechanism via a support arm 8, and the specific shape of the support arm 8 is not specifically limited.

[0031] The grasping mechanism can adopt any mechanism, equipment or instrument in the prior art that can realize the grasping action. In this embodiment, the grasping mechanism is a finger cylinder 9, and the finger cylinder 9 is connected to the clamp. The finger cylinder uses compressed air as power to clamp or grasp the workpiece. It has the advantages of high precision and stable grasping action. The finger cylinder can select a suitable model product available on the market according to the shape and weight characteristics of the workpiece.

[0032] A defective product placement area 10 is also provided on the base 1 within the moving range of the gripping mechanism.

[0033] Preferably, a visual detector 11 is provided on the product conveying line to check whether the quality of the finished product is qualified and transmit the identification result signal to the control system.

[0034] The automatic grasping device for defective products of the production line of the embodiment of the utility model automatically controls the grasping action process of defective products through the control system when it is working. When the visual detector 11 transmits the signal that the identification result is a defective product to the control system, the control system sends a descending action command to the linear motor 7, and the mover 73 drives the holder 5 to move downward. The holder 5 drives the convex ring 32 and the rotating sleeve 3 to descend synchronously through the transverse groove 51. Due to the guiding effect of the transverse column 4 and the arc groove 31, the rotating sleeve 3 rotates counterclockwise. When the rotating sleeve 3 rotates 90 After ° is in place, the linear motor 7 stops moving downward, and the finger cylinder 9 completes the grasping. Then the linear motor 7 starts the upward movement, and the mover 73 drives the holder 5 to move upward. The holder 5 drives the convex ring 32 and the rotating sleeve 3 to rise synchronously through the transverse groove 51. The rotating sleeve 3 rotates clockwise in the opposite direction and returns to the initial position. The finger cylinder 9 places the unqualified products in the unqualified product placement area 10. This is a complete grasping action process. When the visual detector 11 transmits the signal of the identification result as a unqualified product to the control system again, the above process is repeated.

[0035] The installation methods, connection methods or setting methods other than those described above are all common mechanical methods, and they can be implemented as long as they can achieve their beneficial effects; the linear motor, finger cylinder and visual detector of the utility model are purchased on the market, and technicians in the industry only need to install and operate them according to the accompanying instruction manual.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. The automatic grabbing device for defective products on the production line is characterized by: The invention comprises a base (1), a lifting mechanism, a vertical column (2), a rotating sleeve (3), a transverse column (4) and a grasping mechanism. The base (1) is installed on one side of the production line. The lifting mechanism is installed on the base (1). The action end of the lifting mechanism is connected to a clamping seat (5). The vertical column (2) is fixed to one side of the lifting mechanism. The rotating sleeve (3) is provided on the outer side of the vertical column (2) in a clearance fit. A convex ring (32) is fixedly connected to one side of the rotating sleeve (3). The clamping seat (5) is biased toward the convex ring (32). ) is provided with a transverse groove (51) on one side, and a side edge of the convex ring (32) is embedded in the transverse groove (51); a transverse column (4) is fixed on one side of the rotating sleeve (3), an arc groove (31) is provided on the outer side wall of the rotating sleeve (3), one end of the transverse column (4) extends into the arc groove (31), and the transverse column (4) cooperates with the arc groove (31) to guide the rotation direction of the rotating sleeve (3); the outer side of the rotating sleeve (3) is connected to a grasping mechanism for grasping defective products.

2. The automatic grabbing device for defective products of a production line according to claim 1, characterized in that: The lifting mechanism is a linear motor (7). The base (71) of the linear motor (7) is vertically mounted on the base (1). The base (71) is provided with two guide rails (72) in parallel. The mover (73) is slidably matched with the guide rails (72). The mover (73) is connected to the holder (5). The linear motor (7) is equipped with a grating encoder and is connected to the control system signal.

3. The automatic grabbing device for defective products of a production line according to claim 2, characterized in that: The top end of the vertical column (2) is connected to a limiting ring (21).

4. The automatic grabbing device for defective products of a production line according to claim 3, characterized in that: The transverse column (4) is installed via a fixing plate (6), and the height of the transverse column (4) corresponds to the middle and lower part of the rotating sleeve (3).

5. The automatic grabbing device for defective products of a production line according to claim 4, characterized in that: The outer side of the rotating sleeve (3) is connected to a grabbing mechanism via a supporting arm (8).

6. The automatic grabbing device for defective products of a production line according to claim 5, characterized in that: The grasping mechanism is a finger cylinder (9), and the finger cylinder (9) is connected to a clamp.

7. The automatic grabbing device for defective products of a production line according to claim 6, characterized in that: A defective product placement area (10) is also provided on the base (1) within the moving range of the gripping mechanism.

8. The automatic grabbing device for defective products of a production line according to claim 7, characterized in that: It also includes a visual detector (11) arranged on the product conveying line.

9. The automatic grabbing device for defective products of a production line according to claim 8, characterized in that: A sliding assistance structure is provided between the convex ring (32) and the transverse groove (51) and between the transverse column (4) and the arc groove (31).

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