Bottle cap screwing manipulator

Abstract

The utility model discloses a bottle cap screwing manipulator which comprises a bottle cap clamping mechanism and a driving mechanism, the bottle cap clamping mechanism comprises a cap screwing clamp and an opening and closing air cylinder, and the cap screwing clamp is connected with the opening and closing air cylinder; the cap screwing clamp is of a multi-petal type clamp structure, and all petal clamps of the cap screwing clamp are driven by an opening and closing air cylinder to be opened or closed. A clamping block is arranged along the inner side face of each clamp, and the cap screwing clamp makes contact with a bottle cap through the clamping blocks. The driving mechanism is connected with the opening and closing air cylinder through a transmission shaft so as to drive the opening and closing air cylinder and the cap screwing clamp to rotate. In this way, the opening and closing air cylinder drives the cap screwing clamp to be opened or closed, the bottle cap is clamped in the closing process, the servo motor drives the cap screwing clamp to rotate after the bottle cap is clamped, and the purpose of screwing or unscrewing the bottle cap is achieved. The structure is simpler, gear transmission is not needed, the number of parts is smaller, and cost is lower; and the clamping blocks are matched with the cap screwing clamps, so that the bottle cap can be clamped in a surrounding and wrapping posture, and the bottle cap can be clamped more tightly and cannot be damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of manipulator devices, in particular to a manipulator capable of loosening and tightening bottle caps. Background Art

[0002] In the industrial production process, the process of screwing bottle caps is often involved. For example, in the chemical testing, pharmaceutical, food and other industries, it is necessary to open and close the caps before and after the materials are loaded into the bottles. This operation is currently usually completed automatically using a bottle cap screwing robot. For example, the Chinese utility model patent CN201510615237.5 discloses a rotatable cap screwing robot, which adopts the principle of lever and has two designs of manual and automatic operation functions. It can complete the specified action within the specified time, has the characteristics of durability, flexible action, stability and accuracy, and can adapt to changes in product varieties. However, this technical solution still has some defects. For example, the bottle cap is clamped with fingers, which is not stable enough. If the clamping force is small, it will not be clamped or unscrewed. Especially for threaded caps, the clamping force is too large and it is easy to damage the bottle cap. For another example, its overall structure is relatively complex, and the transmission process uses gears, which not only has poor stability but also high cost. Utility Model Content

[0003] The utility model aims to solve the shortcomings of the prior art and provides a bottle cap screwing robot which has a simpler structure, fewer parts, lower cost, more reasonable design, can clamp the bottle cap more tightly and will not damage the bottle cap.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a bottle cap screwing robot, comprising a bottle cap clamping mechanism and a driving mechanism, the bottle cap clamping mechanism is connected to the driving mechanism, and the bottle cap clamping mechanism is driven by the driving mechanism to rotate after clamping the bottle cap, and is characterized in that: the bottle cap clamping mechanism comprises a cap screwing clamp and an opening and closing cylinder, and the cap screwing clamp is connected to the opening and closing cylinder; the cap screwing clamp is a multi-petal clamp structure, and each petal of the cap screwing clamp is driven to open or close by the opening and closing cylinder; a clamping block is provided along the inner side surface of each petal clamp, and the cap screwing clamp contacts the bottle cap through the clamping block; the driving mechanism is connected to the opening and closing cylinder through its transmission shaft to realize driving the opening and closing cylinder and the cap screwing clamp to rotate.

[0005] Furthermore, the cap screwing clamp includes 2-4 clips, each clip is an arc-shaped structure and forms a circle; each clamp block is an arc-shaped structure matching each clip, and the clamp block is tightly attached to the inner side of each clip.

[0006] Furthermore, the driving mechanism adopts a servo motor, the servo motor is connected to a reducer, and the reducer is connected to the opening and closing cylinder through a transmission shaft.

[0007] Furthermore, the transmission shaft extends straight forward and is connected to the opening and closing cylinder, so that the opening and closing cylinder forms an angle of 180 degrees with the power output direction of the servo motor, that is, no steering is required.

[0008] Furthermore, a connecting tube is installed at the tail end of the opening and closing cylinder, and the transmission shaft passes through the connecting tube and is locked and fixed with the connecting tube by a locking screw.

[0009] Furthermore, a spring is provided in the connecting tube, and the spring is connected to the opening and closing cylinder.

[0010] Furthermore, the speed reducer is mounted on a mounting plate, the mounting plate is mounted on a mounting base through a support column, and the entire manipulator is mounted through the mounting base, for example, mounted on a robot.

[0011] Furthermore, the reducer is connected to the transmission shaft through a coupling, and a shaft sleeve is provided on the outside of the transmission shaft, and the shaft sleeve is fixed to the bottom surface of the mounting seat.

[0012] The utility model comprises a bottle cap clamping mechanism formed by multiple capping clamps. The clamps are driven to open or close by an opening and closing cylinder. When closed, they clamp the bottle cap. Once clamped, they are rotated by a servo motor to tighten or loosen the bottle cap. This design not only simplifies the structure by eliminating the need for gear transmission, resulting in fewer parts and lower costs, but also allows the clamping blocks to work in conjunction with the capping clamps to achieve a wraparound grip, effectively clamping the bottle cap tightly without damaging it. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a schematic structural diagram of the main part of the utility model.

[0015] In the figure, 1 is the capping clamp, 11 is the clamping block, 2 is the opening and closing cylinder, 3 is the connecting tube, 31 is the locking screw, 32 is the spring, 4 is the sleeve, 5 is the mounting seat, 51 is the support column, 52 is the mounting plate, 6 is the coupling, 7 is the reducer, 8 is the servo motor, 81 is the transmission shaft, and 9 is the bottle cap. DETAILED DESCRIPTION

[0016] In this embodiment, refer to Figure 1 and Figure 2The bottle cap screwing robot comprises a bottle cap clamping mechanism and a driving mechanism, the bottle cap clamping mechanism is connected to the driving mechanism, and the bottle cap clamping mechanism is driven by the driving mechanism to rotate after clamping the bottle cap 9; the bottle cap clamping mechanism comprises a cap screwing clamp 1 and an opening and closing cylinder 2 (such as a finger cylinder), and the cap screwing clamp 1 is connected to the opening and closing cylinder 2; the cap screwing clamp 1 is a multi-petal clamp structure, and the opening and closing cylinder 2 drives each petal clamp of the cap screwing clamp 1 to open or close so as to loosen or clamp the bottle cap 9; a clamping block 11 is provided along the inner side surface of each petal clamp, and the cap screwing clamp 1 contacts the bottle cap 9 through the clamping block 11, and the clamping block 11 can be made of elastic material, such as rubber; the driving mechanism is connected with the opening and closing cylinder 2 through its transmission shaft 81 to realize driving the opening and closing cylinder 2 and the cap screwing clamp 1 to rotate, thereby loosening or tightening the bottle cap 9.

[0017] The cap screwing clamp 1 includes 2-4 petals, such as 3 petals, each of which is an arc-shaped structure and forms a circle; each clamping block 11 is an arc-shaped structure matching each clamp, and the clamping block 11 is tightly attached to the inner side of each petal clamp so as to contact the bottle cap 9.

[0018] The driving mechanism adopts a servo motor 8 , which is connected to a reducer 7 , and the reducer 7 is connected to the opening and closing cylinder 2 via a transmission shaft 81 .

[0019] The transmission shaft 81 extends straight forward and is connected to the opening and closing cylinder 2, so that the opening and closing cylinder 2 and the power output direction of the servo motor 8 form an angle of 180 degrees, that is, no steering is required.

[0020] A connecting tube 3 is installed at the tail end of the opening and closing cylinder 2 , and the transmission shaft 81 passes through the connecting tube 3 and is locked and fixed to the connecting tube 3 by a locking screw 31 .

[0021] A spring 32 is disposed within the connecting tube 3 and is connected to the opening and closing cylinder 2. When the bottle cap 9 is tightened, the relative distance between the bottle cap 9 and the bottle decreases, and the spring 32 is tightened. When the bottle cap 9 is loosened, the relative distance between the bottle cap 9 and the bottle increases, and the spring 32 is compressed to accommodate the slight distance change caused by tightening or loosening the bottle cap 9.

[0022] The speed reducer 7 is mounted on a mounting plate 52 , and the mounting plate 52 is mounted on a mounting base 5 via a support column 51 . The entire manipulator is mounted via the mounting base 5 , for example, on a robot.

[0023] The reducer 7 is connected to the transmission shaft 81 through a coupling 6 . A shaft sleeve 4 is provided on the outside of the transmission shaft 81 and is fixed to the bottom surface of the mounting seat 5 .

[0024] During operation, the capping clamp 1 is opened or closed by the action of the opening and closing cylinder 2, thereby clamping or loosening the bottle cap 9. After clamping the bottle cap 9, the servo motor 8 is started. After being decelerated by the reducer 7, the power is transmitted to the connecting cylinder 3 through the transmission shaft 81. The connecting cylinder 3 drives the opening and closing cylinder to rotate, thereby driving the capping clamp 1 to rotate to tighten or loosen the bottle cap 9.

[0025] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not limit the scope of implementation of the present invention. All equivalent changes and modifications made within the scope of this application should still fall within the scope of the present invention.

Claims

1. A bottle cap screwing robot, comprising a bottle cap clamping mechanism and a driving mechanism, wherein the bottle cap clamping mechanism is connected to the driving mechanism, and the bottle cap clamping mechanism is driven by the driving mechanism to rotate after the bottle cap is clamped, characterized in that: The bottle cap clamping mechanism includes a capping clamp and an opening and closing cylinder, and the capping clamp is connected to the opening and closing cylinder; the capping clamp is a multi-petal clamp structure, and the opening and closing cylinder drives each petal of the capping clamp to open or close; a clamping block is provided along the inner side surface of each petal, and the capping clamp contacts the bottle cap through the clamping block; the driving mechanism is connected to the opening and closing cylinder through its transmission shaft to drive the opening and closing cylinder and the capping clamp to rotate.

2. The bottle cap screwing robot according to claim 1, characterized in that: The cap screwing clamp comprises 2-4 clips, each clip is an arc structure and forms a circle; each clamp block is an arc structure matching each clip, and the clamp block is tightly attached to the inner side of each clip.

3. The bottle cap screwing robot according to claim 1, characterized in that: The driving mechanism adopts a servo motor, the servo motor is connected to a reducer, and the reducer is connected to the opening and closing cylinder through a transmission shaft.

4. The bottle cap screwing robot according to claim 3, characterized in that: The transmission shaft extends straight forward and is connected to the opening and closing cylinder, so that the opening and closing cylinder forms an angle of 180 degrees with the power output direction of the servo motor.

5. The bottle cap screwing robot according to claim 1, 3 or 4, characterized in that: A connecting tube is installed at the tail end of the opening and closing cylinder, and the transmission shaft passes through the connecting tube and is locked and fixed with the connecting tube by a locking screw.

6. The bottle cap screwing robot according to claim 5, characterized in that: A spring is arranged in the connecting tube, and the spring is connected to the opening and closing cylinder.

7. The bottle cap screwing robot according to claim 3, characterized in that: The speed reducer is mounted on a mounting plate, the mounting plate is mounted on a mounting seat through a supporting column, and the entire manipulator is mounted through the mounting seat.

8. The bottle cap screwing robot according to claim 7, characterized in that: The reducer is connected to the transmission shaft through a coupling. A shaft sleeve is provided on the outside of the transmission shaft and is fixed to the bottom surface of the mounting seat.

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