Box grabbing device

Abstract

The utility model relates to automatic grabbing equipment, in particular to a box grabbing device which comprises a fixed support, transmission swing rods, a sleeve, a base, a center pressing rod, a connecting rod and a grabbing hand assembly, the fixed support is connected with a set of transmission swing rods in a limiting mode, the lower portion of the fixed support is fixedly connected with the sleeve in the vertical axial direction, and the lower end of the sleeve is fixedly connected with the base. A center pressing rod is coaxially arranged in the sleeve in a guiding mode, the upper end of the center pressing rod is connected with a transmission swing rod, a gripper assembly is hinged to the lower portion of the side edge of the base and hinged to one end of a connecting rod, and the other end of the connecting rod is hinged to the center pressing rod.

Description

Technical Field

[0001] This application belongs to the field of automated mechanical equipment and relates to an automatic gripping mechanism, specifically a box gripper. Background Technology

[0002] In the packaging processes of bottled materials such as liquor and liquid foods, the development of automated equipment has led to increasingly higher requirements for the automation level of production lines. The box-grabbing process has now been completely replaced by mechanical clamps instead of manual operation. However, traditional box grippers are usually made of rigid materials, and due to the large gripping force, they are prone to deformation of the packaging boxes during frequent use, which may scratch the box surface and damage the box. In particular, some box grippers have poor compatibility and suffer from problems such as loosening and slippage. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, this application proposes a box gripper that ensures stable and reliable gripping without damaging the box.

[0004] The technical problem solved by this application is achieved through the following technical solution:

[0005] A box gripper includes a fixed bracket, a transmission swing rod, a sleeve, a base, a central pressure rod, a connecting rod, and a gripper assembly. The fixed bracket is connected to a set of transmission swing rods at its upper limit. A vertically axial sleeve is fixedly connected to the lower part of the fixed bracket, and a base is fixedly connected to the lower end of the sleeve. A central pressure rod is coaxially guided inside the sleeve. The upper end of the central pressure rod is connected to the transmission swing rod. A gripper assembly is hinged to the lower side of the base. The gripper assembly is hinged to one end of the connecting rod, and the other end of the connecting rod is hinged to the central pressure rod.

[0006] Furthermore, two gripper assemblies are hinged to each other on both sides of the base, and the two gripper assemblies move synchronously.

[0007] Furthermore, the gripper assembly includes a gripper, a third connecting shaft, and a second connecting shaft. The upper end of the gripper is hinged to the lower end of the connecting rod via the second connecting shaft, and the middle part of the gripper is hinged to the side of the base via the third connecting shaft.

[0008] Furthermore, the gripper is provided with an arc-shaped protruding end face, and a rubber pad is fixedly installed on the end face of the gripper.

[0009] Moreover, the width of the gripper is the same as the width of the box body, and the gripper is provided with multiple through holes.

[0010] Furthermore, the sleeve is provided with a vertically penetrating channel. The upper channel of the sleeve has a smaller diameter, which matches the diameter of the central pressure rod. The lower channel of the sleeve has a larger diameter than the upper channel. An annular step is provided between the upper and lower channels. A limiting block is fixedly installed on the outer periphery of the middle part of the central pressure rod. A spring is provided on the outer periphery of the central pressure rod at the lower part of the sleeve. The lower end of the spring abuts against the limiting block, and the upper end of the spring abuts against the annular step of the sleeve.

[0011] Furthermore, the lower part of the central pressure rod is connected to a first connecting shaft, which is connected to the upper end of the connecting rod, and the connecting rod passes through a corresponding through hole on the side wall of the sleeve.

[0012] Furthermore, a limiting piece is fixedly connected to the side of the base, and the limiting piece is a sheet-like structure that tilts outward.

[0013] The advantages and positive effects of this utility model are:

[0014] This utility model adopts a spring buffer and guide rod positioning design, combined with the elastic deformation of the spring to achieve flexible clamping. It can quickly grasp box-shaped objects, while avoiding deformation or damage caused by excessive clamping. The clamp adopts a symmetrical gripper structure, which has precise and highly synchronized movements, stable and reliable gripping, and centered position without damaging the box body. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the box gripper in the embodiment.

[0016] Figure 2 This is a front plan view of the box gripper in the embodiment.

[0017] Figure 3 yes Figure 2 AA-direction cross-section diagram.

[0018] Icon labels:

[0019] 1. Fixed bracket; 2. Transmission swing arm; 21. Second swing arm; 22. First swing arm; 3. Central pressure rod; 31. Spring; 32. Limiting block; 4. Sleeve; 5. Connecting rod; 51. First connecting shaft; 6. Grip assembly; 61. Gripper; 62. Third connecting shaft; 63. Second connecting shaft; 7. Box body; 8. Limiting plate; 9. Base. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer and easier to understand, the application will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only for explaining this application and are not intended to limit this application.

[0021] A box gripper, see attached Figure 1The device includes a fixed bracket 1, a transmission swing rod 2, a sleeve 4, a base 9, a central pressure rod 3, a connecting rod 5, and a gripper assembly 6. The fixed bracket 1 is connected to an upper limit of the transmission swing rod 2. A vertically oriented sleeve 4 is fixedly connected to the lower part of the fixed bracket 1, and a base 9 is fixedly connected to the lower end of the sleeve 4. A central pressure rod 3 is coaxially arranged inside the sleeve 4, and the central pressure rod 3 can move up and down within the sleeve 4. The upper end of the central pressure rod 3 is connected to the transmission swing rod 2, which provides power to control the movement of the central pressure rod 3. A gripper assembly 6 is hinged to the lower side of the base 9. The gripper assembly 6 is hinged to one end of the connecting rod 5, and the other end of the connecting rod 5 is hinged to the central pressure rod 3. As the central pressure rod 3 moves up and down, the gripper assembly 6 swings inward and outward towards the base 9, thereby clamping or releasing the box 7.

[0022] A limiting piece 8 is also fixedly connected to the side of the base 9. The limiting piece 8 is a sheet-like structure that tilts outward and slides the box 7 towards the center of the base 9, protecting the box 7 and guiding the box 7 to the center position. In this embodiment, the base 9 is a rectangular flat plate structure, and the limiting pieces 8 are set on opposite sides of the base 9. Depending on the structural dimensions, multiple limiting pieces 8 can also be set.

[0023] In this embodiment, the base 9 is a rectangular flat plate structure. Two gripper assemblies 6 are hinged on both sides of the base 9. The two gripper assemblies move synchronously and clamp each other to grip the box 7. Depending on the design dimensions, there can be one or more gripper assemblies 6.

[0024] See appendix Figure 2 As shown, the gripper assembly 6 includes a gripper 61, a third connecting shaft 62, and a second connecting shaft 63. The upper end of the gripper 61 is hinged to the lower end of the connecting rod 5 through the second connecting shaft 63, and the middle part of the gripper 61 is hinged to the side of the base 9 through the third connecting shaft 62.

[0025] In this embodiment, the width of the gripper 61 is the same as the width of the box body 7, which can more stably grip the box body 7 and distribute the force evenly. The gripper 61 is provided with an arc-shaped protruding end face to facilitate clamping the box body 7. A rubber pad is fixed to the end face of the gripper 61 to prevent damage to the box body 7. The gripper 61 is provided with multiple through holes to reduce weight.

[0026] See appendix Figure 3 As shown, the internal conveying structure of this device has a vertically penetrating channel inside the sleeve 4. The upper channel of the sleeve 4 has a smaller diameter, which matches the diameter of the central pressure rod 3. The lower channel of the sleeve 4 has a larger diameter than the upper channel. An annular step is provided between the upper and lower channels.

[0027] A limiting block 32 is fixedly installed on the outer periphery of the center pressure rod 3. A spring 31 is located on the outer periphery of the sleeve 4 of the center pressure rod 3 at the lower part of the sleeve 4. The lower end of the spring 31 abuts against the limiting block 32, and the upper end of the spring 31 abuts against the annular step of the sleeve 4.

[0028] A first connecting shaft 51 is connected to the lower part of the central pressure rod 3 below the limiting block 32. The first connecting shaft 51 is connected to the upper end of the connecting rod 5. The connecting rod 5 passes through the corresponding through hole on the side wall of the sleeve 4. When the central pressure rod 3 moves up and down, it can drive the connecting rod 5 to move.

[0029] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A box gripper, characterized in that, It includes a fixed bracket, a transmission swing rod, a sleeve, a base, a central pressure rod, a connecting rod, and a gripper assembly. The fixed bracket is connected to a set of transmission swing rods at its upper limit. A vertically axial sleeve is fixedly connected to the lower part of the fixed bracket, and a base is fixedly connected to the lower end of the sleeve. A central pressure rod is coaxially guided inside the sleeve. The upper end of the central pressure rod is connected to the transmission swing rod. A gripper assembly is hinged to the lower side of the base. The gripper assembly is hinged to one end of the connecting rod, and the other end of the connecting rod is hinged to the central pressure rod.

2. The box gripper according to claim 1, characterized in that, Two gripper assemblies are hinged to each other on both sides of the base, and the two gripper assemblies move synchronously.

3. The box gripper according to claim 2, characterized in that, The gripper assembly includes a gripper, a third connecting shaft, and a second connecting shaft. The upper end of the gripper is hinged to the lower end of the connecting rod via the second connecting shaft, and the middle part of the gripper is hinged to the side of the base via the third connecting shaft.

4. The box gripper according to claim 3, characterized in that, The gripper is provided with an arc-shaped protruding end face, and a rubber pad is fixedly installed on the end face of the gripper.

5. The box gripper according to claim 3, characterized in that, The width of the gripper is the same as the width of the box body, and the gripper is provided with multiple through holes.

6. The box gripper according to claim 1, characterized in that, The sleeve has a through channel running vertically through it. The upper channel of the sleeve has a smaller diameter, which matches the diameter of the central pressure rod. The lower channel of the sleeve has a larger diameter than the upper channel. An annular step is provided between the upper and lower channels. A limit block is fixedly installed on the outer periphery of the middle part of the central pressure rod. A spring is provided on the outer periphery of the lower part of the sleeve around the central pressure rod. The lower end of the spring abuts against the limit block, and the upper end of the spring abuts against the annular step of the sleeve.

7. The box gripper according to claim 1, characterized in that, The lower part of the central pressure rod is connected to a first connecting shaft, which is connected to the upper end of the connecting rod. The connecting rod passes through a corresponding through hole on the side wall of the sleeve.

8. The box gripper according to claim 1, characterized in that, The base is also fixedly connected to a limiting plate, which is a sheet-like structure that tilts outward.

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