Screw clamping device for operation in narrow space

By designing a screw clamping device for confined space operations, and utilizing the cooperation between the conveyor clamp and the support with the gripper, the problem of pneumatic fingers being unable to open properly in confined spaces was solved, enabling normal screw installation and improving installation efficiency in confined spaces.

CN224223223UActive Publication Date: 2026-05-12FOSHAN WOLIAN ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN WOLIAN ELECTRIC CO LTD
Filing Date
2025-04-30
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

现有螺钉夹取装置在狭小空间内气动手指长度较长,导致无法正常打开,影响螺钉安装工作的进行。

Method used

Design a screw clamping device for operation in confined spaces. By coordinating a conveyor, a support, and a jaw, the jaw length is shortened and the jaw can be opened normally in confined spaces. The support and jaw are used to position the screw, and the screw is installed with the help of pneumatic fingers.

Benefits of technology

This allows for proper screw installation even in confined spaces, with the grippers opening smoothly, thus improving the applicability and efficiency of screw installation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224223223U_ABST
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Abstract

The screw clamping device for operation in the narrow space comprises a conveying clamping seat, a support and two clamping jaws, a containing through groove is formed in the upper portion of the conveying clamping seat, and a screwdriver seat communicated with the containing through groove is arranged on the upper portion of the rear side of the conveying clamping seat. The lower portion of the rear side of the conveying clamping base is provided with a conveying groove communicating with the containing through groove, the two clamping jaws are correspondingly hinged to the left side and the right side of the conveying clamping base and extend to the front side of the conveying clamping base when the two clamping jaws are combined, and the support is hinged to the bottom face of the conveying clamping base. According to the screw clamping device for operation in the narrow and small space, the conveying clamping seat is provided with the support capable of supporting the screws, the support can be matched with the two clamping jaws to position the screws input into the containing through groove, and therefore the length of the clamping jaws is shortened, and the space needed when the two clamping jaws are opened is shortened; and the two clamping jaws can be normally opened when the screw is mounted in a narrow space.
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Description

Technical Field

[0001] This utility model relates to the field of screw clamping equipment technology, and in particular to a screw clamping device for operation in confined spaces. Background Technology

[0002] A screw gripper is a mechanical device used in automated assembly or maintenance processes to grasp, position, and place screws. Examples include magnetic screw grippers, mechanical jaw screw grippers, and vacuum suction screw grippers. Mechanical jaw screw grippers utilize pneumatically driven fingers that are combined, and the screw is pressed into these fingers by gas to grip it. A screwdriver tip then extends into the gripper, and the pneumatic fingers open to allow the screwdriver tip to install the screw. However, existing screw grippers often have long pneumatic fingers, which can be difficult to open properly in confined spaces, hindering screw installation. Therefore, a new type of screw gripper is needed to address these issues. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a screw clamping device for confined space operations. The conveying clamp is provided with a support that can support the screw. The support can cooperate with two jaws to position the screw that is input into the receiving slot, thereby shortening the length of the jaws and the width space required when the two jaws are open, and ensuring that the two jaws can be opened normally when screw installation is performed in a confined space.

[0004] A screw clamping device for working in confined spaces includes a conveying clamp, a support, and two clamps. The upper part of the conveying clamp is provided with a receiving groove, and the upper rear side of the conveying clamp is provided with a screwdriver holder communicating with the receiving groove. The lower rear side of the conveying clamp is provided with a conveying groove communicating with the receiving groove. The two clamps are hinged to the left and right sides of the conveying clamp respectively and extend to the front side of the conveying clamp when the two clamps are closed. The support is hinged to the bottom surface of the conveying clamp and extends from the bottom surface of the conveying clamp to the front side of the two clamps and can support screws.

[0005] Preferably, the screwdriver holder has a screwdriver tip through groove at its center, and the screwdriver tip through groove communicates with the receiving through groove.

[0006] Preferably, the conveying groove is inclined upward toward the receiving through groove, and the conveying groove is provided with an upwardly curved connecting groove at the groove opening located on the side wall of the conveying clamp.

[0007] Preferably, the left and right sides of the conveying clamp are provided with mounting grooves, and the clamps are hinged to the mounting grooves through hinge seats.

[0008] Preferably, the length of the gripper is greater than the length of the mounting groove, the inner side of the gripper located in the mounting groove is inclined outward toward the rear side of the conveying clamp, and the inner side of the gripper extending outside the mounting groove is provided with a positioning groove.

[0009] Preferably, the bottom surface of the conveying clamp is provided with an installation groove, the support is hinged to the installation groove through a hinge seat, and the inner side of the support located in the installation groove is inclined outward toward the rear side of the conveying clamp. A support platform is horizontally provided at one end of the support located in front of the two grippers, and a support groove is provided on the top surface of the support platform.

[0010] The beneficial effects of this utility model are: the screw clamping device for operation in confined spaces uses a conveying clamp, a support and a jaw to cooperate with each other, so that the conveying clamp is equipped with a support that can support the screw, and the support can cooperate with the two jaws to position the screw input into the receiving slot, thereby shortening the length of the jaws and the width space required when the two jaws are opened, and ensuring that the two jaws can be opened normally when screw installation is carried out in a confined space. Attached Figure Description

[0011] Appendix Figure 1 This is a schematic diagram of the conventional structure of this utility model;

[0012] Appendix Figure 2 This is a schematic diagram of the structure of this utility model;

[0013] Appendix Figure 3 This is another structural schematic diagram of the present invention;

[0014] Appendix Figure 4 This is a rear view of the present invention.

[0015] In the diagram: 1. Conveyor clamp, 2. Support, 3. Clamp, 4. Receiving slot, 5. Screwdriver holder, 6. Conveyor groove, 7. Screwdriver tip slot, 8. Mounting groove, 9. Positioning groove, 10. Support platform, 11. Support groove. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so as to provide a clearer understanding of the technical concept claimed by the present invention.

[0017] like Figures 1 to 4As shown, a screw clamping device for working in confined spaces includes a conveying clamp 1, a support 2, and two clamping claws 3. The upper part of the conveying clamp 1 is provided with a receiving through groove 4. The upper rear side of the conveying clamp 1 is provided with a screwdriver holder 5 communicating with the receiving through groove 4, and the lower rear side of the conveying clamp 1 is provided with a conveying groove 6 communicating with the receiving through groove 4. The two clamping claws 3 are hinged to the left and right sides of the conveying clamp 1 respectively, and extend to the front side of the conveying clamp 1 when the two clamping claws 3 are closed. The support 2 is hinged to the bottom surface of the conveying clamp 1, and extends from the bottom surface of the conveying clamp 1 to the front side of the two clamping claws 3 and can support screws.

[0018] The working principle of the screw clamping device for confined space operations described in this utility model is achieved through the cooperation of the conveying clamp 1, the support 2, and the gripper 3. Figure 1 The diagram shows the structure of a traditional screw clamping device. The pneumatic gripper 3 is relatively long and requires a large opening width. Figures 2 to 4 As shown, the gripper 3 can be connected to an external air pipe, and the two grippers 3 can be controlled by air pressure to close or open on the conveyor clamp 1, similar to pneumatic fingers, so they will not be described in detail. The initial state of the two grippers 3 being closed is described. The screw is fed from the conveyor groove 6 into the receiving groove 4, and the screw moves along the receiving groove 4 to the support 2 and the two grippers 3, and then the screw is positioned between the two grippers 3. Then, a screwdriver head (not shown in the figure) can be installed in the screwdriver holder 5. The screwdriver head extends into the receiving groove 4 and abuts against the screw. Then the two grippers 3 open, and the screwdriver head rotates the screw to perform the screw installation work. The support 2 can swing on the conveyor clamp 1, and the installation angle can be adjusted as needed to improve its applicability. Compared with the traditional screw clamping device, this screw clamping device for confined space operation shortens the length of the gripper 3 and the width space required when the two grippers 3 are open, and ensures that the two grippers 3 can be opened normally when performing screw installation work in a confined space.

[0019] Specifically, the screwdriver holder 5 has a screwdriver tip through groove 7 at its center, and the screwdriver tip through groove 7 communicates with the receiving through groove 4. The conveying groove 6 is inclined upwards toward the receiving through groove 4, and the conveying groove 6 has an upwardly curved connecting groove at the groove opening located on the side wall of the conveying clamp 1. Figures 2 to 4 As shown, the screwdriver holder 5 has a screwdriver tip through groove 7 that allows the screwdriver tip to be inserted into the receiving through groove 4 for screw installation. The connecting groove is bent upward so that the screw can move along the conveying groove 6 to the receiving through groove 4.

[0020] Furthermore, mounting grooves 8 are provided on the left and right sides of the conveying clamp 1. The gripper 3 is hinged to the mounting groove 8 via a hinge seat. The length of the gripper 3 is greater than the length of the mounting groove 8. The inner side of the gripper 3 located in the mounting groove 8 is inclined outward toward the rear side of the conveying clamp 1. The inner side of the gripper 3 extending outside the mounting groove 8 is provided with a positioning groove 9. Further, the bottom surface of the conveying clamp 1 is provided with a mounting groove 8. The support 2 is hinged to the mounting groove 8 via a hinge seat. The inner side of the support 2 located in the mounting groove 8 is inclined outward toward the rear side of the conveying clamp 1. A support platform 10 is horizontally provided at one end of the support 2 located in front of the two grippers 3. The top surface of the support platform 10 is provided with a support groove 11. Figures 2 to 4 As shown, the inner side of the gripper 3 is inclined so that it can swing on the mounting groove 8 and complete the merging or opening action of the two grippers 3. The inner side of the support 2 is inclined so that the support 2 can swing in the mounting groove 8. The installation angle of the conveying clamp 1 can be adjusted by an external drive component such as a cylinder (not shown in the figure) or by the operator, which improves its applicability. This is a conventional connection drive structure and will not be described in detail. The positioning groove 9 of the two grippers 3 cooperates with the support groove 11 of the support platform 10 to limit the support and accommodate the screw conveyed in the through groove 4.

[0021] The above are merely specific embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A screw clamping device for operation in confined spaces, characterized in that: The device includes a conveyor clamp, a support, and two grippers. The upper part of the conveyor clamp is provided with a receiving groove, and the upper rear side of the conveyor clamp is provided with a screwdriver holder communicating with the receiving groove. The lower rear side of the conveyor clamp is provided with a conveying groove communicating with the receiving groove. The two grippers are hinged to the left and right sides of the conveyor clamp respectively and extend to the front side of the conveyor clamp when the two grippers are closed. The support is hinged to the bottom surface of the conveyor clamp and extends from the bottom surface of the conveyor clamp to the front side of the two grippers and can support screws.

2. The screw clamping device for working in confined spaces according to claim 1, characterized in that: The screwdriver holder has a screwdriver tip through groove at its center, and the screwdriver tip through groove is connected to the receiving through groove.

3. The screw clamping device for working in confined spaces according to claim 1, characterized in that: The conveying trough is inclined upward toward the receiving through groove, and the conveying trough has an upwardly curved connecting groove at the groove opening located on the side wall of the conveying clamp.

4. The screw clamping device for working in confined spaces according to claim 1, characterized in that: The left and right sides of the conveyor clamp are provided with mounting grooves, and the clamps are hinged to the mounting grooves through hinge seats.

5. A screw clamping device for working in confined spaces according to claim 4, characterized in that: The length of the gripper is greater than the length of the mounting groove. The inner side of the gripper located in the mounting groove is inclined outward toward the rear side of the conveyor clamp. The inner side of the gripper extending outside the mounting groove is provided with a positioning groove.

6. A screw clamping device for working in confined spaces according to claim 5, characterized in that: The bottom surface of the conveying clamp is provided with an installation groove. The support is hinged to the installation groove through a hinge seat. The inner side of the support located in the installation groove is inclined outward toward the rear side of the conveying clamp. A support platform is horizontally provided at one end of the support located in front of the two grippers. A support groove is provided on the top surface of the support platform.