A turntable clamping mechanism for precision assembly

CN224780301UActive Publication Date: 2026-09-22SHANGHAI ZELI PRECISION ELECTROMECHANICAL TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202521694128.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-11
Publication Date
2026-09-22
Estimated Expiration
2035-08-11

AI Technical Summary

Technical Problem

现有技术中,人工摆放效率低且易因疲劳产生定位偏差,难以满足规模化生产需求;传统机械夹具存在明显缺陷:仅单一方向限位,工件易偏移,尤其对异形结构工件无法形成三维固定,导致后续组装错位;夹持部件多为固定结构,适配性差,更换工件需整体换夹具,增加成本与时间;自动化集成度低,难与转盘式流水线匹配,制约效率;刚性夹持易致工件变形或松动,影响精度

Benefits of technology

[0009]与现有技术相比,本实用新型的有益效果是:本实用新型的有益效果在于:通过顶紧块从底部顶紧工件、夹持板插齿从上部限位的双向夹持结构,结合异形放置孔的初步定位,形成三维固定,有效避免工件组装过程中的偏移,显著提升定位精度;顶紧块底部弹簧提供弹性顶紧力,既能稳固夹持工件,又可避免刚性夹持导致的工件变形,插齿采用长短搭配的凹形设计,适配多种异形工件,增强夹持通用性;驱动组件驱动夹持板自动动作,配合转盘的步进式转动,可与流水线高效集成,实现多工位连续夹持作业,大幅提升组装效率;且夹持组件集成于转盘安装缺口内,布局紧凑,各部件连接方式简单,便于拆装维护,降低设备运维成本。

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224780301U_ABST
    Figure CN224780301U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of rotary table clamping mechanisms for precision assembly, it is related to mechanical manufacturing and automation field.It includes rotary table, clamping assembly and drive assembly, rotary table edge is equipped with multiple installation notches, clamping assembly is arranged in installation notch, including clamping base, tight block, clamping plate;Clamping base has placing hole, tight block bottom portion is equipped with spring, and workpiece is tightly pressed from bottom portion, clamping plate one end has inserted tooth from upper portion limit, drive assembly drives clamping plate movement.This mechanism avoids workpiece deviation by three-dimensional fixing, spring provides elastic tight pressing force to prevent deformation, inserted tooth design adapts special-shaped workpiece, can be integrated with assembly line to realize continuous operation, improve positioning accuracy and assembly efficiency, compact structure is easy to maintain.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of mechanical automation technology, specifically a turntable clamping mechanism for precision assembly. Background Technology

[0002] In the field of precision assembly, workpiece positioning accuracy has a significant impact on quality and efficiency. Current technologies suffer from low efficiency and susceptibility to positioning deviations due to fatigue, making them unsuitable for large-scale production. Traditional mechanical fixtures have significant drawbacks: they only limit movement in one direction, making workpieces prone to shifting, especially for irregularly shaped workpieces, failing to provide three-dimensional fixation and leading to misalignment during subsequent assembly; clamping components are mostly fixed structures with poor adaptability, requiring a complete fixture replacement for workpiece changes, increasing cost and time; low automation integration makes them difficult to integrate with rotary production lines, limiting efficiency; and rigid clamping can easily cause workpiece deformation or loosening, affecting accuracy. Therefore, there is an urgent need for a multi-dimensional, stable positioning, highly adaptable, and efficiently integrated clamping mechanism. Summary of the Invention

[0003] The purpose of this invention is to provide a turntable clamping mechanism for precision assembly, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a turntable clamping mechanism for precision assembly, comprising: A turntable, the edge of which is provided with multiple mounting notches; A clamping assembly is disposed within the aforementioned mounting notch, the clamping assembly comprising: A clamping base is fixed within the mounting notch, and the clamping base is provided with a placement hole; A clamping block is movably disposed within the clamping base to press against the bottom end of the workpiece; a clamping plate is movably connected above the placement hole of the clamping base, and one end of the clamping plate is provided with insert teeth, which press against the upper end of the workpiece. A drive assembly that drives the clamping plate to move back and forth.

[0005] Preferably, the bottom of the clamping block is provided with a spring, one end of which is connected to the clamping block and the other end is connected to the clamping base to provide clamping force.

[0006] Preferably, a support base is provided on one side of the clamping base, and the clamping base is movably mounted on the support base.

[0007] Preferably, the placement hole is an irregularly shaped hole adapted to the shape of the workpiece, used to achieve the initial positioning of the workpiece.

[0008] Preferably, the drive assembly includes a drive cylinder and a drive arm, the drive arm being movably connected to the clamping plate, and the drive cylinder driving the drive arm to move.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: The bidirectional clamping structure, which uses a clamping block to clamp the workpiece from the bottom and a clamping plate with teeth to limit the position from the top, combined with the initial positioning of the irregular placement hole, forms a three-dimensional fixation, effectively avoiding workpiece displacement during assembly and significantly improving positioning accuracy; the spring at the bottom of the clamping block provides elastic clamping force, which can not only firmly clamp the workpiece but also avoid workpiece deformation caused by rigid clamping; the teeth adopt a concave design with a combination of long and short teeth, which can adapt to a variety of irregular workpieces and enhance clamping versatility; the drive component drives the clamping plate to move automatically, and with the stepping rotation of the turntable, it can be efficiently integrated with the production line to realize multi-station continuous clamping operations, greatly improving assembly efficiency; moreover, the clamping component is integrated into the turntable mounting notch, with a compact layout, simple connection of each component, easy disassembly and maintenance, and reduced equipment operation and maintenance costs. Attached Figure Description

[0010] Figure 1 is a schematic diagram of the structure of this utility model; Figure 2 is a schematic diagram of the clamping component structure of this utility model; Figure 3 is a schematic diagram of the drive component structure of this utility model; Figure 4 is a schematic diagram of the clamping base structure of this utility model.

[0011] In the diagram: 1. Turntable; 11. Mounting notch; 12. Stepper motor; 2. Clamping assembly; 21. Clamping base; 22. Top clamping block; 23. Clamping plate; 24. Shaping tooth; 25. Spring; 26. Support base; 3. Drive assembly; 31. Drive cylinder; 32. Drive arm; 100. Workpiece. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0013] Please refer to Figures 1 to 4. This utility model provides a technical solution: a turntable clamping mechanism for precision assembly, including a turntable 1, clamping components 2, and a driving component 3 for driving the clamping components 2. The turntable 1 has multiple mounting notches 11 on its edge for mounting the clamping components 2. The turntable 1 is driven to rotate at a fixed mounting angle by a stepper motor 12. Each mounting notch 11 corresponds to a clamping component 2, which clamps the workpiece for inspection. Four to six clamping components 2 are spaced apart along the edge of the turntable 1. Multiple clamping components 2 can continuously clamp, install, and inspect the workpiece 100, improving efficiency.

[0014] In an embodiment of this utility model, the clamping assembly 2 includes a clamping base 21, a clamping block 22, and a clamping plate 23. The clamping base 21 is fixed to the edge of the turntable 1; the clamping block 22 is movably connected to the clamping base 21 and is used to clamp the workpiece from the bottom. The clamping plate 23 is connected to the upper part of the clamping base 21, and one end of the clamping plate 23 is provided with a tooth 24, which can be inserted into the upper edge of the workpiece to limit the workpiece 100 from the top. The driving assembly 3 drives the clamping plate 23 to move back and forth.

[0015] In an embodiment of this utility model, a spring 25 is provided at the bottom of the clamping block 22. One end of the spring 25 is connected to the clamping block 22, and the other end is connected to the clamping base 21 to provide clamping force.

[0016] In this embodiment of the invention, the bottom end of the clamping plate 23 is slidably mounted on the support base 26, which is fixedly mounted on one side of the clamping base 21. The insert teeth 24 are located on the side of the clamping plate 23 near the placement hole 4. Four insert teeth 24 are arranged side-by-side, with the two outer insert teeth being longer than the two middle insert teeth. The lengths of the two outer insert teeth are the same, and the lengths of the two middle insert teeth are also the same. The line connecting the tips of the four insert teeth forms a concave shape, which can more securely clamp the workpiece.

[0017] In an embodiment of this utility model, the placement hole 4 is an irregularly shaped hole adapted to the shape of the workpiece 100, used to achieve the initial positioning of the workpiece.

[0018] In an embodiment of this utility model, the drive assembly 3 includes a drive cylinder 31 and a drive arm 32. The drive arm 32 is movably connected to the clamping plate 23, and the drive cylinder 31 drives the drive arm 32 to move.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A turntable clamping mechanism for precision assembly, characterized in that, include: A turntable, the edge of which is provided with multiple mounting notches; A clamping assembly is disposed within the aforementioned mounting notch, the clamping assembly comprising: A clamping base is fixed within the mounting notch, and the clamping base is provided with a placement hole; A clamping block is movably disposed within the clamping base to press against the bottom end of the workpiece; A clamping plate is movably connected above the placement hole of the clamping base, and one end of the clamping plate is provided with... The clamping plate has teeth, and the clamping plate presses against the upper end of the workpiece through the teeth; A drive assembly that drives the clamping plate to move back and forth.

2. The turntable clamping mechanism for precision assembly according to claim 1, characterized in that: The bottom of the clamping block is equipped with a spring, one end of which is connected to the clamping block and the other end is connected to the clamping base to provide clamping force.

3. The turntable clamping mechanism for precision assembly according to claim 2, characterized in that: The clamping base is provided with a support seat on one side, and the clamping base is movably mounted on the support seat.

4. A turntable clamping mechanism for precision assembly according to claim 3, characterized in that: The placement hole is an irregularly shaped hole adapted to the shape of the workpiece, used to achieve the initial positioning of the workpiece.

5. A turntable clamping mechanism for precision assembly according to claim 1, characterized in that: The drive assembly includes a drive cylinder and a drive arm, the drive arm being movably connected to the clamping plate, and the drive cylinder driving the drive arm to move.