一种通孔压铆螺柱的同心度测试工装
By designing a combination of a drive mechanism and a laser sensor, a single-turn locking and real-time data recording of the through-hole press-fit stud concentricity testing fixture was achieved, solving the problem of data overlap in existing technologies and improving detection accuracy and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU JIA XU PRECISION HARDWARE CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-17
AI Technical Summary
Existing through-hole press-fit stud concentricity testing fixtures cannot achieve single-turn locking during stud rotation, resulting in data overlap, increasing the difficulty of data analysis and affecting accuracy.
A concentricity testing fixture including a drive mechanism was designed. Through the combination of a slide, a turntable, a locking pin and an annular groove, it can automatically lock after each rotation. Combined with a laser sensor and a concentricity meter, the concentricity data of the stud can be monitored and recorded in real time.
It enables single-turn data recording for stud concentricity detection, avoids data overlap, improves data accuracy and analysis efficiency, and can quickly locate positions with large radius errors.
Smart Images
Figure CN224517654U_ABST
Abstract
Claims
1. A concentricity testing fixture for through-hole press-fit studs, comprising a test bench (1), wherein a controller (13) is provided on the left side of the test bench (1), and the input end of the controller (13) is electrically connected to an external power supply; and two symmetrically distributed limit seats (9) are provided on the upper end of the test bench (1), and a rotating shaft (4) is rotatably connected to the upper end of each limit seat (9). characterized in that It also includes a drive mechanism (3); The drive mechanism (3) includes a slide groove (31), a turntable (32), a locking pin (33), and an annular groove (35). The slide groove (31) is located in the middle of the right-side rotating shaft (4). The turntable (32) is slidably connected to the outer surface of the right-side rotating shaft (4). The ribs inside the turntable (32) are slidably connected to the inside of the slide groove (31). The upper end of the left side surface of the turntable (32) is fixedly connected to the locking pin (33). The upper end of the right side surface of the right-side limiting seat (9) is provided with an annular groove (35). The upper end of the annular groove (35) is provided with a positioning hole. The left side surface of the locking pin (33) is slidably connected to the inside of the annular groove (35). The locking pin (33) is installed in conjunction with the positioning hole. The upper end of the right side surface of the turntable (32) is provided with an indicator arrow (14). The upper end of the right side surface of the right-side limiting seat (9) is provided with a marker point (15). The indicator arrow (14) and the marker point (15) are installed in conjunction.
2. The concentricity testing tool for a through-hole press-in-stud according to claim 1, wherein: The drive mechanism (3) also includes a spring (34), an external thread (36) and a limit button (37). The external thread (36) is fixedly connected to the right end of the outer surface of the right rotating shaft (4). The external thread (36) is threadedly connected to the internal thread inside the limit button (37). The spring (34) is located between the turntable (32) and the limit button (37). The spring (34) is sleeved on the outer surface of the right rotating shaft (4).
3. The concentricity testing tool for a through-hole press-in-stud according to claim 1, wherein: The rotating shaft (4) is fixedly connected to a top pressure seat (5) at the end near the center of the test bench (1), and the top pressure seat (5) at the end near the center of the test bench (1) is a conical structure.
4. The concentricity testing tool for a through-hole press-in-stud according to claim 1, wherein: A three-axis robotic arm (6) is provided at the rear end of the upper surface of the test bench (1), and a concentricity meter (7) is provided at the upper end of the three-axis robotic arm (6). The concentricity meter (7) is bidirectionally electrically connected to the controller (13).
5. The concentricity testing tool for a through-hole press-in-stud according to claim 1, wherein: The test bench (1) has fixed seats (2) fixedly connected to both the left and right ends of its upper surface. A guide rod (17) is fixedly connected to the rear end of the two fixed seats (2). The rear ends of the two limit seats (9) are slidably connected to the middle of the guide rod (17). A bidirectional screw (10) is rotatably connected to the front end of the two fixed seats (2). The right end of the bidirectional screw (10) extends to the right side of the right fixed seat (2). A knob (11) is fixedly connected to the right end of the bidirectional screw (10). The front ends of the two limit seats (9) are threadedly connected to the corresponding ends of the bidirectional screw (10).
6. The concentricity test tool for a through-hole press-in-stud according to claim 1, wherein: A second bellows (16) is provided between the right side surface of the turntable (32) and the left side surface of the limit button (37). The second bellows (16) is sleeved on the outer surface of the right rotating shaft (4). A first bellows (12) is provided between the left side surface of the left limit seat (9) and the right side surface of the left fixed seat (2), between the relative inner surfaces of the two limit seats (9), and between the right side surface of the right limit seat (9) and the left side surface of the right fixed seat (2). The first bellows (12) is sleeved on the outer surface of the bidirectional screw (10).
7. The concentricity testing fixture for a through-hole press-fit stud according to claim 1, characterized in that: It also includes a laser sensor (8), which is located in the middle of the right limit seat (9). A laser reflective surface is provided in the middle of the right surface of the left limit seat (9). The laser sensor (8) and the laser reflective surface are laterally corresponding. The laser sensor (8) is bidirectionally electrically connected to the controller (13).