An adjustable detection tool
By designing the base, threaded sleeve, lifting assembly, and limiting assembly, the problem of rapid pick-up and drop and height adjustment when inspecting screw threads in existing testing fixtures is solved, enabling rapid fixing and accurate inspection of screws.
Patent Information
- Application Number
- CN202522344639.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-05
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-11-05
AI Technical Summary
Existing testing fixtures are not convenient for quick pick-up, drop-off, and fixation when inspecting screw threads, and it is difficult to adjust the limit height to accommodate screws of different lengths.
The design incorporates a base, a screw sleeve, a lifting assembly, and a limiting assembly. The screw sleeve is driven by a motor to rotate and connect with the screw. Combined with the sliding adjustment of the lifting plate and the limiting assembly, the screw can be quickly fixed and its height can be adapted.
It enables quick screw loading, unloading, and fixing, automatically detects thread accuracy, and is applicable to screws of different lengths, thus improving detection efficiency.
Smart Images

Figure CN224681450U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of workpiece inspection, specifically an easily adjustable inspection fixture. Background Technology
[0002] Inspection fixtures are devices used to measure the size, shape, position, or other characteristics of parts or components during the manufacturing process. In the screw manufacturing process, inspection is required to ensure the accuracy of the screw threads.
[0003] The publication number CN219914232U discloses an easily adjustable testing fixture, including a positioning shell, the bottom of which is fixedly connected to a limiting device, which includes a motor.
[0004] The above-mentioned testing fixture solves the problem that existing testing fixtures do not have the ability to quickly position themselves. However, when testing screw threads, it is inconvenient to quickly pick up, put down and fix them. Different screws have different lengths, and it is inconvenient to adjust the limit height. Utility Model Content
[0005] The purpose of this invention is to provide an easily adjustable testing fixture to solve the technical problems in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: An easily adjustable testing fixture includes a base and a screw sleeve. The screw sleeve is installed at the top of the output shaft of a motor inside the base. A lifting assembly is installed on the top of the base, and a limit assembly is installed on the outside of the lifting assembly. A vertical plate is fixedly installed on the rear end of the top of the base, and an infrared sensor is connected to the outside of the vertical plate. The lifting assembly includes two slide rods and a lifting plate. The two slide rods are fixedly installed on the top of the base, and the lifting plate is movably installed outside the two slide rods. A spring is sleeved on the outside of the slide rods and at the bottom of the lifting plate. An insertion hole is opened through the top of the lifting plate, and a set of friction grooves is provided on the top of the lifting plate and outside the insertion hole. A metal pressure plate is movably installed on the rear end of the top of the lifting plate. The metal pressure plate and the lifting plate are connected by a rotating shaft. A positioning block is fixedly installed on the bottom of the metal pressure plate near the front end, and a pull plate is fixedly installed on the top of the metal pressure plate near the front end.
[0007] Preferably, the screw sleeve is connected to the motor output shaft inside the base, and the lifting plate is slidably positioned outside the two slide rods.
[0008] Preferably, the top of the screw sleeve has a screw hole, and the insertion hole and the screw hole on the top of the screw sleeve are located on the same vertical line.
[0009] Preferably, the metal pressure plate is rotatably mounted via a rotating shaft, and the positioning block matches the internal hexagonal groove of the screw.
[0010] Preferably, the limiting component includes two sliding sleeves and two fastening bolts. The two sliding sleeves are respectively movably installed on the outside of the two sliding rods, and the two fastening bolts are respectively connected through the outside of the two sliding sleeves. A handle is fixedly installed between the two sliding sleeves, and a buffer pad is installed at the bottom of the sliding sleeves.
[0011] Preferably, the sliding sleeve is located outside the sliding rod and is slidably disposed, with the two ends of the handle perpendicular to the rear of the two sliding sleeves respectively.
[0012] Preferably, the fastening bolt is threaded through the inside of the sliding sleeve.
[0013] Compared with the prior art, the beneficial effects of this utility model are: 1) This testing fixture has a screw inserted into the socket, and the positioning block is fixed in the internal hexagonal groove of the screw by a metal pressure plate. The screw sleeve rotates and connects with the screw, which can automatically detect the screw thread accuracy. The metal pressure plate facilitates the quick picking, putting and fixing of the screw.
[0014] 2) In this testing fixture, the sliding sleeve slides outside the slide rod and is fixed by fastening bolts. The sliding sleeve facilitates the adjustment of the lifting height of the lifting plate and limits the lifting plate. It is suitable for screws of different lengths. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of an easily adjustable testing fixture according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the overall rear structure in an embodiment of the present utility model; Figure 3 This is a schematic diagram of the lifting assembly in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the metal pressure plate in an embodiment of this utility model; Figure 5 This is a schematic diagram of the limiting component in an embodiment of the present invention.
[0016] In the diagram: 1. Base; 2. Screw sleeve; 3. Lifting assembly; 4. Limiting assembly; 5. Vertical plate; 6. Infrared sensor; 7. Slide rod; 8. Lifting plate; 9. Spring; 10. Insertion hole; 11. Friction groove; 12. Metal pressure plate; 13. Rotating shaft; 14. Positioning block; 15. Pull plate; 16. Slide sleeve; 17. Fastening bolt; 18. Handle; 19. Buffer pad. Detailed Implementation
[0017] 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. Example
[0018] Combination Figures 1-5 An easily adjustable detection fixture includes a base 1 and a screw sleeve 2. The screw sleeve 2 is installed at the top of the output shaft of a motor inside the base 1. A lifting assembly 3 is installed on the top of the base 1. A limit assembly 4 is installed on the outside of the lifting assembly 3. A vertical plate 5 is fixedly installed on the rear end of the top of the base 1. An infrared sensor 6 is connected to the outside of the vertical plate 5.
[0019] See Figure 3 and Figure 4 Furthermore, the lifting assembly 3 includes two sliding rods 7 and a lifting plate 8. The two sliding rods 7 are fixedly installed on the top of the base 1, and the lifting plate 8 is movably installed outside the two sliding rods 7. A spring 9 is sleeved on the outside of the sliding rods 7 and at the bottom of the lifting plate 8. An insertion hole 10 is opened through the top of the lifting plate 8. A set of friction grooves 11 is provided on the top of the lifting plate 8 and outside the insertion hole 10. A metal pressure plate 12 is movably installed on the top of the lifting plate 8 near the rear end. The metal pressure plate 12 is connected to the lifting plate 8 through a rotating shaft 13. A positioning block 14 is fixedly installed on the bottom of the metal pressure plate 12 near the front end, and a pull plate 15 is fixedly installed on the top of the metal pressure plate 12 near the front end. An infrared sensor 6 is electrically connected to the motor and control system inside the base 1. The height of the lifting plate 8 is detected by the infrared sensor 6, and the internal motor is driven by the control system.
[0020] The screw sleeve 2 is connected to the motor output shaft inside the base 1. The lifting plate 8 is located outside the two slide rods 7 and is slidably set. The lifting plate 8 slides upward automatically under the action of the spring 9.
[0021] The top of the screw sleeve 2 has a screw hole, and the insertion hole 10 and the screw hole on the top of the screw sleeve 2 are on the same vertical line. The screw hole on the top of the screw sleeve 2 is used to connect the screw and to check the screw thread.
[0022] The metal pressure plate 12 is rotatably mounted via the rotating shaft 13. The positioning block 14 matches the internal hexagonal groove of the screw. The metal pressure plate 12 provides a downward force to the positioning block 14 under the action of metal deformation, preventing the screw from rotating.
[0023] Specifically, the screw is inserted into the socket 19, and the positioning block 14 is fixed in the internal hexagonal groove of the screw by the metal pressure plate 12. The screw sleeve 2 rotates and connects with the screw, which can automatically detect the thread accuracy of the screw. The metal pressure plate 12 facilitates the quick picking, putting and fixing of the screw. Example
[0024] See Figure 5 Furthermore, based on Embodiment 1, the limiting component 4 includes two sliding sleeves 16 and two fastening bolts 17. The two sliding sleeves 16 are respectively movably installed on the outside of the two sliding rods 7, and the two fastening bolts 17 are respectively connected through the outside of the two sliding sleeves 16. A handle 18 is fixedly installed between the two sliding sleeves 16, and a buffer pad 19 is installed at the bottom of the sliding sleeve 16.
[0025] The sliding sleeve 16 is located outside the sliding rod 7 and is slidably set. The two ends of the handle 18 are respectively perpendicular to the rear of the two sliding sleeves 16. The sliding sleeves 16 slide up and down to adjust and adapt to screws of different lengths.
[0026] The fastening bolt 17 is threaded through the inside of the sliding sleeve 16. The fastening bolt 17 slides inward through the thread to contact the sliding rod 7, pressing the sliding rod 7 to fix the sliding sleeve 16.
[0027] Specifically, the sliding sleeve 16 slides outside the sliding rod 7 and is pressed and fixed by the fastening bolt 17. The sliding sleeve 16 facilitates the adjustment of the rising height of the lifting plate 8 and limits the lifting plate 8. It is suitable for screws of different lengths.
[0028] In actual operation, the screw sleeve 2 rotates and connects with the screw thread to test the screw thread accuracy; During lifting, the front end of the metal pressure plate 12 is pulled upward by the pull plate 15 and rotated to one side. Then, the screw to be tested is inserted into the socket 19. The metal pressure plate 12 is pulled to make the positioning block 14 snap into the internal hexagonal groove of the screw. The metal pressure plate 12 is used to press and fix the screw to prevent it from rotating. The motor inside the base 1 is started to make the screw sleeve 2 rotate. At the same time, the lifting plate 8 is pressed to make the bottom end of the screw threadedly connected to the screw hole at the top of the screw sleeve 2. The screw drives the lifting plate 8 to slide downward through the thread. The screw sleeve 2 detects the accuracy of the screw thread. The infrared sensor 6 detects that the lifting plate 8 has descended to the corresponding height. The control system controls the motor inside the base 1 to reverse. The lifting plate 8 drives the screw to automatically disengage under the action of the spring 9. When adjusting the limit, by rotating the two fastening bolts 17, the fastening bolts 17 slide outward through the threads to disengage from the slide rod 7, and slide the slide sleeve 16 to the appropriate height. The fastening bolts 17 slide inward under the action of the threads to press the slide rod 7 and fix it. The lifting plate 8 slides upward through the spring 9 and is limited by the slide sleeve 16.
[0029] The control method involved in this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical mechanisms, the control method and circuit connection will not be explained in detail.
[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An easily adjustable testing fixture, comprising a base (1) and a screw sleeve (2), wherein the screw sleeve (2) is installed at the top end of the output shaft of a motor inside the base (1), characterized in that: A lifting assembly (3) is installed on the top of the base (1), a limit assembly (4) is installed on the outside of the lifting assembly (3), a vertical plate (5) is fixedly installed on the rear end of the top of the base (1), and an infrared sensor (6) is connected to the outside of the vertical plate (5). The lifting assembly (3) includes two slide rods (7) and a lifting plate (8). The two slide rods (7) are fixedly installed on the top of the base (1). The lifting plate (8) is movably installed outside the two slide rods (7). A spring (9) is sleeved on the outside of the slide rods (7) and at the bottom of the lifting plate (8). An insertion hole (10) is opened through the top of the lifting plate (8). A set of friction grooves (11) is provided on the top of the lifting plate (8) and outside the insertion hole (10). A metal pressure plate (12) is movably installed on the top of the lifting plate (8) near the rear end. The metal pressure plate (12) is connected to the lifting plate (8) through a rotating shaft (13). A positioning block (14) is fixedly installed on the bottom of the metal pressure plate (12) near the front end. A pull plate (15) is fixedly installed on the top of the metal pressure plate (12) near the front end.
2. The easily adjustable testing fixture according to claim 1, characterized in that: The screw sleeve (2) is connected to the motor output shaft inside the base (1), and the lifting plate (8) is located outside the two slide rods (7) and is slidably set.
3. The easily adjustable testing fixture according to claim 1, characterized in that: The top of the screw sleeve (2) is provided with a screw hole, and the insertion hole (10) and the screw hole on the top of the screw sleeve (2) are located on the same vertical line.
4. The easily adjustable testing fixture according to claim 1, characterized in that: The metal pressure plate (12) is rotatably mounted via a rotating shaft (13), and the positioning block (14) matches the internal hexagonal groove of the screw.
5. The easily adjustable testing fixture according to claim 1, characterized in that: The limiting component (4) includes two sliding sleeves (16) and two fastening bolts (17). The two sliding sleeves (16) are respectively movably installed on the outside of the two sliding rods (7). The two fastening bolts (17) are respectively connected through the outside of the two sliding sleeves (16). A handle (18) is fixedly installed between the two sliding sleeves (16). A buffer pad (19) is installed at the bottom of the sliding sleeves (16).
6. The easily adjustable testing fixture according to claim 5, characterized in that: The sliding sleeve (16) is located outside the sliding rod (7) and is slidably disposed. The two ends of the handle (18) are respectively perpendicular to the rear of the two sliding sleeves (16).
7. The easily adjustable testing fixture according to claim 5, characterized in that: The fastening bolt (17) is threaded through the inside of the sliding sleeve (16).
Citation Information
Patent Citations
Detection tool convenient to adjust
CN219914232U