Visual inspection equipment for clamping groove of hairspring copper seat of pressure gauge
By designing a visual inspection device for the copper seat groove of pressure gauges, and utilizing components such as a rotary table and sensors, comprehensive inspection and foreign object removal of the copper seat groove are achieved. This solves the problems of inaccurate inspection and missed detection in existing technologies, and improves the reliability of inspection and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-03-31
AI Technical Summary
During the production of pressure gauges, dimensional deviations, burrs, or foreign matter residues in the copper seat groove can lead to inaccurate installation of the hairspring, affecting measurement accuracy and sensitivity. Existing visual inspection methods are prone to missing these defects, and visual fatigue can result in poor quality control.
A visual inspection device for pressure gauge hairspring copper seat slots was designed. It adopts components such as a rotary table, permanent magnet tray, visual inspection module, and air jet needle to achieve flexible inspection of copper seats of different sizes. Combined with adjustment mechanism and sensor, it ensures full coverage of all parts of the slot, automatically removes foreign objects, and improves the accuracy and reliability of inspection.
It enables comprehensive and accurate detection of copper base slots, automatically removes foreign objects, reduces false alarms, ensures the reliability of detection results and production efficiency, and avoids delays and increased costs caused by false alarms.
Smart Images

Figure CN224066673U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to pressure gauge detection technical field, concretely is a pressure gauge hairspring copper seat clamping groove visual inspection equipment. BACKGROUND
[0002] In the production process of pressure gauge, as the core transmission component of spring tube type pressure gauge, the installation precision of hairspring directly influences the measurement accuracy of instrument, and the hairspring is usually fixed in the copper seat clamping groove, if the clamping groove has size deviation, surface burr or foreign matter residue, will lead to the assembly deviation of hairspring or uneven torque transmission, and further cause the problems such as pointer back difference and sensitivity decline.
[0003] When the burr or metal scrap residue of clamping groove causes local stress concentration after the installation of hairspring, the hairspring is prone to appear and circle, circle phenomenon when relaxing or tightening, however, since the size of copper seat is small, during detection, it is usually detected by visual inspection, and the clamping groove is observed by the operator through magnifying glass, and it is easy to cause missed detection due to visual fatigue, and affects product quality control. INVENTION CONTENTS
[0004] In view of the defects of the prior art, the utility model provides a pressure gauge hairspring copper seat clamping groove visual inspection equipment, which has the advantages of being suitable for detection of different size copper seats, and solves the problems in the background art.
[0005] To achieve the above purpose, the utility model provides the following technical scheme: a pressure gauge hairspring copper seat clamping groove visual inspection equipment, which comprises a bottom plate, a rotating frame is arranged above the bottom plate, a rotating table is hingedly connected to the middle end of the rotating frame, a first motor is installed on the upper surface of the bottom plate, the output end of the first motor is fixedly connected with the bottom of the rotating frame through a shaft coupling, and an adjusting mechanism for adjusting the inclination angle of the rotating table is arranged between the rotating table and the rotating frame.
[0006] The upper surface of the rotating table is fixedly connected with distributed permanent magnets, a group of trays are adsorbed on the upper surface of the rotating table, each tray is annular, an annular placing groove is formed in the upper surface of each tray, and the widths of the annular placing grooves are different.
[0007] The rear end of the bottom plate is fixedly connected with a lifting frame, a detection frame is slidably connected inside the lifting frame, a support is slidably connected inside the detection frame, a visual inspection module is fixedly installed at the bottom of the support, a connecting pipe is installed at the rear end of the support, an electromagnetic valve is fixedly installed at the top end of the connecting pipe, and a jet needle is fixedly connected at the bottom end of the connecting pipe.
[0008] Furthermore, the adjustment mechanism includes two cylinders, which are fixedly connected to both ends of the rotating frame. The output ends of the two cylinders are fixedly connected to contact balls, which abut against the bottom of the rotating platform. A level sensor is fixedly installed on the bottom of the rotating platform.
[0009] The above scheme, through the setting of a horizontal sensor and an adjustment mechanism, enables the adjustment of the tilt angle of the rotating platform.
[0010] Furthermore, a first lead screw is rotatably connected between the inner top wall and the inner bottom wall of the lifting frame, the rear end of the detection frame is threadedly connected to the first lead screw, guide rods are fixedly connected to both the left and right sides of the lifting frame, the rear end of the detection frame is slidably sleeved with the two guide rods, and a first motor is fixedly installed at the top of the lifting frame, the output end of the first motor is fixedly connected to the top of the first lead screw.
[0011] The above scheme, through the setting of the first lead screw and guide rod, enables the lifting frame to move stably up and down, and through the setting of the guide rod, enables the testing frame to move stably.
[0012] Furthermore, a second lead screw is rotatably connected between the front and rear ends of the detection frame, the bracket is threadedly connected to the second lead screw, a displacement sensor is installed at the rear end of the bracket, a second motor is installed at the front end of the detection frame, and the output end of the second motor is fixedly connected to one end of the second lead screw.
[0013] The above scheme, through the setting of displacement sensors, enables the positioning of the visual inspection module.
[0014] Furthermore, the top end of the connecting pipe is connected to an external air supply hose.
[0015] With the above solution, and by setting up the air supply hose, the solenoid valve can automatically open when air is needed, thereby processing the inside of the slot.
[0016] Furthermore, the upper surface of the rotary table is provided with multiple annular scale lines.
[0017] The above solution, with its circular scale lines, makes it easier for staff to place the trays concentrically with the rotating table.
[0018] Furthermore, light panels are fixedly installed on both sides of the testing frame.
[0019] The above solution, through the setting of the light panel, enables supplementary lighting for the rotating stage, thereby improving the accuracy of detection.
[0020] Furthermore, a control host is fixedly installed at the front end of the base plate, and the control host is electrically connected to the cylinder, the first motor, the second motor, the vision inspection module, and the solenoid valve.
[0021] Through the above scheme, the control host can achieve the purpose of data processing and control of data and electrical components.
[0022] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:
[0023] This visual inspection device for pressure gauge spiral spring copper seat slots utilizes a rotating platform with distributed permanent magnets on its upper surface to attract a set of trays. Each tray is annular with a different width of annular placement slots on its upper surface, allowing for easy placement of copper seats of varying diameters. This enhances overall flexibility and meets the inspection needs of copper seats of different specifications. It adapts to diverse production tasks without requiring equipment replacement or complex adjustments. By utilizing a first lead screw, guide rod, and second lead screw, along with a first motor and a second motor, the visual inspection module can be moved vertically and horizontally. The distance between the visual inspection module and the workpiece can be precisely adjusted according to the different sizes of the slots, ensuring comprehensive coverage of all parts of the slot during inspection and improving the accuracy and completeness of the inspection.
[0024] This pressure gauge spiral spring copper seat slot visual inspection equipment features an adjustment mechanism between the rotating table and the rotating frame. Through the cooperation of a cylinder and a contact ball, along with a horizontal sensor, the tilt angle of the rotating table can be adjusted. Combined with the rotation of the table, the visual inspection module can inspect the copper seat slot from different angles. It can not only inspect the surface of the slot but also thoroughly inspect hard-to-reach areas such as dead corners, greatly improving the comprehensiveness and reliability of the inspection. This ensures that the quality of the copper seat slot meets the standard requirements. When the visual inspection module detects a defect in the slot, the solenoid valve automatically opens, supplying air to the air jet needle through the air supply hose. This air jet treatment effectively removes foreign objects from inside the slot, avoiding false alarms caused by foreign objects, improving the reliability of the inspection, ensuring the accuracy of the inspection results, and reducing production delays and cost increases caused by false alarms. Attached Figure Description
[0025] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this application. Figure 1 ;
[0026] Figure 2 This is a side view of the overall structure of this application;
[0027] Figure 3 This is a sectional view of the overall structure of this application from the front.
[0028] Figure 4This is a three-dimensional schematic diagram of the overall structure of this application. Figure 2 ;
[0029] Figure 5 This is a structural diagram of the rotary table in this application;
[0030] Figure 6 This is a structural diagram of the support structure in this application.
[0031] In the picture:
[0032] 1. Base plate; 101. First motor;
[0033] 2. Rotating frame;
[0034] 3. Rotating stage; 301. Permanent magnet; 302. Annular scale line;
[0035] 4. Adjustment mechanism;
[0036] 5. Tray; 501. Circular placement groove;
[0037] 6. Lifting frame; 7. Inspection frame; 8. Support frame; 9. Vision inspection module;
[0038] 10. Connecting pipe; 1001. Solenoid valve; 1002. Jet needle;
[0039] 11. Cylinder; 1101. Contact ball;
[0040] 12. Horizontal sensor; 13. First lead screw; 14. Guide rod; 15. First motor; 16. Second lead screw; 17. Displacement sensor; 18. Second motor; 19. Light panel; 20. Control host. Detailed Implementation
[0041] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0042] Please see Figure 1 , Figure 2 and Figure 3This embodiment of a visual inspection device for pressure gauge hairspring copper seat slots includes a base plate 1, a rotating frame 2 mounted on top of the base plate 1, a rotating table 3 hinged to the middle of the rotating frame 2, a first motor 101 mounted on the upper surface of the base plate 1, and the output end of the first motor 101 fixedly connected to the bottom of the rotating frame 2 via a coupling. An adjustment mechanism 4 for adjusting the tilt angle of the rotating table 3 is provided between the rotating table 3 and the rotating frame 2. By rotating the rotating table 3 and adjusting its angle, the area of the copper seat slot can be effectively and fully inspected.
[0043] Please see Figure 1 , Figure 3 and Figure 5 The upper surface of the rotating platform 3 is provided with multiple annular scale lines 302. The annular scale lines 302 make it easy for the staff to place the tray 5 and make it concentric with the rotating platform 3. The adjustment mechanism 4 includes two cylinders 11, which are fixedly connected to both ends of the rotating frame 2. The output ends of the two cylinders 11 are fixedly connected to contact balls 1101. The two contact balls 1101 abut against the bottom of the rotating platform 3. A level sensor 12 is fixedly installed at the bottom of the rotating platform 3. The tilt angle of the rotating platform can be adjusted by setting the level sensor 12 and the adjustment mechanism 4.
[0044] Please see Figure 1 , Figure 3 and Figure 5 The upper surface of the rotating platform 3 is fixedly connected with distributed permanent magnets 301. A set of trays 5 are replaceably adsorbed on the upper surface of the rotating platform 3. Each tray 5 is annular, and an annular placement groove 501 is opened on the upper surface of each tray 5. The width of each annular placement groove 501 is different. Through the above arrangement, it is convenient to place copper bases of different diameters, thereby improving the overall flexibility. At the same time, through the adsorption of permanent magnets 301 and trays 5, when the rotating platform 3 rotates, the trays 5 can rotate with it.
[0045] Please see Figure 1 , Figure 2 and Figure 6A lifting frame 6 is fixedly connected to the rear end of the base plate 1. A detection frame 7 is slidably connected up and down inside the lifting frame 6. A support 8 is slidably connected back and forth inside the detection frame 7. A vision inspection module 9 is fixedly installed at the bottom of the support 8. A connecting pipe 10 is installed at the rear end of the support 8. A solenoid valve 1001 is fixedly installed at the top end of the connecting pipe 10. An air jet needle 1002 is fixedly connected to the bottom end of the connecting pipe 10. The lifting frame 6 enables the vision inspection module 9 to move up and down. The detection frame 7 enables the vision inspection module 9 to move back and forth, allowing adjustment of the position of the vision inspection module 9, thus facilitating the inspection of slots of different sizes. The air jet needle 1002 can spray air into the slot when a defect is detected, avoiding false alarms caused by foreign objects inside. The top end of the connecting pipe 10 is connected to an external air supply hose. When air is needed, the solenoid valve 1001 can automatically open to process the inside of the slot.
[0046] Please see Figure 1 , Figure 2 and Figure 4 A first lead screw 13 is rotatably connected between the inner top wall and inner bottom wall of the lifting frame 6. The rear end of the testing frame 7 is threadedly connected to the first lead screw 13. Guide rods 14 are fixedly connected to both the left and right sides of the lifting frame 6. The rear end of the testing frame 7 is slidably sleeved with the two guide rods 14. A first motor 15 is fixedly installed at the top of the lifting frame 6. The output end of the first motor 15 is fixedly connected to the top end of the first lead screw 13. Through the setting of the first lead screw 13 and the guide rods 14, the lifting frame 6 can achieve stable up and down movement. Through the setting of the guide rods 14, the testing frame 7 can achieve stable movement. A second lead screw 16 is rotatably connected between the front and rear ends of the testing frame 7. The bracket 8 is threadedly connected to the second lead screw 16. A displacement sensor 17 is installed at the rear end of the detection frame 7, and a second motor 18 is installed at the front end of the detection frame 7. The output end of the second motor 18 is fixedly connected to one end of the second lead screw 16. The position of the vision detection module 9 can be located by setting the displacement sensor 17. Light plates 19 are fixedly installed on both sides of the detection frame 7. The light plates 19 can provide supplementary lighting for the rotary table 3 to improve detection accuracy. A control host 20 is fixedly installed at the front end of the base plate 1. The control host 20 is electrically connected to the cylinder 11, the first motor 15, the second motor 18, the vision detection module 9, and the solenoid valve 1001. The control host 20 can realize the purpose of data processing and control of data and electrical components.
[0047] This embodiment of a visual inspection device for pressure gauge hairspring copper seat slots utilizes a rotating table 3 with distributed permanent magnets 301 on its upper surface to attract a set of trays 5. Each tray 5 is annular with a different width of annular placement groove 501 on its upper surface, allowing for easy placement of copper seats of different diameters. This improves overall flexibility and can meet the inspection needs of copper seats of different specifications without requiring equipment replacement or complex adjustments, thus adapting to diverse production tasks. By utilizing structures such as the first lead screw 13, guide rod 14, and second lead screw 16, along with the first motor 15 and the second motor 18, the visual inspection module 9 can be moved up and down and forward and backward, respectively. The distance between the visual inspection module 9 and the workpiece can be precisely adjusted according to the different sizes of the slots, ensuring that the inspection process can fully cover all parts of the slot, improving the accuracy and comprehensiveness of the inspection. A connection is provided between the rotating table 3 and the rotating frame 2. Equipped with an adjustment mechanism 4, through the cooperation of cylinder 11 and contact ball 1101, and the setting of level sensor 12, the tilt angle of rotary table 3 can be adjusted. At the same time, rotary table 3 can rotate, tilt, and rotate, enabling visual inspection module 9 to inspect copper seat slots from different angles. It can not only inspect the surface of the slot, but also fully inspect hard-to-reach areas such as dead corners, greatly improving the comprehensiveness and reliability of the inspection, ensuring that the quality of copper seat slots meets the standard requirements. When the visual inspection module detects defects in the slot, solenoid valve 1001 can automatically open, supplying air to air jet needle 1002 through air supply hose to spray air into the inside of the slot, which can effectively remove foreign objects inside the slot, avoid false alarms caused by foreign objects, improve the reliability of the inspection, ensure the accuracy of the inspection results, and reduce production delays and cost increases caused by false alarms.
[0048] The working principle of the above embodiment is as follows: The copper base to be tested is placed in an annular tray 5 of appropriate size on the rotary table 3. The annular scale line 302 on the rotary table 3 is used to ensure that the tray 5 is concentric with the rotary table 3. At the same time, the top of the connecting pipe 10 is connected to the external air source through the air supply hose to prepare for the air supply to the jet needle 1002. The control host 20 issues a command to start the cylinder 11 in the adjustment mechanism 4. The two cylinders 11 push the contact ball 1101, so that the rotary table 3 tilts around its hinge point with the rotating frame 2. The horizontal sensor 12 at the bottom of the rotary table 3 monitors the tilt angle in real time and feeds the data back to the control host 20 until a suitable detection angle is reached. It can be adjusted at any time during the detection process. According to the size of the copper base slot, the control host 20 controls the first motor 15 and the second motor 18 to operate. The first motor 15 drives the first lead screw 13 to rotate, so that the detection frame 7 moves up and down along the guide rod 14; the second Motor 18 drives the second lead screw 16 to rotate, causing the bracket 8 to move back and forth within the inspection frame 7. Displacement sensor 17 monitors the position of bracket 8 in real time and feeds the data back to the control host 20, enabling precise positioning of the vision inspection module 9 and ensuring it maintains a suitable distance from the slot. The vision inspection module 9 begins to inspect the copper base slot. The light panel 19 of the inspection frame 7 provides sufficient light to the inspection area, improving inspection accuracy. When the vision inspection module 9 detects a defect in the slot, the control host 20 immediately controls the solenoid valve 1001 to open. Gas in the air supply hose enters the air jet needle 1002 through the connecting pipe 10 to spray air into the slot, removing any foreign objects and preventing false alarms caused by foreign objects. During the inspection process, the rotary table 3 rotates, and its tilt angle allows the vision inspection module 9 to inspect the slot from different angles, including the surface and dead corners of the slot, ensuring comprehensive and reliable inspection.
[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0050] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A visual detection device for the copper seat slot of the pressure gauge hairspring, comprising a base plate (1), characterized in that: The upper side of the bottom plate (1) is provided with a rotating frame (2), the middle end of the rotating frame (2) is hingedly connected with a rotating table (3), the upper surface of the bottom plate (1) is provided with a first motor (101), the output end of the first motor (101) is fixedly connected with the bottom of the rotating frame (2) through a shaft coupling, and an adjusting mechanism (4) for adjusting the inclination angle of the rotating table (3) is arranged between the rotating table (3) and the rotating frame (2). The upper surface of the rotating table (3) is fixedly connected with distributed permanent magnets (301), and the upper surface of the rotating table (3) is replaceably adsorbed with a group of trays (5); each tray (5) is annular, the upper surface of each tray (5) is provided with an annular placing groove (501), and the widths of the annular placing grooves (501) are different. The rear end of the bottom plate (1) is fixedly connected with a lifting frame (6), the inner top and bottom walls of the lifting frame (6) are rotatably connected with a first lead screw (13), the rear end of the detection frame (7) is threadedly connected with the first lead screw (13), the left and right sides of the lifting frame (6) are fixedly connected with guide rods (14), the rear end of the detection frame (7) is slidably sleeved with the two guide rods (14), the top end of the lifting frame (6) is fixedly connected with a first motor (15), and the output end of the first motor (15) is fixedly connected with the top end of the first lead screw (13).
2. The visual detection equipment for the copper seat slot of the pressure gauge hairspring according to claim 1, characterized in that: The front and rear ends of the detection frame (7) are rotatably connected with a second lead screw (16), the support frame (8) is threadedly connected with the second lead screw (16), the rear end of the support frame (8) is provided with a displacement sensor (17), the front end of the detection frame (7) is provided with a second motor (18), and the output end of the second motor (18) is fixedly connected with one end of the second lead screw (16).
3. The visual detection equipment for the copper seat slot of the pressure gauge hairspring according to claim 1, characterized in that: The top end of the connecting pipe (10) is connected with a gas supply hose.
4. The visual detection equipment for the copper seat slot of the pressure gauge hairspring according to claim 1, characterized in that: The upper surface of the rotating table (3) is provided with a plurality of annular scale lines (302).
5. The visual detection equipment for the copper seat slot of the pressure gauge hairspring according to claim 1, characterized in that: The two side surfaces of the detection frame (7) are fixedly connected with lamp panels (19).
6. The visual detection equipment for the copper seat slot of the pressure gauge hairspring according to claim 1, characterized in that: The top end of the connecting pipe (10) is connected with a gas supply hose.
7. The visual detection equipment for the copper seat slot of the pressure gauge hairspring according to claim 1, characterized in that: 8. The visual detection equipment for the copper seat slot of the pressure gauge hairspring according to claim 1, characterized in that: The front end of the bottom plate (1) is fixedly provided with a control host (20), and the control host (20) is electrically connected with the air cylinder (11), the first motor (15), the second motor (18), the visual detection module (9) and the electromagnetic valve (1001).