Jig with precise alignment function

Abstract

The utility model discloses a jig with an accurate alignment function, relates to the technical field of jigs, and aims to solve the problems that a clamping surface of a certain workpiece is not a vertical surface, the stress area of a clamping point is small when the workpiece is clamped by a flexible universal jig, and the workpiece is easy to damage during fixation when the surface of the fixed workpiece is easy to damage. A supporting seat is fixedly mounted on the base, a machined part is placed on the supporting seat, a mounting seat groove is formed in the middle of the supporting seat, a mounting seat is mounted in the mounting seat groove, and positioning mechanisms are fixedly mounted at the four corners of the upper portion of the supporting seat correspondingly. An alignment mechanism mounting frame is fixedly mounted above the supporting seat, an alignment mechanism is fixedly mounted in the middle of the lower portion of the upper end of the alignment mechanism mounting frame, and the alignment mechanism comprises a fixing plate, an edge fixing block, a center fixing block, a camera and an annular lamp.

Description

TECHNICAL FIELD

[0001] The utility model relates to jig technical field, concretely is a kind of jig with accurate alignment function. BACKGROUND

[0002] Jig refers to a kind of general tool used in woodworking, blacksmithing, bench work, machinery, electrical control and other industries. The main function of these tools is to assist in controlling position or action to ensure accuracy and efficiency of processing, assembly or testing. It is divided into process assembly type jig and test type jig, process assembly type jig: for machining, welding processing, assembly and other processes, a kind of tooling fixture designed to facilitate processing and meet the need of precision;Test type jig: special tool for detecting product performance, such as ICT test jig, FCT test jig, etc. Jig usually has high precision and repeatability, which can ensure that all workpieces produced on the same jig are fixed within a specific range, ensuring the precision and interchangeability of products. The use of jig can reduce working time, improve production efficiency, simplify complex work, so that unskilled workers can also complete the work that requires skilled workers. Jig is widely used in various industrial fields, such as machinery, electronics, automobile, aerospace, etc.

[0003] Chinese patent No. CN101422868B discloses a rounding jig, which comprises a first jig, a second jig, a third jig and a turnover assembly. The first jig has a first arc structure, the second jig has a second arc structure and a third arc structure, and the third jig has a fourth arc structure. The first arc structure and the second arc structure form a first accommodating groove, and the third arc structure and the fourth arc structure form a second accommodating groove. A first adjusting screw is arranged between the first jig and the second jig to adjust the distance between the first jig and the second jig. A second adjusting screw is arranged between the second jig and the third jig to adjust the distance between the second jig and the third jig. The combination of the first jig, the second jig and the third jig is accommodated in the turnover assembly and can be turned over in the turnover assembly. The rounding jig adjusts the accommodating groove by adjusting screw to accommodate workpieces of different sizes.

[0004] The existing technical solutions in the above have the following defects: the clamping surface of some workpieces is not a vertical surface. When clamped by a flexible universal jig, the force area of the clamping point is small, and when the surface of the fixed workpiece is easily damaged, the workpiece is easily damaged during fixing. Therefore, we propose a jig with precise alignment function to solve the problems mentioned above. UTILITY MODEL CONTENTS

[0005] The purpose of this utility model is to provide a fixture with precise alignment function to solve the problem mentioned in the background art that the clamping surface of the workpiece is not a vertical surface, and when the workpiece is clamped by a flexible universal fixture, the force-bearing area of ​​the clamping point is small, and when the surface of the workpiece is easily damaged, it is easy to cause damage to the workpiece during the fixing process.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fixture with precise alignment function, comprising a base and a control system. A support seat is fixedly installed on the top of the base, and a workpiece is placed on the top of the support seat. An installation slot is formed inside the middle position of the support seat, and an installation seat is installed inside the installation slot. Positioning mechanisms are fixedly installed at the four corners above the support seat. An alignment mechanism mounting frame is fixedly installed on the top of the support seat, and an alignment mechanism is fixedly installed at the middle position below the upper end of the alignment mechanism mounting frame. The control system includes a first electric telescopic cylinder, a drive motor, a second electric telescopic cylinder, a camera, a ring light, a control unit, a CCD sensor, a signal processing module, and a storage module.

[0007] Preferably, the base and the support are fixedly connected by a support frame, and four first electric telescopic cylinders are rectangularly arranged between the mounting seat and the inner wall of the mounting seat groove. The upper and lower ends of the first electric telescopic cylinders are fixedly connected to the inner wall of the mounting seat and the mounting seat groove, respectively.

[0008] Preferably, the positioning mechanism includes a positioning mechanism fixing frame, a drive motor, a rotating shaft, a positioning mechanism rotating sleeve, a positioning mechanism sliding seat, a positioning mechanism sliding seat groove, a second electric telescopic cylinder groove, a second electric telescopic cylinder, a positioning plate, and an anti-slip pad. The positioning mechanism fixing frame is located below the positioning mechanism, and the lower end of the positioning mechanism fixing frame is fixedly connected to the support base. A positioning mechanism rotating sleeve is installed on one side of the upper part of the positioning mechanism fixing frame. A drive motor is fixedly installed on the rear side of the upper part of the positioning mechanism fixing frame. A rotating shaft is rotatably installed at the middle position inside the upper part of the positioning mechanism fixing frame. The rotating shaft is connected to the output end of the drive motor and is keyed to the positioning mechanism rotating sleeve.

[0009] Preferably, a positioning mechanism sliding seat is installed on one side of the rotating sleeve of the positioning mechanism, and a positioning mechanism sliding seat groove is opened inside the rotating sleeve of the positioning mechanism. The positioning mechanism sliding seat groove is slidably connected to the positioning mechanism sliding seat. A second electric telescopic cylinder groove is opened inside the positioning mechanism sliding seat. A second electric telescopic cylinder is installed inside the second electric telescopic cylinder groove. One end of the second electric telescopic cylinder is fixedly connected to the inner wall of the second electric telescopic cylinder groove, and the other end of the second electric telescopic cylinder is fixedly connected to the inner wall of the positioning mechanism sliding seat groove. A positioning plate is fixedly installed on one side of the positioning mechanism sliding seat, and an anti-slip pad is fixedly attached to one side of the positioning plate.

[0010] Preferably, the alignment mechanism includes a fixed plate, an edge fixing block, a center fixing block, a camera, and a ring light. The fixed plate is located at the upper end of the alignment mechanism and is fixedly connected to the mounting frame of the alignment mechanism. Edge fixing blocks are symmetrically installed on both sides below the fixed plate. The edge fixing blocks are right-angled triangular mechanisms, and the included angle between the edge fixing blocks and the fixed plate is 150 degrees.

[0011] Preferably, a central fixing block is fixedly installed at the middle position below the fixing plate, and cameras are fixedly installed at the middle positions below the central fixing block and the middle positions below the edge fixing blocks. A ring light is installed on the outside of the central fixing block, and the ring light is fixedly connected to the fixing plate.

[0012] Preferably, a control unit slot is provided at the middle position of the upper end of the alignment mechanism mounting bracket. The control unit slot is equipped with a control unit, a CCD sensor, a signal processing module, and a storage module. The control unit is electrically connected to the storage module and the signal processing module. The camera is electrically connected to the CCD sensor. The CCD sensor is electrically connected to the control unit. The control unit is electrically connected to the first electric telescopic cylinder, the drive motor, the second electric telescopic cylinder, and the ring lamp.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In the clamping and fixing process of this utility model, the drive motor is started, which drives the rotating shaft to rotate. The rotating shaft drives the rotating sleeve of the positioning mechanism to rotate, thereby adjusting the tilt angle of the positioning plate so that the tilt angle of the positioning plate is parallel to that of the side end face of the workpiece. The second electric telescopic cylinder extends to push the sliding seat of the positioning mechanism outward from the sliding seat groove of the positioning mechanism, thereby causing the anti-slip pad to contact the workpiece and thus fixing and clamping the workpiece. When the thickness of the workpiece is less than the height of the positioning mechanism fixing frame, the first electric telescopic cylinder extends, which drives the mounting seat to move upward, thereby bringing the workpiece closer to the positioning plate, which facilitates the clamping and fixing of the workpiece. This solves the problem that when the clamping surface of some workpieces is not a vertical surface, the clamping point has a small force area when clamped by a flexible universal jig, and the workpiece is easily damaged during fixing when the surface of the workpiece is fragile.

[0015] 2. In this invention, during fixing, the workpiece is placed above the mounting base, and three cameras from different directions capture images of the workpiece. The images captured by the cameras are sent to a CCD sensor, which converts the image signals into digital signals and sends them to the control unit. The control unit sends the signals to the signal processing module, which processes these digital signals to extract feature values ​​of the captured target, such as edges and corners. Through image processing technology, the actual position of the product is determined and compared with the previously set reference position to calculate the actual offset value of the product. When an offset occurs, the module prompts for adjustment of the workpiece position, achieving precise alignment during fixing. Attached Figure Description

[0016] Figure 1 This is the front view of the present invention;

[0017] Figure 2 This is a schematic diagram of the positioning mechanism in this utility model;

[0018] Figure 3 This is a schematic diagram of the alignment mechanism in this utility model;

[0019] Figure 4 This is a schematic diagram illustrating the principle of this utility model.

[0020] In the diagram: 1. Base; 2. Support frame; 3. Support seat; 4. Mounting seat slot; 5. First electric telescopic cylinder; 6. Mounting seat; 7. Machining part; 8. Positioning mechanism; 9. Alignment mechanism mounting frame; 10. Control unit slot; 11. Alignment mechanism; 12. Positioning mechanism fixing frame; 13. Drive motor; 14. Rotating shaft; 15. Positioning mechanism rotating sleeve; 16. Positioning mechanism sliding seat; 17. Positioning mechanism sliding seat slot; 18. Second electric telescopic cylinder slot; 19. Second electric telescopic cylinder; 20. Positioning plate; 21. Anti-slip pad; 22. Fixing plate; 23. Edge fixing block; 24. Center fixing block; 25. Camera; 26. Ring light; 27. Control system; 28. Control unit; 29. ​​CCD sensor; 30. Signal processing module; 31. Storage module. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figures 1-4An embodiment of this utility model provides a fixture with precise alignment function, including a base 1 and a control system 27. A support seat 3 is fixedly installed on the top of the base 1, and a workpiece 7 is placed on the top of the support seat 3. An installation slot 4 is opened in the middle of the support seat 3, and an installation seat 6 is installed in the installation slot 4. Positioning mechanisms 8 are fixedly installed at the four corners above the support seat 3. An alignment mechanism mounting frame 9 is fixedly installed on the top of the support seat 3. An alignment mechanism 11 is fixedly installed at the middle position below the upper end of the alignment mechanism mounting frame 9. The control system 27 includes a first electric telescopic cylinder 5, a drive motor 13, a second electric telescopic cylinder 19, a camera 25, a ring light 26, a control unit 28, a CCD sensor 29, a signal processing module 30, and a storage module 31.

[0023] When clamping and fixing, the drive motor 13 is started, and the drive motor 13 drives the rotating shaft 14 to rotate. The rotating shaft 14 drives the rotating sleeve 15 of the positioning mechanism to rotate, thereby adjusting the tilt angle of the positioning plate 20 so that the tilt angle of the positioning plate 20 is parallel to that of the side end face of the workpiece 7. The second electric telescopic cylinder 19 is extended so that the second electric telescopic cylinder 19 pushes the sliding seat 16 of the positioning mechanism outward into the sliding seat groove 17 of the positioning mechanism, thereby causing the anti-slip pad 21 to contact the workpiece 7, thereby fixing and clamping the workpiece. When the thickness of the workpiece is less than the height of the positioning mechanism fixing frame 12, the first electric telescopic cylinder 5 is extended. The first electric telescopic cylinder 5 drives the mounting seat 6 to move upward, thereby bringing the workpiece 7 closer to the positioning plate 20, which facilitates the clamping and fixing of the workpiece 7.

[0024] See Figure 2 The base 1 and the support 3 are fixedly connected by the support frame 2. Four first electric telescopic cylinders 5 are rectangularly arranged between the mounting base 6 and the inner wall of the mounting slot 4. The upper and lower ends of the first electric telescopic cylinders 5 are fixedly connected to the inner wall of the mounting base 6 and the mounting slot 4, respectively.

[0025] See Figure 2The positioning mechanism 8 includes a positioning mechanism fixing frame 12, a drive motor 13, a rotating shaft 14, a positioning mechanism rotating sleeve 15, a positioning mechanism sliding seat 16, a positioning mechanism sliding seat groove 17, a second electric telescopic cylinder groove 18, a second electric telescopic cylinder 19, a positioning plate 20, and an anti-slip pad 21. The positioning mechanism fixing frame 12 is located below the positioning mechanism 8. The lower end of the positioning mechanism fixing frame 12 is fixedly connected to the support seat 3. The positioning mechanism rotating sleeve 15 is installed on one side above the positioning mechanism fixing frame 12. The drive motor 13 is fixedly installed on the rear side of the upper end of the positioning mechanism fixing frame 12. The rotating shaft 14 is rotatably installed in the middle position inside the upper end of the positioning mechanism fixing frame 12. The rotating shaft 14 is connected to the output end of the drive motor 13. The rotating shaft 14 is keyed to the positioning mechanism rotating sleeve 15. A positioning mechanism sliding seat 16 is installed on one side of the positioning mechanism rotating sleeve 15. A positioning mechanism sliding seat groove 17 is opened inside the positioning mechanism rotating sleeve 15. The positioning mechanism sliding seat groove 17 is slidably connected to the positioning mechanism sliding seat 16. A second electric telescopic cylinder groove 18 is opened inside the positioning mechanism sliding seat 16. A second electric telescopic cylinder 19 is installed inside the second electric telescopic cylinder groove 18. One end of the second electric telescopic cylinder 19 is fixedly connected to the inner wall of the second electric telescopic cylinder groove 18, and the other end of the second electric telescopic cylinder 19 is fixedly connected to the inner wall of the positioning mechanism sliding seat groove 17. A positioning plate 20 is fixedly installed on one side of the positioning mechanism sliding seat 16, and an anti-slip pad 21 is fixedly attached to one side of the positioning plate 20.

[0026] See Figure 2 The alignment mechanism 11 includes a fixed plate 22, edge fixing blocks 23, a central fixing block 24, a camera 25, and a ring light 26. The fixed plate 22 is located at the upper end of the alignment mechanism 11 and is fixedly connected to the alignment mechanism mounting frame 9. Edge fixing blocks 23 are symmetrically installed on both sides below the fixed plate 22. The edge fixing blocks 23 are right-angled triangular mechanisms, and the angle between the edge fixing blocks 23 and the fixed plate 22 is 150 degrees. The central fixing block 24 is fixedly installed at the middle position below the fixed plate 22. Cameras 25 are fixedly installed at the middle position below the central fixing block 24 and the middle position below the edge fixing blocks 23. A ring light 26 is installed on the outside of the central fixing block 24 and is fixedly connected to the fixed plate 22.

[0027] See Figure 2A control unit slot 10 is provided at the middle position of the upper end of the alignment mechanism mounting bracket 9. The control unit slot 10 is equipped with a control unit 28, a CCD sensor 29, a signal processing module 30, and a storage module 31. The control unit 28 is electrically connected to the storage module 31 and the signal processing module 30. The camera 25 is electrically connected to the CCD sensor 29. The CCD sensor 29 is electrically connected to the control unit 28. The control unit 28 is electrically connected to the first electric telescopic cylinder 5, the drive motor 13, the second electric telescopic cylinder 19, and the ring light 26.

[0028] Working Principle: During fixing, the workpiece 7 is placed above the mounting base 6. Three cameras 25 from different directions capture images of the workpiece 7. The images captured by the cameras 25 are sent to the CCD sensor 29. The CCD sensor 29 converts the image signals into digital signals and sends them to the control unit 28. The control unit 28 sends the signals to the signal processing module 30. The signal processing module 30 processes these digital signals, extracts the feature values ​​of the captured target, such as edges and corners, and uses image processing technology to determine the actual position of the product. It then compares this position with the previously set reference position to calculate the actual offset value of the product. When an offset occurs, it prompts the adjustment of the position of the workpiece 7, achieving precise alignment during fixing. The drive motor 13 drives the rotating shaft 14 to rotate, which in turn drives the rotating sleeve 15 of the positioning mechanism to rotate, thereby adjusting the tilt angle of the positioning plate 20 so that the tilt angle of the positioning plate 20 is parallel to that of the side end face of the workpiece 7. The second electric telescopic cylinder 19 extends to push the sliding seat 16 of the positioning mechanism outward into the sliding seat groove 17 of the positioning mechanism, thereby causing the anti-slip pad 21 to come into contact with the workpiece 7, thus fixing and clamping the workpiece. When the thickness of the workpiece is less than the height of the positioning mechanism fixing frame 12, the first electric telescopic cylinder 5 extends, which drives the mounting seat 6 to move upward, thereby bringing the workpiece 7 closer to the positioning plate 20, making it easier to clamp and fix the workpiece 7.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A fixture with precise alignment function, comprising a base (1) and a control system (27), characterized in that: A support base (3) is fixedly installed above the base (1). A workpiece (7) is placed above the support base (3). An installation slot (4) is opened inside the middle position of the support base (3). An installation seat (6) is installed inside the installation slot (4). A positioning mechanism (8) is fixedly installed at the four corners above the support base (3). An alignment mechanism mounting bracket (9) is fixedly installed above the support base (3). An alignment mechanism (11) is fixedly installed at the middle position below the upper end of the alignment mechanism mounting bracket (9). The control system (27) includes a first electric telescopic cylinder (5), a drive motor (13), a second electric telescopic cylinder (19), a camera (25), a ring light (26), a control unit (28), a CCD sensor (29), a signal processing module (30), and a storage module (31).

2. The fixture with precise alignment function according to claim 1, characterized in that: The base (1) and the support (3) are fixedly connected by a support frame (2). Four first electric telescopic cylinders (5) are rectangularly arranged between the mounting base (6) and the inner wall of the mounting slot (4). The upper and lower ends of the first electric telescopic cylinders (5) are fixedly connected to the inner wall of the mounting base (6) and the mounting slot (4) respectively.

3. A fixture with precise alignment function according to claim 2, characterized in that: The positioning mechanism (8) includes a positioning mechanism fixing frame (12), a drive motor (13), a rotating shaft (14), a positioning mechanism rotating sleeve (15), a positioning mechanism sliding seat (16), a positioning mechanism sliding seat groove (17), a second electric telescopic cylinder groove (18), a second electric telescopic cylinder (19), a positioning plate (20), and an anti-slip pad (21). The positioning mechanism fixing frame (12) is located below the positioning mechanism (8). The lower end of the positioning mechanism fixing frame (12) is fixedly connected to the support seat (3). The positioning mechanism rotating sleeve (15) is installed on one side above the positioning mechanism fixing frame (12). The drive motor (13) is fixedly installed on the rear side of the upper end of the positioning mechanism fixing frame (12). The rotating shaft (14) is rotatably installed at the middle position inside the upper end of the positioning mechanism fixing frame (12). The rotating shaft (14) is connected to the output end of the drive motor (13). The rotating shaft (14) is keyed to the positioning mechanism rotating sleeve (15).

4. A fixture with precise alignment function according to claim 3, characterized in that: A positioning mechanism sliding seat (16) is installed on one side of the positioning mechanism rotating sleeve (15). A positioning mechanism sliding seat groove (17) is opened inside the positioning mechanism rotating sleeve (15). The positioning mechanism sliding seat groove (17) is slidably connected to the positioning mechanism sliding seat (16). A second electric telescopic cylinder groove (18) is opened inside the positioning mechanism sliding seat (16). A second electric telescopic cylinder (19) is installed inside the second electric telescopic cylinder groove (18). One end of the second electric telescopic cylinder (19) is fixedly connected to the inner wall of the second electric telescopic cylinder groove (18). The other end of the second electric telescopic cylinder (19) is fixedly connected to the inner wall of the positioning mechanism sliding seat groove (17). A positioning plate (20) is fixedly installed on one side of the positioning mechanism sliding seat (16). An anti-slip pad (21) is fixedly attached to one side of the positioning plate (20).

5. A fixture with precise alignment function according to claim 4, characterized in that: The alignment mechanism (11) includes a fixed plate (22), an edge fixing block (23), a center fixing block (24), a camera (25), and a ring light (26). The fixed plate (22) is located at the upper end of the alignment mechanism (11). The fixed plate (22) is fixedly connected to the alignment mechanism mounting frame (9). The edge fixing blocks (23) are symmetrically installed on both sides below the fixed plate (22). The edge fixing blocks (23) are right-angled triangular mechanisms. The angle between the edge fixing blocks (23) and the fixed plate (22) is 150 degrees.

6. A fixture with precise alignment function according to claim 5, characterized in that: A central fixing block (24) is fixedly installed at the middle position below the fixing plate (22). Cameras (25) are fixedly installed at the middle position below the central fixing block (24) and at the middle position below the edge fixing block (23). A ring light (26) is installed on the outside of the central fixing block (24). The ring light (26) is fixedly connected to the fixing plate (22).

7. A fixture with precise alignment function according to claim 6, characterized in that: A control unit slot (10) is provided at the middle position of the upper end of the alignment mechanism mounting bracket (9). The control unit slot (10) is equipped with a control unit (28), a CCD sensor (29), a signal processing module (30), and a storage module (31). The control unit (28) is electrically connected to the storage module (31) and the signal processing module (30). The camera (25) is electrically connected to the CCD sensor (29). The CCD sensor (29) is electrically connected to the control unit (28). The control unit (28) is electrically connected to the first electric telescopic cylinder (5), the drive motor (13), the second electric telescopic cylinder (19), and the ring light (26).

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