Ultrasonic flaw detector for circuit board material detection
By setting connection blocks and suction cups outside the ultrasonic transceiver of the ultrasonic flaw detector, the movement problem of the ultrasonic transceiver when detecting circuit board defects is solved, the equipment is stable and fixed and conveniently operated, and the detection efficiency and user experience are improved.
Patent Information
- Application Number
- CN202420174217.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-24
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-01-24
AI Technical Summary
When existing ultrasonic flaw detectors detect circuit board defects, the ultrasonic transceiver lacks a fixed structure and is easy to move, resulting in failure of detection effects and inconvenience to staff.
A connecting block is set outside the ultrasonic transceiver and a suction cup is connected to the bottom of it. The suction cup is used to fix the circuit board to prevent movement and facilitate disassembly and replacement through threaded connections.
The stable fixation of the ultrasonic transceiver is achieved, which improves the convenience and accuracy of detection, reduces the need for repositioning, and enhances the practicality and flexibility of the equipment.
Smart Images
Figure CN222189191U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ultrasonic flaw detectors, in particular to an ultrasonic flaw detector for detecting circuit board materials. Background Art
[0002] Ultrasonic flaw detector is a device used to detect internal defects or structures of materials. It uses the characteristics of ultrasonic waves propagating in materials to obtain information about the object being tested by emitting ultrasonic waves and receiving their echoes. In the production process of circuit board materials, ultrasonic flaw detectors can be used to detect the connections between solder joints, leads and components on circuit boards, and to detect whether there are defects or cracks in the circuit board material.
[0003] A general ultrasonic flaw detector mainly includes a host, connecting wires and an ultrasonic transceiver. When in use, the staff connects the host and the ultrasonic transceiver with a connecting wire, then places the ultrasonic transceiver on the surface of the circuit board, starts the host, moves the ultrasonic transceiver, and determines the defects of the circuit board material by observing the ripples on the host display. When the ultrasonic flaw detector detects defects on the circuit board, the staff needs to place the ultrasonic transceiver on the circuit board, then control the host to adjust the received data and record the data to identify and collect circuit board defects and avoid such defects during the next manufacturing.
[0004] According to the above, the existing ultrasonic flaw detector has the following shortcomings when in use:
[0005] When the ultrasonic flaw detector detects defects on the circuit board, the worker's hands need to leave the ultrasonic transceiver. Since the ultrasonic transceiver has no fixing device on the circuit board, the desktop may shake when the worker is operating the host or recording data, or the worker may accidentally touch the connecting line, which may cause the position of the ultrasonic transceiver to move and lose the detection effect of the circuit board defects. As a result, the worker needs to readjust the position of the ultrasonic transceiver to continue defect data identification and collection, which brings inconvenience to the staff.
[0006] At present, the patent with the announcement number CN216816551U discloses a digital ultrasonic flaw detector, and its technical points are: a digital ultrasonic flaw detector, including an ultrasonic flaw detector, a first rotating shaft is arranged at the upper end of the ultrasonic flaw detector, and a first cover plate is installed at the upper end of the first rotating shaft, a magnetic strip is installed on the inner wall of the first cover plate, and the two ends of the magnetic strip are screwed to a first fixing rod, a connection block is welded on one side of the ultrasonic flaw detector, and a second rotating shaft is installed on the inner wall of the connection block, a support rod is installed on the outer wall of the second rotating shaft, and a soft rubber sleeve is attached to one end of the support rod, a limit rod is installed on the inner wall of the support rod, and a magnetic block is installed at one end of the limit rod, and a second fixing rod is screwed to one side of the ultrasonic flaw detector. The digital ultrasonic flaw detector is provided with a third fixing rod and a magnetic sleeve, and the third fixing rod is provided to play a threaded fixing role on the magnetic sleeve. When the device is used, the setting of the magnetic sleeve facilitates the anti-detachment fixing of the device connection, thereby increasing the stability of the device. Although the above device solves the problem that the existing digital ultrasonic flaw detector is inconvenient to support the device, there is still the problem that the ultrasonic transceiver has no fixed structure and is easy to move. Summary of the invention
[0007] In view of the deficiencies of the prior art, the utility model provides an ultrasonic flaw detector for circuit board material detection to at least solve one of the problems raised by the background technology, such as: enabling an ultrasonic transceiver to be fixed on the circuit board.
[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ultrasonic flaw detector for circuit board material detection, comprising a flaw detector body and an ultrasonic transceiver connected to the flaw detector body, a connecting block being threadedly connected to the outer wall of the ultrasonic transceiver, the bottom surface of the connecting block and the bottom surface of the ultrasonic transceiver being located in the same plane, a placement groove being provided at the bottom of the connecting block, a suction cup being fixedly connected in the placement groove, and an air suction component being connected inside the connecting block.
[0009] Furthermore, the air suction component includes a No. 1 piston, a sliding groove, a connecting groove and a movable groove are provided in the connecting block, the sliding groove and the movable groove are connected through the connecting groove, a connecting tube is fixedly connected to the bottom of the sliding groove, an air guide groove connected to the connecting tube is provided in the middle of the suction cup, a movable tube is fixedly connected to the top of the connecting tube, the No. 1 piston is slidably connected to the top of the movable groove, the No. 2 piston is slidably connected to the inner wall of the sliding groove, the No. 3 piston is slidably connected to the bottom of the movable tube, the bottom surface of the No. 2 piston is in contact with the surface of the movable tube, a pressing rod is fixedly connected to the surface of the No. 1 piston, one end of the pressing rod passes through the top of the movable groove, a connecting rod is fixedly connected between the No. 3 piston and the No. 2 piston, and the movable tube and the sliding groove are sealed by the connecting rod.
[0010] Furthermore, the outer walls of the No. 1 piston, the No. 2 piston and the No. 3 piston are all sleeved with sealing rings.
[0011] Furthermore, one end of the pressing rod located outside the connecting block is fixedly connected to a pressing plate.
[0012] Furthermore, a fixing rod is fixedly connected to the top of the outer wall of the pressing rod, a fixing block corresponding to the position of the fixing rod is fixedly connected to the surface of the connecting block, the cross section of the fixing block is L-shaped, and the top surface of the fixing block is an arc surface.
[0013] Furthermore, an air hole is provided on the top of the sliding groove, and the air hole is communicated with the outside of the connecting block.
[0014] Furthermore, the cross section of the connecting block is set to be elliptical, and anti-slip pads are fixedly connected to both sides of the connecting block.
[0015] Compared with the prior art, the utility model has the following beneficial effects:
[0016] The utility model arranges a connection block outside the ultrasonic transceiver, connects a suction cup at the bottom of the connection block, and utilizes the adsorption effect of the suction cup to fix the ultrasonic transceiver, thereby preventing the ultrasonic transceiver from moving on the surface of the circuit board, thereby facilitating the staff to detect and record the defects of the circuit board, and preventing the ultrasonic transceiver from moving so that the staff need to re-position the defects of the circuit board, thereby enhancing the practicality of the ultrasonic transceiver; at the same time, by utilizing the threaded connection between the ultrasonic transceiver and the connection block, the staff can conveniently disassemble and assemble the connection block, thereby realizing the replacement and storage of the connection block, thereby improving the flexibility and practicality of the connection block. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;
[0018] Figure 2 It is a three-dimensional structural schematic diagram of the ultrasonic transceiver and the connecting block of the utility model;
[0019] Figure 3 It is a three-dimensional cross-sectional structural diagram of the connecting block and the pressing plate of the utility model;
[0020] Figure 4 It is a three-dimensional cross-sectional structural schematic diagram of the connection block, the connection pipe and the movable pipe of the utility model;
[0021] Figure 5 It is a three-dimensional cross-sectional structural schematic diagram of another form of the utility model;
[0022] Figure 6 It is a three-dimensional structural schematic diagram of the fixing block of the utility model.
[0023] In the figure: 1. flaw detector body; 2. ultrasonic transceiver; 3. connecting block; 4. placement slot; 5. suction cup; 6. connecting tube; 7. moving tube; 8. sliding slot; 9. moving slot; 10. No. 1 piston; 11. No. 2 piston; 12. No. 3 piston; 13. air hole; 14. connecting slot; 15. pressing rod; 16. pressing plate; 17. fixing block; 18. fixing rod; 19. connecting rod; 20. anti-slip pad; 21. air guide slot. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0025] like Figures 1 to 6 As shown, an ultrasonic flaw detector for circuit board material detection includes a flaw detector body 1 and an ultrasonic transceiver 2 connected to the flaw detector body 1, a connecting block 3 is threadedly connected to the outer wall of the ultrasonic transceiver 2, the bottom surface of the connecting block 3 and the bottom surface of the ultrasonic transceiver are located in the same plane, a placement groove 4 is opened at the bottom of the connecting block 3, a suction cup 5 is fixedly connected in the placement groove 4, and an air suction component is connected inside the connecting block 3.
[0026] like Figure 1 As shown, the ultrasonic flaw detector for circuit board material detection in the utility model is similar to the existing ultrasonic flaw detector structure, such as a digital ultrasonic flaw detector disclosed in the patent with publication number CN216816551U. The main improvement of the utility model is that the ultrasonic transceiver can be fixed on the circuit board, such as Figures 1 to 6 As shown, when an ultrasonic flaw detector for circuit board material detection in the utility model is in use, after the ultrasonic transceiver 2 finds defects on the surface of the circuit board, the staff can use the suction component to suck away the air between the suction cup 5 and the circuit board, so that the suction cup 5 is fixed on the surface of the circuit board, and then the ultrasonic transceiver 2 is fixed on the surface of the circuit board, so that the ultrasonic transceiver 2 cannot move, which is convenient for the staff to detect and record the defects on the circuit board through the flaw detector body 1; the threaded connection setting of the ultrasonic transceiver 2 and the connecting block 3 improves the convenience for the staff to disassemble and assemble the ultrasonic transceiver 2 and the connecting block 3, and is convenient for the staff to store the ultrasonic transceiver 2 and the connecting block 3.
[0027] By arranging a connection block 3 outside the ultrasonic transceiver 2, connecting a suction cup 5 at the bottom of the connection block 3, and utilizing the adsorption effect of the suction cup 5, the ultrasonic transceiver 2 is fixed to prevent the ultrasonic transceiver 2 from moving on the surface of the circuit board, thereby facilitating the staff to detect and record the defects of the circuit board, and preventing the ultrasonic transceiver 2 from moving and causing the staff to re-position the defects of the circuit board, thereby enhancing the practicality of the ultrasonic transceiver 2; at the same time, utilizing the threaded connection between the ultrasonic transceiver 2 and the connection block 3, the staff can conveniently disassemble and assemble the connection block 3, realize the replacement and storage of the connection block 3, and improve the flexibility and practicality of the connection block 3.
[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the air suction component includes a No. 1 piston 10, a sliding groove 8, a connecting groove 14 and a movable groove 9 are provided in the connecting block 3, the sliding groove 8 and the movable groove 9 are connected through the connecting groove 14, a connecting pipe 6 is fixedly connected to the bottom of the sliding groove 8, an air guide groove 21 connected to the connecting pipe 6 is provided in the middle of the suction cup 5, a movable tube 7 is fixedly connected to the top of the connecting tube 6, the No. 1 piston 10 is slidably connected to the top of the movable groove 9, a No. 2 piston 11 is slidably connected to the inner wall of the sliding groove 8, a No. 3 piston 12 is slidably connected to the bottom of the movable tube 7, the bottom surface of the No. 2 piston 11 is in contact with the surface of the movable tube 7, a pressing rod 15 is fixedly connected to the surface of the No. 1 piston 10, one end of the pressing rod 15 passes through the top of the movable groove 9, a connecting rod 19 is fixedly connected between the No. 3 piston 12 and the No. 2 piston 11, and the movable tube 7 and the sliding groove 8 are sealed by the connecting rod 19.
[0029] Specifically, when the ultrasonic transceiver 2 detects a defect on the circuit board, the staff can press the pressing rod 15 downward, and the No. 1 piston 10 will move downward along the movable groove 9, and the air in the movable groove 9 will be compressed. The compressed air will enter the sliding groove 8 along the connecting groove 14, and then push the No. 2 piston 11 to rise. The rising of the No. 2 piston 11 will drive the connecting rod 19 and the No. 3 piston 12 to rise. The No. 3 piston 12 will extract the air in the connecting pipe 6 during the rising process, and then extract the air between the suction cup 5 and the circuit board to achieve the adsorption of the suction cup 5 and the circuit board; when the staff needs to cancel the adsorption of the suction cup 5, they can blow air to the suction cup 5 by pulling up the pressing rod 15 to separate the suction cup 5 from the circuit board;
[0030] Through this arrangement, the staff can conveniently fix the connecting block 3 and the circuit board, thereby preventing the ultrasonic transceiver 2 from moving, which brings convenience to the staff and improves the staff's usage experience.
[0031] like Figure 3 and Figure 5As shown, the outer walls of the No. 1 piston 10 , the No. 2 piston 11 and the No. 3 piston 12 are all sleeved with sealing rings.
[0032] Specifically, the sealing ring can improve the sealing performance, prevent gas leakage from causing failure to achieve the suction effect on the suction cup 5, and increase the overall practicality and stability of the ultrasonic flaw detector.
[0033] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, one end of the pressing rod 15 located outside the connecting block 3 is fixedly connected to a pressing plate 16 .
[0034] Specifically, the pressing plate 16 can increase the contact area of the staff's hands when pressing, improve the comfort of the staff's hands, and provide convenience for the staff to pull up the pressing rod 15, thereby increasing the staff's user experience.
[0035] like Figure 3 , Figure 5 and Figure 6 As shown, a fixing rod 18 is fixedly connected to the top of the outer wall of the pressing rod 15, and a fixing block 17 corresponding to the position of the fixing rod 18 is fixedly connected to the surface of the connecting block 3. The cross section of the fixing block 17 is L-shaped, and the top surface of the fixing block 17 is an arc surface.
[0036] Specifically, the fixing block 17 is an elastic block, such as silicone, rubber, etc. When the staff presses down the pressing rod 15, the outer wall of the fixing rod 18 will squeeze the arc surface of the fixing block 17, causing the fixing block 17 to deform, and the fixing rod 18 will enter between the fixing block 17 and the connecting block 3, and the fixing rod 18 will be limited, thereby preventing the air pressure in the connecting block 3 from pushing the No. 1 piston 10 to move, resulting in unstable adsorption between the suction cup 5 and the circuit board, thereby increasing the stability of the suction cup 5; when the supervisor needs to pull up the pressing rod 15, the pressing rod 15 can be rotated to separate the fixing rod 18 from the fixing block 17, and the staff can pull up the pressing rod 15, which brings convenience to the staff.
[0037] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, an air hole 13 is opened at the top of the sliding groove 8, and the air hole 13 is connected to the outside of the connecting block 3.
[0038] Specifically, the air hole 13 can reduce the air pressure in the space of the sliding groove 8 at the top of the No. 2 piston 11, thereby facilitating the No. 2 piston 11 to move up and down, increasing the practicality of the No. 2 piston 11, and further increasing the overall practicality of the ultrasonic flaw detector.
[0039] like Figure 1 and Figure 2 As shown, the cross section of the connecting block 3 is elliptical, and anti-slip pads 20 are fixedly connected to both sides of the connecting block 3 .
[0040] Specifically, the anti-slip pad 20 is made of materials such as silicone and rubber, and a plurality of vertical bars are connected to the surface of the anti-slip pad 20. The elliptical connecting block 3 makes it more comfortable for the staff to hold the connecting block 3 for ultrasonic testing and prevents the staff from hurting their hands. The setting of the anti-slip pad 20 can increase the friction with the staff's hands, so that the staff can hold the connecting block 3 more stably.
[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An ultrasonic flaw detector for circuit board material detection, comprising a flaw detector body (1) and an ultrasonic transceiver (2) connected to the flaw detector body (1), characterized in that: The outer wall of the ultrasonic transceiver (2) is threadedly connected to a connecting block (3); the bottom surface of the connecting block (3) and the bottom surface of the ultrasonic transceiver (2) are located in the same plane; a placement groove (4) is provided at the bottom of the connecting block (3); a suction cup (5) is fixedly connected in the placement groove (4); and an air suction component is connected inside the connecting block (3).
2. The ultrasonic flaw detector for circuit board material detection according to claim 1, characterized in that: The air suction component comprises a first piston (10), a sliding groove (8), a connecting groove (14) and a movable groove (9) are provided in the connecting block (3), the sliding groove (8) and the movable groove (9) are connected via the connecting groove (14), a connecting pipe (6) is fixedly connected to the bottom of the sliding groove (8), an air guide groove (21) connected to the connecting pipe (6) is provided in the middle of the suction cup (5), a movable pipe (7) is fixedly connected to the top of the connecting pipe (6), the first piston (10) is slidably connected to the top of the movable groove (9), and the sliding groove (8) A second piston (11) is slidably connected to the inner wall, a third piston (12) is slidably connected to the bottom of the moving tube (7), the bottom surface of the second piston (11) is in contact with the surface of the moving tube (7), a pressing rod (15) is fixedly connected to the surface of the first piston (10), one end of the pressing rod (15) passes through the top of the moving groove (9), a connecting rod (19) is fixedly connected between the third piston (12) and the second piston (11), and the moving tube (7) and the sliding groove (8) are sealed by the connecting rod (19).
3. The ultrasonic flaw detector for circuit board material detection according to claim 2, characterized in that: The outer walls of the No. 1 piston (10), the No. 2 piston (11) and the No. 3 piston (12) are all sleeved with sealing rings.
4. An ultrasonic flaw detector for circuit board material detection according to claim 2 or 3, characterized in that: One end of the pressing rod (15) located outside the connecting block (3) is fixedly connected to a pressing plate (16).
5. An ultrasonic flaw detector for circuit board material detection according to claim 2 or 3, characterized in that: A fixing rod (18) is fixedly connected to the top of the outer wall of the pressing rod (15), and a fixing block (17) corresponding to the position of the fixing rod (18) is fixedly connected to the surface of the connecting block (3). The cross section of the fixing block (17) is L-shaped, and the top surface of the fixing block (17) is an arc surface.
6. The ultrasonic flaw detector for circuit board material detection according to claim 4, characterized in that: A fixing rod (18) is fixedly connected to the top of the outer wall of the pressing rod (15), and a fixing block (17) corresponding to the position of the fixing rod (18) is fixedly connected to the surface of the connecting block (3). The cross section of the fixing block (17) is L-shaped, and the top surface of the fixing block (17) is an arc surface.
7. An ultrasonic flaw detector for circuit board material testing according to claim 2, 3 or 6, characterized in that: An air hole (13) is provided at the top of the sliding groove (8), and the air hole (13) is communicated with the outside of the connecting block (3).
8. The ultrasonic flaw detector for circuit board material detection according to claim 4, characterized in that: An air hole (13) is provided at the top of the sliding groove (8), and the air hole (13) is communicated with the outside of the connecting block (3).
9. The ultrasonic flaw detector for circuit board material detection according to claim 5, characterized in that: An air hole (13) is provided at the top of the sliding groove (8), and the air hole (13) is communicated with the outside of the connecting block (3).
10. An ultrasonic flaw detector for circuit board material testing according to claim 1, 2, 3, 6, 8 or 9, characterized in that: The cross section of the connection block (3) is elliptical, and anti-slip pads (20) are fixedly connected to both sides of the connection block (3).