Crystal resonator air tightness detection equipment

Abstract

The invention relates to the technical field of detection equipment, in particular to crystal resonator air tightness detection equipment, which comprises a frame box, an air tightness detection device and an air tightness detection device, the mounting plate is fixedly connected to the frame box; the sealing door is arranged on the mounting plate; the hydraulic machine is fixedly connected to the frame box; the pressing block is fixedly connected to the telescopic end of the hydraulic machine; the piston plate is connected into the frame box in a sliding manner; the discharging plate is arranged in the frame box; the detection butt joint is arranged in the frame box, and a screen display of the detection butt joint is arranged on the frame box. According to the invention, the resistance value of the crystal resonator with poor air tightness is influenced by air pressure, so that the result can be directly and intuitively obtained through the change of the resistance value when the air tightness detection device is used for judging the air tightness result, the use mode of the air tightness detection device does not generate negative influence, and the detection operation is more convenient and higher in cost performance.

Description

Technical Field

[0001] The present invention relates to the technical field of detection equipment, and in particular to a crystal resonator airtightness detection device. Background Art

[0002] A crystal resonator is an electronic component that uses the piezoelectric effect of a crystal plate to generate a high-precision oscillation frequency. It is usually used in communication equipment and measuring instruments. During the production process, the crystal resonator needs to undergo an airtightness test on its outer package to ensure that the package can effectively protect the internal crystal plate and electrodes, thereby ensuring the stability of its output frequency.

[0003] At present, there are two main methods for testing air tightness: the bubble method and the vacuum method. The bubble method is to immerse the crystal resonator in liquid and judge its air tightness by pressurizing it to observe whether bubbles are generated. However, this method has some disadvantages: first, the residual liquid on the surface of the crystal resonator needs to be handled after the test, which adds additional operation steps; second, if the air tightness of the crystal resonator is not good, the liquid may penetrate into the interior and cause damage to the device. Another method is the vacuum method, which is to place the crystal resonator in a vacuum environment and judge its air tightness by detecting gas leakage. Although this method will not have a negative impact on the device, its equipment is complex, the operation requirements are high, and the cost is relatively expensive.

[0004] Therefore, it is urgent to design a testing device for airtightness testing of crystal resonators that has no negative impact but retains simple operation and high cost performance, so as to meet the testing needs in the production of crystal resonators. Summary of the invention

[0005] The present invention provides a crystal resonator airtightness detection device, aiming to solve the defects of the prior art mentioned in the above background technology.

[0006] The technical solution is: a crystal resonator air tightness detection device, comprising: a frame box, wherein a sealed chamber is arranged in the frame box; A mounting plate fixedly connected to the frame box; A sealing door arranged on the mounting plate; A hydraulic press fixedly connected to the frame; A pressing block fixedly connected to the telescopic end of the hydraulic press; A piston plate is slidably connected to the frame box, the piston plate is arranged in a closed chamber, the pressing block will contact the piston plate to control its movement, and an elastic member is arranged between the piston plate and the frame box; A material discharge plate is arranged in the frame box, and the material discharge plate is arranged at the bottom of the space of the closed bin; And a detection butt joint is arranged in the frame box, and a screen display for the detection butt joint is arranged on the frame box.

[0007] As a preferred technical solution of the present invention, the sealing door is slidably connected to the mounting plate, and an elastic member is provided between the sealing door and the mounting plate; It also includes: a first control plate slidably connected to the frame box, and the first control plate is fixedly connected to the pressing block; A first wedge block is slidably connected to the mounting plate, the first control plate is in contact with the inclined surface of the first wedge block, and an elastic member is provided between the first wedge block and the mounting plate; And a second wedge block is fixedly connected to the sealing door, and the first wedge block is in contact with the inclined surface of the second wedge block.

[0008] As a preferred technical solution of the present invention, the detection joint is slidably connected in the frame box; It also includes: a second control plate slidably connected to the frame box, and the second control plate is fixedly connected to the pressing block; A third wedge block is slidably connected to the frame box, the second control plate is in contact with the inclined surface of the third wedge block, and an elastic member is provided between the third wedge block and the frame box; And a rotating frame rotatably connected in the frame box, the rotating frame is a telescopic structure, one end of the rotating frame is rotatably connected to the third wedge block, and the other end of the rotating frame is rotatably connected to the detection docking head.

[0009] As a preferred technical solution of the present invention, it also includes: a loading platform fixedly connected to the frame box, the loading platform leads to the closed warehouse; Turn the screw connected to the loading platform; A material moving frame is slidably connected to the loading platform, and the material moving frame is threadedly connected to the screw rod; And a first motor is fixedly connected to the loading platform, and the output end of the first motor is fixedly connected to the screw rod.

[0010] As a preferred technical solution of the present invention, the material moving rack is configured as an inverted L-shape. When the material moving rack is controlled to move to the endmost end of the screw, the far end of the material moving rack will push the crystal resonator into the closed bin.

[0011] As a preferred technical solution of the present invention, the unloading plate is rotatably connected in the frame box; It also includes: a second motor fixedly connected in the box, wherein the output end of the second motor is fixedly connected to the rotating shaft of the unloading plate; and a collecting frame fixedly connected to the lower part of the frame box, the collecting frame is located below the discharge plate, and two partitions are arranged in the collecting frame; The collecting frame is provided with two material taking openings, which respectively correspond to the two partitions leading to the collecting frame.

[0012] As a preferred technical solution of the present invention, it also includes: a limiting strip fixedly connected to the unloading plate.

[0013] As a preferred technical solution of the present invention, it also includes: a guide block fixedly connected in the frame box.

[0014] Beneficial effects: The present invention uses air pressure to affect the resistance of a crystal resonator with poor airtightness, so that when the present invention is used to judge the airtightness result, the result can be directly obtained intuitively through the change in resistance value. The use of the present invention does not have a negative impact, and makes the detection operation more convenient and more cost-effective. Therefore, compared with the prior art, the present invention has a significant technical improvement. The present invention uses a transmission component to control the automatic opening and closing of the sealing door and the automatic docking of the detection joint and the crystal resonator while controlling the movement of the pressing block, thereby further simplifying the operating steps of the present invention and improving the convenience of operation of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 It is a cross-sectional view of the connection structure between the pressing block and the piston plate in the frame box of the present invention.

[0017] Figure 3 It is a schematic diagram of the position structure of the crystal resonator in the closed chamber in the present invention.

[0018] Figure 4 It is a cross-sectional view of the connection structure of the pressing block, the first control panel and the sealing door in the frame box in the present invention.

[0019] Figure 5 This is a separation diagram of the connection structure between the first control panel and the sealing door in the present invention.

[0020] Figure 6 It is a cross-sectional view of the connection structure between the second control board and the detection docking head in the frame box in the present invention.

[0021] Figure 7 It is a schematic diagram of the connection structure between the second control board and the detection docking joint in the present invention.

[0022] Figure 8 It is a cross-sectional view of the connection structure between the loading platform and the material moving rack in the present invention.

[0023] Fig. 9 This is a separation diagram of the connection structure of the material moving rack in the present invention.

[0024] Fig.10 It is a cross-sectional view of the connection structure of the unloading plate in the frame box in the present invention.

[0025] Fig.11 It is a schematic diagram of the state after the unloading plate in the present invention is rotated.

[0026] Among them: 0-crystal resonator, 1-frame, 2-sealed bin, 3-mounting plate, 4-first guide rod, 5-sealing door, 6-hydraulic press, 7-pressing block, 8-second guide rod, 9-piston plate, 10-first spring, 11-discharging plate, 12-detection docking head, 13-first control board, 14-first connecting sleeve, 15-first wedge block, 16-second spring, 17-second wedge block, 18-third spring, 19-second control board, 20-second connecting sleeve, 21-third wedge block, 22-mounting shaft, 23-rotating frame, 24-fourth spring, 25-loading table, 26-screw, 27-material moving rack, 28-first motor, 29-synchronous belt group, 30-second motor, 31-limiting bar, 32-collection frame, 33-feeding port, 34-guide block. DETAILED DESCRIPTION

[0027] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments, but is not intended to limit the present invention.

[0028] Embodiment: A crystal resonator airtightness detection device, combined with Figure 1-Figure 3 As shown, it includes: a frame box 1, a sealed chamber 2 is arranged in the frame box 1, and the crystal resonator 0 is tested for air tightness in the sealed chamber 2; a mounting plate 3 fixedly mounted on the front side of the frame box 1; a first guide rod 4 fixedly mounted on both sides of the mounting plate 3; a sealing door 5 slidably mounted on the first guide rod 4, and the sealing door 5 moves up and down to control the opening and closing of the sealed chamber 2; a hydraulic press 6 fixedly mounted on the top of the frame box 1; a pressing block 7 fixedly mounted on the telescopic end of the hydraulic press 6, and the hydraulic press 6 controls the pressing block 7 to move up and down; a second guide rod 8 fixedly mounted in the frame box 1; a piston plate 9 slidably mounted on the second guide rod 8, and the piston plate 9 is arranged in the sealed chamber 2. The movement of the piston plate 9 will change the air pressure in the sealed chamber 2, and the pressing block 7 moves, it will contact the piston plate 9 and control it to move downward; a first spring 10 is sleeved on the second guide rod 8, and the two ends of the first spring 10 are fixedly installed with the piston plate 9 and the frame box 1 respectively, and the first spring 10 is used to move the piston plate 9 upward for resetting; a discharge plate 11 for placing the crystal resonator 0 is rotatably installed in the frame box 1, and the discharge plate 11 is set at the bottom of the space of the closed warehouse 2; a detection docking head 12 is slidably installed in the frame box 1, and the detection docking head 12 is set at the rear and lower part of the space of the closed warehouse 2. The detection docking head 12 is used to dock with the crystal resonator 0 and perform resistance detection on it. The screen display of the detection docking head 12 for displaying the detection resistance data is set on the front side of the frame box 1.

[0029] Put the crystal resonator 0 into the sealed chamber 2 and place it on the discharge plate 11, control the detection docking head 12 to move to contact and dock with the crystal resonator 0 placed on the discharge plate 11, then the detection docking head 12 can display the resistance data of the crystal resonator 0 on the screen of the detection docking head 12; move the sealing door 5 downward to close the sealed chamber 2, start the hydraulic press 6, control the pressing block 7 to move the piston plate 9 downward, the first spring 10 is stretched, and the piston plate 9 increases the air pressure in the sealed chamber 2 by compressing the gas in the sealed chamber 2. Assuming that the crystal resonator 0 If the airtightness of the package is good, the resistance of the crystal resonator 0 will be able to remain stable. If the airtightness of the package of the crystal resonator 0 is insufficient, the resistance of the crystal resonator 0 will change under the influence of the air pressure in the closed chamber 2. The airtightness of the crystal resonator 0 can be judged according to the change in data. Therefore, the use of this equipment can achieve simple operation without any negative impact. After the test is completed, the hydraulic press 6 moves the pressing block 7 upward, and the first spring 10 moves the piston plate 9 upward to reset. Finally, the crystal resonator 0 that has completed the test is taken away.

[0030] Combination Figure 1 , Figure 4 and Figure 5 As shown, it also includes: a first control plate 13 slidably mounted on the front side of the upper part of the frame box 1, the first control plate 13 is fixedly mounted on the pressing block 7; a first connecting sleeve 14 is fixedly mounted in the mounting plate 3; a first wedge block 15 slidably mounted on the first connecting sleeve 14, the first wedge block 15 moves forward and backward, and the first control plate 13 contacts the inclined surface of the first wedge block 15; a second spring 16 fixedly mounted between the first connecting sleeve 14 and the first wedge block 15, the second spring 16 is used to move the first wedge block 15 backward for reset; a second wedge block 17 fixedly mounted on the top of the sealing door 5, the first wedge block 15 contacts the inclined surface of the second wedge block 17; a third spring 18 sleeved on the first guide rod 4, the two ends of the third spring 18 are respectively fixedly mounted on the sealing door 5 and the frame box 1, and the third spring 18 is used to move the sealing door 5 upward for reset.

[0031] During the downward movement of the pressing block 7, the following two control stages will be carried out: in stage one, the pressing block 7 moves downward and squeezes the first wedge block 15 forward through the first control plate 13, the second spring 16 is compressed, and the first wedge block 15 moves forward to squeeze the second wedge block 17 downward, thereby controlling the sealing door 5 to move downward to close the airtight chamber 2, and the third spring 18 is stretched. At this time, the pressing block 7 has not moved to contact with the piston plate 9; in stage two, the pressing block 7 continues to move downward, and the first control plate 13 restricts the first wedge block 15 from moving backward to reset, thereby keeping the sealing door 5 tightly closed, and then the pressing block 7 contacts the piston plate 9 to control its movement, changing the air pressure in the airtight chamber 2 for airtightness detection. Therefore, the device realizes the automatic opening and closing of the sealing door 5 by using the cooperation of the first control plate 13, the first wedge block 15 and the second wedge block 17, thereby optimizing the operation steps of the device.

[0032] Combination Figure 1 , Figure 6 and Figure 7 As shown, it also includes: a second control plate 19 slidably mounted on the upper part of the frame 1, the second control plate 19 is fixedly mounted on the pressing block 7; a second connecting sleeve 20 is fixedly mounted on the frame 1; a third wedge block 21 slidably mounted on the second connecting sleeve 20, the third wedge block 21 moves forward and backward, the third wedge block 21 is arranged at the upper rear part of the space in the closed compartment 2, and the second control plate 19 contacts the inclined surface of the third wedge block 21; a mounting shaft 22 fixedly mounted on the rear part of the frame 1; a rotating frame 23 rotatably mounted on the mounting shaft 22, the rotating frame 23 is a retractable structure, the upper end of the rotating frame 23 is rotatably mounted on the third wedge block 21, and the lower end of the rotating frame 23 is rotatably mounted on the detection docking head 12; a fourth spring 24 fixedly mounted between the second connecting sleeve 20 and the third wedge block 21, the fourth spring 24 is used to move the third wedge block 21 forward for resetting.

[0033] During the downward movement of the pressing block 7, the pressing block 7 will move downward and squeeze the third wedge block 21 to move backward through the second control board 19, and the fourth spring 24 will be compressed, so that the rotating frame 23 is controlled to rotate. When the rotating frame 23 rotates, it can perform adaptive telescopic movement, and its lower end will push the detection docking head 12 to move forward to dock with the crystal resonator 0; then, the pressing block 7 continues to move downward, and the second control board 19 prevents the third wedge block 21 from moving forward and resetting, thereby maintaining the position of the detection docking head 12; after the detection is completed, the pressing block 7 moves upward and resets, the fourth spring 24 moves the third wedge block 21 forward and resets, and the rotating frame 23 is controlled to rotate in the opposite direction, and the detection docking head 12 is controlled to move backward and reset. Therefore, the device realizes the automatic docking between the detection docking head 12 and the crystal resonator 0 by using the cooperation between the second control board 19, the third wedge block 21 and the rotating frame 23, thereby optimizing the operation steps of the device.

[0034] Combination Figure 1 , Figure 8 and Fig. 9As shown, it also includes: a loading platform 25 fixedly installed on the front of the frame box 1, the loading platform 25 leads to the closed warehouse 2; two screws 26 rotatably installed on the loading platform 25; two moving racks 27 slidably installed on the loading platform 25, the moving racks 27 move back and forth, and the two moving racks 27 are respectively threadedly installed with the two screws 26, and the moving racks 27 will stably push the crystal resonator 0, and the moving racks 27 are set to an inverted L shape. When the moving rack 27 is controlled to move to the end of the screw 26, the far end of the moving rack 27 will push the crystal resonator 0 into the closed warehouse 2; a first motor 28 fixedly installed on the loading platform 25, and the output end of the first motor 28 is fixedly installed with one of the screws 26; a synchronous belt group 29 installed between the two screws 26 to make the two screws 26 rotate synchronously.

[0035] The crystal resonator 0 is placed on the loading platform 25 and on the rear side of the material moving rack 27, and the first motor 28 is started. The material moving rack 27 is controlled to move backward by the screw 26 to push the crystal resonator 0 into the sealed bin 2. Since the size of the crystal resonator 0 is small, the device uses the movable material moving rack 27 to assist the crystal resonator 0 in being loaded into the sealed bin 2, thereby simplifying and refining the operation steps and facilitating the operation of the device.

[0036] Combination Figure 1 , Figure 3 , Fig.10 and Fig.11 As shown, it also includes: a second motor 30 fixedly installed in the frame box 1, and the output end of the second motor 30 is fixedly installed with the rotating shaft of the discharge plate 11; a limit bar 31 fixedly installed on the discharge plate 11, and the limit bar 31 is used to limit the position of the crystal resonator 0 pushed into the closed bin 2; a collecting frame 32 fixedly installed at the lower part of the frame box 1, the collecting frame 32 is arranged below the discharge plate 11, and the collecting frame 32 is used to collect the crystal resonator 0, and the collecting frame 32 is provided with two left and right partitions. The discharge plate 11 rotates clockwise to guide the crystal resonator 0 into the partition on the right, and vice versa. Both sides of the collecting frame 32 are provided with material taking ports 33, and the two material taking ports 33 correspond to the two partitions leading to the collecting frame 32, so as to respectively take out the crystal resonator 0 with different detection results; a guide block 34 fixedly installed in the frame box 1, and the guide block 34 is used to adjust the position of the crystal resonator 0, and the guide block 34 is arranged on both sides of the front of the closed bin 2.

[0037] When the material transfer rack 27 pushes the crystal resonator 0 backward, the guide block 34 limits the left and right positions of the crystal resonator 0, while assisting the crystal resonator 0 to maintain a centered position, and the limit bar 31 is used to locate the rear position of the crystal resonator 0. Therefore, with the cooperation of the two, the crystal resonator 0 can be accurately positioned with the detection docking joint 12 to ensure the detection accuracy of the crystal resonator 0.

[0038] After the crystal resonator 0 is tested, the second motor 30 is controlled to rotate the unloading plate 11 clockwise / counterclockwise according to the test result, and the crystal resonator 0 is collected in two different partitions of the collection frame 32. Finally, the crystal resonators 0 with two different results in the two partitions of the collection frame 32 are processed respectively.

[0039] It is worth noting that in actual applications, a controller can be configured to control various electrical components to achieve automated operation.

[0040] It should be understood that the above description is only for exemplary purposes and is not meant to limit the present invention. Those skilled in the art will appreciate that variations of the present invention will be included within the scope of the claims herein.

Claims

1. A crystal resonator airtightness detection device, characterized in that: include: A frame box (1), wherein a sealed chamber (2) is arranged in the frame box (1), and the crystal resonator (0) is tested for air tightness in the sealed chamber (2); A mounting plate (3) fixedly connected to the frame box (1); A sealing door (5) disposed on the mounting plate (3), the sealing door (5) being used to open and close the sealed compartment (2); A hydraulic press (6) fixedly connected to the frame (1); A pressing block (7) fixedly connected to the telescopic end of the hydraulic press (6), wherein the hydraulic press (6) controls the movement of the pressing block (7); A piston plate (9) is slidably connected to the frame box (1), the piston plate (9) is arranged in the closed chamber (2), the pressing block (7) contacts the piston plate (9) and controls its movement to change the air pressure in the closed chamber (2), and an elastic member for resetting the piston plate (9) is provided between the piston plate (9) and the frame box (1); A material placement plate (11) is arranged in the frame box (1) and is used to place the crystal resonator (0), and the material placement plate (11) is arranged at the bottom of the space of the closed chamber (2); And a detection docking joint (12) arranged in the frame box (1) for detecting the resistance value of the crystal resonator (0), and a screen display of the detection docking joint (12) for displaying the detected resistance value data is arranged on the frame box (1).

2. A crystal resonator airtightness detection device according to claim 1, characterized in that: The sealing door (5) is slidably connected to the mounting plate (3), and an elastic member for resetting the sealing door (5) is provided between the sealing door (5) and the mounting plate (3); It also includes: a first control plate (13) slidably connected to the frame box (1), the first control plate (13) being fixedly connected to the pressing block (7); A first wedge block (15) is slidably connected to the mounting plate (3), the first control plate (13) is in contact with the inclined surface of the first wedge block (15), and an elastic member for resetting the first wedge block (15) is provided between the first wedge block (15) and the mounting plate (3); and a second wedge block (17) fixedly connected to the sealing door (5), wherein the first wedge block (15) and the second wedge block (17) have inclined surfaces in contact with each other, and through the cooperation between the first wedge block (15) and the second wedge block (17), the movement of the first control plate (13) can be converted into the movement of the sealing door (5).

3. A crystal resonator airtightness detection device according to claim 2, characterized in that: The detection butt joint (12) is slidably connected in the frame box (1); It also includes: a second control plate (19) slidably connected to the frame box (1), and the second control plate (19) is fixedly connected to the pressing block (7); A third wedge block (21) is slidably connected to the frame box (1), the second control plate (19) is in contact with the inclined surface of the third wedge block (21), and an elastic member for resetting the third wedge block (21) is provided between the third wedge block (21) and the frame box (1); and a rotating frame (23) rotatably connected to the frame box (1); the rotating frame (23) is a retractable structure; one end of the rotating frame (23) is rotatably connected to the third wedge block (21); the other end of the rotating frame (23) is rotatably connected to the detection docking head (12); through the cooperation of the third wedge block (21) and the rotating frame (23), the movement of the second control plate (19) can be converted into the movement of the detection docking head (12).

4. A crystal resonator airtightness detection device according to claim 3, characterized in that: Also includes: A loading platform (25) fixedly connected to the frame box (1), the loading platform (25) leading to the closed bin (2); Rotating a screw rod (26) connected to a loading platform (25); A material moving frame (27) is slidably connected to the loading platform (25), and the material moving frame (27) is threadedly connected to the screw rod (26); And a first motor (28) fixedly connected to the loading platform (25), wherein the output end of the first motor (28) is fixedly connected to the screw rod (26).

5. A crystal resonator airtightness detection device according to claim 4, characterized in that: The material moving rack (27) is arranged in an inverted L shape. When the material moving rack (27) is controlled to move to the endmost end of the screw rod (26), the far end of the material moving rack (27) will push the crystal resonator (0) into the sealed chamber (2).

6. A crystal resonator airtightness detection device according to claim 5, characterized in that: The unloading plate (11) is rotatably connected in the frame box (1); It also includes: a second motor (30) fixedly connected to the box, the output end of the second motor (30) being fixedly connected to the rotating shaft of the unloading plate (11); and a collection frame (32) fixedly connected to the lower part of the frame box (1) for collecting the crystal resonator (0), the collection frame (32) being located below the discharge plate (11), the collection frame (32) being provided with two partitions, and the discharge plate (11) being able to guide the crystal resonator (0) to different partitions of the collection frame (32) in different rotation directions; The collecting frame (32) is provided with two material taking openings (33), which respectively correspond to two partitions leading to the collecting frame (32).

7. A crystal resonator airtightness detection device according to claim 6, characterized in that: Also includes: A limit strip (31) is fixedly connected to the discharge plate (11), and the limit strip (31) is used to limit the position of the crystal resonator (0) pushed into the sealed bin (2).

8. The crystal resonator airtightness detection device according to claim 7, characterized in that: Also includes: A guide block (34) is fixedly connected to the frame box (1), and the guide block (34) is used to adjust the position of the crystal resonator (0).

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