A turntable positioning device for quartz crystal testing

Abstract

The present invention discloses a turntable positioning device for quartz crystal testing, comprising a base, a rotary motor, and a rotary platform connected to the output end of the rotary motor; a correction mechanism for correcting the quartz crystal is fixed on the rotary platform; the correction mechanism comprises a first clamping member fixed on the rotary platform and a second clamping member slidably connected to the rotary platform; a slot for placing the quartz crystal is provided between the first clamping member and the second clamping member; a pull rod is fixed on the second clamping member; a movable hole penetrating the upper and lower surfaces is provided on the rotary platform; a cam guide seat is fixedly mounted on the upper surface of the base; one end of the pull rod passes through the movable hole and is in rolling connection with the top of the cam guide seat; the second clamping member is movably connected to the movable hole via the pull rod. The present invention realizes the opening and closing of the slot by sliding the second clamping member, thereby achieving clamping and correction of the quartz crystal; the present invention has a simple structure, is easy to operate, and greatly improves work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of quartz crystal testing, in particular to a turntable positioning device for quartz crystal testing. Background Art

[0002] In existing technologies, when testing the performance of quartz crystals, the general test positioning is carried out in a test slot. The size of the test slot is often fixed. To facilitate the insertion and removal of the quartz crystal, the test slot used to place the quartz crystal has a relatively large tolerance. Therefore, during general testing, the error will fluctuate within a large tolerance range.

[0003] As the market's requirements for the appearance of quartz crystals are getting smaller and smaller, the requirements for the positioning accuracy of equipment are getting higher and higher, and the speed is getting faster and faster, when the tolerance range of the test slot hole is too large, it is difficult for the needle tip of the test probe to quickly and accurately align with the quartz crystal and effectively contact it. If the needle tip of the test probe and the quartz crystal cannot be accurately aligned, it will lead to the inability to accurately test the various performance parameters of the quartz crystal, and it is also impossible to accurately judge whether the quartz crystal meets the specified standards; secondly, as the requirements for the appearance of quartz crystals are getting smaller and smaller, it is becoming more and more difficult to match the quartz crystal with the test slot hole and the metal contacts. During operation, the quartz crystal often tilts in the limit groove, which greatly affects the operation efficiency. Summary of the Invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a turntable positioning device for quartz crystal testing to solve the technical problem of inaccurate quartz crystal testing caused by excessive tolerance of the test slots for placing quartz crystals.

[0005] The object of the present invention is achieved through the following technical solutions:

[0006] A turntable positioning device for quartz crystal testing includes a base, a rotating motor and a rotating platform connected to the output end of the rotating motor, the rotating motor is placed on the base, and a correction mechanism for correcting the quartz crystal is fixed to the rotating platform. The correction mechanism includes a first clamping member fixed on the rotating platform and a second clamping member slidably connected to the rotating platform. A slot for placing the quartz crystal is provided between the first clamping member and the second clamping member, a pull rod is fixed on the second clamping member, and a movable hole passing through the upper and lower surfaces is provided on the rotating platform. A cam guide seat is fixedly installed on the upper surface of the base, one end of the pull rod passes through the movable hole and is rollingly connected to the top of the cam guide seat, and the second clamping member is movably connected to the movable hole through the pull rod.

[0007] In the above invention, further, the correction mechanism also includes a limit block fixed on the rotating platform, and the limit block and the second clamping member are both provided with fixing rods, and the fixing rods are connected by springs.

[0008] In the above invention, further, the second clamping member is provided with a limiting bolt, one end of which abuts against the limiting block.

[0009] In the above invention, further, a slide groove is provided at the bottom of the second clamping member, a slider matching the slide groove is fixed on the rotating platform, and the second clamping member is slidably connected to the rotating platform through the cooperation between the slide groove and the slider.

[0010] In the above invention, further, a bearing is provided at the bottom of the pull rod fixed on the second clamping member, a bump is fixed at the top of the cam guide seat, and the pull rod is rollingly connected to the bump through the bearing.

[0011] In the above invention, further, the first clamping member and the second clamping member are detachably fixed with a first clamping plate and a second clamping plate respectively, and the first clamping plate and the second clamping plate are provided with serrations on opposite sides, and a slot for placing a quartz crystal is formed between the serrations.

[0012] In the above invention, further, the first clamping member is provided with a negative pressure hole penetrating the left and right surfaces, and the first clamping member is also provided with an air vent connected to the card slot, and the air vent is connected to the negative pressure hole.

[0013] In the above invention, further, a rotary joint is connected to the rotating platform through a connecting flange, an intermediate connecting column is provided inside the rotary joint, a negative pressure exhaust hole is provided inside the intermediate connecting column, and the negative pressure exhaust hole is connected to the negative pressure hole on the first clamping member through a connecting pipe.

[0014] In the above invention, further, a filter cup is fixed on the rotating platform, and the number of the filter cups is twice that of the correction mechanism. The negative pressure exhaust hole is connected to the inlet end of the filter cup through a connecting pipe, and the outlet end of the filter cup is connected to the negative pressure hole through a connecting pipe.

[0015] In the above invention, further, the rotating platform is a 12-station turntable.

[0016] The beneficial effects of the present invention are:

[0017] 1. The present invention provides a correction mechanism for placing and correcting quartz crystals on a rotating platform. The second clamping member of the correction mechanism is slidably connected to the rotating platform, and the rotating platform is driven to rotate by the rotation of the motor. When the test station reaches a fixed position, the bottom of the pull rod is rollingly connected to the top of the cam guide seat, so that the top of the cam guide seat pushes open the second clamping member, opens the correction mechanism, puts the product in, and then rotates the motor. Due to the action of centrifugal force during the rotation, the second clamping member slides to close, and the quartz crystal is matched with the slot of the card slot, thereby realizing the clamping correction of the quartz crystal.

[0018] 2. Since the card slot for placing the quartz crystal can be opened and closed as the second clamping member slides, there is no problem of unstable placement caused by large tolerance of the card slot, and the tolerance is reduced, so that the test probe can be quickly and accurately aligned with the quartz crystal to be tested. The present invention has a simple structure, is easy to operate, and greatly improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0021] Figure 3 It is a partial enlarged schematic diagram of A in the present invention;

[0022] Figure 4 This is a schematic diagram of the closed structure of the correction mechanism of the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the correction mechanism of the present invention;

[0024] Figure 6 It is a schematic diagram of the partially disassembled structure of the correction mechanism of the present invention;

[0025] Figure 7 This is a schematic structural diagram of the correction mechanism of the present invention from another perspective;

[0026] In the figure, 1-base, 2-rotating motor, 3-rotating platform, 4-correction mechanism, 41-first clamping member, 42-second clamping member, 43-pull rod, 431-bearing, 44-limiting block, 45-fixing rod, 46-spring, 47-limiting bolt, 5-slot, 6-movable hole, 7-cam guide seat, 71-bump, 8-slide groove, 9-slider, 10-first splint, 11-second splint, 12-negative pressure hole, 13-air vent, 14-rotating joint, 15-connecting flange, 16-middle connecting column, 161-negative pressure exhaust hole, 17-filter cup. DETAILED DESCRIPTION

[0027] The following describes the embodiments of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. The details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other unless they conflict.

[0028] Example:

[0029] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0030] Please see the attached Figure 1-5 As shown, a turntable positioning device for quartz crystal testing includes a base 1, a rotating motor 2 and a rotating platform 3 connected to the output end of the rotating motor 2, the rotating motor 2 is placed on the base 1, and the rotating platform 3 is driven to rotate when the rotating motor 2 rotates, and a correction mechanism 4 for correcting the quartz crystal is fixed on the rotating platform 3, and the correction mechanism 4 includes a first clamping member 41 fixed on the rotating platform 3 and a second clamping member 42 slidably connected to the rotating platform 3, a slot 5 for placing the quartz crystal is provided between the first clamping member 41 and the second clamping member 42, a pull rod 43 is fixed on the second clamping member 42, and a movable hole 6 is provided on the rotating platform 3 that passes through its upper and lower surfaces, a cam guide seat 7 is fixedly installed on the upper surface of the base 1, the base 1 and the cam guide seat 7 are both fixed and cannot rotate, one end of the pull rod 43 passes through the movable hole 6 and is rollingly connected to the top of the cam guide seat 7, and the second clamping member 42 is movably connected to the movable hole 6 through the pull rod 43. Specifically, as the rotary motor 2 rotates and drives the rotating platform 3, the second clamping member 42, due to its sliding connection with the rotating platform 3, continuously opens and closes the slot 5 for the quartz crystal, thereby clamping and correcting the quartz crystal. During rotation, the test probe passes over the slot 5 on the correction mechanism 4, thereby testing the quartz crystal in the slot 5. The test probe is a component installed on other equipment and is therefore not shown in the drawings of this invention.

[0031] The number of cam guide rail seats 7 fixed on the base 1 is used according to needs. When multiple workstations are required to test the quartz crystal, 2-12 cam guide rail seats 7 can be fixed on the base 1. Only 5 cam guide rail seats 7 are shown in the figure. When multiple cam guide rail seats 7 are not needed, the excess cam guide rail seats 7 can be removed from the base 1.

[0032] In the above embodiments, preferably, please refer to the attached Figure 4 As shown, the correction mechanism 4 further includes a limit block 44 fixed to the rotating platform 3, and a fixing rod 45 is provided on each of the limit block 44 and the second clamping member 42, and the fixing rods 45 are connected by a spring 46. Specifically, the limit block 44 is provided with a fixing rod 45, and the second clamping member 42 is also provided with a fixing rod 45, and the two fixing rods 45 are connected by a spring 46. Therefore, the first clamping member 41 and the second clamping member 42 are also connected by the spring 46. When the rotating platform 3 is rotating, the second clamping member 42 is in a closed state with the first clamping member 41 due to the action of centrifugal force. At this time, the card slot 5 is closed and the slot position is small. When the correction mechanism 4 rotates to the position corresponding to the cam guide seat 7, one end of the pull rod 43 on the second clamping member 42 rolls in contact with the top of the cam guide seat 7, causing the pull rod 43 to pull the second clamping member 42 toward the center of the rotating platform 3 to slide, thereby making the second clamping member 42 and the first clamping member 41 in an open state. At this time, the spring 46 is in a stretched state, and a quartz crystal can be placed there; the correction mechanism 4 continues to rotate, and when it rotates away from the position corresponding to the cam guide seat 7, one end of the pull rod 43 is no longer in rolling connection with the top of the cam guide seat 7. At this time, under the action of centrifugal force and the elastic force of the spring 46, the second clamping member 42 slides toward the outer extension of the rotating platform 3, and then the slot 5 gradually closes and the slot position becomes smaller, thereby clamping and correcting the quartz crystal placed in the slot 5. The spring 46 provided between the fixing rods 45 can speed up the closing time of the card slot 5 and timely clamp and correct the quartz crystal in the card slot 5. Through this device, the present invention can improve the positioning accuracy of the card slot 5 in the prior art from ±0.075mm to the current positioning accuracy of ±0.02mm.

[0033] In the above embodiment, preferably, a limiting bolt 47 is further provided on the second clamping member 42, one end of which abuts against the limiting block 44. Specifically, the limiting bolt 47 can define the gap between the first clamping member 41 and the second clamping member 42, that is, adjust the size of the slot when the slot 5 is closed. When the rotating platform 3 rotates, the second clamping member 42 slides toward the extension of the rotating platform 3. When one end of the limiting bolt 47 abuts against the limiting block 44, the second clamping member 42 stops sliding.

[0034] In the above embodiments, preferably, please refer to the attached Figure 7As shown, a chute 8 is provided at the bottom of the second clamping member 42, and a slider 9 is fixed to the rotating platform 3 to match the chute 8. The second clamping member 42 is slidably connected to the rotating platform 3 through the cooperation between the chute 8 and the slider 9. The provision of the chute 8 and the slider 9 facilitates the movement of the second clamping member 42, thereby achieving rapid opening and closing of the card slot 5 while preventing wear on the bottom of the second clamping member 42, thereby extending the service life of the device.

[0035] In the above embodiments, preferably, please refer to the attached Figure 3 As shown, a bearing 431 is provided at the bottom of the pull rod 43 fixed on the second clamping member 42, and a protrusion 71 is fixed at the top of the cam guide seat 7. The pull rod 43 is connected to the protrusion 71 in a rolling manner through the bearing 431. Specifically, when the correction mechanism 4 rotates to the position corresponding to the cam guide seat 7, the bearing 431 at the bottom of the pull rod 43 will abut against the protrusion 71. Since the bearing 431 is cylindrical and rotatable, the bearing 431 rolls past the side of the protrusion 71. Due to the abutment between the protrusion 71 and the bearing 431, the bearing 431 is subjected to a force from the protrusion 71 toward the center of the rotating platform 3, thereby causing the pull rod 43 to move inside the movable hole 6, thereby driving the second clamping member 42 to slide, as shown in the attached figure. Figure 3 The rolling connection between the bearing 431 and the protrusion 71 can more conveniently and quickly move the second clamping member 42 to open the slot 5, which has a simple structure and is easy to operate.

[0036] In the above embodiment, preferably, as shown in the attached Figure 6 As shown, the first clamping member 41 and the second clamping member 42 are respectively detachably secured with a first clamping plate 10 and a second clamping plate 11. The first clamping plate 10 and the second clamping plate 11 are provided with serrations on the opposing sides thereof, and a slot 5 for receiving a quartz crystal is formed between the serrations. Specifically, because quartz crystals vary in size and shape, to accommodate a wider range of quartz crystals and improve device utilization, clamping plates of varying sizes can be placed on the first clamping member 41 and the second clamping member 42. When replacement is necessary, the clamping plates can be detachably secured to the first clamping member 41 and the second clamping member 42 using nuts and bolts, and the quartz crystal can then be placed in the slot 5.

[0037] In the above embodiment, preferably, the first clamping member 41 is provided with a negative pressure hole 12 passing through the left and right surfaces, and the first clamping member 41 is also provided with an air vent 13 connected to the slot 5, the air vent 13 is connected to the negative pressure hole 12, and the rotating platform 3 is connected to a rotary joint 14 through a connecting flange 15, and an intermediate connecting column 16 is provided inside the rotary joint 14, and a negative pressure exhaust hole 161 is provided inside the intermediate connecting column 16, and the negative pressure exhaust hole 161 is connected to the negative pressure hole 12 on the first clamping member 41 through a connecting pipe (the connecting pipe is not shown in the accompanying drawings). Specifically, the negative pressure generating device is connected to the middle connecting column 16, forming negative pressure and exhausting the air inside the negative pressure hole 12 through the negative pressure exhaust hole 161 in the middle connecting column 16 and the connecting pipe. Because the negative pressure hole 12 is connected to the air vent 13, and the air vent 13 is connected to the card slot 5, when negative pressure is generated, the quartz crystal placed in the card slot 5 is automatically reset due to the negative pressure generated in the air vent 13 and is tightly attached to the card slot 5. It will not shake or roll, which is beneficial to the correction of the quartz crystal.

[0038] In the above embodiment, preferably, filter cups 17 are fixed to the rotating platform 3, and the number of the filter cups 17 is twice that of the correction mechanism 4. The negative pressure exhaust hole 161 is connected to the inlet end of the filter cup 17 through a connecting tube, and the outlet end of the filter cup 17 is connected to the negative pressure hole 12 through a connecting tube. Specifically, the filter cup 17 can filter the air in the connecting tube when the negative pressure is drawn, preventing particles and other impurities in the air from clogging the connecting tube, thereby reducing the negative pressure effect and causing the quartz crystal to be improperly corrected. The number of filter cups 17 is set to twice that of the correction mechanism 4 because the negative pressure hole 12 on the first clamping member 41 passes through the left and right side surfaces of the first clamping member 41. Therefore, the negative pressure holes 12 on the left and right side surfaces need to be connected to the filter cups 17 through the connecting tube. The purpose of this setting is to increase the negative pressure effect and ensure that the quartz crystal is firmly adsorbed in the card slot 5.

[0039] In the above embodiment, preferably, the rotating platform 3 is a 12-station turntable. Specifically, one correction mechanism 4 is one station, and 12 correction mechanisms 4 can be set on the rotating platform 3. In the prior art, most turntables have 6 or 8 stations, which may not be sufficient in some cases. Therefore, the present invention provides a 12-station rotating platform 3 to improve work efficiency.

[0040] Specific working process:

[0041] The cam guide seat 7 to be used is fixed on the base 1. The number of cam guide seats 7 is determined according to needs. The correction mechanism 4 to be used is connected to the outlet end of the filter cup 17 through the connecting pipe. The inlet end of the filter cup 17 is connected to the negative pressure exhaust hole 161 at the bottom of the intermediate connecting column 16 through the connecting pipe. Then start the rotary motor 2, which drives the rotary platform 3 to rotate. When the correction mechanism 4 on the rotary platform 3 rotates to the position corresponding to the cam guide seat 7, the bearing 431 at the bottom of the pull rod 43 is rolled and connected with the protrusion 71 on the cam guide seat 7. , the bearing 431 will abut against the protrusion 71, and the bearing 431 is subjected to force to make the pull rod 43 move in the movable hole 6, and then drive the second clamping member 42 to slide toward the center of the rotating platform 3, widening the distance between the first clamping member 41 and the second clamping member 42, thereby opening the slot 5, and the quartz crystal can be placed at this time. Because the quartz crystal is small and has different shapes, the quartz crystal placed in the slot 5 is disordered; but at this time, the negative pressure generating device can be turned on, and the negative pressure generated by the negative pressure generating device on the air vent 13 and the negative pressure hole 12 causes the quartz crystal to be adsorbed in the corresponding slot 5.

[0042] Correction mechanism 4 continues to rotate. When correction mechanism 4 moves away from the position corresponding to cam guide seat 7, bearing 431 is no longer in rolling connection with protrusion 71. At this time, under the action of centrifugal force and the elastic force of spring 46, second clamping member 42 slides toward the extension of rotating platform 3, and then slot 5 gradually closes and the slot becomes smaller, clamping and correcting the quartz crystal placed in slot 5, so that slot 5 and quartz crystal fit tightly. Rotating platform 3 continues to rotate. After correction mechanism 4 corrects the quartz crystal multiple times, the quartz crystal can be tested with a test probe. Because the quartz crystal is firmly placed in slot 5 after correction, testing the corrected quartz crystal with a test probe now provides accurate test results with minimal error.

[0043] The above-described embodiments merely represent specific implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, and all such variations and improvements fall within the scope of protection of the present invention.

Claims

1. A turntable positioning device for quartz crystal testing, characterized in that: The invention comprises a base (1), a rotary motor (2) and a rotary platform (3) connected to the output end of the rotary motor (2), wherein the rotary motor (2) is placed on the base (1), and a correction mechanism (4) for correcting a quartz crystal is fixed on the rotary platform (3), wherein the correction mechanism (4) comprises a first clamping member (41) fixed on the rotary platform (3) and a second clamping member (42) slidably connected to the rotary platform (3), a slot (5) for placing a quartz crystal is provided between the first clamping member (41) and the second clamping member (42), a pull rod (43) is fixed on the second clamping member (42), and a movable hole (6) penetrating the upper and lower surfaces is provided on the rotary platform (3), a cam guide seat (7) is fixedly installed on the upper surface of the base (1), one end of the pull rod (43) passes through the movable hole (6) and is rollingly connected to the top of the cam guide seat (7), and the second clamping member (42) is movably connected to the movable hole (6) through the pull rod (43).

2. A turntable positioning device for quartz crystal testing according to claim 1, characterized in that: The correction mechanism (4) further comprises a limit block (44) fixed on the rotating platform (3), and both the limit block (44) and the second clamping member (42) are provided with a fixing rod (45), and the fixing rods (45) are connected via a spring (46).

3. A turntable positioning device for quartz crystal testing according to claim 2, characterized in that: The second clamping member (42) is further provided with a limiting bolt (47), one end of which abuts against the limiting block (44).

4. A turntable positioning device for quartz crystal testing according to claim 3, characterized in that: A sliding groove (8) is provided at the bottom of the second clamping member (42), and a slider (9) matching the sliding groove (8) is fixed on the rotating platform (3). The second clamping member (42) is slidably connected to the rotating platform (3) through the cooperation between the sliding groove (8) and the slider (9).

5. The turntable positioning device for quartz crystal testing according to claim 4, characterized in that: A bearing (431) is provided at the bottom of the pull rod (43) fixed on the second clamping member (42), a cam (71) is fixed at the top of the cam guide seat (7), and the pull rod (43) is rollingly connected to the cam (71) via the bearing (431).

6. The turntable positioning device for quartz crystal testing according to claim 5, characterized in that: A first clamping plate (10) and a second clamping plate (11) are detachably fixed to the first clamping member (41) and the second clamping member (42), respectively. The first clamping plate (10) and the second clamping plate (11) are provided with saw teeth on opposite sides thereof, and a slot (5) for placing a quartz crystal is formed between the saw teeth.

7. The turntable positioning device for quartz crystal testing according to claim 6, characterized in that: The first clamping member (41) is provided with a negative pressure hole (12) penetrating the left and right surfaces. The first clamping member (41) is also provided with an air vent (13) communicating with the card slot (5). The air vent (13) is communicated with the negative pressure hole (12).

8. The turntable positioning device for quartz crystal testing according to claim 7, characterized in that: The rotating platform (3) is connected to a rotating joint (14) via a connecting flange (15); an intermediate connecting column (16) is provided inside the rotating joint (14); a negative pressure exhaust hole (161) is provided inside the intermediate connecting column (16); the negative pressure exhaust hole (161) is communicated with the negative pressure hole (12) on the first clamping member (41) via a connecting pipe.

9. The turntable positioning device for quartz crystal testing according to claim 8, characterized in that: A filter cup (17) is fixed on the rotating platform (3), and the number of the filter cups (17) is twice that of the correction mechanism (4). The negative pressure suction hole (161) is connected to the inlet end of the filter cup (17) through a connecting pipe, and the outlet end of the filter cup (17) is connected to the negative pressure hole (12) through a connecting pipe.

10. The turntable positioning device for quartz crystal testing according to claim 1, characterized in that: The rotating platform (3) is a 12-station turntable.

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