Crystal welding positioning carrier

Abstract

The utility model discloses a crystal welding positioning carrier, including the base carrier and crystal carrier of combination and separation, be equipped with a plurality of positioning groove on the base carrier, and the positioning groove is used for positioning the pin on the base, be equipped with a plurality of first positioning hole and a plurality of second positioning hole on the crystal carrier, and the first positioning hole, second positioning hole and positioning groove are one to one correspondence, and the second positioning hole is close to the positioning groove, and the first positioning hole is used for positioning crystal, and the second positioning hole is used for positioning base, and the spacing is formed with the through groove between the first positioning hole and the second positioning hole, and the first positioning hole, the through groove and the second positioning hole are communicated in proper order, and the through groove is used for the base and crystal to stretch into, and the circumferential inner wall of second positioning hole is equipped with three protrusions, and the included angle between two adjacent protrusions is 120 degrees, when using, the protrusion abuts the circumferential outer wall surface of base, the radial direction positioning precision of the base of the utility model is better, avoids the deviation of base position, makes crystal and base welding precision height.

Description

Technical Field

[0001] This utility model relates to, specifically to, a crystal welding positioning carrier. Background Technology

[0002] A quartz crystal oscillator, also known as a quartz crystal resonator, is an electronic device that generates resonant frequencies and is widely used in various electronic products. A quartz crystal oscillator mainly consists of three parts: a base, a crystal, and a housing. The base has two pins arranged side-by-side. One end of the crystal is soldered to the base, and the housing is fitted over the base to seal the crystal inside.

[0003] Traditionally, a combined carrier is used to position the crystal and the base. This combined carrier consists of a separable base carrier and a crystal carrier. In use, the two pins on the base are first inserted into the positioning slots on the base carrier. Then, the crystal carrier is assembled onto the base carrier, and the crystal is placed into the positioning hole on the crystal carrier, so that one end of the crystal abuts against the base. Finally, the connection between the crystal and the base is welded. However, because traditional combined carriers have poor positioning accuracy in the radial direction of the base, the base's position deviates, resulting in low welding accuracy between the crystal and the base. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing a crystal welding positioning carrier that offers better radial positioning accuracy for the base, preventing base position deviations and resulting in high precision in crystal-base welding.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A crystal welding positioning carrier includes a base carrier and a crystal carrier that can be assembled and separated;

[0007] The base carrier is provided with a number of spaced positioning slots, which are used to position the pins on the base;

[0008] The crystal carrier is provided with a plurality of first positioning holes and a plurality of second positioning holes. The first positioning holes, the second positioning holes and the positioning grooves correspond one-to-one. The second positioning holes are close to the positioning grooves. The first positioning holes are used to position the crystals and the second positioning holes are used to position the bases. A through groove is formed between the first positioning holes and the second positioning holes with a distance between them. The first positioning holes, the through grooves and the second positioning holes are connected in sequence. The through grooves allow the bases and crystals to extend into them.

[0009] The second positioning hole has three radially inward protrusions on its circumferential inner wall. The included angle between two adjacent protrusions is 120 degrees. In use, the protrusions abut against the circumferential outer wall of the base.

[0010] By setting a first positioning hole and a second positioning hole on the crystal carrier, the first positioning hole, the second positioning hole, and the positioning groove correspond one-to-one. The second positioning hole is close to the positioning groove on the base carrier. A through groove is set between the first positioning hole and the second positioning hole, allowing the base and crystal to extend into the through groove. Three protrusions are set on the circumferential inner wall of the second positioning hole, with an included angle of 120 degrees between two adjacent protrusions. In use, the base extends into the through groove through the second positioning hole, and the three protrusions in the second positioning hole abut against the circumferential outer wall of the base, thereby improving the radial positioning accuracy of the base, avoiding deviation in the base position, and thus achieving high welding accuracy between the crystal and the base.

[0011] In one embodiment, each of the second positioning holes has a notch on one side, and both the through groove and the second positioning hole communicate with the notch. The notch allows the external pressure rod to move along the axial direction of the second positioning hole.

[0012] In one embodiment, the crystal carrier includes a detachably connected main body and a connector, the connector being disposed on one side of the main body, the first positioning hole being disposed between the main body and the connector, and the second positioning hole and the notch being disposed on the connector.

[0013] In one embodiment, the connector has a first plate portion and a second plate portion that are perpendicular to and connected to each other. The first plate portion is connected to the main body, the first positioning hole is disposed between the main body and the first plate portion, and the second positioning hole and the notch are both disposed on the second plate portion.

[0014] In one embodiment, a plurality of connecting blocks are arranged side by side between the first plate portion and the second plate portion, and at least one second positioning hole is provided between two adjacent connecting blocks, and the first plate portion, the second plate portion, and the two adjacent connecting blocks form the through groove.

[0015] In one embodiment, the first plate portion, the second plate portion, and all connecting blocks are integrally formed.

[0016] In one embodiment, the notch is aligned with the central axis of the second positioning hole, and the width b of the notch along the radial direction of the second positioning hole is less than the radius R of the second positioning hole.

[0017] In one embodiment, the edge of the second positioning hole away from the first positioning hole is provided with a first chamfer, and the end of the protrusion away from the first positioning hole is provided with a second chamfer.

[0018] In one embodiment, the crystal welding positioning carrier is a vertical crystal welding positioning carrier, and the first positioning hole extends vertically.

[0019] In one embodiment, the crystal welding positioning carrier is a horizontal crystal welding positioning carrier, and the first positioning hole extends horizontally.

[0020] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, by setting a first positioning hole and a second positioning hole on the crystal carrier, the first positioning hole, the second positioning hole and the positioning groove correspond one-to-one. The second positioning hole is close to the positioning groove on the base carrier. A through groove is set between the first positioning hole and the second positioning hole, allowing the base and crystal to extend into the through groove. Three protrusions are set on the circumferential inner wall of the second positioning hole, with an included angle of 120 degrees between two adjacent protrusions. In use, the base extends into the through groove through the second positioning hole, and the three protrusions in the second positioning hole abut against the circumferential outer wall of the base, thereby improving the radial positioning accuracy of the base, avoiding deviation in the base position, and thus making the welding accuracy between the crystal and the base high.

[0021] To more clearly illustrate the structural features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments: Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the assembly structure of the first embodiment of this utility model;

[0023] Figure 2 yes Figure 1 A schematic diagram of the decomposition process;

[0024] Figure 3 This is an exploded view of the crystal carrier according to the first embodiment of this utility model;

[0025] Figure 4 This is a schematic diagram of the connector structure according to the first embodiment of this utility model;

[0026] Figure 5 This is a bottom view of the connector according to the first embodiment of this utility model;

[0027] Figure 6 This is a bottom view of the base of the first embodiment of the present invention located in the second positioning hole;

[0028] Figure 7 This is a schematic diagram of the usage state of the first embodiment of this utility model;

[0029] Figure 8 yes Figure 7 A cross-sectional schematic diagram;

[0030] Figure 9 yes Figure 8 A schematic diagram showing the separation of the crystal carrier from the base carrier;

[0031] Figure 10 yes Figure 9 A magnified view of part A in the middle;

[0032] Figure 11 This is a schematic diagram of the connector structure according to the second embodiment of this utility model;

[0033] Figure 12 This is a schematic diagram of the connector structure according to the third embodiment of this utility model;

[0034] Figure 13 This is a schematic diagram of the assembly structure of the fourth embodiment of this utility model;

[0035] Figure 14 yes Figure 13 A schematic diagram of the decomposition process;

[0036] Figure 15 This is a cross-sectional schematic diagram of the fourth embodiment of this utility model in use.

[0037] Explanation of reference numerals in the attached diagram:

[0038] 10-Base carrier, 11-Positioning groove, 12-Spring piece, 13-Pin hole, 20-Crystal carrier, 201-Main body, 2011-Notch, 202-Connector, 2021-First plate, 2022-Second plate, 2023-Connecting block, 21-First positioning hole, 211-First inlet, 212-Second inlet, 213-Third inlet, 22-Second positioning hole, 221-First chamfer, 23-Through groove, 24-Protrusion, 241-Second chamfer, 25-Notch, 26-Pin, 30-Base, 31-Pin, 32-Crystal, 40-External pressure rod. Detailed Implementation

[0039] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the position or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] like Figure 1-10 As shown, this utility model discloses a crystal welding positioning carrier. In the first embodiment, the crystal welding positioning carrier includes a base carrier 10 and a crystal carrier 20 that can be assembled and separated.

[0042] The base carrier 10 is provided with a plurality of spaced positioning grooves 11. The positioning grooves 11 are used to position the pins 31 on the base 30. The extension direction of the pins 31 is parallel to the axial direction of the base 30. Specifically, two pins 31 are arranged side by side on the base 30. Each positioning groove 11 is provided with two spring pieces 12. The spring pieces 12 are used to clamp the pins 31. The positioning grooves 11 and the spring pieces 12 are existing technologies, and their specific structures will not be described in detail.

[0043] The crystal carrier 20 is provided with a plurality of first positioning holes 21 and a plurality of second positioning holes 22. The first positioning holes 21, the second positioning holes 22 and the positioning grooves 11 correspond one-to-one. The second positioning holes 22 are close to the positioning grooves 11. The first positioning holes 21 are used to position the crystal 32 and the second positioning holes 22 are used to position the base 30. A through groove 23 is formed between the first positioning holes 21 and the second positioning holes 22 with a distance maintained between them. The first positioning holes 21, the through groove 23 and the second positioning holes 22 are connected in sequence. The through groove 23 allows the base 30 and the crystal 32 to extend into it.

[0044] The second positioning hole 22 has three radially inward protrusions 24 on its circumferential inner wall. The included angle between two adjacent protrusions 24 is 120 degrees. In use, the protrusions 24 abut against the circumferential outer wall of the base 30 to restrict the radial movement of the base 30. The axial direction of the base 30 is parallel to the axial direction of the second positioning hole 22.

[0045] Each of the second positioning holes 22 has a notch 25 on one side. The through groove 23 and the second positioning hole 22 are both connected to the notch 25. The notch 25 allows the external pressure rod 40 to move along the axial direction of the second positioning hole 22. The external pressure rod 40 is mounted on an external welding device (not shown). In actual use, one end of the external pressure rod 40 extends into the through groove 23, and the external pressure rod 40 presses against the edge of the surface of the base 30 near the first positioning hole 21. The crystal 32 is welded to the base 30. Subsequently, when the crystal carrier 20 detaches from the base carrier 10 along the axial direction of the second positioning hole 22, the external pressure rod 40, the base 30, the crystal 32, and the base carrier 10 remain stationary. By providing a notch 25, when the crystal carrier 20 is separated from the base carrier 10, the notch 25 allows the external pressure rod 40 to move, preventing the external pressure rod 40 from colliding with the crystal carrier 20. At the same time, the external pressure rod 40 is used to press the base 30, so that the welded base 30 and crystal 32 remain on the base carrier 10.

[0046] The crystal carrier 20 includes a detachably connected main body 201 and a connector 202. The main body 201 and the connector 202 are detachably connected by screws, or they can be detachably connected by snap-fit. The connector 202 is located on one side of the main body 201. The first positioning hole 21 is located between the main body 201 and the connector 202. The second positioning hole 22 and the notch 25 are both located on the connector 202. By setting the crystal carrier 20, which is composed of the detachably connected main body 201 and the connector 202, the crystal carrier 20 is divided into two parts, which facilitates processing and manufacturing.

[0047] The connector 202 has a first plate portion 2021 and a second plate portion 2022 that are vertically connected. The first plate portion 2021 is connected to the main body 201. The first positioning hole 21 is provided between the main body 201 and the first plate portion 2021. Specifically, the first plate portion 2021 is a vertical plate and the second plate portion 2022 is a horizontal plate. The main body 201 has a plurality of notches 2011 on one side facing the first plate portion 2021. The notches 2011 penetrate both sides of the main body 201 along the axial direction of the second positioning hole 22. The notches 2011 and the side wall of the first plate portion 2021 form the first positioning hole 21. The second positioning hole 22 and the notch 25 are both provided on the second plate portion 2022.

[0048] A plurality of connecting blocks 2023 are arranged side by side between the first plate portion 2021 and the second plate portion 2022. The connecting blocks 2023 are connected to the first plate portion 2021 and the second plate portion 2022. At least one second positioning hole 22 is provided between two adjacent connecting blocks 2023. The first plate portion 2021, the second plate portion 2022 and the two adjacent connecting blocks 2023 form the through groove 23. For example, a second positioning hole 22 is provided between two adjacent connecting blocks 2023. By setting the connecting blocks 2023, the connecting blocks 2023 are connected to the first plate portion 2021 and the second plate portion 2022, thereby increasing the strength of the second plate portion 2022, avoiding deformation of the second plate portion 2022, and thus ensuring the positioning accuracy of the second positioning hole 22 on the base 30.

[0049] The first plate portion 2021, the second plate portion 2022, and all connecting blocks 2023 are integrally formed; by adopting an integral forming configuration, the connection between the first plate portion 2021, the second plate portion 2022, and the connecting blocks 2023 is stable.

[0050] Both ends of the main body 201 along its length are provided with pins 26, and both ends of the base carrier 10 are provided with pin holes 13. The pins 26 are inserted into the pin holes 13 so that the base carrier 10 and the crystal carrier 20 can be combined and separated. Both the pins 26 and the pin holes 13 are existing technologies.

[0051] The notch 25 is directly opposite the central axis of the second positioning hole 22. The width b of the notch 25 along the radial direction of the second positioning hole 22 is less than the radius R of the second positioning hole 22. The width b is 0.6mm-1.0mm, preferably 0.7mm-0.8mm.

[0052] Of the three protrusions 24, one of the protrusions 24 is directly opposite the notch 25.

[0053] The second positioning hole 22 has a first chamfer 221 at its edge away from the first positioning hole 21, and the protrusion 24 has a second chamfer 241 at its end away from the first positioning hole 21. The first chamfer 221 and the second chamfer 241 can be either a chamfer or a rounded corner, preferably both chamfers. By setting the first chamfer 221 and the second chamfer 241, the base 30 can smoothly extend into the second positioning hole 22 for positioning during use.

[0054] The crystal 32 welding positioning carrier is a vertical crystal 32 welding positioning carrier. The first positioning hole 21 extends vertically. The upper end of the first positioning hole 21 penetrates the upper surface of the crystal carrier 20 to form a first entrance 211. The first entrance 211 allows the crystal 32 to be placed into the first positioning hole 21 in an upright posture. The first entrance 211 is funnel-shaped and has a large opening width at the upper end.

[0055] like Figure 11 As shown, in the second embodiment, the difference from the first embodiment lies in the connector 202. Specifically, two second positioning holes 22 are provided between two adjacent connector blocks 2023.

[0056] like Figure 12 As shown, in the third embodiment, the difference from the first and second embodiments lies in the connector 202. Specifically, the two ends of the second plate portion 2022 in the length direction are connected to the first plate portion 2021, and the first plate portion 2021 and the second plate portion 2022 maintain a distance to form a single through groove 23.

[0057] like Figure 13-15 As shown, in the fourth embodiment, the difference from the first, second, and third embodiments is that the crystal 32 welding positioning carrier is a horizontal crystal 32 welding positioning carrier. The first positioning hole 21 extends horizontally, and the end of the first positioning hole 21 away from the second positioning hole 22 penetrates the side wall of the crystal carrier 20 to form a second inlet 212. The upper surface of the crystal carrier 20 is recessed with a third inlet 213, which communicates with the first positioning hole 21. The third inlet 213 is funnel-shaped, and the upper opening of the third inlet 213 is relatively wide. The third inlet 213 allows the crystal 32 to be placed into the first positioning hole 21 in a flat position. The second inlet 212 allows an external push rod to push the crystal 32 in the first positioning hole 21 toward the direction closer to the second positioning hole 22. Specifically, the third inlet 213 is located on the first plate portion 2021.

[0058] The method of using this utility model, taking the first embodiment as an example:

[0059] First, insert the pin 31 on the base 30 into the positioning groove 11. The lower surface of the base 30 abuts against the upper surface of the base carrier 10, and the spring piece 12 clamps the pin 31.

[0060] Then, the pin 26 on the crystal carrier 20 is inserted into the corresponding pin hole 13 on the base carrier 10, so that the base carrier 10 and the crystal carrier 20 are assembled into a combined carrier. At this time, the upper end of the base 30 passes through the second positioning hole 22 and extends into the through groove 23.

[0061] Next, the crystal 32 is placed into the first positioning hole 21 through the first inlet 211 in an upright position. The crystal 32 falls along the first positioning hole 21, and the lower end of the crystal 32 extends into the through groove 23 and abuts against the upper end of the base 30.

[0062] Then, hot air is blown into the channel 23 by the heating device for a period of time, so that the solder material between the base 30 and the crystal 32 melts and the crystal 32 is welded and fixed to the base 30 (the solder material was applied to the upper end of the base 30 in the previous process).

[0063] Finally, the external pressure rod 40 extends into the through groove 23 and abuts against the edge of the upper surface of the base 30, moving the crystal carrier 20 upward and separating it from the base carrier 10. The welded crystal 32 and the base 30 remain on the base carrier 10, and the base carrier 10 is then transferred to the next station.

[0064] In summary, this utility model provides a first positioning hole 21 and a second positioning hole 22 on the crystal carrier 20. The first positioning hole 21, the second positioning hole 22, and the positioning groove 11 correspond one-to-one. The second positioning hole 22 is close to the positioning groove 11 on the base carrier 10. A through groove 23 is provided between the first positioning hole 21 and the second positioning hole 22, allowing the base 30 and the crystal 32 to extend into it. Three protrusions 24 are provided on the circumferential inner wall of the second positioning hole 22, with an included angle of 120 degrees between two adjacent protrusions 24. In use, the base 30 extends into the through groove 23 through the second positioning hole 22, and the three protrusions 24 in the second positioning hole 22 abut against the circumferential outer wall of the base 30, thereby improving the radial positioning accuracy of the base 30, avoiding positional deviation of the base 30, and thus ensuring high welding accuracy between the crystal 32 and the base 30.

[0065] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Therefore, any modifications, equivalent substitutions, improvements, etc., made to the above embodiments based on the actual technical aspects of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A crystal welding positioning carrier, characterized in that, This includes modular and separable base carriers and crystal carriers; The base carrier is provided with a number of spaced positioning slots, which are used to position the pins on the base; The crystal carrier is provided with a plurality of first positioning holes and a plurality of second positioning holes. The first positioning holes, the second positioning holes and the positioning grooves correspond one-to-one. The second positioning holes are close to the positioning grooves. The first positioning holes are used to position the crystals and the second positioning holes are used to position the bases. A through groove is formed between the first positioning holes and the second positioning holes with a distance between them. The first positioning holes, the through grooves and the second positioning holes are connected in sequence. The through grooves allow the bases and crystals to extend into them. The second positioning hole has three radially inward protrusions on its circumferential inner wall. The included angle between two adjacent protrusions is 120 degrees. In use, the protrusions abut against the circumferential outer wall of the base.

2. The crystal welding positioning carrier according to claim 1, characterized in that, Each of the second positioning holes has a notch on one side, and the through groove and the second positioning hole are connected to the notch. The notch allows the external pressure rod to move along the axial direction of the second positioning hole.

3. The crystal welding positioning carrier according to claim 2, characterized in that, The crystal carrier includes a detachably connected main body and a connector. The connector is located on one side of the main body. The first positioning hole is located between the main body and the connector. The second positioning hole and the notch are both located on the connector.

4. The crystal welding positioning carrier according to claim 3, characterized in that, The connector has a first plate portion and a second plate portion that are perpendicular to each other and connected to each other. The first plate portion is connected to the main body. The first positioning hole is located between the main body and the first plate portion. The second positioning hole and the notch are both located on the second plate portion.

5. The crystal welding positioning carrier according to claim 4, characterized in that, A plurality of connecting blocks are arranged side by side between the first plate and the second plate, and at least one second positioning hole is provided between two adjacent connecting blocks. The first plate, the second plate, and the two adjacent connecting blocks form the through groove.

6. The crystal welding positioning carrier according to claim 5, characterized in that, The first plate, the second plate, and all connecting blocks are integrally formed.

7. The crystal welding positioning carrier according to claim 2, characterized in that, The notch is directly opposite the central axis of the second positioning hole, and the width b of the notch along the radial direction of the second positioning hole is less than the radius R of the second positioning hole.

8. The crystal welding positioning carrier according to claim 1, characterized in that, The second positioning hole has a first chamfer on its edge away from the first positioning hole, and the protrusion has a second chamfer on its end away from the first positioning hole.

9. The crystal welding positioning carrier according to any one of claims 1-8, characterized in that, The crystal welding positioning carrier is a vertical crystal welding positioning carrier, and the first positioning hole extends vertically.

10. The crystal welding positioning carrier according to any one of claims 1-8, characterized in that, The crystal welding positioning carrier is a horizontal crystal welding positioning carrier, and the first positioning hole extends horizontally.

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