A manufacturing method of a surface mount crystal oscillator

Abstract

The present invention relates to the technical field of manufacturing surface mount crystal oscillators, and specifically to a manufacturing method of surface mount crystal oscillators, including an assembly unit and a welding unit. The present invention uses a conveyor belt composed of a toothed chain belt one and a toothed chain belt two, and the cooperation of a micro assembly line one and a micro assembly line two to evenly place and convey a crystal holder, a metal shell, and a crystal with pins. By using the vertical distance between the micro assembly line two and the toothed chain belt one, the pins are first aligned and connected with the holes on the crystal holder during the downward movement, and then under the limit of two points, the crystal with pins is always aligned and connected with the crystal holder to protect the pins from being bent by external forces. During the whole process, each alignment connection and ejection are controlled by the same drive, ensuring that each encapsulated crystal oscillator is ejected with the next alignment connection, reducing the number of drives and lowering the processing cost of the equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of the production of surface mount crystal oscillators, and specifically to a method for manufacturing a surface mount crystal oscillator. Background Art

[0002] Surface mount crystal oscillators are one of the commonly used components in modern electronic devices, used to generate stable clock signals. Its main manufacturing processes include: selection and cutting of crystal materials, polishing of both sides of the crystal, electrode coating on both sides of the crystal, frequency tuning, packaging, aging test and parameter detection, and packaging and shipping. Among them, the packaging determines the service life and usage effect of the surface mount crystal oscillator.

[0003] The packaging process mainly involves fixing the crystal with pins to the crystal holder, and then fixing the crystal holder to the metal housing. During the packaging process, since the pins on the crystal are extremely vulnerable to being bent by external forces, the pins on the surface mount crystal oscillator after packaging are bent. When the surface mount crystal oscillator is welded to the circuit board, the bent pins need to be adjusted. During the adjustment process, the insulation layer between the pins and the crystal holder is prone to damage, resulting in the surface mount crystal oscillator being unusable and causing losses. If the surface mount crystal oscillator is replaced, the welding efficiency between the surface mount crystal oscillator and the circuit board is reduced. Summary of the Invention

[0004] In view of the above problems, the embodiments of the present application provide a method for manufacturing a surface mount crystal oscillator to solve the technical problem that in the related art, the pins are bent by force during the packaging process, resulting in the subsequent unusability of the surface mount crystal oscillator. To achieve the above object, the embodiments of the present application provide the following technical solutions.

[0005] A method for manufacturing a surface mount crystal oscillator according to an embodiment of the present application includes the following steps: S1. Cutting and polishing: cutting a quartz crystal into a rectangular thin sheet and polishing its upper and lower surfaces.

[0006] S2. Silver plating and adjustment: plating a layer of silver on the upper and lower planes of the polished crystal through sputtering technology to form electrodes, and adjusting the thickness of the electrodes or the size of the crystal to accurately tune the frequency of the crystal oscillator to meet the design requirements.

[0007] S3. Encapsulating the crystal: placing the processed crystal on a pre-prepared crystal holder containing an insulator, docking and packaging the metal housing with the crystal holder, fixing the electrode leads, and being in a vacuum state during the packaging process.

[0008] S4. Testing and shipping: after the packaging is completed, testing the crystal oscillator, and performing packaging and shipping after meeting the requirements of the product specification.

[0009] Wherein step S3 is completed by using a chip crystal oscillator manufacturing device, the manufacturing device includes an assembly unit and a welding unit, the welding unit is arranged on the assembly unit for welding the crystal with pins, the crystal seat and the metal shell.

[0010] The assembly unit includes a workbench, a sprocket wheel 1 is symmetrically connected to the front of the workbench for rotation, the sprocket wheels 1 are connected to the two sprocket wheels 2 through a toothed chain belt 1 for common transmission, the two toothed chain belts 2 are symmetrically arranged on the front and back sides of the toothed chain belt 1, a motor 1 is fixedly installed on the workbench through a motor seat, the output shaft of the motor 1 is fixedly connected to the sprocket wheel 1 on the left side through a coupling, the upper end of the workbench and located above the toothed chain belt 1 are fixedly connected to the micro-assembly line 1 and the micro-assembly line 2 from top to bottom, the upper end of the rear side of the workbench is fixedly installed with a motor 2 through a motor seat, and the output shaft of the motor 2 is connected to the A lifting frame 1 is fixedly installed through a coupling, a lifting frame 2 is fixedly installed on the right end of the lifting frame 1, a rotating frame is arranged at a lower end of the lifting frame, and a driving frame is arranged at the lower end of the rotating frame. In an initial state, a pushing frame 1 is symmetrically fixedly installed on the left and right ends of the outer end of the rotating frame, a pushing frame 2 is symmetrically fixedly installed on the front and back ends of the outer end of the rotating frame, and a material ejecting frame is fixedly installed on the lifting frame 2; the welding unit includes an automatic welding machine 1, an automatic welding machine 1 is evenly fixedly installed on the pushing frame 2, and an automatic welding machine 2 is evenly fixedly installed on the pushing frame 1, and the manufacturing equipment is assembled in a vacuum machine for use.

[0011] According to an embodiment of the present invention, the toothed chain belt 1 is symmetrically provided with an annular groove 1 front to back, a cylindrical spring 1 is evenly fixedly installed in the annular groove 1 along its circumference, a limiting block 1 is fixedly installed at the end of the cylindrical spring 1, an arc groove 1 is provided at the end of the limiting block 1 away from the cylindrical spring 1, a semi-cylindrical groove 1 is provided at the lower end of the arc groove, and an annular groove 2 is provided at the end of the toothed chain belt 2 toward the toothed chain belt 1, a cylindrical spring 2 is evenly fixedly installed in the annular groove 2, a limiting block 2 is fixedly installed at the end of the cylindrical spring 2, an arc groove 2 is provided at the end of the limiting block 2 away from the cylindrical spring 2, a semi-cylindrical groove 2 is provided at the lower end of the arc groove 2, and the semi-cylindrical groove 1 corresponds to the semi-cylindrical groove 2.

[0012] According to an embodiment of the present invention, the micro-assembly line is provided with double round-head holes evenly opened along its linear direction, and an alignment groove is symmetrically opened at the inner end of the double round-head hole. A support plate is rotatably connected to the alignment groove through a pin shaft, and a torsion spring is sleeved on the pin shaft, one end of the torsion spring is fixedly connected to the support plate, and the other end of the torsion spring is fixedly connected to the inner wall of the alignment groove.

[0013] According to an embodiment of the present invention, an anti-interference group is evenly arranged along the linear direction of the second micro-assembly line, and a positioning group is arranged on the second micro-assembly line and between the anti-interference groups. The anti-interference group is composed of a plurality of evenly arranged double round-head holes, and the positioning group is composed of a plurality of evenly arranged Chinese-shaped receiving grooves. The number of double round-head holes in one anti-interference group is the same as the number of receiving grooves in one positioning group. Fixed springs are symmetrically and evenly fixedly installed on the left and right sides of the receiving grooves, and a convex-shaped moving block is commonly fixedly installed on the upper ends of the fixed springs. A limiting groove is provided in the middle of the moving block, and a limiting plate is symmetrically connected to the limiting groove by a pin shaft. The limiting plate cooperates with a crystal with pins, and a torsion spring is sleeved on the pin shaft. One end of the torsion spring is fixedly connected to the limiting plate, and the other end of the torsion spring is fixedly connected to the inner wall of the limiting groove.

[0014] According to an embodiment of the present invention, the lifting frame 1 includes a disc cam 1, a disc cam 1 is fixedly installed on the output shaft of a motor 2 through a coupling, a gear 1 is fixedly installed on the right end of the disc cam 1, a gear 2 meshing with the gear 1 is rotatably connected on the workbench, the diameter of the gear 2 is smaller than the diameter of the gear 1, a sliding block 1 is connected to the lower end of the disc cam in a sliding fit, and a connecting rod is fixedly installed on the lower end of the sliding block; the disc cam 1 is driven to rotate by the motor 2, which drives the sliding block 1 to drive the connecting rod to move up and down, and the rotation period of the gear 2 is changed by the cooperation between the gear 1 and the gear 2.

[0015] According to an embodiment of the present invention, the second lifting frame includes a second disc cam, a second disc cam is fixedly installed on the right end of the second gear, a second sliding block is connected to the lower end of the second disc cam in a sliding manner, a moving rod is fixedly installed on the lower end of the second sliding block, the lower side of the moving rod is connected to the workbench in a sliding manner, and a support spring is fixedly connected between the lower end of the moving rod and the workbench.

[0016] According to an embodiment of the present invention, the rotating frame includes a rotating column, the lower end of the connecting rod is rotatably connected to the rotating column, the cross-section below the rotating column is square, the outer side of the lower end of the rotating column is connected to the limiting cylinder in a sliding manner, the limiting cylinder and the workbench are rotatably connected, and sliding column grooves with square cross-sections are symmetrically opened on the upper and lower sides of the middle of the limiting cylinder, the lower end of the limiting cylinder is connected to the square column in a sliding manner, and connecting springs are fixedly connected between the square column and the limiting cylinder and between the rotating column and the limiting cylinder, and the lower outer end of the square column is fixedly connected to the driving frame.

[0017] According to an embodiment of the present invention, the driving frame includes a circular plate 1, a circular plate 1 is fixedly installed on the outer end of the lower side of the square column, arc-shaped matching grooves are evenly opened on the circular plate 1, round head grooves are opened on the circular plate 1 and between the arc-shaped matching grooves, a circular plate 2 is rotatably connected on the workbench and located at the rear side of the circular plate 1, a circular plate 3 is fixedly installed on the upper end of the circular plate 2, an arc-shaped groove matching the arc-shaped matching groove is opened on the circular plate 3, a toggle cylinder matching the round head groove is fixedly installed on the upper end of the circular plate 2 and located at the rear side of the arc-shaped groove, a motor 3 is fixedly installed on the workbench through a motor seat, and the output shaft of the motor 3 is fixedly connected to the circular plate 2 through a coupling.

[0018] According to an embodiment of the present invention, the push piece frame includes a support rod, and the left and right ends of the outer end of the rotating column are symmetrically fixedly installed with support rods, and the end of the support rod is fixedly installed with a linkage rod, the support rod is perpendicular to the linkage rod, and a plurality of push piece rods are fixedly installed on the linkage rod and away from the rotating column. The plurality of push piece rods are linearly and evenly arranged along the linkage rod, and a protruding column is fixedly installed on the lower end of the push piece rod, and an adsorption groove is evenly opened on the lower end of the protruding column, and the adsorption grooves on each protruding column are connected to each other, and the adsorption grooves between adjacent protruding columns are connected to the linkage pipe that penetrates the linkage rod through an L-shaped connecting hole, and the L-shaped connecting hole passes through the inside of the push piece rod and the protruding column, an air pump is fixedly installed on the upper end of the support rod, and the linkage pipe in the middle is fixedly connected to the air pump through a main control pipe, and the structure of the push piece frame 2 is the same as that of the push piece frame 1.

[0019] According to an embodiment of the present invention, the ejection rack includes two support rods, the two support rods are fixedly installed on the moving rod, the two support rods are connected to the workbench in an up and down sliding manner, the two linkage rods are fixedly installed at the end of the two support rods, the front end of the two linkage rods is evenly fixed with an ejection rod, the front lower end of the ejection rod is fixedly installed with two protruding columns, and the lower end of the two protruding columns is symmetrically fixed with round-headed ejection pins.

[0020] It can be seen from the above technical solutions that the present invention has the following advantages:

[0021] 1. In the present invention, the crystal seat, the metal shell and the crystal with pins are evenly placed and conveyed by cooperating with the conveyor belt composed of the toothed chain belt 1 and the toothed chain belt 2, and the micro-assembly line 1 and the micro-assembly line 2. During the conveying process, the crystal with pins is first aligned and connected with the crystal seat, and then the crystal seat and the metal shell are aligned and fixed, and then the processed crystal oscillator is pushed out of the equipment for collection. When the crystal with pins is aligned and connected with the crystal seat, the pins are protected to prevent them from being bent by external forces. By utilizing the vertical distance between the micro-assembly line 2 and the toothed chain belt 1, the pins are first aligned and connected with the holes on the crystal seat during the downward movement, and then the crystal with pins is always aligned and connected with the crystal seat under the limit of two points. During the whole process, each alignment connection and ejection is controlled by the same drive, ensuring that the crystal oscillator completed each time is ejected with the next alignment connection, thereby reducing the number of drives and reducing the processing cost of the equipment.

[0022] 2. In the present invention, the pins connected to the crystal seat are limited and fixed by cooperating with arc groove 1, arc groove 2, semi-cylindrical groove 1 and semi-cylindrical groove 2 on limit block 1 and limit block 2, and the metal shell can pass through micro assembly line 1 smoothly by cooperating with support plate and torsion spring 1.

[0023] 3. In the present invention, the double round hole 2 is used to prevent the micro assembly line 2 from interfering with the smooth downward movement of the metal shell, the moving block is used to limit the crystal with pins, and the torsion spring 2 cooperates with the limiting plate to limit the crystal with pins moving with the moving block.

[0024] 4. In the present invention, the driving frame drives the square column to rotate, thereby driving the rotating column to rotate. With the cooperation of the connecting rod, the rotating column rotates while moving up and down in the vertical plane. The square column, the limiting cylinder and the rotating column cooperate with each other to prevent the driving frame from interfering with the rotation of the rotating column.

[0025] In addition to the technical problems solved by the embodiments of the present application described above, the technical features that constitute the technical scheme, and the beneficial effects brought about by the technical features of the technical scheme, other technical problems that can be solved by the manufacturing method based on a chip crystal oscillator provided by the embodiments of the present application, other technical features included in the technical scheme, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0027] Figure 1 A workflow diagram of the present invention is shown.

[0028] Figure 2 A schematic diagram of a main-view stereoscopic structure provided according to an embodiment of the present invention is shown.

[0029] Figure 3 A rear perspective structural diagram of the drive frame is shown.

[0030] Figure 4 A left-view structural schematic diagram provided according to an embodiment of the present invention is shown.

[0031] Figure 5 Shows Figure 4 AA section view.

[0032] Figure 6 Shows Figure 5 A local enlarged view of point G.

[0033] Figure 7 Shows Figure 4 BB cross-sectional view.

[0034] Figure 8 Shows Figure 7 A local enlarged view of point M.

[0035] Fig. 9 Shows Figure 7 A local enlarged view of point E.

[0036] Fig.10 A schematic diagram of a left-side sectional plan structure provided according to an embodiment of the present invention is shown.

[0037] Fig.11 Shows Fig.10 A local enlarged view of location N.

[0038] Fig.12 A schematic diagram showing the state changes of the alignment connection between the crystal with pins and the crystal seat of the present invention is shown.

[0039] Fig.13 A schematic diagram showing the state change of the metal housing and the crystal seat being aligned and connected in the present invention is shown.

[0040] Fig.14A schematic diagram of the main cross-sectional plan structure of an annular groove 1 is shown.

[0041] Fig.15 A top view of the stop plate and pins is shown.

[0042] The above drawings include the following reference numerals:

[0043] 1. Assembly unit; 11. Workbench; 12. Sprocket wheel 1; 13. Toothed chain belt 1; 131. Annular groove 1; 132. Cylindrical spring 1; 133. Stop block 1; 134. Arc groove 1; 135. Semi-cylindrical groove 1; 14. Toothed chain belt 2; 141. Annular groove 2; 142. Cylindrical spring 2; 143. Stop block 2; 144. Arc groove 2; 145. Semi-cylindrical groove 2; 15. Motor 1; 16. Micro assembly line 1; 161. Double round head hole 1 ; 162, alignment groove; 163, support plate; 164, torsion spring one; 17, micro assembly line two; 171, double round head hole two; 172, receiving groove; 173, fixed spring; 174, moving block; 175, limit groove; 176, limit plate; 177, torsion spring two; 18, motor two; 19, lifting frame one; 191, disc cam one; 192, gear one; 193, gear two; 194, sliding block one; 195, connecting rod; 20, lifting frame two; 201, disc cam 2; 202, sliding block 2; 203, moving rod; 204, supporting spring; 21, rotating frame; 211, rotating column; 212, limiting cylinder; 213, square column; 214, connecting spring; 22, driving frame; 221, circular plate 1; 222, arc-shaped matching groove; 223, round head groove; 224, circular plate 2; 225, circular plate 3; 226, arc-shaped groove; 227, toggle cylinder; 228, motor 3; 23, push piece Frame 1; 231, support rod 1; 232, linkage rod 1; 233, push rod 1; 234, protruding column 1; 235, adsorption groove 1; 236, linkage pipe; 237, air pump 1; 238, main control pipe 1; 24, push rack 2; 25, ejector rack; 251, support rod 2; 252, linkage rod 2; 253, ejector rod; 254, protruding column 2; 255, round head ejector pin; 3, welding unit; 31, automatic welding machine 1; 32, automatic welding machine 2. DETAILED DESCRIPTION

[0044] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0045] See also Figure 1 , a method for making a patch crystal oscillator, comprising the following steps: S1, cutting and polishing: cutting the quartz crystal into rectangular slices and polishing the upper and lower surfaces thereof.

[0046] S2. Silver plating adjustment: A layer of silver is plated on the upper and lower surfaces of the polished crystal through sputtering technology to form an electrode, and the thickness of the electrode or the size of the crystal is adjusted to accurately adjust the frequency of the crystal oscillator to meet the design requirements.

[0047] S3. Package crystal: Place the processed crystal on a pre-prepared crystal seat containing an insulator, dock and package the metal shell with the crystal seat, fix the electrode leads, and keep the packaging process in a vacuum state.

[0048] S4, test and shipment: After packaging is completed, the crystal oscillator is tested, and it is packaged and shipped after it meets the requirements of the product specification.

[0049] Wherein step S3 is completed by using a chip crystal oscillator manufacturing device, the manufacturing device includes an assembly unit 1 and a welding unit 3, the welding unit 3 is arranged on the assembly unit 1 for welding the crystal with pins, the crystal seat and the metal shell.

[0050] See also Figure 2 and Figure 4 The assembly unit 1 includes a workbench 11, and a sprocket wheel 12 is symmetrically connected to the front of the workbench 11 for rotation. The sprocket wheels 12 are connected to the two sprocket wheels 14 through a toothed chain belt 13. The two toothed chain belts 14 are symmetrically arranged on the front and rear sides of the toothed chain belt 13. A motor 15 is fixedly installed on the workbench 11 through a motor seat. The output shaft of the motor 15 is fixedly connected to the sprocket wheel 12 on the left side through a coupling. The upper end of the workbench 11 and located above the toothed chain belt 13 are fixedly connected with a micro-assembly line 16 and a micro-assembly line 2 17 from top to bottom. A motor 2 18 is fixedly installed on the upper end of the rear side of the workbench 11 through a motor seat. The output shaft of the motor 18 is fixedly connected to the sprocket wheel 12 on the left side through a coupling. The shaft is fixedly installed with a lifting frame 19 through a coupling, a lifting frame 20 is fixedly installed on the right end of the lifting frame 19, a rotating frame 21 is arranged at the lower end of the lifting frame 19, and a driving frame 22 is arranged at the lower end of the rotating frame 21. In the initial state, a pushing frame 23 is symmetrically fixedly installed at the left and right ends of the outer end of the rotating frame 21, and a pushing frame 24 is symmetrically fixedly installed at the front and back ends of the outer end of the rotating frame 21. A lifting frame 25 is fixedly installed on the lifting frame 20; the welding unit 3 includes an automatic welding machine 31, an automatic welding machine 31 is evenly fixedly installed on the pushing frame 24, and an automatic welding machine 2 32 is evenly fixedly installed on the pushing frame 23. The manufacturing equipment is assembled in a vacuum machine for use.

[0051] First, place the crystal seat evenly on the conveyor belt formed by the toothed chain belt 13 and the toothed chain belt 2 14, place the crystal with pins evenly on the micro-assembly line 2 17, and place the metal shell evenly on the micro-assembly line 16. When the crystal with pins, the crystal seat and the metal shell are in the same vertical plane, the lifting frame 19 is driven by the motor 2 18 to move downward a distance of 1, so that the pusher frame 24 squeezes the crystal with pins, so that the crystal with pins is aligned with the crystal seat below. During the alignment connection process, the micro-assembly line 2 17 gradually stops limiting the crystal with pins, and the crystal with pins is completely aligned with the crystal seat. At this time, the pins are welded to the insulator on the crystal seat by the automatic welding machine 31. After welding, the pusher frame 24 moves up to the initial position, and the rotating frame 21 is driven to rotate by the driving frame 22, thereby driving the pusher frame 24 to rotate, and the pusher frame 1 23 and the pusher frame 24 are aligned. The position of rack 24 is switched, and the micro-assembly line 2 17 is fed to the right at the same time. At this time, the motor 15 drives the lifting rack 19 to move downward a distance of No. 2, so that the pushing rack 23 first squeezes the metal shell, so that the metal shell is separated from the micro-assembly line 16 and enters the micro-assembly line 2 17, and the pushing rack 23 continues to move downward, thereby driving the metal shell to separate from the micro-assembly line 2 17 and to be aligned with the crystal seat. At this time, the metal shell and the crystal seat are welded by the automatic welding machine 2 32, and the welding is carried out in a vacuum environment by the vacuum machine. When more and more completely welded crystal oscillators move to the bottom of the sprocket 12 with the toothed chain belt 13 and the toothed chain belt 2 14, when the lifting rack 19 moves in any vertical direction, the lifting rack 19 will drive the lifting rack 20 to move downward, thereby driving the ejecting rack 25 to squeeze the completely welded crystal oscillator, so that the welded crystal oscillator falls downward, and the crystal oscillator is transported and collected.

[0052] It should be noted that due to the shape limitation of the disc cam 191, the second distance will be greater than the first distance.

[0053] See also Fig.11 , Fig.12 and Fig.14The toothed chain belt 13 is symmetrically provided with an annular groove 131 in the front and rear, a cylindrical spring 132 is evenly fixedly installed in the annular groove 131 along its circumference, a limiting block 133 is fixedly installed at the end of the cylindrical spring 132, an arc groove 134 is provided at the end of the limiting block 133 away from the cylindrical spring 132, a semi-cylindrical groove 135 is provided at the lower end of the arc groove 134, and an annular groove 141 is provided at the end of the toothed chain belt 13, a cylindrical spring 142 is evenly fixedly installed in the annular groove 141, and a limiting block 143 is fixedly installed at the end of the cylindrical spring 142. An arc groove 144 is provided at one end of the limit block 143 away from the cylindrical spring 142, and a semi-cylindrical groove 145 is provided at the lower end of the arc groove 144, and the semi-cylindrical groove 1 135 corresponds to the semi-cylindrical groove 145; the limit block 133 cooperates with the arc groove 134 and the arc groove 144 on the limit block 143 to form a truncated cone groove, and the semi-cylindrical groove 1 135 on the limit block 133 cooperates with the semi-cylindrical groove 145 on the limit block 143 to form a cylindrical groove, and the pin is smoothly entered into the cylindrical groove pair through the truncated cone groove, so as to achieve the purpose of limiting and fixing the pin after being aligned and connected with the crystal seat.

[0054] See also Figure 8 and Fig.13 The micro-assembly line 16 is provided with double round-head holes 161 evenly along its linear direction, and the inner ends of the double round-head holes 161 are symmetrically provided with alignment grooves 162, and the alignment grooves 162 are rotatably connected with a support plate 163 through a pin shaft, and a torsion spring 164 is sleeved on the pin shaft, and one end of the torsion spring 164 is fixedly connected to the support plate 163, and the other end of the torsion spring 164 is fixedly connected to the inner wall of the alignment groove 162; when the metal shell on the micro-assembly line 16 is squeezed, the support plate 163 is first rotated by force, so that the metal shell passes through the micro-assembly line 16 smoothly.

[0055] See also Fig. 9 , Fig.12 , Fig.13 and Fig.15The micro-pipeline 17 is provided with an anti-interference group evenly arranged along its linearity, and a positioning group is provided on the micro-pipeline 17 and between the anti-interference groups. The anti-interference group is composed of a plurality of evenly arranged double round holes 171, and the positioning group is composed of a plurality of evenly arranged Chinese-shaped receiving grooves 172. The number of double round holes 171 in one anti-interference group is the same as the number of receiving grooves 172 in one positioning group, and fixed springs are evenly and symmetrically fixed on both sides of the receiving grooves 172. 173, the upper end of the fixed spring 173 on the same side is fixedly installed with a convex-shaped moving block 174, a limiting groove 175 is provided in the middle of the moving block 174, the limiting groove 175 is symmetrically connected to the limiting plate 176 through the pin shaft, the limiting plate 176 is matched with the crystal with the pin, and a torsion spring 177 is sleeved on the pin shaft, one end of the torsion spring 177 is fixedly connected to the limiting plate 176, and the other end of the torsion spring 177 is fixedly connected to the inner wall of the limiting groove 175; through the double round head Hole 2 171 prevents micro-assembly line 2 17 from interfering with the smooth downward movement of the metal shell. The crystal with pins is fixed by cooperating with the moving block 174 and the limiting plate 176. When the crystal with pins is subjected to the vertical downward extrusion force, it first drives the moving block 174 to move downward together to squeeze the fixing spring 173. The bottom end of the pin on the crystal is first inserted into the crystal seat for preliminary positioning. When the fixing spring 173 is compressed to the shortest, it continues to squeeze the crystal with pins. At this time, the crystal with pins squeezes the limiting plate 176, and the torsion spring 2 177 drives the limiting plate 176 to rotate, and no longer limits the crystal with pins. The crystal with pins continues to move downward until the pins are completely inserted into the crystal seat. Through the cooperation of the anti-interference group and the positioning group, when the crystal with pins is aligned and fixed with the crystal seat, the micro-assembly line 2 17 continues to move, so that the anti-interference group moves to the position of the positioning group to prevent interference with the downward movement of the metal shell and the alignment and fixation between the crystal seat.

[0056] See also Figure 2 and Fig.10 The lifting frame 19 includes a disc cam 191, and the output shaft of the motor 18 is fixedly installed with the disc cam 191 through a coupling. A gear 192 is fixedly installed on the right end of the disc cam 191. A gear 193 meshing with the gear 192 is rotatably connected on the workbench 11. The diameter of the gear 193 is smaller than the diameter of the gear 192. The lower end of the disc cam 191 is connected with a sliding block 194 in a sliding fit manner, and a connecting rod 195 is fixedly installed on the lower end of the sliding block 194; the disc cam 191 is driven to rotate by the motor 18, so that the connecting rod 195 is driven to move up and down by the sliding block 194, and the rotation period of the gear 193 is changed by the gear 192 cooperating with the gear 2 193.

[0057] See also Figure 5 and Figure 7The lifting frame 20 includes a disc cam 201, a disc cam 201 is fixedly installed on the right end of the gear 193, a sliding block 202 is connected to the lower end of the disc cam 201 in a sliding manner, a moving rod 203 is fixedly installed on the lower end of the sliding block 202, the lower side of the moving rod 203 is connected to the workbench 11 in a sliding manner, and a supporting spring 204 is fixedly connected between the lower end of the moving rod 203 and the workbench 11; the sliding block 202 and the moving rod 203 are driven to reciprocate on the vertical plane by the disc cam 201.

[0058] See also Fig.10 The rotating frame 21 includes a rotating column 211, the lower end of the connecting rod 195 is rotatably connected to the rotating column 211, the cross section below the rotating column 211 is square, the outer side of the lower end of the rotating column 211 is connected to the limiting cylinder 212 in a sliding fit manner, the limiting cylinder 212 is rotatably connected to the workbench 11, and the middle of the limiting cylinder 212 is symmetrically provided with sliding column grooves with a square cross section on both sides, and the lower end of the limiting cylinder 212 is connected to a square column 213 in a sliding fit manner, and the square column 213 and the limiting cylinder 212 are connected. A connecting spring 214 is fixedly connected between the square column 213 and between the rotating column 211 and the limiting cylinder 212. The lower outer end of the square column 213 is fixedly connected to the driving frame 22. The driving frame 22 drives the square column 213 to rotate, thereby driving the rotating column 211 to rotate. With the cooperation of the connecting rod 195, the rotating column 211 moves up and down in the vertical plane while rotating. The square column 213, the limiting cylinder 212 and the rotating column 211 cooperate to make the rotating column 211 rotate while moving up and down. Figure 3 and Fig.10 The driving frame 22 includes a circular plate 1 221, a circular plate 1 221 is fixedly installed on the outer end of the lower side of the square column 213, and the circular plate 1 221 is evenly provided with arc-shaped matching grooves 222, and round head grooves 223 are provided on the circular plate 1 221 and between the arc-shaped matching grooves 222, and a circular plate 2 224 is rotatably connected to the workbench 11 and located at the rear side of the circular plate 1 221, and a circular plate 3 225 is fixedly installed on the upper end of the circular plate 224, and a circular plate 3 225 is provided with a matching arc groove 223. An arc groove 226 that matches the groove 222, a toggle cylinder 227 that matches the round head groove 223 is fixedly installed on the upper end of the circular plate 224 and located on the rear side of the arc groove 226, a motor 3 228 is fixedly installed on the workbench 11 through a motor seat, and the output shaft of the motor 3 228 is fixedly connected to the circular plate 2 24 through a coupling; the circular plate 224 is driven to rotate by the motor 3 228, and the toggle cylinder 227 on the circular plate 224 drives the circular plate 1 221 to rotate intermittently.

[0059] See also Figure 5 and Figure 6The pusher frame 23 includes a support rod 231, and the support rods 231 are symmetrically fixedly installed at the left and right ends of the outer end of the rotating column 211. A linkage rod 232 is fixedly installed at the end of the support rod 231. The support rod 231 is perpendicular to the linkage rod 232. A plurality of pusher rods 233 are fixedly installed on the linkage rod 232 and at one end away from the rotating column 211. The plurality of pusher rods 233 are linearly and evenly arranged along the linkage rod 232. A protruding column 234 is fixedly installed at the lower end of the pusher rod 233. The lower end of the protruding column 234 is evenly provided with an adsorption groove 235. The adsorption grooves 235 on each protruding column 234 are connected to each other, and the adsorption grooves 235 on adjacent protruding columns 234 are connected to each other. The adsorption groove 235 in the middle is connected with the linkage pipe 236 that passes through the linkage rod 232 through an L-shaped connecting hole. The L-shaped connecting hole passes through the inside of the push rod 233 and the protruding column 234. An air pump 237 is fixedly installed on the upper end of the support rod 231. The linkage pipe 236 in the middle is fixedly connected to the air pump 237 through a main control pipe 238. The push rack 24 has the same structure as the push rack 23; the protruding column 234 is tightly attached to the metal shell, and the air pump 237 is used to evacuate the metal shell and the adsorption groove 235 to achieve negative pressure adsorption. When the metal shell is in contact with the crystal seat and welded, the air pump 237 is ventilated to separate the metal shell from the adsorption groove 235.

[0060] See also Figure 3 , Fig.10 and Fig.11 The ejection rack 25 includes a second support rod 251, on which the second support rod 251 is fixedly installed on the moving rod 203, and the second support rod 251 is connected to the workbench 11 in a sliding manner. A second linkage rod 252 is fixedly installed at the end of the second support rod 251, and a ejection rod 253 is evenly fixedly installed at the front end of the second linkage rod 252, and a protruding column 254 is fixedly installed at the lower end of the front side of the ejection rod 253, and a round-headed ejection pin 255 is fixedly installed at the lower end of the protruding column 254 symmetrically in front and back; when the assembled metal shell and the crystal seat move to the bottom of the ejection rod 253 along with the toothed chain belt 13, the pins on the crystal oscillator are ejected by the round-headed ejection pin 255 on the protruding column 254.

[0061] In the description of the present invention, it is necessary to understand that the terms "center", "middle", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "end", "axial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0062] In addition, the terms "first", "second", "number one", "number two", "one", "two" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise clearly and specifically limited.

[0063] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a sliding connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for making a chip crystal oscillator, characterized in that , including the following steps: S1. Cutting and polishing: Cut the quartz crystal into rectangular slices and polish the upper and lower surfaces; S2, Silver plating adjustment: Sputtering technology is used to plate a layer of silver on the upper and lower surfaces of the polished crystal to form an electrode, and the thickness of the electrode or the size of the crystal is adjusted to accurately adjust the frequency of the crystal oscillator to meet the design requirements; S3, packaging crystal: placing the processed crystal on a pre-prepared crystal seat containing an insulator, docking and packaging the metal shell with the crystal seat, fixing the electrode leads, and the packaging process is in a vacuum state; S4, test and shipment: After the packaging is completed, the crystal oscillator is tested, and it is packaged and shipped after it meets the requirements of the product specification; Step S3 is completed by using a chip crystal oscillator manufacturing device, the manufacturing device includes an assembly unit and a welding unit, the welding unit is arranged on the assembly unit for welding the crystal with pins, the crystal seat and the metal shell; The assembly unit includes a workbench, a sprocket wheel one is symmetrically connected to the front of the workbench for rotation, the sprocket wheels one are connected to two toothed chain belts two for common transmission through a toothed chain belt one, the two toothed chain belts two are symmetrically arranged on the front and rear sides of the toothed chain belt one, a motor one is fixedly installed on the workbench through a motor seat, the output shaft of the motor one is fixedly connected to the sprocket wheel one on the left side through a coupling, a micro-assembly line one and a micro-assembly line two are respectively fixedly connected from top to bottom at the upper end of the workbench and above the toothed chain belt one, a motor two is fixedly installed on the upper end of the rear side of the workbench through a motor seat, a lifting frame one is fixedly installed on the output shaft of the motor two through a coupling, a lifting frame two is fixedly installed on the right end of the lifting frame one, a rotating frame is arranged at the lower end of the lifting frame, and a driving frame is arranged at the lower end of the rotating frame, in an initial state, a pushing frame one is symmetrically fixedly installed at the left and right ends of the outer end of the rotating frame, a pushing frame two is symmetrically fixedly installed at the front and rear ends of the outer end of the rotating frame, and a material ejecting frame is fixedly installed on the lifting frame two; The welding unit comprises an automatic welding machine 1 evenly fixedly mounted on a pusher rack 2, the pusher rack 1 evenly fixedly mounts an automatic welding machine 2, and the manufacturing equipment is assembled in a vacuum machine for use; The crystal seat is evenly placed on the conveyor belt formed by the toothed chain belt 1 and the toothed chain belt 2, the crystal with the pins is evenly placed on the micro-assembly line 2, and the metal shell is evenly placed on the micro-assembly line 1. When the aforementioned crystal, crystal seat and metal shell are in the same vertical plane, the lifting frame moves down a distance of one, so that the pusher frame 2 squeezes the crystal to complete the alignment connection between the crystal and the crystal seat below. After the welding between the pins and the insulator on the crystal seat is completed, the pusher frame 2 moves up to the initial position, and the driving frame drives the rotating frame to rotate, so that the positions of the pusher frame 1 and the pusher frame 2 are switched. At the same time, the micro-assembly line 2 feeds to the right, and the lifting frame moves down a distance of two, and the pusher frame 1 squeezes the metal shell downward, so that the metal shell is finally separated from the micro-assembly line 2 and is aligned with the crystal seat. The metal shell and the crystal seat are welded into a crystal oscillator. When the crystal oscillator moves to the bottom of the sprocket 1 with the conveyor belt, when the lifting frame 1 moves down, it will drive the lifting frame 2 to move downward, and the ejector frame squeezes the crystal oscillator to make it fall downward.

2. The method for making a chip crystal oscillator according to claim 1, characterized in that: The toothed chain belt 1 is symmetrically provided with an annular groove 1, a cylindrical spring 1 is evenly fixedly installed in the annular groove 1 along its circumference, a limiting block 1 is fixedly installed at the end of the cylindrical spring 1, an arc groove 1 is provided at the end of the limiting block 1 away from the cylindrical spring 1, a semi-cylindrical groove 1 is provided at the lower end of the arc groove, and an annular groove 2 is provided at the end of the toothed chain belt 2 facing the toothed chain belt 1, a cylindrical spring 2 is evenly fixedly installed in the annular groove 2, a limiting block 2 is fixedly installed at the end of the cylindrical spring 2, an arc groove 2 is provided at the end of the limiting block 2 away from the cylindrical spring 2, a semi-cylindrical groove 2 is provided at the lower end of the arc groove 2, and the semi-cylindrical groove 1 corresponds to the semi-cylindrical groove 2.

3. The method for making a chip crystal oscillator according to claim 1, characterized in that: The micro assembly line is linearly and evenly provided with double round-head holes, and the inner ends of the double round-head holes are symmetrically provided with alignment grooves. A support plate is rotatably connected to the alignment groove via a pin shaft, and a torsion spring is sleeved on the pin shaft. One end of the torsion spring is fixedly connected to the support plate, and the other end of the torsion spring is fixedly connected to the inner wall of the alignment groove.

4. The method for manufacturing a chip crystal oscillator according to claim 1, characterized in that: The second micro-assembly line is evenly provided with an anti-interference group along its linearity, and a positioning group is provided on the second micro-assembly line and between the anti-interference groups. The anti-interference group is composed of a plurality of evenly arranged double round-head holes, and the positioning group is composed of a plurality of evenly arranged Chinese-shaped receiving grooves. The number of double round-head holes in one anti-interference group is the same as the number of receiving grooves in one positioning group. Fixed springs are symmetrically and evenly fixedly installed on the left and right sides of the receiving grooves, and a convex-shaped moving block is commonly fixedly installed on the upper ends of the fixed springs. A limiting groove is provided in the middle of the moving block, and the limiting plate is symmetrically connected to the limiting groove by a pin shaft. The limiting plate cooperates with a crystal with a pin, and a torsion spring is sleeved on the pin shaft. One end of the torsion spring is fixedly connected to the limiting plate, and the other end of the torsion spring is fixedly connected to the inner wall of the limiting groove.

5. The method for manufacturing a chip crystal oscillator according to claim 1, characterized in that: The lifting frame 1 includes a disc cam 1, a disc cam 1 is fixedly installed on the output shaft of motor 2 through a coupling, a gear 1 is fixedly installed on the right end of the disc cam 1, a gear 2 meshing with the gear 1 is rotatably connected on the workbench, the diameter of the gear 2 is smaller than the diameter of the gear 1, and a sliding block 1 is connected to the lower end of the disc cam in a sliding fit manner, and a connecting rod is fixedly installed on the lower end of the sliding block.

6. The method for manufacturing a chip crystal oscillator according to claim 5, characterized in that: The lifting frame 2 includes a disc cam 2, a disc cam 2 is fixedly installed on the right end of the gear 2, the lower end of the disc cam 2 is connected to the sliding block 2 in a sliding fit manner, a moving rod is fixedly installed on the lower end of the sliding block 2, the lower side of the moving rod is connected to the workbench in a sliding fit manner, and a supporting spring is fixedly connected between the lower end of the moving rod and the workbench.

7. The method for manufacturing a chip crystal oscillator according to claim 5, characterized in that: The rotating frame includes a rotating column, the lower end of the connecting rod is rotatably connected to the rotating column, the cross-section below the rotating column is square, the outer side of the lower end of the rotating column is connected to the limiting cylinder in a sliding manner, the limiting cylinder and the workbench are rotatably connected, the middle of the limiting cylinder has sliding column grooves with square cross-sections symmetrically opened on the upper and lower sides, the lower end of the limiting cylinder is connected to the square column in a sliding manner, the square column and the limiting cylinder and between the rotating column and the limiting cylinder are fixedly connected with connecting springs, and the lower outer end of the square column is fixedly connected to the driving frame.

8. The method for manufacturing a chip crystal oscillator according to claim 7, characterized in that: The driving frame includes a circular plate 1, a circular plate 1 is fixedly installed on the outer end of the lower side of the square column, the circular plate 1 is evenly provided with arc-shaped matching grooves, and round head grooves are provided on the circular plate 1 and between the arc-shaped matching grooves, a circular plate 2 is rotatably connected on the workbench and located at the rear side of the circular plate 1, a circular plate 3 is fixedly installed on the upper end of the circular plate 2, an arc-shaped groove matching the arc-shaped matching groove is provided on the circular plate 3, a toggle cylinder matching the round head groove is fixedly installed on the upper end of the circular plate 2 and located at the rear side of the arc-shaped groove, a motor 3 is fixedly installed on the workbench through a motor seat, and the output shaft of the motor 3 is fixedly connected to the circular plate 2 through a coupling.

9. The method for manufacturing a chip crystal oscillator according to claim 7, characterized in that: The push piece frame includes a support rod, support rods are symmetrically fixedly installed at the left and right ends of the outer end of the rotating column, a linkage rod is fixedly installed at the end of the support rod, the support rod is perpendicular to the linkage rod, a plurality of push piece rods are fixedly installed on the linkage rod and away from the end of the rotating column, and the plurality of push piece rods are linearly and evenly arranged along the linkage rod, a protruding column is fixedly installed at the lower end of the push piece rod, and an adsorption groove is evenly opened at the lower end of the protruding column, the adsorption grooves on each protruding column are connected, and the adsorption grooves between adjacent protruding columns are connected to the linkage pipe passing through the linkage rod through an L-shaped connecting hole, and the L-shaped connecting hole passes through the inside of the push piece rod and the protruding column, an air pump is fixedly installed on the upper end of the support rod, and the linkage pipe in the middle is fixedly connected to the air pump through a main control pipe, and the structure of the push piece frame 2 is the same as that of the push piece frame 1.

10. The method for manufacturing a chip crystal oscillator according to claim 6, characterized in that: The ejection rack includes two support rods, the two support rods are fixedly installed on the moving rod, the two support rods are connected to the workbench in an up and down sliding manner, the two linkage rods are fixedly installed at the ends of the two support rods, the front end of the two linkage rods is evenly fixed with an ejection rod, the lower end of the front side of the ejection rod is fixedly installed with two protruding columns, and the lower end of the two protruding columns is symmetrically fixed with round-headed ejection pins.

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