Auxiliary welding tool for ultrasonic probe

Abstract

The invention discloses an ultrasonic probe welding auxiliary tool, and relates to the technical field of ultrasonic probe production, the ultrasonic probe welding auxiliary tool comprises a welding base, a lower positioning assembly and an upper positioning assembly, the lower positioning assembly is arranged on the outer side of the top of the welding base, a suction cup assembly is arranged in the lower positioning assembly, and a ceramic wafer is arranged at the output end of the suction cup assembly; an upper positioning assembly is arranged on the outer side of the top of the lower positioning assembly. When the ceramic wafer and the butt welding piece are attached, the first pneumatic control suction cup can move at the outer end of the elastic base through reverse displacement and extrude the pressure-sensitive spring to give way, and through giving-way operation, it can be guaranteed that stable attachment of the ceramic wafer and the butt welding piece is guaranteed, and meanwhile pressure loss is avoided; in addition, the pressure-sensitive spring can judge whether the ceramic wafer and the butt-joint soldering lug are tightly pressed or not by sensing a pressure value, and when the ceramic wafer and the butt-joint soldering lug are not firmly attached due to the size error of the ceramic wafer and the butt-joint soldering lug, the first electric push rod drives the ceramic wafer to move upwards, so that the ceramic wafer and the butt-joint soldering lug can be effectively ensured to be in an attached state.

Description

Technical Field

[0001] The present invention relates to the technical field of ultrasonic probe production, and specifically to a welding auxiliary tooling for an ultrasonic probe. Background Art

[0002] An ultrasonic probe is a device that emits and receives ultrasonic waves during the ultrasonic detection process. The performance of the probe directly affects the characteristics of ultrasonic waves or the detection performance of ultrasonic waves. An ultrasonic probe is a transducer that utilizes the piezoelectric effect of materials to achieve the conversion between electrical energy and acoustic energy. The probe generally consists of a double piezoelectric wafer element composed of a piezoelectric ceramic wafer and a welding sheet. When an electrical signal is applied to the probe, ultrasonic waves will be generated due to bending vibration; conversely, when ultrasonic vibration is applied to the probe, an electrical signal will be generated. During the production process of an ultrasonic probe, it is necessary to weld the ultrasonic probe and the ceramic wafer.

[0003] The accuracy requirements for the welding process between the ceramic wafer and the welding sheet are very high. If there are deviations in the welding, it will affect the performance of the probe, and further affect the emission and reception of ultrasonic waves. Therefore, a welding auxiliary tooling is required during the welding process of the ultrasonic probe. However, the common welding auxiliary tooling on the market is difficult to operate, has a slow positioning speed and low accuracy. In addition, it is difficult to accurately control the fitting stability between the ceramic wafer and the welding sheet. If the fitting stability is poor, it will lead to low welding firmness. If the fitting is too tight, it is easy to cause damage to the ceramic wafer or the welding sheet during the positioning process.

[0004] Therefore, in view of this, research and improvement are carried out on the existing structure and deficiencies, and a welding auxiliary tooling for an ultrasonic probe is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a welding auxiliary tooling for an ultrasonic probe to solve the problems raised in the above background art.

[0006] To achieve the above object, the present invention provides the following technical solution: A welding auxiliary tooling for an ultrasonic probe, comprising a welding base, a lower positioning component, and an upper positioning component. The lower positioning component is arranged on the outer side of the top of the welding base, and a suction cup component is arranged inside the lower positioning component. The output end of the suction cup component is provided with a ceramic wafer. The upper positioning component is arranged on the outer side of the top of the lower positioning component. The upper positioning component includes an upper docking platform, a lead screw slider, a positioning frame, a second electric push rod, a welding platform, a welding head, an inner positioning sleeve, a limiting groove, a communication groove, a suction pump, an air delivery pump, a driven turntable, a third electric push rod, and a second pneumatic suction cup. The outer sides of both ends of the upper docking platform are provided with lead screw sliders, and positioning frames are arranged at both ends of the outer part of the upper docking platform. A second electric push rod is arranged inside the positioning frame, and the output end of the second electric push rod is provided with a welding platform. The outer end of the welding platform is provided with a welding head. An inner positioning sleeve is arranged inside the upper docking platform, and limiting grooves are opened on both sides inside the inner positioning sleeve. Communication grooves are opened on both sides of the top of the upper docking platform, and a suction pump is arranged on the left side of the top of the upper docking platform. An air delivery pump is arranged at the right end of the top of the upper docking platform. A driven turntable is arranged inside the top of the inner positioning sleeve, and a third electric push rod is arranged at the bottom end of the driven turntable. The output end of the third electric push rod is provided with a second pneumatic suction cup. A docking welding piece is adsorbed at the bottom end of the second pneumatic suction cup.

[0007] Further, the lower positioning component includes a lower positioning platform, a first motor, a first electric push rod, a mounting seat, a second motor, and an electric control lead screw. The first motor is arranged at the bottom end inside the lower positioning platform, and the output end of the first motor is provided with the first electric push rod. Mounting seats are arranged on both outer sides of the lower positioning platform, and a second motor is arranged at the outer end of the bottom of the mounting seat. The output end of the second motor is provided with the electric control lead screw.

[0008] Further, the outer contour of the lower positioning platform matches the inner contour size of the upper docking platform, and the vertical center line of the lower positioning platform coincides with the vertical center line of the upper docking platform.

[0009] Further, the second motor drives the electric control lead screw to rotate, and the electric control lead screw drives the upper docking platform to lift through the lead screw slider.

[0010] Further, the first motor drives the first electric push rod to rotate, and the first electric push rod is fixedly connected to the suction cup component.

[0011] Further, the suction cup component includes an elastic seat, a docking base, a pressure-sensitive spring, a tension sensor, and a first pneumatic suction cup. The outer end of the elastic seat is provided with the docking base. A pressure-sensitive spring is arranged between the docking base and the elastic seat. A tension sensor is arranged at the middle end of the docking base and the elastic seat. The top end of the docking base is provided with the first pneumatic suction cup.

[0012] Further, the elastic seat is elastically connected to the pressure-sensitive spring, and the pressure-sensitive springs are annularly distributed inside the docking base.

[0013] Further, the first pneumatic suction cup is adhesively connected to the ceramic wafer, and the vertical centerlines of the first pneumatic suction cup and the second pneumatic suction cup coincide with each other.

[0014] Further, the upper docking platform and the inner positioning sleeve are integrated, and after the welding platform is displaced, it fits with the inner positioning sleeve.

[0015] Further, the third electric push rod rotates through the driven turntable, and the vertical centerline of the driven turntable coincides with the vertical centerline of the inner positioning sleeve.

[0016] The present invention provides a welding auxiliary tool for an ultrasonic probe, having the following beneficial effects: 1. The staff of the present invention places the ceramic wafer to be welded into the slot at the top of the lower positioning table, enabling the bottom end of the ceramic wafer to fit with the first pneumatic suction cup. Since the size of the slot at the top of the lower positioning table matches the outer contour size of the ceramic wafer, the first pneumatic suction cup adsorbs the ceramic wafer through its operation, achieving precise positioning of the ceramic wafer by the first pneumatic suction cup. After the ceramic wafer is positioned, the staff inserts the docking solder pad into the inner positioning sleeve inside the upper docking platform with the pins facing upward, enabling the docking solder pad to fit with the second pneumatic suction cup. The limiting grooves provided on both sides inside the inner positioning sleeve can prevent the pins of the docking solder pad from interfering with the inner positioning sleeve, and the docking solder pad can be limited by placing the pins in the limiting grooves. In addition, since the outer contour of the docking solder pad matches the contour size of the bottom opening of the inner positioning sleeve, when the second pneumatic suction cup adsorbs the docking solder pad, the position accuracy of the docking solder pad can be effectively guaranteed. Through the above design, the device can quickly achieve the position positioning and fixation of the ceramic wafer and the docking solder pad.

[0017] 2. The present invention drives the electric control lead screw to rotate through the second motor, enabling the lead screw slider to drive the upper docking platform to move downward along the electric control lead screw. Since the outer contour size of the lower positioning table matches the inner contour size of the upper docking platform, the upper docking platform can be sleeved outside the lower positioning table. At this time, through the operation of the first electric push rod and the third electric push rod, the ceramic wafer and the docking solder pad can be brought closer to each other and fit. When the ceramic wafer and the docking solder pad fit, the first pneumatic suction cup can displace itself outside the elastic seat and squeeze the pressure-sensitive spring to make way through reverse displacement. Through the way-making operation, while ensuring the stable fit of the ceramic wafer and the docking solder pad, it can avoid pressure damage. In addition, the pressure-sensitive spring can judge whether the ceramic wafer and the docking solder pad are tightly pressed by sensing the pressure value. If the two do not fit firmly due to the dimensional error between the ceramic wafer and the docking solder pad, the first electric push rod drives the ceramic wafer to move upward, effectively ensuring that the two are in a tightly pressed state.

[0018] 3. When the second electric push rod of the present invention works, the welding table can drive the welding head to displace in the direction of the inner positioning sleeve. After the welding table and the inner positioning sleeve are in contact, the welding head will just move to the contact position of the ceramic wafer and the butt welding piece. Since the position of the welding head when the welding table and the inner positioning sleeve are in contact is fixed, and the extreme pushing position of the third electric push rod is when the ceramic wafer and the butt welding piece are in contact, the adjustment of the contact stability of the ceramic wafer and the butt welding piece is achieved by driving the ceramic wafer to displace by the first electric push rod. In summary, since the displacement positions of the butt welding piece and the welding head remain unchanged all the time, after the welding head moves, it can effectively ensure that it accurately moves to the welding point of the ceramic wafer and the butt welding piece. Through this design, the positioning difficulty and required time of the ceramic wafer, the butt welding piece and the welding head can be greatly reduced, which can greatly improve the welding efficiency of the equipment.

[0019] 4. The welding table of the present invention controls the welding head to work and welds the ceramic wafer and the butt welding piece. During the welding process, the suction pump works to pump out the air inside the lower positioning table and the upper docking table. The docking port at the top of the gas transmission pump can be connected to the argon gas tank. When the gas transmission pump works, it can input argon gas into the lower positioning table and the upper docking table. After the lower positioning table and the upper docking table are sleeved, the ceramic wafer and the butt welding piece are in a closed space, which enables the argon gas to fill the internal space of the lower positioning table and the upper docking table. Through argon gas protection, the welding quality of the ceramic wafer and the butt welding piece can be effectively improved. In addition, when the first motor works, it can transmit torque to the driven turntable, which enables the ceramic wafer and the butt welding piece to rotate. By rotating the ceramic wafer and the butt welding piece, the welding of the ceramic wafer and the butt welding piece can be realized without the displacement of the welding head at a fixed position, which effectively reduces the welding difficulty of the ceramic wafer and the butt welding piece.

[0020] 5. After the welding is completed, the first electric push rod drives the suction cup assembly to move down. If the ceramic wafer and the butt welding piece are welded firmly, the displacement force of the first electric push rod will cause the elastic seat to displace inside the docking base and stretch the pressure-sensitive spring and the tension sensor. If the two are welded firmly, the value of the tension sensor will continue to increase. If the welding is not firm, the ceramic wafer will be separated from the butt welding piece under the action of the tension, which will cause the tension sensor to increase first and then decrease. Through the above characteristics, the operator only needs to observe the value of the tension sensor to judge the welding firmness of the ceramic wafer and the butt welding piece. Since this detection process is within the welding step, when the welding is not firm, the equipment can quickly rework and weld again, which can avoid the cumbersome re-welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of a welding auxiliary tool for an ultrasonic probe according to the present invention; Figure 2Schematic diagram of the internal structure of the lower positioning component of a welding auxiliary tooling for an ultrasonic probe according to the present invention; Figure 3 Schematic diagram of the bottom view structure of the upper positioning component of a welding auxiliary tooling for an ultrasonic probe according to the present invention; Figure 4 Schematic diagram of the internal structure of the upper positioning component of a welding auxiliary tooling for an ultrasonic probe according to the present invention; Figure 5 Schematic diagram of the overall sectional structure of a welding auxiliary tooling for an ultrasonic probe according to the present invention; Figure 6 Schematic diagram of the welding state of a ceramic wafer and a butt welding piece of a welding auxiliary tooling for an ultrasonic probe according to the present invention; Figure 7 Schematic diagram of the structure of the suction cup component of a welding auxiliary tooling for an ultrasonic probe according to the present invention.

[0022] In the figure: 1, welding base; 2, lower positioning component; 201, lower positioning table; 202, first motor; 203, first electric push rod; 204, placement seat; 205, second motor; 206, electric control lead screw; 3, suction cup component; 301, elastic seat; 302, butt joint base; 303, pressure-sensitive spring; 304, tension sensor; 305, first pneumatic suction cup; 4, ceramic wafer; 5, upper positioning component; 501, upper butt joint table; 502, lead screw slide block; 503, positioning frame; 504, second electric push rod; 505, welding table; 506, welding head; 507, inner positioning sleeve; 508, limiting groove; 509, communication groove; 510, suction pump; 511, air delivery pump; 512, driven turntable; 513, third electric push rod; 514, second pneumatic suction cup; 6, butt welding piece. Detailed implementation manners

[0023] Please refer to Figures 1 to 7, the present invention provides a technical solution: a welding auxiliary tooling for an ultrasonic probe, which includes a welding base 1, a lower positioning component 2 and an upper positioning component 5. The lower positioning component 2 is arranged on the outer side of the top of the welding base 1, and a suction cup component 3 is arranged inside the lower positioning component 2. The output end of the suction cup component 3 is provided with a ceramic wafer 4. The upper positioning component 5 is arranged on the outer side of the top of the lower positioning component 2. The upper positioning component 5 includes an upper docking platform 501, a lead screw slider 502, a positioning frame 503, a second electric push rod 504, a welding platform 505, a welding head 506, an inner positioning sleeve 507, a limiting groove 508, a communication groove 509, a suction pump 510, an air delivery pump 511, a driven turntable 512, a third electric push rod 513 and a second pneumatic suction cup 514. The outer sides of both sides of the upper docking platform 501 are provided with lead screw sliders 502, and positioning frames 503 are arranged at both ends of the outer side of the upper docking platform 501. The second electric push rod 504 is arranged inside the positioning frame 503, and the output end of the second electric push rod 504 is provided with a welding platform 505. The welding head 506 is arranged at the outer end of the welding platform 505. The inner positioning sleeve 507 is arranged inside the upper docking platform 501, and limiting grooves 508 are opened on both sides inside the inner positioning sleeve 507. Communication grooves 509 are opened on both sides of the top of the upper docking platform 501. The suction pump 510 is arranged on the left side of the top of the upper docking platform 501, and the air delivery pump 511 is arranged on the right end of the top of the upper docking platform 501. The driven turntable 512 is arranged on the inner side of the top of the inner positioning sleeve 507, and the third electric push rod 513 is arranged at the bottom end of the driven turntable 512. The output end of the third electric push rod 513 is provided with the second pneumatic suction cup 514, and a butt welding piece 6 is adsorbed at the bottom end of the second pneumatic suction cup 514.

[0024] Please refer to Figures 1 to 7, the lower positioning component 2 includes a lower positioning table 201, a first motor 202, a first electric push rod 203, a mounting seat 204, a second motor 205 and an electric control lead screw 206. The first motor 202 is installed at the inner bottom end of the lower positioning table 201, and the output end of the first motor 202 is provided with the first electric push rod 203. Mounting seats 204 are arranged on both outer sides of the lower positioning table 201, and the second motor 205 is installed at the outer end of the bottom of the mounting seat 204. The output end of the second motor 205 is provided with the electric control lead screw 206. The outer contour of the lower positioning table 201 matches the inner contour size of the upper docking table 501, and the vertical center line of the lower positioning table 201 coincides with the vertical center line of the upper docking table 501. The second motor 205 drives the electric control lead screw 206 to rotate, and the electric control lead screw 206 drives the upper docking table 501 to lift through a lead screw slide block 502. The first motor 202 drives the first electric push rod 203 to rotate, and the first electric push rod 203 is fixedly connected to the suction cup assembly 3. The suction cup assembly 3 includes an elastic seat 301, a docking base 302, a pressure-sensitive spring 303, a tensile sensor 304 and a first pneumatic suction cup 305. The docking base 302 is arranged at the outer end of the elastic seat 301, and a pressure-sensitive spring 303 is arranged between the docking base 302 and the elastic seat 301. A tensile sensor 304 is installed at the middle end of the docking base 302 and the elastic seat 301. The first pneumatic suction cup 305 is installed at the top end of the docking base 302. The elastic seat 301 is elastically connected to the pressure-sensitive spring 303, and the pressure-sensitive spring 303 is annularly distributed inside the docking base 302. The first pneumatic suction cup 305 is adsorbed and connected to the ceramic wafer 4, and the vertical center lines of the first pneumatic suction cup 305 and the second pneumatic suction cup 514 coincide with each other. The upper docking table 501 and the inner positioning sleeve 507 are integrated, and after the welding table 505 is displaced, it fits with the inner positioning sleeve 507. The third electric push rod 513 rotates through the driven turntable 512, and the vertical center line of the driven turntable 512 coincides with the vertical center line of the inner positioning sleeve 507; The specific operation is as follows. The staff places the ceramic wafer 4 to be welded into the slot at the top of the lower positioning table 201, enabling the bottom end of the ceramic wafer 4 to fit with the first pneumatic suction cup 305. Since the size of the slot at the top of the lower positioning table 201 matches the outer contour size of the ceramic wafer 4, the first pneumatic suction cup 305 adsorbs the ceramic wafer 4 through its operation, achieving precise positioning of the first pneumatic suction cup 305 on the ceramic wafer 4. After the ceramic wafer 4 is positioned, the staff inserts the docking solder pad 6 into the inner positioning sleeve 507 inside the upper docking table 501 with the pins facing upwards, enabling the docking solder pad 6 to fit with the second pneumatic suction cup 514. The limiting grooves 508 opened on both sides inside the inner positioning sleeve 507 can prevent the pins of the docking solder pad 6 from interfering with the inner positioning sleeve 507, and the limiting of the docking solder pad 6 can be achieved through the placement of the pins in the limiting grooves 508. In addition, since the outer contour of the docking solder pad 6 matches the contour size of the bottom opening of the inner positioning sleeve 507, when the second pneumatic suction cup 514 adsorbs the docking solder pad 6, the position accuracy of the docking solder pad 6 can be effectively guaranteed. Through the above design, the equipment can quickly achieve the position positioning and fixation of the ceramic wafer 4 and the docking solder pad 6. After the ceramic wafer 4 and the docking solder pad 6 are placed, the second motor 205 drives the electric control lead screw 206 to rotate, enabling the lead screw slider 502 to drive the upper docking table 501 to move down along the electric control lead screw 206. Since the outer contour size of the lower positioning table 201 matches the inner contour size of the upper docking table 501, the upper docking table 501 can be sleeved outside the lower positioning table 201. At this time, through the operation of the first electric push rod 203 and the third electric push rod 513, the ceramic wafer 4 and the docking solder pad 6 can be brought closer to each other and fit. When the ceramic wafer 4 and the docking solder pad 6 fit, the first pneumatic suction cup 305 can displace itself outside the elastic seat 301 through reverse displacement and squeeze the pressure-sensitive spring 303 to make way. Through this way of making way, while ensuring the stable fit of the ceramic wafer 4 and the docking solder pad 6, it can avoid pressure damage. In addition, the pressure-sensitive spring 303 can judge whether the ceramic wafer 4 and the docking solder pad 6 are tightly pressed by sensing the pressure value. If the two do not fit firmly due to the dimensional error between the ceramic wafer 4 and the docking solder pad 6, the first electric push rod 203 drives the ceramic wafer 4 to move upwards, effectively ensuring that the two are in a tightly pressed state. After the ceramic wafer 4 and the docking solder pad 6 are tightly pressed, through the operation of the second electric push rod 504, the welding table 505 can drive the welding head 506 to displace towards the inner positioning sleeve 507. After the welding table 505 and the inner positioning sleeve 507 are in complete fit, the welding head 506 will also exactly move to the fit position of the ceramic wafer 4 and the docking solder pad 6. Since the position where the welding head 506 is located when the welding table 505 and the inner positioning sleeve 507 are in fit is fixed, and the limit push-out position of the third electric push rod 513 is when the ceramic wafer 4 and the docking solder pad 6 are in a fit state, therefore, when adjusting the fit stability of the ceramic wafer 4 and the docking solder pad 6, it is achieved by the first electric push rod 203 driving the displacement of the ceramic wafer 4. In summary,Since the displacement positions of the butt welding pad 6 and the welding head 506 remain unchanged all the time, after the welding head 506 moves, it can effectively ensure that it moves precisely to the welding point of the ceramic wafer 4 and the butt welding pad 6. Through this design, the positioning difficulty and required time of the ceramic wafer 4, the butt welding pad 6, and the welding head 506 can be greatly reduced, which can greatly improve the welding efficiency of the equipment. After the displacement of the welding head 506 is completed, the welding table 505 controls the welding head 506 to work and welds the ceramic wafer 4 and the butt welding pad 6. During the welding process, the suction pump 510 works to pump out the air inside the lower positioning table 201 and the upper docking table 501. The docking port at the top of the gas transmission pump 511 can be connected to the argon gas tank. When the gas transmission pump 511 works, it can input argon gas into the lower positioning table 201 and the upper docking table 501. After the lower positioning table 201 and the upper docking table 501 are sleeved, a sealed space can be formed at the ceramic wafer 4 and the butt welding pad 6, which enables the argon gas to fill the internal space of the lower positioning table 201 and the upper docking table 501. Through argon protection, the welding quality of the ceramic wafer 4 and the butt welding pad 6 can be effectively improved. In addition, through the operation of the first motor 202, torque can be transmitted to the driven turntable 512, which enables the ceramic wafer 4 and the butt welding pad 6 to rotate. By rotating the ceramic wafer 4 and the butt welding pad 6, the welding head 506 can weld the ceramic wafer 4 and the butt welding pad 6 without displacement at a fixed position, which effectively reduces the welding difficulty of the ceramic wafer 4 and the butt welding pad 6. In addition, after welding is completed, the first electric push rod 203 drives the suction cup assembly 3 to move downward. If the ceramic wafer 4 and the butt welding pad 6 are welded firmly, the displacement force of the first electric push rod 203 will cause the elastic seat 301 to displace inside the docking base 302 and stretch the pressure-sensitive spring 303 and the tension sensor 304. If the two are welded firmly, the value of the tension sensor 304 will continue to increase. If the welding is not firm, the ceramic wafer 4 will be separated from the butt welding pad 6 under the action of the tension, which will cause the value of the tension sensor 304 to increase first and then decrease. Through the above features, the staff only need to observe the value of the tension sensor 304 to judge the welding firmness of the ceramic wafer 4 and the butt welding pad 6. Since this detection process is within the welding step, when the welding is not firm, the equipment can quickly rework and weld again, which can avoid the cumbersome re-welding process.

[0025] In summary, for the welding auxiliary tooling of the ultrasonic probe, during use, first, the staff places the ceramic wafer 4 to be welded into the slot at the top of the lower positioning table 201, enabling the bottom end of the ceramic wafer 4 to be in contact with the first pneumatic suction cup 305. Since the size of the slot at the top of the lower positioning table 201 matches the outer contour size of the ceramic wafer 4, the first pneumatic suction cup 305 adsorbs the ceramic wafer 4 through its operation, achieving precise positioning of the first pneumatic suction cup 305 on the ceramic wafer 4. After the ceramic wafer 4 is positioned, the staff inserts the butt welding piece 6 with its pins facing up into the inner positioning sleeve 507 inside the upper docking table 501, enabling the butt welding piece 6 to be in contact with the second pneumatic suction cup 514. The limiting grooves 508 provided on both sides inside the inner positioning sleeve 507 can prevent the pins of the butt welding piece 6 from interfering with the inner positioning sleeve 507, and the butt welding piece 6 can be limited by placing the pins in the limiting grooves 508. In addition, since the outer contour of the butt welding piece 6 matches the contour size of the bottom opening of the inner positioning sleeve 507, when the second pneumatic suction cup 514 adsorbs the butt welding piece 6, the position accuracy of the butt welding piece 6 can be effectively guaranteed. Through the above design, the device can quickly achieve the position positioning and fixation of the ceramic wafer 4 and the butt welding piece 6; Then, after the ceramic wafer 4 and the butt welding piece 6 are placed, the second motor 205 drives the electric control lead screw 206 to rotate, enabling the lead screw slider 502 to drive the upper docking table 501 to move downward along the electric control lead screw 206. Since the outer contour size of the lower positioning table 201 matches the inner contour size of the upper docking table 501, the upper docking table 501 can be sleeved on the outer end of the lower positioning table 201. At this time, through the operation of the first electric push rod 203 and the third electric push rod 513, the ceramic wafer 4 and the butt welding piece 6 can be brought closer and in contact with each other. When the ceramic wafer 4 and the butt welding piece 6 are in contact, the first pneumatic suction cup 305 can displace itself at the outer end of the elastic seat 301 through reverse displacement and squeeze the pressure-sensitive spring 303 to make way. Through this way of making way, while ensuring the stable contact between the ceramic wafer 4 and the butt welding piece 6, it can avoid pressure damage. In addition, the pressure-sensitive spring 303 can judge whether the ceramic wafer 4 and the butt welding piece 6 are tightly pressed by sensing the pressure value. If the two are not firmly in contact due to the dimensional error between the ceramic wafer 4 and the butt welding piece 6, the first electric push rod 203 drives the ceramic wafer 4 to move upward, effectively ensuring that the two are in a tightly pressed state; After the ceramic wafer 4 and the butt welding piece 6 are closely attached, by the operation of the second electric push rod 504, the welding table 505 can drive the welding head 506 to displace in the direction of the inner positioning sleeve 507. After the welding table 505 is in complete contact with the inner positioning sleeve 507, the welding head 506 will exactly move to the joint of the ceramic wafer 4 and the butt welding piece 6. Since the position of the welding head 506 when the welding table 505 is in contact with the inner positioning sleeve 507 is fixed, and the extreme pushing position of the third electric push rod 513 is when the ceramic wafer 4 and the butt welding piece 6 are in the attached state, therefore, when adjusting the attachment stability of the ceramic wafer 4 and the butt welding piece 6, it is realized by the first electric push rod 203 driving the displacement of the ceramic wafer 4. In summary, since the displacement positions of the butt welding piece 6 and the welding head 506 remain unchanged all the time, after the welding head 506 moves, it can effectively ensure that it accurately moves to the welding point of the ceramic wafer 4 and the butt welding piece 6. Through this design, the positioning difficulty and required time of the ceramic wafer 4, the butt welding piece 6 and the welding head 506 can be greatly reduced, which can greatly improve the welding efficiency of the equipment; Subsequently, after the displacement of the welding head 506 is completed, the welding table 505 controls the operation of the welding head 506 to weld the ceramic wafer 4 and the butt welding piece 6. During the welding process, the suction pump 510 operates to pump out the air inside the lower positioning table 201 and the upper docking table 501. The docking port at the top of the gas transmission pump 511 can be connected to the argon gas cylinder. When the gas transmission pump 511 operates, it can input argon gas into the lower positioning table 201 and the upper docking table 501. After the lower positioning table 201 and the upper docking table 501 are sleeved, the ceramic wafer 4 and the butt welding piece 6 are in a closed space, which enables the argon gas to fill the internal space of the lower positioning table 201 and the upper docking table 501. Through argon gas protection, the welding quality of the ceramic wafer 4 and the butt welding piece 6 can be effectively improved. In addition, by the operation of the first motor 202, the torque can be transmitted to the driven turntable 512, which enables the ceramic wafer 4 and the butt welding piece 6 to rotate. By rotating the ceramic wafer 4 and the butt welding piece 6, the welding of the ceramic wafer 4 and the butt welding piece 6 can be realized without the displacement of the welding head 506 at the fixed position, which effectively reduces the welding difficulty of the ceramic wafer 4 and the butt welding piece 6; Finally, after the welding is completed, the first electric push rod 203 drives the suction cup assembly 3 to move downward. If the ceramic wafer 4 and the butt welding pad 6 are firmly welded, the displacement force of the first electric push rod 203 will cause the elastic seat 301 to displace inside the docking base 302 and stretch the pressure-sensitive spring 303 and the tension sensor 304. If the two are firmly welded, the value of the tension sensor 304 will continue to increase. If the welding is not firm, the ceramic wafer 4 will be shunted from the butt welding pad 6 under the action of the tension, which causes the tension sensor 304 to increase first and then decrease. Through the above characteristics, the staff only needs to observe the value of the tension sensor 304 to judge the welding firmness of the ceramic wafer 4 and the butt welding pad 6. Since this detection process is within the welding step, when the welding is not firm, the equipment can quickly rework and perform re-welding, which can eliminate the cumbersome re-welding process.

[0026] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to best explain the principles of the invention and its practical application, and to enable those of ordinary skill in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A welding auxiliary tooling for an ultrasonic probe, characterized in that: The invention comprises a welding base (1), a lower positioning component (2) and an upper positioning component (5), wherein the lower positioning component (2) is arranged on the outer side of the top of the welding base (1), and a suction cup component (3) is arranged inside the lower positioning component (2), and a ceramic chip (4) is arranged at the output end of the suction cup component (3), and the upper positioning component (5) is arranged on the outer side of the top of the lower positioning component (2), and the upper positioning component (5) comprises an upper docking platform (501) arranged above the positioning component (2), screw slides (502) are fixedly arranged on both sides of the outer side of the upper docking platform (501), and positioning frames (503) are symmetrically arranged at both ends of the outer side of the upper docking platform (501), and there are two positioning frames (503) in total, and a second electric push rod (504) is arranged on the inner side of each positioning frame (503), and a rectangular through-hole is opened at a portion of the docking platform (501) corresponding to the second electric push rod (504), and the first and second electric push rods (504) are connected to the upper and second electric push rods (504). The telescopic shaft ends of the two electric push rods (504) pass through the rectangular through-hole and are provided with a welding platform (505), and the inner side of the welding platform (505) is provided with a welding head (506), the interior of the upper docking platform (501) is provided with an inner positioning sleeve (507), and the inner two sides of the inner positioning sleeve (507) are provided with limiting grooves (508), the top two sides of the upper docking platform (501) are provided with connecting grooves (509), and the left side of the top of the upper docking platform (501) is provided with a connecting groove (509). A suction pump (510) is arranged on the side, an air delivery pump (511) is arranged on the top right end of the upper docking platform (501), a driven turntable (512) is arranged on the inner side of the top of the inner positioning sleeve (507), and a third electric push rod (513) is arranged on the bottom end of the driven turntable (512), a second air-controlled suction cup (514) is arranged on the telescopic shaft end of the third electric push rod (513), and a docking welding piece (6) is adsorbed on the bottom end of the second air-controlled suction cup (514).

2. The welding auxiliary tooling of an ultrasonic probe according to claim 1, characterized in that: The lower positioning assembly (2) comprises a lower positioning platform (201) fixedly connected to the top surface of the welding base (1); a first motor (202) is arranged at the bottom end of the interior of the lower positioning platform (201); and a first electric push rod (203) is arranged at the output shaft end of the first motor (202); a mounting seat (204) is symmetrically fixedly arranged on both sides of the exterior of the lower positioning platform (201); a second motor (205) is arranged at the bottom outer end of the mounting seat (204); and an electric control lead screw (206) is arranged at the output shaft end of the second motor (205).

3. The welding auxiliary tooling of an ultrasonic probe according to claim 2, characterized in that: The outer contour of the lower positioning platform (201) matches the inner contour size of the upper docking platform (501), and the vertical center line of the lower positioning platform (201) coincides with the vertical center line of the upper docking platform (501).

4. The welding auxiliary tooling of an ultrasonic probe according to claim 2, characterized in that: The second motor (205) drives the electrically controlled lead screw (206) to rotate, and the electrically controlled lead screw (206) drives the upper docking platform (501) to rise and fall via the lead screw slide (502).

5. The welding auxiliary tooling of an ultrasonic probe according to claim 2, characterized in that: The first motor (202) drives the first electric push rod (203) to rotate, and the first electric push rod (203) is fixedly connected to the suction cup assembly (3).

6. The welding auxiliary tooling of an ultrasonic probe according to claim 1, characterized in that: The suction cup assembly (3) comprises an elastic seat (301) fixedly connected to the telescopic end of the first electric push rod (203); a docking base (302) is arranged at the outer end of the elastic seat (301); a pressure-sensing spring (303) is arranged between the docking base (302) and the elastic seat (301); a tension sensor (304) is arranged at the middle end of the docking base (302) and the elastic seat (301); and a first air-controlled suction cup (305) is arranged at the top end of the docking base (302).

7. The welding auxiliary tooling of an ultrasonic probe according to claim 6, characterized in that: The elastic seat (301) is elastically connected to the pressure-sensitive spring (303), and the pressure-sensitive spring (303) is distributed in a ring shape inside the docking base (302).

8. The welding auxiliary tooling of an ultrasonic probe according to claim 6, characterized in that: The first air-controlled suction cup (305) is connected to the ceramic wafer (4) by adsorption, and the vertical center lines of the first air-controlled suction cup (305) and the second air-controlled suction cup (514) coincide with each other.

9. The welding auxiliary tooling of an ultrasonic probe according to claim 1, characterized in that: The upper docking platform (501) and the inner positioning sleeve (507) are integrated, and the welding platform (505) fits with the outer wall of the inner positioning sleeve (507) after translation.

10. The welding auxiliary tooling of an ultrasonic probe according to claim 1, characterized in that: The third electric push rod (513) is rotated by the driven rotating disk (512), and the vertical center line of the driven rotating disk (512) and the vertical center line of the inner positioning sleeve (507) coincide with each other.

Images