A welding method for micro thermocouple resistance welding

Abstract

The invention discloses a welding method for fine thermocouple resistance welding, which comprises the following steps: a. degreasing and cleaning a cylindrical hollow ceramic element; b. placing the ceramic element in a drying device for drying; c. sandblasting the welding surface; d. cold spraying the ceramic element and a metal column with powder; e. docking the ceramic element and the metal column; f. placing the docked workpiece in a heat treatment furnace for heat treatment, and then cooling and taking out the workpiece; the drying device comprises: a mounting block, which is configured to have a feeding cavity for conveying the ceramic element; a vertical rod, which is arranged in the feeding cavity; a wiper block, which is arranged on the vertical rod; a support plate, which is arranged in the feeding cavity; a support block, which is arranged at the bottom of the vertical rod; the support block is movably connected to the mounting block, and the support plate has at least a supporting state of fixing the vertical rod in the feeding cavity and a flipping state for allowing the ceramic element to be placed in the feeding cavity as the support block moves.

Description

Technical Field

[0001] The invention belongs to the technical field of thermocouple processing, and in particular relates to a welding method for micro thermocouple resistance welding. Background Art

[0002] Micro-thermocouples offer numerous advantages, including flexibility, high-pressure resistance, fast thermal response, and durability. Like industrial assembled thermocouples, they serve as temperature transmitters, typically used in conjunction with display instruments, recording instruments, and electronic regulators. They can also serve as the temperature sensing element of assembled thermocouples. They can directly measure the temperature of liquids, vapors, and gases, as well as solid surfaces, within a range of 0 to 800°C in various production processes. They are suitable for temperature measurement and control in confined and flexible environments.

[0003] There are multiple components inside the micro-thermocouple, among which the ceramic component and the metal component need to be welded together. The ceramic component is a cylindrical hollow structure, and the metal component needs to be inserted into it. The ceramic component needs to be cleaned before welding. Since the welding surface of the ceramic component is located in its hollow part, it is necessary to ensure that the welding surface is dry and tidy. However, generally, the ceramic components are placed in a dryer for drying after cleaning, which has low drying efficiency and does not have a good drying effect on the water droplets on the inner wall of the component. Summary of the Invention

[0004] The content of this application is used to briefly introduce concepts that will be described in detail in the detailed description section below. The content of this application is not intended to identify key features or essential features of the technical solution for which protection is sought, nor is it intended to limit the scope of the technical solution for which protection is sought.

[0005] In order to overcome the deficiencies of the prior art, the present invention provides a welding method for micro thermocouple resistance welding.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a welding method for micro-thermocouple resistance welding, comprising the following steps: a. degreasing and cleaning a cylindrical hollow ceramic element; b. placing the ceramic element in a drying device for drying; c. sandblasting the welding surface; d. cold spraying the ceramic element and the metal column with powder; e. butting the ceramic element and the metal column; f. placing the butted workpiece in a heat treatment furnace for heat treatment, and then cooling and removing the workpiece;

[0007] The drying equipment includes: a mounting block, which is constructed to have a feeding cavity for conveying ceramic elements; a vertical rod, which is arranged in the feeding cavity; a wiper block, which is arranged on the vertical rod; a support plate, which is arranged in the feeding cavity; and a support block, which is arranged at the bottom of the vertical rod; the support block is movably connected to the mounting block, and the support plate has at least a supporting state for fixing the vertical rod in the feeding cavity and a flipping state for allowing the ceramic elements to be placed in the feeding cavity as the support block moves.

[0008] Furthermore, the drying device also includes: a first movable plate, which is arranged on the wiper block; a water-absorbing cotton, which is arranged on the first movable plate; and a first annular groove for accommodating the first movable plate is provided on the wiper block.

[0009] Furthermore, the drying equipment also includes: a sealing ring for closing the first ring groove; a pressure plate for squeezing out the water flow on the absorbent cotton; a water diversion cavity is provided on the scraper block, a plurality of first through holes are provided on the first movable plate, and a plurality of second through holes are provided on the water diversion cavity.

[0010] Furthermore, a first slider is provided on the wiper block, and a first slide groove cooperating with the first slider is provided on the vertical rod; the drying equipment also includes: a fixed block, fixing the first slider to the bottom of the first slide groove; a first connecting rod, connected to the fixed block; and a first movable groove for the fixed block to move is provided on the vertical rod.

[0011] Furthermore, the drying equipment also includes: a first push rod, which is arranged on the fixed block; an electric push rod, which is used to drive the first push rod to move; and a first movable plate that moves into the first annular groove as the first push rod descends.

[0012] Furthermore, the drying equipment also includes: a second connecting rod, which is arranged on the sealing ring; a second push rod, which is movably connected to the second connecting rod; a third connecting rod, which is arranged on the pressure plate; and the second push rod is arranged above the third connecting rod.

[0013] Furthermore, the drying equipment also includes: a guide block, which is arranged on the wiper block; the guide block is a conical structure, and a first through cavity corresponding to the first slider is provided on the guide block; a plurality of first grooves are provided on the wiper block, and a first water supply cavity communicating with the water diversion cavity is provided at the bottom of the first groove.

[0014] Furthermore, the drying equipment also includes: a guide rod, arranged on the support plate; a first support spring, arranged at the bottom of the support plate; a discharge cavity is provided on the mounting block, the discharge cavity is provided at the bottom of the feed cavity, and a guide groove is provided at the top of the discharge cavity for the guide rod to move.

[0015] Furthermore, the drying equipment also includes: a connecting shaft, which is arranged on the support plate; a fixed plate, which fixes the support plate in a horizontal position; a first push block, which pushes the fixed plate to move away from the connecting shaft; and a second movable groove for accommodating the support plate is provided on the inner wall of the feeding cavity.

[0016] Furthermore, the drying equipment also includes: a second movable plate, arranged on the support block; a third push rod, arranged on the second movable plate; a second push block, pushing the second movable plate to move; when the second movable plate drives the third push rod to move, the fixed plate contacts the connecting shaft.

[0017] The invention is beneficial in that it provides a micro-thermocouple resistance welding method which can improve the drying effect of components and quickly dry the components. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of this application are used to provide a further understanding of this application and make other features, purposes and advantages of this application more apparent. The drawings and descriptions of the exemplary embodiments of this application are used to explain this application and do not constitute an improper limitation on this application.

[0019] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the elements and components are not necessarily drawn to scale.

[0020] In the attached figure:

[0021] Figure 1 Schematic diagram of the structure of a drying device according to an embodiment of the present invention.

[0022] Figure 2 for Figure 1 A cross-sectional view of the feed chamber of the drying device in the illustrated embodiment.

[0023] Figure 3 for Figure 1 Enlarged view of the wiper block of the drying device in the illustrated embodiment.

[0024] Figure 4 for Figure 1 An enlarged view of the limiting block of the drying device in the illustrated embodiment.

[0025] Figure 5 for Figure 1 An enlarged view of the support plate of the drying device in the illustrated embodiment.

[0026] Figure 6 for Figure 1 A cross-sectional view of the guide groove of the drying device in the illustrated embodiment.

[0027] Figure 7 for Figure 1 An enlarged view of the first push block of the drying device in the illustrated embodiment.

[0028] Figure 8 for Figure 1 A cross-sectional view of the guide block of the drying device in the illustrated embodiment.

[0029] Figure 9 for Figure 1 An enlarged view of the fixing block of the drying apparatus in the illustrated embodiment.

[0030] The meanings of the reference numerals in the figures are as follows:

[0031] 101. Mounting block; 102. Vertical rod; 103. Support block; 104. First support spring; 105. Wiper block; 105a. First groove; 106. Guide block; 107. First movable plate; 1071. First connecting plate; 108. Second movable block; 1081. Third support spring; 109. Fourth push rod; 110. Fifth push rod; 1101. Fourth connecting rod; 1102. Second return spring; 1103. Push plate; 111. Sealing ring; 1111. Second connecting rod; 1112. Second push rod; 1113. Second slider; 1114. Stop block; 1115. Fourth connecting spring; 1116. Second support spring; 1117. First movable block; 1118. First A return spring; 112, a pressure plate; 1121, a third connecting rod; 113, a fixed block; 1131, a first push rod; 1132, a first connecting rod; 1133, a connecting block; 1134, an electric push rod; 1135, a connecting column; 114, a water storage box; 115, a second movable plate; 1151, a second push block; 1152, a fourth supporting spring; 1153, a third push rod; 1154, a fifth connecting rod; 116, a supporting plate; 1161, a connecting shaft; 117, a fixed plate; 1171, a third return spring; 118, a second connecting plate; 1181, a fourth return spring; 119, a first push block; 1191, a fifth connecting spring; 120, a baffle; 1201, a sixth connecting spring. DETAILED DESCRIPTION

[0032] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments described herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are for illustrative purposes only and are not intended to limit the scope of protection of the present disclosure.

[0033] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0034] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0035] It should be noted that the modifications of "one" and "multiple" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, they should be understood as "one or more".

[0036] The names of the messages or information exchanged between multiple devices in the embodiments of the present disclosure are only used for illustrative purposes and are not used to limit the scope of these messages or information.

[0037] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0038] A method for resistance welding of micro-thermocouples comprises the following steps: a. degreasing and cleaning a cylindrical hollow ceramic element; b. placing the ceramic element in a drying device for drying; c. sandblasting the welding surface; d. cold spraying the ceramic element and a metal column with powder; e. butting the ceramic element and the metal column; and f. placing the butted workpiece in a heat treatment furnace for heat treatment, followed by cooling and removing the workpiece.

[0039] like Figure 1-9 As shown, the drying equipment includes a mounting block 101, a vertical rod 102, a wiper block 105, a support plate 116 and a support block 103; the mounting block 101 is constructed to have a feeding cavity for conveying ceramic elements; the vertical rod 102 is arranged in the feeding cavity; the wiper block 105 is arranged on the vertical rod 102; the support plate 116 is arranged in the feeding cavity; the support block 103 is arranged at the bottom of the vertical rod 102; the support block 103 is movably connected to the mounting block 101, and the support plate 116 has at least a supporting state for fixing the vertical rod 102 in the feeding cavity and a flipping state for placing the ceramic elements into the feeding cavity as the support block 103 moves.

[0040] After the ceramic element is cleaned, it is placed in the feeding cavity. At this time, the support block 103 is at the bottom of the vertical rod 102. The support block 103 provides support for the vertical rod 102. The vertical rod 102 is inserted into the ceramic element. The support plate 116 is in a flipped state. The ceramic element pushes the support plate 116 to flip, so that the ceramic element passes through the feeding cavity normally. When the ceramic element passes over the wiper block 105, the wiper block 105 scrapes off the water droplets on the inner wall of the ceramic element, so that the ceramic element is dried in the process of falling, and the drying of the ceramic element is completed quickly. When the ceramic element falls on the support block 103, The support plate 116 is in a supporting state, providing support force for the vertical rod 102. The ceramic element pushes the support block 103 to move downward. The support block 103 moves downward relative to the vertical rod 102, and the ceramic element is detached from the vertical rod 102 so that the dried ceramic element can be collected. The scraper block 105 is in contact with the inner wall of the entire ceramic element to effectively scrape off the water droplets on the inner wall of the ceramic element to ensure the drying effect of the ceramic element. The ceramic element passes through the first water transfer cavity by falling, directly completing the drying of the inner wall of the ceramic element, greatly improving the drying efficiency of the ceramic element.

[0041] The wiper block 105 is provided with a guide block 106, which is a conical structure and is arranged at the top of the wiper block 105. The wiper block 105 is a circular ring structure. The guide block 106 is provided with a first through cavity corresponding to the wiper block 105. The diameter of the first through cavity corresponds to the diameter of the guide rod. A first slider is provided on the inner wall of the wiper block 105, and a first slide groove corresponding to the first slider is provided on the vertical rod 102; a first annular groove is provided on the wiper block 105, and a first movable plate 107 is provided in the first annular groove. The first movable plate 107 is provided with absorbent cotton, and the absorbent cotton overflows from the first annular groove.

[0042] The guide block 106 guides the ceramic element, positions the center of the ceramic element, and makes the ceramic element fall downward in a vertical state so that the wiper block 105 can be used to dry the inner wall of the ceramic element; after the wiper block 105 contacts the inner wall of the ceramic element, the absorbent cotton contacts the inner wall of the ceramic element again, and the absorbent cotton is used to absorb the residual water droplets on the inner wall of the ceramic element, thereby further drying the ceramic element and improving the drying effect of the ceramic element; the setting of the first slider and the first slide groove makes the installation of the wiper block 105 and the vertical rod 102 more convenient, so that the wiper block 105 can be quickly removed to clean the wiper block 105 and the absorbent cotton.

[0043] A third movable groove is provided on the inner wall of the first annular groove, a first connecting plate 1071 is provided on the first movable plate 107, the first connecting plate 1071 is passed through the third movable groove, a first connecting spring is provided on the first connecting plate 1071, and one end of the first connecting spring is fixedly connected to the inner wall of the third movable groove; a fourth movable groove and a fifth movable groove are provided on the top of the first annular groove, the fifth movable groove is provided on the inner side of the fourth movable groove, a sealing ring 111 is provided in the fourth movable groove, a pressure plate 112 is provided in the fifth movable groove, and the pressure plate 112 is a circular ring structure; a water diversion chamber is provided on the wiper block 105, and the water diversion chamber is provided below the first annular groove, a plurality of first through holes are provided on the first movable plate 107, and a plurality of second through holes are provided on the water diversion chamber.

[0044] After the absorbent cotton absorbs a specified amount of water, the first connecting plate 1071 moves into the third movable groove, and the first connecting plate 1071 drives the first movable plate 107 to move into the first annular groove, and the absorbent cotton enters the first annular groove. The sealing ring 111 moves downward and enters the first annular groove to close the first annular groove, and the absorbent cotton moves to the bottom of the fifth movable groove, and the pressing plate 112 moves downward to squeeze the absorbent cotton, squeezing out the water on the absorbent cotton, and drying the absorbent cotton so that the absorbent cotton can continue to be used; the water squeezed out from the absorbent cotton flows through the first through hole and the second through hole into the water diversion cavity, and the water in the first annular groove is discharged; the first annular groove is closed by using the sealing ring 111 to prevent water droplets from spraying out of the first annular groove when the absorbent cotton is squeezed, thereby maintaining a dry environment in the feed cavity and improving the drying effect on the ceramic components.

[0045] A second connecting rod 1111 and a second connecting spring are provided on the sealing ring 111, and the top of the second connecting spring is fixedly connected to the top of the fourth movable groove, and a third connecting rod 1121 and a third connecting spring are provided on the top of the pressure plate 112, and the top of the third connecting spring is fixedly connected to the top of the fifth movable groove; a first movable cavity is provided on the wiper block 105, and the first movable cavity is provided above the fourth movable groove and the fifth movable groove, and the second connecting rod 1111 and the third connecting rod 1121 are passed through the first movable cavity, and a second push rod 1112 is provided on the second connecting rod 1111, and the second push rod 1112 is provided above the third connecting rod 1121, and a second slider 1113 is provided at one end of the second push rod 1112, and a second sliding groove matching the second slider 1113 is provided on the second connecting rod 1111, and the second slider 1113 A second supporting spring 1116 is provided at the bottom; a sixth movable groove is provided on the second slider 1113, a limit block 1114 is provided in the sixth movable groove, a fourth connecting spring 1115 is provided on the side wall of the limit block 1114, and one end of the fourth connecting spring 1115 is fixedly connected to the inner wall of the sixth movable groove; a limit groove matching the limit block 1114 is provided on the inner wall of the second slide groove; a seventh movable groove is provided at the bottom of the second push rod 1112, a first movable block 1117 is provided in the seventh movable groove, an inclined surface is provided at the bottom of the first movable block 1117, a first return spring 1118 is provided on the side wall of the first movable block 1117, and one end of the first return spring 1118 is against the inner wall of the seventh movable groove; a first connecting rope is provided on the first movable block 1117, and one end of the first connecting rope is fixedly connected to the limit block 1114.

[0046] The bottom of the third movable groove is provided with an eighth movable groove, and a second movable block 108 is provided in the eighth movable groove, and a third supporting spring 1081 is provided at the bottom of the second movable block 108, and a second connecting rope is provided on the second movable block 108, and one end of the second connecting rope is fixedly connected to one end of the first connecting plate 1071; the top of the third movable groove is provided with a second through cavity, and a fourth push rod 109 is provided in the second through cavity, and a third sliding block is provided on the side wall of the fourth push rod 109, and a third sliding groove cooperating with the third sliding block is provided on the inner wall of the second through cavity. The fifth push rod 110 is passed through the first movable cavity, and the fourth push rod 109 is provided with a ninth movable groove, and the bottom end of the fifth push rod 110 is provided with a fourth connecting rod 1101, and the fourth connecting rod 1101 is passed through the ninth movable groove, and a second return spring 1102 is provided at the bottom of the fourth connecting rod 1101, and the bottom end of the second return spring 1102 is against the ninth movable groove; a push plate 1103 is provided on the side wall of the fifth push rod 110, and the push plate 1103 is provided above the second push rod 1112.

[0047] A first movable groove is provided on the vertical rod 102, a connecting column 1135 is provided in the first movable groove, a fixed block 113 is provided on the connecting column 1135, a first connecting rod 1132 is provided on the fixed block 113, a connecting block 1133 is provided on the first connecting rod 1132, a first cavity for accommodating the first connecting rod 1132 and the connecting block 1133 is provided on the vertical rod 102, a mounting cavity is provided on the connecting block 1133, a tenth movable groove is provided on the fixed block 113, a first push rod 1131 is provided in the tenth movable groove, an electric push rod 1134 is provided in the mounting cavity, the first push rod 1131 is provided on the piston rod of the electric push rod 1134; an indicating groove is provided on the top of the first connecting rod 1132, and the top of the first connecting rod 1132 is exposed from the first cavity.

[0048] When installing the wiper block 105, the fixed block 113 is staggered with the first chute, and the first slider is directly installed in the first chute, and the first slider is pushed to the bottom of the first chute, and the first connecting rod 1132 is rotated to turn the fixed block 113 into the first chute, and the position of the fixed block 113 is determined by the indicator groove. The fixed block 113 moves to the top of the first slider to fix the first slider at the bottom of the first chute; when the water flow on the absorbent cotton is squeezed out, the electric push rod 1134 drives the first push rod 1131 to move downward, and the first push rod 1131 is at the top of the fifth push rod 110 , the first push rod 1131 pushes the fifth push rod 110 to move downward, the fourth push rod 109 moves with the fifth push rod 110 to push the second movable block 108 to move, the second connecting rope pulls the first connecting plate 1071 to move into the third movable groove, the first movable plate 107 drives the absorbent cotton into the first ring groove, the second movable block 108 moves to the bottom of the eighth movable groove and cannot move further, the fifth push rod 110 moves relative to the fourth push rod 109, the push plate 1103 moves to the top of the second push rod 1112 to push the second push rod 1112 to move, and the second push rod 11 12 drives the second connecting rod 1111 to descend together, the sealing plate moves out of the fourth movable groove and enters the first annular groove to close the first annular groove. At this time, the limit block 1114 is inserted into the limit groove to make the second push rod 1112 and the second connecting rod 1111 move together; when the second push rod 1112 moves to the top of the third connecting rod 1121, the inclined surface at the bottom of the first movable block 1117 is against the third connecting rod 1121, and the first movable block 1117 moves in the seventh movable groove under the action of the third connecting rod 1121, and the first connecting rope pulls the limit block 1114 from the limit The absorbent cotton is moved out of the groove, the sealing ring 111 is against the bottom of the first ring groove, the second push rod 1112 moves downward relative to the second connecting rod 1111, the second push rod 1112 pushes the third connecting rod 1121 to move, and the pressing plate 112 moves downward to squeeze the absorbent cotton, so as to squeeze out the moisture in the absorbent cotton and make the absorbent cotton able to be used continuously; through the setting of the fifth push rod 110 and the second push rod 1112, the movement of the first movable plate 107, the sealing ring 111 and the pressing plate 112 are controlled in sequence so as to collect the squeezed water flow into the water diversion cavity and keep the dryness of the feed cavity.

[0049] The wiper block 105 is provided with a plurality of first grooves 105a, and a first water delivery cavity communicating with the water diversion cavity is provided at the bottom of the first grooves 105a. When the ceramic element moves toward the bottom of the delivery cavity, it first contacts the first grooves 105a at the top of the wiper block 105. The first grooves 105a are used to guide the water flow scraped off the ceramic element into the first water delivery cavity. The water flow eventually flows into the water diversion cavity, cleaning the water droplets on the surface of the wiper block 105, thereby ensuring that the wiper block 105 has a drying effect on the ceramic element.

[0050] The mounting block 101 is provided with a discharge chamber, which is provided at the bottom of the feed chamber, a guide rod is provided on the support block 103, and a guide groove for the movement of the guide rod is provided at the top of the discharge chamber, a first support spring 104 is provided at the bottom of the support block 103, and the guide rod is provided with a fourth slider, and a fourth slide groove matching the fourth slider is provided on the inner wall of the guide groove; after the ceramic element falls onto the support block 103, the support plate 116 is in a supporting state, and the ceramic element pushes the support block 103 to move downward, and the support block 103 squeezes the first support spring 104, and the ceramic element moves into the storage chamber, and the ceramic element is pushed out of the storage chamber by an external cylinder or other driving member to collect the dried ceramic elements; the first support spring 104 pushes the support block 103 to move upward, and the support block 103 moves back to the bottom of the vertical rod 102 to complete the resetting of the support block 103.

[0051] A second movable groove is provided on the inner wall of the feeding cavity, and the support plate 116 is in the second movable groove. A connecting shaft 1161 is provided on the support plate 116, and the connecting shaft 1161 is rotatably connected to the second movable groove. A torsion spring is provided on the connecting shaft 1161, so that the support plate 116 is in a horizontal state when it is not under force; a second annular groove corresponding to the support plate 116 is provided on the vertical rod 102; an eleventh movable groove is provided on the side wall of the second movable groove, and a fixed plate 117 is provided in the eleventh movable groove, and a third return spring 1171 is provided on the side wall of the fixed plate 117, and one end of the third return spring 1171 rests on the inner wall of the eleventh movable groove; a thirteenth movable groove is provided on the inner wall of the guide groove, and a second connecting plate 118 connected to the fixed plate 117 is provided in the thirteenth movable groove, and a fourth return spring 1181 is provided on the side wall of the second connecting plate 118; a twelfth movable groove is provided on the side wall of the guide rod, and a first push block 1 is provided in the twelfth movable groove 19. A fifth connecting spring 1191 is provided on the side wall of the first push block 119; a second movable cavity is provided on the support block 103, a second movable plate 115 is provided in the second movable cavity, a second push block 1151 is provided on the second movable plate 115, the second push block 1151 passes through the top of the second movable cavity, a fourth supporting spring 1152 is provided at the bottom of the second movable plate 115, a connecting cavity connecting the second movable cavity and the second movable groove is provided on the guide rod, a third push rod 1153 is provided on the second movable plate 115, a fifth connecting rod 1154 is hinged on the third push rod 1153, and one end of the fifth connecting rod 1154 is hinged on the first push block 119; a fourteenth movable groove is provided on the top of the guide rod, the fourteenth movable groove is passed through the twelfth movable groove, a baffle 120 is provided in the fourteenth movable groove, a sixth connecting spring 1201 is provided at the bottom of the baffle 120, and a through groove for the first push block 119 to pass through is provided on the baffle 120.

[0052] Before the ceramic element is placed in the feeding cavity, the second push block 1151 extends from the second movable cavity, and the fifth connecting rod 1154 pushes the first push block 119 to extend from the twelfth movable groove. The first push block 119 pushes the second connecting plate 118 to move, and the second connecting plate 118 drives the fixed plate 117 to move, and the fixed plate 117 moves away from the connecting shaft 1161; the ceramic element is placed in the feeding cavity and pushes the support plate 116 to rotate, and the support plate 116 flips into the first movable groove to make the ceramic element fall down. When the ceramic element falls onto the support block 103, it pushes the second push block 1151 to move, and the second push block 1151 drives the second movable plate 115 to move downward. The fifth connecting rod 1154 pulls the first push block 119 to move into the twelfth movable groove, and the baffle 120 extends from the fourteenth movable groove, and the through groove is staggered with the first push block 119. The first push block 119 is against the baffle 120 On; the fourth return spring 1181 pushes the second connecting plate 118 to move, the fixed plate 117 contacts the connecting shaft 1161 to fix the connecting shaft 1161, the support plate 116 rests on the top of the second annular groove to provide support force for the vertical rod 102, and the ceramic element pushes the support block 103 to move downward, and the ceramic element moves into the discharge chamber; after the ceramic element is pushed out from the support block 103, the first support spring 104 pushes the support block 103 to move upward, and when the guide rod moves to the top of the guide groove, the baffle 120 rests on the top of the guide groove, and the baffle 120 moves to the bottom of the fourteenth movable groove, and the through groove moves to the side of the first push block 119, and the fifth connecting spring 1191 pushes the first push block 119 out of the twelfth movable groove, and the first push block 119 pushes the second connecting plate 118 to move, and the fixed plate 117 is disengaged from the connecting shaft 1161 again, so that a new ceramic element can be placed in the feed chamber.

[0053] The support block 103 is provided with a second groove corresponding to the vertical rod 102. When the support block 103 is at the bottom of the vertical rod 102, the vertical rod 102 is inserted into the second groove. The second groove is used to increase the matching effect between the vertical rod 102 and the support block 103, thereby ensuring the supporting and fixing effect of the support block 103 on the vertical rod 102.

[0054] A second cavity is provided on the vertical rod 102, and a water storage box 114 is provided in the second cavity. A second water transfer cavity communicating with the second cavity is provided at the bottom of the first chute, and a third water transfer cavity communicating with the second water transfer cavity is provided at the bottom of the water diversion cavity. The water in the water diversion cavity flows through the second water transfer cavity and the third water transfer cavity into the water storage box 114, and the water droplets scraped from the ceramic element are collected. The vertical rod 102 can be directly taken out of the feed cavity, and then the water storage box 114 can be taken out to pour out the collected water droplets, making the use of the device more convenient.

[0055] The above description is only an illustration of some preferred embodiments of the present disclosure and the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with (but not limited to) technical features with similar functions disclosed in the embodiments of the present disclosure.

Claims

1. A welding method for micro thermocouple resistance welding, characterized in that: The following steps are involved: a. Degrease and clean the cylindrical hollow ceramic components; b. Place the ceramic components in a drying device for drying; c. Sandblast the welding surface; d. Use powder to cold spray the ceramic components and metal columns; e. Connect the ceramic element and the metal column; f. Place the docked workpiece into a heat treatment furnace for heat treatment, then cool and take out the workpiece; The drying equipment comprises: The mounting block is configured to have a feeding cavity for feeding the ceramic element; A vertical rod is provided in the feeding cavity; a wiper block, provided on the vertical rod; A support plate is provided in the feeding cavity; A support block is provided at the bottom of the vertical rod; The support block is movably connected to the mounting block, and the support plate has at least a supporting state for fixing the vertical rod in the feeding cavity and a flipping state for allowing the ceramic element to be placed in the feeding cavity as the support block moves; The drying equipment also includes: A connecting shaft is provided on the support plate; A fixing plate, fixing the support plate in a horizontal position; a first pushing block, for pushing the fixing plate to move away from the connecting shaft; A second movable groove for accommodating the support plate is provided on the inner wall of the feeding cavity; The drying equipment also includes: a second movable plate, disposed on the support block; a third push rod, provided on the second movable plate; A second pushing block pushes the second movable plate to move; When the second movable plate drives the third push rod to move, the fixed plate contacts the connecting shaft.

2. The welding method for micro thermocouple resistance welding according to claim 1, characterized in that: The drying equipment also includes: A first movable plate is provided on the wiper block; Water-absorbing cotton, arranged on the first movable plate; The wiper block is provided with a first annular groove for accommodating the first movable plate.

3. The welding method for micro-thermocouple resistance welding according to claim 2, characterized in that: The drying equipment also includes: a sealing ring, used for sealing the first ring groove; A pressing plate squeezes out the water from the absorbent cotton; The wiper block is provided with a water diversion cavity, the first movable plate is provided with a plurality of first through holes, and the water diversion cavity is provided with a plurality of second through holes.

4. The welding method for micro-thermocouple resistance welding according to claim 3, characterized in that: The wiper block is provided with a first slider, and the vertical rod is provided with a first chute matched with the first slider; the drying device further includes: A fixing block, fixing the first sliding block to the bottom of the first sliding groove; a first connecting rod connected to the fixing block; The vertical rod is provided with a first movable groove for the fixed block to move.

5. The micro-thermocouple resistance welding method according to claim 4, characterized in that: The drying equipment also includes: A first push rod is provided on the fixed block; An electric push rod, used for driving the first push rod to move; The first movable plate moves into the first annular groove as the first push rod descends.

6. The welding method for micro-thermocouple resistance welding according to claim 3, characterized in that: The drying equipment also includes: a second connecting rod, disposed on the sealing ring; a second push rod, movably connected to the second connecting rod; a third connecting rod, provided on the pressing plate; The second push rod is arranged above the third connecting rod.

7. The micro-thermocouple resistance welding method according to claim 3, characterized in that: The drying equipment also includes: A guide block, provided on the wiper block; The guide block is a conical structure, and is provided with a first through cavity corresponding to the wiper block; the wiper block is provided with a plurality of first grooves, and a first water delivery cavity communicating with the water diversion cavity is provided at the bottom of the first groove.

8. The micro-thermocouple resistance welding method according to claim 1, wherein: The drying equipment also includes: A guide rod, provided on the support block; a first support spring, disposed at the bottom of the support block; A discharge cavity is provided on the mounting block, the discharge cavity is provided at the bottom of the feeding cavity, and a guide groove for the guide rod to move is provided on the top of the discharge cavity.

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