CN218214846U - Welding device for piezoresistor - Google Patents
Welding device for piezoresistor Download PDFInfo
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- CN218214846U CN218214846U CN202222054988.2U CN202222054988U CN218214846U CN 218214846 U CN218214846 U CN 218214846U CN 202222054988 U CN202222054988 U CN 202222054988U CN 218214846 U CN218214846 U CN 218214846U
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- welded
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Abstract
The utility model discloses a welding device of a piezoresistor, which comprises a lower die assembly and an upper die assembly; the lower die assembly is provided with a first heating element, the upper end of the first heating element is provided with a welding cavity for positioning a part to be welded, and the part to be welded in the welding cavity can be preheated through the first heating element; the upper die assembly is located above the lower die assembly, a second heating element matched with the welding cavity is arranged at the lower end of the upper die assembly, and the to-be-welded parts in the welding cavity can be welded through the second heating element. This application has realized waiting preheating and welding integration to an equipment of welding, need not shift among the welding process and waits to weld, is convenient for to treat the temperature of welding and controls, and can be to the technological effect of welding face bulk heating, has solved among the correlation technique because treat that the welding need shift to the welding position after preheating, leads to treating the temperature control of welding comparatively difficult, the lower problem of production efficiency.
Description
Technical Field
The utility model relates to an electronic component welds technical field, concretely relates to welding set of piezoresistor.
Background
At present, the welding procedure of the piezoresistor adopts manual soldering iron welding, the lightning protection piezoresistor is preheated firstly, then soldering tin is uniformly coated on a chip of the lightning protection piezoresistor by using the soldering iron, then a metal and plastic part combined electrode is covered on the position of the lightning protection piezoresistor where the soldering tin is coated, and finally the metal and the chip are welded by using the soldering iron to form a welding part. At present, the preheating and the welding of a to-be-welded part are respectively carried out by two devices, and the to-be-welded part needs to be transferred after the preheating is finished, so that the temperature control of the to-be-welded part is difficult, and the production efficiency is low.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model provides a welding set of piezoresistor to because treat in the solution correlation technique that the welding piece need shift to the welding position after preheating, lead to treating the temperature control of welding comparatively difficult, the lower problem of production efficiency.
The technical scheme of the utility model is specifically as follows:
a welding apparatus for piezoresistors, comprising: a lower die assembly and an upper die assembly; wherein, the first and the second end of the pipe are connected with each other,
the lower die assembly is provided with a first heating element, the upper end of the first heating element is provided with a welding cavity for positioning a part to be welded, and the part to be welded in the welding cavity can be preheated through the first heating element;
the upper die assembly is located above the lower die assembly, a second heating element matched with the welding cavity is arranged at the lower end of the upper die assembly, and the to-be-welded parts in the welding cavity can be welded through the second heating element.
Preferably, the upper die assembly is drivable to move linearly towards or away from the lower die assembly.
Preferably, the temperature control device further comprises a temperature control module and a temperature measuring couple, wherein the temperature control module is electrically connected with the first heating element and the second heating element and is used for controlling the heating time and the heating temperature of the first heating element and the second heating element;
the temperature measuring galvanic couple is arranged on the first heating element and the second heating element and is electrically connected with the temperature control module.
Preferably, the welding device further comprises a time control relay, wherein the time control relay is configured to be triggered when a second heating element on the upper die assembly is in contact with a part to be welded, the contact time of the second heating element and the part to be welded is monitored, and an alarm is given when a set threshold value is exceeded;
the time control relay is electrically connected with the temperature control module.
Preferably, the upper die assembly comprises a die shank and an upper die base;
the lower end of the die handle is fixedly connected with the upper die base, and the second heating element is fixedly arranged at the lower end of the upper die base.
Preferably, a first upper heat insulation piece is arranged between the upper die holder and the second heating element;
the upper die assembly further comprises a second upper thermal insulation piece arranged around the upper die base and the second heating element in the circumferential direction.
Preferably, the first upper thermal insulation member and the second upper thermal insulation member are both made of asbestos.
Preferably, the die handle is in transmission connection with the output end of the linear driving mechanism, and the linear driving mechanism drives the die handle to move linearly up and down.
Preferably, the lower die assembly comprises a lower die base, the first heating element is fixedly arranged on the lower die base, and a first lower heat insulation piece is arranged between the first heating element and the lower die base;
and a second lower heat insulation piece is arranged around the lower die holder and the first heating element in the circumferential direction.
Preferably, the first lower thermal insulation member and the second lower thermal insulation member are asbestos.
In the embodiment, the lower die assembly and the upper die assembly are arranged; the lower die assembly is provided with a first heating element, the upper end of the first heating element is provided with a welding cavity for positioning a part to be welded, and the part to be welded in the welding cavity can be preheated through the first heating element; go up the mould subassembly and be located the top of lower mould subassembly, the lower extreme of going up the mould subassembly be provided with weld chamber complex second heating element, can weld the welding piece of treating in the weld chamber through second heating element, reached and to have waited the welding piece and place in the weld chamber of first heating element and preheat, move down the second heating element that makes to be located last mould subassembly lower extreme and the face of weld contact of waiting to weld and carry out the welded purpose along with controlling promptly after preheating, realized waiting to weld preheating and welding integration to an equipment, the welding process need not shift and wait to weld the piece, be convenient for control the temperature of treating the welding piece, and can be to the technological effect of welding face bulk heating, solved in the correlation technique because wait to weld the piece and need shift to the welding position after preheating, lead to the temperature control that the welding piece was treated comparatively difficult, the lower problem of production efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
in the attached drawing, 1 die shank, 2 upper screws, 3 upper die holders, 4 first upper heat insulation pieces, 5 second upper heat insulation pieces, 6 second heating elements, 7 first heating elements, 8 lower die holders, 9 second lower heat insulation pieces, 10 lower screws, 11 first lower heat insulation pieces, 12 welding cavities, 13 upper die assemblies and 14 lower die assemblies.
Detailed Description
In order to make the technical solutions of the present application better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the accompanying drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used.
In this application, the terms "upper", "lower", "inside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "disposed," "provided," "connected," "secured," and the like are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.
In addition, the term "plurality" shall mean two as well as more than two.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1, the present embodiment provides a welding apparatus for a varistor, comprising: a lower die assembly 14 and an upper die assembly 13; wherein the content of the first and second substances,
a first heating element 7 is arranged on the lower die assembly 14, a welding cavity 12 for positioning a part to be welded is formed in the upper end of the first heating element 7, and the part to be welded in the welding cavity 12 can be preheated through the first heating element 7;
the upper die assembly 13 is positioned above the lower die assembly 14, the lower end of the upper die assembly 13 is provided with a second heating element 6 matched with the welding cavity 12, and a part to be welded in the welding cavity 12 can be welded through the second heating element 6.
In the present embodiment, the welding device is mainly composed of an upper part and a lower part, wherein the upper part is an upper die assembly 13 capable of moving linearly, and the lower part is a fixed lower die assembly 14. The main structure of the lower die assembly 14 is a first heating element 7, the first heating element 7 is made of a material with good thermal conductivity, and heat transfer devices such as heating wires and heat transfer oil can be arranged in the lower die assembly. When the electric heating wire is used, the heating temperature and the heating time can be controlled by an external controller, so that the whole first heating element 7 has the required temperature. In order to facilitate preheating and positioning of the to-be-welded part, the first heating element 7 is provided with a welding cavity 12, and the size of the welding cavity 12 can be matched with that of the to-be-welded part, i.e. the specific structure of the welding cavity 12 is designed according to the structure of the to-be-welded part. The overall depth of the welding chamber 12 is greater than the depth of the parts to be welded, so that the parts to be welded can fall completely into the welding chamber 12, and the parts to be welded are preheated uniformly by the first heat-generating element 7. The upper mold assembly 13 is located above the lower mold assembly 14, the main structure is the second heating element 6, and the structural principle of the second heating element 6 is similar to that of the first heating element 7, and the second heating element 6 can be electrically controlled to generate heat. The lower end of the second heating element 6 has a protruding welding portion which is synchronously heated to a welding temperature when the second heating element 6 generates heat. The weld may be driven to extend into the weld chamber 12 to weld the part to be welded within the weld chamber 12.
The welding set in this embodiment adopts controllable formula heating for welding temperature, time are controllable, and treat preheating and welding that the welding piece all is located the welding chamber 12 of first heating element 7, can treat the face of weld bulk heating, improve the reliability of product, and need not shift in whole welding process and treat the welding piece, improved product welding performance and production efficiency, it is comparatively difficult to solve the temperature control of treating the welding piece, production efficiency is lower, the problem of welding back product performance variation.
During welding, the welding part of the second heating element 6 is required to be pressed down on the part to be welded, so that the upper die assembly 13 in the embodiment can be driven to move linearly towards or away from the lower die assembly 14, the driving mode can be an electric cylinder, the automation degree of welding is increased, and the welding process is controllable.
In order to control the temperature and time of the first heating element 7 and the second heating element 6, the welding device in this embodiment further includes a temperature control module and a temperature measuring couple, where the temperature control module is electrically connected to the first heating element 7 and the second heating element 6, and can control the heating temperature and time of the heating wires in the first heating element 7 and the second heating element 6, and further control the heating time and heating temperature of the first heating element 7 and the second heating element 6.
The temperature measuring couples are arranged on the first heating element 7 and the second heating element 6, the temperatures of the first heating element 7 and the second heating element 6 can be monitored in real time, the temperature measuring couples are electrically connected with the temperature control module, and the temperature control module can further control the temperatures of the first heating element 7 and the second heating element 6 according to temperature information acquired by the temperature measuring couples.
In addition to the welding temperature, the welding time is also an important factor for ensuring the welding effect. Therefore, the welding device in this embodiment is for precisely controlling the welding time, and further comprises a time control relay, wherein the time control relay is configured to be triggered when the second heating element 6 on the upper die assembly 13 contacts with the workpiece to be welded, and monitor the contact time of the second heating element 6 with the workpiece to be welded, and alarm when the contact time exceeds a set threshold; the time control relay is electrically connected with the temperature control module.
Specifically, when the second heating element 6 is driven to move downwards to contact with a to-be-welded part, a switch of the time control relay is triggered, an electric signal is sent to the time control relay, when the contact time reaches the time preset by the time control relay, the time control relay gives an alarm to remind of the welding time and the welding time is reached, and time control is achieved.
As shown in fig. 1, the present embodiment specifically describes the structures of the upper die assembly 13 and the lower die assembly 14:
preferably, the upper die assembly 13 comprises a die shank 1 and an upper die base 3; the lower end of the die handle 1 is fixedly connected with the upper die base 3, the second heating element 6 is fixedly arranged at the lower end of the upper die base 3 and can be connected through the upper screw 2, the die handle 1 can be in transmission connection with the output end of the linear driving mechanism, for example, the output end of the linear driving mechanism is in transmission connection with a piston rod of an electric cylinder, the height adjustment of the upper die base 3 and the second heating element 6 is realized through the die handle 1, and the second heating element 6 can be in contact with a welding surface of a part to be welded.
Since the welding type second heating element 6 has a higher temperature, in order to improve the stability of the product, the first upper heat insulation member 4 is arranged between the upper die base 3 and the second heating element 6; similarly, in order to avoid the second heating element 6 from damaging the operator, the upper die assembly 13 further includes a second upper heat insulation member 5 surrounding the periphery of the upper die base 3 and the second heating element 6. The first upper heat insulation part 4 and the second upper heat insulation part 5 are both made of materials with good heat insulation and heat preservation effects, and specifically, the first upper heat insulation part 4 and the second upper heat insulation part 5 are both made of asbestos.
The lower die assembly 14 is identical to the upper die assembly 13 in design, specifically, the lower die assembly 14 comprises a lower die base 8, the first heating element 7 is fixedly arranged on the lower die base 8 and can be connected through a lower screw 10, and a first lower heat insulation piece 11 is arranged between the first heating element 7 and the lower die base 8; a second lower thermal insulation 9 is arranged around the circumference of the lower die holder 8 and the first heat generating element 7. The first lower thermal insulation 11 and the second lower thermal insulation 9 are both asbestos.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (10)
1. A welding device for a piezoresistor is characterized by comprising: a lower die assembly and an upper die assembly; wherein the content of the first and second substances,
the lower die assembly is provided with a first heating element, the upper end of the first heating element is provided with a welding cavity for positioning a part to be welded, and the part to be welded in the welding cavity can be preheated through the first heating element;
the upper die assembly is located above the lower die assembly, a second heating element matched with the welding cavity is arranged at the lower end of the upper die assembly, and the to-be-welded parts in the welding cavity can be welded through the second heating element.
2. The welding apparatus for piezoresistors according to claim 1, wherein the upper die assembly is linearly movable toward or away from the lower die assembly in a driven manner.
3. The welding device for the piezoresistor according to claim 1, further comprising a temperature control module and a temperature measuring couple, wherein the temperature control module is electrically connected with the first heating element and the second heating element and is used for controlling the heating time and the heating temperature of the first heating element and the second heating element;
the temperature measuring galvanic couple is arranged on the first heating element and the second heating element and is electrically connected with the temperature control module.
4. The welding device of the piezoresistor according to claim 3, further comprising a time control relay, wherein the time control relay is configured to be triggered when a second heating element on the upper die assembly is contacted with the workpiece to be welded, and the contact time of the second heating element and the workpiece to be welded is monitored, and an alarm is given when a set threshold value is exceeded;
the time control relay is electrically connected with the temperature control module.
5. The welding device for piezoresistors according to any one of claims 1 to 4, wherein the upper die assembly comprises a die shank and an upper die base;
the lower end of the die handle is fixedly connected with the upper die base, and the second heating element is fixedly arranged at the lower end of the upper die base.
6. The welding device for piezoresistors according to claim 5, wherein a first upper thermal insulator is arranged between the upper die base and the second heating element;
the upper die assembly further comprises a second upper heat insulation piece arranged around the upper die base and the circumference of the second heating element.
7. The welding device for piezoresistors according to claim 6, wherein the first upper thermal insulation member and the second upper thermal insulation member are each provided as asbestos.
8. The welding device for piezoresistors, according to claim 5, wherein the die shank is connected with the output end of the linear driving mechanism in a transmission way, and the linear driving mechanism drives the die shank to move linearly up and down.
9. The welding device for the piezoresistor according to claim 8, wherein the lower die assembly comprises a lower die base, the first heating element is fixedly arranged on the lower die base, and a first lower heat insulation piece is arranged between the first heating element and the lower die base;
and a second lower heat insulation piece is arranged around the lower die holder and the first heating element in the circumferential direction.
10. The welding apparatus for piezoresistors according to claim 9, wherein the first lower thermal insulator and the second lower thermal insulator are both asbestos.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222054988.2U CN218214846U (en) | 2022-08-05 | 2022-08-05 | Welding device for piezoresistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222054988.2U CN218214846U (en) | 2022-08-05 | 2022-08-05 | Welding device for piezoresistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218214846U true CN218214846U (en) | 2023-01-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222054988.2U Active CN218214846U (en) | 2022-08-05 | 2022-08-05 | Welding device for piezoresistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218214846U (en) |
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2022
- 2022-08-05 CN CN202222054988.2U patent/CN218214846U/en active Active
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