阅读说明：本技术 一种电容器芯子与引线的自动穿芯焊接工艺 (Automatic core-penetrating welding process for capacitor core and lead ) 是由 伍凯锋 于 2021-07-07 设计创作，主要内容包括：本公开了本发明公开了一种电容器芯子与引线的自动穿芯焊接工艺,包括以下步骤：在预设工位上准备长引线、短引线以及电容器芯子；将长引线两端的线皮去除,并让两端线皮去除后的长引线一端穿过水平放置的待焊接的电容器芯子；将长引线穿过电容器芯子中心孔的一端折弯,使长引线折弯的一端与电容器芯子的第一端抵接；将长引线折弯的一端与电容器芯子的第一端焊接；将短引线两端的线皮去除,并让两端线皮去除后的短引线按垂直于电容器芯子中心孔的轴线方向输送,使短引线的一端与电容器芯子的第二端抵接；将短引线与电容器芯子抵接的一端焊接在电容器芯子的第二端上。本发明的电容器芯子与引线的自动穿芯焊接工艺,其能提高工作效率,保证产品质量。(The invention discloses an automatic core-penetrating welding process of a capacitor core and a lead, which comprises the following steps: preparing a long lead, a short lead and a capacitor core on a preset station; removing the wire skins at the two ends of the long lead, and enabling one end of the long lead with the wire skins at the two ends removed to penetrate through a capacitor core to be welded which is horizontally placed; bending one end of the long lead penetrating through the center hole of the capacitor core, and enabling the bent end of the long lead to be abutted against the first end of the capacitor core; welding one end of the bent long lead with the first end of the capacitor core; removing the wire skins at the two ends of the short lead, and conveying the short lead with the wire skins at the two ends removed in the direction perpendicular to the axis of the central hole of the capacitor core to enable one end of the short lead to be abutted against the second end of the capacitor core; and welding one end of the short lead abutted to the capacitor core on the second end of the capacitor core. The automatic core-penetrating welding process of the capacitor core and the lead wire can improve the working efficiency and ensure the product quality.)

1. An automatic core-penetrating welding process for a capacitor core and a lead is characterized by comprising the following steps:

preparing materials: preparing a long lead, a short lead and a capacitor core on a preset station;

stripping a long lead wire and threading the lead wire: removing wire skins at two ends of the long lead, and enabling one end of the long lead with the wire skins at the two ends removed to penetrate through a center hole of a capacitor core to be welded which is horizontally placed;

bending: bending one end of the long lead penetrating through the center hole of the capacitor core, and enabling the bent end of the long lead to be abutted against the first end of the capacitor core;

and (3) long lead welding: welding one end of the bent long lead with the first end of the capacitor core;

stripping and conveying short lead wires: removing the wire skins at the two ends of the short lead, and conveying the short lead with the wire skins at the two ends removed in the direction perpendicular to the axis of the central hole of the capacitor core to enable one end of the short lead to be abutted against the second end of the capacitor core;

short lead welding: and welding one end of the short lead abutted to the capacitor core on the second end of the capacitor core.

2. The automatic piercing welding process for the capacitor core and the lead wire according to claim 1, characterized in that before the stripping piercing step for the long lead wire, the process further comprises:

cleaning a central hole: and cleaning the central hole of the capacitor core.

3. The automatic through-core bonding process for capacitor cores and leads according to claim 1, wherein the long lead bonding step comprises:

and (3) long lead tin forming: leading out the tin material at the abutting part of the long lead and the capacitor core, and melting the tin material by welding an electrode through the long lead;

soldering a long lead: one end of the long lead bent is welded with the first end of the capacitor core through molten tin.

4. The automatic through-core bonding process for capacitor cores and leads according to claim 1, wherein the short lead bonding step comprises:

short lead tin tapping: leading out the tin material at the abutting part of the short lead and the capacitor core, and melting the tin material through welding an electrode by the short lead;

short lead soldering: one end of the short lead, which is abutted against the capacitor core, and the second end of the capacitor core are welded together through molten tin.

5. The automatic feedthrough welding process of capacitor core and lead of claim 1, further comprising, between the long lead welding and short lead stripping steps:

turning over a capacitor core: the capacitor core welded with the long lead is turned over from horizontal placement to vertical placement through the turning mechanism.

6. The automatic through-core welding process of the capacitor core and the lead wire as claimed in claim 5, wherein the capacitor core is loaded, transported and discharged by a conveying mechanism.

7. The automatic through-core welding process of the capacitor core and the lead wire according to claim 6, wherein the conveying mechanism comprises a feeding mechanism, a transferring mechanism and a discharging mechanism; the feeding mechanism is used for horizontally conveying the capacitor cores to be welded to the transferring mechanism, the transferring mechanism is used for transferring the capacitor cores welded with the long leads to the overturning mechanism, and the discharging mechanism is used for discharging the capacitor cores welded with the long leads and the short leads.

Technical Field

The invention relates to the technical field of capacitor production, in particular to an automatic core-penetrating welding process for a capacitor core and a lead.

Background

In the production process of the CBB film capacitor, the welding of the lead and the end face of the capacitor core is an important production process, but the welding process is always manually operated, so that the efficiency is low, the quality is unstable, and a lot of inconvenience is brought to production.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide an automatic core-penetrating welding process of a capacitor core and a lead, which can improve the working efficiency and ensure the product quality.

The purpose of the invention is realized by adopting the following technical scheme:

preparing materials: preparing a long lead, a short lead and a capacitor core on a preset station;

stripping a long lead wire and threading the lead wire: removing wire skins at two ends of the long lead, and enabling one end of the long lead with the wire skins at the two ends removed to penetrate through a center hole of a capacitor core to be welded which is horizontally placed;

bending: bending one end of the long lead penetrating through the center hole of the capacitor core, and enabling the bent end of the long lead to be abutted against the first end of the capacitor core;

and (3) long lead welding: welding one end of the bent long lead with the first end of the capacitor core;

stripping and conveying short lead wires: removing the wire skins at the two ends of the short lead, and conveying the short lead with the wire skins at the two ends removed in the direction perpendicular to the axis of the central hole of the capacitor core to enable one end of the short lead to be abutted against the second end of the capacitor core;

short lead welding: and welding one end of the short lead abutted to the capacitor core on the second end of the capacitor core.

Further, before the step of stripping and threading the long lead, the method further comprises the following steps:

cleaning a central hole: and cleaning the central hole of the capacitor core.

Further, the long wire bonding step includes:

and (3) long lead tin forming: leading out the tin material at the abutting part of the long lead and the capacitor core, and melting the tin material by welding an electrode through the long lead;

soldering a long lead: one end of the long lead bent is welded with the first end of the capacitor core through molten tin.

Further, the short wire bonding step includes:

short lead tin tapping: leading out the tin material at the abutting part of the short lead and the capacitor core, and melting the tin material through welding an electrode by the short lead;

short lead soldering: one end of the short lead, which is abutted against the capacitor core, and the second end of the capacitor core are welded together through molten tin.

Further, the method also comprises the following steps between the long lead welding step and the short lead wire stripping and conveying step:

turning over a capacitor core: the capacitor core welded with the long lead is turned over from horizontal placement to vertical placement through the turning mechanism.

Further, the capacitor core is fed, transported and discharged through the conveying mechanism.

Further, the conveying mechanism comprises a feeding mechanism, a transferring mechanism and a discharging mechanism; the feeding mechanism is used for horizontally conveying the capacitor cores to be welded to the transferring mechanism, the transferring mechanism is used for transferring the capacitor cores welded with the long leads to the overturning mechanism, and the discharging mechanism is used for discharging the capacitor cores welded with the long leads and the short leads.

Compared with the prior art, the invention has the beneficial effects that: the automatic core-penetrating welding process of the capacitor core and the lead wire reduces the factor of manual uncertainty and ensures the quality of the welded capacitor core.

Drawings

FIG. 1 is a schematic view from a first perspective of an apparatus for performing an automated through-core bonding process of a capacitor core and a lead wire in accordance with the present invention;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is a schematic diagram of a second perspective of the apparatus for performing an automated through-core bonding process of a capacitor core and leads according to the present invention;

FIG. 4 is a schematic diagram of a third perspective of the apparatus for performing an automated through-core bonding process of a capacitor core and leads according to the present invention;

FIG. 5 is a fourth perspective view of the apparatus for performing an automated through-core bonding process of a capacitor core and leads according to the present invention;

FIG. 6 is an enlarged view at B in FIG. 5;

FIG. 7 is a schematic view of a long lead feed assembly according to the present invention;

FIG. 8 is a schematic view of a long lead wire tin tapping machine according to the present invention;

FIG. 9 is a schematic view of a long lead welding electrode;

FIG. 10 is a schematic sectional view of the apparatus for performing the automatic through-core bonding process of the capacitor core and the lead wire according to the present invention in a plan view.

In the figure: 11. a feeding motor; 12. a feeding belt; 13. a guide plate; 21. a horizontal guide rail; 22. a transfer motor; 23. moving the plate; 231. a vertical chute; 24. a connecting rod; 25. a clamping jaw; 31. a discharging motor; 32. a discharge belt; 33. rotating the clamping jaw; 41. a drive member; 42. a cleaning rod; 51. a wire stripping control box; 52. a tool holder assembly; 53. a front wire stripping roller set; 54. a rear wire stripping roller set; 55. a long lead wire feeding assembly; 56. a long lead wire tin discharging machine; 57. welding electrodes with long leads; 61. a turnover mechanism; 71. short lead welding electrodes; 81. a short lead wire feed assembly; 100. a conveying mechanism; 200. a cleaning mechanism; 300. a long lead welding mechanism; 400. short lead welding mechanism.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The invention discloses an automatic core-penetrating welding process of a capacitor core and a lead, which at least comprises the following steps: preparing a long lead, a short lead and a capacitor core on a preset station; removing wire skins at two ends of the long lead, and enabling one end of the long lead with the wire skins at the two ends removed to penetrate through a center hole of a capacitor core to be welded which is horizontally placed; bending one end of the long lead penetrating through the center hole of the capacitor core, and enabling the bent end of the long lead to be abutted against the first end of the capacitor core; welding one end of the bent long lead with the first end of the capacitor core; removing the wire skins at the two ends of the short lead, and conveying the short lead with the wire skins at the two ends removed in the direction perpendicular to the axis of the central hole of the capacitor core to enable one end of the short lead to be abutted against the second end of the capacitor core; and welding one end of the short lead abutted to the capacitor core on the second end of the capacitor core. The capacitor is specifically referred to as CBB6065 series thin film capacitor. The automatic core-penetrating welding process of the capacitor core and the lead reduces the factor of manual uncertainty and ensures the quality of the welded capacitor core.

Specifically, in the above steps, referring to fig. 1-6 and fig. 10, the long lead wire stripping and threading step is completed by using the long lead wire stripping assembly and the long lead wire feeding assembly 55. The bending step is completed by adopting a bending assembly, the bending assembly can be connected with a push plate through an air cylinder, and the bending can be realized by enabling the motion direction of the push plate to be vertical to the axial direction of the capacitor core; of course, the bending method is not limited to this, and the present invention is not limited to a specific structure thereof as long as the bending function can be achieved. The long lead wire stripping assembly, the long lead wire feeding assembly 55 and the bending assembly are the long lead wire welding mechanism 300. The long lead bonding step is accomplished using a long lead bonding assembly. The short lead wire stripping and conveying step is completed by adopting a short lead wire stripping assembly and a short lead wire conveying assembly 81. The short wire bonding step is accomplished using a short wire bonding assembly. The short lead wire stripping assembly, the short lead wire feeding assembly 81 and the short lead wire welding assembly are the short lead wire welding mechanism 400.

More specifically, in the welding process, the long lead wire stripping assembly can realize the wire stripping of two ends of a long lead wire, the short lead wire stripping assembly can realize the wire stripping of two ends of a short lead wire, the long lead wire conveying assembly 55 can enable one end of the long lead wire to penetrate through the center hole of the capacitor core, and the assemblies provide welding conditions for the long lead wire and the short lead wire, so that the subsequent welding is facilitated, namely the wire stripping process and the process that the long lead wire penetrates through the capacitor core can be completed at one time.

It should be noted that: after one end of the long lead wire penetrates through the capacitor core, the long lead wire is necessarily parallel to the axis of the capacitor core and cannot be welded with the end face of the capacitor core at the moment, so that the long lead wire penetrates through one end of the capacitor core to be bent through the bending step, and the subsequent welding is facilitated. When the short lead is welded, the short lead is perpendicular to the axial direction of the central hole of the capacitor core, so the short lead can be welded without bending.

The long lead wire stripping assembly and the short lead wire stripping assembly respectively comprise a stripping control box 51, a tool rest assembly 52, a front stripping roller set 53 and a rear stripping roller set 54; the wire stripping control box 51 is respectively and electrically connected with the tool rest assembly 52, the front wire stripping roller set 53 and the rear wire stripping roller set 54; the wire stripping control box 51 is adapted to drive the tool rest assembly 52 to cut off the skins of the long lead wire and the short lead wire, and drive the front wire stripping roller set 53 and the rear wire stripping roller set 54 to rotate to strip off the cut skins.

Taking long lead wire stripping as an example, a front wire stripping roller motor for driving a front wire stripping roller group 53, a tool rest motor for driving a tool rest assembly 52 and a rear wire stripping roller motor for driving a rear wire stripping roller group 54 are arranged in the wire stripping control box 51; then the front wire stripping roller motor rotates forward to send one end of the long lead to the knife rest component 52, the knife rest motor rotates forward to close the knife edge to cut off the skin, and then the front wire stripping roller motor rotates backward to strip off the cut off skin; then the knife edge of the knife rest component 52 is reset, the rear wire stripping roller motor rotates reversely to send the other end of the long lead to the knife edge of the knife rest component 52, the knife edge is closed by the forward rotation of the motor of the knife rest component 52 to cut off the skin, the rear wire stripping roller motor rotates forwardly to strip off the cut skin, the long lead with two stripped ends is sent to the position of the long lead conveying component 55, and one end of the long lead with two stripped ends passes through the capacitor core by the long lead conveying component 55. Similarly, the wire stripping of the short lead wire is also the same, and the description is omitted in the present invention. According to the invention, wire stripping of two ends of the long lead and the short lead is completed in an automatic manner, so that the working efficiency is improved, and the labor is saved.

Preferably, before the step of stripping the long lead wire and penetrating the lead wire, the method further comprises the step of cleaning a central hole: and cleaning the central hole of the capacitor core. Specifically, the cleaning central hole step may be implemented using the cleaning mechanism 200. The cleaning mechanism 200 comprises a driving member 41 and a cleaning rod 42, the cleaning rod 42 is coaxially arranged with the capacitor core, and the driving member 41 is adapted to drive the cleaning rod 42 to reciprocate along the length direction thereof. The cleaning rod 42 and the capacitor core are coaxially arranged, when the driving piece 41 drives the cleaning rod 42 to move, the capacitor core can be cleaned, so that the long lead is prevented from being blocked when passing through the capacitor core, and the welding reliability is ensured.

Preferably, the long wire bonding step comprises: long lead out tin and long lead soldering. The long lead wire is led out of the contact portion between the long lead wire and the capacitor element, and the long lead wire welding electrode 57 melts the tin material. The long lead soldering means that one end of the bent long lead is welded with the first end of the capacitor core through molten tin. Lead out the butt department with the tin material at long lead wire and capacitor core, can make things convenient for long lead wire welding electrode 57 directly to weld, promote the convenience of welding. Specifically, referring to fig. 7-9, long lead wicking may be accomplished by a long lead wicking machine 56 and long lead soldering may be accomplished by a long lead welding electrode 57. The long lead tapping machine 56 and the long lead welding electrode 57 are also the prior art, and the detailed working mode and principle thereof are not described herein again.

Preferably, the short wire bonding step comprises: short lead out and short lead soldering. The short lead tapping means that a tin material is led out at the contact portion between the short lead and the capacitor core, and the tin material is melted by the short lead welding electrode 71. Short lead soldering means that one end of the short lead, which is abutted against the capacitor core, is welded with the second end of the capacitor core through molten tin. Lead out the tin material in the butt department of short lead and capacitor core, can make things convenient for short lead welding electrode 71 directly to weld, promote the convenience of welding. Similarly, short-lead tapping can be achieved by a short-lead tapping machine, and short-lead soldering can be achieved by the short-lead welding electrode 71. The short lead tapping machine and the short lead welding electrode 71 are also the prior art, and the detailed working mode and principle thereof are not described herein again.

Preferably, the method further comprises the following steps between the long lead welding step and the short lead wire stripping and conveying step: the capacitor core is turned over, namely the capacitor core welded with the long lead is turned over from a horizontal placement to a vertical placement through a turning mechanism 61. It should be noted that the turnover mechanism 61 can be implemented by using an existing manipulator (having a spatial movement function), that is, the manipulator directly grabs the capacitor core to turn over, and places the capacitor core to a preset position; it can also be realized by using a push rod and the existing transfer jaw 25 (which can only move in a plane), that is, the second end of the capacitor core is pushed by the push rod to stand up, and then is sent to a preset position (short lead welding position) by the transfer jaw 25.

Preferably, the capacitor cores are loaded, transported and discharged by the conveying mechanism 100. Specifically, the conveying mechanism 100 includes a feeding mechanism, a transferring mechanism, and a discharging mechanism; the feeding mechanism is used for horizontally conveying the capacitor cores to be welded to the transferring mechanism, the transferring mechanism is used for transferring the capacitor cores welded with the long leads to the overturning mechanism 61, and the discharging mechanism is used for discharging the capacitor cores welded with the long leads and the short leads.

In the invention, the feeding mechanism is used for feeding the capacitor core, the capacitor core is in a horizontal placement state when the capacitor core is fed, and when the capacitor core is conveyed to the terminal of the feeding mechanism, the capacitor core is transferred to the cleaning mechanism 200 station and the long lead welding station through the transfer mechanism. The number of the transfer mechanisms can be determined according to actual production conditions, for example, in the invention, the number of the transfer mechanisms can be set to be one, the first transfer mechanism is used for transferring the capacitor cores to the station 200 of the cleaning mechanism, the second transfer mechanism is used for transferring the capacitor cores to long lead welding work, and the third transfer mechanism is used for transferring the capacitor cores to the station 61 of the turnover mechanism. Through the cooperation of material loading structure, transport mechanism and discharge mechanism, the completion that can automize is to the transport of condenser core, improves production efficiency, saves the manual work.

The feeding mechanism comprises a feeding motor 11 and a feeding belt 12; the feeding motor 11 is suitable for driving the feeding belt 12 to rotate, guide plates 13 are arranged on two sides of the feeding belt 12, and the guide plates 13 are higher than the feeding belt 12 to form guide limiting grooves. Specifically, in the invention, the capacitor cores are fed and conveyed by the feeding belt 12, and the feeding mode of the feeding belt 12 is adopted, so that the capacitor core feeding device is low in cost and high in reliability. In addition, the guide plates 13 are arranged on the two sides of the feeding belt 12, so that the reliability of the capacitor core during conveying can be guaranteed, and the capacitor core is prevented from falling from the feeding belt 12.

The transfer mechanism comprises a horizontal guide rail 21, a transfer motor 22, a moving plate 23, a connecting rod 24 and a clamping jaw 25; the horizontal guide rail 21 is arranged higher than the transfer motor 22, the moving plate 23, the connecting rod 24 and the clamping jaw 25; the first end of the moving plate 23 is connected with the horizontal guide rail 21 in a sliding manner, and the second end of the moving plate 23 is fixedly connected with the clamping jaw 25; the moving plate 23 is provided with a vertical sliding groove 231, the first end of the connecting rod 24 is connected with the output end of the transfer motor 22, and the second end of the connecting rod 24 is slidably connected in the vertical sliding groove 231. Note that the holding jaws 25 can grip or release the capacitor element. In the initial state, the second end of the connecting rod 24 is located at the bottom of the vertical sliding slot 231, and during the transfer of the above-mentioned transfer mechanism, the transfer motor 22 rotates, so that the second end of the connecting rod 24 slides upwards in the vertical sliding slot 231, at this time, the moving plate 23 will move along the horizontal guide rail 21, and then, after the second end of the connecting rod 24 reaches the top point in the vertical sliding slot 231, the moving plate 23 will slide downwards, at this time, the moving plate 23 continues to move along the horizontal guide rail 21, thereby completing the transfer of the capacitor core. The transfer mechanism is simple in structure and low in cost. In addition, the mode is convenient to position during transferring, namely the stroke of the transferring mechanism is fixed.

The discharging mechanism comprises a discharging motor 31, a discharging belt 32 and a rotating clamping jaw 33; the rotation axis of the rotating jaw 33 is vertically arranged; the discharging motor 31 is suitable for driving the discharging belt 32 to rotate, guide plates 13 are arranged on two sides of the discharging belt 32, and the guide plates 13 are higher than the discharging belt 32 to form guide limiting grooves. Similarly, the arrangement of the guide plate 13 can ensure the reliability of discharging of the capacitor core, and prevent the capacitor core from falling from the discharging belt 32. In the above arrangement, the rotating clamping jaws 33 can also clamp and release the capacitor core, and the vertical arrangement of the rotating shaft can facilitate the clamping and transferring (transferring to the short lead welding station) of the vertically arranged capacitor core by the clamping jaws 25.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.