Contact in-mold welding head with welding arm moving vertically

Abstract

The utility model particularly relates to a contact in-mold welding head with a welding arm moving vertically, which comprises a main body seat, a conveying track, an upper welding assembly and a lower welding assembly, and the conveying track is arranged in the main body seat along the X direction and is provided with an inlet end and an outlet end. The upper welding assembly is located above the main body base and protrudes downwards at the end, close to the outlet end of the conveying track, of the main body base to form an upper welding end, and the lower welding assembly is arranged below the main body base and protrudes upwards at the end, close to the outlet end of the conveying track, of the main body base to form a lower welding end corresponding to the upper welding end in position. The lower welding assembly or the upper welding assembly can ascend and descend in the Z direction relative to the main body base so that the upper welding assembly and the lower welding assembly can have a welding state and a separated feeding state. In the moving process of the lower welding assembly or the upper welding assembly, the upper welding end and the lower welding end are opposite all the time, even if electrode loss is generated in use, the parallel relation of the three welding assemblies cannot be affected, and therefore the welding quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of silver contact welding, in particular to a contact in-mold welding head with a welding arm that moves vertically. Background Art

[0002] A contact refers to the junction or contact surface between two conductors through which current can pass. Since metal conductor terminals are prone to instantaneous heat and sparks at the moment of contact, the contact points are prone to oxidation and electrolysis during the multi-frequency process of use. Therefore, the contact points are enlarged and thickened, or made of polymer metal. Therefore, this contact point made of polymer metal, or the point that is enlarged and thickened with the same material is called a silver contact.

[0003] In-mold welding is to directly and continuously weld silver contacts on the material strip, and then stamp them into parts. It has a better welding effect than traditional processes. The welding arm of the existing conventional contact in-mold welding head swings up and down with the rotating shaft fixed on the upper welding arm as the center. As shown in the invention patent with application number 202311153632.7, a silver contact in-mold welding device disclosed, although the contact is "parallel" to the substrate and the electrode in the compressed state when designed, but in actual application, when the contact enters the electrode, the upper electrode has a certain angle with the substrate and the lower electrode, the contact does not enter the electrode smoothly, and the welding surface will have a certain offset, which will cause spatter and empty welding in the contact welding, affecting the welding quality. Utility Model Content

[0004] The utility model aims to overcome the shortcomings and deficiencies of the prior art and to provide a contact in-mold welding head with a welding arm that moves vertically.

[0005] The technical solution adopted by the utility model is as follows: a contact in-mold welding head with a vertically movable welding arm, comprising a main body seat, a conveying track, an upper welding assembly, and a lower welding assembly. The conveying track is arranged in the main body seat along the X direction and has an inlet end and an outlet end. The upper welding assembly is located above the main body seat and protrudes downward at one end of the main body seat close to the outlet end of the conveying track to form an upper welding end. The lower welding assembly is arranged below the main body seat and protrudes upward at one end of the main body seat close to the outlet end of the conveying track to form a lower welding end corresponding to the position of the upper welding end.

[0006] The lower welding assembly or the upper welding assembly can be lifted and moved along the Z direction relative to the main body seat so that the upper welding assembly and the lower welding assembly have a welding state and a separation and loading state.

[0007] Preferably, an upper welding arm and a lower welding arm are respectively provided at the upper and lower ends of the main seat, the upper welding assembly and the lower welding assembly are respectively fixed on the upper welding arm and the lower welding arm, the upper welding arm is provided with a driving assembly for driving it to move downward and a resetting assembly for driving it to move upward, and the upper welding assembly and the lower welding assembly switch between a welding state and a separated loading state under the action of the driving assembly and the resetting assembly.

[0008] Preferably, the reset assembly is arranged between the upper welding arm and the main seat and includes an elastic element and an abutment member. The upper end of the upper welding arm is provided with a limiting groove extending along the Z direction. One end of the elastic element is connected to the limiting groove, and the other end is connected to the bottom of the abutment member.

[0009] Preferably, the abutment member is an insulating ball.

[0010] Preferably, the reset components are provided in four groups and are symmetrically distributed at four corners surrounding the center of the upper welding arm.

[0011] Preferably, the upper end of the main body seat is provided with upwardly extending guide members on both sides of the center thereof, and the upper welding arm is vertically penetrated by a guide groove which cooperates with the guide member at a position corresponding to the guide member.

[0012] Preferably, the guide member includes a guide vertical portion adapted to the shape and size of the guide groove and a limiting horizontal portion connected to the top of the guide vertical portion and limited above the guide groove. The guide vertical portion is inserted into the guide groove to form a sliding fit. When the upper welding assembly is in a separated loading state, the upper welding arm abuts against the lower end of the limiting horizontal portion.

[0013] Preferably, the driving assembly is arranged at the horizontal center of the upper welding arm, and includes a pressure rod, a limiting rod fixedly connected to the lower end of the pressure rod, and an upper abutment ring, a pressure tracking spring, and a lower abutment ring which are sequentially sleeved on the outside of the pressure rod from top to bottom. The outer wall of the pressure rod is provided with a threaded portion, the upper abutment ring is threadedly connected to the pressure rod, the lower abutment ring is abutted and cooperated with the limiting rod and at the same time abutted and cooperated with the upper welding arm, a limiting sleeve is fixedly provided at the upper end of the main body seat, a through groove is provided on the upper welding arm, the limiting rod passes through the through groove and extends into the limiting sleeve, and the limiting rod and the limiting sleeve cooperate to form a radial limiting effect on the limiting rod that can only slide along the Z-axis direction.

[0014] Preferably, the limiting sleeve extends upward into the through slot, and a mounting slot is provided at the upper end of the main body seat.

[0015] The limiting sleeve includes, from top to bottom, an upper connecting portion adapted to the size of the through slot and slidably matched, and a lower connecting portion fixed in the installation slot;

[0016] The inner circumference of the limit sleeve includes a first limit cavity and a second limit cavity which are connected from top to bottom. The first limit cavity and the second limit cavity are concentrically arranged, and the size of the first limit cavity is smaller than that of the second limit cavity, and a limit step is formed between the two. The lower end of the limit rod is circumferentially arranged with an anti-slip ring portion which is adapted to the size of the second limit cavity.

[0017] Preferably, the upper welding assembly includes an upper electrode holder and an upper electrode fixed to the upper electrode holder, and the lower welding assembly includes a lower electrode holder and a lower electrode fixed to the lower electrode holder, and the upper electrode and the lower electrode are parallel and opposite to each other.

[0018] The beneficial effects of the utility model are as follows: when the lower welding assembly or the upper welding assembly is moving, the upper and lower welding ends are always opposite to each other, and even if electrode loss occurs during use, the parallel relationship between the three will not be affected, thereby ensuring the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the utility model.

[0020] Figure 1 This is the overall structure diagram of the embodiment of the utility model;

[0021] Figure 2 This is a front view of the structure of an embodiment of the utility model;

[0022] Figure 3 This is a front cross-sectional view of an embodiment of the utility model;

[0023] Figure 4 A top view of the main body seat and the connecting structure thereon of the embodiment of the utility model;

[0024] Figure 5 This is a front cross-sectional view of the main body seat and the connecting structure thereon of the embodiment of the utility model;

[0025] Figure 6 for Figure 3 A magnified view of the structure at center;

[0026] In the figure, 1, main body seat; 2, upper welding arm; 3, lower welding arm; 11, conveying track; 12, mounting groove; 31, elastic element; 32, abutment member; 33, limiting groove; 41, guide member; 42, guide groove; 51, pressure rod; 52, limiting rod; 53, upper abutment ring; 54, pressure tracking spring; 55, lower abutment ring; 56, limiting sleeve; 61, upper electrode seat; 62, upper electrode; 71, lower electrode seat; 72, lower electrode; 411, guide vertical part; 412, limiting horizontal part; 521, anti-slip ring part; 561, upper connecting part; 562, lower connecting part; 563, first limiting cavity; 564, second limiting cavity; 565, limiting step; 621, upper welding end; 622, contact limiting groove; 721, lower welding end. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0028] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. The subsequent embodiments will not explain this one by one.

[0029] The directions and positions mentioned in the present invention, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., are only for reference to the directions or positions of the drawings. Therefore, the directions and positions used are used to explain and understand the present invention, but not to limit the scope of protection of the present invention.

[0030] like Figures 1 to 6 As shown, in the embodiment of the utility model, a contact in-mold welding head with a vertically movable welding arm comprises a main body seat 1, a conveying track 11, an upper welding assembly, and a lower welding assembly. The conveying track 11 is arranged in the main body seat 1 along the X direction and has an inlet end and an outlet end. The upper welding assembly is located above the main body seat 1 and protrudes downward at one end of the main body seat 1 close to the outlet end of the conveying track 11 to form an upper welding end 621. The lower welding assembly is arranged below the main body seat 1 and protrudes upward at one end of the main body seat 1 close to the outlet end of the conveying track 11 to form a lower welding end 721 corresponding to the position of the upper welding end 621.

[0031] The lower welding assembly or the upper welding assembly can be lifted and moved along the Z direction relative to the main base 1 so that the upper welding assembly and the lower welding assembly can be in a welding state and a separated loading state.

[0032] With this arrangement, when the lower welding assembly or the upper welding assembly is moving, the upper and lower welding ends are always opposite to each other, and even if electrode loss occurs during use, the parallel relationship between the three will not be affected, thereby ensuring the welding quality.

[0033] The upper and lower ends of the main body seat 1 are respectively provided with an upper welding arm 2 and a lower welding arm 3, the upper welding assembly and the lower welding assembly are respectively fixed on the upper welding arm 2 and the lower welding arm 3, the upper welding arm 2 is provided with a driving assembly for driving it to move downward and a reset assembly for driving it to move upward, and the upper welding assembly and the lower welding assembly are switched between a welding state and a separation and loading state under the action of the driving assembly and the reset assembly. During the lifting process, the upper welding arm 2 is always parallel to the lower welding arm 3.

[0034] The reset assembly is arranged between the upper welding arm 2 and the main base 1 and includes an elastic element 31 and an abutment 32. The upper end of the upper welding arm 2 is provided with a limiting groove 33 extending along the Z direction. One end of the elastic element 31 is connected to the limiting groove 33, and the other end is connected to the bottom of the abutment 32.

[0035] In this embodiment, the elastic element is specifically a return spring.

[0036] The abutting member 32 is an insulating ball.

[0037] The reset assembly is provided in four groups and symmetrically distributed at four corners around the center of the upper welding arm 2. By improving the arrangement, the stability of the upper welding assembly moving upward is improved.

[0038] The upper end of the main body seat 1 is provided with upwardly extending guide members 41 on both sides of the center thereof, and the upper welding arm 2 is vertically penetrated with a guide groove 42 corresponding to the position of the guide member 41 and matched with the guide member 41. By improving the setting, the stability of the lifting and lowering movement of the upper welding assembly is further improved.

[0039] The guide member 41 includes a guide vertical portion 411 that matches the shape and size of the guide slot 42 and a limiting horizontal portion 412 that is connected to the top of the guide vertical portion 411 and is limited above the guide slot 42. The guide vertical portion 411 is inserted and slidably matched with the guide slot 42. When the upper welding assembly is in a separated loading state, the upper welding arm 2 abuts against the lower end of the limiting horizontal portion 412. The limiting horizontal portion improves the stability of the upper welding arm, the guide member and the main body when the upper welding assembly is in a separated loading state.

[0040] The driving assembly is arranged at the horizontal center of the upper welding arm 2, and includes a pressure rod 51, a limiting rod 52 fixedly connected to the lower end of the pressure rod 51, and an upper abutment ring 53, a pressure tracking spring 54, and a lower abutment ring 55 which are sequentially sleeved on the outside of the pressure rod 51 from top to bottom. The outer wall of the pressure rod 51 is provided with a threaded portion, the upper abutment ring 53 is threadedly connected to the pressure rod 51, and the lower abutment ring 55 is abutted and matched with the limiting rod 52 and the upper welding arm 2 at the same time. A limiting sleeve 56 is fixedly provided at the upper end of the main body seat 1, and a through groove is provided on the upper welding arm 2. The limiting rod 52 passes through the through groove and extends into the limiting sleeve 56. The limiting rod 52 cooperates with the limiting sleeve 56 to form a radial limiting effect on the limiting rod 52 that can only slide along the Z-axis direction.

[0041] The limiting sleeve 56 extends upward into the through slot, and a mounting slot 12 is provided at the upper end of the main body seat 1.

[0042] The limiting sleeve 56 includes, from top to bottom, an upper connecting portion 561 adapted to the size of the through slot and slidably matched, and a lower connecting portion 562 fixed in the installation slot 12;

[0043] The inner circumference of the limiting sleeve 56 includes a first limiting cavity 563 and a second limiting cavity 564 which are connected from top to bottom. The first limiting cavity 563 and the second limiting cavity 564 are concentrically arranged, and the size of the first limiting cavity 563 is smaller than that of the second limiting cavity 564, and a limiting step 565 is formed therebetween. The lower end of the limiting rod 52 is circumferentially arranged with an anti-slip ring portion 521 which is adapted to the size of the second limiting cavity 564.

[0044] The upper welding assembly includes an upper electrode holder 61 and an upper electrode 62 fixed to the upper electrode holder 61, and the lower welding assembly includes a lower electrode holder 71 and a lower electrode 72 fixed to the lower electrode holder 71. The upper electrode 62 and the lower electrode 72 are parallel and opposite to each other. The upper electrode 62 is provided with a contact limiting groove 622.

[0045] The welding process of this embodiment is as follows: the power mechanism of the punch press moves up and down to apply pressure to the pressure rod 51, and the pressure rod 51 then transmits the pressure to the upper welding arm 2 through the pressure tracking spring 54. The upper welding arm 2 moves downward and compresses the elastic element 31. The upper electrode 62 and the lower electrode 72 fixed on the upper welding arm 2 and the substrate between the upper electrode 11 and the lower electrode 10 are in close contact, and the welding is completed by welding discharge. After the welding is completed, the pressure driven by the power mechanism of the punch press is released, and the upper welding arm 2 returns to its position under the reset force of the elastic element 31 and the abutment 32. Since the upper welding arm 2, the upper electrode 62, the lower electrode 72 and the substrate between the upper and lower electrodes are always in a parallel state, even if the electrode is worn out during use, it will not affect the parallel relationship between the three, thereby ensuring the welding quality.

[0046] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A contact in-mold welding head with a vertically movable welding arm, comprising a main body seat (1), a conveying track (11), an upper welding assembly, and a lower welding assembly, wherein the conveying track (11) is arranged in the main body seat (1) along the X direction and has an inlet end and an outlet end, and is characterized in that: The upper welding assembly is located above the main body seat (1) and protrudes downwards at one end of the main body seat (1) close to the outlet end of the conveying track (11) to form an upper welding end (621); the lower welding assembly is arranged below the main body seat (1) and protrudes upwards at one end of the main body seat (1) close to the outlet end of the conveying track (11) to form a lower welding end (721) corresponding to the position of the upper welding end (621). The lower welding assembly or the upper welding assembly can be lifted and moved along the Z direction relative to the main body seat (1) so that the upper welding assembly and the lower welding assembly can be in a welding state and a separated loading state.

2. The contact in-mold welding head with vertically moving welding arms according to claim 1, characterized in that: An upper welding arm (2) and a lower welding arm (3) are respectively arranged at the upper and lower ends of the main body seat (1); the upper welding assembly and the lower welding assembly are respectively fixed on the upper welding arm (2) and the lower welding arm (3); the upper welding arm (2) is provided with a driving assembly for driving it to move downward and a resetting assembly for driving it to move upward; the upper welding assembly and the lower welding assembly are switched between a welding state and a separation and loading state under the action of the driving assembly and the resetting assembly.

3. The contact in-mold welding head with vertically moving welding arms according to claim 2, characterized in that: The reset assembly is arranged between the upper welding arm (2) and the main body seat (1) and comprises an elastic element (31) and an abutment member (32); a limiting groove (33) extending along the Z direction is provided at the upper end of the upper welding arm (2); one end of the elastic element is connected to the limiting groove (33) and the other end is connected to the bottom of the abutment member (32).

4. The contact in-mold welding head with vertically moving welding arms according to claim 3, characterized in that: The abutment member (32) is an insulating ball.

5. The contact in-mold welding head with vertically moving welding arms according to claim 3, characterized in that: The reset components are arranged in four groups and are symmetrically distributed at four corners surrounding the center of the upper welding arm (2).

6. The contact in-mold welding head with vertically moving welding arms according to claim 2, characterized in that: The upper end of the main body seat (1) is provided with guide members (41) extending upward on both sides of the center thereof, and the upper welding arm (2) is vertically penetrated by a guide groove (42) corresponding to the position of the guide member (41) and forming a match with the guide member (41).

7. A contact in-mold welding head with vertically moving welding arms according to claim 6, characterized in that: The guide member (41) comprises a guide vertical portion (411) whose shape and size are adapted to the guide groove (42) and a limiting horizontal portion (412) connected to the top of the guide vertical portion (411) and limited above the guide groove (42); the guide vertical portion (411) and the guide groove (42) are inserted and formed into a sliding fit; when the upper welding assembly is in a separated loading state, the upper welding arm (2) abuts against the lower end of the limiting horizontal portion (412).

8. The contact in-mold welding head with vertically moving welding arms according to claim 2, characterized in that: The driving assembly is arranged at the horizontal center of the upper welding arm (2), and comprises a pressure rod (51), a limiting rod (52) fixedly connected to the lower end of the pressure rod (51), and an upper abutting ring (53), a pressure tracking spring (54), and a lower abutting ring (55) which are sequentially sleeved on the outside of the pressure rod (51) from top to bottom. The outer wall of the pressure rod (51) is provided with a threaded portion. The upper abutting ring (53) is threadedly connected to the pressure rod (51). The lower abutting ring (55) abuts and cooperates with the limiting rod (52) and the upper welding arm (2) at the same time. A limiting sleeve (56) is fixedly provided at the upper end of the main body seat (1). A through groove is provided on the upper welding arm (2). The limiting rod (52) passes through the through groove and extends into the limiting sleeve (56). The limiting rod (52) cooperates with the limiting sleeve (56) to form a radial limiting effect on the limiting rod (52) so that it can only slide along the Z-axis direction.

9. The contact in-mold welding head with vertically moving welding arms according to claim 8, characterized in that: The limiting sleeve (56) extends upward into the through groove, and a mounting groove (12) is formed at the upper end of the main body seat (1). The limiting sleeve (56) comprises, from top to bottom, an upper connecting portion (561) adapted to the size of the through slot and slidably matched, and a lower connecting portion (562) fixed in the mounting slot (12); The inner circumference of the limiting sleeve (56) includes, from top to bottom, a first limiting cavity (563) and a second limiting cavity (564) which are connected to each other. The first limiting cavity (563) and the second limiting cavity (564) are concentrically arranged, and the size of the first limiting cavity (563) is smaller than that of the second limiting cavity (564), and a limiting step (565) is formed between the two. The lower end of the limiting rod (52) is circumferentially arranged with an anti-slip ring portion (521) whose size is adapted to the second limiting cavity (564).

10. The contact in-mold welding head with vertically moving welding arms according to claim 1, characterized in that: The upper welding assembly comprises an upper electrode holder (61) and an upper electrode (62) fixed to the upper electrode holder (61), and the lower welding assembly comprises a lower electrode holder (71) and a lower electrode (72) fixed to the lower electrode holder (71), and the upper electrode (62) and the lower electrode (72) are parallel and opposite to each other.

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