An automatic welding device for terminal blocks

Abstract

The present application relates to an automatic welding device for terminal blocks, belonging to the technical field of terminal block production equipment. The welding device includes a welding platform, on which a terminal seat and a spring-back block are arranged. The spring-back block is located above the welding platform, and a plurality of spring-back members are arranged between the spring-back block and the welding platform; a welding mechanism, including a mounting frame located above the spring-back block, on which a contact block and a welding head are arranged. The contact block and the spring-back block are arranged opposite to each other in the vertical direction, and the welding head and the terminal seat are arranged opposite to each other in the vertical direction. The mounting frame is connected with a welding driving member for driving the mounting frame to move in the vertical direction; a wire feeding mechanism for feeding solder wire, which is located between the welding head and the welding platform in the vertical direction. The present application can improve the reset speed of the welding head, reduce the contact time between the welding head and the solder, effectively reduce the residue of solder on the welding head, and improve the welding effect and efficiency.

Description

Technical Field

[0001] This application relates to the technical field of wiring terminal production equipment, and in particular to an automatic welding equipment for wiring terminals. Background Art

[0002] A wiring terminal is a fitting product used to achieve electrical connection. There are generally two common methods for welding existing wiring terminals and wires. The first method: use a manual crimping pliers as the power to crimp the wiring terminal and the wire, and then use an electric soldering pen for welding; the second method, in most cases now, is to directly press down the welding head of the welding equipment, cooperate with the solder wire of the wire feeder, and crimp and weld the wiring terminal and the wire.

[0003] Currently, there is an existing automatic precision welding equipment for wiring terminals, including a welding table. An installation frame is arranged at the upper end of the welding table, a welding mechanism is fixed on the installation frame, a lifting rod is movably arranged at the lower end of the welding mechanism, a welding head is connected to the lower end of the lifting rod, and a tooling groove is opened on the upper end surface of the welding table and below the welding head. When welding the wiring terminal and the wire, the lifting rod drives the welding head to reciprocate in the vertical direction under the drive of the cylinder to achieve the continuous welding function.

[0004] In view of the above related technologies, during the welding process, when the separation speed between the welding head and the welding part of the wiring terminal is slow, the solder still remains highly viscous before cooling and solidifying, and is easily adhered to the welding head, thus causing the problem of the solder being taken away. This will result in insufficient solder amount at the welding part of the wiring terminal and the wire, and further affect the welding effect. In particular, when using a cylinder to drive the welding head, during the process of the welding head changing from the descending movement to the ascending movement, the air inlet and outlet mode of the cylinder needs to be switched, which makes the welding head unable to immediately separate from the welding part of the wiring terminal, which will affect the separation speed between the welding head and the welding part of the wiring terminal, and further lead to the influence on the welding effect. Summary of the Invention

[0005] This application provides an automatic welding equipment for wiring terminals, aiming to accelerate the separation between the welding head and the welding part of the wiring terminal after welding, reduce the contact time between the welding head and the solder, reduce the residue of the solder on the welding head, and improve the welding effect.

[0006] The automatic welding equipment for wiring terminals provided by this application adopts the following technical solutions:

[0007] An automatic welding device for terminal blocks comprises a welding platform, on which a terminal seat and a rebound block are arranged, the rebound block is located above the welding platform, and a plurality of rebound members are arranged between the rebound block and the welding platform; a welding mechanism comprises a mounting frame, the mounting frame is located above the rebound block, a resistance block and a welding head are arranged on the mounting frame, the resistance block and the rebound block are arranged opposite to each other in the vertical direction, the welding head and the terminal seat are arranged opposite to each other in the vertical direction, the mounting frame is connected to a welding driving member, and the welding driving member is used to drive the mounting frame to move in the vertical direction; a wire feeding mechanism is used to convey tin wire, and the wire feeding mechanism is located between the welding head and the welding platform in the vertical direction.

[0008] By adopting the above technical scheme, firstly, the welding platform, the welding mechanism and the wire feeding mechanism cooperate. When the terminal block and the wire are assembled and placed on the welding platform, the welding mechanism and the wire feeding mechanism work together, so that welding can be performed at the connection between the terminal block and the wire, which can realize the basic functions of the terminal block automatic welding equipment.

[0009] Secondly, a rebound block is arranged on the welding platform, and a plurality of rebound parts are arranged between the welding platform and the rebound block, so that when welding is performed, when the welding head moves vertically downward under the action of the welding driving part, the resistance block presses down the rebound block to compress and deform the rebound part, and the compressed and deformed rebound part can provide elastic force for the rebound block to quickly reset. Therefore, after welding is completed, the rebound part quickly releases elastic potential energy, pushing the rebound block to quickly reset, thereby accelerating the separation of the welding head and the welding point of the terminal, reducing the contact time between the welding head and the solder, effectively reducing the residual solder on the welding head, and improving the welding effect and efficiency.

[0010] Optionally, a limit assembly is further included, which includes a limit block, and the limit block is arranged on the welding platform; a limit groove is opened on the side wall of the rebound block, and the limit block is plugged into the limit groove, and the limit block is slidably connected to the inner side wall of the limit groove along the vertical direction.

[0011] By adopting the above technical solution, the plug-in cooperation between the limit block and the limit groove can effectively limit the horizontal displacement of the rebound block, ensuring that the rebound block only moves in the vertical direction, thereby improving the stability of equipment operation, ensuring the rapid resetting of the rebound block, and further improving the separation speed of the welding head and the terminal welding point, reducing the adhesion of solder on the welding head, and improving the welding quality.

[0012] Optionally, it further includes an installation component. The installation component includes installation bolts which are vertically arranged and are screwed to the resilient block. An installation sleeve is provided on the welding platform and is sleeved outside the installation bolts. The installation sleeve is slidably connected to the installation bolts in the vertical direction, and the installation bolts are detachably connected to the installation sleeve.

[0013] By adopting the above technical solution, since the resilient block needs to move in the vertical direction, the resilient block is in a floating installation state, and this state of installation is unstable. For this reason, an installation component is provided. The installation bolts in the installation component are screwed to the resilient block. An installation sleeve is provided on the welding platform. The installation sleeve is sleeved outside the installation bolts and is slidably connected to the installation bolts. At the same time, the installation bolts are detachably connected to the installation sleeve. Then the installation sleeve can guide and limit the sliding of the installation bolts. At the same time, the installation sleeve and the installation bolts are detachably connected, which can realize the positioning installation of the installation bolts, and further realize the positioning installation of the elastic block. Therefore, based on the structural design of the installation component, the stability of the installation of the resilient block and the smoothness of its movement in the vertical direction are ensured, thereby improving the stability of the welding process.

[0014] Optionally, the resilient member includes a first spring. The axial direction of the first spring is arranged vertically. The upper end of the first spring is connected to the resilient block, and the lower end is connected to the welding platform.

[0015] By adopting the above technical solution, through the setting of the first spring in the resilient member, the first spring can provide an upward elastic force for the resilient block, meeting the basic function of the resilient member.

[0016] Optionally, a first upward adjustment member is provided on the welding platform. The lower end of the first spring is connected to the first upward adjustment member, and the first upward adjustment member is used to drive the lower end of the first spring to move in the vertical direction.

[0017] By adopting the above technical solution, through the setting of the first upward adjustment member, the first upward adjustment member can drive the lower end of the first spring to move in the vertical direction, and then can change the distance between the lower end of the first spring and the resilient block, that is, can adjust the initial length of the first spring, thereby changing the pre-tightening force of the first spring. Thus, when the first spring decays in performance due to long-term use, the loss of spring elastic force can be compensated by adjusting the first upward adjustment member, ensuring that the resilient block can quickly reset after welding is completed, and then increasing the separation speed at the welding joint between the welding head and the terminal, reducing the possibility of solder adhering to the welding head, and ultimately improving the welding quality.

[0018] Optionally, the resilient member further includes a second spring. The second spring is axially arranged in the vertical direction. The second spring is inserted into the mounting sleeve. The upper end of the second spring is connected to the mounting bolt, and the lower end is connected to the mounting sleeve.

[0019] By adopting the above technical solution, due to the arrangement of the second spring in the resilient member, the second spring and the first spring act synergistically. When the welding head completes the welding action and releases the pressure on the resilient block, the second spring and the first spring synchronously and rapidly release the stored elastic potential energy, pushing the mounting bolt upward, thereby driving the resilient block to return to the initial position faster, which can further accelerate the reset process of the resilient block.

[0020] Optionally, a second adjusting member is arranged in the mounting sleeve. The lower end of the second spring is connected to the second adjusting member, and the second adjusting member is used to drive the lower end of the second spring to move in the vertical direction.

[0021] By adopting the above technical solution, with the second adjusting member arranged in the mounting sleeve, the second adjusting member can drive the lower end of the second spring to move in the vertical direction, which can change the initial length and compression amount of the second spring. Thus, when the elastic force of the second spring decreases due to long-term use, the second adjusting member can restore and maintain the elastic force of the second spring on the resilient block, ensure the rapid reset of the resilient block, further increase the separation speed at the welding joint between the welding head and the terminal, reduce the problem of solder adhesion, and improve the welding effect.

[0022] Optionally, a mounting screw hole is formed in the welding platform. The mounting sleeve is in plug-in fit with the mounting screw hole, and the mounting sleeve is threadedly connected to the inner side wall of the mounting screw hole.

[0023] By adopting the above technical solution, the mounting sleeve is in plug-in fit with the mounting screw hole on the welding platform and is fixed by threaded connection. This design can facilitate the installation and disassembly of the mounting sleeve, improve the efficiency of equipment maintenance and replacement. At the same time, since the mounting sleeve and the welding platform are threadedly connected, it can change the position of the mounting sleeve in the vertical direction.

[0024] Optionally, the mounting assembly further includes an intermediate sleeve. The intermediate sleeve is sleeved outside the mounting bolt, and the intermediate sleeve is screwed to the mounting bolt; the mounting sleeve is sleeved outside the intermediate sleeve, and the mounting sleeve is slidably connected to the intermediate sleeve along its own axis; a retaining member is detachably connected to the upper end of the mounting sleeve, and the retaining member is used to prevent the intermediate sleeve from sliding axially to separate from the mounting sleeve.

[0025] By adopting the above technical solution, through the arrangement of the intermediate sleeve, the intermediate sleeve is sleeved outside the mounting bolt and screwed with the mounting bolt, and the mounting sleeve is sleeved outside the intermediate sleeve and slidably connected with the intermediate sleeve, thus realizing the sliding connection and detachable connection between the mounting bolt and the mounting sleeve. The arrangement of the anti-disengagement member effectively prevents the intermediate sleeve from sliding axially along itself and separating from the mounting sleeve, ensuring the reliability of the overall structure, thereby improving the operation stability of the automatic welding equipment for the terminal block.

[0026] Optionally, an anti-rotation member is arranged on the outer side wall of the intermediate sleeve, and the anti-rotation member is used to prevent relative rotation between the intermediate sleeve and the mounting sleeve.

[0027] By adopting the above technical solution, the anti-rotation member is arranged on the outer side wall of the intermediate sleeve, which can prevent relative rotation between the intermediate sleeve and the mounting sleeve. Thus, when the rebound block needs to be disassembled, turning the mounting bolt will not drive the intermediate sleeve to rotate, ensuring that the mounting bolt and the intermediate sleeve can be disassembled, which facilitates the disassembly and assembly of the rebound block.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. Through the cooperative arrangement of the rebound block and the rebounding member in the present application, the welding head can be quickly pushed back to its original position after welding is completed, significantly improving the separation speed between the welding head and the welding joint of the terminal block, reducing the contact time between the welding head and the solder, effectively reducing the solder residue on the welding head, and improving the welding effect and efficiency.

[0030] 2. The rebounding member in the present application adopts a combined structure of a first spring and a second spring. The first spring and the second spring can provide the reset force synchronously, further improving the reset speed of the rebound block, ensuring that the welding head quickly disengages from the welding area, reducing solder residue, and improving the welding quality.

[0031] 3. The arrangement of the mounting component in the present application improves the mounting stability of the rebound block while ensuring that the rebound block can rebound normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic diagram of the overall structure of the welding equipment according to Embodiment 1 of the present application.

[0033] Figure 2 is a schematic cross-sectional view of the rebound block and the mounting seat according to Embodiment 1 of the present application.

[0034] Figure 3 is a schematic diagram of a partial structure of the welding equipment according to Embodiment 1 of the present application.

[0035] Figure 4 is a schematic cross-sectional view of the wire seat and the rebound block according to Embodiment 1 of the present application.

[0036] Figure 5 It is a schematic diagram of the overall structure of the resilient block and the mounting base in Embodiment 2 of the present application.

[0037] Figure 6 It is a schematic diagram of the sectional structure of the resilient block and the mounting base in Embodiment 2 of the present application.

[0038] Figure 7 It is Figure 6 a partial enlarged structural schematic diagram of part A in

[0039] Figure 8 It is an exploded structural schematic diagram of the mounting bolt, the intermediate sleeve and the mounting sleeve in Embodiment 2 of the present application.

[0040] Figure 9 It is a schematic diagram of the overall structure of the resilient block and the mounting base in Embodiment 3 of the present application.

[0041] Figure 10 It is a schematic diagram of the sectional structure of the resilient block and the mounting base in Embodiment 3 of the present application.

[0042] In the figure, 100, welding platform; 101, vertical plate; 1, terminal block; 11, fixing member; 111, first fixing block; 112, second fixing block; 113, fixing driving member; 2, wire seat; 21, wire clamping member; 211, clamping cylinder; 212, first clamping block; 213, second clamping block; 3, resilient block; 4, resilient member; 41, first spring; 42, second spring; 5, limiting component; 51, limiting block; 52, limiting groove; 6, mounting component; 61, mounting bolt; 62, guiding hole; 63, mounting base; 631, relief groove; 632, mounting screw hole; 64, mounting sleeve; 65, intermediate sleeve; 66, anti-disengagement member; 661, first limiting ring; 662, second limiting ring; 67, anti-rotation member; 671, anti-rotation convex block; 672, anti-rotation sliding groove; 7, upward adjustment component; 71, first upward adjustment member; 711, first plate; 7111, relief hole; 712, adjusting bolt; 713, hidden groove; 714, adjusting screw hole; 715, indicating long hole; 716, adjusting scale; 72, second upward adjustment member; 721, abutting bolt; 722, abutting through hole; 723, abutting screw hole; 724, sink; 200, welding mechanism; 201, welding driving member; 202, mounting frame; 203, abutting block; 204, welding head; 300, wire feeding mechanism; 301, fixing frame; 302, wire feeder; 303, wire feeding driving member. Detailed implementation manners

[0043] The following will Figure 1 - be described in Figure 10 further detail in conjunction with the appended

[0044] Embodiment 1: An automatic welding device for a terminal, referring to Figure 1 and Figure 2 , including a welding platform 100, a welding mechanism 200 and a wire feeding mechanism 300. A terminal seat 1, a wire seat 2 and a spring-back block 3 are arranged on the welding platform 100. The terminal seat 1, the spring-back block 3 and the wire seat 2 are arranged in sequence. The spring-back blocks 3 are arranged at intervals directly above the welding platform 100, and a spring-back member 4 is arranged between the spring-back block 3 and the welding platform 100.

[0045] In this embodiment, an installation component 6 is arranged on the welding platform 100. The installation component 6 includes an installation seat 63. The installation seat 63 is detachably connected to the welding platform 100. The installation seat 63 is located between the spring-back block 3 and the welding platform 100, and the spring-back member 4 is located between the spring-back block 3 and the installation seat 63.

[0046] When the automatic welding device performs welding, the welding mechanism 200 abuts against the spring-back block 3, so that the spring-back block 3 compresses the spring-back member 4, and the spring-back member 4 undergoes elastic deformation; after the welding is completed, when the welding mechanism 200 resets, the spring-back member 4 releases its own elastic potential energy, and the spring-back block 3 quickly resets. The spring-back block 3 abuts against the welding mechanism 200 to quickly reset, so that the welding part of the welding mechanism 200 and the terminal is quickly separated.

[0047] Referring to Figure 1 and Figure 2 , in this embodiment, the position of the spring-back block 3 is selected according to actual needs. And in this application, the spring-back block 3 is located between the wire seat 2 and the terminal seat 1. The wire passes over the spring-back block 3, and a corresponding card slot is provided on the spring-back block 3 for clamping the wire. It should be noted that since the wire and the terminal are pre-assembled and clamped tightly or clamped tightly by the welding mechanism 200, and the wire is also in a relaxed state, that is to say, the spring-back of the spring-back block 3 does not affect the connection between the wire and the terminal, that is, the spring-back of the spring-back block 3 does not affect the welding part of the wire and the terminal.

[0048] Referring to Figure 3 , the length direction of the wire seat 2 is perpendicular to the interval direction between the wire seat 2 and the terminal seat 1. A wire clamping member 21 is arranged on the wire seat 2. The wire clamping member 21 includes a clamping cylinder 211, a first clamping block 212 and a second clamping block 213. The first clamping block 212 and the second clamping block 213 are arranged at intervals along the width direction of the wire seat 2. The second clamping block 213 is slidably connected to the wire seat 2 along the width direction of the wire seat 2, and the clamping cylinder 211 is connected to the second clamping block 213.

[0049] Under the action of the wire clamping member 21, after the wire is placed on the wire seat 2, the clamping cylinder 211 works, and the first clamping block 212 and the second clamping block 213 cooperate to clamp the wire, improving the stability of the wire during welding.

[0050] Referring toFigure 3 and Figure 4 Between the resilient block 3 and the wire seat 2, a limiting component 5 is provided. The limiting component 5 includes a limiting block 51. The limiting block 51 is arranged on one side of the wire seat 2 facing the resilient block 3. A limiting groove 52 is formed on the resilient block 3. The limiting block 51 is inserted and matched with the limiting groove 52, and the limiting block 51 is slidably connected to the inner side wall of the limiting groove 52 in the vertical direction. Based on the cooperation between the limiting block 51 and the limiting groove 52, the movement of the resilient block 3 in the vertical direction can be limited and guided, improving the stability of the resilient block 3 in the vertical direction movement.

[0051] Refer to Figure 3 and Figure 4 The resilient member 4 includes a plurality of first springs 41. The axial direction of the first springs 41 is arranged along the vertical direction. The upper end of the first spring 41 abuts against the resilient block 3, and the lower end abuts against the mounting seat 63. The arrangement of the first springs 41 can realize the function of the resilient member 4.

[0052] Refer to Figure 2 The mounting component 6 further includes a plurality of mounting bolts 61. The mounting bolts 61 are arranged vertically, and the mounting bolts 61 are screwed to the resilient block 3. A plurality of guiding holes 62 are formed on the mounting seat 63. The guiding holes 62 are arranged in one-to-one correspondence with the mounting bolts 61. The mounting bolts 61 are inserted into the corresponding guiding holes 62, and the mounting bolts 61 are slidably connected to the inner side wall of the corresponding guiding holes 62 along their own axial directions. Moreover, the first springs 41 are arranged in one-to-one correspondence with the mounting bolts 61, and the first springs 41 are sleeved on the outer sides of the corresponding mounting bolts 61. Such a design enables the mounting bolts 61 to move along the axial direction of the corresponding guiding holes 62. At this time, the cooperation between the mounting bolts 61 and the guiding holes 62 can guide the movement of the resilient block 3 in the vertical direction, improving the stability of the resilient block 3 in the vertical direction movement.

[0053] Refer to Figure 3 On the terminal block 1, a fixing member 11 is provided. The fixing member 11 includes a first fixing block 111, a second fixing block 112, and a fixing driving member 113. The first fixing block 111 and the second fixing block 112 are arranged at intervals in the width direction of the wire seat 2. The first fixing block 111 is fixedly connected to the terminal block 1, and the second fixing block 112 is slidably connected to the terminal block 1 in the width direction of the wire seat 2. The fixing driving member 113 uses a driving screw rod. The fixing driving member 113 is rotatably connected to the first fixing block 111, and the fixing driving member 113 is screwed to the second fixing block 112.

[0054] When the fixing driving member 113 is screwed, the second fixing block 112 will move towards or away from the first fixing block 111. Thus, after the wiring terminal is placed on the terminal block 1, the first fixing block 111 and the second fixing block 112 can clamp the wiring terminal, thereby realizing the positioning and installation of the wiring terminal.

[0055] Refer toFigure 1 A vertical plate 101 is arranged on the welding platform 100, and the vertical plate 101 is vertically arranged on the welding platform 100, and a welding mechanism 200 is arranged on the vertical plate 101. The welding mechanism 200 includes a welding driver 201, a mounting frame 202, a resistance block 203 and a welding head 204. The welding driver 201 is vertically arranged on the vertical plate 101. In this embodiment, the welding driver 201 adopts a cylinder, and the driving end of the welding driver 201 is connected to the mounting frame 202. The welding head 204 and the resistance block 203 are both arranged on the mounting frame 202, the resistance block 203 is located directly above the rebound block 3, and the welding head 204 is located directly above the terminal seat 1.

[0056] Reference Figure 1 and Figure 2 The welding mechanism 200 can realize the welding function under the cooperation of the welding head 204 and the welding driver 201. The cooperation arrangement of the welding driver 201 and the abutment block 203 is such that when the welding head 204 descends to the corresponding position for welding, the abutment block 203 abuts against the rebound block 3, so that the first springs 41 below the rebound block 3 are compressed and deformed, and then when the welding head 204 is reset, the first springs 41 release their own elastic potential energy, and the rebound block 3 pushes the abutment block 203 to reset quickly, and the mounting frame 202 and the welding head 204 on the mounting frame 202 are quickly reset from the welding position.

[0057] Reference Figure 1 The wire feeding mechanism 300 includes a fixed frame 301, a wire feeder 302 and a wire feeding drive 303. The wire feeding drive 303 is vertically arranged on the vertical plate 101. In this embodiment, the wire feeding drive 303 adopts a cylinder, and the driving end of the wire feeding drive 303 is connected to the fixed frame 301. The wire feeder 302 is arranged on the fixed frame 301. The wire feeder 302 is located between the welding head 204 and the terminal seat 1 in the vertical direction, and the welding head 204 is located between the vertical plate 101 and the wire feeder 302 in the horizontal direction.

[0058] The wire feeding mechanism 300 can deliver tin wire to the welding point through the cooperation of the wire feeder 302 and the wire feeding drive 303, thereby meeting the welding requirements.

[0059] The implementation principle of the embodiment of the present application is: when welding the terminal, the wire is installed on the wire seat 2, the terminal is installed on the terminal seat 1, and the wire is aligned with the terminal and clamped. At this time, the welding mechanism 200 and the wire feeding mechanism 300 are working, and when the welding head 204 descends for welding, the resistance block 203 presses down the rebound block 3, and compresses and deforms the first spring 41.

[0060] After welding is completed, the welding driving member 201 needs to drive the welding head 204 to rise. During this process, the welding driving member 201 needs to change the air inlet and outlet directions, thereby changing the driving direction of the welding head 204. During the process of the welding driving member 201 changing the air inlet and outlet directions, the pressure for the welding driving member 201 to drive the welding head 204 downward disappears, and the first spring 41 abuts against the rebound block 3 and rebounds quickly, thereby enabling the welding head 204 to quickly reset upward. This can quickly reset the welding head 204 from the welding position of the terminal during the process of the welding driving member 201 changing the air inlet and outlet directions, thereby increasing the reset speed of the welding head 204.

[0061] Embodiment 2: An automatic welding device for terminals. Refer to Figure 1 and Figure 5 , the difference between this embodiment and Embodiment 1 is that a relief groove 631 is formed on one side of the mounting seat 63 facing the rebound block 3. A plurality of mounting bolts 61 are inserted into the relief groove 631, and the first spring 41 is located in the relief groove 631. The upper end of the first spring 41 abuts against the rebound block 3, and the lower end abuts against the bottom of the relief groove 631.

[0062] Refer to Figure 6 and Figure 7 , the mounting assembly 6 further includes a plurality of mounting sleeves 64. The mounting sleeves 64 are vertically arranged in the relief groove 631. A plurality of mounting screw holes 632 are formed at the bottom of the relief groove 631. The mounting screw holes 632 are arranged in one-to-one correspondence with the mounting sleeves 64, and the mounting sleeves 64 are inserted into the corresponding mounting screw holes 632. The mounting sleeves 64 are threadedly connected to the corresponding mounting screw holes 632.

[0063] Refer to Figure 6 and Figure 7 , the mounting sleeves 64 are arranged in one-to-one correspondence with the mounting bolts 61. The upper end of the mounting sleeve 64 is in plug-in fit with the corresponding mounting bolt 61, and an intermediate sleeve 65 is arranged between the mounting sleeve 64 and the mounting bolt 61. The intermediate sleeve 65 is sleeved outside the mounting bolt 61. The intermediate sleeve 65 is threadedly connected to the mounting bolt 61. The mounting sleeve 64 is sleeved outside the intermediate sleeve 65, and the mounting sleeve 64 is slidably connected to the intermediate sleeve 65 along its own axis.

[0064] Based on the cooperative arrangement of the mounting sleeve 64 and the intermediate sleeve 65, the mounting bolt 61 can move in the vertical direction, which can ensure the normal rebound of the rebound block 3. At the same time, the cooperation between the mounting bolt 61 and the intermediate sleeve 65 realizes the positioning installation of the mounting bolt 61, which can improve the installation stability of the rebound block 3.

[0065] Refer to Figure 6 and Figure 7, the lower end of the installation sleeve 64 is closed, and a second spring 42 is arranged inside the installation sleeve 64. The second spring 42 is axially arranged along the axis of the installation sleeve 64. One end of the second spring 42 abuts against the intermediate sleeve 65, and the other end abuts against the bottom of the installation sleeve 64.

[0066] While the rebound block 3 descends to compress the first spring 41, the installation bolt 61 synchronously descends to compress the second spring 42. Therefore, the second spring 42 and the first spring 41 act together, so as to further improve the rebound speed of the rebound block 3.

[0067] Refer to Figure 7 and Figure 8 , a anti-disengagement part 66 is arranged between the intermediate sleeve 65 and the installation sleeve 64. The anti-disengagement part 66 includes a first limiting ring 661 and a second limiting ring 662. The first limiting ring 661 is sleeved outside the intermediate sleeve 65, and the first limiting ring 661 is fixedly connected with the intermediate sleeve 65. The installation sleeve 64 is sleeved outside the first limiting ring 661, and the installation sleeve 64 is slidably connected with the first limiting ring 661 along its own axis. The second limiting ring 662 is coaxially arranged at the upper end of the installation sleeve 64. The second limiting ring 662 is sleeved outside the intermediate sleeve 65, and the intermediate sleeve 65 is slidably connected with the second limiting ring 662 along its own axis. The second limiting ring 662 is located above the first limiting ring 661, and the first limiting ring 661 and the second limiting ring 662 are arranged opposite to each other in the vertical direction.

[0068] The anti-disengagement part 66 is arranged through the cooperation of the first limiting ring 661 and the second limiting ring 662. Thus, when the intermediate sleeve 65 slides in the installation sleeve 64, the second limiting ring 662 limits the first limiting ring 661, which can prevent the intermediate sleeve 65 from sliding out of the installation sleeve 64.

[0069] Refer to Figure 7 and Figure 8 , in this embodiment, the second limiting ring 662 is detachably connected with the installation sleeve 64. Specifically, the second limiting ring 662 and the installation sleeve 64 are adhesively bonded with glue or connected by bolts.

[0070] When the second limiting ring 662 can be detached, the intermediate sleeve 65 and the installation sleeve 64 can be detached, which is convenient for the disassembly, assembly and maintenance of the installation bolt 61, the intermediate sleeve 65 and the installation sleeve 64.

[0071] Refer to Figure 8An anti-rotation member 67 is also provided between the intermediate sleeve 65 and the mounting sleeve 64. The anti-rotation member 67 includes a plurality of anti-rotation protrusions 671. The anti-rotation protrusions 671 are provided on the outer wall of the first limiting ring 661, and the plurality of anti-rotation protrusions 671 are arranged in sequence along the circumference of the first limiting ring 661. A plurality of anti-rotation slide grooves 672 are provided on the inner wall of the mounting sleeve 64. The anti-rotation slide grooves 672 penetrate the upper end surface of the mounting sleeve 64 along the axial direction of the mounting sleeve 64, and the plurality of anti-rotation slide grooves 672 are arranged in sequence along the circumference of the mounting sleeve 64. The anti-rotation protrusions 671 are arranged in one-to-one correspondence with the anti-rotation slide grooves 672. The anti-rotation protrusions 671 are plug-fitted with the corresponding anti-rotation slide grooves 672, and the anti-rotation protrusions 671 are slidably connected with the inner wall of the anti-rotation slide groove 672 along the vertical direction.

[0072] The anti-rotation member 67 can prevent the intermediate sleeve 65 and the mounting sleeve 64 from rotating relative to each other by providing the anti-rotation protrusion 671 and the anti-rotation groove 672. Since the intermediate sleeve 65 is threadedly connected to the mounting bolt 61, when the rebound block 3 needs to be removed, the mounting bolt 61 is screwed to separate the mounting bolt 61 from the intermediate sleeve 65, so that the mounting bolt 61 can be removed, and then the rebound block 3 can also be removed.

[0073] Reference Figure 6 The mounting seat 63 is provided with an upward adjustment component 7, which includes a first upward adjustment member 71, and the first upward adjustment member 71 includes a first plate 711 and an adjusting bolt 712. The first plate 711 is located in the clearance groove 631, and the first plate 711 is slidably connected with the inner wall of the clearance groove 631 in the vertical direction. A plurality of clearance holes 7111 are formed through the first plate 711, and the clearance holes 7111 are arranged one by one with the mounting bolts 61, and the mounting sleeve 64 is located in the corresponding clearance holes 7111. The first plate 711 is located between the first spring 41 and the bottom of the clearance groove 631 in the vertical direction, and the lower end of the first spring 41 is connected with the first plate 711. The adjusting bolt 712 is vertically arranged at the lower side of the first plate 711, and one end of the adjusting bolt 712 is in contact with the first plate 711, and the adjusting bolt 712 is screwed with the mounting seat 63.

[0074] When the adjusting bolt 712 is turned, the first plate 711 rises and falls in the vertical direction, which can change the distance between the first plate 711 and the rebound block 3, and then change the initial length of the first spring 41, thereby changing the preload force of the first spring 41, and then increase the initial speed of the rebound block 3 and increase the rebound speed of the rebound block 3.

[0075] Reference Figure 6In this embodiment, a hidden groove 713 is provided at the lower side of the mounting seat 63, an adjusting screw hole 714 is provided at the bottom of the hidden groove 713, an adjusting bolt 712 is plugged into and matched with the adjusting screw hole 714, the adjusting bolt 712 is threadedly connected to the inner wall of the adjusting screw hole 714, and the nut of the adjusting bolt 712 is located in the hidden groove 713. The hidden groove 713 and the adjusting screw hole 714 realize the threaded connection between the adjusting bolt 712 and the mounting seat 63, and also enable the adjusting bolt 712 to be hidden in the hidden groove 713.

[0076] Reference Figure 5 and Figure 6 In this embodiment, a long indicating hole 715 is opened on the side wall of the mounting seat 63, and the long indicating hole 715 is connected to the giving way groove 631. The length direction of the long indicating hole 715 is arranged along the vertical direction. A side wall of the long indicating hole 715 in the width direction is provided with a plurality of adjustment scales 716, and the plurality of adjustment scales 716 are arranged in sequence and spaced apart along the length direction of the long indicating hole 715.

[0077] When the first plate 711 slides in the give way slot 631, the position of the first plate 711 can be observed through the indicating long hole 715, and then the adjustment position of the first plate 711 can be driven through the corresponding adjustment scale 716, so that the initial length of the first spring 41 can be determined, and then the rebound speed and rebound time of the rebound block 3 at this time can be determined.

[0078] The implementation principle of the embodiment of the present application is as follows: when the terminal block and the wire are welded, the abutment block 203 abuts against the rebound block 3. At this time, the rebound block 3 descends and compresses the first spring 41. At the same time, the mounting bolt 61 descends and compresses the second spring 42. After the welding is completed, a plurality of first springs 41 and a plurality of second springs 42 synchronously abut against the rebound block 3 to reset. This can increase the reset speed of the rebound block 3, so that the welding head 204 can be separated from the welding point of the terminal block more quickly.

[0079] When the elastic force of the first spring 41 decreases due to long-term use, the first plate 711 rises in the clearance groove 631 by rotating the adjusting bolt 712, thereby shortening the initial length of the first spring 41, thereby reducing the initial length of the first spring 41, which enables the rebound block 3 to be subjected to a greater elastic force, thereby ensuring that the elastic force of the first spring 41 can quickly reset the rebound block 3.

[0080] Embodiment 3: An automatic terminal welding device, referring to Figure 9 and Figure 10 The difference between this embodiment and the second embodiment is that the upward adjustment assembly 7 further includes a plurality of second upward adjustment members 72 , and the second upward adjustment members 72 are arranged in a one-to-one correspondence with the second springs 42 .

[0081] Reference Figure 10, the second adjusting member 72 includes a contact bolt 721 which is vertically arranged and screwed to the mounting seat 63. A contact through hole 722 is formed through the lower end of the mounting sleeve 64, and the upper end of the contact bolt 721 is inserted into and cooperated with the corresponding contact through hole 722. The contact bolt 721 is arranged at an interval or slidably connected with the inner side wall of the corresponding mounting sleeve 64, and the upper end of the contact bolt 721 abuts against the lower end of the corresponding second spring 42.

[0082] When the contact bolt 721 is screwed, the contact bolt 721 rises and falls in the corresponding mounting sleeve 64, which can adjust the length of the corresponding second spring 42, and then realize the adjustment of the initial length of the second spring 42, so as to change the pre-tightening force of the second spring 42, and further improve the initial speed of the rebound block 3 popping up and increase the rebound speed of the rebound block 3.

[0083] Refer to Figure 10 , in this embodiment, a plurality of contact screw holes 723 are formed on the lower side of the mounting seat 63. The contact screw holes 723 are arranged in one-to-one correspondence with the contact through holes 722. The contact screw holes 723 are coaxially communicated with the corresponding contact through holes 722, and the contact bolt 721 is inserted into and cooperated with the corresponding contact screw hole 723, and the contact bolt 721 is threadedly connected with the inner wall of the corresponding contact screw hole 723.

[0084] In this embodiment, a plurality of sinking grooves 724 are formed on the lower side of the mounting seat 63. The sinking grooves 724 are arranged in one-to-one correspondence with the contact screw holes 723. The contact screw holes 723 are formed at the bottom of the sinking grooves 724, and the nuts of the contact bolts 721 are inserted into the corresponding sinking grooves 724.

[0085] The implementation principle of the embodiment of the present application is: when the contact bolt 721 is screwed, the initial length of the second spring 42 can be changed, and then the initial length of the second spring 42 is reduced, which can change the elastic force of the second spring 42 on the rebound block 3. Therefore, when the elastic force of the second spring 42 decreases due to long-term use, screwing the contact bolt 721 can restore the magnitude of the elastic force of the second spring 42 on the rebound block 3.

[0086] The embodiments of the present specific implementation manners are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. The same components are denoted by the same reference numerals. Therefore, all equivalent changes made according to the structure, shape and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. An automatic welding device for a terminal, characterized in that, include: A welding platform (100), wherein a terminal seat (1) and a springback block (3) are arranged on the welding platform (100), the springback block (3) is located above the welding platform (100), and a plurality of springback members (4) are arranged between the springback block (3) and the welding platform (100); A welding mechanism (200), comprising a mounting frame (202), the mounting frame (202) being located above the rebound block (3), the mounting frame (202) being provided with a resistance block (203) and a welding head (204), the resistance block (203) being arranged opposite to the rebound block (3) in a vertical direction, the welding head (204) being arranged opposite to the terminal seat (1) in a vertical direction, the mounting frame (202) being connected to a welding driving member (201), the welding driving member (201) being used to drive the mounting frame (202) to move in a vertical direction; A wire feeding mechanism (300) for feeding tin wire, the wire feeding mechanism (300) being located between the welding head (204) and the welding platform (100) in a vertical direction; It also includes a mounting assembly (6), the mounting assembly (6) including a mounting bolt (61), the mounting bolt (61) being arranged vertically, and the mounting bolt (61) being threadedly connected to the rebound block (3); The welding platform (100) is provided with a mounting sleeve (64), the mounting sleeve (64) being sleeved on the outside of the mounting bolt (61), the mounting sleeve (64) being slidably connected to the mounting bolt (61) in a vertical direction, and the mounting bolt (61) and the mounting sleeve (64) are detachably connected; The resilient member (4) comprises a first spring (41), the first spring (41) being axially arranged in a vertical direction, the upper end of the first spring (41) being connected to the resilient block (3), and the lower end being connected to the welding platform (100); The resilient member (4) further comprises a second spring (42), the second spring (42) being axially arranged in a vertical direction, the second spring (42) being inserted into the mounting sleeve (64), the upper end of the second spring (42) being connected to the mounting bolt (61), and the lower end being connected to the mounting sleeve (64).

2. The automatic welding device for a wiring terminal according to claim 1, characterized in that It also comprises a limiting assembly (5), the limiting assembly (5) comprising a limiting block (51), the limiting block (51) being arranged on the welding platform (100); The side wall of the rebound block (3) is provided with a limiting groove (52), the limiting block (51) is plug-fitted into the limiting groove (52), and the limiting block (51) is slidably connected to the inner side wall of the limiting groove (52) along the vertical direction.

3. An automatic welding device for a wiring terminal according to claim 1, characterized in that, The welding platform (100) is provided with a first upward adjusting member (71), the lower end of the first spring (41) is connected to the first upward adjusting member (71), and the first upward adjusting member (71) is used to drive the lower end of the first spring (41) to move in a vertical direction.

4. An automatic welding device for a terminal block according to claim 1, characterized in that, A second upward adjusting member (72) is arranged inside the mounting sleeve (64). The lower end of the second spring (42) is connected to the second upward adjusting member (72), and the second upward adjusting member (72) is used to drive the lower end of the second spring (42) to move in the vertical direction.

5. An automatic welding device for a wiring terminal according to claim 1, characterized in that, Mounting screw holes (632) are formed in the welding platform (100). The mounting sleeve (64) is inserted into and cooperates with the mounting screw holes (632), and the mounting sleeve (64) is threadedly connected to the inner side wall of the mounting screw holes (632).

6. The automatic welding device for a wiring terminal according to claim 1, characterized in that, The mounting assembly (6) further includes an intermediate sleeve (65). The intermediate sleeve (65) is sleeved outside the mounting bolt (61), and the intermediate sleeve (65) is screwed to the mounting bolt (61). The mounting sleeve (64) is sleeved outside the intermediate sleeve (65), and the mounting sleeve (64) is slidably connected to the intermediate sleeve (65) along its own axial direction. A detachment preventing member (66) is detachably connected to the upper end of the mounting sleeve (64). The detachment preventing member (66) is used to prevent the intermediate sleeve (65) from sliding axially along its own axis and separating from the mounting sleeve (64).

7. An automatic welding device for a wiring terminal according to claim 6, characterized in that, An anti-rotation member (67) is arranged on the outer side wall of the intermediate sleeve (65). The anti-rotation member (67) is used to prevent relative rotation between the intermediate sleeve (65) and the mounting sleeve (64).

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