Chip welding wire feeding mechanism with positioning mechanism

Abstract

The utility model discloses a chip welding wire feeding mechanism with a positioning mechanism, which belongs to the field of chip processing, and comprises a placing seat, a wire feeding mechanism, a clamping tool and an identifying mechanism, the clamping tool is placed on the placing seat during welding, the wire feeding mechanism comprises a support, a wire feeding seat is arranged at the upper end of the support, and the identifying mechanism is arranged on the wire feeding seat. A wire feeding seat is arranged on the support, a wire winding frame and a wire outlet nozzle are arranged on the wire feeding seat, a conveying mechanism is arranged between the wire winding frame and the wire outlet nozzle, the lower end of the support is arranged on a sliding seat, and the sliding seat is in sliding fit with a transverse guide rail; and the wire feeding seat moves along the vertical direction under the action of a vertical driving mechanism. The utility model aims to provide a chip welding wire feeding mechanism with a positioning mechanism, which can adjust the position of a wire outlet according to the position of a chip.

Description

Technical Field

[0001] The utility model relates to the field of chip processing, in particular to a chip welding wire feeding mechanism with a positioning mechanism. Background Art

[0002] In order to convert the collected physical, chemical or biological signals into electrical signals, such as converting temperature, pressure, gas concentration and other signals into voltage, current or resistance signals, so that these physical, chemical or biological signals can be read and processed by electronic devices such as microcontrollers; at the same time, in order to filter, amplify, transmit and store the processed signals, most sensors are equipped with chips.

[0003] In order to install the chip, a welding process is usually used to connect the chip to a mounting base such as a circuit board or a base. In the existing welding process, the chip and the mounting base are first fixed on a fixture or other fixed tooling, and then the fixed tooling carrying the chip is placed at the welding processing site, and then the soldering wire is used to connect the chip and the soldering points on the mounting base, and then the welding gun is used to weld the soldering points to connect the chip and the mounting base. Due to the differences in the sizes of different chips, and in order to improve production efficiency and quality, automatic welding equipment is often used to replace manual operations. In the above application scenarios, the wire feeding mechanism is required to adjust the position of the wire outlet according to the position of the chip. Utility Model Content

[0004] The utility model aims to solve the above problems and provide a chip welding wire feeding mechanism with a positioning mechanism, which can adjust the position of the wire outlet according to the chip position.

[0005] To achieve the above objectives, the technical solution adopted in this application is a chip welding wire feeding mechanism with a positioning mechanism, including a placement seat, a wire feeding mechanism, a clamping tool and an identification mechanism. The chip and the chip mounting part are fixed by the clamping tool, and the position of the chip is determined by the identification mechanism. The clamping tool is placed on the placement seat during welding. The wire feeding mechanism includes a bracket, the upper end of the bracket is provided with a wire feeding seat, the wire feeding seat is provided with a wire winding frame and a wire outlet nozzle, a conveying mechanism is provided between the wire winding frame and the wire outlet nozzle, the lower end of the bracket is provided on a sliding seat, and the sliding seat is slidably matched with a transverse guide rail; the wire feeding seat moves vertically under the action of the vertical driving mechanism, and the position of the wire outlet is adjusted by lifting and lowering the wire feeding seat and moving the bracket.

[0006] Furthermore, the conveying mechanism includes a conveying roller group, which includes two conveying rollers disposed on both sides of the welding wire, and at least one conveying roller is drivingly connected to the wire feeding motor to ensure stable conveying of the welding wire.

[0007] Furthermore, the clamping tool includes a base and a clamping mechanism, a first mounting groove is provided at the upper end of the base, the clamping mechanism includes a first clamping part and a second clamping part which are relatively arranged with the first mounting groove as the axis, the first clamping part and the second clamping part are slidably matched with the base, a chip placement area is provided at the upper end of the second clamping part, and the chip placement area is located above the first mounting groove to fix the chip and the chip mounting part at the same time.

[0008] Furthermore, a slide groove cooperating with the first clamping part and the second clamping part is provided at the upper end of the base to improve the stability of movement of the first clamping part and the second clamping part.

[0009] Furthermore, a clamping limit portion is provided in the slide groove, and the first clamping portion and the second clamping portion are provided with long through holes in the same direction as the slide groove. The clamping limit portion passes through the long through holes and is fixed to the bottom of the slide groove to prevent the first clamping portion and the second clamping portion from detaching from the slide groove.

[0010] Furthermore, a support portion for contacting the lower end of the second clamping portion is provided at the upper end of the base at the side end of the first mounting groove, so as to improve the structural stability of the second clamping portion and increase the service life of the second clamping portion.

[0011] Furthermore, the side ends of the first clamping part and the second clamping part are provided with baffles in contact with the outer side wall of the base to ensure that when the first clamping part and the second clamping part are closed, the positions of the chip placement area and the first mounting groove are maintained at the desired positions.

[0012] Furthermore, a magnetic area is provided on the baffle, and the magnetic area is adsorbed on the side end of the base to fix the positions of the first clamping part and the second clamping part.

[0013] Furthermore, a chip limiting portion is disposed at the upper end of the second clamping portion opposite to the side end of the chip placement area to improve the positioning effect of the chip.

[0014] Furthermore, the placement seat is installed on the mobile mechanism, so as to facilitate operators to take chips and the like.

[0015] The beneficial effects of the present application are as follows: the bracket and the sliding seat move in the horizontal direction to adjust the position of the wire outlet nozzle, thereby ensuring that the welding wire can move to the welding point. At the same time, since the welding wire is mostly alloy wire with a relatively hard hardness, and in order to protect chips, circuit boards, etc., it is required that the welding wire cannot rub against the chips, etc. during movement, so the wire feed seat can be raised and lowered under the action of the vertical drive mechanism, so that during the wire feeding process, the wire feed nozzle rises together with the wire feed seat, so that the welding wire is higher than the welding point. When the length of the welding wire coming out of the wire feed nozzle reaches the specified requirement, the wire feed seat is lowered again, so that the welding wire contacts the welding point, ensuring that the chip, etc. will not be damaged. The chip mounting portion is placed in the first mounting groove at the upper end of the base, and the chip is placed in the chip placement area. When the first clamping portion and the second clamping portion are closed, the chip is fixed above the chip mounting portion to facilitate subsequent welding and other work. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the structure of the utility model from top view.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the wire feeding mechanism.

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the wire feeding mechanism from another perspective.

[0020] Figure 5 It is a schematic diagram of the side structure of the wire feeding mechanism.

[0021] Figure 6 It is a schematic diagram of the assembly structure of the clamping fixture and the placement seat.

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the clamping tooling.

[0023] Figure 8 for Figure 7 A local enlarged schematic diagram of point A in the figure.

[0024] Fig. 9 It is a schematic diagram of the top view of the clamping tooling structure.

[0025] Fig.10 It is a schematic diagram of the structure of the first clamping part.

[0026] Fig.11 It is a schematic diagram of the structure of the second clamping part.

[0027] Fig.12 Schematic diagram of the exploded structure of the clamping tooling.

[0028] The text labels in the figure are as follows: 1. placement seat; 2. wire feeding mechanism; 201. bracket; 202. wire feeding seat; 203. wire winding frame; 204. wire outlet nozzle; 205. sliding seat; 206. horizontal guide rail; 207. vertical driving mechanism; 208. conveying roller; 209. wire feeding motor; 210. horizontal driving mechanism; 3. clamping tool; 301. base; 302. first mounting groove; 303. first clamping part; 304. second clamping part; 305. chip placement area; 306. slide groove; 307. clamping limit part; 308. long through hole; 309. support part; 310. baffle; 311. chip limit part; 312. extension area; 313. extension part; 314. protrusion; 4. identification mechanism; 5. moving mechanism; 6. chip; 7. chip mounting part. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0030] Embodiment 1, as Figure 1-5 As shown, the structure of this embodiment is: a chip welding wire feeding mechanism with a positioning mechanism, including a placement seat 1, a wire feeding mechanism 2, a clamping tool 3 and an identification mechanism 4. The identification mechanism 4 can adopt a visual recognition system, which includes a camera for image acquisition, a lamp for lighting, etc.; the clamping tool 3 is placed on the placement seat 1 during welding.

[0031] The wire feeding mechanism 2 includes a bracket 201, a wire feeding seat 202 is arranged on the upper end of the bracket 201, a wire winding frame 203 and a wire outlet nozzle 204 are arranged on the wire feeding seat 202, the wire winding frame 203 is circular, and the center of the wire winding frame 203 is installed on the wire feeding seat 202 through a rotating shaft; a conveying mechanism is arranged between the wire winding frame 203 and the wire outlet nozzle 204, and the conveying mechanism includes a conveying roller group, and the conveying roller group is arranged at intervals along the connecting line between the wire winding frame 203 and the wire outlet nozzle 204, and the conveying roller group includes two conveying rollers 208 disposed on both sides of the welding wire, and at least one conveying roller 208 is connected to the wire feeding motor 209 in transmission. In this embodiment, the output shaft of the wire feeding motor 209 is connected to the rotating shaft of the conveying roller 208 through a belt, and the belt is wound around the rotating shafts of multiple conveying rollers 208.

[0032] The bracket 201 is pushed by a transverse driving mechanism 210, and for this purpose, the lower end of the bracket 201 is arranged on a sliding seat 205, and the sliding seat 205 is slidably matched with a transverse guide rail 206. On the vertical projection plane, the transverse guide rail 206 is perpendicular to the wire feeding direction; the wire feeding seat 202 moves vertically under the action of the vertical driving mechanism 207, and the transverse driving mechanism 210 and the vertical driving mechanism 207 can adopt linear driving mechanisms such as linear modules, cylinders, and electric push rods.

[0033] Specific engineering process: the staff places the chip 6 and the chip mounting part 7 on the clamping tool 3, and then places the clamping tool 3 on the placement seat 1. The placement seat 1 fixes the clamping tool 3 by magnetic attraction, vacuum adsorption, etc. The placement seat 1 may also include a turntable, which can be driven by a motor or hydraulics to automatically rotate the clamping tool 3, thereby adjusting the welding area of ​​the chip 6.

[0034] At the same time, the staff installs the wire winding rack 203 wound with the welding wire on the wire feeding seat 202, and then passes one end of the welding wire through the conveying mechanism and then passes it out from the wire outlet of the wire outlet nozzle 204. The welding wire is clamped by the conveying roller group in the conveying mechanism.

[0035] After the chip 6 is placed, the recognition mechanism 4 collects the image of the chip 6 and determines the position of the chip 6 according to the coordinates input into the control system in advance. The control system includes a storage unit, a unit for analyzing and processing the data of the recognition mechanism 4, etc. The processing unit can be a single-chip microcomputer, a processor, etc. After the control system analyzes and determines the chip 6, the transverse drive mechanism 210 adjusts the position of the bracket 201 according to the position of the chip 6, so that the wire outlet of the wire outlet nozzle 204 is aligned with the welding point. After the bracket 201 is adjusted, the wire feeder 202 rises so that the wire outlet is higher than the welding point, and the wire feeder motor 209 drives the conveying roller 208 to rotate, so that the welding wire moves from the wire outlet to the top of the welding point, and then the wire feeder 202 descends so that the welding wire contacts the welding point, so as to facilitate the subsequent welding and other processes.

[0036] Embodiment 2, as Figure 6-12As shown, other structures and working processes of this embodiment refer to Example 1, but in this embodiment, the clamping tool 3 includes a base 301 and a clamping mechanism, the upper end of the base 301 is provided with a first mounting groove 302, the clamping mechanism includes a first clamping portion 303 and a second clamping portion 304 which are relatively arranged with the first mounting groove 302 as an axis, the first clamping portion 303 is provided with an extension area 312 on one side of the second clamping portion 304, the lower end surface of the extension area 312 is higher than the lower end surface of the first clamping portion 303, the second clamping portion 304 is provided with an extension portion 313 in the same direction as the first clamping portion 303 on one side of the first clamping portion 303, the lower end surface of the extension portion 313 is higher than the lower end surface of the second clamping portion 304, and the upper end surface of the extension portion 313 is provided with a chip placement area 305 The upper end of the second clamping portion 304 is provided with a chip limiting portion 311 opposite to the two sides of the chip placement area 305. The gap between the extension area 312 and the lower end surface of the extension portion 313 and the base 301 is used for placing the chip mounting portion 7. The extension portion 313 is provided with a protrusion 314 on one side of the first clamping portion 303. The upper end surface of the protrusion 314 is lower than the upper end surface of the extension portion 313. When the first clamping portion 303 and the second clamping portion 304 are closed, the chip is clamped in the space enclosed by the first clamping portion 303, the second clamping portion 304 and the chip limiting portion 311, that is, in the chip placement area 305. When the first clamping portion 303 and the second clamping portion 304 are closed, the chip placement area 305 is located above the first mounting groove 302.

[0037] The first clamping portion 303 and the second clamping portion 304 are slidably matched with the base 301, and for this purpose, a slide groove 306 matching with the first clamping portion 303 and the second clamping portion 304 is provided at the upper end of the base 301, and the slide groove 306 is preferably a dovetail groove, a T-shaped groove, etc.

[0038] A clamping limit portion 307 is provided in the slide groove 306, and the clamping limit portion 307 can adopt a locking bolt. The first clamping portion 303 and the second clamping portion 304 are provided with a long through hole 308 in the same direction as the slide groove 306, and a threaded hole matching the locking bolt is provided at the bottom of the slide groove 306. The clamping limit portion 307 passes through the long through hole 308 and is locked at the bottom of the slide groove 306.

[0039] During welding, the welding gun will exert downward pressure on the chip. In order to prevent the second clamping part 304 from deforming during long-term operation, a support part 309 is provided at the upper end of the base 301. When the second clamping part 304 is pushed to the specified position, the support part 309 supports the lower end of the second clamping part 304.

[0040] The side ends of the first clamping part 303 and the second clamping part 304 are provided with a baffle 310 in contact with the outer wall of the base 301, and the baffle 310 is provided with a magnetic area. The magnetic area can be formed by providing a magnet on the baffle 310, or the baffle 310 itself is a magnet. When the first clamping part 303 and the second clamping part 304 clamp the chip 6, the baffle 310 is adsorbed on the side end of the base 301 through the magnetic area.

[0041] In the specific working process, the chip mounting part 7 is placed in the first mounting groove 302, and the solder joint at the upper end of the chip mounting part 7 is higher than the upper end surface of the first mounting groove 302; the staff places the chip 6 in the chip placement area 305. After the chip 6 and the chip mounting part 7 are placed, the first clamping part 303 and the second clamping part 304 are moved closer to each other with the help of manpower or mechanical drive, and when the first clamping part 303 and the second clamping part 304 are closed, the chip 6 is fixed in the chip placement area 305. At this time, the chip 6 and the chip mounting part 7 are fixed at the same time to facilitate welding.

[0042] Embodiment 3, as Figure 1-2 As shown, other structures and working processes of this embodiment refer to Example 1. However, in this embodiment, since an identification mechanism 4, a welding gun, etc. are provided at the welding processing site, it is difficult for the staff to perform operations such as taking the chip. The placement seat 1 is installed on a moving mechanism 5, and the moving mechanism 5 can adopt a linear module, a screw connected to the placement seat 1, an electric push rod, etc.

[0043] In the specific working process, during the process of placing the chip 6, the placement seat 1 is driven by the moving mechanism 5 to move away from the welding processing place where the identification mechanism 4, the wire feeding mechanism 2, etc. are located. When the chip 6, the clamping tool 3, etc. are placed, the moving mechanism 5 drives the placement seat 1 to move to the welding processing place.

[0044] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0045] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, they can make several improvements, embellishments or changes, and can also combine the above technical features in an appropriate manner; these improvements, embellishments, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. A chip welding wire feeding mechanism with a positioning mechanism, comprising a placement seat (1) and a wire feeding mechanism (2), characterized in that: The invention also comprises a clamping tool (3) and an identification mechanism (4). The clamping tool (3) is placed on a placement seat (1) during welding. The wire feeding mechanism (2) comprises a bracket (201). A wire feeding seat (202) is arranged at the upper end of the bracket (201). A wire winding frame (203) and a wire outlet nozzle (204) are arranged on the wire feeding seat (202). A conveying mechanism is arranged between the wire winding frame (203) and the wire outlet nozzle (204). The lower end of the bracket (201) is arranged on a sliding seat (205). The sliding seat (205) is slidably matched with a transverse guide rail (206). The wire feeding seat (202) moves vertically under the action of a vertical driving mechanism (207).

2. A chip welding wire feeding mechanism with a positioning mechanism according to claim 1, characterized in that: The conveying mechanism comprises a conveying roller group, which comprises two conveying rollers (208) respectively disposed on both sides of the welding wire, and at least one conveying roller (208) is drivingly connected to a wire feeding motor (209).

3. A chip welding wire feeding mechanism with a positioning mechanism according to claim 1, characterized in that: The clamping tool (3) comprises a base (301) and a clamping mechanism, wherein a first mounting groove (302) is arranged at the upper end of the base (301), and the clamping mechanism comprises a first clamping portion (303) and a second clamping portion (304) which are arranged relative to each other with the first mounting groove (302) as an axis, wherein the first clamping portion (303) and the second clamping portion (304) are slidably matched with the base (301), and a chip placement area (305) is arranged at the upper end of the second clamping portion (304), and the chip placement area (305) is located above the first mounting groove (302).

4. A chip welding wire feeding mechanism with a positioning mechanism according to claim 3, characterized in that: The upper end of the base (301) is provided with a sliding groove (306) that cooperates with the first clamping portion (303) and the second clamping portion (304).

5. A chip welding wire feeding mechanism with a positioning mechanism according to claim 4, characterized in that: A clamping limit portion (307) is provided in the slide groove (306), and a long through hole (308) in the same direction as the slide groove (306) is provided on the first clamping portion (303) and the second clamping portion (304).

6. The chip welding wire feeding mechanism with a positioning mechanism according to claim 3, characterized in that: The upper end of the base (301) is provided with a support portion (309) at the side end of the first installation groove (302) for contacting the lower end of the second clamping portion (304).

7. The chip welding wire feeding mechanism with a positioning mechanism according to claim 3, characterized in that: The side ends of the first clamping portion (303) and the second clamping portion (304) are provided with baffles (310) that are in contact with the outer side wall of the base (301).

8. The chip welding wire feeding mechanism with a positioning mechanism according to claim 7, characterized in that: The baffle (310) is provided with a magnetic area.

9. The chip welding wire feeding mechanism with a positioning mechanism according to claim 3, characterized in that: A chip limiting portion (311) is disposed at the upper end of the second clamping portion (304) opposite to the side end of the chip placement area (305).

10. A chip welding wire feeding mechanism with a positioning mechanism according to any one of claims 1 to 9, characterized in that: The placement seat (1) is installed on the moving mechanism (5).

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