Lead welding equipment based on multi-station positioning and application of lead welding equipment in TOLL packaging

Abstract

The invention relates to the technical field of TOLL packaging, in particular to lead welding equipment based on multi-station positioning and application of the lead welding equipment in TOLL packaging, the lead welding equipment based on multi-station positioning comprises a cabinet body, four stations are arranged in the cabinet body along the circumference at equal intervals, and the four stations are a feeding station, a welding station, a detection station and a discharging station which are sequentially arranged; the lead welding equipment based on multi-station positioning further comprises a rotary table which is rotationally installed in the cabinet body, four installation bases are fixed to the rotary table at equal intervals along the circumference, bearing bases used for bearing chips to be welded are fixed to the side portions of the installation bases, pushing mechanisms are further arranged on the installation bases, and the pushing mechanisms are matched with pressure applying mechanisms arranged on the top wall of the cabinet body. On the basis of multi-station positioning treatment and in cooperation with the rotating action of the rotary table, the feeding, welding, detecting and discharging processes are carried out in order, chips are only subjected to one-time positioning treatment, and positioning errors caused by secondary positioning are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of TOLL packaging, in particular to a lead welding device based on multi-station positioning and an application thereof in TOLL packaging. Background Art

[0002] TOLL packaging, or "Transistor Outline Leadless", is an advanced power device packaging technology. It adopts a leadless design and has the characteristics of small size, low package resistance, low parasitic inductance and excellent thermal performance. This packaging form is widely used in MOSFET and can provide high current and high power density application scenarios.

[0003] In the TOLL packaging process, lead stitching welding is required, and the welding effect needs to be tested after welding. Nowadays, welding equipment is usually used to weld the workpiece first. After the welding process is completed, the testing equipment is used to test the workpiece after welding. In this regard, during the entire processing process, the workpiece needs to be transferred and converted between the welding equipment and the testing equipment, that is, the workpiece needs to be loaded and unloaded twice, which complicates the overall packaging process. In addition, the number of transmission lines or transfer robots that need to be set up also increases, making it difficult to achieve the ideal use effect. Summary of the invention

[0004] The object of the present invention is to provide a wire bonding device based on multi-station positioning and its application in TOLL packaging, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wire welding device based on multi-station positioning comprises a cabinet, wherein four stations are arranged equidistantly along the circumference of the cabinet, which are a loading station, a welding station, a detection station and a unloading station arranged in sequence; the wire welding device based on multi-station positioning also comprises: a turntable, which is rotatably installed in the cabinet, wherein four mounting seats are fixed equidistantly along the circumference of the turntable, and a supporting seat for receiving a chip to be welded is fixed on the side of the mounting seat, and the mounting seat is also provided with A pushing mechanism, which works when it is located at the unloading station, and is used to push the chip that has completed welding and testing off the supporting seat, and the pushing mechanism cooperates with the pressure mechanism provided on the top wall of the cabinet; a loading mechanism, which is installed in the cabinet and is located at the loading station, and is used to transport the chip to the supporting seat and cooperates with the pressure mechanism. The loading mechanism is also connected to a one-way transmission mechanism, which is triggered after the chip is transported and causes the turntable to rotate 90°.

[0006] As a further solution of the present invention: the loading mechanism includes a bracket fixed in the cabinet and a storage box arranged on the bracket for stacking chips, and the bracket is provided with two strip through grooves; the loading mechanism also includes a transverse plate movably arranged at the lower part of the bracket through two groups of threaded driving components, and the transverse plate is provided with two vertical arms adapted to the strip through grooves through two groups of elastic connection components, and the vertical arms pass through the strip through grooves.

[0007] As a further solution of the present invention: the elastic connection component includes a column slidably arranged on the transverse plate, a second cylindrical spring sleeved on the outer circumference of the column, the vertical arm is fixed to the upper end of the column, and the lower end of the column is fixedly connected to a transverse column; wherein, the two ends of the transverse column are respectively connected to a group of limiting structures installed on the bracket, and a round table is also fixedly provided on the column, one end of the second cylindrical spring is connected to the round table, and the other end is connected to the transverse plate.

[0008] As a further solution of the present invention: the limiting structure includes a limiting plate fixedly mounted on the bracket, the limiting plate is provided with a groove body adapted to the cross column, the cross column extends into the groove body and is slidably connected with the limiting plate; wherein, the groove body includes a first groove, a second groove, a third groove, a fourth groove and a fifth groove which are connected to each other, the end of the fifth groove away from the fourth groove is connected to the connection between the first groove and the second groove, and a movable part is hinged in the end of the fifth groove away from the fourth groove, and the rotating shaft of the movable part is connected to a torsion spring.

[0009] As a further solution of the present invention: the one-way transmission mechanism includes a ratchet wheel fixedly mounted on the rotating shaft of the turntable and a ratchet plate fixedly connected to the transverse plate; when the transverse plate moves away from the turntable, the ratchet on the ratchet plate can cooperate with the ratchet wheel to cause the turntable to rotate, and the rotating shaft of the turntable is also connected to an elastic positioning structure.

[0010] As a further solution of the present invention: the elastic positioning structure includes a guide cylinder fixed on the rotating shaft of the turntable, a telescopic rod slidably engaged with the guide cylinder, and a roller arranged at one end of the telescopic rod located outside the guide cylinder, and the end of the telescopic rod away from the roller is fixed to a boss slidably arranged in the guide cylinder; wherein, a third cylindrical spring is also provided inside the guide cylinder and is sleeved on the outer periphery of the telescopic rod, and the two ends of the third cylindrical spring are respectively connected to the inner wall of the guide cylinder and the boss, and a ring body concentric with the turntable is also fixed in the cabinet, and four limit protrusions are equidistantly provided on the ring body along the circumference, and the roller abuts against the limit protrusions.

[0011] As a further solution of the present invention: the pushing mechanism includes two guide columns fixed on the mounting seat, a lifting plate slidably connected to the two guide columns, and a push plate slidably embedded in the supporting seat; wherein, the outer periphery of the guide column is sleeved with a first cylindrical spring, the two ends of the first cylindrical spring are respectively connected to the mounting seat and the lifting plate, and the lifting plate is connected to the push plate through a connecting rod, the two ends of the connecting rod are respectively rotatably connected to the lifting plate and the push plate, and the side of the lifting plate is also fixedly provided with a protruding plate member cooperating with the pressure mechanism.

[0012] As a further solution of the present invention: the pressure mechanism includes a guide plate fixed on the top wall of the cabinet and a sleeve plate slidably fitted with the guide plate, the sleeve plate is connected to the transverse plate through a sliding fitting structure, and a pressing arm cooperating with the protruding plate is fixedly provided on the side of the sleeve plate facing the unloading station.

[0013] As a further solution of the present invention: the sliding matching structure includes a follower rod fixedly connected to the transverse plate and two follower plates fixedly mounted on the sleeve plate, a driving column is fixed to the end of the follower rod away from the transverse plate, a sliding groove adapted to the driving column is provided on the follower plate, the driving column passes through the sliding groove and is slidingly connected to the follower plate, and the sliding groove includes a connected straight through groove and an inclined through groove.

[0014] The application of the lead welding equipment based on multi-station positioning in TOLL packaging.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: four stations, namely, loading station, welding station, testing station and unloading station, are equidistantly arranged along the circumference of the turntable, so that the equipment integrates welding and testing functions, which can improve packaging efficiency; secondly, during loading, the loading mechanism can replenish chips into the supporting seat located on the loading station, and at the same time trigger the pushing mechanism to push out the chips in the supporting seat located at the unloading station, and the loading action of the loading station is synchronized with the unloading action of the unloading station, and after each loading is completed, the turntable is capable of rotating 90° in conjunction with the one-way transmission mechanism, so that the chip can pass through the four stations, namely, loading station, welding station, testing station and unloading station, in sequence; therefore, the present application adopts a multi-station setting, so that the loading, welding, testing and unloading processes are carried out in an orderly manner, and the chip only needs to be loaded and unloaded once to complete the welding and testing work, which effectively reduces the use of transmission lines or transfer robots and simplifies the packaging process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of an embodiment of a wire welding device based on multi-station positioning; Figure 2A schematic diagram of the internal structure of a cabinet in an embodiment of a wire welding device based on multi-station positioning; Figure 3 for Figure 2 A magnified view of the structure at center A; Figure 4 A schematic structural diagram of an embodiment of a wire welding device based on multi-station positioning; Figure 5 It is a structural schematic diagram of another angle of an embodiment of a wire welding device based on multi-station positioning; Figure 6 for Figure 5 A magnified view of the structure at B in the middle; Figure 7 It is a structural schematic diagram of a feeding mechanism in an embodiment of a wire welding device based on multi-station positioning; Figure 8 A schematic diagram of the matching relationship between the limiting structure and the elastic connection component in one embodiment of a wire welding device based on multi-station positioning; Fig. 9 It is a structural schematic diagram of a turntable in one embodiment of a wire welding device based on multi-station positioning; Fig.10 for Fig. 9 Schematic diagram of the structure from another angle.

[0017] In the figure: 1, turntable; 2, mounting seat; 3, supporting seat; 4, guide column; 5, lifting plate; 501, protruding plate; 6, first cylindrical spring; 7, connecting rod; 8, push plate; 9, bracket; 901, strip groove; 10, storage box; 11, driving motor; 12, screw rod; 13, transverse plate; 14, column; 1401, round table; 15, second cylindrical spring; 16, vertical arm; 17, horizontal column; 18, ratchet plate; 19, limit plate; 1901, first groove; 1902, second groove Groove; 1903, third groove; 1904, fourth groove; 1905, fifth groove; 20, movable part; 21, ratchet; 22, roller; 23, third cylindrical spring; 24, guide cylinder; 2401, boss; 25, telescopic rod; 26, ring body; 2601, limiting protrusion; 27, follower rod; 2701, driving column; 28, driven plate; 2801, straight through groove; 2802, inclined through groove; 29, guide plate; 30, sleeve plate; 3001, pressing arm; 31, cabinet body. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0020] See also Figure 1-Figure 10 In the embodiment of the present invention, the lead welding equipment based on multi-station positioning includes a cabinet 31, and four stations are arranged equidistantly along the circumference of the cabinet 31, which are respectively a loading station, a welding station, a detection station and a unloading station arranged in sequence; the lead welding equipment based on multi-station positioning also includes: a turntable 1, which is rotatably installed in the cabinet 31, and four mounting seats 2 are fixed on the turntable 1 at equal distances along the circumference, and a supporting seat 3 for receiving a chip to be welded is fixed on the side of the mounting seat 2, and a pusher is also provided on the mounting seat 2 The pushing mechanism works when it is located at the unloading station, and is used to push the chip that has completed welding and testing from the supporting seat 3. The pushing mechanism cooperates with the pressure mechanism provided on the top wall of the cabinet 31; the loading mechanism is installed in the cabinet 31 and is located at the loading station. The loading mechanism is used to transport the chip to the supporting seat 3 and cooperates with the pressure mechanism. The loading mechanism is also connected to a one-way transmission mechanism, which is triggered after the chip is transported and prompts the turntable 1 to rotate 90°.

[0021] In addition, please refer to Figure 4 The loading station is located on the side of the turntable 1 facing the bracket 9, and the welding station, the inspection station and the unloading station are distributed in a circle in a clockwise direction starting from the loading station.

[0022] Furthermore, the cabinet 31 is also provided with a welding module and a detection module, which are respectively located on the welding station and the detection station. Specifically, the welding module is used to complete the lead welding of the chip, and the detection module is used to detect the welding condition. Both adopt existing automation technology, and this application will not go into details. When working, the loading mechanism works to transport the chip to the supporting seat 3 located on the loading station. At the same time, the chip located on the welding station completes the lead welding process, and the chip located on the detection station undergoes welding detection process. The loading mechanism cooperates with the pressure mechanism, and the pressure mechanism prompts the pushing mechanism to be triggered. The pushing mechanism pushes the chip in the supporting seat 3 located on the unloading station down. After the chip is transported, the unloading mechanism prompts the turntable 1 to rotate 90° through the one-way transmission mechanism to realize the one-by-one conversion of the chip between the four stations.

[0023] In addition, it should be supplemented that a corresponding transfer robot is also provided in the cabinet 31. Whenever unloading is completed, the transfer robot is used to transfer the chips that have completed welding and testing.

[0024] Please refer again Figure 4-Figure 8 The loading mechanism includes a bracket 9 fixed in the cabinet 31 and a storage box 10 arranged on the bracket 9 for stacking chips, and the bracket 9 is provided with two strip through grooves 901; the loading mechanism also includes a transverse plate 13 movably arranged at the lower part of the bracket 9 through two groups of threaded driving components, and the transverse plate 13 is provided with two vertical arms 16 adapted to the strip through grooves 901 through two groups of elastic connection components, and the vertical arms 16 pass through the strip through grooves 901.

[0025] In detail, the threaded drive assembly includes a screw rod 12 rotatably installed at the bottom of the bracket 9 and a driving motor 11 installed at the bottom of the bracket 9, the screw rod 12 is connected to the output end of the driving motor 11, and the screw rod 12 passes through the transverse plate 13, and the transverse plate 13 is threadedly connected to the screw rod 12. When the driving motor 11 drives the screw rod 12 to rotate forward, the transverse plate 13 can be threadedly matched with the screw rod 12 and drive the two vertical arms 16 to move along the strip-shaped through groove 901 through the elastic connection assembly, and then the two vertical arms 16 can move the chip located at the bottom layer of the storage box 10, so that the chip moves toward the upper layer located at the upper layer. The vertical arm 16 moves on the supporting seat 3 on the material station, and finally the chip is transferred to the supporting seat 3 for subsequent welding and testing; in addition, after the vertical arm 16 reaches the end of the movement stroke, the elastic connection component is triggered, causing the vertical arm 16 to move downward, and the vertical arm 16 is withdrawn from the strip through groove 901. After the chips on the welding station and the chips on the testing station are processed accordingly, the drive motor 11 drives the screw rod 12 to rotate in the opposite direction, and the vertical arm 16 moves away from the turntable 1 and resets to the initial position. During this process, the one-way transmission mechanism is triggered, causing the turntable 1 to complete a 90° rotation, so that the chip can switch positions one by one among the four stations for different processing.

[0026] The elastic connection component includes a column 14 slidably arranged on the transverse plate 13, a second cylindrical spring 15 sleeved on the outer periphery of the column 14, the vertical arm 16 is fixed to the upper end of the column 14, and the lower end of the column 14 is fixedly connected to a cross column 17; wherein, the two ends of the cross column 17 are respectively connected to a group of limiting structures installed on the bracket 9, and a round table 1401 is also fixedly provided on the column 14, one end of the second cylindrical spring 15 is connected to the round table 1401, and the other end is connected to the transverse plate 13.

[0027] The limiting structure includes a limiting plate 19 fixedly mounted on the bracket 9, and a groove body adapted to the transverse column 17 is provided on the limiting plate 19, and the transverse column 17 extends into the groove body and is slidably connected with the limiting plate 19; the groove body includes a first groove 1901, a second groove 1902, a third groove 1903, a fourth groove 1904 and a fifth groove 1905 that are connected to each other, and the end of the fifth groove 1905 away from the fourth groove 1904 is connected to the connection between the first groove 1901 and the second groove 1902, and a movable part 20 is hinged in the end of the fifth groove 1905 away from the fourth groove 1904, and the rotating axis of the movable part 20 is connected to a torsion spring.

[0028] During loading, during the forward working process of the threaded drive assembly, the movable part 20 cannot deflect downward in the fifth groove 1905, so the cross column 17 moves along the first groove 1901 and the second groove 1902. At this time, the two vertical arms 16 can smoothly push the chips at the bottom layer in the storage box 10 into the supporting seat 3 located on the loading station. After this section of movement is completed, the cross column 17 reaches the connection between the second groove 1902 and the third groove 1903. At this time, the second cylindrical spring 15 in a compressed state rebounds, so that the cross column 17 switches to the connection between the third groove 1903 and the fourth groove 1904. Accordingly, the vertical column 14 drives the vertical arm 16 downward. When the screw drive assembly works in the reverse direction, the vertical arm 16 is pulled out from the strip through groove 901, so that the vertical arm 16 can be smoothly reset when the screw drive assembly works in the reverse direction. When the screw drive assembly works in the reverse direction, the horizontal column 17 moves along the fourth groove 1904 toward the fifth groove 1905. When the horizontal column 17 moves in the fifth groove 1905, it will slide with the limiting plate 19, and then the horizontal column 17 moves upward, and the horizontal column 17 causes the movable part 20 to deflect upward. The horizontal column 17 is reset to the end of the first groove 1901 away from the second groove 1902, and the vertical arm 16 is reinserted into the strip through groove 901, and the movable part 20 is deflected and reset under the action of the torsion spring.

[0029] Please refer again Figure 5 The one-way transmission mechanism includes a ratchet 21 fixedly mounted on the rotating shaft of the turntable 1 and a ratchet plate 18 fixedly connected to the transverse plate 13. When the transverse plate 13 moves away from the turntable 1, the ratchet on the ratchet plate 18 can cooperate with the ratchet 21 to cause the turntable 1 to rotate, and the rotating shaft of the turntable 1 is also connected to an elastic positioning structure.

[0030] Please refer again Figure 3 and Fig.10 The elastic positioning structure includes a guide cylinder 24 fixed on the rotating shaft of the turntable 1, a telescopic rod 25 slidably fitted with the guide cylinder 24, and a roller 22 arranged at one end of the telescopic rod 25 located outside the guide cylinder 24, and the end of the telescopic rod 25 away from the roller 22 is fixed to a boss 2401 slidably arranged in the guide cylinder 24; a third cylindrical spring 23 is also provided inside the guide cylinder 24 and is sleeved on the outer periphery of the telescopic rod 25, and the two ends of the third cylindrical spring 23 are respectively connected to the inner wall of the guide cylinder 24 and the boss 2401, and a ring body 26 concentric with the turntable 1 is also fixed in the cabinet 31, and four limiting protrusions 2601 are equidistantly provided on the ring body 26 along the circumference, and the roller 22 abuts against the limiting protrusion 2601.

[0031] When the threaded drive assembly works in the forward direction, the ratchet plate 18 moves along with the transverse plate 13. During this process, the ratchet 21 does not rotate. On the contrary, when the threaded drive assembly works in the reverse direction, the ratchet on the ratchet plate 18 will cooperate with the ratchet 21 when passing through the ratchet 21, so that the ratchet 21 drives the turntable 1 to rotate 90°; further, the limiting protrusion 2601 is arranged in a "U" shape, and a recess adapted to the roller 22 is formed in the middle part thereof, and inclined surfaces are formed on both sides. Whenever the turntable 1 rotates, the roller 22 is transferred to the recess in the middle part of an adjacent limiting protrusion 2601. Under the elastic action of the third column spring 23, the turntable 1 can be effectively positioned to ensure the accuracy of the deflection of the turntable 1.

[0032] Please refer again Figure 4 , Figure 5 as well as Figure 7 The pushing mechanism includes two guide columns 4 fixed on the mounting seat 2, a lifting plate 5 slidably connected to the two guide columns 4, and a push plate 8 slidably embedded in the supporting seat 3; the outer periphery of the guide column 4 is sleeved with a first cylindrical spring 6, the two ends of the first cylindrical spring 6 are respectively connected to the mounting seat 2 and the lifting plate 5, and the lifting plate 5 is connected to the push plate 8 through a connecting rod 7, the two ends of the connecting rod 7 are respectively rotatably connected to the lifting plate 5 and the push plate 8, and the side of the lifting plate 5 is also fixedly provided with a protruding plate 501 that cooperates with the pressure mechanism.

[0033] The pressure mechanism includes a guide plate 29 fixed on the top wall of the cabinet 31 and a sleeve plate 30 slidably fitted with the guide plate 29. The sleeve plate 30 is connected to the transverse plate 13 through a sliding matching structure, and a pressing arm 3001 is fixedly provided on the side of the sleeve plate 30 facing the unloading station to match the protruding plate 501. The sliding matching structure includes a follower rod 27 fixedly connected to the transverse plate 13 and two follower plates 28 fixedly mounted on the sleeve plate 30. A driving column 2701 is fixed to one end of the follower rod 27 away from the transverse plate 13. A sliding groove adapted to the driving column 2701 is provided on the follower plate 28. The driving column 2701 passes through the sliding groove and is slidably connected to the follower plate 28. The sliding groove includes a straight through groove 2801 and an inclined through groove 2802 connected to each other.

[0034] During the forward operation of the threaded drive assembly, the follower rod 27 moves along with the transverse plate 13, so the drive column 2701 slides in the straight through slot 2801 and the inclined through slot 2802 in turn, and the drive column 2701 slides with the driven plate 28 through the inclined through slot 2802, thereby prompting the driven plate 28 to drive the sleeve plate 30 to move downward on the guide plate 29, and accordingly, the pressing arm 3001 presses the lifting plate 5 downward through the protruding plate 501, and the lifting plate 5 slides up and down on the two guide columns 4, and pushes the push plate 8 to slide in the support seat 3 away from the mounting seat 2 through the connecting rod 7, and the push plate 8 pushes out the chip that has been welded and tested to complete the unloading.

[0035] As another embodiment of the present invention, application of the wire bonding equipment based on multi-station positioning in TOLL packaging is also proposed.

[0036] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A wire welding device based on multi-station positioning, comprising a cabinet (31), wherein four stations are arranged equidistantly along the circumference of the cabinet (31), which are a loading station, a welding station, a testing station and a unloading station arranged in sequence; characterized in that: Also includes: A turntable (1) is rotatably mounted in the cabinet (31); four mounting seats (2) are fixed on the turntable (1) at equal intervals along the circumference; a supporting seat (3) for receiving a chip to be welded is fixed on the side of the mounting seat (2); a pushing mechanism is also provided on the mounting seat (2); the pushing mechanism works when located at the unloading station and is used to push the chip that has been welded and tested off the supporting seat (3); the pushing mechanism cooperates with a pressure mechanism arranged on the top wall of the cabinet (31); a loading mechanism is installed in the cabinet (31) and is located at the loading station; the loading mechanism is used to transport the chip to the supporting seat (3) and cooperates with the pressure mechanism; the loading mechanism is also connected to a one-way transmission mechanism; the one-way transmission mechanism is triggered after the chip is transported and causes the turntable (1) to rotate 90 degrees.

2. The wire welding equipment based on multi-station positioning according to claim 1, characterized in that: The loading mechanism comprises a bracket (9) fixed in the cabinet (31) and a storage box (10) arranged on the bracket (9) for stacking chips, and the bracket (9) is provided with two strip-shaped through grooves (901); the loading mechanism also comprises a transverse plate (13) movably arranged at the lower part of the bracket (9) through two groups of threaded drive components, and the transverse plate (13) is provided with two vertical arms (16) adapted to the strip-shaped through grooves (901) through two groups of elastic connection components, and the vertical arms (16) pass through the strip-shaped through grooves (901).

3. The wire welding equipment based on multi-station positioning according to claim 2 is characterized in that: The elastic connection assembly comprises a column (14) slidably arranged on the transverse plate (13), a second cylindrical spring (15) sleeved on the outer circumference of the column (14), the vertical arm (16) is fixed to the upper end of the column (14), and the lower end of the column (14) is fixedly connected to a transverse column (17); wherein the two ends of the transverse column (17) are respectively connected to a group of limiting structures installed on the bracket (9), and a round table (1401) is also fixedly provided on the column (14), and one end of the second cylindrical spring (15) is connected to the round table (1401), and the other end is connected to the transverse plate (13).

4. The wire welding equipment based on multi-station positioning according to claim 3 is characterized in that: The limiting structure comprises a limiting plate (19) fixedly mounted on the bracket (9), the limiting plate (19) being provided with a groove body adapted to the transverse column (17), the transverse column (17) extending into the groove body and being slidably connected to the limiting plate (19); wherein the groove body comprises a first groove (1901), a second groove (1902), a third groove (1903), a fourth groove (1904) and a fifth groove (1905) connected to each other, an end of the fifth groove (1905) away from the fourth groove (1904) being connected to a connection between the first groove (1901) and the second groove (1902), and a movable part (20) being hingedly connected in one end of the fifth groove (1905) away from the fourth groove (1904), and a rotating shaft of the movable part (20) being connected to a torsion spring.

5. The wire welding equipment based on multi-station positioning according to claim 2, characterized in that: The one-way transmission mechanism comprises a ratchet wheel (21) fixedly mounted on the rotating shaft of the turntable (1) and a ratchet plate (18) fixedly connected to the transverse plate (13); when the transverse plate (13) moves away from the turntable (1), the ratchets on the ratchet plate (18) can cooperate with the ratchet wheel (21) to cause the turntable (1) to rotate; and the rotating shaft of the turntable (1) is also connected to an elastic positioning structure.

6. The wire welding equipment based on multi-station positioning according to claim 5, characterized in that: The elastic positioning structure comprises a guide cylinder (24) fixed on the rotating shaft of the turntable (1), a telescopic rod (25) slidably fitted with the guide cylinder (24), and a roller (22) provided at one end of the telescopic rod (25) located outside the guide cylinder (24), and one end of the telescopic rod (25) away from the roller (22) is fixed to a boss (2401) slidably provided inside the guide cylinder (24); wherein the guide cylinder (24) is further provided with a There is a third cylindrical spring (23) sleeved on the outer circumference of the telescopic rod (25), and the two ends of the third cylindrical spring (23) are respectively connected to the inner wall of the guide cylinder (24) and the boss (2401). A ring body (26) concentric with the turntable (1) is also fixed in the cabinet (31), and four limiting protrusions (2601) are equidistantly provided on the ring body (26) along the circumference, and the roller (22) abuts against the limiting protrusions (2601).

7. The wire welding equipment based on multi-station positioning according to claim 2, characterized in that: The push mechanism comprises two guide columns (4) fixed on the mounting seat (2), a lifting plate (5) slidably connected to the two guide columns (4), and a push plate (8) slidably engaged in the supporting seat (3); wherein the outer periphery of the guide columns (4) is sleeved with a first cylindrical spring (6), the two ends of the first cylindrical spring (6) are respectively connected to the mounting seat (2) and the lifting plate (5), and the lifting plate (5) is connected to the push plate (8) via a connecting rod (7), the two ends of the connecting rod (7) are respectively rotatably connected to the lifting plate (5) and the push plate (8), and the side of the lifting plate (5) is also fixedly provided with a protruding plate (501) cooperating with the pressure mechanism.

8. The wire welding equipment based on multi-station positioning according to claim 7, characterized in that: The pressure mechanism comprises a guide plate (29) fixed on the top wall of the cabinet (31) and a sleeve plate (30) slidably fitted with the guide plate (29); the sleeve plate (30) is connected to the transverse plate (13) via a sliding fitting structure, and a pressing arm (3001) fitting with the protruding plate (501) is fixedly provided on one side of the sleeve plate (30) facing the unloading station.

9. The wire welding equipment based on multi-station positioning according to claim 8, characterized in that: The sliding matching structure comprises a follower rod (27) fixedly connected to the transverse plate (13) and two follower plates (28) fixedly mounted on the sleeve plate (30); a driving column (2701) is fixed to one end of the follower rod (27) away from the transverse plate (13); a sliding groove adapted to the driving column (2701) is provided on the follower plate (28); the driving column (2701) passes through the sliding groove and is slidably connected to the follower plate (28); the sliding groove comprises a connected straight through groove (2801) and an inclined through groove (2802).

10. Application of the wire bonding equipment based on multi-station positioning according to any one of claims 1 to 9 in TOLL packaging.

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