Multi-hole solder paste dispensing machine

Abstract

The utility model discloses a multi-hole solder paste dispensing machine, an operating platform is provided with a clamping and positioning device, a solder paste dispensing device and a guide mechanism, a rack is provided with a driving device, the guide mechanism is arranged between the clamping and positioning device and the solder paste dispensing device, and the driving device is in transmission connection with the clamping and positioning device or the solder paste dispensing device. The clamping and positioning device and the tin dispensing device move close to and away from each other, the tin dispensing device comprises a tin dispensing mounting frame, a plurality of tin injection needle tubes, a plurality of hoses, a plurality of injection pumps and a plurality of material barrels, the hoses are connected with the tin injection needle tubes and the injection pumps, the guide mechanism is provided with a plurality of guide holes, and the outer end parts of the tin injection needle tubes are respectively arranged in the guide holes in a penetrating manner. The tin injection needle tubes and the injection pump are connected through the hoses, so that the installation flexibility of the tin injection needle tubes is improved, the minimum distance between the tin injection needle tubes is shortened, tin dispensing is conducted on all key holes in a radiator at a time, and efficiency is improved; guiding is conducted through the guide hole, the accuracy of inserting the tin injection needle tube into the key hole is improved, the success rate is increased, and the application range is widened.

Description

Technical Field

[0001] This utility model relates to the technical field of radiator production equipment, and in particular to a multi-hole solder paste application machine. Background Technology

[0002] A heat sink is a device used to dissipate heat from electronic components. A heat sink has a condenser end and an evaporator end, connected by heat pipes. The condenser end of a heat sink typically consists of multiple spaced and overlapping heat dissipation fins. To fix them and improve heat conduction efficiency, each heat dissipation fin needs to be soldered to the heat pipe via reflow soldering. Therefore, each heat dissipation fin has a keyhole for the heat pipe to pass through. Before soldering, solder paste needs to be applied to the keyholes on each heat dissipation fin. Traditionally, this is done manually, which is difficult to operate due to the small diameter of the keyholes, resulting in low production efficiency. Existing solder paste application machines have a small number of needles with large spacing, allowing only a few keyholes to be soldered at a time. Furthermore, when the spacing between two keyholes is small, a second operation is required, further reducing production efficiency. Additionally, existing solder paste application machines have short needle lengths and lack guiding mechanisms, making it difficult to solder longer heat sinks, limiting their applicability. The needles are also prone to misalignment, leading to soldering failures and a low success rate. Therefore, improvements are necessary. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this invention is to provide a multi-hole solder paste application machine that can simultaneously apply solder to multiple keyholes, thereby improving production efficiency, preventing needle wobbling during solder application, and increasing the success rate.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a multi-hole solder paste dispensing machine, comprising a frame, an operating platform on the frame, a clamping and positioning device, a solder paste dispensing device, and a guiding mechanism on the operating platform, a drive device on the frame, and a guiding mechanism disposed between the clamping and positioning device and the solder paste dispensing device. The drive device is connected to the clamping and positioning device or the solder paste dispensing device for transmission, and the clamping and positioning device and the solder paste dispensing device move closer to and further away from each other.

[0005] The soldering device includes a soldering mounting frame, multiple solder injection needles, multiple hoses, multiple injection pumps, and multiple material tanks. The soldering mounting frame is set on the operating platform. Each solder injection needle is fixedly installed on the soldering mounting frame and faces the guide mechanism. Each injection pump is fixedly installed on the soldering mounting frame. Each material tank is set on the injection pump. Each hose is connected to each solder injection needle and each injection pump.

[0006] The guiding mechanism is provided with multiple guide holes that penetrate the guiding mechanism, and the outer ends of each soldering needle tube are respectively inserted into each guide hole.

[0007] In a further technical solution, the clamping and positioning device is fixedly installed on the operating platform, the soldering device is slidably installed on the operating platform, the operating platform is provided with multiple slide rails at intervals, the lower part of the soldering mounting frame is provided with multiple sliders, each slider is slidably connected to each slide rail, and the driving device is connected to the soldering mounting frame in a transmission manner.

[0008] The guiding mechanism includes a guide frame and a guide plate. The guide frame is fixedly installed between the clamping and positioning device and the soldering device, and the guide plate is movably installed on the guide frame. Each guide hole is opened on the guide plate.

[0009] In a further technical solution, the guide frame is provided with a guide fixing window that runs through the guide frame, the guide plate is embedded in the guide fixing window, and each guide hole has a tapered guide hole at both ends.

[0010] In a further technical solution, a needle mounting bracket is provided on the front side of the soldering mounting bracket. The needle mounting bracket includes a needle upright plate and at least one clamping plate. The clamping plate is fixedly installed on the front side of the needle upright plate. The clamping plate has multiple clamping and fixing holes. The soldering needle passes through the clamping and fixing holes and is clamped and fixed between the needle upright plate and the clamping plate. The needle upright plate has multiple connecting holes. Each soldering needle is connected to each connecting hole, and each connecting hole is connected to each flexible tube.

[0011] In a further technical solution, the inner wall of each connecting hole is provided with an internal thread, the rear end of each connecting hole is threaded with a hose connector, the front end of each connecting hole is threaded with a needle connector, each hose connector is connected to each hose, and each needle connector is connected to each soldering needle.

[0012] In a further technical solution, the clamping and positioning device includes a base plate, a clamping mechanism, and a horizontal and vertical adjustment platform. The base plate is fixedly installed on the operating platform, the horizontal and vertical adjustment platform is fixedly installed on the base plate, the clamping mechanism is fixedly installed on the horizontal and vertical adjustment platform, the guide frame is fixedly installed on the base plate, and the guide plate is located beside the clamping mechanism.

[0013] In a further technical solution, the clamping mechanism includes a substrate, a positioning stage, a longitudinal limiting block, a transverse limiting block, a transverse pressing component, and a vertical pressing component. The substrate is fixedly installed on a horizontal and vertical adjustment stage, the positioning stage is fixedly installed in the middle of the substrate, the transverse limiting block is fixedly installed on the substrate and located in front of the positioning stage, the guide plate is located in front of the positioning stage, the transverse limiting block and the transverse pressing component are respectively disposed on the substrate and located on the left and right sides of the positioning stage, the transverse pressing component moves toward and away from the transverse limiting block, and the vertical pressing component is disposed above the positioning stage and moves toward and away from the positioning stage.

[0014] In a further technical solution, the lateral pressing component includes a heightening block, a lateral driving cylinder, and a lateral pressing plate. The heightening block is fixedly installed on the base plate, the lateral driving cylinder is fixedly installed on the heightening block, and the lateral pressing plate is fixedly installed on the piston rod of the lateral driving cylinder. The lateral pressing plate moves toward and away from the lateral limiting block.

[0015] The vertical pressing component includes a rotary lifting cylinder, which is fixedly installed on the lateral limiting block.

[0016] In a further technical solution, the drive device includes a drive motor, a transmission belt, a drive pulley, a driven pulley, and a lead screw. The drive motor is fixedly mounted on the frame, the drive pulley is fixedly mounted on the output shaft of the drive motor, the drive pulley is connected to the transmission belt, the transmission belt is connected to the driven pulley, the two ends of the lead screw are rotatably mounted on the lower part of the soldering mounting bracket, and the driven pulley has a threaded hole in the middle that passes through it. The driven pulley is threadedly connected to the lead screw.

[0017] In a further technical solution, a protective cover is provided on the upper part of the frame. The protective cover is fixedly installed on the operating platform. An operating window is opened on the front side of the protective cover. Electronic fence sensors are respectively installed on the two opposite sides of the operating window. The two electronic fence sensors sense each other and cooperate.

[0018] The advantages of this invention compared to existing technologies are as follows: Connecting the soldering needle and injection pump via a flexible tube improves the flexibility of needle installation and shortens the minimum distance between adjacent needles. This not only increases the number of needles but also allows for simultaneous soldering of closely spaced keyholes, enabling soldering of all keyholes on the radiator in one operation, thus improving efficiency. Furthermore, the guide holes of the guiding mechanism guide each needle, preventing vibration at the distal end during movement and thus improving the accuracy of needle insertion into the keyhole, increasing the success rate of soldering, and enabling soldering of smaller diameter keyholes, thereby expanding the applicability. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is the utility model Figure 1 Enlarged view of part A;

[0022] Figure 3 This is an exploded view of the clamping and positioning device and the guiding mechanism of this utility model;

[0023] Figure 4This is an exploded view of the syringe mounting bracket of this utility model;

[0024] Figure 5 This is a schematic diagram of the soldering device of this utility model;

[0025] Figure 6 This is a cross-sectional view of the guide plate of this utility model.

[0026] In the picture:

[0027] 1. Frame, 11. Operating platform, 12. Slide rail, 13. Protective cover, 14. Electronic fence sensor;

[0028] 2 clamping and positioning device, 21 base plate, 22 clamping mechanism, 221 base plate, 222 positioning stage, 223 longitudinal limiting block, 224 transverse limiting block, 225 heightening block, 226 transverse drive cylinder, 227 transverse pressing plate, 228 rotary lifting cylinder, 23 horizontal and vertical adjustment stage.

[0029] 3. Soldering device, 31. Soldering mounting bracket, 311. Slider, 32. Needle tube upright plate, 321. Connecting hole, 33. Clamping plate, 331. Clamping fixing hole, 34. Hose connector, 35. Needle connector, 36. Soldering needle, 37. Hose, 38. Injection pump, 39. Material tank.

[0030] 4. Guide mechanism, 41. Guide frame, 411. Guide fixing window, 42. Guide plate, 421. Guide hole, 422. Guide hole;

[0031] 5. Drive unit, 51. Drive motor, 52. Transmission belt, 53. Drive pulley, 54. Driven pulley, 55. Lead screw. Detailed Implementation

[0032] The following are merely preferred embodiments of the present invention and do not limit the scope of protection of the present invention.

[0033] A multi-hole solder paste machine, such as Figures 1 to 6As shown, the device includes a frame 1, an operating platform 11, a clamping and positioning device 2, a soldering device 3, and a guide mechanism 4. The frame 1 is equipped with a drive device 5. The guide mechanism 4 is positioned between the clamping and positioning device 2 and the soldering device 3. The drive device 5 is connected to either the clamping and positioning device 2 or the soldering device 3, allowing them to move closer and further apart. The soldering device 3 includes a soldering mounting bracket 31, multiple soldering needles 36, multiple flexible tubes 37, and multiple injection pumps 38. The system includes multiple material barrels 39, a soldering mounting bracket 31 mounted on the operating platform 11, each soldering needle 36 fixedly mounted on the soldering mounting bracket 31 and facing the guide mechanism 4, each injection pump 38 fixedly mounted on the soldering mounting bracket 31, each material barrel 39 respectively mounted on the injection pump 38, and each hose 37 respectively connected to each soldering needle 36 and each injection pump 38; the guide mechanism 4 is provided with multiple guide holes 421 penetrating the guide mechanism 4, and the outer ends of each soldering needle 36 are respectively inserted into each guide hole 421.

[0034] Traditional multi-hole solder paste application machines have a small number of soldering needles 36, a large minimum distance between adjacent soldering needles 36, and low density. For heatsinks with a large number of keyholes, soldering cannot be completed in one go, requiring multiple soldering operations, resulting in low efficiency. Furthermore, the short length of the soldering needles 36, caused by shaking during movement, makes it difficult to solder longer heatsinks, leading to a low success rate. This invention, however, connects the soldering needles 36 and the injection pump 38 via a flexible tube 37, thereby improving the installation flexibility of the soldering needles 36 and shortening the minimum distance between adjacent soldering needles 36. This not only increases the number of soldering needles... The number of 36 allows for simultaneous soldering of keyholes that are close together, enabling all keyholes on the heatsink to be soldered in one go, thus improving soldering efficiency. Each soldering needle 36 is independently connected to the injection pump 38 and the material tank 39, allowing each soldering needle 36 to solder individually, improving the accuracy of solder paste injection. Each soldering needle 36 is guided by the guide holes 421 of the guide mechanism 4, preventing vibration at the distal end of the soldering needle 36 during movement and thus preventing it from shifting. This improves the accuracy of the soldering needle 36 being inserted into the keyhole, increases the success rate of soldering, and enables soldering of keyholes with smaller diameters, expanding the scope of application.

[0035] Specifically, the clamping and positioning device 2 is fixedly installed on the operating platform 11, the soldering device 3 is slidably installed on the operating platform 11, the operating platform 11 is provided with multiple slide rails 12 at intervals, the lower part of the soldering mounting frame 31 is provided with multiple sliders 311, each slider 311 is slidably connected to each slide rail 12, and the driving device 5 is connected to the soldering mounting frame 31 in a transmission manner; the guiding mechanism 4 includes a guide frame 41 and a guide plate 42, the guide frame 41 is fixedly installed between the clamping and positioning device 2 and the soldering device 3, the guide plate 42 is movably installed on the guide frame 41, and each guide hole 421 is opened in the guide plate 42. The clamping and positioning device 2 is relatively fixed, while the soldering device 3 is relatively movable, facilitating automatic loading and unloading and adapting to heat sinks of different lengths, thus improving the adaptability range. The driving device 5 drives the soldering device 3 to move towards the clamping and positioning device 2, and the soldering needle 36 is inserted into the keyhole until the needle tip of the soldering needle 36 is inserted into the last keyhole. The driving device 5 then drives the soldering device 3 to move away from the clamping and positioning device 2. At the same time, the injection pump 38 operates, squeezing the solder paste in the material tank 39 from the soldering needle 36. As the soldering device 3 moves, the soldering needle 36 gradually moves out of the keyhole, completing the soldering process. By setting multiple slide rails 12 and sliders 311, the stability of the soldering device 3 during movement is improved, preventing shaking, while reducing friction, reducing the operating load of the driving device 5, reducing energy consumption, and resulting in a simple structure and low cost.

[0036] Specifically, the guide frame 41 has a guide fixing window 411 that passes through the guide frame 41, and the guide plate 42 is embedded in the guide fixing window 411. Each guide hole 421 has a tapered guide hole 422 at both ends. The soldering needle 36 always remains in the state of passing through the guide hole 421 to prevent it from moving out and hitting the guide plate 42 during repeated soldering. The guide hole 421 is set on the guide plate 42 to facilitate the replacement of the corresponding guide plate 42 according to different heat sinks, so as to be suitable for different types of heat sinks. During installation, the soldering needle 36 is guided through the guide hole 422 to facilitate the passing of the soldering needle 36 through the guide hole 421, thereby improving the convenience of installation.

[0037] Specifically, a needle mounting bracket is provided on the front side of the soldering mounting bracket 31. The needle mounting bracket includes a needle upright plate 32 and at least one clamping plate 33. The clamping plate 33 is fixedly installed on the front side of the needle upright plate 32. The clamping plate 33 has multiple clamping and fixing holes 331. The soldering needle 36 passes through the clamping and fixing holes 331 and is clamped and fixed between the needle upright plate 32 and the clamping plate 33. The needle upright plate 32 has multiple connecting holes 321. Each soldering needle 36 is connected to each connecting hole 321, and each connecting hole 321 is connected to each flexible tube 37. The needle mounting bracket is used to fix the soldering needles 36. First, each soldering needle 36 is inserted into each clamping and fixing hole 331, and then the clamping plate 33 is fixed on the needle upright plate 32 to improve the fixing strength of the soldering needles 36 and prevent the soldering needles 36 from shaking when moving. When soldering different types of heat sinks, only the needle mounting bracket needs to be replaced. It is easy to operate and has wide applicability.

[0038] Specifically, each connecting hole 321 has an internal thread on its inner wall. A hose connector 34 is threaded to the rear end of each connecting hole 321, and a needle connector 35 is threaded to the front end of each connecting hole 321. Each hose connector 34 is connected to a hose 37, and each needle connector 35 is connected to a soldering needle. The connecting hole 321 and hose 37 are connected via the hose connector 34, one end of which is threaded and the other end is a pagoda-shaped end for easy connection to the hose 37. The connecting hole 321 and soldering needle 36 are connected via the needle connector 35, improving the tightness of the connection, preventing leakage, and improving soldering accuracy. During installation, the needle connector 35 is first installed on the connecting hole 321, then the soldering needle 36 is installed on the needle connector 35, and finally the clamping plate 33 is installed. The clamping plate 33 provides secondary fixation, further improving the fixation strength.

[0039] Specifically, the clamping and positioning device 2 includes a base plate 21, a clamping mechanism 22, and a horizontal and vertical adjustment platform 23. The base plate 21 is fixedly installed on the operating platform 11, the horizontal and vertical adjustment platform 23 is fixedly installed on the base plate 21, the clamping mechanism 22 is fixedly installed on the horizontal and vertical adjustment platform 23, the guide frame 41 is fixedly installed on the base plate 21, and the guide plate 42 is located beside the clamping mechanism 22. The horizontal and vertical adjustment platform 23 is a precision double-guide rail adjustment platform. The vertical and longitudinal directions of the clamping mechanism 22 are finely adjusted by the horizontal and vertical adjustment platform 23 to ensure that the solder pins 36 are accurately inserted into the keyholes at each point. The heat sink is positioned and secured by the clamping mechanism 22. After the horizontal and vertical adjustment platform 23 is adjusted, loading and unloading operations can be performed only by the clamping mechanism 22, without repeated adjustments, thus improving production efficiency.

[0040] Specifically, the clamping mechanism 22 includes a base plate 221, a positioning stage 222, a longitudinal limiting block 223, a transverse limiting block 224, a transverse pressing component, and a vertical pressing component. The base plate 221 is fixedly installed on the horizontal and vertical adjustment stage 23. The positioning stage 222 is fixedly installed in the middle of the base plate 221. The transverse limiting block 224 is fixedly installed on the base plate 221 and located in front of the positioning stage 222. The guide plate 42 is located behind the positioning stage 222. The transverse limiting block 224 and the transverse pressing component are respectively disposed on the base plate 221 and located on the left and right sides of the positioning stage 222. The transverse pressing component moves closer to and away from the transverse limiting block 224. The vertical pressing component is disposed above the positioning stage 222 and moves closer to and away from the positioning stage 222. The lower part of the heat sink is initially positioned by the positioning stage 222 and then the heat sink is pressed against the longitudinal limiting block 223 to complete the longitudinal positioning. The heat sink is then clamped and positioned in the lateral direction by the transverse limiting block 224 and the transverse pressing component. Finally, the heat sink is pressed and positioned in the vertical direction by the vertical pressing component to achieve triaxial positioning and fixation of the heat sink and improve positioning accuracy.

[0041] Specifically, the lateral pressing assembly includes a heightening block 225, a lateral drive cylinder 226, and a lateral pressing plate 227. The heightening block 225 is fixedly mounted on the base plate 221, the lateral drive cylinder 226 is fixedly mounted on the heightening block 225, and the lateral pressing plate 227 is fixedly mounted on the piston rod of the lateral drive cylinder 226. The lateral pressing plate 227 moves closer to and further away from the lateral limiting block 224. The vertical pressing assembly includes a rotary lifting cylinder 228, which is fixedly mounted on the lateral limiting block 224. When the radiator is positioned on the positioning platform 222 and abuts against the longitudinal limiting block 223, the transverse drive cylinder 226 drives the pressure plate 227 to move toward the radiator until the pressure plate 227 clamps the radiator between the pressure plate 227 and the transverse limiting block 224. At the same time, the rotary lifting cylinder 228 works to press the radiator firmly onto the positioning platform 222. By fixing it with the rotary lifting cylinder 228, sufficient space is left above the radiator during loading and unloading, which is convenient for loading and unloading. The structure is simple and the cost is low.

[0042] Specifically, the drive unit 5 includes a drive motor 51, a transmission belt 52, a drive pulley 53, a driven pulley 54, and a lead screw 55. The drive motor 51 is fixedly mounted on the frame 1, the drive pulley 53 is fixedly mounted on the output shaft of the drive motor 51, the drive pulley 53 is connected to the transmission belt 52, and the transmission belt 52 is connected to the driven pulley 54. The two ends of the lead screw 55 are rotatably mounted on the lower part of the soldering mounting bracket 31. The driven pulley 54 has a threaded hole in the middle, and the driven pulley 54 is threadedly connected to the lead screw 55. The drive motor 51 drives the drive pulley 53 to rotate, the drive pulley 53 drives the driven pulley 54 to rotate through the transmission belt 52, and the driven pulley 54 drives the lead screw 55 to rotate through the threaded hole, thereby driving the soldering mounting bracket 31 to move. The structure is simple, low-cost, and highly reliable.

[0043] Specifically, a protective cover 13 is installed on the upper part of the frame 1, and the protective cover 13 is fixedly installed on the operating platform 11. An operating window is opened on the front side of the protective cover 13, and electronic fence sensors 14 are respectively installed on two opposite sides of the operating window. The two electronic fence sensors 14 sense each other and cooperate. The protective cover 13 protects the soldering device 3 and the clamping and positioning device 2 from the intrusion of external debris or people. During the soldering process, the electronic fence sensors 14 are activated to form an electronic fence to prevent people or debris from entering and causing soldering failure, thereby improving reliability and stability and enhancing safety.

[0044] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A multi-hole solder paste applicator, comprising a frame (1) and an operating platform (11) thereon, characterized in that: The operating platform (11) is equipped with a clamping and positioning device (2), a soldering device (3), and a guiding mechanism (4). The frame (1) is equipped with a drive device (5). The guiding mechanism (4) is located between the clamping and positioning device (2) and the soldering device (3). The drive device (5) is connected to the clamping and positioning device (2) or the soldering device (3) for transmission. The clamping and positioning device (2) and the soldering device (3) move closer and further away. The soldering device (3) includes a soldering mounting frame (31), multiple solder injection needles (36), multiple hoses (37), multiple injection pumps (38), and multiple material tanks (39). The soldering mounting frame (31) is set on the operating platform (11). Each solder injection needle (36) is fixedly installed on the soldering mounting frame (31) and faces the guide mechanism (4). Each injection pump (38) is fixedly installed on the soldering mounting frame (31). Each material tank (39) is set on the injection pump (38). Each hose (37) is connected to each solder injection needle (36) and each injection pump (38). The guide mechanism (4) is provided with multiple guide holes (421) that pass through the guide mechanism (4), and the outer ends of each solder injection needle (36) are respectively inserted into each guide hole (421).

2. The multi-hole solder paste application machine according to claim 1, characterized in that: The clamping and positioning device (2) is fixedly installed on the operating platform (11), the soldering device (3) is slidably installed on the operating platform (11), the operating platform (11) is provided with multiple slide rails (12) at intervals, the lower part of the soldering mounting frame (31) is provided with multiple sliders (311), each slider (311) is slidably connected to each slide rail (12), and the driving device (5) is connected to the soldering mounting frame (31) in a transmission manner. The guiding mechanism (4) includes a guide frame (41) and a guide plate (42). The guide frame (41) is fixedly installed between the clamping and positioning device (2) and the soldering device (3). The guide plate (42) is movably installed on the guide frame (41). Each of the guide holes (421) is opened on the guide plate (42).

3. A multi-hole solder paste application machine according to claim 2, characterized in that: The guide frame (41) has a guide fixing window (411) that passes through the guide frame (41), and the guide plate (42) is embedded in the guide fixing window (411). Each guide hole (421) has a tapered guide hole (422) at both ends.

4. A multi-hole solder paste application machine according to claim 2, characterized in that: The front side of the soldering mounting bracket (31) is provided with a needle mounting bracket, which includes a needle stand plate (32) and at least one clamping plate (33). The clamping plate (33) is fixedly installed on the front side of the needle stand plate (32). The clamping plate (33) has multiple clamping and fixing holes (331). The soldering needle (36) passes through the clamping and fixing holes (331) and is clamped and fixed between the needle stand plate (32) and the clamping plate (33). The needle stand plate (32) has multiple connecting holes (321). Each soldering needle (36) is connected to each connecting hole (321), and each connecting hole (321) is connected to each of the hoses (37).

5. A multi-hole solder paste application machine according to claim 4, characterized in that: Each of the connecting holes (321) has an internal thread on its inner wall. The rear end of each connecting hole (321) is threaded with a hose connector (34). The front end of each connecting hole (321) is threaded with a needle connector (35). Each hose connector (34) is connected to each of the hoses (37). Each needle connector (35) is connected to each soldering needle.

6. A multi-hole solder paste application machine according to any one of claims 2 to 5, characterized in that: The clamping and positioning device (2) includes a base plate (21), a clamping mechanism (22), and a horizontal and vertical adjustment platform (23). The base plate (21) is fixedly installed on the operating platform (11), the horizontal and vertical adjustment platform (23) is fixedly installed on the base plate (21), the clamping mechanism (22) is fixedly installed on the horizontal and vertical adjustment platform (23), the guide frame (41) is fixedly installed on the base plate (21), and the guide plate (42) is located on the side of the clamping mechanism (22).

7. A multi-hole solder paste application machine according to claim 6, characterized in that: The clamping mechanism (22) includes a base plate (221), a positioning table (222), a longitudinal limiting block (223), a transverse limiting block (224), a transverse pressing component, and a vertical pressing component. The base plate (221) is fixedly installed on the horizontal and vertical adjustment table (23). The positioning table (222) is fixedly installed in the middle of the base plate (221). The transverse limiting block (224) is fixedly installed on the base plate (221) and located in front of the positioning table (222). The guide plate (42) is located behind the positioning table (222). The transverse limiting block (224) and the transverse pressing component are respectively disposed on the base plate (221) and located on the left and right sides of the positioning table (222). The transverse pressing component moves closer to and away from the transverse limiting block (224). The vertical pressing component is disposed above the positioning table (222) and moves closer to and away from the positioning table (222).

8. A multi-hole solder paste application machine according to claim 7, characterized in that: The lateral pressing assembly includes a heightening block (225), a lateral driving cylinder (226), and a lateral pressing plate (227). The heightening block (225) is fixedly installed on the base plate (221), the lateral driving cylinder (226) is fixedly installed on the heightening block (225), and the lateral pressing plate (227) is fixedly installed on the piston rod of the lateral driving cylinder (226). The lateral pressing plate (227) moves closer to and further away from the lateral limiting block (224). The vertical pressing assembly includes a rotary lifting cylinder (228), which is fixedly installed on the transverse limiting block (224).

9. A multi-hole solder paste application machine according to claim 1, characterized in that: The drive device (5) includes a drive motor (51), a transmission belt (52), a drive wheel (53), a driven wheel (54), and a lead screw (55). The drive motor (51) is fixedly installed on the frame (1). The drive wheel (53) is fixedly installed on the output shaft of the drive motor (51). The drive wheel (53) is connected to the transmission belt (52) for transmission. The transmission belt (52) is connected to the driven wheel (54) for transmission. The two ends of the lead screw (55) are rotatably installed on the lower part of the soldering mounting bracket (31). The middle part of the driven wheel (54) is provided with a threaded hole that passes through the driven wheel (54). The driven wheel (54) is threadedly connected to the lead screw (55).

10. A multi-hole solder paste application machine according to claim 1, characterized in that: The upper part of the frame (1) is provided with a protective cover (13), which is fixedly installed on the operating platform (11). An operating window is opened on the front side of the protective cover (13), and electronic fence sensors (14) are respectively provided on the two opposite sides of the operating window. The two electronic fence sensors (14) sense each other and cooperate.

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