Spacing-adjustable rapid tinning device applied to electric connector

Abstract

The invention belongs to the technical field of electric connector machining, and particularly relates to a distance-adjustable rapid tinning device applied to an electric connector, the distance-adjustable rapid tinning device comprises a clamping mechanism, a module mechanism driving the clamping mechanism to move in the vertical direction and a tinning pot arranged below the clamping mechanism, and the clamping mechanism comprises two clamping pieces arranged oppositely. According to the technical scheme, the semi-automatic tinning device is simple in structure, flexible, adjustable, accurate and controllable, the distance between the pressing blocks can be changed, tinning quality is improved, consistency is ensured, the device can accurately control various parameters in the tinning process, and inconsistency of tinning quality caused by uneven technical levels of manual operation is eliminated; in the tin coating process of the connector, the tin coating time is accurately controlled, and the tip pulling phenomenon is effectively avoided; the intruding depth of the pins is accurately controlled, and the phenomenon that the distance between the pins of the connector is small, tin liquid flows between the pins in the tinning process, and consequently tin connection occurs between the adjacent pins is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of electric connector processing, and in particular relates to a quick tinning device with adjustable spacing applied to electric connectors. Background Art

[0002] Connectors play a pivotal role in many fields such as aviation, aerospace, electronic weapons, ships, communications, new energy, petroleum, rail transportation, etc. Tinning the connector pins is a key process to ensure the quality and reliability of the connector.

[0003] At present, the traditional tinning method mainly relies on manual operation. During the manual tinning process, the risk of product quality problems will increase due to the large differences in skill levels and operating habits of different operators and the fact that manual operation is easily interfered by external factors. For example, during the tinning process, when the tin liquid comes into contact with the connector contacts, parameters such as the contact time are not properly controlled, resulting in the connector contacts (pins) being pulled pointed or bridging.

[0004] With the stringent requirements for high quality and high reliability of electronic components in the field of high-precision technology, there is an urgent need for a device that can accurately tin-plate connector pins to solve the problems of pin tipping and tin connection in the current tin-plate process. Summary of the invention

[0005] The present invention aims at solving the problems in the prior art and proposes the following technical solutions:

[0006] A quick tinning device with adjustable spacing applied to an electrical connector comprises a clamping mechanism, a module mechanism driving the clamping mechanism to move in the up and down directions, and a tinning pot arranged below the clamping mechanism, wherein the clamping mechanism comprises two clamping members arranged opposite to each other;

[0007] The clamping member comprises a pressing block, a rear shell, a front shell, a top cover and a compression spring, wherein a trapezoidal cavity with an opening at the lower end is formed between the rear shell, the front shell and the top cover, wherein the cross-sectional width of the trapezoidal cavity increases from bottom to top, and the outer side edges of the two trapezoidal cavities gradually move away from each other from bottom to top;

[0008] The upper end of the pressing block is slidably matched with the trapezoidal cavity, and the lower end thereof extends through the opening to the outside of the trapezoidal cavity. A clamping space for clamping the connector is formed between the lower ends of the two pressing blocks located outside the trapezoidal cavity, and the compression spring is assembled between the pressing block and the top cover;

[0009] The module mechanism drives the clamping mechanism for clamping the connector to move in the up and down directions, wherein the connector is kept in the tinning pot for less than 1 second to complete the tinning operation.

[0010] As a preferred embodiment of the above technical solution, the end surfaces of the two pressing blocks close to each other are both provided with a convex trapezoidal platform 1, and the end surfaces of the two pressing blocks away from each other are both provided with a convex trapezoidal platform 2, and the convex trapezoidal platform 1 and the convex trapezoidal platform 2 are both distributed at the upper end of the pressing block;

[0011] The rear shell is provided with a first inwardly concave trapezoidal groove matching the first outwardly convex trapezoidal platform, and the front shell is provided with a second inwardly concave trapezoidal groove matching the second outwardly convex trapezoidal platform. The second inwardly concave trapezoidal groove is distributed at the upper end of the front shell.

[0012] As a preferred embodiment of the above technical solution, the clamping mechanism further includes an adjusting member for driving the two clamping members to move closer to or away from each other;

[0013] The adjusting member comprises a ball head fixing block, a rotating screw, a ball head screw and a fixing bracket, wherein the ball head fixing block is assembled on the front shell, the ball head fixing block is rotatably matched with the ball head screw, the internal thread of the ball head screw is matched with the rotating screw, and the rotating screw is connected with the fixing bracket;

[0014] The fixing bracket is connected to the output end of the module mechanism, and a notch is provided on the fixing bracket. After the front shell and the rear shell pass through the notch, the top cover is slidably matched with the fixing bracket.

[0015] As a preferred embodiment of the above technical solution, a round boss is provided at the upper end of the pressing block, and the compression spring is sleeved on the round boss;

[0016] Positioning blocks are arranged on the opposite end surfaces of the two pressing blocks, and the positioning blocks are located outside the trapezoidal cavity.

[0017] As a preferred embodiment of the above technical solution, a knob thread opening is provided on the top cover, and a spring pre-tightening knob is threadedly matched in the knob thread opening.

[0018] As a preferred embodiment of the above technical solution, the module mechanism includes two rear baffles distributed on both sides of the clamping mechanism, the rear baffle is provided with a longitudinally distributed profile body, the upper end of the profile body is equipped with a motor mounting plate, a micro motor is installed on the motor mounting plate, the output end of the micro motor is connected to a ball screw pair through a single-mode coupling, and the lower end of the ball screw pair is rotatably matched with the rear baffle through a deep groove ball bearing;

[0019] The ball screw pair is threadedly matched with a slide seat, a slide seat support block is arranged on the slide seat, a micro-rail pair is arranged on the profile body, and the slide seat support block is slidably matched with the micro-rail pair.

[0020] As a preferred embodiment of the above technical solution, a sensor frame is installed in the lower area of ​​the profile body, an LD photoelectric switch is installed on the sensor frame, and a sensor sheet is arranged on the slide seat.

[0021] As a preferred embodiment of the above technical solution, an anti-collision rubber is provided on the end surface of the rear baffle opposite to the sliding seat.

[0022] As a preferred embodiment of the above technical solution, a bearing mounting seat is assembled on the profile body, the ball screw pair is rotatably matched with the bearing mounting seat through a deep groove ball bearing, and an anti-collision rubber is provided on the end surface of the bearing mounting seat opposite to the sliding seat.

[0023] As a preferred embodiment of the above technical solution, it also includes a bottom plate, and the module mechanism and the tinning pot are both installed on the upper end surface of the bottom plate.

[0024] The beneficial effects of the present invention are:

[0025] The technical solution provides a semi-automatic tinning device with a simple structure, flexible and adjustable, precise and controllable, and variable distance between pressing blocks. 1. Improve the quality of tinning and ensure consistency: the device can accurately control various parameters in the tinning process, and eliminate the inconsistency of tinning quality caused by uneven technical levels of manual operation; in the connector tinning process, the tinning time is accurately controlled to effectively avoid the phenomenon of pulling points formed due to excessive flow of tin liquid on the pin surface due to the long contact time between the pin and the tin liquid; the pin penetration depth is accurately controlled to avoid the small distance between the connector pins, and the tin liquid flows between the pins during the tinning process, resulting in the phenomenon of tinning between adjacent pins.

[0026] 2. Reduce costs, increase efficiency, and process quickly: Compared with manual operation, the tinning operation can be completed more quickly and stably, shortening the production cycle, reducing labor costs, reducing the scrap rate, reducing scrap caused by quality problems, and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The structure diagram of the quick tinning device with adjustable spacing applied to the electrical connector in Example 1 is shown;

[0028] Figure 2 What is shown is a three-dimensional structural schematic diagram of the clamping mechanism in Example 1;

[0029] Figure 3 What is shown is a cross-sectional schematic diagram of the internal structure of the clamping mechanism in Example 1;

[0030] Figure 4 Shown is an exploded view of the clamping mechanism in Example 1;

[0031] Figure 5 What is shown is a schematic diagram of the structure of the module mechanism in Example 1 from a first viewing angle;

[0032] Figure 6 What is shown is a schematic diagram of the structure of the module mechanism in Example 1 from a second viewing angle;

[0033] Figure 7 It shows Figure 6 A magnified schematic diagram of the structure in the middle.

[0034] Reference numerals: clamping mechanism 1; pressing block 11; convex trapezoidal platform 1 111; convex trapezoidal platform 2 112; round boss 113; positioning block 114; rear shell 12; concave trapezoidal groove 1 121; ball head fixing block 13; rotating screw 14; ball head screw 15; fixing bracket 16; notch 161; front shell 17; concave trapezoidal groove 2 171; top cover 18; knob threaded opening 181; compression spring 19; spring preload knob 110; cavity 120;

[0035] Module mechanism 2; rear baffle 21; LD photoelectric switch 22; sensor frame 23; sensor sheet 24; profile body 25; anti-collision rubber 1 26; deep groove ball bearing 1 27; ball screw pair 28; slide seat 29; bearing mounting seat 210; single-mode coupling 211; motor mounting plate 212; micro motor 213; anti-collision rubber 2 214; deep groove ball bearing 2 215; slide seat support block 216; micro track pair 217;

[0036] Tinning pot 3;

[0037] Bottom plate 4;

[0038] Connector 5. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0040] Example 1

[0041] like Figure 1 As shown, a spacing-adjustable rapid tinning device applied to an electrical connector comprises a clamping mechanism 1, a module mechanism 2 driving the clamping mechanism 1 to move in the up-down direction, a tinning pot 3 arranged below the clamping mechanism 1, and a base plate 4. The module mechanism 2 and the tinning pot 3 are both installed on the upper end surface of the base plate 4. The clamping mechanism 1, the module mechanism 2, the tinning pot 3 and the base plate 4 constitute a complete spacing-adjustable rapid tinning device applied to an electrical connector. In this embodiment, the various components of the clamping mechanism 1 are made of stainless steel.

[0042] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the clamping mechanism 1 includes two clamping members arranged opposite to each other; the clamping member includes a pressing block 11, a rear shell 12, a front shell 17, a top cover 18 and a compression spring 19, and a trapezoidal cavity 120 with an open lower end is formed between the rear shell 12, the front shell 17 and the top cover 18, and the cross-sectional width of the trapezoidal cavity 120 increases from bottom to top, and the outer side edges of the two trapezoidal cavities 120 gradually move away from each other from bottom to top;

[0043] The upper end of the pressing block 11 is slidably matched with the trapezoidal cavity 120, and the lower end extends through the opening to the outside of the trapezoidal cavity 120. The two pressing blocks 11 are located between the lower ends outside the trapezoidal cavity 120 to form a clamping space for clamping the connector 5, and the compression spring 19 is assembled between the pressing block 11 and the top cover 18; when the pressing block 11 is pushed upward, the pressing block 11 moves toward the front shell 17, that is, the two pressing blocks 11 move away from each other. At the same time, under the action of the compression spring 19 and the gravity of the pressing block 11 itself, the two pressing blocks 11 have a tendency to move downward and approach each other, thereby achieving the effect of clamping the connector 5 and preventing the connector 5 from falling out of the clamping mechanism 1.

[0044] The module mechanism 2 drives the clamping mechanism 1 that clamps the connector 5 to move in the up and down directions, wherein the connector 5 remains in the tinning pot 3 for less than 1 second to complete the tinning operation.

[0045] The technical solution of the present invention is a spacing-adjustable rapid tinning device for electrical connectors. During the tinning operation, the connector 5 is installed in the clamping space, and flux is manually applied to the pins of the connector 5. The module mechanism 2 drives the clamping mechanism 1 to move downward until the pins of the connector 5 are inserted into the tinning pot 3 to a predetermined length. The connector 5 remains in the tinning pot 3 for less than 1 second, and the module mechanism 2 drives the clamping mechanism 1 to move upward, and the tinning operation of one connector 5 is completed.

[0046] The technical solution provides a semi-automatic tinning device with a simple structure, flexible and adjustable, precise and controllable, and variable distance between pressing blocks 11. 1. Improve the quality of tinning and ensure consistency: the device can accurately control various parameters in the tinning process, and eliminate the inconsistency of tinning quality caused by uneven technical levels of manual operation; in the connector tinning process, the tinning time is accurately controlled to effectively avoid the phenomenon of pulling points formed due to excessive flow of tin liquid on the pin surface due to the long contact time between the pin and the tin liquid; the pin penetration depth is accurately controlled to avoid the small distance between the connector pins, and the tin liquid flows between the pins during the tinning process, resulting in the phenomenon of tin connection between adjacent pins.

[0047] 2. Reduce costs, increase efficiency, and process quickly: Compared with manual operation, the tinning operation can be completed more quickly and stably, shortening the production cycle, reducing labor costs, reducing the scrap rate, reducing scrap caused by quality problems, and reducing production costs.

[0048] In order to realize the sliding cooperation between the pressing block 11 and the cavity 120, and when the pressing block 11 moves upward, the two pressing blocks 11 are required to be away from each other, such as Figure 2 , Figure 3 , Figure 4 As shown, the end surfaces of the two pressing blocks 11 close to each other are both provided with a convex trapezoidal platform 1 111, and the end surfaces of the two pressing blocks 11 away from each other are both provided with a convex trapezoidal platform 2 112, and the convex trapezoidal platform 1 111 and the convex trapezoidal platform 2 112 are both distributed at the upper end of the pressing block 11;

[0049] The rear shell 12 is provided with an inwardly concave trapezoidal groove 121 matching the outwardly convex trapezoidal platform 111. In order to meet the position difference of the pressure block 11 moving toward the side of the front shell 17, the inwardly concave trapezoidal groove 121 has a relatively high depth. The front shell 17 is provided with an inwardly concave trapezoidal groove 171 matching the outwardly convex trapezoidal platform 112. The inwardly concave trapezoidal groove 171 is distributed at the upper end of the front shell 17.

[0050] In this embodiment, the convex trapezoidal platform 111 is slidably matched with the concave trapezoidal groove 121, and the convex trapezoidal platform 112 is slidably matched with the concave trapezoidal groove 171. When the pressure block 11 is pushed upward, the pressure block 11 moves toward one side of the front shell 17, that is, the two pressure blocks 11 move away from each other, and the connector 5 is placed between the two pressure blocks 11. Under the action of the compression spring 19 and the gravity of the pressure blocks 11 themselves, the two pressure blocks 11 have a tendency to move downward and approach each other, thereby achieving a clamping effect on the connector 5.

[0051] At the same time, the convex trapezoidal platform 112 in this embodiment is distributed at the upper end of the pressing block 11, and the concave trapezoidal groove 171 is distributed at the upper end of the front shell 17, which limits the moving position of the pressing block 11 to prevent the pressing block 11 from escaping from the cavity 120; the convex trapezoidal platform 111 is distributed at the upper end of the pressing block 11 to avoid affecting the clamping of the connector 5.

[0052] In order to expand the application scope of the device and meet the setting requirements of tinning operations on connectors of different specifications, such as Figure 2 , Figure 3 , Figure 4 As shown, the clamping mechanism 1 also includes an adjusting member that drives the two clamping members to move closer to or away from each other; according to the rectangular electrical connectors of different models and widths to be processed, the distance between the two clamping members is adjusted by the adjusting member to complete the clamping operation of the rectangular electrical connectors of different models and widths.

[0053] Specifically, the adjusting member has a ball head fixing block 13, a rotating screw 14, a ball head screw 15 and a fixed bracket 16. The ball head fixing block 13 is assembled on the front shell 17. The ball head fixing block 13 rotates to match the ball head screw 15. The internal thread of the ball head screw 15 matches the rotating screw 14. The rotating screw 14 is connected to the fixed bracket 16; the fixed bracket 16 is connected to the output end of the module mechanism 2. A slot 161 is opened on the fixed bracket 16. After the front shell 17 and the rear shell 12 pass through the slot 161, the top cover 18 slides and matches with the fixed bracket 16.

[0054] Because one end of the ball screw 15 is threadedly engaged with the rotating screw 14, and the other end is rotationally engaged with the ball fixing block 13, and because the top cover 18 is slidingly engaged with the fixing bracket 16, when the distance between the two clamping parts is adjusted, the two clamping parts are driven to move closer to or farther from each other by rotating the ball screw 15 in the forward or reverse direction. Taking the right clamping part as an example, when the ball screw 15 is rotated in the forward direction, the pressing block 11 moves to the right, that is, the two clamping parts move away from each other, and when the ball screw 15 is rotated in the reverse direction, the pressing block 11 moves to the left, that is, the two clamping parts move away from each other. The left clamping part is set in the opposite way.

[0055] At the same time, in this embodiment, the adjusting member adopts a threaded matching method to achieve the change of the distance between the two clamping members, so that when the distance between the two clamping members is adjusted, the adjustment accuracy is high, ensuring the precision processing of the device.

[0056] At the same time, in order to meet the requirements of the device for tinning different connectors, such as Figure 2 , Figure 3 , Figure 4 As shown, a knob thread opening 181 is provided on the top cover 18 , and a spring pre-tightening knob 110 is threadedly engaged in the knob thread opening 181 .

[0057] By controlling the spring preload knob 110 to rotate at the knob threaded opening 181, the length of the spring preload knob 110 extending into the cavity 120 is adjusted, and the corresponding highest position of the upper end of the compression spring 19 is adjusted, thereby adjusting the size of the preload force of the compression spring 19 to meet the requirements of applying different pressures to different connectors and achieving the best clamping effect for different connectors.

[0058] like Figure 4 As shown, a round boss 113 is provided at the upper end of the pressure block 11, and the compression spring 19 is sleeved on the round boss 113; the lower end position of the compression spring 19 is limited to ensure the stability of the position of the compression spring 19 inside the cavity 120, thereby ensuring the reliability of the operation of the entire device.

[0059] Positioning blocks 114 are provided on the opposite end faces of the two pressing blocks 11. The positioning blocks 114 are located outside the trapezoidal cavity 120. When the connector 5 is clamped, the upper end of the connector 5 is in contact with the positioning block 114, and the position of the connector 5 inside the clamping space is limited, which is beneficial to the rapid and accurate positioning of the connector 5, saving processing time and ensuring processing accuracy.

[0060] In order to solve the setting requirement that the module mechanism 2 drives the clamping mechanism 1 to move in the up and down directions, the output end of the module mechanism 2 is set to be adjustable in the up and down directions, which is specifically shown as follows:

[0061] like Figure 5 , Figure 6 , Figure 7 As shown, the module mechanism 2 includes two rear baffles 21 distributed on both sides of the clamping mechanism 1, and a longitudinally distributed profile body 25 is provided on the rear baffle 21. A motor mounting plate 212 is mounted on the upper end of the profile body 25, and a micro motor 213 is mounted on the motor mounting plate 212. The output end of the micro motor 213 is connected to a ball screw pair 28 through a single-mode coupling 211, and the lower end of the ball screw pair 28 is rotatably matched with the rear baffle 21 through a deep groove ball bearing 27;

[0062] The ball screw pair 28 is threadedly matched with a slide 29, wherein the fixed bracket 16 in the clamping mechanism 1 is assembled on the slide 29, a slide support block 216 is provided on the slide 29, and a micro-rail pair 217 is provided on the profile body 25, and the slide support block 216 and the micro-rail pair 217 are slidably matched.

[0063] In the module mechanism 2, the micro motor 213 is started to drive the ball screw pair 28 to rotate, and the ball screw pair 28 drives the slide 29 to move vertically along the micro track pair 217. The slide 29 moving in the vertical direction drives the clamping mechanism 1 to move synchronously, thereby realizing the setting requirement that the module mechanism 2 drives the clamping mechanism 1 to move in the vertical direction. At the same time, the technical solution adopts the method of driving the ball screw pair 28 to rotate by the micro motor 213 to drive the slide 29 to move in the vertical direction, so that the clamping mechanism 1 has high movement accuracy, ensuring the distance of the connector 5 extending into the inside of the tinning pot 3, thereby ensuring the tinning effect.

[0064] At the same time, in order to further ensure the position accuracy of the slide 29 when it moves in the up and down directions, as Figure 5 , Figure 6 , Figure 7As shown, a sensor frame 23 is installed in the lower area of ​​the profile body 25, and an LD photoelectric switch 22 is installed on the sensor frame 23, wherein the distance of the LD photoelectric switch 22 relative to the rear baffle 21 is adjusted according to actual conditions, so as to achieve the effect of precise tinning of the connector 5, so as to avoid excessive or insufficient tin liquid on the connector pins during the tinning process, and a sensor sheet 24 is arranged on the slide seat 29.

[0065] The coordinated arrangement of the LD photoelectric switch 22 and the induction sheet 24 is used to detect and position the slide seat 29 , thereby ensuring the depth of the connector 5 extending into the tinning pot 3 , thereby ensuring the tinning effect of the connector 5 .

[0066] Furthermore, in order to ensure the smooth operation of the device, shock absorbing and buffering measures are taken for the device, mainly in the following aspects: 1. between the slide seat 29 and the rear baffle 21 below, such as Figure 5 As shown, an anti-collision rubber 26 is provided on the end surface of the rear baffle 21 opposite to the slide seat 29.

[0067] 2. Between the slide 29 and the upper single-mode coupling 211, as Figure 5 , Figure 6 As shown, a bearing mounting seat 210 is assembled on the profile body 25, and the ball screw pair 28 is rotatably matched with the bearing mounting seat 210 through a deep groove ball bearing 215, and an anti-collision rubber 214 is provided on the end surface of the bearing mounting seat 210 opposite to the sliding seat 29.

[0068] When the slide 29 moves downward to the lowest position, it contacts with the anti-collision rubber 1 26, and when the slide 29 moves upward to the highest position, it contacts with the anti-collision rubber 214. The setting of the anti-collision rubber 1 26 and the anti-collision rubber 214 plays a vibration reduction and buffering role when the slide 29 moves in the up and down directions, thereby ensuring the smooth operation of the device and avoiding vibration when the connector 5 is extended into the tinning pot 3, which affects the tinning operation.

[0069] The spacing-adjustable rapid tinning device applied to electrical connectors in the technical solution adopts a module mechanism 2 as a driving device. First, the connector 5 is manually assembled on the clamping mechanism 1, and then flux is applied to the connector pins. The driving device drives the clamping mechanism 1 to drive the connector 5 to move longitudinally to complete a tinning operation. In this embodiment, the tinning time and the pin penetration depth are controlled by a motor to achieve precise control of various parameters in the tinning process, thereby eliminating the problem of inconsistency in tinning quality caused by uneven technical levels in manual operations.

[0070] The above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them.

Claims

1. A quick tinning device with adjustable spacing for use in an electrical connector, comprising a clamping mechanism (1), a module mechanism (2) for driving the clamping mechanism (1) to move in an up-down direction, and a tinning pot (3) arranged below the clamping mechanism (1), characterized in that: The clamping mechanism (1) comprises two clamping members arranged opposite to each other; The clamping member comprises a pressing block (11), a rear shell (12), a front shell (17), a top cover (18) and a compression spring (19); a trapezoidal cavity (120) with an opening at the lower end is formed between the rear shell (12), the front shell (17) and the top cover (18); the cross-sectional width of the trapezoidal cavity (120) increases from bottom to top, and the outer side edges of the two trapezoidal cavities (120) gradually move away from each other from bottom to top; The upper end of the pressing block (11) is slidably matched with the trapezoidal cavity (120), and the lower end thereof extends through the opening to the outside of the trapezoidal cavity (120); a clamping space for clamping the connector (5) is formed between the lower ends of the two pressing blocks (11) located outside the trapezoidal cavity (120); and the compression spring (19) is assembled between the pressing block (11) and the top cover (18); The module mechanism (2) drives the clamping mechanism (1) for clamping the connector (5) to move in the up and down directions, wherein the connector (5) is kept in the tinning pot (3) for less than (1) S to complete the tinning operation.

2. The quick tinning device with adjustable spacing for electrical connectors according to claim 1, characterized in that: The end surfaces of the two pressing blocks (11) close to each other are both provided with an outwardly convex trapezoidal platform 1 (111), and the end surfaces of the two pressing blocks (11) away from each other are both provided with an outwardly convex trapezoidal platform 2 (112), and the outwardly convex trapezoidal platform 1 (111) and the outwardly convex trapezoidal platform 2 (112) are both distributed at the upper end of the pressing block (11); The rear shell (12) is provided with an inner concave trapezoidal groove (121) matching the outer convex trapezoidal platform (111), and the front shell (17) is provided with an inner concave trapezoidal groove (171) matching the outer convex trapezoidal platform (112), and the inner concave trapezoidal groove (171) is distributed at the upper end of the front shell (17).

3. The quick tinning device with adjustable spacing for electrical connectors according to claim 1, characterized in that: The clamping mechanism (1) also includes an adjusting member for driving the two clamping members to move closer to or away from each other; The adjusting member comprises a ball head fixing block (13), a rotating screw rod (14), a ball head screw rod (15) and a fixing bracket (16); the ball head fixing block (13) is assembled on the front shell (17); the ball head fixing block (13) is rotatably matched with the ball head screw rod (15); the internal thread of the ball head screw rod (15) is matched with the rotating screw rod (14); and the rotating screw rod (14) is connected to the fixing bracket (16); The fixed bracket (16) is connected to the output end of the module mechanism (2), and a notch (161) is provided on the fixed bracket (16). After the front shell (17) and the rear shell (12) pass through the notch (161), the top cover (18) and the fixed bracket (16) are slidably matched.

4. The quick tinning device with adjustable spacing for electrical connectors according to claim 1, characterized in that: A round boss (113) is provided at the upper end of the pressing block (11), and the compression spring (19) is sleeved on the round boss (113); Positioning blocks (114) are arranged on opposite end surfaces of the two pressing blocks (11), and the positioning blocks (114) are located outside the trapezoidal cavity (120).

5. The quick tinning device with adjustable spacing for electrical connectors according to claim 1, characterized in that: The top cover (18) is provided with a knob thread opening (181), and a spring pre-tightening knob (110) is threadedly matched in the knob thread opening (181).

6. The quick tinning device with adjustable spacing for electrical connectors according to claim 1, characterized in that: The module mechanism (2) comprises two rear baffles (21) distributed on both sides of the clamping mechanism (1), the rear baffles (21) are provided with a longitudinally distributed profile body (25), the upper end of the profile body (25) is equipped with a motor mounting plate (212), a micro motor (213) is mounted on the motor mounting plate (212), the output end of the micro motor (213) is connected to a ball screw pair (28) through a single-mode coupling (211), and the lower end of the ball screw pair (28) is rotatably matched with the rear baffle (21) through a deep groove ball bearing (27); The ball screw pair (28) is threadedly matched with a slide seat (29), a slide seat support block (216) is arranged on the slide seat (29), a micro track pair (217) is arranged on the profile body (25), and the slide seat support block (216) and the micro track pair (217) are slidably matched.

7. The quick tinning device with adjustable spacing for electrical connectors according to claim 6, characterized in that: A sensor frame (23) is installed in the lower area of ​​the profile body (25), an LD photoelectric switch (22) is mounted on the sensor frame (23), and a sensor sheet (24) is arranged on the slide seat (29).

8. The quick tinning device with adjustable spacing for electrical connectors according to claim 7, characterized in that: An anti-collision rubber (26) is arranged on the end surface of the rear baffle (21) opposite to the slide seat (29).

9. The quick tinning device with adjustable spacing for electrical connectors according to claim 8, characterized in that: A bearing mounting seat (210) is mounted on the profile body (25); the ball screw pair (28) is rotatably matched with the bearing mounting seat (210) via a second deep groove ball bearing (215); and a second anti-collision rubber (214) is provided on the end surface of the bearing mounting seat (210) opposite to the sliding seat (29).

10. The quick tinning device with adjustable spacing for electrical connectors according to claim 1, characterized in that: It also includes a bottom plate (4), and the module mechanism (2) and the tinning pot (3) are both mounted on the upper end surface of the bottom plate (4).

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