Detonator riveting point tin wire automatic welding machine

Abstract

The invention belongs to the technical field of electronic detonator processing, and particularly relates to a detonator riveting point tin wire automatic welding machine which comprises a moving track and a wire harness bearing table arranged on the moving track in a sliding mode, and a plurality of groups of bundled wire harnesses are placed on the wire harness bearing table. The wire harness bearing table can drive the wire harness placed at the upper end to move left and right and move front and back along the moving track. A welding frame is fixedly arranged on the rear side of the moving track; soldering efficiency is improved by simultaneously soldering riveting points of a plurality of wire harnesses, pseudo soldering and poor contact of the welding points caused by bending and tilting of the wires are prevented by pressing and positioning the wires before welding, and during welding, two welding points on the same chip are isolated by the partition plate, so that welding quality is improved. And adhesion of welding points can be effectively avoided, and the welding effect is further improved.

Description

Technical Field

[0001] The invention belongs to the technical field of electronic detonator processing, and in particular relates to an automatic tin wire welding machine for riveted points of detonators. Background Art

[0002] In the civil explosives industry, detonators are indispensable detonating equipment, and their production quality and efficiency are of great importance. The welding of the riveted points of detonators is the core link in the entire production process, and the quality of welding directly affects the performance and safety of detonators.

[0003] At present, there are many technical challenges in welding tin wire at the riveted points of detonators. From the perspective of welding principles, it is difficult for traditional welding technology to accurately control the conduction and distribution of heat at the riveted positions. During welding, local temperatures that are too high or too low often occur. If the temperature is too high, it will easily cause the tin wire to melt excessively. The molten tin wire will easily flow to nearby solder joints and cause adhesion problems, affecting the structural form and performance of the detonator; if the temperature is too low, it will cause insufficient welding and a cold weld, resulting in unstable internal connections of the detonator, which will seriously affect the detonation performance.

[0004] In addition, existing welding equipment also has shortcomings in wire feeding control technology, making it difficult to accurately control the amount and speed of tin wire feeding. This results in uneven tin wire usage when welding at the riveted position, further increasing the probability of welding defects such as cold solder joints and adhesion.

[0005] With the continuous advancement of science and technology, automatic welding technology has been widely used in many industries. It is of great significance to develop an automatic welding machine for tin wire at the riveting point of detonators in the civil explosives industry. In summary, the present invention provides an automatic welding machine for tin wire at the riveting point of detonators. Summary of the invention

[0006] In view of the above problems, an embodiment of the present application provides an automatic tin wire welding machine for riveted points of detonators to solve the current technical problem of easy cold soldering and adhesion during tin wire welding at riveted points of detonators.

[0007] In order to achieve the above-mentioned purpose, the embodiment of the present application provides the following technical solutions: an automatic tin wire welding machine for detonator riveting points, comprising a movable track and a wire harness support platform slidably arranged on the movable track, on which multiple groups of wire harnesses are placed; and the wire harness support platform can drive the wire harness placed on the upper end to move left and right and forward and backward along the movable track; a welding frame is fixedly arranged on the rear side of the movable track.

[0008] A fixing plate is arranged on the inner wall in the middle of the welding frame, and a mounting groove penetrating the front side wall is arranged in the middle of the fixing plate; a pushing assembly is arranged in the mounting groove; a feeding assembly is arranged at the upper end of the fixing plate; a plurality of circular through holes are evenly arranged on the transverse section at the upper end of the welding frame and the fixing plate, and the circular through holes on the transverse section of the welding frame correspond one to one with the circular through holes on the fixing plate; welding gun heads are slidingly arranged in the corresponding circular through holes; two welding wire channels distributed on the left and right are arranged inside each welding gun head, and welding wire is arranged inside the welding wire channels; a wire feeding assembly for advancing the quantitative feeding of the welding wire is arranged inside the lower end of the welding gun head, and the wire feeding assembly cooperates with the pushing assembly, and auxiliary components for assisting in tightening the wire harness are also arranged on the front and rear sides of the welding wire.

[0009] The auxiliary components adjacent to each other on the same welding gun head cooperate with each other to isolate the welding point position to prevent adhesion.

[0010] According to a favorable embodiment, the auxiliary component includes an auxiliary channel opened on the lower end surface of the welding gun head and located on the front and rear sides of the welding wire channel; the auxiliary channel is internally threaded with a guide rod, and a pressure column is slidably arranged on the guide rod to press down and position the metal end of the wire harness, and the outer wall of the guide rod is sleeved with a spring, the upper end of the spring is connected to the top inner wall of the auxiliary channel, and the lower end of the spring is connected to the outer wall of the pressure column; the lower end of the pressure column is provided with an arc-shaped pressure groove that matches the outer wall of the wire harness.

[0011] According to a favorable embodiment, the side walls of two adjacent pressure columns on the left and right of the same welding gun head are each provided with an oblique motion column that slides obliquely, and the lower ends of the two adjacent oblique motion columns in front and behind the welding wire channel are jointly provided with a baffle plate; the oblique motion column is slidably arranged inside the pressure column by means of a spring, and the oblique motion column cooperates with the end of the guide rod.

[0012] According to a favorable embodiment, the pushing assembly includes two pushing cylinders respectively fixed on the side walls of the mounting groove, and a transverse plate is fixedly provided at the telescopic ends of the two pushing cylinders. Pushing round rods are evenly provided on the front side walls of the transverse plate, and the front ends of the pushing round rods are hemispherical structures. Several of the pushing round rods correspond one by one to the welding gun heads.

[0013] According to a favorable embodiment, the feed assembly includes an inverted L-shaped bracket installed on the upper end of the fixed plate; two feed cylinders are fixedly provided on the lower end surface of the transverse section of the inverted L-shaped bracket, and a push plate is commonly fixedly provided at the lower ends of the two feed cylinders, and the push plate is connected to the outer walls of all welding gun heads.

[0014] According to a favorable embodiment, a rectangular groove running through from front to back is opened at the lower end of the welding gun head, and vertically downward movable grooves are provided on the inner walls on both sides of the rectangular groove, and the movable grooves are connected to the two welding wires inside the welding gun head.

[0015] According to an advantageous embodiment, the wire feeding assembly includes a pressing member symmetrically arranged inside the welding torch head. The pressing member has a semi-circular arc structure, and a rubber pad with strip-shaped holes opened on the outer wall is arranged on the inner wall of the pressing member facing the welding wire. Guide posts are arranged at one end of the two pressing members inside the same welding torch head that are close to each other. A triangular inclined plane pushing block that moves up and down is arranged inside the rectangular groove through a spring. A guide groove is arranged on the side wall of the triangular inclined plane pushing block, and the guide post is located inside the guide groove. The inclined plane side of the triangular inclined plane pushing block is matched with the hemispherical front end of the pushing round rod.

[0016] According to an advantageous embodiment, the welding frame has a U-shaped structure, and the U-shaped opening faces the front side. Reinforcing rib plates are arranged on the left and right side walls of the welding frame.

[0017] According to an advantageous embodiment, a ball that is matched with the welding wire channel inside the welding torch head is arranged on the side of the pressing member facing the welding wire.

[0018] According to an advantageous embodiment, a chip supporting seat that moves up and down is arranged at the rear side of the wire harness supporting table through an electric slider. The chip supporting seat is used to support the chip connected to the end of the wire harness.

[0019] Compared with the prior art, an automatic welding machine for tinning the riveting points of detonators provided by the embodiment of the present invention has the following beneficial effects:

[0020] 1. The present invention simultaneously performs tin soldering on the riveting point positions of multiple wire harnesses to improve the welding efficiency. Before welding, the wires are pressed and positioned to prevent the wires from bending and warping, resulting in poor soldering and poor contact at the welding points. During welding, the two welding points on the same chip are isolated by a partition plate, which can effectively prevent the welding points from sticking together and further improve the welding effect.

[0021] 2. During the welding process of the present invention, the pushing round rod moves horizontally at a fixed distance and is matched with the inclined plane of the triangular inclined plane pushing block. The triangular inclined plane pushing block has a horizontally forward moving force, so that after the rubber pad fits tightly against the outer wall of the welding wire, the triangular inclined plane pushing block moves downward and drives the welding wire to move downward and feed quantitatively along the welding wire channel at the same time, ensuring that the length of the welding wire protruding from the welding torch head is certain, so as to ensure that the volume size of the melted welding wire is certain, further keeping the solder joints uniform, and avoiding the solder joints being uneven, resulting in unstable welding points, or causing the welding points to melt excessively and penetrate at the solder joint positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structure diagram of the present invention.

[0023] Figure 2 It is a cross-sectional view of the side position of the present invention.

[0024] Figure 3 is Figure 2 Partial enlarged view at position A in the middle.

[0025] Figure 4 Cross-sectional view of the top-down position of the welding torch head of the present invention at the rectangular groove.

[0026] Figure 5 Cross-sectional view of the front view position of the lower end of the welding torch head of the present invention.

[0027] Figure 6 Cross-sectional view of the left side position of the lower end of the welding torch head of the present invention.

[0028] Reference numerals in the figure: 1, moving track; 2, wire harness support table; 3, wire harness; 4, welding frame; 41, reinforcing rib plate; 5, fixing plate; 51, pushing assembly; 511, pushing cylinder; 512, transverse plate; 513, pushing round rod; 52, feeding assembly; 521, inverted L-shaped bracket; 522, feeding cylinder; 523, pushing plate; 53, welding torch head; 531, welding wire channel; 532, rectangular groove; 533, moving groove; 54, welding wire; 55, wire feeding assembly; 551, pushing member; 552, rubber pad; 553, guiding column; 554, triangular inclined surface pushing block; 555, guiding groove; 56, auxiliary assembly; 561, auxiliary channel; 562, guiding rod; 563, pressing column; 564, arc-shaped pressing groove; 565, inclined moving column; 566, partition board. Detailed implementation manners

[0029] The following is a further detailed description of the present application in conjunction with the attached Figure 1-6 drawings.

[0030] Please refer to Figure 1 , a detonator riveting point solder wire automatic welding machine, including a moving track 1 and a wire harness support table 2 slidably arranged on the moving track 1. Multiple sets of bundled wire harnesses 3 are placed on the wire harness support table 2; and the wire harness support table 2 can drive the wire harness 3 placed on the upper end to move left and right and back and forth along the moving track 1; a welding frame 4 is fixedly arranged at the rear side of the moving track 1. The welding frame 4 has a C-shaped structure, and the C-shaped opening faces forward. Reinforcing rib plates 41 are arranged on both the left and right side walls of the welding frame 4; the arrangement of the reinforcing rib plates 41 improves the overall structural strength of the welding frame 4.

[0031] During welding, the wire harness support table 2 moves along the moving track 1 until it moves to a position directly opposite to the welding frame 4. At this time, the wire harness support table 2 moves backward to send the welding point to a specified position for solder treatment.

[0032] Please refer to Figure 2 , a chip support seat that moves up and down is arranged at the rear side of the wire harness support table 2 through an electric slider. The chip support seat is used to support the chip connected to the end of the wire harness 3, facilitating its solder treatment.

[0033] Please refer to Figure 2 , Figure 3 and Figure 4 A fixing plate 5 is provided on the inner wall of the middle part of the welding frame 4, and a mounting groove penetrating the front side wall is provided in the middle part of the fixing plate 5; a pushing assembly 51 is provided in the mounting groove; a feeding assembly 52 is provided at the upper end of the fixing plate 5; a plurality of circular through holes are evenly provided on the transverse section at the upper end of the welding frame 4 and the fixing plate 5, and the circular through holes on the transverse section of the welding frame 4 correspond to the circular through holes on the fixing plate 5 one by one; welding gun heads 53 are slidably provided in the corresponding circular through holes; the welding gun heads 53 are the prior art The welding gun head 53 has a heating and melting function. Two welding wire channels 531 are arranged on the left and right sides of each welding gun head 53, and welding wire 54 is arranged inside the welding wire channel 531. A rectangular groove 532 that passes through the front and back is opened at the lower end of the welding gun head 53. A wire feeding assembly 55 for pushing the welding wire 54 is arranged inside the lower end of the welding gun head 53. The wire feeding assembly 55 cooperates with the pushing assembly 51, and auxiliary components 56 for assisting in pressing the wire harness 3 are also arranged on the front and rear sides of the welding wire 54.

[0034] During specific welding, the chip support seat is first lifted to a position that fully supports the chip through the electric slider, and then the wire feeding assembly 55 is pushed by the pushing assembly 51 to feed the wire at a fixed length. After completion, the welding gun head 53 is driven downward by the feeding assembly 52. ​​During the downward feeding of the welding gun head 53, the wire at the welding position of the wiring harness 3 is first limited by the auxiliary assembly 56. As the downward pressure continues, the welding points on both sides will be isolated until the welding wire 54 reaches the welding point position, and the welding gun head 53 melts the welding wire 54 to complete the soldering work.

[0035] Please refer to Figure 3 and Figure 4 The inner walls on both sides of the rectangular groove 532 are provided with vertical downward moving grooves 533, and the moving grooves 533 are connected to the two welding wires 54 inside the welding gun head 53.

[0036] Please refer to Figure 2 The pushing assembly 51 includes two pushing cylinders 511 respectively fixed on the side walls of the mounting groove, and a transverse plate 512 is fixedly provided at the telescopic ends of the two pushing cylinders 511. Pushing round rods 513 are evenly provided on the front side walls of the transverse plate 512, and the front ends of the pushing round rods 513 are hemispherical structures. Several of the pushing round rods 513 correspond one to one with the welding gun heads 53.

[0037] Please refer to Figure 4The wire feeding assembly 55 includes a push piece 551 symmetrically arranged inside the welding gun head 53. The push piece 551 is a semi-arc structure, and the inner wall of the push piece 551 facing the welding wire 54 is provided with a rubber pad 552 with a strip hole on the outer wall; the purpose is to increase the friction resistance between the rubber pad 552 and the welding wire 54, so that the welding wire 54 can be driven to feed downward when the push piece 551 moves downward; the push piece 551 is also provided with a side facing the welding wire 54 to contact with the welding gun head 5 3. The inner wire channel 531 of the same welding gun head 53 has a ball bearing matched with the inner wire channel 531; the two pushing pieces 551 in the same welding gun head 53 are both provided with a guide column 553 at one end close to each other; the inner part of the rectangular groove 532 is provided with a triangular inclined surface push block 554 which moves up and down through a spring; the side wall of the triangular inclined surface push block 554 is provided with a guide groove 555, and the guide column 553 is located in the guide groove 555; the inclined side of the triangular inclined surface push block 554 is matched with the hemispherical front end of the pushing round rod 513.

[0038] When the pushing assembly 51 is working, the pushing cylinder 511 pushes the transverse plate 512 to move. During the movement of the transverse plate 512, the pushing rod 513 is driven to move and cooperate with the inclined surface of the triangular inclined surface push block 554. The triangular inclined surface push block 554 has a lateral movement trend, which will drive the guide column 553 to push forward, thereby driving the pushing piece 551 to press the welding wire 54 tightly through the action of the guide column 553. As the pushing rod 513 continues to move, the triangular inclined surface push block 554 will move downward along the rectangular groove 532, thereby driving the welding wire 54 to be fed downward by a specified length through the action of the pushing piece 551; during the downward movement of the pushing piece 551, the ball arranged on its outer side effectively improves the smoothness of its movement.

[0039] Please refer to Figure 2 The feed assembly 52 includes an inverted L-shaped bracket 521 installed on the upper end of the fixed plate 5; two feed cylinders 522 are fixedly provided on the lower end surface of the transverse section of the inverted L-shaped bracket 521, and a push plate 523 is fixedly provided at the lower ends of the two feed cylinders 522, and the push plate 523 is connected to the outer walls of all welding gun heads 53.

[0040] When the welding wire 54 moves a specified length, the feed cylinder 522 drives the push plate 523 to move downward, so that all welding gun heads 53 are pushed downward by the push plate 523, so that the welding wire 54 contacts the welding point position to complete the soldering work.

[0041] Please refer to Figure 5 and Figure 6The auxiliary component 56 includes an auxiliary channel 561 opened on the lower end surface of the welding gun head 53 and located on both sides of the front and rear of the welding wire channel 531; the auxiliary channel 561 is internally threadedly connected with a guide rod 562, and a pressure column 563 for pressing down and positioning the metal end of the wire harness 3 is slidably arranged on the guide rod 562, and the outer wall of the guide rod 562 is sleeved with a spring, the upper end of the spring is connected to the inner wall of the top end of the auxiliary channel 561, and the lower end of the spring is connected to the outer wall of the pressure column 563; the lower end of the pressure column 563 is provided with an arc-shaped pressure groove 564 that matches the outer wall of the wire harness 3; the side walls of the two adjacent pressure columns 563 on the same welding gun head 53 are both provided with oblique moving columns 565 that slide obliquely, and the lower ends of the two adjacent oblique moving columns 565 on the front and rear of the welding wire channel 531 are jointly provided with a baffle plate 566; the oblique moving column 565 is slidably arranged inside the pressure column 563 through the spring, and the oblique moving column 565 matches the end of the guide rod 562.

[0042] When the welding gun head 53 moves downward, the pressure column 563 will first fit with the wire near the welding point of the wiring harness 3, and the pressure column 563 will press and limit the wire. As the welding gun head 53 continues to move downward, the pressure column 563 moves upward relative to the guide rod 562. When the guide rod 562 fits with the top of the oblique movement column 565, as the welding gun head 53 continues to move downward, the oblique movement column 565 will be pushed out until the baffle plates 566 on both sides fit together. At this time, the baffle plates 566 will isolate the welding points on both sides, thereby ensuring that the welding points on both sides will not stick together when soldering.

[0043] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A detonator riveting point tin wire automatic welding machine, comprising a movable track (1) and a wire harness support platform (2) slidably arranged on the movable track (1), characterized in that: A plurality of bundles of wire harnesses (3) are placed on the wire harness support platform (2); and the wire harness support platform (2) can drive the wire harnesses (3) placed on the upper end to move left and right and forward and backward along the movable track (1); a welding frame (4) is fixedly provided on the rear side of the movable track (1). A fixing plate (5) is arranged on the inner wall of the middle part of the welding frame (4), and a mounting groove penetrating the front side wall is arranged in the middle part of the fixing plate (5); a pushing assembly (51) is arranged in the mounting groove; a feeding assembly (52) is arranged at the upper end of the fixing plate (5); a plurality of circular through holes are evenly arranged on the transverse section of the upper end of the welding frame (4) and the fixing plate (5), and the circular through holes on the transverse section of the welding frame (4) correspond to the circular through holes on the fixing plate (5); the corresponding circular through holes slide together in the fixing plate (5); A welding gun head (53) is provided; each welding gun head (53) is provided with two welding wire channels (531) distributed on the left and right, and welding wire (54) is provided inside the welding wire channels (531); a wire feeding assembly (55) for quantitatively feeding the welding wire (54) is provided inside the lower end of the welding gun head (53), the wire feeding assembly (55) cooperates with the pushing assembly (51), and auxiliary assemblies (56) for assisting in pressing the wire harness (3) are also provided on the front and rear sides of the welding wire (54); The auxiliary components (56) adjacent to each other on the same welding gun head (53) cooperate with each other to isolate the welding point position and prevent adhesion.

2. The automatic tin wire welding machine for riveting points of detonators according to claim 1 is characterized in that: The auxiliary component (56) includes an auxiliary channel (561) opened on the lower end surface of the welding gun head (53) and located on the front and rear sides of the welding wire channel (531); the auxiliary channel (561) is internally threadedly connected with a guide rod (562), and a pressure column (563) is slidably arranged on the guide rod (562) for pressing down and positioning the metal end of the wire harness (3), and the outer wall of the guide rod (562) is sleeved with a spring, the upper end of the spring is connected to the top inner wall of the auxiliary channel (561), and the lower end of the spring is connected to the outer wall of the pressure column (563); the lower end of the pressure column (563) is provided with an arc-shaped pressure groove (564) that matches the outer wall of the wire harness (3).

3. The automatic tin wire welding machine for riveting points of detonators according to claim 2 is characterized in that: The side walls of two adjacent pressure columns (563) on the same welding gun head (53) are both provided with oblique moving columns (565) that slide obliquely, and the lower ends of the two adjacent oblique moving columns (565) in front and behind the welding wire channel (531) are jointly provided with a baffle plate (566); the oblique moving column (565) is slidably arranged inside the pressure column (563) through a spring, and the oblique moving column (565) is matched with the end of the guide rod (562).

4. The automatic tin wire welding machine for riveting points of detonators according to claim 1 is characterized in that: The pushing assembly (51) comprises two pushing cylinders (511) respectively fixed on the side walls of the mounting groove, the telescopic ends of the two pushing cylinders (511) are commonly fixedly provided with a transverse plate (512), the front side walls of the transverse plate (512) are evenly provided with pushing round rods (513), and the front ends of the pushing round rods (513) are hemispherical structures, and a plurality of the pushing round rods (513) correspond one to one with the welding gun heads (53).

5. The automatic tin wire welding machine for riveted points of detonators according to claim 1 is characterized in that: The described feeding assembly (52) includes an inverted L-shaped bracket (521) installed at the upper end of the fixed plate (5); two feeding cylinders (522) are fixedly arranged on the lower end surface of the horizontal section of the inverted L-shaped bracket (521), and a pushing plate (523) is fixedly arranged at the lower ends of the two feeding cylinders (522). The pushing plate (523) is connected to the outer walls of all the welding torch heads (53).

6. The automatic tin wire welding machine for riveting points of detonators according to claim 1, characterized in that: A rectangular groove (532) penetrating through the front and back is opened at the lower end of the welding torch head (53). Vertical downward moving grooves (533) are arranged on the inner walls on the left and right sides of the rectangular groove (532), and the moving grooves (533) communicate with two welding wires (54) inside the welding torch head (53).

7. The automatic tin wire welding machine for riveted points of detonators according to claim 6, characterized in that: The described wire feeding assembly (55) includes pressing members (551) symmetrically arranged inside the welding torch head (53). The pressing members (551) are of semi-circular arc structure. A rubber pad (552) with a strip-shaped hole opened on its outer wall is arranged on the inner wall of the pressing member (551) facing the welding wire (54); guide columns (553) are arranged at the mutually approaching ends of the two pressing members (551) inside the same welding torch head (53). A triangular inclined plane push block (554) moving up and down through a spring is arranged inside the rectangular groove (532). A guide groove (555) is arranged on the side wall of the triangular inclined plane push block (554). The guide column (553) is located inside the guide groove (555); the inclined plane side of the triangular inclined plane push block (554) is matched with the hemispherical front end of the pushing round rod (513).

8. The automatic tin wire welding machine for riveted points of detonators according to claim 1, characterized in that: The described welding frame (4) is of a U-shaped structure with the U-shaped opening facing forward, and reinforcing rib plates (41) are arranged on the left and right side walls of the welding frame (4).

9. The automatic tin wire welding machine for riveting points of detonators according to claim 7, characterized in that: A ball is arranged on the side of the pressing member (551) facing the welding wire (54) and is matched with the welding wire channel (531) inside the welding torch head (53).

10. The automatic tin wire welding machine for riveted points of detonators according to claim 1, characterized in that: A chip support seat moving up and down is arranged at the rear side of the wire harness support table (2) through an electric slider. The chip support seat is used to support the chip connected to the end of the wire harness (3).

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