A wire welding device for speaker production

Abstract

This application relates to the technical field of speakers, and particularly relates to a wire welding device for speaker production, including a chassis, a placement tray, a motor I, a sliding frame, an electric push rod I, a fixed plate, etc.; a placement tray is rotatably connected to the chassis, a circular groove is opened in the placement tray, and the placement tray is inclined; a motor I is fixedly connected to the chassis; the output shaft of the motor I is fixedly connected to the placement tray; a sliding frame is slidably connected in the chassis; an electric push rod I is fixedly connected to the chassis; the telescopic end of the electric push rod I is fixedly connected to the sliding frame; a fixed plate is fixedly connected to the middle of the sliding frame. The present invention detects the length of the wire harness wires through a camera to ensure that the length of the wire harness wires for welding is qualified and ensure the welding quality; during welding, the wire harness is automatically pushed, and there is no need for manual hands to firmly hold the speaker and the wire harness at the same time, making the operation more convenient and safe.

Description

Technical Field

[0001] This application relates to the technical field of loudspeakers, and particularly relates to a wire welding device for loudspeaker production. Background Art

[0002] Currently, when producing loudspeakers, it is necessary to weld the wire harness to the loudspeaker. Usually, a worker holds the loudspeaker with one hand and pinches the wire harness with the other hand, then passes the wire of the wire harness through the welding positioning hole of the loudspeaker, and then uses a spot welder to weld the wire harness to the loudspeaker. However, during the operation, it is necessary for the worker to firmly hold the loudspeaker and the wire harness with both hands at the same time, which requires a lot of experience. Moreover, the worker's both hands are too close to the spot welder, and if the operation is slightly improper, there is a risk of being injured by the spot welder. In addition, the current welding equipment cannot detect the length of the wire exposed from the wire harness. During the wire stripping process, if the operation is improper, such as improper use of the wire stripping tool or unskilled wire stripping technique, the exposed wire will be too short. When the wire harness with too short wire is welded, a stable welded connection cannot be formed, thus affecting the mechanical strength and electrical performance of the welding point and the product quality. Summary of the Invention

[0003] In order to overcome the shortcomings that the current welding equipment requires a worker to firmly hold the loudspeaker and the wire harness with both hands at the same time, which requires a lot of experience, and the worker's both hands are too close to the spot welder, and if the operation is slightly improper, there is a risk of being injured by the spot welder, the present invention provides a wire welding device for loudspeaker production.

[0004] The technical implementation solution of the present invention is: A wire welding device for loudspeaker production, including a chassis; further including a placement tray, a motor I, a sliding frame, an electric push rod I, a welding plate, a clamping plate, an automatic laser spot welder, a camera, a receiving plate, a motor II, and a pressing plate; the placement tray is rotatably connected to the chassis, a circular groove is opened in the placement tray, and the placement tray is inclined; the motor I is fixedly connected to the chassis; the output shaft of the motor I is fixedly connected to the placement tray; the sliding frame is slidably connected inside the chassis; the electric push rod I is fixedly connected to the chassis; the telescopic end of the electric push rod I is fixedly connected to the sliding frame; the welding plate is fixedly connected to the middle of the sliding frame; the clamping plate is fixedly connected to the right part of the welding plate, and a semi-circular arc groove is opened in the clamping plate; the automatic laser spot welder and the camera are arranged above the chassis, the automatic laser spot welder is used to fixedly connect the wire harness at the positioning hole of the loudspeaker, and the camera is located directly above the welding plate; the receiving plate is fixedly connected to the right part of the sliding frame; the motor II is fixedly connected to the rear part of the receiving plate; the output shaft of the motor II is fixedly connected to the pressing plate; arc grooves are opened in the middle of the receiving plate and the pressing plate.

[0005] Furthermore, a protrusion is arranged on the left part of the chassis.

[0006] Furthermore, an oblique angle is opened in the upper part of the circular groove of the placement tray.

[0007] Furthermore, an arc-shaped rubber sleeve is fixedly connected inside the arc-shaped grooves in the middle of the receiving plate and the pressing plate.

[0008] Furthermore, the surface of the arc-shaped rubber sleeve is rough.

[0009] Furthermore, it also includes an elastic strip; an elastic strip is fixedly connected to the lower right part of the placement tray, and the elastic strip faces the welding plate in the left-right direction.

[0010] Furthermore, it also includes an electric wire stripper, a mounting bracket, and an electric push rod II; an electric push rod II is fixedly connected to the bottom frame; the telescopic end of the electric push rod II is fixedly connected to the mounting bracket; two electric wire strippers are fixedly connected to the upper part of the mounting bracket; the two electric wire strippers are symmetrically arranged front and back, and the right side of the clamping plate is located exactly in the middle of the two electric wire strippers.

[0011] Furthermore, it also includes a limiting plate; two limiting plates are connected to the clamping plate through a torsion spring rotating shaft; the two limiting plates are symmetrically arranged front and back; the lower sides of the two limiting plates and the semi-circular arc-shaped groove of the clamping plate together form a circular hole.

[0012] Furthermore, a bevel is formed on the right edge of the circular hole formed by the clamping plate and the limiting plate.

[0013] Furthermore, it also includes an electric push rod III and a pressing rod; an electric push rod III is fixedly connected to the bottom frame; the telescopic end of the electric push rod III is fixedly connected to the pressing rod; the front part of the pressing rod is located directly above the two limiting plates.

[0014] The present invention has the following advantages: 1. The present invention detects the length of the wire harness conductors through a camera to ensure that the length of the wire harness conductors for welding is qualified and ensure the welding quality; during welding, the wire harness is automatically pushed, eliminating the need for manual hands to stably hold the speaker and the wire harness simultaneously, making the operation more convenient and safe.

[0015] 2. The present invention cuts or strips the unqualified wire harness conductors through the cooperation of the camera and the electric wire stripper, making the length of the wire harness conductors meet the requirements, thus eliminating the need to replace the unqualified wire harness conductors with a new wire harness, facilitating the continuous progress of welding, and eliminating the need to move the unqualified wire harness to the stripping station for stripping, improving the processing efficiency.

[0016] 3. The present invention moves the bent wire harness to the right. Through the circular hole formed by the lower sides of the two limiting plates and the semi-circular arc-shaped groove of the clamping plate, the wire harness conductors are straightened, and then the length of the wire harness conductors is detected to be qualified, avoiding misjudgment caused by the bending of the wire harness conductors. At the same time, the straightened wire harness can smoothly pass through the welding positioning holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of the wire welding device for speaker production according to the present invention;

[0018] Figure 2 Schematic diagram of the combined three-dimensional structure of the placement tray, the third electric push rod and the pressing rod of the wire welding equipment for loudspeaker production according to the present invention;

[0019] Figure 3 Schematic diagram of the combined three-dimensional structure of the chassis, the first electric push rod, the sliding frame, the welding plate, the clamping plate, the receiving plate and the arc-shaped rubber sleeve of the wire welding equipment for loudspeaker production according to the present invention;

[0020] Figure 4 Schematic diagram of the combined three-dimensional structure of the first electric push rod, the third electric push rod and the second electric push rod of the wire welding equipment for loudspeaker production according to the present invention;

[0021] Figure 5 Schematic diagram of the combined three-dimensional structure of the electric wire stripping knife and the mounting bracket of the wire welding equipment for loudspeaker production according to the present invention;

[0022] Figure 6 State diagram of the wire welding equipment for loudspeaker production according to the present invention.

[0023] Meanings of the reference numerals in the figure: 1 - chassis, 2 - placement tray, 3 - motor I, 4 - sliding frame, 5 - first electric push rod, 6 - welding plate, 7 - clamping plate, 12 - elastic strip, 13 - automatic laser spot welder, 14 - camera, 21 - receiving plate, 22 - arc-shaped rubber sleeve, 23 - motor II, 24 - pressing plate, 31 - third electric push rod, 32 - pressing rod, 33 - limiting plate, 42 - electric wire stripping knife, 43 - mounting bracket, 44 - second electric push rod. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment 1

[0025] A wire welding equipment for loudspeaker production, as Figures 1-6As shown in the figure, it includes a chassis 1; it also includes a placement tray 2, a motor I 3, a sliding frame 4, an electric push rod I 5, a welding plate 6, a clamping plate 7, an automatic laser spot welder 13, a camera 14, a receiving plate 21, a motor II 23, and a pressing plate 24; a placement tray 2 is rotatably connected to the chassis 1, a circular groove is formed in the placement tray 2, and the placement tray 2 is inclined; a motor I 3 is bolted to the chassis 1; the output shaft of the motor I 3 is fixedly connected to the placement tray 2; a sliding frame 4 is slidably connected to the right part of the chassis 1; an electric push rod I 5 is fixedly connected to the lower part of the chassis 1; the telescopic end of the electric push rod I 5 is fixedly connected to the sliding frame 4; a welding plate 6 is welded to the middle of the sliding frame 4; a clamping plate 7 is welded to the right part of the welding plate 6, and a semi-circular arc-shaped groove is formed in the clamping plate 7; an automatic laser spot welder 13 and a camera 14 are arranged above the chassis 1, and the camera 14 is located directly above the welding plate 6; a receiving plate 21 is welded to the right part of the sliding frame 4; a motor II 23 is bolted to the rear part of the receiving plate 21; the output shaft of the motor II 23 is fixedly connected to the pressing plate 24; arc-shaped grooves are formed in the middle of the receiving plate 21 and the pressing plate 24.

[0026] Furthermore, in order to support the placement tray 2, a protrusion is provided on the left part of the chassis 1.

[0027] Furthermore, in order to facilitate the placement of the speaker, an oblique angle is formed in the upper part of the circular groove of the placement tray 2.

[0028] Furthermore, in order to prevent the wire harness from being crushed, an arc-shaped rubber sleeve 22 is fixedly connected to the arc-shaped grooves in the middle of the receiving plate 21 and the pressing plate 24.

[0029] Furthermore, in order to increase the friction between the arc-shaped rubber sleeve 22 and the wire harness to clamp the wire harness and prevent the wire harness from sliding, the surface of the arc-shaped rubber sleeve 22 is rough.

[0030] Furthermore, it also includes an elastic strip 12; the elastic strip 12 is fixedly connected to the lower right part of the placement tray 2, and the elastic strip 12 is directly opposite to the welding plate 6 in the left-right direction.

[0031] Furthermore, it also includes an electric wire stripper 42, a mounting bracket 43, and an electric push rod II 44; the electric push rod II 44 is fixedly connected to the chassis 1; the telescopic end of the electric push rod II 44 is fixedly connected to the mounting bracket 43; two electric wire strippers 42 are fixedly connected to the upper part of the mounting bracket 43; the two electric wire strippers 42 are symmetrically arranged front and back, and the right side of the clamping plate 7 is located directly in the middle of the two electric wire strippers 42.

[0032] The first step: When in use, hold the bottom of the speaker with the left hand manually, and then place the speaker into the circular groove of the placement plate 2. Since the placement plate 2 is inclined, the welding positioning holes on the speaker are in an inclined state. Then rotate the speaker so that the elastic strip 12 is in the middle of the welding positioning holes, so that the welding positioning holes are facing the welding plate 6, facilitating the insertion of the wire harness lead wire part in the subsequent steps. Then, pinch the wire harness with the thumb and index finger of the right hand, place the right part of the exposed wire of the wire harness on the semi-circular groove of the clamping plate 7, that is, make the wire harness cortex abut against the right side of the clamping plate 7, and then place the wire harness cortex in the groove on the receiving plate 21. Then control the motor II 23 to drive the pressing plate 24 to rotate towards the receiving plate 21, so that the receiving plate 21 contacts the pressing plate 24, and the receiving plate 21 and the pressing plate 24 jointly clamp the wire harness. Then, observe whether the length of the exposed wire of the wire harness is qualified by the camera 14. If the wire of the wire harness is too short (when welding the wire harness to the speaker, if the wire of the wire harness is too short, a stable welding connection cannot be formed during welding, which will affect the mechanical strength and electrical performance of the welding point, and further affect the product quality), the wire harness needs to be replaced. After replacing the wire harness, repeat the above operations. In this way, the length of the wire harness lead wire is detected by the camera 14 to ensure that the length of the welded wire harness lead wire is qualified and the welding quality is ensured.

[0033] Here it should be noted that when placing the speaker into the circular groove of the placement plate 2, the speaker can be loaded by an external manipulator or other existing feeding equipment, so that manual feeding is not required, which is beneficial to reducing the manual work burden. At the same time, when placing the speaker into the circular groove of the placement plate 2, the placement plate 2 can be electrically set, so that the placement plate 2 actively drives the speaker to rotate, and cooperate with the camera 14 to observe the rotation of the speaker. That is, when the placement plate 2 actively drives the speaker to rotate and the elastic strip 12 is in the middle of the welding positioning holes of the speaker, the placement plate 2 stops driving the speaker to rotate. In this way, the manual work burden is further reduced, and only manual care is required on the side. Further, when placing the wire harness on the clamping plate 7 and the receiving plate 21, the speaker can also be loaded by an external manipulator or other existing feeding equipment, so as to realize a fully automated welding operation and improve the welding efficiency.

[0034] The second step: If the length of the wire harness lead wire is qualified, control the electric push rod I 5 to drive the sliding frame 4 to move leftward on the chassis 1. The sliding frame 4 drives the welding plate 6, the clamping plate 7, the receiving plate 21, the motor II 23 and the pressing plate 24 to move leftward, so that the wire harness moves leftward, so that the welding plate 6 contacts the chassis 1 and presses down the elastic strip 12, so that the elastic strip 12 is located below the cross plate of the welding plate 6 to avoid affecting the welding. During this process, there is a distance between the position of the wire harness placed on the upper part of the clamping plate 7 and the cross plate of the welding plate 6, so Figure 6As shown, the wire of the wire harness passes through the welding positioning hole of the speaker, and then the control motor I 3 drives the placement plate 2 to rotate downward, so that the lower side of the placement plate 2 contacts the chassis 1 and is in a horizontal state. After the speaker rotates, the lower side of the welding part of the speaker contacts the welding plate 6, and the front part of the wire of the wire harness is pressed on the welding plate 6 by the welding part of the speaker. Then, the control automatic laser spot welder 13 descends to weld the wire of the wire harness to the welding part of the speaker, thus completing the welding of one wire harness; in this way, during welding, there is no need for manual hands to stably hold the speaker and the wire harness at the same time, and the operation is more convenient and safe.

[0035] Step 3: After completing the welding of one wire harness, control the motor I 3 to drive the placement plate 2 to rotate upward to reset to the inclined state as Figure 2 shown, then control the motor II 23 to drive the pressing plate 24 away from the receiving plate 21, so that the receiving plate 21 is separated from the pressing plate 24. Then, manually rotate the speaker so that the other welding positioning hole of the speaker places the elastic strip 12 in the middle, and remove the welded wire harness from the clamping plate 7 and the receiving plate 21. Then, repeat the actions of the first step and the second step to weld another wire harness to the speaker as well, thus completing the welding of the wire harness; finally, remove the speaker from the placement plate 2.

[0036] In the first step: When the camera 14 observes that the exposed length of the wire harness wire is too short, control the electric push rod II 44 to drive the electric wire stripping knife 42 and the mounting bracket 43 to move to the right by a distance equal to the length lacking of the wire harness wire. Then control the two electric wire stripping knives 42 to work, so that the cutting knives of the two electric wire stripping knives 42 move towards each other to cut off a part of the wire harness cortex. The cut-off part of the wire harness cortex is the length lacking of the wire harness wire. Then control the electric push rod I 5 to drive the sliding bracket 4 to move to the right. The sliding bracket 4 drives the welding plate 6, the clamping plate 7, the receiving plate 21, the motor II 23 and the pressing plate 24 to move to the right, so that the wire harness moves to the right, and the wire harness passes through the cutting knives of the two electric wire stripping knives 42, thereby separating the wire harness wire from the cut-off wire harness cortex. In this way, the exposed length of the wire harness wire meets the requirements and can be welded. When the camera 14 observes that the exposed length of the wire harness wire is too long, control the electric push rod I 5 to drive the sliding bracket 4 to move to the right. The sliding bracket 4 drives the welding plate 6, the clamping plate 7, the receiving plate 21, the motor II 23 and the pressing plate 24 to move to the right, so that the wire harness moves to the right, and the extra part of the wire harness wire is located on the left side of the two electric wire stripping knives 42. Then control the two electric wire stripping knives 42 to work, so that the cutting knives of the two electric wire stripping knives 42 move towards each other to cut off the wire harness wire. The cut-off wire harness wire falls on the welding plate 6 or the clamping plate 7. The cut-off wire can be removed by setting an external blowing device or manually. In this way, the exposed length of the wire harness wire meets the requirements and can be welded, preventing the exposed wire from being too long after the wire harness is welded (the too long exposed wire increases the risk of electric shock. Especially in a humid or conductive environment, the exposed wire is more likely to cause a short circuit or an electric shock accident). In this way, through the cooperation of the camera 14 and the electric wire stripping knife 42, the unqualified wire harness wire is cut or stripped, so that the length of the wire harness wire meets the requirements, thus eliminating the need to replace the unqualified wire harness wire with a new wire harness, facilitating the continuous welding process, and eliminating the need to move the unqualified wire harness to the wire stripping station for wire stripping, improving the processing efficiency. Embodiment 2

[0037] On the basis of Embodiment 1, as Figures 2-4 shown, it further includes a limiting plate 33; two limiting plates 33 are connected to the clamping plate 7 through a torsion spring rotating shaft; the two limiting plates 33 are symmetrically arranged front and back; the lower sides of the two limiting plates 33 and the semi-circular arc groove of the clamping plate 7 together form a circular hole.

[0038] Furthermore, in order to facilitate the wire harness to be inserted into the circular hole formed by the lower sides of the two limiting plates 33 and the semi-circular arc groove of the clamping plate 7, a chamfer is provided at the right edge of the circular hole formed by the clamping plate 7 and the limiting plate 33.

[0039] Further, it also includes an electric push rod III 31 and a pressure rod 32; the rear part of the chassis 1 is fixedly connected with the electric push rod III 31; the telescopic end of the electric push rod III 31 is fixedly connected with the pressure rod 32; the front part of the pressure rod 32 is located directly above the two limit plates 33.

[0040] In the first step of Embodiment 1: Place the right part of the wire exposed from the wire harness on the semi-circular groove of the clamping plate 7, with the wire harness cortex against the right side of the clamping plate 7. Then, when placing the wire harness cortex in the groove on the receiving plate 21, there is no restriction above the part of the wire harness wire on the clamping plate 7. When inserting, the wire harness wire is prone to displacement, and manual adjustment is required again after displacement. Therefore, limit plates 33 are provided on the clamping plate 7. When placing the right part of the wire exposed from the wire harness on the semi-circular groove of the clamping plate 7, pass the right part of the wire exposed from the wire harness through the circular hole formed by the lower sides of the two limit plates 33 and the semi-circular groove of the clamping plate 7, so that the wire harness cortex abuts against the right sides of the two limit plates 33 and the clamping plate 7. Then, place the right part of the wire harness on the receiving plate 21, and the limit plates 33 restrict the upper part of the wire harness wire to prevent displacement. In the third step of Embodiment 1: Manually rotate the speaker so that the elastic strip 12 is placed in the middle by another welding positioning hole of the speaker. When removing the welded wire harness from the clamping plate 7 and the receiving plate 21, with a little force, the limit plates 33 can be rotated upward around the torsion spring rotating shaft connected to the clamping plate 7, so that the wire harness can be smoothly removed from the clamping plate 7. After removal, under the action of the torsion spring rotating shaft, the limit plates 33 rotate back to the reset position.

[0041] When the wire harness is stripped to expose the wire for welding the wire harness, when using inappropriate stripping tools (the stripping pliers or knives are worn), and when the force applied during stripping is uneven or the operation is rough, the wire in the wire harness will bend when the insulating layer is stripped. At this time, the length of the wire detected by the camera 14 is not the actual length, which will cause misjudgment. If the wire in the wire harness bends severely, it will also cause the end of the wire in the wire harness to be misaligned with the welding positioning hole of the speaker, and the wire in the wire harness cannot pass through the welding positioning hole smoothly. At this time, control the electric push rod III 31 to drive the pressure rod 32 to move downward, so that the pressure rod 32 moves downward and presses on the limit plates 33 to prevent the bent wire from forcing the limit plates 33 to rotate when moving, affecting the straightening effect. Then, control the electric push rod I 5 to drive the sliding frame 4 to move to the right, and the sliding frame 4 drives the welding plate 6, the clamping plate 7, the receiving plate 21, the motor II 23 and the pressing plate 24 to move to the right, so that the wire harness moves to the right, and the wire in the wire harness passes through the circular hole formed by the lower sides of the two limit plates 33 and the semi-circular groove of the clamping plate 7, so that the wire in the wire harness is straightened. Then, detect whether the length of the wire in the wire harness is qualified to avoid misjudgment caused by the bending of the wire in the wire harness. At the same time, the straightened wire harness can pass through the welding positioning hole smoothly.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A wire welding device for speaker production, comprising a base frame (1); wherein: The invention also comprises a placement plate (2), a motor I (3), a sliding frame (4), an electric push rod I (5), a welding plate (6), a clamping plate (7), an automatic laser spot welding machine (13), a camera (14), a receiving plate (21), a motor II (23) and a pressing plate (24); the placement plate (2) is rotatably connected to the bottom frame (1), a circular groove is formed in the placement plate (2), and the placement plate (2) is arranged in an inclined manner; the motor I (3) is fixedly connected to the bottom frame (1); the output shaft of the motor I (3) is fixedly connected to the placement plate (2); the sliding frame (4) is slidably connected to the bottom frame (1); the electric push rod I (5) is fixedly connected to the bottom frame (1); the telescopic end of the electric push rod I (5) is connected to the sliding frame The movable frame (4) is fixedly connected; a welding plate (6) is fixedly connected to the middle of the sliding frame (4); a clamping plate (7) is fixedly connected to the right of the welding plate (6), and a semicircular arc groove is formed on the clamping plate (7); an automatic laser spot welding machine (13) and a camera (14) are arranged above the bottom frame (1), and the automatic laser spot welding machine (13) is used to fix the wiring harness to the speaker positioning hole, and the camera (14) is located directly above the welding plate (6); a receiving plate (21) is fixedly connected to the right of the sliding frame (4); a motor II (23) is fixedly connected to the rear of the receiving plate (21); a pressing plate (24) is fixedly connected to the output shaft of the motor II (23); and arc grooves are formed in the middle of the receiving plate (21) and the pressing plate (24); It also includes a limit plate (33); two limit plates (33) are connected to the clamping plate (7) via a torsion spring shaft; the two limit plates (33) are symmetrically arranged front to back; the lower sides of the two limit plates (33) and the semicircular arc groove of the clamping plate (7) together form a circular hole.

2. A wire welding device for speaker production according to claim 1, characterized in that: A protrusion is provided on the left portion of the bottom frame (1).

3. A wire welding device for speaker production according to claim 1, characterized in that: The upper part of the circular groove of the placing plate (2) is provided with an oblique angle.

4. A wire welding device for speaker production according to claim 1, characterized in that: An arc-shaped rubber sleeve (22) is fixedly connected in the arc-shaped groove in the middle of the receiving plate (21) and the pressing plate (24).

5. A wire welding device for speaker production according to claim 4, characterized in that: The surface of the arc-shaped rubber sleeve (22) is rough.

6. A wire welding device for speaker production according to claim 1, characterized in that: It also includes an elastic strip (12); the elastic strip (12) is fixedly connected to the lower right part of the placement plate (2), and the elastic strip (12) is directly opposite to the welding plate (6) in the left-right direction.

7. A wire welding device for speaker production according to claim 6, characterized in that: It also includes an electric wire stripping knife (42), a mounting frame (43) and an electric push rod II (44); the electric push rod II (44) is fixedly connected to the base frame (1); the telescopic end of the electric push rod II (44) is fixedly connected to the mounting frame (43); two electric wire stripping knives (42) are fixedly connected to the upper part of the mounting frame (43); the two electric wire stripping knives (42) are symmetrically arranged front and back, and the right side of the clamping plate (7) is located in the middle of the two electric wire stripping knives (42).

8. A wire welding device for speaker production according to claim 1, characterized in that: The right edge of the circular hole formed by the clamping plate (7) and the limiting plate (33) is beveled.

9. A wire welding device for speaker production according to claim 8, characterized in that: It also includes an electric push rod III (31) and a pressure rod (32); the electric push rod III (31) is fixedly connected to the base frame (1); the pressure rod (32) is fixedly connected to the telescopic end of the electric push rod III (31); the front part of the pressure rod (32) is located directly above the two limit plates (33).

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