Full-automatic spot welding machine for magnetic head production

Abstract

The application relates to the field of welding equipment, in particular to a full-automatic spot welding machine for magnetic head production. The full-automatic spot welding machine comprises a conveying frame, a fixing frame and a first electric push rod, etc.; the fixing frame is fixedly connected to the conveying frame; and the first electric push rod is fixedly connected to the fixing frame. The application realizes that the sliding plate is driven by the second electric push rod to move to the side close to the welding head, the vertical part is in contact with the magnetic head, the conductive block is in contact with the welding head, the electrode plate is in contact with the magnetic head, after the external power supply is started, the current is not only transmitted to the upper surface of the magnetic head through the welding head, but also transmitted to the electrode plate through the conductive block, and then transmitted to the left side surface and the right side surface of the magnetic head, so that the current is transmitted through multiple current paths, the current transmission is more stable, the problem that the welding head only forms a single contact surface with the upper surface of the magnetic head, the effective current actually acting on the welding surface is reduced, the current density of the local area of the welding surface is insufficient, and the risks of false welding and cold welding are increased is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of welding equipment, in particular to a full-automatic spot welding machine for magnetic head production. BACKGROUND

[0002] In the production process of magnetic heads, the welding process is a key link for realizing the electrical connection and structural fixation of the magnetic heads and connecting members (such as lead wires, metal supports, etc.), and the welding quality directly affects the electrical performance and service life of the magnetic heads.

[0003] However, the contact mode of the welding head and the magnetic head of the existing spot welding machine has limitations, the welding head only forms a single contact surface with the upper surface of the magnetic head, and the welding current needs to pass through the welding head, the magnetic head from top to bottom in sequence, and finally be transmitted to the contact surface of the magnetic head and the connecting member. In this process, the current needs to penetrate the magnetic head body, and current loss inevitably occurs due to the material resistance of the magnetic head, the contact resistance, etc., which reduces the effective current actually acting on the welding surface (the contact surface of the magnetic head and the connecting member), and the current density in the local area of the welding surface is insufficient, increasing the risk of false welding and cold welding. SUMMARY

[0004] In order to overcome the limitations of the contact mode of the welding head and the magnetic head of the existing spot welding machine, the actual welding surface, the insufficient current density in the local area of the welding surface, and the risk of false welding and cold welding, the present application provides a full-automatic spot welding machine for magnetic head production.

[0005] The technical implementation scheme of the present application is as follows: a full-automatic spot welding machine for magnetic head production, comprising a conveying frame, a fixing frame, a first electric push rod, a welding head and a negative electrode mounted on the first electric push rod; the fixing frame is fixedly connected to the conveying frame; the first electric push rod is fixedly connected to the fixing frame; two front and rear symmetrical negative electrodes are connected to the lower side of the first electric push rod; further comprising a fixed block fixedly connected to the first electric push rod; the welding head and the negative electrode are both mounted on the lower side of the fixed block; the left and right sides of the fixed block are both slidingly connected with sliding plates; two second electric push rods which are left and right symmetrical and are fixedly connected with the output ends of the corresponding sliding plates are fixedly connected to the fixed block; each sliding plate is composed of a Z-shaped structure formed by a pressure receiving part, a horizontal part and a vertical part; the upper surface of the horizontal part is flush with the lower surface of the welding head; the pressure receiving part is fixedly connected with the corresponding second electric push rod; each vertical part is fixedly connected with an electrode plate on the side facing the welding head; each conductive block is connected with the corresponding electrode plate.

[0006] More preferably, the sliding plate is an epoxy glass cloth plate.

[0007] More preferably, the conductive block is composed of a plurality of rectangular array distributed contact points.

[0008] More preferably, the full-automatic spot welding machine for magnetic head production further comprises a protective shell fixedly connected to the welding head.

[0009] More preferably, the protective shell is made of insulating material.

[0010] More preferably, the device further comprises fins and cooling plates fixed to the sliding plates; each cooling plate is connected with an inlet pipe and an outlet pipe; and each cooling plate is fixed with fins between the corresponding electrode plate.

[0011] More preferably, the device further comprises a slag scraping block fixed to the vertical part.

[0012] More preferably, the conductive block and the electrode plate are made of copper.

[0013] More preferably, the device further comprises a first visual sensor fixed to the fixed block.

[0014] More preferably, the device further comprises a second visual sensor fixed to the conveying frame.

[0015] Compared with the prior art, the device has the following advantages: the device realizes that the sliding plate is driven by the second electric push rod to move towards the side close to the welding head, the vertical part contacts the magnetic head, and then the conductive block contacts the welding head, and the electrode plate contacts the magnetic head; after the external power supply is started, the current is not only transmitted to the upper surface of the magnetic head through the welding head, but also transmitted to the electrode plate through the conductive block, and then transmitted to the left and right side surfaces of the magnetic head, thereby transmitting the current through multiple current paths, making the current transmission more stable, solving the problem that the welding head only forms a single contact surface with the upper surface of the magnetic head, resulting in a decrease in the effective current actually acting on the welding surface, and increasing the risk of virtual welding and cold welding.

[0016] The vertical part contacts the magnetic head to clamp and fix the magnetic head, preventing the welding head from continuously generating downward pressure on the magnetic head, causing the magnetic head to deviate and affecting the welding precision.

[0017] The inlet pipe delivers cooling liquid to the cooling plate, and the outlet pipe discharges the cooling liquid after heat exchange in the cooling plate, so that the cooling plate continuously generates cold air, which is then transmitted to the electrode plate through the fins, and then transmitted to the magnetic head and the welding surface through the electrode plate, thereby realizing rapid cooling after welding, shortening the production cycle of single process, and improving the production efficiency.

[0018] The slag scraping block scrapes off impurities on the contact surface of the welding head and the magnetic head, which is prone to adhere to the contact surface of the welding head and the magnetic head, affecting the conductivity of the contact surface of the magnetic head and the welding head, and affecting the conductivity of the contact surface of the conductive block and the welding head.

[0019] The second electric push rod on the left side drives the sliding plate on the left side to continuously move towards the side close to the magnetic head, so that the vertical part extrudes the magnetic head, and the first visual sensor detects in real time, thereby directly detecting the welding quality of the magnetic head through this method, reducing equipment investment and labor cost. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the fully automatic spot welding machine for magnetic head production according to the present invention;

[0021] Figure 2 This is a three-dimensional structural diagram of the combination of the fixing frame, the first electric push rod, and the fixing block of the present invention;

[0022] Figure 3 This is a cross-sectional view of the combination of the fixing block and the protective shell of the present invention;

[0023] Figure 4 This is a cross-sectional view of the sliding plate of the present invention;

[0024] Figure 5 This is a schematic diagram of the three-dimensional structure of the fixed block, protective shell and first vision sensor combination of the present invention.

[0025] The above-mentioned figures include the following reference numerals: 1-conveying frame, 2-fixed frame, 3-first electric push rod, 4-welding head, 5-magnetic head, 6-connector, 7-negative electrode, 101-fixed block, 102-protective shell, 103-sliding plate, 10301-lateral part, 10302-pressure-bearing part, 10303-vertical part, 104-second electric push rod, 105-conductive block, 106-electrode plate, 107-slag scraper block, 108-fin, 109-cooling plate, 10901-water inlet pipe, 10902-water outlet pipe, 201-first vision sensor, 202-second vision sensor. Detailed Implementation

[0026] First, it should be noted that in different described embodiments, the same components are given the same reference numerals or the same component names. The disclosure contained throughout this specification can be applied semantically to the same components having the same reference numerals or the same component names. The location descriptions selected in the specification, such as upper, lower, lateral, etc., also refer to the directly described and illustrated figures and are semantically applied to the new location when the location changes.

[0027] Example 1: A fully automatic spot welding machine for magnetic head production, such as Figures 1-5 As shown, it includes a conveyor frame 1, a fixed frame 2, a first electric push rod 3, a welding head 4, and a negative electrode 7; the fixed frame 2 is fixedly connected to the conveyor frame 1; the first electric push rod 3 is fixedly connected to the fixed frame 2; the welding head 4 is connected to the lower side of the first electric push rod 3, and a positive electrode is provided inside the welding head 4; two negative electrodes 7 are connected to the lower side of the first electric push rod 3 in a symmetrical manner.

[0028] The fixed block 101, the sliding plate 103, the second electric push rod 104, the conductive block 105 and the electrode plate 106 are further included; the fixed block 101 is fixedly connected to the first electric push rod 3; the welding head 4 and the negative electrode 7 are both mounted on the lower side of the fixed block 101, and the welding head 4 is larger; the sliding plate 103 is slidably connected to the left and right sides of the fixed block 101; the fixed block 101 is fixedly connected with two left and right symmetrical second electric push rods 104; the output end of each second electric push rod 104 is fixedly connected with the corresponding sliding plate 103; each sliding plate 103 is in Z shape composed of a pressure receiving part 10302, a transverse part 10301 and a vertical part 10303; the upper surface of the transverse part 10301 is flush with the lower surface of the welding head 4; the pressure receiving part 10302 is fixedly connected with the corresponding second electric push rod 104; the vertical part 10303 is fixedly connected with the electrode plate 106 on the side facing the welding head 4; and each conductive block 105 is connected with the corresponding electrode plate 106.

[0029] In the embodiment, before the welding operation is performed, the water inlet pipe 10901 is connected with the external cooling liquid conveying device, the water outlet pipe 10902 is connected with the external cooling liquid recovery device, and the welding head 4 is connected with the external power supply to complete the preparation work; then the connecting piece 6 provided with the magnetic head 5 is placed on the conveying frame 1 through the external feeding device; and then the connecting piece 6 and the magnetic head 5 are conveyed to the position right below the welding head 4 through the conveying frame 1 to perform the welding operation.

[0030] When the connecting piece 6 and the magnetic head 5 are conveyed to the position right below the welding head 4, the fixed block 101 and the welding head 4 are first pushed downward by starting the first electric push rod 3; when the lower surface of the welding head 4 contacts the upper surface of the magnetic head 5, the negative electrode 7 contacts the upper surface of the connecting piece 6; at this time, the external power supply is started to guide the current into the welding head 4; then the current is transmitted to the magnetic head 5 through the positive electrode on the welding head 4, and then transmitted from the upper surface of the magnetic head 5 to the lower surface of the magnetic head 5, that is, the contact surface of the magnetic head 5 and the connecting piece 6 (it should be noted that in the prior art, a conductive pin is arranged on the outer side of the magnetic head 5 to transmit the current to the lower surface of the magnetic head 5 to avoid damaging the functional area in the magnetic head 5 when the current passes through the magnetic head 5); then the current is transmitted to the negative electrode 7 through the connecting piece 6 to be guided out, so that the temperature of the contact surface (i.e. the welding surface) of the magnetic head 5 and the connecting piece 6 rapidly rises to the melting point; at the same time of heating, the first electric push rod 3 is controlled to continue moving downward, so that the welding head 4 applies a certain pressure to the magnetic head 5 and the connecting piece 6, so that the molten metal forms a nugget; then the external power supply is turned off; after the welding head 4 is powered off, the pressure is maintained for a period of time, and the nugget is cooled and solidified under the action of the pressure to form a firm welding point, thereby completing the welding operation of the magnetic head 5 and the connecting piece 6; however, considering that the welding head 4 only forms a single contact surface with the upper surface of the magnetic head 5, the welding current needs to pass through the welding head 4, the magnetic head 5 and finally the contact surface of the magnetic head 5 and the connecting piece 6 from top to bottom;

[0031] Inevitably, current loss occurs due to the material resistance of the magnetic head 5, contact resistance, etc., which reduces the effective current actually acting on the welding surface, causes insufficient current density in the local area of the welding surface, and increases the risk of false welding and cold welding. Therefore, the welding head 4 is relatively large, and in the use process, the welding head 4 can be used for welding operations on magnetic heads 5 of different sizes without being replaced, has strong adaptability, does not need to be frequently replaced, improves production efficiency, and after the welding head 4 contacts the magnetic head 5, the second electric push rod 104 drives the sliding plate 103 to move to the side close to the welding head 4. When the vertical part 10303 contacts the magnetic head 5, the electrode plate 106 contacts the magnetic head 5, and the second electric push rod 104 stops extending. In this process, because the welding head 4 is larger than the magnetic head 5, when the sliding plate 103 moves to the edge of the welding head 4, the upper surface of the horizontal part 10301 contacts the surface of the welding head 4 as the sliding plate 103 continues to move, and then the conductive block 105 contacts the welding head 4. After the external power supply is started, the current is not only transmitted to the upper surface of the magnetic head 5 through the welding head 4, but also transmitted to the left and right side surfaces of the magnetic head 5 through the conductive block 105 and the electrode plate 106, and then transmitted to the magnetic head 5 through multiple current paths, so that the current transmission is more stable, and the problem that the welding head 4 only forms a single contact surface with the upper surface of the magnetic head 5, which reduces the effective current actually acting on the welding surface, causes insufficient current density in the local area of the welding surface, and increases the risk of false welding and cold welding is solved.

[0032] Further, it is also considered that the welding of the magnetic head 5 requires high precision, but in the welding process, in order to ensure the stability of the welding of the magnetic head 5 and the connecting piece 6, it is necessary to continuously move downward by the first electric push rod 3 to drive the welding head 4 to exert a certain pressure on the magnetic head 5 and the connecting piece 6. However, in this process, because the welding head 4 continuously exerts downward pressure on the magnetic head 5, and the magnetic head 5 is not fixed with the connecting piece 6 before the welding is completed, it is difficult to always maintain a stable positioning state when bearing the continuous downward pressure, and the magnetic head 5 is prone to deviate from the preset welding position, which affects the welding precision. Therefore, the second electric push rod 104 drives the sliding plate 103 to move to the side close to the welding head 4, so that the vertical part 10303 contacts the magnetic head 5, and the magnetic head 5 is also clamped and fixed, which prevents the welding head 4 from continuously exerting downward pressure on the magnetic head 5, causes the magnetic head 5 to deviate, and affects the welding precision.

[0033] In the further preferred embodiment of the present application, as shown in Figure 3 and Figure 4 , the sliding plate 103 is an epoxy glass cloth plate.

[0034] In this embodiment, the sliding plate 103 has good insulation and heat insulation, is resistant to high temperature, has high impact strength, is not easy to deform, and has a long service life.

[0035] In the further preferred embodiment of the present application, as shown inFigure 3 and Figure 4 As shown in the figure, the conductive block 105 is composed of a plurality of contact points arranged in a rectangular array, and the number of contact points is increased.

[0036] In this embodiment, by means of the plurality of contact points, the local area of the lower surface of the welding head 4 is prevented from being adhered to welding slag, which causes poor contact of the conductive block 105 and affects the conductive effect and the heating effect of the electrode plate 106.

[0037] In further preferred embodiments of the present application, as shown in Figure 3 the welding head 4 is provided with a protective shell 102.

[0038] In this embodiment, the worker is prevented from being scalded by accidentally touching the welding head 4 during work, and the heat generated during the work of the welding head 4 is prevented from being transmitted to the internal parts of the fixing block 101, causing the internal parts of the fixing block 101 to overheat and be damaged, affecting the service life of the equipment.

[0039] In further preferred embodiments of the present application, as shown in Figure 3 the protective shell 102 is made of insulating material.

[0040] In this embodiment, the current in the positive electrode of the welding head 4 during work is prevented from being transmitted to the internal parts of the fixing block 101, causing the internal parts of the fixing block 101 to short circuit and be damaged, affecting the normal operation of the equipment.

[0041] In further preferred embodiments of the present application, as shown in Figure 3 and Figure 4 the welding head 4 is provided with fins 108 and cooling plates 109; each sliding plate 103 is fixedly connected with a cooling plate 109; each cooling plate 109 is connected with a water inlet pipe 10901 and a water outlet pipe 10902; and a plurality of fins 108 are fixedly connected between each cooling plate 109 and the corresponding electrode plate 106.

[0042] In this embodiment, considering that the contact between the welding head 4 and the magnetic head 5 during welding will generate a transient high temperature, and the traditional spot welding machine lacks a targeted rapid cooling design, causing a long cooling time after welding is completed, significantly prolonging the production cycle of a single process and restricting the overall production efficiency, therefore, after the external power supply is turned off, the external cooling liquid conveying device is started to convey cooling liquid to the cooling plate 109 through the water inlet pipe 10901, the external cooling liquid recovery device is started to discharge the cooling liquid in the cooling plate 109 after heat exchange through the water outlet pipe 10902, and then the cooling plate 109 continuously generates cold air through the continuously flowing cooling liquid, and then the cold air is transmitted to the electrode plate 106 through the fins 108, and then to the magnetic head 5 and the welding surface through the electrode plate 106, thereby achieving rapid cooling after welding is completed, shortening the production cycle of a single process and improving the production efficiency.

[0043] In further preferred embodiments of the present application, as shown in Figure 3 Figure 4 The vertical part 10303 is further provided with a slag scraping block 107 on the upper side and the lower side.

[0044] In this embodiment, considering that there are pollutants such as air dust and metal debris in the welding environment, and metal oxide layers and spatters are generated due to high temperature in the welding process, these substances are easy to adhere to the contact surface of the welding head 4 and the magnetic head 5, forming impurities, affecting the conductive effect of the contact surface of the magnetic head 5 and the welding head 4, and affecting the conductive effect of the contact surface of the conductive block 105 and the welding head 4, therefore, after the cooling plate 109 cools the magnetic head 5, the sliding plate 103 is moved away from the welding head 4 by the second electric push rod 104, the clamping of the vertical part 10303 on the magnetic head 5 is released, and then the fixed block 101 and the welding head 4 are moved upward by the first electric push rod 3, so that the welding head 4 moves upward by a distance equal to the height of the vertical part 10303, and then the corresponding sliding plate 103 is moved toward the welding head 4 by the second electric push rod 104 on the left side, so that the pressure part 10302 is attached to the protective shell 102, at this time the vertical part 10303 has moved to the right side of the magnetic head 5, in the process of moving the sliding plate 103, when the sliding plate 103 moves to the left edge of the welding head 4, as the sliding plate 103 continues to move, the slag scraping block 107 on the upper side of the vertical part 10303 will contact the lower surface of the magnetic head 5, and then the impurities adhered to the lower surface of the magnetic head 5 will be scraped off, when the sliding plate 103 moves to the left edge of the magnetic head 5, as the sliding plate 103 continues to move, the slag scraping block 107 on the lower side of the vertical part 10303 will contact the upper surface of the magnetic head 5, and then the impurities adhered to the upper surface of the magnetic head 5 will be scraped off, thereby solving the problem that the contact surface of the welding head 4 and the magnetic head 5 is easy to adhere to impurities, affecting the conductive effect of the contact surface of the magnetic head 5 and the welding head 4, and affecting the conductive effect of the contact surface of the conductive block 105 and the welding head 4, after the impurities on the contact surface of the welding head 4 and the magnetic head 5 are scraped off, the sliding plate 103 is moved to reset by the second electric push rod 104, the fixed block 101 and the welding head 4 are moved to reset by the first electric push rod 3, and then the next welding operation of the magnetic head 5 and the connecting piece 6 is performed.

[0045] In further preferred embodiments of the present application, as shown in Figure 4

[0046] In this embodiment, the conductive block 105 and the electrode plate 106 have good conductivity and heat conductivity, and when the cooling plate 109 is refrigerated, the fins 108 can also quickly cause the cooling of the electrode plate 106, so that the electrode plate 106 is quickly cooled, and then the magnetic head 5 is quickly cooled.

[0047] Embodiment 2: on the basis of embodiment 1, as shown in Figure 2 ​​And Figure 5 As shown in the figure, the first visual sensor 201 is fixed on the fixed block 101.

[0048] In this embodiment, considering that in the welding operation of the magnetic head 5, virtual welding, false welding and other hidden defects may occur due to the quality of the magnetic head 5 and the connecting piece 6, welding equipment failure and other problems, in order to avoid unqualified products from flowing into the next process, in the traditional production process, the magnetic head 5 needs to be detected by an additional detection device after welding is completed, which increases the equipment investment and labor cost, therefore, after the impurities on the contact surface between the welding head 4 and the magnetic head 5 are removed by the slag scraping block 107, the sliding plate 103 is first moved and reset by the second electric push rod 104, and then the fixed block 101 is lowered by the first electric push rod 3, it is known that the welding head 4 does not contact the magnetic head 5 during this time, then the second electric push rod 104 on the left side drives the sliding plate 103 on the left side to continuously move towards the side close to the magnetic head 5, the second electric push rod 104 on the right side drives the sliding plate 103 on the right side to move towards the side close to the magnetic head 5, and the vertical part 10303 on the right side is moved to a position 2cm to the right side of the magnetic head 5, when the vertical part 10303 on the left side contacts the magnetic head 5, the vertical part 10303 on the left side will extrude the magnetic head 5, in this process, the first visual sensor 201 is used for real-time detection, when the magnetic head 5 is detected to be extruded and fall off, it indicates that the welding is unqualified, when the magnetic head 5 does not produce deviation and fall off, it indicates that it is qualified, and then the welding quality of the magnetic head 5 is directly detected by this method, which reduces the equipment investment and labor cost, and when the magnetic head 5 falls off, the magnetic head 5 can be blocked by the vertical part 10303 on the right side, so as to avoid the splashing of the fallen magnetic head 5 from causing harm to the surrounding workers.

[0049] In the further preferred embodiment of the present application, as shown in Figure 1 And Figure 5 As shown in the figure, the second visual sensor 202 is fixed on the conveying frame 1, and the second visual sensor 202 is located below the fixed frame 2.

[0050] In this embodiment, the second visual sensor 202 is used for real-time detection of the conveying of the magnetic head 5 and the connecting piece 6, when the conveying frame 1 fails and causes deviation of the conveying position of the magnetic head 5 and the connecting piece 6, an alarm is sent to the workers to inform the workers, so that the workers can find and solve the problem in time, and the production efficiency is improved.

[0051] Although the present disclosure has been described only with respect to a limited number of embodiments, those skilled in the art who benefit from the present disclosure will understand that various other embodiments can be designed without departing from the scope of the present application. Therefore, the scope of the present application should be limited only by the appended claims.

Claims

1. A fully automatic spot welding machine for magnetic head production, comprising a conveyor frame (1), a fixed frame (2), a first electric push rod (3), a welding head (4) and a negative electrode (7) mounted on the first electric push rod (3); the fixed frame (2) is fixedly connected to the conveyor frame (1); the first electric push rod (3) is fixedly connected to the fixed frame (2); two negative electrodes (7) symmetrically arranged front and rear are connected to the lower side of the first electric push rod (3); characterized in that, It also includes a fixing block (101) fixed to the first electric push rod (3); the welding head (4) and the negative electrode (7) are both installed on the lower side of the fixing block (101); the left and right sides of the fixing block (101) are slidably connected to sliding plates (103); two second electric push rods (104) are fixedly fixed on the fixing block (101) and fixedly connected to the output ends of the corresponding sliding plates (103); each sliding plate (103) is Z-shaped, consisting of a pressure part (10302), a horizontal part (10301) and a vertical part (10303); the upper surface of the horizontal part (10301) is flush with the lower surface of the welding head (4); the pressure part (10302) is fixedly connected to the corresponding second electric push rod (104); each vertical part (10303) is fixedly connected to an electrode plate (106) on the side facing the welding head (4); each conductive block (105) is connected to the corresponding electrode plate (106); After the welding head (4) contacts the magnetic head (5), the second electric push rod (104) is activated to drive the sliding plate (103) to move closer to the welding head (4). When the vertical part (10303) contacts the magnetic head (5), the electrode plate (106) contacts the magnetic head (5), and the second electric push rod (104) stops extending. During this process, because the welding head (4) is larger than the magnetic head (5), when the sliding plate (103) moves to the edge of the welding head (4), the sliding plate moves closer to the magnetic head (5). As the plate (103) continues to move, the upper surface of the transverse part (10301) will come into contact with the surface of the welding head (4), thereby making the conductive block (105) contact the welding head (4). After the external power supply is turned on, the current will not only be transmitted to the upper surface of the magnetic head (5) through the welding head (4), but also to the electrode plate (106) through the conductive block (105), and then to the left and right sides of the magnetic head (5), thereby transmitting the current through multiple current paths.

2. A fully automatic spot welding machine for magnetic head production according to claim 1, characterized in that, The sliding plate (103) is an epoxy glass cloth plate.

3. A fully automatic spot welding machine for magnetic head production according to claim 1, characterized in that, The conductive block (105) consists of multiple contacts arranged in a rectangular array.

4. A fully automatic spot welding machine for magnetic head production according to claim 1, characterized in that, It also includes a protective shell (102) fixed to the welding head (4).

5. A fully automatic spot welding machine for magnetic head production according to claim 4, characterized in that, The protective shell (102) is made of insulating material.

6. A fully automatic spot welding machine for magnetic head production according to claim 1, characterized in that, It also includes fins (108) and cooling plates (109) fixed on sliding plates (103); each cooling plate (109) is connected to an inlet pipe (10901) and an outlet pipe (10902); each cooling plate (109) is fixed to a number of fins (108) with respect to the corresponding electrode plate (106).

7. A fully automatic spot welding machine for magnetic head production according to claim 1, characterized in that, It also includes a scraper block (107) fixed to the vertical part (10303).

8. A fully automatic spot welding machine for magnetic head production according to claim 6, characterized in that, The conductive block (105) and the electrode plate (106) are made of copper.

9. A fully automatic spot welding machine for magnetic head production according to claim 1, characterized in that, It also includes a first vision sensor (201) fixed to a fixed block (101).

10. A fully automatic spot welding machine for magnetic head production according to claim 1, characterized in that, It also includes a second vision sensor (202) fixed to the conveyor frame (1).

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