Frame contact silver point fully automatic welding machine

Abstract

The present application relates to the technical field of circuit breaker contact assembly equipment, and specifically discloses a fully automatic welding machine for frame contact silver points, comprising five functional modules: a contact dual-flexible feeding unit, a contact picking and solder paste coating unit, a silver contact vibration feeding unit, a silver point positioning and suction cup picking unit, and an automatic welding unit. The dual-flexible feeding unit and the silver contact vibration feeding unit are located on either side of the automatic welding unit, respectively, and the contact picking and solder paste coating unit is located between the dual-flexible feeding unit and the automatic welding unit, for providing contact sheets to the automatic welding unit. The silver point positioning and suction cup picking unit is located between the silver contact vibration feeding unit and the automatic welding unit, for providing the automatic welding unit with a long silver point with an arc-shaped convex surface facing upward. The fully automatic welding machine for frame contact silver points disclosed in the present application has the advantage of effectively improving the production efficiency of contact silver point welding.

Description

Technical Field

[0001] The present application relates to the technical field of circuit breaker contact assembly equipment, and in particular to a fully automatic silver-point welding machine for frame contacts. Background Art

[0002] Contacts are common components in circuit breakers, typically divided into static and moving contacts, and are often used to connect contact blades to achieve conduction. Some circuit breakers have multiple moving contact components, and each moving contact has multiple contact blades that require soldering. Manual welding is commonly used in the industry, but this method is labor-intensive and directly affects welding quality and production efficiency depending on the worker's skill level.

[0003] Furthermore, welding the frame contacts in the frame circuit breaker requires the use of long, convex silver points with an arc-shaped surface facing upward. Since these silver points are arc-shaped upward, using ordinary electrodes for welding will wear the silver points, thereby affecting the welding quality and efficiency. Furthermore, welding these silver points places high demands on the operator, further affecting welding efficiency.

[0004] Therefore, it is very necessary to provide a frame contact silver point fully automatic welding machine that can effectively improve the production efficiency of frame contact silver point welding. Summary of the Invention

[0005] In order to improve the production efficiency of frame contact silver point welding, the present application provides a frame contact silver point fully automatic welding machine, which is specifically implemented in the following way:

[0006] A fully automatic welding machine for frame contact silver points, comprising five functional modules: a contact double-flexible feeding unit, a contact picking and solder paste coating unit, a silver contact vibration feeding unit, a silver point positioning and suction cup picking unit, and an automatic welding unit.

[0007] The contact double-flexible feeding unit and the silver contact vibration feeding unit are respectively located on both sides of the automatic welding unit, and the contact material picking and solder paste coating unit is located between the contact double-flexible feeding unit and the automatic welding unit, and is used to provide contact sheets for the automatic welding unit; the silver point positioning and suction cup picking unit is located between the silver contact vibration feeding unit and the automatic welding unit, and is used to provide the automatic welding unit with long silver points with arc-shaped convex surfaces facing upwards;

[0008] The automatic welding unit includes an upper electrode tooling, which includes a vertically arranged plum blossom electrode. The plum blossom electrode is provided with a plurality of electrode positions matching the arc-shaped convex surface of the silver point in a circular circle.

[0009] Furthermore, the contact dual flexible feeding unit includes a flexible feeding module and a flexible vibration disk. The flexible feeding module includes a contact storage bin, a lifting crawler and a contact feeding vibration disk. The loading end of the lifting crawler is connected to the contact storage bin, and the unloading end is connected to the feeding end of the contact feeding vibration disk; the discharging end of the contact feeding vibration disk is connected to the flexible vibration disk.

[0010] Furthermore, the contact picking and solder paste coating unit includes a first CCD visual inspection device for selecting a contact piece with a suitable position in the contact double flexible feeding unit and accurately positioning the contact position, and also includes an automatic rotating tool, a solder paste cylinder and a contact picking robot;

[0011] The fully automatic welding machine also includes a frame, and the first CCD visual inspection device is connected to the frame; the mechanical arm of the contact picking robot is provided with a vacuum suction cup for picking up the contact sheet at the contact double flexible loading unit; the automatic rotating tooling is located between the first CCD visual inspection device and the contact picking robot, and the automatic rotating tooling includes a circular rotating table, at least one workpiece clamping device arranged along the radius of the rotating table, and a contact rotating cylinder connected to the frame;

[0012] The rotating shaft of the rotary table is arranged horizontally, and the output shaft of the contact rotating cylinder is connected to the rotary table for driving the rotary table to rotate; when the rotary table drives the clamped workpiece to rotate to a horizontal position, the material-taking vacuum suction cup sucks the contact piece to the clamped workpiece, and the contact piece is in a horizontal state; when the driving table drives the clamped workpiece to rotate to a vertical position, the contact piece is in a vertical state;

[0013] The solder paste cylinder is connected to a first driving member for driving the solder paste cylinder to move toward the clamped workpiece, and the robotic arm of the contact picking robot is also provided with a contact claw for clamping the vertical contact piece coated with solder paste to the automatic welding unit.

[0014] Furthermore, the clamping workpiece includes a clamping block arranged along the radial direction of the rotating table, and the clamping block is provided with a groove for the contact piece to be inserted from a direction away from the center of the rotating table.

[0015] Furthermore, the silver contact vibration loading unit (3) comprises a silver contact vibration plate for providing silver contacts with an arc-shaped convex surface facing upwards for the silver contact positioning and suction cup picking unit.

[0016] Furthermore, the silver point positioning and suction cup picking unit includes a silver point picking robot and a silver point loading and positioning tooling, and the silver contact vibration loading unit is connected to the silver point loading and positioning tooling; the silver point picking robot is provided with a silver point vacuum suction cup for sucking up the silver points at the silver point loading and positioning tooling and placing them on the automatic welding unit.

[0017] Furthermore, the upper electrode fixture further comprises an upper frame and a connecting block, the connecting block is slidably connected to the upper frame, the connecting block is connected to a vertically arranged driving cylinder, the driving cylinder is used to drive the connecting block downward; the plum blossom electrode is detachably connected to the connecting block by a pin;

[0018] The automatic welding unit further comprises a lower electrode tooling for vertically placing the contact piece, the lower electrode tooling comprises a lower frame and a lower electrode, and the lower electrode is detachably connected to the lower frame via a pin.

[0019] Furthermore, the automatic welding unit includes a second CCD visual inspection device for identifying and determining whether the product is qualified or not, a qualified finished product unloading guide rail and a unqualified product unloading guide rail;

[0020] The silver point picking robot is also provided with a finished product clamping claw for clamping qualified products determined by the second CCD visual inspection device to the qualified finished product unloading rail, and clamping unqualified products determined by the second CCD visual inspection device to the unqualified product unloading rail.

[0021] Furthermore, the lower electrode is connected to an internal water circulation device for improving welding smoothness; the internal water circulation device includes a water circulation pipe and an equipment water pressure control component, the equipment water pressure control component is connected to the water circulation pipe and is used to control the water pressure in the water circulation pipe; the water circulation pipe is connected to the water channel hole of the lower electrode.

[0022] In summary, this application has the following beneficial effects:

[0023] In this application, a silver contact vibration loading unit is used to realize the vibration loading of silver contacts, eliminating the steps of manual visual inspection and sorting, effectively improving efficiency; at the same time, a contact double-flexible vibration loading unit is used to realize the loading of contact sheets, improving the accuracy of material retrieval;

[0024] The innovative plum blossom-shaped electrode in the automatic welding unit of this application realizes efficient replacement of the upper electrode and makes full use of the electrode tooling; the lower electrode and the lower frame in the lower electrode tooling are detachably connected, and when contact pieces of different shapes need to be welded, the lower electrode can be quickly changed. The internal water circulation ensures welding stability and effectively protects the entire module. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of a frame contact silver point fully automatic welding machine according to an embodiment of the present application;

[0026] Figure 2 This is a top view of a frame contact silver point fully automatic welding machine according to an embodiment of the present application;

[0027] Figure 3This is a positional relationship diagram of the contact dual-flexible feeding unit and the contact material taking and solder paste coating unit in an embodiment of the present application;

[0028] Figure 4 A diagram showing the positional relationship between the contact pick-up robot, solder paste cylinder, and automatic rotary tooling in an embodiment of the present application;

[0029] Figure 5 A diagram showing the positional relationship between the silver point vibration plate, the silver point material picking robot, and the silver point vacuum suction cup in an embodiment of the present application;

[0030] Figure 6 This is a schematic diagram of the structure of the silver point picking robot in the embodiment of the present application;

[0031] Figure 7 for Figure 6 Enlarged view of point A in the middle;

[0032] Figure 8 This is a positional relationship diagram of the automatic welding unit and the welding control cabinet in the embodiment of the present application;

[0033] Figure 9 This is a structural diagram of the automatic welding unit in an embodiment of the present application;

[0034] Figure 10 for Figure 9 Enlarged view of point B in the middle;

[0035] Explanation of the accompanying symbols: 1. Contact double flexible feeding unit; 11. Contact storage bin; 12. Lifting crawler; 13. Contact feeding vibration disk; 14. Flexible vibration disk; 2. Contact picking and solder paste coating unit; 21. First CCD visual inspection equipment; 22. Contact picking robot; 221. Picking vacuum suction cup; 222. Contact claw; 23. Solder paste cylinder; 24. Automatic rotating tooling; 241. Clamping workpiece; 242. Contact rotating cylinder; 3. Silver contact vibration feeding unit; 31. Silver point vibration disk ; 4. Silver point positioning and suction cup picking unit; 41. Silver point vacuum suction cup; 42. Silver point picking robot; 43. Silver point loading and positioning tooling; 44. Finished product clamping claws; 5. Automatic welding unit; 51. Second CCD visual inspection equipment; 52. Plum blossom motor; 53. Lower electrode; 54. Contact clamping device; 55. Qualified finished product unloading guide rail; 56. Unqualified product unloading guide rail; 6. Electrical control cabinet; 7. Welding control cabinet; 8. Equipment switch control box; 9. Water circulation pipeline; 10. Equipment water pressure control parts. DETAILED DESCRIPTION

[0036] The specific contents of the present invention are further explained in detail below with reference to the accompanying drawings.

[0037] This application provides a frame contact silver point fully automatic welding machine, referring to Figure 1and Figure 2 The fully automatic soldering machine includes five functional modules: a contact dual-flexible feeding unit 1, a contact picking and solder paste coating unit 2, a silver contact vibration feeding unit 3, a silver point positioning and suction cup picking unit 4, and an automatic soldering unit 5. The contact dual-flexible feeding unit 1, the silver contact vibration feeding unit 3, and the automatic soldering unit 5 are located in the same straight line, and the contact dual-flexible feeding unit 1 and the silver contact vibration feeding unit 3 are respectively located on both sides of the automatic soldering unit 3, and the contact picking and solder paste coating unit 2 is located between the contact dual-flexible feeding unit 1 and the automatic soldering unit 5, and the silver point positioning and suction cup picking unit 4 is located between the silver contact vibration feeding unit 3 and the automatic soldering unit 5.

[0038] The fully automatic welding machine also includes an electrical control cabinet 6, a welding control cabinet 7, an equipment switch control box 8, and a frame. The electrical control cabinet 6 houses the electrical control equipment and systems for controlling the normal operation of the dual-flexible contact loading unit 1, the contact pick-up and solder paste coating unit 2, the silver contact vibration loading unit 3, the silver point positioning and suction cup picking unit 4, and the automatic welding unit 5. The welding control cabinet 7 houses the welding control equipment and systems for controlling the normal welding of the automatic welding unit 5. The equipment switch box 8 houses switches for controlling the electrical control equipment and systems within the electrical control cabinet 6 and the welding control cabinet 7. The dual-flexible contact loading unit 1, the contact pick-up and solder paste coating unit 2, the silver contact vibration loading unit 3, the silver point positioning and suction cup picking unit 4, and the automatic welding unit 5 are connected via the frame. The automatic welding unit 5 includes a qualified product discharge guide 55 and a rejected product discharge guide 56 located near the silver point positioning and suction cup picking unit 4.

[0039] Reference Figure 3 and Figure 4 The contact dual-flexible feeding unit 1 includes a flexible feeding module and a flexible vibration plate 14. The flexible feeding module includes a contact storage bin 11, a lifting track 12, and a contact loading vibration plate 13. The loading end of the lifting track 12 is connected to the contact storage bin 11, and the unloading end is connected to the feeding end of the contact loading vibration plate 13, which is used to evenly feed the contact pieces in the contact storage bin 11 to the contact loading vibration plate 13. The discharge end of the contact loading vibration plate 13 is connected to the flexible vibration plate 14 to supply the flexible vibration plate 14. The discharge end of the flexible vibration plate 14 is arranged toward the contact material removal and solder paste coating unit 2, and is used to provide the contact material removal and solder paste coating unit 2 with contact pieces in a horizontal state.

[0040] The contact picking and solder paste coating unit 2 includes a first CCD visual inspection device 21 for selecting a contact piece with a suitable position in the flexible vibration disk 14 and accurately positioning the contact position, and also includes an automatic rotating tool 24, a solder paste cylinder 23 and a contact picking robot 22; the first CCD visual inspection device 21 is connected to the frame, and the mechanical arm of the contact picking robot 22 is provided with a picking vacuum suction cup 221 and a contact clamping claw 222; the automatic rotating tool 24 is located between the first CCD visual inspection device 21 and the contact picking robot 22, and the automatic rotating tool 24 includes a circular rotating table, at least one clamping workpiece 241 arranged along the radial direction of the rotating table, and a contact rotating cylinder 242 connected to the frame. The rotating axis of the rotating table is arranged horizontally, and the output shaft of the contact rotating cylinder 242 is connected to the rotating table for driving the rotating table to rotate. The clamping workpiece 241 includes a clamping block arranged along the radial direction of the rotating table, and the clamping block is provided with a groove for inserting the contact piece away from the center of the rotating table.

[0041] When the rotating table drives the clamping block to rotate to the horizontal position, the groove opening is horizontally facing away from the center of the rotating table. After the contact picking robot 22 picks up the horizontal contact piece in the flexible vibration disk 14 at a suitable position, it is placed in the automatic rotating tooling 24 at the clamping workpiece 241 in a horizontal position. The picking vacuum suction cup 221 can drive the contact piece to be horizontally inserted into the groove. At this time, the contact piece is in a horizontal position, so that the clamping workpiece 241 can be clamped by the automatic rotating tooling 23 to clamp the contact piece. The contact rotating cylinder 242 of the automatic rotating tooling 24 rotates, thereby driving the clamped workpiece 241 to rotate 90° clockwise to a vertical position, which can drive the contact piece to a vertical position, and the contact welding point of the contact piece is facing the discharge port of the solder paste cylinder 23. The solder paste cylinder 23 is connected to a first driving member for driving the solder paste cylinder 23 to move horizontally, and the first driving member is fixedly connected to the frame. The first driving member can be a structure or equipment such as a cylinder or an oil cylinder that can drive the solder paste cylinder 23 to move horizontally; the first driving member drives the solder paste cylinder 23 to move horizontally, which can make the solder paste cylinder 23 move toward the contact piece, thereby quantitatively coating the contact welding point of the contact piece, and then the contact claw 22 of the contact picking robot 22 will take the contact piece coated with solder paste to the automatic welding unit 5.

[0042] Reference Figure 5 and Figure 6The silver contact vibrating feeding unit 3 includes a silver contact vibrating plate 31, which is used for automatically and continuously providing silver contacts with arc-shaped convex strips facing upward for the silver contact positioning and suction cup picking unit 4. The silver contact vibrating plate 31 includes a vibrating plate body and a screening guide rail. The screening guide rail includes a feeding guide rail, a flipping guide rail and a discharging guide rail connected in sequence. The vibrating output track of the vibrating plate body is connected to the feeding guide rail; and the bottom wall width of the feeding guide rail is greater than or equal to the width of the long strip silver contacts and less than the length of the long strip silver contacts, allowing silver contacts with a length direction consistent with the conveying direction to pass through. In this way, the feeding guide rail can screen out silver contacts with a length direction consistent with the conveying direction, and silver contacts with a length direction inconsistent with the conveying direction can fall into the vibrating plate body for secondary screening.

[0043] The bottom wall of the feed guide rail flips over and transitions to the side wall of the flip guide rail. The width of the flip guide rail is smaller than the thickness of the arc-shaped convex surface of the silver dots, allowing the silver dots with square bottom surfaces that fit the side wall of the flip guide rail to pass through. In this way, the flip guide rail can screen out the silver dots with square bottom surfaces that fit the side wall of the flip guide rail, and the silver dots with arc-shaped convex surfaces that fit the side wall of the flip guide rail can fall into the vibrating plate body for secondary screening.

[0044] The side wall of the flipping guide rail flips over and transitions to the bottom wall of the discharging guide rail, that is, the bottom wall of the feed guide rail, the bottom wall of the flipping guide rail and the bottom wall of the discharging guide rail are formed in one piece, and the discharging guide rail is connected to the silver point positioning and suction cup picking unit 4, and is used to provide a long strip of silver point with an arc-shaped convex surface facing upward for the output of the silver point positioning and suction cup picking unit 4.

[0045] Reference Figure 6 and Figure 7 The silver dot positioning and suction cup retrieving unit 4 includes a silver dot loading and positioning fixture 43 and a silver dot retrieving robot 42. The discharge rail in the silver dot vibrating plate 31 is connected to the silver dot loading and positioning fixture 43. The silver dot is transported by the silver dot vibrating plate 31 to the position of the silver dot loading and positioning fixture 43. When the silver dot is in the position of the silver dot loading and positioning fixture 43, the curved convex surface of the silver dot faces upward. The silver dot retrieving robot 42 is equipped with a silver dot vacuum suction cup 41 and a finished product gripper 44. After the silver dot positioning and suction cup retrieving unit 4 confirms the position of the silver dot in the position of the silver dot loading and positioning fixture 43 through optical fiber positioning, the silver dot vacuum suction cup 41 picks up the silver dot and places it in the position where the contact sheet is coated with solder paste in the automatic welding unit 5. A qualified finished product unloading rail 55 is located between the silver dot retrieving robot 42 and the welding control cabinet 7.

[0046] Reference Figure 8 、 Figure 9 and Figure 10The automatic welding unit 5 includes an upper electrode tooling and a lower electrode tooling for vertically placing the contact piece. The upper electrode tooling includes an upper frame, a connecting block, and a vertically arranged plum blossom electrode 52. The connecting block is slidably connected to the upper frame. The connecting block is connected to a vertically arranged drive cylinder, which is used to drive the connecting block downward. The plum blossom electrode 52 is provided with a plurality of electrode positions matching the arc-shaped convex surface of the silver dot around a circle, and the plum blossom electrode 52 is detachably connected to the connecting block by pins. In this embodiment, the number of electrode positions is twelve, and the twelve electrode positions are evenly distributed. When an electrode position is worn, the next electrode position can be efficiently and quickly replaced for continued use. The lower electrode tooling includes a lower frame and a lower electrode 53. The lower electrode 53 is detachably connected to the lower frame by pins. In this way, when the shape of the contact piece to be welded changes, it can be replaced with a lower electrode 53 that matches the shape of the contact piece.

[0047] The lower frame is also connected to a contact clamping device 54, located above the lower electrode 53. This device is used to clamp the contact piece, reducing the possibility of displacement during welding, which could affect the welding effect. The contact clamping device 54 also allows for secondary positioning of the contact piece, reducing the possibility of contact piece displacement affecting the welding effect. The lower electrode 53 is also connected to an internal water circulation device for improving welding stability. The internal water circulation device includes a water circulation pipe 9 and a device water pressure control unit 10. The device water pressure control unit 10 is connected to the water circulation pipe 9 and is used to control the temperature, flow rate, and water pressure of the water flow within the water circulation pipe 9. The water circulation pipe 9 is connected to the waterway hole of the lower electrode 53. The internal water circulation device improves welding stability and protects the automatic welding unit 5. A defective product unloading guide 56 is provided between the lower electrode 53 and the silver point material collection robot 42.

[0048] The automatic welding unit 5 also includes a second CCD visual inspection device 51, which is used to identify whether the product is qualified or not. The finished product clamping claw 44 is used to clamp the qualified products determined by the second CCD visual inspection device 51 to the qualified finished product unloading guide rail 55, and to clamp the unqualified products determined by the second CCD visual inspection device 51 to the unqualified product unloading guide rail 56.

[0049] In this way, the solder-coated contact sheet is placed on the lower electrode fixture by the contact picker robot 22 and clamped. After the silver dot is positioned, the plum blossom electrode 52 is pressed down, and the contact clamping device 54 is released, and discharge welding begins. The welded product is automatically judged for quality by the second CCD visual inspection device 51. The finished product is then picked up and unloaded by the finished product gripper 44 of the silver dot picker robot 42, and then placed at a fixed location.

[0050] The present invention relates to a fully automatic welding machine for frame contact silver points. Prior to welding, a lower electrode 53 matching the contact piece to be welded is installed on the lower frame according to the shape of the contact piece to be welded. Subsequently, the lifting track 12 operates, and the contact pieces in the contact storage bin 11 are transported to the contact loading vibration plate 13 via the lifting track 12. The contact pieces are then transported to the flexible vibration plate 14 via the contact loading vibration plate 13.

[0051] Afterwards, when the rotating table drives the clamping block to rotate to the horizontal position, the material picking vacuum suction cup 221 of the contact picking robot 22 picks up the horizontal contact piece in the appropriate position in the flexible vibration disk 14, and the material picking vacuum suction cup 221 can drive the contact piece to be horizontally inserted into the groove, so that the clamping workpiece 241 can clamp the contact piece; the contact rotating cylinder 242 rotates, thereby driving the contact piece to rotate 90° clockwise to a vertical state, so that the contact piece is in a vertical state, so that the contact welding point of the contact piece is facing the discharge port of the solder paste cylinder 23, and the first driving member drives the solder paste cylinder 23 to move toward the contact piece, so that the solder paste can be quantitatively applied to the contact welding point of the contact piece, and then the contact claw 22 of the contact picking robot 22 picks up the contact piece coated with solder paste and delivers it to the lower electrode 53 in the automatic welding unit 5;

[0052] At the same time, the silver dot with an arc-shaped convex surface facing upward is transported by the silver dot vibration disk 31 in the silver contact vibration feeding unit 3 to the position of the silver dot feeding positioning tool 43 with the arc-shaped convex surface facing upward. After the silver dot positioning and suction cup picking unit 4 confirms the position of the silver dot in the position of the silver dot feeding positioning tool 43 through optical fiber positioning, the silver dot vacuum suction cup 41 picks up the silver dot and places the silver dot at the position where the contact piece is coated with solder paste in the automatic welding unit 5;

[0053] The clamping device 54 in the automatic welding unit 5 realizes the clamping and secondary positioning of the contact piece. After the silver point is positioned and placed by the silver point vacuum suction cup 41, the plum blossom electrode 52 is pressed down, and the contact clamping device 54 is released at the same time, and discharge welding is performed to realize the welding of the contact silver point. The welded product is automatically judged by the second CCD visual inspection device 51 to determine whether the product is qualified or not, and the finished product clamping claw 44 of the silver point picking robot 42 is clamped and unloaded, and the material is discharged at a fixed point. The qualified products determined by the second CCD visual inspection device 51 are clamped to the qualified finished product unloading guide 55, and the unqualified products determined by the second CCD visual inspection device 51 are clamped to the unqualified product unloading guide 56; in this way, the fully automatic welding machine for frame contact silver points of the present application effectively improves the production efficiency of frame contact silver point welding.

Claims

1. A frame contact silver point fully automatic welding machine, characterized by: It comprises five functional modules: a contact double-flexible feeding unit (1), a contact picking and solder paste coating unit (2), a silver contact vibration feeding unit (3), a silver point positioning and suction cup picking unit (4), and an automatic welding unit (5); The contact double-flexible feeding unit (1) and the silver contact vibration feeding unit (3) are respectively located on both sides of the automatic welding unit (5), and the contact material taking and solder paste coating unit (2) is located between the contact double-flexible feeding unit (1) and the automatic welding unit (5) and is used to provide contact sheets for the automatic welding unit (5); the silver point positioning and suction cup taking unit (4) is located between the silver contact vibration feeding unit (3) and the automatic welding unit (5) and is used to provide the automatic welding unit (5) with a long strip of silver points with an arc-shaped convex surface facing upwards; The automatic welding unit (5) comprises an upper electrode tooling, the upper electrode tooling comprising a vertically arranged plum blossom electrode (52), and the plum blossom electrode (52) is provided with a plurality of electrode positions matching the silver dot arc convex surface in a circular manner.

2. The frame contact silver point fully automatic welding machine according to claim 1, characterized in that: The contact double-flexible feeding unit (1) comprises a flexible feeding module and a flexible vibration disk (14); the flexible feeding module comprises a contact storage bin (11), a lifting crawler (12) and a contact feeding vibration disk (13); the feeding end of the lifting crawler (12) is connected to the contact storage bin (11), and the discharging end is connected to the feeding end of the contact feeding vibration disk (13); the discharging end of the contact feeding vibration disk (13) is connected to the flexible vibration disk (14).

3. The frame contact silver point fully automatic welding machine according to claim 1, characterized in that: The contact pick-up and solder paste coating unit (2) comprises a first CCD visual detection device (21) for selecting a contact piece with a suitable position in the contact double-flexible loading unit (1) and accurately positioning the contact position, and also comprises an automatic rotating tool (24), a solder paste cylinder (23) and a contact pick-up robot (22); The fully automatic welding machine also includes a frame, the first CCD visual inspection device (21) is connected to the frame; the mechanical arm of the contact picking robot (22) is provided with a picking vacuum suction cup (221) for picking up the contact sheet at the contact double flexible loading unit (1); the automatic rotating tool (24) is located between the first CCD visual inspection device (21) and the contact picking robot (22), and the automatic rotating tool (24) includes a circular rotating table, at least one clamping workpiece (241) arranged along the radius of the rotating table, and a contact rotating cylinder (242) connected to the frame; The rotating shaft of the rotating table is arranged horizontally, and the output shaft of the contact rotating cylinder (242) is connected to the rotating table for driving the rotating table to rotate; when the rotating table drives the clamping workpiece (241) to rotate to a horizontal position, the material-taking vacuum suction cup (221) sucks the contact piece to the clamping workpiece (241), and the contact piece is in a horizontal state; when the driving table drives the clamping workpiece (241) to rotate to a vertical position, the contact piece is in a vertical state; The solder paste cylinder (23) is connected to a first driving member for driving the solder paste cylinder (23) to move toward the clamped workpiece (241), and the mechanical arm of the contact picking robot (22) is also provided with a contact claw (222) for clamping the vertical contact piece coated with solder paste to the automatic welding unit (5).

4. The frame contact silver point fully automatic welding machine according to claim 3, characterized in that: The clamping workpiece (241) comprises a clamping block arranged along the radial direction of the rotating table, and the clamping block is provided with a groove for inserting the contact piece in a direction away from the center of the rotating table.

5. The frame contact silver point fully automatic welding machine according to claim 1, characterized in that: The silver contact vibrating feeding unit (3) comprises a silver contact vibrating plate (31) for providing silver contacts with an arc-shaped convex surface facing upwards for the silver contact positioning and suction cup picking unit (4).

6. The frame contact silver point fully automatic welding machine according to claim 1, characterized in that: The silver point positioning and suction cup picking unit (4) comprises a silver point picking robot (42) and a silver point loading and positioning tool (43); the silver contact vibration loading unit (3) is connected to the silver point loading and positioning tool (43); the silver point picking robot (42) is provided with a silver point vacuum suction cup (41) for sucking the silver point at the silver point loading and positioning tool (43) and placing it on the automatic welding unit (5).

7. The frame contact silver point fully automatic welding machine according to claim 1, characterized in that: The upper electrode fixture further comprises an upper frame and a connecting block, the connecting block is slidably connected to the upper frame, the connecting block is connected to a vertically arranged driving cylinder, the driving cylinder is used to drive the connecting block downward; the plum blossom electrode (52) is detachably connected to the connecting block via a pin; The automatic welding unit (5) further comprises a lower electrode tooling for vertically placing the contact piece, the lower electrode tooling comprising a lower frame and a lower electrode (53), and the lower electrode (53) is detachably connected to the lower frame via a pin.

8. The frame contact silver point fully automatic welding machine according to claim 6, characterized in that: The automatic welding unit (5) comprises a second CCD visual inspection device (51) for identifying and judging whether a product is qualified or not, a qualified finished product unloading guide rail (55) and a unqualified product unloading guide rail (56); The silver point picking robot (42) is also provided with a finished product clamping claw (44) for clamping qualified products determined by the second CCD visual inspection device (51) to the qualified finished product unloading guide rail (55), and clamping unqualified products determined by the second CCD visual inspection device (51) to the unqualified product unloading guide rail (56).

9. The frame contact silver point fully automatic welding machine according to claim 7, characterized in that: The lower electrode (53) is connected to an internal water circulation device for improving welding stability; the internal water circulation device includes a water circulation pipe (9) and an equipment water pressure control component (10); the equipment water pressure control component (10) is connected to the water circulation pipe (9) and is used to control the water pressure in the water circulation pipe (9); the water circulation pipe (9) is connected to the water channel hole of the lower electrode (53).

Images