A precision resistance welding machine

Abstract

The application discloses a kind of precision resistance welding machines, comprising: head material feeding mechanism, handle material feeding mechanism, first manipulator, second manipulator, welding mechanism and anti-bending detection mechanism, head material feeding mechanism is used to transport head material, handle material feeding mechanism is used to transport handle material, first manipulator is used to pick up the head material of head material feeding mechanism and the head material is transported to the welding position of welding mechanism, second manipulator is used to pick up the handle material of handle material feeding mechanism and the handle material is transported to the welding position of welding mechanism, welding mechanism is used to the head material of first manipulator with the handle material of second manipulator welding forms welded part, second manipulator is also used to transport welded part to anti-bending detection mechanism, anti-bending detection mechanism is used to detect the anti-bending performance of handle material and knife material welding position of welded part, the automatic welding of the head material and handle material of PCB micro drill can be realized, the production cycle of PCB micro drill is shortened, and production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of PCB micro drill processing, and particularly to a precision resistance welding machine. BACKGROUND

[0002] Currently, the commonly used material of PCB micro drill is hard alloy, but because the raw material cost of hard alloy is relatively high, only the micro drill bit material adopts hard alloy (WC-Co hard alloy), and the micro drill handle material adopts steel, so as to reduce the overall production cost.

[0003] Currently, in the welding production process of the micro drill bit material and the micro drill handle material, the artificial first clamps the micro drill bit material by using a micro drill bit material feeding clamping mechanism, then clamps the micro drill handle material by using a micro drill handle material feeding clamping mechanism, and then abuts the micro drill bit material and the micro drill handle material one by one through manual operation to complete the final welding, but this manual operation has a long production cycle, and thus the production efficiency is low. SUMMARY

[0004] The present application aims to overcome the above technical deficiencies and provide a precision resistance welding machine to solve the technical problems in the background art.

[0005] To achieve the above technical purposes, the technical scheme of the present application provides a precision resistance welding machine, which comprises:

[0006] A head material feeding mechanism, which is used for conveying head material;

[0007] A handle material feeding mechanism, which is used for conveying handle material;

[0008] A first mechanical hand, which is used for clamping the head material conveyed by the head material feeding mechanism and conveying the head material to a welding position of a welding mechanism;

[0009] A second mechanical hand, which is used for clamping the handle material conveyed by the handle material feeding mechanism and conveying the handle material to the welding position of the welding mechanism;

[0010] The welding mechanism, which is used for welding the head material conveyed by the first mechanical hand and the handle material conveyed by the second mechanical hand to form a welded piece;

[0011] The second mechanical hand is further used for conveying the welded piece to a bending resistance detection mechanism;

[0012] The bending resistance detection mechanism, which is used for detecting the bending resistance performance of the head material and the handle material welding position of the welded piece.

[0013] Further, the head material feeding mechanism comprises a first vibrating disc, the first vibrating disc is connected with a first transmission pipe, and the first transmission pipe is connected with a first driving device used for driving the first transmission pipe to move up and down.

[0014] Further, the handle material feeding mechanism comprises a second vibrating disc, the second vibrating disc is connected with a second conveying pipe, the second conveying pipe is connected with a second driving device for driving the second conveying pipe to move up and down.

[0015] Further, the first mechanical arm comprises a first clamping device for clamping or releasing the head material, the first clamping device is connected with a third driving device for driving the first clamping device to move up and down, and the third driving device is connected with a fourth driving device for driving the first clamping device to move left and right.

[0016] Further, the first mechanical arm further comprises a pressing device for pressing the head material, and the pressing device is connected with the fourth driving device for driving the pressing device to move left and right.

[0017] Further, the second mechanical arm comprises a rotating disc, the rotating disc is connected with a fifth driving device for driving the rotating disc to rotate, the side wall of the rotating disc is uniformly provided with a plurality of sliding rails, a sliding block capable of sliding up and down along the sliding rail is arranged on the sliding rail, the sliding block and the sliding rail are connected through an elastic element, and the sliding block is provided with a second clamping device for clamping or releasing the handle material.

[0018] Further, the second mechanical arm further comprises a first lifting device and a second lifting device for lifting the sliding block.

[0019] Further, the welding mechanism comprises a first chuck and a first welding head arranged opposite to each other, and a second chuck and a second welding head arranged opposite to each other below the first chuck and the first welding head, the first welding head is connected with a sixth driving device for driving the first welding head to move left and right, and the second welding head is connected with a seventh driving device for driving the second welding head to move left and right.

[0020] Further, the welding mechanism further comprises an upper adjusting block, the first chuck and the first welding head are arranged on the upper adjusting block, the upper adjusting block is slidably provided with a middle adjusting block, the upper adjusting block and the middle adjusting block are connected through a first adjusting element for adjusting the left-right position of the upper adjusting block, the middle adjusting block is slidably arranged on a lower adjusting block, and the middle adjusting block and the lower adjusting block are connected through a second adjusting element for adjusting the front-rear position of the middle adjusting block.

[0021] Further, the anti-bending detection mechanism comprises a fixing sleeve for fixing the welding piece, the fixing sleeve is connected with an eighth driving device for driving the fixing sleeve to rotate, the anti-bending detection mechanism further comprises a push rod, the push rod is connected with a ninth driving device for driving the push rod to move left and right, and the anti-bending detection mechanism further comprises a pressing block, the pressing block is connected with a tenth driving device for driving the pressing block to move forward and backward.

[0022] The beneficial effects of the present application include: the present application provides a precision resistance welding machine, a head material feeding mechanism for conveying head material, a handle material feeding mechanism for conveying handle material, a first mechanical hand for clamping the head material conveyed by the head material feeding mechanism and conveying the head material to the welding position of the welding mechanism, a second mechanical hand for clamping the handle material conveyed by the handle material feeding mechanism and conveying the handle material to the welding position of the welding mechanism, and a welding mechanism for welding the head material conveyed by the first mechanical hand and the handle material conveyed by the second mechanical hand to form a welded part. The second mechanical hand is also used to convey the welded part to the anti-bending detection mechanism, and the anti-bending detection mechanism is used to detect the anti-bending performance of the handle material and the blade material welding position of the welded part. The automatic welding of the head material and the handle material of the PCB micro drill can be realized, the production cycle of the PCB micro drill is shortened, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a schematic structural diagram of the precision resistance welding machine of the embodiment of the present application;

[0024] Figure 2 is another state diagram of the precision resistance welding machine of the embodiment of the present application;

[0025] Figure 3 is still another state diagram of the precision resistance welding machine of the embodiment of the present application;

[0026] Figure 4 is Figure 1 the enlarged view of A of

[0027] Figure 5 is the enlarged view of B of Figure 1

[0028] Figure 6 is the enlarged view of C of Figure 2

[0029] Figure 7 is the enlarged view of D of Figure 2

[0030] Figure 8 is the enlarged view of E of Figure 3

[0031] Figure 9 is the enlarged view of F of Figure 3

[0032] ​​​​​In the diagram: 1. Head material feeding mechanism; 11. First vibratory feeder; 12. First transmission pipe; 13. First drive device; 2. Handle material feeding mechanism; 21. Second vibratory feeder; 22. Second transmission pipe; 23. Second drive device; 3. First robotic arm; 31. First clamping device; 32. Third drive device; 33. Fourth drive device; 34. Pressing device; 4. Second robotic arm; 41. Turntable; 42. Fifth drive device; 43. Slide rail; 44. Slider; 45. Elastic element; 46. Second clamping device; 47. First lifting device; 48. Second lifting device; 5. Welding mechanism; 51. First chuck; 511. Mounting block; 5111. Limiting device. 512. Clamping block; 5121. V-groove; 513. Fixing bolt; 514. Adjusting bolt; 52. First welding head; 53. Second clamp; 54. Second welding head; 55. Sixth drive device; 56. Seventh drive device; 57. Upper adjusting block; 58. Middle adjusting block; 59. First adjusting component; 510. Lower adjusting block; 511. Second adjusting component; 6. Bending resistance testing mechanism; 61. Fixing sleeve; 62. Eighth drive device; 63. Push rod; 64. Ninth drive device; 65. Pressing block; 66. Tenth drive device; 67. Waste collection box; 68. Receiving block; 69. Push block; 610. Eleventh drive device; 611. Finished product collection box. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0034] This invention provides a precision resistance welding machine, such as... Figures 1-9 As shown, the system includes: a headstock feeding mechanism 1, a shank feeding mechanism 2, a first robotic arm 3, a second robotic arm 4, a welding mechanism 5, and a bending resistance testing mechanism 6. The headstock feeding mechanism 1 is used to feed the headstock, the shank feeding mechanism 2 is used to feed the shank, the first robotic arm 3 is used to pick up the headstock fed by the headstock feeding mechanism 2 and transport it to the welding part of the welding mechanism 5, the second robotic arm 4 is used to pick up the shank fed by the shank feeding mechanism 2 and transport it to the welding part of the welding mechanism 5, the welding mechanism 5 is used to weld the headstock fed by the first robotic arm 3 and the shank fed by the second robotic arm 4 to form a welded part, and the second robotic arm 4 is also used to transport the welded part to the bending resistance testing mechanism 6. The bending resistance testing mechanism 6 is used to test the bending resistance of the welded part between the headstock and the shank, which can realize the automated welding of the headstock and shank of PCB micro-drills, shorten the production cycle of PCB micro-drills, and improve production efficiency.

[0035] In the embodiment, the head material feeding mechanism 1 comprises a first vibrating disc 11 connected with a first conveying pipe 12, the first conveying pipe 12 is connected with a first driving device 13 for driving the first conveying pipe 12 to move up and down, the first driving device 13 is one of a pneumatic cylinder or a hydraulic cylinder; the handle material feeding mechanism 2 comprises a second vibrating disc 21 connected with a second conveying pipe 22, the second conveying pipe 22 is connected with a second driving device 23 for driving the second conveying pipe 22 to move up and down.

[0036] In the embodiment, the first manipulator 3 comprises a first clamping device 31 for clamping or releasing the head material, the first clamping device 31 is one of a finger pneumatic cylinder or a finger motor, the first clamping device 31 is connected with a third driving device 32 for driving the first clamping device 31 to move up and down, the third driving device 32 is one of a pneumatic cylinder or a hydraulic cylinder, the third driving device 32 is connected with a fourth driving device 33 for driving the first clamping device 31 to move left and right, the fourth driving device 33 is one of a pneumatic cylinder or a hydraulic cylinder, when the head material is output through the first conveying pipe 12, the head material can be clamped by the first clamping device 31, when the head material is clamped, the first clamping device 31 is driven by the third driving device 32 to move up and down, the head material is driven by the fourth driving device 33 to move left and right, and the head material is conveyed to the welding mechanism 5, the first manipulator 3 further comprises a pressing device 34 for pressing the head material, the pressing device 34 is one of a pneumatic cylinder or a hydraulic cylinder, the pressing device 34 is connected with the fourth driving device 33 for driving the pressing device 34 to move left and right, and the fourth driving device 33 further comprises a slide rail and a slide block, the third driving device 32 and the pressing device 34 are installed on the slide block, the slide block is slidably arranged on the slide rail, so that the third driving device 32 and the pressing device 34 can move stably, and limiters are arranged at both ends of the slide rail to limit the left and right movement of the slide block.

[0037] In the embodiment, the second manipulator 4 comprises a rotating disc 41 connected with a fifth driving device 42 for driving the rotating disc 41 to rotate, the fifth driving device 42 is one of a motor or a rotating cylinder, the rotating disc 41 is uniformly provided with a plurality of slide rails 43 on the side wall, a sliding block 44 capable of sliding up and down along the slide rails 43 is arranged on the slide rails 43, the sliding block 44 and the slide rails 43 are connected through an elastic element 45, the elastic element 45 is a spring, the sliding block 44 is provided with a second clamping device 46 for clamping or loosening the handle, the second clamping device 46 is one of a finger cylinder or a finger motor, when the handle is output through the second transmission pipe 22, the handle can be clamped through the second clamping device 46, when the handle is clamped, the second clamping device 46 can be driven to rotate through the fifth driving device 42, so as to transport the handle to the welding mechanism 5, the second manipulator 4 further comprises a first lifting device 47 for lifting the sliding block 44, the first lifting device 47 is one of a cylinder or a hydraulic cylinder, and the second manipulator 4 further comprises a second lifting device 48 for lifting the sliding block 44, the second lifting device 48 is one of a cylinder or a hydraulic cylinder.

[0038] In the embodiment, the welding mechanism 5 comprises a first chuck 51 and a first welding head 52 arranged oppositely, the pressing device 34 is arranged above the first chuck 51 and the first welding head 52, a second chuck 53 and a second welding head 54 are arranged oppositely below the first chuck 51 and the first welding head 52, the first lifting device 47 is arranged below the second chuck 53 and the second welding head 54, the first welding head 52 is connected with a sixth driving device 55 for driving the first welding head 52 to move left and right, the sixth driving device 55 is one of a cylinder or a hydraulic cylinder, the second welding head 52 is connected with a seventh driving device 56 for driving the second welding head 52 to move left and right, the seventh driving device 56 is one of a cylinder or a hydraulic cylinder, when the handle is transported to the welding mechanism 5, the sliding block 44 can be lifted through the first lifting device 47, so that the handle is located between the second chuck 53 and the second welding head 54, at the same time, the second welding head 52 is driven to the second chuck 53 through the seventh driving device 56, so as to clamp the handle, when the handle is transported to the welding mechanism 5, the first welding head 52 can be driven to move to the first chuck 51 through the sixth driving device 55, so as to clamp the handle, at the same time, the handle can be pressed on the handle through the pressing device 34, so as to weld the handle on the handle.

[0039] It should be noted that the first clamp 51 comprises a mounting block 511, a limiting block 5111 is arranged on the right side of the mounting block 511, a clamping block 512 is arranged on the front side of the limiting block 5111, a V-shaped groove 5121 is arranged on the front side of the clamping block 512, the clamping block 512 is connected with the mounting block 511 through a fixing bolt 513 in the middle part, and an adjusting bolt 514 is threadedly connected to the upper end and the lower end of the clamping block 512 and abuts against the limiting block 5111, the second clamp 53 is the same in structure as the first clamp 51, when welding, the head material can be fixed in the V-shaped groove 5121 of the first clamp 51, and the handle material can be fixed in the V-shaped groove 5121 of the second clamp 53, the position of the V-shaped groove 5121 on the first clamp 51 can be adjusted through the adjusting bolt 514 on the first clamp 51, the position of the V-shaped groove 5121 on the second clamp 51 can be adjusted through the adjusting bolt 514 on the second clamp 53, so that the concentricity of the V-shaped grooves 5121 on the first clamp 51 and the second clamp 53 can be adjusted, that is, the head material and the handle material are coaxial, the yield of welding is improved, meanwhile, the mounting block 511 of the first clamp 51 and the mounting block 511 of the second clamp 53 are both provided with a circulating water cooling channel, so that the welded part after welding can be cooled, meanwhile, the first clamp 51 and the second clamp 53 are separated from the welding mechanism 5 through an insulating layer, so that safety accidents are avoided.

[0040] In the embodiment, the welding mechanism 5 further comprises an upper adjusting block 57, the first clamp 51 and the first welding head 52 are mounted on the upper adjusting block 57, the upper adjusting block 57 is slidably provided with an intermediate adjusting block 58, the upper adjusting block 57 and the intermediate adjusting block 58 are connected through a first adjusting piece 59 for adjusting the left-right position of the upper adjusting block 57, the first adjusting piece 59 is a bolt, the intermediate adjusting block 58 is slidably provided on a lower adjusting block 510, the intermediate adjusting block 58 and the lower adjusting block 510 are connected through a second adjusting piece 511 for adjusting the front-rear position of the intermediate adjusting block 58, the left-right position of the first clamp 51 and the first welding head 52 can be adjusted through the first adjusting piece 59, and the front-rear position of the first clamp 51 and the first welding head 52 can be adjusted through the second adjusting piece 511, so that the center axis of the head material and the center axis of the handle material are on a straight line during welding, the yield is improved, and meanwhile, when the adjustment is completed, the upper adjusting block 57 can be pressed by a jacking device, the jacking device is one of a pneumatic cylinder and a hydraulic cylinder, so that the first clamp 51 and the first welding head 52 are prevented from loosening during welding.

[0041] It should be noted that the upper adjusting block 57 is slidably provided on the intermediate adjusting block 58 through dovetail grooves and dovetail blocks, and the intermediate adjusting block 58 is also slidably provided on the lower adjusting block 510 through dovetail grooves and dovetail blocks.

[0042] In the embodiment, the anti-bending detection mechanism 6 comprises a fixed sleeve 61 fixedly connected with the welding piece, the second lifting device 48 is arranged below the fixed sleeve 61, the fixed sleeve 61 is connected with an eighth driving device 62 for driving the fixed sleeve 61 to rotate, the eighth driving device 62 is one of a motor or a rotary cylinder, the anti-bending detection mechanism 6 further comprises a push rod 63 connected with a ninth driving device 64 for driving the push rod 63 to move left and right, the ninth driving device 64 is one of a pneumatic cylinder or a hydraulic cylinder, the anti-bending detection mechanism 6 further comprises a pressing block 65 connected with a tenth driving device 66 for driving the pressing block 65 to move forward and backward, the tenth driving device 66 is one of a pneumatic cylinder or a hydraulic cylinder, after the head piece is welded on the handle piece, the head piece is released from between the first chuck 51 and the first welding head 52, the handle piece is released from between the second chuck 53 and the second welding head 54, and the first lifting device 47 releases the sliding block 44, under the elastic force of the elastic member 45, the sliding block 44 descends to the initial position, after the sliding block 44 descends to the initial position, the welding piece is rotated by the fifth driving device 42 and is conveyed to below the fixed sleeve 61, then the sliding block 44 is lifted by the second lifting device 48, so that the welding piece is inserted into the fixed sleeve 61, after the welding piece is fixed, the fixed sleeve 61 is rotated by the eighth driving device 62, so that the fixed sleeve 61 moves to the pressing block 65, then the push rod 63 is driven by the ninth driving device 64 to move, so as to push the welding piece fixed in the fixed sleeve 61 to adjust the welding piece to a proper position, after the adjustment is completed, the pressing block 65 is driven by the tenth driving device 66 to move towards the head piece, so as to press the head piece, and the anti-bending performance of the welding joint between the head piece and the handle piece is detected, when the welding joint between the head piece and the handle piece is broken, it indicates that the welding piece is unqualified, at the same time, the broken head piece falls into the waste collecting box 67, at the same time, the push rod 63 is driven by the ninth driving device 64 to move, so as to push the handle piece in the fixed sleeve 61 out and collect the handle piece in the waste collecting box 67, the anti-bending detection mechanism 6 further comprises a receiving block 68, a strip-shaped groove is arranged on the top of the receiving block 68, when the welding joint between the head piece and the handle piece is not broken, it indicates that the welding piece is qualified, the welding piece in the fixed sleeve 61 is pushed by the push rod 63 into the strip-shaped groove of the receiving block 68, a push block 69 is arranged on the top of the receiving block 68, the push block 69 is connected with an eleventh driving device 610 for driving the push block 69 to move forward and backward, the eleventh driving device 610 is one of a pneumatic cylinder or a hydraulic cylinder, the push block 69 is driven by the eleventh driving device 610 to move, so as to push the welding piece on the receiving block 68 into the finished product collecting box 611.

[0043] It should be noted that before the anti-bending performance of the head piece and the handle piece is detected, the pressure parameter of the tenth driving device 66 needs to be set, so that the anti-bending performance between the head piece and the handle piece of the welding piece can be detected under a certain pressure.

[0044] The precise resistance welding machine of the embodiment of the present application, the head material feeding mechanism 1 is used for conveying head material, the handle material feeding mechanism 2 is used for conveying handle material, the first mechanical hand 3 is used for clamping the head material conveyed by the head material feeding mechanism 1 and conveying the head material to the welding position of the welding mechanism 5, the second mechanical hand 4 is used for clamping the handle material conveyed by the handle material feeding mechanism 2 and conveying the handle material to the welding position of the welding mechanism 5, the welding mechanism 5 is used for welding the head material conveyed by the first mechanical hand 3 and the handle material conveyed by the second mechanical hand 4 to form a welded piece, and the second mechanical hand 4 is also used for conveying the welded piece to the anti-bending detection mechanism 6, the anti-bending detection mechanism 6 is used for detecting the anti-bending performance of the head material and the handle material welding position of the welded piece, the automatic welding of the head material and the handle material of the PCB micro drill can be realized, the production cycle of the PCB micro drill is shortened, and the production efficiency is improved.

[0045] The specific embodiments of the present application described above do not constitute a limitation on the protection scope of the present application. Any various other corresponding changes and modifications made according to the technical concept of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A precision resistance welding machine, characterized in that, include: A head material feeding mechanism, which is used to convey head materials; A handle feeding mechanism, which is used to convey handles; The first robotic arm is used to grip the head material conveyed by the head material feeding mechanism and convey the head material to the welding part of the welding mechanism; The second robotic arm is used to grip the handle material conveyed by the handle material feeding mechanism and convey the handle material to the welding part of the welding mechanism; A welding mechanism is used to weld the head material conveyed by the first robot arm and the handle material conveyed by the second robot arm to form a welded part; The second robotic arm is also used to transport the welded parts to the bending strength testing mechanism; A flexural strength testing mechanism is used to test the flexural strength of the welded joint between the head and shank of a welded component. The first robotic arm includes a first clamping device for gripping or releasing the head material, the first clamping device being connected to a third driving device for driving the first clamping device to move up and down, and the third driving device being connected to a fourth driving device for driving the first clamping device to move left and right. The second robotic arm includes a turntable, which is connected to a fifth driving device for driving the turntable to rotate. Several slide rails are evenly installed on the side wall of the turntable. A slider that can slide up and down along the slide rail is slidably provided on the slide rail. The slider is connected to the slide rail by an elastic element. A second clamping device for clamping or releasing the handle is installed on the slider.

2. The precision resistance welding machine according to claim 1, characterized in that, The head material feeding mechanism includes a first vibratory plate, which is connected to a first transmission pipe. The first transmission pipe is connected to a first driving device for driving the first transmission pipe to move up and down.

3. The precision resistance welding machine according to claim 1, characterized in that, The material feeding mechanism includes a second vibratory plate, which is connected to a second transmission pipe. The second transmission pipe is connected to a second driving device for driving the second transmission pipe to move up and down.

4. The precision resistance welding machine according to claim 1, characterized in that, The first robotic arm also includes a pressing device for pressing down the head material, and the pressing device is connected to a fourth driving device for driving the pressing device to move left and right.

5. The precision resistance welding machine according to claim 1, characterized in that, The second robotic arm also includes a first lifting device and a second lifting device for lifting the slider.

6. The precision resistance welding machine according to claim 1, characterized in that, The welding mechanism includes a first clamp and a first welding head arranged opposite each other on the left and right. A second clamp and a second welding head are arranged opposite each other on the left and right below the first clamp and the second welding head. The first welding head is connected to a sixth driving device for driving the first welding head to move left and right. The second welding head is connected to a seventh driving device for driving the second welding head to move left and right.

7. The precision resistance welding machine according to claim 1, characterized in that, The welding mechanism further includes an upper adjusting block, on which the first chuck and the first welding head are mounted. The upper adjusting block is slidably disposed on an intermediate adjusting block. The upper adjusting block and the intermediate adjusting block are connected by a first adjusting member for adjusting the left and right position of the upper adjusting block. The intermediate adjusting block is slidably disposed on a lower adjusting block. The intermediate adjusting block and the lower adjusting block are connected by a second adjusting member for adjusting the front and rear position of the intermediate adjusting block.

8. The precision resistance welding machine according to claim 1, characterized in that, The bending resistance testing mechanism includes a fixing sleeve for fixing the welded parts, the fixing sleeve being connected to an eighth driving device for driving the fixing sleeve to rotate, the bending resistance testing mechanism also includes a push rod, the push rod being connected to a ninth driving device for driving the push rod to move left and right, the bending resistance testing mechanism also includes a pressure block, the pressure block being connected to a tenth driving device for driving the pressure block to move back and forth.

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