An automatic multifunctional BGA rework station

Abstract

The invention discloses an automatic multifunctional BGA rework station, belonging to the field of BGA equipment, comprising a machine head, wherein the machine head is provided with an exhaust gas extraction system, a three-color indicator light, an emergency stop switch, a grating protection system, a caster foot cup and an oil mist separator in sequence from outside to inside and from top to bottom, an industrial computer is provided in a lower cover of the machine head, a display bracket is provided in the right front of the machine head, two displays are provided on the display bracket, a keyboard and mouse placement plate is provided on one side of the display, and a keyboard and mouse are placed on the keyboard and mouse placement plate, a reference bottom plate is provided under the machine head, and a preheating lifting system, a preheating box, a first cooling system, an optical alignment system, a moving temperature zone, an auxiliary axis, a moving temperature zone X axis, a moving temperature zone Y axis, a lower hot air system, a stage mechanism and a feeding system are provided in sequence from bottom to top on the reference bottom plate; the equipment integrates multiple functions in one, has an ultra-large preheating temperature zone, and has automatic dismantling and welding functions, can complete the rework of BGA in an integrated manner, and reduces the workload.

Description

Technical Field

[0001] The invention belongs to the technical field of BGA equipment, and in particular relates to an automatic multifunctional BGA rework station. Background Art

[0002] With the rapid development of electronic technology in recent years, the speed of electronic product replacement has accelerated, and the popularity of products such as computers and mobile phones has made people's requirements for electronic products higher and higher. The characteristic size of BGA chips has become larger and larger, and the complexity needs to be increased, so that the semiconductor process technology capabilities continue to improve. The functions of semiconductor chips are becoming increasingly powerful, resulting in the gradual increase in the transmission volume of semiconductor chip signals. The increase in transmission volume will increase the burden of BGA, slow down the operation speed of BGA, and increase the cost of internal circuits. In order to solve this phenomenon, the size of BGA is changed to make it more functional and more efficient. The large-scale and high-density assembly of electronic products and the high frequency and high efficiency have higher and higher requirements for the quality of installation and repair, and the demand is becoming more and more intense. In the rapid development of BGA, the function of BGA has become more powerful. Among the BGA equipment in the prior art, single-function BGA equipment is generally used, and the small preheating temperature zone and single function cannot meet the existing needs. Summary of the invention

[0003] The object of the present invention is to provide an automatic multifunctional BGA rework station to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] An automatic multifunctional BGA rework station comprises a machine head, wherein the machine head is provided with an exhaust gas extraction system, a three-color indicator light, an emergency stop switch, a grating protection system, a caster foot cup and an oil mist separator in sequence from outside to inside and from top to bottom; an industrial computer is provided in the lower cover of the machine head; a display bracket is provided in the right front of the machine head; two displays are provided on the display bracket; a keyboard and mouse placement plate is provided on one side of the display; a keyboard and mouse are placed on the keyboard and mouse placement plate; a reference bottom plate is provided under the machine head; a preheating lifting system, a preheating box, a first cooling system, an optical alignment system, a moving temperature zone, an auxiliary axis, a moving temperature zone X axis, a moving temperature zone Y axis, a linear guide rail, a linear guide rail, a lower hot air system, A drawer-type stage mechanism and a feeding system, wherein pillars are fixed on the reference bottom plate, and Y-axis systems are respectively arranged on the pillars along their axial directions, wherein the Y-axis system comprises a Y-axis, wherein a Y-axis motor and a Y-axis guide screw are arranged in the Y-axis, and an X-axis system is arranged on the Y-axis, wherein the X-axis system comprises an X-axis, wherein an X-axis motor is arranged in the X-axis, and an X-axis guide is arranged along the X-axis direction, and an X-axis guide screw is arranged on the X-axis guide, and a head mechanism is fixed on the X-axis guide, and a heat dissipation hood and a head cover are arranged on the head mechanism, a preheating system is arranged in the preheating box, and the outer side walls of the preheating box are provided with heat insulation boards, and a second cooling system is arranged on the right side of the preheating box, and a feeding mechanism is arranged in the feeding system.

[0006] This equipment integrates multiple functions in one. It has a large preheating temperature zone to repair existing BGA chips. It has removal and welding and automatic functions. It can complete the BGA repair in an integrated manner. The complete intelligent system reduces the workload of employees.

[0007] As a preferred embodiment, the head mechanism includes an upper heating mechanism and a mounting mechanism, the upper heating mechanism is provided with a head plate, a screw assembly and a Z-axis motor plate are fixed on the head plate, a Z-axis motor is installed below the Z-axis motor plate, a synchronous wheel is connected to the top of the Z-axis motor, a synchronous belt is provided between the two synchronous wheels, a ball screw is connected to the synchronous wheel, a transmission seat is provided in the ball screw, the transmission seat has upper and lower limit pads below it, a linear guide rail is provided under the transmission seat, a connecting plate is provided on the right side of the transmission seat, a sensor seat is fixed in the connecting plate, a pad is provided under the sensor seat, an air guide cover is provided under the pad, an air guide plate is fixed under the air guide cover, an air guide vane is fixed under the air guide vane, a ceramic connecting sleeve is provided under the air guide vane, a heater is installed in the ceramic connecting sleeve, and the heater An upper heat insulation ring is provided at the bottom, an aluminum head is provided at the bottom of the ceramic connecting sleeve, a wind wheel is installed inside the aluminum head, the mounting mechanism includes a pad, a linear bearing seat and a rotating shaft motor are installed on the pad, a round plate is provided above the linear bearing seat, a pipe joint is installed on the round plate, a rotating shaft is rotatably connected to the round plate, the output shaft of the rotating shaft motor is connected to one end of the rotating shaft, a rotating shaft clamp is provided on the rotating shaft, a round plate is provided at the other end of the rotating shaft, an air pipe joint is provided on the top of the round plate, the output shaft of the rotating shaft motor is connected to a cam, a guide rail support plate is provided on one side of the cam, the linear guide is fixed on the guide rail support plate, the linear guide is connected to a transmission block, two transmission wheels are provided on the linear guide, a fixed motor is installed on the right side of the transmission block, and the fixed motor is connected to the transmission wheel.

[0008] By adopting the above scheme, the automatic mounting function is realized by utilizing the mounting mechanism, and at the same time, the upper heating mechanism can perform mobile heating on the BGA chip that needs to be repaired, and the heating effect is good.

[0009] As a preferred embodiment, the optical alignment system includes a machine head, a machine head lower slider is provided in the machine head, a support block seat and a CCDX axis tank chain bracket are fixed in the machine head lower slider, an optical X-axis motor is provided at the support block seat, the linear guide is connected to the camera slide, an optical Y-axis motor and a drag chain are fixed in the camera slide, a slider fixing seat is provided on the linear guide, a camera clamp is fixed on the slider fixing seat, a camera support plate is fixed on the camera clamp, a camera head is installed on the camera support plate, a lens cover is provided on the camera, a ring light cover is provided on the lens cover, an optical light source is provided under the ring light cover, a camera sealing plate is provided at the lens of the camera, a built-in prism and an industrial camera are provided in the camera, and a CCD baffle is provided behind the built-in prism and the industrial camera.

[0010] The above scheme adopts the optical automatic alignment system, so that the X, Y, Z axis and ф angle adjustment are all servo-driven, and accurate alignment, intelligent motion system, automatic placement, automatic welding, etc. are achieved. The work quality is guaranteed to cope with high-end precision electronic products.

[0011] As a preferred embodiment, the drawer-type loading platform mechanism includes a slide end piece fixed on a reference base plate, an upper transverse fixing strip is provided on the slide end piece, the linear guide is fixed below the upper transverse fixing strip, a workbench support plate is provided under the linear guide, a workbench front connecting plate is provided in front of the linear guide, a handle is fixed on the front of the workbench front connecting plate, a workbench rear connecting plate is fixed behind the linear guide, a clamping claw support strip is provided on the linear guide, a PCB buckle is provided on the clamping claw support strip, and a PCB support frame is provided in the middle of the linear guide.

[0012] By adopting the above scheme, the original fixed mechanism is improved into a drawer-type mechanism, which can be locked arbitrarily within the effective stroke, making it convenient for personnel to operate and avoiding burns.

[0013] As a preferred embodiment, the movable temperature zone includes a preheating box bottom plate, and the top of the preheating box bottom plate is respectively fixed with a preheating box rear plate, a preheating box front plate and two preheating box side plates, the heater is installed in the preheating box, and a mesh cover is provided above the heater, and the mesh cover is fixed on the preheating box rear plate and the preheating box front plate.

[0014] By adopting the above scheme and designing a dual control of the heater temperature, the heating process of the heater can be effectively detected and the heating can be stopped after heating failure, thereby preventing the heating from getting out of control.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention adopts an optical automatic alignment system through industrial computer control and an optical alignment method, so that the X, Y, Z axis and ф angle adjustment are all servo-driven, and accurate alignment, intelligent motion system, automatic mounting, and automatic welding are achieved, ensuring the work quality and coping with high-end precision electronic products;

[0017] 2. A grating protection system is installed at the front door of the working area, without any potential safety hazards;

[0018] 3. Automatically generate temperature curve analysis report during equipment operation to trace the repair history;

[0019] 4. The drawer-type mechanism is adopted, which can be pulled out of the equipment to place the PCB board, making it convenient for personnel to operate;

[0020] 5. The IR preheating zone adopts a single control function, and each infrared heater can independently control the heating speed and power output. Improve the temperature control function and enhance the overall temperature uniformity;

[0021] 6. The IR preheating zone adopts dual temperature zone control function. Each infrared heater has two temperature controls to prevent temperature out of control. There is a temperature out of control prompt;

[0022] 7. The exhaust gas extraction system adopts a low-noise mechanism to effectively reduce the impact of noise;

[0023] 8. The equipment has dual interfaces for air and nitrogen, and air or nitrogen can be selected according to different processes.

[0024] This equipment integrates multiple functions in one. It has a large preheating temperature zone to repair existing BGA chips. It has removal and welding and automatic functions. It can complete the BGA repair in an integrated manner. The complete intelligent system reduces the workload of employees. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The overall structure of the present invention Figure 1 ;

[0026] Figure 2 The structure of the present invention Figure 2 ;

[0027] Figure 3 The structure of the present invention Figure 3 ;

[0028] Figure 4 It is a schematic diagram of the machine head mechanism of the present invention;

[0029] Figure 5 It is a schematic diagram of the heating mechanism of the present invention;

[0030] Figure 6 It is a schematic diagram of the alignment of the optical mechanism of the present invention;

[0031] Figure 7 It is a schematic diagram of the drawer-type loading platform mechanism of the present invention;

[0032] Figure 8 It is a schematic diagram of mobile temperature zone preheating of the present invention.

[0033] In the figure: 01, head; 02, exhaust gas extraction system; 03, grating protection system; 04, emergency stop switch; 05, barometer; 06, flow meter; 07, caster foot cup; 08, door handle; 09, three-color indicator light; 10, oil mist separator; 11, air switch; 12, industrial computer; 13, keyboard and mouse placement board; 14, display; 15, display bracket; 16, heat dissipation hood; 17, head cover; 18, Y-axis system; 19, pillar; 20, second cooling system; 21, reference bottom plate; 22, feeding system; 23, optical alignment system; 24, heat insulation board; 25, mobile temperature zone; 26, preheating box; 27, preheating lifting system; 28, lower hot air system; 29, mobile temperature zone X axis; 30, first Cooling system; 31. Auxiliary axis; 32. X-axis system; 33. PCB support frame; 34. Pressure digital meter; 35. Air pressure digital meter sheet metal; 36. Synchronous wheel; 37. Z-axis motor plate; 38. Z-axis motor; 39. Screw assembly; 40. Servo tank chain bracket; 41. Connecting plate; 42. Front and rear adjustment plate; 43. Head plate; 44. Ball screw; 45. Linear guide 1; 46. Screw assembly; 47. Upper and lower limit pads; 48. Infrared induction heat insulation sheet metal; 49. Transmission seat; 50. Limiting piece; 51. Screw fixing seat; 52. Air pipe joint; 53. Round plate 2; 54. Sensor seat; 55. Shaft clamp; 56. Pipe joint; 57. Round plate 1; 58. Linear bearing seat; 59. Pad; 60. Guide Wind cover; 61, air guide; 62, ceramic connecting sleeve; 63, 90 aluminum head; 64, suction rod; 65, shaft motor; 66, cam; 67, guide rail support plate; 68, linear guide 12; 69, R-axis motor; 70, optical Y-axis motor; 71, head lower slider; 72, camera slide; 73, camera support plate; 74, feeding tray; 75, lens cover; 76, optical light source; 77, camera sealing plate; 78, built-in prism and industrial camera; 79, camera clamp; 80, slider holder; 81, cylinder; 82, linear guide 1; 83, CCD baffle; 84, transmission upper shaft; 85, support block seat; 86, tank chain bracket; 87, optical X-axis motor; 88, cooling fan; 89, slide end piece; 9 0, upper horizontal fixing strip; 91, clamping jaw seat 2; 92, X linear guide 1; 93, front connecting plate of workbench; 94, Y linear guide 1; 95, PCB support frame; 96, handle; 97, fixed handle; 98, rear connecting plate of workbench; 99, clamping jaw support strip; 100, pressing block; 101, right supporting plate of workbench; 102, pressing buckle; 103, L-shaped connecting block; 104, supporting nut; 105, longitudinal sliding rod; 106, preheating box side plate; 107, synchronous belt; 108, connecting rod of mobile temperature zone; 109, mobile temperature zone; 110, heater; 111, rear plate of preheating box; 112, shaft core; 113, mesh cover; 114, Y axis of mobile temperature zone; 115, guide shaft; 116, cylindrical rack; 117, air pipe;118, moving temperature zone X axis; 119, wire box; 120, wire tube. ; DETAILED DESCRIPTION

[0034] The present invention will be further described below in conjunction with the embodiments.

[0035] The following examples are used to illustrate the present invention, but they cannot be used to limit the scope of protection of the present invention. The conditions in the examples can be further adjusted according to specific conditions. Simple improvements to the method of the present invention under the premise of the concept of the present invention belong to the scope of protection claimed in the present invention.

[0036] See also Figure 1-8 The present invention provides an automatic multifunctional BGA rework station, including a machine head 01, which is provided with an exhaust gas extraction system 02, a three-color indicator light 09, an emergency stop switch 04, a grating protection system 03, a caster foot cup 07 and an oil mist separator 10 in sequence from outside to inside and from top to bottom. An industrial computer 12 is provided in the lower cover of the machine head 01, a display bracket 15 is provided in the right front of the machine head 01, two displays 14 are provided on the display bracket 15, and a keyboard and mouse placement plate 13 is provided on one side of the display 14. A keyboard and mouse are placed on the keyboard and mouse placement plate 13, and a reference bottom plate 21 is provided below the machine head 01, and the reference bottom plate 21 is provided with a preheating lifting system 27, a preheating box 26, a first cooling system 30, an optical alignment system 23, a moving temperature zone 109, an auxiliary axis 31, a moving temperature zone X axis 118, and a moving temperature zone Y axis in sequence from bottom to top. 114, linear guide 145, linear guide 268, lower hot air system 28, drawer-type stage mechanism and feeding system 22, pillars 19 are fixed on the reference bottom plate 21, and Y-axis systems 18 are respectively arranged on the pillars 19 along the axial direction thereof, the Y-axis system includes a Y-axis, a Y-axis motor and a Y-axis guide screw are arranged in the Y-axis, an X-axis system 32 is arranged on the Y-axis, the X-axis system 32 includes an X-axis, an X-axis motor is arranged in the X-axis, an X-axis guide is arranged along the X-axis direction, an X-axis guide screw is arranged on the X-axis guide, a head mechanism is fixed on the X-axis guide, a heat dissipation hood 16 and a head cover 17 are arranged on the head mechanism, a preheating system is arranged in the preheating box 26, the outer side walls of the preheating box 26 are provided with heat insulation boards 24, a second cooling system 20 is arranged on the right side of the preheating box 26, and a feeding mechanism is arranged in the feeding system 22.

[0037] The head mechanism includes an upper heating mechanism and a mounting mechanism. The upper heating mechanism is provided with a head plate 43. A screw assembly 39 and a Z-axis motor plate 37 are fixed on the head plate 43. A Z-axis motor 38 is installed below the Z-axis motor plate 37. A synchronous wheel 36 is connected to the top of the Z-axis motor 38. A synchronous belt 107 is provided between the two synchronous wheels 36. A ball screw 44 is connected to the synchronous wheel 36. A transmission seat 49 is provided in the ball screw 44. The transmission seat 49 has upper and lower limit pads 40 below it. 7. A linear guide rail 145 is provided under the transmission seat 49. A connecting plate 41 is provided on the right side of the transmission seat 49. A sensor seat 54 is fixed in the connecting plate 41. A pad 59 is provided under the sensor seat 54. An air guide cover 60 is provided under the pad 59. An air guide plate 61 is fixed under the air guide cover 60. A ceramic connecting sleeve 62 is provided under the air guide plate 61. A heater 110 is installed in the ceramic connecting sleeve 62. An upper heat insulation ring is provided under the heater 110. A 90 aluminum head 60 is provided under the ceramic connecting sleeve 62. A wind wheel is installed inside the 3,90 aluminum head 63, and the mounting mechanism includes a pad 59, on which a linear bearing seat 58 and a shaft motor 65 are installed, a round plate 157 is provided above the linear bearing seat 58, a pipe joint 56 is installed on the round plate 157, a shaft is rotatably connected to the round plate 157, an output shaft of the shaft motor 65 is connected to one end of the shaft, a shaft clamp 55 is provided on the shaft, a round plate 253 is provided at the other end of the shaft, an air pipe joint 52 is provided on the top of the round plate 253, a cam 66 is connected to the output shaft of the shaft motor 65, a guide rail support plate 67 is provided on one side of the cam 66, a linear guide 145 is fixed on the guide rail support plate 67, a transmission block is connected to the linear guide 145, two transmission wheels are provided on the linear guide 145, a fixed motor is installed on the right side of the transmission block, and the fixed motor is connected to the transmission wheel. The mounting mechanism is used to realize the automatic mounting function, and at the same time, the upper heating mechanism can perform mobile heating on the BGA chip that needs to be repaired, and the heating effect is good.

[0038] The optical alignment system 23 includes a machine head 01, a machine head lower slider 71 is arranged in the machine head 01, a support block seat 85 and a CCDX axis tank chain bracket 86 are fixed in the machine head lower slider 71, the support block seat 85 is provided with an optical X-axis motor 87 at the bottom, a linear guide 145 is connected to a camera slide 72, an optical Y-axis motor 70 and a drag chain are fixed in the camera slide 72, a slider fixing seat 80 is arranged on the linear guide 145, a camera clamping plate 79 is fixed on the slider fixing seat 80, a camera support plate 73 is fixed on the camera clamping plate 79, and a camera A camera head is mounted on the camera support plate 73, a lens cover plate 75 is provided on the camera head, a ring light cover plate is provided on the lens cover plate 75, an optical light source 76 is provided under the ring light cover plate, a camera sealing plate 77 is provided at the lens of the camera head, a built-in prism and an industrial camera 78 are provided in the camera head, and a CCD baffle plate 83 is provided behind the built-in prism and the industrial camera 78. An optical automatic alignment system is adopted, so that the X, Y, Z axis and ф angle adjustment are all servo-driven, and accurate alignment, intelligent motion system, automatic mounting, automatic welding, etc. are realized. The work quality is guaranteed to cope with high-end precision electronic products.

[0039] The drawer-type loading platform mechanism includes a slide end piece 89 fixed on the reference base plate 21, an upper transverse fixing strip 90 is provided on the slide end piece 89, a linear guide 145 is fixed below the upper transverse fixing strip 90, a workbench support plate is provided below the linear guide 145, a workbench front connecting plate 93 is provided in front of the linear guide 145, a handle 96 is fixed on the front of the workbench front connecting plate 93, a workbench rear connecting plate 98 is fixed behind the linear guide 145, a clamping claw support strip 99 is provided on the linear guide 145, a PCB buckle 102 is provided on the clamping claw support strip 99, and a PCB support frame 33 is provided in the middle position of the linear guide 145. The original fixed mechanism is improved into a drawer-type mechanism, which can be locked arbitrarily within the effective stroke, which is convenient for personnel operation and avoids burns.

[0040] The movable temperature zone includes a preheating box bottom plate, and a preheating box rear plate 111, a preheating box front plate and two preheating box side plates 106 are fixed on the top of the preheating box bottom plate respectively. The heater 110 is installed in the preheating box 26, and a mesh cover 113 is provided above the heater 110. The mesh cover 113 is fixed on the preheating box rear plate 111 and the preheating box front plate. By designing a dual control of the heater temperature, the heating process of the heater and the stopping of heating after heating failure can be effectively detected to prevent heating from getting out of control.

[0041] When in use, first start the machine and prepare, check whether the emergency stop switch 04 is pressed, fix the PCB board to be reworked on the PCB support system, pull out the stage to the corresponding position, put the PCB board in place and then move the drawer-type stage to the specified position, move the lower hot air system to the bottom of the BGA to be reworked, so as to form local concentrated heating for the BGA, which is helpful for the rapid melting of the solder ball and improves the rework efficiency, and put the BGA to be soldered into the feeding system 22, with the solder ball of the BGA facing down and the "corner" on the back corresponding to that on the PCB board (in the same direction). Then programming is carried out, and the optical alignment mechanism and method are used to set the parameters of Mark, other parameters and temperature parameters. After all the parameters are set, they are saved to the specified location for easy use. Finally, the PCB is placed in the corresponding position of the PCB support system, and the lower heating system is aligned with the heated area. The industrial computer 12 is used to open the parameter file in the display 14---select the file---open---select the operation mode---operate. After heating to the specified temperature, the heating head descends to the position of the BGA to complete the rework station, and then the cross-flow fan is turned on for heat dissipation. The industrial computer 12 is used to control the heating head. The optical alignment system 23 adopts servo drive for the adjustment of X, Y, Z axis and ф angle, and realizes precise alignment, automatic mounting and automatic welding of intelligent motion system, which ensures the work quality and can easily cope with high-end precision electronic products. The optical alignment mechanism can enable the CCD camera to see the upper and lower images under the action of the prism, and the alignment function is realized through the overlap of the images. The drawer-type mechanism can be pulled in and out at will, which is convenient for personnel to operate. The mobile temperature zone can be uniformly moved by the computer to realize the automatic mobile heating function. The exhaust gas extraction system 02 adopts a centrifugal fan with large exhaust volume and low noise to realize the anti-noise function.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic multifunctional BGA rework station, comprising a machine head (01), characterized in that: The machine head (01) is provided with an exhaust gas extraction system (02), a three-color indicator light (09), an emergency stop switch (04), a grating protection system (03), a caster foot cup (07) and an oil mist separator (10) in order from outside to inside and from top to bottom. An industrial computer (12) is provided in the lower cover of the machine head (01). A display bracket (15) is provided at the right front of the machine head (01). Two displays (14) are provided on the display bracket (15). A keyboard and mouse placement plate (13) is provided on one side of the display (14). A keyboard and mouse are placed on the keyboard and mouse placement plate (13). A reference bottom plate (21) is provided below the machine head (01). The reference bottom plate (21) is provided with a preheating lifting system (27), a preheating lifting system (28), a preheating lifting system (29), a preheating lifting system (30), and a preheating lifting system (31). A heat box (26), a first cooling system (30), an optical alignment system (23), a movable temperature zone (109), an auxiliary axis (31), a movable temperature zone X axis (118), a movable temperature zone Y axis (114), a linear guide rail 1 (45), a linear guide rail 2 (68), a lower hot air system (28), a drawer-type stage mechanism and a feeding system (22), wherein a support (19) is fixed to the reference base plate (21), and each support (19) is provided with a Y-axis system (18) extending along its axial direction, wherein the Y-axis system includes a Y-axis, wherein a Y-axis motor and a Y-axis guide screw are provided in the Y-axis, and an X-axis system (32) is provided on the Y-axis, wherein the X-axis system (32) includes an X-axis, wherein an X-axis motor is provided in the X-axis, and a Y-axis guide screw is provided along the X-axis. An X-axis slide rail is provided in the axial direction, an X-axis slide rail lead screw is provided on the X-axis slide rail, a head mechanism is fixed on the X-axis slide rail, a heat dissipation hood (16) and a head cover (17) are provided on the head mechanism, a preheating system is provided in the preheating box (26), the outer wall of the preheating box (26) is provided with a heat insulation board (24), a second cooling system (20) is provided on the right side of the preheating box (26), a feeding mechanism is provided in the feeding system (22), the head mechanism includes an upper heating mechanism and a mounting mechanism, a head plate (43) is provided in the upper heating mechanism, a lead screw assembly (39) and a Z-axis motor plate (37) are fixed on the head plate (43), and a Z-axis motor plate (37) is provided below the Z-axis motor plate (37). The Z-axis motor (38) is connected to a synchronous wheel (36) above, a synchronous belt (107) is provided between the two synchronous wheels (36), a ball screw (44) is connected to the synchronous wheel (36), a transmission seat (49) is provided in the ball screw (44), the transmission seat (49) has upper and lower limit pads (47) below it, a linear guide rail 1 (45) is provided below the transmission seat (49), a connecting plate (41) is provided on the right side of the transmission seat (49), a sensor seat (54) is fixed in the connecting plate (41), a pad (59) is provided below the sensor seat (54), an air guide cover (60) is provided below the pad (59), and an air guide plate (61) is fixed below the air guide cover (60).A ceramic connecting sleeve (62) is disposed below the air guide plate (61), a heater (110) is installed in the ceramic connecting sleeve (62), an upper heat insulating ring is disposed below the heater (110), a 90 aluminum head (63) is disposed below the ceramic connecting sleeve (62), a wind wheel is installed inside the 90 aluminum head (63), the mounting mechanism comprises a pad (59), a linear bearing seat (58) and a rotating shaft motor (65) are mounted on the pad (59), a round plate 1 (57) is disposed above the linear bearing seat (58), a pipe joint (56) is mounted on the round plate 1 (57), a rotating shaft is rotatably connected to the round plate 1 (57), an output shaft of the rotating shaft motor (65) is connected to one end of the rotating shaft, and a rotating shaft is disposed on the rotating shaft. A rotating shaft clamp (55) is provided, a round plate 2 (53) is provided at the other end of the rotating shaft, a trachea joint (52) is provided at the top of the round plate 2 (53), an output shaft of the rotating shaft motor (65) is connected to a cam (66), a guide rail support plate (67) is provided on one side of the cam (66), the linear guide rail 1 (45) is fixed on the guide rail support plate (67), the linear guide rail 1 (45) is connected to a transmission block, two transmission wheels are provided on the linear guide rail 1 (45), a fixed motor is installed on the right side of the transmission block, the fixed motor is connected to the transmission wheel, and the optical alignment system (23) includes a machine head (01), a machine head lower slider (71) is provided in the machine head (01), and a support block seat is fixed in the machine head lower slider (71) (85) and CCDX axis tank chain bracket (86), the support block seat (85) is provided with an optical X-axis motor (87) at the bottom, the linear guide rail 1 (45) is connected to the camera slide (72), the camera slide (72) has a fixed optical Y-axis motor (70) and a drag chain, the linear guide rail 1 (45) is provided with a slider fixing seat (80), the slider fixing seat (80) is fixed with a camera clamp (79), the camera clamp (79) is fixed with a camera support plate (73), the camera support plate (73) is installed with a camera head, the camera is provided with a lens cover plate (75), the lens cover plate (75) is provided with a ring light cover plate, an optical light source (76) is provided under the ring light cover plate, the lens of the camera A camera cover plate (77) is provided at the head, a built-in prism and an industrial camera (78) are provided in the camera, a CCD baffle plate (83) is provided behind the built-in prism and the industrial camera (78), the drawer-type stage mechanism comprises a slide end piece (89) fixed on the reference bottom plate (21), an upper transverse fixing strip (90) is provided on the slide end piece (89), the linear guide rail 1 (45) is fixed below the upper transverse fixing strip (90), a workbench support plate is provided below the linear guide rail 1 (45), a workbench front connecting plate (93) is provided in front of the linear guide rail 1 (45), a handle (96) is fixed on the front of the workbench front connecting plate (93), and a workbench rear connecting plate (98) is fixed behind the linear guide rail 1 (45),The linear guide rail 1 (45) is provided with a clamping claw support bar (99), and a PCB buckle (102) is provided on the clamping claw support bar (99). A PCB support frame (33) is provided in the middle of the linear guide rail 1 (45). The movable temperature zone includes a preheating box bottom plate, and a preheating box rear plate (111), a preheating box front plate and two preheating box side plates (106) are fixed on the top of the preheating box bottom plate. The heater (110) is installed in the preheating box (26). A mesh cover (113) is provided above the heater (110), and the mesh cover (113) is fixed on the preheating box rear plate (111) and the preheating box front plate.

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