A linear drive crossbeam of a mounter

Abstract

The present invention discloses a linear drive crossbeam of a mounter, which includes an X-axis drive part, a Y-axis drive part, a support mounting seat, and a mounting head. The X-axis drive part includes a support crossbeam and a linear motor located on the support crossbeam. The support crossbeam is installed on the support mounting seat. The mounting head is fixed on the slider of the linear motor. There are two mounting heads, and the two mounting heads slide relative to each other on the linear motor. The use of the linear motor for driving improves the mounting accuracy and mounting speed of the mounting head, and at the same time avoids the wear caused by the contact between the linear slide rail and the slider. Two mounting heads are arranged on one linear motor to perform LED mounting simultaneously, which further increases the mounting efficiency of the mounter. Moreover, the two mounting heads are driven by the same linear motor, which simplifies the machine structure and saves production costs.

Description

Technical Field

[0001] The present invention relates to a cross beam of a mounter, and more particularly to a linear drive cross beam of a mounter. Background Art

[0002] With the development of SMT chip mounting technology, the structure of the mounter is constantly improved. Traditional LED mounters usually use ordinary slide rails and sliders to drive the mounting head in all directions. The driving process of the ordinary slide rail and slider cooperation requires a large amount of energy driving equipment such as air cylinders. Especially when the mounting head is driven integrally, a large amount of energy is consumed during use. Moreover, the cooperation of the ordinary slide rail and slider is not sensitive enough to control the movement distance and movement time during the movement process, the movement accuracy is relatively low, and the slider and the slide rail are easily worn during movement, reducing the mounting accuracy. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a linear drive cross beam of a mounter that uses a linear drive motor to drive two mounting heads.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a linear drive cross beam of a mounter, including an X-axis drive part, a Y-axis drive part, a support mounting seat, and a mounting head. The X-axis drive part includes a support cross beam and a linear motor located on the support cross beam. The support cross beam is installed on the support mounting seat. The mounting head is fixed on the slider of the linear motor. There are two mounting heads, and the two mounting heads slide relative to each other on the linear motor. The mounting head includes a drive device, a Z-axis part above the machine head, and a Z-axis part below the machine head. There are two drive devices, which are respectively used to drive the Z-axis part above the machine head and the Z-axis part below the machine head.

[0005] As an improvement of the above technical solution, a magnetic levitation linear slide rail and an X-axis support slide rail are provided on the linear motor. Magnetic levitation linear sliders and X-axis support sliders are provided at the positions corresponding to the magnetic levitation linear slide rail and the X-axis support slide rail on the mounting head. Two sets of magnetic levitation linear slide rails and X-axis support slide rails are respectively provided corresponding to the two mounting heads. The cooperation of the magnetic levitation linear slide rail and the magnetic levitation linear slider realizes the linear movement of the mounting head in the X-axis direction. The cooperation of the X-axis support slide rail and the X-axis support slider forms a support for the linear movement of the mounting head in the X-axis direction.

[0006] As a further improvement of the above technical solution, two X-axis support slide rails are provided corresponding to each mounting head. The two slide rails corresponding to each mounting head are respectively located on both sides of the magnetic levitation linear slide rail and are arranged parallel to the magnetic levitation linear slide rail. Two X-axis support sliders are provided on each mounting head corresponding to the X-axis support slide rail.

[0007] As a further improvement of the above technical solution, a positioning detection device is further provided on the linear motor. The positioning detection device is respectively arranged at the starting and ending positions of the movement of the two mounting heads. The positioning detection device includes a positioning detection groove located on the linear motor and a positioning detection block located on the mounting head.

[0008] As a further improvement of the above technical solution, the support mounting seat includes an upper support portion and a lower support portion. The upper support portion is used for mounting and supporting the cross beam, and a depression is provided in the middle of the lower support portion.

[0009] As a further improvement of the above technical solution, a moving support frame is further provided at the inner depression of the lower support portion. A support table surface and support holes are provided on the moving support frame, and the support table surface and support holes are respectively used for supporting the feeding conveyor and the feeding lead screw.

[0010] As a further improvement of the above technical solution, the Y-axis driving part includes a central slider and side sliders arranged on the cross beam. Two central sliders and side sliders are symmetrically arranged on the cross beam. The central sliders and side sliders cooperate with the central slide rail and side slide rails to push the cross beam to slide in the Y-axis direction.

[0011] As a further improvement of the above technical solution, the Z-axis part above the machine head and the Z-axis part below the machine head have the same structure, including a machine head cross beam, a connecting block, a suction rod and a suction nozzle. A plurality of suction rods, suction nozzles and connecting blocks are correspondingly provided. Each suction rod, suction nozzle and connecting block form a suction nozzle group. The suction nozzle groups of the Z-axis part above the machine head and the Z-axis part below the machine head are arranged at equal intervals.

[0012] As a further improvement of the above technical solution, the connecting block of the Z-axis part above the machine head is located above the suction rod, and the connecting block of the Z-axis part below the machine head is located below the suction rod. The suction nozzle groups of the Z-axis part above the machine head and the Z-axis part below the machine head are arranged in a cross pattern on the same horizontal line.

[0013] As a further improvement of the above technical solution, an auxiliary feeding rod is further provided on the support mounting seat. The auxiliary feeding rod includes an extension part and a sliding part. The extension part is fixed on the side of the support mounting seat and extends from the middle of the support mounting seat to the edge. The sliding part includes a rotating shaft and a rotating rod. The rotating rod is sleeved on the rotating shaft and is rotatably connected to the rotating shaft.

[0014] The beneficial effects of the present invention are as follows: The linear drive crossbeam of the mounter is improved at the crossbeam drive position of a general mounter. A linear drive motor is used to drive the mounting head located on the mounting crossbeam in the X-axis direction, improving the mounting accuracy and speed of the mounting head, and at the same time avoiding the wear caused by the contact between the linear slide rail and the slider. Two mounting heads are arranged on one linear motor to simultaneously perform LED mounting, further increasing the mounting efficiency of the mounter. Moreover, the two mounting heads are driven by the same linear motor, simplifying the machine structure and saving production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the drawings and embodiments.

[0016] Figure 1 is a schematic assembly diagram of a part of the structure of the present invention;

[0017] Figure 2 is a schematic diagram of a part of the support crossbeam structure of the present invention;

[0018] Figure 3 is a schematic diagram of the back structure of a part of the support crossbeam of the present invention;

[0019] Figure 4 is a schematic assembly diagram of the linear motor of the present invention;

[0020] Figure 5 is a schematic assembly diagram of a part of the structure of the mounting head of the present invention.

[0021] 1. X-axis drive part; 11. Support crossbeam; 12. Linear motor; 13. Magnetic levitation linear slide rail; 14. X-axis support slide rail; 15. Magnetic levitation linear slider; 16. X-axis support slider; 2. Y-axis drive part; 3. Support mounting seat; 31. Support tabletop; 32. Support hole; 33. Auxiliary feeding rod; 4. Mounting head; 41. Drive device; 42. Z-axis part on the machine head; 43. Z-axis part under the machine head; 5. Position detection device. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The concept, specific structure and technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments and drawings to fully understand the purpose, features and effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative efforts shall fall within the scope of protection of the present invention. In addition, all the connection / connection relationships involved in the patent do not simply refer to the direct connection of components, but refer to the more optimal connection structure that can be formed by adding or reducing connection accessories according to the specific implementation situation. Each technical feature in the present invention can be combined interactively without conflict.

[0023] Reference Figure 1 、 Figure 2 A linear drive crossbeam of a chip mounter, comprising an X-axis drive part 1, a Y-axis drive part 2, a support mounting base 3 and a mounting head 4. The X-axis drive part 1 includes a support crossbeam 11 and a linear motor 12 located on the support crossbeam 11. The support crossbeam 11 is mounted on the support mounting base 3. The mounting head 4 is fixed on the slider of the linear motor 12. There are two mounting heads 4, and the two mounting heads 4 slide relative to each other on the linear motor 12. Using the linear motor 12 to drive the mounting head 4 simplifies the drive structure, saves production costs, and avoids the wear caused by the contact between the linear slide rail and the slider, increasing the movement accuracy and mounting speed of the mounting head 4 during mounting. The two mounting heads 4 move on a linear motor 12 at the same time, greatly improving the mounting efficiency and mounting accuracy of the chip mounter while ensuring the simplicity of the chip mounter structure.

[0024] A magnetic levitation linear slide rail 13 and an X-axis support slide rail 14 are provided on the linear motor 12. At the positions corresponding to the magnetic levitation linear slide rail 13 and the X-axis support slide rail 14 on the mounting head 4, there are a magnetic levitation linear slider 15 and an X-axis support slider 16. Two sets of the magnetic levitation linear slide rail 13 and the X-axis support slide rail 14 are respectively provided corresponding to the two mounting heads 4. The cooperation between the magnetic levitation linear slide rail 13 and the magnetic levitation linear slider 15 realizes the linear movement of the mounting head 4 in the X-axis direction. Using the linear motor 12 in the magnetic levitation motion state, the magnetic levitation linear slider 15 and the magnetic levitation linear slide rail 13 do not contact during the movement process, reducing the wear on the magnetic levitation slider during the movement process, ensuring the chip mounting accuracy of the chip mounter and extending the service life of the chip mounter. The X-axis support slide rail 14 cooperates with the X-axis support slider 16 to support the linear movement of the mounting head 4 in the X-axis direction. Two X-axis support slide rails 14 are provided corresponding to each mounting head 4. The two X-axis support slide rails 14 corresponding to each mounting head 4 are respectively located on both sides of the magnetic levitation linear slide rail 13 and are arranged parallel to the magnetic levitation linear slide rail 13. Two X-axis support sliders 16 are provided on each mounting head 4 corresponding to the X-axis support slide rail 14. The two X-axis support slide rails 14 arranged parallel to the magnetic levitation linear slide rail 13 ensure the stability of the linear motor 12 during movement on both sides of the magnetic levitation linear slide rail 13, and at the same time share most of the weight of the mounting head, reducing the force on the linear motor 12, increasing the service time of the linear motor 12, and extending the service life of the mounting head 4.

[0025] A positioning and detecting device 5 is also provided on the linear motor 12. The positioning and detecting device 5 is respectively arranged at the starting and ending positions of the movement of the two mounting heads 4. The positioning and detecting device 5 includes a positioning and detecting groove on the linear motor 12 and a positioning and detecting block on the mounting head 4. The positioning and detecting block and the positioning and detecting groove are located on the same straight line. When the linear motor 12 drives the mounting head 4 to move, the positioning and detecting block on the linear motor 12 moves accordingly. When the positioning and detecting block moves to the position of the positioning and detecting groove, the detection sensor senses the change and sends a signal to the control system. The control system knows the position of the linear motor 12 and then controls the stop and start of the linear motor 12.

[0026] The support mounting seat 3 includes an upper support part and a lower support part. The upper support part is used for mounting the support cross beam 11. A depression is provided in the middle of the lower support part. A movable support frame is also provided in the inner depression of the lower support part. A support table surface 31 and a support hole 32 are provided on the movable support frame. The support table surface 31 and the support hole 32 are respectively used for supporting the board feeding conveyor and the board feeding lead screw. An auxiliary feeding rod 33 is also provided on the support mounting seat 3. The auxiliary feeding rod 33 includes an extension part and a sliding part. The extension part is fixed on the side of the support mounting seat 3 and extends from the middle of the support mounting seat 3 to the edge. The sliding part includes a rotating shaft and a rotating rod. The rotating rod is sleeved on the rotating shaft and is rotatably connected to the rotating shaft. The support table surface 31 forms a bridge connection at the depression of the support cross beam 11. The support hole 32 is located at the bottom of the support table surface 31. The dimensions and distances between the support table surface 31 and the support hole 32 are the same as the distances between the board feeding conveyor and the board feeding lead screw, and are respectively used for supporting the board feeding conveyor and the board feeding lead screw. The up-and-down combined integral support structure saves the space required for installation. The bridge-shaped structure facilitates the accurate mounting of the mounting head 4, with high mounting accuracy and high efficiency.

[0027] The Y-axis driving part 2 includes a central slider and side sliders provided on the support cross beam 11. Two central sliders and two side sliders are symmetrically arranged on the support cross beam 11. The central slider and the side sliders cooperate with the central slide rail and the side slide rails to push the support cross beam 11 to slide in the Y-axis direction. The two slide rails support the sliding of the support cross beam 11 at different positions corresponding to the positions when the mounting head 4 sucks and mounts the chip components, so that the support cross beam 11 can still maintain balance and stability when the force is uneven, improving the support effect and ensuring the mounting accuracy.

[0028] The pick-and-place head 4 includes a driving device 41, a Z-axis part 42 above the head, and a Z-axis part 43 below the head. There are two driving devices 41, which are respectively used to drive the Z-axis part 42 above the head and the Z-axis part 43 below the head. The Z-axis part 42 above the head and the Z-axis part 43 below the head have the same structure, including a head cross beam, a connecting block, a suction rod, and a suction nozzle. A plurality of suction rods, suction nozzles, and connecting blocks are respectively provided. Each suction rod, suction nozzle, and connecting block form a suction nozzle group. The suction nozzle groups of the Z-axis part 42 above the head and the Z-axis part 43 below the head are arranged at equal intervals. The connecting block of the Z-axis part 42 above the head is located above the suction rod, and the connecting block of the Z-axis part 43 below the head is located below the suction rod. The suction nozzle groups of the Z-axis part 42 above the head and the Z-axis part 43 below the head are arranged in a cross pattern on the same horizontal line. A suction nozzle group of the Z-axis part 42 above the head penetrates between the suction nozzle groups of the two Z-axis parts 43 below the head. Two adjacent connecting blocks are staggered in the vertical direction and do not affect each other. A small distance setting between the suction nozzle groups is achieved, and the usage range of the pick-and-place head 4 is expanded.

[0029] The above is a specific description of the preferred embodiment of the present invention. However, the present invention is not limited to the above embodiment. Those skilled in the art can make various equivalent deformations or substitutions without departing from the spirit of the present invention. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. The linear drive crossbeam of a mounter, characterized in that: it includes an X-axis drive part, a Y-axis drive part, a support mounting base and a mounting head. The X-axis drive part includes a support crossbeam and a linear motor located on the support crossbeam. The support crossbeam is installed on the support mounting base. The mounting head is fixed on the slider of the linear motor. There are two mounting heads, and the two mounting heads slide relative to each other on the linear motor. The mounting head includes a drive device, a Z-axis part above the head and a Z-axis part below the head. There are two drive devices, which are respectively used to drive the Z-axis part above the head and the Z-axis part below the head; a magnetic levitation linear slide rail and an X-axis support slide rail are provided on the linear motor. At the positions corresponding to the magnetic levitation linear slide rail and the X-axis support slide rail on the mounting head, there are a magnetic levitation linear slider and an X-axis support slider. Two groups of the magnetic levitation linear slide rail and the X-axis support slide rail are respectively provided corresponding to the two mounting heads. The cooperation between the magnetic levitation linear slide rail and the magnetic levitation linear slider realizes the linear movement of the mounting head in the X-axis direction, and the cooperation between the X-axis support slide rail and the X-axis support slider forms a support for the linear movement of the mounting head in the X-axis direction; the Z-axis part above the head and the Z-axis part below the head have the same structure, including a head crossbeam, a connecting block, a suction rod and a suction nozzle. A plurality of suction rods, suction nozzles and connecting blocks are respectively provided. Each suction rod, suction nozzle and connecting block form a suction nozzle group. The suction nozzle groups of the Z-axis part above the head and the Z-axis part below the head are arranged at equal intervals. The connecting block of the Z-axis part above the head is located above the suction rod, and the connecting block of the Z-axis part below the head is located below the suction rod. The suction nozzle groups of the Z-axis part above the head and the Z-axis part below the head are arranged in a cross pattern on the same horizontal line.

2. The linear drive crossbeam of a mounter according to claim 1, characterized in that: two X-axis support slide rails are provided corresponding to each mounting head. The two slide rails corresponding to each mounting head are respectively located on both sides of the magnetic levitation linear slide rail and are arranged parallel to the magnetic levitation linear slide rail. Two X-axis support sliders are provided on each mounting head corresponding to the X-axis support slide rail.

3. The linear drive crossbeam of a mounter according to claim 1, characterized in that: a positioning detection device is further provided on the linear motor. The positioning detection device is respectively arranged at the starting and ending positions of the movement of the two mounting heads. The positioning detection device includes a positioning detection groove located on the linear motor and a positioning detection block located on the mounting head.

4. The linear drive crossbeam of a mounter according to claim 1, characterized in that: the support mounting base includes an upper support part and a lower support part. The upper support part is used to mount the support crossbeam, and a depression is provided in the middle of the lower support part.

5. The linear drive crossbeam of a mounter according to claim 4, characterized in that: a moving support frame is further provided in the inner depression of the lower support part. A support table surface and a support hole are provided on the moving support frame. The support table surface and the support hole are respectively used to support the feeding conveyor frame and the feeding lead screw.

6. The linear drive crossbeam of a mounter according to claim 5, characterized in that: The Y-axis driving part includes a central slider and side sliders arranged on the support cross beam. Two central sliders and two side sliders are symmetrically arranged on the support cross beam. The central sliders and side sliders cooperate with the central slide rail and side slide rails to push the support cross beam to slide in the Y-axis direction.

7. The linear drive cross beam of a chip mounter according to claim 1, wherein: An auxiliary feeding rod is further provided on the support mounting seat. The auxiliary feeding rod includes an extension part and a sliding part. The extension part is fixed to the side of the support mounting seat and extends from the middle of the support mounting seat to the edge. The sliding part includes a rotating shaft and a rotating rod. The rotating rod is sleeved on the rotating shaft and is rotatably connected to the rotating shaft.

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