阅读说明：本技术 一种立式飞针机 (Vertical flying-needle machine ) 是由 杨成 陈飞 郭玉栋 黄淼兰 叶金茂 于 2021-09-15 设计创作，主要内容包括：本发明公开了一种立式飞针机,包括：机架,所述机架的底部设置有第一直线导轨,所述机架的顶部设置有第二直线导轨,所述第一直线导轨和第二直线导轨之间架设有平行的第一直线驱动器和第二直线驱动器；所述第一直线导轨的上方设置有第一夹具,所述第二直线导轨的下方设置有第二夹具；所述第一直线驱动器与第二直线驱动器都和第一直线电机和第二直线电机连接；该立式飞针机通过采用直线电机双动子的驱动方式,可以弥补丝杆单侧布置所产生的偏位、单边磨损、精度差的问题,而且直线电机位置通过光栅尺确定位置,精度更高；另外,通过两个夹具夹持PCB电路板,同时夹具利用气缸来控制,使得整个飞针机跨度大、精度高。(The invention discloses a vertical flying probe machine, comprising: the device comprises a rack, wherein a first linear guide rail is arranged at the bottom of the rack, a second linear guide rail is arranged at the top of the rack, and a first linear driver and a second linear driver which are parallel are erected between the first linear guide rail and the second linear guide rail; a first clamp is arranged above the first linear guide rail, and a second clamp is arranged below the second linear guide rail; the first linear driver and the second linear driver are connected with the first linear motor and the second linear motor; according to the vertical flying needle machine, the problems of deviation, single-side abrasion and poor precision caused by single-side arrangement of the screw rod can be solved by adopting a driving mode of the double rotors of the linear motor, and the position of the linear motor is determined by the grating ruler, so that the precision is higher; in addition, through two anchor clamps centre gripping PCB circuit boards, anchor clamps utilize the cylinder to control simultaneously for whole flying probe machine span is big, the precision is high.)

1. A vertical flying-pin machine, comprising: the device comprises a rack, wherein a first linear guide rail is arranged at the bottom of the rack, a second linear guide rail is arranged at the top of the rack, and a first linear driver and a second linear driver which are parallel are erected between the first linear guide rail and the second linear guide rail; the first linear driver and the second linear driver are respectively provided with a first test head and a second test head; a first clamp is arranged above the first linear guide rail, and a second clamp is arranged below the second linear guide rail; the first linear driver and the second linear driver are connected with the first linear motor and the second linear motor; the first clamp and the second clamp respectively comprise a fixed side clamping plate and a movable side clamping plate which are arranged in parallel, a third linear guide rail is arranged between the fixed side clamping plate and the movable side clamping plate and arranged along the extending direction of the fixed side clamping plate and the movable side clamping plate, a wedge-shaped pulling plate is connected onto the third linear guide rail in a sliding manner, and the wedge-shaped pulling plate is connected with an air cylinder; the wedge-shaped pulling plate is provided with a plurality of inclined waist-shaped holes.

2. The vertical flying probe machine of claim 1, wherein: the first linear motor comprises a first linear motor stator and two first linear motor rotors, and the first linear driver and the second linear driver are respectively connected to one of the first linear motor rotors.

3. The vertical flying probe machine of claim 1, wherein: the second linear motor comprises a second linear motor stator and two second linear motor rotors, and the first linear driver and the second linear driver are respectively connected to one of the second linear motor rotors.

4. The vertical flying probe machine of claim 1, wherein: an air cylinder mounting plate is arranged on one side of the third linear guide rail, and the air cylinder is fixed on the air cylinder mounting plate; the air cylinder mounting plate is provided with a through hole, and an output shaft of the air cylinder penetrates through the through hole to be connected with the wedge-shaped pulling plate.

5. The vertical flying probe machine of claim 4, wherein: the cylinder mounting plate is fixed on the fixed side clamping plate.

6. The vertical flying probe machine of claim 1, wherein: the movable side clamping plate is connected with the fixed side clamping plate through a plurality of linear bearings and guide optical axes.

7. The vertical flying probe machine of claim 1, wherein: the third linear guide is fixed on the guide rail mounting plate, and the guide rail mounting plate is fixed on the fixed side clamping plate.

8. The vertical flying probe machine of claim 1, wherein: and clamp base plates are arranged at the top of the fixed side clamping plate and the top of the movable side clamping plate.

9. The vertical flying probe machine of claim 1, wherein: the first linear driver comprises a first screw rod, a first nut is connected to the first screw rod, and the first testing head is connected with the first nut.

10. The vertical flying probe machine of claim 1, wherein: the second linear driver comprises a second screw rod, a second nut is connected to the second screw rod, and the second testing head is connected with the second nut.

Technical Field

The invention relates to the field of PCB (printed circuit board) test equipment, in particular to a vertical flying probe machine.

Background

Due to the fact that requirements for the PCB are higher and higher along with the development of the technology level, and the PCB is larger and larger, the detection accuracy and reliability of the PCB are required to be higher and higher. Most of the existing vertical flying-needle equipment uses a linear driver module as a main power. These structures all can have mechanical location problem, because the linear actuator belongs to the unilateral drive other side and is driven, and the driven side has the power time delay that mechanical clearance brought certainly, can lead to the inaccurate problem of location.

The PCB board that detects of present detection machine is bigger and bigger, and test platform is also bigger and bigger, and the straight line module can't accomplish unlimited increase span, and the big precision of span can be worse more moreover.

Disclosure of Invention

In order to solve the problems, the invention provides a vertical flying-probe machine which is large in span and high in precision.

In order to achieve the purpose, the invention provides the technical scheme that: a vertical flying probe machine comprising: the device comprises a rack, wherein a first linear guide rail is arranged at the bottom of the rack, a second linear guide rail is arranged at the top of the rack, and a first linear driver and a second linear driver which are parallel are erected between the first linear guide rail and the second linear guide rail; the first linear driver and the second linear driver are respectively provided with a first test head and a second test head; a first clamp is arranged above the first linear guide rail, and a second clamp is arranged below the second linear guide rail; the first linear driver and the second linear driver are connected with the first linear motor and the second linear motor; the first clamp and the second clamp respectively comprise a fixed side clamping plate and a movable side clamping plate which are arranged in parallel, a third linear guide rail is arranged between the fixed side clamping plate and the movable side clamping plate and arranged along the extending direction of the fixed side clamping plate and the movable side clamping plate, a wedge-shaped pulling plate is connected onto the third linear guide rail in a sliding manner, and the wedge-shaped pulling plate is connected with an air cylinder; the wedge-shaped pulling plate is provided with a plurality of inclined waist-shaped holes.

Preferably, the first linear motor includes a first linear motor stator and two first linear motor movers, and the first linear driver and the second linear driver are respectively connected to one of the first linear motor movers.

As a preferred technical solution, the second linear motor includes a second linear motor stator and two second linear motor movers, and the first linear driver and the second linear driver are respectively connected to one of the second linear motor movers.

As a preferred technical scheme, an air cylinder mounting plate is arranged on one side of the third linear guide rail, and the air cylinder is fixed on the air cylinder mounting plate; the air cylinder mounting plate is provided with a through hole, and an output shaft of the air cylinder penetrates through the through hole to be connected with the wedge-shaped pulling plate.

Preferably, the cylinder mounting plate is fixed to the fixed side plate.

Preferably, the movable side plate is connected to the fixed side plate through a plurality of linear bearings and a guide optical axis.

Preferably, the third linear guide is fixed to a guide mounting plate, and the guide mounting plate is fixed to the fixed side clamping plate.

As a preferable technical scheme, clamp base plates are arranged on the top of the fixed side clamping plate and the top of the movable side clamping plate.

As a preferred technical solution, the first linear actuator includes a first lead screw, a first nut is connected to the first lead screw, and the first test head is connected to the first nut.

As a preferable technical solution, the second linear actuator includes a second lead screw, a second nut is connected to the second lead screw, and the second test head is connected to the second nut.

Compared with the prior art, the invention has the beneficial effects that: according to the vertical flying needle machine, the problems of deviation, single-side abrasion and poor precision caused by single-side arrangement of the screw rod can be solved by adopting a driving mode of the double rotors of the linear motor, and the position of the linear motor is determined by the grating ruler, so that the precision is higher; in addition, through two anchor clamps centre gripping PCB circuit boards, anchor clamps utilize the cylinder to control simultaneously for whole flying probe machine span is big, the precision is high.

Drawings

FIG. 1 is an overall block diagram of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an overall structural view of the first jig;

FIG. 4 is an exploded view of a first clamp;

fig. 5 is a partially enlarged view at B in fig. 3.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited. Further, although the terms used in the present application are selected from publicly known and used terms, some of the terms mentioned in the specification of the present application may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Further, it is required that the present application is understood not only by the actual terms used but also by the meaning of each term lying within.

Referring to fig. 1 and 2, the present embodiment provides a vertical flying probe machine including: the device comprises a rack 1, wherein a first linear guide rail 21 is arranged at the bottom of the rack 1, a second linear guide rail 22 is arranged at the top of the rack 1, and a first linear driver 31 and a second linear driver 32 which are parallel to each other are erected between the first linear guide rail 21 and the second linear guide rail 22; the first linear driver 31 and the second linear driver 32 are respectively provided with a first test head 33 and a second test head 34; the first test head 33 and the second test head 34 are used for testing PCB circuit boards, and since the test heads are in the prior art, they are not specifically described in this embodiment.

Further, the first linear driver 31 and the second linear driver 32 are connected to the first linear motor 41 and the second linear motor 42.

Further, a first clamp 5 is arranged above the first linear guide rail 21, and a second clamp 6 is arranged below the second linear guide rail 22; the first and second clamps 5 and 6 are used to clamp the PCB circuit board for inspection.

Referring to fig. 3 to 5, since the first jig 5 and the second jig 6 have the same structure, the first jig 5 is exemplified in this embodiment. First anchor clamps 5 are including parallel arrangement's fixed side splint 510 and activity side splint 511, activity side splint 511 is connected with fixed side splint 510 with direction optical axis 522 through a plurality of linear bearing 521, in addition, in this embodiment, the top of fixed side splint 510 and the top of activity side splint 511 all are provided with anchor clamps backing plate 512, the centre gripping area that anchor clamps backing plate 512 is bigger, the centre gripping effect is better, in addition, for further improvement centre gripping effect simultaneously in order to protect FPC PCB board, all be provided with gasket 513 that rubber made from one side relatively at anchor clamps backing plate 512.

Further, a linear guide 531 is provided between the fixed side clamp 510 and the movable side clamp 511, the linear guide 531 is provided along the extending direction of the fixed side clamp 510 and the movable side clamp 511, the linear guide 531 is fixed to a guide mounting plate 532, and the guide mounting plate 532 is fixed to the fixed side clamp 510. The linear guide 531 is connected with a plurality of sliders 533, the wedge-shaped pulling plate 540 is fixedly connected with the sliders 533 through screws, and the wedge-shaped pulling plate 540 is provided with a plurality of inclined waist-shaped holes 5401. A cylinder mounting plate 551 is arranged at one side of the linear guide 531, the cylinder mounting plate 551 is fixed on the fixed side clamp plate 510, and the cylinder 552 is fixed on the cylinder mounting plate 551; the cylinder mounting plate 551 not only can be used for fixing the cylinder 552, but also can play a limiting role. A through hole 5511 is formed in the cylinder mounting plate 551, and an output shaft of the cylinder 552 passes through the through hole 5511 and is connected with the wedge-shaped pulling plate 540.

The movable side clamping plate 511 of the stretching clamp is fixed on the fixed side clamping plate 510 of the clamp through a linear bearing 521 and a guide optical axis 522 to finish the constraint of the opening and closing direction; the opening and closing actions are controlled by a plurality of groups of waist-shaped holes 5401 on the wedge-shaped pulling plate 540 and the guide bearing. The wedge-shaped pulling plate 540 is fixed on the guide rail mounting plate 532 through the linear guide rail 531; the high rigidity and high precision control of the wedge-shaped pulling plate can be realized by additionally arranging the linear guide rail 531. Finally, the cylinder 552 is connected with the wedge-shaped pulling plate 540 to complete the stretching action.

Further, the first linear motor 41 includes a first linear motor stator and two first linear motor movers, and the first linear driver 31 and the second linear driver 32 are respectively connected to one of the first linear motor movers.

Similarly, the second linear motor 42 includes a second linear motor stator and two second linear motor movers, and the first linear driver 31 and the second linear driver 32 are respectively connected to one of the second linear motor movers.

Further, the first linear driver 31 includes a first lead screw 311, a first nut 312 is connected to the first lead screw 311, and the first test head 33 is connected to the first nut 312.

Similarly, the second linear actuator 32 includes a second screw 321, a second nut 312 is connected to the second screw 321, and the second test head 34 is connected to the second nut 312.

The X main shaft of the vertical flying-probe machine is driven by a linear motor, the problems of uneven stress and deflection of a screw rod can be solved by adopting double-rotor driving, and the position of the linear motor is fed back to a real-time position by a grating ruler; the linear motor and the linear guide rail are arranged on the marble platform 1, and the Y axis adopts a high-precision linear driver to drive the test head to move in the Y direction; the linear motor, the linear driver and the flying probe testing head form an x/y/z triaxial form; the first clamp and the second clamp are controlled to be opened and closed by an air cylinder; the test platform formed by combining the linear motor and the linear module has extremely high precision.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.