CN112747095B

CN112747095B - Drive assembly and automatic visual detection device of flexible circuit board

Info

Publication number: CN112747095B
Application number: CN202011595760.3A
Authority: CN
Inventors: 刘丽丽; 刘华雷; 杨云仙; 曹葵康; 温延培
Original assignee: Tztek Technology Co Ltd
Current assignee: Tztek Technology Co Ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2022-03-15
Anticipated expiration: 2040-12-29
Also published as: CN112747095A

Abstract

The invention provides a driving assembly and an automatic visual inspection device for a flexible circuit board, wherein the driving assembly is used for driving a driven object to perform linear motion and comprises: the mounting seat comprises a first mounting plate and a second mounting plate which are arranged at intervals in the vertical direction, a first shaft hole is formed in the first mounting plate, a second shaft hole is formed in the second mounting plate, and the shaft center positions of the first shaft hole and the second shaft hole are located on the same horizontal line; the motor is positioned on one side of the mounting seat, and an output shaft of the motor passes through the first shaft hole; and the screw rod assembly is positioned on the other side of the mounting seat, one end of the screw rod assembly passes through the second shaft hole and is connected with an output shaft of the motor. According to the driving assembly and the automatic visual detection device for the flexible circuit board, disclosed by the embodiment of the invention, the screw rod and the motor are connected through the same mounting seat, so that the response speed is increased, the synchronization can be ensured, and good driving effect and accuracy are realized.

Description

Drive assembly and automatic visual detection device of flexible circuit board

Technical Field

The invention relates to the technical field of drive response, in particular to a flexible circuit board automatic visual detection device with a drive assembly provided with the drive assembly.

Background

The lead screw is an important component for driving an object to move linearly, and is widely applied to various mechanical devices. However, in the prior art, the problems of axial deviation and the like easily occur when the screw rod assembly is connected with the motor, the response is not fast enough, the driving effect is not ideal enough, the accuracy is low, and the production requirement which is improved gradually cannot be met.

Disclosure of Invention

In view of this, the present invention provides a driving assembly with fast response, good driving effect and high accuracy.

Another object of the present invention is to provide an automatic visual inspection device for a flexible circuit board having the above driving assembly.

In order to achieve the purpose, the invention adopts the following technical scheme:

the driving assembly according to the embodiment of the invention is used for driving a driven object to perform linear motion, and comprises:

the mounting seat comprises a first mounting plate and a second mounting plate which are arranged at intervals in the vertical direction, a first mounting hole is formed in the first mounting plate, a second mounting hole is formed in the second mounting plate, and the axle center positions of the first mounting hole and the second mounting hole are located on the same horizontal line;

the motor is positioned on one side of the mounting seat, and an output shaft of the motor passes through the first mounting hole;

and the screw rod assembly is positioned on the other side of the mounting seat, and one end of the screw rod assembly passes through the second mounting hole and is connected with the output shaft of the motor.

The drive assembly according to an embodiment of the present invention further includes:

the shaft coupling, the shaft coupling set up in inside being located of mount pad first mounting panel with between the second mounting panel, lead screw assembly with the motor passes through the coupling joint.

Further, the lead screw assembly includes:

one end of the screw rod is connected with an output shaft of the motor through the second mounting hole;

the screw nut is sleeved on the screw rod;

the screw nut is fixed on the nut fixing seat, and the nut fixing seat is used for limiting the rotation of the screw nut.

Still further, a drive assembly according to an embodiment of the present invention further includes:

the bearing is arranged in the second mounting hole, and one end of the screw rod penetrates through the bearing;

the adjusting ring for the bearing is connected to the second mounting plate and close to one side end face of the first mounting plate, and is used for limiting the axial displacement of the bearing.

and the bearing stop block is connected to one side end face, far away from the first mounting plate, of the second mounting plate and used for limiting the axial displacement of the bearing from two ends respectively with the adjusting ring for the bearing.

Further, the driving assembly according to the embodiment of the present invention further includes:

and the locking nut is sleeved on the screw rod and is positioned between the second mounting plate and the coupler.

the center of the fixed block is provided with a groove, and the fixed block is used for connecting the driven object;

a fixed bearing, a clamp spring groove is arranged on the outer side of the fixed bearing, the fixed bearing is clamped in the groove through a clamp spring arranged in the clamp spring groove,

one end of the screw rod, which is far away from the mounting seat, is arranged in the fixed bearing in a penetrating way.

the stop block is sleeved on the outer side of the screw rod and located between the nut fixing seat and the mounting seat and used for limiting the displacement of the nut fixing seat in the axial direction.

and one of the two pressing blocks is connected to the fixed block and close to one side end face of the nut fixing seat, the other pressing block is connected to the stop block and close to one side end face of the nut fixing seat, and the two pressing blocks are polyurethane parts.

In addition, the invention also provides an automatic visual detection device for the flexible circuit board, which comprises the driving assembly in any embodiment of the invention.

The technical scheme of the invention at least has one of the following beneficial effects:

according to the driving assembly provided by the embodiment of the invention, the motor is connected with the lead screw assembly through the same mounting seat, so that the lead screw assembly is quick in response when the motor is started, and the integral driving effect is improved;

furthermore, by arranging the screw nut and the locking nut, the axial deviation of the screw assembly is prevented, and the integral accuracy of the driving assembly is improved.

Drawings

FIG. 1 is a schematic structural diagram of a driving assembly according to an embodiment of the present invention;

FIG. 2 is a schematic view of a drive assembly installation according to an embodiment of the present invention;

fig. 3 is a schematic view of the installation positions of the driving assembly and the orthogonal module according to the embodiment of the invention.

Reference numerals:

2001. a mounting seat; 2002. a first mounting plate; 2003. a second mounting plate; 2004. a motor; 2005. a coupling; 2006. a screw rod; 2007. a lead screw nut; 2008. a nut fixing seat; 2009. a bearing; 2010. an adjusting ring for a bearing; 2011. a bearing stop; 2012. locking the nut; 2013. a fixed block; 2014. fixing the bearing; 2015. a clamp spring groove; 2016. a clamp spring; 2017. a first mounting hole; 2018. a second mounting hole; 2019. a stopper; 2020. a compression block; 3001. a camera mount; 3002. a first mounting seat; 3003. a second mounting seat; 3004. a camera chassis; 3005. an optical lens; 3006. a first regulating block; 3007. a first boss portion; 3013. fastening screws; 3014. mounting holes; 3015. an adjustment hole; 3016. a second boss portion; 3018. a third threaded hole; 3019. a camera; camera support 4013.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.

The following describes the driving assembly and the automatic visual inspection device for the flexible circuit board according to the embodiment of the invention with reference to the accompanying drawings.

The automatic visual detection device for the flexible circuit board comprises a driving assembly.

The following description of the drive assembly is made with reference to fig. 1-2.

As shown in fig. 1 to 2, a driving assembly according to an embodiment of the present invention for driving a driven object to perform a linear motion includes a mounting base 2001, a motor 2004, and a screw assembly.

The mounting base 2001 comprises a first mounting plate 2002 and a second mounting plate 2003 which are vertically arranged at intervals, a first mounting hole 2017 is formed in the first mounting plate 2002, a second mounting hole 2018 is formed in the second mounting plate 2003, and the axle center positions of the first mounting hole 2017 and the second mounting hole 2018 are located on the same horizontal line. That is, the first mounting holes 2017 on the first mounting plate 2002 and the second mounting holes 2018 on the second mounting plate enable coaxial mounting.

The motor 2004 is located on one side (right side as viewed in fig. 1) of the mount 2001, and the output shaft of the motor 2004 passes through the first mounting hole 2017, i.e., the output shaft of the motor 2004 passes through the first mounting hole 2017 and is located between the first mounting plate 2002 and the second mounting plate 2003 of the mount 2001.

The lead screw assembly is located on the other side of the mounting base 2001, and one end of the lead screw assembly passes through the second mounting hole 2018 and is connected with the output shaft of the motor 2004.

That is, the screw assembly and the motor 2004 are respectively installed at two ends of the mounting base 2001, one end of the screw assembly passes through the second mounting hole 2018 and is located inside the mounting base 2001, and the output shaft of the motor 2004 passes through the first mounting hole 2017 and is also located inside the mounting base 2001, so that the output shaft of the motor 2004 is directly connected with the screw assembly. When the motor 2004 is started, the output shaft of the motor directly drives the screw rod assembly to quickly convert the generated rotary motion into linear motion, and the driven object is driven to do linear motion in time, so that a good driving effect is achieved.

The drive assembly according to an embodiment of the present invention, as shown in fig. 1-2, further includes a coupling 2005. The coupling 2005 is provided inside the mount 2001 and located between the first mounting plate 2002 and the second mounting plate 2003, and the screw assembly and the motor 2004 are connected by the coupling 2005. The coupler 2005 is arranged in the mounting seat 2001, so that the screw rod assembly and the motor 2004 are connected together through the coupler 2005, when the motor 2004 operates to drive the screw rod assembly to operate, axial deviation can be prevented, accuracy is improved, and meanwhile, buffering performance and safety are provided for a driving process.

Further, the lead screw assembly includes a lead screw 2006, a lead screw nut 2007 and a nut fixing seat 2008.

One end of the screw rod 2006 is connected with the output shaft of the motor 2004 through a second mounting hole 2018.

The lead screw nut 2007 is sleeved on the lead screw 2006, the lead screw nut 2007 is fixed on the nut fixing seat 2008, and the nut fixing seat 2008 is used for limiting the lead screw nut 2007 to rotate. A lead screw nut 2007 is fitted over the lead screw 2006, and a nut holder 2008 is provided to restrict the lead screw nut 2007 from rotating along with the lead screw 2006, thereby reliably converting the rotational motion into the linear motion.

Still further, a drive assembly according to an embodiment of the present invention, as shown in fig. 1-2, further includes a bearing 2009. The bearing 2009 is disposed in the second mounting hole 2018, and one end of the screw 2006 penetrates through the bearing 2009. A bearing 2009 is arranged in the second mounting hole 2018, one end of the screw rod 2006 is connected with the input end of the motor 2004 through the bearing 2009, and friction is reduced when the screw rod 2006 is driven to run due to the arrangement, so that the rotation precision is guaranteed.

Still further, the drive assembly according to an embodiment of the present invention, as shown in fig. 1-2, further includes an adjustment ring 2010 for a bearing. The bearing adjustment ring 2010 is attached to an end surface of the second mounting plate 2003 on the side close to the first mounting plate 2002, and limits the axial displacement of the bearing 2009. The bearing adjusting ring 2010 is arranged in the mounting seat 2001 and close to the second mounting plate 2003, so that the bearing 2009 in the second mounting hole 2018 can be prevented from generating axial displacement due to the driving operation of the screw rod 2006, and the overall stability and accuracy of the driving assembly are improved.

Further, the driving assembly according to the embodiment of the present invention, as shown in fig. 1 to 2, further includes a bearing stopper 2011. The bearing stopper 2011 is connected to an end surface of the second mounting plate 2003 on the side away from the first mounting plate 2002, and is configured to limit axial displacement of the bearing 2009 from both ends thereof with the bearing adjustment ring 2010 for the bearing 2009. A bearing stop 2011 is arranged at one end, close to the nut fixing seat 2008, of the bearing 2009 and is matched with the adjusting ring 2010 for the bearing to limit the bearing 2009 together, so that the bearing 2009 is prevented from generating axial displacement, and the overall stability and accuracy of the driving assembly are further improved.

Further, the driving assembly according to the embodiment of the present invention, as shown in fig. 1-2, further includes a lock nut 2012. The locking nut 2012 is sleeved on the screw rod 2006 and is located between the second mounting plate 2003 and the coupling 2005. The locking nut 2012 is sleeved on the lead screw 2006 to ensure that the lead screw 2006 cannot be separated from the mounting seat 2001 in motion, the tight connection between the lead screw 2006 and the output shaft of the motor 2004 is ensured, and the stability in the driving process is improved.

Further, the driving assembly according to the embodiment of the present invention, as shown in fig. 1-2, further includes a fixing block 2013 and a fixing bearing 2014.

The fixed block 2013 is centrally provided with a groove, and the fixed block 2013 is used for connecting a driven object.

The fixed bearing 2014 outside is equipped with jump ring groove 2015, and fixed bearing 2014 is established in the recess through the jump ring 2016 card that sets up in jump ring groove 2015, and the one end of keeping away from mount pad 2001 of lead screw 2006 is worn to establish in fixed bearing 2014.

The fixed bearing 2014 is clamped in the fixed block 2013 through the clamp spring 2016, one end of the screw rod 2006, which is far away from the mounting seat 2001, penetrates through the fixed bearing 2014, and one end of the screw rod 2006 is connected with the fixed block 2013. When the screw rod assembly is driven by the motor 2004, the screw rod 2006 is connected with the fixing block 2013 so as to drive the driven object to perform linear motion, and the fixed bearing 2014 can reduce the friction force in the linear motion and reduce the abrasion.

Still further, a drive assembly according to an embodiment of the present invention further includes a stop 2019. The stop 2019 is sleeved on the outer side of the screw rod 2006, and the stop 2019 is located between the nut fixing seat 2008 and the mounting seat 2001 and used for limiting the displacement of the nut fixing seat 2008 in the axial direction. When the screw assembly is driven, the nut fixing seat 2008 can be prevented from displacing in the axial direction by arranging the stop 2019 on the screw rod 2006, and stability and accuracy of the screw assembly during operation are improved.

Further, the driving assembly according to the embodiment of the present invention further includes two compression blocks 2020. One of them compact heap 2020 is connected and is close to nut fixing base 2008 a side end face at fixed block 2013, and another compact heap 2020 is connected and is close to nut fixing base 2008 a side end face at dog 2019, and two compact heaps 2020 are the polyurethane finished piece. Polyurethane has advantages such as resistance to wears, resistant inflection, and compact heap 2020 has promoted life for the polyurethane finished piece when playing the effect of compressing tightly fixed block 2013 and dog 2019.

Furthermore, the method is simple. The invention also provides an automatic visual detection device for the flexible circuit board, which comprises one or more driving components. The orthogonal module is used as a part of the automatic visual inspection device for the flexible circuit board, and fig. 3 shows a schematic position diagram of three driving assemblies installed on the orthogonal module, which are respectively used for driving the detected object to move on an X axis, a Y axis and a Z axis.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A drive assembly for driving a driven object in linear motion, comprising:

the mounting seat (2001) comprises a first mounting plate (2002) and a second mounting plate (2003) which are arranged in a vertically spaced mode, a first mounting hole (2017) is formed in the first mounting plate (2002), a second mounting hole (2018) is formed in the second mounting plate (2003), and the axle centers of the first mounting hole (2017) and the second mounting hole (2018) are located on the same horizontal line;

a motor (2004), wherein the motor (2004) is positioned at one side of the mounting seat (2001), and an output shaft of the motor (2004) passes through the first mounting hole (2017);

a screw assembly located at the other side of the mounting base (2001) and having one end passing through the second mounting hole (2018) and connected to an output shaft of the motor (2004), wherein,

the lead screw subassembly includes:

one end of the screw rod (2006) is connected with the output shaft of the motor (2004) through the second mounting hole (2018);

the lead screw nut (2007), the lead screw nut (2007) is sleeved on the lead screw (2006);

a nut fixing seat (2008), the lead screw nut (2007) being fixed on the nut fixing seat (2008), the nut fixing seat (2008) being used for limiting the lead screw nut (2007) to rotate;

the fixing block (2013), a groove is formed in the center of the fixing block (2013), and the fixing block (2013) is used for connecting the driven object;

the fixed bearing (2014), the fixed bearing (2014) outside is equipped with jump ring groove (2015), fixed bearing (2014) are established through setting up jump ring (2016) card in jump ring groove (2015) in the recess,

wherein, the one end of lead screw (2006) far away from mount pad (2001) is worn to establish in fixed bearing (2014).

2. The drive assembly of claim 1, further comprising:

and a coupling (2005) which is provided inside the mounting base (2001) and is located between the first mounting plate (2002) and the second mounting plate (2003), wherein the screw assembly and the motor (2004) are connected through the coupling (2005).

3. The drive assembly of claim 1, further comprising:

a bearing (2009), wherein the bearing (2009) is arranged in the second mounting hole (2018), and one end of the screw rod (2006) penetrates through the bearing (2009);

and a bearing adjustment ring (2010) connected to an end surface of the second mounting plate (2003) on the side close to the first mounting plate (2002) for restricting axial displacement of the bearing (2009).

4. The drive assembly of claim 3, further comprising:

and the bearing stop block (2011) is connected to one side end face, far away from the first mounting plate (2002), of the second mounting plate (2003) and used for limiting the axial displacement of the bearing (2009) from two ends respectively with the bearing adjusting ring (2010).

5. The drive assembly of claim 2, further comprising:

the locking nut (2012) is sleeved on the screw rod (2006) and is positioned between the second mounting plate (2003) and the coupler (2005).

6. The drive assembly of claim 1, further comprising:

the stop block (2019) is sleeved on the outer side of the screw rod (2006) and the stop block (2019) is located between the nut fixing seat (2008) and the mounting seat (2001) and used for limiting the displacement of the nut fixing seat (2008) in the axial direction.

7. The drive assembly of claim 6, further comprising:

the nut fixing seat (2008) side end face of the fixing block (2013) is connected to one of the two pressing blocks (2020), the other pressing block (2020) is connected to the stop block (2019) side end face of the stop block (2008) close to the nut fixing seat, and the two pressing blocks (2020) are made of polyurethane.

8. An automated visual inspection apparatus for flexible circuit boards, comprising a drive assembly according to any one of claims 1 to 7.