CN112108579B

CN112108579B - Combined instrument mounting fixture and assembling equipment

Info

Publication number: CN112108579B
Application number: CN202010779670.3A
Authority: CN
Inventors: 柯丽燕; 刘金平; 程锐; 李健; 李应超; 陈振红
Original assignee: Dongfeng Electric Drive Systems Co Ltd
Current assignee: Dongfeng Electric Drive Systems Co Ltd
Priority date: 2020-08-05
Filing date: 2020-08-05
Publication date: 2022-07-15
Anticipated expiration: 2040-08-05
Also published as: CN112108579A

Abstract

A kind of modular instrument mounting fixture and rigging equipment, involve the assembly field of the commercial vehicle instrument panel, the said mounting fixture includes base plate, lower carrier plate and upload the board, download the board to set up on the base plate, upload the carrier plate and connect with base plate articularly, upload carrier plate and download board and cooperate and finish the installation of the modular instrument while being open and shut; the upper loading plate is provided with at least two positioning pins, and the positioning pins are used for positioning the PCB; the locking mechanism is provided with a plurality of fixing mechanisms for fixing the PCB positioned by the positioning pins, and the locking mechanism fixes the outer edge of the PCB; the bending mechanism comprises a bending driving piece and a bending piece; the bending driving part is fixed on the upper support plate and drives the bending part to abut against the metal pin of the TFT so that the metal pin of the TFT screen is bent by 90 degrees and fixed with the PCB; by adopting the technical scheme, the device damage caused by bending the metal pins by using the pliers during manual assembly of the TFT screen is eliminated, and the assembly reject ratio caused by manual bending which is not in place is reduced.

Description

Combined instrument mounting fixture and assembling equipment

Technical Field

The invention relates to the field of assembly of instrument panels of commercial vehicles, in particular to a combined instrument mounting clamp and assembly equipment provided with the same.

Background

The parts in the D560 instrument panel in the early development stage are nonstandard parts, the structural design is complex, and the manual assembly mode is mostly adopted.

Referring to fig. 1-2, the specific assembly process is that, firstly, a 5-inch TFT screen 200 is mounted on a corresponding position on a PCB 100, so that four metal pins 201 of the TFT screen 200 penetrate through corresponding mounting holes on the PCB 100, and then the metal pins 201 are manually bent by 90 ° through pliers, so as to fix the TFT screen 200 on the PCB 100; the holder 300 is then manually press-snap fitted to the PCB board 100 and finally the scale 400 with the adhesive is adhered to the holder 300.

The manual assembly of this process has many problems, the most prominent of which are: 1) when the four metal pins 201 of the TFT screen 200 are manually bent by using a pair of pliers, the bending angle is insufficient, and 90-degree bending cannot be guaranteed, so that the TFT screen 200 and the PCB 100 are not firmly fixed and loose; 2) when the pliers are used for operation, the pliers are very easy to knock on components on the PCB 100 to cause circuit damage; 3) manual assembly is inefficient.

Therefore, how to improve productivity while avoiding the above problems is a direction of continuous development by engineers.

Disclosure of Invention

Aiming at the problems, the invention designs the mounting clamp for the instrument combination, and the current manual bending mode is replaced by the mode of automatically bending the metal pins, so that the aims of reducing the manual operation difficulty and improving the product yield are fulfilled.

The technical scheme provided by the invention is as follows:

a combined instrument mounting fixture comprises a base plate, a lower carrier plate and an upper carrier plate, wherein the lower carrier plate is arranged on the base plate, the upper carrier plate is hinged with the base plate, and the upper carrier plate and the lower carrier plate are in open-close matching to complete mounting of a combined instrument; the upper carrier plate is provided with

The number of the positioning pins is at least two, and the positioning pins are used for positioning the PCB;

the locking mechanism is provided with a plurality of fixing mechanisms for fixing the PCB positioned by the positioning pins, and the locking mechanism is used for fixing the outer edge of the PCB; and

the bending mechanism comprises a bending driving piece and a bending piece; the bending driving part is fixed on the upper support plate, and the bending driving part drives the bending part to abut against the metal pin of the TFT so that the metal pin of the TFT screen is bent by 90 degrees and fixed with the PCB.

Furthermore, the upper carrier plate is also provided with a plurality of supporting pins which are distributed at intervals and used for supporting the PCB.

Furthermore, locking mechanical system includes locking piece and locking piece driving piece, the locking piece driving piece is fixed on the upper support plate, locking piece driving piece drive locking piece rectilinear concertina movement is fixed or is loosened the outward flange of PCB board.

Furthermore, a contact sensor is further arranged on the upper support plate and used for monitoring whether the PCB is located on the upper support plate.

Further, the base is further provided with a vertical supporting seat, when the upper carrier plate is opened relative to the lower carrier plate, the supporting seat supports the upper carrier plate, so that the opening and closing angle of the upper carrier plate relative to the lower carrier plate is not larger than 150 degrees.

Furthermore, the support seat comprises two vertical plates arranged at intervals and a baffle connected with the two vertical plates, and the two vertical plates are fixed on the substrate; the baffle is arranged in an inclined way relative to the substrate and the inclined angle is 30-60 degrees.

Furthermore, a locking plate is arranged on the upper loading plate; the baffle plate is provided with a first locking device corresponding to the locking plate; the first locking device locks the locking plate to fix the upper support plate and the baffle plate.

Furthermore, a second locking device corresponding to the locking plate is arranged on the lower loading plate; and the second locking device locks the locking plate to ensure that the upper carrier plate is attached and fixed with the lower carrier plate.

Furthermore, a jacking piece for jacking the lower carrier plate is arranged on the base plate; the jacking piece is fixed on the lower end face of the base plate, and jacks the lower support plate to enable the lower support plate to move up and down.

The technical scheme has the following beneficial effects:

1. manual operation is changed into automatic operation in the bending operation, the reliability of the product quality is guaranteed, the labor cost is reduced, the production efficiency is improved, the production rhythm is improved to 1.5 min/piece from the original bottleneck process of 6 min/piece, and the original two-person operation is changed into one-person operation.

2. The device damage caused by bending the metal pins by pliers when the TFT screen is manually assembled is eliminated, and the assembly reject ratio caused by the manual bending is reduced.

The invention also provides assembly equipment which comprises a rack, an electrical system and an industrial PLC system, wherein the electrical system and the industrial PLC system are fixed in the rack, and the rack is also provided with the combined instrument mounting clamp.

Through setting up combination meter sectional fixture on rigging equipment, make whole rigging equipment when according with the assembly requirement more, further improvement assembly efficiency.

Drawings

Fig. 1 is an exploded view of an instrument panel.

Fig. 2 is a back structure diagram of four metal pins of the TFT screen passing through the PCB.

Fig. 3 is a perspective view of the overall structure of the modular fixture, showing the components of the modular fixture.

Fig. 4 is a partially enlarged view of fig. 3, showing the structure of the locking mechanism.

Fig. 5 is an overall perspective view of the lock mechanism.

Fig. 6 is an overall perspective view of the modular fixture showing the support base structure.

Fig. 7 is a partial enlarged view of fig. 6 showing the structure of the locking plate.

The locking device comprises a substrate 10, a second locking device 11, a lower carrier plate 20, an upper carrier plate 30, a positioning pin 31, a locking block 32, a bending piece 33, a limiting block 34, a supporting pin 35, a contact sensor 36, a locking plate 37, a supporting seat 40, a vertical plate 41, a baffle 42, a first locking device 43, a PCB 100, a TFT screen 200, a metal pin 201, a support 300, a body 331, a bending piece 332, a first locking hole 371, a second locking hole 372 and a dial 400.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth to illustrate, but are not to be construed to limit the scope of the invention.

The present embodiment provides a combination meter mounting jig, referring to fig. 3-4, the mounting jig comprises a base plate 10, a lower loading plate 20 and an upper loading plate 30, wherein the base plate 10 is used for providing a mounting plane for the lower loading plate 20 and the upper loading plate 30 and providing sufficient supporting force for the lower loading plate 20 and the upper loading plate 30; specifically, the lower carrier plate 20 is disposed on the substrate 10, and the upper carrier plate 30 is hinged to the substrate 10; the hinged connection is that one end of the upper carrier plate 30 is rotatably connected to the base plate 10, so that the upper carrier plate 30 is in open-close fit with the lower carrier plate 20 during the rotation process to complete the installation of the combination meter.

When the mounting fixture is used for mounting the instrument panel, the PCB 100 needs to be mounted on the upper carrier plate 30, and in this embodiment, the structure of the upper carrier plate 30 is further optimized, that is, at least two positioning pins 31 are arranged on the upper carrier plate 30, and the positioning pins 31 are matched with the positioning holes on the PCB 100, so as to position the PCB 100.

In this embodiment, the number of the positioning pins 31 is four, and the four positioning pins 31 are fixed on the upper carrier 30 and correspond to the positioning holes on the PCB 100.

After the positioning is completed, in order to avoid the PCB 100 falling down during the process of opening and closing the upper carrier board 30 and the lower carrier board 20, the present embodiment locks the positioned PCB 100 by using a locking mechanism to ensure the stability thereof.

Of course, considering that the locking mechanism needs to be in contact with the PCB 100 when locking, but electronic components on the PCB 100 are mostly precise components, so to avoid damage to the precise components caused by the locking mechanism, the locking mechanism is disposed at the outer periphery of the PCB 100, so that when locking is performed, the locking mechanism fixes the outer edge of the PCB 100, thereby avoiding the possibility that the locking mechanism touches the precise components.

Specifically, the locking mechanism includes a locking piece 32 and a locking piece driving member, the locking piece driving member is fixed on the upper carrier plate 30, and the locking piece driving member drives the locking piece 32 to perform linear telescopic motion to fix or loosen the outer edge of the PCB.

In this embodiment, the locking piece driving member is a driving motor, the driving motor is disposed on the back of the upper carrier plate 30, the locking piece 32 is fixed on a slider connected to the driving motor through a supporting block, and the rotation of the driving motor drives the slider to slide back and forth, so that the locking piece 32 locks or unlocks the edge of the upper carrier plate 30.

Meanwhile, in order to realize the bending of the metal pins 201 of the TFT screen 200, an automatic bending mode is used to replace the conventional manual bending mode, and a bending mechanism is disposed on the upper carrier plate 30.

Specifically, the bending mechanism comprises a bending driving piece and a bending piece 33; the bending driving member is fixed on the back of the upper carrier plate 30, and the bending driving member drives the bending member 33 to abut against the metal leg 201 of the TFT screen 200, so that the bending member bends 90 degrees and is fixed with the PCB 100.

Referring to fig. 5, the bending member 33 includes a body 331 having a cylindrical structure and a bending tab 332 disposed on the body 331, the bending tab 332 is designed to have an arc structure, an outer circumferential surface of the bending tab 332 is coplanar with an outer circumferential surface of the body 331, the body 331 is configured to be fixedly connected with the bending driving member to realize force transmission, and rotation of the body 331 causes the bending tab 332 to act on the metal leg 201 of the TFT panel 200 to bend 90 ° thereof to be fixed with the PCB 100.

In this embodiment, the bending driving member is a driving motor, the body 331 is sleeved on an output shaft of the driving motor, and the rotation of the driving motor drives the bending piece 332 to bend the metal pins 201 of the TFT screen 200.

Optionally, referring to fig. 4, a limit block 34 is disposed beside the bending mechanism, where the limit block is used to limit a rotation angle of the bending piece 332, so as to avoid that the static position of the bending piece 332 cannot be determined because the driving motor stops too soon and thus the TFT screen 200 may interfere with the metal leg 201 during installation, which may affect normal installation of the TFT screen 200; the rotation range of the bending piece 332 is ensured to be in a specified area through the stopper 34, so that the TFT panel 200 is quickly mounted.

Optionally, in order to avoid the PCB 100 from being completely attached to the upper carrier 30 when being positioned and mounted with the upper carrier 30, thereby affecting the precision components on the PCB 100, a plurality of support pins 35 are further disposed on the upper carrier 30, and a plurality of support pins 35 are spaced apart for supporting the PCB 100, wherein the support pins 35 are fixed on the upper carrier 30 and correspond to the blank positions on the PCB 100, so that the support pins 35 will not affect the precision components attached to the PCB 100 when the PCB 100 is supported by the support pins 35.

During specific installation, the PCB 100 provided with the TFT screen 200 corresponds to the positioning pin 31, the positioning pin 31 is inserted into a positioning hole in the PCB 100 to realize positioning, the PCB 100 is pressed by applying force to enable the PCB 100 to be attached to the supporting pin 35, and the supporting pin 35 forms powerful support for the PCB 100; then the locking mechanism is activated to move the locking block 32 to lock the edge of the PCB 100, thereby forming a complete location of the PCB 100 on the upper carrier plate 30; and finally, starting the bending mechanism to enable the bending piece 332 to abut against and act on the metal leg 201 of the TFT screen 200 and bend the metal leg 201, so that the metal leg is bent by 90 degrees to complete the fixation of the TFT screen 200 and the PCB 100, and then pressing, buckling and assembling the support 300 on the PCB 100 after the fixation is completed.

In this embodiment, referring to fig. 3, a contact sensor 36 is further disposed on the upper carrier plate 30, and the contact sensor 36 is used for monitoring whether the PCB 100 is located on the upper carrier plate 30, in the above-mentioned mounting step, the action of the locking mechanism may be performed according to a signal of the contact sensor 36, that is, after the contact sensor 36 sends a signal of being in place, the locking mechanism starts to act, and then the bending mechanism performs the next operation.

Optionally, referring to fig. 6-7, a vertical supporting seat 40 is further disposed on the substrate 10, and when the upper carrier plate 30 is opened relative to the lower carrier plate 20, the supporting seat 40 supports the upper carrier plate 30, so that an opening and closing angle of the upper carrier plate 30 relative to the lower carrier plate 20 is not greater than 150 °.

The supporting seat 40 is provided to avoid an excessively large opening angle of the upper carrier plate 30 with respect to the lower carrier plate 20, and to avoid damage to the substrate 10 due to the contact of the driving motor and other components mounted on the back surface of the upper carrier plate 30, the supporting seat 40 is used to make the upper carrier plate 30 in an inclined state when in an open state, and the back surface of the upper carrier plate 30 is in a suspended state, so as to protect the driving motor to a certain extent; meanwhile, the upper loading plate 30 in the inclined state is opened, which is more convenient for the operation of the operator, and the PCB 100 is more conveniently mounted on the upper loading plate 30, which conforms to the operation habit.

Specifically, the support seat 40 includes two vertical plates 41 arranged at intervals and a baffle 42 connected with the two vertical plates, and the two vertical plates 41 are fixed on the substrate 10; the baffle 42 is disposed to be inclined with respect to the substrate 10 at an angle of 30 to 60 °.

The opened upper carrier plate 30 will abut against the blocking plate 42 to ensure the tilting state of the upper carrier plate 30.

In this embodiment, in order to ensure the stability when the upper carrier plate 30 is attached to the baffle plate 42, a first locking device 43 is disposed on the baffle plate 42 to lock the upper carrier plate 30, specifically, a locking piece 37 is disposed on the upper carrier plate 30, the position of the locking piece 37 on the upper carrier plate 30 corresponds to the first locking device 43, and when the upper carrier plate 30 is opened and attached to the baffle plate 42, the locking piece 37 is located in the first locking device 43.

The first locking device 43 here includes a lock slot corresponding to the lock plate 37 and a locking cylinder, when the upper loading plate 30 is opened to fit with the baffle plate 42, the lock plate 37 is located in the lock slot, and then the locking cylinder is started, and the locking cylinder abuts against the lock plate 37 located in the lock slot, thereby locking the lock plate and fixing the upper loading plate 30.

Similarly, in order to ensure the stability when the upper carrier plate 30 and the lower carrier plate 20 are attached to each other, a second locking device 11 is disposed on the lower carrier plate 20; the second locking device 11 is of the same construction as the first locking device 43.

In order to make the locking plate 37 on the upper plate 30 adapt to the first locking device 43 and the second locking device 11 simultaneously, the locking plate 37 of the present embodiment is provided with a first locking hole 371 matched with the first locking device 43 and a second locking hole 372 matched with the second locking device 11; the locking cylinder in the first locking device 43 extends out to realize the matching locking with the first locking hole 371; the locking cylinder of the second locking device 11 extends out to realize the matching locking with the second locking hole 372.

The lower carrier plate 20 in this embodiment is used to adhere the dial 400 to the bracket 300, that is, after the PCB 100, the TFT panel 200 and the bracket 300 are sequentially assembled on the upper carrier plate 30, the upper carrier plate 30 and the lower carrier plate 20 need to be attached to each other, so that the dial 400 on the lower carrier plate 20 is adhered to the bracket 300, thereby completing the installation of the dashboard.

In order to ensure that the dials 400 are perfectly adhered to the support 300, the lower carrier plate 20 is movable up and down with respect to the base plate 10, and it is understood that when the upper carrier plate 30 and the lower carrier plate 20 approach to a fitted state, the lower carrier plate 20 is further moved up, so that the dials 400 on the lower carrier plate 20 are adhered to the support 300 mounted on the upper carrier plate 30.

In this embodiment, the up-and-down movement of the lower carrier plate 20 is accomplished by a jacking member, the jacking member is fixed on the lower end surface of the base plate 10, and the jacking member jacks the lower carrier plate 20 to move up and down.

Specifically, the jacking piece that this embodiment adopted is the jacking cylinder, and lower carrier plate 20 is fixed with the telescopic shaft of jacking cylinder, and the up-and-down movement of lower carrier plate 20 is realized to the concertina movement of jacking cylinder.

Optionally, a sensor is disposed at a position of the substrate 10 close to the lower carrier 20, the sensor is configured to sense whether the upper carrier 30 is in a state of approaching to the lower carrier 20, and when the upper carrier 30 is about to be attached to the lower carrier 20, the sensor senses the upper carrier 30 and sends a sensing signal to prompt the jacking cylinder to move, so that the dial 400 is attached to the support 300 after the lower carrier 20 moves upward.

The invention also provides an assembling device provided with the combined instrument clamp, which comprises a rack, an electrical system and an industrial PLC system, wherein the electrical system and the industrial PLC system are arranged on the rack, and the combined instrument clamp, the electrical system and the industrial PLC system are mutually matched to realize the combined installation and detection of the instrument panel.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A mounting clamp for a combination instrument comprises a base plate (10), a lower carrier plate (20) and an upper carrier plate (30), wherein the lower carrier plate (20) is arranged on the base plate (10), the upper carrier plate (30) is hinged with the base plate (10), and the upper carrier plate (30) is matched with the lower carrier plate (20) in an opening and closing manner to complete mounting of the combination instrument; characterized in that the upper carrier plate (30) is provided with

A contact sensor (36), the contact sensor (36) for monitoring whether a PCB board (100) is located on the upper carrier board (30);

the number of the positioning pins (31) is at least two, and the positioning pins (31) are used for positioning the PCB (100); the upper carrier plate (30) is also provided with a plurality of supporting pins (35), and the plurality of supporting pins (35) are distributed at intervals and used for supporting the PCB (100);

a locking mechanism provided with a plurality of pins for fixing the PCB (100) positioned by the positioning pins (31), the locking mechanism fixing the outer edge of the PCB (100); and

the bending mechanism comprises a bending driving piece and a bending piece (33); the bending driving piece is fixed on the upper support plate (30), the bending piece (33) comprises a body (331) with a cylindrical structure and a bending piece (332) arranged on the body (331), the bending piece (332) is designed into an arc structure, the outer circular surface of the bending piece (332) is coplanar with the outer circular surface of the body (331), the body (331) is used for being fixedly connected with the bending driving piece to realize force transmission, and the bending piece (332) is enabled to act on a metal pin (201) of the TFT screen (200) by rotation of the body (331) to be bent for 90 degrees and fixed with the PCB (100).

2. The cluster tool mounting fixture of claim 1, wherein the locking mechanism comprises a locking piece (32) and a locking piece driving piece, the locking piece driving piece is fixed on the upper carrier plate (30), and the locking piece driving piece drives the locking piece (32) to linearly and telescopically move to fix or release the outer edge of the PCB (100).

3. The cluster tool mounting fixture according to claim 1 or 2, wherein the base plate (10) is further provided with a vertical support seat (40), and when the upper carrier plate (30) is opened relative to the lower carrier plate (20), the support seat (40) supports the upper carrier plate (30) so that the opening and closing angle of the upper carrier plate (30) relative to the lower carrier plate (20) is not more than 150 °.

4. The combination meter mounting fixture according to claim 3, wherein the supporting base (40) comprises two vertical plates (41) arranged at intervals and a baffle (42) connected with the two vertical plates (41), and the two vertical plates (41) are fixed on the base plate (10); the baffle (42) is arranged in an inclined manner relative to the substrate (10) and the inclined angle is 30-60 degrees.

5. The cluster tool mounting fixture according to claim 4, wherein the upper carrier plate (30) is provided with a locking piece (37); the baffle (42) is provided with a first locking device (43) corresponding to the locking plate (37); the first locking device (43) locks the locking piece (37) to fix the upper carrier plate (30) and the baffle plate (42).

6. A cluster tool mounting fixture according to claim 5, characterised in that the lower carrier plate (20) is provided with second locking means (11) corresponding to the locking tab (37); the second locking device (11) locks the locking piece (37) to enable the upper carrier plate (30) and the lower carrier plate (20) to be attached and fixed.

7. The cluster mounting fixture of claim 6, wherein the base plate (10) is provided with a jacking member for jacking the lower carrier plate (20); the jacking piece is fixed on the lower end face of the base plate (10), and the jacking piece jacks the lower support plate (20) to enable the lower support plate to move up and down.

8. An assembling apparatus comprising a frame, an electric system and an industrial PLC system fixed in the frame, wherein the frame is further provided with a cluster tool mounting jig according to claim 7.