CN118434117A - Mobile conveying track of chip mounter - Google Patents

Abstract

The application relates to a movable conveying track of a chip mounter, which comprises a rack, a middle rail mechanism, a front rail mechanism and a rear rail mechanism. According to the mobile conveying track, the front track mechanism, the middle track mechanism and the rear track mechanism are arranged to realize conveying of the PCB, the middle track mechanism is provided with the first conveying channel and the second conveying channel, and the front track module and the rear track module are only provided with one conveying channel for switching on the first conveying channel and the second conveying channel, namely, the two tracks on the middle track mechanism share the front track module and the rear track module, so that the production efficiency can be improved, the arrangement of the front track module and the rear track module is reduced, and the occupied space of the mobile conveying track is reduced. The width of first conveying channel and second conveying channel is adjusted through setting up first drive assembly and second drive assembly to the interval between the track of front rail module, back rail module is adjustable, in order to adapt to the width of first conveying channel and second conveying channel, thereby can adapt to the PCB board of different models.

Description

Mobile conveying track of chip mounter

Technical Field

The invention relates to the technical field of chip mounters, in particular to a mobile conveying track of a chip mounter.

Background

Chip mounter: also known as "placement machine" or "surface mount system" (Surface Mount System), in a production line, it is a device that accurately places surface mount components on PCB pads by moving a placement head after a dispenser or screen printer.

In the prior art, the patent number CN 205510576U is a double-track chip mounter device, which comprises a frame, wherein two supporting seat assemblies are arranged on the frame, and a group of tracks are arranged on the supporting seat assemblies; the track is provided with a conveying mechanism, a first driving mechanism, a first sensor and a second sensor; a top plate mechanism for supporting the circuit board when the circuit board reaches the mounting and attaching position is arranged below the track; the frame is also provided with a cross beam, and the cross beam is provided with two machine heads for mounting and attaching electronic elements and a control computer for controlling the working states of the first sensor, the second sensor, the first driving mechanism and the top plate mechanism. According to the technical scheme, the two groups of tracks which independently run are arranged, so that the aim of improving the production efficiency is fulfilled. However, the chip mounter is crowded in inner space caused by a rail-changeable mode, structural layout is performed in a limited space, design difficulty is greatly increased, particularly, a plurality of rails are moved under the condition of ensuring safety, and rail guide spacing is adjustable, so that diversified requirements of different technologies are met.

Disclosure of Invention

The invention aims to provide a movable conveying track of a chip mounter, which aims to solve the technical problem that the occupied space is overlarge due to the mode of realizing track change of the conveying track of the existing chip mounter.

In order to solve the above technical problem, a mobile conveying track of a chip mounter is provided, including:

The machine frame is provided with a first working area, a second working area and a third working area which are sequentially and adjacently arranged, wherein the first working area is set to be in an X-axis direction towards the second working area, and the vertical X-axis direction is set to be in a Y-axis direction;

The middle rail mechanism is arranged in the second working area and comprises a first driving assembly, a second driving assembly and two middle rail modules, wherein the two middle rail modules are respectively provided with a first conveying channel and a second conveying channel, each middle rail module comprises a first middle rail and a second middle rail, the first driving assembly and the second driving assembly are both arranged on the rack, the first driving assembly is connected with the first middle rail of one middle rail module to adjust the width of the first conveying channel, and the second driving assembly is connected with the first middle rail of the other middle rail module to adjust the width of the second conveying channel;

The front rail mechanism is arranged in the first working area and comprises a front rail module and a third driving assembly, the third driving assembly is connected with the frame, and the third driving assembly drives the front rail module to reciprocate along the Y-axis direction so as to switch between the first conveying channel and the second conveying channel;

The rear rail mechanism is arranged in the third working area and comprises a rear rail module, a fourth driving assembly and a fifth driving assembly, the fourth driving assembly and the fifth driving assembly are connected with the frame, the fourth driving assembly drives the rear rail module to reciprocate along the Y-axis direction so as to switch between the first conveying channel and the second conveying channel, the rear rail module comprises a first rear rail and a second rear rail, the fifth driving assembly is connected with the second rear rail, and the fifth driving assembly drives the second rear rail to move so as to adapt to the width of the first conveying channel or the second conveying channel;

the PCB passes through the first working area, the second working area and the third working area in sequence.

Further, the fourth driving assembly comprises a fourth driving motor, a fourth belt, a fourth clamping piece and a clamping assembly, wherein the fourth driving motor is coupled with the fourth belt, the fourth clamping piece is connected between the fourth belt and the first rear rail, and the clamping assembly is connected between the fourth belt and the fifth driving assembly.

Further, the clamping assembly comprises a driving belt wheel and two driven belt wheels, the fifth driving assembly comprises a mounting plate and a fifth driving motor, the fifth driving motor is connected with the driving belt wheel, and the driving belt wheel and the driven belt wheels are respectively abutted to two opposite sides of the fourth belt.

Further, the back rail module further comprises a third sliding rail, a third sliding block and a fixing plate, the third sliding rail is installed on the frame, the third sliding block is slidably installed on the third sliding rail, the first back rail and the second back rail are installed on the third sliding block through the fixing plate, and the third sliding rail is arranged along the Y-axis direction.

Further, the back rail mechanism further comprises a back rail conveying assembly, the back rail conveying assembly comprises a back rail conveying belt and a back rail motor, the back rail motor is connected with the back rail conveying belt, and the back rail motor drives the back rail conveying belt to move along the X-axis direction.

Further, the first driving assembly comprises a first driving motor, a first driving wheel, a first driven wheel and a first belt, the first driving motor is connected with the first driving wheel, the first driving wheel and the first driven wheel are respectively connected with the first belt in a coupling mode, the middle rail module further comprises a first screw rod and a first sliding block, the first screw rod is connected with the first driving wheel, and the first sliding block is connected with the first screw rod and one of the first middle rail modules in a first middle rail connection mode.

Further, the second driving assembly comprises a second driving motor, a second driving wheel, a second driven wheel and a second belt, the second driving motor is connected with the second driving wheel, the second driving wheel and the second driven wheel are respectively connected with the second belt in a coupling mode, the middle rail module further comprises a second screw rod and a second sliding block, the second screw rod is connected with the second driving wheel, and the second sliding block is connected with the second screw rod and the other middle rail module in a first middle rail connection mode.

Further, the middle rail mechanism further comprises a middle rail conveying assembly, the middle rail conveying assembly comprises a middle rail conveying belt and a middle rail motor, the middle rail motor is connected with the middle rail conveying belt, and the middle rail motor drives the middle rail conveying belt to move along the X-axis direction.

Further, the structure of the front rail mechanism is the same as that of the rear rail mechanism.

Further, the mobile conveying track further comprises a visual camera and a positioning hole group, the front track module comprises a first front track and a second front track, the first front track and the second front track are arranged in parallel, the first middle track and the second middle track are arranged in parallel, the first rear track and the second rear track are arranged in parallel, the first front track, the second front track, the first middle track, the second middle track, the first rear track and the second rear track are all provided with positioning hole groups, and the visual camera is matched with the positioning hole group to judge whether the tracks are parallel or not, and the positioning hole group on each track comprises at least two visual positioning holes.

The implementation of the embodiment of the invention has the following beneficial effects:

in one embodiment, the movable conveying track realizes the conveying of the PCB by arranging the front rail mechanism, the middle rail mechanism and the rear rail mechanism, the middle rail mechanism is provided with the first conveying channel and the second conveying channel, the front rail module and the rear rail module are only provided with one, and the front rail module and the rear rail module can reciprocate along the Y-axis direction so as to be switched on the first conveying channel and the second conveying channel, namely, the two tracks on the middle rail mechanism share one front rail module and one rear rail module, thereby improving the production efficiency, reducing the arrangement of the front rail module and the rear rail module and further reducing the occupied space of the movable conveying track;

In another embodiment, on the middle rail mechanism, a first driving component and a second driving component are arranged to drive a first middle rail on the two middle rail modules to move, so that the width of a first conveying channel and the width of a second conveying channel are adjusted, the distance between a first front rail and a second front rail are adjustable, and the distance between a first rear rail and a second rear rail are adjustable so as to adapt to the width of the first conveying channel and the width of the second conveying channel, and therefore the PCB with different models can be adapted;

In yet another embodiment, the first front rail, the second front rail, the first middle rail, the second middle rail, the first rear rail and the second rear rail are all provided with positioning hole groups, and the vision camera is matched with the positioning hole groups to judge whether the rails are parallel or not, so that the PCB board can be smoothly conveyed on the rails, and the situation that the two rails are not parallel due to the adjustment of the distance between the rails is avoided.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a top view of a moving conveying track of a chip mounter according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a moving conveying track of a chip mounter according to an embodiment of the present invention;

FIG. 3 is an enlarged schematic view of a portion of FIG. 1 at A;

FIG. 4 is a top view of a mid-rail mechanism according to an embodiment of the present invention;

fig. 5 is a schematic perspective view of a middle rail mechanism according to an embodiment of the present invention;

FIG. 6 is a schematic perspective view of a rear rail mechanism according to an embodiment of the present invention;

Fig. 7 is a schematic diagram of a combination of the clamp assembly, the fifth drive assembly, and the fourth belt.

Wherein: 100. moving the transfer rail; 110. a frame; 111. a first work area; 112. a second work area; 113. a third work area; 120. a middle rail mechanism; 121. a first drive assembly; 1211. a first driving motor; 1212. a first drive wheel; 1213. a first driven wheel; 1214. a first belt; 122. a second drive assembly; 1221. a second driving motor; 1222. a second driving wheel; 1223. a second driven wheel; 1224. a second belt; 123. a middle rail module; 1231. a first conveying path; 1232. a second conveying path; 1233. a first middle rail; 1234. a second middle rail; 1235. a first screw rod; 1236. a first slider; 1237. a second screw rod; 1238. a second slider; 124. a middle rail conveying assembly; 1241. a middle rail conveyer belt; 1242. a middle rail motor; 130. a front rail mechanism; 131. a front rail module; 1311. a first front rail; 1312. a second front rail; 132. a third drive assembly; 140. a rear rail mechanism; 141. a rear rail module; 1411. a first rear rail; 1412. a second rear rail; 1413. a third slide rail; 1414. a third slider; 1415. a fixing plate; 142. a fourth drive assembly; 1421. a fourth driving motor; 1422. a fourth belt; 1423. a fourth clamping member; 1424. a clamping assembly; 1424A, a driving pulley; 1424B, driven pulleys; 143. a fifth drive assembly; 1431. a mounting plate; 1432. a fifth driving motor; 144. a rear rail transport assembly; 1441. a rear rail conveyor belt; 1442. a rear rail motor; 150. a positioning hole group; 151. visual positioning holes.

Detailed Description

In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 7, a mobile conveyor track 100 of a chip mounter includes a frame 110, a middle rail mechanism 120, a front rail mechanism 130, and a rear rail mechanism 140. The frame 110 is provided with a first working area 111, a second working area 112 and a third working area 113 which are sequentially and adjacently arranged, wherein the first working area 111 is set to be in an X-axis direction towards the second working area 112, and the vertical X-axis direction is set to be in a Y-axis direction. The middle rail mechanism 120 is disposed in the second working area 112, the middle rail mechanism 120 includes a first driving component 121, a second driving component 122 and two middle rail modules 123, the two middle rail modules 123 are respectively formed with a first conveying channel 1231 and a second conveying channel 1232, the middle rail modules 123 include a first middle rail 1233 and a second middle rail 1234, the first driving component 121 and the second driving component 122 are both mounted on the frame 110, the first driving component 121 is connected with the first middle rail 1233 of one of the middle rail modules 123 to adjust the width of the first conveying channel 1231, The second driving assembly 122 is connected to the first middle rail 1233 of the other middle rail module 123 to adjust the width of the second conveying path 1232. The front rail mechanism 130 is disposed in the first working area 111, the front rail mechanism 130 includes a front rail module 131 and a third driving assembly 132, the third driving assembly 132 is connected to the frame 110, and the third driving assembly 132 drives the front rail module 131 to reciprocate along the Y-axis direction to switch between the first conveying channel 1231 and the second conveying channel 1232. The back rail mechanism 140 is disposed in the third working area 113, the back rail mechanism 140 includes a back rail module 141, a fourth driving component 142 and a fifth driving component 143, the fourth driving component 142 and the fifth driving component 143 are all connected with the frame 110, the fourth driving component 142 drives the back rail module 141 to reciprocate along the Y-axis direction to switch between the first conveying channel 1231 and the second conveying channel 1232, the back rail module 141 includes a first back rail 1411 and a second back rail 1412, the fifth driving component 143 is connected with the second back rail 1412, and the fifth driving component 143 drives the second back rail 1412 to move to adapt to the width of the first conveying channel 1231 or the second conveying channel 1232. Wherein the PCB passes through the first working area 111, the second working area 112, and the third working area 113 in sequence. Illustratively, two tracks on one of the middle rail modules 123 constitute a first conveyance path 1231 and two tracks on the other middle rail module 123 constitute a second conveyance path 1232. Because the chip mounting requires time, the moving and conveying track 100 of the present application moves the front rail module 131 to the position corresponding to the first conveying channel 1231, and conveys the PCB board to the second working area 112 for chip mounting, and then conveys the front rail module 131 to the position corresponding to the second conveying channel 1232, and conveys the PCB board to the second working area 112 for chip mounting, and sequentially switches back and forth, so that the back rail module 141 is the same, not only can the efficiency be improved, but also the number of the front rail module 131 and the back rail module 141 is reduced, and further the space occupation and the equipment cost are reduced.

As shown in fig. 1,6 and 7, in the present embodiment, the moving conveying track 100 of the present application implements conveying of a PCB board by providing the front rail mechanism 130, the middle rail mechanism 120 and the rear rail mechanism 140, and the middle rail mechanism 120 is provided with the first conveying channel 1231 and the second conveying channel 1232, the front rail module 131 and the rear rail module 141 are only provided with one, and the front rail module 131 and the rear rail module 141 can reciprocate along the Y axis direction, so as to switch between the first conveying channel 1231 and the second conveying channel 1232, that is, two rails on the middle rail mechanism 120 share one front rail module 131 and one rear rail module 141, which not only improves the production efficiency, but also reduces the arrangement of the front rail module 131 and the rear rail module 141, and further reduces the occupied space of the moving conveying track 100. On the middle rail mechanism 120, the first driving assembly 121 and the second driving assembly 122 are arranged to drive the first middle rails 1233 on the two middle rail modules 123 to move, so that the width of the first conveying channel 1231 and the width of the second conveying channel 1232 are adjusted, the distance between the first front rail 1311 and the second front rail 1312 are adjustable, and the distance between the first rear rail 1411 and the second rear rail 1412 are adjustable so as to adapt to the width of the first conveying channel 1231 and the width of the second conveying channel 1232, and therefore, the PCB with different models can be adapted.

As shown in fig. 1, 6 and 7, as one possible embodiment, the fourth driving assembly 142 includes a fourth driving motor 1421, a fourth belt 1422, a fourth clamping member 1423, and a clamping assembly 1424, the fourth driving motor 1421 is coupled to the fourth belt 1422, the fourth clamping member 1423 is connected between the fourth belt 1422 and the first rear rail 1411, and the clamping assembly 1424 is connected between the fourth belt 1422 and the fifth driving assembly 143. Illustratively, the fourth driving motor 1421 drives the fourth belt 1422 to rotate, so as to drive the rear rail module 141 to move repeatedly along the Y-axis direction as a whole.

As shown in fig. 1, 6, and 7, as one possible embodiment, the clamping assembly 1424 includes a driving pulley 1424A and two driven pulleys 1424B, the fifth driving assembly 143 includes a mounting plate 1431 and a fifth driving motor 1432, the fifth driving motor 1432 is connected to the driving pulley 1424A, and the driving pulley 1424A and the driven pulleys 1424B are respectively abutted against opposite sides of the fourth belt 1422. Illustratively, the driving pulley 1424A and the two driven pulleys 1424B clamp the fourth belt 1422, and the rear rail module 141 moves as a whole when the fifth driving motor 1432 is not operated and the fourth driving motor 1421 is operated. When the fifth driving motor 1432 is operated, both the driving pulley 1424A and the driven pulley 1424B are rubbed against the fourth belt 1422, and at this time, the second rear rail 1412 moves such that the distance between the first rear rail 1411 and the second rear rail 1412 is changed.

As shown in fig. 1, 6 and 7, as a possible embodiment, the rear rail module 141 further includes a third sliding rail 1413, a third sliding block 1414 and a fixing plate 1415, the third sliding rail 1413 is mounted on the frame 110, the third sliding block 1414 is slidably mounted on the third sliding rail 1413, the first rear rail 1411 and the second rear rail 1412 are mounted on the third sliding block 1414 through the fixing plate 1415, and the third sliding rail 1413 is disposed along the Y axis direction.

As shown in fig. 1, 6 and 7, as one possible embodiment, the rear rail mechanism 140 further includes a rear rail conveying assembly 144, the rear rail conveying assembly 144 includes a rear rail conveying belt 1441 and a rear rail motor 1442, the rear rail motor 1442 is connected to the rear rail conveying belt 1441, and the rear rail motor 1442 drives the rear rail conveying belt 1441 to move along the X-axis direction. Illustratively, the rear rail transport assembly 144 is used to transport the PCB boards.

As shown in fig. 2,4 and 5, as one possible embodiment, the first driving assembly 121 includes a first driving motor 1211, a first driving wheel 1212, a first driven wheel 1213 and a first belt 1214, the first driving motor 1211 is connected to the first driving wheel 1212, the first driving wheel 1212 and the first driven wheel 1213 are respectively coupled to the first belt 1214, the middle rail module 123 further includes a first screw rod 1235 and a first sliding block 1236, the first screw rod 1235 is connected to the first driving wheel 1212, and the first sliding block 1236 is connected to the first screw rod 1235 and the first middle rail 1233 of one of the middle rail modules 123. Illustratively, unlike the front rail module 131 and the rear rail module 141, the front rail module 131 and the rear rail module 141 are driven by a belt driving structure, while the middle rail module 123 is driven by a ball screw structure. In addition, the front rail module 131 and the rear rail module 141 can move integrally, and the distance between the rails can be adjusted, however, the middle rail module 123 only needs to adjust the distance between the rails, and does not need to move integrally.

As shown in fig. 2,4 and 5, as one possible embodiment, the second driving assembly 122 includes a second driving motor 1221, a second driving wheel 1222, a second driven wheel 1223 and a second belt 1224, the second driving motor 1221 is connected to the second driving wheel 1222, the second driving wheel 1222 and the second driven wheel 1223 are respectively coupled to the second belt 1224, the middle rail module 123 further includes a second screw rod 1237 and a second sliding block 1238, the second screw rod 1237 is connected to the second driving wheel 1222, and the second sliding block 1238 is connected to the second screw rod 1237 and the first middle rail 1233 of the other middle rail module 123.

As shown in fig. 2, 4 and 5, as a possible embodiment, the middle rail mechanism 120 further includes a middle rail conveying assembly 124, where the middle rail conveying assembly 124 includes a middle rail conveying belt 1241 and a middle rail motor 1242, and the middle rail motor 1242 is connected to the middle rail conveying belt 1241, and the middle rail motor 1242 drives the middle rail conveying belt 1241 to move along the X-axis direction.

As shown in fig. 1, 2, and 4, as a possible embodiment, the front rail mechanism 130 has the same structure as the rear rail mechanism 140.

As shown in fig. 2,3 and 4, as a possible embodiment, the mobile conveyor track 100 further includes a vision camera (not shown in the drawings) and a positioning hole set 150, the front rail module 131 includes a first front rail 1311 and a second front rail 1312, the first front rail 1311 and the second front rail 1312 are disposed in parallel, the first middle rail 1233 and the second middle rail 1234 are disposed in parallel, the first rear rail 1411 and the second rear rail 1412 are disposed in parallel, the positioning hole set 150 is disposed on each of the first front rail 1311, the second front rail 1312, the first middle rail 1233, the second middle rail 1234, the first rear rail 1411 and the second rear rail 1412, and the vision camera cooperates with the positioning hole set 150 to determine whether each rail is parallel, and the positioning hole set 150 on each rail includes at least two vision positioning holes 151. Illustratively, when judging whether the two tracks are parallel, the positions of the visual positioning holes 151 are recognized by the visual camera, and the visual positioning holes 151 on the same track are connected in a line, which is used as a reference to judge whether the two tracks are parallel. In this embodiment, the first front rail 1311, the second front rail 1312, the first middle rail 1233, the second middle rail 1234, the first rear rail 1411 and the second rear rail 1412 are all provided with the positioning hole set 150, and the vision camera is matched with the positioning hole set 150 to determine whether the rails are parallel, so that the PCB board can be smoothly conveyed on the rails, and non-parallel between the two rails caused by adjusting the distance between the rails is avoided.

The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims (10)

1. The utility model provides a remove transfer rail of chip mounter which characterized in that includes:

The machine frame is provided with a first working area, a second working area and a third working area which are sequentially and adjacently arranged, wherein the first working area is set to be in an X-axis direction towards the second working area, and the vertical X-axis direction is set to be in a Y-axis direction;

The middle rail mechanism is arranged in the second working area and comprises a first driving assembly, a second driving assembly and two middle rail modules, wherein the two middle rail modules are respectively provided with a first conveying channel and a second conveying channel, each middle rail module comprises a first middle rail and a second middle rail, the first driving assembly and the second driving assembly are both arranged on the rack, the first driving assembly is connected with the first middle rail of one middle rail module to adjust the width of the first conveying channel, and the second driving assembly is connected with the first middle rail of the other middle rail module to adjust the width of the second conveying channel;

The front rail mechanism is arranged in the first working area and comprises a front rail module and a third driving assembly, the third driving assembly is connected with the frame, and the third driving assembly drives the front rail module to reciprocate along the Y-axis direction so as to switch between the first conveying channel and the second conveying channel;

The rear rail mechanism is arranged in the third working area and comprises a rear rail module, a fourth driving assembly and a fifth driving assembly, the fourth driving assembly and the fifth driving assembly are connected with the frame, the fourth driving assembly drives the rear rail module to reciprocate along the Y-axis direction so as to switch between the first conveying channel and the second conveying channel, the rear rail module comprises a first rear rail and a second rear rail, the fifth driving assembly is connected with the second rear rail, and the fifth driving assembly drives the second rear rail to move so as to adapt to the width of the first conveying channel or the second conveying channel;

the PCB passes through the first working area, the second working area and the third working area in sequence.

2. The mobile conveyor track of claim 1, wherein the fourth drive assembly includes a fourth drive motor, a fourth belt, a fourth clamp, and a clamp assembly, the fourth drive motor coupled to the fourth belt, the fourth clamp coupled between the fourth belt and the first rear track, the clamp assembly coupled between the fourth belt and the fifth drive assembly.

3. The mobile conveyor track of claim 2, wherein the clamping assembly comprises a driving pulley and two driven pulleys, the fifth driving assembly comprises a mounting plate and a fifth driving motor, the fifth driving motor is mounted on the mounting plate, the fifth driving motor is connected with the driving pulley, and the driving pulley and the driven pulleys are respectively abutted against opposite sides of the fourth belt.

4. The mobile conveyor track of claim 3, wherein the rear rail module further comprises a third slide rail, a third slider and a fixing plate, the third slide rail is mounted on the frame, the third slider is slidably mounted on the third slide rail, the first rear rail and the second rear rail are mounted on the third slider through the fixing plate, and the third slide rail is disposed along the Y-axis direction.

5. The mobile conveyor track of claim 4, wherein the back rail mechanism further comprises a back rail transport assembly comprising a back rail transport belt and a back rail motor, the back rail motor being coupled to the back rail transport belt, the back rail motor driving the back rail transport belt to move in the X-axis direction.

6. The mobile conveyor track of claim 1, wherein the first drive assembly includes a first drive motor, a first drive wheel, a first driven wheel, and a first belt, the first drive motor is connected with the first drive wheel, the first drive wheel and the first driven wheel are respectively coupled with the first belt, the middle rail module further includes a first screw and a first slider, the first screw is connected with the first drive wheel, and the first slider is connected to the first screw and a first middle rail of one of the middle rail modules.

7. The mobile conveyor track of claim 6, wherein the second driving assembly includes a second driving motor, a second driving wheel, a second driven wheel, and a second belt, the second driving motor is connected with the second driving wheel, the second driving wheel and the second driven wheel are respectively coupled with the second belt, the middle rail module further includes a second screw rod and a second sliding block, the second screw rod is connected with the second driving wheel, and the second sliding block is connected with the second screw rod and a first middle rail of another middle rail module.

8. The mobile conveyor track of claim 7, wherein the mid-rail mechanism further comprises a mid-rail conveyor assembly comprising a mid-rail conveyor belt and a mid-rail motor, the mid-rail motor being coupled to the mid-rail conveyor belt, the mid-rail motor driving the mid-rail conveyor belt to move in the X-axis direction.

9. The mobile conveyor track of claim 1, wherein the front rail mechanism is configured identically to the rear rail mechanism.

10. The mobile conveying track of a chip mounter according to claim 9, further comprising a vision camera and a positioning hole set, wherein the front rail module comprises a first front rail and a second front rail, the first front rail and the second front rail are arranged in parallel, the first middle rail and the second middle rail are arranged in parallel, the first rear rail and the second rear rail are arranged in parallel, and the positioning hole sets are arranged on the first front rail, the second front rail, the first middle rail, the second middle rail, the first rear rail and the second rear rail, the vision camera is matched with the positioning hole set to judge whether the rails are parallel, and the positioning hole set on each rail comprises at least two vision positioning holes.