Chip mounter conveying device

Abstract

A conveying device of a chip mounter is arranged on a machine table and comprises two conveying rails which are arranged side by side; the bearing assembly is arranged between the two conveying rails, and the conveying assembly is arranged between the two conveying rails; the clamping assembly is used for clamping and fixing the supported workpiece and comprises a vertical plate, an upper pressing plate fixedly arranged on the top of the vertical plate and a lower pressing plate movably arranged on the vertical plate and matched with the upper pressing plate. And the driving unit is used for driving the lower pressing plate to move to be clamped with or separated from the upper pressing plate. The bearing air cylinder lifts the bearing plate so as to support and support the circuit board located on the conveying track, and at the moment, the two clamping assemblies tightly clamp the two ends of the circuit board, so that the circuit board is kept fixed, the stability of the circuit board in the surface mounting machining process can be guaranteed, and the surface mounting precision is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment, in particular to a conveying device for a chip mounter. Background Art

[0002] Circuit boards are currently the most common electrical components. They miniaturize and visualize circuits, playing a crucial role in the mass production of fixed circuits and optimizing circuit layouts. With the miniaturization of electronic components, circuit boards are increasingly being manufactured using surface-mount components. SMT machines are used to transport electronic components onto the circuit boards for alignment and placement. Current SMT machines place circuit boards on a conveyor belt. Once transported to the placement station, a suction nozzle driven by a robotic arm or multiple linear actuators picks up the components and places them on the circuit board.

[0003] However, the conveyor belt is a flexible conveying device, and the conveyor belt has little supporting effect on the bottom of the circuit board. In the process of mounting electronic components, a certain pressure is required to ensure the mounting effect, which easily leads to different pressures on the upper and lower sides of the circuit board, which can easily cause the circuit board to be crushed and produce defective products. At present, in order to solve the above problems, a conveying device has appeared on the market. In the process of mounting the circuit board, a top plate that can be raised and lowered is provided to support the lower side of the circuit board, thereby ending the above problems.

[0004] However, during the process of mounting the circuit board, the circuit board is prone to shaking or moving, which seriously affects the accuracy and stability of the mounting.

[0005] Therefore, there is an urgent need for a chip placement machine conveying device to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a conveying device for a placement machine. In order to solve the above technical problems, this utility model adopts the following technical solutions:

[0007] A chip placement machine conveying device, arranged on a machine platform, includes:

[0008] A conveying track, wherein two conveying tracks are arranged side by side to convey the workpiece in a predetermined direction;

[0009] A supporting assembly is provided between the two conveying rails to lift the workpiece and separate it from the conveying rails, and includes a supporting cylinder and a supporting plate in transmission connection with the supporting cylinder;

[0010] The clamping assembly includes two clamping assemblies, and the two clamping assemblies are arranged corresponding to the supporting assemblies on the outside of the two conveying tracks to clamp and fix the supported workpiece. The clamping assembly includes a vertical plate, an upper pressure plate fixedly arranged on the top of the vertical plate, and a lower pressure plate movably arranged on the vertical plate and cooperating with the upper pressure plate. It also includes a driving unit that drives the lower pressure plate to move and clamp or separate with the upper pressure plate.

[0011] Furthermore, the conveying track also includes:

[0012] A conveying plate, wherein the conveying plate is arranged along a predetermined direction;

[0013] The conveying system is arranged on the conveying plate to convey the circuit board along a predetermined direction. The conveying system includes

[0014] The transmission wheel group includes a plurality of transmission wheels arranged side by side and arranged along the length direction of the conveying plate and rotatably connected to the conveying plate.

[0015] The transmission shaft has two ends which are rotatably connected to the two conveying plates and are fixed with driving wheels.

[0016] The conveyor belt is mounted on the transmission wheel set and the driving wheel, and also includes

[0017] A transmission motor is connected to the transmission shaft for driving the transmission shaft to rotate around an axis.

[0018] Furthermore, a plurality of tension wheels are rotatably connected to the conveying plate, and the plurality of tension wheels are spaced apart from each other. The tension wheels are located at the lower side of the transmission wheel group, and an avoidance gap is provided at the corresponding position of the transmission wheel group and the tension wheel.

[0019] Furthermore, one end of the upper pressing plate is fixedly connected to the vertical plate, and the other end extends toward the conveying track and is located above the transmission wheel group; the driving unit is arranged on the lower side of the upper pressing plate, and includes:

[0020] a first cylinder, the first cylinder being fixedly mounted on the vertical plate;

[0021] a fixed plate, the fixed plate being drivingly connected to the first cylinder and driven by the first cylinder to reciprocate toward the upper pressing plate;

[0022] a second cylinder, wherein the second cylinder is fixedly mounted on the fixed plate, and a piston rod of the second cylinder extends toward the conveying track;

[0023] The lower pressure plate is slidably connected to the fixed plate and is transmission-connected to the second cylinder. It is driven by the second cylinder to move back and forth toward or away from the conveying track, and a plurality of tightening arms corresponding to the avoidance gaps are formed on an edge of the lower pressure plate facing the conveying track.

[0024] Furthermore, the conveying plate on any one of the conveying tracks is slidably connected to the machine along a direction orthogonal to the conveying direction, and the machine is further provided with a first adjustment component for adjusting the spacing distance between the two conveying tracks, the first adjustment component comprising:

[0025] A support base, wherein the support base and the conveying plate are arranged side by side with each other;

[0026] A first screw rod, both ends of which are rotatably connected to the support seat and the fixed conveying plate, and are threadedly connected to the slidable conveying plate;

[0027] A first adjusting wheel is connected to the first screw rod in a transmission manner and is used to drive the first screw rod to rotate.

[0028] Furthermore, a base plate is provided on the machine, the two clamping assemblies are provided on the base plate, and a vertical plate corresponding to the sliding conveying track is slidably connected to the base plate, and the sliding direction is the same as the sliding direction of the conveying track; a second adjustment assembly for adjusting the spacing distance between the two clamping assemblies is also provided on the machine, and the second adjustment assembly includes:

[0029] A mounting plate, wherein the mounting plate and the vertical plate are arranged side by side with each other;

[0030] A second screw rod, both ends of which are rotatably connected to the mounting plate and the vertical plate fixedly arranged thereon, and are threadedly connected to the vertical plate arranged thereon for sliding;

[0031] A second adjusting wheel is connected to the second screw rod in a transmission manner to drive the second screw rod to rotate.

[0032] Furthermore, the supporting assembly is fixedly arranged on the base plate; a slide assembly is also arranged on the machine, and the slide assembly is arranged on the machine along the conveying direction of the conveying device, and the base plate is fixedly installed on the slide assembly to drive the clamping assembly and the supporting assembly to move back and forth along the conveying direction.

[0033] Furthermore, a stop unit for stopping the workpiece from being transported is provided on the conveying track, and the stop unit includes:

[0034] A mounting seat, which is fixedly mounted on the conveying plate and has a through hole along the pivot axis;

[0035] a limiting member, the limiting member being slidably connected in a vertical direction within the through hole of the mounting seat, wherein the lower end of the limiting member is configured as a contact portion having a curved surface;

[0036] A stop cylinder is fixedly mounted on the conveying plate, and the stop cylinder is transmission-connected to a push block, and an end of the push block is provided with an inclined surface that cooperates with the contact portion.

[0037] Furthermore, the support plate includes

[0038] A connecting plate, the connecting plate being drivingly connected to the supporting cylinder;

[0039] A heat insulation plate, fixedly mounted on the connecting plate;

[0040] A top plate, the top plate being arranged on the heat insulation plate and used for supporting the circuit board;

[0041] A heating element is fixedly installed between the heat insulation and the top plate and is electrically connected to a power source for generating heat and transferring the heat to the top plate.

[0042] The beneficial effects produced by the utility model are as follows:

[0043] During the processing of circuit boards, the two ends of the circuit board are placed on two conveyor rails, which convey it along a predetermined direction. When it is transported to the working position, the supporting cylinder lifts the supporting plate to support and lift the circuit board on the conveyor rails. At this time, the two clamping components tightly clamp the two ends of the circuit board to keep the circuit board fixed, which can ensure stability during the circuit board mounting process and ensure mounting accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0045] Figure 2 It is a structural schematic diagram of the conveying track in the utility model.

[0046] Figure 3 It is a structural schematic diagram of the supporting assembly and the clamping assembly in the utility model.

[0047] Figure 4 It is a structural schematic diagram of the clamping assembly in the utility model.

[0048] Figure 5 This is a schematic diagram of the exploded structure of the clamping assembly in the present invention.

[0049] Figure 6 It is a structural schematic diagram of the stop unit in the utility model.

[0050] Figure 7 It is a schematic diagram of the explosion structure of the stop unit in the utility model.

[0051] Figure 8 It is a schematic diagram of the exploded structure of the supporting assembly in the utility model.

[0052] In the figure: 100 - machine platform; 200 - conveyor rail; 300 - supporting assembly; 310 - supporting cylinder; 320 - supporting plate; 400 - clamping assembly; 410 - vertical plate; 420 - upper pressure plate; 430 - lower pressure plate; 440 - drive unit; 201 - conveyor plate; 210 - conveyor system; 211 - transmission wheel assembly; 212 - transmission shaft; 213 - conveyor belt; 214 - tensioning pulley; 215 - avoidance gap; 441 - first cylinder; 442 - fixing plate; 443 - second cylinder; 431 - tightening arm; 110 - first adjustment assembly; 111 - support base; 112 - first screw; 113 - first adjusting wheel; 101 - bottom plate; 120 - second adjustment assembly; 121 - mounting plate; 122 - second screw. 123 - second adjusting wheel; 102 - slide assembly; 220 - stop unit; 221 - mounting seat; 222 - limit member; 223 - stop cylinder; 224 - push block; 225 - inclined ramp; 226 - resistance part; 321 - connecting plate; 322 - heat insulation plate; 323 - top plate; 324 - heating element; 325 - heat conduction plate. DETAILED DESCRIPTION

[0053] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the embodiments and drawings. The contents mentioned in the embodiments are not intended to limit the present invention. The present invention is described in detail below in conjunction with the drawings.

[0054] An embodiment of the utility model provides a conveying device for a placement machine, which can convey a circuit board and support the circuit board during the process of placing electronic components on the circuit board. At the same time, the two ends of the circuit board are clamped and fixed by a clamping component 400 to avoid movement, thereby ensuring the stability and accuracy of the placement process.

[0055] like Figure 1-8As shown, a placement machine conveying device is arranged on a machine table 100 and is provided with: a conveying track 200, a supporting assembly 300, and a clamping assembly 400, wherein the conveying track 200 is provided with two mutually arranged side by side, for conveying the workpiece along a predetermined direction; the supporting assembly 300 is arranged between the two conveying tracks 200, for lifting the workpiece and separating it from the conveying track 200, and includes a supporting cylinder 310 and a supporting plate 320 connected to the supporting cylinder 310; the clamping assembly 400 is provided with a supporting cylinder 310 and a supporting plate 320 connected to the supporting cylinder 310; the clamping assembly 400 is provided with a supporting cylinder 310 and a supporting plate 320 connected to the supporting cylinder 310; the clamping assembly 400 is provided with two mutually arranged side by side, for conveying the workpiece along a predetermined direction; the supporting assembly 300 is provided between the two conveying tracks 200, for lifting the workpiece and separating it from the conveying tracks 200; the supporting assembly 300 is provided with a supporting cylinder 310 and a supporting plate 320 connected to the supporting cylinder 310; the clamping assembly 4 ... 00 includes two, and the two clamping assemblies 400 and the supporting assemblies 300 are arranged corresponding to each other on the outside of the two conveying rails 200 to clamp and fix the supported workpiece. The clamping assembly 400 includes a vertical plate 410, an upper pressure plate 420 fixedly arranged on the top of the vertical plate 410, and a lower pressure plate 430 movably arranged on the vertical plate 410 and cooperating with the upper pressure plate 420. It also includes a driving unit 440 that drives the lower pressure plate 430 to move and clamp or separate with the upper pressure plate 420.

[0056] During the processing of the circuit board, the two ends of the circuit board are placed on two conveying rails 200, which convey it along a predetermined direction. When it is transported to the working position, the supporting cylinder 310 lifts the supporting plate 320 to support and lift the circuit board located on the conveying rail 200. At this time, the two clamping assemblies 400 tightly clamp the two ends of the circuit board to keep the circuit board fixed, which can ensure stability during the circuit board mounting process and ensure mounting accuracy.

[0057] In this implementation, if Figure 1-2 As shown, the conveying track 200 also includes: a conveying plate 201 and a conveying system 210 arranged on the conveying plate 201. The conveying plate 201 is arranged on the machine 100 along a predetermined direction, and the circuit board is moved by the conveying system, wherein the conveying system 210 is arranged on the conveying plate 201 for conveying the circuit board along a predetermined direction. The conveying system 210 includes a transmission wheel group 211, a transmission shaft 212, a conveyor belt 213 and a conveying motor, wherein the transmission wheel group 211 includes a plurality of transmission wheels arranged side by side, and is arranged along the length direction of the conveying plate 201 and rotatably connected to the conveying plate 201, the two ends of the transmission shaft 212 are respectively rotatably connected to the two conveying plates 201, and are respectively fixed with driving wheels, the conveyor belt 213 is sleeved on the transmission wheel group 211 and the driving wheel, and the conveying motor (not shown in the figure) is transmission-connected to the transmission shaft 212 for driving the transmission shaft 212 to rotate around the axis. In this embodiment, the conveying motor can be set to one, so that the conveying system 210 on the two conveying tracks 200 can be driven by one conveying motor, and the conveying speed on the two conveying tracks 200 is the same, thereby ensuring the accuracy of the circuit board conveyance and preventing deviation.

[0058] In this embodiment, a plurality of tensioning wheels 214 are rotatably arranged on the conveying plate 201, so as to ensure the tension of the conveyor belt 213. The plurality of tensioning wheels 214 are arranged at intervals from each other, and the tensioning wheel 214 is located on the lower side of the transmission wheel group 211, and an avoidance gap 216 is provided at the corresponding position of the transmission wheel group 211 and the tensioning wheel 214.

[0059] In this embodiment, the clamping assembly 400 is used to clamp the two ends of the circuit board (the ends respectively overlapped on the conveying track 200) to fix the circuit board. During the clamping process, the driving unit 440 drives the lower pressing plate 430 to move toward the upper pressing plate 420, thereby clamping the two ends of the circuit board. Figure 3-5 As shown, one end of the upper pressing plate 420 is fixedly connected to the vertical plate 410, and the other end extends toward the conveying track 200 and is located above the transmission wheel group 211; the driving unit 440 is arranged on the lower side of the upper pressing plate 420, and the driving unit 440 includes a first cylinder 441, a fixed plate 442 and a second cylinder 443, wherein the first cylinder 441 is fixedly installed on the vertical plate 410; the fixed plate 442 is transmission-connected to the first cylinder 441 and is driven by the first cylinder 441 toward the upper pressing plate 420 reciprocating movement; the second cylinder 443 is fixedly mounted on the fixed plate 442, and the piston rod of the second cylinder 443 extends toward the conveying track 200; in this embodiment, the lower pressure plate 430 is slidably connected to the fixed plate 442 and is transmission-connected to the second cylinder 443, and is driven by the second cylinder 443 to reciprocate toward or away from the conveying track 200, and a plurality of tightening arms 431 corresponding to the avoidance gaps 216 are formed on an edge of the lower pressure plate 430 facing the conveying track 200.

[0060] During the process of clamping the circuit board, the lower pressure plate 430 drives the second cylinder 443 to move toward the conveying track 200, so that the clamping arm 431 extends into between the two conveying tracks 200 along the avoidance gap 216. At this time, the first cylinder 441 drives the fixing plate 442 to move upward, thereby mobilizing the lower pressure plate 430 to move toward the upper pressure plate 420, so that the circuit board is clamped by the upper pressure plate 420 and the lower pressure plate 430.

[0061] In order to transport circuit boards of different sizes, the conveying plate 201 on any conveying track 200 is slidably connected to the machine 100 in a direction perpendicular to the conveying direction, and the machine 100 is also provided with a first adjustment component 110 for adjusting the spacing distance between the two conveying tracks 200. Under the adjustment of the first adjustment component 110, the spacing distance between the two conveying tracks 200 can be changed, so as to adapt to the transportation of circuit boards of different sizes. The first adjustment component 110 includes: a support seat 111, a first screw rod 112 and a first adjustment wheel 113, wherein the support seat 111 and the conveying plate 201 are arranged side by side with each other; the two ends of the first screw rod 112 are respectively rotatably connected to the support seat 111 and the fixed conveying plate 201, and are threadedly connected to the sliding conveying plate 201; the first adjustment wheel 113 is transmission-connected to the first screw rod 112 to drive the first screw rod 112 to rotate. In this embodiment, the adjusting wheel is connected to the first screw rod 112 through a belt, so that when the first adjusting wheel 113 is rotated, the first screw rod 112 can be rotated to drive the position of the sliding conveying track 200 to meet the conveying requirements of circuit boards of different sizes.

[0062] At the same time, in order to be able to clamp and fix circuit boards of different sizes, such as Figure 3-5 As shown, a base plate 101 is also provided on the machine 100, two clamping assemblies 400 are arranged on the base plate 101, and a vertical plate 410 corresponding to the sliding conveying track 200 is slidably connected to the base plate 101, and the sliding direction is the same as the sliding direction of the conveying track 200; a second adjustment assembly 120 for adjusting the spacing distance between the two clamping assemblies 400 is also provided on the machine 100, and the second adjustment assembly 120 includes: a mounting plate 121, a second screw rod 122 and a second adjustment wheel 123, wherein the mounting plate 121 and the vertical plate 410 are arranged side by side with each other; the two ends of the second screw rod 122 are respectively rotatably connected to the mounting plate 121 and the fixed vertical plate 410, and are threadedly connected to the sliding vertical plate 410; the second adjustment wheel 123 is transmission-connected to the second screw rod 122 to drive the second screw rod 122 to rotate. The adjustment process of the sliding clamping assembly 400 is the same as described above and will not be repeated here. The first adjustment assembly 110 and the second adjustment assembly 120 are used to adjust the spacing between the conveying rails 200 and the spacing between the clamping assemblies 400 respectively, so that circuit boards of different sizes can be conveyed and clamped, thereby improving the working performance of the conveying device.

[0063] In this embodiment, in order to actively support and clamp the circuit board on the conveying track 200, a slide assembly 102 is further provided on the machine 100. Figure 3As shown, the slide assembly 102 is positioned above the machine platform 100 along the conveying direction of the conveyor, and the base plate 101 is fixedly mounted on the slide assembly 102 to drive the clamping assembly 400 and the supporting assembly 300 to move back and forth along the conveying direction. The slide assembly 102 drives the supporting assembly and the clamping assembly to actively move toward the conveyed circuit board, thereby actively supporting and clamping the circuit board, thereby improving production efficiency throughout the entire processing process.

[0064] At the same time, in order to prevent the subsequent circuit boards on the conveyor track 200 from affecting the mounting process of the circuit boards on the front side, a stop unit 220 is provided on the conveyor track 200 to block the conveyance of the workpiece. Figure 2 、 6 -7, the stop unit 220 includes: a mounting seat 221, a limiting member 222 and a stop cylinder 223, wherein the mounting seat 221 is fixedly mounted on the conveying plate 201, and a through hole along the pivot direction is opened on it; the limiting member 222 is slidably connected in the through hole of the mounting seat 221 along the vertical direction, and the lower end of the limiting member 222 is provided with a contact portion 226 with a curved surface. In this embodiment, a rotating shaft is rotatably connected to the limiting member 222, and the circumferential surface of the rotating shaft constitutes the contact portion 226. In other embodiments, the lower end of the limiting member 222 can also be provided with an arc-shaped end to constitute the contact portion 226; the stop cylinder 223 is fixedly mounted on the conveying plate 201, and the stop cylinder 223 is transmission-connected to a push block 224, and the end of the push block 224 is provided with an inclined surface 225 that cooperates with the contact portion 226. The stop cylinder 223 pushes the pushing block 224 to move toward the limit member 222, so that the inclined surface 225 of the pushing block 224 cooperates with the contact portion 226. Under the action of the inclined surface 225, the limit member 222 rises within the through hole of the mounting seat 221, thereby stopping the circuit board transported along the conveying track 200. It can be imagined that a spring can also be provided at the lower end of the limit member 222 to provide a downward elastic force to the limit member 222, so that the upper end of the limit member 222 is in the mounting seat 221 in the initial state, thereby avoiding the conveying of the circuit board.

[0065] In the process of mounting electronic components and other patch components on the circuit board, it is necessary to heat the circuit board and the patch components so that the mounting process can be better performed, such as Figure 8As shown, the supporting plate 320 includes a bottom plate 101, a heat insulation plate 322, a top plate 323 and a heating element 324, wherein the bottom plate 101 is transmission-connected to the supporting cylinder 310; the heat insulation plate 322 is fixedly mounted on the bottom plate 1013121; the top plate 323 is arranged on the heat insulation plate 322 to support the circuit board; the heating element 324 is fixedly mounted between the heat insulation and the top plate 323, and is electrically connected to the power supply to generate heat and transfer the heat to the top plate 323. In order to better transmit the heat generated by the heating element 324, a heat conducting plate 325 is further provided on the lower side of the top plate 323. The heat conducting plate 325 is in direct contact with the heating element 324, so that the heat emitted by the heating element 324 can be evenly and quickly transferred to the top plate 323, which is used to heat the circuit board and chip components undergoing mounting processing. In this embodiment, the heating element 324 is a device in the prior art that can generate heat by passing current, such as a heating resistor.

[0066] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Although the present invention is disclosed as above in terms of preferred embodiments, they are not intended to limit the present invention. Any technician familiar with the profession can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical content disclosed above. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technology of the present invention, which do not depart from the content of the technical solution of the present invention, are within the scope of the technical solution of the present invention.

Claims

1. A chip placement machine conveying device, arranged on a machine platform, characterized in that: Includes: A conveying track, wherein two conveying tracks are arranged side by side to convey the workpiece in a predetermined direction; A supporting assembly is provided between the two conveying rails to lift the workpiece and separate it from the conveying rails, and includes a supporting cylinder and a supporting plate in transmission connection with the supporting cylinder; The clamping assembly includes two clamping assemblies, and the two clamping assemblies are arranged corresponding to the supporting assemblies on the outside of the two conveying tracks to clamp and fix the supported workpiece. The clamping assembly includes a vertical plate, an upper pressure plate fixedly arranged on the top of the vertical plate, and a lower pressure plate movably arranged on the vertical plate and cooperating with the upper pressure plate. It also includes a driving unit that drives the lower pressure plate to move and clamp or separate with the upper pressure plate.

2. A chip placement machine conveying device according to claim 1, characterized in that: The conveying track also includes: A conveying plate, wherein the conveying plate is arranged along a predetermined direction; The conveying system is arranged on the conveying plate to convey the circuit board along a predetermined direction. The conveying system includes The transmission wheel group includes a plurality of transmission wheels arranged side by side and arranged along the length direction of the conveying plate and rotatably connected to the conveying plate. The transmission shaft has two ends which are rotatably connected to the two conveying plates and are fixed with driving wheels. The conveyor belt is mounted on the transmission wheel set and the driving wheel, and also includes A transmission motor is connected to the transmission shaft for driving the transmission shaft to rotate around an axis.

3. A chip placement machine conveying device according to claim 2, characterized in that: A plurality of tension wheels are rotatably connected to the conveying plate, and the tension wheels are spaced apart from each other. The tension wheels are located at the lower side of the transmission wheel group, and an avoidance gap is provided at the corresponding position of the transmission wheel group and the tension wheel.

4. A chip placement machine conveying device according to claim 3, characterized in that: One end of the upper pressing plate is fixedly connected to the vertical plate, and the other end extends toward the conveying track and is located above the transmission wheel set; the driving unit is arranged on the lower side of the upper pressing plate, and includes: a first cylinder, the first cylinder being fixedly mounted on the vertical plate; a fixed plate, the fixed plate being drivingly connected to the first cylinder and driven by the first cylinder to reciprocate toward the upper pressing plate; a second cylinder, wherein the second cylinder is fixedly mounted on the fixed plate, and a piston rod of the second cylinder extends toward the conveying track; The lower pressure plate is slidably connected to the fixed plate and is transmission-connected to the second cylinder. It is driven by the second cylinder to move back and forth toward or away from the conveying track, and a plurality of tightening arms corresponding to the avoidance gaps are formed on an edge of the lower pressure plate facing the conveying track.

5. A chip placement machine conveying device according to claim 1, characterized in that: The conveying plate on any one of the conveying rails is slidably connected to the machine along a direction orthogonal to the conveying direction, and the machine is further provided with a first adjustment component for adjusting the spacing distance between the two conveying rails, the first adjustment component comprising: A support base, wherein the support base and the conveying plate are arranged side by side with each other; A first screw rod, both ends of which are rotatably connected to the support seat and the fixed conveying plate, and are threadedly connected to the slidable conveying plate; A first adjusting wheel is connected to the first screw rod in a transmission manner and is used to drive the first screw rod to rotate.

6. A chip placement machine conveying device according to claim 5, characterized in that: A base plate is provided on the machine platform, the two clamping assemblies are provided on the base plate, and a vertical plate corresponding to a slidably arranged conveying track is slidably connected to the base plate, and the sliding direction is the same as the sliding direction of the conveying track; a second adjustment assembly is provided on the machine platform for adjusting the spacing distance between the two clamping assemblies, and the second adjustment assembly includes: A mounting plate, wherein the mounting plate and the vertical plate are arranged side by side with each other; A second screw rod, both ends of which are rotatably connected to the mounting plate and the vertical plate fixedly arranged thereon, and are threadedly connected to the vertical plate arranged thereon for sliding; A second adjusting wheel is connected to the second screw rod in a transmission manner to drive the second screw rod to rotate.

7. A chip placement machine conveying device according to claim 6, characterized in that: The supporting assembly is fixedly arranged on the base plate; a slide assembly is also arranged on the machine, and the slide assembly is arranged on the machine along the conveying direction of the conveying device, and the base plate is fixedly installed on the slide assembly to drive the clamping assembly and the supporting assembly to move back and forth along the conveying direction.

8. A chip placement machine conveying device according to claim 7, characterized in that: A stop unit is also provided on the conveying track for blocking the conveying of the workpiece, and the stop unit includes: A mounting seat, which is fixedly mounted on the conveying plate and has a through hole along the pivot axis; a limiting member, the limiting member being slidably connected in a vertical direction within the through hole of the mounting seat, wherein the lower end of the limiting member is configured as a contact portion having a curved surface; A stop cylinder is fixedly mounted on the conveying plate, and the stop cylinder is transmission-connected to a push block, and an end of the push block is provided with an inclined surface that cooperates with the contact portion.

9. A chip placement machine conveying device according to claim 1, characterized in that: The supporting plate includes A connecting plate, the connecting plate being drivingly connected to the supporting cylinder; A heat insulation plate, fixedly mounted on the connecting plate; A top plate, the top plate being arranged on the heat insulation plate and used for supporting the circuit board; A heating element is fixedly installed between the heat insulation and the top plate and is electrically connected to a power source for generating heat and transferring the heat to the top plate.

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