Track clamping structure of narrow-edge chip mounter

Abstract

The utility model provides a track clamping structure of a narrow-edge chip mounter, which belongs to the technical field of SMT (surface mount technology), is mounted on the chip mounter and comprises a clamping component, a working area is arranged in the middle of the chip mounter, tracks are mounted on two opposite sides of the working area of the chip mounter, one side is a fixed track, and the other side is a movable track. The fixed track and the movable track are provided with the clamping assemblies through fasteners, and the sides, close to the center of a working area, of the clamping assemblies are clamping areas; the groove is formed in the side, close to the center of the working area, of the clamping piece to be matched with the edge shape of the PCB, so that the clamping piece can be tightly attached to the edge of the PCB when the chip mounter works, the Mark point cannot be covered, and when the distance from the technological edge of the PCB to the center of the Mark point is 1t, the clamping piece can be tightly attached to the edge of the PCB when the chip mounter works; when the thickness is 3.5 mm, the Mark point can be normally identified without additionally manufacturing a patch carrier; according to the clamping piece structure, surface mounting can be carried out on PCBs of different sizes, and the application range of the surface mounting machine is widened.

Description

TECHNICAL FIELD

[0001] The utility model relates to SMT patch technology field especially relates to a narrow edge patch machine track clamping structure. BACKGROUND

[0002] SMT patch is the important link of PCB assembly process, and SMT patch technology is used to install electronic components on the surface of PCB. Patch process needs to use patch machine, and the patch machine places components accurately by identifying Mark point on the PCB. Mark point is also called reference point, and is used to provide common positioning circuit pattern for all steps in PCB assembly process.

[0003] The PCB is provided with process edge, also known as conveying edge, which is a position reserved for the PCB to be conveyed smoothly on the guide rail of the patch machine in the SMT patch process.

[0004] Among them, the clamping piece of the common patch machine design is usually greater than or equal to 3.5mm from the center of the Mark point to the process edge of the PCB, when the distance from the process edge of the PCB to the center of the Mark point is less than 3.5mm, the clamping piece of the patch machine will cover the Mark point, resulting in that the Mark point cannot be used normally. UTILITY MODEL CONTENTS

[0005] In order to overcome the problems in the related art, the utility model aims to provide a narrow edge patch machine track clamping structure, which is characterized in that a groove is formed on one side of the clamping piece close to the center of the working area, and the groove is adapted to the shape of the edge of the PCB, so that the clamping piece can closely fit the edge of the PCB and will not cover the Mark point. When the distance from the process edge of the PCB to the center of the Mark point is less than 3.5mm, the Mark point can be recognized normally without additional patch carrier, and the patch process can be completed.

[0006] A narrow edge patch machine track clamping structure is installed on a patch machine, and the structure comprises a clamping assembly. The middle part of the patch machine is a working area, and the patch machine is provided with a track on the opposite sides of the working area. One side is a fixed track, and the opposite side is a movable track. The fixed track and the movable track are provided with the clamping assembly through fasteners. The clamping assembly is in the shape of a long strip, and the long side direction of the clamping assembly is the same as the long side direction of the fixed track and the movable track. The clamping assembly is provided with a groove on one side close to the center of the working area.

[0007] The patch machine is mainly composed of a supporting platform, a transmission belt, a Z0 sensor and a track, a clamping assembly is installed on the track and used for clamping a PCB to perform patching work, a clamping area is arranged on the clamping assembly, and the clamping area can closely adhere to the edge of the PCB without covering Mark points during the work of the patch machine.

[0008] In the preferable technical scheme of the utility model, the clamping assembly comprises a clamping piece provided with a plurality of grooves, the groove is a recessed area formed by vertical cutting of the clamping piece, the cutting surface is a smooth surface, and the height of the cutting surface is equal to the longitudinal thickness of the clamping piece.

[0009] In the conventional technology, the clamping piece is a long strip with two smooth surfaces, and therefore, the Mark points are covered and shielded; the structure is provided with grooves on the clamping piece, the shape of the groove is adapted to the shape of the edge of the PCB, the Mark points are not covered, the clamping piece can closely adhere to the PCB during the patching work, and the patching precision is improved.

[0010] In the preferable technical scheme of the utility model, the plurality of grooves are distributed at equal intervals along the long side direction of the clamping piece, and the interval is 10 mm.

[0011] The plurality of grooves at equal intervals can be adapted to the edges of PCBs with different sizes and shapes, and the universality and applicability of the structure of the clamping piece are improved.

[0012] In the preferable technical scheme of the utility model, the plurality of grooves form a plurality of linear flat areas with the same size at the edge positions of the clamping area of the clamping piece, the linear flat area is provided with a boss in the direction perpendicular to the long side direction of the clamping piece; a single boss is distributed between adjacent grooves, and the center distances of the plurality of bosses are equal.

[0013] The boss can stably clamp the PCB, avoids deformation of the clamping piece during clamping, controls the warping degree of the clamping piece to be less than 10%, and ensures that the PCB is kept flat during the patching process, improves the welding precision and quality.

[0014] In the preferable technical scheme of the utility model, the longitudinal thickness of the boss is equal to the longitudinal thickness of the clamping piece, that is, the overall longitudinal thickness of the position provided with the boss is twice the longitudinal thickness of the position not provided with the boss.

[0015] The boss thickness is uniformly distributed on the clamping piece and the boss, reduces local stress concentration, ensures that the gap between the track of the patch machine and the clamping piece is less than or equal to 0.1 mm, and simultaneously reserves space for clamping the PCB.

[0016] Optionally, the top view of the groove is rectangular, and a single groove forms three vertical cut surfaces on the clamping member, with two adjacent cut surfaces perpendicular to each other. The top view width of the groove ranges from 2.0mm to 3.0mm, and the length ranges from 9.5mm to 10.5mm.

[0017] The rectangular groove design can precisely fit the shape of the PCB board edge, which helps to ensure a tight fit between the clamp and the PCB board and improve the stability of the clamp.

[0018] Optionally, the groove has two rounded corners, and each groove forms a vertical cut surface on the clamping member, wherein the radius of the rounded corners ranges from 2.0mm to 3.0mm, and the length of the groove ranges from 9.5mm to 10.5mm.

[0019] Rounded corners can reduce stress concentration at the groove, avoiding fatigue or fracture of the clamping structure due to excessive stress, thereby improving the durability and reliability of the clamping components.

[0020] In the preferred embodiment of this utility model, the clamping member is made of cold-rolled steel.

[0021] Compared to ordinary steel, cold-rolled steel has the advantages of higher strength, better corrosion resistance, and better processing performance, making it more stable and durable.

[0022] In a preferred embodiment of this utility model, the fastener is a screw. When the clamping member is installed on the fixed track, M screw holes are opened on the side away from the center of the working area. M screw holes matching the clamping member are opened on the fixed track; M is an integer greater than 8.

[0023] When the clamping component is installed on the movable track, N screw holes are opened on the side away from the center of the working area, and N screw holes matching the clamping component are opened on the movable track; N is an integer greater than 4.

[0024] The diameter of the screw holes on the clamping member and the track ranges from 6mm to 10mm.

[0025] Threaded fasteners ensure the stability and reliability of the clamping structure, reduce vibration and displacement during the placement process, improve placement accuracy, and have a wide range of applications and strong adaptability, reducing the cost of modifying the placement machine.

[0026] The beneficial effects of this utility model are as follows:

[0027] This utility model provides a narrow-edge pick-and-place machine track clamping structure. By creating a groove on the side of the clamping component near the center of the working area, it adapts to the edge shape of the PCB board. This allows the clamping component to closely fit the edge of the PCB board during pick-and-place operation without covering the Mark point and affecting placement. When the distance from the process edge of the PCB board to the center of the Mark point is <3.5mm, the Mark point can be correctly identified and the placement work can be completed without the need for additional placement carriers. Secondly, the clamping component is made of cold-rolled steel, which has advantages over ordinary steel in that it has high strength, good corrosion resistance, and good processing performance, making the clamping component more stable and durable. Furthermore, by setting a boss, the warpage of the finished clamping component is controlled to ≤10%, ensuring the accuracy and stability of the clamping component and improving placement accuracy. On the other hand, the clamping component can adapt to PCB boards of different specifications, reducing the cost of additional fixtures required due to size mismatch. Finally, this clamping component structure allows for placement work on PCB boards of different sizes, improving the flexibility and applicability of the pick-and-place machine. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of a pick-and-place machine in the prior art;

[0029] Figure 2 This is a top view of a narrow-edge chip mounter track clamping structure according to this utility model;

[0030] Figure 3 This is a side view of a narrow-edge chip mounter track clamping structure according to the present invention (a is the movable track, b is the fixed track);

[0031] Figure 4 This is a top view of the clamping component in Embodiment 4 of this utility model.

[0032] Figure label:

[0033] 1. Pick and place machine; 2. Clamping components; 3. Support platform; 4. Conveyor belt; 5. Z0 sensor; 6. Track; 601. Fixed track; 602. Movable track; 7. Fastener; 8. Groove; 9. Boss. Detailed Implementation

[0034] Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0035] Surface Mount Technology (SMT) is a crucial step in the PCB assembly process. SMT technology is used to mount electronic components onto the surface of a PCB. The SMT process requires a pick-and-place machine, which precisely places components by identifying markers on the PCB. These markers, also known as reference points, provide a common positioning circuit pattern for all steps in the PCB assembly process.

[0036] The PCB board has a process edge, also known as a transfer edge, which is a reserved position to help the PCB board move smoothly on the pick-and-place machine guide during the SMT placement process.

[0037] In common pick-and-place machine designs, the clamping components typically require a distance of 3.5mm or greater from the PCB process edge to the center of the Mark point. When this distance is less than 3.5mm, the machine's clamping components will cover the Mark point, rendering it unusable.

[0038] Based on this, this application provides a narrow-edge chip mounter track clamping structure.

[0039] Example 1

[0040] See Figures 1-4 This embodiment provides a narrow-edge pick-and-place machine track clamping structure, installed on a pick-and-place machine 1. The structure includes a clamping assembly. The pick-and-place machine 1 is an automated device with a central working area for quickly and accurately placing electronic components on a PCB board. The clamping assembly is used to fix the edge of the PCB board during PCB board mounting. The pick-and-place machine 1 mainly consists of a support platform 3, a conveyor belt 4, a Z0 sensor 5, and a track 6. The support platform 3 is used to install and place other components, and the conveyor belt 4 is used for conveying... The PCB board, the Z0 sensor 5 is a sensor in the pick-and-place machine 1 used to determine the starting position of the placement head, the track 6 is the path for the PCB board to move in the pick-and-place machine 1, the support platform 3 is installed at the bottom of the pick-and-place machine 1, the track 6 is installed on the opposite sides above the support platform 3, one side is a fixed track 601, and the opposite side is a movable track 602. The movable track 602 is the movable part of the pick-and-place machine 1. Both the fixed track 601 and the movable track 602 are equipped with the clamping components by fasteners 7.

[0041] The clamping assembly is generally elongated, and the long side of the clamping assembly is in the same direction as the long side of the fixed track 601 and the movable track 602. The side closest to the center of the working area is the clamping area. The clamping assembly is a clamping member 2. Figure 1As can be seen, the clamping part 2 of the existing pick and place machine 1 is a flat strip on both sides, which has the problem of covering and blocking the Mark point. In this structure, the clamping part 2 is improved by setting a groove 8 in the clamping area. By opening the groove 8 to adapt to the edge shape of the PCB board, the clamping part 2 can not only fit tightly to the edge of the PCB board, but also will not cover the Mark point and affect the pick and place.

[0042] In this embodiment, the clamping member 2 has a 10mm length reserved at both ends before the groove 8 is set, and there are multiple grooves 8. The groove 8 is a recessed area formed by vertical cutting of the clamping member 2, the cutting surface is a smooth surface, and the height of the cutting surface is equal to the longitudinal thickness of the clamping member 2. The multiple grooves 8 are evenly distributed along the long side of the clamping member 2, and the clamping area of ​​the clamping member 2 is serrated.

[0043] The design of multiple equally spaced grooves 8 can adapt to the edges of PCB boards of different sizes and shapes, improving the versatility and applicability of the clamping component 2 structure.

[0044] Multiple grooves 8 form multiple straight, flat areas of the same size at the edge of the clamping area of ​​the clamping member 2. Each straight, flat area has a boss 9 (e.g., ...) provided in the direction perpendicular to the long side of the clamping member 2. Figure 4 (as shown); a single boss 9 is distributed between adjacent grooves 8, and the center distance between multiple bosses 9 is equal.

[0045] The protrusion 9 can clamp the PCB board more stably and prevent the clamping part 2 from deforming during the clamping process. The warpage of the clamping part 2 is controlled to be below 10%. In the placement process, excessive warpage may cause inaccurate alignment between the PCB board and the pads, affecting the soldering quality. Controlling the warpage can ensure that the PCB board remains flat during the placement process and improve the soldering accuracy and quality.

[0046] In practical applications, the longitudinal thickness of the boss 9 is equal to the longitudinal thickness of the clamping member 2, so that when the clamping member 2 is installed on the track 6, the contact gap between the two is ≤0.1mm, and when the clamping member 2 clamps the PCB board, the contact gap between the two is ≤0.1mm.

[0047] The thickness of the boss 9 ensures that the clamping part 2 and the boss 9 are evenly distributed, reducing local stress concentration and ensuring that the gap between the pick-and-place machine track and the clamping part 2 is ≤0.1mm, while also reserving space to clamp the PCB board.

[0048] The clamping component 2 is made of cold-rolled steel. Compared with ordinary steel, cold-rolled steel has the advantages of high strength, good corrosion resistance, good processing performance, and is more stable and durable.

[0049] The clamping component 2 needs to be kept straight during the manufacturing process and needs to be blackened. Its function is to prevent rust, prevent wear and tear and block light.

[0050] Specifically, the fastener 7 is a screw, and when the clamping member 2 is installed on the fixed rail 601, 10 screw holes are opened on the side away from the center of the working area, and 10 screw holes matching the clamping member 2 are opened on the fixed rail 601.

[0051] When the clamping member 2 is installed on the movable track 602, six screw holes are opened on the side away from the center of the working area. The movable track 602 has six screw holes that match the clamping member 2. The clamping member 2 is fixed on the track 6 by screws.

[0052] More specifically, the diameter of the screw holes on the clamping member 2 and the track 6 is 8mm.

[0053] The threaded fasteners 7 ensure the stability and reliability of the clamping component 2 structure, reduce vibration and displacement during the placement process, improve placement accuracy, and the screws have a wide range of applications and strong adaptability, reducing the cost of modifying the placement machine 1.

[0054] The working principle of this embodiment is as follows:

[0055] When the transport system of the pick-and-place machine 1 is working normally, after the sensor at the board inlet receives the PCB board inlet signal, the servo motor controls the transport belt 4 to run. The support platform 3 rises on the movable track 602 and the clamping member 2 on the fixed track 601 by receiving the command from the servo controller. The clamping member 2 clamps and fixes the PCB board. The groove 8 on the clamping member 2 is adapted to the edge shape of the PCB board, so that the clamping member 2 can fit tightly to the edge of the PCB board without covering the Mark point and affecting the placement, so that the placement process is completed efficiently.

[0056] This invention features a groove 8 on the side of the clamping component 2 near the center of the working area, which adapts to the edge shape of the PCB board. This allows the clamping component 2 to fit tightly against the edge of the PCB board during the operation of the pick-and-place machine 1 without covering the Mark point and affecting the placement. When the distance from the process edge of the PCB board to the center of the Mark point is less than 3.5mm, the Mark point can be correctly identified and the placement work can be completed without the need for an additional placement carrier. Secondly, the clamping component 2 is made of cold-rolled steel, which has the advantages of high strength, good corrosion resistance, and good processing performance compared to ordinary steel, making the clamping component 2 more stable and durable. By setting the boss 9, the warpage of the finished clamping component 2 is controlled to ≤10%, ensuring the accuracy and stability of the clamping component 2 and improving the placement accuracy.

[0057] Example 2

[0058] See Figures 1-4 This embodiment provides a narrow-edge pick-and-place machine track clamping structure, which is installed on a pick-and-place machine 1. The structure includes a clamping assembly. The pick-and-place machine 1 is an automated device with a working area in the middle, used to quickly and accurately place electronic components on a PCB board. The clamping assembly is used to fix the edge of the PCB board when the pick-and-place machine 1 is performing PCB board mounting. Tracks 6 are installed on opposite sides of the pick-and-place machine 1. The tracks 6 are the paths for the movement of the PCB board in the pick-and-place machine 1. One side is a fixed track 601, and the opposite side is a movable track 602. The movable track 602 is the movable part of the pick-and-place machine 1. Both the fixed track 601 and the movable track 602 are equipped with the clamping assembly by fasteners 7.

[0059] The clamping component is generally elongated, and the long side of the clamping assembly is in the same direction as the long side of the fixed track 601 and the movable track 602. The side closest to the center of the working area is the clamping area, and the clamping assembly is clamping component 2. Figure 1 As can be seen, the clamping part 2 of the existing pick and place machine 1 is a flat strip on both sides, which has the problem of covering and blocking the Mark point. In this structure, the clamping part 2 is improved by setting a groove 8 in the clamping area. By opening the groove 8 to adapt to the edge shape of the PCB board, the clamping part 2 can not only fit tightly to the edge of the PCB board, but also will not cover the Mark point and affect the pick and place.

[0060] In this embodiment, the clamping member 2 has a 10mm length reserved at both ends before the groove 8 is set, and there are multiple grooves 8. The groove 8 is a recessed area formed by vertical cutting of the clamping member 2, the cutting surface is a smooth surface, and the height of the cutting surface is equal to the longitudinal thickness of the clamping member 2. The multiple grooves 8 are evenly distributed along the long side of the clamping member 2, and the clamping area of ​​the clamping member 2 is serrated.

[0061] The design of multiple equally spaced grooves 8 can adapt to the edges of PCB boards of different sizes and shapes, improving the versatility and applicability of the clamping component 2 structure.

[0062] Multiple grooves 8 form multiple straight, flat areas of the same size at the edge of the clamping area of ​​the clamping member 2. Each straight, flat area has a boss 9 (e.g., ...) provided in the direction perpendicular to the long side of the clamping member 2. Figure 4 (as shown); a single boss 9 is distributed between adjacent grooves 8, and the center distance between multiple bosses 9 is equal.

[0063] The protrusion 9 can clamp the PCB board more stably and prevent the clamping part 2 from deforming during the clamping process. The warpage of the clamping part 2 is controlled to be below 10%. In the placement process, excessive warpage may cause inaccurate alignment between the PCB board and the pads, affecting the soldering quality. Controlling the warpage can ensure that the PCB board remains flat during the placement process and improve the soldering accuracy and quality.

[0064] Specifically, the fastener 7 is a screw. When the clamping member 2 is installed on the fixed rail 601, eight screw holes are opened on the side away from the center of the working area. The fixed rail 601 has eight screw holes that match the clamping member 2.

[0065] When the clamping member 2 is installed on the movable track 602, six screw holes are opened on the side away from the center of the working area. The movable track 602 has six screw holes that match the clamping member 2. The clamping member 2 is fixed on the track 6 by screws.

[0066] More specifically, the diameter of the screw holes on the clamping member 2 and the track 6 is 6mm.

[0067] The threaded fasteners 7 ensure the stability and reliability of the clamping component 2 structure, reduce vibration and displacement during the placement process, improve placement accuracy, and the screws have a wide range of applications and strong adaptability, reducing the cost of modifying the placement machine 1.

[0068] The clamping component 2 is made of cold-rolled steel. Compared with ordinary steel, cold-rolled steel has the advantages of high strength, good corrosion resistance, and good processing performance, making it more stable and durable.

[0069] The clamping component 2 needs to be kept straight during the manufacturing process and needs to be blackened. Its function is to prevent rust, prevent wear and tear and block light.

[0070] In practical applications, the longitudinal thickness of the boss 9 is equal to the longitudinal thickness of the clamping member 2, so that when the clamping member 2 is installed on the track 6, the contact gap between the two is ≤0.1mm, and when the clamping member 2 clamps the PCB board, the contact gap between the two is ≤0.1mm.

[0071] The thickness of the boss 9 ensures that the clamping part 2 and the boss 9 are evenly distributed, reducing local stress concentration and ensuring that the gap between the pick-and-place machine track and the clamping part 2 is ≤0.1mm, while also reserving space to clamp the PCB board.

[0072] In this embodiment, when the clamping member 2 is installed on the fixed track 601, its length is 508mm, its width is 15.7mm, and its thickness is 3.2mm; when the clamping member 2 is installed on the movable track 602, its length is 510mm, its width is 15.7mm, and its thickness is 3.2mm.

[0073] The working principle of this embodiment is as follows:

[0074] When the transport system of the pick-and-place machine 1 is working normally, after the sensor at the board inlet receives the PCB board inlet signal, the servo motor controls the transport belt 4 to run. The support platform 3 rises on the movable track 602 and the clamping member 2 on the fixed track 601 by receiving the command from the servo controller. The clamping member 2 clamps and fixes the PCB board. The groove 8 on the clamping member 2 is adapted to the edge shape of the PCB board, so that the clamping member 2 can fit tightly to the edge of the PCB board without covering the Mark point and affecting the placement, so that the placement process is completed efficiently.

[0075] This invention features a groove 8 on the side of the clamping component 2 near the center of the working area, which adapts to the edge shape of the PCB board. This allows the clamping component 2 to fit tightly against the edge of the PCB board during the operation of the pick-and-place machine 1 without covering the Mark point and affecting the placement. When the distance from the process edge of the PCB board to the center of the Mark point is less than 3.5mm, the Mark point can be correctly identified and the placement work can be completed without the need for an additional placement carrier. Secondly, the clamping component 2 is made of cold-rolled steel, which has the advantages of high strength, good corrosion resistance, and good processing performance compared to ordinary materials, making the clamping component 2 more stable and durable. By setting the boss 9, the warpage of the finished clamping component 2 is controlled to ≤10%, ensuring the accuracy and stability of the clamping component 2 and improving the placement accuracy.

[0076] Example 3

[0077] See Figures 1-4 This embodiment provides a narrow-edge pick-and-place machine track clamping structure, which is installed on a pick-and-place machine 1. The structure includes a clamping assembly. The pick-and-place machine 1 is an automated device with a working area in the middle, used to quickly and accurately place electronic components on a PCB board. The clamping assembly is used to fix the edge of the PCB board when the pick-and-place machine 1 is performing PCB board mounting. Tracks 6 are installed on opposite sides of the pick-and-place machine 1. The tracks 6 are the paths for the movement of the PCB board in the pick-and-place machine 1. One side is a fixed track 601, and the opposite side is a movable track 602. The movable track 602 is the movable part of the pick-and-place machine 1. Both the fixed track 601 and the movable track 602 are equipped with the clamping assembly by fasteners 7.

[0078] The clamping assembly is generally elongated, and the long side of the clamping assembly is in the same direction as the long side of the fixed track 601 and the movable track 602. The side closest to the center of the working area is the clamping area. The clamping assembly is a clamping member 2. Figure 1 As can be seen, the clamping part 2 of the existing pick-and-place machine 1 is a flat strip on both sides, which has the problem of covering and blocking the Mark point. In this structure, the clamping part 2 is improved by setting a groove 8 in the clamping area. By opening the groove 8 to adapt to the edge shape of the PCB board, the clamping part 2 can fit tightly to the edge of the PCB board without covering the Mark point and affecting the placement.

[0079] In this embodiment, the clamping member 2 has a 10mm length reserved at both ends before the groove 8 is set, and there are multiple grooves 8. The groove 8 is a recessed area formed by vertical cutting of the clamping member 2, the cutting surface is a smooth surface, and the height of the cutting surface is equal to the longitudinal thickness of the clamping member 2. The multiple grooves 8 are evenly distributed along the long side of the clamping member 2, and the clamping area of ​​the clamping member 2 is serrated.

[0080] The design of multiple equally spaced grooves 8 can adapt to the edges of PCB boards of different sizes and shapes, improving the versatility and applicability of the clamping component 2 structure.

[0081] Multiple grooves 8 form multiple straight, flat areas of the same size at the edge of the clamping area of ​​the clamping member 2. Each straight, flat area has a boss 9 (e.g., ...) provided in the direction perpendicular to the long side of the clamping member 2. Figure 4 (as shown); a single boss 9 is distributed between adjacent grooves 8, and the center distance between multiple bosses 9 is equal.

[0082] The protrusion 9 can clamp the PCB board more stably and prevent the clamping part 2 from deforming during the clamping process. The warpage of the clamping part 2 is controlled to be below 10%. In the placement process, excessive warpage may cause inaccurate alignment between the PCB board and the pads, affecting the soldering quality. Controlling the warpage can ensure that the PCB board remains flat during the placement process and improve the soldering accuracy and quality.

[0083] The clamping component 2 is made of cold-rolled steel. Compared with ordinary steel, cold-rolled steel has the advantages of high strength, good corrosion resistance, and good processing performance, making it more stable and durable.

[0084] The clamping component 2 needs to be kept straight during the manufacturing process and needs to be blackened. Its function is to prevent rust, prevent wear and tear and block light.

[0085] In practical applications, the longitudinal thickness of the boss 9 is equal to the longitudinal thickness of the clamping member 2, so that when the clamping member 2 is installed on the track 6, the contact gap between the two is ≤0.1mm. When the clamping member 2 clamps the PCB board, the contact gap between the two is ≤0.1mm. The warpage and contact gap requirements of the finished clamping member 2 are all to ensure the accuracy and stability of the clamping member 2, thereby improving the placement accuracy.

[0086] Furthermore, when the clamping member 2 is installed on the fixed track 601, it has a length of 508mm, a width of 15.7mm, and a thickness of 3.2mm; when the clamping member 2 is installed on the movable track 602, it has a length of 510mm, a width of 15.7mm, and a thickness of 3.2mm.

[0087] In this embodiment, the top view of the groove 8 is rectangular, and a single groove 8 forms three vertical cutting surfaces on the clamping member 2. The two adjacent cutting surfaces are perpendicular to each other, and the top view length is 10mm and the width is 2.5mm.

[0088] The rectangular groove 8 is designed to precisely fit the shape of the PCB board edge, which helps to ensure a tight fit between the clamping part 2 and the PCB board and improves the stability of the clamping.

[0089] The working principle of this embodiment is as follows:

[0090] When the transport system of the pick-and-place machine 1 is working normally, after the sensor at the board inlet receives the PCB board inlet signal, the servo motor controls the transport belt 4 to run. The support platform 3 rises on the movable track 602 and the clamping member 2 on the fixed track 601 by receiving the command from the servo controller. The clamping member 2 clamps and fixes the PCB board. The groove 8 on the clamping member 2 is adapted to the edge shape of the PCB board, so that the clamping member 2 can fit tightly to the edge of the PCB board without covering the Mark point and affecting the placement, so that the placement process is completed efficiently.

[0091] This invention features a rectangular groove 8 on the side of the clamping component 2 near the center of the working area, adapting to the edge shape of the PCB board. This allows the clamping component 2 to fit tightly against the edge of the PCB board during the operation of the pick-and-place machine 1 without covering the Mark point and affecting placement. When the distance from the process edge of the PCB board to the center of the Mark point is less than 3.5mm, the Mark point can be correctly identified and the placement work can be completed without the need for an additional placement carrier, reducing the cost of additional fixtures required due to specification mismatch. Secondly, the clamping component 2 is made of cold-rolled steel, which has advantages over ordinary steel, such as high strength, good corrosion resistance, and good processing performance, making the clamping component 2 more stable and durable. Furthermore, the presence of a boss 9 controls the warpage of the finished clamping component 2 to ≤10%, ensuring the accuracy and stability of the clamping component 2 and improving placement accuracy. Finally, this clamping component structure allows for placement work on PCB boards of different sizes, improving the flexibility and applicability of the pick-and-place machine 1.

[0092] Example 4

[0093] See Figures 1-4 This embodiment provides a narrow-edge pick-and-place machine track clamping structure, which is installed on a pick-and-place machine 1. The structure includes a clamping assembly. The pick-and-place machine 1 is an automated device with a working area in the middle, used to quickly and accurately place electronic components on a PCB board. The clamping assembly is used to fix the edge of the PCB board when the pick-and-place machine 1 is performing PCB board mounting. Tracks 6 are installed on opposite sides of the pick-and-place machine 1. The tracks 6 are the paths for the movement of the PCB board in the pick-and-place machine 1. One side is a fixed track 601, and the other side is a movable track 602. The movable track 602 is the movable part of the pick-and-place machine 1. Both the fixed track 601 and the movable track 602 are equipped with the clamping assembly by fasteners 7.

[0094] The clamping assembly is generally elongated, and the long side of the clamping assembly is in the same direction as the long side of the fixed track 601 and the movable track 602. The side closest to the center of the working area is the clamping area. The clamping assembly is a clamping member 2. Figure 1 As can be seen, the clamping part 2 of the existing pick-and-place machine 1 is a flat strip on both sides, which has the problem of covering and blocking the Mark point. In this structure, the clamping part 2 is improved by setting a groove 8 in the clamping area. By opening the groove 8 to adapt to the edge shape of the PCB board, the clamping part 2 can not only fit tightly to the edge of the PCB board, but also not cover the Mark point and affect the work.

[0095] In this embodiment, the clamping member 2 has a 10mm length reserved at both ends before the groove 8 is set. There are multiple grooves 8. The groove 8 is a recessed area formed by vertical cutting of the clamping member 2. The cutting surface is a smooth surface. The height of the cutting surface is equal to the longitudinal thickness of the clamping member 2. The multiple grooves 8 are evenly distributed along the long side of the clamping member 2, with a spacing of 10mm. The center distance between two adjacent grooves 8 is 20mm. The clamping area of ​​the clamping member 2 is serrated.

[0096] The design of multiple equally spaced grooves 8 can adapt to the edges of PCB boards of different sizes and shapes, improving the versatility and applicability of the clamping component 2 structure.

[0097] Multiple grooves 8 form multiple straight, flat areas of the same size at the edge of the clamping area of ​​the clamping member 2. Each straight, flat area has a boss 9 (e.g., ...) provided in the direction perpendicular to the long side of the clamping member 2. Figure 4 (as shown); a single boss 9 is distributed between adjacent grooves 8, and the center distance between multiple bosses 9 is equal.

[0098] The protrusion 9 can clamp the PCB board more stably and prevent the clamping part 2 from deforming during the clamping process. The warpage of the clamping part 2 is controlled to be below 10%. In the placement process, excessive warpage may cause inaccurate alignment between the PCB board and the pads, affecting the soldering quality. Controlling the warpage can ensure that the PCB board remains flat during the placement process and improve the soldering accuracy and quality.

[0099] The clamping component 2 is made of cold-rolled steel. Compared with ordinary steel, cold-rolled steel has the advantages of high strength, good corrosion resistance, and good processing performance, making it more stable and durable.

[0100] The clamping component 2 needs to be kept straight during the manufacturing process and needs to be blackened. Its function is to prevent rust, prevent wear and tear and block light.

[0101] In practical applications, the longitudinal thickness of the boss 9 is equal to the longitudinal thickness of the clamping member 2, so that when the clamping member 2 is installed on the track 6, the contact gap between the two is ≤0.1mm. When the clamping member 2 clamps the PCB board, the contact gap between the two is ≤0.1mm. The warpage and contact gap requirements of the finished clamping member 2 are all to ensure the accuracy and stability of the clamping member 2, thereby improving the placement accuracy.

[0102] Furthermore, when the clamping member 2 is installed on the fixed track 601, it has a length of 508mm, a width of 15.7mm, and a thickness of 3.2mm; when the clamping member 2 is installed on the movable track 602, it has a length of 510mm, a width of 15.7mm, and a thickness of 3.2mm.

[0103] In this embodiment, the groove 8 has two rounded corners, and each groove 8 forms a vertical cut surface on the clamping member 2, wherein the radius of the rounded corner is 2.5mm, and the overall length of the groove 8 is 10mm.

[0104] The rounded corners can reduce stress concentration at the groove 8, avoid fatigue or fracture of the clamping part 2 due to excessive stress, and thus improve the durability and reliability of the clamping part 2.

[0105] The working principle of this embodiment is as follows:

[0106] When the transport system of the pick-and-place machine 1 is working normally, after the sensor at the board inlet receives the PCB board inlet signal, the servo motor controls the transport belt 4 to run. The support platform 3 rises on the movable track 602 and the clamping member 2 on the fixed track 601 by receiving the command from the servo controller. The clamping member 2 clamps and fixes the PCB board. The clamping member 2 has a rounded groove 8 to adapt to the edge shape of the PCB board, so that the clamping member 2 can fit tightly to the edge of the PCB board without covering the Mark point and affecting the placement, so that the placement process is completed efficiently.

[0107] This invention features a rounded groove 8 on the side of the clamping component 2 near the center of the working area, adapting to the edge shape of the PCB board. This allows the clamping component 2 to fit tightly against the edge of the PCB board during the operation of the pick-and-place machine 1 without covering the Mark point and affecting placement. When the distance from the process edge of the PCB board to the center of the Mark point is less than 3.5mm, the Mark point can be correctly identified and the placement work can be completed without the need for additional placement carriers, reducing the cost of additional fixtures required due to specification mismatch. Secondly, the clamping component 2 is made of cold-rolled steel, which has advantages over ordinary steel, such as high strength, good corrosion resistance, and good processing performance, making the clamping component 2 more stable and durable. By setting the boss 9, the warpage of the finished clamping component 2 is controlled to ≤10%, ensuring the accuracy and stability of the clamping component 2 and improving placement accuracy. This clamping component structure allows for placement operations on PCB boards of different sizes, improving the flexibility and applicability of the pick-and-place machine 1.

[0108] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0109] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0110] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A narrow-edge pick-and-place machine track clamping structure, mounted on a pick-and-place machine (1), characterized in that: The structure includes a clamping assembly, the middle of the pick and place machine (1) is the working area, and the pick and place machine (1) is equipped with rails (6) on opposite sides of the working area, one side of which is a fixed rail (601) and the opposite side is a movable rail (602); Both the fixed track (601) and the movable track (602) are provided with the clamping component by fasteners (7). The clamping component is elongated in shape, and the long side of the clamping component is in the same direction as the long side of the fixed track (601) and the movable track (602). The clamping assembly has a clamping area on the side near the center of the working area, and the clamping area is provided with a groove (8).

2. The narrow-edge chip mounter track clamping structure according to claim 1, characterized in that: The clamping assembly includes a clamping member (2) having a plurality of said grooves (8).

3. The narrow-edge chip mounter track clamping structure according to claim 2, characterized in that: The groove (8) is a recessed area formed by the vertical cutting of the clamping member (2), and the cutting surface is a smooth surface.

4. The narrow-edge chip mounter track clamping structure according to claim 3, characterized in that: The height of the cut surface is equal to the longitudinal thickness of the clamping member (2).

5. The narrow-edge chip mounter track clamping structure according to claim 3, characterized in that: The plurality of grooves (8) are evenly distributed along the long side of the clamping member (2).

6. The narrow-edge chip mounter track clamping structure according to claim 5, characterized in that: Multiple grooves (8) form multiple straight flat areas of the same size at the edge of the clamping area of ​​the clamping member (2), and a boss (9) is provided on the upper surface of the straight flat area.

7. The narrow-edge chip mounter track clamping structure according to claim 6, characterized in that: The protrusion (9) is a long strip with parallel long sides. A single protrusion (9) is distributed between adjacent grooves (8), and the center distance of multiple protrusions (9) is equal.

8. The narrow-edge chip mounter track clamping structure according to claim 5, characterized in that: The longitudinal thickness of the boss (9) is equal to the longitudinal thickness of the clamping member (2).

9. A narrow-edge chip mounter track clamping structure according to any one of claims 3-6, characterized in that: The groove (8) has a rectangular shape when viewed from above. Each groove (8) forms three vertical cutting surfaces on the clamping member (2), and two adjacent cutting surfaces are perpendicular to each other.

10. A narrow-edge chip mounter track clamping structure according to any one of claims 3-6, characterized in that: The groove (8) has two rounded corners, and each groove (8) forms a vertical cut surface on the clamping member (2).

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