Chip Mounting Machine

Abstract

The present invention relates to a chip mounter, including a machine base, a machine head and a material transfer mechanism, wherein the machine head is movably arranged on the machine base, and the material transfer mechanism includes a support assembly, a traction assembly and a conveyor belt, wherein the support assembly is connected to the machine base, and the traction assembly and the conveyor belt are respectively arranged on the support assembly; the traction assembly includes a switching assembly and a traction member linked to the switching assembly; the chip mounter has a first working state and a second working state, and in the first working state, the conveyor belt is used to drive the hard board to move along the feeding direction; in the second working state, the traction assembly is used to pull the soft board to move along the feeding direction. The chip mounter of the present application can switch to the first working state through the switching assembly when mounting a hard board; and can switch to the second working state through the switching assembly when mounting a soft board, thereby utilizing one device to be compatible with the mounting processing of hard and soft boards, thereby improving the integration and compatibility of the chip mounter, and compared with two independent chip mount devices, can significantly reduce the cost and occupied space of the equipment.

Description

Technical Field

[0001] The present invention relates to the field of chip placement technology, in particular to a chip placement machine. Background Art

[0002] Automatic placement machines are used to place electronic components at high speed and precision. They are the most critical and complex equipment in the entire SMT (Surface Mounted Technology) production.

[0003] In the related technology, the circuit substrates used for mounting surface components generally include two types: soft boards and hard boards. The most common soft boards are flexible printed circuits, and the most common hard boards are printed circuits. During the mounting process, different mounting equipment is usually required for soft boards and hard boards, and the equipment cost is relatively high. Summary of the invention

[0004] The embodiment of the present invention provides a chip mounter to reduce the cost of chip mount equipment.

[0005] A chip mounter, comprising:

[0006] Machine base;

[0007] A machine head, movably disposed on the machine base; and

[0008] The material moving mechanism comprises a supporting assembly, a traction assembly and a conveyor belt, wherein the supporting assembly is connected to the machine base, and the traction assembly and the conveyor belt are respectively arranged on the supporting assembly; the traction assembly comprises a switching assembly and a traction member linked to the switching assembly; the placement machine has a first working state and a second working state, in the first working state, the switching assembly drives the traction member away from the conveyor belt and stops, and the conveyor belt is used to drive the hard board to move along the feeding direction; in the second working state, the switching assembly drives the traction member to approach the conveyor belt and abut against the soft board, and the traction assembly is used to pull the soft board to move along the feeding direction.

[0009] In one embodiment, the traction assembly includes a first driving member and a mounting platform linked to the output end of the first driving member, and the switching assembly is arranged on the mounting platform. In the second working state, the first driving member drives the mounting platform, the switching assembly and the traction member to reciprocate along the feeding direction; the switching assembly drives the traction member to move relative to the supporting assembly along the first direction to approach or move away from the conveyor belt.

[0010] In one embodiment, the first direction is perpendicular to the feeding direction.

[0011] In one embodiment, the traction component includes a second driving member and a clamping seat linked to the output end of the switching component, the second driving member is connected to the clamping seat, and the traction member is linked to the output end of the second driving member to move relative to the clamping seat and clamp the soft board.

[0012] In one embodiment, the second driving member drives the traction member to rise and fall in a first direction to move away from the clamping seat to release the soft board, or to move closer to the clamping seat to clamp the soft board, and the first direction is perpendicular to the feeding direction.

[0013] In one embodiment, the support assembly includes a support table and a limit plate detachably connected to the edge of the support table, the limit plate covers the edge of the conveyor belt and is spaced apart from the edge of the conveyor belt to form a limit groove; in the first working state, the thickness of the hard plate is greater than the height of the limit groove, and the limit plate is used to limit the movement range of the hard plate in the second direction, the second direction and the first direction are perpendicular to the feeding direction; in the second working state, the first driving member pulls the soft plate through the traction member to move in the limit groove along the feeding direction.

[0014] In one embodiment, the support assembly includes a guide wheel rotatably connected to the limit plate or the support platform, and the guide wheels are respectively provided on both sides of the support platform along the loading direction. In the first working state, the guide wheel is used to roll in contact with the hard plate to limit the movement range of the hard plate in the second direction.

[0015] In one embodiment, the support table is provided with at least two patch areas at intervals along the loading direction, the patch area is provided with an air cavity, and the conveyor belt is provided with a plurality of air holes arranged at intervals. In the second working state, the portion of the conveyor belt where the air holes are located covers the air cavity, so that the air cavity is connected with the plurality of air holes, so as to generate negative pressure in the air cavity and adsorb and fix the soft board to the patch area.

[0016] In one embodiment, the material moving mechanism includes a blocking component connected to the support table, the blocking component includes a third driving member and a stop member linked to the output end of the third driving member, and the stop member is connected to the edge of the support table; in a first working state, the third driving member drives the stop member to move along the second direction and limits the hard board to the patch area.

[0017] In one embodiment, the material moving mechanism includes a correction component connected to the support table, the correction component includes a fourth driving member and a correction member linked to the output end of the fourth driving member, and the correction member is elastically connected to the output end of the fourth driving member; in a first working state, the fourth driving member drives the correction member to move along the second direction to abut against one side of the hard board, so that the other side of the hard board abuts against the limiting plate to position the hard board in the patch area.

[0018] The above chip mounter includes a base, a head and a material transfer mechanism. The head is movably arranged on the base. The material transfer mechanism includes a support assembly, a traction assembly and a conveyor belt. The support assembly is connected to the base. The traction assembly and the conveyor belt are respectively arranged on the support assembly; the traction assembly includes a switching assembly and a traction member linked to the switching assembly; the chip mounter has a first working state and a second working state. In the first working state, the switching assembly drives the traction member away from the conveyor belt and stops, and the conveyor belt is used to drive the hard board to move along the feeding direction; in the second working state, the switching assembly drives the traction member to approach the conveyor belt and abut against the soft board, and the traction assembly is used to pull the soft board to move along the feeding direction. The chip mounter of the present application can be switched to the first working state by the switching assembly when mounting a hard board; when mounting a soft board, it can be switched to the second working state by the switching assembly, thereby using one device to be compatible with the mounting processing of hard and soft boards, improving the integration and compatibility of the chip mounter, and compared with two independent chip mount devices, it can significantly reduce the cost and occupied space of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of a chip mounter according to an embodiment;

[0021] Figure 2 for Figure 1 The top view of the chip mounter after some structures are removed;

[0022] Figure 3 A schematic diagram of a head of a chip mounter according to an embodiment;

[0023] Figure 4 Schematic diagram of a material transfer mechanism of a chip mounter according to an embodiment;

[0024] Figure 5 for Figure 4An enlarged schematic diagram of point A of the material transfer mechanism shown;

[0025] Figure 6 It is a top view of a material moving mechanism of an embodiment after removing part of the structure;

[0026] Figure 7 for Figure 4 An enlarged schematic diagram of point B of the material transfer mechanism shown;

[0027] Figure 8 A schematic diagram of a blocking component of a chip mounter according to an embodiment;

[0028] Fig. 9 for Figure 4 An enlarged schematic diagram of point C of the material transfer mechanism is shown.

[0029] Reference numerals:

[0030] SMT machine 10, machine base 11, machine head 13, mounting frame 131, linear motor 133, suction head 135, material moving mechanism 15, support assembly 151, limiting groove 151a, air cavity 151b, support table 1511, limiting plate 1513, blocking assembly 1514, third driving member 15141, stopping member 15143, correction assembly 1515, correction member 15151, guide wheel 1517, traction assembly 153, switching assembly 1531, traction member 1533, first driving member 1535, mounting table 1537, second driving member 1538, clamping seat 1539, conveyor belt 155, air hole 155a DETAILED DESCRIPTION

[0031] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Preferred embodiments of the present invention are provided in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0034] refer to Figure 1 The present invention discloses a chip mounter 10, which can be used to mount surface mount components on a soft board or a hard board. Surface mount components include but are not limited to lamp beads. A soft board can also be called a flexible circuit substrate, which is usually thinner and less rigid. FPC (Flexible Printed Circuit) is a typical soft board. Before the mounting process, the continuous soft board is usually rolled into a roll. During the mounting process, the continuous soft board is gradually unfolded and transferred to the mounting area of ​​the chip mounter 10; after the soft board in the mounting area has been mounted with surface mount components, it can be pulled out of the mounting area and the mounting area can be covered by the unmounted soft board to continue the mounting operation, thereby realizing continuous mounting. After the surface mount components are mounted, the continuous soft board can also be extended from the chip mounter 10 and can be wound into a roll to facilitate handling and transportation.

[0035] Common rigid boards include printed circuit boards, which are much more rigid than flexible boards and are generally processed by mounting surface mount components in blocks. That is, independent rigid boards are transferred to the mounting area of ​​the mounting machine 10 for mounting processing. After a rigid board is mounted, it can be removed and another unmounted rigid board can be placed, thereby realizing the mounting processing of the rigid board.

[0036] refer to Figure 2 and Figure 3The SMT machine 10 of the present application includes a base 11, a head 13 and a material transfer mechanism 15. The base 11 can adopt a frame structure to provide rigid support for the entire device. The head 13 is movably arranged on the base 11. In some embodiments, the head 13 includes a mounting frame 131 and a plurality of linear motors 133 and a plurality of suction heads 135 arranged on the mounting frame 131. The mounting frame 131 can adopt an integrated molding structure to enhance the rigidity of the overall structure and serve as an assembly reference for other components to ensure the assembly accuracy of these components. A plurality of linear motors 133, for example 10, can be arranged on the mounting frame 131, and the output end of each linear motor 133 corresponds to a linkage with a suction head 135. The suction head 135 is connected to a negative pressure generating device, such as a vacuum pumping device. After the linear motor 133 drives the suction head 135 to descend, it can absorb surface mount components such as lamp beads; the linear motor 133 can then drive the suction head 135 with the surface mount components to rise; the head 13 then drives the suction head 135 to move to the mounting area of ​​the mounting machine 10, and then mounts the surface mount components onto the flexible board or the hard board.

[0037] Continue to refer Figure 2 The placement machine 10 may include more than two groups of material transfer mechanisms 15, the material feeding directions of the two groups of material transfer mechanisms 15 are arranged in parallel, and each group of material transfer mechanisms 15 may correspond to two heads 13 working in parallel. Figure 2 In the illustrated embodiment, the placement machine 10 includes two groups of material transfer mechanisms 15, and the entire placement machine 10 is equipped with four heads 13. Parallel operation can be simply understood as two heads 13 can work independently and do not affect each other. When two heads 13 working in parallel are set corresponding to each group of material transfer mechanisms 15, the movement stroke of the head 13 can be set shorter, and the length of the beam structure used to support the movement of each head 13 can also be shortened to ensure the structural rigidity and dimensional accuracy of the beam, prevent the beam from being too long and deformed, and reduce the placement accuracy of the head 13. Moreover, the same staff member can operate the two heads 13 on the same side, and the two parts of the same continuous soft board or two hard boards can be placed at the same time. Compared with a single head 13, the two heads 13 working in parallel can significantly improve the efficiency of placement.

[0038] refer to Figure 4 The material transfer mechanism 15 includes a support assembly 151, a traction assembly 153 and a conveyor belt 155. The support assembly 151 is connected to the machine base 11, and the traction assembly 153 and the conveyor belt 155 are respectively arranged on the support assembly 151. Figure 5The traction component 153 includes a switching component 1531 and a traction member 1533 linked to the switching component 1531. The placement machine 10 has a first working state and a second working state. In the first working state, the switching component 1531 drives the traction member 1533 away from the conveyor belt 155 and stops, and the conveyor belt 155 can use friction to drive the hard board to move along the feeding direction. In the second working state, the switching component 1531 drives the traction member 1533 to approach the conveyor belt 155 and abut against the soft board, and the traction component 153 is used to pull the soft board to move along the feeding direction. In other words, during the hard board mounting process, the operator can set the mounting machine 10 to the first working state, so that the traction member 1533 used to pull the soft board to move is away from the conveyor belt 155 to prevent interference with the movement of the hard board; during the soft board mounting process, the mounting machine 10 can be set to the second working state, at which time the conveyor belt 155 and its driving mechanism can stop working, and the traction component 153 is used to pull the soft board to move along the loading direction, and then reach the mounting area for mounting processing.

[0039] It is understandable that the friction between the conveyor belt 155 and the soft board should not be too large to avoid too much resistance to the soft board caused by the conveyor belt 155 in the second working state. Of course, there needs to be an appropriate static friction between the conveyor belt 155 and the hard board to prevent the hard board from slipping on the conveyor belt 155 in the first working state.

[0040] The above-mentioned placement machine 10 includes a base 11, a head 13 and a material transfer mechanism 15. The head 13 is movably arranged on the base 11. The material transfer mechanism 15 includes a support component 151, a traction component 153 and a conveyor belt 155. The support component 151 is connected to the base 11, and the traction component 153 and the conveyor belt 155 are respectively arranged on the support component 151; the traction component 153 includes a switching component 1531 and a traction member 1533 linked to the switching mechanism; the placement machine 10 has a first working state and a second working state. In the first working state, the switching component 1531 drives the traction member 1533 away from the conveyor belt 155 and stops, and the conveyor belt 155 is used to drive the hard board to move along the feeding direction; in the second working state, the switching component 1531 drives the traction member 1533 to approach the conveyor belt 155 and abut against the soft board, and the traction component 153 is used to pull the soft board to move along the feeding direction. The placement machine 10 of the present application can be switched to the first working state by means of the switching component 1531 when mounting a hard board; and can be switched to the second working state by means of the switching component 1531 when mounting a soft board, thereby utilizing one device to be compatible with the placement processing of both hard and soft boards, thereby improving the integration and compatibility of the placement machine 10, and compared with two independent placement devices, can significantly reduce the cost and occupied space of the equipment.

[0041] Continue to refer Figure 4 and Figure 5, the traction component 153 includes a first driving member 1535 and a mounting platform 1537 linked to the output end of the first driving member 1535, and the switching component 1531 is arranged on the mounting platform 1537. In the second working state, the first driving member 1535 drives the mounting platform 1537, the switching component 1531 and the traction member 1533 to reciprocate along the feeding direction. The first driving member 1535 can be a stepping motor, and the motor shaft of the stepping motor is the output end. It can drive the mounting platform 1537 and the traction member 1533 connected to the mounting platform 1537 to move along the feeding direction through a belt transmission structure. In other embodiments, the first driving member 1535 can also be a cylinder or a hydraulic cylinder, and the piston rod of the cylinder or the hydraulic cylinder is the output end.

[0042] exist Figure 5 In the illustrated embodiment, the switching assembly 1531 uses a cylinder as a power source, and its output end can drive the traction member 1533 to rise and fall relative to the support assembly 151 along the first direction, and then approach or move away from the conveyor belt 155 along the first direction. Further, the first direction can be perpendicular to the feeding direction. Of course, in other embodiments, the first direction and the feeding direction can form other angles.

[0043] When the SMT machine 10 is in the first working state, i.e., when mounting a hard board, the traction member 1533 is away from the conveyor belt 155 to avoid interfering with the hard board transported by the conveyor belt 155. When the SMT machine 10 is in the second working state, i.e., when mounting a soft board, the traction member 1533 is closer to the conveyor belt 155 than in the first working state, so that the soft board is pulled along the feeding direction by the traction member 1533. In other embodiments, the switching component 1531 can be replaced by a motor combined with a threaded transmission structure, or a motor combined with a gear transmission structure, which will not be described here.

[0044] The traction component 153 may further include a second driving member 1538 and a clamping seat 1539 linked to the output end of the switching component 1531, the second driving member 1538 is connected to the clamping seat 1539, and the traction member 1533 is linked to the output end of the second driving member 1538 to move relative to the clamping seat 1539 and clamp the soft board. Specifically, the second driving member 1538 can drive the traction member 1533 to rise and fall in the first direction to move away from the clamping seat 1539 to release the soft board, or to move close to the clamping seat 1539 to clamp the soft board, and the first direction is perpendicular to the feeding direction. Of course, in other embodiments, the first direction can form other angles with the feeding direction.

[0045] The clamping seat 1539 may be in the shape of a long strip and may extend from one end of the support assembly 151 across the conveyor belt 155 to the other end opposite to the support assembly 151 along the second direction, i.e., the width direction of the conveyor belt 155. The second driving member 1538 may also be a cylinder, the output end of which is detachably connected to the traction member 1533, so that different traction members 1533 may be adaptively replaced according to the structure and size of the soft board to match different soft boards, thereby improving the versatility of the placement machine 10. For example, a waist-shaped hole (not marked) is provided in the traction member 1533, and the traction member 1533 is fixed to the output end of the second driving member 1538 by a fastening bolt (not shown in the figure). After adjusting the relative position of the traction member 1533 and the output end of the second driving member 1538 by using the waist-shaped hole, soft boards of different widths can be adapted, thereby improving the versatility and compatibility of the placement machine 10. In the first working state, the switching component 1531 drives the component connected to its output end to move in the first direction, at least so that the traction member 1533 and the clamping seat 1539 are together away from the conveyor belt 155 to prevent interference with the hard board conveyed by the conveyor belt 155; in the second working state, the switching component 1531 drives the component connected to its output end to move in the first direction, at least so that the traction member 1533 and the clamping seat 1539 are together close to the conveyor belt 155, and the second driving member 1538 drives the traction member 1533 to approach the clamping seat 1539 to clamp the soft board between the traction member 1533 and the clamping seat 1539, and then pulls the soft board to move along the feeding direction through the first driving member 1535 and the mounting platform 1537.

[0046] Furthermore, at least one of the traction member 1533 and the clamping seat 1539 can be provided with a flexible body such as a silicone member or a rubber member, and the flexible body can contact and squeeze the soft board to obtain a relatively large friction force to smoothly pull the soft board to move and avoid scratching the surface of the soft board.

[0047] Of course, in other embodiments, the second driving member 1538 can be replaced by a motor combined with a threaded transmission structure, or a motor combined with a gear transmission structure, which will not be described in detail here.

[0048] refer to Figure 6 and Figure 7, the support assembly 151 may include a support platform 1511 and a limit plate 1513 detachably connected to the edge of the support platform 1511. The limit plate 1513 covers the edge of the conveyor belt 155 and is spaced from the edge of the conveyor belt 155 to form a limit groove 151a between the limit plate 1513 and the conveyor belt 155. In the first working state, the thickness of the hard plate is greater than the height of the limit groove 151a so that it will not be stuck in the limit groove 151a. The limit plate 1513 is used to limit the movement range of the hard plate in the second direction, thereby limiting and guiding the movement of the hard plate in the feeding direction. The second direction and the first direction are perpendicular to the feeding direction. In the second working state, the first driving member 1535 pulls the soft plate to move along the feeding direction in the limit groove 151a through the traction member 1533.

[0049] refer to Figure 6 , the support table 1511 can be detachably connected to the limiting plates 1513 on the opposite sides of the second direction. The length direction of the support table 1511 is the feeding direction. The limiting plate 1513 is in the shape of a long strip, and its width is much smaller than the width of the support table 1511. For example, the ratio of the width of the limiting plate 1513 to the width of the support table 1511 is less than 1:10. The limiting plate 1513 and the support table 1511 form a limiting groove 151a for accommodating the edge of the continuous soft board, and the limiting groove 151a extends along the feeding direction of the continuous soft board. The height of the limiting groove 151a can be equivalent to the thickness of the continuous soft board to prevent the continuous soft board from being deformed and warped during the feeding process. The limiting plate 1513 can be detachably connected by the waist-shaped hole and the threaded fastener, for example, the threaded fastener can be passed through the waist-shaped hole and connected to the support platform 1511, so as to facilitate the adjustment of the width of the two relative limiting plates 1513 to adapt to the mounting processing of continuous soft boards of different widths. Of course, this method can also adjust the distance between the two relative limiting plates 1513 in the width direction of the support platform 1511, so as to adapt to hard boards of different widths and improve the versatility of the mounting machine 10.

[0050] The surface of the support platform 1511 can be a flat and smooth plane to reduce the sliding friction between the support platform 1511 and the conveyor belt 155 and reduce the movement resistance of the conveyor belt 155. Of course, the surface of the side of the conveyor belt 155 facing the support platform 1511 can be relatively smooth to reduce the resistance of the conveyor belt movement, and the side of the conveyor belt away from the support platform 1511 can have a suitable roughness to prevent the hard board from slipping relative to the conveyor belt 155 and avoid causing excessive resistance to the movement of the soft board.

[0051] The support platform 1511 may be provided with an air cavity 151b for connecting to the negative pressure generating device, and the air cavity 151b is provided corresponding to the patch area. For example, the support platform 1511 may be provided with two patch areas at intervals along the feeding direction, and the two patch areas correspond to the two machine heads 13, and the patch areas correspond to the air cavity 151b. Figure 7 , the conveyor belt 155 is provided with a plurality of air holes 155a arranged at intervals, and the air holes 155a can be arranged in an array on the conveyor belt 155, and the aperture of the air holes 155a is much smaller than the width of the air cavity 151b, for example, the aperture of the air holes 155a and the width of the air cavity 151b are 1:10~1:20, so as to reduce vacuum leakage and ensure the adsorption force on the soft board. In the second working state, the portion where the air holes 155a of the conveyor belt 155 are located covers the air cavity 151b, so that the air cavity 151b is connected with the plurality of air holes 155a, so as to generate negative pressure in the air cavity 151b and the air holes 155a and adsorb and fix the soft board to the patch area. When the side of the conveyor belt 155 facing the support table 1511 is a relatively smooth surface, the fit between the conveyor belt 155 and the surface of the support table 1511 can be ensured, and the adsorption effect of the air holes 155a on the soft board can be ensured.

[0052] During the continuous soft board mounting process, that is, when the placement machine 10 is in the second working state, the switching component 1531 drives the traction member 1533 and the clamping seat 1539 to approach the conveyor belt 155 and stop at a preset position. The conveyor belt 155 can stop at a preset position so that the air cavity 151b corresponds to and communicates with the air hole 155a area of ​​the conveyor belt 155. The unmounted continuous soft board extends toward the support platform 1511 and passes through the limiting groove 151a. The first driving member 1535 drives the switching component 1531, the traction member 1533, the second driving member 1538 and the clamping seat 1539 to move toward the unmounted continuous soft board through the mounting platform 1537. The second driving member 1538 drives the traction member 1533 to rise relative to the clamping seat 1539 so that the continuous soft board can be passed between the traction member 1533 and the clamping seat 1539; the second driving member 1538 then drives the traction member 1533 to descend relative to the clamping seat 1539 to clamp the continuous soft board; the first driving member 1535 then drives the continuous soft board to move in the limiting groove 151a along the loading direction to the area where the air cavity 151b of the support table 1511 is located, that is, the patch area, and stops through the traction member 1533. In the patch area, the negative pressure generating device can generate negative pressure between the conveyor belt 155 and the table surface of the support table 1511, and between the continuous soft board and the conveyor belt 155, so that the continuous soft board can be reliably adsorbed to the conveyor belt 155 and the support table 1511, and the limiting plate 1513 and the limiting groove 151a can be used to prevent the continuous soft board from deforming and bending during the loading process, so that the continuous soft board can be spread evenly on the conveyor belt 155, ensuring the relative position accuracy of the machine head 13 and the continuous soft board, and then ensuring the mounting accuracy of the machine head 13.

[0053] The air cavity 151b and the air hole 155a are arranged correspondingly, which can reduce the positioning accuracy requirement of the air hole 155a, that is, a relatively large air cavity 151b is used to connect multiple air holes 155a, thereby avoiding opening air holes 155a on the support platform 1511 and requiring the air holes 155a on the two components to accurately correspond to each other to meet the adsorption requirements of the soft board, thereby reducing the difficulty of processing and control.

[0054] After the continuous soft board on the conveyor belt 155 is mounted, the second driving member 1538 can continue to clamp the continuous soft board through the traction member 1533 and the clamping seat 1539, and the first driving member 1535 pulls the soft board to continue to move forward in the loading direction, so that the unmounted continuous soft board behind moves to the patch area and is adsorbed in the patch area for subsequent mounting operations; after the mounting is completed, the second driving member 1538 can drive the traction member 1533 to rise relative to the clamping seat 1539 to release the continuous soft board, and the first driving member 1535 then drives the traction member 1533 to move backward a preset distance in the loading direction, and the second driving member 1538 then drives the traction member 1533 to descend relative to the clamping seat 1539 to clamp the continuous soft board, and then the first driving member 1535 can pull the mounted soft board forward through the traction member 1533, and the above process is repeated to complete the mounting process of the continuous soft board.

[0055] Further, refer to Figure 7 and Figure 8 The material transfer mechanism 15 may include a blocking component 1514 connected to the support platform 1511, and the blocking component 1514 includes a third driving member 15141 and a stopper 15143 linked to the output end of the third driving member 15141, and the stopper 15143 is connected to the edge of the support platform 1511. The third driving member 15141 can be a cylinder or a hydraulic cylinder, or a motor. In the first working state, the third driving member 15141 drives the stopper 15143 to move along the second direction, i.e., the width direction of the conveyor belt 155, and limits the hard board to the patch area in the feeding direction.

[0056] Further, the material transfer mechanism 15 includes a correction component 1515 connected to the support table 1511, and the correction component 1515 includes a fourth driving member (not shown) and a correction member 15151 linked to the output end of the fourth driving member, and the correction member 15151 is elastically connected to the output end of the fourth driving member. The fourth driving member can be a cylinder or a hydraulic cylinder, or a motor. In the first working state, the fourth driving member drives the correction member 15151 to move along the second direction to abut against one side of the hard board, so that the other side of the hard board abuts against the limit plate 1513 to position the hard board in the patch area. The fourth driving member of the correction component 1515 can be similar to the structure and working principle of the third driving member 15141, which will not be repeated here.

[0057] During the hard board mounting process, that is, when the SMT machine 10 is in the first working state, the switching component 1531 drives the traction member 1533 and the clamping seat 1539 away from the conveyor belt 155 to prevent interference with the hard board transported by the conveyor belt 155. The stopper 15143 and the correction member 15151 are in the initial position to prevent interference with the hard board transported by the conveyor belt 155. After the hard board is placed on the conveyor belt 155, it can be detected by a sensor such as a photoelectric sensor in the SMT machine 10. The blocking component 1514 at the discharge end near the SMT area can drive the stopper 15143 to move in the second direction through the third driving member 15141, blocking the hard board in the feeding direction, preventing the hard board from continuing to move forward in the feeding direction, so that the hard board is initially positioned in the SMT area; in response to the collision between the stopper 15143 and the hard board or other detection signals, the conveyor belt 155 can stop running.

[0058] Of course, in the embodiment in which the material transfer mechanism 15 is provided with two patch areas, the blocking component 1514 at the front position (i.e., closer to the discharge end of the material transfer mechanism 15) can be started first, and the hard board at the front position can be initially positioned by using the stopper 15143. The conveyor belt 155 continues to operate, and the hard board is still initially positioned in the patch area at the front position by the stopper 15143. After the hard board at the front position passes through the patch area at the rear position (i.e., closer to the loading end of the material transfer mechanism 15), it can be detected by a photoelectric sensor (not marked in the figure). In response to the detection signal, the blocking component 1514 at the rear position can be started again to initially position the hard board at the rear position in the patch area at the rear position.

[0059] The correction component 1515 is set corresponding to the patch area, that is, at least one set of correction components can be set for each patch area. After the hard board is initially positioned in the patch area, the fourth driving member drives the correction member 15151 to move along the second direction to clamp the hard board, so that the hard board is positioned in the patch area. The correction member 15151 can have a suitable length in the feeding direction, so that the deflection of the hard board during the feeding movement can be corrected, the relative position accuracy of the hard board and the support table 1511 can be achieved, and the mounting accuracy of the head 13 can be ensured, and the clamping of the hard board can be achieved, so that the hard board can be reliably positioned in the patch area.

[0060] After the hard board mounting process is completed, the third driving member 15141 of the blocking component 1514 drives the stopping member 15143 away from the hard board along the second direction, thereby releasing the limit of the hard board in the loading direction; the fourth driving member of the correction component 1515 drives the correction member 15151 away from the hard board along the second direction, thereby further releasing the limit of the hard board in the loading direction, and the conveyor belt 155 can continue to operate and drive the hard board that has completed the mounting process and the hard board that has not been mounted to move forward, and the above process is repeated to complete the mounting process of multiple hard boards.

[0061] There are many ways to elastically connect the correction member 15151 to the output end of the fourth driving member, such as by using a spring or a spring sheet to realize the elastic connection between the correction member 15151 and the output end of the fourth driving member, so as to realize the elastic contact between the correction member 15151 and the hard board in the second direction, and prevent the rigid clamping force on the hard board from being too large and causing damage to the hard board. Of course, the end of the correction member 15151 for clamping the hard board can be provided with a buffer such as a silicone member or a rubber sheet to further avoid rigid collision with the hard board, so as to better protect the hard board and prevent damage to the hard board.

[0062] refer to Fig. 9 , the support assembly 151 may include a guide wheel 1517 rotatably connected to the limit plate 1513 or the support platform 1511, and more than two guide wheels 1517 may be arranged at intervals along the feeding direction. The support platform 1511 may be provided with guide wheels 1517 on opposite sides along the feeding direction, respectively, and the guide wheels 1517 may be raised to avoid entering the limit groove 151a and interfering with the movement of the soft board in the limit groove 151a. In the first working state, the guide wheel 1517 is used to roll in contact with the hard board to limit the movement range of the hard board in the second direction. The circumferential surface of the guide wheel 1517 may be slightly protruding from the edge of the limit plate 1513 or substantially tangent to the edge of the limit plate 1513, so as to utilize the contact between the guide wheel 1517 and the hard board to limit and guide the movement of the hard board in the feeding direction.

[0063] In some embodiments, a guide wheel 1517 is provided on one side of the support platform 1511, and a correction piece 15151 is provided on the other opposite side. The limiting plate 1513 and the guide wheel 1517 on the side of the guide wheel 1517 can more easily meet the assembly accuracy. The correction piece 15151 on one side is used to clamp the hard board to ensure the alignment accuracy between the hard board and the patch area, thereby ensuring the mounting accuracy.

[0064] In other embodiments, correction pieces 15151 can be respectively provided on two opposite sides of the support table 1511, and the offset distance of the hard board relative to the loading direction can be detected by a photoelectric sensor, etc., and then the displacement of the hard board in the second direction can be adjusted by the displacement of the correction pieces 15151 on both sides in the second direction, so as to meet the alignment accuracy of the hard board and the patch area, thereby ensuring the accuracy of mounting.

[0065] This adjustment method can also avoid repeatedly adjusting the compensation error of the head 13 and reducing the operating efficiency and service life of the head 13. That is, the more expensive head 13 can be operated without considering the compensation error. The correction parts 15151 on both sides can be used to compensate for the deviation of the hard board to simplify the control strategy of the head 13 and simplify the related error compensation structure of the head 13, thereby ensuring the service life and reliability of the head 13.

[0066] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A chip mounter, characterized in that: include: Machine base; A machine head, movably arranged on the machine base; as well as The material moving mechanism comprises a supporting assembly, a traction assembly and a conveyor belt, wherein the supporting assembly is connected to the machine base, and the traction assembly and the conveyor belt are respectively arranged on the supporting assembly; the traction assembly comprises a switching assembly and a traction member linked to the switching assembly; the placement machine has a first working state and a second working state, in the first working state, the switching assembly drives the traction member away from the conveyor belt and stops, and the conveyor belt is used to drive the hard board to move along the feeding direction; in the second working state, the switching assembly drives the traction member to approach the conveyor belt and abut against the soft board, and the traction assembly is used to pull the soft board to move along the feeding direction.

2. The chip mounter according to claim 1, characterized in that: The traction component includes a first driving member and a mounting platform linked to the output end of the first driving member. The switching component is arranged on the mounting platform. In the second working state, the first driving member drives the mounting platform, the switching component and the traction member to reciprocate along the feeding direction; the switching component drives the traction member to move relative to the supporting component along the first direction to approach or move away from the conveyor belt.

3. The chip mounter according to claim 2, characterized in that: The first direction is perpendicular to the feeding direction.

4. The chip mounter according to claim 2, characterized in that: The traction component includes a second driving member and a clamping seat linked to the output end of the switching component, the second driving member is connected to the clamping seat, and the traction member is linked to the output end of the second driving member to move relative to the clamping seat and clamp the soft board.

5. The chip mounter according to claim 4, characterized in that: The second driving member drives the traction member to rise and fall in the first direction to move away from the clamping seat to release the soft board, or to move closer to the clamping seat to clamp the soft board. The first direction is perpendicular to the feeding direction.

6. The chip mounter according to claim 2, characterized in that: The support assembly includes a support platform and a limit plate detachably connected to the edge of the support platform, the limit plate covers the edge of the conveyor belt and is spaced apart from the edge of the conveyor belt to form a limit groove; in the first working state, the thickness of the hard plate is greater than the height of the limit groove, and the limit plate is used to limit the movement range of the hard plate in the second direction, the second direction and the first direction are perpendicular to the feeding direction; in the second working state, the first driving member pulls the soft plate through the traction member to move in the limit groove along the feeding direction.

7. The chip mounter according to claim 6, characterized in that: The support assembly includes a guide wheel rotatably connected to the limit plate or the support platform, and the guide wheels are respectively provided on both sides of the support platform along the feeding direction. In the first working state, the guide wheel is used to roll in contact with the hard plate to limit the movement range of the hard plate in the second direction.

8. The chip mounter according to claim 6, characterized in that: The support platform is provided with at least two patch areas at intervals along the loading direction, the patch area is provided with an air cavity, and the conveyor belt is provided with a plurality of air holes arranged at intervals. In the second working state, the portion of the conveyor belt where the air holes are located covers the air cavity, so that the air cavity is connected with the plurality of air holes, so as to generate negative pressure in the air cavity and adsorb and fix the soft board to the patch area.

9. The chip mounter according to claim 8, characterized in that: The material moving mechanism comprises a blocking component connected to the support platform, the blocking component comprises a third driving member and a stopping member linked to an output end of the third driving member, and the stopping member is connected to an edge of the support platform; In the first working state, the third driving member drives the stopping member to move along the second direction and limits the hard board to the patch area.

10. The chip mounter according to claim 9, characterized in that: The material moving mechanism includes a correction component connected to the support table, the correction component includes a fourth driving member and a correction member linked to the output end of the fourth driving member, and the correction member is elastically connected to the output end of the fourth driving member; in a first working state, the fourth driving member drives the correction member to move along the second direction to abut against one side of the hard board, so that the other side of the hard board abuts against the limiting plate to position the hard board in the patch area.

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