Correction method of pneumatic clamping assembly, detection method of positioning piece and circuit board processing equipment

Abstract

The invention provides a correction method of a pneumatic clamp assembly, which comprises the following steps: controlling a main shaft assembly to move to a preset position, controlling a positioning piece to extend into a first positioning area of a first positioning part of the pneumatic clamp assembly and move in the first area, and controlling the first positioning part to clamp the positioning piece so as to correct the position of the first positioning part; detecting the position deviation between a main shaft of the main shaft assembly and a detection piece on the air clamping assembly; and determining the position of a first positioning point of the first positioning part based on the position deviation. The invention further provides a detection method of the positioning piece and circuit board processing equipment. According to the correction method of the air clamp assembly, the detection method of the positioning piece and the circuit board processing equipment, the position of the air clamp assembly can be accurately adjusted and corrected, so that the processing precision of the circuit board processing equipment is improved.

Description

[0001] This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on June 20, 2024, with the application number 202421421007.6 and the patent title "An Automatic Adjustment Device for a Pin Fixture and a Drilling Device", the entire content of which is incorporated herein by reference. Technical Field

[0002] The present disclosure relates to the technical field of equipment or methods for manufacturing printed circuits. More precisely, the present disclosure relates to a calibration method for a pneumatic clamp assembly, a detection method for a positioning member, and a circuit board processing device. Background Art

[0003] Before processing a circuit board, a circuit board processing device needs to fix the circuit board on a workbench. A pneumatic clamp assembly is arranged in the middle of the workbench, and its positioning part positions the pins on the back of the circuit board to accurately and stably fix the circuit board on the workbench.

[0004] After processing for a period of time, due to factors such as high spindle speed, large impact force, and vibration of the workbench, the positioning part of the pneumatic clamp assembly loosens and its position shifts when clamping the pins. The shift of the positioning part seriously affects the positioning accuracy of the circuit board, thereby affecting the processing quality.

[0005] Based on this technical problem, how to adjust and calibrate the position of the pneumatic clamp assembly and adjust the positioning part to a preset position is a technical problem that those skilled in the art urgently need to solve.

[0006] Disclosure Content

[0007] The present disclosure provides a circuit board processing device to solve the problems existing in the prior art.

[0008] According to a first aspect of the present disclosure, in a circuit board processing device, a calibration method for a pneumatic clamp assembly is provided, including: controlling the spindle assembly to move to a preset position, controlling a positioning member to extend into a first positioning area of a first positioning part of the pneumatic clamp assembly and move within the first area, and controlling the first positioning part to clamp the positioning member to calibrate the position of the first positioning part; detecting the position deviation between the spindle of the spindle assembly and a detecting member on the pneumatic clamp assembly; and determining the position of a first positioning point of the first positioning part based on the position deviation.

[0009] In some embodiments of the present disclosure, determining the position of the first positioning point of the first positioning part includes, when the position deviation is not within a preset threshold range, compensating the position deviation to the first positioning point and then controlling the positioning member to adjust the position of the first positioning part again.

[0010] In some embodiments of the present disclosure, the movement of the positioning member within the first region includes the positioning member moving to the position of the first positioning point, and the first positioning portion follows the movement of the positioning member.

[0011] In some embodiments of the present disclosure, controlling the first positioning portion to clamp the positioning member includes, during the process of controlling the first positioning portion to switch to the closed state, approaching, abutting against, and actively clamping the positioning member circumferentially multiple times to determine the position of the first positioning point.

[0012] In some embodiments of the present disclosure, when the first positioning portion abuts against and clamps the positioning member circumferentially, the first positioning point is the center of the inscribed circle of the region enclosed by at least two side walls of the first positioning portion.

[0013] In some embodiments of the present disclosure, detecting the position deviation between the spindle of the spindle assembly and the detecting member on the air chuck assembly includes controlling the spindle and the detecting member to move relative to the same target position, judging the concentricity based on their electrical signals, and determining the position difference between the two based on the concentricity.

[0014] In some embodiments of the present disclosure, before controlling the spindle assembly to move to the preset position, it further includes detecting the actual distances between the spindle and the positioning member in the first direction and the second direction, and determining the position of the positioning member based on the actual distances.

[0015] In some embodiments of the present disclosure, detecting the actual distances includes: detecting the distances between the detecting member clamped by the spindle and the positioning member relative to the same detecting assembly on the workbench.

[0016] In some embodiments of the present disclosure, controlling the positioning member to extend into the second positioning region of the second positioning portion of the air chuck assembly and move within the second region, and the second positioning portion clamps the positioning member to determine the position of the second positioning point.

[0017] According to the second aspect of the present disclosure, in a circuit board processing device, a method for detecting a positioning member is provided, including: the spindle clamps the positioning member and approaches the detecting assembly on the workbench to obtain the position deviation data of the spindle; the adjusting mechanism clamps the positioning member and approaches the detecting assembly on the workbench to obtain the position deviation data of the adjusting mechanism; according to the position deviation data of the spindle and the position deviation data of the adjusting mechanism, obtain the relative position between the spindle and the positioning member.

[0018] According to the third aspect of the present disclosure, in a circuit board processing device, a method for detecting a positioning member is provided, including: controlling the spindle to clamp the detecting member and move to the detecting assembly on the workbench; controlling the positioning member to move to the detecting assembly, and based on the electrical signals of the detecting member and the positioning member contacting the detecting assembly, determine the actual distances between the spindle and the positioning member in the first direction and the second direction; based on the actual distances, determine the position of the positioning member.

[0019] According to a fourth aspect of the present disclosure, in a circuit board processing device, a calibration method for a pneumatic chuck assembly is provided, including: S10: Controlling a positioning member to move to a preset position; S20: Controlling the positioning part and the locking part of the pneumatic chuck assembly to open, and the positioning part encloses to form a positioning area; S30: Controlling the positioning member to descend until it extends into the positioning area; S40: Controlling the positioning member to move within the positioning area to a positioning point; S50: Controlling the positioning part to switch to a closed state to clamp the positioning member, and determining the position of the positioning point.

[0020] According to a fifth aspect of the present disclosure, in a circuit board processing device, a calibration method for a pneumatic chuck assembly is provided, including: S100: Controlling the positioning part to open, and the positioning part encloses to form a positioning area; S200: Controlling the positioning member to move to directly above the positioning point; S300: Controlling the positioning member to descend until it extends into the positioning area, and the positioning member is located at the position of the positioning point; S400: Controlling the locking part to switch to a released state; S500: Controlling the positioning part to switch to a closed state to clamp the positioning member, and determining the position of the positioning point.

[0021] In some embodiments of the present disclosure, controlling the locking part to switch to a state of locking the position of the pneumatic chuck assembly, calibrating and recording the position of the positioning point; controlling the positioning part to open, and the positioning member rises from within the positioning area.

[0022] According to a sixth aspect of the present disclosure, a circuit board processing device is provided, including: a spindle assembly, the spindle assembly includes a spindle and a positioning member, a pneumatic chuck assembly, the pneumatic chuck assembly includes a first positioning area of a first positioning part, the first positioning area includes a first positioning point, the positioning member extends into the first positioning area and moves towards the first positioning point, so that the first positioning part moves towards the first positioning point to determine the position of the first positioning part; controlling the spindle to detect the position of the pneumatic chuck assembly, and based on the position deviation between the two, determining whether the calibration of the pneumatic chuck assembly is qualified.

[0023] In some embodiments of the present disclosure, the pneumatic chuck assembly includes a second positioning area of a second positioning part, the second positioning area includes a second positioning point, controlling the positioning member to extend into the second positioning area and move towards the second positioning point to determine the position of the first positioning part; based on the positions of the first positioning part and the first positioning part, determining the position of the pneumatic chuck assembly.

[0024] The calibration method of the pneumatic chuck assembly, the detection method of the positioning member and the circuit board processing device of the present disclosure have the following technical effects: (1) Based on the positioning member of the spindle assembly, the position of the positioning part of the pneumatic chuck assembly can be automatically adjusted; (2) Based on the two positioning points of the two positioning parts, the position of the pneumatic chuck assembly relative to the workbench is determined; (3) After calibrating the position of the pneumatic chuck assembly, the position of each circuit board is accurately positioned, improving the processing accuracy and processing quality.

[0025] Other features and advantages of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings incorporated in and constituting a part of this specification illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0027] Figure 1 Partial structural schematic diagram of a circuit board processing device provided for an embodiment of the present disclosure;

[0028] Figure 2 Partial structural schematic diagram of a circuit board processing device provided for an embodiment of the present disclosure;

[0029] Figure 3 Partial structural schematic diagram of an adjusting mechanism provided for an embodiment of the present disclosure;

[0030] Figure 4 Partial structural schematic diagram of a pneumatic clamp assembly provided for an embodiment of the present disclosure;

[0031] Figure 5 Partial structural schematic diagram of a first positioning portion provided for an embodiment of the present disclosure;

[0032] Figure 6 Partial structural schematic diagram of a main shaft assembly provided for an embodiment of the present disclosure;

[0033] Figure 7 Partial structural schematic diagram of a pneumatic clamp assembly on a workbench provided for an embodiment of the present disclosure;

[0034] Figure 8 Partial structural schematic diagram of a second positioning portion provided for an embodiment of the present disclosure;

[0035] Figure 9 Partial structural schematic diagram of a detection component for detecting a positioning member provided for an embodiment of the present disclosure;

[0036] Figure 10 Partial enlarged structural schematic diagram of a detection component for detecting a positioning member provided for an embodiment of the present disclosure;

[0037] Figure 11 Partial structural schematic diagram of a detection component provided for an embodiment of the present disclosure;

[0038] Figure 12 Partial structural schematic diagram of a pneumatic clamp assembly provided for an embodiment of the present disclosure;

[0039] Figure 13 Partial structural schematic diagram of a first positioning portion provided for an embodiment of the present disclosure;

[0040] Figure 14 Partial structural schematic diagram of the first positioning part provided by an embodiment of the present disclosure;

[0041] Figure 15 Partial structural schematic diagram of the second positioning part provided by an embodiment of the present disclosure;

[0042] Figure 16 Partial structural schematic diagram of the second positioning part provided by an embodiment of the present disclosure;

[0043] Figure 17 Partial structural schematic diagram of the circuit board processing equipment provided by an embodiment of the present disclosure.

[0044] Figures 1 to 17 The one-to-one correspondence between the names of each component and the reference numerals in the figure is as follows: In the figure: 400, base; 300, cross beam; 200, spindle assembly; 100, workbench; 110, air clamping assembly; 1, first positioning part; 2, first guiding mechanism; 21, first guide rail assembly; 22, second guide rail assembly; 23, first locking part; 3, adjusting mechanism; 31, driving part; 32, positioning part; 33, guiding part; 34, mounting bracket; 35, fixed seat; 36, first needle seat; 37, second needle seat; 4, second positioning part; 5, second guiding mechanism; 51, third guide rail assembly; 52, second locking part; 6, detection assembly; 61, bracket; 62, first sensor; 63, second sensor; 7, clamping groove; 10, side wall; 11, first positioning area; 12, first positioning point; 40, side wall; 41, second positioning area; 42, second positioning point. Specific embodiments

[0045] Now, various exemplary disclosures of the present disclosure will be described in detail with reference to the accompanying drawings. It should be noted that: Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these disclosures do not limit the scope of the present disclosure.

[0046] The following description of at least one exemplary disclosure is merely illustrative in nature and in no way limits the present disclosure or its application or use. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the specification. It should be noted that: Similar reference numerals and letters denote similar items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0047] The following describes the specific embodiments of the present disclosure in conjunction with the accompanying drawings. In this document, "upper", "lower", "front", "rear", "left", "right", etc. are only used to represent the relative positional relationship between relevant parts, rather than limiting the absolute positions of these relevant parts. In this document, "first", "second", etc. are only used for distinguishing each other, rather than indicating importance, order, and the prerequisite for mutual existence, etc. In this document, "equal", "aligned", "aligned", "vertical", "horizontal", "above", "below", "consistent", "synchronized", "simultaneous", "sequentially", "successively", etc. are not strict mathematical and / or geometric restrictions, and also include errors that can be understood by those skilled in the art and are allowed in manufacturing or using, etc.

[0048] As Figure 17 shown, the circuit board processing equipment in the present disclosure includes: a base 400, a cross beam 300, a spindle assembly 200, a workbench 100, etc. The workbench 100 is arranged on the base 400 and moves along the second direction. A plurality of spindle assemblies 200 moving along the first direction are slidably connected to the cross beam 300 erected above the workbench 100; the spindle of each spindle assembly 200 moves along the third direction to process the circuit board carried on the workbench 100. The first direction, the second direction, and the third direction are perpendicular to each other. In the context disclosure of the present disclosure, the circuit board processing equipment can be implemented as a drilling equipment, a shaping equipment, a milling machine equipment, a drilling and milling integrated equipment, etc., and no limitation is made here. In the context disclosure of the present disclosure, the number of spindle assemblies of the circuit board processing equipment can be one, two, three, four, five, six, eight, ten, twelve, etc., and no limitation is made here.

[0049] As Figure 17 , Figure 7 , Figure 12 , Figure 4As shown in the figure, at least one air chuck assembly 110 is provided on the workbench 100, and each air chuck assembly 110 positions a circuit board. To correct the position of the air chuck assembly 110, the circuit board processing equipment of the present disclosure includes: a spindle assembly 200 and an air chuck assembly 110. The spindle assembly 200 includes a spindle and a positioning member 32. The air chuck assembly 110 includes a first positioning portion 1, and the first positioning portion 1 includes a first guiding mechanism 2 and a first positioning area 11. The first positioning area 11 includes a first positioning point 12. The positioning member 32 extends into the first positioning area 11 and moves towards the first positioning point 12, so that the first positioning portion 1 moves towards the first positioning point 12 to determine the position of the first positioning portion 1; control the spindle to detect the position of the air chuck assembly 110, and based on the position deviation between the two, judge whether the correction of the air chuck assembly 110 is qualified. Such a circuit board processing equipment can achieve: based on the positioning member provided on the spindle assembly, the position of the air chuck assembly can be automatically adjusted, and after the position is adjusted, the position of the air chuck assembly is corrected and judged whether it is qualified; after the air chuck assembly is corrected to a qualified position, the air chuck assembly accurately positions the position of each circuit board, improving the processing accuracy and processing quality.

[0050] Since two pins are provided on the back side of the circuit board, correspondingly, two corresponding positioning points are configured on the air chuck assembly 110: a first positioning point 12 and a second positioning point 42. The circuit board determines its position on the workbench 100 based on the two pins. Appropriately, the position of the air chuck assembly 110 is determined based on the two positioning points 12 and 42. The connection line between the first positioning point 12 and the second positioning point 42 coincides with the connection line between the two pins on the back side of the circuit board. When the air chuck assembly 110 fixes the circuit board on the workbench 100, the two pins on the back side of the circuit board are respectively located at the first positioning point 12 and the second positioning point 42 of the air chuck assembly. Therefore, the air chuck assembly 110 includes a second positioning portion 4. The second positioning portion 4 includes a second guiding mechanism 5 and a second positioning area 41. The second positioning area 41 includes a second positioning point 42. Control the positioning member 32 to extend into the second positioning area 41 and move towards the second positioning point 42 to determine the position of the second positioning portion 4. Based on the positions of the first positioning portion 1 and the second positioning portion 4, the positions of the first positioning point 12 and the second positioning point 42 are determined; based on the positions of the first positioning point 12 and the second positioning point 42, the position of the air chuck assembly 110 is determined.

[0051] Refer to Figures 1 - 12 For an embodiment of the present disclosure, an automatic adjustment device for an air chuck assembly is disclosed. The automatic adjustment device for the air chuck assembly is used to automatically adjust and position the air chuck assembly to solve the inconvenience problem caused by the need for manual adjustment and reset of the air chuck assembly when the overall offset occurs due to vibration during processing. The present disclosure realizes the automatic alignment of the air chuck assembly, saving working hours and having higher efficiency.

[0052] Specifically, on the workbench 100 of the circuit board processing equipment, the air clamping assembly 110 in the present disclosure includes: a first guiding mechanism 2 for supporting the first positioning portion 1, and the first guiding mechanism 2 has at least one degree of freedom of movement. Here, the degree of freedom of movement means that the first positioning portion 1 moves along a first direction and a second direction on the first guiding mechanism 2, and the first direction and the second direction are perpendicular to each other.

[0053] Referring to Figure 1 , Figure 3 , Figure 6 and Figure 9 , the spindle assembly 200 includes a spindle and an adjusting mechanism 3. The adjusting mechanism 3 is installed on the spindle assembly 200 of the drilling equipment and is fixedly connected to the spindle. The adjusting mechanism 3 includes a driving portion 31 and a positioning member 32. Preferably, the positioning member 32 in the present disclosure is also set as a pin or a standard bar, both of which are cylindrical metal parts, so that they can be adapted to the clamping groove 7 penetrating the first positioning portion 1 and the second positioning portion 4. The driving portion 31 is used to control the positioning member 32 to move from a predetermined position into the clamping groove 7 of the first positioning portion 1, so as to force the first guiding mechanism 2 to move and be positioned within at least one degree of freedom of movement. The first positioning portion 1 includes side walls 10 with at least two surface structures, and the at least two side walls 10 enclose to form a clamping groove 7. The clamping groove 7 includes a first positioning region 11. The positioning member 32 moves within the first positioning region 11, driving the first positioning portion 1 to move relative to the workbench 100 along the first guiding mechanism 2, thereby correcting and positioning the position of the first positioning portion 1. The first positioning portion 1 includes an open state and a closed state. In the open state, at least two parts of the side walls 10 with at least two surface structures of the first positioning portion 1 enclose to form a first positioning region 11 in the clamping groove 7. In the closed state, at least two parts of the at least two side walls 10 of the first positioning portion 1 are retracted and limited to form a positioning point within the first positioning region 11.

[0054] Referring to Figure 4 , in some embodiments, the first guiding mechanism 2 in the present disclosure includes a first guide rail assembly 21 for constructing the degree of freedom in the first direction and a second guide rail assembly 22 for constructing the degree of freedom in the second direction. The first guide rail assembly 21 extends along the first direction, and the second guide rail assembly 22 extends along the second direction. The second guide rail assembly 22 is installed on the moving part of the first guiding mechanism 2. Further, the first positioning portion 1 is fixed on the moving part of the second guide rail assembly 22. By virtue of the sliding ability of the first guide rail assembly 21 and the second guide rail assembly 22, the first positioning portion 1 can move relative to the workbench along the first direction and the second direction, so as to realize the adjustment of two degrees of freedom of the first positioning portion 1.

[0055] It should be noted that in the present disclosure, the first direction and the second direction are perpendicularly designed, and the plane formed by the two is flush with the upper surface of the workbench. The third direction is perpendicular to the plane formed by the first direction and the second direction, and is also perpendicular to the plane where the workbench is located. Secondly, in the present disclosure, "first", "second", etc. are only used for distinguishing each other, rather than indicating importance, order, and prerequisite for each other's existence, etc.

[0056] Referring to Figure 5 , on the basis of the above embodiments, in the present disclosure, first locking parts 23 are respectively provided on the moving parts of the first guide rail assembly 21 and the second guide rail assembly 22. The first locking parts 23 switch between two states of locking and releasing. The two first locking parts 23 restrict the moving degrees of freedom of the first guiding mechanism 2, and can lock the first positioning part 1 on the workbench to realize the positioning, locking and releasing of the first positioning part 1. The first locking part 23 in the present disclosure is preferably set as an electric guide rail lock. The reason for adopting the electric control method is that after connecting the electric guide rail lock to the controller, automatic control unlocking and locking of the first guide rail assembly 21 and the second guide rail assembly 22 can be realized during positioning adjustment, thus greatly improving the operation convenience. In addition, the electric guide rail lock is a prior art and will not be elaborated here.

[0057] Referring to Figure 3 , further, in the present disclosure, the spindle assembly 200 includes an adjusting mechanism 3 and a spindle. The adjusting mechanism 3 includes a positioning part 32. The adjusting mechanism 3 further includes a guiding part 33. The guiding part 33 includes a guiding portion and a sliding portion. The guiding portion is used to restrict the sliding direction of the sliding portion. The positioning part 32 in the present disclosure is arranged in the third direction following the sliding direction of the sliding portion. The third direction is perpendicular to the first direction and the second direction. In addition, the driving part 31 in the present disclosure is preferably set as a cylinder, and the shaft end of the cylinder is fixedly connected to the sliding portion to control the movement of the sliding portion. Specifically, the driving part 31 is used to drive the sliding portion to slide, and the positioning part 32 is installed below the sliding portion. Driven by the driving part 31, the positioning part 32 can move up and down along the third direction on the guiding part 33, creating conditions for the positioning part 32 to descend and extend into the first positioning area 11 and the second positioning area 41 of the air chuck assembly.

[0058] Referring to Figure 3 , 6 , on the basis of the above disclosure, in the present disclosure, the adjusting mechanism 3 further includes a mounting bracket 34 for connecting with the spindle assembly. The driving part 31 and the guiding portion are both fixed on the mounting bracket 34. Referring to Figure 3, Of course, the installation and adjustment of the positioning member 32 also need to be considered. A fixed seat 35 is fixedly installed below the sliding portion. A first pin seat 36 and a second pin seat 37 are fixedly arranged on the side surface of the fixed seat 35 in sequence. The positioning member 32 is clamped between the first pin seat 36 and the second pin seat 37. Specifically, in the present disclosure, the first pin seat 36 and the second pin seat 37 are fastened by bolts. In addition, grooves are formed on the opposite surfaces of both of them, and the two grooves form a circular hole for placing the positioning member 32. The height adjustment of the positioning member 32 can be realized by removing the second pin seat 37. At the same time, a plurality of threaded holes can be formed on the end surface of the fixed seat 35 in the present disclosure, and the left and right positioning adjustment of the positioning member 32 can be realized by connecting and adapting the first pin seat 36 to different threaded holes. That is to say, in the adjusting mechanism 3, the posture of the positioning member 32 can be adjusted, including the positions in the first direction, the second direction, and the third direction, so as to adapt to the positions of the first positioning area 11 and the second positioning area 41 of the air clamping assembly with a reasonable initial position.

[0059] Specifically, in the present disclosure, the adjusting mechanism 3 is arranged on the main shaft assembly 200 and is fixed to the relative position of the main shaft of the main shaft assembly 200 in the XY direction. The driving component 31 drives the positioning member 32 to move up and down along the third direction. If the center coordinates of the main shaft are the origin (0, 0), the theoretical position coordinates of the positioning member 32 are set as (A, B), and the positioning member 32 is spaced a predetermined distance from the main shaft in the first direction and the second direction.

[0060] In the present disclosure, during the adjustment process of the adjusting mechanism 3 and the first positioning portion 1 of the air clamping assembly 110, the positioning member 32 is controlled to descend and extend into the first positioning area 11 of the first positioning portion 1, the position of the first positioning portion 1 is adjusted, and the first positioning point 12 is corrected. Specifically, in combination with Figures 1 to 12 , the automatic alignment principle of the first positioning portion 1 in the present disclosure includes the following steps:

[0061] 1) Achieving the goal: realizing the mechanical automatic coaxial alignment of the main shaft on the PCB drilling machine and the pin clamped by the first positioning portion 1. In order to adjust and correct the position of the air clamping assembly 110, a detection member can be set. When the detection member includes a pin, the coaxial alignment of the pin on the air clamping assembly 110 and the pin clamped by the main shaft is used to judge whether the correction position of the air clamping assembly 110 is qualified. During the detection process, when the concentricity of the pins of the two meets the predetermined threshold requirement, it is judged that the pin clamped by the main shaft and the pin on the air clamping assembly are coaxial, so as to determine that the position adjustment of the air clamping assembly is qualified.

[0062] 2) Initial state: The first positioning part 1 is open, the adjusting mechanism 3 is above the first positioning part 1, and the first locking part 23 is in the locked state. In the initial state, the first positioning part 1 of the air clamping assembly is in the open state. The clamping groove 7 of the first positioning part 1 includes a first positioning area 11, and the first positioning area 11 is located below the positioning part 32 and is in a position where the positioning part 32 can extend into it. The adjusting structure 3 of the main shaft assembly is above the air clamping assembly 110, and the positioning part 32 is above the first positioning area 11 of the first positioning part 1. The first locking part 23 is in the locked state, and the first positioning part 1 cannot move.

[0063] 3) The adjusting mechanism 3 moves with the main shaft assembly 200 to the theoretical adjustment position, and the driving component 31 drives the positioning part 32 to descend. Control the movement of the main shaft assembly 200, and the adjusting mechanism 3 moves together with the main shaft assembly 200 until the positioning part 32 is controlled to move directly above the first positioning point 12. That is to say, first control the main shaft assembly to drive the positioning part 32 to move directly above the first positioning point 12, and then descend and extend into the first positioning area to adjust the position of the positioning part 32. After the positioning part 32 reaches directly above the first positioning point 12, the driving component 31 drives the positioning part 32 to descend, and the positioning part 32 descends until it extends into the first positioning area 11. It should be noted that the interval of the first positioning area 11 is large enough to ensure that the positioning part 32 can extend into the first positioning area 11 after descending.

[0064] 4) The first locking part 23 is opened. The two first locking parts 23 are switched to the released state, the first guide rail assembly 21 and the second guide rail assembly 22 are in the released state, and the first positioning part 1 can move along the first direction and the second direction on the first guide rail 21 and the second guide rail 22. This creates conditions for the positioning part 32 to drive the first positioning part 1 to move along the first direction and the second direction.

[0065] 5) The first positioning part 1 operates to clamp the positioning part 32, achieving the deviation correction of its position. Control the first positioning part 1 to switch from the open state to the closed state to clamp the positioning part 32. Specifically, during the closing process of the first positioning part 1, at least two parts of the side wall 10 approach, abut, and circumferentially clamp the outer side wall of the positioning part 32 multiple times. The reverse extrusion force exerted by the outer side wall of the positioning part 32 on the side wall 10 of the first positioning part 1 drives the first positioning part 1 to move in the first direction and the second direction on the first guide rail 21 and the second guide rail 22. At this time, the side wall 10 of the first positioning part 1 moves closer to the positioning part 32 until the positioning part 32 is completely clamped. When the first positioning part 1 clamps the positioning part 32, the first positioning point 12 is the center of the inscribed circle of the area surrounded by at least two side walls 10 of the first positioning part 1. Therefore, based on the drive of the positioning part 32, the center point of the first positioning part 1 is corrected to the first positioning point 12, adjusting the position of the first positioning part 1, determining the position of the first positioning point 12 of the air chuck assembly 110, and thus achieving the technical effect of adjusting the position of the air chuck assembly 110.

[0066] 6) After the position positioning deviation correction, the first locking part 23 is locked. After adjusting the position of the first positioning part 1 of the air chuck assembly 110 and determining the position of the first positioning point 12 of the air chuck assembly, control the first locking part 23 to switch to the locked state. The two first locking parts 23 restrict the movement of the first positioning part 1 on the first guide rail 21 and the second guide rail 22, and the first positioning part 1 cannot move relative to the workbench; thus, the position of the first positioning point 12 is calibrated and recorded. It should be noted that the two first locking parts 23 only lock the movement of the first positioning part 1 relative to the workbench and do not restrict the open and closed states of the first positioning part 1.

[0067] 7) The first positioning part 1 is opened, and the driving part 31 drives the positioning part 32 to rise; the pin is completed. After the first locking part 23 locks the position of the first positioning part 1 and determines the position of the first positioning point 12 of the air chuck assembly, the first positioning part 1 switches to the open state to release the positioning part 32. Control the driving part 31 to drive the positioning part 32 to rise along the third direction, thereby completing the task of adjusting the first positioning point 12 of the air chuck assembly based on the positioning part 32.

[0068] In the first positioning part 1 and the second positioning part 4 of the air chuck assembly 110 of the present disclosure, a calibration method for an air chuck assembly is applied, including the following steps:

[0069] S100: Control the positioning part to open, and the positioning part surrounds and forms a positioning area;

[0070] S200: Control the positioning part to move directly above the positioning point;

[0071] S300: Control the positioning part to descend into the positioning area, and the positioning part is located at the positioning point;

[0072] S400: Control the locking part to switch to the release state;

[0073] S500: Control the positioning part to switch to the closed state to clamp the positioning member and determine the position of the positioning point.

[0074] During the process of the positioning member 32 adjusting the first positioning part 1, control the first positioning part 1 to open, and the first positioning part 1 encloses to form a first positioning area 11; control the positioning member 32 to move directly above the first positioning point 12; control the positioning member 32 to descend into the first positioning area 11, and the positioning member 32 is located at the position of the first positioning point 12; control the first locking part 23 to switch to the release state; control the first positioning part 1 to switch to the closed state to clamp the positioning member 32 and determine the position of the first positioning point 12.

[0075] During the process of the positioning member 32 adjusting the second positioning part 4, control the second positioning part 4 to open, and the second positioning part 4 encloses to form a second positioning area 41; control the positioning member 32 to move directly above the second positioning point 42; control the positioning member 32 to descend into the second positioning area 41, and the positioning member 32 is located at the position of the second positioning point 42; control the second locking part 52 to switch to the release state; control the second positioning part 4 to switch to the closed state to clamp the positioning member 32 and determine the position of the second positioning point 42.

[0076] After adjusting the positions of the first positioning part 1 and the second positioning part 4, the positions of the first positioning point 12 and the second positioning point 42 are determined, thereby correcting the position of the air clamping assembly 110 to the required correct position. It should be noted here that the offset of the air clamping assembly 110 is uncertain. Sometimes, only the position of the first positioning part 1 needs to be adjusted, and correcting the position of the first positioning point 12 can achieve the purpose of correcting the position of the air clamping assembly 110. Sometimes, the positions of the first positioning part 1 and the second positioning part 4 need to be adjusted separately, and the positions of the first positioning point 12 and the second positioning point 42 are corrected. Therefore, it is not necessary to adjust the position of the second positioning part 4. According to the offset situation of the air clamping assembly 110, the position of the second positioning part 4 can be optionally adjusted as long as the detection result meets the position correction requirements of the air clamping assembly 110 after adjusting the first positioning part 1.

[0077] Refer to Figure 2 、 7, The above takes a first positioning portion 1 as an example. In the present disclosure, a second guiding mechanism 5 for supporting the second positioning portion 4 is further included. The center line of the second positioning portion 4 coincides with that of the first positioning portion 1. The second positioning portion 4 includes a through clamping groove 7. The clamping groove 7 includes a second positioning area 41, and a second positioning point 42 is arranged in the second positioning area 41. The second positioning portion 4 has an open state and a closed state. In the open state, side walls 40 of at least two surface structures of the second positioning portion 4 enclose to form a second positioning area 41. In the closed state, at least two side walls 40 of the second positioning portion 4 are retracted to form a positioning point.

[0078] At one end of the second positioning portion 4 of the air clamping assembly, the second guiding mechanism 5 has at least one degree of freedom of movement. That is to say, in the present disclosure, the positioning portion includes a first positioning portion 1 and a second positioning portion 4. Taking the operation side of the circuit board processing equipment as the front side, the first positioning portion 1 is used to position the front pins of the PCB, that is, the front pins at the back end of the circuit board; the second positioning portion 4 is used to position the rear pins of the PCB, that is, the rear pins at the back end of the circuit board. In addition, the specific structure of the positioning portion has been disclosed in the prior art and will not be elaborated here. The difference in the present disclosure is that a clamping groove 7 is also provided on the end surface of the second positioning portion 4 in the present disclosure. This clamping groove 7 communicates with the clamping groove 7 of the second positioning portion 4 to form an overall clamping groove 7 that penetrates the air clamping assembly 110. The clamping groove 7 extends along the second direction. In this way, a conveying type positioning operation for the PCB can be realized. That is, when the PCB is conveyed, the rear pins at the bottom of the circuit board move along the second direction in the clamping groove 7 from the first positioning portion 1 to the second positioning point 42 of the first positioning portion 4 to achieve positioning, and the front pins move to the first positioning point 12 of the first positioning portion 1 in the clamping groove 7 to achieve positioning.

[0079] Refer to Figure 8 , In some embodiments, the second guiding mechanism 5 in the present disclosure includes a third guide rail assembly 51 for constructing the degree of freedom in the first direction. The second positioning portion 4 is fixed on the moving part of the third guide rail assembly 51. Specifically, the third guide rail assembly 51 in the present disclosure has the same structure as the first guide rail assembly 21 and the second guide rail assembly 22, and it can be set as a guide rail and slider mechanism. That is to say, the second positioning portion 4 can move relative to the workbench through the second guiding mechanism 5.

[0080] Based on the above disclosure, of course, in the present disclosure, a second locking portion 52 is provided on the moving part of the third guide rail assembly 51, and the second locking portion 52 restricts the freedom of movement of the second guiding mechanism 5. As described above, in the present disclosure, the second locking portion 52 is preferably set as an electric guide rail lock. The reason for adopting the electric control method is that after connecting the electric guide rail lock to the controller, automatic control unlocking and locking of the third guide rail assembly 51 can be achieved during positioning adjustment, thus greatly improving the operation convenience. Similar to the first locking portion 23, the second locking portion 52 can be switched between the locked and released states. When the second locking portion 52 is switched to the locked state, the second positioning portion 4 is fixed to the workbench by the second guiding mechanism 5. When the second locking portion 52 is switched to the released state, the second positioning portion 4 can move relative to the workbench along the first direction on the second guiding mechanism 5.

[0081] Further, similar to the method and steps of the first positioning portion 1, during the adjustment of the adjusting mechanism 3 and the second positioning portion 4 of the air clamping assembly 110, the control positioning member 32 is lowered and extended into the second positioning area 41 of the second positioning portion 4 to adjust the position of the second positioning portion 4 and correct the second positioning point. Combining Figures 1 to 12 , the automatic alignment principle of the second positioning portion 4 in the present disclosure includes the following steps:

[0082] 1) Initial state: The second positioning portion 4 is in the open state, the adjusting mechanism 3 is above the second positioning portion 4, and the second locking portion 52 is in the locked state. The second positioning portion is switched to the open state, and the second positioning portion 4 encloses to form the second positioning area 41.

[0083] 2) The adjusting mechanism 3 moves to the adjusted theoretical position, and the driving member 31 drives the positioning member 32 to descend. The control spindle assembly 200 drives the adjusting mechanism 3 to move, and the positioning member 32 moves to directly above the second positioning point 42. After the positioning member 32 reaches directly above the second positioning point 42, the driving member 31 drives the positioning member 32 to descend, and the positioning member 32 descends to extend into the second positioning area 41 of the second positioning portion 4. It should be noted that the interval of the second positioning area 41 is large enough to ensure that the positioning member 32 can extend into the second positioning area 41 after descending.

[0084] 3) The second locking portion 52 is opened. The control second locking portion 52 is switched to the released state, and the second positioning portion 4 can move relative to the workbench along the second guiding mechanism 5.

[0085] 4) The second positioning part 4 clamps the positioning member 32 to correct its position. Control the second positioning part 4 to switch to the closed state to clamp the positioning member 32. Specifically, during the closing process of the second positioning part 4, at least two parts of the side walls 40 of at least two surface structures approach, abut, and actively clamp the outer peripheral side wall of the positioning member 32 circumferentially. The reverse extrusion force given by the positioning member 32 drives the second positioning part 4 to move along the first direction on the third guide rail assembly 51. At this time, the side walls 40 of the second positioning part 4 move towards the positioning member 32 until the positioning member 32 is completely clamped. The second positioning point 42 is the center of the inscribed circle of the area surrounded by at least two side walls 40 of the second positioning part 4. Therefore, based on the drive of the positioning member 32, the center point of the second positioning part 4 is corrected to the second positioning point 42, the position of the second positioning part 4 is adjusted, and the position of the second positioning part 4 of the air chuck assembly is determined, thereby achieving the technical effect of adjusting the position of the air chuck assembly.

[0086] 5) After the position is positioned and corrected, the second locking part 52 locks to achieve positioning; after determining the position of the second positioning part 4 of the air chuck assembly, the second locking part 52 switches to the locked state to lock the position of the second positioning part 4 relative to the workbench, and calibrates and records the position of the second positioning point 42.

[0087] 6) The second positioning part 4 is opened, and the driving part 31 drives the positioning member 32 to rise; the pin is completed. After the second locking part 52 locks the position of the second positioning part 4 and determines the position of the second positioning point 42 of the air chuck assembly, the second positioning part switches to the open state to release the positioning member 32. Control the driving part 31 to drive the positioning member 32 to rise along the third direction, thereby completing the task of calibrating the second positioning point 42 of the air chuck assembly 110 based on the positioning member 32.

[0088] In addition, the spindle assembly 200 includes a spindle and an adjustment mechanism 3. The adjustment mechanism 3 is fixedly connected to the spindle. Therefore, the distance between the positioning member 32 clamped by the adjustment mechanism and the spindle is theoretically fixed. Considering that the relative position of the positioning member 32 clamped by the adjustment mechanism 3 in the present disclosure relative to the spindle chuck will change after a period of time, and this change amount will affect the adjustment accuracy, it is necessary to realize the real-time detection of the relative position between the positioning member 32 and the spindle. Specifically, the following solution is provided in the present disclosure:

[0089] Refer to Figures 9 - 11, Specifically, the present disclosure further includes a detection component 6 disposed on the workbench. The detection component 6 is used to detect the relative position between the positioning member 32 and the spindle chuck of the spindle assembly to eliminate the position error of the positioning member 32. In a preferred disclosure, the detection component 6 in the present disclosure includes a bracket 61 mounted on the workbench. The bracket 61 has two perpendicular mounting surfaces. A first sensor 62 and a second sensor 63 are respectively fixed on the two mounting surfaces. The first sensor 62 and the second sensor 63 are connected to the controller and are used to obtain the position data of the positioning member 32 and the spindle chuck in the first direction and the second direction respectively. During specific detection, after a period of time, the relative position of the positioning member 32 clamped by the driving mechanism relative to the spindle chuck will change, and this change amount will affect the adjustment accuracy. Therefore, it is necessary to realize the real-time detection of the relative position between the positioning member 32 and the spindle. The present patent provides the following solution: Select a third-party reference object, such as the detection component 6, and obtain the relative positions between the spindle and the positioning member 32 and the reference object respectively, and calculate through software to obtain the relative position between the spindle and the positioning member 32.

[0090] One solution provided in the present disclosure is a solution for collecting coordinates through electrical signals, as follows:

[0091] 1. The spindle clamps the positioning member 32 and approaches the first sensor 62 in the first direction and the second sensor 63 in the second direction from the safe theoretical position to obtain position deviation data;

[0092] 2. The adjustment mechanism 3 clamps the positioning member 32 and also approaches the first sensor 62 in the first direction and the second sensor 63 in the second direction from the safe theoretical position to obtain position deviation data;

[0093] 3. Calculate the actual relative position between the spindle and the positioning member 32 through software. Through software compensation, the function of accurately adjusting the PIN clamp is realized.

[0094] This solution provides a detection method for a positioning member, including: the spindle clamps the positioning member and approaches the detection component on the workbench to obtain the position deviation data of the spindle; the adjustment mechanism holds the positioning member and approaches the detection component on the workbench to obtain the position deviation data of the adjustment mechanism; based on the position deviation data of the spindle and the position deviation data of the adjustment mechanism, obtain the relative position between the spindle and the positioning member. Specifically, by clamping the same positioning member by the adjustment mechanism and the spindle respectively and moving to the vicinity of the same detection component to detect the position deviation data. Here, the position deviation data refers to the distance between the adjustment mechanism and the spindle relative to the same detection component. Then, based on the difference between the position deviation data of the spindle and the position deviation data of the adjustment mechanism, obtain the relative position deviation between the spindle and the positioning member, thereby determining the actual distance between the positioning member and the spindle. In this embodiment, the detection component is a sensor device such as a tool setter or a detection component on the workbench.

[0095] In another embodiment of the present disclosure, a method for detecting a positioning member is further provided. The spindle assembly includes a spindle and a positioning member clamped by an adjusting mechanism. In theory, the central positions of the spindle and the positioning member are fixed. However, due to factors such as high-speed movement, assembly, and thermal expansion and contraction, the central positions of the two are inevitably offset. To reduce the influence of the accuracy error caused by this offset, the actual position of the positioning member needs to be detected before adjusting the position of the pneumatic chuck assembly.

[0096] Specifically, the present disclosure further provides another method for detecting a positioning member, including: controlling the spindle to clamp the detection member and move it to the detection assembly on the workbench; controlling the positioning member to move to the detection assembly, and based on the electrical signals of the detection member and the positioning member contacting the detection assembly, determining the actual distances between the spindle and the positioning member in the first direction and the second direction; and determining the position of the positioning member based on the actual distances. This method for detecting a positioning member is based on the spindle clamping the detection member and the adjusting mechanism clamping the positioning member moving to the same detection assembly on the workbench successively. The central positions of the detection member clamped by the spindle and the positioning member clamped by the adjusting mechanism are detected and judged through the electrical signals generated by triggering CBD or the sensors triggered by blocking light when contacting the detection assembly, and then the actual distances between the detection member and the positioning member are calculated. Based on the actual distances, the actual position of the positioning member is determined. In this embodiment, the detection assembly can be any cylindrical metal part such as a pin or a standard bar on the workbench, or a sensor part such as a tool setter or an inspection assembly on the workbench.

[0097] In the above method, by determining the relative positions of the spindle and the positioning member, the actual coordinate position of the positioning member is found. This actual coordinate position is for preparing the subsequent control of the positioning member to move to the first positioning point and / or the second positioning point. When the actual position of the positioning member is accurate, the relative movement of the positioning member is more precise. It should be noted here that the theoretical central distance between the adjusting mechanism and the spindle is fixed. However, after detecting the actual distance, the accuracy is higher, reducing the number of subsequent adjustments of the pneumatic chuck assembly, saving time and improving efficiency. At the same time, the positions of the adjusting mechanism and the spindle are determined by the center points of the clamped detection member or positioning member. The detection member and the positioning member can be any cylindrical metal part such as a pin or a standard bar.

[0098] Adopting the above solution can achieve high-precision positioning adjustment. In addition, those skilled in the art should know that in the present disclosure, it is not limited to using sensors for detection, and any electrical signal acquisition scheme can be used, including but not limited to the electrical signals triggered by CBD.

[0099] In addition, a drilling device is proposed in the present disclosure, which includes a workbench, a cross beam, a spindle assembly, and the above-mentioned air chuck assembly. The first positioning portion 1 is fixed on the workbench, and the adjusting mechanism 3 is fixed on the side of the spindle assembly. The spindle assembly is used to hold a tool to perform a drilling operation on a PCB board. Of course, the above-mentioned second positioning portion 4 and the detection assembly 6 are also fixed on the workbench. By moving the spindle assembly, the adjusting mechanism 3 is driven to move adaptively, without the need to design an additional drive source, and the action coordination is higher, improving the convenience and accuracy of the automatic adjustment of the fixture.

[0100] Embodiment 1

[0101] Combined with the attached Figure 1 to the attached Figure 17 In some embodiments of the present disclosure, to correct the position of the air chuck assembly, a method for correcting the air chuck assembly is provided, including: controlling the spindle assembly to move to a preset position, controlling the positioning member to extend into the first positioning area of the first positioning portion of the air chuck assembly and move within the first area, and controlling the first positioning portion to hold the positioning member to correct the position of the first positioning portion; detecting the position deviation between the spindle of the spindle assembly and the detecting member on the air chuck assembly; and determining the position of the first positioning point of the first positioning portion based on the position deviation. This method for correcting the air chuck assembly can achieve: based on the positioning member of the spindle assembly, the position of the first positioning portion of the air chuck assembly can be automatically adjusted; based on the first positioning point of the first positioning portion, the position of the air chuck assembly relative to the workbench can be determined; after correcting the position of the air chuck assembly, the position of each circuit board can be accurately positioned, improving the processing accuracy and processing quality.

[0102] In the first positioning portion of the air chuck assembly, first control the spindle assembly to drive the positioning member to move to a preset position directly above the first positioning area. Then control the positioning member to descend along the third direction until it extends into the first positioning area and move within the first area to the first positioning point; then control the air chuck assembly to hold the positioning member. Specifically, during the movement and clamping process, it includes the positioning member driving the first positioning portion to move towards the first positioning point, thereby adjusting the position of the first positioning portion of the air chuck assembly and determining the coordinate position of the first positioning point. After determining the position of the first positioning point, detect whether the position of the first positioning point meets the predetermined threshold requirements. Specifically, by detecting whether the detecting member held by the spindle and the detecting member on the air chuck assembly are aligned at the first positioning point, it is judged whether the position correction of the first positioning point of the air chuck assembly is qualified.

[0103] In some embodiments of the present disclosure, during the process of determining the position of the first positioning point of the first positioning portion based on the position deviation, when the position deviation is within the preset threshold range, it is determined that the position correction of the first positioning point of the first positioning portion is qualified; when the position deviation is not within the preset threshold range, after compensating the position deviation to the first positioning point, the positioning member is controlled to correct the position of the first positioning portion again. Specifically, based on the detection result, it is compared with the preset deviation threshold. When the detected position deviation is within the preset deviation threshold range, it is determined that the position correction is qualified; when the detected position deviation is not within the preset deviation threshold range, the detected position deviation is compensated to the coordinate position of the first positioning point, and the positioning member is controlled to adjust the position of the first positioning portion again. During the specific adjustment process, the positioning member is controlled to move within the first positioning area, and the end target position of its movement is the position of the first positioning point after deviation compensation; to achieve the closed-loop precise adjustment and correction of the first positioning point.

[0104] In some embodiments of the present disclosure, the adjustment and detection process is repeated until the correction is qualified. Specifically, the position deviation between the main shaft and the detection member is detected. After compensating the position deviation to the first positioning point again, the positioning member is used to correct the position of the first positioning portion again. Based on the re-adjustment after compensating the detected position deviation, the position deviation between the main shaft and the detection member is repeatedly detected. If the second detected position deviation is within the preset deviation threshold range, the position adjustment of the first positioning point is qualified, and the adjustment and correction are ended; if the second detected position deviation is not within the preset deviation threshold range, the position adjustment of the first positioning point is unqualified. After superimposing and compensating the second detected position deviation to the first positioning point, the positioning member is used to correct the position of the first positioning point of the air chuck assembly again. Such repeated correction and detection are performed until the concentricity between the main shaft and the detection member is qualified and the detection is qualified, and the position adjustment and correction of the first positioning point are completed.

[0105] Combined with the attached Figure 13 and Figure 14As shown, in some embodiments of the present disclosure, the movement of the positioning member within the first region includes the positioning member moving to the position of the first positioning point, and the air chuck assembly follows the movement of the positioning member. After the positioning member 32 extends into the first positioning region 11, the movement of the positioning member 32 within the first positioning region 11 is controlled until it moves to the position of the first positioning point 12. The first positioning portion 1 of the air chuck assembly 110 includes side walls 10 having at least two surface structures, and at least two portions of the plurality of side walls 10 enclose to form the first positioning region 11. During the movement, the positioning member 32 may abut against the side wall 10 in a certain direction. The positioning member 32 moves towards the first positioning point 12, driving the side wall 10 in this direction to move towards the first positioning point 12, and driving the first positioning portion 1 to move towards the first positioning point 12. It should be noted that the space of the first positioning region 11 is large enough, and the movement distance of the positioning member within the first positioning region is affected by the position deviation. If the deviation is small, the positioning member may not abut against the side wall of the first positioning portion. If the deviation is large, the positioning member may abut against at least one side wall of the first positioning portion. Even if there is no abutment against the side wall, during the process of the first positioning portion switching to the closed state, the side wall of the first positioning portion can actively approach and abut against the positioning member, thereby realizing position adjustment.

[0106] Combined with the attached Figure 14 As shown, in some embodiments of the present disclosure, controlling the air chuck assembly to clamp the positioning member includes, during the process of controlling the air chuck assembly to switch to the closed state, approaching, abutting against, and actively clamping the positioning member multiple times circumferentially to determine the position of the first positioning point. The positioning member 32 moves towards the first positioning point 12 within the first positioning region 11, and then the first positioning portion 1 of the air chuck assembly is controlled to actively approach and clamp the positioning member 32. The air chuck assembly needs to accurately determine the position of the first positioning point. Therefore, during the process of controlling the air chuck assembly to switch to the closed state, since the positioning member 32 is stationary and located at the position of the first positioning point 12, at least two side walls 10 of the first positioning portion approach and abut against the positioning member 32 circumferentially. During the abutment process, the positioning member 32 successively blocks at least one side wall and applies a reverse extrusion force to at least one side wall. The reverse extrusion force drives the first positioning portion to move along the first direction and / or the second direction on the first guide rail assembly and the second guide rail assembly. Realize fine adjustment of the position of the first positioning portion 1, and clamp the positioning member 32 through at least two side walls 10 to determine the coordinate position of the first positioning point 12, and calibrate and record the position of the first positioning point 12.

[0107] In some embodiments of the present disclosure, when the first positioning portion 1 circumferentially abuts and clamps the positioning member 32, the first positioning point 12 is the center of the inscribed circle of the area surrounded by at least two side walls 10 of the first positioning portion 1. The first positioning portion 1 circumferentially abuts the positioning member 32. Before completely abutting the positioning member, at least two side walls of the first positioning portion actively move towards the positioning member until the positioning member is clamped circumferentially. When at least two side walls 10 of the first positioning portion 1 abut and clamp the positioning member 32, at least two side walls 10 of the first positioning portion 1 enclose the positioning member 32 within a reduced positioning area, and the center of the inscribed circle of this reduced positioning area is defined as the first positioning point 12. It should be noted that when the positioning member 12 is a standard cylindrical structure, the central axis of the positioning member 32 passes through the first positioning point 12.

[0108] In some embodiments of the present disclosure, detecting the position deviation of the detecting member on the main shaft of the main shaft assembly and the air chuck assembly includes controlling the relative movement of the main shaft and the detecting member to the same target position, judging the concentricity based on the electrical signals of the two, and determining the position difference between the two based on the concentricity. After adjusting the position of the first positioning portion and determining the position of the first positioning point, it is necessary to detect whether the position of the first positioning point is qualified. Specifically, control the detecting member clamped by the main shaft and the detecting member clamped by the first positioning portion to relatively move to the same target position, and determine the concentricity position deviation of the two at this same target position through the electrical signal. Specifically, a detecting member can be placed at the first positioning point of the first positioning portion, and control the detecting member clamped by the main shaft to approach the detecting member clamped by the first positioning portion. Since both detecting members are cylindrical metal parts, including but not limited to standard rods or pins, after the circumferential side walls of the two metal parts abut, the CBD detects a metal conduction signal. Control the detecting member clamped by the main shaft to approach the detecting member clamped by the first positioning portion from four directions, record four coordinate positions through the conducted electrical signal, and determine the position of the detecting member of the first positioning portion based on the center of the inscribed circle of the four coordinate positions. This position is the actual position of the first positioning point, and the position of the detecting member clamped by the main shaft is the theoretical position of the first positioning. Compare the deviation of the actual position and the theoretical position of the first positioning point in the first direction and the second direction, and further compare the concentricity of the detecting member clamped by the main shaft and the detecting member clamped by the first positioning portion. It should be noted that concentricity is relative. When the concentricity is within a preset threshold range, it means that the concentricity of the two is qualified. Therefore, there must be a difference in the central coordinate positions of the two, and this deviation is the position difference between the main shaft and the air chuck assembly.

[0109] Such as Figure 15 And Figure 16As shown, in some embodiments of the present disclosure, the control positioning member extends into the second positioning area of the air chuck assembly and moves within the second area. The air chuck assembly clamps the positioning member to determine the position of the second positioning point. The position deviation between the spindle of the spindle assembly and the detection member on the air chuck assembly is detected; when the position deviation is within the preset threshold range, it is determined that the position correction of the second positioning point of the air chuck assembly is qualified.

[0110] The air chuck assembly includes a first positioning portion and a second positioning portion, each provided with a first positioning point and a second positioning point. Based on the positions of the two positioning points, the positions of the two pins on the back side of the circuit board are adapted, so that the line connecting the two positioning points coincides with the line connecting the two pins, thereby ensuring that the position of the circuit board on the workbench does not shift as a whole. Therefore, after determining the position of the first positioning point, optionally, it is also necessary to determine the position of the second positioning point; similar to the method of determining the first positioning point, the position of the second positioning portion is adjusted. Specifically, as Figure 16 shown, in the second positioning portion of the air chuck assembly, the control positioning member extends into the second positioning area, and the positioning member moves towards the second positioning point within the second positioning area. The second positioning portion is controlled to clamp the positioning member. Based on the movement and clamping, the positioning member drives the second positioning portion to move towards the second positioning point, thereby adjusting the position of the second positioning portion and determining the coordinate position of the second positioning point. After determining the position of the second positioning point, it is detected whether the position of the second positioning point meets the predetermined threshold requirements. Specifically, based on whether the spindle and the detection member are aligned at the position of the second positioning point, it is determined whether the position correction of the second positioning point of the air chuck assembly is qualified.

[0111] This calibration method of the air chuck assembly can achieve automatic adjustment of the position of the positioning portion of the air chuck assembly based on the positioning member of the spindle assembly; determine the position of the air chuck assembly relative to the workbench based on the positioning points of at least one positioning portion; (3) after calibrating the position of the air chuck assembly, accurately position the position of each circuit board, improving the processing accuracy and processing quality.

[0112] Embodiment 2

[0113] Combined with the attached Figure 1 to the attached Figure 17, in some embodiments of the present disclosure, to correct the position of the air chuck assembly, a method for correcting the air chuck assembly is provided, including: controlling the spindle assembly to move to a preset position, controlling the positioning member to extend into the first positioning area of the first positioning portion of the air chuck assembly and move within the first area, and controlling the first positioning portion to clamp the positioning member to correct the position of the first positioning portion; detecting the position deviation between the spindle of the spindle assembly and the detecting member on the air chuck assembly; and determining the position of the first positioning point of the first positioning portion based on the position deviation. This method for correcting the air chuck assembly can achieve: based on the positioning member of the spindle assembly, the position of the first positioning portion of the air chuck assembly can be automatically adjusted; based on the first positioning point of the first positioning portion, the position of the air chuck assembly relative to the workbench can be determined; after correcting the position of the air chuck assembly, the positions of each circuit board can be accurately positioned, improving the processing accuracy and quality.

[0114] In this embodiment, the method for correcting the air chuck assembly and the circuit board processing equipment are the same as those in Embodiment 1 and will not be elaborated here. The difference lies in: before correcting the air chuck assembly, it further includes a detection method for the positioning member. Specifically, before controlling the spindle assembly to move to the preset position, it further includes detecting the actual distances between the spindle and the positioning member in the first direction and the second direction, and determining the position of the positioning member based on the actual distances.

[0115] In Embodiment 1, the error between the spindle and the positioning member of the adjustment mechanism is ignored, and the distance between the spindle and the positioning member is defaulted to the theoretical distance. Therefore, the positioning member starts to move towards the first positioning point or the second positioning point with the position of the spindle as the reference. In this embodiment, the actual distance between the positioning member of the adjustment mechanism and the spindle is first detected, and then it moves towards the first positioning point or the second positioning point based on the actual distance, eliminating the error between the spindle and the positioning member of the adjustment mechanism, improving the correction accuracy, reducing the subsequent adjustment and correction times, and improving the efficiency.

[0116] Specifically, before correcting the position of the air chuck assembly, the position of the positioning member is first detected. Therefore, this embodiment discloses a detection method for the positioning member, including: controlling the spindle to clamp the detecting member and move to the detecting component on the workbench; controlling the positioning member to move to the detecting component, and determining the actual distances between the spindle and the positioning member in the first direction and the second direction based on the electrical signals of the detecting member and the positioning member contacting the detecting component; and determining the position of the positioning member based on the actual distances.

[0117] In this embodiment, the detecting member is a pin, and the detecting assembly is a CBD cooperating with the pin. First, control the spindle to hold the detecting member and move it to the detecting assembly on the workbench. The spindle holds the pin and moves in the first direction until it contacts the pin of the detecting assembly on the workbench. The outer peripheral sidewall of the pin held by the spindle contacts the outer peripheral sidewall of the pin on the workbench, and the electrical signals of the two pins are connected. The CBD receives the connected electrical signals and triggers the control system to record the moving distance of the spindle. Detect continuously for multiple times to eliminate detection errors and obtain the average value. The distance between the spindle pin and the pin on the workbench in the first direction can be accurately detected. Similarly, the spindle holds the pin and moves in the second direction until it contacts the pin of the detecting assembly on the workbench. Based on the electrical signals of the CBD, determine the distance between the spindle pin and the pin on the workbench in the second direction. Detect continuously for multiple times to eliminate detection errors and obtain the average value.

[0118] Then control the positioning member to move to the detecting assembly. Specifically, the positioning member of the adjusting mechanism moves in the first direction until it contacts the pin of the detecting assembly on the workbench. Based on the electrical signals of the CBD, determine the distance between the positioning member and the pin on the workbench in the first direction. Similarly, determine the distance between the positioning member and the pin on the workbench in the second direction.

[0119] Based on the electrical signals contacted by the pin held by the spindle and the positioning member, first determine the distances between the spindle pin and the pin on the workbench in the first and second directions, and the distances between the positioning member and the pin on the workbench in the first and second directions. Calculate the differences in the same direction to determine the actual distances between the positioning member and the spindle in the first and second directions.

[0120] Finally, based on the actual distances, when the spindle moves to the preset position, the actual position of the positioning member can be determined according to the relative actual distances. Compared with the fixed theoretical distance in Embodiment 1, this method can reduce the interference of the position error of the positioning member, improve the accuracy of adjusting the positions of the first positioning portion and the second positioning portion of the positioning member for the air clamping assembly, and can also relatively reduce the number of adjustments and detections, improving the efficiency.

[0121] In the above Embodiment 1 and Embodiment 2, as Figures 12 to 14 shown, a method for calibrating the first positioning point of an air clamping assembly is specifically applied, including the following steps:

[0122] S10: Control the positioning member to move to the preset position. The spindle assembly moves, driving the positioning member to move. The positioning member moves to the preset position, and this preset position is above the first positioning area.

[0123] S20: Control the first positioning part and the first locking part of the air chuck assembly to open. The first positioning part encloses to form a first positioning area. The opening of the first positioning part and the first locking part prepares for the descent and movement of the positioning piece. At least two side walls of the first positioning part enclose to form a first positioning area around the air chuck assembly.

[0124] S30: Control the positioning piece to descend until it extends into the first positioning area; driven by the driving part 31, the positioning piece 32 descends along the third direction until it extends into the first positioning area.

[0125] S40: Control the positioning piece to move within the first positioning area to the first positioning point; within the first positioning area, the main shaft assembly moves, driving the positioning piece to move to the first positioning point. During the movement of the positioning piece towards the first positioning point, the positioning piece may abut against at least one side wall of the first positioning part. The movement of the positioning piece drives the side wall of the first positioning part to move towards the first and / or second direction, thereby driving the entire first positioning part to move relative to the workbench. Realize the fine adjustment of the first positioning part.

[0126] S50: Control the first positioning part to switch to the closed state to clamp the positioning piece, and determine the position of the first positioning point of the air chuck assembly. During the process of controlling the first positioning part to switch from open to closed state, at least two side walls of the first positioning part move from the circumferential direction towards the direction of abutting against the positioning piece until at least two side walls of the first positioning part completely abut against the outer circumferential side wall of the positioning piece. At this time, the center of the inscribed circle of the area enclosed by at least two side walls of the first positioning part is determined as the first positioning point. Thus, the position of the first positioning point is determined through the positioning piece.

[0127] After determining the position of the first positioning point, control the first locking part to switch to the state of locking the position of the first positioning part of the air chuck assembly, calibrate and record the position of the first positioning point. Then control the first positioning part to open, and the positioning piece rises from within the first area. Complete the calibration of the first positioning point of the air chuck assembly.

[0128] In the above-mentioned First Embodiment and Second Embodiment, as Figure 12 、 Figure 15 、 Figure 16 shown, a method for calibrating the second positioning point of an air chuck assembly is specifically applied, including the following steps:

[0129] S55: Control the positioning piece to move to a preset position. The main shaft assembly moves, driving the positioning piece to move. The positioning piece moves to the preset position, and this preset position is above the second positioning area.

[0130] S65: Control the second positioning part and the second locking part of the air clamping component to open. The second positioning part encloses to form a second positioning area. The opening of the second positioning part and the second locking part prepares for the descent and movement of the positioning part. At least two side walls of the second positioning part enclose the air clamping component to form a second positioning area.

[0131] S75: Control the positioning part to descend until it extends into the second positioning area; Driven by the second guiding mechanism 5, the positioning part 32 descends along the third direction until it extends into the second positioning area.

[0132] S85: Control the positioning part to move within the second positioning area to the second positioning point; Within the second positioning area, the main shaft assembly moves, driving the positioning part to move to the second positioning point. During the movement of the positioning part towards the second positioning point, the positioning part may abut against at least one side wall of the second positioning part. The movement of the positioning part drives the side wall of the second positioning part to move in the first and / or second directions, thereby driving the entire second positioning part to move relative to the workbench. Realize the fine adjustment of the second positioning part.

[0133] S95: Control the second positioning part to switch to the closed state to clamp the positioning part, and determine the position of the second positioning point of the air clamping component. During the process of controlling the second positioning part to switch from the open state to the closed state, at least two side walls of the second positioning part move from the circumferential direction towards the direction close to the positioning part until at least two side walls of the second positioning part completely abut against the outer peripheral side wall of the positioning part. At this time, the center of the inscribed circle of the area enclosed by at least two side walls of the second positioning part is determined as the second positioning point. Thus, the position of the second positioning point is determined through the positioning part.

[0134] After determining the position of the second positioning point, control the second locking part to switch to the state of locking the position of the second positioning part of the air clamping component, calibrate and record the position of the second positioning point. Then control the second positioning part to open, and the positioning part rises from the second area. Complete the calibration of the second positioning point of the air clamping component.

[0135] The above calibration method of the air clamping component can achieve: Based on the positioning part of the main shaft assembly, the position of the positioning part of the air clamping component can be automatically adjusted; Based on the positioning point of the positioning part, determine the position of the air clamping component relative to the workbench; After calibrating the position of the air clamping component, accurately position the position of each circuit board, improving the processing accuracy and processing quality.

[0136] In the context of the present disclosure, when the perpendicularity of the spindle assembly is within a preset range, the center coordinates of the spindle on the workbench are used to determine the position of the spindle. Specifically, the relative position between the tool or pin clamped at the bottom end of the spindle and the workbench can be detected to detect and determine the center coordinates of the spindle, and detection tools such as a tool setter or a tool inspection component can be retrieved to detect the center coordinates. At the same time, when the actual center coordinate position of the spindle is not within the preset range of the theoretical center coordinate position, the workbench and the spindle assembly move relative to each other to change the center position of all spindle assemblies in the second direction; a single spindle assembly slides along the first direction on the crossbeam to change the center coordinates of a single spindle in the first direction, so as to adjust the center coordinates of the spindle.

[0137] In the context of the present disclosure, the positions of the spindle, the positioning member, the positioning portion, and the positioning point are adjusted, or the center positions of the spindle, the positioning member, the positioning portion, and the positioning point are finely adjusted. Here, the adjustment or fine adjustment refers to making a fine adjustment according to the deviation between the actual center position and the theoretical center position. The adjustment range is usually at the micron level or the millimeter level. Due to the high assembly and processing accuracy of the circuit board processing equipment, the actual deviation that needs to be adjusted may be 20 microns, 10 microns, or even a few microns. Precise positioning and fine adjustment of the actual positions of each component can effectively improve the processing accuracy.

[0138] The various disclosures of the present disclosure have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed disclosures. Many modifications and variations are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described disclosures. The choice of terms used herein is intended to best explain the principles of the disclosures, the practical applications, or the improvements to the technology in the market, or to enable other ordinary skill in the art in the technical field to understand the disclosures disclosed herein. The scope of the present disclosure is defined by the appended claims.

Claims

1. A method for calibrating an air clamp assembly, characterized in that: include: Control the spindle assembly to move to a preset position, control the positioning member to extend into a first positioning area of ​​a first positioning portion of the air clamp assembly and move within the first area, and control the first positioning portion to clamp the positioning member to correct the position of the first positioning portion; Detecting the position deviation of the main shaft of the main shaft assembly and the detection member on the air clamp assembly; and determining the position of the first positioning point of the first positioning portion based on the position deviation.

2. The calibration method of the air clamp assembly according to claim 1, characterized in that: Determining the position of the first positioning point of the first positioning portion includes, when the position deviation is not within a preset threshold range, compensating the position deviation to the first positioning point, and controlling the positioning member to adjust the position of the first positioning portion again.

3. The calibration method of the air clamp assembly according to claim 1, characterized in that: The movement of the positioning member within the first area includes: the positioning member moves to the position of the first positioning point, and the first positioning portion follows the movement of the positioning member.

4. The calibration method of the air clamp assembly according to claim 1, characterized in that: The controlling the first positioning portion to clamp the positioning piece includes, in a process of controlling the first positioning portion to switch to a closed state, approaching, abutting and actively clamping the positioning piece multiple times from a circumferential direction to determine the position of the first positioning point.

5. The calibration method of the air clamp assembly according to claim 4, characterized in that: When the first positioning portion circumferentially abuts against and clamps the positioning piece, the first positioning point is the center of an inscribed circle of at least two side wall enclosed areas of the first positioning portion.

6. The calibration method of the air clamp assembly according to claim 1, characterized in that: The detecting of the position deviation of the main shaft of the main shaft assembly and the detecting part on the air clamp assembly includes controlling the main shaft and the detecting part to move relative to each other to the same target position, judging the concentricity based on the electrical signals of the two, and determining the position difference between the two based on the concentricity.

7. The calibration method of the air clamp assembly according to claim 1, characterized in that: Before controlling the spindle assembly to move to a preset position, the method further includes detecting an actual distance between the spindle and the positioning member in a first direction and a second direction, and determining a position of the positioning member based on the actual distance.

8. The calibration method of the air clamp assembly according to claim 7, characterized in that: The detecting of the actual spacing includes: detecting the spacing between the detection member clamped by the spindle and the positioning member relative to the same detection component on the workbench.

9. The calibration method of the air clamp assembly according to any one of claims 1 to 8, characterized in that: The positioning member is controlled to extend into the second positioning area of ​​the second positioning portion of the air clamp assembly and move within the second area. The second positioning portion clamps the positioning member to determine the position of the second positioning point.

10. A method for detecting a positioning member, characterized in that: include: The spindle clamping positioning piece approaches the detection component on the workbench to obtain the position deviation data of the spindle; The adjusting mechanism holds the positioning piece close to the detection component on the workbench to obtain the position deviation data of the adjusting mechanism; The relative position of the main shaft and the positioning member is obtained according to the position deviation data of the main shaft and the position deviation data of the adjusting mechanism.

11. A method for detecting a positioning member, characterized in that: include: Control the spindle to hold the inspection piece and move it to the inspection assembly on the workbench; Controlling the positioning member to move to the detection component, determining an actual spacing between the spindle and the positioning member in a first direction and a second direction based on an electrical signal generated when the detection member and the positioning member contact the detection assembly; Based on the actual spacing, the position of the positioning member is determined.

12. A method for calibrating an air clamp assembly, characterized in that: include: S10: Control the positioning member to move to a preset position; S20: Controlling the positioning part and the locking part of the air clamp assembly to open, wherein the positioning part is surrounded to form a positioning area; S30: controlling the positioning member to descend until it extends into the positioning area; S40: controlling the positioning member to move to a positioning point within the positioning area; S50: Control the positioning portion to switch to a closed state to clamp the positioning member and determine the position of the positioning point.

13. A method for calibrating an air clamp assembly, characterized in that: include: S100: Control the positioning portion to open, and the positioning portion is surrounded to form a positioning area; S200: Control the positioning member to move to just above the positioning point; S300: Control the positioning member to descend until it extends into the positioning area, and the positioning member is located at the positioning point; S400: Control the locking part to switch to a released state; S500: Control the positioning portion to switch to a closed state to clamp the positioning member and determine the position of the positioning point.

14. The calibration method of the air clamp assembly according to any one of claims 12 or 13, characterized in that: The locking part is controlled to switch to a state of locking the position of the air clamp assembly, and the position of the positioning point is calibrated and recorded; the positioning part is controlled to open, and the positioning member rises from the positioning area.

15. A circuit board processing device, characterized in that: include: A spindle assembly, the spindle assembly comprising a spindle and a positioning member, An air clamp assembly, the air clamp assembly comprising a first positioning area of ​​a first positioning portion, the first positioning area comprising a first positioning point, The positioning member extends into the first positioning area and moves toward the first positioning point, so that the first positioning portion moves toward the first positioning point to determine the position of the first positioning portion; The control spindle detects the position of the air clamp assembly, and determines whether the calibration of the air clamp assembly is qualified based on the position deviation between the two.

16. The circuit board processing equipment according to claim 15, characterized in that: The air clamp assembly includes a second positioning area of ​​a second positioning part, the second positioning area includes a second positioning point, and the positioning member is controlled to extend into the second positioning area and move toward the second positioning point to determine the position of the first positioning part; the position of the air clamp assembly is determined based on the position of the first positioning part and the second positioning part.

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