Automatic adjusting device of pneumatic clamping assembly and circuit board processing equipment

Abstract

The utility model relates to the technical field of circuit board processing equipment, in particular to an automatic adjusting device of a pneumatic clamping assembly, which comprises a first guide mechanism used for supporting a first positioning part and provided with at least one moving degree of freedom; and the adjusting mechanism is installed on a main shaft assembly of the circuit board machining equipment, the adjusting mechanism comprises a driving part and a positioning piece, and the driving part is used for controlling the positioning piece to move to the clamping groove of the first positioning part from the preset position. The utility model further provides circuit board processing equipment. The main shaft assembly moves to drive the adjusting mechanism to adaptively move, the convenience and accuracy of automatic adjustment of the clamp are improved, meanwhile, the detection assembly for calibrating the positioning piece is designed, the accuracy of adjustment and positioning of the clamp can be further improved, the overall design is simple, and the practicability is high. Automatic adjusting and positioning can be achieved, labor is saved, and the adjusting efficiency is higher.

Description

[0001] This application claims priority to Chinese Patent Application No. 202421421007.6, filed on June 20, 2024, entitled "An Automatic Adjustment Device for a Pin Clamp and a Drilling Device", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of equipment or methods for manufacturing printed circuits, and more specifically, to a method for calibrating a pneumatic clamp assembly, a method for detecting a positioning element, and circuit board processing equipment. Background Technology

[0003] Before the circuit board processing equipment starts operating, the circuit board material to be processed must be fixed on the table of the equipment. The circuit board is secured by inserting pins, and then the clamping and positioning device on the machine clamps the pins, with the fixed position of the pins serving as a fixed origin. After obtaining the relative coordinates between the required drilling positions on the circuit board material and the origin, the circuit board processing equipment moves the spindle to the calibrated position to process the material.

[0004] After a period of operation, the pin clamping mechanism on the circuit board processing equipment may shift due to vibrations during processing, causing the pin fixing position to deviate from its set origin. Therefore, after a period of normal machine operation, the clamping mechanism needs to be manually adjusted and reset. This adjustment process is time-consuming and lacks precision.

[0005] Based on this, in order to further optimize the adjustment convenience of the existing pin clamping mechanism, we propose an automatic adjustment device for the pneumatic clamp assembly and a circuit board processing equipment. Utility Model Content

[0006] The purpose of this disclosure is to address the shortcomings of existing technologies, such as the time-consuming adjustment and reset of the clamping mechanism, and to propose an automatic adjustment device for a pneumatic clamp assembly and a circuit board processing equipment.

[0007] To achieve the above objectives, this disclosure adopts the following technical solution: an automatic adjustment device for a pneumatic clamp assembly is designed, comprising: a first guide mechanism for supporting a first positioning part, the first guide mechanism having at least one degree of freedom of movement; and an adjustment mechanism, the adjustment mechanism being mounted on the spindle assembly of a circuit board processing equipment, the adjustment mechanism including a drive part and a positioning member, the drive part being used to control the positioning member to move at a predetermined position into the clamping groove of the first positioning part, so as to force the first guide mechanism to move and position within at least one degree of freedom of movement.

[0008] In some embodiments of this disclosure, the first guide mechanism includes a first guide rail assembly for constructing a first degree of freedom in a first direction and a second guide rail assembly for constructing a second degree of freedom in a second direction, the second guide rail assembly being mounted on the moving part of the first guide mechanism.

[0009] In some embodiments of this disclosure, a first locking part is further provided on the moving parts of the first guide rail assembly and the second guide rail assembly, and the two first locking parts constrain the degree of freedom of movement of the first guide mechanism.

[0010] In some embodiments of this disclosure, the adjustment mechanism further includes a guide portion, which includes a guide section and a sliding section. The guide section is used to constrain the sliding direction of the sliding section; the driving portion is used to drive the sliding section to slide; and the positioning member is installed below the sliding section.

[0011] In some embodiments of this disclosure, a mounting bracket for connection to the spindle assembly is also included, with the drive portion and guide portion both fixed to the mounting bracket.

[0012] In some embodiments of this disclosure, a fixing seat is fixedly installed below the sliding part, and a first needle seat and a second needle seat are fixedly fixed on the side of the fixing seat in sequence, with a positioning member clamped between the first needle seat and the second needle seat.

[0013] In some embodiments of this disclosure, a second guide mechanism is further included for supporting the second positioning part, the centerline of which coincides with that of the first positioning part; wherein the second guide mechanism has at least one degree of freedom of movement.

[0014] In some embodiments of this disclosure, the second guiding mechanism includes a third guide rail assembly for constructing a first directional degree of freedom, and a second positioning portion is fixed to a movable portion of the third guide rail assembly.

[0015] In some embodiments of this disclosure, a second locking part is provided on the moving part of the third guide rail assembly, and the second locking part restricts the degree of freedom of movement of the second guide mechanism.

[0016] In some embodiments of this disclosure, a detection component is also included, which is used to detect the relative position between the positioning element and the spindle chuck of the spindle assembly to eliminate positional errors of the positioning element.

[0017] In some embodiments of this disclosure, the detection component includes a bracket mounted on a machine base. The bracket has two perpendicular mounting surfaces, on which a first sensor and a second sensor are fixed respectively. The first sensor and the second sensor are connected to a controller and are used to acquire position data of the positioning component and the spindle chuck in a first direction and a second direction, respectively.

[0018] Furthermore, this disclosure also proposes a circuit board processing device, including a spindle assembly, the spindle assembly including a spindle and a positioning member, a pneumatic clamp assembly, the pneumatic clamp assembly including a first positioning region of a first positioning part, the first positioning region including a first positioning point, the positioning member extending into the first positioning region and moving toward the first positioning point, so as to move the first positioning part toward the first positioning point to determine the position of the first positioning part.

[0019] The automatic adjustment device for the pneumatic clamp assembly and the circuit board processing equipment disclosed herein have the following advantages: (1) In this disclosure, the adjustment mechanism is driven to move adaptively by the movement of the spindle assembly, without the need to design an additional drive source. At the same time, the action coordination is higher, which improves the convenience and accuracy of automatic adjustment of the clamp. At the same time, a detection component for calibrating the positioning component is designed, which can further improve the accuracy when adjusting and positioning the clamp. The overall design is simple, and automatic adjustment and positioning can be realized, saving manpower and increasing adjustment efficiency; (2) Based on the positioning component of the spindle assembly, the position of the positioning part of the pneumatic clamp assembly can be automatically adjusted; (3) Based on the two positioning points of the two positioning parts, the position of the pneumatic clamp assembly relative to the worktable is determined; (4) After the position of the pneumatic clamp assembly is corrected, the position of each circuit board is accurately positioned, improving the processing accuracy and processing quality.

[0020] Other features and advantages of this disclosure will become clear from the following detailed description of exemplary disclosures with reference to the accompanying drawings. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate the disclosure of this disclosure and, together with their description, serve to explain the principles of this disclosure.

[0022] Figure 1 This is a schematic diagram of a partial structure of a circuit board processing equipment provided in an embodiment of the present disclosure;

[0023] Figure 2 This is a schematic diagram of a partial structure of a circuit board processing equipment provided in an embodiment of the present disclosure;

[0024] Figure 3 This is a partial structural diagram of the adjustment mechanism provided in an embodiment of the present disclosure;

[0025] Figure 4 This is a schematic diagram of a portion of the structure of an air clamp assembly provided in an embodiment of the present disclosure;

[0026] Figure 5 This is a partial structural diagram of the first positioning part provided in an embodiment of the present disclosure;

[0027] Figure 6 This is a schematic diagram of a portion of the spindle assembly provided in an embodiment of the present disclosure;

[0028] Figure 7 This is a partial structural schematic diagram of a pneumatic clamp assembly on a workbench provided in an embodiment of the present disclosure;

[0029] Figure 8 This is a partial structural diagram of the second positioning part provided in an embodiment of the present disclosure;

[0030] Figure 9 This is a partial structural schematic diagram of the detection positioning component of a detection assembly provided in an embodiment of the present disclosure;

[0031] Figure 10 This is a partially enlarged structural diagram of the detection positioning element of a detection component provided in an embodiment of this disclosure;

[0032] Figure 11 This is a partial structural diagram of a detection component provided in an embodiment of the present disclosure;

[0033] Figure 12 This is a schematic diagram of a portion of the structure of an air clamp assembly provided in an embodiment of the present disclosure;

[0034] Figure 13 This is a partial structural diagram of the first positioning part provided in an embodiment of the present disclosure;

[0035] Figure 14 This is a partial structural diagram of the first positioning part provided in an embodiment of the present disclosure;

[0036] Figure 15 This is a partial structural diagram of the second positioning part provided in an embodiment of the present disclosure;

[0037] Figure 16 This is a partial structural diagram of the second positioning part provided in an embodiment of the present disclosure;

[0038] Figure 17 This is a partial structural diagram of a circuit board processing equipment provided in an embodiment of the present disclosure.

[0039] Figures 1 to 17The one-to-one correspondence between the component names and the reference numerals in the figure is as follows: In the figure: 400, base; 300, crossbeam; 200, spindle assembly; 100, worktable; 110, pneumatic clamp assembly; 1, first positioning part; 2, first guide mechanism; 21, first guide rail assembly; 22, second guide rail assembly; 23, first locking part; 3, adjustment mechanism; 31, drive part; 32, positioning element; 33, guide part; 34, mounting bracket; 35, fixed seat; 36, first needle seat; 37, second needle seat; 4, second positioning part; 5, second guide 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. Detailed Implementation

[0040] Various exemplary disclosures of this disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these disclosures do not limit the scope of this disclosure.

[0041] The following description of at least one exemplary disclosure is merely illustrative and is in no way intended to limit this disclosure or its application or use. Techniques, methods, and apparatus known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and apparatus should be considered part of the specification. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0042] The specific embodiments of this disclosure are described below with reference to the accompanying drawings. In this document, terms such as "upper," "lower," "front," "back," "left," and "right" are used only to indicate the relative positional relationship between related parts, and not to limit the absolute position of these related parts. In this document, terms such as "first" and "second" are used only to distinguish them from each other, and not to indicate degree of importance, order, or prerequisite for each other's existence. In this document, terms such as "equal," "aligned," "aligned," "vertical," "horizontal," "above," "below," "consistent," "synchronous," "simultaneously," "in sequence," and "first and last" are not strict mathematical and / or geometric limitations, but also include errors that are understandable to those skilled in the art and permissible in manufacturing or use.

[0043] like Figure 17As shown, the circuit board processing equipment in this disclosure includes: a base 400, a crossbeam 300, a spindle assembly 200, a worktable 100, etc. The worktable 100 is disposed on the base 400 and moves along a second direction. Multiple spindle assemblies 200, moving along a first direction, are slidably mounted on the crossbeam 300, which is mounted above the worktable 100. The spindle of each spindle assembly 200 moves along a third direction to process the circuit board carried on the worktable 100. The first direction, the second direction, and the third direction are perpendicular to each other. In the context of this disclosure, the circuit board processing equipment can be a drilling machine, a forming machine, a milling machine, a drilling and milling integrated machine, etc., and is not limited thereto. In the context of this disclosure, the number of spindle assemblies in the circuit board processing equipment can be one, two, three, four, five, six, eight, ten, twelve, etc., and is not limited thereto.

[0044] like Figure 17 , Figure 7 , Figure 12 , Figure 4 As shown, at least one pneumatic clamp assembly 110 is provided on the worktable 100, and each pneumatic clamp assembly 110 positions a circuit board. To correct the position of the pneumatic clamp assembly 110, the circuit board processing equipment of this disclosure includes: a spindle assembly 200 and a pneumatic clamp assembly 110. The spindle assembly 200 includes a spindle and a positioning member 32. The pneumatic clamp assembly 110 includes a first positioning part 1, which includes a first guide 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, causing the first positioning part 1 to move towards the first positioning point 12, thus determining the position of the first positioning part 1. The spindle is controlled to detect the position of the pneumatic clamp assembly 110, and based on the positional deviation between the two, it is determined whether the correction of the pneumatic clamp assembly 110 is qualified. This circuit board processing equipment can: based on the positioning components set on the spindle assembly, it can automatically adjust the position of the pneumatic clamp assembly, and then correct and judge whether the position of the pneumatic clamp assembly is qualified; after the pneumatic clamp assembly is corrected to the qualified position, the pneumatic clamp assembly accurately positions the position of each circuit board, thereby improving processing accuracy and processing quality.

[0045] Since two pins are provided on the back side of the circuit board, two corresponding positioning points are configured on the air clamp assembly 110: a first positioning point 12 and a second positioning point 42. The circuit board's position on the worktable 100 is determined based on the two pins, and correspondingly, the position of the air clamp assembly 110 is determined based on the two positioning points 12 and 42. The line connecting the first positioning point 12 and the second positioning point 42 coincides with the line connecting the two pins on the back side of the circuit board. When the air clamp assembly 110 fixes the circuit board on the worktable 100, the two pins on the back side of the circuit board are located at the first positioning point 12 and the second positioning point 42 of the air clamp assembly, respectively. Therefore, the air clamp assembly 110 includes a second positioning part 4, which includes a second guide mechanism 5 and a second positioning area 41. The second positioning area 41 includes a second positioning point 42. The control positioning member 32 extends into the second positioning area 41 and moves toward the second positioning point 42 to determine the position of the second positioning part 4. Based on 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; based on the positions of the first positioning point 12 and the second positioning point 42, the position of the air clamp assembly 110 is determined.

[0046] Reference Figure 1-12 As one embodiment of this disclosure, an automatic adjustment device for a pneumatic clamp assembly is disclosed. This automatic adjustment device is used to automatically adjust and position the pneumatic clamp assembly to solve the inconvenience caused by the need for manual adjustment and reset of the pneumatic clamp assembly when the overall displacement occurs due to vibration during processing. This disclosure realizes automatic alignment of the pneumatic clamp assembly, saves working time, and improves efficiency.

[0047] Specifically, on the workbench 100 of the circuit board processing equipment, the pneumatic clamp assembly 110 of this disclosure includes: a first guide mechanism 2 for supporting the first positioning part 1, the first guide mechanism 2 having at least one degree of freedom of movement. Here, the degree of freedom of movement refers to the movement of the first positioning part 1 along a first direction and a second direction on the first guide mechanism 2, the first direction and the second direction being perpendicular to each other.

[0048] Reference Figure 1 , Figure 3 , Figure 6 and Figure 9The spindle assembly 200 includes a spindle and an adjustment mechanism 3. The adjustment mechanism 3 is mounted on the spindle assembly 200 of the drilling equipment and is fixedly connected to the spindle. The adjustment mechanism 3 includes a drive part 31 and a positioning element 32. Preferably, in this disclosure, the positioning element 32 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 that passes through the first positioning part 1 and the second positioning part 4. The drive part 31 is used to control the positioning element 32 to move to a predetermined position into the clamping groove 7 of the first positioning part 1, so as to force the first guide mechanism 2 to move and be positioned within at least one degree of freedom of movement. The first positioning part 1 includes at least two side walls 10 with surface structures. The at least two side walls 10 surround to form the clamping groove 7. The clamping groove 7 includes a first positioning area 11. The positioning element 32 moves within the first positioning area 11, driving the first positioning part 1 to move along the first guide mechanism 2 relative to the worktable 100, thereby correcting and positioning the position of the first positioning part 1. The first positioning part 1 includes an open state and a closed state. In the open state, at least two parts of the sidewalls 10 of at least two surface structures of the first positioning part 1 are arranged in the clamping groove 7 to form a first positioning area 11. In the closed state, at least two parts of the sidewalls 10 of the first positioning part 1 are confined within the first positioning area 11 to form a positioning point.

[0049] Reference Figure 4 In some embodiments, the first guide mechanism 2 in this disclosure includes a first guide rail assembly 21 for constructing a first degree of freedom in a first direction and a second guide rail assembly 22 for constructing a second degree of freedom in a second direction. The first guide rail assembly 21 extends along a first direction, and the second guide rail assembly 22 extends along a second direction. The second guide rail assembly 22 is mounted on the moving part of the first guide mechanism 2. Furthermore, the first positioning part 1 is fixed on the moving part of the second guide rail assembly 22. By means of the sliding ability of the first guide rail assembly 21 and the second guide rail assembly 22, the first positioning part 1 can move relative to the worktable along the first direction and the second direction to realize the adjustment of the two degrees of freedom of the first positioning part 1.

[0050] It should be noted that in this disclosure, the first and second directions are designed perpendicularly, and the plane they construct is flush with the upper surface of the worktable. The plane constructed by the third direction, which is perpendicular to the first and second directions, is also perpendicular to the plane on which the worktable is located. Secondly, in this disclosure, "first," "second," etc., are used only to distinguish each other, and not to indicate degree of importance, order, or prerequisite for each other's existence.

[0051] Reference Figure 5Based on the above embodiments, this disclosure further provides first locking parts 23 on the moving portions of the first guide rail assembly 21 and the second guide rail assembly 22, respectively. The first locking parts 23 switch between locked and released states. The two first locking parts 23 constrain the movement freedom of the first guide mechanism 2, locking the first positioning part 1 onto the worktable, thus achieving positioning locking and releasing of the first positioning part 1. Preferably, the first locking part 23 in this disclosure is an electric guide rail lock. The electric control method allows for automated unlocking and locking of the first guide rail assembly 21 and the second guide rail assembly 22 during positioning adjustments, greatly improving operational convenience. Furthermore, electric guide rail locks are existing technology and will not be elaborated upon here.

[0052] Reference Figure 3 Furthermore, in this disclosure, the spindle assembly 200 includes an adjustment mechanism 3 and a spindle. The adjustment mechanism 3 includes a positioning member 32 and a guide portion 33. The guide portion 33 includes a guide section and a sliding section. The guide section is used to constrain the sliding direction of the sliding section. In this disclosure, the positioning member 32 follows the sliding direction of the sliding section and is set to a third direction, which is perpendicular to the first and second directions. In addition, the drive portion 31 in this disclosure is preferably a cylinder, and the shaft end of the cylinder is fixedly connected to the sliding section to control the movement of the sliding section. Specifically, the drive portion 31 is used to drive the sliding section to slide, and the positioning member 32 is installed below the sliding section. Driven by the drive portion 31, the positioning member 32 can move up and down along the third direction on the guide portion 33, creating conditions for the positioning member 32 to descend and extend into the first positioning area 11 and the second positioning area 41 of the pneumatic clamp assembly.

[0053] Reference Figure 3 , 6 Based on the above disclosure, the adjustment mechanism 3 in this disclosure further includes a mounting bracket 34 for connection with the spindle assembly, and the drive part 31 and the guide part are both fixed on the mounting bracket 34. (See reference...) Figure 3Of course, the installation and adjustment of the positioning component 32 must also be considered. A fixed base 35 is fixedly installed below the sliding part. A first needle seat 36 and a second needle seat 37 are fixedly fixed to the side of the fixed base 35 in sequence. The positioning component 32 is clamped between the first needle seat 36 and the second needle seat 37. Specifically, in this disclosure, the first needle seat 36 and the second needle seat 37 are fastened together by bolts. In addition, grooves are provided on the opposite surfaces of both, and the two grooves form a circular hole for placing the positioning component 32. The height of the positioning component 32 can be adjusted by removing the second needle seat 37. At the same time, in this disclosure, several threaded holes can be opened on the end face of the fixed base 35. By connecting and matching the first needle seat 36 with different threaded holes, the left and right positioning adjustment of the positioning component 32 can be realized. That is to say, in the adjustment mechanism 3, the posture of the positioning component 32 can be adjusted, including the position in the first direction, the second direction, and the third direction, so as to adapt the position of the first positioning area 11 and the second positioning area 41 of the air clamp assembly to a reasonable initial position.

[0054] Specifically, in this disclosure, the adjustment mechanism 3 is mounted on the spindle assembly 200 and its relative position to the spindle of the spindle assembly 200 in the XY direction is fixed. The driving component 31 drives the positioning component 32 to move up and down along the third direction. If the center coordinate of the spindle is the origin (0, 0), then the theoretical position coordinates of the positioning component 32 are set as (A, B), and the positioning component 32 is spaced at a predetermined distance relative to the spindle in the first and second directions.

[0055] In this disclosure, during the adjustment process of the adjusting mechanism 3 and the first positioning part 1 of the pneumatic clamp assembly 110, the control positioning member 32 descends and extends into the first positioning area 11 of the first positioning part 1 to adjust the position of the first positioning part 1 and correct the first positioning point 12. Specifically, in conjunction with... Figures 1 to 12 The automatic alignment principle of the first positioning unit 1 in this disclosure includes the following steps:

[0056] 1) Objective: To achieve automatic coaxial alignment between the spindle of the PCB drilling machine and the pins held by the first positioning part 1. To adjust and correct the position of the pneumatic clamp assembly 110, a detection element can be set up. When the detection element includes the pins, the coaxial alignment of the pins on the pneumatic clamp assembly 110 and the pins held by the spindle is used to determine whether the correction position of the pneumatic clamp assembly 110 is qualified. During the detection process, when the concentricity of the pins meets a predetermined threshold requirement, it is determined that the pins held by the spindle and the pins on the pneumatic clamp assembly are coaxial, thus confirming that the position adjustment of the pneumatic clamp assembly is qualified.

[0057] 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 locked. In the initial state, the first positioning part 1 of the pneumatic clamp assembly is open, and the clamping groove 7 of the first positioning part 1 includes a first positioning area 11, which is located below the positioning member 32 and in a position that allows the positioning member 32 to extend into it. The adjusting structure 3 of the spindle assembly is located above the pneumatic clamp assembly 110, and the positioning member 32 is located above the first positioning area 11 of the first positioning part 1. The first locking part 23 is locked, and the first positioning part 1 cannot move.

[0058] 3) The adjustment mechanism 3 moves with the spindle assembly 200 to the theoretical adjustment position, and the drive component 31 drives the positioning component 32 to descend. The spindle assembly 200 is controlled to move, and the adjustment mechanism 3 moves along with it until the positioning component 32 is moved directly above the first positioning point 12. That is, the spindle assembly is first controlled to move the positioning component 32 directly above the first positioning point 12, and then it descends into the first positioning area to adjust the position of the positioning part 32. After the positioning component 32 reaches directly above the first positioning point 12, the drive component 31 drives the positioning component 32 to descend until it extends into the first positioning area 11. It should be noted that the first positioning area 11 is large enough to ensure that the positioning component 32 can extend into the first positioning area 11 after descending.

[0059] 4) The first locking part 23 opens. Both first locking parts 23 switch 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 member 32 to drive the first positioning part 1 to move along the first direction and the second direction.

[0060] 5) The first positioning part 1 clamps the positioning member 32, correcting its position. The first positioning part 1 is controlled to switch from an open to a closed state to clamp the positioning member 32. Specifically, during the closing process of the first positioning part 1, at least two parts of the sidewall 10 approach, abut, and repeatedly clamp the outer peripheral sidewall of the positioning member 32 from the circumferential direction. The outer peripheral sidewall of the positioning member 32 exerts a reverse compressive force on the sidewall 10 of the first positioning part 1, driving the first positioning part 1 to move along the first and second directions on the first guide rail 21 and the second guide rail 22. At this time, the sidewall 10 of the first positioning part 1 moves closer to the positioning member 32 until it completely clamps the positioning member 32. When the first positioning part 1 clamps the positioning member 32, the first positioning point 12 is the center of the inscribed circle of the area enclosed by the at least two sidewalls 10 of the first positioning part 1. Therefore, based on the driving of the positioning member 32, the center point of the first positioning part 1 is corrected to the first positioning point 12, the position of the first positioning part 1 is adjusted, the position of the first positioning point 12 of the air clamp assembly 110 is determined, thereby achieving the technical effect of adjusting the position of the air clamp assembly 110.

[0061] 6) After positional correction, the first locking part 23 locks. Adjust the position of the first positioning part 1 of the pneumatic clamp assembly 110. After determining the position of the first positioning point 12 of the pneumatic clamp 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, preventing the first positioning part 1 from moving relative to the worktable; 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 worktable and do not restrict the opening and closing states of the first positioning part 1.

[0062] 7) The first positioning part 1 opens, and the driving component 31 drives the positioning member 32 to rise; the pin adjustment is completed. The first locking part 23 locks the position of the first positioning part 1. After determining the position of the first positioning point 12 of the air clamp assembly, the first positioning part 1 switches to the open state to release the positioning member 32. The control driving component 31 drives the positioning member 32 to rise in a third direction, thereby completing the task of adjusting the first positioning point 12 of the air clamp assembly based on the positioning member 32.

[0063] In the first positioning part 1 and the second positioning part 4 of the pneumatic clamp assembly 110 disclosed herein, a calibration method for the pneumatic clamp assembly is applied, comprising the following steps:

[0064] S100: The positioning unit is opened, and the positioning unit surrounds and forms a positioning area;

[0065] S200: Control the positioning element to move directly above the positioning point;

[0066] S300: Control the positioning element to descend into the positioning area, and the positioning element is located at the positioning point;

[0067] S400: Control the locking part to switch to the released state;

[0068] S500: Control the positioning unit to switch to the closed state to clamp the positioning element and determine the position of the positioning point.

[0069] During the process of adjusting the first positioning part 1 by the positioning member 32, the first positioning part 1 is opened and the first positioning part 1 surrounds and forms the first positioning area 11; the positioning member 32 is moved to be directly above the first positioning point 12; the positioning member 32 is lowered until it extends into the first positioning area 11 and the positioning member 32 is located at the position of the first positioning point 12; the first locking part 23 is switched to the release state; the first positioning part 1 is switched to the closed state to clamp the positioning member 32 and determine the position of the first positioning point 12.

[0070] During the process of adjusting the second positioning part 4 by the positioning member 32, the second positioning part 4 is opened and the second positioning part 4 surrounds and forms the second positioning area 41; the positioning member 32 is moved to be directly above the second positioning point 42; the positioning member 32 is lowered until it extends into the second positioning area 41 and the positioning member 32 is located at the position of the second positioning point 42; the second locking part 52 is switched to the release state; the second positioning part 4 is switched to the closed state to clamp the positioning member 32 and determine the position of the second positioning point 42.

[0071] 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 clamp assembly 110 to the required correct position. It should be noted that the offset of the air clamp assembly 110 is uncertain. Sometimes, adjusting the position of the first positioning part 1 and correcting the position of the first positioning point 12 is sufficient to correct the position of the air clamp assembly 110. Other times, it is necessary to adjust the positions of the first positioning part 1 and the second positioning part 4 separately to correct the positions of the first positioning point 12 and the second positioning point 42. Therefore, adjusting the position of the second positioning part 4 is not always necessary. Depending on the offset of the air clamp assembly 110, the position of the second positioning part 4 can be selectively adjusted, as long as the detection result after adjusting the first positioning part 1 meets the position correction requirements of the air clamp assembly 110.

[0072] Reference Figure 2 , 7The above example uses a first positioning part 1. This disclosure also includes a second guide mechanism 5 for supporting a second positioning part 4, the second positioning part 4 coinciding with the centerline of the first positioning part 1. The second positioning part 4 includes a through clamping groove 7, which includes a second positioning area 41, within which a second positioning point 42 is provided. The second positioning part 4 has open and closed states. In the open state, the side walls 40 of at least two surfaces of the second positioning part 4 enclose and form a second positioning area 41. In the closed state, the at least two side walls 40 of the second positioning part 4 constrict and form a positioning point.

[0073] At one end of the second positioning part 4 of the pneumatic clamp assembly, the second guide mechanism 5 has at least one degree of freedom of movement. That is, in this disclosure, the positioning part includes a first positioning part 1 and a second positioning part 4. With the operating side of the circuit board processing equipment as the front side, the first positioning part 1 is used to position the front pins of the PCB, that is, the front end pins on the back side of the circuit board; the second positioning part 4 is used to position the rear pins of the PCB, that is, the rear end pins on the back side of the circuit board. In addition, the specific structure of the positioning part has been disclosed in the prior art, and will not be described in detail here. The difference in this disclosure is that a clamping groove 7 is also provided on the end face of the second positioning part 4. The clamping groove 7 is connected to the clamping groove 7 of the second positioning part 4 to form a clamping groove 7 that runs through the entire pneumatic clamp assembly 110. The clamping groove 7 extends along the second direction. This enables the conveying and positioning of the PCB. When the PCB is conveyed, the rear pin at the bottom of the circuit board moves along the second direction in the clamping groove 7 from the first positioning part 1 to the second positioning point 42 of the first positioning part 4 to achieve positioning, and the front pin moves in the clamping groove 7 to the first positioning point 12 of the first positioning part 1 to achieve positioning.

[0074] Reference Figure 8 In some embodiments, the second guide mechanism 5 in this disclosure includes a third guide rail assembly 51 for constructing a first degree of freedom in the direction. The second positioning part 4 is fixed to the movable part of the third guide rail assembly 51. Specifically, the third guide rail assembly 51 in this disclosure has the same structure as the first guide rail assembly 21 and the second guide rail assembly 22, and it may be configured as a guide rail and a slider mechanism. That is, the second positioning part 4 can move relative to the worktable through the second guide mechanism 5.

[0075] Based on the above disclosure, a second locking part 52 is provided on the moving part of the third guide rail assembly 51. The second locking part 52 restricts the degree of freedom of movement of the second guide mechanism 5. As mentioned above, the second locking part 52 is preferably set as an electric guide rail lock. The electric control method is that after the electric guide rail lock is connected to the controller, the third guide rail assembly 51 can be automatically unlocked and locked during positioning adjustment, which greatly improves the convenience of operation. Similar to the first locking part 23, the second locking part 52 can switch between locked and released states. When the second locking part 52 is switched to the locked state, the second positioning part 4 is fixed on the worktable by the second guide mechanism 5. When the second locking part 52 is switched to the released state, the second positioning part 4 can move relative to the worktable along the first direction on the second guide mechanism 5.

[0076] Furthermore, similar to the method and steps of the first positioning part 1, during the adjustment process of the second positioning part 4 of the adjusting mechanism 3 and the air clamp assembly 110, the positioning member 32 is controlled to descend and extend into the second positioning area 41 of the second positioning part 4, adjusting the position of the second positioning part 4 and correcting the second positioning point. Figures 1 to 12 The automatic alignment principle of the second positioning unit 4 in this disclosure includes the following steps:

[0077] 1) Initial state: The second positioning part 4 is in the open state, the adjusting mechanism 3 is above the second positioning part 4, and the second locking part 52 is in the locked state. The second positioning part is switched to the open state, and the second positioning part 4 forms the second positioning area 41.

[0078] 2) The adjusting mechanism 3 moves to the theoretical adjustment position, and the driving component 31 drives the positioning component 32 to descend. The control spindle assembly 200 drives the adjusting mechanism 3 to move, and the positioning component 32 moves to directly above the second positioning point 42. After the positioning component 32 reaches directly above the second positioning point 42, the driving component 31 drives the positioning component 32 to descend, and the positioning component 32 descends into the second positioning area 41 extending into the second positioning part 4. It should be noted that the range of the second positioning area 41 is large enough to ensure that the positioning component 32 can extend into the second positioning area 41 after descending.

[0079] 3) The second locking part 52 is opened. By controlling the second locking part 52 to switch to the released state, the second positioning part 4 can move relative to the worktable along the second guide mechanism 5.

[0080] 4) The second positioning part 4 clamps the positioning member 32, achieving position correction. The second positioning part 4 is controlled to switch to a 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 sidewalls 40 of at least two surface structures approach, abut, and repeatedly actively clamp the outer peripheral sidewall of the positioning member 32 from the circumferential direction. The positioning member 32 exerts a reverse compressive force on the sidewalls 40, driving the second positioning part 4 to move along the first direction on the third guide rail assembly 51. At this time, the sidewalls 40 of the second positioning part 4 move towards the positioning member 32 until the positioning member 32 is fully clamped. The second positioning point 42 is the center of the inscribed circle of the area enclosed by the at least two sidewalls 40 of the second positioning part 4. Therefore, based on the driving 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, the position of the second positioning part 4 of the air clamp assembly is determined, thereby achieving the technical effect of adjusting the position of the air clamp assembly.

[0081] 5) After the position is corrected, the second locking part 52 locks and achieves positioning; after the position of the second positioning part 4 of the air clamp assembly is determined, the second locking part 52 switches to the locked state, locks the position of the second positioning part 4 relative to the worktable, and marks and records the position of the second positioning point 42.

[0082] 6) The second positioning part 4 opens, and the driving component 31 drives the positioning member 32 to rise; the pin alignment is completed. The second locking part 52 locks the position of the second positioning part 4. After determining the position of the second positioning point 42 of the air clamp assembly, the second positioning part switches to the open state to release the positioning member 32. The control driving component 31 drives the positioning member 32 to rise in a third direction, thereby completing the task of calibrating the second positioning point 42 of the air clamp assembly 110 based on the positioning member 32.

[0083] Furthermore, the spindle assembly 200 includes a spindle and an adjustment mechanism 3, which is fixedly connected to the spindle. Therefore, the distance between the positioning element 32 held by the adjustment mechanism and the spindle is theoretically fixed. Considering that the relative position of the positioning element 32 held by the adjustment mechanism 3 relative to the spindle chuck will change over time, and this change will affect the adjustment accuracy, it is necessary to achieve real-time detection of the relative position of the positioning element 32 and the spindle. Specifically, this disclosure provides the following solution:

[0084] Reference Figure 9-11Specifically, this disclosure also includes a detection component 6 mounted on the worktable. The detection component 6 is used to detect the relative position between the positioning component 32 and the spindle chuck of the spindle assembly, so as to eliminate the positional error of the positioning component 32. In a preferred embodiment, the detection component 6 includes a bracket 61 mounted on the worktable. The bracket 61 has two perpendicular mounting surfaces, on which a first sensor 62 and a second sensor 63 are fixed respectively. The first sensor 62 and the second sensor 63 are connected to a controller and are used to acquire the first and second direction position data of the positioning component 32 and the spindle chuck, respectively. In specific detection, the relative position of the positioning component 32 held by the adjustment drive mechanism relative to the spindle chuck will change after a period of time. This change will affect the adjustment accuracy. Therefore, it is necessary to realize the real-time detection of the relative position of the positioning component 32 and the spindle. This 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 component 32 and the reference object, respectively. Then, calculate the relative position between the spindle and the positioning component 32 through software.

[0085] One solution provided in this disclosure is a method for acquiring coordinates through electrical signals, as follows:

[0086] 1. The spindle clamping and positioning component 32 obtains position deviation data from the first sensor 62 in the first direction and the second sensor 63 in the second direction, which are close to the safe theoretical position.

[0087] 2. The adjusting mechanism 3 clamps the positioning member 32 and also obtains position deviation data from the first sensor 62 in the first direction and the second sensor 63 in the second direction, which are close to the safe theoretical position.

[0088] 3. The actual relative position between the spindle and the positioning component 32 is obtained through software calculation. High-precision adjustment of the PI N clamp is achieved through software compensation.

[0089] This scheme provides a method for detecting a positioning component, including: a spindle clamping the positioning component close to a detection component on a worktable to obtain spindle position deviation data; an adjustment mechanism holding the positioning component close to a detection component on the worktable to obtain adjustment mechanism position deviation data; and obtaining the relative position between the spindle and the positioning component based on the spindle position deviation data and the adjustment mechanism position deviation data. Specifically, by moving the same positioning component close to the same detection component using both the adjustment mechanism and the spindle, position deviation data is detected. Here, position deviation data refers to the distance between the adjustment mechanism and the spindle relative to the same detection component. Based on the difference between the spindle position deviation data and the adjustment mechanism position deviation data, the relative position deviation between the spindle and the positioning component is obtained, thereby determining the actual distance between the positioning component and the spindle. In this embodiment, the detection component is a sensor such as a tool setter or a detection component on the worktable.

[0090] In another embodiment of this disclosure, a method for detecting a positioning element is also provided. The spindle assembly includes a spindle and a positioning element clamped by an adjustment mechanism. Theoretically, the center positions of the spindle and the positioning element are fixed; however, due to factors such as high-speed motion, assembly, and thermal expansion and contraction, their center positions inevitably deviate. To reduce the accuracy error caused by this deviation, the actual position of the positioning element needs to be detected before adjusting the position of the pneumatic clamp assembly.

[0091] Specifically, this disclosure also provides another method for detecting a positioning element, including: controlling the spindle to move the detection element clamped by the detection element to a detection component on the worktable; controlling the positioning element to move to the detection component; determining the actual distance between the spindle and the positioning element in a first direction and a second direction based on the electrical signal of the detection element and the positioning element contacting the detection component; and determining the position of the positioning element based on the actual distance. This method for detecting a positioning element is based on the spindle clamping the detection element and the adjustment mechanism clamping the positioning element moving sequentially to the same detection component on the worktable. The electrical signal is generated by a sensor triggered by contact with the detection component (either by a CBD or by light blocking) to detect and determine the center position of the detection element clamped by the spindle and the positioning element clamped by the adjustment mechanism. Then, the actual distance between the detection element and the positioning element is calculated, and the actual position of the positioning element is determined based on the actual distance. In this embodiment, the detection component can be any cylindrical metal part on the worktable, such as a pin or a standard bar, or a sensor on the worktable, such as a tool setter or a detection component.

[0092] In the above method, the relative positions of the spindle and the positioning component are determined, and the actual coordinate position of the positioning component is found. This actual coordinate position prepares the positioning component for subsequent control of moving to the first and / or second positioning points. When the actual position of the positioning component is accurate, the relative movement of the positioning component is more precise. It should be noted that the theoretical center distance between the adjusting mechanism and the spindle is fixed, but after detecting the actual distance, the accuracy is higher, reducing the number of subsequent adjustments to the pneumatic clamp assembly, saving time and improving efficiency. Meanwhile, the positions of the adjusting mechanism and the spindle are determined by the center point of the clamped detection or positioning component. The detection and positioning components can be any cylindrical metal part such as a pin or a standard bar.

[0093] The above-mentioned scheme can achieve high-precision positioning and adjustment. In addition, those skilled in the art should know that the present disclosure is not limited to the use of sensors for detection, but can be any electrical signal acquisition scheme, including but not limited to CBD triggered electrical signals.

[0094] Furthermore, this disclosure also proposes a drilling device, including a worktable, a crossbeam, a spindle assembly, and the aforementioned pneumatic clamp assembly. The first positioning part 1 is fixed on the worktable, and the adjustment mechanism 3 is fixed on the side of the spindle assembly. The spindle assembly is used to clamp the cutting tool to realize the drilling operation on the PCB board. Of course, the aforementioned second positioning part 4 and detection component 6 are also fixed on the worktable. The adjustment mechanism 3 is driven to move adaptively by the movement of the spindle assembly, without the need to design an additional drive source. At the same time, the action coordination is higher, improving the convenience and accuracy of automatic adjustment of the clamp.

[0095] Example 1

[0096] Combined with appendix Figure 1 To be continued Figure 17 In some embodiments of this disclosure, a method for correcting the position of a pneumatic clamp assembly is provided, comprising: controlling a 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; controlling the first positioning part to clamp the positioning member to correct the position of the first positioning part; detecting the positional deviation between the spindle of the spindle assembly and the detection member on the pneumatic clamp assembly; and determining the position of a first positioning point of the first positioning part based on the positional deviation. This method for correcting a pneumatic clamp assembly can achieve: automatic adjustment of the position of the first positioning part of the pneumatic clamp assembly based on the positioning member of the spindle assembly; determination of the position of the pneumatic clamp assembly relative to the worktable based on the first positioning point of the first positioning part; and accurate positioning of each circuit board after correcting the position of the pneumatic clamp assembly, thereby improving processing accuracy and quality.

[0097] In the first positioning section of the pneumatic clamp assembly, the spindle assembly is first controlled to move the positioning element to a preset position directly above the first positioning area. Then, the positioning element is controlled to descend along a third direction and extend into the first positioning area, moving within the first area to the first positioning point; finally, the pneumatic clamp assembly is controlled to clamp the positioning element. Specifically, during the movement and clamping process, the positioning element moves the first positioning section towards the first positioning point, thereby adjusting the position of the first positioning section of the pneumatic clamp assembly and determining the coordinate position of the first positioning point. After determining the position of the first positioning point, it is checked whether the position of the first positioning point meets a predetermined threshold requirement. Specifically, the alignment of the detection element clamped by the spindle and the detection element on the pneumatic clamp assembly at the first positioning point is checked to determine whether the position correction of the first positioning point of the pneumatic clamp assembly is qualified.

[0098] In some embodiments of this disclosure, during the process of determining the position of the first positioning point of the first positioning unit based on the position deviation, if the position deviation is within a preset threshold range, the position correction of the first positioning point of the first positioning unit is deemed qualified; if the position deviation is not within the preset threshold range, the position deviation is compensated to the first positioning point, and the positioning component is controlled to correct the position of the first positioning unit again. Specifically, based on the detection result, compared with a preset deviation threshold, if the detected position deviation is within the preset deviation threshold range, the position correction is deemed qualified; if the detected position deviation is no longer within the preset deviation threshold range, the detected position deviation is compensated to the coordinate position of the first positioning point, and the positioning component is controlled to adjust the position of the first positioning unit again. In the specific adjustment process, the positioning component is controlled to move within the first positioning area, and the endpoint target position of its movement is the position of the first positioning point after deviation compensation; so as to achieve closed-loop precise adjustment and correction of the first positioning point.

[0099] In some embodiments of this disclosure, the adjustment and testing process is repeated until the calibration is qualified. Specifically, the positional deviation between the spindle and the detection element is detected, and the positional deviation is compensated back to the first positioning point. Then, the position of the first positioning part is corrected again using the positioning element. Based on the readjustment after the positional deviation compensation, the positional deviation between the spindle and the detection element is repeatedly detected. If the second detected positional deviation is within the preset deviation threshold range, the position adjustment of the first positioning point is qualified, and the adjustment and calibration are completed. If the second detected positional deviation is not within the preset deviation threshold range, the position adjustment of the first positioning point is unqualified. The second detected positional deviation is superimposed and compensated to the first positioning point, and the position of the first positioning point of the pneumatic clamp assembly is corrected again using the positioning element. This calibration and testing is repeated multiple times until the concentricity of the spindle and the detection element is qualified, the test is qualified, and the position adjustment and calibration of the first positioning point is completed.

[0100] Combined with appendix Figure 13 and Figure 14As shown, in some embodiments of this 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 clamp assembly following the movement of the positioning member. After the positioning member 32 extends into the first positioning region 11, the positioning member 32 is controlled to move within the first positioning region 11 until it moves to the position of the first positioning point 12. The first positioning part 1 of the air clamp assembly 110 includes at least two sidewalls 10 with surface structures, and at least two portions of the plurality of sidewalls 10 surround to form the first positioning region 11. During the movement, the positioning member 32 may abut against a sidewall 10 in a certain direction, and the positioning member 32 moves toward the first positioning point 12, driving the sidewall 10 in that direction to move toward the first positioning point 12, thus driving the first positioning part 1 to move toward 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 positional deviation. If the deviation is small, the positioning member may not abut against the sidewall of the first positioning part; if the deviation is large, the positioning member may abut against at least one sidewall of the first positioning part. Even without contact with the sidewall, the sidewall of the first positioning part can actively move closer to and contact the positioning member during the process of switching the first positioning part to the closed state, thereby achieving position adjustment.

[0101] Combined with appendix Figure 14 As shown, in some embodiments of this disclosure, controlling the pneumatic clamp assembly to clamp the positioning member includes, during the process of switching the pneumatic clamp assembly to the closed state, moving circumferentially closer to, abutting against, and actively clamping the positioning member multiple times to determine the position of the first positioning point. The positioning member 32 moves towards the first positioning point 12 within the first positioning area 11, and then the first positioning part 1 of the pneumatic clamp assembly actively moves closer to and clamps the positioning member 32. The pneumatic clamp assembly needs to accurately determine the position of the first positioning point. Therefore, during the process of switching the pneumatic clamp assembly to the closed state, since the positioning member 32 is stationary and located at the first positioning point 12, at least two sidewalls 10 of the first positioning part move circumferentially closer to and abut against the positioning member 32. During the abutment process, the positioning member 32 successively blocks at least one sidewall and applies a reverse compressive force to at least one sidewall. The reverse compressive force drives the first positioning part to move along a first direction and / or a second direction on the first guide rail assembly and the second guide rail assembly. This achieves fine-tuning of the position of the first positioning part 1, and by clamping the positioning member 32 through at least two sidewalls 10, the coordinate position of the first positioning point 12 is determined, and the position of the first positioning point 12 is calibrated and recorded.

[0102] In some embodiments of this disclosure, when the first positioning part 1 circumferentially abuts against and clamps the positioning member 32, the first positioning point 12 is the center of the inscribed circle of the area enclosed by at least two side walls 10 of the first positioning part 1. The first positioning part 1 abuts against the positioning member 32 circumferentially. Before fully abutting against the positioning member, at least two side walls of the first positioning part actively move towards the positioning member until they clamp the positioning member circumferentially. When at least two side walls 10 of the first positioning part 1 abut against and clamp the positioning member 32, the at least two side walls 10 of the first positioning part 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.

[0103] In some embodiments of this disclosure, detecting the positional deviation of the detection element on the spindle assembly and the pneumatic clamp assembly includes controlling the relative movement of the spindle and the detection element to the same target position, determining concentricity based on their electrical signals, and determining the positional difference between them based on the concentricity. After adjusting the position of the first positioning part 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, the detection element clamped by the spindle and the detection element clamped by the first positioning part are controlled to move relative to each other to the same target position, and the concentricity positional deviation between them at the same target position is determined by electrical signals. Specifically, a detection element can be placed at the first positioning point of the first positioning part. The spindle is controlled to clamp another detection element and move closer to the detection element clamped by the first positioning part. Since both detection elements are cylindrical metal parts, including but not limited to standard rods or pins, after the outer circumferences of the two metal parts abut against the sidewalls, the CBD detects a metal conduction signal. This signals the spindle to clamp the detection element and move it closer to the detection element clamped by the first positioning part from four directions. The conduction signals record four coordinate positions. Based on the centers of the inscribed circles of these four coordinate positions, the position of the detection element in the first positioning part is determined. This position is the actual position of the first positioning point, while the position of the detection element clamped by the spindle is the theoretical position of the first positioning point. By comparing the deviations of the actual and theoretical positions of the first positioning point in the first and second directions, the concentricity of the detection element clamped by the spindle and the detection element clamped by the first positioning part is compared. It should be noted that concentricity is relative. When the concentricity is within a preset threshold range, it indicates that the concentricity of the two is acceptable. Therefore, there will inevitably be a difference in the center coordinate positions of the two; this deviation is the positional difference between the spindle and the pneumatic clamp assembly.

[0104] like 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 holds the positioning member to determine the position of the second positioning point. The position deviation between the spindle of the spindle assembly and the detecting 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.

[0105] 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 hold the positioning member. Based on the movement and clamping, the positioning member带动 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 requirement. Specifically, based on whether the spindle and the detecting 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.

[0106] This calibration method of the air chuck assembly can achieve: based on the positioning member of the spindle assembly, the position of the positioning portion of the air chuck assembly can be automatically adjusted; based on the positioning points of at least one positioning portion, the position of the air chuck assembly relative to the workbench can be determined; (3) after calibrating the position of the air chuck assembly, the position of each circuit board can be accurately positioned, improving the processing accuracy and processing quality.

[0107] Embodiment 2

[0108] Combined with the attached Figure 1 to the attached Figure 17In some embodiments of this disclosure, a method for correcting the position of a pneumatic clamp assembly is provided, comprising: controlling a 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; controlling the first positioning part to clamp the positioning member to correct the position of the first positioning part; detecting the positional deviation between the spindle of the spindle assembly and the detection member on the pneumatic clamp assembly; and determining the position of a first positioning point of the first positioning part based on the positional deviation. This method for correcting a pneumatic clamp assembly can achieve: automatic adjustment of the position of the first positioning part of the pneumatic clamp assembly based on the positioning member of the spindle assembly; determination of the position of the pneumatic clamp assembly relative to the worktable based on the first positioning point of the first positioning part; and accurate positioning of each circuit board after correcting the position of the pneumatic clamp assembly, thereby improving processing accuracy and quality.

[0109] In this embodiment, the calibration method for the pneumatic clamp assembly and the circuit board processing equipment are the same as in Embodiment 1, and will not be repeated here. The difference lies in that a method for detecting the positioning element is included before calibrating the pneumatic clamp assembly. Specifically, before controlling the spindle assembly to move to the preset position, the method further includes detecting the actual distance between the spindle and the positioning element in the first and second directions, and determining the position of the positioning element based on the actual distance.

[0110] In Embodiment 1, the error between the spindle and the positioning component of the adjustment mechanism was ignored, and the distance between the spindle and the positioning component was assumed to be the theoretical distance. Therefore, the positioning component started moving towards the first or second positioning point based on the position of the spindle. In this embodiment, however, the actual distance between the positioning component of the adjustment mechanism and the spindle is detected first, and then the component moves towards the first or second positioning point based on the actual distance. This eliminates the error between the spindle and the positioning component of the adjustment mechanism, improves the correction accuracy, reduces the number of subsequent adjustments and corrections, and improves efficiency.

[0111] Specifically, before calibrating the position of the pneumatic clamp assembly, the position of the positioning component is detected. Therefore, this embodiment discloses a method for detecting the positioning component, including: controlling the spindle to move the detection component to a detection assembly on the worktable; controlling the positioning component to move to the detection assembly; determining the actual distance between the spindle and the positioning component in a first direction and a second direction based on the electrical signal of the detection component and the positioning component contacting the detection assembly; and determining the position of the positioning component based on the actual distance.

[0112] In this embodiment, the detection element is a pin, and the detection assembly is a CBD-fitted pin. First, the spindle is controlled to move the detection element to the detection assembly on the worktable. The spindle-clamped pin moves in a first direction to contact the pin of the detection assembly on the worktable. The outer peripheral wall of the spindle-clamped pin contacts the outer peripheral wall of the pin on the worktable, connecting the two pins electrically. The CBD receives this electrical signal and triggers the control system to record the spindle's movement distance. Multiple consecutive tests are performed to eliminate detection errors and obtain an average value. This accurately detects the distance between the spindle pin and the pin on the worktable in the first direction. Similarly, the spindle-clamped pin moves in a second direction to contact the pin of the detection assembly on the worktable. Based on the CBD's electrical signal, the distance between the spindle pin and the pin on the worktable in the second direction is determined. Multiple consecutive tests are performed to eliminate detection errors and obtain an average value.

[0113] The positioning element is then moved to the detection assembly. Specifically, the positioning element of the adjusting mechanism moves in the first direction to contact the pin of the detection assembly on the worktable. Based on the electrical signal of the CBD, the distance between the positioning element and the pin on the worktable in the first direction is determined. Similarly, the distance between the positioning element and the pin on the worktable in the second direction is determined.

[0114] Based on the electrical signals from the contact between the spindle clamping pin and the positioning component, the distance between the spindle pin and the pin on the worktable in the first and second directions, as well as the distance between the positioning component and the pin on the worktable in the first and second directions, are first determined. The difference in the same direction is calculated to determine the actual distance between the positioning component and the spindle in the first and second directions.

[0115] Finally, based on the actual spacing, when the spindle moves to the preset position, the actual position of the positioning component can be determined according to the relative actual spacing. Compared with the fixed theoretical spacing in Embodiment 1, this method can reduce the interference of the positioning component's positional error, improve the positional accuracy of the first and second positioning parts of the positioning component adjusting the pneumatic clamp assembly, and relatively reduce the number of adjustments and checks, thus improving efficiency.

[0116] In the above embodiments one and two, as Figures 12 to 14 As shown, a method for calibrating the first positioning point of an air clamp assembly is specifically applied, including the following steps:

[0117] S10: Control the positioning component to move to a preset position. The spindle assembly moves, causing the positioning component to move, and the positioning component moves to the preset position, which is above the first positioning area.

[0118] S20: The first positioning part and the first locking part of the control pneumatic clamp assembly are opened, and the first positioning part surrounds and forms 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 member. At least two side walls of the first positioning part surround the pneumatic clamp assembly to form the first positioning area.

[0119] S30: Control the positioning element to descend into the first positioning area; under the drive of the drive part 31, the positioning element 32 descends downward along the third side into the first positioning area.

[0120] S40: Control the positioning element to move to the first positioning point within the first positioning area; within the first positioning area, the spindle assembly moves, causing the positioning element to move to the first positioning point. During the movement of the positioning element towards the first positioning point, the positioning element may abut against at least one side wall of the first positioning part. The movement of the positioning element drives the side wall of the first positioning part to move in the first and / or second direction, thereby causing the entire first positioning part to move relative to the worktable. This achieves fine-tuning of the first positioning part.

[0121] S50: Control the first positioning part to switch to the closed state to clamp the positioning element, and determine the position of the first positioning point of the pneumatic clamp assembly. During the process of controlling the first positioning part to switch from the open to the closed state, at least two sidewalls of the first positioning part move from the circumferential direction towards and abut against the positioning element until at least two sidewalls of the first positioning part completely abut against the outer circumferential sidewall of the positioning element. At this time, the center of the inscribed circle of the area enclosed by the at least two sidewalls of the first positioning part is determined as the first positioning point. Thus, the position of the first positioning point is determined by the positioning element.

[0122] After determining the position of the first positioning point, the first locking part is switched to the state of locking the position of the first positioning part of the air clamp assembly, and the position of the first positioning point is calibrated and recorded. Then, the first positioning part is opened, and the positioning member rises from the first area. The calibration of the first positioning point of the air clamp assembly is completed.

[0123] In the above embodiments one and two, as follows: Figure 12 , Figure 15 , Figure 16 As shown, a method for calibrating the second positioning point of an air clamp assembly is specifically applied, including the following steps:

[0124] S55: Control the positioning element to move to the preset position. The spindle assembly moves, causing the positioning element to move, and the positioning element moves to the preset position, which is above the second positioning area.

[0125] S65: The second positioning part and the second locking part of the control pneumatic clamp assembly are opened, and the second positioning part surrounds and forms 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 member. At least two sidewalls of the second positioning part surround the pneumatic clamp assembly to form the second positioning area.

[0126] S75: Control the positioning element to descend into the second positioning area; driven by the second guide mechanism 5, the positioning element 32 descends downward along the third side into the second positioning area.

[0127] S85: Control the positioning element to move to the second positioning point within the second positioning area; within the second positioning area, the spindle assembly moves, causing the positioning element to move to the second positioning point. During the movement of the positioning element towards the second positioning point, the positioning element may abut against at least one side wall of the second positioning part. The movement of the positioning element drives the side wall of the second positioning part to move in the first and / or second direction, thereby causing the entire second positioning part to move relative to the worktable. This achieves fine-tuning of the second positioning part.

[0128] S95: Control the second positioning part to switch to the closed state to clamp the positioning element, and determine the position of the second positioning point of the pneumatic clamp assembly. During the process of controlling the second positioning part to switch from the open to the closed state, at least two sidewalls of the second positioning part move from the circumferential direction toward the positioning element until at least two sidewalls of the second positioning part completely abut against the outer circumferential sidewall of the positioning element. At this time, the center of the inscribed circle of the area enclosed by the at least two sidewalls of the second positioning part is determined as the second positioning point. Thus, the position of the second positioning point is determined by the positioning element.

[0129] After determining the position of the second positioning point, the second locking unit is switched to the state of locking the position of the second positioning unit of the air clamp assembly, and the position of the second positioning point is calibrated and recorded. Then, the second positioning unit is opened, and the positioning member rises from the second area. The calibration of the second positioning point of the air clamp assembly is completed.

[0130] The above-mentioned method for calibrating the pneumatic clamp assembly can achieve the following: based on the positioning component of the spindle assembly, the position of the positioning part of the pneumatic clamp assembly can be automatically adjusted; based on the positioning point of the positioning part, the position of the pneumatic clamp assembly relative to the worktable can be determined; after calibrating the position of the pneumatic clamp assembly, the position of each circuit board can be accurately positioned, thereby improving the machining accuracy and machining quality.

[0131] In the above and below disclosures, when the perpendicularity of the spindle assembly is within a preset range, the spindle position is determined using the center coordinates of the spindle on the worktable. Specifically, the center coordinates of the spindle can be detected and determined by detecting the relative position of the tool or pin clamped at the bottom of the spindle with respect to the worktable, and a tool setter or tool inspection assembly can be used to detect the center coordinates. Simultaneously, when the actual center coordinates of the spindle are not within the preset range of the theoretical center coordinates, the worktable and the spindle assembly move relative to each other, changing the center position of all spindle assemblies in the second direction; a single spindle assembly slides along the first direction on the crossbeam, changing the center coordinates of the single spindle in the first direction, thereby adjusting the center coordinates of the spindle.

[0132] In the present disclosure, the positions of the spindle, positioning components, positioning parts, and positioning points are adjusted, or the center positions of the spindle, positioning components, positioning parts, and positioning points are fine-tuned. This adjustment or fine-tuning refers to making precise adjustments based on the deviation between the actual center position and the theoretical center position. The adjustment range is typically at the micrometer or millimeter level. Due to the high assembly and processing precision of circuit board processing equipment, the actual deviation that needs adjustment may be 20 micrometers, 10 micrometers, or even a few micrometers. Precise positioning and fine-tuning of the actual positions of each component can effectively improve processing accuracy.

[0133] The various disclosures of this disclosure have been described above. The foregoing description is exemplary and not exhaustive, nor is it limited to the disclosed disclosures. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described disclosures. The terminology used herein is chosen to best explain the principles, practical applications, or technological improvements in the market, or to enable others skilled in the art to understand the disclosures herein. The scope of this disclosure is defined by the appended claims.

Claims

1. An automatic adjustment device for an air clamp assembly, characterized by, Comprising: a first guide mechanism (2) for supporting a first positioning part (1), the first guide mechanism (2) having at least one degree of freedom of movement; and an adjusting mechanism (3) mounted on a spindle assembly of a circuit board processing device, the adjusting mechanism (3) comprising a driving part (31) and a positioning member (32), the driving part (31) being used to control the positioning member (32) to move to a clamping groove of the first positioning part (1) at a predetermined position, so as to force the first guide mechanism (2) to move and position in at least one degree of freedom of movement.

2. An automatic adjustment device for a gas clamp assembly according to claim 1, characterized in that: The first guide mechanism (2) comprises a first guide rail assembly (21) for constructing a first direction degree of freedom, and a second guide rail assembly (22) for constructing a second direction degree of freedom, the second guide rail assembly (22) being mounted on a moving part of the first guide mechanism (2).

3. An automatic adjustment device for a gas clamp assembly according to claim 2, wherein: First locking parts (23) are further arranged on the moving parts of the first guide rail assembly (21) and the second guide rail assembly (22), and the two first locking parts (23) restrict the degree of freedom of movement of the first guide mechanism (2).

4. An automatic adjustment device for a gas clamp assembly according to claim 1, wherein: The adjusting mechanism (3) further comprises a guide part (33), the guide part (33) comprising a guide part and a sliding part, the guide part being used to restrict the sliding direction of the sliding part; The driving part (31) is used to drive the sliding part to slide, and the positioning member (32) is mounted below the sliding part.

5. An automatic adjustment device for a gas clamp assembly according to claim 4, wherein: A mounting bracket (34) for connecting with the spindle assembly is further included, and the driving part (31) and the guide part are fixed on the mounting bracket (34).

6. An automatic adjustment device for a gas clamp assembly according to claim 4, wherein: A fixed seat (35) is fixedly mounted below the sliding part, and a first needle seat (36) and a second needle seat (37) are sequentially fixed on the side surface of the fixed seat (35), and the positioning member (32) is clamped between the first needle seat (36) and the second needle seat (37).

7. An automatic adjustment device for a gas clamp assembly according to any one of claims 1-6, characterized in that: A second guide mechanism (5) for supporting a second positioning part (4) is further included, the second positioning part (4) coinciding with the center line of the first positioning part (1); wherein the second guide mechanism (5) has at least one degree of freedom of movement.

8. An automatic adjustment device for a gas clamp assembly according to claim 7, wherein: The second guide mechanism (5) comprises a third guide rail assembly (51) for constructing a first direction degree of freedom, and the second positioning part (4) is fixed on the moving part of the third guide rail assembly (51).

9. An automatic adjustment device for a gas clamp assembly according to claim 8, wherein: A second locking part (52) is arranged on the moving part of the third guide rail assembly (51), and the second locking part (52) restricts the degree of freedom of movement of the second guide mechanism (5).

10. An automatic adjustment device for a gas clamp assembly according to claim 7, wherein: A detection assembly (6) is further included, and the detection assembly (6) is used to detect the relative position between the positioning member (32) and a spindle chuck of the spindle assembly, so as to eliminate the position error of the positioning member (32).

11. A circuit board processing apparatus, characterized by comprising: Comprising: a spindle assembly, the spindle assembly comprising a spindle and a positioning member, a pneumatic chuck assembly, the pneumatic chuck assembly comprising a first positioning region of a first positioning part, the first positioning region 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 part moves toward the first positioning point to determine the position of the first positioning part.

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