Main shaft assembly and circuit board processing equipment

Abstract

The utility model provides a main shaft assembly which is suitable for circuit board processing equipment and comprises a first bottom plate, a main shaft clamp, a first main shaft and an adjusting part, and the first main shaft is arranged in an annular interval defined by the main shaft clamp; the main shaft clamp is slidably connected to the first bottom plate through the adjusting part. The adjusting part drives the first spindle and the spindle clamp to move along the first bottom plate. The utility model further provides circuit board processing equipment. According to the main shaft assembly and the circuit board machining equipment, the machining precision can be improved, and the main shaft assembly and the circuit board machining equipment can be suitable for machining various kinds of circuit boards.

Description

Technical Field

[0001] The present disclosure relates to the technical field of circuit board processing, and more precisely, to a spindle assembly and a circuit board processing device. Background Art

[0002] Currently, the circuit board processing device has achieved dual-axis synchronous processing. To achieve multi-axis processing on the same workbench, it is necessary to adjust the center positions of multiple spindles in the X and Y directions on the processing table. In addition, currently, multi-axis processing can only achieve synchronous processing of symmetric graphics in the layout diagram of the PCB board, and cannot achieve asymmetric processing of asymmetric graphics. How to adjust the position of the spindle to achieve multi-axis asymmetric processing has become a technical problem that must be solved to improve the efficiency of new circuit board processing devices. Summary of the Utility Model

[0003] The present disclosure provides a circuit board processing control method and a circuit board processing device to solve the problems existing in the prior art.

[0004] According to a first aspect of the present disclosure, there is provided a spindle assembly applicable to a circuit board processing device, including: a first base plate, a spindle clamp, a first spindle, and an adjustment part. The first spindle is disposed within an annular interval surrounded by the spindle clamp; the spindle clamp is slidably connected to the first base plate through the adjustment part; the adjustment part drives the first spindle and the spindle clamp to move along the first base plate.

[0005] In some optional embodiments of the present disclosure, the adjustment part includes a driving member and a connecting member. The spindle clamp is slidably connected to the first base plate through the connecting member; the driving member drives the spindle clamp and the first spindle to slide on the first base plate along a second direction.

[0006] In some optional embodiments of the present disclosure, the connecting member includes a guide rail and a slider. A slider is provided on the spindle clamp, and a guide rail is provided on the first base plate. The driving member drives the slider to drive the spindle clamp to move on the guide rail.

[0007] In some optional embodiments of the present disclosure, the spindle assembly further includes a locking member. The locking member penetrates the first base plate and abuts against the spindle clamp. The locking member is configured to switch the spindle clamp and the first base plate between a locked state and a released state.

[0008] In some optional embodiments of the present disclosure, the locking member includes a clamping member and a convex block. The clamping member is provided on the first base plate, and the convex block is provided on the spindle clamp. In the locked state, the clamping member circumferentially clamps the convex block.

[0009] In some alternative embodiments of the present disclosure, one adjusting portion is provided on each side of the main shaft clamp, and the two adjusting portions move synchronously and are symmetric about the first main shaft axis.

[0010] According to a second aspect of the present disclosure, there is provided a circuit board processing device, including: a cross beam and a workbench; a first main shaft unit and a second main shaft unit arranged along a first direction are slidably connected to the cross beam, and the first main shaft unit and the second main shaft unit are configured to process the same circuit board carried on the workbench along a third direction; the first main shaft unit includes: a first base plate, a main shaft clamp, a first main shaft, and an adjusting portion, and the first main shaft is disposed in an annular interval surrounded by the main shaft clamp; the main shaft clamp is slidably connected to the first base plate through the adjusting portion; in a second direction, the adjusting portion drives the first main shaft and the main shaft clamp to move along the first base plate; the first direction, the second direction, and the third direction are perpendicular to each other.

[0011] In some alternative embodiments of the present disclosure, the second main shaft unit includes a first base plate, a main shaft clamp, a second main shaft, and an adjusting portion, and the second main shaft is disposed in an annular interval surrounded by the main shaft clamp; the main shaft clamp is slidably connected to the first base plate through the adjusting portion; the adjusting portion drives the main shaft clamp and the second main shaft to move along the second direction on the first base plate.

[0012] In some alternative embodiments of the present disclosure, the adjusting portion includes a driving member and a connecting member, and the main shaft clamp is slidably connected to the first base plate through the connecting member; the connecting member includes a slide rail and a slider.

[0013] In some alternative embodiments of the present disclosure, the movement stroke of the first main shaft and the second main shaft in the second direction is less than the safety distance between the first main shaft and the second main shaft.

[0014] The above-mentioned main shaft assembly and circuit board processing device of the present disclosure have the following technical effects: (1) By adjusting the position of the first main shaft unit along the first direction and adjusting the position of the first main shaft along the second direction, the center position of the first main shaft can be adjusted, and the concentricity of the first main shaft and the second main shaft can be adjusted. (2) The processing range of the first main shaft is expanded, and the first main shaft unit and the second main shaft unit can independently process the circuit board at the same processing position. (3) The first main shaft unit and the second main shaft unit can flexibly process the same circuit board with an asymmetric layout, expanding the application range of the circuit board processing device. (4) By setting a limit processing interval, circuit boards with symmetric and asymmetric layouts can be processed, expanding the application scenarios of dual-spindle processing. While improving the processing accuracy and efficiency, the circuit board processing device is applicable to more types of circuit board processing.

[0015] 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. Description of the Drawings

[0016] 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.

[0017] Figure 1 is a partial structural schematic diagram of a circuit board processing device provided by an embodiment of the present disclosure;

[0018] Figure 2 is a partial structural schematic diagram of a circuit board processing device provided by an embodiment of the present disclosure;

[0019] Figure 3 is a partial structural schematic diagram of a first spindle unit provided by an embodiment of the present disclosure;

[0020] Figure 4 is a partial structural schematic diagram of a first spindle unit provided by an embodiment of the present disclosure;

[0021] Figure 5 is a partial structural schematic diagram of a first spindle unit provided by an embodiment of the present disclosure;

[0022] Figure 6 is a partial structural schematic diagram of a first spindle unit provided by an embodiment of the present disclosure;

[0023] Figure 7 is a partial structural schematic diagram of a layout diagram of a circuit board provided by an embodiment of the present disclosure;

[0024] Figure 8 is a partial structural schematic diagram of a layout diagram of a circuit board provided by an embodiment of the present disclosure.

[0025] Figures 1 to 8 The one-to-one correspondence between the names of the components and the reference numerals in is as follows: 10, processing part; 20, workbench; 30, cross beam; 40, base; 11, first spindle unit; 12, second spindle unit; 13, second base plate; 14, spindle part; 110, first spindle assembly; 120, second spindle assembly; 1200, second spindle; 1101, first base plate; 1102, spindle clamp; 1100, first spindle; 112, adjustment part; 1121, driving part; 1122, connecting part; 113, locking part; 1131, clamping part; 1132, convex block; 21, processing position; 22, circuit board; 23, tool; 24, layout diagram; 25, sub-circuit board; 26, extreme processing range. Detailed Embodiments

[0026] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that: Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present disclosure. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way a limitation on 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.

[0027] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings. The following describes the specific embodiments of the present disclosure in conjunction with the 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", "third", "fourth", etc. are only used for mutual distinction, rather than indicating importance, order, and the premise of mutual existence, etc. In this document, "equal", "same", "aligned", "vertical", "horizontal", "above", "consistent", "synchronous", "simultaneous", "sequentially", etc. are not strict mathematical and / or geometric limitations, and also include errors that can be understood by those skilled in the art and are allowed in manufacturing or use, etc.

[0028] The circuit board processing equipment in the present disclosure includes: a base, a cross beam, a spindle unit, a workbench, etc. The workbench is arranged on the base and moves along the second direction. The cross beam is erected above the workbench, and at least one spindle unit that moves along the first direction is slidably connected to the cross beam; the spindle unit moves along the third direction to process the circuit board carried on the workbench. The first direction, the second direction, and the third direction are perpendicular to each other. In the context embodiments of the present disclosure, the circuit board processing equipment can be implemented as a drilling equipment, a shaping equipment, a routing equipment, a drill-rout integrated equipment, etc., which are not limited herein. In the context embodiments of the present disclosure, the number of spindle units of the circuit board processing equipment can be one, two, three, six, ten, twelve, etc., and no limitation is made herein.

[0029] To achieve double-spindle machining of a circuit board, the present disclosure provides a spindle assembly applicable to circuit board processing equipment, including: a first base plate, a spindle clamp, a first spindle, and an adjustment part. The first spindle is disposed within the annular interval defined by the spindle clamp; the spindle clamp is slidably connected to the first base plate through the adjustment part; the adjustment part drives the first spindle and the spindle clamp to move along the first base plate. Through the adjustment part, this spindle assembly enables the first spindle to slide on the first base plate in the second direction, achieving the concentricity adjustment of the double spindles. Additionally, the machining range of the first spindle is extended, and an asymmetric circuit board can be machined.

[0030] To achieve double-spindle machining of a circuit board, the present disclosure provides a circuit board processing equipment, including: a cross beam and a workbench; a first spindle unit and a second spindle unit arranged in the first direction are slidably connected to the cross beam, and the first spindle unit and the second spindle unit are used for machining the same circuit board carried on the workbench along the third direction; the first spindle unit includes: a first base plate, a spindle clamp, a first spindle, and an adjustment part, and the first spindle is disposed within the annular interval defined by the spindle clamp; the spindle clamp is slidably connected to the first base plate through the adjustment part; in the second direction, the adjustment part drives the first spindle and the spindle clamp to move along the first base plate; the first direction, the second direction, and the third direction are perpendicular to each other.

[0031] To achieve double-spindle machining of a circuit board, the circuit board processing equipment of the present disclosure includes: a cross beam and a workbench; a first spindle unit and a second spindle unit arranged in the first direction are slidably connected to the cross beam, and the first spindle unit and the second spindle unit are used for machining the same circuit board; the first spindle unit includes: a first base plate, a spindle clamp, a first spindle, and an adjustment part, and the first spindle is disposed within the annular interval defined by the spindle clamp; the spindle clamp is slidably connected to the first base plate through the adjustment part; the adjustment part drives the first spindle and the spindle clamp to move along the second direction on the first base plate; the first direction is perpendicular to the second direction. In this circuit board processing equipment, by adjusting the position of the first spindle unit along the first direction and adjusting the position of the first spindle along the second direction, the central position of the first spindle can be adjusted, achieving the concentricity adjustment of the first spindle and the second spindle. At the same time, the machining range of the first spindle is extended, and the first spindle unit and the second spindle unit can respectively and independently machine the circuit board at the same machining position. Finally, the first spindle unit and the second spindle unit can flexibly machine the same circuit board with an asymmetric layout, expanding the application range of the circuit board processing equipment.

[0032] To achieve double-spindle processing of a circuit board, the present disclosure provides a circuit board processing control method, which is applied to a circuit board processing device. The control method includes: obtaining a layout diagram of the circuit board to be processed; obtaining the safety distance between the first spindle unit and the second spindle unit for processing the circuit board to be processed in the first direction; the first spindle unit includes an adjustment part and a first spindle, and the adjustment part drives the first spindle to move within the stroke range in the second direction; the first direction is perpendicular to the second direction; according to the safety distance and the stroke range, determine the limit processing interval on the layout diagram, and the first spindle unit and the second spindle unit process the circuit board to be processed in sequence according to the limit processing interval. This circuit board processing control method sets a virtual limit processing interval within the layout diagram through the safety distance and the stroke range, and can perform double-axis processing on the same circuit board with symmetric or asymmetric layouts, expanding the application scenarios of double-spindle processing. While improving the processing accuracy and efficiency, the circuit board processing device is applicable to more types of circuit board processing.

[0033] In some embodiments of the present disclosure, the limit processing interval is a rectangle. The side length of the rectangle in the first direction is determined according to the safety distance, and the side length of the rectangle in the second direction is determined according to the stroke range. Each circuit board to be processed has a corresponding structure layout diagram, which includes the sub-circuit boards and point coordinates of the circuit board to be processed, and the point coordinates are theoretical coordinates. The same circuit boards in the same batch share the same layout diagram. When processing different circuit boards, different application programs are loaded in the circuit board processing device, and the application programs include the layout diagram. The circuit board to be processed and the layout diagram are both rectangles, and they have the same length, width, and area. Based on the zero point of the layout diagram of the circuit board to be processed, set the limit processing interval on the layout diagram. The limit processing interval is also a rectangle, but the area of the limit processing interval is much smaller than the area of the layout diagram. The limit processing interval and the layout diagram share the zero point. The side length of the long side of the limit processing interval in the first direction is determined according to the safety distance between the first spindle unit and the second spindle unit, and the side length of the short side of the limit processing interval in the second direction is determined according to the stroke of the first spindle in the second direction.

[0034] In some preferred embodiments, the extreme machining interval is rectangular, the side length of the rectangle in the first direction is greater than or equal to the minimum safety distance; the side length of the rectangle in the second direction is less than or equal to the maximum stroke range. In the actual application process, the side length of the extreme machining interval in the first direction is less than or equal to the side length of the layout drawing in the first direction, and the side length of the extreme machining interval in the second direction is less than or equal to the side length of a sub-circuit board in the second direction. That is to say, the long side of the rectangle is related to the safety distance, the short side of the rectangle is related to the stroke range, and the short side of the rectangle is less than the long side; in the upper and lower embodiments of the present disclosure, the movement stroke of the first main shaft and the second main shaft in the second direction is less than the safety distance between the first main shaft and the second main shaft. Setting the extreme machining interval according to this specification can, on the one hand, ensure safe machining and avoid collisions during the machining process of the first main shaft unit and the second main shaft unit. On the other hand, taking the second main shaft as a reference, the stroke of the first main shaft in the second direction can be freely adjusted, and points in a larger range in the second direction of the layout drawing can be machined, thereby expanding the machining range of the first main shaft and improving the machining efficiency.

[0035] In some preferred embodiments of the present disclosure, on the layout drawing, at least two extreme machining intervals are arranged in sequence along the second direction, and the first main shaft unit and the second main shaft unit jointly machine each extreme machining interval. In the first direction, the extreme machining interval fills the entire layout drawing, and in the second direction, multiple extreme machining intervals are arranged in sequence. That is to say, the layout drawing is divided into multiple rectangular areas arranged along the second direction, and each rectangular area is an extreme machining interval. When editing the machining sequence on the layout drawing, the circuit board is machined in sequence according to the extreme machining intervals. Here, "in sequence" means that on the entire layout drawing, the first main shaft unit and the second main shaft unit jointly machine according to the order of each extreme machining interval, and inside each extreme machining interval, the first main shaft unit and the second main shaft unit separately machine according to a predetermined order.

[0036] In some preferred embodiments of the present disclosure, before the adjustment unit drives the first main shaft to move within the stroke range in the second direction, it further includes correcting the center positions of the first main shaft unit and the second main shaft unit according to the layout drawing. Before the adjustment unit drives the first main shaft to move, it is necessary to first determine the center positions of the first main shaft unit and the second main shaft unit. The correction of the center position of the main shaft unit can be implemented by a detection unit such as a tool setting instrument or a tool inspection component, and after multiple corrections, the actual center position of the main shaft unit is corrected within the error range of the theoretical center position.

[0037] In the context of the embodiments of the present disclosure, the central positions of the first spindle unit and the second spindle unit are represented by the central coordinates of the spindle. When the perpendicularity of the spindle is within a preset range, the central coordinates of the spindle are used to determine the central position of the spindle. Specifically, the central coordinates of the spindle can be detected and determined by detecting the tip of the cutting tool clamped at the bottom end of the spindle, and can be detected by detection tools such as a tool setter or a tool inspection component. At the same time, when the central coordinates of the spindle are not within the preset range, the workbench and the spindle unit move relative to each other to change the central coordinates of the spindle in the second direction; the spindle unit slides along the crossbeam to change the central coordinates of the spindle in the first direction; thus, the central coordinates of the spindle are adjusted. During double-spindle machining, the central positions of the first spindle unit and the second spindle unit are respectively corrected to improve the machining accuracy of the two spindles. Specifically, first, the central position of the second spindle unit is corrected. By moving the position of the second spindle unit in the first direction and moving the position of the workbench in the second direction, the deviation between the actual central coordinates and the theoretical central coordinates of the second spindle unit is within the preset range. Then, the central position of the first spindle unit is corrected. By moving the position of the first spindle unit in the first direction; in the second direction, with the central coordinates of the second spindle as the reference, the position of the first spindle is adjusted by the adjustment part, so that the deviation between the actual central coordinate position and the theoretical central coordinates of the first spindle unit is within the preset range. In this way, correcting the central positions of the first spindle unit and the second spindle unit can not only achieve the concentricity adjustment of the first spindle unit and the second spindle unit, but also improve the machining accuracy.

[0038] In the context of the embodiments of the present disclosure, at least two spindle units arranged along the first direction are slidably connected to the crossbeam: a first spindle unit and a second spindle unit; each spindle unit includes a spindle part and a second base plate, the spindle part is fixedly installed on the second base plate, and the second base plate is slidably connected to the crossbeam through a guide rail and a slider. Each spindle part includes a spindle assembly and a driving part, and a slide rail extending along the third direction is provided on the second base plate, and the driving part drives the spindle assembly to move along the third direction on the second base plate. Each spindle assembly includes: a first base plate, a spindle and a spindle clamp, the spindle is arranged in the annular interval surrounded by the spindle clamp, and the spindle clamp is installed on the first base plate. A cutting tool is clamped at the bottom end of each spindle, and the spindle holds the cutting tool and moves in the third direction to machine the printed circuit board to be processed carried on the workbench.

[0039] In some preferred embodiments of the present disclosure, the first spindle unit includes a first base plate and a spindle clamp. The first spindle unit further includes an adjustment portion. The first spindle is disposed within the annular interval defined by the spindle clamp, and the spindle clamp is slidably connected to the first base plate through the adjustment portion. By providing the adjustment portion between the spindle clamp and the first base plate, a sliding connection is formed between the spindle clamp and the first base plate, thereby enabling the position of the spindle clamp relative to the first base plate to be changed. Since the first spindle is fixedly installed within the annular interval defined by the spindle clamp, changing the position of the spindle clamp relative to the first base plate also simultaneously changes the position of the first spindle relative to the first base plate. Therefore, the movement of the first spindle and the spindle clamp along the second direction on the first base plate is achieved. Precisely because the first spindle can move in the second direction, during the machining process, the first spindle unit and the second spindle unit share a workbench to machine the same circuit board. Taking the second-direction coordinates of the second spindle as a reference, the position of the first spindle in the second direction is adjusted to achieve independent and free machining of the first spindle. By providing the adjustment portion between the first base plate and the spindle clamp, on the one hand, the machining range of the first spindle in the second direction is extended, enabling independent machining of the first spindle and the second spindle; on the other hand, concentricity adjustment of the first spindle and the second spindle can also be achieved, improving machining accuracy.

[0040] In some preferred embodiments of the present disclosure, the adjustment portion includes a driving member and a connecting member. The spindle clamp is slidably connected to the first base plate through the connecting member, and the driving member drives the spindle clamp and the first spindle to slide along the second direction on the first base plate. In some preferred embodiments of the present disclosure, the driving member includes a linear motor, and the connecting member includes a guide rail and a slider. One of the spindle clamp and the first base plate is provided with the guide rail, and the other is provided with the slider. For example, the guide rail is installed on the first base plate along the second direction, and the slider is installed on the spindle clamp. Reverse installation is also possible. The linear motor drives the slider to move on the guide rail, thereby driving the spindle clamp and the first spindle to slide along the second direction on the first base plate. Since a grating ruler is provided between the two guide rails on the first base plate, the movement of the linear motor is precisely controllable. The guide rail has a predetermined length, that is to say, the spindle clamp has a predetermined stroke range of movement along the second direction, and this stroke range is directly related to the movement stroke of the first spindle in the second direction. At the same time, through this stroke range, the side length of the second direction of the limit machining interval is determined.

[0041] In some embodiments of the present disclosure, the first spindle unit further includes a locking member. The locking member connects the first base plate and the spindle clamp, and is configured to switch the spindle clamp and the first base plate between a locked state and a released state. The locking member includes a clamping member and a convex block. The clamping member is disposed on the first base plate, and the convex block is disposed on the spindle clamp. At least a part of the clamping member penetrates through the first base plate and abuts against the convex block on the spindle clamp. When the locking member is in the locked state, the clamping member is controlled to circumferentially clamp the convex block, and the first base plate and the spindle clamp are in the locked state, locking the spindle clamp at a predetermined position on the guide rail of the first base plate, and the first spindle stays at a predetermined coordinate position and cannot move in the second direction. When the locking member is in the released state, the clamping member is controlled to unlock the convex block, and the position between the first base plate and the spindle clamp is adjustable. The driving member can drive the spindle clamp and the first spindle to slide on the guide rail in the second direction, realizing the position adjustment of the first spindle in the second direction.

[0042] In some embodiments of the present disclosure, the clamping member and the first spindle are disposed on both sides of the first base plate. At least a part of the clamping member passes through the back surface of the first base plate. The clamping member includes a jaw, and the jaw circumferentially abuts against the convex block of the first spindle, so as to lock or release the spindle clamp, realizing the precise movement of the first spindle in the second direction. The locking member locks or releases the first spindle and the spindle clamp stably and reliably, with simple and convenient maintenance and low cost. In a preferred embodiment of the present disclosure, the movement of the clamping member can be implemented in various ways such as pneumatic, motor, electromagnetic induction, etc., without any limitation here as long as precise movement control can be satisfied.

[0043] In some embodiments of the present disclosure, the second spindle unit includes an adjustment portion and a second spindle, and the adjustment portion drives the second spindle to move in the second direction. In some preferred embodiments of the present disclosure, similar to the first spindle unit, the second spindle unit is also provided with an adjustment portion. The adjustment portion of the first spindle unit drives the first spindle to move in the second direction, and the adjustment portion of the second spindle unit drives the second spindle to move in the second direction. The adjustment portions of the first spindle unit and the second spindle unit have the same structure and will not be described in detail herein. That is to say, the second spindle unit includes: a first base plate, a spindle clamp, a second spindle, and an adjustment portion. The second spindle is disposed within the annular interval surrounded by the spindle clamp; the spindle clamp is slidably connected to the first base plate through the adjustment portion; the adjustment portion drives the spindle clamp and the second spindle to slide on the first base plate along the second direction. The adjustment portion includes a driving member and a connecting member, and the spindle clamp is slidably connected to the first base plate through the connecting member; the connecting member includes a slide rail and a slider. The first spindle and the second spindle are independently processed within the limit processing interval with the zero point of the layout drawing as a reference, without being restricted by each other. This type of circuit board processing equipment can not only achieve the concentricity adjustment of the first main spindle and the second spindle, improve the accuracy of double-spindle processing, and improve the efficiency of circuit board processing; but also expand the processing range of the first spindle and the second spindle, can adapt to the processing of symmetric and asymmetric circuit boards, and improve the diversity of circuit board processing equipment.

[0044] In the above and below embodiments of the present disclosure, symmetry includes not only axial symmetry but also mirror symmetry; in the layout drawing of the circuit board, most of them are mirror stacking structures, but there are some layout drawings that are neither mirror symmetric nor axially symmetric. For the processing of such circuit boards, by using double-spindle independent processing, while ensuring the processing accuracy, the processing efficiency is improved.

[0045] Embodiment 1

[0046] In this embodiment, taking a twelve-axis drilling device for circuit board processing equipment and two spindle units processing the circuit board at the same station as an example, the structure of the circuit board processing equipment and the processing control method applied to the circuit board processing equipment are described in detail.

[0047] In the circuit board processing equipment in this embodiment, as Figure 1 、 Figure 2 shown, it includes: a base 40, a cross beam 30, a processing portion 10, and a workbench 20; the workbench 20 is disposed on the base 40 and moves along the second direction, and the cross beam 30 is erected above the workbench 20, and 6 processing portions 10 arranged and moving along the first direction are slidably connected to the cross beam 30. There are 6 processing positions 21 provided on the workbench 20, and each processing position 21 carries a circuit board 22. Each processing portion 10 corresponds to each processing position 21 one by one. As Figure 1 、 Figure 2As shown, each processing unit 10 includes a first spindle unit 11 and a second spindle unit 12. The first spindle unit 11 and the second spindle unit 12 jointly process a circuit board 22 at a corresponding processing position 21 in the third direction. In this embodiment, 12 spindle units of 6 processing units move on the crossbeam 30 in the first direction, 6 circuit boards are carried on the workbench 20 and move integrally in the second direction, and each spindle unit moves in the third direction to process the corresponding circuit board on the workbench. In this embodiment, the first direction, the second direction, and the third direction are perpendicular to each other.

[0048] As Figure 2 , Figure 3 shown, at least two spindle units arranged in the first direction are slidably connected to the crossbeam 30: the first spindle unit 11 and the second spindle unit 12. The first spindle unit 11 and the second spindle unit 12 are used to process the same circuit board 22 carried on the workbench 20 in the third direction. The first spindle unit 11 includes a spindle portion 14 and a second base plate 13. The spindle portion 14 is fixedly installed on the second base plate 13. The second base plate 13 is slidably connected to the crossbeam 30 through a guide rail and a slider, driving the spindle portion 14 to move on the crossbeam 30 in the first direction. The spindle portion 14 includes a first spindle assembly 110 and a driving portion. A slide rail extending in the third direction is provided on the second base plate 13, and the driving portion drives the first spindle assembly 110 to move in the third direction on the second base plate 13. As Figures 3 to 6 shown, the first spindle assembly 110 includes: a first base plate 1101, a first spindle 1100, and a spindle chuck 1102. The first spindle 1100 is disposed in the annular interval surrounded by the spindle chuck 1102, and the spindle chuck 1102 is installed on the first base plate 1101. A tool 23 is clamped at the bottom end of the first spindle 1100, and the first spindle 1100 holds the tool 23 and moves in the third direction to process the circuit board 22 to be processed carried on the workbench 20.

[0049] As Figure 2, the second main shaft unit 12 shown includes: a main shaft portion and a second bottom plate. The main shaft portion is fixedly installed on the second bottom plate, and the second bottom plate is slidably connected to the cross beam 30 through a guide rail and a slider, driving the main shaft portion to move in the first direction. The main shaft portion includes a second main shaft assembly 120 and a driving portion. A slide rail extending in the third direction is provided on the second bottom plate, and the driving portion drives the second main shaft assembly 120 to move on the second bottom plate in the third direction. The second main shaft assembly 120 includes: a first bottom plate, a second main shaft 1200, and a main shaft clamp. The second main shaft 1200 is disposed within the annular interval surrounded by the main shaft clamp, and the main shaft clamp is installed on the first bottom plate. A tool 23 is clamped at the bottom end of the second main shaft 1200, and the second main shaft 1200 holds the tool 23 to move in the third direction to machine the circuit board 22 to be processed carried on the workbench 20. The second main shaft unit 12 has basically the same structure as the first main shaft unit 11, except that the first main shaft unit 11 is provided with an adjustment portion 112, and the second main shaft unit 12 is not provided with an adjustment portion.

[0050] Specifically, in this embodiment, as Figure 3 shown, the first main shaft unit 11 includes: a first bottom plate 1101, a main shaft clamp 1102, a first main shaft 1100, and an adjustment portion 112. The first main shaft 1100 is disposed within the annular interval surrounded by the main shaft clamp 1102; the main shaft clamp 1102 is slidably connected to the first bottom plate 1101 through the adjustment portion 112; the adjustment portion 112 drives the first main shaft 1100 to move in the second direction; the first direction is perpendicular to the second direction. In this embodiment, the first main shaft 1100 is fixedly installed within the annular interval surrounded by the main shaft clamp 1102, and the first main shaft 1100 and the main shaft clamp 1102 move in the second direction simultaneously, or stop simultaneously. The main shaft clamp 1102 is a tubular structure, and the annular interval inside is formed by the surrounding of the tubular structure. The first main shaft 1100 penetrates through the annular interval inside the tubular structure. The first bottom plate 1101 extends in the third direction, and at least a part of the first bottom plate is arc-shaped, semi-wrapping the main shaft clamp 1102 from the circumferential direction.

[0051] As Figure 4As shown in the figure, the adjustment part 112 includes a driving part 1121 and a connecting part 1122. The spindle clamp 1102 is slidably connected to the first base plate 1101 through the connecting part 1122. The driving part 1121 drives the spindle clamp 1102 and the first spindle 1100 to slide on the first base plate 1101 in the second direction. In this embodiment, the driving part 1121 includes a linear motor, and the connecting part 1122 includes a guide rail and a slider. The spindle clamp 1102 is equipped with a slider, and the first base plate 1101 is equipped with a guide rail. The linear motor drives the slider to move on the slide rail, thereby driving the spindle clamp 1102 to slide on the first base plate 1101 in the second direction. At the same time, a grating ruler is arranged on the side of the guide rail on the first base plate 1101, which can accurately control the movement position and accuracy of the linear motor and the slider. The guide rail has a predetermined length, that is to say, the spindle clamp 1102 has a predetermined stroke range when moving in the second direction. This stroke range is directly related to the movement stroke of the first spindle in the second direction. At the same time, through this stroke range, the side length of the second direction of the limit machining area is determined.

[0052] As Figure 3 , Figure 4 , Figure 5 As shown in the figure, the first spindle unit includes two adjustment parts 112. One adjustment part 112 is arranged on each of the left and right sides of the first spindle 1100 in the first direction. The two adjustment parts 112 stably and reliably slidably connect the first spindle 1100 and the spindle clamp 1102 to the first base plate 1101. The two adjustment parts 112 have the same structure and will not be described in detail here. At the same time, the two adjustment parts 112 move synchronously, and their respective driving parts drive the first spindle 1100 and the spindle clamp 1102 to move in the second direction at the same time. It should be noted here that the two adjustment parts 112 are axisymmetric about the first spindle 1100. Here, the symmetry means axisymmetric about the central axis of the third direction of the first spindle 1100, and their structures and positions are both symmetric. The spindle clamps 1102 of the two adjustment parts 112 are both equipped with sliders, and the first base plate 1101 is both equipped with slide rails. The sliders and the slide rails are also symmetrically arranged. The two symmetric adjustment parts ensure the stability and balance of their synchronous movement, reduce movement errors and interference, and thus improve the machining accuracy.

[0053] As Figure 3 , Figure 4 , Figure 5As shown, the first main shaft unit 11 further includes a locking member 113. The locking member 113 connects the first base plate 1101 and the spindle chuck 1102, and is configured to switch the spindle chuck 1102 and the first base plate 1101 between a locked state and a released state. The locking member includes a clamping member 1131 and a convex block 1132. The clamping member 1132 is provided on the first base plate 1101, and the convex block 1132 is provided on the spindle chuck 1102. At least a part of the clamping member 1131 penetrates through the first base plate 1101 and abuts against the convex block 1132 on the spindle chuck 1102. When the locking member 113 is in the locked state, the clamping member 1131 is controlled to circumferentially clamp the convex block 1132 to lock the convex block 1132. A locked state exists between the first base plate 1101 and the spindle chuck 1102, the spindle chuck 1102 is locked at a predetermined position on the guide rail of the first base plate 1101, the first main shaft 1100 stays at a predetermined coordinate position, machining of a certain point is achieved, and it cannot move in the second direction until switching to the next point. When the locking member is in the released state, the clamping member 1131 is controlled to unlock the convex block 1132, the position between the first base plate 1101 and the spindle chuck 1102 is adjustable, and the driving member can drive the spindle chuck 1102 to slide along the second direction on the guide rail, realizing the position adjustment and change of the first main shaft 1100 in the second direction.

[0054] In this embodiment, the clamping member 1131 and the spindle chuck 1102 are arranged on both sides of the first base plate 1101. At least a part of the clamping member 1131 passes through the back surface of the first base plate 1101 and extends into the area between the first base plate 1101 and the spindle chuck 1102. Claws are provided at the tip of at least a part of the clamping member 1131. The claws and the convex block 1132 are arranged in the area between the first base plate 1101 and the spindle chuck 1102. The claws circumferentially clamp the convex block 1132 of the first main shaft, so as to lock or release the spindle chuck and the first main shaft, and realize the precise movement of the first main shaft in the second direction. The locking member stably and reliably locks or releases the first main shaft 1100 and the spindle chuck 1102, and is simple and convenient to maintain with low cost. In the embodiment, the movement of the clamping member 1131 can be implemented in various ways such as pneumatic, motor, electromagnetic induction, etc., and no limitation is made here as long as precise movement control can be satisfied.

[0055] In this embodiment, as Figure 2 、 Figure 3As shown, the first spindle unit 11 and the second spindle unit 12 are used to process the same circuit board 22 on the workbench. The first spindle unit 11 and the second spindle unit 12 slide along the first direction on the crossbeam 30. In the first direction, a safety distance is set between the first spindle unit 11 and the second spindle unit 12. This safety distance can prevent the first spindle unit 11 and the second spindle unit 12 from colliding when sliding on the crossbeam 30. In this embodiment, the safety distance refers to the minimum distance between the central axes of the first spindle unit 11 and the second spindle unit 12 in the first direction, marked as the value P. At this safety distance, the adjacent sides of the first spindle unit 11 and the second spindle unit 12 are infinitely close without mechanical collision. In the circuit board processing equipment, after assembling, calibrating, and detecting the spindle unit, the safety distance can be set according to the positions of the first spindle unit 11 and the second spindle unit 12. The data information of this safety distance is preset in the processing parameters of the circuit board processing equipment.

[0056] In this embodiment, the adjustment unit 112 drives the first spindle 1100 to move in the second direction. Specifically, the first spindle 1100 and the spindle clamp 1102 move along the second direction on the guide rail of the connecting member 1122. This movement has a predetermined stroke range, which is related to the structures of the spindle clamp 1102 and the first base plate 1101. At the same time, what directly affects the stroke range is the length of the guide rail of the connecting member 1122. That is to say, the first spindle 1100 has the largest stroke range when moving along the second direction on the guide rail of the connecting member 1122, marked as the value Q.

[0057] In this embodiment, as Figure 7 shown, on the layout drawing 24 of the circuit board to be processed, a rectangular processing area is constructed according to the values of the safety distance P and the stroke range Q. The side length of this rectangular processing area in the first direction is greater than or equal to the safety distance P, and the side length in the second direction is less than or equal to the stroke range Q. On the layout drawing 24, the side length of the rectangle of the extreme processing interval 26 in the first direction is greater than or equal to the safety distance P; the side length of the rectangle of the extreme processing interval in the second direction is less than or equal to the stroke range Q. To improve the processing efficiency, a reasonable rectangular structure of the extreme processing interval 26 is delimited. The side length of the extreme processing interval 26 in the first direction is M (M is greater than or equal to P), and the side length in the second direction is N (N is less than or equal to Q); a reasonable extreme processing interval 26 is constructed with M and N. Within the extreme processing interval 26, the first spindle 1100 has a larger processing range, especially for some Figure 7 shown asymmetric layout drawings 24. By delimiting the extreme processing interval for processing, the processing efficiency can be greatly improved, and the flexibility and compatibility of the equipment can be enhanced.

[0058] The circuit board processing equipment of this embodiment also provides a circuit board processing control method. Combining with the attached Figure 1To appendix Figure 7 , a processing control method for processing a circuit board using a limit processing interval is described in detail.

[0059] S10: Obtain the layout diagram of the circuit board to be processed; obtain the safety distance between the first spindle unit and the second spindle unit for processing the circuit board to be processed in the first direction. The layout diagram 24 of the circuit board to be processed includes a plurality of sub-circuit boards 25 arranged in a matrix, and each sub-circuit board 25 includes a plurality of points to be processed. The first spindle unit 11 and the second spindle unit 12 jointly process the corresponding circuit board 22 to be processed. There is a safety distance P between the first spindle unit 11 and the second spindle unit 12. When the distance between the central axes of the first spindle unit 11 and the second spindle unit 12 in the first direction is greater than or equal to P, the first spindle unit and the second spindle unit will not collide.

[0060] The first spindle unit 11 includes an adjustment part 112 and a first spindle 1100. The adjustment part 112 drives the first spindle 1100 to move within the stroke range in the second direction; the first direction is perpendicular to the second direction. The first spindle unit 11 includes an adjustment part 112 that can adjust the movement of the first spindle 1100 in the second direction. The movement of the first spindle 1100 in the second direction has a predetermined stroke range, and the maximum stroke of this stroke range is Q. That is to say, the maximum stroke of the first spindle 1100 relative to the crossbeam 30 in the second direction is Q.

[0061] S20: According to the safety distance P and the stroke Q, determine the limit processing intervals 26 of the first spindle unit and the second spindle unit on the layout diagram 24. The first spindle unit 11 and the second spindle unit 12 process the same circuit board 22 to be processed. The circuit board 22 to be processed is provided with a plurality of sub-circuit boards 25, and each sub-circuit board 25 includes a plurality of processing points. The double-spindle unit has different processing sequences and methods. In this embodiment, the limit processing intervals 26 are determined first, and the first spindle unit 11 and the second spindle unit 12 process a plurality of sub-circuit boards 25 and a plurality of points within the limit processing intervals 26. As Figure 7 shown, the limit processing interval 26 is a rectangle. The long side of the rectangular structure extends in the first direction, and the side length is M, and M is greater than the safety distance P; the short side of the rectangular structure extends in the second direction, and the side length is N, and N is equal to the maximum stroke range Q of the first spindle moving along the guide rail of the connecting member 1122 in the second direction.

[0062] S30: The first spindle unit 11 and the second spindle unit 12 sequentially process the circuit board 22 to be processed according to the limit processing interval 26. As Figure 7As shown in the figure, on the layout drawing 24, there are multiple sub-circuit boards 25 arranged in a matrix along the first direction and the second direction. Each sub-circuit board 25 includes multiple processing points. In this embodiment, the length M of the extreme processing interval 26 along the first direction is less than the length of the layout drawing 24 along the first direction; the length N of the extreme processing interval 26 along the second direction is less than the length of the sub-circuit board 25 along the second direction. By setting the length M and width N of the extreme processing interval in this way, on the layout drawing 24, the layout drawing 24 can be divided into multiple extreme processing intervals 26. The multiple extreme processing intervals 26 are arranged along the second direction to form a structural diagram of multiple "rows". The first main shaft unit 11 and the second main shaft unit 12 process the extreme processing intervals 26 in the first row first according to the arrangement structure of the multiple extreme processing intervals 26 on the layout drawing 24, and then process the adjacent extreme processing intervals 26 in the second row, and successively process multiple adjacent extreme processing intervals 26. In this processing method using the extreme processing interval 26, the workbench 20 only needs to move in the second direction when switching the extreme processing intervals. When switching the processing points within the extreme processing interval, the first main shaft can move in the second direction. This processing method not only improves the processing accuracy but also improves the processing efficiency. At the same time, it can process symmetric and asymmetric layout drawings, expanding the application range of the circuit board processing equipment.

[0063] In this embodiment, the extreme processing interval 26 is a rectangular processing interval edited by technicians in the application program loaded in the circuit board processing equipment and constructed based on the layout drawing 24. Different extreme processing intervals are constructed according to different layout drawings. The side lengths M and N of the extreme processing interval are data information constructed by technicians, with the unit of millimeters. For example, they can be 622MM, 40MM, etc.

[0064] Embodiment 2

[0065] In this embodiment, taking the circuit board processing equipment as a twelve-axis drilling equipment and two main shaft units processing the circuit board at the same station as an example, the structure of the circuit board processing equipment and the processing control method applied to the circuit board processing equipment are described in detail.

[0066] In this embodiment, the structure of the circuit board processing equipment is basically the same as that in the embodiment. The difference is that the second main shaft unit 12 is also provided with an adjustment part. The first main shaft unit 11 and the second main shaft unit 12 are both provided with an adjustment part 112. The first main shaft 1100 and the second main shaft 1200 can both move in the second direction. Compared with Embodiment 1, the circuit board processing equipment with this architecture has a greater degree of freedom, and the extreme processing interval 26 has a greater processing range in the second direction, further improving the processing efficiency.

[0067] In this embodiment, as Figure 2 、 Figure 3As shown, the first spindle unit 11 includes a spindle portion and a second base plate. The spindle portion 14 is fixedly mounted on the second base plate 13. The second base plate 13 is slidably connected to the cross beam 30 through guide rails and sliders, driving the spindle portion 14 to move in the first direction. The spindle portion 14 includes a first spindle assembly 110 and a driving portion. A slide rail extending in the third direction is provided on the second base plate 13. The driving portion drives the first spindle assembly 110 to move in the third direction on the second base plate 13. The first spindle assembly 110 includes: a first base plate 1101, a first spindle 1100, and a spindle chuck 1102. The first spindle 1100 is disposed within the annular interval surrounded by the spindle chuck 1102. The spindle chuck 1102 is mounted on the first base plate 1101. A tool 23 is clamped at the bottom end of the first spindle 1100. The first spindle 1100 holds the tool 23 and moves in the third direction to machine the circuit board 22 to be processed carried on the workbench 20.

[0068] As Figure 2 shown, the second spindle unit 12 includes: a spindle portion and a second base plate. The spindle portion is fixedly mounted on the second base plate. The second base plate is slidably connected to the cross beam 30 through guide rails and sliders, driving the spindle portion to move in the first direction. The spindle portion includes a second spindle assembly 120 and a driving portion. A slide rail extending in the third direction is provided on the second base plate. The driving portion drives the second spindle assembly 120 to move in the third direction on the second base plate. The second spindle assembly 120 includes: a first base plate, a second spindle 1200, and a spindle chuck. The second spindle 1200 is disposed within the annular interval surrounded by the spindle chuck. The spindle chuck is mounted on the first base plate. A tool 23 is clamped at the bottom end of the second spindle 1200. The second spindle 1200 holds the tool 23 and moves in the third direction to machine the circuit board 22 to be processed carried on the workbench 20. That is to say, the first spindle unit 11 and the second spindle unit 12 have the same structure. Both are provided with an adjustment portion and a locking member, and the adjustment portion and the locking member have the same structure, which will not be elaborated here.

[0069] In this embodiment, there is a safety distance P between the first spindle unit 11 and the second spindle unit 12. The side length M of the extreme machining interval 26 in the first direction is greater than or equal to P. In this embodiment, M is less than the side length of the circuit board to be processed in the first direction. The first spindle of the first spindle unit 11 moves in the second direction on the guide rail of the connecting member, and the maximum stroke range of its movement is Q1; the second spindle of the second spindle unit 12 moves in the second direction on the guide rail of the connecting member, and the maximum stroke range of its movement is Q2; the side length N of the extreme machining interval 26 in the second direction is less than or equal to the sum of Q1 + Q2. On the layout drawing 24 of the circuit board to be processed, the extreme machining interval 26 is edited and set. The extreme machining interval 26 is rectangular, with the side length in the first direction being M and the side length in the second direction being N. Combining with Attached Figure 1 to Attached Figure 6 and Attached Figure 8, the specific processing control method is described in detail as follows:

[0070] S110: Obtain the layout diagram 24 of the circuit board to be processed; obtain the safety distance P between the first spindle unit and the second spindle unit for processing the circuit board to be processed in the first direction. The layout diagram of the circuit board to be processed includes a plurality of sub-circuit boards 25 arranged in a matrix, and each sub-circuit board includes a plurality of points to be processed. The first spindle unit and the second spindle unit jointly process the corresponding circuit board to be processed. There is a safety distance P between the first spindle unit and the second spindle unit. When the distance between the central axes of the first spindle unit and the second spindle unit in the first direction is greater than or equal to P, the first spindle unit and the second spindle unit will not collide.

[0071] The first spindle unit includes an adjustment part and a first spindle, and the adjustment part drives the first spindle to move within the stroke range in the second direction; the first direction is perpendicular to the second direction. The first spindle unit includes an adjustment part that can adjust the movement of the first spindle in the second direction, and the movement of the first spindle in the second direction has a predetermined stroke range, and the maximum stroke of this stroke range is Q1. That is to say, the maximum stroke of the first spindle relative to the crossbeam in the second direction is Q1. The second spindle unit includes an adjustment part and a second spindle, and the adjustment part drives the second spindle to move within the stroke range in the second direction; the first direction is perpendicular to the second direction. The second spindle unit includes an adjustment part that can adjust the movement of the second spindle in the second direction, and the movement of the second spindle in the second direction has a predetermined stroke range, and the maximum stroke of this stroke range is Q2. That is to say, the maximum stroke of the second spindle relative to the crossbeam in the second direction is Q2.

[0072] S120: According to the safety distance P and the strokes Q1 and Q2, determine the limit processing interval 26 of the first spindle unit 11 and the second spindle unit 12 on the layout diagram 24. The first spindle unit 11 and the second spindle unit 12 process the same circuit board 22 to be processed, and a plurality of sub-circuit boards 25 are arranged on the circuit board to be processed, and each sub-circuit board 25 includes a plurality of processing points. The double-spindle unit has different processing sequences and methods. In this embodiment, as Figure 8 shown, first determine the limit processing interval 26, and the first spindle unit 11 and the second spindle unit 12 process a plurality of sub-circuit boards and a plurality of points within the limit processing interval 26. The limit processing interval 26 is rectangular, the long side of the rectangular structure extends in the first direction, and the side length is M, and M is greater than the safety distance P; the short side of the rectangular structure extends in the second direction, and the side length is N, and N is the sum of the maximum stroke ranges of the first spindle and the second spindle in the second direction, that is, N = Q1 + Q2.

[0073] S130: The first spindle unit 11 and the second spindle unit 12 process the to-be-processed circuit board 22 successively according to the limit machining intervals 26. As Figure 8 shown, in the layout drawing 24, there are a plurality of sub-circuit boards 25 arranged in a matrix along the first direction and the second direction, and each sub-circuit board includes a plurality of machining points. In this embodiment, the length M of the limit machining interval 26 along the first direction is less than the length of the to-be-processed circuit board along the first direction; the length N of the limit machining interval 26 along the second direction is equal to the length of the sub-circuit board 25 along the second direction. By setting the length M and width N of the limit machining interval in this way, the layout drawing 24 can be divided into a plurality of limit machining intervals on the layout drawing 24, and the plurality of limit machining intervals are arranged along the second direction to form a structural diagram of a plurality of "rows". The first spindle unit 11 and the second spindle unit 12 process the limit machining intervals 26 in the first row first according to the arrangement structure of the plurality of limit machining intervals 26 on the layout drawing 24, and then process the adjacent limit machining intervals 26 in the second row, and successively process a plurality of adjacent limit machining intervals 26. In this machining method using the limit machining interval, the workbench only needs to move in the second direction when switching the limit machining interval, and when switching the machining points within the limit machining interval, the first spindle and the second spindle can move in the second direction. This machining method not only improves the machining accuracy but also improves the machining efficiency. At the same time, it can process symmetric and asymmetric layout drawings, expanding the application range of the circuit board processing equipment.

[0074] The various embodiments of the present disclosure have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. 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 embodiments. The selection of the terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other ordinary skill in the art in the technical field to understand the embodiments disclosed herein. The scope of the present disclosure is defined by the appended claims.

Claims

1. A spindle assembly, characterized in that, Applicable to circuit board processing equipment, including: A first base plate, a spindle clamp, a first spindle, and an adjustment part, The first spindle is arranged in the annular interval surrounded by the spindle clamp; the spindle clamp is slidably connected to the first base plate through the adjustment part; the adjustment part drives the first spindle and the spindle clamp to move along the first base plate.

2. The spindle assembly according to claim 1, wherein, The adjustment part includes a driving part and a connecting part. The spindle clamp is slidably connected to the first base plate through the connecting part; the driving part drives the spindle clamp and the first spindle to slide on the first base plate in the second direction.

3. The spindle assembly according to claim 2, characterized in that, The connecting part includes a guide rail and a slider. The spindle clamp is provided with a slider, and the first base plate is provided with a guide rail. The driving part drives the slider to drive the spindle clamp to move on the guide rail.

4. The spindle assembly according to claim 1, characterized in that, The spindle assembly further includes a locking part. The locking part penetrates through the first base plate and abuts against the spindle clamp. The locking part is configured to switch the spindle clamp and the first base plate between a locked state and a released state.

5. The spindle assembly according to claim 4, wherein The locking part includes a clamping part and a convex block. The clamping part is arranged on the first base plate, and the convex block is arranged on the spindle clamp. In the locked state, the clamping part clamps the convex block circumferentially.

6. The spindle assembly according to any one of claims 1 to 5, characterized in that, One adjustment part is arranged on each side of the spindle clamp. The two adjustment parts move synchronously and are axisymmetric about the first spindle.

7. A circuit board processing device, characterized in that, Including: A cross beam and a workbench; A first spindle unit and a second spindle unit arranged in a row in the first direction are slidably connected to the cross beam. The first spindle unit and the second spindle unit are used to process the same circuit board carried on the workbench in the third direction; The first spindle unit includes: a first base plate, a spindle clamp, a first spindle, and an adjustment part. The first spindle is arranged in the annular interval surrounded by the spindle clamp; The spindle clamp is slidably connected to the first base plate through the adjustment part; in the second direction, the adjustment part drives the first spindle and the spindle clamp to move along the first base plate; the first direction, the second direction, and the third direction are perpendicular to each other.

8. The circuit board processing equipment according to claim 7, characterized in that, The second spindle unit includes a first base plate, a spindle clamp, a second spindle, and an adjustment part. The second spindle is arranged in the annular interval surrounded by the spindle clamp; the spindle clamp is slidably connected to the first base plate through the adjustment part; the adjustment part drives the spindle clamp and the second spindle to move along the second direction on the first base plate.

9. The circuit board processing device according to any one of claims 7 or 8, characterized in that, The adjustment part includes a driving part and a connecting part. The spindle clamp is slidably connected to the first base plate through the connecting part; the connecting part includes a slide rail and a slider.

10. The circuit board processing equipment according to any one of claims 7 or 8, characterized in that The movement stroke of the first spindle and the second spindle in the second direction is less than the safety distance between the first spindle and the second spindle.

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