Spindle assembly and circuit board processing apparatus

Abstract

The utility model provides a kind of main shaft assembly, it is applicable to circuit board processing equipment, comprising: main shaft part, main shaft part includes connecting piece and main shaft;Connecting piece connects main shaft and main shaft clamp, main shaft clamp is slid in bottom plate along third direction;Adjusting piece, adjusting piece is set to connecting piece, under the adjustment of adjusting piece, connecting piece and main shaft are relative to the movement of main shaft clamp, to fine tune the position of main shaft part in first direction and second direction, first direction, second direction and third direction are perpendicular to each other.The utility model further provides a kind of circuit board processing equipment.This kind of main shaft assembly and circuit board processing equipment, can fine tune the position of main shaft, to improve the precision of double main shaft synchronous processing.

Description

Technical Field

[0001] This utility model relates to the technical field of equipment and methods for processing circuit boards, and more precisely, it relates to a spindle assembly and circuit board processing equipment. Background Technology

[0002] Currently, circuit board processing equipment has achieved single-axis machining. To further improve equipment uptime, multi-axis machining is increasingly becoming the development trend. To achieve multi-axis machining of the same circuit board, it is necessary to adjust the center positions of multiple spindles processing the same circuit board in the X and Y directions. How to adjust the spindle positions and achieve the center positions of multiple spindles within a preset range has become a technical problem that must be solved to improve the efficiency of circuit board processing equipment. Summary of the Invention

[0003] In order to solve the problems existing in the prior art, this utility model provides a spindle assembly and circuit board processing equipment.

[0004] According to a first aspect of the present invention, a spindle assembly is provided, suitable for circuit board processing equipment. The spindle assembly includes: a spindle part, the spindle part including a connector and a spindle; the connector connects the spindle and a spindle clamp, the spindle clamp being slidably attached to a base plate along a third direction; an adjusting member, the adjusting member being disposed on the connector, the connector and the spindle moving relative to the spindle clamp under the adjustment of the adjusting member, so as to finely adjust the position of the spindle part in a first direction and a second direction, the first direction, the second direction and the third direction being perpendicular to each other.

[0005] In some optional embodiments of this utility model, the connector includes a central hole through which the main shaft passes; the connector is integrally formed with the outer peripheral sidewall of the main shaft.

[0006] In some optional embodiments of this utility model, the connector includes first adjustment holes disposed on both sides of the central hole, the adjustment member is disposed in the first adjustment hole, the rotational movement of the adjustment member is controlled, and the connector moves relative to the spindle clamp.

[0007] In some optional embodiments of this utility model, the connector includes first fixing holes disposed on both sides of the central hole, and a fixing member is disposed in the first fixing hole; the fixing member rotates in the first fixing hole, including a fixed state and a released state. In the fixed state, the fixing member fixes the connector on the spindle clamp; in the released state, the adjusting member is controlled to rotate, driving the connector to move relative to the spindle clamp along the first direction and the second direction.

[0008] In some optional embodiments of this utility model, the spindle clamp includes a side portion and an upright portion along a third direction, the connector abuts against the top surface of the side portion, the side portion partially surrounds the spindle, and at least a portion of the outer peripheral sidewall of the spindle is exposed in the side portion; the upright portion slides on the base plate, and the side portion and the upright portion are integrally formed.

[0009] In some optional embodiments of this utility model, the top surface of the side portion is provided with a second adjustment hole and a second fixing hole, at least a portion of the adjustment member extends into the second adjustment hole, and at least a portion of the fixing member extends into the second fixing hole.

[0010] In some optional embodiments of this utility model, the central axes of the second adjustment hole and the first adjustment hole are not collinear, and the diameter of the second adjustment hole is smaller than the diameter of the first adjustment hole.

[0011] In some optional embodiments of this utility model, the connector is provided with an operating hole, the body is embedded in the first adjustment hole, and the groove is aligned with the operating hole.

[0012] According to a second aspect of the present invention, a circuit board processing device is provided, comprising: a base, a worktable disposed on the base, the worktable carrying a circuit board moving along a second direction; a crossbeam, mounted above the worktable, on which at least one processing device moving along a first direction is slidably connected, the processing device comprising a first spindle assembly and a second spindle assembly for synchronously processing circuit boards, the second spindle assembly comprising: a spindle portion, the spindle portion including a connector and a spindle; the connector connecting the spindle and a spindle clamp, the spindle clamp being slidably connected to a base plate along a third direction; and an adjusting member disposed on the connector, wherein, under the adjustment of the adjusting member, the connector and the spindle move relative to the spindle clamp to finely adjust the position of the spindle portion in the first and second directions, the first, second, and third directions being perpendicular to each other.

[0013] The aforementioned spindle assembly and circuit board processing equipment of this utility model feature an integrally formed connector on the outer peripheral sidewall of the spindle. This connector controls the rotation of the adjusting component, causing the connector and spindle to move slightly relative to the spindle clamp, thereby changing the position of the spindle in the first and second directions. This spindle structure allows for fine-tuning of the spindle assembly's center position, improving the accuracy of synchronous copy processing. Furthermore, this structure of the spindle and connector facilitates spindle maintenance and replacement.

[0014] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0015] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0016] Figure 1 This is a schematic diagram of a portion of the circuit board processing equipment provided in an embodiment of the present invention;

[0017] Figure 2This is a schematic diagram of a portion of the circuit board processing equipment provided in an embodiment of the present invention;

[0018] Figure 3 This is a partial structural diagram of the second spindle assembly provided in one embodiment of the present invention;

[0019] Figure 4 This is a partial structural diagram of the second spindle assembly provided in one embodiment of the present invention;

[0020] Figure 5 This is a partial structural diagram of the second spindle assembly provided in one embodiment of the present invention;

[0021] Figure 6 This is a partial structural diagram of the second spindle assembly provided in one embodiment of the present invention;

[0022] Figure 7 This is a schematic diagram of the structure of the adjusting component provided in one embodiment of the present invention;

[0023] Figures 1 to 7 The one-to-one correspondence between the component names and reference numerals in the attached drawings is as follows: 10, machining device; 20, worktable; 30, crossbeam; 40, base; 11, first spindle assembly; 12, second spindle assembly; 120, second spindle section; 121, spindle clamp; 122, base plate; 1200, second spindle; 123, connector; 124, adjusting component; 125, fixing component; 1231, center hole; 1232, first fixing hole; 1233, first adjusting hole; 1233a, first adjusting hole; 1233b, first adjusting hole; 1234, second adjusting hole; 1235, operating hole; 1211, upright section; 1212, side section; 1241, body; 1242, groove; 1243, protrusion. 21, machining area; 22, circuit board; 23, cutting tool. Detailed Implementation

[0024] Various exemplary embodiments of the present invention 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 embodiments do not limit the scope of the present invention.

[0025] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention 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.

[0026] The specific embodiments of this utility model 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," "second," "third," and "fourth" 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," "same," "aligned," "vertical," "horizontal," "above," "consistent," "synchronous," "simultaneously," and "in sequence" are not strict mathematical and / or geometric limitations, and also include errors that are understandable to those skilled in the art and permissible in manufacturing or use.

[0027] The circuit board processing equipment of this utility model includes: a base, a crossbeam, a spindle assembly, a worktable, etc. The worktable is disposed on the base and moves along a second direction. At least one spindle assembly that moves along a first direction is slidably mounted on the crossbeam above the worktable. The spindle of each spindle assembly holds a cutting tool that moves along a third direction to process the circuit board carried on the worktable. The first direction, the second direction, and the third direction are perpendicular to each other. In the context of this utility model, the circuit board processing equipment can be implemented as a drilling equipment, a forming equipment, a milling machine, a drilling and milling integrated machine, etc., and is not limited herein. In the above and below embodiments of this utility model, the number of spindle assemblies of the circuit board processing equipment can be two, four, six, eight, ten, twelve, fourteen, sixteen, etc., and is not limited herein.

[0028] This utility model's spindle assembly includes a spindle section, which comprises a connector and a spindle. The connector connects the spindle and a spindle clamp, the spindle clamp being slidably mounted on a base plate along a third direction. An adjusting member is disposed on the connector. Under the adjustment of the adjusting member, the connector and the spindle move relative to the spindle clamp to fine-tune the position of the spindle section in a first direction and a second direction, wherein the first direction, the second direction, and the third direction are perpendicular to each other. An integrally formed connector is provided on the outer peripheral sidewall of the spindle, controlling the rotation of the adjusting member. Under the adjustment of the adjusting member, the connector and the spindle move slightly relative to the spindle clamp, thereby changing the position of the spindle section in the first direction and the second direction. This spindle section structure allows for fine-tuning of the center position of the spindle assembly, improving the accuracy of synchronous copy machining.

[0029] In some embodiments of the application, the connector includes a central hole through which the spindle passes; the connector is integrally formed with the outer peripheral sidewall of the spindle. The central hole is circular, and the outer contour of the spindle is also circular. The entire spindle passes through the central hole, and the connector surrounds the outer sidewall of the spindle. By providing the connector, the spindle is connected to a spindle clamp, and the position of the spindle relative to the spindle clamp can be changed. The connector is integrally formed with the outer peripheral sidewall of the spindle, and there is no gap between the central hole and the outer peripheral sidewall of the spindle. The spindle is suspended from the spindle clamp by the connector, which supports the spindle, enabling synchronous micro-movement of the connector and the spindle, thus creating conditions for adjusting the position of the spindle.

[0030] In some embodiments of the application, the connector includes first adjusting holes disposed on both sides of a central hole. An adjusting member is disposed in the first adjusting holes, controlling the rotational movement of the adjusting member, and the connector moves relative to the spindle clamp. The connector also has first adjusting holes on both sides of the central hole, and these first adjusting holes are arranged integrally with the central hole along a first direction. An adjusting member is disposed in each first adjusting hole, controlling the rotational movement of the adjusting member within the first adjusting hole. The adjusting member causes relative movement between the connector and the spindle clamp, thereby changing the position of the spindle portion relative to the spindle clamp.

[0031] In some embodiments of this application, the connector includes first fixing holes disposed on both sides of the central hole, and a fixing member is disposed in the first fixing holes. Similar to the first adjusting hole, the first fixing holes are generally arranged along a first direction with the central hole. The first fixing holes are adjacent to the first adjusting holes and on the same side of the spindle, and do not restrict the positions of the first fixing holes and the first adjusting holes. The fixing member rotates in the first fixing hole to fix the connector to the spindle clamp. The fixing member includes a fixed state and a released state. In the fixed state, the fixing member fixes the connector and the spindle to the spindle clamp; in the released state, it controls the connector and the spindle clamp to be in a released state; when the adjusting member is controlled to rotate, it drives the connector to move relative to the spindle clamp along the first direction and the second direction. The fixing member, which includes two states, creates conditions for the adjusting member to adjust the position of the connector and the spindle relative to the spindle clamp as needed.

[0032] In some embodiments of this application, the spindle clamp includes a side portion and an upright portion extending along a third direction. A connector abuts against the top surface of the side portion. The side portion partially surrounds the spindle, and at least a portion of the outer peripheral sidewall of the spindle protrudes from the side portion. The upright portion slides onto the base plate, and the side portion and the upright portion are integrally formed. The spindle clamp slides onto the base plate along a third direction, and the base plate slides onto the crossbeam along a first direction. The spindle clamp includes an upright portion extending along a third direction and a side portion protruding along a second direction, and the upright portion and the side portion are integrally formed. The side portion partially surrounds a portion of the outer peripheral sidewall of the spindle, and at least a portion of the outer peripheral sidewall of the spindle protrudes from the side portion, providing operating space for adjusting the spindle position and facilitating maintenance and replacement of the spindle. The connector abuts against the top surface of the side portion, and the top surface of the side portion is provided with a second adjustment hole and a second fixing hole. The second adjustment hole corresponds one-to-one with the first adjustment hole, and the second fixing hole corresponds one-to-one with the first fixing hole. At least a portion of the adjusting member extends into the second adjusting hole, and at least a portion of the fixing member extends into the second fixing hole. The fixing member passes through the first fixing hole of the connector and abuts against the second fixing hole on the side. The fixing member is tightly fitted in the first and second fixing holes to fix the connector to the spindle clamp. The protrusion of the adjusting member extends into the second adjusting hole on the side. The adjusting member is movably fitted in the first and second adjusting holes. When the adjusting member is rotated, the protrusion of the adjusting member rotates in the second adjusting hole, and the body of the adjusting member rotates in the first adjusting hole. The body presses against the inner wall of the first adjusting hole from the first direction to the second direction, or the body presses against the inner wall of the second adjusting hole from the second direction to the first direction, thereby causing relative displacement between the connector and the side.

[0033] In some embodiments of this application, the adjusting member includes a body, a groove, and a protrusion. The groove and protrusion are located at both ends of the body, and the protrusion is offset from the central axis of the body. The top end of the adjusting member is provided with a groove, and the bottom end of the adjusting member is provided with a protrusion offset from the central axis of the body. A tool is inserted into the groove at the top end of the adjusting member to drive the adjusting member to rotate. During the rotation of the adjusting member with the protrusion as the central axis within the first and second adjusting holes, the body, which is eccentric to the protrusion, presses against the inner wall of the first adjusting hole, causing the inner wall of the first connecting hole to be misaligned with the protrusion. The connecting member moves relative to the side portion, and the spindle moves relative to the spindle clamp along the first and second directions, thereby achieving the purpose of adjusting the center position of the second spindle assembly.

[0034] In some embodiments of this application, the connector is provided with an operating hole, the body is embedded in the first adjustment hole, the groove is aligned with the operating hole, and the protrusion extends into the second adjustment hole. The bottom end of the connector abuts against the top end of the side portion. To accommodate the adjustment component, a second adjustment hole is provided at the top end of the side portion. Correspondingly, the bottom end of the connector has a first adjustment hole opening upwards. The central axis of the second adjustment hole is not collinear with that of the first adjustment hole; that is, the second adjustment hole is offset from the first adjustment hole. This eccentric position is adapted to the eccentric position of the protrusion of the adjustment component. At the same time, the diameter of the second adjustment hole is smaller than the diameter of the first adjustment hole, which is also to adapt to the structure of the protrusion and body of the adjustment component, thereby allowing for stable and effortless adjustment of the adjustment component.

[0035] The first adjustment hole is a recessed hole on the connector, with an operating hole at its top. The operating hole is located on the upper surface of the connector and communicates with the first adjustment hole. In actual assembly, the protrusion of the adjustment component is first inserted into the second adjustment hole, and then the connector is placed over the top of the adjustment component. When the adjustment component is located in the cavity formed by the first and second adjustment holes, the body of the adjustment component is located in the first adjustment hole, with the groove aligned with the operating hole, allowing technicians to use tools to pass through the operating hole and engage the groove, thereby controlling the rotation of the adjustment component. The protrusion is located in the second adjustment hole. During rotation, the adjustment component rotates around the protrusion as its central axis, with the body eccentric relative to the protrusion. This causes the body to press against the inner wall of the first adjustment hole during rotation, driving relative displacement between the connector and the side portion. This displacement changes the positions of the connector and the second spindle in the first and second directions, respectively.

[0036] In some embodiments of this application, the circuit board processing equipment includes: a base, a worktable disposed on the base, the worktable carrying a circuit board moving along a second direction; a crossbeam, mounted above the worktable, on which at least one processing device moving along a first direction is slidably connected, the processing device including a first spindle assembly and a second spindle assembly for synchronously processing circuit boards, the second spindle assembly including: a spindle portion including a connector and a spindle; the connector connecting the spindle and a spindle clamp, the spindle clamp being slidably connected to a base plate along a third direction; an adjusting member disposed on the connector, under the adjustment of the adjusting member, the connector and the spindle moving relative to the spindle clamp to finely adjust the position of the spindle portion in the first and second directions, the first direction, the second direction and the third direction being perpendicular to each other.

[0037] In this invention, each spindle section holds a cutting tool at its bottom end. The spindle section holding the cutting tool reciprocates in a third-order upward motion, enabling switching between multiple machining points. The cutting tool rotates at high speed, achieving cutting machining at a single machining point on the circuit board. Fine-tuning the spindle section position, relative to the spindle clamp and base plate, changes the center position of the spindle assembly. Fine-tuning the center positions of multiple spindle assemblies ensures they are within a preset concentricity range, thereby improving the accuracy of synchronous machining of multiple spindle assemblies.

[0038] In the above and below embodiments of this utility model, when the perpendicularity of the spindle assembly is within a preset range, the center coordinates of the spindle portion are used to determine the center position of the spindle assembly. Specifically, the center coordinate position of the spindle assembly can be detected and determined by detecting the tip of the tool clamped at the bottom of the spindle portion, and can be detected by a tool setter or tool inspection assembly. Simultaneously, when the center coordinate position of the spindle assembly is not within the preset range, the worktable moves relative to the spindle assembly, changing the center coordinates of the spindle assembly in the second direction; the spindle slides along the crossbeam, changing the center coordinates of the spindle assembly in the first direction; thus adjusting the center coordinate position of the spindle assembly. During simultaneous machining with two spindles, using the center coordinate position of one spindle assembly as a reference, an adjusting element is set on the other spindle assembly to fine-tune the center coordinate position of that spindle portion, so that the center coordinate positions of the two spindle assemblies in the first direction are spaced apart by a predetermined distance, and the center coordinate positions in the second direction remain essentially consistent, thereby improving the accuracy of simultaneous machining with two spindles.

[0039] In the upper and lower embodiments of this utility model, the center position of the spindle assembly is fine-tuned. Here, 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 to be adjusted may be 20 micrometers, 10 micrometers, or even a few micrometers. Such orders of magnitude fine-tuning can effectively reduce costs through manual adjustment.

[0040] Example 1

[0041] This embodiment uses a 12-axis drilling machine as an example of a circuit board processing equipment, in which two spindle assemblies simultaneously drill the same circuit board to explain in detail the structure of the spindle assembly and how to adjust the center position of the spindle.

[0042] In this embodiment, as Figure 1 , Figure 2As shown, the circuit board processing equipment includes: a base 40, on which a worktable 20 is disposed, the worktable 20 carrying a circuit board 22 moving along a second direction; a crossbeam 30, mounted above the worktable 20, on which at least one processing device 10 moving along a first direction is slidably connected, the processing device 10 including a first spindle assembly 11 and a second spindle assembly 12 for synchronously processing the circuit board 22, the second spindle assembly 12 including: a second spindle portion 120, the second spindle portion 120 including a connector 123 and a second spindle 1200; the connector 123 connecting the second spindle 1200 and a spindle clamp 121, the spindle clamp 121 being slidably connected to a base plate 122 along a third direction; and an adjusting member 124 disposed on the connector 123, under the adjustment of the adjusting member 124, the connector 123 and the second spindle 1200 moving relative to the spindle clamp 121 to finely adjust the position of the second spindle portion 120 in the first and second directions, the first direction, the second direction and the third direction being perpendicular to each other.

[0043] In this embodiment, as Figure 1 As shown, the circuit board processing equipment is a 12-axis drilling machine. Every two spindle assemblies 11 and 12 form a processing unit 10, and there are a total of six identical processing units 10 in the first direction. The worktable 20 has six processing areas 21, each carrying a circuit board 22. Each processing unit 10 corresponds one-to-one with each processing area 21. Figure 2 As shown, each processing device 10 includes a first spindle assembly 11 and a second spindle assembly 12, which synchronously process a circuit board 22 corresponding to the processing area 21.

[0044] like Figure 2 As shown, in each processing device 10, the first spindle assembly 11 includes a first spindle section (not shown), and the first spindle section includes a first spindle; as Figure 3 and Figure 4 As shown, the second spindle assembly 12 includes a second spindle section 120, which includes a second spindle 1200. Both the first and second spindle sections 120 have a cutting tool 23 for processing the circuit board clamped at their bottom ends. Using the center position of the first spindle section as a reference, the center position of the second spindle section 120 is finely adjusted to bring it within a preset range, thereby reducing the center position deviation between the first and second spindle sections 120 and improving their concentricity. This increases both processing efficiency and accuracy. In this embodiment, the center positions of the first and second spindle sections 120 are detected using tools such as a tool setter, tool inspection assembly, and testing equipment; no limitations are imposed here.

[0045] In this embodiment, as Figures 2 to 4As shown, the second spindle assembly 12 includes: a second spindle portion 120, a spindle clamp 121, and a base plate 122; the second spindle portion 120 is connected to the spindle clamp 121, the spindle clamp 121 is slidably connected to the base plate 122 along a third direction, and the base plate 122 is slidably connected to the crossbeam 30 along a first direction. The second spindle portion 120 includes a connector 123 and a second spindle 1200, the connector 123 being integrally formed with the second spindle 1200, and the connector 123 connecting the second spindle 1200 to the spindle clamp 121. The spindle clamp 121 includes an upright portion 1211 extending along a third direction and a side portion 1212 extending generally along a second direction, the side portion 1212 partially surrounding the outer peripheral sidewall of the second spindle 1200, and at least a portion of the second spindle 1200 protruding from the side portion 1212; the side portion 1212 has an arc-shaped structure, which can connect to and support the second spindle portion 120.

[0046] like Figure 4 As shown, the connector 123 includes a central hole 1231, a first adjusting hole 1233, and a first fixing hole 1232. The second spindle 1200 is fixedly disposed through the central hole 1231, at least a portion of the adjusting member 124 is movably disposed in the first adjusting hole 1233, and at least a portion of the fixing member 125 is tightly disposed in the first fixing hole 1232. The fixing member 125 includes a fixed state and a released state. In the fixed state, the fixing member 125 fixes the connector 123 and the second spindle 1200 to the spindle clamp 121, restricting the relative movement between the second spindle portion 120 and the spindle clamp 121. In the released state, the adjusting member 124 is controlled to rotate in the first adjusting hole 1233. Pressed by the adjusting member 124, the connector 123 is driven to move relative to the spindle clamp 121, changing the position of the second spindle 120 relative to the spindle clamp 121. This position change occurs along a first direction and a second direction.

[0047] like Figure 3 As shown, the spindle clamp 121 includes an upright portion 1211 and a side portion 1212. The upright portion 1211 extends along a third direction, and the side portion 1212 extends generally along a second direction. The side portion 1212 partially surrounds the second spindle 1200, and the top surface of the side portion 1212 abuts against the connector 123. Figure 5As shown, a second adjusting hole 1234 and a second fixing hole (not shown) are provided on the top surface of the side portion 1212. The second adjusting hole 1234 communicates with the first adjusting hole 1233, and the central axes of the second adjusting hole 1234 and the first adjusting hole 1233 are not collinear. The diameter of the second adjusting hole 1234 is smaller than the diameter of the first adjusting hole 1233. The first adjusting hole 1233 and the second adjusting hole 1234 are approximately circular structures with different diameters. The adjusting member 124 passes through the first adjusting hole 1233, and at least a portion of the protrusion extends into the second adjusting hole 1234. During the rotation of the adjusting member 124, the body 1241 presses against the inner wall of the first adjusting hole 1233, causing relative displacement between the driving connector 123 and the side portion 1212. Similarly, the second fixing hole is aligned with the first fixing hole 1232, the fixing member 125 passes through the first fixing hole 1232, and at least a portion extends into the second fixing hole, thereby fixing the connector 123 and the side portion 1212 together.

[0048] In this embodiment, as Figure 5 and Figure 7 As shown, the adjusting member 124 includes an integrally formed body 1241, a groove 1242, and a protrusion 1243. The groove 1242 and the protrusion 1243 are located at both ends of the body 1241, and the protrusion 1243 is offset from the central axis of the body 1241. When a tool is inserted into the groove 1242, the adjusting member 124 rotates within the first adjusting hole 1233 and the second adjusting hole 1234. The body 1241 presses against the inner wall of the first adjusting hole 1233, driving the connecting member 123 and the side portion 1212 to undergo relative displacement, thereby adjusting the position of the connecting member 123 and the second spindle 1200 relative to the spindle clamp 121.

[0049] like Figures 5 to 7 As shown, the connector 123 is provided with an operating hole 1235, the body 1241 is embedded in the first adjustment hole 1233, the groove 1242 is aligned with the operating hole, and the protrusion 1243 extends into the second adjustment hole 1234. The bottom end of the connector 123 abuts against the top end of the side portion 1212, and the second adjustment hole 1234 is provided at the top end of the side portion 1212. To adapt to the structure of the adjusting member 124, the first adjustment hole 1233 is provided at the upper end of the second adjustment hole 1234 and the bottom end of the connector 123. The central axis of the second adjustment hole 1234 and the first adjustment hole 1233 are not collinear. The second adjustment hole 1234 is offset from the first adjustment hole 1233. This eccentric position adapts to the eccentric position of the protrusion 1243 of the adjusting member 124. Meanwhile, the diameter of the second adjustment hole 1234 is smaller than that of the first adjustment hole 1233, which is also to adapt to the structure of the adjustment member protrusion 1243 and the body 1241, so as to adjust the adjustment member 124 stably and effortlessly.

[0050] like Figure 5As shown, an operating hole 1235 is provided at the top of the first adjusting hole 1233. The operating hole 1235 is located on the upper surface of the connector 1233 and communicates with the first adjusting hole 1233. In the actual assembly process, the protrusion 1243 of the adjusting member is first inserted into the second adjusting hole 1234, and then the connector 123 is placed on the upper end of the adjusting member 124. When the adjusting member 124 is located in the cavity formed by the first adjusting hole 1233 and the second adjusting hole 1234, the body 1241 of the adjusting member is located in the first adjusting hole 1233, the groove 1242 is aligned with the operating hole 1235, and the protrusion 1243 is located in the second adjusting hole 1234. This structure allows technicians to use tools to pass through the operating hole 1235 and abut against the groove 1242, thereby controlling the rotation of the adjusting member 124. During the rotation of the adjusting member 124, the adjusting member 124 rotates around the protrusion 1243 as the central axis. The body 1241 is eccentric relative to the protrusion 1243, causing the body 1241 to press against the inner wall of the first adjusting hole 1233 during rotation. This drives the connecting member 123 and the side part 1212 to move relative to each other. This displacement changes the position of the connecting member 123 and the second main shaft 1200 in the first and second directions, thereby achieving the purpose of adjusting the center position of the second main shaft assembly 12.

[0051] like Figure 6 As shown, the first adjustment hole 1233 includes a first adjustment hole 1233b along a first direction and a first adjustment hole 1233a along a second direction. The first adjustment hole 1233 extends along the first and second directions, which are perpendicular to each other. Correspondingly, the adjusting member drives the connecting member to move along the first and second directions. That is, on both sides of the central hole 1231 of the connecting member 123, there are first adjustment holes 1233a and first adjustment holes 1233b. The adjusting member 124 and the second adjustment hole 1234 in the two adjustment holes are the same. The difference is that the extension direction of the first adjustment hole 1233 is different, and the corresponding adjustment direction is different. In the first adjustment hole 1233a, a tool is inserted into the groove 1242 through the operating hole 1235. The adjusting member 124 is rotated, and the body 1241 presses against the inner wall of 1233a, driving the connecting member 123 to move in the second direction and the first direction. The distance of movement in the second direction is greater than the distance of movement in the first direction. In the first adjustment hole 1233b, a tool is inserted into the groove 1242 through the operating hole 1235. Rotating the adjusting member 124 causes the body 1241 to press against the inner wall of 1233b, driving the connecting member 123 to move in the first and second directions. The distance moved in the first direction is greater than the distance moved in the second direction. This structure allows for flexible adjustment of the center position deviation of the second spindle assembly 12 in the first and second directions. The adjusting member at the corresponding position is adjusted based on which direction the deviation is greater, thereby improving adjustment efficiency.

[0052] Specifically, the adjustment method and process of the second spindle assembly 12 are described in detail below: The first spindle assembly 11 and the second spindle assembly 12 of the circuit board processing equipment synchronously process the same circuit board 22. During continuous processing, the concentricity of the two spindle assemblies is randomly checked to prevent deviations from exceeding the range and affecting processing accuracy. Therefore, in the edge area of ​​the circuit board 22, the first spindle assembly 11 and the second spindle assembly 12 are simultaneously processed to each produce a test hole. The detection equipment is used to detect the concentricity of the two test holes. When the concentricity meets the predetermined threshold requirement, the concentricity of the two spindle assemblies is judged to be qualified; when the concentricity does not meet the predetermined threshold requirement, the concentricity of the two spindle assemblies is judged to be unqualified, and the concentricity adjustment process needs to be executed. According to the detection equipment, the concentricity deviation of the two spindle assemblies in the first direction and the second direction is △X1 and △Y1, respectively. This deviation exceeds the preset threshold and needs to be reduced to zero. It should be noted that this deviation is a relative concentricity deviation, which has already eliminated the theoretical distance between the two spindle assemblies in the first direction.

[0053] During the adjustment process, the center position of the second spindle assembly 12 is adjusted based on the center position of the first spindle assembly 11 to eliminate deviations △X1 and △Y1. Specifically, in the first step, the technician first uses a tool to loosen the fixing member 125, and the fixing member 125 switches to the released state, and the connecting member 123 of the second spindle 120 is in an unlocked state with the side part 1212 of the spindle clamp 121. In the second step, the technician rotates the adjusting member 124, and the adjusting member 124 rotates within the first adjusting hole 1233 and the second adjusting hole. The body 1241 of the adjusting member 124 presses against the inner wall of the first adjusting hole 1233, driving the connecting member 123 and the side part 1212 to move slightly relative to each other. This slight movement causes the second spindle 1200 supported by the connecting member 123 to move slightly along with the connecting member 123. That is to say, the second spindle part 120 and the spindle clamp 121 undergo relative displacement, which includes the first direction and the second direction.

[0054] The third step involves detecting the offset between the actual and original position coordinates of the second spindle 1200 until the offset in the second direction reaches the deviation value △Y1 (at which point the offset in the first direction is △X2), at which point the adjustment stops. It should be noted that this is a process of multiple adjustments and verifications until the adjusted offset value reaches the deviation value △Y1 in the second direction. The fourth step involves a technician using a tool to rotate the fixing member 125, switching it to a fixed state. The connecting member 123 and the side part 1212 are locked by the fixing member 125, preventing relative displacement between the second spindle part 120 and the spindle clamp 121. The fifth step involves controlling the second spindle assembly 12 to move along the first direction on the crossbeam 30, with the movement distance being the difference between △X1 and △X2. At this point, the deviation △X1 of the second spindle assembly 12 in the first direction is adjusted to zero. First, the deviation of the second spindle 1200 in the second direction is adjusted by adjusting the adjusting component 124 and connecting component 123. Although the first direction is also displaced at this time, the first direction position of the second spindle assembly 12 is adjusted on the crossbeam 30 to make up the value in the first direction, thus achieving the purpose of adjusting the deviations △X1 and △Y1 of the second spindle assembly 12.

[0055] In this spindle assembly and circuit board processing equipment, the structure and position of the connectors in the second spindle assembly not only allow for adjustment of the spindle position and improvement of synchronous processing accuracy, but also facilitate spindle maintenance and replacement.

[0056] Example 2

[0057] This embodiment uses a 12-axis drilling machine as an example of a circuit board processing equipment, in which two spindle assemblies simultaneously drill the same circuit board to explain in detail the structure of the spindle assembly and how to adjust the center position of the spindle.

[0058] The circuit board processing equipment and spindle assembly in this embodiment are basically the same as those in Embodiment 1, except that the three first spindle assemblies 11 are connected in series using connecting rods, and correspondingly, the three second spindle assemblies 12 are connected in series using connecting rods. The structure of the circuit board processing equipment, the structure of the first spindle assembly 11 and the structure of the second spindle assembly 12 are the same as those in Embodiment 1, and will not be described again here.

[0059] In this embodiment, three first spindle assemblies 11 are connected in series by a connecting rod and move synchronously in a first direction; three second spindle assemblies 12 are connected in series by another connecting rod and move synchronously in the first direction. Based on this spindle assembly structure connected in series by a connecting rod, the method for detecting concentricity deviation is the same as in Embodiment 1. The method of machining test holes can be used to detect the concentricity deviations ΔX1 and ΔY1 of the first spindle assembly 11 and the second spindle assembly 12 in the same machining device 10.

[0060] Within the same processing device 10, under the premise of known concentricity deviations △X1 and △Y1, similar to Embodiment 1, the position of the second spindle assembly 12 is adjusted based on the first spindle assembly 11. Since the second spindle assembly 12 has the same structure as in Embodiment 1, the adjustment method is also the same. The only difference is in the fifth step: when controlling the second spindle assembly 12 to move along the first direction on the crossbeam 30, its drive mechanism drives the three second spindle assemblies 12 connected in series to move as a whole along the first direction on the crossbeam 30, in order to eliminate or reduce the positional deviation △X1 in the first direction.

[0061] This type of spindle assembly and circuit board processing equipment is also applicable to the second spindle assembly that protects the connectors and adjusters. The structure and position of the connectors in the second spindle assembly can not only adjust the spindle position and improve the synchronous processing accuracy, but also facilitate the maintenance and replacement of the spindle.

[0062] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical applications, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein. The scope of the present invention is defined by the appended claims.

Claims

1. A spindle assembly, characterized in that, Suitable for circuit board processing equipment, the spindle assembly includes: The spindle section includes a connector and a spindle; the connector connects the spindle and a spindle clamp, and the spindle clamp slides on the base plate along a third direction. An adjusting member is disposed on the connecting member. Under the adjustment of the adjusting member, the connecting member and the spindle move relative to the spindle clamp to fine-tune the position of the spindle in a first direction and a second direction, wherein the first direction, the second direction and the third direction are perpendicular to each other.

2. The spindle assembly according to claim 1, characterized in that, The connector includes a central hole, through which the spindle passes.

3. The spindle assembly according to claim 2, characterized in that, The connector includes first adjustment holes on both sides of the central hole. The adjustment member is disposed in the first adjustment hole, and the rotation of the adjustment member is controlled to cause the connector to move relative to the spindle clamp.

4. The spindle assembly according to claim 3, characterized in that, The connector includes first fixing holes disposed on both sides of the central hole, and fixing members are disposed in the first fixing holes; the fixing members rotate in the first fixing holes, including a fixed state and a released state. In the fixed state, the fixing members fix the connector to the spindle clamp; in the released state, the adjusting member is controlled to rotate, driving the connector to move relative to the spindle clamp along the first direction and the second direction.

5. The spindle assembly according to claim 4, characterized in that, The spindle clamp includes a side portion and an upright portion along the third direction. The connector abuts against the top surface of the side portion. The side portion partially surrounds the spindle, and at least a portion of the outer peripheral sidewall of the spindle is exposed above the side portion. The upright portion slides onto the base plate, and the side portion and the upright portion are integrally formed.

6. The spindle assembly according to claim 5, characterized in that, The top surface of the side portion is provided with a second adjustment hole and a second fixing hole, at least a portion of the adjustment member extends into the second adjustment hole, and at least a portion of the fixing member extends into the second fixing hole.

7. The spindle assembly according to claim 6, characterized in that, The second adjusting hole is not collinear with the central axis of the first adjusting hole, and the diameter of the second adjusting hole is smaller than the diameter of the first adjusting hole.

8. The spindle assembly according to any one of claims 3 to 7, characterized in that, The adjusting member includes a body, a groove, and a protrusion. The groove and the protrusion are located at both ends of the body, and the protrusion is offset from the central axis of the body.

9. The spindle assembly according to claim 8, characterized in that, The connector is provided with an operating hole, the body is embedded in the first adjustment hole, and the groove is aligned with the operating hole.

10. A circuit board processing equipment, characterized in that, include: A base, on which a worktable is provided, the worktable carrying a circuit board that moves along a second direction; A crossbeam is mounted above the worktable, and at least one processing device that moves in a first direction is slidably connected to the crossbeam. The processing device includes a first spindle assembly and a second spindle assembly that synchronously process the circuit board. The second spindle assembly includes: The spindle section includes a connector and a spindle; the connector connects the spindle and a spindle clamp, and the spindle clamp slides on the base plate along a third direction. An adjusting member is disposed on the connecting member. Under the adjustment of the adjusting member, the connecting member and the spindle move relative to the spindle clamp to fine-tune the position of the spindle in a first direction and a second direction, wherein the first direction, the second direction and the third direction are perpendicular to each other.

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