ADJUSTMENT DEVICES, MULTI-STRAIN DRILLING MACHINES AND ADJUSTMENT METHODS FOR MULTI-STRAIN DRILLING MACHINES

Abstract

The adjusting device, comprising the adjusting unit (1), the first spindle bushing (31) and the second spindle bushing (32), wherein the first spindle bushing is used to fit inside a first spindle (4) of the multi-spindle drilling machine, and the second spindle bushing is used to fit inside a second spindle (5) of the multi-spindle drilling machine. The adjusting unit can move at least one of the first spindle bushing and the second spindle bushing, thereby moving at least one of the first spindle and the second spindle.By having the adjusting mechanism move at least one of the first and second spindles, fine adjustment of the position of the first and second spindles on the XY plane can be performed, thereby reducing errors that may arise from the manufacturing or assembly of machined parts, and ensuring that the center distances of the first and second spindles relative to the PCB are equal, thus achieving high-precision adjustment. At the same time, the invention also relates to a multi-spindle drilling machine and a method for adjusting such a machine.

Description

Adjustment device, multi-axis drilling machine and adjustment method thereof

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on October 20, 2023, with application number 202311375619.6 and application name “An adjustment device, a multi-axis drilling machine and its adjustment method”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present invention belongs to the technical field of drilling machines, and in particular relates to an adjustment device, a multi-axis drilling machine and an adjustment method thereof. Background Art

[0003] PCBs demanded by the end market are generally small. To improve processing efficiency, during the PCB production process, several identical small PCBs are usually processed from a large PCB board, and then cut. To further improve work efficiency, two or more spindles are often used to process a single PCB board simultaneously, a process called panelization.

[0004] When machining multiple PCBs simultaneously on a drilling machine, the two or more spindles corresponding to each PCB must maintain equal spacing in both the X and Y directions. However, due to manufacturing variations in the workpieces and assembly errors, relying solely on assembly tools and processes results in low adjustment precision and an inability to ensure equal spacing in both the X and Y directions. This can lead to misalignment of the machined holes, resulting in scrapped PCBs.

[0005] Summary of the Invention

[0006] The technical problem to be solved by the present invention is: to address the problem of low adjustment accuracy when simultaneously processing multiple PCB boards on an existing drilling machine, and to provide an adjustment device, a multi-axis drilling machine and an adjustment method thereof.

[0007] In order to solve the above technical problems, on the one hand, an embodiment of the present invention provides an adjustment device, including an adjustment part, a first sleeve and a second sleeve, the first sleeve is used to be sleeved on the outside of the first main shaft of the multi-axis drilling machine, and the second sleeve is used to be sleeved on the outside of the second main shaft of the multi-axis drilling machine. The adjustment part can drive at least one of the first sleeve and the second sleeve to move, thereby driving at least one of the first main shaft and the second main shaft to move.

[0008] On the other hand, an embodiment of the present invention provides a drilling machine, comprising an adjustment device as described above, a working platform and at least one spindle assembly, wherein the adjustment device is arranged on the spindle assembly, and the spindle assembly is arranged above the working platform, and each of the spindle assemblies includes at least the first spindle and the second spindle.

[0009] On the other hand, an embodiment of the present invention provides a method for adjusting a multi-spindle drilling machine, which is used for adjusting the multi-spindle drilling machine as described above;

[0010] include:

[0011] Setting a target spacing between a first spindle and a second spindle on an XY plane; wherein the first spindle and the second spindle are used to process the same plate, and the XY plane is defined with the work platform as a reference;

[0012] driving at least one of the first spindle and the second spindle to move;

[0013] measuring an actual distance between the first main axis and the second main axis;

[0014] Obtaining a difference between the target distance and the actual distance;

[0015] Based on the difference, a position of at least one of the first spindle and the second spindle is adjusted on the XY plane until the difference between the target spacing and the actual spacing satisfies a preset difference.

[0016] The adjustment device provided in an embodiment of the present invention drives at least one of the first spindle and the second spindle to move through the adjustment portion, thereby fine-tuning the positions of the first spindle and the second spindle on the XY plane, reducing errors caused by the manufacture or assembly of the workpiece, making the spacing between the two or more spindles corresponding to each PCB board substantially equal, achieving high-precision adjustment of the first spindle and the second spindle, reducing the possibility of misalignment of the processing holes on the PCB board and causing the PCB board to be scrapped, and the operation process is relatively simple, thereby improving the reliability of panel processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG1 is a schematic diagram of the cooperation between the adjustment device and the main shaft provided by one embodiment of the present invention;

[0018] FIG2 is an exploded view of an adjustment device provided in one embodiment of the present invention;

[0019] 3 is a schematic diagram of a first adjustment portion and a second adjustment portion provided in one embodiment of the present invention;

[0020] 4 is a schematic diagram of the cooperation between the first adjustment portion and the first sleeve and the second adjustment portion and the second sleeve provided in one embodiment of the present invention;

[0021] FIG5 is a schematic diagram of a drilling machine provided in accordance with an embodiment of the present invention.

[0022] The figures in the specification are marked as follows: 1. Adjustment part; 11. First adjustment part; 111. First movable part; 112. First adjustment part; 1121. First threaded segment; 1122. Second threaded segment; 113. First fixing part; 114. First guide rod; 12. Second adjustment part; 121. Second movable part; 122. Second adjustment part; 1221. Third threaded segment; 1222. Fourth threaded segment; 123. Second fixing part; 124. Second guide rod; 21. First mounting seat; 211. First accommodating cavity; 22. Second mounting seat; 221. Second accommodating cavity; 31. First shaft sleeve; 311. First slot; 32. Second shaft sleeve; 321. Second slot; 4. First spindle; 5. Second spindle; 6. Base plate; 7. Linear motor; 8. Mounting plate; 9. Suspension rod. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] As shown in Figures 1 to 5, on the one hand, an embodiment of the present invention provides an adjustment device for adjusting a multi-axis drilling machine. The adjustment device includes an adjustment portion 1, a first sleeve 31, and a second sleeve 32. The first sleeve 31 is used to be mounted on the outside of the first spindle 4 of the multi-axis drilling machine, and the second sleeve 32 is used to be mounted on the outside of the second spindle 5 of the multi-axis drilling machine. The adjustment portion 1 can drive at least one of the first sleeve 31 and the second sleeve 32 to move, thereby driving at least one of the first spindle 4 and the second spindle 5 to move, thereby fine-tuning the positions of the first spindle 4 and the second spindle 5 on the XY plane, reducing errors caused by the manufacture or assembly of the workpiece, making the spacing between the two or more spindles corresponding to each PCB board substantially equal, and achieving high-precision adjustment of the first spindle 4 and the second spindle 5.

[0025] In one embodiment, the adjustment part 1 includes a first adjustment part 11 and a second adjustment part 12. The first adjustment part 11 can drive the first sleeve 31 to move on the XY plane, thereby adjusting the position of the first main shaft 4. The second adjustment part 12 can drive the second sleeve 32 to move on the XY plane, thereby adjusting the position of the second main shaft 5.

[0026] As shown in Figures 1 and 2, the first adjustment unit 11 includes a first movable member 111 and a first adjustment member 112. The first movable member 111 is connected to the first sleeve 31, and the first adjustment member 112 is connected to the first movable member 111. The first adjustment member 112 can drive the first movable member 111 to move, thereby driving the first sleeve 31 to move in the XY plane. The first spindle 4 moves along with the first sleeve 31 in the XY plane, thereby achieving high-precision adjustment of the first spindle 4.

[0027] As shown in Figure 3, the first adjustment part 11 also includes a first fixing member 113, and the first adjusting member 112 includes a first threaded segment 1121 and a second threaded segment 1122. The first threaded segment 1121 is threadedly connected to the first movable member 111, and the second threaded segment 1122 is threadedly connected to the first fixing member 113. The first fixing member 113 remains stationary. By rotating the first adjusting member 112, the first adjusting member 112 can move relative to the first fixing member 113, and at the same time can drive the first movable member 111 to move back and forth along the axial direction of the first adjusting member 112. Under the connection between the first movable member 111 and the first shaft sleeve 31, the first shaft sleeve 31 is driven to move, and the first shaft sleeve 31 can drive the first main shaft 4 to move together. The first fixing member 113 has a guiding effect on the movement of the first adjusting member 112, and can also limit the stroke of the first movable member 111.

[0028] In one embodiment, the pitch of the first thread segment 1121 is different from the pitch of the second thread segment 1122. Due to the different pitches, when the first adjusting member 112 rotates, the first movable member 111 moves closer to or farther away from the first fixed member 113 along the axial direction of the first adjusting member 112, and the distance moved by the first movable member 111 is equal to the pitch difference between the first thread segment 1121 and the second thread segment 1122. By adjusting the rotation angle of the first adjusting member 112, the distance moved by the first movable member 111 can be more accurately adjusted, thereby accurately adjusting the movement distance of the first sleeve 31 and the first spindle 4.

[0029] For example, the thread of the first thread segment 1121 is M5X0.8mm, the thread of the second thread segment 1122 is M8X0.75mm, and the pitch difference between the first thread segment 1121 and the second thread segment 1122 is 0.05mm. At this time, when the first adjusting member 112 rotates one circle clockwise or counterclockwise, the first movable member 111 will advance or retreat 0.05mm.

[0030] In one embodiment, as shown in FIG2 , the adjustment device further includes a first mounting seat 21, a first fixing member 113 being disposed on the first mounting seat 21, the first mounting seat 21 having a first inner cavity, and a clearance between the first sleeve 31 and the first inner cavity. This clearance is the maximum adjustment range of the first sleeve 31. The first mounting seat 21 is fixedly mounted on the drilling machine, and the first inner cavity extends through the first mounting seat 21 along the axial direction of the first spindle 4. Both ends of the first spindle 4 protrude axially from the first mounting seat 21, allowing the first spindle 4 to move up and down axially within the first sleeve 31 to achieve the drilling function.

[0031] In one embodiment, as shown in Figures 2 and 4, a first notch 311 is provided on the first sleeve 31, a first accommodating cavity 211 is provided in the first mounting seat 21, the first notch 311 is communicated with the first accommodating cavity 211, the first movable member 111 is provided in the first accommodating cavity 211, and the first movable member 111 is engaged in the first notch 311, so that when the first movable member 111 moves, it drives the first sleeve 31 to move, thereby realizing the adjustment of the position of the first sleeve 31 and the first spindle 4.

[0032] In one embodiment, as shown in Figure 3, the first adjustment portion 11 also includes at least one first guide rod 114, one end of the first guide rod 114 is connected to the first movable member 111 through a flat round head screw, and the other end of the first guide rod 114 is inserted into the first fixed member 113. The first guide rod 114 can guide the moving direction of the first movable member 111, so that when the first adjustment member 112 is rotated, the first movable member 111 cannot flip over and can only move along the axial direction of the first adjustment member 112.

[0033] Preferably, two first guide rods 114 are provided to ensure a guiding effect for the first movable member 111 .

[0034] In one embodiment, as shown in Figures 1 and 2, the second adjustment portion 12 includes a second movable member 121 and a second adjustment member 122. The second movable member 121 is connected to the second shaft sleeve 32, and the second adjustment member 122 is connected to the second movable member 121. The second adjustment member 122 can drive the second movable member 121 to move, and then drive the second shaft sleeve 32 to move on the XY plane, so that the second spindle 5 follows the second shaft sleeve 32 to move in the XY plane, thereby achieving high-precision adjustment of the second spindle 5.

[0035] In one embodiment, as shown in Figures 2 and 3, the second adjustment portion 12 further includes a second fixing member 123. The second adjustment member 122 includes a third threaded segment 1221 and a fourth threaded segment 1222. The third threaded segment 1221 is threadedly connected to the second movable member 121, and the fourth threaded segment 1222 is threadedly connected to the second fixing member 123. The second fixing member 123 remains stationary. By rotating the second adjustment member 122, the second adjustment member 122 can move relative to the second fixing member 123, while also driving the second movable member 121 to move back and forth along the axial direction of the second adjustment member 122. The connection between the second movable member 121 and the second shaft sleeve 32 drives the second shaft sleeve 32 to move, and the second shaft sleeve 32 can drive the second main shaft 5 to move together. The second fixing member 123 guides the movement of the second adjustment member 122 and also limits the travel of the first movable member 111.

[0036] In one embodiment, the pitch of the third thread segment 1221 is different from the pitch of the fourth thread segment 1222. Due to the different pitches, when the second adjusting member 122 rotates, the second movable member 121 moves closer to or farther away from the second fixed member 123 along the axial direction of the second adjusting member 122, and the distance moved by the second movable member 121 is equal to the pitch difference between the third thread segment 1221 and the fourth thread segment 1222. By adjusting the rotation angle of the second adjusting member 122, the distance moved by the second movable member 121 can be more accurately adjusted, thereby accurately adjusting the movement distance of the second sleeve 32 and the second spindle 5.

[0037] For example, the thread of the third thread segment 1221 is M5X0.8mm, the thread of the fourth thread segment 1222 is M8X0.75mm, and the pitch difference between the third thread segment 1221 and the fourth thread segment 1222 is 0.05mm. At this time, when the second adjusting member 122 rotates one circle clockwise or counterclockwise, the second movable member 121 will advance or retreat 0.05mm.

[0038] In one embodiment, as shown in FIG2 , the adjustment device further includes a second mounting seat 22 , a second fixing member 123 disposed on the second mounting seat 22 , the second mounting seat 22 having a second inner cavity, and a second sleeve 32 having a clearance fit therewith. The second mounting seat 22 is fixedly mounted on the drilling machine, and the second inner cavity extends through the second mounting seat 22 along the axial direction of the second spindle 5 . Both ends of the second spindle 5 protrude axially from the second mounting seat 22 , allowing the second spindle 5 to move up and down axially within the second sleeve 32 to achieve the drilling function.

[0039] In one embodiment, as shown in Figures 2 and 4, a second notch 321 is provided on the second sleeve 32, a second accommodating chamber 221 is provided in the second mounting seat 22, the second notch 321 is communicated with the second accommodating chamber 221, the second movable member 121 is provided in the second accommodating chamber 221, and the second movable member 121 is engaged in the second notch 321, so that when the second movable member 121 moves, it drives the second sleeve 32 to move, thereby realizing the adjustment of the second sleeve 32 and the second main shaft 5.

[0040] In one embodiment, as shown in FIG3 , the second adjustment portion 12 further includes at least one second guide rod 124. One end of the second guide rod 124 is connected to the second movable member 121 via a flat head screw, and the other end of the second guide rod 124 is inserted into the second fixing member 123. The second guide rod 124 guides the movement direction of the second movable member 121, so that when the second adjustment member 122 is rotated, the second movable member 121 cannot flip over and can only move along the axial direction of the second adjustment member 122. Preferably, two second guide rods 124 are provided to ensure a good guiding effect on the second movable member 121.

[0041] In one embodiment, the first sleeve 31 is an air-floating sleeve. The first spindle 4 and the first sleeve 31 are loosely fitted, and a first air film is formed between the outer circumference of the first spindle 4 and the inner circumference of the first sleeve 31. The first spindle 4 and the first sleeve 31 are coaxial. The space between the outer circumference of the first spindle 4 and the inner circumference of the first sleeve 31 is filled with high-pressure air to form the first air film. Due to the air-floating force, the first spindle 4 and the first sleeve 31 remain coaxial at all times. Therefore, the central axis position of the first spindle 4 can be adjusted by adjusting the position of the first sleeve 31.

[0042] The second sleeve 32 is an air-floating sleeve. The second spindle 5 has a clearance fit with the second sleeve 32. A second air film is formed between the outer circumference of the second spindle 5 and the inner circumference of the second sleeve 32, and the second spindle 5 and the second sleeve 32 are coaxial. The second air film is filled with high-pressure air between the outer circumference of the second spindle 5 and the inner circumference of the second sleeve 32. Under the action of the air buoyancy force, the second spindle 5 always remains coaxial with the second sleeve 32. Therefore, by adjusting the position of the second sleeve 32, the position of the central axis of the second spindle 5 can be adjusted.

[0043] In one embodiment, at least two first adjustment portions 11 are provided, one of which is used to adjust the position of the first spindle 4 in the X-direction, and the other is used to adjust the position of the first spindle 4 in the Y-direction. It is understood that when the position of the first spindle 4 in either the X-direction or the Y-direction meets the requirements, one of the first adjustment portions 11 can be adjusted in the other direction, allowing adjustment in only one direction. When the position of the first spindle 4 in both the X-direction and the Y-direction does not meet the requirements, the first spindle 4 can be adjusted to any position on the XY plane using both first adjustment portions 11, thereby improving adjustment accuracy and providing a wider range of applicability.

[0044] At least two second adjustment sections 12 are provided, one of which is used to adjust the position of the second spindle 5 in the X-direction, and the other is used to adjust the position of the second spindle 5 in the Y-direction. It is understood that when the position of the second spindle 5 in either the X-direction or the Y-direction meets the requirements, one of the second adjustment sections 12 can be adjusted in the other direction, allowing adjustment in only one direction. If the position of the second spindle 5 in both the X-direction and the Y-direction does not meet the requirements, the two second adjustment sections 12 can be used to adjust the second spindle 5 to any position on the XY plane, thereby improving adjustment accuracy and providing a wider range of applicability.

[0045] In the X direction, the sum of the adjustment distances of the first adjustment member 112 of one first adjustment portion 11 and the second adjustment member 122 of one second adjustment portion 12 is the first difference. In the Y direction, the sum of the adjustment distances of the first adjustment member 112 of another first adjustment portion 11 and the second adjustment member 122 of one second adjustment portion 12 is the second difference.

[0046] On the other hand, an embodiment of the present invention provides a multi-axis drilling machine, including an adjustment device, a working platform and at least one spindle assembly of the above embodiment, the adjustment device is arranged on the spindle assembly, a plate to be processed is placed on the working platform, and the spindle assembly is arranged above the working platform, and each spindle assembly includes at least a first spindle 4 and a second spindle 5.

[0047] In one embodiment, as shown in Figures 1 and 5, the multi-axis drilling machine further includes a base plate 6, a linear motor 7, a mounting plate 8, and a suspension rod 9. The base plate 6 is fixedly mounted on the drilling machine body, and the first mounting seat 21 or the second mounting seat 22 is mounted on the corresponding base plate 6. The linear motor 7 is connected between the base plate 6 and the mounting plate 8. When powered on, the mounting plate 8 can move up and down in the vertical direction. One end of the suspension rod 9 is connected to the mounting plate 8, and the other end of the suspension rod 9 is connected to the first spindle 4 or the second spindle 5. The other end of the suspension rod 9 is radially fitted with a clearance between the first spindle 4 or the second spindle 5. When the first sleeve 31 and the second sleeve 32 move on the XY plane, the clearance between the suspension rod 9 and the spindle allows the first spindle 4 and the second spindle 5 to move smoothly, thereby preventing the suspension rod 9 from obstructing the movement of the first spindle 4 and the second spindle 5.

[0048] In another aspect, an embodiment of the present invention provides an adjustment method for a multi-spindle drilling machine. During panelization, small PCBs are arranged in a matrix on a large PCB. The two or more spindles corresponding to each PCB are spaced equally in the X and Y directions. This ensures that the machining holes on each small PCB are positioned identically, minimizing the risk of PCB board scrapping due to misaligned machining holes. For example, a multi-spindle drilling machine with two spindles, namely a first spindle 4 and a second spindle 5, is adjusted using the following method.

[0049] The adjustment method of the multi-spindle drilling machine includes the following steps:

[0050] S10. Set the target spacing a between the first spindle 4 and the second spindle 5 on the XY plane. The first spindle 4 and the second spindle 5 are used to process the same plate. The XY plane is defined with the work platform as the reference, and the X and Y directions are set. The axis direction of the first spindle 4 or the second spindle 5 is denoted as the Z axis direction. The XY plane is a plane perpendicular to the axis direction. The target spacing a is the distance between the projection point of the center axis of the first spindle 4 and the projection point of the center axis of the second spindle 5 on the XY plane. The target spacing a is determined based on the processing requirements on the PCB board.

[0051] S20 , driving at least one of the first spindle 4 and the second spindle 5 to move, so as to achieve a coarse adjustment of the distance between the first spindle 4 and the second spindle 5 .

[0052] S30: Measure the actual distance between the first spindle 4 and the second spindle 5 to determine whether the actual distance is a. If the actual distance is a, keep the current positions of the first spindle 4 and the second spindle 5 unchanged; if the actual distance is not a, proceed to the next step.

[0053] S40. Obtain the difference between the target spacing and the actual spacing, and based on the difference, adjust the position of at least one of the first spindle 4 and the second spindle 5 on the XY plane to achieve high-precision adjustment of the spacing between the first spindle 4 and the second spindle 5 until the difference between the target spacing and the actual spacing meets a preset difference.

[0054] The adjustment method of the multi-axis drilling machine provided by the embodiment of the present invention drives the first spindle 4 and the second spindle 5 to move, determines the relative position between the two, and after achieving coarse adjustment, further performs fine adjustment according to the difference between the actual spacing and the target spacing, thereby reducing the error that may be caused by the manufacture or assembly of the workpiece, so that the spacing between the first spindle 4 and the second spindle 5 corresponding to each PCB board is equal, achieving high-precision adjustment, reducing the misalignment of the processing holes on the PCB board and causing the PCB board to be scrapped, the operation process is relatively simple, and the reliability of the panel processing is improved.

[0055] Preferably, in the multi-axis drilling machine, the X-direction spacing and the Y-direction spacing of the two or more spindles corresponding to each PCB board are equal, the preset difference is zero, and the target spacing and the actual spacing are equal.

[0056] In one embodiment, the multi-axis drilling machine has multiple spindle assemblies, which can process multiple PCB boards at the same time. The spacing between the first spindle 4 and the second spindle 5 corresponding to each PCB board is equal, and both can be adjusted using the above adjustment method.

[0057] In one embodiment, in step S20, when performing coarse adjustment, in actual application scenarios, the second spindle 5 can be driven to move with the first spindle 4 as a reference. Alternatively, the first spindle 4 can be driven to move with the second spindle 5 as a reference. Alternatively, the first spindle 4 and the second spindle 5 can be driven to move simultaneously, both of which can achieve coarse adjustment of the first spindle 4 and the second spindle 5. Preferably, one of the first spindle 4 and the second spindle 5 is driven to move with the other as a reference, so that the approximate spacing between the first spindle 4 and the second spindle 5 is a. This adjustment method requires fewer operations and improves adjustment efficiency.

[0058] The multi-axis drilling machine shown in Figure 5 has three work platforms, each with two spindles. The first spindle 4 and the second spindle 5 on the first work platform are designated as the Z1 axis and the Z2 axis, respectively. The first spindle 4 and the second spindle 5 on the second work platform are designated as the Z3 axis and the Z4 axis, respectively. The first spindle 4 and the second spindle 5 on the third work platform are designated as the Z5 axis and the Z6 axis, respectively. In actual use, the spacing between the first spindle 4 and the second spindle 5 corresponding to each PCB board must be equal. This means that the spacing between the Z1 axis and the Z2 axis in the X direction, the spacing between the Z3 axis and the Z4 axis in the X direction, and the spacing between the Z5 axis and the Z6 axis in the X direction must be equal. The spacing between the Z1 axis and the Z2 axis in the Y direction, the spacing between the Z3 axis and the Z4 axis in the Y direction, and the spacing between the Z5 axis and the Z6 axis in the Y direction must be equal. In the multi-axis drilling machine shown in Figure 5, the multiple spindles are located on the same straight line in the Y direction, so the spacing in the Y direction is zero.

[0059] To reduce costs, a single motor is typically used to drive the multiple spindles in the X direction when driving the first and second spindles 4 and 5. For example, the first motor can drive the Z1, Z3, and Z5 axes in the X direction, while the second motor can drive the Z2, Z4, and Z6 axes in the X direction, thereby adjusting the spacing in the X direction.

[0060] When the second spindle 5 is driven to move with the first spindle 4 as the reference, only the second motor operates to move the multiple second spindles 5. When the first spindle 4 is driven to move with the second spindle 5 as the reference, only the first motor operates to move the multiple first spindles 4. When the first and second spindles 4 and 5 are driven simultaneously, the first motor operates to move the multiple first spindles 4, and the second motor operates to move the multiple second spindles 5, performing coarse adjustment.

[0061] The coarse adjustment step described above has low accuracy. While it can determine the approximate position of the first and second spindles 4, 5, it cannot guarantee that the spacing between them in the X and Y directions is equal. In step S30, the actual spacing between the first and second spindles 4, 5 is measured to determine the precise relative position of the first and second spindles 4, 5 and to determine the adjustment range for fine adjustment.

[0062] In one embodiment, in step S40, adjusting the position of at least one of the first spindle 4 and the second spindle 5 on the XY plane specifically includes:

[0063] Adjust the position of at least one of the first spindle 4 and the second spindle 5 in the X direction; and / or adjust the position of at least one of the first spindle 4 and the second spindle 5 in the Y direction.

[0064] When adjusting the position of at least one of the first spindle 4 and the second spindle 5 in the X direction, the first spindle 4 remains stationary, and only the second spindle 5 moves. Alternatively, the second spindle 5 remains stationary, and only the first spindle 4 moves. Alternatively, both the first spindle 4 and the second spindle 5 move.

[0065] When adjusting the position of at least one of the first spindle 4 and the second spindle 5 in the Y direction, the first spindle 4 remains stationary and only the second spindle 5 moves. Alternatively, the second spindle 5 remains stationary and only the first spindle 4 moves. Alternatively, both the first spindle 4 and the second spindle 5 move.

[0066] By fine-tuning the positions of the first spindle 4 and the second spindle 5 in the X direction and the Y direction respectively, the adjustment on the XY plane is decomposed and achieved through adjustment in the X direction and the Y direction respectively, which can improve the accuracy and reduce the errors that may be caused by the manufacture or assembly of the workpiece, realize high-precision adjustment of the first spindle 4 and the second spindle 5, and improve the reliability of the panel processing.

[0067] Furthermore, through fine-tuning, the X-axis center distances between the Z1 and Z2 axes, the X-axis center distances between the Z3 and Z4 axes, and the X-axis center distances between the Z5 and Z6 axes can be adjusted to be equal, and the multiple spindles of the multi-spindle drilling machine are aligned in the Y direction. This ensures that the machining holes on each small PCB board are positioned in the same position, reducing the possibility of PCB board scrapping due to misaligned machining holes.

[0068] In one embodiment, the difference includes a first difference in the X direction and a second difference in the Y direction. After obtaining the difference between the target spacing and the actual spacing, the difference is decomposed. After shifting the first difference in the X direction and the second difference in the Y direction, the difference between the first principal axis and the second principal axis is reduced so that the target spacing and the actual spacing are equal. The difference should be the absolute value of the difference between the target spacing and the actual spacing.

[0069] It is understandable that when the first difference is zero, only the position of at least one of the first spindle 4 and the second spindle 5 needs to be adjusted in the X direction. When the second difference is zero, only the position of at least one of the first spindle 4 and the second spindle 5 needs to be adjusted in the Y direction.

[0070] In the X-direction, at least one of the first spindle 4 and the second spindle 5 moves, and the sum of the adjustment distances of the first spindle 4 and the second spindle 5 is equal to the first difference. If the first spindle 4 remains stationary and only the second spindle 5 moves, the adjustment distance of the first spindle 4 is zero, and the adjustment distance of the second spindle 5 is equal to the first difference. If the second spindle 5 remains stationary and only the first spindle 4 moves, the adjustment distance of the second spindle 5 is zero, and the adjustment distance of the first spindle 4 is equal to the first difference. If both the first spindle 4 and the second spindle 5 move, the adjustment distances of the first spindle 4 and the second spindle 5 are both greater than zero and less than the first difference.

[0071] In the Y direction, at least one of the first spindle 4 and the second spindle 5 moves, and the sum of the adjustment distances of the first spindle 4 and the second spindle 5 is equal to the second difference. If the first spindle 4 remains stationary and only the second spindle 5 moves, the adjustment distance of the first spindle 4 is zero, and the adjustment distance of the second spindle 5 is equal to the second difference. If the second spindle 5 remains stationary and only the first spindle 4 moves, the adjustment distance of the second spindle 5 is zero, and the adjustment distance of the first spindle 4 is equal to the second difference. If both the first spindle 4 and the second spindle 5 move, the adjustment distances of the first spindle 4 and the second spindle 5 are both greater than zero and less than the second difference.

[0072] By moving in the X and Y directions respectively, the gap between the target spacing and the actual spacing is reduced until the preset difference requirement is met, achieving high-precision adjustment requirements.

[0073] In one embodiment, a method for obtaining the first difference includes:

[0074] The target distance between the first spindle 4 and the second spindle 5 in the X direction is set to a first target distance a1.

[0075] The actual distance between the first main axis 4 and the second main axis 5 in the X direction is measured as a first actual distance, and the difference between the first target distance a1 and the first actual distance is a first difference.

[0076] In one embodiment, a method for obtaining the second difference includes:

[0077] Set the target distance between the first spindle 4 and the second spindle 5 in the Y direction to be the second target distance a2;

[0078] The actual distance between the first main axis 4 and the second main axis 5 in the Y direction is measured as the second actual distance; the difference between the second target distance a2 and the second actual distance is the second difference.

[0079] By decomposing the target spacing between the first spindle 4 and the second spindle 5 into a first target spacing in the X direction and a second target spacing in the Y direction, during high-precision adjustment, the position of at least one of the first spindle 4 and the second spindle 5 in the X direction is adjusted based on the first difference, and the position of at least one of the first spindle 4 and the second spindle 5 in the Y direction is adjusted based on the second difference. This achieves high-precision adjustment between the first spindle 4 and the second spindle 5, thereby ensuring that the spacing between the corresponding first spindle 4 and the second spindle 5 on any PCB board is equal. In the multi-spindle drilling machine shown in FIG5 , the multiple spindles are located on the same straight line in the Y direction, and a2 is zero.

[0080] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An adjustment device, characterized in that: It includes an adjustment part, a first sleeve and a second sleeve, wherein the first sleeve is used to be sleeved on the outside of a first spindle of a multi-axis drilling machine, and the second sleeve is used to be sleeved on the outside of a second spindle of the multi-axis drilling machine. The adjustment part can drive at least one of the first sleeve and the second sleeve to move, thereby driving at least one of the first spindle and the second spindle to move.

2. The adjustment device according to claim 1, characterized in that The adjusting portion includes a first adjusting portion and a second adjusting portion, wherein the first adjusting portion is used to adjust the position of the first spindle on the XY plane, and the second adjusting portion is used to adjust the position of the second spindle on the XY plane.

3. The adjustment device according to claim 2, characterized in that The first adjustment part includes a first movable member and a first adjustment member; the first movable member is connected to the first sleeve, and the first adjustment member is connected to the first movable member, and the first movable member can be driven to move by the first adjustment member, so that the first spindle moves along with the first sleeve in the XY plane; The second adjustment part includes a second movable part and a second adjustment part, the second movable part is connected to the second sleeve, and the second adjustment part is connected to the second movable part. The second movable part can be driven to move by the second adjustment part, so that the second spindle moves with the second sleeve in the XY plane.

4. The adjustment device according to claim 3, characterized in that The first adjusting portion further includes a first fixing member, the first adjusting member includes a first thread segment and a second thread segment, the first thread segment is threadedly connected to the first movable member, and the second thread segment is threadedly connected to the first fixing member; The second adjustment portion further includes a second fixing member, the second adjustment member includes a third thread segment and a fourth thread segment, the third thread segment is threadedly connected to the second movable member, and the fourth thread segment is threadedly connected to the second fixing member.

5. The adjustment device according to claim 4, characterized in that The pitch of the first thread segment is different from the pitch of the second thread segment; The pitch of the third thread segment is different from the pitch of the fourth thread segment.

6. The adjustment device according to claim 4, characterized in that The adjustment device also includes a first mounting seat and a second mounting seat; The first fixing member is arranged on the first mounting seat, the first mounting seat has a first inner cavity, and the first sleeve and the first inner cavity are in clearance fit; The second fixing member is arranged on the second mounting seat, the second mounting seat has a second inner cavity, and the second shaft sleeve and the second inner cavity are clearance-matched.

7. The adjustment device according to claim 6, characterized in that The first sleeve is provided with a first notch, the first mounting seat is provided with a first accommodating cavity, the first notch is communicated with the first accommodating cavity, the first movable member is arranged in the first accommodating cavity, and the first movable member is clamped in the first notch; The second sleeve is provided with a second notch, the second mounting seat is provided with a second accommodating cavity, the second notch is communicated with the second accommodating cavity, the second movable member is arranged in the second accommodating cavity, and the second movable member is clamped in the second notch.

8. The adjustment device according to claim 4, characterized in that The first adjustment part further includes at least one first guide rod, one end of the first guide rod is connected to the first movable member through a flat round head screw, and the other end of the first guide rod is inserted into the first fixing member; The second adjustment portion further includes at least one second guide rod, one end of the second guide rod is connected to the second movable member through a flat round head screw, and the other end of the second guide rod is inserted into the second fixing member.

9. The adjustment device according to claim 2, characterized in that: The first main shaft and the first sleeve are clearance-matched, and a first air film is provided between the outer circumference of the first main shaft and the inner circumference of the first sleeve; The second main shaft and the second sleeve are clearance-matched, and a second air film is provided between the outer circumference of the second main shaft and the inner circumference of the second sleeve.

10. The adjustment device according to claim 2, characterized in that At least two first adjustment parts are provided, one of which is used to adjust the position of the first main axis in the X direction, and the other first adjustment part is used to adjust the position of the first main axis in the Y direction; At least two second adjustment parts are provided, wherein one of the second adjustment parts is used to adjust the position of the second main axis in the X direction, and the other second adjustment part is used to adjust the position of the second main axis in the Y direction.

11. A multi-axis drilling machine, characterized in that: It comprises the adjustment device according to any one of claims 1 to 10, a working platform and at least one spindle assembly, wherein the adjustment device is arranged on the spindle assembly, the spindle assembly is arranged above the working platform, and each of the spindle assemblies comprises at least the first spindle and the second spindle.

12. The multi-axis drilling machine according to claim 11, characterized in that: The multi-axis drilling machine also includes a base plate, a linear motor, a mounting plate and a suspension rod. The base plate is fixedly mounted on the drilling machine body, the first mounting seat or the second mounting seat is mounted on the corresponding base plate, the linear motor is connected between the base plate and the mounting plate, one end of the suspension rod is connected to the mounting plate, and the other end of the suspension rod is connected to the first spindle or the second spindle.

13. The multi-axis drilling machine according to claim 11, characterized in that: The multi-axis drilling machine is used for processing PCB boards.

14. A method for adjusting a multi-axis drilling machine, characterized in that: Used for adjusting the multi-spindle drilling machine according to any one of claims 11 to 13; include: Setting a target distance between the first spindle and the second spindle on the XY plane; wherein the first spindle and the second spindle are used to process the same plate, and the XY plane is defined with the working platform as a reference; driving at least one of the first spindle and the second spindle to move; measuring an actual distance between the first main axis and the second main axis; Obtaining a difference between the target spacing and the actual spacing; Based on the difference, a position of at least one of the first spindle and the second spindle is adjusted on the XY plane until a difference between the target spacing and the actual spacing satisfies a preset difference.

15. The adjustment method of a multi-axis drilling machine according to claim 14, characterized in that: The preset difference value is zero.

16. The method for adjusting a multi-axis drilling machine according to claim 14, wherein: The adjusting the position of at least one of the first main axis and the second main axis on the XY plane comprises: Adjusting the position of at least one of the first spindle and the second spindle in the X direction; and / or, The position of at least one of the first main axis and the second main axis is adjusted in the Y direction.

17. The method for adjusting a multi-axis drilling machine according to claim 16, wherein: The difference includes a first difference in the X direction and a second difference in the Y direction; In the X direction, the sum of the adjustment distance of the first main axis and the adjustment distance of the second main axis is equal to the first difference; In the Y direction, the sum of the adjustment distance of the first main axis and the adjustment distance of the second main axis is equal to the second difference.

18. The method for adjusting a multi-axis drilling machine according to claim 17, wherein: The method for obtaining the first difference includes: Set the target spacing between the first main axis and the second main axis in the X direction as a first target spacing; An actual distance between the first main axis and the second main axis in the X direction is measured as a first actual distance; A difference between the first target distance and the first actual distance is the first difference.

19. The method for adjusting a multi-axis drilling machine according to claim 17, wherein: The method for obtaining the second difference includes: Set the target spacing between the first main axis and the second main axis in the Y direction as a second target spacing; An actual distance between the first main axis and the second main axis in the Y direction is measured as a second actual distance; A difference between the second target distance and the second actual distance is the second difference.

Images