Main shaft assembly and PCB processing equipment

Abstract

The utility model belongs to the technical field of PCB processing equipment, and particularly relates to a main shaft assembly and PCB processing equipment. The spindle assembly comprises a spindle, a spindle clamp and an adjusting assembly, the spindle clamp is used for being installed on the cross beam, an inner cavity is formed in the spindle clamp, and the spindle penetrates through the inner cavity; the adjusting assembly comprises a movable part, a fixed part and an adjusting part, the fixed part is installed on the main shaft clamp, the movable part is connected with the main shaft, one end of the adjusting part is rotatably connected to the fixed part, and the other end of the adjusting part can drive the movable part to move by rotating the adjusting part so as to drive the main shaft to move. The purpose of driving the main shafts to move is achieved by rotating the adjusting piece and driving the movable piece to move through the adjusting piece, the moving distance of the movable piece can be accurately adjusted by controlling the rotating angle of the adjusting piece, the adjusting precision of the main shafts is improved, the distance between the multiple main shafts meets the requirement, dislocation of machining holes in a PCB is reduced, and scrap is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of PCB processing equipment, especially relates to a main shaft assembly and PCB processing equipment. BACKGROUND

[0002] In the field of PCB drilling processing, PCB drilling machine is needed to drill holes on PCB. According to different purposes, sizes and functions, each PCB is divided into several regions with the same size, and the number of holes to be processed and the hole arrangement in each region are the same. PCB drilling machine usually uses two or more main shafts to drill holes on all the regions to be processed on a PCB.

[0003] However, there are manufacturing errors in the main shaft and its mounting structure, and there are assembly errors during assembly. If only relying on assembly tools and assembly process, the machining accuracy of the main shaft cannot be guaranteed, and the distance between two or more main shafts used for processing the same PCB cannot be guaranteed, resulting in low accuracy and misalignment of the holes in different regions, affecting the quality of the PCB. INNOVATION

[0004] The utility model solves the technical problem that the machining accuracy of the existing main shaft cannot be guaranteed, leading to misalignment of the holes in different regions, and provides a main shaft assembly and PCB processing equipment.

[0005] To solve the above technical problems, on the one hand, the utility model embodiment provides a main shaft assembly for processing PCB, which comprises a main shaft, a main shaft clamp and an adjusting assembly, the main shaft clamp is provided with an inner cavity, and the main shaft is arranged in the inner cavity.

[0006] The adjusting assembly comprises a movable part, a fixed part and an adjusting part, the fixed part is installed on the main shaft clamp, the movable part is arranged on one side of the fixed part facing the main shaft clamp and connected with the main shaft, one end of the adjusting part is rotatably connected with the fixed part, by rotating the adjusting part, the other end of the adjusting part can drive the movable part to move, so as to drive the main shaft to move, and then adjust the position of the main shaft.

[0007] Optionally, the other end of the adjusting part is threadedly connected with the movable part.

[0008] Optionally, the main shaft assembly is installed on the cross beam of the PCB processing equipment, the main shaft clamp is used for installing on the cross beam, the main shaft comprises a main shaft body and a flange, the flange is arranged around the outer circumferential surface of the main shaft body and protrudes away from the central axis of the main shaft body, the main shaft body is arranged in the inner cavity, and the movable part is connected with the main shaft body through the flange.

[0009] The flange has a locking state and an unlocking state, when the flange is in the locking state, the flange is relatively fixed with the spindle clamp, when the flange is in the unlocking state, the adjusting part can drive the spindle body to move.

[0010] Optionally, the spindle body and the flange are integrated.

[0011] Optionally, the flange comprises a first flange plate and a second flange plate, the first flange plate and the second flange plate are oppositely arranged around the outer circumferential surface of the spindle body.

[0012] The first flange plate is provided with a first groove, and the second flange plate is provided with a second groove, the first flange plate can be connected with the second flange plate, so that the first groove and the second groove form a spindle hole, and the spindle body is arranged in the spindle hole and tightly matched with the flange.

[0013] Optionally, in the axial direction of the spindle, the first flange is detachably connected with the spindle clamp, and the second flange is detachably connected with the spindle clamp.

[0014] Optionally, the first flange plate comprises a first body part, a first connecting part and a second connecting part, the first groove is arranged on the first body part, and the first body part is connected between the first connecting part and the second connecting part.

[0015] The second flange plate comprises a second body part, a third connecting part and a fourth connecting part, the second groove is arranged on the second body part, and the second body part is connected between the third connecting part and the fourth connecting part.

[0016] The first connecting part and the third connecting part are detachably connected, and the second connecting part and the fourth connecting part are detachably connected.

[0017] Optionally, the movable part comprises a movable part body and a tongue part connected to the movable part body, the flange is provided with a limiting groove, and one end of the tongue part away from the movable part body is arranged in the limiting groove.

[0018] Optionally, the adjusting assembly comprises a first adjusting assembly and a second adjusting assembly, the fixed part of the first adjusting assembly and the fixed part of the second adjusting assembly are both mounted on the spindle clamp, and the movable part of the first adjusting assembly and the movable part of the second adjusting assembly are both connected with the spindle.

[0019] The adjusting member of the first adjusting component is used to drive the main shaft to move along a first direction, and the adjusting member of the second adjusting component is used to drive the main shaft to move along a second direction, wherein the first direction and the second direction intersect.

[0020] Optionally, the limiting groove includes a first limiting groove and a second limiting groove, the tongue of the first adjusting component is disposed in the first limiting groove, and the tongue of the second adjusting component is disposed in the second limiting groove;

[0021] The tongue of the first adjusting component can slide along the first limiting groove when the main shaft moves in the second direction, and the tongue of the second adjusting component can slide along the second limiting groove when the main shaft moves in the first direction.

[0022] Optionally, the spindle clamp includes a base plate and a mounting base, the mounting base is mounted on the base plate, and the inner cavity extends through the mounting base along the axial direction of the spindle;

[0023] The two ends of the spindle protrude from the mounting base, and the flange is detachably connected to the mounting base.

[0024] Optionally, the mounting base includes a first base body and a second base body, the first base body is provided with a third groove, the second base body is provided with a fourth groove, and the first base body can be connected to the second base body so that the third groove and the fourth groove surround and form the inner cavity;

[0025] The first seat and the base plate are an integral structure.

[0026] Optionally, the mounting base is provided with a receiving groove, the movable member is disposed in the receiving groove, and the adjusting member can drive the movable member to move in the receiving groove.

[0027] Optionally, the adjusting member includes a first threaded section and a second threaded section, the first threaded section being threadedly connected to the movable member, and the second threaded section being threadedly connected to the fixed member; the pitch of the first threaded section and the pitch of the second threaded section are different; or,

[0028] The adjusting component includes a first connecting segment and a second connecting segment connected to each other. The first connecting segment is threaded to the movable component, and the second connecting segment is rotatable relative to the fixed component. The adjusting component also includes a limiting component connected to the second connecting segment. The limiting component is used to restrict the relative movement of the second connecting segment and the fixed component in the moving direction of the movable component.

[0029] On the other hand, this utility model embodiment provides a PCB processing equipment, including a machine tool, a crossbeam and a plurality of spindle assemblies as described above. The crossbeam is disposed on the machine tool, and a plurality of spindle assemblies are disposed and spaced apart along the crossbeam. At least two of the spindle assemblies are used to process the same PCB.

[0030] The spindle assembly provided in this embodiment allows for precise adjustment of the spindle position. By turning the adjusting component, a movable component moves, thus moving the spindle along with the spindle. Controlling the rotation of the adjusting component precisely adjusts the distance the movable component moves, thereby precisely adjusting the spindle's movement distance. This improves the spindle adjustment accuracy of the PCB processing equipment, ensuring the spacing between multiple spindles meets requirements, reducing misalignment of machining holes on the PCB, and minimizing PCB scrap. Furthermore, the spindle adjustment process is simple and quick, ensuring accuracy while improving adjustment efficiency. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of a spindle assembly provided in an embodiment of the present invention;

[0032] Figure 2 This is an exploded view of a spindle assembly provided in an embodiment of the present invention;

[0033] Figure 3 This is a cross-sectional schematic diagram of a spindle assembly provided in an embodiment of the present invention;

[0034] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0035] Figure 5 This is a schematic diagram of a spindle provided in another embodiment of the present invention.

[0036] The reference numerals in the accompanying drawings are as follows:

[0037] 1. Spindle; 11. Spindle body; 12. Flange; 121. First flange plate; 1211. First main body; 1212. First connecting part; 1213. Second connecting part; 122. Second flange plate; 1221. Second main body; 1222. Third connecting part; 1223. Fourth connecting part; 123. Limiting groove; 124. First connecting hole;

[0038] 2. Spindle clamp; 21. Base plate; 22. Mounting base; 221. First base body; 222. Second base body; 223. Inner cavity; 224. Receiving groove; 225. Second connecting hole;

[0039] 3. Adjustment component; 31. Movable part; 311. Main body of movable part; 312. Tongue; 32. Fixing part; 33. Adjustment component; 331. First connecting section; 332. Second connecting section; 34. Guide component; 35. Limiting component; 351. First limiting component; 352. Second limiting component;

[0040] a) First direction; b) Second direction. Detailed Implementation

[0041] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0042] like Figures 1 to 4 As shown in the figure, an embodiment of the present invention provides a spindle assembly for processing PCBs. The spindle assembly includes a spindle 1, a spindle clamp 2, and an adjustment component 3. The spindle clamp 2 is provided with an inner cavity 223, and the spindle 1 passes through the inner cavity 223 with a clearance fit. The spindle 1 can process the PCB. The PCB processing equipment can be a drilling machine or a drilling and routing machine.

[0043] The adjustment assembly 3 includes a movable part 31, a fixed part 32, and an adjustment part 33. The fixed part 32 is mounted on the spindle clamp 2. The movable part 31 is located on the side of the fixed part 32 facing the spindle clamp 2 and is connected to the spindle 1. One end of the adjustment part 33 is rotatably connected to the fixed part 32 and can rotate relative to the fixed part 32. The other end of the adjustment part 33 is connected to the movable part 31. When adjusting the position of the spindle 1, by rotating the adjustment part 33, the other end of the adjustment part 33 can drive the movable part 31 to move back and forth, thereby driving the spindle 1 connected to the movable part 31 to move, thus realizing the adjustment of the position of the spindle 1.

[0044] In this embodiment, an adjusting member 33 is connected between the fixed member 32 and the movable member 31. When the position of the spindle 1 needs to be finely adjusted, the adjusting member 33 is turned to rotate, causing the movable member 31 to move in one direction, thereby achieving the purpose of moving the spindle 1 together in one direction. By controlling the degree of rotation of the adjusting member 33, the distance of movement of the movable member 31 can be precisely adjusted, thereby precisely adjusting the movement distance of the spindle 1. This improves the adjustment accuracy of the spindle 1 of the PCB processing equipment, ensuring that the spacing of multiple spindles 1 meets the requirements, reducing the misalignment of processing holes on the PCB, and reducing PCB scrap. Furthermore, the adjustment process using the adjusting member 33 is simple and quick, ensuring adjustment accuracy while also improving the adjustment efficiency of the spindle 1.

[0045] In one embodiment, the other end of the adjusting member 33 is threadedly connected to the movable member 31. The movable member 31 can move in one direction through the threaded engagement between the adjusting member 33 and the movable member 31. The adjustment process can be completed through only one threaded pair. Furthermore, the adjusting member 33 is rotatably connected to the fixed member 32. The adjusting member 33 and the movable member 31 are threadedly connected, which makes the installation of the adjusting member 33 simple, easy, and improves the assembly efficiency.

[0046] In one embodiment, the spindle assembly is applied to a PCB processing equipment. The spindle clamp 2 is mounted on the crossbeam of the PCB processing equipment. The spindle clamp 2 can be connected to the crossbeam of the PCB processing equipment via a driving component such as a linear motor or a lead screw assembly. For example, when connected via a linear motor, the mover of the linear motor is mounted on the spindle clamp 2, and the stator of the linear motor is mounted on the crossbeam. The spindle clamp 2 can move up and down relative to the crossbeam, thereby driving the spindle 1 to move up and down, so that the spindle 1 can move closer to or further away from the PCB in the vertical direction, thereby realizing the processing of the PCB.

[0047] Furthermore, a linear guide rail can be installed between the spindle clamp 2 and the crossbeam to guide the movement of the spindle clamp 2 in the vertical direction.

[0048] In one embodiment, such as Figure 2 , Figure 3 As shown, the spindle 1 includes a spindle body 11 and a flange 12. The flange 12 is arranged around the outer circumference of the spindle body 11 and protrudes in a direction away from the central axis of the spindle body 11. The flange 12 is approximately annularly surrounding the spindle body 11. The spindle body 11 passes through the inner cavity 223. In PCB processing equipment, cutting tools or other processing tools are mounted on the spindle body 11, and the cutting tools are driven to rotate at high speed to complete processing operations such as drilling, milling, and cutting. The movable part 31 is connected to the spindle body 11 through the flange 12. The flange 12 has a locked state and an unlocked state. When the flange 12 is in the locked state, the flange 12 is relatively fixed to the spindle clamp 2, and the flange 12 serves to connect the spindle body 11 and the movable part 31. When the flange 12 is in the unlocked state, when the adjusting part 33 moves the movable part 31, the flange 12 can move the spindle body 11, thereby adjusting the position of the spindle body 11 in the inner cavity 223.

[0049] During assembly, the spindle body 11 is first inserted into the inner cavity 223 of the spindle clamp 2. Since the spindle body 11 and the inner cavity 223 are in clearance fit, the spindle body 11 can pass through the inner cavity 223 relatively easily, while ensuring a certain amount of room for movement, which facilitates subsequent position adjustment. After the adjustment assembly 3 has adjusted the position of the spindle body 11, the flange 12 is connected to the spindle clamp 2.

[0050] In a specific connection method, such as using bolts, the flange 12 has at least one first connecting hole 124, and the spindle clamp 2 has at least one second connecting hole 225. The first connecting hole 124 and the second connecting hole 225 are correspondingly arranged. After the position of the spindle 1 is adjusted by the adjusting component 3, the flange 12 is firmly fixed to the spindle clamp 2 by passing the bolts sequentially through the first connecting hole 124 on the flange 12 and the corresponding second connecting hole 225 on the spindle clamp 2. In this way, the spindle 1 establishes a stable connection with the spindle clamp 2 through the flange 12, thereby locking the position of the spindle 1 after adjustment. When it is necessary to readjust the position of the spindle 1, the bolts connecting the first connecting hole 124 and the second connecting hole 225 are loosened, so that the flange 12 is in the unlocked state, and the position of the spindle 1 can be readjusted by the adjusting component 3.

[0051] The spindle body 11 and the flange 12 can be an integral structure or a separate structure, neither of which affects the assembly connection of the spindle 1.

[0052] In one embodiment, such as Figure 2 As shown, the flange 12 includes a first flange plate 121 and a second flange plate 122. The first flange plate 121 and the second flange plate 122 are arranged opposite to each other around the outer peripheral surface of the main shaft body 11, and the main shaft body 11 is sandwiched between the first flange plate 121 and the second flange plate 122.

[0053] A first flange plate 121 has a first groove, and a second flange plate 122 has a second groove. The first flange plate 121 can be connected to the second flange plate 122 so that the first groove and the second groove together form a spindle hole. The spindle body 11 is disposed in the spindle hole and is tightly fitted with the flange 12. When the first flange plate 121 and the second flange plate 122 are connected, the spindle body 11 is tightly fitted with the spindle hole formed by the first groove and the second groove, so that the spindle body 11 is in a precise position in the spindle hole, which can effectively limit the minute radial and axial displacement of the spindle body 11.

[0054] The connection structure of the first flange plate 121 and the second flange plate 122 facilitates the installation and removal of the flange 12 on the spindle body 11. During installation, the spindle body 11 is first placed into the first groove or the second groove, and then the first flange plate 121 and the second flange plate 122 are connected. The operation is relatively simple and can flexibly adapt to spindles 1 of different specifications.

[0055] When the spindle 1 needs maintenance or replacement, the spindle body 11 can be easily removed by simply disconnecting the connection between the first flange plate 121 and the second flange plate 122, which reduces the difficulty and time cost of maintenance.

[0056] The first groove is an arc-shaped groove, and the second groove is an arc-shaped groove. When the first flange plate 121 and the second flange plate 122 are connected, the first groove fits against the outer peripheral surface of the main shaft body 11, and the second groove fits against the outer peripheral surface of the main shaft body 11. Preferably, the first groove is a semi-circular groove, and the second groove is a semi-circular groove.

[0057] In one embodiment, along the axial direction of the spindle 1, a first flange plate 121 is detachably connected to the spindle clamp 2, and a second flange plate 122 is detachably connected to the spindle clamp 2. That is, when the flange 12 is in the locked state, the first flange plate 121 and the second flange plate 122 are fixedly mounted on the spindle clamp 2. When the flange 12 is in the unlocked state, the first flange plate 121 and the second flange plate 122 can be removed from the spindle clamp 2, allowing the movable component 31 to drive the spindle 1 to move via the flange 12.

[0058] In one embodiment, such as Figure 2 As shown, the first flange plate 121 includes a first main body portion 1211, a first connecting portion 1212, and a second connecting portion 1213. A first groove is disposed on the first main body portion 1211, and the first main body portion 1211 is connected between the first connecting portion 1212 and the second connecting portion 1213. The second flange plate 122 includes a second main body portion 1221, a third connecting portion 1222, and a fourth connecting portion 1223. A second groove is disposed on the second main body portion 1221, and the second main body portion 1221 is connected between the third connecting portion 1222 and the fourth connecting portion 1223. The first main body 1211 and the second main body 1221 are arranged opposite each other in the radial direction of the spindle body 11. The first main body 1211 and the second main body 1221 cooperate to form a spindle hole. The first connecting part 1212 is detachably connected to the third connecting part 1222, and the second connecting part 1213 is detachably connected to the fourth connecting part 1223, so that the first flange plate 121 and the second flange plate 122 are tightly connected to form a whole, which together support and fix the spindle body 11.

[0059] The first connecting part 1212 and the third connecting part 1222 can be connected using bolts, as can the second connecting part 1213 and the fourth connecting part 1223. When using bolts, the bolts are passed through the corresponding bolt holes on the first connecting part 1212 and the third connecting part 1222, and then the nuts are tightened. The same operation is performed on the second connecting part 1213 and the fourth connecting part 1223. As the nuts are tightened, the distance between the first flange plate 121 and the second flange plate 122 gradually decreases, the first groove and the second groove gradually align, and the spindle body 11 is firmly clamped in the spindle hole, achieving a tight fit between the spindle 1 and the flange 12.

[0060] In another embodiment, such as Figure 5As shown, the spindle body 11 and flange 12 are an integral structure. The spindle body 11 and flange 12 are formed into an inseparable integral component through integral machining or casting. During the high-speed rotation of the spindle 1, there will be no force loss or local stress concentration between the spindle body 11 and flange 12 due to loosening of the connecting parts or the presence of the connecting interface. This allows the spindle 1 to withstand external forces more stably, better ensures the dynamic balance of the spindle 1, and helps to improve the machining accuracy of the spindle 1.

[0061] In one embodiment, such as Figure 4 As shown, the movable component 31 includes a movable component body 311 and a tongue 312 connected to the movable component body 311. A limiting groove 123 is provided on the flange 12, and the end of the tongue 312 away from the movable component body 311 is disposed in the limiting groove 123. When the spindle body 11 is inserted into the inner cavity 223, the flange 12 can abut against the spindle clamp 2, and the tongue 312 enters the limiting groove 123. Through the cooperation between the tongue 312 and the limiting groove 123, the movable component 31 is connected to the spindle 1. When the adjusting component 33 drives the movable component 31 to move, the tongue 312 can drive the spindle 1 to move together.

[0062] The limiting groove 123 is located on the side of the flange 12 near the adjustment mechanism.

[0063] Preferably, an insulating element is embedded in the flange 12, and a limiting groove 123 is provided on the insulating element, so that the flange 12 is insulated from the movable element 31.

[0064] In one embodiment, such as Figure 4 As shown, the adjustment assembly 3 also includes at least one guide member 34, which extends along the moving direction of the movable member 31. One end of the guide member 34 is fixedly connected to one of the fixed member 32 and the movable member 31, and the other end of the guide member 34 is movably connected to the other of the fixed member 32 and the movable member 31. The guide member 34 is used to guide the movement of the movable member 31.

[0065] In this embodiment, one end of the guide member 34 is fixedly connected to the fixing member 32, and the other end of the guide member 34 is movably connected to the movable member 31. The other end of the guide member 34 is clearance-fitted with the movable member 31. When the adjusting member 33 drives the movable member 31 to move, the guide member 34 can guide the movement of the movable member 31 and prevent the movable member 31 from deviating.

[0066] In one embodiment, such as Figure 4 As shown, multiple guide members 34 are provided, so that when the adjusting member 33 is rotated, the movable member 31 cannot be flipped, but can only move along the axial direction of the adjusting member 33. Preferably, two guide members 34 are provided, which can ensure the guiding effect of the movable member 31 and prevent the movable member 31 from flipping.

[0067] In one embodiment, the adjustment assembly 3 includes a first adjustment assembly and a second adjustment assembly. The first and second adjustment assemblies have identical structures, each including a movable component, a fixed component, and an adjustment component. The fixed components of both the first and second adjustment assemblies are mounted on the spindle clamp 2, and the movable components of both are connected to the spindle 1. The adjustment component of the first adjustment assembly drives the spindle 1 to move along a first direction a, and the adjustment component of the second adjustment assembly drives the spindle 1 to move along a second direction b, where the first direction a and the second direction b intersect.

[0068] By setting the first adjustment component and the second adjustment component, the position of the spindle 1 in the first direction a and the second direction b can be adjusted, thereby reducing the error caused by the manufacturing or assembly of the workpiece.

[0069] In one specific embodiment, such as Figure 2 As shown, the first direction 'a' is the X direction, and the second direction 'b' is the Y direction. The first direction 'a' and the second direction 'b' are perpendicular. When adjusting the position of the main shaft 1 in the X direction, rotating the adjusting member of the first adjusting assembly moves the movable member of the first adjusting assembly along the X direction, thereby moving the main shaft 1 in the X direction. When adjusting the position of the main shaft 1 in the Y direction, rotating the adjusting member of the second adjusting assembly moves the movable member of the second adjusting assembly along the Y direction, thereby moving the main shaft 1 in the Y direction.

[0070] It is understandable that when the position of spindle 1 in the X or Y direction does not meet the requirements, adjustment in one direction can be achieved by adjusting the first or second adjustment component. When the position of spindle 1 in both the X and Y directions does not meet the requirements, adjustment at any position in the XY plane can be achieved by using the first and second adjustment components, which improves the adjustment accuracy and has a wider range of applications, reducing the occurrence of low accuracy or misalignment during PCB processing.

[0071] In one embodiment, the limiting groove 123 includes a first limiting groove and a second limiting groove. The tongue of the first adjusting component is disposed in the first limiting groove. When the adjusting member of the first adjusting component is rotated, the movable member of the first adjusting component moves along the first direction a. The tongue of the first adjusting component can drive the main shaft 1 to move along the first direction a through the flange 12, thereby adjusting the position of the main shaft 1 in the first direction a.

[0072] The tongue of the second adjustment component is disposed in the second limiting groove. When the adjusting part of the second adjustment component is rotated, the movable part of the second adjustment component moves along the second direction b. The tongue of the second adjustment component can drive the main shaft 1 to move along the second direction b through the flange 12, thereby adjusting the position of the main shaft 1 in the second direction b.

[0073] The first limiting groove extends in a different direction than the second limiting groove. The first limiting groove extends along the second direction b. When the main shaft 1 moves along the second direction b, the tongue of the first adjusting component can slide along the first limiting groove to prevent the tongue of the first adjusting component from affecting the movement of the main shaft 1 in the second direction b. Furthermore, due to the restriction of the tongue of the first adjusting component by the first limiting groove in the first direction a, the main shaft 1 can only move along the second direction b under the action of the tongue of the second adjusting component, reducing the offset of the main shaft 1 in the first direction a.

[0074] The second limiting groove extends along the first direction a. When the main shaft 1 moves along the first direction a, the tongue of the second adjusting component can slide along the second limiting groove to prevent the tongue of the second adjusting component from affecting the movement of the main shaft 1 in the first direction a. Furthermore, due to the restriction of the tongue of the second adjusting component by the second limiting groove in the second direction b, the main shaft 1 can only move along the first direction a under the drive of the tongue of the first adjusting component, reducing the offset of the main shaft 1 in the second direction b.

[0075] In one embodiment, such as Figure 2 , Figure 3 As shown, the spindle clamp 2 includes a base plate 21 and a mounting base 22. The mounting base 22 is mounted on the base plate 21, and the inner cavity 223 extends through the mounting base 22 along the axial direction of the spindle 1. The spindle 1 is mounted through the mounting base 22. The base plate 21 is mounted on the crossbeam of the PCB processing equipment. The base plate 21 is connected to the crossbeam of the PCB processing equipment through a linear motor. The base plate 21 can move up and down relative to the crossbeam, thereby driving the spindle 1 to move up and down.

[0076] The spindle 1 has mounting bases 22 protruding at both ends, and a second connecting hole 225 is provided on the mounting base 22. The flange 12 is detachably connected to the mounting base 22. The spindle body 11 is located in the inner cavity 223. One end of the spindle body 11 is connected to the flange 12, and the other end of the spindle body 11 can be equipped with cutting tools or other processing tools, such as drill bits, milling cutters, etc., for PCB processing operations.

[0077] The mounting base 22 can be an integral structure or a split structure.

[0078] In one embodiment, such as Figure 2As shown, when the mounting base 22 has a split structure, it includes a first base 221 and a second base 222. The first base 221 is mounted on the base plate 21 and has a third groove. The second base 222 has a fourth groove. The first base 221 can connect to the second base 222, so that the third and fourth grooves enclose and form an inner cavity 223. The fourth groove on the second base 222 corresponds to the third groove on the first base 221. When the first base 221 and the second base 222 are connected, these two grooves together form the inner cavity 223 to accommodate the spindle 1. The connection between the second base 222 and the first base 221 can be achieved through bolt connection, snap-fit ​​connection, or other detachable connection methods. This detachable connection method facilitates the installation of the spindle 1 and subsequent maintenance operations.

[0079] When flange 12 is locked and mounting base 22 is fixedly connected to flange 12, both the first flange plate 121 and the second flange plate 122 are provided with first connecting holes 124, and both the first base body 221 and the second base body 222 are provided with second connecting holes 225. Bolts are passed sequentially through the first connecting holes 124 of the first flange plate 121 and the second connecting holes 225 of the first base body 221 to fix the first base body 221 and the first flange plate 121. Similarly, bolts are passed sequentially through the first connecting holes 124 on the second flange plate 122 and the second connecting holes 225 on the second base body 222 to fix the second base body 222 and the second flange plate 122.

[0080] Preferably, such as Figure 2 As shown, the first seat 221 and the base plate 21 are integral structures. The second seat 222 is connected to the first seat 221, so that the third groove and the fourth groove enclose and form an inner cavity 223. The flange 12 is provided with a first connecting hole 124, and at least one of the first seat 221 and the second seat 222 is provided with a second connecting hole 225. The number of second connecting holes 225 is the same as the number of first connecting holes 124. Bolts are used to sequentially pass through the first connecting holes 124 and the second connecting holes 225 to connect the flange 12 to the first seat 221 and the flange 12 to the second seat 222.

[0081] At this time, the adjustment component 3 is set on the side of the second base 222 away from the first base 221, and the fixing part 32 of the adjustment component 3 is installed on the second base 222. The position of the spindle 1 in one direction can be adjusted by the adjustment component 3.

[0082] In another embodiment not shown, when the mounting base 22 is an integral structure, the mounting base 22 is fixed on the base plate 21, and an inner cavity 223 is provided through it along the axial direction of the main shaft 1. The main shaft body 11 passes through the inner cavity 223 of the mounting base 22. The flange 12 is provided with at least one first connecting hole 124, and the mounting base 22 is provided with at least one second connecting hole 225 on the side surface near the flange 12. The flange 12 and the mounting base 22 are connected by bolts passing through the first connecting hole 124 and the second connecting hole 225 in sequence.

[0083] At this time, the mounting base 22 has a first side and a second side, which are adjacent to each other. A first adjustment component is provided on the first side, and a second adjustment component is provided on the second side. The fixing part 32 of the first adjustment component and the fixing part 32 of the second adjustment component are both installed on the mounting base 22. The position of the spindle 1 on the two-dimensional plane can be adjusted by the first adjustment component and the second adjustment component.

[0084] As an example, the spindle body 11 and flange 12 are an integral structure, and the mounting base 22 is an integral structure; or the spindle body 11 and flange 12 are an integral structure, and the mounting base 22 is a separate structure; or the spindle body 11 and flange 12 are separate structures, and the mounting base 22 is a separate structure; or the spindle body 11 and flange 12 are separate structures, and the mounting base 22 is an integral structure.

[0085] In one embodiment, such as Figure 2 As shown, the mounting base 22 is provided with a receiving groove 224. The movable part 31 is disposed in the receiving groove 224 and located between the fixed part 32 and the mounting base 22. The adjusting part 33 can drive the movable part 31 to move in the receiving groove 224. The receiving groove 224 can limit the movement range of the movable part 31, and at the same time improve the overall compactness of the adjusting mechanism and reduce the overall size.

[0086] Specifically, in the axial direction of the main shaft 1, the receiving groove 224 passes through the mounting seat 22 in the direction of the flange 12, so that when the movable part 31 is assembled, the main body 311 of the movable part is received in the receiving groove 224, and the tongue 312 extends out from the receiving groove 224 and cooperates in the limiting groove 123, thereby realizing the connection between the movable part 31 and the flange 12.

[0087] When the mounting base 22 is a split structure, the receiving groove 224 is provided on the second base body 222. When the mounting base 22 is a one-piece structure, the receiving groove 224 is provided on both the first and second sides of the mounting base 22.

[0088] In an embodiment not shown, the adjusting member 33 includes a first threaded segment and a second threaded segment. The first threaded segment is threadedly connected to the movable member 31, and the second threaded segment is threadedly connected to the fixed member 32. The pitch of the first threaded segment and the pitch of the second threaded segment are different.

[0089] Since the fixed member 32 remains stationary on the mounting base 22, the adjusting member 33 can move relative to the fixed member 32 by rotating it. This causes the movable member 31 to move towards and away from the fixed member 32, and thus, under the connecting action of the movable member 31, it moves the main shaft 1 together. Due to the different pitches, when the adjusting member 33 rotates, the distance the movable member 31 moves is equal to the pitch difference between the first and second thread segments. By adjusting the rotation angle of the adjusting member 33, the distance the movable member 31 moves can be adjusted more precisely, thereby precisely adjusting the movement distance of the main shaft 1.

[0090] In one embodiment, such as Figure 4 As shown, the adjusting component 33 includes a first connecting section 331 and a second connecting section 332 connected to each other. The first connecting section 331 is threadedly connected to the movable component 31, and the second connecting section 332 is rotatable relative to the fixed component 32. The adjusting component 3 also includes a limiting component 35, which is connected to the second connecting section 332. The limiting component 35 is used to restrict the relative movement of the second connecting section 332 and the fixed component 32 in the moving direction of the movable component 31. Under the limiting action of the limiting component 35, the adjusting component 33 can only rotate on its own axis and cannot move in the moving direction of the movable component 31. By rotating the adjusting component 33, the second connecting section 332 rotates relative to the fixed component 32. At the same time, the first connecting section 331 drives the movable component 31 to reciprocate under the action of the thread, thereby driving the spindle 1 to move and realizing the position adjustment of the spindle 1 in the inner cavity 223 of the spindle clamp 2.

[0091] In one embodiment, such as Figure 4As shown, the limiting member 35 includes a first limiting member 351 and a second limiting member 352. The first limiting member 351 and the second limiting member 352 are connected to the two ends of the second connecting section 332. The first limiting member 351 is sleeved on the second connecting section 332 and located between the movable member 31 and the fixed member 32. The first limiting member 351 and the adjusting member 33 are relatively fixed. For example, the first limiting member 351 and the second connecting section 332 of the adjusting member 33 are interference-fitted. When the adjusting member 33 rotates, the first limiting member 351 rotates with the adjusting member 33, and the first limiting member 351 can abut against the fixed member 32 to limit the relative movement of the adjusting member 33 and the fixed member 32. The second limiting member 352 is connected to the end of the second connecting section 332 away from the movable member 31. The second limiting member 352 can abut against the fixed member 32, specifically against the surface of the fixed member 32 on the side away from the movable member 31, to limit the relative movement of the second connecting section 332 and the fixed member 32. The position of the adjusting member 33 is defined by the first limiting member 351 and the second limiting member 352, so that the adjusting member 33 cannot move along the moving direction of the movable member 31 when it is rotated. In a feasible embodiment, the second limiting member 352 and the adjusting member 33 are integral structures.

[0092] The fastener 32 is provided with a mounting hole, the second connecting section 332 passes through the mounting hole, and the first limiting member 351 is provided at the end of the mounting hole near the movable member 31.

[0093] On the other hand, this utility model provides a PCB processing equipment, including a machine tool, a crossbeam, and multiple spindle assemblies as described in the above embodiments. The crossbeam is disposed on the machine tool, and multiple spindle assemblies are disposed at intervals along the crossbeam. At least two spindle assemblies are used to process the same PCB.

[0094] PCB processing equipment can be a drilling machine or a drilling and routing machine.

[0095] In one embodiment, the PCB processing equipment is a multi-axis drilling machine, and the spindle assembly on the drilling machine is capable of drilling PCBs.

[0096] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A spindle assembly, characterized in that, The spindle assembly is used for processing PCBs and includes a spindle, a spindle clamp, and an adjustment assembly. The spindle clamp has an inner cavity, and the spindle passes through the inner cavity. The adjustment assembly includes a movable component, a fixed component, and an adjusting component. The fixed component is mounted on the spindle clamp. The movable component is located on the side of the fixed component facing the spindle clamp and connected to the spindle. One end of the adjusting component is rotatably connected to the fixed component. By rotating the adjusting component, the other end of the adjusting component can drive the movable component to move, thereby driving the spindle to move and adjusting the position of the spindle.

2. The spindle assembly according to claim 1, characterized in that, The other end of the adjusting member is threadedly connected to the movable member.

3. The spindle assembly according to claim 1, characterized in that, The spindle assembly is mounted on the crossbeam of the PCB processing equipment, and the spindle clamp is adapted to connect to the crossbeam; the spindle includes a spindle body and a flange, the flange is arranged around the outer peripheral surface of the spindle body and protrudes in a direction away from the central axis of the spindle body, the spindle body passes through the inner cavity, and the movable part is connected to the spindle body through the flange; The flange has a locked state and an unlocked state. When the flange is in the locked state, the flange and the spindle clamp are fixed relative to each other. When the flange is in the unlocked state, the adjusting member can drive the spindle body to move.

4. The spindle assembly according to claim 3, characterized in that, The main shaft body and the flange are an integral structure.

5. The spindle assembly according to claim 3, characterized in that, The flange includes a first flange plate and a second flange plate, which are arranged opposite to each other around the outer peripheral surface of the main shaft body. The first flange plate is provided with a first groove, and the second flange plate is provided with a second groove. The first flange plate can be connected to the second flange plate so that the first groove and the second groove surround to form a spindle hole. The spindle body is disposed in the spindle hole and is tightly fitted with the flange.

6. The spindle assembly according to claim 5, characterized in that, Along the axial direction of the spindle, the first flange plate is detachably connected to the spindle clamp, and the second flange plate is detachably connected to the spindle clamp.

7. The spindle assembly according to claim 5, characterized in that, The first flange plate includes a first main body, a first connecting part, and a second connecting part. The first groove is disposed on the first main body, and the first main body is connected between the first connecting part and the second connecting part. The second flange plate includes a second main body, a third connecting part and a fourth connecting part, the second groove is disposed on the second main body, and the second main body is connected between the third connecting part and the fourth connecting part; The first connecting part is detachably connected to the third connecting part, and the second connecting part is detachably connected to the fourth connecting part.

8. The spindle assembly according to claim 3, characterized in that, The movable component includes a movable component body and a tongue connected to the movable component body. A limiting groove is provided on the flange, and one end of the tongue away from the movable component body is disposed in the limiting groove.

9. The spindle assembly according to claim 8, characterized in that, The adjustment assembly includes a first adjustment assembly and a second adjustment assembly; the fixing parts of the first adjustment assembly and the second adjustment assembly are both mounted on the spindle clamp, and the movable parts of the first adjustment assembly and the movable parts of the second adjustment assembly are both connected to the spindle; The adjusting member of the first adjusting component is used to drive the main shaft to move along a first direction, and the adjusting member of the second adjusting component is used to drive the main shaft to move along a second direction, wherein the first direction and the second direction intersect.

10. The spindle assembly according to claim 9, characterized in that, The limiting groove includes a first limiting groove and a second limiting groove, the tongue of the first adjusting component is disposed in the first limiting groove, and the tongue of the second adjusting component is disposed in the second limiting groove; The tongue of the first adjusting component can slide along the first limiting groove when the main shaft moves in the second direction, and the tongue of the second adjusting component can slide along the second limiting groove when the main shaft moves in the first direction.

11. The spindle assembly according to any one of claims 3-10, characterized in that, The spindle clamp includes a base plate and a mounting base, the mounting base is mounted on the base plate, and the inner cavity extends through the mounting base along the axial direction of the spindle; The two ends of the spindle protrude from the mounting base, and the flange is detachably connected to the mounting base.

12. The spindle assembly according to claim 11, characterized in that, The mounting base includes a first base body and a second base body. The first base body is provided with a third groove, and the second base body is provided with a fourth groove. The first base body can be connected to the second base body so that the third groove and the fourth groove surround and form the inner cavity. The first seat and the base plate are an integral structure.

13. The spindle assembly according to claim 11, characterized in that, The mounting base is provided with a receiving groove, the movable part is disposed in the receiving groove, and the adjusting part can drive the movable part to move in the receiving groove.

14. The spindle assembly according to claim 1, characterized in that, The adjusting component includes a first threaded section and a second threaded section. The first threaded section is threadedly connected to the movable component, and the second threaded section is threadedly connected to the fixed component. The pitches of the first threaded section and the second threaded section are different. Alternatively... The adjusting component includes a first connecting segment and a second connecting segment connected to each other. The first connecting segment is threaded to the movable component, and the second connecting segment is rotatable relative to the fixed component. The adjusting component also includes a limiting component connected to the second connecting segment. The limiting component is used to restrict the relative movement of the second connecting segment and the fixed component in the moving direction of the movable component.

15. A PCB processing equipment, characterized in that, The machine tool includes a crossbeam and multiple spindle assemblies as described in any one of claims 1-14, wherein the crossbeam is disposed on the machine tool, and multiple spindle assemblies are disposed at intervals along the crossbeam, and at least two spindle assemblies are used to process the same PCB.

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