Multi-hole processing device

Abstract

The invention discloses a multi-hole machining device which comprises a drill bit positioning tool provided with at least one drill bit assembly and at least one adjusting mechanism. The drill bit assembly comprises a drill bit, a universal transmission assembly and a power mechanism used for driving the drill bit to rotate. The adjusting mechanism comprises an adjusting frame, a supporting shaft, an adjusting sliding block and an adjusting nut. The adjusting mechanism is adopted to adjust the position of the drill bit in multiple directions, the position adjusting range on the plane is provided for the drill bit through sliding translation of the fulcrum shaft in the linear groove, and the position adjusting range in the axial direction is further provided for the drill bit through the sliding lead screw structure of the adjusting nut and the fulcrum shaft; therefore, during multi-hole synchronous machining, not only can the relative plane positions of the multiple drill bits be adjusted, but also the relative axial positions of the multiple drill bits can be adjusted, and synchronous machining of holes with different depths is achieved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of machining equipment, and relates to a multi-hole machining device. BACKGROUND

[0002] In the fields of metal processing and woodworking manufacturing, a drilling machine is widely used as a basic hole machining equipment. For small-scale production subjects (such as small workshops, individual workshops or start-ups) with limited funds and single product types, it is not economical to purchase expensive numerical control machining centers. Such users usually rely on traditional drilling machines for machining, but the operation efficiency of a single drill bit is low, and it is difficult to meet the batch production needs of multi-hole workpieces.

[0003] To improve efficiency, the prior art attempts to integrate a multi-drill bit collaborative machining scheme on a traditional drilling machine. For example, Chinese patent CN209140440U proposes a multi-hole multi-direction adjusting and clamping device: a single driving source drives multiple drill bits to rotate synchronously, and a universal adapter and a adapter fixed rod are used to realize horizontal position adjustment of the drill bits. Although this scheme can realize multi-hole synchronous machining, it has the following significant defects: first, depth adjustment is missing, the drill bits are only adjusted in the horizontal position by the adapter fixed rod, and the axial feeding depth of each drill bit cannot be accurately controlled independently. When the workpiece needs to be machined with holes of different depths (such as stepped holes, blind holes or assembly positioning holes), the device is completely unsuitable, forcing the operator to clamp or replace the equipment multiple times, thereby reducing efficiency. Another problem is the lack of positioning accuracy. The drill bits are connected by the adapter fixed rod and are fixed in position by screws. Since the adapter fixed rod has multiple movable directions in the horizontal position adjustment, the drill bits are easily offset during screw tightening, making it difficult to achieve fine positioning.

[0004] Therefore, although the multi-drill bit modification scheme in the prior art aims to improve efficiency, it is difficult to be actually promoted in small-scale production due to the core defects of unadjustable depth and low positioning accuracy. There is an urgent need for a drilling machine improvement scheme that retains the low-cost advantage and has independent depth control capability of multiple drill bits and high-precision rapid positioning. SUMMARY

[0005] The application provides a multi-hole machining device to overcome the deficiencies of the prior art.

[0006] To achieve the above-mentioned purpose, the application adopts the following technical scheme:

[0007] A multi-hole machining device, comprising:

[0008] A drill bit positioning tool, the drill bit positioning tool is provided with at least one drill bit assembly and at least one adjusting mechanism.

[0009] The drill bit assembly comprises a drill bit, a universal transmission assembly, and a power mechanism for driving the drill bit to rotate, two ends of the universal transmission assembly are connected with the drill bit and an output shaft of the power mechanism respectively, and the universal transmission assembly is used for providing a movable range of the drill bit at least in an axial direction of the drill bit and a plane perpendicular to an axial line of the drill bit.

[0010] The adjusting mechanism comprises an adjusting frame, a support shaft, an adjusting slider, and an adjusting nut, one end of the adjusting frame is connected with the drill bit, the support shaft is detachably connected with the adjusting frame, the adjusting nut is threadedly connected with the support shaft, the adjusting nut is axially limitedly connected with the adjusting slider, axial movement of the support shaft is driven by rotation of the adjusting nut, and the drill bit positioning tool is provided with a linear slot for the support shaft to pass through and translate.

[0011] Further, the support shaft is arranged in parallel with the drill bit, and the linear slot is perpendicular to the support shaft.

[0012] Further, the drill bit positioning tool comprises a top plate and a frame, the top plate and the frame are parallel and arranged at a certain distance, the output shaft is arranged on the top plate, the linear slot is arranged on the frame in a linear direction, and the adjusting slider is clamped with the frame and can move in the linear direction.

[0013] Further, an outer periphery of one side of the adjusting nut is provided with a flange, and two ends of the flange are respectively abutted against the adjusting slider and the frame.

[0014] Further, a locking stud is threadedly connected on the adjusting slider, and one end of the locking stud is abutted against an outer wall of the frame.

[0015] Further, a bevel gear is coaxially clamped on one side of the adjusting nut, a steel wire clamping spring is sleeved between the adjusting nut and the bevel gear, straight teeth for meshing with opposite sides of the bevel gear are respectively arranged on long edges parallel to the linear direction on opposite sides of the linear slot, a spring is sleeved on the adjusting nut, and two ends of the spring are respectively abutted against the bevel gear and the adjusting slider.

[0016] Further, the adjusting frame further comprises a sliding rod and a fastening nut, a sliding groove is arranged on the adjusting frame, the sliding rod is coaxially connected with the support shaft, an axial shoulder is radially protruded on one end of the sliding rod, the other end of the sliding rod is threadedly connected with the fastening nut, the sliding rod passes through the sliding groove, and two ends of the adjusting frame are respectively abutted against the axial shoulder and the fastening nut.

[0017] Further, the side support is provided with a threaded rod and a guide rod in parallel, the threaded rod and the guide rod are respectively arranged in the limiting rod, the threaded rod is in threaded connection with the limiting rod, and the limiting rod is arranged in the sliding groove.

[0018] Further, the axis of the limiting rod is parallel to the axis of the sliding rod, and the axis of the threaded rod is parallel to the straight line direction.

[0019] Further, the outer periphery of the support shaft is provided with a limiting plane in the axial direction, and the limiting plane is in abutment with the inner wall of the straight line groove.

[0020] In summary, the present application has the advantages of:

[0021] The present application provides multi-directional position adjustment for the drill bit through the adjusting mechanism, provides a position adjustment range in a plane for the drill bit through the sliding translation of the support shaft in the straight line groove, and further provides a position adjustment range in the axial direction for the drill bit through the sliding screw structure of the adjusting nut and the support shaft, so that when multi-hole synchronous machining is performed, not only the relative plane positions of multiple drill bits can be adjusted, but also the relative axial positions of multiple drill bits can be adjusted, and synchronous machining of holes with different depths is realized. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural schematic view of the drill bit positioning tool of the present application.

[0023] Figure 2 It is a structural schematic view of the bottom perspective view in Figure 1

[0024] Figure 3 It is a structural schematic view of the adjusting mechanism.

[0025] Figure 4 It is a sectional structural schematic view of example 1 in Figure 3

[0026] Figure 5 It is a sectional structural schematic view of example 2 in Figure 3

[0027] Figure 6 It is a structural schematic view of the support shaft.

[0028] ​​​Identified in the figure: 11, top plate; 12, frame; 13, straight slot; 131, straight teeth; 21, sliding sleeve; 22, sliding rod; 23, universal coupling; 24, drill mounting shaft; 31, adjusting frame; 311, connecting part; 312, sliding groove; 32, support shaft; 321, limiting plane; 322, sliding rod; 323, shaft shoulder; 324, fastening nut; 33, adjusting sliding block; 331, locking stud; 34, adjusting nut; 341, flange; 342, bevel gear; 343, spring; 35, limiting rod; 351, side support; 352, threaded rod; 353, guide rod. DETAILED DESCRIPTION

[0029] The advantages and effects of the present application can be easily understood by those skilled in the art from the description of the specific embodiments. The present application can also be implemented or applied in other different embodiments, and various modifications or changes can be made to the details in the description without departing from the spirit of the present application. It should be noted that the embodiments and features in the embodiments can be combined with each other without conflict.

[0030] It should be noted that the drawings provided in the following embodiments only schematically illustrate the basic concept of the present application, and only the components related to the present application are shown in the drawings, not the number, shape and size of the components when actually implemented. The shape, number and ratio of each component can be changed arbitrarily when actually implemented, and the layout of the components can also be more complex.

[0031] All directional indications (such as up, down, left, right, front, back, transverse, longitudinal, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, motion condition, etc. between the components in a certain specific posture, and if the specific posture changes, the directional indications also change accordingly.

[0032] Due to installation errors and other reasons, the parallel relationship referred to in the embodiments of the present application may actually be an approximate parallel relationship, and the vertical relationship may actually be an approximate vertical relationship.

[0033] The embodiment provides a multi-hole machining device, which comprises a workpiece positioning platform and a drill positioning tool. The workpiece positioning platform has a plane for arranging a plurality of clamps. The plurality of clamps can be adapted for fixing workpieces of various specifications. The drill positioning tool is provided with one or more drill assemblies. The drill of each drill assembly is arranged towards the plane of the workpiece positioning platform. A corresponding set or multiple sets of adjusting mechanisms are arranged to adjust the relative positions of the drill assemblies, so as to realize synchronous multi-hole machining.

[0034] Specifically, the workpiece positioning platform is provided with a linear drive assembly, the drill positioning tool is arranged at the telescopic output end of the linear drive assembly, the linear drive assembly drives the drill positioning tool to move close to and away from the workpiece positioning platform, the drill moves towards the plane, and the hole of the workpiece on the workpiece positioning platform is processed, preferably, the plane is arranged at the top of the workpiece positioning platform, the drill positioning tool is located directly above the plane, the linear drive assembly comprises a combination structure of a bracket, a guide rail, a pneumatic cylinder or an oil cylinder or a linear motor, the linear drive assembly can adopt a scheme widely used in the prior art, only the linear telescopic driving function needs to be provided in the embodiment, and thus no more description is made.

[0035] In other embodiments, the relative arrangement of the drill positioning tool and the workpiece positioning platform is not limited to the vertical direction, but can also be arranged horizontally relative to the workpiece positioning platform. Under the driving of the linear drive assembly, the drill positioning tool moves close to and away from the workpiece positioning platform horizontally.

[0036] Referring to FIGS. 1 to 3, Figure 1 and Figure 2 As shown, the drill positioning tool comprises a top plate 11 and a frame 12, the top plate 11 and the frame 12 are arranged in parallel and form a set distance, and the top plate 11 and the frame 12 are fixedly connected through a connecting beam. In the embodiment, the frame 12 is preferably a hollow square frame structure, the drill assembly is arranged at the inner side of the frame 12 and is adjusted in position within the range of the inner side of the frame 12.

[0037] The drill bit assembly comprises a drill bit, a universal transmission assembly and a power mechanism, the universal transmission assembly comprises a sliding sleeve 21, a sliding rod 22, a drill bit mounting shaft 24 and two universal couplings 23, the power mechanism comprises an output shaft arranged at the bottom of the top plate 11, a gear box arranged inside the top plate 11 for transmission, a driving motor arranged at the top of the top plate 11 for connecting with the gear box to provide rotary power, the output shaft is in transmission connection with the gear box at the bottom of the top plate 11, and then the driving motor drives the rotation of the output shaft through the transmission of the gear box; one side shaft end of the sliding sleeve 21 is connected with the output shaft through one of the universal couplings 23, the other side shaft end of the sliding sleeve 21 is formed with a through hole in the axial direction, one side shaft end of the sliding rod 22 is coaxially arranged in the through hole of the sliding sleeve 21, the axial projection section of the sliding rod 22 and the through hole are both adapted polygonal structures, so that the sliding rod 22 and the sliding sleeve 21 cannot rotate relatively, but can slide relatively in the axial direction, the other side shaft end of the sliding rod 22 is connected with the drill bit mounting shaft 24 through the other universal coupling 23, the drill bit mounting shaft 24 is used for coaxially fixing various types of drill bits, the rotation of the output shaft can be transmitted to the drill bit mounting shaft 24 to drive the rotation of the drill bit, and the two universal couplings 23 are arranged to enable the drill bit to rotate under the driving of the output shaft without being coaxial with the output shaft, and the cooperation of the sliding sleeve 21 and the sliding rod 22 further increases the adjustable range of the relative position of the drill bit and the output shaft in the axial direction.

[0038] Preferably, in the embodiment, the axis of the drill bit is kept parallel to the axis of the output shaft, the drill bit is in a vertical posture and moves up and down following the drill bit positioning tool to realize the hole machining of the workpiece.

[0039] Referring to Figure 3 As shown in the figure, the adjusting mechanism comprises an adjusting frame 31, an adjusting sliding block 33 and a support shaft 32, the adjusting frame 31 has a set length, one end of the adjusting frame 31 in the length direction is provided with a connecting part 311, the connecting part 311 is sleeved on the outer periphery of the drill bit mounting shaft 24 and is coaxially connected with the drill bit mounting shaft 24, the connecting part 311 can be in the form of a bearing, a sleeve or the like which can rotate relative to the drill bit mounting shaft 24, the drill bit mounting shaft 24 is positioned and supported by the connecting part 311 and the adjusting frame 31, and rotates under the driving of the driving motor.

[0040] Preferably, the axis of the output shaft and the axis of the drill bit mounting shaft 24 are both arranged in the vertical direction, the length direction of the adjusting frame 31 is arranged in the horizontal direction and is perpendicular to the axis of the drill bit, the adjusting frame 31 moves or rotates in the horizontal direction to adjust the position and angle thereof in the horizontal direction, thereby realizing the position adjustment of the drill bit mounting shaft 24 in the horizontal direction.

[0041] Referring to Figure 1One or more straight edges of the frame 12 are provided with a straight slot 13, which is preferably arranged along a straight line direction, preferably parallel to the direction of the straight edge on the same side, and is arranged along the vertical direction. The adjusting slider 33 is arranged on the radial outer side of the frame 12, which is preferably in the shape of a U-shaped structure and can be made of sheet metal. The adjusting slider 33 and the outer wall of the frame 12 can be connected by clamping or through a guide rail. The adjusting slider 33 can slide relative to the frame 12 along the straight line direction of the straight slot 13. The adjusting slider 33 is provided with a positioning hole for the shaft 32 to pass through along the vertical direction (i.e., the axial direction of the shaft 32 itself). The positioning hole is preferably arranged on the upper and lower parts of the adjusting slider 33. The shaft 32 passes through the positioning hole and the straight slot 13 while maintaining a vertical and parallel posture to the drill bit. The straight line direction of the straight slot 13 is perpendicular to the axial direction of the shaft 32. When the adjusting slider 33 moves, the shaft 32 is simultaneously translated in the straight slot 13.

[0042] The adjusting bracket 31 is arranged below the frame 12. The adjusting bracket 31 is provided with a sliding groove 312 along its length direction, which is arranged along the vertical direction. The lower end of the shaft 32 is provided with a sliding rod 322, which is coaxially connected to the shaft 32. The sliding rod 322 passes through the sliding groove 312 along the vertical direction. When the adjusting bracket 31 moves in the horizontal direction, the sliding rod 322 can move relative to the adjusting bracket 31 in the sliding groove 312. When the position of the shaft 32 relative to the frame 12 is fixed, the movable range and the rotatable range of the adjusting bracket 31 relative to the sliding rod 322 can be adjusted and limited separately.

[0043] Referring to Figure 6 The outer diameter of the sliding rod 322 is smaller than the outer diameter of the shaft 32, so that the connection between the sliding rod 322 and the shaft 32 forms a structure in which the shaft shoulder 323 protrudes radially from the sliding rod 322. The width of the sliding groove 312 is smaller than the diameter of the shaft shoulder 323. When the sliding rod 322 passes through the sliding groove 312, the top of the adjusting bracket 31 abuts against the shaft shoulder 323. The bottom of the sliding rod 322 is provided with a thread. A fastening nut 324 is connected to the bottom of the sliding rod 322 by screwing. When the fastening nut 324 is tightened upwards, the fastening nut 324 and the shaft shoulder 323 abut against the bottom and the top of the adjusting bracket 31 respectively, thereby fixing the adjusting bracket 31 and the shaft 32.

[0044] Further, a gasket is sleeved on the sliding rod 322, and the two ends of the gasket are used to abut against the shaft shoulder 323 and the adjusting bracket 31 respectively, thereby increasing the contact area and enhancing the locking effect.

[0045] The outer periphery of the fulcrum 32 is provided with a limiting plane 321 in the axial direction, which is used to contact and abut the inner wall parallel to the linear direction on the linear groove 13. By setting the width of the linear groove 13 to be smaller than the diameter of the fulcrum 32, and by matching the setting of the limiting plane 321, the radial width of the fulcrum 32 at the limiting plane 321 is slightly smaller than the width of the linear groove 13, so that the fulcrum 32 can be arranged in the linear groove 13, and under the limitation of the inner wall of the linear groove 13 and the limiting plane 321, the rotation of the fulcrum 32 in the linear groove 13 is limited, thereby ensuring the stable linear motion of the fulcrum 32 in the linear groove 13.

[0046] Preferably, the limiting plane 321 is provided with two symmetric limiting planes arranged on both sides of the fulcrum 32 respectively, and the two limiting planes 321 are respectively matched with the inner walls on both sides of the linear groove 13 to ensure the rotation stopping and make the sliding motion of the fulcrum 32 more stable and smooth.

[0047] The outer periphery of the upper side of the fulcrum 32 is also provided with a thread, which is used to coaxially arrange an adjusting nut 34. The adjusting nut 34 is threadedly connected with the fulcrum 32 to form a lead screw structure. The adjusting nut 34 is rotatably connected with the adjusting block 33, and the adjusting block 33 clamps the adjusting nut 34 in the axial direction to limit the axial position of the adjusting nut 34. When the adjusting nut 34 is rotated, the axial movement of the fulcrum 32 can be driven, the height position of the fulcrum 32 can be adjusted, and the height position of the adjusting frame 31 can be adjusted to finally adjust the height position of the drill bit relative to the drill bit positioning tool.

[0048] When multiple drill bits are arranged, corresponding adjusting mechanisms are respectively arranged for the multiple drill bits to independently adjust the height positions of the multiple drill bits relative to the drill bit positioning tool, thereby providing different depth processing during multi-hole synchronous processing.

[0049] Embodiment 1:

[0050] With reference to Figure 4 One side of the adjusting nut 34 is provided with a flange 341 protruding radially, and the adjusting nut 34 is arranged in the positioning hole of the adjusting block 33, so that the flange 341 is abutted on the adjusting block 33 and the frame 12 at both ends of the adjusting nut 34 in the axial direction, thereby limiting the axial position of the adjusting nut 34, so that only the rotating motion of the adjusting nut 34 can be performed.

[0051] Further, the adjusting block 33 is threadedly connected with a locking stud 331, and when the locking stud 331 is screwed inward, the end of the locking stud 331 is abutted on the outer wall of the frame 12 to form a large relative friction, thereby realizing the fixed effect of the adjusting block 33 and the frame 12, and the linear position of the fulcrum 32 and the adjusting frame 31 in the linear direction of the linear groove 13 is locked.

[0052] Embodiment 2:

[0053] Referring to Figure 5 and Figure 6 One side of the adjusting nut 34 is coaxially nested with a bevel gear 342, the adjusting nut 34 is arranged in the positioning hole of the adjusting slider 33, the bevel gear 342 is located between the adjusting slider 33 and the adjusting frame 31, further, the outer periphery of the shaft end of the adjusting nut 34 is matched with the inner periphery of the bevel gear 342, the outer periphery of the adjusting nut 34 is sleeved with a steel wire spring, so that the adjusting nut 34 and the bevel gear 342 are clamped by the steel wire spring, the adjusting nut 34 and the bevel gear 342 can relatively rotate, and a certain axial limiting is provided, so that the two are not easily separated.

[0054] The straight slot 13 is provided with straight teeth 131 on the opposite two sides of the long edges parallel to the straight line direction, the straight teeth 131 are continuously distributed along the straight line direction, and the straight teeth 131 on the two sides are respectively used to form meshing with the opposite two sides of the bevel gear 342, when the bevel gear 342 is downwardly meshed with the two straight teeth 131, the position of the bevel gear 342 along the straight line direction of the straight slot 13 is locked and cannot move, so that the straight line direction of the straight slot 13 is locked.

[0055] Further, the adjusting nut 34 is further sleeved with a spring 343, the two ends of the spring 343 are respectively abutted with the bevel gear 342 and the adjusting slider 33, the spring 343 pushes the bevel gear 342 towards the straight slot 13, when not affected by other external forces, the spring 343 makes the bevel gear 342 mesh with the straight teeth 131 of the straight slot 13, so as to maintain the locking state of the support shaft 32, and at this time, the rotating action of the adjusting nut 34 is not affected, and the axial height position of the support shaft 32 can be adjusted; when the transverse position of the support shaft 32 needs to be adjusted, the adjusting nut 34 is axially pulled to drive the bevel gear 342 to disengage from the straight teeth 131, so that the locking effect is released, and the transverse position adjustment of the support shaft 32 is performed.

[0056] In some embodiments, one drill bit assembly is matched with one adjusting mechanism as a group, one or more drill bit assemblies and adjusting mechanisms are arranged on the drill bit positioning tool, preferably, four drill bit assemblies and adjusting mechanisms are arranged, and are arranged on the four straight edges of the frame 12, so that four drill bits work at the same time, four adjusting mechanisms respectively provide independent transverse position adjustment and height position adjustment for the four drill bits, and synchronous multi-hole machining work of different positions and different depths is realized.

[0057] The adjustment mechanism adjusts the position of the drill bit in three ways: the first way is to adjust the horizontal position of the drill bit when the support shaft 32 moves in the linear direction of the linear slot 13; the second way is to adjust the horizontal position of the drill bit when the support shaft 32 is fixed and the adjustment frame 31 slides or rotates relative to the sliding rod 322; the third way is to adjust the height position of the drill bit when the support shaft 32 moves in the axial direction. During the adjustment of any one way, the other two ways can be kept in the locked state. Specifically, when the first way is adjusted, the locking of the fastening nut 324 provides the locking of the second way, and the self-locking of the adjusting nut 34 on the support shaft 32 provides the locking of the third way; when the second way is adjusted, the locking screw 331 or the bevel gear 342 provides the locking of the first way, and the self-locking of the adjusting nut 34 on the support shaft 32 provides the locking of the third way; when the third way is adjusted, the locking screw 331 or the bevel gear 342 provides the locking of the first way, and the locking of the fastening nut 324 provides the locking of the second way. The three adjustment ways are independently adjusted, the adjustment directions are distinguished, and the control accuracy of the drill bit positioning is effectively improved.

[0058] In some embodiments, in order to further enhance the accuracy of the drill bit position adjustment, an angle limiting component for the adjustment frame 31 is further included. The angle limiting component includes a side bracket 351, a threaded rod 352, a guide rod 353, and a limiting rod 35. The side bracket 351 is fixedly connected to the adjustment slide 33. The threaded rod 352 and the guide rod 353 are clamped to the side bracket 351, and the threaded rod 352 can rotate along its axis. The threaded rod 352 and the guide rod 353 are arranged in parallel. The guide rod 353 and the threaded rod 352 are respectively provided in the limiting rod 35, and the threaded rod 352 and the limiting rod 35 are threadedly connected. Therefore, when the threaded rod 352 is driven to rotate, the limiting rod 35 can be synchronously moved along the axis of the threaded rod 352.

[0059] Preferably, the axis of the limiting rod 35 is arranged in parallel with the axis of the sliding rod 322, and the axis of the threaded rod 352 is arranged in parallel with the linear direction. The limiting rod 35 is provided in the sliding groove 312 of the adjustment frame 31. The sliding rod 322 and the limiting rod 35 are arranged at two points to limit the angle orientation of the adjustment frame 31 relative to the linear direction. When the threaded rod 352 drives the limiting rod 35 to move, the distance and orientation of the limiting rod 35 relative to the sliding rod 322 change, thereby driving the adjustment frame 31 to change the angle orientation relative to the linear direction. When the support shaft 32 and the adjustment slide 33 are in the fixed state in the linear direction, the angle orientation of the adjustment frame 31 can be finely adjusted by operating the threaded rod 352, and the self-locking effect of the sliding thread ensures the stability of the angle orientation of the adjustment frame 31. In this state, the movement of the adjustment frame 31 in other directions can be sufficiently limited, so that the user can only finely adjust the position of the adjustment frame 31 in the length direction of the adjustment frame 31, and the positioning accuracy of the drill bit is greatly improved.

[0060] Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the present application.

Claims

1. A multi-hole processing apparatus, characterized in that, include: A drill bit positioning fixture, wherein the drill bit positioning fixture is provided with at least one drill bit assembly and at least one adjustment mechanism; The drill bit assembly includes a drill bit, a universal joint assembly, and a power mechanism for driving the drill bit to rotate. The two ends of the universal joint assembly are respectively connected to the output shafts of the drill bit and the power mechanism, and are used to provide the drill bit with a range of motion at least in the axial direction of the drill bit and in a plane perpendicular to the axis of the drill bit. The adjustment mechanism includes an adjustment frame (31), a support shaft (32), an adjustment slider (33), and an adjustment nut (34). One end of the adjustment frame (31) is connected to the drill bit. The support shaft (32) is detachably connected to the adjustment frame (31). The adjustment nut (34) is threadedly connected to the support shaft (32). The adjustment nut (34) and the adjustment slider (33) form an axial limiting connection so that the axial movement of the support shaft (32) is driven by the rotation of the adjustment nut (34). The drill bit positioning fixture is provided with a straight groove (13) for the support shaft (32) to pass through and translate.

2. The multi-hole processing device according to claim 1, characterized in that, The support shaft (32) is arranged parallel to the drill bit, and the straight groove (13) is perpendicular to the support shaft (32).

3. The multi-hole processing device according to claim 1, characterized in that, The drill bit positioning fixture includes a top plate (11) and a frame (12). The top plate (11) and the frame (12) are parallel and form a set distance. The output shaft is set on the top plate (11). The straight groove (13) is opened on the frame (12) along a straight direction. The adjusting slider (33) is engaged with the frame (12) and can move along a straight direction.

4. The multi-hole processing apparatus according to claim 3, characterized in that, A flange (341) is provided on the outer periphery of one side shaft end of the adjusting nut (34), and the two ends of the flange (341) abut against the adjusting slider (33) and the frame (12) respectively.

5. The multi-hole processing apparatus according to claim 4, characterized in that, The adjusting slider (33) is threadedly connected to a locking stud (331), one end of which abuts against the outer wall of the frame (12).

6. The multi-hole processing apparatus according to claim 3, characterized in that, A bevel gear (342) is coaxially engaged with one side of the adjusting nut (34). A wire snap ring is sleeved between the adjusting nut (34) and the bevel gear (342). Straight teeth (131) for meshing with the opposite sides of the bevel gear (342) are respectively provided on the long edges of the opposite sides of the straight groove (13) parallel to the straight direction. A spring (343) is sleeved on the adjusting nut (34). The two ends of the spring (343) abut against the bevel gear (342) and the adjusting slider (33) respectively.

7. The multi-hole processing apparatus according to claim 1, characterized in that, It also includes a sliding rod (322) and a fastening nut (324). The adjusting frame (31) has a sliding groove (312). The sliding rod (322) is coaxially connected to the support shaft (32). One end of the sliding rod (322) is radially protruding and has a shoulder (323). The other end is threadedly connected to the fastening nut (324). The sliding rod (322) passes through the sliding groove (312). Both ends of the adjusting frame (31) abut against the shoulder (323) and the fastening nut (324) respectively.

8. A multi-hole processing apparatus according to claim 7, characterized in that, It also includes a side bracket (351) and a limiting rod (35). A threaded rod (352) and a guide rod (353) are arranged parallel to each other on the side bracket (351). The threaded rod (352) and the guide rod (353) are respectively inserted through the limiting rod (35). The threaded rod (352) is threadedly connected to the limiting rod (35). The limiting rod (35) is inserted into the slide groove (312).

9. A multi-hole processing apparatus according to claim 8, characterized in that, The axis of the limiting rod (35) is parallel to the axis of the sliding rod (322), and the axis of the threaded rod (352) is parallel to the straight line direction.

10. A multi-hole processing apparatus according to any one of claims 1-9, characterized in that, The outer periphery of the support shaft (32) is provided with a limiting plane (321) along the axial direction, and the limiting plane (321) abuts against the inner wall of the straight groove (13).

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