CN109530748B - Drilling device and multi-station drilling equipment thereof - Google Patents
Drilling device and multi-station drilling equipment thereof Download PDFInfo
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- CN109530748B CN109530748B CN201710861161.3A CN201710861161A CN109530748B CN 109530748 B CN109530748 B CN 109530748B CN 201710861161 A CN201710861161 A CN 201710861161A CN 109530748 B CN109530748 B CN 109530748B
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- 238000005553 drilling Methods 0.000 title claims abstract description 150
- 230000005540 biological transmission Effects 0.000 claims abstract description 112
- 230000001360 synchronised effect Effects 0.000 claims abstract description 39
- 238000005520 cutting process Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 16
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 description 29
- 239000003921 oil Substances 0.000 description 21
- 230000033001 locomotion Effects 0.000 description 17
- 230000006872 improvement Effects 0.000 description 16
- 238000007723 die pressing method Methods 0.000 description 9
- 238000007789 sealing Methods 0.000 description 7
- 238000003754 machining Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 239000010687 lubricating oil Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B39/00—General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines
- B23B39/16—Drilling machines with a plurality of working-spindles; Drilling automatons
- B23B39/161—Drilling machines with a plurality of working-spindles; Drilling automatons with parallel work spindles
- B23B39/167—Drilling machines with a plurality of working-spindles; Drilling automatons with parallel work spindles having belt and chain transmissions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B39/00—General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines
- B23B39/16—Drilling machines with a plurality of working-spindles; Drilling automatons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B39/00—General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines
- B23B39/16—Drilling machines with a plurality of working-spindles; Drilling automatons
- B23B39/161—Drilling machines with a plurality of working-spindles; Drilling automatons with parallel work spindles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention provides a drilling device and multi-station drilling equipment thereof, which can realize synchronous drilling of multiple holes with micro hole spacing. The drilling device utilizes the matching structure form of the split detachable drill bit and the drill bit main shaft transmission part, the drill bit and the drill bit main shaft transmission part are buckled together through the clamping part, and the drill bit moves along with the drill bit main shaft transmission part. The multi-station drilling device comprises a plurality of drilling devices, adopts a synchronous belt mode and simultaneously realizes multi-station drilling. The multi-station drilling equipment adopts multi-station accurate positioning drilling, and realizes workpiece processing of holes with micro-intervals by multi-station drilling combination. The drill bit used by the invention has low cost, can be exchanged with a common drill bit by adopting simple processing, has good universal performance, reduces the processing cost of products, and ensures that multi-station drilling equipment is not influenced by the radius of a drill chuck, thereby achieving the synchronous drilling function of micro hole spacing.
Description
Technical Field
The invention relates to a drilling device and multi-station drilling equipment thereof, in particular to a precise multi-station drilling device.
Background
In the existing drilling mode, manual drilling or drilling machines are adopted to drill a single hole on a workpiece by using a drill bit. There are also methods of drilling holes with multiple drills, in which multiple drill bits are held by multiple drill holders to drill multiple holes simultaneously. Because each drill bit is correspondingly provided with a drill chuck, when a multi-hole drill is adopted, the hole spacing between two adjacent holes which can be processed is not lower than the sum of the radius of the two drill chucks; for some micro hole spacing or when the hole spacing of two adjacent holes is smaller than the sum of the radiuses of two drill chucks, the existing machining mode of drilling holes simultaneously by a multi-hole drilling line cannot be adopted. The inventors have previously invented a drill bit, such as patent application number 201710415245.4, which is provided with a sliding stem portion of polygonal prism; the synchronous pulley is adopted to drive the transmission mode of the sliding rod part, the synchronous pulley is utilized to drive the drill bit to rotate, and the sliding rod part of the drill bit simultaneously moves downwards relative to the synchronous pulley to realize the drilling mode, so that a drill chuck is not required to be used, the simultaneous processing of a plurality of hole sites with any hole spacing is realized, and particularly, the simultaneous drilling of a plurality of hole sites with the small hole spacing is realized, and the drill bit has the advantage of greatly improving the production efficiency. However, because the drill bit is a special drill bit, the manufacturing cost is high, and the structural difference of the drill bit is large from that of the existing drill bit without the sliding rod part, and the special drill bit and the common drill bit are difficult to combine or exchange.
Disclosure of Invention
The invention aims to provide a drilling device, which utilizes a matched structure form of a split detachable drill bit and a drill bit main shaft transmission part, the drill bit and the drill bit main shaft transmission part are buckled together through a clamping part, and the drill bit moves along with the drill bit main shaft transmission part; the drill spindle transmission piece is matched with the drill bit provided with the clamping part to form a split detachable drill spindle, the split detachable drill spindle can be directly matched with the transmission wheel, the split detachable drill spindle is driven by the transmission wheel to be used as a spindle for driving a drill to rotate, and is used as a drill to drill, so that accurate drilling positioning processing is realized, precise and stable processing of the center distance between holes is ensured, the phenomenon that holes are deviated is avoided, meanwhile, parts of the drilled parts are directly close to the existing drill bit structure, the parts can be manufactured after simple processing by utilizing the existing common drill bit, the manufacturing cost of the device is reduced, and the device is easy to combine with the existing drill bit.
The invention further aims to provide a multi-station drilling device, which effectively utilizes a plurality of drilling devices formed by the drill bit and the drill bit main shaft transmission part, adopts a synchronous belt mode to realize multi-station drilling at the same time, and on one hand, the drill bit clamping mode by the drill chuck is omitted, and the synchronous drilling function which is not influenced by the radius of the drill chuck and achieves small micropore spacing is realized. On the other hand, the used drill bit has low cost, can be exchanged with a common drill bit by adopting simple processing, has good universal performance and reduces the processing cost of products. Meanwhile, the positioning relation between the drill bit and the spindle transmission sleeve can be high in drilling precision and accurate in position.
Another object of the present invention is to provide a method of assembling a drilling apparatus according to the present invention, which completes the assembly of the components of the drilling apparatus.
The invention further aims to provide a working method of the drilling device, which is simple and convenient in multi-station drilling work, reliable in action and high in machining precision.
The invention further aims to provide multi-station drilling equipment, which adopts multi-station accurate positioning drilling and realizes workpiece processing of holes with small intervals by multi-station drilling combination.
The drilling device for achieving the purpose comprises a drill bit, a drill bit main shaft transmission part, a driving wheel, a mounting hole, a clamping part and a reset spring; the drill bit comprises a cutting edge part, a rod part and a clamping part which are positioned at the front end; the drill rod part is positioned at the upper end of the cutting edge part, and the clamping part is positioned at the upper part of the rod part; the clamping part is a through groove or a through hole which traverses the circumferential surface of the rod part. The drill bit spindle transmission part is provided with a sliding rod part and a connecting part, the sliding rod part is a polygonal prism, the connecting part is provided with a drill bit connecting hole, the connecting part is provided with a clamping part mounting hole communicated with the connecting hole from the peripheral direction to the central shaft direction, and the upper end of the sliding rod part is an abutting part; the upper end of the drill rod part extends into a drill connecting hole of the drill spindle transmission part; the clamping piece is arranged in the clamping piece mounting hole, and the clamping piece fixedly connects the drill bit with the drill bit main shaft transmission piece; the clamping piece, the drill spindle transmission piece and the integrated piece after the drill is connected are rotatably arranged in the mounting hole, and the mounting hole is stepped and comprises a first hole for accommodating the drill spindle transmission piece part and a guide hole for accommodating the drill spindle transmission piece guide part or the drill rod part; the transmission piece shaft sleeve is provided with a mounting hole; the driving wheel is provided with a polygonal prismatic hole, and the periphery of the driving wheel is provided with driving gear teeth; the clamping piece, the drill bit main shaft transmission piece and the integrated piece after the drill bit is connected are rotatably arranged in the mounting hole; when the drill bit moves up and down, the guide hole is precisely matched with the guide part of the drill bit main shaft transmission part or the drill bit rod part to provide matching and guiding for the drill bit, so that the drill bit can move downwards along the axis of the guide hole to drill holes, and the situation that the holes cannot deviate is ensured. The driving wheel is sleeved on the sliding rod part, and a polygonal prismatic hole in the driving wheel is matched with the polygonal prismatic body of the sliding rod part; the return spring is disposed between the drill spindle driver connection and the bottom of the first bore of the mounting bore.
As a concrete embodiment of the present invention, the mounting hole is provided in the upper die of the drilling die.
As a concrete implementation of the invention, the drilling device is provided with a driving medium shaft sleeve, and the mounting hole is arranged in the driving medium shaft sleeve.
As an improvement, the second guide hole matched with the cutting edge part of the drill bit is arranged at the opening of the lower end of the mounting hole, and through the double-guide structure, the drill bit is ensured not to deviate and deform during processing, and the processing precision of drilling is improved.
As an improvement, the clamping part is a through groove perpendicular to the axis of the rod part, the through groove comprises three planes, the first plane and the third plane are parallel to the end face of the rod part, and the second plane is parallel to the axis of the rod part; the clamping piece mounting platform is arranged at the position of the clamping piece mounting hole at the periphery of the connecting part; the clamping piece comprises a clamping part and a head part; the clamping part of the clamping piece is matched with the drill clamping part to form a clamping structure; the head of the clamping piece is accommodated in a clamping piece mounting hole of the drill bit main shaft transmission piece, and the plane of the head of the clamping piece is contacted with a clamping piece mounting platform; the cambered surface of the head of the clamping piece is lower than the circumferential surface of the transmission piece or matched with the transmission piece; the clamping piece is used for clamping and combining the drill bit and the drill bit main shaft transmission piece together, the drill bit moves along with the movement of the drill bit main shaft transmission piece, and when the drill bit main shaft transmission piece moves upwards or downwards, the drill bit also moves upwards or downwards; the drill spindle driving piece rotates, and the drill rotates along with the drill spindle driving piece; the rotation and movement between the two are synchronized. A rotary gasket is arranged between the reset spring and the transmission piece shaft sleeve; the rotary gasket is characterized in that an extension hole for extending a drill bit is formed in the middle of the rotary gasket, and a plurality of balls are arranged at the bottom of the rotary gasket.
As an improvement, the driving wheel of the drilling device is a driving gear or a driving synchronous pulley.
The multi-station drilling device for realizing the invention comprises a power main shaft, an upper die mounting plate, two or more station drilling devices and a lower die for placing a workpiece to be machined; the upper die is arranged on the upper die mounting plate, and the drilling device comprises a drill bit, a drill bit main shaft transmission part, a driving wheel, a mounting hole, a clamping part and a reset spring; the drill bit comprises a cutting edge part, a rod part and a clamping part which are positioned at the front end; the rod part is positioned at the upper end of the cutting edge part, and the clamping part is positioned at the upper part of the rod part; the clamping part is a through groove or a through hole which traverses the circumferential surface of the rod part; the drill bit spindle transmission part is provided with a sliding rod part and a connecting part, the sliding rod part is a polygonal prism, the connecting part is provided with a drill bit connecting hole, the connecting part is provided with a clamping part mounting hole communicated with the connecting hole from the peripheral direction to the central shaft direction, and the upper end of the sliding rod part is an abutting part; the upper end of the drill rod part extends into a drill connecting hole of the drill spindle transmission part; the clamping piece is arranged in the clamping piece mounting hole, and the drill bit main body are fixedly connected by the transmission piece through the clamping piece; the mounting hole is in a step shape and comprises a first hole for accommodating the drill bit main shaft transmission part and a guide hole for accommodating the drill bit rod part; when the drill bit moves up and down, the guide hole is precisely matched with the rod part of the drill bit to provide matching and guiding for the drill bit, so that the drill bit can drill holes in a downward movement along the axis of the first guide hole, and the situation that the hole position is deviated is ensured. The driving wheel is provided with a polygonal prismatic hole, and the periphery of the driving wheel is provided with driving gear teeth; the upper end of the drill rod part extends into a drill connecting hole of the drill spindle transmission part; the clamping piece is arranged in the clamping piece mounting hole, the clamping piece is inserted from the mounting hole of the drill bit main shaft transmission piece, and the drill bit is fixedly connected with the drill bit main shaft transmission piece through the matching of the drill bit clamping part and the clamping piece; the drill bit and the drill bit main shaft transmission part which are fixedly connected are arranged in the mounting hole of the transmission part shaft sleeve; the clamping piece, the drill spindle transmission piece and the integrated piece after the drill is connected are rotatably arranged in the mounting hole, the transmission wheel is sleeved on the sliding rod part, and the polygonal prismatic hole in the transmission wheel is matched with the polygonal prismatic body of the sliding rod part; the reset spring is arranged between the connecting part of the drill spindle transmission piece and the bottom of the first hole of the mounting hole; the lower die and the upper die are arranged correspondingly; a transmission mechanism is arranged between the power main shaft and the transmission wheel.
As a concrete embodiment of the present invention, the mounting hole is provided in the upper die of the drilling die.
As a concrete implementation of the invention, the drilling device is provided with a driving medium shaft sleeve, and the mounting hole is arranged in the driving medium shaft sleeve. The upper die is provided with a drilling main shaft hole, and the driving medium shaft sleeve is arranged in the drilling main shaft hole;
as an improvement, the second guide hole matched with the cutting edge part of the drill bit is arranged at the opening of the lower end of the mounting hole, and through the double-guide structure, the drill bit is ensured not to deviate and deform during processing, and the processing precision of drilling is improved.
As an improvement, the driving wheel of the multi-station drilling device is a synchronous belt wheel; the power main shaft and two or more synchronous pulleys form a synchronous belt transmission mechanism through a synchronous belt; two or more tensioning wheels are arranged in the synchronous belt mechanism, and the tensioning wheels are fixedly arranged on the upper module.
As an improvement, the clamping part is a through groove perpendicular to the axis of the rod part, the through groove comprises three planes, the first plane and the third plane are parallel to the end face of the rod part, and the second plane is parallel to the axis of the rod part; the clamping piece mounting platform is arranged at the position of the clamping piece mounting hole at the periphery of the connecting part; the clamping piece comprises a clamping part and a head part; the clamping part of the clamping piece is matched with the drill clamping part to form a clamping structure; the head of the clamping piece is accommodated in a clamping piece mounting hole of the drill bit main shaft transmission piece, and the plane of the head of the clamping piece is contacted with a clamping piece mounting platform; the cambered surface of the head of the clamping piece is matched with the circumferential surface of the drill bit main shaft transmission piece.
As an improvement, the upper die of the multi-station drilling device comprises an upper die block, an upper die oil sealing plate and an upper die pressing plate; the upper module is provided with a lubricating oil groove which is communicated with the main shaft hole; the upper die oil seal plate is fixedly arranged above the upper module and seals the lubricating oil groove; the drilling main shaft hole is formed in the upper die oil sealing plate, the drilling device is arranged in the main shaft hole of the upper die oil sealing plate and the main shaft hole of the upper die oil sealing plate, an upper die pressing plate is arranged above the upper die oil sealing plate to cover the synchronous pulley, the upper die pressing plate is provided with a sliding rod hole, and the sliding rod extends out of the sliding rod hole of the upper die.
As an improvement, the mounting hole of the drill bit driving shaft sleeve of the multi-station drilling device is a stepped through hole; the upper part of the drill bit driving shaft sleeve is provided with a flange step, and the peripheral surface of the drill bit driving shaft sleeve is provided with an oil groove.
The assembly method of the drilling device for achieving the purpose of the invention comprises the following steps:
1) Inserting the drill bit into the connecting hole of the drill bit main shaft transmission member, installing the drill bit on the drill bit main shaft transmission member through the clamping member, and connecting and fixing the drill bit and the drill bit main shaft transmission member into an integral member through the clamping member;
2) Sleeving the drill bit and the drill bit main shaft transmission part which are fixedly connected into a whole into a reset spring and a rotary gasket, and then installing the reset spring and the rotary gasket into a transmission part shaft sleeve;
3) And installing the synchronous pulley on the sliding rod part of the drilling spindle transmission part to form the drilling device.
As an improvement, the drilling device in the drilling device assembling method is provided with a driving medium shaft sleeve, and the mounting hole is arranged on the shaft sleeve; the drilling device mounting hole is in a step shape and comprises a first hole for accommodating a screw tap main shaft transmission part, a first guide hole for accommodating a drill bit rod part and a second guide hole matched with a drill bit cutting edge part at the opening of the lower end of the mounting hole; when the drill bit is mounted in the mounting hole, the drill bit rod portion is matched with the first guide hole, and the drill bit cutting edge portion is matched with the second guide hole.
The working method of the multi-station drilling device for achieving the purpose of the invention comprises the following steps: placing a workpiece to be processed on a lower die; when the upper die moves downwards to press a workpiece to be machined, the upper die, the workpiece to be machined and the lower die are in a static state, the power main shaft drives the synchronous belt to rotate through the synchronous belt pulley transmission mechanism, the synchronous belt drives a plurality of drill main shaft transmission pieces to rotate through a plurality of synchronous belt pulleys respectively, and the drill main shaft transmission pieces drive drill bits to rotate through the clamping pieces; when the drill bit is rotated, the upper die pressing plate presses down the abutting part at the upper end of the drill bit sliding rod, the sliding rod moves downwards to drive the drill bit main shaft transmission part to move downwards, and the drill bit moves downwards while rotating; starting to cut a workpiece to be machined to perform drilling work; when the drill bit moves to the preset position, the drill bit reaches the preset drilling depth, and the preset drilling action is completed. The upper die pressing plate moves upwards, and simultaneously, the drill bit main shaft transmission part moves upwards under the action of the reset spring to drive the drill bit to move upwards, so that the drill bit gradually leaves the processed workpiece. The upper die is lifted off the workpiece and the lower die, and when the upper die pressing plate returns to the initial position, the drill returns to the initial position.
The multi-station drilling equipment for realizing the invention comprises an upper frame, an up-down movement driving mechanism, an upper die lifting seat, an upper pressing plate, an upper die mounting plate, a multi-station drilling device with two or more stations, a drilling driving motor matched with the multi-station drilling device, a lower die rotary workbench, a lower frame and a lower die rotary workbench driving mechanism; the upper and lower moving mechanism fixing part is arranged on the upper frame, and the upper and lower moving mechanism moving part is arranged on the upper die lifting seat; the up-and-down moving mechanism drives the upper die lifting seat to move up and down; the upper pressing plate is fixed on the upper die lifting seat; the upper die mounting plate is hung on the upper die lifting seat, a guide structure of a guide post and a guide hole is arranged between the upper die mounting plate and the upper die lifting seat, and a supporting spring is arranged outside the guide post; the upper dies of two or more multi-station drilling devices are respectively arranged on the upper die mounting plate, and the lower dies of the multi-station drilling devices matched with the upper dies are arranged on the lower die rotating workbench; the lower die rotary workbench is arranged on the lower frame; the lower die rotary workbench driving mechanism is arranged on the lower frame and drives the lower die rotary workbench to rotate; the multi-station drilling device comprises a power main shaft, an upper die mounting plate, two or more drilling devices and a lower die for placing a workpiece to be machined; the upper die is arranged on the upper die mounting plate, and the drilling device comprises a drill bit, a drill bit main shaft transmission part, a driving wheel, a mounting hole, a clamping part and a reset spring; the drill bit comprises a cutting edge part, a rod part and a clamping part which are positioned at the front end; the rod part is positioned at the upper end of the cutting edge part, and the clamping part is positioned at the upper part of the rod part; the clamping part is a through groove or a through hole which traverses the circumferential surface of the rod part; the drill bit spindle transmission part is provided with a sliding rod part and a connecting part, the sliding rod part is a polygonal prism with three or more sides, the connecting part is provided with a drill bit connecting hole, the connecting part is provided with a clamping part mounting hole communicated with the connecting hole from the peripheral direction to the central shaft direction, and the upper end of the sliding rod part is an abutting part; the upper end of the drill rod part extends into a drill connecting hole of the drill spindle transmission part; the clamping piece is arranged in the clamping piece mounting hole, and the clamping piece fixedly connects the drill bit with the drill bit main shaft transmission piece; the clamping piece, the drill spindle transmission piece and the integrated piece after the drill is connected are rotatably arranged in the mounting hole, and the mounting hole is stepped and comprises a first hole for accommodating the drill spindle transmission piece part and a guide hole for accommodating the drill spindle transmission piece guide part or the drill rod part; the driving wheel is provided with a polygonal prismatic hole, and the periphery of the driving wheel is provided with driving gear teeth;
the driving wheel is arranged on the sliding rod part, and a polygonal prismatic hole in the driving wheel is matched with the polygonal prismatic body of the sliding rod part; the reset spring is arranged between the connecting part of the main shaft transmission piece and the bottom of the first hole of the mounting hole; the lower die and the upper die are arranged correspondingly; a transmission mechanism is arranged between the power main shaft and the transmission wheel.
As an improvement of the multi-station drilling equipment, the mounting holes are arranged on the upper die.
As an improvement of multi-station drilling equipment, the drilling device is provided with a driving medium shaft sleeve; the mounting hole is formed in the transmission member shaft sleeve, and the clamping piece, the drill bit main shaft transmission piece and the integrated piece after the drill bit is connected are rotatably arranged in the mounting hole in the transmission member shaft sleeve; the upper die is provided with a main shaft hole, and the driving medium shaft sleeve is arranged in the main shaft hole.
As an improvement of the multi-station drilling equipment, a second guide hole matched with the cutting edge part of the drill bit is arranged at the opening of the lower end of the mounting hole.
As an improvement of multi-station drilling equipment, the driving wheel is a synchronous belt wheel; the power main shaft and two or more driving wheels form a synchronous belt driving mechanism through a synchronous belt; two or more tensioning wheels are arranged in the synchronous belt mechanism, and the tensioning wheels are fixedly arranged on the upper die.
As an improvement of the multi-station drilling equipment, the clamping part is a through groove perpendicular to the axis of the rod part, the through groove comprises three planes, the first plane and the third plane are parallel to the end face of the rod part, and the second plane is parallel to the axis of the rod part; a clamping piece mounting platform is arranged at the position of the clamping piece mounting hole at the periphery of the connecting part; the clamping piece comprises a clamping part and a head part; the clamping part of the clamping piece is matched with the drill clamping part to form a clamping structure; the head of the clamping piece is accommodated in a clamping piece mounting hole of the drill bit main shaft transmission piece, and the plane of the head of the clamping piece is contacted with a clamping piece mounting platform; the cambered surface of the head of the clamping piece is matched with the circumferential surface of the drill bit main shaft transmission piece.
As an improvement of multi-station drilling equipment, the upper die comprises an upper die block, an upper die oil sealing plate and an upper die pressing plate; the upper module is provided with a lubricating oil groove which is communicated with the main shaft hole; the upper die oil seal plate is fixedly arranged above the upper module and seals the lubricating oil groove; the upper die block and the upper die oil seal plate are provided with spindle holes, the drill bit spindle transmission device is arranged in the spindle holes of the upper die oil seal plate and the upper die block, and the flange-shaped edge of the upper part of the transmission piece shaft sleeve is arranged at the edge of the spindle hole of the upper die oil seal plate; an upper die pressing plate is arranged above the upper die oil sealing plate to cover the synchronous pulley, a sliding rod hole is formed in the upper die pressing plate, and a sliding rod extends out of the sliding rod hole of the upper module.
As an improvement of multi-station drilling equipment, the up-and-down movement driving mechanism comprises an up-and-down movement servo motor, an up-and-down movement driving screw and a driving nut, wherein an output shaft of the servo motor is fixedly connected with the driving screw, and the driving nut is arranged on the driving screw; the lower die rotary workbench driving mechanism is fixedly connected with a rotary servo motor, and a servo motor rotating shaft is fixedly connected with the lower die rotary workbench.
The drill bit has the beneficial effects that the clamping part is arranged at the upper part of the rod part, the clamping part is matched with the drill bit main shaft transmission part to form a special drill bit, the combined special drill bit is matched with the transmission wheel, and the combined special drill bit is driven by the transmission wheel to rotate as a drilling main shaft for driving the drill bit to rotate and also used as a processing cutting tool for drilling. The invention changes the original integral special drill bit into the assembly structure of the split piece buckle type, and plays a role in supporting the upper and lower parts by utilizing the designed drill bit main shaft transmission piece. In addition, if the drill bit is damaged during the drilling process, only the drill bit part and the drill bit main shaft transmission part are required to be replaced, so that compared with the drill bit with the integral sliding rod part in the prior invention, the replacement cost of the accessory is greatly reduced, and the whole production cost is reduced. In addition, the split disassembly mode is carried out by adopting the clamping piece mode, and the drill bit replacing device has the advantages of simple structure and convenience in drill bit replacing work. In the drilling device, the driving medium shaft sleeve is arranged, so that on one hand, the up-and-down movement of the drill bit is realized, and on the other hand, the stability and the precision of drilling are ensured; the precise matching relation between the guide part of the drill bit driving member or the shaft part of the drill bit and the shaft sleeve of the driving member is utilized, so that the stability of the drill bit during rotation is ensured, the accuracy of hole position processing is realized, and the phenomenon that the hole is deviated during drilling processing is avoided. Meanwhile, when the wall of the mounting hole is damaged, the whole upper die is not required to be detached for maintenance, and only the transmission piece shaft sleeve is required to be taken out for maintenance or replacement, so that the maintenance work difficulty is simplified, the maintenance man-hour is reduced, and the maintenance cost of the device is reduced. In the multi-station drilling equipment, the precision and precision of hole spacing among all hole sites are realized. The oil groove is arranged in the porous drilling device, lubrication in the metal machining process is realized, the machining effect is ensured, the service life of a machining tool is prolonged, and the machining performance is improved. The multi-station drilling equipment adopts a multi-station accurate positioning drilling mode, combines holes drilled in front and rear steps, avoids the drilling mode of a drilling device with a tiny space on one multi-station drilling device, combines and processes the holes drilled in the front and rear steps in a mode of accurate positioning between the front and rear steps by using the drilling device, and realizes the processing of workpieces with the holes with tiny space.
Drawings
Fig. 1 is a schematic perspective view of a multi-station drilling apparatus.
Fig. 2 is a schematic view of the upper housing and its components.
Fig. 3 is a schematic view of the upper housing and its components at another angle.
Fig. 4 is a schematic view of the lower housing and its components.
Fig. 5 is a schematic view of the lower housing and its components at another angle.
Fig. 6 is an exploded view of the upper die lifting seat and its components.
Fig. 7 is a schematic view of a drilling apparatus.
Fig. 8 is a cross-sectional view A-A of fig. 7.
Fig. 9 is an exploded schematic view of a drilling apparatus.
Fig. 10 is a schematic cross-sectional view of a driving member bushing.
Fig. 11 is a schematic perspective view of a multi-station drilling apparatus.
Fig. 12 is a perspective view of an upper die of the multi-station drilling apparatus.
Fig. 13 is a schematic view of an upper die moving up an upper die platen of a multi-station drilling apparatus.
Fig. 14 is a top view of the multi-station drilling apparatus with the upper die removed and the upper die platen.
Fig. 15 is a schematic B-B face view of fig. 14.
Fig. 16 is a schematic cross-sectional view of the drill bit in a drilling state.
Fig. 17 is a top view of the upper module.
Fig. 18 is a schematic view of section C-C of fig. 17.
Fig. 19 is a cross-sectional view of a second embodiment of the drilling apparatus.
Fig. 20 is a cross-sectional view of a third embodiment of a drilling apparatus.
Fig. 21 is a cross-sectional view of a fourth embodiment of a drilling apparatus.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
Example 1
As shown in fig. 1 to 6, the multi-station drilling apparatus includes an upper frame 8, a guide post 71, an up-and-down movement driving mechanism 82, an upper die lifting base 51, an upper platen 52, an upper die mounting plate 53, a multi-station drilling device 2, a drilling driving motor 4, a lower die rotary table 60, a lower frame 7, and a lower die rotary table driving mechanism 65.
Four lower dies 61 are also provided on the lower die rotating table. The upper frame is also provided with a detection device 83. The lower frame 7 and the upper frame 8 are connected by four guide posts 71. The servo motor 9 is arranged in the lower frame 7 and can drive the lower die rotary workbench driving mechanism 65 to drive the lower die rotary workbench 60 to rotate, so that the lower die 60 can be switched between different stations. The upper frame 8 is provided with a servo motor 81 and a detection device 83. The servo motor 81 drives the up-and-down movement driving mechanism 82, the up-and-down movement driving mechanism 82 is a screw rod, and the screw rod nut is matched with the upper die lifting seat 51. The upper die lifting seat 51 is nested on the guide post 71. The up-and-down movement driving mechanism 82 drives the upper die lifting seat 51 to move up and down along the guide post 71 by rotating.
As shown in fig. 1 to 6, the lower die rotating table driving mechanism 65 is driven by a motor to drive the lower die rotating table 60 to rotate, and when the lower die 61 completes one process step, the table rotates 90 ° and the corresponding lower die 61 enters the next station, and a workpiece to be machined sequentially passes through each station corresponding to the lower die 61 in the whole drilling process. As shown in fig. 4, the lower die 61 is currently in the pick-and-place station, and sequentially rotates through the pick-and-place station, the first drilling station 62, the inspection station 63, and the second drilling station 64 during continuous operation.
As shown in fig. 1 to 6, a multi-station drilling device 2 is provided at a first drilling station 62 and a second drilling station 64.
As shown in fig. 4, 7 and 11, the multi-station drilling apparatus includes a power spindle 2401, an upper die 25, an upper die mounting plate 53, a plurality of drilling apparatuses 23, and a lower die 26 for placing a workpiece to be machined.
As shown in fig. 7, 8 and 10, the drilling device 23 includes a drill bit 21, a drill bit spindle driver 22, a timing pulley 2301, a driver sleeve 2302, a clamp 2303, the drill bit 21, and a return spring 23025;
as shown in fig. 10, the drill 21 includes a cutting edge portion 2101 formed at the tip, a drill shank 2102, and a locking portion 2103; the bit shank 2102 is located at an upper end of the cutting edge portion 2101, and the locking portion 2103 is located at an upper portion of the bit shank 2102. The locking portion 2103 is a through slot perpendicular to the shaft axis, and includes three planes, a first plane 21031 and a third plane 21033 parallel to the shaft end face, and a second plane 21032 parallel to the shaft axis. The space of the through groove is used as the accommodating space of the inserted clamping piece. The first plane, the second plane and the third plane of the through groove are contacted with the corresponding surfaces of the clamping piece, so that force transmission in the vertical direction and the rotating direction is realized.
As shown in fig. 10, the drill spindle driver 22 includes a sliding rod portion 2201 and a connecting portion 2202, wherein the sliding rod portion 2201 is a square prism; the connecting part 2202 is provided with a drill bit connecting hole 2203, the connecting part 2202 is provided with a clamping piece mounting hole 2204 communicated with the drill bit connecting hole 2203, and the upper end of the sliding rod part 2201 is an abutting part; a clamping piece mounting platform 2205 is arranged at the peripheral position of the connecting part of the drill spindle transmission piece 22.
As shown in fig. 8 to 10, the upper end of the drill rod 2102 extends into the drill connecting hole 2203 of the drill spindle driver 22; the clamping piece 2303 is arranged in the clamping piece mounting hole 2204, and the clamping piece fixedly connects the drill bit 21 with the drill bit main shaft transmission piece 22; the driving medium shaft sleeve 2302 is provided with a mounting hole 23021; a square prism-shaped hole 23011 is formed in the synchronous pulley 2301, and transmission gear teeth 23012 are formed in the periphery of the synchronous pulley 2301; the clamping piece 2303, the drill spindle transmission piece 22 and the integrated piece after the drill 21 is connected are rotatably arranged in a mounting hole 23021, and the mounting hole 23021 is stepped and comprises a first hole 230211 for accommodating part of the drill spindle transmission piece 22, a first guide hole 230212 for accommodating the drill rod part; when the drill bit 21 moves up and down, the first guide hole 230212 is in precise fit with the drill bit rod part 2102 to provide fit and guide for the drill bit 21, the second guide hole matched with the drill bit cutting edge part is arranged at the opening of the lower end of the mounting hole, and through the double-guide structure, the drill bit 21 moves downwards along the axis of the first guide hole 230212 to drill holes, the drill bit cannot deviate and reduce deformation during processing, and the processing precision of the drill holes is improved. The situation that the hole position is deviated is guaranteed. The clip 2303 includes a clip portion 23031 and a clip head portion 23032; the fastening part 23031 of the fastening piece is matched with the drill fastening part 2103 to form a fastening structure; the clamp head 23032 is accommodated in the clamp mounting hole 2204 of the drill spindle driver 22, and the plane of the clamp head 23032 is contacted with the clamp mounting platform 2205; the cambered surface of the clamping piece head 23032 is slightly lower than the circumferential surface of the drill bit spindle transmission piece 22; the clamping member 2303 clamps the drill bit 21 and the drill bit spindle driver 22 together, the drill bit 21 moves along with the movement of the drill bit spindle driver 22, and when the drill bit spindle driver 22 moves up or down, the drill bit 21 also moves up or down; the drill spindle driving member 22 rotates, and the drill 21 rotates along with the rotation; the rotation and movement between the two are synchronized. The synchronous pulley 2301 is sleeved on the sliding rod portion 2201, and a square prism-shaped hole 23011 in the synchronous pulley 2301 is matched with the polygonal prism of the sliding rod portion 2201;
as shown in fig. 10, a return spring 23025 is provided between the bit spindle driver 22 connection 2202 and the driver sleeve 2302; a rotary gasket 23024 is arranged between the reset spring 23025 and the transmission member shaft sleeve 2302, an extension hole for extending a drill bit is arranged in the middle of the rotary gasket 23024, and a plurality of balls 230241 are arranged at the bottom of the rotary gasket.
As shown in fig. 11 and 15, the upper die 25 is mounted on the upper die mounting plate 53, the upper die 25 is provided with a plurality of drilling spindle holes 2403, and the drilling device 23 is mounted in the drilling spindle holes 2403; the lower die 26 is arranged corresponding to the upper die 25 in position; the power main shaft 2401 and the synchronous pulley 2301 form a synchronous belt transmission mechanism through a synchronous belt 2404; in the timing belt mechanism, a plurality of tensioning pulleys 2405, the tensioning pulleys 2405 are fixedly mounted on the upper die 25.
As shown in fig. 11 to 18, the upper die 25 includes an upper die block 2501, an upper die oil seal plate 2502, and an upper die platen 2503; upper module 2501 has lubrication grooves 2504 in communication with spindle bore 2403; upper mold oil seal plates 2502 are fixedly installed on both sides above upper module 2501, and seal oil grooves 2504; the upper module 2501 and the upper die oil seal plate 2502 are provided with drilling spindle holes, the drilling device is arranged in the spindle holes 2403 of the upper die oil seal plate and the upper module, and the upper flange-shaped edge of the transmission piece shaft sleeve 2302 is arranged on the edge of the spindle holes 2403 of the upper die oil seal plate; an upper die plate 2503 is provided above the upper die oil seal plate 2502 to shield the timing pulley 2301, a slide rod hole 2505 is provided in the upper die plate 2503, and the slide rod portion 2201 extends from the slide rod hole 2505 of the upper module.
As shown in fig. 10, the method for installing the drill bit device is to insert the drill bit 21 into the drill bit connecting hole 2203 of the drill bit spindle driver 22, install the drill bit 21 onto the drill bit spindle driver 22 through the clamping member 2303, and connect and fix the drill bit 21 and the drill bit spindle driver 22 into an integral piece through the clamping member 2303; the drill bit 21 and the drill bit main shaft transmission member 22 which are fixedly connected into a whole are sleeved into a reset spring 23025 and a rotary gasket 23024 and then are installed in a transmission member shaft sleeve 2302; the boring device is formed by sleeving the timing pulley 2301 on the slide shaft portion 2201 of the drill spindle driver 22.
As shown in fig. 6, 10, 11, 12 and 16, the working method of the multi-station drilling device is as follows: placing the workpiece to be machined on the lower die 26; when the upper die 25 moves downward to press the workpiece to be machined, the upper die 25, the workpiece to be machined and the lower die 26 are in a static state; the power spindle 2401 drives the synchronous belt 2404 to rotate through a synchronous pulley transmission mechanism, the synchronous belt 2404 respectively drives a plurality of drill spindle transmission pieces 22 to rotate through a plurality of synchronous pulleys 2301, and the drill spindle transmission pieces 22 drive the drill 21 to rotate through the clamping pieces 2303; while rotating, the upper pressing plate 52 presses down the abutting part at the upper end of the drill bit sliding rod 2201, the sliding rod 2201 moves downwards to drive the drill bit spindle driving member 22 to move downwards, and the drill bit 21 moves downwards while rotating; starting to cut a workpiece to be machined to perform drilling work; when moved to the predetermined position, the drill bit 21 reaches a predetermined drilling depth, completing the predetermined drilling action. While the upper pressing plate 52 moves upwards, the drill spindle transmission member 22 moves upwards under the action of the return spring 23025, driving the drill 21 to move upwards, gradually leaving the machined workpiece. The upper die 25 is lifted off the workpiece and the lower die 26, and when the upper die platen is returned to the initial position, the drill 21 is returned to the initial position.
Example 2
As shown in fig. 19, unlike in embodiment 1, a manner in which the bit shank is engaged with the pilot hole is not adopted. The drill spindle driver 22 is provided with a drill spindle driver 22 guide portion 2206, the drill spindle driver 22 guide portion 2206 is precisely matched with the first guide hole 230212 of the mounting hole 23021, and matching and guiding are provided for the drill 21, so that the drill 21 can drill holes in a downward movement along the axis of the first guide hole 230212, and the situation that the holes cannot deviate is ensured.
Example 3
As shown in fig. 20, the difference from embodiment 1 is that a one-stage guiding manner is adopted. The drill bit 21 is drilled by the accurate matching of the drill bit rod 2102 and the guide hole 230212 along the axis of the first guide hole 230212, so that the situation that the hole position is deviated is avoided.
Example 4
As shown in fig. 21, unlike in embodiment 1, the drilling apparatus is not provided with a driving medium bushing. The mounting hole 23021 is provided on the upper die 25. The clamping member 2303, the drill spindle driver 22, and the integrated member after the drill 21 is coupled are rotatably disposed in a mounting hole 23021, and the mounting hole 23021 is stepped and includes a first hole 230211 for receiving a portion of the drill spindle driver 22 and a first guide hole 230212 for receiving a portion of a drill rod.
The up-and-down moving mechanism can also be a crank block, a gear rack and other mechanisms capable of realizing up-and-down movement. The realizing mechanism of the rotary workbench can also be other mechanisms which can realize rotary motion, such as gear set transmission, ratchet, and the like. The scope of protection of this patent is not limited to the embodiments illustrated by the examples.
Claims (2)
1. A method of assembling a drilling device, which comprises the steps of,
the drilling device comprises a drill bit, a drill bit main shaft transmission part, a drill bit transmission wheel, a drill bit mounting hole, a drill bit clamping part and a drill bit reset spring;
the drill bit comprises a drill bit cutting edge part, a drill bit rod part and a drill bit clamping part which are positioned at the front end;
the drill rod part is positioned at the upper end of the drill cutting edge part, and the drill clamping part is positioned on the drill rod part; the drill clamping part is a through groove or a through hole which traverses the circumferential surface of the drill rod part;
the drill spindle transmission part is provided with a drill sliding rod part and a drill connecting part, the drill sliding rod part is a polygonal prism, the drill connecting part is provided with a drill connecting hole, the drill connecting part is provided with a drill clamping part mounting hole communicated with the connecting hole from the peripheral direction to the central shaft direction, and the upper end of the drill sliding rod part is an abutting part;
the drill driving wheel is provided with polygonal prismatic holes, and the periphery of the drill driving wheel is provided with drill driving gear teeth;
the drilling driving wheel is sleeved on the drill bit sliding rod part, and a polygonal prismatic hole in the drilling driving wheel is matched with the polygonal prismatic body of the sliding rod part;
the drill bit reset spring is arranged between the drill bit main shaft transmission part connecting part and the bottom of the first drilling hole of the drill bit mounting hole;
the method is characterized in that: the method comprises the following steps:
1) Inserting the drill bit into the connecting hole of the drill bit main shaft transmission member, mounting the drill bit on the drill bit main shaft transmission member through the drill bit clamping member, and connecting and fixing the drill bit and the drill bit main shaft transmission member into an integral member through the drill bit clamping member;
2) Sleeving the drill bit and the drill bit main shaft transmission part which are fixedly connected into a whole into a drilling reset spring and a rotary gasket, and then installing the drill bit and the drill bit main shaft transmission part into a shaft sleeve of the drill bit main shaft transmission part;
3) And installing the drilling synchronous pulley on the drill bit sliding rod part of the drilling spindle transmission part to form the drilling device.
2. The method of assembling a drilling apparatus according to claim 1, wherein the drilling apparatus is provided with a drill driving member bushing, and the drill mounting hole is provided in the bushing; the drill bit mounting hole of the drilling device is in a step shape and comprises a first drilling hole for accommodating a drill bit main shaft transmission part, a first drilling guide hole for accommodating a drill bit rod part, and a second drilling guide hole matched with the drill bit cutting edge part at the opening of the lower end of the drill bit mounting hole; when the drill bit is mounted in the drill bit mounting hole, the drill bit rod portion is matched with the first guide hole for drilling, and the drill bit cutting edge portion is matched with the second guide hole for drilling.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710861161.3A CN109530748B (en) | 2017-09-21 | 2017-09-21 | Drilling device and multi-station drilling equipment thereof |
| PCT/CN2018/100217 WO2019056886A1 (en) | 2017-09-21 | 2018-08-13 | Drilling apparatus and multi-station drilling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710861161.3A CN109530748B (en) | 2017-09-21 | 2017-09-21 | Drilling device and multi-station drilling equipment thereof |
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| Publication Number | Publication Date |
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| CN109530748A CN109530748A (en) | 2019-03-29 |
| CN109530748B true CN109530748B (en) | 2024-02-20 |
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| CN201710861161.3A Active CN109530748B (en) | 2017-09-21 | 2017-09-21 | Drilling device and multi-station drilling equipment thereof |
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| WO (1) | WO2019056886A1 (en) |
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| CN111014759A (en) * | 2019-12-09 | 2020-04-17 | 金湖县常盛动力机械配件有限公司 | Multi-station machining device for workpiece mounting holes of roller pins |
| CN111069646A (en) * | 2020-02-10 | 2020-04-28 | 福建惠安新然石材有限公司 | Multi-station drilling machine |
| CN111842964B (en) * | 2020-07-13 | 2024-08-06 | 杭州中允科技有限公司 | Double-end reaming equipment for cylinder |
| CN118060593A (en) * | 2024-04-22 | 2024-05-24 | 泰兴市瑞之宁金属制品有限公司 | Drilling processing device for metal plate to be processed of automobile |
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| US4315706A (en) * | 1980-04-07 | 1982-02-16 | General Electric Company | Holder assembly for an indexable insert for use in a cutting tool |
| KR20140004946A (en) * | 2012-07-03 | 2014-01-14 | 주식회사 주영금속 | Multiple spindle drilling machine |
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| Publication number | Publication date |
|---|---|
| CN109530748A (en) | 2019-03-29 |
| WO2019056886A1 (en) | 2019-03-28 |
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