CN203887261U - Batch machining device for multiple holes uniformly formed in circumferences - Google Patents

Batch machining device for multiple holes uniformly formed in circumferences Download PDF

Info

Publication number
CN203887261U
CN203887261U CN201420168446.0U CN201420168446U CN203887261U CN 203887261 U CN203887261 U CN 203887261U CN 201420168446 U CN201420168446 U CN 201420168446U CN 203887261 U CN203887261 U CN 203887261U
Authority
CN
China
Prior art keywords
hole
drill bit
distributed
drill
batch machining
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420168446.0U
Other languages
Chinese (zh)
Inventor
钟柏活
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201420168446.0U priority Critical patent/CN203887261U/en
Application granted granted Critical
Publication of CN203887261U publication Critical patent/CN203887261U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Drilling And Boring (AREA)

Abstract

The utility model discloses a batch machining device for multiple holes uniformly formed in circumferences. The batch machining device comprises a vertical hydraulic drilling machine and an indexing fixture. The vertical hydraulic drilling machine is provided with a grouped drill bit assembly or grouped screw tap assembly with n drill bits or screw taps; the drill bits or screw taps of the grouped drill bit assembly or the grouped screw tap assembly are supported in bearing positioning holes via bearings; the indexing fixture is provided with a turntable indexing plate; the bearing positioning holes are distributed on the central circumference of a drill base plate, the central circumference of the drill base plate and hole distribution circumferences are coaxial with one another and have equal diameters, each bearing positioning hole and one of circular holes or threaded holes in the hole distribution circumferences are coaxial with each other, and the circular holes or threaded holes are uniformly distributed on the hole distribution circumferences; the turntable indexing plate and the central circumference of the drill base plate are coaxial with each other, m indexing bolt openings are uniformly formed in the circumferential edge of the turntable indexing plate, the turntable indexing plate is divided into m intervals by radial lines which extend from the center of the turntable indexing plate to the indexing bolt openings, and the circular holes or threaded holes are uniformly distributed in the various intervals. The batch machining device has the advantages of simple structure and applicability to places where components with multiple holes, small diameters and short center distances are available.

Description

Carry out the device of batch machining to being distributed in porous on circumference
Technical field
The utility model relates to the device that carries out batch machining to being distributed in porous on circumference.
Background technology
In prior art, the porous being distributed on circumference is added to man-hour, adopt and have group drill bit assembly or ***ine to attack the porous that assembly treats on the circumference of processing parts to process simultaneously by vertical hydraulic drilling machine, group drill bit assembly or ***ine is attacked the drill bit of assembly or the quantity of screw tap equates with the quantity of the porous on circumference, energy once-through operation complete the processing to porous like this.But for the smaller aperture of pitch-row, technique scheme is just limited to, because the block bearing of drill bit occupies certain space, make distance between adjacent drill bit be subject to the restriction of block bearing, cause the pitch-row of adjacent aperture can not be less than the centre-to-centre spacing of adjacent two block bearings, in the time that the pitch-row of adjacent aperture is less than the centre-to-centre spacing of adjacent two block bearings, can only process one by one, work efficiency is very low.
Summary of the invention
Technical problem to be solved in the utility model is, provides a kind of adjacent holes of processing apart from very little aperture or screwed hole, the work efficiency high device that carries out batch machining to being distributed in porous on circumference again.
The technical scheme that the utility model technical solution problem adopts is: a kind of device that carries out batch machining to being distributed in porous on circumference, for processing the multiple circular holes or the screwed hole that are distributed on cloth hole circle week, this circular hole or screwed hole have mn, n >=1, m >=1, comprise vertical hydraulic drilling machine, this vertical hydraulic drilling machine has group drill bit assembly or ***ine to attack assembly, and group drill bit assembly or ***ine are attacked assembly drill bit or screw tap; Drill jig substrate, has bearing locating hole on this drill jig substrate, and drill bit or screw tap that this group drill bit assembly or ***ine are attacked in assembly are supported on bearing locating hole by bearing; Indexing fixture, this indexing fixture comprises rotating disk index plate; Drill bit or screw tap have n, and this bearing locating hole is distributed in the center circumferential of drill jig substrate, this center circumferential and coaxial also equal diameters of cloth hole circle week, and each bearing locating hole is with to be distributed in one of them circular hole or screwed hole on cloth hole circle week coaxial; Rotating disk index plate is coaxial with center circumferential, the uniform m of a rotating disk index plate periphery calibration pin clamp, the center of described rotating disk index plate is divided into m interval to the RADIAL of described calibration pin clamp by described rotating disk index plate, and described circular hole or screwed hole are divided equally in each interval.
Beneficial effect: in technique scheme, because circular hole to be processed or screwed hole have mn, group drill bit assembly or ***ine are attacked assembly n drill bit or screw tap, the uniform m of a rotating disk index plate periphery calibration pin clamp, described rotating disk index plate is divided into m interval by the center of rotating disk index plate to the RADIAL of described calibration pin clamp, circular hole or screwed hole are divided equally in each interval, and n drill bit or screw tap arbitrarily distribute in center circumferential, as long as drill bit or screw tap be distributed in one of them circular hole in all intervals of cloth hole circle or screwed hole coaxially, because the quantity of circular hole to be processed or screwed hole is m times of drill bit or screw tap, and the diameter of the center circumferential of drill jig substrate is identical with the cloth hole circle diameter of part to be processed, the centre-to-centre spacing that makes adjacent drill bit or screw tap can be adjacent circular hole or screwed hole centre-to-centre spacing 1 to m doubly, when operation, need only uniform m calibration pin clamp of rotating disk index plate periphery, described rotating disk index plate is divided into m interval by the center of described rotating disk index plate to the RADIAL of described calibration pin clamp, described circular hole or screwed hole are divided equally and in each interval, are located one by one one time, the every location of rotating disk index plate once, operational group drill bit assembly or ***ine are attacked assembly and are processed once, when processing can produce mn circular hole or screwed hole for m time.The technical program has improved n doubly than processing one by one circular hole or screwed hole work efficiency, and the centre-to-centre spacing of adjacent circular hole or screwed hole can be dwindled m doubly than prior art, and therefore, the technical program can be processed adjacent holes apart from very little aperture or screwed hole, and work efficiency greatly improves.
As to technique scheme preferred concrete scheme, m=4.This selection is more reasonable, and rotating disk index plate divides location four times, and adjacent drill bit or the centre-to-centre spacing of screw tap can expand 4 times than the centre-to-centre spacing of circular hole or screwed hole, and the diameter of the block bearing of drill bit or screw tap can be than the diameter of drill bit or screw tap at least large 4 times.
As the further improvement to technique scheme, also comprise drill bit guide plate, described drill bit guide plate is placed under described drill jig substrate, and the distance of this drill bit guide plate and drill jig substrate is less than the length of drill bit.This improves and is relatively applicable to the circular hole that setting accuracy on work is had relatively high expectations, and makes drill bit positioning precision higher more steady.
As the further improvement to technique scheme, also comprise guide rail slide unit, this indexing fixture is located on guide rail slide unit, one end of guide rail slide unit and center circle just to and be fixed in the frame of vertical hydraulic drilling machine.The clamping positioning action of processing parts is convenient in this improvement.
As the further improvement to technique scheme, there is p cloth hole circle week, p>=1, the diameter in p cloth hole circle week increases progressively and with one heart, the circular hole or the screwed hole that are distributed on respectively p cloth hole circle week have mn 1individual, mn 2individual ... mn pindividual.This improvement makes circular hole or screwed hole more of processing.
Brief description of the drawings
The front view of Fig. 1 to be the utility model carry out being distributed in porous on circumference embodiment mono-of the device of batch machining;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the assembling schematic diagram of part to be processed on indexing fixture;
Fig. 4 is the B-B sectional view of Fig. 1;
The front view of Fig. 5 to be the utility model carry out being distributed in porous on circumference embodiment bis-of the device of batch machining;
In the embodiment mono-of processing technology of Fig. 6 to be the utility model carry out being distributed in porous on circumference batch machining, process the A-A sectional view that is equivalent to Fig. 1 of first circular hole or screwed hole;
Fig. 7 is the A-A sectional view that is equivalent to Fig. 1 of reprocessing second batch circular hole or screwed hole on the basis of Fig. 6;
Fig. 8 is the A-A sectional view that is equivalent to Fig. 1 of reprocessing the 3rd batch of circular hole or screwed hole on the basis of Fig. 7;
Fig. 9 is the A-A sectional view that is equivalent to Fig. 1 of reprocessing the 4th batch of circular hole or screwed hole on the basis of Fig. 8;
The A-A sectional view that is equivalent to Fig. 1 in the embodiment bis-of processing technology of Figure 10 to be the utility model carry out being distributed in porous on circumference batch machining;
In the embodiment bis-of processing technology of Figure 11 to be the utility model carry out being distributed in porous on circumference batch machining, be equivalent to the B-B sectional view of Fig. 1;
In the embodiment bis-of processing technology of Figure 12 to be the utility model carry out being distributed in porous on circumference batch machining, process first circular hole or the A-A sectional view that is equivalent to Fig. 1 of screwed hole;
Figure 13 processes the circular hole of second batch or the A-A sectional view that is equivalent to Fig. 1 of screwed hole on the basis of Figure 12;
In the embodiment tri-of processing technology of Figure 14 to be the utility model carry out being distributed in porous on circumference batch machining, be equivalent to the A-A sectional view of Fig. 1;
In the embodiment tri-of processing technology of Figure 15 to be the utility model carry out being distributed in porous on circumference batch machining, be equivalent to the B-B sectional view of Fig. 1;
In the embodiment tri-of processing technology of Figure 16 to be the utility model carry out being distributed in porous on circumference batch machining, process first circular hole or the A-A sectional view that is equivalent to Fig. 1 when screwed hole;
Figure 17 processes the circular hole of second batch or the A-A sectional view that is equivalent to Fig. 1 of screwed hole on the basis of Figure 12;
Figure 18 processes the circular hole of the 3rd batch or the A-A sectional view that is equivalent to Fig. 1 of screwed hole on the basis of Figure 17.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Carry out the device embodiment mono-of batch machining to being distributed in porous on circumference
Referring to Fig. 1, carry out the device of batch machining to being distributed in porous on circumference, comprise vertical hydraulic drilling machine 1, drill jig substrate 2, indexing fixture 3, guide rail slide unit 5.Vertical hydraulic drilling machine 1 has group drill bit assembly or ***ine to attack assembly 11; Group drill bit assembly or ***ine are attacked assembly 11 n drill bit or screw tap 12; On drill jig substrate 2, have bearing locating hole 21, drill bit or screw tap 12 that group drill bit assembly or ***ine are attacked in assembly 11 are connected with active rotating shaft, and are supported on bearing locating hole 21 by bearing; Indexing fixture 3 comprises rotating disk index plate 31, and indexing fixture 3 is located on guide rail slide unit 5, the center circle of one end of guide rail slide unit 5 51 and drill jig substrate 2 straight to and be fixed in the frame 13 of vertical hydraulic drilling machine.
Referring to Fig. 2, uniform 4 the calibration pin clamps 311 of rotating disk index plate 31 peripheries.
Referring to Fig. 3, this device is for processing the multiple circular holes or the screwed hole that are distributed on cloth hole circle week, circular hole or screwed hole have mn, there is p the cloth hole circle week 61 of part to be processed 6, p >=1, the present embodiment, p=3, m=4, the diameter in 3 cloth hole circle weeks 61 increases progressively and with one heart, and being distributed on respectively 3 circular holes on cloth hole circle week 61 or screwed holes 62 has 4x6,4x4,4x2.The center of rotating disk index plate is divided into 4 intervals to the RADIAL of calibration pin clamp 311 by rotating disk index plate, and circular hole or screwed hole 62 are divided equally in each interval.
Referring to Fig. 4, bearing locating hole 21 is distributed in the center circumferential 22 of drill jig substrate 2, center circumferential 22 and cloth hole circle week 61 coaxial also equal diameters, each bearing locating hole 21 is with to be distributed in one of them circular hole or screwed hole 62 on cloth hole circle week coaxial; Rotating disk index plate 31 is coaxial with center circumferential 22.
Carry out the device embodiment bis-of batch machining to being distributed in porous on circumference
The present embodiment and embodiment mono-are basic identical, and its difference is, referring to Fig. 5, also comprises drill bit guide plate 4, and drill bit guide plate 4 is placed in drill jig substrate 2 times, and the distance of drill bit guide plate 4 and drill jig substrate 2 is less than the length of drill bit or screw tap 12.
Carry out the processing technology embodiment mono-of batch machining to being distributed in porous on cloth hole circle week
Review Fig. 3, the present embodiment processing is distributed on multiple circular holes or the screwed hole 62 on cloth hole circle week, and circular hole or screwed hole 62 have 4x6,4x4 is individual, 4x2 is individual.
The first step, review Fig. 1, group drill bit assembly or ***ine are attacked to assembly 11 to be fixed on vertical hydraulic drilling machine 1, indexing fixture with rotating disk index plate 31 3 is fixed on to the below of drill jig substrate 2, review Fig. 4, bearing locating hole 21 is distributed in the center circumferential 22 of drill jig substrate 2, center circumferential 22 and coaxial and equal diameters of cloth hole circle weeks 61, each bearing locating hole 21 is with to be distributed in one of them circular hole or screwed hole 62 on cloth hole circle week 61 coaxial, in 3 center circumferential 22 of drill jig substrate 2, be distributed with respectively 6, 4, 2 drill bits or screw tap, review Fig. 3, uniform 4 the calibration pin clamps 311 of rotating disk index plate periphery, rotating disk index plate is divided into 4 intervals by the center of rotating disk index plate to the RADIAL of calibration pin clamp 311, circular hole or screwed hole 62 are divided equally in each interval,
Second step, review Fig. 3, part 6 to be processed is placed on the rotating disk index plate 31 of indexing fixture, make rotating disk index plate 31 center concentric with the cloth hole circle week 61 of part to be processed, on indexing fixture, there is a calibration latch 312, indexing fixture is by part 6 clamping and positioning to be processed, and one of them calibration pin clamp 311 is blocked by calibration latch 312;
The 3rd step, review Fig. 1, drill bit or screw tap 12 drive rotation by vertical hydraulic drill press spindle motor, and drill bit or screw tap 12 are done once by the hydraulic-driven of vertical hydraulic drilling machine to move up and down, 12 first circular holes or screwed hole 621 on part 6 to be processed, are processed, as shown in Figure 6;
The 4th step, review Fig. 3, calibration pin clamp 311 and calibration latch 312 are separated, rotate rotating disk index plate 31, adjacent next calibration pin clamp 311 is forwarded to the relative position of calibration latch 312 and blocked by calibration latch, repeat the 3rd step, on part 6 to be processed, processed 12 second batch circular holes or screwed hole 622, as shown in Figure 7; Again repeat above-mentioned action, on part 6 to be processed, processed 12 the 3rd batch of circular holes or screwed hole 623, as shown in Figure 8; Again repeat above-mentioned action, on part 6 to be processed, processed 12 the 4th batch of circular holes or screwed hole 624, as shown in Figure 9, so far, completed the processing for the treatment of 4x6,4x4 of processing parts, a 4x2 circular hole or screwed hole 62.
Carry out the embodiment bis-of the processing technology of batch machining to being distributed in porous on cloth hole circle week
The present embodiment and embodiment mono-are basic identical, and its difference is, referring to Figure 10, processes multiple circular holes or screwed hole 62 on the cloth hole circle week 61 that is distributed on part 6 to be processed, and circular hole or screwed hole 62 have 2x11,2x9 is individual, 2x5 is individual.Referring to Figure 11, in 3 center circumferential 22 of drill jig substrate 2, be distributed with respectively 11,9,5 drill bits or screw tap 12, uniform 2 the calibration pin clamps 311 of rotating disk index plate periphery, the center of rotating disk index plate is divided into 2 intervals to the RADIAL of calibration pin clamp 311 by rotating disk index plate, and circular hole or screwed hole 62 are divided equally in each interval, drill bit or screw tap 12 are done once by the hydraulic-driven of vertical hydraulic drilling machine to move up and down, as shown in figure 12, 25 first circular holes or screwed hole 625 on part 6 to be processed, are processed, review Fig. 3, calibration pin clamp 311 and calibration latch 312 are separated, rotate rotating disk index plate 31, another adjacent calibration pin clamp 311 is forwarded to the relative position of calibration latch 312 and blocked by calibration latch, repeat the 3rd step, as shown in figure 13, 25 second batch circular holes or screwed hole 626 on part 6 to be processed, are processed, completed the 2x11 that treats processing parts 6, 2x9, the processing of 2x5 circular hole or screwed hole 62.
Carry out the embodiment tri-of the processing technology of batch machining to being distributed in porous on cloth hole circle week
The present embodiment and embodiment mono-are basic identical, its difference is, referring to Figure 14, process multiple circular holes or screwed hole 62 on the cloth hole circle week 61 that is distributed on part 6 to be processed, circular hole or screwed hole 62 have 3x10,3x7 is individual, 3x4 is individual, uniform 3 the calibration pin clamps 311 of rotating disk index plate periphery, the center of rotating disk index plate is divided into 3 intervals to the RADIAL of calibration pin clamp 311 by rotating disk index plate, and circular hole or screwed hole 62 are divided equally in each interval.Referring to Figure 15, in 3 center circumferential 22 of drill jig substrate 2, be distributed with respectively 10,7,4 drill bits or screw tap 12, drill bit or screw tap 12 are done once by the hydraulic-driven of vertical hydraulic drilling machine to move up and down, as shown in figure 16, 21 first circular holes or screwed hole 627 on part 6 to be processed, are processed, calibration pin clamp 311 and calibration latch 312 are separated, rotate rotating disk index plate 31, adjacent next calibration pin clamp 311 is forwarded to the relative position of calibration latch 312 and blocked by calibration latch, repeat the 3rd step, as shown in figure 17, 21 second batch circular holes or screwed hole 628 on part 6 to be processed, are processed, repeat again calibration pin clamp 311 and calibration latch 312 to separate, rotate rotating disk index plate 31, adjacent next calibration pin clamp 311 is forwarded to the relative position of calibration latch 312 and blocked by calibration latch, repeat the 3rd step, as shown in figure 18, 21 the 3rd batch of circular holes or screwed hole 628 on part 6 to be processed, are processed, completed the 3x10 that treats processing parts 6, 3x7, the processing of 3x4 circular hole or screwed hole 62.
Carry out the processing technology embodiment tetra-of batch machining to being distributed in porous on circumference
The present embodiment and embodiment mono-are basic identical, and its difference is, referring to Fig. 5, also comprises drill bit guide plate 4, and drill bit guide plate 4 is placed in drill jig substrate 2 times, and the distance of drill bit guide plate 4 and drill jig substrate 2 is less than the length of drill bit or screw tap 12.

Claims (5)

1. carry out a device for batch machining to being distributed in porous on circumference, for processing the multiple circular holes or the screwed hole that are distributed on cloth hole circle week, described circular hole or screwed hole have mn, n >=1, and m >=1, comprises
Vertical hydraulic drilling machine, described vertical hydraulic drilling machine has group drill bit assembly or ***ine to attack assembly, and described group of drill bit assembly or ***ine are attacked assembly drill bit or screw tap;
Drill jig substrate, has bearing locating hole on described drill jig substrate, and drill bit or screw tap that described group of drill bit assembly or ***ine are attacked in assembly are supported on described bearing locating hole by bearing;
It is characterized in that:
Indexing fixture, described indexing fixture comprises rotating disk index plate;
Described drill bit or screw tap have n, described bearing locating hole is distributed in the center circumferential of described drill jig substrate, described center circumferential and described cloth hole circle week coaxial also equal diameters, each described bearing locating hole be distributed on described cloth hole circle week one of them described in circular hole or screwed hole coaxial;
Described rotating disk index plate is coaxial with described center circumferential, uniform m calibration pin clamp of described rotating disk index plate periphery, the center of described rotating disk index plate is divided into m interval to the RADIAL of described calibration pin clamp by described rotating disk index plate, and described circular hole or screwed hole are divided equally in each interval.
2. the device that carries out batch machining to being distributed in porous on circumference according to claim 1, is characterized in that: described m=4.
3. the device that carries out batch machining to being distributed in porous on circumference according to claim 1; it is characterized in that: also comprise drill bit guide plate; described drill bit guide plate is placed under described drill jig substrate, and the distance of described drill bit guide plate and described drill jig substrate is less than the length of described drill bit.
4. according to the device that carries out batch machining to being distributed in porous on circumference described in claims 1 to 3 any one, it is characterized in that: also comprise guide rail slide unit, described indexing fixture is located on described guide rail slide unit, one end of described guide rail slide unit and described center circle just to and be fixed in the frame of described vertical hydraulic drilling machine.
5. according to the device that carries out batch machining to being distributed in porous on circumference described in claims 1 to 3 any one, it is characterized in that: have p described cloth hole circle week, p>=1, the diameter in described p cloth hole circle week increases progressively and with one heart, the described circular hole or the screwed hole that are distributed on respectively described p cloth hole circle week have mn 1individual, mn 2individual ... mn pindividual.
CN201420168446.0U 2014-04-09 2014-04-09 Batch machining device for multiple holes uniformly formed in circumferences Expired - Fee Related CN203887261U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420168446.0U CN203887261U (en) 2014-04-09 2014-04-09 Batch machining device for multiple holes uniformly formed in circumferences

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420168446.0U CN203887261U (en) 2014-04-09 2014-04-09 Batch machining device for multiple holes uniformly formed in circumferences

Publications (1)

Publication Number Publication Date
CN203887261U true CN203887261U (en) 2014-10-22

Family

ID=51713709

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420168446.0U Expired - Fee Related CN203887261U (en) 2014-04-09 2014-04-09 Batch machining device for multiple holes uniformly formed in circumferences

Country Status (1)

Country Link
CN (1) CN203887261U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105414686A (en) * 2016-02-14 2016-03-23 宋和明 Automatic positioning device for tapping

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105414686A (en) * 2016-02-14 2016-03-23 宋和明 Automatic positioning device for tapping

Similar Documents

Publication Publication Date Title
CN103894645A (en) Batch machining device and machining technology for multiple holes uniformly formed in circumferences
CN202780467U (en) Multi-shaft rotary plate machine for forming thin-walled tube end opening one time
CN103692289A (en) Horizontal indexing device
CN203887261U (en) Batch machining device for multiple holes uniformly formed in circumferences
CN204018781U (en) A kind of multistation valve flange drilling equipment
CN204234831U (en) A kind of cylinder block inclined hole process tool fixture
CN204843710U (en) Disc part circumference hole processingequipment
CN209578393U (en) A kind of multistation tapping mechanism
CN211162946U (en) Clamping device suitable for processing of gantry milling machine
CN105014280A (en) Positioning and clamping fixture for tapered pipe processing
CN202356909U (en) Tool special for drill hole of input board
CN203610792U (en) Clamping device for cylindrical gear machining
CN105312631A (en) Turnover structure of clamp for drilling holes in bottom of engine bracket
CN201552316U (en) Cylindrical workpiece radial equating-hole punching device
CN109290802A (en) A kind of drilling of y-type filter body multistation and chasing bar
CN204148676U (en) The linear cutting clamp of the narrow groove of processing circumference
CN203843227U (en) Hole machining tool
CN106736662A (en) The cylindrical hole drilling positioning fixture of gear ring
CN205271473U (en) Partition drilling equipment
CN209206919U (en) A kind of drilling of y-type filter body multistation and chasing bar
CN203945174U (en) For processing the positioning tool in belt pulley dynamic balance calibration hole
CN104289780B (en) Process the linear cutting clamp of circumference narrow slot
CN209811307U (en) Special drill jig for drilling holes in conical surface in annular and uniform distribution manner
CN202668208U (en) Adjustable porous drilling and clamping device
CN203696041U (en) Special drill jig mounted in radial drilling machine and used for processing small row pitch threaded hole

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141022

Termination date: 20160409

CF01 Termination of patent right due to non-payment of annual fee