CN202137405U - Deep hole drilling machine - Google Patents

Deep hole drilling machine Download PDF

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Publication number
CN202137405U
CN202137405U CN201120177402U CN201120177402U CN202137405U CN 202137405 U CN202137405 U CN 202137405U CN 201120177402 U CN201120177402 U CN 201120177402U CN 201120177402 U CN201120177402 U CN 201120177402U CN 202137405 U CN202137405 U CN 202137405U
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CN
China
Prior art keywords
deep hole
fixed
drilling machine
tailstock
hole drilling
Prior art date
Application number
CN201120177402U
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Chinese (zh)
Inventor
周红亮
张友为
Original Assignee
浙江西菱台钻制造有限公司
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Priority to CN201120177402U priority Critical patent/CN202137405U/en
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Publication of CN202137405U publication Critical patent/CN202137405U/en

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Abstract

The utility model provides a deep hole drilling machine, which belongs to the technical field of machining equipment and solves problems that an existing deep hole drilling machine is poorer in guidance and stability, low in machining precision and efficiency and not compact enough in structure. The deep hole drilling machine comprises a machine body, a power head and a tailstock, a horizontal slide track is arranged on the machine body, the tailstock and the power head are disposed on the slide track, a horizontal feeding spindle and a first driving motor are arranged on the power head, the first driving motor can drive the feeding spindle to rotate, one end of the feeding spindle can be connected with a cutter, a first driving mechanism capable of leading the power head to move along the slide track is disposed between the power head and the machine body, a fixture is arranged on the tailstock, and a second driving mechanism capable of leading the tailstock to move along the slide track is disposed between the tailstock and the machine body. The first driving mechanism capable of leading the power head to move along the slide track and the second driving mechanism capable of leading the tailstock to move along the slide track are arranged on the machine body of the deep hole drilling machine, and accordingly, the deep hole drilling machine is reasonable in design and compact in structure. In addition, a guide track and a guide seat are disposed on the machine body, so that deep hole machining precision is improved.

Description

A kind of deep hole drilling machine
Technical field
The utility model belongs to the machining equipment technical field, relates to a kind of deep hole drilling machine, particularly a kind of horizontal digital-control deep hole drilling machine.
Background technology
Deep hole drilling machine is to adopt special deep hole drill, and drill bit is done the straight-line feed motion, the lathe of workpiece rotation deep hole drilling.Be different from traditional deep hole processing equipment, deep hole drilling machine relies on specific drilling technology, and draw ratio is carried out Drilling Operations greater than 10 deep hole hole system and accurate shallow bore hole, has high accuracy, high efficiency and high conforming advantage.Deep hole drilling machine can be divided into horizontal deephole drilling machine, vertical deep hole drilling machine and three-dimensional formula deep hole drilling machine by the main shaft deployment scenarios.Along with progress of science and technology, Numeric Control Technology constantly develops and is ripe, has occurred NC deep hole drilling machine on the market, and it has higher machining accuracy and working (machining) efficiency.
For example, Chinese patent [patent No. ZL200620200608.X; Notification number CN200974131Y] a kind of NC deep hole drilling machine is disclosed, comprise lathe bed, tailstock, anchor clamps, leading truck, bracing frame, drill rod box, transmission case and cooling system, the drilling rod main shaft is housed on drill rod box; On the drilling rod main shaft, drilling rod is housed; Drilling rod main shaft and drilling rod are supported on the bracing frame, it is characterized in that: suspension type operation support is housed on lathe bed, on suspension type operation support, numerical control device is housed; Numerical control device connects servomotor and main transformer frequency motor; Servomotor connects transmission case, and transmission case connects right screw mandrel through gear, and drill rod box is connected on the right screw mandrel; Main transformer is motor jointed rod main shaft frequently.
Above-mentioned NC deep hole drilling machine can be accomplished deep hole machining, and automaticity is higher.But the problem that exists is: 1, guiding and less stable, and cutter stability is not high in the process; 2, have only drilling rod to rotate in the processing, machining accuracy and efficient are not high; 2, the structure of existing deep hole drilling machine is compact inadequately, and occupation space is big.
Summary of the invention
The purpose of the utility model is to have the problems referred to above to existing technology, has proposed a kind of compact conformation, the deep hole drilling machine that machining accuracy is high.
The purpose of the utility model can realize through following technical proposal: a kind of deep hole drilling machine; Comprise lathe bed, unit head and tailstock; It is characterized in that described lathe bed is provided with horizontally disposed slide rail, described tailstock and unit head are arranged on the slide rail; Described unit head is provided with horizontally disposed feeding main shaft and the drive motors one that can drive the feeding main axis rotation, and an end of described feeding main shaft can link to each other with cutter; Be provided with the driving mechanism one that unit head is moved along slide rail between described unit head and the lathe bed; Described tailstock is provided with anchor clamps, is provided with the driving mechanism two that tailstock is moved along slide rail between described tailstock and the lathe bed.
This deep hole drilling machine is used to accomplish the deep hole machining to workpiece, the operation principle of this deep hole drilling machine: clamping workpiece is on the anchor clamps of tailstock, and cutter is fixed on the feeding main shaft of unit head.Add man-hour, drive motors one drives the feeding main axis rotation, and driving mechanism one drives unit head and does feed motion along slide rail, and cutter and workpiece relatively rotate, and the blade as-machined workpiece surface of cutter is up to the deep hole that processes the required diameter and the degree of depth.Can also regulate the position of tailstock through driving mechanism two, thereby change the clamping position of anchor clamps, satisfy the processing needs of the workpiece of different size.The compact conformation of this deep hole drilling machine, reasonable in design, machining accuracy is high.
In above-mentioned deep hole drilling machine, described tailstock is provided with horizontally disposed rotary main shaft, and described clamps is fixed with the drive motors three of ability driven in rotation main shaft with respect to the reverse rotation of feeding main shaft on the described tailstock on rotary main shaft.Can drive workpiece and cutter backward rotation through anchor clamps, reduce the hole degree of skewness in the processing, improve machining accuracy.
In above-mentioned deep hole drilling machine, the axle center of the axle center of described rotary main shaft and feeding main shaft coincides.Make the axle center of the workpiece of clamping on anchor clamps and the axis coinciding of cutter.
In above-mentioned deep hole drilling machine, described driving mechanism one comprises oil cylinder and oil supply mechanism, and the cylinder body of described oil cylinder is fixed on the unit head, and the piston rod end of oil cylinder is fixed on the lathe bed; Described oil supply mechanism is connected with the oil pocket of oil cylinder.The feeding of hydraulic oil cylinder driving unit head, feed motion is steady.
In above-mentioned deep hole drilling machine; Described driving mechanism one comprises drive motors two, screw mandrel one and screw one; Described drive motors two is fixed on the lathe bed, and described screw mandrel one is axially fixed on the lathe bed, and an end of screw mandrel one links to each other with the main shaft of drive motors two; Described screw one is set on the screw mandrel one and screw one is fixed on the unit head.The feeding of the secondary driving of screw mandrel screw unit head, the distance of feeding is longer, can accomplish the bigger deep hole machining of the degree of depth.
In above-mentioned deep hole drilling machine, described driving mechanism two comprises the screw mandrel two that is axially fixed on the lathe bed, and an end of screw mandrel two is fixed with crank; Be arranged with screw two on the described screw mandrel two, described screw two is fixed on the tailstock.Operating personnel can regulate the position of tailstock through crank, to satisfy the needs of different processing conditions.
In above-mentioned deep hole drilling machine, described slide rail is provided with several slides that can move along slide rail.Usually under the state, slide is fixed through clamping screw and slide rail, and is fixing reliable; Unscrew clamping screw, slide can slide along slide rail, the position-adjustable of slide.
In above-mentioned deep hole drilling machine; Be fixed with chip removal seat on the described slide with cavity; The side that described chip removal seat is relative with unit head is provided with and the equal guide one to one in cutter structure and position, and described guide is connected on the chip removal seat through bearing fixing.The chip removal seat plays the effect of collecting smear metal and cooling-lubricant, and guide can play the guiding role to the feed motion of cutter, improves the precision of deep hole machining.
In above-mentioned deep hole drilling machine, the side that described chip removal seat is relative with tailstock is provided with scroll chuck, all is fixed with locating wheel on each claw of described scroll chuck, and the chuck body of described scroll chuck is fixed on the chip removal seat.Scroll chuck and chip removal seat are fixed, and relatively rotating of workpiece and scroll chuck relies on locating wheel to realize, add man-hour, locating wheel is resisted against on the outer surface of workpiece, reduces the wearing and tearing of claw to surface of the work.
In above-mentioned deep hole drilling machine, be fixed with guide holder on the described slide, described guide holder between chip removal seat and unit head, on the described guide holder through bearing fixing be connected with one with the equal guide one to one in cutter structure and position.Improve the precision of deep hole machining.
In above-mentioned deep hole drilling machine, be fixed with two linear bearings on the described unit head, two linear bearings lay respectively at the both sides of feeding main shaft, are equipped with a guide rail on each described linear bearing, and an end of guide rail is fixed on the chip removal seat.Guide rail play the guiding role to the horizontal feed motion of unit head, makes feed motion steadily, accurately, improves the deep hole machining precision.
In above-mentioned deep hole drilling machine, also be arranged with linear bearing on the described guide rail, described linear bearing is fixed on the guide holder.The linear bearing maneuvering load is little, can make guide holder along the guide rail smooth sliding, is convenient to the adjusting of guide holder position.
Compared with prior art, the advantage of this deep hole drilling machine is:
1, the lathe bed of this deep hole drilling machine is provided with and makes driving mechanism one that unit head moves along slide rail and the driving mechanism two that tailstock is moved along slide rail, reasonable in design, compact conformation.
2, this deep hole drilling machine is provided with the scroll chuck that is fixed on the chip removal seat, makes the clamping of workpiece more stable, and machining accuracy is high; The claw of scroll chuck is provided with locating wheel, and the workpiece location is reliable, when workpiece rotates with respect to scroll chuck, avoids claw to scratch surface of the work.
3. this deep hole drilling machine is provided with guide rail and guide holder, the offset in the minimizing unit head horizontal feed motion process and the vibration of cutter, the machining accuracy of raising deep hole.
Description of drawings
Fig. 1 is the main TV structure sketch map of this deep hole drilling machine lathe bed.
Fig. 2 is the plan structure sketch map of this deep hole drilling machine lathe bed.
Fig. 3 is the structural representation of this deep hole drilling machine unit head.
Fig. 4 is this deep hole drilling machine slide and the main TV structure sketch map that is fixed on the equipment on the slide.
Fig. 5 is this deep hole drilling machine slide and the plan structure sketch map that is fixed on the equipment on the slide.
Fig. 6 is the structural representation of the scroll chuck of this deep hole drilling machine.
Among the figure, 1, lathe bed; 2, slide rail; 3, unit head; 31, feeding main shaft; 311, drive motors one; 4, tailstock; 41, anchor clamps; 42, rotary main shaft; 421, drive motors three; 5, driving mechanism one; 51, drive motors two; 52, screw mandrel one; 53, screw one; 6, driving mechanism two; 61, screw mandrel two; 62, screw two; 63, crank; 64, dial; 7, slide; 8, chip removal seat; 9, guide; 10, scroll chuck; 101, claw; 102, locating wheel; 11, guide holder; 12, guide rail; 13, linear bearing; 14, travel switch; 15, gag lever post; 16, positioning seat; 17, fixed cover; 18, slide block.
The specific embodiment
Below be the specific embodiment of the utility model and combine accompanying drawing, the technical scheme of the utility model is done further to describe, but the utility model is not limited to these embodiment.
Embodiment one:
This deep hole drilling machine is used for the deep hole machining of workpiece, comprises lathe bed 1, slide rail 2, unit head 3 and tailstock 4.Like Fig. 1, Fig. 2 and shown in Figure 3; Tailstock 4 is arranged on slide rail 2 with unit head 3, and unit head 3 is provided with feeding main shaft 31, tailstock 4 is provided with to be provided with between driving mechanism 1, tailstock 4 and the lathe bed 1 between rotary main shaft 42, unit head 3 and the lathe bed 1 and is provided with driving mechanism 26.
Like Fig. 1, Fig. 2 and shown in Figure 3, in the present embodiment, driving mechanism 1 comprises drive motors 2 51, screw mandrel 1 and screw 1, and drive motors 2 51 is fixed on the electric machine support of lathe bed 1, and screw mandrel 1 is through positioning seat 16 and lathe bed 1 axial location.Drive motors 2 51 links to each other with screw mandrel 1 through the belt wheel transmission mechanism, is fixed with driving pulley on the main shaft of drive motors 2 51, and an end of screw mandrel 1 is fixed with driven pulley, links to each other through being with synchronously between driving pulley and the driven pulley.Screw 1 is fixed with unit head 3 and is cooperated with screw mandrel 1, and when drive motors drove screw mandrel one 52 rotations, screw 1 can drive unit head 3 and do feed motion.
As shown in Figures 2 and 3; Driving mechanism 26 comprises screw mandrel 2 61, screw 2 62 and crank 63; Screw mandrel 2 61 is through positioning seat 16 and lathe bed 1 axial location, and screw 2 62 is fixed on the tailstock 4 and with screw mandrel 2 61 and cooperates, and the rearward end of screw mandrel 2 61 also is fixed with crank 63; When operating personnel rotated 2 61 rotations of crank 63 drive screw mandrels, screw 2 62 can drive tailstock 4 and slide along slide rail 2.Lathe bed 1 is provided with dial 64, can read the displacement of tailstock 4 with respect to lathe bed 1 through crank 63 with respect to the scale value that dial 64 rotates, and is convenient to the adjusting of tailstock 4 positions.
Like Fig. 3 and shown in Figure 5, unit head 3 is provided with drive motors 1, and drive motors drives 31 rotations of feeding main shaft through the belt wheel transmission mechanism, on the feeding main shaft 31 cutter is installed.Tailstock 4 is provided with rotary main shaft 42, rotary main shaft 42 and tailstock 4 axial location, and anchor clamps 41 are fixed on the rotary main shaft 42, and tailstock 4 is provided with drive motors 3 421, and drive motors 3 421 links to each other through the belt wheel transmission mechanism with rotary main shaft 42.Rotary main shaft 42 and anchor clamps 41 axially offer the resigning hole of a perforation, and workpiece is clamped on the anchor clamps 41 after can passing resigning hole from the end of rotary main shaft 42.The axle center of the axle center of rotary main shaft 42 and feeding main shaft 31 coincides.Deep hole drilling machine adds man-hour, and feeding main shaft 31 drives cutter and rotates, and rotary main shaft 42 drives workpiece and rotates the direction of rotation of cutter and workpiece simultaneously.Under cutter and the counter-rotational condition of workpiece, the hole degree of skewness of the deep hole that processes is minimum, and the precision of deep hole is high.
Like Fig. 4 and shown in Figure 5; Be provided with guide holder 11 and chip removal seat 8 between unit head 3 and the tailstock 4, guide holder 11 is separately fixed on the slide 7 with chip removal seat 8, and slide 7 is fixing through clamping screw and slide rail 2; After unclamping clamping screw, slide 7 can slide with respect to slide rail 2.Have the pilot hole of two horizontal distribution on unit head 3, guide holder 11 and the chip removal seat 8 respectively in both sides; Cover is fixed with fixed cover 17 in the pilot hole of chip removal seat 8; Be fixed with guide rail 12 on the fixed cover 17, guide rail 12 passes the pilot hole on chip removal seat 8, guide holder 11 and the unit head 3 successively, and its end is concordant with slide rail 2; Be provided with linear bearing 13 between guide rail 12 and the pilot hole
Also be provided with a slide block 18 on the guide rail 12, offer the resigning hole that supplies cutter to pass on guide holder 11, chip removal seat 8 and the slide block 18 respectively.Resigning hole is fixed with respectively and the equal guide 9 one to one in cutter structure and position, and guide 9 is installed in the resigning hole through bearing.The effect of slide block 18 is to prevent that vibration from appearring in cutter in process and problem that the deep hole quality that causes processing descends, improves the stability and the precision of deep hole machining.
Like Fig. 4, Fig. 5 and shown in Figure 6; Scroll chuck 10 is fixed on the chip removal seat 8, and the end of each claw 101 is hinged with locating wheel 102, and scroll chuck 10 is arranged with anchor clamps 41 in the same way; And both are located along the same line by center line, and 10 pairs of workpiece of scroll chuck play supporting role.Add man-hour, an end of workpiece is positioned on the scroll chuck 10, and the adjusting nut of the scroll chuck 10 of screwing makes locating wheel 102 on scroll chuck 10 claws 101 be close to the outer surface of workpiece.Workpiece and scroll chuck 10 relatively rotate, and locating wheel 102 rolls with workpiece, and locating wheel 102 is rolling friction with the friction of surface of the work, and the workpiece stability of rotation is avoided surface of the work is caused damage.
The operation principle of this deep hole drilling machine: clamping workpiece is on the anchor clamps 41 of tailstock 4, and cutter is fixed on the feeding main shaft 31 of unit head 3.Add man-hour; Drive motors 1 drives 31 rotations of feeding main shaft, and driving mechanism 1 drives unit head 3 and does feed motion along slide rail 2, and drive motors 2 51 driven rotary main shafts 42 rotate; The blade as-machined workpiece surface of cutter is up to the deep hole that processes the required diameter and the degree of depth.Can also regulate the position of tailstock 4 through driving mechanism 26, thereby change the clamping position of anchor clamps 41, satisfy the processing needs of the workpiece of different size.The compact conformation of this deep hole drilling machine, reasonable in design, machining accuracy is high.
This deep hole drilling machine can also adopt digital control system control drive motors 1, drive motors 2 51 and drive motors 3 421; The sidepiece of unit head 3 is provided with gag lever post 15; And travel switch 14 is set at lathe bed 1 correspondence position; The initial position and the extreme position of 3 feed motions of control unit head play the purpose that automation is processed, and significantly improve working (machining) efficiency and product precision.
Embodiment two:
The technical scheme of the technical scheme of present embodiment and embodiment one is basic identical; Difference is; In the present embodiment, driving mechanism 1 comprises oil cylinder and oil supply mechanism, and the cylinder body of oil cylinder is fixed on the unit head 3; The piston rod end of oil cylinder is fixed on the lathe bed 1, and oil supply mechanism is connected with the oil pocket of oil cylinder.Adopt 3 feedings of hydraulic oil cylinder driving unit head, feed motion is steady.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as lathe bed 1, slide rail 2, unit head 3, feeding main shaft 31, drive motors 1, tailstock 4, anchor clamps 41, rotary main shaft 42, drive motors 3 421, driving mechanism 1, drive motors 2 51, screw mandrel 1, screw 1, driving mechanism 26, screw mandrel 2 61, screw 2 62, crank 63, dial 64, slide 7, chip removal seat 8, guide 9, scroll chuck 10, claw 101, locating wheel 102, guide holder 11, guide rail 12, linear bearing 13, travel switch 14, gag lever post 15, positioning seat 16, fixed cover 17, slide block 18 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain the essence of the utility model more easily; It all is contrary with the utility model spirit being construed to any additional restriction to them.

Claims (10)

1. deep hole drilling machine; Comprise lathe bed (1), unit head (3) and tailstock (4); It is characterized in that described lathe bed (1) is provided with horizontally disposed slide rail (2), described tailstock (4) and unit head (3) are arranged on the slide rail (2); Described unit head (3) is provided with horizontally disposed feeding main shaft (31) and can drives the drive motors one (311) of feeding main shaft (31) rotation, and an end of described feeding main shaft (31) can link to each other with cutter; Be provided with the driving mechanism one (5) that unit head (3) is moved along slide rail (2) between described unit head (3) and the lathe bed (1); Described tailstock (4) is provided with anchor clamps (41), is provided with the driving mechanism two (6) that tailstock (4) is moved along slide rail (2) between described tailstock (4) and the lathe bed (1).
2. deep hole drilling machine according to claim 1; It is characterized in that; Described tailstock (4) is provided with horizontally disposed rotary main shaft (42); Described anchor clamps (41) are fixed on the rotary main shaft (42), are fixed with the drive motors three (421) of ability driven in rotation main shaft (42) with respect to feeding main shaft (31) reverse rotation on the described tailstock (4).
3. deep hole drilling machine according to claim 1 is characterized in that, described driving mechanism one (5) comprises oil cylinder and oil supply mechanism, and the cylinder body of described oil cylinder is fixed on the unit head (3), and the piston rod end of oil cylinder is fixed on the lathe bed (1); Described oil supply mechanism is connected with the oil pocket of oil cylinder.
4. deep hole drilling machine according to claim 1; It is characterized in that; Described driving mechanism one (5) comprises drive motors two (51), screw mandrel one (52) and screw one (53); Described drive motors two (51) is fixed on the lathe bed (1), and described screw mandrel one (52) is axially fixed on the lathe bed (1), and an end of screw mandrel one (52) links to each other with the main shaft of drive motors two (51); Described screw one (53) is set on the screw mandrel one (52) and screw one (53) is fixed on the unit head (3).
5. deep hole drilling machine according to claim 1 is characterized in that, described driving mechanism two (6) comprises the screw mandrel two (61) that is axially fixed on the lathe bed (1), and an end of screw mandrel two (61) is fixed with crank (63); Be arranged with screw two (62) on the described screw mandrel two (61), described screw two (62) is fixed on the tailstock (4).
6. according to each described deep hole drilling machine in the claim 1 to 5, it is characterized in that described slide rail (2) is provided with several can be along the mobile slide (7) of slide rail (2).
7. deep hole drilling machine according to claim 6; It is characterized in that; Be fixed with chip removal seat (8) on the described slide (7) with cavity; The side that described chip removal seat (8) is relative with unit head (3) is provided with and the equal guide (9) one to one in cutter structure and position, and described guide (9) is connected on the chip removal seat (8) through bearing fixing.
8. deep hole drilling machine according to claim 7; It is characterized in that; The side that described chip removal seat (8) is relative with tailstock (4) is provided with scroll chuck (10); All be fixed with locating wheel (102) on each claw (101) of described scroll chuck (10), the chuck body of described scroll chuck (10) is fixed on the chip removal seat (8).
9. deep hole drilling machine according to claim 6; It is characterized in that; Be fixed with guide holder (11) on the described slide (7); Described guide holder (11) is positioned between chip removal seat (8) and the unit head (3), described guide holder (11) go up through bearing fixing be connected with one with the equal guide (9) one to one in cutter structure and position.
10. deep hole drilling machine according to claim 7; It is characterized in that; Be fixed with two linear bearings (13) on the described unit head (3); Two linear bearings (13) lay respectively at the both sides of feeding main shaft (31), are equipped with a guide rail (12) on each described linear bearing (13), and an end of guide rail (12) is fixed on the chip removal seat (8).
CN201120177402U 2011-05-30 2011-05-30 Deep hole drilling machine CN202137405U (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201120177402U CN202137405U (en) 2011-05-30 2011-05-30 Deep hole drilling machine

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102198529A (en) * 2011-05-30 2011-09-28 浙江西菱台钻制造有限公司 Deep hole drilling machine
CN103111652A (en) * 2013-01-31 2013-05-22 张俊辉 Hole drilling tool
CN104493241A (en) * 2014-12-15 2015-04-08 济南玫德铸造有限公司 Drilling machine special for deep hole
CN107471455A (en) * 2017-08-06 2017-12-15 乔斌 Drilling equipment for carborundum seal
CN108161070A (en) * 2017-12-18 2018-06-15 丁玉琴 A kind of deep hole drilling apparatus
KR101931169B1 (en) * 2018-06-07 2018-12-20 김금진 Apparatus for metal round bar trepanning
CN110976966A (en) * 2019-12-30 2020-04-10 重庆市巴山液压附件厂有限公司 Hole machining device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102198529A (en) * 2011-05-30 2011-09-28 浙江西菱台钻制造有限公司 Deep hole drilling machine
CN102198529B (en) * 2011-05-30 2013-10-02 浙江西菱股份有限公司 Deep hole drilling machine
CN103111652A (en) * 2013-01-31 2013-05-22 张俊辉 Hole drilling tool
CN104493241A (en) * 2014-12-15 2015-04-08 济南玫德铸造有限公司 Drilling machine special for deep hole
CN104493241B (en) * 2014-12-15 2017-02-01 玫德集团有限公司 Drilling machine special for deep hole
CN107471455A (en) * 2017-08-06 2017-12-15 乔斌 Drilling equipment for carborundum seal
CN108161070A (en) * 2017-12-18 2018-06-15 丁玉琴 A kind of deep hole drilling apparatus
KR101931169B1 (en) * 2018-06-07 2018-12-20 김금진 Apparatus for metal round bar trepanning
CN110976966A (en) * 2019-12-30 2020-04-10 重庆市巴山液压附件厂有限公司 Hole machining device

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C56 Change in the name or address of the patentee

Owner name: ZHEJIANG XILING CO., LTD.

Free format text: FORMER NAME: ZHEJIANG XESTLING BENCH DRILL MANUFACTURE CO., LTD.

CP01 Change in the name or title of a patent holder

Address after: Taizhou City, Zhejiang province 317521 Zeguo town Muyu electromechanical Industrial Park

Patentee after: ZHEJIANG XILING CO., LTD.

Address before: Taizhou City, Zhejiang province 317521 Zeguo town Muyu electromechanical Industrial Park

Patentee before: Zhejiang West Diamond Bench Drill Manufacturer Co., Ltd.