CN108941675B - Center hole drilling device - Google Patents

Center hole drilling device Download PDF

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Publication number
CN108941675B
CN108941675B CN201810849880.8A CN201810849880A CN108941675B CN 108941675 B CN108941675 B CN 108941675B CN 201810849880 A CN201810849880 A CN 201810849880A CN 108941675 B CN108941675 B CN 108941675B
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China
Prior art keywords
block
supporting
rod
fixed
columns
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CN201810849880.8A
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CN108941675A (en
Inventor
潘启鸾
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HAIMEN HUANGHAI PIONEER PARK SERVICES Co.,Ltd.
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CHONGQING TIANDELI INDUSTRY Co Ltd
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Publication of CN108941675A publication Critical patent/CN108941675A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
    • 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
    • B23B39/22—Drilling machines with a plurality of working-spindles; Drilling automatons with working-spindles in opposite headstocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
    • B23B47/26—Liftable or lowerable drill heads or headstocks; Balancing arrangements therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06—Work-clamping means
    • B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Jigs For Machine Tools (AREA)

Abstract

The invention belongs to the technical field of machine tools with the characteristics of a retention or clamping device or a quick operation device, and discloses a central hole drilling device which comprises a frame and a workbench, wherein the workbench is provided with two supporting parts, a clamping part and a drilling part; the supporting parts comprise mounting columns and supporting columns; the clamping part comprises an L-shaped rod consisting of a cross rod and a vertical rod, and the cross rod penetrates through the side wall of the mounting column; the drilling part comprises a U-shaped communicating pipe consisting of two transverse pipes and a vertical pipe, and a sliding plate is sealed in the transverse pipes in a sliding manner; a moving rod penetrating through the mounting column is fixed on the sliding plate at the lower part, the sliding plate further comprises a fixed block and a connecting block, a threaded hole is formed in the fixed block, a rotating shaft is connected with the threaded hole in a threaded manner, a drill bit is fixed on the rotating shaft, and a motor for driving the rotating shaft is further arranged on the rack; the connecting block is provided with a groove, and the fixed block is provided with a lug; the sliding plate on the upper part is provided with a push rod. The invention solves the problem that the central holes at two ends of the crankshaft of the general gasoline engine in the prior art can only be independently drilled, so that the drilling efficiency is low.

Description

Center hole drilling device
Technical Field
The invention belongs to the field of machine tools with retention or clamping devices or quick operation devices, and particularly relates to a central hole drilling device.
Background
The general-purpose electromechanical crankshaft is a crankshaft which can be used in various mechanical equipment, mainly includes two main journals and balance blocks positioned between the main journals, and between the main journals and the balance blocks there are projections. The machining of the crankshaft of the general gasoline engine mainly comprises the steps of drilling a central hole on a blank, turning and milling a key groove, wherein the step of drilling the central hole is convenient for subsequent turning and fixing of the key groove so as to ensure the machining precision.
Present drilling equipment mainly includes a supporting bench, sets up the tight piece of clamp and the drill bit of sliding connection on a supporting bench, and the one end that will lead to the quick-witted bent axle during drilling supports tightly with a supporting bench, and the tight piece of clamp slides for press from both sides tight piece and support tightly with the arch, realize will leading to the fixed of quick-witted bent axle, restart the drill bit, drill through the drill bit to leading to the quick-witted bent axle.
However, the drilling device has the following technical problems: during drilling, only one end of the general engine crankshaft can be drilled at one time, so that the drilling efficiency is low.
Disclosure of Invention
The invention aims to provide a center hole drilling device to solve the problem that in the prior art, center holes at two ends of a crankshaft of a general gasoline engine can only be independently drilled, so that the drilling efficiency is low.
In order to achieve the purpose, the invention provides the following technical scheme that the center hole drilling device comprises a rack and a workbench arranged on the rack, wherein two supporting parts, two clamping parts and two drilling hole parts are symmetrically arranged on the workbench; the supporting parts comprise hollow mounting columns which are fixed on the supporting table, supporting columns are connected in the mounting columns in a sliding mode, the bottoms of the supporting columns are wedge surfaces, supporting blocks are arranged at the tops of the supporting columns, and springs are arranged between the supporting blocks and the tops of the mounting columns; the clamping parts comprise L-shaped rods consisting of cross rods and vertical rods, the cross rods penetrate through the side walls of the mounting columns and are connected with the mounting columns in a sliding mode, and one sides of the cross rods, which are located in the cavities of the mounting columns, are wedge surfaces parallel to the bottoms of the supporting columns; the clamping parts are positioned between the two supporting parts, and a spring is arranged between the vertical rods of the two clamping parts; the drilling parts comprise U-shaped communicating pipes which are fixed on the frame and positioned on one side of the mounting column, which is far away from the L-shaped rod, the U-shaped communicating pipes comprise two transverse pipes and a vertical pipe, sliding plates are sealed in the transverse pipes in a sliding manner, and liquid is injected between the two sliding plates in the U-shaped communicating pipes; a moving rod which penetrates through the mounting column and is in sliding connection with the side wall of the mounting column is fixed on the sliding plate at the lower part, the moving rod is positioned below the cross rod, and one end of the moving rod, which is positioned in the cavity of the mounting column, is a wedge surface opposite to the bottom surface of the support column; the drill hole part also comprises a fixed block which is positioned above the moving rod and is in sliding connection with the rack, a threaded hole is formed in the fixed block, a rotating shaft is connected in the threaded hole in a threaded manner, a drill bit is fixed at one end of the rotating shaft close to the mounting column, and a motor for driving the rotating shaft is further arranged on the rack; a connecting block is arranged between the fixed block and the mounting column on the frame, a groove is arranged on the connecting block, and a convex block matched with the groove is arranged on the fixed block; the sliding plate on the upper part is provided with a push rod for driving the fixing block to move.
The principle of the technical scheme is as follows:
two main journals of the general gasoline engine crankshaft are placed on the supporting blocks, the supporting blocks are extruded under the action of gravity of the general gasoline engine crankshaft, so that the mounting columns move downwards, and the main journals of the general gasoline engine crankshaft are supported through the supporting blocks. When the mounting column moves downwards, the wedge surfaces of the wedge surfaces and the cross rods are matched, so that the cross rods slide out of the mounting column, the two cross rods move relatively, the vertical rods move relatively, the protrusions on the crankshaft of the general gasoline engine are clamped, and the crankshaft of the general gasoline engine is fixed.
After the mounting column moves downwards to the cross rod and slides out of the mounting column, the wedge surface of the mounting column is in contact with the wedge surface of the moving rod, and along with the downward movement of the mounting column, the end part of the mounting column slides along the wedge surface of the moving rod and extrudes the moving rod, so that the moving rod drives the sliding plate to move. The sliding plate is positioned in the U-shaped communicating vessel, so that the sliding plate at the upper part drives the push rod to move reversely, the push rod drives the fixed block which is abutted against the push rod to move towards the direction of the mounting column, the fixed block drives the rotating shaft and the drill bit to move, and when the mounting column moves to the bottom, the drill bit is abutted against the end part of a main journal of a crankshaft of the general gasoline engine; the rotating shaft is driven to rotate by the starting motor, and the crankshaft of the general gasoline engine can be drilled.
The beneficial effects of the technical scheme are as follows:
1. the main journal of the general gasoline engine crankshaft is supported through the supporting columns, and the protrusions on the general gasoline engine crankshaft are clamped by utilizing the relative movement of the two vertical rods, so that the general gasoline engine crankshaft can be fixed, the end parts of the main journal of the general gasoline engine crankshaft are not blocked, the two ends of the general gasoline engine crankshaft can be drilled at the same time, and the drilling efficiency is improved;
2. the supporting columns are connected in the mounting columns in a sliding mode, and can move under the action of the gravity of the general gasoline engine crankshaft, so that the transverse rods can move, the vertical rods are driven to move to clamp the general gasoline engine crankshaft, the general gasoline engine crankshaft can be clamped through the gravity of the general gasoline engine crankshaft, the mounting is very convenient, and the clamping is realized without additional operation;
3. through moving down of support column, can realize the removal of carriage release lever to cooperation U type linker makes the drill bit remove to the erection column direction, and makes the drill bit offset with the tip of expert's quick-witted bent axle, when the motor starts, just can realize boring the centre bore to the main journal of expert's quick-witted bent axle.
Furthermore, a piston barrel with a sealed top is further arranged above the workbench on the rack, a piston is connected in the piston barrel in a sliding manner, a piston rod in an inverted T shape is fixed at the bottom of the piston, and two ends of the lower part of the piston rod are respectively provided with a pressing block; the top of the piston barrel is respectively communicated with the bottoms of the two mounting columns through guide pipes.
Has the advantages that: when the support column moves downwards, gas on the lower portion of a cavity in the mounting column is gradually compressed and guided to the top of the piston barrel through the guide pipe, so that the piston is extruded downwards, the downward movement of the piston rod is realized, the pressing block is gradually close to the bulge, and when the support column moves to the bottom of the mounting column, the pressing block is abutted against the top of the lug to realize downward abutting of the bulge. Because the drill bit can give a pivoted power to the main journal when boring the centre bore, can make the logical machine bent axle have the tendency of taking place the rotation, but compress tightly the lug through the compact heap, avoid the lug to take place to rotate, consequently can avoid logical machine bent axle to take place to rotate for the precision of drilling is higher.
Furthermore, both sides of the bottom of the support column are rotatably connected with balls.
Has the advantages that: the ball rotates on the wedge surfaces of the cross rod and the moving rod, so that sliding friction among the supporting columns, the cross rod and the moving rod is changed into rolling friction, and abrasion of the mounting columns, the moving rod and the cross rod is reduced.
Furthermore, the wedge surfaces of the cross rod and the moving rod are provided with sliding grooves matched with the balls.
Has the advantages that: set up the spout and can carry on spacingly to the ball for the ball slides along the spout, thereby makes the position of removal more accurate.
Furthermore, two clamping blocks are arranged on the opposite sides of the upper parts of the vertical rods.
Has the advantages that: the clamping block is arranged, so that the clamping effect on the protrusion is better.
Further, the clamping block is a rubber block, a silica gel block or a latex block.
Has the advantages that: the coefficient of friction of rubber piece, silica gel piece and latex piece is all great, can increase frictional force for it is better to press from both sides tight effect, and rubber piece, silica gel piece and latex piece all have certain elastic deformation simultaneously, can avoid damaging with protruding bionical rigid contact the arch that leads to, consequently can avoid leading to quick-witted bent axle impaired.
Further, the top of supporting shoe is equipped with the arc wall.
Has the advantages that: the arc wall can be used for placing the main journal of logical machine bent axle, avoids leading to the machine bent axle to take place to rock the condition that drops that leads to and appear.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a sectional view taken along line B-B in fig. 1.
Detailed Description
The present invention will be described in further detail below by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a mounting column 1, a support column 11, a support block 12, an L-shaped rod 2, a cross rod 21, a vertical rod 22, a clamping block 23, a U-shaped communicating vessel 3, a sliding plate 31, a moving rod 32, a push rod 33, a rotating shaft 4, a drill bit 41, a fixed block 42, a bump 421, a connecting block 43, a groove 431, a driving gear 5, a driven gear 6, a piston barrel 7, a piston 71, a piston rod 72, a pressing block 73 and a conduit 8.
The embodiment is basically as shown in the attached figure 1:
the center hole drilling device comprises a rack and a workbench fixed on the rack, wherein the workbench is provided with two supporting parts, two clamping parts and two drilling parts, the two supporting parts are symmetrical about a plane where the longitudinal axis of the workbench is located, the two clamping parts are located between the two supporting parts, one drilling part is located on the left side of the supporting part on the left side, and the other drilling part is located on the right side of the supporting part on the right side.
Now take left supporting part, clamping part and drilling portion as the example, the supporting part is including fixing on the workstation and hollow erection column 1, and sliding connection has support column 11 in the cavity of erection column 1, and the top of support column 11 is equipped with supporting shoe 12, and the upper surface of supporting shoe 12 is equipped with the arc wall. The cover is equipped with the spring between supporting shoe 12 and the erection column 1 on the support column 11, and the both ends of spring weld respectively in supporting shoe 12 bottom and 1 top of erection column, and the bottom of support column 11 is the wedge face, and the right-hand member is higher than the left end, and both ends all rotate about support column 11 bottom and are connected with the ball.
The clamping part comprises an L-shaped rod 2, the L-shaped rod 2 comprises a cross rod 21 and a vertical rod 22 fixed at the right end of the cross rod 21, the left end of the cross rod 21 is a wedge surface parallel to the bottom surface of the supporting column 11, and the wedge surface of the cross rod 21 is also provided with a sliding groove matched with a ball; the left part of the cross rod 21 penetrates through the right side wall of the mounting column 1 and is in sliding connection with the right side wall, and a sliding block in sliding connection with the workbench is fixed at the bottom of the cross rod 21. A clamping block 23 is fixed at the right end of the vertical rod 22, the clamping block 23 is any one of a rubber block, a silica gel block or a latex block, and the rubber block is adopted in the embodiment; a spring is arranged between the vertical rods 22 of the two clamping parts, and two ends of the spring are respectively welded on the two vertical rods 22.
The drilling portion is including being located 1 left U type linker 3 of erection column, and U type linker 3 includes that two are violently managed and be located two standpipe between violently managing, and equal sliding seal has slide 31 in the violently pipe, and it has liquid to be located to annotate between two slide 31 in the U type linker 3. A moving rod 32 positioned below the cross rod 21 is fixed on the right side wall of the lower sliding plate 31, and the right part of the moving rod 32 penetrates through the left side wall of the mounting column 1 and is connected with the left side wall of the mounting column 1 in a sliding manner. The right end of the moving rod 32 is a wedge surface, the left end is higher than the right end, and a sliding groove matched with the ball is also arranged on the right end surface of the moving rod 32.
As shown in fig. 2, the drilling portion further includes a fixing block 42 slidably connected to the frame and a connecting block 43 fixed to the frame, the connecting block 43 is located between the fixing block 42 and the mounting post 1, a protrusion 421 is disposed on the upper portion of the right side of the fixing block 42, a groove 431 engaged with the protrusion 421 is disposed on the left side of the connecting block 43, and a push rod 33 abutting against the fixing block 42 is fixed to the right side of the upper sliding plate 31.
The fixed block 42 is provided with a transverse threaded hole, the threaded hole is connected with the rotating shaft 4 in a threaded manner, and the right end of the rotating shaft 4 is fixed with the drill bit 41. A motor is further fixed on the rack, a driving gear 5 is fixed on an output shaft of the motor, a driven gear 6 meshed with the driving gear 5 is rotatably connected on the rack, the rotating shaft 4 comprises a threaded section, a spline section and a smooth section which are sequentially arranged, the diameter of the smooth section is smaller than that of an installation hole of the driven gear 6, and the drill bit 41 is installed on the smooth section and can be in spline fit with the driven gear 6; when the rotary shaft 4 moves rightward, the spline section is gradually spline-fitted with the driven gear 6.
A piston barrel 7 is arranged above the middle part of the workbench on the rack, the top of the piston barrel 7 is sealed, a piston 71 is connected in the piston barrel 7 in a sliding manner, an inverted T-shaped piston rod 72 is fixed at the bottom of the piston 71, and as shown in fig. 3, a pressing block 73 is fixed at each of the left end and the right end of the bottom of the piston rod 72. The top of the piston barrel 7 is communicated with the lower part of the mounting column 1 through a conduit 8.
The specific implementation process is as follows:
two main journals that will lead to quick-witted bent axle are placed in the arc wall on supporting shoe 12, and two support columns 11 move down under the action of gravity of leading to quick-witted bent axle, and when the ball of the higher one end of wedge face of support column 11 bottom and the wedge face contact of horizontal pole 21, along with support column 11 moves down, the ball slides along the spout on the horizontal pole 21 to extrude horizontal pole 21, make horizontal pole 21 roll-off erection column 1, and drive montant 22 and remove. At this time, the vertical rods 22 on the two clamping parts move relatively, so that the bulge of the crankshaft of the general gasoline engine is gradually clamped, and the crankshaft of the general gasoline engine is fixed.
The in-process that support column 11 moved down extrudes the gas in the cavity of erection column 1 gradually for the gas of cavity lower part passes through pipe 8 and discharges into piston barrel 7 upper portion, consequently extrudees piston 71 downwards, makes piston 71 drive piston rod 72 and moves down, and compact heap 73 on the piston rod 72 gradually contacts with the protruding top of logical machine bent axle, realizes compressing tightly logical machine bent axle downwards, and carries on spacingly to lug 421, avoids logical machine bent axle to take place to rotate.
After the cross bar 21 slides out of the mounting column 1, the crankshaft of the general gasoline engine is manually extruded downwards, so that the support column 11 continues to move downwards, when the ball at the lower end of the wedge surface at the bottom of the support column 11 is in contact with the chute on the wedge surface of the movable rod 32, the ball slides along the chute on the movable rod 32 and extrudes the movable rod 32, so that the movable rod 32 slides out of the mounting column 1, and the sliding plate 31 at the lower part is driven to slide towards the direction far away from the mounting column 1.
When the sliding plate 31 at the lower part moves, liquid in the U-shaped communicating vessel 3 is extruded, so that the liquid drives the sliding plate 31 and the push rod 33 at the upper part to slide towards the direction close to the mounting column 1, and further drives the fixing block 42 to move towards the direction close to the connecting block 43, when the supporting column 11 slides to the bottom of the cavity in the mounting column 1, the bump 421 on the fixing block 42 is just positioned in the groove 431 on the connecting block 43, and the fixing of the fixing block 42 is realized. When the fixed block 42 slides, the rotating shaft 4 and the drill bit 41 are driven to approach the end face of the main journal of the general gasoline engine crankshaft, when the projection 421 on the fixed block 42 is located in the groove 431 on the connecting block 43, the end of the drill bit 41 just abuts against the middle of the end face of the main journal of the general gasoline engine crankshaft, and the spline section on the rotating shaft 4 just matches with the driven gear 6 in a spline mode.
At the moment, the motor is started again, the motor drives the driving gear 5 to rotate, the rotating shaft 4 is driven to rotate through the driven gear 6, the rotating shaft 4 is in threaded connection with the fixing block 42, and the fixing block 42 is fixed, so that the rotating shaft 4 can drive the drill bit 41 to rotate when rotating and move towards the direction close to the mounting column 1, and a center hole is drilled in the end face of a main journal of the general engine crankshaft.
It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention, which should not be construed as affecting the effectiveness of the application and the utility of the patent.

Claims (6)

1. Centre bore drilling equipment, its characterized in that: the clamping device comprises a rack and a workbench arranged on the rack, wherein two supporting parts, two clamping parts and two drilling parts are symmetrically arranged on the workbench; the supporting parts comprise hollow mounting columns which are fixed on the supporting table, supporting columns are connected in the mounting columns in a sliding mode, the bottoms of the supporting columns are wedge surfaces, balls are rotatably connected to two sides of the bottoms of the supporting columns, supporting blocks are arranged on the tops of the supporting columns, and springs are arranged between the supporting blocks and the tops of the mounting columns;
the clamping parts comprise L-shaped rods consisting of cross rods and vertical rods, the cross rods penetrate through the side walls of the mounting columns and are connected with the mounting columns in a sliding mode, and one sides of the cross rods, which are located in the cavities of the mounting columns, are wedge surfaces parallel to the bottoms of the supporting columns; the clamping parts are positioned between the two supporting parts, and a spring is arranged between the vertical rods of the two clamping parts;
the drilling parts comprise U-shaped communicating pipes which are fixed on the frame and positioned on one side of the mounting column, which is far away from the L-shaped rod, the U-shaped communicating pipes comprise two transverse pipes and a vertical pipe, sliding plates are sealed in the transverse pipes in a sliding manner, and liquid is injected between the two sliding plates in the U-shaped communicating pipes; a moving rod which penetrates through the mounting column and is in sliding connection with the side wall of the mounting column is fixed on the sliding plate at the lower part, the moving rod is positioned below the cross rod, and one end of the moving rod, which is positioned in the cavity of the mounting column, is a wedge surface opposite to the bottom surface of the support column;
the drill hole part also comprises a fixed block which is positioned above the moving rod and is in sliding connection with the rack, a threaded hole is formed in the fixed block, a rotating shaft is connected in the threaded hole in a threaded manner, a drill bit is fixed at one end of the rotating shaft close to the mounting column, and a motor for driving the rotating shaft is further arranged on the rack; a connecting block is arranged between the fixed block and the mounting column on the frame, a groove is arranged on the connecting block, and a convex block matched with the groove is arranged on the fixed block; the sliding plate on the upper part is provided with a push rod for driving the fixing block to move.
2. The central hole drilling apparatus according to claim 1, wherein: a piston barrel with a sealed top is further arranged above the workbench on the rack, a piston is connected in the piston barrel in a sliding mode, an inverted T-shaped piston rod is fixed at the bottom of the piston, and two ends of the lower portion of the piston rod are provided with pressing blocks; the top of the piston barrel is respectively communicated with the bottoms of the two mounting columns through guide pipes.
3. The central hole drilling apparatus according to claim 2, wherein: and sliding grooves matched with the balls are formed in the wedge surfaces of the cross rod and the moving rod.
4. The central hole drilling apparatus according to claim 3, wherein: and clamping blocks are arranged on the opposite sides of the upper parts of the two vertical rods.
5. The central hole drilling apparatus according to claim 4, wherein: the clamping block is a rubber block, a silica gel block or a latex block.
6. The central hole drilling apparatus according to claim 5, wherein: the top of the supporting block is provided with an arc-shaped groove.
CN201810849880.8A 2018-07-28 2018-07-28 Center hole drilling device Active CN108941675B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810849880.8A CN108941675B (en) 2018-07-28 2018-07-28 Center hole drilling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810849880.8A CN108941675B (en) 2018-07-28 2018-07-28 Center hole drilling device

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Publication Number Publication Date
CN108941675A CN108941675A (en) 2018-12-07
CN108941675B true CN108941675B (en) 2020-01-07

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113305319A (en) * 2021-06-18 2021-08-27 吴海 Drilling machine convenient to drill holes on two sides of workpiece simultaneously
CN117300547B (en) * 2023-11-15 2024-05-28 湖南新达力管业有限公司 Pump pipe production and processing technology and processing equipment thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58202707A (en) * 1982-05-22 1983-11-26 Kyodo Giken:Kk Drilling device of spherical article
CN203330439U (en) * 2013-06-25 2013-12-11 浙江创能机械有限公司 Piston drilling machine
CN205997057U (en) * 2016-08-09 2017-03-08 无锡尊宝电动车有限公司 A kind of fast cutting machine of fixed speed
CN106624024A (en) * 2016-12-25 2017-05-10 重庆市骞焰机械有限责任公司 Drilling equipment for drilling center hole of motor shaft
CN108032114B (en) * 2017-11-29 2020-04-14 宁波江北珂达汽车技术有限公司 Automobile parts processing equipment

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Effective date of registration: 20201106

Address after: 226156 Nantong Binhai New Area, Haimen City, Hong Kong West Road, No. 999, No.

Patentee after: HAIMEN HUANGHAI PIONEER PARK SERVICES Co.,Ltd.

Address before: 400052 Shiyan Industrial Park, Jiulongpo District, Chongqing

Patentee before: CHONGQING TIANDELI INDUSTRIAL Co.,Ltd.