CN104308665A - Milling machine double-profiling system with stopping part for trapezoidal sliding block - Google Patents
Milling machine double-profiling system with stopping part for trapezoidal sliding block Download PDFInfo
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- CN104308665A CN104308665A CN201410440804.3A CN201410440804A CN104308665A CN 104308665 A CN104308665 A CN 104308665A CN 201410440804 A CN201410440804 A CN 201410440804A CN 104308665 A CN104308665 A CN 104308665A
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- pattern
- block
- actuating arm
- slide block
- trapezoidal slide
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- 238000003801 milling Methods 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C1/00—Milling machines not designed for particular work or special operations
- B23C1/16—Milling machines not designed for particular work or special operations specially designed for control by copying devices
-
- 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
- B23Q35/00—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually
- B23Q35/04—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor
- B23Q35/42—Patterns; Masters models
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Machine Tool Units (AREA)
Abstract
The invention relates to a milling machine double-profiling system with a stopping part for a trapezoidal sliding block. The double-profiling system comprises a box body (1), a first profiling block (2) and a second profiling block (3), wherein an upper slot (13) and a lower slot are respectively formed in the upper side wall and the lower side wall of the box body (1); the first profiling block (2) and the second profiling block (3) are symmetrically arranged in the box body (1); a first profiling edge (23) and a second profiling edge (33) are respectively arranged on the first profiling block (2) and the second profiling block (3); the first profiling edge (23) is used for driving the transverse feed amount of a first milling head (803), and thus a curved surface groove is formed in a first workpiece part (801); the second profiling edge (33) is used for driving the transverse feed amount of a second milling head (804); the first milling head (803) and the second milling head (804) are connected through a rack and can conduct longitudinal motion along the first profiling edge and the second profiling edge together.
Description
Technical field
The invention belongs to the field of machining equipment, more specifically relate to the pattern process equipment of milling machine.
Background technology
The Milling Process of milling machine is the conventional process tools of field of machining, and its technology becomes better and approaching perfection day by day, for the technological transformation more difficult of this kind of equipment.Profiler is a kind of contouring machine, and it can process the contour shape of needs easily, at low cost on part.
And for the profile of some present peculiar parts, its requirement has irregular shape profile, and, on Same Part or on the part separated, need to process two shape profiles with accurate relative location.This processing often realizes by means of Digit Control Machine Tool at present.But, the equipment cost processing that digital control processing needs, and higher for the technical requirement of operation.This is unfavorable for the cost efficiency requirement of processing.
Summary of the invention
For above-mentioned technical problem, the invention provides a kind of two pattern processing modes for milling machine, it can process the structure with accurate counter-profile shape in different part parts, and processing cost is low.
According to aspects of the present invention, a kind of two copying system of milling machine had for the retainer of trapezoidal slide block, described pair of copying system comprises casing, first pattern block and the second pattern block, the line of rabbet joint and the lower line of rabbet joint is respectively arranged with in the top and bottom sidewall of casing, first pattern block and the second pattern block are arranged in described casing symmetrically, first pattern block and the second pattern block have the first pattern limit and the second pattern limit respectively, first pattern limit is for driving the lateral feed of the first milling head, thus curved surface groove is processed on the first workpiece portion, second pattern limit is for driving the lateral feed of the second milling head, described first milling head and the second milling head are connected by frame and jointly can do lengthwise movement along described first and second pattern limits, thus the second milling head can process curved surface groove in second workpiece part, and the first pattern block and the second pattern block can slide to make respective pattern limit to stretch out and retract respectively by the line of rabbet joint on described and the lower line of rabbet joint respectively in described casing, also be connected with between described first pattern block and the second pattern block extended state multiple in draw assembly, described multiple in draw assembly described first pattern block and the second pattern block to be close to each other inwardly tractive,
Described two milling heads are arranged on the both sides of described pair of copying system, be connected into fixing in the vertical relative to described frame and in the horizontal can the mode of relative sliding respectively with described frame, the passage passed through for described pair of copying system is provided with in the middle of described frame, each described milling head is all contacted with corresponding pattern limit by feeler lever, thus, described frame can drive described two milling heads along the lengthwise movement of described pair of copying system, and under the curvilinear surface effect on described pattern limit, described two milling heads can respectively relative to described frame transverse movement, thus process curve form,
First pattern block and the second pattern block structure are mutually symmetrical;
Described first pattern block is provided with the first left tilted surface and the first right tilted surface symmetrically, and the left side of the first left tilted surface is the first left junction surface, and right side is the first left retainer, and the right side of the first right tilted surface is the first right junction surface, and left side is the first right retainer,
Described first pattern block is also provided with the first left shoulder and the first right shoulder symmetrically, first left shoulder and the first right shoulder can lean against when described first pattern block slides inside the upper side wall of described casing, thus carry out spacing to the slip of described first pattern block;
Described second pattern block is provided with the second left tilted surface and the second right tilted surface symmetrically, and the left side of the second left tilted surface is the second left junction surface, and right side is the second left retainer, and the right side of the second right tilted surface is the second right junction surface, and left side is the second right retainer,
Described second pattern block is also provided with the second left shoulder and the second right shoulder symmetrically, second left shoulder and the second right shoulder can lean against when described second pattern block slides inside the lower wall of described casing, thus carry out spacing to the slip of described second pattern block;
Between described first left tilted surface and the second left tilted surface, be provided with left trapezoidal slide block, left trapezoidal slide block is isosceles trapezoid, and two waist side is slidably matched with the first left tilted surface and the second left tilted surface respectively; Between described first right tilted surface and the second right tilted surface, be provided with right trapezoidal slide block, right trapezoidal slide block is isosceles trapezoid, and two waist side is slidably matched with the first right tilted surface and the second right tilted surface respectively;
The bottom sides of trapezoidal both the slide blocks of the trapezoidal slide block in a described left side and the right side toward each other, driving mechanism is provided with between described bottom sides, described driving mechanism comprises driving shaft, described driving shaft connects with drive motors power, drive motors and described casing are fixedly connected, described driving shaft about its axis centre symmetrically [symmetrically] be provided with two actuating arms: the first actuating arm and the second actuating arm, the end of the first actuating arm is provided with the first roller, and described first actuating arm is also fixedly installed the first support stop part, the end of the second actuating arm is provided with the second roller, and described second actuating arm is also fixedly installed the second support stop part,
When described pair of copying system is at the first state [being shown in figure]: the first actuating arm and the second actuating arm [generally] are in relatively arranging up and down, described multiple in draw in assembly and draw effect under, the bottom sides of the trapezoidal slide block in a described left side leans against on the first left retainer and the second left retainer, and the bottom sides of right trapezoidal slide block leans against on the first right retainer and the second right retainer; Now, the first left junction surface engages with the second left junction surface, and the first right junction surface engages with the second right junction surface; And inside the upper side wall that the pattern limit of the first pattern block and the second pattern block is all retracted into described casing by the corresponding line of rabbet joint and lower wall;
When described drive motors drives described drive shaft turns, the bottom sides that respective the first roller of described first actuating arm and the second actuating arm and the second roller lean against the trapezoidal slide block of the trapezoidal slide block in a described left side and the described right side respectively promotes the trapezoidal slide block of left trapezoidal slide block and the described right side and outwards slides along inclined-plane respectively, when described first roller is vertical with the bottom sides of the trapezoidal slide block in the described right side with the trapezoidal slide block in a described left side with the line of the second roller thus when making the trapezoidal slide block of the trapezoidal slide block in a described left side and described right side pattern limit overhang separately be maximum, described first actuating arm and the second actuating arm are rotated further minute angle, make described multiple in draw in assembly and draw effect under, described first of described first actuating arm and the second actuating arm support stop part and second support stop part support respectively lean against the trapezoidal slide block of the trapezoidal slide block in a described left side and the described right side bottom sides on, stop the further rotation blocking the first actuating arm and the second actuating arm thus, now, first actuating arm and the second actuating arm [generally] are relatively arranged in left and right, and outside the upper side wall that the pattern limit of the first pattern block and the second pattern block all stably stretches out in described casing by the corresponding line of rabbet joint and lower wall, now described pair of copying system is in the second state.
Pass through technique scheme; owing to have employed two milling head; two milling heads are structurally fixedly connected; therefore ensure that the relative positional accuracy when processing two contour shapes; and have employed two copying system; the difformity requirement of two contour shapes can be met; the trapezoidal sliding shoe separated by two drives two pattern always; pattern can be made reliably to stretch out and retract; after pattern is retracted; the form accuracy of pattern profile can be protected when equipment does not run, be unlikely to the making contact receiving lathe miscellaneous part.And, by described trapezoidal slide block, can with pattern part plane-plane contact, increase contact surface, avoid force-bearing situation in use worsen and make equipment premature breakdown; And can be separated with whole equipment due to trapezoidal slide block, therefore, it is possible to by using the setting of high rigidity, high glossy, make it increase the service life, and damage is convenient to change in its use for a long time, and the maintainability of Whole Equipment is improved greatly after arriving service life.
Accompanying drawing explanation
Fig. 1 is the structural diagrams of pattern when stretching out;
Fig. 2 is the structural diagrams after pattern is retracted;
Fig. 3 is the top view of casing of the present invention.
Fig. 4 is the operation schematic diagram that pattern drives the milling head of milling machine.
Detailed description of the invention
Below in conjunction with Fig. 1-4, the present invention is described in detail.It may be noted that this specific descriptions are not considered as any limitation of the invention.
A kind of two copying system of milling machine had for the retainer of trapezoidal slide block, described pair of copying system comprises casing 1, first pattern block 2 and the second pattern block 3, the line of rabbet joint 13 and the lower line of rabbet joint is respectively arranged with in the top and bottom sidewall of casing 1, first pattern block 2 and the second pattern block 3 are arranged in described casing 1 symmetrically, first pattern block 2 and the second pattern block 3 have the first pattern limit 23 and the second pattern limit 33 respectively, first pattern limit 23 is for driving the lateral feed of the first milling head 803, thus curved surface groove is processed on the first workpiece portion 801, second pattern limit 33 is for driving the lateral feed of the second milling head 804, described first milling head 803 and the second milling head 804 are connected by frame and jointly can do lengthwise movement along described first and second pattern limits, thus the second milling head 804 can process curved surface groove in second workpiece part 802, and the first pattern block 2 and the second pattern block 3 can slide respectively to make respective pattern limit 23 in described casing 1, 33 can stretch out and retract respectively by the described upper line of rabbet joint 13 and the lower line of rabbet joint, also be connected with between described first pattern block 2 and the second pattern block 3 extended state multiple in draw assembly, described multiple in draw assembly described first pattern block 2 and the second pattern block 3 to be close to each other inwardly tractive,
Described two milling heads 803, 804 both sides being arranged on described pair of copying system, be connected into fixing in the vertical relative to described frame and in the horizontal can the mode of relative sliding respectively with described frame, the passage 806 passed through for described pair of copying system is provided with in the middle of described frame 805, each described milling head is all contacted with corresponding pattern limit by feeler lever, thus, described frame can drive described two milling heads along the lengthwise movement of described pair of copying system, and under the curvilinear surface effect on described pattern limit, described two milling heads can respectively relative to the transverse movement of described frame 805, thus process curve form,
First pattern block 2 and the second pattern block 3 structure are mutually symmetrical;
Described first pattern block 2 is provided with the first left tilted surface 24 and the first right tilted surface 25 symmetrically, the left side of the first left tilted surface 24 is the first left junction surface 26, and right side is the right side of the first left retainer 21, first right tilted surface 25 is the first right junction surface 27, left side is the first right retainer 22
Described first pattern block 2 is also provided with the first left shoulder 28 and the first right shoulder 29 symmetrically, first left shoulder 28 and the first right shoulder 29 can lean against when described first pattern block 2 slides inside the upper side wall of described casing 1, thus carry out spacing to the slip of described first pattern block 2;
Described second pattern block 3 is provided with the second left tilted surface 34 and the second right tilted surface 35 symmetrically, the left side of the second left tilted surface 34 is the second left junction surface 36, and right side is the right side of the second left retainer 31, second right tilted surface 35 is the second right junction surface 37, left side is the second right retainer 32
Described second pattern block 3 is also provided with the second left shoulder 38 and the second right shoulder 39 symmetrically, second left shoulder 38 and the second right shoulder 39 can lean against when described second pattern block 3 slides inside the lower wall of described casing 1, thus carry out spacing to the slip of described second pattern block 3;
Between described first left tilted surface 24 and the second left tilted surface 34, be provided with left trapezoidal slide block 6, left trapezoidal slide block 6 is isosceles trapezoid, and two waist side is slidably matched with the first left tilted surface 24 and the second left tilted surface 34 respectively; Between described first right tilted surface 25 and the second right tilted surface 35, be provided with right trapezoidal slide block 5, right trapezoidal slide block 5 is isosceles trapezoid, and two waist side is slidably matched with the first right tilted surface 25 and the second right tilted surface 35 respectively;
The bottom sides of trapezoidal both the slide blocks 5 of the trapezoidal slide block in a described left side 6 and the right side toward each other, driving mechanism 4 is provided with between described bottom sides, described driving mechanism comprises driving shaft 41, described driving shaft 41 connects with drive motors power, drive motors and described casing 1 are fixedly connected, described driving shaft 41 about its axis centre symmetrically [symmetrically] be provided with two actuating arms: the first actuating arm and the second actuating arm, the end of the first actuating arm is provided with the first roller 46, and described first actuating arm is also fixedly installed the first support stop part 42, the end of the second actuating arm is provided with the second roller 47, and described second actuating arm is also fixedly installed the second support stop part 43,
When described pair of copying system is at the first state [being shown in Fig. 2]: the first actuating arm and the second actuating arm [generally] are in relatively arranging up and down, described multiple in draw in assembly and draw effect under, the bottom sides of the trapezoidal slide block in a described left side 6 leans against on the first left retainer 21 and the second left retainer 31, and the bottom sides of right trapezoidal slide block 5 leans against on the first right retainer 22 and the second right retainer 32; Now, the first left junction surface 26 engages with the second left junction surface 36, and the first right junction surface 27 engages with the second right junction surface 37; And inside the upper side wall that the pattern limit of the first pattern block 2 and the second pattern block 3 is all retracted into described casing 1 by the corresponding line of rabbet joint and lower wall;
When described drive motors drives described driving shaft 41 to rotate, the bottom sides that respective the first roller 46 of described first actuating arm and the second actuating arm and the second roller 47 lean against the trapezoidal slide block of the trapezoidal slide block in a described left side 6 and the described right side 5 respectively promotes the trapezoidal slide block 5 of left trapezoidal slide block 6 and the described right side and outwards slides along inclined-plane respectively, when described first roller 46 is vertical with the bottom sides of the trapezoidal slide block in the described right side 5 with the trapezoidal slide block in a described left side 6 with the line of the second roller 47 thus pattern limit overhang that is that make the trapezoidal slide block of the trapezoidal slide block in a described left side 6 and the described right side 5 respective is maximum, described first actuating arm and the second actuating arm are rotated further minute angle, make described multiple in draw in assembly and draw effect under, described first of described first actuating arm and the second actuating arm support stop part 42 and second support stop part 43 support respectively lean against the trapezoidal slide block 5 of the trapezoidal slide block in a described left side 6 and the described right side bottom sides on, stop the further rotation blocking the first actuating arm and the second actuating arm thus, now, first actuating arm and the second actuating arm [generally] are relatively arranged in left and right, and outside the upper side wall that the pattern limit of the first pattern block 2 and the second pattern block 3 all stably stretches out in described casing 1 by the corresponding line of rabbet joint and lower wall, now described pair of copying system is in the second state.
Claims (1)
1. one kind has the two copying system of milling machine for the retainer of trapezoidal slide block, described pair of copying system comprises casing (1), first pattern block (2) and the second pattern block (3), the line of rabbet joint (13) and the lower line of rabbet joint is respectively arranged with in the top and bottom sidewall of casing (1), first pattern block (2) and the second pattern block (3) are arranged in described casing (1) symmetrically, first pattern block (2) and the second pattern block (3) have the first pattern limit (23) and the second pattern limit (33) respectively, first pattern limit (23) is for driving the lateral feed of the first milling head (803), thus curved surface groove is processed on the first workpiece portion (801), second pattern limit (33) is for driving the lateral feed of the second milling head (804), described first milling head (803) and the second milling head (804) are connected by frame and jointly can do lengthwise movement along described first and second pattern limits, thus the second milling head (804) can process curved surface groove in second workpiece part (802), and the first pattern block (2) and the second pattern block (3) can slide respectively to make respective pattern limit (23 in described casing (1), 33) can stretch out and retract respectively by the described upper line of rabbet joint (13) and the lower line of rabbet joint, also be connected with between described first pattern block (2) and the second pattern block (3) extended state multiple in draw assembly, described multiple in draw assembly described first pattern block (2) and the second pattern block (3) to be close to each other inwardly tractive,
Described two milling heads (803, 804) both sides of described pair of copying system are arranged on, be connected into fixing in the vertical relative to described frame and in the horizontal can the mode of relative sliding respectively with described frame, the passage (806) passed through for described pair of copying system is provided with in the middle of described frame (805), each described milling head is all contacted with corresponding pattern limit by feeler lever, thus, described frame can drive described two milling heads along the lengthwise movement of described pair of copying system, and under the curvilinear surface effect on described pattern limit, described two milling heads can respectively relative to described frame (805) transverse movement, thus process curve form,
First pattern block (2) and the second pattern block (3) structure are mutually symmetrical;
Described first pattern block (2) is provided with the first left tilted surface (24) and the first right tilted surface (25) symmetrically, the left side of the first left tilted surface (24) is the first left junction surface (26), right side is the first left retainer (21), the right side of the first right tilted surface (25) is the first right junction surface (27), left side is the first right retainer (22)
Described first pattern block (2) is also provided with the first left shoulder (28) and the first right shoulder (29) symmetrically, first left shoulder (28) and the first right shoulder (29) can lean against when described first pattern block (2) slides inside the upper side wall of described casing (1), thus carry out spacing to the slip of described first pattern block (2);
Described second pattern block (3) is provided with the second left tilted surface (34) and the second right tilted surface (35) symmetrically, the left side of the second left tilted surface (34) is the second left junction surface (36), right side is the second left retainer (31), the right side of the second right tilted surface (35) is the second right junction surface (37), left side is the second right retainer (32)
Described second pattern block (3) is also provided with the second left shoulder (38) and the second right shoulder (39) symmetrically, second left shoulder (38) and the second right shoulder (39) can lean against when described second pattern block (3) slides inside the lower wall of described casing (1), thus carry out spacing to the slip of described second pattern block (3);
Between described first left tilted surface (24) and the second left tilted surface (34), be provided with left trapezoidal slide block (6), left trapezoidal slide block (6) is isosceles trapezoid, and two waist side is slidably matched with the first left tilted surface (24) and the second left tilted surface (34) respectively; Between described first right tilted surface (25) and the second right tilted surface (35), be provided with right trapezoidal slide block (5), right trapezoidal slide block (5) is isosceles trapezoid, and two waist side is slidably matched with the first right tilted surface (25) and the second right tilted surface (35) respectively;
The trapezoidal slide block in a described left side (6) and the right side trapezoidal slide block (5) the two bottom sides toward each other, driving mechanism (4) is provided with between described bottom sides, described driving mechanism comprises driving shaft (41), described driving shaft (41) connects with drive motors power, drive motors and described casing (1) are fixedly connected, described driving shaft (41) about its axis centre symmetrically [symmetrically] be provided with two actuating arms: the first actuating arm and the second actuating arm, the end of the first actuating arm is provided with the first roller (46), and described first actuating arm is also fixedly installed the first support stop part (42), the end of the second actuating arm is provided with the second roller (47), and described second actuating arm is also fixedly installed the second support stop part (43),
When described pair of copying system is at the first state [being shown in Fig. 2]: the first actuating arm and the second actuating arm [generally] are in relatively arranging up and down, described multiple in draw in assembly and draw effect under, the bottom sides on the trapezoidal slide block in a described left side (6) leans against on the first left retainer (21) and the second left retainer (31), and the bottom sides of right trapezoidal slide block (5) leans against on the first right retainer (22) and the second right retainer (32); Now, the first left junction surface (26) engages with the second left junction surface (36), and the first right junction surface (27) engages with the second right junction surface (37); And inside the upper side wall that the pattern limit of the first pattern block (2) and the second pattern block (3) is all retracted into described casing (1) by the corresponding line of rabbet joint and lower wall;
When described drive motors drives described driving shaft (41) to rotate, the bottom sides that respective the first roller (46) of described first actuating arm and the second actuating arm and the second roller (47) lean against the trapezoidal slide block in a described left side (6) and the described right side trapezoidal slide block (5) respectively promotes left trapezoidal slide block (6) and the described right side trapezoidal slide block (5) and outwards slides along inclined-plane respectively, when described first roller (46) is vertical with the bottom sides on the trapezoidal slide block in the described right side (5) with the trapezoidal slide block in a described left side (6) with the line of the second roller (47) thus pattern limit overhang that is that make the trapezoidal slide block in a described left side (6) and the described right side trapezoidal slide block (5) respective is maximum, described first actuating arm and the second actuating arm are rotated further minute angle, make described multiple in draw in assembly and draw effect under, described first of described first actuating arm and the second actuating arm support stop part (42) and the second support stop part (43) support respectively lean against the trapezoidal slide block in a described left side (6) and the described right side trapezoidal slide block (5) bottom sides on, stop the further rotation blocking the first actuating arm and the second actuating arm thus, now, first actuating arm and the second actuating arm [generally] are relatively arranged in left and right, and outside the upper side wall that the pattern limit of the first pattern block (2) and the second pattern block (3) all stably stretches out in described casing (1) by the corresponding line of rabbet joint and lower wall, now described pair of copying system is in the second state [seeing Fig. 1].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410440804.3A CN104308665B (en) | 2014-09-02 | 2014-09-02 | A kind of two copying system of milling machine had for the retainer of trapezoidal slide block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410440804.3A CN104308665B (en) | 2014-09-02 | 2014-09-02 | A kind of two copying system of milling machine had for the retainer of trapezoidal slide block |
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| Publication Number | Publication Date |
|---|---|
| CN104308665A true CN104308665A (en) | 2015-01-28 |
| CN104308665B CN104308665B (en) | 2016-01-20 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2118514A (en) * | 1936-07-29 | 1938-05-24 | Carl H Johnson | Duplicating routing machine |
| US3150561A (en) * | 1963-09-24 | 1964-09-29 | Antonio B Celli | Copying machine |
| CN1680073A (en) * | 2004-03-10 | 2005-10-12 | 发那科株式会社 | Machining apparatus |
-
2014
- 2014-09-02 CN CN201410440804.3A patent/CN104308665B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2118514A (en) * | 1936-07-29 | 1938-05-24 | Carl H Johnson | Duplicating routing machine |
| US3150561A (en) * | 1963-09-24 | 1964-09-29 | Antonio B Celli | Copying machine |
| CN1680073A (en) * | 2004-03-10 | 2005-10-12 | 发那科株式会社 | Machining apparatus |
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| CN104308665B (en) | 2016-01-20 |
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