CN112170946B - Broaching machine tool lifting and feeding device - Google Patents
Broaching machine tool lifting and feeding device Download PDFInfo
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- CN112170946B CN112170946B CN202010920635.9A CN202010920635A CN112170946B CN 112170946 B CN112170946 B CN 112170946B CN 202010920635 A CN202010920635 A CN 202010920635A CN 112170946 B CN112170946 B CN 112170946B
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- chain
- sliding plate
- auxiliary sliding
- buffer
- broaching machine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D41/00—Broaching machines or broaching devices characterised only by constructional features of particular parts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The invention discloses a broaching machine tool lifting and conveying device, which comprises an auxiliary sliding plate, a tool lifting device and a tool lifting device, wherein the auxiliary sliding plate is used for mounting a broaching tool; the driving assembly comprises a chain wheel and a chain, the chain is meshed with the chain wheel, the chain is connected with the auxiliary sliding plate, the driving assembly is connected with a servo motor, and the servo motor drives the chain wheel to rotate so as to drive the auxiliary sliding plate to move up and down; the automatic anti-falling component can be matched with the driving component and is used for preventing the auxiliary sliding plate from falling when the auxiliary sliding plate is static. According to the broaching machine tool lifting and feeding device provided by the invention, the servo motor is controlled to drive the chain wheel to drive the auxiliary sliding plate to move up and down according to the preset program, so that automatic lifting and feeding and automatic adjustment of the broaching tool can be realized, the automatic anti-falling assembly can prevent the chain wheel from suddenly rotating, the auxiliary sliding plate from suddenly falling when being static is avoided, the damage rate of a machine is reduced, and the safety is improved.
Description
Technical Field
The invention relates to the technical field of broaching equipment, in particular to a broaching machine tool lifting and conveying device.
Background
At present, the cutter of traditional broaching machine carries a sword device to generally comprise two part structures: knife adjusting device, carry and send sword device. The cutter adjusting device is generally used for adjusting the position of a support of the cutter lifting and conveying device by a motor driving screw rod pair or a rack pair to match broaches with different lengths. The tool lifting and feeding device generally comprises a tool lifting and feeding oil cylinder auxiliary sliding plate, a support and other components, and the tool lifting and feeding oil cylinder drives the auxiliary sliding plate to move up and down to meet the requirements of receiving and feeding the broaching machine tools.
Such a structure is complicated and inconvenient to operate. When an operator replaces the cutter each time, the complicated adjustment and tool setting work is carried out according to different lengths of the broach. The lifting and feeding knife device can only realize the distance of the lifting and feeding knife according to the fixed length of the oil cylinder, a relatively high workpiece can have the risk of insufficient distance, and a short workpiece can influence the processing beat. And the traditional tool lifting and feeding device lacks an anti-falling device, so that the failure rate is high, and the risk avoidance is insufficient.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a broaching machine tool lifting device, which can realize automatic lifting and automatic adjustment of a broaching tool through the driving of a servo motor, and an automatic anti-falling assembly can prevent a chain wheel from suddenly rotating, avoid sudden falling of an auxiliary sliding plate when the auxiliary sliding plate is static, reduce the damage rate of a machine and improve the safety.
According to the embodiment of the first aspect of the invention, the broaching machine tool lifting device comprises an auxiliary sliding plate, a tool lifting device and a tool lifting device, wherein the auxiliary sliding plate is used for mounting a broaching tool; the driving assembly comprises a chain wheel and a chain, the chain is meshed with the chain wheel, the chain is connected with the auxiliary sliding plate, the driving assembly is connected with a servo motor, and the servo motor drives the chain wheel to rotate so as to drive the auxiliary sliding plate to move up and down; the automatic anti-falling component can be matched with the driving component and is used for preventing the auxiliary sliding plate from falling when the auxiliary sliding plate is static.
According to the broaching machine tool-feeding device provided by the embodiment of the invention, at least the following technical effects are achieved: according to the automatic broaching machine, the servo motor is controlled to drive the chain wheel to drive the auxiliary sliding plate to move up and down according to a preset program, automatic lifting and automatic adjustment of broaches can be achieved, broaches with different lengths only need to be set by changing a broaching machine system program, repeated adjustment and tool setting of broaches with different lengths are not needed to be operated, and the automatic broaching machine is simple in structure and convenient to operate. When the work stops, the automatic anti-falling assembly can prevent the chain wheel from suddenly rotating, avoid the auxiliary sliding plate from suddenly falling when in rest, reduce the damage rate of the machine and improve the safety.
According to some embodiments of the invention, the chain wheel is in transmission connection with a ratchet wheel, and the automatic falling prevention assembly can be matched with the ratchet wheel, so that the ratchet wheel can only rotate in one direction, and the auxiliary sliding plate is prevented from falling due to the rotation of the chain wheel when the work stops.
According to some embodiments of the invention, the automatic fall prevention assembly comprises a connecting rod, a fall prevention pin and a support seat, the middle part of the connecting rod is hinged to the support seat, wherein the fall prevention pin is mounted at one end of the connecting rod, the single-acting cylinder is connected to the other end of the connecting rod, the connecting rod can only move towards the direction far away from the ratchet wheel through the single-acting cylinder, and the fall prevention pin is used for being meshed with the ratchet wheel in a single direction.
According to some embodiments of the invention, the drive assembly further comprises a storage box, wherein one end of the chain far away from the auxiliary sliding plate is connected in the storage box, and the extending path of the chain in the storage box is U-shaped.
According to some embodiments of the invention, the receiving box is provided with guide posts uniformly arranged on two outer sides corresponding to the U-shaped extending path of the chain, and the chain is attached to the guide posts and arranged between the guide posts on the two sides, so that the chain is prevented from being misplaced in the transmission process.
According to some embodiments of the invention, a buffer structure is arranged at the middle opening of the upper part of the storage box corresponding to the U-shaped arrangement of the chains, so that the chain is prevented from being broken due to the fact that the tail of the chain is rapidly stretched and straightened along with the rapid descending of the auxiliary sliding plate.
According to some embodiments of the invention, the buffer structure comprises a buffer block and a buffer groove, the buffer groove is formed in the storage box, and the buffer block is slidably arranged in the buffer groove; be equipped with buffer spring between buffer block and the receiver to the slip of buffer block when tightening straight to the chain afterbody cushions.
According to some embodiments of the invention, an anti-collision structure is connected between the chain and the auxiliary sliding plate, and when the broach touches an obstacle downwards, the anti-collision structure can prevent the driving assembly from continuously driving the auxiliary sliding plate to descend.
According to some embodiments of the invention, the anti-collision structure comprises a fixed base, a chain support and a signaler, wherein the fixed base is connected with the mounting assembly, the chain support is connected with the chain, the fixed base is hung below the chain support, the chain support can slide downwards relative to the fixed base, and the signaler is connected with the fixed base or the chain support and used for detecting that the driving assembly stops working when the chain support slides downwards relative to the fixed base.
According to some embodiments of the invention, the anti-collision structure further comprises a bolt, the upper end of the bolt penetrates through the fixing base to be in threaded connection with the chain support, and the bottom of the bolt is provided with a bolt head to bear the fixing base.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of an installation structure of an embodiment of the present invention;
FIG. 2 is a schematic diagram of an exploded view of an embodiment of the present invention;
FIG. 3 is an enlarged view at A in FIG. 2;
FIG. 4 is a cross-sectional view of a crash structure;
FIG. 5 is a schematic structural view of the automatic fall arrest assembly;
FIG. 6 is a schematic view of the automatic fall arrest assembly in an operational configuration;
FIG. 7 is a schematic structural view of a drive assembly;
FIG. 8 is a cross-sectional view of the drive assembly;
FIG. 9 is an enlarged view at B in FIG. 8;
fig. 10 is a partial structural schematic view of the drive assembly.
Reference numerals:
an auxiliary slide 100, a broach 110;
the device comprises a driving component 200, a servo motor 220, a chain wheel 230, a chain 240, a storage box 241, a guide post 242, a ratchet wheel 250, a buffer structure 260, a buffer block 261, a buffer rod 262, a buffer groove 263, a buffer spring 264, a signal rod 265 and a sensor 266;
the anti-collision structure comprises an anti-collision structure 300, a fixed base 310, a guide post 311, a pressure equalizing gasket 312, a pre-tightening nut 313, a second spring 314, a bolt 316, a bolt head 317, a spring groove 318, a chain support 320 and a annunciator 330;
the automatic falling prevention assembly 400, a connecting rod 410, a falling prevention pin 420, a supporting seat 430 and a single-action cylinder 440.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 2, a broaching machine tool lifting device according to an embodiment of the present invention includes a secondary slide plate 100, a driving assembly 200, and an automatic fall preventing assembly 400.
The auxiliary sliding plate 100 is used for installing the broach 110, the auxiliary sliding plate 100 is connected with the cutter clamp 112, the broach 110 is installed on the cutter clamp 112, and the movement of the auxiliary sliding plate 100 can provide a guiding function for the movement of the broach 110, so that the smooth and reliable movement of the broach 110 is ensured.
The driving assembly 200 comprises a chain wheel 230 and a chain 240, the chain 240 is meshed with the chain wheel 230, the chain 240 is connected with the auxiliary sliding plate 100, the driving assembly 200 is connected with a servo motor 220, the servo motor 220 drives the chain wheel 230 to rotate to drive the auxiliary sliding plate 100 to move up and down, namely, automatic lifting and conveying of the broach 110 are achieved, the position of the auxiliary sliding plate 100 can be automatically adjusted by only changing numerical control programs of broaching machines 110 with different lengths, and manual tool setting adjustment is not needed.
The automatic fall preventing assembly 400 can be matched with the driving assembly 200 and used for preventing the auxiliary sliding plate 100 from falling when the auxiliary sliding plate is static, so that the damage rate of a machine is reduced, and the safety is improved.
Referring to FIG. 6, in some embodiments of the present invention, the sprocket 230 is drivingly connected to the ratchet 250, and the fall arrest assembly 400 is capable of engaging the ratchet 250 such that the ratchet 250 rotates in only one direction to prevent the rotation of the sprocket 230 from causing the secondary slide 100 to fall when the work stops.
Referring to fig. 5 to 6, in a further embodiment of the present invention, the automatic fall preventing assembly 400 includes a connecting rod 410, a fall stopping pin 420 and a support 430, the connecting rod 410 is hinged at a middle portion to the support 430, the fall stopping pin 420 is installed at one end, and a single acting cylinder 440 is connected to the other end, the single acting cylinder 440 enables the connecting rod 410 to move only in a direction away from the ratchet 250, and the fall stopping pin 420 is used for being engaged with the ratchet 250 in a single direction.
Specifically, the single-acting cylinder 440 is only provided with a piston rod at the upper end, the piston rod is connected with a piston, the bottom of the piston is connected with a first spring, and one side of the piston rod is provided with a vent. When the sliding plate 100 works, air is ventilated from the air vent to the single-acting cylinder 440, air pressure can be generated to push the piston downwards to enable the connecting rod 410 to rotate clockwise, the falling stopping pin 420 is separated from the ratchet wheel 250, the ratchet wheel 250 can rotate clockwise, the chain wheel 230 rotates clockwise, and the auxiliary sliding plate 100 descends. When the operation is stopped, the air pressure disappears, the first spring pushes the piston to return, the connecting rod 410 rotates counterclockwise, and the falling prevention pin 420 is engaged with the ratchet wheel 250 in a one-way manner, so that the ratchet wheel 250 rotates clockwise to be limited, thereby preventing the auxiliary sliding plate 100 from descending.
Referring to fig. 7, in some embodiments of the present invention, the driving assembly 200 further includes a storage box 241, an end of the chain 240 far from the secondary slide plate 100 is connected in the storage box 241, and an extending path of the chain 240 in the storage box 241 is U-shaped.
In a further embodiment of the present invention, the receiving box 241 has guide posts 242 evenly arranged on two outer sides of the U-shaped extending path of the chain 240, and the chain 240 is attached to the guide posts 242 and placed between the guide posts 242 on two sides to prevent the chain 240 from being dislocated during the transmission process. Preferably, the storage box 241 is disposed below the sprocket 230 to facilitate operation.
Referring to fig. 8, in a further embodiment of the present invention, a buffer structure 260 is disposed at the middle opening of the upper portion of the storage box 241 corresponding to the U-shaped arrangement of the chains 240 to prevent the chains 240 from breaking due to rapid straightening of the tail of the chains 240 as the auxiliary slide 100 rapidly descends.
Referring to fig. 3 and 9, in a further embodiment of the present invention, the buffer structure 260 includes a buffer block 261 and a buffer groove 263, the buffer groove 263 is opened on the receiving box 241, and the buffer block 261 is slidably disposed in the buffer groove 263; a buffer spring 264 is arranged between the buffer block 261 and the storage box 241 to buffer the sliding of the buffer block 261 when the tail of the chain 240 is stretched straight. Specifically, referring to fig. 3, the buffer block 261 is connected with a buffer rod 262, the buffer rod 262 is slidably connected to the receiving box 241, and the buffer spring 264 is sleeved on a portion of the buffer rod 262 between the receiving box 241 and the buffer block 261.
Referring to fig. 10, a signal rod 265 is connected to an end of the buffer rod 262 far from the buffer block 261, a sensor 266 is arranged on one side of the signal rod 265, the buffer block 261 slides upwards along with the upward movement of the tail of the chain 240, the buffer rod 262 and the signal rod 265 slide together, when the signal rod 265 slides to be level with the height of the sensor 266, the sensor 266 sends a signal, a command is sent by a main control system, the servo motor 220 stops rotating, and the sprocket 230 stops rotating.
Preferably, a sponge pad is sleeved outside the guide posts 242 and the buffer block 261 to prevent the chain 240 from being worn.
Referring to fig. 1 to 2, in some embodiments of the present invention, a collision prevention structure 300 is connected between the chain 240 and the auxiliary sliding plate 100, and when the broach 110 touches an obstacle downward, the collision prevention structure 300 can prevent the driving assembly 200 from continuously driving the auxiliary sliding plate 100 to descend, so that the risk of damage to the broach 110 is reduced, the number of times of replacement of the broach 110 is reduced, and the cost of production and processing is reduced.
Referring to fig. 4, in a further embodiment of the present invention, the anti-collision structure 300 includes a fixed base 310, a chain support 320 and a annunciator 330, wherein the fixed base 310 is connected to the auxiliary skateboard 100, the chain support 320 is connected to the chain 240, the fixed base 310 is hung under the chain support 320, the chain support 320 can slide downward relative to the fixed base 310, the annunciator 330 is connected to the fixed base 310, and the annunciator 330 can be an infrared sensor. Specifically, in the state shown in fig. 4, the broaching tool 110 is normally moved, and the chain holder 320 is higher than the sensing end height position of the annunciator 330; when the broach 110 descends and touches an obstacle, the fixed base 310 stops along with the auxiliary sliding plate 100, the chain support 320 continues to slide downwards, when the chain support 320 slides downwards to be level with the height of the annunciator 330, the annunciator 330 immediately sends a signal, and the main control system sends an instruction to stop the rotation of the servo motor 220, so that the auxiliary sliding plate 100 is not driven to move any more, and the broach 110 is prevented from being damaged by collision with the obstacle.
In a further embodiment of the present invention, the crash structure 300 further includes a bolt 316, and the upper end of the bolt 316 penetrates through the fixed base 310 and is threadedly coupled to the chain support 320. The upper part of the bolt 316 is sleeved with a pre-tightening nut 313, and the pre-tightening nut 313 can be screwed to abut against the chain support 320; the bottom of the bolt 316 is provided with a bolt head 317, and the bolt head 317 is used for bearing the fixing base 310.
The fixed base 310 is connected with a guide post 311 by screw thread, the upper end of the guide post 311 passes through the chain support 320, and the chain support 320 can slide along the guide post 311.
Preferably, the fixing base 310 is provided with a spring groove 318 around the bolt 316, a portion of the bolt 316 located in the spring groove 318 is sleeved with the second spring 314, and a lower side of the spring groove 318 is opened for installing the second spring 314. The opening at the lower side of the spring groove 318 is provided with the pressure equalizing gasket 312, the pressure equalizing gasket 312 is attached to the bottom surface of the fixing base 310, and the pressure equalizing gasket 312 is provided with a mounting hole for the bolt 316 to pass through, so that when the fixing base 310 abuts against the bolt head 317, the pressure equalizing gasket 312 abuts against the bolt head 317, and the pressure of the bolt 316 can be dispersed. Since the second spring 314 is always compressed in the spring slot 318, when the fixed base 310 collides with an obstacle and stops, the chain holder 320 continues to descend under the driving of the servo motor 220, and the second spring 314 always applies a downward pulling force to the chain holder 320 through the bolt 316 in the process, so that the chain holder 320 is pulled downward to straighten the chain 240 downward, thereby preventing the chain 240 from being dislocated and keeping the chain 240 in a stable transmission state.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (8)
1. The utility model provides a broaching machine carries sword device which characterized in that includes:
an auxiliary slide plate (100) for mounting a broach (110);
the driving assembly (200) comprises a chain wheel (230) and a chain (240), the chain (240) is meshed with the chain wheel (230), the chain (240) is connected with the auxiliary sliding plate (100), the driving assembly (200) is connected with a servo motor (220), and the servo motor (220) drives the chain wheel (230) to rotate so as to drive the auxiliary sliding plate (100) to move up and down; the driving assembly (200) further comprises a storage box (241), one end, far away from the auxiliary sliding plate (100), of the chain (240) is connected into the storage box (241), and the extending path of the chain (240) in the storage box (241) is U-shaped; a buffer structure (260) is arranged at the upper part of the storage box (241) corresponding to the middle opening of the U-shaped arrangement of the chains (240) to prevent the chains (240) from rapidly descending along with the auxiliary sliding plate (100) to enable the tail parts of the chains (240) to be rapidly stretched and broken;
an automatic fall prevention assembly (400) cooperable with the drive assembly (200) for preventing the auxiliary slide plate (100) from falling when stationary.
2. The broaching machine tool carrier device of claim 1, wherein: the chain wheel (230) is in transmission connection with a ratchet wheel (250), and the automatic falling prevention assembly (400) can be matched with the ratchet wheel (250), so that the ratchet wheel (250) can only rotate in one direction, and the auxiliary sliding plate (100) is prevented from falling due to the rotation of the chain wheel (230) when the work is stopped.
3. The broaching machine tool carrier device of claim 2, wherein: automatic prevent weighing down subassembly (400) including connecting rod (410), end and weigh down round pin (420) and supporting seat (430), connecting rod (410) middle part articulate in supporting seat (430), wherein one end installation end weighs down round pin (420), and the other end is connected with single-action cylinder (440), single-action cylinder (440) make connecting rod (410) can only be towards keeping away from the direction motion of ratchet (250), end weigh down round pin (420) be used for with ratchet (250) one-way engagement.
4. The broaching machine tool carrier device of claim 1, wherein: the chain guide device is characterized in that guide posts (242) are uniformly arranged on the two outer sides of the U-shaped extending path of the chain (240) corresponding to the storage box (241), the chain (240) is attached to the guide posts (242) and arranged between the guide posts (242) on the two sides, and dislocation of the chain (240) in the transmission process is prevented.
5. The broaching machine tool carrier device of claim 1, wherein: the buffer structure (260) comprises a buffer block (261) and a buffer groove (263), the buffer groove (263) is arranged on the storage box (241), and the buffer block (261) is arranged in the buffer groove (263) in a sliding mode; a buffer spring (264) is arranged between the buffer block (261) and the storage box (241) so as to buffer the sliding of the buffer block (261) when the tail of the chain (240) is stretched straight.
6. The broaching machine tool carrier device of claim 1, wherein: an anti-collision structure (300) is connected between the chain (240) and the auxiliary sliding plate (100), and when the broach (110) touches an obstacle downwards, the anti-collision structure (300) can prevent the driving assembly (200) from continuously driving the auxiliary sliding plate (100) to descend.
7. The broaching machine tool carrier device of claim 6, wherein: anticollision structure (300) include unable adjustment base (310), chain support (320) and annunciator (330), unable adjustment base (310) with assist slide (100) and connect, chain support (320) with chain (240) are connected, unable adjustment base (310) articulate chain support (320) below, just chain support (320) can be relative unable adjustment base (310) lapse, annunciator (330) with unable adjustment base (310) or chain support (320) are connected, are used for detecting chain support (320) are relative during unable adjustment base (310) lapse, make drive assembly (200) stop work.
8. The broaching machine tool carrier of claim 7, wherein: the anti-collision structure (300) further comprises a bolt (316), the upper end of the bolt (316) penetrates through the fixed base (310) to be in threaded connection with the chain support (320), and a bolt head (317) is arranged at the bottom of the bolt (316) to bear the fixed base (310).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010920635.9A CN112170946B (en) | 2020-09-04 | 2020-09-04 | Broaching machine tool lifting and feeding device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010920635.9A CN112170946B (en) | 2020-09-04 | 2020-09-04 | Broaching machine tool lifting and feeding device |
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| CN112170946A CN112170946A (en) | 2021-01-05 |
| CN112170946B true CN112170946B (en) | 2021-12-31 |
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| CN202010920635.9A Active CN112170946B (en) | 2020-09-04 | 2020-09-04 | Broaching machine tool lifting and feeding device |
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| CN117105423A (en) * | 2023-09-28 | 2023-11-24 | 上海巷西环境科技有限公司 | Kitchen waste organic waste gas treatment device and application method thereof |
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| CN205615830U (en) * | 2016-05-08 | 2016-10-05 | 西北农林科技大学 | Novel loading mechanism |
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|---|---|---|---|---|
| DE10047662A1 (en) * | 2000-09-26 | 2002-04-18 | Aumat Maschb Gmbh | Vertical broaching machine with tool and work holders centers round vertically guided slide fitted with spindle-and-gripper transfer units coupled in pairs to swivel at offset angle round axis. |
| CN2845984Y (en) * | 2005-11-30 | 2006-12-13 | 林绿高 | Auxiliary device for vertical broaching machine lifting and feeding cutter |
| CN201046515Y (en) * | 2007-04-20 | 2008-04-16 | 林绿高 | Vertical internal broacher tool protecting feeding apparatus |
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| CN112170946A (en) | 2021-01-05 |
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