CN218341574U - Clamping device and CNC (computer numerical control) machine tool - Google Patents

Clamping device and CNC (computer numerical control) machine tool Download PDF

Info

Publication number
CN218341574U
CN218341574U CN202222075585.6U CN202222075585U CN218341574U CN 218341574 U CN218341574 U CN 218341574U CN 202222075585 U CN202222075585 U CN 202222075585U CN 218341574 U CN218341574 U CN 218341574U
Authority
CN
China
Prior art keywords
positioning
clamping device
mounting
driver
cover plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202222075585.6U
Other languages
Chinese (zh)
Inventor
汪文龙
张孟孟
蔡杰成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongguan Shengtao Technology Co ltd
Original Assignee
Dongguan Shengtao Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dongguan Shengtao Technology Co ltd filed Critical Dongguan Shengtao Technology Co ltd
Priority to CN202222075585.6U priority Critical patent/CN218341574U/en
Application granted granted Critical
Publication of CN218341574U publication Critical patent/CN218341574U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Landscapes

  • Jigs For Machine Tools (AREA)

Abstract

The utility model discloses a clamping device and a CNC machine tool with the same, wherein the clamping device comprises a mounting frame and a pressing structure; two groups of positioning structures are arranged on the mounting frame, each group of positioning structures comprises a plurality of positioning blocks which are distributed at intervals along a preset direction, a positioning area is formed between every two adjacent positioning blocks, the positioning blocks of the two groups of positioning structures correspond to each other one by one, and a mounting area is formed between every two corresponding positioning blocks; on compact structure located the mounting bracket, compact structure included driver and two apron, and the installing zone was located to the driver, the driver respectively with two cover connection, the driver can drive two apron and be close to two sets of location structure's location district respectively. Be equipped with two sets of location structure on the mounting bracket, and two sets of location structure's locating piece one-to-one, and then two sets of location structure's locating area also one-to-one for on-vehicle battery case can place simultaneously and fix a position in two locating areas that correspond and press from both sides tightly, has improved clamping device to on-vehicle battery's centre gripping precision.

Description

Clamping device and CNC (computer numerical control) machine tool
Technical Field
The utility model relates to a machining technology field, in particular to clamping device and CNC lathe.
Background
When the vehicle-mounted battery shell is machined, the clamping device is required to clamp the vehicle-mounted battery shell, after the existing clamping device clamps the long-strip-shaped vehicle-mounted battery shell, the clamping device cannot firmly clamp the vehicle-mounted battery shell, and the vehicle-mounted battery shell vibrates greatly during machining, so that the machining precision of the vehicle-mounted battery shell is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an solve one of the technical problem that exists among the prior art at least, the utility model discloses the first aspect provides a clamping device, can be at the banding vehicle-mounted battery shell of firm centre gripping.
The utility model discloses the second aspect still provides a CNC lathe including above-mentioned clamping device.
According to the utility model discloses a clamping device that the embodiment of first aspect provided, including mounting bracket and compact structure; two groups of positioning structures are arranged on the mounting rack, each group of positioning structures comprises a plurality of positioning blocks which are distributed at intervals along a preset direction, a positioning area is formed between every two adjacent positioning blocks, the positioning blocks of the two groups of positioning structures correspond to each other one by one, and a mounting area is formed between every two corresponding positioning blocks; on compact structure located the mounting bracket, compact structure included driver and two apron, and the installing zone was located to the driver, the driver respectively with two cover connection, the driver can drive two apron and be close to two sets of location structure's location district respectively.
Clamping device have following beneficial effect at least: the vehicle-mounted battery shell can be simultaneously placed in the two corresponding positioning areas to be positioned and clamped, so that the vehicle-mounted battery shell is prevented from vibrating, and the clamping precision of the clamping device on the vehicle-mounted battery can be improved; meanwhile, the driver is installed in the installation area between the two corresponding positioning blocks, so that redundant space between the two corresponding positioning blocks can be utilized, the space utilization rate of the clamping device is improved, and the size of the clamping device is reduced.
According to the utility model discloses the first aspect embodiment clamping device, be equipped with on the mounting bracket respectively with two sets of mounting grooves that two sets of location structure is corresponding, every group mounting groove all includes along a plurality of mounting grooves that preset direction interval set up, locating piece one-to-one locate in the mounting groove.
According to the utility model discloses clamping device, in every group location structure, the butt piece is installed to two surfaces that two adjacent locating pieces are close to each other detachably respectively, and the apron is close to one side in locating area and is equipped with the flexible piece.
According to the utility model discloses clamping device, in every group location structure, one side that at least one locating piece is close to the apron is equipped with the guide bar, has seted up the guiding hole on the apron, wears to locate in the guiding hole guide bar slidable.
According to the utility model discloses first aspect embodiment clamping device, the driver include cylinder and driving medium, the output and the driving medium of cylinder are connected, one side looks butt in locating area is kept away from with the apron to the driving medium.
According to the utility model discloses clamping device, the driver still include the support frame, the support frame is connected with the shell of cylinder, the driving medium includes drive division, supporting part and butt portion, the supporting part is located between drive division and the butt portion, the drive division rotates with the output of cylinder to be connected, the supporting part rotates with the support frame to be connected, butt portion and apron keep away from one side looks butt in the location district.
According to the utility model discloses clamping device, one side detachably that the locating area was kept away from to the apron install the handle.
According to the utility model discloses the CNC lathe that second aspect embodiment provided, include the utility model discloses the clamping device and the board that the embodiment of first aspect provided are equipped with the roating seat on the board, rotate on the roating seat and are connected with the rotating member, and mounting bracket detachably connects on the rotating member.
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 present invention will be further described with reference to the accompanying drawings and examples;
fig. 1 is a schematic structural view of a clamping device according to an embodiment of the present invention;
FIG. 2 is a schematic view of a cover plate of the clamping device shown in FIG. 1;
FIG. 3 is an enlarged view of the clamping device shown in FIG. 1 at A;
fig. 4 is a schematic structural diagram of a CNC machine according to an embodiment of the present invention.
Reference numerals are as follows:
a holding device 100;
a mounting frame 200; a positioning region 210; a first connection hole 220; a positioning block 230; an abutment 240; a guide rod 250;
a compacting structure 300; a cover plate 310; a flexible member 311; a guide hole 312; a handle 313; a fifth threaded connection 314; a cylinder 320; a transmission member 330; a driving section 331; a support portion 332; an abutment 333; a support frame 340;
a machine table 400; a rotary base 410; a rotating member 420.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of meanings are one or more, a plurality of meanings are two or more, and the terms greater than, smaller than, exceeding, etc. are understood as excluding the number, and the terms greater than, lower than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
The clamping device 100 and the CNC machine according to the present invention will be described in detail with reference to fig. 1 to 4.
Referring to fig. 1 to 3, a clamping device 100 according to an embodiment of the present invention includes a mounting frame 200 and a pressing structure 300.
Two groups of positioning structures are arranged on the mounting frame 200, each group of positioning structures comprises a plurality of positioning blocks 230 distributed at intervals along a preset direction, a positioning area 210 is formed between every two adjacent positioning blocks 230, the positioning blocks 230 of the two groups of positioning structures are in one-to-one correspondence, and a mounting area is formed between every two corresponding positioning blocks 230; the pressing structure 300 is arranged on the mounting frame 200, the pressing structure 300 comprises a driver and two cover plates 310, the driver is arranged in the mounting area and is respectively connected with the two cover plates 310, and the driver can drive the two cover plates 310 to be respectively close to the positioning areas 210 of the two sets of positioning structures.
For example, as shown in fig. 1 to 3, first connection holes 220 are formed at both left and right ends of the mounting bracket 200, second connection holes may be formed in the rotary members 420 at both left and right sides of the corresponding CNC machine tool, and the first threaded connectors are respectively threaded into the first connection holes 220 and the second connection holes to realize the detachable connection between the mounting bracket 200 and the CNC machine tool; when the mounting rack 200 is in a vertical state, two groups of positioning structures are distributed up and down, each group of positioning structures comprises a plurality of positioning blocks 230 arranged at intervals in the left-right direction, in each group of positioning structures, a positioning area 210 is formed between every two adjacent positioning blocks 230, the positioning blocks 230 of the two groups of positioning structures are in one-to-one correspondence up and down, the positioning areas 210 in the two groups of positioning structures are in one-to-one correspondence up and down, and a mounting area is formed between every two corresponding positioning blocks 230; the pressing structure 300 comprises a driver and two cover plates 310, wherein the cover plates 310 are located on the front side of the positioning area 210, the driver is arranged in the mounting area and is fixedly connected to the mounting frame, the output end of the driver is connected with the front end face of the cover plate 310, and the cover plate 310 can move backwards to be close to the positioning area 210 under the driving of the driver. When the clamping device 100 works, the vehicle-mounted battery shell is placed in the two corresponding positioning areas 210, the driver respectively drives the two cover plates 310 to be close to the positioning areas 210, and then the cover plates 310 can abut against and press the vehicle-mounted battery shell, so that the positioning and clamping of the vehicle-mounted battery shell are realized. Because the vehicle-mounted battery shells are placed in the two corresponding positioning areas 210, one vehicle-mounted battery shell can be clamped by the two cover plates 310, and the clamping precision of the long-strip vehicle-mounted battery shell is improved; meanwhile, since the driver is installed in the installation region, a space between the two corresponding positioning blocks 230 can be utilized, thereby improving a space utilization rate of the clamping device and reducing a volume of the clamping device.
Specifically, the mounting bracket 200 is provided with two sets of mounting grooves corresponding to the two sets of positioning structures, each set of mounting grooves includes a plurality of mounting grooves arranged at intervals along a preset direction, and the positioning blocks 230 are correspondingly arranged in the mounting grooves one to one. For example, when the mounting bracket 200 is in a vertical state, two sets of mounting grooves are vertically distributed on the mounting bracket 200, each set of mounting grooves includes a plurality of mounting grooves arranged at intervals in the left-right direction, a third connecting hole is formed at the bottom of each mounting groove, a fourth connecting hole is formed at the rear end of the positioning block 230, and the second threaded connectors are respectively in threaded connection with the third connecting hole and the fourth connecting hole, so that the positioning block 230 is detachably mounted in the mounting grooves. By arranging the mounting groove, the mounting groove can play a role in positioning the mounting of the positioning block 230, so that the positioning block 230 can be accurately mounted on the mounting frame 200; meanwhile, the positioning block 230 is detachably disposed in the mounting groove, so that the positioning block 230 is conveniently mounted or dismounted.
In some embodiments of the present invention, in each positioning structure, two surfaces of two adjacent positioning blocks 230 close to each other are detachably mounted with an abutting part 240, and one side of the cover plate 310 close to the positioning area 210 is provided with a flexible part 311. For example, as shown in fig. 3, two surfaces of the two positioning blocks 230 adjacent to each other on the left and right are respectively provided with a fifth connecting hole, the abutting piece 240 is provided with a sixth connecting hole, and the third threaded connecting piece is respectively in threaded connection with the fifth connecting hole and the sixth connecting hole, so as to realize the detachable connection between the abutting piece 240 and the first positioning block 230; the cover plate 310 has a flexible member 311 on a rear end surface thereof. By arranging the abutting piece 240 on the surface of the first positioning block 230, the abutting piece 240 can protect the vehicle-mounted battery shell, and the first positioning block 230 is prevented from damaging the vehicle-mounted battery shell; meanwhile, the abutting pieces 240 are detachably connected with the first positioning block 230, so that a worker can select the corresponding abutting pieces 240 according to vehicle-mounted battery shells with different specifications to control the size of the space in the positioning area 210, and the abutting pieces 240 can abut against the outer wall of the vehicle-mounted battery shell to limit the vehicle-mounted battery shell; the flexible piece 311 is arranged on the rear end face of the cover plate 310, and when the cover plate 310 presses the vehicle-mounted battery shell in the positioning area 210, the flexible piece 311 can protect the vehicle-mounted battery shell, so that the cover plate 310 is prevented from damaging the vehicle-mounted battery shell.
In particular, the abutment 240 may comprise a high-force glue.
Specifically, the flexible member 311 may include a super glue.
In some embodiments of the present invention, in each positioning structure, a guiding rod 250 is disposed on one side of at least one positioning block 230 close to the cover plate 310, a guiding hole 312 is disposed on the cover plate 310, and the guiding rod 250 slidably passes through the guiding hole 312. For example, as shown in fig. 2 and 3, in each set of positioning structures, the front ends of two positioning blocks 230 located at the leftmost end and the rightmost end are respectively provided with a guide rod 250, correspondingly, the left end and the right end of the cover plate 310 are respectively provided with a guide hole 312, the guide rods 250 slidably penetrate through the guide holes 312, and then the cover plate 310 can move back and forth along the guide rods 250. The cover plate 310 can be accurately brought close to the positioning region 210 by the cooperation between the guide rods 250 and the guide holes 312.
In some embodiments of the present invention, the actuator includes a cylinder 320 and a transmission member 330, an output end of the cylinder 320 is connected to the transmission member 330, and the transmission member 330 abuts against one side of the cover plate 310 away from the positioning area 210. For example, as shown in fig. 1 and 3, the cylinder 320 is mounted on the mounting frame 200, the cylinder 320 and the cover plate 310 are both located at the rear side of the transmission member 330, one end of the transmission member 330 abuts against the front end surface of the cover plate 310, the other end of the transmission member 330 is connected to the output end of the cylinder 320, and the transmission member 330 can push the cover plate 310 backwards under the driving of the cylinder 320, so that the flexible member 311 is close to the positioning area 210. Through setting up driving medium 330 for cylinder 320 and first locating block 230 all can be located the rear side of driving medium 330, thereby reduced clamping device 100 in the size of front and back direction, and then reduced clamping device 100's volume.
Further, the driver further includes a supporting frame 340, the supporting frame 340 is connected to the housing of the cylinder 320, the transmission member 330 includes a driving portion 331, a supporting portion 332 and an abutting portion 333, the supporting portion 332 is located between the driving portion 331 and the abutting portion 333, the driving portion 331 is rotatably connected to the output end of the cylinder 320, the supporting portion 332 is rotatably connected to the supporting frame 340, and the abutting portion 333 is abutted to one side of the cover plate 310 away from the positioning region 210. For example, as shown in fig. 3, the supporting frame 340 is detachably mounted at the front end of the housing of the cylinder 320 through a fourth threaded connector, the transmission member 330 is provided with a driving portion 331, a supporting portion 332 and an abutting portion 333, the supporting portion 332 is located between the driving portion 331 and the abutting portion 333, the supporting portion 332 is rotatably connected to the supporting frame 340, the output end of the cylinder 320 is rotatably connected to the driving portion 331, and the abutting portion 333 is abutted to the front end surface of the cover plate 310. Further, the driving portion 331 can move forward by the driving of the cylinder 320, and further, the abutting portion 333 can move backward by the supporting portion 332 to push the cover plate 310 to move backward. Through setting up support frame 340, can improve the stability of driving medium 330.
In some embodiments of the present invention, a handle 313 is detachably mounted on a side of the cover plate 310 away from the positioning region 210. For example, as shown in fig. 1 and 2, two handles 313 may be disposed side by side on the left and right of the front end surface of the cover plate 310, and the handles 313 may be detachably connected to the cover plate 310 by a fifth screw 314. By arranging the handle 313, after the vehicle-mounted battery shell is processed, a worker can drive the cover plate 310 to be far away from the positioning area 210 through the handle 313, so that the worker can take the processed vehicle-mounted battery shell from the positioning area 210; meanwhile, the handle 313 is detachably connected with the cover plate 310 by a fifth screw 314, which facilitates the worker to install or remove the handle 313.
According to the utility model discloses CNC lathe of second aspect embodiment, include the utility model discloses clamping device 100 and board 400 of first aspect embodiment are provided with roating seat 410 on the board 400, rotate on the roating seat 410 and are connected with rotating member 420, and mounting bracket detachably connects on rotating member 420. For example, as shown in fig. 1 and 4, the first connection holes 220 are formed at the left and right ends of the mounting frame 200, the CNC machine includes a machine table 400 and two rotary bases 410, the two rotary bases 410 are respectively installed at the left and right sides of the machine table 400, the rotary pieces 420 are rotatably installed on the two rotary bases 410, the second connection holes can be formed on the rotary pieces 420, the first threaded connection pieces are respectively in threaded connection with the first connection holes 220 and the second connection holes, so as to realize detachable connection between the mounting frame 200 and the rotary pieces 420, under the driving of the driving device, the rotary pieces 420 can rotate, the mounting frame 200 is driven to rotate, so as to adjust the machining angle of the vehicle-mounted battery shell on the mounting frame 200, and thereby, the CNC machine tool can machine the vehicle-mounted battery shell.
While embodiments of the present 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. A clamping device (100) comprising:
the mounting rack (200) is provided with two groups of positioning structures, each group of positioning structures comprises a plurality of positioning blocks (230) distributed at intervals along a preset direction, a positioning area (210) is formed between every two adjacent positioning blocks (230), the positioning blocks (230) of the two groups of positioning structures are in one-to-one correspondence, and a mounting area is formed between every two corresponding positioning blocks (230);
the pressing structure (300) is arranged on the mounting frame (200), the pressing structure (300) comprises a driver and two cover plates (310), the driver is arranged in the mounting area, the driver is respectively connected with the two cover plates (310), and the driver can drive the two cover plates (310) to be respectively close to the two sets of positioning areas (210) of the positioning structure.
2. The clamping device (100) according to claim 1, wherein two sets of mounting grooves are formed on the mounting bracket (200) and respectively correspond to the two sets of positioning structures, each set of mounting grooves includes a plurality of mounting grooves spaced along a predetermined direction, and the positioning blocks (230) are correspondingly disposed in the mounting grooves.
3. The clamping device (100) according to claim 1, wherein in each set of the positioning structures, two surfaces of two adjacent positioning blocks (230) are detachably mounted with abutting members (240), respectively, and one side of the cover plate (310) close to the positioning region (210) is provided with a flexible member (311).
4. The clamping device (100) according to claim 1, wherein in each of the positioning structures, a guide rod (250) is disposed on a side of at least one of the positioning blocks (230) close to the cover plate (310), the cover plate (310) is provided with a guide hole (312), and the guide rod (250) is slidably disposed through the guide hole (312).
5. Clamping device (100) according to claim 1, wherein the drive comprises a cylinder (320) and a transmission element (330), wherein the output of the cylinder (320) is connected to the transmission element (330), and wherein the transmission element (330) abuts against a side of the cover plate (310) facing away from the positioning region (210).
6. A clamping device (100) according to claim 5, wherein the actuator further comprises a support frame (340), the support frame (340) is connected to the housing of the cylinder (320), the transmission member (330) comprises a driving portion (331), a supporting portion (332) and an abutting portion (333), the supporting portion (332) is located between the driving portion (331) and the abutting portion (333), the driving portion (331) is rotatably connected to the output end of the cylinder (320), the supporting portion (332) is rotatably connected to the support frame (340), and the abutting portion (333) abuts against the side of the cover plate (310) away from the positioning region (210).
7. A holding device (100) according to claim 1, wherein a handle (313) is detachably mounted on the side of the cover plate (310) remote from the positioning region (210).
8. A CNC machine comprising the clamping device (100) and the machine table (400) according to any one of claims 1 to 7, wherein the machine table (400) is provided with a rotating base (410), the rotating base (410) is rotatably connected with a rotating member (420), and the mounting frame (200) is detachably connected with the rotating member (420).
CN202222075585.6U 2022-08-08 2022-08-08 Clamping device and CNC (computer numerical control) machine tool Active CN218341574U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222075585.6U CN218341574U (en) 2022-08-08 2022-08-08 Clamping device and CNC (computer numerical control) machine tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222075585.6U CN218341574U (en) 2022-08-08 2022-08-08 Clamping device and CNC (computer numerical control) machine tool

Publications (1)

Publication Number Publication Date
CN218341574U true CN218341574U (en) 2023-01-20

Family

ID=84913860

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222075585.6U Active CN218341574U (en) 2022-08-08 2022-08-08 Clamping device and CNC (computer numerical control) machine tool

Country Status (1)

Country Link
CN (1) CN218341574U (en)

Similar Documents

Publication Publication Date Title
CN213729679U (en) Two-chuck movable pipe cutting machine
CN218341574U (en) Clamping device and CNC (computer numerical control) machine tool
CN213410520U (en) Cutter for cutting welding strip of series welding machine
CN209970188U (en) Combined tool lathe
CN201324861Y (en) Improved slotting straightener for claw of front fork
CN218370393U (en) Material taking device
CN219703666U (en) Automatic slot pulling device
CN215880830U (en) Clamp
CN219325299U (en) Quick change device for pressing knife
CN101767219A (en) Improved front-fork claw groove-millec corrector
CN214079448U (en) Multifunctional foam cutting engraving and milling machine
CN220944206U (en) Positioning fixture for milling machine
CN218192695U (en) Rotating shaft cylinder hole expanding machine
CN209831315U (en) Grinding head structure for machining numerical control gantry machine tool
CN219598758U (en) Clamp tool convenient for cutter machining
CN221065273U (en) Fixing clamp for numerical control drilling machine
CN216000126U (en) Clamp for machining tool apron
CN211708828U (en) Machining center
CN214213048U (en) Rotary tool rest device of machine tool
CN217292892U (en) Milling machine is used in processing of clean type graphite jig
CN218836926U (en) Special-shaped component side spot facing work frock
CN219379843U (en) Rotatable microphone upper shell lathe mounting fixture
CN219541723U (en) Grooving tool
CN211277506U (en) Four-axis machining device for small cover shell of gearbox
CN217252934U (en) Cutter support of automatic horizontal milling and boring machine

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant