CN215615569U - Numerical control gear milling machine capable of automatically positioning and clamping workpiece - Google Patents
Numerical control gear milling machine capable of automatically positioning and clamping workpiece Download PDFInfo
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- CN215615569U CN215615569U CN202122370555.3U CN202122370555U CN215615569U CN 215615569 U CN215615569 U CN 215615569U CN 202122370555 U CN202122370555 U CN 202122370555U CN 215615569 U CN215615569 U CN 215615569U
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Abstract
The application relates to the technical field of numerical control gear milling, in particular to a numerical control gear milling machine capable of automatically positioning and clamping workpieces, which comprises a gear milling machine body, wherein a flange plate is arranged at the end part of the gear milling machine body, a pneumatic chuck is arranged on the flange plate and comprises a fixing part and a power part, the fixing part is fixed with the flange plate, a plurality of clamping jaws are annularly distributed on the outer side of the power part, telescopic spray heads are arranged on clamping surfaces of the clamping jaws, a gear is arranged on an outer ring of one side, close to the flange plate, of the power part, and the power part is driven by a speed reduction motor; the cavity is arranged in the gear milling machine body, the electric push rod is installed in the cavity and penetrates through the flange plate, the end portion of the electric push rod is provided with a bearing, the bearing is connected with a clamping device, the clamping device comprises an annular frame body, an air cylinder and a pneumatic telescopic rod, the air cylinder is arranged at the center of the annular frame body, the pneumatic telescopic rod is circumferentially arrayed on the annular frame body, the air cylinder is communicated with the inner side of the pneumatic telescopic rod, and the outer end of the pneumatic telescopic rod is provided with an arc-shaped supporting surface. The safety performance and the gear milling efficiency of the gear milling machine are improved.
Description
Technical Field
The application relates to the technical field of numerical control gear milling, in particular to a numerical control gear milling machine capable of automatically positioning and clamping workpieces.
Background
The numerical control spiral bevel gear milling machine is a finish machining device which adopts a numerical control technology and is used for machining high-precision spiral bevel gears and hypoid gears with the modulus of less than or equal to 15mm and the diameter of less than or equal to 800 mm. The machine tool is universal in design and is suitable for large-scale production of gears of medium and heavy trucks with rough and finish machining, mining machinery, engineering machinery and ships. The machine tool can be used for producing various high-precision spiral bevel gears and hypoid gears with medium diameters in the mechanical manufacturing industry. The present numerical control mills tooth machine and need the manual work to press from both sides the work piece before processing and get, if press from both sides the dress firmly with the work piece because of the user, has the risk that the work piece drops at the course of working, can lead to the user to be injured or the machine is impaired, when needs adjustment work piece axial centre gripping extension length in the course of working, need close the repeated manual work of machine and get the step, it is loaded down with trivial details to press from both sides the process of getting, wastes time and energy, has reduced the machining efficiency of work piece.
Chinese patent CN210413644U discloses a numerical control gear milling machine capable of automatically positioning and clamping workpieces, which comprises a numerical control gear milling machine body, the right end of the numerical control gear milling machine body is movably provided with a flange plate, the right end of the flange plate is movably provided with a pneumatic chuck, the middle part of the numerical control gear milling machine body is provided with a cavity, the left end of the inner cavity of the numerical control gear milling machine body is movably provided with an electric push rod, the right end of the electric push rod is movably connected with a bearing, the right end of the bearing is movably provided with a clamping device, the numerical control gear milling machine capable of automatically positioning and clamping workpieces adopts the structures of an electric push rod, a clamping device, a pneumatic chuck and the like, when the machining position needs to be adjusted, the machine does not need to be repeatedly closed for manual adjustment, the adjustment time is shortened, the machining efficiency of the workpiece is improved, the clamping of work piece can be controlled through controlling the solenoid valve, and the phenomenon that a user is injured or a machine is damaged due to the fact that the work piece is clamped and loosened in the machining process is prevented.
Can drive clamping device through electric putter among the prior art and carry out the centre gripping to the work piece, thereby the radial removal of control work piece, need not artifical the regulation, the work piece of clamping device centre gripping is carried out to the external air chuck of clamping device, thereby the cooperation mills tooth cutter work, carry out the centre gripping through reaching clamping device and carry out the centre gripping rotation through the jack catch on the chuck body, but during the work piece radial movement adjustment, air chuck carries out the in-process that opens and shuts, very easily lead to milling the piece that the tooth in-process produced and enter into air chuck on, influence the centre gripping stability ability between its and the work piece.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problems in the prior art, the application provides a numerical control gear milling machine capable of automatically positioning and clamping workpieces.
The application provides a but automatic positioning presss from both sides tight work piece numerical control gear milling machine adopts following technical scheme:
a numerical control gear milling machine capable of automatically positioning and clamping workpieces comprises a gear milling machine body, wherein a flange plate is mounted at the end part of the gear milling machine body, a pneumatic chuck is mounted on the flange plate and comprises a fixing part and a power part, the fixing part is fixed with the flange plate, a plurality of clamping jaws are annularly distributed on the outer side of the power part, telescopic spray heads are arranged on clamping surfaces of the clamping jaws, a gear is arranged on the outer ring of one side, close to the flange plate, of the power part, and the power part is driven by a speed reduction motor; the cavity is arranged in the gear milling machine body, the electric push rod is installed in the cavity and penetrates through the flange plate, the end portion of the electric push rod is provided with a bearing, the bearing is connected with a clamping device, the clamping device comprises an annular frame body, an air cylinder and a pneumatic telescopic rod, the air cylinder is arranged at the center of the annular frame body, the pneumatic telescopic rod is circumferentially arrayed on the annular frame body, the air cylinder is communicated with the inner side of the pneumatic telescopic rod, and the outer end of the pneumatic telescopic rod is provided with an arc-shaped supporting surface.
Through adopting above-mentioned technical scheme, the ring flange of gear milling machine end installation is used for fixed air chuck, and air chuck includes fixed part and power portion, and wherein the fixed part is used for being connected with the ring flange, and the jack catch that the annular distributes is used for the centre gripping work piece on the outside of power portion to be provided with flexible shower nozzle on the clamping face of jack catch, have the function of automatically cleaning, can wash the piece adhesion of gear milling in-process, guarantee the stability of centre gripping work piece. Gears are annularly distributed on the inner side of the power part, and can be driven by a gear of a speed reduction motor to rotate a clamping workpiece, so that annular uninterrupted gear milling is realized. The electric push rod arranged in the cavity of the gear milling machine body can push the clamping device connected through the bearing, the clamping device can fix the workpiece, and the workpiece is clamped by the power part in a bearing connection mode. Wherein clamping device adopts the loop configuration, and the cylinder drive pneumatic telescopic link in the middle of outwards produces the effect of power, carries out the centre gripping to the medial surface of work piece to cooperation air chuck carries out the centre gripping to the work piece from the outside, makes the work piece utensil of centre gripping more stable.
Preferably, the center of the clamping face of the clamping jaw is provided with a circular groove, the outer ring of the telescopic spray head is attached to the inner wall of the circular groove, and the top face of the telescopic spray head is lower than the clamping face of the clamping jaw.
Through adopting above-mentioned technical scheme, the circular recess at jack catch clamping face center is used for placing the flexible shower nozzle that is used for the automatically cleaning to the top surface of flexible shower nozzle adopts the design of bottom jack catch clamping face, has effectively avoided the extrusion in the centre gripping process to the damage of flexible shower nozzle, has effectively improved the life of flexible shower nozzle.
Preferably, the telescopic nozzle is of an umbrella-mounted structure and comprises a telescopic pipe body at the bottom and a water outlet at the top, wherein a corrugated telescopic hose is arranged in the telescopic pipe body, and the water outlets are annularly distributed around the top.
Through adopting above-mentioned technical scheme, the flexible shower nozzle of umbelliform design, through the flexible pipe control of bottom its lift, the flexible jar of inside ripple expansion hose of internal portion is used for the transport of cleaning solution to go out the water back through the annular top and spray all around, thereby realize the cleanness to the jack catch clamping face.
Preferably, the outer tip of pneumatic telescoping rod is provided with elasticity clamping device, including setting up two "L" type splint at the tip, splint include clamping part and drive division, and wherein the clamping part is the plate body of symmetric distribution in pneumatic telescoping rod both sides, and the drive division is inserted on pneumatic telescoping rod's side, and passes through gear drive between two drive divisions, and the gear suit is in the pivot that has the handle.
Through adopting above-mentioned technical scheme, pneumatic telescopic link's outer terminal surface is used for the medial surface of butt work piece, and the annular clamping device that the tip set up adopts splint to carry out the centre gripping fixed to the both sides of work piece, reduces the possibility of work piece skew to the gear that sets up in pneumatic telescopic link rotates through the pivot that has the handle, and the drive division in the drive splint removes, thereby realizes the adjustment to the splint position.
Preferably, one side of the driving part on the clamping plate is provided with a rack, wherein the rack surfaces of the two clamping plates are opposite, and the gear is meshed with the racks on the two driving parts.
Through adopting above-mentioned technical scheme, adopt the design of rack on the one side of the drive division of centre gripping to the rack on the drive division of two splint is relative, can realize through the rotation of single gear, realizes that the drive division moves to opposite direction, thereby opens splint, makes things convenient for the work piece to place in the splint.
Preferably, the driving part is installed in a side groove of the pneumatic telescopic rod, and the end part of the driving part is connected with the bottom of the groove through a spring.
Through adopting above-mentioned technical scheme, the drive division is installed and is adopted the spring to be connected bottom the recess in pneumatic telescopic handle's side recess, after the splint that rotate to open through the handle can put into the work piece, need not the counter-rotation handle, and the centre gripping to the work piece can be realized through the spring to the unclamping handle.
Preferably, the gear motor is fixed on the side face of the gear milling machine body, the gear motor is meshed with the power part through a gear on the output shaft, and a protective cover is sleeved at the joint of the gear motor and the power part.
Through adopting above-mentioned technical scheme, gear motor can drive power portion and rotate to the realization mills the tooth to the annular of work piece, realizes the high-efficient convenient processing of work piece, and is equipped with the protection casing at junction cover between them.
Preferably, an annular groove is formed in the outer ring of the power portion, and a rubber water retaining strip is arranged at the joint of the protective cover and the annular groove.
Through adopting above-mentioned technical scheme, set up annular groove between power portion inboard and the outside, can be used for dredging and be used for the refrigerated rivers to the protection casing adopts the water bar can effectually prevent that water from entering into the interior survey of power portion and influencing the transmission with the junction of ring channel.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the pneumatic chuck clamps the workpiece and rotates, the electric push rod adjusts the radial position of the workpiece, and the end part of the electric push rod adopts an inner side clamping mode and is matched with the bearing, so that the functions of clamping the inner side and the outer side of the workpiece and stably rotating the workpiece are realized;
2. the annular clamping device arranged at the end part of the pneumatic telescopic rod clamps and fixes two sides of the workpiece by adopting the clamping plate, so that the possibility of workpiece deviation fixed on the clamping device is reduced;
3. the telescopic spray head is arranged at the end part of the clamping jaw in the pneumatic chuck, so that the chips adhered in the opening and closing process of the pneumatic chuck can be effectively cleaned, and the stability of workpiece clamping is greatly improved.
Drawings
FIG. 1 is a schematic view of the overall structure of a numerical control gear milling machine capable of automatically positioning and clamping a workpiece;
FIG. 2 is a schematic cross-sectional view of a numerically controlled gear milling machine capable of automatically positioning and clamping a workpiece;
FIG. 3 is an enlarged view at A in FIG. 1;
FIG. 4 is a schematic structural view of a retractable nozzle in a numerical control gear milling machine capable of automatically positioning and clamping a workpiece;
fig. 5 is a schematic view of the internal connection mechanism of the elastic clamping device of fig. 3.
Description of reference numerals: 1. a gear milling machine body; 11. a cavity; 12. an electric push rod; 13. a bearing; 14. a clamping device; 141. an annular frame body; 142. a cylinder; 143. a pneumatic telescopic rod; 2. a flange plate; 3. a pneumatic chuck; 31. a fixed part; 32. a power section; 321. a claw; 323. an annular groove; 4. a reduction motor; 41. a protective cover; 42. a rubber water bar; 5. a circular groove; 51. a telescopic spray head; 511. a telescopic tube body; 512. a water outlet; 513. a corrugated flexible hose; 6. an elastic clamping device; 61. a splint; 611. a clamping portion; 612. a drive section; 613. a gear; 614. a rotating shaft; 615. a rack; 616. a spring.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses but automatic positioning presss from both sides tight work piece numerical control gear milling machine.
Referring to fig. 1, 2, 3, 4 and 5, the numerical control gear milling machine capable of automatically positioning and clamping workpieces comprises a gear milling machine body 1, wherein a flange 2 is mounted at the end part of the gear milling machine body 1, a pneumatic chuck 3 is mounted on the flange 2, the pneumatic chuck 3 comprises a fixing part 31 and a power part 32, the fixing part 31 is fixed with the flange 2, a plurality of clamping jaws 321 are annularly distributed on the outer side of the power part 32, a telescopic spray head 51 is arranged on a clamping surface of each clamping jaw 321, a gear 613 is arranged on the outer ring of one side, close to the flange 2, of the power part 32, and the power part 32 is driven by a speed reduction motor 4; the cavity 11 is formed in the gear milling machine body 1, the electric push rod 12 is installed in the cavity 11, the electric push rod 12 penetrates through the flange plate 2, the end portion of the flange plate is provided with the bearing 13, the bearing 13 is connected with the clamping device 14, the clamping device 14 comprises an annular frame body 141, a cylinder 142 and a pneumatic telescopic rod 143, the cylinder 142 is arranged at the center of the annular frame body 141, the pneumatic telescopic rod 143 is circumferentially arrayed on the annular frame body 141, the inner side of the pneumatic telescopic rod 143 is communicated with the cylinder 142, and the outer end of the pneumatic telescopic rod 143 is provided with an arc-shaped supporting surface. The flange plate 2 installed at the end part of the gear milling machine is used for fixing the pneumatic chuck 3, the pneumatic chuck 3 comprises a fixing part 31 and a power part 32, the fixing part 31 is used for being connected with the flange plate 2, clamping jaws 321 which are distributed annularly on the outer side of the power part 32 are used for clamping workpieces, and a telescopic spray head 51 is arranged on a clamping surface of each clamping jaw 321, so that the gear milling machine has a self-cleaning function, can flush chips adhered in the gear milling process, and ensures the stability of clamping the workpieces. Gears 613 are annularly distributed on the inner side of the power part 32, and can be driven by the gear 613 of the reduction motor 4 to realize rotation of a clamping workpiece and realize annular uninterrupted gear milling. An electric push rod 12 installed in a cavity 11 of the gear milling machine body 1 can push a clamping device 14 connected through a bearing 13, the clamping device 14 can fix a workpiece, and the workpiece is clamped by the power part 32 in a mode of being connected through the bearing 13. Wherein clamping device 14 adopts the loop configuration, and middle cylinder 142 drive pneumatic telescopic link 143 outwards to produce the effect, carries out the centre gripping to the medial surface of work piece to cooperation air chuck 3 carries out the centre gripping to the work piece from the outside, makes the work piece utensil of centre gripping more stable.
Referring to fig. 1 and 4, a circular groove 5 is formed in the center of the clamping surface of the clamping jaw 321, the outer ring of the retractable nozzle 51 is attached to the inner wall of the circular groove 5, and the top surface of the retractable nozzle 51 is lower than the clamping surface of the clamping jaw 321. The circular groove 5 at the center of the clamping face of the clamping jaw 321 is used for placing the telescopic sprayer 51 for self cleaning, and the top face of the telescopic sprayer 51 adopts the design of the clamping face of the clamping jaw 321 at the bottom, so that the damage of extrusion in the clamping process to the telescopic sprayer 51 is effectively avoided, and the service life of the telescopic sprayer 51 is effectively prolonged.
Referring to fig. 1 and 4, the retractable nozzle 51 is an umbrella structure, and includes a bottom retractable tube 511 and a top water outlet 512, wherein a corrugated retractable hose 513 is disposed in the retractable tube 511, and the water outlets 512 are annularly distributed around the top. The telescopic spray head 51 with umbrella-shaped design controls the lifting of the telescopic spray head through the telescopic pipe at the bottom, the corrugated telescopic hose 513 inside the telescopic tank body is used for conveying cleaning liquid, and the cleaning liquid is sprayed to the periphery after the water is discharged from the annular top, so that the clamping surface of the clamping jaw 321 is cleaned.
Referring to fig. 1, 3 and 5, the outer end of the pneumatic telescopic rod 143 is provided with an elastic clamping device 6, which includes two "L" shaped clamping plates 61 arranged at the ends, each clamping plate 61 includes a clamping portion 611 and a driving portion 612, wherein the clamping portions 611 are plate bodies symmetrically distributed on two sides of the pneumatic telescopic rod 143, the driving portion 612 is inserted on a side surface of the pneumatic telescopic rod 143, the two driving portions 612 are driven by a gear 613, and the gear 613 is sleeved on a rotating shaft 614 with a handle. The outer end face of the pneumatic telescopic rod 143 is used for abutting against the inner side face of a workpiece, the annular clamping device 14 arranged at the end part clamps and fixes the two sides of the workpiece by adopting the clamping plate 61, the possibility of workpiece deviation is reduced, the gear 613 arranged in the pneumatic telescopic rod 143 rotates through the rotating shaft 614 with a handle, the driving part 612 in the clamping plate 61 is driven to move, and therefore the position of the clamping plate 61 is adjusted.
Referring to fig. 1, 3 and 5, the driving portions 612 of the clamping plates 61 are provided with racks 615 on one surface, wherein the racks 615 of the two clamping plates 61 are opposite to each other, and the gears 613 are engaged with the racks 615 of the two driving portions 612. The design of the rack 615 is adopted on one surface of the clamped driving part 612, and the racks 615 on the driving parts 612 of the two clamping plates 61 are opposite, so that the driving parts 612 can move in opposite directions through the rotation of the single gear 613, thereby opening the clamping plates 61 and facilitating the placement of workpieces in the clamping plates 61.
Referring to fig. 1, 3 and 5, the driving part 612 is installed in a side groove of the pneumatic telescopic rod 143, and an end of the driving part 612 is connected to a bottom of the groove by a spring 616. The driving part 612 is arranged in a side groove of the pneumatic telescopic rod 143 and is connected with the bottom of the groove through a spring 616, and after a workpiece can be placed in the clamping plate 61 opened by rotating the handle, the workpiece can be clamped through the spring 616 by loosening the handle without reversely rotating the handle.
Referring to fig. 1 and 2, the gear motor 4 is fixed on the side surface of the gear milling machine body 1, the gear motor 4 is meshed with the power part 32 through a gear on an output shaft, and a protective cover 41 is sleeved at the joint of the gear motor 4 and the power part 32. The gear motor 4 can drive the power part 32 to rotate, so that annular gear milling of the workpiece is realized, efficient and convenient machining of the workpiece is realized, and the protective cover 41 is sleeved at the joint of the workpiece and the gear milling.
Referring to fig. 1 and 2, an annular groove 323 is formed on an outer ring of the power unit 32, and a rubber water bar 42 is disposed at a connection portion between the shield 41 and the annular groove 323. Set up annular groove 323 between the inboard and the outside of power portion 32, can be used for dredging and be used for the refrigerated rivers to the junction of protection casing 41 and annular groove adopts the water bar can effectually prevent that water from entering into the interior survey of power portion 32 and influencing the transmission.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a but automatic positioning presss from both sides tight work piece numerical control gear milling machine, includes gear milling machine body (1), its characterized in that: the gear milling machine is characterized in that a flange plate (2) is mounted at the end part of a gear milling machine body (1), a pneumatic chuck (3) is mounted on the flange plate (2), the pneumatic chuck (3) comprises a fixing part (31) and a power part (32), the fixing part (31) is fixed with the flange plate (2), a plurality of clamping jaws (321) are annularly distributed on the outer side of the power part (32), a telescopic spray head (51) is arranged on a clamping surface of each clamping jaw (321), a gear (613) is arranged on the outer ring of one side, close to the flange plate (2), of the power part (32), and the power part (32) is driven by a speed reduction motor (4); milling teeth machine body (1) and having seted up cavity (11), install electric putter (12) in cavity (11), ring flange (2) are run through in electric putter (12), and bearing (13) are installed to the tip, connect clamping device (14) on bearing (13), and clamping device (14) include annular frame body (141), cylinder (142) and pneumatic telescopic link (143), and wherein cylinder (142) set up the center at annular frame body (141), and pneumatic telescopic link (143) circumference permutation is on annular frame body (141), pneumatic telescopic link (143) inboard intercommunication cylinder (142), the outer end adopts the arc holding surface.
2. The numerical control gear milling machine capable of automatically positioning and clamping workpieces as claimed in claim 1, wherein: the centre gripping face center of jack catch (321) is equipped with circular recess (5), and the inner wall laminating of the outer lane of flexible shower nozzle (51) and circular recess (5), and the top surface of flexible shower nozzle (51) is less than the clamping face of jack catch (321).
3. The numerical control gear milling machine capable of automatically positioning and clamping workpieces as claimed in claim 2, characterized in that: the telescopic sprayer (51) is of an umbrella-shaped structure and comprises a telescopic pipe body (511) at the bottom and a water outlet (512) at the top, wherein a corrugated telescopic hose (513) is arranged in the telescopic pipe body (511), and the water outlet (512) is annularly distributed around the top.
4. The numerical control gear milling machine capable of automatically positioning and clamping workpieces as claimed in claim 1, wherein: the outer end of the pneumatic telescopic rod (143) is provided with an elastic clamping device (6) which comprises two L-shaped clamping plates (61) arranged at the ends, each clamping plate (61) comprises a clamping part (611) and a driving part (612), the clamping parts (611) are plate bodies symmetrically distributed on two sides of the pneumatic telescopic rod (143), the driving parts (612) are inserted on the side faces of the pneumatic telescopic rod (143), the two driving parts (612) are driven by a gear (613), and the gear (613) is sleeved on a rotating shaft (614) with a handle.
5. The numerical control gear milling machine capable of automatically positioning and clamping workpieces as claimed in claim 4, wherein: racks (615) are arranged on one surface of the driving parts (612) on the clamping plates (61), wherein the racks (615) of the two clamping plates (61) are opposite, and the gears (613) are meshed with the racks (615) on the two driving parts (612).
6. The numerical control gear milling machine capable of automatically positioning and clamping workpieces as claimed in claim 4, wherein: the driving part (612) is installed in a side groove of the pneumatic telescopic rod (143), and the end part of the driving part (612) is connected with the bottom of the groove through a spring (616).
7. The numerical control gear milling machine capable of automatically positioning and clamping workpieces as claimed in claim 1, wherein: the gear milling machine is characterized in that the speed reducing motor (4) is fixed on the side face of the gear milling machine body (1), the speed reducing motor (4) is meshed with the power part (32) through a gear (613) on an output shaft, and a protective cover (41) is sleeved at the connecting position of the speed reducing motor (4) and the power part (32).
8. The numerical control gear milling machine capable of automatically positioning and clamping workpieces as claimed in claim 7, wherein: an annular groove (323) is formed in the outer ring of the power portion (32), and a rubber water retaining strip (42) is arranged at the joint of the protective cover (41) and the annular groove (323).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122370555.3U CN215615569U (en) | 2021-09-28 | 2021-09-28 | Numerical control gear milling machine capable of automatically positioning and clamping workpiece |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122370555.3U CN215615569U (en) | 2021-09-28 | 2021-09-28 | Numerical control gear milling machine capable of automatically positioning and clamping workpiece |
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| CN215615569U true CN215615569U (en) | 2022-01-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115674375A (en) * | 2022-11-15 | 2023-02-03 | 江西兴海床具有限公司 | Multi-shaft machining equipment for mortise and tenon structure |
| CN117644644A (en) * | 2024-01-30 | 2024-03-05 | 合肥东昇智能装备股份有限公司 | Double-zipper clamp |
-
2021
- 2021-09-28 CN CN202122370555.3U patent/CN215615569U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115674375A (en) * | 2022-11-15 | 2023-02-03 | 江西兴海床具有限公司 | Multi-shaft machining equipment for mortise and tenon structure |
| CN115674375B (en) * | 2022-11-15 | 2023-11-21 | 江西兴海床具有限公司 | Multi-shaft machining equipment for mortise and tenon structures |
| CN117644644A (en) * | 2024-01-30 | 2024-03-05 | 合肥东昇智能装备股份有限公司 | Double-zipper clamp |
| CN117644644B (en) * | 2024-01-30 | 2024-04-05 | 合肥东昇智能装备股份有限公司 | Double-zipper clamp |
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