CN109622851A - A kind of open type two point high-performance press slide block structure - Google Patents
A kind of open type two point high-performance press slide block structure Download PDFInfo
- Publication number
- CN109622851A CN109622851A CN201910083924.5A CN201910083924A CN109622851A CN 109622851 A CN109622851 A CN 109622851A CN 201910083924 A CN201910083924 A CN 201910083924A CN 109622851 A CN109622851 A CN 109622851A
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- plate
- slide block
- open type
- point high
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J9/00—Forging presses
- B21J9/10—Drives for forging presses
- B21J9/18—Drives for forging presses operated by making use of gearing mechanisms, e.g. levers, spindles, crankshafts, eccentrics, toggle-levers, rack bars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/04—Frames; Guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/26—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/04—Frames; Guides
- B30B15/041—Guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/06—Platens or press rams
- B30B15/068—Drive connections, e.g. pivotal
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Presses And Accessory Devices Thereof (AREA)
Abstract
The invention discloses a kind of open type two point high-performance press slide block structures, connecting rod cap and slide body, slide body is made of bottom plate, front panel, rear panel, side plate, guide rail, middle partition, diaphragm plate and support plate, it is fixedly connected between front panel and rear panel by side plate, the bottom of side plate is connected with bracket, and bracket installs pusher by pin shaft；Two connecting rod caps are fixed on connecting rod by equal screw, top bearing shell and lower bearing are equipped in the circular hole that connecting rod cap and connecting rod are formed, connecting rod is embedded with nut, nut is connected through a screw thread adjusting screw rod, the bottom of nut is fixedly connected with female connector by screw, the bottom of adjusting screw rod is extend between spherical gland and ball bowl, and the bottom of adjusting screw rod is by selling connecting joint directly to households.The present invention is oriented to by the way that the inside groove of guide rail is arranged to rectangular configuration, and precision is high, meanwhile, it is driven by two by crankshaft by being provided with two connecting rods, improves the flexibility ratio of sliding block on the whole, flexibility ratio is improved, and reduces noise when its movement.
Description
Technical field
The present invention relates to press technologies field, in particular to a kind of open type two point high-performance press slide block structure.
Background technique
Press machine (including punching machine, hydraulic press) is a kind of versatility press machine of delicate structure.With widely used, production
The features such as high-efficient, press machine can be widely applied to the techniques such as cutting, punching, blanking, bending, riveted and forming.By to gold
Category blank, which applies powerful pressure, makes metal that plastic deformation occur and be broken to be processed into part.Mechanical press work Shi You electricity
Motivation drives big belt pulley (usually doubling as flywheel) by V belt, drives crank block by gear pair and clutch, makes
Sliding block and punch-pin straight line downlink.Mechanical press completes rear slider journey uplink in forging and stamping work, and clutch disengages automatically, while bent
Automation on arbor is connected, and sliding block is made to stop near top dead center.The sliding block of existing press machine can only be driven by single crank
It is dynamic, and the linkage arrangement of its sliding block is unreasonable, and the flexibility ratio of turning joint is inadequate, noise when sliding block being caused to slide up and down
Greatly, guide rail structure design is unreasonable, causes guide effect poor, affects precision.
Summary of the invention
Invention is designed to provide a kind of open type two point high-performance press slide block structure, and the present invention is by by guide rail
Inside groove is arranged to rectangular configuration, using the guide rail of the structure, is oriented to, and precision is high, meanwhile, by being provided with two connecting rods by two
It is a to be driven by crankshaft, its length is adjusted by adjusting screw rod, connecting rod improves sliding block by the spherical structure of bottom on the whole
Flexibility ratio, flexibility ratio are improved, and reduce noise when its movement.To solve the problems mentioned in the above background technology.
To achieve the above object, the invention provides the following technical scheme:
A kind of open type two point high-performance press slide block structure, connecting rod cap and slide body, the slide body is by bottom plate, front
Plate, rear panel, side plate, guide rail, middle partition, diaphragm plate and support plate composition, pass through side plate between the front panel and rear panel
It being fixedly connected, the bottom of front panel and rear panel is fixedly connected with bottom plate, and the outside of the side plate is fixedly connected with guide rail, and two
It is also fixedly connected by diaphragm plate between the side plate, the bottom center of diaphragm plate is provided with middle partition, and the front panel is with after
Support plate is also fixedly connected between panel, the bottom of the side plate is connected with bracket, and bracket installs pusher by pin shaft.
Two connecting rod caps are fixed on connecting rod by equal screw, are equipped with upper axis in the circular hole that connecting rod cap and connecting rod are formed
Watt and lower bearing, the connecting rod be embedded with nut, the outer surface of connecting rod and nut is equipped with vernier A, and nut is connected through a screw thread tune
Save screw rod, the bottom of the nut is fixedly connected with female connector by screw, the bottom of the adjusting screw rod extend into spherical gland with
Between ball bowl, piston is installed between the ball bowl and cylinder body, O-ring retaining ring is equipped between piston and ball bowl, the cylinder body is logical
It crosses screw to be mounted in outer cover, the outer cover and spherical gland pass through screw and adjusting pad connecting cover plate, the top of the cover board
Portion is equipped with dustproof cover, and the bottom of the adjusting screw rod is additionally provided with capping, the cylinder body on the ball bowl by selling connecting joint directly to households
Side be equipped with transition segment, be additionally provided with centering spindle between the outer cover and support plate.
Further, vernier seat is installed, the outside of vernier seat is equipped with oil ga(u)ge B and oily window on the side plate.
Further, oil storage box is additionally provided with below the bottom plate.
Further, the bottom of the bottom plate offers through hole.
Further, the gap that the top bearing shell and lower bearing surround is passed through for crankshaft.
Further, the bottom of the adjusting screw rod is arranged to spherical structure.
Further, the inside groove of the guide rail is arranged to rectangular configuration.
Compared with prior art, the beneficial effects of the present invention are:
1. open type two point high-performance press slide block structure proposed by the present invention, bottom plate, rear panel, side plate, are led at front panel
Rail, middle partition, diaphragm plate and support plate are together to form the outer framework structure an of sliding block, and rectangular knot is arranged in the inside groove of guide rail
Structure is oriented to using the guide rail of the structure, and precision is high.
2. open type two point high-performance press slide block structure proposed by the present invention, by being provided with two connecting rods, connecting rod by
Crankshaft driving adjusts its length by adjusting screw rod, connecting rod by the spherical structure of bottom, the spherical structure in spherical gland and
Ball bowl-type at gap in carry out activity in conjunction with the joint of side improve the flexibility ratio of sliding block on the whole, flexibility ratio obtains
It improves, reduces noise when its movement.
Detailed description of the invention
Fig. 1 is slide block structure overall structure diagram of the invention；
Fig. 2 is the side view of Fig. 1 of the present invention；
Fig. 3 is the top view of Fig. 1 of the invention.
In figure: 4001, connecting rod cap；4002, top bearing shell；4003, lower bearing；4004, nut；4005, connecting rod；4006, it adjusts
Save screw rod；4007, slide body；40071, bottom plate；40072, front panel；40073, rear panel；40074, side plate；40075, it leads
Rail；40076, middle partition；40077, diaphragm plate；40078, support plate；4009, female connector；4010, joint；4011, it sells directly to households；4012,
Oil storage box；4013, cover board；4014, it covers；4015, ball bowl；4016, piston；4017, O-ring retaining ring；4018, transition segment；
4019, cylinder body；4020, centering spindle；4025, vernier A；4026, dustproof cover；4027, adjusting pad；4028, vernier seat；4029, oily
Mark B；4030, oily window；4031, bracket；4032, pin shaft；4033, pusher；4034, outer cover；4054, spherical gland.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-3, a kind of open type two point high-performance press slide block structure, connecting rod cap 4001 and slide body 4007 are please referred to,
Slide body 4007 is by bottom plate 40071, front panel 40072, rear panel 40073, side plate 40074, guide rail 40075, middle partition
40076, diaphragm plate 40077 and support plate 40078 form, and pass through side plate 40074 between front panel 40072 and rear panel 40073
It being fixedly connected, vernier seat 4028 is installed on side plate 40074, the outside of vernier seat 4028 is equipped with oil ga(u)ge B4029 and oily window 4030,
It can be convenient and oil level is observed by oily window 4030, the bottom of front panel 40072 and rear panel 40073 is fixedly connected with bottom plate
40071, the lower section of bottom plate 40071 is additionally provided with oil storage box 4012, and the bottom of bottom plate 40071 offers through hole, can guarantee to slide
Block facilitates carry out punching press when moving down, and the outside of side plate 40074 is fixedly connected with guide rail 40075, the inside groove of guide rail 40075
It is arranged to rectangular configuration, using the guide rail 40075 of the structure, is oriented to, precision is high, also passes through cross between two side plates 40074
Partition 40077 is fixedly connected, and the bottom center of diaphragm plate 40077 is provided with middle partition 40076, front panel 40072 and rear panel
Support plate 40078 is also fixedly connected between 40073, support plate 40078 is supported joint motion position, bottom plate 40071,
Front panel 40072, rear panel 40073, side plate 40074, guide rail 40075, middle partition 40076, diaphragm plate 40077 and support plate
40078 are together to form the outer framework structure an of sliding block, further enhance stability, and the bottom of side plate 40074 is connected with
Bracket 4031, bracket 4031 are installed pusher 4033 by pin shaft 4032 and are pushed forward when carrying out punching press by pusher 4033
Plate advances, and sliding block carries out punching press by the up and down drive dnockout screw of guide rail 40075.
Two connecting rod caps 4001 are fixed on connecting rod 4005 by equal screw, connecting rod cap 4001 to the top of connecting rod 4005 into
Row seals, and combines to form gap and driven convenient for crankshaft by the two, in the circular hole that connecting rod cap 4001 and connecting rod 4005 are formed
Equipped with top bearing shell 4002 and lower bearing 4003, the gap that top bearing shell 4002 and lower bearing 4003 surround is passed through for crankshaft, crankshaft
When being driven, top bearing shell 4002 and lower bearing 4003 can improve wearability, connecting rod when the bearing of crankshaft rotates
4005 are embedded with nut 4004, and the outer surface of connecting rod 4005 and nut 4004 is equipped with vernier A4025, and nut 4004 passes through screw thread company
Adjusting screw rod 4006 is connect, the bottom of nut 4004 is fixedly connected with female connector 4009 by screw, by rotating adjusting screw rod 4006, adjusts
It is up and down in nut 4004 to save screw rod 4006, the adjusting of its height may be implemented, the bottom of adjusting screw rod 4006 is extend into
Between spherical gland 4054 and ball bowl 4015, the bottom of adjusting screw rod 4006 is arranged to spherical structure, spherical gland 4054 and ball
The gap that bowl 4015 is formed, which can match, accommodates the spherical structure, and crankshaft improves flexibility ratio, ball bowl 4015 and cylinder in driving
Piston 4016 is installed between body 4019, O-ring retaining ring 4017, O-ring retaining ring are equipped between piston 4016 and ball bowl 4015
4017 can be improved wearability, and cylinder body 4019 is mounted in outer cover 4034 by screw, and outer cover 4034 and spherical gland 4054 are
By 4027 connecting cover plate 4013 of screw and adjusting pad, adjusting pad 4027 can play the role of sealing to a certain extent, lid
The top of plate 4013 is equipped with dustproof cover 4026, and dustproof cover 4026 prevents dust from entering, and the bottom of adjusting screw rod 4006 passes through direct selling
4011 connecting joints 4010, for crankshaft in driving, joint 4010 can be improved the flexibility ratio of entire sliding block, also set on ball bowl 4015
There is capping 4014, the side of cylinder body 4019 is equipped with transition segment 4018, is additionally provided with centering spindle between outer cover 4034 and support plate 40078
4020, facilitate outer cover 4034 and its within component and support plate 40078 can be relatively movable, when crankshaft is in drive link 4005
When movable, spherical structure of the connecting rod 4005 by bottom, the sky which forms in spherical gland 4054 and ball bowl 4015
Carry out activity in gap improves the flexibility ratio of sliding block in conjunction with the joint 4010 of side on the whole, and flexibility ratio is improved, drop
Noise when its low movement.
The present invention is compared with prior art: the sliding block of existing press machine can only be driven by single crank, and its sliding block
Linkage arrangement it is unreasonable, the flexibility ratio of turning joint is inadequate, and noise is big when sliding block being caused to slide up and down.And the present invention is logical
It crosses and is provided with two connecting rods 4005, connecting rod 4005 is driven by crankshaft, adjusts its length by adjusting screw rod 4006, connecting rod 4005 is logical
The spherical structure of bottom is crossed, spherical structure carry out activity in the gap that spherical gland 4054 and ball bowl 4015 are formed, then tie
The joint 4010 for closing side, improves the flexibility ratio of sliding block, flexibility ratio is improved, making an uproar when reducing its movement on the whole
Sound.
In conclusion open type two point high-performance press slide block structure proposed by the present invention, bottom plate 40071, front panel
40072, rear panel 40073, side plate 40074, guide rail 40075, middle partition 40076, diaphragm plate 40077 and support plate 40078 are total
With the outer framework structure for being combined into a sliding block, the inside groove of guide rail 40075 is arranged to rectangular configuration, using the guide rail of the structure
40075, it is oriented to, precision is high.By being provided with two connecting rods 4005, connecting rod 4005 is driven by crankshaft, passes through adjusting screw rod
4006 adjust its length, and connecting rod 4005 is by the spherical structure of bottom, and the spherical structure is in spherical gland 4054 and ball bowl 4015
Carry out activity in the gap of formation improves the flexibility ratio of sliding block in conjunction with the joint 4010 of side on the whole, and flexibility ratio obtains
It improves, reduces noise when its movement.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art within the technical scope of the present disclosure, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (7)
1. a kind of open type two point high-performance press slide block structure, which is characterized in that connecting rod cap (4001) and slide body (4007),
The slide body (4007) is by bottom plate (40071), front panel (40072), rear panel (40073), side plate (40074), guide rail
(40075), middle partition (40076), diaphragm plate (40077) and support plate (40078) composition, the front panel (40072) and after
It is fixedly connected between panel (40073) by side plate (40074), the bottom of front panel (40072) and rear panel (40073) is fixed
It is connected with bottom plate (40071), the outside of the side plate (40074) is fixedly connected with guide rail (40075), two side plates
(40074) it is also fixedly connected by diaphragm plate (40077) between, the bottom center of diaphragm plate (40077) is provided with middle partition
(40076), support plate (40078), the side are also fixedly connected between the front panel (40072) and rear panel (40073)
The bottom of plate (40074) is connected with bracket (4031), and bracket (4031) passes through pin shaft (4032) installation pusher (4033)；
Two connecting rod caps (4001) are fixed on connecting rod (4005) by equal screw, connecting rod cap (4001) and connecting rod (4005)
Top bearing shell (4002) and lower bearing (4003) are equipped in the circular hole of formation, the connecting rod (4005) is embedded with nut (4004), even
The outer surface of bar (4005) and nut (4004) is equipped with vernier A (4025), and nut (4004) is connected through a screw thread adjusting screw rod
(4006), the bottom of the nut (4004) is fixedly connected female connector (4009) by screw, the bottom of the adjusting screw rod (4006)
Portion is extend between spherical gland (4054) and ball bowl (4015), is equipped with work between the ball bowl (4015) and cylinder body (4019)
It fills in (4016), is equipped with O-ring retaining ring (4017) between piston (4016) and ball bowl (4015), the cylinder body (4019) passes through screw
It is mounted in outer cover (4034), the outer cover (4034) and spherical gland (4054) are connected by screw and adjusting pad (4027)
The top of cover board (4013), the cover board (4013) is equipped with dustproof cover (4026), and the bottom of the adjusting screw rod (4006) passes through
It sells directly to households (4011) connecting joint (4010), is additionally provided with capping (4014) on the ball bowl (4015), the side of the cylinder body (4019)
Face is equipped with transition segment (4018), is additionally provided with centering spindle (4020) between the outer cover (4034) and support plate (40078).
2. a kind of open type two point high-performance press slide block structure according to claim 1, which is characterized in that the side plate
(40074) it is equipped on vernier seat (4028), the outside of vernier seat (4028) is equipped with oil ga(u)ge B (4029) and oily window (4030).
3. a kind of open type two point high-performance press slide block structure according to claim 1, which is characterized in that the bottom plate
(40071) oil storage box (4012) are additionally provided with below.
4. a kind of open type two point high-performance press slide block structure according to claim 1, which is characterized in that the bottom plate
(40071) bottom offers through hole.
5. a kind of open type two point high-performance press slide block structure according to claim 1, which is characterized in that the upper axis
The gap that watt (4002) and lower bearing (4003) surround is passed through for crankshaft.
6. a kind of open type two point high-performance press slide block structure according to claim 1, which is characterized in that the adjusting
The bottom of screw rod (4006) is arranged to spherical structure.
7. a kind of open type two point high-performance press slide block structure according to claim 1, which is characterized in that the guide rail
(40075) inside groove is arranged to rectangular configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910083924.5A CN109622851A (en) | 2019-01-25 | 2019-01-25 | A kind of open type two point high-performance press slide block structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910083924.5A CN109622851A (en) | 2019-01-25 | 2019-01-25 | A kind of open type two point high-performance press slide block structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109622851A true CN109622851A (en) | 2019-04-16 |
Family
ID=66062499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910083924.5A Pending CN109622851A (en) | 2019-01-25 | 2019-01-25 | A kind of open type two point high-performance press slide block structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109622851A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH106095A (en) * | 1996-06-25 | 1998-01-13 | Aida Eng Ltd | Dynamic balancing device of press machine |
| CN104290344A (en) * | 2014-10-16 | 2015-01-21 | 南京航空航天大学 | Double-servo-motor-driven multi-connection-rod press machine and working method |
| CN104669673A (en) * | 2015-02-03 | 2015-06-03 | 宁波郎泰机械有限公司 | Slider component for press machine |
| CN204526229U (en) * | 2015-01-23 | 2015-08-05 | 上海远都机床股份有限公司 | Single-point type forcing press enhanced high-speed slide block |
| CN106926511A (en) * | 2017-05-11 | 2017-07-07 | 荣成华东锻压机床股份有限公司 | Punching machine electromechanical overload is protected and stretching device and method |
| CN206781098U (en) * | 2017-10-31 | 2017-12-22 | 浙江易锻精密机械有限公司 | A kind of sliding block automatic regulating apparatus |
-
2019
- 2019-01-25 CN CN201910083924.5A patent/CN109622851A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH106095A (en) * | 1996-06-25 | 1998-01-13 | Aida Eng Ltd | Dynamic balancing device of press machine |
| CN104290344A (en) * | 2014-10-16 | 2015-01-21 | 南京航空航天大学 | Double-servo-motor-driven multi-connection-rod press machine and working method |
| CN204526229U (en) * | 2015-01-23 | 2015-08-05 | 上海远都机床股份有限公司 | Single-point type forcing press enhanced high-speed slide block |
| CN104669673A (en) * | 2015-02-03 | 2015-06-03 | 宁波郎泰机械有限公司 | Slider component for press machine |
| CN106926511A (en) * | 2017-05-11 | 2017-07-07 | 荣成华东锻压机床股份有限公司 | Punching machine electromechanical overload is protected and stretching device and method |
| CN206781098U (en) * | 2017-10-31 | 2017-12-22 | 浙江易锻精密机械有限公司 | A kind of sliding block automatic regulating apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203717809U (en) | Synchronous belt drive guide rail device | |
| CN202826451U (en) | Closed type three-point high-speed fine press machine | |
| CN202271547U (en) | Integral open type inclinable press | |
| CN103624165B (en) | The split type supporting construction of a kind of upper and lower axle system of fin forming machine | |
| CN109622851A (en) | A kind of open type two point high-performance press slide block structure | |
| CN201319051Y (en) | Sheet type semiconductor element test mechanism | |
| CN201833627U (en) | Shear type cutting intending machine | |
| CN109622852B (en) | Open type double-point press | |
| CN207787408U (en) | A kind of adjustable press machine | |
| CN208216113U (en) | A kind of Paperboard cutting device for packing box production | |
| CN209080799U (en) | Carrier automatically opens mechanism | |
| CN101941297A (en) | Transmission device of mechanical elbow rod type servo press | |
| CN111390016A (en) | Sheet metal blanking and punching device on automobile welding jig | |
| CN203046307U (en) | High-speed press machine ball head gap adjusting mechanism | |
| CN206677512U (en) | A kind of jump ring erecting device | |
| CN205364587U (en) | Novel punch | |
| CN210590503U (en) | Extension and sealing linkage device of rotary bottle blowing machine | |
| CN212329422U (en) | Sheet metal blanking and punching device on automobile welding jig | |
| CN210437466U (en) | Packagine machine running gear | |
| CN204867003U (en) | Numerical control punch | |
| CN209255578U (en) | A kind of novel pressure device for fine micro part | |
| CN210390183U (en) | Multi-connecting-rod stamping mechanism of stamping equipment | |
| CN113500804A (en) | Crank press with overload protection | |
| CN207479385U (en) | A kind of punching mechanism and base material blanking apparatus | |
| CN209140269U (en) | One kind is gathered more bolt synchronous device for screwing up |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190416 |
|
| RJ01 | Rejection of invention patent application after publication |