CN104826942A - Stamping die and wedge mechanism thereof - Google Patents
Stamping die and wedge mechanism thereof Download PDFInfo
- Publication number
- CN104826942A CN104826942A CN201510263364.3A CN201510263364A CN104826942A CN 104826942 A CN104826942 A CN 104826942A CN 201510263364 A CN201510263364 A CN 201510263364A CN 104826942 A CN104826942 A CN 104826942A
- Authority
- CN
- China
- Prior art keywords
- roller
- guide plate
- wedge mechanism
- slide block
- slide
- 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.)
- Granted
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Classifications
-
- 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
- B30B1/40—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 wedge means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
- B21D37/12—Particular guiding equipment, e.g. pliers; Special arrangements for interconnection or cooperation of dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/32—Perforating, i.e. punching holes in other articles of special shape
- B21D28/325—Perforating, i.e. punching holes in other articles of special shape using cam or wedge mechanisms, e.g. aerial cams
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
The invention discloses a stamping die and a wedge mechanism thereof. The wedge mechanism comprises a roller installed on a slider through a rotary shaft, the roller rotates around the rotary shaft and relative to the slider, and the tangential direction of the roller is the sliding direction of a concave V-shaped guide plate and a convex V-shaped guide plate; a drive base is provided with a roller drive base, a sliding guide face of the roller drive base is matched with the roller, and the roller rolls along the sliding guide face. Thus, by means of the roller structure, before the concave V-shaped guide plate on the slider makes contact with the convex V-shaped guide plate, the slider and a trimming or flanging insert installed on the slider are pushed to move close to a board due to the fact that the roller moves along the sliding guide face, trimming, flanging and shaping can be carried out, the size is small under the same slider moving stroke, and accordingly machining and manufacturing cost is reduced. Besides, installation space of the wedge mechanism in the stamping die is reduced, the size of the die is reduced, and die development cost is reduced.
Description
Technical field
The present invention relates to Stamping Die Technology field, particularly relate to a kind of Wedge mechanism for diel.The invention still further relates to a kind of diel comprising above-mentioned Wedge mechanism.
Background technology
Body of a motor car stamping parts mostly is stereochemical structure and profile moulding is complicated, when stamping, there is angle in partial hole or face and pressing direction (i.e. vertical direction), cannot be existing by square impact compacting, and Wedge mechanism can change moving both vertically of punching press into horizontal movement or banking motion, thus effectively solve this problem.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is the structural representation of a kind of typical Wedge mechanism in prior art; Fig. 2 is for driving the structural representation of pedestal in Wedge mechanism shown in Fig. 1.
As shown in Figure 1-2, this existing Wedge mechanism mainly comprises mounting base 11, backhaul limiting plate 12, pressing plate 13, slide block 2, insert installed surface 21, retracting spring, recessed V-type guide plate 4, convex V-type guide plate 5 and drives pedestal 6; Wherein, mounting base 11 is fixedly mounted on upper bolster, and backhaul limiting plate 12, pressing plate 13 are fixedly mounted on mounting base 11 by screw; It is inner that slide block 2 is movably arranged on mounting base 11 by pressing plate 13, and pressing plate 13 plays slide guide and slide block is limited in the effect of mounting base 11 inside; With insert installed surface 21 on slide block 2, repair punching or flange insert for fixed installation, retracting spring is arranged on slide block 2 top, completes the backhaul of rear slider 2 for punching press; Recessed V-type guide plate 4 is fixedly mounted on slide block 2, convex V-type guide plate 5 is fixedly mounted on and drives on pedestal 6, recessed V-type guide plate 4 coordinates slide guide with convex V-type guide plate 5, recessed V-type guide plate 4 and convex V-type guide plate 5 slidingly contact move and realize the driving of slide block 2, thus promote to be arranged on repairing on slide block 2 and to rush or flange insert carries out press work; Pedestal 6 is driven to be fixedly mounted on die shoe.
In punching course, after patrix moves downward certain distance, recessed V-type guide plate 4 and convex V-type guide plate 5 start to contact slide guide and lead, thus promote slide block 2 and be arranged on slide block 2 repairing punching or flange insert carry out press work content near product, until mould closes, press work terminates; After punching press completes, upper and lower mould is opened, and retracting spring promotes slide block 2 back resetting.
But when carrying out side punching, side deburring, side flanging re-shaping exercise stroke and being larger, the stroke of slide block 2 is also corresponding comparatively large, then convex V-type guide plate length needs longer, and then causes wedge body construction size to increase, cost increase; On the other hand, Wedge mechanism size becomes large, and its installing space in mould structure increases, and causing mold integral size to become large die cost increases, and may interfere with other operating mechanism.
Therefore, a kind of Wedge mechanism for diel is provided, to there is less volume under equal slide block movement stroke, thus reduce processing and manufacturing cost, and reduce the installing space of Wedge mechanism in diel, reduce die size, reducing mould development cost, needing the problem of solution with regard to becoming those skilled in the art badly.
Summary of the invention
The object of this invention is to provide a kind of Wedge mechanism for diel, to there is less volume under equal slide block movement stroke, thus reduce processing and manufacturing cost, and reduce the installing space of Wedge mechanism in diel, reduce die size, reduce mould development cost.Another object of the present invention is to provide a kind of diel comprising above-mentioned Wedge mechanism.
To achieve these goals, the invention provides a kind of Wedge mechanism of diel, comprise the slide block being installed on upper bolster by mounting base and pressing plate, with the driving pedestal being installed on die shoe, described slide block is provided with recessed V-type guide plate, described driving pedestal is provided with the convex V-type guide plate coordinated with described recessed V-type guide plate slide guide; Described slide block is also provided with roller by rotating shaft, and described roller rotates relative to described slide block around described rotating shaft, and it is tangentially the slide guide direction of described recessed V-type guide plate and described convex V-arrangement guide plate; Described driving pedestal is provided with roller and drives seat, and described roller drives the slide guide face of seat to match with described roller, and described roller rolls along described slide guide face; Along the direction of motion of slide block described during punching press, described roller is positioned at the rear of described recessed V-type guide plate, and described slide guide face is positioned at the rear of described convex V-type guide plate.
Preferably, also comprise the roller mount pad be installed on described slide block, described rotating shaft is fixed in described roller mount pad.
Preferably, described roller mount pad is U-shaped tower structure, and its opening horizontally set; The two side of described U-shaped tower structure offers via hole respectively, the two ends of described rotating shaft respectively with via hole interference fit described in two.
Preferably, when described roller is positioned at the lower end in described slide guide face, described recessed V-type guide plate and described convex V-type guide plate are in slide guide initial position.
Preferably, the first tangent plane that described slide guide face comprises arc surface, connects with the initial end of described arc surface, and the second tangent plane connected with the tail end of described arc surface.
The present invention also provides a kind of diel, and comprise upper bolster and the Wedge mechanism being installed on described upper bolster, described Wedge mechanism is Wedge mechanism as above.
Wedge mechanism provided by the present invention is used for diel, this Wedge mechanism comprises the slide block being installed on upper bolster by mounting base and pressing plate, with the driving pedestal being installed on die shoe, described slide block is provided with recessed V-type guide plate, described driving pedestal is provided with the convex V-type guide plate coordinated with described recessed V-type guide plate slide guide; Described slide block is also provided with roller by rotating shaft, and described roller rotates relative to described slide block around described rotating shaft, and it is tangentially the slide guide direction of described recessed V-type guide plate and described convex V-arrangement guide plate; Described driving pedestal is provided with roller and drives seat, and described roller drives the slide guide face of seat to match with described roller, and described roller rolls along described slide guide face; Along the direction of motion of slide block described during punching press, described roller is positioned at the rear of described recessed V-type guide plate, and described slide guide face is positioned at the rear of described convex V-type guide plate.
When press work starts, press moves downward, and when slide block and mounting base come downwards to predeterminated position with upper bolster, roller starts to contact with the initial end in the slide guide face on idler wheel driving motion block; Upper bolster continues to move downward, and roller rolls thus promotes slide block mass motion on the slide guide face of idler wheel driving motion block, and meanwhile, the retracting spring on slide block top starts to be compressed; Patrix continues descending, and slide block is driven until when roller moves to the tail end in slide guide face of idler wheel driving motion block, and recessed V-type guide plate coordinates with convex V-type guide plate slide guide; Subsequently, roller is separated with the slide guide face of idler wheel driving motion block, and recessed V-type guide plate and convex V-type guide plate start to contact slide guide and lead; Patrix continues descending, and move by the slide guide of recessed V-type guide plate and convex V-type guide plate, to make slide block continue to be driven to product close, and the retracting spring continuation on slide block top is compressed, until mould is closed, press work terminates.
Like this, in Wedge mechanism provided by the present invention, by the application of roller structure, before recessed V-arrangement guide plate on slide block is not yet contacted with convex V-arrangement guide plate, just can by roller along the movement progress slide block in slide guide face and be arranged on slide block repairing punching or flange insert is moved to plate is close, start to carry out repairing punching, flanging and restriking action, achieve, under equal slide block movement stroke, there is less volume, thus reduce processing and manufacturing cost, and reduce the installing space of Wedge mechanism in diel, reduce die size, reduce mould development cost.
In a preferred embodiment, in Wedge mechanism provided by the present invention, when its roller is positioned at the lower end in described slide guide face, described recessed V-type guide plate and described convex V-type guide plate are in slide guide initial position; Like this, at the end of the slide guide in roller and slide guide face, recessed V-type guide plate and convex V-type guide plate just slide guide start, and improve the transition smoothness between two kinds of slide guide modes.
In another preferred embodiment, in Wedge mechanism provided by the present invention, the first tangent plane that its slide guide face comprises arc surface, connects with the initial end of described arc surface, and the second tangent plane connected with the tail end of described arc surface; Like this, roller enters with tangential direction and leaves slide guide face, ensure that guide direction when roller enters and leaves.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the present invention, for those of ordinary skill in the art, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of typical Wedge mechanism in prior art;
Fig. 2 is for driving the structural representation of pedestal in Wedge mechanism shown in Fig. 1;
Fig. 3 is the structural representation of a kind of detailed description of the invention of Wedge mechanism provided by the present invention;
Fig. 4 for Wedge mechanism shown in Fig. 3 be in roller drive initial position time part-structure figure;
Fig. 5 for Wedge mechanism shown in Fig. 3 be in roller drive end position time part-structure figure;
Fig. 6 is part-structure figure when Wedge mechanism shown in Fig. 3 is in mold closed condition;
Fig. 7 is for driving the structural representation of pedestal in Wedge mechanism shown in Fig. 3.
Description of reference numerals:
In Fig. 1-2:
11-mounting base 12-backhaul limiting plate 13-pressing plate 2-slide block 21-insert installed surface
4-recessed V-type guide plate 5-convex V-type guide plate 6-drives pedestal
In Fig. 3-7:
The recessed V-type guide plate of 201-mounting base 202-pressing plate 203-slide block 2031-
2032-insert installed surface 204-drives pedestal 2041-convex V-type guide plate 205-rotating shaft
206-roller 207-roller drives seat 2071-arc surface 2072-first tangent plane
2072-second tangent plane 208-roller mount pad 209-retracting spring
Detailed description of the invention
Core of the present invention is to provide a kind of Wedge mechanism for diel, to there is less volume under equal slide block movement stroke, thus reduce processing and manufacturing cost, and reduce the installing space of Wedge mechanism in diel, reduce die size, reduce mould development cost.Another core of the present invention is to provide a kind of diel comprising above-mentioned Wedge mechanism.
In order to make those skilled in the art understand technical scheme of the present invention better, below in conjunction with accompanying drawing, the present invention is further detailed.
As shown in fig. 3 to 7, in a kind of detailed description of the invention, Wedge mechanism provided by the present invention is used for diel, this Wedge mechanism comprises the mounting base 201 be fixed on upper bolster, pressing plate 202 is fixedly mounted on mounting base 201 by screw, slide block 203 is movably installed in the inside of this mounting base 201 by pressing plate 202, pressing plate 202 has slide guide and slide block 203 is limited to the effect of mounting base 201 inside, this slide block 203, with insert installed surface 2032, repaiies punching or flange insert for fixed installation; Die shoe is provided with and drives pedestal 204, described slide block 203 is provided with recessed V-type guide plate 2031, described driving pedestal 204 is provided with the convex V-type guide plate 2041 coordinated with described recessed V-type guide plate 2031 slide guide; Described slide block 203 is also provided with roller 206 by rotating shaft 205, and described roller 206 rotates relative to described slide block 203 around described rotating shaft 205, and it is tangentially the slide guide direction of described recessed V-type guide plate 2031 and described convex V-arrangement guide plate; Described driving pedestal 204 is provided with roller and drives seat 207, and described roller drives the slide guide face of seat 207 to match with described roller 206, and described roller 206 rolls along described slide guide face; Along the direction of motion of slide block 203 described during punching press, described roller 206 is positioned at the rear of described recessed V-type guide plate 2031, and described slide guide face is positioned at the rear of described convex V-type guide plate 2041; In addition, same as the prior art, in order to realize the reset of slide block 203, slide block 203 is also provided with return spring 209.
When press work starts, press moves downward, and when slide block 203 and mounting base 201 come downwards to predeterminated position with upper bolster, roller 206 starts to contact with the initial end in the slide guide face on idler wheel driving motion block; Upper bolster continues to move downward, and roller 206 rolls thus promotes slide block 203 mass motion on the slide guide face of idler wheel driving motion block, and meanwhile, the retracting spring on slide block 203 top starts to be compressed; Patrix continues descending, and slide block 203 is driven until when roller 206 moves to the tail end in slide guide face of idler wheel driving motion block, and recessed V-type guide plate 2031 coordinates with convex V-type guide plate 2041 slide guide; Subsequently, roller 206 is separated with the slide guide face of idler wheel driving motion block, and recessed V-type guide plate 2031 and convex V-type guide plate 2041 start to contact slide guide and lead; Patrix continues descending, being moved by recessed V-type guide plate 2031 and the slide guide of convex V-type guide plate 2041, to make slide block 203 continue to be driven to product close, the retracting spring on slide block 203 top continues to be compressed, until mould closes, press work terminates, upper bolster is up, and retracting spring release pressure also promotes slide block 203 back resetting.
Like this, in Wedge mechanism provided by the present invention, by the application of roller structure, before recessed V-arrangement guide plate on slide block 203 is not yet contacted with convex V-arrangement guide plate, just can by roller 206 along the movement progress slide block 203 in slide guide face and be arranged on slide block 203 repairing punching or flange insert is moved to plate is close, start to carry out repairing punching, flanging and restriking action, achieve, under the movement travel of equal slide block 203, there is less volume, thus reduce processing and manufacturing cost, and reduce the installing space of Wedge mechanism in diel, reduce die size, reduce mould development cost.
In order to improve reliability and the convenience of roller 206 installation, roller mount pad 208 can be set on slide block 203, described rotating shaft 205 is fixed in described roller mount pad 208, roller 206 is socketed on rotating shaft 205 rotationally, is arranged on slide block 203 by roller mount pad 208 by roller 206; Apparently, also rotating shaft 205 can be directly installed on slide block 203.
Above-mentioned rollers mount pad 208 can be fixed on slide block 203 by conventional meanses such as welding, clamping or bolt connections.
Particularly, this roller mount pad 208 can be U-shaped tower structure, and its opening horizontally set; The two side of described U-shaped tower structure offers via hole respectively, the two ends of described rotating shaft 205 respectively with via hole interference fit described in two, a part for roller 206 is embedded in the opening of this U-shaped tower structure, compacter with formula structure, and simplify the installation process of rotating shaft 205 and roller mount pad 208; The two ends of rotating shaft 205 also can adopt the modes such as welding or clamping to be fixed in roller mount pad 208.Should be understood that, roller 206 should stretch in U-shaped tower structure, to ensure to contact with the smooth of slide guide face outside part.
Further, when roller 206 is positioned at the lower end in described slide guide face, described recessed V-type guide plate 2031 is in slide guide initial position with described convex V-type guide plate 2041; Like this, at the end of the slide guide in roller 206 and slide guide face, recessed V-type guide plate 2031 and convex V-type guide plate 2041 just slide guide start, and improve the transition smoothness between two kinds of slide guide modes.In theory, when roller 206 also can be positioned at other appropriate locations except lower end, slide guide face, namely described recessed V-type guide plate 2031 is in slide guide initial position with described convex V-type guide plate 2041.
The first tangent plane 2072 that above-mentioned slide guide face comprises arc surface 2071, connects with the initial end of described arc surface 2071, and the second tangent plane 2073 connected with the tail end of described arc surface 2071; Like this, roller 206 enters with tangential direction and leaves slide guide face, ensure that guide direction when roller 206 enters and leaves; In theory, slide guide face may also be only arc surface 2071, or slide guide face can be also elliptical arc surface 2071, as long as can ensure that slide guide face is level and smooth, realizes coordinating with roller 206 leading.
Below for above-mentioned detailed description of the invention, sketch the course of work of Wedge mechanism provided by the present invention.
Press work starts press and moves downward, and slide block 203 and mounting base 201 entirety move downward with upper bolster, and after motion predeterminable range, roller 206 starts to contact with the top of the arc surface 2071 on idler wheel driving motion block; Patrix continues to move downward, rolling movement on the arc surface 2071 of roller 206 on idler wheel driving motion block thus promote slide block 203 mass motion, and meanwhile, the retracting spring on slide block 203 top starts to be compressed; Patrix continues to move downward, slide block 203 is driven until when roller 206 moves to arc surface 2071 tail end on idler wheel driving motion block, recessed V-type guide plate 2031 just starts to contact with convex V-type guide plate 2041, subsequently, roller 206 is separated with the arc surface 2071 on idler wheel driving motion block, and recessed V-type guide plate 2031 and convex V-type guide plate 2041 start to contact slide guide and lead; Patrix continues to move downward, and continues to be driven to product close by the slide guide moving slide block 203 of V-type guide plate, and the retracting spring on slide block 203 top continues to be compressed, until mould closes, press work terminates; Press work terminates, and upper and lower mould is opened, and retracting spring promotes slide block 203 back resetting.
It is pointed out that ordinal numbers such as " first, second " described in literary composition is the different structure in order to distinguish same names, only for convenience, not representing certain order, more should not be construed as any restriction.
Except above-mentioned Wedge mechanism, the present invention also provides a kind of diel comprising above-mentioned Wedge mechanism, and other each several parts of this diel please refer to prior art, do not repeat them here.
Mode above only by illustrating describes some one exemplary embodiment of the present invention, undoubtedly, for those of ordinary skill in the art, when without departing from the spirit and scope of the present invention, can revise described embodiment by various different mode.Therefore, above-mentioned accompanying drawing is illustrative with being described in essence, should not be construed as the restriction to the claims in the present invention protection domain.
Claims (6)
1. the Wedge mechanism of a diel, comprise the slide block (203) being installed on upper bolster by mounting base (201) and pressing plate (202), with the driving pedestal (204) being installed on die shoe, described slide block (203) is provided with recessed V-type guide plate (2031), described driving pedestal (204) is provided with the convex V-type guide plate (2041) coordinated with described recessed V-type guide plate (2031) slide guide; It is characterized in that,
Described slide block (203) is also provided with roller (206) by rotating shaft (205), described roller (206) rotates relative to described slide block (203) around described rotating shaft (205), and it is tangentially the slide guide direction of described recessed V-type guide plate (2031) and described convex V-arrangement guide plate;
Described driving pedestal (204) is provided with roller and drives seat (207), described roller drives the slide guide face of seat (207) to match with described roller (206), and described roller (206) rolls along described slide guide face;
Along the direction of motion of slide block (203) described during punching press, described roller (206) is positioned at the rear of described recessed V-type guide plate (2031), and described slide guide face is positioned at the rear of described convex V-type guide plate (2041).
2. Wedge mechanism according to claim 1, it is characterized in that, also comprise the roller mount pad (208) be installed on described slide block (203), described rotating shaft (205) is fixed in described roller mount pad (208).
3. Wedge mechanism according to claim 2, is characterized in that, described roller mount pad (208) is U-shaped tower structure, and its opening horizontally set; The two side of described U-shaped tower structure offers via hole respectively, the two ends of described rotating shaft (205) respectively with via hole interference fit described in two.
4. the Wedge mechanism according to any one of claim 1-3, it is characterized in that, when described roller (206) is positioned at the lower end in described slide guide face, described recessed V-type guide plate (2031) and described convex V-type guide plate (2041) are in slide guide initial position.
5. Wedge mechanism according to claim 4, it is characterized in that, the first tangent plane (2072) that described slide guide face comprises arc surface (2071), connects with the initial end of described arc surface (2071), and the second tangent plane (2073) connected with the tail end of described arc surface (2071).
6. a diel, comprise upper bolster and the Wedge mechanism being installed on described upper bolster, it is characterized in that, described Wedge mechanism is the Wedge mechanism as described in any one of claim 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510263364.3A CN104826942B (en) | 2015-05-21 | 2015-05-21 | A kind of diel and its Wedge mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510263364.3A CN104826942B (en) | 2015-05-21 | 2015-05-21 | A kind of diel and its Wedge mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104826942A true CN104826942A (en) | 2015-08-12 |
| CN104826942B CN104826942B (en) | 2017-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510263364.3A Expired - Fee Related CN104826942B (en) | 2015-05-21 | 2015-05-21 | A kind of diel and its Wedge mechanism |
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Cited By (6)
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| CN106391880A (en) * | 2016-11-28 | 2017-02-15 | 湖南同心模具制造有限公司 | Novel sliding block type guide structure for upper mold and lower mold |
| CN106623585A (en) * | 2016-12-15 | 2017-05-10 | 安徽江淮汽车集团股份有限公司 | Trimming and punching method and mold set |
| CN111438245A (en) * | 2020-04-09 | 2020-07-24 | 武汉东风科尔模具标准件有限公司 | Floating material pressing wedge device |
| CN112544576A (en) * | 2020-12-03 | 2021-03-26 | 中国水产科学研究院东海水产研究所 | Bottom trawl with bottom release structure |
| CN113695467A (en) * | 2021-06-23 | 2021-11-26 | 东风本田汽车有限公司 | Composite die and method for trimming automobile panoramic sunroof top cover |
| CN113714378A (en) * | 2020-05-26 | 2021-11-30 | 广西汽车集团有限公司 | Trimming die and trimming process of vehicle axle housing |
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| CN106391880A (en) * | 2016-11-28 | 2017-02-15 | 湖南同心模具制造有限公司 | Novel sliding block type guide structure for upper mold and lower mold |
| CN106623585A (en) * | 2016-12-15 | 2017-05-10 | 安徽江淮汽车集团股份有限公司 | Trimming and punching method and mold set |
| CN106623585B (en) * | 2016-12-15 | 2018-04-13 | 安徽江淮汽车集团股份有限公司 | Repair punching method and repair stamping die group |
| CN111438245A (en) * | 2020-04-09 | 2020-07-24 | 武汉东风科尔模具标准件有限公司 | Floating material pressing wedge device |
| CN113714378A (en) * | 2020-05-26 | 2021-11-30 | 广西汽车集团有限公司 | Trimming die and trimming process of vehicle axle housing |
| CN112544576A (en) * | 2020-12-03 | 2021-03-26 | 中国水产科学研究院东海水产研究所 | Bottom trawl with bottom release structure |
| CN113695467A (en) * | 2021-06-23 | 2021-11-26 | 东风本田汽车有限公司 | Composite die and method for trimming automobile panoramic sunroof top cover |
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| CN104826942B (en) | 2017-03-15 |
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