CN203470617U - Flat hole stamping mould - Google Patents
Flat hole stamping mould Download PDFInfo
- Publication number
- CN203470617U CN203470617U CN201320437285.6U CN201320437285U CN203470617U CN 203470617 U CN203470617 U CN 203470617U CN 201320437285 U CN201320437285 U CN 201320437285U CN 203470617 U CN203470617 U CN 203470617U
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- cavity die
- upper cavity
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Abstract
The utility model provides a flat hole stamping mould which comprises an upper mould and a lower mould, wherein the lower mould comprises a lower mould plate, a concave mould mounted on the lower mould plate, a horizontal positioning assembly and a longitudinal positioning assembly; the concave mould comprise a lower concave mould and upper concave moulds symmetrically arranged on the two sides of the lower concave mould; a through flat hole is formed in the upper part of the lower concave mould, the bottom of the lower concave mould is in a hollow shape, and a first concave surface is arranged on the top surface of the lower concave mould; second concave surfaces are arranged on the inner sides of the upper concave moulds and are matched with the first concave surface to form a clamping surface used for clamping a part to be stamped; the lower concave mould is fixed to the lower mould plate through the horizontal positioning assembly, and the two upper concave moulds are connected with the horizontal positioning assembly through an elastic device; the upper mould comprises an upper mould plate, a stamping head mounted on the upper mould plate, and two upper slide blocks; the bottom of the stamping head is matched with the flat hole; the upper slide blocks are symmetrically arranged on the two sides of the stamping head, and the inner side surfaces of the upper slide blocks are matched with the outer side surfaces of the upper concave moulds. The flat hole stamping mould provided by the utility model is compact in structure and easy to operate, and can meet the requirement of large-batch quick production.
Description
Technical field
The utility model relates to stamping technology, relates in particular to a kind of flat pore stamping mould.
Background technology
Equipment department of Tiedaobu Transportation Bureau has proposed railway freight-car brake rigging and has adopted flat hole round pin for anticreep, the structure of flat hole round pin as shown in Figure 1, need to be in the afterbody punching press one of round pin 100 flat hole 21a, existing mould does not possess the condition that this Small Cylindrical part is carried out to punching press, need to again upgrade design, make it compact conformation, simple to operate, meet smoothly requirement of producing fast in enormous quantities.
Utility model content
The utility model provides a kind of flat pore stamping mould, and for overcoming defect of the prior art, realize and fast punching press is carried out in the flat hole on Small Cylindrical part, and compact conformation, simple to operate.
The utility model provides a kind of flat pore stamping mould, and this mould comprises upper die and lower die;
Described counterdie comprise for be installed on lower bolster on press bench face and be arranged on die on described lower bolster, for the located lateral assembly of the fixing described die from both sides and for the longitudinal register assembly of fixing described to be punched from two ends; Described die comprises lower cavity die and is symmetrically set in the upper cavity die of described lower cavity die both sides; Described lower cavity die top has the flat hole of perforation, and described lower cavity die bottom is hollow form, and described lower cavity die end face has the first concave surface; Described upper cavity die inner side all has the second concave surface, and described the second concave surface coordinates and is formed for clamping the clamping face of described to be punched with the first concave surface; Described lower cavity die is fixed on lower bolster by described located lateral assembly, described in two, between upper cavity die and located lateral assembly, all by elastic device, is connected;
Described patrix comprises for being arranged on cope match-plate pattern on stamping machine slide block, be arranged on drift on described cope match-plate pattern and two energy inserts between described upper cavity die and located lateral assembly and makes the relative close top shoe of described two upper cavity die under the action of stamping machine slide block; Described ram bottom and described flat hole are suitable; Described top shoe is symmetrically set in described drift both sides, and described top shoe medial surface and described upper cavity die lateral surface are suitable.
Wherein, described located lateral assembly comprises two located lateral unit that are symmetricly set on described die both sides, described in each, located lateral unit includes lower cavity die side block piece and upper cavity die side block piece, described lower cavity die side block piece and described upper cavity die side block piece are all fixed on described lower bolster, between described upper cavity die side block piece and described upper cavity die, all by described elastic device, are connected.
Further, described located lateral unit also comprises die side block piece, and described upper cavity die side block piece and lower cavity die side block piece are all fixed on described lower bolster by described die side block piece.
Particularly, described elastic device comprises spring shaft and spring, in described upper cavity die side block piece, has a stepped hole; Described spring shaft is arranged in this stepped hole and its one end is fixed on described upper cavity die side, and the other end has axial location step, and described spring is located on this spring shaft; Conflict on the step surface of described stepped hole in described spring one end, the other end is conflicted in described axial step.
Wherein, described top shoe bottom has an inverted U-lag, and the opening of described U-lag is greater than the external diameter of described spring shaft.
Particularly, described upper cavity die outside has first lozenges playing the guiding role, it is inverted L shaped that described top shoe is, described top shoe bottom has the second lozenges, described top shoe inner side has the 3rd lozenges, and described the second lozenges and the 3rd lozenges are all suitable with described the first lozenges.
Further, between described cope match-plate pattern and lower bolster, be provided with at least one guider, described guider comprise guide pin bushing and can stretch in described guide pin bushing and with the suitable guide pillar of described guide pin bushing.
The flat pore stamping mould that the utility model provides, original state, under the effect of elastic device, between two upper cavity dies in open mode, workpiece to be punched is placed on lower cavity die, longitudinal register assembly limits workpiece to be punched and can not vertically move, patrix moves downward under the effect of stamping machine slide block, two top shoes insert respectively between lower cavity die and upper cavity die side block piece, two upper cavity dies are relatively close, the first concave surface and two second concave surfaces form clamping face by to be punched fixing and die, in the process moving down at top shoe, drift moves down simultaneously, sliding block is descending while putting in place, between two upper cavity dies, there is a gap, flat hole upper-lower position centering on this gap and lower cavity die, drift is through the punching on workpiece to be punched of this gap, final drift passes the flat hole on lower cavity die and moves in the hollow space of lower cavity die bottom, the punching of flat hole completes, patrix is up with stamping machine slide block, top shoe exits between upper cavity die and upper cavity die side block piece, elastic device return, two upper cavity dies are automatically separated, the flat pore stamping the mould features compact structure that the utility model provides, simple to operate, can meet requirement of producing fast in enormous quantities.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art;
The top view of counterdie in the flat pore stamping mould that Fig. 2 provides for the utility model embodiment;
Fig. 3 is along A-A to cutaway view in Fig. 2;
The front view of patrix in the flat pore stamping mould that Fig. 4 provides for the utility model embodiment;
The state reference map one of the flat pore stamping mould that Fig. 5 provides for the utility model embodiment;
The state reference map two of the flat pore stamping mould that Fig. 6 provides for the utility model embodiment;
The front view of lower cavity die in the flat pore stamping mould that Fig. 7 provides for the utility model embodiment;
Fig. 8 is the top view of Fig. 7;
The front view of upper cavity die in the flat pore stamping mould that Fig. 9 provides for the utility model embodiment;
Figure 10 is the top view of Fig. 9;
The front view of drift in the flat pore stamping mould mould that Figure 11 provides for the utility model embodiment;
Figure 12 is the left view of Figure 11;
Figure 13 is the upward view of Figure 11.
The specific embodiment
As shown in Fig. 2-13, the utility model embodiment provides a kind of flat pore stamping mould, this mould comprises upper die and lower die, counterdie comprise for be installed on lower bolster on press bench face 1 and be arranged on die 2 on lower bolster, for the fixing located lateral assembly 3 of die and for fix the longitudinal register assembly 4 of to be punched 10 from two ends from both sides; Die 2 comprises lower cavity die 21 and is symmetrically set in the upper cavity die 22 of lower cavity die 21 both sides; Lower cavity die 21 tops have the flat hole 21a of perforation, and lower cavity die 21 bottoms are hollow form 21b, and lower cavity die 21 end faces have the first concave surface 21c; Upper cavity die 22 inner sides all have the second concave surface 22a, and the second concave surface 22a coordinates and is formed for clamping the clamping face 20 of to be punched with the first concave surface 21c; Lower cavity die 21 is fixed on lower bolster 1 by located lateral assembly 3, between two upper cavity dies 22 and located lateral assembly 3, all by elastic device 5, is connected; Hollow form 21b can be a hole, and effect is to provide a placement space for drift.
Patrix comprises for being arranged on cope match-plate pattern 6 on stamping machine slide block, be arranged on drift 7 on cope match-plate pattern 6 and two energy inserts between upper cavity die 22 and located lateral assembly 4 and makes the relative close top shoe 8 of two upper cavity dies 22 under the action of stamping machine slide block; Drift 7 bottoms and flat hole 21a are suitable; Top shoe 8 is symmetrically set in drift 7 both sides, and top shoe 8 medial surfaces and upper cavity die 22 lateral surfaces are suitable.
The flat pore stamping mould that the utility model provides, original state, under the effect of elastic device, between two upper cavity dies 22 in open mode, as Fig. 3, shown in Fig. 5, workpiece 10 to be punched is placed on the first concave surface 21c of lower cavity die 21, longitudinal register assembly 4 limits workpiece 10 to be punched and can not vertically move, patrix moves downward under the effect of stamping machine slide block, two top shoes 8 insert respectively between upper cavity die 22 and located lateral assembly 3, two upper cavity dies 22 are relatively close, as shown in Figure 6, the first concave surface and two second concave surfaces form clamping face and by to be punched fixing and die, in the process moving down at top shoe, drift moves down simultaneously, sliding block is descending while putting in place, between two upper cavity dies, there is all perforating 21as ' suitable with flat hole 21a of a gap or a shape and size, the upper and lower centering in 21a center, flat hole on this perforating 21a ' and lower cavity die, drift 7 is through this perforating 21a ' punching on workpiece to be punched, final drift 7 passes the flat hole 21a on lower cavity die 21 and moves in the hollow space of lower cavity die 21 bottoms, the punching of flat hole completes, patrix is up with stamping machine slide block, top shoe 8 exits between upper cavity die 22 and located lateral assembly 3, elastic device return, two upper cavity dies 22 are automatically separated, the flat pore stamping the mould features compact structure that the utility model provides, simple to operate, can meet requirement of producing fast in enormous quantities.Elastic device 5 in the present embodiment role is elasticity to connect upper cavity die 22 and located lateral assembly 3, before punching press, by elastic device, two upper cavity dies 22 are pulled separated, during punching press, top shoe 8 can be cut between upper cavity die 22 and located lateral assembly 3, and elastic device generation strain, in the process of top shoe 8 incisions, complete located lateral, the vertical direction location for the treatment of stamped workpieces, and then complete punching.
The specific embodiment as above-described embodiment, located lateral assembly comprises two located lateral unit that are symmetricly set on die 2 both sides, each located lateral unit includes lower cavity die side block piece 31 and upper cavity die side block piece 32, lower cavity die side block piece 31 and upper cavity die side block piece 32 are all fixed on lower bolster 1, between upper cavity die side block piece 32 and upper cavity die 22, all by elastic device 5, are connected.Lower cavity die 21 is fixed on lower bolster 1 all the time by lower cavity die side block piece 31, and the opening and closing movement of upper cavity die 22 realizes elastic device generation strain by the action of top shoe 8, and compact conformation, is active in one's movements.
On the basis of above-described embodiment, located lateral unit also comprises die side block piece 33, and upper cavity die side block piece 32 is all fixed on lower bolster 1 by die side block piece 33 with lower cavity die side block piece 31.Between lower cavity die side block piece 31 and die side block piece 33, pass through to insert falcon respective outer side edges, realize location in the horizontal, when the shape and size of workpiece to be punched change, need to again process die, the size of die changes, the size of lower cavity die side block piece also must change, adopt the above-mentioned fixedly structure of lower cavity die side block piece of die side block piece of passing through, can meet by existing lower cavity die side block piece tie spacer the variation demand of different die sizes, and the new lower cavity die side block piece of unnecessary another processing, versatility is stronger, the scope of application is wide, and saved cost.Upper cavity die side block piece 32 also can consist of two or more the first block 32a spelling groups, and die side block piece 33 also can consist of two or more the second block 33a spelling groups.
As the specific embodiment of above-described embodiment, elastic device 5 comprises spring shaft 51 and spring 52, has a stepped hole 50 in upper cavity die side block piece 32; Spring shaft 51 is arranged in this stepped hole 50 and its one end is fixed on upper cavity die 22 sides, and the other end has axial location step 53, and spring 52 is located on this spring shaft 51; Conflict on the step surface 50a of stepped hole 50 in spring 52 one end, the other end is conflicted in axial step 53.Before punching press, spring 52 is in compressive state, upper cavity die 22 lateral surfaces and 32 laminatings of upper cavity die side block piece, upper cavity die 22 medial surfaces and lower cavity die 21 have gap, during punching press, top shoe 8 inserts between upper cavity die 22 and upper cavity die side block piece 32, upper cavity die 22 is forced to leave with upper cavity die side block piece 32, because upper cavity die side block piece 32 is fixed on lower bolster 1, upper cavity die 22 is close to lower cavity die 21 directions, two upper cavity dies 22 drive respectively two spring shafts 51 to workpiece 10 places motion to be punched, workpiece 10 to be punched is fixed in clamping face 20, to treat that drift 7 completes the punching in flat hole downwards, said structure has simple in structure, the advantage of reliable in action.
On the basis of above-described embodiment, top shoe 8 bottoms have an inverted U-lag 81, and the opening of U-lag 81 is greater than the external diameter of spring shaft 51.When top shoe 8 moves downward, spring shaft 51 is placed in U-lag 81.
Preferred embodiment as above-described embodiment, upper cavity die 22 outsides have a first lozenges 22b who play the guiding role, it is inverted L shaped that top shoe 8 is, top shoe 8 bottoms have the second lozenges 82, top shoe 8 inner sides there are the 3rd lozenges 83, the second lozenges 82 and the 3rd lozenges 83 all suitable with the first lozenges 22b.When top shoe 8 moves down, first the second lozenges 82 contacts with the first lozenges 22b, the cooperation of two lozenges is convenient between top shoe incision upper cavity die and upper cavity die side block piece, until top shoe, move down while putting in place, the 3rd lozenges 83 and the first lozenges 81 laminatings, limit the movement of upper cavity die by top shoe.
On the basis of above-described embodiment, in order to increase patrix with respect to the guidance quality of counterdie motion, between cope match-plate pattern 6 and lower bolster 1, be provided with at least one guider, guider comprise guide pin bushing 91 with can stretch in guide pin bushing 91 and with the suitable guide pillar 92 of guide pin bushing.In the present embodiment, guide pin bushing 91 upper ends are fixed on cope match-plate pattern 6, and lower end suspends; Guide pillar 92 lower ends are fixed on lower bolster 1, and upper end suspends, and when patrix moves with respect to counterdie, guide pillar 92 penetrates in guide pin bushing 91, the movement locus that limits patrix that coordinates by guide pillar with guide pin bushing; Can certainly be that guide pin bushing is fixed on lower bolster, guide pillar be fixed on cope match-plate pattern, does not all affect the steering capability of the present embodiment.
The location that large problem is exactly side slide that this mold will mainly be considered in design process.This mold is thermal stamping die, and clamping, the reset difficulty of drift in punch process is very large, not only will clamp raw material, makes it by drift, not taken away, and after drift is withdrawn from addition, also will make side slide Rapid reset, and the dynamics of various aspects requires all very high.This just requires every location, resetting means safety, accurate, reliable.
Utilize three road side block piece combinations, top shoe to coordinate with the lozenges of upper cavity die and guarantee that frock folder is steady reliable, calculate the height of the first lozenges, the second lozenges and the 3rd lozenges, before guaranteeing drift contact raw material, upper cavity die clamps raw material, drift is opened upper cavity die after leaving raw material, well prevent the problem of product punching distortion, and by fixed block integrated positioning on lower bolster, guarantee that it is more reliable.
The action that this mould will complete is more, there is Automatic-clamping, open raw material, punching, Automatic-clamping, Unclosing structure are conventional side slide structure or hydraulic means, hydraulic device structure more complicated, so this mould selects side slide structure, solid and reliable in order to guarantee to clamp, should select multiple positioner, will prevent that structure is fixed on lower bolster.
In the global design of mould, there is a very important parameter to want emphasis to consider, be the length of punch length, top shoe, the height of the length of upper cavity die and the first lozenges,, the height of the second lozenges, the 3rd height of lozenges, the length of the length of guide pillar, guide pin bushing must be selected suitablely, puts in place to meet in punch process upper cavity die, located lateral assembly before drift contact product; Punching is complete, and after drift leaves product, located lateral assembly can unclamp, and what be finally defined as that guide pillar contacts with upper cavity die side block piece with the contact length > top shoe of guide pin bushing faces length > punch length directly.This mold actions speed is fast, and the workpiece uniformity of going out is better, and surface quality is also better.
Different forcing presses is slightly different to the requirement of this mold.Affect the punch press parameter of each size of mould: 1, the stroke of a press; 2, the relative dimensions of assembling mould; 3, shut height of press machine.For this reason, carry out concrete mould each several part size according to selected forcing press determines.
Finally it should be noted that: each embodiment, only in order to the technical solution of the utility model to be described, is not intended to limit above; Although the utility model is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (7)
1. a flat pore stamping mould, this mould comprises upper die and lower die; It is characterized in that,
Described counterdie comprise for be installed on lower bolster on press bench face and be arranged on die on described lower bolster, for the located lateral assembly of the fixing described die from both sides and for the longitudinal register assembly of fixing described to be punched from two ends; Described die comprises lower cavity die and is symmetrically set in the upper cavity die of described lower cavity die both sides; Described lower cavity die top has the flat hole of perforation, and described lower cavity die bottom is hollow form, and described lower cavity die end face has the first concave surface; Described upper cavity die inner side all has the second concave surface, and described the second concave surface coordinates and is formed for clamping the clamping face of described to be punched with the first concave surface; Described lower cavity die is fixed on lower bolster by described located lateral assembly, described in two, between upper cavity die and located lateral assembly, all by elastic device, is connected;
Described patrix comprises for being arranged on cope match-plate pattern on stamping machine slide block, be arranged on drift on described cope match-plate pattern and two energy inserts between described upper cavity die and located lateral assembly and makes the relative close top shoe of described two upper cavity die under the action of stamping machine slide block; Described ram bottom and described flat hole are suitable; Described top shoe is symmetrically set in described drift both sides, and described top shoe medial surface and described upper cavity die lateral surface are suitable.
2. flat pore stamping mould according to claim 1, it is characterized in that, described located lateral assembly comprises two located lateral unit that are symmetricly set on described die both sides, described in each, located lateral unit includes lower cavity die side block piece and upper cavity die side block piece, described lower cavity die side block piece and described upper cavity die side block piece are all fixed on described lower bolster, between described upper cavity die side block piece and described upper cavity die, all by described elastic device, are connected.
3. flat pore stamping mould according to claim 2, is characterized in that, described located lateral unit also comprises die side block piece, and described upper cavity die side block piece and lower cavity die side block piece are all fixed on described lower bolster by described die side block piece.
4. flat pore stamping mould according to claim 2, is characterized in that, described elastic device comprises spring shaft and spring, in described upper cavity die side block piece, has a stepped hole; Described spring shaft is arranged in this stepped hole and its one end is fixed on described upper cavity die side, and the other end has axial location step, and described spring is located on this spring shaft; Conflict on the step surface of described stepped hole in described spring one end, the other end is conflicted on described axial location step.
5. flat pore stamping mould according to claim 4, is characterized in that, described top shoe bottom has an inverted U-lag, and the opening of described U-lag is greater than the external diameter of described spring shaft.
6. according to the arbitrary described flat pore stamping mould of claim 1-5, it is characterized in that, described upper cavity die outside has first lozenges playing the guiding role, it is inverted L shaped that described top shoe is, described top shoe bottom has the second lozenges, described top shoe inner side has the 3rd lozenges, and described the second lozenges and the 3rd lozenges are all suitable with described the first lozenges.
7. flat pore stamping mould according to claim 6, is characterized in that, is provided with at least one guider between described cope match-plate pattern and lower bolster, described guider comprise guide pin bushing and can stretch in described guide pin bushing and with the suitable guide pillar of described guide pin bushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320437285.6U CN203470617U (en) | 2013-07-22 | 2013-07-22 | Flat hole stamping mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320437285.6U CN203470617U (en) | 2013-07-22 | 2013-07-22 | Flat hole stamping mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203470617U true CN203470617U (en) | 2014-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320437285.6U Expired - Fee Related CN203470617U (en) | 2013-07-22 | 2013-07-22 | Flat hole stamping mould |
Country Status (1)
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| CN (1) | CN203470617U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104084475A (en) * | 2014-06-26 | 2014-10-08 | 南京惠德机械有限公司 | Pipe fitting notching die |
| CN105414335A (en) * | 2015-11-18 | 2016-03-23 | 凌云工业股份有限公司 | Pressing mold for round tube class car bumper |
| CN105436296A (en) * | 2015-12-30 | 2016-03-30 | 南车眉山车辆有限公司 | Tool for punching wagon flat hole round pins on crank press |
| CN107262618A (en) * | 2017-06-30 | 2017-10-20 | 福州大学 | Detent mechanism and its method of work |
| CN109013888A (en) * | 2018-05-30 | 2018-12-18 | 旌德县华丰电子元件有限公司 | A kind of lower mold of receptacle sockets |
| CN109013885A (en) * | 2018-05-30 | 2018-12-18 | 旌德县华丰电子元件有限公司 | A kind of receptacle sockets upper mold |
| CN110508684A (en) * | 2019-07-02 | 2019-11-29 | 广东联塑安防科技有限公司 | A kind of box-like cover belling punching die |
| CN112756521A (en) * | 2019-11-04 | 2021-05-07 | 中车沈阳机车车辆有限公司 | Flat split pin forming tool |
| CN113275496A (en) * | 2021-05-27 | 2021-08-20 | 安徽康尼精密机械有限公司 | All-dimensional simultaneous forging die cavity mechanism and opening and closing method |
| CN113305254A (en) * | 2021-05-27 | 2021-08-27 | 安徽康尼精密机械有限公司 | One-way-to-four-way automatic opening-closing type die frame structure and two-way synchronous extrusion forming process |
| CN117086176A (en) * | 2023-10-19 | 2023-11-21 | 山西迈杰模具制造有限公司 | Mould structure with balancing unit |
-
2013
- 2013-07-22 CN CN201320437285.6U patent/CN203470617U/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104084475A (en) * | 2014-06-26 | 2014-10-08 | 南京惠德机械有限公司 | Pipe fitting notching die |
| CN104084475B (en) * | 2014-06-26 | 2016-08-31 | 南京惠德机械有限公司 | Pipe fitting notch die |
| CN105414335A (en) * | 2015-11-18 | 2016-03-23 | 凌云工业股份有限公司 | Pressing mold for round tube class car bumper |
| CN105436296A (en) * | 2015-12-30 | 2016-03-30 | 南车眉山车辆有限公司 | Tool for punching wagon flat hole round pins on crank press |
| CN107262618A (en) * | 2017-06-30 | 2017-10-20 | 福州大学 | Detent mechanism and its method of work |
| CN107262618B (en) * | 2017-06-30 | 2023-09-01 | 福州大学 | Positioning mechanism and working method thereof |
| CN109013885A (en) * | 2018-05-30 | 2018-12-18 | 旌德县华丰电子元件有限公司 | A kind of receptacle sockets upper mold |
| CN109013888A (en) * | 2018-05-30 | 2018-12-18 | 旌德县华丰电子元件有限公司 | A kind of lower mold of receptacle sockets |
| CN110508684A (en) * | 2019-07-02 | 2019-11-29 | 广东联塑安防科技有限公司 | A kind of box-like cover belling punching die |
| CN112756521A (en) * | 2019-11-04 | 2021-05-07 | 中车沈阳机车车辆有限公司 | Flat split pin forming tool |
| CN113275496A (en) * | 2021-05-27 | 2021-08-20 | 安徽康尼精密机械有限公司 | All-dimensional simultaneous forging die cavity mechanism and opening and closing method |
| CN113305254A (en) * | 2021-05-27 | 2021-08-27 | 安徽康尼精密机械有限公司 | One-way-to-four-way automatic opening-closing type die frame structure and two-way synchronous extrusion forming process |
| CN113275496B (en) * | 2021-05-27 | 2024-06-21 | 安徽康尼精密机械有限公司 | All-dimensional simultaneous forging die cavity mechanism and opening and closing method |
| CN117086176A (en) * | 2023-10-19 | 2023-11-21 | 山西迈杰模具制造有限公司 | Mould structure with balancing unit |
| CN117086176B (en) * | 2023-10-19 | 2023-12-29 | 山西迈杰模具制造有限公司 | Mould structure with balancing unit |
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| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 110142 Shenyang economic and Technological Development Zone, Liaoning, Shenyang Road, No. 28 Patentee after: ZHONGCHE SHENYANG LOCOMOTIVE AND VEHICLE CO., LTD. Address before: 110142 Shenyang economic and Technological Development Zone, Liaoning, Shenyang Road, No. 28 Patentee before: China Beiche Group Shenyang Locomotive Vehicle Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20200722 |