CN104307976A - Pipe fitting punching device adopting split type core bar and pipe fitting punching method - Google Patents
Pipe fitting punching device adopting split type core bar and pipe fitting punching method Download PDFInfo
- Publication number
- CN104307976A CN104307976A CN201410415301.0A CN201410415301A CN104307976A CN 104307976 A CN104307976 A CN 104307976A CN 201410415301 A CN201410415301 A CN 201410415301A CN 104307976 A CN104307976 A CN 104307976A
- Authority
- CN
- China
- Prior art keywords
- core bar
- pipe fitting
- split type
- punching device
- punching
- 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
- 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
- B21D28/34—Perforating tools; Die holders
-
- 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
- B21D28/28—Perforating, i.e. punching holes in tubes or other hollow bodies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
Abstract
The invention belongs to the technical field of pipe fitting punching and notching, and discloses a pipe fitting punching device adopting a split type core bar and a pipe fitting punching method. The pipe fitting punching device comprises a male die for shaping a hole site and the core bar inserted in the pipe fitting, wherein the core bar comprises a first core bar and a second core bar; a tensioning/relaxing mechanism is arranged between the first core bar and the second core bar and enables the second core bar to radially move towards the first core bar when a second core bar shaft slides opposite to a first core bar shaft axially. The pipe fitting punching method adopts the pipe fitting punching device adopting the split type core bar. In the pipe fitting punching device adopting the split type core bar and the pipe fitting punching method provided by the invention, the core bar serving as the male die is divided into the first core bar and the second core bar, the tensioning/relaxing structure is mutually coordinated between the first core bar and the second core bar, in the working process, the tensioning/relaxing structure is coordinated to relax or tension the core bar in the pipe fitting according to the requirement, so as to enable the related die to achieve higher stamping efficiency, and enable the structure to be more compact and optimized.
Description
Technical field
The invention belongs to pipe fitting punching techniques field, particularly relate to a kind of punching device for pipe fittings and the pipe fitting hole-punching method that adopt split type core bar.
Background technology
Current pipe fitting, such as, header in air-conditioning is one of important greatly part of refrigeration system four, as the term suggests header is exactly the device of bye-pass fluid collection to main pipe, so header has some grooves and hole.At present, mainly adopt the mode of mould punching to carry out to the processing in the groove in the pipe fittings such as all kinds of headers and hole, and such mould normally needs core bar to inject in header to serve as die to coordinate punching press.
The core bar of traditional header punching die is all generally all-in-one-piece.Before punching press, operator inserts core bar header, after to be punched, after header being released certain distance from core bar by the cylinder with certain stroke, then transfers to staff.Being furnished with some pneumatic components and parts such as cylinder to carry out auxiliary operation is that such header is correlated with a large feature of diel, reason can produce burr at the hole periphery of header or the distortion of local occurs after punching, make header being stuck with core bar tightly, now directly it transfers to by manual being usually difficult to of employment from core bar.
There is comparatively big error in the caliber size that the manufacturability of shape extrusion determines current all kinds of header, namely the bore size of header has certain fluctuation range, so, has with it and strictly coordinate the outside dimension of the core bar required just to become to be difficult to determine.This is because, on the one hand, if the outside dimension of core bar coordinated pine with the internal diameter size of header, then header is inserted after core bar owing to there is relatively large gap between core bar and header, in punching course, core bar does not have supporting role and header can be made to deform or cave in, and affects punching precision; On the other hand, if the outside dimension of core bar coordinates tension with the internal diameter size of header, the header that then some internal diameter is less than normal inserts core bar will be comparatively difficult, and operator needs to spend larger strength or more time to be inserted in core bar, thus affects ram efficiency.
In addition, adopt traditional monoblock type core bar to carry out punching press, the stroke of required cylinder is also comparatively large, and therefore cylinder takes up space also comparatively large, is unfavorable for the structure optimization of mould.
Along with the intensified competition in the constantly soaring of manufacturing cost and manufacturing industry, thisly affect production efficiency, the header diel of monoblock type core bar that structure is optimized not can not satisfy the demands.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of punching device for pipe fittings and the pipe fitting hole-punching method that adopt split type core bar, its ram efficiency is high, stamping quality is high, and structure is more compact, optimization.
Technical scheme of the present invention is: a kind of punching device for pipe fittings adopting split type core bar, comprise for the punch of forming hole position with for inserting in the core bar in pipe fitting, described core bar comprises the first core bar and the second core bar, is provided with the relaxation structure of the relatively described first core bar radial motion of the second core bar described in when relative described first core bar of described second core bar axle slides axially between described first core bar with described second core bar.
Alternatively, described first core bar is or/and the second core bar is connected with for making described first core bar and the second core bar keep the elastic component of pressing close to.
Alternatively, described relaxation structure is be arranged at the cammed surface of described first core bar and be arranged at the cammed surface of described second core bar.
Alternatively, described relaxation structure is be arranged at the cambered surface of described first core bar and be arranged at the cambered surface of described second core bar.
Alternatively, described elastic component is spring.
Alternatively, described first core bar and described second core bar are oppositely arranged up and down, and described second core bar is connected with for driving described second core bar actuator in axial sliding, and described first core bar floats up or down under the effect of described second core bar.
Alternatively, described actuator is cylinder or oil cylinder.
Alternatively, the cross section semicircular in shape of described first core bar, the second core bar.
Present invention also offers a kind of pipe fitting hole-punching method adopting split type core bar, adopt the punching device for pipe fittings of the above-mentioned split type core bar of employing, comprise the following steps: the second core bar moves to first direction, first core bar and the second core bar near and be in relaxed state, pipe fitting is placed on described first core bar and the second core bar, second core bar moves to second direction and makes the first core bar by described relaxation structure, second core bar away from and be tensioned to the inner side of described pipe fitting, the punching on described pipe fitting of described punch, described second core bar moves to first direction, first core bar and the second core bar near and be in relaxed state, pipe fitting is extracted out from the first core bar and the second core bar.
Alternatively, the outside of described core bar is arranged with positioning sleeve, and when described pipe fitting is placed on described core bar, the end of described pipe fitting is resisted against described positioning sleeve.
The punching device for pipe fittings of the split type core bar of employing provided by the present invention and pipe fitting hole-punching method, its core bar serving as die is split type, be divided into the first core bar and the second core bar, and first, second core bar all has the relaxation structure cooperatively interacted, relaxation structure cooperatively interacts in the course of the work, realize core bar can relax as required in pipe fitting or the tensioning (insertion of pipe fitting and to go out the process of pulling out be relaxed state, be tensioning state during punching press), thus make the mould of being correlated with have higher ram efficiency, and structure is more compact, optimization.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the front view that in the punching device for pipe fittings of the split type core bar of employing that the embodiment of the present invention provides, core bar is in relaxed state;
Fig. 2 is the right view that in the punching device for pipe fittings of the split type core bar of employing that the embodiment of the present invention provides, core bar is in relaxed state;
Fig. 3 is the front view that in the punching device for pipe fittings of the split type core bar of employing that the embodiment of the present invention provides, core bar is in tensioning state;
Fig. 4 is the right view that in the punching device for pipe fittings of the split type core bar of employing that the embodiment of the present invention provides, core bar is in tensioning state.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
It should be noted that, when element is called as " being fixed on " or " being arranged at " another element, it can directly on another element or may there is centering elements simultaneously.When an element is known as " being connected to " another element, it can be directly connected to another element or may there is centering elements simultaneously.
Also it should be noted that, the orientation term such as left and right, upper and lower in the present embodiment, is only relative concept or be reference with the normal operating condition of product each other, and should not be regarded as have restrictive.
As shown in Figure 1 to 4, a kind of punching device for pipe fittings adopting split type core bar that the embodiment of the present invention provides, pipe fitting can be the metal tubes etc. such as the header in refrigeration system.The punching device for pipe fittings of the split type core bar of above-mentioned employing comprises for the punch 1 of forming hole position with for inserting in the core bar 2 in pipe fitting 3, can vertically arrange between core bar 2 with punch 1, in embody rule, first pipe fitting 3 can be placed on core bar 2, then by punch 1 punching press in the sidewall of pipe fitting 3 to go out groove, hole etc. at the sidewall of pipe fitting 3.Described core bar 2 comprises the first core bar 21 and the second core bar 22, is provided with the relaxation structure 20 of relatively described first core bar 21 radial motion of the second core bar 22 described in when relative described first core bar 21 of described second core bar 22 axle slides axially between described first core bar 21 with described second core bar 22.First core bar 21 and the involutory setting of the second core bar 22, when it misplaces to axial and slides, the first core bar 21, second core bar 22 can radially relative motion, thus realizes lax and tensioning, so that the insertion of pipe fitting 3 and punching press and extract.For ease of explanation, in the present embodiment, punch 1 is longitudinally vertical to be arranged, core bar 2 horizontal cross is placed, first core bar 21, second core bar about 22 is opposed or left and right is opposed is combined to form core bar 2, first core bar 21 can move up and down by relative second core bar 22, and the second core bar 22 can horizontally slip by relative first core bar 21 vertically.When (first direction) slides relative first core bar 21 of the second core bar 22 vertically to the right, under the effect of relaxation structure 20, relatively described first core bar 21 of second core bar 22 is radial close, thus the entire outer diameter size of core bar 2 is reduced, first core bar 21, second core bar 22 can be close to mutually, whole core bar 2 is in relaxed state (as depicted in figs. 1 and 2), and pipe fitting 3 can easily be placed on the core bar 2 of the first core bar 21, second core bar 22 composition.Pipe fitting 3 is placed on the first core bar 21, after the core bar 2 that second core bar 22 forms, when slide vertically left by (second direction) for relative first core bar 21 of the second core bar 22, under the effect of relaxation structure 20, relatively described first core bar 21 radial direction of second core bar 22 away from, thus the entire outer diameter size of core bar 2 is increased, whole core bar 2 is in tensioning state (as shown in Figure 3 and Figure 4), first core bar 21, the core bar 2 that second core bar 22 forms closely can be supported in the inner side of pipe fitting 3, to make punch 1 can exactly in the drilling of pipe fitting 3 upper punch, groove (such as mounting hole, circular hole) etc., shaping efficiency is high and Product Precision is high.
Particularly, as shown in Figure 1 to 4, described first core bar 21 is or/and the second core bar 22 is connected with for making described first core bar 21 and the second core bar 22 keep the elastic component (not shown) of pressing close to, when core bar 2 is in relaxed state, elastic component can guarantee that the first core bar 21, second core bar 22 keeps drawing close, so that the picking and placeing of pipe fitting 3.Described elastic component can be spring etc.
Particularly, described relaxation structure 20 can be the cammed surface being arranged at described first core bar 21 and the cammed surface being arranged at described second core bar 22, like this, when the first core bar 21, second core bar 22 slides to axial, the first core bar 21, second core bar 22 can radial near or away from.Relaxation structure 20 also can indentation, can make radially to produce relative motion when its axile displacement slides.By such design, its process operation carrying out punching to header is more efficient, structure is more optimized, reasonably make use of cooperatively interacting of first, second core bar 21,22 split type of band cammed surface, reach efficient punching press object, and formed product is effective.
The position at relaxation structure 20 place can be corresponding with the position of punching, and like this, relaxation structure 20 can play the effect of support in the position of punching.
Or described relaxation structure 20 also can be the cambered surface being arranged at described first core bar 21 and the cambered surface etc. being arranged at described second core bar 22.
Particularly, described first core bar 21 and described second core bar about 22 are oppositely arranged, described second core bar 22 is connected with for driving described second core bar 22 actuator in axial sliding, and described first core bar 21 floats up or down under the effect of described second core bar 22.Described actuator can be cylinder or oil cylinder etc.Actuator is connected to one end of the second core bar 22.The outside of described core bar 2 is arranged with positioning sleeve 4, and when described pipe fitting 3 is placed on described core bar 2, the end of described pipe fitting 3 is resisted against described positioning sleeve 4.
In embody rule, the cross section of described first core bar 21, second core bar 22 can the suitable shape such as semicircular in shape, and the first core bar 21, second core bar 22 is combined to form.
The embodiment of the present invention additionally provides a kind of pipe fitting hole-punching method adopting split type core bar, as shown in Figure 1 to 4, adopt the punching device for pipe fittings of the above-mentioned split type core bar of employing, comprise the following steps: the second core bar 22 moves to first direction, first core bar 21 and the second core bar 22 near and be in relaxed state, pipe fitting 3 is placed on described first core bar 21 and the second core bar 22, second core bar 22 moves to second direction and makes the first core bar 21 by described relaxation structure 20, second core bar 22 away from and be tensioned to the inner side of described pipe fitting 3, the punching on described pipe fitting 3 of described punch 1, described second core bar 22 moves to first direction, first core bar 21 and the second core bar 22 near and be in relaxed state, pipe fitting 3 is extracted out from the first core bar 21 and the second core bar 22.Particularly, the outside of described core bar 2 is arranged with positioning sleeve 4, and when described pipe fitting 3 is placed on described core bar 2, the end of described pipe fitting 3 is resisted against described positioning sleeve 4, can locate in the axial direction to make core bar 2.By the core bar 2 serving as die is made into split type, be divided into core bar (the first core bar 21) and lower core bar (the second core bar 22), first core bar 21 is all processed into the cammed surface with the function that cooperatively interacts with the second core bar 22 in the position that punching is corresponding simultaneously, them are allowed to cooperatively interact in the course of the work, realize core bar 2 can relax as required in the pipe of header or the tensioning (insertion of header and to go out the process of pulling out be relaxed state, be tensioning state during punching press), thus make the mould of being correlated with have higher ram efficiency, and structure is more compact, optimize.
The punching device for pipe fittings of the split type core bar of employing provided by the present invention and method, its core bar serving as die is split type, be divided into the first core bar 21 and the second core bar 22, and first, second core bar 21,22 all has the cammed surface cooperatively interacted.First core bar 21 only moves up and down, and has the trend of down moving under the forcing of spring force (or other reset force) in the vertical direction.Second core bar 22 seesaws (generally by the pushing away of cylinder, draw drive).
As shown in Figure 1, before punching press, second core bar 22 (by cylinder or other driving mechanism) (is illustrated as and turns right) release forward, first core bar 21 then down moves under the effect of spring force (or other reset force), now first, second core bar 21,22 is close to mutually, be in relaxed state, header can be inserted into core bar 2 very like a cork.During punching press, header is inserted in the middle of first, second core bar 21,22, allow its end face top to the end face of positioning sleeve 4 always, as shown in Figure 3, then, start cylinder valve (or other driving mechanism switch), drive the second core bar 22 (to be illustrated as and to turn left) backward and pull, under the effect that the cammed surface of first, second core bar 21,22 cooperatively interacts, overcome spring force (or other reset force), force the first core bar 21 to move upward.Now, on the one hand, header can produce the trend of moving to positioning sleeve 4 under the frictional force effect of the second core bar 22, and its end face is further fitted with the end face of positioning sleeve 4, and the precision of punching is fully guaranteed; On the other hand, because first, second core bar 21,22 is in tensioning state, header propping up tightly, the effect of serving as die can be played, as shown in Figure 3.After punching press completes, start cylinder valve (or other driving mechanism switch), make cylinder (or other driving mechanism) reverse operation, second core bar 22 is released forward, and the first core bar 21 down moves under the effect of spring force (or other reset force), first, second core bar 21,22 is close to again mutually, be returned to relaxed state, namely the state before the punching press shown in Fig. 1 is got back to, now, header can be transferred to very easily from first, second core bar 21,22.In first, second core bar 21,22, the position at cammed surface place can be corresponding with the position of punching, can play the effect of support like this in the position of punching.
The punching device for pipe fittings of the split type core bar of employing provided by the present invention and method, it can make the ram efficiency of related die be greatly improved compared with traditional integrated core pole technology.Because how to fluctuate regardless of the internal diameter size error of header, under the state that first, second core bar 21,22 is lax, operative employee can be inserted in (before punching press) easily header and take out (after punching press) per capita in core bar 2, and process very easily, fast.
Punching course carries out under first, second core bar 21,22 is in tensioning state, and how the internal diameter size error therefore regardless of header fluctuates, and the job stability of related die and punching precision all can be made to be guaranteed.By contrast, adopt traditional monoblock type core bar to carry out punching press, if header internal diameter size exist comparatively big error time, some internal diameter sizes are bigger than normal has header then to there will be relatively large burr or local deformation in punching place, thus precision can not be guaranteed.
And, the punching device for pipe fittings of the split type core bar of employing and method that provide are provided, can make the structure of related die more compact, optimize, the type selecting of cylinder can be chosen cylinder diameter and the less small cylinder of stroke.On the one hand, the stroke of cylinder only needs the distance guaranteeing that the second core bar 22 seesaws, and the distance shorter (as shown in Figure 2) that the second core bar 22 seesaws, by contrast, adopt monoblock type core bar, then need, with the cylinder of larger row journey, the header after punching press is released a quite long segment distance, better transferred to by hand by operating personnel; On the other hand, in the tensioning process of first, second core bar 21,22, cylinder be supplied to the second core bar 22 power only need the spring force (or other reset force) allowing the first core bar 21 overcome up to move, therefore the cylinder diameter of cylinder does not need too large, and adopt monoblock type core bar, cylinder then needs to provide could be released the header after punching press more energetically from core bar 2, so need to select the cylinder of large-diameter just can meet the demands.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement or improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. one kind adopts the punching device for pipe fittings of split type core bar, comprise for the punch of forming hole position with for inserting in the core bar in pipe fitting, it is characterized in that, described core bar comprises the first core bar and the second core bar, is provided with the relaxation structure of the relatively described first core bar radial motion of the second core bar described in when relative described first core bar of described second core bar axle slides axially between described first core bar with described second core bar.
2. the punching device for pipe fittings adopting split type core bar as claimed in claim 1, is characterized in that, described first core bar is or/and the second core bar is connected with for making described first core bar and the second core bar keep the elastic component of pressing close to.
3. the punching device for pipe fittings adopting split type core bar as claimed in claim 1, is characterized in that, described relaxation structure is be arranged at the cammed surface of described first core bar and be arranged at the cammed surface of described second core bar.
4. the punching device for pipe fittings adopting split type core bar as claimed in claim 1, is characterized in that, described relaxation structure is be arranged at the cambered surface of described first core bar and be arranged at the cambered surface of described second core bar.
5. the punching device for pipe fittings adopting split type core bar as claimed in claim 2, it is characterized in that, described elastic component is spring.
6. the punching device for pipe fittings of the split type core bar of the employing according to any one of claim 2 to 5, it is characterized in that, described first core bar and described second core bar are oppositely arranged up and down, described second core bar is connected with for driving described second core bar actuator in axial sliding, and described first core bar floats up or down under the effect of described second core bar.
7. the punching device for pipe fittings adopting split type core bar as claimed in claim 6, it is characterized in that, described actuator is cylinder or oil cylinder.
8. the punching device for pipe fittings of the split type core bar of the employing according to any one of claim 1 to 5, is characterized in that, the cross section semicircular in shape of described first core bar, the second core bar.
9. one kind adopts the pipe fitting hole-punching method of split type core bar, it is characterized in that, adopt the punching device for pipe fittings of the split type core bar of employing according to any one of claim 1 to 8, comprise the following steps: the second core bar moves to first direction, first core bar and the second core bar near and be in relaxed state, pipe fitting is placed on described first core bar and the second core bar, second core bar moves to second direction and makes the first core bar by described relaxation structure, second core bar away from and be tensioned to the inner side of described pipe fitting, the punching on described pipe fitting of described punch, described second core bar moves to first direction, first core bar and the second core bar near and be in relaxed state, pipe fitting is extracted out from the first core bar and the second core bar.
10. the pipe fitting hole-punching method adopting split type core bar as claimed in claim 9, it is characterized in that, the outside of described core bar is arranged with positioning sleeve, and when described pipe fitting is placed on described core bar, the end of described pipe fitting is resisted against described positioning sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410415301.0A CN104307976A (en) | 2014-08-20 | 2014-08-20 | Pipe fitting punching device adopting split type core bar and pipe fitting punching method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410415301.0A CN104307976A (en) | 2014-08-20 | 2014-08-20 | Pipe fitting punching device adopting split type core bar and pipe fitting punching method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104307976A true CN104307976A (en) | 2015-01-28 |
Family
ID=52363365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410415301.0A Pending CN104307976A (en) | 2014-08-20 | 2014-08-20 | Pipe fitting punching device adopting split type core bar and pipe fitting punching method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104307976A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104874670A (en) * | 2015-05-12 | 2015-09-02 | 广州科技职业技术学院 | Tube punching concave mold locating device |
| CN106694689A (en) * | 2017-02-14 | 2017-05-24 | 珠海格力智能装备技术研究院有限公司 | Tube machining device |
| CN106825158A (en) * | 2017-02-14 | 2017-06-13 | 珠海格力智能装备技术研究院有限公司 | Body process equipment |
| CN113458223A (en) * | 2021-06-30 | 2021-10-01 | 东莞市新美洋技术有限公司 | Mandrel component and pipe stamping equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11151696A (en) * | 1997-09-09 | 1999-06-08 | Nisshinbo Ind Inc | Die device for machining pipe material |
| CN101590502A (en) * | 2009-03-25 | 2009-12-02 | 江苏康泰热交换设备工程有限公司 | A kind of processing method of collecting tube of heat exchanger |
| CN102125954A (en) * | 2010-12-31 | 2011-07-20 | 桐庐瀚威健身器材有限公司 | Punching method convenient to discharge |
| CN202105901U (en) * | 2011-01-28 | 2012-01-11 | 旭东机械(昆山)有限公司 | Mechanism for punching core of punched hole |
| CN203380253U (en) * | 2013-07-01 | 2014-01-08 | 上海江森汽车金属零部件有限公司 | Pipe fitting punching device |
-
2014
- 2014-08-20 CN CN201410415301.0A patent/CN104307976A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11151696A (en) * | 1997-09-09 | 1999-06-08 | Nisshinbo Ind Inc | Die device for machining pipe material |
| CN101590502A (en) * | 2009-03-25 | 2009-12-02 | 江苏康泰热交换设备工程有限公司 | A kind of processing method of collecting tube of heat exchanger |
| CN102125954A (en) * | 2010-12-31 | 2011-07-20 | 桐庐瀚威健身器材有限公司 | Punching method convenient to discharge |
| CN202105901U (en) * | 2011-01-28 | 2012-01-11 | 旭东机械(昆山)有限公司 | Mechanism for punching core of punched hole |
| CN203380253U (en) * | 2013-07-01 | 2014-01-08 | 上海江森汽车金属零部件有限公司 | Pipe fitting punching device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104874670A (en) * | 2015-05-12 | 2015-09-02 | 广州科技职业技术学院 | Tube punching concave mold locating device |
| CN106694689A (en) * | 2017-02-14 | 2017-05-24 | 珠海格力智能装备技术研究院有限公司 | Tube machining device |
| CN106825158A (en) * | 2017-02-14 | 2017-06-13 | 珠海格力智能装备技术研究院有限公司 | Body process equipment |
| CN106694689B (en) * | 2017-02-14 | 2018-12-07 | 珠海格力智能装备技术研究院有限公司 | Tube body processing unit (plant) |
| CN113458223A (en) * | 2021-06-30 | 2021-10-01 | 东莞市新美洋技术有限公司 | Mandrel component and pipe stamping equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104307976A (en) | Pipe fitting punching device adopting split type core bar and pipe fitting punching method | |
| US10814376B2 (en) | Mechanism and design for addressing ram droop | |
| JP6250168B2 (en) | Outboard guide bearing assembly, ram assembly and can body making machine | |
| CN204584004U (en) | Floating jib die pipe punching hole mould | |
| CN205949696U (en) | Steel pipe pipe contracting machine | |
| CN207981989U (en) | Perforating press | |
| CN203061731U (en) | Riveting press for tail pedal pipe | |
| CN109731974B (en) | VL-shaped ball cage machining and forming assembly and machining and forming method thereof | |
| CN204988042U (en) | A drilling is inserted and is drawn mechanism for fireworks group basin | |
| CN202192142U (en) | Pipe fitting bulge forming mechanism | |
| CN104942170B (en) | A kind of swollen header structure and its pipe expanding equipment of application | |
| CN203471447U (en) | Unclamping cylinder | |
| CN203887020U (en) | Punching die | |
| CN103990695A (en) | Blanking and bending compound die | |
| CN102641931A (en) | Pipe-fitting groove rolling device | |
| CN204052510U (en) | For the frock of copper pipe indent | |
| CN105964816A (en) | Tube expander | |
| CN211101341U (en) | Small-size mound thick system of prestressing force steel bar | |
| CN104128519A (en) | Pipe rotating and punching device | |
| CN204403143U (en) | Crimping oral area is without the linear bearing with punching outer ring of annealing | |
| CN207382069U (en) | The field frame assembly being easily installed | |
| CN206343539U (en) | A kind of floating type punch head guiding structure | |
| CN107716555B (en) | Automatic circulation equipment and method for core rod of perforating machine | |
| CN207013662U (en) | A kind of coiling machine | |
| CN204770259U (en) | First structure expands and expand tube equipment of using thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150128 |
|
| RJ01 | Rejection of invention patent application after publication |