CN106734553B - A kind of punch forming tooling in helical teeth hole - Google Patents
A kind of punch forming tooling in helical teeth hole Download PDFInfo
- Publication number
- CN106734553B CN106734553B CN201611229990.1A CN201611229990A CN106734553B CN 106734553 B CN106734553 B CN 106734553B CN 201611229990 A CN201611229990 A CN 201611229990A CN 106734553 B CN106734553 B CN 106734553B
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- China
- Prior art keywords
- groove
- diameter
- workpiece
- helical teeth
- less
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- 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.)
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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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/02—Die constructions enabling assembly of the die parts in different ways
Abstract
The invention discloses a kind of punch forming toolings in helical teeth hole, including fixed sleeve part, the pierce punch and workpiece to be processed of end belt wheel odontoid, workpiece end surface is provided with preset holes, the end of pierce punch is front and back isodiametric class column structure, notch is provided in fixed sleeve part, it is provided in fixed sleeve part perforative by notch center, for pierce punch by channel, notch includes truncated cone-shaped structure, the first groove being overlapped up and down, second groove, the basal diameter of second groove is more than the outer diameter of workpiece one end, the top surface diameter of second groove is less than the outer diameter of workpiece one end and the basal diameter equal to the first groove, the top surface diameter of first groove is less than basal diameter, angle between the inclined-plane and radial direction of first groove is more than the angle between the inclined-plane and radial direction of the second groove.It is enabled access diameter suitable for reading, lower relative aperture elementary errors helical teeth hole.
Description
Technical field
The present invention relates to a kind of punch forming toolings, more particularly, to a kind of punch forming tooling in helical teeth hole.
Background technology
Now punch forming helical teeth hole is carried out to workpiece, as shown in Figure 1, the gear teeth are provided on the side wall first of helical teeth hole, and
The gear teeth upper end bore in helical teeth hole is slightly larger than lower end bore.But in actual processing engineering, even if directly being beaten using diameter is constant
Hole tool carries out punching press along radial direction to workpiece.If processing the standard that obtained helical teeth hole upper end bore meets processing request
Value, then lower end bore is then less than standard value；If lower end bore meets the standard value of processing request, then upper end bore is then more than mark
Quasi- value.Difference between the upper end bore and lower end bore in the helical teeth hole of the workpiece finally obtained is still excessive.
In this case, the helical teeth for meeting processing request can not be obtained by way of replacing punching tooling
Hole.It is existing in view of the above-mentioned problems, a kind of punch forming tooling in helical teeth hole is arranged, it is enabled access diameter suitable for reading, lower relative aperture elementary errors,
Meet the helical teeth hole of processing request.
Invention content
Technical problem to be solved by the invention is to provide a kind of punch forming tooling in helical teeth hole, enable to access suitable for reading
The helical teeth hole of diameter, lower relative aperture elementary errors.
Technical solution is used by the present invention solves above-mentioned technical problem：A kind of punch forming tooling in helical teeth hole, packet
Fixed sleeve part, the pierce punch of end belt wheel odontoid and workpiece to be processed are included, the workpiece end surface is provided with
The end of preset holes, the pierce punch is front and back isodiametric class column structure, and slot is provided in the fixed sleeve part
Mouthful, be provided in the fixed sleeve part it is perforative by notch center, for pierce punch by channel, the notch includes
The basal diameter of truncated cone-shaped structure, the first groove being overlapped up and down, the second groove, second groove is more than workpiece one end
The top surface diameter of outer diameter, second groove is less than the outer diameter of workpiece one end and the basal diameter equal to the first groove, described
The top surface diameter of the first groove be less than basal diameter, angle between the inclined-plane and radial direction of first groove is more than second
Angle between the inclined-plane and radial direction of groove.
The further preferred embodiment of the present invention：The bore of the preset holes is less than the internal diameter of the pierce punch, institute
The bottom surface for the preset holes stated is provided with the counterbore that bore is less than preset holes.Be arranged preset holes so that pierce punch push after by
Resistance it is smaller, can be smoothly to the side wall punch forming of preset holes.Counterbore, present invention meeting during punch forming are set
There are extra particle, particle to drop into counterbore, does not influence the molding in helical teeth hole.And during punch forming, pierce punch
End can enter counterbore, not influence the molding in helical teeth hole.
The further preferred embodiment of the present invention：The half of the sum of the second groove top surface diameter and basal diameter
Outer diameter of the value less than workpiece one end.The bottom surface of second groove is more than the outer diameter of workpiece one end, it is ensured that workpiece from the beginning can be into
Enter the second groove.And simultaneously, the bore after entering along the second groove will be gradually reduced, and be collected to be played to the end of workpiece
Effect.So that the bore in helical teeth hole after molding meets process requirements.
The further preferred embodiment of the present invention：The depth of the notch is less than the end that pierce punch carries tooth profiles
Length.The depth of notch is to wrap the length of workpiece end, in actual application, does not need to will to need to process
Part all wraps up, but selects to wrap up its end.
The further preferred embodiment of the present invention：The end bottom surface of the pierce punch is provided with sharp portion and transition part,
The sharp portion is located in the middle part of the bottom surface of transition part, and sharp portion is to the side wall arc-shaped transition of transition part, the transition part
Diameter be less than pierce punch one end diameter and the two chamfered transition.Transition part is set during punch forming, transition part energy
The preset holes into workpiece of enough slight drags first, convenient for being positioned in punching course.
Compared with the prior art, the advantages of the present invention are as follows before carrying out helical teeth hole punch forming to workpiece to be processed,
It will be sleeved on workpiece surface outside fixed sleeve part pushing.The outer diameter of former workpiece surface is consistent, after external member to be fixed pushes, work end
The side wall in portion is extruded so that the side wall of workpiece end is inwardly compressed and outer surface is mutually fitted with the notch arrangement in fixed sleeve part
It answers.Use workpiece end first by the second smaller groove of gradient first, outer surface of workpiece will be along the oblique of the second groove
Inward-facing propulsion.The first groove is entered back into, the gradient of the first groove will be greater than the gradient of the second groove, play determining to the end
Position effect.The setting fixed sleeve part of the present invention so that the endoporus of workpiece becomes smaller, so that the dimension in the helical teeth hole that processing obtains
Meet process requirements.And in practical application, it is also necessary to which, note that the gradient of the second groove cannot be excessive, cannot be more than processing needs
The upper bore in the helical teeth hole asked, lower relative aperture elementary errors.
Description of the drawings
Fig. 1 is undressed preceding structural schematic diagram；
Fig. 2 is the structural schematic diagram in process；
Fig. 3 is the partial structural diagram at notch.
Specific implementation mode
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
As shown in Figure 1 to Figure 3：A kind of punch forming tooling in helical teeth hole, including fixed sleeve part 1, end belt wheel odontoid
Pierce punch 2 and workpiece 3 to be processed, 3 end surface of workpiece be provided with preset holes 4, the end of pierce punch 2 is front and back
Isodiametric class column structure is provided with notch 5 in fixed sleeve part 1, be provided in fixed sleeve part 1 it is perforative by 5 center of notch,
For pierce punch 2 by channel, notch 5 include truncated cone-shaped structure, the first groove 6 being overlapped up and down, the second groove 7, second
The basal diameter of groove 7 is more than the outer diameter of 3 one end of workpiece, and the top surface diameter of the second groove 7 is less than the outer diameter of 3 one end of workpiece and waits
It is less than basal diameter, inclined-plane and the radial direction of the first groove 6 in the top surface diameter of the basal diameter of the first groove 6, the first groove 6
Between angle be more than the second groove 7 inclined-plane and radial direction between angle.
The bore of preset holes 4 is less than the internal diameter of pierce punch 2, and the bottom surface of preset holes 4 is provided with bore less than preset holes 4
Counterbore.The half value of the sum of second groove, 7 top surface diameter and basal diameter is less than the outer diameter of 3 one end of workpiece.Second groove 7
Top surface notch 5 depth be less than pierce punch 2 with tooth profiles end length.
The end bottom surface of pierce punch 2 is provided with sharp portion 8 and transition part 9, and sharp portion 8 is located in the bottom surface of transition part 9
Portion, and sharp portion 8, to the side wall arc-shaped transition of transition part 9, the diameter of transition part 9 is less than 2 one end diameter of pierce punch and the two
Chamfered transition.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (5)
1. a kind of punch forming tooling in helical teeth hole, it is characterised in that the punched hole punching including fixed sleeve part, end belt wheel odontoid
Head and workpiece to be processed, the workpiece end surface are provided with preset holes, and the end of the pierce punch is front and back
Isodiametric class column structure is provided with notch in the fixed sleeve part, is provided with by notch in the fixed sleeve part
The heart is perforative, for pierce punch by channel, the notch includes truncated cone-shaped structure, the first groove for being overlapped up and down,
Two grooves, the basal diameter of second groove are more than the outer diameter of workpiece one end, and the top surface diameter of second groove is small
The top surface diameter of outer diameter in workpiece one end and the basal diameter equal to the first groove, first groove is straight less than bottom surface
Diameter, the angle between the inclined-plane and radial direction of first groove are more than the angle between the inclined-plane and radial direction of the second groove.
2. a kind of punch forming tooling in helical teeth hole according to claim 1, it is characterised in that the mouth of the preset holes
Diameter is less than the internal diameter of the pierce punch, and the bottom surface of the preset holes is provided with the counterbore that bore is less than preset holes.
3. a kind of punch forming tooling in helical teeth hole according to claim 1, it is characterised in that the second groove top
The half value of the sum of face diameter and basal diameter is less than the outer diameter of workpiece one end.
4. a kind of punch forming tooling in helical teeth hole according to claim 1, it is characterised in that the depth of the notch
Less than the length of end of the pierce punch with tooth profiles.
5. a kind of punch forming tooling in helical teeth hole according to claim 1, it is characterised in that the pierce punch
End bottom surface is provided with sharp portion and transition part, and the sharp portion is located in the middle part of the bottom surface of transition part, and sharp portion is to transition
The diameter of the side wall arc-shaped transition in portion, the transition part is less than pierce punch one end diameter and the two chamfered transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611229990.1A CN106734553B (en) | 2016-12-27 | 2016-12-27 | A kind of punch forming tooling in helical teeth hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611229990.1A CN106734553B (en) | 2016-12-27 | 2016-12-27 | A kind of punch forming tooling in helical teeth hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106734553A CN106734553A (en) | 2017-05-31 |
| CN106734553B true CN106734553B (en) | 2018-07-20 |
Family
ID=58922894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611229990.1A Active CN106734553B (en) | 2016-12-27 | 2016-12-27 | A kind of punch forming tooling in helical teeth hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106734553B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10296691A (en) * | 1997-04-30 | 1998-11-10 | Exedy Corp | Plate hole forming method, plate and punch |
| JP2003305521A (en) * | 2002-04-12 | 2003-10-28 | Toyota Auto Body Co Ltd | Press forming device |
| CN2635238Y (en) * | 2003-07-10 | 2004-08-25 | 白新刚 | Gear wheel blank reaming forging die |
| CN202715706U (en) * | 2012-04-27 | 2013-02-06 | 成都飞机工业（集团）有限责任公司 | Adjustable forming tool for kidney-shaped hole |
| CN206325999U (en) * | 2016-12-27 | 2017-07-14 | 山中合金（宁波）有限公司 | A kind of punch forming frock in helical teeth hole |
-
2016
- 2016-12-27 CN CN201611229990.1A patent/CN106734553B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10296691A (en) * | 1997-04-30 | 1998-11-10 | Exedy Corp | Plate hole forming method, plate and punch |
| JP2003305521A (en) * | 2002-04-12 | 2003-10-28 | Toyota Auto Body Co Ltd | Press forming device |
| CN2635238Y (en) * | 2003-07-10 | 2004-08-25 | 白新刚 | Gear wheel blank reaming forging die |
| CN202715706U (en) * | 2012-04-27 | 2013-02-06 | 成都飞机工业（集团）有限责任公司 | Adjustable forming tool for kidney-shaped hole |
| CN206325999U (en) * | 2016-12-27 | 2017-07-14 | 山中合金（宁波）有限公司 | A kind of punch forming frock in helical teeth hole |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106734553A (en) | 2017-05-31 |
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