CN214557094U - Omnidirectional limiting device for blank in VGR rack rotary forging process - Google Patents
Omnidirectional limiting device for blank in VGR rack rotary forging process Download PDFInfo
- Publication number
- CN214557094U CN214557094U CN202022767632.4U CN202022767632U CN214557094U CN 214557094 U CN214557094 U CN 214557094U CN 202022767632 U CN202022767632 U CN 202022767632U CN 214557094 U CN214557094 U CN 214557094U
- Authority
- CN
- China
- Prior art keywords
- blank
- prefabricated blank
- lower die
- curved surface
- die
- 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.)
- Active
Links
Images
Abstract
The utility model discloses a VGR rack pendulum rolls process blank omnidirectional stop device, it includes: the device comprises a prefabricated blank positioned in the middle of an upper die and a lower die, a lower die plate arranged below the lower die, lower die ejector rods penetrating through the lower die and the lower die plate, a lower sliding block positioned below the lower die plate, and lower die ejector rod cushion blocks arranged below the lower die ejector rods and abutting against a machine ejector rod penetrating through the lower sliding block, wherein the prefabricated blank is radially provided with a matched curved surface, the matched curved surface is provided with a groove, the lower die curved surface arranged on the lower die is matched with the matched curved surface on the prefabricated blank in shape, and the radial directions of the prefabricated blank are provided with side dies in pairs.
Description
Technical Field
The utility model relates to an auto-parts production technical field specifically is a VGR rack pendulum rolls process blank omnidirectional stop device.
Background
The automobile steering system is a mechanism for changing or maintaining the running direction of an automobile, and ensures that the automobile can be steered and run according to the intention of a driver. Steering gear assemblies are an important component of automotive steering systems, and common steering gears include rack and pinion, worm crank pin, and recirculating ball. The rack and pinion steering gear is simple and compact in structure and high in transmission efficiency, and is used in automobiles more. The steering gear has high use frequency and complex working condition in the automobile running process, and is easy to generate abnormal sound. The abnormal sound generated in the process of meshing the steering gear and the steering rack is particularly obvious, and when the vibration frequency of the steering gear meshed with the steering rack is close to or equal to the self frequency of the steering gear assembly, the resonance is generated, and the abnormal sound is generated. The comfort of the user is influenced, and the quality of the whole vehicle is reduced.
The traditional rack of the automobile steering machine has constant transmission ratio, and the tooth-to-tooth distances are called CGR racks, and the traditional rack is generally manufactured by cutting machining methods such as tooth broaching or tooth milling. With the development of automobile technology, a variable transmission ratio steering engine is widely used abroad and is gradually applied domestically, and the pitch of a rack of the variable transmission ratio steering engine changes according to a transmission ratio curve, and the variable transmission ratio steering engine is called a VGR rack. At present, a variable pitch rack completely depends on import, in the domestic VGR rack process, blanks cannot be positioned in the process of pendulum rolling, so that the technical development of the pendulum rolling process is slow, and domestic racks of the existing steering engine are all CGR products and cannot meet the requirement of the variable transmission ratio of the steering engine.
In the process of developing a VGR rack rotary forging process, if a proper positioning structure of a blank and a die is not provided, the blank can swing along with a movable die, so that the problems that a tooth part cannot be smoothly filled, the tooth top is distorted, the tooth profile precision is low and the like are caused, and a qualified VGR rack product is difficult to obtain.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to solve the not enough of prior art, the utility model provides a VGR rack pendulum rolls process blank omnidirectional stop device, the device can not swing along with the mould through using this blank when the pendulum rolls VGR profile of tooth, and the device improves product profile of tooth precision, stability and production efficiency under the prerequisite of make full use of material, assurance product mechanical properties.
The technical scheme is as follows: in order to realize above mesh, a VGR rack pendulum rolls all-directional stop device of process blank, it includes: the device comprises an upper die, a lower die, a prefabricated blank, a lower die plate, a lower die ejector rod, a lower sliding block, a lower die ejector rod cushion block and a lower die ejector rod cushion block, wherein the lower die is positioned below the upper die;
the radial direction of prefabricated blank set up the side form in pairs, the one end of side form links to each other with the transfer line, the protruding card that the side form other end was equipped with is gone into the recess on the cooperation curved surface and is realized the fixed to prefabricated blank radial position, when needs carry out radial fixed to prefabricated blank, PLC circuit control transfer line stretches out, promote through the transfer line and move rather than the side form that links to each other and make protruding card go into the recess on the prefabricated blank, the radial positioning of prefabricated blank has been realized, when the pendulum rolls the process and finishes, when needing to take out the product, PLC circuit control transfer line resets and can make arch and recess separation.
The axial direction of the prefabricated blank is provided with a positioning cushion block which is fixed at the end part of the lower die, one end of the prefabricated blank is abutted against the positioning cushion block, the other end of the prefabricated blank is abutted against or separated from a movable cushion block to realize the fixation or separation of the axial position of the prefabricated blank, when the prefabricated blank needs to be axially fixed, the positioning cushion block is fixed with the lower die, a PLC circuit controls a transmission rod to extend out, the movable cushion block connected with the transmission rod is abutted against the end part of the prefabricated blank to realize the axial positioning of the prefabricated blank, when the pendulum grinding process is finished and a product needs to be taken out, the PLC circuit controls the transmission rod to reset, the movable cushion block is separated from the end part of the prefabricated blank, and the product can be ejected out through an ejector rod.
As a further preferred aspect of the present invention, the groove on the mating curved surface and the protrusion on the side mold are connected in a transition fit manner.
As a further preference of the present invention, the grooves located on both sides of the tooth surface are triangular grooves, square grooves, fan-shaped grooves, turn-surface grooves or a combination thereof.
As a further preference of the present invention, the ratio of the width of the groove to the diameter of the prefabricated blank is 1: 8-1: 4, the ratio of the depth of the groove to the diameter of the prefabricated blank is 1: 25-1: 14, the connection of the prefabricated blank placed into the lower die is more stable and reliable through the proportion, and the blank cannot swing along with the die when the blank is subjected to swing forging of the tooth shape of the VGR.
As a further preferred feature of the present invention, the side form is fixed to the transmission rod by a screw connection.
As a further preferred aspect of the present invention, the screw thread connection is a screw which is uniformly installed on the side mold and the transmission rod.
As a further preferred aspect of the present invention, the upper die is provided with a tooth profile corresponding to the tooth profile of VGR.
As the utility model discloses a further preferred, hydraulic control system, pneumatic control system or mechanical transmission system go up the mould, and the lower sliding block links to each other with the PLC circuit respectively.
Has the advantages that: a VGR rack pendulum rolls process blank omnidirectional stop device, the device prevents the product along with the mould swing through radial and axial fixed in VGR rack forming process, can improve product profile of tooth precision, stability and production efficiency under the prerequisite of make full use of material, assurance product mechanical properties through using this fixed method.
Drawings
FIG. 1 is a schematic view of a preform;
FIG. 2 is an enlarged partial cross-sectional view of a preform;
FIG. 3 is a front view of the side mold;
FIG. 4 is a left side view of the side mold;
FIG. 5 is a front view of the working state before rotary forging;
FIG. 6 is a left side view of the working state after the rotary forging;
fig. 7 is a schematic structural view of the groove and the protrusion.
Detailed Description
The invention will be further elucidated with reference to the drawings and the specific embodiments.
As shown in the attached drawings, the utility model discloses a VGR rack pendulum rolls process blank positioner, it includes: the method comprises the following steps of prefabricating a blank 1, a matching curved surface 11, a groove 12, an upper die 10, a lower die 20, a lower die curved surface 21, a lower die plate 30, a lower die ejector rod 40, a lower die ejector rod cushion block 50, a positioning cushion block 60, a movable cushion block 70, a lower slide block 80, a machine bench ejector rod 90, a side die 100, a protrusion 101 and a threaded hole 102;
the prefabricated blank 1 is positioned between the upper die 10 and the lower die 20, a matching curved surface 11 is radially arranged on the prefabricated blank 1, a groove 12 is formed in the matching curved surface 11, a lower die curved surface 21 formed on the lower die 20 is matched with the matching curved surface 11 on the prefabricated blank 1 in shape, the side dies 100 are arranged in pairs in the radial direction of the prefabricated blank 1, the side dies and the transmission rod are fixed in threaded holes 102 at one end of the side dies 100 through screws, and a bulge 101 formed at the other end of the side dies 100 is clamped into the groove 12 on the matching curved surface 11 to fix the radial position of the prefabricated blank 1; a positioning cushion block 60 arranged in the axial direction of the prefabricated blank 1 is fixed at the end part of the lower die 20, one end of the prefabricated blank 1 is abutted against the positioning cushion block 60, and the other end of the prefabricated blank 1 is abutted against or separated from a movable cushion block 70 to realize the fixation or separation of the axial position of the prefabricated blank 1;
the lower die plate 30 is installed below the lower die 20, the lower die ejector rod 40 penetrates through the lower die 20 and the lower die plate 30, the lower sliding block 80 is located below the lower die plate 30, the lower die ejector rod cushion block 50 is installed below the lower die ejector rod 40 and abuts against a machine table ejector rod 90 penetrating through the lower sliding block 80, the lower die 20 is fixedly provided with a positioning cushion block 60, and one end of the prefabricated blank 1 abuts against the positioning cushion block 60.
Example 1
Step one, prefabricating a blank
Obtaining a prefabricated blank 1 by forging extrusion or milling;
step two, sand blasting
After performing sand blasting on the prefabricated blank 1, performing sand blasting on the prefabricated blank 1 by using a sand blasting machine to remove oxide skin and attachments on the surface of the bar;
step three, involucra treatment
Performing a film treatment on the prefabricated blank 1 after the sand blasting treatment, wherein the film treatment is a treatment process of immersing the prefabricated blank 1 after the sand blasting treatment into phosphating solution for 30min and depositing a layer of water-insoluble crystalline phosphate conversion film on the surface of the prefabricated blank 1;
step four, rotary forging
Placing the precast blank 1 after the skin membrane treatment into a die cavity of a lower die 20, attaching a lower die curved surface 21 to a matched curved surface 11, taking a positioning cushion block 60 as a reference surface and abutting against the reference surface at one end of the precast blank 1, and moving a movable cushion block 70 connected with a hydraulic control system to the other end of the precast blank 1 and abutting against the other end of the precast blank after the hydraulic control system receives a signal sent by a PLC circuit by the transmission rod connected with the hydraulic control system to realize the fixation of the axial position of the precast blank 1;
the transmission rod connected with the hydraulic control system starts to push the side die 100 connected with the transmission rod to move towards the direction of the prefabricated blank 1 respectively after the PLC circuit sends a signal until the triangular protrusion 101 arranged on the side die 100 is clamped into the triangular groove 12 on the matching curved surface 11, so that the side die 100 fixes the radial position of the prefabricated blank 1, and the ratio of the width of the triangular groove 12 to the diameter of the prefabricated blank 1 is 1: 8, the ratio of the depth of the triangular groove 12 to the diameter of the prefabricated blank 1 is 1: 25;
at the moment, after the transmission rod moves to a limited position, the PLC circuit sends a signal to the lower sliding block 80, the lower sliding block 80 drives the lower die 20 to move upwards, the upper die 10 starts to swing after receiving the signal sent by the PLC circuit until the upper die 10 contacts the prefabricated blank 1, and the upper die 10 starts to swing and roll to form, and is provided with a tooth form corresponding to the tooth form of VGR;
after the upward travel of the lower sliding block 80 reaches the height of a set value, the rotary forging forming is stopped, and the surface of the prefabricated blank 1 is subjected to rotary forging to form the needed VGR tooth form, namely a finished product;
step five, taking out
After the swing mill is stopped, the PLC circuit sends a signal to the hydraulic control system, the control transmission rod drives the movable cushion block 70 to reset through the transmission rod after receiving the signal of the PLC circuit, the movable cushion block 70 is separated from a finished product, and the transmission rod connected with the side mold 100 resets to realize the separation of the triangular protrusion 101 and the triangular groove 12;
after the transmission rod is reset to the limited position, the lower slide block 80 drives the lower die 20 to move downwards, and the machine bench ejector rod 90 drives the lower die ejector rod cushion block 50 and the lower die ejector rod 40 to move towards the upper die 10 to eject the finished product.
Example 2
Step one, prefabricating a blank
Obtaining a prefabricated blank 1 by forging extrusion or milling;
step two, sand blasting
After performing sand blasting on the prefabricated blank 1, performing sand blasting on the prefabricated blank 1 by using a sand blasting machine to remove oxide skin and attachments on the surface of the bar;
step three, involucra treatment
Performing a film treatment on the prefabricated blank 1 after the sand blasting treatment, wherein the film treatment is a treatment process of immersing the prefabricated blank 1 after the sand blasting treatment into phosphating solution for 60min and depositing a layer of water-insoluble crystalline phosphate conversion film on the surface of the prefabricated blank 1;
step four, rotary forging
Placing the precast blank 1 after the skin membrane treatment into a die cavity of a lower die 20, attaching a lower die curved surface 21 to a matched curved surface 11, taking a positioning cushion block 60 as a reference surface and abutting against the reference surface at one end of the precast blank 1, and after a transmission rod connected with a pneumatic control system receives a signal sent by a PLC (programmable logic controller) circuit, moving a movable cushion block 70 connected with the transmission rod to the other end of the precast blank 1 and abutting against the other end of the precast blank 1 to realize the fixation of the axial position of the precast blank 1;
the transmission rod connected with the pneumatic control system starts to push the side die 100 connected with the transmission rod to move towards the direction of the prefabricated blank 1 respectively after the PLC circuit sends a signal until the triangular protrusion 101 arranged on the side die 100 is clamped into the triangular groove 12 on the matching curved surface 11, so that the side die 100 fixes the radial position of the prefabricated blank 1, and the ratio of the width of the triangular groove 12 to the diameter of the prefabricated blank 1 is 1: 4, the ratio of the depth of the triangular groove 12 to the diameter of the preform 1) is 1: 14;
at the moment, after the transmission rod moves to a limited position, the PLC circuit sends a signal to the lower sliding block 80, the lower sliding block 80 drives the lower die 20 to move upwards, the upper die 10 starts to swing after receiving the signal sent by the PLC circuit until the upper die 10 contacts the prefabricated blank 1, and the upper die 10 starts to swing and roll to form, and is provided with a tooth form corresponding to the tooth form of VGR;
after the upward travel of the lower sliding block 80 reaches the height of a set value, the rotary forging forming is stopped, and the surface of the prefabricated blank 1 is subjected to rotary forging to form the needed VGR tooth form, namely a finished product;
step five, taking out
After the swing mill is stopped, the PLC circuit sends a signal to a pneumatic control system, a control transmission rod drives the movable cushion block 70 to reset through the transmission rod after receiving the signal of the PLC circuit, the movable cushion block 70 is separated from a finished product, and the transmission rod connected with the side mold 100 resets to realize the separation of the triangular protrusion 101 and the triangular groove 12;
after the transmission rod is reset to the limited position, the lower slide block 80 drives the lower die 20 to move downwards, and the machine bench ejector rod 90 drives the lower die ejector rod cushion block 50 and the lower die ejector rod 40 to move towards the upper die 10 to eject the finished product.
Example 3
Step one, prefabricating a blank
Obtaining a prefabricated blank 1 by forging extrusion or milling;
step two, sand blasting
After performing sand blasting on the prefabricated blank 1, performing sand blasting on the prefabricated blank 1 by using a sand blasting machine to remove oxide skin and attachments on the surface of the bar;
step three, involucra treatment
Performing a film treatment on the prefabricated blank 1 after the sand blasting treatment, wherein the film treatment is a treatment process of immersing the prefabricated blank 1 after the sand blasting treatment into phosphating solution for 30min and depositing a layer of water-insoluble crystalline phosphate conversion film on the surface of the prefabricated blank 1;
step four, rotary forging
Placing the precast blank 1 after the skin membrane treatment into a die cavity of a lower die 20, attaching a lower die curved surface 21 to a matched curved surface 11, taking a positioning cushion block 60 as a reference surface and abutting against the reference surface at one end of the precast blank 1, and moving a movable cushion block 70 connected with a mechanical transmission system to the other end of the precast blank 1 and abutting against the other end of the precast blank after the mechanical transmission system receives a signal sent by a PLC circuit by the transmission rod connected with the mechanical transmission system to realize the fixation of the axial position of the precast blank 1;
the transmission rod connected with the mechanical transmission system starts to push the side die 100 connected with the transmission rod to move towards the direction of the prefabricated blank 1 respectively after the PLC circuit sends a signal until the square bulge 101 arranged on the side die 100 is clamped into the square groove 12 on the matching curved surface 11, so that the side die 100 fixes the radial position of the prefabricated blank 1, and the ratio of the width of the square groove 12 to the diameter of the prefabricated blank 1 is 1: 8, the ratio of the depth of the square groove 12 to the diameter of the prefabricated blank 1 is 1: 25;
at the moment, after the transmission rod moves to a limited position, the PLC circuit sends a signal to the lower sliding block 80, the lower sliding block 80 drives the lower die 20 to move upwards, the upper die 10 starts to swing after receiving the signal sent by the PLC circuit until the upper die 10 contacts the prefabricated blank 1, and the upper die 10 starts to swing and roll to form, and is provided with a tooth form corresponding to the tooth form of VGR;
after the upward travel of the lower sliding block 80 reaches the height of a set value, the rotary forging forming is stopped, and the surface of the prefabricated blank 1 is subjected to rotary forging to form the needed VGR tooth form, namely a finished product;
step five, taking out
After the swing mill is stopped, the PLC circuit sends a signal to the mechanical transmission system, the transmission rod is controlled to drive the movable cushion block 70 to reset through the transmission rod after receiving the signal of the PLC circuit, the movable cushion block 70 is separated from a finished product, and the transmission rod connected with the side mold 100 resets to realize the separation of the square protrusion 101 and the square groove 12;
after the transmission rod is reset to the limited position, the lower slide block 80 drives the lower die 20 to move downwards, and the machine bench ejector rod 90 drives the lower die ejector rod cushion block 50 and the lower die ejector rod 40 to move towards the upper die 10 to eject the finished product.
Example 4
Step one, prefabricating a blank
Obtaining a prefabricated blank 1 by forging extrusion or milling;
step two, sand blasting
After performing sand blasting on the prefabricated blank 1, performing sand blasting on the prefabricated blank 1 by using a sand blasting machine to remove oxide skin and attachments on the surface of the bar;
step three, involucra treatment
Performing a film treatment on the prefabricated blank 1 after the sand blasting treatment, wherein the film treatment is a treatment process of immersing the prefabricated blank 1 after the sand blasting treatment into phosphating solution for 60min and depositing a layer of water-insoluble crystalline phosphate conversion film on the surface of the prefabricated blank 1;
step four, rotary forging
Placing the precast blank 1 after the skin membrane treatment into a die cavity of a lower die 20, attaching a lower die curved surface 21 to a matched curved surface 11, taking a positioning cushion block 60 as a reference surface and abutting against the reference surface at one end of the precast blank 1, and moving a movable cushion block 70 connected with a hydraulic control system to the other end of the precast blank 1 and abutting against the other end of the precast blank after the hydraulic control system receives a signal sent by a PLC circuit by the transmission rod connected with the hydraulic control system to realize the fixation of the axial position of the precast blank 1;
the transmission rod connected with the hydraulic control system starts to push the side die 100 connected with the transmission rod to move towards the direction of the prefabricated blank 1 respectively after the PLC circuit sends a signal until the square bulge 101 arranged on the side die 100 is clamped into the square groove 12 on the matched curved surface 11, so that the side die 100 fixes the radial position of the prefabricated blank 1, and the width of the square groove 12 and the diameter of the prefabricated blank 1 are in a ratio of 1: 4, the ratio of the depth of the square groove 12 to the diameter of the prefabricated blank 1 is 1: 14;
at the moment, after the transmission rod moves to a limited position, the PLC circuit sends a signal to the lower sliding block 80, the lower sliding block 80 drives the lower die 20 to move upwards, the upper die 10 starts to swing after receiving the signal sent by the PLC circuit until the upper die 10 contacts the prefabricated blank 1, and the upper die 10 starts to swing and roll to form, and is provided with a tooth form corresponding to the tooth form of VGR;
after the upward travel of the lower sliding block 80 reaches the height of a set value, the rotary forging forming is stopped, and the surface of the prefabricated blank 1 is subjected to rotary forging to form the needed VGR tooth form, namely a finished product;
step five, taking out
After the swing mill is stopped, the PLC circuit sends a signal to the hydraulic control system, the control transmission rod drives the movable cushion block 70 to reset through the transmission rod after receiving the signal of the PLC circuit, the movable cushion block 70 is separated from a finished product, and the transmission rod connected with the side mold 100 resets to realize the separation of the square protrusion 101 and the square groove 12;
after the transmission rod is reset to the limited position, the lower slide block 80 drives the lower die 20 to move downwards, and the machine bench ejector rod 90 drives the lower die ejector rod cushion block 50 and the lower die ejector rod 40 to move towards the upper die 10 to eject the finished product.
The above embodiments are only for illustrating the technical conception and the features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All changes and modifications that come within the spirit of the invention are desired to be protected.
Claims (8)
1. The utility model provides a VGR rack pendulum rolls all-directional stop device of process blank, it includes: go up mould (10), be located lower mould (20) of last mould (10) below, be located prefabricated blank (1) of department in the middle of last mould (10) and lower mould (20), install lower bolster (30) in lower mould (20) below, wear to establish lower mould ejector pin (40) on lower mould (20) and lower bolster (30), be located lower slider (80) of lower bolster (30) below, install lower mould ejector pin (40) below and with wear to establish lower mould ejector pin cushion (50) that board ejector pin (90) on lower slider (80) offset, its characterized in that: a matching curved surface (11) is radially arranged on the prefabricated blank (1), a groove (12) is arranged on the matching curved surface (11), and a lower die curved surface (21) arranged on the lower die (20) is matched with the matching curved surface (11) on the prefabricated blank (1) in shape;
the radial direction of the prefabricated blank (1) is provided with side molds (100) in pairs, one end of each side mold (100) is connected with the transmission rod, and a bulge (101) arranged at the other end of each side mold (100) is clamped into a groove (12) on the corresponding curved surface (11) to fix the radial position of the prefabricated blank (1);
a positioning cushion block (60) arranged in the axial direction of the prefabricated blank (1) is fixed at the end part of the lower die (20), one end of the prefabricated blank (1) is abutted against the positioning cushion block (60), the other end of the prefabricated blank (1) is abutted against or separated from a movable cushion block (70) to fix or separate the axial position of the prefabricated blank (1), and the movable cushion block (70) is connected with a transmission rod;
the transmission rod is in control connection with a hydraulic control system, a pneumatic control system or a mechanical transmission system which provides power.
2. The omnidirectional limiting device for the blank in the VGR rack swing forging process according to claim 1, wherein: the groove (12) on the matching curved surface (11) is in transition matching connection with the bulge (101) on the side die (100).
3. The omnidirectional limiting device for the blank in the VGR rack swing forging process according to claim 1, wherein: the grooves (12) on both sides of the tooth surface (13) are triangular grooves, square grooves, fan-shaped grooves, revolution surface grooves or a combination thereof.
4. The omnidirectional limiting device for the blank in the VGR rack pendulum milling process of claim 3, wherein: the ratio of the width of the groove (12) to the diameter of the prefabricated blank (1) is 1: 8-1: 4, the ratio of the depth of the groove (12) to the diameter of the precast blank (1) is 1: 25-1: 14.
5. the omnidirectional limiting device for the blank in the VGR rack swing forging process according to claim 1, wherein: the side die (100) and the transmission rod are fixed together in a threaded connection mode.
6. The omnidirectional limiting device for the blank in the VGR rack swing forging process according to claim 5, wherein: the threaded connection is screws uniformly arranged on the side die (100) and the transmission rod.
7. The omnidirectional limiting device for the blank in the VGR rack swing forging process according to claim 1, wherein: the upper die (10) is provided with a tooth form corresponding to the tooth form of VGR.
8. The omnidirectional limiting device for the blank in the VGR rack swing forging process according to claim 1, wherein: the hydraulic control system, the pneumatic control system or the mechanical transmission system, the upper die (10) and the lower slider (80) are respectively connected with the PLC circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022767632.4U CN214557094U (en) | 2020-11-26 | 2020-11-26 | Omnidirectional limiting device for blank in VGR rack rotary forging process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022767632.4U CN214557094U (en) | 2020-11-26 | 2020-11-26 | Omnidirectional limiting device for blank in VGR rack rotary forging process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214557094U true CN214557094U (en) | 2021-11-02 |
Family
ID=78324872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022767632.4U Active CN214557094U (en) | 2020-11-26 | 2020-11-26 | Omnidirectional limiting device for blank in VGR rack rotary forging process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214557094U (en) |
-
2020
- 2020-11-26 CN CN202022767632.4U patent/CN214557094U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102581208A (en) | Method for precisely carrying out hot forging on driven spiral bevel gear of automobile rear axle | |
| CN103433345A (en) | Special numerical-control spinning forming machine for hub parts of engineering vehicle | |
| CN209062060U (en) | One kind being used for duplicate gear blank forging mold | |
| CN104209443B (en) | Spline pin roll cold heading device and production process thereof | |
| CN201558876U (en) | Device of forming helical tooth through extrusion in gear blank | |
| CN214557094U (en) | Omnidirectional limiting device for blank in VGR rack rotary forging process | |
| CN1772431A (en) | Maching process and mold for annulus of external gear reduced one-way device | |
| US8210016B2 (en) | Multi-station dies for extruding teeth | |
| CN214557096U (en) | VGR rack pendulum rolls process blank positioner | |
| CN110961692B (en) | Bolt hole machining device for machining of die | |
| CN214557095U (en) | VGR rack pendulum rolls blank stop device | |
| CN112475187A (en) | Omnibearing limiting device for blank in VGR rack rotary forging process and application of omnibearing limiting device | |
| CN214349377U (en) | VGR rack pendulum rolls process blank positioner | |
| KR100603995B1 (en) | Method for manufacturing pinion drive shaft | |
| CN100429011C (en) | Automatic tooth mesh device for burnishing | |
| CN212577417U (en) | Combined die for processing forged piece with bending deformation on blank section | |
| CN112475188A (en) | Limiting device for two ends of VGR rack swing-rolled blank and application thereof | |
| CN112475189A (en) | VGR rack rotary forging blank limiting device and application thereof | |
| CN112387919A (en) | Blank positioning device for VGR rack rotary forging process and application thereof | |
| CN210254051U (en) | Forming die for bevel gear shaft with large height-diameter ratio | |
| CN108856506A (en) | A kind of mold fabricating tools convenient for oblique surface machining | |
| CN101607263A (en) | The carrying out three-roller cross-rolling shaping on disk-shaped components of revolution body method and apparatus | |
| CN219233874U (en) | Device for preforming rack warm swing rolling blank | |
| CN2703597Y (en) | Device for processing hyacinth-bean-shape pattern roller on machine tool | |
| CN216175411U (en) | Cold extrusion die capable of meeting size of high-precision internal spline of input shaft |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |