CN221134913U - Radial and axial simultaneous rotation follow rest - Google Patents
Radial and axial simultaneous rotation follow rest Download PDFInfo
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- CN221134913U CN221134913U CN202322800581.4U CN202322800581U CN221134913U CN 221134913 U CN221134913 U CN 221134913U CN 202322800581 U CN202322800581 U CN 202322800581U CN 221134913 U CN221134913 U CN 221134913U
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- follower
- steel ball
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- cavity
- opening
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 72
- 239000010959 steel Substances 0.000 claims abstract description 72
- 210000000078 claw Anatomy 0.000 claims abstract description 71
- 238000003754 machining Methods 0.000 description 10
- 230000007547 defect Effects 0.000 description 5
- 238000012856 packing Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
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- Machine Tool Units (AREA)
Abstract
A radially axially simultaneous rotating follower holder comprising: base, support piece and with the sword claw, support piece sets up on the base, with the sword claw setting on support piece, wherein with the sword claw including with sword claw cavity, first steel ball, second steel ball, plain washer and reducing bolt, first steel ball, second steel ball, plain washer set gradually in with the sword claw cavity, the one end of reducing bolt is inscribed in with the sword claw cavity, the other end of reducing bolt is connected in support piece, first steel ball exposes from with the sword claw cavity partially. According to the radial and axial simultaneous rotation follow rest, the follow-up claw adopts the steel balls, so that the contact between the follow-up claw and a workpiece is point contact, and the follow-up claw is driven to radially and axially simultaneously rotate through rotation of the workpiece to form three-axis linkage, so that the problems of surface contact and line contact between the follow-up claw and the workpiece are solved.
Description
Technical Field
The utility model relates to the technical field of metal mechanical cutting machining, in particular to a follower rest capable of rotating radially and axially simultaneously.
Background
When machining long and thin workpieces and long lead screws, the rigidity of the workpieces needs to be increased by adopting a follower rest, wherein the follower rest is a core accessory arranged on a lathe, and plays an auxiliary supporting role for machining long shaft parts and long lead screw parts. In order to meet the functional requirement, the heel claw of the equipped heel frame of the CY6140 lathe is in a cylindrical fixed type. In the machining process, long-shaft workpieces and long-screw workpieces rotate, the cylindrical follow-up claw of the follow-up rest is in surface contact with the surface of the machined workpiece, the cylindrical follow-up claw of the follow-up rest is worn by the cylindrical follow-up claw of the follow-up rest when the workpiece rotates along with the feeding direction of the turning tool, and the groove defect of the cylindrical follow-up claw affects the precision and major potential safety hazard of the machined workpiece.
Bearing rotary type knife-following claws are adopted to rotate together with a workpiece to form three-axis linkage, so that surface contact is changed into linear contact. When in use, the defects that the bearing is seriously damaged when the workpiece rotates at a high speed, the vibration lines on the surface of the workpiece are serious, and small scrap iron is easy to block the bearing gap and the like exist.
Based on this, there is room for improvement in terms of wear of the cylindrical heel jaw of the heel holder.
Disclosure of utility model
Aiming at the defects existing in the prior art, the utility model aims to provide the follower rest which rotates radially and axially simultaneously, so that the technical problem that the cylindrical follower rest is worn into a groove defect in the process of machining long shaft type and long screw type parts by the cylindrical follower rest during machining of the follower rest and the workpiece precision and safety are improved.
In order to achieve the above purpose, the technical scheme provided by the utility model is as follows:
A radially axially simultaneous rotating follower holder comprising: base, support piece and with the sword claw, support piece sets up on the base, with the sword claw setting on support piece, wherein with the sword claw including with sword claw cavity, first steel ball, second steel ball, plain washer and reducing bolt, first steel ball, second steel ball, plain washer set gradually in with the sword claw cavity, the one end of reducing bolt is inscribed in with the sword claw cavity, the other end of reducing bolt is connected in support piece, first steel ball exposes from with the sword claw cavity partially.
In some embodiments, the radially and axially simultaneous rotating follower rest includes two follower fingers having follower finger cavities perpendicular to each other.
In some embodiments, the heel jaw cavity includes a first opening and a second opening, the second opening having a diameter that is smaller than a diameter of the first opening.
In some embodiments, the diameter of the first steel ball is smaller than the diameter of the first opening and larger than the diameter of the second opening.
In some embodiments, the heel claw cavity has two inner diameters, the first inner diameter of the heel claw cavity adjacent the first opening being greater than the second inner diameter adjacent the second opening.
In some embodiments, the reducing bolt includes a first portion, a second portion, and a third portion connecting the first portion and the second portion, the first portion being connected to an interior of the heel jaw cavity adjacent the first opening via the first opening of the heel jaw cavity.
In some embodiments, the first steel ball has a diameter of 18-19 millimeters.
In some embodiments, the second steel ball has a diameter of 6-8 millimeters.
In some embodiments, the flat washer is configured to press the second steel ball within the heel jaw cavity.
In some embodiments, the flat washer is configured to press against the flat washer within the heel pawl cavity.
The beneficial effects of the utility model are as follows:
according to the radial and axial simultaneous rotation follow rest, the follow-up claw adopts the steel balls, so that the contact between the follow-up claw and a workpiece is point contact, and the follow-up claw is driven to radially and axially simultaneously rotate through rotation of the workpiece to form three-axis linkage, so that the problems of surface contact and line contact between the follow-up claw and the workpiece are solved. The following claw and the workpiece synchronously rotate, so that the defect that the following claw wears out a groove is overcome. In addition, the steel balls on the follow-up cutter claw form point contact with the workpiece, the steel balls roll the surface of the workpiece to promote the surface quality of the workpiece, and the machining precision and safety of long-axis and long-screw workpieces are fully ensured.
Drawings
The figures are for ease of understanding and merely show the connection between the components, which are not drawn to scale.
FIG. 1 is a schematic view of a radially and axially concurrently rotating follower holder;
FIG. 2 is a schematic view of the heel claw of the follower rest rotating radially and axially simultaneously;
FIG. 3 is a schematic view of a heel jaw cavity of a heel jaw of a radially and axially concurrently rotating heel jaw of a follower rest;
FIG. 4 is a schematic view of a variable diameter bolt of a follower claw of a follower rest rotated simultaneously in a radial and axial direction;
FIG. 5 is a schematic view of the machined long axis of an embodiment of a radially and axially concurrently rotating follower holder;
FIG. 6 is a schematic view of sections A-A, B-B and C-C of the long axis of the tooling in an embodiment of a radially-axially-simultaneously-rotating follower holder.
Detailed Description
The present utility model will be described in further detail with reference to the following examples and drawings in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
In the description of the present utility model, unless otherwise indicated, the meaning of "plurality of" means greater than or equal to two; the terms "upper," "lower," "left," "right," "inner," "outer," and the like are merely used for convenience in describing the present utility model and to simplify the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present utility model. When the absolute position of the object to be described is changed, the relative positional relationship may be changed accordingly. Furthermore, the use of the terms first, second, and the like in the present application are not used for any order, quantity, or importance, but rather are used for distinguishing between different parts.
The radial and axial simultaneous rotation follower rest provided by the utility model, as shown in fig. 1 and 2, comprises: base 1, support piece 2 and with sword claw 3, support piece 2 sets up on base 1, with sword claw 3 setting on support piece 2, wherein with sword claw 3 including with sword claw cavity 4, first steel ball 5, second steel ball 6, flat packing ring 7, flat packing ring 8 and reducing bolt 9, first steel ball 5, second steel ball 6, flat packing ring 7, flat packing ring 8 set gradually in with sword claw cavity 4, one end of reducing bolt 9 is inscribed in with sword claw cavity 4, the other end of reducing bolt 9 is connected in support piece 2, first steel ball 5 partly exposes from with sword claw cavity 4.
In some embodiments, the base 1 and the support 2 are accessories of a machine tool, belonging to the prior art.
In some embodiments, the radially and axially simultaneous rotating follower rest comprises two follower fingers 3, the follower finger cavities 4 of the two follower fingers 3 being perpendicular to each other. Thus, the two heel claws 3 are respectively brought into contact with the surface of the workpiece in a perpendicular manner.
In some embodiments, as shown in fig. 3, the heel jaw cavity 4 includes a first opening 41 and a second opening 42, the second opening 42 being formed by an inward shrinkage of one end of the heel jaw cavity 4, the second opening 42 having a diameter smaller than the diameter of the first opening 41. Normally, the first steel ball 5 is located in the heel jaw cavity 4 in close proximity to the second opening 42 of the heel jaw cavity 4.
In some embodiments, the diameter of the first steel ball 5 is smaller than the diameter of the first opening 41 and larger than the diameter of the second opening 42, such that the first steel ball 5 can be received inside the heel jaw cavity 4 and does not fall out of the second opening 42 of the heel jaw cavity 4.
In some embodiments, the outer diameter of the heel jaw cavity 4 is uniform, the heel jaw cavity 4 has two inner diameters, and the first inner diameter of the heel jaw cavity 4 adjacent the first opening 41 is greater than the second inner diameter adjacent the second opening 42.
In some embodiments, as shown in fig. 4, the reducing bolt 9 includes a first portion 91, a second portion 92, and a third portion 93 connecting the first portion 91 and the second portion 92, the outer diameter of the first portion 91 matching the first inner diameter of the heel jaw cavity 4 adjacent the first opening 41 such that the first portion 91 of the reducing bolt 9 is connected to the interior of the heel jaw cavity 4 adjacent the first opening 41 via the first opening 41 of the heel jaw cavity 4.
In some embodiments, the outer diameter of the first portion 91 of the variable diameter bolt 9 is greater than the outer diameter of the second portion 92. This is to appropriately increase the inner diameter of the jaw cavity 4 and thus the diameter of the first steel ball 5 so that the first steel ball 5 is in appropriate point contact with the workpiece, on the basis of ensuring the connection of the second portion 92 with the support 2.
In some embodiments, the outer surface of the first portion 91 of the reducing bolt 9 is threaded, and the interior of the heel jaw cavity 4 adjacent the first opening 41 is internally threaded, and the first portion 91 of the reducing bolt 9 is threadedly coupled with the interior of the heel jaw cavity 4 adjacent the first opening 41.
In some embodiments, the outer surface of the second portion 92 of the reducing bolt 9 is threaded, the second portion 92 being screwed onto the support 2.
In some embodiments, the first steel ball 5 has a diameter of 18-19 mm to match the interior of the jaw cavity 4.
In some embodiments, the second steel balls 6 have a diameter of 6-8 mm, and a plurality of second steel balls 6 may be arranged along the circumference of the surface of the first steel ball 5 in the heel claw cavity 4.
In some embodiments, the flat washer 7 is configured to press against the second steel balls 6 within the heel jaw cavity 4, that is, the flat washer 7 is capable of pressing against a plurality of second steel balls 6 circumferentially arranged on the surface of the first steel balls 5 within the heel jaw cavity 4. The flat washer 7 controls the second steel ball 6 to only be attached to the first steel ball 5, so that the second steel ball 6 performs circular circulation along with the rotation of the first steel ball 5.
In some embodiments, the flat washer 8 is configured to press against the flat washer 7 within the heel jaw cavity 4, the flat washer 7 and the flat washer 8 each having an outer diameter smaller than a second inner diameter of the heel jaw cavity 4 adjacent the second opening 42, the flat washer 7 having an outer diameter smaller than an outer diameter of the flat washer 8 such that when the flat washer 8 presses against the flat washer 7, the flat washer 8 separates from the second steel ball 6. The flat gasket 8 plays a role in damping and ensures that the first steel ball 5 and the second steel ball 6 rotate stably.
In some embodiments, flat gasket 7 is a metal flat gasket and flat gasket 8 is a rubber flat gasket having high strength.
In some embodiments, the heel jaw cavity 4 and the reducing bolt 9 are self-machined pieces, and the first steel ball 5, the second steel ball 6, the flat washer 7, and the flat washer 8 are finished pieces.
The assembly of the follower claw 3 of the follower rest which rotates simultaneously in the radial and axial directions comprises the following steps:
Step 1, loading a first steel ball 5 into a heel claw cavity 4 from a first opening 41 of the heel claw cavity 4;
Step 2, loading second steel balls 6 into the heel claw cavity 4 from a first opening 41 of the heel claw cavity 4, wherein the second steel balls 6 are circumferentially arranged on the surface of the first steel balls 5;
Step 3, loading the flat gasket 7 into the heel claw cavity 4 from the first opening 41 of the heel claw cavity 4, and pressing the flat gasket against the surface of the second steel ball 6;
Step 4, loading the flat gasket 8 into the heel claw cavity 4 from the first opening 41 of the heel claw cavity 4, and pressing the flat gasket 8 on the surface of the flat gasket 7;
step 5, screwing the first portion 91 of the reducing bolt 9 from the first opening 41 of the heel jaw cavity 4 into threaded engagement with the interior of the heel jaw cavity 4 adjacent the first opening 41.
In some embodiments, in step 1, the diameter of the first steel ball 5 is 18 millimeters;
In some embodiments, in step 2, the second steel balls 6 have a diameter of 6mm and 7 second steel balls 6 are loaded.
The assembled heel claw 3 is mounted to the support member 2 by means of the second portion 92 of the reducing bolt 9. In operation of the radially axially simultaneous rotating follower holders, a workpiece (not shown) is located between the two follower jaws 3 and is in contact with the two follower jaws 3, respectively.
Taking a long shaft of environmental protection equipment in a coal area of a climbing steel-vanadium iron-making plant as an example, as shown in fig. 5 and 6, the long shaft is outsourced, the outer diameter size of the long shaft is not matched with the equipment when the equipment is installed, the middle positioning step length of the long shaft is 1825 mm, and the outer diameter size isThe outer diameter of the long shaft is required to be processed for the second time. The follow-up claw 3 is assembled by adopting a first steel ball 5 with the diameter of 18 mm, a second steel ball 6 with the diameter of 6 mm, a flat washer 7, a flat gasket 8 and a reducing bolt 9, so that a follow-up rest which rotates radially and axially simultaneously is obtained, secondary processing is carried out on the long shaft in an auxiliary manner, and the long shaft matched with equipment is obtained. The adverse consequences of environmental protection events caused by the incapability of operating environmental protection equipment due to the fact that manufacturers are required to reprocess and deliver goods are avoided.
The working principle of the follower rest capable of rotating radially and axially simultaneously is as follows: the first steel balls 5 and the plurality of second steel balls 6 on the cutter-following claw 3 are driven to synchronously rotate through workpiece rotation, so that sliding friction of large-area contact between the cutter-following claw end face and the workpiece in the prior art is converted into rolling friction of point contact, the abrasion degree is effectively reduced, the normal service life of the cutter-following claw end face is greatly prolonged, and the quality and the surface finish of the machined workpiece are improved.
According to the radial and axial simultaneous rotation follower rest, the first steel balls 5 and the plurality of second steel balls 6 on the follower claw 3 are driven to synchronously rotate through workpiece rotation, the first steel balls 5 rotate in the cavity 360 of the follower claw cavity 4, and the plurality of second steel balls 6 are driven to rotate in the follower claw cavity 4.
The radial and axial simultaneous rotation follower rest is mainly used for machining long shaft type and long screw type workpieces, and is particularly suitable for the metal mechanical cold machining industry. The workpiece rotates to drive the two cutter following claws 3 to rotate to form three-axis linkage, and the cutter following claws 3 can rotate radially and axially simultaneously. The first steel ball 5 on the cutter jaw 3 is in point contact with the workpiece, and the first steel ball 5 rolls the surface of the workpiece to promote the quality of the surface of the workpiece. The following claw 3 adopts the steel ball as a rotating core, so that the manufacturing cost is low and the service life is long.
The follower rest capable of rotating radially and axially simultaneously has the advantages of simple structure, convenience in manufacturing, safety, reliability, high-efficiency and stable machining precision, low manufacturing cost and the like. The auxiliary processing method has the irreversible advantage for the auxiliary processing of long-shaft and long-screw workpieces.
The foregoing examples merely illustrate embodiments of the utility model and are described in more detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.
Claims (10)
1. A radially and axially simultaneous rotating follower holder, comprising: base, support piece and follow the sword claw, support piece sets up on the base, follow the sword claw setting and be in on the support piece, wherein follow the sword claw including follow sword claw cavity, first steel ball, second steel ball, plain washer and reducing bolt, first steel ball the second steel ball the plain washer sets gradually in following the sword claw cavity, reducing bolt's one end inscribe in follow in the sword claw cavity, reducing bolt's the other end connect in support piece, first steel ball is partly followed follow in the sword claw cavity exposes.
2. The radially and axially simultaneous rotating follower rest of claim 1, comprising two of said follower jaws, wherein the follower jaw cavities of two of said follower jaws are perpendicular to each other.
3. The radially and axially concurrently rotating follower holder of claim 1 wherein the follower jaw cavity comprises a first opening and a second opening, the second opening having a diameter less than a diameter of the first opening.
4. A radially and axially co-rotating follower holder according to claim 3, wherein the diameter of the first steel ball is smaller than the diameter of the first opening and larger than the diameter of the second opening.
5. A radially and axially simultaneous rotating follower holder as defined in claim 3 wherein the follower jaw cavity has two inner diameters, the first inner diameter of the follower jaw cavity adjacent the first opening being greater than the second inner diameter adjacent the second opening.
6. A radially and axially simultaneous rotating follower holder according to claim 3, wherein the reducing bolt comprises a first portion, a second portion, and a third portion connecting the first portion and the second portion, the first portion being connected to an interior of the follower jaw cavity adjacent the first opening via the first opening of the follower jaw cavity.
7. The radially and axially simultaneous rotating follower holder of claim 1, wherein the first steel ball has a diameter of 18-19 mm.
8. The radially and axially simultaneous rotating follower holder of claim 1, wherein the second steel ball has a diameter of 6-8 millimeters.
9. The radially and axially concurrently rotating follower holder of claim 1, wherein the flat washer is configured to press the second steel ball within the follower jaw cavity.
10. The radially and axially concurrently rotating follower holder of claim 1, wherein the flat washer is configured to press against the flat washer within the follower jaw cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322800581.4U CN221134913U (en) | 2023-10-17 | 2023-10-17 | Radial and axial simultaneous rotation follow rest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322800581.4U CN221134913U (en) | 2023-10-17 | 2023-10-17 | Radial and axial simultaneous rotation follow rest |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221134913U true CN221134913U (en) | 2024-06-14 |
Family
ID=91384980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322800581.4U Active CN221134913U (en) | 2023-10-17 | 2023-10-17 | Radial and axial simultaneous rotation follow rest |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221134913U (en) |
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2023
- 2023-10-17 CN CN202322800581.4U patent/CN221134913U/en active Active
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