CN112108906A - Shaft disc part clamping tool with small tool retracting space - Google Patents
Shaft disc part clamping tool with small tool retracting space Download PDFInfo
- Publication number
- CN112108906A CN112108906A CN202010888493.2A CN202010888493A CN112108906A CN 112108906 A CN112108906 A CN 112108906A CN 202010888493 A CN202010888493 A CN 202010888493A CN 112108906 A CN112108906 A CN 112108906A
- Authority
- CN
- China
- Prior art keywords
- tool
- base
- retracting space
- shaft disc
- small
- 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
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
The invention provides a shaft disc part clamping tool with small tool retracting space, belonging to the technical field of tool clamps.
Description
Technical Field
The invention belongs to the technical field of tool fixtures, and particularly relates to a shaft disc part clamping tool with a small tool retracting space.
Background
In the machining process, the tool retracting space of a plurality of shaft and disc part parts is small, and even no tool retracting space exists, so that a pressing plate, a pressing block, a standard fastener and the like which are commonly used for clamping and positioning the parts cannot be used, the parts cannot be connected with a tool or the machining position of the tool is influenced after the parts are connected, the drawing size requirement cannot be met, and the clamping tool which can clamp and does not influence the machining size of the tool under the condition that the tool retracting space is small is needed.
Disclosure of Invention
The invention overcomes the defects of the prior art, provides a shaft disc part clamping tool with small tool retracting space, and aims to solve the problems that the tool cannot be clamped or the tool cannot be accurately machined after clamping due to the small tool retracting space of the shaft disc part.
In order to achieve the above object, the present invention is achieved by the following technical solutions.
The clamping tool for the shaft disc parts with small tool retracting space comprises a base fixedly mounted on a machine tool and is suitable for shaft disc parts positioned by adopting a center hole, pin shafts are arranged at the upper end and the lower end of the base and are arranged concentrically, a positioning structure used for positioning the parts is arranged on the base, the shape of the positioning structure is matched with that of the positioning parts of the parts, a taper screw is arranged on the end face of the base and is used for fixedly clamping the base and the parts, the size of the taper screw is matched with the aperture of a mounting hole, and the taper of the taper screw needs to meet the requirement of the tool retracting space.
Further, the positioning structure is a boss.
Further, the cross-sectional shape of the base is circular.
Compared with the prior art, the invention has the beneficial effects that: the conical surface is used for compressing the part by setting the taper screw, so that the height of the screw extending out of the end face of the part is reduced, the problem that the space between the shaft disc part and the hob is too small is solved, and the requirement on the machining precision of the part is met.
Drawings
FIG. 1 is a schematic view of the part and hob machining position;
FIG. 2 is a top view of the clamping tool for the shaft disc type parts with small tool retracting space;
FIG. 3 is a rotated view along A-A of FIG. 2;
FIG. 4 is a schematic structural diagram of the assembly completion of the shaft disc type part clamping tool with small tool retracting space and the part;
fig. 5 is a schematic structural view of a taper screw.
The tool comprises a spline shaft 1, a spline hob 2, a mounting hole 3, a circular groove 4, a lightening hole 5, a part base 6, a tool base 11, a first pin shaft 12, a second pin shaft 13, a boss 14, a mounting hole 15, a threaded hole 16, a taper screw 17 and a nut 18.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail with reference to the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solution of the present invention is described in detail below with reference to the embodiments and the drawings, but the scope of protection is not limited thereto.
As shown in fig. 1, the shaft part adopting the center positioning comprises a circular part base 6 and a spline shaft 1 arranged on the part base 6, wherein a circular groove 4 and a lightening hole 5 are formed at the lower end of the part base 6, eight phi 13 mounting holes 3 are uniformly formed in the part base 6 along the circumferential direction, the effective processing length of the spline on the spline shaft 1 is long, the lowest point of a spline hob 2 and the height direction of the upper end face of the part base 6 are only 3.5mm, at the moment, if a national standard fastener is selected, a standard bolt of M12 needs to be selected for the mounting hole 1, the length of a top cap of the standard bolt is 12mm, the standard bolt interferes with the spline hob, and the machining cannot be performed, so that a pressing plate or a bolt nut cannot be adopted for pressing the part and the tool.
As shown in fig. 2 and 3, the clamping tool of the present invention used in cooperation with the component shown in fig. 1 comprises a tool base 11, wherein a first pin 12 and a second pin 13 are concentrically arranged at the upper end and the lower end of the tool base 11, respectively, a boss 14 is arranged between the tool base 11 and the second pin 13 for positioning in cooperation with a positioning hole of the component, the first pin 12 is used for fixedly mounting the base in a spindle of a machine tool (not shown in the figure) through a clamp, and when the tool of the present invention is processed, central holes of the first pin 12 and the second pin 13 are used for positioning, and the central holes are consistent with a positioning reference of the component. Two mounting holes 15 with the diameter of 13mm and two threaded holes 16 with the diameter of M12 are symmetrically arranged on the end face of the tool base 11 along the radial direction, the mounting holes 15 and the threaded holes 16 are distributed at 90 degrees, the mounting holes 3 are matched with nuts 18 and self-developed taper screws 17 to fixedly clamp the base and the part to finish assembly, and as shown in FIG. 4, when the tool base is disassembled, two M12 bolts are screwed into the two threaded holes 16 from the lower end of the base 11 to eject the part.
As shown in fig. 5, a taper of 1: the taper screw 17 of 20, the purpose is to cooperate the mounting hole 3 of the part, its maximum diameter is processed into four kinds of specifications: phi 13.3 +/-0.02, phi 13.2 +/-0.02, phi 13.1 +/-0.02 and phi 13 +/-0.02, selecting two symmetrical mounting holes 1 on a part to mount taper screws, and selecting two taper screws to enable the maximum diameter of the two taper screws to be 0.1mm larger than the actual diameter of the mounting holes 1 according to the actual diameter of the mounting holes 1, so that a pressing force can be applied to the part when the taper screws are tightened, and the height of the screws can be guaranteed not to exceed 1mm of the end face of the part all the time, so that the tool retracting space between a hob and the end face of the part can be guaranteed.
While the invention has been described in further detail with reference to specific preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (3)
1. The clamping tool for the shaft disc type part with the small tool retracting space comprises a base fixedly mounted on a machine tool and is characterized in that pin shafts are arranged at the upper end and the lower end of the base and are arranged concentrically, a positioning structure used for positioning the part is arranged on the base, the shape of the positioning structure is matched with that of the positioning part of the part, a taper screw is arranged on the end face of the base and is used for fixedly clamping the base and the part, the size of the taper screw is matched with the aperture of a mounting hole, and the taper of the taper screw meets the requirement of the tool retracting space.
2. The shaft disc part clamping tool with small tool retracting space as claimed in claim 1, wherein the positioning structure is a boss.
3. The shaft disc part clamping tool with small tool retracting space as claimed in claim 1, wherein the cross section of the base is circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010888493.2A CN112108906A (en) | 2020-08-28 | 2020-08-28 | Shaft disc part clamping tool with small tool retracting space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010888493.2A CN112108906A (en) | 2020-08-28 | 2020-08-28 | Shaft disc part clamping tool with small tool retracting space |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112108906A true CN112108906A (en) | 2020-12-22 |
Family
ID=73804512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010888493.2A Pending CN112108906A (en) | 2020-08-28 | 2020-08-28 | Shaft disc part clamping tool with small tool retracting space |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112108906A (en) |
-
2020
- 2020-08-28 CN CN202010888493.2A patent/CN112108906A/en active Pending
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |