CN219026649U - Eccentric hole chamfering tool - Google Patents

Eccentric hole chamfering tool Download PDF

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Publication number
CN219026649U
CN219026649U CN202221321982.0U CN202221321982U CN219026649U CN 219026649 U CN219026649 U CN 219026649U CN 202221321982 U CN202221321982 U CN 202221321982U CN 219026649 U CN219026649 U CN 219026649U
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shaft
accommodating groove
eccentric
small
tool body
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CN202221321982.0U
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Chinese (zh)
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秦建
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Individual
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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Abstract

The utility model discloses an eccentric hole chamfering tool, which is used for processing a step shaft with a through center hole and an eccentric hole, and comprises the following steps: a tool body; the large shaft accommodating groove is formed in one end face of the tool body, and the large shaft of the step shaft is arranged in the large shaft accommodating groove; the small shaft accommodating groove is formed in the bottom of the large shaft accommodating groove, and the small shaft of the step shaft is arranged in the small shaft accommodating groove; the center positioning shaft is arranged at the bottom of the small shaft accommodating groove and is positioned at the center of the tool body, and the center hole is sleeved on the center positioning shaft; the eccentric positioning shaft is arranged at the bottom of the small shaft accommodating groove, the position of the eccentric positioning shaft corresponds to the eccentric hole, and the eccentric hole is sleeved on the eccentric positioning shaft; the elastic piece is sleeved on the central positioning shaft or the eccentric positioning shaft, and two ends of the elastic piece respectively lean against the end face of the small shaft of the step shaft and the bottom of the small shaft accommodating groove; and the at least one fixing part is arranged at one end face of the tool body, provided with the large shaft accommodating groove, and used for overcoming the elastic force of the elastic piece to fasten the step shaft in the tool body in a pressing mode.

Description

Eccentric hole chamfering tool
Technical Field
The utility model belongs to the technical field of machining, and particularly relates to an eccentric hole chamfering tool.
Background
When a workpiece which is provided with a stepped shaft and is provided with a central hole and an eccentric hole is processed, mass production can be performed by a turning center.
During machining, a blank workpiece is clamped on a chuck, one end with a small diameter is turned, a hole is machined through a drill bit, and two through center holes and eccentric holes in the horizontal direction of the workpiece can be machined at one time due to a turret with a power head of a turning center, so that the position relation of the two through center holes and the eccentric holes is ensured, and chamfering of two holes on the end face of the small shaft can be machined at one time in the turning center.
The chamfer of the center hole of the end face of the large shaft can be processed through secondary clamping in the turning center or can be processed in the drilling machine, but the relative position relation between the eccentric hole and the center hole after the secondary clamping cannot be guaranteed to be consistent with that of the primary clamping, the secondary clamping is a small shaft, the chamfer of the eccentric hole after the clamping is processed has steps, one side is stressed when a cutter contacts a workpiece, the workpiece is inclined, and the workpiece cannot be effectively processed.
Disclosure of Invention
In view of the problems in the background art, an object of the present utility model is to provide an eccentric hole chamfering tool for machining a stepped shaft having a through center hole and an eccentric hole, comprising:
a tool body;
the large shaft accommodating groove is formed in one end face of the tool body, and the large shaft of the step shaft is arranged in the large shaft accommodating groove;
the small shaft accommodating groove is formed in the bottom of the large shaft accommodating groove, and the small shaft of the step shaft is arranged in the small shaft accommodating groove;
the center positioning shaft is arranged at the bottom of the small shaft accommodating groove and is positioned at the center of the tool body, and the center hole is sleeved on the center positioning shaft;
the eccentric positioning shaft is arranged at the bottom of the small shaft accommodating groove, the position of the eccentric positioning shaft corresponds to the eccentric hole, and the eccentric hole is sleeved on the eccentric positioning shaft;
the elastic piece is sleeved on the central positioning shaft or the eccentric positioning shaft, and two ends of the elastic piece respectively lean against the small shaft end face of the step shaft and the bottom of the small shaft accommodating groove;
and the fixing part is arranged on one end face of the tool body, provided with the large shaft accommodating groove, and used for overcoming the elastic force of the elastic piece to tightly fix the step shaft in the tool body.
Preferably, the large shaft accommodating groove and the small shaft accommodating groove are circular and are respectively matched with the large shaft and the small shaft of the step shaft, and the large shaft accommodating groove and the small shaft accommodating groove are respectively arranged at the central position of the tool body.
Preferably, the side wall of the large shaft accommodating groove is provided with at least two opposite openings communicated with the outside, and the large shaft accommodating groove is provided with an open groove at the bottom edge of the opening.
Preferably, the fixing part comprises a bolt and a gasket, the tool body is provided with a screw hole on one end face of the large shaft accommodating groove, the bolt is arranged in the screw hole, and the gasket is sleeved on the bolt and presses the large shaft end face of the step shaft.
Preferably, the fixing parts are four and are respectively arranged on four corners of the tool body.
Preferably, the elastic element is a spring.
Preferably, the central positioning shaft and the eccentric positioning shaft are pin shafts, two pin holes are formed in the bottom of the small shaft accommodating groove, and the central positioning shaft and the eccentric positioning shaft are respectively arranged in the two pin holes.
Preferably, the tool body is square.
By adopting the technical scheme, the utility model has the following advantages and positive effects compared with the prior art:
according to the utility model, the central positioning shaft and the eccentric positioning shaft are respectively matched with the central hole and the eccentric hole to realize positioning, and the central positioning shaft and the eccentric positioning shaft can limit the rotation of the step shaft, so that the problems that the step shaft shakes when chamfering the eccentric hole to cause position deviation and uneven stress and cannot be processed are prevented.
According to the utility model, the elastic piece and the fixing part are arranged, so that the step shaft can automatically pop up after chamfering is finished, and a workpiece is conveniently taken down.
Drawings
The utility model is described in further detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a front view of the present utility model;
FIG. 2 is a top view of the present utility model;
FIG. 3 is a side view of the present utility model;
FIG. 4 is a small axial end view of the workpiece of the present utility model;
fig. 5 is a large axial end view of the workpiece of the present utility model.
Reference numerals illustrate:
1: a step shaft; 2: a central bore; 3: an eccentric hole; 4: a tool body; 5: a large shaft accommodating groove; 6: a small shaft accommodating groove; 7: a center positioning shaft; 8: eccentric positioning shaft; 9: an opening; 10: a bolt; 11: a gasket; 12: the groove is opened.
Detailed Description
The utility model is described in further detail below with reference to the drawings and the specific examples. The advantages and features of the present utility model will become more apparent from the following description. It is noted that the drawings are in a very simplified form and utilize non-precise ratios, and are intended to facilitate a convenient, clear, description of the embodiments of the utility model.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Referring to fig. 1 to 5, the core of the present utility model is to provide an eccentric hole chamfering tool for machining a stepped shaft 1 having a center hole 2 and an eccentric hole 3 therethrough, comprising a tool body 4, a large shaft receiving groove 5, a small shaft receiving groove 6, a center positioning shaft 7, an eccentric positioning shaft 8, an elastic member, and at least one fixing portion.
One end of the step shaft 1 is a large shaft, the other end is a small shaft, a central hole 2 is arranged in the center, and an eccentric hole 3 is arranged beside the central hole 2. The eccentric hole chamfering tool is used for chamfering the eccentric hole 3 on the large shaft end face of the step shaft 1.
The tool body 4 is square in this embodiment, but may be other shapes in other embodiments, and is not limited herein. The square shape is convenient for reference positioning during clamping.
The large shaft accommodating groove 5 is arranged on one end face of the tool body 4 and is positioned at the center of the tool body 4. The small shaft accommodating groove 6 is arranged at the bottom of the large shaft accommodating groove 5 and is also positioned at the center of the tool body 4.
The large shaft accommodating groove 5 and the small shaft accommodating groove 6 are circular and are respectively matched with the large shaft and the small shaft of the step shaft 1, the large shaft of the step shaft 1 is arranged in the large shaft accommodating groove 5, and the small shaft of the step shaft 1 is arranged in the small shaft accommodating groove 6. The step shaft 1 can be well accommodated through the large shaft accommodating groove 5 and the small shaft accommodating groove 6, and the small shaft end face of the step shaft 1 can be well attached to the bottom plane of the small shaft groove.
The large shaft accommodating groove 5 and the small shaft accommodating groove 6 are positioned at the center of the tool body 4, and the tool body 4 is square, so that the tool body 4 can rapidly position the step shaft 1 to the center during clamping.
The center locating shaft 7 is arranged at the bottom of the small shaft accommodating groove 6 and is positioned at the center of the tool body 4, and the center hole 2 is sleeved with the center locating shaft 7. The eccentric positioning shaft 8 is arranged at the bottom of the small shaft accommodating groove 6 and corresponds to the eccentric hole 3 in position, and the eccentric hole 3 is sleeved on the eccentric positioning shaft 8.
Specifically, the central positioning shaft 7 and the eccentric positioning shaft 8 are pin shafts, two pin holes are formed in the bottom of the small shaft accommodating groove 6, and the central positioning shaft 7 and the eccentric positioning shaft 8 are respectively arranged in the two pin holes. Of course, the center positioning shaft 7 and the eccentric positioning shaft 8 can also be arranged at the bottom of the small shaft accommodating groove 6 in a threaded connection mode.
The center positioning shaft 7 and the eccentric positioning shaft 8 are respectively matched with the center hole 2 and the eccentric hole 3 to realize positioning, so that the relative positions of the eccentric hole 3 and the center hole 2 are accurately positioned. The center positioning shaft 7 and the eccentric positioning shaft 8 can limit the rotation of the step shaft 1, so that the problems that the step shaft 1 shakes when chamfering the eccentric hole 3, so that the position deviation and the uneven stress are caused, and the machining cannot be performed are prevented, namely, the chamfer drill is uneven in stress when machining the chamfer of the eccentric hole 3, but the step shaft 1 can bear through the center positioning shaft 7 and the eccentric positioning shaft 8, so that the step shaft cannot overturn.
The elastic piece is sleeved on the central positioning shaft 7 or the eccentric positioning shaft 8, and two ends of the elastic piece respectively lean against the small shaft end face of the step shaft 1 and the bottom of the small shaft accommodating groove 6, and in the embodiment, the elastic piece is a spring. The fixed part is located the frock body 4 and is set up the terminal surface of big axle accommodation groove 5 for overcome the elastic force of elastic component and compress tightly step axle 1 and fix in frock body 4, the fixed part is equipped with four in this embodiment, locates respectively on the four angles of frock body 4.
Through setting up elastic component and fixed part for step axle 1 can pop out after the chamfer is accomplished, conveniently takes off step axle 1.
Specifically, the fixed part includes bolt and gasket, is equipped with screw 10 on the terminal surface that frock body 4 set up big axle accommodation groove 5, and the screw 10 is located to the bolt, and the gasket cover is located the bolt and is pressed the big axle terminal surface of step axle 1, compresses tightly step axle 1 through bolt and gasket.
Preferably, the side wall of the large shaft accommodating groove 5 is provided with at least two opposite openings 9 communicated with the outside, and the large shaft accommodating groove 5 is provided with an open groove at the bottom edge of the opening 9. In this embodiment, four openings 9 are provided on the side wall of the large shaft accommodating groove 5, and the openings are located in four directions of the tool body 4 respectively, that is, the diameter of the large shaft accommodating groove 5 is greater than the square length of the tool body 4, so that a part of the four directions of the tool body 4 is cut out to form the openings 9. The large shaft accommodating groove 5 is provided with open grooves at the edge of the groove bottom at the four openings 9, and the open grooves are used for accommodating fingers, so that the tool body 4 can be conveniently taken by hands.
According to the utility model, a new tool is designed by taking the positions of the central hole 2 and the eccentric hole 3 as references, so that the problems of inaccurate positioning and uneven stress and easy dumping during the machining of the chamfer angle of the eccentric hole 3 are solved.
The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited to the above embodiments. Even if various changes are made to the present utility model, it is within the scope of the appended claims and their equivalents to fall within the scope of the utility model.

Claims (8)

1. An eccentric hole chamfer frock for processing have the centre bore that runs through and eccentric hole's step axle, its characterized in that includes:
a tool body;
the large shaft accommodating groove is formed in one end face of the tool body, and the large shaft of the step shaft is arranged in the large shaft accommodating groove;
the small shaft accommodating groove is formed in the bottom of the large shaft accommodating groove, and the small shaft of the step shaft is arranged in the small shaft accommodating groove;
the center positioning shaft is arranged at the bottom of the small shaft accommodating groove and is positioned at the center of the tool body, and the center hole is sleeved on the center positioning shaft;
the eccentric positioning shaft is arranged at the bottom of the small shaft accommodating groove, the position of the eccentric positioning shaft corresponds to the eccentric hole, and the eccentric hole is sleeved on the eccentric positioning shaft;
the elastic piece is sleeved on the central positioning shaft or the eccentric positioning shaft, and two ends of the elastic piece respectively lean against the small shaft end face of the step shaft and the bottom of the small shaft accommodating groove;
and the fixing part is arranged on one end face of the tool body, provided with the large shaft accommodating groove, and used for overcoming the elastic force of the elastic piece to tightly fix the step shaft in the tool body.
2. The eccentric hole chamfering tool according to claim 1, wherein the large shaft accommodating groove and the small shaft accommodating groove are circular and are respectively matched with the large shaft and the small shaft of the step shaft, and the large shaft accommodating groove and the small shaft accommodating groove are respectively arranged at the center position of the tool body.
3. The eccentric hole chamfering tool according to claim 2, wherein the side wall of the large shaft accommodating groove is provided with at least two opposite openings communicated with the outside, and the large shaft accommodating groove is provided with an open groove at the bottom edge of the opening.
4. The eccentric hole chamfering tool according to claim 1, wherein the fixing portion comprises a bolt and a gasket, a screw hole is formed in an end face of the tool body where the large shaft accommodating groove is formed, the bolt is arranged in the screw hole, and the gasket is sleeved on the bolt and presses the large shaft end face of the step shaft.
5. The eccentric hole chamfering tool according to claim 1, wherein the fixing portion is provided with four, which are provided on four corners of the tool body, respectively.
6. The eccentric hole chamfering tool according to claim 1, wherein the elastic member is a spring.
7. The eccentric hole chamfering tool according to claim 1, wherein the center positioning shaft and the eccentric positioning shaft are pin shafts, two pin holes are formed in the bottom of the small shaft accommodating groove, and the center positioning shaft and the eccentric positioning shaft are respectively arranged in the two pin holes.
8. The eccentric hole chamfering tool according to claim 1, wherein the tool body is square.
CN202221321982.0U 2022-05-30 2022-05-30 Eccentric hole chamfering tool Active CN219026649U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221321982.0U CN219026649U (en) 2022-05-30 2022-05-30 Eccentric hole chamfering tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221321982.0U CN219026649U (en) 2022-05-30 2022-05-30 Eccentric hole chamfering tool

Publications (1)

Publication Number Publication Date
CN219026649U true CN219026649U (en) 2023-05-16

Family

ID=86273949

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202221321982.0U Active CN219026649U (en) 2022-05-30 2022-05-30 Eccentric hole chamfering tool

Country Status (1)

Country Link
CN (1) CN219026649U (en)

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