CN213135844U

CN213135844U - Clamp for step shaft structure and machine tool

Info

Publication number: CN213135844U
Application number: CN202021359050.6U
Authority: CN
Inventors: 刘鑫; 吴益群; 郭桂香
Original assignee: Chongyi Zhangyuan Tungsten Co Ltd
Current assignee: Chongyi Zhangyuan Tungsten Co Ltd
Priority date: 2020-07-10
Filing date: 2020-07-10
Publication date: 2021-05-07
Anticipated expiration: 2030-07-10

Abstract

The utility model discloses an anchor clamps and lathe for step axle construction, step axle include first shaft segment and the second shaft segment of arranging in proper order along the axis direction, and the diameter of first shaft segment is greater than the diameter of second shaft segment, and anchor clamps include: the end face of one end, far away from the second shaft section, of the first shaft section is suitable for abutting against the mounting reference surface; the pressing block is located on one side, provided with the installation reference surface, of the base and is spaced from the base, the pressing block is suitable for being sleeved on the second shaft section, the first shaft section is located between the pressing block and the base, and the pressing block is connected with the base through a fastener. According to the utility model discloses an anchor clamps for step axle construction through setting up base and briquetting, through base and briquetting location step axle, has guaranteed the reliability to step axle location, and has solved the part processing problem that the clamping position is less, the unable circumstances such as processing apex hole, improves the qualification rate of part, reduces manufacturing cost, makes production simplification.

Description

Clamp for step shaft structure and machine tool

Technical Field

The utility model belongs to the technical field of machining, especially, relate to an anchor clamps and lathe for step axle construction.

Background

With the continuous development of manufacturing industry, the requirements of high-end equipment on the geometric accuracy and form and position tolerance of various parts are increased day by day, and in the machining process, parts with step structures are not ideal in geometric accuracy and form and position tolerance after machining due to insufficient clamping positions, so that the product yield is affected.

In the traditional machining process, a chuck and a tip are used for clamping and then machining is carried out. However, for some parts which have small clamping positions and cannot be machined into a tip hole and the like, problems are encountered during machining, and special fixtures are needed for completing machining.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an anchor clamps for step axle construction, anchor clamps improve the qualification rate of part, reduce manufacturing cost, make production simplification.

The utility model also provides a lathe, the lathe includes the above-mentioned anchor clamps that are used for step axle construction.

According to the utility model discloses an anchor clamps for step axle construction, the step axle includes first shaft segment and the second shaft segment of arranging in proper order along the axis direction, the diameter of first shaft segment is greater than the diameter of second shaft segment, anchor clamps include: the end face of one end, far away from the second shaft section, of the first shaft section is suitable for abutting against the installation reference surface; the pressing block is located on one side, provided with the installation reference surface, of the base and spaced from the base, the pressing block is suitable for being sleeved on the second shaft section, the first shaft section is located between the pressing block and the base, and the pressing block is connected with the base through a fastener.

According to the utility model discloses an anchor clamps for step axle construction through setting up base and briquetting, through base and briquetting location step axle, has guaranteed the reliability to step axle location, and has solved the part processing problem that the clamping position is less, the unable circumstances such as processing apex hole, improves the qualification rate of part, reduces manufacturing cost, makes production simplification.

According to some embodiments of the utility model, be equipped with the locating hole on the base, follow the axis direction of locating hole, the diameter of locating hole is the same.

According to some embodiments of the utility model, be equipped with the mounting hole on the base, the mounting hole is the heavy platform hole.

According to some embodiments of the utility model, the briquetting includes: the first pressing block and the second pressing block are both formed into a semicircular ring shape, the first pressing block and the second pressing block are spliced together to be sleeved on the second shaft section, and the first pressing block and the second pressing block are both connected with the base through the fastener.

According to some embodiments of the present invention, further comprising: the holding ring, the holding ring is located the base with between the briquetting, the holding ring is suitable for the cover to be established on the first shaft part, the briquetting the holding ring with the base passes through the fastener is connected.

In some embodiments of the present invention, one side of the base is provided with a boss, a free end surface of the boss is formed as the installation reference surface, and the positioning ring is sleeved on the boss.

In some embodiments of the present invention, the positioning ring includes a first positioning section and a second positioning section, the first positioning section is disposed on the boss, the second positioning section is suitable for the sleeve to be disposed on the first shaft section, and the aperture of the first positioning section is smaller than the aperture of the second positioning section.

The utility model discloses an in some embodiments, be equipped with the regulation hole that extends along radial direction on the first location section, the regulation hole runs through the first location section, the regulation hole is a plurality of, and is a plurality of the regulation hole is followed the circumference direction of first location section is spaced apart.

According to the utility model discloses lathe, including the above-mentioned anchor clamps that are used for step axle construction.

According to the utility model discloses lathe through setting up base and briquetting, through base and briquetting location step axle, has guaranteed the reliability to step axle location, and has solved the part processing problem of the less, unable conditions such as processing apex hole of clamping position, improves the qualification rate of part, reduces manufacturing cost, makes production simplification.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a workpiece to be processed according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a workpiece to be machined according to another embodiment of the present invention;

fig. 3 is an assembly view of a jig for a stepped shaft structure and a workpiece to be machined according to an embodiment of the present invention;

fig. 4 is an exploded view of a fixture for a stepped shaft structure and a workpiece to be machined according to an embodiment of the present invention;

fig. 5 is a front view of a base of a fixture for a stepped shaft structure according to an embodiment of the present invention;

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;

fig. 7 is a front view of a retaining ring for a fixture of a stepped shaft configuration in accordance with an embodiment of the present invention;

FIG. 8 is a cross-sectional view of the retaining ring of FIG. 7;

fig. 9 is a front view of a clamp press block for a stepped shaft structure according to an embodiment of the present invention;

fig. 10 is a cross-sectional view of the retaining ring of fig. 9.

Reference numerals:

the clamping apparatus (10) is provided with a clamping device,

the base 1, the boss 11, the mounting reference surface 111, the positioning hole 12, the mounting hole 13, the first threaded hole 14,

a pressing block 2, a first pressing block 21, a second pressing block 22, a second through hole 23,

a positioning ring 3, a third through hole 31, a first positioning segment 32, an adjusting hole 321, a second positioning segment 33,

the number of the fastening elements 4 is such that,

the step shaft 20 is provided at the center of the step shaft,

a first shaft segment 201, a second shaft segment 202, a third shaft segment 203.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

A jig 10 for a stepped shaft 20 structure according to an embodiment of the present invention is described below with reference to fig. 1 to 10.

Specifically, as shown in fig. 1 and fig. 2, the step shaft 20 includes a first shaft section 201 and a second shaft section 202 arranged in sequence along the axial direction, and the diameter of the first shaft section 201 is greater than the diameter of the second shaft section 202, as shown in fig. 3 and fig. 4, the fixture 10 according to the embodiment of the present invention includes a base 1 and a pressing block 2.

Specifically, as shown in fig. 3 and 4, one side of the base 1 has a mounting reference surface 111, and it is understood that the mounting reference surface 111 is a finished surface. The end surface of the first shaft section 201, which is far away from the end of the second shaft section 202, is suitable for abutting against the installation reference surface 111, so that the installation of the step shaft 20 is facilitated, the installation precision of the step shaft 20 can be improved, the step shaft 20 and the installation reference surface 111 are ensured to be in a vertical state, and the machining precision of the step shaft 20 is ensured. The pressing block 2 is located on one side, provided with the installation reference surface 111, of the base 1 and spaced from the base 1, the pressing block 2 is suitable for being sleeved on the second shaft section 202, the first shaft section 201 is located between the pressing block 2 and the base 1, the pressing block 2 and the base 1 are connected through the fastener 4, the base 1 is provided with a first threaded hole 14 for the fastener 4 to pass through, and the pressing block 2 is provided with a second through hole 23 for the fastener 4 to pass through. The first shaft section 201 is clamped between the pressing block 2 and the base 1, the step shaft 20 is positioned in the axial direction of the step shaft 20, in addition, the pressing block 2 is sleeved on the second shaft section 202, the step shaft 20 is positioned in the radial direction of the step shaft 20, and the positioning reliability of the step shaft 20 is ensured.

In the positioning process, the base 1 is connected with a transmission part of a machine tool, the step shaft 20 to be processed is placed on the installation reference surface 111 of the base 1, the pressing block 2 is pressed against the step surface of the step shaft 20 by the fastening piece 4, so that the pressing block 2 of the step shaft 20 and the base 1 are integrated, the step shaft 20 is positioned, the part to be processed is connected with the machine tool, and the step shaft 20 structure meeting the process requirements can be processed by the machine tool.

In addition, the fixture 10 solves the problem of processing parts with small clamping positions and incapability of processing center holes and the like, improves the qualification rate of the parts, reduces the production cost and simplifies the production.

According to the utility model discloses an anchor clamps 10 for step axle 20 structure through setting up base 1 and briquetting 2, through

base

1 and 2 location step axles 20 of briquetting, has guaranteed the reliability to step axle 20 location, and has solved the part processing problem that the centre gripping position is less, can't process the circumstances such as apex hole, improves the qualification rate of part, reduces manufacturing cost, makes production simple and easy.

As shown in fig. 3 to 6, the base 1 is provided with a positioning hole 12, and the diameter of the positioning hole 12 is the same along the axial direction of the positioning hole 12. The base 1 can be arranged on a headstock of a machine tool, a positioning column matched with the positioning hole 12 can be arranged on the machine tool, and the positioning of the base 1 can be realized through the matching of the positioning hole 12 and the positioning column, so that the positioning of the step shaft 20 is realized, and the quick disassembly and quick assembly of the base 1 can be realized. In addition, the size of the base 1 can be set according to the size of the connecting transmission mechanism of different machine tools.

Further, as shown in fig. 3-6, the base 1 is provided with a mounting hole 13, and the mounting hole 13 is a counter sink hole. Thereby facilitating the penetration of fasteners such as bolts into the mounting holes 13 and the installation of the fasteners 4. The mounting holes 13 can be sized according to interfaces of different machine tool transmission mechanisms, so that different machine tools can be matched, and the universality of the clamp 10 is improved.

As shown in fig. 9 and 10, the pressing block 2 includes a first pressing block 21 and a second pressing block 22, the first pressing block 21 and the second pressing block 22 are both formed into a semicircular ring shape, the first pressing block 21 and the second pressing block 22 are spliced to be sleeved on the second shaft section 202 together, and the first pressing block 21 and the second pressing block 22 are both connected with the base 1 through a fastener 4. Therefore, the first pressing block 21 and the second pressing block 22 are conveniently sleeved on the second shaft section 202, as shown in fig. 2, when the stepped shaft 20 further comprises the third shaft section 203, the third shaft section 203 is arranged at one end, far away from the first shaft section 201, of the second shaft section 202, and the diameter of the third shaft section 203 is larger than that of the second shaft section 202, in order to ensure the matching effect of the pressing block 2 and the second shaft section 202, and the pressing block 2 is conveniently sleeved on the second shaft section 202, the pressing block 2 is conveniently arranged into the first pressing block 21 and the second pressing block 22 which are separated, the pressing block 2 is conveniently sleeved on the second shaft section 202, and the universality of the pressing block 2 is improved.

In some embodiments of the present invention, as shown in fig. 3 and 4, the fixture 10 further includes a positioning ring 3, the positioning ring 3 is located between the base 1 and the pressing block 2, the positioning ring 3 is suitable for being sleeved on the first shaft segment 201, the pressing block 2, the positioning ring 3 and the base 1 are connected through the fastening member 4, and the positioning ring 3 is provided with a third through hole 31 for the fastening member 4 to pass through. The positioning ring 3 can further position the stepped shaft 20 in the radial direction. In addition, after the base 1 and the positioning ring 3 are assembled on the machine tool, the step shaft 20 can be conveniently positioned, the step shaft 20 does not need to be aligned again, and only the pressing block 2 needs to be clamped again, so that the batch workpieces can be quickly positioned.

Further, as shown in fig. 3, 4 and 6, a boss 11 is provided on one side of the base 1, a free end surface of the boss 11 is formed as a mounting reference surface 111, and the positioning ring 3 is sleeved on the boss 11. Thereby facilitating the positioning of the step shaft 20. Further, as shown in fig. 3, 4 and 8, in the axial direction of the positioning ring 3, the positioning ring 3 includes a first positioning section 32 and a second positioning section 33, the first positioning section 32 is disposed on the boss 11, the second positioning section 33 is adapted to be disposed on the first shaft section 201, and the aperture of the first positioning section 32 is smaller than that of the second positioning section 33. Thereby facilitating the positioning of the step shaft 20.

Further, as shown in fig. 7 and 8, the first positioning segment 32 is provided with a plurality of adjusting holes 321 extending in the radial direction, the adjusting holes 321 penetrate through the first positioning segment 32, and the plurality of adjusting holes 321 are spaced apart in the circumferential direction of the first positioning segment 32. Can wear to establish the screw thread in the regulation hole 321, the screw thread can end with the periphery wall of boss 11 and support, and through the screw in degree of depth of adjusting the screw thread, can adjust the clearance between holding ring 3 and the boss 11 to realize the fine setting of the relative base 1 of holding ring 3, realize better location to step axle 20.

Through production practice, according to the utility model discloses a work piece that anchor clamps 10 processed can realize that work piece quick assembly disassembly, base 1 structure easily match multiple lathe, anchor clamps 10 commonality good. The verticality after machining is good, for example, the verticality of a part with the total length of 150 is finely machined by an external grinding machine can be less than 0.005, and the machined surface has no quality problems such as chattering marks and the like.

A machine tool according to an embodiment of the present invention is described below.

The machine tool according to the embodiment of the present invention includes the above-described jig 10 for the step shaft 20 structure.

According to the utility model discloses lathe through setting up base 1 and briquetting 2, through

base

1 and 2 location step axles 20 of briquetting, has guaranteed the reliability to step axle 20 location, and has solved the part processing problem of the less, unable conditions such as processing apex hole of clamping position, improves the qualification rate of part, reduces manufacturing cost, makes production simplification.

In the practical application process, the base 1 is arranged on a machine tool head frame, the correction boss 11 of the base is coaxial with a machine tool, and the end face of the boss 11 is vertical to the rotating shaft of the machine tool head frame; the positioning ring 3 is arranged on the boss 11 of the base 1 in a matching way, and only the through holes of the fastening pieces 4 are aligned; mounting a workpiece in an inner hole of the positioning ring 3, wherein the end surface of the workpiece is attached to the surface of the boss 11 of the base 1; the pressing block 2 is installed on a fixed workpiece, and the pressing block 2 and the positioning ring 3 are locked on the base 1 through the screw holes of the fastening piece 4, so that the processing can be arranged.

In the description of the present invention, it is to be understood that the terms "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a anchor clamps for step axle construction, its characterized in that, the step axle includes first shaft segment and the second shaft segment that arranges in proper order along the axis direction, the diameter of first shaft segment is greater than the diameter of second shaft segment, anchor clamps include:

the end face of one end, far away from the second shaft section, of the first shaft section is suitable for abutting against the installation reference surface;

the pressing block is located on one side, provided with the installation reference surface, of the base and spaced from the base, the pressing block is suitable for being sleeved on the second shaft section, the first shaft section is located between the pressing block and the base, and the pressing block is connected with the base through a fastener.

2. The jig for a stepped shaft structure according to claim 1, wherein the base is provided with a positioning hole having the same diameter in an axial direction of the positioning hole.

3. The jig for a stepped shaft structure according to claim 1, wherein the base is provided with a mounting hole, and the mounting hole is a counter-sunk hole.

4. The jig for a stepped shaft structure according to claim 1, wherein the pressing block includes:

the first pressing block and the second pressing block are both formed into a semicircular ring shape, the first pressing block and the second pressing block are spliced together to be sleeved on the second shaft section, and the first pressing block and the second pressing block are both connected with the base through the fastener.

5. The jig for a stepped shaft structure according to claim 1, further comprising:

the holding ring, the holding ring is located the base with between the briquetting, the holding ring is suitable for the cover to be established on the first shaft part, the briquetting the holding ring with the base passes through the fastener is connected.

6. The jig for a stepped shaft structure according to claim 5, wherein a boss is provided on one side of the base, a free end surface of the boss is formed as the mounting reference surface, and the positioning ring is fitted over the boss.

7. The jig for a stepped shaft structure according to claim 6, wherein the positioning ring includes a first positioning section and a second positioning section in an axial direction of the positioning ring, the first positioning section is fitted over the boss, the second positioning section is adapted to be fitted over the first shaft section, and an aperture of the first positioning section is smaller than an aperture of the second positioning section.

8. The jig for a stepped shaft structure according to claim 7, wherein the first positioning segment is provided with a plurality of adjustment holes extending in a radial direction, the plurality of adjustment holes extending through the first positioning segment, and the plurality of adjustment holes are spaced apart in a circumferential direction of the first positioning segment.

9. A machine tool, comprising: the jig for a stepped shaft structure according to any one of claims 1 to 8.