CN213410354U - Adjustable self-positioning turning clamp - Google Patents
Adjustable self-positioning turning clamp Download PDFInfo
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- CN213410354U CN213410354U CN202021499651.7U CN202021499651U CN213410354U CN 213410354 U CN213410354 U CN 213410354U CN 202021499651 U CN202021499651 U CN 202021499651U CN 213410354 U CN213410354 U CN 213410354U
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Abstract
The utility model discloses an adjustable self-positioning turning clamp, which consists of an expansion sleeve, a clamp body and a connecting rod, wherein a pull rod at the rear end of the expansion sleeve passes through the clamp body to be fixedly connected with the connecting rod, the top pressure of a clamp top at the front end of the clamp body is pressed in the expansion sleeve to realize tension clamping, the rear end face of a workpiece is propped against the positioning end face at the front end of the clamp body to realize positioning, and an adjusting mechanism is arranged at the front end of the clamp body; the adjusting mechanism is formed by matching and fixedly connecting front and rear spherical surfaces of a concave spherical head base plate and a convex spherical head end cover; the positioning end face is arranged at the front end of the concave ball head base plate; the rear sleeve of the convex ball end cover is slidably sleeved in the annular chute of the fixture body, and the convex ball end cover is fixedly connected with the fixture body after the axial position between the convex ball end cover and the fixture body is adjusted according to workpieces with different axial sizes. The utility model discloses can realize location terminal surface axial automatically regulated, and the location terminal surface can realize the sphere from the location.
Description
Technical Field
The utility model belongs to the technical field of the turning anchor clamps, concretely relates to self-align turning anchor clamps with adjustable.
Background
When a part is machined by a numerical control lathe, the end face of the part often needs to be turned, and in the process of turning the end face of the part, strict technological requirements on jumping and coaxiality exist.
In the prior art, the turning clamping mode has two kinds:
one is that the traditional adoption three-jaw anchor clamps utilize the turning clamping mode of three point location to press from both sides tight fixedly at the external diameter at zero point, but, because three-jaw anchor clamps are restricted the cutter selection and install, lead to unable to carry out lathe work to the spare medial surface, and have obvious connects the sword vestige at the part external diameter, in addition, adopt three-jaw location mode processing part, the part can be because vibration, clamping error or anchor clamps are not hard up the reason production displacement, influences the machining precision of part.
The other clamping mode is clamping by adopting an expanding sleeve clamp, the expanding sleeve clamping mode is used for positioning and clamping the part by taking the inner hole of the part as a reference, so that the interference limitation between an outer side clamping clamp and a cutter is avoided, the end face turning of the part can be smoothly realized, the turning process is in place in one step when the outer side face of the part is processed, no tool receiving trace exists, and the surface quality of the processed part is improved; however, the positioning end faces of the existing expansion sleeve clamping fixture are relatively fixed, and the existing expansion sleeve clamping fixture is only suitable for machining parts with a certain axial dimension, for example, when parts with different axial dimensions are replaced, the fixture needs to be replaced, so that parts with different lengths and different thicknesses cannot be machined by the same fixture, the fixture universality is poor, the number of fixtures is increased, the machining cost is increased, and the working efficiency is reduced.
Disclosure of Invention
To the defect that exists among the above-mentioned prior art, the utility model discloses a self-align turning anchor clamps with adjustable realizes location terminal surface axial automatically regulated, and the location terminal surface can realize the sphere from the location. With the attached drawings, the technical scheme of the utility model is as follows:
the utility model provides a self-align turning anchor clamps with adjustable comprises the cover that rises, anchor clamps body and connecting rod, and the cover rear end pull rod that rises passes the anchor clamps body and links firmly with the connecting rod, and anchor clamps body front end anchor clamps top pressure realizes rising the centre gripping in rising the cover, and the work piece rear end face top is leaned on realizing the location on the location terminal surface of anchor clamps body front end, its characterized in that:
the front end of the clamp body is provided with an adjusting mechanism;
the adjusting mechanism is formed by matching and fixedly connecting front and rear spherical surfaces of a concave spherical head base plate and a convex spherical head end cover;
the positioning end face is arranged at the front end of the concave ball head base plate;
the rear sleeve of the convex ball end cover is slidably sleeved in the annular chute of the fixture body, and the convex ball end cover is fixedly connected with the fixture body after the axial position between the convex ball end cover and the fixture body is adjusted according to workpieces with different axial sizes.
Furthermore, bolt connecting holes are formed in the outer side wall of the annular sliding groove of the clamp body;
key grooves are uniformly formed in the side wall of the sleeve of the convex ball head end cover;
the connecting bolt penetrates through the bolt connecting hole of the clamp body and is fixed in the key groove of the convex ball end cover, and the clamp body is fixedly connected with the convex ball end cover.
Further, the number of key grooves is twice as many as the number of bolt coupling holes.
Furthermore, the front end of the connecting rod is provided with a connector which is positioned in a positioning groove at the rear end of the clamp body;
the end face of the connector is provided with an internal threaded hole and is fixedly connected with the pull rod at the rear end of the expansion sleeve in a threaded manner.
Further, the clamp top head at the front end of the clamp body is conical.
Furthermore, bolt holes are formed in the outer sides of the circumferences of the end faces of the concave ball head base plate and the convex ball head end cover, and the concave ball head base plate and the convex ball head end cover are fixedly connected through connecting bolts.
Furthermore, the clamp body is provided with bolt holes in the circumferential direction and is connected with a flange plate of a machine tool spindle through bolts.
Furthermore, the tensioning end at the front end of the expansion sleeve 1 is formed by bonding and connecting 6-8 connecting sheets.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. adjustable self-align turning anchor clamps is through offering axial keyway at the outer peripheral surface of convex surface bulb end cover to realize the fixed connection of convex surface bulb end cover and anchor clamps body through the bolt, realize axial position's between convex surface bulb end cover and the anchor clamps body regulation, and then realize the distance between convex surface bulb end cover front end location terminal surface and the part location terminal surface and adjust, with the part location clamping that the adaptation length differs, the unequal axial dimensions of thickness.
2. Adjustable self-positioning turning clamp adopts the spherical surface structure phase-match to realize from centering between convex surface bulb end cover and the concave surface bulb backing plate to guarantee the positioning accuracy and the beating of terminal surface.
Drawings
Fig. 1 is an exploded view of the adjustable self-positioning turning fixture of the present invention;
figure 2 is the adjustable self-align turning anchor clamps and work piece cooperation sketch map.
In the figure:
1-expansion sleeve, 2-concave spherical head backing plate, 3-first connecting bolt,
4-convex spherical end cover, 5-second connecting bolt, 6-clamp body,
7-connecting rod, 8-workpiece, 9-counter bore,
10-a pull rod, 11-a connector, 12-a mounting groove,
13-clamp top, 14-guide post, 15-guide groove,
16-keyway.
Detailed Description
For clear and complete description of the technical solution and the specific working process of the present invention, the following embodiments are provided in conjunction with the accompanying drawings of the specification:
in the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., 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 invention. In this specification, the schematic representations of the terms used above are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The utility model provides a self-align turning anchor clamps with adjustable, as shown in figure 1 and figure 2, include: connecting rod 7, anchor clamps body 6, convex surface bulb end cover 4, concave surface bulb backing plate 2 and the cover 1 that rises.
The rear end of the connecting rod 7 is provided with threads for being fixedly connected with a lathe spindle, the front end of the connecting rod 7 is provided with a cylindrical connector 11, the end part of the connector 11 is matched with the rear end of the clamp body 6, and an inner threaded hole is formed in the front end face of the connector 11 along the axial direction to realize the threaded fixed connection of the pull rod 10 arranged at the rear end of the expansion sleeve 1.
In the jig body 6:
the clamp body 6 is provided with a through hole which penetrates forwards and backwards along the axial direction so as to allow a pull rod 10 arranged at the rear end of the expansion sleeve 1 to penetrate through;
the rear end of the clamp body 6 is connected with a flange of a lathe spindle in a matched mode, wherein a positioning boss is arranged at the rear end of the clamp body 6 to achieve matched positioning with the flange, and a plurality of countersunk holes 9 are uniformly formed in the side face of the outer circumference of the clamp body 6 along the circumferential direction to achieve fixed connection with the flange through bolts;
the rear end face of the clamp body 6 is provided with a mounting groove 12, and a connector 11 at the front end of the connecting rod 7 is mounted in the mounting groove 12 in a matching manner;
the front end of the clamp body 6 is coaxially provided with a guide post 14;
a circle of annular guide groove 15 is coaxially formed in the circumferential outer side of the guide post 14 along the axial direction, and four second bolt holes are uniformly formed in the side wall of the clamp body 6 corresponding to the radial outer side of the guide groove 15;
the front end of the guide post 14 is coaxially provided with a clamp ejector 13, the clamp ejector 13 is ejected to the inner side of the expansion sleeve 1, the clamp ejector 13 is conical, the conical clamp ejector 13 can improve the matching precision with the expansion sleeve 1, and the conical clamp ejector 13 can better bear force with the expansion sleeve 1.
The rear end of the convex ball end cover 4 is a cylindrical sleeve, eight axial key grooves 16 are distributed on the outer surface of the sleeve along the circumferential direction, the convex ball end cover 4 is connected with the guide groove 15 on the clamp body 6 in a sliding fit mode through the sleeve, four second bolt holes in the side wall of the clamp body 6 correspond to four key grooves 16 in the eight axial key grooves 16, and after the axial relative position between the convex ball end cover 4 and the clamp body 6 is adjusted, a second connecting bolt 5 penetrates through a second bolt hole in the clamp body 6 and is correspondingly and fixedly locked in the key groove 16 on the convex ball end cover 4, so that the clamp body 6 and the convex ball end cover 4 are fixed in the opposite direction;
by adopting the fact that four second bolt holes in the clamp body 6 correspond to eight axial key grooves 16 in the convex ball end cover 4, after the clamp body 6 and the convex ball end cover 4 rotate, the corresponding key grooves 16 in the second bolt holes can correspond to the corresponding key grooves all the time;
the front end face of the convex ball end cover 4 is a convex spherical surface, a through hole is formed in the center of the front end face of the convex ball end cover 4 for the pull rod 10 arranged at the rear end of the expansion sleeve 1 to penetrate through, and six second bolt holes are uniformly distributed in the circumferential direction on the outer side of the circumference of the front end of the convex ball end cover 4.
A through hole is formed in the center of the concave ball head base plate 2, so that a pull rod 10 arranged at the rear end of the expansion sleeve 1 can penetrate through the through hole;
the rear end face of the concave ball head base plate 2 is an inwards concave spherical surface matched with the front end face of the convex ball head end cover 4, bolt counter bores are formed in the outer side of the circumference of the end face of the concave ball head base plate 2, and after the rear end face of the concave ball head base plate 2 is matched and positioned with the front end face of the convex ball head end cover 4, the concave ball head base plate 2 and the convex ball head end cover 4 are fixedly connected through a first connecting bolt 3;
the front end face of the concave ball head base plate 2 is a workpiece positioning end face, and the axial position of the workpiece positioning end face of the concave ball head base plate 2 can be adjusted by adjusting the axial relative position between the convex ball head end cover 4 and the clamp body 6, so that matching positioning with workpieces with different axial sizes is realized.
The front end of the expansion sleeve 1 is formed by connecting 6-8 connecting sheets through rubber bonding, and is connected with a tensioning end matched with a workpiece reference inner hole, the rear end of the expansion sleeve 1 is provided with a pull rod 10 coaxially and fixedly connected with the expansion sleeve end, an external thread is machined at the tail of the pull rod 10, the pull rod sequentially penetrates through the concave ball head base plate 2, the convex ball head end cover 4 and the clamp body 6 and is fixedly connected with a connector 11 at the front end of the connecting rod 7 through a coaxial thread, the tension of a machine tool spindle is transmitted to the expansion sleeve 1 through the connecting rod 7, the tensioning end of the expansion sleeve 1 is tensioned in an inner hole of the workpiece 8, and clamping on the workpiece 8 is realized through tensioning force.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
The above description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the claims of the present invention.
Claims (8)
1. The utility model provides a self-align turning anchor clamps with adjustable comprises the cover that rises, anchor clamps body and connecting rod, and the cover rear end pull rod that rises passes the anchor clamps body and links firmly with the connecting rod, and anchor clamps body front end anchor clamps top pressure realizes rising the centre gripping in rising the cover, and the work piece rear end face top is leaned on realizing the location on the location terminal surface of anchor clamps body front end, its characterized in that:
the front end of the clamp body is provided with an adjusting mechanism;
the adjusting mechanism is formed by matching and fixedly connecting front and rear spherical surfaces of a concave spherical head base plate and a convex spherical head end cover;
the positioning end face is arranged at the front end of the concave ball head base plate;
the rear sleeve of the convex ball end cover is slidably sleeved in the annular chute of the fixture body, and the convex ball end cover is fixedly connected with the fixture body after the axial position between the convex ball end cover and the fixture body is adjusted according to workpieces with different axial sizes.
2. The adjustable self-positioning turning fixture of claim 1, wherein:
the outer side wall of the annular chute of the clamp body is provided with bolt connecting holes;
key grooves are uniformly formed in the side wall of the sleeve of the convex ball head end cover;
the connecting bolt penetrates through the bolt connecting hole of the clamp body and is fixed in the key groove of the convex ball end cover, and the clamp body is fixedly connected with the convex ball end cover.
3. The adjustable self-positioning turning fixture of claim 2, wherein:
the number of the key grooves is twice that of the bolt connecting holes.
4. The adjustable self-positioning turning fixture of claim 1, wherein:
the front end of the connecting rod is provided with a connector which is positioned in a positioning groove at the rear end of the clamp body;
the end face of the connector is provided with an internal threaded hole and is fixedly connected with the pull rod at the rear end of the expansion sleeve in a threaded manner.
5. The adjustable self-positioning turning fixture of claim 1, wherein:
the fixture top at the front end of the fixture body is conical.
6. The adjustable self-positioning turning fixture of claim 1, wherein:
the concave ball head base plate and the convex ball head end cover are fixedly connected through connecting bolts.
7. The adjustable self-positioning turning fixture of claim 1, wherein:
the clamp body is provided with bolt holes in the circumferential direction and is connected with a flange plate of a machine tool spindle through bolts.
8. The adjustable self-positioning turning fixture of claim 1, wherein:
the tensioning end at the front end of the expansion sleeve is formed by bonding and connecting 6-8 connecting sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021499651.7U CN213410354U (en) | 2020-07-27 | 2020-07-27 | Adjustable self-positioning turning clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021499651.7U CN213410354U (en) | 2020-07-27 | 2020-07-27 | Adjustable self-positioning turning clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213410354U true CN213410354U (en) | 2021-06-11 |
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ID=76255020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021499651.7U Active CN213410354U (en) | 2020-07-27 | 2020-07-27 | Adjustable self-positioning turning clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213410354U (en) |
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2020
- 2020-07-27 CN CN202021499651.7U patent/CN213410354U/en active Active
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