CN215657928U - Three-jaw chuck capable of conveniently replacing clamping jaws - Google Patents
Three-jaw chuck capable of conveniently replacing clamping jaws Download PDFInfo
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- CN215657928U CN215657928U CN202122294529.7U CN202122294529U CN215657928U CN 215657928 U CN215657928 U CN 215657928U CN 202122294529 U CN202122294529 U CN 202122294529U CN 215657928 U CN215657928 U CN 215657928U
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Abstract
The utility model provides a three-jaw chuck for conveniently replacing jaws, which comprises a clamping part and a clamping part, wherein the clamping part comprises a clamping head and a clamping part, and the clamping part comprises: the chuck comprises a chuck body, a clamping part and a clamping part, wherein the chuck body comprises three clamping jaws which are formed by the sliding part and the clamping part; the first sliding part is arranged on the chuck body in a sliding mode, the second sliding part is arranged on the first sliding part along the sliding direction parallel to the first sliding part, and the second sliding part is arranged close to the clamping center of the chuck body; a clamping groove is arranged between the first sliding part and the second sliding part and is vertical to the sliding direction of the first sliding part; an elastic reset piece is arranged between the first sliding part and the second sliding part; the clamping part sequentially comprises a clamping part and a clamping part from bottom to top, and the clamping part is arranged in the sliding groove; the clamping part is used for clamping a workpiece to be clamped; the clamping device utilizes the clamping action of the first sliding part and the second sliding part to meet the requirement of quick replacement of the clamping part, and improves the production efficiency.
Description
Technical Field
The utility model relates to a structure of a clamping part and a clamping part, in particular to a three-jaw chuck capable of conveniently replacing jaws.
Background
The three-jaw chuck is a common clamping and fixing part in the field of machine tools, and is mainly used for machining workpieces with arc surfaces, such as universal joints, hubs, pistons and the like, and is different in machined parts; as shown in fig. 1, in order to satisfy the arc-shaped change, a common three-jaw chuck includes a chuck body, and three jaws including a sliding portion and a clamping portion are formed, wherein the clamping portion is fixed on the sliding portion in a bolt manner, and when an arc-shaped processing surface is changed each time, the bolt is unscrewed again, replaced, and then tightened, which is time-consuming and labor-consuming.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a three-jaw chuck capable of conveniently replacing jaws, which utilizes the clamping action of a first sliding part and a second sliding part to meet the requirement of quickly replacing clamping parts and improve the production efficiency.
The embodiment of the utility model is realized by the following technical scheme: a three-jaw chuck for facilitating replacement of jaws, comprising: the chuck comprises a chuck body, a clamping part and a clamping part, wherein the chuck body comprises three clamping jaws which are formed by the sliding part and the clamping part; the first sliding part is arranged on the chuck body in a sliding mode, the second sliding part is arranged on the first sliding part along the sliding direction parallel to the first sliding part, and the second sliding part is arranged close to the clamping center of the chuck body; a clamping groove is arranged between the first sliding part and the second sliding part and is vertical to the sliding direction of the first sliding part; an elastic reset piece is arranged between the first sliding part and the second sliding part; the clamping part sequentially comprises a clamping part and a clamping part from bottom to top, and the clamping part is arranged in the sliding groove; the clamping part is used for clamping a workpiece to be clamped.
Furthermore, the outer wall of the clamping part is provided with at least N working faces, and N is more than or equal to 3; the clamping groove is a regular M-edge groove, and M is equal to N; the longest distance between two points in the cross section of the regular M-edge groove is positioned between the first sliding part and the second sliding part.
Furthermore, a first cambered surface, a second cambered surface and a third cambered surface are arranged on the outer wall of the clamping part, and the radian of the first cambered surface is sequentially increased; the clamping groove is a regular three-edge groove.
Furthermore, the top of the first sliding part is also provided with a first groove, the bottom of each working surface is provided with a protrusion, and the protrusion is matched with the first groove.
Further, the elasticity piece that resets is equipped with a plurality ofly and every elasticity piece that resets all includes compression spring and connecting rod, is equipped with the second recess that sets up along its slip direction on the first sliding part, and the one end of connecting rod is equipped with outstanding piece and sets up in the second recess, and the other end of connecting rod can be dismantled and connect in second sliding part, and the opening part of recess is equipped with the stopper, and compression spring sets up between outstanding piece and stopper.
Further, the depth of the second groove is more than 3 times of the longest linear length distance of the section of the clamping groove.
Further, the bottom of second sliding part is equipped with the third recess, and third recess intercommunication centre gripping groove, the bottom of joint portion is equipped with cooperation portion, and cooperation portion cooperation third recess sets up.
Furthermore, a pull ring is arranged on the outer side of the second sliding part.
Furthermore, the outer side of the clamping part is provided with a mark.
The technical scheme of the embodiment of the utility model at least has the following advantages and beneficial effects: it utilizes the centre gripping effect of first sliding part and second sliding part to satisfy the quick replacement to the clamping part, has improved production efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of a conventional three-jaw chuck;
fig. 2 is a schematic structural view of a three-jaw chuck for conveniently replacing jaws provided by the utility model;
FIG. 3 is a schematic side view of a first sliding portion and a second sliding portion of a three-jaw chuck for conveniently replacing jaws according to the present invention;
fig. 4 is a schematic top view of a first sliding part and a second sliding part of a three-jaw chuck for conveniently replacing jaws according to the present invention;
fig. 5 is another schematic top view of a first sliding part and a second sliding part of a three-jaw chuck for conveniently replacing jaws provided by the utility model;
FIG. 6 is a cross-sectional view A-A of FIG. 4;
fig. 7 is a schematic structural diagram of an elastic reset piece in a three-jaw chuck for conveniently replacing jaws, provided by the utility model;
FIG. 8 is a schematic structural view of a clamping portion and a clamping portion of a three-jaw chuck for conveniently replacing jaws according to the present invention;
FIG. 9 is a side view of the clamping portion and the clamping portion of a three-jaw chuck for easily replacing the clamping jaws according to the present invention;
icon: 1-chuck body, 2-sliding part, 3-clamping part, 21-first sliding part, 22-second sliding part, 23-pull ring, 24-clamping groove, 25-first groove, 26-third groove, 27-connecting rod, 28-second groove, 29-compression spring, 31-clamping part, 32-clamping part, 33-matching part and 34-protrusion.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the products of the present invention are used, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the device or element which is referred to must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Examples
A three-jaw chuck for easily replacing jaws, as shown in fig. 2, comprising: chuck body 1, by the three jack catch that sliding part 2 and clamping part 3 are constituteed, in this embodiment, the mode of elastic clamping has been changed into to the bolt connection mode of innovation with clamping part 3 and sliding part 2, has improved the efficiency of changing the jack catch greatly.
Specifically, the slide part 2 includes a first slide part 21 and a second slide part 22; the first sliding part 21 is arranged on the chuck body 1 in a sliding manner, the second sliding part 22 is arranged on the first sliding part 21 along the sliding direction parallel to the first sliding part 21, and the second sliding part 22 is arranged close to the clamping center of the chuck body 1; it should be noted that the first sliding portion 21 is slidably disposed on the chuck body 1 by the prior art, and the specific structure is not illustrated in detail, and the second sliding portion 22 slides on the first sliding portion 21 by means of the slide and the sliding slot, as shown in fig. 3.
A clamping groove 24 is arranged between the first sliding part 21 and the second sliding part 22, and the clamping groove 24 is vertical to the sliding direction of the first sliding part 21; here, the purpose of the vertical arrangement of the holding groove 24 is that the working surface in the holding groove 24 is a side wall, and the vertical arrangement is required in order that the side wall can also work effectively by the sliding action of the sliding portion 2.
An elastic reset piece is arranged between the first sliding part 21 and the second sliding part 22; the elastic reset piece is used for ensuring that the clamping groove 24 is kept in an original state, so that the clamping part 3 is clamped, specifically, the clamping part 3 sequentially comprises a clamping part 31 and a clamping part 32 from bottom to top, and the clamping part 31 is arranged in the clamping groove 24; the clamping portion 32 is used to clamp a workpiece to be clamped.
It should be noted that, in this embodiment, 3 working surfaces, which are a first arc surface, a second arc surface and a third arc surface with sequentially increasing radians, are arranged on the outer wall of the clamping portion 32; at this time, the holding groove 24 is a regular three-sided groove, and the longest distance between two points in the cross section of the regular three-sided groove is located between the first sliding portion 21 and the second sliding portion 22, as shown in fig. 4, and in addition, if there are 6 working faces in other embodiments, the holding groove 24 is located in a regular six-sided groove, as shown in fig. 5, and the longest distance is located between the first sliding portion 21 and the second sliding portion 22; the purpose that sets up like this is to guarantee that joint portion 31 can be nimble and convenient place in centre gripping groove 24, the change of being convenient for.
The working principle is that the clamping part 32 clamps the workpiece, and at the moment, the stress of the clamping part 32 of the workpiece is parallel to the sliding direction of the sliding part 2, so that the force transmission of the clamping part 32 to the second sliding part 22 is transmitted through the side wall of the clamping groove, then the first sliding part 21 is transmitted, and finally the chuck body 1 is provided, so that the effectiveness of the whole clamping stress is ensured; the multi-deformation clamping groove 24 is also used for placing the self-rotation movement of the clamping part 3 and ensuring the clamping effectiveness.
Of course, in some embodiments, in order to further improve the clamping effectiveness, as shown in fig. 8, the self-rotation of the clamping portion 3 is placed, so that a first groove 25 is further provided at the top of the first sliding portion 21, a protrusion 34 is provided at the bottom of each working surface, and the protrusion 34 is provided to cooperate with the first groove 25, preferably, the first groove 25 is an elongated groove, and a great resistance is provided to the self-rotation of the clamping portion 3 through cooperation of the first groove 25 and the protrusion 34, so as to further prevent the self-rotation thereof; it should also be noted that the specific location of the protrusion 34 should not affect the installation effect.
Furthermore, the bottom of the second sliding portion 22 is provided with a third groove 26, the third groove 26 is communicated with the clamping groove 24, as shown in fig. 9, the bottom of the clamping portion 31 is provided with a matching portion 33, and the matching portion 33 is matched with the third groove 26; through the arrangement of the third groove 26 and the matching part 33, the clamping part 3 is ensured not to swing, and the clamping integrity and effectiveness are ensured.
For the elastic restoring member in this embodiment, in some embodiments, a strong magnet may be used, and of course, in this embodiment, the following arrangement is adopted: as shown in fig. 7, the elastic restoring member is provided with a plurality of elastic restoring members, each of the elastic restoring members includes a compression spring 29 and a link 27, the first sliding portion 21 is provided with a second groove 28 arranged along the sliding direction thereof, one end of the link 27 is provided with a protruding block and arranged in the second groove 28, the other end of the link 27 is detachably connected to the second sliding portion 22, a limit block is arranged at an opening of the groove, and the compression spring 29 is arranged between the protruding block and the limit block; that is, by the compression of the compression spring 29 in the second recess 28, the second sliding portion 22 is pulled out, the compression spring is restored, the holding groove 24 is restored, and the engaging portion 31 is clamped, so that the third recess 26 and the engaging portion 33 are engaged.
Further, in the present embodiment, a pull ring 23 is provided on the outer side of the second sliding portion 22, and the pull ring 23 assists the operator to pull out the second sliding portion 22; in addition, the outer side of the clamping part 32 is provided with a mark, and the working surface is identified through the mark; the depth of the second groove 28 is more than 3 times of the longest linear length distance of the section of the clamping groove 24, and the strength requirement is ensured.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A three-jaw chuck for facilitating replacement of jaws, comprising: chuck body (1), three jack catch, its characterized in that of constituteing by sliding part (2) and clamping part (3):
the sliding part (2) comprises a first sliding part (21) and a second sliding part (22); the first sliding part (21) is arranged on the chuck body (1) in a sliding mode, the second sliding part (22) is arranged on the first sliding part (21) along the sliding direction parallel to the first sliding part (21), and the second sliding part (22) is arranged close to the clamping center of the chuck body (1);
a clamping groove (24) is formed between the first sliding part (21) and the second sliding part (22), and the clamping groove (24) is perpendicular to the sliding direction of the first sliding part (21); an elastic reset piece is arranged between the first sliding part (21) and the second sliding part (22);
the clamping part (3) sequentially comprises a clamping part (31) and a clamping part (32) from bottom to top, and the clamping part (31) is arranged in the clamping groove; the clamping portion (32) is used for clamping a workpiece to be clamped.
2. The three-jaw chuck for conveniently replacing the clamping jaws as claimed in claim 1, wherein at least N working faces are arranged on the outer wall of the clamping part (32), and N is more than or equal to 3; the clamping groove (24) is a regular M-edge groove, and M is equal to N; the longest distance between two points in the cross section of the regular M-shaped groove is positioned between the first sliding part (21) and the second sliding part (22).
3. The three-jaw chuck for conveniently replacing the clamping jaws as claimed in claim 2, wherein the outer wall of the clamping part (32) is provided with a first arc surface, a second arc surface and a third arc surface which are sequentially increased in radian; the clamping groove (24) is a regular three-edge groove.
4. The three-jaw chuck for easily replacing the jaws according to claim 3, wherein the first sliding portion (21) is further provided with a first groove (25) at the top thereof, and a protrusion (34) is provided at the bottom of each working surface, and the protrusion (34) is disposed to be engaged with the first groove (25).
5. The three-jaw chuck for replacing the clamping jaws conveniently and rapidly as claimed in claim 1, wherein the elastic restoring member is provided in plurality and each of the elastic restoring members comprises a compression spring (29) and a connecting rod (27), the first sliding portion (21) is provided with a second groove (28) arranged along the sliding direction of the first sliding portion, one end of the connecting rod (27) is provided with a protruding block and arranged in the second groove (28), the other end of the connecting rod (27) is detachably connected to the second sliding portion (22), a limiting block is arranged at the opening of the groove, and the compression spring (29) is arranged between the protruding block and the limiting block.
6. The three-jaw chuck for facilitating the replacement of the jaws as set forth in claim 5, characterized in that the depth of the second groove (28) is greater than 3 times the longest linear length of the cross-section of the holding groove (24).
7. The three-jaw chuck for easily replacing jaws according to claim 2, wherein a third groove (26) is formed at the bottom of the second sliding portion (22), the third groove (26) communicates with the clamping groove, and an engaging portion (33) is formed at the bottom of the clamping portion (31), and the engaging portion (33) is engaged with the third groove (26).
8. The three-jaw chuck for easily replacing jaws according to claim 1, wherein the second sliding portion (22) is provided at an outer side thereof with a pull ring (23).
9. Three-jaw chuck for the easy replacement of the jaws according to claim 1, characterised in that the outer side of the clamping portion (32) is provided with a marking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122294529.7U CN215657928U (en) | 2021-09-18 | 2021-09-18 | Three-jaw chuck capable of conveniently replacing clamping jaws |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122294529.7U CN215657928U (en) | 2021-09-18 | 2021-09-18 | Three-jaw chuck capable of conveniently replacing clamping jaws |
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| Publication Number | Publication Date |
|---|---|
| CN215657928U true CN215657928U (en) | 2022-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122294529.7U Active CN215657928U (en) | 2021-09-18 | 2021-09-18 | Three-jaw chuck capable of conveniently replacing clamping jaws |
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| Country | Link |
|---|---|
| CN (1) | CN215657928U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115095586A (en) * | 2022-07-29 | 2022-09-23 | 岚图汽车科技有限公司 | Guard plate bolt locking mechanism at bottom of car |
-
2021
- 2021-09-18 CN CN202122294529.7U patent/CN215657928U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115095586A (en) * | 2022-07-29 | 2022-09-23 | 岚图汽车科技有限公司 | Guard plate bolt locking mechanism at bottom of car |
| CN115095586B (en) * | 2022-07-29 | 2023-05-26 | 岚图汽车科技有限公司 | Automobile bottom guard board bolt locking mechanism |
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