CN210524537U - Automatic positioning and clamping mechanism for inner hole of workpiece - Google Patents
Automatic positioning and clamping mechanism for inner hole of workpiece Download PDFInfo
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- CN210524537U CN210524537U CN201921358128.XU CN201921358128U CN210524537U CN 210524537 U CN210524537 U CN 210524537U CN 201921358128 U CN201921358128 U CN 201921358128U CN 210524537 U CN210524537 U CN 210524537U
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Abstract
The utility model discloses a work piece hole automatic positioning clamping mechanism, a serial communication port, include: the device comprises a starting mechanism, a driving mechanism and a centering assembly; the starting mechanism is connected with the driving mechanism and is used for opening or closing the driving mechanism; the driving mechanism is connected with the centering assembly and is used for driving the centering assembly to clamp or loosen the inner hole of the workpiece; the centering assembly is used for positioning the workpiece when the outer circle of the workpiece is centered and machined in the inner hole; the problem of the lathe work piece of casting and forging, when centering processing in the inner hole the excircle of work piece is alignment location difficult is solved.
Description
Technical Field
The utility model relates to a positioning and clamping mechanism of work piece during turning, exactly it is exactly a work piece hole automatic positioning and clamping mechanism.
Background
In the field of machining, particularly when a large casting and forging piece is used for machining a hole in a center or an outer circle, because the size of a blank of the casting and forging piece is not very standard, when a workpiece is turned and clamped, the blank is often difficult to line and align, a lower inner hole is sometimes required to be roughly machined, or the outer circle or an end face of the turned inner hole is also required to be machined, so that the workpiece can be clamped again for aligning and aligning the center, the labor intensity of an operator is increased, the labor efficiency is reduced, and particularly in the production and machining of batch workpieces, the machining efficiency is low and the labor intensity is high.
Disclosure of Invention
In view of the above, the present invention provides an automatic positioning and clamping mechanism for inner holes of workpieces; the problem of the lathe work piece of casting and forging, when centering processing in the inner hole the excircle of work piece is alignment location difficult is solved.
In order to achieve the above object, the present invention provides an automatic positioning and clamping mechanism for inner holes of workpieces, which is characterized in that the automatic positioning and clamping mechanism comprises:
the device comprises a starting mechanism, a driving mechanism and a centering assembly;
the starting mechanism is connected with the driving mechanism and is used for opening or closing the driving mechanism;
the driving mechanism is connected with the centering assembly and is used for driving the centering assembly to clamp or loosen the inner hole of the workpiece;
the centering assembly is used for positioning the workpiece when the outer circle of the workpiece is centered and machined in the inner hole.
Preferably, the actuating mechanism comprises: a wedge clamping mechanism and a push rod;
the inclined wedge clamping mechanism is connected with the push rod;
the push rod transmits pushing force to the wedge clamping mechanism;
the pushing force acts on the wedge clamping mechanism to generate clamping force;
the clamping force is used for opening the driving mechanism.
Preferably, the wedge clamping mechanism comprises a positioning inclined sleeve and at least two steel balls;
the steel balls are uniformly distributed along the circumferential direction of the positioning inclined sleeve;
the inner wall of the positioning inclined sleeve is an inclined conical surface and is provided with a central hole;
the push rod is connected with the central hole;
the push rod transmits the pushing force to the positioning inclined sleeve;
the pushing force is decomposed through the inclined conical surface of the positioning inclined sleeve to generate the clamping force applied to the steel ball.
Preferably, the drive mechanism comprises: the positioning pad, the first driving slide block, the elastic piece and the pull rod are arranged on the positioning pad;
the positioning pad, the first driving sliding block and the elastic piece are sequentially connected to the pull rod from bottom to top;
a wedge-shaped gap is formed between the positioning pad and the first driving sliding block;
the steel ball is connected with the wedge-shaped notch,
the wedge-shaped notch transmits the clamping force applied to the steel ball to the first driving slide block;
the first driving slide block moves upwards along the pull rod under the action of the clamping force;
the first driving slide block is uniformly distributed with inclined plane structures in the circumferential direction;
the inclined plane structure is connected with the centering assembly;
the first driving slide block moves upwards, and the inclined surface structure drives the centering assembly to clamp the inner hole of the workpiece;
the elastic piece is used for resetting the first driving slide block when the clamping force is removed.
Preferably, the centering assemblies have at least two sets;
the drive mechanism further comprises: a second driving slider;
the second driving slide block is connected to the pull rod and moves up or down along the pull rod under the action of the clamping force;
the second driving slide block is uniformly distributed with inclined plane structures in the circumferential direction;
the inclined surface structure is connected with one set of the centering components;
the second driving slide block moves up or down, and the inclined surface structure drives the centering assembly to clamp the workpiece inner hole.
Preferably, the centering assembly comprises: at least two first ejector rods and return springs with the same number;
the inclined surface structure of the first driving slide block drives the first ejector rod to clamp the inner hole of the workpiece along the radial direction;
the reset spring is connected with the first ejector rod and used for resetting the first ejector rod.
Preferably, the centering assembly further comprises: at least two second ejector rods;
and the inclined surface structure of the second driving slide block drives the second ejector rod to clamp the inner hole of the workpiece along the radial direction.
Preferably, the actuating mechanism further comprises: positioning seats;
the positioning seat is connected to a chuck seat of the turning machining tool and used for centering and fixing the positioning inclined sleeve.
Preferably, the driving mechanism further includes: a supporting seat;
the supporting seat is provided with a central hole;
the pull rod is arranged on the central line of the central hole.
Preferably, the second driving slider is located above the spring;
the inclined plane structures of the second driving sliding block and the first driving sliding block are opposite to each other.
The utility model discloses following beneficial effect has:
the utility model discloses work piece hole automatic positioning clamping mechanism, through the motion of inside push rod, drive built-in steel ball under the wedge breach effect rather than the contact, two sets of centering subassemblies move to the work piece hole about driving, and centering subassembly is work piece evenly distributed on same circumference, the automatic positioning clamp tight of work piece hole has just so been realized, unnecessary blank processing and marking off have been reduced, process such as alignment, the intensity of labour of having solved the operator with improved the machining efficiency of work piece, especially can improve production efficiency greatly in batch production.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural view of a workpiece inner hole automatic positioning and clamping mechanism according to an embodiment of the present invention.
Detailed Description
The present invention will be described below based on examples, but it should be noted that the present invention is not limited to these examples. In the following detailed description of the present invention, certain specific details are set forth in detail. However, for parts not described in detail, those skilled in the art can fully understand the present invention.
Furthermore, those skilled in the art will appreciate that the drawings are provided for purposes of illustrating the objects, features, and advantages of the invention and are not necessarily drawn to scale.
Also, unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, the meaning of "includes but is not limited to".
Fig. 1 is a schematic structural view of a workpiece inner hole automatic positioning and clamping mechanism according to an embodiment of the present invention. As shown in fig. 1, an automatic positioning and clamping mechanism for inner holes of workpieces comprises: the device comprises a starting mechanism, a driving mechanism and a centering assembly; the starting mechanism is connected with the driving mechanism and is used for opening or closing the driving mechanism; the driving mechanism is connected with the centering assembly and is used for driving the centering assembly to clamp or loosen an inner hole of a workpiece; and the centering assembly is used for positioning the workpiece when the outer circle of the workpiece is centered and machined in the inner hole.
In fig. 1, the actuating mechanism comprises: a wedge clamping mechanism and a push rod 12; the wedge clamping mechanism is connected with the push rod 12; the push rod 12 transmits pushing force to the inclined wedge clamping mechanism; the pushing force acts on the wedge clamping mechanism to generate clamping force; the clamping force is used to open the drive mechanism.
In fig. 1, the wedge clamping mechanism comprises a positioning inclined sleeve 10 and at least two steel balls 9, wherein the steel balls 9 are uniformly distributed along the circumferential direction of the positioning inclined sleeve 10; the positioning inclined sleeve 10 is provided with an inclined conical surface on the inner wall and a central hole; the push rod 12 is connected with the central hole; the push rod 12 transmits pushing force to the positioning inclined sleeve 10; the pushing force is decomposed by the inclined conical surface of the positioning inclined sleeve 10 to generate a clamping force applied to the steel ball 9.
The number of steel balls 9 is preferably three.
In fig. 1, a drive mechanism includes: a positioning pad 8, a first driving slide block 7, an elastic piece and a pull rod 5; the positioning pad 8, the first driving slide block 7 and the elastic piece are sequentially connected to the pull rod 5 from bottom to top; a wedge-shaped gap is arranged between the positioning pad 8 and the first driving slide block 7; the steel ball 9 is connected with the wedge-shaped gap, and the wedge-shaped gap transmits the clamping force applied to the steel ball 9 to the first driving slide block 7; the first driving slide 7 moves upwards along the pull rod 5 under the action of clamping force; the first driving slide block 7 is circumferentially and uniformly distributed with an inclined plane structure; the inclined plane structure is connected with the centering assembly; the first driving slide block 7 moves upwards, and the inclined plane structure top drives the centering assembly to clamp the inner hole of the workpiece; the elastic element serves to reset the first drive slide 7 when the clamping force is removed.
Preferably the resilient member is a spring 6.
In fig. 1, the centering assemblies have at least two sets; the drive mechanism further includes: a second driving slider 4; the second driving slide block 4 is connected to the pull rod 5 and moves up or down along the pull rod 5 under the action of clamping force; the second driving slide block 4 is uniformly distributed with an inclined plane structure in the circumferential direction; the bevel structure is connected with one set of centering components; the second driving slide block 4 moves up or down, and the inclined plane structure top drives the centering assembly to clamp the inner hole of the workpiece.
In fig. 1, a centering assembly, comprising: at least two first top rods 2 and return springs 14 with the same number; the inclined surface structure of the first driving slide block 7 drives the first ejector rod 2 to clamp the inner hole of the workpiece along the radial direction; and the return spring 14 is connected with the first ejector rod 2 and is used for returning the first ejector rod 2.
The number of the first push rods 2 is preferably 3.
In fig. 1, the centering assembly, further comprises: at least two second top rods 1; the inclined plane structure of the second driving slide block 4 drives the second ejector rod 1 to clamp the inner hole of the workpiece along the radial direction.
Preferably, the number of the second push rods is 3.
In fig. 1, the actuating mechanism further includes: a positioning seat 11; the positioning seat 11 is connected to a chuck seat 13 of the turning processing tool and used for centering and fixing the positioning inclined sleeve 10.
In fig. 1, the drive mechanism further includes: a support base 3; the supporting seat 3 is provided with a central hole; the pull rod 5 is placed on the center line of the center hole.
In fig. 1, the second drive slider 4 is located above the spring 6; the inclined plane structures of the second driving slide block 4 and the first driving slide block 7 are opposite to each other.
Specifically, the action relationship of each component of the workpiece inner hole automatic positioning and clamping mechanism structure of the present invention during operation is explained with reference to fig. 1:
the automatic positioning and clamping mechanism for the inner hole of the workpiece is arranged on a chuck seat 13 of a lathe, the inner hole of the workpiece is arranged on the clamping mechanism when the workpiece is clamped, a push rod 12 is pushed upwards through external force, the upper end surface of the push rod 12 is contacted with the lower end surface of a positioning inclined sleeve 10, the positioning inclined sleeve 10 moves upwards along with the upper end surface, the positioning inclined sleeve 10 moving upwards simultaneously extrudes 3 steel balls 9 uniformly distributed on the same circumference to move inwards, the steel balls 9 extrude wedge-shaped gaps, under the action of extrusion force of the steel balls 9, a first driving slide block 7 forming the upper inclined surface of the wedge-shaped gaps moves upwards, and the inclined surface structure of the first driving slide block 7 is contacted with the inclined surface of a first ejector rod 2 (3 pieces uniformly distributed on the circumference) to drive the first ejector rod 2 to move outwards to clamp the workpiece;
meanwhile, under the action of the extrusion force of the steel ball 9, the positioning pad 8 forming the lower inclined plane of the wedge-shaped gap moves downwards, the positioning pad 8 drives the pull rod 5 connected with the positioning pad, the second driving slide block 4 connected with the positioning pad is pulled to move downwards, the second ejector rod 1 moves outwards to contact with the inner hole wall of the workpiece to clamp the workpiece through the inclined plane structure of the second driving slide block 4 and the inclined plane action of the second ejector rod 1 (3 pieces are uniformly distributed on the same circumference), and thus the workpiece is directly positioned and clamped in the inner hole, so that the outer circle is processed conveniently.
On the contrary, when the push rod 12 is pulled downwards, the spring 6 makes the first driving slide block 7 move downwards, the extrusion steel ball 9 moves outwards, the positioning pad 8 also moves upwards, the first ejector rod 1 and the second ejector rod 2 move inwards in a reset mode through the spring 14, and the workpiece is loosened.
Because the positioning seat 11 is positioned on the chuck seat 13, the second driving slide block 4 and the first driving slide block 7 can slide in the supporting seat 3, so that the mechanism can realize the centering and positioning of the inner hole of the workpiece, and when the outer circle of the workpiece is processed, the problems of non-centering and poor alignment of the outer circle processed by centering the inner hole are solved.
The workpiece inner hole automatic positioning and clamping mechanism is convenient to clamp, and when the excircle of the workpiece is machined, the inner hole does not need to be machined firstly for alignment, marking, centering and positioning, so that the labor intensity of an operator is reduced, the efficiency is increased, and the workpiece inner hole automatic positioning and clamping mechanism is suitable for batch production and automatic production and machining.
The above-mentioned embodiments are merely embodiments for expressing the invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several changes, substitutions, modifications, etc. can be made without departing from the spirit of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (9)
1. The utility model provides a work piece hole automatic positioning clamping mechanism which characterized in that includes:
the device comprises a starting mechanism, a driving mechanism and a centering assembly;
the starting mechanism is connected with the driving mechanism and is used for opening or closing the driving mechanism;
the driving mechanism is connected with the centering assembly and is used for driving the centering assembly to clamp or loosen the inner hole of the workpiece;
the centering assembly is used for positioning the workpiece when the outer circle of the workpiece is centered and machined in the inner hole.
2. The automatic positioning and clamping mechanism for the inner hole of the workpiece as recited in claim 1, wherein:
the actuating mechanism includes: a wedge clamping mechanism and a push rod (12);
the wedge clamping mechanism is connected with the push rod (12);
the push rod (12) transmits pushing force to the wedge clamping mechanism;
the pushing force acts on the wedge clamping mechanism to generate clamping force;
the clamping force is used for opening the driving mechanism.
3. The automatic positioning and clamping mechanism for the inner hole of the workpiece as recited in claim 2, wherein:
the wedge clamping mechanism comprises a positioning inclined sleeve (10) and at least two steel balls (9);
the steel balls (9) are uniformly distributed along the circumferential direction of the positioning inclined sleeve (10);
the inner wall of the positioning inclined sleeve (10) is an inclined conical surface and is provided with a central hole;
the push rod (12) is connected with the central hole;
the push rod (12) transmits the pushing force to the positioning inclined sleeve (10);
the pushing force is decomposed by the inclined conical surface of the positioning inclined sleeve (10) to generate the clamping force applied to the steel ball (9).
4. The automatic positioning and clamping mechanism for the inner hole of the workpiece as recited in claim 3, wherein:
the drive mechanism includes: a positioning pad (8), a first driving slide block (7), an elastic piece and a pull rod (5);
the positioning pad (8), the first driving slide block (7) and the elastic piece are sequentially connected to the pull rod (5) from bottom to top;
a wedge-shaped gap is arranged between the positioning pad (8) and the first driving slide block (7);
the steel ball (9) is connected with the wedge-shaped notch,
the wedge-shaped notch transmits the clamping force applied to the steel ball (9) to the first driving slide block (7);
the first driving slide block (7) moves upwards along the pull rod (5) under the action of the clamping force;
the first driving slide blocks (7) are uniformly distributed with inclined surface structures in the circumferential direction;
the inclined plane structure is connected with the centering assembly;
the first driving slide block (7) moves upwards, and the inclined surface structure drives the centering assembly to clamp the inner hole of the workpiece;
the elastic element is used for resetting the first driving slide block (7) when the clamping force is removed.
5. The automatic positioning and clamping mechanism for the inner hole of the workpiece as recited in claim 4, wherein:
the centering assemblies have at least two sets;
the drive mechanism further comprises: a second driving slider (4);
the second driving slide block (4) is connected to the pull rod (5) and moves up or down along the pull rod (5) under the action of the clamping force;
the second driving sliding blocks (4) are uniformly distributed with inclined surface structures in the circumferential direction;
the inclined surface structure is connected with one set of the centering components;
the second driving slide block (4) moves up or down, and the inclined surface structure drives the centering assembly to clamp the inner hole of the workpiece.
6. The automatic positioning and clamping mechanism for the inner hole of the workpiece as recited in claim 4, wherein:
the centering assembly, comprising: at least two first push rods (2) and return springs (14) with the same number;
the inclined surface structure of the first driving slide block (7) drives the first ejector rod (2) to clamp the inner hole of the workpiece along the radial direction;
the return spring (14) is connected with the first ejector rod (2) and used for returning the first ejector rod (2).
7. The automatic positioning and clamping mechanism for the inner hole of the workpiece as recited in claim 5, wherein:
the centering assembly further comprises: at least two second push rods (1);
the inclined surface structure of the second driving slide block (4) drives the second ejector rod (1) to clamp the inner hole of the workpiece along the radial direction.
8. The automatic positioning and clamping mechanism for the inner hole of the workpiece according to any one of claims 3 to 7, characterized in that:
the actuating mechanism further comprises: a positioning seat (11);
the positioning seat (11) is connected to a chuck seat (13) of the turning machining device and used for centering and fixing the positioning inclined sleeve (10).
9. The automatic positioning and clamping mechanism for the inner hole of the workpiece according to any one of claims 4 to 7, characterized in that:
the drive mechanism further comprises: a support base (3);
the supporting seat (3) is provided with a central hole;
the pull rod (5) is arranged on the central line of the central hole.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920481344 | 2019-04-11 | ||
| CN2019204813447 | 2019-04-11 |
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| CN210524537U true CN210524537U (en) | 2020-05-15 |
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| CN201921358128.XU Active CN210524537U (en) | 2019-04-11 | 2019-08-21 | Automatic positioning and clamping mechanism for inner hole of workpiece |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110449931A (en) * | 2019-04-11 | 2019-11-15 | 齐齐哈尔雷昂重工机械制造有限责任公司 | A kind of inner hole of workpiece automatic positioning clamp system |
-
2019
- 2019-08-21 CN CN201921358128.XU patent/CN210524537U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110449931A (en) * | 2019-04-11 | 2019-11-15 | 齐齐哈尔雷昂重工机械制造有限责任公司 | A kind of inner hole of workpiece automatic positioning clamp system |
| CN110449931B (en) * | 2019-04-11 | 2024-05-24 | 齐齐哈尔雷昂重工机械制造有限责任公司 | Automatic positioning and clamping mechanism for inner hole of workpiece |
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