CN221186237U - Chuck positioning and clamping mechanism - Google Patents
Chuck positioning and clamping mechanism Download PDFInfo
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- CN221186237U CN221186237U CN202323184041.4U CN202323184041U CN221186237U CN 221186237 U CN221186237 U CN 221186237U CN 202323184041 U CN202323184041 U CN 202323184041U CN 221186237 U CN221186237 U CN 221186237U
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- chuck
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- jaw
- driving
- chuck body
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- 230000007246 mechanism Effects 0.000 title claims abstract description 62
- 238000003825 pressing Methods 0.000 claims abstract description 20
- 238000012544 monitoring process Methods 0.000 claims description 3
- 210000000078 claw Anatomy 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model provides a chuck positioning and clamping mechanism, which comprises a chuck body, wherein the chuck body is horizontally arranged; the chuck body is provided with a chuck mechanism, a chuck mechanism and a plurality of chuck mechanisms, wherein the chuck mechanism is provided with a chuck driving mechanism and a plurality of chuck jaws, and the chuck driving mechanism drives the chuck jaws to perform centripetal or centrifugal self-centering motion on the chuck body along the radial direction; the auxiliary limiting mechanism comprises a limiting pressing plate arranged on the chuck body along the radial sliding plate and a limiting driving mechanism for driving the limiting pressing plate to slide along the radial direction; the push rod is vertically arranged on the chuck body, the workpiece is positioned on a plane except for the rotation direction through the jaw mechanism which is arranged for self-centering movement, the rotation freedom degree of the workpiece is limited through the auxiliary limiting mechanism, the jaw mechanism can perform self-centering centripetal or centrifugal movement along the radial direction, and the chuck is suitable for workpieces with different diameter specifications during the mold changing, and has the characteristics of high positioning accuracy, rapid mold changing and the like.
Description
Technical Field
The utility model relates to the field of tool clamps, in particular to a chuck positioning and clamping mechanism.
Background
In the existing automobile manufacturing production line, particularly in the automobile body manufacturing link, a plurality of positioning and clamping requirements for workpieces with round or cylindrical structures are met frequently, in the prior art, positioning and clamping are carried out in a mode of V-shaped clamping blocks or multi-point jacking and the like, the clamping precision is low, when the automobile model is switched and the workpieces need to be changed, more positioning and clamping parts need to be replaced, and the switching efficiency is low.
Disclosure of utility model
The utility model aims to solve the technical problems that in the prior art, a V-shaped block or a multi-point jacking mode is adopted to position and clamp a workpiece, the positioning accuracy is low, the mold changing efficiency is low, and the utility model provides a chuck positioning and clamping mechanism for solving the problems.
The technical scheme adopted for solving the technical problems is as follows: the chuck positioning and clamping mechanism comprises a chuck body, wherein the chuck body is horizontally arranged; the chuck body is provided with a chuck mechanism, a chuck mechanism and a plurality of chuck mechanisms, wherein the chuck mechanism is provided with a chuck driving mechanism and a plurality of chuck jaws, and the chuck driving mechanism drives the chuck jaws to perform centripetal or centrifugal self-centering motion on the chuck body along the radial direction; the auxiliary limiting mechanism comprises a limiting pressing plate arranged on the chuck body along the radial sliding plate and a limiting driving mechanism for driving the limiting pressing plate to slide along the radial direction; and the push rod is vertically arranged on the chuck body.
Further: the jaw driving mechanism comprises a main bevel gear vertically arranged in the center of the chuck body, a jaw driving motor for driving the main bevel gear to rotate, a jaw driving screw rod and a jaw sliding block; the jaw driving screw rod is arranged along the radial direction of the chuck body and horizontally rotatably installed on the chuck body; the jaw sliding block is arranged on the jaw driving screw rod and axially moves along the jaw driving screw rod under the rotation driving of the jaw driving screw rod; the clamping jaw is fixedly connected with the clamping jaw sliding block; the tail end of the claw driving screw rod is provided with a slave bevel gear, and the slave bevel gear is meshed with the master bevel gear.
Further: the limiting driving mechanism comprises a limiting driving screw rod and a limiting sliding block, wherein the limiting driving screw rod is arranged along the radial direction of the chuck body and horizontally rotatably installed on the chuck body, and the limiting sliding block is installed on the limiting driving screw rod and axially moves along the limiting driving screw rod under the rotation driving of the limiting driving screw rod; the limiting pressing plate is fixedly connected with the limiting sliding block; one end of the limit driving screw is provided with a limit driving motor for driving the limit driving screw to rotate, and the other end of the limit driving screw is provided with an encoder for monitoring the rotation angle of the limit driving screw.
Further: the push rod comprises a fixing sleeve which is vertically arranged, a pressure rod which is slidably arranged in the fixing sleeve, and a spring which is arranged in the fixing sleeve and pushes the pressure rod upwards, and the tail end of the push rod is provided with a jacking block.
The chuck positioning and clamping mechanism has the beneficial effects that the chuck positioning and clamping mechanism realizes the positioning of workpieces except the rotation direction on a plane through the jaw mechanism with self-centering movement, and the rotation freedom degree of the workpieces is limited through the auxiliary limiting mechanism, so that the jaw mechanism can perform self-centering centripetal or centrifugal movement along the radial direction, is suitable for the workpieces with different diameter specifications during the mold changing, and has the characteristics of high positioning accuracy, rapid mold changing and the like.
Drawings
The utility model will be further described with reference to the drawings and examples.
FIGS. 1 and 2 are schematic views of the structure of the present utility model;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
Fig. 4 is a schematic structural view of the push rod.
In the figure, 1, chuck body, 2, jaw mechanism, 3, jaw driving mechanism, 4, jack catch, 5, auxiliary limiting mechanism, 6, limiting pressing plate, 7, limiting driving mechanism, 8, push rod, 9, main bevel gear, 10, jaw driving motor, 11, jaw driving screw, 12, jaw sliding block, 13, auxiliary bevel gear, 14, limiting driving screw, 15, limiting sliding block, 16, limiting driving motor, 17, fixed sleeve, 18, pressing rod, 19 and top block.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model. On the contrary, the embodiments of the utility model include all alternatives, modifications and equivalents as may be included within the spirit and scope of the appended claims.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and further implementations are included within the scope of the preferred embodiment of the present utility model in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present utility model.
As shown in fig. 1 to 4, the present utility model provides a chuck positioning and clamping mechanism, comprising a chuck body 1, wherein the chuck body 1 is horizontally arranged; the chuck body 1 is provided with a jaw driving mechanism 3 and a plurality of jaws 4, wherein the jaw driving mechanism 3 drives the jaws 4 to do centripetal or centrifugal self-centering motion on the chuck body 1 along the radial direction; the auxiliary limiting mechanism 5 comprises a limiting pressing plate 6 arranged on the chuck body 1 along a radial sliding plate and a limiting driving mechanism 7 for driving the limiting pressing plate 6 to slide along the radial direction; a push rod 8 vertically installed on the chuck body 1.
On the existing clamp, when the circular structural component product is required to be clamped, the technical scheme disclosed by the application can realize direct switching of different outer circle diameters, and has the functions of self-centering and self-positioning.
When the chuck is specifically used, the chuck body 1 is horizontally placed, a workpiece to be clamped is conveniently taken and placed on the positioning and clamping mechanism, the clamping jaw 4 on the clamping jaw mechanism 2 can perform self-centering centripetal or centrifugal movement, so that the automatic adjustment of the clamping diameter can be realized, the clamping center is kept unchanged during adjustment, and the automatic positioning of the position of the clamped workpiece can be realized.
The auxiliary limiting mechanism 5 is used for assisting in limiting the degree of freedom of the workpiece in the rotating direction, the degree of freedom of the workpiece in the rotating direction in the plane is limited due to the action of the jaw mechanism 2, all degrees of freedom of the clamped workpiece in the plane direction of the chuck body 1 can be realized through the auxiliary limiting mechanism 5, the clamped workpiece can be fully positioned and clamped, the position of the limiting pressing plate 6 can be radially adjusted by the auxiliary limiting mechanism 5, and therefore the clamping mechanism can be suitable for the limiting requirements of workpieces with different diameters, and the clamping jaw mechanism 2 can be matched for realizing quick type changing of the clamped workpiece.
The push rod 8 sets up along the plane of perpendicular to chuck body 1, and when the work piece of centre gripping was placed on chuck body 1, push rod 8 can play auxiliary stay's effect, maintains the steady state of work piece on chuck body 1, simultaneously, push rod 8 also can make into the round pin type structure, can carry out auxiliary positioning to the mounting hole on the work piece, the accurate positioning and the clamp of the work piece on chuck body 1 of being convenient for guarantee the operation of follow-up operating device to the centre gripping work piece.
The jaw driving mechanism 3 comprises a main bevel gear 9 vertically arranged in the center of the chuck body 1, a jaw driving motor 10 for driving the main bevel gear 9 to rotate, a jaw driving screw 11 and a jaw sliding block 12; the jaw driving screw rod 11 is arranged along the radial direction of the chuck body 1 and horizontally rotatably installed on the chuck body 1; the jaw sliding block 12 is arranged on the jaw driving screw rod 11 and axially moves along the jaw driving screw rod 11 under the rotation driving of the jaw driving screw rod 11; the clamping jaw 4 is fixedly connected with the clamping jaw sliding block 12; the end of the jaw driving screw 11 is provided with a slave bevel gear 13, the slave bevel gear 13 being in engagement with the master bevel gear 9.
The jaw driving screw rod 11 is driven by the slave bevel gears 13 to rotate, the jaw sliding blocks 12 can be driven to axially move, the slave bevel gears 13 are simultaneously meshed with the master bevel gear 9, the master bevel gear 9 is driven by the jaw driving motor 10 to rotate, the slave bevel gears 13 meshed with the master bevel gear 9 can be simultaneously driven to rotate by the rotation of the master bevel gear 9, the jaw driving screw rods 11 can be synchronously driven to rotate, the driven rotation amount of each jaw driving screw rod 11 is consistent, the jaws 4 can be driven to make centripetal or centrifugal movement in the radial direction in equal quantity, and thus synchronous self-centering movement of the jaws 4 is realized, and the effects of clamping different diameters and keeping the clamping center unchanged are achieved. The form of a plurality of slave bevel gears 13 which are simultaneously driven and meshed through the master bevel gear 9 can ensure that the slave bevel gears 13 are synchronously and equivalently driven, so that the self-centering movement of the clamping jaw 4 is ensured, the positioning precision of the driving mode is higher, and the master bevel gear 9 can be driven through the control of a servo motor, and the control is convenient.
The limiting driving mechanism 7 comprises a limiting driving screw 14 and a limiting sliding block 15, wherein the limiting driving screw 14 is arranged along the radial direction of the chuck body 1 and horizontally rotatably installed on the chuck body 1, and the limiting sliding block 15 is installed on the limiting driving screw 14 and axially moves along the limiting driving screw 14 under the rotation driving of the limiting driving screw 14; the limiting pressing plate 6 is fixedly connected with the limiting sliding block 15; one end of the limit driving screw 14 is provided with a limit driving motor 16 for driving the limit driving screw 14 to rotate, and the other end of the limit driving screw 14 is provided with an encoder for monitoring the rotation angle of the limit driving screw 14.
The spacing driving lead screw 14 can accurately control the rotation amount and further control the moving distance of the spacing sliding block 15 under the driving of the spacing driving motor 16, so that the accurate displacement control of the spacing pressing plate 6 is realized, the workpiece clamped on the chuck body 1 is conveniently positioned in an auxiliary mode or clamped, when the workpiece is subjected to the die change, the quick switching can be realized, the encoder can monitor the rotating turntable of the spacing driving lead screw 14 and further indirectly obtain the position state of the spacing pressing plate 6, and the control precision of the spacing pressing plate 6 is improved.
The push rod 8 comprises a fixing sleeve 17 which is vertically arranged, a pressure rod 18 which is slidably arranged in the fixing sleeve 17 and a spring which is arranged in the fixing sleeve 17 and pushes the pressure rod 18 upwards, and the tail end of the push rod 8 is provided with a top block 19.
When a workpiece is placed on the chuck body 1, the spring can push the pressing rod 18 upwards, so that the pressing rod 18 can lift the corresponding position of the workpiece upwards, an auxiliary supporting effect is achieved on the workpiece, the workpiece can be conveniently guaranteed to be in a stable state on the chuck body 1, and the pressing rod 18 can stretch and slide in the fixed sleeve 17, so that the normal positioning of the workpiece on the chuck body 1 is not affected, abnormal interference is not caused, and the installation positioning precision of the workpiece on the chuck body 1 can be further improved.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 utility model. In this specification, schematic representations of the terms 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.
With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.
Claims (4)
1. The utility model provides a chuck positioning and clamping mechanism which characterized in that: comprising
The chuck comprises a chuck body (1), wherein the chuck body (1) is horizontally arranged;
The chuck comprises a chuck body (1), a jaw mechanism (2) and a plurality of clamping jaws (4), wherein the chuck body (1) is provided with a jaw driving mechanism (3), and the jaw driving mechanism (3) drives the clamping jaws (4) to perform centripetal or centrifugal self-centering motion on the chuck body (1) in the radial direction;
The auxiliary limiting mechanism (5) comprises a limiting pressing plate (6) arranged on the chuck body (1) along a radial sliding plate and a limiting driving mechanism (7) for driving the limiting pressing plate (6) to slide along the radial direction;
the push rod (8) is vertically arranged on the chuck body (1).
2. The chuck positioning and clamping mechanism as set forth in claim 1, wherein: the jaw driving mechanism (3) comprises a main bevel gear (9) vertically arranged at the center of the chuck body (1), a jaw driving motor (10) for driving the main bevel gear (9) to rotate, a jaw driving screw (11) and a jaw sliding block (12); the jaw driving screw rod (11) is arranged along the radial direction of the chuck body (1) and is horizontally and rotatably arranged on the chuck body (1); the jaw sliding block (12) is arranged on the jaw driving screw rod (11) and axially moves along the jaw driving screw rod (11) under the rotation driving of the jaw driving screw rod (11); the clamping jaw (4) is fixedly connected with the clamping jaw sliding block (12); the tail end of the claw driving screw rod (11) is provided with a slave bevel gear (13), and the slave bevel gear (13) is meshed with the master bevel gear (9).
3. The chuck positioning and clamping mechanism as set forth in claim 1, wherein: the limiting driving mechanism (7) comprises a limiting driving screw (14) and a limiting sliding block (15), wherein the limiting driving screw (14) is arranged along the radial direction of the chuck body (1) and horizontally rotatably installed on the chuck body (1), and the limiting sliding block (15) is installed on the limiting driving screw (14) and axially moves along the limiting driving screw (14) under the rotation driving of the limiting driving screw (14); the limiting pressing plate (6) is fixedly connected with the limiting sliding block (15); one end of the limit driving screw (14) is provided with a limit driving motor (16) for driving the limit driving screw (14) to rotate, and the other end of the limit driving screw is provided with an encoder for monitoring the rotation angle of the limit driving screw (14).
4. The chuck positioning and clamping mechanism as set forth in claim 1, wherein: the push rod (8) comprises a fixing sleeve (17) which is vertically arranged, a pressure rod (18) which is slidably arranged in the fixing sleeve (17) and a spring which is arranged in the fixing sleeve (17) and pushes the pressure rod (18) upwards, and the tail end of the push rod (8) is provided with a jacking block (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323184041.4U CN221186237U (en) | 2023-11-24 | 2023-11-24 | Chuck positioning and clamping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323184041.4U CN221186237U (en) | 2023-11-24 | 2023-11-24 | Chuck positioning and clamping mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221186237U true CN221186237U (en) | 2024-06-21 |
Family
ID=91494558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323184041.4U Active CN221186237U (en) | 2023-11-24 | 2023-11-24 | Chuck positioning and clamping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221186237U (en) |
-
2023
- 2023-11-24 CN CN202323184041.4U patent/CN221186237U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 1288, Pengqing Road, Huaqiao Town, Kunshan City, Suzhou City, Jiangsu Province 215300 Patentee after: Suzhou Nok Intelligent Equipment Co.,Ltd. Country or region after: China Address before: No. 1288, Pengqing Road, Huaqiao Town, Kunshan City, Suzhou City, Jiangsu Province 215300 Patentee before: SUZHOU NOKE AUTOMOTIVE ENGINEERING MACHINERY Co.,Ltd. Country or region before: China |