CN219581701U - Chuck positioning device - Google Patents

Abstract

The utility model relates to the technical field of tool clamps, and particularly discloses a chuck positioning device. The device is used for clamping a workpiece to be clamped, the outer surface of which is provided with a positioning surface, and comprises a chuck module, a positioning module and a pressure sensor; the chuck module comprises a chuck body and a plurality of clamping jaws arranged on the chuck body; the positioning module is arranged on one clamping jaw and comprises a turnover unit, the turnover unit is rotationally arranged on the clamping jaw and selectively fixed at a positioning position, an abutting surface is arranged on the turnover unit, and when the turnover unit is positioned at the positioning position, the abutting surface is contacted with the positioning surface; the pressure sensor is used for monitoring stress information of the abutting surface. The device performs radial limit on the workpiece to be clamped by means of the arrangement of the overturning unit for positioning, and is helpful for determining the reference surface of the workpiece to be clamped; the turnover design of the turnover unit improves the clamping efficiency, and the setting of the pressure sensor is combined, so that the limit condition can be judged by analyzing stress information, and the limit effect is ensured.

Description

Chuck positioning device

Technical Field

The utility model relates to the technical field of tool clamps, in particular to a chuck positioning device.

Background

The chuck is a mechanical device used for clamping a workpiece to be clamped on processing equipment such as a machine tool, and the chuck clamps and fixes the workpiece to be clamped by utilizing radial movement of movable claws uniformly distributed on the chuck body. Usually, when the chuck clamps a workpiece to be clamped, the clamping action of the chuck is completed only on the journal end.

However, a large number of workpieces on today's automobiles require drilling operations. For processes such as drilling, the chuck is required to determine and limit the drilling position of the workpiece to be clamped, which places demands on the radial limiting capability of the chuck positioning device for the workpiece to be clamped.

Disclosure of Invention

The utility model aims to provide a chuck positioning device, which is used for judging whether a workpiece to be clamped is clamped in place in the radial direction or not by monitoring the fitting condition of an abutting surface and a positioning surface of the workpiece to be clamped, so that the workpiece to be clamped is accurately clamped.

To achieve the purpose, the utility model adopts the following technical scheme:

the chuck positioning device is used for clamping a workpiece to be clamped, and the outer surface of the workpiece to be clamped is provided with a positioning surface, and comprises a chuck module, a positioning module and a pressure sensor; the chuck module comprises a chuck body and a plurality of clamping jaws arranged on the chuck body; the positioning module is arranged on one clamping jaw and comprises a turnover unit, the turnover unit is rotationally arranged on the clamping jaw and is selectively fixed at a positioning position, an abutting surface is arranged on the turnover unit, and when the turnover unit is positioned at the positioning position, the abutting surface is contacted with the positioning surface; the pressure sensor is used for monitoring stress information of the abutting surface.

As the preferred technical scheme of chuck positioner, the positioning module still includes the support, the support rigid coupling in the clamping jaw, the upset unit includes the upset board, the one end of upset board pass through the hinge pin rotate connect in the support, the other end of upset board is connected with and supports and lean on the piece, support and lean on the face and locate support and lean on the piece.

As the preferable technical scheme of the chuck positioning device, the abutting piece is provided with an adjusting part and a contact part, the adjusting part is movably mounted on the turnover plate, and the abutting surface is arranged on the contact part.

As the preferable technical scheme of chuck positioner, support and lean on the piece and include positioning bolt, the contact portion includes positioning bolt's spiral shell head, support and lean on the face be positioning bolt's spiral shell head is kept away from positioning bolt's screw rod one end's terminal surface, adjustment part includes positioning bolt's screw rod, positioning bolt's screw rod spiro union in the upset board, positioning bolt can be relative the upset board is followed positioning bolt's length direction removes.

As a preferable technical scheme of the chuck positioning device, the positioning module further comprises a pressing piece, and the pressing piece selectively presses against the overturning plate, so that the overturning plate at the positioning position is clamped between the pressing piece and the support.

As the preferable technical scheme of the chuck positioning device, the pressing piece comprises a fixing bolt fixedly connected to the support and a locking nut screwed on the fixing bolt, wherein the locking nut is used for pressing the overturning plate.

As a preferable technical scheme of the chuck positioning device, the fixing bolt passes through the locking nut along the length direction of the locking nut, and the projection of the locking nut in a plane perpendicular to the length direction of the locking nut is diamond.

As the preferable technical scheme of chuck positioner, protruding the being equipped with of support is protruding, the rigid coupling has the buttress nail on the upset board, when the upset board is in the locate position, the buttress nail support press in the supporting bulge.

As the preferable technical scheme of the chuck positioning device, the chuck positioning device further comprises a control unit and an alarm unit, wherein the control unit is in communication connection with the alarm unit and the pressure sensor, and the control unit can control the alarm unit to give an alarm according to the stress information.

As the preferred technical scheme of chuck positioner, the chuck module still includes the connecting plate, the chuck body is equipped with relative junction surface and stationary plane, the junction surface is passed through the connecting plate is connected with the lathe workstation, all the chuck body all install in on the stationary plane.

The utility model has the beneficial effects that:

according to the chuck positioning device, the positioning module is arranged on one clamping jaw, so that the clamping workpiece is limited in the radial direction by utilizing the overturning unit under the condition that all clamping jaws are used for axially and radially positioning the clamping workpiece, the relative position of the overturning unit and the workpiece to be clamped is determined by contacting the abutting surface with the positioning surface, and the stress information of the abutting surface is monitored by matching with the pressure sensor, so that the fitting condition of the abutting surface and the positioning surface can be intuitively and accurately displayed, and an operator can conveniently judge whether the workpiece to be clamped is accurately clamped in place. The turnover design of the turnover unit can avoid the position in the clamping process of the workpiece to be clamped, so that the working flexibility of the chuck positioning device is improved, and the clamping efficiency is improved. The structure improvement of the chuck positioning device is realized by the design, the chuck positioning device is helped to determine the datum plane of the workpiece to be clamped, the subsequent working procedures of drilling holes on the workpiece to be clamped are facilitated to be carried out smoothly, the application scene of the chuck positioning device is expanded, the production cost is saved, the operation is convenient, the workload of operators is effectively reduced, and the efficiency of clamping the workpiece to be clamped is improved.

Drawings

FIG. 1 is a cross-sectional view of a workpiece to be clamped provided by an embodiment of the present utility model;

FIG. 2 is a top view of a workpiece to be clamped provided by an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of a chuck positioning device provided in an embodiment of the utility model;

FIG. 4 is a top view of a chuck positioning device provided in an embodiment of the utility model;

FIG. 5 is a cross-sectional view of a chuck positioning device and a workpiece to be clamped provided in an embodiment of the utility model;

FIG. 6 is a top view of a chuck positioning device and a workpiece to be clamped provided in an embodiment of the utility model;

FIG. 7 is a partial cross-sectional view of a jaw provided by an embodiment of the utility model;

FIG. 8 is a cross-sectional view of a mount provided by an embodiment of the present utility model;

FIG. 9 is a top view of a mount provided by an embodiment of the present utility model;

fig. 10 is a side view of a roll-over panel provided by an embodiment of the present utility model;

fig. 11 is a top view of a roll-over panel provided by an embodiment of the present utility model;

FIG. 12 is a top view of a lock nut according to an embodiment of the present utility model;

fig. 13 is a top view of a lock nut according to an embodiment of the present utility model.

In the figure:

100. a connecting plate; 200. a chuck body; 300. a clamping jaw; 410. a first bolt; 420. a suspension ring screw; 430. t-shaped slot screws; 440. a second bolt;

500. a positioning module; 510. a support; 511. a supporting protrusion; 520. supporting nails; 530. a hinge shaft; 540. a turnover plate; 550. locking the nut; 560. a fixing bolt; 570. washer cotter pin; 580. an abutment;

900. a workpiece to be clamped; 910. and rib plates.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements 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. Wherein the terms "first location" and "second location" are two distinct locations and wherein the first feature is "above," "over" and "over" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is level above the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "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, and can be communication between two elements. 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.

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.

In this embodiment, as shown in fig. 1 and 2, a workpiece 900 to be clamped is a component part on a vehicle. The workpiece 900 to be clamped is symmetrical about the axis of the workpiece 900 to be clamped, a plurality of rib plates 910 extending along the radial direction of the workpiece 900 to be clamped are uniformly distributed on the peripheral surface of one end at intervals, and the side surfaces of the rib plates 910 are used as positioning surfaces of the workpiece 900 to be clamped in the embodiment. In other implementations of this embodiment, the workpiece 900 to be clamped is another part having a positioning surface on an outer surface, which is not described in detail herein.

As shown in fig. 3 to 13, the present embodiment provides a chuck positioning device for clamping a workpiece 900 to be clamped, wherein a positioning surface is provided on an outer surface of the workpiece 900 to be clamped, and the chuck positioning device comprises a chuck module, a positioning module 500 and a pressure sensor; the chuck module comprises a chuck body 200 and a plurality of clamping jaws 300 mounted on the chuck body 200; the positioning module 500 is mounted on one clamping jaw 300, the positioning module 500 comprises a turnover unit, the turnover unit is rotatably arranged on the clamping jaw 300, the turnover unit is selectively fixed at a positioning position, an abutting surface is arranged on the turnover unit, and when the turnover unit is positioned at the positioning position, the abutting surface is contacted with the positioning surface; the pressure sensor is used for monitoring stress information of the abutting surface.

According to the chuck positioning device, the positioning module 500 is arranged on one clamping jaw 300, so that under the condition that all clamping jaws 300 axially and radially position a workpiece 900 to be clamped, the workpiece 900 to be clamped is limited in the radial direction by the overturning unit, the relative position of the overturning unit and the workpiece 900 to be clamped is determined by contacting the abutting surface with the positioning surface, and the stress information of the abutting surface is monitored by the pressure sensor, so that the abutting condition of the abutting surface and the positioning surface can be intuitively and accurately displayed, and an operator can conveniently judge whether the workpiece 900 to be clamped in place accurately. The turnover design of the turnover unit can avoid the position in the clamping process of the workpiece 900 to be clamped, so that the working flexibility of the chuck positioning device is improved, and the clamping efficiency is improved. The above design realizes the structural improvement of the chuck positioning device, is favorable for determining the reference surface of the workpiece 900 to be clamped by the chuck positioning device, facilitates the smooth proceeding of the subsequent working procedures such as drilling on the workpiece 900 to be clamped, expands the application scene of the chuck positioning device, saves the production cost, is convenient to operate, effectively reduces the workload of operators, and improves the efficiency of clamping the workpiece 900 to be clamped.

In this embodiment, all the clamping jaws 300 clamp the journals of the workpiece 900 to be clamped, and the turnover unit is used to limit the workpiece 900 to be clamped, and meanwhile, the clamping jaws 300 are required to avoid the clamping position of the workpiece 900 to be clamped. Considering the structure of the workpiece 900 to be clamped in the utility model, the end face of the workpiece 900 to be clamped is taken as a reference surface, the clamping action is completed by using the clamping jaw 300, and the reference positioning is performed on the workpiece reference surface by using the overturning unit. For the position of the machining hole, a gap is formed at the clamping jaw 300 so as to avoid a drill bit for drilling.

Illustratively, the chuck body 200 is provided with three clamping jaws 300, and the three clamping jaws 300 are uniformly distributed around the axis of the chuck body 200 at intervals and can be matched and attached with the outer surface of the workpiece 900 to be clamped. The clamping jaw 300 is provided with a protruding key at one end connected with the chuck body 200, the chuck body 200 is concavely provided with three corresponding key grooves, and the protruding key can be matched and inserted in the key groove, so that the clamping jaw 300 can be accurately installed on the chuck body 200. The cooperation of the design that the first bolt 410 passes through the clamping jaw 300 and is in threaded connection with the chuck body 200 ensures that the clamping jaw 300 can be stably mounted on the chuck body 200.

Further, the mounting position of the clamping jaw 300 on the chuck body 200 is adjustable to adapt to workpieces 900 to be clamped of different sizes and types, and the specific positioning manner is well known in the art, and is not described in detail herein.

In this embodiment, the positioning module 500 further includes a support 510, the support 510 is fixedly connected to the clamping jaw 300, the overturning unit includes an overturning plate 540, one end of the overturning plate 540 is rotatably connected to the support 510 through a hinge shaft 530, the other end of the overturning plate 540 is connected to an abutting piece 580, and an abutting surface is disposed on the abutting piece 580. The support 510 is configured to coordinate the connection between the overturning unit and the clamping jaw 300, provide a mounting position for other components on the positioning module 500, and facilitate the improvement of the modularization degree of the positioning module 500, so that the structure of the positioning module 500 can be applied to other chucks of the same type, and facilitate the increase of the application range of the chuck positioning device.

Specifically, the support 510 is screwed to an end of the clamping jaw 300 remote from the chuck body 200 by an assembly bolt; the hinge shaft 530 passes through the flipping plate 540 and the stand 510, and is fixedly coupled with the washer cotter pin 570.

Further, the abutting piece 580 is provided with an adjusting portion and a contact portion, the adjusting portion is movably mounted on the overturning plate 540, and the abutting surface is disposed on the contact portion. The above design enables the relative positions of the abutting surface and the overturning plate 540 to be adjustable, so that the abutting surface can be adjusted according to the positions of the positioning surfaces on different workpieces 900 to be clamped, and the chuck positioning device can be applied to clamping operations of the workpieces 900 to be clamped in different sizes and types, and the application range of the chuck positioning device is further enlarged.

Still further, the abutting piece 580 includes a positioning bolt, the contact portion includes a screw head of the positioning bolt, the abutting surface is an end surface of the screw head of the positioning bolt, which is far away from one end of the screw of the positioning bolt, the adjusting portion includes a screw of the positioning bolt, the screw of the positioning bolt is screwed to the overturning plate 540, and the positioning bolt can move along a length direction of the positioning bolt relative to the overturning plate 540. Specifically, the positioning bolt passes through the flipping plate 540 and is screwed with the positioning nut. The positioning bolt has simple and reliable structure, low production cost and high working stability, and can easily realize the relative position adjustment between the abutting surface and the turnover plate 540.

In this embodiment, the positioning module 500 further includes a pressing member selectively pressing against the flipping plate 540, so that the flipping plate 540 in the positioning position is sandwiched between the pressing member and the support 510. The arrangement of the pressing piece enables the overturning unit to be accurately positioned at the positioning position in a clamped mode, avoids the situation that the overturning unit generates position deviation due to accidents, reduces the influence on stress information, and further guarantees the clamping effect of the workpiece 900 to be clamped.

Further, the pressing member includes a fixing bolt 560 fixedly connected to the support 510 and a locking nut 550 screwed to the fixing bolt 560, where the locking nut 550 is used to press the flipping plate 540. The fixing bolt 560 and the locking nut 550 have simple and reliable structure, convenient arrangement and high working stability, and are beneficial to realizing accurate positioning of the turnover plate 540.

Still further, the fixing bolt 560 passes through the locking nut 550 along the length direction of the locking nut 550, and the locking nut 550 is projected as a diamond shape in a plane perpendicular to the length direction of the locking nut 550. The design is simple and reliable, the structure of the locking nut 550 is simplified, and the difficulty of screwing the locking nut 550 by an operator is reduced. The projection of the locking nut 550 in the height direction is diamond-shaped, so that the locking nut 550 with an irregular shape has the capability of adjusting the pressing state of the pressing piece on the turnover plate 540 when rotating to different angles, thereby facilitating the adjustment of the selective pressing of the pressing piece on the turnover plate 540, reducing the difficulty of finishing the pressing action and improving the working efficiency.

Specifically, the size and dimension of the locking nut 550 can be adjusted according to the size of the pressing member, and the specific adjustment manner is a conventional technical means in the art, and is well known to those skilled in the art, and will not be described in detail herein.

In this embodiment, the support 510 is provided with a supporting protrusion 511, the overturning plate 540 is fixedly connected with a supporting pin 520, and when the overturning plate 540 is at the positioning position, the supporting pin 520 is pressed against the supporting protrusion 511. The design of the abutment of the stud 520 with the support protrusions 511 ensures that the turnover unit can be accurately stopped at a fixed position, thus facilitating smooth completion of the clamping action and improving the positioning stability of the turnover unit.

Specifically, the support pins 520 are screwed on the overturning plate 540, and the relative positions of the support pins 520 and the overturning plate 540 are adjustable, so that the fixing position of the overturning plate 540 can be adjusted, thereby being suitable for workpieces 900 to be clamped with more sizes, and further expanding the application range of the chuck positioning device.

The chuck positioning device further comprises a control unit and an alarm unit, wherein the control unit is in communication connection with the alarm unit and the pressure sensor, and the control unit can control the alarm unit to give an alarm according to the stress information. Specifically, the pressure sensor is provided on the abutment surface. By means of the arrangement of the control unit and the alarm unit, stress information can be timely processed and analyzed, and when abnormal conditions occur, an alarm can timely remind an operator of the problem of clamping the workpiece 900 to be clamped, so that the operator can correct the clamping position in time, the clamping efficiency is improved, the follow-up processing procedure can be smoothly performed, and the production yield of the workpiece 900 to be clamped is improved.

In this embodiment, the chuck module further includes a connection plate 100, the chuck body 200 is provided with a connection surface and a fixing surface, the connection surface is connected with the machine tool workbench through the connection plate 100, and all the chuck bodies 200 are mounted on the fixing surface. The structure is simple and reliable, the occupied space is small, the connection stability is high, and the production cost is low.

Specifically, the connection plate 100 is in threaded connection with the machine tool workbench through a T-shaped slot screw 430, a lifting screw 420 is fixedly connected to the connection plate 100, and the lifting screw 420 provides a traction position for the chuck positioning device; the connection plate 100 is screw-coupled with the chuck body 200 by the second bolt 440.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. Chuck positioner for centre gripping waits to grip workpiece (900), the surface of waiting to grip workpiece (900) is equipped with the locating surface, its characterized in that includes:

a chuck module comprising a chuck body (200) and a plurality of clamping jaws (300) mounted on the chuck body (200);

the positioning module (500) is arranged on one clamping jaw (300), the positioning module (500) comprises a turnover unit, the turnover unit is rotatably arranged on the clamping jaw (300), the turnover unit is selectively fixed at a positioning position, an abutting surface is arranged on the turnover unit, and when the turnover unit is positioned at the positioning position, the abutting surface is contacted with the positioning surface;

and the pressure sensor is used for monitoring stress information of the abutting surface.

2. The chuck positioning device as in claim 1, wherein the positioning module (500) further comprises a support (510), the support (510) is fixedly connected to the clamping jaw (300), the turning unit comprises a turning plate (540), one end of the turning plate (540) is rotatably connected to the support (510) through a hinge shaft (530), the other end of the turning plate (540) is connected to an abutting piece (580), and the abutting surface is disposed on the abutting piece (580).

3. The chuck positioning device as in claim 2, wherein the abutment member (580) is provided with an adjustment portion movably mounted to the flipping plate (540) and a contact portion on which the abutment surface is provided.

4. A chuck positioning device as in claim 3, wherein said abutment member (580) comprises a positioning bolt, said contact portion comprises a threaded head of said positioning bolt, said abutment surface is an end surface of said threaded head of said positioning bolt remote from an end of said threaded shaft of said positioning bolt, said adjustment portion comprises said threaded shaft of said positioning bolt, said threaded shaft of said positioning bolt is threadably engaged with said flipping plate (540), and said positioning bolt is movable relative to said flipping plate (540) along a length of said positioning bolt.

5. The chuck positioning device as in claim 2, wherein said positioning module (500) further comprises a pressing member selectively pressing against said flipping plate (540) such that said flipping plate (540) in said positioning position is sandwiched between said pressing member and said support (510).

6. The chuck positioning device as in claim 5, wherein the pressing member comprises a fixing bolt (560) fixedly connected to the support (510) and a locking nut (550) screwed to the fixing bolt (560), the locking nut (550) being configured to press against the flipping plate (540).

7. The chuck positioning device as in claim 6, wherein the securing bolt (560) passes through the locking nut (550) along a length direction of the locking nut (550), the locking nut (550) being diamond shaped in projection in a plane perpendicular to the length direction of the locking nut (550).

8. The chuck positioning device according to claim 2, wherein the support (510) is provided with a supporting protrusion (511) in a protruding manner, and the turning plate (540) is fixedly connected with a support pin (520), and when the turning plate (540) is in the positioning position, the support pin (520) is pressed against the supporting protrusion (511).

9. The chuck positioning device of claim 1, further comprising a control unit and an alarm unit, wherein the control unit is communicatively coupled to the alarm unit and the pressure sensor, wherein the control unit is capable of controlling the alarm unit to issue an alarm based on the force information.

10. The chuck positioning device according to any one of claims 1 to 9, characterized in that the chuck module further comprises a connecting plate (100), the chuck body (200) being provided with opposite connecting and fixing surfaces, the connecting surfaces being connected to a machine tool table by means of the connecting plate (100), all the chuck bodies (200) being mounted on the fixing surfaces.