CN220389225U

CN220389225U - Clamping tool for part measurement

Info

Publication number: CN220389225U
Application number: CN202322049214.5U
Authority: CN
Inventors: 杨选
Original assignee: Chongqing Changan Automobile Co Ltd
Current assignee: Chongqing Changan Automobile Co Ltd
Priority date: 2023-08-01
Filing date: 2023-08-01
Publication date: 2024-01-26
Anticipated expiration: 2033-08-01

Abstract

The utility model relates to the technical field of clamping measurement, in particular to a clamping tool for part measurement, which comprises a lower rotating body, a rotating assembly and an upper rotating body, wherein a clamping base is arranged at the bottom of the lower rotating body, one end of the rotating assembly is connected with the lower rotating body through a spherical hinge, the other end of the rotating assembly is connected with the upper rotating body through a spherical hinge, a first positioning piece is arranged between the rotating assembly and the lower rotating body, a second positioning piece is arranged between the rotating assembly and the upper rotating body, and the upper rotating body is provided with the clamping assembly. The aim is that: the clamping tool is used for solving the problems that in the prior art, the adjusting range of the clamping tool is not large, and the measuring requirements of different parts in the area above the XY plane of the machine cannot be met.

Description

Clamping tool for part measurement

Technical Field

The utility model relates to the technical field of clamping measurement, in particular to a clamping tool for part measurement.

Background

In profile measurement, the stylus is relatively fixed in position and can only move horizontally along the guide rail in the X-direction of the machine, with the stylus facing downwards, i.e. in the-Z-direction of the machine, which requires that the measuring surface of the sample to be measured must be facing upwards, i.e. in the +Z-direction of the machine. In actual measurement, the requirements of multi-direction and multi-area measurement of complex sample pieces are met, the postures of the parts are required to be flexibly placed under the condition that the positions of the measuring pins are relatively fixed, different measuring surfaces of the parts face to the machine plus Z direction, and further the fact that the measuring pins can accurately collect original contour data is ensured.

Patent (publication number: CN 212399356U) discloses a universal clamping structure suitable for small-sized bearings to detect fast, and mentions the problem of multi-posture measurement. The clamping gesture of the bearing with multiple degrees of freedom is adjusted through the clamping component arranged on the upper part and the universal component arranged on the lower part, and the requirements of different detection angles of the small bearing are mainly met.

However, for parts with different types and different forms, in the clamping and switching process, the clamp needs to be adjusted, and at present, although some tools can meet the requirement of adjusting the clamp, the structure is complex, so that the cost is high; and when measuring, the adjusting range of the existing tool is not large, and the measuring requirements of different parts in the area above the XY plane of the machine cannot be met.

Disclosure of Invention

The utility model aims to provide a clamping tool for part measurement, which is used for solving the problem that the adjusting range of the clamping tool in the prior art is not large and the measurement requirements of different parts in an area above an XY plane of a machine cannot be met.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a part measures and uses centre gripping frock, includes rotator, rotating assembly and last rotator down, the bottom of rotator is provided with the centre gripping base down, rotating assembly's one end passes through the ball pivot with lower rotator and is connected, and the other end passes through the ball pivot with last rotator and is connected, be equipped with first setting element between rotating assembly and the lower rotator, be equipped with the second setting element between rotating assembly and the last rotator, be provided with the centre gripping subassembly on the last rotator.

According to the technical means, through multi-dimensional adjustment, the parts can be adjusted to a desired measurement area above the XY plane of the machine, and all face to the +Z direction, so that the measurement requirements of different parts can be flexibly met.

Further, the top of lower rotator has seted up cross groove I and first ball groove, first ball groove is located the central authorities of cross groove I, and communicates with each other with cross groove I, cross groove II and second ball groove have been seted up to the bottom of last rotator, the second ball groove is located the central authorities of cross groove II, and communicates with each other with cross groove II.

According to the technical means, the positive X-direction and positive Y-direction accurate limiting effect is achieved through the cross groove I and the cross groove II; the first ball body and the second ball body are respectively rotatably arranged through the first ball groove and the second ball groove, so that the sliding sleeve of the first ball body and the lower rotating body and the sliding sleeve of the second ball body and the upper rotating body are prevented from sliding.

Further, a first threaded hole is formed in the top of the clamping base, the lower rotating body is in threaded connection with the first threaded hole, a lock pin is inserted into one side of the lower rotating body on the clamping base, and the inner end of the lock pin abuts against the lower rotating body.

According to the technical means, the position relation of the lower rotating body relative to the clamping base is adjustable, and the effect of locking the specific position of the lower rotating body on the clamping base is achieved through the lock pin; when the specific position of the lower rotating body needs to be adjusted, the lower rotating body can be rotated by removing the lock pin.

Further, the rotating assembly comprises a supporting rod, one end of the supporting rod is fixedly connected with a first ball body, the other end of the supporting rod is fixedly connected with a second ball body, the first ball body is rotatably installed in the first ball groove, and the second ball body is rotatably installed in the second ball groove.

According to the technical means, when the tooling is adjusted, the specific position of the upper rotating body or the lower rotating body is adjusted through the cooperation of the first sphere and the second sphere; meanwhile, the supporting rod can rotate to the horizontal position in the cross groove I and the cross groove II, namely, the supporting rod can rotate in the area above the XY plane of the machine, so that the condition that different parts are different in shape and size and the range of tool adjustment is large is met, and therefore the possibility of measurement requirements exists in the area above the XY plane of the machine.

Further, the first locating piece comprises a first fastening screw, a second threaded hole is formed in the lower rotating body, the first fastening screw is in threaded connection with the second threaded hole, and the inner end of the first fastening screw abuts against the first sphere.

According to the technical means, the lower rotating body and the first sphere are fastened by tightening the first fastening screw, so that the probability of random rotation of the lower rotating body is reduced, and the measurement accuracy is improved; when the first sphere is required to rotate, the first fastening screw is loosened, so that the upper rotating body can rotate.

Further, the second locating piece comprises a second fastening screw, a third threaded hole is formed in the upper rotating body, the second fastening screw is in threaded connection with the third threaded hole, and the inner end of the second fastening screw abuts against the second sphere.

According to the technical means, the second fastening screw is tightened, so that the upper rotating body and the second sphere are fastened, the probability of random rotation of the upper rotating body is reduced, and the measurement accuracy is improved; when the second sphere is required to rotate, the second fastening screw is loosened, so that the upper rotating body can rotate.

Further, the clamping base is provided with scale marks, and the cross groove I is internally provided with a position mark.

According to the technical means, the specific position during certain measurement is conveniently recorded, so that the next time when the need exists, the direct recovery is realized, the working time is saved, and the working efficiency is improved.

Further, the clamping assembly comprises a supporting chuck and a plurality of clamping jaws, the supporting chuck is fixedly arranged at the top of the upper rotating body, threaded raised strips are integrally formed at the top of the supporting chuck, a spiral dovetail groove is formed in the bottom of each clamping jaw, and the threaded raised strips are clamped in the spiral dovetail groove.

According to the technical means, the clamping device is used for clamping parts, and the clamping positions can be adjusted according to the sizes of different parts so as to adapt to the clamping requirements of the different parts.

Further, the section of the clamping jaw is in a stepped shape, and the height dimension of the upper end face of the clamping jaw is gradually reduced from inside to outside.

According to the technical means, the weight is reduced, and the grabbing of parts is facilitated.

Further, equidistant blocks are arranged between two adjacent clamping jaws, concentric circular sliding rails are integrally formed at the top of the supporting chuck, concentric grooves are formed in the bottoms of the equidistant blocks, and the concentric circular sliding rails are clamped with the concentric grooves.

According to the technical means, the radial adjustment amount in the claw feeding process is consistent.

The application adopting the scheme has the following beneficial effects:

1. through the mutual matching of the clamping base, the lower rotating body, the upper rotating body and the rotating assembly, the multidimensional adjusting effect is achieved, so that the parts can be adjusted to a desired measuring area above the XY plane of the machine and all face to the +Z direction, and the measuring requirements of different parts are flexibly met;

2. through the mutual matching of the cross groove I and the cross groove II, the upper rotating body can reach a horizontal or vertical state, and the adjusting angle is enlarged;

3. the clamping jaw, the equidistant blocks, the thread convex strips, the concentric circular sliding rail, the spiral dovetail groove and the concentric grooves are matched with each other to clamp the parts, and the clamping positions can be adjusted according to the sizes of different parts so as to adapt to the clamping requirements of the different parts;

4. through the mutual cooperation of scale mark and position sign for the concrete position when recording certain measurement, so that directly recover when next time there is the needs, save operating time, improve work efficiency.

Drawings

FIG. 1 is a schematic structural view of a clamping tool for measuring parts;

FIG. 2 is a schematic view of a structure of a clamping tool for measuring parts at a supporting chuck;

FIG. 3 is a schematic cross-sectional view of a jaw in a clamping tool for measuring parts according to the present utility model;

fig. 4 is a schematic structural view of a clamping tool for measuring a part, in which the clamping tool has a maximum inclination angle in an X direction;

fig. 5 is a schematic diagram illustrating a Z-direction clamping of a clamping tool for measuring a part in the present utility model, where the clamping tool is at a maximum inclination angle in an X-direction.

1, clamping a base; 11. scale marks;

2. a lower rotating body; 21. cross groove I; 22. a position mark; 23. a first sphere; 24. a first fastening screw; 25. a locking pin;

3. an upper rotating body; 31. cross groove II; 32. a second fastening screw; 33. a second sphere;

4. a support rod;

5. a support chuck; 51. a claw; 52. equidistant blocks; 53. a thread protruding strip; 54. concentric circular slide rails; 511. a spiral dovetail groove.

Detailed Description

Further advantages and effects of the present utility model will become readily apparent to those skilled in the art from the disclosure herein, by referring to the accompanying drawings and the preferred embodiments. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model. It should be understood that the preferred embodiments are presented by way of illustration only and not by way of limitation.

It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present utility model by way of illustration, and only the components related to the present utility model are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.

As shown in fig. 1, the embodiment provides a clamping tool for measuring parts, which comprises a measuring machine substrate, a clamping base 1 and a lower rotating body 2, wherein the clamping base 1 is fixedly arranged on the measuring machine substrate through bolts, so that the purpose of fixedly installing the clamping base 1 is achieved; the measuring machine substrate is an existing device, and therefore will not be described in detail herein. In this embodiment, the top of the clamping base 1 is provided with a threaded hole, and the lower rotating body 2 is in threaded connection with the threaded hole, so that the positional relationship of the lower rotating body 2 relative to the clamping base 1 is adjustable. A lock pin 25 is inserted at one side of the lower rotating body 2 of the clamping base 1, one end of the lock pin 25 is abutted against the lower rotating body 2, and in the embodiment, the lock pin 25 is in a wedge-shaped block structure, so that the effect of locking the lower rotating body 2 at a specific position of the clamping base 1 is achieved; when the specific position of the lower rotating body 2 needs to be adjusted, the lower rotating body 2 can be rotated by removing the lock pin 25.

As shown in fig. 1, in this embodiment, a rotating component is connected to a lower rotating body 2 through a spherical hinge, a free end of the rotating component is connected to an upper rotating body 3 through a spherical hinge, and a first positioning member is arranged between the rotating component and the lower rotating body 2 for fixing a positional relationship between the rotating component and the lower rotating body 2; a second positioning piece is arranged between the rotating component and the upper rotating body 3 and used for fixing the position relationship between the rotating component and the upper rotating body 3; the upper rotating body 3 is provided with a clamping assembly to achieve the effect of clamping parts and adjusting the specific positions of the parts in a large range.

As shown in fig. 1 and 4, in this embodiment, the rotating assembly includes a first ball 23 and a second ball 33, a first ball groove is provided at the top of the lower rotating body 2, the first ball 23 is rotatably installed in the first ball groove, one end of the first ball 23 is fixedly connected with a supporting rod 4, a free end of the supporting rod 4 is fixedly connected with the second ball 33, the bottom of the upper rotating body 3 is provided with the second ball groove, the second ball 33 is rotatably installed in the second ball groove, and when the tool is adjusted, the specific position of the upper rotating body 3 or the lower rotating body 2 is adjusted by matching the first ball 23 and the second ball 33. In this embodiment, the top of the lower rotating body 2 is provided with the cross groove i 21, the cross groove i 21 is communicated with the first ball groove, the first ball groove is located in the center of the cross groove i 21, the bottom of the upper rotating body 3 is provided with the cross groove ii 31, the cross groove ii 31 is communicated with the second ball groove, the second ball groove is located in the center of the cross groove ii 31, the supporting rod 4 can rotate in the cross groove i 21 and the cross groove ii 31 to a horizontal position, i.e. the supporting rod 4 can rotate in an area above the XY plane of the machine, so that the condition that the measuring requirements of different parts are possible due to different shapes and sizes of the parts and the requirement of tools is large in the area above the XY plane of the machine is met. In this embodiment, the cross groove i 21 and the cross groove ii 31 are set as positive X-direction and positive Y-direction accurate limit grooves for accurate limit.

As shown in fig. 1, in this embodiment, the first positioning member includes a first fastening screw 24, a second threaded hole is formed in the lower rotating body 2, the first fastening screw 24 is screwed into the second threaded hole, the inner end of the first fastening screw 24 abuts against the first sphere 23, the second positioning member includes a second fastening screw 32, a third threaded hole is formed in the upper rotating body 3, the second fastening screw 32 is screwed into the third threaded hole, the inner end of the second fastening screw 32 abuts against the second sphere 33, and by screwing the first fastening screw 24 and the second fastening screw 32, the lower rotating body 2 is fastened with the first sphere 23, the upper rotating body 3 is fastened with the second sphere 33, the probability of random rotation is reduced, and the measurement accuracy is improved; when the first and second balls 23 and 33 are required to be rotated, the upper rotating body 3 is rotated by unscrewing the first and second fastening screws 24 and 32.

As shown in fig. 1, in this embodiment, a scale line 11 is provided on the top of the clamping base 1, and the scale is designed according to the accuracy requirement of limiting; a position mark 22 is arranged in the cross groove I21 and is used for marking the rotation scale of the lower rotating body 2 on the clamping base 1; when in use, the accurate scale position of the lower rotating body 2 is locked through the position mark 22, and a record is made, and the accurate scale position is directly restored when the same part or the same position is measured next time, so that the working time is saved, and the working efficiency is improved.

As shown in fig. 4-5, in this embodiment, the support rod 4 rotates to the cross groove i 21, so that the initial position of the first sphere 23 can be precisely limited, and refer to fig. 4; the support rod 4 rotates to the cross groove II 31, so that the initial position of the second sphere 33 can be accurately limited, and reference is made to fig. 5. If the part is required to rotate in the XY plane to adapt to the direction of the measuring area to the Z direction based on the part measurement requirement, the lock pin 25 is preferentially removed, the lower rotating body 2 is rotated, the accurate scale position of the lower rotating body 2 is locked through the position mark 22, a record is made, and the part is directly restored when the same part or the same position is measured next time, so that the working time is saved, and the working efficiency is improved; if the shape of the part is specific, when the lower rotating body 2 is rotated or the measurement is inconvenient, the first fastening screw 24 and the second fastening screw 32 are loosened, the supporting rod 4 is rotated, and the projection position scale of the supporting rod 4 on the lower rotating body 2 is recorded and used as a resetting basis when the same part or the same position is measured next time. Through the regulation of above multidimension degree for the part all can be adjusted to wanted measurement area above machine XY plane, and all towards +Z to, be used for flexibly handling the measurement demand of different parts. In this embodiment, a hexahedral part is taken as an example, if the left surface, the right surface, the front surface and the rear surface are to be measured, the adjusting range of the part in the machine XZ plane is 0-180 °, and the adjusting range in the YZ plane is also 0-180 °, which is sufficient to ensure that different measuring areas are measured.

As shown in fig. 1 to 3, in the present embodiment, the clamping assembly includes a support chuck 5 and a plurality of jaws 51, the support chuck 5 is screw-coupled to the top of the upper rotating body 3, and screw protrusions 53 are integrally formed on the inner side of the upper surface of the support chuck 5 for driving feeding of the jaws 51 in a radial direction. In the embodiment, the section of each claw 51 is in a step shape, and the height dimension of the upper end surface of each claw 51 is gradually reduced from inside to outside, so that the weight is reduced and the grabbing of parts is facilitated; the bottom of each claw 51 is provided with a spiral dovetail groove 511, and the thread convex strips 53 are clamped in the spiral dovetail grooves 511, so that the claws 51 are fixedly connected to the supporting chuck 5 through the mutual matching of the spiral dovetail grooves 511 and the thread convex strips 53, and the connection is firm.

As shown in fig. 1-2, in this embodiment, the number of the claws 51 is preferably three, each two adjacent claws 51 are connected with equidistant blocks 52, the upper surface of the supporting chuck 5 is integrally formed with a plurality of concentric circular slide rails 54, preferably 2 concentric circular slide rails 54, the bottom of each equidistant block 52 is provided with concentric grooves, the concentric circular slide rails 54 are clamped with the concentric grooves, so that the equidistant blocks 52 are connected to the supporting chuck 5, and the three equidistant blocks 52 are equidistantly arranged along the circumferential direction, so that the adjustment amounts along the radial direction in the feeding process of the claws 51 are consistent; meanwhile, the purpose of locking the three clamping claws 51 at the relative positions is achieved, and the random shaking of the clamping claws 51 is reduced, so that the probability of the measurement result of the clamped part is affected.

1-2, in this embodiment, when the fixture is used, the clampable end of the part is placed on the inner side of the claw 51, the equidistant block 52 is rotated anticlockwise, and the claw 51 is pushed to feed inwards along the thread convex strips 53, so that the effect of clamping the part is achieved; when not in use, the equidistant blocks 52 are rotated clockwise, thereby achieving the effect of loosening the parts.

The clamping tool for part measurement provided by the application is described in detail above. The description of the specific embodiments is only intended to facilitate an understanding of the method of the present application and its core ideas. It should be noted that it will be apparent to those skilled in the art that various improvements and modifications can be made to the present application without departing from the principles of the present application, and such improvements and modifications fall within the scope of the appended claims.

It should be noted that references in the specification to "one embodiment," "an embodiment," "some alternative embodiments," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

The above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model. The technology, shape, and construction parts of the present utility model, which are not described in detail, are known in the art.

Claims

1. The utility model provides a part measurement is with centre gripping frock, includes rotator (2), rotating assembly and last rotator (3), its characterized in that: the bottom of lower rotator (2) is provided with centre gripping base (1), rotating assembly's one end is connected through the spherical hinge with lower rotator (2), and the other end passes through the spherical hinge with last rotator (3), be equipped with first setting element between rotating assembly and lower rotator (2), be equipped with the second setting element between rotating assembly and last rotator (3), be provided with clamping assembly on last rotator (3).

2. The clamping tool for part measurement according to claim 1, wherein: the top of lower rotator (2) has seted up cross groove I (21) and first ball groove, first ball groove is located the central authorities of cross groove I (21), and communicates with each other with cross groove I (21), cross groove II (31) and second ball groove have been seted up to the bottom of last rotator (3), the second ball groove is located the central authorities of cross groove II (31), and communicates with each other with cross groove II (31).

3. The clamping tool for part measurement according to claim 2, wherein: the top of clamping base (1) has seted up first screw hole, lower rotator (2) threaded connection is in first screw hole, clamping base (1) is inserted in one side of lower rotator (2) and is equipped with lockpin (25), the inner of lockpin (25) is held in the top of lower rotator (2).

4. The clamping tool for part measurement according to claim 2, wherein: the rotating assembly comprises a supporting rod (4), one end of the supporting rod (4) is fixedly connected with a first ball body (23), the other end of the supporting rod is fixedly connected with a second ball body (33), the first ball body (23) is rotatably installed in a first ball groove, and the second ball body (33) is rotatably installed in a second ball groove.

5. The clamping tool for part measurement according to claim 4, wherein: the first positioning piece comprises a first fastening screw (24), a second threaded hole is formed in the lower rotating body (2), the first fastening screw (24) is screwed into the second threaded hole, and the inner end of the first fastening screw (24) abuts against the first sphere (23).

6. The clamping tool for part measurement according to claim 4, wherein: the second positioning piece comprises a second fastening screw (32), a third threaded hole is formed in the upper rotating body (3), the second fastening screw (32) is screwed into the third threaded hole, and the inner end of the second fastening screw (32) abuts against the second sphere (33).

7. A clamping fixture for part measurement according to claim 3, wherein: the clamping base (1) is provided with scale marks (11), and a position mark (22) is arranged in the cross groove I (21).

8. The clamping tool for part measurement according to claim 1, wherein: the clamping assembly comprises a supporting chuck (5) and a plurality of clamping jaws (51), the supporting chuck (5) is fixedly arranged at the top of the upper rotating body (3), a threaded raised line (53) is integrally formed at the top of the supporting chuck (5), a spiral dovetail groove (511) is formed in the bottom of the clamping jaws (51), and the threaded raised line (53) is clamped in the spiral dovetail groove (511).

9. The clamping tool for part measurement according to claim 8, wherein: the section of each claw (51) is in a stepped shape, and the height dimension of the upper end face of each claw (51) is gradually reduced from inside to outside.

10. The clamping tool for part measurement according to claim 8, wherein: equidistant blocks (52) are arranged between two adjacent clamping claws (51), concentric circular sliding rails (54) are integrally formed at the top of the supporting chuck (5), concentric grooves are formed in the bottoms of the equidistant blocks (52), and the concentric circular sliding rails (54) are clamped with the concentric grooves.