CN222520973U

CN222520973U - Hole grinding clamp

Info

Publication number: CN222520973U
Application number: CN202421267817.0U
Authority: CN
Inventors: 徐冬生; 汤庆荣; 汤晨冬; 徐维华; 黄建德
Original assignee: Shanghai Yonghua Alloy Tool Co ltd
Current assignee: Shanghai Yonghua Alloy Tool Co ltd
Priority date: 2024-06-05
Filing date: 2024-06-05
Publication date: 2025-02-25
Anticipated expiration: 2034-06-05

Abstract

The utility model relates to a hole grinding fixture, including: the fixture is a Morse taper handle, the side surface of one end of the fixture is provided with an external thread, and one end of the fixture is symmetrically provided with two threaded holes; the center position of the positioning plate is provided with a positioning hole, and the positioning hole is used to place the workpiece, and the positioning plate is symmetrically provided with two first through holes, and the bolts pass through the first through holes and the threaded holes in sequence, and the positioning plate and the fixture are fixedly connected; the locking nut is provided with a limited hole corresponding to the workpiece, and the locking nut is threadedly connected with the external thread at one end of the fixture, and the workpiece is limited in the positioning hole. For different special-shaped workpieces, the utility model can replace the corresponding positioning plate to place the workpiece, and then perform hole grinding.

Description

Hole grinding clamp

Technical Field

The utility model relates to the technical field of processing equipment, in particular to a hole grinding clamp.

Background

In the hole grinding processing of the special-shaped product, the conventional clamp cannot be firmly fixed due to irregular outline or special shape of the special-shaped product. This can lead to instability and distortion during processing, affecting the quality of the process.

Disclosure of utility model

It is an object of the present utility model to provide a hole grinding jig that solves or at least alleviates one or more of the above-mentioned and other problems of the prior art.

To achieve the foregoing object, the present utility model provides a hole grinding jig, wherein the hole grinding jig includes:

The clamp is a Morse taper shank, an external thread is arranged on the side face of one end of the clamp, and two threaded holes are symmetrically formed in one end of the clamp;

The positioning plate is provided with a positioning hole at the center position, the positioning hole is used for placing a workpiece, two first through holes are symmetrically formed in the positioning plate, bolts sequentially penetrate through the first through holes and the threaded holes, and the positioning plate is fixedly connected with the clamp;

The locking nut is provided with a limiting hole corresponding to the workpiece, is in threaded connection with the external thread at one end of the clamp, and limits the workpiece in the positioning hole.

In the hole grinding fixture as described above, optionally, a connecting hole is formed at the other end of the fixture, and a first internal thread is formed on an inner wall of the connecting hole and is used for being in threaded connection with an output shaft of the machine tool.

In the hole grinding clamp as described above, optionally, a second through hole is formed in the center of the clamp.

In the hole grinding fixture as described above, optionally, two third through holes are symmetrically formed in the locating plate, two fourth through holes are symmetrically formed in the fixture, one end of the cylindrical locating pin is located in the third through hole, the other end of the cylindrical locating pin is located in the fourth through hole, a counterweight ejector rod is arranged in the fourth through hole, and the fourth through hole is far away from the inner wall of the locating plate end, is provided with a second internal thread and is used for being in threaded connection with a counterweight bolt.

In the hole grinding fixture as described above, optionally, a runout measuring groove is formed in the side wall of the fixture and near the external thread.

Compared with the prior art, the utility model has the beneficial effects that:

according to the hole grinding clamp, the locating plate is arranged at one end of the clamp, the workpiece is placed in the locating hole of the locating plate, then the workpiece is fixed in the locating hole through the locking nut, the external processing equipment can grind the hole of the workpiece through the limiting hole of the locking nut, and for different special-shaped workpieces, the corresponding locating plate can be replaced for placing the workpiece.

Drawings

FIG. 1 is a schematic view of the structure of a hole grinding jig of the present utility model;

FIG. 2 is a perspective view of the hole grinding jig of the present utility model;

FIG. 3 is an exploded view of the hole grinding jig of the present utility model;

Fig. 4 is a cross-sectional view of the hole grinding jig of the present utility model.

In the figure, 1, a clamp; 2, a locating plate, 3, a lock nut, 4, a threaded hole, 5, a jump measuring groove, 6, a processed piece, 7, a first through hole, 8, a bolt, 9, a limit hole, 10, a connecting hole, 11, a second through hole, 12, a third through hole, 13, a cylindrical locating pin, 14, a counterweight ejector rod, 15 and a counterweight bolt.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.

It should be noted that, in the description of the present utility model, the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and the words "first," "second," and the like used in the description of the present utility model do not denote any order, quantity, or importance, but are merely used to distinguish different constituent parts, and thus are not to be construed as limiting the present utility model.

Furthermore, it should be understood that the dimensions of the various elements shown in the figures are not drawn to actual scale, e.g., the thickness or width of some layers may be exaggerated relative to other layers for ease of description.

It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined or illustrated in one figure, no further detailed discussion or description thereof will be necessary in the following description of the figures.

Fig. 4 is a cross-sectional view of the hole grinding jig 1 of the present utility model. In the figure, a clamp 1, a positioning plate 2, a lock nut 3, etc. are shown.

As shown in fig. 1-4, the clamp 1 is a morse taper shank, an external thread is arranged on the side surface of one end of the clamp 1, and two threaded holes 4 are symmetrically arranged on one end of the clamp 1. The center position of locating plate 2 has seted up the locating hole, and the locating hole is used for placing work piece 6, and two first through-holes 7 have been seted up to the symmetry on the locating plate 2, and bolt 8 passes first through-hole 7 and screw hole 4 in proper order to with locating plate 2 and anchor clamps 1 fixed connection. The lock nut 3 is provided with a limiting hole 9 corresponding to the workpiece 6, the lock nut 3 is in threaded connection with the external thread at one end of the clamp 1, and the workpiece 6 is limited in the positioning hole.

When the fixture is used, the locating plate 2 is arranged at one end of the fixture 1, the workpiece 6 is placed in the locating hole of the locating plate 2, the workpiece 6 is fixed in the locating hole through the lock nut 3, and external processing equipment can grind the workpiece 6 through the limiting hole 9 of the lock nut 3.

Specifically, for different special-shaped workpieces, the corresponding positioning plate 2 can be replaced for placing the workpiece 6. In addition, the first through hole 7 is a countersunk hole, so that the protrusion of the bolt 8 can be avoided, and the flatness of a plane is ensured.

Further, the other end of the clamp 1 is provided with a connecting hole 10, and the inner wall of the connecting hole 10 is provided with a first internal thread and is used for being in threaded connection with an output shaft of a machine tool. The center of the clamp 1 is provided with a second through hole 11.

Further, two third through holes 12 are symmetrically formed in the positioning plate 2, two fourth through holes are symmetrically formed in the clamp 1, one end of the cylindrical positioning pin 13 is located in the third through hole 12, the other end of the cylindrical positioning pin 13 is located in the fourth through hole, a counterweight ejector rod 14 is arranged in the fourth through hole, and a second internal thread is formed in the inner wall of the end, far away from the positioning plate 2, of the fourth through hole and is used for being in threaded connection with a counterweight bolt 15.

Wherein, the cylinder locating pin 13 limits the displacement of the locating plate 2, the counterweight ejector rod 14 is used for counterweight and limits the cylinder locating pin 13. The weight bolt 15 is used to restrict the displacement of the weight jack 14.

Further, a runout measuring groove 5 is formed in the side wall of the clamp 1 and close to the external threads.

Specifically, after the clamp 1 is connected with the machine tool output shaft, the machine tool output shaft drives the clamp 1 to rotate, and the precision of the clamp 1 after being connected with the machine tool can be detected by utilizing the dial indicator.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A hole grinding jig, characterized in that the hole grinding jig comprises:

The clamp (1) is a Morse taper shank, external threads are formed on the side face of one end of the clamp (1), and two threaded holes (4) are symmetrically formed in one end of the clamp (1);

the positioning plate (2), a positioning hole is formed in the center of the positioning plate (2), the positioning hole is used for placing a workpiece (6), two first through holes (7) are symmetrically formed in the positioning plate (2), bolts (8) sequentially penetrate through the first through holes (7) and the threaded holes (4), and the positioning plate (2) is fixedly connected with the clamp (1);

The locking nut (3), limiting holes (9) are formed in the locking nut (3) corresponding to the machined piece (6), the locking nut (3) is in threaded connection with external threads at one end of the clamp (1), and the machined piece (6) is limited in the positioning holes.

2. The hole grinding clamp according to claim 1, wherein a connecting hole (10) is formed in the other end of the clamp (1), and a first internal thread is formed in the inner wall of the connecting hole (10) and is used for being in threaded connection with an output shaft of a machine tool.

3. Hole grinding clamp according to claim 1, characterized in that the centre of the clamp (1) is provided with a second through hole (11) passing through.

4. The hole grinding clamp according to claim 1, wherein two third through holes (12) are symmetrically formed in the positioning plate (2), two fourth through holes are symmetrically formed in the clamp (1), one end of a cylindrical positioning pin (13) is located in the third through hole (12), the other end of the cylindrical positioning pin (13) is located in the fourth through hole, a counterweight ejector rod (14) is arranged in the fourth through hole, and a second internal thread is formed in the inner wall of the end, away from the positioning plate (2), of the fourth through hole and is used for being in threaded connection with a counterweight bolt (15).

5. Hole grinding clamp according to claim 1, characterized in that the side wall of the clamp (1) is provided with a runout measuring groove (5) close to the external thread.