CN114654392B

CN114654392B - Machining centering clamp

Info

Publication number: CN114654392B
Application number: CN202210436989.5A
Authority: CN
Inventors: 汤丽; 刘学明; 余杰; 何坚; 齐玮凤; 王辉; 吴动波; 梁嘉炜
Original assignee: AECC Aviation Power Co Ltd
Current assignee: AECC Aviation Power Co Ltd
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2024-01-02
Anticipated expiration: 2042-04-19
Also published as: CN114654392A

Abstract

The invention discloses a processing centering clamp, which comprises a seat body, a clamp body, a mounting seat, a center, a cover plate, a screw, a first shaft shoulder, a second shaft shoulder and a stop part, wherein the clamp body is provided with a clamping groove; the installation seat is fixedly arranged on the seat body, the clamp bodies are symmetrically arranged on two sides of the installation seat, the clamp bodies are fixedly connected with the seat body, the screw rod sequentially penetrates through the two clamp bodies and is fixedly connected with the clamp bodies, the guide groove is formed in the seat body, and the clamp bodies can move along the guide groove; the first shaft shoulder and the second shaft shoulder are arranged on the screw at intervals, the stop parts are correspondingly arranged on the seat body, the stop parts are located between the first shaft shoulder and the second shaft shoulder and limit the screw, the screw is matched with the guide grooves in a preset distance to drive the clamp body to move, the parts can be continuously adjusted to be positioned at the same time of being fixed by the clamp body, centering accuracy is guaranteed, the blind holes are formed in the mounting seat, the centers are arranged in the blind holes, the cover plate is arranged on the top end face of the mounting seat and limits the centers, and the problem that the centers fall off is avoided.

Description

Machining centering clamp

Technical Field

The invention belongs to the technical field of equipment machining, and relates to a machining centering clamp.

Background

The caliper (or chuck) will typically include two caliper bodies for holding the parts. When centering is required, a tip is also provided between the two caliper bodies for centering, and a caliper with a tip is generally called a centering caliper.

The centering pliers in the prior art have the following defects: 1. the center is not limited in the axial direction, so that the center is easy to fall off. 2. When the part is mounted on the caliper, the center is in hard contact with the part, so that impact is generated, the clamping precision of the part is further affected, and the follow-up positioning precision of the center is possibly affected.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a processing centering clamp.

In order to achieve the purpose, the invention is realized by adopting the following technical scheme:

a processing centering clamp comprises a seat body, a clamp body, a mounting seat, a center, a cover plate, a screw, a first shaft shoulder, a second shaft shoulder and a stop part;

the mounting seat is fixedly arranged on the seat body, the clamp bodies are symmetrically arranged on two sides of the mounting seat, the clamp bodies are connected with the seat body, the guide grooves are formed in the seat body, and the clamp bodies can move along the guide grooves;

the screw rod sequentially penetrates through the two clamp bodies and is fixedly connected with the clamp bodies, and the screw rod is positioned at the lower side of the mounting seat;

the first shaft shoulder and the second shaft shoulder are arranged on the screw at intervals, the stop parts are correspondingly arranged on the seat body, the stop parts are positioned between the first shaft shoulder and the second shaft shoulder, and a gap exists between the stop parts and the first shaft shoulder and the second shaft shoulder;

the mounting seat is provided with a blind hole, the center is arranged in the blind hole, the cover plate is arranged on the top end face of the mounting seat, and the cover plate is sleeved on the outer side of the center.

The invention further improves that:

an elastic piece is arranged in the blind hole of the mounting seat and is arranged at the bottom of the center.

The elastic piece comprises a plurality of elastic pads, and the elastic pads are arranged in a superposition manner.

The center comprises a main body part and a head part;

the main body part is located inside the blind hole, the head part is located at the port of the blind hole, the head part is connected with one end, close to the port of the blind hole, of the main body part, and the cover plate is sleeved on the outer side of the head part.

The diameter of the connecting surface of the head part and the main body part is smaller than that of the main body part, a step surface is formed on the outer side of the connecting surface of the head part and the main body part, and the end surface of the cover plate abuts against the step surface.

The seat body comprises a base and a guide seat;

the guide seat is arranged on the upper end face of the base, the guide seat is rigidly connected with the base, and the stop part is arranged on the guide seat.

The guide seat is penetrated by the stop part, and the stop part is connected with the guide seat through a bolt.

The guide groove is formed in the guide seat.

The guide seat is fixedly connected with the base through bolts.

The cover plate is fixed with the mounting seat through bolts.

Compared with the prior art, the invention has the following beneficial effects:

the invention discloses a pair of processing centering pliers, wherein a mounting seat is arranged on a seat body, a center is positioned in the mounting seat, a cover plate is arranged on the mounting seat and used for fixing the center, limiting the center and preventing the center from falling off, and meanwhile, a stop part corresponding to a first shaft shoulder and a second shaft shoulder is arranged on the seat body and used for limiting a screw rod, so that the screw rod is matched with a guide groove to drive the pliers body to move within a preset distance, the positions of the part and the center can be continuously adjusted while the part is fixed by the pliers body, and the centering accuracy is ensured.

Furthermore, the elastic piece is arranged at the bottom of the center, so that the impact between the part and the center can be buffered, and the center is protected from damage.

Furthermore, the invention forms a step surface at the joint of the main body part and the head part of the center, and the step surface is matched with the cover plate, so that the fixing of the center can be better limited, and the center is prevented from falling off.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a front cross-sectional view of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;

fig. 3 is a top view of the present invention.

Wherein: 10-a base; 11-a base; 12-a guide seat; 20-pliers body; 30-mounting seats; 40-center; 41-a main body portion; 42-head; 50-cover plate; 60-elastic member; 70-screw; 71-a first shoulder; 72-a second shoulder; 73-a stop; 100 parts; 121-guide grooves.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "upper," "lower," "horizontal," "inner," and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the term "horizontal" if present does not mean that the component is required to be absolutely horizontal, but may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 invention can be understood by those of ordinary skill in the art according to the specific circumstances.

The invention is described in further detail below with reference to the attached drawing figures:

referring to fig. 1-3, an embodiment of the present invention discloses a machining centering clamp, which comprises a base 10, a base 11, a guide holder 12, a clamp body 20, a mounting holder 30, a tip 40, a main body 41, a head 42, a cover plate 50, an elastic member 60, a screw 70, a first shaft shoulder 71, a second shaft shoulder 72, a stop portion 73, a part 100 and a guide groove 121;

in the embodiment of the invention, the seat body 10 comprises a base 11 and a guide seat 12, the guide seat 12 is fixed on the base 11 through bolts, two clamp bodies 20 are symmetrically arranged on the guide seat 12, and the clamp bodies can move close to and away from each other to clamp or unclamp the part 100.

The mounting seat 30 is fixed in the middle of the guide seat 12 through a bolt, a blind hole is formed in the middle of the mounting seat 30, and the blind hole is the geometric center of the clamped part 100.

In the embodiment of the present invention, the tip 40 includes a cylindrical main body 41 and a head 42 integrally formed on the main body 41, where the diameter of the main body 40 is greater than the diameter of the connection surface between the head 42 and the main body 40, so that a step surface is formed between the main body 41 and the head 42, the main body 41 extends into the blind hole, and the tip 40 is used to abut against the end of the part 100. The cover plate 50 is covered on the mounting seat 30 by a fastener, the cover plate 50 is sleeved on the outer side of the head 42, and a part of end face of the cover plate 50 is used for abutting against the step surface so as to limit the main body 41 from falling out of the blind hole.

In the preferred embodiment of the present invention, an elastic member 60 is provided between the bottom of the blind hole and the main body 41. The elastic member 60 is formed by stacking a plurality of elastic pads. In this embodiment, the elastic member 60 enables the center 40 to have a certain expansion capability, and when the part 100 is clamped, the center 40 can effectively buffer the impact between the part 100 and the center 40 by means of the deformation of the elastic member 60, so that the positioning is more accurate, and the center 40 can be effectively protected from being damaged.

Further, in the embodiment of the present invention, the guide seat 12 is provided with a radially penetrating guide groove 121, and the two pliers bodies 20 can move along the guide groove 121 to approach or separate from each other by being matched with the guide groove 121. Specifically, the screw 70 is arranged on the clamp body 20 in a penetrating way, and the screw 70 and the clamp body 20 form screw transmission, so that the clamp body 20 can be driven to move by screwing the screw 70 to realize clamping or unclamping of the part 100.

Further, in the embodiment of the present invention, a first shaft shoulder 71 and a second porridge shoulder 72 are formed at the middle part of the screw 70, and the first shaft shoulder 71 and the second shaft shoulder 72 are disposed opposite to each other; the guide seat 12 is provided with a stop part 73, and the stop part 73 extends into the space between the first shaft shoulder 71 and the second shaft shoulder 72 and has a preset distance with the first shaft shoulder 71 and the second shaft shoulder 72 respectively.

The stopper 73 has the preset distance with the first shoulder 71 and the second shoulder 72, so that the screw 70 can drive the synchronous axial self-adaptive adjustment of the two pliers bodies 20, and further can adjust the relative position relationship between the pliers bodies 20 and the center 40, and further makes: with the clamp body 20 gripping the part 100 being machined, the head 42 of the tip 40 is always able to enter the centering hole of the part 100.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The machining centering clamp is characterized by comprising a seat body (10), a clamp body (20), a mounting seat (30), a center (40), a cover plate (50), a screw (70), a first shaft shoulder (71), a second shaft shoulder (72) and a stop part (73);

the clamp body (20) is symmetrically arranged on two sides of the mounting seat (30), the clamp body (20) is connected with the seat body (10), the guide groove (121) is formed in the seat body (10), and the clamp body (20) can move along the guide groove (121);

the screw (70) sequentially penetrates through the two clamp bodies (20) and is fixedly connected with the clamp bodies (20), and the screw (70) is positioned at the lower side of the mounting seat (30);

the first shaft shoulder (71) and the second shaft shoulder (72) are arranged on the screw rod (70) at intervals, the stop part (73) is correspondingly arranged on the seat body (10), the stop part (73) is positioned between the first shaft shoulder (71) and the second shaft shoulder (72), and a gap exists between the stop part (73) and the first shaft shoulder (71) and the second shaft shoulder (72);

the mounting seat (30) is provided with a blind hole, the center (40) is arranged in the blind hole, the cover plate (50) is arranged on the top end face of the mounting seat (30), and the cover plate (50) is sleeved on the outer side of the center (40).

2. Machining centering clamp according to claim 1, characterized in that an elastic member (60) is arranged in the blind hole of the mounting seat (30), the elastic member (60) being arranged at the bottom of the tip (40).

3. A machining centering clamp according to claim 2, characterized in that the elastic member (60) comprises a plurality of elastic pads, the plurality of elastic pads being arranged in a superimposed manner.

4. A machining centering clamp according to claim 1, characterized in that the tip (40) comprises a body portion (41) and a head portion (42);

the main body part (41) is located inside the blind hole, the head part (42) is located at the port of the blind hole, the head part (42) is connected with one end, close to the port of the blind hole, of the main body part (41), and the cover plate (50) is sleeved on the outer side of the head part (42).

5. The machining centering clamp according to claim 4, wherein the diameter of the connecting surface of the head part (42) and the main body part (41) is smaller than the diameter of the main body part (41), the outer side of the connecting surface of the head part (42) and the main body part (41) forms a step surface, and the end surface of the cover plate (50) is abutted against the step surface.

6. Machining centering clamp according to claim 1, characterized in that the seat (10) comprises a base (11) and a guide seat (12);

the guide seat (12) is arranged on the upper end face of the base (11), the guide seat (12) is rigidly connected with the base (11), and the stop part (73) is arranged on the guide seat (12).

7. The machining centering clamp according to claim 6, wherein the stop part (73) penetrates through the guide seat (12), and the stop part (73) is connected with the guide seat (12) through a bolt.

8. Machining centering clamp according to claim 7, characterized in that the guide groove (121) is provided on the guide seat (12).

9. Machining centering clamp according to claim 6, characterized in that the guide holder (12) is fixedly connected with the base (11) by means of bolts.

10. A machining centering clamp as claimed in any one of claims 1 to 8, characterised in that the cover plate (50) is secured to the mounting base (30) by bolts.