CN114654392A

CN114654392A - Processing centering clamp

Info

Publication number: CN114654392A
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: 2022-06-24
Anticipated expiration: 2042-04-19
Also published as: CN114654392B

Abstract

The invention discloses a pair of machining centering pliers, which comprises a base body, a pliers body, a mounting seat, a tip, a cover plate, a screw, a first shaft shoulder, a second shaft shoulder and a stopping part, wherein the first shaft shoulder is arranged on the base body; the mounting seat is fixedly arranged on the seat body, the clamp bodies are symmetrically arranged on two sides of the mounting seat and fixedly connected with the seat body, the screw rods sequentially penetrate through the two clamp bodies and are 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; first shaft shoulder and second shaft shoulder interval set up on the screw rod, backstop portion corresponds the setting on the pedestal, backstop portion is located between first shaft shoulder and the second shaft shoulder, it is spacing to the screw rod, make the screw rod drive the pincers body and remove at predetermined distance fit-in guide way, can continue to adjust part and top position when the part is fixed by the pincers body, the accuracy of centering has been guaranteed, the blind hole has been seted up on the mount pad, top setting is in the blind hole, the apron sets up on the top terminal surface of mount pad, the apron is spacing to top, avoid the top problem that drops.

Description

Processing centering clamp

Technical Field

The invention belongs to the technical field of equipment processing, and relates to a pair of processing centering pliers.

Background

A caliper (or chuck) will typically include two caliper bodies for holding a part. When centering is required, a tip is required to be arranged between the two clamp bodies for centering, and the clamp with the tip is generally called centering clamp.

The centering clamp in the prior art has the following defects: 1. the center is not limited in the axial direction, so that the center is very easy to fall off. 2. When the part is installed on the caliper, the tip and the part are in hard contact, impact is generated, clamping precision of the part is influenced, and subsequent positioning precision of the tip is possibly influenced.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a pair of machining centering pliers.

In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:

a pair of machining centering pliers comprises a base body, a pliers body, a mounting seat, a tip, a cover plate, a screw, a first shaft shoulder, a second shaft shoulder and a stopping part;

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

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

the first shaft shoulder and the second shaft shoulder are arranged on the screw at intervals, the stopping part is correspondingly arranged on the base body and is positioned between the first shaft shoulder and the second shaft shoulder, and a gap is formed between the stopping part and the first shaft shoulder and between the stopping part and the second shaft shoulder;

the mounting seat is provided with a blind hole, the tip 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 tip.

The invention is further improved in that:

an elastic part is arranged in the blind hole of the mounting seat, and the elastic part is arranged at the bottom of the tip.

The elastic piece comprises a plurality of elastic pads which are arranged in an overlapping mode.

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

the main part is located inside the blind hole, the head is located the port department of blind hole, the head is connected with the one end that the main part is close to the blind hole port, the outside at the head is established to the apron cover.

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 is abutted against the step surface.

The seat body comprises a base and a guide seat;

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

The stopping part penetrates through the guide seat, and the stopping 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 a bolt.

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 machining centering tongs, wherein a base body is provided with a mounting seat, a tip is positioned in the mounting seat, the mounting seat is provided with a cover plate for fixing the tip to limit the tip so as to prevent the tip from falling off, meanwhile, the base body is provided with a stopping part corresponding to a first shaft shoulder and a second shaft shoulder to limit a screw rod, so that the screw rod is matched with a guide groove within a preset distance to drive a tong body to move, the positions of a part and the tip can be continuously adjusted while the part is fixed by the tong body, and the centering accuracy is ensured.

Furthermore, the elastic part is arranged at the bottom of the tip, so that the impact between the part and the tip can be buffered, and the tip is protected from being damaged.

Furthermore, a step surface is formed at the joint of the main body part and the head part of the tip, and the step surface can be matched with the cover plate to better limit the fixation of the tip and prevent the tip from falling off.

Drawings

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

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 seat body; 11-a base; 12-a guide seat; 20-a clamp body; 30-a mounting seat; 40-top; 41-a body portion; 42-a head; 50-a cover plate; 60-an elastic member; 70-a screw; 71-a first shoulder; 72-second shoulder; 73-a stop; 100-part; 121-guide groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of 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 present invention, 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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually arranged when the product of the present invention is used, the description is merely for convenience and simplicity, and the indication or suggestion that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, cannot be understood as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to 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. For example, "horizontal" merely means that the 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 be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The invention is described in further detail below with reference to the accompanying drawings:

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

in the embodiment of the present invention, the base 10 includes a base 11 and two guide bases 12, the guide bases 12 are fixed on the base 11 by bolts, and the two pliers bodies 20 are symmetrically disposed on the guide bases 12 and can move toward and away from each other to clamp or unclamp the component 100.

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

In the embodiment of the present invention, the center 40 includes a cylindrical main body portion 41 and a head portion 42 integrally formed on the main body portion 41, the diameter of the main body portion 40 is larger than the diameter of the connecting surface between the head portion 42 and the main body portion 40, so that a step surface is formed between the main body portion 41 and the head portion 42, the main body portion 41 extends into the blind hole, and the center 40 is used for abutting against the end portion of the component 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 portion 42, and a part of the end surface of the cover plate 50 is used for abutting against a step surface to limit the main body portion 41 from being pulled out of the blind hole.

In the preferred embodiment of the present invention, an elastic member 60 is disposed 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 the embodiment, the elastic member 60 enables the tip 40 to have a certain telescopic capability, when the part 100 is clamped, the tip 40 can effectively buffer the impact between the part 100 and the tip 40 by means of the deformation of the elastic member 60, so that the positioning can be more accurate, and the tip 40 can be effectively protected from being damaged.

Further, in the embodiment of the present invention, the guide seat 12 is provided with a guide groove 121 penetrating in the radial direction, and the two caliper bodies 20 can move along the guide groove 121 by matching with the guide groove 121 to approach or separate. Specifically, the screw 70 is threaded through the clamp body 20, and the screw 70 and the clamp body 20 form a screw transmission, so that the clamp body 20 can be driven to move by screwing the screw 70 to clamp or unclamp the part 100.

Further, in the embodiment of the present invention, a first shoulder 71 and a second shoulder 72 are formed in the middle of the screw 70, and the first shoulder 71 and the second shoulder 72 are disposed opposite to each other; the guide base 12 is provided with a stopping portion 73, and the stopping portion 73 extends between the first shoulder 71 and the second shoulder 72 and has a preset distance with the first shoulder 71 and the second shoulder 72 respectively.

The stopping portion 73 has a preset distance with the first shoulder 71 and the second shoulder 72, so that the screw 70 can drive the two caliper bodies 20 to be adjusted in an axially adaptive manner synchronously, and further the relative position relationship between the caliper body 20 and the tip 40 can be adjusted, and further: when the pliers body 20 clamps the workpiece 100, the head 42 of the center 40 can always enter the centering hole of the workpiece 100.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement 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 base body (10), a clamp body (20), a mounting seat (30), a tip (40), a cover plate (50), a screw (70), a first shaft shoulder (71), a second shaft shoulder (72) and a stopping part (73);

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

the screw rod (70) penetrates through the two clamp bodies (20) in sequence and is fixedly connected with the clamp bodies (20), and the screw rod (70) is positioned on 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 stopping part (73) is correspondingly arranged on the base body (10), the stopping part (73) is positioned between the first shaft shoulder (71) and the second shaft shoulder (72), and a gap is formed between the stopping part (73) and the first shaft shoulder (71) as well as the second shaft shoulder (72);

the mounting seat (30) is provided with a blind hole, the tip (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 tip (40).

2. A machining centring clamp according to claim 1, characterised in that the blind hole of the mounting seat (30) is provided with a resilient member (60), the resilient member (60) being provided at the bottom of the point (40).

3. A machine-centering clamp according to claim 2, wherein said elastic member (60) comprises a plurality of elastic pads, which are arranged one above the other.

4. A machining centring clamp according to claim 1, characterised in that said point (40) comprises a main body portion (41) and a head portion (42);

the main part (41) is located inside the blind hole, the head (42) is located the port department of blind hole, head (42) and main part (41) are close to the one end of blind hole port and are connected, the outside at head (40) is established in cover plate (50) cover.

5. A machining centring clamp according to claim 4 characterised in that the diameter of the face of the head (42) which is connected to the body (41) is less than the diameter of the body (41), the outer side of the face of the head (42) which is connected to the body (41) forming a step against which the end face of the cover plate (50) abuts.

6. A machining centring clamp according to claim 1, characterized in that said seating body (10) comprises a base (11) and a guide seat (12);

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

7. A machining centring clamp according to claim 6, characterized in that said stop (73) is inserted through the guide (12), the stop (73) being bolted to the guide (12).

8. A machining centring clamp according to claim 7, characterized in that said guide groove (121) opens onto the guide seat (12).

9. A machining centring clamp according to claim 6, characterized in that said guide (12) is fixedly connected to the base (11) by means of bolts.

10. A machine tool vise according to any one of claims 1 to 8, characterised in that the cover plate (50) is fixed to the mounting base (30) by means of bolts.