CN211332341U

CN211332341U - Square frock clamp

Info

Publication number: CN211332341U
Application number: CN201922454577.0U
Authority: CN
Inventors: 薛肇江; 唐俊; 刘爱宗; 张启标
Original assignee: Huirun Electrical Co ltd
Current assignee: Huirun Electrical Co ltd
Priority date: 2019-12-28
Filing date: 2019-12-28
Publication date: 2020-08-25
Anticipated expiration: 2029-12-28

Abstract

The utility model discloses a square tool clamp, the rear end face of a connecting and supporting seat is fixed on a machine tool, two clamping jaws are arranged on the front end face of the connecting and supporting seat in a relative sliding way, the two clamping jaws can be relatively close to or far away, and the moving direction is vertical to the axis direction of the connecting and supporting seat; the axis that the sliding sleeve can follow joint support seat slides, the shifting block rotates and sets up in the inner chamber of joint support seat, the sliding sleeve can drive the atress end rotation of shifting block, when the sliding sleeve does not have axial displacement, axial effort is applyed to the atress end of shifting block, the shifting block is the form of buckling, the end of stirring of shifting block can press down two clamping jaws and be close to relatively, convert sliding sleeve axial effort into vertically axial effort, set up wedge-shaped clamp dress face on the clamping jaw, the square work piece of two clamping jaw cooperation centre gripping, for through the clamping of spring effort, the device can realize more stable effectual pressing from both sides dress, avoid in the course of working part departure to hinder the people.

Description

Square frock clamp

Technical Field

The utility model relates to a machining technology field further relates to a square frock clamp.

Background

The square aluminum alloy end covers are arranged in the servo motor and the stepping motor, the requirement on the perpendicularity between a central bearing hub hole and an end face is high, an inner hole and the end face need to be machined simultaneously in one-step clamping, the end cover of the small motor can be directly clamped on a lathe by a spring chuck for turning, but the large motor end cover machined on the small lathe cannot be directly clamped by the spring chuck, and the work is easy to fly out and hurt people.

For small-scale production, the cost of purchasing a large-scale machine tool is too high, and for those skilled in the art, how to design a clamp capable of stably clamping a large square workpiece is a technical problem to be solved at present.

SUMMERY OF THE UTILITY MODEL

The utility model provides a square frock clamp can stabilize the great square work piece of centre gripping, and concrete scheme is as follows:

a square frock clamp includes:

the rear end face of the connecting supporting seat is fixed on a machine tool;

the two clamping jaws are arranged on the front end face of the connecting and supporting seat in a relatively sliding mode, and the sliding direction of the clamping jaws is perpendicular to the axial direction of the connecting and supporting seat; the clamping jaw is provided with a wedge-shaped clamping surface;

the shifting block is bent and is rotatably arranged in the inner cavity of the connecting support seat, and the shifting end of the shifting block can press the two clamping jaws to be relatively close to each other;

the sliding sleeve can slide along the axis of the connecting and supporting seat, and the sliding sleeve can drive the stress end of the shifting block to rotate.

Optionally, a shifting lug is annularly and convexly arranged on the front end of the sliding sleeve, and when the shifting lug moves inwards, a rotational acting force is applied to the stressed end of the shifting block.

Optionally, the clamping jaw is fixedly connected with a sliding block, the sliding block is located on the inner surface of the front end face of the connecting and supporting seat, and the clamping jaw and the sliding block are connected through a guide hole formed in the front end face of the connecting and supporting seat and guided to slide;

and the shifting end of the shifting block is in matched compression joint with the step surface on the sliding block.

Optionally, the periphery of the poking lug is provided with a conical inclined surface, and when the sliding sleeve moves outwards, acting force for reverse movement is applied to the sliding block.

Optionally, the connection supporting seat includes a lathe flange, a connecting flange and a main positioning flange, the lathe flange constitutes a rear end face of the connection supporting seat, the main positioning flange constitutes a front end face of the connection supporting seat, and the cylindrical connecting flange is fixedly connected to the lathe flange and the main positioning flange.

Optionally, the sliding sleeve is hollow inside and sleeved on a fixed shaft, and the fixed shaft is fixed on the main positioning flange.

Optionally, the outer peripheral side wall of the connecting flange is provided with a support in a protruding manner, and the shifting block is rotatably arranged on a rotating shaft of the support.

The utility model provides a square tool clamp, the rear end face of a connecting and supporting seat is fixed on a machine tool, two clamping jaws are arranged on the front end face of the connecting and supporting seat in a relative sliding manner, the two clamping jaws can be relatively close to or far away from each other, and the moving direction is vertical to the axis direction of the connecting and supporting seat; the axis that the sliding sleeve can follow joint support seat slides, the shifting block rotates and sets up in the inner chamber of joint support seat, the sliding sleeve can drive the atress end rotation of shifting block, when the sliding sleeve does not have axial displacement, axial effort is applyed to the atress end of shifting block, the shifting block is the form of buckling, the end of stirring of shifting block can press down two clamping jaws and be close to relatively, convert sliding sleeve axial effort into vertically axial effort, set up wedge-shaped clamp dress face on the clamping jaw, the square work piece of two clamping jaw cooperation centre gripping, for through the clamping of spring effort, the device can realize more stable effectual pressing from both sides dress, avoid in the course of working part departure to hinder the people.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a partial sectional isometric view of a specific embodiment of a square tooling fixture provided by the present invention;

FIG. 2A is a schematic illustration of a jaw clamping process;

figure 2B is a schematic illustration of the jaw release process.

The figure includes:

the lathe positioning device comprises a connecting support seat 1, a lathe flange 11, a connecting flange 12, a support 121, a main positioning flange 13, a clamping jaw 2, a shifting block 3, a sliding sleeve 4, a shifting lug 41, a sliding block 5 and a fixed shaft 6.

Detailed Description

The core of the utility model is to provide a square tool clamp, which can stabilize a square workpiece with a large clamping area.

In order to make those skilled in the art better understand the technical solution of the present invention, the following will describe the square tooling clamp of the present invention in detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is an isometric view, partially in section, of a specific embodiment of a square tooling fixture according to the present invention, and fig. 2A and 2B are front views corresponding to fig. 1, respectively; the utility model discloses a square frock clamp includes joint support seat 1, clamping jaw 2, shifting block 3, sliding sleeve 4 isotructure, and wherein joint support seat 1's rear end face is fixed on the lathe, and when being applied to the lathe, joint support seat 1 is along with the lathe main shaft synchronous rotation. The connection supporting seat 1 is of a shell structure, other components are mounted in an inner cavity, the connection supporting seat 1 comprises a front end face and a rear end face, the front end face refers to one end extending outwards, the rear end face refers to one end close to the inside, the right end in the figure 1 is the front end face, and the left end is the rear end face.

The two clamping jaws 2 are arranged, the two clamping jaws 2 are arranged on the front end face of the connecting and supporting seat 1 in a relatively sliding mode, and the sliding direction of the clamping jaws 2 is perpendicular to the axial direction of the connecting and supporting seat 1; set up wedge-shaped clamping face on the clamping jaw 2, set up two inclined planes that are certain contained angle on every clamping jaw 2, the inclined plane contained angle is 90 degrees, can cooperate with the apex angle of square workpiece, when two clamping jaws 2 are close to relatively, two relative apex angles of centre gripping work piece respectively, stabilize the centre gripping with the work piece.

The shifting block 3 is bent and is of an L-shaped block structure with 90 bends, and two ends of the shifting block 3 are a shifting end and a stress end respectively; the shifting block 3 is rotatably arranged in an inner cavity of the connection supporting seat 1, the number of the shifting block 3 is equal to that of the clamping jaws 2, each shifting block 3 corresponds to one clamping jaw 2, the rotating shaft is approximately positioned at a folding angle, and the shifting end of the shifting block 3 is contacted with the clamping jaw 2, so that the two clamping jaws 2 can be pressed to be relatively close to each other.

The sliding sleeve 4 can slide along the axis of the connecting support seat 1, the sliding sleeve 4 can drive the stress end of the shifting block 3 to rotate, when the sliding sleeve 4 drives the stress end of the shifting block 3 to rotate relatively, the shifting end of the shifting block 3 rotates synchronously, and the shifting end applies pressure perpendicular to the axis direction to the clamping jaw 2; two shifting blocks 3 are in symmetrical motion, two clamping jaws 2 are in symmetrical motion, two shifting blocks 3 are driven to rotate synchronously through a sliding sleeve 4, and each shifting block 3 drives the clamping jaw 2 to move symmetrically, so that a workpiece is clamped or loosened.

Because set up wedge-shaped clamping face on the clamping jaw 2, consequently can be used to the square work piece of the not unidimensional of centre gripping, the utility model discloses an anchor clamps pass through the transmission of mechanical force mutually supporting, for traditional through the tight mode of spring clamp, can the clamping piece more steadily, avoid flying off in the course of working.

On the basis of the above scheme, the utility model discloses set up at the front end annular protrusion of sliding sleeve 4 and stir lug 41, stir the cross-sectional area of lug 41 and be greater than the cross-sectional area of the main part of sliding sleeve 4, when sliding sleeve 4 along axial displacement, also when the lateral shifting in fig. 2A, stir lug 41 or with the stress end contact of shifting block 3, exert horizontal effort to the stress end, make the stress end rotate; when the toggle convex block 41 moves inwards, a rotating acting force is applied to the stressed end of the toggle block 3, an arrow in fig. 2A indicates the component movement direction in the clamping process, when the toggle convex block 41 moves leftwards along the axis, the acting force is applied to the stressed end of the toggle block 3, the toggle block 3 rotates clockwise, the toggle end of the toggle block 3 has the tendency of moving downwards, so that the clamping jaw can move downwards, fig. 2A shows the movement process of the upper toggle block 3 and the clamping jaw 2, and the lower toggle block 3 and the clamping jaw 2 move symmetrically.

Clamping jaw 2 fixed connection slider 5, clamping jaw 2 is located the surface of joint support seat 1 preceding terminal surface, slider 5 is located the internal surface of joint support seat 1 preceding terminal surface, clamping jaw 2 and slider 5 are connected and the direction slides through the guiding hole that sets up on the preceding terminal surface of joint support seat 1, clamping

jaw

2 and 5 accessible bolt fixed connection of slider, set up convex lug structure on slider 5 or clamping jaw 2, the width of lug is equal basically with the guiding hole width that sets up on the preceding terminal surface of joint support seat 1, joint support seat 1 can lead to clamping jaw 2 and make rectilinear movement.

A step surface is arranged on the sliding block 5, the poking end of the poking block 3 is in matched pressure joint with the step surface on the sliding block 5, the poking end of the sliding block 5 directly applies acting force to the sliding block 5, and the sliding block 5 and the clamping jaw 2 move synchronously. The structure that the clamping jaw 2 is assembled with the sliding block 5 is arranged, so that the movement of the clamping jaw 2 is more stable, and the assembly is convenient.

The periphery of the poking lug 41 is provided with a conical inclined plane, and when the sliding sleeve 4 moves outwards, acting force for reverse movement is applied to the sliding block 5; the arrow in fig. 2B indicates the movement pattern of the part in the release state, when the sliding sleeve 4 moves rightwards, the conical surface on the periphery of the sliding sleeve 4 is matched with the conical surface on the sliding block 5, so that the sliding block 5 moves upwards, and the clamping jaw 2 moves upwards synchronously to release the workpiece. Fig. 2B shows the movement process of the upper slide block 5 and the clamping jaw 2, and the lower slide block 5 and the clamping jaw 2 move symmetrically.

On the basis of any one of the above technical schemes and the mutual combination thereof, the connection supporting seat 1 of the utility model comprises a lathe flange 11, a connecting flange 12 and a main positioning flange 13, wherein the lathe flange 11 forms the rear end face of the connection supporting seat 1, and the lathe flange 11 is a circular structure with a through hole arranged at the center; the main positioning flange 13 forms the front end face of the connecting and supporting seat 1, the cylindrical connecting flange 12 is fixedly connected with the lathe flange 11 and the main positioning flange 13, the lathe flange 11, the connecting flange 12 and the main positioning flange 13 are relatively fixed to form a cylindrical space, the sliding sleeve 4 is relatively fixed with a pull rod on a machine tool, the pull rod moves to drive the sliding sleeve 4 to synchronously move, and the clamping jaw 2 is driven to open or loosen a workpiece through a series of transmission processes.

Specifically, the utility model provides an inside cavity of sliding sleeve 4, the suit is on dead axle 6, plays the guide effect to sliding sleeve 4 by dead axle 6, and dead axle 6 is fixed on main flange 13.

The protruding support 121 that sets up of the periphery lateral wall of flange 12, shifting block 3 rotate and set up in the pivot of support 121, only set up two supports 121 in the protruding of the periphery of flange 12, do not need the volume of whole increase flange 12 to simplify holistic structure.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a square frock clamp which characterized in that includes:

the rear end face of the connecting supporting seat (1) is fixed on a machine tool;

the two clamping jaws (2) are arranged on the front end face of the connecting and supporting seat (1) in a relatively sliding mode, and the sliding direction of the clamping jaws (2) is perpendicular to the axial direction of the connecting and supporting seat (1); the clamping jaw (2) is provided with a wedge-shaped clamping surface;

the shifting block (3) is bent, the shifting block (3) is rotatably arranged in an inner cavity of the connecting support seat (1), and the shifting end of the shifting block (3) can press the two clamping jaws (2) to be relatively close to each other;

the sliding sleeve (4) can slide along the axis of the connecting and supporting seat (1), and the sliding sleeve (4) can drive the stress end of the shifting block (3) to rotate.

2. The square tool clamp according to claim 1, wherein a toggle bump (41) is annularly and convexly arranged on the front end of the sliding sleeve (4), and when the toggle bump (41) moves inwards, a rotational acting force is applied to the stressed end of the toggle block (3).

3. The square tool clamp according to claim 2, wherein the clamping jaw (2) is fixedly connected with a sliding block (5), the sliding block (5) is positioned on the inner surface of the front end face of the connecting and supporting seat (1), and the clamping jaw (2) and the sliding block (5) are connected and guided to slide through a guide hole arranged on the front end face of the connecting and supporting seat (1);

the poking end of the poking block (3) is in matched pressure joint with the step surface on the sliding block (5).

4. The square tooling clamp according to claim 3, wherein a tapered slope is arranged on the periphery of the toggle projection (41), and when the sliding sleeve (4) moves outwards, an acting force for reverse movement is applied to the sliding block (5).

5. A square tooling clamp according to any one of claims 1 to 4, wherein the connection support base (1) comprises a lathe flange (11), a connecting flange (12) and a main positioning flange (13), the lathe flange (11) constitutes a rear end face of the connection support base (1), the main positioning flange (13) constitutes a front end face of the connection support base (1), and the connecting flange (12) in a cylindrical shape fixedly connects the lathe flange (11) and the main positioning flange (13).

6. A square tooling clamp according to claim 5, wherein the sliding sleeve (4) is hollow inside and is sleeved on a fixed shaft (6), and the fixed shaft (6) is fixed on the main positioning flange (13).

7. The square tool clamp according to claim 5, wherein a support (121) is convexly arranged on the peripheral side wall of the connecting flange (12), and the shifting block (3) is rotatably arranged on a rotating shaft of the support (121).