CN218927026U

CN218927026U - Clamp for improving machining precision of dovetail groove

Info

Publication number: CN218927026U
Application number: CN202320051186.8U
Authority: CN
Inventors: 郭志玲; 闫玉春; 田鹏
Original assignee: Xiangyang Tianhao Machinery Co ltd
Current assignee: Xiangyang Tianhao Machinery Co ltd
Priority date: 2023-01-09
Filing date: 2023-01-09
Publication date: 2023-04-28
Anticipated expiration: 2033-01-09

Abstract

The utility model discloses a clamp for improving the machining precision of a dovetail groove, which comprises a workpiece fixing frame; the workpiece fixing screws are uniformly distributed on the left end face and the right end face of the workpiece fixing frame through threads; the two angle rotating rods are respectively fixed on the front end face and the rear end face of the workpiece fixing frame; the angle dial is fixed on the angle rotating rod through a bearing; the clamp base is fixed with the angle rotating rod through a vertical plate, the vertical plate is connected with the angle rotating rod through a bearing, and the clamp base is provided with an angle rotating rod fixing device; the workpiece fixing frame realizes angle fixing through the angle rotating rod fixing device. Be equipped with the angle scale on this application device, with the rotation angle of work piece fixed frame accurate for the processing angle between dovetail processing milling cutter and the work piece is accurate, and then improves the machining precision of dovetail.

Description

Clamp for improving machining precision of dovetail groove

Technical Field

The utility model relates to the technical field of clamps for machining dovetail grooves of workpieces, in particular to a clamp for improving machining accuracy of dovetail grooves.

Background

The dovetail groove is a mechanical structure, the shape of the groove is #, and the dovetail groove is used for mechanical relative movement. The device has the characteristics of high motion precision and stability. The dovetail groove is often used in cooperation with the trapezoid guide rail, plays a role in guiding and supporting, and is often used in scenes such as a carriage of a machine tool. The unique structure of the dovetail groove enables the dovetail groove to be processed only by a special forming milling cutter, namely the dovetail groove milling cutter. The dovetail grooves with different angles are processed by milling cutters with different angles, and if the workpiece needs to be processed with symmetrical dovetail grooves on two sides, the clamping is needed for one time, and the dovetail grooves on two ends are milled successively. The characteristics of the dovetail groove enable the dovetail groove to be fed once and formed once, and if the levelness of the two ends cannot meet the requirements due to uneven clamping or the workpiece cannot reach the standard due to other conditions, the dovetail groove cannot be repaired like other common milling processes, and the workpiece can only be used as a waste. Therefore, the clamping of the workpiece for machining the dovetail groove becomes important due to the fact that the dovetail groove is machined. Particularly, when the inclination angle of the dovetail groove is processed, if the angle deviation occurs, the processing quality of the dovetail groove is affected.

Disclosure of Invention

In view of the above-described drawbacks or shortcomings in the prior art, it is desirable to provide a jig that improves the machining accuracy of a dovetail groove.

According to the technical scheme that this embodiment provided, a improve anchor clamps of dovetail machining precision, through a plurality of work piece fixing screw on the left end face and the right-hand member face of rectangular frame's the work piece fixing frame, work piece fixing screw passes work piece fixing frame, the fixed angle rotary rod that is equipped with the level and places on the preceding terminal surface and the rear end face of work piece fixing frame, be equipped with the angle scale through the bearing is fixed on the angle rotary rod, and the vertical board fixed connection anchor clamps base through vertical placing with the bearing that the angle scale is connected, be equipped with angle rotary rod fixing device on anchor clamps base sea, angle rotary rod fixing device can fix the rotation of angle rotary rod, work piece fixing frame passes through angle rotary rod fixing device promptly and realizes angle fixation.

Further, a pointer is arranged on the angle rotating rod.

Further, rotating electrical machines on the angle rotary rod fixing device pass through motor shaft fixed connection horizontal screw rod, and the both ends of horizontal screw rod pass through bearing fixed connection screw rod unable adjustment base, are equipped with left helix line and right helix line at the both ends of horizontal screw rod, and two arc fixation clamps that are located angle rotary rod both sides pass through the connecting plate and connect horizontal screw rod, and two connecting plates are connected with left helix line and right helix line respectively through the screw thread, and angle rotary rod fixing device passes through screw rod unable adjustment base fixed connection anchor clamps base.

Further, the inner side surface of the arc-shaped fixing clamp is provided with anti-slip protrusions.

Further, the angle scale is provided with scales.

Further, the fixture base is provided with a mounting through hole.

To sum up, the beneficial effects of this application: the device has the following advantages:

1. the workpiece fixing screws are arranged on the end faces of the two sides of the workpiece fixing frame of the device, so that workpieces with different shapes can be fixed for processing dovetail grooves;

2. be equipped with the angle scale on this application device, with the rotation angle of work piece fixed frame accurate for the processing angle between dovetail processing milling cutter and the work piece is accurate, and then improves the machining precision of dovetail.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings, in which:

FIG. 1 is a schematic view of the overall apparatus of the present utility model;

fig. 2 is a schematic structural view of the angular rotation rod fixing device of the present utility model.

Reference numerals in the drawings: a work fixing frame-1; a workpiece fixing screw-2; an angle rotating rod-3; an angle scale-4; a clamp base-5; a vertical plate-6; an angle rotating rod fixing device-7; a rotating electric machine-71; a horizontal screw-72; screw rod fixed base-73; arc-shaped fixation clamps-74; pointer-8; and a connecting plate-9.

Detailed Description

The present application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the utility model are shown in the drawings.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1, a fixture for improving the machining precision of a dovetail groove is characterized in that a plurality of workpiece fixing screws 2 are arranged on the left end face and the right end face of a workpiece fixing frame 1 of a cuboid frame body, the workpiece fixing screws 2 penetrate through the workpiece fixing frame 1 through threads, two angle rotating rods 3 are horizontally fixed on the front end face and the rear end face of the workpiece fixing frame 1, angle discs 4 are fixedly sleeved on the two angle rotating rods 3 through bearings, a fixture base 5 is arranged below the workpiece fixing frame 1, the workpiece fixing frame 1 is fixedly connected with the fixture base 5 through the angle rotating rods 3, the angle rotating rods 3 are connected with the fixture base 5 through vertical plates 6 which are vertically arranged, the vertical plates 6 are connected with the angle rotating rods 3 through bearings between the angle discs 4 and the angle rotating rods 3, pointers 8 are fixedly arranged on the angle rotating rods 3, and the pointers 8 are positioned on the end faces of the angle discs 4 in a non-distant manner;

as shown in fig. 1 and 2, an angle rotary rod fixing device 7 is fixedly arranged on the clamp base 5, two arc fixing clips 74 on the angle rotary rod fixing device 7 are respectively positioned at the left side and the right side of the angle rotary rod 3, the two arc fixing clips 74 are respectively sleeved on a horizontal screw rod 72 through connecting plates 9, the two connecting plates 9 are respectively in threaded connection with left spiral threads and right spiral threads on the horizontal screw rod 72, two ends of the horizontal screw rod 72 are connected with a screw rod fixing base 73 through bearings, and a motor shaft of a rotary motor 71 fixed on the clamp base 5 is fixedly connected with the horizontal screw rod 72.

Before use, the workpiece to be processed is fixed in the workpiece fixing frame 1 through the mounting through hole on the fixture base 5, and then the workpiece to be processed is fixed in the workpiece fixing frame 1 through the workpiece fixing screws 2, so when the special-shaped workpiece is fixed, the special-shaped workpiece can be fixed when the workpiece fixing screws 2 are arranged because the workpiece fixing screws 2 are fixed in points.

Then, the workpiece fixing frame 1 is manually rotated, after the pointer 8 points to the angle needing milling on the workpiece, the rotating motor 71 on the angle rotating rod fixing device 7 is started, the horizontal screw rod 72 is rotated, the two arc-shaped fixing clamps 74 move towards the angle rotating rod 3, the angle rotating rod 3 is clamped, the angle rotating rod 3 is prevented from rotating, and the angle rotating rod 3 is fixedly connected with the workpiece fixing frame 1, so that simultaneously, the angle of the workpiece fixing frame 1 is fixed, and then a dovetail groove with a specific angle can be processed on the workpiece by using the milling cutter.

Since the horizontal screw 72 is provided with the left and right spiral threads, when the horizontal screw 72 rotates in one direction, the two connection plates 9 connected to the left and right spiral threads by the threads move in different directions.

The threads are divided into a left-handed thread and a right-handed thread. The thread that is screwed in when rotated counterclockwise is called left-handed thread.

The horizontal screw 72 is a screw, and is a cylinder with spiral grooves cut on the outer surface or a cone with conical surface spiral grooves cut on the outer surface. The screws have different heads, such as large flat screws, socket head cap screws, etc. The screw rod in this scheme is the cylinder that the surface was cut to have the helicla flute.

The angle scale 4 mentioned in the scheme is a circular disc with scales on the end face.

The above description is only illustrative of the preferred embodiments of the present application and of the principles of the technology employed. Meanwhile, the scope of the utility model referred to in this application is not limited to the technical solutions of the specific combination of the above technical features, but also covers other technical solutions formed by any combination of the above technical features or their equivalents without departing from the inventive concept. Such as the above-described features and technical features having similar functions (but not limited to) disclosed in the present application are replaced with each other.

Claims

1. The utility model provides an improve anchor clamps of dovetail machining precision which characterized in that: comprising the steps of (a) a step of,

a workpiece fixing frame (1);

the workpiece fixing screws (2) are uniformly distributed on the left end face and the right end face of the workpiece fixing frame (1) through threads;

the two angle rotating rods (3) are respectively fixed on the front end face and the rear end face of the workpiece fixing frame (1);

the angle dial (4) is fixed on the angle rotating rod (3) through a bearing;

the clamp comprises a clamp base (5), wherein the angle rotating rod (3) is fixed on the clamp base (5) through a vertical plate (6), the vertical plate (6) is connected with the angle rotating rod (3) through a bearing, and an angle rotating rod fixing device (7) is arranged on the clamp base (5);

the workpiece fixing frame (1) realizes angle fixing through the angle rotating rod fixing device (7).

2. The fixture for improving machining precision of a dovetail groove according to claim 1, wherein: the angle rotating rod (3) is fixedly provided with a pointer (8).

3. The fixture for improving machining precision of a dovetail groove according to claim 1, wherein: the angle rotary rod fixing device (7) comprises a rotary motor (71), a horizontal screw rod (72), a screw rod fixing base (73) and an arc fixing clamp (74), wherein the two ends of the horizontal screw rod (72) are fixedly connected with the screw rod fixing base (73) through bearings, left spiral lines and right spiral lines are arranged on the horizontal screw rod (72), the left spiral lines and the right spiral lines are respectively located at the two end parts of the horizontal screw rod (72), the two arc fixing clamps (74) located at the two side ends of the angle rotary rod (3) are respectively sleeved with the two end parts of the horizontal screw rod (72) through connecting plates (9), the two connecting plates (9) are respectively connected with the left spiral lines and the right spiral lines, and motor shafts of the rotary motor (71) are fixedly connected with the horizontal screw rod (72).

4. A fixture for improving machining precision of a dovetail groove according to claim 3, wherein: and anti-slip protrusions are arranged on the arc-shaped fixing clips (74).

5. The fixture for improving machining precision of a dovetail groove according to claim 1, wherein: the angle scale (4) is provided with scales.

6. The fixture for improving machining precision of a dovetail groove according to claim 1, wherein: and the clamp base (5) is provided with a mounting through hole.