Fast positioning and clamping clamp for machining angle hole

Abstract

The utility model belongs to the field of machine manufacturing, and relates to a clamp for machining angle holes and capable of achieving rapid positioning and clamping. According to the technical scheme, the clamp comprises two clamping faces, an angle ejector block, a supporting ejector block, an opening pressing plate and a plurality of bolts and nuts. The two clamping surfaces are obliquely arranged and are symmetrical, and a plurality of through holes are formed in the clamping surfaces; the angle ejector block is a long strip with a rectangular section and is provided with at least two groups of through holes, the through holes are matched and fixed with the through holes in the clamping surface through bolts and nuts, and one side surface of the angle ejector block is inclined to serve as an angle positioning surface; the supporting top block is a T-shaped block, the transverse part of the T-shaped block is attached to the clamping face, a bolt hole is formed in the middle of the T-shaped block, the center of the bolt hole is parallel to the clamping face, a screw is arranged in the bolt hole, and the end of the screw abuts against a workpiece to be clamped. The opening pressing plate is a metal strip plate, a through hole is formed in the middle of the opening pressing plate, the opening pressing plate is arranged at the middle hollow position of a to-be-machined part, the two sides of the opening pressing plate press the to-be-machined part, and the through hole is fixed to the clamping face through bolts and nuts.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of mechanical manufacturing relates to a kind of clamps for angle hole processing of quick positioning clamping. BACKGROUND

[0002] In the mechanical field, often encounter multi-angle lubrication oil hole of body, base and the like, more complex when processing. For complex structure workpiece, mostly adopt hand electric drill to drill. When processing, angle deviation is large, and time-consuming and labor-consuming.

[0003] Even when processing on machine tool, due to involving two or more directions of inclined workpiece processing, clamping alignment brings a lot of time loss, leading to low processing efficiency, batch inconsistency and other problems. INVENTION CONTENTS

[0004] To the above problems, the utility model provides a kind of clamps for angle hole processing of quick positioning clamping, can be quickly clamped and positioned, avoid the problem of complicated processing clamping.

[0005] The technical scheme adopted by the utility model is:

[0006] The utility model clamps for angle hole processing of quick positioning clamping, including two clamping surfaces, angle top block, support top block, opening press plate and several bolts and nuts;

[0007] The two clamping surfaces are inclined and symmetrical, and a plurality of through holes are arranged on the clamping surface;

[0008] The angle top block is a long strip with a rectangular cross section, and at least two groups of through holes are provided, the through holes are fixed by cooperating with the through holes on the clamping surface through bolts and nuts, and one side surface of the angle top block is inclined as an angle positioning surface;

[0009] The support top block is a T-shaped block, the horizontal part of the T-shaped block is attached to the clamping surface, the middle part is provided with a bolt hole, the center of the bolt hole is parallel to the clamping surface, the through holes on both sides of the bolt hole are matched with the through holes on the clamping surface and are fixed by using bolts and nuts, a screw rod is arranged in the bolt hole, and the end of the screw rod abuts against the workpiece to be clamped;

[0010] The opening press plate is a metal strip plate, and a through hole is formed in the middle, the opening press plate is arranged at the hollow position of the part to be processed, the two sides press the part to be processed, and the middle through hole is fixed on the clamping surface by bolts and nuts.

[0011] According to the clamp for angle hole processing of quick positioning clamping, a supporting block is further arranged, two groups of mounting holes are arranged on the supporting block, the mounting holes are matched with the through holes on the clamping surface and are fixed by using bolts and nuts, and a lifting surface is arranged on the supporting block and is perpendicular to the clamping surface.

[0012] According to the machining angle hole fixture of the quick positioning and clamping, the angle positioning surface of the angle block supports one side of the part to be machined, the front end of the screw of the supporting block abuts against the other side of the part to be machined, and the two side faces of the part to be machined are at an angle smaller than a right angle.

[0013] According to the machining angle hole fixture of the quick positioning and clamping, the lower parts of the two clamping surfaces are provided with bases connected with each other, and the upper parts are connected with each other through the connecting pieces.

[0014] According to the machining angle hole fixture of the quick positioning and clamping, the clamping surface is further provided with a hollow space for placing the protruding structure of the part to be machined.

[0015] Compared with the prior art machining, the machining angle hole fixture of the quick positioning and clamping has the following advantages:

[0016] When the workpiece is placed on the fixture, the gravity causes the workpiece to naturally abut against one side of the angle inclined block and the supporting block, and the degree of freedom is limited, and the existing process alignment problem is solved through fine adjustment.

[0017] The fixture adopts two-side angle positioning, can simultaneously machine angle holes on the front and back sides, and the consistency and accuracy of batch machining are ensured.

[0018] The open press plate mode is adopted for clamping, and the workpiece can be quickly clamped and unclamped.

[0019] Compared with the traditional clamping mode, the machining adjustment and alignment time is saved, and the fixture can clamp four workpieces on the front and back sides, two workpieces can be machined at a time, the machining time is shortened, and the efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a front view of the fixture

[0021] Figure 2 is Figure 1 a left view of the assembly

[0022] Figure 3 is Figure 2 a P view

[0023] Reference signs: 1 clamping surface, 2 angle block, 3 supporting block, 4 supporting block, 5 open press plate, 6 screw, 7 base, 8 connecting piece, 9 workpiece to be machined, 10 reinforcing rib. DETAILED DESCRIPTION

[0024] The content of the utility model will be further described below:

[0025] The utility model discloses a processing angle hole clamp of quick positioning and clamping, which comprises two clamping surfaces 1, an angle block 2, a supporting block 4, an opening pressing plate 5 and a plurality of bolts and nuts.

[0026] The two clamping surfaces 1 of the device are symmetrically arranged in an inclined manner, and a plurality of through holes are arranged on the clamping surfaces 1 to ensure the placement of four pieces with high strength requirements. The lower parts of the two clamping surfaces 1 are connected with a base 7, and the upper parts are connected with each other through a connecting piece 8, and the two clamping surfaces 1 are at a certain angle. The device is a hollow cavity structure welded from a carbon steel plate, and has a reinforcing rib inside.

[0027] The angle block 2 is a long strip with a rectangular cross section, and at least two groups of through holes are arranged on the angle block 2.

[0028] The supporting block 4 is a T-shaped block, the horizontal part of the T-shaped block is attached to the clamping surface 1, the middle part has a bolt hole, the center of the bolt hole is parallel to the clamping surface 1, the two sides of the bolt hole have through holes matched with the through holes on the clamping surface 1 and are fixed by bolts and nuts, a screw rod is arranged in the bolt hole, and the end of the screw rod abuts against the workpiece to be clamped. The T-shaped block is convenient for the installation of an internal hexagonal screw and rapid processing, and has high stability.

[0029] The opening pressing plate 5 is a metal strip plate, and a through hole is arranged in the middle of the opening pressing plate 5.

[0030] The body of the clamp is an angle block, the side surface of which is the main positioning surface, and the positioning is achieved by a taper pin hole to ensure the accuracy of one angle and prevent the angle block from being displaced during clamping and processing. When the workpiece is placed, the bottom surface of the workpiece abuts against the angle block surface, and the supporting block is a structure for limiting the freedom in another direction. The opening pressing plate is pressed against the inclined surface of the angle surface of the body to limit the position, thereby ensuring the accuracy and safety of processing. After a slant hole is processed on one surface, the opening pressing plate is quickly removed, and a lifting hook is used to lift the workpiece to the other surface for processing in the same way, so that the angle holes on the two surfaces can be accurately and quickly processed.

[0031] The device further comprises a supporting block 3, two groups of mounting holes are arranged on the supporting block 3, the mounting holes are matched with the through holes on the clamping surface 1 and are fixed by bolts and nuts, and a lifting surface is arranged on the supporting block 3 and is perpendicular to the clamping surface 1.

[0032] The angle positioning surface of the angle top block 2 supports one side of the component to be processed, the screw front end of the support top block 4 abuts against the other side of the component to be processed, and the two side surfaces of the component to be processed form an angle smaller than a right angle. The clamping surface 1 is further provided with a hollow structure for placing the protruding structure of the component to be processed.

[0033] The device can be provided with four work stations, which are arranged in a clockwise direction and have the same size, thereby improving the number of clamping in a single time.

[0034] The side surface of the angle top block of the device is mainly positioned by a taper pin hole, thereby ensuring the accuracy of one angle and preventing the displacement of the angle block during clamping and processing. When clamping and placing, the bottom surface of the workpiece abuts against the angle top block, and the support block is a structure for limiting the freedom in another direction. Through the slope of the angle top block of the machine body and the support block, the two angular positions of the placed workpiece are determined, and the support of the support block screw is further adjusted to prevent displacement under stress. The pressure of the opening press plate is to make the workpiece abut against the slope of the angle surface of the machine body, and through the limitation of these positions, the accuracy and safety of processing are ensured. After processing one inclined hole, the opening press plate is quickly removed, and the workpiece is hung by a hook to the other side, and the same processing method is used, so that the two angular holes can be accurately and quickly processed.

Claims

1. A fixture for quickly positioning and clamping a machining angle hole, characterized in that, It comprises two clamping surfaces (1), angle top block (2), support top block (4), open pressing plate (5) and several bolts and nuts. The two clamping surfaces (1) are arranged symmetrically and obliquely, and a plurality of through holes are arranged on the clamping surface (1). The angle top block (2) is a long strip with rectangular section, and at least two groups of through holes are arranged, the through holes are fixed by cooperating with the through holes on the clamping surface (1) through bolts and nuts, and one side surface of the angle top block (2) is inclined as an angle positioning surface. The support top block (4) is a T-shaped block, the horizontal part of the T-shaped block is attached to the clamping surface (1), the middle part is provided with a bolt hole, the center of the bolt hole is parallel to the clamping surface (1), the two sides of the bolt hole are provided with through holes matched with the through holes on the clamping surface (1) and fixed by using bolts and nuts, a screw rod is arranged in the bolt hole, and the end of the screw rod abuts against the workpiece to be clamped. The open pressing plate (5) is a metal strip plate, and a through hole is arranged in the middle of the open pressing plate (5), the open pressing plate (5) is arranged at the hollow position of the part to be machined, the two sides of the open pressing plate (5) press the part to be machined, and the through hole in the middle is fixed on the clamping surface (1) by using bolts and nuts.

2. The fixture for machining an angle hole according to claim 1, wherein It also comprises a supporting block (3), two groups of mounting holes are arranged on the supporting block (3), the mounting holes are matched with the through holes on the clamping surface (1) and fixed by using bolts and nuts, and a lifting surface is arranged on the supporting block (3) and perpendicular to the clamping surface (1).

3. The fixture for machining an angle hole according to claim 1, wherein The angle positioning surface of the angle top block (2) supports and contacts one side of the part to be machined, the screw rod of the support top block (4) abuts against the other side of the part to be machined, and the two side surfaces of the part to be machined form an angle smaller than a right angle.

4. The fixture for machining an angle hole according to claim 1, wherein The lower parts of the two clamping surfaces (1) are connected by a base (7), and the upper parts are connected by a connecting piece (8), and the two clamping surfaces (1) form a certain angle.

5. The fixture for machining an angle hole according to claim 1, wherein The clamping surface (1) is also provided with a hollow part for placing the protruding structure of the part to be machined.

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