CN219074900U

CN219074900U - Frock clamp for tubular work piece

Info

Publication number: CN219074900U
Application number: CN202223091919.5U
Authority: CN
Inventors: 杜成林; 矫传涛; 林富生
Original assignee: Dalian Longxin Machinery Co ltd
Current assignee: Dalian Longxin Machinery Co ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-05-26
Anticipated expiration: 2032-11-22

Abstract

The utility model discloses a fixture for tubular workpieces, which comprises a disc fixture, wherein the disc fixture is provided with an outer ring and an inner ring, a central hole is formed in the center of the inner ring, positioning holes are formed in the two ends of the outer ring, a key slot is formed in the upper end of the disc fixture, a circle of annular key slot is formed between the central hole and the positioning holes, and a fixed block is arranged in the central hole.

Description

Frock clamp for tubular work piece

Technical Field

The utility model relates to the technical field of tool clamps, in particular to a tool clamp for a tubular workpiece.

Background

The fixture is a technological device for fast fastening workpiece during machining to maintain proper relative position of machine tool, cutter and workpiece. That is to say, the fixture is an indispensable part for machining, and the fixture technology is developing towards high precision, high efficiency, module, combination, versatility and economy under the drive of the development of the machine tool technology towards high speed, high efficiency, precision, compound, intelligent and environment-friendly directions.

The utility model patent with the publication number of CN216265496U discloses a fixture for tubular fittings, which comprises a table top and an air cylinder, wherein a working groove is formed in the table top, a static clamping block is arranged on the inner wall of the working groove, the surface of the static clamping block is in an inner arc shape, the output end of the air cylinder is connected with a push rod, the air cylinder is fixedly connected with a support, the air cylinder is fixedly connected with the table top through the support, the push rod passes through the table top from the outside of the table top to reach the inside of the working groove, the push rod is in sliding connection with the table top, a movable clamping block is arranged at one end of the push rod, which is positioned in the working groove, of the surface of the movable clamping block is in an inner arc shape, and the static clamping block is positioned on the path of the push rod extending line in the working groove.

The utility model has the following defects: when the device is used, a tubular fitting to be clamped passes through the working groove and is positioned between the movable clamping block and the static clamping block, the cylinder stretches to drive the ejector rod and the movable clamping block to move towards the static clamping block until the movable clamping block and the static clamping block clamp the tubular fitting, but the outer wall of the tubular fitting is smooth, and the device applies force to the tubular fitting in three directions on the outer wall of the tubular fitting to fix the tubular fitting when clamping, so that the tubular fitting is easily rotated in the clamping mechanism, the machining precision is influenced, meanwhile, the device has more structure, and the subsequent maintenance is relatively complex.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a fixture clamp for a tubular workpiece, which solves the problems of low processing precision and relatively complex maintenance in the prior art.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a tubular work piece frock clamp, includes disc clamp, disc clamp is equipped with outer lane and inner circle, the center department of inner circle is opened there is the centre bore, the locating hole has all been opened at the outer lane both ends, disc clamp upper end is opened there is the keyway, disc clamp be in the centre bore with be equipped with round annular keyway between the locating hole, the inside fixed block that is equipped with of centre bore.

Preferably, the axes of the pair of positioning holes and the axis of the central hole are on the same horizontal line.

Preferably, the center line of the key groove is perpendicular to a horizontal line formed by the axle center of the central hole and the axle centers of the pair of positioning holes.

Preferably, a certain gradient is arranged at the top end of the central hole, and the fixed block is matched with the top of the central hole in a direction.

Preferably, the bottom end of the fixed block is connected to the telescopic end of the existing cylinder.

Advantageous effects

The utility model provides a fixture for tubular workpieces, which has the following beneficial effects: the device has only one disc clamping structure, fewer parts and relatively simple subsequent maintenance devices, and meanwhile, the device moves downwards when being clamped, so that the inner ring is expanded and deformed, the pipe is fixed in the annular key groove by acting force generated by expansion of the inner ring, the pipe is stressed in four weeks and is not easy to displace and rotate, and the device has strict requirements on positioning precision and can effectively control the precision of the parts.

Drawings

Fig. 1 is a sectional view of a tool clamp for a tubular workpiece according to the present utility model.

Fig. 2 is a schematic view of a tool fixture for a tubular workpiece according to the present utility model.

In the figure: 1. an outer ring; 2. positioning holes; 3. a key slot; 4. a fixed block; 5. an annular keyway; 6. an inner ring; 7. a central bore; 8. a disc clamp.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-2, the present utility model provides a technical scheme of a fixture for a tubular workpiece: including disc anchor clamps 8, disc anchor clamps 8 are equipped with outer lane 1 and inner circle 6, the center department of inner circle 6 opens there is centre bore 7, locating hole 2 has all been opened at outer lane 1 both ends, disc anchor clamps 8 upper end has been opened keyway 3, disc anchor clamps 8 are in centre bore 7 with be equipped with round annular keyway 5 between the locating hole 2, the inside fixed block 4 that is equipped with of centre bore 7.

Further, the axes of the pair of positioning holes 2 and the axis of the central hole 7 are on the same horizontal line.

Further, the center line of the key slot 3 is perpendicular to a horizontal line formed by the axis of the central hole 7 and the axes of the pair of positioning holes 2.

Further, a certain gradient is arranged at the top end of the central hole 7, and the fixed block 4 is matched with the top of the central hole 7 in a direction.

Further, the bottom end of the fixed block 4 is connected to the telescopic end of the existing cylinder.

Examples: when the device is used, a pair of positioning holes 2 are aligned with the fixing holes, a disc clamp 8 is fixed by bolts, a key groove 3 is arranged above, the bottom end of a fixing block 4 is connected to the telescopic end of an existing cylinder, an object is inserted into an annular key groove 5, the fixing block 4 is pulled downwards, the inner ring 6 is expanded and deformed due to movement of the fixing block 4, and the object is clamped through the expanded inner ring 6 and the outer ring 1 so as to facilitate the next processing.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

Claims

1. The utility model provides a frock clamp for tubular workpiece, includes disc clamp (8), its characterized in that, disc clamp (8) are equipped with outer lane (1) and inner circle (6), open in inner circle (6) center department has centre bore (7), locating hole (2) have all been opened at outer lane (1) both ends, open on disc clamp (8) has keyway (3), disc clamp (8) are in centre bore (7) with be equipped with round annular keyway (5) between locating hole (2), inside fixed block (4) that are equipped with of centre bore (7).

2. A tool clamp for tubular workpieces according to claim 1, wherein the axes of a pair of the positioning holes (2) and the axis of the center hole (7) are on the same horizontal line.

3. A tool clamp for tubular workpieces according to claim 1, wherein the center line of the key groove (3) is perpendicular to a horizontal line formed by the axis of the center hole (7) and the axes of the pair of positioning holes (2).

4. The fixture for the tubular workpiece according to claim 1, wherein a certain gradient is arranged at the top end of the central hole (7), and the fixed block (4) is matched with the top of the central hole (7) in the axial direction.

5. The fixture for tubular workpieces according to claim 1, wherein the bottom end of the fixed block (4) is connected to the telescopic end of the existing cylinder.