CN217530050U

CN217530050U - Tool for elbow boring

Info

Publication number: CN217530050U
Application number: CN202220944325.5U
Authority: CN
Inventors: 何清; 张付峰; 董长中; 刘松桥; 孙俊鹏
Original assignee: Zhengzhou Wanda Heavy Industry Co ltd
Current assignee: Zhengzhou Wanda Heavy Industry Co ltd
Priority date: 2022-04-22
Filing date: 2022-04-22
Publication date: 2022-10-04
Anticipated expiration: 2032-04-22

Abstract

The utility model provides a tool for elbow boring, which comprises a support frame and a clamping cylinder fixed with the support frame, wherein the upper end and the lower end of the support frame correspond to a first arc supporting surface and a second arc supporting surface which are respectively arranged at the two ends of an elbow, the second arc supporting surface and the clamping cylinder are coaxially arranged, the right side of the support frame is hinged to rotate so as to compress a rotating pressing piece of the elbow from the upper part of the elbow, a fastening mechanism for fixing the rotating pressing piece is arranged between the rotating end of the rotating pressing piece and the support frame, the fastening mechanism comprises a support column hinged at the left side of the support frame, and the rotating end of the rotating pressing piece is sleeved on the support column; the support column upper end sets up the screw thread, rotate compress tightly the piece with compress tightly through the bolt setting on the support column between the support column.

Description

Tool for elbow boring

Technical Field

The utility model belongs to the return bend field, concretely relates to frock is used to elbow bore hole.

Background

In the actual tooling process of the elbow, the inner boring holes and the inner grooves are needed to be machined at the two ends of the elbow. The elbow is placed on a machine tool to process a fixture which needs to fix the elbow. The existing clamps mostly comprise an upper clamp and a lower clamp, wherein inner cavities of the upper clamp and the lower clamp are respectively semicircular and form a circular cavity together so as to fix the elbow. However, the mould has higher processing cost, and the mould can only process elbows with the same radius and length. In the case of a change in the radius or length of the bend, the mold cannot be used, the exchangeability is poor, and the cost is increased partially. In addition, in the actual production process, under the condition that the pipe is not accurately corrected or does not need to be accurately corrected after the elbow is machined, the cross section of the bent area of the elbow is not a perfect circle but an ellipse, and the existing circular cavity is not suitable for many times.

Disclosure of Invention

The utility model provides a frock is used to elbow bore hole.

The purpose of the utility model is realized with the following mode: a tool for boring an elbow comprises a support frame and a clamping cylinder fixed with the support frame, wherein a first arc supporting surface and a second arc supporting surface are respectively arranged at the upper end and the lower end of the support frame corresponding to the two ends of the elbow, the second arc supporting surface and the clamping cylinder are coaxially arranged, the right side of the support frame is hinged to a rotary pressing piece which can rotate so as to press the elbow from the upper side of the elbow, a fastening mechanism for fixing the rotary pressing piece is arranged between the rotating end of the rotary pressing piece and the support frame, the fastening mechanism comprises a support column hinged to the left side of the support frame, and the rotating end of the rotary pressing piece is sleeved on the support column; the support column upper end sets up the screw thread, rotate compress tightly the piece with compress tightly through the bolt setting on the support column between the support column.

And an arc surface or an elliptical surface is arranged on the surface of the rotary pressing piece, which is in contact with the surface of the elbow.

And a clamping piece is arranged between the upper surface of the elbow and the rotating pressing piece, the lower surface of the clamping piece is pressed against the surface of the elbow, and the upper surface of the clamping piece is pressed against the rotating pressing piece.

The supporting frame comprises a bottom plate, and a front side plate, a rear side plate, a left side plate, a right side plate and a top plate are respectively arranged at the front, the rear, the left and the right upper parts of the bottom plate; the support column articulates on the left side board outer wall, it articulates to rotate to compress tightly the piece on the right side board outer wall of support frame, the centre gripping cylinder sets up on the outer wall of posterior lateral plate, set up on the roof first circular arc holding surface, set up on the preceding curb plate second circular arc holding surface.

The axes of the first arc supporting surface and the second arc supporting surface are vertical.

And a weight-reducing cylindrical hole is formed in the clamping cylinder.

Compared with the prior art, the utility model discloses only need set up first circular arc holding surface and second circular arc holding surface location elbow respectively at the both ends of support frame, processing is simple with low costs. The rotary pressing piece and the supporting column can rotate, and sufficient space for assembling and disassembling the elbow can be provided. The rotary pressing piece can rotate from the upper part to press the elbow, and the operation is simple and convenient.

Drawings

Fig. 1 is a front view. Fig. 2 is a left side view. Fig. 3 is a right side view. Fig. 4 is a plan view. Fig. 5 is a schematic cross-sectional view.

Wherein, 1 is the centre gripping cylinder, 2 is the rotation compressing tightly piece, 3 is the support column, 4 is the bolt, 5 is first circular arc holding surface, 6 is the second circular arc holding surface, 7 is the left side board, 8 is the right side board.

Detailed Description

In the present invention, unless otherwise explicitly specified and limited, technical terms used in the present application shall have the ordinary meaning as understood by those skilled in the art to which the present invention pertains. The terms "connected", "fixed", "arranged" and the like are to be understood in a broad sense, and may be fixedly connected, detachably connected or integrated; can be directly connected or indirectly connected through an intermediate medium; either mechanically or electrically. Unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features, or indirectly contacting the first and second features through intervening media. Furthermore, a first feature may be "on" or "over" or "above" a second feature, and the like, may be directly on or obliquely above the second feature, or may simply mean that the first feature is at a higher level than the second feature. A first feature "under" or "beneath" a second feature may be directly under or obliquely under the first feature or may simply mean that the first feature is at a lesser level than the second feature. Relational terms such as first, second, and the like may be 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. Terms used in the description such as "center", "lateral", "longitudinal", "length", "width", "thickness", "height", "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated.

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings and specific embodiments. As shown in fig. 1-5, a tool for boring an elbow comprises a support frame and a clamping cylinder 1 fixed with the support frame, wherein the upper end and the lower end of the support frame are respectively provided with a first arc supporting surface 5 and a second arc supporting surface 6 corresponding to the two ends of the elbow, the second arc supporting surface 6 and the clamping cylinder 1 are coaxially arranged, the right side of the support frame is hinged with a rotary pressing member 2 which can rotate so as to press the elbow from the upper part of the elbow, a fastening mechanism for fixing the rotary pressing member is arranged between the rotating end of the rotary pressing member 2 and the support frame, the fastening mechanism comprises a support pillar 3 hinged to the left side of the support frame, and the rotating end of the rotary pressing member 2 is sleeved on the support pillar 3; the upper end of the supporting column 3 is provided with a thread 4, and the rotary pressing piece 2 and the supporting column are pressed tightly through a bolt 4 arranged on the supporting column. The bolt 4 is arranged on the supporting column 3 and above the rotary pressing piece 2. And a plurality of gaskets are arranged between the rotating pressing piece 2 and the bolt 4 according to requirements. The utility model discloses chuck centre gripping on the well lathe centre gripping cylinder 1 rotates, and the boring cutter is deepened in the elbow end and rectilinear movement bore hole. The clamping cylinder 1 and the second arc supporting surface 6 are coaxially arranged to ensure that the position of the circle center of one end of the elbow is unchanged when the chuck rotates. The utility model discloses need not set up holistic circular cavity, only need set up respectively at the both ends of support frame first circular arc holding surface 5 with 6 location elbows of second circular arc holding surface, processing is simple with low costs. The rotary pressing piece 2 and the supporting column 3 can rotate, and enough space for assembling and disassembling the elbow can be provided. The rotary pressing piece can rotate from the upper part to press the elbow, and the operation is simple and convenient.

And an arc surface or an elliptical surface is arranged on the contact surface of the rotary pressing piece 2 and the surface of the elbow. Since the outer surface of the elbow is not necessarily perfectly circular, it may be provided that the elliptical surface increases the contact area.

In addition, a clamping piece is arranged between the upper surface of the elbow and the rotating pressing piece 2, the lower surface of the clamping piece is pressed against the surface of the elbow, and the upper surface of the clamping piece is pressed against the rotating pressing piece 2. When the diameter of the elbow changes, the rotating pressing piece and the elbow cannot be pressed, and the pressing piece is arranged to press the elbow at the moment. In addition, the contact area between the clamping piece and the elbow is large, so that the pressure intensity can be reduced, and the damage to the outer wall of the elbow can be avoided. The appendage does not show the clamping member.

The supporting frame comprises a bottom plate, and a front side plate, a rear side plate, a left side plate, a right side plate and a top plate are respectively arranged at the front, the rear, the left and the right upper parts of the bottom plate; the support column 3 articulates on 7 outer walls of left side board, it articulates to rotate to compress tightly piece 2 on 8 outer walls of right side board of support frame, centre gripping cylinder 1 sets up on the outer wall of posterior lateral plate, set up on the roof first circular arc holding surface 5, set up on the preceding curb plate second circular arc holding surface 6. The height of the positions of the left side plate 7 and the right side plate 8 corresponding to the rotary pressing piece 2 is smaller than that of the elbow. In general, the upper positions of the front sections of the left side plate 7 and the right side plate 8 are arc-shaped, so that the rotary pressing piece can move conveniently.

The axes of the first circular arc supporting surface 5 and the second circular arc supporting surface 6 are vertical, and the elbow with the angle of 90 degrees can be used. If the bending angles of the elbows are different, the axial angles of the first circular arc supporting surface 5 and the second circular arc supporting surface 6 can be adaptively changed. And a weight-reducing cylindrical hole is formed in the clamping cylinder 1, so that the weight of the whole tool is reduced.

In the specific implementation: will the utility model discloses the frock is placed on the lathe, and the location back, the chuck of lathe presss from both sides tightly the centre gripping cylinder. Place the elbow the utility model discloses in the frock, rotate the rotation compresses tightly 2 sets of arriving on the support column 3 to compress tightly with the bolt rotate and compress tightly 2. And a chuck on the machine tool clamps the clamping cylinder 1 to rotate, and the boring cutter goes deep into the end head of the elbow and linearly moves to bore the hole.

The features of the embodiments described above may be arbitrarily combined, and the combination of the features is not contradictory, and should be considered as a range described in the present specification. Without departing from the overall concept of the present invention, the technical solution of the present invention and equivalent replacements or changes, and a plurality of changes and improvements made, should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an elbow is frock for bore hole which characterized in that: the elbow clamping device comprises a support frame and a clamping cylinder fixed with the support frame, wherein the upper end and the lower end of the support frame correspond to a first arc supporting surface and a second arc supporting surface which are respectively arranged at two ends of an elbow, the second arc supporting surface and the clamping cylinder are coaxially arranged, the right side of the support frame is hinged with a rotary pressing piece which can rotate so as to press the elbow from the upper part of the elbow, a fastening mechanism for fixing the rotary pressing piece is arranged between the rotating end of the rotary pressing piece and the support frame, the fastening mechanism comprises a support column hinged to the left side of the support frame, and the rotating end of the rotary pressing piece is sleeved on the support column; the support column upper end sets up the screw thread, rotate compress tightly the piece with compress tightly through the bolt setting on the support column between the support column.

2. The frock for elbow boring of claim 1, characterized in that: and an arc surface or an elliptical surface is arranged on the surface of the rotary pressing piece, which is in contact with the surface of the elbow.

3. The frock for elbow boring of claim 1, characterized in that: and a clamping piece is arranged between the upper surface of the elbow and the rotating pressing piece, the lower surface of the clamping piece is pressed against the surface of the elbow, and the upper surface of the clamping piece is pressed against the rotating pressing piece.

4. The frock for elbow boring of claim 1, characterized in that: the supporting frame comprises a bottom plate, and a front side plate, a rear side plate, a left side plate, a right side plate and a top plate are respectively arranged at the front, the rear, the left and the right of the bottom plate; the support column articulates on the left side board outer wall, it articulates to rotate to compress tightly the piece on the right side board outer wall of support frame, the centre gripping cylinder sets up on the outer wall of posterior lateral plate, set up on the roof first circular arc holding surface, set up on the preceding curb plate second circular arc holding surface.

5. The frock for elbow boring of claim 1, characterized in that: the axes of the first arc supporting surface and the second arc supporting surface are vertical.

6. The frock for elbow boring of claim 1, characterized in that: and a weight-reducing cylindrical hole is formed in the clamping cylinder.