CN214025690U

CN214025690U - Workpiece arc line scribing tool

Info

Publication number: CN214025690U
Application number: CN202022797184.2U
Authority: CN
Inventors: 孟繁君; 李艳来; 陈曈
Original assignee: Tianjin Zhiyuan Machinery Manufacturing Co ltd
Current assignee: Tianjin Zhiyuan Machinery Manufacturing Co ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-08-24
Anticipated expiration: 2030-11-27

Abstract

The utility model provides a workpiece arc line scribing tool, which comprises a first scribing component, a second scribing component and a telescopic rod group, wherein the first scribing component and the second scribing component are connected through the telescopic rod group, the lower end of the first scribing component is connected with a base, and the base is of a round platform structure; the first scribing assembly and the second scribing assembly have the same structure; the first marking assembly comprises a main body, the main body comprises an upper part and a lower part which are of an integral structure, the upper part is of a cylindrical structure, and a first through hole is formed in the center of the upper part of the main body; a first mounting hole is formed in the center of the upper surface of the upper part of the main body and used for mounting the pressing rod; the lower part of the main body is of a table body structure, and a second mounting hole is formed in the center of the lower part of the main body and used for mounting a screw rod. The utility model discloses can realize the annular work piece relatively easily and draw fixed to the centre of a circle when pitch arc, and adjustable length has guaranteed the accuracy of drawing a line, has prevented effectively that the emergence of drawing a line in-process from skidding.

Description

Workpiece arc line scribing tool

Technical Field

The utility model belongs to the technical field of mechanical engineering, especially, relate to a pitch arc frock is drawn to work piece.

Background

Scribing is an important process in machining and is widely used for single-piece or small-batch production. For small volume production, the scribing tooling is relatively quick to replace, and when one tooling is used up, the tooling may be useless. However, it is also difficult for a technician to trace an arc on a circular workpiece, and the datum cannot be easily fixed during tracing, which is both inaccurate and time consuming. According to the production demand, the scribing tool capable of conveniently scribing the arc appears.

Most of the existing scribing tools still have several defects, such as unsatisfactory scribing effect when a reference (circle center) is fixed, unstable process and easy slippage; the marking tool with the position positioning function is complex in structure, difficult to manufacture and low in production benefit.

Disclosure of Invention

In view of this, the present invention provides a workpiece arc line drawing tool to solve the above problems.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a workpiece arc line scribing tool comprises a first scribing component, a second scribing component and a telescopic rod group, wherein the first scribing component and the second scribing component are connected through the telescopic rod group, the lower end of the first scribing component is connected with a base, and the base is of a round table structure; the first scribing assembly and the second scribing assembly have the same structure; the first marking assembly comprises a main body, the main body comprises an upper part and a lower part which are of an integral structure, the upper part is of a cylindrical structure, and a first through hole is formed in the center of the upper part of the main body; a first mounting hole is formed in the center of the upper surface of the upper part of the main body and is communicated with the first through hole; an internal thread is arranged in the first mounting hole and is in threaded connection with a pressure rod, and the other end of the pressure rod is fixedly connected with a pressure foot; the lower part of the main body is of a table body structure, a second mounting hole is formed in the center of the lower part of the main body and used for mounting a screw rod, and the screw rod is of a cylindrical structure with a conical head at the bottom end; and a pointer and a magnifier are fixedly arranged on one side of the lower part of the main body, and the magnifier is positioned right above the pointer.

Furthermore, the telescopic rod group comprises a connecting rod, a sleeve and a positioning device, wherein the sleeve is of a cuboid structure with a circular through hole in the center; the inner diameter of the circular through hole is larger than the diameter of the connecting rod; one end of the connecting rod penetrates through the first through hole, a concave groove is formed in the end face of the other end of the connecting rod, and a sliding block is installed in the concave groove; the other end of the connecting rod is sleeved with the sleeve, the upper surface and the lower surface of the sleeve are respectively provided with a strip-shaped through hole, and the positioning device penetrates through the strip-shaped through hole to be fixedly connected with the sliding block.

Furthermore, the positioning device comprises a button head, a button rod, a bracket, a first positioning plate and a second positioning plate; the lower end of the button head is fixedly connected with a button rod, and the diameter of the button rod is equal to the width of the strip-shaped through hole; the middle part of the button rod is fixedly connected with a sliding block, the lower end of the button rod is fixedly connected with a bracket, the bracket is in an -shaped structure, and the width of the bracket is equal to that of the strip-shaped through hole; a locating plate and No. two locating plates are connected respectively to support both ends, No. one locating plate and No. two locating plates are L type structure.

Further, a spring is arranged below the button head.

Furthermore, the inner surfaces of the first positioning plate and the second positioning plate are respectively provided with an elastic pad.

Furthermore, scales are marked on the upper surface of the base.

Further, the outer surface of the presser foot is provided with a net-shaped embossing.

Compared with the prior art, a work piece draws arc line frock have following advantage:

(1) the utility model discloses can realize the annular work piece relatively easily and draw fixed to the centre of a circle when pitch arc, and adjustable length has guaranteed the accuracy of drawing a line, has prevented effectively that the emergence of drawing a line in-process from skidding.

(2) The utility model discloses simple structure easily makes, and the equipment is convenient, and the flexible operation, but cyclic utilization has increased the rate of utilization, has reduced manufacturing cost, accords with the requirement of modernized green production.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic view of the overall structure according to the embodiment of the present invention;

fig. 2 is a schematic structural view of a first scribing assembly according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of a first scribing assembly according to an embodiment of the present invention;

fig. 4 is a schematic view of a main body cross-sectional structure according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a telescopic rod set according to an embodiment of the present invention;

fig. 6 is a schematic view of a horizontal cross-section structure of a telescopic rod assembly according to an embodiment of the present invention;

fig. 7 is a schematic view of a cross-sectional structure of the telescopic rod assembly in the vertical direction according to the embodiment of the present invention;

fig. 8 is a schematic structural diagram of a positioning device according to an embodiment of the present invention.

Description of reference numerals:

1-first marking assembly; 11-a body; 12-a screw rod; 13-presser foot; 14-a pressure bar; 15-one through hole; 16-a pointer; 17-a magnifying glass; 2-second marking assembly; 3-a telescopic rod group; 31-a connecting rod; 311-a slider; 32-a cannula; 321-strip-shaped through holes; 33-a positioning device; 331-button head; 332-a button lever; 333-spring; 334-a scaffold; 335-positioning plate I; 336-second positioning plate; 4-base.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1 to 4, the workpiece arc line scribing tool comprises a first scribing component 1, a second scribing component 2 and a telescopic rod group 3, wherein the first scribing component 1 and the second scribing component 2 are identical in structure, and the first scribing component 1, the second scribing component 2 and the telescopic rod group 3 are all made of Q235A, so that the manufacturing cost is low and the workpiece arc line scribing tool is not easy to damage; the first marking assembly 1 and the second marking assembly 2 are connected through a telescopic rod group 3, the lower end of the first marking assembly 1 is connected with a base 4, the base 4 is of a circular truncated cone structure, and scales are marked on the upper surface of the base 4; the first marking assembly 1 is matched with the base 4, so that the circle center is fixed when an arc line is marked, the phenomenon of slipping can be effectively prevented when the arc line is marked, and the first marking assembly can be detached at any time.

The first marking assembly 1 comprises a main body 11, the main body 11 comprises an upper part and a lower part which are of an integral structure, the upper part is of a cylindrical structure, and a first through hole is formed in the center of the upper part of the main body 11; a first mounting hole is formed in the center of the upper surface of the upper portion of the main body 11 and is communicated with the first through hole 15; an internal thread is arranged in the first mounting hole and is in threaded connection with the pressure rod 14; the upper end of the pressure lever 14 is fixedly connected with a presser foot 13, and the outer surface of the presser foot 13 is provided with reticular embossing to increase friction force and facilitate workers to tighten the presser foot 13; the lower part of the main body 1 is of a table structure, a second mounting hole is formed in the center of the lower part and used for mounting a screw rod 12, the screw rod 12 is of a cylindrical structure with a conical head at the bottom, and the main body 11 and the screw rod 12 are in threaded connection, so that the scribed screw rod 12 corresponding to the size of a workpiece can be conveniently replaced; one side fixed connection pointer 16 and magnifying glass 17 of main part 11 lower part, and magnifying glass 17 is located pointer 16 directly over, when needing to draw the pitch arc of appointed angle, inserts main part 1 in base 4 to adjust the coincidence of 0 scale mark of pointer 16 and base 4 upper surface, the staff can be relaxed through magnifying glass 17 sees the pointer 16 position, and the angle of the pitch arc of drawing is adjusted to the accuracy.

As shown in fig. 5 to 8, the telescopic rod group 3 includes a connecting rod 31, a sleeve 32 and a positioning device 33, the sleeve 32 is a rectangular parallelepiped structure with a circular through hole at the center, and the inner diameter of the circular through hole is larger than the diameter of the connecting rod 31; the upper surface and the lower surface of the sleeve 32 are respectively provided with a strip-shaped through hole 321; one end of the connecting rod 31 penetrates through the first through hole 15, and a worker drives the pressure lever 12 to downwards abut against the connecting rod 31 through the tightening presser foot 13, so that the connecting rod 31 is fixed; the other end of the connecting rod 31 is sleeved with the sleeve 32, the upper surface and the lower surface of the two ends of the sleeve 32 are respectively provided with the pressing bolt 321, and when the length of the connecting rod 31 in the sleeve 32 is adjusted by a worker according to actual needs, the fixing is carried out by screwing the pressing bolt 321, so that the scribing operation can be started.

A concave groove is formed in the end face of the other end of the connecting rod 31, a sliding block 311 is installed in the concave groove, and the positioning device 33 comprises a button head 331, a button rod 332, a support 334, a first positioning plate 335 and a second positioning plate 336; the lower end of the button head 331 is fixedly connected with a button rod 332, and the diameter of the button rod 332 is equal to the width of the strip-shaped through hole 321, so that the button rod 332 can move in the vertical direction; a spring 333 is arranged below the button head 331, the lower end of the spring 333 is abutted against the upper surface of the sleeve 32, so that the button rod 332 is prevented from moving in the scribing process, the scribing is not accurate, and the button rod 332 is helped to reset; the middle part of the button rod 332 is fixedly connected with a sliding block 311, the lower end of the button rod 332 is fixedly connected with a bracket 334, the bracket 334 is in an -shaped structure, and two ends of the bracket 334 are respectively connected with a first positioning plate 335 and a second positioning plate 336; the width of the bracket 334 is equal to that of the strip-shaped through hole 321, so that the first positioning plate 335 and the second positioning plate are prevented from shifting 336 in the scribing process; the first positioning plate 335 and the second positioning plate 336 are both of an L-shaped structure and can be completely attached to the right angle of the sleeve 32; the inner surfaces of the first positioning plate 335 and the second positioning plate 336 are provided with elastic pads, so that the fixing is more stable, and the positioning device 33 is prevented from moving in the process of scribing an arc line, so that the scribing result is not accurate.

The utility model discloses a theory of operation does:

before the arc is scribed, the base 4 is placed at the position of the circle center of a workpiece needing to scribe the arc, the lower end of the first scribing component is inserted into the base 4, and then the length of the telescopic rod group 3 is adjusted according to actual scribing requirements.

When the length of the telescopic rod group 3 is adjusted, the button head 331 is pressed down to drive the button rod 332 to move downwards, the lower end of the button rod 332 is fixedly connected with the bracket 334, and then the bracket 334 drives the first positioning plate 335 and the second positioning plate 336 to move downwards, so that the first positioning plate 335 and the second positioning plate 336 are separated from the sleeve 32, and the length can be adjusted; after the adjustment is finished, the button head 331 is released, the spring 333 moves the button rod 332 upward, so that the inner surfaces of the first positioning plate 335 and the second positioning plate 336 are attached to the outer wall of the sleeve 32, and the positioning is finished.

During arc marking, the presser foot 13 is screwed to drive the pressure rod 14 to apply pressure downwards to the connecting rod 31 to play a role in fixing, and then the second marking assembly 2 is driven to rotate around the circle center through the telescopic rod group 3, so that marking operation can be completed.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a work piece draws pitch arc frock which characterized in that: the first marking assembly (1) is connected with the second marking assembly (2) through the telescopic rod group (3), the lower end of the first marking assembly (1) is connected with a base (4), the base (4) is of a circular table structure, and the first marking assembly (1) and the second marking assembly (2) are identical in structure; the first marking assembly (1) comprises a main body (11), the main body (11) comprises an upper part and a lower part which are of an integral structure, the upper part is of a cylindrical structure, and a first through hole (15) is formed in the center of the upper part of the main body (11); a first mounting hole is formed in the center of the upper surface of the upper part of the main body (11), and the first mounting hole is communicated with the first through hole (15); the first mounting hole is provided with an internal thread and is in threaded connection with a pressure lever (14), and the other end of the pressure lever (14) is fixedly connected with a pressure foot (13); the lower part of the main body (11) is of a table body structure, a second mounting hole is formed in the center of the lower part of the main body (11) and used for mounting a screw rod (12), and the screw rod (12) is of a cylindrical structure with a conical head at the bottom end; pointer (16) and magnifying glass (17) are fixedly installed on one side of main part (11) lower part, magnifying glass (17) are located the pointer (16) directly over.

2. The workpiece arc scribing tool according to claim 1, wherein: the telescopic rod group (3) comprises a connecting rod (31), a sleeve (32) and a positioning device (33), wherein the sleeve (32) is of a cuboid structure with a circular through hole in the center; the inner diameter of the circular through hole is larger than the diameter of the connecting rod (31); one end of the connecting rod (31) penetrates through the first through hole (15), the end face of the other end of the connecting rod is provided with a concave groove, and a sliding block (311) is installed in the concave groove; the other end of connecting rod (31) cup joints with sleeve pipe (32), sleeve pipe (32) upper surface and lower surface are equipped with bar through-hole (321) respectively, positioner (33) pass bar through-hole (321) and connecting rod (31) fixed connection.

3. The workpiece arc scribing tool according to claim 2, wherein: the positioning device (33) comprises a button head (331), a button rod (332), a bracket (334), a first positioning plate (335) and a second positioning plate (336); the lower end of the button head (331) is fixedly connected with a button rod (332), and the diameter of the button rod (332) is equal to the width of the strip-shaped through hole (321); the middle part of the button rod (332) is fixedly connected with a sliding block (311), the lower end of the button rod (332) is fixedly connected with a bracket (334), the bracket (334) is of an -shaped structure, and the width of the bracket (334) is equal to that of the strip-shaped through hole (321); support (334) both ends are connected a locating plate (335) and No. two locating plates (336) respectively, a locating plate (335) and No. two locating plates (336) are L type structure.

4. The workpiece arc scribing tool according to claim 3, wherein: a spring (333) is arranged below the button head (331).

5. The workpiece arc scribing tool according to claim 3, wherein: elastic pads are arranged on the inner surfaces of the first positioning plate (335) and the second positioning plate (336).

6. The workpiece arc scribing tool according to claim 1, wherein: the upper surface of the base (4) is marked with scales.

7. The workpiece arc scribing tool according to claim 1, wherein: the outer surface of the presser foot (13) is provided with reticular embossing.