CN107498392B - Bar material observation auxiliary tool - Google Patents
Bar material observation auxiliary tool Download PDFInfo
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- CN107498392B CN107498392B CN201710807750.3A CN201710807750A CN107498392B CN 107498392 B CN107498392 B CN 107498392B CN 201710807750 A CN201710807750 A CN 201710807750A CN 107498392 B CN107498392 B CN 107498392B
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- 238000005553 drilling Methods 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 28
- 238000009434 installation Methods 0.000 claims description 18
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 abstract description 10
- 238000003754 machining Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/20—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring workpiece characteristics, e.g. contour, dimension, hardness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/10—Auxiliary devices, e.g. bolsters, extension members
- B23Q3/104—V-blocks
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention is applicable to the technical field of precision tool processing devices, and provides a bar stock observation auxiliary tool which comprises a base and at least one positioning support piece, wherein the positioning support piece is provided with at least two V-shaped grooves, the base is provided with a first mounting structure which is used for being rotationally connected with one positioning support piece through a rotating shaft, and the rotating shaft of the positioning support piece which is rotationally connected with the first mounting structure is perpendicular to the bottom surface of the base; the positioning support piece or the first mounting structure is provided with a plurality of first limiting parts which are used for enabling the end surfaces of the drill rod parts of all bars with the end surfaces to be detected to be coplanar. Compared with the prior art, the auxiliary tool for observing the bar stock has the advantages that the positioning support piece which can rotate and is provided with the V-shaped grooves with different sizes and the first limiting parts are arranged, so that the machining quality of the end faces of the drilling rod parts of the bar stock with various specifications can be observed under the condition that the tool does not move integrally, the steps of searching the visual field again and adjusting the microscope are omitted, and the working efficiency is greatly improved.
Description
Technical Field
The invention belongs to the technical field of precision tool machining devices, and particularly relates to a bar stock observation auxiliary tool.
Background
A bar stock product for manufacturing precision tools includes a shank portion and a drill portion. The drill rod part as a main component of the precision tool needs to observe the machining quality of the end face of the drill rod part by using a microscope, and the handle rod part is generally placed in a V-shaped block which is vertically placed for supporting and positioning during the observation process. The bar products are many, the size of the handle bar part and the whole length of the bar are different, and when the bar with a specific specification is observed, the V-shaped block matched with the bar is required to have the specific specification (such as depth, width, length and the like) for facilitating rotation observation. However, when the on-site bar stock has a large number of sizes and specifications, the V-shaped block tool needs to be frequently replaced when the microscope is used for observing products with different specifications, the tool and the bar stock to be observed disappear from the visual field of the microscope when the tool is replaced once, and at the moment, the microscope needs to be operated to search the visual field again for focusing, so that a great deal of inconvenience is brought to the busy production site.
Disclosure of Invention
The invention aims to provide a bar stock observation auxiliary tool, and aims to solve the technical problem that a V-shaped block observation tool in the prior art cannot be suitable for bar stock observation of different specifications.
In order to achieve the above purpose, the invention adopts the following technical scheme: the auxiliary tool comprises a base and at least one positioning support piece, wherein at least two V-shaped grooves which are respectively used for positioning bars with different sizes are formed in the positioning support piece, a first mounting structure which is used for being rotationally connected with one positioning support piece through a rotating shaft is arranged on the base, and the rotating shaft of the positioning support piece which is rotationally connected with the first mounting structure is perpendicular to the bottom surface of the base; and a plurality of first limiting parts which are used for enabling the end surfaces of the drill rod parts of the bars to be detected to be coplanar are arranged on the positioning support piece or the first mounting structure which is rotationally connected with the first mounting structure.
Further, the positioning support piece is provided with at least two positioning support pieces, the base is provided with a second installation structure which is used for being rotationally connected with a second positioning support piece through the rotating shaft, and the positioning support piece or the second installation structure which is rotationally connected with the second installation structure is provided with a plurality of second limiting parts which are used for enabling the end faces of the drilling rod parts of the bars with the peripheral surfaces to be detected to be coplanar; a second locking mechanism used for positioning the appointed V-shaped groove at a working position is further arranged between the positioning support piece rotationally connected with the second mounting structure and the second mounting structure; the rotating shaft of the positioning support piece, which is rotationally connected with the second mounting structure, and the bottom surface of the base form an included angle.
Further, after the bars with corresponding sizes are installed in different V-shaped grooves on the same positioning support piece, the axial distances from the axes of the bars to the rotating shaft of the positioning support piece are equal.
Further, the first mounting structure comprises two separated first seats, the second mounting structure comprises two separated second seats, and support holes which are in running fit with the rotating shaft are respectively formed in the first seats and the second seats.
Further, a first locking mechanism for positioning the designated V-shaped groove at the working position is further arranged between the positioning support piece and the first mounting structure, wherein the positioning support piece is rotatably connected with the first mounting structure.
Further, the first locking mechanism comprises at least one group of positioning columns arranged on the bottom end surface of the positioning support piece and first positioning holes which are arranged on the first base body at the bottom and matched with the positioning columns; the second locking mechanism comprises at least one group of positioning columns arranged on the bottom end surface of the positioning support piece and second positioning holes which are arranged on the second base body at the bottom and matched with the positioning columns; the length of the positioning support piece along the rotating shaft direction is smaller than the distance between the two first seat bodies, and the length of the positioning support piece along the rotating shaft direction is smaller than the distance between the two second seat bodies.
Further, the first positioning hole and the second positioning hole are respectively provided with a chamfer for facilitating the insertion and the extraction of the positioning column.
Further, the positioning support piece comprises two V-shaped grooves, and the two V-shaped grooves are arranged at 180 degrees relative to the central axis of the rotating shaft; the first locking mechanism comprises two groups of mutually matched positioning columns and first positioning holes, and the two positioning columns and the two first positioning holes are respectively arranged at 180 degrees apart from the central axis of the corresponding rotating shaft; the second locking mechanism comprises two groups of mutually matched positioning columns and second positioning holes, and the two positioning columns and the two second positioning holes are respectively arranged at 180-degree intervals on the central axis of the corresponding rotating shaft.
Further, the first limiting part and the second limiting part are baffle bodies arranged in the V-shaped groove.
Further, the positioning support piece and the rotating shaft are of a split structure, a rotating shaft hole for inserting the rotating shaft is formed in the positioning support piece, and the rotating shaft hole is in clearance fit with the rotating shaft.
Compared with the prior art, the auxiliary tool for observing the bar stock has the advantages that the positioning support piece which can rotate and is provided with the V-shaped grooves with different sizes and the first limiting parts are arranged, so that the machining quality of the end faces of the drill rod parts of bar stocks with different specifications can be observed under the condition that the tool does not move integrally, the height of the end face of each installed drill rod part of the bar stock to be detected is unchanged, an operator can observe the end face of the drill rod part of the bar stock to be detected without adjusting a microscope when switching the bar stock observation, the steps of searching the visual field again and adjusting the microscope are omitted, and the working efficiency is greatly improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a bar stock observation auxiliary tool provided by an embodiment of the invention;
FIG. 2 is a schematic view of the base of FIG. 1;
FIG. 3 is a schematic view of the positioning support of FIG. 1;
FIG. 4 is a schematic end view of the positioning support of FIG. 3;
wherein, each reference sign in the figure:
1. a base; 11. a second mounting plane; 12. a first mounting plane; 13. a bottom surface of the base; 14. a support hole; 15. a second seat body; 151. a second positioning hole; 16. a first base; 161. a first positioning hole; 2. positioning the support; 21. a rotating shaft; 22. positioning columns; 23. a baffle; 24. a V-shaped groove; 3. a bar stock; 31. a handle bar portion; 32. a drill rod part.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It should be noted that the terms "length," "width," "height," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," "tail," and the like indicate an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the invention.
It should also be noted that unless explicitly stated or limited otherwise, terms such as "mounted," "connected," "secured," "disposed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "second," "first," and the like 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 defining "a second" or "a first" may explicitly or implicitly include one or more such feature. Furthermore, the meaning of "a plurality of", "a number" is two or more, unless explicitly defined otherwise.
Referring to fig. 1 to 3, an embodiment of the bar stock observation auxiliary tool provided by the present invention will now be described. The auxiliary tool for observing the bar stock comprises a base 1 and at least one positioning support piece 2. The base 1 can be a cuboid, a prism and other structures, the positioning support piece 2 is provided with a rotating shaft 21, the base 1 is provided with a first installation structure which is used for being rotationally connected with one positioning support piece 2 through the rotating shaft 21, and the first installation structure can be an installation support structure such as a bearing and a support. Each positioning support 2 is provided with at least two V-grooves 24 of different sizes for positioning and supporting bars of different sizes. In addition, in order to facilitate observation of the end face of the drill rod portion 32, the rotation shaft 21 of the positioning support 2 rotatably connected to the first mounting structure is disposed perpendicularly to the base bottom surface 13. Because the lengths of different bars 3 are different, a plurality of first limiting parts for enabling the end surfaces of the drill rod parts 32 of the bars 3 with the end surfaces to be detected to be coplanar are arranged on the positioning support piece 2 or the first mounting structure which is rotationally connected with the first mounting structure, namely, after the bars 3 with the end surfaces to be detected with various specifications are mounted in the corresponding V-shaped grooves 24, the heights of the end surfaces of the drill rod parts 32 of the bars 3 are equal in the vertical direction; the first limiting part can be a baffle plate and a stop block arranged on the first mounting structure or a baffle plate and a stop block arranged in the corresponding V-shaped groove 24, and the first limiting part is used for axially positioning and supporting the bar 3 at different positions according to the bar 3 with different specifications, so that the end faces of the drill rod parts of each bar 3 are coplanar, and an operator does not need to adjust the microscope after switching and observing the bar. When the bar stock observation auxiliary tool provided by the embodiment of the invention is used, firstly, the tool is placed on a stage of a microscope, the V-shaped groove 24 of the corresponding positioning support 2 is selected according to the bar stock to be observed, then the positioning support 2 is rotated to be switched to the V-shaped groove 24 matched with the bar stock, the bar stock 3 is placed in the V-shaped groove 24, namely, the handle rod part 31 of the bar stock 3 is placed in the V-shaped groove 24 and is axially positioned and supported by the corresponding first limiting part, the base of the bar stock observation auxiliary tool provided by the embodiment of the invention is moved, the focal length is adjusted to find the visual field, and the end surface observation can be performed on the good focus. In view, it is necessary to turn the bar for viewing due to the non-planar end face. When the rod materials with other outer diameter sizes are required to be observed, after the rotary positioning support piece 2 is switched to the V-shaped groove 24 matched with the rod material 3, the rod material 3 is put into the rod material, and the newly loaded rod material to be measured is still in the visual field of the microscope because the tool is not integrally moved in the switching process, the end face height of the drill rod part 32 of the switched rod material 3 is not changed, and an operator can directly observe without adjusting the focal length of the microscope, so that the working efficiency is improved.
Compared with the prior art, the bar observation auxiliary tool provided by the embodiment of the invention has the advantages that the positioning support piece which can rotate and is provided with the plurality of V-shaped grooves with different sizes and the plurality of first limiting parts are arranged, so that the tool can observe the processing quality of the end faces of the drill rod parts of bars with different specifications under the condition that the tool does not move integrally, the height of the end face of each installed bar to be measured drill rod part is unchanged, an operator can observe the end face of the drill rod part of the bar to be measured without adjusting a microscope when switching bar observation, the steps of searching the visual field again and adjusting the microscope are omitted, and the working efficiency is greatly improved.
Further, referring to fig. 1 and fig. 2, as a specific implementation manner of the auxiliary tool for bar stock observation provided in the embodiment of the present invention, the positioning support member 2 has at least two, the base 1 is provided with a second mounting structure for rotationally connecting with the second positioning support member 2 through the rotating shaft 21, and a second locking mechanism for positioning the designated V-shaped groove in the working position is further provided between the positioning support member 2 and the second mounting structure, where the second locking mechanism may be a common braking locking mechanism for preventing rotation, such as mechanical, hydraulic, pneumatic or electromagnet. The rotating shaft 21 of the positioning support 2 which is rotationally connected with the second mounting structure is arranged at an included angle with the bottom surface 13 of the base. Since it is sometimes also necessary to observe the circumference of the drill rod portion 32 of the bar 3, after the end face of the bar 3 is observed on the positioning support 2 of the first mounting structure, the bar 3 is loaded on the positioning support 2 of the second mounting structure to observe the circumference of the drill rod portion 32, so that the circumference and the end face of the bar can be observed on the same tool. Likewise, a plurality of second limiting parts for enabling the end faces of the drill rod parts 32 of the bars 3 to be detected on the peripheral surface to be coplanar are arranged on the positioning support 2 or the second mounting structure which is rotationally connected with the second mounting structure. After the bars 3 with the circumferential surfaces of various specifications to be inspected are arranged in the corresponding V-shaped grooves 24, the end surface heights of the bar 3 drilling rod parts 32 are all on the same plane; the second limiting part can be a baffle plate and a baffle plate arranged on the second mounting structure or a baffle plate and a baffle plate arranged in the corresponding V-shaped groove 24, and the baffle plate are arranged at different positions according to the bars 3 with different specifications so as to axially position and support the bars 3, thus the end faces of the drill rod parts of each bar 3 are coplanar, when the circumferential surfaces of the drill rod parts 32 of the bars are switched and observed, the drill rod parts 32 of the bars 3 with the front and rear different specifications are basically positioned at the same horizontal position, after the V-shaped groove 24 is switched and the other bar 3 is arranged, the circumferential surfaces of the drill rod parts 32 of the new bar 3 do not disappear in the visual field of a microscope, and an operator only needs to finely adjust the focal length of the microscope to observe. When the auxiliary tool for observing the bar stock is used for observing the peripheral surface, firstly, a corresponding V-shaped groove 24 is selected according to the bar stock to be observed, then, the rotary positioning support 2 is switched to the V-shaped groove 24 matched with the bar stock, the second locking mechanism is used for braking the positioning support 2, the bar stock 3 is put into the V-shaped groove 24, namely, the handle rod part 31 of the bar stock 3 is put into the V-shaped groove 24 and is axially positioned and supported by a corresponding second limiting part, the microscope is adjusted to find the visual field and focus, and the operator also needs to manually rotate the bar stock 3 and/or axially move the bar stock 3 to observe the peripheral surface of the bar stock 3 during observation. When bars with other outer diameter sizes are required to be observed, the second locking mechanism can be unlocked, then the rotary positioning support 2 is switched to the V-shaped groove 24 matched with the bar 3, then the second locking mechanism is used for braking the positioning support 2, and then the bar 3 is put in, because the switching process does not integrally move the tool, and the drill rod parts 32 of the bars 3 with different specifications are basically positioned at the same horizontal position, the newly loaded bars to be measured are still in the field of view of the microscope, and the sizes of the bars to be observed are different, but the sizes of the drill rod parts 32 of the bars for manufacturing the precision tool are very small and have little difference, so that the height of the bar 3 in the V-shaped groove 24 after the switching is not greatly changed from the height of the bar 3 in the original V-shaped groove 24, and thus the bar 3 can be observed only by fine adjustment of the focal length of the microscope under the microscope, thereby improving the working efficiency.
Further, referring to fig. 1 to 3, the second mounting structure includes two separate second seats 15, the first mounting structure includes two separate first seats 16, and each second seat 15 and each first seat 16 are respectively provided with a support hole 14 in rotation fit with the rotation shaft 21. The switching of the V-groove 24 is achieved by rotation of the spindle 21 in the support hole 14. Alternatively, the first seat 16 may also be used as one of the first limiting portions for axially positioning the support bar 3, and the other first limiting portions may be stoppers disposed in the corresponding V-grooves 24; meanwhile, the second seat body 15 can also be used as one of second limiting parts for axially positioning and supporting the bar 3, and other second limiting parts can be baffle bodies arranged in corresponding V-shaped grooves 24.
Further, as a specific implementation manner of the bar stock observation auxiliary tool provided by the embodiment of the invention, the setting positions of the first mounting structure and the second mounting structure on the base 1 preferably satisfy: the axes (center lines) of the rotating shafts 21 of the two positioning supports 2 respectively mounted on the first mounting structure and the second mounting structure are coplanar and intersect, and when two bar stock 3 of the same specification are simultaneously mounted in the respective bar stock 32 end face observation positioning support 2 (in the respective V-shaped grooves 24) and the respective bar stock 32 peripheral face observation positioning support 2 (in the respective V-shaped grooves 24), the bar stock 32 end face of the bar stock whose end face is to be observed is present in the field of view of the microscope, and after the bar stock 32 peripheral face of the bar stock whose other peripheral face is to be observed is present in the field of view of the microscope only by moving axially along the bar stock. When the bar stock observation auxiliary tool provided by the embodiment of the invention is used for observing the peripheral surface and the end surface of the drill rod part 32, firstly, one positioning support piece 2 is switched to the other positioning support piece 2 to observe the peripheral surface of the drill rod part 32 after observing the end surface of the drill rod part 32, the tool does not need to be integrally moved, and bars to be detected on the peripheral surface only move along the axial direction of the bars to be detected can be in the visual field of a microscope, so that the bars 3 do not need to be focused by adjusting a coarse regulator in a large range under the microscope, and only need to adjust a fine regulator in a small range, thereby improving the working efficiency.
Further, referring to fig. 1 to 2, as a specific implementation manner of the bar observation auxiliary tool provided by the embodiment of the present invention, a second installation plane 11 and a first installation plane 12 are further provided on the base 1, the second seat 15 is vertically disposed on the second installation plane 11, the first seat 16 is vertically disposed on the first installation plane 12, the second installation plane 11, the first installation plane 12 and the base bottom surface 13 are intersecting planes two by two, and the first installation plane 12 is perpendicular to the base bottom surface 13.
Specifically, referring to fig. 1 and 2, a base 1 is a right trapezoid body with a right trapezoid cross section; the second mounting plane 11 and the base bottom surface 13 are respectively a hypotenuse face of a right-angled trapezoid and a right-angle side face opposite to the hypotenuse face, and the first mounting plane 12 is a large bottom surface of the right-angled trapezoid.
Further, referring to fig. 3 and 4, after installing bars 3 with corresponding sizes in different V-shaped grooves 24 on the same positioning support 2, the axial distances from the axes of the bars 3 to the rotating shaft 21 of the positioning support 2 are equal, that is, the distance relationship between the groove bottoms of the V-shaped grooves 24 and the rotation center of the positioning support 2 is as follows: the distances from the center line of the drill rod portion 32 of each bar 3 placed on each V-groove 24 to the rotation center of the positioning support 2 are made equal, the drill rod portion 32 and the shank rod portion 31 are concentric bars, and the distances from the center line of each drill rod portion 32 to the rotation center of the positioning support 2 are made equal, that is, the distances from the center line of each shank rod portion 31 to the rotation center of the positioning support 2 are made equal. Referring to fig. 4, the positioning support 2 is provided with V-shaped grooves 24 of two different sizes. The distances from the bottoms of the two V-grooves 24 to the rotation center of the positioning support 2 are |ao| and |eo|, respectively, and the set length relationships of |ao| and |eo| should satisfy the equality of distances from the center line of the drill rod portion 32 of the two bars to the rotation center of the positioning support 2, i.e., |bo|= |fo|. When observing the circumference of the drill rod portion 32 of the bar 3, when the distances from the center line of the drill rod portion 32 of each bar 3 loaded on each V-shaped groove 24 to the rotation center of the positioning support 2 are equal, each time the V-shaped groove 24 is switched to observe different bar circumferences, since the change of the outer diameter dimension of the drill rod portion 32 is very small (generally between 0.1 and 0.45 mm), the change of the outer circumference height of the bar on the V-shaped groove 24 is very small, and an operator only needs to finely adjust the focal length of the microscope to observe the bar circumference, thereby further improving the efficiency. When observing the end face of the drill rod part 32 of the bar 3, when the distances from the center line of the drill rod part 32 of each bar 3 loaded on each V-shaped groove 24 to the rotation center of the positioning support 2 are equal, each time the V-shaped groove 24 is switched to observe the end face of the drill rod part 32 of a different bar, the end faces are basically positioned in the center of the microscope field, and an operator can observe the processing quality of the end face of the bar under the microscope without moving the whole tool, thereby further improving the efficiency. It can also be inferred from the above idea if the positioning support 2 is provided with more than two V-shaped grooves 24.
Specifically, referring to fig. 4, the 90-degree included angle V-groove of the V-groove 24 is obtained by pushing down, so that the distances from the center line of the drill rod portion 32 of the two bars to the rotation center of the positioning support 2 are equal, i.e., |bo|= |fo|, and the distances from the bottom of the two V-grooves 24 to the rotation center of the positioning support 2, i.e., |ao| and|eo|, are set to satisfy the following equation:
where r1 is the radius of the stem of the larger bar and r2 is the radius of the stem of the smaller bar.
Further, a first locking mechanism for positioning the designated V-groove 24 in the working position is provided between the positioning support 2 rotatably connected to the first mounting structure and the first mounting structure. The first locking mechanism may be a conventional anti-rotation mechanical, hydraulic, pneumatic or electro-magnetic brake locking mechanism. By providing the first locking mechanism, the positioning support member 2 can be prevented from rotating relative to the first mounting structure during observation of the end face of the drill rod portion 32 of the bar 3, thereby facilitating observation. When it is desired to switch the V-groove 24, unlocking the first locking mechanism enables the positioning support 2 to rotate relative to the first mounting structure.
Further, referring to fig. 1 to 3, the second locking mechanism includes at least one set of positioning posts 22 disposed on the bottom end surface of the positioning support 2 and second positioning holes 151 disposed on the second base 15 at the bottom and matched with the positioning posts 22, the first locking mechanism includes at least one set of positioning posts 22 disposed on the bottom end surface of the positioning support 2 and first positioning holes 161 disposed on the first base 16 at the bottom and matched with the positioning posts 22, the length of the positioning support 2 along the direction of the rotation axis 21 thereof is smaller than the interval between the two second bases 15, and the length of the positioning support 2 along the direction of the rotation axis thereof is smaller than the interval between the two first bases, so that the positioning support 2 can be moved to lock and unlock the positioning posts 22 with the second positioning holes 151 or the first positioning holes 161. The positioning column 22 and the second positioning hole 151 (or the first positioning hole 161) are respectively arranged on the bottom end surface of the positioning support 2 and the bottom second seat 15 (or the bottom first seat 16) adjacent to the bottom end surface, so that the positioning column 22 can be always inserted into the second positioning hole 151 or the first positioning hole 161 to realize self-locking under the condition of not being subjected to manpower by utilizing the self gravity of the positioning support 2. When the V-shaped groove 24 is required to be switched, the positioning support 2 is only required to be moved to separate the positioning column 22 from the second positioning hole 151 (or the first positioning hole 161), and when the processing quality is observed, the positioning column 22 is only required to be inserted into the second positioning hole 151 or the first positioning hole 161 to be locked. When the positioning hole and the positioning column are used as the locking mechanism, the manufacturing is easy, and the locking and unlocking operations are simple and convenient.
Further, referring to fig. 1 and 3, as a specific implementation manner of the auxiliary tool for observing bar stock provided in the embodiment of the present invention, the second positioning hole 151 and the first positioning hole 161 are respectively provided with a chamfer for facilitating insertion and extraction of the positioning post 22. Preferably, the end of the positioning post 22 is provided with a chamfer for facilitating insertion into the second positioning hole 151 or the first positioning hole 161.
Further, referring to fig. 1 to 3, as a specific implementation manner of the auxiliary tool for observing bar stock provided in the embodiment of the present invention, the positioning support 2 includes two V-shaped grooves 24, and the two V-shaped grooves 24 are disposed 180 degrees apart from the central axis of the rotating shaft 21; the second locking mechanism comprises two groups of mutually matched positioning columns 22 and second positioning holes 151, and the two groups of positioning columns 22 and the second positioning holes 151 are arranged at 180 degrees relative to the central axis of the corresponding rotating shaft 21; the first locking mechanism includes two sets of mutually matched positioning posts 22 and first positioning holes 161, and the two sets of positioning posts 22 and the first positioning holes 161 are arranged at 180 degrees relative to the central axis of the corresponding rotating shaft 21. When the V-groove 24 is to be switched, the positioning support 2 is simply rotated by half a turn and then locked by two sets of positioning posts 22 and second positioning holes 151 (or first positioning holes 161) spaced 180 degrees apart from each other.
Further, the positioning support 2 and the rotating shaft 21 are of a split structure, a rotating shaft hole for inserting the rotating shaft 21 is formed in the positioning support 2, and the rotating shaft hole is in clearance fit with the rotating shaft 21. The positioning support 2 and the rotating shaft 21 adopting the split structure are more beneficial to locking and unlocking the operation positioning column 22 and the second positioning hole 151 (or the first positioning hole 161), when locking or unlocking operation is required, the rotating shaft 21 can not move, and only the positioning support 2 is moved to enable the positioning column 22 and the second positioning hole 151 (or the first positioning hole 161) to be combined or separated.
Further, referring to fig. 1 and 2, in order to facilitate manufacturing of the auxiliary tool for bar stock observation provided in the embodiment of the present invention, the support hole 14 on the second base 15 at the upper part is a through hole, the support hole 14 on the first base 16 at the upper part is also a through hole, the support hole 14 on the second base 15 at the bottom is a blind hole, and the support hole 14 on the first base 16 at the bottom is also a blind hole, so that the rotating shaft 21 can conveniently penetrate from one side of the through hole to be erected on the support wall 14.
Further, referring to fig. 3, the first limiting portion and the second limiting portion may be a blocking body 23 disposed in the V-shaped groove 24, and the blocking body 23 may not be limited to a structure such as a baffle, a cylinder, or a blocking ring.
Further, referring to fig. 3, the blocking body 23 is specifically a cylinder disposed in the V-shaped groove 24.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (9)
1. Auxiliary fixtures is observed to bar, its characterized in that: the positioning support piece is provided with at least two V-shaped grooves respectively used for positioning bars with different sizes, the base is provided with a first installation structure which is rotationally connected with one positioning support piece through a rotating shaft, and the rotating shaft of the positioning support piece which is rotationally connected with the first installation structure is perpendicular to the bottom surface of the base; the positioning support piece or the first mounting structure is provided with a plurality of first limiting parts which are used for enabling the end surfaces of the drill rod parts of the bars to be detected to be coplanar, after the bars to be detected with various specifications are mounted in the corresponding V-shaped grooves, the heights of the end surfaces of the drill rod parts of the bars are equal in the vertical direction, and the first limiting parts are used for axially positioning and supporting the bars so that the end surfaces of the drill rod parts of the bars are coplanar; after bars with corresponding sizes are arranged in different V-shaped grooves on the same positioning support piece, the axial distances from the axes of the bars to the rotating shaft of the positioning support piece are equal.
2. A bar stock viewing aid as recited in claim 1, wherein: the base is provided with a second installation structure which is used for being rotationally connected with a second positioning support piece through the rotating shaft, and a plurality of second limiting parts which are used for enabling the end faces of the drilling rod parts of the bars to be detected on the peripheral surface to be coplanar are arranged on the positioning support piece or the second installation structure which is rotationally connected with the second installation structure; a second locking mechanism used for positioning the appointed V-shaped groove at a working position is further arranged between the positioning support piece rotationally connected with the second mounting structure and the second mounting structure; the rotating shaft of the positioning support piece, which is rotationally connected with the second mounting structure, and the bottom surface of the base form an included angle.
3. A bar stock viewing aid as claimed in claim 2, wherein: the first mounting structure comprises two separated first seats, the first seats are vertically arranged on the first mounting plane, the second mounting structure comprises two separated second seats, the second seats are vertically arranged on the second mounting plane, and supporting holes which are in rotary fit with the rotating shafts are respectively formed in the first seats and the second seats.
4. A bar stock viewing aid as claimed in claim 3, wherein: and a first locking mechanism used for enabling the appointed V-shaped groove to be positioned at the working position is further arranged between the positioning support piece and the first mounting structure, wherein the positioning support piece is rotatably connected with the first mounting structure.
5. A bar stock viewing aid as recited in claim 4, wherein: the first locking mechanism comprises at least one group of positioning columns arranged on the bottom end surface of the positioning support piece and first positioning holes which are arranged on the first seat body at the bottom and matched with the positioning columns; the second locking mechanism comprises at least one group of positioning columns arranged on the bottom end surface of the positioning support piece and second positioning holes which are arranged on the second base body at the bottom and matched with the positioning columns; the length of the positioning support piece along the rotating shaft direction is smaller than the distance between the two first seat bodies, and the length of the positioning support piece along the rotating shaft direction is smaller than the distance between the two second seat bodies.
6. A bar stock viewing aid as recited in claim 5, wherein: the first positioning hole and the second positioning hole are respectively provided with a chamfer for facilitating the insertion and the extraction of the positioning column.
7. A bar stock viewing aid as recited in claim 5, wherein: the positioning support piece comprises two V-shaped grooves, and the two V-shaped grooves are arranged at 180 degrees relative to the central axis of the rotating shaft; the first locking mechanism comprises two groups of mutually matched positioning columns and first positioning holes, and the two positioning columns and the two first positioning holes are respectively arranged at 180 degrees apart from the central axis of the corresponding rotating shaft; the second locking mechanism comprises two groups of mutually matched positioning columns and second positioning holes, and the two positioning columns and the two second positioning holes are respectively arranged at 180-degree intervals on the central axis of the corresponding rotating shaft.
8. A bar stock viewing aid as claimed in claim 2, wherein: the first limiting part and the second limiting part are baffle bodies arranged in the V-shaped groove.
9. A bar stock viewing aid as claimed in claim 1 or claim 2, wherein: the positioning support piece and the rotating shaft are of a split structure, a rotating shaft hole for the rotating shaft to be inserted is formed in the positioning support piece, and the rotating shaft hole is in clearance fit with the rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710807750.3A CN107498392B (en) | 2017-09-08 | 2017-09-08 | Bar material observation auxiliary tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710807750.3A CN107498392B (en) | 2017-09-08 | 2017-09-08 | Bar material observation auxiliary tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107498392A CN107498392A (en) | 2017-12-22 |
| CN107498392B true CN107498392B (en) | 2023-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710807750.3A Active CN107498392B (en) | 2017-09-08 | 2017-09-08 | Bar material observation auxiliary tool |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117260834B (en) * | 2023-11-20 | 2024-02-09 | 江苏君华特种高分子材料股份有限公司 | PEEK extruder bar length detection device |
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|---|---|
| CN107498392A (en) | 2017-12-22 |
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