CN211103945U

CN211103945U - Marking off chi and location frock

Info

Publication number: CN211103945U
Application number: CN201922083263.4U
Authority: CN
Inventors: 马艳艳
Original assignee: Shanghai Sany Heavy Machinery Co Ltd
Current assignee: Shanghai Sany Heavy Machinery Co Ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-07-28
Anticipated expiration: 2029-11-27

Abstract

The utility model provides a marking off chi and location frock relates to excavator production frock technical field. The marking ruler comprises a main ruler, a positioning structure and a marking structure. The main scale extends in a straight line. The positioning structure is arranged at one end of the main scale and used for positioning the end part of the main scale at the circle centers of the two supporting inner holes. The line marking structure is connected with the main scale in a sliding mode and used for marking lines on the bucket rod. The utility model also provides a location frock, it has adopted foretell marking off chi. The utility model provides a marking off chi and location frock can use two supporting holes as the accurate marking off of benchmark on the dipper, and then improves the screw seat and installs in the installation accuracy of screw seat sensor.

Description

Marking off chi and location frock

Technical Field

The utility model relates to an excavator production frock technical field particularly, relates to a marking off chi and location frock.

Background

In major engineering projects, an excavator is usually required to carry out excavating action, and a plurality of parts are required to be assembled on the excavator.

However, in the prior art, in the production of an excavator, a screw seat on a working device is welded through a tooling positioning, however, in the development and trial production process of the excavator, production equipment is immature due to the trial production stage, and often, positioning of some parts does not have a proper tool, and for positioning of some parts without tooling, only manual scribing positioning is performed, which may affect the machining precision of the parts.

In order to attach a sensor to an excavator arm, a wire holder needs to be welded to a side surface of the arm with reference to the two supports of the arm. For the welding of the screw seat without a positioning tool, a field operator directly scribes through the ruler and the visual inspection circle center, the precision is very low, and the design requirement cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a marking off chi, for example, it can use two supporting holes as the accurate marking off of benchmark on the dipper, and then improves the screw seat and installs in the installation accuracy of screw seat sensor.

The utility model discloses a purpose still includes, provides a location frock, and it can use two supporting holes as the accurate marking off of benchmark on the dipper, and then improves the screw seat and installs in the installation accuracy of screw seat sensor.

The embodiment of the utility model discloses a can realize like this:

an embodiment of the utility model provides a marking off chi for the location of the sensor installation of using two supporting holes as the benchmark on the dipper is marked off, the marking off chi includes main scale, location structure and marking off structure.

The main scale extends along a straight line.

The positioning structure is arranged at one end of the main scale and used for positioning the end part of the main scale at the circle centers of the two supporting inner holes.

The line marking structure is slidably connected to the main scale and is used for marking lines on the bucket rod.

Optionally, the positioning structure comprises a chuck, a plurality of positioning rods and a plurality of jaws.

The chuck is arranged at the end part of the main scale.

The positioning rods are arranged on the outer circumference of the chuck at equal intervals.

The clamping jaws are movably arranged on the positioning rods respectively and used for abutting against the inner peripheral walls of the two supporting inner holes.

Alternatively, the jaws extend in a straight line and are perpendicular to the positioning rod.

Optionally, the outer side of the clamping jaw is provided with a first abutting portion, the first abutting portion is used for abutting against the inner peripheral walls of the two supporting inner holes, and the cross-sectional area of the first abutting portion is gradually reduced along the direction away from the clamping jaw.

Optionally, a second abutting portion is arranged on the inner side of the clamping jaw, and the second abutting portion and the first abutting portion are symmetrically arranged relative to the clamping jaw.

Optionally, a sliding rod perpendicular to the main scale is arranged at the end of the main scale, and the positioning structure is slidably connected to the sliding rod.

Optionally, the end of the slide bar, which is far away from the main scale, is provided with a limiting part, and the cross-sectional area of the limiting part is larger than that of the slide bar.

Optionally, the scoring structure comprises a lateral scoring ruler, a secondary ruler and a longitudinal scoring ruler.

The transverse marking ruler extends along a straight line perpendicular to the main ruler, and the end of the transverse marking ruler is connected with the main ruler in a sliding mode.

The auxiliary ruler is fixedly connected with the transverse marking ruler, the auxiliary ruler is perpendicular to the main ruler, and the auxiliary ruler is perpendicular to the transverse marking ruler.

The vertical scribing ruler is connected to the auxiliary ruler in a sliding mode and is parallel to the horizontal scribing ruler, and the vertical scribing ruler is used for scribing on the bucket rod.

Optionally, the auxiliary ruler and the longitudinal scribing ruler are disposed on two sides of the transverse scribing ruler, and the two auxiliary rulers are symmetrically disposed with respect to the main ruler.

A positioning tool comprises a marking ruler. The scribing ruler comprises a main ruler, a positioning structure and a scribing structure.

The main scale extends along a straight line.

The utility model provides a marking off chi includes for prior art's beneficial effect, for example:

the utility model provides a marking off chi is when using, and location structure can be with the tip of main scale location in the centre of a circle of two supporting holes, when being in the dipper under the horizontally state, can set up the main scale in the horizontality, follows the main scale slip marking off structure this moment to marking off through the marking off structure in predetermined position, just can provide accurate positioning action to the screw seat. Wherein, through the centre of a circle of two supporting holes of location structure accurate ground location, just can make the straight line in main scale place through the centre of a circle of two supporting holes, just can make the accurate location of providing that is used for the screw base installation of lineation structure ability and rule, improve the installation precision of screw base, and then improve the installation precision of sensor.

The utility model also provides a location frock, it has adopted foretell marking off rule to this location frock is the same for prior art's beneficial effect with the above-mentioned marking off rule that provides for prior art's beneficial effect for prior art, no longer gives unnecessary details here.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural view of a dipper;

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

fig. 3 is a schematic structural view of a first view angle of the marking ruler applied to the dipper according to the first embodiment of the present invention;

fig. 4 is a schematic structural view of a second viewing angle at which the marking ruler provided in the first embodiment of the present invention is applied to the dipper.

Icon: 10-a marking ruler; 11-a bucket rod; 12-two support inner holes; 13-a through hole; 14-a wire seat; 100-a positioning structure; 110-a chuck; 120-a positioning rod; 130-jaws; 131-a first abutting portion; 132-a second holding portion; 200-main scale; 210-a slide bar; 211-a limiting part; 300-scribe line configuration; 310-crossline ruler; 320-auxiliary ruler; 330-longitudinal drawing rule.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the products of the present invention are used, the description is only for convenience of description and simplification, but the indication or suggestion that the indicated device or element must have a specific position, be constructed and operated in a specific orientation, and thus, should not be interpreted as a limitation of the present invention.

Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

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

First embodiment

The embodiment provides a marking ruler 10, and the marking ruler 10 can be used for marking on a bucket rod 11 and is used for installing and positioning a screw seat 14 through the marking, so that the installation accuracy of the screw seat 14 can be improved, and the installation accuracy of a sensor installed on the screw seat 14 can be improved. That is, the scribing ruler 10 according to the present embodiment can scribe a line accurately on the arm 11 with reference to the two support inner holes 12, and further improve the mounting accuracy of the wire bed 14 and the sensor mounted on the wire bed 14.

It should be noted that, as shown in fig. 1, the arm 11 has a large end and a small end, a through hole 13 is opened on the small end of the arm 11, two supporting inner holes 12 are opened at one end close to the lower end, and the two supporting inner holes 12 and the through hole 13 have a certain distance. When the arm 11 is in a horizontal state, the axis of the through hole 13 and the axis of the two support inner holes 12 are located on the same horizontal plane. In this case, the mounting position of the at least one screw receptacle 14 is likewise located in the horizontal plane of the axes of the two bearing bores 12.

Referring to fig. 2, the scribing ruler 10 includes a main ruler 200, a positioning structure 100 and a scribing structure 300. The main scale 200 extends in a straight line. The positioning structure 100 is disposed at one end of the main ruler 200, and the positioning structure 100 is used for positioning the end of the main ruler 200 at the center of the two supporting inner holes 12. The scribing structure 300 is slidably coupled to the main scale 200, and the scribing structure 300 is used to scribe a line on the arm 11.

It should be noted that, referring to fig. 2, fig. 3 and fig. 4, in the present embodiment, when it is necessary to mark a line on the bucket rod 11 by the marking ruler 10, the bucket rod 11 is first adjusted to be horizontal, that is, the horizontal of the bucket rod 11 is adjusted by observing whether the through hole 13 and the two support inner holes 12 are located on the same horizontal plane, and when the axis of the through hole 13 and the axis of the two support inner holes 12 are located on the same horizontal plane, the bucket rod 11 is in a horizontal state. After confirming that the bucket rod 11 is in the horizontality, stretch into inside two supporting bores 12 with location structure 100, and then can be through location structure 100 with the tip of main scale 200 accurately be located the centre of a circle of two supporting bores 12, then adjust the state that is on a parallel with the horizontal plane with main scale 200, draw a line through sliding to suitable position along main scale 200 with line structure 300, just can realize the dress of the essence of screw seat 14 installation and draw a line, and then realize that the accuracy of screw seat 14 installation improves to and improve the purpose of the precision of sensor installation.

Further, the positioning structure 100 includes a chuck 110, a plurality of positioning rods 120, and a plurality of jaws 130. The chuck 110 is provided at an end of the main scale 200. A plurality of positioning rods 120 are disposed at equal intervals on the outer circumference of the chuck 110. The plurality of claws 130 are movably disposed on the plurality of positioning rods 120, respectively, and the plurality of claws 130 are used for abutting against the inner peripheral wall of the two support inner holes 12.

The position of the chuck 110 corresponds to the end of the main scale 200, that is, when the chuck 110 corresponds to the central axis of the two supporting bores 12, the end of the main scale 200 also corresponds to the central axis of the two supporting bores 12. When the positioning structure 100 is used to position the circle centers of the two supporting inner holes 12, the plurality of claws 130 are slid along the plurality of positioning rods 120, and the claws 130 are abutted against the inner peripheral walls of the two supporting inner holes 12, and the distances between the plurality of claws 130 and the chuck 110 need to be equal, so that the chuck 110 can be positioned on the central axis of the two supporting inner holes 12, and the purpose of positioning the end of the main scale 200 at the circle centers of the two supporting inner holes 12 can be achieved.

In the present embodiment, the length of the positioning rod 120 is greater than the radius of the two supporting inner holes 12, so as to ensure that the positioning rod 120 can be overlapped on the bucket rod 11 and prevent the positioning structure 100 from sliding into the two supporting inner holes 12 as a whole. In addition, in this embodiment, the positioning rod 120 may be further provided with a scale (not shown) indicating a length, so that the distance between the jaws 130 and the chuck 110 may be easily adjusted, and the distance between the jaws 130 and the chuck 110 may be adjusted to be the same. Further, a first fixing member (not shown) may be disposed at a connection position of the claw 130 and the positioning rod 120, and the first fixing member may be configured to fix the claw 130 and the positioning rod 120 when the claw 130 slides to a proper position, so as to prevent the claw 130 from sliding relative to the positioning rod 120, and further improve the positioning accuracy of the positioning structure 100. The first fixing piece can be a screw movably arranged on the jaw 130, a corresponding threaded hole is formed in the jaw 130, the screw can penetrate through the threaded hole and abut against the positioning rod 120, and therefore the purpose that the positioning rod 120 and the jaw 130 are fixed to each other is achieved.

Further, in the present embodiment, the jaws 130 extend in a straight line, and the jaws 130 are perpendicular to the positioning rod 120. The accuracy provided by the positioning structure 100 is further improved by disposing the jaws 130 perpendicular to the positioning rod 120 so that the jaws 130 abut against the inner peripheral walls of the two support bores 12 and so that the distance between the jaws 130 and the chuck 110 can be easily determined. Of course, in other embodiments, the arrangement of the jaws 130 may be different, for example, the jaws 130 form an acute angle with the positioning rod 120.

Alternatively, the outer side of the claw 130 is provided with a first abutting portion 131, the first abutting portion 131 is used for abutting against the inner peripheral wall of the two support inner holes 12, and the cross-sectional area of the first abutting portion 131 is gradually reduced along the direction away from the claw 130. Through the abutting action of the first abutting portion 131 and the two supporting inner holes 12, the stability of the claw 130 abutting against the inner peripheral walls of the two supporting inner holes 12 can be ensured, and when impurities such as soil are attached to the inner peripheral walls of the two supporting inner holes 12, the claw can be inserted into the impurities such as soil through the first abutting portion 131 and abut against the inner peripheral walls of the two supporting inner holes 12. It should be understood that in other embodiments, the first abutting portion 131 may be eliminated.

It should be noted that the scribing ruler 10 provided in the present embodiment is not only suitable for positioning the center of a hole, but the scribing ruler 10 can also be used for positioning the center of a cylindrical part. When the center of a circle of the cylindrical part is positioned, the clamping jaws 130 are clamped on the periphery of the cylindrical part, the distances between the clamping jaws 130 and the chuck 110 are equal, and the center of the circle of the cylindrical part can be positioned through the chuck 110. Optionally, the inner side of the claw 130 is provided with a second abutting portion 132, and the second abutting portion 132 and the first abutting portion 131 are symmetrically arranged with respect to the claw 130. The second abutting portion 132 is symmetrically arranged with the first abutting portion 131, and is arranged on the inner side of the claw 130, so that when the center of a circle of the columnar part is positioned, impurities such as soil and the like can be inserted into the outer side of the columnar part through the second abutting portion 132, the second abutting portion 132 can abut against the periphery of the columnar part, and the accuracy of the positioning structure 100 in positioning the center of the circle of the columnar part is improved. Similarly, in other embodiments, the second abutting portion 132 may be eliminated.

Further, a sliding rod 210 perpendicular to the main scale 200 is disposed at an end of the main scale 200, and the positioning structure 100 is slidably connected to the sliding rod 210. In the present embodiment, the chuck 110 is slidably connected to the sliding rod 210, so that when the chuck 110 can drive the positioning rod 120 and the plurality of claws 130 to slide along the sliding rod 210, the positioning structure 100 can accommodate two supporting inner holes 12 with different depths, and the position of the main scale 200 can be adjusted, so as to facilitate the scribing structure 300 to scribe lines on the arm 11.

It should be noted that, in the present embodiment, the cross section of the sliding rod 210 is square, and a sliding hole (not shown) adapted to the sliding rod 210 is formed inside the chuck 110, so as to realize the sliding connection between the chuck 110 and the sliding rod 210 through the sliding fit of the sliding hole and the sliding rod 210. Because the cross section and the slide hole of the slide bar 210 are square, the chuck 110 can be prevented from rotating by taking the slide bar 210 as a center, and by the arrangement mode, the circle centers of the two supporting inner holes 12 are positioned in the positioning structure 100, and after the main scale 200 is adjusted to be horizontal, the situation that the main scale 200 deflects due to the rotation of the slide bar 210 in the slide hole can be avoided, the stability of the main scale 200 can be improved, and the scribing convenience is further improved. It should be understood that in other embodiments, the shapes of the sliding bar 210 and the sliding hole may be set to other shapes, such as an oval shape, a polygonal shape, or a special shape.

In another embodiment, the sliding rod 210 may be a circular rod, and a circular hole is formed in the chuck 110 and is matched with the sliding rod 210. A second fixing member (not shown) can be provided on the chuck 110, and the chuck 110 and the slide bar 210 can be selectively fixed by the second fixing member. The second fixing member may be a screw that is in threaded engagement with the chuck 110, and the screw can penetrate through the circular hole and abut against the sliding rod 210, so that the purpose of fixing the chuck 110 and the sliding rod 210 can be achieved.

Further, the end of the slide bar 210 away from the main scale 200 is provided with a limiting portion 211, and the cross-sectional area of the limiting portion 211 is larger than that of the slide bar 210. The limiting part 211 can provide a limiting effect for the chuck 110, thereby preventing the chuck 110 from falling off the sliding rod 210. In the embodiment, the straight rod is disposed at the end of the sliding rod 210, and the sliding rod 210 and the supporting rod form a T shape together, so that the straight rod can limit the chuck 110 from coming off. It should be understood that, in other embodiments, the position-limiting portion 211 may be disposed in other manners, for example, the position-limiting portion 211 is configured as a ball or a block with a diameter larger than that of the slide hole, so long as the position-limiting portion 211 cannot pass through the slide hole under the gravity of the chuck 110.

It should be noted that, in other embodiments, the slide rod 210 may be eliminated, and the chuck 110 may be directly and fixedly connected to the end of the main scale 200.

Optionally, the scoring structure 300 includes a cross-scoring rule 310, a sub-rule 320, and a cross-scoring rule 330. The cross scribing ruler 310 extends along a straight line perpendicular to the main ruler 200, and the end of the cross scribing ruler 310 is slidably coupled to the main ruler 200. The secondary scale 320 is fixedly attached to the cross-line scale 310, the secondary scale 320 being perpendicular to the main scale 200, and the secondary scale 320 being perpendicular to the cross-line scale 310. The longitudinal scribing ruler 330 is slidably connected to the sub ruler 320, and the longitudinal scribing ruler 330 is parallel to the transverse scribing ruler 310, and the longitudinal scribing ruler 330 is used for scribing on the bucket rod 11. The horizontal scribing ruler 310 can be moved to an appropriate position, the vertical scribing ruler 330 can be moved to an appropriate position relative to the sub ruler 320, and the bucket rod 11 can be scribed, so that the mounting position of the wire seat 14 can be drawn on the bucket rod 11.

Further, the lateral scribing ruler 310 is provided with a secondary ruler 320 and a longitudinal scribing ruler 330 on both sides, and the two secondary rulers 320 are symmetrically arranged with respect to the main ruler 200. By respectively arranging the auxiliary ruler 320 and the longitudinal ruler 330 on two sides of the transverse ruler 310, the installation positions of the screw bases 14 at multiple positions on two sides of the main ruler 200 can be drawn on the bucket rod 11 through the longitudinal ruler 330 when the transverse ruler 310 slides to a proper position, and the scribing efficiency can be improved, and it should be understood that in other embodiments, the auxiliary ruler 320 and the longitudinal ruler 330 can be arranged on only one side of the transverse ruler 310.

In the present embodiment, the method for marking on the bucket rod 11 by the marking ruler 10 is as follows: the bucket rod 11 is adjusted to be horizontal, and the central axis of the through hole 13 and the central axis of the two supporting inner holes 12 can be judged whether to be located on the same horizontal plane. After the bucket rod 11 is adjusted to be horizontal, the positioning structure 100 is placed into the two supporting inner holes 12, the plurality of claws 130 are abutted against the inner peripheral walls of the two supporting inner holes 12, the distances between the plurality of claws 130 and the chuck 110 are adjusted to be equal, the claws 130 and the positioning rod 120 are fixed, and at this time, the chuck 110 and the end of the main scale 200 are positioned at the center of the two supporting inner holes 12. Then, the main scale 200 is adjusted to be horizontal, the lateral scribing scale 310 is slid to a proper position, the lateral scribing scale 310 and the main scale 200 are fixed, and then the longitudinal scribing scale 330 is slid to a proper position relative to the auxiliary scale 320 for scribing, so that the positioning and scribing of the mounting position of the screw seat 14 on the arm 11 can be completed.

Note that the fixing manner of the crosscut rule 310 and the main rule 200 is the same as the fixing manner of the jaws 130 and the positioning rod 120, and the description thereof is omitted.

In summary, in the scribing ruler 10 provided in this embodiment, when the positioning structure 100 is used, the end of the main ruler 200 can be positioned at the center of the two supporting inner holes 12, when the arm 11 is in the horizontal state, the main ruler 200 can be set in the horizontal state, and at this time, the scribing structure 300 is slid along the main ruler 200, and scribing is performed at a predetermined position by the scribing structure 300, so that an accurate positioning effect can be provided for the wire seat 14. Wherein, fix a position the centre of a circle of two supporting holes 12 through location structure 100 accurately, just can make the straight line of main scale 200 place pass through the centre of a circle of two supporting holes 12, just can make the location that provides that marking off structure 300 can be accurate and be used for the installation of screw seat 14 to mark a line, improve the installation precision of screw seat 14, and then improve the installation precision of sensor.

Second embodiment

In the present embodiment, a positioning tool (not shown) is provided, which uses the scribing ruler 10 provided in the first embodiment, and can precisely scribe on the bucket rod 11 by using the two supporting inner holes 12 as references, so as to improve the mounting accuracy of the screw seat 14 and the sensor mounted on the screw seat 14.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A marking ruler is used for positioning and marking on a bucket rod by using a screw seat which takes two supporting inner holes as references, and is characterized by comprising a main ruler, a positioning structure and a marking structure;

the main ruler extends along a straight line;

the positioning structure is arranged at one end of the main scale and is used for positioning the end part of the main scale at the circle center of the two supporting inner holes;

2. The scribe rule of claim 1, wherein the positioning structure comprises a chuck, a plurality of positioning bars, and a plurality of jaws;

the chuck is arranged at the end part of the main scale;

the positioning rods are arranged on the outer circumference of the chuck at equal intervals;

3. The scribe rule of claim 2 wherein the jaw extends in a straight line and the jaw is perpendicular to the locating bar.

4. The scribing ruler according to claim 2, wherein the outer side of the clamping jaw is provided with a first abutting portion, the first abutting portion is used for abutting against the inner peripheral walls of the two supporting inner holes, and the cross sectional area of the first abutting portion is gradually reduced along the direction away from the clamping jaw.

5. The scribing ruler according to claim 4, wherein a second abutting portion is arranged on the inner side of the clamping jaw, and the second abutting portion and the first abutting portion are symmetrically arranged relative to the clamping jaw.

6. A scribe rule according to claim 1 characterized in that the ends of the main rule are provided with slide bars perpendicular to the main rule, the positioning structure being slidably connected to the slide bars.

7. A marking ruler according to claim 6 wherein the end of the slide bar remote from the main scale is provided with a stop portion having a cross-sectional area greater than the cross-sectional area of the slide bar.

8. The scoring ruler of claim 1, wherein the scoring structure comprises a cross-scoring ruler, a sub-ruler, and a longitudinal scoring ruler;

the transverse marking ruler extends along a straight line perpendicular to the main ruler, and the end part of the transverse marking ruler is connected with the main ruler in a sliding mode;

the auxiliary ruler is fixedly connected with the transverse marking ruler, the auxiliary ruler is perpendicular to the main ruler, and the auxiliary ruler is perpendicular to the transverse marking ruler;

9. A scribe rule according to claim 8 characterized in that the secondary rule and the longitudinal rule are provided on both sides of the transverse rule, both secondary rules being symmetrically arranged with respect to the main rule.

10. A positioning tool, characterized by comprising a marking ruler according to any one of claims 1-9.