CN116399208B

CN116399208B - Center distance detection device for flange plate

Info

Publication number: CN116399208B
Application number: CN202310671818.5A
Authority: CN
Inventors: 陈章; 李鹏; 唐俊焘
Original assignee: Changzhou Changwu Xinshe Petrochemical Fittings Co ltd
Current assignee: Changzhou Changwu Xinshe Petrochemical Fittings Co ltd
Priority date: 2023-06-08
Filing date: 2023-06-08
Publication date: 2023-08-22
Anticipated expiration: 2043-06-08
Also published as: CN116399208A

Abstract

The application relates to the technical field of inspection tools, in particular to a center distance detection device for a flange, which is used for detecting the flange, and comprises a fixed assembly, a positioning rotating assembly and a measuring assembly; the fixed component is used for fixing the flange plate, and the positioning rotating component is arranged on the fixed component and centers the flange plate; the measuring assembly comprises two levels which are rotatably arranged on the positioning rotating assembly, the position states of the two levels can be switched between parallel and intersecting, a sliding assembly is slidably arranged on each level, the sliding assembly comprises a positioning conical head and a sliding column, the positioning conical head is used for being inserted into a bolt hole on the flange, the sliding column is provided with a measuring device, and the detection part of the measuring device is abutted to the outside of the flange; the sliding column is slidably arranged on the level bar, and the position state of the measuring device on the level bar can be switched between moving and fixing.

Description

Center distance detection device for flange plate

Technical Field

The application relates to the technical field of inspection tools, in particular to a center distance detection device for a flange plate.

Background

The flange plate is also called a flange, is a disc-shaped part and is usually used in pairs in the mechanical industry, the flange plate is provided with uniform distribution holes, a worker can place the flange plate at a pipeline interface, a sealing gasket is added between the two flange plates, and then bolts penetrate through the uniform distribution holes to fasten, so that the interconnection of two pipelines is realized; in practical operation, different flanges are required to be applied according to the use occasions of different pipelines, and meanwhile, the flanges used in different occasions have different thicknesses and are matched with different bolts. The flange valve and flange plate produced by each manufacturer are different, so that the outer diameter and the inner diameter of the flange are not identical, and the flange plate is selected according to the center distance of the bolt hole under the condition. The flanges can be connected only by the same hole distance and consistent angle, so that even if the outer diameters of the pipelines are different, the flanges can be converted through fittings such as big and small heads. The center distance of the bolt hole is the straight line distance passing through the center of the flange. Abbreviated as pitch. The common hole pitch detection device directly measures by adopting a vernier caliper, has the problems of low measurement accuracy, non-visual measurement results and the like, and also has the advantages that a fixed die is adopted for measurement, but only a flange with a fixed size can be measured, meanwhile, the angle between bolt holes can not be measured, the measurement range is small, and the operation is inconvenient.

In order to solve the technical problems, chinese patent CN108278959a discloses a method for rapidly measuring the angle of a flange hole, firstly, manufacturing an angle scale with measurement scales in a size smaller than the distance L between flange holes according to the radius of the flange plate, manufacturing a main angle scale and an auxiliary angle scale which are rotationally and cross-connected around the axis of a central hole O of a rotating shaft on the angle scale, manufacturing L-shaped notches which are symmetrical in opposite directions on the same side of the main angle scale and the auxiliary angle scale in the radial direction, and forming a shear difference rotating pair by connecting an extending connecting line of edges of the L-shaped notches on a straight line with the center of a Kong Jizhu plug locating hole on the opposite end through the central hole O; two Kong Jizhu plug bolts with the same shape and size are respectively inserted into the flange holes to be detected through Kong Jizhu plug positioning holes, and the angle value between the auxiliary angle square and the main angle square is read out, so that the included angle between the two flange face positioning holes to be detected is obtained. The device can quickly and accurately detect the uniformly distributed hole angles of the flange parts without being limited by sites. However, the patent can only measure flanges with specific dimensions, can only measure included angle between positioning holes, cannot detect other parameters, and has large use limitation.

Therefore, the center distance detection device for the flange plate can detect various parameters of flanges with different diameters, reduces detection limitation, and ensures detection accuracy and convenience to be achieved by those skilled in the art.

Disclosure of Invention

The application aims to provide a center distance detection device for a flange plate, which solves the technical problems of small detection range, low precision and inconvenient operation of a device for detecting the hole distance of a flange in the prior art.

The technical scheme adopted for solving the technical problems is as follows: the center distance detection device for the flange plate is used for detecting the flange plate and comprises a fixed assembly, a positioning and rotating assembly and a measuring assembly; the fixed component is used for fixing the flange plate, and the positioning rotating component is arranged on the fixed component and centers the flange plate; the measuring assembly comprises two levels which are rotatably arranged on the positioning rotating assembly, the position states of the two levels can be switched between parallel and intersecting, a sliding assembly is slidably arranged on each level, the sliding assembly comprises a positioning conical head and a sliding column, the positioning conical head is used for being inserted into a bolt hole on the flange, the sliding column is provided with a measuring device, and the detection part of the measuring device is abutted to the outside of the flange; the sliding column is slidably arranged on the level bar, and the measuring device is slidably arranged on the level bar along with the sliding column; the sliding column is internally connected with a fine adjustment screw rod in a threaded manner, the fine adjustment screw rod penetrates through the sliding column along the axial direction of the sliding column, the positioning conical head is sleeved at one end of the fine adjustment screw rod, and the positioning conical head is relatively fixed with the fine adjustment screw rod.

Further, one end, close to the positioning conical head, of the fine adjustment screw is connected with a second locking nut in a threaded mode, and the end face of the second locking nut abuts against the end face of the positioning conical head; the sliding column is connected with a first lock nut in a threaded mode, and the first lock nut is abutted to the side face of the level bar.

Further, a conical surface is formed on the positioning conical head, the positioning conical head moves on the fine adjustment screw along the axis direction of the flange plate, the positioning conical head is connected in the bolt hole in a matched mode, and the conical surface is abutted against the inner wall of the bolt hole.

Further, a horizontal chute and a vertical chute are arranged in the horizontal ruler, the horizontal chute penetrates through the wall body of the horizontal ruler, and the vertical chute is arranged on two opposite side walls of the horizontal chute; the horizontal sliding groove and the vertical sliding groove are arranged in a cross shape.

Further, a sliding block is fixedly connected to the outer part of the sliding column, an extension boss is arranged on the sliding block, limit columns are symmetrically arranged on the extension boss, and the measuring device is arranged on the extension boss; the sliding column is slidably arranged in the horizontal sliding groove, the sliding block is slidably arranged in the vertical sliding groove, and the limiting column extends into the vertical sliding groove and abuts against the inner wall of the vertical sliding groove.

Further, the positioning rotating assembly comprises a movable support and a rotating support, the two level bars are rotatably arranged on the movable support, the movable support is slidable along the axial direction of the flange plate relative to the fixed assembly, the rotating support is rotatable relative to the movable support, and a plurality of clamping claws capable of synchronously sliding along the radial direction are arranged on the rotating support and are used for propping against the central hole of the flange plate.

Further, a connector is arranged at the end part of the movable bracket, and the rotary bracket is rotatably connected to the connector; the level bar is rotatably sleeved on the connecting head, and the level bar rotates around the axis of the connecting head.

Further, the rotary support is circular structure, is equipped with the drive recess on the rotary support terminal surface, and the drive recess radially sets up along the rotary support, the jack catch inlay card is connected in the drive recess and along drive recess length direction slip setting.

Further, the fixed component comprises a mounting bracket and a control bracket, a mounting groove is formed in the mounting bracket, and the flange plate is connected in the mounting groove in a matching manner.

Further, the control support is fixedly connected to one side of the mounting support, a sliding groove is formed in the upper plane of the control support, the sliding groove penetrates through the wall body of the control support and extends into the wall body of the mounting support, and the movable support is slidably clamped and arranged in the sliding groove.

The beneficial effects of the application are as follows: the application adopts the positioning rotating assembly to position and clamp the flange plate to be detected, realizes the accurate positioning of the circle center, ensures the detection accuracy, rotatably sets the level bar around the circle center of the flange plate, realizes the detection of a plurality of bolt holes on the flange plate, and slidably sets the sliding assembly in the level bar, wherein the sliding assembly is matched and connected in the bolt holes, and the two sliding assemblies are arranged in the opposite bolt holes, thus realizing the detection of the center distance of the flange plate.

Drawings

Fig. 1 is a perspective view of a center distance detection device for a flange plate according to the present application.

Fig. 2 is another perspective view of the center distance detection device for a flange plate according to the present application.

Fig. 3 is a front view of the center distance detection device for a flange according to the present application.

Fig. 4 is a cross-sectional view taken along the A-A line in fig. 3.

Fig. 5 is a cross-sectional view taken along the B-B line in fig. 3.

Fig. 6 is a cross-sectional view taken along the C-C line in fig. 3.

Fig. 7 is an exploded view of the center distance detection device for a flange plate according to the present application.

Fig. 8 is a perspective view of a slide module in the center distance detection device for a flange plate according to the present application.

Fig. 9 is an exploded view of fig. 8.

Fig. 10 is an enlarged schematic view of the portion a in fig. 1.

Fig. 11 is an enlarged schematic view of the portion B in fig. 4.

Fig. 12 is a front view (intersecting state) of the center distance detection device for a flange plate according to the present application.

Fig. 13 is a perspective view of the center distance detection device for a flange plate according to the present application (measurement device fixed state).

Fig. 14 is a schematic view of a partial explosion of fig. 11.

Fig. 15 is an enlarged schematic view of the portion C in fig. 14.

Fig. 16 is a perspective view of the center distance detection device for a flange plate according to the present application (measurement device moving state).

The components in the drawings are marked as follows: 10. a fixing assembly; 11. a mounting bracket; 12. a control bracket; 13. a first driving motor; 14. a mounting groove; 15. a sliding groove; 16. a first screw; 17. a first slider; 18. a butt handle; 19. an abutment; 20. positioning the rotating assembly; 21. a movable support; 22. a rotating bracket; 23. a rotating electric machine; 24. a second driving motor; 25. a second screw; 26. a driving groove; 27. a second slider; 28. a claw; 29. a connector; 30. a measurement assembly; 31. a level bar; 311. a horizontal chute; 312. a vertical chute; 313. a scale; 314. an index plate; 32. a sliding assembly; 33. a sliding block; 331. an extension boss; 332. a limit column; 34. fine tuning the screw; 341. a rotation stopping plane; 342. a first thread segment; 343. a second thread segment; 35. a sliding column; 351. a third thread segment; 352. marking the bulge; 36. a first lock nut; 37. positioning the conical head; 371. a conical surface; 38. a second lock nut; 39. a fine tuning handle; 40. a flange plate; 41. bolt holes; 42. a mounting block; 43. a measuring device; 44. and (5) connecting a block.

Detailed Description

The present application will now be described in detail with reference to the accompanying drawings. The figure is a simplified schematic diagram illustrating the basic structure of the application only by way of illustration, and therefore it shows only the constitution related to the application.

Referring to fig. 1, 2 and 3, the present application provides a center distance detection device for a flange, which is used for detecting a flange 40, wherein a plurality of bolt holes 41 are uniformly formed in the flange 40, the center distance detection device comprises a fixing component 10, a positioning rotating component 20 and a measuring component 30, the positioning rotating component 20 is arranged on the fixing component 10, the measuring component 30 is rotatably arranged on the positioning rotating component 20, the flange 40 is mounted on the positioning rotating component 20, the flange 40 is centrally positioned by using the positioning rotating component 20, the measuring precision is ensured, the flange 40 is fixedly clamped by using the fixing component 10, the mounting stability is ensured, the distance between the bolt holes 41 on the flange 40 is measured by using the measuring component 30, and the measurement of the center distance between the bolt holes 41 is realized.

Further, referring to fig. 2, 5, 6 and 7, the fixing assembly 10 includes a mounting bracket 11 and a control bracket 12, a mounting groove 14 is provided on the mounting bracket 11, the flange 40 is cooperatively connected in the mounting groove 14, a receiving groove is provided on a groove side wall of the mounting groove 14, a plurality of abutting pieces 19 are provided in the receiving groove, the abutting pieces 19 abut against end surfaces of the flange 40, an abutting handle 18 is further provided on the mounting bracket 11, the abutting handle 18 penetrates through a wall body of the mounting bracket 11 and extends into the mounting groove 14, the abutting handle 18 is in threaded connection in the mounting bracket 11, and an end portion of the abutting handle 18 abuts against the other end surface of the flange 40. Preferably, the abutment handle 18 is arranged opposite the abutment 19.

In this embodiment, the abutment 19 includes, but is not limited to, a ball plunger, which is a common ball plunger in the market, and the specific structure is not described herein. When in use, the flange 40 is abutted against the ball head of the ball head plunger, and then the abutting handle 18 is utilized to abut against and push the flange 40, so that the flange 40 presses the ball head of the ball head plunger and abuts against the side wall of the mounting groove 14, thereby ensuring that the flange 40 is uniformly stressed, keeps a vertical state and prevents tilting.

In another embodiment, the abutting piece 19 is a rubber gasket, when in use, the flange 40 abuts against the rubber gasket, and then the abutting handle 18 abuts against and pushes the flange 40, so that the flange 40 compresses the rubber gasket, the end face of the flange 40 is further prevented from being worn, and the stability in the measuring process is improved.

Further, the control bracket 12 is fixedly connected to one side of the mounting bracket 11 far away from the abutting handle 18, a sliding groove 15 is formed in the upper plane of the control bracket 12, and the sliding groove 15 penetrates through the wall of the control bracket 12 and extends into the wall of the mounting bracket 11. The positioning and rotating assembly 20 is slidably arranged in the sliding groove 15; the side of the control bracket 12 is provided with a first driving motor 13, and the first driving motor 13 is used for driving the positioning rotating assembly 20 to move.

Further, the positioning and rotating assembly 20 includes a moving bracket 21 and a rotating bracket 22, the moving bracket 21 has a square strip structure, and the bottom end of the moving bracket 21 is slidably connected in the sliding groove 15 in a clamping manner. When in use, the movable support 21 can slide along the axial direction of the flange 40 relative to the fixed assembly 10, and the rotary support 22 can rotate relative to the movable support 21, so that the dynamic control of the flange 40 is realized, and the parameter collection range is improved.

Specifically, the first driving motor 13 is detachably connected to the control bracket 12, a first screw 16 is fixedly connected to a rotating shaft of the first driving motor 13, a first sliding block 17 is arranged on the bottom surface of the moving bracket 21, and the first sliding block 17 is slidably and in clamping connection with the sliding groove 15, so that the first sliding block 17 can slide relative to the sliding groove 15 and cannot be separated from the sliding groove 15, and the first screw 16 extends into the sliding groove 15 and is in threaded connection with the first sliding block 17. When the positioning rotary assembly 20 is used, the first driving motor 13 is started, the first screw 16 rotates, and simultaneously the first sliding block 17 is meshed and driven, so that the movable support 21 moves along the sliding groove 15, and the movement control of the positioning rotary assembly 20 is realized.

It can be appreciated that the first slider 17 is provided with a dovetail, the sliding groove 15 is provided with a dovetail groove, the dovetail is cooperatively connected in the dovetail groove, and when the moving bracket 21 moves, the dovetail slides along the dovetail groove, so as to realize stable clamping connection.

Further, a connector 29 is provided at an end of the movable support 21 far away from the first slider 17, the rotary support 22 is rotatably connected to the connector 29, a plurality of claws 28 are uniformly provided on the rotary support 22, and the claws 28 abut against the central hole of the flange 40. The measuring assembly 30 is rotatably mounted on the connector 29.

Specifically, a rotating motor 23 is disposed on the moving bracket 21 and located in the connector 29, an output shaft of the rotating motor 23 penetrates through a wall body of the connector 29, and the rotating bracket 22 is fixedly connected to the output shaft of the rotating motor 23; the rotary support 22 is of a circular structure, a plurality of driving grooves 26 are formed in the end face of the rotary support 22, the driving grooves 26 are of rectangular structures, the driving grooves 26 are formed in the radial direction of the rotary support 22, and the clamping claws 28 are connected in the driving grooves 26 in a clamping mode and are arranged in a sliding mode in the length direction of the driving grooves 26. When the rotary motor 23 is started in use, the rotary support 22 rotates along with the rotary motor, and simultaneously, the plurality of clamping claws 28 are synchronously controlled to slide, so that the clamping claws 28 are abutted against the central hole of the flange 40 and clamp the flange 40, and further, positioning and clamping are realized. Preferably, the jaws 28 are provided with four.

In this embodiment, the driving groove 26 is detachably connected with a second driving motor 24, an output shaft of the second driving motor 24 is fixedly connected with a second screw rod 25, a second slider 27 is arranged on the bottom surface of the claw 28, and the second screw rod 25 extends into the driving groove 26 and is in threaded connection with the second slider 27; in use, the second drive motor 24 is started, the second screw 25 rotates, and simultaneously the second slider 27 is driven in a meshed manner, so that the claw 28 moves along the driving groove 26, stable movement control of the claw 28 is realized, and falling is prevented.

It can be understood that the second driving motors 24 are provided with a plurality of second driving motors 24 and are correspondingly arranged in the driving grooves 26, one second driving motor 24 is installed in one driving groove 26, and the plurality of second driving motors 24 are mutually and electrically connected, so that when the device is used, the plurality of second driving motors 24 can be started or closed synchronously, further synchronous operation of the clamping jaws 28 is guaranteed, stability of clamping is realized, positioning accuracy of center holes of the flange 40 in the working process is guaranteed, accuracy of center distance measurement is guaranteed, meanwhile, the device can be adjusted adaptively according to the center holes with different sizes, and the application range of the device is improved.

In another embodiment, the claw 28 is slidably disposed on the rotating bracket 22 by means of an air cylinder, thereby improving the interlocking of the claw 28.

Referring to fig. 2, 4 and 7-12, the measuring assembly 30 includes a level bar 31 and a sliding assembly 32, the level bar 31 is provided with two sets of rotatable sleeves on the connecting head 29, and the level bar 31 rotates around the axis of the connecting head 29. One slide assembly 32 is slidably arranged on one level bar 31, the other slide assembly 32 is slidably arranged on the other level bar 31, and the slide assemblies 32 are matched and connected in the bolt holes 41. In use, the position of the two levels 31 can be switched between parallel and intersecting.

In this embodiment, two sliding components 32 are respectively disposed on two opposite sides of the connector 29, one sliding component 32 is connected in a bolt hole 41 in a matching manner, the other sliding component 32 is connected in another bolt hole 41 in a matching manner, so that two leveling bars 31 are disposed in parallel, specifically, an included angle between the two leveling bars 31 is 180 °, and therefore, by measuring a distance between the two sliding components 32 on the leveling bars 31, the measurement of a pitch of the bolt hole 41 is further realized.

In another embodiment, two levels 31 are disposed to intersect (see fig. 12), and the angle between the two levels 31 is between 0 ° and 180 °. One sliding component 32 is connected in one bolt hole 41 in a matching way, and the other sliding component 32 is connected in the other bolt hole 41 in a matching way, so that the angle between the two levels 31 is measured, namely the angle between the bolt holes 41 is measured.

Further, a horizontal chute 311 and a vertical chute 312 are provided in the level bar 31, the horizontal chute 311 penetrates through the wall of the level bar 31, and the vertical chute 312 is provided on two opposite side walls of the horizontal chute 311. Preferably, the horizontal chute 311 and the vertical chute 312 are arranged in a cross-shaped manner.

Further, the sliding assembly 32 includes a sliding column 35, a sliding block 33 is fixedly connected to the outside of the sliding column 35, the sliding column 35 is slidably disposed in the horizontal sliding slot 311, and the sliding block 33 is slidably disposed in the vertical sliding slot 312.

In this embodiment, the scale 313 is disposed on the side of the level bar 31, a third threaded section 351 is disposed on the outer wall of the sliding column 35 at one side of the sliding block 33, a marking protrusion 352 is disposed on the outer wall of the sliding column 35 at the other side of the sliding block 33, and the marking protrusion 352 faces the scale 313. The sliding column 35 is in threaded connection with a first locking nut 36 at the third threaded section 351, and the first locking nut 36 abuts against the side surface of the level bar 31.

In use, after the sliding column 35 is moved to a designated position, the first lock nut 36 is rotated to enable the first lock nut 36 to abut against the side surface of the level bar 31, and then the sliding column 35 is fixed into the level bar 31, so that the measurement accuracy is maintained. Specific parameters are obtained according to the scale 313 pointed by the marking protrusions 352, and the specific parameters on the two levels 31 are added to obtain the center distance of the flange 40.

In another embodiment, the connector 29 is further sleeved with an index plate 314, the index plate 314 is provided with an index, and meanwhile, the two levels 31 are arranged in an intersecting manner (see fig. 12), when the connector is in use, an included angle is formed between the two levels 31, the center line of the levels 31 is used as a reference, and the specific degree of the included angle between the two levels 31 is calculated according to the index plate 314, so that the angle between the bolt holes 41 can be obtained.

According to the application, the measurement of the center distance of the flange 40 and the angle between the bolt holes 41 is realized through the two level bars 31 capable of rotating mutually, when the two level bars 31 are arranged in parallel, the center distance can be obtained according to the sum of the addition of scales 313 on the level bars 31, and when the two level bars 31 are arranged in an intersecting manner, the angle between the bolt holes 41 can be calculated according to the dividing plate 314, so that the calculation of various parameters is realized, the application range is increased, and the measurement accuracy is ensured.

Further, the sliding column 35 is internally and threadedly connected with a fine adjustment screw 34, and the fine adjustment screw 34 axially penetrates through the sliding column 35 along the sliding column 35; preferably, the fine adjustment screw 34 is arranged coaxially with the sliding column 35. One end of the fine tuning screw 34 is sequentially sleeved with a positioning conical head 37 and a second locking nut 38, the positioning conical head 37 and the fine tuning screw 34 are relatively fixed, and the second locking nut 38 is in threaded connection with the fine tuning screw 34 and abuts against the end face of the positioning conical head 37. Preferably, the positioning cone 37 has an outer diameter greater than the outer diameter of the second lock nut 38.

Further, the fine adjustment screw 34 is provided with a rotation stopping plane 341, a first thread section 342 and a second thread section 343, the positioning conical head 37 is connected to the rotation stopping plane 341 in a matching manner and abuts against the side wall of the rotation stopping plane 341, the second locking nut 38 is connected to the second thread section 343 in a threaded manner, and the sliding column 35 is connected to the first thread section 342 in a threaded manner.

Specifically, the positioning cone 37 is provided with a mating hole 372, the contour of the mating hole 372 is consistent with the contour of the rotation stopping plane 341, the end of the fine adjustment screw 34 is connected in the mating hole 372 in a plugging manner, and the rotation stopping plane 341 is matched with the mating hole 372, so that the positioning cone 37 and the fine adjustment screw 34 are relatively fixed, the use stability is further ensured, and when the fine adjustment screw 34 stops rotating, the positioning cone 37 rotates.

When the device is used, the positioning conical head 37 is sleeved on the fine adjustment screw 34, the second locking nut 38 is in threaded connection with the fine adjustment screw 34 and compresses the positioning conical head 37, the positioning conical head 37 is fixedly connected with the fine adjustment screw 34 through the second locking nut 38, measurement stability is guaranteed, and replacement is facilitated.

Further, a conical surface 371 is formed on the positioning conical head 37, the positioning conical head 37 is connected in the bolt hole 41 in a matching mode, and the conical surface 371 abuts against the inner wall of the bolt hole 41. The end of the fine tuning screw 34 remote from the positioning cone 37 is detachably connected with a fine tuning handle 39.

When the positioning conical head 37 is used, the positioning conical head 37 is fixedly connected to the fine adjustment screw 34 by the second lock nut 38, then the fine adjustment handle 39 is rotated, the fine adjustment screw 34 rotates in the sliding column 35, the positioning conical head 37 is driven to rotate and move along the axis direction of the fine adjustment screw 34 by the fine adjustment screw 34, finally the positioning conical head 37 is matched into the bolt hole 41, the conical surface 371 is abutted to the inner wall of the bolt hole 41, the positioning accuracy is ensured, after the positioning conical head 37 is positioned, the first lock nut 36 is rotated, the sliding column 35 is fixedly connected to the horizontal ruler 31, the scale 313 on the horizontal ruler 31 is read according to the pointing direction of the marking protrusion 352, and the detection of the center distance of the flange 40 is completed. After the measurement is completed, the fine adjustment handle 39 is reversely rotated, the positioning cone 37 is reversely moved along the axis direction of the fine adjustment screw 34 in a following manner, and the level bar 31 is rotated to detect other bolt holes 41.

Referring to fig. 13, 14, 15 and 16, the sliding block 33 is provided with an extending boss 331, the extending boss 331 is symmetrically provided with a limiting post 332, the limiting post 332 extends into the vertical sliding slot 312 and abuts against the inner wall of the vertical sliding slot 312, and the limiting post 332 is used to prevent the sliding post 35 from rotating, so as to ensure the stability in use.

Further, one side of the extending boss 331 is detachably connected with a mounting block 42, the other side of the extending boss 331 is detachably connected with a connecting block 44, the connecting block 44 is L-shaped, and the connecting block 44 is used for fixedly connecting the sliding block 33 and the mounting block 42 to the end of the level bar 31 through threads.

Further, a measuring device 43 is mounted on the end face of the mounting block 42, and a detection part of the measuring device 43 abuts against the outside of the flange 40; the measuring device 43 includes, but is not limited to, a lever meter. The measuring device 43 is fixedly mounted with respect to the sliding column 35.

It will be appreciated that when mounting the measuring device 43 to the sliding column 35, a portion of the sliding assembly 32 may be removed, such as the first lock nut 36, the locating cone 37, the second lock nut 38, etc., to prevent interference. The trimming screw 34 and the trimming handle 39 are not needed, so that the weight can be reduced after the trimming screw is disassembled, and the use stability is ensured.

The present application uses the detachably connected connection block 44 to switch the connection state of the measuring device 43 on the level bar 31 between moving and fixing.

In this embodiment, one surface of the connection block 44 is mounted on the end surface of the level bar 31 by using a fastener such as a bolt or a screw, and the other surface of the connection block 44 is mounted on the extension boss 331 by using a fastener such as a bolt or a screw, while a part of the fastener such as a bolt or a screw penetrates through the extension boss 331 and is screwed into the mounting block 42, so that the mounting block 42 is screwed onto the extension boss 331, while the sliding block 33 is screwed onto the end of the level bar 31, the sliding column 35, the mounting block 42 and the level bar 31 are in a relatively fixed state, and further the measuring device 43 is in a fixed state on the level bar 31.

Specifically, the measuring device 43 is used for measuring the outer circular surface of the flange 40 and detecting roundness, concentricity and other data, and the measuring device 43 adopts a lever meter dial gauge, and a measuring needle of the lever meter dial gauge abuts against the outer circular surface of the flange 40; when the measuring instrument is used, the horizontal ruler 31 is rotated, the sliding block 33 and the mounting block 42 rotate along with the rotation and drive the measuring device 43 to rotate along the side face of the flange 40, and the measuring needle of the dial indicator of the lever meter moves around the outer circle of the flange 40, so that the roundness and concentricity of the flange 40 are measured, the detection range of the measuring instrument is improved, and meanwhile, the stability in the mounting and using processes is ensured.

In another embodiment, the mounting block 42 is directly mounted to the extending boss 331 of the sliding block 33, and the sliding block 33 is slidably disposed in the level bar 31, and when the sliding column 35 is manually driven to move, the measuring device 43 moves along the level bar 31 slidably along with the sliding column 35, so that the measuring device 43 is in a moving state on the level bar 31.

Specifically, the measuring device 43 is used to measure the end surface of the flange 40 for detecting flatness and other data, the measuring device 43 is a flatness measuring device commonly used in the market, the detecting portion of the flatness measuring device abuts against the end surface of the flange 40, at this time, the connecting block 44 and the fastening piece such as the bolt or the screw for screw thread fixing connection on the connecting block 44 need to be removed, so that the sliding block 33 is slidably disposed in the level bar 31, then one end of the mounting block 42 is connected to the horizontal chute 311 in a plugging manner, and then the mounting block 42 is fixedly connected to the extending boss 331 by using the fastening piece such as the bolt or the screw thread, at this time, the mounting block 42 is slidably disposed in the level bar 31 and can move along the horizontal chute 311, thereby realizing the detection of the end surface of the flange 40. When the flatness measuring instrument is used, the level bar 31 is rotated, the sliding block 33 and the mounting block 42 rotate along with the rotation and drive the measuring device 43 to rotate on the end face of the flange 40, the sliding column 35 is manually moved, and the flatness measuring instrument moves on the end face of the flange 40, so that the flatness and other data of the flange 40 are measured, and the detection range of the flatness measuring instrument is improved.

It will be appreciated that the measuring device 43 can also measure the bolt holes 41 on the flange 40, including but not limited to measuring the roundness, angle, depth, etc. of the bolt holes 41, thereby improving the detection range of the present application. Compared with a single measurement mode in the prior art, the application realizes the integration of multiple detection modes, can realize the collection of multiple data by adopting a simple operation mode, and has excellent use effect.

By arranging two mounting modes for the measuring device 43, the application realizes the collection and detection of various data such as roundness, concentricity, flatness and the like of the flange 40, improves the detection range and realizes more purposes. The measuring device 43 is mounted on the sliding component 32, and the sliding component 32 is used for measuring the center distance of the flange 40, so that the center distance of the bolt holes 41 of the flange 40 can be measured during detection, and the roundness, concentricity, flatness and other data of other parts of the flange 40 can be measured, so that the device is suitable for complex flange detection; in order to ensure the accuracy of the data, the application can be provided with two measuring devices 43 for synchronous detection, thereby greatly improving the accuracy of measurement.

The specific operation mode of the application is as follows, step one: the flange 40 is placed in the mounting bracket 11, the first driving motor 13 is started, the rotating bracket 22 is horizontally moved, the clamping jaw 28 is moved into the flange 40, the second driving motor 24 is driven, the clamping jaw 28 abuts against the inner diameter of the flange 40, and the circle center positioning is completed.

Step two: the abutment handle 18 is turned so that the end of the abutment handle 18 abuts against the end face of the mounting bracket 11. The perpendicularity of the flange 40 is adjusted. And (5) finishing positioning and installation.

Step three: moving the sliding assembly 32 to the bolt hole 41, rotating the fine adjustment handle 39, and moving the positioning conical head 37 along the axis direction of the fine adjustment screw 34 along with the rotation, and finally matching the positioning conical head 37 into the bolt hole 41, so that the conical surface 371 is abutted to the inner wall of the bolt hole 41, and positioning the bolt hole 41 is completed.

Step four: the first lock nut 36 is turned to fixedly connect the sliding column 35 to the level bars 31, the scales 313 on the level bars 31 are read out according to the directions of the marking protrusions 352, the two level bars 31 are horizontally arranged, and the scales are added to obtain the center distance of the flange 40.

Step five: and removing part of the sliding assembly 32, fixedly connecting the sliding column 35 to the end part of the level bar 31 by utilizing the connecting block 44, fixedly connecting the mounting block 42 to the sliding column 35 by utilizing the screw thread, and mounting the measuring device 43 to measure the roundness of the outer circular surface of the flange 40 so as to finish the collection of other parameters.

The application adopts the positioning rotating assembly 20 to position and clamp the flange 40 to be detected, realizes the accurate positioning of the circle center, ensures the detection accuracy, rotatably sets the level bar 31 around the circle center of the flange 40, realizes the detection of a plurality of bolt holes 41 on the flange 40, slidably sets the sliding assemblies 32 in the level bar 31, the sliding assemblies 32 are matched and connected in the bolt holes 41, and the two sliding assemblies 32 are arranged in the opposite bolt holes 41, thus realizing the detection of the center distance of the flange 40.

It will be understood that the application has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the application. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the application without departing from the essential scope thereof. Therefore, it is intended that the application not be limited to the particular embodiment disclosed, but that the application will include all embodiments falling within the scope of the appended claims.

Claims

1. The center distance detection device for the flange is used for detecting the flange (40), and is characterized by comprising a fixed assembly (10), a positioning and rotating assembly (20) and a measuring assembly (30); the fixing assembly (10) is used for fixing the flange plate (40), and the positioning rotating assembly (20) is arranged on the fixing assembly (10) and is used for centering the flange plate (40); the measuring assembly (30) comprises two level bars (31) rotatably arranged on the positioning rotating assembly (20), the position states of the two level bars (31) can be switched between parallel and intersecting, a sliding assembly (32) is slidably arranged on each level bar (31), the sliding assembly (32) comprises a positioning conical head (37) and a sliding column (35), the positioning conical head (37) is used for being inserted into a bolt hole (41) in the flange plate (40), the sliding column (35) is provided with a measuring device (43), and the detection part of the measuring device (43) is abutted to the outside of the flange plate (40); the sliding column (35) is slidably arranged on the level bar (31), and the measuring device (43) is slidably arranged on the level bar (31) along with the sliding column (35); the sliding column (35) is internally connected with a fine adjustment screw rod (34) in a threaded manner, the fine adjustment screw rod (34) axially penetrates through the sliding column (35) along the sliding column (35), the positioning conical head (37) is sleeved at one end of the fine adjustment screw rod (34), and the positioning conical head (37) and the fine adjustment screw rod (34) are relatively fixed; the positioning rotating assembly (20) comprises a movable support (21) and a rotating support (22), wherein two level bars (31) are rotatably arranged on the movable support (21), the movable support (21) is slidable along the axial direction of the flange plate (40) relative to the fixed assembly (10), the rotating support (22) is rotatable relative to the movable support (21), a plurality of clamping claws (28) capable of synchronously sliding along the radial direction are arranged on the rotating support (22), and the clamping claws (28) are used for propping against the central hole of the flange plate (40).

2. The center distance detection device for the flange plate according to claim 1, wherein a second lock nut (38) is connected to one end of the fine adjustment screw (34) close to the positioning conical head (37) in a threaded manner, and the end face of the second lock nut (38) abuts against the end face of the positioning conical head (37); the sliding column (35) is connected with a first locking nut (36) in a threaded mode, and the first locking nut (36) abuts against the side face of the horizontal ruler (31).

3. The center distance detection device for a flange according to claim 2, wherein a tapered surface (371) is formed on the positioning tapered head (37), the positioning tapered head (37) moves on the fine adjustment screw (34) along the axis direction of the flange (40), the positioning tapered head (37) is connected in the bolt hole (41) in a matching manner, and the tapered surface (371) abuts against the inner wall of the bolt hole (41).

4. The center distance detection device for the flange plate according to claim 1, wherein a horizontal chute (311) and a vertical chute (312) are arranged in the horizontal ruler (31), the horizontal chute (311) penetrates through the wall body of the horizontal ruler (31), and the vertical chute (312) is arranged on two opposite side walls of the horizontal chute (311); the horizontal sliding chute (311) and the vertical sliding chute (312) are arranged in a cross shape.

5. The center distance detection device for the flange plate according to claim 4, wherein a sliding block (33) is fixedly connected to the outside of the sliding column (35), an extending boss (331) is arranged on the sliding block (33), limit columns (332) are symmetrically arranged on the extending boss (331), and the measuring device (43) is installed on the extending boss (331); the sliding column (35) is slidably arranged in the horizontal sliding groove (311), the sliding block (33) is slidably arranged in the vertical sliding groove (312), and the limiting column (332) extends into the vertical sliding groove (312) and abuts against the inner wall of the vertical sliding groove (312).

6. The center distance detection device for a flange plate according to claim 1, wherein a connector (29) is provided on an end portion of the movable bracket (21), and the rotary bracket (22) is rotatably connected to the connector (29); the level bar (31) is rotatably sleeved on the connector (29), and the level bar (31) rotates around the axis of the connector (29).

7. The center distance detection device for the flange plate according to claim 1, wherein the rotary support (22) is of a circular structure, a driving groove (26) is formed in the end face of the rotary support (22), the driving groove (26) is formed in the radial direction of the rotary support (22), and the clamping jaw (28) is connected in the driving groove (26) in a clamping manner and is arranged in a sliding manner along the length direction of the driving groove (26).

8. The center distance detection device for the flange plate according to claim 1, wherein the fixing assembly (10) comprises a mounting bracket (11) and a control bracket (12), a mounting groove (14) is formed in the mounting bracket (11), and the flange plate (40) is connected in the mounting groove (14) in a matching manner.

9. The center distance detection device for the flange plate according to claim 8, wherein the control bracket (12) is fixedly connected to one side of the mounting bracket (11), a sliding groove (15) is formed in the upper plane of the control bracket (12), the sliding groove (15) penetrates through the wall body of the control bracket (12) and extends into the wall body of the mounting bracket (11), and the movable bracket (21) is slidably and in a clamping manner in the sliding groove (15).