CN210321546U

CN210321546U - Circular surface inner diameter measuring instrument

Info

Publication number: CN210321546U
Application number: CN201921178580.8U
Authority: CN
Inventors: 张阳
Original assignee: Nanjing Huaxuda Precision Machinery Co Ltd
Current assignee: Nanjing Huaxuda Precision Machinery Co Ltd
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2020-04-14
Anticipated expiration: 2029-07-24

Abstract

The utility model discloses a disc internal diameter measuring apparatu uses in work piece disc internal diameter measurement field, and its technical scheme main points are: the device comprises a base, a fixed column for placing a workpiece, a dial indicator, a movable shaft, a fixed shaft, a first clamping piece, a second clamping piece, a sliding plate and a first groove; has the technical effects that: the difference between the circular surface of the workpiece to be measured and the standard component can be converted into the displacement of the sliding block, the dial indicator is used for measuring the displacement of the sliding block to read related numerical values, and the measured numerical values are compared with standard values so as to judge whether the inner diameter of the circular surface of the workpiece to be measured reaches the standard.

Description

Circular surface inner diameter measuring instrument

Technical Field

The utility model relates to a work piece measurement field, in particular to round surface internal diameter measuring apparatu.

Background

At present, a lot of high accuracy work pieces that have the disc of producing in the mill, like figure 1, workpiece 2 that awaits measuring has disc 40, all need detect the internal diameter precision of disc 40 before dispatching from the factory, in order to guarantee that the work piece accords with the standard, the disc internal diameter is generally measured with slide caliper, it need calculate to read the reading when nevertheless using slide caliper to measure, the reading is troublesome and not direct-viewing, and the dial gauge can directly perceivedly show the reading with the dial plate, therefore need urgently in the trade a kind of instrument that uses the dial gauge to detect whether the disc internal diameter accords with the standard.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a circular surface internal diameter measuring apparatu, its advantage: the dial indicator can be used for visually detecting whether the inner diameter of the circular surface of the workpiece meets the standard or not.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a disc internal diameter measuring apparatu, includes the base, is used for placing fixed column and the percentage table of work piece, the fixed column is fixed in on the base, first recess has been seted up to the side of fixed column, be equipped with the fixed axle in the first recess and remove the axle, the fixed axle is fixed in on the inner wall of first recess, it moves the axle and connects in first recess to remove, and the top of affiliated fixed axle and removal axle is along first card of horizontal direction difference fixedly connected with and second card, first card and second card extend the outer fringe of fixed column, the bottom of removing the axle is connected with the slide, on the slide sliding connection base, the measuring head of percentage table is contradicted and is kept away from the one side of removing the axle at the slide.

Through the technical scheme, the operator pushes the removal axle to the fixed axle, the disc cover of the work piece that will await measuring is at the top of fixed column and fixed with the hand, move the slider towards the one side of keeping away from the removal axle again, the slider drive removes the axle and removes, make the second card remove to the help of fixed column, conflict on the disc inner wall of the work piece that awaits measuring until second card and first card, the disc internal diameter of the work piece that awaits measuring this moment changes the displacement of slider into through the displacement of removing the axle, the operator fixes the percentage table in a certain position with the hand, the measuring head of percentage table conflicts with the other end of slider, the dial plate that the operator can directly observe the percentage table at this moment reads the reading, measure the numerical value after the slider removes this moment, the numerical value that will survey compares with the standard value alright judge whether the disc.

The utility model discloses further set up to: first boss and second boss are equipped with towards first recess open-ended one side on the base, first boss and second boss conflict each other, first spout has been seted up to first boss and second boss bottom, the slider is located first spout, second waist type groove has been seted up to one side that the fixed column was kept away from to first boss and second boss, the measuring head of percentage table stretches into the conflict on the slider from second waist type groove.

Through above-mentioned technical scheme, the slider is located first concave groove, and first concave groove is used for direction slider horizontal migration, and the operator stretches into the measuring head of percentage table from second waist type groove and deviates from one side of removing the axle with the slider, and the disc of percentage table is contradicted at the opening part of second waist type groove to thereby the position of quick fixed percentage table reduces the possibility that influences the measuring result because of the fixed problem of percentage table.

The utility model discloses further set up to: one side that the removal axle was kept away from to the slide is connected with the hand (hold), first waist type groove has been seted up to one side that first boss and second boss deviate from the base, the hand (hold) stretches out from first waist type inslot.

Through above-mentioned technical scheme, when needing to remove the second card, operator's accessible removes the hand (hold), through hand (hold) drive slide, removal axle and second pulling-on piece removal to the quick convenient removal of driving removal axle and second card.

The utility model discloses further set up to: the bottom of hand (hold) is equipped with the touch multitouch, the measuring head of percentage table is contradicted on the touch multitouch.

Through above-mentioned technical scheme, during the measurement, the operator contradicts the measuring head of percentage table in the one side that the fixed column was kept away from to the conflict piece to ensure that the plane of percentage table and conflict piece is contradicted, reduce measuring error.

The utility model discloses further set up to: the both sides of slide are equipped with the slider respectively, the second spout has been seted up respectively to the both sides of first spout, slider sliding connection is in the second spout, be equipped with first spring in the second spout, the both ends of first spring are connected respectively on one side and the slider that the second spout deviates from the removal axle.

Through above-mentioned technical scheme, the slide removes the back towards the fixed column, and the spring is in compression state, because the elasticity of spring, the spring promotes the slider towards one side of keeping away from the fixed column, and drive slide, removal axle and second card move towards the percentage table, contradict until one side that slider and second spout are close to the percentage table.

The utility model discloses further set up to: the lifting disc is sleeved on the fixed column, a fifth groove is formed in one side, facing the opening of the first groove, of the lifting disc, the fifth groove is used for moving the moving shaft, a first guide cylinder is arranged at the bottom of the lifting disc, a first guide rod is arranged inside the first guide cylinder, the bottom of the first guide rod is fixed on the base, and a first locking knob penetrates through the first guide cylinder and is in threaded connection with the first guide cylinder.

Through above-mentioned technical scheme, the height of lifter plate is adjusted from top to bottom to the operator, adjusts the height of the first locking knob locking lifter plate of screwing after suitable height with the lifter plate, alright cover the work piece that awaits measuring at the top of fixed column and place on the lifter plate after that to the operator need not measure with the work piece that awaits measuring with the hand.

The utility model discloses further set up to: one side of keeping away from the fixed column on the base is equipped with the regulating part that is used for adjusting the percentage table position, the regulating part includes base, second guide cylinder, second guide bar and tray, pedestal connection is on the base, the second guide bar is fixed in on the base, the bottom of tray is fixed in at the top of second guide cylinder, the second guide bar stretches into the second guide cylinder, wear to establish and threaded connection has second locking knob on the second guide cylinder, second locking knob contradicts on the outer wall of second guide bar, set up the second recess with percentage table disc matched with on the tray, the third recess that supplies the percentage table sleeve to stretch out is seted up towards one side of fixed column to the tray, the fourth recess that supplies the percentage table to keep off the cap to stretch out is seted up to one side that the tray deviates from the fixed column.

Through above-mentioned technical scheme, the operator is through the height of guide cylinder and guide bar regulation tray, puts into the tray with the percentage table to adjust suitable height with the percentage table fast.

The utility model discloses further set up to: the adjusting piece further comprises a second spring, and two ends of the second spring are connected to the bottom of the tray and the base respectively.

Through above-mentioned technical scheme, because the spring is located the tray bottom, when the operator adjusts the tray height, need not to hold between the fingers the tray and reciprocate, only need press the tray with the finger and screw the fixed height that the second locking knob alright adjusted the percentage table after suitable position.

To sum up, the utility model discloses following beneficial effect has:

1. an operator can directly observe the dial plate of the dial indicator to read the reading, so as to judge whether the workpiece to be detected meets the standard;

2. the operator can utilize the adjusting part to adjust the position of percentage table fast.

Drawings

Fig. 1 is a schematic structural diagram of a workpiece to be measured.

Fig. 2 is a schematic view of the entire structure of embodiment 1.

Fig. 3 is a sectional view showing the structural relationship between the fixed shaft and the movable shaft in embodiment 1.

Fig. 4 is a sectional view showing a structure for embodying the second chute in embodiment 1.

Fig. 5 is a schematic structural view of a second waist-shaped groove in embodiment 1.

Fig. 6 is a schematic view of the entire structure of embodiment 2.

Fig. 7 is an enlarged view of a in fig. 6.

Fig. 8 is a top view structural view of embodiment 2.

Reference numerals: 1. a base; 2. a workpiece to be tested; 3. fixing a column; 4. a first groove; 5. a fixed shaft; 6. a movable shaft; 7. a first card; 8. a second card; 9. a first boss; 10. a second boss; 11. a first bolt; 12. a first chute; 13. a slide plate; 14. a handle; 15. a first waist-shaped groove; 16. a contact block; 17. a slider; 18. a second chute; 19. a first spring; 20. a second waist-shaped groove; 21. a lifting plate; 22. a fifth groove; 23. a first guide cylinder; 24. a first guide bar; 25. a first locking knob; 26. an adjustment member; 27. a base; 28. a third bolt; 29. a second guide cylinder; 30. a second guide bar; 31. a second locking knob; 32. a tray; 33. a second groove; 34. a third groove; 35. a fourth groove; 36. a second spring; 37. a second bolt; 38. a dial indicator; 39. a measuring head; 40. a circular inner wall; 41. a blocking cap; 42. a sleeve.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1: the utility model provides a disc internal diameter measuring apparatu, like fig. 2 and 3, including base 1 and the fixed column 3 that is used for placing workpiece 2 that awaits measuring, fixed column 3 is fixed in on the base 1, first recess 4 has been seted up along vertical direction to the side of fixed column 3, be equipped with fixed axle 5 and removal axle 6 in the first recess 4, fixed axle 5 is fixed in the inner wall of first recess 3, it slides and sets up in first recess 3 to remove axle 6, fixed axle 5 and the top of removing axle 6 are along first card 7 and the second card 8 of horizontal direction difference fixedly connected with, first card 7 and second card 8 extend the outer fringe of fixed column 3, first card 7 and second card 8's epitaxy all contradicts on the interior disc of workpiece that awaits measuring during the measurement.

Referring to fig. 2 and 4, a first boss 9 and a second boss 10 are arranged on one side of a fixed shaft 5 on a base 1 facing a moving shaft 6, the first boss 9 is fixed on the base 1, three first bolts 11 are arranged on the second boss 10, the second boss 10 is connected on the base 1 through the first bolts 11 by screw threads, the first boss 9 and the second boss 10 are mutually abutted, a first sliding groove 12 is arranged at the bottom of the first boss 9 and the bottom of the second boss 10, a sliding plate 13 is connected in the first sliding groove 12 in a sliding manner, one end of the sliding plate 13 close to the fixed column 3 is connected with the bottom of the moving shaft 6, sliding blocks 17 are respectively arranged on two sides of the sliding plate 13, second sliding grooves 18 are respectively arranged on two sides of the first sliding groove 12, the sliding block 13 is connected in the second sliding groove 18 in a sliding manner, first springs 19 are respectively arranged in the two second sliding grooves 18, two ends of the first springs 19 are respectively connected on one sides of, one end of the sliding plate 13, which is far away from the moving shaft 6, is connected with a handle 14, one side of the first boss 9 and the second boss 10, which deviates from the base 1, is provided with a first waist-shaped groove 15, the handle 14 extends out of the first waist-shaped groove 15, the handle 14 moves in the first waist-shaped groove 15, during measurement, when an operator moves the handle 14 towards the direction of the fixed shaft 5, the moving shaft 6 is driven to move towards the fixed shaft 5 through the sliding block 17, at the moment, the first spring 19 is in a compression state, the workpiece 2 to be measured is sleeved at the top of the fixed column 3, the handle 14 is loosened, the two first springs 19 recover from the compression state, the sliding block 17 is horizontally pushed, the sliding block 17 drives the second clamping piece 8 on the moving shaft 6 to move towards the outer edge of the fixed column 3 through the sliding plate 13, and at the moment, the outsides.

As shown in fig. 4 and 5, a second waist-shaped groove 20 is formed in one side of each of the first boss 9 and the second boss 10, which is far away from the fixed column 3, the diameter of the second waist-shaped groove 20 is larger than that of the dial indicator sleeve 42, so that the measuring head 39 of the dial indicator can be inserted horizontally, one side of the handle 14, which is far away from the sliding plate 13, is connected with the abutting block 16, during measurement, the measuring head 39 of the dial indicator 38 horizontally extends into the second waist-shaped groove 20, and the measuring head 39 abuts against the side surface of the abutting block 16.

The method comprises the following operation steps: moving the handle 14 towards one side of the fixed column 3, the handle 14 drives the sliding plate 13 and the moving shaft 6 to move towards the fixed shaft 5 until the moving shaft 6 abuts against the fixed shaft 5, then sleeving the standard piece on the top of the fixed column 3, maintaining the standard piece at a certain height by hand, releasing the handle 14, driving the moving shaft 6 to move towards the outer edge of the fixed column 3 by the first spring 19 through the sliding block 17 and the sliding plate 13 until the outer edges of the first card 7 and the second card 8 abut against the inner circular surface of the standard piece, horizontally inserting the measuring head 39 of the dial indicator 38 into the second waist-shaped groove 20, clamping the disc of the dial indicator 38 at the opening of the second waist-shaped groove 20 by hand, abutting the measuring head 39 of the dial indicator 38 against the abutting block 16, reading the measured value of the standard piece, taking out the dial indicator after reading the measured value of the standard piece, moving the handle 14 towards one side of the fixed shaft 5, and keeping the second card 8 away from the inner, taking down the standard part, measuring the workpiece to be measured, wherein the measuring operation steps of the workpiece to be measured are consistent with those of the standard workpiece, placing the workpiece to be measured 2 and the dial indicator 38, reading the reading of the dial indicator, if the measured value of the standard workpiece is 15, the workpiece to be measured with the reading of 10^20 is in accordance with the standard, and the workpiece to be measured with the measured value of less than 10 or more than 20 is not in accordance with the standard.

Example 2: the utility model provides a circular surface internal diameter measuring apparatu, the difference with embodiment 1 lies in, as shown in fig. 6, the cover is equipped with the lifting disk 21 that is used for placing the work piece 2 that awaits measuring on the fixed column 3, set up the fifth recess 22 that supplies the removal axle to remove on the lifting disk 21, the bottom of lifting disk 21 is connected with two first guide bars 24, first guide bar wears to establish in first guide cylinder 23, the bottom and the bottom of fixed column 3 of first guide cylinder 23 are connected, wear to establish and threaded connection has first locking bolt 25 on the first guide cylinder 23, when first locking bolt 25 is turned round, first locking bolt 25 contradicts on first guide bar 24 outer wall, lock the relative position of first guide cylinder 23 and first guide bar 24, thereby lock the height of lifting disk 21, the operator can place the work piece that awaits measuring on the lifting disk 21 during the measurement, measure again.

Referring to fig. 7 and 8, an adjusting part 26 for adjusting the position of the dial indicator 38 is disposed on one side of the base 1 away from the fixed column 3, the adjusting part 26 includes a base 27, a second guide cylinder 29, a second guide rod 30, two second springs 36 and a tray 32, the base 27 is connected to the base 1 through a second bolt 37 and threads, the upper surface of the base 1 is connected to the second guide rod 30, the bottom of the tray 32 is connected to the top of the second guide cylinder 29, the second guide rod 30 extends into the second guide cylinder 29, the second guide cylinder 30 is connected to a second locking knob 31 through threads, the second locking knob 31 abuts against the inner wall of the second guide rod 30, two ends of the two second springs 35 are respectively connected to the base 27 and the tray 32, the tray 32 is provided with a second groove 35 matched with the disk of the dial indicator 38, one side of the tray 32 close to the fixed column 3 is provided with a third groove 34 for extending the sleeve 42 of the dial indicator 38, a fourth groove 35 for the dial indicator 38 to extend out of the stopper cap 24 is formed in one side, which is far away from the third groove 34, of the tray, and when the dial indicator 38 is installed, an operator directly places the dial indicator 38 in the second groove 33, the third groove 34 and the fourth groove 35 of the tray 32.

The method comprises the following operation steps: an operator firstly moves the lifting disc 21 up and down, adjusts the lifting disc 21 to a proper height and screws the first locking knob 25, at the moment, the first locking knob 25 abuts against the outer wall of the first guide rod 24, the first locking knob 25 locks the relative position of the first guide cylinder 23 and the first guide rod 24, so as to lock the height of the lifting disc 21, then the handle 14 is pushed to one side of the moving shaft 6, at the moment, the moving shaft 6 moves to one side of the fixed shaft 5 until the moving shaft 6 abuts against the fixed shaft 5, at the moment, the first spring 19 is in a compressed state, the workpiece 2 to be measured is placed on the lifting disc 21, at the moment, the workpiece 2 to be measured is sleeved on the fixed column 3 and placed on the lifting disc 21, the first clamping piece 7 and the second clamping piece 8 are positioned on the circular inner wall 40 of the workpiece 2 to be measured, at the moment, the handle 14 is loosened, the first spring 19 rebounds to drive the moving shaft 6 to move, at this time, the outer edges of the first card 7 and the second card 8 abut against the inner wall 40 of the circular surface of the workpiece 2 to be measured, then the tray 32 is pressed, the position of the tray 32 is adjusted, the tray 32 is adjusted to a proper position, the second locking knob 31 is screwed, the second locking knob 31 abuts against the outer wall of the second guide rod 30, at this time, the second locking knob 31 locks the relative position of the second guide cylinder 29 and the second guide rod 30, so that the height of the tray 32 is fixed, after the position of the tray 32 is adjusted, the measuring head 39 of the dial indicator 38 extends into the second waist-shaped groove 20, and the dial indicator 38 is placed into the second groove 33, the third groove 34 and the fourth groove 35 on the tray 32, at this time, the measuring head 39 of the dial indicator 38 abuts against one side of the abutting block 16, the disc of the dial indicator 38 abuts against the inner wall of the second groove 33 close to the fourth groove 35, at this time, the position of the dial indicator 38 is fixed, the operator can directly observe the reading of the disk of the dial indicator 38, the reading of the standard component is 15, if the workpiece to be measured with the measurement value of 10^20 meets the standard, the workpiece to be measured with the measurement value of more than 20 or less than 10 does not meet the standard.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. A kind of round surface internal diameter survey meter, characterized by: including base (1), fixed column (3) and percentage table (38) that are used for placing the work piece, fixed column (3) set up on base (1), first recess (4) have been seted up to the side of fixed column (3), be equipped with fixed axle (5) and removal axle (6) in first recess (4), fixed axle (5) are fixed in on the inner wall of first recess (4), removal axle (6) remove to be connected in first recess (4), the top of fixed axle (5) and removal axle (6) is along horizontal direction respectively fixedly connected with first card (7) and second card (8), first card (7) and second card (8) extend the outer fringe of fixed column (3), the bottom of removing axle (6) is connected with slide (13), slide (13) sliding connection is on base (1), the measuring head (39) of percentage table (38) are contradicted and are kept away from the one side of removing axle (6) in slide (13).

2. The circular inner diameter measuring instrument according to claim 1, wherein: be equipped with first boss (9) and second boss (10) towards first recess (4) open-ended one side on base (1), first boss (9) and second boss (10) are contradicted each other, first spout (12) have been seted up to first boss (9) and second boss (10) bottom, slide (13) are located first spout (12), second waist type groove (20) have been seted up to one side that fixed column (3) were kept away from in first boss (9) and second boss (10), measuring head (39) of percentage table (38) are stretched into from second waist type groove (20) and are contradicted on slide (13).

3. The circular inner diameter measuring instrument according to claim 2, wherein: one side that removal axle (6) were kept away from in slide (13) is connected with hand (hold) (14), first waist type groove (15) have been seted up to one side that first boss (9) and second boss (10) deviate from base (1), the hand (hold) stretches out in first waist type groove (15).

4. The circular inner diameter measuring instrument according to claim 3, wherein: the bottom of hand (14) is equipped with and supports touch multitouch (16), the measuring head (39) of percentage table (38) are contradicted on supporting touch multitouch (16).

5. The circular inner diameter measuring instrument according to claim 4, wherein: the both sides of slide (13) are equipped with slider (17) respectively, second spout (18) have been seted up respectively to the both sides of first spout (12), slider (17) sliding connection is in second spout (18), be equipped with first spring (19) in second spout (18), the both ends of first spring (19) are connected respectively on one side and slider (17) that second spout (18) deviate from removal axle (6).

6. The circular inner diameter measuring instrument according to claim 5, wherein: the fixed column (3) is sleeved with a lifting disc (21), a fifth groove (22) is formed in one side, facing the opening of the first groove (4), of the lifting disc (21), the fifth groove (22) is used for moving the moving shaft (6), a first guide cylinder (23) is arranged at the bottom of the lifting disc (21), a first guide rod (24) is arranged inside the first guide cylinder (23), the bottom of the first guide rod (24) is fixed on the base (1), and a first locking knob (25) penetrates through the first guide cylinder (23) and is in threaded connection with the first guide cylinder.

7. The circular inner diameter measuring instrument according to claim 6, wherein: one side of the base (1) far away from the fixed column (3) is provided with an adjusting piece (26) used for adjusting the position of the dial indicator (38), the adjusting piece (26) comprises a base (27), a second guide cylinder (29), a second guide rod (30) and a tray (32), the base (27) is connected to the base (1), the second guide rod (30) is fixed to the base (27), the top of the second guide cylinder (29) is fixed to the bottom of the tray (32), the second guide rod (30) extends into the second guide cylinder (29), a second locking knob (31) penetrates through the second guide cylinder (29) and is in threaded connection with the second locking knob (31), the second locking knob (31) abuts against the outer wall of the second guide cylinder (30), a second groove (33) matched with a disc of the dial indicator (38) is formed in the tray (32), and a second sleeve (42) for extending the dial indicator (38) is formed in one side, facing the fixed column (3), of the tray (32) And a fourth groove (35) for extending the stop cap (41) of the dial indicator (38) is formed in one side of the tray (32) departing from the fixed column (3).

8. The circular inner diameter measuring instrument according to claim 7, wherein: the adjusting piece (26) further comprises a second spring (36), and two ends of the second spring (36) are respectively connected to the bottom of the tray (32) and the base (27).