CN210321494U - Workpiece end face machining precision detection device - Google Patents
Workpiece end face machining precision detection device Download PDFInfo
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- CN210321494U CN210321494U CN201921178014.7U CN201921178014U CN210321494U CN 210321494 U CN210321494 U CN 210321494U CN 201921178014 U CN201921178014 U CN 201921178014U CN 210321494 U CN210321494 U CN 210321494U
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Abstract
The utility model relates to a work piece terminal surface machining precision detection device uses in machining precision detection area, and its technical scheme main points are: the dial indicator comprises a bottom plate and a dial indicator, wherein a plurality of supporting rods are arranged on the bottom plate, two longitudinal positioning blocks and two transverse positioning blocks are sequentially arranged on the bottom plate, and positioning rods are respectively arranged on the two longitudinal positioning blocks and the two transverse positioning blocks; four measuring blocks with the height respectively matched with the height of the four convex blocks on the workpiece are respectively arranged between the two longitudinal positioning blocks, measuring holes are respectively formed in the four measuring blocks, and measuring rods of the dial indicators penetrate through the measuring holes and are abutted against the convex blocks; has the technical effects that: the relative position of the workpiece and the dial indicator can be determined simultaneously, errors caused by manual adjustment of the dial indicator and the workpiece position are reduced, and the measurement accuracy is improved.
Description
Technical Field
The utility model belongs to the technical field of the technique that machining precision detected and specifically relates to a workpiece end face machining precision detection device is related to.
Background
Referring to fig. 1, four bolt holes 2 are respectively formed at four corners of a workpiece 1, and four projections 3 located on the same horizontal plane are respectively arranged on the workpiece 1.
This work piece need measure the machining precision of four lug terminal surfaces on its casing after processing is accomplished to whether qualified to the work piece after detecting the processing, and traditional measuring mode is measured for using the percentage table, but because this kind of work piece shape is special, is difficult to confirm the position of work piece and percentage table simultaneously, needs rely on the manual work to adjust the relative position of percentage table and work piece, later measures the surface to be measured of work piece, leads to measuring the precision lower.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a work piece terminal surface machining precision detection device, its advantage is: the relative position of the workpiece and the dial indicator can be determined simultaneously, errors caused by manual adjustment of the dial indicator and the workpiece position are reduced, and the measurement accuracy is improved.
The above technical purpose of the present invention can be achieved by the following technical solutions: a workpiece end face machining precision detection device comprises a bottom plate and a dial indicator, wherein a plurality of supporting rods with the heights matched with workpieces are arranged on the bottom plate, two longitudinal positioning blocks are sequentially arranged on the bottom plate along the length direction respectively, two transverse positioning blocks are sequentially arranged on the bottom plate along the width direction respectively, and positioning rods are arranged on the two longitudinal positioning blocks and the two transverse positioning blocks respectively; when the workpiece is erected on the support rods, the positioning rods of the two longitudinal positioning blocks and the positioning rods of the two transverse positioning blocks are respectively abutted against the workpiece, four measuring blocks with the heights matched with the heights of the four bumps on the workpiece are respectively arranged between the two longitudinal positioning blocks, measuring holes are respectively formed in the four measuring blocks, and the measuring rod of the dial indicator penetrates through the measuring holes and abuts against the bumps.
Through the technical scheme, a worker can correspondingly place the workpiece to be measured and the support rods on the support rods respectively, so that the two longitudinal positioning blocks and the positioning rods on the two transverse positioning blocks are tightly abutted against the workpiece respectively, the support rods play a role in supporting the workpiece, and the height position of the workpiece is determined; the four positioning rods are vertically arranged in pairs, and the workpiece is abutted between the four positioning rods to achieve the effect of determining the position of the workpiece relative to the bottom plate; at the moment, the position of the workpiece relative to the bottom plate is fixed, the four bumps on the workpiece are respectively in one-to-one correspondence with the four measuring holes on the four measuring blocks, then, a worker can respectively penetrate the measuring rods of the dial indicator through the four measuring holes to enable the contact of the dial indicator to be tightly abutted against the end faces of the bumps corresponding to the measuring holes, then, the end faces of the four bumps are respectively measured, and whether the workpiece to be measured is qualified is judged according to the measuring result; the measuring block and the measuring hole play a role in determining the relative position of the dial indicator relative to the base plate, the position of the dial indicator relative to the base plate is determined, namely the position of the dial indicator relative to the workpiece is determined, errors caused by manual adjustment of the dial indicator and the position of the workpiece are reduced, and the measuring accuracy is improved.
The utility model discloses further set up to: a plurality of first threaded holes are formed in the bottom plate in the width direction, and the four measuring blocks are respectively in bolted connection with the first threaded holes.
Through above-mentioned technical scheme, the staff can keep four measuring block positions each other unchangeable, then with four measuring block difference bolted connection to different first threaded holes to this comes the fixed distance of adjusting measuring block for the work piece, makes it and the length phase-match of percentage table measuring stick, has reduced the measuring block and has unmatched for the length of the distance of work piece and percentage table measuring stick, leads to the percentage table to be difficult to measure or influence the possibility of measuring accuracy to the work piece that awaits measuring.
The utility model discloses further set up to: the bottom plate is provided with two L-shaped fixing plates respectively, the two fixing plates are respectively penetrated and connected with first threaded shafts in a threaded manner, the first threaded shafts are respectively connected with first supporting plates in a rotating manner on the end faces of the bottom plate, and the first supporting plates are tightly attached to the dial indicator.
Through the technical scheme, after the staff wears to establish the measuring hole with the measuring stick of percentage table and fixes the percentage table and place, the first screw spindle of rotatory this side drives first backup pad rebound, hug closely on the percentage table until first backup pad, make the percentage table wholly keep the level, first backup pad plays the effect of outrigger percentage table, it places the downthehole back of measuring to have reduced the percentage table, only measuring stick part atress, make whole percentage table atress inhomogeneous, the one end of keeping away from the measuring stick receives self gravity influence can slope down slightly, influence the measurement accuracy of percentage table, lead to the possibility that the measuring result precision reduces.
The utility model discloses further set up to: a plurality of the bracing piece comprises two first branch that are close to the measuring block and set gradually along width direction and two second branches that keep away from the measuring block and set gradually along length direction respectively be equipped with the second backup pad on the second branch respectively.
Through above-mentioned technical scheme, the work piece that awaits measuring erects on two second backup pads and two first branches, and two second backup pads play the effect of the work piece that awaits measuring of stable support, have increased the work piece and erect the stability after on first branch and the second branch, have reduced the work piece and have taken place the skew or from the support frame landing influence measuring result's possibility in the measurement process.
The utility model discloses further set up to: and the end surfaces of the four measuring blocks, which are far away from the bottom plate, are respectively provided with second threaded holes communicated with the measuring holes, and fastening bolts are bolted in the second threaded holes.
Through above-mentioned technical scheme, after the staff worn to establish the measuring hole with the measuring stick of percentage table and fixed the placing of percentage table, can rotate the fastening bolt of this measuring hole top downwards, support the measuring stick of percentage table tightly on the inner wall of measuring hole for the percentage table is difficult to break away from the measuring hole, has reduced in the measurement process that the percentage table breaks away from the measuring hole department and drops, and then influences the possibility of percentage table self precision.
The utility model discloses further set up to: still contain U type standard block, be equipped with two standard rod unanimous with first bracing piece height on the bottom plate respectively.
Through the technical scheme, a worker can erect the standard block on the standard rod, then the dial indicator is used for measuring the distance between the end face of the standard block and the end face of the measuring block, the position of the standard block is adjusted to be in a zero position state by adjusting the dial indicator, then the workpiece to be measured is measured, the measurement result is the distance between the standard block and the projection, and the distance between the standard block and the measuring block is a fixed distance, so that the worker can judge whether the workpiece is qualified or not according to the measured distance between the standard block and the projection, and the fixed dial indicator is adjusted to be zero by using the standard block, so that the possibility that the pointer of the dial indicator deviates from the zero position in the installation process and the error of the measurement result is caused is reduced; the accuracy of the measuring result is further improved.
The utility model discloses further set up to: and the standard block is provided with two positioning holes matched with the standard rod.
Through above-mentioned technical scheme, staff's accessible is fixed the standard block to the standard rod with the mode that the locating hole on the standard block corresponds with the standard rod for the standard block is difficult to remove, and the skew appears in the position of standard block when having reduced the measurement, makes the distance between standard block and the measurement piece change, leads to the zero setting of percentage table to appear the error, and then influences the possibility of measuring result precision.
The utility model discloses further set up to: four corners of the bottom plate are respectively connected with leveling threaded shafts through bolts, and the leveling threaded shafts are rotatably connected with leveling gaskets on the end faces below the bottom plate.
Through the technical scheme, the distance of the leveling gasket relative to the bottom plate can be adjusted by a worker through respectively rotating the four leveling threaded shafts at the four corners of the bottom plate, so that the technical effect of leveling the bottom plate is achieved, and the possibility of errors of the measuring result caused by the fact that the bottom plate deviates from the horizontal plane and affects the measuring result is reduced.
To sum up, the utility model discloses a beneficial technological effect does:
1. the workpiece end face machining precision detection device can simultaneously determine the relative positions of the workpiece and the dial indicator, so that errors caused by manual adjustment of the dial indicator and the workpiece position are reduced, and the measuring precision is improved;
2. the fixed dial indicator is zeroed by the standard block, so that the possibility that the pointer of the dial indicator deviates from a zero position in the installation process to cause an error of a measuring result is reduced, and the precision of the measuring result is further improved.
Drawings
Fig. 1 is a schematic view of a structure of a workpiece in the prior art.
Fig. 2 is a schematic diagram for embodying the structure of the bottom plate in embodiment 1.
Fig. 3 is a schematic view of the entire structure of embodiment 1.
Fig. 4 is a schematic structural diagram for embodying the standard block position in embodiment 1.
FIG. 5 is a schematic view of the entire structure of embodiment 2.
Fig. 6 is a schematic structural diagram for embodying the standard block in embodiment 2.
Reference numerals: 1. a workpiece; 2. bolt holes; 3. a bump; 4. a base plate; 5. a dial indicator; 6. a support bar; 7. longitudinal positioning blocks; 8. a transverse positioning block; 9. positioning a rod; 10. a measuring block; 11. measuring a hole; 12. a first threaded hole; 13. a first threaded shaft; 14. a first support plate; 15. a first support bar; 16. a second support bar; 17. a second support plate; 18. a second threaded hole; 19. fastening a bolt; 20. a standard block; 21. a standard rod; 22. positioning holes; 23. leveling the threaded shaft; 24. leveling a gasket; 25. a standard end face; 26. and (7) fixing the plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1: a workpiece end face machining precision detection device is shown in figures 2 and 3 and comprises a bottom plate 4 and a dial indicator 5, wherein a plurality of support rods 6 with the heights matched with a workpiece 1 are arranged on the bottom plate 4, the support rods 6 are respectively composed of two first support rods 15 sequentially arranged along the width direction and two second support rods 16 sequentially arranged along the length direction, and two longitudinal positioning blocks 7 are sequentially arranged on the bottom plate 4 along the length direction; two transverse positioning blocks 8 are respectively and sequentially arranged along the width direction, and positioning rods 9 are respectively arranged on the two longitudinal positioning blocks 7 and the two transverse positioning blocks 8; extension lines between two adjacent four positioning rods 9 are vertically arranged in a pairwise crossing manner. Therefore, the worker can mutually correspond the workpiece 1 with the two first supporting rods 15 and the two second supporting rods 16, then the workpiece 1 is erected on the two second supporting plates 17 and the two first supporting rods 15, the end faces, facing the positioning rods 9, of the workpiece 1 are respectively abutted by the four positioning rods 9, at the moment, the end faces, away from the second supporting rods 16, of the four bumps 3 on the workpiece 1 are respectively parallel to the two transverse positioning blocks 8, and therefore the position of the workpiece 1 relative to the bottom plate 4 is determined.
As shown in fig. 2 and 3, four measuring blocks 10 with the heights respectively matched with the heights of the four bumps 3 on the workpiece 1 are respectively arranged between the two longitudinal positioning blocks 7, measuring holes 11 are respectively formed in the four measuring blocks 10, the four measuring holes 11 are respectively in one-to-one correspondence with the four bumps 3, second threaded holes 18 communicated with the measuring holes 11 are respectively formed in end faces, far away from the bottom plate 4, of the four measuring blocks 10, fastening bolts 19 are bolted in the second threaded holes 18, therefore, a worker can wear measuring rods of the dial indicator 5 in the measuring holes 11, the dial indicator 5 is rotated to be in a horizontal state, the measuring rods are tightly abutted to the measuring holes 11 by the fastening bolts 19 downwards rotating above the measuring holes 11, the dial indicator 5 is fixed in the measuring holes 11, and at the moment, the position of the dial indicator 5 relative to the bottom plate 4 is determined.
As shown in fig. 2 and 4, the device for detecting the machining accuracy of the end face of the workpiece further includes a U-shaped standard block 20, two standard rods 21 having the same height as the first supporting rod 15 are respectively disposed on the bottom plate 4, and the two standard rods 21 are located between the first supporting rod 15 and the second supporting rod 16. Therefore, the worker can correspondingly place the standard block on the standard rod 21 and abut against the four positioning rods 9, at the moment, the standard end face 25 on the standard block 20 abuts against the contact of the dial indicator 5 fixed in the measuring hole 11, and the position is adjusted to be the zero position of the dial indicator 5, so that the effect of zero adjustment of the dial indicator 5 is achieved.
As shown in fig. 3 and 4, after the operator zero-sets the dial indicator 5, the standard block 20 can be removed to fix the workpiece 1 to be measured on the bottom plate 4, and at this time, the positions of the workpiece 1 and the dial indicator 5 relative to the bottom plate 4 are determined, namely: the relative position of the workpiece 1 and the dial indicator 5 is determined, so that a worker can use the dial indicator 5 to measure the end face of the bump 3 corresponding to the measuring hole 11 where the dial indicator 5 is located on the workpiece 1, errors caused by manually adjusting the positions of the dial indicator 5 and the workpiece 1 are reduced, the measured result is the distance between the end face of the bump 3 and the standard end face 25, and the worker can judge whether the workpiece 1 is qualified or not according to the measured result because the distance between the standard end face 25 and the dial indicator 5 is a fixed distance. The end faces of the four bumps 3 can be measured by a worker in such a manner that the dial indicator 5 is fixed to the four measuring holes 11, respectively. After the dial indicator 5 is fixed on the bottom plate 4, the worker adjusts zero by using the standard block 20, so that the possibility that the pointer of the dial indicator 5 deviates from the zero position in the installation process to cause an error of a measurement result is reduced; the accuracy of the measuring result of the dial indicator 5 is further improved.
If fig. 2, a plurality of first screw holes 12 have been seted up along width direction on the bottom plate 4, the staff can be according to the length of percentage table 5 measuring rod, keep four measuring block 10 unchangeable in the position each other, then with four measuring block 10 difference bolted connection in suitable first screw hole 12, make it with the length phase-match of percentage table 5 measuring rod, it does not match for the length of the distance of work piece 1 and percentage table 5 measuring rod to have reduced measuring block 10, lead to the percentage table 5 to be difficult to measure or influence the possibility of percentage table 5 measurement accuracy to the work piece 1 that awaits measuring.
The operation process is as follows: the staff wears to establish in one of them measuring hole 11 with percentage table 5, and rotatory adjustment percentage table 5's position is to the level, and fastening bolt 19 of screwing is fixed with percentage table 5, places standard block 20 and zero-sets percentage table 5, takes off standard block 20 and will await measuring work piece 1 and correspond to place bottom plate 4 on, measure respectively the terminal surface of four lugs 3 on the work piece 1 that awaits measuring, judge then according to the measuring result whether qualified this work piece 1.
Example 2: a workpiece end face machining accuracy detecting device is different from that of embodiment 1 in that, as shown in FIG. 5, two second support rods 16 are respectively provided with a second support plate 17. The second supporting plate 17 increases the stability of the workpiece 1 to be measured after being placed, and makes the workpiece 1 easier for a worker to place, and reduces the possibility that the workpiece 1 is difficult to stably place the workpiece 1 on the supporting rods 6 because the workpiece 1 easily slides from the supporting rods 6 when the workpiece 1 is placed by the worker.
As shown in fig. 5, two L-shaped fixing plates 26 are respectively disposed on the bottom plate 4, first threaded shafts 13 are respectively inserted into the two fixing plates 26 and are in threaded connection with the two fixing plates 26, first supporting plates 14 are respectively rotatably connected to end surfaces of the two first threaded shafts 13 facing the bottom plate 4, and the first supporting plates 14 are located on one sides of the measuring blocks 10 far away from the supporting rods 6. Consequently, the staff is fixed back in the measuring hole 11 with percentage table 5, but the first screw spindle 13 of the rotatory position in this side, drive first backup pad 14 and upwards remove until hugging closely with percentage table 5, thereby play the supporting role to percentage table 5, at this moment, the measuring stick of percentage table 5 is supported by measuring hole 11, the dial plate of percentage table 5 is supported by first backup pad 14, the effect of centre gripping is stabilized by percentage table 5 has been reached, the unstable influence of percentage table 5 centre gripping has been reduced and the possibility of measuring the precision has been measured.
As shown in fig. 5 and 6, the standard block 20 is provided with two positioning holes 22 matching with the standard rod 21. Therefore, staff can place the standard block 20 on the bottom plate 4 through the mode that the locating hole 22 matches each other with the standard pole 21 for the standard block 20 is difficult to remove, has reduced zero setting in-process standard block 20's position and has appeared the skew, makes the distance between standard block 20 and the measuring block 10 change, leads to the zero setting of percentage table 5 to appear the error, and then influences the possibility of percentage table 5 measuring result precision.
As shown in fig. 5, four corners of the bottom plate 4 are respectively bolted with leveling threaded shafts 23, and the end surfaces of the leveling threaded shafts 23 below the bottom plate 4 are rotatably connected with leveling washers 24. Therefore, before measurement, a worker can level the bottom plate 4 by respectively rotating the four leveling threaded shafts 23 at the four corners of the bottom plate 4, so that the bottom plate 4 is always kept in a horizontal state in the measurement process, and the possibility of errors of the measurement result caused by deviation of the bottom plate 4 from the horizontal plane is reduced.
The operation process is as follows: before the measurement operation, the staff needs to level the bottom plate 4, after the dial indicator 5 is fixed by the fastening bolt 19, the first threaded shaft 13 is rotated to enable the first supporting plate 14 to be tightly attached to the dial indicator 5, and then the dial indicator 5 is zeroed.
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 (8)
1. The utility model provides a work piece terminal surface machining precision detection device which characterized in that: the workpiece positioning device comprises a bottom plate (4) and a dial indicator (5), wherein a plurality of supporting rods (6) with the heights respectively matched with those of a workpiece (1) are arranged on the bottom plate (4), two longitudinal positioning blocks (7) are respectively and sequentially arranged on the bottom plate (4) along the length direction, two transverse positioning blocks (8) are respectively and sequentially arranged on the bottom plate (4) along the width direction, and positioning rods (9) are respectively arranged on the two longitudinal positioning blocks (7) and the two transverse positioning blocks (8); when the workpiece (1) is erected on the support rods (6), the positioning rods (9) of the two longitudinal positioning blocks (7) and the two transverse positioning blocks (8) are respectively abutted against the workpiece (1), four measuring blocks (10) which are respectively matched with the four bumps (3) on the workpiece (1) in height are respectively arranged between the two longitudinal positioning blocks (7), measuring holes (11) are respectively formed in the four measuring blocks (10), and the measuring rods of the dial indicator (5) penetrate through the measuring holes (11) and are abutted against the bumps (3).
2. The apparatus for detecting the machining accuracy of the end face of a workpiece according to claim 1, characterized in that: a plurality of first threaded holes (12) are formed in the bottom plate (4) in the width direction, and the four measuring blocks (10) are respectively connected into the first threaded holes (12) in a bolt mode.
3. The apparatus for detecting the machining accuracy of the end face of a workpiece according to claim 1, characterized in that: be equipped with two L type fixed plates (26) on bottom plate (4) respectively, two wear to establish respectively on fixed plate (26) and threaded connection has first screw shaft (13), two first screw shaft (13) rotate respectively on the terminal surface towards bottom plate (4) and are connected with first backup pad (14), first backup pad (14) are hugged closely each other with percentage table (5).
4. The apparatus for detecting the machining accuracy of the end face of a workpiece according to claim 1, characterized in that: a plurality of bracing piece (6) are close to first branch (15) that measuring block (10) set gradually along width direction and two second branch (16) that keep away from measuring block (10) and set gradually along length direction by two respectively and constitute, two be equipped with second backup pad (17) on second branch (16) respectively.
5. The apparatus for detecting the machining accuracy of the end face of a workpiece according to claim 3, characterized in that: and the end surfaces of the four measuring blocks (10) far away from the bottom plate (4) are respectively provided with second threaded holes (18) communicated with the measuring holes (11), and fastening bolts (19) are bolted in the second threaded holes (18).
6. The apparatus for detecting the machining accuracy of the end face of a workpiece according to claim 4, characterized in that: still contain U type standard block (20), be equipped with two standard rod (21) unanimous with first branch (15) height on bottom plate (4) respectively.
7. The apparatus for detecting the machining accuracy of the end face of a workpiece according to claim 6, characterized in that: the standard block (20) is provided with two positioning holes (22) matched with the standard rods (21).
8. The apparatus for detecting the machining accuracy of the end face of a workpiece according to claim 1, characterized in that: four corners of the bottom plate (4) are respectively connected with leveling threaded shafts (23) through bolts, and the leveling threaded shafts (23) are rotatably connected with leveling gaskets (24) on the end faces below the bottom plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921178014.7U CN210321494U (en) | 2019-07-24 | 2019-07-24 | Workpiece end face machining precision detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921178014.7U CN210321494U (en) | 2019-07-24 | 2019-07-24 | Workpiece end face machining precision detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210321494U true CN210321494U (en) | 2020-04-14 |
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ID=70126174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921178014.7U Expired - Fee Related CN210321494U (en) | 2019-07-24 | 2019-07-24 | Workpiece end face machining precision detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210321494U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112697017A (en) * | 2020-12-18 | 2021-04-23 | 哈尔滨电气动力装备有限公司 | Device for detecting size of key part of mechanical seal of nuclear main pump |
-
2019
- 2019-07-24 CN CN201921178014.7U patent/CN210321494U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112697017A (en) * | 2020-12-18 | 2021-04-23 | 哈尔滨电气动力装备有限公司 | Device for detecting size of key part of mechanical seal of nuclear main pump |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200414 Termination date: 20210724 |
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| CF01 | Termination of patent right due to non-payment of annual fee |