CN217930160U - End quenching sample grinding depth measuring device - Google Patents
End quenching sample grinding depth measuring device Download PDFInfo
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- CN217930160U CN217930160U CN202221866810.1U CN202221866810U CN217930160U CN 217930160 U CN217930160 U CN 217930160U CN 202221866810 U CN202221866810 U CN 202221866810U CN 217930160 U CN217930160 U CN 217930160U
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- measuring device
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- 238000010791 quenching Methods 0.000 title claims abstract description 10
- 230000000171 quenching effect Effects 0.000 title claims abstract description 10
- 238000006073 displacement reaction Methods 0.000 claims abstract description 18
- 230000005389 magnetism Effects 0.000 abstract description 7
- 238000005259 measurement Methods 0.000 abstract description 7
- 229910001651 emery Inorganic materials 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 239000000523 sample Substances 0.000 description 7
- 239000012496 blank sample Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of measurement, in particular to a device for measuring the grinding depth of an end quenching sample, which comprises a bracket, wherein a fixed block is fixed at the top of the bracket, the bottom of the fixed block is connected with a measuring rod through an elastic part, and the measuring rod has electromagnetic property and is provided with a displacement sensor; the utility model discloses utilize with support elastic connection's and have electromagnetic characteristic's measuring staff, produce magnetism and work piece and inhale mutually when its circular telegram to downstream, displacement sensor produces the signal, and twice data difference is the grinding degree of depth around the grinding, avoids judging through the human experience and adjusts grinding emery wheel feed volume, and the grinding degree of depth differs great problem, the device simple structure, convenient operation and measure the accuracy.
Description
Technical Field
The utility model relates to a measure technical field, especially relate to an end quenches sample grinding degree of depth measuring device.
Background
The tail end hardenability test method is used for measuring the hardenability of steel, after a blank sample is subjected to heat treatment in a sample processing stage, the blank sample needs to be ground on a longitudinal grinding plane of the sample to a certain depth, then the hardness is measured, the hardenability of the blank sample is determined according to the change of the hardness value of the steel, the grinding depth is (0.4-0.5) mm according to the standard specification, and the grinding depth has strict requirements. In the prior art, due to the limitation of the working condition of equipment, the determination of the grinding depth of a blank sample is mostly that the feeding amount of a grinding wheel is manually judged and adjusted according to experience, and the problem of great difference of the grinding depth exists.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to solve the problem that the feeding amount of a grinding wheel is adjusted by manually judging according to experience in the prior art, and the grinding depth difference is large, the end quenching sample grinding depth measuring device is provided.
In order to solve the technical problem, the utility model discloses a following technical scheme: the utility model provides an end quenches sample grinding degree of depth measuring device includes the support, and the support is fixed on the mill, the support top is fixed with the fixed block, the fixed block bottom is connected with the measuring staff through the elastic component, and the elastic component can be used for driving the measuring staff for the spring and reset, the measuring staff has electromagnetic characteristic and installs displacement sensor on it, and displacement sensor is digital display formula, and the steel work piece is located the measuring staff below.
Before a workpiece is ground, firstly, a measuring rod is electrified, the measuring rod generates magnetism to attract a steel workpiece, the measuring rod moves downwards, a displacement sensor generates an initial signal, the measuring rod is powered off, the magnetism disappears, the measuring rod is separated from the workpiece under the elastic force of an elastic piece, then the workpiece is ground, the measuring rod is electrified again, the measuring rod moves downwards, the displacement sensor generates a signal again, the data difference value of the front time and the back time is the grinding depth, an operator adjusts a feed control system of a grinding machine grinding wheel according to the obtained data difference value, and the feed depth of the grinding machine grinding wheel is accurately controlled.
According to the technical scheme, the measuring rod which is elastically connected with the support and has the electromagnetic property is utilized, magnetism is generated when the measuring rod is electrified, the measuring rod and the workpiece are attracted, so that the measuring rod moves downwards, the displacement sensor generates signals, the grinding depth is determined by the data difference value of the grinding wheel before and after grinding, the problem that the grinding depth is greatly different due to the fact that the feeding amount of the grinding wheel is adjusted through artificial experience judgment is solved, and the device is simple in structure, convenient to operate and accurate in measurement.
Furthermore, the measuring bar comprises a sliding bar and an electromagnet located at the bottom of the sliding bar, most parts on the grinding machine are steel, if the whole measuring bar is the electromagnet, the whole measuring bar is magnetic after being electrified, and the measuring bar, the grinding machine and a workpiece attract each other to influence the measurement precision, so that the electromagnet can be arranged at the bottom of the measuring bar, and the influence of magnetic force is reduced.
Furthermore, a guide block is fixed at the bottom of the support, a guide hole is formed in the guide block, the measuring rod is connected in the guide hole in a sliding mode, the measuring rod is electrified and attracted to the workpiece, the width of the workpiece is larger than that of the measuring rod, the sliding rod can incline after the workpiece and the measuring rod are attracted to each other, accordingly measured displacement is affected, the sliding rod penetrates through the guide hole, the sliding rod can be prevented from inclining, and measuring accuracy is improved.
Furthermore, the width of the electromagnet is larger than that of the guide hole, the electromagnet is abutted to the bottom of the guide block, so that the zero point of each measurement is the same, and the condition that the electromagnet moves upwards under the action of the elastic piece under the action of inertia to cause deviation of subsequent displacement after sudden magnetic interruption is avoided.
Furthermore, two sliding rails are arranged on the support and distributed on two sides of the measuring rod, a sliding block is fixed on the measuring rod and is in sliding connection with the sliding rails, linear motion of the measuring rod can be further guaranteed through matching of the sliding rails and the sliding block, and the measuring rod is prevented from deflecting and affecting measuring accuracy.
Further, the slide rail top is equipped with the stopper, and the slide rail bottom is connected with the guide block and the guide block width is greater than the interval of two slide rails, and the slider slides between stopper and guide block, prevents that the slider from breaking away from.
The utility model has the advantages that: the utility model discloses utilize with support elastic connection's and have electromagnetic characteristic's measuring staff, produce magnetism and work piece and inhale mutually when its circular telegram to downstream, displacement sensor produces the signal, and twice data difference is the grinding degree of depth around the grinding, avoids judging through the human experience and adjusts the grinding emery wheel feed volume, and the grinding degree of depth differs great problem, and the device simple structure, convenient operation and measurement are accurate.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural view of the present invention;
in the figure:
1. a support; 2. a measuring bar; 201. a slide bar; 202. an electromagnet; 3. a displacement sensor; 4. an elastic member; 5. a fixed block; 6. a guide block; 601. a guide hole; 7. a slide rail; 8. a slider; 9. a limiting block; 10. and (5) a workpiece.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
The first embodiment is as follows:
as shown in fig. 1, the utility model relates to an end quenching sample grinding degree of depth measuring device, including support 1, support 1 is fixed on the mill, support 1 top is fixed with fixed block 5, 5 bottoms of fixed block are connected with measuring staff 2 through elastic component 4, and elastic component 4 can be the spring, measuring staff 2 has electromagnetic characteristic and installs displacement sensor 3 on it, and displacement sensor 3 is digital display formula, and steel work piece 10 is located measuring staff 2 below.
The measuring bar 2 comprises a sliding bar 201 and an electromagnet 202 located at the bottom of the sliding bar 201, most of parts on the grinding machine are steel, if the whole measuring bar 2 is the electromagnet 202, the whole measuring bar 2 is magnetic after being electrified, and the measuring bar 2, the grinding machine and the workpiece 10 are attracted mutually to influence the measurement precision, so that the electromagnet 202 can be arranged at the bottom of the measuring bar 2, and the influence of magnetic force is reduced.
The bottom of the support 1 is fixed with a guide block 6, a guide hole 601 is formed in the guide block 6, the measuring rod 2 is connected in the guide hole 601 in a sliding mode, the measuring rod 2 is electrified and attracted to the workpiece 10, the width of the workpiece 10 is larger than that of the measuring rod 2, the sliding rod 201 can incline after the workpiece 10 and the measuring rod are attracted to influence the measured displacement, the sliding rod 201 penetrates through the guide hole 601, the sliding rod 201 can be prevented from inclining, and the measuring precision is improved.
The width of the electromagnet 202 is larger than that of the guide hole 601, and the electromagnet 202 abuts against the bottom of the guide block 6, so that the zero point of each measurement is the same, and deviation caused by subsequent displacement due to upward movement of the electromagnet 202 under the action of the elastic part 4 under the action of inertia after sudden magnetic interruption is avoided.
The measuring device is characterized in that two sliding rails 7 are arranged on the support 1, the two sliding rails 7 are distributed on two sides of the measuring rod 2, a sliding block 8 is fixed on the measuring rod 2, the sliding block 8 is connected with the sliding rails 7 in a sliding mode, the linear motion of the measuring rod 2 can be further guaranteed through the matching of the sliding rails 7 and the sliding block 8, and the measuring device is prevented from deflecting and affecting measuring accuracy.
The top of the sliding rail 7 is provided with a limiting block 9, the bottom of the sliding rail 7 is connected with the guide block 6, the width of the guide block 6 is larger than the distance between the two sliding rails 7, and the sliding block 8 slides between the limiting block 9 and the guide block 6 to prevent the sliding block 8 from being separated from the sliding rail 7.
The working principle is as follows:
when the device is used, a steel workpiece 10 is fixed on a grinding machine, before the workpiece 10 is ground, the electromagnet 202 is electrified to generate magnetism to attract the steel workpiece 10, the measuring rod 2 is driven to move downwards, and the displacement sensor 3 generates an initial signal L 0 When the electromagnet 202 is powered off, the magnetism of the electromagnet 202 disappears, the electromagnet 202 is separated from the workpiece 10 under the elastic action of the elastic piece 4, and the measuring rod 2 is reset; setting the initial grinding feed amount of the grinding wheel according to the grinding amount and the required idle stroke, electrifying the electromagnet 202 again after grinding is finished, moving the measuring rod 2 downwards, and generating a signal L again by the displacement sensor 3 1 Data difference L of two times before and after 1 -L 0 Namely the grinding depth, the steps are repeated until the grinding amount reaches 0.4-0.5 mm required by the standard.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. The utility model provides an end quenches sample grinding depth measuring device which characterized in that: including support (1), support (1) top is fixed with fixed block (5), fixed block (5) bottom is connected with measuring staff (2) through elastic component (4), measuring staff (2) have electromagnetic characteristic and install displacement sensor (3) on it.
2. The end quenching sample grinding depth measuring device of claim 1, wherein: the measuring rod (2) comprises a sliding rod (201) and an electromagnet (202) located at the bottom of the sliding rod (201).
3. The end quenching sample grinding depth measuring device of claim 2, wherein: the measuring rod is characterized in that a guide block (6) is fixed at the bottom of the support (1), a guide hole (601) is formed in the guide block (6), and the measuring rod (2) is connected in the guide hole (601) in a sliding mode.
4. The end quenching sample grinding depth measuring device of claim 3, wherein: the width of the electromagnet (202) is larger than that of the guide hole (601), and the electromagnet (202) abuts against the bottom of the guide block (6).
5. The end quenching sample grinding depth measuring device of claim 4, wherein: the measuring device is characterized in that two sliding rails (7) are arranged on the support (1), the two sliding rails (7) are distributed on two sides of the measuring rod (2), a sliding block (8) is fixed on the measuring rod (2), and the sliding block (8) is connected with the sliding rails (7) in a sliding mode.
6. The end quenching sample grinding depth measuring device of claim 5, wherein: the top of the sliding rail (7) is provided with a limiting block (9), the bottom of the sliding rail (7) is connected with the guide block (6), the width of the guide block (6) is larger than the distance between the two sliding rails (7), and the sliding block (8) slides between the limiting block (9) and the guide block (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221866810.1U CN217930160U (en) | 2022-07-19 | 2022-07-19 | End quenching sample grinding depth measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221866810.1U CN217930160U (en) | 2022-07-19 | 2022-07-19 | End quenching sample grinding depth measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217930160U true CN217930160U (en) | 2022-11-29 |
Family
ID=84189980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221866810.1U Active CN217930160U (en) | 2022-07-19 | 2022-07-19 | End quenching sample grinding depth measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217930160U (en) |
-
2022
- 2022-07-19 CN CN202221866810.1U patent/CN217930160U/en active Active
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