CN218002443U - Single-sensor double-measuring-rod outer diameter measuring device - Google Patents
Single-sensor double-measuring-rod outer diameter measuring device Download PDFInfo
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- CN218002443U CN218002443U CN202221663280.0U CN202221663280U CN218002443U CN 218002443 U CN218002443 U CN 218002443U CN 202221663280 U CN202221663280 U CN 202221663280U CN 218002443 U CN218002443 U CN 218002443U
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Abstract
The utility model relates to a two survey pole external diameter measuring device of single sensor, including first lever and second lever, first lever and second lever are long banding structure, and first lever and second lever are connected the front lever respectively, and first lever and second lever set up along casing central line symmetry, and first lever is fixed with the coil, and the second lever is fixed with the magnetic core axle, is provided with the fixing base between first lever and the second lever, be provided with the stroke limit bolt between fixing base and first lever and the second lever, the cover is equipped with the pressure spring on the stroke limit bolt, the pressure spring contacts with first lever and second lever respectively. The utility model discloses set up the coil on first lever, set up the magnetic core axle on the second lever, adopt a set of electromagnetic mechanism to realize converting the displacement volume into the operation of inductance value, avoid mutual interference between two sets of electromagnetic mechanism, set up a set of electromagnetic mechanism and saved inside installation space, equipment is small has improved and has used the flexibility.
Description
Technical Field
The utility model relates to an external diameter precision detection sensor field, concretely relates to two measuring staff external diameter measuring device of single sensor.
Background
In the grinding process, the outer diameter length of a grinding object needs to be measured continuously, the conventional measuring device carries out contact measurement on a machined part through a measuring rod and a measuring probe at the front end, and the size change of the part generates relative displacement between a magnetic core and a coil in the measuring device through the measuring probe, a lever and other parts, so that the displacement is converted into inductance.
The existing detection device has the following problems:
1. current detection device sets up the sensor structure that the twin coil combines two magnetic cores, because magnetic core and coil inevitable existence difference such as size to and two sets of electromagnetic mechanism have the problem of inevitable mutual interference such as crosstalk when the signal is synthesized, thereby cause the index out of tolerance, need change magnetic core or coil this moment, adjust modes such as dynamometry and reduce the difference between two sets of electromagnetic mechanism and reach the accurate effect of detection.
2. In order to enable the detection device to have a large range, a large space is needed to provide a wide moving range for the lever, a sliding abrasion part is needed to be arranged to transmit displacement in order to ensure accuracy, the existing detection device is large in size, the use scene of the detection device is limited on the other hand, and the use flexibility of equipment is poor; the existing force measurement adjusting mechanism of the equipment adopts a tension spring to carry out free adjustment, does not carry out limit, can not directly reflect the adjustment result after adjustment, and can only determine that the tension spring is in a proper position by carrying out joint adjustment with a controller.
Disclosure of Invention
The utility model discloses a solve the current detection device flexibility poor and set up the problem that mutual interference easily appears in two sets of electromagnetic mechanism, provide a two survey pole external diameter measuring device of single sensor, the utility model discloses set up the coil on first lever, set up the magnetic core axle on the second lever, adopt a set of electromagnetic mechanism to realize converting the displacement volume into the operation of inductance volume, avoid mutual interference between two sets of electromagnetic mechanism, set up a set of electromagnetic mechanism and saved inside installation space, equipment is small has improved the use flexibility.
In order to realize the purpose, the technical scheme of the utility model is that:
the single-sensor double-measuring-rod outer diameter measuring device comprises a shell, a front lever and a lever mechanism connected with the front lever, wherein an electromagnetic mechanism is arranged at one end, away from the front lever, of the lever mechanism, the electromagnetic mechanism comprises a magnetic core shaft and a coil, the electromagnetic mechanism is used for converting displacement detected by a detector into an electric signal, the lever mechanism comprises a first lever and a second lever, the first lever and the second lever are both in long-strip structures, the first lever and the second lever are respectively connected with the front lever, and the first lever and the second lever are symmetrically arranged along the center line of the shell;
the coil is fixed with first lever, the magnetic core axle is fixed with the second lever, is provided with the fixing base between first lever and the second lever, be provided with the limit for journey bolt between fixing base and first lever and the second lever, the cover is equipped with the pressure spring on the limit for journey bolt, the pressure spring contacts with first lever and second lever respectively.
The coil is arranged on the first lever, the magnetic core shaft is arranged on the second lever, when the first lever and the second lever are stressed to move, the magnetic core shaft and the coil generate relative displacement, the displacement is converted into inductance parameters, and the real-time measurement of the outer diameter of the grinding workpiece is realized,
a stroke limiting bolt is arranged between the first lever and the second lever for limiting, and a pressure spring is arranged for realizing the resetting of the first lever and the second lever;
adopt a set of electromagnetic mechanism to reduce equipment volume, limit for journey bolt and pressure spring setting are between first lever and second lever, and the structure is compacter, further reduces equipment volume, has improved the use flexibility of equipment.
Further, the casing is inside hollow square structure, and two circular through-holes have been seted up to a side symmetry of casing, set up preceding lever in the circular through-hole, preceding lever is cylindric structure, and the diameter of preceding lever is less than circular through-hole diameter, is provided with the loss prevention pad between circular through-hole and preceding lever, the loss prevention pad includes front end and rear end, the front end is round platform column structure, the rear end is ladder cylindric structure, and front end and rear end structure as an organic whole, circular through-hole is seted up at loss prevention pad middle part, and the lever outside in the front is established to the inboard cover of loss prevention pad, and the outside and the casing contact of loss prevention pad.
The measuring rods are detachably connected with the front lever, the two measuring rods are in an outward expansion state on clamping a grinding workpiece, the tail parts of the first lever and the second lever which are connected with the front lever contract inwards, the damage prevention pad is arranged to optimize the flexibility of the movement of the front lever, the front lever is protected, and the dustproof effect is achieved.
Furthermore, the magnetic core axle is a columnar structure made of ferromagnetic materials, the coil corresponds to the magnetic core axle and is of a cylindrical structure, an extension section is arranged between the coil and the second lever, and the extension section is detachably connected with the second lever and the coil.
The matching degree of the magnetic core shaft and the coil is improved by arranging the extension section, so that the detection precision is improved.
Furthermore, the fixed seat comprises a square section and a convex section, the square section and the convex section are of an integrated structure, circular grooves are formed in the two waist side surfaces of the convex section, and the end part of the stroke-limiting bolt is arranged in the circular grooves;
the circular shape mounting groove has all been seted up to first lever and second lever, the mounting groove with circular recess corresponds, and the pole portion top of limit for distance bolt sets up inside the mounting groove, the pressure spring cover is established in the outside of limit for distance bolt, and the diameter of pressure spring is less than the diameter of limit for distance bolt tip, and the pressure spring sets up inside the mounting groove, and withstands the top surface of mounting groove.
The limiting bolt limits the first lever and the second lever, and the pressure spring enables the first lever and the second lever to reset. Because the distance from the limiting bolt to the first lever and the distance from the limiting bolt to the second lever are fixed in the initial state, the stroke limiting bolt and the pressure spring only need to be directly replaced during later maintenance, readjustment is not needed, the maintenance process is greatly simplified, and the production cost and the maintenance cost are directly reduced.
Furthermore, connecting blocks are arranged at the connecting positions of the front lever and the first lever as well as the second lever, the connecting blocks are square plates, one side of each connecting block is fixed with the front lever, a Y-axis leaf spring is arranged between the other side of each connecting block and the first lever as well as the second lever, the Y-axis leaf springs are square plate bodies, and the other ends of the Y-axis leaf springs are fixed with the square sections of the fixing seats through bolts;
an X-axis leaf spring is arranged between the side parts of the first lever and the second lever and the side part of the convex section of the fixing seat, the X-axis leaf spring is a square plate body, one end of the X-axis leaf spring is fixed with the first lever and the second lever through bolts, and the other end of the X-axis leaf spring is fixed with the convex section through bolts.
Set up 2Y axle leaf springs and 2X axle leaf springs and form 2 "cross" structures, combine the fixing base, 2 "cross" structures are independent mutually and interact again, under "cross" structural action, the difficult distortion of leaf spring during the survey pole operation has realized the high rigidity of device, has improved the durability of device.
Through the technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses a set up the coil in first lever afterbody, set up the magnetic core axle in second lever afterbody, convert the displacement volume to the inductance value when detecting, avoided the mutual interference of two sets of coils and magnetic core through the mutual motion of a set of coil and magnetic core axle.
2. The utility model discloses having optimized interior design, it is direct fixed with the pressure spring through the boss on the stroke limiting bolt, has saved one set of mechanism in dynamometry adjustment link, only needs direct change stroke limiting bolt and pressure spring during later stage maintenance, need not to adjust again, has greatly simplified the maintenance process, has reduced production and cost of maintenance.
3. The utility model discloses owing to saved dynamometry guiding mechanism, magnetic core and coil have reduced a set ofly moreover, have saved inside installation space for this device is compared in the external diameter detection device with the function on the market, and the appearance can reduce about 50%, and is less to installation space, or restricted occasion, has very big installation flexibility.
Drawings
Fig. 1 is one of the structural schematic diagrams of a single-sensor double-measuring-rod outer diameter measuring device of the present invention;
fig. 2 is a second schematic structural diagram of the single-sensor double-measuring-rod outer diameter measuring device of the present invention.
The reference numbers in the figures are: 1 is the casing, 2 is preceding lever, 3 is the magnetic core axle, 4 is the coil, 5 is first lever, 6 is the second lever, 7 is the fixing base, 8 is the limit for journey bolt, 9 is the loss prevention pad, 10 is the extension section, 11 is the connecting block, 12 is the pressure spring.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and detailed description:
example 1
As shown in fig. 1 to fig. 2, a single-sensor double-measuring-rod outer diameter measuring device includes a housing 1, a front lever 2, and a lever mechanism connected to the front lever 2, wherein an electromagnetic mechanism is disposed at one end of the lever mechanism away from the front lever 2, the electromagnetic mechanism includes a magnetic core shaft 3 and a coil 4, the electromagnetic mechanism is used for converting a displacement detected by a detector into an electrical signal, the lever mechanism includes a first lever 5 and a second lever 6, the first lever 5 and the second lever 6 are both of a strip structure, the first lever 5 and the second lever 6 are respectively connected to the front lever 2, and the first lever 5 and the second lever 6 are symmetrically disposed along a central line of the housing 1;
As an implementable mode, casing 1 is inside hollow square structure, and two circular through-holes have been seted up to a side symmetry of casing 1, set up preceding lever 2 in the circular through-hole, preceding lever 2 is cylindric structure, and the diameter of preceding lever 2 is less than circular through-hole diameter, is provided with loss prevention pad 9 between circular through-hole and preceding lever 2, loss prevention pad 9 includes front end and rear end, the front end is round platform column structure, the rear end is ladder cylindric structure, and front end and rear end structure as an organic whole, and circular through-hole is seted up at loss prevention pad 9 middle part, and the inside cover of loss prevention pad 9 is established outside preceding lever 2, and the outside and the casing 1 contact of loss prevention pad 9.
As an implementation manner, the magnetic core shaft 3 is a cylindrical structure made of ferromagnetic material, the coil 4 is a cylindrical structure corresponding to the magnetic core shaft 3, an extension section 10 is arranged between the coil 4 and the second lever 6, and the extension section 10 is detachably connected with the second lever 6 and the coil 4.
As an implementation mode, the fixing seat 7 comprises a square section and a convex section, the square section and the convex section are of an integrated structure, circular grooves are formed in two waist side surfaces of the convex section, and the end part of the stroke-limiting bolt 8 is arranged in the circular grooves;
As an implementation mode, a connecting block 11 is arranged at a connecting position of the front lever 2 with the first lever 5 and the second lever 6, the connecting block 11 is a square plate, one side of the connecting block 11 is fixed with the front lever 2, a Y-axis leaf spring is arranged between the other side of the connecting block 11 and the first lever 5 and the second lever 6, the Y-axis leaf spring is a square plate, and the other end of the Y-axis leaf spring is fixed with a square section of the fixing seat 7 through a bolt;
an X-axis leaf spring is arranged between the side parts of the first lever 5 and the second lever 6 and the side part of the convex section of the fixed seat 7, the X-axis leaf spring is a square plate body, one end of the X-axis leaf spring is fixed with the first lever 5 and the second lever 6 through bolts, and the other end of the X-axis leaf spring is fixed with the convex section through bolts.
The outer diameter measuring process of the apparatus in grinding work will be described with reference to the above embodiments:
firstly, a measuring rod with proper specification is selected according to the diameter of a workpiece and is assembled with a front lever 2, a measuring unit is arranged on the measuring rod, the two measuring units are contacted with the workpiece to be measured, the two measuring units are in a stressed state (for example, the size of the workpiece is phi 10mm, the distance between the two measuring units in an initial state is smaller than 10mm, the two measuring units are outwards broken, the distance between the two measuring units is larger than 10mm, the workpiece can be positioned between the two measuring units) at the moment, the measuring unit is connected to the front lever 2 through the measuring rod and is further connected with a first lever 5 and a second lever 6,
when the testers expand outwards, the tail ends of the first lever 5 and the second lever 6 draw close inwards (lever principle), the pressure spring 12 is stressed to contract, the corresponding magnetic core shaft 3 is located in the coil 12, the two testers begin to draw close inwards along with the change of the size of a workpiece in a grinding state, the measuring rod 2 follows the front lever 2, the first lever 5 and the second lever 7 move, in the moving process of the first lever 5 and the second lever 7, the pressure spring 12 gradually resets, the magnetic core shaft 3 and the coil 4 move relatively, and then an electric signal is generated.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the present invention, so that equivalent changes or modifications made by the structure, features and principles of the present invention should be included in the claims of the present invention.
Claims (5)
1. The single-sensor double-measuring-rod outer diameter measuring device comprises a shell (1), a front lever (2) and a lever mechanism connected with the front lever (2), wherein an electromagnetic mechanism is arranged at one end, far away from the front lever (2), of the lever mechanism and comprises a magnetic core shaft (3) and a coil (4), the electromagnetic mechanism is used for converting displacement detected by a measuring device into an electric signal, the single-sensor double-measuring-rod outer diameter measuring device is characterized in that the lever mechanism comprises a first lever (5) and a second lever (6), the first lever (5) and the second lever (6) are both long-strip-shaped structures, the first lever (5) and the second lever (6) are respectively connected with the front lever (2), and the first lever (5) and the second lever (6) are symmetrically arranged along the center line of the shell (1);
coil (4) are fixed with first lever (5), magnetic core axle (3) are fixed with second lever (6), are provided with fixing base (7) between first lever (5) and second lever (6), be provided with limit for journey bolt (8) between fixing base (7) and first lever (5) and second lever (6), the cover is equipped with pressure spring (12) on limit for journey bolt (8), pressure spring (12) contact with first lever (5) and second lever (6) respectively.
2. The single-sensor double-measuring-rod outer diameter measuring device as claimed in claim 1, wherein the casing (1) is of a square structure with a hollow interior, two circular through holes are symmetrically formed in one side surface of the casing (1), the front lever (2) is arranged in each circular through hole, the front lever (2) is of a cylindrical structure, the diameter of the front lever (2) is smaller than that of each circular through hole, the damage prevention pad (9) is arranged between each circular through hole and the corresponding front lever (2), the damage prevention pad (9) comprises a front end and a rear end, the front end is of a circular truncated cone-shaped structure, the rear end is of a stepped cylindrical structure, the front end and the rear end are of an integrated structure, the circular through holes are formed in the middle of the damage prevention pad (9), the inner side of the damage prevention pad (9) is sleeved outside the front lever (2), and the outer portion of the damage prevention pad (9) is in contact with the casing (1).
3. The single-sensor double-measuring-rod outer diameter measuring device according to claim 1, wherein the magnetic core shaft (3) is of a cylindrical structure made of ferromagnetic materials, the coil (4) is of a cylindrical structure corresponding to the magnetic core shaft (3), an extension section (10) is arranged between the coil (4) and the second lever (6), and the extension section (10) is detachably connected with the second lever (6) and the coil (4).
4. The single-sensor double-measuring-rod outer diameter measuring device as claimed in claim 1, wherein the fixing seat (7) comprises a square section and a convex section, the square section and the convex section are of an integrated structure, circular grooves are formed in two waist side surfaces of the convex section, and the end part of the stroke limiting bolt (8) is arranged in the circular grooves;
first lever (5) and second lever (6) have all been seted up circular shape mounting groove, the mounting groove with circular recess corresponds, and the pole portion top of limit for distance bolt (8) sets up inside the mounting groove, the outside at limit for distance bolt (8) is established in pressure spring (12) cover, and the diameter of pressure spring (12) is less than the diameter of limit for distance bolt (8) tip, and pressure spring (12) set up inside the mounting groove, and withstands the top surface of mounting groove.
5. The single-sensor double-measuring-rod outer diameter measuring device according to claim 4, characterized in that connecting blocks (11) are arranged at the connecting positions of the front lever (2) and the first lever (5) and the second lever (6), the connecting blocks (11) are square plates, one side of each connecting block (11) is fixed with the front lever (2), a Y-axis leaf spring is arranged between the other side of each connecting block (11) and the first lever (5) and the second lever (6), the Y-axis leaf springs are square plates, and the other ends of the Y-axis leaf springs are fixed with the square sections of the fixing seats (7) through bolts;
an X-axis leaf spring is arranged between the side parts of the first lever (5) and the second lever (6) and the side part of the convex section of the fixed seat (7), the X-axis leaf spring is a square plate body, one end of the X-axis leaf spring is fixed with the first lever (5) and the second lever (6) through bolts, and the other end of the X-axis leaf spring is fixed with the convex section through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221663280.0U CN218002443U (en) | 2022-06-30 | 2022-06-30 | Single-sensor double-measuring-rod outer diameter measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221663280.0U CN218002443U (en) | 2022-06-30 | 2022-06-30 | Single-sensor double-measuring-rod outer diameter measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN218002443U true CN218002443U (en) | 2022-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221663280.0U Active CN218002443U (en) | 2022-06-30 | 2022-06-30 | Single-sensor double-measuring-rod outer diameter measuring device |
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| CN (1) | CN218002443U (en) |
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- 2022-06-30 CN CN202221663280.0U patent/CN218002443U/en active Active
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