CN215677943U - Rockwell hardness tester based on indentation depth - Google Patents
Rockwell hardness tester based on indentation depth Download PDFInfo
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- CN215677943U CN215677943U CN202121618454.7U CN202121618454U CN215677943U CN 215677943 U CN215677943 U CN 215677943U CN 202121618454 U CN202121618454 U CN 202121618454U CN 215677943 U CN215677943 U CN 215677943U
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Abstract
The utility model discloses a Rockwell hardness tester calibrating device based on indentation depth, belonging to the technical field of hardness tester detection and comprising a Rockwell hardness tester main body, a top end connecting block, a force sensor, a connecting piece, a hardness tester pressure head, a displacement sensor, a data output device and a data transmission line; wherein the force sensor captures and obtains a force value loaded on a durometer; the displacement sensor can synchronously acquire the falling distance of the indenter of the hardness tester in the process of pressing down the indenter of the hardness tester; the data output device can select a scale corresponding to the hardness tester, record and store data, generate detection original data, and can be connected with a certificate system to generate a verification certificate. The Rockwell hardness tester calibrating device based on the indentation depth adopts an integrated design, reduces errors caused by manual operation, has linear precision of displacement superior to 0.2 mu m, and has the precision of a force sensor of 0.3 grade and above; and the stability is high, the service life is long, and the device can replace the traditional verification equipment and method.
Description
Technical Field
The utility model belongs to the technical field of hardness tester detection, and particularly relates to a Rockwell hardness tester calibrating device based on indentation depth.
Background
The rockwell hardness test is carried out by applying test forces (initial test force F0 and total test force F0 + F1) to the surface of a test material twice before and after using a standard-type indenter, and pressing the indenter into the surface of a test sample under the test forces. After the total test force has been maintained for a certain time, the main test force F1 is removed and the indentation depth is measured with the initial test force F0 remaining, and the difference between the indentation depth at the total test force and the indentation depth at the initial test force (i.e. the so-called residual indentation depth) is used to characterize the hardness, the greater the residual indentation depth value, the lower the hardness value and vice versa.
The indenter force value, indentation depth and hardness indication value of the Rockwell hardness tester are three main items which must be done for the first test in the test procedure of the hardness tester. Traditional methods require multiple sets of equipment: a set of force measuring standard machines is used to determine the initial and return force values. The indentation size is measured by a special optical instrument to calculate the indentation depth, then the hardness indicating value is calculated according to the relation between the depth and the hardness under the corresponding load, and the indentation depth measuring device of the hardness tester is detected by a special depth measuring device calibrating instrument.
The traditional measuring method has the following disadvantages: the calibration method comprises the following steps that firstly, too many standards relate to a multi-set force standard machine, a special optical instrument and a depth measuring device calibrator; secondly, the microscope and the vertical optical meter are inconvenient to carry, and cannot be brought to a customer site conveniently, and the Rockwell hardness tester cannot be used for real inspection due to the weight and the installation condition; thirdly, certain data errors can be caused by the operation of different operators; fourthly, the data acquisition sources are too many, the measurement process is complex, uncertain components are introduced in data calculation, and data processing is inconvenient.
Based on the four reasons, the traditional measuring method has low detection efficiency and high requirement on detection personnel, so that the novel detection device of the Rockwell hardness tester is used.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to overcome the defects, the utility model aims to provide a Rockwell hardness tester calibrating device based on indentation depth, which solves the problems that the Rockwell hardness tester calibrating process in the prior art is time-consuming and troublesome, consumes a large number of standard hardness blocks, obtains a specific numerical value which is not an error and is a qualified limit value.
The technical scheme is as follows: a Rockwell hardness tester calibrating device based on indentation depth comprises a Rockwell hardness tester main body, a top end connecting block, a force sensor, a connecting piece, a hardness tester pressure head, a displacement sensor, a data output device and a data transmission line, wherein the top end connecting block is connected with the Rockwell hardness tester main body; wherein the force sensor captures and obtains a force value loaded on a durometer; the displacement sensor can synchronously acquire the falling distance of the indenter of the hardness tester in the process of pressing down the indenter of the hardness tester; the data output device can select a scale corresponding to the hardness tester, record and store data, generate detection original data, and can be connected with a certificate system to generate a verification certificate. The Rockwell hardness tester calibrating device based on the indentation depth adopts an integrated design, reduces errors caused by manual operation, has linear precision of displacement superior to 0.2 mu m, and has the precision of a force sensor of 0.3 grade and above; and the stability is high, the service life is long, and the device can replace the traditional verification equipment and method.
Further, in the rockwell hardness tester based on indentation depth, the accuracy of the force sensor is 0.3 grade or more; the precision of the displacement sensor is more than 0.2 μm.
Further, foretell rockwell hardness tester calibrating installation based on indentation degree of depth, be equipped with test bench, test bench elevating component and test piece centre gripping subassembly in the rockwell hardness tester main part, test bench elevating component is fixed to be set up in the rockwell hardness tester main part, test bench and test bench elevating component fixed connection to the test bench is located the hardwell indenter under, test piece centre gripping subassembly sets up on the test bench, can place standard rockwell hardness piece on the test bench, test piece centre gripping subassembly can carry out the centre gripping of standard rockwell hardness piece fixedly. On traditional rockwell hardness meter's basis, set up elevation structure to automatic to set up experimental centre gripping subassembly, can be in the testing process, keep the stability of standard rockwell hardness piece.
Furthermore, the rockwell hardometer calibrating device based on indentation depth comprises a test bed lifting assembly, a motor support base, a lifting driving screw rod sleeve, a support sleeve and a horizontal support plate, wherein the motor support base is fixedly arranged on a rockwell hardometer main body, the lifting driving motor and the support sleeve are fixedly arranged on the motor support base and are connected with the lifting driving screw rod, the lifting driving screw rod sleeve is sleeved on the lifting driving screw rod and is in threaded connection with the lifting driving screw rod, the motor support base is fixedly connected with the lower end part of the lifting driving screw rod sleeve, the lifting driving screw rod sleeve is in sliding connection with the support sleeve, the upper end part of the lifting driving screw rod sleeve extends out of the support sleeve, and the lifting driving screw rod sleeve extends out of the upper end part of the support sleeve and is fixedly connected with the horizontal support plate, the test bed is fixedly arranged on the upper end face of the horizontal support plate. Through the structure of lead screw and lead screw cover, can be under control system's effect, the lift height of accurate control test bench.
Further, foretell rockwell hardness meter calibrating installation based on indentation degree of depth, through screw fixedly connected with lift direction slide on the outer wall of lift drive lead screw cover, be equipped with a set of vertical guide post between the inside upper and lower terminal surface of support sleeve, be equipped with a set of direction sliding sleeve on the lift direction slide, a set of direction sliding sleeve and a set of vertical guide post one-to-one set up to vertical guide post and direction sliding sleeve sliding connection. The guide structure keeps the stability of vertical movement.
Further, foretell rockwell sclerometer calibrating installation based on indentation degree of depth, test piece centre gripping subassembly includes centre gripping driving motor, roating seat, a set of centre gripping arm and centre gripping arm centre gripping drive block, the test bench passes through the fix with screw setting on horizontal support plate's up end, centre gripping driving motor sets up on the test bench to centre gripping driving motor's pivot and roating seat are connected, the intermediate position and the test bench of a set of centre gripping arm are articulated, centre gripping arm centre gripping drive block sets up inside the test bench to centre gripping arm centre gripping drive block and roating seat are connected, the one end and the centre gripping arm centre gripping drive block of a set of centre gripping arm are connected.
Further, foretell rockwell sclerometer calibrating installation based on indentation degree of depth, the upper end of roating seat is equipped with the double-screw bolt, the upper end of double-screw bolt is equipped with stop screw, centre gripping arm centre gripping drive block and double-screw bolt threaded connection, the inside of test bench is equipped with cavity one, be equipped with the spacing ring on the inner wall of cavity one, be equipped with spacing boss on the outer wall of tip under the roating seat, roating seat and centre gripping arm centre gripping drive block set up in cavity one, the up end of spacing boss and the lower terminal surface of spacing ring contact, the cover is equipped with the spring on the roating seat, the spring is located between the up end of spacing ring and the lower terminal surface of centre gripping arm centre gripping drive block. Through the rotation of the motor drive stud, the clamping arm clamping driving block can move up and down, and the clamping arm clamping driving block moves up and down, so that pressure can be respectively applied to the upper surface and the lower surface of the clamping arm, and the clamping arm can rotate to clamp the workpiece to be detected.
Furthermore, according to the Rockwell hardness tester calibrating device based on the indentation depth, the cross section of the clamping arm clamping driving block is circular, an annular groove is formed in the outer circumference of the clamping arm clamping driving block, the clamping arm is a right-angle plate and is connected with the test bed through a rotating shaft, one end of the clamping arm extends into the first cavity, the end portion, extending to the first cavity, of the clamping arm is arranged in the annular groove, the end portion of the clamping arm is in rolling connection with the first cavity, and the group of clamping arms are arranged in an annular array mode by taking the center of the clamping arm clamping driving block as the center of a circle.
Further, according to the Rockwell hardness tester calibrating device based on the indentation depth, the upper end surface of the test bed is provided with the first groove with a circular cross section, the standard Rockwell hardness block is arranged in the first groove, the test bed is provided with the second groove, the second groove is arranged in an annular array mode by taking the center of the clamping arm clamping driving block as the center of circle, the second groove and the second clamping arm are arranged in a one-to-one correspondence mode, the clamping arms are arranged in the second groove, the second groove is communicated with the first cavity and the first groove, the inner wall of the upper end part of the clamping arms is located in the first groove, one end, close to the clamping arm clamping driving block, of each clamping arm is arranged in a spherical shape, the third groove is arranged at the position, close to the outer circumference of the clamping arm clamping driving block, of each clamping arm, and the third groove is located on the part, extending out of the first groove, of each clamping arm.
The utility model relates to a working method of a Rockwell hardness tester calibrating device based on indentation depth, which comprises the following steps:
s1, placing the standard Rockwell hardness block in the first groove of the test bed;
s2, starting a clamping driving motor to drive the rotating seat and the stud to rotate, wherein the clamping arm clamping driving block descends along the vertical direction of the stud as the clamping arm clamping driving block is in threaded connection with the stud;
s3, the clamping arm clamping driving block moves downwards, so that the clamping arm clamping driving block applies pressure to the spherical part of the clamping arm, a group of clamping arms rotate around a rotating shaft between the clamping arm and the test bed, and the upper end parts of the clamping arms shrink towards the center direction of the test bed;
s4, the group of clamping arms synchronously act, and the group of clamping arms are contacted with the standard Rockwell hardness block in the groove I in the process of gradually contracting until the group of clamping arms are pressed on the outer surface of the standard Rockwell hardness block;
s5, starting a lifting driving motor to drive a lifting driving screw rod to rotate, wherein the lifting driving screw rod is in threaded connection with a lifting driving screw rod sleeve, the lifting driving screw rod sleeve rises along the vertical direction to reach a set position, and the lifting driving motor stops;
s6, the Rockwell hardness meter main part drives the top connecting block to descend, the force sensor, the hardness meter pressure head and the displacement sensor descend synchronously, until the hardness meter pressure head contacts the upper surface of the standard Rockwell hardness block to detect the hardness, and the force sensor and the displacement sensor acquire data through the data output device and analyze the data, so that the detection data of the load and the press-in depth of the Rockwell hardness meter are obtained, and through system data processing, after the deformation of the force value sensor, the displacement sensor, the connecting piece and the like is corrected, the standard hardness value and the actually measured hardness value can be directly displayed.
The technical scheme shows that the utility model has the following beneficial effects: according to the Rockwell hardness tester calibrating device based on the indentation depth, the displacement sensor and the hardness tester pressure head are integrated, the measuring method for judging the state of the Rockwell hardness tester through the change of the displacement sensor is adopted, the intelligent judgment of the displacement sensor is realized, the result of the data detected by the data output device can be displayed to a user visually, the using steps are simplified, the last measuring result can be reserved on the display screen even if the measuring steps are finished, and the recording of the user is facilitated. When the next test piece is measured, the working method of the Rockwell hardness tester calibrating device based on the indentation depth is simple and easy in working principle, few detection personnel are needed, the detection can be completed by only one worker, and the detection efficiency is improved.
Drawings
FIG. 1 is a schematic structural diagram of a first embodiment of a Rockwell hardness tester apparatus based on indentation depth according to the present invention;
FIG. 2 is a schematic diagram of a first embodiment of a Rockwell hardness tester apparatus based on indentation depth according to the present invention;
FIG. 3 is a second diagram of an embodiment of a Rockwell hardness tester apparatus based on indentation depth according to the utility model;
FIG. 4 is a schematic structural view of a test bed lifting assembly according to the present invention;
FIG. 5 is a schematic view of a specimen clamping assembly according to the present invention;
FIG. 6 is a top view of the test piece clamping assembly of the present invention.
In the figure: the device comprises a Rockwell hardness tester body 1, a top end connecting block 2, a force sensor 3, a connecting piece 4, a hardness tester pressure head 5, a displacement sensor 6, a data output device 7, a data transmission line 8, a test table 9, a first cavity 91, a limiting ring 92, a first groove 93, a second groove 94, a test table lifting assembly 10, a lifting driving motor 101, a motor supporting seat 102, a lifting driving screw rod 103, a lifting driving screw rod sleeve 104, a supporting sleeve 105, a horizontal supporting plate 106, a lifting guiding sliding plate 107, a vertical guiding column 108, a guiding sliding sleeve 109, a test piece clamping assembly 20, a clamping driving motor 201, a rotating seat 202, a clamping arm 203, a clamping arm clamping driving block 204, a screw bolt 205, a limiting screw 206, a limiting boss 207, a spring 208, an annular groove 209 and a third groove 210.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Example one
The rockwell hardness tester based on indentation depth as shown in fig. 1 and 2 comprises a rockwell hardness tester body 1, a top end connecting block 2, a force sensor 3, a connecting piece 4, a hardness tester pressure head 5, a displacement sensor 6, a data output device 7 and a data transmission line 8, wherein the top end connecting block 2 is connected with the rockwell hardness tester body 1, the force sensor 3 is connected with the top end connecting block 2, the connecting piece 4 is connected with the force sensor 3, the hardness tester pressure head 5 and the displacement sensor 6 are both fixedly arranged on the connecting piece 4, the rockwell hardness tester body 1 can drive the connecting piece 4 to lift in the vertical direction, and the data output device 7 is connected with the rockwell hardness tester body 1 through the data transmission line 8; wherein, the force sensor 3 captures and obtains a force value loaded on a hardness tester; the displacement sensor 6 can synchronously acquire the falling distance of the indenter 5 of the hardness tester in the process of pressing down the indenter 5 of the hardness tester; the data output device 7 can select a scale corresponding to the hardness tester, record and store data, generate detection original data, and can be connected with a certificate system to generate a verification certificate. The precision of the force sensor 3 is 0.3 grade or more; the accuracy of the displacement sensor 6 is more than 0.2 μm.
The top end connecting block 2 is connected with a hardness tester to be tested, and the force sensor 3 captures and obtains a force value loaded on the hardness tester through the action of pressing down by a pressure head 5 of the hardness tester; the hardness tester pressure head 5 is in hard connection with the displacement sensor 6 through a connecting piece, and the displacement sensor 6 can synchronously acquire the falling distance of the pressure head in the process of pressing down the hardness tester pressure head 5; the data output device 7 is internally provided with special analysis software, can select a scale corresponding to the hardness tester, records and stores data, generates detection original data, and can be connected with a certificate system to generate a verification certificate. The displacement sensor 6 is in hard connection with the hardness tester pressure head 5 through a connecting piece; the data output device 7 is connected with the detection device, and is used for transmitting signals and data and providing electric energy. Top connecting block 2 and connecting piece 4 formula structure as an organic whole, force sensor 3 and displacement sensor 6 all imbed in the coupling mechanism that top connecting block 2 and connecting piece 4 constitute.
Example two
As shown in fig. 3, a rockwell hardness tester main body 1 is provided with a test table 9, a test table lifting assembly 10 and a test piece clamping assembly 20, the test table lifting assembly 10 is fixedly arranged on the rockwell hardness tester main body 1, the test table 9 is fixedly connected with the test table lifting assembly 10, the test table 9 is positioned under a hardness tester indenter 5, the test piece clamping assembly 20 is arranged on the test table 9, a standard rockwell hardness block can be placed on the test table 9, and the test piece clamping assembly 20 can clamp and fix the standard rockwell hardness block.
As shown in fig. 4, the test table lifting assembly 10 includes a lifting driving motor 101, a motor support 102, a lifting driving screw 103, a lifting driving screw sleeve 104, a support sleeve 105 and a horizontal support plate 106, the motor support 102 is fixedly disposed on the rockwell hardness tester body 1, the lifting driving motor 101 and the support sleeve 105 are both fixedly disposed on the motor support 102, the lifting driving motor 101 is connected with the lifting driving screw 103, the lifting driving screw sleeve 104 is sleeved on the lifting driving screw 103, the lifting driving screw sleeve 104 is in threaded connection with the lifting driving screw 103, the motor support 102 is fixedly connected with the lower end of the lifting driving screw sleeve 104, the lifting driving screw sleeve 104 is slidably connected with the support sleeve 105, the upper end of the lifting driving screw sleeve 104 extends out of the support sleeve 105, the lifting driving screw sleeve 104 extends out of the upper end of the support sleeve 105 and is fixedly connected with the horizontal support plate 106, the test bed 9 is fixedly arranged on the upper end surface of the horizontal support plate 106.
Go up and down through screw fixedly connected with lift direction slide 107 on the outer wall of lift drive lead screw cover 104, be equipped with a set of vertical guide post 108 between the inside upper and lower terminal surface of support sleeve 105, be equipped with a set of direction sliding sleeve 109 on the lift direction slide 107, a set of direction sliding sleeve 109 and a set of vertical guide post 108 one-to-one set up to vertical guide post 108 and direction sliding sleeve 109 sliding connection.
The test piece clamping assembly 20 shown in fig. 5 and 6 comprises a clamping driving motor 201, a rotating base 202, a group of clamping arms 203 and a clamping arm clamping driving block 204, wherein the test table 9 is fixedly arranged on the upper end surface of the horizontal supporting plate 106 through screws, the clamping driving motor 201 is arranged on the test table 9, the rotating shaft of the clamping driving motor 201 is connected with the rotating base 202, the middle position of the group of clamping arms 203 is hinged with the test table 9, the clamping arm clamping driving block 204 is arranged inside the test table 9, the clamping arm clamping driving block 204 is connected with the rotating base 202, and one end of the group of clamping arms 203 is connected with the clamping arm clamping driving block 204.
The upper end of roating seat 202 is equipped with double-screw bolt 205, the upper end of double-screw bolt 205 is equipped with stop screw 206, centre gripping arm centre gripping drive block 204 and double-screw bolt 205 threaded connection, the inside of test table 9 is equipped with cavity 91, be equipped with spacing ring 92 on the inner wall of cavity 91, be equipped with spacing boss 207 on the outer wall of roating seat 202 lower tip, roating seat 202 and centre gripping arm centre gripping drive block 204 set up in cavity 91, the up end of spacing boss 207 contacts with the lower terminal surface of spacing ring 92, the cover is equipped with spring 208 on the roating seat 202, spring 208 is located between the up end of spacing ring 92 and the lower terminal surface of centre gripping arm centre gripping drive block 204.
The cross-section of centre gripping arm centre gripping drive block 204 is circular to be equipped with annular groove 209 on the outer circumference of centre gripping arm centre gripping drive block 204, centre gripping arm 203 is the rectangular plate, and centre gripping arm 203 connects through pivot and test bench 9, the one end of centre gripping arm 203 extends to in cavity 91 to the tip that centre gripping arm 203 extends to cavity 91 sets up in annular groove 209, the tip and the cavity 91 roll connection of centre gripping arm 203, a set of centre gripping arm 203 sets up according to annular array's mode with the center of centre gripping arm centre gripping drive block 204.
The upper end surface of the test bed 9 is provided with a first groove 93 with a circular cross section, the standard Rockwell hardness blocks are arranged in the first groove 93, the test bed 9 is provided with a second groove 94, the second groove 94 is arranged in an annular array mode by taking the center of the clamping arm clamping driving block 204 as the center of a circle, the second groove 94 and the clamping arm 203 are arranged in a one-to-one correspondence mode, the clamping arm 203 is arranged in the second groove 94, the second groove 94 is communicated with the first cavity 91 and the first groove 93, the inner wall of the upper end portion of the clamping arm 203 is located in the first groove 93, one end, close to the clamping arm clamping driving block 204, of the clamping arm 203 is arranged to be a spherical shape, a third groove 210 is arranged at a position, close to the outer circumference of the clamping arm clamping driving block 204, of the clamping arm 203, and the third groove 210 is located on a portion, extending out of the first groove 93, of the clamping arm 203.
Based on the structure, the working method of the Rockwell hardness tester calibrating device based on the indentation depth comprises the following steps:
s1, placing a standard Rockwell hardness block in the first groove 93 of the test bed 9;
s2, starting the clamping driving motor 201, driving the rotating base 202 and the stud 205 to rotate, and descending the clamping arm clamping driving block 204 along the vertical direction of the stud 205 due to the threaded connection of the clamping arm clamping driving block 204 and the stud 205;
s3, the clamping arm clamping driving block 204 moves downwards, so that the clamping arm clamping driving block 204 applies pressure to the spherical part of the clamping arm 203, a group of clamping arms 203 rotate around a rotating shaft between the clamping arm 203 and the test bed 9, and the upper end part of the clamping arm 203 contracts towards the center direction of the test bed 9;
s4, the group of clamping arms 203 synchronously act, and the group of clamping arms 203 contact the standard Rockwell hardness block in the first groove 93 in the gradual shrinkage process until the group of clamping arms 203 are pressed on the outer surface of the standard Rockwell hardness block;
s5, starting the lifting driving motor 101 to drive the lifting driving screw rod 103 to rotate, wherein the lifting driving screw rod 103 is in threaded connection with the lifting driving screw rod sleeve 104, so that the lifting driving screw rod sleeve 104 rises along the vertical direction to reach a set position, and the lifting driving motor 101 stops;
s6, the Rockwell hardness tester body 1 drives the top end connecting block 2 to descend, the force sensor 3, the hardness tester pressure head 5 and the displacement sensor 6 descend synchronously until the hardness tester pressure head 5 contacts the upper surface of the standard Rockwell hardness block to detect hardness, and meanwhile, the force sensor 3 and the displacement sensor 6 collect data through the data output device 7 and analyze the data, so that detection data of load and pressing depth of the Rockwell hardness tester are obtained.
And S7, the standard hardness value and the measured hardness value can be directly displayed after the deformation of the force value sensor, the displacement sensor, the connecting piece and the like is corrected through the depth data obtained from the standard Rockwell hardness block and the system data processing.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the present invention, and these modifications should also be construed as the protection scope of the present invention.
Claims (9)
1. The utility model provides a rockwell hardness tester calibrating installation based on indentation degree of depth which characterized in that: including rockwell hardness tester main part (1), top connecting block (2), force sensor (3), connecting piece (4), hardness tester pressure head (5), displacement sensor (6), data output device (7) and data transmission line (8), top connecting block (2) and rockwell hardness tester main part (1) are connected, force sensor (3) and top connecting block (2) are connected, connecting piece (4) and force sensor (3) are connected, hardness tester pressure head (5) and displacement sensor (6) all fix the setting on connecting piece (4) to rockwell hardness tester main part (1) can drive connecting piece (4) and go up and down along vertical direction, data output device (7) are connected through data transmission line (8) and rockwell hardness tester main part (1).
2. The indentation depth based rockwell hardness tester apparatus according to claim 1, wherein: the precision of the force sensor (3) is 0.3 grade or more; the precision of the displacement sensor (6) is more than 0.2 mu m.
3. The indentation depth based rockwell hardness tester apparatus according to claim 1, wherein: be equipped with test bench (9), test bench lifting unit (10) and test piece centre gripping subassembly (20) on rockwell sclerometer main part (1), test bench lifting unit (10) are fixed to be set up on rockwell sclerometer main part (1), test bench (9) and test bench lifting unit (10) fixed connection to test bench (9) are located sclerometer pressure head (5) under, test piece centre gripping subassembly (20) set up on test bench (9), can place standard rockwell hardness piece on test bench (9), test piece centre gripping subassembly (20) can carry out the centre gripping of standard rockwell hardness piece fixedly.
4. The indentation depth based Rockwell hardness tester assay device of claim 3, wherein: the test table lifting assembly (10) comprises a lifting driving motor (101), a motor supporting seat (102), a lifting driving screw rod (103), a lifting driving screw rod sleeve (104), a supporting sleeve (105) and a horizontal supporting plate (106), wherein the motor supporting seat (102) is fixedly arranged on the Rockwell hardness tester main body (1), the lifting driving motor (101) and the supporting sleeve (105) are fixedly arranged on the motor supporting seat (102), the lifting driving motor (101) is connected with the lifting driving screw rod (103), the lifting driving screw rod sleeve (104) is sleeved on the lifting driving screw rod (103), the lifting driving screw rod sleeve (104) is in threaded connection with the lifting driving screw rod (103), the lower end parts of the motor supporting seat (102) and the lifting driving screw rod sleeve (104) are fixedly connected, and the lifting driving screw rod sleeve (104) is in sliding connection with the supporting sleeve (105), and the upper end part of the lifting driving screw rod sleeve (104) extends out of the supporting sleeve (105), the upper end part of the lifting driving screw rod sleeve (104) extending out of the supporting sleeve (105) is fixedly connected with the horizontal supporting plate (106), and the test table (9) is fixedly arranged on the upper end surface of the horizontal supporting plate (106).
5. The indentation depth based Rockwell hardness tester assay device of claim 4, wherein: go up and down through screw fixedly connected with lift direction slide (107) on the outer wall of lift drive lead screw cover (104), be equipped with a set of vertical guide post (108) between the upper and lower terminal surface of support sleeve (105) inside, be equipped with a set of direction sliding sleeve (109) on lift direction slide (107), a set of direction sliding sleeve (109) and a set of vertical guide post (108) one-to-one set up to vertical guide post (108) and direction sliding sleeve (109) sliding connection.
6. The indentation depth based Rockwell hardness tester assay device of claim 3, wherein: test piece centre gripping subassembly (20) is including centre gripping driving motor (201), roating seat (202), a set of centre gripping arm (203) and centre gripping arm centre gripping drive block (204), test bench (9) pass through the fix with screw setting on the up end of horizontal support board (106), centre gripping driving motor (201) set up on test bench (9) to the pivot and the roating seat (202) of centre gripping driving motor (201) are connected, the intermediate position and the test bench (9) of a set of centre gripping arm (203) are articulated, centre gripping arm centre gripping drive block (204) set up inside test bench (9) to centre gripping arm centre gripping drive block (204) and roating seat (202) are connected, the one end and the centre gripping arm centre gripping drive block (204) of a set of centre gripping arm (203) are connected.
7. The indentation depth based Rockwell hardness tester assay device of claim 6, wherein: the utility model discloses a spacing device, including roating seat (202), double-screw bolt (205), test bench (9), cavity (91), spacing ring (92), be equipped with spacing boss (207) on the outer wall of roating seat (202) lower tip, roating seat (202) and clamping arm centre gripping drive block (204) set up in cavity (91), the up end of spacing boss (207) and the lower terminal surface of spacing ring (92) contact, the cover is equipped with spring (208) on roating seat (202), spring (208) are located between the up end of spacing ring (92) and the lower terminal surface of clamping arm centre gripping drive block (204).
8. The indentation depth based Rockwell hardness tester assay device of claim 7, wherein: the cross-section of centre gripping arm centre gripping drive block (204) is circular to be equipped with annular groove (209) on the outer circumference of centre gripping arm centre gripping drive block (204), centre gripping arm (203) are the right angle board, and centre gripping arm (203) are connected through pivot and test bench (9), the one end of centre gripping arm (203) extends to in cavity (91), and centre gripping arm (203) extend to the tip setting of cavity (91) in annular groove (209), the tip and the cavity (91) roll connection of centre gripping arm (203), a set of centre gripping arm (203) use the center of centre gripping arm centre gripping drive block (204) to set up according to annular array's mode as the centre of a circle.
9. The indentation depth based rockwell hardness tester apparatus according to claim 8, wherein: the upper end surface of the test bed (9) is provided with a first groove (93) with a circular section, the standard Rockwell hardness block is arranged in the first groove (93), the test bed (9) is provided with a group of second grooves (94), the group of second grooves (94) is arranged in an annular array mode by taking the center of the clamping arm clamping driving block (204) as the center of a circle, the group of second grooves (94) and the group of clamping arms (203) are arranged in a one-to-one correspondence mode, the clamping arms (203) are arranged in the second grooves (94), the second grooves (94) are communicated with the first cavity (91) and the first grooves (93), the inner wall of the upper end part of the group of clamping arms (203) is positioned in the first groove (93), one ends of the clamping arms (203) close to the clamping arm clamping driving block (204) are arranged in a spherical mode, and the positions of the clamping arms (203) close to the outer circumference of the clamping arm clamping driving block (204) are provided with third grooves (210), the third groove (210) is located on the portion of the clamping arm (203) extending out of the first groove (93).
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| CN202121618454.7U CN215677943U (en) | 2021-07-16 | 2021-07-16 | Rockwell hardness tester based on indentation depth |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116840093A (en) * | 2023-09-01 | 2023-10-03 | 广东中准检测有限公司 | Calibrating device for precision detector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116840093A (en) * | 2023-09-01 | 2023-10-03 | 广东中准检测有限公司 | Calibrating device for precision detector |
| CN116840093B (en) * | 2023-09-01 | 2023-11-21 | 广东中准检测有限公司 | Calibrating device for precision detector |
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Effective date of registration: 20221114 Address after: 214101 No. 8, Dongting Chunxin East Road, Xishan District, Wuxi City, Jiangsu Province Patentee after: Wuxi inspection and Certification Institute Address before: 214000 No.8 Chunxin East Road, Dongting, Xishan District, Wuxi City, Jiangsu Province Patentee before: WUXI METROLOGY TESTING INSTITUTE |
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