CN115855715A - Anti-wear testing device and testing method thereof - Google Patents

Abstract

The invention discloses an anti-abrasion testing device and a testing method thereof, wherein the anti-abrasion testing device comprises a base, a supporting frame, a sample placing table, a loading mechanism arranged on the supporting frame and a clamp arranged on the loading mechanism; the lofting table and/or the supporting frame are/is arranged on the base in a sliding manner; the loading mechanism comprises a sliding rod and a loading seat; the slide bar is located lofting platform top and vertical direction are slided and are established on the support frame, the load seat is installed on the slide bar, the holder is installed on the slide bar. The invention can improve the abrasion resistance testing efficiency.

Description

Anti-wear testing device and testing method thereof

technical field

The invention belongs to the technical field of clocks and watches, and in particular relates to an anti-wear testing device and a testing method thereof.

Background technique

The watch industry is an advanced manufacturing industry combining high-precision machinery, information technology and high-performance materials. It is not only closely related to people's lives, but also serves in various fields of the national economy for a long time. With the continuous improvement of modern living standards, people are no longer satisfied with the high-precision timing functions brought by clocks and watches. Therefore, modern watches are more about pursuing diversified appearances and the cultural meanings they bring. Metal appearance parts of watches Mainly through the application of complex curved surface or shape design and various appearance colors to enhance the appearance attractiveness, among which various electroplating processes are an important way to achieve diversified appearance colors.

The high-performance and stable gold alloy coating not only enhances the attractiveness of the watch's appearance, but also directly affects the customer's satisfaction during actual wearing and use. However, in the actual application of the gold alloy coating on watch appearance parts, a series of problems will arise due to the customer's use environment and habits, such as corrosion, oxidation, and wear of the gold alloy coating. The more common one is the wear caused by the friction between the gold alloy coating and various organic or inorganic materials, so it is particularly important to detect the wear resistance of the gold alloy coating.

At present, for the detection of the anti-wear performance of the gold alloy coating, wear parts are generally used to rub back and forth on the test part, and then the performance of the test part is judged according to the wear condition of the test part. In the current test method, the wear part and the test part The friction force between the test pieces is relatively fixed, and the test efficiency is low.

Contents of the invention

The object of the present invention is to provide an anti-wear testing device and a testing method thereof, which can improve the efficiency of the anti-wear testing.

The invention provides an anti-wear testing device, comprising a machine base, a support frame, a lofting platform, a loading mechanism installed on the support frame, a holder installed on the loading mechanism; the lofting platform and/or Or the support frame is slid on the base;

The loading mechanism includes a slide bar and a load seat; the slide bar is located above the lofting platform and is vertically slid on the support frame, the load seat is installed on the slide bar, and the clamping The device is mounted on the slide bar.

In some embodiments, the clamper includes a clamp base, a first clamp arm, a second clamp arm, a driving seat, and an adjustment screw; both the first clamp arm and the second clamp arm are rotatably mounted on the clamp On the seat, both the first clamping arm and the second clamping arm have an abutment end and a clamping end;

The clamping seat is connected with the slide bar, the clamping seat has a mounting groove, and the adjusting screw is rotatably installed in the mounting groove;

The driving base is provided with a mounting threaded hole threadedly connected with the adjusting screw, and the abutting end of the first clamping arm and the abutting end of the second clamping arm are both located on the moving path of the driving base, Both the clamping end of the first clamping arm and the clamping end of the second clamping arm are located outside the installation groove.

In some embodiments, the clamper also includes an adjustment dial and a positioning screw; the clamp seat has an adjustment hole and a positioning threaded hole, and both the adjustment hole and the positioning threaded hole communicate with the installation groove, so The adjustment dial is installed on the adjustment screw and rotates coaxially with the adjustment screw, a part of the adjustment dial protrudes from the adjustment hole outside the installation groove, and the positioning screw is installed in the positioning screw hole Inside, the adjusting screw is located on the moving path of the positioning screw.

In some embodiments, the holder also includes a first pressure sensor; the holder also has a rod groove, one end of the slide rod is inserted into the rod groove, and the first pressure sensor is installed on the rod groove. The rod groove is located on the moving path of the slide rod.

In some embodiments, the support frame includes a support rod, a first sliding block slid on the support rod, a guide rod installed on the first sliding block, a connecting rod installed on the guide rod seat; the sliding direction of the first sliding block is the same as that of the sliding bar, the guide bar is connected to the sliding bar through the connecting seat, and the load seat abuts on the connecting seat.

In some embodiments, the support frame further includes a beam and a second sliding block slid on the beam; the sliding rod is slid on the second sliding block and is connected with the second sliding block. The sliding direction is vertical, and the connecting seat is slid on the guide rod along the sliding direction of the second sliding block.

In some embodiments, the anti-wear testing device also includes a guide rail arranged on the base; vertical.

In some embodiments, the anti-wear testing device also includes a motor, a drive turntable mounted on the output shaft of the motor, and a push rod; The drive dial is connected, and the other end of the push rod is connected with the second pressure sensor.

In some embodiments, the lofting platform includes a lofting seat, a clamp arranged on the lofting seat, a mounting shaft, and a first bearing; the guide rail is provided with a slide groove, and the lofting seat is provided with a shaft hole. The installation shaft is installed in the shaft hole, there are multiple shaft holes and the installation shaft, and the plurality of shaft holes are arranged at intervals along the sliding direction of the lofting seat, and the plurality of shaft holes and the plurality of shaft holes The installation shafts correspond to each other one by one, the two ends of each installation shaft are provided with the first bearings, and the first bearings are rolling mounted on the chute of the guide rail.

The present invention also provides a wear test method, comprising the steps of:

Place and fix the wear parts on the set-out table;

Measure and record the weight of the tested piece after cleaning, and use the clamp to clamp the tested piece so that the tested piece is in contact with the worn part;

Drive the lofting table and the support frame to slide relative to each other, and the test piece makes a reciprocating movement relative to the wearing part, and the test piece and the wearing part produce sliding friction;

When the number of reciprocating motions reaches the predetermined number of times, the relative movement between the lofting table and the support frame stops, and the test piece is removed for cleaning and weight measurement, and the weight is recorded;

Repeat the above process e times, and calculate the average mass loss of the test piece after repeating the wear test e times;

Calculate the number of inspections n required when the mass loss of the test piece reaches the set weight according to the average mass loss;

After the detection times n is determined, increase the speed of the relative movement between the stakeout table and the support frame, perform wear tests on other test pieces, and compare the mass loss of the test pieces with the set weight.

The technical solution provided by the present invention has the following advantages and effects:

The invention is provided with a load seat, and by changing the weight of the load seat, the frictional force between the wearing part of the setting-out platform and the test piece on the holder is adjusted to improve the test efficiency. At the same time, after the weight of the load seat and the number of back and forth frictions are determined, the speed of relative movement between each test piece and the wear piece can be increased as required, and the test efficiency of different test pieces can be improved.

Description of drawings

Fig. 1 is the structural representation of antiwear test device;

Fig. 2 is the front view of antiwear testing device;

Fig. 3 is a partial sectional view of the holder structure;

Fig. 4 is a schematic structural view of the holder;

Fig. 5 is a sectional view of a side view of an anti-wear testing device;

Fig. 6 is the sectional view of A-A place of Fig. 5;

Fig. 7 is a schematic structural view of the second sliding block and the connecting shaft;

Fig. 8 is the sectional view of the B-B place of Fig. 5;

Fig. 9 is an enlarged view at C of Fig. 5;

Figure 10 is an exploded view of the stakeout platform, in which the fixture is omitted;

Figure 11 is a sectional view of the first loading state of the stakeout platform;

Figure 12 is a sectional view of the second loading state of the stakeout platform;

Figure 13 is a flowchart of the wear testing method.

Explanation of reference signs:

1. Wear parts; 2. Test parts; 3. Backing plate;

10. Machine base;

20, support frame; 201, support rod; 202, first sliding block; 203, guide rod; 204, connecting seat; 205, beam; 206, second sliding block; 207, anti-off block; 208, second bearing; 209, the first hole; 210, the second hole; 211, the connecting shaft; 212, the first limit plate; 213, the second limit plate; 214, the locking bolt; 215, the limit nut; 216, the groove; 2111, the first step; 2112, the second step;

30, lofting table; 301, lofting seat; 302, fixture; 303, installation shaft; 304, first bearing; 305, shaft hole; 306, second pressure sensor; 307, connecting hole; 309, clamping hole; 3021, Clamping bolt; 3022, clamping strip;

40. Loading mechanism; 401. Slide bar; 402. Load seat;

50, holder; 501, clamp seat; 502, first clamp arm; 503, second clamp arm; 504, driving seat; 505, adjusting screw; 506, pivot; 507, adjusting turntable; 508, positioning screw; 509, the first pressure sensor; 510, the first pin; 511, the second pin; 512, the central block; 5011, the installation groove; 5012, the adjustment hole; 5013, the positioning screw hole; Groove; 5016, the second pin groove; 5121, the central hole; 5051, the ring groove;

60, guide rail; 601, chute;

70. Motor; 71. Governor; 72. Power switch; 73. Start button; 74. Stop button; 75. Reset button; 76. Display controller; 77. Counting sensor; 78. Trigger pin;

80, drive turntable; 81, push rod; 82, cover body; 83, connector.

Detailed ways

The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore It should not be construed as a limitation of the present invention.

In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "communication", "abutment", "clamping" and so on should be used as In a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediary, and it can be two Connectivity within the component. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

Unless specifically stated or otherwise defined, in the description of the invention, it should be understood that the terms "first", "second", etc. are used in the invention to describe various information, but these information should not be limited to these terms, these terms Used only to distinguish information of the same type from one another. For example, "first" information may also be referred to as "second" information without departing from the scope of the invention, and similarly, "second" information may also be referred to as "first" information.

Unless specifically stated or otherwise defined, the term "and/or" used in the present invention includes any and all combinations of one or more of the associated listed items.

For the convenience of description, unless otherwise specified, the up-down direction mentioned below is consistent with the up-down direction of Figure 2 itself, the left-right direction mentioned below is consistent with the left-right direction of Figure 2 itself, and the front-back direction mentioned below is consistent with that of Figure 2 itself The projection direction is the same.

As shown in Fig. 1 to Fig. 4, a kind of anti-wear testing device comprises machine base 10, support frame 20, setting out platform 30, the loading mechanism 40 that is installed on described support frame 20, is installed on described loading mechanism 40 The holder 50. The base 10 is a box, and the lofting platform 30 and/or the support frame 20 are slidably arranged on the base 10. In this embodiment, the lofting platform 30 is slidably arranged on the base 10, The support frame 20 is installed on the base 10 , and the stakeout platform 30 moves relative to the support frame 20 . The clamper 50 is used to clamp the piece to be tested 2 , and the stakeout table 30 is used to fix the wear piece 1 , and the clamper 50 drives the piece to be tested 2 to rub back and forth on the wear piece 1 , so that the piece to be tested 2 is worn. The loading mechanism 40 can apply a certain pressure to the holder 50 according to the demand, so that the frictional force between the wearing part 1 and the test part 2 increases, and the friction of the wearing part 1 and the test part 2 can be adjusted by changing the pressure applied by the loading mechanism 40. Wear speed, increasing the pressure exerted by the loading mechanism 40 can increase the wear speed of the wear part 1 to be tested 2, thereby improving the test efficiency.

The loading mechanism 40 includes a slide bar 401 and a load seat 402 . The slide bar 401 is located above the stakeout platform 30 and is vertically slid on the support frame 20 , and the slide bar 401 is installed slidingly up and down. The load seat 402 is mounted on the slide bar 401 , and the load seat 402 has a certain weight and drives the slide bar 401 to move downward. The holder 50 is installed on the slide bar 401, and the load seat 402 increases the downward pressure of the holder 50, so that the frictional force of the test piece 2 clamped on the holder 50 against the wear piece 1 Increase. The anti-wear testing device changes the frictional force between the wearing part 1 and the test part 2 by changing the weight of the load seat 402 and/or changing the number of the load seat 402 during the test.

Focusing on FIG. 3 and FIG. 4 , in one embodiment, the clamper 50 includes a clamping base 501 , a first clamping arm 502 , a second clamping arm 503 , a driving base 504 , and an adjusting screw 505 . Both the first clamping arm 502 and the second clamping arm 503 are respectively rotatably mounted on the clamping base 501 through a pivot 506, and both the first clamping arm 502 and the second clamping arm 503 have resistance terminal and clamping terminal. The abutting end abuts against the driving base 504 , the clamping end is located below the clamping base 501 , and the clamping end of the first clamping arm 502 and the clamping end of the second clamping arm 503 clamp the test piece 2 together.

The clip seat 501 is connected with the slide bar 401 . The clamp base 501 has a mounting groove 5011, the mounting groove 5011 is opened on the lower end surface of the clamp base 501 and runs through the clamp base 501 horizontally from left to right, the abutment end of the first clamp arm 502 and the abutment of the second clamp arm 503 The end can be moved from the left and right sides of the clamp seat 501 to the outside of the mounting groove 5011, so that the first clamp arm 502 and the second clamp arm 503 have a larger rotation range, and the first clamp arm 502 and the second clamp arm 503 clamp the to-be-tested Piece 2 is more bulky. Both the clamping end of the first clamping arm 502 and the clamping end of the second clamping arm 503 are located outside the installation groove 5011, the clamping end of the first clamping arm 502 and the clamping end of the second clamping arm 503 end protrudes from the lower end of the mounting groove 5011.

The adjustment screw 505 is rotatably installed in the installation groove 5011, and the rotation axis of the adjustment screw 505 is vertically arranged. The driving seat 504 is provided with an installation threaded hole threadedly connected with the adjusting screw rod 505, the driving seat 504 is installed on the adjusting screw rod 505 through the installation threaded hole, and the driving seat 504 moves up and down when the adjusting screw rod 505 rotates. The driving seat 504 is located between the abutting end of the first clamping arm 502 and the abutting end of the second clamping arm 503 and the abutting end of the first clamping arm 502 and the second clamping arm The abutting ends of 503 are all located on the moving path of the driving seat 504. When the driving seat 504 moves downward driven by the adjusting screw 505, the driving seat 504 abuts and pushes the abutting end of the first clamping arm 502 and The abutting end of the second clamping arm 503 makes the abutting end of the first clamping arm 502 and the abutting end of the second clamping arm 503 far away from each other, so that the clamping end of the first clamping arm 502 and the second clamping arm 503 The clamping ends of the two clamp the test piece 2 close to each other.

In one embodiment, both the clamping end of the first clamping arm 502 and the clamping end of the second clamping arm 503 are provided with threaded holes, and bolts can be connected externally to lock the testing piece 2 when clamping the testing piece 2 .

In one embodiment, both the first clamping arm 502 and the second clamping arm 503 are V-shaped, the first clamping arm 502 and the second clamping arm 503 are mirror-symmetrically distributed, and the first clamping arm 502 and the second clamping arm 503 respectively include The first plate body and the second plate body, the first plate body and the second plate body are connected, and the angle between the first plate body and the second plate body is greater than 90 degrees and less than 180 degrees. Preferably, in this embodiment, The included angle between the first plate and the second plate is 120 degrees, the first plate is vertically arranged, the clamping end is located on the first plate, the abutting end is arranged on the second plate, and the second plate The body extends upward along a direction away from the first plate body and extends out of the installation groove 5011 along a direction away from the adjusting screw 505 .

The driving base 504 is in an inverted U shape, and the driving base 504 includes a third plate, a fourth plate, and a fifth plate. The third board, the fourth board, and the fifth board are connected in sequence, the fourth board is provided with mounting threaded holes, the fourth board is arranged horizontally, and the fourth board is all along the line close to the second board and away from the adjusting screw The direction of 505 extends obliquely, the angle between the third board and the fourth board, and the angle between the fourth board and the fifth board are all greater than 90 degrees and less than 180 degrees. Preferably, in this embodiment , the angle between the third board and the fourth board, and the angle between the fourth board and the fifth board are both 120 degrees. When the driving base 504 moves downward, the third board and the fifth board abut against the second board of the first clamping arm 502 and the second board of the second clamping arm 503 respectively.

In one embodiment, the clamper 50 further includes an adjusting dial 507 and a positioning screw 508; the outer peripheral side of the adjusting dial 507 is provided with anti-slip lines. An adjustment hole 5012 and a positioning threaded hole 5013 are provided on the side of the clamp seat 501 . Both the adjustment hole 5012 and the positioning screw hole 5013 communicate with the installation groove 5011, and the adjustment hole 5012 and the positioning screw hole 5013 both extend horizontally. Adjustment holes 5012 are provided on the front and rear sides of the clamp seat 501 . The adjustment dial 507 is mounted on the adjustment screw 505 through the cooperation of the keyway and the key and rotates synchronously with the adjustment screw 505. A part of the outer circumference of the adjustment dial 507 protrudes from the adjustment hole 5012 through the installation. Outside the groove 5011, the adjusting screw 505 is driven to rotate by rotating the adjusting dial 507, so that the driving seat 504 can slide up and down, and the purpose of clamping or releasing the test piece 2 is realized. The positioning screw 508 is installed in the positioning screw hole 5013, and the adjusting screw 505 is located on the moving path of the positioning screw 508. After the first clamping arm 502 and the second clamping arm 503 clamp the test piece 2 , the positioning of the adjusting screw 505 is realized by abutting the positioning screw 508 on the outer circumferential side of the adjusting screw 505, preventing the adjusting screw 505 from rotating, and avoiding the vibration caused by frictional resistance during the test to make the adjusting screw 505 rotate, thereby avoiding the first clamping arm 502 and the second clamping arm 503 release the object 2 to be tested.

In one embodiment, the clip seat 501 is further provided with a first pin slot 5015 communicating with the installation slot 5011 . The first pin 510 is disposed in the first pin slot 5015 . The outer circumferential side ring of the adjusting screw 505 is provided with an annular groove 5051, and one end of the first pin groove 5015 is located in the annular groove 5051, and the first pin groove 5015 can prevent the adjusting screw 505 from sliding up and down while not affecting the rotation of the adjusting screw 505.

In one embodiment, a central block 512 is disposed in the mounting groove 5011 of the clamp base 501 , and the central block 512 is close to the lower end surface of the clamp base 501 . The central block 512 is provided with a central hole 5121 penetrating the central block 512 from top to bottom. The adjusting screw 505 is rotatably installed in the central hole 5121 .

In one embodiment, the holder 50 further includes a first pressure sensor 509; the upper end surface of the holder 501 is provided with a rod groove 5014, the rod groove 5014 is a circular groove, the rod groove 5014 is located above the installation groove 5011 and It is separated from the installation groove 5011. One end of the sliding rod 401 is inserted in the rod groove 5014 , and the first pressure sensor 509 is installed in the rod groove 5014 and located on the moving path of the sliding rod 401 moving downward. During the test, the load seat 402 drives the slide bar 401 to move downward, and the lower end of the slide bar 401 slides down from the bar groove 5014 and squeezes the first pressure sensor 509, and then drives the clip seat 501 to move down. There is a gap of 2 mm to 3 mm between the lower end surface of the slide bar 401 and the first pressure sensor 509 of the clamp. When the clamper 50 clamps the test piece 2, the test piece 2 abuts on the wearing part 1, and the clamp seat 501 When the height changes, the first pressure sensor 509 is lifted up accordingly, and the load seat 402 also drives the slide bar 401 to move downward at the same time, so that the first pressure sensor 509 contacts the lower end surface of the slide bar 401, and the slide bar 401 carries a load Seat 402 will generate a downward pressure load, and at this time the first pressure sensor 509 will be triggered. By acquiring the parameters of the first pressure sensor 509 , the current accurate pressing load can be obtained, and the current pressing load can be adjusted by increasing or decreasing the load.

In one embodiment, the clip seat 501 is further provided with a second pin slot 5016 communicating with the rod slot 5014 . The second pin groove 5016 is a bar-shaped groove, and the bar-shaped groove extends from top to bottom. The outer circumferential side of the slide bar 401 is provided with a second pin 511. The second pin 511 is located in the second pin groove 5016. The second pin 511 The slide bar 401 can slide up and down relative to the clip seat 501 and prevent the clip seat 501 from rotating.

In one embodiment, the total height of the central block 512 and the adjustment hole 5012 in the up-down direction is not more than half of the height of the holder 501, and the radius of the ring groove 5051, the radius of the first pin groove 5015 and the radius of the first pin 510 are consistent. , there will be no excessive gap, preventing the adjustment screw 505 from moving up and down.

As shown in FIGS. 5 to 8 , in one embodiment, the support frame 20 includes a support rod 201 , a first sliding block 202 slid on the support rod 201 , and a first sliding block 202 installed on the first sliding block 202 . The guide rod 203 on the top, the connecting seat 204 installed on the guide rod 203; the support rod 201, the guide rod 203 and the slide rod 401 are all cylinders. The support bar 201 and the slide bar 401 are arranged vertically, the sliding direction of the first sliding block 202 is the same as that of the sliding bar 401 , and both the sliding bar 401 and the first sliding block 202 slide up and down. The guide rod 203 is connected to the sliding rod 401 through the connection seat 204 , and the load seat 402 abuts on the connection seat 204 . There are two support rods 201 , and the two support rods 201 are arranged at intervals on the machine base 10 , and the stakeout platform 30 is arranged between the two support rods 201 . The two support rods 201 are provided with first sliding blocks 202 respectively, and the two ends of the guide rod 203 are respectively connected with the two first sliding blocks 202 by bolts, so as to increase the support and sliding stability of the load seat 402 .

In one embodiment, the connecting seat 204 is provided with a first set of holes and a second set of holes. The extension directions of the first set of holes and the second set of holes are perpendicular to each other. The connecting base 204 is sheathed through the second set of holes and is horizontally slidably mounted on the guide rod 203 . The connecting base 204 is sleeved on the slide bar 401 through the first set of holes, the connecting base 204 is also provided with a jack with the first set of holes, the slide bar 401 is provided with a through hole, and the through hole is located in the first set of holes. The connecting pin passes through the socket and the through hole sequentially so that the sliding bar 401 is connected with the connecting seat 204 . The connecting seat 204 slides between the two first sliding blocks 202 . The two ends of the guide rod 203 are respectively connected to the two first sliding blocks 202 by bolts, and the connecting seat 204 is slidably arranged on the guide rod 203, so that neither the connecting seat 204 nor the sliding rod 401 can rotate, so as to prevent the rotation of the holder 50 from affecting the test. result.

In one embodiment, the support frame 20 further includes a beam 205 and a second sliding block 206 slid on the beam 205 . The beam 205 is arranged on the upper end of the support rod 201 and is located above the stakeout platform 30 , and the second sliding block 206 slides horizontally from left to right. The sliding rod 401 is slidably arranged on the second sliding block 206 and is perpendicular to the sliding direction of the second sliding block 206 , and the connecting seat 204 is slidably arranged on the second sliding block 206 along the sliding direction. On the guide rod 203 , the sliding rod 401 is horizontally slid left and right under the drive of the second sliding block 206 , so that the wear position of the test piece 2 on the wear piece 1 can be adjusted. The stakeout platform 30 slides horizontally back and forth, and the stakeout platform 30 is perpendicular to the sliding direction of the second sliding block 206 .

In one embodiment, the upper end of the slide bar 401 is provided with an anti-off block 207, the second slide block 206 is provided with a U-shaped groove 216, the width and length of the groove 216 are the same as the diameter of the slide bar 401, the second The two sliding blocks 206 abut against the outer surface of the beam 205 and together form a receiving hole, the sliding bar 401 is located in the receiving hole to prevent the sliding bar 401 from shaking. The anti-off block 207 is located above the second sliding block 206 to prevent the sliding bar 401 from breaking away from the second sliding block 206 .

In one embodiment, the second sliding block 206 is slid on the beam 205 through the second bearing 208 . The beam 205 is provided with a first tunnel 209 and a second tunnel 210, the first tunnel 209 and the second tunnel 210 both extend along the horizontal direction, the first tunnel 209 and the second tunnel 210 are connected and arranged in sequence along the front and back direction, the first The width and length of the channel 209 are respectively greater than the width and length of the second channel 210, the second channel 210 is located in the area enclosed by the first channel 209, and the connection between the first channel 209 and the second channel 210 has a limiting inner wall, The diameter of the second bearing 208 is greater than the width or length of the second hole 210 , and the second bearing 208 is rollingly installed in the first hole 209 , and the inner wall of the stopper prevents the second bearing 208 from entering the second hole 210 .

The second sliding block 206 is provided with connecting shafts 211 . There are two connecting shafts 211 arranged at intervals along the sliding direction of the second sliding block 206 . The connecting shafts 211 are provided with second bearings 208 . The connecting shaft 211 passes through the first hole 209 and the second hole 210 in sequence. The groove 216 is located between the two connecting shafts 211, and the sliding bar 401 is more stable when sliding left and right.

In one embodiment, the support frame 20 further includes a first limiting plate 212 , a second limiting plate 213 , locking bolts 214 , and limiting nuts 215 . One end of the connecting shaft 211 is connected to the second sliding block 206 on one side of the beam 205, and the other end of the connecting shaft 211 extends to the other side of the beam 205 through the first hole 209 and the second hole 210 and is provided with a first stop The plate 212, the second limiting plate 213, the first limiting plate 212, and the second limiting plate 213 are sequentially sleeved on the connecting shaft 211 along the direction away from the second sliding block 206, and the first limiting plate 212 abuts against On the side of crossbeam 205, one end of connecting shaft 211 is provided with limit nut 215, prevents first limit plate 212, second limit plate 213 from breaking away from connecting shaft 211, and locking bolt 214 is threaded with second limit plate 213 Connect and abut on the first limiting plate 212, adjust the distance between the first limiting plate 212 and the second limiting plate 213 through the locking bolt 214, so that the first limiting plate 212 and the second sliding block 206 Clamping the beam 205 together, when the second sliding block 206 slides to a proper position, the locking bolt 214 prevents the second sliding block 206 from sliding, improving the accuracy of the test.

In one embodiment, the connecting shaft 211 has a first stepped section 2111 and a second stepped section 2112 . The diameter of the first stepped section 2111 is larger than the diameter of the second stepped section 2112 . The second bearing 208 is sleeved on the first stepped section 2111, the first stepped section 2111 is located in the first hole 209 and the diameter is equal to the width of the first hole 209 in the up and down direction, the second stepped section 2112 is located in the second hole 210 and has a diameter It is equal to the width of the second hole 210 in the vertical direction, so that the sliding of the connecting shaft 211 is more stable. The end of the second stepped section 2112 is provided with an external thread that is threadedly connected with the limit nut 215 .

As shown in FIG. 9 to FIG. 12 , in one embodiment, the anti-wear testing device further includes a guide rail 60 arranged on the machine base 10 ; the guide rail 60 extends from front to back. There are two guide rails 60, and the two guide rails 60 are arranged opposite and parallel to each other. The left and right ends of the lofting platform 30 are slidably installed on the two guide rails 60 respectively. The sliding direction of 401 is vertical.

In one embodiment, the anti-wear testing device further includes a motor 70 , a drive turntable 80 installed on the output shaft of the motor 70 , and a push rod 81 . The output shaft of the motor 70 is vertically arranged, and the driving turntable 80 is installed on the driving turntable 80 and rotates synchronously, and the rotation axis of the drive turntable 80 is vertically arranged. The stakeout table 30 is provided with a second pressure sensor 306 , one end of the push rod 81 is connected to the upper surface of the driving turntable 80 , and the other end of the push rod 81 is connected to the second pressure sensor 306 . The motor 70 drives the lofting table 30 to perform reciprocating linear motion by driving the turntable 80 and the push rod 81 .

In one embodiment, the stakeout stand 30 includes a stakeout base 301 , a clamp 302 disposed on the stakeout base 301 , an installation shaft 303 , and a first bearing 304 . The clamp 302 is arranged on the upper surface of the setting-out seat 301 and is used for clamping the wearing part 1 . The guide rail 60 is provided with a chute 601, the lofting seat 301 is provided with a shaft hole 305, the installation shaft 303 is installed in the shaft hole 305, and the shaft hole 305 and the installation shaft 303 have multiple , a plurality of shaft holes 305 are arranged at intervals along the sliding direction of the lofting seat 301, a plurality of shaft holes 305 correspond to a plurality of installation shafts 303 one by one, and both ends of each installation shaft 303 are The first bearing 304 is provided, and the first bearing 304 is rollingly installed in the slide groove 601 of the guide rail 60 . The lofting seat 301 is located between the first bearings 304 at both ends of the installation shaft 303 .

In one embodiment, the push rod 81 is connected to the second pressure sensor 306 through an L-shaped joint 83 . A connecting hole 307 is opened on the stakeout seat 301 . One end of the second pressure sensor 306 is provided with an extension rod inserted in the connection hole 307 , and the second pressure sensor 306 is connected to the stakeout seat 301 of the stakeout platform 30 through the extension rod. The other end of the second pressure sensor 306 is connected to the L-shaped joint 83 .

Fixture 302 comprises clamping hole 309 that is opened on stakeout seat 301, clamping bolt 3021 that is installed in clamping hole 309, clamping bar 3022; The upper end surface of the lofting seat 301 has an internal thread threaded with the clamping bolt 3021 . The wearing part 1 is clamped between the clamping strip 3022 and the lofting seat 301 by turning the clamping bolt 3021 . Preferably, there are multiple clamping holes 309 , clamping bolts 3021 , and clamping strips 3022 respectively, and the number of clamping holes 309 is the same as the number of clamping bolts 3021 . One end of the clamping strip 3022 is sleeved on one of the clamping bolts 3021 , and the other end of the clamping strip 3022 is sleeved on the other clamping bolt 3021 , and the clamping strip 3022 is locked together by the two clamping bolts 3021 . The front and rear ends of the lofting seat 301 are provided with clamping strips 3022 .

Focus on Fig. 11 and Fig. 12. In one embodiment, the wear part 1 can be directly laid on the lofting seat 301. The width of the wear part 1 does not exceed the distance between the two clamping holes 309 on the upper end surface of the workbench. Too thin wear If the thickness of the piece 1 is less than 2mm, the backing plate 3 can be laid first, and the backing plate 3 is made of fabric materials, such as one to two layers of wool felt. The wearing part 1 is placed on the backing plate 3 to reduce the wear of the lower end surface of the wearing part 1 . When the wear part 1 is made of a hard board or other hard board, the wear part 1 can first cut a step with a height of about 3 mm at the front and rear ends, and place the step of the wear part 1 on the lofting seat 301 and cooperate with the clamping bolt 3021 to tighten it. The wearing part 1 is locked on the lofting seat 301 .

In one embodiment, the driving turntable 80 is provided with a trigger pin 78, and the base 10 is provided with a counting sensor 77 located on the moving path of the trigger pin 78. When the driving turntable 80 rotates once, the trigger pin 78 triggers the counting sensor 77 once. One revolution of the driving turntable 80 represents one reciprocating cycle of the lofting base 301 . Therefore, when the trigger pin 78 contacts the counting sensor 77, the counting sensor 77 can be triggered, which means that the lofting seat 301 completes a linear reciprocating motion. The counting sensor 77 sets the number of reciprocating motions of the lofting seat 301, and the lofting seat 301 reciprocates once to record the number of times. When the number of times set by the counting sensor 77 is reached, the anti-wear testing device stops working.

In one embodiment, the base 10 is provided with a controller, a governor 71 , a power switch 72 , a start button 73 , a stop button 74 , a reset button 75 , and a display controller 76 . The counting sensor 77, the motor 70, the governor 71, the power switch 72, the start button 73, the stop button 74, the reset button 75, the display controller 76, the first A pressure sensor 509 and a second pressure sensor 306 are both electrically connected to the controller.

Turn on the power switch 72, press the start button 73, and the anti-wear testing device starts to operate for testing. The governor 71 is used to adjust the rotating speed of the motor 70, so that when the number of times set by the counting sensor 77 remains unchanged, the reciprocating frequency of the stakeout seat 301 per minute is changed. Press the stop button 74 to stop the current detection work and not reset the current number of reciprocating movements. Therefore, the stop button 74 can play a pause function, so as to realize the observation of the surface wear topography of the test piece 2 halfway. When needing to restart detection work, press start button 73 and get final product. The reset button 75 plays a role of clearing, which can clear the current number of reciprocating movements. The display controller 76 is electrically connected with the first pressure sensor 509 and the second pressure sensor 306, and can display the current pressing load and the push-pull force used when the stakeout seat 301 reciprocates.

In one embodiment, the base 10 is provided with a cover body 82; the cover body 82 is Ω-shaped. The cover body 82 covers the driving turntable 80, the counting sensor, etc., and the cover body 82 is used to protect the driving turntable 80, the counting sensor and other components.

As shown in Figure 13, the wear test method of the wear resistance test device works as follows:

Set parameters a, b, c, d, where a is the material of the wear parts. b is the weight of the load base. c is the number of reciprocating movements of the test piece relative to the wear piece, for example, 1800 times are preset. d is the relative sliding speed of the stakeout table and the support frame, which is to set the initial rotation speed of the motor, for example, set 60r/min.

Use a 316 stainless steel standard piece as the test piece to calibrate the current test parameters, use a precision balance with an accuracy of 0.1 mg to measure the weight of the clean test piece, and record it as M ₁ in g. The wearing part is placed and fixed on the setting-out table, and the clamper is used to clamp the test part, so that the test part abuts against the wearing part.

Adjust the load of the test piece by changing b, keep b constant during the test, and this process can be carried out in any of the aforementioned processes.

Start the anti-wear testing device, the counting sensor, motor, governor, power switch, start button, stop button, the reset button, the display controller, the first pressure sensor, the second pressure sensor, and the controller enter into working state , start the motor, drive the lofting table and the support frame to slide relative to each other, and the test piece moves reciprocatingly relative to the wear piece, and the test piece and the wear piece produce sliding friction.

When c reaches the predetermined number of times, the relative movement of the stakeout table and the support frame stops, and the test piece is removed for cleaning and weight measurement, and the record weight is M ₂ ;

Keep a, b, c, and d consistent, and repeat the above process e times, for example, e=10. Calculate the average mass loss of the test piece after repeating the wear test e times under the current test parameters

单位为mg。The calculation formula is:

The unit is mg.

上述待测试件作为其他待测试件的标准样本。Calculate the number of inspections n required when the mass loss of the test piece reaches the set weight when the parameters a, b, and d remain unchanged; complete the calibration of the wear amount of the test parameters. For example, set the weight as 6mg±1mg,

The above-mentioned pieces to be tested serve as standard samples for other pieces to be tested.

When the detection times n is determined, input the number of reciprocating motions n on the anti-wear testing device, increase the parameter d to perform wear tests on other test pieces, thereby speeding up the detection efficiency, and compare the mass loss of the test piece with the set weight , if the wear of other test pieces exceeds the range of 6mg ± 1mg, it proves that the wear performance of the test piece is different from that of the standard sample.

In addition, during the wear test, multiple parameters among parameters a, b, and d can be changed to improve the detection efficiency, such as increasing the weight of the load seat, and perform the test according to the above method.

The above embodiments are not exhaustive enumerations based on the present invention, and besides this, there may also be many other implementation manners not listed. Any replacements and improvements made on the basis of not violating the concept of the present invention belong to the protection scope of the present invention.

Claims (10)

1. The anti-abrasion testing device is characterized by comprising a machine base, a supporting frame, a lofting table, a loading mechanism arranged on the supporting frame and a clamp holder arranged on the loading mechanism; the lofting table and/or the supporting frame are/is arranged on the base in a sliding manner;

the loading mechanism comprises a sliding rod and a loading seat; the slide bar is located lofting platform top and vertical direction are slided and are established on the support frame, the load seat is installed on the slide bar, the holder is installed on the slide bar.

2. The abrasion resistance testing device according to claim 1, wherein the holder comprises a holder base, a first clamping arm, a second clamping arm, a driving base, an adjusting screw; the first clamping arm and the second clamping arm are rotatably arranged on the clamping seat and are provided with abutting ends and clamping ends;

the clamping seat is connected with the sliding rod, the clamping seat is provided with an installation groove, and the adjusting screw rod is rotatably installed in the installation groove;

the driving seat be equipped with adjusting screw threaded connection's installation screw hole, the butt end of first arm lock with the butt end of second arm lock all is located on the moving path of driving seat, the exposed core of first arm lock with the exposed core of second arm lock all is located outside the mounting groove.

3. The abrasion resistance testing device according to claim 2, wherein the holder further comprises an adjustment dial and a positioning screw; the holder has regulation hole and location screw hole, the regulation hole with location screw hole all with the mounting groove intercommunication, adjust the carousel and install adjusting screw is last and with adjusting screw is coaxial to be rotated, adjust partly follow of carousel the regulation hole stretches out outside the mounting groove, positioning screw installs positioning screw is downthehole, adjusting screw is located on positioning screw's the removal route.

4. The abrasion resistant testing device of claim 2, wherein said holder further comprises a first pressure sensor; the clamping seat is further provided with a rod groove, one end of the sliding rod is inserted into the rod groove, and the first pressure sensor is installed in the rod groove and located on a moving path of the sliding rod.

5. The abrasion resistance testing device according to any one of claims 1 to 4, wherein the support frame comprises a support rod, a first sliding block slidably provided on the support rod, a guide rod mounted on the first sliding block, a connecting seat mounted on the guide rod; the sliding direction of the first sliding block is the same as that of the sliding rod, the guide rod is connected with the sliding rod through the connecting seat, and the load seat is abutted to the connecting seat.

6. The abrasion resistance testing device of claim 5, wherein the support frame further comprises a cross member and a second sliding block slidably disposed on the cross member; the slide bar is arranged on the second slide block in a sliding mode and is perpendicular to the sliding direction of the second slide block, and the connecting seat is arranged on the guide rod in a sliding mode along the sliding direction of the second slide block.

7. The abrasion resistance testing device according to any one of claims 1 to 4, further comprising a guide rail provided on the base; the lofting platform is slidably mounted on the guide rail, and the sliding direction of the lofting platform is perpendicular to the sliding direction of the sliding rod.

8. The abrasion resistance testing device according to claim 7, further comprising a motor, a driving turntable mounted on an output shaft of the motor, a push rod; the lofting table is provided with a second pressure sensor, one end of the push rod is connected with the driving turntable, and the other end of the push rod is connected with the second pressure sensor.

9. The abrasion resistant testing device of claim 7, wherein the loft station comprises a loft base, a fixture disposed on the loft base, a mounting shaft, a first bearing; the guide rail is equipped with the spout, the lofting seat is equipped with the shaft hole, the installation axle is installed in the shaft hole, the shaft hole with the installation axle all has a plurality ofly, and is a plurality of the shaft hole along the slip direction interval of lofting seat is laid, and is a plurality of shaft hole and a plurality of installation axle one-to-one, each the both ends of installation axle all are equipped with first bearing, first bearing roll formula is installed the spout of guide rail.

10. A wear test method, comprising the steps of:

placing and fixing the wear part on a sample placing table;

measuring and recording the weight of the cleaned to-be-tested piece, and clamping the to-be-tested piece by using a clamp holder to enable the to-be-tested piece to be abutted against the worn piece;

the sample placing table and the supporting frame are driven to slide relatively, the to-be-tested piece does cyclic reciprocating motion relative to the abrasion piece, and the to-be-tested piece and the abrasion piece generate sliding friction;

when the number of times of the cyclic reciprocating motion reaches the preset number, stopping the relative motion between the sample placing table and the support frame, taking down the piece to be tested, cleaning and measuring the weight, and recording the weight;

repeating the process for e times, and calculating the average mass loss of the piece to be tested after repeating the abrasion test for e times;

calculating the required detection times n when the mass loss of the piece to be tested reaches the set weight according to the average mass loss;

and after the detection times n are determined, increasing the speed of the relative motion between the sample placing table and the support frame, carrying out abrasion test on other to-be-tested pieces, and comparing the mass loss of the to-be-tested pieces with the set weight.

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