Ceramic product hardness detection device

Abstract

The invention belongs to the technical field of ceramic detection, and discloses a ceramic product hardness detection device, which is technically characterized by comprising a detection table, a plurality of groups of support rods are fixedly mounted on the surface of the detection table, a top plate is fixedly mounted at the top ends of the plurality of groups of support rods, and a bearing plate is slidably mounted on the plurality of groups of support rods; a fixed cylinder is arranged below the bearing plate, a detection column is slidably mounted in the fixed cylinder in the vertical direction, a positioning mechanism matched with the fixed cylinder is arranged on the surface of the bearing plate and comprises a rotating assembly and a translation assembly, and a pressure relief protection mechanism is arranged in the fixed cylinder. The pressure relief protection mechanism comprises a clamping assembly and an adjusting assembly, and the adjusting assembly and the clamping assembly are arranged to be matched with each other, so that the extrusion force of the detection column on the ceramic product is automatically reduced during extrusion detection and excessive extrusion, and the qualified ceramic product can be effectively protected.

Description

Technical Field

[0001] The invention relates to the technical field of ceramic detection, in particular to a device for detecting hardness of ceramic products. Background Art

[0002] Ceramic products can be divided into four categories according to their materials: coarse pottery, fine pottery, semi-porcelain and porcelain; according to the degree of sintering of the green body, they can be divided into porosity, density, glazed and unglazed products. They have the characteristics of high strength, moisture resistance, fire resistance, acid resistance, alkali resistance, frost resistance and non-aging.

[0003] Ceramic products need to be tested for hardness after processing and forming. Currently, hardness testing is mainly done by extruding the ceramics. During the test, a pressure sensor and a spring are usually used in conjunction with each other to extrude the ceramics.

[0004] When using the existing detection method, although an elastic extrusion spring is used, the equipment cannot stop pressurizing in time after the pressure value applied to the ceramic product reaches the qualified standard. The equipment is prone to further squeeze the ceramic product and cause damage to the ceramic product, causing the originally qualified ceramic product to be damaged, and the detection effect is poor. Summary of the invention

[0005] The object of the present invention is to provide a ceramic product hardness detection device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A device for testing the hardness of ceramic products comprises a testing platform, wherein a plurality of groups of support rods are fixedly installed on the surface of the testing platform, a top plate is fixedly installed on the top ends of the plurality of support rods, a bearing plate is slidably installed on the plurality of support rods, a cylinder is fixedly installed on the bottom wall of the top plate, the telescopic end of the cylinder is connected to the bearing plate through a bracket, a fixed cylinder is arranged below the bearing plate, a pad is arranged in the inner cavity of the fixed cylinder, a pressure sensor is fixedly installed on the bottom wall of the pad, a testing column is slidably installed in the fixed cylinder along the vertical direction, the bottom end of the testing column extends to the outside of the fixed cylinder, an extrusion spring is arranged on the surface of the pressure sensor, the telescopic end of the extrusion spring is connected to the top end of the testing column, and a fixed spring which cooperates with the fixed cylinder is arranged on the surface of the bearing plate The positioning mechanism includes a rotating component and a translation component, the translation component is connected to the fixed cylinder, the rotating component is located on the surface of the carrier plate and is connected to the translation component, the rotating component adjusts the position of the fixed cylinder and the detection column under the carrier plate by cooperating with the translation component, a pressure release protection mechanism cooperating with the pad is provided in the fixed cylinder, the pressure release protection mechanism includes a clamping component and an adjusting component, the clamping component is located in the fixed cylinder and is connected to the pad, the clamping component is used to fix the position of the pad in the fixed cylinder, the adjusting component is located on the side wall of the fixed cylinder and is connected to the clamping component, and the adjusting component releases the positioning of the pad in the fixed cylinder by cooperating with the clamping component.

[0007] As a further solution of the present invention: the rotating component includes a mounting hole opened in the middle of the supporting plate, a supporting plate is rotatably installed in the mounting hole, a plurality of first positioning holes located outside the mounting hole and distributed in a circular shape with equal intervals are opened on the surface of the supporting plate, a first positioning rod cooperating with the first positioning hole is rotatably installed on the surface of the supporting plate, and the translation component is located on the surface of the supporting plate and is connected to the fixed cylinder.

[0008] As a further solution of the present invention: the translation assembly includes a slideway opened on the surface of the carrying plate, the slideway is distributed along the diameter direction of the carrying plate, a carrying block is slidably installed in the slideway, the fixed cylinder is fixedly installed on the bottom wall of the carrying block, and a plurality of groups of second positioning holes distributed in parallel and located on the outside of the slideway are opened on the surface of the carrying plate, and a second positioning rod that cooperates with the second positioning hole is rotatably installed on the surface of the carrying block.

[0009] As a further solution of the present invention: the clamping assembly includes a plurality of groups of annularly distributed clamping holes opened on the side wall of the pad, and a plurality of storage holes distributed relatively to the clamping holes opened on the inner wall of the fixed cylinder, a clamping column cooperating with the clamping hole is slidably installed in the storage hole, a positioning spring is fixedly installed in the storage hole, and the telescopic end of the positioning spring is connected to the clamping column.

[0010] As a further solution of the present invention: the adjusting component includes a control cavity located above the storage hole and opened inside the side wall of the fixed cylinder, the control cavity is an annular structure, and a wire groove connected to the storage hole is downwardly opened on the bottom wall of the control cavity, and a pulling rope is fixedly installed on one end of the clamping column located in the storage hole, and the pulling rope passes through the wire groove and extends into the control cavity at one end away from the clamping column and is fixedly installed with a magnetic block, and a fixing ring located above the magnetic block is provided in the control cavity, and the fixing ring is made of magnetic material, and a plurality of groups of vertical holes are downwardly opened on the bottom wall of the control cavity, and a push rod extending into the vertical hole is fixedly installed on the bottom wall of the fixing ring, and a plurality of groups of through holes distributed in parallel are opened on the surface of the push rod in the vertical direction, a connecting groove connected to the vertical hole is opened inwardly on the side wall of the fixed cylinder, a control plate is detachably provided on the outside of the fixed cylinder, and a baffle rod cooperating with the through hole is fixedly installed on the side wall of the control plate, and the baffle rod passes through the through hole and extends to the inner cavity of the fixed cylinder.

[0011] As a further solution of the present invention: a positioning rope is fixedly installed on the side wall of the fixing cylinder, and one end of the positioning rope away from the fixing cylinder is connected to the control panel.

[0012] As a further solution of the present invention: a shielding and protection mechanism cooperating with the detection column is arranged on the outside of the fixed cylinder, and the shielding and protection mechanism includes a protection curtain and a guide component, and the guide component is located on the outside of the fixed cylinder and connected to the protection curtain.

[0013] As a further solution of the present invention: the guide assembly includes a guide ring fixedly installed on the outer side of the fixed cylinder through a support rod, a plurality of sliding rings are sleeved on the surface of the guide ring, the sliding ring is connected to the protective curtain, two groups of guide blocks are sleeved on the surface of the guide ring, the two groups of guide blocks are respectively connected to the two ends of the protective curtain, and the surfaces of the guide blocks and the sliding rings are respectively provided with notches that cooperate with the support rods.

[0014] Compared with the prior art, the beneficial effect of the present invention is that by arranging the rotating component and the translation component to cooperate with each other, the position of the fixed cylinder and the detection column can be conveniently adjusted under the supporting plate, and then the hardness test can be performed on various positions on the surface of the ceramic product, effectively improving the detection effect and detection accuracy.

[0015] By setting the adjustment component and the clamping component to cooperate with each other, the relative positions of the pad, pressure sensor and extrusion spring can be adjusted in real time during the extrusion detection, so as to automatically reduce the extrusion force of the detection column on the ceramic product when excessive extrusion occurs, and effectively protect qualified ceramic products. This solves the problem that the current equipment is prone to further extrusion of ceramic products, thereby causing damage to the ceramic products. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic diagram of the three-dimensional structure of a ceramic product hardness detection device provided in an embodiment of the present invention.

[0017] Figure 2 It is a schematic diagram of the main structure of a ceramic product hardness detection device provided in an embodiment of the present invention.

[0018] Figure 3 The present invention is a schematic diagram of a supporting plate and its connection structure in a ceramic product hardness testing device provided in an embodiment of the present invention.

[0019] Figure 4 The present invention is a schematic diagram of a protective curtain and its connection structure in a ceramic product hardness testing device provided in an embodiment of the present invention.

[0020] Figure 5 The present invention is a schematic diagram of a push rod and its connection structure in a ceramic product hardness detection device provided in an embodiment of the present invention.

[0021] Figure 6 The present invention is a schematic diagram of a fixed cylinder and its connection structure in a ceramic product hardness testing device provided in an embodiment of the present invention.

[0022] Figure 7 for Figure 2 Schematic diagram of the enlarged structure of A.

[0023] Among them: 1-testing table, 11-support rod, 12-top plate, 2-carrying plate, 3-cylinder, 4-fixed cylinder, 41-pad, 42-pressure sensor, 43-extrusion spring, 44-testing column, 5-positioning mechanism, 51-rotating component, 511-mounting hole, 512-carrying plate, 513-first positioning hole, 514-first positioning rod, 52-translation component, 521-slide, 522-carrying block, 523-second positioning hole, 524-second positioning rod, 6-pressure release protection mechanism, 61-clamping component, 611-clip hole, 612-storage hole, 613-positioning spring, 614-clip column, 62-adjustment assembly, 621-control chamber, 622-wire groove, 623-pull rope, 624-magnetic block, 625-fixing ring, 626-vertical hole, 627-push rod, 628-through hole, 629-connecting groove, 630-control board, 6301-blocking rod, 7-positioning rope, 8-shielding protection mechanism, 81-protective curtain, 82-guide assembly, 821-guide ring, 822-sliding ring, 823-guide block. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other. The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0025] like Figure 1 , Figure 2 , Figure 4 , Figure 6 , Figure 7 As shown, it is a structural diagram of a ceramic product hardness testing device provided by an embodiment of the present invention, including a testing platform 1, a plurality of groups of support rods 11 are fixedly installed on the surface of the testing platform 1, a top plate 12 is fixedly installed on the top of the plurality of groups of support rods 11, a bearing plate 2 is slidably installed on the plurality of groups of support rods 11, a cylinder 3 is fixedly installed on the bottom wall of the top plate 12, the telescopic end of the cylinder 3 is connected to the bearing plate 2 through a bracket, a fixed cylinder 4 is arranged below the bearing plate 2, a pad 41 is arranged in the inner cavity of the fixed cylinder 4, a pressure sensor 42 is fixedly installed on the bottom wall of the pad 41, a testing column 44 is slidably installed in the fixed cylinder 4 along the vertical direction, the bottom end of the testing column 44 extends to the outside of the fixed cylinder 4, a compression spring 43 is arranged on the surface of the pressure sensor 42, the telescopic end of the compression spring 43 is connected to the top of the testing column 44, and a spring 43 is arranged on the surface of the bearing plate 2 to be mutually connected with the fixed cylinder 4 The cooperating positioning mechanism 5 comprises a rotating component 51 and a translating component 52, wherein the translating component 52 is connected to the fixed cylinder 4, the rotating component 51 is located on the surface of the supporting plate 2 and is connected to the translating component 52, the rotating component 51 adjusts the position of the fixed cylinder 4 and the detection column 44 under the supporting plate 2 by cooperating with the translating component 52, a pressure release protection mechanism 6 cooperating with the pad 41 is arranged in the fixed cylinder 4, the pressure release protection mechanism 6 comprises a clamping component 61 and an adjusting component 62, the clamping component 61 is located in the fixed cylinder 4 and is connected to the pad 41, the clamping component 61 is used to fix the position of the pad 41 in the fixed cylinder 4, the adjusting component 62 is located on the side wall of the fixed cylinder 4 and is connected to the clamping component 61, the adjusting component 62 releases the positioning of the pad 41 in the fixed cylinder 4 by cooperating with the clamping component 61.

[0026] Initially, the clamping assembly 61 fixes the position of the pad 41 in the fixed cylinder 4, and the pad 41 positions the pressure sensor 42, the extrusion spring 43 and the detection column 44. When the hardness test of the ceramic product is required, the ceramic product is placed on the surface of the detection table 1, and the cylinder 3 pushes the bearing plate 2 to move vertically downward, and the bearing plate 2 drives the fixed cylinder 4 and the detection column 44 to move downward synchronously, and the bottom of the detection column 44 contacts the ceramic product, and the fixed cylinder 4 continues to move downward. At this time, the top of the detection column 44 moves upward in the inner cavity of the fixed cylinder 4. When the detection column 44 continues to move upward in the inner cavity of the fixed cylinder 4, the extrusion spring 43 is continuously compressed. The pressure sensor 42 can detect the extrusion thrust of the detection column 44 in real time, and the detection column 44 squeezes the ceramic product. When the pressure sensor 42 shows that the hardness has reached the qualified standard, the cylinder 3 stops running, and the bearing plate 2 and the fixed cylinder 4 stop moving downward. The cylinder 3 drives the supporting plate 2 and the fixed cylinder 4 to move upward, thereby separating the detection column 44 from the ceramic product. The position of the fixed cylinder 4 and the detection column 44 can be conveniently adjusted under the supporting plate 2 through the cooperation of the rotating component 51 and the translating component 52. At this time, the cylinder 3 pushes the supporting plate 2 downward again, and the bottom end of the detection column 44 contacts with other positions of the ceramic product to detect its hardness. By repeating the same operation many times, the hardness of each position of the ceramic product can be detected.

[0027] The fixed cylinder 4 moves downward and controls the detection column 44 to squeeze the ceramic product. When the pressure sensor 42 shows that the hardness has reached the qualified standard and the cylinder 3 has not stopped running in time, the supporting plate 2 drives the fixed cylinder 4 to continue to move downward. At this time, the adjusting component 62 and the clamping component 61 cooperate with each other, and the restriction on the pad 41 can be released in real time in the inner cavity of the fixed cylinder 4. The extrusion spring 43 pushes the pad 41 and the pressure sensor 42 to move upward in the inner cavity of the fixed cylinder 4. At this time, the extrusion spring 43 and the detection column 44 cooperate with each other, which can timely reduce the squeezing force on the ceramic product, and effectively avoid the excessive downward movement of the fixed cylinder 4 to increase the pressure on the detection column 44, causing the ceramic product to be damaged by pressure.

[0028] like Figure 1 , Figure 3 As shown, as a preferred embodiment of the present invention, the rotating component 51 includes a mounting hole 511 opened in the middle of the supporting plate 2, and a supporting plate 512 is rotatably installed in the mounting hole 511. A plurality of first positioning holes 513 located outside the mounting hole 511 and distributed in a circular shape with equal intervals are opened on the surface of the supporting plate 2. A first positioning rod 514 cooperating with the first positioning hole 513 is rotatably installed on the surface of the supporting plate 512. The translation component 52 is located on the surface of the supporting plate 512 and is connected to the fixed cylinder 4.

[0029] The cylinder 3 pushes the carrying plate 2 to move downward, and the carrying plate 2 drives the carrying plate 512 and the fixed cylinder 4 to move downward synchronously to thereby perform hardness testing on the ceramic product. When the pressure sensor 42 shows that the hardness has reached the qualified standard, the cylinder 3 drives the carrying plate 2 to move upward. After the detection column 44 and the ceramic product are separated from each other, the carrying plate 512 is rotated on the surface of the carrying plate 2, and the carrying plate 512 drives the fixed cylinder 4 to rotate synchronously to thereby adjust the position of the detection column 44. After the detection column 44 moves to another position to be detected, the first positioning rod 514 is inserted into the first positioning hole 513. The first positioning rod 514 cooperates with the first positioning hole 513 to fix the position of the carrying plate 512 on the surface of the carrying plate 2. The cylinder 3 pushes the carrying plate 2 to move downward again, and the carrying plate 2 drives the fixed cylinder 4 and the detection column 44 to move downward synchronously. The detection column 44 can perform hardness testing on another position on the surface of the ceramic product. This is repeated many times, and the surface of the ceramic product can be fully tested for hardness, effectively improving the detection effect and detection accuracy.

[0030] like Figure 1 , Figure 3 , Figure 4 As shown, as a preferred embodiment of the present invention, the translation assembly 52 includes a slideway 521 opened on the surface of the supporting plate 512, and the slideway 521 is distributed along the diameter direction of the supporting plate 512. A supporting block 522 is slidably installed in the slideway 521, and the fixed cylinder 4 is fixedly installed on the bottom wall of the supporting block 522. A plurality of groups of second positioning holes 523 distributed in parallel and located on the outside of the slideway 521 are opened on the surface of the supporting plate 512, and a second positioning rod 524 that cooperates with the second positioning hole 523 is rotatably installed on the surface of the supporting block 522.

[0031] The cylinder 3 drives the supporting plate 2 to move upward. After the detection column 44 and the ceramic product are separated from each other, the supporting plate 512 is rotated on the surface of the supporting plate 2. The supporting plate 512 drives the fixed cylinder 4 to rotate synchronously to adjust the position of the detection column 44, and pushes the supporting block 522 to slide in the slide 521. The supporting block 522 drives the fixed cylinder 4 to move along the diameter direction of the supporting plate 512, and the position of the fixed cylinder 4 and the detection column 44 can be further adjusted. After the fixed cylinder 4 and the detection column 44 are moved to the appropriate position, the second positioning rod 524 is inserted into the second positioning hole 523. The second positioning rod 524 cooperates with the second positioning hole 523, and the position of the supporting block 522 and the fixed cylinder 4 can be conveniently fixed on the surface of the supporting plate 512.

[0032] like Figure 2 , Figure 4 , Figure 6 , Figure 7As shown, as a preferred embodiment of the present invention, the snap-in assembly 61 includes a plurality of groups of snap-in holes 611 distributed in an annular shape and opened on the side wall of the pad 41, and a plurality of groups of receiving holes 612 distributed relatively to the snap-in holes 611 are opened on the inner wall of the fixed cylinder 4, and a snap-in column 614 cooperating with the snap-in hole 611 is slidably installed in the receiving hole 612, and a positioning spring 613 is fixedly installed in the receiving hole 612, and the telescopic end of the positioning spring 613 is connected to the snap-in column 614.

[0033] Initially, the positioning spring 613 applies a thrust to the clamping column 614, and the clamping column 614 is inserted into the clamping hole 611 on the side wall of the pad 41. Multiple groups of clamping columns 614 cooperate with the clamping holes 611, and the position of the pad 41 can be fixed in the fixed cylinder 4, and then the position of the pressure sensor 42 can be fixed. When the ceramic product is subjected to extrusion detection, the pressure sensor 42 can monitor the pressure of the extrusion spring 43 in real time. When the pressure sensor 42 shows that the hardness has reached the qualified standard, and the cylinder 3 does not stop running in time, the bearing plate 2 drives the fixed cylinder 4 to continue to move downward. At this time, the adjustment component 62 controls the clamping column 614 to move toward the storage hole 612. At this time, the clamping column 614 and the clamping hole 611 are separated from each other, and the clamping column 614 releases the support and positioning of the pad 41. At this time, the extrusion spring 43 pushes the pad 41 and the pressure sensor 42 to move upward in the inner cavity of the fixed tube 4. At this time, the extrusion spring 43 reduces the thrust on the detection column 44, and the detection column 44 further reduces the extrusion force on the ceramic product, effectively preventing the fixed tube 4 from moving downward excessively and increasing the pressure on the detection column 44, causing the ceramic product to be damaged by pressure.

[0034] like Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7As shown, as a preferred embodiment of the present invention, the adjustment component 62 includes a control chamber 621 opened inside the side wall of the fixed cylinder 4 and located above the storage hole 612. The control chamber 621 is an annular structure. The bottom wall of the control chamber 621 is downwardly opened with a wire groove 622 connected to the storage hole 612. The end of the clamping column 614 located in the storage hole 612 is fixedly installed with a pulling rope 623. The end of the pulling rope 623 away from the clamping column 614 passes through the wire groove 622 and extends into the control chamber 621 and is fixedly installed with a magnetic block 624. A fixing ring 625 located above the magnetic block 624 is provided in the control chamber 621. The fixing ring 625 is made of magnetic material, and the bottom wall of the control cavity 621 is downwardly provided with a plurality of vertical holes 626. A push rod 627 extending into the vertical hole 626 is fixedly installed on the bottom wall of the fixing ring 625. A plurality of through holes 628 distributed in parallel are opened on the surface of the push rod 627 in the vertical direction. A connecting groove 629 connected to the vertical hole 626 is opened inwardly on the side wall of the fixing cylinder 4. A control panel 630 is detachably provided on the outside of the fixing cylinder 4. A blocking rod 6301 cooperating with the through hole 628 is fixedly installed on the side wall of the control panel 630. The blocking rod 6301 passes through the through hole 628 and extends to the inner cavity of the fixing cylinder 4.

[0035] The detection column 44 moves to a certain depth in the inner cavity of the fixed cylinder 4, at which time the hardness of the ceramic product reaches the qualified standard. When in use, the hand-held control panel 630 is inserted into the through hole 628 on the surface of the push rod 627, and the baffle rod 6301 extends to the inner cavity of the fixed cylinder 4. The baffle rod 6301 is above the top of the detection column 44 when it moves to the qualified standard. When the pressure sensor 42 shows that the hardness has reached the qualified standard and the cylinder 3 does not stop running in time, the supporting plate 2 drives the fixed cylinder 4 to continue to move downward. At this time, the top of the detection column 44 moves upward in the inner cavity of the fixed cylinder 4, and the top of the detection column 44 pushes the blocking rod 6301 to move upward synchronously. The blocking rod 6301 pushes the fixed ring 625 to move upward synchronously in the control cavity 621. The fixed ring 625 and the magnetic block 624 are connected into a whole through magnetic attraction. The fixed ring 625 drives the magnetic block 624 to move upward synchronously in the control cavity 621, and the magnetic block 624 cooperates with the pulling rope 623 to pull the clamping column 614 toward the storage hole 612.

[0036] like Figure 4 As shown, as a preferred embodiment of the present invention, a positioning rope 7 is fixedly installed on the side wall of the fixing tube 4, and one end of the positioning rope 7 away from the fixing tube 4 is connected to the control board 630.

[0037] like Figure 1 , Figure 2 , Figure 4As shown, as a preferred embodiment of the present invention, a shielding and protection mechanism 8 that cooperates with the detection column 44 is provided on the outside of the fixed cylinder 4, and the shielding and protection mechanism 8 includes a protection curtain 81 and a guide component 82, and the guide component 82 is located on the outside of the fixed cylinder 4 and is connected to the protection curtain 81.

[0038] The guide component 82 supports and positions the protective curtain 81 outside the fixed cylinder 4. When the detection column 44 performs extrusion detection on the ceramic product, the guide component 82 controls the protective curtain 81 to surround the outside of the detection column 44 in a ring shape. When the ceramic product is pressed and damaged, the protective curtain 81 can block the flying broken ceramic pieces.

[0039] like Figure 1 , Figure 2 , Figure 4 As shown, as a preferred embodiment of the present invention, the guide assembly 82 includes a guide ring 821 fixedly installed on the outer side of the fixed cylinder 4 through a support rod, a plurality of groups of sliding rings 822 are sleeved on the surface of the guide ring 821, the sliding ring 822 is connected to the protective curtain 81, two groups of guide blocks 823 are sleeved on the surface of the guide ring 821, the two groups of guide blocks 823 are respectively connected to the two ends of the protective curtain 81, and the surfaces of the guide blocks 823 and the sliding ring 822 are respectively provided with notches that cooperate with the support rods.

[0040] Initially, the protective curtain 81 is overlapped on one side of the fixed cylinder 4. When extrusion detection is required, the two sets of guide blocks 823 are pulled to slide relative to each other along the surface of the guide ring 821. The guide blocks 823 and the sliding ring 822 cooperate with each other to control the protective curtain 81 to be ring-shaped around the outside of the detection column 44.

[0041] The working principle of the present invention is: initially, the positioning spring 613 applies a thrust to the clamping column 614, and the clamping column 614 is inserted into the clamping hole 611 on the side wall of the pad 41. Multiple groups of clamping columns 614 cooperate with the clamping holes 611 to fix the position of the pad 41 in the fixing tube 4, and then fix the position of the pressure sensor 42. When it is necessary to test the hardness of ceramic products, the ceramic products are placed on the surface of the testing table 1, and the cylinder 3 pushes the supporting plate 2 to move vertically downward. The supporting plate 2 drives the fixed cylinder 4 and the testing column 44 to move downward synchronously. The bottom end of the testing column 44 contacts the ceramic products, and the fixed cylinder 4 continues to move downward. At this time, the top end of the testing column 44 moves upward in the inner cavity of the fixed cylinder 4. When the testing column 44 continues to move upward in the inner cavity of the fixed cylinder 4, it continuously compresses the extrusion spring 43. The pressure sensor 42 can detect the extrusion thrust of the testing column 44 in real time. The testing column 44 squeezes the ceramic products. When the pressure sensor 42 shows that the hardness has reached the qualified standard, the cylinder 3 stops running, and the supporting plate 2 and the fixed cylinder 4 stop moving downward.

[0042] The cylinder 3 drives the carrying plate 2 and the fixed cylinder 4 to move upward, so that the detection column 44 is separated from the ceramic product, and the carrying plate 512 is rotated on the surface of the carrying plate 2, and the carrying plate 512 drives the fixed cylinder 4 to rotate synchronously to adjust the position of the detection column 44, and the first positioning rod 514 is inserted into the first positioning hole 513, and the first positioning rod 514 cooperates with the first positioning hole 513, and the position of the carrying plate 512 can be fixed on the surface of the carrying plate 2, and the carrying block 522 is pushed to slide in the slide 521, and the carrying block 522 drives the fixed cylinder 4 to move along the diameter direction of the carrying plate 512, and the position of the fixed cylinder 4 and the detection column 44 can be further adjusted. After the fixed cylinder 4 and the detection column 44 are moved to the appropriate position, the second positioning rod 524 is inserted into the second positioning hole 523, and the second positioning rod 524 cooperates with the second positioning hole 523, and the position of the carrying block 522 and the fixed cylinder 4 can be conveniently fixed on the surface of the carrying plate 512. The cylinder 3 pushes the carrying plate 2 downward again, and the bottom end of the detection column 44 contacts other positions of the ceramic product to detect its hardness. The same operation is repeated many times to detect the hardness of various positions of the ceramic product.

[0043] When the pressure sensor 42 shows that the hardness has reached the qualified standard, and the cylinder 3 does not stop running in time, the bearing plate 2 drives the fixed cylinder 4 to continue to move downward. At this time, the top of the detection column 44 moves upward in the inner cavity of the fixed cylinder 4, and the top of the detection column 44 pushes the blocking rod 6301 to move upward synchronously. The blocking rod 6301 pushes the fixed ring 625 to move upward synchronously in the control cavity 621. The fixed ring 625 and the magnetic block 624 are connected as a whole through magnetic attraction. The fixed ring 625 drives the magnetic block 624 to move upward synchronously in the control cavity 621. The magnetic block 624 cooperates with the pulling rope 623 to pull the clamping column 614 to move toward the storage hole 612. The clamping column 614 releases the support and positioning of the pad 41. At this time, the extrusion spring 43 pushes the pad 41 and the pressure sensor 42 to move upward in the inner cavity of the fixed tube 4. At this time, the extrusion spring 43 reduces the thrust on the detection column 44, and the detection column 44 further reduces the extrusion force on the ceramic product, effectively preventing the fixed tube 4 from moving downward excessively and increasing the pressure on the detection column 44, causing the ceramic product to be damaged by pressure.

[0044] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A ceramic product hardness testing device, comprising a testing platform, wherein a plurality of support rods are fixedly mounted on the surface of the testing platform, a top plate is fixedly mounted on the top of the plurality of support rods, a bearing plate is slidably mounted on the plurality of support rods, a cylinder is fixedly mounted on the bottom wall of the top plate, and the telescopic end of the cylinder is connected to the bearing plate through a bracket, characterized in that: A fixed cylinder is arranged below the bearing plate, a pad is arranged in the inner cavity of the fixed cylinder, a pressure sensor is fixedly installed on the bottom wall of the pad, a detection column is slidably installed in the fixed cylinder along the vertical direction, the bottom end of the detection column extends to the outside of the fixed cylinder, an extrusion spring is arranged on the surface of the pressure sensor, and the telescopic end of the extrusion spring is connected to the top of the detection column; The surface of the carrier plate is provided with a positioning mechanism that cooperates with the fixed cylinder, and the positioning mechanism includes a rotating assembly and a translation assembly, the translation assembly is connected to the fixed cylinder, the rotating assembly is located on the surface of the carrier plate and is connected to the translation assembly, and the rotating assembly adjusts the position of the fixed cylinder and the detection column under the carrier plate by cooperating with the translation assembly; A pressure relief protection mechanism cooperating with the backing plate is arranged in the fixed cylinder, and the pressure relief protection mechanism includes a clamping assembly and an adjusting assembly; The clamping assembly is located in the fixed cylinder and connected to the backing plate. The clamping assembly is used to fix the position of the backing plate in the fixed cylinder. The clamping assembly includes a plurality of groups of annularly distributed clamping holes opened on the side wall of the backing plate. The inner side wall of the fixed cylinder is provided with a plurality of groups of receiving holes distributed relative to the clamping holes. A clamping column that cooperates with the clamping hole is slidably installed in the receiving hole. A positioning spring is fixedly installed in the receiving hole. The telescopic end of the positioning spring is connected to the clamping column. The adjusting assembly is located on the side wall of the fixed cylinder and is connected to the clamping assembly. The adjusting assembly releases the positioning of the pad in the fixed cylinder by cooperating with the clamping assembly. The adjusting assembly includes a control cavity located above the receiving hole and opened inside the side wall of the fixed cylinder. The control cavity is an annular structure. The bottom wall of the control cavity is downwardly opened with a wire groove connected to the receiving hole. A pulling rope is fixedly installed at one end of the clamping column located in the receiving hole. The pulling rope extends through the wire groove to the control cavity at one end away from the clamping column and is fixedly installed with a magnetic block. A fixing ring located above the magnetic block is arranged in the control cavity, and the fixing ring is made of magnetic material. A plurality of vertical holes are provided downwardly on the bottom wall of the control cavity, and a push rod extending into the vertical hole is fixedly installed on the bottom wall of the fixing ring. A plurality of through holes distributed in parallel are provided on the surface of the push rod in the vertical direction, and a connecting groove connected to the vertical hole is provided inwardly on the side wall of the fixing cylinder, and a control panel is detachably provided on the outside of the fixing cylinder, and a blocking rod cooperating with the through hole is fixedly installed on the side wall of the control panel, and the blocking rod passes through the through hole and extends to the inner cavity of the fixing cylinder.

2. A ceramic product hardness testing device according to claim 1, characterized in that: The rotating component includes a mounting hole opened in the middle of the supporting plate, a supporting plate is rotatably installed in the mounting hole, a plurality of first positioning holes located outside the mounting hole and distributed in a circular shape with equal spacing are opened on the surface of the supporting plate, a first positioning rod cooperating with the first positioning hole is rotatably installed on the surface of the supporting plate, and the translation component is located on the surface of the supporting plate and is connected to the fixed cylinder.

3. A ceramic product hardness testing device according to claim 2, characterized in that: The translation assembly includes a slideway opened on the surface of the carrying plate, the slideway is distributed along the diameter direction of the carrying plate, a carrying block is slidably installed in the slideway, the fixed cylinder is fixedly installed on the bottom wall of the carrying block, a plurality of groups of second positioning holes distributed in parallel and located on the outside of the slideway are opened on the surface of the carrying plate, and a second positioning rod that cooperates with the second positioning hole is rotatably installed on the surface of the carrying block.

4. A ceramic product hardness testing device according to claim 1, characterized in that: A positioning rope is fixedly installed on the side wall of the fixing cylinder, and one end of the positioning rope away from the fixing cylinder is connected to the control panel.

5. A ceramic product hardness testing device according to claim 1, characterized in that: A shielding and protection mechanism cooperating with the detection column is arranged outside the fixed cylinder, and the shielding and protection mechanism comprises a protection curtain and a guide component. The guide component is located outside the fixed cylinder and connected to the protection curtain.

6. A ceramic product hardness testing device according to claim 5, characterized in that: The guide assembly includes a guide ring fixedly installed on the outside of the fixed cylinder through a support rod, a plurality of sliding rings are sleeved on the surface of the guide ring, the sliding ring is connected to the protective curtain, two groups of guide blocks are sleeved on the surface of the guide ring, the two groups of guide blocks are respectively connected to the two ends of the protective curtain, and the surfaces of the guide blocks and the sliding rings are respectively provided with notches that cooperate with the support rods.

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