Device and method for detecting strength of prepared and formed ceramic

Abstract

The invention relates to the technical field of ceramic detection, in particular to a device and method for detecting the strength of prepared and molded ceramics, and the device comprises a detection box, guide rails are connected to the inner walls of the left and right sides of the detection box, slotted sliding blocks are arranged in the guide rails, and a rectangular-ambulatory-plane lifting plate is connected between the two slotted sliding blocks; a detection head used for impacting the ceramic product is installed in the lifting plate shaped like the Chinese character'hui ', ratchet bars are connected to the inner walls of the front side and the rear side of the guide rail, a front wedge-shaped clamping block and a rear wedge-shaped clamping block matched with the ratchet bars are rotationally connected into a groove of the slotting sliding block, and a supporting spring is connected between the front wedge-shaped clamping block and the rear wedge-shaped clamping block. Through the cooperation of the ratchet bar, the wedge-shaped clamping block and the supporting spring, the slotting sliding block can be automatically locked after the slotting sliding block falls down so as to lock the detection head, and the detection head is prevented from rebounding after the detection head freely falls to impact a ceramic product, so that secondary impact and unnecessary vibration caused by rebounding can be effectively avoided, and the detection efficiency is improved. The accuracy and the reliability of the strength test of the ceramic product can be obviously improved.

Description

Technical Field

[0001] The present invention relates to the technical field of ceramic detection, and in particular to a device and method for detecting the strength of ceramics after they are prepared and formed. Background Art

[0002] Ceramic molding is the process of making ceramic powder into the desired shape through different process methods (such as slip casting, dry pressing, isostatic pressing, injection molding, etc.). Ceramic materials are widely used in aerospace, electronics, medical, automotive industry and other fields due to their excellent physical and chemical properties (such as high hardness, high temperature resistance, corrosion resistance, etc.). However, these applications have put forward strict requirements on the quality of ceramic products, especially their mechanical strength. In order to ensure the reliability and safety of ceramic products in practical applications, they must be tested for strength.

[0003] After searching, a Chinese patent with patent announcement number CN116735385B is found, which is a ceramic product strength detection device and detection method, including a base, a box body is fixedly provided on the top of the base, three detection cavities are opened inside the box body, and a connecting port is opened between two adjacent detection cavities, and a detection platform is provided inside the detection cavity, and a foamed ceramic plate to be detected is placed on the detection platform.

[0004] Although the above patent can detect the strength of the ceramic plate by detecting the collision between the free fall of the ball and the ceramic plate, it still has the following shortcomings in practical application: 1. Lack of a check mechanism for the test ball: After the jaws retract and release the test ball, the test ball is prone to rebound after free fall and hits the ceramic plate. This rebound will affect the accuracy of the strength test of ceramic products, making it impossible to objectively and accurately reflect the actual strength coefficient of ceramic products.

[0005] 2. Replacing test balls of different weights is cumbersome: By switching test balls of different weights to change the force of impacting ceramic products, the impact resistance and strength of ceramic products can be evaluated. However, in actual experimental operations, preparing and storing multiple test balls of different sizes and weights not only increases the complexity of the operation, but also increases the economic cost. Frequent replacement of test balls makes the experimental process cumbersome, and storing a large number of test balls of different specifications also takes up additional storage space, increasing the cost of equipment maintenance and management. Summary of the invention

[0006] The object of the present invention is to provide a device for detecting the strength of ceramics after forming, which can effectively prevent rebound and automatically adjust the impact force.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for testing the strength of ceramics after preparation and forming, comprising a testing box, a transparent box door is hingedly connected to the front side of the testing box, guide rails are connected to the inner walls on the left and right sides of the testing box, a slotted slider is provided in the guide rail, a U-shaped lifting plate is connected between the two slotted sliders, a testing head for impacting ceramic products is installed in the U-shaped lifting plate, an iron frame is connected to the top of the lifting plate, an electromagnet is placed on the top of the iron frame, a pulling member for driving the electromagnet to rise and fall is provided on the top of the testing box, ratchet bars are connected to the inner walls on both sides of the guide rail, two front and rear wedge-shaped blocks matching the ratchet bars are rotatably connected in the groove of the slotted slider, the front and rear two wedge-shaped blocks are V-shaped, a supporting spring is connected between the front and rear two wedge-shaped blocks, a pushing member for pushing the wedge-shaped blocks to rotate inward and disengage from the ratchet bar is provided on the slotted slider, a liquid cavity is provided on the testing head, a liquid pumping mechanism for injecting liquid into the liquid cavity is provided between the testing box and the lifting plate, and a liquid level sensor is installed in the liquid cavity.

[0008] Preferably, the detection head includes a cylinder installed in a U-shaped lifting plate, the internal space of the cylinder is the liquid chamber, an annular groove is opened on the outer wall of the cylinder, a rotating ring is provided in the annular groove, a plurality of detection balls of different sizes are installed on the outer wall of the rotating ring at circumferential intervals, and a driving member for driving the rotating ring to rotate is provided on the outer wall of the cylinder.

[0009] Preferably, the liquid pumping mechanism includes a one-way liquid inlet tube and a one-way liquid outlet tube connected to the cylinder and communicated with the liquid cavity. An infusion pump and a liquid extraction pump are installed on the top of the detection box. The input end of the liquid extraction pump is connected to the liquid extraction tube, and the liquid inlet end of the liquid extraction tube is connected to a docking joint 1 for docking with the one-way liquid outlet tube. The output end of the infusion pump is connected to an injection tube, and the liquid outlet end of the injection tube is connected to a docking joint 2 for docking with the one-way liquid inlet tube.

[0010] Preferably, a supporting plate for supporting ceramic products is rotatably connected to the lower part of the detection box via a rotating shaft, and the left and right ends of the rotating shaft extend outside the detection box. The left and right sides of the rotating shaft are connected to connecting plates located outside the detection box, and a tension spring is connected between the connecting plate and the outer wall of the detection box. A support plate for supporting the supporting plate is connected to the inner wall on the rear side of the detection box to prevent the supporting plate from flipping backwards.

[0011] Preferably, two left and right clamping plates for clamping ceramic products are slidably provided on the supporting plate, and a tension spring is connected between the clamping plates and the supporting plate.

[0012] Preferably, the pulling member comprises an electric winding wheel installed on the top of the detection box, a pulling rope is wound around the electric winding wheel, and the pulling rope is connected to the electromagnet.

[0013] Preferably, the pushing member includes a U-shaped push rod slidably connected to the slotted slider, the U-shaped push rod is located on the outside of the front and rear wedge-shaped blocks, the U-shaped push rod is in contact with the front and rear wedge-shaped blocks, and an electric push rod for driving the U-shaped push rod to rise and fall is installed on the side of the slotted slider facing the detection head. The U-shaped push rod moves upward and pushes the front and rear wedge-shaped blocks to rotate inward and disengage from the ratchet bar.

[0014] Preferably, the driving member comprises a motor mounted on the outer wall of the cylinder, a gear is connected to the output shaft of the motor, a gear ring is connected to the inner wall of the rotating ring, and the gear ring is meshed with the gear.

[0015] Preferably, an elastic cloth cover is sleeved on the outside of the guide rail, the top of the elastic cloth cover is connected to the bottom of the lifting plate, and the bottom of the elastic cloth cover is connected to the lower part of the guide rail to shield and protect the inside of the guide rail.

[0016] A method for testing the strength of ceramics after forming, comprising the following steps: S1, unloading, open the transparent box door, and place the ceramic products on the supporting plate; S2, switch the position of the detection ball, control the motor to work, drive the gear ring to rotate the rotating ring through the gear, so as to switch the position of the detection balls of different sizes on the rotating ring, and select the detection ball of the appropriate size to hit the ceramic product according to the needs; S3, adjusting the weight of the detection head, controlling the infusion pump to inject the liquid into the liquid cavity through the injection tube and the one-way liquid inlet tube, and adjusting the weight of the detection head by adjusting the amount of injected liquid, thereby adjusting the impact force of the detection head; S4, hit the ceramic product, control the electromagnet to cut off the power and release the iron frame, and the slotted slider, lifting plate and detection head will fall down. The detection head will fall freely and collide with the ceramic product to perform strength test on the ceramic product.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the cooperation of the ratchet bar, wedge-shaped block and supporting spring, the slotted slider can be automatically locked after the slotted slider falls, so as to lock the detection head and prevent the detection head from rebounding after hitting the ceramic product in free fall, thereby effectively avoiding the secondary impact and unnecessary vibration caused by the rebound, and thus significantly improving the accuracy and reliability of the strength test of ceramic products.

[0018] 2. By switching the detection balls of different sizes on the detection head to impact the ceramic products, different impact forces can be generated to simulate the stress conditions under various actual working conditions, thereby realizing multi-dimensional strength testing, which can further improve the accuracy and reliability of the strength test of ceramic products.

[0019] 3. Liquid can be injected into the liquid cavity of the test head through the liquid pumping mechanism. By adjusting the amount of injected liquid, the weight of the test head can be flexibly changed to generate impact forces of different sizes, thereby realizing automatic adjustment of the impact force and simulating stress conditions under various actual working conditions, which can further improve the accuracy and reliability of strength testing of ceramic products. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 It is a partial three-dimensional structural schematic diagram of the present invention.

[0022] Figure 3 The figure is a schematic diagram of the connection of the guide rail, the slotted slider, the lifting plate and the detection head of the present invention.

[0023] Figure 4 It is a schematic diagram of the connection between the slotted slider, the wedge-shaped block and the support spring of the present invention.

[0024] Figure 5 It is a schematic diagram of the installation of the pulling member and the liquid pumping mechanism of the present invention.

[0025] Figure 6 It is a schematic diagram of the connection between the one-way liquid inlet pipe, the one-way liquid outlet pipe and the cylinder of the present invention.

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the detection head of the present invention.

[0027] Figure 8 It is a schematic diagram of the exploded three-dimensional structure of the detection head of the present invention.

[0028] Fig. 9 The figure is a schematic diagram of the installation of the components such as the rotating shaft, the supporting plate and the clamping plate of the present invention.

[0029] Fig.10 It is a schematic diagram of installing the elastic cloth cover of the present invention.

[0030] The serial numbers in the figure are: 1-detection box, 2-transparent box door, 3-guide rail, 4-slotted slider, 5-lifting plate, 6-detection head, 60-liquid chamber, 61-cylinder, 62-annular slide, 63-swivel, 64-detection ball, 65-motor, 66-gear, 67-gear ring, 7-iron frame, 8-electromagnet, 91-electric winding wheel, 92-pull rope, 10-ratchet bar, 11-wedge block, 12-support spring, 13-U-shaped push rod, 14-electric push rod, 15-one-way liquid inlet pipe, 151 -vertical pipe, 152-bend pipe, 153-check valve, 16-one-way liquid outlet pipe, 161-vertical pipe, 162-bend pipe, 163-check valve, 17-pumping pipe, 18-joint 1, 19-injection pipe, 20-joint 2, 21-infusion pump, 22-pumping pump, 23-liquid level sensor, 24-rotating shaft, 25-support plate, 26-connecting plate, 27-tension spring, 28-support plate, 29-handle, 30-collection frame, 31-plywood, 32-tension spring, 33-elastic cloth cover. DETAILED DESCRIPTION

[0031] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0032] Example 1 See also Figure 1-Figure 6A device for testing the strength of ceramics after preparation and forming comprises a testing box 1, a transparent box door 2 is hingedly connected to the front side of the testing box 1 by hinges, guide rails 3 are connected to the inner walls on the left and right sides of the testing box 1, a slotted slider 4 is slidably provided in the guide rail 3, a U-shaped lifting plate 5 is connected between the two slotted sliders 4, a testing head 6 for impacting ceramic products is installed in the U-shaped lifting plate 5, an iron frame 7 is connected to the top of the lifting plate 5, an electromagnet 8 is placed on the top of the iron frame 7, a pulling member for driving the electromagnet 8 to rise and fall is provided on the top of the testing box 1, the pulling member comprises an electric winding wheel 91 installed on the top of the testing box 1, a pull rope 92 is wound around the electric winding wheel 91, and the pull rope 92 is connected to the electromagnet 8, ratchet bars 10 are connected to the inner walls on the front and rear sides of the guide rail 3, and two front and rear wedge-shaped blocks 11 matching the ratchet bars 10 are rotatably connected in the groove of the slotted slider 4, and the front and rear two wedge-shaped blocks 11 are facing away from each other One side of the slotted slider 4 is an inclined surface, and the top of the wedge-shaped card block 11 is a plane. The front and rear wedge-shaped card blocks 11 are V-shaped. A supporting spring 12 is connected between the front and rear wedge-shaped card blocks 11, which is used to drive the wedge-shaped card block 11 to be clamped into the ratchet bar 10 on the same side thereof. A pushing member is provided on the slotted slider 4, which is used to push the front and rear wedge-shaped card blocks 11 to rotate inward and disengage from the ratchet bar 10. The pushing member includes a U-shaped push rod 13 slidably connected to the slotted slider 4 through a slide groove. The U-shaped push rod 13 is located on the outside of the front and rear wedge-shaped card blocks 11, and the U-shaped push rod 13 contacts the front and rear wedge-shaped card blocks 11. An electric push rod 14 is installed on the side of the slotted slider 4 facing the detection head 6, and the telescopic rod of the electric push rod 14 is connected to the U-shaped push rod 13. A liquid cavity 60 is provided on the detection head 6, and a liquid pumping mechanism for injecting liquid into the liquid cavity 60 is provided between the detection box 1 and the lifting plate 5, and a liquid level sensor 23 is installed in the liquid cavity 60.

[0033] See also Figure 6-Figure 8 The detection head 6 includes a cylinder 61 installed in the U-shaped lifting plate 5, the internal space of the cylinder 61 is the liquid chamber 60, an annular groove 62 is opened on the outer wall of the cylinder 61, a swivel 63 is slidably arranged in the annular groove 62, six detection balls 64 of different sizes are installed on the outer wall of the swivel 63 at intervals along the circumferential direction, a driving member for driving the swivel 63 to rotate is provided on the upper part of the front outer wall of the cylinder 61, the driving member includes a motor 65 installed on the upper part of the front outer wall of the cylinder 61, a gear 66 is connected to the output shaft of the motor 65, a receiving chamber for accommodating the gear 66 is provided on the upper front part of the outer wall of the cylinder 61, the receiving chamber is connected to the annular groove 62, and the receiving chamber is not connected to the liquid chamber 60 to avoid liquid leakage, and a gear ring 67 is connected to the front side of the inner wall of the swivel 63, and the gear ring 67 is meshed with the gear 66.

[0034] See also Figure 5-Figure 6The liquid pumping mechanism includes a one-way liquid inlet pipe 15 and a one-way liquid outlet pipe 16 connected to the cylinder 61 and communicating with the liquid chamber 60. The one-way liquid inlet pipe 15 includes a stand pipe 151, a bend pipe 152 and a one-way valve 153. The bend pipe 152 is connected to the front side of the cylinder 61, the stand pipe 151 is connected to the liquid inlet end of the bend pipe 152, and the stand pipe 151 is fixedly connected to the top right side of the lifting plate 5. The one-way valve 153 is installed on the stand pipe 151. The one-way valve 153 can only flow liquid in one direction to avoid the liquid in the stand pipe 151 from overflowing and wasting. The one-way liquid outlet pipe 16 includes a stand pipe 161, a bend pipe 162 and a check valve 163. The bend pipe 162 is connected to the rear side of the cylinder 61, the stand pipe 161 is connected to the liquid outlet end of the bend pipe 162, the stand pipe 161 is fixedly connected to the top left side of the lifting plate 5, and the check valve 163 is installed On the vertical pipe 161, the check valve 163 can only discharge liquid in one direction to prevent the liquid in the vertical pipe 161 from overflowing and wasting. An infusion pump 21 located on the right side of the electric winding wheel 91 is installed on the top of the detection box 1, and a liquid extraction pump 22 located on the left side of the electric winding wheel 91 is installed on the top of the detection box 1. The input end of the liquid extraction pump 22 is connected to the liquid extraction tube 17, and the liquid inlet end of the liquid extraction tube 17 is connected to the docking joint 18. The vertical pipe 161 of the one-way liquid outlet pipe 16 is moved up and inserted into the docking joint 18 to communicate with the liquid extraction tube 17. The output end of the infusion pump 21 is connected to the injection tube 19, and the liquid outlet end of the injection tube 19 is connected to the docking joint 20. The vertical pipe 151 of the one-way liquid inlet pipe 15 is moved up and inserted into the docking joint 20 to communicate with the injection tube 19. Sealing rings are provided in the docking joints 18 and 20 to achieve sealed docking and prevent leakage.

[0035] First open the transparent box door 2, then put the support table for supporting ceramic products into the test box 1, then place the ceramic products to be tested on the support table, and then close the transparent box door 2. Then control the electromagnet 8 to cut off the power and release the iron frame 7. Under the action of gravity, the slotted slider 4, the lifting plate 5 and the detection head 6 fall down. The detection head 6 falls freely and collides with the ceramic products to achieve the strength test of the ceramic products. If the ceramic products are broken, it means that the strength is unqualified. The slotted slider 4 moves downward and drives the wedge block 11 to move downward. The wedge block 11 is squeezed inward by the ratchet on the ratchet bar 10, and the support spring 12 is compressed to ensure that the slotted slider 4 can fall smoothly to perform the strength test of the ceramic products. When the top of the wedge-shaped block 11 is aligned with the tooth groove of the ratchet bar 10, under the resetting action of the support spring 12, the front and rear wedge-shaped blocks 11 are pushed to rotate outward and inserted into the tooth groove of the ratchet bar 10, and the wedge-shaped block 11 is locked by the ratchet bar 10 to prevent the wedge-shaped block 11 from moving up, thereby locking the slotted slider 4, and finally locking the detection head 6 to prevent the detection head 6 from rebounding after free falling and hitting the ceramic product, which can effectively avoid secondary impact and unnecessary vibration caused by rebound, thereby significantly improving the accuracy and reliability of ceramic product strength testing.

[0036] The electric push rod 14 is controlled to drive the U-shaped push rod 13 upward, and the U-shaped push rod 13 moves upward to push the front and rear wedge-shaped blocks 11 to rotate inward and disengage from the ratchet bar 10, compressing the support spring 12 to release the lock on the slotted slider 4, and then the electric wire winding wheel 91 is controlled to rotate to release the pull rope 92, and the electromagnet 8 moves downward to contact the iron frame 7 under the action of gravity, and then the electromagnet 8 is controlled to be energized to generate magnetic force and firmly absorb the iron frame 7, and then the electric wire winding wheel 91 is controlled to reverse and rewind the pull rope 92 to pull the electromagnet 8 upward, and the electromagnet 8 moves upward to drive the iron frame 7 upward, so that the lifting plate 5 drives the slotted slider 4 and the detection head 6 to move upward and reset. Then the electric push rod 14 is controlled to drive the U-shaped push rod 13 downward, and under the reset action of the support spring 12, the front and rear wedge-shaped blocks 11 are pushed to rotate outward and reset, and then the next round of ceramic product strength detection operation can be carried out.

[0037] The control motor 65 drives the gear 66 to rotate. Through the meshing action of the gear 66 and the ring gear 67, the ring gear 67 drives the rotating ring 63 to rotate, so as to switch the positions of the detection balls 64 of different sizes on the rotating ring 63, thereby allowing detection balls 64 of different sizes to be selected to impact the ceramic product as needed. Due to the size difference of each detection ball 64, when impacting the ceramic product, different impact forces will be generated, which can simulate the stress conditions under various actual working conditions, thereby realizing multi-dimensional strength testing, and further improving the accuracy and reliability of the strength test of ceramic products.

[0038] The infusion pump 21 and the suction pump 22 are connected to the external pipeline, and the infusion pump 21 is controlled to work so that the liquid (liquid refers to non-Newtonian fluid, which is in solid state at the moment of impact and in liquid state at ordinary times) can be injected into the liquid cavity 60 through the injection pipe 19 and the one-way liquid inlet pipe 15. The liquid level sensor 23 monitors the liquid level height in the liquid cavity 60 in real time, and sends a signal to the controller when the liquid level reaches the preset value. The controller is not shown in the figure. The controller is a prior art and will not be repeated here. After receiving the signal, the controller immediately controls the infusion pump 21 to stop working. A plurality of preset values ​​of different sizes can be set according to actual needs. After the liquid is injected into the liquid cavity 60, the total gravity of the detection head 6 is increased. Since the density and volume of the liquid are known, the weight of the injected liquid can be accurately calculated by calculating the liquid level height, and the weight of the injected liquid is calculated by the background terminal. By adjusting the amount of injected liquid, the weight of the detection head 6 can be flexibly changed, thereby generating impact forces of different sizes, thereby realizing the automatic adjustment of the impact force size, simulating the stress conditions under various actual working conditions, and further improving the accuracy and reliability of the strength test of ceramic products. By controlling the liquid extraction pump 22 to work, the liquid in the liquid chamber 60 can be extracted outward through the one-way liquid outlet pipe 16 and the liquid extraction pipe 17 .

[0039] Example 2 Based on Example 1, please refer to Figure 2 and Fig. 9 A rotating shaft 24 is rotatably connected to the lower part of the detection box 1, and a supporting plate 25 located in the detection box 1 is connected to the rotating shaft 24. The supporting plate 25 is used to support ceramic products. The left and right ends of the rotating shaft 24 extend to the outside of the detection box 1. The left and right sides of the rotating shaft 24 are connected to connecting plates 26 located outside the detection box 1. A tension spring 27 is connected between the connecting plate 26 and the outer wall of the detection box 1. A supporting plate 28 located on the lower side of the supporting plate 25 is connected to the inner wall of the rear side of the detection box 1. The supporting plate 28 is used to support the supporting plate 25 to prevent the supporting plate 25 from flipping backwards. Handles 29 are connected to the left and right ends of the rotating shaft 24. The handles 29 are used to rotate the rotating shaft 24. A collecting frame 30 for collecting ceramic fragments is placed at the bottom of the inner side of the detection box 1.

[0040] The ceramic product to be tested is placed on the support plate 25. The support plate 28 can support the support plate 25 to prevent the support plate 25 from flipping backward. The tension spring 27 can pull the connecting plate 26 to prevent the connecting plate 26 from flipping forward, so that the rotating shaft 24 can be pulled to prevent the support plate 25 from flipping forward. In this way, the support plate 25 can be stably maintained in a horizontal state, so that the ceramic product can be stably supported for strength testing. If the ceramic product is smashed by the detection head 6 and the ceramic fragments need to be cleaned, the handle 29 is directly turned forward to drive the rotating shaft 24 to drive the support plate 25 and the connecting plate 26 to flip forward, and the tension spring 27 is stretched accordingly, and the support plate 25 flips forward to directly pour the ceramic fragments on it into the collection frame 30 for collection, so as to facilitate the cleaning of the ceramic fragments. Release the handle 29, under the reset action of the tension spring 27, pull the connecting plate 26 to flip backward and reset, so that the rotating shaft 24 drives the support plate 25 to rotate back to a horizontal state.

[0041] See also Fig. 9 There are two guide grooves symmetrically opened on the left and right sides of the supporting plate 25. A clamping plate 31 is slidably provided between the two guide grooves on the left and between the two guide grooves on the right. The clamping plate 31 is used to clamp ceramic products. The clamping plate 31 includes a clamping plate and two L-shaped rods respectively connected to the front and rear sides of the clamping plate. The L-shaped rod is slidably connected in the guide groove. The clamping plate is located on the upper side of the supporting plate 25. A tension spring 32 is sleeved on the L-shaped rod. The two ends of the tension spring 32 are respectively connected to the L-shaped rod and the supporting plate 25. The tension spring 32 provides clamping force to ensure that the clamping plate 31 can firmly clamp the ceramic products to avoid the displacement of the ceramic products affecting the strength detection operation.

[0042] See also Fig.10 An elastic cloth cover 33 is sleeved on the outside of the guide rail 3, the top of the elastic cloth cover 33 is connected to the bottom of the lifting plate 5, and the bottom of the elastic cloth cover 33 is connected to the lower part of the guide rail 3 to shield and protect the inside of the guide rail 3, thereby preventing ceramic fragments from splashing into the inside of the guide rail 3 and affecting the normal lifting movement of the slotted slider 4.

[0043] A method for testing the strength of ceramics after forming, comprising the following steps: S1, unloading, opening the transparent box door 2, placing the ceramic product on the supporting plate 25; S2, switch the position of the detection ball 64, control the motor 65 to work, drive the gear ring 67 to drive the rotating ring 63 to rotate through the gear 66, so as to switch the position of the detection balls 64 of different sizes on the rotating ring 63, and select the detection ball 64 of the appropriate size to hit the ceramic product according to the needs; S3, adjusting the weight of the detection head 6, controlling the infusion pump 21 to inject the liquid into the liquid cavity 60 through the injection tube 19 and the one-way liquid inlet tube 15, and adjusting the weight of the detection head 6 by adjusting the amount of injected liquid, thereby adjusting the impact force of the detection head 6; S4, hit the ceramic product, control the electromagnet 8 to cut off the power and release the iron frame 7, the slotted slider 4, the lifting plate 5 and the detection head 6 fall down, the detection head 6 falls freely and collides with the ceramic product, and the strength of the ceramic product is tested.

[0044] The above-mentioned embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those skilled in the art, several modifications, improvements and substitutions can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims

1. A device for testing the strength of ceramics after forming, comprising a testing box (1), wherein a transparent box door (2) is hingedly connected to the front side of the testing box (1), characterized in that: The inner walls on the left and right sides of the detection box (1) are connected to guide rails (3), a slotted slider (4) is provided in the guide rails (3), a U-shaped lifting plate (5) is connected between the two slotted sliders (4), a detection head (6) for striking the ceramic product is installed in the U-shaped lifting plate (5), an iron frame (7) is connected to the top of the lifting plate (5), an electromagnet (8) is placed on the top of the iron frame (7), a pulling member for driving the electromagnet (8) to move up and down is provided on the top of the detection box (1), ratchet bars (10) are connected to the inner walls on the front and rear sides of the guide rails (3), the slots of the slotted sliders (4) are connected to the ratchet bars (10), and the slots of the slotted sliders (4) are connected to the ratchet bars (10). Two front and rear wedge-shaped blocks (11) matching the ratchet bar (10) are connected in an inner rotational manner, the front and rear wedge-shaped blocks (11) are in a V shape, a support spring (12) is connected between the front and rear wedge-shaped blocks (11), a pushing member for pushing the wedge-shaped blocks (11) to rotate inwardly and disengage from the ratchet bar (10) is provided on the slotted slider (4), a liquid cavity (60) is provided on the detection head (6), a liquid pumping mechanism for injecting liquid into the liquid cavity (60) is provided between the detection box (1) and the lifting plate (5), and a liquid level sensor (23) is installed in the liquid cavity (60).

2. A ceramic strength detection device after forming according to claim 1, characterized in that: The detection head (6) comprises a cylinder (61) installed in a U-shaped lifting plate (5), the internal space of the cylinder (61) is a liquid chamber (60), an annular groove (62) is formed on the outer wall of the cylinder (61), a rotating ring (63) is arranged in the annular groove (62), a plurality of detection balls (64) of different sizes are arranged at intervals along the circumferential direction on the outer wall of the rotating ring (63), and a driving member for driving the rotating ring (63) to rotate is arranged on the outer wall of the cylinder (61).

3. A ceramic strength detection device after forming according to claim 2, characterized in that: The liquid pumping mechanism comprises a one-way liquid inlet pipe (15) and a one-way liquid outlet pipe (16) connected to the cylinder (61) and communicating with the liquid cavity (60); an infusion pump (21) and a liquid extraction pump (22) are installed on the top of the detection box (1); the input end of the liquid extraction pump (22) is connected to the liquid extraction pipe (17); the liquid inlet end of the liquid extraction pipe (17) is connected to a first docking joint (18) for docking with the one-way liquid outlet pipe (16); the output end of the infusion pump (21) is connected to an injection pipe (19); the liquid outlet end of the injection pipe (19) is connected to a second docking joint (20) for docking with the one-way liquid inlet pipe (15).

4. A ceramic strength detection device after forming according to claim 3, characterized in that: A support plate (25) for supporting ceramic products is rotatably connected to the lower inner portion of the detection box (1) via a rotating shaft (24); left and right ends of the rotating shaft (24) extend outside the detection box (1); both left and right sides of the rotating shaft (24) are connected to connecting plates (26) located outside the detection box (1); a tension spring (27) is connected between the connecting plate (26) and the outer wall of the detection box (1); and a support plate (28) for supporting the support plate (25) is connected to the inner wall at the rear side of the detection box (1) to prevent the support plate (25) from flipping backwards.

5. A ceramic strength detection device after forming according to claim 4, characterized in that: Two left and right clamping plates (31) for clamping ceramic products are slidably provided on the supporting plate (25), and a tension spring (32) is connected between the clamping plates (31) and the supporting plate (25).

6. A ceramic strength detection device after forming according to claim 5, characterized in that: The pulling member comprises an electric winding wheel (91) mounted on the top of the detection box (1), a pulling rope (92) is wound around the electric winding wheel (91), and the pulling rope (92) is connected to the electromagnet (8).

7. A ceramic strength detection device after forming according to claim 6, characterized in that: The push member comprises a U-shaped push rod (13) slidably connected to the slotted slider (4), the U-shaped push rod (13) being located outside the front and rear wedge-shaped blocks (11), the U-shaped push rod (13) being in contact with the front and rear wedge-shaped blocks (11), and an electric push rod (14) for driving the U-shaped push rod (13) to move up and down is installed on a side of the slotted slider (4) facing the detection head (6), the U-shaped push rod (13) moves upward to push the front and rear wedge-shaped blocks (11) to rotate inward and disengage from the ratchet bar (10).

8. A ceramic strength detection device after forming according to claim 7, characterized in that: The driving member comprises a motor (65) mounted on the outer wall of the cylinder (61); a gear (66) is connected to the output shaft of the motor (65); a gear ring (67) is connected to the inner wall of the rotating ring (63); and the gear ring (67) is meshed with the gear (66).

9. A ceramic strength detection device after forming according to claim 8, characterized in that: The guide rail (3) is covered with an elastic cloth cover (33) on the outside, the top of the elastic cloth cover (33) is connected to the bottom of the lifting plate (5), and the bottom of the elastic cloth cover (33) is connected to the lower part of the guide rail (3) to shield and protect the inside of the guide rail (3).

10. A method for testing the strength of ceramics after forming, based on the device for testing the strength of ceramics after forming according to claim 9, characterized in that: The following steps are involved: S1, unloading, opening the transparent box door (2), and placing the ceramic product on the supporting plate (25); S2, switching the position of the detection ball (64), controlling the motor (65) to work, driving the gear ring (67) to drive the rotating ring (63) to rotate through the gear (66), so as to switch the positions of the detection balls (64) of different sizes on the rotating ring (63), and selecting the detection ball (64) of the appropriate size to hit the ceramic product according to the needs; S3, adjusting the weight of the detection head (6), controlling the infusion pump (21) to inject liquid into the liquid cavity (60) through the injection tube (19) and the one-way liquid inlet tube (15), and adjusting the weight of the detection head (6) by adjusting the amount of injected liquid, thereby adjusting the impact force of the detection head (6); S4, impacting the ceramic product, the control electromagnet (8) is powered off to release the iron frame (7), and the slotted slider (4), the lifting plate (5) and the detection head (6) fall down accordingly, and the detection head (6) freely falls and collides with the ceramic product, so as to perform strength test on the ceramic product.

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