A shield scraper brazing weld strength testing device

Abstract

The present invention relates to the technical field of shield cutters, and in particular to a shield scraper brazing weld strength detection device. The present invention solves the problem that the shield scraper is easily damaged when testing the blade strength. In order to solve the above problem, a base; a cutter body, the cutter body is fixedly connected to the base, and a blade mounting position is provided on the cutter body; a blade, the blade is installed in the blade mounting position, and the blade is provided with a force-bearing surface; a detection device, the detection device is located on the side of the blade away from the base, the detection device includes a pressure portion, the pressure portion is provided with a second inclined surface, the detection device can move relative to the blade, and the force-bearing surface is in contact with the second inclined surface through the movement.

Description

Technical Field

[0001] The present invention relates to the technical field of shield cutters, in particular to a shield scraper brazing weld strength detection device. Background Art

[0002] The shield cutter is a tunneling tool used in shield machine tunneling projects. Existing shield scrapers use brazed carbide blocks to increase wear resistance, and the brazing performance of the welded carbide blocks determines the performance of the shield scraper. In engineering, the carbide blocks usually fall off, resulting in the need to replace the blade. Therefore, the strength of the blade needs to be tested regularly. In related technologies, the shield scraper needs to be cut open and the weld seam observed to determine the strength of the blade. However, this detection method causes greater damage to the shield cutter. Therefore, it is very necessary to provide a device for non-destructive testing of the strength of the shield cutter. Summary of the Invention

[0003] The present invention solves the problem that a shield scraper is easily damaged when testing the blade strength.

[0004] To solve the above problems, a base is provided; a blade body is fixedly connected to the base, and a blade mounting position is provided on the blade body; a blade is installed in the blade mounting position, and the blade is provided with a force-bearing surface; a detection device is located on the side of the blade away from the base, the detection device includes a pressure-applying part, and a second inclined surface is provided on the pressure-applying part, the detection device can move relative to the blade, and the force-bearing surface contacts the second inclined surface through the movement.

[0005] Compared with the existing technology, the technical effects achieved by adopting this technical solution are: the setting of the blade mounting position makes the placement of the blade more stable, and the setting of the second inclined surface and the force-bearing surface allows the strength of the blade to be tested through the pressure applied by the pressure-applying part. There is no need to cut the shield scraper to observe the size of the weld, which increases the efficiency of blade detection and reduces damage to the shield scraper.

[0006] In one embodiment of the present invention, a sliding groove is provided on the base, and the detection device also includes: a placement block, which is arranged in the sliding groove and can slide along the sliding groove; the placement block includes a first inclined surface and a second inclined surface relative to each other, and the side of the blade body close to the base is arranged between the first inclined surface and the second inclined surface, and the side of the second inclined surface close to the base is provided with a groove, and at least part of the blade body enters the interior of the groove.

[0007] Compared with the existing technology, the technical effects achieved by adopting this technical solution are: the setting of the placement block makes the placement of the cutter body more convenient, the setting of the first inclined surface has a preliminary restriction on the placement angle of the cutter body, the setting of the groove makes it difficult for the cutter body to move on the placement block, and the placement block can drive the cutter body to move on the slide groove, which is convenient for confirming the pressure direction of the pressure part and improves work efficiency.

[0008] In one embodiment of the present invention, the placement block also includes a third inclined surface, which is connected to the first inclined surface, and the detection device also includes: a first pad, which is arranged between the first inclined surface and the blade body; a gasket, which is in contact with the third inclined surface, and the blade body is in contact with the gasket at one end close to the base.

[0009] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: the setting of the first pad can adjust the angle between the blade body and the base, so that the blade body can cope with different pressure conditions, while also reducing the pressure of the blade body on the placement block. The setting of the gasket avoids the contact between the bottom of the blade body and the bottom of the first pad and the placement block respectively, ensuring that the pressure part will not damage the placement block due to excessive pressure when applying pressure, reducing the loss of the placement block and extending its service life.

[0010] In one embodiment of the present invention, the detection device also includes: a second pad, the second pad is arranged between the blade body and the second inclined surface, one side of the second pad is in contact with the second inclined surface, and the other side is in contact with the surface of the blade body, and the blade body includes: a first fitting surface, the first fitting surface is in contact with the first pad; a second fitting surface, the second fitting surface is in contact with the second pad; a protrusion, the protrusion is located on the side of the blade body close to the base, and the protrusion is fitted and connected in the groove.

[0011] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: the setting of the second pad prevents the blade body from moving toward the second inclined surface when pressure is applied to the blade, which has a further fixing effect on the blade body. The setting of the protrusion allows the blade body to be positioned more accurately when placed, making it easier for staff to operate.

[0012] In one embodiment of the present invention, the detection device also includes: a fixed block, which is respectively fitted with the side surfaces of the first pad block and the placement block, one end of the fixed block is bent and provided with a first inclined surface, the first inclined surface is fitted with the side surface of the blade body, there are two fixed blocks, and the two fixed blocks are symmetrically arranged on opposite sides of the blade body.

[0013] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: the setting of the first inclined surface makes the connection between the fixed block and the blade body smoother, making the pressure detection result more accurate; the bending setting allows the top of the fixed block to contact the side of the blade body, which plays a positioning role on the side of the blade body and prevents the blade body from slipping during movement.

[0014] In one embodiment of the present invention, the detection device further comprises: a stop block connected to the sliding groove and provided at notches on both sides of the sliding groove, and the placement block can contact the stop block when sliding along the base.

[0015] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: during the sliding process of the placement block, the stop block can limit the moving distance of the placement block, preventing the placement block from falling out of the slide slot and causing inconvenience to the detection work.

[0016] In one embodiment of the present invention, a plurality of blades can be placed on the blade mounting position, and the plurality of blades are respectively welded to the blade mounting position, and the pressure applying portion contacts and applies pressure to one of the plurality of blades.

[0017] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: by setting multiple blades, different pressure heads can apply pressure with corresponding blades, thereby improving the practicality of the detection equipment.

[0018] In one embodiment of the present invention, the detection device includes: a press connecting platform; a transmission part, wherein the side of the transmission part away from the base is connected to the press connecting platform, and the side of the transmission part close to the base is connected to the pressure applying part.

[0019] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: the setting of the press connecting platform allows the detection equipment to be connected to the external press to provide power for the detection work; the setting of the transmission part allows the moving direction of the pressure part to remain stable, avoiding the deviation of the pressure direction and causing errors in the detection results, thereby improving the detection accuracy of the detection equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 Schematic diagram of the first angle and the second angle;

[0022] Figure 3 This is a schematic diagram of the overall structure of the blade body of the present invention;

[0023] Figure 4 This is a schematic diagram of the overall structure of the placement block of the present invention;

[0024] Figure 5 This is a schematic diagram of the connection between the cutter body and the fixed block of the present invention;

[0025] Figure 6 This is a schematic diagram of the overall structure of the fixing block of the present invention;

[0026] Figure 7 This is a schematic diagram of the connection between the base and the stop block of the present invention;

[0027] Figure 8 A schematic diagram of the connection fixing blocks on both sides of the cutter body;

[0028] Figure 9 It is a schematic diagram of the overall structure of the pressure applying part of the present invention.

[0029] Description of reference numerals:

[0030] 100-detection device; 110-placement block; 111-first inclined surface; 112-second inclined surface; 113-third inclined surface; 114-groove; 120-slide; 130-stop block; 140-press connecting platform; 150-transmission part; 160-pressure-applying part; 161-second inclined surface; 170-fixing block; 171-first inclined surface; 180-base; 200-blade body; 210-blade mounting position; 211-blade; 211a-force surface; 220-first pad; 230-second pad; 240-gasket; 250-first fitting surface; 260-second fitting surface; 270-protrusion; detection device-300; first angle-α; second angle-β. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0032] [First embodiment]

[0033] See also Figure 1 , Figure 2 , Figure 3 In a specific embodiment, a shield scraper brazing weld strength testing device 100 includes: a base 180; a blade body 200, the blade body 200 is fixedly connected to the base 180, and the blade body 200 is provided with a blade mounting position 210; a blade 211, the blade 211 is installed in the blade mounting position 210, and the blade is provided with a force surface 211a; a detection device 300, the detection device 300 is located on the side of the blade 211 away from the base 180, the detection device 300 includes a pressure portion 160, and the pressure portion 160 is provided with a second inclined surface 161, the detection device 300 can move relative to the blade, and the force surface 211a is in contact with the second inclined surface 161 through the movement.

[0034] The blade body 200 is placed on the base 180, and the blade body 200 is tilted relative to the base 180. There are parallel and spaced gaps on the top of the blade body 200. A blade mounting position 210 is provided at one end of the top of the blade body 200 near the pressure-applying portion 160. A blade 211 is welded to the blade mounting position 210. The blade 211 is made of cemented carbide material. A first angle α is formed between the upper surface of the blade 211 and the lower bottom surface of the base 180. A second inclined surface 161 is provided at the corner of the pressure-applying portion 160 near the blade body 200, and a second angle β is formed between the second inclined surface 161 and the lower bottom surface of the base 180.

[0035] During operation, the blade 211 is welded to the blade body 200, and then the blade body 200 is placed on the base 180. The blade body 200 is fixed by corresponding components, and the angle of the blade body 200 is adjusted so that the inclination angle of the upper surface of the blade 211 is consistent with the inclination angle of the second inclined surface 161. Then the pressure-applying part 160 is controlled to operate. During the operation, the pressure-applying part 160 gradually moves toward the blade 211, and finally the second inclined surface 161 contacts the force-bearing surface 211a, and the second inclined surface 161 only contacts the force-bearing surface 211a, so that the pressure applied by the pressure-applying part 160 is fully transmitted to the blade 211. After contact, the pressure of the pressure-applying part 160 is gradually increased. At this time, the applied pressure will be displayed on the control screen. The theoretical welding strength value is calculated based on the welding area, and then converted into a downward force value at a certain angle. A certain pressure is applied by the press to detect whether the cemented carbide block is loose to directly judge the welding strength.

[0036] When the pressure applied by the pressure-applying portion 160 reaches the set value, the blade 211 does not move, and the quality of the blade 211 is qualified. If the applied pressure does not reach the set value and there is a sudden displacement and pressure release, the quality of the blade 211 is unqualified. Because the blade mounting position 210 is cut obliquely, when the force-bearing surface 211a receives excessive pressure, it will move along the inclined blade mounting position 211, changing the distance of the weld, and the unqualified blade 211 will be directly destroyed under the action of pressure.

[0037] By setting the force-bearing surface 211a obliquely, the force-bearing surface can slide along the bottom of the blade mounting position 210 when it cannot withstand the pressure. If the pressure-applying portion 160 and the force-bearing surface 211a are set vertically, when the pressure is too high, the blade 211 cannot move, which can easily cause damage to the blade body 200.

[0038] The setting of the blade mounting position 210 makes the placement of the blade 211 more stable. The setting of the second inclined surface 161 and the force-bearing surface 211a allows the strength of the blade 211 to be tested through the pressure applied by the pressure-applying part 160. There is no need to cut the shield scraper to observe the size of the weld, which increases the efficiency of the blade 211 detection and reduces the loss of detection.

[0039] [Second embodiment]

[0040] See also Figure 4 In a specific embodiment, a sliding groove is provided on the base 180, and the detection device 100 further includes: a placement block 110, which is arranged in the sliding groove and can slide along the sliding groove; the placement block 110 includes a first inclined surface 111 and a second inclined surface 112 relative to each other, and the blade 200 is arranged between the first inclined surface 111 and the second inclined surface 112 on the side close to the base 180, and a groove 114 is provided on the side of the second inclined surface 112 close to the base 180, and at least a portion of the blade 200 enters the interior of the groove 114.

[0041] The middle of the base 180 is a rectangular parallelepiped, and "L"-shaped connecting blocks are provided on both sides of the rectangular parallelepiped. The connecting blocks are fixed to the base 180 to form a slide groove 120. The placement block 110 is a rectangular parallelepiped, and a hollow space is provided in the middle of the rectangular parallelepiped. The first inclined surface 111 and the second inclined surface 112 are both inclined along the top of the placement block 110 toward the base 180. The first inclined surface 111 has a smaller slope and a larger area, and the second inclined surface 112 has a larger slope and a smaller area. The groove 114 is located on the side of the second inclined surface 112 away from the first inclined surface 111, and part of the blade 200 enters the groove 114.

[0042] During operation, the placement block 110 is placed in the slide groove 120, and then one side of the blade 200 is fitted with the first inclined surface 111, and one end is placed in the groove 114 to fix the blade 200. Then, the placement block 110 is moved along the slide groove 120 so that the blade 211 is located directly below the second inclined surface 161, which facilitates the pressure-applying part 160 to apply pressure.

[0043] Preferably, the inclination degree of the first inclined surface 111 can be adjusted to make the inclination angles of different blade bodies 200 consistent with the inclination angle of the second inclined surface 161 , so as to facilitate the pressure application by the pressure applying portion 160 .

[0044] The setting of the placement block 110 makes the placement of the blade 200 more convenient. The setting of the first inclined surface 111 provides a preliminary restriction on the placement angle of the blade 200. The setting of the groove 114 makes it difficult for the blade 200 to move on the placement block 110. The placement block 110 can drive the blade 200 to move on the slide groove 120, which facilitates the confirmation of the pressure direction of the pressure part 160 and improves work efficiency.

[0045] [Third embodiment]

[0046] In a specific embodiment, the placement block 110 also includes a third inclined surface 113, which is connected to the first inclined surface 111. The detection device 100 also includes: a first pad 220, which is arranged between the first inclined surface 111 and the blade body 200; a gasket 240, which is in contact with the third inclined surface 113, and the blade body 200 is in contact with the gasket 240 at one end close to the base 180.

[0047] The third inclined surface 113 and the first inclined surface 111 are in a "V" shape, one end of the third inclined surface 113 is connected to the groove 114, one side of the first pad 220 is connected to the first inclined surface 111, and the other side is connected to the blade body 200 and is set obliquely. The oblique setting is used to change the inclination angle of the blade body 200 relative to the base 180. The first pad 220 is triangular and contacts the gasket 240 on the side close to the base 180. The gasket 240 is in contact with the second inclined surface 112. A baffle is provided on one side of the gasket 240, which is fixedly connected to the placement block 110. The top of the baffle is in contact with the side of the gasket 240 to limit the movement of the gasket 240.

[0048] During operation, the first pad 220 is placed on the first inclined surface 111, and then the blade body 200 is placed on the first pad 220, with the bottom of the blade body 200 in contact with the gasket 240 to prevent the blade 211 from being squeezed by the pressure part 160 and the blade body 200 from being subjected to excessive downward pressure as a whole, thereby damaging the placement block 110.

[0049] Preferably, the thickness of the first cushion block 220 can be adjusted according to the specific angle of the blade 211 to ensure that the inclination of the first inclined surface 111 plus the first cushion block 220 is consistent with the inclination of the second inclined surface 161 .

[0050] The setting of the first pad 220 can adjust the angle between the blade body 200 and the base 180, allowing the blade body 200 to cope with different pressure conditions, while also reducing the pressure of the blade body 200 on the placement block 110. The setting of the gasket 240 avoids the contact between the bottom of the blade body 200 and the bottom of the first pad 220 and the placement block 110 respectively, ensuring that the pressure part 160 will not damage the placement block 110 due to excessive pressure when applying pressure, reducing the loss of the placement block 110 and extending its service life.

[0051] [Fourth embodiment]

[0052] In a specific embodiment, the detection device 100 also includes: a second pad 230, the second pad 230 is arranged between the blade body 200 and the second inclined surface 112, one side of the second pad 230 is in contact with the second inclined surface 112, and the other side is in contact with the surface of the blade body 200, the blade body 200 includes: a first fitting surface 250, the first fitting surface 250 is in contact with the first pad 220; a second fitting surface 260, the second fitting surface 260 is in contact with the second pad 230; a protrusion 270, the protrusion 270 is located on the side of the blade body 200 close to the base 180, and the protrusion 270 is fitted and connected in the groove 114.

[0053] The blade body 200 includes a first fitting surface 250 and a second fitting surface 260 relative to each other. The first fitting surface 250 contacts the first pad 220. One side of the second pad 230 contacts the second inclined surface 112 and the inclination of this side is consistent with the second inclined surface 112. The other side contacts the second fitting surface 260 and the inclination is consistent with the second fitting surface 260. The distance between the upper end of the second pad 230 and the base 180 is higher than the distance between the upper end of the placement block 110 and the base 180, which facilitates the removal of the second pad 230. The protrusion 270 is located on the side of the blade body 200 close to the base 180. The protrusion 270 enters the interior of the groove 114 and there is a gap between the protrusion 270 and the surrounding wall of the groove 114.

[0054] During operation, after the first pad 220 is placed, the protrusion 270 is aligned with the groove 114 from the side, and then the blade 200 is placed so that the first fitting surface 250 fits with the first pad 220. Then, the second pad 230 is placed between the second fitting surface 260 and the second inclined surface 112. After ensuring that there is no relative movement between the three, the pressure applying part 160 is controlled to start applying pressure.

[0055] Preferably, the second pad 230 can have multiple thicknesses. When the first fitting surfaces 250 of different blade bodies 200 are placed on the first pad 220, second pads 230 of different thicknesses are selected according to the distance between the second inclined surface 112 and the second fitting surface 260, so that the detection equipment 100 can be applied to different blade bodies 200.

[0056] The setting of the second pad 230 prevents the blade 211 from moving toward the second inclined surface 112 when pressure is applied to the blade body 200, thereby further fixing the blade body 200. The setting of the protrusion 270 allows the blade body 200 to be positioned more accurately when placed, making it easier for staff to operate.

[0057] [Fifth embodiment]

[0058] See also Figure 5 , Figure 6 , Figure 8 In a specific embodiment, the detection device 100 further includes: a fixed block 170, the fixed block 170 is respectively in contact with the side surfaces of the first cushion block 220 and the placement block 110, one end of the fixed block 170 is bent and provided with a first inclined surface 171, the first inclined surface 171 is in contact with the side surface of the blade body 200, there are two fixed blocks 170, and the two fixed blocks 170 are symmetrically arranged on opposite sides of the blade body 200.

[0059] The bottom end of the fixed block 170 is fixedly connected to the placement block 110. The fixed block 170 extends along the placement block 110 toward the first fitting surface 250 of the blade body 200. The first inclined surface 171 is located in the extension direction. The inclination degree of the first inclined surface 171 is consistent with the second fitting surface 260, and the first inclined surface 171 is fitted with the second fitting surface 260 as a whole. When the blade body 200 is subjected to downward pressure, the first inclined surface 171 will not give the blade body 200 an upward supporting force, thereby ensuring the accuracy of the pressure detection reading.

[0060] The first inclined surface 171 is bent at the outside and continues to extend upward, with the extended end being in contact with the side surface of the blade body 200 . The same fixing blocks 170 are symmetrically provided on both sides of the blade body 200 to fix the blade body 200 .

[0061] The setting of the first inclined surface 171 makes the connection between the fixing block 170 and the blade body 200 smoother, making the pressure detection result more accurate. The bending setting allows the top of the fixing block 170 to contact the side of the blade body 200, positioning the side of the blade body 200 and preventing the blade body 200 from slipping during movement.

[0062] [Sixth embodiment]

[0063] See also Figure 7 In a specific embodiment, the detection device 100 further includes: a stop block 130 , which is connected to the sliding groove and is provided at notches on both sides of the sliding groove, and the placement block 110 can contact the stop block 130 when sliding along the base 180 .

[0064] The stop block 130 is L-shaped, with the bottom of the stop block 130 and the base 180 fixed on the same plane, and the other end fits into the notch of the slide groove 120 and is higher than the height of the middle rectangular parallelepiped of the base 180.

[0065] During the sliding process of the placement block 110 , the stop block 130 can limit the moving distance of the placement block 110 , thereby preventing the placement block 110 from falling out of the slide groove 120 and causing inconvenience to the detection work.

[0066] [Seventh embodiment]

[0067] In a specific embodiment, a plurality of blades 211 can be placed on the blade mounting position 210 , and the plurality of blades 211 are respectively welded to the blade mounting position 210 , and the pressure applying portion 160 contacts and applies pressure to one of the plurality of blades 211 .

[0068] The blade mounting position 210 can usually weld three blades 211 , and the three blades 211 are welded to the blade mounting position 210 respectively. After the blades 211 are welded, the pressure applying part 160 applies pressure to the blades 211 at each position one by one to detect the strength of different blades 211 .

[0069] Preferably, the pressure head of the pressure applying portion 160 can be replaced, and the blade 211 that needs to apply pressure is selected according to different pressure heads.

[0070] By providing a plurality of blades 211 , different indenters can apply pressure to corresponding blades 211 , thereby improving the practicality of the detection device 100 .

[0071] [Eighth embodiment]

[0072] See also Figure 9 In a specific embodiment, the detection device 300 includes: a press connecting platform 140; a transmission part 150. The transmission part 150 is connected to the press connecting platform 140 on a side away from the base 180, and is connected to the pressure applying part 160 on a side close to the base 180.

[0073] The press connecting platform 140 is rectangular and is connected to an external press. The transmission part 150 is circular on one side close to the press connecting platform 140, and a mounting position is provided on the other side. The pressure-applying part 160 is provided in the mounting position, and a second inclined surface 161 is provided on the side of the pressure-applying part 160 closest to the blade 211. During operation, the position of the cutter body 200 is adjusted so that the second inclined surface 161 contacts the blade 211, and then the press is driven to control the press connecting platform 140 to move downward. Under the transmission of the transmission part 150, the second inclined surface 161 applies pressure to the blade 211.

[0074] The setting of the press connecting platform 140 allows the detection equipment 100 to be connected to an external press to provide power for the detection work. The setting of the transmission part 150 allows the moving direction of the pressure part 160 to remain stable, avoiding the deviation of the pressure direction and causing errors in the detection results, thereby improving the detection accuracy of the detection equipment 100.

[0075] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be based on the scope defined by the claims.

Claims

1. A shield scraper brazing weld strength testing device, characterized in that: The detection equipment includes: A base, wherein a sliding groove is provided on the base; A knife body, the knife body is fixedly connected to the base, and a blade mounting position is provided on the knife body; A blade, the blade being mounted on the blade mounting position, the blade being provided with a force-bearing surface; a detection device, the detection device being located on a side of the blade away from the base, the detection device comprising a pressure-applying portion having a second inclined surface provided thereon, the detection device being movable relative to the blade, the force-bearing surface being in contact with the second inclined surface through the movement; a placement block, the placement block being arranged in the sliding groove and being capable of sliding along the sliding groove; The placement block includes a first inclined surface and a second inclined surface that are opposite to each other; The placement block further includes a third inclined surface, the third inclined surface being connected to the first inclined surface, and the detection device further includes: a first cushion block, the first cushion block being arranged between the first inclined surface and the blade body; a gasket, the gasket being in contact with the third inclined surface, and the end of the blade body close to the base being in contact with the gasket; The first pad is triangular and contacts the gasket on one side close to the base. The gasket is in contact with the second inclined surface. A baffle is provided on one side of the gasket. The baffle is fixedly connected to the placement block. The top of the baffle is in contact with the side of the gasket to limit the movement of the gasket. A fixing block is respectively fitted with the side surfaces of the first cushion block and the placement block. One end of the fixing block is bent and provided with a first inclined surface, and the first inclined surface is fitted with the side surface of the blade body.

2. The detection device according to claim 1, characterized in that The detection device also includes: The blade body is arranged between the first inclined surface and the second inclined surface on a side close to the base. The second inclined surface is provided with a groove on a side close to the base. At least a portion of the blade body enters the groove.

3. The detection device according to claim 2, characterized in that The detection device also includes: The second pad is provided between the blade body and the second inclined surface, one side of the second pad is in contact with the second inclined surface, and the other side is in contact with the surface of the blade body.

4. The detection device according to claim 3, characterized in that The blade body comprises: a first fitting surface, wherein the first fitting surface is fitted with the first cushion block; a second fitting surface, the second fitting surface being fitted with the second cushion block; A protrusion is located on a side of the blade body close to the base, and the protrusion is fitted and connected in the groove.

5. The detection device according to claim 4, characterized in that There are two fixing blocks, which are symmetrically arranged on opposite sides of the blade body.

6. The detection device according to claim 2, characterized in that The detection device also includes: A stop block is connected to the sliding groove and is arranged at notches on both sides of the sliding groove. The placement block can contact the stop block when sliding along the base.

7. The detection device according to any one of claims 1 to 6, characterized in that: A plurality of blades can be placed on the blade mounting position, and the plurality of blades are respectively welded to the blade mounting position, and the pressure applying portion contacts and applies pressure to one of the plurality of blades.

8. The detection device according to any one of claims 1 to 6, characterized in that: The detection device comprises: Press connection table; A transmission part, wherein the side of the transmission part away from the base is connected to the press connecting platform, and the side of the transmission part close to the base is connected to the pressure applying part.

Images