A performance detection device for cemented carbide cutting inserts

Abstract

The present invention relates to the technical field of cemented carbide cutting tool head processing, and specifically relates to a performance detection device for cemented carbide cutting tool heads, including a fixing mechanism, a wear resistance detection mechanism and a bending resistance detection mechanism installed on the fixing mechanism. The fixing mechanism includes a base table, a support and a fixing component installed on the base table. In the present invention, the alloy cutting tool head is initially clamped and fixed by a clamping component. When the hydraulic push rod 1 pushes the connecting plate to move to the right to conduct a friction test on the alloy cutting tool head, the pushing rod is used to push the clamping component to conduct secondary clamping and fixing on the test end of the alloy cutting tool head, and then the connecting component is used to connect and lock the pushing rod and the hollow ring. Through the linkage cooperation of the hollow ring, the clamping component, the pushing rod and the connecting component, the relative stability between the friction block and the alloy cutting tool head during detection is improved, thereby improving the accuracy of detection.

Description

Technical Field

[0001] The present invention relates to the technical field of cemented carbide cutting tool head processing, and particularly to a performance detection device for cemented carbide cutting tool heads. Background Art

[0002] A cemented carbide cutting tool head is a tool made of carbides such as tungsten carbide and titanium carbide, which has characteristics such as high hardness, good wear resistance, and excellent heat resistance. It is usually used on machine tools such as lathes, milling machines, and drill presses for operations such as cutting, drilling, and milling. Since the cemented carbide cutting tool head will be subjected to various forces during actual use, and there will also be friction between the tool and the workpiece, the surface of the tool will gradually wear. Therefore, it is necessary to perform bending strength detection and wear resistance detection on the cemented carbide cutting tool head to evaluate the ability of the tool material to resist bending deformation and fracture and the ability to resist wear, so as to ensure the use quality and service life of the cemented carbide cutting tool head.

[0003] Common bending strength detection is to place the specimen in a testing machine, support both ends of the specimen through supports, and press down on the middle of the specimen through a pressing head until the specimen breaks, and the bending strength is represented by the pressure borne by the specimen when it breaks; while wear resistance detection is to use a friction wheel to friction the working end of the specimen, and the wear resistance is represented by the reduction of the specimen length or mass to evaluate the service life of the alloy cutting tool head.

[0004] When the above detection methods are used to detect the cemented carbide cutting tool head, the wear resistance detection and the bending strength detection are carried out separately. Before performing the two detections, it is necessary to fix the alloy cutting tool head. The repeated fixing operations take a long time and affect the detection efficiency; when performing the wear resistance test on the alloy cutting tool head, only the end in contact with the friction wheel is in contact with each other by the pressing force, and the friction wheel has no additional auxiliary guiding and limiting. When the friction wheel performs friction, there will be a relative offset between the alloy cutting tool head and the friction wheel, which will affect the accuracy of the wear resistance test; when performing the bending strength detection on the alloy cutting tool head, the alloy cutting tool head is placed on a bottom support seat with an arc-shaped groove. As the downward pressure on the middle of the alloy cutting tool head gradually increases, the middle of the alloy cutting tool head will gradually bend downward, and both ends of the alloy cutting tool head will gradually tilt upward, and the contact area between its end and the arc-shaped groove decreases, and even breaks away from the limit of the arc-shaped groove. At this time, the overall stability of the alloy cutting tool head decreases and it is prone to offset, which will affect the accuracy of the bending strength detection. Summary of the Invention

[0005] To solve the above problems, the present invention provides a performance detection device for cemented carbide cutting tips, including a fixing mechanism, a wear resistance detection mechanism and a bending resistance detection mechanism installed on the fixing mechanism. The fixing mechanism includes a base table, a support and a fixing component installed on the base table. The fixing component includes fixing plates that are fixedly connected to the top of the base table and are symmetrically arranged left and right. A movable plate with a through hole in the middle is slidably installed left and right on the top of the base table and is located between the two fixing plates. Clamping components are installed on the opposite sides of the movable plate and the right fixing plate.

[0006] The wear resistance detection mechanism includes a pushing plate slidably installed left and right on the top of the base table and located on the left side of the movable plate. A driving motor is fixedly installed on the right side of the pushing plate. A hydraulic push rod I for pushing the pushing plate to move is fixedly installed on the left fixing plate. The right side of the output shaft of the driving motor is fixedly connected to a connecting disc. A connecting component for clamping and fixing the cutting tip is installed in the through hole of the movable plate.

[0007] The bending resistance detection mechanism includes a gantry fixedly installed on the base table. A hydraulic push rod II is fixedly installed on the horizontal section of the gantry. The bottom of the pushing section of the hydraulic push rod II is fixedly connected to a mounting seat. A pressing head is fixedly connected to the bottom of the mounting seat. A group of elastic telescopic rods II are hinged on both the left and right sides of the mounting seat. The number of each group of elastic telescopic rods II is two. The ends of the two elastic telescopic rods II in the same group away from the mounting seat are jointly installed with a locking component for locking the clamping component.

[0008] In a possible implementation manner, the number of the supports is two and they are distributed between the left and right clamping components. An arc-shaped groove that is recessed downward is provided on the top of the support.

[0009] In a possible implementation manner, guide rods are fixedly connected between the four corners of the left and right fixing plates. The movable plate and the pushing plate are both slidably installed left and right between the four guide rods. The right side of the pushing section of the hydraulic push rod I is fixedly connected to the left side of the pushing plate. An electric push rod I for pushing the movable plate to move is fixedly installed on the base table. The right side of the pushing section of the electric push rod I is fixedly connected to the bottom of the movable plate.

[0010] In a possible implementation manner, a baffle I for blocking the left end of the through hole is slidably installed front and back on the left side of the movable plate. A moving component for driving the baffle I to move back and forth is also installed on the left side of the movable plate. The moving component includes elastic telescopic rods I that are fixedly connected to the left side of the movable plate and are symmetrically distributed up and down with respect to the through hole. A linkage rod is hinged between the left side of the telescopic section of the elastic telescopic rod I and the front end of the baffle I. Guide rods I that are symmetrically distributed up and down with respect to the through hole are fixedly connected to the left side of the movable plate. The baffle I is slidably installed back and forth between the upper and lower guide rods I. A return spring I is fixedly connected between the rear side of the baffle I and the inner wall of the movable plate.

[0011] In a possible implementation manner, the connection component includes a hollow ring movably installed inside the through hole. A number of clamping components are circumferentially and uniformly installed on the inner ring wall of the hollow ring. A number of pushing rods that are inserted and matched with the hollow ring are circumferentially and uniformly installed on the edge of the right side of the connection disk. A number of insertion holes for the pushing rods to be inserted into are circumferentially and uniformly formed on the left side of the hollow ring. A connection component for fixing the hollow ring and the pushing rods is installed inside the hollow ring. A friction block is detachably installed at the center of the right side of the connection disk.

[0012] In a possible implementation manner, the clamping component includes a wedge-shaped clamping block slidably installed along the radial direction of the hollow ring. A ball is rotatably installed at one end of the wedge-shaped clamping block close to the center of the hollow ring. An inner chute is formed on the right side of the wedge-shaped clamping block. A second baffle located in the inner chute is fixedly connected to the inner wall of the right side of the hollow ring. A second return spring is fixedly connected between the side of the second baffle away from the center of the hollow ring and the inner wall of the wedge-shaped clamping block. The right end of the pushing rod is slidably matched with the inclined surface at one end of the wedge-shaped clamping block away from the center of the hollow ring.

[0013] In a possible implementation manner, the connection component includes a number of limiting rods slidably installed along the radial direction of the hollow ring and circumferentially and uniformly distributed inside the hollow ring. The limiting rods are located outside the corresponding pushing rods. A hole groove for the end of the limiting rod away from the center of the hollow ring to slide is formed on the hollow ring. A clamping groove inserted and matched with the end of the limiting rod away from the center of the hollow ring is formed on the inner wall of the through hole. A limiting block is slidably installed at one end of the limiting rod close to the center of the hollow ring. Tooth teeth and tooth grooves are respectively installed on the opposite sides of the limiting block and the corresponding pushing rod. The tooth teeth and the tooth grooves cooperate with each other. A third return spring is fixedly connected between the limiting block and the limiting rod. A position-changing component for driving the limiting rods to change positions is also installed on the hollow ring.

[0014] In a possible implementation manner, the position-changing component includes a guiding block rotatably connected to the right end of the limiting rod. A rotating ring located on the right side of the limiting rod is rotatably installed inside the hollow ring. A number of arc-shaped through grooves are circumferentially and uniformly formed on the rotating ring. The guiding block is slidably matched with the arc-shaped through grooves one by one. A pushing rod is fixedly connected to the right side of the rotating ring. An activity groove for the pushing rod to deflect is formed on the right side of the hollow ring. A positioning plate located on the right side of the hollow ring is fixedly connected to the right end of the pushing rod. A fixing bolt is fixedly connected to the positioning plate. Two fixing holes threadedly matched with the fixing bolt are formed on the right side of the hollow ring. When the pushing rod rotates to one end of the activity groove, the fixing bolt just aligns coaxially with one of the fixing holes.

[0015] In a possible implementation manner, the clamping component is a three-jaw chuck. The locking assembly includes a locking block that is slidably mounted left and right on the top of the base table and is located between adjacent clamping components and supports. The locking block has a Y-shaped structure. A pin rod is fixedly connected to the jaws of the clamping component. A number of pin holes that are inserted and matched with the pin rods one by one are provided on the locking block. One end of the top of the locking block is hinged with a connecting rod. The end of the connecting rod away from the locking block is threadedly connected with a fastening bolt. The connecting rod is connected and locked to the other end of the top of the locking block through the fastening bolt.

[0016] In a possible implementation manner, guiding rods two that are symmetrically distributed before and after with respect to the second hydraulic push rod are fixedly connected to the top of the mounting seat. The guiding rods two are slidably connected up and down with the gantry.

[0017] Advantages of the present invention: 1. The present invention preliminarily clamps and fixes the alloy cutting head through the clamping component. When the first hydraulic push rod pushes the connecting disk to move rightward to conduct a friction test on the alloy cutting head, the pushing rod is used to push the clamping component to conduct secondary clamping and fixing on the test end of the alloy cutting head. Then, the connecting component connects and locks the pushing rod and the hollow ring. Through the linkage cooperation of the hollow ring, the clamping component, the pushing rod, and the connecting component, the relative stability between the friction block and the alloy cutting head during detection is improved, thereby improving the accuracy of detection.

[0018] 2. The present invention fixes the alloy cutting head through the linkage cooperation of the clamping component and the locking assembly. When the mounting seat drives the lower pressing head to move downward to apply pressure to the alloy cutting head, the mounting seat can push the locking block to move to both sides through the second elastic telescopic rod, so that the pin holes are inserted and matched with the pin rods, and the locking block is used to connect the three jaws of the clamping component together, further improving the firmness of the clamping component in fixing both ends of the alloy cutting head, thereby improving the accuracy of detection.

[0019] 3. The present invention fixes the alloy cutting head through the cooperation of the fixing plate, the movable plate, the first baffle, and the clamping component. The fixing plate and the movable plate can clamp and fix the alloy cutting head left and right, and the clamping component can perform triangular clamping and fixing on both ends of the alloy cutting head, thereby improving the stability of the alloy cutting head during the bending resistance test. Description of the Drawings

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

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

[0022] Figure 3 is a three-dimensional structural schematic diagram of the movable plate of the present invention.

[0023] Figure 4It is a schematic three-dimensional structure diagram of the wear-resistant detection mechanism of the present invention.

[0024] Figure 5 It is a partial cross-sectional view of the connection component of the present invention.

[0025] Figure 6 It is Figure 5 The enlarged view of part A in

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

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

[0028] Figure 9 It is a schematic three-dimensional structure diagram of the locking component of the present invention.

[0029] In the figure: 1. Fixing mechanism; 11. Base; 12. Support; 13. Fixing component; 131. Fixed plate; 1311. Guide rod; 132. Movable plate; 133. Baffle plate 1; 134. Moving part; 1341. Elastic telescopic rod 1; 1342. Linking rod; 1343. Guide rod 1; 1344. Return spring 1; 135. Clamping part; 136. Electric push rod 1; 2. Wear-resistant detection mechanism; 21. Pushing plate; 22. Driving motor; 23. Hydraulic push rod 1; 24. Connection disk; 241. Friction block; 25. Connection component; 251. Hollow ring; 252. Clamping part; 2521. Wedge-shaped clamp block; 2522. Baffle plate 2; 2523. Return spring 2; 253. Pushing rod; 254. Connection part; 2541. Limit rod; 2542. Limit block; 2543. Return spring 3; 2544. Guide block; 2545. Rotating ring; 2546. Arc-shaped through groove; 2547. Pushing rod; 2548. Fixed bolt; 2549. Fixed hole; 3. Bending resistance detection mechanism; 31. Gantry; 32. Hydraulic push rod 2; 33. Mounting seat; 331. Guide rod 2; 34. Pressing head; 35. Elastic telescopic rod 2; 36. Locking component; 361. Locking block; 362. Pin hole; 363. Pin rod; 364. Connecting rod; 365. Fastening bolt. Detailed implementation manners

[0030] To make the above objects, features and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manners of the present invention with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described below, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific implementation manners disclosed below.

[0031] Please refer toFigure 1 , Figure 2 and Figure 3 , a performance detection device for a cemented carbide cutting tool head, comprising a fixing mechanism 1 and a wear resistance detection mechanism 2 and a bending resistance detection mechanism 3 mounted on the fixing mechanism 1. The fixing mechanism 1 includes a base 11 and a support 12 and a fixing component 13 mounted on the base 11. The fixing component 13 includes fixing plates 131 which are fixedly connected to the top of the base 11 and are symmetric left and right. A movable plate 132 which is slidably mounted left and right on the top of the base 11 and is located between the two fixing plates 131 and has a through hole in the middle is provided. Clamping components 135 are mounted on the opposite sides of the movable plate 132 and the right fixing plate 131.

[0032] Please refer to Figure 1 , Figure 3 , Figure 4 and Figure 5 , the wear resistance detection mechanism 2 includes a pushing plate 21 which is slidably mounted left and right on the top of the base 11 and is located on the left side of the movable plate 132. A driving motor 22 is fixedly mounted on the right side of the pushing plate 21. A hydraulic push rod 1 23 for pushing the pushing plate 21 to move is fixedly mounted on the left fixing plate 131. A connecting disc 24 is fixedly connected to the right side of the output shaft of the driving motor 22. A connecting component 25 for clamping and fixing the cutting tool head is mounted in the through hole of the movable plate 132.

[0033] Please refer to Figure 1 , Figure 2 and Figure 8 , the bending resistance detection mechanism 3 includes a gantry 31 fixedly mounted on the base 11. A hydraulic push rod 2 32 is fixedly mounted on the horizontal section of the gantry 31. A mounting seat 33 is fixedly connected to the bottom of the output shaft of the hydraulic push rod 2 32. A pressure sensor for measuring the downward pressure is also mounted on the pushing section of the hydraulic push rod 2 32. A downward pressing head 34 is fixedly connected to the bottom of the mounting seat 33. A group of elastic telescopic rods 2 35 are hinged on both the left and right sides of the mounting seat 33. The number of each group of elastic telescopic rods 2 35 is two. The ends of the two elastic telescopic rods 2 35 in the same group away from the mounting seat 33 are jointly mounted with a locking component 36 for locking the clamping component 135. It should be noted that the pressure sensor is connected to an external computer, and the pressure data applied by the hydraulic push rod 2 32 is transmitted to the computer in real time through the pressure sensor, and the computer analyzes and displays the pressure data.

[0034] Please refer to Figure 1 and Figure 2 , the number of supports 12 is two and they are distributed between the left and right clamping components 135. An arc-shaped groove which is sunken downward is provided on the top of the support 12.

[0035] The support 12 is used to support the alloy tool bit. The arc-shaped groove at the top of the support 12 can prevent the alloy tool bit from rolling off from the front and rear sides of the support 12, making the left and right ends of the alloy tool bit horizontally aligned with the center line of the clamping component 135, which is convenient for the clamping component 135 to clamp the alloy tool bit.

[0036] Please refer to Figure 1 、 Figure 2 and Figure 4 . Guide rods 1311 are fixedly connected between the four corners of the left and right fixing plates 131. The movable plate 132 and the pushing plate 21 are both slidably installed left and right between the four guide rods 1311. The right side of the pushing section of the hydraulic push rod 23 is fixedly connected to the left side of the pushing plate 21. An electric push rod 136 for pushing the movable plate 132 to move is fixedly installed on the base table 11, and the right side of the pushing section of the electric push rod 136 is fixedly connected to the bottom of the movable plate 132.

[0037] Please refer to Figure 1 and Figure 3 . A baffle 133 for blocking the left end of the through hole is slidably installed front and back on the left side of the movable plate 132. A moving component 134 for driving the baffle 133 to move back and forth is also installed on the left side of the movable plate 132. The moving component 134 includes elastic telescopic rods 1341 fixedly connected to the left side of the movable plate 132 and symmetrically distributed up and down with respect to the through hole. A linkage rod 1342 is hinged between the left side of the telescopic section of the elastic telescopic rod 1341 and the front end of the baffle 133. Guide rods 1343 symmetrically distributed up and down with respect to the through hole are fixedly connected to the left side of the movable plate 132. The baffle 133 is slidably installed back and forth between the upper and lower guide rods 1343. A return spring 1344 is fixedly connected between the rear side of the baffle 133 and the inner wall of the movable plate 132.

[0038] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 . The movement of the pushing plate 21 and the movable plate 132 is guided by the guide rods 1311 to improve the stability of the movement of the pushing plate 21 and the movable plate 132. The electric push rod 136 is used to push the movable plate 132 to move to the right, and the left end of the alloy tool bit will enter the through hole. The baffle 133 is used to push the alloy tool bit to move to the right until the baffle 133 and the right fixing plate 131 limit the alloy tool bit left and right. Then, the clamping component 135 is controlled to clamp the left and right ends of the alloy tool bit, improving the stability of the alloy tool bit during detection.

[0039] Then, the hydraulic push rod 23 pushes the extrusion plate 21 to move rightward. The extrusion plate 21 will drive the driving motor 22 and the connecting plate 24 to move rightward together. The extrusion plate 21 is used to push the telescopic section of the first elastic telescopic rod 1341 to move rightward. When the telescopic section of the first elastic telescopic rod 1341 moves rightward, it will push the first baffle 133 forward through the linkage rod 1342. At this time, the first return spring 1344 will be stretched, and the first guide rod 1343 plays a guiding role for the first baffle 133 to improve the stability of the movement of the first baffle 133. When the forward-moving first baffle 133 no longer blocks the through-hole, the connecting plate 24 can enter the through-hole to conduct wear resistance testing on the left end of the alloy cutter head.

[0040] After the detection is completed, the hydraulic push rod 23 drives the extrusion plate 21 to move leftward. After losing the extrusion of the extrusion plate 21, the first return spring 1344's resilience is used to pull the first baffle 133 backward. At the same time, the telescopic section of the first elastic telescopic rod 1341 drives the rear end of the linkage rod 1342 to move leftward, so that the first baffle 133 re-blocks the through-hole.

[0041] Please refer to Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown in, the connecting component 25 includes a hollow ring 251 movably installed inside the through-hole. A number of clamping components 252 are circumferentially and evenly installed on the inner ring wall of the hollow ring 251. A number of push rods 253 inserted and matched with the hollow ring 251 are circumferentially and evenly installed on the right edge of the connecting plate 24. A number of insertion holes for the push rods 253 to insert are circumferentially and evenly opened on the left side of the hollow ring 251. A connecting component 254 for fixing the hollow ring 251 and the push rods 253 is installed inside the hollow ring 251. A friction block 241 is detachably installed at the center of the right side of the connecting plate 24.

[0042] Please refer to Figure 4 、 Figure 5 and Figure 6 As shown in, the clamping component 252 includes a wedge-shaped clamping block 2521 slidably installed along the radial direction of the hollow ring 251. A ball is rotatably installed at one end of the wedge-shaped clamping block 2521 close to the center of the hollow ring 251. An inner chute is opened on the right side of the wedge-shaped clamping block 2521. A second baffle 2522 located in the inner chute is fixedly connected to the right inner wall of the hollow ring 251. A second return spring 2523 is fixedly connected between the side of the second baffle 2522 away from the center of the hollow ring 251 and the inner wall of the wedge-shaped clamping block 2521. The right end of the push rod 253 is slidably matched with the inclined surface at one end of the wedge-shaped clamping block 2521 away from the center of the hollow ring 251.

[0043] Please refer to Figure 1 、 Figure 3 、 Figure 4 、 Figure 5 andFigure 6 Before the hydraulic push rod 1-23 pushes the extrusion plate 21, the drive motor 22 and the connection plate 24 to move rightward, the drive motor 22 drives the extrusion rod 253 to rotate to a state where it is distributed vertically and horizontally (in a positive cross distribution). At this time, the extrusion rod 253 is aligned with the insertion hole on the left side of the hollow ring 251. Then, the hydraulic push rod 1-23 pushes the extrusion plate 21, the drive motor 22 and the connection plate 24 to move rightward, so that the right end of the extrusion rod 253 is inserted into the insertion hole and abuts against the inclined surface of the wedge-shaped clamping block 2521. The extrusion rod 253 is used to push the wedge-shaped clamping block 2521 to move towards the center of the hollow ring 251 until the ball on the wedge-shaped clamping block 2521 clamps outside the working section of the alloy cutter head (i.e., the section to be wear-resistant tested). At this time, the return spring 2-2523 will be compressed.

[0044] Please refer to Figure 4 、 Figure 5 and Figure 6 As shown in FIGS.

[0045] Please refer to Figure 4 、 Figure 5 、 Figure 6 and Figure 7 ​, the commutation component includes a guiding block 2544 rotatably connected to the right end of the limiting rod 2541. Inside the hollow ring 251, a rotating ring 2545 is rotatably installed on the right side of the limiting rod 2541. A number of arc-shaped through slots 2546 evenly distributed in the circumferential direction are formed on the rotating ring 2545. The guiding block 2544 is in sliding fit with the arc-shaped through slots 2546 one by one. A pushing rod 2547 is fixedly connected to the right side of the rotating ring 2545. An activity slot for the pushing rod 2547 to deflect is formed on the right side of the hollow ring 251. The right end of the pushing rod 2547 passes through the activity slot and is fixedly connected to a positioning plate located on the right side of the hollow ring 251. A fixing bolt 2548 is fixedly connected to the positioning plate. Two fixing holes 2549 in threaded fit with the fixing bolt 2548 are formed on the right side of the hollow ring 251. When the pushing rod 2547 rotates to one end of the activity slot, the fixing bolt 2548 is just coaxially aligned with one of the fixing holes 2549.

[0046] Please refer to Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 , in the initial state, the end of the limiting rod 2541 far from the center of the hollow ring 251 is inserted into the clamping groove on the inner wall of the through hole, fixing the hollow ring 251 in the through hole. At this time, the pushing rod 2547 is located at the top of the activity slot; after the pushing rod 253 pushes the wedge-shaped clamping block 2521 to clamp the alloy cutter head, loosen the fixing bolt 2548, and then push the pushing rod 2547 to drive the rotating ring 2545 to rotate clockwise, so that the arc-shaped through slot 2546 pushes the guiding block 2544 and the limiting rod 2541 to move towards the center of the hollow ring 251, making the limiting block 2542 engage with the corresponding pushing rod 253 through the tooth and tooth groove, connecting the pushing rod 253 with the hollow ring 251. At this time, the limiting rod 2541 is not completely separated from the clamping groove, preventing the hollow ring 251 from moving during the commutation locking process.

[0047] After that, the rotating ring 2545 pushes the guiding block 2544 and the limiting rod 2541 to continue moving towards the center of the hollow ring 251, so that the limiting rod 2541 is completely separated from the clamping groove. At this time, the return spring three 2543 will be compressed. After the pushing rod 2547 moves to the bottom of the activity slot, the fixing bolt 2548 is coaxially aligned with the other fixing hole 2549, and then the fixing bolt 2548 and the fixing hole 2549 are screwed together to position the rotating ring 2545.

[0048] Before the abrasion resistance test, the initial length of the alloy tool bit is measured using an existing laser measuring instrument. During the abrasion resistance test, the driving motor 22 drives the connecting disk 24 to rotate, so that the friction block 241 rubs against the left end of the alloy tool bit. During the rubbing process, the hydraulic push rod 1 23 pushes the connecting disk 24 and the friction block 241 to move to the right, so that the friction block 241 remains in a pressed state with the alloy tool bit. When the connecting disk 24 moves to the right, it will drive the pushing rod 253 and the hollow ring 251 to move to the right together. During the rotation of the connecting disk 24, the pushing rod 253 will drive the hollow ring 251 to rotate. The wedge-shaped clamping block 2521 and the ball on it always clamp the alloy tool bit. The linkage cooperation of the hollow ring 251, the wedge-shaped clamping block 2521 and the pushing rod 253 is used to limit the connecting disk 24, and at the same time, the support for the detection section of the alloy tool bit is maintained, improving the relative stability of the friction block 241 and the alloy tool bit during friction, and thus improving the accuracy of the detection.

[0049] After a period of time, stop rubbing the alloy tool bit, and then the hydraulic push rod 1 23 drives the push plate 21 to move to the left. The push plate 21 drives the driving motor 22, the connecting disk 24 and the hollow ring 251 to move to the left together. When the hollow ring 251 moves to the initial position to the left, the driving motor 22 drives the connecting disk 24 and the hollow ring 251 to rotate, so that the wedge-shaped clamping block 2521 is in a state of being distributed up and down and front and back (positive cross distribution). At this time, the limiting rod 2541 is aligned with the card slot up and down. Then loosen the fixing bolt 2548, and then push the push rod 2547 to drive the rotating ring 2545 to rotate counterclockwise, so that the rotating ring 2545 pushes the limiting rod 2541 to move away from the center of the hollow ring 251, so that the limiting rod 2541 is inserted into the card slot until the limiting block 2542 is separated from the pushing rod 253. After that, the hydraulic push rod 1 23 drives the push plate 21 to continue moving to the left, so that the pushing rod 253 is completely separated from the hollow ring 251. At this time, the resilience of the return spring 2 2523 is used to push the wedge-shaped clamping block 2521 to move away from the center of the hollow ring 251, so that the wedge-shaped clamping block 2521 releases the clamping of the alloy tool bit. Then use an existing laser measuring instrument to measure the length of the alloy tool bit after friction, and evaluate the abrasion resistance of the alloy tool bit.

[0050] Please refer to Figure 1 、 Figure 2 、 Figure 8 and Figure 9, the clamping member 135 is a three-jaw chuck. The locking assembly 36 includes a locking block 361 that is slidably mounted left and right on the top of the base 11 and is located between the adjacent clamping members 135 and the support 12. The locking block 361 has a Y-shaped structure. A pin rod 363 is fixedly connected to the jaws of the clamping member 135. A number of pin holes 362 that are inserted and matched with the pin rod 363 one by one are provided on the locking block 361. One end of the top of the locking block 361 is hinged with a connecting rod 364. The end of the connecting rod 364 away from the locking block 361 is threadedly connected with a fastening bolt 365. The connecting rod 364 is connected and locked with the other end of the top of the locking block 361 through the fastening bolt 365.

[0051] Please refer to Figure 1 and Figure 9 , on the top of the mounting seat 33, guiding rods two 331 that are symmetrically distributed before and after the hydraulic push rod two 32 are fixedly connected. The guiding rods two 331 are slidably connected to the gantry 31 up and down.

[0052] Please refer to Figure 1 , Figure 2 , Figure 8 and Figure 9 , before the alloy tool bit is placed on the support 12, the connecting rod 364 is in an open state, so that the alloy tool bit can move downward from the opening between the two ends of the top of the locking block 361 and be placed on the support 12. Then rotate the connecting rod 364 to close the opening between the two ends of the top of the locking block 361. Then use the fastening bolt 365 to connect the connecting rod 364 with the other end of the locking block 361. The connecting rod 364 can improve the connection firmness of the locking block 361.

[0053] When performing the bending resistance test, the mounting seat 33 and the lower pressing head 34 are pushed downward by the hydraulic push rod two 32. The guiding rods two 331 play a guiding role for the mounting seat 33, improving the stability of the up and down movement of the mounting seat 33. During the downward movement of the mounting seat 33, the locking block 361 is pushed by the elastic telescopic rod two 35 to move towards the direction close to the corresponding clamping member 135 until the locking block 361 abuts against the jaws of the clamping member 135. At this time, the pin rod 363 just plugs into the pin hole 362, and the three jaws are connected together by the locking block 361, improving the fixing firmness of the jaws to the alloy tool bit.

[0054] After that, the mounting seat 33 pushes the lower pressing head 34 to continue moving downward. At this time, the elastic telescopic rod two 35 can play a role of supporting and guiding the mounting seat 33, further improving the stability of the downward movement of the mounting seat 33 and the lower pressing head 34. The middle part of the alloy tool bit is pressed by the lower pressing head 34 until the alloy tool bit is deformed. The maximum pressure received when the alloy tool bit breaks is measured by the pressure sensor, and the bending strength of the alloy tool bit is obtained.

[0055] In the description of the present invention, it should also be noted that unless otherwise clearly specified and defined, the terms "arranged", "connected", "installed", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, an integral connection, or a sliding connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] The embodiments of this specific implementation manner are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A cemented carbide tool head performance detection device, characterized in that: It includes a fixing mechanism and a wear-resistant detection mechanism and a bending resistance detection mechanism installed on the fixing mechanism. The fixing mechanism includes a base and a support and a fixing assembly installed on the base. The fixing assembly includes a fixing plate fixedly connected to the top of the base and symmetrical on the left and right sides. A movable plate located between the two fixing plates and having a through hole in the middle is installed on the top of the base for sliding left and right. A clamping component is installed on the opposite side of the movable plate and the right fixing plate. The wear-resistant detection mechanism includes a pushing plate which is slidably mounted on the top of the base and located on the left side of the movable plate, a driving motor is fixedly mounted on the right side of the pushing plate, a hydraulic push rod for pushing the pushing plate to move is fixedly mounted on the left fixed plate, a connecting plate is fixedly connected to the right side of the output shaft of the driving motor, and a connecting component is installed in the through hole of the movable plate; The connection assembly includes a hollow ring movably installed inside the through hole, a plurality of clamping components are evenly installed on the inner ring wall of the hollow ring, a plurality of pushing rods are evenly installed on the edge of the right side of the connection disk and plugged with the hollow ring, a connection component is installed inside the hollow ring, and a friction block is detachably installed at the center of the right side of the connection disk; The bending resistance detection mechanism includes a gantry fixedly mounted on the base platform, a hydraulic push rod 2 is fixedly mounted on the horizontal section of the gantry, a mounting seat is fixedly connected to the bottom of the pushing section of the hydraulic push rod 2, a lower pressure head is fixedly connected to the bottom of the mounting seat, a group of elastic telescopic rods 2 are hinged on both sides of the left and right sides of the mounting seat, the number of each group of elastic telescopic rods 2 is two, and a locking component for locking the clamping component is commonly mounted on the ends of the two elastic telescopic rods 2 away from the mounting seat; The clamping component is a three-jaw chuck, and the locking assembly includes a locking block that is slidably arranged left and right. A pin rod is fixedly connected to the clamping claw of the clamping component, and a plurality of pin holes that are plugged into and matched with the pin rod are opened on the locking block; when the pin rod is plugged into the pin hole, the three clamping claws of the three-jaw chuck are connected together.

2. A cemented carbide tool head performance detection device according to claim 1, characterized in that: The number of the supports is two and they are distributed between the left and right clamping parts. The top of the supports is provided with an arc-shaped groove which is concave downwards.

3. A cemented carbide tool head performance detection device according to claim 1, characterized in that: Guide rods are fixedly connected between the four corners of the left and right fixed plates, and the movable plate and the pushing plate are slidably installed between the four guide rods. The right side of the pushing section of the hydraulic push rod is fixedly connected to the left side of the pushing plate, and an electric push rod for pushing the movable plate to move is fixedly installed on the base, and the right side of the pushing section of the electric push rod is fixedly connected to the bottom of the movable plate.

4. The cemented carbide tool head performance detection device according to claim 1, characterized in that: A baffle plate 1 for shielding the left end of the through hole is installed on the left side of the movable plate for sliding back and forth. A moving component for driving the baffle plate 1 to move back and forth is also installed on the left side of the movable plate. The moving component includes an elastic telescopic rod 1 fixedly connected to the left side of the movable plate and symmetrically distributed about the through hole. A linkage rod is hinged between the left side of the telescopic section of the elastic telescopic rod and the front end of the baffle plate 1. A guide rod 1 symmetrically distributed about the through hole is fixedly connected to the left side of the movable plate. The baffle plate 1 is installed between the upper and lower guide rods 1 for sliding back and forth. A return spring 1 is fixedly connected between the rear side of the baffle plate 1 and the inner wall of the movable plate.

5. The cemented carbide tool head performance detection device according to claim 1, characterized in that: A plurality of insertion holes for inserting the pushing rods are evenly arranged on the left side of the hollow ring in the circumferential direction; and the locking block is located between the adjacent clamping parts and the support.

6. A cemented carbide tool head performance detection device according to claim 5, characterized in that: The clamping component includes a wedge-shaped clamping block which is slidably installed along the radial direction of the hollow ring, and a ball is rotatably installed on one end of the wedge-shaped clamping block close to the center of the hollow ring. An inner groove is provided on the right side of the wedge-shaped clamping block, and a baffle plate 2 located in the inner groove is fixedly connected to the right inner wall of the hollow ring. A return spring 2 is fixedly connected between the side of the baffle plate 2 away from the center of the hollow ring and the inner wall of the wedge-shaped clamping block, and the right end of the pushing rod is slidably matched with the inclined surface of the end of the wedge-shaped clamping block away from the center of the hollow ring.

7. A cemented carbide tool head performance detection device according to claim 5, characterized in that: The connecting component includes a plurality of limit rods which are slidably installed along the radial direction of the hollow ring and are evenly distributed in the circumferential direction. The limit rod is located at the outer side of the corresponding pushing rod. The hollow ring is provided with a hole groove for sliding the end of the limit rod away from the center of the hollow ring. The inner wall of the through hole is provided with a slot which is plugged and matched with the end of the limit rod away from the center of the hollow ring. A limit block is slidably installed on the end of the limit rod close to the center of the hollow ring. Teeth and tooth grooves are respectively installed on the opposite sides of the limit block and the corresponding pushing rod, and the teeth and tooth grooves cooperate with each other. A reset spring three is fixedly connected between the limit block and the limit rod. A displacement component for driving the limit rod to displace is also installed on the hollow ring.

8. A cemented carbide tool head performance detection device according to claim 7, characterized in that: The shifting component includes a guide block rotatably connected to the right end of the limit rod, a rotating ring located on the right side of the limit rod is rotatably installed inside the hollow ring, a plurality of arc-shaped through grooves evenly distributed circumferentially are provided on the rotating ring, the guide block slides in cooperation with the arc-shaped through grooves one by one, a pushing rod is fixedly connected to the right side of the rotating ring, a movable groove for the pushing rod to deflect is provided on the right side of the hollow ring, a positioning plate located on the right side of the hollow ring is fixedly connected to the right end of the pushing rod, a fixing bolt is fixedly connected to the positioning plate, two fixing holes threadedly matched with the fixing bolt are provided on the right side of the hollow ring, and when the pushing rod is rotated to one end of the movable groove, the fixing bolt is just coaxially aligned with one of the fixing holes.

9. A cemented carbide tool head performance detection device according to claim 1, characterized in that: A connecting rod is hinged at one end of the top of the locking block, and a fastening bolt is threadedly connected to one end of the connecting rod away from the locking block. The connecting rod is connected and locked to the other end of the top of the locking block through the fastening bolt.

10. The cemented carbide tool head performance detection device according to claim 1, characterized in that: The top of the mounting seat is fixedly connected to a guide rod 2 which is symmetrically distributed front and back about the hydraulic push rod 2, and the guide rod 2 is connected to the gantry frame for vertical sliding connection.

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