Cutting device for hard alloy round bar

Abstract

The invention discloses a hard alloy round bar cutting device which comprises a cutting table and further comprises a knife rest, one end of the knife rest is hinged to the cutting table, a cutting wheel and a connecting frame are installed at the other end of the knife rest, one end of the connecting frame is hinged to the cutting table, the other end of the connecting frame is rotationally connected with a grinding wheel, and the grinding wheel is located below the cutting wheel and is in transmission connection with the cutting wheel. A connecting frame is installed on the cutting table, a lap joint rod in lap joint with the bottom of the connecting frame is installed on the knife rest, an electric telescopic rod is hinged between the knife rest and the cutting table, a through rail allowing the electric telescopic rod to penetrate through is arranged in the middle of the connecting frame, and the bearing clamping mechanism is installed on the table top of the cutting table and is in transmission fit with the connecting frame. And when the tool rest overturns downwards, the lap joint rod is separated from the connecting frame, and the grinding wheel grinds the cutting edge of the cutting wheel. Through the arrangement of the connecting frame and the grinding wheel, when the tool rest overturns downwards for cutting, the connecting frame can be automatically erected on the cutting table, and the grinding wheel is driven by the cutting wheel to automatically grind a circle of cutting edge of the cutting wheel.

Description

Technical Field

[0001] The invention relates to the technical field of cemented carbide processing, in particular to a cutting device for cemented carbide round rods. Background Art

[0002] Cemented carbide, with its excellent hardness, wear resistance and corrosion resistance, plays a vital role in industrial production, especially in the manufacture of high-precision cutting tools, wear-resistant parts and working parts in high temperature environments. Cemented carbide round bars have become the preferred material. However, due to its high hardness and high density, special cutting equipment is also required for cutting cemented carbide round bars.

[0003] The patent publication number of the existing patent application is: CN206747698U, and the publication date is December 15, 2017. The name of the patent is "A cutting device for a hard alloy round rod". The patent includes a base, a cutting box is installed on the upper end of the base, a cylinder is installed in the middle of the lower end of the base, the cylinder is connected to a movable plate through a cylinder rod, and a servo motor is installed on the upper end of the movable plate through a mounting frame. A positioning device is provided inside the top right side of the cutting box, and a fixing device is provided on the top left side of the cutting box. A hard alloy round rod is fixed between the positioning device and the fixing device, and a scale is provided on the rear surface of the top right side of the cutting box. The switch is electrically connected to the servo motor. The patent has a simple structure and a long service life. According to the length of the hard alloy round rod to be cut, the distance between the positioning device and the fixing device can be adjusted by observing the scale. After the hard alloy round rod is positioned and fixed, the positioning device and the fixing device are locked, and the hard alloy round rod is firmly fixed and the cutting efficiency is high.

[0004] The above application has shortcomings. First, the cutting tool is easy to wear and cannot be effectively polished in time after wear. It is often necessary to remove the tool and polish it separately, resulting in reduced cutting efficiency and quality. Second, the quality of the cut surface of the workpiece after cutting is not high and requires additional polishing steps. If the cut surface is not polished, the burrs on the end face can easily cause injury to the workers, and it is inconvenient to quickly transfer the cut workpiece. Summary of the invention

[0005] The purpose of the present invention is to provide a cutting device for cemented carbide round rods to solve the deficiencies in the above-mentioned prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions: A cutting device for carbide round rods, comprising a cutting table, and a tool holder, one end of which is hinged on the cutting table and the other end of which is equipped with a cutting wheel; a connecting frame, one end of which is hinged to the cutting table and the other end of which is rotatably connected to a grinding wheel, the grinding wheel is located below the cutting wheel, and the two are transmission-connected, the tool holder is equipped with a lap rod overlapped with the bottom of the connecting frame; an electric telescopic rod is hinged between the tool holder and the cutting table, a through rail for the electric telescopic rod to pass through is provided in the middle of the connecting frame, and the width of the through rail is equal to the outer diameter of the electric telescopic rod; a pair of tension wheels are installed on the tool holder, the connecting frame Both sides of the connecting frame are rotatably connected with transmission pulleys, the tensioning wheel, the cutting wheel and the transmission pulley are connected to each other through a first transmission belt, and the transmission pulley and the grinding wheel are connected to each other through a second transmission belt; a supporting clamping mechanism is installed on the cutting table surface, the grinding wheel is located in the middle of the supporting clamping mechanism, and the supporting clamping mechanism is in transmission cooperation with the connecting frame, when the tool holder is flipped downward, the overlapping rod is disengaged from the connecting frame, and the grinding wheel grinds the blade of the cutting wheel, and when the tool holder is flipped upward, the connecting frame is pulled to grind the cutting surface of the workpiece through the side of the grinding wheel.

[0007] Preferably, a back plate is installed on the back of the cutting table, a connecting seat is installed on the front surface of the back plate, and the tool holder and the connecting frame are both hinged to the connecting seat.

[0008] Preferably, the supporting and clamping mechanism includes a pair of brackets slidably mounted on the cutting table surface, each of the brackets is mounted with a clamping frame, a lifting mechanism connected to the two clamping frames is installed inside the cutting table, a bidirectional screw rod is threadedly installed between the two brackets, a pressure adjustment piece is slidably mounted on the cutting table surface, one end of the pressure adjustment piece is abutted and cooperated with the bottom of the connecting frame, and the other end is transmission connected to the bidirectional screw rod.

[0009] Preferably, the pressure adjustment member includes a transmission rack slidably mounted on the cutting table surface, a driven gear meshing with one end of the transmission rack is fixedly sleeved in the middle of the bidirectional lead screw, a top spring is connected between the bottom of the transmission rack and the cutting table, and the other end of the transmission rack is fixedly connected to an abutment column in contact with the bottom surface of the connecting frame.

[0010] Preferably, a pushing assembly is installed in one of the brackets, and when the connecting frame is not lifted, the axle of the grinding wheel is transmission-connected with the pushing assembly; a unloading assembly is movably installed outside the other bracket, and when the connecting frame is flipped downward, the axle of the grinding wheel abuts and cooperates with the unloading assembly.

[0011] Preferably, the pushing assembly includes a pair of pushing worm gears rotatably mounted in one of the brackets, a worm screw meshing with the pair of pushing worm gears being horizontally rotatably mounted on the bracket, a transmission gear is installed in the cutting table, the transmission gear and the worm screw are connected via a belt drive, and one end of the grinding wheel axle is fixedly connected to a driving gear meshing with the top of the transmission gear.

[0012] Preferably, the unloading assembly includes a unloading rack movably mounted outside one of the brackets, a receiving groove is provided on one side of the unloading rack, a limiting block is fixedly connected to the bottom of the receiving groove and abuts against the bottom of the abutment block, and the grinding wheel axle abuts against the top of the abutment block.

[0013] Preferably, a storage box is installed on the cutting table, and the storage box is located in front of the unloading assembly.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a connecting frame and a grinding wheel. When the tool holder is flipped downward for cutting, the connecting frame can be placed on the cutting table by itself because the overlapping rod is separated from the connecting frame. After the cutting is completed, if the tool holder continues to rotate downward, it will contact the grinding wheel. The grinding wheel automatically grinds a circle of blades of the cutting wheel under the drive of the cutting wheel, thereby ensuring the sharpness of the cutting tool at any time and improving the cutting efficiency and quality. When the tool holder is flipped upward to complete the cutting, the overlapping rod will pull the connecting frame, allowing the supporting clamping mechanism to form a gap between the two alloy round bars for the grinding wheel to enter, so that the grinding wheel can be moved to the position of the cutting surface of the workpiece, and the cut end surfaces of the two carbide round bars are ground by the side of the grinding wheel. No additional grinding process is required, thereby reducing processing cost and time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of a cutting device for a cemented carbide round rod according to the present invention; Figure 2 A side view of a cutting device for a cemented carbide round rod according to the present invention; Figure 3 It is a structural schematic diagram of a tool holder and a connecting frame in a cutting device for a cemented carbide round rod of the present invention; Figure 4 It is an overall schematic diagram of a connecting frame in a cutting device for a cemented carbide round rod of the present invention; Figure 5 It is a schematic diagram of the connection between the cutting table and the supporting clamping mechanism in a cutting device for a hard alloy round rod of the present invention; Figure 6 It is a structural schematic diagram of a supporting and clamping mechanism in a cutting device for a cemented carbide round rod of the present invention; Figure 7 It is a structural schematic diagram of a pressing adjustment member in a cutting device for a hard alloy round rod of the present invention; Figure 8 It is a schematic diagram of the overall structure of one of the brackets in a cutting device for a cemented carbide round rod of the present invention; Fig. 9 The figure is a schematic diagram of the overall structure of another bracket in a cutting device for a cemented carbide round rod according to the present invention.

[0017] Description of reference numerals: 1. Cutting table; 101. Back plate; 102. Connecting seat; 103. Storage box; 2. Tool holder; 201. Cutting wheel; 202. Overlap rod; 203. Electric telescopic rod; 204. Tensioner; 205. First transmission belt; 206. Connecting shaft; 207. Through groove; 208. Compression spring; 3. Connecting frame; 301. Grinding wheel; 302. Through rail; 303. Transmission pulley; 304. Second transmission belt; 305. Driving gear; 4. Supporting and clamping mechanism; 401 , bracket; 402, clamping frame; 403, two-way screw; 404, driven gear; 5, lifting mechanism; 6, pressure adjustment member; 601, transmission rack; 602, top spring; 603, abutment column; 7, pushing assembly; 701, pushing worm wheel; 702, worm; 703, transmission gear; 704, belt; 8, unloading assembly; 801, unloading frame; 802, receiving groove; 803, abutment block; 804, limit block; 805, insertion rod; 806, reset spring. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0019] See also Figure 1-9A cutting device for a cemented carbide round rod provided by an embodiment of the present invention comprises a cutting table 1, and also comprises a tool holder 2, one end of which is hinged on the cutting table 1, and a cutting wheel 201 is installed at the other end, a connecting frame 3, one end of which is hinged to the cutting table 1, and a grinding wheel 301 is rotatably connected to the other end, the grinding wheel 301 is located below the cutting wheel 201, and the two are connected in a transmission manner, a lap rod 202 overlapped with the bottom of the connecting frame 3 is installed on the tool holder 2, an electric telescopic rod 203 is hinged between the tool holder 2 and the cutting table 1, a through rail 302 for the electric telescopic rod 203 to pass through is provided in the middle of the connecting frame 3, and the width of the through rail 302 is equal to the outer diameter of the electric telescopic rod 203; a pair of tension wheels 204 are installed on the tool holder 2, a connecting shaft 206 is installed between the pair of tension wheels 204, and a through groove for the connecting shaft 206 to move is provided on the tool holder 2 207, a compression spring 208 that is against the connecting shaft 206 is installed in the through groove 207, and a transmission pulley 303 is rotatably connected to both sides of the connecting frame 3. A transmission shaft that runs through the connecting frame 3 is installed between the two transmission pulleys 303, and the tensioning wheel 204 is connected to the cutting wheel 201 and the transmission pulley 303 through the first transmission belt 205, and the transmission pulley 303 is connected to the grinding wheel 301 through the second transmission belt 304; the supporting clamping mechanism 4 is installed on the table top of the cutting table 1, and the grinding wheel 301 is located in the middle of the supporting clamping mechanism 4. The supporting clamping mechanism 4 is coordinated with the connecting frame 3 in transmission. When the tool holder 2 is flipped downward, the lap rod 202 is separated from the connecting frame 3, and the grinding wheel 301 grinds the blade of the cutting wheel 201. When the tool holder 2 is flipped upward, the connecting frame 3 is pulled, and the cutting surface of the workpiece is grinded through the side of the grinding wheel 301.

[0020] Specifically, the tool holder 2 can be flexibly flipped up and down on the cutting table 1, and the cutting wheel 201 at the other end of the tool holder 2 is used to cut the carbide round rod. The connecting frame 3 can also be flipped up and down, but its upward flipping is completed by the traction of the tool holder 2 flipping up. The grinding wheel 301 at the end of the connecting frame 3 is located directly below the cutting wheel 201, and the two are connected by a transmission mechanism to ensure that the two can rotate synchronously at a certain ratio. An annular grinding groove is provided on the outer peripheral surface of the grinding wheel 301. After the tool holder 2 rotates downward with the cutting wheel 201 toward the grinding wheel 301, the blade on the cutting wheel 201 and the annular grinding groove on the grinding wheel 301 rub against each other to grind the blade of the cutting wheel 201. The supporting clamping mechanism 4 is used to stably clamp the carbide round rod to be cut and ensure that it is located in the middle of the grinding wheel 301. A transmission matching mechanism is also designed between the supporting and clamping mechanism 4 and the connecting frame 3. When the connecting frame 3 rotates upward, a gap is left between the left and right carbide rods that have been cut for the grinding wheel 301 to enter. When the carbide round rod needs to be cut, the operator controls the tool holder 2 to flip downward. At this time, the overlapping rod 202 is out of contact with the connecting frame 3. The connecting frame 3 is placed on the cutting table 1 under the action of its own gravity, so that the grinding wheel 301 is located below the supporting and clamping mechanism 4. When the cutting wheel 201 is working, it cuts the round rod placed on the supporting and clamping mechanism 4. After cutting is completed, the tool holder 2 is flipped upward again, the overlapping rod 202 is re-lapped on the connecting frame 3, and the grinding wheel 301 is driven to rotate through the transmission mechanism. At this time, the side of the grinding wheel 301 is in contact with the cutting surface of the workpiece, and the cutting surface is ground to improve the surface quality of the workpiece. Further explanation, an electric telescopic rod 203 is hinged between the tool holder 2 and the cutting table 1, and a through rail 302 for the electric telescopic rod 203 to pass through is provided in the middle of the connecting frame 3, and the width of the through rail 302 is equal to the outer diameter of the electric telescopic rod 203. Specifically, the top end of the electric telescopic rod 203 is hinged to the bottom of the tool holder 2, and the bottom end is hinged to the cutting table 1. The flipping action of the tool holder 2 can not only be achieved by manual operation, but also by driving the electric telescopic rod 203 to accurately control the flipping angle and speed, thereby improving the cutting accuracy and efficiency. At the same time, In order to cooperate with the movement of the electric telescopic rod 203, a through rail 302 is specially opened in the middle of the connecting frame 3. The width of the through rail 302 is equal to the outer diameter of the electric telescopic rod 203, ensuring that the electric telescopic rod 203 can smoothly pass through the connecting frame 3 without any hindrance during the telescopic process. At the same time, the electric telescopic rod 203 is also used to avoid the deviation of the connecting frame 3 during the up and down rotation. This design not only ensures the freedom of movement of the electric telescopic rod 203, but also ensures that the grinding wheel 301 on the connecting frame 3 will not deviate left and right, so that the grinding accuracy is higher.

[0021] It is further explained that the pair of tensioning wheels 204 on the tool holder 2 are rotated synchronously through a connecting shaft 206, and the connecting shaft 206 can move freely in the through rail 302 opened on the tool holder 2. At the same time, in order to ensure that the tensioning wheel 204 always maintains a certain tensioning force, a compression spring 208 that is against the connecting shaft 206 is also installed in the through rail 302. The compression spring 208 provides a continuous and stable thrust for the tensioning wheel 204. When the cutting wheel 201 is driven to rotate, it will drive the transmission belt wheel 303 to rotate synchronously through the first transmission belt 205, and then drive the grinding wheel 301 to rotate through the second transmission belt 304. At the same time, the coordinated use of the tensioning wheel 204 and the compression spring 208 ensures the tension and stability of the first transmission belt 205, thereby improving the reliability and durability of the entire transmission system.

[0022] Compared with the prior art, the embodiment of the present invention provides a connecting frame 3 and a grinding wheel 301. When the tool holder 2 is flipped downward for cutting, the connecting rod 202 is detached from the connecting frame 3, and the connecting frame 3 can be placed on the cutting table 1 by itself. After the cutting is completed, if the tool holder 2 continues to rotate downward, it will contact the grinding wheel 301. The grinding wheel 301 automatically grinds a circle of blades of the cutting wheel 201 under the drive of the cutting wheel 201, thereby ensuring the sharpness of the cutting tool at any time and improving the cutting efficiency and quality. When the tool holder 2 is flipped upward to complete the cutting, the connecting rod 202 will pull the connecting frame 3, allowing the supporting clamping mechanism 4 to form a gap between the two alloy round bars for the grinding wheel 301 to enter, so that the grinding wheel 301 can be moved to the position of the cutting surface of the workpiece, and the cut end faces of the two carbide round bars are ground by the side of the grinding wheel 301, without the need for an additional grinding process, thereby reducing processing cost and time.

[0023] In a further embodiment of the present invention, a back plate 101 is installed on the back of the cutting table 1, and a connecting seat 102 is installed on the front surface of the back plate 101. The tool holder 2 and the connecting frame 3 are both hinged to the connecting seat 102. The connecting seat 102 is designed with a hinge hole for hinged connection with the tool holder 2 and the connecting frame 3. Specifically, one end of the tool holder 2 is connected to the first hinge hole on the connecting seat 102 through a hinge axis, thereby realizing flexible flipping of the tool holder 2 relative to the cutting table 1. Similarly, one end of the connecting frame 3 is also connected to the second hinge hole on the connecting seat 102 through a hinge axis, thereby ensuring that the connecting frame 3 can be stably flipped relative to the cutting table 1, so that the tool holder 2 and the connecting frame 3 can move more stably and flexibly.

[0024] In a further embodiment of the present invention, the supporting and clamping mechanism 4 includes a pair of brackets 401 slidably mounted on the surface of the cutting table 1, and each bracket 401 is movably plugged with a clamping frame 402. A lifting mechanism 5 connected to the two clamping frames 402 is installed inside the cutting table 1, and a two-way screw rod 403 is threadedly installed between the two brackets 401. A pressure adjustment member 6 is slidably mounted on the surface of the cutting table 1, and one end of the pressure adjustment member 6 is abutted and matched with the bottom of the connecting frame 3, and the other end is transmission-connected to the two-way screw rod 403. Specifically, the lifting mechanism 5 is connected to the two clamping frames 402, and can realize the independent lifting and lowering of the clamping frames 402. , the alloy round rod placed on the bracket 401 can be pressed by the clamping frame 402 during cutting and grinding. At the same time, the distance between the two clamping frames 402 can be easily and quickly adjusted through the linkage control of the bidirectional screw rod 403 and the pressure adjustment member 6. When the cutting is completed, when the tool holder 2 is lifted with the connecting frame 3, the pressure adjustment member 6 moves forward to drive the bidirectional screw rod 403 to rotate, so that the distance between the two clamping frames 402 becomes larger, so that there is space for the grinding wheel 301 to enter between the original alloy round rod and the cut alloy round rod, which is convenient for the subsequent grinding wheel 301 to grind the cut surfaces of the two alloy round rods at the same time.

[0025] In a further embodiment of the present invention, the pressure adjustment member 6 includes a transmission rack 601 slidably mounted on the surface of the cutting table 1, a driven gear 404 meshing with one end of the transmission rack 601 is fixedly sleeved in the middle of the bidirectional lead screw 403, a top spring 602 is connected between the bottom of the transmission rack 601 and the cutting table 1, and the other end of the transmission rack 601 is fixedly connected to an abutment column 603 in contact with the bottom surface of the connecting frame 3. Specifically, the top spring 602 provides an outward force on the transmission rack 601, so that the abutment column 603 at the end of the transmission rack 601 can abut the connecting frame 3 from below, and when the connecting frame 3 is pulled up by the tool holder 2, the abutment column 603 is not squeezed by the connecting frame 3. The gear rack 601 is moved back and forth to drive the two-way screw rod 403 to rotate, thereby driving the clamping frames 402 on both sides to move away from each other, so that there is a gap between the alloy round bars on the two brackets 401 that is large enough for the grinding wheel 301 to enter, and the grinding wheel 301 can reach the cutting surface of the two sections of the alloy round bars without loosening the clamping frames 402 on the brackets 401, so that the grinding efficiency is high. When the grinding is completed, the connecting frame 3 rotates downward again to squeeze the abutment column 603, and the entire gear rack 601 will move backward and drive the two-way screw rod 403 to rotate in the opposite direction, so that the two brackets 401 can be reset to facilitate continuous operation.

[0026] In a further embodiment of the present invention, a pushing assembly 7 is installed in one of the brackets 401. When the connecting frame 3 is not lifted, the axle of the grinding wheel 301 is transmission-connected with the pushing assembly 7. A discharge assembly 8 is movably installed outside the other bracket 401. When the connecting frame 3 is flipped downward, the axle of the grinding wheel 301 abuts against the discharge assembly 8. Specifically, a pushing assembly 7 is integrated in one of the brackets 401. When the connecting frame 3 is not lifted, the axle of the grinding wheel 301 can be transmission-connected with the axle of the grinding wheel 301. The rotation of the grinding wheel 301 drives the pushing assembly 7 to push the bracket 401. The carbide round rod can be easily pushed onto another bracket 401. At the same time, a discharge assembly 8 is installed on the outside of the other bracket 401, so that when the grinding is completed and the connecting frame 3 is flipped from top to bottom, the axle of the grinding wheel 301 can be abutted and matched with the discharge assembly 8, and the cut section of the alloy round rod in the bracket 401 is pushed out by the discharge assembly 8. Through the lifting and falling action of the connecting frame 3, the interactive state of the grinding wheel 301, the pushing assembly 7 and the discharge assembly 8 are quickly switched, thereby realizing the automatic control of the grinding process and the convenient unloading of the material after grinding.

[0027] In a further embodiment of the present invention, the push assembly 7 includes a pair of push worm wheels 701 rotatably mounted in one of the brackets 401, a worm 702 meshing with the pair of push worm wheels 701 is horizontally rotatably mounted on the bracket 401, a transmission gear 703 is installed in the cutting table 1, the transmission gear 703 and the worm 702 are connected by a belt 704, and one end of the axle of the grinding wheel 301 is fixedly connected to a driving gear 305 meshing with the top of the transmission gear 703. Specifically, the pair of push worm wheels 701 are synchronously rotated by the worm 702 meshing therewith, and the worm 702 is horizontally mounted on the same bracket 401 as the push worm wheel 701. A transmission is established between the transmission gear 703 and the worm 702 in the cutting table 1 through the belt 704. When the connecting frame 3 is normally placed on the cutting table 1, the driving gear 305 at one end of the axle of the grinding wheel 301 is meshed with the top of the transmission gear 703. Therefore, when the grinding wheel 301 rotates, the worm 702 is driven to rotate. At this time, if the clamping frame 402 releases the carbide round rod, the worm wheel rotating under the drive of the worm 702 pushes the carbide round rod on one of the brackets 401 toward the other bracket 401, providing auxiliary power for the feeding of the alloy round rod, thereby greatly improving the automation degree and operation convenience of the entire cutting and grinding equipment.

[0028] In a further embodiment of the present invention, the unloading assembly 8 includes a unloading frame 801 movably mounted on the outside of one of the brackets 401, a plug rod 805 plugged into the back side of the bracket 401 is installed on the unloading frame 801, a reset spring 806 is sleeved on the plug rod 805, a receiving groove 802 is opened on one side of the unloading frame 801, a limit block 804 abutting against the bottom of the abutment block 803 is fixedly connected to the bottom of the receiving groove 802, the axle of the grinding wheel 301 abuts against the top of the abutment block 803, specifically, the plug rod 805 installed on the unloading frame 801 forms a plug-in fit with the back side of the bracket 401, ensuring that the unloading frame 801 can be firmly mounted on the bracket 401 when unloading is not required, and a reset spring 806 is sleeved to realize the automatic reset function, a torsion spring is installed on the rotating shaft on the abutment block 803, and the abutment block 803 is pressed against the bottom of the abutment block 803 under the action of the torsion spring. The top of 803 rotates out of the accommodating groove 802 and is in an inclined state. At the same time, the limit block 804 can prevent the abutment block 803 from rotating out completely. When the clamping frame 402 is loosened, the connecting frame 3 rotates downward with the grinding wheel 301 after grinding the round rod. The axle on the grinding wheel 301 abuts against the inclined top of the abutment block 803 under the action of gravity, and forces the entire unloading frame 801 to move forward, causing the unloading frame 801 to push the cut round rods on the corresponding bracket 401 to the workpiece placement area, so that the cut workpieces can be quickly removed. After the workpieces are pushed out and the axle of the grinding wheel 301 is removed from the abutment block 803, the reset spring 806 allows the unloading frame 801 to move backward and reset, thereby avoiding the remaining round rods from being blocked by the unloading frame 801 when they are pushed onto the bracket 401, so as to achieve continuous and stable operation.

[0029] In a further embodiment of the present invention, a storage box 103 is installed on the cutting table 1, and the storage box 103 is located in front of the unloading assembly 8. Specifically, when the cutting and grinding operation is completed, the unloading assembly 8 is pushed forward to smoothly unload the processed workpiece from the bracket 401. Since the storage box 103 is located just in front of the unloading assembly 8, the unloaded material will fall directly into the storage box 103, thereby realizing the rapid collection and sorting of materials. Such a design not only improves the working efficiency, but also ensures the cleanliness and safety of the working environment, and the staff does not need to take the workpiece under the tool.

[0030] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A cutting device for a cemented carbide round rod, comprising a cutting table (1), characterized in that: Also includes: A tool holder (2), one end of which is hinged to the cutting table (1) and the other end of which is provided with a cutting wheel (201); A connecting frame (3) is hinged at one end to the cutting table (1), and is rotatably connected to a grinding wheel (301) at the other end; the grinding wheel (301) is located below the cutting wheel (201), and the two are transmission-connected; a lap rod (202) is mounted on the tool holder (2) and overlaps the bottom of the connecting frame (3); an electric telescopic rod (203) is hinged between the tool holder (2) and the cutting table (1); a through rail (303) is provided in the middle of the connecting frame (3) for the electric telescopic rod (203) to pass through. 2), and the width of the through rail (302) is equal to the outer diameter of the electric telescopic rod (203); a pair of tensioning wheels (204) are installed on the tool holder (2), and both sides of the connecting frame (3) are rotatably connected to transmission pulleys (303), the tensioning wheel (204) and the cutting wheel (201) and the transmission pulley (303) are connected to each other through a first transmission belt (205), and the transmission pulley (303) and the grinding wheel (301) are connected to each other through a second transmission belt (304); A supporting and clamping mechanism (4) is mounted on the cutting table (1), the grinding wheel (301) is located in the middle of the supporting and clamping mechanism (4), and the supporting and clamping mechanism (4) is in transmission cooperation with the connecting frame (3); When the tool holder (2) flips downward, the lap rod (202) is separated from the connecting frame (3), and the grinding wheel (301) grinds the blade of the cutting wheel (201); when the tool holder (2) flips upward, the connecting frame (3) is pulled, and the cutting surface of the workpiece is grinded through the side of the grinding wheel (301).

2. A cutting device for cemented carbide round rods according to claim 1, characterized in that: A back plate (101) is installed on the back of the cutting table (1), a connecting seat (102) is installed on the front surface of the back plate (101), and the knife holder (2) and the connecting frame (3) are both hingedly connected to the connecting seat (102).

3. A cutting device for cemented carbide round rods according to claim 1 or 2, characterized in that: The supporting and clamping mechanism (4) comprises a pair of brackets (401) slidably mounted on the surface of the cutting table (1), each bracket (401) being mounted with a clamping frame (402), a lifting mechanism (5) connected to the two clamping frames (402) being mounted inside the cutting table (1), a bidirectional screw rod (403) being threadedly installed between the two brackets (401), a pressing adjustment member (6) being slidably mounted on the surface of the cutting table (1), one end of the pressing adjustment member (6) being in abutment with the bottom of the connecting frame (3), and the other end being drivingly connected with the bidirectional screw rod (403).

4. A cutting device for cemented carbide round rods according to claim 3, characterized in that: The pressure adjustment member (6) comprises a transmission rack (601) slidably mounted on the surface of the cutting table (1); a driven gear (404) meshing with one end of the transmission rack (601) is fixedly sleeved in the middle of the bidirectional lead screw (403); a top spring (602) is connected between the bottom of the transmission rack (601) and the cutting table (1); and an abutment column (603) in contact with the bottom surface of the connecting frame (3) is fixedly connected to the other end of the transmission rack (601).

5. The cutting device for cemented carbide round rods according to claim 3, characterized in that: A pushing assembly (7) is installed in one of the brackets (401); when the connecting frame (3) is not lifted, the axle of the grinding wheel (301) is drivingly connected to the pushing assembly (7); and a discharge assembly (8) is movably installed outside the other bracket (401); when the connecting frame (3) is turned downward, the axle of the grinding wheel (301) is abutted and matched with the discharge assembly (8).

6. A cutting device for cemented carbide round rods according to claim 5, characterized in that: The pushing assembly (7) comprises a pair of pushing worm wheels (701) rotatably mounted in one of the brackets (401); a worm (702) meshing with the pair of pushing worm wheels (701) is horizontally rotatably mounted on the bracket (401); a transmission gear (703) is mounted in the cutting table (1); the transmission gear (703) and the worm (702) are connected to each other via a belt (704); and a driving gear (305) meshing with the top of the transmission gear (703) is fixedly connected to one end of the axle of the grinding wheel (301).

7. The cutting device for cemented carbide round rods according to claim 5, characterized in that: The unloading assembly (8) comprises a unloading frame (801) movably mounted outside one of the brackets (401); a receiving groove (802) is provided on one side of the unloading frame (801); an abutment block (803) is elastically hinged in the receiving groove (802); a limit block (804) is fixedly connected to the bottom of the receiving groove (802) and abuts against the bottom of the abutment block (803); and the axle of the grinding wheel (301) abuts against the top of the abutment block (803).

8. The cutting device for cemented carbide round rods according to claim 5, characterized in that: A storage box (103) is installed on the cutting table (1), and the storage box (103) is located in front of the unloading assembly (8).

Images