A surface polishing device for cemented carbide inserts

Abstract

The present application relates to the technical field of tool surface treatment, in particular to a hard alloy blade surface polishing device, which comprises a rack and circular saw blades, the rack top is provided with a blade supply mechanism for alternately supplying two groups of circular saw blades, the rack top middle part is fixedly provided with a continuous switching mechanism for intermittently switching the sawtooth grooves of the circular saw blades in the polishing station and polishing the sawtooth grooves, and the rack top is further provided with a blade polishing mechanism for synchronously polishing the two sides of the circular saw blades; the continuous switching mechanism comprises a side frame fixed on the rack top, and reciprocating lifting assemblies and reciprocating feeding assemblies are respectively arranged on the two sides of the side frame, the cooperation among the blade supply mechanism, the blade polishing mechanism and the continuous switching mechanism is utilized to realize synchronous polishing of the two side surfaces of the circular saw blades and the sawtooth grooves of the circular saw blades, and the polishing efficiency of the circular saw blades is improved.

Description

Technical Field

[0001] This invention relates to the field of cutting tool surface treatment technology, specifically a device for polishing the surface of cemented carbide cutting tools. Background Technology

[0002] Carbide inserts are characterized by high strength and hardness, good wear resistance and oxidation resistance, and high cutting speed and cutting life. After the inserts are manufactured, their surfaces need to be polished to reduce friction and wear during cutting, increase the insert's hardness and wear resistance, and extend the tool's service life.

[0003] The prior art discloses Chinese Patent No. CN 118809388 B: a circular saw blade polishing device, which discloses that an electric push rod I is installed on a fixed base, the electric push rod I is connected to a moving plate, the moving plate is provided with two movable plates that can be raised and lowered, and the movable plate is provided with a polishing component for polishing the circular saw blade. The electric push rod I can drive the polishing belt to move back and forth along the radial direction of the circular saw blade to polish the surface of the circular saw blade.

[0004] However, the aforementioned existing technology still has certain drawbacks. In use, it can only grind the two sides of the circular saw blade, while grinding the saw tooth grooves on the circular saw blade requires other grinding equipment, resulting in low grinding efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a surface polishing device for cemented carbide cutting tools to solve the problems mentioned in the background art.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A carbide blade surface polishing device includes a frame and a circular saw blade. The top of the frame is equipped with a blade supply mechanism for alternately supplying two sets of circular saw blades. The top center of the frame is fixedly equipped with a continuous switching mechanism for intermittently changing the saw tooth groove of the circular saw blade at the polishing station and grinding the saw tooth groove. The top of the frame is also equipped with a blade grinding mechanism for synchronously grinding both sides of the circular saw blade.

[0008] The continuous switching mechanism includes a side frame fixed to the top of the frame, with a reciprocating lifting assembly and a reciprocating feeding assembly installed on both sides of the side frame, respectively.

[0009] In a preferred embodiment, the blade supply mechanism includes a slide groove 1 opened on the top of the frame, a slide block 1 slidably installed inside the slide groove 1, and a screw 1 rotatably installed inside the slide groove 1 for driving the slide block 1 to move along the slide groove 1. The screw 1 is driven to rotate by a motor fixedly installed on the outside of the frame. Vertical frames are fixedly provided at both ends of the top of the slide block 1, and blade mounting assemblies are installed at the top of the two vertical frames. The circular saw blade is detachably mounted on the blade mounting assembly.

[0010] In a preferred embodiment, the blade mounting assembly includes an I-shaped ring column that is rotatably mounted through the top of the vertical frame. One end of the I-shaped ring column is provided with a ring disk. A core column is fixedly provided on the side of the I-shaped ring column facing the ring disk. The end face of the core column is provided with column holes that are evenly distributed in a ring around the core column. A slot and a positioning groove are provided on the outer side of the core column. An insert post that matches the column hole is fixedly provided on one side of the ring disk. A positioning strip that matches the positioning groove is fixedly provided on the inner side of the ring disk.

[0011] In a preferred embodiment, a locking mechanism for installing and fixing the circular saw blade is provided between the core column and the ring disk. The locking mechanism includes a U-shaped frame fixed on the side of the ring disk away from the I-shaped ring column and two connecting seats located on the outer side of the ring disk. On the opposite sides of the two connecting seats, L-shaped strips 2 that can move through the U-shaped frame and insert plates that can move through the ring disk are fixedly provided. The insert plates correspond to the slots. A straight spring 1 is fixedly connected between the two L-shaped strips 2. A lifting plate is provided on the inner side of the U-shaped frame. Two inclined tops corresponding to the L-shaped strips 2 are fixedly provided on the top of the lifting plate.

[0012] In a preferred embodiment, the reciprocating lifting assembly includes a vertical dovetail groove and a horizontal dovetail groove formed on the outside of the side frame. A dovetail block is slidably connected inside the vertical dovetail groove. A lifting frame that fits against the side frame is fixedly connected to the side of the dovetail block extending outside the vertical dovetail groove. A sliding plate is slidably connected inside the lifting frame. A straight plate is fixedly connected to one end of the sliding plate. A cylinder is fixedly provided on the side end of the straight plate facing the side frame. A saw blade tooth groove grinding part is fixedly installed on the top of the lifting frame.

[0013] A second dovetail block is slidably connected inside the horizontal dovetail groove. The second dovetail block extends to one side outside the horizontal dovetail groove and is fixedly connected to a limiting ring that fits against the side frame. The cylinder is movably inserted into the limiting ring.

[0014] In a preferred embodiment, the reciprocating lifting assembly further includes a side plate fixed to the top of the frame and a gear ring fixed to one side of the sliding plate. The inner side of the gear ring is provided with two concentrically arranged limiting strips fixed to the surface of the sliding plate. A rotating shaft is rotatably mounted on the top of the side plate. A gear that meshes with the gear ring is fixedly sleeved on the outer side of one end of the rotating shaft that extends into the inside of the gear ring. The rotating shaft is driven to rotate by a motor fixedly mounted on the outer side of the side plate. One end of the rotating shaft that extends into the inside of the gear ring is movably inserted into the limiting groove formed by the two limiting strips.

[0015] In a preferred embodiment, the reciprocating feed assembly includes a through slot 1 opened on the outside of the side frame and connected to the dovetail groove, and a gear ring 2 fixedly sleeved on the outside of the I-shaped ring column. Two L-shaped strips 1 are fixedly provided on the outside of the side frame, and a movable plate is slidably installed between the two L-shaped strips 1. One end of the dovetail block 2 located inside the dovetail groove is fixedly connected to a square column that movably passes through the movable plate. The square column passes through the inside of the through slot 1. The top of the L-shaped strip 1 located at the upper end is provided with the through slot 2. The top of the movable plate is fixedly provided with a gear plate that movably passes through the inside of the through slot 2.

[0016] In a preferred embodiment, the reciprocating feed assembly further includes adjustment slot blocks fixed at both ends of the top of the L-shaped bar located at the upper end and L-shaped rods fixed on both sides of the toothed plate. Magnetic strips are fixedly embedded on both sides of the inner cavity of the second through slot and both sides of the toothed plate. The slots on the two adjustment slot blocks are Y-shaped structures, and the slots on the two adjustment slot blocks are centrally symmetrical about the vertical geometric center line of the second through slot.

[0017] In a preferred embodiment, the blade sharpening mechanism includes an L-shaped frame fixed to the top of the frame. A second sliding groove is provided on the top inner side of the L-shaped frame. Two second sliding blocks are slidably connected inside the second sliding groove. A second screw is rotatably installed inside the second sliding groove to drive the two second sliding blocks to move in opposite directions or away from each other. The second screw is driven to rotate by a motor fixedly installed at one end of the L-shaped frame.

[0018] Two slide blocks are fixedly connected to a grinding frame that fits against the inner side of the L-shaped frame at one end extending to the outside of the slide groove. Each of the two grinding frames is fixedly provided with an inclined support that contacts the top surface of the inner side of the L-shaped frame on the opposite side. Each of the two grinding frames is fixedly provided with a gearbox and two grinding rollers that are rotatably installed inside. The two grinding rollers inside the same grinding frame are driven to rotate by a motor that is fixedly installed inside the corresponding grinding frame.

[0019] Protective components are installed on the outer sides of the opposite ends of the two grinding frames. The protective components include a U-shaped plate sleeved on the outer side of the corresponding grinding frame and a base block fixed on the outer side of the corresponding grinding frame. A guide rod is fixedly provided on the side of the U-shaped plate facing the base block, which is movable and passes through the base block. A circular plate is fixedly provided at one end of the guide rod that passes through the base block. A straight spring is sleeved on the outer side of the guide rod to fix and connect the base block and the U-shaped plate. An inclined groove is opened on the inner side of the U-shaped plate. A discharge pipe connected to the inclined groove is also provided on the outer side of the U-shaped plate.

[0020] In a preferred embodiment, the end of the I-shaped ring column away from the ring disk is provided with an anti-deflection mechanism. The anti-deflection mechanism includes an L-shaped seat fixed to the top of the vertical frame and a guide rod 2 that moves through the L-shaped seat. A circular plate 2 and a V-shaped block are fixedly connected to both ends of the guide rod 2, respectively. A straight spring 3 that is fixedly connected to the circular plate 2 and the L-shaped seat is sleeved on the outside of the guide rod 2. A V-shaped groove is opened on the outside of the I-shaped ring column, which is directly opposite to the V-shaped block. There are multiple V-shaped grooves, which are evenly distributed in a ring.

[0021] The beneficial effects of this invention are:

[0022] 1. This invention utilizes a blade supply mechanism to drive two sets of circular saw blades mounted thereon to alternately enter the polishing station. While the blade grinding mechanism grinds both sides of the circular saw blade, the reciprocating feed component on the continuous switching mechanism intermittently changes the saw tooth grooves of the circular saw blade in the polishing station, and the reciprocating lifting component grinds the changed saw tooth grooves. This achieves simultaneous polishing of both sides of the circular saw blade and the saw tooth grooves of the circular saw blade, thereby improving the polishing efficiency of the circular saw blade.

[0023] 2. By setting an anti-deflection mechanism at the top of the vertical frame, the present invention can limit the rotation of the I-shaped ring column after the toothed plate drives the toothed ring to rotate and complete the repositioning of the saw tooth groove on the circular saw blade. This is achieved by using a V-shaped block that is tightly pressed against the inside of the corresponding V-shaped groove to prevent the circular saw blade from rotating during the synchronous grinding of both sides of the circular saw blade.

[0024] 3. This invention, by setting a split blade mounting assembly, allows for quick assembly and disassembly of the circular saw blade without the need for tools, making it convenient and fast to operate. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention from a first-view perspective;

[0027] Figure 2 This is a schematic diagram of the overall structure of the invention from a second perspective;

[0028] Figure 3 This is a schematic diagram of the cooperation between the vertical frame and the blade mounting assembly of the present invention;

[0029] Figure 4 This is a schematic diagram of the blade mounting assembly of the present invention;

[0030] Figure 5 This is a schematic diagram of the blade mounting assembly of the present invention.

[0031] Figure 6 This is a first-view structural diagram of the continuous switching mechanism of the present invention;

[0032] Figure 7 This is a schematic diagram of the second perspective structure of the continuous switching mechanism of the present invention;

[0033] Figure 8 This is a schematic diagram of the blade sharpening mechanism of the present invention;

[0034] Figure 9 This is a cross-sectional schematic diagram of the blade sharpening mechanism of the present invention;

[0035] Figure 10 This is a schematic diagram of the protective component structure of the present invention;

[0036] Figure 11 This is a schematic diagram of the circular saw blade structure of the present invention.

[0037] The attached diagram is labeled as follows: 1. Frame; 2. Blade supply mechanism; 21. Slide groove one; 22. Slide block one; 23. Vertical frame; 24. Blade mounting assembly; 241. I-beam ring column; 242. Ring disc; 243. Core column; 244. Column hole; 245. Slot; 246. Positioning slot; 247. Insert column; 248. Positioning strip; 3. Continuous switching mechanism; 31. Side frame; 32. Reciprocating lifting assembly; 321. Vertical dovetail groove; 322. Horizontal dovetail groove; 323. Lifting frame; 324. Sliding plate; 325. Straight plate; 326. Cylindrical; 327. Restriction ring; 328. Gear ring one; 329. Restriction strip; 3210. Side plate; 3211. Gear; 3212. Saw blade tooth groove grinding part; 33. Reciprocating feed assembly; 331. Through groove one; 3 32. L-shaped bar one; 333. Moving plate; 334. Square column; 335. Toothed plate; 336. L-shaped rod; 337. Adjusting slot block; 338. Through slot two; 339. Magnetic strip; 3310. Toothed ring two; 4. Blade grinding mechanism; 41. L-shaped frame; 42. Slide groove two; 43. Slide seat two; 44. Grinding frame; 45. Gearbox; 46. Diagonal support; 47. Protective assembly Components; 471, U-shaped plate; 472, base block; 473, circular plate one; 474, inclined groove; 475, discharge pipe; 5, anti-deflection mechanism; 51, L-shaped seat; 52, V-shaped block; 53, circular plate two; 54, V-shaped groove; 6, circular saw blade; 7, locking mechanism; 71, U-shaped frame; 72, L-shaped strip two; 73, lifting plate; 74, insert plate; 75, inclined top; 76, connecting seat. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] The polishing device of the present invention belongs to a part of the intelligent manufacturing equipment industry. It is a type of equipment used to process the surface of carbide blades. It is mainly used to simultaneously polish the double-sided surfaces and saw tooth grooves of carbide circular saw blades.

[0040] Example 1

[0041] Refer to the instruction manual appendix Figures 1-2 The present invention provides a carbide blade surface polishing device, including a frame 1 and a circular saw blade 6. A blade supply mechanism 2 for alternately supplying two sets of circular saw blades 6 is installed on the top of the frame 1. A continuous switching mechanism 3 for intermittently changing the saw tooth groove of the circular saw blade 6 at the polishing station and grinding the saw tooth groove is fixedly installed in the middle of the top of the frame 1. A blade grinding mechanism 4 for synchronously grinding both sides of the circular saw blade 6 is also installed on the top of the frame 1.

[0042] The continuous switching mechanism 3 includes a side frame 31 fixed to the top of the frame 1, and a reciprocating lifting assembly 32 and a reciprocating feeding assembly 33 are respectively installed on both sides of the side frame 31.

[0043] It should be noted that the present invention uses the blade supply mechanism 2 to drive the two sets of circular saw blades 6 installed thereon to alternately enter the polishing station. While the blade grinding mechanism 4 grinds both sides of the circular saw blades 6, the continuous switching mechanism 3 intermittently changes the saw tooth grooves of the circular saw blades 6 in the polishing station and grinds the saw tooth grooves.

[0044] Specifically, such as Figures 2-3 As shown, the blade supply mechanism 2 includes a slide groove 21 opened on the top of the frame 1. A slide block 22 is slidably installed inside the slide groove 21. A screw is also rotatably installed inside the slide groove 21 to drive the slide block 22 to move along the slide groove 21. The screw is driven to rotate by a motor fixedly installed on the outside of the frame 1. The slide groove 21 and the slide block 22 can be set to a matching dovetail structure to ensure that the slide block 22 slides stably along the slide groove 21. At the same time, it reduces the internal stress on the screw during the polishing process. Vertical brackets 23 are fixedly provided at both ends of the top of the slide block 22. Blade mounting assemblies 24 are installed at the top of the two vertical brackets 23. The circular saw blade 6 can be detachably installed on the blade mounting assembly 24.

[0045] It should be noted that during the continuous supply of circular saw blades 6, the circular saw blades 6 to be processed are mounted on the two blade mounting assemblies 24 on the top of the slide block 22. Then, the screw is driven to rotate by the motor mounted on the outside of the frame 1, thereby driving the slide block 22 to move along the slide groove 21, allowing one of the circular saw blades 6 to be ground to enter the polishing station. By cooperating with the blade grinding assembly 4 and the continuous switching mechanism 3, the two sides of the circular saw blade 6 and the saw tooth grooves on the circular saw blade are polished simultaneously. After the circular saw blade 6 in the current polishing station is polished, the slide block 22 is moved by controlling the rotation of the screw, allowing another circular saw blade 6 to be ground to enter the polishing station for polishing. The circular saw blade 6 that has been polished previously will move away from the polishing station. While the other circular saw blade 6 is being polished, the polished circular saw blade 6 is removed and replaced with a new circular saw blade 6 to be ground. In this way, the continuous supply of circular saw blades 6 to be ground can be achieved.

[0046] Specifically, such as Figure 2 and Figures 8-10 As shown, the blade sharpening mechanism 4 includes an L-shaped frame 41 fixed to the top of the frame 1. The top inner side of the L-shaped frame 41 has a second sliding groove 42. Two slide blocks 43 are slidably connected inside the second sliding groove 42. A screw 2 is rotatably installed inside the second sliding groove 42 to drive the two slide blocks 43 to move in opposite directions or in opposite directions. That is, the threads on the outer side of the screw 2 corresponding to the moving areas of the two slide blocks 43 are set in opposite directions. The slide blocks 43 and the second sliding groove 42 also adopt a matching dovetail structure design. The effect is the same as the effect produced by the cooperation of the first sliding groove 21 and the first slide block 22. The screw 2 is driven to rotate by a motor fixedly installed at one end of the L-shaped frame 41.

[0047] Two slide blocks 43 extend to one end of the slide groove 42 and are fixedly connected to a grinding frame 44 that fits against the inner side of the L-shaped frame 41. Each of the two grinding frames 44 has a diagonal support 46 fixed on its opposite side, contacting the top inner surface of the L-shaped frame 41. Each of the two grinding frames 44 has a gearbox 45 and two rotating grinding rollers fixedly installed inside. The two grinding rollers inside the same grinding frame 44 are driven to rotate by a motor fixedly installed inside the corresponding grinding frame 44. Each grinding frame 44 consists of a power zone and a grinding zone. The drive gear set inside the gearbox 45 is distributed as follows... Figure 9As shown, the output shaft of the motor is connected to one of the centrally located drive gears, and the two grinding rollers are respectively connected to the drive gears located at both ends. Under the drive of the motor, the two grinding rollers rotate in opposite directions. The combination of forward and reverse grinding improves the polishing effect on the surface of the circular saw blade 6. In addition, a coolant outlet pipe connected to the external coolant supply pipe can be added to the grinding area inside the grinding frame 44. The outlet end of the coolant outlet pipe can be set to two sets of two, with the two outlets of one set facing the grinding area of ​​the two grinding rollers respectively, and the two outlets of the other set facing the surface of the grinding rollers after they have passed the grinding area (the coolant outlet pipes are not specifically shown in the attached figure). This achieves cooling of the grinding area and cleaning of residual waste on the surface of the grinding rollers after grinding.

[0048] Protective components 47 are installed on the outer sides of the opposite ends of the two grinding frames 44. The protective components 47 include a U-shaped plate 471 sleeved on the outer side of the corresponding grinding frame 44 and a base block 472 fixed on the outer side of the corresponding grinding frame 44. A guide rod 1 that moves through the base block 472 is fixedly provided on the side of the U-shaped plate 471 facing the base block 472. A circular plate 473 is fixedly provided at one end of the guide rod 1 that passes through the base block 472. A straight spring 2 that fixes the base block 472 and the U-shaped plate 471 is sleeved on the outer side of the guide rod 1. When the straight spring 2 is in its natural state, the grinding point of the grinding roller facing the circular saw blade 6 is completely hidden inside the U-shaped plate 471. The U-shaped plate 471 has an inclined groove 474 on its inner side and a discharge pipe 475 connected to the inclined groove 474 on its outer side. The inclined groove 474 can guide the coolant falling into the area to the discharge pipe 475 and discharge it through the discharge pipe 475, preventing the accumulated coolant from leaking out from the gap between the U-shaped plate 471 and the polishing frame 44. The outlet end of the discharge pipe 475 can be connected to an external recycling and reprocessing device (shown in detail in the attached figure). This recycling and reprocessing device can be used to filter polishing residue in the return coolant, realizing the recycling and reuse of the coolant.

[0049] It should be noted that during the synchronous polishing of both sides of the circular saw blade 6 entering the polishing station, after the circular saw blade 6 to be processed is pushed to the polishing station by the blade supply mechanism 2, the motor installed on the outside of the L-shaped frame 41 drives the screw two to rotate, thereby driving the two slide blocks 43 to move in opposite directions, causing the two grinding frames 44 to move in opposite directions synchronously. During this process, the motor installed on the inside of the grinding frame 44 transmits output power through the corresponding gearbox 45, causing the corresponding grinding frame 44 to move in opposite directions. The two grinding rollers inside rotate in opposite directions. As the two grinding frames 44 approach each other, the two U-shaped plates 471 will first contact the corresponding side of the circular saw blade 6. Then, as the two grinding frames 44 continue to approach each other, the U-shaped plates 471 will move towards the base block 472 under the action of the counter-thrust force on the corresponding side of the circular saw blade 6, and compress the straight spring 2 along the axial direction of the guide rod 1 until the rotating grinding rollers contact the corresponding side surface of the circular saw blade 6, so as to achieve synchronous grinding of both sides of the circular saw blade 6.

[0050] During the simultaneous grinding of both sides of the circular saw blade 6, only a portion of the inclined groove 474 on the inner side of the U-shaped plate 471 is blocked by the grinding frame 44. The coolant sprayed from the coolant outlet pipe during the polishing process cleans the polishing area and the surface of the grinding roller. The coolant mixed with polishing residue falls directly back into the inclined groove 474 and is then discharged directly through the discharge pipe 475 for collection and reuse. In addition, sealing pads are provided on the inner side of the U-shaped plate 471 where it initially contacts the corresponding grinding frame 44, as well as on the side of the U-shaped plate 471 facing the circular saw blade 6, to prevent coolant leakage during the grinding and polishing process.

[0051] Specifically, such as Figure 1 and Figure 6 As shown, the reciprocating lifting assembly 32 includes a vertical dovetail groove 321 and a horizontal dovetail groove 322 opened on the outside of the side frame 31. A dovetail block is slidably connected inside the vertical dovetail groove 321. A lifting frame 323 that fits against the side frame 31 is fixedly connected to the side of the dovetail block extending outside the vertical dovetail groove 321. A sliding plate 324 is slidably connected inside the lifting frame 323. A straight plate 325 is fixedly connected to one end of the sliding plate 324. A cylinder 326 is fixedly provided on the side end of the straight plate 325 facing the side frame 31. A saw blade tooth groove grinding component 3212 is fixedly installed on the top of the lifting frame 323. The saw blade tooth groove grinding component 3212 consists of a bracket fixed on the top of the lifting frame 323 and a grinding column rotatably installed on the top of the bracket and driven to rotate by a motor installed on the outside of the bracket. The length of the grinding column is designed to be greater than the thickness of the circular saw blade 6 to ensure that the saw tooth groove is polished in all directions.

[0052] A second dovetail block is slidably connected inside the horizontal dovetail groove 322. The second dovetail block extends to one side outside the horizontal dovetail groove 322 and is fixedly connected to a limiting ring 327 that fits against the side frame 31. A cylinder 326 is movably inserted into the limiting ring 327. The cooperation between the limiting ring 327 and the lifting frame 323 can be used to prevent the sliding plate 324 from disengaging from the lifting frame 323.

[0053] The reciprocating lifting assembly 32 also includes a side plate 3210 fixed to the top of the frame 1 and a gear ring 328 fixed to one side of the sliding plate 324. The inner side of the gear ring 328 is provided with two concentrically arranged limiting strips 329 fixed to the surface of the sliding plate 324. A rotating shaft is rotatably mounted on the top of the side plate 3210. A gear 3211 that meshes with the gear ring 328 is fixedly sleeved on the outer side of one end of the rotating shaft that extends into the inside of the gear ring 328. The rotating shaft is driven to rotate by a motor fixedly mounted on the outer side of the side plate 3210. One end of the rotating shaft that extends into the inside of the gear ring 328 is movably inserted into the limiting channel formed by the two limiting strips 329.

[0054] It should be noted that during the process of pushing the saw blade tooth groove grinding component 3212 upward to grind the saw tooth groove of the current grinding station after switching via the reciprocating feed component 33, when the continuous switching mechanism is in the state of... Figure 6 In the indicated state, as the motor mounted on the side plate 3210 controls the rotation of gear 3211, the rotating gear 3211, through its meshing with gear ring 328, drives the sliding plate 324 to move to the left under the constraint of the lifting frame 323. While gear 3211 moves in the horizontal toothed area at the upper end of gear ring 328, the moving sliding plate 324 pulls the limiting ring 327 to move synchronously to the left. Dovetail block 2 also moves synchronously to the left along with the limiting ring 327. During its leftward movement along the horizontal dovetail groove 322, dovetail block 2... The reciprocating feed assembly 33 drives the circular saw blade 6 to perform a tooth groove change and keeps the circular saw blade 6 stationary. At this time, the grinding part of the saw blade tooth groove grinding part 3212 is exactly aligned with the changed saw tooth groove. When the gear 3211 rotates in the arc section at the right end of the gear ring 328, the rotating gear 3211 will drive the lifting frame 323 to move upward along the vertical dovetail groove 321, so as to drive the saw blade tooth groove grinding part 3212 to move upward synchronously, and use the grinding part on the saw blade tooth groove grinding part 3212 to complete the all-round polishing of the saw tooth groove at the current position.

[0055] While gear 3211 moves in the horizontal slotted area at the lower end of gear ring 328, saw blade slot grinding component 3212 remains in the saw tooth slot at the current work position, while sliding plate 324 will move to the right until gear 3211 rotates in the arc section at the left end of gear ring 328. The rotating gear 3211 will drive lifting frame 323 to move downward along vertical dovetail groove 321. This cycle repeats, which can realize continuous saw tooth slot repositioning of circular saw blade 6 and grinding and polishing of the repositioned saw tooth slot.

[0056] Specifically, such as Figure 2 and Figure 7 As shown, the reciprocating feed assembly 33 includes a through slot 331 that is opened on the outside of the side frame 31 and communicates with the horizontal dovetail groove 322, and a gear ring 3310 that is fixedly sleeved on the outside of the I-shaped ring column 241. Two L-shaped bars 332 are fixedly provided on the outside of the side frame 31. The through slot 331 is located in the middle between the two L-shaped bars 332. A movable plate 333 is slidably installed between the two L-shaped bars 332. One end of the dovetail block 332 located inside the horizontal dovetail groove 322 is fixedly connected to a square column 334 that movably passes through the movable plate 333. The square column 334 passes through the through slot 331. The top of the L-shaped bar 332 located at the upper end is provided with a through slot 338. A gear plate 335 that movably passes through the through slot 338 is fixedly provided on the top of the movable plate 333. The gear ring 3310 is set on the movement trajectory of the gear plate 335 moving towards the polishing station and is used to drive the gear ring 3310 to rotate intermittently.

[0057] The reciprocating feed assembly 33 also includes adjustment slots 337 fixed at both ends of the top of the L-shaped bar 332 located at the upper end and L-shaped rods 336 fixed on both sides of the toothed plate 335. Magnetic strips 339 are fixedly embedded on both sides of the inner cavity of the slot 338 and both sides of the toothed plate 335. The opposite ends of the inner cavities of the slot 338 are provided with non-magnetic strip areas, so that the toothed plate 335 can release its adsorption from the inner cavity of the slot 338 when it moves to the corresponding non-magnetic strip area. This makes it easier to adjust the position of the moving plate 333 under the guidance of the corresponding adjustment slots 337. The slots on the two adjustment slots 337 are Y-shaped structures, and the slots on the two adjustment slots 337 are centrally symmetrical about the vertical geometric center line of the slot 338.

[0058] It should be noted that when the second dovetail block begins to move synchronously to the left under the drive of the sliding plate 324, the moving plate 333 is exactly in the position shown in the figure. Figure 7The state shown is such that the magnetic strip 339 embedded on the outer side of the toothed plate 335 is attracted to the magnetic strip 339 embedded on the side of the inner cavity of the slot 338 away from the side frame 31. In this state, the side of the inner cavity of the slot 338 near the side frame 31 is a non-magnetic strip area, and the toothed plate 335 and the toothed ring 3310 are vertically coplanar. Then, as the sliding plate 324 moves to the left, it will drive the toothed plate 335 to move to the left while maintaining the attraction between the magnetic strip 339 embedded on the side of the inner cavity of the slot 338 away from the side frame 31 (see reference). Figure 6 The toothed plate 335 moves in the direction of movement, and when it passes through the area where the toothed ring 3310 is located, it will drive the toothed ring 3310 to rotate at a certain angle. After leaving the area where the toothed ring 3310 is located, it continues to move to the left.

[0059] During this process, when the right end of toothed plate 335 (see...) Figure 7 As shown, after the L-shaped rod 336 enters the slot on the corresponding end adjusting block 337 (where the magnetic strip 339 on the surface of the toothed plate 35 is disengaged from the magnetic strip 339 embedded on the side of the slot 338 away from the side frame 31), guided by the inclined surface on its inner side, the moving plate 333 moves along the square column 334 toward the side frame 31, causing the magnetic strip 339 embedded on the other side of the toothed plate 335 to attract the magnetic strip 339 embedded on the side of the slot 338 near the side frame 31. In this state, the toothed plate 335 is completely offset from the toothed ring 3310, and the moving plate 333 moves to the right with the sliding plate 324 (see reference). Figure 6 During the movement process, when the toothed plate 335 retracts and passes through the area where the toothed ring 3310 is located, it will not drive the toothed ring 3310 to rotate. In this way, the saw tooth grooves on the circular saw blade 6 can be continuously switched in a step-by-step manner.

[0060] Furthermore, during the step-by-step switching of the saw tooth grooves of the circular saw blade 6 using the reciprocating feed component 33, the blade grinding mechanism 4 always maintains a state of synchronous grinding and polishing of both sides of the circular saw blade 6.

[0061] Specifically, such as Figures 3-4 As shown, the end of the I-shaped ring column 241 away from the ring disk 242 is provided with an anti-deflection mechanism 5. The anti-deflection mechanism 5 includes an L-shaped seat 51 fixed to the top of the vertical frame 23 and a guide rod 2 that moves through the L-shaped seat 51. The two ends of the guide rod 2 are respectively fixedly connected to a circular plate 2 53 and a V-shaped block 52. A straight spring 3 is sleeved on the outside of the guide rod 2 and fixedly connected to the circular plate 2 53 and the L-shaped seat 51. A V-shaped groove 54 is opened on the outside of the I-shaped ring column 241, which is directly opposite to the V-shaped block 52. There are multiple V-shaped grooves 54, which are evenly distributed in a ring. When the V-shaped block 52 is inserted into the corresponding V-shaped groove 54, the straight spring 3 is still in a stretched state to ensure that the V-shaped block is tightly inserted into the corresponding V-shaped groove 54.

[0062] It should be noted that during the intermittent repositioning of the saw tooth groove of the circular saw blade 6 in the polishing position using the reciprocating feed assembly 33, when the toothed plate 335 contacts the toothed ring 3310 fixedly sleeved on the outside of the I-shaped ring column 241, as the toothed plate 335 advances, it will cause the toothed ring 3310 to rotate, thereby driving the I-shaped ring column 241 to rotate synchronously. During the rotation of the I-shaped ring column 241, the I-shaped ring column 241 will squeeze the V-shaped block 52 inserted into the V-shaped groove 54, causing the V-shaped block 52 to gradually disengage from the current position of the V-shaped groove 54, and push the circular plate 53 upward to continue stretching the straight spring 3. As the V-block 52 completely disengages from the V-groove 54 at its current position and gradually moves to fully insert into the next (i.e., adjacent) V-groove 54, the toothed plate 335 also completely disengages from the toothed ring 3310 at the same time that the V-block 52 is fully inserted into the adjacent V-groove 54. In this way, the V-block 52 inserted into the V-groove 54 can be used to position the circular saw blade 6 after it has been rotated, preventing the circular saw blade 6 from rotating and shifting during the grinding and polishing of both sides, which would result in some areas not achieving the desired polishing effect.

[0063] Example 2

[0064] Refer to the instruction manual appendix Figures 3-5 The present invention also provides a surface polishing device for cemented carbide cutting tools. The cutting tool mounting assembly 24 includes an I-shaped ring column 241 that is rotatably mounted on the top of the vertical frame 23. One end of the I-shaped ring column 241 is provided with a ring disk 242. A core column 243 is fixedly provided on the side of the I-shaped ring column 241 facing the ring disk 242. The end face of the core column 243 is provided with column holes 244 that are evenly distributed in a ring around the core column 243. A slot 245 and a positioning slot 246 are provided on the outer side of the core column 243. An insertion post 247 that matches the column hole 244 is fixedly provided on one side of the ring disk 242. A positioning strip 248 that matches the positioning slot 246 is fixedly provided on the inner side of the ring disk 242. Through the cooperation of the positioning strip 248 and the positioning slot 246, it can be ensured that the insertion post 247 on the ring disk 242 corresponds one-to-one with the column hole 244 on the I-shaped ring column 241.

[0065] A locking mechanism 7 for installing and fixing the circular saw blade 6 is provided between the core column 243 and the ring disk 242. The locking mechanism 7 includes a U-shaped frame 71 fixed on the side of the ring disk 242 away from the I-shaped ring column 241 and two connecting seats 76 located on the outside of the ring disk 242. Each of the two connecting seats 76 has an L-shaped strip 72 that movably passes through the U-shaped frame 71 and an insert plate 74 that movably passes through the ring disk 242. The insert plate 74 corresponds to the slot 245. A straight spring is fixedly connected between the two L-shaped strips 72. A lifting plate 73 is provided inside the U-shaped frame 71. Grooves can be opened on both sides of the inner cavity of the U-shaped frame 71. A guide rod is fixedly installed inside the groove. The two ends of the lifting plate 73 are respectively movable. The guide rod is inserted into the corresponding groove, and the guide rod 3 moves through the lifting plate 73. A straight spring 4 is fixedly connected to the lifting plate 73 and the inner cavity of the groove near the corresponding L-shaped strip 72 on the outside of the guide rod 3. When the lifting plate 73 is at its farthest from the straight spring 1, the straight spring 4 is still in a compressed state. Two inclined tops 75 corresponding to L-shaped strip 72 are fixedly provided on the top of the lifting plate 73. The ends of the two L-shaped strips 72 near the corresponding inclined tops 75 are set as inclined surfaces. When the straight spring 1 is in its natural state, there is an intersection between the inclined ends of the two L-shaped strips 72 and the corresponding inclined tops 75. That is, the top of the inclined top 75 is located in the area covered by the inclined surface on the corresponding L-shaped strip 72 (see Figure 5 (As shown).

[0066] It should be noted that during the process of installing the circular saw blade 6 to be processed onto the blade mounting assembly 24, the circular saw blade 6 is inserted into the outer side of the insert post 247 on the ring disc 242, and then the positioning strip 248 on the inner side of the ring disc 242 is aligned with the positioning groove 246 on the core post 243. The ring disc 242 is then inserted into the core post 243. During this process, the insert post 247 can be accurately inserted into the corresponding post hole 244, and the insert plate 74 in this state is exactly aligned with the outer side of the core post 243. The slot 245 is aligned, and before the ring 242, after being aligned (i.e., the positioning strip 248 on the inner side of the aforementioned adjusting ring 242 is aligned with the positioning groove 246 on the core column 243), is inserted into the core column 243, the lifting plate 73 needs to be held and moved away from the ring 242, so that while it continues to compress the straight spring four, the inclined top 75, which moves synchronously with the lifting plate 73, will gradually squeeze the corresponding L-shaped strip two 72, causing the two L-shaped strip two 72 to move in opposite directions and stretch the straight spring one;

[0067] The two L-shaped bars 72 moving in opposite directions will push the corresponding connecting seat 76 to move away from the U-shaped frame 71. At the same time, the corresponding insert plate 74 will gradually retract into the corresponding through slot on the ring plate 242. When the lifting plate 73 moves to the farthest point from the ring plate 242, the insert plate 74 will be completely retracted into the corresponding through slot on the ring plate 242. When the ring plate 242 with the circular saw blade 6 to be processed is fully inserted into the core column 243, the insert plate 74 will be directly aligned with the corresponding slot 245 on the outside of the core column 243. Then, the force applied to the lifting plate 73 will be removed, allowing the lifting plate 73 to reset under the restoring force of the straight spring 1 and straight spring 4. At this time, the insert plate 74 will be fully inserted into the corresponding slot 245. In this way, the assembly and disassembly of the circular saw blade 6 can be completed quickly without the aid of tools, making the operation convenient and fast.

[0068] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A surface polishing device for carbide blades, comprising a frame (1) and a circular saw blade (6), characterized in that: The top of the frame (1) is equipped with a blade supply mechanism (2) for alternately supplying two sets of circular saw blades (6). The top center of the frame (1) is fixedly equipped with a continuous switching mechanism (3) for intermittently changing the saw tooth groove of the circular saw blade (6) in the polishing station and grinding the saw tooth groove. The top of the frame (1) is also equipped with a blade grinding mechanism (4) for synchronously grinding both sides of the circular saw blade (6). The continuous switching mechanism (3) includes a side frame (31) fixed to the top of the frame (1), and a reciprocating lifting assembly (32) and a reciprocating feeding assembly (33) are respectively installed on both sides of the side frame (31). The blade supply mechanism (2) includes a blade mounting assembly (24), and the circular saw blade (6) is detachably mounted on the blade mounting assembly (24). The blade supply mechanism (2) also includes a slide groove (21) opened on the top of the frame (1). A slide block (22) is slidably mounted inside the slide groove (21). Vertical frames (23) are fixedly mounted at both ends of the top of the slide block (22). The blade mounting assembly (24) includes an I-shaped ring column (241) that is rotatably mounted on the top of the vertical frame (23). The reciprocating lifting assembly (32) includes a vertical dovetail groove (321) and a horizontal dovetail groove (322) opened on the outside of the side frame (31). A dovetail block is slidably connected inside the vertical dovetail groove (321). A lifting frame (323) that fits against the side frame (31) is fixedly connected to one side of the dovetail block that extends to the outside of the vertical dovetail groove (321). A sliding plate (324) is slidably connected inside the lifting frame (323). A straight plate (325) is fixedly connected to one end of the sliding plate (324). A cylinder (326) is fixedly provided on the side end of the straight plate (325) facing the side frame (31). A saw blade tooth groove grinding part (3212) is fixedly installed on the top of the lifting frame (323). The dovetail groove (322) is slidably connected to a dovetail block two. The dovetail block two extends to the outside of the dovetail groove (322) and is fixedly connected to a limiting ring (327) that fits against the side frame (31). The cylinder (326) is movably inserted into the limiting ring (327). The reciprocating feed assembly (33) includes a through slot 1 (331) opened on the outside of the side frame (31) and connected to the horizontal dovetail groove (322), and a gear ring 2 (3310) fixedly sleeved on the outside of the I-shaped ring column (241). Two L-shaped bars 1 (332) are fixedly provided on the outside of the side frame (31), and a movable plate (333) is slidably installed between the two L-shaped bars 1 (332). One end of the dovetail block 2 located inside the horizontal dovetail groove (322) is fixedly connected to a square column (334) that movably passes through the movable plate (333). The square column (334) passes through the inside of the through slot 1 (331). The top of the L-shaped bar 1 (332) located at the upper end is provided with a through slot 2 (338). The top of the movable plate (333) is fixedly provided with a gear plate (335) that movably passes through the inside of the through slot 2 (338).

2. The cemented carbide cutting tool surface polishing device according to claim 1, characterized in that: Inside the slide groove (21), a screw is rotatably installed to drive the slide block (22) to move along the slide groove (21). The screw is driven to rotate by a motor fixedly installed on the outside of the frame (1). Blade mounting assemblies (24) are installed at the top of the two vertical frames (23).

3. The cemented carbide cutting tool surface polishing device according to claim 1, characterized in that: One end of the I-shaped ring column (241) is provided with a ring plate (242). A core column (243) is fixedly provided on the side of the I-shaped ring column (241) facing the ring plate (242). A column hole (244) is opened on the end face of the core column (243) in a ring evenly distributed manner around the core column (243). A slot (245) and a positioning groove (246) are opened on the outer side of the core column (243). An insert (247) adapted to the column hole (244) is fixedly provided on one side of the ring plate (242). A positioning strip (248) adapted to the positioning groove (246) is fixedly provided on the inner side of the ring plate (242).

4. The cemented carbide cutting tool surface polishing device according to claim 3, characterized in that: A locking mechanism (7) for installing and fixing the circular saw blade (6) is provided between the core column (243) and the ring disk (242). The locking mechanism (7) includes a U-shaped frame (71) fixed on the side of the ring disk (242) away from the I-shaped ring column (241) and two connecting seats (76) located on the outside of the ring disk (242). On the opposite sides of the two connecting seats (76), L-shaped strips (72) that can move through the U-shaped frame (71) and insert plates (74) that can move through the ring disk (242) are fixedly provided. The insert plates (74) correspond to the slots (245). A straight spring is fixedly connected between the two L-shaped strips (72). A lifting plate (73) is provided on the inner side of the U-shaped frame (71). Two inclined tops (75) corresponding to the L-shaped strips (72) are fixedly provided on the top of the lifting plate (73).

5. The cemented carbide cutting tool surface polishing device according to claim 1, characterized in that: The reciprocating lifting assembly (32) also includes a side plate (3210) fixed to the top of the frame (1) and a gear ring (328) fixed to one side of the sliding plate (324). The inner side of the gear ring (328) is provided with two concentrically arranged limiting strips (329) fixed to the surface of the sliding plate (324). A rotating shaft is rotatably installed at the top of the side plate (3210). A gear (3211) that meshes with the gear ring (328) is fixedly sleeved on the outer side of one end of the rotating shaft that extends into the inside of the gear ring (328). The rotating shaft is driven to rotate by a motor fixedly installed on the outer side of the side plate (3210). One end of the rotating shaft that extends into the inside of the gear ring (328) is movably inserted into the limiting channel formed by the two limiting strips (329).

6. The cemented carbide cutting tool surface polishing device according to claim 1, characterized in that: The reciprocating feed assembly (33) also includes adjustment slots (337) fixed at both ends of the top of the L-shaped bar (332) located at the upper end and L-shaped rods (336) fixed on both sides of the toothed plate (335). Magnetic strips (339) are fixedly embedded on both sides of the inner cavity of the through slot (338) and both sides of the toothed plate (335). The slots on the two adjustment slots (337) are Y-shaped structures, and the slots on the two adjustment slots (337) are centrally symmetrical about the vertical geometric center line of the through slot (338).

7. The cemented carbide cutting tool surface polishing device according to claim 1, characterized in that: The blade sharpening mechanism (4) includes an L-shaped frame (41) fixed to the top of the frame (1). A second sliding groove (42) is provided on the top inner side of the L-shaped frame (41). Two sliding blocks (43) are slidably connected inside the second sliding groove (42). A screw rod (2) is rotatably installed inside the second sliding groove (42) to drive the two sliding blocks (43) to move towards or away from each other. The screw rod (2) is driven to rotate by a motor fixedly installed at one end of the L-shaped frame (41). Two slide blocks (43) are fixedly connected to a grinding frame (44) that fits against the inside of the L-shaped frame (41) at one end extending to the outside of the slide groove (42). Each of the two grinding frames (44) is fixedly provided with an inclined support (46) that contacts the top surface of the inside of the L-shaped frame (41) on the opposite side. Each of the two grinding frames (44) is fixedly provided with a gearbox (45) and two grinding rollers that are rotatably installed inside. The two grinding rollers inside the same grinding frame (44) are driven to rotate by a motor fixedly installed inside the corresponding grinding frame (44). A protective assembly (47) is installed on the outer side of one of the opposite ends of the two grinding frames (44). The protective assembly (47) includes a U-shaped plate (471) sleeved on the outer side of the corresponding grinding frame (44) and a base block (472) fixed on the outer side of the corresponding grinding frame (44). A guide rod 1 that moves through the base block (472) is fixed on the side of the U-shaped plate (471) facing the base block (472). A circular plate 1 (473) is fixed on one end of the guide rod 1 that passes through the base block (472). A straight spring 2 that fixes the base block (472) and the U-shaped plate (471) is sleeved on the outer side of the guide rod 1. A groove (474) is opened on the inner side of the U-shaped plate (471). A discharge pipe (475) that communicates with the groove (474) is also provided on the outer side of the U-shaped plate (471).

8. The cemented carbide cutting tool surface polishing device according to claim 3, characterized in that: The end of the I-shaped ring column (241) away from the ring plate (242) is provided with an anti-deflection mechanism (5). The anti-deflection mechanism (5) includes an L-shaped seat (51) fixed on the top of the vertical frame (23) and a guide rod 2 that moves through the L-shaped seat (51). The two ends of the guide rod 2 are respectively fixedly connected to a circular plate 2 (53) and a V-shaped block (52). A straight spring 3 is sleeved on the outside of the guide rod 2 and fixedly connected to the circular plate 2 (53) and the L-shaped seat (51). The outside of the I-shaped ring column (241) is provided with a V-shaped groove (54) that is directly opposite to the V-shaped block (52). There are multiple V-shaped grooves (54) and they are evenly distributed in a ring.

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