A hard alloy blade polishing tool

Abstract

This utility model discloses a polishing fixture for carbide cutting tools, relating to the field of carbide cutting tool processing technology. It includes a base plate, on which a fixed frame and a polishing machine are fixedly mounted. A sliding seat is slidably connected to the fixed frame, and a moving mechanism is provided inside the fixed frame. A clamping mechanism is fixedly mounted on the sliding seat. Activating the rotating motor in the clamping mechanism causes the motor to drive a worm gear via a worm shaft. The worm gear drives a gear column via a rotating shaft, which in turn drives two sets of racks and two sets of racks, thereby causing the clamping components to move towards each other. The carbide cutting tool is clamped by four sets of clamping components arranged in a ring, avoiding uneven clamping or unstable clamping direction, ensuring the stability of the cutting tool during subsequent polishing. Simultaneously, the clamping components include an arc-shaped clamping plate and a right-angle clamping plate, corresponding to round and rectangular cutting tools respectively, which can be adjusted according to the different shapes of the cutting tools to ensure optimal clamping of the tool shape.

Description

Technical Field

[0001] This utility model relates to the field of cemented carbide cutting tool processing technology, specifically to a cemented carbide cutting tool polishing fixture. Background Technology

[0002] Carbide is an alloy material made from hard compounds of refractory metals and binder metals through powder metallurgy. Carbide possesses a range of excellent properties, including high hardness, wear resistance, good strength and toughness, heat resistance, and corrosion resistance. Carbide inserts are cutting tools made from carbide, offering advantages such as high hardness, strong wear resistance, and high temperature resistance, making them suitable for machining complex shapes and high-speed cutting. However, carbide inserts will still experience edge wear after prolonged use. Due to their relatively high price, worn carbide inserts are often repaired by grinding and polishing to extend their service life.

[0003] The shape design of carbide inserts is closely related to their processing applications. Common standard shapes include rectangles and circles. In existing blade sharpening machines, clamping plates are usually used to clamp the two sides of the insert, which can only clamp inserts of a single specification. Furthermore, the clamping direction on both sides is unstable. Based on this, this solution provides a carbide insert polishing fixture to solve the above-mentioned problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, a polishing fixture for cemented carbide cutting tools is provided. This technical solution solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A polishing fixture for carbide blades includes a base plate, on which a fixed frame and a polishing machine are fixedly mounted. A sliding seat is slidably connected to the fixed frame, and a moving mechanism is provided inside the fixed frame. A clamping mechanism is fixedly mounted on the sliding seat. The clamping mechanism includes a mounting plate fixedly mounted on the sliding seat, a rotating shaft rotatably mounted inside the mounting plate, a gear column fixedly mounted on the rotating shaft, and a driving component fixedly connected to the right end of the rotating shaft. Two sets of racks and two sets of racks are meshed on the gear column. Connecting plates and clamping components are fixedly connected to the two sets of racks and racks respectively.

[0006] Preferably, the driving component includes a worm gear fixedly connected to the rotating shaft, a mounting bracket and a rotating motor fixedly mounted on the mounting plate are provided on the upper side of the worm gear, a worm is rotatably mounted on the inner side of the mounting bracket, the lower end of the worm meshes with the worm gear, and the output shaft of the rotating motor is fixedly connected to one end of the worm.

[0007] Preferably, the clamping component includes several sets of U-shaped frames that are fixedly installed on connecting plate one and connecting plate two respectively. A rotating column is rotatably installed on the inner wall of the U-shaped frame. An arc-shaped clamping plate and a right-angle clamping plate are fixedly connected to both ends of the rotating column respectively. A locking rod is threaded onto the U-shaped frame. Both the arc-shaped clamping plate and the right-angle clamping plate are provided with through holes for cooperating with the locking rod.

[0008] Preferably, both sets of rack one and both sets of rack two are rotated 180 degrees about the central axis of the gear column, with rack two located to the left of rack one and perpendicular to rack one.

[0009] Preferably, the mounting plate has a sliding groove 1 and a sliding groove 2. Sliding groove 1 is used to slide with connecting plate 1, and sliding groove 2 is used to slide with connecting plate 2.

[0010] Preferably, the moving mechanism includes a threaded rod rotatably mounted on the inner wall of the fixed frame, a fixed rod fixedly mounted on the inner wall of the fixed frame on the lower side of the threaded rod, a servo motor fixedly mounted at the front end of the fixed frame, and the output shaft of the servo motor fixedly connected to the front end of the threaded rod; a moving block is threadedly connected to the threaded rod, the lower end of the moving block is slidably connected to the fixed rod, a connecting rod is fixedly connected to the upper end of the moving block, the upper end of the connecting rod is fixedly connected to the lower end of the sliding seat, and a fixed groove is provided on the fixed frame for sliding with the connecting rod.

[0011] Compared with the prior art, this utility model proposes a polishing fixture for carbide cutting tools, which has the following beneficial effects: This invention includes a clamping mechanism driven by a rotating motor. The motor drives a worm gear to rotate, which in turn drives a worm wheel. The worm wheel then drives a rotating shaft, which in turn drives a gear column. The gear column then drives two sets of racks (set 1 and set 2), causing the racks to move in opposite directions via connecting plates (set 1 and set 2). These four ring-shaped clamping components clamp the carbide cutting tool, preventing uneven clamping or unstable clamping direction. This ensures the stability and reliability of the clamped tool during subsequent polishing, improving the polishing effect.

[0012] The clamping component of this utility model is provided with an arc-shaped clamping plate and a right-angle clamping plate, which correspond to the circular blade and the rectangular blade, respectively. It can be adjusted according to the different shapes of the blade (circular or rectangular) to ensure that the shape of the blade is optimally clamped, so that a more uniform and stable clamping force can be provided during clamping, making the polishing process more efficient and precise, and avoiding uneven polishing caused by unstable clamping. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2This is a schematic diagram of the moving mechanism in this utility model; Figure 3 This is a schematic diagram of the left side structure of the clamping mechanism in this utility model; Figure 4 This is a schematic diagram of the right side structure of the clamping mechanism in this utility model; Figure 5 This is a schematic diagram of the internal structure of the clamping mechanism in this utility model; Figure 6 This is a schematic diagram of the clamping component in this utility model; The numbers on the map are: 1. Base plate; 2. Fixing frame; 3. Sliding seat; 4. Moving mechanism; 5. Clamping mechanism; 6. Polishing machine; 201. Fixing groove; 401. Threaded rod; 402. Fixed rod; 403. Servo motor; 404. Moving block; 405. Connecting rod; 501. Mounting plate; 502. Slide groove one; 503. Slide groove two; 504. Mounting bracket; 505. Worm gear; 506. Worm wheel; 507. Rotating motor; 508. Rotating shaft; 509. Gear column; 5010. Rack one; 5011. Connecting plate one; 5012. Rack two; 5013. Connecting plate two; 5014. U-shaped frame; 5015. Rotating column; 5016. Arc-shaped clamping plate; 5017. Right-angle clamping plate; 5018. Locking rod. Detailed Implementation

[0014] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0015] Reference Figure 1 As shown, a polishing fixture for carbide cutting tools includes a base plate 1, a fixed frame 2 and a polishing machine 6 fixedly mounted on the base plate 1, a sliding seat 3 slidably connected to the fixed frame 2, a moving mechanism 4 provided on the inner side of the fixed frame 2, and a clamping mechanism 5 fixedly mounted on the sliding seat 3. In use, the carbide cutting tool is clamped by the clamping mechanism 5, and after clamping, the sliding seat 3 is moved towards the polishing machine 6 by the moving mechanism 4, so that the polishing machine 6 can polish the clamped carbide cutting tool.

[0016] Reference Figure 3-5As shown, specifically in this embodiment, the clamping mechanism 5 includes a mounting plate 501 fixedly mounted on the sliding seat 3. A rotating shaft 508 is rotatably mounted inside the mounting plate 501. A gear column 509 is fixedly mounted on the rotating shaft 508, and a driving component is fixedly connected to the right end of the rotating shaft 508. Two sets of racks 1 5010 and two sets of racks 2 5012 are meshed on the gear column 509. Connecting plates 1 5011 and 2 5013 are fixedly connected to the two sets of racks 1 5010 and 2 5012, respectively. Clamping components are fixedly connected to both connecting plates 1 5011 and 2 5013.

[0017] Reference Figure 3-5 As shown, specifically in this embodiment, the driving component includes a worm gear 506 fixedly connected to the rotating shaft 508. A mounting bracket 504 and a rotating motor 507 are fixedly mounted on the mounting plate 501 on the upper side of the worm gear 506. A worm 505 is rotatably mounted on the inner side of the mounting bracket 504. The lower end of the worm 505 meshes with the worm gear 506. The output shaft of the rotating motor 507 is fixedly connected to one end of the worm 505.

[0018] Furthermore: The clamping mechanism 5 is activated and driven by the rotating motor 507, which in turn drives the worm gear 505 to rotate. The rotation of the worm gear 505 drives the worm wheel 506 to rotate, which in turn drives the rotating shaft 508. The rotating shaft 508 drives the gear column 509, which in turn drives two sets of racks 5010 and two sets of racks 5012. The two sets of racks 5010 and two sets of racks 5012 move their corresponding clamping components towards each other through the connecting plates 5011 and 5013, respectively. The carbide cutting tool is clamped by the four sets of clamping components arranged in a ring, which avoids uneven clamping or unstable clamping direction, ensures the stability and reliability of the clamped tool in subsequent polishing, and improves the polishing effect of the tool.

[0019] Reference Figure 6 As shown, specifically in this embodiment, the clamping component includes several sets of U-shaped frames 5014 respectively fixedly installed on connecting plate one 5011 and connecting plate two 5013. A rotating column 5015 is rotatably installed on the inner wall of the U-shaped frame 5014. An arc-shaped clamping plate 5016 and a right-angle clamping plate 5017 are respectively fixedly connected to both ends of the rotating column 5015. A locking rod 5018 is threadedly connected to the U-shaped frame 5014. Both the arc-shaped clamping plate 5016 and the right-angle clamping plate 5017 are provided with through holes for cooperating with the locking rod 5018.

[0020] Furthermore, the clamping component is equipped with an arc-shaped clamping plate 5016 and a right-angle clamping plate 5017, corresponding to round and rectangular blades respectively. By rotating the locking rod 5018, the locking rod 5018 is disengaged from the through holes opened on the arc-shaped clamping plate 5016 or the right-angle clamping plate 5017, which can be adjusted according to the different shapes of the blades (round or rectangular). After adjustment, the locking rod 5018 is rotated and inserted into the through hole to be fixed again, ensuring that the shape of the blade is optimally clamped, so that a more uniform and stable clamping force can be provided during clamping, making the polishing process more efficient and precise, and avoiding uneven polishing caused by unstable clamping.

[0021] Reference Figure 3-5 As shown, specifically in this embodiment, both sets of racks 5010 and racks 5012 are rotated 180 degrees about the central axis of the gear column 509. Rack 5012 is located to the left of rack 5010 and is perpendicular to rack 5010.

[0022] Reference Figure 3 As shown, specifically in this embodiment, the mounting plate 501 is provided with a sliding groove 502 and a sliding groove 503. The sliding groove 502 is used to slide with the connecting plate 5011, and the sliding groove 503 is used to slide with the connecting plate 5013.

[0023] Reference Figure 2 As shown, specifically in this embodiment, the moving mechanism 4 includes a threaded rod 401 rotatably mounted on the inner wall of the fixed frame 2. A fixed rod 402 is fixedly mounted on the inner wall of the fixed frame 2 on the lower side of the threaded rod 401. A servo motor 403 is fixedly mounted at the front end of the fixed frame 2. The output shaft of the servo motor 403 is fixedly connected to the front end of the threaded rod 401. A moving block 404 is threadedly connected to the threaded rod 401. The lower end of the moving block 404 is slidably connected to the fixed rod 402. A connecting rod 405 is fixedly connected to the upper end of the moving block 404. The upper end of the connecting rod 405 is fixedly connected to the lower end of the sliding seat 3. A fixed groove 201 is provided on the fixed frame 2 for sliding the connecting rod 405.

[0024] Furthermore: the moving mechanism 4 is activated, and the threaded rod 401 is driven to rotate by the servo motor 403. The rotation of the threaded rod 401 drives the moving block 404. Under the guidance and limitation of the fixed rod 402, the moving block 404 drives the sliding seat 3 to move on the fixed frame 2 through the connecting rod 405, thereby driving the clamped blade to move towards the polishing machine 6 to polish the blade.

[0025] The working principle of this utility model is as follows: In use, by rotating the locking rod 5018, the locking rod 5018 is disengaged from the through hole opened on the arc-shaped clamping plate 5016 or the right-angle clamping plate 5017. Then, the clamping plate is adjusted according to the different shapes of the blade (circular or rectangular). There are arc-shaped clamping plates 5016 and right-angle clamping plates 5017, which correspond to circular blades and rectangular blades, respectively. After the adjustment is completed, the locking rod 5018 is rotated and inserted into the through hole to fix it again, thereby ensuring that the shape of the blade is optimally clamped. Then, the clamping mechanism 5 is activated, driven by the rotating motor 507. The rotating motor 507 drives the worm 505 to rotate, which in turn drives the worm wheel 506 to rotate. The worm wheel 506 then drives the rotating shaft 508, which in turn drives the gear column 509. The gear column 509 then drives two sets of racks 5010 and two sets of racks 5012. The two sets of racks 5010 and two sets of racks 5012 move their corresponding clamping components towards each other through the connecting plates 5011 and 5013, respectively. The carbide cutting tool is clamped by the four sets of clamping components arranged in a ring, which avoids uneven clamping or unstable clamping direction, ensuring the stability and reliability of the clamped tool in subsequent polishing and improving the polishing effect of the tool.

[0026] After clamping is completed, the moving mechanism 4 is started, and the threaded rod 401 is driven to rotate by the servo motor 403. The rotation of the threaded rod 401 drives the moving block 404. Under the guidance and limit of the fixed rod 402, the moving block 404 drives the sliding seat 3 to move on the fixed frame 2 through the connecting rod 405, thereby driving the clamped blade to move towards the polishing machine 6 for polishing.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A hard metal insert polishing tool, characterized in that, Includes a base plate (1), on which a fixed frame (2) and a polishing machine (6) are fixedly installed. A sliding seat (3) is slidably connected to the fixed frame (2). A moving mechanism (4) is provided on the inner side of the fixed frame (2). A clamping mechanism (5) is fixedly installed on the sliding seat (3). The clamping mechanism (5) includes a mounting plate (501) fixedly mounted on a sliding seat (3). A rotating shaft (508) is rotatably mounted inside the mounting plate (501). A gear column (509) is fixedly mounted on the rotating shaft (508), and a driving component is fixedly connected to the right end of the rotating shaft (508). Two sets of racks (5010) and two sets of racks (5012) are meshed on the gear column (509). Connecting plates (5011) and (5013) are fixedly connected to the two sets of racks (5010) and the two sets of racks (5012), respectively. Clamping components are fixedly connected to both the connecting plates (5011) and (5013).

2. The polishing tool for cemented carbide inserts according to claim 1, characterized in that: The driving component includes a worm gear (506) fixedly connected to a rotating shaft (508). A mounting bracket (504) and a rotating motor (507) are fixedly mounted on the upper side of the worm gear (506) on a mounting plate (501). A worm (505) is rotatably mounted on the inner side of the mounting bracket (504). The lower end of the worm (505) meshes with the worm gear (506). The output shaft of the rotating motor (507) is fixedly connected to one end of the worm (505).

3. The polisher for cemented carbide inserts according to claim 1, wherein: The clamping component includes several sets of U-shaped frames (5014) respectively fixedly installed on connecting plate one (5011) and connecting plate two (5013). A rotating column (5015) is rotatably installed on the inner wall of the U-shaped frame (5014). An arc-shaped clamping plate (5016) and a right-angle clamping plate (5017) are respectively fixedly connected to both ends of the rotating column (5015). A locking rod (5018) is threadedly connected to the U-shaped frame (5014). Both the arc-shaped clamping plate (5016) and the right-angle clamping plate (5017) are provided with through holes for cooperating with the locking rod (5018).

4. The polisher for cemented carbide inserts according to claim 1, wherein: Both sets of rack one (5010) and both sets of rack two (5012) are rotated 180 degrees about the central axis of the gear column (509). The rack two (5012) is located to the left of the rack one (5010) and is perpendicular to the rack one (5010).

5. The polishing fixture for carbide cutting tools according to claim 1, characterized in that: The mounting plate (501) is provided with a sliding groove 1 (502) and a sliding groove 2 (503). The sliding groove 1 (502) is used to slide with the connecting plate 1 (5011), and the sliding groove 2 (503) is used to slide with the connecting plate 2 (5013).

6. The polishing fixture for carbide cutting tools according to claim 1, characterized in that: The moving mechanism (4) includes a threaded rod (401) rotatably mounted on the inner wall of the fixed frame (2), and a fixed rod (402) fixedly mounted on the inner wall of the fixed frame (2) is provided on the lower side of the threaded rod (401). A servo motor (403) is fixedly mounted on the front end of the fixed frame (2), and the output shaft of the servo motor (403) is fixedly connected to the front end of the threaded rod (401). The threaded rod (401) is threaded with a movable block (404). The lower end of the movable block (404) is slidably connected to the fixed rod (402). The upper end of the movable block (404) is fixedly connected to a connecting rod (405). The upper end of the connecting rod (405) is fixedly connected to the lower end of the sliding seat (3). The fixed frame (2) is provided with a fixed groove (201) for sliding the connecting rod (405).

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