A processing tool for a cemented carbide reamer

Abstract

The application relates to a processing tool for a hard alloy reamer, and relates to the field of reamer processing equipment, which comprises a workbench, a reamer polisher is installed on the workbench, a reamer mounting piece for fixing a reamer to be processed is installed on the workbench through a sliding piece, the reamer mounting piece comprises a supporting seat, a first clamping mechanism and a second clamping mechanism, the supporting seat is slidingly connected on the workbench, the first clamping mechanism is fixedly installed on one end of the supporting seat adjacent to the reamer polisher, the second clamping mechanism is slidingly connected on the supporting seat, a positioning assembly is installed on the second clamping mechanism and used for fixing the second clamping mechanism. The application has the effect of further optimizing the fixed position of the reamer, thereby avoiding damage to the reamer body.

Description

Technical Field

[0001] This application relates to the field of reamer processing equipment, and more particularly to a machining fixture for carbide reamers. Background Technology

[0002] Carbide reamers, as an important component of precision cutting tools, play a vital role in modern machining. Their high strength, wear resistance, and corrosion resistance make them ideal for machining high-hardness materials. By removing a thin layer of metal from the machined surface of a hole, carbide reamers enable precise control over the size and shape of the hole, and are widely used in aerospace, automotive manufacturing, and other fields, significantly improving machining accuracy and production efficiency.

[0003] In the machining of sound-grade alloy reamers, simple clamps and fixing devices are typically used to position and hold the tool. Specifically, conventional methods include using fixed clamps, manual bolts, and simple sliding support structures.

[0004] However, the aforementioned traditional tooling methods have revealed obvious defects in practical applications: when dealing with cutting tools of different specifications and lengths, conventional clamps or fixing devices often only fix one end of the reamer or fix the middle part when the length is too long, which can easily lead to damage to the reamer body due to the excessive distance between the cutting head to be processed and the clamping part. Utility Model Content

[0005] To further optimize the fixing position of the reamer and thus avoid damage to the reamer body, this application provides a machining fixture for a carbide reamer.

[0006] The machining fixture for a carbide reamer provided in this application adopts the following technical solution:

[0007] A machining fixture for a carbide reamer includes a workbench with a reamer grinder mounted on it. A reamer mounting component for fixing the reamer to be machined is mounted on the workbench via a sliding member. The reamer mounting component includes a support base, a first clamping mechanism, and a second clamping mechanism. The support base is slidably connected to the workbench. The first clamping mechanism is fixedly mounted on one end of the support base adjacent to the reamer grinder. The second clamping mechanism is slidably connected to the support base. A positioning component is mounted on the second clamping mechanism for fixing it in place.

[0008] By adopting the above technical solution, efficient machining and precise fixing of carbide reamers are achieved. A reamer grinder is mounted on the workbench, and together with the reamer mounting component driven by the sliding mechanism, the position of the reamer to be machined can be flexibly adjusted, improving machining accuracy. The first and second clamping mechanisms on the support base securely clamp different parts of the reamer to be machined, ensuring stability during machining. The position of the second clamping mechanism can be adjusted according to different reamer sizes, thus allowing for adjustment of the positions of the two clamping mechanisms for different reamer specifications. Simultaneously, the positioning component fixes the second clamping mechanism, further enhancing the reliability of the entire device and effectively preventing displacement during machining, thereby ensuring the quality and efficiency of reamer machining.

[0009] In one specific implementation scheme, the first clamping mechanism includes a first support rod, a first clamping seat, a first motor, a clamping gear, a limiting ring, and a gripper. The first support rod is mounted on the support seat, and the first clamping seat is mounted on the end of the first support rod opposite to the support seat. A through hole for a reamer to pass through is opened in the center of the first clamping seat. A cavity is opened inside the first clamping seat, and the limiting ring is rotatably connected in the cavity. The first motor is mounted on the first clamping seat, and the output shaft of the first motor extends through the side wall of the first clamping seat into the cavity and is connected to the clamping gear. A toothed ring is provided on one side wall of the limiting ring corresponding to the clamping gear, and is driven by meshing with the clamping gear through the toothed ring. A plurality of sliding grooves are opened on the first clamping seat, and a limiting block is slidably connected in the sliding grooves. A spiral block is provided on the other side wall of the limiting ring, and a limiting groove is provided on the limiting block. The spiral block is slidably connected in the limiting groove, thereby driving the limiting block by squeezing the side wall of the limiting groove through the spiral block. The gripper is mounted on the limiting block.

[0010] By adopting the above technical solution, the first support rod and the first clamping seat provide a stable foundation for the clamping operation. The first motor drives the clamping gear to mesh with the toothed ring on the limiting ring, so that when the limiting ring rotates, it can drive the spiral block to slide in the limiting groove, thereby pushing the limiting block to move along the slide groove. Finally, the jaws reliably clamp the reamer, which not only improves the clamping accuracy but also enhances the controllability of the clamping force, ensuring the stability of the reamer during the machining process.

[0011] In one specific implementation, the slide grooves are evenly distributed on the circumferential portion of the first clamping seat, and the limiting blocks are installed accordingly.

[0012] By adopting the above technical solution, the evenly spaced grooves on the circumferential part of the first clamping seat ensure the stable sliding of the limiting block within the grooves, thereby achieving uniform clamping of the reamer. The corresponding installation of the limiting block further improves the clamping accuracy, keeps the reamer stable during processing, avoids processing errors caused by uneven clamping, and improves processing precision and product quality.

[0013] In one specific implementation scheme, the second clamping mechanism includes a second support rod and a second clamping seat. The support seat has a positioning groove. One end of the second support rod is slidably connected in the positioning groove. The second clamping seat is installed at the other end of the second support rod. A cylinder is embedded at the center of the rear end face of the second clamping seat. A fixed cover is provided at the end of the cylinder. Several slots are provided on the outer circumference of the second clamping seat. A first bevel gear is provided in the middle of the cylinder. A rotating shaft is provided at the central axis of the first bevel gear. The rotating shaft passes through the fixed cover. A handwheel is provided at the end of the rotating shaft. Several second bevel gears corresponding to the slots are also provided on one side of the first bevel gear. Each of the second bevel gears is provided with a drive threaded rod. The drive threaded rod extends into the slot. Several clamping plates are also provided on the front end face of the second clamping seat. A clamping block is provided on the clamping plate corresponding to the slot. A third threaded hole is provided on the clamping block.

[0014] By adopting the above technical solution, the second support rod cooperates with the positioning groove on the support base, allowing the second clamping base to slide and adjust its position along the support base, thereby accommodating reamers of different sizes. The first bevel gear inside the cylinder is manually driven through a rotating shaft and handwheel, driving multiple second bevel gears to rotate synchronously. This, in turn, causes the drive threaded rod to push the locking block on the clamping plate to move in the locking groove, realizing the opening and closing action of the clamping plate. The arc design and locking tooth structure of the clamping plate can effectively increase the contact area and friction with the reamer surface, ensuring clamping stability while avoiding damage to the reamer surface.

[0015] In one specific implementation, the fixing cover is fixedly connected to the cylinder by bolts, the clamping plates are distributed in a ring at equal intervals, the clamping plates and the clamping blocks are integrally formed, the width of the clamping blocks is adapted to the width of the clamping slots, the clamping plates are arc-shaped, and the inner sidewall of the clamping plates is also provided with a number of clamping teeth, the clamping teeth are distributed at equal intervals, and the clamping teeth and the clamping plates are integrally formed.

[0016] By adopting the above technical solution, the width of the clamping block is matched with the width of the clamping slot, which ensures the accuracy of the clamping plate positioning and reduces processing errors; the clamping plate is arc-shaped and fits the outer surface of the reamer, increasing the contact area and improving the clamping reliability; the cleats on the inner sidewall of the clamping plate are evenly distributed, which further enhances the clamping force and effectively prevents the reamer from shifting or rotating during processing.

[0017] In one specific implementation scheme, the first bevel gear is welded and fixed to the rotating shaft, the handwheel is fixedly connected to the rotating shaft by bolts, the second bevel gears are distributed in a ring with equal spacing, and the second bevel gears mesh with the first bevel gears. The second bevel gears and the drive threaded rod are integrally formed, the diameter of the drive threaded rod is adapted to the diameter of the third threaded hole, and a second threaded hole communicating with the slot is opened near the edge of the rear end face of the second clamping seat, and a fastening bolt is provided in the second threaded hole.

[0018] By adopting the above technical solution, the first bevel gear is welded and fixed to the rotating shaft, ensuring the connection strength and transmission stability between the two and preventing loosening or detachment during use. The handwheel is fixedly connected to the rotating shaft with bolts, facilitating disassembly and installation, and providing simple and convenient operation. The second bevel gear is distributed in a ring with equal spacing and meshes with the first bevel gear, enabling multi-point uniform force distribution and improving clamping accuracy and reliability. The second bevel gear and the drive threaded rod are integrally formed, enhancing the overall structure and durability, and preventing failures caused by connector failure. The drive threaded rod is matched with the diameter of the third threaded hole, ensuring the stability and adjustment accuracy of the clamping plate. Fastening bolts are installed in the second threaded hole, further improving the clamping firmness and preventing displacement during processing, thereby ensuring high quality and high precision in the machining of carbide reamers.

[0019] In one specific implementation, the first clamping mechanism and the second clamping mechanism are arranged coaxially.

[0020] In one specific implementation, the sliding component includes a sliding motor and a sliding lead screw. A sliding groove is provided on the workbench, and a sliding block is provided on the workbench. The sliding block is slidably connected in the sliding groove. The sliding motor is installed on the workbench and in the sliding groove, and is fixedly connected to the output shaft of the sliding motor. The sliding lead screw is drivenly connected to the sliding block.

[0021] By adopting the above technical solution, the sliding motor and sliding lead screw enable precise sliding positioning of the reamer mounting component on the workbench, thereby ensuring more flexible and accurate position adjustment of the reamer during grinding. The combined use of the sliding groove and sliding block further improves the stability and guidance of the sliding, effectively avoiding possible offset during the sliding process, thus improving the accuracy and efficiency of carbide reamer machining.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. By setting sliding parts and sliding reamer mounting parts on the workbench, efficient positioning and flexible adjustment of the reamer are achieved, which significantly improves processing efficiency and reduces positioning deviation;

[0024] 2. The combined design of the first and second clamping mechanisms can adapt to different specifications of carbide reamers, improving the versatility and flexibility of the tooling;

[0025] 3. The design of the positioning component in the second clamping mechanism ensures the stability and reliability of the clamping process and effectively avoids the problem of the reamer loosening or shifting during the machining process. Attached Figure Description

[0026] Figure 1 This is a structural schematic diagram of an embodiment of this application.

[0027] Figure 2 This is a front view of the first clamping mechanism in the embodiments of this application.

[0028] Figure 3 This is a cross-sectional view of the first clamping mechanism in an embodiment of this application.

[0029] Figure 4 This is a cross-sectional view of the second clamping mechanism in an embodiment of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. Workbench; 2. Reamer grinder; 3. Reamer mounting component; 31. Support base; 32. First clamping mechanism; 321. First support rod; 322. First clamping seat; 323. First motor; 324. Clamping gear; 325. Limiting ring; 326. Gripper; 33. Second clamping mechanism; 331. Second support rod; 332. Second clamping seat; 333. First bevel gear; 334. Second bevel gear; 335. Drive threaded rod; 336. Clamping plate; 337. Locking block; 4. Sliding component; 41. Sliding motor; 42. Sliding lead screw. Detailed Implementation

[0031] This application discloses a machining fixture for a cemented carbide reamer.

[0032] like Figure 1As shown, the machining fixture for carbide reamers includes a workbench 1, a reamer grinder 2, a sliding component 4, and a reamer mounting component 3 for fixing the reamer. The sliding component 4 includes a sliding motor 41 and a sliding lead screw 42. The workbench 1 has a sliding groove, and a sliding block is provided on the workbench 1, slidably connected within the sliding groove. The sliding motor 41 is mounted on the workbench 1, within the sliding groove, and fixedly connected to its output shaft. The sliding lead screw 42 is driven by the sliding block. The reamer mounting component 3 consists of a support base 31, a first clamping mechanism 32, and a second clamping mechanism 33. The sliding component 4 enables the support base 31 to slide on the workbench 1. The first clamping mechanism 32 is fixedly mounted on the support base 31 near the reamer grinder 2, while the second clamping mechanism 33 is slidably connected to the support base 31 and equipped with a positioning component to fix its position. This design ensures stability and flexibility during the reamer machining process, thereby improving machining efficiency and accuracy.

[0033] like Figure 2 and Figure 3 As shown, the first clamping mechanism 32 includes a first support rod 321, a first clamping seat 322, a first motor 323, a clamping gear 324, a limiting ring 325, and a gripper 326. The first support rod 321 is mounted on the support seat 31, and the first clamping seat 322 is mounted on its other end. A through hole for a reamer to pass through is provided in the center of the first clamping seat 322. A cavity, annular in shape, is provided inside the first clamping seat 322. The limiting ring 325 is rotatably connected to the side wall of the cavity. The first motor 323 is mounted on the outer side wall of the first clamping seat 322. The output shaft of the first motor 323 extends through the side wall of the first clamping seat 322 into the cavity and is fixedly connected to the clamping gear 324. Rotation of the output shaft drives the clamping gear 324 to rotate. The limiting ring 325 has teeth on its side wall facing the clamping gear 324. The limiting ring 325 is driven to mesh with the clamping gear 324 through a toothed ring. Three sliding grooves are evenly opened on the circumferential part of the first clamping seat 322. The sliding grooves are connected to the cavity and extend towards the center of the first clamping seat 322. A limiting block is slidably connected in the sliding groove. A spiral tube is provided on the other side wall of the limiting ring 325. A limiting groove is correspondingly provided on the limiting block. The spiral groove is threadedly connected to the limiting groove. The limiting block is driven to slide in the sliding groove by the spiral tube pressing the side wall of the limiting groove. The gripper 326 is installed on the end of the limiting block away from the sliding groove.

[0034] The first support rod 321 can be made of high-strength steel, possessing excellent bending resistance and wear resistance. The diameter of the through hole in the first clamping seat 322 can be adjusted according to actual needs to accommodate reamers of different specifications. The meshing transmission method between the limiting ring 325 and the clamping gear 324 can also be replaced with other types of transmission mechanisms, such as belt drive or chain drive, depending on the actual application scenario and cost budget.

[0035] like Figure 4 As shown, the second clamping mechanism 33 includes a second support rod 331 and a second clamping seat 332. The support seat 31 has a positioning groove along its length. One end of the second support rod 331 is slidably connected to the positioning groove, and the second support seat 31 is installed at the other end of the second support rod 331. A cylinder is embedded at the center of the rear end face of the second clamping seat 332, and a fixed cap is provided at the end of the cylinder. A first bevel gear is located in the middle of the cylinder, and a rotating shaft is located at the central axis of the first bevel gear. The rotating shaft passes through the fixed cap and has a handwheel at its end. Several second bevel gears corresponding to the slots are provided on one side of the first bevel gear. Each second bevel gear has a driving threaded rod 335 extending into the slot. Several clamping plates 336 are provided on the front end face of the second clamping seat 332. A locking block 337 is provided on the clamping plate 336 corresponding to the slot, and a third threaded hole is provided on the locking block 337.

[0036] The second support rod 331 can be made of aluminum alloy, which is lightweight and high-strength. The cylindrical structure can be replaced with other types of transmission devices, such as worm gear transmission or hydraulic transmission, to meet the needs of different scenarios. The clamping plate 336 is designed in the shape of an arc plate, with several locking teeth on its inner wall. The locking teeth are evenly distributed and integrally formed with the clamping plate 336. This design can effectively increase the friction between the clamping plate 336 and the reamer, preventing slippage during processing.

[0037] Rotating the handwheel drives the rotating shaft, which in turn drives the first bevel gear. The first bevel gear meshes with the second bevel gear, causing the drive threaded rod 335 to move in the slot, thereby driving the clamping plate 336 to clamp or release. This design not only improves the flexibility of clamping but also allows for quick switching between reamers of different sizes, significantly improving processing efficiency.

[0038] The implementation principle of a machining fixture for a carbide reamer according to an embodiment of this application is as follows: by cleverly combining a first clamping mechanism 32 and a second clamping mechanism 33, efficient positioning and flexible adjustment of the carbide reamer are achieved. The first clamping mechanism 32 utilizes a motor-driven gear transmission system to ensure that the jaws 326 can firmly clamp the reamer; the second clamping mechanism 33 allows for rapid switching between reamers of different specifications through manual adjustment. The entire fixture system is compact in structure and easy to operate, significantly improving machining efficiency and accuracy, solving the problems existing in traditional fixture methods, and further optimizing the fixing position of the reamer to avoid damage to the reamer body.

[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A machining fixture for a carbide reamer, comprising a worktable (1), characterized in that: A reamer grinder (2) is installed on the workbench (1). A reamer mounting component (3) for fixing the reamer to be processed is installed on the workbench (1) via a sliding component (4). The reamer mounting component (3) includes a support base (31), a first clamping mechanism (32), and a second clamping mechanism (33). The support base (31) is slidably connected to the workbench (1). The first clamping mechanism (32) is fixedly installed on the support base (31) near one end of the reamer grinder (2). The second clamping mechanism (33) is slidably connected to the support base (31). A positioning component is installed on the second clamping mechanism (33) for fixing the second clamping mechanism (33).

2. The machining fixture for the carbide reamer according to claim 1, characterized in that: The first clamping mechanism (32) includes a first support rod (321), a first clamping seat (322), a first motor (323), a clamping gear (324), a limiting ring (325), and a gripper (326). The first support rod (321) is mounted on a support base (31), and the first clamping seat (322) is mounted on the end of the first support rod (321) away from the support base (31). A through hole for a reamer to pass through is provided in the center of the first clamping seat (322), and a cavity is provided inside the first clamping seat (322). The limiting ring (325) is rotatably connected in the cavity. The first motor (323) is mounted on the first clamping seat (322). Above, the output shaft of the first motor (323) extends through the side wall of the first clamping seat (322) into the cavity and is connected to the clamping gear (324). A toothed ring is provided on one side wall of the limiting ring (325) corresponding to the clamping gear (324), and is driven by meshing with the clamping gear (324) through the toothed ring. Several sliding grooves are provided on the first clamping seat (322), and a limiting block is slidably connected in the sliding groove. A spiral block is provided on the other side wall of the limiting ring (325), and a limiting groove is provided on the limiting block. The spiral block is slidably connected in the limiting groove, thereby driving the limiting block by squeezing the side wall of the limiting groove through the spiral block. The gripper (326) is installed on the limiting block.

3. The machining fixture for the carbide reamer according to claim 2, characterized in that: The grooves are evenly distributed on the circumferential portion of the first clamping seat (322), and the limiting blocks are installed accordingly.

4. The machining fixture for the carbide reamer according to claim 1, characterized in that: The second clamping mechanism (33) includes a second support rod (331) and a second clamping seat (332). The support seat (31) has a positioning groove. One end of the second support rod (331) is slidably connected to the positioning groove. The second clamping seat (332) is installed at the other end of the second support rod (331). A cylinder is embedded at the center of the rear end face of the second clamping seat (332). A fixed cap is provided at the end of the cylinder. Several slots are formed on the outer circumference of the second clamping seat (332). A first bevel gear is provided in the middle of the cylinder. A rotating shaft is provided at the central axis of a bevel gear. The rotating shaft passes through a fixed cover and a handwheel is provided at the end of the rotating shaft. Several second bevel gears corresponding to the slots are also provided on one side of the first bevel gear. Each of the second bevel gears is provided with a drive threaded rod (335). The drive threaded rod (335) extends into the slot. Several clamping plates (336) are also provided on the front end face of the second clamping seat (332). A clamping block (337) is provided on the clamping plate (336) at the position corresponding to the slot. A third threaded hole is opened on the clamping block (337).

5. The machining fixture for the carbide reamer according to claim 4, characterized in that: The fixing cover is fixedly connected to the cylinder by bolts. The clamping plate (336) is distributed in a ring with equal spacing. The clamping plate (336) and the card block (337) are integrally formed. The width of the card block (337) is adapted to the width of the card slot. The clamping plate (336) is arc-shaped. The inner side wall of the clamping plate (336) is also provided with several card teeth. The card teeth are distributed at equal intervals. The card teeth and the clamping plate (336) are integrally formed.

6. The machining fixture for the carbide reamer according to claim 4, characterized in that: The first bevel gear is welded and fixed to the rotating shaft. The handwheel is fixedly connected to the rotating shaft by bolts. The second bevel gear is distributed in a ring with equal spacing and meshes with the first bevel gear. The second bevel gear and the drive threaded rod (335) are integrally formed. The diameter of the drive threaded rod (335) is adapted to the diameter of the third threaded hole. The rear end face of the second clamping seat (332) is provided with a second threaded hole communicating with the slot near the edge. A fastening bolt is provided in the second threaded hole.

7. The machining fixture for the carbide reamer according to claim 1, characterized in that: The first clamping mechanism (32) and the second clamping mechanism (33) are arranged on the same axis.

8. The machining fixture for the carbide reamer according to claim 1, characterized in that: The sliding component (4) includes a sliding motor (41) and a sliding lead screw (42). A sliding groove is provided on the workbench (1). A sliding block is provided on the workbench (1). The sliding block is slidably connected in the sliding groove. The sliding motor (41) is installed on the workbench (1). The sliding motor (41) is installed in the sliding groove and is fixedly connected to the output shaft of the sliding motor (41). The sliding lead screw (42) is drivenly connected to the sliding block.

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