A polishing device for tungsten steel milling cutter processing

Abstract

The utility model discloses a kind of grinding equipment for tungsten steel milling cutter processing, belong to milling cutter processing technical field, including supporting base, the longitudinal front end of supporting base is equipped with polishing disc by supporting structure, the transverse top of supporting base is equipped with moving block by moving component, the inside of moving block is rotatably connected with fixed sleeve pipe that is left-right symmetrical distribution by bearing, the inner wall of fixed sleeve pipe is threadedly connected with tight screw;The inside of moving block is provided with the drive component of drive fixed sleeve pipe rotation;The setting of utility model drive component, by the cooperation of transmission disc, transmission shaft and rectangular frame in it, realize milling cutter even rotation, guarantee milling cutter each part polishing even, improve polishing quality;Limit sleeve pipe limits rack and rectangular frame, prevent motion deviation, guarantee transmission stability;Rotary motor two provide stable power, ensure that milling cutter rotation speed is even, further optimize polishing effect.

Description

Technical Field

[0001] This utility model belongs to the field of milling cutter processing technology, specifically relating to a grinding device for processing tungsten carbide milling cutters. Background Technology

[0002] Tungsten steel end mills are precision metal cutting tools made primarily of tungsten steel. They are specifically designed for use with CNC milling machines, machining centers, and other equipment. They are used for milling various workpieces, including steel, aluminum alloys, titanium alloys, and engineering plastics, and can perform a variety of processes such as planar milling, groove milling, contour engraving, and mold cavity machining.

[0003] Tungsten carbide end mills need to be sharpened primarily to ensure cutting performance and machining quality. Firstly, during prolonged cutting, the cutting edge becomes dull due to friction and impact, leading to increased cutting effort, burrs and tool marks on the workpiece surface, and even failure to meet dimensional requirements. Secondly, iron and aluminum chips generated during cutting easily adhere to the chip evacuation grooves or the cutting edge, accumulating and blocking the chip removal channel, causing overheating in the cutting area, further damaging the cutting edge, and in severe cases, even causing the end mill to break. Additionally, newly manufactured end mills may have tiny burrs or excessively large cutting edge radii; sharpening can make the cutting edge sharper. Furthermore, for lightly worn old end mills, sharpening can restore the cutting edge shape, extend service life, and reduce machining costs.

[0004] Existing grinding equipment requires workers to manually rotate the tungsten carbide end mill back and forth to ensure that the surface of the end mill is in full contact with the grinding disc. However, this process is not only labor-intensive, but also causes fatigue for workers who hold the end mill for a long time, resulting in inconsistent rotation speed and unstable force control. Consequently, uneven grinding occurs on different parts of the end mill, with some areas being over-ground or under-ground, directly affecting the grinding quality. Utility Model Content

[0005] The purpose of this invention is to provide a grinding device for machining tungsten carbide end mills, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a grinding device for processing tungsten carbide end mills, comprising a support base, a grinding disc mounted on the longitudinal front end of the support base via a support structure, a moving block mounted on the transverse top of the support base via a moving component, a fixed sleeve symmetrically distributed on the left and right sides rotatably connected inside the moving block via a bearing, and a set screw threaded onto the inner wall of the fixed sleeve; a driving component for driving the fixed sleeve to rotate is provided inside the moving block, the driving component including a transmission groove formed at the rear end of the moving block, a transmission disc rotatably connected inside the transmission groove, a transmission shaft rotatably connected to the other end of the transmission disc, a rectangular frame movably sleeved on the outer side of the transmission shaft, racks fixedly connected to the left and right sides of the rectangular frame, limit sleeves sleeved on the outer sides of the two racks, a gear fixedly connected to the side surface of the fixed sleeve away from the set screw, and a rotary motor fixedly mounted on the front end of the moving block.

[0007] In a preferred embodiment, the rectangular frame is fixedly connected to the rear end of the movable block, and the rack is slidably connected inside the rectangular frame and meshes with the gear.

[0008] In one preferred embodiment, the support structure includes a support block fixedly connected to the longitudinal front end of the support base, the grinding disc being rotatably connected to the end of the support block away from the support base, and a rotary motor being fixedly installed at the rear end of the support base, the transmission end of the rotary motor passing through the support block and being connected to the grinding disc for transmission.

[0009] In a preferred embodiment, the movable component includes a limiting slide groove formed on the horizontal top of the support base, a lead screw rotatably connected inside the limiting slide groove, and a limiting slider adapted to the limiting slide groove fixedly connected to the bottom of the movable block, the limiting slider having a threaded hole adapted to the lead screw inside.

[0010] In a preferred embodiment, the top of the support base is fixedly connected with support columns that are symmetrically distributed on the left and right sides. A limiting slide rod is fixedly connected to one side of the support column near the front longitudinal end of the support base. The limiting slide rod passes through the interior of the moving block. A handle is rotatably connected to the front transverse end of the support base. The handle is fixedly connected to one end of the lead screw.

[0011] In a preferred embodiment, the support base has an "L"-shaped structure, and the transmission groove extends through the top of the support base.

[0012] Compared with the prior art, the beneficial effects of this utility model are: The drive assembly of this utility model, through the cooperation of the transmission disc, transmission shaft and rectangular frame, enables the milling cutter to rotate evenly, ensuring uniform grinding of all parts of the milling cutter and improving grinding quality; the limiting sleeve limits the rack and rectangular frame to prevent movement deviation and ensure transmission stability; the second rotary motor provides stable power to ensure uniform milling cutter rotation speed and further optimize the grinding effect.

[0013] In this invention, the support block provides a stable rotational support point for the grinding disc, preventing wobbling or deviation when the grinding disc rotates at high speed, and greatly improving the rotational stability of the grinding disc. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This is a three-dimensional structural diagram of the support base component of this utility model; Figure 3 This is a rear-view three-dimensional structural diagram of the movable block component of this utility model; Figure 4 This is a front view structural diagram of the movable block component of this utility model.

[0015] In the diagram: 1. Support base; 2. Grinding disc; 3. Moving block; 4. Fixing sleeve; 5. Set screw; 6. Support block; 7. Rotary motor one; 8. Moving assembly; 301. Transmission groove; 302. Transmission disc; 303. Transmission shaft; 304. Rectangular frame; 305. Rack; 306. Limiting sleeve; 307. Gear; 308. Rotary motor two; 801. Limiting slide groove; 802. Lead screw; 803. Support column; 804. Limiting slide bar; 805. Limiting slider; 806. Threaded hole; 807. Handle. Detailed Implementation

[0016] The present invention will be further described below with reference to the embodiments.

[0017] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0018] Please see Figure 1-4This utility model provides a grinding device for tungsten carbide end mill processing, including a support base 1. A grinding disc 2 is installed at the longitudinal front end of the support base 1 via a support structure, which grinds the tungsten carbide end mill by contacting it. A moving block 3 is installed at the transverse top of the support base 1 via a moving component 8, which drives the tungsten carbide end mill to move back and forth, thereby increasing the adaptability to end mills of different lengths. A fixed sleeve 4 is symmetrically distributed on both sides inside the moving block 3 via a bearing. The fixed sleeve 4 can store multiple end mills, improving the grinding efficiency of the operator. A set screw 5 is threaded on the inner wall of the fixed sleeve 4, and the end mills inside the fixed sleeve 4 are fixed by rotating the set screw 5, which can effectively improve the stability and convenience of fixing. A drive component for driving the fixed sleeve 4 to rotate is provided inside the moving block 3. The drive component includes a transmission mechanism located at the rear end of the moving block 3. The transmission groove 301 is rotatably connected to a transmission disc 302. The other end of the transmission disc 302 is rotatably connected to a transmission shaft 303. The transmission disc 302 drives the transmission shaft 303 to perform circular motion, thereby moving the outer rectangular frame 304 back and forth, realizing the left and right reciprocating movement of the rectangular frame 304. The outer side of the transmission shaft 303 is movably sleeved with the rectangular frame 304. Both left and right sides of the rectangular frame 304 are fixedly connected with racks 305. The outer sides of the two racks 305 are sleeved with limit sleeves 306, which can provide limit support for the racks 305 and the rectangular frame 304. The side surface of the fixed sleeve 4 away from the set screw 5 is fixedly connected with a gear 307. The front end of the moving block 3 is fixedly installed with a rotary motor 308. The rectangular frame 304 is fixedly connected to the rear end of the moving block 3. The racks 305 are slidably connected inside the rectangular frame 304 and mesh with the gears 307.

[0019] The movable component 8 at the top of the horizontal support base 1 can drive the movable block 3 to move back and forth, thereby adjusting the position of the milling cutter on the movable block 3; the fixed sleeve 4 is used to place the milling cutter to be ground, and rotating the set screw 5 connected to the inner wall can make the end of the set screw 5 press against the milling cutter to complete the fixation; by starting the rotary motor 308, the transmission disk 302 in the transmission groove 301 is driven to rotate, and the transmission disk 302 drives the transmission shaft 303 to make a circular motion, thereby moving the outer sleeve rectangular frame 304 back and forth; the racks 305 on both sides of the rectangular frame 304 slide along the limiting sleeve 306, and through meshing with the gear 307 at the end of the fixed sleeve 4, drive the fixed sleeve 4 and the internal milling cutter to rotate back and forth. The drive assembly of this utility model, through the cooperation of the transmission disc 302, the transmission shaft 303 and the rectangular frame 304, enables the milling cutter to rotate evenly, ensuring uniform grinding of all parts of the milling cutter and improving grinding quality; the limiting sleeve 306 limits the rack 305 and the rectangular frame 304 to prevent movement deviation and ensure transmission stability; the rotary motor 308 provides stable power to ensure uniform milling cutter rotation speed and further optimize the grinding effect.

[0020] Specifically, such as Figure 1 and Figure 2 As shown, the support structure includes a support block 6 fixedly connected to the longitudinal front end of the support base 1, and a grinding disc 2 rotatably connected to the end of the support block 6 away from the support base 1. The installation of the support block 6 can improve the rotation stability of the grinding disc 2. A rotary motor 7 is fixedly installed at the rear end of the support base 1. The transmission end of the rotary motor 7 passes through the support block 6 and is connected to the grinding disc 2.

[0021] The support block 6 provides a stable rotation support point for the grinding disc 2, preventing the grinding disc 2 from shaking or shifting when rotating at high speed, and greatly improving the rotational stability of the grinding disc 2; the rotary motor 7 is directly driven by the grinding disc 2, which can provide continuous and uniform power, ensuring the stable rotation speed of the grinding disc 2, avoiding uneven grinding by the milling cutter due to speed fluctuations, and ensuring the stability and consistency of the grinding operation.

[0022] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, the movable component 8 includes a limiting slide groove 801 formed on the horizontal top of the support base 1. A lead screw 802 is rotatably connected inside the limiting slide groove 801. A limiting slider 805 adapted to the limiting slide groove 801 is fixedly connected to the bottom of the movable block 3. A threaded hole 806 adapted to the lead screw 802 is formed inside the limiting slider 805. The limiting slider 805 is threadedly connected to the lead screw 802 through the threaded hole 806. Support columns 803 symmetrically distributed on the left and right sides are fixedly connected to the horizontal top of the support base 1. A limiting slide rod 804 is fixedly connected to the side of the support column 803 near the longitudinal front end of the support base 1. The limiting slide rod 804 penetrates the interior of the movable block 3. A handle 807 is rotatably connected to the horizontal front end of the support base 1. The handle 807 is fixedly connected to one end of the lead screw 802.

[0023] When the operator turns handle 807, because handle 807 is fixedly connected to lead screw 802, it will cause lead screw 802 to rotate synchronously within the limiting slide groove 801. Since the limiting slider 805 is embedded in the limiting slide groove 801, it cannot rotate with lead screw 802 due to the limitation of the slide groove structure. The rotational motion of lead screw 802 is converted into the linear back-and-forth sliding of limiting slider 805 along limiting slide groove 801 through threaded hole 806, thereby driving the moving block 3 fixed to limiting slider 805 to move back and forth. At the same time, moving block 3 slides along limiting slide rod 804 that passes through it, ensuring that moving block 3 always moves in a fixed direction and avoids deviation.

[0024] Specifically, such as Figure 1 and Figure 2 As shown, the structure of the support base 1 is "L" shaped, and the transmission groove 301 passes through the top of the support base 1.

[0025] Working principle and usage process of this utility model: When the staff operates the device, they first put the tungsten carbide end mill to be ground into the fixed sleeve 4 inside the moving block 3, and then rotate the set screw 5 connected to the inner wall of the fixed sleeve 4 so that the end of the set screw 5 presses against the end mill to complete the fixation. Next, the rotary motor 7 fixedly installed at the rear end of the support base 1 is started. Its transmission end drives the grinding disc 2 to rotate at high speed. At the same time, the rotary motor 308 at the front end of the moving block 3 is started. The rotary motor 308 drives the transmission disc 302 inside the transmission groove 301 to rotate. The transmission disc 302 drives the transmission shaft 303 to make a circular motion, which in turn moves the rectangular frame 304 that is movably sleeved on the outside back and forth, causing the rectangular frame 304 to move back and forth left and right. The racks 305 on the left and right sides of the rectangular frame 304 slide along the limiting sleeve 306 sleeved on the outside, and drive the fixed sleeve 4 and the internal milling cutter to rotate back and forth by meshing with the gear 307. Afterwards, the operator turns the handle 807. Since the handle 807 is fixedly connected to the lead screw 802, the lead screw 802 rotates synchronously. The bottom of the moving block 3, which is adapted to the limiting slide groove 801, is threaded with the lead screw 802 through the threaded hole 806 that is adapted to the lead screw 802. Due to the limitation of the limiting slide groove 801, it cannot rotate with the lead screw 802, and thus transforms into a linear sliding along the limiting slide groove 801. This causes the moving block 3 to move back and forth along the limiting slide rod 804, adjusting the contact position between the milling cutter and the high-speed rotating grinding disc 2, until all parts of the milling cutter are in full contact with the grinding disc 2 during the reciprocating rotation, thus completing the entire grinding operation.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grinding device for machining tungsten carbide end mills, comprising a support base (1), characterized in that: A grinding disc (2) is mounted on the longitudinal front end of the support base (1) via a support structure. A moving block (3) is mounted on the transverse top of the support base (1) via a moving component (8). A fixed sleeve (4) is symmetrically distributed on the left and right sides and is rotatably connected inside the moving block (3) via a bearing. A set screw (5) is threaded onto the inner wall of the fixed sleeve (4). A driving component for driving the fixed sleeve (4) to rotate is provided inside the moving block (3). The driving component includes a transmission groove (301) opened at the rear end of the moving block (3). The internal rotational connection of the moving block (3) is a transmission disk (302), the other end of the transmission disk (302) is a transmission shaft (303), the outer side of the transmission shaft (303) is movably sleeved with a rectangular frame (304), the left and right sides of the rectangular frame (304) are fixedly connected with racks (305), the outer sides of the two racks (305) are sleeved with limit sleeves (306), the side surface of the fixed sleeve (4) away from the set screw (5) is fixedly connected with a gear (307), and the front end of the moving block (3) is fixedly installed with a rotary motor (308).

2. The grinding equipment for machining tungsten carbide end mills according to claim 1, characterized in that: The rectangular frame (304) is fixedly connected to the rear end of the movable block (3), and the rack (305) is slidably connected inside the rectangular frame (304) and meshes with the gear (307).

3. The grinding equipment for machining tungsten carbide end mills according to claim 1, characterized in that: The support structure includes a support block (6) fixedly connected to the longitudinal front end of the support base (1), and the grinding disc (2) is rotatably connected to the end of the support block (6) away from the support base (1). A rotary motor (7) is fixedly installed at the rear end of the support base (1). The transmission end of the rotary motor (7) passes through the support block (6) and is connected to the grinding disc (2) in a transmission connection.

4. The grinding equipment for machining tungsten carbide end mills according to claim 1, characterized in that: The moving component (8) includes a limiting slide groove (801) opened on the horizontal top of the support base (1), a lead screw (802) is rotatably connected inside the limiting slide groove (801), and a limiting slider (805) adapted to the limiting slide groove (801) is fixedly connected to the bottom of the moving block (3). The limiting slider (805) has a threaded hole (806) adapted to the lead screw (802) inside.

5. The grinding equipment for machining tungsten carbide end mills according to claim 4, characterized in that: The support base (1) is fixedly connected to a support column (803) that is symmetrically distributed on the left and right sides. The support column (803) is fixedly connected to a limiting slide rod (804) on the side near the longitudinal front end of the support base (1). The limiting slide rod (804) passes through the interior of the moving block (3). The support base (1) is rotatably connected to a handle (807) at the transverse front end. The handle (807) is fixedly connected to one end of the lead screw (802).

6. The grinding equipment for machining tungsten carbide end mills according to claim 4, characterized in that: The structure of the support base (1) is "L" shaped, and the transmission groove (301) passes through the top of the support base (1).

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