A profiling milling device

Abstract

The utility model relates to the technical field of profiling milling, specifically relates to a profiling milling device, including the bottom plate, be provided with the milling mechanism on the bottom plate top, still include the fixed establishment for compactly fixed material, fixed establishment is located below the bottom plate, and fixed establishment includes the fixed structure for the position clamping fixed material, the compact structure for compactly fixed material after fixing, profiling mould upper end is equipped with work piece, and the work piece upper end places the backing plate, and the backing plate inside is equipped with the adjusting structure for adjusting the stress area of work piece. Advantageous effects: through fixed structure preliminary positioning clamping to work piece, then utilize adjusting structure to adjust the stress area between backing plate and work piece, the bigger the work piece volume processed, the stress area between backing plate and work piece is just bigger, to reduce the phenomenon that work piece appears when processing to incline, further improve the processing quality of work piece, improve the efficiency of profiling milling.

Description

Technical Field

[0001] This utility model relates to the field of profile milling technology, and in particular to a profile milling device. Background Technology

[0002] CNC milling machines are automatic machining equipment developed from general milling machines. The machining processes of the two are basically the same, and their structures are also somewhat similar. CNC milling machines are divided into two main categories: those without tool magazines and those with tool magazines. CNC milling machines with tool magazines are also known as machining centers. Currently, when using CNC milling machines, it is often necessary to use clamping components to clamp and position the workpiece in order to achieve stable machining.

[0003] By comparing a CNC milling contour machining device with patent publication number CN222404665U, it can be found that the milling workpiece can be placed by setting up a mounting support, an electric push cylinder, a clamping plate and a protective pad. The electric push cylinder and the clamping plate cooperate to achieve rapid mechanical clamping and positioning of the milling workpiece. However, when clamping a large workpiece, the length of the clamping plate cannot be adjusted quickly, which reduces the force-bearing area between the clamping plate and the workpiece. This may cause uneven force on the workpiece and cause it to wobble, which may reduce the machining quality of the workpiece. Utility Model Content

[0004] The purpose of this invention is to provide a contour milling device to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A contour milling device includes a base plate, a milling mechanism disposed above the base plate, and a fixing mechanism for clamping and fixing materials, the fixing mechanism being located below the base plate;

[0007] The fixing mechanism includes a fixing structure for clamping and fixing the material position, and a clamping structure for pressing the material after fixing;

[0008] The fixed structure includes a four-jaw chuck rotatably mounted at the bottom of the base plate. A rotary motor is installed on the rotating end of the four-jaw chuck, and the output end of the rotary motor is fixed to the rotating end of the four-jaw chuck through a coupling. A copying mold is held at the center of the four-jaw chuck, and a workpiece is placed on the upper end of the copying mold. A pad is placed on the upper end of the workpiece, and an adjustment structure is provided inside the pad for adjusting the force-bearing area of ​​the workpiece.

[0009] Preferably, the adjustment structure includes telescopic plates slidably disposed on both sides of the pad, a gear is provided at the center inside the pad, and racks are provided on both the front and rear sides of the gear. The racks are slidably connected to the pad, and the ends of the two racks that are far apart from each other are fixed to the two telescopic plates respectively. The gear and the racks mesh with each other. A placement groove is provided at the bottom inside the pad, and a sliding rod is fixed at the upper end of the gear. The sliding rod is slidably connected to the pad.

[0010] Preferred: The clamping structure includes a slide rail located on the rear side of the four-jaw chuck, a lead screw rotatably mounted inside the slide rail, a moving motor mounted on the rotating end of the lead screw, the output end of the moving motor being fixed to the rotating end of the lead screw via a coupling, a support frame slidably mounted inside the slide rail, the support frame being threadedly connected to the lead screw, a downward hydraulic cylinder being provided at the front end of the support frame, a fixed seat being fixed at the lower end of the downward hydraulic cylinder, a rotating disk being rotatably mounted at the lower end of the fixed seat, and a dust suction structure being provided on the side wall of the fixed seat for adsorbing and filtering dust generated during workpiece milling.

[0011] Preferred: The dust collection structure includes a partition set on the side wall of the fixed base, a suction chamber fixed at the lower end of the partition, a filter screen slidably set at the bottom of the suction chamber, a suction fan set above the filter screen, and a suction hood fixed at the bottom of the suction chamber.

[0012] Preferably, the milling mechanism includes a connecting plate disposed on the side wall of the support frame. The connecting plate is L-shaped. A first cylinder is disposed between the connecting plate and the support frame. A sliding plate is slidably mounted on the front end of the connecting plate. A second cylinder is disposed between the sliding plate and the connecting plate. A slider is slidably disposed at the lower end of the sliding plate. A milling cutter is mounted at the bottom end of the slider. A third cylinder is disposed between the slider and the sliding plate.

[0013] Preferably, the upper end of the sliding rod is fixed with an anti-slip pad, which is made of rubber, and the bottom of the rotating disk is made of silicone.

[0014] Preferred: The front end of the filter screen is fixed with a handle.

[0015] Compared with existing technologies, the beneficial effects are as follows:

[0016] The workpiece is initially positioned and clamped by a fixed structure, and then the force-bearing area between the pad and the workpiece is adjusted by an adjustment structure. The larger the volume of the workpiece being processed, the larger the force-bearing area between the pad and the workpiece, so as to reduce the phenomenon of workpiece wobble during processing, thereby improving the processing quality of the workpiece and increasing the efficiency of profile milling. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a spatial perspective view of the contour milling device described in this utility model;

[0019] Figure 2 This is a cross-sectional view of the internal structure of the pad plate of the contour milling device described in this utility model;

[0020] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0021] Figure 4 This is a schematic diagram of the adjustment structure of the contour milling device described in this utility model;

[0022] Figure 5 This is a schematic diagram of the internal structure of the slide rail of the contour milling device described in this utility model;

[0023] Figure 6 This is a schematic diagram of the milling mechanism of the contour milling device described in this utility model.

[0024] The annotations in the attached figures are explained as follows:

[0025] 100. Base plate; 201. Four-jaw chuck; 202. Rotary motor; 203. Copying mold; 204. Workpiece; 205. Pad; 206. Gear; 207. Sliding rod; 208. Rack; 209. Telescopic plate; 210. Slide rail; 211. Lead screw; 212. Support frame; 213. Moving motor; 214. Fixed seat; 215. Rotating disk; 216. Partition; 217. Exhaust chamber; 218. Exhaust fan; 219. Filter screen; 220. Downward hydraulic cylinder; 301. Connecting plate; 302. First cylinder; 303. Second cylinder; 304. Sliding plate; 305. Third cylinder; 306. Slider; 307. Milling cutter. Detailed Implementation

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The present invention will be further described below with reference to the accompanying drawings:

[0028] like Figures 1-6 As shown, a contour milling device includes a base plate 100, a milling mechanism for contour milling of materials, the milling mechanism being located above the base plate 100, and a fixing mechanism for clamping and fixing the materials, the fixing mechanism being located below the base plate 100.

[0029] In this embodiment, the fixing mechanism includes a fixing structure for clamping and fixing the material position and a pressing structure for pressing the material after fixing.

[0030] The fixed structure includes a four-jaw chuck 201 rotatably mounted at the bottom of the base plate 100. A rotary motor 202 is installed at the rotating end of the four-jaw chuck 201. The output end of the rotary motor 202 is fixed to the rotating end of the four-jaw chuck 201 via a coupling. A copying mold 203 is held at the center of the four-jaw chuck 201. A workpiece 204 is provided at the upper end of the copying mold 203. A pad 205 is placed at the upper end of the workpiece 204. An adjustment structure is provided inside the pad 205 for adjusting the force-bearing area of ​​the workpiece 204.

[0031] The adjustment structure includes telescopic plates 209 slidably disposed on both sides of the pad 205. A gear 206 is provided at the center of the pad 205. A rack 208 is provided on both the front and rear sides of the gear 206. The racks 208 are slidably connected to the pad 205. The ends of the two racks 208 that are far apart from each other are fixed to the two telescopic plates 209 respectively. The gear 206 meshes with the racks 208. A placement groove is provided at the bottom of the pad 205. A sliding rod 207 is fixed at the upper end of the gear 206. The sliding rod 207 is slidably connected to the pad 205. An anti-slip pad made of rubber is fixed at the upper end of the sliding rod 207.

[0032] The clamping structure includes a slide rail 210 located on the rear side of the four-jaw chuck 201. A lead screw 211 is rotatably mounted inside the slide rail 210. A moving motor 213 is mounted on the rotating end of the lead screw 211. The output end of the moving motor 213 is fixed to the rotating end of the lead screw 211 via a coupling. A support frame 212 is slidably mounted inside the slide rail 210. The support frame 212 is threadedly connected to the lead screw 211. A downward hydraulic cylinder 220 is located at the front end of the support frame 212. A fixed seat 214 is fixed at the lower end of the downward hydraulic cylinder 220. A rotating disk 215 is rotatably mounted at the lower end of the fixed seat 214. The bottom end of the rotating disk 215 is made of silicone. A dust-collecting structure is provided on the side wall of the fixed seat 214 for adsorbing and filtering the dust generated during the milling of the workpiece 204.

[0033] The dust collection structure includes a partition 216 set on the side wall of the fixed base 214. A suction chamber 217 is fixed at the lower end of the partition 216. A filter screen 219 is slidably set at the bottom of the suction chamber 217. A handle is fixed at the front end of the filter screen 219. An exhaust fan 218 is set above the filter screen 219. An exhaust hood is fixed at the bottom of the suction chamber 217. The workpiece 204 is initially positioned and clamped by the fixing structure. Then, the force-bearing area between the pad 205 and the workpiece 204 is adjusted by the adjustment structure. The larger the volume of the workpiece 204 being processed, the larger the force-bearing area between the pad 205 and the workpiece 204, so as to reduce the phenomenon of workpiece 204 wobble during processing, thereby improving the processing quality of workpiece 204 and improving the efficiency of profile milling.

[0034] In this embodiment: the milling mechanism includes a connecting plate 301 disposed on the side wall of the support frame 212. The connecting plate 301 is L-shaped. A first cylinder 302 is disposed between the connecting plate 301 and the support frame 212. A sliding plate 304 is slidably mounted on the front end of the connecting plate 301. A second cylinder 303 is disposed between the sliding plate 304 and the connecting plate 301. A slider 306 is slidably disposed at the lower end of the sliding plate 304. A milling cutter 307 is mounted at the bottom end of the slider 306. A third cylinder 305 is disposed between the slider 306 and the sliding plate 304.

[0035] Working principle: First, place the matching copying mold 203 at the center of the four-jaw chuck 201 to clamp and fix the copying mold 203. Then, place the workpiece 204 on top of the copying mold 203, ensuring that the bottom of the workpiece 204 completely covers the copying mold 203. Next, place the pad 205 at the center of the workpiece 204. Pull the sliding rod 207 upward to move the gear 206 upward, causing the gear 206 to mesh with the racks 208 on the front and rear sides. Rotating the gear 206 drives the two racks 208 to move away from each other, thus moving the two extension plates... The expansion plates 209 move away from each other to increase the coverage area of ​​the pad 205 on the workpiece 204, thereby increasing the force-bearing area between the workpiece 204 and the pad 205. The extension amount of the two expansion plates 209 is adjusted according to the size of the workpiece 204, which in turn adjusts the force-bearing area between the workpiece 204 and the pad 205. The larger the volume of the workpiece 204, the larger the force-bearing area between the pad 205 and the workpiece 204, and vice versa. This reduces the wobble of the workpiece 204 during processing, thereby improving the processing quality of the workpiece 204 and increasing the efficiency of profile milling.

[0036] After adjustment, press down on the sliding rod 207 to move the gear 206 into the placement groove at the bottom of the pad 205, so that the top of the sliding rod 207 is level with the top of the pad 205, disengaging the gear 206 from the rack 208 and preventing contact with the gear 206 from causing the rack 208 to move. Then, drive the downward hydraulic cylinder 220 to move down, causing the rotating disk 215 at the lower end of the fixed seat 214 to move down and fit against the upper end of the pad 205. The downward pressure applied by the downward hydraulic cylinder 220 to the rotating disk 215 is transferred to the pad 205, making the pad 205 firmly press the workpiece 204 downward. Then, drive the rotary motor 202 to drive the four-jaw chuck 201 to rotate, causing the workpiece 204 in the clamp to rotate. Then, use the cooperation between the first cylinder 302, the second cylinder 303, and the third cylinder 305 to drive the milling cutter 307 to move freely, so that the milling cutter 307 can mill the workpiece 204.

[0037] During processing, the exhaust fan 218 inside the exhaust chamber 217 is activated to create a negative pressure inside the exhaust chamber 217, thereby drawing the dust generated during milling into the exhaust chamber 217 through the exhaust hood. The dust is then filtered by the filter screen 219 inside the exhaust chamber 217 and finally discharged outward to reduce the impact of dust on workers and the environment.

[0038] 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 illustrative of the 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.

Claims

1. A contour milling device, comprising a base plate (100), wherein a milling mechanism is disposed above the base plate (100), characterized in that: It also includes a fixing mechanism for pressing and fixing the material, the fixing mechanism being located below the base plate (100); The fixing mechanism includes a fixing structure for clamping and fixing the material position and a clamping structure for pressing the material after fixing. The fixed structure includes a four-jaw chuck (201) rotatably mounted on the bottom end of the base plate (100). A rotary motor (202) is installed on the rotating end of the four-jaw chuck (201). The output end of the rotary motor (202) is fixed to the rotating end of the four-jaw chuck (201) through a coupling. A copying mold (203) is held at the center of the four-jaw chuck (201). A workpiece (204) is provided on the upper end of the copying mold (203). A pad (205) is placed on the upper end of the workpiece (204). An adjustment structure is provided inside the pad (205) for adjusting the force-bearing area of ​​the workpiece (204). The adjustment structure includes telescopic plates (209) slidably disposed on both sides of the pad (205). A gear (206) is provided at the center of the pad (205). A rack (208) is provided on both the front and rear sides of the gear (206). The rack (208) is slidably connected to the pad (205). The ends of the two racks (208) that are far apart from each other are respectively fixed to the two telescopic plates (209). The gear (206) meshes with the rack (208). A placement groove is provided at the bottom of the pad (205). A sliding rod (207) is fixed at the upper end of the gear (206). The sliding rod (207) is slidably connected to the pad (205).

2. The contour milling device according to claim 1, characterized in that: The clamping structure includes a slide rail (210) located on the rear side of the four-jaw chuck (201). A lead screw (211) is rotatably mounted inside the slide rail (210). A moving motor (213) is mounted on the rotating end of the lead screw (211). The output end of the moving motor (213) is fixed to the rotating end of the lead screw (211) via a coupling. A support frame (212) is slidably mounted inside the slide rail (210). The support frame (212) is threadedly connected to the lead screw (211). A downward hydraulic cylinder (220) is provided at the front end of the support frame (212). A fixed seat (214) is fixed at the lower end of the downward hydraulic cylinder (220). A rotating disk (215) is rotatably mounted at the lower end of the fixed seat (214). A dust-collecting structure is provided on the side wall of the fixed seat (214) for adsorbing and filtering the dust generated during the milling of the workpiece (204).

3. The contour milling device according to claim 2, characterized in that: The dust collection structure includes a partition (216) disposed on the side wall of the fixed base (214), a suction chamber (217) fixed at the lower end of the partition (216), a filter screen (219) slidably disposed at the bottom of the suction chamber (217), an exhaust fan (218) disposed above the filter screen (219), and an exhaust hood fixed at the bottom of the suction chamber (217).

4. The contour milling device according to claim 3, characterized in that: The milling mechanism includes a connecting plate (301) disposed on the side wall of the support frame (212). The connecting plate (301) is L-shaped. A first cylinder (302) is provided between the connecting plate (301) and the support frame (212). A sliding plate (304) is slidably installed at the front end of the connecting plate (301). A second cylinder (303) is provided between the sliding plate (304) and the connecting plate (301). A slider (306) is slidably disposed at the lower end of the sliding plate (304). A milling cutter (307) is installed at the bottom end of the slider (306). A third cylinder (305) is provided between the slider (306) and the sliding plate (304).

5. The contour milling device according to claim 4, characterized in that: The upper end of the sliding rod (207) is fixed with an anti-slip pad, which is made of rubber, and the bottom end of the rotating disk (215) is made of silicone.

6. The contour milling device according to claim 5, characterized in that: A handle is fixed to the front end of the filter screen (219).

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