Gearbox milling tooling

Abstract

The utility model discloses a gear box milling frock, the utility model relates to gear box production technical field. This gear box milling frock includes the bottom plate, and the top of bottom plate is provided with the milling mechanism: limiting component, sets up in the top of bottom plate and is used for limiting the position of gear box, drive assembly, including setting transmission air cylinder in limiting component one side, the movable end fixed mounting of transmission air cylinder has the limiting block, one side fixed mounting of limiting block has cross -slide platform, cross -slide platform secondary sliding block one side fixed mounting has drive motor, in the milling process, vacuum pump synchronous operation, one aspect through the hose and send the airflow to the nozzle, and the airflow is guided to the milling area through the nozzle and is blown to, and the scattering effect is formed to the small chippings, on the other hand, the vacuum pump draws the air in filter box and forms the negative pressure, and the small chippings enter filter box through the limiting pipe, the hose and are intercepted by filter plate.

Description

Technical Field

[0001] This utility model relates to the field of gearbox manufacturing technology, specifically to a gearbox milling fixture. Background Technology

[0002] Milling is a machining method in which a milling cutter is used to cut a workpiece by rotating it to obtain the desired shape, size and surface quality. It is widely used in fields such as machinery manufacturing and mold making.

[0003] The existing utility model patent with publication number CN216029369U discloses a gearbox milling fixture, which solves the problem that existing gearbox milling fixtures, with their simple structure, cannot meet the milling operations of various gearboxes, thus limiting their use. The fixture includes a housing, with a first sliding groove installed on the top inner wall of the housing. A slider is slidably installed in the first sliding groove, and a first lead screw is threaded onto the bottom of the slider. One end of the first lead screw is connected to the inner wall of the housing, and a first forward / reverse motor is installed at the end of the first lead screw that passes through the housing. A milling component is installed at the bottom of the slider. By setting up components such as a first connecting rod, a second sliding groove, a second lead screw, and a second forward / reverse motor, the angle of the operating table can be adjusted, enabling multi-angle milling of the gearbox. The overall design is reasonable and can meet the milling operations required for different gearboxes, thus possessing certain practicality.

[0004] The aforementioned milling device clamping assembly is a symmetrical "second electric telescopic rod + clamping plate" structure, which can only clamp gearboxes with regular rectangular or symmetrical shapes. For gearboxes with asymmetrical structures (such as those with a protrusion or irregular contour on one side), the clamping plate cannot fit the workpiece surface, which can easily lead to loose clamping or workpiece deformation. At the same time, during the milling process, chips will remain inside the gearbox, making subsequent cleaning of the chips very inconvenient. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a gearbox milling fixture that solves the problems of chips remaining inside the gearbox and poor fixation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A gearbox milling fixture includes a base plate, and a milling mechanism is disposed above the base plate.

[0007] A limiting component is installed above the base plate to limit the position of the gearbox;

[0008] The drive assembly includes a transmission cylinder disposed on one side of the limiting assembly. A limiting block is fixedly installed on the movable end of the transmission cylinder. A cross slide is fixedly installed on one side of the limiting block. A drive motor is fixedly installed on one side of the secondary slider of the cross slide. A limiting frame is fixedly installed on one side of the secondary slider of the cross slide. A nozzle is fixedly installed at the top of the limiting frame, and a limiting tube is fixedly installed at the bottom. A flexible tube is fixedly installed at one end of the nozzle and the limiting tube. A filter box is fixedly installed at the end of the flexible tube connected to the limiting tube. A filter plate is fixedly installed inside the filter box. A vacuum pump is connected to one side of the filter box.

[0009] Preferably, the limiting component includes support columns fixedly installed on both sides of the base plate, a reducer fixedly installed above the support columns, a stepper motor fixedly installed on one side of the reducer, a movable frame movably installed at the top of the support columns, limiting cylinders installed at the four corners of the movable frame, and a parting clamp fixedly installed at the movable end of the limiting cylinder.

[0010] Preferably, the support columns are mirror-symmetrically installed on both sides of the base plate, one side of the support column is provided with a protruding structure, the reducer is fixed above the protruding structure of the support column, and the movable frame and the support column are rotatably connected.

[0011] Preferably, the columnar structures on both sides of the movable frame are fixedly connected to the power output shafts of the reducers on both sides, the limiting cylinders are installed in an "X" shape at the four corners of the movable frame, and the moving end of the limiting cylinder points to the center of the rectangular frame structure of the movable frame. The movable frame is provided with sliding groove structures that fit into the limiting blocks on both sides.

[0012] Preferably, the limiting block and the movable frame are slidably connected, the transmission cylinder is fixedly installed at the top of the sliding groove structure on both sides of the movable frame, and the movable end of the transmission cylinder is located inside the sliding groove structure on both sides of the movable frame, and the end of the drive motor shaft is provided with a milling cutter chuck.

[0013] Preferably, the nozzle and the limiting tube point to the clamp at the end of the drive motor shaft, the hose is restricted by a plate-like structure set above the cross slide, and the hose at one end of the nozzle is fixedly connected to the exhaust end of the vacuum pump.

[0014] Beneficial effects

[0015] This utility model provides a gearbox milling fixture. Compared with the prior art, it has the following advantages:

[0016] (1) The gearbox milling fixture, through the setting of the vacuum pump, operates synchronously during the milling process. On the one hand, the airflow is delivered to the nozzle through the hose, and the airflow is guided by the nozzle to blow towards the milling area, which has a blowing effect on the fine debris. On the other hand, the vacuum pump extracts the air in the filter box to form a negative pressure, so that the fine debris enters the filter box through the limiting tube and the hose and is intercepted by the filter plate. At the same time, for larger debris, since the movable frame can be adjusted in angle by the stepper motor and the reducer, the movable frame rotates to a vertical position before the milling process and maintains a vertical position during the milling process. The large debris will fall naturally under the action of gravity and leave the inside of the gearbox, avoiding the residue due to its large size and difficulty in being carried away by the airflow.

[0017] (2) The gearbox milling fixture, through the setting of limit cylinders, the limit cylinders installed in an "X" shape at the four corners of the movable frame drive the parting clamp to move. The parting structure of the parting clamp can fit the outer surface of the gearbox and adapt to gearboxes with different contours such as asymmetry. The parting clamps in the four directions work together to apply pressure and stably restrict it to the center. In addition, the stepper motor drives the movable frame to rotate through the reducer to adjust the angle. The rotational connection between the movable frame and the support column ensures the stability during angle adjustment and ensures that the gearbox will not loosen or shift during the milling process. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the installation structure of the parting clamp of this utility model;

[0020] Figure 3 This is a schematic diagram of the installation structure of the cross slide table of this utility model;

[0021] Figure 4 This is a schematic diagram of the hose installation structure of this utility model;

[0022] In the diagram: 1. Base plate; 2. Milling mechanism; 21. Limiting component; 211. Support column; 212. Reducer; 213. Stepper motor; 214. Movable frame; 215. Limiting cylinder; 216. Parting clamp; 22. Drive component; 221. Transmission cylinder; 222. Limiting block; 223. Cross slide; 224. Drive motor; 225. Limiting frame; 226. Nozzle; 227. Limiting tube; 228. Hose; 229. Filter box; 2210. Filter plate; 2211. Vacuum pump. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 This utility model provides a technical solution: a gearbox milling fixture, including a base plate 1, and a milling mechanism 2 arranged above the base plate 1.

[0025] A limiting component 21, disposed above the base plate 1, is used to limit the position of the gearbox. The limiting component 21 includes support columns 211 fixedly installed on both sides of the base plate 1. A reducer 212 is fixedly installed above the support columns 211. A stepper motor 213 is fixedly installed on one side of the reducer 212. A movable frame 214 is movably installed at the top of the support columns 211. Limit cylinders 215 are installed at the four corners of the movable frame 214. A parting clamp 216 is fixedly installed at the movable end of the limit cylinder 215. The support columns 211 are mirror-symmetrically installed on the base plate 1. On both sides, a protruding structure is provided on one side of the support column 211, and the reducer 212 is fixed above the protruding structure of the support column 211. The movable frame 214 is rotatably connected to the support column 211. The columnar structures on both sides of the movable frame 214 are fixedly connected to the power output shafts of the reducers 212 on both sides. The limit cylinders 215 are installed in an "X" shape at the four corners of the movable frame 214, and the movable end of the limit cylinder 215 points to the center of the rectangular frame structure of the movable frame 214. The movable frame 214 has a sliding groove structure on both sides that fits into the limit block 222.

[0026] Specifically, in the default state, the rectangular frame structure of the movable frame 214 is in a horizontal state. After the gearbox is placed in the center of the rectangular frame structure of the movable frame 214, the parting clamp 216 is moved by the limiting cylinder 215, so that the parting clamp 216 contacts the outer side of the gearbox. The parting structure of the parting clamp 216 makes the working surface of the parting clamp 216 fit the surface of the gearbox. Since the limiting cylinder 215 is set in an "X" shape, when all four parting clamps 216 are in contact with the gearbox and maintain a certain pressure, the gearbox will be restricted to the center of the rectangular frame structure of the movable frame 214 to prevent the gearbox from moving during the milling process. The speed of the stepper motor 213 is reduced by the reducer 212 and the torque is increased so as to drive the movable frame 214 and the drive assembly 22 to rotate 90 degrees as a whole, so that the rectangular frame structure of the movable frame 214 is in a vertical state, preparing for the milling process.

[0027] The drive assembly 22 includes a transmission cylinder 221 disposed on one side of the limiting assembly 21. A limiting block 222 is fixedly installed on the movable end of the transmission cylinder 221. A cross slide 223 is fixedly installed on one side of the limiting block 222. A drive motor 224 is fixedly installed on one side of the secondary slider of the cross slide 223. A limiting frame 225 is fixedly installed on one side of the secondary slider of the cross slide 223. A nozzle 226 is fixedly installed at the top of the limiting frame 225, and a limiting tube 227 is fixedly installed at the bottom. A hose 228 is fixedly installed at one end of the nozzle 226 and the limiting tube 227. A filter box 229 is fixedly installed at the end of the hose 228 connected to the limiting tube 227. A filter plate 2210 is fixedly installed inside. A vacuum pump 2211 is connected to one side of the filter box 229. A limiting block 222 and a movable frame 214 are slidably connected. A transmission cylinder 221 is fixedly installed at the top of the sliding groove structure on both sides of the movable frame 214, and the movable end of the transmission cylinder 221 is located inside the sliding groove structure on both sides of the movable frame 214. A milling cutter chuck is provided at the end of the shaft of the drive motor 224. The nozzle 226 and the limiting tube 227 point to the chuck at the end of the shaft of the drive motor 224. The hose 228 restricts the path through the plate-like structure provided above the cross slide table 223. The hose 228 at one end of the nozzle 226 is fixedly connected to the exhaust end of the vacuum pump 2211.

[0028] Specifically, the transmission cylinder 221 can drive the limit block 222 to move to adjust the distance between the cross slide 223 and the limit component 21, so as to control the milling depth. The cross slide 223 can drive the drive motor 224 to move on the longitudinal axis and the horizontal axis to adjust the milling position. The chuck at the bottom of the drive motor 224 can facilitate the installation of the milling tool. The drive motor 224 drives the tool to rotate to mill the gearbox. During the milling process, the vacuum pump 2211 operates synchronously. Airflow can be delivered to nozzle 226 through hose 228. After being guided by nozzle 226, the airflow will be blown toward the milling area. At the same time, when vacuum pump 2211 is started, the air inside filter box 229 is extracted. External air will flow to filter box 229 through limit tube 227 and hose 228. Thus, the airflow will carry the fine debris generated during milling into filter box 229. Filter plate 2210 inside filter box 229 will intercept the fine debris and prevent it from entering the vacuum pump 2211.

[0029] Specifically, the reducer 212 is model XLD2-71-0.37KW, the stepper motor 213 is model 110SY-M0542030D5, the limit cylinder 215 and the transmission cylinder 221 are model SDA40, the drive motor 224 is model MHMF042L1U2M, and the vacuum pump 2211 is model RB-31DH-2. Furthermore, any content not described in detail in this specification is prior art known to those skilled in the art.

[0030] During operation, a milling cutter is first installed in the milling cutter chuck at the end of the drive motor 224's shaft. Initially, the rectangular frame structure of the movable frame 214 is horizontal. After the gearbox is placed at the center of the rectangular frame structure of the movable frame 214, the limiting cylinder 215 moves the parting clamp 216, causing its working surface to contact the gearbox surface. The four parting clamps 216, installed in an "X" shape, collectively restrict the gearbox at the center of the movable frame 214. Subsequently, the stepper motor 213 operates, its power transmitted to the movable frame 214 via the reducer 212, causing the movable frame 214 and drive assembly 22 to rotate as a whole (e.g., to a vertical position), preparing for milling. Then, the transmission cylinder 221 drives the limiting block 222 along the sliding surfaces on both sides of the movable frame 214. The groove structure moves, adjusting the distance between the cross slide 223 and the limiting component 21 to control the milling depth. At the same time, the cross slide 223 drives the drive motor 224 to move on the longitudinal axis and the horizontal axis to adjust the milling position. Then, the drive motor 224 starts, driving the milling cutter to rotate and mill the gearbox. During the milling process, the vacuum pump 2211 operates synchronously. On the one hand, it delivers airflow to the nozzle 226 through the hose 228. The airflow is guided by the nozzle 226 to blow towards the milling area. On the other hand, the vacuum pump 2211 extracts air from the filter box 229, allowing external air to carry milling debris through the limiting tube 227 and the hose 228 into the filter box 229. The filter plate 2210 in the filter box 229 intercepts the debris, preventing the debris from entering the vacuum pump 2211.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] 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 gearbox milling fixture, comprising a base plate (1), characterized in that: A milling mechanism (2) is provided above the base plate (1): A limiting component (21) is provided above the base plate (1) to limit the position of the gearbox; The drive assembly (22) includes a transmission cylinder (221) disposed on one side of the limiting assembly (21). A limiting block (222) is fixedly installed on the movable end of the transmission cylinder (221). A cross slide (223) is fixedly installed on one side of the limiting block (222). A drive motor (224) is fixedly installed on one side of the secondary slider of the cross slide (223). A limiting frame (225) is fixedly installed on one side of the secondary slider of the cross slide (223). A nozzle (226) is fixedly installed at the top of the frame (225), and a limiting tube (227) is fixedly installed at the bottom. A hose (228) is fixedly installed at one end of the nozzle (226) and the limiting tube (227). A filter box (229) is fixedly installed at the end of the hose (228) connected to the limiting tube (227). A filter plate (2210) is fixedly installed inside the filter box (229). A vacuum pump (2211) is connected to one side of the filter box (229).

2. The gearbox milling fixture according to claim 1, characterized in that: The limiting component (21) includes support columns (211) fixedly installed on both sides of the base plate (1). A reducer (212) is fixedly installed above the support column (211). A stepper motor (213) is fixedly installed on one side of the reducer (212). A movable frame (214) is movably installed at the top of the support column (211). Limiting cylinders (215) are installed at the four corners of the movable frame (214). A parting clamp (216) is fixedly installed at the movable end of the limiting cylinder (215).

3. A gearbox milling fixture according to claim 2, characterized in that: The support column (211) is mirror-symmetrically installed on both sides of the base plate (1). A protruding structure is provided on one side of the support column (211). The reducer (212) is fixed above the protruding structure of the support column (211). The movable frame (214) and the support column (211) are rotatably connected.

4. A gearbox milling fixture according to claim 2, characterized in that: The columnar structures on both sides of the movable frame (214) are fixedly connected to the power output shafts of the reducers (212) on both sides. The limiting cylinders (215) are installed in an "X" shape at the four corners of the movable frame (214), and the movable end of the limiting cylinder (215) points to the center of the rectangular frame structure of the movable frame (214). The movable frame (214) has a sliding groove structure on both sides that fits into the limiting block (222).

5. A gearbox milling fixture according to claim 2, characterized in that: The limiting block (222) and the movable frame (214) are connected in a sliding manner. The transmission cylinder (221) is fixedly installed on the top of the sliding groove structure on both sides of the movable frame (214), and the movable end of the transmission cylinder (221) is located inside the sliding groove structure on both sides of the movable frame (214). The end of the shaft of the drive motor (224) is provided with a milling cutter chuck.

6. A gearbox milling fixture according to claim 1, characterized in that: The nozzle (226) and the limiting tube (227) point to the clamp at the end of the drive motor (224) shaft. The hose (228) is restricted by the plate structure set above the cross slide (223). The hose (228) at one end of the nozzle (226) is fixedly connected to the exhaust end of the vacuum pump (2211).

Images