A gear machining simulation device

Abstract

The application discloses a gear machining simulation device based on a generating method, which comprises a bottom plate, a driving shaft vertically arranged on one side of the bottom plate, a driving gear arranged on the bottom of the driving shaft, a cutting tray arranged on the top of the driving shaft, and a rack cutter arranged on the other side of the bottom plate; the rack cutter is equipped with a three-axis moving base, the three-axis moving base is provided with a driving rack engaged with the driving gear, and the driving rack drives the horizontal movement of the rack cutter; the rack cutter is provided with a tooth on the side for cutting, the three-axis moving base is further provided with a lifting sliding table, and the lifting sliding table cuts a tooth shape on the side surface of a gear blank; the lifting sliding table is provided with a feeding mechanism, the rack cutter is installed on the feeding mechanism, and the feeding mechanism is used for driving the rack cutter to approach or move away from the gear blank. Students can intuitively understand the gear machining process based on the generating method, and can also observe the gear cutting process containing the cutter feeding movement, which is the same as the actual gear machining process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of teaching aids, in particular to a gear processing simulation device based on the generation method. BACKGROUND

[0002] In the teaching activities of mechanical design, mechanical design foundation and other courses, a gear processing simulation experiment based on the generation method is usually carried out. The currently widely used experimental device is a gear generation instrument, such as a new type of gear generation instrument disclosed in CN107507508B, which comprises a chassis, a gear base disc cooperating with a rack is arranged above the chassis, a drawing tray is arranged above the gear base disc, and the like, and the machining trajectory of the cutting tool is drawn by a pen. However, students have certain difficulties in understanding the actual gear processing principle through such an experiment, and the experiment cannot simulate the tool feeding process existing in actual processing. SUMMARY

[0003] The present application aims to solve the technical problems existing in the prior art, and particularly innovatively proposes another gear processing simulation device based on the generation method, so that students can intuitively understand the gear processing process based on the generation method, and can also observe the gear cutting process containing tool feeding motion which is the same as the actual gear processing process.

[0004] In order to achieve the above-mentioned purpose, the present application provides a gear processing simulation device based on the generation method, which comprises a bottom plate, a driving shaft is vertically installed on one side of the bottom plate, a driving gear is arranged at the bottom of the driving shaft, and a cutting tray is arranged at the top, the cutting tray is used for placing a gear blank, and a rack cutter is arranged on the other side of the bottom plate for cutting out a tooth shape on the side surface of the gear blank;

[0005] The rack cutter is equipped with a three-axis moving base, a driving rack is arranged on the three-axis moving base and engaged with the driving gear, and the rack cutter is driven to move horizontally by the driving rack; one side of the rack cutter for cutting is provided with a tooth, a lifting slide is further arranged on the three-axis moving base for driving the rack cutter to move up and down, and a tooth shape is cut out on the side surface of the gear blank by the lifting slide; a feeding mechanism is arranged on the lifting slide, the rack cutter is installed on the feeding mechanism, and the feeding mechanism is used for driving the rack cutter to approach or move away from the gear blank.

[0006] In the above-mentioned scheme, the three-axis moving base comprises a horizontal moving platform, a horizontal moving guide mechanism is arranged at the bottom of the horizontal moving platform, a pair of vertical guide columns are arranged on the horizontal moving platform, a sliding sleeve is arranged on the lifting slide and sheathed on the vertical guide columns, and an elastic reset member is arranged between the lifting slide and the horizontal moving platform. The horizontal moving platform can be guided by the horizontal moving guide mechanism to ensure the stability of the moving path. The elastic reset member can drive the lifting slide to automatically reset and automatically realize the up-down reciprocating action, so that cutting is realized without manual resetting.

[0007] In the scheme, the transverse guide mechanism comprises a pair of parallel transverse guide rods, both ends of the transverse guide rods are installed on the bottom plate through fixing seats, and a transverse sliding block is slidably connected to the transverse guide rod, and the bottom side of the transverse platform is fixedly connected with the transverse sliding block, and the structure is simple.

[0008] In the scheme, the elastic reset member is a compression spring.

[0009] In the scheme, the feeding mechanism comprises a feeding screw rod and a feeding nut threadedly connected to the feeding screw rod, and the bottom side of the rack cutter is fixedly installed on the feeding nut.

[0010] Both sides of the feeding screw rod are provided with feeding guide rods in parallel, feeding sliding blocks are slidably connected to the feeding guide rods, the feeding sliding blocks are fixedly connected with the bottom side of the rack cutter, and both ends of the feeding screw rod and the feeding guide rod are fixed on the lifting sliding table through fixing seats. The structure is simple, the screw nut mechanism is adopted, the progress of adjusting the feeding distance is higher, and the rack cutter can be stably driven to be close to the gear blank through the feeding mechanism and the feeding guide mechanism, so that the required tooth shape is cut.

[0011] In the scheme, the gear blank is a clay blank, the cutting strength is small, the cost is low, the clay gear blank can be reshaped and repeatedly used.

[0012] In the scheme, the cutting tray is a gear that is conjugated with the rack cutter, so that the cutting chips of the clay gear blank are discharged and the rack cutter is over the cutting tray.

[0013] In summary, the beneficial effects of the present application are that the actual gear machining process can be intuitively and realistically simulated, and the experimental teaching effect is improved. The whole simulation process is completed manually, the corresponding detail display and the fast cutting simulation and slow cutting simulation according to the understanding degree of students can be realized, and the design is reasonable. At the same time, only one hand is needed to rotate the driving gear during cutting, and the other hand is needed to press the rack cutter, so that the operation is simple. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 is a perspective view of the present application.

[0015] Fig. 2 is a perspective view of the present application. DETAILED DESCRIPTION

[0016] The present application will be further described below through examples and in combination with the drawings:

[0017] As Figs. 1-2As shown, a kind of gear machining simulation device of generative method includes base plate 1, and one side of base plate 1 is vertically installed with driving shaft 3. Driving shaft 3 is equipped with driving gear 2 near bottom, and cutting tray 4 is equipped near top, and cutting tray 4 is used to place gear blank 5. Gear blank 5 is mud blank, and cutting is used with small strength, and cost is low, and can be reshaped and repeatedly used. The other side of base plate 1 is equipped with rack cutter 6 for cutting out tooth shape on the side of gear blank 5. Rack cutter 6 is made of metal, and the side for cutting of rack cutter 6 is equipped with tooth. Cutting tray 4 is gear with rack cutter 6. In order to discharge cutting of mud gear blank 5 and rack cutter 6 over cutting tray 6. At the same time, the shape of mud blank can be kept, the edge of tooth shape can also be well supported, and cutting can be carried out after rack cutter 6 is engaged with cutting tray 4, and cutting tray 4 can be used as the reference of feed distance of rack cutter 6.

[0018] Rack cutter 6 is equipped with three-axis moving base, and rack cutter 6 is moved in X-axis, Z-axis and Y-axis direction by three-axis moving base, so as to guarantee the cutting position accuracy of rack cutter 6. Three-axis moving base is equipped with driving rack 12 engaged with driving gear 1, and rack cutter 6 is moved horizontally by driving rack 12. The length of rack cutter 6 and driving rack 12 is greater than or equal to the outer diameter circumference of driving gear 2.

[0019] Three-axis moving base is also equipped with lifting slide 6a for driving rack cutter 6 to move up and down, and tooth shape is cut on the side of gear blank 5 by lifting slide 6a. And the height of rack cutter 6 when being at the highest position is higher than gear blank 5, and the height of rack cutter 6 when being at the lowest position is lower than cutting tray 4. Lifting slide 6a is equipped with feed mechanism, rack cutter 6 is installed on feed mechanism, and feed mechanism is used to drive rack cutter 6 to approach or move away from gear blank 5.

[0020] Three-axis moving base includes horizontal moving platform 11, and horizontal moving platform 11 is equipped with horizontal moving guide mechanism at bottom, horizontal moving guide mechanism can guide horizontal moving platform, and guarantee the stable path of movement. Specifically, horizontal moving guide mechanism includes a pair of parallel horizontal moving guide rods 15, both ends of horizontal moving guide rod 15 are installed on base plate 1 through fixing seat, horizontal moving guide rod 15 is slidably connected with horizontal moving slide 16, and bottom side of horizontal moving platform 11 is fixedly connected with horizontal moving slide 16, and the structure is simple.

[0021] Horizontal moving platform 11 is equipped with a pair of vertical guide columns 9, lifting slide 6a is equipped with sliding sleeve 6b sleeved on vertical guide column 9, and lifting slide 6a is equipped with sliding sleeve 6b, and sliding sleeve 6b is lifting linear bearing. Lifting slide 6a and horizontal moving platform 11 are equipped with elastic reset member 10. Wherein, elastic reset member 10 is compression spring. The setting of elastic reset member 10 can drive lifting slide 6a to automatically reset, and automatically realize up and down reciprocating action, so as to realize cutting, and manual reset is not needed.

[0022] The feeding mechanism includes a feed screw 8 and a feed nut 14 threaded onto the feed screw 8. The bottom side of the rack cutter 6 is fixedly mounted on the feed nut 14. Feed guide rods 7 are arranged parallel to each other on both sides of the feed screw 8, and feed sliders 13 are slidably connected to each feed guide rod 7. The feed sliders 13 are feed linear bearings. The feed sliders 13 are all fixedly connected to the bottom side of the rack cutter 6. Both ends of the feed screw 8 and the feed guide rods 7 are fixed to the lifting slide 6a by fixed seats. The structure is simple, and the use of a screw-nut mechanism allows for greater adjustment of the feed distance. The feed mechanism and feed guide mechanism can stably drive the rack cutter 6 closer to the gear blank 5, thereby cutting the required tooth profile. The extension direction of the feed screw 8 is perpendicular to the extension direction of the transverse guide rod 15.

[0023] In use, press the disc-shaped gear blank 5 firmly onto the cutting tray 4 to prevent displacement due to centrifugal force during rotation. Manually and slowly rotate the drive gear 2 while pressing down the rack cutter 6. After the rack cutter 6 springs up, continue pressing and repeat this process. When the rack cutter 6 moves to its tail end and contacts the gear blank 5, one revolution of the clay gear blank 5 has been completed. Then, manually push the drive rack 12 to align the front end of the rack cutter 6 with the gear blank, and rotate the feed screw 8 to bring the rack cutter 6 closer to the clay gear blank 5, allowing for deeper tooth cutting. Continue pressing down the rack cutter 6 and repeat these operations until the gear teeth are cut.

Claims

1. A generating gear machining simulation device, characterized in that: Includes a base plate (1), on one side of which a drive shaft (3) is vertically mounted, and a drive gear (2) is provided on the drive shaft (3) near the bottom and a cutting tray (4) is provided near the top. The cutting tray (4) is used to place a gear blank (5), and on the other side of the base plate (1) a rack cutter (6) is provided for cutting tooth shape on the side of the gear blank (5). The rack cutter (6) is equipped with a three-axis moving base. The three-axis moving base is provided with a driving rack (12) that meshes with the driving gear (2). The rack cutter (6) is driven to move horizontally by the driving rack (12). The rack cutter (6) has teeth on one side for cutting. The three-axis moving base is also provided with a lifting slide (6a) for driving the rack cutter (6) to move up and down. The lifting slide (6a) cuts teeth on the side of the gear blank (5). The lifting slide (6a) is provided with a feeding mechanism. The rack cutter (6) is mounted on the feeding mechanism. The feeding mechanism is used to drive the rack cutter (6) to move closer to or away from the gear blank (5). The three-axis moving base includes a transverse platform (11), the bottom of which is provided with a transverse guide mechanism, a pair of vertical guide columns (9) on the transverse platform (11), a sliding sleeve (6b) on which is sleeved on the vertical guide columns (9) on the lifting slide (6a), and an elastic reset member (10) between the lifting slide (6a) and the transverse platform (11). The gear blank (5) is a clay blank; When in use, press the gear blank (5) into a disc shape and place it firmly on the cutting tray (4). Manually and slowly rotate the drive gear (2) while pressing the rack cutter (6). After the rack cutter (6) springs up, continue pressing and repeat the process.

2. The generating gear machining simulation device according to claim 1, characterized in that: The transverse guide mechanism includes a pair of parallel transverse guide rods (15). Both ends of the transverse guide rods (15) are mounted on the base plate (1) through fixed seats. A transverse slider (16) is slidably connected to each transverse guide rod (15). The bottom side of the transverse platform (11) is fixedly connected to the transverse slider (16).

3. The generating gear machining simulation device according to claim 1, characterized in that: The elastic reset element (10) is a compression spring.

4. The generating gear machining simulation device according to claim 1, characterized in that: The feeding mechanism includes a feed screw (8) and a feed nut (14) threaded onto the feed screw (8), and the bottom side of the rack cutter (6) is fixedly mounted on the feed nut (14); Both sides of the feed screw (8) are provided with feed guide rods (7) in parallel. Each feed guide rod (7) is slidably connected with a feed slider (13). Each feed slider (13) is fixedly connected to the bottom side of the rack cutter (6). Both ends of the feed screw (8) and the feed guide rods (7) are fixed on the lifting slide (6a) by a fixed seat.

5. The generating gear machining simulation device according to claim 1, characterized in that: The cutting tray (4) is a gear conjugate with the rack cutter (6).

Images