A chamfering device for machining a gearbox housing and a method of using the same

Abstract

The application belongs to the technical field of speed reducer box bodies, and discloses a chamfering device for machining a speed reducer box body, which comprises a workbench; the application also provides a chamfering method for machining a speed reducer box body, wherein the inclined plate top plate is driven to move upwards by starting the electric cylinder, the limiting plate one is slid upwards in the plate groove, and the inclined slide plates on the two sides are pushed to translate in opposite directions; the limiting plate one on the two sides is slid upwards in the plate groove by starting the electric cylinder to drive the inclined plate top plate in the reverse plate to move upwards, the inclined slide plates on the two sides are pushed to translate in opposite directions, the movement of the inclined slide plates also drives the limiting plate two to slide in the sliding groove, thereby pulling the spring, and the clamping plate is driven to move in the opposite direction, the spacing is increased, the box body is placed on the reverse plate, the electric cylinder is retracted to move downwards, the spacing is reduced, the box body is tightly clamped by the rubber protrusions, the operation of fixing and limiting is convenient, and the structure is simple.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of speed reducer box body, and particularly relates to a chamfering device for speed reducer box body machining and a use method thereof. BACKGROUND

[0002] A speed reducer is a device for achieving the purpose of speed reduction through the transmission between gears. In the production process, the speed reducer is composed of a box body, gears, a movable shaft and other components. Chamfering is required in the machining process of the box body to ensure the smoothness of the corners and avoid scratching the machinist. Chamfering specifically refers to the processing of converting the edges of a workpiece into a certain bevel or smoothness. Most box bodies are cast, so chamfering is required during the production of the box body.

[0003] However, the chamfering distance of the traditional box body chamfering device is generally a specific length and cannot be adjusted. Once the box body is clamped and fixed, the chamfering point cannot be changed. The box body needs to be manually removed, clamped in a new position, and chamfered, which is troublesome and time-consuming and laborious. Therefore, the flexibility is low, and the production efficiency is low. SUMMARY

[0004] To solve the problems in the background art, the application provides a chamfering device for speed reducer box body machining and a use method thereof.

[0005] To achieve the above-mentioned purpose, the application provides the following technical scheme: a chamfering device for speed reducer box body machining, comprising a workbench:

[0006] A clamping part is arranged on the workbench. The clamping part comprises a reverse plate. A first lifting structure is arranged at the bottom end of the reverse plate. A sliding structure is arranged on the first lifting structure. Elastic limiting structures are arranged at both ends of the sliding structure. A clamping structure is further arranged on the sliding structure.

[0007] A chamfering part is arranged on the workbench. The chamfering part comprises a cross-shaped electric slide. A second lifting structure is arranged on the cross-shaped electric slide. A rotating structure is arranged on the second lifting structure. An engagement rotating structure is arranged on the rotating structure. Translation extension structures are arranged at both sides of the engagement rotating structure. Friction structures are arranged at both ends of each translation extension structure.

[0008] Preferably, the first lifting structure is composed of an electric cylinder and an inclined plate top plate fixedly connected to the top end of the electric cylinder, the bottom end of the inclined plate top plate is tightly connected to the inner wall of the bottom end of the inverted plate, the electric cylinder and the workbench and the bottom end of the inverted plate are through slidingly connected, and the bottom end of the inverted plate is fixedly connected to the outer wall of the bottom end of the workbench, the outer wall of the bottom end of the inverted plate is fixedly connected to the inner wall of the bottom end of the workbench, and the outer wall of both ends of the inclined plate top plate is fixedly connected to a limiting plate one.

[0009] Preferably, the sliding structure is composed of two inclined sliding plates and plate grooves opened at both ends of the two inclined sliding plates, the outer wall of the two inclined sliding plates is tightly and slidingly connected to the inner wall of the inverted plate, the inner wall of each plate groove is slidingly connected to each limiting plate one, and the outer wall of both ends of the inclined plate top plate is slidingly connected to the outer wall of the two inclined sliding plates.

[0010] Preferably, the elastic limiting structure is composed of two groups of limiting plates two and springs fixedly connected between the two groups of limiting plates two, each group of limiting plates two is fixedly connected to the outer wall of both ends of the two inclined sliding plates, a sliding groove is opened in the inner wall of both ends of the inverted plate close to the top, and each limiting plate two is slidingly connected to the inner wall of the sliding groove.

[0011] Preferably, the clamping structure is composed of two clamping plates and a plurality of rubber protrusions fixedly connected to one end of the two clamping plates, the bottom end of the two clamping plates is fixedly connected to the top end of the two inclined sliding plates.

[0012] Preferably, the second lifting structure is composed of a hydraulic cylinder and a hollow long plate fixedly connected to the bottom end of the hydraulic cylinder, the top end of the hydraulic cylinder is fixedly connected to a cross-shaped electric slide, and the top end of the cross-shaped electric slide is fixedly connected to the inner wall of the top end of the workbench.

[0013] Preferably, the rotating structure is composed of a rotating rod and a handle fixedly connected to the bottom end of the rotating rod, the rotating rod is through and movably sleeved to the bottom end of the hollow long plate.

[0014] Preferably, the meshing rotating structure is composed of a bevel gear one, a bevel gear two and a screw threadedly connected to the bevel gear two, the bevel gear one is fixedly connected to the top end of the rotating rod, and the bevel gear one and the bevel gear two are meshingly connected.

[0015] Preferably, the translation extension structure is composed of a rectangular plate and telescopic rods fixedly connected to the two sides of one end of the rectangular plate, the other side of each telescopic rod is fixedly connected with the inner wall of the two sides of one end of the hollow long plate, and a scale table is arranged on the outer wall of each telescopic rod, the rectangular plate and the hollow long plate are tightly attached to each other, the rectangular plate and the screw rod are threadedly connected, preferably, the friction structure is composed of a right-angle plate, a chamfer grinding plate fixedly connected to the inner wall of the right-angle plate and a polishing plate, the chamfer grinding plate and the polishing plate are fixedly connected, and the right-angle plate and the outer wall of one end of the rectangular plate are fixedly connected.

[0016] A chamfering method for machining a gearbox housing, the specific use method is as follows:

[0017] S1: the inclined plate top plate in the reverse plate is driven to move up by starting the electric cylinder, the limiting plate one on the two sides is moved up and slides in the plate groove, the inclined surface slide plates on the two sides are pushed to move in opposite directions, the movement of the inclined surface slide plates also synchronously drives the limiting plate two to slide in the sliding groove, thereby pulling the spring, and in turn driving the clamping plates to move in the opposite direction, increasing the spacing to facilitate placing the housing on the reverse plate, the electric cylinder is retracted to move down, and the two clamping plates are moved again, the spacing is reduced, thereby the housing is tightly clamped by the plurality of rubber protrusions, the operation of fixing and limiting is convenient, the structure is simple, and the fixed housing;

[0018] S2: the hollow long plate can be moved randomly in front, back, left and right by starting the cross electric slide, wherein the cross electric slide is prior art, and then the hollow long plate is driven to move down by starting the hydraulic cylinder, so that the chamfer grinding plate contacts the corners of the housing, and in the up-down movement of the hydraulic cylinder, the chamfer grinding plate can grind the corners to make the corners smooth, the chamfering operation is realized, and when the chamfer grinding plate grinds the chamfer, the polishing plate moving up and down with the chamfer grinding plate can polish the corners ground in the last second, so as to avoid burrs on the chamfered corners of the housing;

[0019] S3: the rotating handle is manually rotated to drive the rotating rod to rotate, so as to drive the bevel gear one and the meshing bevel gear two to rotate, the rotation of the bevel gear two drives the screw rod to synchronously rotate, thereby driving the two installed rectangular plates to move, the rectangular plates are limited by the connected telescopic rods during movement, so that the movement is horizontal movement, and the scale table arranged on the telescopic rod can enable the worker to observe the moving spacing in real time, so as to master the desired length, and at the same time, since the screw rod is composed of two opposite threaded rods, when the screw rod rotates, the two rectangular plates move in opposite directions at the same time, and the above can improve the production efficiency of the housing chamfering.

[0020] Compared with the prior art, the beneficial effects of the present application are as follows:

[0021] The present application drives the inclined plate in the inverted plate to move up by starting the electric cylinder, makes the limiting plate 1 on both sides move up and slide in the plate groove, pushes the inclined slide plate on both sides to move in the opposite direction, the movement of the inclined slide plate also synchronously drives the limiting plate 2 to slide in the sliding groove, thereby pulling the spring, and then driving the clamping plate to move in the opposite direction, increasing the spacing to facilitate placing the box on the inverted plate, and then driving the two clamping plates to move by the contraction of the electric cylinder, reducing the spacing, thereby tightly clamping the box through the rubber bumps, the operation of the fixed limiting is convenient, and the structure is simple;

[0022] The box fixed after the present application can start the cross electric slide to drive the hollow long plate to move randomly in the front, back, left and right directions, wherein the cross electric slide is a prior art, and then the hydraulic cylinder is started to drive the hollow long plate to move down, so that the chamfer grinding plate contacts the corners of the box, and in the up-down movement of the hydraulic cylinder, the chamfer grinding plate can grind the corners to make them smooth, realize chamfering operation, and when the chamfer grinding plate grinds the chamfer, the polishing plate moving up and down with the chamfer grinding plate can polish the corners ground in the last second, avoid burrs on the chamfer of the box, and the rotating handle can be manually rotated to drive the rotating rod to rotate, drive the bevel gear I and the meshing bevel gear II to rotate, the rotation of the bevel gear II drives the screw to rotate synchronously, thereby driving the two rectangular plates installed on the sides to move, the rectangular plates are limited by the connected telescopic rods when moving, so that the movement is horizontal movement, and the scale table opened on the telescopic rod can enable the worker to observe the moving distance in real time, thereby grasping the desired length, and at the same time, since the screw is composed of two opposite threaded rods, when the screw rotates, the two rectangular plates move in the opposite direction at the same time, which can improve the production efficiency of the chamfer of the box. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0024] Figure 2 It is a schematic diagram of the overall structure of the clamping part of the present application;

[0025] Figure 3 It is a schematic diagram of the local structure of the clamping part of the present application (one);

[0026] Figure 4 It is a schematic diagram of the local structure of the clamping part of the present application (two);

[0027] Figure 5 It is a schematic diagram of the overall structure of the chamfering part of the present application;

[0028] Figure 6 It is a schematic diagram of the local structure of the chamfering part of the present application (one);

[0029] Figure 7This is a partial structural diagram of the chamfered portion of the present invention (second example);

[0030] Figure 8 This is a schematic diagram of a partial cross-sectional structure of the chamfered portion of the present invention;

[0031] Figure 9 This is a partial structural diagram of the chamfered portion of the present invention (third one).

[0032] In the picture:

[0033] 1. Machine tool;

[0034] 2. Clamping part; 21. Inverted plate; 22. Electric cylinder; 23. Inclined top plate; 24. Limiting plate one; 25. Inclined sliding plate; 26. Plate groove; 27. Limiting plate two; 28. Spring; 29. ​​Clamping plate; 230. Rubber protrusion;

[0035] 3. Chamfered section; 31. Cross-shaped electric slide rail; 32. Hydraulic cylinder; 33. Hollowed-out long plate; 34. Rotating rod; 35. Rotating handle; 36. Helical gear one; 37. Helical gear two; 38. Screw; 39. Rectangular plate; 340. Telescopic rod; 341. Right angle plate; 342. Chamfering grinding plate; 343. Polishing plate. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] like Figures 1 to 9 As shown, the present invention provides a chamfering device for machining a reducer housing, including a worktable 1:

[0038] Clamping part 2 is located on the worktable 1. Clamping part 2 includes a tilting plate 21. A first lifting structure is provided on the bottom end of the tilting plate 21. A sliding structure is provided on the first lifting structure. An elastic limiting structure is provided on both ends of the sliding structure. A clamping structure is also provided on the sliding structure.

[0039] The chamfering part 3 is located on the worktable 1. The chamfering part 3 includes a cross electric slide rail 31. The cross electric slide rail 31 is provided with a second lifting structure. The second lifting structure is provided with a rotating structure. The rotating structure is provided with a meshing rotation structure. Both sides of the meshing rotation structure are provided with translation extension structures. Both ends of each translation extension structure are provided with friction structures.

[0040] The above scheme is adopted as follows: The electric cylinder 22 is activated to move the inclined plate 23 inside the inverted plate 21 upwards, causing the limiting plates 24 on both sides to slide upwards within the plate groove 26. This pushes the inclined sliding plates 25 on both sides to move in opposite directions, thereby pulling the spring 28, which in turn causes the clamping plate 29 to move synchronously in the opposite direction, increasing the spacing to facilitate placing the box on the inverted plate 21. The cross-shaped electric slide rail 31 is activated to move the hollow long plate 33 freely forward, backward, left, and right. Then, the hydraulic cylinder 32 is activated to move the hollow long plate 33 downwards, so that the chamfering grinding plate 342 contacts the corner of the box. During the up-and-down movement of the hydraulic cylinder 32, the box can be moved downwards. The movable chamfering grinding plate 342 grinds the edges and corners to make them smooth, thus achieving the chamfering operation. By manually rotating the handle 35, the rotating rod 34 is rotated, which in turn drives the helical gear 36 and the meshing helical gear 37 to rotate. The rotation of the helical gear 37 drives the screw 38 to rotate synchronously, thereby moving the rectangular plates 39 installed on both sides. When the rectangular plates 39 move, they are limited by the connected telescopic rod 340, so that their movement is horizontal. Since the screw 38 is composed of two opposite threaded rods, when the screw 38 rotates, it will cause the two rectangular plates 39 to move simultaneously in opposite directions.

[0041] The first lifting structure consists of an electric cylinder 22 and an inclined plate 23 fixedly connected to the top of the electric cylinder 22. The bottom end of the inclined plate 23 and the inner wall of the bottom end of the inverted plate 21 can be tightly fitted and connected. The electric cylinder 22 and the bottom end of the working platform 1 and the inverted plate 21 are all slidably connected and fixedly connected to the outer wall of the bottom end of the working platform 1. The outer wall of the bottom end of the inverted plate 21 and the inner wall of the bottom end of the working platform 1 are fixedly connected. Limiting plates 24 are fixedly connected to the outer walls of both ends of the inclined plate 23. The sliding structure consists of two inclined sliding plates 25 and plate grooves 26 opened at both ends of the two inclined sliding plates 25. The outer walls of the two inclined sliding plates 25 and the inner wall of the inverted plate 21 are fitted and slidably connected. Each limiting plate 24 and the inner wall of each plate groove 26 can be slidably connected. The outer walls of both ends of the inclined plate 23 and the outer walls of the two inclined sliding plates 25 can be slidably connected.

[0042] Using the above scheme: by starting the electric cylinder 22, the inclined plate top plate 23 in the tilting plate 21 is moved upward, so that the first limiting plate 24 on both sides slides upward in the plate groove 26, pushing the inclined sliding plate 25 on both sides to move in opposite directions. The movement of the inclined sliding plate 25 will also drive the second limiting plate 27 to slide in the groove.

[0043] The elastic limiting structure is composed of two groups of limiting plates two 27 and springs 28 fixedly connected between the two groups of limiting plates two 27. Each group of limiting plates two 27 is fixedly connected with the outer walls of the two ends of the two inclined sliding plates 25. The inner walls of the two ends of the top of the inverted plate 21 are provided with sliding grooves, and each limiting plate two 27 is slidingly connected with the inner walls of the sliding grooves. The clamping structure is composed of two clamping plates 29 and a plurality of rubber protrusions 230 fixedly connected to one end of the two clamping plates 29. The bottom ends of the two clamping plates 29 are fixedly connected with the top ends of the two inclined sliding plates 25.

[0044] The above scheme is adopted: the limiting plate two 27 slides in the sliding groove, thereby pulling the spring 28, and then driving the clamping plate 29 to move in the opposite direction synchronously, increasing the spacing to facilitate placing the box on the inverted plate 21. The electric cylinder 22 is retracted and moved downward, again driving the two clamping plates 29 to move, the spacing is reduced, thereby the box is tightly clamped by the plurality of rubber protrusions 230. The operation of fixing and limiting is convenient, and the structure is simple.

[0045] The second lifting structure is composed of a hydraulic cylinder 32 and a hollow long plate 33 fixedly connected to the bottom end of the hydraulic cylinder 32. The top end of the hydraulic cylinder 32 is fixedly connected with the cross electric slide 31, and the top end of the cross electric slide 31 is fixedly connected with the inner wall of the top end of the workbench 1. The rotating structure is composed of a rotating rod 34 and a handle 35 fixedly connected to the bottom end of the rotating rod 34. The rotating rod 34 and the bottom end of the hollow long plate 33 are throughly and movably connected. The meshing rotating structure is composed of a bevel gear one 36, a bevel gear two 37 and a screw rod 38 screwedly connected to the bevel gear two 37. The bevel gear one 36 is fixedly connected with the top end of the rotating rod 34, and the bevel gear one 36 and the bevel gear two 37 are meshingly connected.

[0046] The above scheme is adopted: the cross electric slide 31 is started to drive the hollow long plate 33 to move randomly in front and back and left and right. The cross electric slide 31 is a prior art, and the handle 35 can be manually rotated to drive the rotating rod 34 to rotate, thereby driving the bevel gear one 36 and the meshing bevel gear two 37 to rotate. The rotation of the bevel gear two 37 drives the screw rod 38 to rotate synchronously, thereby driving the two rectangular plates 39 installed on the two sides to move. Since the screw rod 38 is composed of two opposite threaded rods, when the screw rod 38 rotates, the two rectangular plates 39 move in opposite directions at the same time. The above can improve the production efficiency of the box chamfer.

[0047] The translation elongated structure is composed of a rectangular plate 39 and telescopic rods 340 fixedly connected to both sides of one end of the rectangular plate 39, the other side of each telescopic rod 340 is fixedly connected to the inner wall of both sides of one end of the hollow long plate 33, and a scale table is arranged on the outer wall of each telescopic rod 340, the rectangular plate 39 and the hollow long plate 33 are tightly attached to each other, the rectangular plate 39 is threadedly connected to the screw rod 38, and the friction structure is composed of a right-angle plate 341, a chamfer grinding plate 342 fixedly connected to the inner wall of the right-angle plate 341, and a polishing plate 343.

[0048] The above scheme has the following advantages: when the rectangular plate 39 moves, the telescopic rods 340 connected to the rectangular plate 39 limit the movement of the rectangular plate 39, so that the rectangular plate 39 moves horizontally, and the scale table arranged on the telescopic rods 340 allows the staff to observe the moving distance in real time, so as to control the desired length, the hollow long plate 33 is driven downward by the hydraulic cylinder 32, so that the chamfer grinding plate 342 contacts the corner of the box, and in the process of upward and downward movement of the hydraulic cylinder 32, the chamfer grinding plate 342 grinds the corner, so that the corner becomes smooth, and the chamfering operation is realized, and when the chamfer grinding plate 342 grinds the chamfer, the polishing plate 343 moving up and down with the chamfer grinding plate 342 polishes the corner ground in the last second, so as to avoid burrs on the chamfer of the box.

[0049] A chamfering method for machining a reducer box, the specific use method is as follows:

[0050] S1: the inclined plate top plate in the reverse plate is driven upward by the starting electric cylinder, the limiting plate one on both sides is moved upward and slides in the plate groove, the inclined surface slide plates on both sides are pushed to move in opposite directions, the movement of the inclined surface slide plates also synchronously drives the limiting plate two to slide in the sliding groove, thereby pulling the spring, and then driving the clamping plate to move in the opposite direction, increasing the distance to facilitate placing the box on the reverse plate, the electric cylinder is retracted downward, and the two clamping plates are driven to move again, the distance is reduced, and the box is tightly clamped by the rubber protrusions, the fixing and limiting operation is convenient, the structure is simple, and the fixed box;

[0051] S2: the hollow long plate can be moved randomly in front, back, left and right by starting the cross electric slide, the cross electric slide is prior art, and then the hollow long plate is driven downward by the hydraulic cylinder, so that the chamfer grinding plate contacts the corner of the box, in the process of upward and downward movement of the hydraulic cylinder, the chamfer grinding plate grinds the corner, so that the corner becomes smooth, and the chamfering operation is realized, and when the chamfer grinding plate grinds the chamfer, the polishing plate moving up and down with the chamfer grinding plate polishes the corner ground in the last second, so as to avoid burrs on the chamfer of the box;

[0052] S3: through artificial rotation handle drive rotating rod rotation, to drive the bevel gear one and meshing bevel gear two rotation, the rotation of bevel gear two will drive screw rod synchronous rotation, thus to drive the two sides of the installation of rectangular plate movement, rectangular plate moves will be connected to the telescopic rod for limiting, make its movement process for horizontal movement, and the scale table opened on the telescopic rod can make the staff real-time observation of the moving interval, thus to master the length that wants, at the same time, because the screw rod is two opposite thread rod so constituted, so when the screw rod rotates, will make two rectangular plate according to the opposite direction of movement, above can improve the production efficiency of the box chamfer.

[0053] It should be noted that in this document, the terms“first”,“second”, and so on are used merely to distinguish one entity or action from another, and do not necessarily require or imply any actual relationship or order between or among these entities or actions. Moreover, the terms“include”,“contain” or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device.

[0054] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A chamfering device for machining a reducer housing, comprising a worktable (1), characterized in that: Clamping part (2), the clamping part (2) is located on the worktable (1), the clamping part (2) includes a tilting plate (21), the bottom end of the tilting plate (21) is provided with a first lifting structure, the first lifting structure is provided with a sliding structure, both ends of the sliding structure are provided with elastic limiting structures, and the sliding structure is also provided with a clamping structure; Chamfered part (3), the chamfered part (3) is located on the worktable (1), the chamfered part (3) includes a cross electric slide (31), the cross electric slide (31) is provided with a second lifting structure, the second lifting structure is provided with a rotating structure, the rotating structure is provided with a meshing rotation structure, both sides of the meshing rotation structure are provided with translation extension structures, and both ends of each translation extension structure are provided with friction structures; The first lifting structure is composed of an electric cylinder (22) and an inclined plate top plate (23) fixedly connected to the top of the electric cylinder (22). The bottom end of the inclined plate top plate (23) and the inner wall of the bottom end of the inverted plate (21) can be tightly connected. The bottom end of the electric cylinder (22), the work platform (1), and the inverted plate (21) are all slidably connected and fixedly connected to the outer wall of the bottom end of the work platform (1). The outer wall of the bottom end of the inverted plate (21) and the inner wall of the bottom end of the work platform (1) are fixedly connected. Limiting plates (24) are fixedly connected to the outer walls of both ends of the inclined plate top plate (23). The sliding structure consists of two inclined sliding plates (25) and plate grooves (26) opened at both ends of the two inclined sliding plates (25). The outer walls of the two inclined sliding plates (25) and the inner wall of the inverted plate (21) are slidably connected. Each limiting plate (24) and the inner wall of each plate groove (26) are slidably connected. The outer walls at both ends of the inclined plate top plate (23) and the outer walls of the two inclined sliding plates (25) are slidably connected. The elastic limiting structure consists of two sets of limiting plates (27) and a spring (28) fixedly connected between the two sets of limiting plates (27). Each set of limiting plates (27) is fixedly connected to the outer walls of both ends of the two inclined sliding plates (25). The inner walls of the two ends of the inverted plate (21) near the top are provided with sliding grooves, and each limiting plate (27) is slidably connected to the inner wall of the sliding groove. The clamping structure consists of two clamping plates (29) and a number of rubber protrusions (230) fixedly connected to one end of the two clamping plates (29). The bottom ends of the two clamping plates (29) are fixedly connected to the top ends of the two inclined sliding plates (25). The translation extension structure is composed of a rectangular plate (39) and telescopic rods (340) fixedly connected to both sides of one end of the rectangular plate (39). The outer wall of the other side of each telescopic rod (340) is fixedly connected to the inner wall of one side of the hollow long plate (33). Each telescopic rod (340) has a scale on its outer wall. The rectangular plate (39) and the hollow long plate (33) can fit tightly together. The rectangular plate (39) and the screw (38) are threaded together. The friction structure is composed of a right-angle plate (341) and a chamfering grinding plate (342) and a polishing plate (343) fixedly connected to the inner wall of the right-angle plate (341). The chamfering grinding plate (342) and the polishing plate (343) are fixedly connected. The right-angle plate (341) is fixedly connected to the outer wall of one end of the rectangular plate (39).

2. The chamfering device for machining a reducer housing according to claim 1, characterized in that: The second lifting structure consists of a hydraulic cylinder (32) and a hollow long plate (33) fixedly connected to the bottom end of the hydraulic cylinder (32). The top end of the hydraulic cylinder (32) is fixedly connected to the cross electric slide rail (31), and the top end of the cross electric slide rail (31) is fixedly connected to the inner wall of the top end of the worktable (1).

3. The chamfering device for machining a reducer housing according to claim 2, characterized in that: The rotating structure consists of a rotating rod (34) and a rotating handle (35) fixedly connected to the bottom end of the rotating rod (34). The rotating rod (34) and the bottom end of the hollow long plate (33) are connected in a through-hole.

4. The chamfering device for machining a reducer housing according to claim 3, characterized in that: The meshing and rotating structure consists of a helical gear one (36), a helical gear two (37), and a screw (38) fixedly connected to the helical gear two (37). The top ends of the helical gear one (36) and the rotating rod (34) are fixedly connected, and the helical gear one (36) and the helical gear two (37) are meshed together.

5. A method of using the chamfering device for machining a reducer housing as described in claim 4, characterized in that: The specific usage method is as follows: S1: By starting the electric cylinder (22), the inclined plate top plate (23) in the inverted plate (21) is moved upward, so that the first limiting plate (24) on both sides slides upward in the plate groove (26), pushing the inclined sliding plate (25) on both sides to move in opposite directions. The movement of the inclined sliding plate (25) will also drive the second limiting plate (27) to slide in the groove, thereby pulling the spring (28), and then driving the clamping plate (29) to move in opposite directions, increasing the distance to facilitate placing the box on the inverted plate (21). By retracting and moving the electric cylinder (22) downward, the two clamping plates (29) are moved again, and the distance is reduced. Thus, the box is tightly clamped by several rubber protrusions (230). The fixed limiting operation is convenient, the structure is simple, and the fixed box is... S2: The hollow long plate (33) can be moved freely forward, backward and left and right by starting the cross electric slide rail (31), and then the hydraulic cylinder (32) can be started to move the hollow long plate (33) down, so that the chamfering grinding plate (342) contacts the corner of the box. During the up and down movement of the hydraulic cylinder (32), the chamfering grinding plate (342) can be driven to grind its corner, making its corner round and realizing the chamfering operation. When the chamfering grinding plate (342) grinds the chamfer, the polishing plate (343) moving up and down with the chamfering grinding plate (342) will polish the corner ground in the previous second, avoiding burrs at the chamfer of the box. S3: By manually rotating the handle (35), the rotating rod (34) is rotated, which in turn drives the first helical gear (36) and the meshing helical gear second (37) to rotate. The rotation of the second helical gear (37) will drive the screw (38) to rotate synchronously, thereby driving the rectangular plates (39) installed on both sides to move. When the rectangular plates (39) move, they will be limited by the connected telescopic rod (340), so that their movement is horizontal. The scale on the telescopic rod (340) allows the staff to observe the distance of movement in real time, thereby grasping the desired length. At the same time, since the screw (38) is composed of two opposite threaded rods, when the screw (38) rotates, it will cause the two rectangular plates (39) to move in opposite directions at the same time. This can improve the production efficiency of the box chamfer.

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