Axle reducer gear inner hole polishing device

Abstract

The invention relates to the technical field of gear machining, and discloses an axle speed reducer gear inner hole grinding device, a supporting machine base is arranged on the outer side of a machining chuck, a grinding tool switching assembly is arranged at the top of the supporting machine base, and the grinding tool switching assembly comprises a switching seat, an extending profiling head, a grinding head and two vertical lifting seats. The stretching-in profiling head and the grinding head are both opposite to the circle center of the gear machined part, and the switching base is rotationally connected between the two vertical lifting bases. A profiling object is formed through heating and drying, the profiling object is taken out of the outer side of a gear machining part through a telescopic driving part, the auxiliary grinding effect can be achieved according to the shape and size of the profiling object, the concentricity, roundness and taper in a hole can be analyzed, a machining chuck is trimmed according to a detection result, complex error size calculation work is avoided, and the machining efficiency is improved. And for a polished product, the follow-up machining precision can be improved, and finishing work is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of gear processing, in particular to a device for grinding the inner hole of an axle reducer gear. Background Art

[0002] The gear reducer is an independent closed transmission device between the prime mover and the working machine, which is used to reduce the speed and increase the torque to meet the work needs. The gear reducer is a combination of a reduction motor and a large reducer. It does not require couplings and adapters, has a compact structure, and the load is distributed on the planetary gears. Therefore, the load-bearing capacity is higher than that of a general helical gear reducer, meeting the needs of high torque output in a small space. The car axle is connected to the frame through the suspension, and wheels are installed at both ends. The function of the axle is to bear the load of the car and maintain the normal driving of the car on the road. In order to shift the gear, multiple driven gears are installed on the shaft, including first, second, third, and fourth gears, and It is equipped with a second, third, fourth, and fifth gear shift synchronizer device, so there are multiple gears in the axle reducer structure. The reducer is a mechanical transmission device, usually composed of high-speed gears, low-speed gears, bearings and outer casings. The internal accessory gears need to cooperate to achieve stable transmission, so the accuracy of the inner hole is particularly important. When grinding the holes of the trimmed or processed gears, there may be errors in the concentricity of the center of the hole relative to the center of the gear ring, the roundness of the hole, and the taper of the hole. During the gear processing process, if a tangential error is caused, the eccentricity is not easy to measure, which brings difficulties to the adjustment of the machine tool or the workpiece. Summary of the invention

[0003] The purpose of the present invention is to provide a device for grinding the inner hole of an axle reducer gear, which can improve the subsequent processing accuracy and facilitate the finishing work for the ground product by avoiding the complicated calculation of error dimensions and the need to repeatedly reach into the hole for measurement, and can effectively solve the problems in the background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A device for grinding the inner hole of an axle reducer gear, comprising a processing chuck for clamping a gear processing part, characterized in that a supporting machine base is provided on the outer side of the processing chuck, a grinding tool switching assembly is provided on the top of the supporting machine base, the grinding tool switching assembly comprises a switching seat, an extended profiling head, a grinding head and two vertical lifting seats, the extended profiling head and the grinding head are both opposite to the center of the circle of the gear processing part, the switching seat is rotatably connected between the two vertical lifting seats to switch the extended profiling head and the grinding head for use, the extended profiling head stores a profiling liquid for injecting into the inner hole of the gear processing part, a double-sided sealing assembly is provided on the outer side of the processing chuck, the double-sided sealing assembly comprises a second sealing ring, two first sealing rings and two connecting cross plates, the first sealing ring and the second sealing ring are respectively located on both sides of the gear processing part to seal the inner hole.

[0006] As a further solution of the present invention: the profiling head is provided with a plurality of external extrusion holes for extruding the profiling liquid, and the profiling liquid is heated and dried by the profiling head to form a profiling object.

[0007] As a further solution of the present invention: the switching seat is provided with a melting chamber, and a telescopic driving member for driving the extended profiling head to move is provided in the melting chamber, and the extended profiling head is located in the melting chamber to melt the profiling object.

[0008] As a further solution of the present invention: the two connecting transverse plates are respectively slidably connected to the two vertical lifting seats, and the vertical lifting seats are provided with a positioning cavity for locating the position of the connecting transverse plates.

[0009] As a further solution of the present invention: the gear processing part has a filling area for filling with contouring liquid, an error zone is provided between the inner hole of the gear processing part and the filling area, and a concentric deviation distance is provided between the center of the inner hole of the gear processing part and the center of the filling area.

[0010] As a further solution of the present invention: a circular hole for avoiding the position of the telescopic driving member is provided between the two first sealing rings, and the first sealing ring and the second sealing ring are both connected to the connecting transverse plate through connecting retaining columns.

[0011] As a further solution of the present invention: a sealing gasket is fixedly connected to one side of the first sealing ring and the second sealing ring close to the gear processing part, and the first sealing ring and the second sealing ring move horizontally and are located outside the gear processing part.

[0012] As a further solution of the present invention: the profiling object leaves the gear workpiece, analyzes the concentricity, roundness and taper in the hole, and trims the processing chuck and the gear workpiece according to the detection results.

[0013] As a further solution of the present invention, a device for grinding the inner hole of a gear of an axle reducer includes a method for using the following:

[0014] A: For the grinding of the gear processing part, the switching seat can be rotated and switched for use, the grinding head is used to grind the gear processing part, and the insertion profiling head is used to detect the grinding effect of the gear processing part. When the insertion profiling head is inserted into the inner hole of the gear processing part, the first sealing ring and the second sealing ring can be respectively located at the two sides of the gear processing part to seal the inner hole of the gear processing part;

[0015] B: The profiling liquid is squeezed out of the profiling head, and a profiling object is formed by heating and drying, and is brought out to the outside of the gear processing part by the telescopic driving member. It can play an auxiliary grinding role according to the shape and size of the profiling object, and can analyze the concentricity, roundness and taper in the hole, and the processing chuck can be trimmed according to the detection results.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] For the grinding of gear workpieces, the switching seat can be rotated to switch the use function, the grinding head is used to grind the gear workpiece, and the extended profiling head is used to detect the grinding effect of the gear workpiece. When the extended profiling head is inserted into the inner hole of the gear workpiece, the first sealing ring and the second sealing ring can be respectively located on both sides of the gear workpiece to seal the inner hole of the gear workpiece, and the profiling liquid is squeezed out of the profiling head, and a profiling object is formed by heating and drying, and is brought out to the outside of the gear workpiece by the telescopic driving member. According to the shape and size of the profiling object, it can play an auxiliary grinding role, and the concentricity, roundness and taper in the hole can be analyzed. The chuck is trimmed according to the detection results, avoiding the calculation of complex error dimensions and the need to insert the hole for multiple measurements. For the polished products, the subsequent processing accuracy can be improved and the trimming work is beneficial. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a structural schematic diagram of a device for grinding the inner hole of an axle reducer gear;

[0020] Figure 2A top view of a device for grinding the inner hole of an axle reducer gear;

[0021] Figure 3 It is a schematic diagram of the structure of a double-sided sealing assembly in a gear inner hole grinding device for an axle reducer;

[0022] Figure 4 It is a structural schematic diagram of a grinding tool switching assembly in a gear inner hole grinding device for an axle reducer;

[0023] Figure 5 A schematic diagram of an error state in a gear inner hole grinding device for an axle reducer;

[0024] In the figure: 1. processing chuck; 2. gear processing part; 21. filling area; 22. error area; 23. concentric deviation spacing; 3. support base; 4. grinding knife switching assembly; 41. switching seat; 411. melting chamber; 42. extending into the profiling head; 421. external extrusion hole; 43. vertical lifting seat; 431. positioning chamber; 44. grinding head; 45. telescopic drive member; 5. double-sided sealing assembly; 51. connecting cross plate; 52. first sealing ring; 53. second sealing ring; 54. sealing pad; 55. connecting retaining column. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] See also Figure 1 to Figure 5 In an embodiment of the present invention, a gear inner hole grinding device for an axle reducer includes a processing chuck 1 for clamping a gear processing part 2, characterized in that a support machine base 3 is provided on the outside of the processing chuck 1, a grinding tool switching assembly 4 is provided on the top of the support machine base 3, the grinding tool switching assembly 4 includes a switching seat 41, an extended profiling head 42, a grinding head 44 and two vertical lifting seats 43, the extended profiling head 42 and the grinding head 44 are both opposite to the center of the gear processing part 2, the switching seat 41 is rotatably connected between the two vertical lifting seats 43, and the extended profiling head 42 and the grinding head 44 are switched for use, and the extended profiling head 42 stores a profiling liquid for injection into the inner hole of the gear processing part 2, and a double-sided sealing assembly 5 is provided on the outside of the processing chuck 1, and the double-sided sealing assembly 5 includes a second sealing ring 53, two first sealing rings 52 and two connecting cross plates 51, and the first sealing ring 52 and the second sealing ring 53 are respectively located on both sides of the gear processing part 2 to seal the inner hole.

[0027] In this embodiment: the gear processing part 2 is clamped in the processing chuck 1, and then polished by the grinding head 44. For the grinding of the gear processing part 2, the switching seat 41 can be rotated to switch the function of use. The switching seat 41 is rotatably connected between the two vertical lifting seats 43. The movement of the switching seat 41 can be controlled by a motor, and the grinding head 44 to be used or the extended profiling head 42 is directed to the gear processing part 2. The extended profiling head 42 is directed to the gear processing part 2 to detect the grinding effect. A double-sided sealing component 5 is provided on the outer side of the processing chuck 1. The double-sided sealing component 5 includes a second sealing ring 53, two first sealing rings 52 and two connecting cross plates 51. The first sealing ring 52 and the second sealing ring 53 are respectively located on both sides of the gear processing part 2 to seal the inner hole. When the extended profiling head 42 is extended into the inner hole of the gear processing part 2, the first sealing ring 52 and the second sealing ring 53 can be respectively located on both sides of the gear processing part 2 to seal the inner hole of the gear processing part 2. The first sealing ring 52 and the second sealing ring 53 are close to A sealing gasket 54 is fixedly connected to one side of the gear processing part 2. The sealing gasket 54 can ensure the matching gap so that the first sealing ring 52 and the second sealing ring 53 can be used stably. The telescopic driving member 45 drives the insertion profiling head 42 to move, and can enter the gear processing part 2, or leave the gear processing part 2, and control the first sealing ring 52 and the second sealing ring 53 to be located on the outside of the gear processing part 2. A linear guide drive can be set. There is a circular hole between the two first sealing rings 52 for avoiding the position of the telescopic driving member 45. The first sealing ring 52 and the second sealing ring 53 are both connected to the connecting cross plate 51 through a connecting retaining column 55. The two connecting cross plates 51 are respectively slidably connected to the two vertical lifting seats 43. The vertical lifting seat 43 is provided with a positioning cavity 431 for locating the position of the connecting cross plates 51, and when the connecting cross plates 51 slide in the vertical lifting seat 43, the two first sealing rings 52 are closed and sealed on the outside of the gear processing part 2 and the telescopic driving member 45, so that the insertion profiling head 42 is used in the inner hole.

[0028] The profiling head 42 is provided with a plurality of external extrusion holes 421 for extruding the profiling liquid. The profiling liquid can be made of plastic. The profiling liquid is heated and dried by the profiling head 42 to form a profiling object. The extrusion method can be pushed by a push plate, and the profiling liquid can be extruded from the external extrusion hole 421 into the inner hole of the gear processing part 2. After drying, the first sealing ring 52 and the second sealing ring 53 can be controlled to withdraw, so that the profiling head 42 is moved to the outside of the gear processing part 2, and the profiling object leaves the gear processing part 2. The concentricity, roundness and taper in the hole are analyzed, and the chuck 1 and the gear processing part 2 are trimmed according to the detection results, so as to The object can be easily measured and compared, and measurement convenience is provided for gears with larger thickness. It can also assist grinding according to the shape and size of the profiling object, and can analyze the concentricity, roundness and taper in the hole. The chuck 1 is repaired according to the detection results. The switching seat 41 is provided with a melting chamber 411. The melting chamber 411 is provided with a telescopic driving member 45 for driving the extended profiling head 42 to move. The extended profiling head 42 is located in the melting chamber 411 to melt the profiling object. The extended profiling head 42 is driven by the telescopic driving member 45 to move toward the melting chamber 411, so that the formed profiling object can be melted, and the melted object can be convenient for next use.

[0029] The gear processing part 2 has a filling area 21 for filling with a profiling liquid, an error area 22 is provided between the inner hole of the gear processing part 2 and the filling area 21, and a concentric deviation spacing 23 is provided between the center of the inner hole of the gear processing part 2 and the center of the filling area 21. When the profiling liquid is located in the filling area 21, a profiling object corresponding to the filling area 21 is formed. According to the size measurement of the filling area 21 and the comparison with the error area 22, it can be determined as a phenomenon of concentricity error. The problem can be adjusted according to the distance of the concentric deviation spacing 23. According to the inner hole size accuracy of the profiling comparison, the degree of influence on the gear accuracy is analyzed. According to some factors of assembly problems or machine tool problems, the direction of problem solving can be determined, and the cause of the loss of inner hole accuracy can be found out to deal with the problem.

[0030] like Figure 1 to Figure 5 As shown, the present invention also provides a method for using the axle reducer gear inner hole grinding device, and the specific steps are as follows:

[0031] A: For the grinding of the gear processing part 2, the switch seat 41 can be rotated and switched to use, the grinding head 44 is facing the gear processing part 2 for grinding, and the extended profiling head 42 is facing the gear processing part 2 to detect the grinding effect. When the extended profiling head 42 is extended into the inner hole of the gear processing part 2, the first sealing ring 52 and the second sealing ring 53 can be respectively located at the two sides of the gear processing part 2 to seal the inner hole of the gear processing part 2;

[0032] B: Insert the profiling head 42 to squeeze out the profiling liquid, form a profiling object by heating and drying, and bring it out to the outside of the gear processing part 2 by the telescopic driving member 45. According to the shape and size of the profiling object, it can play an auxiliary grinding role, and can analyze the concentricity, roundness and taper in the hole, and perform trimming and processing of the chuck 1 according to the test results.

[0033] The working principle of the present invention is: the gear processing part 2 is clamped in the processing chuck 1, and then the grinding head 44 is used for grinding. For the grinding of the gear processing part 2, the switching seat 41 can be rotated to switch the function used. The switching seat 41 is rotatably connected between the two vertical lifting seats 43. The movement of the switching seat 41 can be controlled by a motor, and the grinding head 44 or the extended profiling head 42 to be used is directed to the gear processing part 2. The extended profiling head 42 is directed to the gear processing part 2 to detect the grinding effect. When the extended profiling head 42 is inserted into the inner hole of the gear processing part 2, it can be The first sealing ring 52 and the second sealing ring 53 are respectively located at the two sides of the gear processing part 2 to seal the inner hole of the gear processing part 2. The telescopic driving member 45 drives the extended profiling head 42 to move, and can enter the gear processing part 2 or leave the gear processing part 2. There is a circular hole between the two first sealing rings 52 for avoiding the position of the telescopic driving member 45. The first sealing ring 52 and the second sealing ring 53 are connected to the connecting horizontal plate 51 through the connecting retaining column 55. The two connecting horizontal plates 51 are respectively connected to the two vertical lifting seats 43 in a sliding manner. The vertical lifting seats 43 is provided with a positioning cavity 431 for locating the position of the connecting transverse plate 51, and when the connecting transverse plate 51 slides in the vertical lifting seat 43, the two first sealing rings 52 are closed and sealed on the outer sides of the gear processing part 2 and the telescopic driving part 45, so that the profiling head 42 is inserted into the inner hole, and the profiling head 42 is provided with a plurality of outer extrusion holes 421 for extruding the profiling liquid. The profiling liquid can be made of plastic material. The profiling liquid is heated and dried by the profiling head 42 to form a profiling object, and the profiling liquid can be extruded from the outer extrusion holes 421 to the gear processing part 2. In the inner hole, after drying, the first sealing ring 52 and the second sealing ring 53 can be controlled to withdraw, so that the extended profiling head 42 can be moved to the outside of the gear processing part 2, so that it is convenient to measure and compare according to the profiling object, and it can play an auxiliary grinding role according to the shape and size of the profiling object, and the concentricity, roundness and taper in the hole can be analyzed. The chuck 1 is trimmed according to the detection results. The extended profiling head 42 is driven by the telescopic driving member 45 to move toward the melting chamber 411, and the formed profiling object can be melted, and the melted object can be convenient for next use.

[0034] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for grinding the inner hole of a gear of an axle reducer, comprising a processing chuck (1) for clamping a gear processing part (2), characterized in that: A support base (3) is provided on the outside of the processing chuck (1), and a sharpening switching assembly (4) is provided on the top of the support base (3). The sharpening switching assembly (4) comprises a switching seat (41), an extended profiling head (42), a grinding head (44) and two vertical lifting seats (43). The extended profiling head (42) and the grinding head (44) are both opposite to the center of the gear processing part (2). The switching seat (41) is rotatably connected between the two vertical lifting seats (43) to switch the extended profiling head (42) and the grinding head (44). The profiling head (42) and the grinding head (44) are used together, the profiling liquid for injection into the inner hole of the gear processing part (2) is stored inside the profiling head (42), and a double-sided sealing component (5) is provided on the outer side of the processing chuck (1), and the double-sided sealing component (5) includes a second sealing ring (53), two first sealing rings (52) and two connecting cross plates (51), and the first sealing ring (52) and the second sealing ring (53) are respectively located on both sides of the gear processing part (2) to seal the inner hole.

2. The inner hole grinding device of the axle reducer gear according to claim 1, characterized in that: The profiling head (42) is provided with a plurality of external extrusion holes (421) for extruding profiling liquid, and the profiling liquid is heated and dried by the profiling head (42) to form a profiling object.

3. The inner hole grinding device of the axle reducer gear according to claim 2, characterized in that: The switching seat (41) is provided with a melting chamber (411), and a telescopic driving member (45) for driving the insertion profiling head (42) to move is provided in the melting chamber (411). The insertion profiling head (42) is located in the melting chamber (411) to melt the profiling object.

4. The inner hole grinding device of the axle reducer gear according to claim 1, characterized in that: The two connecting transverse plates (51) are respectively slidably connected to the two vertical lifting seats (43), and the vertical lifting seats (43) are provided with a positioning cavity (431) for locating the position of the connecting transverse plates (51).

5. The inner hole grinding device of the axle reducer gear according to claim 1, characterized in that: The gear processing part (2) has a filling area (21) for filling with a contouring liquid, an error area (22) is provided between the inner hole of the gear processing part (2) and the filling area (21), and a concentric deviation spacing (23) is provided between the center of the inner hole of the gear processing part (2) and the center of the filling area (21).

6. The inner hole grinding device of the axle reducer gear according to claim 3, characterized in that: A circular hole for avoiding the position of the telescopic driving member (45) is provided between the two first sealing rings (52), and the first sealing ring (52) and the second sealing ring (53) are both connected to the connecting transverse plate (51) via a connecting retaining column (55).

7. The inner hole grinding device of the axle reducer gear according to claim 1, characterized in that: The first sealing ring (52) and the second sealing ring (53) are both fixedly connected with a sealing gasket (54) on one side close to the gear processing part (2), and the first sealing ring (52) and the second sealing ring (53) move horizontally and are located outside the gear processing part (2).

8. The inner hole grinding device of the axle reducer gear according to claim 2, characterized in that: The profiling object leaves the gear processing part (2) to analyze the concentricity, roundness and taper of the hole, and the processing chuck (1) and the gear processing part (2) are trimmed according to the detection results.

9. The inner hole grinding device of the axle reducer gear according to any one of claims 1 to 8, characterized in that: Including the following usage: A: For the grinding of the gear processing part (2), the switching seat (41) can be rotated and switched for use, the grinding head (44) performs grinding work on the gear processing part (2), and the insertion profiling head (42) detects the grinding effect on the gear processing part (2). When the insertion profiling head (42) is inserted into the inner hole of the gear processing part (2), the first sealing ring (52) and the second sealing ring (53) can be respectively located on both sides of the gear processing part (2) to seal the inner hole of the gear processing part (2); B: The profiling liquid is squeezed out of the profiling head (42), and a profiling object is formed by heating and drying. The profiling object is brought out to the outside of the gear processing part (2) by the telescopic driving part (45). According to the shape and size of the profiling object, it can play an auxiliary grinding role, and can analyze the concentricity, roundness and taper in the hole, and the processing chuck (1) can be trimmed according to the detection results.

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