Multi-coupling gear chamfering equipment

Abstract

The utility model discloses a multi-coupling gear chamfering device, which is a device capable of marking under the condition that two gears in a multi-coupling gear are consistent in tooth phase, and specifically comprises a base, the base is provided with a rotating table capable of installing the multi-coupling gear and driving the multi-coupling gear to rotate around the axis of the multi-coupling gear, and the rotating table is provided with a rotating shaft. A chamfering head capable of moving in the axial direction and the radial direction of the multi-coupling gear is arranged on the base, a tooth aligning switch capable of detecting tooth phases of all gears on the multi-coupling gear is further arranged on the base, and a marking device capable of marking on the multi-coupling gear is further arranged on the base. According to the technical scheme, the tooth alignment switch in the gear chamfering machine is used for detecting the phase of each tooth in each gear on the multi-coupling shaft gear, and the teeth with the consistent phase relation in the two gears can be quickly and accurately found out, so that marks are accurately marked on the shaft gears through marking equipment; therefore, workers can conveniently identify the positions of the teeth with consistent phases during subsequent assembly, and assembly is facilitated.

Description

Technical Field

[0001] The utility model relates to a machining device, in particular to a gear machining device, and specifically to a special device for chamfering gears. Background Art

[0002] Gear machining is generally carried out by hobbing or gear shaping equipment. After gear machining is completed, a gear chamfering device is required to chamfer the tooth profile or tooth length of the gear to remove burrs and improve the quality of the gear.

[0003] A shaft gear refers to a mechanical part that supports a rotating part and rotates with it to transmit motion, torque or bending moment. When multiple gears are arranged in parallel on a shaft, it is a multi-shaft gear, and the most common ones are double-shaft gears and triple-shaft gears.

[0004] Taking a double-shaft gear as an example, the number of teeth of the two gears may be the same or different. Generally, when machining a double gear, there is no requirement for the phase relationship of the teeth on the two gears. However, in some cases with special assembly requirements, it is required to keep the phase relationship of at least one tooth in the two gears consistent (that is, the tooth top positions of a pair of teeth in the two gears coincide in the axial positive projection direction). When the number of teeth of the two gears is the same, the phase relationship of each tooth on the two gears can be kept consistent. When the number of teeth of the two gears is different, at least one tooth in the two gears is required to have a consistent phase relationship, and in the assembly, it is necessary to mark this tooth with a consistent phase relationship for subsequent convenient identification and assembly.

[0005] The existing method is to control the processing program to control the phase relationship of one tooth in the two gears to meet the requirements. However, after the shaft gear machining is completed, a series of processing such as heat treatment and chamfering is still required. During subsequent assembly, it is necessary to further confirm the positions of these two teeth with consistent phase relationships on the shaft gear and mark them, and it is relatively difficult to determine the positions. Summary of the Utility Model

[0006] In order to solve the problem of marking the position of a tooth with a consistent phase relationship in a multi-shaft gear with a pair of teeth having a consistent phase relationship mentioned in the background art, the technical solution adopted by the present invention is:

[0007] A multi-shaft gear chamfering device includes a base. On the base, a rotary table is provided that can install a multi-shaft gear and drive the multi-shaft gear to rotate around its axis. On the base, a chamfering head is provided that can move along the axial and radial directions of the multi-shaft gear. A tooth alignment switch that can detect the tooth phases of each gear on the multi-shaft gear is also provided, as well as a marking device that can mark on the multi-shaft gear.

[0008] Further, the marking device is a drilling device or a laser marking machine.

[0009] Further, the marking device can move along the axial and radial directions of the multi-shaft gear.

[0010] Further, the tooth alignment switch is a proximity switch or a laser rangefinder.

[0011] Further, the tooth alignment switch can move along the axial and radial directions of the multi-shaft gear.

[0012] Further, a center point for positioning the multi-shaft gear is also provided.

[0013] By adopting the above technical solution, the phase of each tooth in each gear on the multi-shaft gear is detected by the tooth alignment switch in the gear chamfering machine, and the teeth with consistent phase relationships in two gears can be quickly and accurately found, so that marks can be accurately made on the shaft gear by the marking device, so that workers can identify the positions of the teeth with consistent phase during subsequent assembly, which is convenient for assembly. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of Embodiment 1 of the chamfering machine;

[0015] Figure 2 It is a schematic structural diagram of Embodiment 2 of the chamfering machine;

[0016] Figure 3 It is a schematic diagram of the tooth finding process of the detection unit;

[0017] Figure 4 It is a schematic diagram of the marking by the marking device. Detailed Embodiments

[0018] As Figure 1 shown, the chamfering machine includes a base 1, and a rotary worktable 2 is arranged on the base 1. The rotary worktable 2 is used to install the multi-shaft gear and can drive the multi-shaft gear to rotate around its axis for chamfering processing.

[0019] A column 7 is provided on the base 1 for setting an adjustable chamfering head 3. Specifically, a slide plate 8 that can drive the chamfering head 3 to move along the Z direction (i.e., the axial direction of the multi-shaft gear) is provided on the column 7, and a slide table 9 that can drive the chamfering head 3 to move along the X direction (i.e., the radial direction of the multi-shaft gear) is provided on the slide plate 8. The above-mentioned slide plate 8 and slide table 9 are driven by a motor and a lead screw to move, thereby driving the chamfering head 3 to move. The chamfering head 3 is a power head with a cutter-like structure, and thus chamfering operations on the gear tooth profile or tooth length can be achieved during the movement. Specifically, through the combined movement formed by the rotation of the rotary table 2 and the movement of the slide table 9 in the X direction, chamfering processing of the gear tooth profile is realized; through the movement of the slide plate 8 in the Z direction to drive the chamfering head 3 to move along the tooth length direction, chamfering processing of the tooth length is realized. The chamfering head 3 itself can also be adjusted in angle around the S axis. On the one hand, the chamfering angle can be controlled, and on the other hand, in this embodiment, by adjusting the angle of the chamfering head 3, chamfering processing of the bottom tooth profile of the gear can be carried out. To facilitate the positioning of the shaft gear and increase its stability, a center point 6 that can move along the Z direction is also provided on the column 7. The center point 6 can be abutted against the center positioning hole on the end face of the shaft gear, and cooperate with the rotary table 2 to make the shaft gear more stable during rotation.

[0020] To further improve the chamfering efficiency, as Figure 2 shown in the chamfering machine embodiment, a pair of adjustable chamfering heads 3 are provided on the column 7. The setting method of the chamfering heads 3 is the same as that in the embodiment and will not be elaborated here. Both of these two chamfering heads 3 can move along the Z direction and can move in the X and Y directions respectively. Such a setting can improve the chamfering efficiency, that is, the chamfering of both sides of a gear along the tooth profile can be carried out simultaneously by the two chamfering heads 3, or chamfering processing of two gears can be carried out simultaneously.

[0021] The basic structure of the common chamfering machine is introduced above. All specifications and structural forms of gear chamfering machines are not listed here. The present invention makes further improvements based on the chamfering machine that can chamfer multi-shaft gears. Those skilled in the art can apply the improved parts in the present invention to existing chamfering machines to solve the technical problem of marking on multi-shaft gears, and all should be within the protection scope of this technical solution.

[0022] Based on the above existing chamfering machine, the technical solutions that make technical contributions will be further described in detail below, so that those skilled in the art can know how to set corresponding devices in the chamfering machine to achieve marking on teeth with the same phase of multi-shaft gears.

[0023] As Figure 1 and Figure 2 shown, a marking device 5 is provided in the above-mentioned chamfering machine. The marking device 5 is a drilling device or a laser marking machine, etc., which can mark on the shaft gear.

[0024] In order to find out the positions of the teeth with the same phase on two gears of a multi-shaft gear, a tooth alignment switch 4 is also provided in this chamfering machine. The tooth alignment switch 4 can be a proximity switch or a laser rangefinder.

[0025] The method for detecting the teeth with the same phase is as follows: As Figure 3 shown, let the tooth alignment switch 4 approach one of the gears of the multi-shaft gear, and the rotary table 2 starts to drive the shaft gear to rotate one circle. During the rotation of the gear, the tooth alignment switch 4 can detect the phase information of each tooth according to the signal change (which can be understood as the angular information of each tooth). The other gear detects the phase information of each tooth in the same way. Thus, by comparing the phase information of each tooth on the two gears, the positions of the teeth in the same phase can be determined. Then, the rotary table drives the shaft gear to rotate to a specified angle according to the determined phase information, so that the teeth with the same phase on the shaft gear are facing the marking device as Figure 4 shown. Then, start the marking device 5 to mark on the shaft gear at the position D as Figure 3 shown (this position is only for illustration, and a position that does not affect the performance of the shaft gear and is convenient for observation can also be selected for marking).

[0026] To ensure that the marking position does not affect the quality and performance of the shaft gear, generally, the marking position is set on the shaft near the non-working position of the gear. Since the marking parts of shaft gears with different specifications are different, it is best to make the marking device 5 move in the Z direction so that it can mark at a more appropriate position on the shaft gear. For example, in the embodiments as Figure 1 and Figure 2 shown, the marking device 5 is set on the slide plate 8, and the slide plate drives the marking device 5 to move in the Z direction. Or a separate guide rail or lifting platform is set to install the marking device 5 to drive its movement in the Z direction.

[0027] To avoid the marking device 5 interfering with the chamfering process during chamfering, when marking on the shaft gear, the marking device 5 is brought close to the shaft gear for easy marking, and after marking is completed, the marking device 5 needs to be moved away from the shaft gear to reduce the impact on the chamfering process. Therefore, as Figure 1 and Figure 2 shown, a translation guide rail 10 is also provided to install the marking device 5, and the marking device is driven to move by a motor and a lead screw to make it close to or away from the shaft gear.

[0028] Similarly, to avoid the tooth alignment switch 4 interfering with the chamfering process during chamfering, a movable method is also used to make it close to or away from the shaft gear. When identifying the tooth top position, it is close to the shaft gear, and after completion of the identification, it is moved away from the shaft gear. As Figure 1 and Figure 2In this embodiment, the above function is achieved by arranging an electric cylinder 11 on the slide plate 8 to drive the tooth alignment switch 4 to approach or move away from the gear. Moreover, by moving the slide plate 8 in the Z direction, the tooth alignment switch 4 can also detect the phase of the teeth of different gears on the shaft gear. Similarly, for the tooth alignment switch 4, a lifting and translation mechanism can be separately arranged to achieve the functions of detecting different gears and avoiding them.

[0029] As described above, when the gear chamfering machine performs tooth profile machining, it needs to feed along the outer contour of the gear. In this embodiment, the tooth profile chamfering is achieved by controlling the rotation of the rotary table 2 and the movement of the slide 9 through a numerical control program. By inputting the parameters of the gear and knowing the starting position of the tool, the tool can move along the specified path to achieve chamfering. In this embodiment, when the starting position point needs to be obtained, it can be obtained through the tooth alignment switch 4, that is, in the numerical control program, the starting position is agreed to start from the tooth top position. When the tooth top position is detected by the tooth alignment switch 4, the machining can start.

[0030] Therefore, it can be seen that in the embodiment given here, the tool path of the chamfering head 3 is controlled by a numerical control program. Therefore, on the one hand, the tooth alignment switch 4 serves the marking device 5 to find teeth with the same phase, and on the other hand, it can also serve the chamfering head 3 to find the tooth top position to determine the tool feed position.

[0031] In an existing chamfering machine, there is also a method of chamfering gears by profiling. During chamfering, the chamfering head is driven by a profiling head to chamfer along the gear contour. In this kind of chamfering machine, the above-mentioned marking device 5 and tooth alignment switch 4 can also be adapted. The tooth alignment switch 4 is only used to serve the marking device 5 to find teeth with the same phase, and the chamfering head 3 does not need to determine the tool feed position through the tooth alignment switch 4. Therefore, both the marking device 5 and the tooth alignment switch 4 can be driven to work and move by independent lifting devices and translation mechanisms.

Claims

1. A multi-axis gear chamfering device, comprising a base (1), a rotary table (2) capable of mounting the multi-axis gear and driving the multi-axis gear to rotate about its axis is arranged on the base (1), a chamfering head (3) capable of moving along the axial direction and radial direction of the multi-axis gear is arranged on the base (1), and the characteristics are: A tooth alignment switch (4) capable of detecting the tooth phase of each gear on the multi-axis gear and a marking device (5) capable of marking on the multi-axis gear are also provided.

2. The multi-axis gear chamfering device according to claim 1, characterized in that: The marking device (5) is a drilling device or a laser marking machine.

3. A multi-axis gear chamfering device according to claim 1 or 2, characterized in that: The marking device (5) is capable of moving axially and radially along the multi-axis gear.

4. The multi-axis gear chamfering device according to claim 1, characterized in that: The tooth switch (4) is a proximity switch or a laser rangefinder.

5. A multi-axis gear chamfering device according to claim 1 or 4, characterized in that: The tooth switch (4) can move axially and radially along the multi-axis gear.

6. The multi-axis gear chamfering device according to claim 1, characterized in that: A top point (6) for positioning the multi-axle gear is also provided.

Images