CN-120901382-B - Gear alignment positioning device for secondary clamping of slotting inner gear ring

CN120901382BCN 120901382 BCN120901382 BCN 120901382BCN-120901382-B

Abstract

The invention belongs to the technical field of annular gear machining equipment, and in particular relates to a secondary clamping and tooth aligning positioning device for an slotting annular gear, which comprises a base, wherein a clamp is arranged on the base, a positioning sleeve is matched with the clamp through a sliding bearing, and an elastic tooth aligning device is matched with the positioning sleeve; the elastic tooth aligning device comprises a shell, wherein a telescopic shaft is arranged in the shell, two ends of the telescopic shaft are respectively connected with a cylindrical measuring rod and a drawing handle after extending out of the shell, the telescopic shaft in the shell comprises a thick shaft and a thin shaft, a spring is sleeved on the thin shaft, the shell is connected with a turnover assembly, and the turnover assembly comprises a turnover plate and a turnover cylinder. The invention has reasonable structure, can accurately position the annular gear, ensures that the annular gear keeps the same phase when the annular gear is clamped on the gear shaper for multiple times, improves the processing precision, reduces the rejection rate and is beneficial to batch production.

Inventors

XU KEZHONG
YANG XUNYONG
XU QING
HUANG CHUNYA

Assignees

赣州群星机械有限公司

Dates

Publication Date: 20260508
Application Date: 20250815

Claims (4)

1. The secondary clamping and tooth aligning positioning device for the slotting inner gear ring comprises a base, wherein a clamp is arranged on the base; The elastic tooth aligning device comprises a shell, wherein a telescopic shaft is arranged in the shell, two ends of the telescopic shaft are respectively connected with a cylindrical measuring rod and a drawing handle after extending out of the shell, a limiting pin is arranged on the telescopic shaft between the shell and the drawing handle, the telescopic shaft in the shell comprises a thick shaft and a thin shaft, one end of the thin shaft extends out of the shell and is connected with the limiting pin, and a spring is sleeved on the thin shaft; The shell is connected with a turnover assembly, the turnover assembly comprises a turnover plate and a turnover cylinder, one end of the turnover plate is connected with the shell, the other end of the turnover plate is fixedly connected with a connecting shaft, the connecting shaft is rotationally connected with a fixed plate through a bearing, the connecting shaft is connected with the turnover cylinder, and the fixed plate is arranged on the clamp; The fixture comprises a mounting plate, wherein a mounting sleeve is arranged on the mounting plate, and the outer circle of the positioning sleeve is matched with an inner hole of the mounting sleeve through a sliding bearing; The fixture is connected with the base through a fine adjustment assembly, the fine adjustment assembly comprises a positioning plate and a rotating plate, the positioning plate is fixed on the base, a plurality of positioning holes are uniformly formed in the positioning plate along the circumferential direction, the center of the rotating plate is rotationally connected with the center of the positioning plate through a bearing, a positioning pin matched with the positioning holes is arranged on the rotating plate, the mounting plate is fixed on the rotating plate, and the fixing plate is fixed on the mounting plate; the locating sleeve is matched with the pressing device, the pressing device comprises a pressing block, a vertical telescopic rod and a rotating device, one end of the pressing block is matched with the locating sleeve, the other end of the pressing block is connected with the rotating device, and the rotating device is connected with the telescopic end of the vertical telescopic rod.
2. The secondary clamping and tooth aligning positioning device for the slotting ring gear according to claim 1, wherein 21 positioning holes are formed.
3. The secondary clamping and tooth aligning positioning device for the slotting inner gear ring is characterized in that the vertical telescopic rod is a telescopic cylinder or an electric push rod or a hydraulic cylinder.
4. The secondary clamping and tooth aligning positioning device for the slotting ring gear according to claim 1, wherein the rotating device is a 90-degree rotating cylinder or a 90-degree rotating cylinder.

Description

Gear alignment positioning device for secondary clamping of slotting inner gear ring Technical Field The invention belongs to the technical field of annular gear machining equipment, and particularly relates to a secondary clamping and tooth aligning positioning device for an slotting annular gear. Background At present, the domestic common annular gear machining modes comprise three modes of gear shaping, internal broaching and internal scraping, wherein the gear shaping is widely used by equipment, and the prices of the equipment and an internal gear inserting tool are the lowest in the three machining modes, so that the method is widely applied to the annular gear of engineering machinery and the pre-machining mode for grinding the annular gear. However, in the partial ring gear structure, after the internal groove or the tooth side back taper is needed to be formed by slotting the tooth shape of the ring gear, the ring gear is transferred to other equipment for processing the internal groove or the tooth side back taper structure in the next process, and then the internal tooth is processed by a gear slotting machine again so as to eliminate cutting burrs or deformation generated by processing the internal groove or the tooth side back taper, thereby ensuring that the precision of the tooth direction and the tooth shape of the internal tooth meets the requirements. In the processing process flow, how to ensure that the gear shaper cutter is accurately aligned with the tooth groove of the processed and formed inner gear ring becomes a technical difficulty when the inner gear ring is clamped to the gear shaper for the second time. If the tooth groove relative position of the inner tooth ring cannot be ensured to be accurate and consistent each time when the inner tooth ring is clamped on the gear shaping machine clamp for the second time, the batch processing cannot be kept consistent, the original shaped inner tooth can be caused, the inner tooth is cut by a gear shaping cutter in the next time of the slotting processing, namely the phenomenon of tooth disorder is commonly called, and the product is basically scrapped once being cut by mistake, so that the huge loss is caused. In order to solve the problem, laser ranging is mostly adopted for tooth alignment in the prior art, but most numerical control gear shaping machines still adopt cutting fluid to cool in the slotting process at present, and after related lenses are polluted by the cutting fluid in the using process, the misjudgment rate of identification is relatively high, so that the use effect on most numerical control gear shaping machines for wet cutting processing is poor. Therefore, it is necessary to design a gear positioning device for secondary clamping of the slotting inner gear ring. Disclosure of Invention The invention aims to design a gear shaping and cutting annular gear secondary clamping and tooth aligning positioning device which comprises a base, wherein a clamp is arranged on the base, a positioning sleeve is matched with the clamp through a sliding bearing, and an elastic tooth aligning device is matched with the positioning sleeve; The elastic tooth aligning device comprises a shell, wherein a telescopic shaft is arranged in the shell, two ends of the telescopic shaft are respectively connected with a cylindrical measuring rod and a drawing handle after extending out of the shell, a limiting pin is arranged on the telescopic shaft between the shell and the drawing handle, the telescopic shaft in the shell comprises a thick shaft and a thin shaft, one end of the thin shaft extends out of the shell and is connected with the limiting pin, and a spring is sleeved on the thin shaft; The shell is connected with a turnover assembly, the turnover assembly comprises a turnover plate and a turnover cylinder, one end of the turnover plate is connected with the shell, the other end of the turnover plate is fixedly connected with a connecting shaft, the connecting shaft is rotationally connected with a fixing plate through a bearing, the connecting shaft is connected with the turnover cylinder, and the fixing plate is arranged on a clamp. The elastic tooth aligning device fully utilizes the special structure of the inner groove of the inner gear ring or the reserved effective tooth side after the tooth side back taper is processed, the length of the cylindrical measuring rod occupies 80% of the length of the reserved effective tooth side, the cylindrical measuring rod can fully contact the vicinity of the reference circle of the inner gear ring, and after the cylindrical measuring rod is driven by the elastic force of the spring to enter the tooth groove of the inner gear ring, the cylindrical measuring rod is finally positioned against the tooth side of the reference circle of the inner gear ring through sliding contact with the tooth side, so that the inner gear ring of a product to be processed can be accurately fixed at the same phase