CN-116213851-B - Tapping device and application method thereof

CN116213851BCN 116213851 BCN116213851 BCN 116213851BCN-116213851-B

Abstract

The invention relates to the technical field of machining of medium and large castings, in particular to a tapping device with complex product space and limited machine tool machining space. The tapping device comprises a first positioning device, a second positioning device, a locking device, a screw tap and the first positioning device is movably meshed with the second positioning device, the locking device is used for locking the second positioning device and the first positioning device, and the screw tap is fixedly connected to the second positioning device. The invention solves the problems of space interference correction drilling and tapping in the prior art, and provides a space interference correction drilling and tapping device which comprises an arc-shaped positioning and fixing device and a movable tooth-shaped positioning device, so that the drilling and tapping of interference holes with different angles and heights are efficient and reliable.

Inventors

DONG ZHAOPENG
MA WENBAO
MA TAO
WANG YAOBIN

Assignees

共享装备股份有限公司

Dates

Publication Date: 20260505
Application Date: 20230330

Claims (3)

1. The tapping device is characterized by comprising a first positioning device, a second positioning device, a locking device and a screw tap, wherein the first positioning device is movably meshed with the second positioning device, the locking device is used for locking the second positioning device and the first positioning device, and the screw tap is fixedly connected to the second positioning device; the first positioning device is arc-shaped, and a first rack is arranged at the outer end of the arc; one end of the second positioning device is provided with a second rack corresponding to the first rack; the first positioning device is also provided with a T-shaped groove, and the T-shaped groove is parallel to the first rack; a T-shaped bolt is arranged in the T-shaped groove, and the T-shaped bolt can slide in the T-shaped groove; The second positioning device is provided with a connecting hole, and the connecting hole is a threaded hole; the fixing device further comprises a fixing plate, wherein a first through hole and a second through hole are respectively formed in two ends of the fixing plate; The second through hole of fixed plate one end is connected with T type bolted connection, the first through hole of fixed plate other end with the connecting hole passes through bolted connection.
2. The tapping device according to claim 1, wherein the first positioning means is provided with a plurality of fixing holes at an end thereof remote from the first rack.
3. A method of using the tapping device according to claim 2, wherein the method of using comprises the steps of: s1, confirming the position of a space interference hole according to a product; s2, mounting the tapping device at a preset angle, and positioning and fixedly connecting the first positioning device with a product through the fixing hole; s3, fixing the first through hole, the connecting hole and the fixing plate through bolts, so that the fixing plate is fixed on the second positioning device; S4, mounting a T-shaped bolt into a T-shaped groove, mounting and fixing the second positioning device with the first positioning device through a fixing plate, a second through hole, a gasket and a butterfly nut, ensuring the engagement of a first rack and a second rack, and checking verticality and position; S5, installing the screw tap into the sleeve hole, and sleeving the nylon correction sleeve on the handle part of the screw tap, wherein the nylon correction sleeve is in clearance fit with the screw tap; and S6, tapping by a manual twisting rod or drilling by using air.

Description

Tapping device and application method thereof Technical Field The invention relates to the technical field of machining of medium and large castings, in particular to a tapping device with complex product space and limited machine tool machining space. Background In the machining industry of large and medium castings and in the machining process of mechanical parts, the machining efficiency is improved as much as possible and the machining cost is reduced on the premise of ensuring the machining requirement. The difficulty factor is high when the hole is drilled, wok or tapped by spatial interference. In most cases, the BIG accessory tool handle is machined in an angle-changing mode, the BIG accessory at the position of space interference is small in use selection, the diameter limit of a drilling and tapping tool is large, a plurality of tools cannot be used, and the elbow pneumatic drill is adopted for machining, so that the perpendicularity and aperture requirements of holes cannot be met, and the machining quality of products is affected. The hole system of partial products is a through hole, but the counter bore and the tapping are on one side of space interference, the mode of drilling the through hole first and then reversely pulling the counter bore is adopted, so that the partial counter bore can be reversely pulled, the diameter of the through hole is small, the diameter of the counter bore is large, when the depth of the hole belongs to a deep long hole, the machining cannot be directly carried out by using the reverse pulling mode, and in the machining industry, the situation is frequently encountered, and the machining is not the optimal choice from the view of machining resources or from the view of delivery cycle. The bench workers can manually drill or tap by means of dotting, so that the risk of quality problems is increased, the position degree and the perpendicularity cannot be guaranteed by the method, and the risk of dimension out-of-tolerance can be caused. The manual drilling tapping needs positioning and correction, and a spatial interference correction drilling tapping device is designed based on the manual drilling tapping. Disclosure of Invention Based on the above, it is necessary to provide a space interference correction drilling and tapping device for drilling and tapping interference holes with different angles and heights. The tapping device comprises a first positioning device, a second positioning device, a locking device, a screw tap and the first positioning device, wherein the first positioning device is movably meshed with the second positioning device, the locking device is used for locking the second positioning device and the first positioning device, and the screw tap is fixedly connected to the second positioning device. In one embodiment, the first positioning device is arc-shaped, and a first rack is arranged at the outer end of the arc-shaped. In one embodiment, one end of the second positioning device is provided with a second rack corresponding to the first rack. In one embodiment, the first positioning device is further provided with a T-shaped groove, and the T-shaped groove is parallel to the first rack. In one embodiment, the device further comprises a fixing plate, and through holes are respectively formed in two ends of the fixing plate. In one embodiment, a T-shaped bolt is disposed in the T-shaped slot, and the T-shaped bolt is slidable in the T-shaped slot. In one embodiment, the second positioning device is provided with a connecting hole, and the connecting hole is a threaded hole. In one embodiment, the through hole at one end of the fixing plate is connected with the T-shaped bolt, and the through hole at the other end of the fixing plate is connected with the connecting hole through a bolt. In one embodiment, a plurality of fixing holes are formed at one end of the first positioning device, which is far away from the first rack. The application method of the tapping device comprises the following steps: s1, confirming the position of a space interference hole according to a product; s2, mounting the tapping device at a preset angle, and positioning and fixedly connecting the first positioning device with a product through the fixing hole; s3, fixing the positioning holes, the connecting holes and the fixing plates through bolts, so that the fixing plates are fixed on the second positioning device; S4, mounting a T-shaped bolt into a T-shaped groove, mounting and fixing the second positioning device with the first positioning device through a fixing plate, a second positioning hole, a gasket and a butterfly nut, ensuring the engagement of a first rack and a second rack, and checking verticality and position; S5, installing the screw tap into the sleeve hole, and sleeving the nylon correction sleeve on the handle part of the screw tap, wherein the nylon correction sleeve is in clearance fit with the screw tap; and S6, tapping by a manual twisting