31results about How to "Precise hole position" patented technology

The invention relates to a manufacturing method of a power distribution switch cabinet. The manufacturing method uses bending and tapping equipment, the bending and tapping equipment comprises a base, a feeding and bending device and an alignment and tapping device, the feeding and bending device is arranged at the upper end of the base, and the alignment and tapping device is arranged at the rear side of the upper end of the base. According to the manufacturing method, when the pressure is maintained after a plate is bent, a drilling device is used for drilling and tapping the bent edge of the plate, and the bending, pressure maintaining and drilling and tapping operations are integrated into one process, so that the production time of the power distribution cabinet is saved to a great extent, the problem of low production efficiency of the power distribution cabinet is solved, meanwhile, in the pressure maintaining operation, the plate is clamped and fixed in a high-strength mode, and therefore the hole position for hole forming at the moment is more accurate.

The application provides a device for ensuring the coaxiality of multiple lug holes, including a positioning tool and a U-shaped fixture; the hole position of a single lug hole is determined by fitting the positioning tool and the positioning surface of the part, and the U-shaped fixture is used to clamp the parts and Positioning the tooling, tightening the bolts, fixing the hole positions, and making holes by positioning the guide holes on the tooling. When making the coaxial holes of the multi-tabs, the coaxiality of the multi-tab holes can be realized by selecting the corresponding positioning surface on the part and moving the device for clamping. In the present application, by selecting the corresponding positioning surface on the part, and clamping with a translation device, the coaxiality of the multi-tab holes is realized, the positioning is accurate, the operation is simple, and it is easy to realize, and a plurality of coaxial guide holes can be correspondingly arranged at different positions, saving the cost of Special tooling is used, which reduces costs and improves efficiency.

The invention relates to a method and a device for simultaneous drilling and reaming processing of a crankshaft and a flywheel of a marine low-speed diesel engine. A portable device consisting of a light hole drilling machine, a tool setting device and a cutter is adopted and mounted on the crankshaft through an engine base, a mounting plate and other mounting components; the method comprises the steps as follows: firstly, the tool setting device and a sustain-head bolt are used for ensuring the cutting feed direction and the coaxiality and the parallelism of the axial lines of simultaneous drilling and reaming processing holes, then, a corresponding cutter is selected according to the sizes of the simultaneous drilling and reaming processing holes, the amount of feed and the rotary speed of the cutter are adjusted, and the processing is performed. After each cutting, the degree of finish and the circumference of each hole are checked, if necessary, the cutter is replaced for cutting until all projects reach the standard, and processing is performed until all holes meet the quality requirements. The method and the device for simultaneous drilling and reaming processing of the crankshaft and the flywheel of the marine low-speed diesel engine have the advantages of small occupied area, portability, simplicity in operation, low cost, ensured accuracy, high universality and the like and can be used for simultaneous drilling and reaming processing of the crankshaft, the flywheel and other simultaneous drilled and reamed parts.

The invention relates to a method for punching multiple holes on a square tube, which comprises the following steps that: a workpiece is put into a mould; a punch downward punches an upper hole and then continues to downward punch a lower hole; when the punch is downward, scraps of the upper hole are pressed to an outer die by the punch in front of the punch heading direction; and the scraps of the upper hole and lower scraps are separated from the workpiece together. A device for punching the multiple holes on the square tube mainly comprises the punch, an inner die, the outer die, an upper mold plate, a lower mold plate, supporting pieces, positioning pieces and the like, wherein the workpiece is arranged between the upper mold plate and the lower mold plate; the inner die is arranged in the workpiece; and both sides of the workpiece are provided with the positioning pieces. When the punch is downward, the scraps of the upper hole are pressed to the outer die by the punch in front of the punch heading direction, and the scraps of the upper hole and the lower scraps are separated from the workpiece together. The positioning pieces on both sides are rollers, and roller shafts are the supporting pieces. The method and the device multiply improve the hole processing efficiency, and can be used for punching holes on circular tubes and the square tubes, and the hole position is accurate.

The invention provides a device for guaranteeing coaxiality of multiple lug piece holes. The device comprises a positioning tool and a U-shaped clamp. The positioning tool is attached to the positioning face of a part to determine the hole position of a single lug piece hole, the U-shaped clamp is used for clamping the part and the positioning tool, bolts are fastened, the hole positions are fixed, and hole forming is achieved through a guide hole in the positioning tool. When a multi-lug-piece coaxial hole is manufactured, the corresponding positioning face on the part is selected, and a moving device is used for clamping, so that the coaxiality of the multiple lug piece holes can be realized. By selecting the corresponding positioning face on the part, the device is horizontally moved for clamping, coaxiality of the multiple lug piece holes is achieved, positioning is accurate, operation is easy, implementation is easy, the multiple coaxial guide holes can be correspondingly formed in different positions, special tools are saved, cost is reduced, and the efficiency is improved.

The invention discloses a high-efficiency numerical control six-sided drilling machine, which comprises a frame (1), a gantry frame (2) is provided in the middle of the frame (1), and feeding conveying devices are respectively provided on both sides of the frame (1). (3) and the discharge conveying device (4), the feed conveying device (3) includes a group of parallel rollers (31), the discharge conveying device (4) is set the same as the feed conveying device (3); the feed conveying The frame (1) on one side of the device (3) is equipped with an information scanning device (13), a feed flat support device (33), a long side clamping device (5), a short side clamping device (6), a board Part grabbing device (7) and short side positioning device (8), the middle part of the frame (1) is equipped with a traverse table device (10), a plate side leaning device (9), an upper punching device (11) and Lower punching device (12). The invention has the advantages of improving the degree of automation, working efficiency and drilling precision, reducing labor intensity, and being safe and efficient.