CN100506445C - Special machine tool for pipe fitting flange drilling - Google Patents

Abstract

The invention relates to a tube flange drill machine, which comprises support, mechanical transmitter, clamper, hydraulic system, and electric system, wherein it also comprises multi-axle power head with main axle box at the middle plate of support; a tower gear group on the transmission axle in main axle box with several active wheels on the transmission axle; several planet wheel symmetry distributed on the circumference of active wheels to mesh active wheels; several main axles on the planet wheels; the transmitter drives the main transmission axle via tower gear group to drive the main axles of planet wheels to rotate. The invention can process several holes at one time, with high efficiency and quality.

Description

Special machine tool for pipe fitting flange drilling

technical field

The invention relates to machine tool technology, in particular to a special machine tool equipment for drilling flanges of pipe fittings.

Background technique

Drilling machines commonly used in the pipe fitting flange drilling method of the prior art are such as: Z32K, Z3050, Z3080 radial drilling machines, and the flange holes are processed with a single hole of the drilling die. The processing method of the prior art has the following disadvantages:

The clamping parts are clamped and loosened by manual operation, and the position must be corrected manually, which increases the labor intensity of the operator, and because this kind of processing, the combination of the drilling template and the workpiece is guaranteed by the operator's work experience and technology , so the position error of drilling is relatively difficult to guarantee, resulting in larger correction errors and increased auxiliary time.

Since the existing technology is to process single holes sequentially, the rocker arm is moved to the position of another hole after one hole is completed. In this way, when the position is found, the drill bit collides with the drill sleeve, and the friction is serious, which is easy to wear the drill bit and the drill sleeve. The sleeve will reduce the service life and increase the auxiliary time when moving to find the correct position.

Contents of the invention

The technical problem to be solved by the present invention is to provide a special machine tool for drilling flanges of pipe fittings, which realizes one-time multi-hole processing of flanges of pipe fittings, and improves work efficiency and drilling quality.

In order to achieve the above-mentioned purpose, the special machine tool for drilling flanges of pipe fittings provided by the present invention includes frame parts, electromechanical transmission system, fixture parts, hydraulic system, and electrical system. It is characterized in that the machine tool also includes:

A multi-axis power head assembly, the multi-axis power head assembly includes:

a headstock mounted on the middle plate of the frame member;

A tower-shaped gear set installed on the main transmission shaft in the headstock; the tower gear set further includes: a plurality of driving wheels installed on the main transmission shaft in the headstock;

a plurality of planetary wheels, symmetrically distributed on the outer circumference of the plurality of driving wheels and meshed with the plurality of driving wheels; and

A plurality of main shafts are respectively installed on the planetary gears;

The electromechanical transmission system drives the main drive shaft of the headstock, and the main drive shaft sequentially drives the main shaft on the plurality of planetary gears to rotate through the tower gear set.

The above special machine tool for pipe flange drilling is characterized in that the multi-axis power head part also includes a reduction transmission gear set, which is installed in the lower transmission box of the headstock, and the motor of the electromechanical transmission system is connected through a V-belt The reduction gear set is connected to the main transmission shaft of the headstock.

The special machine tool for drilling flanges of pipe fittings above is characterized in that the fixture components include:

two clamping levers;

Two clamping oil cylinders are driven by a hydraulic system and respectively connected to the two clamping levers;

A drilling formwork is installed on the top plate of the frame body part;

A positioning plate is positioned and installed on the drilling template with the positioning concave table hole of the drilling template.

The special machine tool for drilling flanges of pipe fittings is characterized in that the driving wheels are three large, medium and small gears arranged in a tower shape.

The above special machine tool for flange drilling of pipe fittings is characterized in that there are eight planetary gears symmetrically distributed on the outer circumference of the large driving wheel and meshing with the large driving wheel.

The special machine tool for drilling flanges of pipe fittings above is characterized in that there are six planetary gears symmetrically distributed on the outer circumference of the middle driving wheel and meshing with the middle driving wheel.

The special machine tool for drilling flanges of pipe fittings above is characterized in that there are four planetary gears symmetrically distributed on the outer circumference of the small driving wheel and meshing with the small driving wheel.

The special machine tool for drilling flanges of pipe fittings is characterized in that the main shaft and the drill bit are connected through a socket, and the upper center of the socket is provided with a Morse taper hole that is connected with the taper shank of the drill bit.

The special machine tool for drilling flanges of pipe fittings above is characterized in that the socket and the main shaft are connected by a rectangular spline and a centering diameter.

The above-mentioned special machine tool for drilling flanges of pipe fittings is characterized in that cylindrical pins are also installed on the centering diameter.

Compared with the prior art, the structure of the multi-axis drilling power head of the present invention reduces the complex structure of multi-stage gear transmission by using the tower-shaped gear set transmission on the same main shaft, and also increases the transmission efficiency, so that the processing technology and assembly of parts Processes are simpler.

Using the special machine tool equipment of the present invention realizes the processing of flange holes with three different hole moments, hole diameters, and hole numbers on one machine tool, effectively solving the problem of low work efficiency caused by single-machine single-hole processing of pipe fitting flange holes. High strength, poor drilling quality and other shortcomings.

Description of drawings

Fig. 1 is the general schematic diagram of the combined machine tool for processing pipe fitting flange holes of the present invention;

Fig. 2 is the spindle box transmission figure of processing combination machine tool of the present invention;

Fig. 2A is a partial enlarged view of A in Fig. 2;

Fig. 3 is the fixture component figure of drilling machine tool of the present invention;

Fig. 4 is a top view schematic diagram of the distribution of the tower gear set of the present invention;

Fig. 5 is a schematic diagram of the headstock installation of the multi-axis power head of the present invention.

Detailed ways

The technical scheme of the present invention will be described in detail below in conjunction with the accompanying drawings.

The present invention provides a special machine tool for drilling porous flanges of pipe fittings. Referring to Fig. 1 and Fig. 2, the special machine tool mainly includes: fixture part 1, frame body part 2, hydraulic system 3, electromechanical transmission system 4, multi-axis The power head component 5, the multi-axis power head 5 further includes: a main shaft box 51, a main transmission shaft 52, a tower gear set 53, and the tower gear set further includes three driving wheels 531 (large) and 532 (middle) , 533 (small), and the planetary gear 54 that is symmetrically distributed on the outer circumference of the three driving wheels and meshed with it and the drilling main shaft 55 installed on the planetary gear, the rotation of the drilling main shaft 55 (main movement) is controlled by the electromechanical system The reduction gear group 512 of the lower transmission box 511 of the main shaft box 51 through the transmission of the V-belt pulley is transmitted to the main drive shaft 52 through deceleration transmission, and the tower gear group 53 on the main drive shaft 52 passes through three driving wheels 531, large, medium and small. 532, 533 are sequentially transmitted to a plurality of planetary wheels 54 meshed with the driving wheel, and then drive the main shafts of each planetary wheel to rotate as the main movement.

Referring again to FIG. 2 and FIG. 5 , the frame body part 2 includes a top board 21 , a middle board 22 and four columns 23 . The spindle box 51 is installed on the middle plate 22 of the machine frame body parts, and the middle plate 22 is guided by the four columns 23 and the linear rolling bearing 24 to complete the drilling and cutting work through the rising and falling movement of the oil cylinder of the main feed. The consistency of the lifting speed of the main oil cylinder (feed oil cylinder) is relatively strict, otherwise the actions on both sides are inconsistent, and the center position of the main shaft 55 and the center position of the drilling template 13 are deviated due to the gap between the guide column 23 and the linear rolling bearing 24. And can not carry out drilling, so the lifting speed (fast forward, work forward) of main oil cylinder should be adjusted to minimum error.

With reference to Fig. 3, described fixture part 1 comprises clamping lever 11 and clamping oil cylinder 12, drilling template 13, positioning disk 14, and this drilling template 13 is installed on the top plate 21 of frame body part 2, and positioning disk 14 then uses drilling template The location of the positioning concave table hole is installed on the drilling template 13. The parts are positioned and installed on the drilling template 13 with the positioning disk 14, and the clamping lever 11 performs clamping and loosening actions under the drive of the clamping oil cylinder 12 to complete the clamping and loosening actions of the parts.

With reference to Fig. 2 A, the cooperation of the main shaft 55 and the drill bit 56 is completed through the sleeve 57, the sleeve 57 and the main shaft 55 are matched by a rectangular spline 58 and a centering diameter 59, and then a cylindrical pin 60 is housed on the centering diameter to prevent two Or move axially and increase the torque of the sleeve, the upper center of the sleeve is a Morse taper hole, which is connected with the casing and the taper shank of the drill bit to complete the connection and assembly of the drill bit and the main shaft. The rectangular spline and the main shaft can be of an integrated structure, and directly cooperate with the casing with the Morse taper hole to complete the matching connection between the main shaft and the taper shank of the drill bit. This kind of connecting spindle structure has good rigidity and small centering deviation.

With reference to Fig. 4, in the present embodiment, there are eight planetary wheels that are symmetrically distributed on the outer circumference of the large driving wheel and meshed with the large driving wheel, and the drill bit that the main shaft is installed on the eight planetary wheels can be selected 12 "or 10"; there are six planetary wheels that are symmetrically distributed on the outer circumference of the middle driving wheel and meshed with the middle driving wheel, and the drill bit matched with the main shaft installed on the six planetary wheels can be selected as 8" or 6"; There are four planetary wheels that are symmetrically distributed on the outer circumference of the small driving wheel and meshed with the small driving wheel, and the drill bit that the main shaft is installed on the four planetary wheels can choose 4 "or 3"; by replacing the clamping The lever and positioning plate are used to complete the drilling of flange holes of different pipe fittings, realizing that three flange holes with different hole torques, hole diameters and hole numbers can be processed on one machine tool.

The hydraulic system is composed of fuel tank, accumulator, variable vane pump, oil pump motor, electromagnetic reversing valve, two-way throttle valve, pressure reducing valve, hydraulic control valve, one-way throttle valve, pressure relay, electric speed control valve, wind Cooler, integrated block, oil filter and other components, drive the clamping cylinder and feed cylinder to perform various required actions such as fast forward and work forward, and complete the cutting process of the workpiece. The requirements for the action of the two clamping cylinders are basically Consistent, to be completed by adjusting the two-way and one-way speed control valve. For the pressure relay of this hydraulic system, when the clamping force of the clamping oil cylinder is less than 4MPa, other actions cannot be started. Only when the clamping pressure is guaranteed can the cutting work be carried out. This is a safe operation. Damage to the drill bit or damage to the machine tool due to movement will also cause danger to the operator. The hydraulic system is not the main purpose of the present invention, so its structural drawings are not shown.

Of course, the special machine tool equipment for multi-axis drilling of pipe fitting flanges also includes an electrical system, which is composed of a power distribution cabinet and an operation button box, and is equipped with "adjustment", "run", and "stop" buttons. It is more convenient to make the main motor do inching operation for checking the tool and loading and unloading the drill bit to find the loading and unloading groove. The oil cylinder has been designed with the program of "point forward", point retreat", which facilitates the measures that the drill bit encounters a hard point and slowly advances in the feed motion. The electrical system is not the main purpose of the present invention, so it is not shown Its structural drawings.

The special machine tool for multi-axis drilling of pipe fitting flanges provided by the present invention can complete the processing of each hole of cast pipe fittings, polygonal flanges, and circular flanges at one time, and solve the work caused by single-machine single-hole processing of flange holes Low efficiency, high labor intensity of workers, poor drilling quality and other shortcomings.

Although the present invention has been disclosed above with a preferred embodiment, it is not intended to limit the present invention. Those skilled in the art can make various corresponding modifications according to the present invention without departing from the spirit and essence of the present invention. Changes and modifications, but these corresponding changes and modifications should belong to the scope of protection of the appended claims of the present invention.

Claims (10)

1, a kind of lathe dedicated for boring on pipe fittings flange comprises support body parts, Mechanical ﹠ Electrical Transmission system, clamp member, hydraulic system, electrical system, it is characterized in that this lathe also comprises:

One multiaxis power head part, this multiaxis power head part comprises:

One main spindle box is installed on the middle plate of described support body parts;

One turriform gear train is installed on the interior final drive shaft of described main spindle box; This turriform gear train further comprises: a plurality of driving wheels are installed on the interior final drive shaft of described main spindle box;

A plurality of planetary gears, be symmetrically distributed in described a plurality of driving wheel excircle and with this a plurality of driving wheels engagement; And

A plurality of main shafts are installed in respectively on the described planetary gear;

The final drive shaft of the described main spindle box of described Mechanical ﹠ Electrical Transmission system drive, this final drive shaft drives main axis rotation on described a plurality of planetary gear successively by described turriform gear train.

2, lathe dedicated for boring on pipe fittings flange according to claim 1, it is characterized in that, described multiaxis power head part also comprises the under drive gear group, be installed in the underdrive case of described main spindle box, the motor of described Mechanical ﹠ Electrical Transmission system connects described train of reduction gears through V belt, and described under drive gear group connects the final drive shaft of described main spindle box.

3, lathe dedicated for boring on pipe fittings flange according to claim 1 is characterized in that, described clamp member comprises:

Two clamp lever;

Two clamping cylinders are driven and are connected described two clamp lever respectively by hydraulic system;

One bushing plate is installed on the top board of described support body parts;

One positioning disk, with concave station hole, the location location and installation of bushing plate on bushing plate.

4, lathe dedicated for boring on pipe fittings flange according to claim 1 is characterized in that, described driving wheel is large, medium and small three and is the gear that turriform distributes and installs.

5, lathe dedicated for boring on pipe fittings flange according to claim 4 is characterized in that, described be symmetrically distributed in described big driving wheel excircle and with the planetary gear of this big driving wheel engagement be eight.

6, lathe dedicated for boring on pipe fittings flange according to claim 4 is characterized in that, described be symmetrically distributed in described in the driving wheel excircle and with this in the planetary gear of driving wheel engagement be six.

7, lathe dedicated for boring on pipe fittings flange according to claim 4 is characterized in that, described be symmetrically distributed in described little active opinion excircle and with the planetary gear of this little driving wheel engagement be four.

According to claim 1,5,6 or 7 described lathe dedicated for boring on pipe fittings flange, it is characterized in that 8, described main shaft and drill bit are connected by connecing cover, the described central upper portion that connects cover is offered the mohs tapered bore that the taper shank with drill bit is connected.

9, lathe dedicated for boring on pipe fittings flange according to claim 8 is characterized in that, the described cover that connects is to be connected by rectangular spline and centering diameter with described main shaft.

10, lathe dedicated for boring on pipe fittings flange according to claim 9 is characterized in that, on the described centering diameter straight pin is housed also.

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