CN202763660U - Right-angle grinding head of numerical-control boring and milling machine - Google Patents

Abstract

A right-angle grinding head for a CNC boring and milling machine, which includes a bracket, one end of the bracket is provided with a connecting seat, the other end of the bracket is provided with a right-angle head, and the joint between the right-angle head and the bracket is provided with a worm gear and a worm, and the worm gear mechanism can control the relative movement of the right-angle head The bracket rotates within the angle range of 0-360 degrees. The vertical bracket part of the right-angle head is equipped with a grinding wheel spindle through upper and lower diagonal contact ball bearings. One end of the grinding wheel spindle is equipped with a frequency conversion speed regulating three-phase motor, and the other end of the grinding wheel spindle is equipped with a bowl. shaped grinding wheel. The utility model can realize the conversion of the boring and milling machine and the surface grinding machine very conveniently and quickly, so that one machine tool can easily replace the processing performance of the two types of machine tools, and not only solves the problem of part processing accuracy errors caused by multiple clamping , Improve the machining accuracy and production efficiency of the parts, so that the investment of the enterprise can be saved without adding heavy and super heavy surface grinders.

Description

Right-angle grinding head for CNC boring and milling machine

technical field

The utility model relates to a right-angle grinding head of a numerical control boring and milling machine, in particular to a right-angle grinding head of a heavy and super heavy numerical control boring and milling machine. the

Background technique

In the prior art, a boring and milling machine can generally only realize the functions of a boring and milling machine, and can rarely realize the processing performance of the two machine tools, and cannot realize one-time clamping of parts, and realize boring, milling and grinding (that is, once clamping, just It can realize rough machining, finishing machining and ultra-finishing machining of the same part). Even if the two functions are realized, the parts processing accuracy error caused by multiple clamping is large, which reduces the processing accuracy of the parts and reduces the production efficiency, thereby greatly increasing the investment of the enterprise. the

Contents of the invention

The technical problem to be solved by the utility model is to provide a right-angle grinding head for a CNC boring and milling machine in view of the above-mentioned deficiencies in the prior art. It can also realize the grinding of large and super-large parts (such as more than 100 tons of rolling steel brackets), up, down, left, and right planes and step planes. One machine tool can conveniently realize the processing performance of two kinds of machine tools; it can also realize one-time installation. Clamp parts to realize boring, milling and grinding. the

The purpose of this utility model is achieved in that:

A right-angle grinding head for a CNC boring and milling machine, which includes a bracket, one end of the bracket is provided with a connecting seat, the other end of the bracket is provided with a right-angle head, and the joint between the right-angle head and the bracket is provided with a worm wheel and a worm, and the worm gear mechanism can control the relative movement of the right-angle head The bracket rotates within the angle range of 0-360°. The vertical bracket part of the right-angle head is equipped with a grinding wheel spindle through upper and lower diagonal contact ball bearings. One end of the grinding wheel spindle is equipped with a frequency conversion speed regulating three-phase motor, and the other end of the grinding wheel spindle is equipped with a bowl. shaped grinding wheel.

A chuck base is provided between the grinding wheel main shaft and the bowl-shaped grinding wheel, and the bowl-shaped grinding wheel is fixed on the chuck base through a balance flange arranged below the chuck base. the

A balance block is arranged on the above-mentioned balance flange. the

An adjustment flange is provided at the lower end of the vertical support part of the above-mentioned right-angle head, a fastening nut is provided at the lower part of the adjustment flange, and a washer is provided between the adjustment flange and the lower diagonal contact ball bearing. the

An O-ring is provided between the gasket and the adjusting flange. the

The above-mentioned bracket is provided with a through-type pressure oiling cup, and the through-type pressure oiling cup communicates with the worm gear mechanism. the

A circular scale and a ruler are provided at the connection position between the above-mentioned right-angle head and the bracket. the

The above-mentioned worm is set on the bracket through a tapered roller bearing, one end of the worm is provided with a through-hole flange, the other end of the worm is provided with a blind-hole flange, and the right-angle head is connected with the worm wheel. the

The above-mentioned connection between the bracket and the right-angle head is located in the bracket with a T-shaped block, and the bracket and the right-angle head are fastened by inserting T-shaped fast socket head cap screws. the

The utility model has achieved the following technical effects:

1. The utility model can install the right-angle grinding head on the square ram of the heavy-duty and super-heavy CNC boring and milling machine as conveniently as installing the right-angle milling head, which expands the technological performance of the heavy-duty and super-heavy CNC boring and milling machine: in addition to realizing various large-scale In addition to boring and milling processing of super-large parts; when equipped with a right-angle grinding head, it can also realize grinding of large and super-large parts (such as more than 100 tons of rolling steel brackets), up, down, left, right, and step planes. One machine tool can conveniently realize the processing performance of two types of machine tools; it can also realize the boring, milling and grinding processing of one-time clamping parts (that is, one-time clamping can realize rough machining, finishing machining and ultra-finishing machining of the same part. );

2. The utility model can realize the conversion of the boring and milling machine and the surface grinding machine very conveniently and quickly, so that one machine tool can easily replace the processing performance of the two types of machine tools, and not only solve the processing accuracy of parts caused by multiple clamping The error problem improves the processing accuracy and production efficiency of the parts, so that the investment of the enterprise can be saved without adding heavy and super heavy surface grinders.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described. the

Fig. 1 is the front view (partial section) of the utility model;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is a top view (partial sectional view) of Fig. 1;

Fig. 4 is the sectional view at A-A place of Fig. 1;

Fig. 5 is an enlarged view at B of Fig. 1 .

Detailed ways

As shown in Figure 1-5, a right-angle grinding head for a CNC boring and milling machine includes a bracket 7, one end of the bracket is provided with a connecting seat 2, the other end of the bracket is provided with a right-angle head 4, and the connection between the right-angle head and the bracket is provided with a worm gear 22 and The worm 20 can control the rotation of the right-angle head relative to the support within the angle range of 0-360° through the worm gear and worm mechanism. The vertical support part of the right-angle head is provided with a grinding wheel main shaft 13 through the upper and lower diagonal contact ball bearings 14, and one end of the grinding wheel main shaft is provided with Frequency conversion speed regulation three-phase motor 15, the other end of emery wheel main shaft is provided with bowl-shaped emery wheel 1. the

Preferably, a chuck base 5 is provided between the grinding wheel spindle and the bowl-shaped grinding wheel, and the bowl-shaped grinding wheel is fixed on the chuck base through a balance flange 6 arranged below the chuck base. A balance block 8 is provided on the balance flange. The lower end of the vertical support part of the right-angle head is provided with an adjusting flange 12, the lower part of the adjusting flange is provided with a fastening nut 9, and a washer 11 is provided between the adjusting flange and the lower diagonal contact ball bearing. An O-ring 10 is arranged between the gasket and the adjusting flange. The support is provided with a through-type pressure oiling cup 3, and the through-type pressure oiling cup communicates with the worm gear mechanism. A circular scale 18 and a scale 24 are provided at the connecting position between the right-angle head and the support. The worm is arranged on the support through a tapered roller bearing 21, one end of the worm is provided with a through-hole flange 19, the other end of the worm is provided with a blind flange 23, and the right-angle head is connected with the worm wheel. The joint between the bracket and the right-angle head is located in the bracket and is provided with a T-shaped block 17, and the bracket and the right-angle head are fastened by inserting T-shaped fast socket head cap screws 16. the

The utility model designs a special right-angle grinding head which can be conveniently installed on the square ram of heavy and super heavy CNC boring and milling machines. Before installation, there is no need to scatter any parts on heavy and ultra-heavy CNC boring and milling machines, which is as convenient and fast as installing right-angle milling heads. The three-phase asynchronous motor with frequency conversion speed regulation can meet the grinding speed required by various processes through frequency conversion speed regulation. Through the frequency conversion speed regulation motor, various speeds meeting the requirements of the grinding process are transmitted to the main shaft of the grinding wheel, so that the bowl-shaped grinding wheel installed on the main shaft of the grinding wheel can obtain the same speed, and various grinding speeds meeting the technical requirements can be achieved. The fastening nut 9 can adjust the gap between two pairs of back-mounted angular contact ball bearings, so that the grinding wheel spindle can reach the technical requirements of radial and axial runout ≤ 0.005mm. The hydraulic O-ring 10 plays a role in preventing external dust from entering the inner cavity of the grinding head and the lubricating grease in the inner cavity of the grinding head from leaking out, so as to improve the service life and performance of the grinding head. Loosen 6 socket head cap screws 16, turn the worm screw 20, the grinding head can be adjusted to reach any angle within 0--360°. It can grind the plane at any angle within 0--360°. the

The balance weight 8 is used for static balancing the bowl-shaped grinding wheel. The connecting seat 2 is an important part for the grinding head to be installed on the end face of the square ram of the heavy-duty and super-heavy CNC boring and milling machine and to support the grinding head.

Claims (9)

1. A right-angle grinding head for a CNC boring and milling machine, characterized in that it includes a bracket (7), one end of the bracket is provided with a connecting seat (2), the other end of the bracket is provided with a right-angle head (4), and the connection between the right-angle head and the bracket A worm wheel (22) and a worm (20) are provided, and the right-angle head can be controlled to rotate within the angle range of 0-360° relative to the support through the worm-gear mechanism, and the vertical support part of the right-angle head passes through two pairs of upper and lower angular contact ball bearings (14) inside A grinding wheel main shaft (13) is provided, one end of the grinding wheel main shaft is provided with a frequency conversion speed regulating three-phase motor (15), and the other end of the grinding wheel main shaft is provided with a bowl-shaped grinding wheel (1). 2. The right-angle grinding head of CNC boring and milling machine according to claim 1, characterized in that: a chuck seat (5) is provided between the grinding wheel spindle and the bowl-shaped grinding wheel, and the bowl-shaped grinding wheel is set on the chuck seat The lower balance flange (6) is fixed on the chuck seat. 3. The right-angle grinding head of a CNC boring and milling machine according to claim 2, characterized in that: said balance flange is provided with a balance weight (8). 4. The right-angle grinding head of CNC boring and milling machine according to claim 1 or 2, characterized in that: the lower end of the vertical support part of the right-angle head is provided with an adjusting flange (12), and the lower part of the adjusting flange is provided with a tightening flange. A fixed nut (9), a washer (11) is arranged between the adjusting flange and the lower diagonal contact ball bearing. 5. The right-angle grinding head of a CNC boring and milling machine according to claim 4, characterized in that: an O-ring (10) is provided between the gasket and the adjusting flange. 6. The right-angle grinding head of a CNC boring and milling machine according to claim 1 or 2, characterized in that: said bracket is provided with a straight-through pressure oiling cup (3), and the straight-through pressure oiling cup communicates with the worm gear mechanism. 7. The right-angle grinding head of a CNC boring and milling machine according to claim 1 or 2, characterized in that: a circular scale (18) and a scale (24) are provided at the connection position between the right-angle head and the bracket. 8. The right-angle grinding head of CNC boring and milling machine according to claim 1 or 2, characterized in that: the worm is set on the support through a tapered roller bearing (21), and one end of the worm is provided with a through-hole flange (19), The other end of the worm is provided with a blind hole flange (23), and the right-angle head is connected with the worm wheel. 9. The right-angle grinding head of CNC boring and milling machine according to claim 1 or 2, characterized in that: the connection between the bracket and the right-angle head is located in the bracket with a T-shaped block (17), and the bracket and the right-angle head are inserted into the Fasten with T-type hexagon socket head cap screws (16).

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