CN107263209A - A kind of barrel hole machined Digit Control Machine Tool - Google Patents

Abstract

The invention discloses a numerically controlled machine tool for processing cylinder wall holes, comprising: a numerically controlled turntable and claws. The machining of holes in different circumferential angle directions of the workpiece. The knife rest turntable is installed on two circular guide rails, the screw nut is fixed on the lower end of the knife rest turntable by screws, and the lead screw drives the knife rest turntable to move up and down through the screw nut. The regular polygonal cutter head is mounted on the tool holder turntable through tapered roller bearings and deep groove ball bearings, and a turbine is installed outside the tapered roller bearing, and the turbine is fixedly connected with the cutter head. The third motor is fixed on the upper part of the bearing seat through the opening of the cutter head cover plate. The invention can replace the cutter and the motor according to the size of the hole and the processing method of the hole, and the replacement of the cutter and the motor is convenient. At the same time, the hole processing process is concentrated and the efficiency is high.

Description

A CNC machine tool for processing cylinder wall holes

technical field

The invention belongs to the field of mechanical processing, in particular to a numerically controlled machine tool for processing cylinder wall holes.

Background technique

At present, CNC machine tools are usually designed as a whole, one machine tool handles one process, and the assembly line operation is adopted. The process is relatively loose. The fixed design of each part of the machine tool ensures the stability of the machine tool while losing the flexibility and adaptability of the machine tool. That is, the CNC machine tool has a single function. The problem caused by this is that the factory needs to spend a lot of money when purchasing equipment, and purchase a complete set of equipment, and when the product or current work changes, some equipment cannot function and is idle, resulting in waste of resources.

Contents of the invention

Aiming at the above technical problems, the present invention designs a CNC machine tool for processing cylinder wall holes, which realizes individual configuration of the machine tool and improves the functions of the machine tool.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A CNC machine tool for processing cylinder wall holes, comprising a bed 61, characterized in that: the bed 61 is fixed with a CNC turntable 1 and a horizontal linear motion pair; the workpiece 3 is fixed on the CNC turntable 1 by claws 2, and the CNC turntable 1 drives the workpiece 3 to rotate and index; the claw 2 is fixedly connected with the CNC turntable 1, and rotates with the CNC turntable 1.

The horizontal linear motion pair includes a slide rail 60 and a slide block 59; the slide block 59 is arranged on the slide rail 60, and the slide table 47 is fixedly connected with the slide block 59; connected, one end of the screw mandrel 51 is connected to the first motor 53;

The guide rail 30 may or may not be a circular guide rail, but the manufacturing cost of the circular guide rail is the lowest. The knife rest turntable 4 is installed on two guide rails 30, and the cutter head 19 is installed on the knife rest turntable 4; The cutter head 19 includes a bearing seat 6, a tool spindle 16; Insert this hole and be fixedly connected with the cutter head 19, the third motor 23 is fixed on the upper part of the bearing seat 6 through the opening of the cutter head cover plate 20, and the tool spindle 16 is installed in the opening direction of the bearing seat 6; the upper end of the tool rest turntable 4 includes a Bearing cover 28;

The L-shaped column 31 is fixed on the slide table 47, the lower end of the guide rail 30 is fixed on the slide table 47, and the upper end is inserted into the opening of the horizontal plane of the L-shaped column 31, and the fixed side support unit 63 of the leading screw 35 is installed on the top of the column 31 , axially fixed; the second motor 36 is arranged on the upper part of the column 31 .

The fixed nut 45 of the knife rest rotating disk 4 lower ends, the leading screw 35 controls the knife rest rotating disk 4 to move up and down by the nut 45 of the screw. The cutterhead 19 is a regular polygon, and is mounted on the cutterhead turntable 4 through a tapered roller bearing 44 and a deep groove ball bearing 26 .

The worm gear 43 is installed on the outside of the tapered roller bearing 44, and the worm gear 43 is fixedly connected with the cutterhead 19; The output shaft of the motor 41 is fixedly connected by a shaft coupling 67; the rotary motion of the fourth motor 41 drives the tool holder turntable 4 to rotate through the worm gear 43 to realize tool change.

The above-mentioned CNC machine tool is further characterized in that: the inner hole of the cutter head cover plate 20 is equipped with a deep groove ball bearing 26, the deep groove ball bearing 26 is fixed on the inner hole of the cutter head cover plate 20 by the spring retaining ring 25, and the cutter head cover plate 20 is fixed on the inner hole of the cutter head cover plate 20. On the cutter head 19; the inner thread on the inner hole of the bearing gland 28 is screwed into the outer thread on the upper end of the knife holder turntable 4, and the cutter head cover plate 20, the cutter head 19, and the tapered roller bearing 44 are pressed to the knife by thrust ball bearings 27. The bottom of the frame turntable 4, thereby realizing the axial positioning of the above-mentioned parts.

The horizontal linear motion pair includes 2 slide rails 60 and 4 slide blocks 59 . The fixed side support unit 57 of the leading screw 51 is installed on the upper plane of the bed 61, the leading screw 51 is equipped with the first gear pair of gear one 48, the nut 50 and the leading screw on the left side of the first gear pair of gear one 48 The stepped surface on the 51 realizes that the gear one 48 of the first gear pair is axially fixed on the lead screw 51; the first motor 53 is installed on the bed 61, and the gear two of the first gear pair is installed on the first motor 53 output shaft. 52, the retaining ring 55 realizes the axial positioning of the gear 52.

The present invention has the following beneficial effects: Advantages of the present invention:

1) The cutter 13 can be replaced according to the size of the hole and the processing method of the hole, and the replacement of the cutter is convenient.

2) The motor 23 can be replaced according to the load during hole processing, and the motor is easy to replace.

3) The hole processing technology and process are concentrated and the efficiency is high.

Description of drawings

Fig. 1 is a cross-sectional structure diagram of a CNC machine tool for processing cylinder wall holes according to an embodiment of the present invention.

Fig. 2 is a side sectional view of the tool holder turntable according to the embodiment of the present invention.

Fig. 3 is an installation diagram of the worm according to the embodiment of the present invention.

detailed description

In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the embodiments are not intended to limit the present invention.

As shown in Figure 1, the numerical control machine tool for processing the cylinder wall hole includes: a numerical control turntable 1 and claws 2. 1 drives the workpiece 3 to rotate and index, which can realize the processing of holes in different circumferential angle directions of the workpiece 3.

Fig. 2 is the side sectional view of the knife rest turntable of the embodiment of the present invention, the knife rest turntable 4 is installed on two guide rails 30, the screw nut 45 is fixed on the lower end of the knife rest turntable 4 by screws, and the lead screw 35 drives the knife rest through the screw nut 45 Turntable 4 moves up and down. The regular polygonal cutter head 19 is installed on the tool holder turntable 4 through the tapered roller bearing 44 and the deep groove ball bearing 26, and the outside of the tapered roller bearing 44 is equipped with a turbine 43, and the turbine 43 is fixedly connected with the cutter head 19.

Turbine wheel 43 and worm screw 42 form the worm gear kinematic pair, and worm screw 42 is installed on the knife rest turntable 4 (as shown in Figure 3) by support 65,66, and the fourth motor 41 is installed on the knife rest turntable 4 by support 68, and worm screw 42 It is fixedly connected with the output shaft of the fourth motor 41 through a coupling 67 . The rotary motion of the fourth motor 41 drives the tool holder turntable 4 to rotate through the worm 42 and the turbine 43 to realize tool change.

Tool structure includes: tool 13, ER nut 14, ER collet 15, tool spindle 16, bearing cover 17, sealing ring 18, spring retaining ring 12, deep groove ball bearing 9, 11, spacer 10, bevel gear 7 , 21, retaining ring 5, 24, key 8, 22, third motor 23, bearing seat 6.

The third motor 23 is fixed on the bearing seat 6 by screws, the torque of the third motor 23 is transmitted to the bevel gear 21 through the key 22, and the torque of the bevel gear 21 is transmitted to the tool spindle 16 through the bevel gear 7 and the key 8, and the tool spindle 16 is controlled by Deep groove ball bearings 9, 11 are supported and installed in the bearing housing 6. The tool 13 is fixed on the tool spindle 16 by the ER nut 14 and the ER collet 15, and the torque on the tool spindle 16 is transmitted to the tool 13 through the ER collet 15 for cutting.

A round hole is processed on the side wall of the cutter head 19, and the bearing seat 6 is inserted into the hole and fixed on the side wall of the cutter head 19 by screws.

The inner hole of the cutter head cover plate 20 is equipped with a deep groove ball bearing 26, and the bearing is fixed on the inner hole of the cutter head cover plate 20 by the spring retaining ring 25, and the cutter head cover plate 20 is fixed on the cutter head 19 by screws. The internal thread on the bearing gland 28 endoporus is screwed into the external thread on the knife rest turntable 4 upper ends, and the cutter head cover plate 20, the cutter head 19, and the tapered roller bearing 44 are pressed to the bottom of the knife rest turntable 4 by thrust ball bearings 27, Thereby realizing the axial positioning of the above-mentioned parts.

As shown in the A-direction cross-sectional view of the tool rest turntable 4 shown in Figure 2, the L-shaped column 31 is fixed on the slide table 47 by screws, the lower ends of the two guide rails 30 are fixed on the slide table 47 by the support 46, and the upper ends are inserted into the slide table 47. In the hole of L-shaped column 31, this hole upper end is processed with internal thread, and plug 64 with external thread is screwed into this hole, and the lower end of plug 64 is pressed on the upper end of guide rail 30, realizes the axial fixing of guide rail 30.

The fixed side support unit 63 of the second leading screw 35 is installed on the top of the L-shaped column 31, and the second screw nut 45 is fixed on the lower end of the knife rest turntable 4 by screws, and the gear one of the second gear pair is installed on the second leading screw 35 upper end. 32. The second nut 34 and the stepped surface on the second lead screw 35 on the lower side of the gear one 32 of the second gear pair realizes the axial fixation of the gear one 32 of the second gear pair. Fig. 1 is a cross-sectional structure diagram of a CNC machine tool for processing cylinder wall holes according to an embodiment of the present invention.

Torque is transmitted between the second lead screw 35 and the gear one 32 of the second gear pair through the second key one 33 . The second motor 36 is installed on the top of the L-shaped column 31 through the second bracket 37 . The output shaft of the second motor 36 is equipped with the second gear 38 of the second gear pair, and the second retaining ring 40 realizes the axial positioning of the second gear 38 of the second gear pair. Torque is transmitted between the output shaft of the second motor 36 and the gear two 38 of the second gear pair through the second key two 39 . The torque output by the second motor 36 is transmitted to the second lead screw 35 through the second gear 38 of the second gear pair and the first gear 32 of the second gear pair, and drives the tool rest turntable 4 to move up and down through the second screw nut, thereby driving the cutter 13 Moving up and down.

Two slide rails 60 and four slide blocks 59 form a horizontal linear motion pair, and the slide table 47 is fixedly connected with the four slide blocks 59 by screws. The fixed side support unit 57 of the first lead screw 51 is installed on the upper plane of the bed 61 . The first screw nut 58 is fixedly connected with the slide table 47 by screws. The gear one 48 of the first gear pair is installed on the first leading screw 51, transmits torque by key 49 between the first leading screw 51, the gear one 48 of the first gear pair, the first nut 50 and the gear of the first gear pair The stepped surface on the first lead screw 51 on the left side of the first lead screw 51 realizes the axial fixation of the gear one 48 of the first gear pair on the first lead screw 51 . Fig. 1 is a cross-sectional structure diagram of a CNC machine tool for processing cylinder wall holes according to an embodiment of the present invention.

The first motor 53 is installed on the bed 61 through the first bracket 55 . The second gear 52 of the first gear pair is installed on the output shaft of the first motor 53 , and the first spring retaining ring 55 realizes the axial positioning of the second gear 52 of the first gear pair. Torque is transmitted between the output shaft of the first motor 53 and the second gear 52 of the first gear pair through the first key 54 . The torque output by the first motor 53 is transmitted to the first lead screw 51 through the gear two 52 of the first gear pair and the first gear 48 of the first gear pair, and the screw nut drives the slide table 47 to move left and right, thereby driving the cutter 13 to move left and right.

The above embodiments are only to illustrate the technical ideas of the present invention, and cannot limit the scope of protection of the present invention with this. Any changes made on the basis of technical solutions according to the technical ideas proposed in the present invention all fall within the scope of protection of the present invention. within. Technologies not involved in the present invention can be realized by existing technologies.

Claims (10)

1. a kind of barrel hole machined Digit Control Machine Tool, including lathe bed (61), it is characterised in that it also includes：

Numerical control turntable (1)：The numerical control turntable (1) is fixed on the lathe bed (61), is set on the numerical control turntable (1) There is the claw (2) for regular worker's part, the numerical control turntable (1) can drive workpiece rotary index；

Horizontal rectilinear motion pair：The horizontal rectilinear motion pair is fixed on the lathe bed (61), the horizontal rectilinear motion pair Including carriage and slide unit (47), the carriage drives the slide unit to carry out horizontal linear reciprocating motion；

L-shaped column (31)：The L-shaped column (31) is fixed on the slide unit (47)；

Guide rail (30)：The lower end of the guide rail (30) is fixed on the slide unit (47), and the upper end of the guide rail (30) is consolidated Due on the L-shaped column (31)；The guide rail (30) at least two；

Knife rest rotating disk (4)：The knife rest rotating disk (4) is arranged on the guide rail (30)；

Vertical linear motion pair：The vertical linear motion it is secondary successively with the L-shaped column (31) and the knife rest rotating disk (4) It is connected, and controls and drive the knife rest rotating disk (4) to move up and down；

Toolbox：The toolbox is arranged on the knife rest rotating disk (4), for processing workpiece.

2. Digit Control Machine Tool according to claim 1, it is characterised in that：

The carriage includes slide rail (60), sliding block (59), the first screw (58), the first leading screw (51), the first motor (53)；The sliding block (59) is arranged on the slide rail (60), the slide unit (47) and the fixed company of the sliding block (59) Connect, first screw (58) is arranged on the slide unit (47) bottom, first screw mandrel (51) and first screw (58) it is supporting to be connected, the first motor (53) described in one end direct or indirect connection of first screw mandrel (51).

3. Digit Control Machine Tool according to claim 2, it is characterised in that：

The affixed side support unit (57) of first leading screw (51) is arranged in the upper plane of the lathe bed (61), institute State and be provided with the first leading screw (51) on the secondary gear one (48) of first gear, nut (50) and first leading screw (51) Step surface realize the axial restraint of the secondary gear one (48) of the first gear；First motor (53) is arranged on described On lathe bed (61), the secondary gear two (52) of first gear, check ring (55) are installed on the first motor (53) output shaft Realize the axially position of the secondary gear two (52) of the first gear.

4. Digit Control Machine Tool according to claim 1, it is characterised in that：

The guide rail (30) is round guide, and the knife rest rotating disk (4) is arranged on two round guides, the lower end of the round guide It is fixed on the slide unit (47), upper end is inserted in the perforate of the horizontal plane of the L-shaped column (31).

5. Digit Control Machine Tool according to claim 1, it is characterised in that：

The vertical linear motion pair includes the second leading screw (35), the second screw (45), the second motor (36), described second The affixed side support unit (63) of thick stick (35) is arranged on the top of the L-shaped column (31), axial restraint；Described second Motor (36) is arranged on the top of the L-shaped column (31)；Second screw (45) is fixed in knife rest rotating disk (4) lower end, Second leading screw (35) controls the knife rest rotating disk (4) to move up and down by second screw (45).

6. the Digit Control Machine Tool according to one of Claims 1-4, it is characterised in that：

The toolbox includes cutterhead (19), bearing block (6), cutter spindle (16), the 3rd motor (23), bearing gland (28), cutterhead cover plate (20), the cutterhead (19) is arranged on the knife rest rotating disk (4), the side of the cutterhead (19) Wall is provided with circular hole, and the bearing block (6) is inserted cutterhead (19) described in the Kong Bingyu and is fixedly connected, the 3rd motor (23) The bearing block (6) top is fixed on by the perforate of cutterhead cover plate (20), the cutter spindle (16) is arranged on the axle The opening direction of bearing (6)；Knife rest rotating disk (4) upper end is provided with the bearing gland (28).

7. Digit Control Machine Tool according to claim 6, it is characterised in that：The cutterhead (19) is regular polygon, passes through circle Taper roller bearing (44) and deep groove ball bearing (26) are arranged on the knife rest rotating disk (4).

8. Digit Control Machine Tool according to claim 7, it is characterised in that：The is installed on the outside of the taper roll bearing (44) The turbine and worm kinematic pair that four motors (41), worm screw (42) constitute with turbine (43), the turbine (43) and the cutterhead (19) connect firmly；4th motor (41), the worm screw (42) are arranged on the knife rest rotating disk (4), the worm screw (42) output shaft with the 4th motor (41) is connected firmly by shaft coupling (67)；The rotation of 4th motor (41) Motion drives knife rest rotating disk (4) indexing by the worm screw (42), the turbine (43), realizes tool changing.

9. Digit Control Machine Tool according to claim 8, it is characterised in that：Cutterhead cover plate (20) endoporus is provided with zanjon Ball bearing (26), the deep groove ball bearing (26) is fixed on cutterhead cover plate (20) endoporus by check ring (25), The cutterhead cover plate (20) is fixed on the cutterhead (19)；Internal thread on bearing gland (28) endoporus is screwed into institute State the external screw thread of knife rest rotating disk (4) upper end, by thrust ball bearing (27) the cutterhead cover plate (20), the cutterhead (19), The taper roll bearing (44) presses to knife rest rotating disk (4) bottom, so as to realize the axially position of above-mentioned part.

10. Digit Control Machine Tool according to claim 6, it is characterised in that：Cutterhead cover plate (20) endoporus is provided with depth Ditch ball bearing (26), the deep groove ball bearing (26) is fixed on cutterhead cover plate (20) endoporus by check ring (25), The cutterhead cover plate (20) is fixed on the cutterhead (19)；Internal thread on bearing gland (28) endoporus is screwed into institute The external screw thread of knife rest rotating disk (4) upper end is stated, by thrust ball bearing (27) the cutterhead cover plate (20), the cutterhead (19) Knife rest rotating disk (4) bottom is pressed to, so as to realize the axially position of above-mentioned part.