CN110253082B

CN110253082B - Cutting device for bottle-shaped cavity

Info

Publication number: CN110253082B
Application number: CN201910520603.7A
Authority: CN
Inventors: 李娜; 喻黎明; 唐兆家
Original assignee: Kunming University of Science and Technology
Current assignee: Kunming University of Science and Technology
Priority date: 2019-06-17
Filing date: 2019-06-17
Publication date: 2020-07-14
Anticipated expiration: 2039-06-17
Also published as: CN110253082A

Abstract

The invention relates to a cutting device for a bottle-shaped cavity, and belongs to the technical field of engineering machinery. The invention comprises a chassis 1, a motor II, a belt wheel III, a fixing plate IV, a rod II, a rod I, a nut I, a truss, a nut II, a motor I, a bolt I, a shell I, a fixing plate I, a shell II, a fixing plate II, a machining model, a hub clamp, a fixing plate III, a rod III, a bolt II, a belt wheel IV, a belt I, a belt wheel I, a bearing I, a fixing ring, a bearing II, a bolt III, a cutter bar I, a cutter bar II, a blade, a bolt IV, a cutter guide rail, a locking key gasket, a bearing V, a bearing III, a belt wheel II, a belt II, a bearing IV, a motor III and a bolt. The invention enables the cutting point on the cutting mechanism to move relative to the workpiece to be cut in three degrees of freedom, namely axial, radial and tangential, in the process of processing the symmetrical curved surface in the cavity, and simultaneously can realize the control of the roughness of the symmetrical curved surface in the cavity by controlling the transmission ratio of the transmission mechanism.

Description

Cutting device for bottle-shaped cavity

Technical Field

The invention relates to a cutting device for a bottle-shaped cavity, and belongs to the technical field of engineering machinery.

Background

The problem of processing and integrally forming the curved surface cavity is not well solved for a long time, the curved surface cavity is processed and spliced together after segmented casting, and the manufacturing method has the defects of poor precision, high manufacturing price, long period and the like. With the development of science and technology, the demand of cavity-shaped curved surface parts with small mouths and big bellies is larger and larger, and a new processing method is urgently needed to be realized. At present, the machining of complex high-precision curved-surface cavity parts becomes an urgent problem to be solved in mechanical and electronic manufacturing industry.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the invention provides a bottle-shaped cavity cutting device, which aims at the defects that the traditional curved-surface cavity is poor in splicing precision after being cast in a segmented mode, the roughness is difficult to meet the production requirement, the segmented mold opening cost is high, the production period is long, and the new product research and development period is slow.

The technical scheme of the invention is as follows: a bottle-shaped cavity cutting device comprises a chassis 1, a motor II 2, a belt wheel III 3, a fixing plate IV 4, a rod II 5, a rod I6, a nut I7, a truss 8, a nut II 9, a motor I10, a bolt I11, a shell I12, a fixing plate I13, a shell II 14, a fixing plate II 15, a machining model 16, a hub clamp 17, a fixing plate III 18, a rod III 19, a bolt II 20, a belt wheel IV 21, a belt I22, a belt wheel I23, a bearing I24, a fixing ring 25, a bearing II 26, a bolt III 27, a cutter bar I28, a cutter bar II 29, a blade 30, a bolt IV 31, a cutter guide rail 32, a locking key 33, a locking key gasket 34, a bearing V35, a bearing III 36, a belt wheel II 37, a belt II 38, a bearing IV 39, a motor III 40 and a bolt V41;

the motor II 2 is fixed on the chassis 1 through a bolt III 27, the belt wheel III 3 is fixed on a rotating shaft of the motor II 2, the belt wheel III 3 is connected with the belt wheel IV 21 through a belt II 38, the outer ring of the convex end of the belt wheel IV 21 is fixed on the inner ring of a bearing IV 39, the outer ring of the bearing IV 39 is fixed on a hole of the chassis 1, the inner ring of the convex end of the belt wheel IV 21 is provided with threads, a bolt II 20 penetrates through the inner ring of the convex end of the belt wheel IV 21 to be connected with the inner ring of the belt wheel IV 21 through the threads, the top end of the bolt II 20 is fixed in a blind hole at the central position of a fixing plate IV 4, a rod I6 penetrates through holes at the periphery of the fixing plate IV 4 to be fixed on the chassis 1 through a nut II 9, the fixing plate III 18 is fixed on the fixing plate IV 4 through a rod III 19 and a nut II 9, the outer ring of a bearing III 36 is fixed on a hole of a fixing plate III 18, a bolt III 27 penetrates through holes on the periphery of a hub clamp 17 to fix one end of a machining model 16 on the hub clamp 17, the other end of the machining model 16 is fixed on an inner ring of a bearing V35, the outer ring of the bearing V35 is fixed on a hole in the middle of a fixing plate II 15, the fixing plate II 15 is fixed with a fixing plate IV 4 through a rod II 5 and a nut I7, the periphery of the fixing plate II 15 is provided with holes, a rod I6 penetrates through the holes on the periphery of the fixing plate II 15, the other end of the rod I6 is fixed on a fixing plate I13 through a nut II 9, a shell I12 is fixed on a fixing plate I13 through a bolt III 27, an electric motor I10 is fixed on a shell I12 through a bolt V41, a belt wheel I23 is fixed on a transmission shaft of the electric motor I10, the belt wheel I23, is in threaded connection with a belt wheel II 37, the outer ring of the convex end of the belt wheel II 37 is fixed on the inner ring of a bearing I24, the outer ring of the bearing I24 is fixed on a hole at the upper end of a shell I12, the other end of a bolt I11 is fixed on the inner ring of a bearing II 26, the outer ring of the bearing II 26 is fixed on the inner ring at one end of the fixing ring 25, the inner ring at the other end of the fixing ring 25 is in interference fit with the outer ring of the other bearing II 26, the inner ring of the bearing II 26 is fixed with one end of the cutter bar I28, the other end of the cutter bar I28 is hinged with the cutter bar II 29 through the locking key 33 and the locking key washer 34, the cutter bar II 29 penetrates through the inner groove of the cutter guide rail 32 to form a sliding pair with the cutter guide rail 32, the blade 30 is fixed at one end of the cutter bar II 29 through the bolt IV 31, the circular boss of the cutter guide rail 32 penetrates through the hole at the bottom end of the truss 8, the other end of the truss 8 is fixed on the shell II.

Further, the bolt I11 is in threaded connection with the belt wheel II 37, the rotary motion of the belt wheel II 37 can be converted into the up-and-down movement of the bolt I11, the cutter bar I28 and the cutter bar II 29 are in hinged connection and form a connecting rod slider mechanism together with the cutter guide rail 32, the degree of freedom of the connecting rod slider mechanism is 1, and the blade 30 is fixed on the cutter bar II 29 through a bolt IV 31 for cutting.

Further, the bolt II 20 penetrates through an inner ring of a convex end of the belt pulley IV 21 to be in threaded connection with an inner ring of the belt pulley IV 21, the rotary motion of the belt pulley IV 21 is converted into up-and-down motion through the bolt II 20, so that the fixing plate IV 4 is pushed up and down, the fixing plate II 15 is connected with the nut I7 through the rod II 5, the rod I6 penetrates through holes in the peripheries of the fixing plate II 15 and the fixing plate IV 4 to have the function of a guide rail, and therefore the bolt II 20 can push components between the fixing plate II 15 and the fixing plate IV 4 to slide up and down along the four rods I6.

The working principle of the invention is as follows:

kinetic energy generated by the motor II 2 is transmitted to the belt II 38 through the belt wheel III 3, the kinetic energy is transmitted to the belt wheel IV 21 through the belt II 38, the inner ring of the convex end of the belt wheel IV 21 is provided with threads, the bolt II 20 penetrates through the inner ring of the convex end of the belt wheel IV 21 to be in threaded connection with the inner ring of the belt wheel IV 21, when the belt wheel IV 21 rotates, the rotating kinetic energy is converted into vertical upward kinetic energy through the bolt II 20 and pushes the fixing plate IV 4, and therefore the fact that the left-right rotation of the motor II 2 is converted into the vertical reciprocating motion of the fixing plate IV.

The motor III 40 rotates to drive the hub clamp 17 to rotate, the machining model 16 is fixed on the hub clamp 17 through the bolt III 27, the hub clamp 17 drives the machining model 16, forward and reverse rotation of the motor III 40 is achieved, the machining model 16 is driven to rotate forward and reverse, cutting force is formed, and cavity cutting is conducted.

The motor I10 rotates to drive the belt wheel I23 and transmits kinetic energy to the belt wheel II 37 through the belt I22, the inner ring of the belt wheel II 37 is provided with threads, the bolt I11 penetrates through the inner ring of the belt wheel II 37, is connected with the belt wheel II 37 by screw thread, the other end of the bolt I11 is fixed on the inner ring of the bearing II 26, the outer ring of the bearing II 26 is fixed on the inner ring at one end of the fixed ring 25, the inner ring at the other end of the fixed ring 25 is in interference fit with the outer ring of the other bearing II 26, the inner ring of the bearing II 26 is fixed with one end of the cutter bar I28, the other end of the cutter bar I28 is hinged with the cutter bar II 29 through a locking key 33 and a locking key washer 34, the cutter bar II 29 penetrates through the inner groove of the cutter guide rail 32 to form a sliding pair with the cutter guide rail 32, the blade 30 is fixed at one end of the cutter bar II 29 through a, therefore, the forward and backward rotation driven blade 30 driven by the rotation of the motor I10 can reciprocate in the axial and radial planes.

The invention has the beneficial effects that: the axial up-and-down motion of the machining model is realized through the rotation of the motor II, the axial rotation motion of the machining model is realized through the rotation of the motor III, cutting force is provided, and the reciprocating motion of the blade in the axial plane and the radial plane is realized through the rotation of the motor I. The cutting point of the blade can simultaneously obtain the degrees of freedom in three directions of axial direction, radial direction and tangential direction relative to a machining model through the combined motion of the motor II, the motor III and the motor I at a certain moment, so that the shape of the inner curved surface of the cavity can be cut out, and the precision is high.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural diagram of a portion of the bolt I driving the cutting point to move vertically according to the present invention;

FIG. 3 is a schematic view of a transition connection of a revolute pair according to the present invention;

FIG. 4 is a schematic view of the connection between the shell II and the truss according to the present invention;

FIG. 5 is a schematic view of the hinge linkage connection of the present invention;

FIG. 6 is a schematic view of the vertical device connection of the processing model of the present invention;

FIG. 7 is a schematic diagram II of the vertical attachment of the processing mold of the present invention.

The reference numbers in the figures: 1-chassis, 2-motor II, 3-belt wheel III, 4-fixed plate IV, 5-rod II, 6-rod I, 7-nut I, 8-truss, 9-nut II, 10-motor I, 11-bolt I, 12-shell I, 13-fixed plate I, 14-shell II, 15-fixed plate II, 16-processing model, 17-hub clamp, 18-fixed plate III, 19-rod III, 20-bolt II, 21-belt wheel IV, 22-belt I, 23-belt wheel I, 24-bearing I, 25-fixing ring, 26-bearing II, 27-bolt III, 28-cutter bar I, 29-cutter bar II, 30-blade, 31-bolt IV, 32-cutter guide rail IV, 33-locking key, 34-locking key washer, 35-bearing V, 36-bearing III, 37-belt wheel II, 38-belt II, 39-bearing IV, 40-motor III and 41-bolt V.

Detailed Description

The invention is further described with reference to the following figures and specific examples.

Example 1: as shown in fig. 1-7, a bottle-shaped cavity cutting device comprises a chassis 1, a motor ii 2, a belt wheel iii 3, a fixing plate iv 4, a rod ii 5, a rod i 6, a nut i 7, a truss 8, a nut ii 9, a motor i 10, a bolt i 11, a shell i 12, a fixing plate i 13, a shell ii 14, a fixing plate ii 15, a processing model 16, a hub clamp 17, a fixing plate iii 18, a rod iii 19, a bolt ii 20, a belt wheel iv 21, a belt i 22, a belt wheel i 23, a bearing i 24, a fixing ring 25, a bearing ii 26, a bolt iii 27, a cutter bar i 28, a cutter bar ii 29, a blade 30, a bolt iv 31, a cutter guide rail 32, a locking key 33, a locking key washer 34, a bearing v 35, a bearing iii 36, a belt wheel ii 37, a belt ii 38, a bearing iv 39, a motor iii 40, and a bolt;

the motor II 2 is fixed on the chassis 1 through bolts III 27 (4), the belt wheel III 3 is fixed on a rotating shaft of the motor II 2, the belt wheel III 3 is connected with the belt wheel IV 21 through a belt II 38, the outer ring of the convex end of the belt wheel IV 21 is fixed on the inner ring of a bearing IV 39, the outer ring of the bearing IV 39 is fixed on a hole of the chassis 1, the inner ring of the convex end of the belt wheel IV 21 is provided with threads, bolts II 20 (1) penetrate through the inner ring of the convex end of the belt wheel IV 21 to be connected with the inner ring of the belt wheel IV 21 through threads, the top end of the bolt II 20 is fixed in a blind hole at the central position of a fixed plate IV 4, a rod I6 (4) penetrates through holes at the periphery of the fixed plate IV 4 and is fixed on the chassis 1 through a nut II 9, the fixed plate III 18 is fixed on the fixed plate IV 4 through a rod III 19 (4) and a nut II 9 (8), the motor III, the middle position of a rotating shaft is in interference fit with a bearing III 36, an outer ring of the bearing III 36 is fixed on a hole of a fixing plate III 18, bolts III 27 (4) penetrate through holes around a hub clamp 17 to fix one end of a processing model 16 on the hub clamp 17, the other end of the processing model 16 is fixed on an inner ring of a bearing V35, an outer ring of the bearing V35 is fixed on a hole in the middle of a fixing plate II 15, the fixing plate II 15 is fixed with a fixing plate IV 4 through a rod II 5 and nuts I7 (8), holes around the fixing plate II 15 are formed, a rod I6 penetrates through holes around the fixing plate II 15, the other end of the rod I6 is fixed on a fixing plate I13 through a nut II 9 (4), a shell I12 is fixed on a fixing plate I13 through bolts III 27 (4), a motor I10 is fixed on a shell I12 through bolts V41 (4), and a belt pulley I23 is fixed, the belt wheel I23 and the belt wheel II 37 are connected together through a belt I22, the inner ring of the belt wheel II 37 is provided with threads, a bolt I11 penetrates through the inner ring of the belt wheel II 37 and is in threaded connection with the belt wheel II 37, the outer ring of the convex end of the belt wheel II 37 is fixed on the inner ring of a bearing I24, the outer ring of the bearing I24 is fixed on the hole at the upper end of a shell I12, the other end of the bolt I11 is fixed on the inner ring of a bearing II 26, the outer ring of the bearing II 26 is fixed on the inner ring at one end of a fixing ring 25, the inner ring at the other end of the fixing ring 25 is in interference fit with the outer ring of another bearing II 26, the inner ring of the bearing II 26 is fixed with one end of a cutter bar I28, the other end of the cutter bar I28 is hinged with the cutter bar II 29 through a locking key 33 and a locking key gasket 34, the cutter bar II 29, the other end of the truss 8 is fixed on a shell II 14 through a bolt V41, and the shell II 14 is fixed on a fixing plate I13 through a bolt III 27 (4).

The working principle of the invention is as follows:

While the present invention has been described in detail with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, and various changes and modifications can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A bottle-shaped cavity cutting device is characterized in that: the device comprises a chassis (1), a motor II (2), a belt wheel III (3), a fixed plate IV (4), a rod II (5), a rod I (6), a nut I (7), a truss (8), a nut II (9), a motor I (10), a bolt I (11), a shell I (12), a fixed plate I (13), a shell II (14), a fixed plate II (15), a processing model (16), a hub clamp (17), a fixed plate III (18), a rod III (19), a bolt II (20), a belt wheel IV (21), a belt I (22), a belt wheel I (23), a bearing I (24), a fixing ring (25), a bearing II (26), a bolt III (27), a cutter bar I (28), a cutter bar II (29), a cutter blade (30), a bolt IV (31), a cutter guide rail (32), a locking key (33), a locking key gasket (34), a bearing V (35), a bearing III (36), A belt wheel II (37), a belt II (38), a bearing IV (39), a motor III (40) and a bolt V (41);

the motor II (2) is fixed on the chassis (1) through a bolt III (27), the belt wheel III (3) is fixed on a rotating shaft of the motor II (2), the belt wheel III (3) is connected with the belt wheel IV (21) through a belt II (38), an outer ring of a convex end of the belt wheel IV (21) is fixed on an inner ring of a bearing IV (39), an outer ring of the bearing IV (39) is fixed on a hole of the chassis (1), an inner ring of the convex end of the belt wheel IV (21) is provided with threads, a bolt II (20) penetrates through the inner ring of the convex end of the belt wheel IV (21) and is in threaded connection with the inner ring of the belt wheel IV (21), the top end of the bolt II (20) is fixed in a blind hole in the center of the fixing plate IV (4), the rod I (6) penetrates through holes around the fixing plate IV (4) and is fixed on the chassis (1) through a nut II (9), the fixing plate III (18) is fixed on, the motor III (40) is fixed on the fixing plate IV (4) through a bolt III (27), the hub clamp (17) is fixed at the top end of a rotating shaft of the motor III (40), the middle position of the rotating shaft is in interference fit with the bearing III (36), the outer ring of the bearing III (36) is fixed on a hole of the fixing plate III (18), the bolt III (27) penetrates through holes around the hub clamp (17) to fix one end of the processing model (16) on the hub clamp (17), the other end of the processing model (16) is fixed on the inner ring of the bearing V (35), the outer ring of the bearing V (35) is fixed on a hole in the middle of the fixing plate II (15), the fixing plate II (15) is fixed with the fixing plate IV (4) through a rod II (5) and a nut I (7), holes are formed around the fixing plate II (15), the rod I (6) penetrates through holes around the fixing plate II (15), the other end of the rod I (6) is fixed on the fixing plate, the shell I (12) is fixed on a fixing plate I (13) through a bolt III (27), a motor I (10) is fixed on the shell I (12) through a bolt V (41), a belt wheel I (23) is fixed on a transmission shaft of the motor I (10), the belt wheel I (23) is connected with a belt wheel II (37) through a belt I (22), an inner ring of the belt wheel II (37) is threaded, a bolt I (11) penetrates through the inner ring of the belt wheel II (37) and is in threaded connection with the belt wheel II (37), an outer ring of a convex end of the belt wheel II (37) is fixed on the inner ring of a bearing I (24), an outer ring of the bearing I (24) is fixed on a hole in the upper end of the shell I (12), the other end of the bolt I (11) is fixed on the inner ring of a bearing II (26), an outer ring of the bearing II (26) is fixed on an inner ring at one end of a fixing ring (25), the inner ring, an inner ring of the bearing II (26) is fixed with one end of a cutter bar I (28), the other end of the cutter bar I (28) is hinged with the cutter bar II (29) through a locking key (33) and a locking key gasket (34), the cutter bar II (29) penetrates through an inner groove of a cutter guide rail (32) to form a sliding pair with the cutter guide rail (32), a blade (30) is fixed at one end of the cutter bar II (29) through a bolt IV (31), a circular boss of the cutter guide rail (32) penetrates through a hole in the bottom end of a truss (8), the other end of the truss (8) is fixed on a shell II (14) through a bolt V (41), and the shell II (14) is fixed on a fixing plate I (13) through a bolt III (27).