CN112975020A

CN112975020A - Indexing clamping device for wire cutting

Info

Publication number: CN112975020A
Application number: CN202110207844.3A
Authority: CN
Inventors: 姜文彪; 袁惠祥; 周卫民; 王志坚; 郑章琦; 王月青
Original assignee: Zhejiang Lover Health Science and Technology Development Co Ltd
Current assignee: Zhejiang Lover Health Science and Technology Development Co Ltd; Zhejiang University of Science and Technology ZUST
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2021-06-18

Abstract

The invention discloses an indexing clamping device for wire cutting, which comprises a three-jaw chuck 1, wherein a bottom plate 2 is arranged on one side of the three-jaw chuck 1, a main machine base 3 is arranged on the bottom plate 2, a positioning hole 4 is formed in one end of the three-jaw chuck 1, a flange shaft 5 is arranged at the end part of the three-jaw chuck 1, a flange plate 6 is arranged on the flange shaft 5, the flange plate 6 is clung to the three-jaw chuck 1, a boss 7 is arranged on one side of the flange plate 6, and the boss 7 is tightly embedded in the positioning hole 4; the flange shaft 5 is sleeved with a copper shaft sleeve 8, one end of the copper shaft sleeve 8 is tightly attached to the flange plate 6 of the flange shaft 5, and the copper shaft sleeve 8 is arranged in the main machine seat 3. The invention can effectively clamp the shaft parts and accurately index the shaft parts by rotating and adjusting.

Description

Indexing clamping device for wire cutting

Technical Field

The invention relates to the field of linear cutting machining equipment, in particular to an indexing clamping device for linear cutting.

Background

The principle of linear cutting is that free positive ions and electrons are accumulated in a field to form an ionized conductive channel, and at this stage, current is formed between two electrodes to cause numerous collisions between particles to form a plasma region, and the plasma region is quickly raised to a high temperature of 8000-12000 ℃, so that some materials are instantly melted on the surfaces of two conductors. For the linear cutting processing of shaft parts, a special clamp is required to be used for clamping, for example, the Chinese utility model patent with the publication number of CN209550829U discloses a small linear cutting machine tool clamp for clamping shaft parts, which comprises a disc-shaped clamp body and a clamping screw, wherein a fixing plate I and a fixing plate II are respectively arranged on two sides of the lower end of the disc-shaped clamp body, and a U-shaped adjusting groove I and a U-shaped adjusting groove II are respectively arranged on the fixing plate I and the fixing plate II; the upper end of the disc-shaped clamp body is circumferentially and equiangularly provided with three threaded holes, each threaded hole is internally provided with a clamping screw, and the front end of the disc-shaped clamp body is axially provided with a cut-in groove. However, the equipment has some defects, and the shaft part cannot rotate by an accurate angle, so that accurate indexing cannot be quickly realized, and the processing requirements of various regular polygonal parts cannot be met.

Disclosure of Invention

The invention aims to provide an indexing clamping device for wire cutting. The invention can effectively clamp the shaft parts and accurately index the shaft parts by rotating and adjusting.

The technical scheme of the invention is as follows: the indexing clamping device for wire cutting comprises a three-jaw chuck, wherein a bottom plate is arranged on one side of the three-jaw chuck, a main machine base is arranged on the bottom plate, a positioning hole is formed in one end of the three-jaw chuck, a flange shaft is arranged at the end part of the three-jaw chuck, a flange plate is arranged on the flange shaft and is tightly attached to the three-jaw chuck, a boss is arranged on one side of the flange plate, and the boss is tightly embedded in the positioning hole; the flange shaft is sleeved with a copper shaft sleeve, one end of the copper shaft sleeve is tightly attached to a flange plate of the flange shaft, the copper shaft sleeve is arranged in the host machine seat, the end part of the flange shaft is provided with an index plate, and the side part of the host machine seat is fixed with an index plate positioning device.

Among the foretell graduation clamping device for wire-electrode cutting, the copper bush on be equipped with through-hole and annular, the host computer seat on be equipped with the oil filler point, the oil filler point includes first hole, the intercommunication has the second hole under the first hole, oil filler point and through-hole corresponding, be equipped with the grease squirt in the oil filler point.

In the indexing clamping device for wire cutting, the oil injector comprises an oil injector main body arranged in the first hole, a cavity is arranged in the oil injector main body, a steel ball is arranged in the cavity, an oil injection spring is arranged under the steel ball, the upper end of the oil injection spring is abutted against the steel ball, and the lower end of the oil injection spring is abutted against the bottom of the first hole.

In the above-mentioned indexing clamping device for wire cutting, the bottom plate and the main machine base are connected by screws.

In the index clamping device for wire cutting, knurls are arranged on the circumferential surface of the index plate.

In the indexing clamping device for wire cutting, the indexing disc positioning device comprises an adjusting bracket fixed on the side part of the main machine base, an adjusting groove is formed in the adjusting bracket, a positioning sleeve is arranged in the adjusting groove, a positioning pin shaft is arranged in the positioning sleeve, and a positioning conical head is arranged at one end of the positioning pin shaft; the positioning pin shaft is sleeved with a compression spring, one end of the positioning pin shaft penetrates through the positioning sleeve to extend outwards, an orientation sleeve is arranged at the end part of the positioning pin shaft, a pulling handle is fixed on the orientation sleeve, clamping grooves are symmetrically formed in the end surface, close to the orientation sleeve, of the positioning sleeve, one end of the orientation sleeve is provided with a protruding block, a nut is arranged on the positioning sleeve, and the orientation sleeve, the pulling handle and the positioning pin shaft are connected through a set screw.

In the indexing clamping device for wire cutting, the flange copper shaft sleeve is of a hollow shaft structure.

In the above-described indexing and clamping device for wire cutting, the index plate has an equi-division structure of a plurality of circles of holes.

Compared with the prior art, the invention has the following advantages:

1. a bottom plate is arranged on one side of a three-jaw chuck, a main machine base is arranged on the bottom plate, a flange shaft is arranged at the end part of the three-jaw chuck, a flange plate is arranged on the flange shaft, and the flange plate is tightly attached to the three-jaw chuck; the flange shaft is provided with a copper shaft sleeve, one end of the copper shaft sleeve is tightly attached to a flange plate of the flange shaft, the copper shaft sleeve is fixed in the host machine seat, the end part of the flange shaft is provided with an index plate, and the side part of the host machine seat is fixed with an index plate positioning device; the shaft that will process is pressed from both sides tightly with three-jaw chuck, when needs axis of rotation spare, pulls out behind the locating pin axle, stirs the graduated disk, drives three-jaw chuck through the flange axle and rotates, according to the requirement of processing, selects corresponding partition hole on the graduated disk, adjusts graduated disk positioner, fixes a position the graduated disk, through setting up the graduated disk for axis spare pivoted angle is more accurate and audio-visual demonstration, is favorable to accurately processing arbitrary regular polygon.

2. The oil ejector comprises an oil ejector main body arranged in the first hole, a cavity is arranged in the oil ejector main body, a steel ball is arranged in the cavity, an oil injection spring is arranged below the steel ball, the upper end of the oil injection spring is abutted against the steel ball, and the lower end of the oil injection spring is abutted against the bottom of the first hole; because can produce the friction during relative rotation between flange axle and the copper bush, need pour into lubricating oil into and lubricate, press the steel ball downwards for oil filler point and outside intercommunication, inwards pour into lubricating oil into, in lubricating oil flows into the through-hole on the copper bush from the oil filler point, under the drive of flange axle, all have the oil film layer on the circumference of flange axle, alleviate the wearing and tearing between copper bush and the flange axle, improve life, ensure the graduation precision.

3. The bottom plate is connected with the main machine base through screws, so that the bottom plate and the main machine base can be conveniently detached.

4. The dividing plate is provided with knurls on the circumferential surface, so that the structure can increase friction force and is convenient for better rotating the dividing plate.

5. The flange shaft is of a hollow shaft structure, the shaft piece clamped by the three-jaw chuck is possibly longer, and the flange shaft is designed to be hollow, so that the flange shaft is convenient to clamp the longer shaft piece.

6. The dividing plate is of an equal-division structure with a plurality of circles of holes, and corresponding holes can be selected according to different equal-division forms of the holes in each circle according to actual cutting requirements, so that the requirement for accurate division of various regular polygons and the like is met.

Drawings

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

FIG. 2 is a schematic view of a copper bushing;

FIG. 3 is a schematic view of a positioning hole;

FIG. 4 is a schematic view of the lubricator;

FIG. 5 is a schematic view of the index plate positioning device;

FIG. 6 is a schematic view of a positioning handle assembly;

FIG. 7 is a schematic view of a hold down spring;

FIG. 8 is a schematic view of an orienting sleeve;

FIG. 9 is a schematic view of a shoulder on the boot;

description of the reference symbols in the drawings: 1-three-jaw chuck, 2-bottom plate, 3-main machine base, 4-positioning hole, 5-flange shaft, 6-flange plate, 7-boss, 8-copper shaft sleeve, 9-graduated disk, 901-knurling, 10-graduated disk positioning device, 11-through hole, 12-oil injection hole, 13-first hole, 14-second hole, 15-oil injector, 151-oil injector main body, 152-cavity, 153-steel ball, 154-oil injection spring, 16-adjusting bracket, 17-adjusting groove, 18-positioning sleeve, 19-positioning pin shaft, 20-positioning conical head, 21-compression spring, 22-positioning sleeve, 23-pulling handle, 24-clamping groove, 25-lug, 26-nut and 27-annular groove.

Detailed Description

The invention is further illustrated by the following figures and examples, but is not to be construed as being limited thereto.

Example (b): an indexing clamping device for wire cutting is shown in figure 1 and comprises a three-jaw chuck 1, wherein a bottom plate 2 is arranged on one side of the three-jaw chuck 1, a main machine seat 3 is arranged on the bottom plate 2, and the bottom plate 2 is connected with the main machine seat 3 through screws so as to be convenient to disassemble; one end of the three-jaw chuck 1 is provided with a positioning hole 4, the end part of the three-jaw chuck 1 is provided with a flange shaft 5, the flange shaft 5 is of a hollow shaft structure, the shaft piece clamped by the three-jaw chuck is long in possible length, and the flange shaft is designed to be hollow, so that the flange shaft piece can be clamped conveniently. The flange shaft 5 is provided with a flange plate 6, as shown in fig. 2 and 3, the flange plate 6 is tightly attached to the three-jaw chuck 1, one side of the flange plate 6 is provided with a boss 7, the boss 7 is tightly embedded in the positioning hole 4 and matched with the positioning hole 4, and the three-jaw chuck 1 and the flange shaft 5 are fixed by adopting an inner hexagon screw; the flange shaft 5 is sleeved with a copper shaft sleeve 8, as shown in fig. 4, the copper shaft sleeve is made of bronze, the bronze has high wear resistance and can adapt to a working environment, one end of the copper shaft sleeve 8 is tightly attached to a flange plate 6 of the flange shaft 5, the copper shaft sleeve 8 is arranged in the main machine base 3, an index plate 9 is arranged at the end part of the flange shaft 5, and knurls 901 are arranged on the circumference of the index plate 9, so that the structure can increase friction force and is convenient for better rotating the index plate; an indexing disc positioning device 10 is fixed on the side of the main machine base 3, as shown in fig. 5. The index plate positioning device 10 comprises an adjusting bracket 16 fixed on the side part of the main machine base 3, an adjusting groove 17 is formed in the adjusting bracket 16, a positioning sleeve 18 is arranged in the adjusting groove 17, a shaft shoulder is arranged on the positioning sleeve, and symmetrical planes are arranged on the upper side and the lower side of the shaft shoulder, as shown in fig. 9, the two planes are clung to the upper inner wall and the lower inner wall of the adjusting groove, so that the positioning sleeve can stably and accurately move when the adjusting groove moves, and is firmer and less prone to shaking after the positioning sleeve is fastened; a positioning pin shaft 19 is arranged in the positioning sleeve 18, a positioning conical head 20 is arranged at one end of the positioning pin shaft 19, a conical surface with 60 degrees is arranged at the positioning conical head, the hole ends of a plurality of holes formed in the dividing plate are also conical surfaces, and the dividing plate is positioned more accurately by fitting of the conical surfaces, as shown in fig. 6; the positioning pin shaft 19 is sleeved with a compression spring 21, as shown in fig. 7, one end of the positioning pin shaft 19 penetrates through the positioning sleeve 18 to extend outwards, the end part of the positioning pin shaft is provided with a directional sleeve 22, a pulling handle 23 is fixed on the directional sleeve 22, and the directional sleeve 22, the pulling handle 23 and the positioning pin shaft 19 are connected through a set screw. The positioning sleeve 18 and the end surface close to the orientation sleeve 22 are symmetrically provided with clamping grooves 24, as shown in fig. 8, one end of the orientation sleeve 22 is provided with a convex block 25; the positioning sleeve 18 is provided with a nut 26.

Five indexing hole rings are arranged on the common surface of the indexing disc, 9, 10, 12, 14 and 16 equal indexing holes are formed from the inner ring to the outer ring respectively, and the reference hole of each hole ring on the disc surface is on a radial straight line; when indexing, selecting a corresponding indexing hole form, unscrewing the nut, moving the positioning sleeve in the adjusting groove, screwing the nut after determining an angle, holding the pull handle by hand and pulling outwards, and simultaneously rotating the pull handle to clamp the bump into the clamping groove, so that the positioning conical head of the positioning pin shaft enters the corresponding angle hole to effectively position the indexing disc, and the positioning acting force of the positioning pin shaft on the indexing disc is sufficient because no macroscopic acting force exists between the electrode wire and the workpiece during cutting; when the index plate needs to be rotated, the pulling handle is pulled to one side, and meanwhile, the handle is rotated, so that the convex block on the orientation sleeve is separated from the clamping groove, and the positioning conical head is separated from the index plate. The invention can process any regular polygon workpiece in 2-19 polygons. The other surface of the dividing plate is also provided with dividing holes, the dividing form is an odd number equal dividing form, and the surface is changed according to the actual cutting requirement; and the index plate can be conveniently detached, and other index plates in different index forms can be replaced, so that the index plates can be used corresponding to any regular polygon. The indexing disc 9 is of an equant structure with a plurality of circles of holes, indexing holes are formed in two faces of the indexing disc, 5 circles of holes are formed in a common face, and the number of the equant holes in each circle is 9, 10, 12, 14 and 16 respectively, so that workpieces of any regular polygon in 2-10 sides and regular polygons in 12, 14 and 16 sides can be machined; the other surface is also provided with 5 circles of holes, and the number of the holes in each circle is 11, 13, 15, 17 and 19, so that regular polygonal workpieces on the corresponding sides can be machined. The two indexing disks are provided, indexing holes are arranged on two sides of the other indexing disk, 5 circles of holes are arranged on the front side, and the number of the indexing holes in each circle is respectively 18, 20, 22, 24 and 26; the reverse side also has 5 circles of holes, and the number of the holes in each circle is 28, 30, 32, 34 and 36 respectively. The equally dividing holes equally divide the circumference scribed lines, thereby facilitating the processing of regular polygon workpieces with corresponding edges.

The copper shaft sleeve 8 is provided with a through hole 11 and an annular groove 27, the main machine base 3 is provided with an oil filling hole 12, the oil filling hole 12 comprises a first hole 13, a second hole 14 is communicated below the first hole 13, the oil filling hole 12 corresponds to the through hole 11, the annular groove is connected with the through hole, and when lubricating oil flows in from the through hole, the lubricating oil can quickly cover the circumferential surface of the flange shaft through the annular groove; an oil filler 15 is arranged in the oil filling hole 12. The lubricator 15 including setting up the lubricator main part 151 in first hole 13, the upper end of lubricator main part is equipped with the step, need adopt the mode of strikeing when installing the lubricator main part to block this part into the oiling hole in, set up the location of the lubricator main part of being convenient for of this step, be equipped with cavity 152 in the lubricator main part 151, be equipped with steel ball 153 in the cavity 152, steel ball 153 has oiling spring 154, the upper end and the steel ball 153 of oiling spring 154 are inconsistent, the lower extreme and the bottom of first hole 13 of oiling spring 154 are inconsistent. Contact can produce the friction between flange axle and the copper bush, need pour into lubricating oil into and lubricate, press the steel ball downwards, make oil filler point and outside intercommunication, inwards pour into lubricating oil, lubricating oil flows into the through-hole on the copper bush from the oil filler point, under the drive of flange axle, all have the oil film layer on the circumference of flange axle, alleviate wearing and tearing between copper bush and the flange axle, and the service life is prolonged, it can guarantee when ordinary use to set up the oiling spring, be confined space between copper bush and the flange axle, avoid the entering of dust.

The working principle of the invention is as follows: the shaft that will process is pressed from both sides tightly with three-jaw chuck, when needs axis of rotation spare, pulls out behind the locating pin axle, stirs the graduated disk, drives three-jaw chuck through the flange axle and rotates, according to the requirement of processing, selects corresponding partition hole on the graduated disk, adjusts graduated disk positioner, fixes a position the graduated disk, through setting up the graduated disk for axis spare pivoted angle is more accurate and audio-visual demonstration, is favorable to accurately processing arbitrary regular polygon.

Claims

1. Indexing clamping device for wire cutting, including three-jaw chuck (1), its characterized in that: a bottom plate (2) is arranged on one side of the three-jaw chuck (1), a main machine base (3) is arranged on the bottom plate (2), a positioning hole (4) is formed in one end of the three-jaw chuck (1), a flange shaft (5) is arranged at the end part of the three-jaw chuck (1), a flange plate (6) is arranged on the flange shaft (5), the flange plate (6) is tightly attached to the three-jaw chuck (1), a boss (7) is arranged on one side of the flange plate (6), and the boss (7) is tightly embedded in the positioning hole (4); the flange shaft (5) on the cover have copper bush (8), the one end of copper bush (8) is hugged closely with ring flange (6) of flange shaft (5) mutually, copper bush (8) set up in host computer seat (3), the tip of flange shaft (5) be equipped with graduated disk (9), the lateral part of host computer seat (3) be fixed with graduated disk positioner (10).

2. The indexing holding device for wire cutting according to claim 1, wherein: copper axle sleeve (8) on be equipped with through-hole (11) and annular (27), host computer seat (3) on be equipped with oil filler point (12), oil filler point (12) include first hole (13), first hole (13) lower intercommunication has second hole (14), oil filler point (12) corresponding with through-hole (11), be equipped with grease squirt (15) in oil filler point (12).

3. The indexing holding device for wire cutting according to claim 2, wherein: the oil ejector (15) comprises an oil ejector main body (151) arranged in the first hole (13), a cavity (152) is arranged in the oil ejector main body (151), a steel ball (153) is arranged in the cavity (152), an oil injection spring (154) is arranged below the steel ball (153), the upper end of the oil injection spring (154) is abutted to the steel ball (153), and the lower end of the oil injection spring (154) is abutted to the bottom of the first hole (13).

4. The indexing holding device for wire cutting according to claim 1, wherein: the bottom plate (2) is connected with the main machine base (3) through screws.

5. The indexing holding device for wire cutting according to claim 1, wherein: knurling (901) is arranged on the circumferential surface of the dividing plate (9).

6. The indexing holding device for wire cutting according to claim 1, wherein: the index plate positioning device (10) comprises an adjusting bracket (16) fixed on the side part of the main machine base (3), an adjusting groove (17) is formed in the adjusting bracket (16), a positioning sleeve (18) is arranged in the adjusting groove (17), a positioning pin shaft (19) is arranged in the positioning sleeve (18), and a positioning conical head (20) is arranged at one end of the positioning pin shaft (19); positioning pin axle (19) on be equipped with pressure spring (21), the one end of positioning pin axle (19) passes position sleeve (18) and outwards extends, and is equipped with directional cover (22) at the tip, is fixed with pull handle (23) on directional cover (22), position sleeve (18) and be close to the terminal surface of directional cover (22) on the symmetry be equipped with draw-in groove (24), the one end of directional cover (22) be equipped with lug (25), position sleeve (18) on be equipped with nut (26), directional cover (22) and pull handle (23) and positioning pin axle (19) between adopt holding screw to connect.

7. The indexing holding device for wire cutting according to claim 1, wherein: the flange shaft (5) is of a hollow shaft structure.

8. The indexing holding device for wire cutting according to claim 1, wherein: the indexing disc (9) is of an equal-number structure with a plurality of circles of holes.