CN214920614U

CN214920614U - Quick clamping tool for central expansion sleeve type chamfering machine

Info

Publication number: CN214920614U
Application number: CN202120999269.0U
Authority: CN
Inventors: 赵全德; 池磊
Original assignee: Magna Automotive Systems Changzhou Co ltd
Current assignee: Magna Automotive Systems Changzhou Co ltd
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2021-11-30
Anticipated expiration: 2031-05-11

Abstract

The utility model discloses a quick clamping frock of shell type beveler rises in center belongs to beveler clamping field. The utility model discloses a quick clamping frock of cover formula beveler rises in center, including chuck, central positioning flange, pull rod and the cover that rises, set up the cover arch that rises through the cover outside ring that rises for the cover that rises contacts through the post that rises of pull rod and central positioning flange and rises, when the centering rises to the work piece center, utilizes the cover arch that rises to carry on spacingly to the work piece axial, utilizes the location portion of chuck circumference to fix a position work piece circumference simultaneously, guarantees that the work piece clamping is firm stable, clamping convenient operation, and clamping positioning accuracy is high.

Description

Quick clamping tool for central expansion sleeve type chamfering machine

Technical Field

The utility model relates to a beveler clamping frock, more specifically say, relate to a quick clamping frock of cover formula beveler rises in center.

Background

The clamping mechanism of the traditional gear chamfering machine mostly adopts a pressure plate type positioning mode, a worker needs to place a workpiece and a pressure plate successively during operation and tighten the pressure plate, so that the working strength is high, the chamfering process takt time is long, the positioning and installation are long, the machining efficiency of the workpiece is reduced, the economic benefit is reduced, and the normal production requirements of a company cannot be met.

In order to solve the above problems, a gear workpiece clamping device is also available in the market, such as chinese patent publication No. CN 209578386U, published by grant No. 2019.11.05, which is a patent application of a cylindrical gear workpiece clamping device for gear grinding, comprising a connecting disc fastened on a gear grinding machine by bolts, a taper mandrel in concave-convex combination and fastened on the connecting disc by hexagon socket head cap bolts, a base mounted on the taper mandrel by fastening bolts and used for positioning the cylindrical gear workpiece, a connecting rod having an internal thread at one end and an external thread at the other end and connected with a gear grinding machine driving system, a pull rod connected with the internal thread of the connecting rod in a threaded fit manner and provided with steps, a cylindrical gear workpiece mounted on the base, an elastic expansion sleeve mounted between a central hole surface of the cylindrical gear and an outer conical surface of the taper mandrel, and a pressing cap mounted above the elastic expansion sleeve, the fastening nut is installed at the tail end of the pull rod through threaded connection and fastens the elastic expansion sleeve and the pressing cap, and the pressing cover is installed on the working end face of the cylindrical gear and connected with a gear grinding machine driving system. Above-mentioned patent application adopts the dual clamping work piece structure of elasticity cover and gland that rises, has simplified the clamping location process of gear workpiece to a certain extent, but still need replace the work piece through the dismouting gland, and the process is loaded down with trivial details, and can't realize that the circumference of work piece is fixed, leads to the work piece to rotate easily, leads to the chamfer to appear the deviation, influences product machining precision, causes unnecessary economic loss.

Disclosure of Invention

1. Technical problem to be solved by the utility model

The utility model discloses an overcome current gear workpiece clamping device and have that operating procedure is loaded down with trivial details, the poor scheduling problem of work piece circumference fixed stability, provide a center shell type beveler quick clamping frock that rises, adopt the technical scheme of the utility model, it is protruding to establish the cover that rises through the cover outside ring that rises for the cover that rises contacts through the post that rises of pull rod and central positioning flange and rises and tightly, rises to rise to the work piece center and tightly center the while, utilizes the cover that rises to arch carry on spacingly to the work piece axial, utilizes the location portion of chuck circumference to fix a position work piece circumference simultaneously, guarantees that the work piece clamping is firm stable, clamping convenient operation, and clamping positioning accuracy is high.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

the utility model discloses a center cover formula beveler quick clamping frock that rises, including chuck, central flange, pull rod and the cover that rises, chuck fixed mounting on the beveler, central flange fixed mounting on the chuck to concentric with the chuck, central flange's center department be equipped with the post that rises, the center department of the post that rises be equipped with the through-hole that rises, the pull rod pass the through-hole, the one end fixed mounting that the pull rod is close to the chuck have with the above-mentioned post matched with that rises the cover that rises, the cover outside ring that rises be equipped with the cover arch that rises that is used for restricting work piece axial displacement, the chuck on fixed mounting be used for fixed work piece circumferential direction's location portion.

Furthermore, the tensioning column is provided with a tensioning inclined surface, and the inner side of the tensioning sleeve is annularly provided with a tensioning sleeve inclined surface matched with the tensioning inclined surface of the tensioning column.

Furthermore, the expansion sleeve inclined plane is arranged at one end of the expansion sleeve close to the central positioning flange, and the expansion sleeve bulge is arranged behind the expansion sleeve inclined plane.

Furthermore, the workpiece is a gear part with a tooth shape on the periphery, the positioning part comprises a tooth-shaped block, the tooth-shaped block is arranged on the side edge of the chuck through a bolt, and the tooth-shaped block is provided with circumferential positioning teeth matched with the tooth shape on the periphery of the workpiece.

Furthermore, the side edge of the chuck is provided with a tooth-shaped groove matched with the circumferential positioning teeth of the tooth-shaped block, and the tooth-shaped block is positioned and arranged on the tooth-shaped groove and is fixed by a bolt.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with existing well-known technique, have following beneficial effect:

(1) the utility model discloses a quick clamping frock of cover formula beveler rises in center, including chuck, central locating flange, pull rod and the cover that rises, chuck fixed mounting is on the beveler, central locating flange fixed mounting is on the chuck, and concentric with the chuck, the center department of central locating flange is equipped with the tight post that rises, the center department of tight post that rises is equipped with the through-hole, the pull rod passes the through-hole, the one end fixed mounting that the pull rod is close to the chuck has the cover that rises with the above-mentioned tight post that rises, the cover outside ring that rises is equipped with and is used for restricting the cover arch that rises of work piece axial displacement, fixed mounting has the location portion that is used for fixed work piece circumferential direction on the chuck; through the structure, the expansion sleeve is in contact with and is tensioned through the tension column of the pull rod and the central positioning flange, the expansion sleeve is expanded through the expansion sleeve protrusion, the expansion sleeve protrusion abuts against the workpiece, axial tension is applied to the workpiece, the expansion sleeve is prevented from falling to the outer side, circumferential rotation of the workpiece is limited through the positioning portion, workpiece clamping is guaranteed to be firm and stable, clamping operation is convenient and fast, and clamping positioning accuracy is high.

(2) The utility model discloses a quick clamping frock of central rise cover formula beveler, the tight inclined plane that rises is equipped with on the tight post that rises, the cover inclined plane that rises inboard ring is equipped with and rises the tight inclined plane looks adaptation of post that rises; the expansion sleeve is matched with the tensioning inclined plane, so that the expansion sleeve is ensured to enter the central positioning flange through the expansion sleeve inclined plane, and is matched and tensioned with the tensioning inclined plane on the tensioning column to perform central positioning on the workpiece.

(3) The utility model discloses a quick clamping frock of cover formula beveler rises in center, the cover inclined plane that rises sets up the one end that is close to central positioning flange at the cover that rises, the protruding setting of cover that rises is at the rear on the cover inclined plane that rises, through above-mentioned structure, can guarantee that the cover that rises gets into central positioning flange through the cover inclined plane that rises earlier, the cover that rises contacts and rises through the cover inclined plane that rises on the cover inclined plane that rises and the post that rises, the cover arch that rises can be completely with the work piece butt on the chuck after the cover that rises, the axial action of restriction work piece, the clamping is more firm stable.

(4) The utility model discloses a quick clamping frock of center cover-expanding beveler, the work piece is that the periphery has the gear part of profile of tooth, location portion includes the profile of tooth piece, and the profile of tooth piece is installed at the chuck side through the bolt, has the circumference location tooth that matches with the peripheral profile of tooth of work piece on the profile of tooth piece; the circumferential positioning teeth of the tooth-shaped block are matched with the tooth form of the workpiece, so that the circumferential rotation of the workpiece is limited, and the workpiece is prevented from being scrapped and causing unnecessary economic loss due to the fact that the workpiece circumferentially rotates on the chuck when the chamfering machine works.

(5) The utility model discloses a quick clamping frock of central cover-expanding type chamfering machine, the side of chuck is equipped with the tooth form groove that matches with the circumferential direction positioning tooth of above-mentioned tooth form piece, and tooth form piece location is installed on tooth form groove, and passes through the bolt fastening; the tooth-shaped block is fixedly arranged on the side edge of the chuck through the tooth-shaped groove, so that the tooth-shaped block is convenient to position and install on the chuck, and the stable structure for circumferentially fixing the workpiece by the tooth-shaped block is further ensured.

Drawings

Fig. 1 is a schematic structural view of a quick clamping tool of a central expanding sleeve type chamfering machine of the present invention;

fig. 2 is a schematic view of a workpiece clamping structure of the quick clamping tool for the center expanding sleeve type chamfering machine of the present invention;

fig. 3 is a side view of the quick clamping tool for the center expanding sleeve type chamfering machine of the present invention;

FIG. 4 is a cross-sectional view at AA in FIG. 3;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

fig. 6 is the utility model discloses a clamping state schematic diagram of the quick clamping frock of center cover formula beveler that rises.

The reference numerals in the schematic drawings illustrate:

1. a pull rod; 2. a chuck; 2-1, a tooth-shaped groove; 3. expanding sleeves; 3-1, bulging the expansion sleeve; 3-2, expanding sleeve inclined plane; 4. a workpiece; 5. a toothed block; 6. a central positioning flange; 6-1, tensioning columns; 6-11 parts of a tensioning inclined plane.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

[ examples ]

Referring to fig. 1, 2 and 5, the center expansion sleeve type chamfering machine quick clamping tool of the embodiment includes a chuck 2, a center positioning flange 6, a pull rod 1 and an expansion sleeve 3, the chuck 2 is fixedly mounted on the chamfering machine, the center positioning flange 6 is fixedly mounted on the chuck 2 and is concentric with the chuck 2, a tension column 6-1 is arranged at the center of the center positioning flange 6, a through hole is formed at the center of the tension column 6-1, the pull rod 1 penetrates through the through hole, an expansion sleeve 3 matched with the tension column 6-1 is fixedly mounted at one end of the pull rod 1 close to the chuck 2, an expansion sleeve protrusion 3-1 for limiting axial movement of a workpiece 4 is annularly arranged on the outer side of the expansion sleeve 3, and a positioning portion for fixing circumferential rotation of the workpiece 4 is fixedly mounted on the chuck 2. Specifically, a chuck mounting hole and a central positioning flange mounting hole are formed in the chuck 2, the chuck mounting hole is formed in the periphery of the central positioning flange mounting hole, the chuck 2 penetrates through the chuck mounting hole through a bolt to be connected to the chamfering machine in a threaded mode, the central positioning flange 6 is connected to the chuck 2 through the central positioning flange mounting hole in a flange mode, a central hole of the workpiece 4 is sleeved on the expansion sleeve 3 and abuts against the chuck 2, one end, far away from the chuck 2, of the pull rod 1 is connected with a pull rod power mechanism, the pull rod 1 is driven to move through the pull rod power mechanism, and therefore the expansion sleeve 3 is driven to be in contact with and tensioned with a tensioning column 6-1 of the central positioning flange 6, the workpiece 4 is positioned on the chuck 2. The pull rod power mechanism can adopt a hydraulic cylinder, but is not limited to the hydraulic cylinder.

In the embodiment shown in fig. 5, in order to ensure that the expansion sleeve 3 can enter the central positioning flange 6 and cooperate with the tension column 6-1 to cause the expansion sleeve 3 to be tensioned, the tension column 6-1 is provided with a tension inclined surface 6-11, and the inner side of the expansion sleeve 3 is annularly provided with an expansion sleeve inclined surface 3-2 matched with the tension inclined surface 6-11 of the tension column 6-1; after the expansion sleeve inclined surface 3-2 is contacted with the expansion inclined surface 6-11, the side wall of the expansion sleeve 3 is expanded outwards under the action of conical surface expansion, so that the expansion sleeve 3 is ensured to be matched with the expansion inclined surface 6-11 on the expansion column 6-1 and expand the workpiece 4, and the workpiece 4 is centered.

As shown in FIG. 6, in this embodiment, in order to ensure that the sleeve protrusion 3-1 can stably fix the workpiece 4 on the chuck 2 and limit the axial movement of the workpiece 4, the sleeve inclined surface 3-2 is disposed at one end of the sleeve 3 close to the central positioning flange 6, the sleeve protrusion 3-1 is disposed behind the sleeve inclined surface 3-2, the sleeve 3 firstly enters the tension column 6-1 of the central positioning flange 6 through the sleeve inclined surface 3-2, the sleeve 3 is tensioned, and simultaneously, the workpiece 4 is tensioned by the sleeve protrusion 3-1 behind the sleeve protrusion to perform axial positioning of the workpiece 4, so that the tensioning force of the sleeve 3 on the workpiece 4 is more direct, and the clamping is more firm and stable.

As shown in fig. 1, 2 and 3, in the present embodiment, the workpiece 4 is a gear part having a tooth profile on the periphery, the positioning portion includes a tooth-shaped block 5, the tooth-shaped block 5 is mounted on the side of the chuck 2 by a bolt, and the tooth-shaped block 5 has a circumferential positioning tooth adapted to the tooth profile on the periphery of the workpiece 4; specifically, two bolt holes are formed in the tooth-shaped block 5, the tooth-shaped block is fixed to the chuck 2 through bolts, circumferential positioning teeth on the tooth-shaped block 5 are matched with the peripheral tooth shape of the workpiece 4 in a positioning mode to limit circumferential rotation of the workpiece 4, and clamping and positioning are simpler and more convenient.

As shown in fig. 2 and 3, a toothed groove 2-1 matched with the circumferential positioning teeth of the toothed block 5 is formed in the side edge of the chuck 2, and the toothed block 5 is positioned and installed on the toothed groove 2-1 and fixed through bolts; the tooth-shaped block 5 is fixedly arranged on the side edge of the chuck 2 through the tooth-shaped groove 2-1, so that the positioning and the installation of the tooth-shaped block 5 on the chuck 2 are facilitated, and the stable structure of the workpiece circumferentially fixed by the tooth-shaped block 5 is further ensured.

In order to further understand the technical scheme of the utility model, the working principle of the quick clamping tool for the central expanding sleeve type chamfering machine of the utility model is further explained by combining with fig. 1, fig. 2, fig. 4, fig. 5 and fig. 6.

The utility model discloses a quick clamping frock of center cover-expanding beveler, when using, pass the work piece 4 and rise set 3 and install on chuck 2, the circumference of the work piece 4 is realized to the circumference spacing that the circumference positioning tooth of the profile of tooth piece 5 of chuck 2 side and the periphery profile of tooth positioning cooperation of work piece 4, as shown in figure 5; then, the pull rod 1 is driven to move through the pull rod power mechanism, the expansion sleeve 3 is matched with the expansion column 6-1 of the central positioning flange 6 under the action of the pull rod 1, so that the expansion sleeve 3 is expanded outwards to perform central positioning on the workpiece 4, and meanwhile, the expansion sleeve bulge 3-1 is abutted against the workpiece 4 to realize axial positioning, as shown in fig. 6; at this time, the chamfering machine works to chamfer the workpiece 4. After the machining is finished, the pull rod power mechanism drives the pull rod 1 to move reversely, so that the expansion sleeve 3 contracts to loosen the workpiece 4, and the workpiece 4 can be taken down.

The utility model discloses a center cover formula beveler quick clamping frock that rises, it contacts and rises tightly with the post that rises of central positioning flange to drive the cover action that rises through the pull rod, carry out the central location to the work piece, the cover inclined plane that rises through the cover inside wall that rises cooperates with the post that rises of central positioning flange's the inclined plane that rises, it can rise through the post contact that rises of the cover inclined plane that rises with central positioning flange earlier to guarantee to rise the cover, and it is protruding to lie in the cover that rises outside ring established at cover inclined plane rear that rises through setting up, rise the cover and rise simultaneously with the work piece butt, the axial action of restriction work piece, it is spacing with the periphery tooth of work piece side with the dentate piece that sets up through the chuck side, the circumference action of restriction work piece, fix the work piece on the chuck, when having realized the quick change formula clamping, the stability and the reliability of work piece processing have been guaranteed.

The present invention and its embodiments have been described above schematically, and the description is not intended to be limiting, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without creatively designing the similar structural modes and embodiments to the technical solutions, they should belong to the protection scope of the present invention.

Claims

1. The utility model provides a center cover formula beveler that rises quick clamping frock, includes chuck (2), central flange (6), pull rod (1) and the cover (3) that rises, chuck (2) fixed mounting on the beveler, central flange (6) fixed mounting on chuck (2) to concentric with chuck (2), the center department of central flange (6) be equipped with and rise post (6-1), the center department of rising post (6-1) be equipped with the through-hole, pull rod (1) pass the through-hole, pull rod (1) be close to chuck (2) one end fixed mounting have with above-mentioned the post (6-1) matched with that rises cover (3), its characterized in that: the outer side of the expansion sleeve (3) is annularly provided with expansion sleeve protrusions (3-1) used for limiting the axial movement of the workpiece (4), and the chuck (2) is fixedly provided with a positioning part used for fixing the circumferential rotation of the workpiece (4).

2. The quick clamping tool for the center expanding sleeve type chamfering machine according to claim 1, wherein the tool comprises: the tensioning column (6-1) is provided with a tensioning inclined plane (6-11), and the inner side of the tensioning sleeve (3) is annularly provided with a tensioning sleeve inclined plane (3-2) matched with the tensioning inclined plane (6-11) of the tensioning column (6-1).

3. The quick clamping tool for the center expanding sleeve type chamfering machine according to claim 2, wherein the tool comprises: the expansion sleeve inclined plane (3-2) is arranged at one end of the expansion sleeve (3) close to the central positioning flange (6), and the expansion sleeve bulge (3-1) is arranged behind the expansion sleeve inclined plane (3-2).

4. The quick clamping tool for the center expanding sleeve type chamfering machine according to claim 1, 2 or 3, wherein: the workpiece (4) is a gear part with the periphery having a tooth shape, the positioning part comprises a tooth-shaped block (5), the tooth-shaped block (5) is installed on the side edge of the chuck (2) through a bolt, and the tooth-shaped block (5) is provided with circumferential positioning teeth matched with the tooth shape of the periphery of the workpiece (4).

5. The quick clamping tool for the center expanding sleeve type chamfering machine according to claim 4, wherein the tool comprises: the side edge of the chuck (2) is provided with a tooth-shaped groove (2-1) matched with the circumferential positioning teeth of the tooth-shaped block (5), and the tooth-shaped block (5) is positioned and installed on the tooth-shaped groove (2-1) and fixed through bolts.