CN218946542U - Gear hobbing processing positioning tool - Google Patents

Abstract

The utility model discloses a hobbing positioning tool, which comprises a base, a pull rod, a fixed seat, a connecting disc, a connecting rod, a pressing plate, a positioning sleeve, an expansion sleeve, a conical seat, a push rod and a tip, wherein the fixed seat is connected to the base, the pull rod is arranged in the base, a mounting groove is formed inwards along the end wall of the fixed seat, the connecting disc is movably arranged in the mounting groove, a plurality of springs are arranged between the connecting disc and the bottom wall of the mounting groove, one end of the connecting rod is connected to the connecting disc, the other end of the connecting rod is provided with the pressing plate, the positioning sleeve is connected to the fixed seat, the conical seat is arranged on the connecting rod between the pressing plate and the connecting disc and is fixedly connected with the fixed seat, the expansion sleeve is arranged in the positioning sleeve and is sleeved outside the conical seat, the pressing plate can be abutted against the end face of the expansion sleeve, two ends of the push rod are respectively connected with the expansion sleeve and the connecting disc, and the tip and the expansion sleeve are oppositely arranged to the end face of a part. The positioning mode that this application combines through adopting inside tensioning and terminal surface to compress tightly the mode, and the location is stable, is difficult for damaging the part.

Description

Gear hobbing processing positioning tool

Technical Field

The utility model relates to the technical field of automobile part machining, in particular to a gear hobbing machining positioning tool.

Background

In the production processing process of automobile parts, the parts are required to be subjected to gear hobbing processing, so that the parts are required to be positioned, the existing positioning tool basically adopts an end face compacting or internal tensioning mode for positioning, but for parts with small sizes and thin walls, the existing positioning tool is unstable in positioning due to large positioning difficulty and easy to deform the parts.

Disclosure of Invention

For solving the not enough of prior art, this application provides gear hobbing processing location frock, including base, pull rod, fixing base, connection pad, connecting rod, clamp plate, spacer sleeve, cover that rises, conical seat, ejector pin and top, the fixing base is connected to the base, the pull rod sets up in the base, follows the fixing base end wall inwards sets up the mounting groove, the connection pad is movable to be set up in the mounting groove, the connection pad with set up a plurality of springs between the diapire of mounting groove, the one end of connecting rod is connected to the connection pad, the other end sets up the clamp plate, the spacer sleeve is connected to the fixing base, the conical seat sets up on the connecting rod between clamp plate and the connection pad and with fixing base fixed connection, cover that rises sets up in the spacer sleeve and overlaps in the conical seat outside, the clamp plate can with the terminal surface butt that rises the cover, cover and connection pad are connected respectively to the both ends of ejector pin with cover that rises sets up relatively and is used for compressing tightly the part terminal surface.

Further, a plurality of through pin holes are formed in the side wall of the fixing base, locking pins are arranged in the pin holes, and one ends of the locking pins are in butt joint with the conical seat.

Further, the ejector rod comprises a plurality of fixing seats and penetrates through the fixing seats.

Further, the conical seat comprises a cylindrical portion and a conical portion, and one end of the conical portion can be abutted against the pressing plate.

Further, top includes roof and floating rod, the tip of floating rod sets up the ball that compresses tightly, set up on the roof with compress tightly ball matched spherical groove, floating rod and roof constitute through compressing tightly the ball and float and be connected, make the location more stable through the mode that compresses tightly that floats.

Further, the expansion sleeve protrudes out of the positioning sleeve to form an expansion surface for expanding the part.

The beneficial point of the application lies in: the gear hobbing processing positioning tool adopts a positioning mode that the internal tensioning mode and the end face compacting mode are combined, the parts are tensioned through spring force, the parts cannot deform, the end faces are compacted in a floating mode, positioning is stable, and the parts are not easy to damage.

Drawings

FIG. 1 is a schematic structural view of an embodiment of a hobbing positioning tool of the present application;

FIG. 2 is a schematic view of the internal structure of the fixing base and the positioning sleeve in FIG. 1;

FIG. 3 is a schematic view of the fixing base in FIG. 1;

FIG. 4 is a schematic view of the conical seat in FIG. 2;

FIG. 5 is a schematic view of the tip structure of FIG. 1;

fig. 6 is a schematic view of the structure of the base and the pull rod in fig. 1.

Marked in the figure as: 10. the device comprises a base, 11, a fixed seat, 111, a mounting groove, 112, a positioning groove, 113, a pin hole, 12, a positioning sleeve, 13, a top plate, 14, a floating rod, 141, a compression ball, 142, a threaded hole, 15, a part, 16, a connecting disc, 17, a connecting rod, 18, a pressing plate, 19, a conical seat, 191, a cylindrical part, 192, a conical part, 193, a locking part, 20, an expanding sleeve, 21, a top rod, 22, a spring, 23 and a pull rod.

Detailed Description

The utility model will be described in further detail below with reference to the drawings and to specific examples.

Referring to fig. 1-6, this embodiment provides a gear hobbing processing positioning fixture, including the base 10 that loops through bolted connection, fixing base 11 and locating sleeve 12, be provided with pull rod 23 in the base 10, inwards set up mounting groove 111 along fixing base 11 diapire, the mounting groove 111 internalization sets up connection pad 16, set up the connecting rod 17 that runs through fixing base 11 and locating sleeve 12 on the connection pad 16, the free end of connecting rod 17 sets up clamp plate 18, the one end that is close to the clamp plate on connecting rod 17 sets up conical seat 19, one end fixed connection to the fixing base of conical seat 19, conical seat 19 outside cover is established and is expanded cover 20, the locating sleeve 12 is in the shape setting of adaptation expansion cover outside, still set up ejector pin 21 between expansion cover 20 and the connection pad 16, the both ends of ejector pin 21 are connected with expansion cover and connection pad respectively, wherein, the terminal surface butt of ejector pin and connection pad can both be fixed connection or butt, ejector pin and expansion cover adopt the butt.

Specifically, three groups of positioning grooves 112 are circumferentially formed in the bottom wall of the mounting groove 111, a spring 22 is arranged in the positioning groove 112, a groove is formed in the connecting disc, the other end of the spring 22 is connected into the groove, three groups of ejector rods 21 are arranged in the same manner and penetrate through the fixing seat, and the other end of the ejector rods is abutted against the bottom wall of the expansion sleeve 20.

Preferably, the conical seat 19 comprises a cylindrical portion 191, a conical portion 192 and a locking portion 193, wherein the cylindrical portion 191 is arranged between the conical portion 192 and the locking portion 193, one end of the conical portion 192 can be abutted against a pressing plate, a plurality of through pin holes 113 are formed in the side wall of the fixing seat 11, locking pins are arranged in the pin holes 113, one end of each locking pin is abutted against the locking portion 193, a tensioning sleeve 20 is sleeved outside the cylindrical portion and the conical portion, and a tensioning surface for positioning and tensioning parts is formed by the tensioning sleeve 20 protruding out of the positioning sleeve 12.

In order to compress tightly the part from the terminal surface after the part is installed on the cover that rises, the terminal surface position of part is provided with top, and top includes roof 13 and floating rod 14, and roof 13 is used for compressing tightly the part terminal surface, and the tip of floating rod 14 sets up the ball 141 that compresses tightly, sets up the spherical groove rather than corresponding on the roof 13, in addition, still sets up screw hole 142 on the floating rod 14, and the floating rod passes through the screw to be connected with the roof, when the assembly, does not screw up, through the cooperation in ball 141 and spherical groove in order to realize floating the compaction.

Working principle: the whole positioning tool is arranged on a machine tool, the top part is arranged on another device capable of driving the whole positioning tool to compress, before the positioning tool is arranged, a pull rod 23 is driven by the machine tool to move towards a connecting disc 16, a movable disc 16 drives a pressing plate 18 to move outwards through a connecting rod 17, an expansion sleeve 20 is driven to move outwards through a push rod 21 until a spring 22 is compressed, after the expansion sleeve and the pressing plate are ejected out, a primary centering effect can be achieved on a part 15, then the part 15 is arranged on the expansion sleeve 20, after the positioning tool is arranged, the pull rod 23 is reset, due to the action of the spring force, the connecting disc 16 also moves towards an initial position and drives a pressing plate 18 to move backwards, and due to the abutting of the push rod 21 and the expansion sleeve, the connecting disc 16 simultaneously drives the push rod to move, at the moment, under the action of a cone seat 19, the pressing plate drives a box sleeve 20 to move inwards, the expansion positioning of the part is completed outwards, and then a floating rod 14 drives a top plate 13 to compress the end face of the part, so that the positioning process is completed; when the part is required to be taken out, the pull rod 23 moves outwards, and the connecting disc 16 ejects the expansion sleeve 20 outwards through the ejector rod 21.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims (6)

1. The utility model provides a gear hobbing processing location frock which characterized in that: including base, pull rod, fixing base, connection pad, connecting rod, clamp plate, spacer sleeve, cover that rises, conical seat, ejector pin and top, the fixing base is connected to the base, the pull rod sets up in the base, follows the fixing base end wall inwards sets up the mounting groove, the connection pad is portable to be set up in the mounting groove, the connection pad with set up a plurality of springs between the diapire of mounting groove, the one end of connecting rod is connected to the connection pad, the other end sets up the clamp plate, the spacer sleeve is connected to the fixing base, conical seat sets up on the connecting rod between clamp plate and the connection pad and with fixing base fixed connection, the cover that rises sets up in the spacer sleeve and the cover is established in the conical seat outside, the clamp plate can with the terminal surface butt that rises the cover, cover and connection pad are connected respectively to the both ends of ejector pin with the cover that rises sets up relatively and is used for compressing tightly the part terminal surface.

2. The gear hobbing positioning tool according to claim 1, wherein: the fixing seat is characterized in that a plurality of penetrating pin holes are formed in the side wall of the fixing seat, locking pins are arranged in the pin holes, and one ends of the locking pins are abutted to the conical seat.

3. The gear hobbing positioning tool according to claim 1, wherein: the ejector rod comprises a plurality of ejector rods and penetrates through the fixing base.

4. The gear hobbing positioning tool according to claim 1, wherein: the conical seat comprises a cylindrical portion and a conical portion, and one end of the conical portion can be abutted against the pressing plate.

5. The gear hobbing positioning tool according to claim 1, wherein: the center comprises a top plate and a floating rod, the end part of the floating rod is provided with a pressing ball, a spherical groove matched with the pressing ball is formed in the top plate, and the floating rod and the top plate are in floating connection through the pressing ball.

6. The gear hobbing positioning tool according to claim 1, wherein: the expansion sleeve protrudes out of the positioning sleeve to form an expansion surface for expanding the part.

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