CN221891064U - Self-centering gear shaping positioning tool - Google Patents

Abstract

The utility model discloses a self-centering gear-slotting positioning tool, which relates to the field of mechanical processing technology, including a pressing plate, a support platform arranged at the bottom of the pressing plate, and a workpiece arranged between the pressing plate and the support platform, and also includes: a positioning mechanism, the positioning mechanism is arranged between the pressing plate and the support platform; the positioning mechanism includes a limiting unit arranged at the bottom of the pressing plate, a threaded seat arranged at the center of the bottom of the pressing plate, and a locking unit arranged at the bottom of the threaded seat, the limiting unit includes a slide groove arranged at the bottom of the pressing plate, a slider movably arranged inside the slide groove, and an elastic member arranged between the slider and a side wall of the slide groove, and one end of a limiting rod is installed at the bottom of the slider, and the other end of the limiting rod abuts against the inner ring side wall of the workpiece. The utility model is a self-centering gear-slotting positioning tool, which facilitates the disassembly and assembly of the workpiece through the positioning mechanism, thereby improving work efficiency.

Description

A self-centering gear shaping positioning tool

Technical Field

The utility model relates to the technical field of mechanical processing, in particular to a self-centering gear shaping positioning tool.

Background Art

The gear shaping machine uses a gear shaping cutter as a tool to process the tooth shape of gears, racks, etc. When shaping gears, the gear shaping cutter makes a reciprocating cutting motion up and down, and rolls relative to the workpiece at the same time.

A self-centering gear shaping tool is disclosed in the publication (announcement) number: CN212793420U, which is characterized in that it includes a support member, a centering mechanism, a workpiece, and a pressure plate; the support member is at the bottom of the entire tooling structure, the upper end face of the support member is circular, and a circular hole is opened in the center; the centering mechanism is installed and fixed in the central circular hole of the support member; the workpiece is on the support member; the pressure plate is above the workpiece; the centering mechanism includes a sleeve, a locating pin, an adjusting screw, and a nut; the sleeve is on the upper end face of the support member, and six evenly divided circular holes are opened in the radial direction of the sleeve; there are six locating pins, which are respectively in the six circular holes of the sleeve; the nut is fixedly installed on the lower end face of the support member; the adjusting screw is on the nut; the six locating pins of the centering mechanism can effectively ensure the accuracy of the tooling under long-term clamping conditions; the centering mechanism uses screws and nuts for centering, which is simple and convenient.

Although the above scheme has the advantage of ensuring the accuracy of clamping precision, it positions the workpiece by means of positioning pins, which makes it inconvenient to disassemble the workpiece, resulting in low work efficiency. For this reason, we propose a self-centering gear positioning tool.

Utility Model Content

The main purpose of the utility model is to provide a self-centering gear slotting positioning tool, which solves the problem of positioning the workpiece by the positioning pin, which makes it inconvenient to disassemble the workpiece and leads to low work efficiency through the provided positioning mechanism.

In order to achieve the above purpose, the utility model provides the following technical solutions:

A self-centering gear shaping positioning tool comprises a pressing plate, a support platform arranged at the bottom of the pressing plate, and a workpiece arranged between the pressing plate and the support platform, and further comprises:

A positioning mechanism, wherein the positioning mechanism is arranged between the pressing plate and the supporting platform;

The positioning mechanism comprises a limiting unit arranged at the bottom of the pressing plate, a threaded seat arranged at the center of the bottom of the pressing plate, and a locking unit arranged at the bottom of the threaded seat.

Preferably, a fixing column is installed on the top of the pressure plate, a fixing plate is installed on the top of the fixing column, and a mounting hole is opened at the edge of the fixing plate.

Preferably, there are two groups of the limiting units, and the two groups of the limiting units are arranged oppositely at the bottom of the pressing plate.

Preferably, the limiting unit includes a slide groove arranged at the bottom of the pressure plate, a slider movably arranged inside the slide groove, and an elastic member arranged between the slider and a side wall of the slide groove. One end of a limiting rod is installed at the bottom of the slider, and the other end of the limiting rod abuts against the inner ring side wall of the workpiece.

Preferably, the locking unit comprises a threaded barrel installed at the center of the support platform, a screw threadedly connected to the middle of the threaded barrel, and a conical block installed on the surface of the screw, and the outer surface of the conical block abuts against the side of the limiting rod.

Preferably, one end of the screw is threadedly connected to the inner wall of the threaded seat.

Preferably, the bottom end of the screw rod extends to the outside of the threaded barrel, and a handle is installed at the bottom end of the screw rod.

Compared with the prior art, the utility model has the following beneficial effects:

In the utility model, the workpiece is placed at the bottom of the pressure plate through the positioning mechanism, and the elastic extrusion effect of the elastic member makes the slider slide along the inside of the slide groove, and when the slider moves, it drives the end of the limit rod to abut against the inner ring side wall of the workpiece, so as to initially limit the workpiece, and the support table is placed at the bottom of the workpiece, and the screw and the threaded seat are located on the same vertical line, and the screw is rotated so that one end of the screw is threadedly connected with the threaded seat. When the screw rotates, it drives the conical block to abut against the limit rod, so that the limit rod is tightly abutted against the inner ring side wall of the workpiece, so as to cooperate with the support table and the pressure plate to clamp and limit the workpiece. When the workpiece needs to be disassembled, the screw and the threaded seat can be separated by rotating the handle in the opposite direction, which facilitates the disassembly and assembly of the workpiece and improves work efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall three-dimensional structure of the utility model;

Fig. 2 is a top view of the utility model;

Fig. 3 is a schematic diagram of the cross-sectional structure of the utility model at A-A in Fig. 2;

FIG4 is an enlarged schematic diagram of the structure of point B in FIG3 of the present invention;

FIG5 is an enlarged structural schematic diagram of point C in FIG3 of the present invention.

In the figure:

Pressing plate; 11. Fixing column; 12. Fixing plate;

Support table;

Workpieces;

Positioning mechanism; 41, limiting unit; 411, sliding block; 412, elastic member; 413, limiting rod; 42, threaded seat; 43, locking unit; 431, threaded barrel; 432, screw; 433, conical block.

DETAILED DESCRIPTION

In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

Embodiment: As shown in FIGS. 1-5 , a self-centering gear shaping positioning tool comprises a pressing plate 1, a support platform 2 disposed at the bottom of the pressing plate 1, and a workpiece 3 disposed between the pressing plate 1 and the support platform 2, and further comprises:

A positioning mechanism 4, the positioning mechanism 4 is arranged between the pressing plate 1 and the supporting platform 2;

The positioning mechanism 4 includes a limiting unit 41 disposed at the bottom of the pressing plate 1 , a threaded seat 42 disposed at the center of the bottom of the pressing plate 1 , and a locking unit 43 disposed at the bottom of the threaded seat 42 .

A fixing column 11 is installed on the top of the pressing plate 1 , and a fixing plate 12 is installed on the top of the fixing column 11 . A mounting hole is provided at the edge of the fixing plate 12 to facilitate fixing and connecting the pressing plate 1 .

There are two groups of the limiting units 41 , and the two groups of the limiting units 41 are relatively arranged at the bottom of the pressing plate 1 . The two groups of the limiting units 41 are arranged to stably limit the workpiece 3 .

The limiting unit 41 includes a slide groove arranged at the bottom of the pressure plate 1, a slider 411 movably arranged inside the slide groove, and an elastic member 412 arranged between the slider 411 and a side wall of the slide groove. One end of a limiting rod 413 is installed at the bottom of the slider 411, and the other end of the limiting rod 413 abuts against the inner ring side wall of the workpiece 3. Preferably, the elastic member 412 is a spring, the limiting rod 413 is an L-shaped structure, and the bottom surface of the end of the limiting rod 413 is a beveled surface.

The locking unit 43 includes a threaded barrel 431 installed at the center of the support platform 2, a screw rod 432 threadedly connected to the middle of the threaded barrel 431, and a conical block 433 installed on the surface of the screw rod 432. The outer surface of the conical block 433 abuts against the side of the limiting rod 413.

One end of the screw rod 432 is threadedly connected to the inner wall of the threaded seat 42 .

The bottom end of the screw rod 432 extends to the outside of the threaded barrel 431 , and a handle is installed at the bottom end of the screw rod 432 .

When limiting the workpiece 3, first place the workpiece 3 at the bottom of the pressure plate 1, and cooperate with the elastic squeezing effect of the elastic member 412 to make the slider 411 slide along the inside of the slide groove. When the slider 411 moves, it drives the end of the limiting rod 413 to abut against the inner ring side wall of the workpiece 3, thereby preliminarily limiting the workpiece 3. Then place the support platform 2 at the bottom of the workpiece 3, and make the screw 432 and the threaded seat 42 located on the same vertical line. By rotating the screw 432, one end of the screw is threadedly connected to the threaded seat 42. When rotating, the screw 432 will drive the conical block 433 to abut against the limiting rod 413, so that the limiting rod 413 is tightly abutted against the inner ring side wall of the workpiece 3, thereby cooperating with the support platform 2 and the pressure plate 1 to clamp and limit the workpiece 3. When the workpiece 3 needs to be disassembled, the screw 432 can be separated from the threaded seat 42 by rotating the handle in the opposite direction.

Claims (7)

1. The utility model provides a from centering gear shaping location frock, includes clamp plate (1), sets up in brace table (2) of clamp plate (1) bottom and sets up work piece (3) between clamp plate (1) and brace table (2), its characterized in that still includes:

The positioning mechanism (4) is arranged between the pressing plate (1) and the supporting table (2);

The positioning mechanism (4) comprises a limiting unit (41) arranged at the bottom of the pressing plate (1), a threaded seat (42) arranged at the center of the bottom of the pressing plate (1) and a locking unit (43) arranged at the bottom of the threaded seat (42).

2. The self-centering gear shaping positioning tool according to claim 1, wherein: the fixing device is characterized in that a fixing column (11) is arranged at the top of the pressing plate (1), a fixing plate (12) is arranged at the top of the fixing column (11), and a mounting hole is formed in the edge position of the fixing plate (12).

3. The self-centering gear shaping positioning tool according to claim 2, wherein: the number of the limiting units (41) is two, and the two limiting units (41) are oppositely arranged at the bottom of the pressing plate (1).

4. A self-centering gear shaping positioning tool as claimed in claim 3, wherein: the limiting unit (41) comprises a sliding groove arranged at the bottom of the pressing plate (1), a sliding block (411) movably arranged in the sliding groove, and an elastic piece (412) arranged between the sliding block (411) and one side wall of the sliding groove, wherein one end of a limiting rod (413) is arranged at the bottom of the sliding block (411), and the other end of the limiting rod (413) is abutted against the inner ring side wall of the workpiece (3).

5. The self-centering gear shaping positioning tool according to claim 4, wherein: the locking unit (43) comprises a threaded cylinder (431) arranged at the center of the supporting table (2), a screw rod (432) in the middle of the threaded cylinder (431) in a threaded connection mode, and a conical block (433) arranged on the surface of the screw rod (432), wherein the outer surface of the conical block (433) abuts against the side face of the limiting rod (413).

6. The self-centering gear shaping positioning tool according to claim 5, wherein: one end of the screw rod (432) is in threaded connection with the inner wall of the threaded seat (42).

7. The self-centering gear shaping positioning tool according to claim 6, wherein: the bottom end of the screw rod (432) extends to the outer side of the threaded cylinder (431), and a handle is arranged at the bottom end of the screw rod (432).