CN218983975U

CN218983975U - Floating positioning tooth alignment drilling fixture

Info

Publication number: CN218983975U
Application number: CN202223226275.6U
Authority: CN
Inventors: 余宝坤; 崔宝峰; 刘景瑞; 云登武
Original assignee: Shaanxi Fast Gear Co Ltd
Current assignee: Shaanxi Fast Gear Co Ltd
Priority date: 2022-12-02
Filing date: 2022-12-02
Publication date: 2023-05-09
Anticipated expiration: 2032-12-02

Abstract

The utility model relates to a floating positioning tooth alignment drilling fixture which comprises a supporting seat, a long connecting rod, a short connecting rod, a tooth alignment piece and a hinge shaft, wherein the long connecting rod is arranged on the supporting seat; the support seat comprises an annular seat body; the annular seat body is sleeved on the quick-change body; the lower end of the long connecting rod is hinged with one end of the short connecting rod through a hinge shaft; the other end of the short connecting rod is connected with the supporting seat; the tooth aligning piece is connected with the upper end of the long connecting rod. The utility model solves the technical problems of low processing efficiency, interference in the process of loading and unloading parts, crush of the tooth surface of the parts and over-positioning in the prior art, and has the advantages of convenient operation, short time for loading and unloading the parts, high processing efficiency, avoidance of interference to a tooth mechanism, avoidance of crush of the tooth surface and automatic correction of circumferential positioning deviation of the parts.

Description

Floating positioning tooth alignment drilling fixture

Technical Field

The utility model relates to a positioning tooth aligning clamp, in particular to a floating positioning tooth aligning drilling clamp.

Background

For the gear part oil hole processing with the requirement for teeth, the circumferential positioning is carried out by using a tooth processing device after the processing of the teeth, so that the positioning requirement and the positioning precision of the repeated processing of the parts are ensured.

The common part clamping mode is dead spindle positioning centering or expansion sleeve pull rod centering. Dead mandrel positioning, because the positioning part and the inner hole of the part have a gap, a gland is required to be designed to compress the part, the part is prevented from moving, and the processing efficiency is lower. The tension sleeve pull rod is centered, and is clamped by using hydraulic pressure, so that the parts are convenient to assemble and disassemble and are favorable for automatic processing. The part tooth aligning device usually adopts a fixed ball head to position tooth grooves, but for special structural parts, the fixed ball head can have the interference problem in the part assembling and disassembling process, the detachable positioning ball head can reduce the processing efficiency, and meanwhile, the positioning with the tension sleeve pull rod centering fixture can have over-positioning, so that the tooth surface of the part is crushed.

Disclosure of Invention

The utility model aims to provide a floating positioning tooth aligning drilling fixture, which solves the technical problems of low machining efficiency, interference in the process of assembling and disassembling parts, damage to the tooth surface of the parts by pressing and over positioning in the prior art.

The technical scheme of the utility model is as follows:

a floating positioning tooth alignment drilling fixture comprises a supporting seat, a long connecting rod, a short connecting rod and a tooth alignment piece, and is characterized by further comprising a hinge shaft; the supporting seat is an annular seat body; the annular seat body is sleeved on the quick-change body; the lower end of the long connecting rod is hinged with one end of the short connecting rod through a hinge shaft; the other end of the short connecting rod is connected with the supporting seat; the tooth aligning piece is connected with the upper end of the long connecting rod.

For better compressing the tooth aligning piece, the floating positioning tooth aligning drilling clamp can further comprise a torsion spring sleeved on the hinge shaft and used for resetting the long connecting rod to a vertical state.

In order to prevent the torsion spring from moving axially, the floating positioning tooth aligning drilling fixture can further comprise a retainer ring sleeved on the hinge shaft.

In order to prevent the torsion spring from being misplaced, the floating positioning tooth aligning drilling fixture can further comprise torsion spring grooves respectively arranged on the long connecting rod and the short connecting rod and used for placing the torsion spring.

In order to quickly position the short connecting rod, the supporting seat can further comprise a positioning groove arranged at one end of the annular seat body.

In order to avoid crushing the tooth surface, the tooth aligning piece comprises a positioning ball head.

In order to adjust the distance between the ball head and the tooth surface and replace the positioning ball head, the tooth aligning piece can also comprise an adjusting screw fixedly connected with the positioning ball head; one end of the adjusting screw is fixedly connected with the positioning ball head, and the other end of the adjusting screw is in threaded connection with the upper end of the long connecting rod.

The utility model has the beneficial effects that:

1. the utility model adopts the connection mode of the hinge shaft, so the operation is convenient, the part loading and unloading time is reduced, and the processing efficiency is improved;

2. the connecting rod can rotate around the supporting seat, so that the problems of loading and unloading of special structural parts and interference of the tooth aligning mechanism are solved;

3. according to the utility model, as the long and short connecting rods are hinged and connected and the torsion springs are adopted, the positioning ball head is self-adaptive to the position of the part, so that floating positioning is realized, the problem of positioning during the clamping process of the part is avoided, and tooth surface crush injury is avoided;

4. according to the utility model, the torsion spring grooves are formed in the upper connecting rod and the lower connecting rod, radial force is provided by the torsion springs, so that circumferential orientation self-adaption of the parts is realized, the parts are rotated under the action of elasticity, and circumferential positioning deviation of the parts is automatically corrected.

Drawings

FIG. 1 is a schematic view of the installation location of the present utility model;

FIG. 2 is an enlarged view of the floating positioning tooth alignment drill jig of FIG. 1;

FIG. 3 is a left side view of FIG. 2;

FIG. 4 is an enlarged perspective view of a long connecting rod;

FIG. 5 is an enlarged perspective view of a short connecting rod;

FIG. 6 is an enlarged perspective view of the support base;

FIG. 7 is a perspective view of a floating positioning tooth alignment drill jig.

Reference numerals:

the device comprises a 1-floating positioning tooth aligning drilling fixture, a 11-positioning ball head, a 12-long connecting rod, a 13-short connecting rod, a 14-supporting seat, a 15-torsion spring, a 16-retainer ring, a 17-screw, a 18-hinge shaft, a 19-torsion spring groove, a 20-positioning groove, a 2-machined part, a 3-expansion sleeve pull rod assembly, a 4-quick-change body and a 5-hydraulic body.

Detailed Description

The utility model relates to a floating positioning tooth aligning drilling fixture which comprises a supporting seat 14, a long connecting rod 12, a short connecting rod 13, tooth aligning pieces, a hinge shaft 18, a torsion spring 15 and a torsion spring groove 19. The support base 14 includes an annular base body and a positioning groove 20; the annular seat body is sleeved on the quick-change body 4 and is connected with the quick-change body 4 through a screw 17; a positioning groove 20 is provided at one end of the annular seat body for positioning the short connecting rod 13. The lower end of the long connecting rod 12 is hinged with one end of the short connecting rod 13 through a hinge shaft 18, and can also be connected through a connecting pin. The tooth aligning piece comprises a positioning ball head 11 and an adjusting screw rod for adjusting the position of the positioning ball head; one end of the adjusting screw is fixedly connected with the positioning ball head 11, and the other end of the adjusting screw is connected with the upper end of the long connecting rod 12 through threads. The torsion spring 15 is sleeved on the hinge shaft 18, and the hinge shaft 18 uses the retainer ring 16 to limit the axial movement of the hinge shaft, so that the long connecting rod 12 is reset to the vertical state to position the workpiece tooth slot. Torsion spring grooves 19 are provided on the long connecting rod 12 and the short connecting rod 13, respectively, for placing the torsion springs 15.

The working principle of the utility model is as follows:

the utility model relates to a part of a gear box axial oil hole machining clamp, which mainly comprises a hydraulic body 5, a quick-change body 4, an expansion sleeve pull rod assembly 3 and a floating positioning tooth aligning drilling clamp 1, wherein the tooth aligning drilling clamp 1 is improved on the basis of the existing hydraulic body 5, the quick-change body 4 and the expansion sleeve pull rod assembly 3. When the automatic positioning device works, the hydraulic pressure is used for pulling the tension sleeve pull rod assembly 3, under the action of the conical surface of the quick-change body 4 and the conical surface of the tension sleeve pull rod assembly 3, the tension sleeve pull rod assembly 3 is used for tensioning a part, and meanwhile, the floating positioning tooth aligning drilling clamp 1 is in close contact with tooth surfaces on two sides of a tooth slot under the action of the torsion spring 15, so that automatic positioning is realized.

The debugging process of the gear box axial oil hole machining clamp is as follows:

(1) Preparing a clamp and related spare parts, and cleaning the connecting surface of the clamp by using air blowing to ensure that the surface is free of sundries;

(2) The hydraulic body 5, the quick-change body 4, the floating positioning tooth aligning drilling clamp 1 and the expansion sleeve pull rod assembly 3 are sequentially installed;

(3) A long connecting rod 12 of the floating positioning tooth aligning drilling fixture 1 is rotated to install a machined part 2;

(4) The front and back positions of the adjusting screw fixedly connected with the positioning ball head 11 are adjusted by using an inner hexagonal wrench, so that the positioning ball head 11 can be effectively contacted with tooth surfaces at two sides of a tooth socket after the part is clamped;

(5) Clamping the machined part 2, and loosening the workpiece after machining is completed;

(6) And (3) rotating the floating positioning tooth aligning drilling fixture long connecting rod 12, and detaching the machined part 2.

Claims

1. The utility model provides a floating location is to tooth boring grab, includes supporting seat (14), long connecting rod (12), short connecting rod (13), to tooth spare, its characterized in that: also comprises a hinge shaft (18);

the supporting seat (14) is an annular seat body; the annular seat body is sleeved on the quick-change body (4);

the lower end of the long connecting rod (12) is hinged with one end of the short connecting rod (13) through a hinge shaft (18);

the other end of the short connecting rod (13) is connected with the supporting seat (14);

the tooth aligning piece is connected with the upper end of the long connecting rod (12).

2. A floating positioning tooth alignment drill jig as in claim 1 wherein:

the device also comprises a torsion spring (15) sleeved on the hinge shaft (18) and used for resetting the long connecting rod (12) to a vertical state.

3. A floating positioning tooth alignment drill jig as in claim 2 wherein:

the device also comprises a retainer ring (16) sleeved on the hinge shaft (18) and used for limiting the axial movement of the torsion spring (15).

4. A floating positioning tooth alignment drill jig as recited in claim 3, wherein:

the torsion spring device also comprises torsion spring grooves (19) which are respectively arranged on the long connecting rod (12) and the short connecting rod (13) and are used for placing the torsion springs (15).

5. A floating positioning tooth alignment drill jig as in claim 1 or 2 or 3 or 4 wherein:

the supporting seat (14) further comprises a positioning groove (20) arranged at one end of the annular seat body and used for positioning the short connecting rod (13).

6. A floating positioning tooth alignment drill jig as in claim 5 wherein:

the tooth aligning piece comprises a positioning ball head (11).

7. A floating positioning tooth alignment drill jig as in claim 6 wherein:

the tooth aligning piece further comprises an adjusting screw rod for adjusting the position of the positioning ball head; one end of the adjusting screw is fixedly connected with the positioning ball head, and the other end of the adjusting screw is connected with the upper end of the long connecting rod (12) through threads.