CN209439468U - Clamp for shaft sleeve parts - Google Patents

Abstract

The utility model discloses a fixture for shaft sleeve parts, which comprises a jacket. The jacket includes an outer cone section and a mounting section. The mounting section is a hollow tubular structure with an axial straight groove on the surface. The inner surface of the inner surface of the inner cone is processed with a certain taper; the positioning part; the adjustment nut, including the internal thread connection section; the drive assembly, used to drive the adjustment nut to rotate; the mandrel, one end of the mandrel is fixedly connected with the adjustment nut, so as to be connected with the The adjusting nut moves synchronously, and the other end of the mandrel has an outer tapered surface. The utility model promotes deformation and recovery of the installation section through the cooperation of the outer cone surface on the mandrel and the inner cone surface at the end of the installation section of the jacket, thereby clamping and loosening the bushing parts on it , so as to easily realize the clamping and opening of shaft sleeve parts. From the clamping to the processing of the shaft sleeve parts, to the loosening of the shaft sleeve parts, and the removal of the shaft sleeve parts, the headstock does not need to stop during the whole process, which saves the auxiliary time of theoretical processing.

Description

A fixture for shaft sleeve parts

technical field

The utility model relates to a fixture for shaft sleeve parts, which belongs to the technical field of turning processing.

Background technique

When processing shaft sleeve parts in large quantities on a lathe, the operator will often perform chamfering or turning the outer circle on the end of the workpiece, which requires frequent starting, stopping, manual tightening, loosening of the chuck, and calibration. It not only increases the labor intensity of the workers, but also consumes a lot of auxiliary processing time and reduces the processing efficiency.

Utility model content

The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art, and provide a fixture for shaft sleeve parts, which can be flexibly connected with the main shaft to facilitate the installation and disassembly of workpieces.

In order to solve the above-mentioned technical problems, the technical solution of the present invention is: a fixture for shaft sleeve parts, including a jacket used to be fixedly connected in the taper hole of the spindle box. A tapered surface section and an installation section for installing shaft sleeve parts. The installation section is a hollow tubular structure with an axial straight groove on the surface, and a certain tapered inner surface is processed on the inner surface of the end of the installation section. a tapered surface, used to cooperate with the outer tapered surface at one end of the mandrel;

The positioning piece fixedly connected with the headstock, the positioning piece is provided with external threads for adjusting the position of the adjusting nut;

The adjusting nut includes an internal thread connection section, and the internal thread connection section has an internal thread matched with the external thread of the positioning member;

The driving assembly is used to drive the adjusting nut to rotate, so that the adjusting nut moves left and right relative to the positioning member;

Mandrel, one end of the mandrel is fixedly connected with the adjusting nut, so as to move synchronously with the adjusting nut, the other end of the mandrel has an outer cone surface, through the left and right movement of the mandrel, the outer cone surface of the mandrel is squeezed and released. The installation section of the jacket is used to clamp and loosen the sleeve parts through the deformation of the installation section.

Further, the adjusting nut also includes a toothed section, and teeth are provided on the outer peripheral surface of the toothed section, and the driving assembly includes a transmission shaft and a gear driven by the transmission shaft, and the gear meshes with the toothed section of the adjusting nut .

Further, the mandrel passes through the jacket, the positioning piece and the adjusting nut sequentially from right to left, a bearing is installed on the toothed section of the adjusting nut, the adjusting nut supports the mandrel through the bearing, and the core is held by the nut. The shaft is fixed.

Further, the drive assembly further includes a handle, the handle is connected to the transmission shaft through a key, and the handle drives the transmission shaft to rotate.

Adopting the above-mentioned technical scheme, the utility model has the following beneficial effects:

In the utility model, the driving assembly drives the adjusting nut to rotate relative to the positioning piece, and the adjusting nut converts the rotation of the adjusting nut into a movement in the left and right directions through the connection between the internal thread on the adjusting nut and the external thread on the positioning piece, thereby driving the adjustment nut to be fixed. The connected mandrels move left and right synchronously. The right end of the mandrel has an outer cone surface, and through the cooperation of the outer cone surface and the inner cone surface at the end of the installation section of the jacket, the installation section is deformed and deformed, thereby clamping and loosening the shaft sleeved on it. sleeve parts, so as to easily realize the clamping and opening of shaft sleeve parts. From the clamping to the processing of the shaft sleeve parts, to the loosening of the shaft sleeve parts and the removal of the shaft sleeve parts, the headstock does not need to stop during the whole process, which saves the auxiliary time of theoretical processing.

Description of drawings

Fig. 1 is the assembling schematic diagram of the clamp and the spindle box of the axle sleeve parts of the present utility model;

Fig. 2 is the A-A sectional view of Fig. 1;

Fig. 3 is a sectional view of the jacket of the present invention.

Detailed ways

In order to make the content of the utility model more clearly understood, the utility model will be further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.

Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by those skilled in the art to which the present invention belongs. "First", "second" and similar words used in the utility model patent specification and claims do not indicate any order, quantity or importance, but are only used to distinguish different components. Likewise, words like "a" or "one" do not denote a limitation in quantity, but indicate that there is at least one.

As shown in FIGS. 1 to 3 , a fixture for bushing parts includes a jacket 1 , a positioning member 3 , an adjusting nut 4 , a drive assembly and a mandrel 2 . The fixture of the utility model is used to be installed on the spindle box 12, as shown in Figure 1, the head of the spindle box 12 is a tapered hole. Install this fixture on the headstock 12, wherein the jacket 1 is located on one side of the headstock 12, and the positioning part 3 is located on the other side of the headstock 12, that is, the headstock 12 is between the jacket 1 and the locating part 3.

The jacket 1 is used to be fixedly connected in the spindle taper hole of the spindle box 12 . The jacket 1 includes an outer tapered surface section 1-1 matched with the spindle taper hole and an installation section 1-2 for installing a shaft sleeve type part 13 . The outer tapered section 1-1 cooperates with the main shaft taper hole of the main shaft box 12 to realize the co-rotation of the jacket 1 and the main shaft. The installation section 1-2 is a hollow tubular structure with an axial straight groove 1-3 on the surface, and an inner tapered surface 1-4 with a certain taper is processed on the inner surface of the end of the installation section 1-2, and the installation section The inner tapered surface 1-4 at the end of 1-2 is used to cooperate with the outer tapered surface 2-1 at one end of the mandrel 2 .

The positioning piece 3 fixedly connected with the spindle box 12, in this embodiment, the positioning piece 3 adopts a kit, that is, a positioning sleeve, and the positioning sleeve is fastened to the outer wall of the spindle box 12 through the through hole on the end flange of the positioning sleeve. . The positioning member 3 is provided with an external thread 3 - 1 for adjusting the position of the adjusting nut 4 . In this embodiment, external threads are provided on the outer peripheral surface of the left end of the positioning sleeve. The adjusting nut 4 includes an internal thread connection section 4 - 1 , and the internal thread connection section 4 - 1 has an internal thread that cooperates with the external thread 3 - 1 of the positioning member 3 . The adjusting nut 4 is assembled with the external thread 3-1 of the positioning member 3 through the internal thread connecting section 4-1, and the adjusting nut 4 is moved left or right relative to the positioning member 3 by the rotation of the adjusting nut 4 . The driving assembly is used to drive the adjustment nut 4 to rotate, so that the adjustment nut 4 moves left and right relative to the positioning member 3 .

One end of the mandrel 2 is fixedly connected with the adjusting nut 4 so as to move synchronously with the adjusting nut 4. The other end of the mandrel 2 has an outer cone surface 2-1, and the outer cone surface of the mandrel 2 can be adjusted by moving the mandrel 2 left and right. 2-1 Squeeze and release the mounting section 1-2 of the jacket 1, so as to clamp and loosen the bushing part 13 through the deformation of the mounting section 1-2.

As shown in Figure 1 and Figure 3, put the bushing parts 13 on the installation section 1-2 at the right end of the jacket 1, make the bushing parts 13 close to its end face, and the driving assembly drives the adjusting nut 4 to rotate relative to the positioning part 3 , the adjustment nut 4 converts the rotation of the adjustment nut 4 into a movement in the left and right direction through the connection between the internal thread on it and the external thread on the positioning member 3, thereby driving the mandrel 2 fixedly connected with the adjustment nut 4 to move left synchronously with the move right. The right end of the mandrel 2 has an outer cone surface 2-1, and the cooperation of the outer cone surface 2-1 and the inner cone surface 1-4 at the end of the installation section 1-2 of the jacket 1 promotes the installation section 1-2 to produce Deformation and deformation recovery, thereby clamping and loosening the bushing parts 13 sleeved thereon, thereby easily realizing the clamping and opening of the bushing parts 13 . The shaft sleeve part 13 is from clamping to processing and then unclamping the shaft sleeve part 13 to remove the shaft sleeve part 13. In the whole process, the spindle box 12 does not need to stop, which saves auxiliary time for theoretical processing. For example, the traditional clamping method is to clamp the parts on the chuck. It is necessary to manually put the parts into the jaws, correct and then clamp after the spindle of the lathe is stopped.

In order to facilitate the flexible operation of the adjusting nut 4 and ensure a simple and not too complicated structure, the adjusting nut 4 also includes a toothed segment 4-2. The toothed section 4-2 is arranged on the flange of the adjusting nut 4, as shown in Figure 1, the outer peripheral surface of the toothed section 4-2 is provided with teeth, and the drive assembly includes a transmission shaft 9 and a gear 8 driven by the transmission shaft 9 , the gear 8 meshes with the toothed segment 4-2 of the adjusting nut 4. The driving assembly also includes a handle 10, which is connected with the transmission shaft 9 through a key 11, and the transmission shaft 9 is driven to rotate by the handle 10. As shown in Figure 1, the mandrel 2 passes through the jacket 1, the positioning piece 3 and the adjusting nut 4 in turn from right to left, and the toothed segment 4-2 of the adjusting nut 4 is equipped with a bearing 5, and the adjusting nut 4 is supported by the bearing 5. The mandrel 2 is described, and the mandrel 2 is fixed by the nut 6, so that the mandrel 2 is fixedly connected with the adjusting nut 4. In this embodiment, the bottom of the toothed segment 4-2 of the adjusting nut 4 has a through hole for installing the bearing 5, and the through hole is also covered with a bearing end cover 7.

The working principle of the utility model is as follows:

Before the workpiece is processed, put the bushing parts 13 on the installation section 1-2 at the right end of the jacket 1, and then pull the operating handle 10 to make the transmission shaft 9 drive the adjustment nut 4 to rotate through the gear 8, so that the adjustment nut is relatively positioned Part 3 moves to the left, synchronously drives mandrel 2 to move to the left synchronously. Due to the cooperation between the inner and outer tapered surfaces of the jacket 1 and the mandrel 2, the jacket 1 is elastically deformed and expanded, so that the bushing parts 13 are positioned and clamped, and the outer circle of the bushing parts 13 can be performed. or end processing. After the processing is completed, it is not necessary to stop the spindle box 12, but only need to turn the handle 10 in the opposite direction to drive the adjustment nut 4 to rotate through the transmission shaft 9 and the gear 8, and the adjustment nut 4 moves to the right to drive the mandrel 2 to move to the right synchronously. The jacket 1 is restored to its original state due to its elasticity, and the bushing parts 13 and the jacket 1 can be loosened. At this time, the spindle box 12 of the lathe does not need to stop rotating, and the workpiece can be unloaded. The utility model reduces the labor intensity of workers, and at the same time improves the processing efficiency of shaft sleeve parts, and is particularly suitable for batch processing of shaft sleeve parts.

The specific embodiments described above have further described the technical problems, technical solutions and beneficial effects solved by the utility model in detail. It should be understood that the above descriptions are only specific embodiments of the utility model and are not intended to be used To limit the utility model, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims (4)

1. a kind of fixture of Model For The Bush-axle Type Parts, it is characterised in that: including

Collet (1) in spindle taper hole for being connected in spindle box (12), collet (1) include the outer cone with spindle taper hole cooperation Face section (1-1) and the construction section (1-2) for installing Model For The Bush-axle Type Parts (13), the construction section (1-2) are that surface is provided with axial direction The hollow tubular structures of straight trough (1-3), and, the inner cone of certain taper is machined on the inner surface of the end of construction section (1-2) Face (1-4), for cooperating with the male cone (strobilus masculinus) (2-1) of mandrel (2) one end；

The locating piece (3) being fixedly connected with spindle box (12), locating piece (3) are equipped with external screw thread (3-1), adjust spiral shell for adjusting The position of female (4)；

Adjusting nut (4), including internal screw thread linkage section (4-1), internal screw thread linkage section (4-1) have the outer spiral shell with locating piece (3) The internal screw thread of line (3-1) cooperation；

Driving assembly, for driving adjusting nut (4) to rotate, so that relatively described locating piece (3) left and right of adjusting nut (4) is moved It is dynamic；

One end of mandrel (2), mandrel (2) is fixedly connected with adjusting nut (4), with adjusting nut (4) synchronizing moving, mandrel (2) the other end has male cone (strobilus masculinus) (2-1), by moving left and right for mandrel (2), make the male cone (strobilus masculinus) (2-1) of mandrel (2) squeeze with The construction section (1-2) of the collet (1) is discharged, with the deformation by construction section (1-2) to clamp and unclamp Model For The Bush-axle Type Parts (13)。

2. the fixture of Model For The Bush-axle Type Parts according to claim 1, it is characterised in that: the adjusting nut (4) further includes having Tooth section (4-2), is arranged on the outer peripheral surface of with teeth section (4-2) with teeth, and the driving component includes transmission shaft (9) and by transmission shaft (9) gear (8) of rotation is driven, the gear (8) is engaged with teeth section (4-2) of adjusting nut (4).

3. the fixture of Model For The Bush-axle Type Parts according to claim 2, it is characterised in that: the mandrel (2) is from right to left successively Through collet (1), locating piece (3) and adjusting nut (4), bearing is installed on teeth section (4-2) of the adjusting nut (4) (5), adjusting nut (4) supports the mandrel (2) by the bearing (5), and by nut (6) that mandrel (2) are fixed.

4. the fixture of Model For The Bush-axle Type Parts according to claim 2, it is characterised in that: the driving component further includes handle (10), the handle (10) is connect with the transmission shaft (9) by key (11), drives the transmission shaft (9) to turn by handle (10) It is dynamic.