CN213730499U - Elastic collet chuck lathe jig - Google Patents

Abstract

The utility model relates to a parts machining field especially relates to the used instrument of lid processing behind the motor. Particularly, the utility model relates to an elasticity collet chuck lathe tool. The utility model provides a lathe jig, which comprises a matching transition sleeve, an elastic chuck, an end face positioning sleeve and an elastic transition sleeve; the elastic chuck is in a hollow T-shaped shape, the matching transition sleeve is positioned on the periphery of the middle section of the clamping part of the elastic chuck, and the elastic transition sleeve is positioned on the periphery of the front section of the clamping part of the elastic chuck and is in contact with the matching transition sleeve; the section positioning sleeve is positioned at the periphery from the front section to the middle section of the clamping part of the elastic chuck, wraps the matching transition sleeve and the end face positioning sleeve and is tightly connected with the matching transition sleeve and the end face positioning sleeve. The lathe fixture can flexibly deal with the rear covers of various motors, saves working hours, has high processing precision and improves the yield.

Description

Elastic collet chuck lathe jig

Technical Field

The utility model relates to a parts machining field especially relates to the used instrument of lid processing behind the motor. Particularly, the utility model relates to an elasticity collet chuck class lathe tool.

Background

The motor is a common power device, generally includes motor housing and installs the rotor in the housing, and the lid behind the motor is installed to tip behind the housing, sets up the through-hole of interlude rotor shaft in the middle of the back lid, generally overlaps in the through-hole and establishes the bellied axle sleeve in tip outside earlier on, in order to guarantee that relative rotation is smooth and easy between pivot and the through-hole, wearing and tearing are less, must guarantee certain precision when the lid adds man-hour behind the motor, has increased the cost and the degree of difficulty of motor preparation from this.

The requirement of the multi-motor on the machining dimensional precision is very fine, various form and position tolerances are also very high, and the appearance requirement is also very strict. At present, the better method is to firstly process the central drilling and then process the rest sizes by two working procedures of a lathe. Because the product material is not provided with a clamping handle and has a square shape, two sides of the material shape are selected to be positioned and clamped when a hole is drilled in a machining center so as to meet the requirement of appearance. And (4) machining each form and position tolerance of the excircle side by 0.01mm, and positioning and machining each step hole and thread on the opposite side by the reference hole and the reference end face in other sizes.

The material contour changes and the two model numbers are different when the rest dimensions are processed by adopting the method. The center position and roundness of the material are required to be adjusted every time of model changing. The production of defective products of the machine adjustment is more, the time of the machine adjustment is too long, and the requirement on the machine adjustment level of a machine adjuster is higher. If the directional clamping is true, the wrong direction loading can cause the mixing of defective products. On the other hand, the material clamping force influences the roundness, and the clamping force safety coefficient can be generated by reducing the clamping force to cause the product to move slightly, so that the poor form and position tolerance is generated. The reduced clamping force also results in a lower number of cuts being selected in the program, which results in a longer cycle time. The profile of the clamping and positioning part has the influence of the draft angle, the product can be inclined after being clamped, and the machining center hole is not perpendicular to the machining end face of the lathe. There is a need to develop a clamping device for machining a motor back cover to meet different requirements for the shape and accuracy of the motor.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a clamping device who uses when lid behind the preparation motor to the high accuracy of lid processing behind the adaptation motor.

In order to solve the above problem, the present invention contemplates using an elastic collet as the clamping device. The elastic collet chuck is also called elastic drill chuck, and is a drilling and milling chuck mounted on the drilling and milling machine, and its function is to clamp the drill or milling cutter. The collet, known as a collet or collet, is a fixture used to secure and reinforce a part to be modified, and is usually mounted on a milling machine to secure a drill or a milling cutter.

The utility model provides a lathe jig of elastic collet chuck type, which comprises a matching transition sleeve, an elastic collet chuck, an end face positioning sleeve and an elastic transition sleeve; the elastic chuck is in a hollow T-shaped shape, the matching transition sleeve is positioned on the periphery of the middle section of the clamping part of the elastic chuck, and the elastic transition sleeve is positioned on the periphery of the front section of the clamping part of the elastic chuck and is in contact with the matching transition sleeve; the section positioning sleeve is positioned at the periphery from the front section to the middle section of the clamping part of the elastic chuck, wraps the matching transition sleeve and the end face positioning sleeve and is tightly connected with the matching transition sleeve and the end face positioning sleeve.

Preferably, the lathe jig further comprises a pull rod; the pull rod is positioned in the hollow hole of the elastic chuck clamping part, is tightly contacted with the locking flat head bolt and surrounds the locking flat head bolt. The locking flat-head bolt is arranged in a hole of the clamping part of the elastic chuck.

Preferably, the rod part of the locking flat-head bolt is positioned in the hollow hole of the elastic chuck clamping part, and the rod part of the locking flat-head bolt extends out of the front end of the hollow hole of the elastic chuck clamping part to compress the material.

Preferably, the length of the rod part of the locking flat-head bolt is greater than that of the hollow hole of the clamping part of the elastic chuck.

Preferably, the diameter of the matching transition sleeve is larger than that of the elastic transition sleeve.

In order to further increase the convenience and accuracy of the machining of the rear cover of the motor, the lathe jig further comprises a check screw and/or a stop screw, and the check screw penetrates through the end face positioning sleeve and is fixed with the elastic transition sleeve.

In order to further increase the processing applicability of the motor back cover, end face positioning sleeves and elastic transition sleeves with different wall thicknesses can be used. For example, in a preferred embodiment of the present invention, an elastic transition sleeve with a wall thickness of 1-5mm or an elastic transition sleeve with a diameter of 27 or 32.6 mm may be used according to the requirements of the rear cover of the Mokawa motor.

The utility model discloses owing to adopt above technical scheme, make it compare with prior art, have following advantage and positive effect:

1. the center position and the roundness state of the material do not need to be adjusted every time of model changing.

2. The problems of more defective products and too long time for machine adjustment are avoided.

3. Poor form and position tolerance caused by material clamping force is reduced.

4. The processing beat time length is reduced.

5. And the problem that defective products are mixed due to manual operation because directional clamping is needed is avoided.

6. The phenomenon that the processed central hole is not perpendicular to the lathe processed end face due to the fact that the rear end face of the product is obliquely clamped and over-tightened is avoided.

Drawings

Fig. 1 is a schematic view of the motor rear cover OP 20. Wherein, the left side is the front view of the motor rear cover, and the right side is the left view of the motor rear cover.

FIG. 2 is a schematic view of a resilient collet lathe fixture. Wherein, 1 is the cooperation transition cover, 2 is the collet, 3 is the terminal surface position sleeve, 4 is the elasticity transition cover, 5 is the pull rod, 6 is the locking flush bolt, 7 is the material.

Fig. 3 is a schematic view I of the end position positioning sleeve.

Fig. 4 is a view of end position locating sleeve assembly II. Wherein 8 is a locking screw, and 9 is a stop screw.

Fig. 5 is a view of end position locating sleeve assembly III.

Detailed Description

The invention will be described in more detail hereinafter with reference to the accompanying drawings showing embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity.

Example 1

The utility model provides a lathe jig of elastic collet chuck type, which comprises a matching transition sleeve, an elastic collet chuck, an end face positioning sleeve and an elastic transition sleeve; the elastic chuck is in a hollow T-shaped shape, the matching transition sleeve is positioned on the periphery of the middle section of the clamping part of the elastic chuck, and the elastic transition sleeve is positioned on the periphery of the front section of the clamping part of the elastic chuck and is in contact with the matching transition sleeve; the section positioning sleeve is positioned at the periphery from the front section to the middle section of the clamping part of the elastic chuck, wraps the matching transition sleeve and the end face positioning sleeve and is tightly connected with the matching transition sleeve and the end face positioning sleeve. The diameter of the matching transition sleeve is larger than that of the elastic transition sleeve.

Furthermore, the pull rod is positioned in the hollow hole of the elastic chuck clamping part and is in close contact with the inner wall of the elastic chuck clamping part, and the pull rod is simultaneously in close contact with the locking flat-head bolt positioned in the hollow hole of the elastic chuck clamping part and surrounds the locking flat-head bolt.

Furthermore, the rod part of the locking flat-head bolt is positioned in the hollow hole of the elastic chuck clamping part, and the rod part of the locking flat-head bolt extends out of the front end of the hollow hole of the elastic chuck clamping part to compress the material.

Furthermore, the length of the rod part of the locking flat-head bolt is greater than that of the hollow hole of the clamping part of the elastic chuck.

Further, the lathe jig further comprises a locking screw, and the locking screw penetrates through the end face positioning sleeve and is fixed with the elastic transition sleeve.

Further, the lathe jig further comprises a stop screw, and the stop screw penetrates through the end face positioning sleeve and is fixed with the elastic transition sleeve.

When the elastic chuck is used, the locking flat-head bolt and the pull rod are placed in the hole of the clamping part of the elastic chuck. The pull rod is positioned in the hollow hole of the elastic chuck clamping part, is tightly contacted with the locking flat head bolt and surrounds the locking flat head bolt. The rod part length of the locking flat-head bolt is greater than the length of the hollow hole of the clamping part of the elastic chuck. The rod part of the locking flat-head bolt is positioned in the hollow hole of the elastic chuck clamping part, and the rod part of the locking flat-head bolt extends out of the front end of the hollow hole of the elastic chuck clamping part to compress the material. During machining, the elastic collet chuck can clamp the motor rear cover OP20, so that a finished product is machined according to the design of a drawing strictly.

Example 2

The utility model discloses an earlier OP10 machining center drilling, all the other sizes of lathe two processes OP20, OP30 processing again because the lid material does not have the centre gripping handle behind this motor, and the appearance is the square, and in order to process according to the drawing, OP20 selects 40 appearance department both sides location of material to press from both sides tightly. And D58.4 machining the outer circle side of the steel pipe, wherein each form and position tolerance of the outer circle side of the steel pipe requires machining of 0.01mm, and OP30 positioning and machining each step hole and thread on the D50.5 side of the steel pipe by using the D26H6 datum hole and the datum B end face. The motor back cover is shown in fig. 1.

The clamping scheme is shown in figure 2. The matching transition sleeve is positioned on the periphery of the middle section of the elastic chuck clamping part, the elastic transition sleeve is positioned on the periphery of the front section of the elastic chuck clamping part, and the section positioning sleeve is positioned on the periphery of the elastic chuck clamping part and wraps the matching transition sleeve and the end face positioning sleeve. The pull rod is positioned between the elastic chuck clamping part and the locking flat-head bolt and surrounds the locking flat-head bolt. The locking flat-head bolt can be rotationally adjusted to compress the material, and the rod part extends out of the front end of the hollow hole of the elastic chuck clamping part. The machining of the D27 inner hole and the end face is added at the position M28 in the machining of the OP10 machining center to be used as the positioning reference of an OP20 numerical control lathe, and then the elastic collet chuck lathe jig of the utility model is used for finishing the machining process of the OP 20.

Example 3

A certain production line has a plurality of types of multi-Chuan rear cover processing, the universality is considered during the design of the jig, and the type changing operation can be quickly and simply carried out. Therefore, 3 end face positioning blocks in fig. 3-5 are designed on the basis of the embodiment 1, the elastic transition sleeve is arranged on the end face positioning block, and 5 product model changing operations can be completed only by changing 3-M6 screws. As shown in fig. 3-5.

As those skilled in the art will appreciate, the invention may be embodied in many other specific forms without departing from the spirit or scope thereof. Although embodiments of the present invention have been described, it is to be understood that the present invention should not be limited to those precise embodiments, and that various changes and modifications can be effected therein by one skilled in the art without departing from the scope or spirit of the invention as defined by the appended claims.

Claims (7)

1. The elastic collet chuck lathe jig is characterized by comprising a matching transition sleeve (1), an elastic collet chuck (2), an end face positioning sleeve (3) and an elastic transition sleeve (4); the elastic chuck (2) is in a hollow T shape, the matching transition sleeve (1) is positioned on the periphery of the middle section of the clamping part of the elastic chuck (2), and the elastic transition sleeve (4) is positioned on the periphery of the front section of the clamping part of the elastic chuck (2) and is in contact with the matching transition sleeve (1); the section positioning sleeve is positioned at the periphery from the front section to the middle section of the clamping part of the elastic chuck (2), wraps the matching transition sleeve (1) and the end face positioning sleeve (3) and is tightly connected with the matching transition sleeve (1) and the end face positioning sleeve (3).

2. The lathe fixture of claim 1, further comprising a tie rod (5); the pull rod (5) is positioned in a hollow hole of the clamping part of the elastic chuck (2) and is in close contact with the inner wall of the clamping part of the elastic chuck (2), and the pull rod (5) is simultaneously in close contact with a locking flat head bolt (6) positioned in the hollow hole of the clamping part of the elastic chuck (2) and surrounds the locking flat head bolt (6).

3. The lathe jig as claimed in claim 2, wherein the rod of the locking flat head bolt (6) is positioned in the hollow hole of the clamping part of the elastic chuck (2), and the rod of the locking flat head bolt (6) extends out of the front end of the hollow hole of the clamping part of the elastic chuck (2) to press the material (7).

4. The lathe fixture as claimed in claim 2, characterized in that the length of the shank of the locking flush bolt (6) is greater than the length of the hollow hole of the clamping part of the collet (2).

5. Lathe fixture according to claim 1, characterized in that the diameter of the mating transition sleeve (1) is larger than the elastic transition sleeve (4).

6. The lathe fixture according to any one of claims 1-5, further comprising a locking screw (8), wherein the locking screw (8) penetrates through the end face positioning sleeve (3) and is fixed with the elastic transition sleeve (4).

7. The lathe jig according to any one of claims 1 to 5, further comprising a stop screw (9), wherein the stop screw (9) penetrates through the end face positioning sleeve (3) and is fixed with the elastic transition sleeve (4).

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