CN210524521U

CN210524521U - T-shaped milling machine for male and female tenons of elevator guide rails

Info

Publication number: CN210524521U
Application number: CN201921395853.4U
Authority: CN
Inventors: 顾金祥; 沈宏宁; 沈龙海
Original assignee: Yancheng Baolilai Precision Machinery Manufacturing Co ltd
Current assignee: Yancheng Baolilai Precision Machinery Manufacturing Co ltd
Priority date: 2019-08-26
Filing date: 2019-08-26
Publication date: 2020-05-15
Anticipated expiration: 2029-08-26

Abstract

The utility model discloses a T type elevator guide rail negative and positive tenon milling machine. Have the lathe base, be used for the anchor clamps of centre gripping guide rail and be used for milling the milling head of guide rail negative and positive tenon, anchor clamps include driving motor, control spiral ball, slip pedestal, left slider, right slider, with slip pedestal fixed connection go up the last clamping cylinder and by but go up clamping cylinder drive vertical reciprocating motion's top board, the utility model discloses in use ball convert the rotary motion of motor to the linear motion of slider, have high accuracy, reversibility and efficient characteristics simultaneously concurrently, anchor clamps are self-centering anchor clamps, can subduct the symmetry error that leads to because of elevator guide rail working face thickness error in the conventional anchor clamps use to improve product quality.

Description

T-shaped milling machine for male and female tenons of elevator guide rails

Technical Field

The utility model relates to a milling machine, especially, be used for processing milling machine of T type elevator guide rail negative and positive tenon.

Background

The T-shaped elevator guide rail is a main part of a van elevator. One end of the T-shaped elevator guide rail is a female tenon, the other end of the T-shaped elevator guide rail is a male tenon, the connection and the matching of each two sections of guide rails depend on the female tenon and the male tenon, and the symmetry degree of the tenon and the mortise determines whether the connection of the guide rails is smooth or not. In the planing process of working surfaces on two sides of an elevator guide rail, the thickness of the working surface of the guide rail can generate errors due to factors such as a machine tool cutter and materials, and the like.

SUMMERY OF THE UTILITY MODEL

The aforesaid that exists to prior art is not enough, the to-be-solved problem of the utility model is that current elevator guide rail both sides working face planing in-process, anchor clamps adopt unilateral location, can't eliminate the influence of several preceding work step machining errors to the negative and positive tenon symmetry.

The utility model discloses a solve the technical scheme that above technical problem adopted and be: a T-shaped milling machine for milling female and male tenons of elevator guide rails comprises a machine tool base, a clamp for clamping the guide rails and a milling head for milling the female and male tenons of the guide rails, wherein the clamp comprises a driving motor, a left spiral ball screw, a right spiral ball screw, a sliding base body, a left slide block, a right slide block, an upper pressing oil cylinder fixedly connected with the sliding base body and an upper pressing plate which is driven by the upper pressing oil cylinder and can vertically reciprocate; the clamp is arranged on the machine tool base; the milling head is arranged on a power sliding table on the machine tool base; the motor is arranged on one side of the sliding seat body; the motor rotating shaft is connected with the left and right spiral ball screws; the left slider is internally provided with left-handed internal threads which are sleeved on the left side of the left and right spiral ball screws, the right slider is internally provided with right-handed internal threads which are sleeved on the right side of the left and right spiral ball screws, and lead screws on the left and right sides are consistent; the left sliding block and the right sliding block are provided with dovetail grooves and can slide on the sliding seat body. The sequential action process of the clamp comprises the following steps: the elevator guide rails are advanced to a predetermined position in a T-shape; the upper pressing oil cylinder pushes the upper pressing plate downwards, and the upper pressing plate lightly presses the elevator guide rail; the driving motor drives the left and right spiral ball screws to rotate, so that the left sliding block slides rightwards, the right sliding block slides leftwards, and the left and right sliding blocks are clamped on two sides of the working surface of the elevator guide rail simultaneously, and the upper pressing oil cylinder increases pressure, so that the T-shaped guide rail is firmly clamped in the automatic centering fixture.

Furthermore, one milling head is used for milling the mortise and tenon part, and the protruding part of the milling cutter is arranged at the position where the tenon groove needs to be milled; two milling heads for milling the male tenon part are symmetrically arranged on two sides of the guide rail of the male tenon part to be processed.

In order to facilitate the pushing of the elevator guide rail into the clamp, an automatic transmission device is arranged in front of the clamp, and the automatic transmission device can automatically move the T-shaped elevator guide rail to the center position of the clamp.

The utility model has the advantages that:

the utility model discloses in use ball to convert the rotary motion of motor into the linear motion of slider, have high accuracy, reversibility and efficient characteristics simultaneously concurrently.

The utility model discloses well ball screw thread helical pitch everywhere is unanimous, and when anchor clamps pressed from both sides tightly or loosened, the distance that the left and right sides slider removed was the same all the time, has ensured no matter how much T type guide rail working face thickness, remains elevator guide rail intermediate line all the time and is in unanimous position, can conveniently realize the automatic centering and press from both sides tight action, and the product symmetry error is little, and automatic transmission device has reduced operation workman's intensity of labour.

Drawings

FIG. 1 is a front view of a T-shaped elevator guide rail male and female tenon milling machine of the utility model;

fig. 2 is a left side view of the T-shaped elevator guide rail male and female tenon milling machine of the utility model;

FIG. 3 is a front view of the milling jig for T-shaped elevator guide rails with male and female tenons;

in the figure: 1, a machine tool base; 2, milling a head; 3, clamping; 4, an automatic transmission device; 21 driving a motor; 22 left and right screw ball screws; 23 sliding seat bodies; 24 left slider; 25 right slider; 26, pressing the oil cylinder; and 27, pressing a plate.

Detailed Description

The following detailed description of the present invention will be made in conjunction with the accompanying drawings and specific embodiments.

As shown in fig. 1, 2 and 3, the milling machine for milling the male and female tenons of the guide rails of the T-shaped elevator comprises a machine tool base 1, a clamp 2 for clamping the guide rails and a milling head 3 for milling the male and female tenons of the guide rails, wherein the clamp comprises a driving motor 21, a left and right spiral ball screw 22, a sliding base 23, a left slider 24, a right slider 25, an upper pressing cylinder 26 fixedly connected with the sliding base and an upper pressing plate 27 driven by the upper pressing cylinder 26 to vertically reciprocate. The clamp 2 is arranged on the machine tool base 1; the milling head 3 is arranged on a power sliding table on the machine tool base 1; the motor 21 is installed at one side of the sliding seat body 23; the motor rotating shaft 21 is connected with the left and right spiral ball screws 22; a left-handed internal thread is arranged in the left slider 24 and sleeved on the left side of the left and right spiral ball screws 22, a right-handed internal thread is arranged in the right slider 25 and sleeved on the right side of the left and right spiral ball screws 22, and lead screws on the left and right sides are consistent; the left slider 24 and the right slider 25 are provided with dovetail grooves and can slide on the sliding seat body 23. The sequential action process of the clamp 2 is as follows: the elevator guide rails are advanced to a predetermined position in a T-shape; the upper pressing oil cylinder 26 pushes the upper pressing plate 27 downwards, and the upper pressing plate 27 lightly presses the elevator guide rail; the driving motor 21 drives the left and right spiral ball screws 22 to rotate, so that the left slider 24 slides rightwards, the right slider 25 slides leftwards until the left and right sliders are clamped on two sides of the working surface of the elevator guide rail at the same time, and the pressure is increased by the upper pressure oil cylinder 26, so that the T-shaped guide rail is firmly clamped in the automatic centering clamp.

In practical application, one milling head 3 is used for milling the mortise and tenon part, and the protruding part of the milling cutter is arranged at the position of a groove to be milled; two milling heads 3 for milling the male tenon part are symmetrically arranged on two sides of the guide rail of the male tenon part to be processed.

In practical application, in order to facilitate the elevator guide rail to be pushed into the fixture, an automatic transmission device 4 is arranged in front of the fixture 2. The elevator guide rails are advanced to a predetermined position by the automatic transfer device 5 in a T-shape on the automatic processing line; the upper pressing oil cylinder 26 pushes the upper pressing plate 27 downwards, and the upper pressing plate 27 slightly presses the elevator guide rail; the driving motor 21 drives the left and right spiral ball screws 22 to rotate, and because the two ends of the left and right spiral ball screws 22 respectively rotate left and right, when the driving motor 21 rotates, the moving directions of the two sliding blocks are opposite, so that the left sliding block 24 slides rightwards, and the right sliding block 25 slides leftwards until the left and right sliding blocks are clamped at the two sides of the working surface of the elevator guide rail; at this time, the upper pressure cylinder 26 increases the pressure, so that the T-shaped guide rail is firmly clamped in the automatic centering fixture. When the machining is finished, the upper pressing oil cylinder 26 is loosened, the driving motor 21 rotates reversely, the T-shaped guide rail is returned to the automatic machining line by the automatic conveying device 4 and then guided into the T-shaped guide rail to be machined, and after the conveying clamp 2 is an automatic centering clamp and is clamped again, the milling head can be machined without adjusting the transverse relative position, so that the working efficiency is greatly improved, and the symmetry error is reduced.

As mentioned above, the utility model discloses the milling work of realization T type elevator guide rail negative and positive tenon that can be fine to can reduce the symmetry error as far as possible.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the foregoing embodiments are merely illustrative of the technical concepts and features of the present invention, and the purpose of the present invention is to provide a person skilled in the art with the ability to understand the contents of the present invention and implement the same, and not to limit the scope of the present invention.

Claims

1. The utility model provides a milling machine for T type elevator guide rail negative and positive tenon, includes machine tool base (1), is used for anchor clamps (2) of centre gripping guide rail and is used for milling head (3) of guide rail negative and positive tenon, its characterized in that: the clamp comprises a driving motor (21), a left and right spiral ball screw (22), a sliding seat body (23), a left slide block (24), a right slide block (25), an upper pressing oil cylinder (26) fixedly connected with the sliding seat body and an upper pressing plate (27) which is driven by the upper pressing oil cylinder (26) and can vertically reciprocate; the clamp (2) is arranged on the machine tool base (1); the milling head (3) is arranged on a power sliding table on the machine tool base (1); the motor (21) is arranged on one side of the sliding seat body (23); the rotating shaft of the motor (21) is connected with the left and right spiral ball screws (22); have the left-handed internal thread in left side slider (24), the cover is in spiral ball (22) left side about, have the right-handed internal thread cover in right slider (25) about spiral ball (22) right side, left side slider (24), right slider (25) all have the dovetail, can slide on sliding seat body (23).

2. The milling machine for male and female tenons of T-shaped elevator guide rails according to claim 1, wherein: an automatic transmission device (4) is arranged in front of the clamp (2), and the automatic transmission device (4) can automatically move the T-shaped elevator guide rail to the center position of the clamp (2).

3. The milling machine for male and female tenons of T-shaped elevator guide rails according to claim 1, wherein: one milling head (3) is used for milling the tenon part; two milling heads (3) for milling the male tenon part are symmetrically arranged on two sides of the guide rail of the male tenon part to be processed.