CN217166679U

CN217166679U - Alloy steel frog milling positioning device

Info

Publication number: CN217166679U
Application number: CN202220531778.5U
Authority: CN
Inventors: 王永利; 刘红霞; 魏超飞
Original assignee: Ruzhou Zhengtie Sanjia Turnout Co ltd
Current assignee: Ruzhou Zhengtie Sanjia Turnout Co ltd
Priority date: 2022-03-13
Filing date: 2022-03-13
Publication date: 2022-08-12
Anticipated expiration: 2032-03-13

Abstract

The utility model provides an alloy steel frog milling process positioner, include: a base; the jacking mechanism is provided with a centre, so that the centre jacks two ends of the steel rail; the supporting mechanisms are arranged at intervals and are provided with supporting blocks, and the inclination of the top surfaces of the supporting blocks is consistent with that of the steel rails corresponding to the supporting blocks, so that the supporting blocks are in surface contact with the steel rails to support the steel rails; and the clamping mechanism is used for clamping two sides of the steel rail and is matched with the jacking mechanism to limit the degree of freedom of the steel rail in the horizontal direction. According to the technical scheme, the two ends of the steel rail are positioned and tightly pushed through the pushing mechanism, the steel rail is convenient to overturn, the steel rail is prevented from jumping in the vertical direction and the horizontal direction in the machining process through the supporting mechanism and the clamping mechanism, the machining quality is guaranteed, the machining of multiple surfaces of the steel rail can be completed through one-time clamping, and the machining quality is guaranteed while the machining efficiency is improved.

Description

Alloy steel frog milling positioning device

Technical Field

The utility model relates to an alloy steel frog mills auxiliary device, in particular to alloy steel frog mills processing positioner.

Background

The frog is composed of wing rails, point rails, spacer irons and connecting parts, and is generally formed by forging alloy steel blanks, the forged steel rails need to be processed by drilling, milling and grinding to form finished steel rails, the top surfaces, the side surfaces and the bottom surfaces of the rails need to be milled during steel rail processing, and the point rails need to be positioned by using a clamp for processing on a machine tool. In order to satisfy the processing of the different faces of rail, utility model patent with publication number CN107127604A discloses a multipurpose modular fixture for digging milling machine, this anchor clamps though can satisfy every of frog rail heart rail and treat the clamping location of machined surface, but a clamping can only process a face, needs a lot of clamping and just can accomplish the milling process to the rail.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an alloy steel frog mills auxiliary device to solve prior art center rail and mill the problem that need clamping many times man-hour.

In order to achieve the above object, the utility model provides an alloy steel frog milling process positioner, include: a base; the jacking mechanism is provided with a centre, so that the centre jacks two ends of the steel rail; the supporting mechanisms are arranged at intervals and are provided with supporting blocks, and the inclination of the top surfaces of the supporting blocks is consistent with that of the steel rails corresponding to the supporting blocks, so that the supporting blocks are in surface contact with the steel rails to support the steel rails; the clamping mechanism is used for clamping two sides of the steel rail and is matched with the jacking mechanism to limit the degree of freedom of the steel rail in the horizontal direction; the jacking mechanism, the supporting mechanism and the clamping mechanism are all arranged on the base, and a connecting plate used for being connected with a machine tool is arranged below the base.

Furthermore, the tightening mechanism comprises a centre and a centre seat, the centre is rotatably arranged on the centre seat, and the two centre seats are oppositely arranged so that the centre arranged on the centre can clamp two ends of the steel rail; one of the two tip seats is a movable tip seat, the other is a fixed tip seat, and the movable tip seat is slidably arranged on the base.

Further, one of the two tip seats is arranged on the height-adjustable adjusting seat, so that the height of the tip seat is adjustable.

Further, the clamping mechanism comprises: a clamping block; the mounting seats are used for mounting the clamping blocks, and the two mounting seats are oppositely arranged so that the two clamping blocks mounted on the mounting seats clamp two sides of the steel rail; and the clamping driving piece is used for driving the clamping block to move towards the steel rail so as to clamp the steel rail, and the clamping block is installed on the installation seat through the clamping driving piece.

The utility model discloses following technological effect has:

1. the utility model can tightly support and fix the steel rail between the two tops through the supporting mechanism, and can ensure the steel rail to turn over, thereby conveniently processing different surfaces of the steel rail, realizing the processing of a plurality of surfaces of the steel rail by one-time clamping, and ensuring the processing quality while improving the processing efficiency;

2. the utility model supports the steel rail through the supporting mechanism, prevents the steel rail clamped on the tip mechanism from deforming because of the length problem of the steel rail, ensures the processing quality and prevents the milling cutter from being damaged because of the up-and-down jumping of the steel rail;

3. the utility model prevents the steel rail from shaking in the horizontal direction during the milling process through the clamping mechanism, thereby preventing the processing quality from being influenced and the cutter from being damaged;

4. the utility model discloses not only can the adjustment of horizontal location, vertical location and rail machined surface, and the height-adjustable of the tight mechanism in top, clamping mechanism and supporting mechanism, one set of equipment can satisfy the milling process of different model rails, reduction in production cost.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate preferred embodiments of the invention and together with the description, serve to explain the principles of the invention. In the figure:

FIG. 1 is one of schematic structural diagrams of a milling positioning device for alloy steel frog of the present invention;

fig. 2 is a second schematic structural diagram of the alloy steel frog milling positioning device of the present invention.

The reference numbers in the figures denote the following meanings: 100. a base; 200. the device comprises a jacking mechanism, 210, a centre, 220, a centre seat, 220A, a fixed centre seat, 220B, a movable centre seat, 230, a height adjusting seat, 240, a lifting slide rail, 250, a supporting seat, 260, a lifting hydraulic cylinder, 270, a slide way, 280, a first lead screw, 290 and a mounting plate; 300. the supporting mechanism 310, the supporting block 320 and the lifting assembly; 400. the clamping mechanism comprises a clamping block 410, a clamping block 420, a second lead screw 430, a sliding block 440, a sliding rail 450, a mounting seat 460, a strip hole 470 and a connecting head; 500. a connection plate 510, a connection hole; 600. a turntable 610, a through hole; 700. a fixed seat.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be embodied in many different forms as defined and covered by the claims.

Example 1: as shown in fig. 1, the alloy steel frog milling positioning device according to a preferred embodiment of the present invention comprises a base 100, a tightening mechanism 200, a supporting mechanism 300 and a clamping mechanism 400, wherein the tightening mechanism 200 is provided with a tip 210 to position the tip to tighten against two ends of a steel rail, a plurality of supporting mechanisms 300 are arranged at intervals, the number of the supporting mechanisms 300 of the present embodiment is 3, the supporting mechanism 300 is used for supporting the steel rail clamped between the butyl mechanisms 200 to prevent the steel rail from deforming during the processing process and affecting the processing quality, the specific number of the supporting mechanisms 300 can be determined according to the length of the steel rail to be milled, the supporting mechanism 300 is provided with a supporting block 310, the inclination of the top surface of the supporting block 310 is consistent with the inclination of the steel rail (core rail) to be milled corresponding to the supporting block, so that the supporting block 310 is in surface contact with the steel rail to support the steel rail, the supporting block can be a standard cushion block consistent with the inclination with the milling process, the self-inclination cushion block can also be adjusted according to the inclination of the steel rail. Clamping mechanism 400 is used for pressing from both sides tight rail, with the tight mechanism 200 cooperation in top in order to restrict the degree of freedom of rail horizontal direction, prevents that the rail from rocking in the course of working, when influencing processingquality, also avoids appearing because of the problem of rocking damage cutter of rail. The tight mechanism 200 in top, supporting mechanism 300 and clamping mechanism 400 all set up on base 100, be provided with the connecting plate 500 that is used for being connected with the lathe in base 100 below, each mechanism is convenient for install to base 100, base 100 installs on connecting plate 500 through key-type connection and bolt connection, connecting plate 500 installs on the lathe workstation, set up connecting hole 510 on connecting plate 500, be convenient for with the connection of lathe workstation, mount pad 100 can bear the cutting force that mills the production, be convenient for be connected with the workstation of lathe through connecting plate 500. The tight mechanism 200 in top is provided with top 210, can also satisfy the demand that rotates the rail in the tight rail both ends in top to satisfy the milling process of the different faces of rail, because top 210 can rotate, change the machined surface and can directly overturn the rail and need not be with the help of the assistance of driving a vehicle or portal frame, realized the purpose of a clamping multiaspect processing, and can reduce machining error, improve processingquality.

The tightening mechanism comprises a centre 210 and a centre seat 220, wherein the centre 210 is rotatably arranged on the centre seat 220 through a bearing so as to meet the requirement of the centre 210 on rotation, and the two centre seats 220 are oppositely arranged so that the centre 210 arranged on the centre can clamp two ends of a steel rail; one of the two tip seats 220 is a movable tip seat 220B, the other is a fixed tip seat 220A, the movable tip seat 220B is slidably mounted on the base 100 through a slide block (not shown) arranged at the bottom thereof and a slide way 270 arranged on the base 100, and scales can be represented on two sides of the slide way 270, so that the movable tip seat 220B can be conveniently mounted for moving by a distance required to move. The concrete apex seat 220B that moves is installed on supporting seat 250, the fixed T shape slider that is provided with in supporting seat 250 bottom surface, set up the slide 270 with T shape slider adaptation on base 100, thereby can move apex seat 220B through artifical movable supporting seat 250 and remove, thereby the rail of the tight different length of clamp of two apexes 220, for convenient removal back fixed supporting seat 250, the screw hole (not shown in the figure) that begins to supply locking bolt to pass in the bottom of supporting seat 250, the bottom crimping that locking bolt's free end passed apex seat is on the bottom surface of slide, thereby to moving apex seat locking. Referring to fig. 1, the support seat 250 of the present embodiment is driven by a lead screw to linearly move, specifically, the first lead screw 280 is located in the slide way and is in threaded connection with the slide block, one end of the first lead screw 280 is rotatably installed on the end wall of the slide way 270 through a bearing, the other end of the first lead screw 280 is rotatably installed on the installation plate 290, the installation plate 290 is installed on the side surface of the base 100 through a bolt assembly, the first lead screw 280 and the slide block form a lead screw pair, and the slide block is driven by rotating the first lead screw 280 to drive the support seat 250 to linearly move along the slide way 270. In other embodiments, not shown, the linear movement of the support base 250 may be achieved by a hydraulic cylinder, an air cylinder, or an electric push rod. The outer end of the first lead screw 280 is provided with a connecting section with a hexagonal cross section so as to be connected with the crank, thereby conveniently driving the first lead screw 280.

The supporting block 310 of the supporting mechanism 300 of this embodiment is a supporting block with an adjustable inclination angle, which is suitable for different types of steel rails without disassembling and replacing the supporting block, compared with a supporting block with a fixed inclination angle. The specific structure of the supporting mechanism 300 of the present embodiment is: the supporting mechanism 300 comprises a supporting block 310 and a lifting component 320 for driving the supporting block 310 to lift, the two lifting components 320 are respectively arranged at two ends of the supporting block 310, wherein the top end of one group of lifting components 310 is hinged with one end of the supporting block 310, the top end of the other group of lifting components 320 is fixedly connected with the other end of the supporting block 310, the supporting block 310 is enabled to have different slopes by adjusting the heights of the two lifting components 320, the lifting component of the embodiment adopts a push rod motor, the lifting distance is conveniently and accurately controlled by adopting the push rod motor, so that the slope of the supporting block 310 can be accurately controlled, the contact between the supporting block and the steel rail can be ensured by being attached to form a surface, the supporting function is fully ensured, and the precision of milling is further ensured.

The clamping mechanism 400 of the embodiment includes a clamping block 410, a mounting seat 450 and a clamping driving member, wherein the mounting seat 450 is used for mounting the clamping block 410, the two mounting seats 450 are oppositely arranged, so that the two clamping blocks 410 mounted thereon clamp two sides of a steel rail, the clamping driving member is used for driving the clamping block 410 to move towards the steel rail so as to clamp the steel rail, and the clamping block 410 is mounted on the mounting seat 410 through the clamping driving member. The clamping mechanism clamps the side face of the steel rail, and the steel rail is prevented from shaking leftwards and rightwards in the milling process, so that the processing quality is influenced, and the cutter is prevented from being damaged due to shaking of the steel rail. The clamping driving member of this embodiment drives the clamping block 410 to move linearly by adopting a screw rod driving mode, specifically, the clamping driving member is composed of a second screw rod 420 and a thread block adapted to the second screw rod 420, as shown in fig. 1, the thread block of this embodiment is replaced by a sliding block 430, a threaded hole adapted to the second screw rod 420 is arranged on the sliding block 430, the second screw rod 420 and the threaded hole cooperate to form a thread pair, and the second screw rod 420 is rotated to drive the clamping block 410 to move towards the steel rail or away from the steel rail. In other embodiments, the second lead screw may be replaced by a hydraulic cylinder, an air cylinder, or a linear motor.

Example 2: in order to improve the utility model discloses alloy steel frog milling process positioner's commonality, this embodiment has increased the function of the tight piece 410 height of adjustment clamp on the embodiment basis, and concrete structure is: the long hole 460 is formed in the length direction of the installation seat 450, the second lead screw 420 penetrates through the long hole 460 to be in threaded connection with the sliding block 430 located on the inner side of the installation seat 450, the sliding block extends out to be fixedly connected with the clamping block 420, a connector 470 with a hexagonal cross section is arranged at one end, far away from the clamping block 420, of the second lead screw 420, and the connector 470 is used for installing a crank, so that the second lead screw 420 can be rotated conveniently, and the use convenience is improved. The sliding block 430 is slidably mounted on the inner side surface of the mounting base 460 through a vertically arranged sliding rail 440, the sliding rail 440 is fixedly arranged on the inner side surface of the mounting base 460, the purpose of adjusting the height of the clamping block 410 can be achieved by designing the sliding rail 440 and the sliding block 430, the clamping block can be mounted on the mounting base 450 through a second lead screw 420 which is sleeved on a fixing block (not shown in the figure) on the outer side of the second lead screw 420 after the height is adjusted, the fixing block is arranged on the outer side of the mounting base 450 through a bolt assembly, or a groove is formed in the sliding rail 440, the groove is arranged along the length direction of the sliding rail 440, the bottom of the groove is a rough surface, and the sliding block 430 is locked and fixed through a bolt.

Example 3: in this embodiment, the function of adjusting the height of the movable tip seat 220B is added on the basis of embodiment 2, specifically: the height adjusting seat 230 is fixedly arranged at the bottom of the movable center seat 220B, the height adjusting seat 230 is in sliding connection with the lifting slide rail 240 fixed on the support seat 250, and the height adjusting seat can lift up and down through the lifting hydraulic cylinder 260, so that the height of the movable center seat 220B can be adjusted, the height of a center 210 mounted on the movable center seat can be adjusted, and the requirements for machining steel rails of different types can be met.

Example 4: this embodiment has increased the carousel on embodiment 1's basis to thereby make the rail upset by the live centre, specifically be: as shown in fig. 2, in order to facilitate the turning of the steel rail, the mounting end of the center 210 extends out of the center fixing seat 220A and is fixed on a turntable 600, the turntable 600 can be directly rotated, the center 210 can be conveniently rotated by the turntable 600, and a crank can also be arranged on the turntable 600, so that the turntable 600 can be more conveniently rotated. A plurality of through holes 610 are formed in the turntable 600, positioning holes (not shown) are formed in the fixing base 700, and the turntable 600 is rotated to make one of the through holes 610 coaxial with the positioning holes, and a positioning pin is inserted to position the turntable, so that the steel rail is positioned.

Use the utility model discloses when alloy steel frog milling process positioner carries out rail clamping location, its concrete step is as follows:

(1) according to the structure of the steel rail to be processed, the height of the movable center seat 220B is adjusted, the steel rail is hoisted between the two centers 210 through a crane or other equipment, and the first lead screw 280 is rotated to enable the two centers 210 to clamp the steel rail; (2) adjusting the height of each supporting mechanism 300 and the inclination of the supporting block 310 to enable the supporting block 310 to be attached to the contact surface of the steel rail, or adjusting the height of each supporting mechanism 300 and the inclination of the supporting block 310 before the step (1) according to the structural characteristics of the steel rail to be processed; (3) after the clamping mechanism 400 is adjusted to enable the two clamping blocks 410 to tightly push the two side faces of the steel rail, the steel rail is milled after the hoisting is removed, after the face is machined, the clamping mechanism and the supporting mechanism are loosened to rotate the steel rail to the other machined face, the supporting mechanism and the clamping mechanism are adjusted to machine the other face, the hoisting equipment does not need to be used again to turn over multiple steel rails, and the tops are not loosened to directly rotate, so that the operation is convenient, the symmetrical pair of the working edges of the steel rail can be ensured, and the quality of the steel rail is ensured; meanwhile, the processing of different surfaces of the steel rail can be finished by one-time clamping, and the processing efficiency is improved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A milling positioning device for an alloy steel frog comprises: a base seat is arranged on the base seat,

it is characterized by also comprising:

the jacking mechanism is provided with a centre, so that the centre is positioned and jacks two ends of the steel rail;

the supporting mechanisms are arranged at intervals and are provided with supporting blocks, and the inclination of the top surfaces of the supporting blocks is consistent with that of the steel rails corresponding to the supporting blocks, so that the supporting blocks are in surface contact with the steel rails to support the steel rails;

the clamping mechanism is used for clamping two sides of the steel rail and is matched with the jacking mechanism to limit the degree of freedom of the steel rail in the horizontal direction;

the jacking mechanism, the supporting mechanism and the clamping mechanism are all arranged on the base, and a connecting plate used for being connected with a machine tool is arranged below the base.

2. The alloy steel frog milling positioning device according to claim 1, wherein the tightening mechanism comprises:

a tip; and

the center is rotatably arranged on the center seat, and the two center seats are oppositely arranged so that the center arranged on the center seats can clamp two ends of the steel rail;

one of the two tip seats is a movable tip seat, the other is a fixed tip seat, and the movable tip seat is slidably arranged on the base.

3. The alloy steel frog milling positioning device according to claim 2, wherein one of the two tip seats is arranged on a height-adjustable adjusting seat, so that the height of the tip seat is adjustable.

4. The alloy steel frog milling positioning device according to claim 1, wherein the supporting mechanism comprises:

a support block; and

the lifting components are used for driving the supporting block to lift, the two lifting components are respectively arranged at two ends of the supporting block, the top end of one lifting component is hinged with one end of the supporting block, and the top end of the other lifting component is fixedly connected with the other end of the supporting block.

5. The alloy steel frog milling positioning device according to claim 1, wherein the clamping mechanism comprises:

a clamping block;

the mounting seats are used for mounting the clamping blocks, and the two mounting seats are oppositely arranged so that the two clamping blocks mounted on the mounting seats clamp two sides of the steel rail; and

and the clamping driving piece is used for driving the clamping block to move towards the steel rail so as to clamp the steel rail, and the clamping block is installed on the installation seat through the clamping driving piece.