CN202344293U

CN202344293U - Mechanism for clamping and positioning rotary 8B side bearing seat in edge milling process

Info

Publication number: CN202344293U
Application number: CN2011204825749U
Authority: CN
Inventors: 彭惠杰
Original assignee: CSR Shijiazhuang Rolling Stock Co Ltd
Current assignee: CRRC Shijiazhuang Co Ltd
Priority date: 2011-11-29
Filing date: 2011-11-29
Publication date: 2012-07-25
Anticipated expiration: 2021-11-29

Abstract

The utility model discloses a mechanism for clamping and positioning a rotary 8B side bearing seat in an edge milling process. The mechanism comprises a machining platform, wherein a main lever, a secondary lever, a top thread and a linkage rod are arranged on the two sides of the machining platform; a resistance point of the main lever and a resistance point of the secondary lever are provided with a main chuck and a secondary chuck respectively; the main chuck and the secondary chuck are positioned above the surface of the machining platform and are mutually opposite to slot holes of a workpiece to be machined; the top thread is in threaded connection with a force application point of the main lever; and the linkage rod is in slide fit with a hole of a support frame on the machining platform, and a central line is a connecting line between the force application point of the main lever and a force application point of the secondary lever. Due to the adoption of a lever principle, the side bearing seat is clamped and positioned by the chucks according to a special shape (symmetrical slot holes are formed on the two sides) of the rotary 8B side bearing seat, so that the mechanism is time-saving and labor-saving and has extremely reliable positioning accuracy, and the production efficiency is improved by 2 to 3 times.

Description

A kind of commentaries on classics 8B side bearing mills the limit clamping positioning mechanism

Technical field

The utility model relates to a kind of commentaries on classics 8B side bearing and mills the limit clamping positioning mechanism.

Background technology

Changeing the 8B side bearing is a kind of common part on the train, mill the limit add man-hour earlier will be to its clamping and positioning, because its profile is little; The structure special reasons, its positioning difficulty is bigger, and each all has different minim gaps; Size is difficult to control, and complex operation, production and processing efficient are very low.

The utility model content

The technical problem that the utility model will solve provides a kind of commentaries on classics 8B side bearing and mills the limit clamping positioning mechanism, and it has characteristics simple in structure, easy to operate, that production and processing efficient is high.

For solving the problems of the technologies described above; The technical scheme that the utility model is taked is: it comprises machine table; Be provided with main lever in addition in the both sides of machine table, from lever, jackscrew and gangbar, main lever and be respectively equipped with the main card head from the resistance point position of lever and, said main card head and be positioned at the top of the table top of machine table from dop from dop; And each other corresponding to be processed slotted eye position; Jackscrew is threaded with the position, force with main lever, and the hole of gangbar and machine table upper support frame is slidingly matched, and center line is a said main lever and from the line with the force of lever.

The utility model further improves and is: the main card head is respectively equipped with first back-up block and second back-up block that is fixedly connected with machine table with both sides from dop; First back-up block is provided with by the oblique chute of middle and upper part to the inclination of the outside, bottom; Main lever is provided with bolster; Bolster is positioned at oblique chute, the main lever point of main lever be positioned at the corresponding machine table in the lever middle part outside on, from lever to be fulcrum from lever shaft and to be connected with second back-up block; Change the 8B side bearing and mill limit processing detent mechanism by many both sides that are installed on machine table side by side.

Adopt the beneficial effect that technique scheme produced to be:

It utilizes lever principle, utilizes the distinctive shape of commentaries on classics 8B side bearing (both sides have the slotted eye of symmetry) to carry out clamping and positioning with dop, and time saving and energy saving, positioning accuracy is very reliable; And owing to can existing minim gap, each position, bottom causes the deviation of milling the position, limit when having eliminated with the bench vice clamping and positioning; Through using gangbar, drive two levers simultaneously with a jackscrew, make the operation of parts clamping and positioning simpler; Oblique chute is set, and under the situation that main lever does not stress, main lever moves downwards outwards certain distance naturally through bolster in oblique chute, is convenient to taking-up after parts are machined; This device can be processed the multiple working procedures such as last plane, home record two facades and bottom surface of this part, and each many one cuttves of operation milled, and had made full use of effective impulse stroke of lathe, had reduced non-cutting time, had increased the time kept in reserve, has improved 2-3 production efficiency doubly.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is an A-A cutaway view among Fig. 1;

Fig. 3 is a main lever 2 and from the structural representation of lever 3 among Fig. 1.

In the accompanying drawings: 1, machine table; 2, main lever; 3, from lever; 4, jackscrew; 5, gangbar; 6, bolster; 7, oblique chute; 8, first back-up block; 9, second back-up block; 10, table top; 11, main lever point; 12, from lever shaft; 13, bracing frame; 21, main card head; 31, from dop.

The specific embodiment

Embodiment by shown in Fig. 1-3 can know; It comprises machine table 1; Be provided with main lever 2 in addition in the both sides of machine table 1, from lever 3, jackscrew 4 and gangbar 5, main lever 2 and be respectively equipped with main card head 21 from the resistance point position of lever 3 and, said main card head 21 and be positioned at the top of the table top 10 of machine table 1 from dop 31 from dop 31; And each other corresponding to be processed slotted eye position; Jackscrew 4 is threaded with the position, force with main lever 2, and the hole of gangbar 5 and machine table 1 upper support frame 13 is slidingly matched, and center line is a said main lever 2 and from the line with the force of lever 3; Main card head 21 is respectively equipped with first back-up block 8 and second back-up block 9 that is fixedly connected with machine table 1 with both sides from dop 31; First back-up block 8 is provided with by the oblique chute 7 of middle and upper part to the inclination of the outside, bottom; Main lever 2 is provided with bolster 6; Bolster 6 is positioned at oblique chute 7, the main lever point 11 of main lever 2 be positioned at the corresponding machine table 1 in the lever middle part outside on, from lever 3 to be fulcrum from lever shaft 12 and to be connected with second back-up block 9; Change the 8B side bearing and mill limit processing detent mechanism by many both sides that are installed on machine table 1 side by side.

Method for using:

A plurality of commentaries on classics 8B side bearings (hereinafter to be referred as parts) are placed on the table top, and the corresponding corresponding dop in both sides, then main lever is risen to the chute top; At this moment two dops are just in time aimed at the corresponding slotted eye in parts both sides, and the jackscrew of screwing then is at this moment under the effect of gangbar; Also can be stressed from lever, two levers put in the corresponding hole, parts both sides because of stressed rotation makes two dops, and are fixedly clamped; Mill the limit operation afterwards, mill after the limit operation accomplishes, unclamp jackscrew; Main lever can outwards slide off gadget hole downwards along chute, conveniently takes out parts.

Claims

1. a commentaries on classics 8B side bearing mills the limit clamping positioning mechanism; Comprise machine table (1); It is characterized in that: be provided with main lever (2) in the both sides of machine table (1), from lever (3), jackscrew (4) and gangbar (5); Said main lever (2) and be respectively equipped with main card head (21) from the resistance point position of lever (3) and from dop (31); Said main card head (21) and be positioned at the top of the table top (10) of machine table (1) from dop (31), and each other corresponding to be processed slotted eye position, said jackscrew (4) is threaded with the position, force with main lever (2); The hole of gangbar (5) and machine table (1) upper support frame (13) is slidingly matched, and center line is a said main lever (2) and from the line with the force of lever (3).

2. a kind of commentaries on classics 8B side bearing according to claim 1 mills the limit clamping positioning mechanism; It is characterized in that said main card head (21) is respectively equipped with first back-up block (8) and second back-up block (9) that is fixedly connected with machine table (1) with both sides from dop (31); Said first back-up block (8) is provided with by the oblique chute (7) of middle and upper part to the inclination of the outside, bottom; Said main lever (2) is provided with bolster (6); Said bolster (6) is positioned at oblique chute (7); The main lever point (11) of said main lever (2) be positioned at the corresponding machine table in the lever middle part outside (1) on, said from lever (3) to be fulcrum from lever shaft (12) and to be connected with second back-up block (9).

3. a kind of commentaries on classics 8B side bearing according to claim 2 mills the limit clamping positioning mechanism, it is characterized in that said commentaries on classics 8B side bearing mills limit processing detent mechanism by many both sides that are installed on machine table (1) side by side.