CN213701826U

CN213701826U - Lathe fixture for automatic centering of brake drum

Info

Publication number: CN213701826U
Application number: CN202022549324.4U
Authority: CN
Inventors: 赵效明; 吴晓敏; 刘波; 韩东里; 詹文强
Original assignee: Longgong Fujian Casting and Forging Co Ltd
Current assignee: Longgong Fujian Casting and Forging Co Ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-07-16
Anticipated expiration: 2030-11-06

Abstract

The utility model discloses a turning attachment that brake drum self-centering was used, including anchor clamps base station and brake drum, the upper surface of anchor clamps base station just is located the outside annular distribution of brake drum and is provided with a plurality of jack catch seats, every the top of jack catch seat all has a jack catch body through the round pin hub fixation scarf joint, the downside is all fixed on the both ends of jack catch body and is rabbeted a tight piece, the inside of jack catch body and the one side that is located tight piece of clamp have seted up the activity chamber, the inside movable in activity chamber is connected with the connecting plate. The utility model discloses a set up two bolt holes that can coincide each other at the looks remote site of two tight pieces of clamp, will press from both sides tight piece through bolt and bolt hole afterwards and fix the one end at the jack catch body with two, the bolt is for selling the more easily dismouting of axle, meanwhile, can improve the connection stability of pressing from both sides tight piece in the jack catch body through the mutual block between a plurality of spacing axle and a plurality of spacing hole.

Description

Lathe fixture for automatic centering of brake drum

Technical Field

The utility model relates to a brake drum processing technology field especially relates to a lathe fixture that brake drum self-centering was used.

Background

Traditional auto-centering of brake drum is used's the tight piece of clamp of lathe clamp easily wears out, needs the periodic replacement, and traditional tight piece of clamp is fixed in knocking into the jack catch body through the round pin axle, and such fixed mode makes the tight piece of clamp connect firmly, but also has the problem of difficult dismantlement change.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

For the technical problem who exists among the solution background art, the utility model provides a turning attachment that brake drum self-centering used.

(II) technical scheme

The utility model provides a turning attachment that brake drum self-centering used, including anchor clamps base station and brake drum, the upper surface of anchor clamps base station just is located the outside annular distribution of brake drum and is provided with a plurality of jack catch seats, every the top of jack catch seat all has a jack catch body through the round pin hub fixation scarf joint, the downside is all fixed on the both ends of jack catch body and is rabbeted there is a tight piece of clamp, the inside of jack catch body just is located one side of pressing from both sides tight piece and has seted up the activity chamber, the inside movable in activity chamber is connected with the connecting plate, the connecting plate is connected with a plurality of spacing axles towards one side fixed surface of pressing from both sides tight piece, press from both sides tight piece and set up a plurality of spacing holes that can block with the tip looks of spacing axle towards the surface of connecting plate.

Preferably, the outer surface of the connecting plate, which is far away from the clamping block, is rotatably connected with a screw shaft, and the screw shaft is screwed with the inner wall of the jaw body.

Preferably, a connecting column is slidably sleeved at one end, far away from the connecting plate, of the screw shaft, a pull column is fixedly connected at one end, far away from the screw shaft, of the connecting column, and a retraction groove for accommodating the pull column is formed in the outer surface of the clamping jaw body.

Preferably, the outer surface of one end of the pull column close to the connecting column is fixedly sleeved with a spline ring sleeve, and the inner surface of one end of the retraction groove close to the connecting column is fixedly connected with a latch capable of being clamped with an edge tooth socket of the spline ring sleeve.

Preferably, the outer surface of the connecting column is symmetrically and fixedly connected with a pair of rectangular positioning sliding blocks, and the inner wall of the end part of the screw shaft is provided with a rectangular positioning sliding groove matched with the rectangular positioning sliding blocks.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a set up two bolt holes that can coincide each other at the looks remote site of two tight pieces of clamp, will press from both sides tight piece through bolt and bolt hole afterwards and fix the one end at the jack catch body with two, the bolt is for selling the more easily dismouting of axle, meanwhile, can improve the connection stability of pressing from both sides tight piece in the jack catch body through the mutual block between a plurality of spacing axle and a plurality of spacing hole.

Drawings

Fig. 1 is a schematic top view of a lathe fixture for automatically centering a brake drum according to the present invention;

fig. 2 is a schematic front view of the jaw seat, the jaw body and the clamping block of the present invention;

fig. 3 is a side view of the jaw body and the clamping block of fig. 2 according to the present invention;

fig. 4 is an enlarged schematic view of a portion a in fig. 3 according to the present invention.

In the figure: the clamp comprises a clamp base table 1, a clamp base table 2, a clamp base table 3, a clamp body 4, a clamp block 5, a brake drum 6, a movable cavity 7, a connecting plate 8, a limiting shaft 9, a limiting hole 9, a connecting column 10, a pull column 11, a spline ring sleeve 12, a latch 13, a rectangular positioning sliding block 14, a rectangular positioning sliding groove 15, a retraction groove 16 and a screw shaft 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

As shown in fig. 1-4, the utility model provides a turning attachment that brake drum self-centering used, including anchor clamps base station 1 and brake drum 5, the upper surface of anchor clamps base station 1 and the outside annular distribution that is located brake drum 5 are provided with a plurality of jack catch bases 2, the top of every jack catch base 2 all has a jack catch body 3 through the round pin axle fastening scarf joint, the equal fixed scarf joint of downside has one to press from both sides tight piece 4 on the both ends of jack catch body 3, the inside of jack catch body 3 just is located one side of pressing from both sides tight piece 4 and has seted up movable chamber 6, the inside movable in activity chamber 6 is connected with connecting plate 7, connecting plate 7 is connected with a plurality of spacing axles 8 towards one side fixed surface of pressing from both sides tight piece 4, press from both sides tight piece 4 and set up a plurality of spacing holes 9 that can block with the tip looks block of spacing axle 8 towards.

In an alternative embodiment, a screw shaft 17 is rotatably connected to the outer surface of the connecting plate 7 away from the clamping block 4, and the screw shaft 17 is screwed with the inner wall of the jaw body 3.

In an optional embodiment, the connecting column 10 is slidably clamped and sleeved at one end of the screw shaft 17 far away from the connecting plate 7, the pull column 11 is fixedly connected at one end of the connecting column 10 far away from the screw shaft 17, and the outer surface of the jaw body 3 is provided with a retraction groove 16 for accommodating the pull column 11.

In an alternative embodiment, a spline ring 12 is fixedly sleeved on the outer surface of one end of the pull post 11 close to the connecting post 10, and a latch 13 capable of being engaged with the edge tooth socket of the spline ring 12 is fixedly connected on the inner surface of one end of the retraction groove 16 close to the connecting post 10.

In an alternative embodiment, a pair of rectangular positioning sliders 14 is symmetrically and fixedly connected to the outer surface of the connecting column 10, and a rectangular positioning sliding groove 15 matched with the rectangular positioning slider 14 is formed in the inner wall of the end portion of the screw shaft 17.

The working principle is as follows: the clamping blocks of the traditional lathe fixture for automatically centering the brake drum are easy to wear and need to be replaced regularly, the traditional clamping blocks are fixed in the jaw body through pin shafts, the clamping blocks are connected stably in such a fixing mode, but the clamping blocks are not easy to detach and replace, in the embodiment, two bolt holes which can be coincided with each other are formed in opposite ends of the two clamping blocks 4, then the two clamping blocks 4 are fixed at one end of the jaw body 3 through the bolts and the bolt holes, the bolts are easier to detach and install relative to the pin shafts, and meanwhile, the connection stability of the clamping blocks 4 in the jaw body 3 can be improved through mutual clamping between the limiting shafts 8 and the limiting holes 9; specifically, as shown in fig. 3, two clamping blocks 4 are simultaneously embedded into the jaw body 3, opposite ends of the two clamping blocks 4 are sleeved inside and outside, then a bolt is screwed in from the end of the jaw body 3, and the bolt is spirally connected with a bolt hole overlapped with the two clamping blocks 4, so that the two clamping blocks 4 are fixed at one end of the jaw body 3; then the pull post 11 is drawn out from the retraction groove 16 to separate the spline ring sleeve 12 from the latch 13, then the pull post 11 is rotated, the pull post 11 drives the connecting post 10 to rotate, the screw shaft 17 is driven to rotate through the sliding block between the rectangular positioning slide block 14 and the rectangular positioning slide groove 15, the screw shaft 17 is driven to horizontally move through the threaded screwing between the screw shaft 17 and the inner wall of the jaw body 3, so that the connecting plate 7 is driven to horizontally move, and the limiting shaft 8 is driven to be clamped into the limiting hole 9 to limit the clamping block 4 or to be separated from the limiting hole 9 to relieve the limit.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A lathe fixture for automatically centering a brake drum comprises a fixture base table (1) and the brake drum (5), it is characterized in that a plurality of claw seats (2) are annularly distributed on the upper surface of the clamp base station (1) and positioned on the outer side of the brake drum (5), the top end of each claw seat (2) is fixedly embedded with a claw body (3) through a pin shaft, the upper side and the lower side of the two ends of the clamping jaw body (3) are fixedly embedded with a clamping block (4), a movable cavity (6) is arranged inside the jaw body (3) and on one side of the clamping block (4), the interior of the movable cavity (6) is movably connected with a connecting plate (7), the surface of one side of the connecting plate (7) facing the clamping block (4) is fixedly connected with a plurality of limiting shafts (8), the outer surface of the clamping block (4) facing the connecting plate (7) is provided with a plurality of limiting holes (9) which can be clamped with the end part of the limiting shaft (8).

2. The lathe fixture for automatically centering the brake drum as claimed in claim 1, wherein a screw shaft (17) is rotatably connected to the outer surface of the connecting plate (7) away from the clamping block (4), and the screw shaft (17) is screwed with the inner wall of the jaw body (3).

3. The lathe fixture for automatically centering the brake drum as claimed in claim 2, wherein a connecting column (10) is slidably and fittingly sleeved on one end of the threaded shaft (17) far away from the connecting plate (7), a pull column (11) is fixedly connected to one end of the connecting column (10) far away from the threaded shaft (17), and a receiving groove (16) for receiving the pull column (11) is formed in the outer surface of the pawl body (3).

4. A lathe fixture for automatically centering a brake drum as claimed in claim 3, wherein a spline ring (12) is fixedly sleeved on an outer surface of one end of the pull stud (11) adjacent to the connecting stud (10), and a latch (13) capable of engaging with an edge tooth groove of the spline ring (12) is fixedly connected on an inner surface of one end of the retraction groove (16) adjacent to the connecting stud (10).

5. The lathe fixture for automatically centering the brake drum as claimed in claim 3, wherein a pair of rectangular positioning sliders (14) are symmetrically and fixedly connected to the outer surface of the connecting column (10), and a rectangular positioning sliding groove (15) matched with the rectangular positioning slider (14) is formed in the inner wall of the end portion of the screw shaft (17).