阅读说明：本技术 一种摆动臂总成铣装置 (Milling device for swing arm assembly ) 是由 万海 于 2020-11-30 设计创作，主要内容包括：本发明公开了一种摆动臂总成铣装置,包括定位底座安装在定位底座上的压紧组件、压紧装置、套筒定位座、圆弧定位块总成、矩形或异形定位块总成；所述压紧装置和压紧组件分设于定位底座的两端,且压紧装置的纵向中心线与压紧组件的横向中心线位于同一条直线上；压紧装置的一侧设有套筒定位座；圆弧定位块总成位于压紧组件内,矩形或异形定位块总成设于压紧装置与压紧组件之间,且与圆弧定位块总成平行相邻。解决了摆动臂总成关键部位机加时,定位、找正繁琐的问题,提高了摆动臂总成机加效率、质量、精度。而且由于圆弧定位块、圆弧定位块、矩形定位块总成、异形定位块总成、压紧装置的可互换性、可移动性,使得该装置具备一定的通用性。(The invention discloses a swing arm assembly milling device which comprises a positioning base, a pressing component, a pressing device, a sleeve positioning seat, an arc positioning block assembly and a rectangular or special-shaped positioning block assembly, wherein the positioning base is arranged on the positioning base; the pressing device and the pressing assembly are respectively arranged at two ends of the positioning base, and the longitudinal center line of the pressing device and the transverse center line of the pressing assembly are positioned on the same straight line; one side of the pressing device is provided with a sleeve positioning seat; the arc positioning block assembly is positioned in the pressing component, and the rectangular or special-shaped positioning block assembly is arranged between the pressing device and the pressing component and is parallel and adjacent to the arc positioning block assembly. The problem of during swing arm assembly key position machine adds, location, alignment are loaded down with trivial details is solved, swing arm assembly machine adds efficiency, quality, precision has been improved. And due to the interchangeability and the movability of the arc positioning block, the rectangular positioning block assembly, the special-shaped positioning block assembly and the pressing device, the device has certain universality.)

1. The utility model provides a swing arm assembly mills device which characterized in that: the device comprises a positioning base, a pressing component arranged on the positioning base, a pressing device, a sleeve positioning seat, an arc positioning block assembly and a rectangular or special-shaped positioning block assembly;

the pressing device and the pressing assembly are respectively arranged at two ends of the positioning base, and the longitudinal center line of the pressing device and the transverse center line of the pressing assembly are positioned on the same straight line; one side of the pressing device is provided with a sleeve positioning seat; the arc positioning block assembly is positioned in the pressing component, and the rectangular or special-shaped positioning block assembly is arranged between the pressing device and the pressing component and is parallel and adjacent to the arc positioning block assembly.

2. The swing arm assembly milling apparatus of claim 1, wherein: the positioning base is provided with a reference surface and comprises a bottom plate, two positioning blocks are vertically and parallelly arranged at one end of the bottom plate and are respectively a positioning block I and a positioning block II, the upper end of each positioning block is an arc-shaped surface, a transition plate is connected between the two positioning blocks, and a plurality of mounting positioning holes are also preset in the bottom plate.

3. The swing arm assembly milling apparatus of claim 1, wherein: the side of the positioning base is provided with a connecting plate, rib plates are arranged on two sides of the connecting plate, and a U-shaped notch is formed in the connecting plate.

4. The swing arm assembly milling apparatus of claim 2, wherein: the positioning block II is located on the inner side of the positioning block I, one side face, far away from the positioning block I, of the positioning block II is in a step shape, and the step face is a horizontal plane.

5. The swing arm assembly milling apparatus of claim 4, wherein: the rectangular or special-shaped positioning block assembly is fixedly arranged on the stepped surface of the positioning block II, and the upper end surface of the special-shaped positioning block assembly is provided with an arc surface.

6. The swing arm assembly milling apparatus of claim 2, wherein: the arc positioning block assembly comprises an arc positioning block I and an arc positioning block II which are respectively arranged on the arc surfaces of the positioning block I and the positioning block II, the inner diameter of the arc positioning block II is larger than that of the arc positioning block I, both the arc positioning block I and the arc positioning block II are provided with positioning flanges, and fixing holes are formed in the positioning flanges.

7. The swing arm assembly milling apparatus of claim 2, wherein: the pressing assembly comprises two groups of supports which are respectively arranged at two ends of the positioning block I and the positioning block II and fixed on a bottom plate of the positioning base through preset mounting positioning holes, an arc-shaped pressing plate is hinged to the upper end of one group of supports, the upper end of the other group of supports is connected with an eyelet bolt through a pin shaft and a cotter pin, and a first nut used for locking the arc-shaped pressing plate is sleeved on the eyelet bolt.

8. The swing arm assembly milling apparatus of claim 1, wherein: the pressing device comprises a base, a first screw rod, a first pressing plate and a nut with a cover, the base is fixed on the positioning base through a bolt, the first pressing plate is fixed on the base through the first screw rod and the nut with the cover, and a waist-shaped hole is formed in the first pressing plate.

9. The swing arm assembly milling apparatus of claim 1, wherein: the sleeve positioning seat comprises a positioning column, a second screw rod, a second nut and a second pressing plate, the second pressing plate is concentrically or eccentrically fixed on the positioning column through the second screw rod and the second nut, and the positioning column is fixed on the positioning base.

Technical Field

The invention relates to an auxiliary positioning device for machining a swing arm assembly, in particular to a milling device for the swing arm assembly.

Background

The swing arm assembly belongs to a part of a drive axle of the flat-bed transport vehicle, and the swing arm assembly is matched with the rotating frame assembly and the suspension oil cylinder on the drive axle for use to control the extension and the steering of the drive axle, so that the lifting of a flat-bed transport vehicle platform and the steering of the flat-bed transport vehicle are realized, and the functions of the swing arm assembly are equivalent to a suspension device and a steering device.

As shown in fig. 1 to 3, a structure diagram of one of the swing arm assemblies mainly includes a limiting block 11, a sleeve 12, an inner hole 13, and a pin assembly 14, and when a numerical control horizontal milling and boring machine machines the swing arm assembly, the key dimensions of the swing arm assembly to be machined include:(1) the inclined plane of the limiting block 11 controls the upper and lower swing angles of the driving axle tire; (2) the distance dimension A is used for controlling the vertical height difference between the central line of the pin assembly and a hinge point (the hinge point between the rotating frame and the swing arm) when the suspension oil cylinder is contracted to the shortest length, and is used for controlling the lowest position of the platform of the flat-bed transport vehicle; (3) distance dimension B₁、B₂When the size is used for controlling the suspension oil cylinder to be shortened to the shortest, the horizontal distance between the hinge point and the suspension oil cylinder and the horizontal distance between the suspension oil cylinder and the wheels are avoided, and interference is avoided; (4) i view inner hole diameter D₁The diameter is required to be matched with the head of the suspension oil cylinder; (5) E-E view sleeve inner diameter D₂The inner circle verticality controls the rotating frame assembly and the oil cylinder pin to be hinged with the inner circle; (6) E-E view sleeve length H and end face symmetry ensure even spacing between the tire and the swing arm.

The swing arm assembly milling device in the prior art needs repeated measurement during processing, is long in alignment time, poor in processing precision and low in production and processing efficiency.

Disclosure of Invention

The invention provides a swing arm assembly milling device which effectively solves the problems that the existing swing arm assembly milling device needs to repeatedly measure during processing, alignment time is long, processing precision is poor, and production and processing efficiency is low.

In order to achieve the purpose, the invention adopts the following technical scheme:

a milling device for a swing arm assembly comprises a positioning base, a pressing component arranged on the positioning base, a pressing device, a sleeve positioning seat, an arc positioning block assembly and a rectangular or special-shaped positioning block assembly;

the pressing device and the pressing assembly are respectively arranged at two ends of the positioning base, and the longitudinal center line of the pressing device and the transverse center line of the pressing assembly are positioned on the same straight line; one side of the pressing device is provided with a sleeve positioning seat; the arc positioning block assembly is positioned in the pressing component, and the rectangular or special-shaped positioning block assembly is arranged between the pressing device and the pressing component and is parallel and adjacent to the arc positioning block assembly.

Preferably, the positioning base is provided with a reference surface and comprises a bottom plate, two positioning blocks are vertically and parallelly arranged at one end of the bottom plate and are respectively a positioning block I and a positioning block II, the upper end face of each positioning block is an arc-shaped face, a transition plate is connected between the two positioning blocks, and a plurality of installation positioning holes are preset in the bottom plate.

Preferably, the side edge of the positioning base is provided with a connecting plate, rib plates are arranged on two sides of the connecting plate, and the connecting plate is provided with a U-shaped notch.

Preferably, the positioning block II is located on the inner side of the positioning block I, one side face, far away from the positioning block I, of the positioning block II is in a step shape, and the step face is a horizontal plane.

Preferably, the rectangular or special-shaped positioning block assembly is fixedly arranged on the stepped surface of the positioning block II, wherein the upper end surface of the special-shaped positioning block assembly is provided with an arc surface.

Preferably as above-mentioned scheme, circular arc locating piece assembly includes circular arc locating piece I and circular arc locating piece II, locates on the arcwall face of locating piece I and locating piece II separately, and the internal diameter of circular arc locating piece II is greater than I internal diameter of circular arc locating piece, and both all are equipped with the location flange, are equipped with the fixed orifices on the location flange.

Preferably, the pressing assembly comprises two groups of supports which are respectively arranged at the left end and the right end of the positioning block I and the positioning block II and are fixed on a bottom plate of the positioning base through preset mounting positioning holes, an arc-shaped pressing plate is hinged to the upper end of one group of supports, the upper end of the other group of supports is connected with an eyelet bolt through a pin shaft and a cotter pin, and a first nut used for locking the arc-shaped pressing plate is sleeved on the eyelet bolt.

Preferably, the pressing device comprises a base, a first screw rod, a first pressing plate and a nut with a cover, the base is fixed on the positioning base through a bolt, the first pressing plate is fixed on the base through the first screw rod and the nut with the cover, and the first pressing plate is provided with a waist-shaped hole.

Preferably, the sleeve positioning seat comprises a positioning column, a second screw, a second nut and a second pressing plate, the second pressing plate is concentrically or eccentrically fixed on the positioning column through the second screw and the second nut, and the positioning column is fixed on the positioning base.

Due to the structure, the invention has the advantages that:

the problem of during swing arm assembly key position machine adds, location, alignment are loaded down with trivial details is solved, swing arm assembly machine adds efficiency, quality, precision has been improved. And due to the interchangeability and the movability of the arc positioning block, the rectangular positioning block assembly, the special-shaped positioning block assembly and the pressing device, the device has certain universality.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below.

FIG. 1 is a schematic view of a swing arm assembly;

FIG. 2 is an enlarged view of a portion of FIG. 1 at I;

FIG. 3 is a cross-sectional view taken along line E-E of FIG. 1;

FIG. 4 is a schematic view of the overall structure of the present invention;

FIG. 5 is a schematic structural view of a positioning base according to the present invention;

FIG. 6 is a schematic view of the construction of the hold-down assembly of the present invention;

FIG. 7 is a schematic view of the pressing device of the present invention;

FIG. 8 is a schematic structural view of the sleeve positioning seat of the present invention;

FIG. 9 is a schematic structural view of a circular arc positioning block assembly according to the present invention;

FIG. 10 is a schematic structural diagram of the profiled locating block of the present invention;

fig. 11 and 12 are schematic views illustrating positioning of the swing assembly in the present invention.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 4 to 12, the present embodiment provides a swing arm assembly milling device, which includes a positioning base 2, a pressing component 3 mounted on the positioning base 2, a pressing device 4, a sleeve positioning seat 5, an arc positioning block assembly 6, and a rectangular or special-shaped positioning block assembly 7;

the pressing device 4 and the pressing component 3 are respectively arranged at two ends of the positioning base 2, and the longitudinal center line of the pressing device 4 and the transverse center line of the pressing component 3 are positioned on the same straight line; one side of the pressing device 4 is provided with a sleeve positioning seat 5; the arc positioning block assembly 6 is positioned in the pressing component 3, and the rectangular or special-shaped positioning block assembly 7 is arranged between the pressing device 4 and the pressing component 3 and is adjacent to the arc positioning block assembly 6 in parallel.

Wherein:

the positioning base 2 is provided with a reference surface, the positioning base 2 comprises a bottom plate 21, two positioning blocks are vertically arranged on the bottom plate 21 in parallel at one end and are respectively a positioning block I22 and a positioning block II 23, the upper end surfaces of the positioning blocks are arc-shaped surfaces, a transition plate 24 is connected between the two positioning blocks, and a plurality of installation positioning holes 25 are also preset on the bottom plate 21.

In this embodiment, a connecting plate 26 is disposed on a side edge of the positioning base 2, rib plates 27 are disposed on two sides of the connecting plate 26, and a U-shaped notch is disposed on the connecting plate 26.

The positioning block II 23 is located on the inner side of the positioning block I22, one side face, far away from the positioning block I22, of the positioning block II 23 is in a step shape, and the step face is a horizontal plane.

The rectangular or special-shaped positioning block assembly 7 is fixedly arranged on the stepped surface of the positioning block II 23, and the upper end surface of the special-shaped positioning block assembly is provided with an arc surface 71.

The arc positioning block assembly 6 comprises an arc positioning block I61 and an arc positioning block II 62 which are respectively arranged on the arc surfaces of the positioning block I22 and the positioning block II 23, the inner diameter of the arc positioning block II 62 is larger than that of the arc positioning block I61, both the arc positioning block II 62 and the arc positioning block I61 are provided with positioning flanges 63, and the positioning flanges 63 are provided with fixing holes.

The pressing assembly 3 comprises two groups of supports 31 which are respectively arranged at the left end and the right end of the positioning block I22 and the positioning block II 23 and are fixed on the bottom plate 21 of the positioning base 2 through preset mounting positioning holes 25, the upper ends of one group of supports 31 are hinged to arc-shaped pressing plates 32 through pin shafts 34, the upper ends of the other group of supports 31 are connected with eyelet bolts 33 through pin shafts 34 and cotter pins 35, and first nuts used for locking the arc-shaped pressing plates 32 are sleeved on the eyelet bolts 33.

The pressing device 4 comprises a base 41, a first screw 42, a first pressing plate 43 and a nut 44 with a cover, the base is fixed on the positioning base 2 through bolts, the first pressing plate 43 is fixed on the base through the first screw 42 and the nut 44 with the cover, and a waist-shaped hole is formed in the first pressing plate 43.

The sleeve positioning seat 5 comprises a positioning column 51, a second screw 52, a second nut and a second pressing plate 53, the second pressing plate 53 is concentrically or eccentrically fixed on the positioning column 51 through the second screw 52 and the second nut, and the positioning column 51 is fixed on the positioning base 2.

When in use, the components are assembled according to the following steps:

firstly, assembling an arc-shaped pressing plate 32, a support 31, a movable joint bolt 33 and a pin shaft 34 of a pressing component 3, loading the pressing component 3 on a positioning base 2, and pressing and positioning a swinging arm pin assembly 14;

secondly, assembling a base 41 and a first screw 42 of the pressing device 4, and loading the base 41 on the positioning base 2 for pressing and positioning the limiting block 11 of the swing arm;

loading an arc positioning block I61 and an arc positioning block II 62 on the arc surfaces of a positioning block I22 and a positioning block II 23 of the positioning base 2, and matching with the pressing component 3;

loading a rectangular positioning block assembly or a special-shaped positioning block assembly on the stepped surface of a positioning block II 23 of the positioning base 2 (the rectangular positioning block assembly and the special-shaped positioning block assembly cannot be loaded at the same time and can be replaced and installed according to a specific state) for positioning when the inner hole 13 of the swing arm is machined;

and fifthly, assembling the positioning column 51, the second screw rod 52, the second nut and the second pressing plate 53 of the sleeve positioning seat 5, and loading the positioning column 51 on the positioning base 2 for compressing and positioning the sleeve 12 of the swing arm.

Step sixthly, loading the swing arm assembly on the device;

and step seventhly, aligning the reference surface of the positioning base 2 to complete positioning and clamping of the swing arm assembly.

The milling device for the swing arm assembly of the embodiment solves the problems of complex positioning and alignment during machining of the key part of the swing arm assembly, and improves machining efficiency, quality and precision of the swing arm assembly. Due to the interchangeability and the mobility of the arc positioning block I, the arc positioning block II, the rectangular positioning block assembly, the special-shaped positioning block assembly and the pressing device, the device has certain universality.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to 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.