CN100421867C - Cargo-carrying truck integral front spring left front support working process - Google Patents

Abstract

The present invention provides a cargo-carrying truck integral front spring left front support working process which comprises the following steps: two side surfaces of the right end are milled; the convex mesa of the left end is milled; the upper mesa is milled; a channel is milled; the inclined surface is milled; all small holes are drilled and countersunk; all big holes are drilled and reamed; a welding hole of a supporting pin is drilled, and chamfering is carried out; the bottom holes of all screw holes are drilled; the deep mesa is milled; each of the screw hole is tapped; a supporting pin with screw threads is welded. Each step of the working process of the present invention is scheduled reasonably, the positioning and the clamping of work pieces are facilitated, the accuracy requirement for the work pieces can be ensured, and the work efficiency is high.

Description

Cargo-carrying truck integral front spring left front support working process

Technical field

The present invention relates to the processing technology of the preceding left front support of spring of heavy motor truck monoblock type, belong to machine components technology field.

Background technology:

Present general assembling semiellipse formula leaf spring on heavy motor truck one bridge and two bridges, this spring and be fixed on vehicle frame on the spring support utilization before the form of hanging after cutting with scissors be connected.The preceding left socle of left socle and two springs is separate hinged with spring eye and hanger respectively behind traditional preceding spring.Vehicle in motion, owing to user overload, road conditions difference and reasons such as a bridge and two bridge resonance, these two support force more complicated often occur and the phenomenon of vehicle frame mutual dislocation, the accident that support ruptures also happens occasionally.For addressing the above problem, left socle before left socle behind the preceding spring and two springs is integrated, can form the left front support of spring before the high monoblock type of a good reliability, bulk strength height, packing precision, can improve the steering behaviour of vehicle.Spring after-poppet, two spring fore-stock and supporting pins before the left front support of spring comprises before this monoblock type, preceding spring after-poppet and two spring fore-stocks are connected to an integral support, also are provided with the welding hole position of supporting pin on this integral support, and supporting pin is welded in this position, hole.For the left front support of spring before making monoblock type reaches required precision in process, need to formulate the special processing technology of a cover, also there is not such technology at present.

Summary of the invention

The present invention is directed to the left front support of spring before the above-mentioned monoblock type, a kind of efficient height is provided, can guarantees the cargo-carrying truck integral front spring left front support working process of required precision.

For achieving the above object, the present invention adopts following technical solution:

Spring after-poppet, two spring fore-stock and supporting pins before the left front support of spring comprises before this cargo vehicle monoblock type, preceding spring after-poppet and two spring fore-stocks are connected to an integral support, also be provided with the welding hole position of supporting pin on this integral support, supporting pin is welded in this position, hole, and its machining process is:

(1) mills the right-hand member two sides;

(2) mill the left end boss face;

(3) mill upper table surface;

(4) mill out shelves;

(5) mill the inclined-plane;

(6) bore each aperture of ream;

(7) bore each macropore of expansion hinge;

(8) welding hole and the chamfering of brill supporting pin;

(9) bore each hole bottom outlet;

(10) mill deep mesa;

(11) each hole tapping;

(12) welding screw thread fulcrum post.

Each procedure arrangement of technical process of the present invention is reasonable, is convenient to workpiece location and clamping, can guarantee the required precision of workpiece, the working (machining) efficiency height.

Description of drawings

Fig. 1 is the structural representation of the preceding left front support of spring of the monoblock type among the present invention.

Fig. 2 is the left view of Fig. 1.

Fig. 3 be among Fig. 1 along the A-A line cutaway view.

Fig. 4 be among Fig. 1 along the B-B line cutaway view.

Wherein, 1, the side, 2, boss face, 3, upper table surface, 4, open shelves, 5, the inclined-plane, 6, aperture, 7, macropore, 8, the welding hole of supporting pin, 9, the silk hole, 10, deep mesa, 11, screw thread fulcrum post.

The specific embodiment

Embodiment:

Fig. 1, Fig. 2, Fig. 3 and Fig. 4 have provided the preceding left front supporting structure schematic diagram of spring of cargo vehicle monoblock type.Its machining process is:

(1) is coarse positioning with boss face 2 and upper table surface 3, clamps, on the X6232 milling machine, mill right-hand member two sides 1 (referring to Fig. 2) with φ 50 face cutters with moving press plate formula screw clamp clamping tool;

(2) with 1 location, side of processing,, on the X6232B milling machine, mill left end boss face 2 (referring to Fig. 2) with φ 80 face cutters with the moving press plate tool holder;

(3) with processing side 1 and location, bottom, clamp, on the B1-400P milling machine, mill upper table surface 3 (referring to Fig. 2) with φ 300 face and side cutters with moving press plate formula screw clamp clamping tool;

(4) with boss face 2 and upper table surface 3 location, clamp, on the X6142A milling machine, mill out shelves 4 (referring to Fig. 2) with φ 200 face and side cutters with the hook-type pressure plate tool;

(5) with boss face 2 and upper table surface 3 location,, on the X6232 milling machine, mill inclined-plane 5 (referring to Fig. 2) with φ 250 end mill(ing) cutters with moving press plate formula tool holder; This operation can manufacture and design special tooling and process.

(6), on the Z3040 drilling machine, bore each aperture 6 (referring to Fig. 1) of ream with the moving press plate tool holder;

(7) clamp with moving press plate formula screw clamp clamping tool, on the Z3040 drilling machine, bore and expand each macropore 7 (referring to Fig. 1) of hinge;

(8) clamp with moving press plate formula screw clamp clamping tool, on the T617A boring machine, bore the welding hole 8 and the chamfering (referring to Fig. 1) of supporting pin;

(9) clamp with the hook-type pressure plate tool, on the Z3040 drilling machine, bore the bottom outlet (referring to Fig. 1) in each hole 9; This operation can manufacture and design special tooling and process.

(10) with boss face 2 and upper table surface 3 location, clamp, on the X6232 milling machine, mill deep mesa 10 (referring to Fig. 3) with φ 50 end mill(ing) cutters with moving press plate formula screw clamp clamping tool;

(11) each hole 9 manual tapping;

(12) press shown position welding screw thread fulcrum post 11 (referring to Fig. 3).

Claims (1)

1. cargo-carrying truck integral front spring left front support working process, spring after-poppet, two spring fore-stock and supporting pins before the left front support of spring comprises before this monoblock type, preceding spring after-poppet and two spring fore-stocks are connected to an integral support, also be provided with the welding hole position of supporting pin on this integral support, supporting pin is welded in this position, hole, and its machining process is:

(1) mills the right-hand member two sides;

(2) mill the left end boss face;

(3) mill upper table surface;

(4) mill out shelves;

(5) mill the inclined-plane;

(6) bore each aperture of ream;

(7) bore each macropore of expansion hinge;

(8) welding hole and the chamfering of brill supporting pin;

(9) bore each hole bottom outlet;

(10) mill deep mesa;

(11) each hole tapping;

(12) welding screw thread fulcrum post.

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