CN204565061U - A kind of casting mould producing braking clamp caliper - Google Patents

Abstract

The utility model is a kind of casting mould producing braking clamp caliper, include cup, cup lower end is provided with keeps away slag cross gate, the two ends keeping away slag cross gate are arranged with two sprues, described sprue is connected to form by the thick sprue of epimere and the thin sprue of hypomere, a decompression cross gate is respectively provided with in the bottom of thick sprue and thin sprue, every bar decompression cross gate is upwards equipped with an ingate, described ingate leads to the bottom of casting pressing port, and casting pressing port is communicated with foundry goods die cavity by riser neck; The utility model is owing to have employed bottom gating, and have employed three grades of thin blank pressing technologies and carry out keeping away Slag treatment, so just do not need the casting technique using other reduction production efficiencys such as screen pack, increase cost and molten iron handling process, do not bring other working strength, avoid the defects such as braking clamp caliper sand holes, slag blister, in the middle of the production being mainly used in braking clamp caliper simultaneously.

Description

A casting mold for producing brake caliper body

technical field

The utility model relates to the field of manufacturing automobile brake parts, in particular to a casting mold for producing brake calipers.

Background technique

The caliper body is one of the main parts of the automotive hydraulic disc brake. It is used in conjunction with the brake piston, brake disc, friction plate, brake bracket, etc. after processing. It is the most concentrated stress in the car and withstands variable load pressure. The most frequent parts are directly related to the safety performance of the car, so its design standards are very strict, and the manufacturing process and product testing are required to meet the specifications; the casting material is ductile iron, and the graphite nodularization rate is above 85%, and it needs to be tested 100% non-destructive testing, without any sensitive defects that impair fatigue life and impact resistance, especially there must be no shrinkage cavity, shrinkage porosity, etc. inside, and casting defects such as pores, porosity, slag holes, sand holes, and cracks are not allowed; In order to reduce slag trachoma, at this stage domestic filter screens are mainly used to reduce slag in molten iron, but since the filter screen is a disposable product, it not only increases the cost, but also causes secondary pollution to the molten iron. Increase the gate nest, which reduces the utilization rate of molten iron.

Contents of the invention

The purpose of this utility model is to provide a casting mold for producing brake caliper bodies which is simple, efficient and has a high qualified rate of casting products, aiming at the above-mentioned problems and deficiencies in the existing casting molds for brake caliper bodies.

The specific scheme of the utility model is: a casting mold for producing a brake caliper body, including a sprue cup, the lower end of the sprue cup is provided with a slag-avoiding runner, and two ends of the slag-avoiding runner are symmetrically arranged. The sprue is composed of a thick sprue in the upper section and a thin sprue in the lower section, and a decompression runner is provided at the bottom of the thick sprue and the thin sprue, each Each of the decompression runners is provided with an inner runner upward, and the inner runner leads to the bottom of the riser of the casting, and the riser of the casting communicates with the cavity of the casting through the riser neck.

In the utility model, the junction of the slag avoiding runner and the thick sprue is provided with a blank holder A.

In the utility model, the joints of the thick sprue, the thin sprue and their corresponding decompression runners are all provided with a blank holder B.

In the utility model, each decompression runner described in the utility model is provided with a blank holder C at the junction of the corresponding inner runner.

The beneficial effects obtained by the utility model: due to the adoption of the bottom injection pouring system and the use of the three-stage thin blanking process for slag avoidance treatment, there is no need to use filter screens and other other methods to reduce production efficiency, increase costs and treat molten iron The advanced casting process does not bring additional work intensity, and at the same time avoids defects such as trachoma and slag holes in the brake caliper body.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the utility model;

Fig. 2 is a schematic diagram of the structure in the direction of A-A in Fig. 1;

Fig. 3 is a schematic diagram of the structure along the B-B direction in Fig. 1 .

In the figure: 1—casting cavity, 2—gate cup, 3—slag avoiding runner, 4—blank A, 5—thick sprue, 6—blank C, 7—blank B, 8— Thin sprue, 9—casting riser, 10—riser neck, 11—inner runner, 12—decompression runner.

Detailed ways

Referring to Fig. 1-Fig. 3, the utility model is a casting mold for producing a brake caliper body, including a sprue cup 2, the lower end of the sprue cup is provided with a slag-avoiding runner 3, and the two ends of the slag-avoiding runner Two sprues are symmetrically arranged, and the sprue is composed of a thick sprue 5 in the upper section and a thin sprue 8 in the lower section, and a sprue is provided at the bottom of the thick sprue and the thin sprue Decompression runners 12, each decompression runner is provided with an inrunner 11 upwards, the inrunner leads to the bottom of the casting riser 9, and the casting riser passes through the riser neck 10 and the casting cavity 1 connected.

In this embodiment, the junction of the slag avoiding runner and the thick sprue is provided with a blank holder A4.

In this embodiment, the joints of the thick sprue, thin sprue and their corresponding decompression runners are all provided with a blank holder B7.

In this embodiment, each decompression runner and the corresponding ingate are connected with a blank holder C6.

Because the utility model adopts the bottom pouring pouring system, and adopts the three-stage thin blanking process for slag avoidance treatment, it does not need to use filter screens and other casting processes that reduce production efficiency, increase costs and process flow of molten iron, It does not bring additional work intensity, and at the same time avoids defects such as sand holes and slag holes in the brake caliper body.

Claims (4)

1. produce the casting mould of braking clamp caliper for one kind, include cup, cup lower end is provided with keeps away slag cross gate, the two ends keeping away slag cross gate are arranged with two sprues, it is characterized in that: described sprue is connected to form by the thick sprue of epimere and the thin sprue of hypomere, a decompression cross gate is respectively provided with in the bottom of thick sprue and thin sprue, every bar decompression cross gate is upwards equipped with an ingate, described ingate leads to the bottom of casting pressing port, and casting pressing port is communicated with foundry goods die cavity by riser neck.

2. a kind of casting mould producing braking clamp caliper according to claim 1, is characterized in that: described in keep away slag cross gate and thick sprue junction is provided with flanging A.

3. a kind of casting mould producing braking clamp caliper according to claim 1, is characterized in that: described thick sprue, thin sprue are equipped with flanging B with respective corresponding cross gate junction of reducing pressure.

4. a kind of casting mould producing braking clamp caliper according to claim 1, is characterized in that: described each decompression cross gate is equipped with flanging C with corresponding ingate junction.