Cylinder head inner hole honing positioning assembly

Abstract

The utility model provides a cylinder head inner hole honing and positioning assembly which comprises a sliding bottom plate, a cylinder head inner hole honing and positioning assembly and a cylinder head inner hole honing and positioning assembly. The sliding base is connected to the sliding bottom plate in a sliding mode, a positioning disc is arranged in the sliding base, a second round hole is formed in the positioning disc, and when the inner hole of the cylinder head is machined, the first round hole and the second round hole are concentric; the adjusting seat is fixed on the sliding bottom plate and comprises a supporting frame, a first supporting ring is fixed on the supporting frame, a threaded hole is formed in the first supporting ring, an inner cylinder is connected in the first supporting ring, a second supporting ring is in threaded connection with the top of the inner cylinder, and the inner cylinder is matched with a grinding head of a machine tool. The inner hole honing and positioning assembly is simple in structure, the cylinder head can be quickly positioned, and after the cylinder head is positioned, an inner hole of the cylinder head can be precisely honed.

Description

Technical Field

[0001] The utility model relates to the technical field of cylinder head processing, in particular to a cylinder head inner hole honing positioning component. Background Art

[0002] Cylinder head inner hole honing is one of the most important process steps in the engine manufacturing process, and its processing accuracy directly affects the performance and life of the engine. However, in the existing cylinder head inner hole honing process, the positioning process is relatively complicated and time-consuming, and often requires multiple manual adjustments, making it difficult to achieve fast and accurate positioning. In addition, since the grinding rod above the grinding head is easily offset during the honing process, the grinding head is also offset, and may even cause the part to be scrapped.

[0003] In the prior art, although some honing devices try to improve machining accuracy through different positioning methods, they often lack effective means to control the deviation of the grinding head. For example, some devices use a fixed positioning structure and cannot be flexibly adjusted according to different types of cylinder heads, resulting in poor adaptability; although some devices are equipped with a guide device, its structure is complex and inconvenient to adjust, making it difficult to meet actual production needs. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a cylinder head inner hole honing positioning assembly, which has a simple structure and can quickly realize the positioning of the cylinder head. After the cylinder head is positioned, the grinding rod of the grinding head can be limited by the inner tube, so that the grinding head can accurately hone its inner hole.

[0005] To achieve the above purpose, the utility model adopts the following technical solution: a cylinder head inner hole honing positioning assembly, comprising:

[0006] A sliding bottom plate, with a first circular hole opened in the middle of the sliding bottom plate;

[0007] A sliding seat, the sliding seat is slidably connected to the sliding bottom plate, the sliding seat has a positioning plate, the positioning plate has a second circular hole, when the inner hole of the cylinder head is processed, the first circular hole and the second circular hole are concentric;

[0008] An adjustment seat is fixed on the sliding base plate, which includes a support frame, a first support ring is fixed on the support frame, a threaded hole is opened in the first support ring, an inner cylinder is connected to the first support ring, a second support ring is threadedly connected to the top of the inner cylinder, and the inner cylinder matches the grinding head of the machine tool.

[0009] Furthermore, slide rails are fixed on both sides of the sliding base plate, and the sliding seat is slidably connected to the slide rails.

[0010] Furthermore, a push-pull handle is fixed to the end of the sliding seat.

[0011] Furthermore, the positioning plate has a plurality of protrusions, and the protrusions are at the same height.

[0012] Furthermore, the lower surface of the sliding seat and the upper surface of the sliding base plate also have a flow groove.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The inner hole honing positioning assembly has a simple structure and can quickly realize the positioning of the cylinder head. After the cylinder head is positioned, the inner hole can be accurately honed;

[0015] 2. By adjusting the inner cylinder on the seat to match the grinding head, the grinding head of the honing machine can be prevented from shifting during the processing, which can effectively improve the processing quality of the inner hole of the cylinder head;

[0016] 3. The raised part on the positioning plate ensures that the cylinder head can be placed stably during positioning, and iron filings are not easily deposited on the raised part, which will not cause scratches on the bottom of the cylinder head. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a structural diagram of the positioning plate of the utility model;

[0019] Figure 3 This is a connection structure diagram of the first support ring and the second support ring of the utility model;

[0020] Figure 4 It is a side view of the utility model;

[0021] In the figure: 1, sliding bottom plate; 2, first round hole; 3, sliding seat; 4, positioning plate; 5, second round hole; 6, adjustment seat; 7, support frame; 8, first support cylinder; 9, inner cylinder; 10, second support ring; 11, grinding head; 12, slide rail; 13, cylinder head; 14, push-pull handle; 15, raised part; 16, flow groove; 17, grinding head; 18, grinding rod; DETAILED DESCRIPTION

[0022] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0023] like Figure 1-4 As shown, the embodiment of the utility model provides a cylinder head inner hole honing positioning assembly, comprising:

[0024] A sliding bottom plate 1, with a first circular hole 2 opened in the middle of the sliding bottom plate 1;

[0025] A sliding seat 3, wherein the sliding seat 3 is slidably connected to the sliding bottom plate 1, wherein the sliding seat 3 has a positioning plate 4, wherein the positioning plate 4 has a second circular hole 5, and when machining the inner hole of the cylinder head, the first circular hole 2 and the second circular hole 5 are concentric;

[0026] An adjustment seat 6, which is fixed on the sliding base plate 1, includes a support frame 7, on which a first support tube 8 is fixed, a threaded hole is opened in the first support tube 8, an inner tube 9 is connected to the first support tube 8, a second support ring 10 is threadedly connected to the top of the inner tube 9, and the inner tube 9 matches the grinding head 11 of the machine tool.

[0027] The process of the utility model when in use is as follows: first, the cylinder head 13 that needs to be honed is positioned and connected to the positioning plate 4. Since the positioning plate 4 is provided with a second circular hole 5, the cylinder barrel of the cylinder head 13 can be matched and positioned through the second circular hole 5. Then, the sliding seat 3 is pushed forward so that the cylinder head 13 is located below the support frame 7 of the adjustment seat 6 (it does not need to be too precise, and the cylinder barrel of the cylinder head 13 and the inner barrel 9 are roughly aligned). The first support barrel 8 and the second support ring 10 are connected to the support frame 7. The inner barrel 9 in the second support ring 10 is connected to the first support barrel 8 and exceeds the lower surface of the first support barrel 8, but is aligned with the cylinder head 1 3 has a gap at the top. At this time, the grinding head 11 of the machine tool moves downward and enters the inner cylinder 9 first. Since the bottom of the grinding head 11 has a cone, it can play a certain guiding effect. After it completely enters the cylinder of the cylinder head 13, the cylinder head 13 is automatically aligned. Finally, the grinding head 11 rotates and runs. During the operation, the grinding stone on the grinding head expands outward under the action of the tensioning mechanism inside the grinding head, and begins to hone the inner hole of the cylinder of the cylinder head 13. At the same time, the grinding rod is in the inner cylinder and is limited by the inner cylinder. After the processing is completed, the grinding head 11 withdraws, pulls out the sliding seat 3, and finally removes the cylinder head 13. Among them, when facing cylinder heads 13 of different heights, the inner cylinder 9 can be replaced so that the gap between it and the upper surface of the cylinder head 13 is kept at about 1 cm (because the inner cylinder cannot be limited in the gap area, so if the gap is too large, the grinding head may still be offset). In this way, the grinding rod of the grinding head 11 can be in the inner cylinder 9 to avoid its offset during processing.

[0028] Furthermore, the sliding base plate 1 is fixed with slide rails 12 on both sides, and the sliding seat 3 is slidably connected to the slide rails 12. Specifically, the utility model has slide rails 12 fixed on both sides of the sliding base plate 1, and the sliding seat 3 is slidably connected to the slide rails 12, so that the sliding base plate 1 can slide more smoothly. Specifically, a push-pull handle 14 is fixed at the end of the sliding seat 3, which is convenient for the operator to operate the push-pull handle 14.

[0029] Furthermore, the positioning plate 4 has a plurality of protrusions 15, which are at the same height. The protrusions 15 on the positioning plate 4 ensure that the cylinder head 13 can be stably placed during positioning, and iron filings are not easily deposited on the protrusions 15, which will not cause the bottom of the cylinder head 13 to be scratched.

[0030] Furthermore, the lower surface of the sliding seat 3 and the upper surface of the sliding bottom plate 1 also have a flow groove 16. Through the provision of the flow groove 16, the coolant used for cooling the inner hole of the cylinder head 13 during processing can flow out from the flow groove 16, and at the same time, it is also convenient to discharge the iron chips during processing.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A cylinder head inner hole honing positioning assembly, characterized in that: include: A sliding bottom plate, with a first circular hole opened in the middle of the sliding bottom plate; A sliding seat, the sliding seat is slidably connected to the sliding bottom plate, the sliding seat has a positioning plate, the positioning plate has a second circular hole, when the inner hole of the cylinder head is processed, the first circular hole and the second circular hole are concentric; An adjustment seat is fixed on the sliding base plate, which includes a support frame, a first support ring is fixed on the support frame, a threaded hole is opened in the first support ring, an inner cylinder is connected to the first support ring, a second support ring is threadedly connected to the top of the inner cylinder, and the inner cylinder matches the grinding head of the machine tool.

2. A cylinder head inner hole honing positioning assembly according to claim 1, characterized in that: Sliding rails are fixed on both sides of the sliding bottom plate, and the sliding seat is slidably connected to the sliding rails.

3. A cylinder head inner hole honing positioning assembly according to claim 2, characterized in that: A push-pull handle is fixed at the end of the sliding seat.

4. A cylinder head inner hole honing positioning assembly according to claim 3, characterized in that: The positioning plate is provided with a plurality of protrusions, and the protrusions are at the same height.

5. A cylinder head inner hole honing positioning assembly according to claim 4, characterized in that: The lower surface of the sliding seat and the upper surface of the sliding bottom plate also have a flow groove.

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