Combined tool for milling groove at bottom of oil cylinder

Abstract

The utility model relates to a combined tool for milling a groove at the bottom of an oil cylinder, which comprises a bottom plate, a reference sleeve and an adjustable workpiece fixing part, the reference sleeve is fixedly connected with the bottom plate, and the adjustable workpiece fixing part is movably connected with the reference sleeve; the adjustable workpiece fixing part comprises a middle plug and a front sleeve, and the middle plug is fixedly connected with the front sleeve; the front sleeve is provided with a baffle, a fastening bolt and a positioning bolt. The specification of the adjustable workpiece fixing part can be conveniently exchanged, the adaptability is high, the machining efficiency and quality are improved, and the machining safety and reliability are ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of clamping fixture, especially relates to a combined tooling for oil cylinder bottom groove milling. BACKGROUND

[0002] With the continuous development of industrial technology, hydraulic support is increasingly widely used in coal mining. As one of the key components, the quality of the cylinder bottom groove milling of the hydraulic support directly affects the working performance and service life of the entire support. In the design of the appearance of the jack, due to the limitation of the use conditions of some supports, a design structure with a deep groove will appear at the cylinder bottom position. The middle groove of this structure is deep, and the remaining size of the rear part of the groove is short. When the middle groove is processed, the movable part is difficult to clamp, and it is difficult to clamp stably. Only the milling amount can be reduced, and the milling speed can be reduced, so as to cause the processing speed to be slow, the milling surface to be rough, and the production efficiency and product quality to be seriously affected.

[0003] The utility model discloses a kind of outer spline groove milling tooling with publication number CN207139315U, which includes base, shaft radial fixing device and circumferential fixing device. The tooling fixes product to be processed in multiple directions, with high reliability, simple structure, easy to realize and convenient to operate, and the circumferential fixing device positions outer spline by push rod moving positioning pin, accurate positioning, improves the position precision of groove milling relative to outer spline. However, the positioning block of this patent cannot be replaced, and for different specifications of outer spline parts, new tooling needs to be redesigned and manufactured, increasing production cost and cycle. UTILITY MODEL CONTENT

[0004] In order to overcome the problems of difficult clamping, poor stability, slow processing speed and rough milling surface when milling the cylinder bottom groove of the oil cylinder in the prior art, the utility model provides a combined tooling for oil cylinder bottom groove milling, which can be applied to various cylinder bottom sizes, enhance clamping stability, increase cylinder bottom milling speed, and greatly improve processing efficiency and processing quality.

[0005] The utility model is realized through the following technical schemes: a kind of combined tooling for oil cylinder bottom groove milling, characterized by including bottom plate, reference sleeve and adjustable workpiece fixing part, reference sleeve is fixedly connected with bottom plate, and adjustable workpiece fixing part is movably connected in reference sleeve;Adjustable workpiece fixing part includes middle plug and front sleeve, and middle plug and front sleeve are fixedly connected;The front sleeve is provided with baffle, fastening bolt and positioning bolt.

[0006] Screw thread is processed on the reference sleeve, the middle plug is threadedly connected with the reference sleeve, screw thread is processed on the reference sleeve, the middle plug is threadedly connected with the reference sleeve, and the adjustable workpiece fixing part can be disassembled or replaced with different specifications.

[0007] One end of the front sleeve is fixedly connected with the intermediate plug, and the other end of the front sleeve is provided with more than one baffle, and the baffle is fixed on the front sleeve through the fastening bolt.

[0008] More than one positioning bolt hole is arranged on the outer wall of the front sleeve, and the positioning bolt is installed on the front sleeve through the positioning bolt hole.

[0009] The intermediate plug and the front sleeve are connected in a welding manner. BRIEF DESCRIPTION OF DRAWINGS

[0010] The utility model will be further described below according to the drawings and examples.

[0011] Fig. 1 It is a front view structure diagram of a combined tool for oil cylinder bottom groove milling of the utility model;

[0012] Fig. 2 It is a side view structure diagram of a combined tool for oil cylinder bottom groove milling of the utility model;

[0013] Fig. 3 It is a three-dimensional schematic diagram of a machining part of a combined tool for oil cylinder bottom groove milling of the utility model;

[0014] Reference signs: 1, bottom plate; 2, reference sleeve; 3, adjustable workpiece fixing part; 4, intermediate plug; 5, front sleeve; 6, baffle; 7, positioning bolt; 8, fastening bolt. DETAILED DESCRIPTION

[0015] The technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0016] In the description of the utility model, it is necessary to explain that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model; the terms "first", "second" and "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance, and in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0017] As shown in Figs. 1 to 3 A combined tool for milling groove of cylinder bottom of oil cylinder, characterized in that: including bottom plate 1, reference sleeve 2 and adjustable workpiece fixing part 3, reference sleeve 2 is fixedly connected with bottom plate 1, adjustable workpiece fixing part 3 is movably connected with reference sleeve 2; adjustable workpiece fixing part 3 includes intermediate plug 4 and front sleeve 5, intermediate plug 4 and front sleeve 5 are fixedly connected; front sleeve 5 is provided with baffle 6, fastening bolt 8 and positioning bolt 7.

[0018] Further, the reference sleeve 2 is machined with internal threads, the intermediate plug 4 is threadedly connected with the reference sleeve 2, and the adjustable workpiece fixing part 3 can be disassembled or replaced with different specifications to adapt to the machining of cylinder bottoms of different diameters, thereby improving the versatility and applicability of the combined tool for cylinder bottoms of different sizes.

[0019] Further, one end of the front sleeve 5 is fixedly connected with the intermediate plug 4, and the other end of the front sleeve 5 is provided with more than one baffle 6, and the baffles 6 are fixed on the front sleeve 5 by the fastening bolts 8. The design of the baffle 6 can effectively prevent the workpiece from sliding or shifting during machining, ensuring the machining precision, and the fastening bolts 8 provide sufficient clamping force to ensure the stability of the workpiece.

[0020] Further, more than one positioning bolt hole is provided on the outer wall of the front sleeve 5, and the positioning bolt 7 is installed on the front sleeve 5 through the positioning bolt hole. The positioning bolt 7 further stabilizes the position of the workpiece during machining to prevent any unnecessary movement, thereby improving the machining quality.

[0021] Further, the intermediate block 4 and the front sleeve 5 are connected by welding. The welding connection not only ensures the strength and durability of the structure, but also reduces the complexity of the assembly process, making the entire device more compact and easy to maintain.

[0022] In actual use, first, the adjustable workpiece fixing part 3 of the appropriate specification is combined with the reference sleeve 2 and tightened, then the part to be processed is placed in the front sleeve 5, the baffle 6 is fastened using the fastening bolt 8, the part to be processed is positioned and fixed in the front sleeve 5 using the positioning bolt 7, so that it cannot move, and finally the assembled tooling and the part are placed together on the machine tool workbench and pressed tightly.

[0023] The tooling has a simple and practical structure, the front sleeve specification can be conveniently changed according to the different cylinder bottom specifications, it is convenient for various specifications of parts, increases the connection area of the rear part of the part, strengthens the stability of the part during processing, greatly improves the processing efficiency of such parts, and guarantees the safety during processing.

[0024] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A combined tool for milling grooves on the bottom of a cylinder, characterized in that: It comprises a base plate (1), a reference sleeve (2) and an adjustable workpiece fixing portion (3), wherein the reference sleeve (2) is fixedly connected to the base plate (1), and the adjustable workpiece fixing portion (3) is movably connected to the reference sleeve (2); The adjustable workpiece fixing portion (3) comprises a middle plug (4) and a front sleeve (5), wherein the middle plug (4) and the front sleeve (5) are fixedly connected; the front sleeve (5) is provided with a baffle (6), a fastening bolt (8) and a positioning bolt (7).

2. The combined tooling for milling grooves on the bottom of a cylinder according to claim 1, characterized in that: The reference sleeve (2) is processed with an internal thread, the middle plug (4) is threadedly connected to the reference sleeve (2), and the adjustable workpiece fixing part (3) can be disassembled or replaced with different specifications.

3. A combined tool for milling grooves on the bottom of a cylinder according to claim 1 or 2, characterized in that: One end of the front sleeve (5) is fixedly connected to the middle plug (4), and the other end of the front sleeve (5) is provided with one or more baffles (6), and the baffles (6) are fixed to the front sleeve (5) by the fastening bolts (8).

4. A combined tool for milling grooves on the bottom of a cylinder according to claim 1 or 2, characterized in that: One or more positioning bolt holes are provided on the outer wall of the front sleeve (5), and the positioning bolts (7) are installed on the front sleeve (5) through the positioning bolt holes.

5. A combined tool for milling grooves on the bottom of a cylinder according to claim 1 or 2, characterized in that: The middle plug (4) and the front sleeve (5) are connected by welding.

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