Ion nitriding furnace for machine tool spindle

Abstract

The utility model discloses a machine tool spindle ion nitriding furnace, and relates to the technical field of nitriding furnace optimization. The device comprises a base used for bearing a material rack, and an electrode is constructed on the base; the top cover is hermetically buckled on the top surface of the base; the material frame comprises a bearing plate arranged above the base, a threaded rod is installed on the top face of the bearing plate, a pressing plate is arranged on the threaded rod in a sliding mode, an abutting bolt is installed on the threaded rod in a threaded mode, the abutting bolt abuts against the bottom face of the pressing plate, the pressing plate and the bearing plate are horizontally arranged, and a main shaft positioning mechanism is arranged between the pressing plate and the bearing plate. The main shaft positioning mechanism is provided with an embedding cavity for embedding the two ends of the main shaft, the pressing plate and the bearing plate are each provided with a communicating channel communicating with the embedding cavity, and the communicating channels communicate with an axial through hole of the main shaft; the problems that in the material treatment process of an existing ion nitriding furnace, materials are prone to toppling over, and the inner wall of a material pipeline is difficult to be effectively nitrided are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of nitriding furnace optimization, in particular to an ion nitriding furnace for a machine tool spindle. Background Art

[0002] Ion nitriding furnace is a kind of equipment for metal surface treatment in vacuum environment. It is mainly used to form a solid nitriding layer by bombardment of nitrogen ions, thereby improving the surface hardness and wear resistance of the material.

[0003] In the existing nitriding furnace, when processing shaft-shaped materials, in order to place the materials stably, they are generally placed vertically on the material table. This has several problems. First, one end of the material is closed, making it difficult to properly process the inner wall of the tube; second, the vertically placed material has a small contact surface with the material plate and is easy to fall over during the processing due to its length. Utility Model Content

[0004] The utility model aims to provide an ion nitriding furnace for a machine tool spindle, so as to solve the problem that in the process of processing materials in the existing ion nitriding furnace, materials are easy to dump and the inner wall of the material pipeline is difficult to be effectively nitrided.

[0005] In order to solve the above problems, the utility model adopts the following technical means:

[0006] A machine tool spindle ion nitriding furnace, comprising:

[0007] A base, used for carrying the material rack, wherein the base is provided with electrodes;

[0008] A top cover, sealingly buckled on the top surface of the base;

[0009] The material rack includes a support plate arranged above the base, a threaded rod is installed on the top surface of the support plate, a pressure plate is slidably provided on the threaded rod, a top bolt is threadedly installed on the threaded rod, the top bolt abuts against the bottom surface of the pressure plate, the pressure plate and the support plate are arranged horizontally, and a spindle positioning mechanism is constructed between the pressure plate and the support plate;

[0010] The spindle positioning mechanism is configured with an embedding cavity for embedding two ends of the spindle, and the pressure plate and the support plate are both provided with a communication channel communicating with the embedding cavity, and the communication channel is communicated with the axial through hole of the spindle.

[0011] Preferably, the spindle positioning mechanism includes a first rubber sleeve arranged on the bottom surface of the pressure plate and a second rubber sleeve arranged on the top surface of the supporting plate, the bottom surface of the first rubber sleeve is provided with the recessed embedding cavity, the top surface of the second rubber sleeve is provided with the recessed embedding cavity, and the first rubber sleeve and the second rubber sleeve are coaxially arranged.

[0012] Furthermore, a plurality of the spindle positioning mechanisms are provided between the pressure plate and the object-carrying plate, and different spindle positioning mechanisms are constructed with the embedding cavities with different inner diameters for positioning spindles with different outer diameters.

[0013] Furthermore, a support rod is installed on the bottom surface of the supporting plate, and two ends of the support rod are respectively connected to the bottom surface of the supporting plate and the top surface of the base.

[0014] Furthermore, a buckling mechanism is installed on the top surface of the base, and a receiving ring is provided on the bottom surface of the top cover, and the receiving ring is buckled and abutted with the buckling mechanism.

[0015] Furthermore, the bottom surface of the top cover is fitted with the top surface of the base, the bottom surface of the top cover is covered with a sealing rubber ring, and the sealing rubber ring is structured between the top cover and the base.

[0016] During use, the utility model has the following beneficial effects:

[0017] By using the sealing buckle connection between the base and the top cover, a nitriding cavity for nitriding is formed inside the top cover above the base. The machine tool spindle is vertically placed on the top surface of the support plate and inserted into the embedded cavity. By adjusting the top bolt, the distance between the pressure plate and the support plate is matched with the machine tool spindle, so that the top of the machine tool spindle is also loaded into the embedded cavity, so that the vertically placed spindle is positioned by clamping between the support plate and the pressure plate. Ensure the stability of the vertically placed spindle during the nitriding process. At the same time, by using the connecting channel set on the support plate and the pressure plate, even if the machine tool spindle is clamped at both ends, the internal channel of the machine tool spindle can also be connected to the atmosphere in the nitriding cavity through the connecting channel, thereby avoiding the situation that the inner wall of the machine tool spindle cannot be effectively nitrided because the two ends of the machine tool spindle are blocked when it is placed vertically and clamped. Moreover, by adjusting the distance between the support plate and the pressure plate, the material rack can be adapted to spindles of different lengths, and spindles of different lengths can be well clamped and stabilized. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the structure of the utility model after clamping the main shaft of a machine tool.

[0020] Among them, 1-base, 2-electrode, 3-top cover, 4-supporting plate, 5-threaded rod, 6-pressure plate, 7-top bolt, 8-main shaft, 9-connecting channel, 10-embedded cavity, 11-first rubber sleeve, 12-second rubber sleeve, 13-support rod, 14-fastening mechanism, 15-receiving ring, 16-sealing rubber ring. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0025] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Please refer to Figure 1 to Figure 2 As shown, a machine tool spindle ion nitriding furnace comprises:

[0028] A base 1 is used to carry a material rack, and an electrode 2 is constructed on the base 1;

[0029] A top cover 3, sealingly buckled on the top surface of the base 1;

[0030] The material rack includes a support plate 4 arranged above the base 1, a threaded rod 5 is installed on the top surface of the support plate 4, a pressing plate 6 is slidably provided on the threaded rod 5, a top bolt 7 is threadedly installed on the threaded rod 5, the top bolt 7 is abutted against the bottom surface of the pressing plate 6, the pressing plate 6 and the support plate 4 are arranged horizontally, and a spindle positioning mechanism is constructed between the pressing plate 6 and the support plate 4;

[0031] The spindle positioning mechanism is constructed with an embedding cavity 10 for embedding the two ends of the spindle 8 , and the pressure plate 6 and the support plate 4 are both provided with a connecting channel 9 connected with the embedding cavity 10 , and the connecting channel 9 is connected with the axial through hole of the spindle 8 .

[0032] In this way, by using the sealing buckle connection between the base 1 and the top cover 3, a nitriding cavity for nitriding is formed inside the top cover 3 above the base 1, and the machine tool spindle 8 is vertically placed on the top surface of the support plate 4 and inserted into the embedded cavity 10. By adjusting the top bolt 7, the distance between the pressure plate 6 and the support plate 4 is matched with the machine tool spindle 8, so that the top of the machine tool spindle 8 is also installed in the embedded cavity 10, so that the vertically placed spindle 8 is positioned by clamping between the support plate 4 and the pressure plate 6. Ensure the stability of the vertically placed spindle 8 during the nitriding process. At the same time, by using the connecting channel 9 set on the support plate 4 and the pressure plate 6, even if the machine tool spindle 8 is clamped at both ends, the internal channel of the machine tool spindle 8 can also be connected to the atmosphere in the nitriding cavity through the connecting channel 9, thereby avoiding the situation that the inner wall of the machine tool spindle 8 cannot be effectively nitrided due to the blocking of the two ends of the machine tool spindle 8 in the vertical placement and clamping state. Moreover, by adjusting the distance between the support plate 4 and the pressure plate 6, the material rack can be adapted to main shafts 8 of different lengths, and main shafts 8 of different lengths can be well clamped and stabilized.

[0033] Furthermore, the spindle positioning mechanism includes a first rubber sleeve 11 arranged on the bottom surface of the pressure plate 6 and a second rubber sleeve 12 arranged on the top surface of the supporting plate 4, the bottom surface of the first rubber sleeve 11 is provided with the recessed embedding cavity 10, the top surface of the second rubber sleeve 12 is provided with the recessed embedding cavity 10, and the first rubber sleeve 11 and the second rubber sleeve 12 are coaxially arranged.

[0034] In this way, the first rubber sleeve 11 is used to position the top end of the machine tool spindle 8, the second rubber sleeve 12 is used to position the bottom end of the machine tool spindle 8, and the atmosphere in the nitriding chamber can enter the inner cavity of the machine tool spindle 8 through the connecting channel 9.

[0035] Furthermore, a plurality of spindle positioning mechanisms are provided between the pressure plate 6 and the support plate 4 , and different spindle positioning mechanisms are constructed with the embedding cavities 10 with different inner diameters for positioning spindles 8 with different outer diameters.

[0036] Furthermore, a support rod 13 is installed on the bottom surface of the supporting plate 4, and the two ends of the support rod 13 are respectively connected to the bottom surface of the supporting plate 4 and the top surface of the base 1. The aforementioned support rod 13 is used to lift the supporting plate 4 to facilitate the atmosphere in the nitriding chamber to enter the machine tool spindle 8 through the connecting channel 9 below.

[0037] Meanwhile, a buckling mechanism 14 is installed on the top surface of the base 1 , and a receiving ring 15 is provided on the bottom surface of the top cover 3 . The receiving ring 15 is buckled and abutted with the buckling mechanism 14 .

[0038] Furthermore, the bottom surface of the top cover 3 is fitted with the top surface of the base 1 , and the bottom surface of the top cover 3 is covered with a sealing rubber ring 16 , and the sealing rubber ring 16 is constructed between the top cover 3 and the base 1 .

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A machine tool spindle ion nitriding furnace, characterized in that: include: A base (1) is used to support a material rack, and an electrode (2) is configured on the base (1); A top cover (3) sealingly fastened to the top surface of the base (1); The material rack comprises a support plate (4) arranged above the base (1), a threaded rod (5) being installed on the top surface of the support plate (4), a pressing plate (6) being slidably provided on the threaded rod (5), a top bolt (7) being threadedly installed on the threaded rod (5), the top bolt (7) being in contact with the bottom surface of the pressing plate (6), the pressing plate (6) and the support plate (4) being arranged horizontally, and a spindle positioning mechanism being constructed between the pressing plate (6) and the support plate (4); The spindle positioning mechanism is configured with an embedding cavity (10) for embedding two ends of the spindle (8), and the pressure plate (6) and the support plate (4) are both provided with a connecting channel (9) connected to the embedding cavity (10), and the connecting channel (9) is connected to the axial through hole of the spindle (8).

2. The machine tool spindle ion nitriding furnace according to claim 1, characterized in that: The spindle positioning mechanism comprises a first rubber sleeve (11) arranged on the bottom surface of the pressure plate (6) and a second rubber sleeve (12) arranged on the top surface of the support plate (4); the bottom surface of the first rubber sleeve (11) is provided with the recessed embedding cavity (10), and the top surface of the second rubber sleeve (12) is provided with the recessed embedding cavity (10); the first rubber sleeve (11) and the second rubber sleeve (12) are coaxially arranged.

3. The machine tool spindle ion nitriding furnace according to claim 1 or 2, characterized in that: A plurality of spindle positioning mechanisms are provided between the pressure plate (6) and the object receiving plate (4), and different spindle positioning mechanisms are configured with embedded cavities (10) with different inner diameters, for positioning spindles (8) with different outer diameters.

4. The machine tool spindle ion nitriding furnace according to claim 1, characterized in that: A support rod (13) is installed on the bottom surface of the support plate (4), and two ends of the support rod (13) are respectively connected to the bottom surface of the support plate (4) and the top surface of the base (1).

5. The machine tool spindle ion nitriding furnace according to claim 1, characterized in that: A buckling mechanism (14) is installed on the top surface of the base (1), and a receiving ring (15) is provided on the bottom surface of the top cover (3), wherein the receiving ring (15) is buckled and abutted against the buckling mechanism (14).

6. The machine tool spindle ion nitriding furnace according to claim 1, characterized in that: The bottom surface of the top cover (3) is arranged to fit the top surface of the base (1), and the bottom surface of the top cover (3) is covered with a sealing rubber ring (16). The sealing rubber ring (16) is constructed between the top cover (3) and the base (1).

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