Nitriding treatment tool for annular parts of new energy automobile

Abstract

The utility model relates to the technical field of nitriding furnace tools, and discloses a nitriding treatment tool for an annular part of a new energy automobile, the nitriding treatment tool comprises a ventilation base, and a plurality of ventilation holes for gas circulation are formed in the ventilation base; the supporting frame comprises a fixing part arranged on the ventilation base and a placing part arranged on the fixing part through a connecting part; the multiple material penetrating rods are arranged, the multiple material penetrating rods are all arranged on the containing part, and the material penetrating rods are used for supporting and limiting the annular workpieces; when the annular workpiece is placed, the placing part is installed on the fixing part, the multiple material penetrating rods are fixedly installed on the placing part, then the fixing part is fixedly installed on the ventilation base, the annular workpiece is arranged on the material penetrating rods in a sleeving mode, and the annular workpiece is supported and limited through the material penetrating rods. The device has the effects that the number of annular workpieces placed in the nitriding furnace in the same batch is increased, and the utilization rate of the internal space of the nitriding furnace is increased.

Description

Technical Field

[0001] The present application relates to the technical field of nitriding furnace tooling, and in particular to a nitriding treatment tooling for annular parts of new energy vehicles. Background Art

[0002] Nitriding is a chemical heat treatment process that allows nitrogen atoms to penetrate into the surface of a workpiece in a certain medium at a certain temperature. Gas nitriding is a common nitriding technology. Gas nitriding is to place the metal workpiece in a sealed container, pass flowing nitrogen and heat it. After a long period of heat preservation, the active nitrogen atoms produced by the thermal decomposition of nitrogen are continuously adsorbed on the surface of the metal workpiece and diffused into the surface of the metal workpiece, thereby changing the chemical composition and organization of the surface of the metal workpiece, thereby improving the surface hardness, wear resistance, fatigue performance and corrosion resistance of the metal workpiece.

[0003] At present, when a metal workpiece is nitrided, the metal workpiece is generally nitrided by a nitriding furnace. When a metal workpiece is nitrided by a nitriding furnace, the metal workpiece is generally placed on a fixture rack first, and then the fixture rack with the metal workpiece is placed in the nitriding furnace for nitriding. The existing fixture rack generally includes a rack body and a material tray, the material tray is installed on the rack body, and the metal workpiece is placed on the material tray.

[0004] There is an annular metal workpiece. When the annular metal workpiece is placed on a material tray, in order to improve the stability of the workpiece, the annular metal is generally placed on the material tray in a flat stacking manner. However, when the annular metal workpieces stacked flat on the material tray are nitrided, the contact surface between two adjacent annular metals is large, thereby affecting the nitriding effect of the annular metal workpiece. At the same time, in order to ensure the stability of the annular metal workpiece, the stacking height of the annular metal workpiece should not be too high. Therefore, the number of annular metals placed in the nitriding furnace for nitriding treatment in the same batch is small, resulting in low utilization of the internal space of the nitriding furnace. Utility Model Content

[0005] In order to increase the number of annular workpieces placed in the nitriding furnace in the same batch and improve the utilization rate of the internal space of the nitriding furnace, the present application provides a nitriding treatment tool for annular parts of new energy vehicles.

[0006] The present application provides a nitriding treatment tool for annular parts of new energy vehicles, which adopts the following technical solution:

[0007] A nitriding treatment tool for annular parts of new energy vehicles, comprising:

[0008] A ventilation base, wherein a plurality of ventilation holes for gas circulation are provided on the ventilation base;

[0009] A support frame, the support frame comprising a fixing portion mounted on the ventilation base and a placing portion mounted on the fixing portion through a connecting portion;

[0010] A plurality of piercing rods are provided, and each of the plurality of piercing rods is mounted on the placement portion, and the piercing rods are used to support and limit the annular workpiece;

[0011] When placing an annular workpiece, the placing part is installed on the fixing part, and a plurality of the piercing rods are fixedly installed on the placing part. Then, the fixing part is fixedly installed on the ventilation base, and the annular workpiece is sleeved on the piercing rods, and the annular workpiece is supported and limited by the piercing rods.

[0012] Optionally, the connecting portion includes a connecting plate installed on the fixing portion and a connecting hook installed on the placing portion, a limiting groove is provided on the connecting plate, and the connecting hook and the limiting groove are plug-fitted.

[0013] Optionally, a plurality of placement holes are provided on the placement portion, the piercing rod and the placement holes are plugged into and matched with each other, and fasteners for fastening the piercing rod are provided at the placement holes.

[0014] Optionally, the threading rod includes a support rod plug-fitted with the placement hole and limit members installed at both ends of the support rod, and the support rod is used to plug-fit with the annular workpiece.

[0015] Optionally, the top of the support rod is provided with an arc surface, and when the annular workpiece is sleeved on the support rod, the arc surface fits with the inner wall of the annular workpiece.

[0016] Optionally, a limiting hole is provided at the end of the support rod, and the limiting member is a limiting pin, and the limiting pin is plug-fitted into the limiting hole.

[0017] Optionally, the fixing portion includes a fixing horizontal plate installed on the ventilation base and a fixing vertical plate installed on the fixing horizontal plate, and the placing portion is installed on the fixing vertical plate.

[0018] Optionally, a connecting hole is provided at the end of the fixed horizontal plate, and a positioning hole is provided on the ventilation base, and the connecting hole and the positioning hole are connected by connecting bolts.

[0019] Optionally, two fixed upright plates are arranged in parallel, and a plurality of connecting parts are arranged, wherein the plurality of connecting parts are located between the two fixed upright plates, and the plurality of connecting parts are distributed along the vertical direction of the fixed upright plates.

[0020] In summary, the present application includes at least one of the following beneficial technical effects:

[0021] 1. When installing the tooling rack, place the ventilation base horizontally, and install the placement part on the fixed part through the connecting part. Then, fix the fixed part on the ventilation base, and install the threading rod on the placement part. When placing annular metal workpieces, several annular metal workpieces can be sleeved on the threading rod. The annular metal workpieces originally stacked flat on the material tray are sleeved on multiple threading rods, which increases the number of placed annular metal workpieces and further improves the internal space utilization of the nitriding furnace. At the same time, the contact area between two adjacent annular metal workpieces is reduced, and the nitriding effect of the annular metal workpiece sleeved on the threading rod is improved;

[0022] 2. After the annular metal workpiece is sleeved on the support rod, a limit pin is inserted into the limit hole on the support rod, and the annular metal workpiece sleeved on the support rod is limited by the limit pin, thereby reducing the possibility of the annular metal workpiece placed on the support rod falling when the support frame is carried;

[0023] 3. When connecting the support rod and the placement part, insert the support rod into the placement hole, preliminarily limit the support rod through the inner wall of the placement hole, and adjust the relative position of the support rod and the placement hole according to the number of annular metal workpieces to be placed, so as to adapt to the internal space shape of the nitriding furnace. When fixing the support rod in the placement hole, rotate the fastening bolt so that the end of the fastening bolt presses the support rod against the inner wall of the placement hole, thereby reducing the possibility of the support rod shaking inside the placement hole, thereby improving the working stability of the support rod and the convenience of fastening the support rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a front view of an embodiment of the present application showing an annular metal workpiece placed on a nitriding furnace tooling.

[0025] Figure 2 This is a top view of an embodiment of the present application showing an annular metal workpiece placed on a nitriding furnace tooling.

[0026] Description of reference numerals:

[0027] 1. Ventilation base; 11. Ventilation hole; 2. Support frame; 21. Fixing part; 211. Fixing horizontal plate; 2111. Connecting bolt; 212. Fixing vertical plate; 22. Placement part; 221. Placement hole; 222. Fastener; 23. Connecting part; 231. Connecting plate; 2311. Limiting groove; 232. Connecting hook; 3. Feeding rod; 31. Support rod; 32. Limiting piece; 4. Workpiece. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-Figure 2 This application is described in further detail.

[0029] The embodiment of the present application discloses a nitriding treatment tool for annular parts of new energy vehicles.

[0030] A nitriding treatment tool for annular parts of new energy vehicles includes a ventilation base 1, a support frame 2 and a piercing rod 3. The support frame 2 is fixedly mounted on the ventilation base 1, the piercing rod 3 is mounted on the support frame 2, and the piercing rod 3 is used for plugging and matching with an annular metal workpiece 4.

[0031] When it is necessary to place annular metal workpieces 4, the ventilation base 1 is placed horizontally, and according to the number of annular metal workpieces 4 that need to be placed, different numbers of support frames 2 are selected, the support frames 2 are fixedly installed on the ventilation base 1, and the threading rod 3 is installed on the support frame 2, and then, the annular metal workpiece 4 is sleeved on the threading rod 3, so as to increase the number of placed annular metal workpieces 4 and improve the space utilization rate of the internal space of the nitriding furnace. At the same time, the contact area between two adjacent annular metal workpieces 4 is reduced, thereby improving the nitriding effect on the annular metal workpiece 4.

[0032] The ventilation base 1 is in a plate shape. In order to facilitate gas circulation, a plurality of ventilation holes 11 are provided on the ventilation base 1, and each ventilation hole 11 is a through hole.

[0033] The support frame 2 includes a fixing portion 21, a placement portion 22 and a connecting portion 23. There are two fixing portions 21, the placement portion 22 is located between the two fixing portions 21, and the connecting portion 23 is located between the fixing portion 21 and the placement portion 22, and the connecting portion 23 is used to connect the fixing portion 21 and the placement portion 22.

[0034] The fixing part 21 includes a fixing horizontal plate 211 and a fixing vertical plate 212. The fixing horizontal plate 211 is horizontally placed on the top of the ventilation base 1. The tops of both ends of the fixing horizontal plate 211 are provided with connection holes, which are through holes. The ventilation base 1 is provided with positioning holes corresponding to the fixing horizontal plate 211, and connecting bolts 2111 are threadedly connected between the connecting holes and the corresponding positioning holes. The fixing horizontal plate 211 with the connection holes and the ventilation base 1 with the positioning holes are detachably fixedly connected by the connecting bolts 2111, so as to facilitate the installation of different numbers of support frames.

[0035] The fixed vertical plate 212 is located at the top of the fixed horizontal plate 211, and the fixed vertical plate 212 and the fixed horizontal plate 211 are perpendicular. The bottom of the fixed vertical plate 212 and the top of the fixed horizontal plate 211 are welded. In order to improve the stability between the fixed horizontal plate 211 and the fixed vertical plate 212, a plurality of reinforcing ribs are fixedly installed between the fixed horizontal plate 211 and the fixed vertical plate 212.

[0036] The placement portion 22 is a rectangular frame with a plurality of ventilation holes. The placement portion 22 is located between the two fixing portions 21 and is vertically arranged.

[0037] A plurality of connecting parts 23 are provided, and the plurality of connecting parts 23 are located between the placement part 22 and the two fixing parts 21. The plurality of connecting parts 23 are distributed along the vertical direction, and the connecting parts 23 include a connecting plate 231 and a connecting hook 232.

[0038] There are two fixed vertical plates 212, which are arranged in parallel. The connecting plate 231 is located between the two fixed vertical plates 212. Each connecting plate 231 is arranged horizontally, and the two ends of the connecting plate 231 are fixedly connected to the side of the two fixed vertical plates 212 that are close to each other. The two fixed vertical plates 212 further improve the working stability of the connecting plate 231.

[0039] A limiting groove 2311 is provided on each connecting plate 231, and the limiting groove 2311 is a through groove. The connecting hook 232 is fixedly installed on the side of the placement portion 22 close to the connecting plate 231, and the connecting hook 232 and the limiting groove 2311 are plugged into each other. The inner wall of the limiting groove 2311 limits the placement portion 22 through the connecting hook 232, thereby improving the convenience and stability of the placement of the placement portion 22.

[0040] The piercing rod 3 includes a supporting rod 31 and a limiting member 32 .

[0041] The placement portion 22 is provided with multiple groups of placement holes 221, which are distributed in the vertical direction, each group of placement holes 221 is distributed in the horizontal direction, and each placement hole 221 is a through hole. A plurality of support rods 31 are provided, and the plurality of support rods 31 correspond to the plurality of placement holes 221, and the support rods 31 and the corresponding placement holes 221 are plugged and matched. In order to improve the stability of the support rod 31 placed inside the placement hole 221, a fastener 222 for fastening the support rod 31 inside the placement hole 221 is also provided on the hole wall of the placement hole 221.

[0042] The support rod 31 and the annular metal workpiece 4 are plugged together. In order to increase the number of placed annular metal workpieces 4, two adjacent groups of placement holes 221 on the placement portion 22 are staggered.

[0043] When the annular metal workpiece 4 is placed on the support rod 31, in order to facilitate the ventilation of the inner wall of the annular metal workpiece 4, the support rod 31 is a square rod. At the same time, in order to reduce the possibility of the support rod 31 scratching the inner wall of the annular metal workpiece 4 during the process of placing the annular metal workpiece 4 on the support rod 31, the top and bottom of the support rod 31 are provided with arc surfaces, and the arc surface at the top of the support rod 31 is in conflict with the inner wall of the annular metal workpiece 4.

[0044] The fastener 222 is a fastening bolt, which is located at the top of the placement hole 221. The fastening bolt passes through the inner wall of the top of the placement hole 221. The fastening bolt and the hole wall of the placement hole 221 are threadedly connected. When the support rod 31 is inserted into the placement hole 221, the relative position of the support rod 31 and the placement hole 221 is adjusted according to the number of annular metal workpieces 4 placed, and then the fastening bolt is turned to press the support rod 31 to the bottom of the inner wall of the placement hole 221 through the bottom end of the fastening bolt, thereby improving the convenience and stability of installing the support rod 31 inside the placement hole 221.

[0045] In order to facilitate the limiting of the annular metal workpiece 4 placed on the support rod 31, limiting holes are provided at the tops of both ends of the support rod 31, and the limiting members 32 are located at the limiting holes. In the embodiment of the present application, the limiting members 32 are limiting pins, and the limiting pins and the limiting holes are plugged in and matched. The inner wall of the limiting hole limits the annular metal workpiece 4 placed on the support rod 31 through the limiting pins, thereby reducing the possibility of the annular metal workpiece 4 detaching from the support rod 31.

[0046] The implementation principle of a nitriding treatment tool for annular parts of new energy vehicles in an embodiment of the present application is as follows: the ventilation base 1 is placed horizontally, and different numbers of support frames 2 are selected according to the number of annular metal workpieces 4 placed as needed, and the placement part 22 is placed between the two fixed parts 21, and the connecting hook 232 installed on the placement part 22 is inserted into the limiting groove 2311 of the adjacent connecting plate 231, and then, the connecting hole on the fixed cross plate 211 and the positioning hole on the ventilation base 1 are made to correspond, and the connecting bolt 2111 connects the fixed cross plate 211 and the ventilation base 1 through the connecting hole and the positioning hole. When inserting the support rod 31 into the placement hole 221, adjust the relative position between the support rod 31 and the placement hole 221 according to the number of annular metal workpieces 4 placed on the support rod 31 as needed, and then rotate the fastening bolt to press the support rod 31 against the inner wall of the placement hole 221 through the bottom end of the fastening bolt. After the annular metal workpiece 4 is sleeved on the support rod 31, insert the limit pin into the limit hole, and limit the annular metal workpiece 4 placed on the support rod 31 through the limit pin, thereby reducing the possibility of the annular metal workpiece 4 detaching from the tooling frame.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A nitriding treatment tool for annular parts of new energy vehicles, characterized in that: include; A ventilation base (1), wherein the ventilation base (1) is provided with a plurality of ventilation holes (11) for gas circulation; A support frame (2), the support frame (2) comprising a fixing portion (21) mounted on the ventilation base (1) and a placement portion (22) mounted on the fixing portion (21) via a connecting portion (23); A plurality of piercing rods (3), each of which is mounted on the placement portion (22). The piercing rods (3) are used to support and limit the position of the annular workpiece (4); When placing an annular workpiece (4), the placing portion (22) is mounted on the fixing portion (21), and a plurality of the piercing rods (3) are fixedly mounted on the placing portion (22); then, the fixing portion (21) is fixedly mounted on the ventilation base (1), and the annular workpiece (4) is sleeved on the piercing rods (3), and the annular workpiece (4) is supported and limited by the piercing rods (3).

2. A nitriding treatment tool for annular parts of new energy vehicles according to claim 1, characterized in that: The connecting portion (23) comprises a connecting plate (231) mounted on the fixing portion (21) and a connecting hook (232) mounted on the placing portion (22); a limiting groove (2311) is provided on the connecting plate (231); and the connecting hook (232) and the limiting groove (2311) are plug-fitted.

3. The nitriding treatment tool for annular parts of new energy vehicles according to claim 1, characterized in that: The placement portion (22) is provided with a plurality of placement holes (221), the piercing rod (3) and the placement holes (221) are plugged into and matched with each other, and the placement holes (221) are provided with fasteners (222) for fastening the piercing rod (3).

4. A nitriding treatment tool for annular parts of new energy vehicles according to claim 3, characterized in that: The piercing rod (3) comprises a support rod (31) plug-fitted with the placement hole (221) and stoppers (32) mounted on both ends of the support rod (31); the support rod (31) is used for plug-fitting with the annular workpiece (4).

5. The nitriding treatment tool for annular parts of new energy vehicles according to claim 4, characterized in that: The top of the support rod (31) is provided with an arc surface, and when the annular workpiece (4) is sleeved on the support rod (31), the arc surface and the inner wall of the annular workpiece (4) are in contact with each other.

6. The nitriding treatment tool for annular parts of new energy vehicles according to claim 4, characterized in that: A limiting hole is provided at the end of the support rod (31); the limiting member (32) is a limiting pin; the limiting pin and the limiting hole are plug-fitted.

7. The nitriding treatment tool for annular parts of new energy vehicles according to claim 1, characterized in that: The fixed portion (21) comprises a fixed transverse plate (211) mounted on the ventilation base (1) and a fixed vertical plate (212) mounted on the fixed transverse plate (211), and the placement portion (22) is mounted on the fixed vertical plate (212).

8. The nitriding treatment tool for annular parts of new energy vehicles according to claim 7, characterized in that: A connecting hole is provided at the end of the fixed transverse plate (211), a positioning hole is provided on the ventilation base (1), and the connecting hole and the positioning hole are connected via a connecting bolt (2111).

9. The nitriding treatment tool for annular parts of new energy vehicles according to claim 7, characterized in that: Two fixed vertical plates (212) are arranged in parallel, and a plurality of connecting parts (23) are arranged. The plurality of connecting parts (23) are located between the two fixed vertical plates (212), and the plurality of connecting parts (23) are distributed along the vertical direction of the fixed vertical plates (212).

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