A machining center main shaft disc spring dismounting tool

Abstract

The utility model relates to the field of automobile manufacturing, concretely relates to a machining center main shaft disc spring dismounting frock. The device includes bottom support, top support and screw rod, the top support is provided with the center hole, and the center hole is chamfered, and the bottom support is provided with the center positioning hole corresponding with the top support, and the center positioning hole is half opening, the top support is provided with three penetrating positioning holes, the bottom support is provided with three half opening slot positioning holes, and the positioning hole position of bottom support and top support corresponds, the screw rod is provided with three, and is matched with the positioning hole of bottom support and top support respectively, the middle part of top support is provided with the center hole size and the main shaft disc spring rod rod diameter match. The utility model is simple to make, convenient, fast, safe to use, shortens the main shaft disc spring installation time, improves equipment maintenance efficiency, alleviates maintenance labor intensity, avoids the problem such as personnel injury, equipment damage caused by the poor spring force control in the installation process.

Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing, specifically to a tooling for disassembling and assembling disc springs on a machining center spindle. Background Technology

[0002] Flexible production lines for engine machining require the extensive use of CNC machining centers. Jiangling Motors Co., Ltd.'s engine plant has introduced advanced CNC machining centers from Germany's GROB and Heckert, among other foreign companies, to achieve flexible production lines. However, after a certain number of years of use, the spindle broaching force will decrease, leading to machine tool failure. The spindle broaching device is a crucial component for clamping the cutting tool on the CNC machine tool spindle. The magnitude of the broaching force determines the safety of the machining center. The disc springs in the broaching device are consumable parts and need to be replaced promptly if they wear out, fail due to fatigue, or break.

[0003] When repair personnel disassemble and assemble the spindle disc spring, they rely entirely on their manual skills to control the spring force. This requires a great deal of force to overcome the spring's elasticity and poses a safety risk. Utility Model Content

[0004] This utility model provides a special tooling for disassembling and assembling spindle disc springs in machining centers. It primarily addresses the spring force that needs to be overcome during spindle disc spring installation. The spindle pulley device requiring disc spring installation is placed inside the base of the special tooling. The disc springs are then installed in layers into the pulley rod, and a top fixing device locks the disc springs in place, preventing excessive spring force from causing them to pop out and resulting in personal injury or death. The specific technical solution is as follows:

[0005] A machining center spindle disc spring assembly / disassembly fixture includes a bottom support, a top support, and screws. The bottom and top supports are equilateral triangular in shape, with the circumcircle of the triangle matching the spindle. The top support has a chamfered center hole, and the bottom support has a corresponding semi-open center positioning hole. The top support has three through positioning holes, and the bottom support has three semi-open positioning holes, with the positioning holes on the bottom and top supports corresponding to each other. Three screws are provided, each matching one of the positioning holes on the bottom and top supports. The center hole in the middle of the top support has a size matching the diameter of the spindle disc spring rod.

[0006] Furthermore, it also includes three nuts, which are threaded to match the screw.

[0007] Furthermore, the positioning hole of the top support is a smooth through hole or a threaded through hole.

[0008] Furthermore, the central hole of the top support is chamfered, with the upper side smaller and the lower side larger.

[0009] This invention relates to the following method: When installing the spindle disc spring, insert the disc spring rod into the center positioning hole of the bottom support. The three screws are also positioned on the bottom support. Install the disc springs sequentially from bottom to top. When installed to a certain height, press the disc springs down through the nut from the top support, thus preventing injury due to excessive spring force and reducing labor intensity. When disassembling the spindle disc spring, slowly loosen the disc spring using the nut to overcome its elastic deformation, preventing injury due to excessive elastic deformation and reducing labor intensity. After the disc spring is installed, remove the tooling of this invention and insert the disc spring as a whole into the spindle.

[0010] This invention is simple to manufacture, convenient, quick, and safe to use. It shortens the installation time of the spindle disc spring, improves equipment maintenance efficiency, reduces maintenance labor intensity, and avoids problems such as personal injury and equipment damage caused by poor spring force control during installation. Attached Figure Description

[0011] Figure 1 A schematic diagram of the structure of this utility model;

[0012] Figure 2 Top view of the top support of this utility model;

[0013] Figure 3 Side view of the top support of this utility model;

[0014] Figure 4 Top view of the bottom support of this utility model;

[0015] Figure 5 A schematic diagram of the disc spring mounted on the spindle.

[0016] Figure label:

[0017] 1-Top support, 2-Bottom support, 3-Screw, 4-Nut, 5-Disc spring, 6-Disc spring rod, 11-Top support positioning hole, 12-Center hole, 21-Bottom support positioning hole. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figure 1-3As shown, a machining center spindle disc spring assembly / disassembly fixture includes a bottom support 2, a top support 1, and screws 3. The bottom support 2 and the top support 1 are configured as equilateral triangles, with the circumcircle of the triangle matching the spindle. The top support 1 has a center hole 12 with a chamfer, and the bottom support 2 has a center positioning hole corresponding to the top support, which is a semi-open hole. The top support 1 has three through positioning holes 11, and the bottom support has three semi-grooved positioning holes 21. The positioning holes on the bottom support 2 and the top support 1 are positioned correspondingly. Three screws 3 are provided, each matching the positioning holes of the bottom support and the top support. The size of the center hole 12 in the middle of the top support 1 matches the diameter of the spindle disc spring rod 6.

[0020] Furthermore, it also includes three nuts 4, which are threaded to match the screw 3.

[0021] Furthermore, the positioning hole 12 of the top support 1 is a smooth through hole or a threaded through hole.

[0022] Furthermore, the center hole of the top support 1 is chamfered, with the upper side smaller and the lower side larger.

[0023] When installing the spindle disc spring, insert the disc spring rod 6 into the center positioning hole of the bottom support 2. The three screws 3 are also positioned on the bottom support. Install the disc springs 5 ​​sequentially from bottom to top. When installed to a certain height, press down on the disc spring 5 via the nut 4 from the top support 1 to prevent injury due to excessive elasticity and reduce labor intensity. When disassembling the spindle disc spring, slowly loosen the disc spring 5 using the nut 4 to overcome its elastic deformation, avoiding injury due to excessive elastic deformation and reducing labor intensity. After the disc spring is installed, remove the tooling of this utility model and insert the disc spring as a whole into the spindle. Figure 5 As shown.

[0024] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A machining center spindle disc spring dismounting and mounting tool, characterized in that: The system includes a bottom support, a top support, and screws. The bottom and top supports are equilateral triangular in shape, with the circumcircle of the triangle matching the spindle. The top support has a chamfered center hole, and the bottom support has a corresponding center positioning hole, which is a semi-open hole. The top support has three through positioning holes, and the bottom support has three semi-grooved positioning holes. The positioning holes on the bottom and top supports are positioned correspondingly. Three screws are provided, each matching one of the positioning holes on the bottom and top supports. The center hole in the middle of the top support has a size matching the diameter of the spindle disc spring rod.

2. The machining center spindle disc spring disassembly and assembly fixture according to claim 1, characterized in that: It also includes three nuts, which are threaded to match the screw.

3. The machining center spindle disc spring disassembly and assembly fixture according to claim 1, characterized in that: The positioning hole of the top support is a smooth through hole or a threaded through hole.

4. The machining center spindle disc spring disassembly and assembly fixture according to claim 1, characterized in that: The center hole of the top support is chamfered, with the upper side smaller and the lower side larger.

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