Multi-tool-bit rolling tool

Abstract

The utility model belongs to the technical field of metal material surface strengthening, and particularly relates to a multi-tool-bit rolling tool. The rolling tool comprises a tool handle, moving mechanisms, sensor modules and a machining tool bit, and is specifically structurally characterized in that the top of the tool handle is fixed to a machine tool spindle, the bottom of the tool handle is connected with the two or more moving mechanisms through linear guide rails, and the bottom of each linear guide rail corresponds to and is connected with an installation base of the corresponding sensor module through two or more sliding blocks; and the bottoms of the mounting seats are in one-to-one correspondence and are connected with the machining tool bits. When the rolling device is used for rolling, the buckling deformation of plate parts is reduced, the grain structure on the surface layer of the material is refined to nanoscale, and the performance of the parts is obviously improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of metal material surface strengthening, and in particular relates to a multi-blade rolling tool. Background Art

[0002] Plate parts are one of the important parts in the machinery manufacturing industry. They are often used in automobiles, ships, mechanical equipment, electronic devices and other fields. The requirements for material surface performance in the service environment are getting higher and higher. At present, rolling strengthening technology can be used to produce plastic deformation on the surface of plate parts, reduce the surface roughness of the material, increase the surface hardness of the material, and produce a certain residual compressive stress layer. However, the grain refinement of the parts is not significant. If the grain size of the parts is further reduced, the rolling process needs to apply greater strain, resulting in uneven surface structure of the parts. The use of existing rolling tools to reduce the surface grain size of the parts is inhibited. Utility Model Content

[0003] The purpose of the utility model is to provide a multi-head rolling tool, which reduces the warping deformation of parts by arranging multiple processing heads under the tool handle to perform rolling processing synchronously, obtains a large strain on the surface of the material, and refines the surface grain structure of plate parts to the nanometer scale.

[0004] In order to achieve the above purpose, the present invention proposes the following technical solutions:

[0005] A multi-head rolling tool, which includes a tool holder, a moving mechanism, a sensor module, and a processing tool head. The specific structure is as follows: the top of the tool holder is fixed to the machine tool spindle, the bottom of the tool holder is connected to two or more moving mechanisms through linear guide rails, the bottom of each linear guide rail is connected to the mounting seat of the sensor module through two or more sliders, and the bottom of each mounting seat is connected to the processing tool head one by one.

[0006] The multi-head rolling tool is characterized in that the position of the processing head is adjusted by a moving mechanism. The moving mechanism is composed of a linear guide rail and a slider. Two or more mutually parallel linear guide rails are installed at the lower end of the tool handle. Each linear guide rail is provided with two or more sliders, and the sliders are in sliding cooperation with the corresponding linear guide rails.

[0007] The multi-blade rolling tool has a slider that moves freely on the linear guide rail and is fixed to the linear guide rail by screws.

[0008] The multi-head rolling tool, the sensor module for monitoring the rolling load includes a mounting seat and a pressure sensor, each mounting seat is connected to the slider by a screw, the mounting seat is a groove-shaped structure, a through hole is provided in the bottom center of the mounting seat, the pressure sensor is embedded in the groove of the mounting seat, the upper end face of the pressure sensor contacts the lower end face of the slider, the bottom through hole of the mounting seat is connected to the processing head, and the lower end face of the pressure sensor contacts the upper end face of the processing head.

[0009] The multi-head rolling tool has a pressure sensor located between the slider and the machining head and is connected to an external data acquisition device.

[0010] In the multi-tool rolling tool, when four machining tool heads are arranged below the tool handle, the connecting lines between the machining tool heads form a quadrilateral.

[0011] The design idea of ​​this utility model is:

[0012] The utility model adjusts the position of the processing tool head through a moving mechanism to realize multi-tool rolling processing of plate parts of different sizes, reduces the warping deformation of the parts, obtains a large strain on the surface of the material, and ultimately refines the surface grain structure of the parts to the nanometer scale; by arranging a pressure sensor between the tool handle and the processing tool head, the rolling load is monitored in real time, and the controllable preparation of the gradient nanostructure on the surface of the plate parts is completed.

[0013] The advantages and beneficial effects of the utility model are:

[0014] 1. The rolling tool of the utility model is cleverly designed and easy to operate. A plurality of processing tool heads are arranged under the tool handle. The plate parts can be processed into a gradient structure layer by a single rolling process, which greatly improves the processing efficiency.

[0015] 2. The rolling tool of the present invention can adjust the rolling load according to the feedback signal of the pressure sensor, optimize the rolling processing parameters, and control the thickness of the gradient nanostructure layer of the part.

[0016] 3. The rolling tool of the present invention reduces the warping deformation of the parts, and the surface grain structure of the material is refined to the nanometer scale, forming a gradient structure transitioning from nano-grains to coarse-grained grains, which significantly improves the performance of the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1-Figure 2 This is a schematic diagram of the structure of the multi-head rolling tool of the utility model. Figure 1 For the main view, Figure 2 It is a side view.

[0018] In the figure: 1 - tool handle; 2 - moving mechanism, 201 - linear guide rail, 202 - slider; 3 - sensor module, 301 - mounting seat, 302 - pressure sensor; 4 - machining tool head. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below with reference to the accompanying drawings.

[0020] like Figure 1-Figure 2As shown, the utility model provides a multi-head rolling tool, including a tool handle 1, a moving mechanism 2, a sensor module 3, and a processing tool head 4. The specific structure is as follows:

[0021] The top of the tool handle 1 is fixed on the machine tool spindle, and the bottom of the tool handle 1 is connected to two or more moving mechanisms 2 through linear guide rails 201. The bottom of each linear guide rail 201 is respectively connected to the mounting seat 301 of the sensor module 3 through two or more sliders 202. The bottom of each mounting seat 301 is respectively connected to the processing head 4. Four processing heads 4 are arranged under the tool handle 1, and the connecting lines between the processing heads 4 form a quadrilateral.

[0022] The machining head 4 is position-adjusted by a moving mechanism 2. The moving mechanism 2 is composed of a linear guide rail 201 and a slider 202. Two mutually parallel linear guide rails 201 are mounted on the lower end of the tool handle 1. Two sliders 202 are arranged on each linear guide rail 201. The sliders 202 are in sliding cooperation with the corresponding linear guide rails 201. The sliders 202 can move freely on the linear guide rails 201 and are fixed to the linear guide rails 201 by screws. The sensor module 3 for monitoring the rolling load includes a mounting seat 301 and a pressure sensor 302. A mounting seat 301 is connected to the slider 202 by screws. The mounting seat 301 is a groove-shaped structure. A through hole is provided at the bottom center of the mounting seat 301. The pressure sensor 302 is embedded in the groove of the mounting seat 301. The upper end face of the pressure sensor 302 contacts the lower end face of the slider 202. The bottom through hole of the mounting seat 301 is connected to the processing head 4. The lower end face of the pressure sensor 302 contacts the upper end face of the processing head 4. The pressure sensor 302 is between the slider 202 and the processing head 4, and is connected to an external data acquisition device.

[0023] Of course, more than two linear guide rails and more than four slide blocks can also be installed at the lower end of the tool handle 1.

[0024] like Figure 1-Figure 2 As shown, the specific processing process of the utility model is as follows:

[0025] The multi-head rolling tool of the present invention is clamped on a CNC machine tool, and a gradient nanostructure is prepared on the surface of a plate-like part using rolling strengthening technology. For example, a milling machine is selected for testing. First, the plate-like part is fixed on the milling machine workbench. The top of the tool handle 1 is connected to the milling machine spindle. The position of the slider 202 on the linear guide 201 is adjusted and fixed with screws. The four processing heads 4 form a quadrilateral. The external data acquisition device is turned on and the plate-like part is rolled. The processing heads 4 are controlled to press into the surface of the plate-like part. The processing heads 4 roll in a linear direction or rotate in a circular direction. At the same time, they translate perpendicular to the rolling direction in the plate-like part processing area. The rolling load is monitored by the data acquisition device, and the rolling process parameters are optimized. Finally, a gradient nanostructure is obtained on the surface of the plate-like part.

[0026] The implementation results show that the use of the above-mentioned tools for rolling processing reduces the warping deformation of plate parts, refines the surface grain structure of the material to the nanoscale, and significantly improves the performance of the parts.

Claims

1. A multi-blade rolling tool, characterized in that: The rolling tool includes a tool holder, a moving mechanism, a sensor module, and a processing tool head. The specific structure is as follows: the top of the tool holder is fixed on the machine tool spindle, the bottom of the tool holder is connected to more than two moving mechanisms through linear guides, the bottom of each linear guide is respectively corresponding to and connected to the mounting seat of the sensor module through more than two sliders, and the bottom of each mounting seat is respectively corresponding to and connected to the processing tool head.

2. The multi-blade rolling tool according to claim 1, characterized in that: The processing tool head is positionally adjusted through a moving mechanism, which is composed of a linear guide and a slider. Two or more mutually parallel linear guides are installed at the lower end of the tool handle, and each linear guide is provided with two or more sliders, which are in sliding cooperation with the corresponding linear guide.

3. The multi-blade rolling tool according to claim 2, characterized in that: The slider moves freely on the linear guide and is fixed to the linear guide by screws.

4. The multi-blade rolling tool according to any one of claims 1 to 3, characterized in that: The sensor module for monitoring rolling load includes a mounting seat and a pressure sensor. Each mounting seat is connected to a slider by a screw. The mounting seat is a groove-shaped structure. A through hole is provided at the bottom center of the mounting seat. The pressure sensor is embedded in the groove of the mounting seat. The upper end face of the pressure sensor contacts the lower end face of the slider. The bottom through hole of the mounting seat is connected to a processing tool head, and the lower end face of the pressure sensor contacts the upper end face of the processing tool head.

5. The multi-blade rolling tool according to claim 4, characterized in that: The pressure sensor is located between the slide block and the machining tool head and is connected to an external data acquisition device.

6. The multi-blade rolling tool according to claim 1, characterized in that: When four machining tool heads are arranged below the tool handle, the connecting lines between the machining tool heads form a quadrilateral.

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