Roll finish tool for rolling finish machining of metal workpiece

Abstract

The utility model discloses a tumbling cutter for rolling finish machining of a metal workpiece. The rolling head comprises a ball, the outer surface of the ball is movably connected with a rolling head base, the upper surface of the ball is provided with a ball holder, the upper surface of the ball holder is movably connected with a spring, the upper surface of the spring is fixedly connected with a piston, a cooling liquid spray hole is formed in the rolling head base, and the upper surface of the rolling head base is fixedly connected with a cutter handle. A hydraulic cavity is formed in the cutter handle, and a hydraulic oil inlet is formed in the left surface of the cutter handle. By means of the structure, when a workpiece is rolled, main pressure is provided through the hydraulic component, the response time is short, auxiliary pressure is provided through the spring component, instantaneous fluctuation is compensated, the system stability is improved, meanwhile, the rolling head base is surrounded by the cooling liquid spraying holes, and friction heat and waste adhesion can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of rolling device technology, and in particular to a rolling cutter for finishing metal workpieces by rolling. Background Technology

[0002] Currently available burnishing tools for finishing metal workpieces do not have cooling components for the rolling balls, which can easily cause overheating damage to the workpiece due to temperature rise during the burnishing process. For example, Chinese patent 202421275144.3 discloses a burnishing tool for finishing metal workpieces. However, this device does not have a cooling device for the carbide balls inside the steel ball holes when burning the workpiece, which can easily affect the workpiece due to temperature rise during the burnishing process. Summary of the Invention

[0003] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a burnishing tool for rolling finish metal workpieces. When rolling the workpiece, the hydraulic component provides the main pressure with a fast response time, and the spring component provides the auxiliary pressure to compensate for instantaneous fluctuations and improve system stability. At the same time, the coolant spray holes surround the base of the rolling head, which can reduce frictional heat and waste material adhesion.

[0004] This utility model also provides a burnishing tool for finishing metal workpieces by roll forming, comprising: a ball bearing movably connected to a burnishing head base on its outer surface, with a ball retainer on its upper surface; a coolant spray nozzle surrounding the inner surface of the burnishing head base, with a coolant inlet on the left surface of the burnishing head base; and a tool holder with a hydraulic oil inlet on its left surface, containing a hydraulic chamber and a piston, with a spring fixedly connected to the lower surface of the piston. Through these components, during workpiece burnishing, the hydraulic components provide the primary pressure with a fast response time, while the spring components provide auxiliary pressure to compensate for instantaneous fluctuations and improve system stability. Simultaneously, the coolant spray nozzle surrounding the burnishing head base reduces frictional heat and waste material adhesion.

[0005] According to the present invention, a burnishing tool for finishing metal workpieces by roll forming includes a ball bearing mounted within the base of the burnishing head. These components provide support, reduce friction, improve machining accuracy and quality, limit radial and axial displacement of the ball bearings during operation, and absorb vibration and impact.

[0006] According to the burnishing tool for finishing metal workpieces provided by this utility model, the axis of the coolant spray hole is inclined at 15°-30° with the tangential direction of the ball bearing. This component ensures that the coolant accurately covers the ball bearing.

[0007] According to the present invention, a burnishing tool for finishing metal workpieces by roll forming includes an annular coolant channel within the base of the burnishing head. This component allows coolant to be evenly sprayed from the annular coolant channel onto the surface of the rolling balls.

[0008] According to the present invention, a burnishing tool for finishing metal workpieces by roll forming includes a burnishing head base and a tool holder fixed by flange bolts. These components allow for connection between the burnishing head base and the tool holder, and facilitate the replacement of the burnishing head and its internal components.

[0009] According to the burnishing tool for finishing metal workpieces provided by this utility model, the hydraulic chamber is provided with a hydraulic oil pipe. Hydraulic oil can be introduced into the hydraulic chamber through these components.

[0010] According to the present invention, a burnishing tool for finishing metal workpieces by roll forming includes a filter screen at the inlet of the coolant spray nozzle. These components prevent impurities from clogging the workpiece.

[0011] According to the present invention, a burnishing tool for finishing metal workpieces by roll forming includes a fluororubber O-ring between the hydraulic oil inlet and the tool holder. These components prevent hydraulic oil leakage and maintain system pressure stability.

[0012] Compared with existing technologies, this burnishing tool for finishing metal workpieces uses hydraulic components to provide the main pressure during burnishing, resulting in a faster response time. Spring components provide auxiliary pressure to compensate for instantaneous fluctuations and improve system stability. Meanwhile, coolant spray holes surround the burnishing head base, which can reduce frictional heat and waste adhesion. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0014] Figure 1 This is an overall structural diagram of the burnishing tool for finishing metal workpieces using the present invention;

[0015] Figure 2 This is a diagram showing the internal structure of the burnishing tool for finishing metal workpieces using the present invention.

[0016] Figure 3 This is a side view of the internal structure of the burnishing tool of this utility model used for rolling and finishing metal workpieces.

[0017] Legend:

[0018] 1. Ball bearing; 2. Roller head base; 3. Ball bearing cage; 4. Coolant spray nozzle; 5. Coolant inlet; 6. Tool holder; 7. Hydraulic oil inlet; 8. Hydraulic chamber; 9. Piston; 10. Spring; 11. Precision bearing; 12. Annular coolant pipe; 13. Hydraulic oil pipe. Detailed Implementation

[0019] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0020] Reference Figure 1 , Figure 2 , Figure 3 This utility model embodiment provides a burnishing tool for rolling and finishing metal workpieces, comprising: a ball 1 movably connected to a burnishing head base 2 on its outer surface; the ball 1 is installed in the burnishing head base 2 through a precision bearing 11; the burnishing head base 2 is fixed to the tool holder 6 by flange bolts; and a ball retainer 3 is provided on the upper surface of the ball 1.

[0021] Specifically, based on the material, shape, size, and processing requirements of the metal workpiece, a suitable rolling head base 2 is selected, and the rolling head base 2 is fixed to the tool holder 6 with flange bolts. Then, the rolling cutter is fixedly installed on the spindle of the machine tool through the tool holder 6, maintaining the correct relative positional relationship with the machine tool spindle.

[0022] Reference Figure 1 , Figure 2 , Figure 3 Coolant spray holes 4 surround the inner surface of the roller head base 2. A filter screen is provided at the inlet of the coolant spray holes 4. The axis of the coolant spray holes 4 is inclined at an angle of 15°-30° with the tangent direction of the ball 1. An annular coolant pipe 12 is provided inside the roller head base 2. A coolant inlet 5 is provided on the left surface of the roller head base 2.

[0023] Specifically, during the burnishing process, when the burning temperature exceeds a certain limit, coolant enters the annular coolant pipe 12 from the coolant inlet 5, and then is evenly sprayed onto the surface of the ball bearing 1 through the coolant spray hole 4, which provides cooling, lubrication and rust prevention for the ball bearing 1.

[0024] Reference Figure 1 , Figure 2 , Figure 3 The left surface of the handle 6 is provided with a hydraulic oil inlet 7, and a fluororubber O-ring is provided between the hydraulic oil inlet 7 and the handle 6. The handle 6 is provided with a hydraulic chamber 8, and a hydraulic oil pipe 13 is provided in the hydraulic chamber 8. A piston 9 is provided in the hydraulic chamber 8, and a spring 10 is fixedly connected to the lower surface of the piston 9.

[0025] Specifically, after the machine tool is started, the hydraulic oil is pressurized and delivered from the hydraulic oil inlet 7 to the hydraulic chamber 8. The piston 9 in the hydraulic chamber 8 is displaced under the action of the hydraulic oil pressure, pushing the spring 10. The spring 10 pushes the pressure to the ball 1, so that the ball 1 contacts the workpiece surface with the set pressure, and performs burnishing on the workpiece.

[0026] Working principle: Based on the material, shape, size, and processing requirements of the metal workpiece, a suitable rolling head base 2 is selected. The rolling head base 2 is fixed to the tool holder 6 with flange bolts. Then, the rolling cutter is fixedly installed on the spindle of the machine tool through the tool holder 6, maintaining the correct relative position with the machine tool spindle. After the machine tool is started, the hydraulic oil is pressurized and delivered from the hydraulic oil inlet 7 to the hydraulic chamber 8. The piston 9 in the hydraulic chamber 8 is displaced under the action of hydraulic oil pressure, pushing the spring 10. The spring 10 pushes the pressure to the ball 1, so that the ball 1 contacts the workpiece surface with the set pressure to perform rolling processing on the workpiece. During the rolling process, when the rolling temperature exceeds a certain limit, the coolant enters the annular coolant pipe 12 from the coolant inlet 5, and then is evenly sprayed onto the surface of the ball 1 through the coolant spray hole 4, which plays a role in cooling, lubricating, and preventing rust on the ball 1.

[0027] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model 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 the present utility model.

Claims

1. A burnishing tool for finishing metal workpieces by roll forming, characterized in that, include: A ball (1) is movably connected to a rolling head base (2) on its outer surface, and a ball retainer (3) is provided on the upper surface of the ball (1). Coolant spray hole (4), the coolant spray hole (4) surrounds the inner surface of the roller head base (2), and the left surface of the roller head base (2) is provided with coolant inlet (5); The tool holder (6) has a hydraulic oil inlet (7) on its left surface, a hydraulic chamber (8) inside the tool holder (6), a piston (9) inside the hydraulic chamber (8), and a spring (10) fixedly connected to the lower surface of the piston (9).

2. A burnishing tool for finishing metal workpieces by roll forming according to claim 1, characterized in that, The ball (1) is mounted in the roller head base (2) via a precision bearing (11).

3. A burnishing tool for finishing metal workpieces by roll forming according to claim 1, characterized in that, The axis of the coolant spray hole (4) is inclined at an angle of 15°-30° to the tangential direction of the ball (1).

4. A burnishing tool for finishing metal workpieces by roll rolling according to claim 1, characterized in that, The rolling head base (2) is provided with an annular coolant pipe (12).

5. A burnishing tool for finishing metal workpieces by roll forming according to claim 1, characterized in that, The rolling head base (2) and the tool holder (6) are fixed by flange bolts.

6. A burnishing tool for finishing metal workpieces by roll forming according to claim 1, characterized in that, The hydraulic chamber (8) is equipped with a hydraulic oil pipeline (13).

7. A burnishing tool for finishing metal workpieces by roll forming according to claim 1, characterized in that, A filter screen is provided at the inlet of the coolant spray hole (4).

8. A burnishing tool for finishing metal workpieces by roll rolling according to claim 1, characterized in that, A fluororubber O-ring is provided between the hydraulic oil inlet (7) and the tool holder (6).

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