A PDC end face and chamfering grinding machine and processing method

Abstract

The present invention discloses a PDC end face and chamfering grinder and a processing method, and relates to the technical field of grinding machines. The PDC end face and chamfering grinder comprises a machine tool and a first guide rail and a second guide rail arranged on the machine tool. The first guide rail and the second guide rail are arranged vertically. A first clamping mechanism is slidably arranged on the first guide rail. The first clamping mechanism is used to clamp a grinding wheel or a workpiece and drive the grinding wheel or the workpiece to move. A second clamping mechanism is slidably arranged on the second guide rail. The second clamping mechanism comprises a first rotating drive assembly and a second rotating drive assembly. The first rotating drive assembly is slidably arranged on the second guide rail. The second rotating drive assembly is arranged on the power output end of the first rotating drive assembly. The first rotating drive assembly can drive the second rotating drive assembly to rotate. The workpiece or the grinding wheel is located at the power output end of the second rotating drive assembly. The second rotating drive assembly can drive the workpiece or the grinding wheel to rotate. The present invention can realize the processing of end faces and chamfering by a machine tool.

Description

Technical Field

[0001] The invention relates to the technical field of grinding machines, in particular to a PDC end face and chamfering grinding machine and a processing method. Background Art

[0002] The drilling efficiency and service life of drill bits for oil exploration and drilling with polycrystalline diamond composites are closely related to the geometric shape of PDC (Polycrystalline Diamond Compact). The types of end faces and chamfers widely used in the market include: linear chamfers, arc chamfers, arc chamfers with cones, cracking edges, foxtail teeth, etc. In the prior art, two machine tools are required to grind the PDC end faces and chamfers separately. Summary of the invention

[0003] The purpose of the present invention is to provide a PDC end face and chamfering grinding machine and processing method, which can realize the processing of end face and chamfering by one machine tool.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] The present invention provides a PDC end face and chamfering grinding machine, comprising: a machine tool and a first guide rail and a second guide rail arranged on the machine tool, the first guide rail and the second guide rail are arranged vertically, a first clamping mechanism is slidably arranged on the first guide rail, the first clamping mechanism is used to clamp a grinding wheel or a workpiece and drive the grinding wheel or the workpiece to move, a second clamping mechanism is slidably arranged on the second guide rail, the second clamping mechanism comprises a first rotation drive assembly and a second rotation drive assembly, the first rotation drive assembly is slidably arranged on the second guide rail, the second rotation drive assembly is arranged on the power output end of the first rotation drive assembly, the first rotation drive assembly can drive the second rotation drive assembly to rotate, the workpiece or the grinding wheel is located at the power output end of the second rotation drive assembly, and the second rotation drive assembly can drive the workpiece or the grinding wheel to rotate.

[0006] Preferably, the first clamping mechanism includes a rotary drive motor and a drive chuck, the rotary drive motor is slidably arranged on the first guide rail, the power output end of the rotary drive motor is used to connect with the drive chuck, the drive chuck is used to clamp the grinding wheel or the workpiece, and the rotary drive motor is used to drive the grinding wheel or the workpiece to rotate.

[0007] Preferably, the rotation axis of the workpiece or the grinding wheel at the power output end of the first clamping mechanism is arranged perpendicular to the first guide rail.

[0008] Preferably, the rotation axis of the workpiece or grinding wheel driven by the power output end of the first rotation drive component is respectively arranged perpendicular to the first guide rail, the second guide rail, the rotation axis of the grinding wheel or workpiece driven by the power output end of the first clamping mechanism, and the rotation axis of the workpiece or grinding wheel driven by the power output end of the second rotation drive component.

[0009] Preferably, the first rotation driving assembly includes a first motor, the first motor is slidably disposed on the second guide rail, and the second rotation driving assembly is disposed at a power output end of the first motor.

[0010] Preferably, the second rotation drive assembly includes a second motor and a swing chuck, the second motor is arranged at the power output end of the first rotation drive assembly, the power output end of the second motor is used to connect with the swing chuck, the swing chuck is used to clamp the workpiece or the grinding wheel, and the second motor is used to drive the workpiece or the grinding wheel to rotate.

[0011] Preferably, it further comprises a first driving structure and a second driving structure, wherein the first driving structure is used to drive the first clamping mechanism to slide along the first guide rail, and the second driving structure is used to drive the second clamping mechanism to slide along the second guide rail.

[0012] Preferably, the first drive structure and the second drive structure have the same structure, and both the first drive structure and the second drive structure include a sliding drive motor, a lead screw and a slider, the sliding drive motor drives the lead screw to rotate, the slider is threadedly connected to the lead screw, and the slider is used to set the first clamping mechanism or the second clamping mechanism.

[0013] The present invention also provides a processing method using the PDC end face and chamfering grinder, comprising:

[0014] Working condition 1: the first clamping mechanism is used to clamp the grinding wheel, and the second clamping mechanism is used to clamp the workpiece:

[0015] When the outer cylindrical surface of the grinding wheel is used to grind the workpiece, the first clamping mechanism drives the grinding wheel to rotate, and the first clamping mechanism moves along the first guide rail to achieve feeding, and the second clamping mechanism drives the workpiece to rotate, and the second clamping mechanism moves along the second guide rail to achieve grinding;

[0016] When the grinding wheel end face is used to grind the workpiece, the second clamping mechanism drives the workpiece to rotate, and the second clamping mechanism moves along the second guide rail to achieve feeding, and the first clamping mechanism drives the grinding wheel to rotate, and the first clamping mechanism moves along the first guide rail to achieve grinding.

[0017] Preferably, it also includes: working condition 2, the second clamping mechanism is used to clamp the grinding wheel, and the first clamping mechanism is used to clamp the workpiece:

[0018] When the outer cylindrical surface of the grinding wheel is used to grind the workpiece, the first clamping mechanism drives the workpiece to rotate, and the first clamping mechanism moves along the first guide rail to achieve feeding, and the second clamping mechanism drives the grinding wheel to rotate, and the second clamping mechanism moves along the second guide rail to achieve grinding;

[0019] When the grinding wheel end face is used to grind the workpiece, the second clamping mechanism drives the grinding wheel to rotate, and the second clamping mechanism moves along the second guide rail to achieve feeding, and the first clamping mechanism drives the workpiece to rotate, and the first clamping mechanism moves along the first guide rail to achieve grinding.

[0020] Compared with the prior art, the present invention has achieved the following technical effects:

[0021] The present invention sets a first clamping mechanism slidably on a first guide rail, sets a second clamping mechanism slidably on a second guide rail, clamps a grinding wheel or a workpiece by the first clamping mechanism, clamps the workpiece or the grinding wheel by the second clamping mechanism, adjusts the position and angle of the workpiece or the grinding wheel by the second clamping mechanism, cooperates with the first guide rail and the second guide rail, so that the workpiece can be ground through the outer cylindrical surface and the end face of the grinding wheel, that is, the grinding of the end face and the chamfer is completed by one machine tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 The isometric view of the PDC end face and chamfering grinding machine of the present invention (in the first and second embodiments, the outer cylindrical surface of the grinding wheel is used for grinding);

[0024] Figure 2 A top view of a PDC end face and chamfering grinding machine according to the present invention (in the first and second embodiments, the outer cylindrical surface of the grinding wheel is used for grinding);

[0025] Figure 3 It is a partial enlarged view of the PDC end face and chamfering grinding machine of the present invention (in the first and second embodiments, the outer cylindrical surface of the grinding wheel is used for grinding);

[0026] Figure 4 The isometric view of the PDC end face and chamfering grinding machine of the present invention (in the first and second embodiments, the end face of the grinding wheel is used for grinding);

[0027] Figure 5 A top view of the PDC end face and chamfering grinding machine of the present invention (in the first and second embodiments, the end face of the grinding wheel is used for grinding);

[0028] Figure 6 It is a partial enlarged view of the PDC end face and chamfering grinding machine of the present invention (in the first and second embodiments, the end face of the grinding wheel is used for grinding);

[0029] Figure 7 is a schematic diagram of a second clamping mechanism of the present invention;

[0030] In the figure: 100-PDC end face and chamfering grinder, 1-machine tool, 2-first guide rail, 3-second guide rail, 4-first clamping mechanism, 5-second clamping mechanism, 6-workpiece, 7-grinding wheel, 8-first rotation drive assembly, 9-second rotation drive assembly, 10-swinging chuck, 11-slider, 12-outer cylindrical surface, 13-end face, 14-first motor, 15-second motor. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] The purpose of the present invention is to provide a PDC end face and chamfering grinding machine and processing method, which can realize the processing of end face and chamfering by one machine tool.

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] Embodiment 1

[0035] like Figures 1 to 7 As shown, this embodiment provides a PDC end face and chamfering grinder 100, including: a machine tool 1 and a first guide rail 2 and a second guide rail 3 arranged on the machine tool 1, the first guide rail 2 and the second guide rail 3 are vertically arranged, a first clamping mechanism 4 is slidably arranged on the first guide rail 2, the first clamping mechanism 4 is used to clamp the grinding wheel 7 and drive the grinding wheel 7 to move, a second clamping mechanism 5 is slidably arranged on the second guide rail 3, the second clamping mechanism 5 includes a first rotation drive assembly 8 and a second rotation drive assembly 9, the first rotation drive assembly 8 is slidably arranged on the second guide rail 3, the second rotation drive assembly 9 is arranged on the power output end of the first rotation drive assembly 8, the first rotation drive assembly 8 can drive the second rotation drive assembly 9 to rotate, the workpiece 6 is located at the power output end of the second rotation drive assembly 9, and the second rotation drive assembly 9 can drive the workpiece 6 to rotate.

[0036] Specifically, in this embodiment, the first clamping mechanism 4 includes a rotating drive motor and a driving chuck. The rotating drive motor is slidably arranged on the first guide rail 2. The power output end of the rotating drive motor is used to connect with the driving chuck. The driving chuck is used to clamp the grinding wheel 7, and the rotating drive motor is used to drive the grinding wheel 7 to rotate.

[0037] In this embodiment, the rotation axis of the grinding wheel 7 at the power output end of the first clamping mechanism 4 is arranged perpendicular to the first guide rail 2 .

[0038] In this embodiment, the extending direction of the first guide rail 2 is the X-axis, and the extending direction of the second guide rail 3 is the Y-axis.

[0039] In this embodiment, the rotation axis of the workpiece 6 driven by the power output end of the first rotating drive component 8 is respectively arranged perpendicular to the rotation axis of the grinding wheel 7 driven by the power output end of the first guide rail 2, the second guide rail 3, and the first clamping mechanism 4, and the rotation axis of the workpiece 6 driven by the power output end of the second rotating drive component 9.

[0040] In this embodiment, the first rotation drive assembly 8 includes a first motor 14, the first motor 14 is slidably disposed on the second guide rail 3, and the second rotation drive assembly 9 is disposed at the power output end of the first motor 14. The first motor 14 can switch between outer cylindrical surface grinding and end surface grinding using the grinding wheel 7, and can also adjust the workpiece 6 according to a set angle during grinding.

[0041] In this embodiment, the second rotating drive assembly 9 includes a second motor 15 and a swing chuck 10. The second motor 15 is arranged at the power output end of the first rotating drive assembly 8. The power output end of the second motor 15 is used to connect with the swing chuck 10. The swing chuck 10 is used to clamp the workpiece 6, and the second motor 15 is used to drive the workpiece 6 to rotate. The swing chuck 10 adopts the pneumatic locking spring chuck in the prior art, which can realize axial positioning and pneumatic tightening, and provides an extended interface for automatic loading and unmanned production. The cylindrical surface and end face 13 of the workpiece 6 are used as the positioning reference, and the manipulator is used to automatically feed and lean against it, and the pneumatic device is used to tighten the rivet of the spring chuck tool handle to realize automatic clamping. The swing chuck 10 also adopts a cylinder pressurizing device, which greatly increases the firmness of the clamping, so that the machine tool can perform grinding with a large feed amount.

[0042] The present embodiment also includes a first driving structure and a second driving structure, the first driving structure is used to drive the first clamping mechanism 4 to slide along the first guide rail 2, and the second driving structure is used to drive the second clamping mechanism 5 to slide along the second guide rail 3; the first driving structure and the second driving structure have the same structure, and both the first driving structure and the second driving structure include a sliding driving motor, a lead screw and a slider 11, the sliding driving motor drives the lead screw to rotate, the slider 11 is threadedly connected to the lead screw, and the slider 11 is used to set the first clamping mechanism 4 or the second clamping mechanism 5. In the present embodiment, a controller can be used to control the first driving structure and the second driving structure to make the first clamping mechanism 4 and the second clamping mechanism 5 swing in a small line segment. During the swinging process, the swinging direction, the swinging speed and the acceleration thereof change sinusoidally and continuously, avoiding the impact and vibration caused by the change of the motion direction and speed, greatly improving the motion accuracy through the swinging of the small line segment, and greatly reducing the grinding of the lead screw, the first guide rail 2 and the second guide rail 3.

[0043] The PDC end face and chamfering grinder 100 of this embodiment is used to grind all shapes other than the outer circle on the workpiece 6 (PDC). This embodiment has high flexibility, and can be used to grind the outer cylindrical surface 12 of the grinding wheel 7 with more abrasive to maintain stable geometric dimensions and extend the processing cycle; it can also be used to grind the end face 13 of the grinding wheel 7 with a relatively high verticality to ensure the geometric accuracy of the workpiece 6.

[0044] In this embodiment, the first driving structure, the second driving structure, the second clamping mechanism 5 and the first clamping mechanism 4 can be controlled by a controller to achieve one-time clamping of the workpiece 6, and the outer cylindrical surface 12 and the end surface 13 of the grinding wheel 7 can be used for rough machining and fine machining in sequence, thereby taking into account both machining efficiency and machining accuracy and achieving good economic results.

[0045] Embodiment 2

[0046] This embodiment provides a processing method using the PDC end face and chamfering grinder 100 of the first embodiment, comprising:

[0047] Working condition 1, the first clamping mechanism 4 is used to clamp the grinding wheel 7, and the second clamping mechanism 5 is used to clamp the workpiece 6:

[0048] like Figures 1 to 3 As shown, when the outer cylindrical surface 12 of the grinding wheel 7 is used to grind the workpiece 6, the grinding wheel 7 adopts the 1A1 type grinding wheel, the first clamping mechanism 4 drives the grinding wheel 7 to rotate, the first clamping mechanism 4 moves along the first guide rail 2 to achieve feeding, the second clamping mechanism 5 drives the workpiece 6 to rotate, the second rotation drive assembly 9 drives the workpiece 6 to rotate along the A axis, the first rotation drive assembly 8 drives the workpiece 6 to rotate along the B axis, and the second clamping mechanism 5 swings along the second guide rail 3 to achieve uniform grinding;

[0049] like Figures 4 to 6As shown, when the end face 13 of the grinding wheel 7 is used to grind the workpiece 6, the grinding wheel 7 adopts the 6A2 type grinding wheel, the second clamping mechanism 5 drives the workpiece 6 to rotate, the second rotation drive component 9 drives the workpiece 6 to rotate along the A axis, the first rotation drive component 8 drives the workpiece 6 to rotate along the B axis, the second clamping mechanism 5 moves along the second guide rail 3 to achieve feeding, the first clamping mechanism 4 drives the grinding wheel 7 to rotate, and the first clamping mechanism 4 swings along the first guide rail 2 to achieve uniform grinding.

[0050] Embodiment 3

[0051] The difference between this embodiment and the first embodiment is that in this embodiment, the positions of the grinding wheel and the workpiece in the first embodiment are swapped, that is, the first clamping mechanism 4 is used to clamp the workpiece 6 and drive the workpiece 6 to move, and the second clamping mechanism 5 is used to clamp the grinding wheel 7 and drive the grinding wheel 7 to move.

[0052] In this embodiment, the driving chuck is used to clamp the workpiece 6, and the rotation driving motor is used to drive the workpiece 6 to rotate.

[0053] In this embodiment, the rotation axis of the workpiece 6 at the power output end of the first clamping mechanism 4 is arranged perpendicular to the first guide rail 2 .

[0054] In this embodiment, the grinding wheel 7 is located at the power output end of the second rotation driving assembly 9, and the second rotation driving assembly 9 can drive the grinding wheel 7 to rotate.

[0055] In this embodiment, the rotation axis of the grinding wheel 7 driven by the power output end of the first rotating drive component 8 is respectively arranged perpendicular to the rotation axis of the workpiece 6 driven by the power output end of the first guide rail 2, the second guide rail 3, and the first clamping mechanism 4, and the rotation axis of the grinding wheel 7 driven by the power output end of the second rotating drive component 9.

[0056] In this embodiment, the swing chuck 10 is used to clamp the grinding wheel 7, and the second motor 15 is used to drive the grinding wheel 7 to rotate.

[0057] Embodiment 4

[0058] This embodiment provides a processing method using the PDC end face and chamfering grinder 100 of the third embodiment, comprising:

[0059] Working condition 2, the second clamping mechanism 5 is used to clamp the grinding wheel 7, and the first clamping mechanism 4 is used to clamp the workpiece 6:

[0060] When the outer cylindrical surface 12 of the grinding wheel 7 is used to grind the workpiece 6, the grinding wheel 7 adopts a 1A1 type grinding wheel, the first clamping mechanism 4 drives the workpiece 6 to rotate, the first clamping mechanism 4 moves along the first guide rail 2 to achieve feeding, the second clamping mechanism 5 drives the grinding wheel 7 to rotate, the second rotation drive assembly 9 drives the grinding wheel 7 to rotate along the A axis, the first rotation drive assembly 8 drives the grinding wheel 7 to rotate along the B axis, and the second clamping mechanism 5 swings along the second guide rail 3 to achieve uniform grinding;

[0061] When the end face 13 of the grinding wheel 7 is used to grind the workpiece 6, the grinding wheel 7 adopts a 6A2 type grinding wheel, the second clamping mechanism 5 drives the grinding wheel 7 to rotate, the second rotation drive component 9 drives the grinding wheel 7 to rotate along the A axis, the first rotation drive component 8 drives the grinding wheel 7 to rotate along the B axis, the second clamping mechanism 5 moves along the second guide rail 3 to achieve feeding, the first clamping mechanism 4 drives the workpiece 6 to rotate, and the first clamping mechanism 4 swings along the first guide rail 2 to achieve uniform grinding.

[0062] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A processing method, characterized in that: A PDC end face and chamfering grinder is used, and the PDC end face and chamfering grinder comprises: a machine tool and a first guide rail and a second guide rail arranged on the machine tool, the first guide rail and the second guide rail are arranged vertically, a first clamping mechanism is slidably arranged on the first guide rail, the first clamping mechanism is used to clamp a grinding wheel or a workpiece and drive the grinding wheel or the workpiece to move, a second clamping mechanism is slidably arranged on the second guide rail, the second clamping mechanism comprises a first rotation drive assembly and a second rotation drive assembly, the first rotation drive assembly is slidably arranged on the second guide rail, the second rotation drive assembly is arranged on the power output end of the first rotation drive assembly, the first rotation drive assembly can drive the second rotation drive assembly to rotate, the workpiece or the grinding wheel is located at the power output end of the second rotation drive assembly, and the second rotation drive assembly can drive the workpiece or the grinding wheel to rotate; The rotation axis of the workpiece or grinding wheel at the power output end of the first clamping mechanism is arranged perpendicular to the first guide rail; Processing methods include: Working condition 1: the first clamping mechanism is used to clamp the grinding wheel, and the second clamping mechanism is used to clamp the workpiece: When the outer cylindrical surface of the grinding wheel is used to grind the workpiece, the first clamping mechanism drives the grinding wheel to rotate, and the first clamping mechanism moves along the first guide rail to achieve feeding, and the second clamping mechanism drives the workpiece to rotate, and the second clamping mechanism moves along the second guide rail to achieve grinding; When the end face of the grinding wheel is used to grind the workpiece, the second clamping mechanism drives the workpiece to rotate, and the second clamping mechanism moves along the second guide rail to achieve feeding, and the first clamping mechanism drives the grinding wheel to rotate, and the first clamping mechanism moves along the first guide rail to achieve grinding; It also includes working condition 2, where the second clamping mechanism is used to clamp the grinding wheel, and the first clamping mechanism is used to clamp the workpiece: When the outer cylindrical surface of the grinding wheel is used to grind the workpiece, the first clamping mechanism drives the workpiece to rotate, and the first clamping mechanism moves along the first guide rail to achieve feeding, and the second clamping mechanism drives the grinding wheel to rotate, and the second clamping mechanism moves along the second guide rail to achieve grinding; When the grinding wheel end face is used to grind the workpiece, the second clamping mechanism drives the grinding wheel to rotate, and the second clamping mechanism moves along the second guide rail to achieve feeding, and the first clamping mechanism drives the workpiece to rotate, and the first clamping mechanism moves along the first guide rail to achieve grinding.

2. The processing method according to claim 1, characterized in that: The first clamping mechanism includes a rotating drive motor and a driving chuck. The rotating drive motor is slidably arranged on the first guide rail. The power output end of the rotating drive motor is used to connect with the driving chuck. The driving chuck is used to clamp the grinding wheel or the workpiece. The rotating drive motor is used to drive the grinding wheel or the workpiece to rotate.

3. The processing method according to claim 1, characterized in that: The rotation axis of the workpiece or grinding wheel driven by the power output end of the first rotation drive component is respectively arranged perpendicular to the first guide rail, the second guide rail, the rotation axis of the grinding wheel or workpiece driven by the power output end of the first clamping mechanism, and the rotation axis of the workpiece or grinding wheel driven by the power output end of the second rotation drive component.

4. The processing method according to claim 1, characterized in that: The first rotation driving assembly includes a first motor, the first motor is slidably arranged on the second guide rail, and the second rotation driving assembly is arranged at the power output end of the first motor.

5. The processing method according to claim 1, characterized in that: The second rotation drive assembly includes a second motor and a swing chuck. The second motor is arranged at the power output end of the first rotation drive assembly. The power output end of the second motor is used to connect with the swing chuck. The swing chuck is used to clamp the workpiece or the grinding wheel. The second motor is used to drive the workpiece or the grinding wheel to rotate.

6. The processing method according to claim 1, characterized in that: It also includes a first driving structure and a second driving structure, wherein the first driving structure is used to drive the first clamping mechanism to slide along the first guide rail, and the second driving structure is used to drive the second clamping mechanism to slide along the second guide rail.

7. The processing method according to claim 6, characterized in that: The first driving structure and the second driving structure have the same structure. Both the first driving structure and the second driving structure include a sliding driving motor, a lead screw and a slider. The sliding driving motor drives the lead screw to rotate. The slider is threadedly connected to the lead screw. The slider is used to set the first clamping mechanism or the second clamping mechanism.

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