Auxiliary driving headstock mechanism for grinding machine

Abstract

The invention provides an auxiliary driving headstock mechanism for a grinding machine, and belongs to the field of machine tools. The problems that manual clamping of an existing grinding machine spindle chuck is inconvenient, and machining errors exist are solved. The auxiliary driving headstock mechanism for the grinding machine comprises a positioning frame, a driving device and a moving device, a chuck device is arranged on the positioning frame, an opening groove is formed in the positioning frame, the chuck device is movably installed on the positioning frame, a bearing part is arranged between the chuck device and the positioning frame, and the driving device comprises two driving wheels, a driving box and a driving assembly. The moving device comprises a lower positioning plate and a driving air cylinder, a fixing side plate is arranged on the lower positioning plate, the two driving wheels are distributed in an up-down structure and form a staggered angle structure, and the driving wheels, the driving box and the driving assembly drive the lower positioning plate to move through the driving air cylinder, so that the driving wheels can be attached to and press a workpiece. The driving box and the driving wheel are driven to rotate through the driving assembly, so that the workpiece is driven to rotate. The fixture has the advantages of high clamping efficiency and high machining precision.

Description

Technical Field

[0001] The invention belongs to the field of machine tools and relates to a headstock mechanism, in particular to an auxiliary driving headstock mechanism for a grinding machine. Background Art

[0002] A grinder is a machine tool that uses abrasive tools to grind the surface of a workpiece. Most grinders use high-speed rotating grinding wheels for grinding.

[0003] When a grinder grinds the surface of a workpiece, the grinder spindle chuck is needed to fix the workpiece to drive the workpiece to rotate for processing. For workpieces with high concentricity and circular runout tolerance accuracy requirements, most existing grinders use manual clamping of the workpiece and use marking for adjustment. Manual clamping takes a long time, clamping is laborious, and the workpiece is prone to loosening and eccentricity, affecting the workpiece processing quality. Summary of the invention

[0004] The purpose of the present invention is to provide an auxiliary drive headstock mechanism for a grinding machine to solve the above problems existing in the prior art.

[0005] The object of the present invention can be achieved by the following technical solutions: An auxiliary drive headstock mechanism for a grinding machine, characterized in that it includes a positioning frame for positioning, a driving device capable of driving a workpiece to rotate, and a moving device capable of driving the driving device to move; The positioning frame is provided with a chuck device for facilitating the rapid clamping and positioning of the workpiece, the positioning frame is provided with an open slot for preventing interference with the moving stroke, the chuck device is movably mounted on the positioning frame, and a bearing member is provided between the chuck device and the positioning frame; The driving device comprises two driving wheels capable of driving the workpiece to rotate, a driving box drivingly connected to the driving wheels, and a driving assembly capable of driving the driving box to work; The moving device comprises a movable lower positioning plate and a driving cylinder for driving the lower positioning plate to move, and the lower positioning plate is provided with a fixed side plate for fixing the driving box and the driving assembly; The two driving wheels are arranged in an upper and lower structure and form a staggered angle structure; The driving wheel, driving box and driving assembly move the positioning plate under the drive of the driving cylinder, so that the driving wheel can fit and press the workpiece, and the driving box and driving wheel can be driven to rotate through the driving assembly, thereby driving the workpiece to rotate.

[0006] In the above-mentioned auxiliary drive head frame mechanism for a grinding machine, the chuck device is movably connected to the positioning frame through a bearing member, and the chuck device includes a drive chuck for positioning and clamping the workpiece, a positioning seat for facilitating positioning and clamping the workpiece, and an auxiliary seat for auxiliary clamping. The drive chuck is a split and detachable structure arranged in the center of the positioning seat.

[0007] In the above-mentioned auxiliary drive headstock mechanism for a grinding machine, a plurality of guide members are arranged on the positioning seat to facilitate the guiding, positioning and clamping of the workpiece. The inner sides of the guide members are arranged in an arc structure, and the guide members and the positioning seat are detachable structures.

[0008] In the above-mentioned auxiliary drive headstock mechanism for a grinding machine, a plurality of buffer components for auxiliary clamping and elastic buffering are installed on the end surface of the auxiliary seat, and the buffer components include buffer members for elastic buffering and elastic members for elastic resetting.

[0009] In the above-mentioned auxiliary drive headstock mechanism for a grinding machine, the drive assembly can synchronously drive the drive box, thereby driving the drive wheel to rotate synchronously. The drive assembly can be a motor and a transmission belt structure transmission cooperation to synchronously drive the drive box to work.

[0010] In the above-mentioned auxiliary drive headstock mechanism for a grinder, the two drive wheels cooperate with each other through a drive box, a drive assembly, a drive cylinder and a lower positioning plate structure, can fit and press the workpiece on the chuck device, and cooperate with the grinding wheel of the grinder, thereby realizing the grinding of the outer circle of the workpiece.

[0011] In the above-mentioned auxiliary drive headstock mechanism for a grinding machine, the fixed side plate is arranged in an "L"-shaped structure and is fixedly mounted on the lower positioning plate, and the drive box and the drive assembly are fixedly mounted on the fixed side plate.

[0012] In the above-mentioned auxiliary drive headstock mechanism for a grinding machine, the drive box is connected to the drive wheel through the drive shaft and drives the rotational motion.

[0013] Compared with the prior art, the auxiliary drive head frame mechanism of the grinder has a reasonable structural design. The staggered angle formed by the cooperation of two drive wheels is used to make the drive wheels fit and press the workpiece, thereby driving the workpiece to rotate. At the same time, the chuck device and the positioning frame are movably connected through a bearing part, which makes it convenient for the drive wheel to drive the workpiece to rotate. The triangular structure design with the grinding wheel of the grinder improves the rotational stability of the workpiece grinding, ensures the concentricity and circular runout accuracy to the greatest extent, and reduces the number of manual repeated adjustment steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the auxiliary drive headstock mechanism for the grinder.

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the auxiliary drive headstock mechanism for the grinder.

[0016] Figure 3 It is a three-dimensional schematic diagram of a positioning frame of an auxiliary drive headstock mechanism for the grinder.

[0017] In the figure, 1, positioning frame; 2, chuck device; 3, opening groove; 4, bearing member; 5, driving wheel; 6, driving box; 7, driving assembly; 8, lower positioning plate; 9, fixed side plate; 10, driving chuck; 11, positioning seat; 12, auxiliary seat; 13, guide member; 14, buffer assembly; 15, driving shaft. DETAILED DESCRIPTION

[0018] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0019] like Figure 1 , Figure 2 , Figure 3 As shown, the auxiliary drive head frame mechanism for the grinding machine includes a positioning frame 1 for positioning, a driving device that can drive the workpiece to rotate, and a moving device that can drive the driving device to move. The positioning frame 1 is provided with a chuck device 2 that is convenient for fast clamping and positioning of the workpiece. The positioning frame 1 is provided with an open groove 3 for preventing interference with the moving stroke. The chuck device 2 is movably installed on the positioning frame 1, and a bearing member 4 is provided between the positioning frame 1 to facilitate the rotation of the chuck device 2. The driving device includes two driving wheels 5 that can drive the workpiece to rotate, and a driving wheel 5 that is transmission-connected to the driving wheel 5. The movable device comprises a movable lower positioning plate 8 and a driving cylinder for driving the lower positioning plate 8 to move. The lower positioning plate 8 is provided with a fixed side plate 9 for fixing the driving box 6 and the driving assembly 7. The two driving wheels 5 are distributed in an upper and lower structure and form a staggered angle structure. The driving wheel 5, the driving box 6 and the driving assembly 7 are driven by the driving cylinder to move the lower positioning plate 8, so that the driving wheel 5 can fit and press the workpiece, and the driving box 6 and the driving wheel 5 are driven to rotate through the driving assembly 7, thereby driving the workpiece to rotate.

[0020] The structure is reasonably designed, and the staggered angle formed by the cooperation of the two driving wheels 5 is utilized to make the driving wheels 5 fit and press the workpiece, thereby driving the workpiece to rotate. At the same time, the chuck device 2 and the positioning frame 1 are movably connected through the bearing member 4, which makes it convenient for the driving wheel 5 to drive the workpiece to rotate, and the triangular structure design with the grinding wheel of the grinder improves the rotation stability of the workpiece grinding, greatly ensures the concentricity and circular runout accuracy, and reduces the number of manual repeated adjustment steps.

[0021] To further elaborate, in order to facilitate the driving wheel 5 to drive the workpiece to rotate, and at the same time, to adjust for workpieces of different specifications and sizes, the chuck device 2 is movably connected to the positioning frame 1 through the bearing member 4, and the chuck device 2 includes a driving chuck 10 for positioning and clamping the workpiece, a positioning seat 11 for facilitating positioning and clamping of the workpiece, and an auxiliary seat 12 for auxiliary clamping. The driving chuck 10 is a split and detachable structure arranged at the center of the positioning seat 11, and a plurality of guide members 13 are arranged on the positioning seat 11 to facilitate guiding, positioning and clamping of the workpiece. The inner side of the guide member 13 is arranged in an arc structure, and the guide member 13 and the positioning seat 11 are detachable structures. The chuck 10 can adopt an internal expansion type hydraulic chuck or a pneumatic chuck according to actual processing requirements, so as to facilitate the corresponding adjustment and replacement for workpieces with different outer diameters in the later stage. A plurality of buffer components 14 for auxiliary clamping and elastic buffering are installed on the end face of the auxiliary seat 12. The buffer component 14 includes a buffer part for elastic buffering and an elastic part for elastic resetting. The end face of the auxiliary seat 12 is a standard plane, and the end of the workpiece needs to be ground in advance to facilitate quick cooperation with the end face of the auxiliary seat 12. The above-mentioned buffer component 14 structure can perform buffered unloading when the workpiece is clamped to prevent damage caused by clamping impact. At the same time, the guide member 13 structure is used to assist in guiding clamping.

[0022] To elaborate further, in order to achieve synchronous driving of the drive box 6 and facilitate the rolling, fitting and pressing of the drive wheel 5 and the workpiece, the drive assembly 7 can synchronously drive the drive box 6, thereby driving the drive wheel 5 to rotate synchronously. The drive assembly 7 can be a motor and a transmission belt structure transmission cooperation to synchronously drive the drive box 6 to work.

[0023] Preferably, the two driving wheels 5 cooperate with the driving box 6, driving assembly 7, driving cylinder and lower positioning plate 8 to fit the workpiece tightly on the chuck device 2 and cooperate with the grinding wheel of the grinder to achieve grinding of the outer circle of the workpiece.

[0024] To elaborate further, in order to facilitate the fixed installation of the driving device and drive it to move, the fixed side plate 9 is arranged in an "L"-shaped structure and is fixedly installed on the lower positioning plate 8, and the driving box 6 and the driving assembly 7 are fixedly installed on the fixed side plate 9.

[0025] Preferably, the drive box 6 is connected to the drive wheel 5 via the drive shaft 15 and drives the rotational motion.

[0026] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0027] Although more terms are used in this article, it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. An auxiliary drive headstock mechanism for a grinding machine, characterized in that: It comprises a positioning frame (1) for positioning, a driving device capable of driving the workpiece to rotate, and a moving device capable of driving the driving device to move; The positioning frame (1) is provided with a chuck device (2) for facilitating quick clamping and positioning of a workpiece, the positioning frame (1) is provided with an open groove (3) for preventing interference with the moving stroke, the chuck device (2) is movably mounted on the positioning frame (1), and a bearing member (4) is provided between the chuck device (2) and the positioning frame (1); The driving device comprises two driving wheels (5) capable of driving the workpiece to rotate, a driving box (6) drivingly connected to the driving wheels (5), and a driving assembly (7) capable of driving the driving box (6) to work; The moving device comprises a movable lower positioning plate (8) and a driving cylinder for driving the lower positioning plate (8) to move, and the lower positioning plate (8) is provided with a fixed side plate (9) for fixing the driving box (6) and the driving assembly (7); The two driving wheels (5) are arranged in an upper and lower structure and form a staggered angle structure; The driving wheel (5), the driving box (6) and the driving assembly (7) are driven by the driving cylinder to move the positioning plate (8), so that the driving wheel (5) can be pressed against the workpiece, and the driving assembly (7) can drive the driving box (6) and the driving wheel (5) to rotate, thereby driving the workpiece to rotate.

2. The auxiliary drive headstock mechanism for a grinding machine according to claim 1, characterized in that: The chuck device (2) is movably connected to the positioning frame (1) via a bearing member (4), and the chuck device (2) comprises a driving chuck (10) for positioning and clamping a workpiece, a positioning seat (11) for facilitating positioning and clamping the workpiece, and an auxiliary seat (12) for auxiliary clamping, wherein the driving chuck (10) is a split and detachable structure arranged at the center of the positioning seat (11).

3. The auxiliary drive headstock mechanism for a grinding machine according to claim 2, characterized in that: A plurality of guide members (13) are arranged on the positioning seat (11) to facilitate the guiding, positioning and clamping of the workpiece. The inner sides of the guide members (13) are all arranged in an arc structure, and the guide members (13) and the positioning seat (11) are detachable structures.

4. The auxiliary drive headstock mechanism for a grinding machine according to claim 3, characterized in that: A plurality of buffer components (14) for auxiliary clamping and capable of elastic buffering are installed on the end surface of the auxiliary seat (12). The buffer components (14) include buffer parts for elastic buffering and elastic parts for elastic resetting.

5. The auxiliary drive headstock mechanism for a grinding machine according to claim 1, characterized in that: The driving assembly (7) can synchronously drive the driving box (6), thereby driving the driving wheel (5) to perform synchronous rotational motion. The driving assembly (7) can be a motor and a transmission belt structure transmission cooperation, synchronously driving the driving box (6) to work.

6. The auxiliary drive headstock mechanism for a grinding machine according to claim 1, characterized in that: The two driving wheels (5) cooperate with each other through the driving box (6), the driving assembly (7), the driving cylinder and the lower positioning plate (8) to fit the workpiece tightly on the chuck device (2) and cooperate with the grinding wheel of the grinding machine to achieve grinding processing on the outer circle of the workpiece.

7. The auxiliary drive headstock mechanism for a grinding machine according to claim 1, characterized in that: The fixed side plate (9) is arranged in an "L"-shaped structure and is fixedly mounted on the lower positioning plate (8); the drive box (6) and the drive assembly (7) are fixedly mounted on the fixed side plate (9).

8. The auxiliary drive headstock mechanism for a grinding machine according to claim 1, characterized in that: The driving box (6) is connected to the driving wheel (5) through the driving shaft (15) and drives the rotational movement.

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