High-precision grinding device

Abstract

A high-precision grinding device comprises a base table, and a bearing mechanism, a guide wheel mechanism, a guide wheel finishing assembly, a grinding wheel mechanism, a grinding wheel correcting assembly, a first base plate and a second base plate are assembled on the base table. The bearing mechanism, the guide wheel mechanism and the guide wheel trimming assembly are assembled on the first base plate, the first base plate is assembled on the base table through the feeding module, and the feeding module is used for driving the first base plate to move in a feeding mode. The second base plate is fixed to the base table, first fixing holes are distributed in the second base plate, the grinding wheel mechanism is assembled on the first bottom plate, the grinding wheel dressing assembly is assembled on the second bottom plate, second fixing holes are formed in the first bottom plate and the second bottom plate, and the first fixing holes and the second fixing holes are connected through fasteners. Compared with the prior art, modular assembly can be achieved through the split type bottom plate structural design, the maintenance process can be simplified, and the downtime of equipment can be shortened. In addition, the design facilitates independent adjustment or replacement of parts so as to meet different machining requirements.

Description

Technical Field

[0001] This utility model belongs to the technical field of centerless grinding equipment, specifically relating to a high-precision grinding device. Background Technology

[0002] Currently, centerless grinding equipment is widely used in the machining field for surface treatment and dimensional correction of precision parts. However, in existing centerless grinding equipment, the grinding wheel and grinding wheel dressing assembly mostly adopt an integral assembly structure, and their functional modules are usually integrated together. Once a component fails or wears out, the entire assembly or adjacent modules must be disassembled for repair or replacement, resulting in a complex, time-consuming, and costly maintenance process. In addition, traditional centerless grinding equipment has a fixed overall layout, with the guide wheel and grinding wheel arranged in parallel. If the component layout needs to be adjusted to adapt to different processing requirements, it is often necessary to redesign the grinding equipment, resulting in poor equipment adaptability and long modification cycles.

[0003] Therefore, based on some of the situations in the prior art described above, this application has made further designs and improvements. Utility Model Content

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution.

[0005] A high-precision grinding device includes a base, on which are mounted a support mechanism, a guide wheel mechanism, a guide wheel dressing assembly, a grinding wheel mechanism, a grinding wheel dressing assembly, a first base plate, and a second base plate. The support mechanism supports the workpiece to be processed. During processing, the guide wheel mechanism contacts the workpiece to drive its rotation, and the grinding wheel mechanism processes the end of the workpiece. The support mechanism, guide wheel mechanism, and guide wheel dressing assembly are mounted on the first base plate, which is mounted on the base via a feed module that drives the first base plate to feed. The second base plate is fixed to the base and has first fixing holes. The grinding wheel mechanism is mounted on a first base plate, and the grinding wheel dressing assembly is mounted on the second base plate. Both the first and second base plates have second fixing holes, which are connected by fasteners.

[0006] Furthermore, the grinding wheel mechanism includes a grinding wheel and a second motor that drives the grinding wheel to rotate; the grinding wheel is a frustum-shaped structure with one end larger than the other, and the side of the frustum-shaped structure is the machining surface. The grinding wheel is tilted so that the machining surface is tangent to the side of the workpiece.

[0007] Furthermore, both the guide wheel dressing assembly and the grinding wheel dressing assembly include an adjustment seat, on which a slide is mounted via a transverse die assembly, and on which a dresser is mounted via a forward die assembly. The dresser is used to dress the guide wheel or the grinding wheel.

[0008] Furthermore, the first base plate has a positioning bevel for positioning the second base plate. After the second base plate is positioned by the positioning bevel, the dressing end face of the dressing tool of the grinding wheel dressing assembly is tangent to the machining surface.

[0009] Furthermore, the supporting mechanism includes a support base, on which an inclined surface for placing the workpiece is provided. The inclined surface and the guide wheel cooperate to form a space for placing the workpiece. A limiting protrusion is provided on one side of the support base, which is used to axially limit the workpiece. The end of the workpiece to be processed protrudes from the other side of the support base.

[0010] Furthermore, the support mechanism also includes an adjustment and movement module, which is installed at the bottom of the support base and is used to drive the support base to move.

[0011] Compared with the prior art, this application has the following significant beneficial technical effects:

[0012] 1. The modular assembly achieved through the split base plate structure design simplifies maintenance processes and reduces equipment downtime. Furthermore, this design facilitates independent adjustment or replacement of components to adapt to different processing requirements.

[0013] 2. The use of a frustum-shaped grinding wheel design enables the machining of the workpiece end face. Compared with traditional centerless grinding equipment that can only grind the entire side of the workpiece, this improves the processing applicability of the equipment and can meet more processing needs.

[0014] 3. The positioning bevel enables the rapid and accurate alignment of the first and second base plates, ensuring that the dresser always maintains precise tangential contact with the grinding wheel's machining surface, thereby guaranteeing dressing accuracy and preventing grinding wheel shape deformation caused by positioning deviation.

[0015] 4. The position of the support can be adjusted by adjusting the moving module, which can adapt to the clamping and processing requirements of workpieces of different specifications, which helps to reduce changeover costs and improve production efficiency. Attached Figure Description

[0016] Figure 1 Three-dimensional for high-precision grinding equipment Figure 1 .

[0017] Figure 2 Three-dimensional for high-precision grinding equipment Figure 2 .

[0018] Figure 3 This is a 3D view of the grinding wheel mechanism.

[0019] Figure 4 A 3D view of the grinding wheel dressing assembly.

[0020] Figure 5 This is a top view of a high-precision grinding device.

[0021] Figure 6 for Figure 5 A magnified view of a portion of point A in the middle.

[0022] Figure 7 This is a magnified view of a portion of the workpiece during grinding.

[0023] Figure 8 This is a three-dimensional view of the support mechanism and the guide wheel mechanism.

[0024] Figure 9 for Figure 8 A magnified view of a section at point B.

[0025] The following is an explanation of the reference numerals in the attached figures:

[0026] 100. Base plate; 110. First base plate; 111. Feed module; 120. Second base plate; 121. First bottom plate; 122. Second bottom plate; 123. Positioning slope; 124. First fixing hole; 125. Second fixing hole; 130. Workpiece;

[0027] 200. Supporting mechanism; 210. Part support seat; 211. Limiting protrusion; 220. Adjustable moving module;

[0028] 300. Guide wheel mechanism; 310. Guide wheel; 320. First motor;

[0029] 400. Grinding wheel mechanism; 410. Grinding wheel; 411. Machined surface; 420. Second motor;

[0030] 500, Guide wheel dressing assembly; 501, Grinding wheel dressing assembly; 510, Adjustment seat; 520, Transverse movement module; 530, Slide seat; 540, Forward movement module; 550, Dresser. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0032] In the following embodiments, the same or similar reference numerals denote the same or similar components or components with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0033] In the description of this utility model, it should be understood that the terms such as center, longitudinal, transverse, length, width, thickness, upper, lower, front, back, left, right, vertical, horizontal, top, bottom, inner, outer, clockwise, and counterclockwise, indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features shown. In the description of this utility model, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] Reference Figures 1 to 9 A high-precision grinding apparatus includes a base 100, on which are mounted a support mechanism 200, a guide wheel mechanism 300, a guide wheel dressing assembly 500, a grinding wheel mechanism 400, a grinding wheel 410 correction assembly, a first base plate 110, and a second base plate 120. The guide wheel mechanism 300 includes a guide wheel 310 and a first motor 320 for driving the guide wheel 310 to rotate. The grinding wheel mechanism 400 includes a grinding wheel 410 and a second motor 420 for driving the grinding wheel 410 to rotate. The support mechanism 200 supports the workpiece 130 to be processed. During processing, the guide wheel mechanism 300 contacts the workpiece 130 to drive the workpiece 130 to rotate, and the grinding wheel mechanism 400 processes the end of the workpiece 130. The support mechanism 200, guide wheel mechanism 300, and guide wheel dressing assembly 500 are assembled on the first base plate 110. The first base plate 110 is assembled on the base 100 via a feed module 111, which drives the first base plate 110 to feed and move. The second base plate 120 is fixed on the base 100 and has first fixing holes 124 distributed on it. The grinding wheel mechanism 400 is assembled on the first base plate 121, and the grinding wheel dressing assembly 501 is assembled on the second base plate 122. Both the first base plate 121 and the second base plate 122 have second fixing holes 125, which are connected by fasteners. The modular assembly achieved by the split base plate structure design simplifies the maintenance process and reduces equipment downtime. Furthermore, this design facilitates independent adjustment or replacement of components to adapt to different processing requirements.

[0035] Furthermore, the grinding wheel 410 has a frustum-shaped structure with one end larger than the other, and the side of the frustum-shaped structure is the machining surface 411. The grinding wheel 410 is inclined so that the machining surface 411 is tangent to the side of the workpiece 130. The frustum-shaped grinding wheel 410 design allows for machining of the end face of the workpiece 130. Compared to traditional centerless grinding equipment that can only grind the entire side of the workpiece 130, this improves the equipment's processing applicability and can adapt to more processing needs. Both the guide wheel dressing assembly 500 and the grinding wheel dressing assembly 501 include an adjusting seat 510. A slide 530 is mounted on the adjusting seat 510 via a transverse module 520. A dresser 550 is mounted on the slide 530 via a forward moving module 540. The dresser 550 is used to dress the guide wheel 310 or the grinding wheel 410. The first base plate 121 has a positioning ramp 123 on its side for positioning the second base plate 122. After the second base plate 122 is positioned by the positioning ramp 123, the dressing end face of the dresser 550 of the grinding wheel dressing assembly 501 is tangent to the machining surface 411. The positioning ramp 123 enables the first base plate 121 and the second base plate 122 to be quickly and accurately aligned, ensuring that the dresser 550 always maintains precise tangential contact with the machining surface 411 of the grinding wheel 410, thereby ensuring dressing accuracy and preventing deformation of the grinding wheel 410 due to positioning deviation.

[0036] In machining the end face of workpiece 130, traditional machining typically employs external cylindrical grinding, which relies on a mandrel (or similar fixture) to fix the workpiece 130. Specifically, the workpiece 130 needs to have a center hole pre-machined, and the mandrel passes through the center hole to achieve axial positioning and clamping. The technical solution of this application, however, uses the inclined surfaces of the guide wheel 310 and the support seat 210 to form a self-centering clamping system. This eliminates the clamping steps of traditional fixtures. The workpiece 130 only needs to be placed on the inclined surface of the support seat 210 for positioning. Self-centering positioning is achieved entirely through the dynamic contact between the workpiece 130 and the guide wheel 310, the support seat 210, and the grinding wheel 410, significantly shortening loading / unloading and positioning time and improving machining efficiency. Furthermore, this design eliminates positioning errors caused by traditional fixture clamping. Simultaneously, the grinding wheel 410 is inclined and forms precise tangential contact with the end face of the workpiece 130, ensuring uniform distribution of grinding force. This allows the surface finish and surface roughness of the workpiece 130 to be controlled within 1μm.

[0037] Furthermore, the support mechanism 200 includes a support base 210, on which an inclined surface is provided for placing the workpiece 130. The inclined surface and the guide wheel 310 cooperate to form a space for placing the workpiece 130. A limiting protrusion 211 is provided on one side of the support base 210, which is used to axially limit the workpiece 130. The end of the workpiece 130 to be processed protrudes from the other side of the support base 210. The support mechanism 200 also includes an adjusting moving module 220. The adjusting moving module 220 is assembled at the bottom of the support base 210 and is used to drive the support base 210 to move. By adjusting the moving module 220, the position of the support base 210 can be adjusted to adapt to the clamping and processing requirements of workpieces 130 of different specifications, which helps to reduce changeover costs and improve production efficiency.

[0038] The scope of protection of this utility model includes, but is not limited to, the above embodiments. The scope of protection of this utility model is defined by the claims. Any substitutions, modifications, or improvements to this technology that are easily conceived by those skilled in the art shall fall within the scope of protection of this utility model.

Claims

1. A high-precision grinding device, comprising a base (100), a supporting mechanism (200), a guide wheel mechanism (300), a guide wheel dressing assembly (500), a grinding wheel mechanism (400) and a grinding wheel (410) dressing assembly are assembled on the base (100), the supporting mechanism (200) is used for supporting a workpiece (130) to be processed, the guide wheel mechanism (300) contacts the workpiece (130) to drive the workpiece (130) to rotate during processing, and the grinding wheel mechanism (400) processes the end of the workpiece (130), characterized in that, The first seat plate (110) and the second seat plate (120) are further included; The supporting mechanism (200), the guide wheel mechanism (300) and the guide wheel dressing assembly (500) are assembled on the first seat plate (110), the first seat plate (110) is assembled on the base (100) through the feeding module (111), and the feeding module (111) is used for driving the first seat plate (110) to feed and move. The second seat plate (120) is fixed on the base (100), the first fixing hole (124) is distributed on the second seat plate (120), the grinding wheel mechanism (400) is assembled on the first bottom plate (121), the grinding wheel dressing assembly (501) is assembled on the second bottom plate (122), the second fixing hole (125) is arranged on the first bottom plate (121) and the second bottom plate (122), and the first fixing hole (124) and the second fixing hole (125) are connected through fasteners.

2. The high-precision grinding device according to claim 1, characterized in that The grinding wheel mechanism (400) comprises a grinding wheel (410) and a second motor (420) for driving the grinding wheel (410) to rotate; the grinding wheel (410) is a circular truncated cone structure with one end large and the other end small, the side surface of the circular truncated cone structure is a machining surface (411), and the grinding wheel (410) is arranged obliquely so that the machining surface (411) is tangent to the side surface of the workpiece (130).

3. A high precision grinding device according to claim 2, characterized in that The guide wheel dressing assembly (500) and the grinding wheel dressing assembly (501) both comprise an adjusting seat (510), the adjusting seat (510) is assembled with a sliding seat (530) through a transverse movement module (520), the sliding seat (530) is assembled with a dresser (550) through a forward movement module (540), and the dresser (550) is used for dressing the guide wheel (310) or the grinding wheel (410).

4. A high precision grinding device according to claim 3, characterized in that The first bottom plate (121) is provided with a positioning inclined surface (123) for positioning the second bottom plate (122), and after the second bottom plate (122) is positioned through the positioning inclined surface (123), the dressing end surface of the dresser (550) of the grinding wheel dressing assembly (501) is tangent to the machining surface (411).

5. The high-precision grinding device according to claim 1, wherein The supporting mechanism (200) comprises a supporting seat (210), the supporting seat (210) is provided with an inclined surface for placing the workpiece (130), the inclined surface and the guide wheel (310) cooperate to form a space for placing the workpiece (130), one side of the supporting seat (210) is provided with a limiting protrusion (211), the limiting protrusion (211) is used for axially limiting the workpiece (130), and the end of the workpiece (130) used for machining is exposed from the other side of the supporting seat (210).

6. A high precision grinding device according to claim 5, characterized in that The supporting mechanism (200) further comprises an adjusting movement module (220), the supporting seat (210) is assembled with the adjusting movement module (220) at the bottom, and the adjusting movement module (220) is used for driving the supporting seat (210) to move.

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