Double-grinding-wheel grinding head connecting structure

Abstract

The utility model discloses a double-grinding-wheel grinding head connecting structure which aims to overcome the defect that when a linear guide rail is ground, grinding wheels need to be trimmed in the process of switching from coarse grinding to fine grinding, and working efficiency is affected. The device comprises a rotating head and a grinding head, the grinding head is arranged on the rotating head, a coarse grinding wheel and a fine grinding wheel are arranged on the grinding head to form a double-grinding-wheel structure, the coarse grinding wheel and the fine grinding wheel are axially arranged at intervals, and grinding surfaces are arranged on the outer edges of the coarse grinding wheel and the fine grinding wheel. According to the double-grinding-wheel grinding head connecting structure, the coarse grinding wheel and the fine grinding wheel are arranged on the grinding head, in the grinding process of the linear guide rail, the grinding wheels can be directly switched when coarse grinding is switched to fine grinding, the grinding wheels do not need to be trimmed, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of grinding machine, more specifically, it relates to a double-sand-wheel grinding head connecting structure. BACKGROUND

[0002] Grinding machine is indispensable equipment in mechanical processing, and the processing of workpieces through grinding machine can improve the smoothness of the surface to meet the machining requirements. In the grinding process of linear guide rails, coarse grinding is first carried out by using a coarse grinding wheel, and then fine grinding is carried out by using a fine grinding wheel. When the existing grinding machine grinds the linear guide rail, the grinding head is first dressed to a coarse sand state to coarsely grind the linear guide rail. After coarse grinding is completed, the grinding head is dressed to a fine sand state to finely grind the linear guide rail, and finally the grinding of the linear guide rail is completed. In the process of switching from coarse grinding to fine grinding, the grinding wheel needs to be dressed, which affects the work efficiency. For example, Chinese patent application No. 2024111709316 discloses a linear guide rail grinding machine which simultaneously grinds both sides of the linear guide rail by using two vertical grinding heads, thereby reducing the clamping frequency and improving the grinding accuracy. However, in the process of switching from coarse grinding to fine grinding, the grinding wheel needs to be dressed, which affects the work efficiency. SUMMARY

[0003] In order to overcome the above-mentioned shortcomings, the utility model provides a double-sand-wheel grinding head connecting structure, coarse grinding sand wheels and fine grinding sand wheels are arranged on the grinding head, and the switching of the grinding wheels can be directly carried out when switching from coarse grinding to fine grinding during the grinding process of the linear guide rail, without the need for dressing the grinding wheels, thereby improving the work efficiency.

[0004] In order to solve the above-mentioned technical problems, the utility model adopts the following technical scheme: a double-sand-wheel grinding head connecting structure, comprising a rotating head and a grinding head, the grinding head is installed on the rotating head, coarse grinding sand wheels and fine grinding sand wheels are installed on the grinding head to form a double-sand-wheel structure, the coarse grinding sand wheels and the fine grinding sand wheels are axially spaced apart, and the outer edges of the coarse grinding sand wheels and the fine grinding sand wheels are provided with grinding surfaces.

[0005] During the grinding process of the linear guide rail, the rotating head is rotated to drive the coarse grinding sand wheels and the fine grinding sand wheels to rotate. First, the grinding surface on the coarse grinding sand wheel is in contact with the surface of the linear guide rail to perform coarse grinding. After coarse grinding is completed, the position of the rotating head is axially moved to make the grinding surface on the fine grinding sand wheel in contact with the surface of the linear guide rail to perform fine grinding. The switching of the grinding wheels can be directly carried out when switching from coarse grinding to fine grinding, without the need for dressing the grinding wheels. The coarse grinding sand wheels and the fine grinding sand wheels are axially spaced apart to ensure that the fine grinding sand wheels interfere with the linear guide rail during the coarse grinding process and that the coarse grinding sand wheels interfere with the linear guide rail during the fine grinding process.

[0006] The grinding head of the double-grinding-wheel grinding head connecting structure of the application is provided with a rough grinding wheel and a fine grinding wheel, and during the linear guide rail grinding process, the grinding wheel can be directly switched when switching from rough grinding to fine grinding, without the need for grinding wheel dressing, thereby improving work efficiency.

[0007] Preferably, the rough grinding wheel and the fine grinding wheel are each provided with a dressing ring with a trapezoidal cross section, the dressing ring comprising an upper inclined surface and a lower inclined surface, and a grinding surface being arranged between the upper inclined surface and the lower inclined surface, and the thickness of the dressing ring gradually decreases radially outward.

[0008] The trapezoidal cross section of the dressing ring is beneficial to chip removal and heat dissipation during the grinding process, and the thickness of the dressing ring gradually decreases radially outward, thereby ensuring the strength of the grinding surface position.

[0009] Preferably, the rotating head is connected to the output shaft of the servo motor.

[0010] The rotating head is driven to rotate by the servo motor, which is stable and reliable.

[0011] Preferably, the rotating head is correspondingly provided with a mounting seat, and the rotating head is rotatably mounted on the mounting seat.

[0012] The mounting seat facilitates the installation of the rotating head and facilitates the installation of the grinding head device on the grinding machine through the mounting seat.

[0013] Preferably, a positioning piston cylinder is mounted on the mounting seat, an extension rod of the positioning piston cylinder is connected to a positioning seat, and a positioning rotating column is rotatably mounted on the positioning seat.

[0014] After the linear guide rail is mounted on the workbench, the entire grinding head device is moved downward, the extension rod of the positioning piston cylinder is extended outward, the positioning rotating column on the positioning seat is extended to the periphery of the grinding head and contacts the outer side surface of the linear guide rail, and then the entire grinding head device is moved along the length direction of the linear guide rail to correct the linear guide rail, thereby ensuring the accuracy of the loading position of the linear guide rail and the grinding accuracy.

[0015] In another scheme, an outwardly extending connecting seat is mounted on the mounting seat, a positioning block is mounted on the connecting seat, and the positioning block is arranged at the periphery of the grinding head.

[0016] After the linear guide rail is mounted on the workbench, the entire grinding head device is moved downward, the positioning block contacts the outer side surface of the linear guide rail, and then the entire grinding head device is moved along the length direction of the linear guide rail to correct the linear guide rail, thereby ensuring the accuracy of the loading position of the linear guide rail and the grinding accuracy.

[0017] Many times, the straight linear guide rail is installed with the grinding head on both sides, and the two grinding heads grind the two sides of the straight linear guide rail at the same time. At this time, the positioning piston cylinder is arranged on one grinding head, and the connecting seat is arranged on the other grinding head. When correcting deviation, the straight linear guide rail is clamped between the positioning block and the positioning rotating column, and the correction is more accurate and reliable.

[0018] As preferred, the grinding head comprises a mounting disc and a clamping disc, and the coarse grinding wheel and the fine grinding wheel are clamped and mounted between the mounting disc and the clamping disc.

[0019] The mounting disc and the clamping disc clamp and position the coarse grinding wheel and the fine grinding wheel, which is accurate and reliable.

[0020] As preferred, a circular table-shaped mounting hole is arranged on the mounting disc, a circular table-shaped positioning head is arranged at the end of the rotating head, the positioning head and the mounting hole are adaptively connected, and the end of the positioning head is tightly connected with the pressing plate.

[0021] When the grinding head is connected with the rotating head, the mounting hole on the mounting disc is adaptively connected with the positioning head on the rotating head. The circular table-shaped mounting hole and the positioning head not only realize tight connection in the process of tight connection of the pressing plate, but also realize deviation correction, thereby ensuring coaxiality after connection.

[0022] As preferred, a positioning groove is arranged on the mounting disc, and a positioning protruding ring is arranged on the rotating head, and the positioning protruding ring and the positioning groove are adaptively inserted.

[0023] The positioning protruding ring and the positioning groove are adaptively inserted and connected to realize circumferential locking of the rotating head and the mounting disc.

[0024] As preferred, an adjusting disc is arranged between the coarse grinding wheel and the fine grinding wheel, and the axial spacing of the coarse grinding wheel and the fine grinding wheel is adjusted by replacing the adjusting disc with different thicknesses.

[0025] The arrangement of the adjusting disc can adjust the axial spacing of the coarse grinding wheel and the fine grinding wheel to adapt to the grinding operation of linear guide rails of different sizes and specifications, which is flexible and convenient.

[0026] Compared with the prior art, the application has the following beneficial effects: (1) the grinding head of the double-wheel grinding head connection structure of the application is provided with a coarse grinding wheel and a fine grinding wheel. During the grinding process of the linear guide rail, the grinding wheel can be directly switched when switching from coarse grinding to fine grinding, without the need for grinding wheel trimming, thereby improving work efficiency; (2) the adjusting disc is arranged between the coarse grinding wheel and the fine grinding wheel, and the axial spacing of the coarse grinding wheel and the fine grinding wheel can be adjusted to adapt to the grinding operation of linear guide rails of different sizes and specifications, which is flexible and convenient; (3) before the linear guide rail is ground, the grinding head can correct the deviation of the linear guide rail, thereby ensuring the accuracy of the loading position of the linear guide rail and further ensuring the grinding precision. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1is the structural diagram of embodiment 1 and 2 of the utility model.

[0028] Figure 2 is the partial sectional view of embodiment 1 of the utility model.

[0029] Figure 3 is the partial sectional view of embodiment 2 of the utility model.

[0030] Figure 4 is the positioning rotary column connection diagram of embodiment 1 and 2 of the utility model.

[0031] Figure 5 is the structural diagram of embodiment 3 and 4 of the utility model.

[0032] Figure 6 is the side view of embodiment 3 and 4 of the utility model.

[0033] In the figure: 1, rotating head, 2, grinding head, 3, coarse grinding wheel, 4, fine grinding wheel, 5, grinding surface, 6, dressing ring, 7, servo motor, 8, mounting seat, 9, connecting plate, 10, connecting disc, 11, fastening strip, 12, mounting disc, 13, clamping disc, 14, mounting ring groove, 15, clamping ring groove, 16, mounting hole, 17, positioning head, 18, pressing plate, 19, recessed slot hole, 20, positioning groove, 21, positioning convex ring, 22, positioning piston cylinder, 23, positioning seat, 24, positioning rotary column, 25, adjusting disc, 26, convex ring, 27, connecting seat, 28, positioning block. DETAILED DESCRIPTION

[0034] The technical scheme of the utility model will be further specifically described below by specific embodiments and in conjunction with the drawings:

[0035] Embodiment 1: a double grinding wheel grinding head connecting structure (see Figure 1 、 Figure 2 、 Figure 4 ), including rotating head 1 and grinding head 2, rotating head 1 and grinding head 2 coaxial arrangement, grinding head 2 is installed on rotating head 1, and grinding head 2 is detachably connected with rotating head 1. The coarse grinding wheel 3 and the fine grinding wheel 4 are installed on the grinding head 2 to form a double grinding wheel structure, the coarse grinding wheel 3 and the fine grinding wheel 4 are axially spaced, and the outer edges of the coarse grinding wheel 3 and the fine grinding wheel 4 are provided with grinding surfaces 5.

[0036] The outer edges of the coarse grinding wheel 3 and the fine grinding wheel 4 are provided with a trimming ring 6 in the shape of a trapezoid in cross section, the trimming ring 6 comprising an upper inclined surface and a lower inclined surface, the upper inclined surface and the lower inclined surface being symmetrically arranged, a grinding surface 5 being arranged between the upper inclined surface and the lower inclined surface, the thickness of the trimming ring 6 gradually decreasing radially outward. The grit size of the grinding surface 5 of the coarse grinding wheel 3 is greater than the grit size of the grinding surface 5 of the fine grinding wheel 4. The trimming ring 6 in the shape of a trapezoid in cross section is beneficial to chip removal and heat dissipation during grinding. The thickness of the trimming ring 6 gradually decreasing radially outward ensures the strength of the position of the grinding surface 5.

[0037] The inner edges of the coarse grinding wheel 3 and the fine grinding wheel 4 are connected together to form an integrated structure. During processing, the integrated grinding wheel is trimmed to form an axial gap between the coarse grinding wheel 3 and the fine grinding wheel 4, thereby forming the coarse grinding wheel 3 and the fine grinding wheel 4, and then the edges of the grinding wheel are trimmed to form the grinding surface 5 of the outer edges of the coarse grinding wheel 3 and the fine grinding wheel 4, which are used for coarse grinding and fine grinding, respectively.

[0038] The rotating head 1 is connected to the output shaft of the servo motor 7. The servo motor 7 drives the rotating head 1 to rotate, which is convenient for controlling the rotating speed. The rotating head 1 is correspondingly provided with a mounting seat 8, and the rotating head 1 is rotatably mounted on the mounting seat 8. The servo motor 7 is mounted on one end of the mounting seat 8, and the mounting seat 8 is provided with a connecting hole, the rotating head 1 is rotatably connected to the connecting hole, and the end of the rotating head 1 extends out of the connecting hole.

[0039] The side wall of the mounting seat 8 is fixedly connected with a connecting plate 9, and a plurality of fastening holes are arranged on the connecting plate 9, which is convenient for fastening the mounting seat 8 to the grinding machine. The end of the servo motor 7 is provided with a connecting disc 10, the connecting disc 10 is fixedly connected with the end of the mounting seat 8, a fastening strip 11 is arranged on the outer wall of the servo motor 7, the fastening strip 11 is fixedly connected with the grinding machine, and the stability of the connection of the servo motor 7 is improved.

[0040] The grinding head 2 comprises a mounting disc 12 and a clamping disc 13, and the coarse grinding wheel 3 and the fine grinding wheel 4 are clamped and mounted between the mounting disc 12 and the clamping disc 13. The edges of the opposite surfaces of the mounting disc 12 and the clamping disc 13 are respectively provided with a mounting ring groove 14 and a clamping ring groove 15, the inner edge of the fine grinding wheel 4 is adaptively mounted at the mounting ring groove 14, and the inner edge of the coarse grinding wheel 3 is adaptively mounted at the clamping ring groove 15, the mounting disc 12 and the clamping disc 13 are fixedly connected by screws, so that the mounting disc 12, the clamping disc 13, the coarse grinding wheel 3 and the fine grinding wheel 4 are connected into an integrated whole.

[0041] A circular truncated cone-shaped mounting hole 16 is arranged on the mounting disc 12, and a positioning head 17 in a circular truncated cone shape is arranged at the end of the rotating head 1. The positioning head 17 and the mounting hole 16 are adaptively connected, the end of the positioning head 17 is tightly connected with a pressing plate 18, and the pressing plate 18 is tightly pressed on the mounting disc 12. A T-shaped recessed groove 19 is arranged on the mounting disc 12, the pressing plate 18 is arranged in the recessed groove 19, and the pressing plate 18 is tightly connected with the positioning head 17 through a screw. When the grinding head 2 is connected with the rotating head 1, the mounting hole 16 on the mounting disc 12 is adaptively connected with the positioning head 17 on the rotating head 1, and the circular truncated cone-shaped mounting hole 16 and the positioning head 17 not only realize tight connection in the process of tight connection of the pressing plate 18, but also realize deviation correction, so as to ensure coaxiality after connection. A positioning groove 20 is arranged on the mounting disc 12, and a positioning protruding ring 21 is arranged on the rotating head 1. The positioning protruding ring 21 and the positioning groove 20 are both in a square frame structure, and the positioning protruding ring 21 and the positioning groove 20 are adaptively inserted and connected.

[0042] A positioning piston cylinder 22 is arranged on the mounting seat 8, an extension rod of the positioning piston cylinder 22 is connected with a positioning seat 23, and a rotating positioning rotating column 24 is arranged on the positioning seat 23. The positioning rotating column 24 is rotatably arranged on the positioning seat 23 through a bearing, and an axis of the positioning rotating column 24 is parallel to an axis of the rotating head 1. After the linear guide rail is arranged on the workbench, the whole grinding head 2 device is moved downward, the extension rod of the positioning piston cylinder 22 is extended outward, the positioning rotating column 24 on the positioning seat 23 is extended to the periphery of the grinding head 2 and is in contact with the outer side of the linear guide rail, then the whole grinding head 2 device is moved along the length direction of the linear guide rail, the linear guide rail is corrected, the accuracy of the loading position of the linear guide rail is ensured, and then the grinding precision is ensured. Then the extension rod of the positioning piston cylinder 22 is reset.

[0043] During the linear guide rail grinding process, the rotating head 1 rotates to drive the coarse grinding wheel 3 and the fine grinding wheel 4 to rotate. First, the grinding surface 5 on the coarse grinding wheel 3 is in contact with the surface of the linear guide rail to perform coarse grinding. After coarse grinding is completed, the position of the rotating head 1 is directly axially moved, so that the grinding surface 5 on the fine grinding wheel 4 is in contact with the surface of the linear guide rail to perform fine grinding. When switching from coarse grinding to fine grinding, the grinding wheel can be directly switched, without the need for dressing the grinding wheel. The coarse grinding wheel 3 and the fine grinding wheel 4 are axially spaced apart, so as to ensure that the fine grinding wheel 4 interferes with the linear guide rail during coarse grinding and that the coarse grinding wheel 3 interferes with the linear guide rail during fine grinding.

[0044] Embodiment 2: a double-grinding-wheel grinding head connecting structure (see Figure 1 、 Figure 3 、 Figure 4 ), comprising a rotating head 1 and a grinding head 2, the rotating head 1 and the grinding head 2 are coaxially arranged, the grinding head 2 is arranged on the rotating head 1, and the grinding head 2 is detachably connected with the rotating head 1. The coarse grinding wheel 3 and the fine grinding wheel 4 are arranged on the grinding head 2 to form a double-grinding-wheel structure, the coarse grinding wheel 3 and the fine grinding wheel 4 are axially spaced apart, and the outer edges of the coarse grinding wheel 3 and the fine grinding wheel 4 are both provided with grinding surfaces 5.

[0045] The outer edge of the coarse grinding wheel 3 and the fine grinding wheel 4 is provided with a trimming ring 6 in the shape of a trapezoid in cross section, the trimming ring 6 comprises an upper inclined surface and a lower inclined surface, the upper inclined surface and the lower inclined surface are symmetrically arranged, a grinding surface 5 is arranged between the upper inclined surface and the lower inclined surface, and the thickness of the trimming ring 6 gradually decreases radially outward. The grit size of the grinding surface 5 on the coarse grinding wheel 3 is greater than the grit size of the grinding surface 5 on the fine grinding wheel 4. The trimming ring 6 is in the shape of a trapezoid in cross section, which is beneficial to chip removal and heat dissipation during grinding. The thickness of the trimming ring 6 gradually decreases radially outward, which ensures the strength of the position of the grinding surface 5.

[0046] An adjusting disc 25 is arranged between the coarse grinding wheel 3 and the fine grinding wheel 4, and the axial spacing of the coarse grinding wheel 3 and the fine grinding wheel 4 is adjusted by replacing the adjusting disc 25 with different thicknesses. The outer edge of the adjusting disc 25 is provided with a convex ring 26, an annular boss is arranged at the inner ring of the fine grinding wheel 4, and an annular groove is arranged at the inner ring of the coarse grinding wheel 3, the inner wall of the convex ring 26 is adapted to the outer wall of the annular boss, and the outer wall of the convex ring 26 is adapted to the inner wall of the annular groove. The adjusting disc 25 can adjust the axial spacing of the coarse grinding wheel 3 and the fine grinding wheel 4 to adapt to the grinding operation of linear guide rails of different sizes, which is flexible and convenient. The edges of the grinding wheels are trimmed to form grinding surfaces 5 on the outer edges of the coarse grinding wheel 3 and the fine grinding wheel 4, which are used for coarse grinding and fine grinding, respectively.

[0047] The rotating head 1 is connected to the output shaft of the servo motor 7. The servo motor 7 drives the rotating head 1 to rotate, which is convenient for controlling the rotating speed. The rotating head 1 is correspondingly provided with a mounting seat 8, and the rotating head 1 is rotatably mounted on the mounting seat 8. The servo motor 7 is mounted at one end of the mounting seat 8, and the mounting seat 8 is provided with a connecting hole, the rotating head 1 is rotatably connected to the connecting hole, and the end of the rotating head 1 extends out of the connecting hole.

[0048] The side wall of the mounting seat 8 is fixedly connected with a connecting plate 9, and a plurality of fastening holes are arranged on the connecting plate 9, which is convenient for fastening the mounting seat 8 to the grinding machine. The end of the servo motor 7 is provided with a connecting disc 10, the connecting disc 10 is fixedly connected to the end of the mounting seat 8, a fastening strip 11 is arranged on the outer wall of the servo motor 7, and the fastening strip 11 is fixedly connected to the grinding machine, thereby improving the stability of the connection of the servo motor 7.

[0049] The grinding head 2 comprises a mounting disc 12 and a clamping disc 13, and the coarse grinding wheel 3 and the fine grinding wheel 4 are clamped and mounted between the mounting disc 12 and the clamping disc 13. The edges of the opposite surfaces of the mounting disc 12 and the clamping disc 13 are respectively provided with a mounting ring groove 14 and a clamping ring groove 15, the inner edge of the fine grinding wheel 4 is adapted to be mounted at the mounting ring groove 14, and the inner edge of the coarse grinding wheel 3 is adapted to be mounted at the clamping ring groove 15. The mounting disc 12 and the clamping disc 13 are fixedly connected by screws, so that the mounting disc 12, the clamping disc 13, the coarse grinding wheel 3 and the fine grinding wheel 4 are connected as a whole.

[0050] A circular table-shaped mounting hole 16 is arranged on the mounting disc 12, and a circular table-shaped positioning head 17 is arranged at the end of the rotating head 1. The positioning head 17 and the mounting hole 16 are adaptively connected, the end of the positioning head 17 is tightly connected with a pressing plate 18, and the pressing plate 18 is tightly pressed on the mounting disc 12. A T-shaped recessed groove 19 is arranged on the mounting disc 12, the pressing plate 18 is arranged in the recessed groove 19, and the pressing plate 18 is tightly connected with the positioning head 17 through a screw. When the grinding head 2 is connected with the rotating head 1, the mounting hole 16 on the mounting disc 12 is adaptively connected with the positioning head 17 on the rotating head 1, and the circular table-shaped mounting hole 16 and the positioning head 17 not only realize tight connection in the process of tight connection of the pressing plate 18, but also realize deviation correction, so as to ensure coaxiality after connection. A positioning groove 20 is arranged on the mounting disc 12, and a positioning protruding ring 21 is arranged on the rotating head 1. The positioning protruding ring 21 and the positioning groove 20 are both in square frame-shaped structure, and the positioning protruding ring 21 and the positioning groove 20 are adaptively inserted and connected.

[0051] A positioning piston cylinder 22 is arranged on the mounting seat 8, an extension rod of the positioning piston cylinder 22 is connected with a positioning seat 23, and a rotating positioning rotating column 24 is arranged on the positioning seat 23. The positioning rotating column 24 is rotatably arranged on the positioning seat 23 through a bearing, and an axis of the positioning rotating column 24 is parallel to an axis of the rotating head 1. After the linear guide rail is arranged on the workbench, the whole grinding head 2 device is moved downward, the extension rod of the positioning piston cylinder 22 is extended outward, the positioning rotating column 24 on the positioning seat 23 is extended to the periphery of the grinding head 2 and is in contact with the outer side of the linear guide rail, then the whole grinding head 2 device is moved along the length direction of the linear guide rail, the linear guide rail is corrected, the accuracy of the loading position of the linear guide rail is ensured, and then the grinding precision is ensured. Then the extension rod of the positioning piston cylinder 22 is reset.

[0052] During the linear guide rail grinding process, the rotating head 1 rotates to drive the rough grinding wheel 3 and the fine grinding wheel 4 to rotate. First, the grinding surface 5 on the rough grinding wheel 3 is in contact with the surface of the linear guide rail to perform rough grinding. After rough grinding is completed, the position of the rotating head 1 is directly axially moved, so that the grinding surface 5 on the fine grinding wheel 4 is in contact with the surface of the linear guide rail to perform fine grinding. When the rough grinding is switched to fine grinding, the grinding wheel is directly switched, and the grinding wheel does not need to be modified. The rough grinding wheel 3 and the fine grinding wheel 4 are axially spaced apart, so that the fine grinding wheel 4 does not interfere with the linear guide rail during rough grinding, and the rough grinding wheel 3 does not interfere with the linear guide rail during fine grinding.

[0053] Embodiment 3: a double-grinding-wheel grinding head connecting structure (see Figure 2 、 Figure 5 、 Figure 6 ), which is similar to that in Embodiment 1, and the main difference is that the connecting seat 27 extending outward is arranged on the mounting seat 8 in this embodiment, the positioning block 28 is arranged on the connecting seat 27, and the positioning block 28 is arranged at the periphery of the grinding head 2. The other structures are the same as those in Embodiment 1.

[0054] After the linear guide rail is installed to the workbench, the whole grinding head 2 device is moved downward, the positioning block 28 is contacted with the outer side of the linear guide rail, then the whole grinding head 2 device is moved along the length direction of the linear guide rail, the linear guide rail is rectified, the accuracy of the loading position of the linear guide rail is ensured, and then the grinding precision is ensured.

[0055] Many times, the grinding head 2 is installed on both sides of the linear guide rail, the two grinding heads 2 simultaneously grind the two sides of the linear guide rail, at this time, the positioning piston cylinder 22 is arranged on one grinding head 2, and the connecting seat 27 is arranged on the other grinding head 2. When rectifying, the linear guide rail is clamped between the positioning block 28 and the positioning rotating column 24, and the rectification is more accurate and reliable.

[0056] Embodiment 4: a double-sand-wheel grinding head connecting structure (see Figure 3 、 Figure 5 、 Figure 6 ), which is similar to the structure of Embodiment 2, and the main difference is that the connecting seat 27 extending outward is arranged on the mounting seat 8 in this embodiment, the positioning block 28 is arranged on the connecting seat 27, and the positioning block 28 is arranged on the periphery of the grinding head 2. The other structures are the same as those of Embodiment 2.

[0057] After the linear guide rail is installed to the workbench, the whole grinding head 2 device is moved downward, the positioning block 28 is contacted with the outer side of the linear guide rail, then the whole grinding head 2 device is moved along the length direction of the linear guide rail, the linear guide rail is rectified, the accuracy of the loading position of the linear guide rail is ensured, and then the grinding precision is ensured.

[0058] Many times, the grinding head 2 is installed on both sides of the linear guide rail, the two grinding heads 2 simultaneously grind the two sides of the linear guide rail, at this time, the positioning piston cylinder 22 is arranged on one grinding head 2, and the connecting seat 27 is arranged on the other grinding head 2. When rectifying, the linear guide rail is clamped between the positioning block 28 and the positioning rotating column 24, and the rectification is more accurate and reliable.

[0059] The above-described embodiments are only the preferred schemes of the present application, and do not limit the present application in any form, and other variants and modifications can be made without exceeding the technical schemes recorded in the claims.

Claims

1. A double grinding wheel head connecting structure, characterized by, The grinding head is installed on the rotating head, and a rough grinding wheel and a fine grinding wheel are installed on the grinding head to form a double-wheel structure, the rough grinding wheel and the fine grinding wheel are arranged axially in a spaced manner, and the outer edges of the rough grinding wheel and the fine grinding wheel are provided with grinding surfaces.

2. The connecting structure of the double grinding head according to claim 1, wherein, The outer edges of the rough grinding wheel and the fine grinding wheel are provided with trimming rings with a trapezoidal cross section, the trimming ring comprises an upper inclined surface and a lower inclined surface, a grinding surface is arranged between the upper inclined surface and the lower inclined surface, and the thickness of the trimming ring gradually decreases radially outward.

3. The connecting structure of the double grinding head according to claim 1, characterized in that, The rotating head is connected with an output shaft of a servo motor.

4. The connecting structure of the double grinding head according to claim 1, wherein, The rotating head is correspondingly provided with a mounting seat, and the rotating head is rotatably installed on the mounting seat.

5. The connecting structure of a double grinding head according to claim 4, wherein A positioning piston cylinder is installed on the mounting seat, an extension rod of the positioning piston cylinder is connected with a positioning seat, and a positioning rotating column arranged in a rotating manner is installed on the positioning seat.

6. The connecting structure of a double grinding head according to claim 4, wherein An outwardly extending connecting seat is installed on the mounting seat, a positioning block is installed on the connecting seat, and the positioning block is arranged on the periphery of the grinding head.

7. The connecting structure of the double grinding head according to claim 1, characterized in that, The grinding head comprises a mounting disc and a clamping disc, and the rough grinding wheel and the fine grinding wheel are clamped and installed between the mounting disc and the clamping disc.

8. The connecting structure of a double grinding head according to claim 7, wherein A circular table-shaped mounting hole is arranged on the mounting disc, a circular table-shaped positioning head is arranged at the end of the rotating head, the positioning head and the mounting hole are adaptively connected, a pressing plate is tightly connected to the end of the positioning head, and the pressing plate is pressed on the mounting disc.

9. The dual grinding head attachment structure of claim 7, wherein, A positioning groove is arranged on the mounting disc, and a positioning convex ring is arranged on the rotating head, the positioning convex ring and the positioning groove are adaptively inserted.

10. The connecting structure of a double grinding head according to any one of claims 1 to 9, characterized in that, An adjusting disc is installed between the rough grinding wheel and the fine grinding wheel, and the axial spacing of the rough grinding wheel and the fine grinding wheel is adjusted by replacing adjusting discs with different thicknesses.

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