High-precision grinding wheel arc dresser for internal grinding machine and use method of high-precision grinding wheel arc dresser

Abstract

The invention discloses a high-precision grinding wheel arc dresser for an internal grinding machine and a using method thereof, and belongs to the technical field of dressers. The upper end of the mounting base is connected with the horizontal portion of the fixed outer frame, the rotary inner frame is arranged in the fixed outer frame and hinged to the fixed outer frame through a rotary shaft, and the middle of the rotary inner frame is connected with the diamond pen. The outer sides of the rotating shafts are sleeved with torsional springs, one ends of the torsional springs are connected with the rotating inner frame, the other ends of the torsional springs are connected with the fixed outer frame, studs are coaxially fixed to the outer ends of the rotating shafts and are in threaded connection with the fixed outer frame, and the inner ends of the studs abut against the torsional springs. According to the invention, the influence of the randomness of manual operation on the precision is eliminated, the finishing period is shortened, the consistency of multi-batch processing is improved, and a common operator can efficiently finish the precision finishing operation without professional skills. The limitation of a traditional process is broken through from three dimensions of a mechanical structure, an adjusting mechanism and man-machine interaction, and an innovative tool which is intelligent, efficient and easy to use is provided for the field of precision machining.

Description

Technical Field

[0001] The invention relates to a high-precision grinding wheel arc dresser for an internal grinding machine and a use method thereof, belonging to the technical field of dressers. Background Art

[0002] In the existing field of internal grinding technology, the grinding process for inner spherical workpieces mainly adopts the geometric forming process, the core principle of which is to trim the grinding wheel into a spherical shape that completely matches the target surface, and rely on the grinding wheel contour to realize the workpiece surface forming. This process has the following technical defects:

[0003] 1. The traditional dressing method is highly dependent on manual dressing process. The operator needs to dress the grinding wheel point by point through a mechanical clamping device. The dressing accuracy is directly restricted by the operator's skill level, which makes it difficult to popularize and apply this process in industrial production.

[0004] 2. There is a significant efficiency bottleneck in the manual finishing process. The finishing of a single piece takes a long time and it is difficult to ensure the surface consistency of multiple batches of finishing results.

[0005] 3. Affected by the randomness of manual operation, the surface of the grinding wheel after dressing can only be approximately close to the ideal spherical surface, which is difficult to meet the technical requirements of micron-level contour accuracy in the field of precision machining.

[0006] Therefore, there is an urgent need for a grinding wheel dresser that is easy to operate, efficient and accurate, so as to improve the efficiency and accuracy of dressing the spherical grinding wheel and reduce the difficulty of the operation, so that ordinary operators can perform the operation. Summary of the invention

[0007] In order to solve the problems existing in the background technology, the present invention provides a high-precision grinding wheel arc dresser for an internal cylindrical grinder and a use method thereof.

[0008] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a high-precision grinding wheel arc dresser for an internal cylindrical grinder, comprising screw two, screw one, a rotating inner frame, a fixed outer frame, a mounting seat and a diamond pen; the upper end of the mounting seat is fixedly connected to the horizontal part of the fixed outer frame of the U-shaped structure by screw one, a rotating inner frame of the U-shaped structure is installed inside the fixed outer frame, two vertical parts of the rotating inner frame are hinged to two vertical parts of the fixed outer frame by corresponding rotating axes, and the middle part of the rotating inner frame is fixedly connected to the diamond pen by screw two.

[0009] The middle part of the rotating inner frame is fixedly connected to the adjusting mechanism through screw three, and the adjusting mechanism is used in conjunction with the diamond pen.

[0010] The adjustment mechanism includes a depth micrometer and a micrometer mounting seat; a depth micrometer is mounted on one end of the micrometer mounting seat, and the other end of the micrometer mounting seat is fixedly connected to the middle part of the rotating inner frame by screw three.

[0011] A handle is installed on the side wall of the rotating inner frame.

[0012] Both ends of the mounting seat are provided with waist-shaped holes, each of the waist-shaped holes is installed with a screw, and the mounting seat is fixedly connected to the fixed outer frame by the screw.

[0013] A torsion spring is mounted on the outer side of each rotating shaft, one end of each torsion spring is fixedly connected to the vertical part corresponding to the rotating inner frame, and the other end of each torsion spring is fixedly connected to the vertical part corresponding to the fixed outer frame. A stud is coaxially fixed to the outer end of each rotating shaft, each stud is respectively threadedly screwed to the vertical part corresponding to the fixed outer frame, and the inner end of each stud rests on the corresponding torsion spring.

[0014] A method for using a high-precision grinding wheel arc dresser for an internal grinding machine of the present invention comprises the following steps:

[0015] S1: Connect the dresser to the machine tool through the mounting base to ensure the stability of the overall structure;

[0016] S2: Loosen screw 1, move the fixed outer frame longitudinally along the waist-shaped hole of the mounting seat, drive the rotating inner frame and the diamond pen to adjust their positions synchronously; after confirming that the tip of the diamond pen and the rotation center of the grinding wheel are at the same horizontal height, tighten screw 1 to lock the position;

[0017] S3: Fix the adjustment mechanism to the middle of the rotating inner frame by screw three; operate the depth micrometer to adjust the radial extension of the diamond pen according to the target grinding wheel arc radius to ensure the dressing size accuracy; lock the final positioning of the diamond pen by screw two;

[0018] S4: Remove the adjustment mechanism to free up operating space;

[0019] S5: Turn the handle on the side wall of the rotating inner frame to drive the diamond pen to dress the grinding wheel according to the set trajectory;

[0020] S6: After trimming is completed, release the handle and the rotating inner frame will automatically return to the initial angle under the action of the torsion spring.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention realizes quantitative control of the trimming size through precise adjustment of the depth micrometer, completely eliminates the influence of randomness of manual operation on precision, and makes the contour accuracy of the grinding wheel surface reach the micron level; the two-level adjustment structure combining the coarse adjustment of the waist hole and the fine adjustment of the rotating inner frame is adopted, and the elastic self-reset device is used to significantly shorten the trimming cycle and improve the consistency of multi-batch processing; the visual adjustment mechanism and the humanized handle design form a collaborative operation chain, so that ordinary operators can efficiently complete the precision trimming operation without professional skills. It breaks through the limitations of traditional processes from the three dimensions of mechanical structure, adjustment mechanism and human-computer interaction, and provides an innovative tool that is both intelligent, efficient and easy to use for the field of precision processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 yes Figure 1 Rear view of

[0025] Figure 3 It is a schematic diagram of the installation position of the torsion spring and the stud;

[0026] Figure 4 yes Figure 3 Enlarged view of point A. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] A high-precision grinding wheel arc dresser for an internal cylindrical grinder comprises screws 23, screws 14, a rotating inner frame 5, a fixed outer frame 6, a mounting seat 7 and a diamond pen 8; the upper end of the mounting seat 7 is fixedly connected to the horizontal portion of the fixed outer frame 6 of a U-shaped structure by screws 14, a rotating inner frame 5 of a U-shaped structure is installed inside the fixed outer frame 6, two vertical portions of the rotating inner frame 5 are hinged to two vertical portions of the fixed outer frame 6 in a one-to-one correspondence through corresponding rotating shafts 14, and the middle portion of the rotating inner frame 5 is fixedly connected to the diamond pen 8 by screws 23.

[0029] The middle part of the rotating inner frame 5 is fixedly connected to the adjustment mechanism 13 through a screw 3 9. The adjustment mechanism 13 is used in conjunction with the diamond pen 8. The adjustment mechanism 13 is used to accurately adjust the trimming size of the trimmer.

[0030] The adjustment mechanism 13 includes a depth micrometer 1 and a micrometer mounting seat 2; the depth micrometer 1 is mounted on one end of the micrometer mounting seat 2, and the other end of the micrometer mounting seat 2 is fixedly connected to the middle of the rotating inner frame 5 by screw three 9.

[0031] A handle 12 is installed on the side wall of the rotating inner frame 5 .

[0032] Both ends of the mounting seat 7 are provided with waist-shaped holes, each of which is installed with a screw 4. The mounting seat 7 is fixedly connected to the fixed outer frame 6 by screws 4. The waist-shaped holes facilitate the adjustment of the position of the fixed outer frame 6, drive the rotating inner frame 5 and the diamond pen 8 to move, and ensure that the diamond pen 8 is aligned with the height of the rotation center of the grinding wheel.

[0033] A torsion spring 10 is mounted on the outer side of each rotating shaft 14, one end of each torsion spring 10 is fixedly connected to the vertical portion corresponding to the rotating inner frame 5, and the other end of each torsion spring 10 is fixedly connected to the vertical portion corresponding to the fixed outer frame 6, and a stud 11 is coaxially fixed to the outer end of each rotating shaft 14, each stud 11 is respectively threadedly screwed to the vertical portion corresponding to the fixed outer frame 6, and the inner end of each stud 11 rests on the corresponding torsion spring 10.

[0034] A method for using a high-precision grinding wheel arc dresser for an internal grinding machine of the present invention comprises the following steps:

[0035] S1: Connect the dresser to the machine tool through the mounting base 7 to ensure the stability of the overall structure;

[0036] S2: Loosen screw 1 4, move the fixed outer frame 6 longitudinally along the waist-shaped hole of the mounting seat 7, drive the rotating inner frame 5 and the diamond pen 8 to adjust their positions synchronously; after confirming that the tip of the diamond pen 8 and the rotation center of the grinding wheel are at the same horizontal height, tighten screw 1 4 to lock the position;

[0037] S3: Fix the adjustment mechanism 13 to the middle of the rotating inner frame 5 by screw three 9; operate the depth micrometer 1 to adjust the radial extension of the diamond pen 8 according to the target grinding wheel arc radius to ensure the trimming dimensional accuracy; lock the final positioning of the diamond pen 8 by screw two 3;

[0038] S4: removing the adjustment mechanism 13 to release operating space;

[0039] S5: Pull the handle 12 on the side wall of the rotating inner frame 5 to drive the diamond pen 8 to dress the grinding wheel according to the set trajectory;

[0040] S6: After the trimming is completed, the handle 12 is released, and the rotating inner frame 5 is automatically reset to the initial angle under the action of the torsion spring 10.

[0041] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations within the meaning and range of equivalents of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0042] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A high-precision grinding wheel arc dresser for an internal grinding machine, characterized in that: The invention comprises screw 2 (3), screw 1 (4), a rotating inner frame (5), a fixed outer frame (6), a mounting seat (7) and a diamond pen (8); the upper end of the mounting seat (7) is fixedly connected to the horizontal part of the fixed outer frame (6) of the U-shaped structure by screw 1 (4); the rotating inner frame (5) of the U-shaped structure is installed inside the fixed outer frame (6); the two vertical parts of the rotating inner frame (5) and the two vertical parts of the fixed outer frame (6) are hinged one by one through corresponding rotating shafts (14); the middle part of the rotating inner frame (5) is fixedly connected to the diamond pen (8) by screw 2 (3).

2. The high-precision grinding wheel arc dresser for an internal grinding machine according to claim 1, characterized in that: The middle part of the rotating inner frame (5) is fixedly connected to the adjusting mechanism (13) through screw three (9), and the adjusting mechanism (13) is used in conjunction with the diamond pen (8).

3. The high-precision grinding wheel arc dresser for an internal grinding machine according to claim 2, characterized in that: The adjustment mechanism (13) comprises a depth micrometer (1) and a micrometer mounting seat (2); one end of the micrometer mounting seat (2) is mounted with the depth micrometer (1), and the other end of the micrometer mounting seat (2) is fixedly connected to the middle part of the rotating inner frame (5) via a screw three (9).

4. The high-precision grinding wheel arc dresser for an internal grinding machine according to claim 1, characterized in that: A handle (12) is installed on the side wall of the rotating inner frame (5).

5. The high-precision grinding wheel arc dresser for an internal grinding machine according to claim 1, characterized in that: Both ends of the mounting seat (7) are provided with waist-shaped holes, and a screw (4) is installed in each waist-shaped hole. The mounting seat (7) and the fixed outer frame (6) are fixedly connected by the screw (4).

6. The high-precision grinding wheel arc dresser for an internal grinding machine according to claim 1, characterized in that: A torsion spring (10) is mounted on the outer side of each rotating shaft (14); one end of each torsion spring (10) is fixedly connected to a vertical portion corresponding to the rotating inner frame (5); the other end of each torsion spring (10) is fixedly connected to a vertical portion corresponding to the fixed outer frame (6); a stud (11) is coaxially fixed to the outer end of each rotating shaft (14); each stud (11) is respectively threadedly screwed to a vertical portion corresponding to the fixed outer frame (6); and the inner end of each stud (11) is respectively pressed against the corresponding torsion spring (10).

7. A method for using the high-precision grinding wheel arc dresser for an internal grinding machine according to any one of claims 1 to 6, characterized in that: The method comprises the following steps: S1: Connect the dresser to the machine tool through the mounting base (7) to ensure the stability of the overall structure; S2: Loosen screw one (4), move the fixed outer frame (6) longitudinally along the waist-shaped hole of the mounting seat (7), drive the rotating inner frame (5) and the diamond pen (8) to adjust their positions synchronously; after confirming that the tip of the diamond pen (8) and the rotation center of the grinding wheel are at the same horizontal height, tighten screw one (4) to lock the position; S3: fix the adjustment mechanism (13) to the middle of the rotating inner frame (5) by screw three (9); operate the depth micrometer (1) to adjust the radial extension of the diamond pen (8) according to the target grinding wheel arc radius to ensure the trimming dimensional accuracy; lock the final positioning of the diamond pen (8) by screw two (3); S4: removing the adjustment mechanism (13) to free up operating space; S5: Pull the handle (12) on the side wall of the rotating inner frame (5) to drive the diamond pen (8) to trim the grinding wheel according to the set trajectory; S6: After trimming is completed, the handle (12) is released, and the rotating inner frame (5) is automatically reset to the initial angle under the action of the torsion spring (10).

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