Fine adjustment rotary mechanism for grinder headstock

Abstract

The utility model belongs to the field of grinding technology, concretely relates to a kind of fine adjustment rotating mechanism of grinder headstock;The mechanism adopts worm gear drive, turbine is fixed together with headstock body shell, worm body shell is fixed together with worm on fixed base plate, when using, rotate fine adjustment knob, make tailstock body shell rotate around pivot, obtain use angle;The utility model can be widely applied to the headstock adjusting mechanism in the field of grinding, while improving processing precision and efficiency, free operating personnel from heavy physical labor, promote grinder processing link to more automatic, more humanized direction development.

Description

Technical Field

[0001] This utility model belongs to the field of grinding technology, specifically relating to a fine-tuning rotation mechanism for a grinding machine headstock. Background Technology

[0002] In the long-term development of grinding technology, for the critical machining scenario of conical surface grinding of parts, it is necessary to adjust the rotation angle of the grinding headstock to meet the machining accuracy requirements. In traditional machining solutions, a single rotating shaft is usually set between the headstock housing and the fixed base plate, and the angle is adjusted by the operator manually pushing the housing.

[0003] However, this traditional structure has significant technical limitations: First, it is difficult to control the precision of manual adjustments, and the angle error is easily affected by subjective factors such as operating force and feel, making it difficult to consistently meet the requirements of high-precision processing; Second, it requires a very high level of technical expertise from operators, who need to have rich experience and precise operational control to reduce adjustment deviations, increasing personnel training costs and the difficulty of getting them on the job; Third, the adjustment process is cumbersome and inefficient, requiring operators to repeatedly try and calibrate, which is not only time-consuming but also requires continuous physical exertion, resulting in high labor intensity and low work efficiency, especially in batch processing scenarios where this problem is more prominent. Utility Model Content

[0004] The purpose of this invention is to provide a fine-tuning rotation mechanism for a grinding machine headstock. By means of a worm gear mechanism, the required grinding angle can be accurately adjusted during the headstock angle adjustment process. This design can be widely used in headstock adjustment mechanisms in the grinding field, improving processing accuracy and efficiency while freeing operators from heavy physical labor, and promoting the development of grinding machine processing towards a more automated and humanized direction.

[0005] The present invention adopts the following technical solution: A fine-tuning rotation mechanism for a grinding machine headstock includes a headstock housing, a fixed base plate, a worm housing, a worm wheel, a worm, an adjusting screw, and a fine-tuning knob. The head frame shell is mounted on a fixed base plate around a rotating axis; The worm gear is fixed to the bottom of the head frame shell and rotates around the pivot. The worm housing is mounted on the fixed base plate, and a worm is provided inside the worm housing; the worm has a threaded surface that meshes with the tooth surface of the worm wheel; The adjusting screw is located on the left side of the fixed base plate and is connected to the first spring; The fine-tuning knob is fixed to one end of the worm gear.

[0006] Furthermore, a pivot pin is provided in the circular hole at one end of the worm gear housing, and the worm gear housing rotates around the pivot pin.

[0007] Furthermore, the bottom surface of the worm gear housing is provided with a groove, and the fixed base plate is provided with a second spring installed in a hole, and a steel ball is provided on the second spring.

[0008] Furthermore, the transmission ratio between the worm and the worm wheel is 200:1.

[0009] Furthermore, the fine-tuning knob has 30 equally divided graduations. When the fine-tuning knob is turned one graduation, the worm gear rotates 360 / 30 degrees accordingly.

[0010] Furthermore, the head frame shell is provided with an angle scale; the angle scale is fixed to the bottom outer perimeter of the head frame shell; the middle position of the angle scale is the 0-degree mark, and 45 marks are evenly arranged on the left and right ends of the 0-degree mark.

[0011] Furthermore, a zero-point position indicator is provided on the fixed base plate.

[0012] The beneficial effects of this utility model are as follows: (1) The fine-tuning rotation mechanism provided by this utility model adopts a worm gear with a transmission ratio of 200:1, and is equipped with a fine-tuning knob with 30 equal division lines, and is matched with an angle scale and a zero point indicator to achieve high-precision adjustment and meet the high-precision grinding requirements. (2) The fine-tuning rotation mechanism provided by this utility model supports high-precision fine-tuning to meet the fine requirements of conical grinding of parts, and also supports manual fast rotation adjustment. It can be adapted to different processing rhythms and is applicable to various headstock adjustment scenarios in the grinding field. (3) The fine-tuning rotation mechanism provided by this utility model does not require the operator to have high experience. The angle can be precisely adjusted by the fine-tuning knob. It can also be disengaged from the worm gear and manually rotate the head frame quickly, reducing the time for repeated calibration, reducing labor intensity, and improving adjustment efficiency. Attached Figure Description

[0013] Figure 1 This is a reference diagram showing the usage state of the fine-tuning rotation mechanism of this utility model; Figure 2 This is a cross-sectional view of the worm gear meshing in this utility model; Figure 3 This is a schematic diagram showing the position of the steel ball and the groove when the worm gear meshes in this utility model; Figure 4 This is a cross-sectional view of the worm gear disengagement in this utility model; Figure 5 This is a schematic diagram showing the position of the steel ball and the groove when the worm gear disengages in this utility model; Figure 6 This is a schematic diagram of the angle scale in this utility model; Figure 7This is a structural schematic diagram of the zero-point position indicator in this utility model; Figure 8 This is a schematic diagram of the micro-adjustment knob in this utility model; Figure 9 This is a cross-sectional view of the fine-tuning knob in this utility model; Figure 10 This is a schematic diagram showing the installation positions of the angle scale and the zero-point position indicator in this utility model; In the diagram: 1. Head frame housing; 2. Fixed base plate; 3. Angle scale; 4. Zero point position indicator; 5. Fine adjustment knob; 6. Adjusting screw; 7. Worm housing; 8. Worm wheel; 9. Shaft; 10. Worm; 11. First spring; 12. Steel ball; 13. Groove; 14. Turning pin; 15. Rivet one; 16. Rivet two; 17. Set screw; 18. Second spring. Detailed Implementation

[0014] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0015] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The embodiments cannot be described in detail here, but the embodiments of the present invention are not limited to the following embodiments.

[0016] Example: A fine-tuning rotation mechanism for a grinding machine headstock, with a structure as described above. Figures 1-10 As shown, it includes a head frame housing 1, a fixed base plate 2, a worm housing 7, a worm wheel 8, a worm 10, an adjusting screw 6, and a fine-tuning knob 5; The head frame shell 1 is mounted on the fixed base plate 2 around the rotating shaft 9; the worm gear 8 is fixed to the bottom of the head frame shell 1 and rotates around the rotating shaft 9; the worm gear shell 7 is mounted on the fixed base plate 2. A worm 10 is provided inside the worm housing 7; the inner end of the worm 10 is rotatably connected to the inside of the worm housing 7 through a bushing; the outer end of the worm 10 is connected to the fine adjustment knob 5 through a set screw 17, and turning the fine adjustment knob 5 will drive the worm 10 to rotate together. Reference Figure 8 and Figure 9 As shown, the fine adjustment knob 5 has 30 equally divided graduations. When the fine adjustment knob 5 is rotated one graduation, the worm gear 10 rotates 360 / 30 degrees accordingly.

[0017] The worm 10 has a threaded surface that meshes with the tooth surface of the worm wheel 8. Their transmission ratio is 200:1, that is, when the worm 10 rotates one revolution (360 degrees), the worm wheel 8 rotates 360 / 200 degrees. From this conversion, it can be seen that when the fine adjustment knob 5 rotates one increment, the worm wheel 8 rotates 0.06 degrees.

[0018] The adjusting screw 6 is located on the left side of the fixed base plate 2 and abuts against the worm gear housing 7. The end of the adjusting screw 6 is fitted with a first spring 11. Specifically, the left side of the fixed base plate 2 has a through threaded hole. The adjusting screw 6 passes through the threaded hole and connects to the first spring 11. The other end of the first spring 11 abuts against the worm gear housing 7. That is, by adjusting the screw 6, the first spring 11 is always pressed against the worm gear housing 7, ensuring that the worm wheel 8 and the worm 10 can effectively mesh. Additionally, a pivot pin 14 is provided in the round hole at one end of the worm gear housing 7, allowing the worm gear housing 7 to rotate around the pivot pin 14; a groove 13 is provided on the bottom surface of the worm gear housing 7, and a second spring 18 is installed in the hole on the fixed base plate 2, with a steel ball 12 on the second spring 18; moving the fine adjustment knob 5 disengages the groove 13 on the worm gear housing 7 from the steel ball 12 (e.g., Figure 3 As shown, the first spring 11, under the action of the spring force, can cause the worm housing 7 to drive the worm 10 to rotate to the right around the pivot pin 14 until the worm 10 and the worm wheel 8 are properly engaged. The adjusting screw 6 can adjust the clamping force of the first spring 11. On the one hand, the spring force can effectively make the worm 10 and the worm wheel 8 effectively engage, and on the other hand, it will not automatically dislodge the steel ball 12 from the groove 13 of the worm housing 7.

[0019] In this embodiment, the head frame shell 1 is provided with an angle scale 3 (structure as follows). Figure 6 As shown), the angle scale 3 is made of hard aluminum and is fixed to the bottom outer periphery of the head frame shell 1 by rivet-15, and rotates together with the head frame shell 1; the middle position of the angle scale 3 is the 0 degree mark, and 45 marks are evenly arranged on the left and right sides of the 0 degree mark (adjacent marks are spaced 1 degree apart). The value on the right side represents the angle of clockwise rotation of the head frame shell 1, and the value on the left side represents the angle of counterclockwise rotation of the head frame shell 1.

[0020] The fixed base plate 2 is provided with a zero point position indicator 4 (such as...). Figure 7 As shown), it is also made of hard aluminum and has a vertical "zero point mark". It is fixed to the fixed base plate 2 by rivet 216 and its position is fixed, serving as a reference for angle reading. When the grinding headstock is in the initial state without rotation, it is necessary to ensure that the "zero point mark" on the zero point position indicator 4 is completely aligned with the 0-degree mark on the angle scale 3.

[0021] When the head frame shell 1 rotates around the pivot 9 relative to the fixed base plate 2, the value of the "zero point mark" in the middle of the zero point position indicator 4 and the corresponding mark on the angle scale 3 are the angle values ​​of the head frame shell 1 rotation.

[0022] The working principle of this utility model: In use, move the fine-tuning knob 5 to the right, and the worm housing 7 and worm 10 will rotate clockwise around the pivot pin 14, so that the worm 10 meshes with the worm wheel 8 (e.g., Figure 2 (As shown); Rotate the fine adjustment knob 5 to make the worm gear 10 rotate, which drives the worm wheel 8 and thus drives the head frame shell 1 to rotate. Directly read the scale value pointed to by the "zero point mark", which is the actual rotation angle of the head frame shell 1 relative to the initial position.

[0023] Alternatively, without using the fine-tuning mechanism, moving the fine-tuning knob 5 to the left causes the worm housing 7 and worm 10 to rotate to the left around the pivot pin 14, allowing the steel ball 12 to enter the groove 13 on the bottom surface of the worm housing 7 under the action of the second spring 18, thus disengaging the worm wheel 8 from the worm 10 (as shown). Figure 4 (State). This allows you to manually rotate the head frame shell 1 on the fixed base plate 2.

[0024] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A fine-tuning rotation mechanism for a grinding machine headstock, characterized in that, It includes a head frame housing (1), a fixed base plate (2), a worm housing (7), a worm wheel (8), a worm (10), an adjusting screw (6), and a fine-tuning knob (5); The head frame shell (1) is rotatably mounted on the fixed base plate (2) around the rotating shaft (9); The worm gear (8) is fixed to the bottom of the head frame shell (1) and rotates around the shaft (9); The worm housing (7) is mounted on the fixed base plate (2), and a worm (10) is provided inside the worm housing (7); the worm (10) is provided with a threaded surface that meshes with the tooth surface of the worm wheel (8); The adjusting screw (6) is located on the left side of the fixed base plate (2) and is connected to the first spring (11); The fine-tuning knob (5) is fixed to one end of the worm gear (10).

2. The fine-tuning rotation mechanism for a grinding machine headstock according to claim 1, characterized in that, A pivot pin (14) is provided in the round hole at one end of the worm gear housing (7), and the worm gear housing (7) rotates around the pivot pin (14).

3. The fine-tuning rotation mechanism for a grinding machine headstock according to claim 1, characterized in that, The bottom surface of the worm gear housing (7) is provided with a groove (13), and the fixed base plate (2) is provided with a second spring (18) installed in the hole, and the second spring (18) is provided with a steel ball (12).

4. The fine-tuning rotation mechanism for a grinding machine headstock according to claim 1, characterized in that, The transmission ratio between the worm (10) and the worm wheel (8) is 200:

1.

5. The fine-tuning rotation mechanism for a grinding machine headstock according to claim 1, characterized in that, The fine adjustment knob (5) has 30 equally divided grid lines. When the fine adjustment knob (5) is rotated one grid, the worm gear (10) rotates 360 / 30 degrees accordingly.

6. The fine-tuning rotation mechanism for a grinding machine headstock according to claim 1, characterized in that, An angle scale (3) is provided on the head frame shell (1); the angle scale (3) is fixed on the bottom outer periphery of the head frame shell (1); the middle position of the angle scale (3) is the 0-degree mark, and 45 marks are evenly arranged on the left and right ends of the 0-degree mark.

7. The fine-tuning rotation mechanism for a grinding machine headstock according to claim 1, characterized in that, The base plate (2) is equipped with a zero point position indicator (4).

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