Headstock capable of finely adjusting angle

Abstract

The utility model provides a headstock with an angle capable of being finely adjusted, and belongs to the field of machine tool accessories. The problem that angle adjustment of an existing headstock is time-consuming and labor-consuming is solved. The headstock capable of finely adjusting the angle comprises a headstock base body, a base and an angle adjusting mechanism, a positioning locking mechanism is arranged on the base, the angle adjusting mechanism comprises a positioning table, an adjusting assembly and a fine adjusting assembly, the headstock base is movably installed on the positioning table, the central axis of the headstock base body coincides with the central axis of the positioning table, and a scale sheet is arranged on the outer edge of the positioning table. The adjusting assembly comprises an adjusting fixing part, an elastic part and an open groove, a movable cavity is formed in the side edge of the headstock base body and communicated with the open groove, the cross section of the adjusting fixing part is of a T-shaped structure, one end of the adjusting fixing part is movably installed in the movable cavity, and the other end of the adjusting fixing part penetrates through the open groove to be matched with the fine adjusting assembly. The fine adjustment assembly comprises an adjustment side block, two positioning blocks and an adjustment screw. The angle adjusting device has the advantage of being accurate in angle adjustment.

Description

Technical Field

[0001] The utility model belongs to the field of machine tool accessories and relates to a headstock, in particular to a headstock capable of fine-adjusting an angle. Background Art

[0002] With the continuous advancement of social science and technology, more and more parts need to be ground with spiral grooves. However, since the spiral grooves are distributed at different angles on the parts, how to make the generatrix of the grinding wheel match the helical angle of the workpiece is an important problem to be solved. Traditionally, the generatrix of the grinding wheel can only be matched with the helical angle of the part by adjusting the angle of the fixture or the grinding head frame. The existing grinding head frame angle adjustment can only be adjusted at a large angle, and there is still a small error with the helical angle of the part. This not only affects the processing and production quality, is time-consuming and labor-intensive, but also greatly increases the production and investment costs, and easily causes the inclination of the spiral groove of the workpiece to be out of tolerance. Summary of the Invention

[0003] The purpose of the present invention is to provide a headrest with fine-adjustable angle to solve the above problems in the prior art.

[0004] The purpose of the utility model can be achieved by the following technical solutions: A fine-angle adjustable head frame, characterized in that it includes a head frame base, a movable base, and an angle adjustment mechanism for adjusting the angle of the head frame base, and a positioning locking mechanism for positioning and locking the head frame is provided on the base;

[0005] The angle adjustment mechanism includes a positioning platform fixed on the base, an adjustment component capable of large angle adjustment, and a fine adjustment component for angle fine adjustment. The head frame base is movably mounted on the positioning platform.

[0006] The central axis of the head frame base coincides with the central axis of the positioning platform;

[0007] The outer edge of the positioning platform is provided with a scale piece for facilitating angle adjustment;

[0008] The adjustment assembly includes an axially movable adjustment fixing member, an elastic member that can be elastically reset, and an open slot formed on the head frame base. The side of the head frame base has an active cavity inside.

[0009] The movable cavity is connected to the open slot, and the cross section of the adjustment fixing member is T-shaped, one end of which is movably mounted inside the movable cavity, and the other end is inserted through the open slot to cooperate with the fine-tuning component, and the elastic member is located inside the movable cavity;

[0010] The fine-tuning assembly comprises an adjusting side block fixed on the base, two positioning blocks fixed on the adjusting side blocks, and an adjusting screw for fine-tuning the angle of the head frame base.

[0011] In the above-mentioned fine-angle adjustable head frame, the two positioning blocks are fixed at intervals on the adjustment side blocks, and the adjustment fixing member can move axially up and down along the side wall of the opening groove and realize downward elastic reset through the elastic member in the movable cavity.

[0012] In the above-mentioned fine-angle adjustable head frame, one end of the adjustment fixing member passes through the opening slot and between the two positioning blocks, and the angle is fine-tuned by the adjustment screw located on the positioning block.

[0013] In the above-mentioned head frame with fine-adjustable angle, the head frame base can be adjusted to a large angle through the adjustment component, and can be fine-tuned to a small angle through the fine-adjustment component.

[0014] In the above-mentioned fine-angle adjustable head frame, the head frame base is positioned and connected to the machine tool through a positioning and locking assembly. The positioning and locking assembly includes a positioning rod for positioning, a lockable locking claw, an elastically resettable disc spring, and a locking sleeve for locking and adjustment.

[0015] Compared with the existing technology, the structure design of the fine-adjustable angle head frame is reasonable. The head frame base is positioned and connected to the machine tool through a positioning and locking assembly structure. At the same time, the adjustment assembly and fine-tuning assembly structure design are utilized to make fine adjustments to the head frame base using the screws on the two positioning blocks, and the large angle adjustment is made by adjusting the fixing parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the head frame with fine-adjustable angle.

[0017] Figure 2 It is a partially cutaway three-dimensional structural schematic diagram of the head frame with fine-adjustable angle.

[0018] Figure 3 It is a schematic diagram of the partial cross-section structure of the head frame with fine-adjustable angle.

[0019] In the figure, 1. head frame base; 2. base; 3. positioning platform; 4. scale plate; 5. adjustment fixing piece; 6. elastic piece; 7. opening slot; 8. movable cavity; 9. adjustment side block; 10. positioning block; 11. screw; 12. positioning rod; 13. locking claw; 14. disc spring; 15. locking sleeve. DETAILED DESCRIPTION

[0020] 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.

[0021] like Figure 1 、 Figure 2 、 Figure 3As shown, the angle head frame can be finely adjusted, comprising a head frame base 1, a movable base 2, a positioning and locking mechanism for head frame positioning and locking installation, an angle adjustment mechanism for angle adjustment of the head frame base 1, the positioning and locking mechanism is arranged on the base 2, the angle adjustment mechanism comprises a positioning table 3 fixed on the base 2, an adjustment assembly for large angle adjustment, and a fine adjustment assembly for angle fine adjustment, the head frame base is movably installed on the positioning table 3, the center axis of the head frame base 1 coincides with the center axis of the positioning table 3, the positioning table 3 has a scale piece 4 at the outer edge for angle adjustment, the adjustment assembly comprises an adjustment fixing part 5 that can move axially, an elastic part 6 that can be elastically reset, and an opening slot 7 opened on the head frame base 1, the head frame base 1 has a movable cavity 8 inside the side, the movable cavity 8 is connected with the opening slot 7, the adjustment fixing part 5 is arranged in T-shaped structure in cross section, one end of which is movably installed inside the movable cavity 8, and the other end passes through the opening slot 7 and cooperates with the fine adjustment assembly, the elastic part 6 is located inside the movable cavity 8, the fine adjustment assembly comprises an adjustment side block 9 fixed on the base 2, two positioning blocks 10 fixed on the adjustment side block 9, and an adjustment screw 11 for angle fine adjustment of the head frame base 1.

[0022] The above structure design is reasonable, the head frame base 1 is connected to the machine tool through the positioning and locking assembly structure, at the same time, the adjustment assembly and the fine adjustment assembly structure design are used to make the head frame base 1 micro-adjusted by two positioning blocks 10 and screws 11, and the large angle adjustment is adjusted by the adjustment fixing part 5.

[0023] After large angle adjustment of the head frame base 1, small angle fine adjustment is realized by continuously adjusting the screw 11 to ensure the accuracy of angle adjustment.

[0024] Further, in order to facilitate the axial movement and large angle adjustment of the adjustment fixing part 5, the two positioning blocks 10 are fixed on the adjustment side block, the adjustment fixing part 5 can move axially up and down along the side wall of the opening slot 7, and is elastically reset downward through the elastic part 6 in the movable cavity 8, one end of the adjustment fixing part 5 passes through the opening slot 7 and penetrates between the two positioning blocks 10, and the angle is fine adjusted through the adjustment screw 11 on the positioning block 10.

[0025] Preferably, the head frame base 1 can be large angle adjusted through the adjustment assembly, and small angle fine adjusted through the fine adjustment assembly.

[0026] Preferably, the head frame base 1 is connected to the machine tool through the positioning and locking assembly, the positioning and locking assembly comprises a positioning rod 12 for positioning, a locking claw 13 that can be locked, a disc spring 14 that can be elastically reset, and a locking sleeve 15 for locking adjustment.

[0027] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0028] Although this article uses more terms, 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 utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A fine-adjustable angle head frame, characterized in that: It comprises a head frame base (1), a movable base (2), and an angle adjustment mechanism for adjusting the angle of the head frame base (1); the base (2) is provided with a positioning locking mechanism for positioning and locking the head frame; The angle adjustment mechanism comprises a positioning platform (3) fixed on the base (2), an adjustment component capable of large angle adjustment, and a fine adjustment component for angle fine adjustment, and the head frame base is movably mounted on the positioning platform (3); The central axis of the head frame base (1) coincides with the central axis of the positioning platform (3); The positioning platform (3) has a scale plate (4) at its outer edge for facilitating angle adjustment; The adjustment assembly comprises an axially movable adjustment fixing member (5), an elastic member (6) capable of elastic reset, and an opening slot (7) provided on a head frame base (1); a movable cavity (8) is provided inside a side edge of the head frame base (1); The movable cavity (8) is connected to the opening slot (7), and the cross section of the adjustment fixing member (5) is arranged in a T-shaped structure, one end of which is movably installed inside the movable cavity (8), and the other end is inserted into the opening slot (7) to cooperate with the fine adjustment component, and the elastic member (6) is located inside the movable cavity (8); The fine-tuning assembly comprises an adjustment side block (9) fixed on the base (2), two positioning blocks (10) fixed on the adjustment side block (9), and an adjustment screw (11) for fine-tuning the angle of the head frame base (1).

2. The fine-adjustable angle head frame according to claim 1, characterized in that: The two positioning blocks (10) are fixed on the adjustment side block at intervals, and the adjustment fixing member (5) can move axially up and down along the side wall of the opening groove (7) and realize downward elastic reset through the elastic member (6) in the movable cavity (8).

3. The fine-adjustable angle head frame according to claim 2, characterized in that: One end of the adjustment fixing member (5) passes through the opening slot (7) and between the two positioning blocks (10), and the angle is fine-tuned by the adjustment screw (11) located on the positioning block (10).

4. The fine-adjustable angle head frame according to claim 1, characterized in that: The head frame base (1) can be adjusted at a large angle by means of an adjustment component, and can be fine-tuned at a small angle by means of a fine-tuning component.

5. The fine-adjustable angle head frame according to claim 1, characterized in that: The head frame base (1) is positioned and connected to the machine tool via a positioning and locking assembly, wherein the positioning and locking assembly comprises a positioning rod (12) for positioning, a lockable locking claw (13), an elastically resettable disc spring (14), and a locking sleeve (15) for locking and adjusting.

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