CN209953940U - A tailstock for CNC gear grinding machine - Google Patents

Abstract

The utility model discloses a tailstock for a numerically controlled gear grinding machine, which comprises a base, an X-direction limit guide key, a top mechanism and a cylinder assembly. The utility model adopts the roller heavy-duty linear guide pair structure, which has good rigidity and stability, and can easily realize the precise adjustment of the upper busbar and the side busbar of the processing part; The size of the force can be adjusted according to the actual situation of the machined parts.

Description

A tailstock for CNC gear grinding machine

technical field

The utility model belongs to the field of machining, in particular to a tailstock for a numerically controlled gear grinding machine.

Background technique

The tailstock is one of the important parts of the CNC gear grinding machine. When the gear grinding machine grinds the workpiece, the gear grinding machine tailstock cooperates with the gear grinding head frame to support and center the workpiece. For modern CNC gear grinding machine tools, the requirements for machining accuracy and reducing the work intensity of adjusters are getting higher and higher. The fine-tuning device plays a vital role in the adjustment of geometric accuracy. If the coaxiality error is large, it will directly affect the gear accuracy of the workpiece. The traditional tailstock for gear grinding machine tools has no adjustment mechanism. It can only be fixed by grinding the large installation surface of the rear column and then fixing it with a positioning pin to ensure that the top rotation center of the tailstock and the rotation center of the table are concentric. However, due to the large-scale processing process The accuracy of the medium-sized machine tool will inevitably be lost. The traditional method must take out the positioning pin installed on the rear column and loosen the fixing screw, and re-calibrate the rotary geometric accuracy of the tailstock, which is time-consuming and laborious, and can not achieve fine-tuning effect.

SUMMARY OF THE INVENTION

In order to overcome the deficiencies of the prior art, the utility model provides a tailstock for a numerically controlled gear grinding machine.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a tailstock for a numerically controlled gear grinding machine, comprising a base, an X-direction limit guide key, a top mechanism and a cylinder assembly, and the X-direction limit guide key is provided with On the base, the X-direction limit guide key is provided with a through hole, the positioning nut is installed in the through hole, and the thread matching the positioning nut at the contact point between the positioning nut and the base is in the A limit cover plate parallel to the positioning nut is arranged beside the X-direction limit guide key. The limit cover plate is provided with a through hole coaxial with the threaded hole of the positioning nut. Adjusting bolts are arranged in the plate and the positioning nut, a linear guide seat is arranged on the upper surface of the X-direction limit guide key, and the limit cover is pressed against the linear guide seat; the linear guide seat is provided with a linear guide seat. The slider seat, the upper surface of the linear guide seat is provided with a groove, the groove is provided with a gear, the lower surface of the slider seat is provided with a groove corresponding to the linear guide seat, The groove of the block seat is provided with a rack meshing with the gear, the center of the gear is mounted with a rotating shaft, one end of the rotating shaft passes through the slider seat and is connected with the handle rod, and the linear guide seat is provided with A compression spring screw parallel to the rack, one end of the compression spring screw penetrates the linear guide seat and is connected with a round nut, a compression spring is installed on the outer surface of the compression spring screw, and one end of the compression spring is connected to the outer surface of the compression spring. The linear guide seat is in contact with the other end, and the other end is in contact with the round nut, and a rear sealing plate is fixed between the round nut and the slider seat; The top sliding seat is arranged on the upper surface of the sliding block seat and is parallel to the rack, the top is installed parallel to the top sliding seat and one end of the top is passing through the top sliding seat, the locking screw and the adjusting screw are respectively It is arranged at both ends of the top sliding seat; the cylinder assembly is fixed together with the linear guide seat through the rear sealing plate.

Preferably, the X-direction limit guide key is fixed on the base by a hexagon socket head screw, and the rotating shaft and the gear are fixed by a flat key.

Beneficial effects: Compared with the prior art, the utility model has the following advantages: the tailstock adopts the roller heavy-duty linear guide rail pair structure, which has good rigidity and stability, and can easily realize precise adjustment of the upper busbar and side of the machining parts. Busbar; the clamping of the machined parts by the top is realized by the compression spring, and the size of the spring force can be adjusted according to the actual situation of the machined parts.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present utility model;

Fig. 2 is the front view of the utility model

Fig. 3 is the top view of the utility model

Fig. 4 is A-A plane sectional view in Fig. 2;

Fig. 5 is the F-F cross-sectional view in Fig. 3;

Figure 6 is a schematic diagram of the top structure;

Fig. 7 is J-J plane sectional view in Fig. 3;

Among them, 1. Base, 2. X-direction limit guide key, 3. Linear guide seat, 4. Positioning nut, 5. Adjusting bolt, 6. Limiting cover, 7. Handle rod, 8. Slider seat, 9 , rack, 10, shaft, 11, flat key, 12, gear, 13, compression spring, 14, rear sealing plate, 15, cylinder assembly, 16, locking screw, 17, top sliding seat, 18, adjusting screw, 19, round nut, 20, top, 21, compression spring bolt.

Detailed ways

Below in conjunction with the accompanying drawings and specific embodiments, the present utility model will be further clarified. It should be understood that these embodiments are only used to illustrate the present utility model and are not intended to limit the scope of the present utility model. Modifications of various equivalent forms of the utility model fall within the scope defined by the appended claims of the present application.

As shown in Figure 1-7, a tailstock for a CNC gear grinding machine includes a base 1, an X-direction limit guide key 2, a top mechanism and a cylinder assembly 15; the X-direction limit guide key 2 is set on the base 1 On the upper side, the X-direction limit guide key 2 is provided with a through hole, the bottom surface of the through hole is provided with a thread, a positioning nut 4 is installed in the through hole, and a limit cover parallel to the positioning nut 4 is arranged beside the X-direction limit guide key 2 Plate 6, the limit cover plate 6 is provided with a through hole coaxial with the threaded hole of the positioning nut 4, the limit cover plate 6 and the positioning nut 4 are provided with adjustment bolts 5, on the X-direction limit guide key 2 There is a linear guide seat 3 on the surface, and the limit cover 6 is against the linear guide seat 3; the linear guide seat 3 is provided with a slider seat 8, the upper surface of the linear guide seat 3 is provided with a groove, and the groove is provided with a gear 12 , a groove corresponding to the linear guide seat 3 is arranged on the lower surface of the slider seat 8, a rack 9 meshing with the gear 12 is arranged in the groove of the slider seat 8, the gear 12 is centrally installed with the rotating shaft 10, and the One end passes through the slider seat 8 and is connected with the handle rod 7 , the linear guide seat 3 is provided with a compression spring screw 21 parallel to the rack 9 , and one end of the compression spring screw 21 penetrates the linear guide seat 3 and is connected with the round nut 19 , the compression spring 13 is installed on the outer surface of the compression spring screw 21, one end of the compression spring 13 is in contact with the linear guide seat 3, and the other end is in contact with the round nut 19, the compression spring 13 is always in a compressed state, the round nut 19 and the slider seat 8 A rear sealing plate 14 is fixed between the two, and a round nut 19 is used to adjust the elastic force of the compression spring 13; the top mechanism includes a top 20, a locking screw 16, a top sliding seat 17 and an adjusting screw 18, and the top sliding seat 17 is located in the sliding block seat. 8. The upper surface is parallel to the rack 9, the top 20 is installed parallel to the top slide 17 and one end of the top passes through the top slide 17. The locking screw 16 and the adjusting screw 18 are respectively arranged at both ends of the top slide, and are connected to the top slide. The seat 17 is in close contact. ; The cylinder assembly 15 is fixed together with the linear guide seat 3 through the rear sealing plate 14;

During use, since the position of the positioning nut 4 remains unchanged, when the adjusting bolt 5 is rotated inward, the adjusting bolt 5 will push the limit cover 6, and then push the linear guide seat 3 connected with the limit cover 6, and vice versa. When adjusting the bolt 5, the linear guide seat 3 can also be pulled, so that the overall structure of the linear guide seat can be fine-tuned and moved in the direction of the adjusting bolt 5 to adjust the side bus bar; It engages and is fixed on the slider seat 8 at the same time, so that the slider seat 8 can be driven to move in the direction of the rack 9, the compression spring 13 is always in contact with the slider seat 8, and the compression spring 13 is in a compressed state. When the handle lever is 7, under the action of the elastic force of the compression spring 13, the slider seat 8 will be pushed to the top direction, so as to ensure that the top 20 has a pressing effect on the processed parts; loosen the tightening screw 16 slightly, and adjust the direction according to the required Rotate the adjusting screw 18, so that the top sliding seat 17 can move along the direction of the adjusting screw 18 on the inclined surface of the sliding block seat 8 to adjust the upper bus bar. Fine-tuning effect with Y axis.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention may be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments are to be considered in all respects as exemplary and not restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is therefore intended that the All changes within the meaning and range of the required equivalents are embraced within the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims (2)

1. A tailstock for a CNC gear grinding machine, characterized in that it comprises a base (1), an X-direction limit guide key (2), a top mechanism and a cylinder assembly (15), The X-direction limit guide key (2) is arranged on the base (1), the X-direction limit guide key (2) is provided with a through hole, and a positioning nut (4) is installed in the through hole, The thread that matches the positioning nut (4) at the contact point between the positioning nut (4) and the base (1) is provided with a thread parallel to the positioning nut (4) next to the X-direction limit guide key (2). A limit cover plate (6), the limit cover plate (6) is provided with a through hole coaxial with the threaded hole of the positioning nut (4), and the limit cover plate (6) and the An adjustment bolt (5) is arranged in the positioning nut (4), a linear guide seat (3) is arranged on the upper surface of the X-direction limit guide key (2), and the limit cover plate (6) is pressed against the straight line Rail seat (3); The linear guide seat (3) is provided with a slider seat (8), a groove is formed on the upper surface of the linear guide seat (3), a gear (12) is arranged in the groove, and the slider is mounted on the sliding block. The lower surface of the seat (8) is provided with a groove corresponding to the linear guide seat (3), and a rack (9) meshing with the gear (12) is arranged in the groove of the slider seat (8). ), a rotating shaft (10) is installed in the center of the gear (12), one end of the rotating shaft (10) passes through the slider seat (8) and is connected with the handle rod (7), the linear guide seat (3) There is a compression spring screw (21) parallel to the rack (9), and one end of the compression spring screw (21) passes through the linear guide seat (3) and is connected with the round nut (19), so A compression spring (13) is installed on the outer surface of the compression spring screw (21), one end of the compression spring (13) is in contact with the linear guide seat (3), and the other end is in contact with the round nut (19). A rear sealing plate (14) is fixed between the round nut (19) and the slider seat (8); The top mechanism includes a top (20), a locking screw (16), a top sliding seat (17) and an adjusting screw (18), and the top sliding seat (17) is provided on the upper surface of the sliding block seat (8) And parallel to the rack (9), the top (20) is installed parallel to the top slide (17) and one end of the top slides out of the top slide (17), the locking screw (16) and the adjustment The screws (18) are respectively arranged at both ends of the top sliding seat (17); The cylinder assembly (15) is fixed to the linear guide seat (3) through the rear sealing plate (14). 2. The tailstock for a CNC gear grinding machine according to claim 1, characterized in that: the X-direction limit guide key (2) is fixed on the base (1) by a hexagon socket head screw, and the The rotating shaft (10) and the gear (12) are fixed by a flat key (11).

Images