CN204321229U - Gearbox protecgulum end face clamp for machining - Google Patents

Abstract

The utility model provides a clamp for processing the end face of the front cover of a gearbox, comprising: a three-jaw chuck fixedly connected with the main shaft of a machine tool, the three-jaw chuck is equipped with three soft jaws, and an adjustment mechanism is installed on one of the soft jaws. The adjustment mechanism includes a screw threaded with the soft claw at one end and a support handle, and the support handle is fixedly connected with the other end of the screw rod; since the tooling can be adjusted, it can adapt to the processing requirements of the part size within an appropriate range, and While ensuring the processing accuracy, the use of turning processing greatly reduces the cost.

Description

Gearbox front cover end face processing fixture

technical field

The utility model relates to a turning tool, in particular to a clamp for processing the end face of a gearbox front cover.

Background technique

The front cover is an important part to support the clutch when the gearbox is shifting. When the gearbox is connected to the drive shaft, the front cover and the gearbox cooperate to seal the gearbox. Therefore, the front cover and the gearbox The flatness precision of the matching surface is very high, but the front cover has to be milled by the machining center during the original machining, which not only makes the machining efficiency low, but also makes the cost high.

Utility model content

In view of the above-mentioned shortcomings of the prior art, the purpose of this utility model is to provide a gearbox front cover end surface processing fixture, which is used to solve the problems of low efficiency and high cost of processing the front cover in the prior art.

In order to achieve the above purpose and other related purposes, the utility model provides a clamp for processing the end face of the gearbox front cover, including: a three-jaw chuck fixedly connected to the main shaft of the machine tool, and the three-jaw chuck is equipped with three soft jaws, one of which is An adjustment mechanism is installed on the soft claw, and the adjustment mechanism includes a screw rod and a support handle, one end of the screw rod is threadedly connected with the soft claw, and the support handle is fixedly connected with the other end of the screw rod.

Preferably, the screw is also covered with a spring.

Preferably, the support handle has an outer end surface, and the area of the outer end surface is larger than the cross-sectional area of the screw rod.

Preferably, the outer end surface is perpendicular to the axis of the main shaft.

Preferably, a limit block is set on the three-jaw chuck according to the external dimensions of the part, and the limit block is set beside the soft jaw where the adjustment mechanism is located.

Preferably, the distance from the limit block to the outer end surface of the three-jaw chuck is 3-4 mm smaller than the distance from the part processing surface to the outer end surface of the three-jaw chuck.

Preferably, the limit block is arranged on the right side of the soft claw where the adjustment mechanism is located.

Preferably, the limiting block is a positioning pin.

Preferably, the support handle is fixedly connected to the screw rod through screws.

As mentioned above, the utility model has the following beneficial effects: the utility model is provided with an adjustment mechanism on the three-jaw chuck of the lathe, and the adjustment mechanism includes a screw rod and a support handle screwed to the soft jaw, and the support handle is fixed to the screw rod Connected, the support handle has an outer end surface, which is perpendicular to the axis of the machine tool spindle, so that for parts with large radial dimensions, the rigidity of the parts away from the clamping center is increased to ensure machining accuracy; beside the adjustment mechanism The purpose of setting the limit block is to facilitate the fast clamping of parts and improve the clamping efficiency; because the tooling can be adjusted, it can adapt to the processing requirements of the part size within an appropriate range, and the use of turning processing greatly reduces the cost of using the machining center.

Description of drawings

Fig. 1 shows the cross-sectional view of the utility model when the workpiece is not clamped.

Fig. 2 shows the front view of the utility model when the workpiece is not clamped.

Fig. 3 shows the sectional view when the utility model clamps the workpiece.

Fig. 4 shows the front view when the utility model clamps the workpiece.

Part number description

1 three-jaw chuck

2 Soft Claws

3 support handles

4 springs

5 screw

6 limit block

Detailed ways

The implementation of the present utility model is illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification.

As shown in Figures 1 to 4, the utility model provides a gearbox front cover end face processing fixture, the front cover is an important part of the gearbox, including: a three-jaw chuck 1 fixedly connected to the machine tool spindle, The three-jaw chuck 1 is equipped with three soft jaws 2, which can center the rotary parts, and one of the soft jaws 2 is equipped with an adjustment mechanism, which includes a screw rod 5 and a support handle 3, A threaded hole is pre-drilled on the soft claw 2, and one end of the screw rod 5 is screwed into the threaded hole to cooperate with it, and the support handle 3 is fixedly connected with the other end of the screw rod 5. The support handle 3 is used to adjust the distance between the outer end surface of the support handle 3 and the outer end surface of the three-jaw chuck 1. In particular, the support handle 3 and the screw rod 5 are fixedly connected by screws, or can be fixedly connected by welding; The supporting handle 3 has an outer end surface, and the area of the outer end surface is greater than the cross-sectional area of the screw rod 5. The purpose of such setting is to increase the contact area between the adjustment mechanism and the parts, so that during the processing, the rigidity of the parts is increased to ensure Machining accuracy; in particular, the cross section of the support handle 3 is circular, and may also be square.

Preferably, the screw 5 is also covered with a spring 4, which is designed to prevent the adjustment mechanism from turning after being stressed, reducing its supporting function, that is, preventing the reduction of the rigidity of the part during processing.

It should be noted that the outer end surface of the support handle 3 is perpendicular to the axis of the spindle, which increases the contact area between the support handle 3 and the part and increases the rigidity of the part during processing.

Preferably, according to the size of the part, a limit block 6 is set on the three-jaw chuck 1, and the limit block 6 is set beside the soft jaw 2 where the adjustment mechanism is located; in particular, the limit block 6 is set On the right side of the soft claw 2 where the adjustment mechanism is located, of course, it can also be arranged on the left side of the soft claw 2 where the adjustment mechanism is located, to facilitate the operator's operating habits; preferably, the limiting block 6 extends out of the The distance between the outer end surface of the three-jaw chuck 1 is 3-4 mm smaller than the distance from the part processing surface to the outer end surface of the three-jaw chuck 1. The purpose of such setting is to ensure that the limit block 6 will not interfere with the machining process of the part. At the same time, it is also for the protection of knives and personal safety.

Preferably, the limiting block 6 is a positioning pin, the setting of the limiting block 6 needs to consider the actual shape and size of the part, and the position of the positioning pin can be considered as a positioning pin; the purpose of setting the limiting block 6 is to It is convenient for the operator to quickly clamp and improve the efficiency of clamping.

To sum up, the utility model improves the universal three-jaw chuck by adding an adjustment mechanism and a limit block at the soft jaw, so that the rigidity of the part is increased when turning and processing the thin workpiece with external support, ensuring its The machining accuracy and the limit block set at the same time can also bring a faster clamping speed and improve the machining efficiency. Therefore, the utility model overcomes the defect of the front cover of the traditional machining center by using the turning process, and has a high industrial utilization value.

The above-mentioned embodiments only illustrate the principles and effects of the present utility model, but are not intended to limit the present utility model. Anyone familiar with this technology can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed in the utility model should still be covered by the claims of the utility model.

Claims (9)

1. a gearbox protecgulum end face clamp for machining, it is characterized in that, comprise: the scroll chuck be fixedly connected with machine tool chief axis, described scroll chuck is provided with three soft pawls, one of them soft pawl is provided with governor motion, and this governor motion comprises a screw rod, and support handle, described screw rod one end is threaded with described soft pawl, and described support handle is fixedly connected with the other end of described screw rod.

2. gearbox protecgulum end face clamp for machining according to claim 1, is characterized in that: described screw rod also overlaps spring.

3. gearbox protecgulum end face clamp for machining according to claim 1, is characterized in that: described support handle has an outer face, and the area of this outer face is greater than described screw rod cross-sectional area.

4. gearbox protecgulum end face clamp for machining according to claim 3, is characterized in that: described outer face is vertical with described spindle axis line.

5. gearbox protecgulum end face clamp for machining according to claim 1, it is characterized in that: the appearance and size according to part arranges limited block at described scroll chuck, described limited block is arranged at by the soft pawl at described governor motion place.

6. gearbox protecgulum end face clamp for machining according to claim 5, is characterized in that: the distance that described limited block extends the outer face of described scroll chuck than part finished surface to the little 3 ~ 4mm of the distance of the outer face of described scroll chuck.

7. gearbox protecgulum end face clamp for machining according to claim 5, is characterized in that: described limited block is arranged on the right side of the soft pawl at described governor motion place.

8. the gearbox protecgulum end face clamp for machining according to claim 6 or 7, is characterized in that: described limited block is alignment pin.

9. gearbox protecgulum end face clamp for machining according to claim 1, is characterized in that: described support handle is fixedly connected with by screw with described screw rod.