CN207997145U - A kind of lathe turntable dedicated clamp for lathe-machining - Google Patents

Abstract

The utility model discloses a special fixture for lathe turntable turning, which solves the problems of difficult adjustment and low machining accuracy of the lathe turntable turning fixture in the prior art. The utility model includes an X-direction clamping mechanism and a Y-direction clamping mechanism. The X-direction clamping mechanism includes a left clamp and a right clamp. The left clamp includes a hook-shaped pressing plate and a first stud, and the hook-shaped pressing plate passes through the first stud and the lathe. The main body is connected, and the upper part of the hook-shaped pressure plate is in contact with the surface of the lathe turntable; the right clamp includes a fixing seat and a supporting nail for supporting the turning table of the lathe, and the supporting nail is movably connected with the fixing seat; the clamping mechanism in the Y direction includes an upper clamp and a lower clamp . The utility model adopts the clamping method of the hook-shaped pressing plate with an external nut in the X direction, and adopts the clamping method of the retaining pin spring and the external screw in the Y direction, so as to ensure the stability and stability of the part when the part rotates at high speed during processing. safety.

Description

A special fixture for lathe turntable turning

technical field

The utility model relates to the technical field of lathe turntable processing devices, in particular to a special fixture for lathe turntable turning.

Background technique

The turntable of the lathe is located between the upper tool rest and the lower tool rest of the tool rest. It is the guide of the upper tool rest. horn. When processing on a lathe, the tool is fixed, and the turntable parts rotate with the fixture at high speed. Therefore, the safety and performance of part processing should be paid attention to. The turntable of the lathe belongs to mass production, and the shape of the parts is not suitable for the use of general-purpose fixtures. In order to ensure the machining accuracy of the workpiece and improve production efficiency, special fixtures should be used. After preliminary research, there are not many special fixtures for bed turntable lathe processing on the market, and the clamping method in the existing fixtures adopts a screw clamping mechanism similar to that of the drilling machine fixture. Such fixtures are not easy to adjust, and the machining accuracy is low. Work efficiency Low problems need to be further improved.

Utility model content

In view of the deficiencies in the above-mentioned background technology, the utility model proposes a special fixture for lathe turntable turning, which solves the problems of difficult adjustment and low machining accuracy of the lathe turntable turning fixture in the prior art.

The technical solution of the utility model is realized in the following way: a special fixture for lathe turntable turning, including an X-direction clamping mechanism and a Y-direction clamping mechanism, and the X-direction clamping mechanism includes a left fixture and a right fixture fixedly connected with the lathe body , the left fixture includes a hook-shaped pressing plate and a first stud, the hook-shaped pressing plate is connected to the lathe body through the first stud, and the upper part of the hook-shaped pressing plate is in contact with the surface of the lathe turntable; the right fixture includes a fixed seat and is used to support the lathe turntable The supporting nails are movably connected with the fixed seat; the clamping mechanism in the Y direction includes an upper clamp and a lower clamp fixedly connected to the lathe body, the upper clamp includes a positioning plate, and the positioning plate is connected with the bed body through the first screw, and the positioning plate is connected with the bed body The turntable of the lathe is matched; the lower fixture includes a floating pressure plate, a guide plate and a tightening screw for tightening the floating pressure plate. The guide plate is fixedly connected with the lathe body, and the floating pressure plate is fixed on the lathe body through the guide plate. One end of the floating platen is matched with the turntable of the lathe.

The lower part of the hook-shaped pressing plate is provided with a connection through hole, and the inner end of the connection through hole is provided with a retaining groove, and a first pressure spring is arranged in the retaining groove, and the first stud passes through the connection through hole and the first pressure spring and passes through the nut. It is fixedly connected with the lathe body; the upper part of the hook-shaped pressure plate is provided with a positioning boss, and the positioning boss is in contact with the turntable surface of the lathe.

The lower end of the first stud is provided with a positioning hole, and the first stud is connected with the lathe body through a positioning pin passing through the positioning hole.

The positioning plate is arranged symmetrically on both sides of the turntable of the lathe, and the lower part of the positioning plate is provided with a tapered surface, which matches with the tapered surface of the lower part of the turntable of the lathe; the upper positioning pin is provided on the positioning plate to connect with the lathe body.

The lower fixture also includes two lower pressing plates, which are arranged symmetrically on both sides of the turntable of the lathe. The lower pressing plates correspond to the positioning plates, and the lower pressing plates are fixedly connected to the lathe body through second screws.

The guide plate is symmetrically arranged on both sides of the floating platen, side grooves are provided on both sides of the floating platen, side platforms are provided on the guide plate, the side platforms match the side grooves, and the guide plate is connected with the third screw and the lower positioning pin. The lathe body is fixedly connected.

The floating platen is provided with a long waist hole, and a second pressure spring and a stop pin are arranged in the long waist hole. One end of the stop pin extends into the lathe body, and the other end extends into the long waist hole and is connected with the second The pressure springs are in contact with each other, and the second pressure spring is located at one end of the floating pressing plate provided with the jacking screw.

The jacking screw, the second pressure spring and the stop pin are located on the same straight line; the inner end surface of the floating pressure plate is provided with a tapered surface, and the tapered surface matches the tapered surface at the lower part of the lathe turntable.

The utility model adopts the clamping method of the hook-shaped pressing plate with an external nut in the X direction, and adopts the clamping method of the retaining pin spring and the external screw in the Y direction, so as to ensure the stability and stability of the part when the part rotates at high speed during processing. safety. The utility model adjusts and locates the position of the processing parts in the X direction through the first stud and the support nail, and adjusts the position of the processing parts in the Y direction through the floating pressure plate. The adjustment accuracy is high, and the processing efficiency and processing quality are improved. High promotional value.

Description of drawings

In order to illustrate the embodiment of the utility model more clearly, the accompanying drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the utility model. Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

Fig. 1 is a schematic top view of the utility model as a whole.

Fig. 2 is a view from direction D in Fig. 1 .

Fig. 3 is a view from direction A in Fig. 1 .

Fig. 4 is a view from direction B in Fig. 1 .

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figures 1-4, Embodiment 1 is a special fixture for lathe turntable turning, including an X-direction clamping mechanism and a Y-direction clamping mechanism. The turntable is used for positioning and clamping, which improves the safety factor of processing. The X-direction clamping mechanism includes a left clamp 2 and a right clamp 3 fixedly connected to the lathe body 1, the center of the left clamp 2 coincides with the center line of the lathe turntable, and the right clamp 3 is located on one side of the lathe turntable. The left fixture 2 includes a hook-shaped pressing plate 2-1 and a first stud 2-2, the hook-shaped pressing plate 2-1 is connected with the lathe body 1 through the first stud 2-2, and the upper part of the hook-shaped pressing plate 2-1 is connected with the lathe The 4-side contact of the turntable is used for pressing and positioning the turntable of the lathe. The right clamp 3 includes a fixed seat 3-1 and a support nail 3-2 for supporting the lathe turntable 4, the support nail 3-2 is movably connected with the fix seat 3-1, and the rotating support nail is used to compress the lathe turntable. The Y-direction clamping mechanism includes an upper clamp 5 and a lower clamp 6 fixedly connected to the lathe body 1, and the upper clamp 5 includes a positioning plate 5-1, and the positioning plate 5-1 is connected with the bed body 1 through the first screw 5-2, and the positioning The plate 5-1 cooperates with the lathe turntable 4 and is used for positioning and tightening the turntable of the lathe. The lower fixture 6 includes a floating platen 6-1, a guide plate 6-2 and a tightening screw 6-11 for tightening the floating platen 6-1, the guide plate 6-2 is fixedly connected with the lathe body 1, and the floating platen 6-1 The guide plate 6-2 is pressed and fixed on the lathe body 1, the jacking screw 6-11 is located at one end of the floating platen 6-1, and the other end of the floating platen 6-1 is matched with the turntable 4 of the lathe, and the floating plate is moved by the jacking screw. Press plate, press the turning plate of the lathe through the floating press plate.

Further, the lower part of the hook-shaped pressing plate 2-1 is provided with a connecting through hole 2-3, and the inner end of the connecting through hole 2-3 is provided with a stop groove 2-4, and a first pressure spring 2 is arranged in the stop groove 2-4. -5, the first stud 2-2 passes through the connection through hole 2-3 and the first pressure spring 2-5 and is fixedly connected with the lathe body 1 through the nut 2-6, the first pressure spring is used for buffering the hook-shaped pressure plate and the first pressure spring 2-5 Concentrated stress between lathe bodies. The top of the hook-shaped pressing plate 2-1 is provided with a positioning boss 2-9, and the positioning boss 2-9 is in contact with 4 sides of the lathe turntable, and is used to compress the lathe turntable. The lower end of the first stud 2-2 is provided with a positioning hole 2-7, and the first stud 2-2 is connected with the lathe body 1 through the positioning pin 2-8 passing through the positioning hole 2-7 to perform positioning and fixing The role of the first stud.

Further, the positioning plate 5-1 is arranged symmetrically on both sides of the lathe turntable 4, the lower part of the positioning plate 5-1 is provided with a tapered surface, and the tapered surface cooperates with the tapered surface of the lower part of the lathe turntable 4, which is convenient for pressing the lathe. The turntable; the positioning plate 5-1 is provided with an upper positioning pin 5-3 and is connected with the lathe body 1.

Embodiment 2, a special fixture for lathe turntable turning, the lower fixture 6 also includes two lower pressure plates 6-3, the two lower pressure plates 6-3 are symmetrically arranged on both sides of the lathe turntable 4, the lower pressure plates 6-3 Corresponding to the positioning plate 5-1, so that the force is uniform and the processing safety factor is ensured at the same time, the lower pressing plate 6-3 is fixedly connected with the lathe body 1 through the second screw 6-5. The guide plate 6-2 is symmetrically arranged on both sides of the floating platen 6-1, side grooves are provided on both sides of the floating platen 6-1, and the guide plate 6-2 is provided with a side platform 6-4, and the side platform 6- 4 Cooperating with the side groove, the floating pressure plate slides along the guide plate under the action of the jacking screw, which realizes convenient adjustment and improves positioning and adjustment accuracy at the same time. The guide plate 6-2 passes the third screw 6-6 and the lower positioning pin 6- 7 is fixedly connected with lathe body 1.

Further, the floating platen 6-1 is provided with a strip waist hole 6-8, and the strip waist hole 6-8 is provided with a second pressure spring 6-9 and a stop pin 6-10, and one end of the stop pin 6-10 extends Into the lathe body 1, the other end stretches into the long waist hole 6-8 and is in contact with the second pressure spring 6-9, the second pressure spring 6-9 is located on the floating pressure plate 6-1 and is provided with a jacking screw 6-8. 11 at one end. The jacking screw 6-11, the second pressure spring 6-9 and the stop pin 6-10 are located on the same straight line to prevent the floating pressure plate from deviating from the pressing direction of the turntable of the lathe. The inner end surface of the floating pressure plate 6-1 is provided with a tapered surface, and the tapered surface cooperates with the tapered surface at the bottom of the lathe turntable 4 to facilitate the clamping of the floating pressure plate to the lathe turntable.

Other structures are the same as in Embodiment 1.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (8)

1. A special clamp for lathe turntable turning, characterized in that it includes an X-direction clamping mechanism and a Y-direction clamping mechanism, and the X-direction clamping mechanism includes a left clamp (2) and a right clamp fixedly connected to the lathe body (1). The fixture (3), the left fixture (2) includes the hook-shaped pressing plate (2-1) and the first stud (2-2), the hook-shaped pressing plate (2-1) connects with the lathe through the first stud (2-2) The body (1) is connected, and the upper part of the hook-shaped pressure plate (2-1) is in surface contact with the turntable (4) of the lathe; the right clamp (3) includes a fixed seat (3-1) and a support for the turntable (4) of the lathe The support nail (3-2), the support nail (3-2) is movably connected with the fixed seat (3-1); the clamping mechanism in the Y direction includes the upper clamp (5) and the lower clamp (6) fixedly connected to the lathe body (1) ), the upper fixture (5) includes a positioning plate (5-1), the positioning plate (5-1) is connected with the bed body (1) through the first screw (5-2), and the positioning plate (5-1) is connected with the lathe The turntable (4) matches; the lower clamp (6) includes a floating platen (6-1), a guide plate (6-2) and a tightening screw (6-11) for tightening the floating platen (6-1), The guide plate (6-2) is fixedly connected with the lathe body (1), the floating pressure plate (6-1) is fixed on the lathe body (1) through the guide plate (6-2), and the jacking screw (6-11) is located on the floating One end of the pressing plate (6-1), the other end of the floating pressing plate (6-1) cooperates with the lathe turntable (4). 2. The special fixture for lathe turntable turning according to claim 1, characterized in that: the lower part of the hook-shaped pressing plate (2-1) is provided with a connecting through hole (2-3), and the connecting through hole (2-3) There is a retaining groove (2-4) at the inner end of the retaining groove (2-4), and a first pressure spring (2-5) is arranged in the retaining groove (2-4), and the first stud (2-2) passes through the connection through hole (2- 3) and the first pressure spring (2-5) are fixedly connected with the lathe body (1) through nuts (2-6); the upper part of the hook-shaped pressure plate (2-1) is provided with a positioning boss (2-9), The positioning boss (2-9) is in surface contact with the turntable (4) of the lathe. 3. The special fixture for lathe turntable turning according to claim 2, characterized in that: the lower end of the first stud (2-2) is provided with a positioning hole (2-7), and the first stud (2-2) 2) Connect with the lathe body (1) through the positioning pin (2-8) passing through the positioning hole (2-7). 4. The special fixture for lathe turntable turning according to claim 1, characterized in that: the positioning plate (5-1) is symmetrically arranged on both sides of the lathe turntable (4), and the lower part of the positioning plate (5-1) A tapered surface is provided, and the tapered surface cooperates with the tapered surface at the lower part of the lathe turntable (4); the positioning plate (5-1) is provided with an upper positioning pin (5-3) to connect with the lathe body (1). 5. The special fixture for lathe turntable turning according to any one of claims 1-4, characterized in that: the lower fixture (6) also includes two lower pressure plates (6-3), two lower pressure plates (6 -3) Symmetrically arranged on both sides of the turntable (4) of the lathe, the lower pressing plate (6-3) corresponds to the positioning plate (5-1), and the lower pressing plate (6-3) is connected with the second screw (6-5) The lathe body (1) is fixedly connected. 6. The special fixture for lathe turntable turning according to claim 5, characterized in that: the guide plate (6-2) is symmetrically arranged on both sides of the floating platen (6-1), and the floating platen (6-1) There are side grooves on both sides of the guide plate (6-2), and a side platform (6-4) is provided on the guide plate (6-2). The side platform (6-4) matches the side groove, and the guide plate (6-2) passes through the third screw (6-6) and the lower positioning pin (6-7) are fixedly connected with the lathe body (1). 7. The special fixture for lathe turntable turning according to claim 6, characterized in that: the floating platen (6-1) is provided with a long waist hole (6-8), and the long waist hole (6-8 ) is provided with a second pressure spring (6-9) and a stop pin (6-10), one end of the stop pin (6-10) extends into the lathe body (1), and the other end extends into the long waist hole (6 -8) and in contact with the second pressure spring (6-9), the second pressure spring (6-9) is located at one end of the floating platen (6-1) provided with the tightening screw (6-11). 8. The special fixture for lathe turntable turning according to claim 7, characterized in that: the jacking screw (6-11), the second pressure spring (6-9) and the stop pin (6-10) are located at the same On a straight line; the inner end surface of the floating platen (6-1) is provided with a tapered surface, which matches the tapered surface at the bottom of the lathe turntable (4).