Pneumatic clamping mechanism for gear milling machine

Abstract

The utility model discloses a pneumatic clamping mechanism for a gear milling machine, which relates to the field of gear milling workpiece clamping and comprises a pushing mechanism, the pushing mechanism comprises a rotary support, an adjusting mechanism is arranged at the front end of the rotary support and comprises a support ring frame fixed at the front end of the rotary support, and a bevel gear ring is rotatably connected in the support ring frame. A plurality of bevel gears are meshed with the side face of the bevel gear ring, a plurality of adjusting supports are fixed to the outer side of the supporting ring frame, adjusting screws are rotationally connected into the adjusting supports and fixedly connected with the bevel gears, connecting plates are in threaded connection with the adjusting screws, and clamping mechanisms are arranged on one sides of the connecting plates. The clamping device has the beneficial effects that through the arrangement of the adjusting mechanism, a worker drives the connecting plates to move by rotating adjusting bolts, the connecting plates drive the clamping mechanism to be close to a workpiece, in addition, the multiple connecting plates are driven to move at the same time through cooperation of bevel gears and bevel gear rings, and therefore it can be guaranteed that the clamping distance can be adjusted, and meanwhile the clamping concentricity can be kept.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of milling tooth workpiece clamping, in particular to a pneumatic clamping mechanism for milling tooth machine. BACKGROUND

[0002] Milling tooth operation of rotary workpiece needs to use milling tooth machine, and the staff clamps the rotary workpiece to the pneumatic clamping mechanism, then rotates the mechanism to drive the pneumatic clamping mechanism to rotate, and cooperates with the cutter to mill the tooth of the required size on the workpiece. The pneumatic clamping mechanism pulls the clamping hand through the air cylinder, and clamps the rotary workpiece by using the taper surface on the clamping hand. However, since the size of the clamping hand is fixed, one clamping hand can only clamp the workpiece of the corresponding size, and different clamping hands are needed to clamp different sizes of workpieces, which increases the production cost, and it is troublesome to replace the clamping hand, thus slowing down the processing efficiency. Therefore, a pneumatic clamping mechanism capable of adapting to various sizes of rotary workpieces is needed. SUMMARY

[0003] The utility model discloses a pneumatic clamping mechanism for milling tooth machine.

[0004] The utility model discloses a technical scheme to realize the above-mentioned purpose:

[0005] A pneumatic clamping mechanism for milling tooth machine, comprising a pushing mechanism, the pushing mechanism comprising a rotary support fixedly connected with a rotating mechanism, the rotary support being provided with an adjusting mechanism at the front end, the adjusting mechanism comprising a support ring frame fixedly connected at the front end of the rotary support, the support ring frame being rotatably connected with a bevel gear ring inside, the bevel gear ring being meshed with a plurality of bevel gears symmetrically and uniformly arranged on the side surface, the support ring frame being fixedly connected with a plurality of adjusting supports arranged uniformly and circumferentially on the outside, the adjusting supports being rotatably connected with adjusting screws inside, the adjusting screws being fixedly connected with the bevel gears at one end, the adjusting screws being threadedly connected with connecting plates, the connecting plates being slidably connected with the adjusting supports, the connecting plates being provided with clamping mechanisms on one side, the clamping mechanisms being used for clamping the workpiece to be milled.

[0006] Preferably, the other end of the adjusting screw is fixedly connected with an adjusting bolt.

[0007] Preferably, the rotary support is fixedly connected with an air cylinder inside, the air cylinder being fixedly connected with a push plate at the output end, the push plate being slidably connected with the rotary support.

[0008] Preferably, the clamping mechanism comprises a clamping support fixedly connected with the connecting plate, the clamping support being slidably connected with a clamping push rod at the lower end, the clamping support being slidably connected with a forced push rod at the rear side, the front end of the forced push rod being provided with a downward inclined surface, the clamping push rod being provided with a forced slope, the forced slope being an upward inclined surface, the forced slope being slidably connected with the front end of the forced push rod, the clamping push rod and the clamping support being fixedly connected with a spring therebetween.

[0009] The lower end of the clamping push rod is fixedly connected with a clamping hand, the bottom of the clamping hand is provided with a V-shaped groove, the front end of the clamping hand extends to the front side of the clamping support, and the upper end of the clamping hand is provided as a slope.

[0010] Preferably, the forced push rod is fixedly connected with a flat plate on the rear side, and the flat plate on the rear side of the forced push rod can contact the push plate.

[0011] The beneficial effect is that: through the setting of the adjusting mechanism, the workers drive the connecting plates to move by rotating the adjusting bolts, the connecting plates drive the clamping mechanism to approach the workpiece, and in addition, through the cooperation of the bevel gears and the bevel gear rings, multiple connecting plates are driven to move at the same time, so that the concentricity of clamping can be maintained while the clamping distance is adjusted.

[0012] The additional technical features and advantages of the utility model will be more obvious in the following description, or can be understood through the specific practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0013] The drawings are used to provide further understanding of the utility model and constitute a part of the specification, and are used together with the following specific embodiments to explain the utility model, but do not constitute limitation to the utility model. In the drawings:

[0014] Figure 1 It is a perspective view of the pneumatic clamping mechanism of the gear milling machine;

[0015] Figure 2 It is a front view of the pneumatic clamping mechanism of the gear milling machine;

[0016] Figure 3 It is a schematic view of the relative position of the adjusting mechanism and the driving mechanism of the pneumatic clamping mechanism of the gear milling machine;

[0017] Figure 4 It is a structure schematic view of the adjusting mechanism of the pneumatic clamping mechanism of the gear milling machine;

[0018] Figure 5 It is a left side sectional view of the pneumatic clamping mechanism of the gear milling machine;

[0019] Figure 6 It is a structure schematic view of the clamping mechanism of the pneumatic clamping mechanism of the gear milling machine;

[0020] Figure 7 It is a left side sectional view of the clamping mechanism of the pneumatic clamping mechanism of the gear milling machine.

[0021] The reference signs are explained as follows:

[0022] 1. Pushing mechanism; 101. Rotary support; 102. Cylinder; 103. Push plate; 2. Adjusting mechanism; 201. Support ring frame; 202. Bevel gear ring; 203. Adjusting support; 204. Adjusting bolt; 205. Connecting plate; 206. Adjusting screw; 207. Bevel gear; 3. Clamping mechanism; 301. Clamping support; 302. Clamping push rod; 303. Hand; 304. Forced push rod; 305. Forced ramp; 306. Spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] The present invention will be further described below with reference to the accompanying drawings:

[0026] like Figures 1-7As shown, a pneumatic clamping mechanism for a gear milling machine includes a pushing mechanism 1. The pushing mechanism 1 includes a rotary support 101 fixedly connected to a rotating mechanism. An adjusting mechanism 2 is provided at the front end of the rotary support 101. The adjusting mechanism 2 includes a support ring frame 201 fixedly connected to the front end of the rotary support 101. A bevel gear ring 202 is rotatably connected to the support ring frame 201 via a bearing. A plurality of circumferentially uniform and symmetrical bevel gears 207 are meshed on the side of the bevel gear ring 202. A plurality of circumferentially uniformly arranged adjusting brackets 203 are fixedly connected to the outside of the support ring frame 201. An adjusting screw 206 is rotatably connected to the adjusting bracket 203. One end of the adjusting screw 206 is fixedly connected to the bevel gear 207. A connecting plate 205 is threadedly connected to the adjusting screw 206. 205 is slidably connected to the adjusting bracket 203. A clamping mechanism 3 is provided on one side of the connecting plate 205. The clamping mechanism 3 is used to clamp the workpiece to be milled. An adjusting bolt 204 is fixedly connected to the other end of the adjusting screw 206. When the operator rotates the adjusting bolt 204, the adjusting bolt 204 drives the adjusting screw 206 to rotate. The adjusting screw 206 drives the connecting plate 205 to move. The connecting plate 205 drives the clamping mechanism 3 to move closer to the workpiece. At the same time, the adjusting screw 206 drives the bevel gear 207 to rotate. The bevel gear 207 drives the bevel gear ring 202 to rotate. The bevel gear ring 202 drives the other bevel gears 207 to rotate. The bevel gears 207 drive the other adjusting screws 206 to rotate. In this way, the other clamping mechanisms 3 can move closer to the workpiece.

[0027] A cylinder 102 is fixedly connected inside the rotary support 101. A push plate 103 is fixedly connected to the output end of the cylinder 102. The push plate 103 is slidably connected to the rotary support 101. A plate is fixedly connected to the rear side of the forced push rod 304. The plate on the rear side of the forced push rod 304 can contact the push plate 103. The rotating mechanism on the gear milling machine can drive the rotary support 101 to rotate. The cylinder 102 drives the push plate 103 to move. The push plate 103 moves forward and contacts the forced push rod 304. Then the push plate 103 pushes the forced push rod 304 to move.

[0028] The clamping mechanism 3 includes a clamping bracket 301 fixedly connected to the connecting plate 205. A clamping push rod 302 is slidably connected to the lower end of the clamping bracket 301. A forced push rod 304 is slidably connected to the rear side of the clamping bracket 301. The front end of the forced push rod 304 is set as a downward slope. A forced ramp 305 is provided on the clamping push rod 302. The forced ramp 305 is an upward slope. The forced ramp 305 is slidably connected to the front end of the forced push rod 304. A spring 306 is fixedly connected between the clamping push rod 302 and the clamping bracket 301. A gripper 303 is fixedly connected to the lower end of the clamping push rod 302. The bottom of the 03 is provided with a V-shaped groove. The front end of the gripper 303 extends out of the front side of the clamping bracket 301. The upper end of the gripper 303 is set as a slope. After the clamping bracket 301 approaches the workpiece, under the cooperation of the inclined surface of the front end of the forced push rod 304 and the forced slope 305, the forced push rod 304 drives the clamping push rod 302 to move. The clamping push rod 302 drives the gripper 303 to clamp the workpiece. At this time, the spring 306 is stretched. When the clamping is released, the spring 306 drives the clamping push rod 302 and the forced push rod 304 to return to their original positions. The V-shaped groove at the bottom of the gripper 303 ensures that the gripper 303 can be used to clamp workpieces of different diameters.

[0029] Working principle: The rotating mechanism on the gear milling machine drives the rotary support 101 to rotate. The cylinder 102 drives the push plate 103 to move. The push plate 103 moves forward and contacts the forced push rod 304. Then, the push plate 103 pushes the forced push rod 304 to move. With the cooperation of the inclined surface at the front end of the forced push rod 304 and the forced ramp 305, the forced push rod 304 drives the clamping push rod 302 to move. The clamping push rod 302 drives the gripper 303 to clamp the workpiece. At this time, the spring 306 is stretched. When the clamping is released, the spring 306 drives the clamping push rod 302 and the forced push rod 304 to return to their original positions. The V-groove at the bottom of the gripper 303 ensures... The clamp 303 can clamp workpieces of different diameters. When the clamping distance needs to be adjusted, the operator rotates the adjusting bolt 204, which drives the adjusting screw 206 to rotate. The adjusting screw 206 drives the connecting plate 205 to move, and the connecting plate 205 drives the clamping mechanism 3 to move closer to the workpiece. At the same time, the adjusting screw 206 drives the bevel gear 207 to rotate, which drives the bevel gear ring 202 to rotate. The bevel gear ring 202 drives the remaining bevel gears 207 to rotate, and the bevel gears 207 drive the remaining adjusting screws 206 to rotate. In this way, the remaining clamping mechanisms 3 can move closer to the workpiece.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A pneumatic clamping mechanism for a gear milling machine comprising a pushing mechanism (1), characterized in that: The pushing mechanism (1) comprises a slewing support (101) fixedly connected with a rotating mechanism, an adjusting mechanism (2) is arranged at the front end of the slewing support (101), the adjusting mechanism (2) comprises a support ring frame (201) fixedly connected at the front end of the slewing support (101), a bevel gear ring (202) is rotatably connected in the support ring frame (201), a plurality of circumferentially uniform and symmetrical bevel gears (207) are engaged with the side surface of the bevel gear ring (202), a plurality of circumferentially uniform adjusting supports (203) are fixedly connected outside the support ring frame (201), adjusting screws (206) are rotatably connected in the adjusting supports (203), one end of the adjusting screw (206) is fixedly connected with the bevel gear (207), a connecting plate (205) is threadedly connected on the adjusting screw (206), the connecting plate (205) is slidably connected with the adjusting support (203), a clamping mechanism (3) is arranged on one side of the connecting plate (205), and the clamping mechanism (3) is used for clamping a workpiece to be milled.

2. A pneumatic clamping mechanism for a gear milling machine according to claim 1, characterized in that: The other end of the adjusting screw (206) is fixedly connected with an adjusting bolt (204).

3. A pneumatic clamping mechanism for a gear milling machine as claimed in claim 1, characterized in that: A gas cylinder (102) is fixedly connected in the slewing support (101), a push plate (103) is fixedly connected at the output end of the gas cylinder (102), and the push plate (103) is slidably connected with the slewing support (101).

4. A pneumatic clamping mechanism for a gear milling machine according to claim 3, characterized in that: The clamping mechanism (3) comprises a clamping support (301) fixedly connected with the connecting plate (205), a clamping push rod (302) is slidably connected at the lower end of the clamping support (301), a forced push rod (304) is slidably connected at the rear side of the clamping support (301), the front end of the forced push rod (304) is arranged as a downward inclined surface, a forced slope (305) is arranged on the clamping push rod (302), the forced slope (305) is an upward inclined surface, the forced slope (305) is slidably connected with the front end of the forced push rod (304), and a spring (306) is fixedly connected between the clamping push rod (302) and the clamping support (301).

5. A pneumatic clamping mechanism for a gear milling machine according to claim 4, characterized in that: A clamping hand (303) is fixedly connected at the lower end of the clamping push rod (302), a V-shaped groove is arranged at the bottom of the clamping hand (303), the front end of the clamping hand (303) protrudes from the front side of the clamping support (301), and the upper end of the clamping hand (303) is arranged as a slope.

6. A pneumatic clamping mechanism for a gear milling machine according to claim 5, characterized in that: A flat plate is fixedly connected at the rear side of the forced push rod (304), and the flat plate at the rear side of the forced push rod (304) can be in contact with the push plate (103). A clamping hand (303) is fixedly connected at the lower end of the clamping push rod (302), a V-shaped groove is arranged at the bottom of the clamping hand (303), the front end of the clamping hand (303) protrudes from the front side of the clamping support (301), and the upper end of the clamping hand (303) is arranged as a slope.

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