CN210193186U

CN210193186U - Lifting claw for numerical control vertical lathe

Info

Publication number: CN210193186U
Application number: CN201920664460.2U
Authority: CN
Inventors: Jianguo Yin; 尹建国
Original assignee: SUZHOU CHUO MALLEABLE IRON CO Ltd
Current assignee: SUZHOU CHUO MALLEABLE IRON CO Ltd
Priority date: 2019-05-10
Filing date: 2019-05-10
Publication date: 2020-03-27
Anticipated expiration: 2029-05-10

Abstract

The utility model provides a lifting claw for numerical control vertical lathe, including lug bolt, lock nut, central hanging shaft, horizontal shaft sleeve, axle sleeve support arm, crank arm jib, tensioning branch, center pin base, hanging foot, outline cushion and product, the bottom that the axle was hung at the center is fixed on the axis of center pin base, center pin base periphery has three connector along circumferencial direction evenly distributed, is connected with three tensioning branches respectively, the other end of tensioning branch is connected on crank arm jib. The utility model forms a connecting rod type lifting claw by arranging the tensioning support rod and the crank arm suspender on the central lifting shaft and arranging the horizontal shaft sleeve and the shaft sleeve support arm outside the central lifting shaft, and the contraction and the expansion of the lifting claw can be realized by the movement of the central lifting shaft in the horizontal shaft sleeve, thereby being convenient for grabbing products; meanwhile, the profile cushion block matched with the inner wall of the product is arranged at the position of the lifting foot, and the sawtooth structure is arranged on the outer side of the profile cushion block, so that the friction force of a contact surface is increased, and the safety of lifting the product is guaranteed.

Description

Lifting claw for numerical control vertical lathe

Technical Field

The utility model relates to a lifting claw technical field, in particular to lifting claw for numerical control vertical lathe.

Background

The castings of the companies have various varieties and different shapes, and various hoisting tools can be used in the processes of product post-treatment, transfer, machining and boxing and packaging. The product shown in the attached figure 8 is a speed reducer shell, and because the casting has a large volume, a proper lifting appliance cannot be selected all the time, the maximum outer diameter of the product is 476mm, and the weight of the product reaches 105Kg, when a vertical numerically controlled lathe is used for machining, although an electric hoist is also used for lifting, the expansion size of the outer claw type lifting appliance is very large, the working space of a cutting part of the vertical numerically controlled lathe is narrow, the operation of the outer claw type lifting appliance is inconvenient, time and labor are wasted when a workpiece is clamped every time, and certain potential safety hazards also exist.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a lifting claw for a numerical control vertical lathe.

In order to achieve the above object, the present invention provides the following technical solutions:

a lifting claw for a numerical control vertical lathe comprises a lifting lug bolt, a clamping nut, a central lifting shaft, a horizontal shaft sleeve, a shaft sleeve support arm, a crank arm lifting rod, tensioning support rods, a central shaft base, a lifting foot, a contour cushion block and a product, wherein the bottom of the central lifting shaft is fixed on a central axis of the central shaft base; the end, far away from the tensioning support rod, of the crank arm suspender is connected to the shaft sleeve support arms, the three shaft sleeve support arms are fixed to the bottom of the horizontal shaft sleeve, and the horizontal shaft sleeve is sleeved on the outer side of the central hanging shaft and can move up and down along the central hanging shaft.

Furthermore, a threaded hole is formed in the top of the central hanging shaft, a lifting lug bolt is connected in the threaded hole, and a fastening nut is connected to the outer side of the lifting lug bolt.

Furthermore, one end of the crank arm suspender, which is connected with the tensioning support rod, is provided with a hanging foot, and the hanging foot is provided with a contour cushion block.

Furthermore, the bottom of the central hanging shaft is welded on the base of the central shaft.

Furthermore, the joint of the tensioning support rod and the central shaft base is connected through a pin shaft, and the joint of the tensioning support rod and the crank arm hanging rod is connected through a pin shaft.

Furthermore, the joint of the crank arm suspender and the shaft sleeve support arm is connected by a pin shaft.

Furthermore, the joint of the shaft sleeve support arm and the horizontal shaft sleeve is connected by welding.

Furthermore, the joint of the crank arm suspender and the hanging foot is connected by welding.

Further, the outer side of the contour cushion block is completely attached to the inner wall of the position 60 degrees on the inner side of the product.

Furthermore, the hanging feet are connected with the profile cushion block through bolts, and the outer side of the profile cushion block is in a sawtooth shape.

The utility model discloses the beneficial effect who brings is: the tensioning support rod and the crank arm hanging rod are arranged on the central hanging shaft, and the horizontal shaft sleeve and the shaft sleeve support arm are arranged on the outer side of the central hanging shaft to form the connecting rod type hanging claw, so that the hanging claw can be contracted and expanded through the movement of the central hanging shaft in the horizontal shaft sleeve, and a product can be conveniently grabbed; simultaneously hang foot department and set up the profile cushion block that agrees with the product inner wall mutually to set up the sawtooth structure in the profile cushion block outside, increase the frictional force of contact surface, guarantee to hang the security of getting the product, very big improvement snatch the speed.

Drawings

Fig. 1 is a plan view of the lifting claw for a numerically controlled vertical lathe of the present invention.

Fig. 2 is a sectional view in the direction of a-a in fig. 1.

Fig. 3 is a sectional view in the direction B-B in fig. 2.

Fig. 4 is a sectional view in the direction C-C in fig. 2.

Fig. 5 is an enlarged view of a portion of the hanger and profile block of fig. 1.

Fig. 6 is a plan view of the lifting claw for the numerical control vertical lathe of the present invention in an operating state.

Fig. 7 is a sectional view in the direction H-H in fig. 6.

Fig. 8 is a product structure diagram of the present invention.

Reference numbers in the figures:

1. a lug bolt; 2. tightening the screw cap; 3. a central hanger shaft; 4. a horizontal shaft sleeve; 5. a shaft sleeve support arm; 6. a crank arm boom; 7. tensioning the strut; 8. a central shaft base; 9. hanging feet; 10. a contour cushion block; 11. and (5) producing the product.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

As shown in fig. 1-8, a lifting claw for a numerical control vertical lathe comprises a lifting lug bolt 1, a clamping nut 2, a central lifting shaft 3, a horizontal shaft sleeve 4, a shaft sleeve support arm 5, a crank arm suspender 6, a tensioning strut 7, a central shaft base 8, a lifting foot 9, a profile cushion block 10 and a product 11, wherein the bottom of the central lifting shaft 3 is fixed on a central axis of the central shaft base 8, three connecting ports are uniformly distributed on the periphery of the central shaft base 8 along the circumferential direction and are respectively connected with three tensioning struts 7, and the other ends of the tensioning struts 7 are connected to the crank arm suspender 6; one end of the crank arm suspender 6, which is far away from the tensioning support rod 7, is connected to the shaft sleeve support arms 5, the three shaft sleeve support arms 5 are fixed at the bottom of the horizontal shaft sleeve 4, and the horizontal shaft sleeve 4 is sleeved on the outer side of the central hanging shaft 3 and can move up and down along the central hanging shaft 3.

The top of the central hanging shaft 3 is provided with a threaded hole, a lifting lug bolt 1 is connected in the threaded hole, the outer side of the lifting lug bolt 1 is connected with a clamping nut 2, the lifting lug bolt 1 can adjust the length of the central hanging shaft 3, the clamping nut 2 is used for fixing the lifting lug bolt, and the operation method is as follows: loosening and tightening the nut can rotate the eye bolt 1, and tightening the nut 2 when the central suspension shaft 3 reaches a suitable length ensures that no rotation occurs during use of the eye bolt 1.

And a hanging foot 9 is arranged at one end of the crank arm suspender 6 connected with the tensioning support rod 7, and a contour cushion block 10 is arranged on the hanging foot 9.

The bottom of the central hanging shaft 3 is welded on the central shaft base 8.

The connecting part of the tensioning support rod 7 and the central shaft base 8 is connected through a pin shaft, and the connecting part of the tensioning support rod 7 and the crank arm suspender 6 is connected through a pin shaft.

The joint of the crank arm suspender 6 and the shaft sleeve support arm 5 is connected by a pin shaft.

The connecting part of the shaft sleeve support arm 5 and the horizontal shaft sleeve 4 is connected by welding.

The joint of the crank arm suspender 6 and the hanging foot 9 is welded.

The outer side of the contour block 10 completely fits the inner wall of the product 11 at 60 deg..

The hanging feet 9 are connected with the contour cushion blocks 10 through bolts, and the outer sides of the contour cushion blocks 10 are in a sawtooth shape.

The present invention will be further explained with reference to the drawings and the working principle. (operation and principle)

Central hanging shaft 3 is clearance fit with horizontal shaft sleeve 4, the utility model discloses central hanging shaft 3 is in the free fall state when the lifting claw level is placed, receives connecting rod effect tensioning branch 7 also to be in the contraction state with crank jib 6. When a casting product 11 needs to be hung and taken, an operator holds the horizontal shaft sleeve 4 of the hanging claw, when the hanging claw moves to the upper opening of the product 11, the left hand exerts force upwards (the central hanging shaft 3 relatively descends), the crank arm suspender 6 contracts and then can be placed into the product 11, when the hanging claw descends to the inner diameter surface tool withdrawal groove position (the 60-degree corner in the attached figure 8), the left hand exerts force downwards (the central hanging shaft 3 relatively ascends), the crank arm suspender 6 expands until the contour cushion block 10 is completely matched with the contour of the 60-degree arc surface on the tool withdrawal groove, along with the ascending of the casting, the extrusion force of the contour cushion block 10 on the hanging foot 9 and the extrusion force of the product 11 are increasingly tight, and the pressing force is in direct proportion to the weight of the casting;

because the end surface of the inner diameter relief groove and the inner diameter surface have an R arc angle of 60 degrees (refer to fig. 8), the profile cushion block 10 and the profile of the upper end surface of the relief groove must be completely matched, and in order to increase the friction force of a contact surface, the profile surface of the profile cushion block 10 adopts a zigzag design, thereby ensuring the safety of hoisting operation.

In addition, the production efficiency is improved, the clamping time of the products 11 is saved, the processing time of the products 11 is improved from 12 to 16 per hour, 600 more product castings can be produced per month, and the production value of an enterprise is increased by 90 ten thousand per month.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can be covered within the protection scope of the present invention without the changes or substitutions thought by the inventive work within the technical scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. The lifting claw for the numerical control vertical lathe is characterized by comprising a lifting lug bolt (1), a clamping nut (2), a central lifting shaft (3), a horizontal shaft sleeve (4), a shaft sleeve support arm (5), a crank arm suspender (6), a tensioning support rod (7), a central shaft base (8), a lifting foot (9), a contour cushion block (10) and a product (11), wherein the bottom of the central lifting shaft (3) is fixed on the central axis of the central shaft base (8), three connecting ports are uniformly distributed on the periphery of the central shaft base (8) along the circumferential direction and are respectively connected with three tensioning support rods (7), and the other end of each tensioning support rod (7) is connected to the crank arm suspender (6); one end, far away from the tensioning support rod (7), of the crank arm suspender (6) is connected to the shaft sleeve support arms (5), the three shaft sleeve support arms (5) are fixed to the bottom of the horizontal shaft sleeve (4), and the horizontal shaft sleeve (4) is sleeved on the outer side of the central hanging shaft (3) and can move up and down along the central hanging shaft (3).

2. The lifting claw for the numerical control vertical lathe according to claim 1, wherein a threaded hole is formed in the top of the central lifting shaft (3), a lifting lug bolt (1) is connected in the threaded hole, and a clamping nut (2) is connected to the outer side of the lifting lug bolt (1).

3. The lifting claw for the numerical control vertical lathe according to claim 1, wherein a lifting foot (9) is arranged at one end of the crank arm suspension rod (6) connected with the tensioning support rod (7), and a contour cushion block (10) is arranged on the lifting foot (9).

4. The lifting claw for the numerical control vertical lathe according to claim 1, wherein the bottom of the central lifting shaft (3) is welded to the central shaft base (8).

5. The lifting claw for the numerical control vertical lathe according to claim 1, wherein the joint of the tensioning support rod (7) and the central shaft base (8) is connected by a pin shaft, and the joint of the tensioning support rod (7) and the crank boom (6) is connected by a pin shaft.

6. The lifting claw for the numerical control vertical lathe according to claim 1, wherein the joint of the crank arm suspension rod (6) and the shaft sleeve support arm (5) is connected by a pin shaft.

7. The lifting claw for the numerical control vertical lathe according to claim 1, wherein the joint of the bushing support arm (5) and the horizontal bushing (4) is connected by welding.

8. The lifting claw for the numerical control vertical lathe according to claim 3, wherein the joint of the crank arm suspension rod (6) and the lifting foot (9) is welded.

9. The lifting claw for the numerical control vertical lathe according to claim 3, characterized in that the outer side of the contour pad (10) completely abuts against the inner wall of the product (11) at 60 degrees inside.

10. The lifting claw for the numerical control vertical lathe according to claim 3, characterized in that the lifting foot (9) is connected with the contour cushion block (10) through a bolt, and the outer side of the contour cushion block (10) is in a sawtooth shape.