CN216420782U

CN216420782U - Sliding block lifting device of notching press

Info

Publication number: CN216420782U
Application number: CN202121936251.2U
Authority: CN
Inventors: 高晓锋
Original assignee: Changzhou Yaohua Electric Machinery Equipment Co ltd
Current assignee: Changzhou Yaohua Electric Machinery Equipment Co ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-05-03
Anticipated expiration: 2031-08-17

Abstract

The utility model relates to the technical field of processing equipment, in particular to a sliding block lifting device of a notching press, which comprises a machine body and a crankshaft, wherein two ends of the crankshaft are rotatably connected with the machine body, the middle section of the crankshaft is rotatably connected with an eccentric gear, the eccentric gear is meshed with a rack, the rack is slidably connected with a base body, the lower end of the base body is connected with a sliding block, and the base body is provided with a self-driving mechanism for driving the rack to move.

Description

Sliding block lifting device of notching press

Technical Field

The utility model relates to the technical field of processing equipment, in particular to a sliding block lifting device of a notching press.

Background

The silicon steel sheet notching press is mainly used for completing the punching work of the motor stator and rotor sheet slotted holes. Because the notching press has high punching times, the designed stroke is smaller for reducing vibration. In recent years, with the increase in demand for automation of notching, new requirements have been made on the performance of notching presses. Because the stroke of the sliding block of the notching press is small, the piece is very inconvenient to take and place by the manipulator, and the sliding block lifting device can well solve the problem. The lifting device can ensure that the stroke of the sliding block is smaller during normal blanking, and the sliding block is lifted by a section of height after the blanking is finished, so that the manipulator can take and place the sheet conveniently. At present, the notching press with a plurality of lifting devices is applied, a lever type structure is adopted, the weight of a moving part is large, and the energy consumption loss is also large. For another example, the patent with the name of CN201910376240.4 is a servo slider lifting mechanism for a high-speed notching press, which is driven by a motor, and the structure is complicated and has large vibration.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the existing lifting device in the prior art is complex in structure, the utility model provides the sliding block lifting device of the notching press, which is simple in structure.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

the utility model provides a notching press slider hoisting device, includes fuselage and bent axle, the both ends of bent axle rotate with the fuselage and are connected, bent axle middle section rotate and be connected with eccentric gear, eccentric gear meshing have the rack, rack sliding connection has the base member, base member lower extreme link block, the base member on be equipped with the self-actuating mechanism who drives the rack and remove.

Furthermore, the self-driving mechanism comprises a piston assembly connected with the rack, and a first cavity and a second cavity are respectively arranged on two sides of the piston assembly.

Furthermore, the base body is a cylinder body, the piston assembly comprises a first piston and a second piston which are respectively fixed on two sides of the rack, the first cavity is arranged between the first piston and the cylinder body, and the second cavity is arranged between the second piston and the cylinder body.

Furthermore, the cylinder body is fixedly connected or integrally formed with a connecting rod, the cylinder body and the connecting rod form a swinging piece, and the head of the connecting rod is provided with a ball head rotationally connected with a sliding block.

Furthermore, the eccentric gear is connected with the swinging piece through a sliding bearing.

Furthermore, the cylinder body is provided with a positioning key which extends into the cylinder body and is used for limiting the rack to rotate relative to the cylinder body.

Furthermore, cylinder covers are detachably fixed at two ends of the cylinder body.

Furthermore, sealing rings are arranged between the first piston and the cylinder body, and between the second piston and the cylinder body.

Furthermore, the eccentric gear is rotatably connected with the crankshaft through a needle bearing, spacer bushes are arranged on two sides of the inner ring of the needle bearing, and eccentric glands are arranged at the joint of two sides of the outer ring of the needle bearing and the eccentric gear.

Furthermore, the middle section of the crankshaft is connected with a balance block through a key.

Has the advantages that:

(1) the self-driving mechanism of the eccentric gear in the utility model adopts a cylinder and piston driving mode, so that the weight of moving parts of the notching press is greatly reduced, and the notching press is light and portable as a whole;

(2) the rack is directly arranged in the cylinder body, the structure is integrated, the cylinder body does not need to be arranged on the machine body, and therefore the occupied space is reduced, the installation is convenient, the number of transmission mechanisms is small, and the movement precision is high;

(3) compared with a motor and other driving forms, the self-driving mechanism can reduce vibration and energy consumption.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

FIG. 1 is a longitudinal cross-sectional view of the ram lifting device of the notching press of the present invention in an initial position;

FIG. 2 is a cross-sectional view of the ram lifting device of the notching press of the present invention in an initial position;

FIG. 3 is a longitudinal sectional view of the eccentric gear of the ram lifting device of the notching press of the present invention rotated 180 degrees;

figure 4 is a cross-sectional view of the eccentric gear of the ram lifting device of the notching press rotated 90 deg..

The device comprises a cylinder cover 1, a cylinder cover 2, a sealing ring 31, a first piston 32, a second piston 4, a rack 5, a swinging piece 51, a cylinder body 52, a connecting rod 6, a positioning key 7, a crankshaft 8, an eccentric gear 9, a needle bearing 10, a ball head 11, a sliding block 12, a machine body 13, a sliding bearing 14, an eccentric gland 15, a balance weight 16, a key 17, a bearing seat 18 and a spacer bush.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

As shown in fig. 1-4, a notching press slider lifting device comprises a machine body 12 and a crankshaft 7, wherein two ends of the crankshaft 7 are rotatably connected with the machine body 12, specifically, a bearing seat 17 is fixed on the machine body 12, a bearing is installed between the crankshaft 7 and the bearing seat 17, an eccentric gear 8 is rotatably connected to the middle section of the crankshaft 7, a rack 4 is meshed with the eccentric gear 8, the rack 4 is slidably connected with a base body, the lower end of the base body is connected with a slider, the base body is provided with a self-driving mechanism for driving the rack 4 to move, the self-driving mechanism can be a motor, or the self-driving mechanism comprises a piston assembly connected with the rack 4, and a first cavity and a second cavity are respectively arranged on two sides of the piston assembly.

Self-driving mechanisms include, but are not limited to, the following embodiments:

example 1:

the rack 4 is connected with the base body in a sliding mode through guide rails and the like, a motor is arranged on the base body, the output end of the motor is connected with a lead screw, and the rack is fixed with a lead screw nut of the lead screw.

Example 2:

the rack 4 and the base body are connected in a sliding mode through guide rails and the like, the base body is provided with an air cylinder, and then a piston rod of the air cylinder is linked with the rack.

Example 3:

in the utility model, the base body is a cylinder body 51, the cylinder body 51 is sleeved outside the rack 4, the piston assembly comprises a first piston 31 and a second piston 32 which are respectively fixed on two sides of the rack 4, which is equivalent to that the rack 4 is in sliding connection with the base body through the first piston 31 and the second piston, the first cavity is arranged between the first piston 31 and the cylinder body 51, and the second cavity is arranged between the second piston 32 and the cylinder body 51. The piston is arranged in the cylinder body 51, the structure is integrated, and the occupied space is reduced.

The cylinder 51 is fixedly connected or integrally formed with a connecting rod 52, the cylinder 51 and the connecting rod 52 form a swinging piece 5, and the head of the connecting rod 52 is provided with a ball 10 rotatably connected with a slide block 11.

The eccentric gear 8 is connected with the swinging piece through a sliding bearing 13.

The cylinder body 51 is provided with a positioning key 6 which extends into the cylinder body 51 and is used for limiting the rack 4 to rotate relative to the cylinder body 51, and the rack 4 can be provided with a limiting groove matched with the positioning key 6 and other structures.

The cylinder head 1 is detachably fixed to both ends of the cylinder block 51.

The first piston 31 and the second piston 32 are provided with a seal ring 2 between the cylinder 51.

The eccentric gear 8 is rotatably connected with the crankshaft 7 through a needle bearing 9. Spacer bushes 18 are arranged on two sides of an inner ring of the needle bearing 9, and an eccentric gland 14 is arranged at the joint of two sides of an outer ring of the needle bearing 9 and the eccentric gear 8. The middle section of the crankshaft 7 is connected with a balance weight 15 through a key 16. The crankshaft 7 may be provided with a snap ring or the like for restricting the position of the balance weight 15, the spacer 8, or the like.

The working principle is as follows:

and O is the axis of the bearing seat 17, O ' is the axis of the middle section of the crankshaft 7, and O ' is the axis of the eccentric gear 8, so that during normal blanking, the required working stroke is formed when the crankshaft 7 rotates due to the eccentricity between O ' and O. After blanking, the slide block 11 is located at the top dead center, as shown in fig. 1 and 2, and then the slide block 11 lifting process is started; the first cavity of the cylinder 51 is filled with air, the first piston 31 pushes the rack 4 to move right, the rack 4 drives the eccentric gear 8 to rotate clockwise, and since the axis O' of the middle section of the crankshaft 7 is fixed, the axis O ″ of the eccentric gear 8 drives the swinging member 5 (the cylinder 51, the connecting rod 52 and the ball head 10) and the slider 11 connected through the ball head 10 to move upward together in the rotating process (see fig. 3 and 4, and L1 and L2 are lifting distances), wherein fig. 3 only shows the form that the eccentric gear 8 rotates 180 degrees, actually, in the present invention, the rotating angle stroke of the eccentric gear 8 is set to 90 degrees, as shown in fig. 4. After the manipulator takes and puts the piece, the second cavity of the cylinder 51 is filled with air, the second piston 32 pushes the rack 4 to move left, the slide block 11 returns to the position before lifting, and the operation is repeated.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The sliding block lifting device of the notching press is characterized by comprising a machine body (12) and a crankshaft (7), wherein two ends of the crankshaft (7) are rotatably connected with the machine body (12), the middle section of the crankshaft (7) is rotatably connected with an eccentric gear (8), the eccentric gear (8) is meshed with a rack (4), the rack (4) is slidably connected with a base body, the lower end of the base body is connected with a sliding block, and a self-driving mechanism for driving the rack (4) to move is arranged on the base body.

2. The notching press slide lifting device of claim 1, wherein: the self-driving mechanism comprises a piston assembly connected with a rack (4), and a first cavity and a second cavity are respectively arranged on two sides of the piston assembly.

3. The notching press slide lifting device of claim 2, wherein: the base body is a cylinder body (51), the piston assembly comprises a first piston (31) and a second piston (32) which are respectively fixed on two sides of the rack (4), the first cavity is arranged between the first piston (31) and the cylinder body (51), and the second cavity is arranged between the second piston (32) and the cylinder body (51).

4. The notching press slide lifting device of claim 3, wherein: the cylinder body (51) is fixedly connected or integrally formed with a connecting rod (52), the cylinder body (51) and the connecting rod (52) form a swinging piece (5), and the head of the connecting rod (52) is provided with a ball head (10) rotatably connected with a sliding block (11).

5. The notching press slide lifting device of claim 4, wherein: the eccentric gear (8) is connected with the swinging piece (5) through a sliding bearing (13).

6. The notching press slide lifting device of claim 3, wherein: and a positioning key (6) which extends into the cylinder body (51) and is used for limiting the rotation of the rack (4) relative to the cylinder body (51) is arranged on the cylinder body (51).

7. The notching press slide lifting device of claim 6, wherein: and the two ends of the cylinder body (51) are detachably fixed with the cylinder cover (1).

8. The notching press slide lifting device of claim 3, wherein: and sealing rings (2) are arranged between the first piston (31) and the cylinder body (51) and between the second piston (32) and the cylinder body (51).

9. The notching press slide lifting device of claim 1, wherein: the eccentric gear (8) is rotatably connected with the crankshaft (7) through a needle bearing (9), spacer bushes (18) are arranged on two sides of an inner ring of the needle bearing (9), and an eccentric gland (14) is arranged at a joint of two sides of an outer ring of the needle bearing (9) and the eccentric gear (8).

10. The notching press slide lifting device of claim 1, wherein: the middle section of the crankshaft (7) is connected with a balance block (15) through a key (16).