CN112170656A

CN112170656A - Hardware stamping device

Info

Publication number: CN112170656A
Application number: CN202011157861.2A
Authority: CN
Inventors: 任益彬
Original assignee: Tianchang Yunlian Pipeline Co ltd
Current assignee: Tianchang Yunlian Pipeline Co ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2021-01-05

Abstract

The invention discloses a hardware stamping device, which comprises: the fixed platform is used for placing hardware; the movable platform is arranged above the fixed platform, the bottom of the movable platform is used for installing a stamping die, and the stamping die is used for vertically moving along with the movable platform so as to perform stamping operation on the hardware; the hydraulic system comprises an oil cylinder arranged above the movable platform; a flexible mechanism including a connecting member, a spring, and a sliding post; a sliding cavity is formed downwards from the upper end of the connecting part; the sliding column is formed at the lower end of a piston rod of the oil cylinder and extends into the sliding cavity; the spring is arranged in the sliding cavity; the lower end of the connecting part is connected to the movable platform. The piston rod of the oil cylinder forms a flexible stamping part with certain rigidity by additionally arranging the flexible mechanism, so that the hardware can be effectively prevented from being damaged due to the impact effect.

Description

Hardware stamping device

Technical Field

The invention relates to a hardware stamping device.

Background

In the prior art, a hydraulic system is generally utilized to punch a hardware, specifically, a punching die is arranged at the lower end of a piston rod of a hydraulic oil cylinder, and the hydraulic oil cylinder is controlled to stretch out and draw back by a hydraulic valve so that the hardware is bent or has a stepped structure.

However, the following disadvantages exist when stamping hardware using a hydraulic system:

1. because the piston rod is the rigid piece, the moment that stamping die and hardware contact is rigid contact, therefore, stamping die's impact easily makes the hardware damage, for example, makes the hardware break, makes the ladder region part fracture of hardware.

2. At the moment that stamping die accomplishes the punching press to the hardware and resets along with the piston rod, stamping die removes the pressure to the hardware in the twinkling of an eye, and at this moment, the hardware can produce the resetting of great degree by the punching press part, and then leads to the hardware can not obtain anticipated deformation effect.

Disclosure of Invention

In order to solve the technical problems in the prior art, an embodiment of the invention provides a hardware stamping device.

In order to solve the technical problem, the embodiment of the invention adopts the following technical scheme:

a hardware stamping device, comprising:

the fixed platform is used for placing hardware;

the movable platform is arranged above the fixed platform, the bottom of the movable platform is used for installing a stamping die, and the stamping die is used for vertically moving along with the movable platform so as to perform stamping operation on the hardware;

the hydraulic system comprises an oil cylinder arranged above the movable platform;

a flexible mechanism including a connecting member, a spring, and a sliding post;

a sliding cavity is formed downwards from the upper end of the connecting part; the sliding column is formed at the lower end of a piston rod of the oil cylinder and extends into the sliding cavity; the spring is arranged in the sliding cavity;

the lower end of the connecting part is connected to the movable platform.

Preferably, the flexible mechanism further comprises an air pressure control valve; the air pressure control valve comprises a first air pressure one-way valve and a second air pressure one-way valve;

an inlet of the first pneumatic one-way valve is communicated with the sliding cavity, and an outlet of the second pneumatic one-way valve is communicated with the sliding cavity;

the opening pressure of the first pneumatic valve is greater than that of the second pneumatic valve.

Preferably, a switch valve is arranged between the second pneumatic valve and the sliding cavity.

Preferably, the sliding column is in threaded connection with the piston rod;

an upward annular stepped surface is formed between the sliding column and the piston rod;

the upper portion cover of adapting unit is equipped with the backstop cover, the upper end of backstop cover is formed with and is used for right the spacing pressing face of annular ladder face.

Preferably, the bottom of the sliding column is provided with a threaded hole, a top disc is arranged below the sliding column, a stud is formed at the upper end of the top disc, and the stud is screwed into the threaded hole; wherein:

the top disc is used for pressing against the upper end of the spring, and the top disc adjusts the pre-tightening force of the spring by screwing the stud.

Preferably, a flange is formed at the bottom of the connecting part, and the flange is connected to the upper end surface of the movable platform by a fastener.

Preferably, four guide posts are arranged on the fixed platform, the four guide posts penetrate through the movable platform, and the movable platform vertically slides along the guide posts.

Compared with the prior art, the hardware stamping device disclosed by the invention has the beneficial effects that:

1. the piston rod of the oil cylinder forms a flexible stamping part with certain rigidity by additionally arranging the flexible mechanism, so that the hardware can be effectively prevented from being damaged due to the impact effect.

2. The rebound resetting of the hardware after the stamping operation can be effectively reduced by additionally arranging the flexible mechanism.

3. The rigidity of the flexible mechanism can be adjusted by screwing the top disc, and the rigidity of the flexible mechanism can be adjusted by charging and discharging air into the sliding cavity through the second air pressure one-way valve.

The summary of various implementations or examples of the technology described in this disclosure is not a comprehensive disclosure of the full scope or all features of the disclosed technology.

Drawings

In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. Like reference numerals having letter suffixes or different letter suffixes may represent different instances of similar components. The drawings illustrate various embodiments, by way of example and not by way of limitation, and together with the description and claims, serve to explain the inventive embodiments. The same reference numbers will be used throughout the drawings to refer to the same or like parts, where appropriate. Such embodiments are illustrative, and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.

Fig. 1 is a schematic perspective view of a hardware stamping device according to an embodiment of the present invention.

Fig. 2 is a schematic plan view of a hardware stamping device according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a flexible mechanism in a hardware punching device according to an embodiment of the present invention.

Reference numerals:

10-a fixed platform; 20-a movable platform; 30-oil cylinder; 31-a piston rod; 40-a flexible mechanism; 41-a connecting member; 411-a slide chamber; 412-flange plate; 42-a sliding column; 421-a threaded hole; 43-a spring; 44-a top tray; 441-stud bolt; 45-stop sleeve; 46-an annular step surface; 47-first pneumatic check valve; 48-a second pneumatic check valve; 481-switching valve; 50-guide post.

Detailed Description

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

To maintain the following description of the embodiments of the present invention clear and concise, a detailed description of known functions and known components of the invention have been omitted.

As shown in fig. 1 to 3, an embodiment of the present invention discloses a hardware punching apparatus, including: fixed platform 10, movable platform 20, hydraulic system, compliant mechanism 40, and guide posts 50.

The guide posts 50 include four, and four guide posts 50 are provided on the fixed platform 10. The fixed platform 10 is used for placing hardware with stamping.

The movable platform 20 is located above the fixed platform 10, and a stamping die (not shown in the drawings) is mounted at the bottom of the movable platform 20, and the stamping die performs stamping operation on hardware on the fixed platform 10 as the movable platform 20 moves downwards, so that the hardware obtains a stepped structure and/or a bent structure.

The hydraulic system includes a cylinder 30 and a hydraulic control valve that controls extension and contraction of a piston rod 31 of the cylinder 30. The oil cylinder 30 is disposed above the movable platform 20, and other hydraulic components such as a hydraulic control valve are disposed in a tank at the top.

The flexible mechanism 40 includes: a connecting member 41, a sliding post 42, a spring 43, a stopper sleeve 45, a top plate 44, and an air pressure control valve.

As shown in fig. 2, the connecting member 41 has a substantially cylindrical shape, and a flange 412 is formed at the bottom of the connecting member 41, and the flange 412 is fixed to the upper end surface of the movable floor 20 by a fastener.

As shown in fig. 3, a slide chamber 411 is formed downward from the upper end surface of the connecting part 41, and the slide chamber 411 is a linear chamber; the upper end of the sliding column 42 is connected to the lower end of the piston rod 31 of the oil cylinder 30 through a threaded connection, an upward annular stepped surface 46 is formed between the upper end and the piston rod 31, and the sliding column 42 extends into the sliding cavity 411.

A stop sleeve 45 is sleeved on the upper portion of the connecting part 41, and the stop sleeve 45 has a pressing surface for limiting the annular stepped surface 46, so that the sliding column 42 is limited in the sliding cavity 411, and the piston rod 31 is connected with the connecting part 41, and the piston rod 31 is connected with the movable platform 20.

The spring 43 is disposed in the slide chamber 411 and below the slide post 42. The top disk 44 is located below the sliding column 42, a stud 441 is formed at the upper end of the top disk 44, a threaded hole 421 is formed in the lower end surface of the sliding column 42, the stud 441 is screwed into the threaded hole 421 and is in threaded connection with the threaded hole 421, so that the height of the top disk 44 can be adjusted by screwing the stud 441, the top disk 44 is pressed against the upper end of the spring 43, and therefore, the compression amount of the spring 43 can be changed by adjusting the height of the top disk 44.

Based on the above, the flexible mechanism 40 is provided so that the piston rod 31 corresponds to a flexible rod having a certain rigidity, and the rigidity of the flexible rod can be adjusted by adjusting the rigidity of the top disk 44.

The air pressure control valve includes: a first pneumatic check valve 47 and a second pneumatic check valve 48. The air inlet of the first air pressure one-way valve 47 is communicated with the sliding cavity 411, the air outlet of the second air pressure one-way valve 48 is communicated with the sliding cavity 411, the opening pressure of the first air pressure one-way valve 47 is far greater than that of the second air pressure one-way valve 48, and a switch valve 481 is arranged between the second air pressure one-way valve 48 and the sliding cavity 411.

Based on the above, the switch valve 481 can be opened, and the second pneumatic check valve 48 can be used to fill the sliding chamber 411 with a gas under a certain pressure, so that when the sliding column 42 slides downwards in the sliding chamber 411, the gas in the sliding chamber 411 can be compressed to a certain extent, so that the gas in the sliding chamber 411 also provides a certain rigidity for the punching process of the piston rod 31, and the higher the pressure of the gas is, the higher the rigidity provided by the gas is.

The first pneumatic check valve 47 is used for opening when the pressure gas in the sliding cavity 411 rises to a certain degree, so as to perform pressure relief on the gas.

The working principle of the above-mentioned punching device is described as follows:

the hydraulic control valve controls the piston rod 31 of the oil cylinder 30 to move downwards, the piston rod 31 drives the movable platform 20 and the stamping die to move downwards through the flexible mechanism 40, and in the process that the stamping die contacts the hardware, the spring 43 and the gas in the sliding cavity 411 are compressed to a certain degree, so that the impact action of the stamping die on the hardware is buffered to a certain extent, particularly the moment that the stamping die just contacts the hardware.

After the stamping die moves to the lowest point to complete the stamping of the hardware, the piston rod 31 of the hydraulic control valve control cylinder 30 moves upwards, in the process, although the piston rod 31 moves upwards instantly, under the action of the elastic force of the spring 43 in the flexible mechanism 40 and the pressure in the sliding cavity 411, the stamping die is still pressed on the hardware with a certain pre-tightening force (the pre-tightening force is gradually reduced), and the rebound resetting of the hardware can be limited to the maximum extent.

If the pressure of piston rod 31 is too big, lead to the atmospheric pressure in the sliding chamber 411 too big, first atmospheric pressure check valve 47 opens, and then makes the gaseous pressure release in the sliding chamber 411, and then can effectively avoid this hardware because of the too big damage of pressure, scrap.

The stamping device provided by the invention has the advantages that:

1. the piston rod 31 of the oil cylinder 30 forms a flexible stamping part with certain rigidity by additionally arranging the flexible mechanism 40, so that the hardware can be effectively prevented from being damaged due to the impact effect.

2. The springback reset of the hardware after the stamping operation can be effectively reduced by additionally arranging the flexible mechanism 40.

3. The rigidity of the flexible mechanism 40 can be adjusted by screwing the top disk 44, and the rigidity of the flexible mechanism 40 can be adjusted by charging and discharging air into the sliding chamber 411 through the second air pressure one-way valve 48.

Moreover, although exemplary embodiments have been described herein, the scope of the present invention includes any and all embodiments based on the present invention with equivalent elements, modifications, omissions, combinations (e.g., of various embodiments across), adaptations or alterations. The elements of the claims are to be interpreted broadly based on the language employed in the claims and not limited to examples described in the present specification or during the prosecution of the application, which examples are to be construed as non-exclusive. It is intended, therefore, that the specification and examples be considered as exemplary only, with a true scope and spirit being indicated by the following claims and their full scope of equivalents.

The above description is intended to be illustrative and not restrictive. For example, the above-described examples (or one or more versions thereof) may be used in combination with each other. For example, other embodiments may be used by those of ordinary skill in the art upon reading the above description. In addition, in the above-described embodiments, various features may be grouped together to streamline the disclosure. This should not be interpreted as an intention that a disclosed feature not claimed is essential to any claim. Rather, inventive subject matter may lie in less than all features of a particular disclosed embodiment. Thus, the following claims are hereby incorporated into the detailed description as examples or embodiments, with each claim standing on its own as a separate embodiment, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations. The scope of the invention should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.

Claims

1. The utility model provides a hardware stamping device which characterized in that includes:

the fixed platform is used for placing hardware;

the lower end of the connecting part is connected to the movable platform.

2. The hardware stamping apparatus of claim 1, wherein the compliant mechanism further comprises a pneumatic control valve; the air pressure control valve comprises a first air pressure one-way valve and a second air pressure one-way valve;

3. A hardware stamping device according to claims 1-2, wherein a switch valve is provided between the second pneumatic valve and the slide chamber.

4. The hardware stamping device of claims 1-2, wherein the sliding post is threaded with the piston rod;

5. The hardware stamping device according to claims 1-2, wherein a threaded hole is formed in the bottom of the sliding column, a top plate is arranged below the sliding column, a stud is formed at the upper end of the top plate, and the stud is screwed into the threaded hole; wherein:

6. The hardware stamping device of claim 1, wherein the bottom of the connecting member is formed with a flange that is connected to the upper end surface of the movable platform by fasteners.

7. The hardware stamping device according to claim 1, wherein four guide posts are arranged on the fixed platform, the four guide posts penetrate through the movable platform, and the movable platform vertically slides along the guide posts.