Brake structure for a punch

Abstract

The utility model relates to punch press technical field discloses a brake structure of punch press, include: the upper portion of fuselage is equipped with crankshaft, and the upper portion of fuselage is equipped with the installation guide pillar, flywheel is through bearing cover and is equipped on the crankshaft, and the clutch disc is set up in the right side of flywheel, and the clutch disc has hollow installation shaft, and the disc body is installed on flywheel through fastener, and the disc body and the right side end surface of clutch disc are in abutment, and the piston is covered and is equipped on the installation shaft, and the circumference edge of piston is equipped with the off brake pad, and the off brake pad and the clutch disc between are equipped with elastic part, and the brake disc is covered and is equipped on the crank, and the lug connected with the installation guide pillar is equipped on the brake disc. The utility model reduces the component quantity for fixing the brake disc, reduces the installation cost and production cost, and simultaneously, the symmetrical installation guide pillar improves the stability of braking process and realizes the uniform stress of mechanical parts.

Description

Technical Field

[0001] This utility model relates to the field of punch press technology, and in particular to a braking structure for a punch press. Background Technology

[0002] The working principle of a punch press is based on a crank-connecting rod mechanism, which converts the rotational motion of the motor into the linear reciprocating motion of the slide block.

[0003] The existing structure of punch press brakes on the market involves mounting the brake disc via an additional brake disc bracket, and installing three mounting guide posts on the same side of the machine body, connecting the brake disc bracket to the mounting guide posts. With this structure, the mounting guide posts are all located in the semi-circular edge area of ​​the brake disc. During braking, the other semi-circular area lacks a mounting guide post, resulting in uneven force distribution and unstable braking. Furthermore, the use of a brake disc bracket increases production costs.

[0004] Therefore, improvements are needed. Summary of the Invention

[0005] The technical problem solved by this utility model is to address the deficiencies in the prior art by providing a braking structure for a punch press, thereby solving the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a braking structure for a punch press, comprising: a machine body, wherein a crankshaft is provided on the upper part of the machine body, and two mounting guide posts symmetrically arranged about the center of the crankshaft are provided on the outer wall of the upper part of the machine body; a flywheel, wherein a central hole is provided on the flywheel, and a bearing is provided at the central hole, and the flywheel is sleeved on the crankshaft through the bearing; a clutch disc, wherein the clutch disc is coaxially arranged with the flywheel, the clutch disc is located on the right side of the flywheel, and the center of the clutch disc has a hollow mounting shaft; and a disc body, wherein the disc body is mounted on the flywheel by fasteners, and the disc body and the right side of the clutch disc are aligned. The side ends abut against each other; a piston, which is sleeved on the mounting shaft, has a brake pad on its circumferential edge, the brake pad is located on the right side of the disc, and there is one or more elastic elements between the brake pad and the clutch disc; a brake disc, which is sleeved on the crank and located on the right side of the piston, has a lug connected to the mounting guide post; wherein, the piston is driven by an external air source, causing the brake pad to make close contact with the disc, and the flywheel drives the crankshaft to rotate; the piston is driven by the elastic elements, causing the brake pad to make close contact with the brake disc, thereby braking the crankshaft.

[0007] Furthermore, the lug is connected to the brake disc by fasteners.

[0008] Furthermore, the mounting shaft is connected to the brake disc via fasteners.

[0009] Furthermore, the clutch disc is connected to the crankshaft via a pin.

[0010] Furthermore, the disc body has a first friction plate on the end face facing the brake pad to improve friction.

[0011] Furthermore, the brake disc has a second friction pad on the end face facing the brake pad to increase friction.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: Optimized installation structure: This invention features symmetrical mounting guide posts on the upper outer wall of the brake body, about the crankshaft center. The brake disc is connected to the mounting guide posts via lugs. Compared to existing technologies where the mounting guide posts are all located at the semi-circular edge of the brake disc, leading to uneven force distribution and brake instability in the other semi-circular area, this symmetrical arrangement ensures more even force distribution on the brake disc during braking, effectively improving braking stability, reducing vibration and wear caused by uneven force distribution, and extending the service life of the braking structure and related components.

[0013] Cost reduction: Existing punch press braking structures use an additional brake disc bracket to mount the brake disc, increasing production costs. This invention eliminates the brake disc bracket, directly utilizing the lugs on the brake disc and mounting guide posts for assembly, simplifying the structure, reducing the number of parts, thereby lowering production costs and enhancing the product's market competitiveness.

[0014] Excellent transmission and braking performance: The piston's movement under different driving modes enables the flywheel to drive the crankshaft and achieves the crankshaft's braking function. When the piston is driven by an external air source, it causes the clutch pads to make close contact with the disc, realizing the power transmission from the flywheel to the crankshaft; when the piston is driven by an elastic element, it causes the clutch pads to make close contact with the brake disc, effectively braking the crankshaft. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the exploded structure of a brake.

[0017] Figure 3 This is a cross-sectional structural diagram of the brake.

[0018] Figure 4 This is a schematic diagram of the flywheel and the disc.

[0019] Figure 5 This is a schematic diagram of the brake disc structure.

[0020] Reference numerals: 1. Fuselage; 2. Crankshaft; 3. Mounting guide post; 4. Flywheel; 5. Bearing; 6. Clutch disc; 7. Mounting shaft; 8. Disc body; 9. Piston; 10. Clutch pad; 11. Brake disc; 12. Lug; 13. First friction pad; 14. Second friction pad. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings.

[0022] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as limiting this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. Moreover, "above," "over," and "on top" of a second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] In view of the technical problems described in the background art, as shown in the figure, a braking structure for a punch press is provided, comprising: a machine body 1, wherein a crankshaft 2 is provided on the upper part of the machine body 1, and two mounting guide posts 3 are provided on the outer wall of the upper part of the machine body 1 symmetrically arranged about the center of the crankshaft 2; a flywheel 4, wherein a central hole is provided on the flywheel 4, and a bearing 5 is provided at the central hole, and the flywheel 4 is sleeved on the crankshaft 2 through the bearing 5; a clutch disc 6, wherein the clutch disc 6 is coaxially arranged with the flywheel 4, the clutch disc 6 is located on the right side of the flywheel 4, and a hollow mounting shaft 7 is located at the center of the clutch disc 6; and a disc body 8, wherein the disc body 8 is mounted on the flywheel 4 by fasteners, and the disc body 8 abuts against the right end face of the clutch disc 6; A piston 9 is fitted onto the mounting shaft 7, and a brake pad 10 is provided on the circumferential edge of the piston 9. The brake pad 10 is located on the right side of the disc body 8, and one or more elastic elements are provided between the brake pad 10 and the clutch disc 6. A brake disc 11 is fitted onto the crank and located on the right side of the piston 9. The brake disc 11 is provided with a lug 12 that connects to the mounting guide post 3. The piston 9 is driven by an external air source, causing the brake pad 10 to make close contact with the disc body 8. The flywheel 4 drives the crankshaft 2 to rotate. The piston 9 is driven by the elastic elements, causing the brake pad 10 to make close contact with the brake disc 11, thereby braking the crankshaft 2.

[0024] The braking structure of this punch press mainly consists of components such as the machine body 1, flywheel 4, clutch disc 6, disc body 8, piston 9, and brake disc 11. These components work together to achieve the power transmission and braking functions of the punch press. Furthermore, the structure has been optimized, solving the problems of uneven braking force and high cost in existing technologies.

[0025] In the above technical solution, the mounting guide post 3 can adopt a cylindrical structure and be fixed to the outer wall of the machine body 1 by welding or bolt connection to ensure the stability of its connection with the machine body 1. There are two mounting guide posts 3, which are symmetrically distributed about the center of the crankshaft 2.

[0026] The flywheel 4 has a central hole, and a bearing 5 is installed in the central hole. The flywheel 4 is mounted on the crankshaft 2 through the bearing 5, so as to achieve coaxial rotation with the crankshaft 2.

[0027] The clutch disc 6 has a hollow mounting shaft 7 at its center, which is used to mount other components such as the piston 9.

[0028] The disc body 8 is mounted on the flywheel 4 using fasteners, such as bolts and nuts, to secure the disc body 8 to the end face of the flywheel 4. After installation, the right end face of the disc body 8 abuts against the right end face of the clutch disc 6, providing an action surface for subsequent contact of the clutch pads 10. Simultaneously, to increase the friction between the disc body 8 and the clutch pads 10, a suitable number of first friction plates 13 can be installed on the disc body 8.

[0029] The piston 9 is mounted on the mounting shaft 7 of the clutch disc 6 and can move axially on the mounting shaft 7. For example, under the action of an external air source, the piston 9 moves on the mounting shaft 7. A brake pad 10 is provided on the circumferential edge of the piston 9. The brake pad 10 is located on the right side of the disc body 8. The brake pad 10 can transmit the rotation of the flywheel 4 to the crank by abutting against the disc body 8; the brake pad 10 can also brake the crank by abutting against the brake disc 11. One or more elastic elements (not shown in the figure) are provided between the brake pad 10 and the clutch disc 6. The elastic elements can be springs, and the number and elastic coefficient of the springs are selected according to the actual braking requirements. For example, 2-4 springs can be provided, evenly distributed between the brake pad 10 and the clutch disc 6, ensuring that the brake pad 10 can evenly contact the brake disc 11 under the action of the elastic elements, achieving effective braking. To improve the friction between the brake disc 11 and the brake pad 10, a suitable number of second friction pads 14 can be installed on the brake disc 11.

[0030] The brake disc 11 is provided with a lug 12 that connects to the mounting guide post 3. The lug 12 is connected to the centrally symmetrical mounting guide post 3. Since the mounting guide post 3 is centrally symmetrical about the crankshaft 2, the brake disc 11 is subjected to more uniform force during braking.

[0031] In the above technical solution, the present invention eliminates the brake disc 11 bracket and directly uses the lug 12 on the brake disc 11 to assemble with the mounting guide post 3, which simplifies the structure, reduces the use of parts, and thus reduces production costs. At the same time, the present invention sets the mounting guide post 3 symmetrical about the center of the crankshaft 2. The brake disc 11 is connected to the mounting guide post 3 through the lug 12, which effectively improves the stability of braking, reduces vibration and wear caused by uneven force, and extends the service life of the braking structure and related components.

[0032] As an feasible technical solution, the lug 12 is connected to the brake disc 11 by fasteners. If a bolt connection is used, it ensures a secure and reliable connection between the lug 12 and the brake disc 11. The mounting shaft 7 is connected to the brake disc 11 by fasteners. If a bolt connection is used, it ensures a secure and reliable connection between the mounting shaft 7 and the brake disc 11. The clutch disc 6 is connected to the crankshaft 2 by a pin. The clutch disc 6 and crankshaft 2 are connected by a pin to ensure synchronous rotation and reliable connection between the clutch disc 6 and crankshaft 2.

[0033] The power transmission process is as follows: When the press needs to perform stamping work, the piston 9 is driven by an external air source. The external air source provides pressure to the piston 9, pushing it to move along the mounting shaft 7 towards the disc body 8. The piston 9 drives the clutch plate 10 to make close contact with the disc body 8. Since the piston 9 is connected to the mounting shaft 7, and the mounting shaft 7 is connected to the crank, the power of the flywheel 4 is transmitted to the crankshaft 2 through the disc body 8, the clutch plate 10, the piston 9, and the clutch disc 6, causing the crankshaft 2 to rotate. This realizes the power transmission from the flywheel 4 to the crankshaft 2, driving the press slide to perform linear reciprocating motion to complete the stamping work.

[0034] The braking process is as follows: When the press completes the stamping work or needs to be stopped urgently, the external air supply is stopped, and the piston 9 moves away from the disc 8 under the action of the elastic element. The elastic force of the elastic element pushes the piston 9, making the brake pad 10 and the brake disc 11 come into close contact. Since the brake disc 11 is mounted on the crank and connected to the clutch disc 6, the friction between the brake pad 10 and the brake disc 11 will hinder the rotation of the crankshaft 2, thereby effectively braking the crankshaft 2 and causing the press to stop quickly.

[0035] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A braking structure for a punch press, characterized in that, include: The fuselage has a crankshaft on its upper part, and two mounting guide posts symmetrically arranged about the center of the crankshaft are provided on the outer wall of the upper part of the fuselage. A flywheel, wherein a central hole is provided on the flywheel, a bearing is provided at the central hole, and the flywheel is sleeved on the crankshaft through the bearing; A clutch disc, which is coaxially arranged with the flywheel and located on the right side of the flywheel, has a hollow mounting shaft at its center; The disc body is mounted on the flywheel by fasteners, and the disc body abuts against the right end face of the clutch disc; A piston is sleeved on the mounting shaft. A brake pad is provided on the circumferential edge of the piston. The brake pad is located on the right side of the disc body. One or more elastic elements are provided between the brake pad and the clutch disc. A brake disc, which is fitted onto a crank and located on the right side of the piston, and has a lug that connects to the mounting guide post; The piston is driven by an external air source, causing the brake pads to come into close contact with the disc, and the flywheel drives the crankshaft to rotate; the piston is driven by the elastic element, causing the brake pads to come into close contact with the brake disc, thereby braking the crankshaft.

2. The braking structure of the punch press according to claim 1, characterized in that: The lug is connected to the brake disc by fasteners.

3. The braking structure of the punch press according to claim 1, characterized in that: The mounting shaft is connected to the brake disc by fasteners.

4. The braking structure of the punch press according to claim 1, characterized in that: The clutch disc is connected to the crankshaft via a pin.

5. The braking structure of the punch press according to claim 1, characterized in that: The disc body has a first friction plate on the end face facing the brake pad to improve friction.

6. The braking structure of the punch press according to claim 1, characterized in that: The brake disc has a second friction pad on the end face facing the brake pad to increase friction.

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