Sheet metal precision part punching device

Abstract

The utility model discloses a sheet metal precision part punching device, including the processing station, be provided with the support station on the processing station, be provided with the blanking mechanism on the processing station, the processing station bottom is provided with the collection box, be provided with the punching mechanism on the support station, the punching mechanism includes the drive cylinder setting on the processing station, be provided with the drive rod on the drive cylinder output, drive rod one end is provided with the cutter. Through the advance compression of second pressing plate and overall coverage, limit sheet metal part displacement from horizontal direction, from the vertical direction counteracts edge deformation force, make precision part cutout neatness promote, size error reduces, satisfy the processing requirement of precision part, reduce the rework rate, through the magnetic cooperation of jacking block and pressure block simultaneously, combine the elastic reset of second spring, can automatic jacking after punching sheet metal part, avoid the material of carding caused by the notch burr, need not manual cleaning, ensure that the device can continuous batch production, improve overall processing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of punching and cutting device technology, specifically a punching and cutting device for precision sheet metal parts. Background Technology

[0002] Precision parts are widely used components in industries such as automobiles, communications, and computers. Before they are used, they need to undergo a variety of processing steps, including punching. This requires the use of punching equipment. Currently, after the sheet metal is punched, the existing punching equipment requires manual unloading, which consumes a lot of manpower and has low work efficiency.

[0003] A search revealed a patent with publication number CN220216404U, which discloses a precision sheet metal punching device, relating to the field of punching device technology. This precision sheet metal punching device includes a worktable. The upper end of the worktable is equipped with a support frame, a guide rod, and a reset assembly. A cylinder is located on the outer side of the support frame, and a stamping plate is located at the output end of the cylinder. A cutter is located at the bottom of the stamping plate. A cutting hole is formed at the upper end of the worktable. Through the reset assembly, after the sheet metal punching is completed, the elastic potential energy of the auxiliary spring causes a top block to lift the sheet metal, preventing jamming between the sheet metal cut and the cutting hole. Through the unloading assembly, after the sheet metal punching is completed, the position of the cutter is identified by a moving groove, and the sheet metal is pushed to a storage position by a push plate, thereby automatically unloading the sheet metal and improving its working efficiency.

[0004] The aforementioned prior art lacks an effective limiting structure for sheet metal parts, which makes the sheet metal prone to displacement during the punching process, directly affecting the dimensional accuracy and production stability of precision parts. Utility Model Content

[0005] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0006] In view of the problems existing in the above and / or existing sheet metal precision punching devices, this utility model is proposed.

[0007] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution: A sheet metal precision part punching device includes a processing table, a support table on the processing table, a feeding mechanism on the processing table, a collection box at the bottom of the processing table, and a punching mechanism on the support table. The punching mechanism includes a drive cylinder mounted on a processing table, a drive rod mounted on the output end of the drive cylinder, and a cutter mounted on one end of the drive rod.

[0008] As a preferred embodiment of the sheet metal precision punching device of this utility model, a first pressure plate is provided on the outer wall of the drive rod, and first guide rods are symmetrically arranged on the processing table, with the first guide rods inserted into the first pressure plate and slidably installed.

[0009] As a preferred embodiment of the sheet metal precision punching device of this utility model, the first guide rods, which are symmetrically arranged, are externally inserted and slidably mounted with the same second pressure plate.

[0010] As a preferred embodiment of the sheet metal precision punching device of this utility model, a first spring is sleeved on the outside of the first guide rod, and the two ends of the first spring are respectively connected to the first pressure plate and the second pressure plate.

[0011] As a preferred embodiment of the sheet metal precision punching device of this utility model, punching openings corresponding to the shape of the cutting blade are provided on the outer walls of the processing table and the second pressure plate.

[0012] As a preferred embodiment of the sheet metal precision punching device of this utility model, the unloading mechanism includes a mounting plate disposed on the processing table, and clamping wheels and drive wheels are symmetrically arranged on the mounting plate.

[0013] As a preferred embodiment of the sheet metal precision punching device of this utility model, a motor is provided on the outer wall of the mounting plate, and the output end of the motor is connected to the drive wheel.

[0014] As a preferred embodiment of the sheet metal precision punching device of this utility model, the processing table has symmetrical mating holes on the top surface, and a top block is slidably installed in the mating holes. The collection box has symmetrically arranged second guide rods, and the second guide rods are inserted into the top blocks and slidably installed. A second spring is sleeved on the outside of the second guide rod, and the other end of the second spring is connected to the top block. Pressure blocks are symmetrically arranged under the bottom surface of the second pressure plate, and the pressure blocks are magnetically engaged with the top blocks.

[0015] As a preferred embodiment of the sheet metal precision punching device described in this utility model, limit blocks are symmetrically arranged on the top surface of the mating hole.

[0016] Compared with the prior art, the beneficial effects of this utility model are: When the drive cylinder moves the first pressure plate downward, the second pressure plate is pressed against the sheet metal part in advance by the buffer transmission of the first spring. The full coverage characteristic of the second pressure plate limits the horizontal deviation of the sheet metal part during punching. At the same time, the uniform pressure of the second pressure plate on the surface of the sheet metal part can counteract the edge deformation force generated by the cutter during punching, avoiding warping or deformation of the cut edge and ensuring the dimensional accuracy of precision parts. Before punching, the pressure block of the second pressure plate moves the top block downward by magnetic adsorption, making room for the sheet metal part to be transported. After punching, the second pressure plate moves upward, and the pressure block moves the top block upward. The top of the top block lightly touches the bottom of the sheet metal part, separating it from the punching cut, preventing the difficulty of picking up the material due to burrs and ensuring smooth material feeding. This device restricts the displacement of sheet metal parts horizontally and counteracts edge deformation forces vertically by pre-pressing and fully covering the second pressure plate. This improves the neatness of the cut edges of precision parts, reduces dimensional errors, meets the processing requirements of precision parts, and reduces rework rates. At the same time, through the magnetic cooperation between the top block and the pressure block, combined with the elastic reset of the second spring, the sheet metal parts can be automatically lifted after punching, avoiding jamming caused by burrs at the cut edges. This eliminates the need for manual cleaning, ensuring continuous batch production and improving overall processing efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a first-view structural diagram of the sheet metal precision part punching device of this utility model; Figure 2 This is a schematic diagram of the overall second-view structure of a sheet metal precision part punching device according to the present invention; Figure 3 for Figure 2 Enlarged view of the middle section structure; Figure 4 This is a schematic diagram of the top block position structure of a sheet metal precision part punching device according to the present invention.

[0018] In the diagram: 1. Processing table; 2. Support table; 3. Punching mechanism; 4. Unloading mechanism; 5. Collection box; 6. Drive wheel; 7. Clamping wheel; 8. Drive cylinder; 9. Drive rod; 10. Cutting blade; 11. First pressure plate; 12. First guide rod; 13. First spring; 14. Second pressure plate; 15. Mounting plate; 16. Pressure block; 17. Limiting block; 18. Top block; 19. Second guide rod; 20. Second spring; 21. Motor; 22. Mating hole. Detailed Implementation

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0020] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0022] Example Please see Figures 1-4 This utility model provides a technical solution: A sheet metal precision part punching device includes a processing table 1, which is a horizontal rigid platform that can stably support various functional components. A support platform 2 is fixedly installed in the middle of the top surface of the processing table 1. The support platform 2 is used to raise the installation height of the punching mechanism 3 and provide clearance space for the conveying of sheet metal parts. A feeding mechanism 4 for automatically conveying sheet metal parts is installed on one side of the processing table 1, which can realize the continuous conveying of sheet metal parts before and after punching and reduce manual intervention. A collection box 5 is fixedly installed at the bottom of the processing table 1 by a bracket. The collection box 5 is located directly below the punching position and is used to collect the precision parts or waste materials after punching to prevent them from being scattered and lost. A punching mechanism 3 for completing the punching action is installed on the top of the support platform 2. The punching mechanism 3 is the core for realizing the precise cutting of sheet metal parts.

[0023] The punching mechanism 3 includes a drive cylinder 8 fixed to the processing table 1 by a bracket. The drive cylinder 8 provides linear power for punching. Its output end extends vertically downward and is fixedly connected to a drive rod 9. The drive rod 9 is a rigid rod that can rise and fall synchronously with the output end of the drive cylinder 8. A cutter 10 is fixedly installed at the end of the drive rod 9 away from the drive cylinder 8 by bolts. The blade shape of the cutter 10 is adapted to the punching requirements of precision parts to ensure a clean cut. A first pressure plate 11 is horizontally fixedly sleeved on the outer wall of the drive rod 9. A pair of first guide rods 12 are symmetrically fixed on both sides of the drive rod 9 on the top surface of the processing table 1. The first guide rods 12 extend vertically and are inserted into and slidably installed with the first pressure plate 11. The first guide rods 12 can limit the rising and falling trajectory of the first pressure plate 11 to ensure that the first pressure plate 11 always moves smoothly in the vertical direction and avoids deviation.

[0024] A second pressure plate 14 is inserted into and slidably mounted on the outside of the symmetrically arranged first guide rod 12. The second pressure plate 14 is located below the first pressure plate 11, and its area is adapted to the size of the sheet metal part to be punched, so that it can fully cover the surface of the sheet metal part during punching. A first spring 13 is sleeved on the outside of the first guide rod 12. One end of the first spring 13 abuts against the bottom surface of the first pressure plate 11, and the other end abuts against the top surface of the second pressure plate 14. The first spring 13 has elastic buffering capacity, which can make the downward force of the first pressure plate 11 evenly transmitted to the second pressure plate 14, while ensuring that the second pressure plate 14 can contact the sheet metal part in advance before the cutter 10. The top surface of the processing table 1 and the bottom surface of the second pressure plate 14 are both provided with punching holes that completely correspond to the shape of the cutter 10. The punching holes provide clearance for the cutter 10 to avoid collision and damage between the cutter 10 and the table or pressure plate, while ensuring that the punched parts can fall smoothly.

[0025] The unloading mechanism 4 includes a mounting plate 15 fixed to the feed end of the processing table 1 by bolts. Several clamping wheels 7 and a pair of drive wheels 6 are symmetrically mounted on the mounting plate 15 along the sheet metal conveying direction. The wheel surfaces of the clamping wheels 7 and the drive wheels 6 are both in contact with the surface of the sheet metal part to form a clamping and conveying mechanism for the sheet metal part. A motor 21 is fixedly mounted on the outer wall of the mounting plate 15 by a bracket. The output end of the motor 21 is fixedly connected to the central shaft of the drive wheel 6 by a coupling. After the motor 21 is started, it can drive the drive wheel 6 to rotate. With the driven rotation of the clamping wheels 7, the sheet metal part is conveyed to the punching position along a preset trajectory.

[0026] Symmetrical mating holes 22 are provided on the top surface of the processing table 1, corresponding to the two sides of the punching cut. A top block 18 is vertically slidably installed in the mating hole 22. The top of the top block 18 is slightly lower than the top surface of the processing table 1 to avoid affecting the conveying of sheet metal parts. A pair of second guide rods 19 are symmetrically fixed inside the collection box 5 directly below the mating hole 22. The second guide rods 19 extend vertically and insert the top blocks 18, and the second guide rods 19 and the top blocks 18 are slidably engaged. The second guide rods 19 can limit the lifting trajectory of the top blocks 18 to prevent the top blocks 18 from deviating. A second spring 2 is sleeved on the outside of the second guide rods 19. 0. One end of the second spring 20 abuts against the bottom surface of the inner wall of the collection box 5, and the other end abuts against the bottom surface of the top block 18. The second spring 20 can assist the top block 18 in resetting. A pressure block 16 is symmetrically fixed under the bottom surface of the second pressure plate 14 at the position corresponding to the top block 18. The pressure block 16 and the top block 18 are opposite magnetic poles and have magnetic attraction capabilities. They can synchronously drive the top block 18 to move when they are close to each other. A limit block 17 is symmetrically fixed on the top surface of the mating hole 22. The limit block 17 can limit the maximum upward movement height of the top block 18 and prevent the top block 18 from moving too high and affecting the conveying of sheet metal parts.

[0027] When in use, start the motor 21, which drives the drive wheel 6 to rotate. The drive wheel 6, in conjunction with the driven rotation of the clamping wheel 7, transports the sheet metal part along the conveying trajectory on the top surface of the processing table 1 toward the punching mechanism 3 until the position of the sheet metal part to be punched is moved directly above the punching opening of the processing table 1 and the second pressure plate 14. Then the motor 21 stops, and the sheet metal part is positioned.

[0028] Then, the drive cylinder 8 of the punching mechanism 3 is activated. The output end of the drive cylinder 8 extends downward, driving the drive rod 9 and the cutter 10 to move down synchronously. At the same time, the drive rod 9 drives the first pressure plate 11 to move vertically down along the first guide rod 12. The first pressure plate 11 transmits pressure to the second pressure plate 14 through the first spring 13, pushing the second pressure plate 14 to move down synchronously along the first guide rod 12. The downward speed of the second pressure plate 14 is slightly faster than that of the cutter 10. Before the cutter 10 contacts the sheet metal part, the second pressure plate 14 has already adhered to the surface of the sheet metal part. By fully covering the sheet metal part, it firmly presses the sheet metal part onto the top surface of the processing table 1, preventing the sheet metal part from shifting due to force during punching. At the same time, the full pressing of the second pressure plate 14 can also limit the deformation of the cut edge of the sheet metal part, ensuring that the surface of the sheet metal part is flat during punching, providing a stable foundation for subsequent precise cutting.

[0029] The drive cylinder 8 continues to push the drive rod 9 downwards, and the cutter 10 passes through the punching opening of the second pressure plate 14, contacts the sheet metal part to be punched, and completes the punching. After the punching is completed, the cutter 10 returns to its original position upwards with the output end of the drive cylinder 8, the first pressure plate 11 moves upwards synchronously, the first spring 13 gradually recovers its elastic deformation, and drives the second pressure plate 14 to move upwards slowly, releasing the pressure on the sheet metal part. During this process, the pressure block 16 on the bottom surface of the second pressure plate 14 moves upwards with the pressure plate, and drives the top block 18 to slide upwards along the second guide rod 19. The top of the top block 18 gently touches the bottom of the punched sheet metal part, separating the sheet metal part from the punching opening of the processing table 1, avoiding the sheet metal part from being stuck in the punching opening due to the burrs of the cutting opening, and ensuring smooth subsequent material feeding.

[0030] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A sheet metal precision part punching device, characterized in that, The equipment includes a processing table (1), a support table (2) on the processing table (1), a feeding mechanism (4) on the processing table (1), a collection box (5) at the bottom of the processing table (1), and a punching mechanism (3) on the support table (2). The punching mechanism (3) includes a drive cylinder (8) on the processing table (1), a drive rod (9) on the output end of the drive cylinder (8), and a cutter (10) on one end of the drive rod (9).

2. The sheet metal precision part punching device according to claim 1, characterized in that, A first pressure plate (11) is provided on the outer wall of the drive rod (9), and a first guide rod (12) is symmetrically provided on the processing table (1), and the first guide rod (12) is inserted into the first pressure plate (11) and slidably installed.

3. The sheet metal precision part punching device according to claim 2, characterized in that, The first guide rod (12) is symmetrically arranged and has the same second pressure plate (14) inserted and slidably installed on its exterior.

4. The sheet metal precision part punching device according to claim 2, characterized in that, The first guide rod (12) is fitted with a first spring (13), and the two ends of the first spring (13) are connected to the first pressure plate (11) and the second pressure plate (14) respectively.

5. A sheet metal precision part punching device according to claim 3, characterized in that, Both the processing table (1) and the outer wall of the second pressure plate (14) are provided with punching holes corresponding to the shape of the cutter (10).

6. The sheet metal precision part punching device according to claim 1, characterized in that, The unloading mechanism (4) includes a mounting plate (15) set on the processing table (1), and clamping wheels (7) and driving wheels (6) are symmetrically arranged on the mounting plate (15).

7. A sheet metal precision part punching device according to claim 6, characterized in that, A motor (21) is provided on the outer wall of the mounting plate (15), and the output end of the motor (21) is connected to the drive wheel (6).

8. A sheet metal precision part punching device according to claim 4, characterized in that, The processing table (1) has symmetrical mating holes (22) on its top surface. A top block (18) is slidably installed in the mating hole (22). A second guide rod (19) is symmetrically arranged in the collection box (5). The second guide rod (19) is inserted into the top block (18) and slidably installed. A second spring (20) is sleeved on the outside of the second guide rod (19). The other end of the second spring (20) is connected to the top block (18). A pressure block (16) is symmetrically arranged under the bottom surface of the second pressure plate (14). The pressure block (16) and the top block (18) are magnetically engaged.

9. A sheet metal precision part punching device according to claim 8, characterized in that, Limiting blocks (17) are symmetrically arranged on the top surface of the mating hole (22).

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