Punching machine with adjustable stroke

Abstract

The utility model discloses a stroke-adjustable punching machine, which relates to the field of punching machine structures and comprises a fixing frame, a punching table arranged on the fixing frame, a punching head arranged above the punching table and capable of ascending and descending on the fixing frame, a driving component arranged at the top of the punching table and hinged with the punching head, and an adjusting component arranged between the driving component and the punching head. The height of the punching head on the fixing frame in the initial state can be adjusted; according to the stroke-adjustable punching machine, the height of the punching head on the fixing frame in the initial state is adjusted through the adjusting assembly, so that the maximum distance between the punching head and the punching table is adjusted, and the machining requirements of products with different heights are met.

Description

Technical Field

[0001] This utility model relates to the field of punch press structure, specifically a punch press with adjustable stroke. Background Technology

[0002] A punch press is a common type of machining equipment, widely used in processes such as stamping, shearing, and forming of metal sheets. Traditional punch presses have a fixed stamping range; that is, the top and bottom positions of the punch head during the stamping process are fixed, resulting in a fixed maximum distance between the punch head and the stamping table.

[0003] When stamping products of different heights, the height of the shims needs to be adjusted on the stamping table to meet different actual processing requirements. Each adjustment requires leveling the top surface of the adjusted shims to ensure stamping accuracy and product quality. This process is cumbersome and time-consuming. Utility Model Content

[0004] The purpose of this invention is to provide a punch press with adjustable stroke. This punch press uses an adjustment component to adjust the height of the punch head on the fixed frame in its initial state, thereby adjusting the maximum distance between the punch head and the punching table to meet the processing requirements of products with different heights.

[0005] The above-mentioned optimized structure of this utility model is achieved through the following technical solution: a punch press with adjustable stroke, including a fixed frame;

[0006] A stamping table, which is mounted on the fixed frame;

[0007] A stamping head, which is located above the stamping table and can be raised and lowered on the fixed frame;

[0008] A drive assembly is located on the top of the stamping table and is hinged to the stamping head;

[0009] It also includes an adjustment component, which is disposed between the drive component and the stamping head, and can adjust the height of the stamping head on the fixed frame in the initial state.

[0010] In some embodiments, the adjusting assembly includes a fixing rod that is axially connected to the driving assembly;

[0011] A sliding rod, which is fixed to the top of the stamping head;

[0012] A sliding groove is coaxially disposed at the bottom of the fixed rod and is inserted into the sliding rod.

[0013] An adjusting fastener is provided between the fixed rod and the sliding rod.

[0014] In some embodiments, the adjusting fastener includes at least two fixing holes, which pass through the fixing rod and are connected to the sliding groove;

[0015] Adjustment holes, wherein multiple adjustment holes are equally spaced along the axial direction of the sliding rod, and the adjustment holes penetrate the sliding rod;

[0016] An adjusting screw, which passes through the adjusting hole and the fixing hole;

[0017] A locking nut is screwed into the adjusting screw.

[0018] In some embodiments, the system further includes two slides, which are symmetrically arranged on the fixed frame and above the stamping table.

[0019] Two sliding plates are symmetrically arranged on both sides of the stamping head and can slide on the slide groove.

[0020] In some embodiments, the groove is a dovetail groove.

[0021] In some embodiments, the drive assembly includes a drive motor, which is disposed at one end of the top of the mounting frame;

[0022] A drive wheel is rotatably mounted on one side of the fixed frame and is connected to the drive motor for transmission.

[0023] Driven wheel, which is rotatably disposed on the other side of the fixed frame;

[0024] A rotating shaft, the two ends of which are fixedly connected to the driving wheel and the driven wheel respectively, and rotate eccentrically following the driving wheel;

[0025] A connecting block is sleeved on the rotating shaft, and the bottom of the connecting block is axially connected to the fixing rod.

[0026] In some embodiments, the drive assembly further includes a rotating wheel, which is fixedly connected to the output shaft of the drive motor;

[0027] A transmission wheel is rotatably mounted on the fixed frame and is connected to the rotating wheel via a transmission belt.

[0028] The driving gear is fixedly connected to the transmission wheel and can rotate on the fixed frame. The driving wheel is a gear and meshes with the driving gear.

[0029] In summary, this utility model has the following beneficial effects:

[0030] This type of stroke-adjustable punch press adjusts the height of the punch head on the fixed frame in its initial state by adjusting the position of the sliding rod within the sliding groove. This, in turn, adjusts the maximum distance between the punch head and the punching table to meet the processing requirements of products with varying heights. Simultaneously, it eliminates the need for horizontal calibration required for adjusting the shim height, reducing operational steps and improving adjustment efficiency. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of this utility model;

[0032] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0033] Figure 3 This utility model Figure 1 Enlarged view of point A in the middle;

[0034] Figure 4 This is a cross-sectional view of the adjustment component of this utility model.

[0035] In the diagram: 1. Fixed frame; 2. Pressing table; 3. Pressing head; 4. Drive assembly; 41. Drive motor; 42. Drive wheel; 43. Driven wheel; 44. Rotating shaft; 45. Connecting block; 46. Rotating wheel; 47. Transmission wheel; 48. Drive gear; 5. Adjustment assembly; 51. Fixed rod; 52. Sliding rod; 53. Sliding groove; 54. Adjusting fixing piece; 541. Fixed hole; 542. Adjusting hole; 543. Adjusting screw; 544. Locking nut; 6. Slide groove; 7. Slide plate. Detailed Implementation

[0036] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0037] refer to Figure 1-4An adjustable-stroke punch press includes a fixed frame 1, a punching table 2, a punching head 3, a drive assembly 4, and an adjustment assembly 5. The fixed frame 1 can be made of high-strength steel, providing a solid and stable support foundation for the entire punch press, ensuring that it can withstand huge impact forces during the punching operation without displacement or deformation. The punching table 2 can be firmly installed on the fixed frame 1, and its surface has undergone high-precision finishing treatment, resulting in extremely high flatness. It is used to place the products to be processed. The punching head 3 is located above the punching table 2 and can be connected to the fixed frame 1 through a guide structure, enabling smooth lifting and lowering movement on the fixed frame 1 to directly punch the products to be processed. The drive assembly 4 is located on the top of the punching table 2 and is hinged to the punching head 3, providing power for the lifting and lowering movement of the punching head 3. The adjustment assembly 5 is located between the drive assembly 4 and the punching head 3, adjusting the height of the punching head 3 on the fixed frame 1 in its initial state, thereby adjusting the maximum distance between the punching head 3 and the punching table 2 to meet the processing requirements of products with different heights.

[0038] In some embodiments, the adjusting component 5 includes a fixed rod 51, a sliding rod 52, a sliding groove 53, and an adjusting fixing member 54. The fixed rod 51 is axially connected to the driving component 4 and can rotate and rise under the drive of the driving component 4, and can rotate within a certain range. The sliding rod 52 is fixed on the top of the stamping head 3 and can move synchronously with the stamping head 3. The structure of the fixed rod 51 and the sliding rod 52 can be designed according to the actual situation. The sliding rod 52 and the stamping head 3 can be fixed by a bolt assembly. The sliding groove 53 is coaxially located at the bottom of the fixed rod 51 and is inserted into the sliding rod 52. The inner diameter of the sliding groove 53 matches the outer diameter of the sliding rod 52, so that the sliding rod 52 can slide freely and smoothly in the sliding groove 53, providing a precise sliding channel for the sliding rod 52. The adjusting fixing member 54 is located between the fixed rod 51 and the sliding rod 52, and can fix the position of the sliding rod 52 in the sliding groove 53, thereby achieving the height of the stamping head 3 on the fixed frame 1 in the initial state.

[0039] In some embodiments, the adjusting fastener 54 includes at least two fixing holes 541, multiple adjusting holes 542, an adjusting screw 543, and a locking nut 544. The fixing holes 541 pass through the fixing rod 51 and are connected to the sliding groove 53. The multiple adjusting holes 542 are equally spaced along the axial direction of the sliding rod 52 and pass through the sliding rod 52. The adjusting screw 543 passes through the adjusting holes 542 and the fixing holes 541. The locking nut 544 is screwed into the adjusting screw 543. After adjustment, the adjusting screw 543 can be tightly fixed by tightening the locking nut 544 to prevent it from loosening during the operation of the punch press and to ensure the stability of the initial height of the punch head 3. By adjusting the distance between the multiple adjusting holes 542, the adjustment distance of a single hole can be adjusted, which facilitates the adjustment of the height.

[0040] In actual production, when the stroke of the stamping head 3 needs to be adjusted to accommodate products of different heights, the operator first loosens the locking nut 544, disengaging the adjusting screw 543 from the current adjusting hole 542. Then, according to the specific requirements of the product processing height, the sliding rod 52 is slid up or down along the sliding groove 53 to a suitable position. At this time, the adjusting hole 542 corresponding to the new position of the sliding rod 52 is selected, and the adjusting screw 543 is inserted into the adjusting hole 542 and the corresponding fixing hole 541. Finally, the locking nut 544 is tightened forcefully to securely fix the sliding rod 52 in the new position. This achieves the adjustment of the height of the stamping head 3 on the fixed frame 1 in its initial state, thereby adjusting the maximum distance between the stamping head 3 and the stamping table 2 to meet the production requirements of products with different processing heights.

[0041] In some embodiments, the device further includes two slide grooves 6, which are symmetrically arranged on the fixed frame 1 and above the stamping table 2. These slide grooves 6 provide a clear guide path for the lifting and lowering movement of the stamping head 3. Two sliding plates 7 are symmetrically arranged on both sides of the stamping head 3 and can slide on the slide grooves 6. During the lifting and lowering process of the stamping head 3, the sliding plates 7 slide along the slide grooves 6, effectively limiting the horizontal displacement of the stamping head 3, ensuring that the stamping head 3 always maintains a vertical movement state, and improving the accuracy of stamping.

[0042] In some embodiments, the slide 6 may be a dovetail groove, which can ensure that the slide plate 7 remains highly stable during sliding and is not prone to shaking or deviation, thereby improving the stability of the lifting and lowering of the stamping head 3.

[0043] In some embodiments, the drive assembly 4 includes a drive motor 41, a drive wheel 42, a driven wheel 43, a rotating shaft 44, and a connecting block 45. The drive motor 41 is located at one end of the top of the fixed frame 1 and serves as the power source for the entire drive assembly 4. It can be a three-phase asynchronous motor. The drive wheel 42 is rotatably located on one side of the fixed frame 1 and is connected to the drive motor 41. The driven wheel 43 is rotatably located on the other side of the fixed frame 1. The two ends of the rotating shaft 44 are fixedly connected to the drive wheel 42 and the driven wheel 43, respectively, and rotate eccentrically with the drive wheel 42. This converts the rotational motion of the drive wheel 42 and the driven wheel 43 into the vertical linear motion of the stamping head 3, thereby enabling the stamping head 3 to stamp the product to be processed. The connecting block 45 is sleeved on the rotating shaft 44, and a fixed rod 51 is shaft-connected to the bottom of the connecting block 45. A rotating groove can be provided at the bottom of the connecting block 45, and a fixed shaft is horizontally provided on both sides of the rotating groove. The fixed shaft passes through the fixed rod 51 to prevent the top of the fixed rod 51 from colliding with the connecting block 45 when the fixed rod 51 rotates.

[0044] In some embodiments, the drive assembly 4 further includes a rotating wheel 46, a transmission wheel 47, and a drive gear 48. The rotating wheel 46 is fixedly connected to the output shaft of the drive motor 41. The transmission wheel 47 is rotatably mounted on the fixed frame 1 and is connected to the rotating wheel 46 via a transmission belt. The drive gear 48 is fixedly connected to the transmission wheel 47 and can rotate on the fixed frame 1. It can be fixed by a connecting shaft that passes through the fixed frame 1 laterally. The connecting shaft can rotate on the fixed frame 1. The drive wheel 42 can be a gear and meshes with the drive gear 48 to ensure that the drive wheel 42 can rotate at a predetermined speed and torque, providing stable and reliable power support for the lifting and lowering movement of the stamping head 3.

[0045] In actual production operation, when the drive motor 41 starts, its output shaft quickly drives the rotating wheel 46 to rotate at high speed. The rotating wheel 46 transmits the rotational power to the transmission wheel 47 through the transmission belt, causing the transmission wheel 47 to rotate synchronously. The rotation of the transmission wheel 47 then drives the drive gear 48, which is fixedly connected to it, to rotate. Since the drive gear 48 meshes with the drive wheel 42, the drive wheel 42 begins to rotate under the drive of the drive gear 48. The rotation of the drive wheel 42 drives the driven wheel 43 to rotate synchronously, which in turn causes the rotating shaft 44 to rotate eccentrically. The eccentric motion of the rotating shaft 44 is transmitted to the stamping head 3 through the connecting block 45. Under the guidance of the slide 6 and the slide plate 7, the stamping head 3 achieves stable and efficient lifting motion, completing the stamping operation of the product to be processed.

[0046] The specific working principle is as follows:

[0047] Based on the height of the product to be stamped, calculate the initial height of the stamping head 3 on the fixed frame 1, and adjust it using the adjusting component 5. Loosen the locking nut 544, remove the adjusting screw 543 from the current fixing hole 541 and adjusting hole 542, and then, according to the calculation result, slide the sliding rod 52 up or down in the sliding groove 53 to the appropriate position. Then, insert the adjusting screw 543 into the corresponding fixing hole 541 and adjusting hole 542, and finally tighten the locking nut 544 to complete the adjustment of the initial height of the stamping head 3.

[0048] The workpiece to be stamped is placed on the stamping table 2 and clamped by the positioning device. The drive motor 41 is started, and its output shaft drives the rotating wheel 46 to rotate. The rotating wheel 46 drives the transmission wheel 47 to rotate via a transmission belt. The transmission wheel 47 drives the drive gear 48 to rotate, and the drive gear 48 meshes with the drive wheel 42, causing the drive wheel 42 and the driven wheel 43 to rotate synchronously via the rotating shaft 44. Due to the eccentric design of the rotating shaft 44, the connecting block 45 moves eccentrically under the drive of the rotating shaft 44, thereby driving the fixed rod 51 and the stamping head 3 to move vertically up and down. During the descent of the stamping head 3, the workpiece is stamped. During the stamping process, the slide plate 7 slides within the slide groove 6, ensuring that the stamping head 3 always maintains vertical movement, improving stamping accuracy. After stamping, the stamping head 3 rises under the drive of the drive assembly 4, returning to its initial position. The operator removes the stamped workpiece, completing one stamping operation.

[0049] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A stroke-adjustable punch press, comprising a fixed frame (1); A stamping table (2) is mounted on the fixed frame (1); The stamping head (3) is located above the stamping table (2) and can be raised and lowered on the fixed frame (1); A drive assembly (4) is located on the top of the stamping table (2) and is hinged to the stamping head (3); characterized in that It also includes an adjustment component (5), which is located between the drive component (4) and the stamping head (3) and can adjust the height of the stamping head (3) on the fixed frame (1) in the initial state.

2. A stroke adjustable punch press according to claim 1, wherein: The adjustment assembly (5) includes a fixed rod (51), which is axially connected to the drive assembly (4); A sliding rod (52) is fixed to the top of the stamping head (3); The sliding groove (53) is coaxially disposed at the bottom of the fixed rod (51) and is inserted into the sliding rod (52); Adjusting fixing member (54), which is located between the fixing rod (51) and the sliding rod (52).

3. A stroke adjustable punch press according to claim 2, wherein: The adjusting fastener (54) includes at least two fixing holes (541), which pass through the fixing rod (51) and are connected to the sliding groove (53); Adjustment holes (542), a plurality of adjustment holes (542) are equally spaced along the axial direction of the sliding rod (52), and the adjustment holes (542) penetrate the sliding rod (52). An adjusting screw (543) passes through the adjusting hole (542) and the fixing hole (541). A locking nut (544) is screwed into the adjusting screw (543).

4. The stroke-adjustable punch of claim 1, wherein: It also includes two slides (6), which are symmetrically arranged on the fixed frame (1) and above the stamping table (2); Two sliding plates (7) are symmetrically arranged on both sides of the stamping head (3) and can slide on the groove (6).

5. A stroke adjustable punch press as claimed in claim 4 wherein: The groove (6) is a dovetail groove.

6. A stroke adjustable punch press as claimed in claim 2 wherein: The drive assembly (4) includes a drive motor (41), which is located at one end of the top of the fixed frame (1); The drive wheel (42) is rotatably mounted on one side of the fixed frame (1) and is connected to the drive motor (41) for transmission. Driven wheel (43), which is rotatably disposed on the other side of the fixed frame (1); A rotating shaft (44) is fixedly connected at both ends to the driving wheel (42) and the driven wheel (43) respectively, and rotates eccentrically following the driving wheel (42); A connecting block (45) is sleeved on the rotating shaft (44), and the bottom of the connecting block (45) is axially connected to the fixing rod (51).

7. A stroke-adjustable punch press according to claim 6, characterized in that: The drive assembly (4) also includes a rotating wheel (46), which is fixedly connected to the output shaft of the drive motor (41); A transmission wheel (47) is rotatably arranged on the fixed frame (1) and is in transmission connection with the rotating wheel (46) through a transmission belt; A driving gear (48) is fixedly connected with the transmission wheel (47) and is rotatable on the fixed frame (1), and the driving wheel (42) is a gear and is in engagement with the driving gear (48).

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