Steel plate pressing mechanism of numerical control punching machine

Abstract

The utility model relates to a steel plate hold-down mechanism of a numerical control press, which comprises a frame, fixing parts are fixed on the left side and the right side of the frame, and adjusting components used for facilitating multi-directional adjusting and hold-down are arranged on the inner top wall and the inner bottom wall of the frame. And a pressing assembly used for improving the pressing effect on the steel plate is arranged on the front face of the adjusting assembly, the adjusting assembly comprises mounting openings formed in the inner top wall and the inner bottom wall of the frame, and adjusting air cylinders are fixed between the inner walls of the four sides of the two mounting openings. According to the steel plate pressing mechanism of the numerical control press, the adjusting assembly is arranged, and through mutual cooperation of a mounting opening, an adjusting air cylinder, a two-way screw, a driving motor, a supporting plate and the like, the adjusting air cylinder can push a connecting frame to move so as to conduct longitudinal adjustment on the pressing assembly; and the driving motor is used for driving the two-way screw rod to rotate, so that the pressing assembly can be driven to move for transverse adjustment to be suitable for punching, pressing and fixing steel plates of different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control punching machines, in particular to a steel plate pressing mechanism of a numerical control punching machine. Background Art

[0002] CNC punching machine is the abbreviation of digital control punching machine. It is an automated machine tool equipped with a program control system. The control system can logically process programs specified by control codes or other symbolic instructions, and decode them to enable the punching machine to operate and process parts. When the punching machine punches the steel plate, a steel plate clamping mechanism is required to clamp the steel plate to prevent the steel plate from warping when the punch is punching, thereby affecting the stamping accuracy.

[0003] A steel plate clamping mechanism in a CNC punching machine disclosed in Chinese Patent Publication No. (CN 215315231 U) relates to the technical field of CNC punching machines, and includes a base frame, a punch head, and a matching frame fixedly connected to the outside thereof, wherein side plates are arranged on both sides of the top of the base frame. The utility model provides sliding frames matching with the two sets of bidirectional screw rods at both ends of the outside of the two sets of screw rods, so that the two sets of sliding frames outside each set of bidirectional screw rods can make linear movements close to or away from each other, and then when the steel plates of different lengths are clamped and fixed, when the external punching machine drives the punch head and the matching frame to punch the steel plate, the matching frame, as the punch head descends, controls the four sets of lifting frames located inside the sliding frames through the center plate and the two sets of top plates. The lowering rod is pressed down, and then the clamping plate at the bottom of the lifting rod can clamp and fix the four corners of the steel plate, which greatly reduces the labor intensity of the staff and improves the displacement accuracy during adjustment. However, this patent still has problems such as a small adjustment range of the top plate. In the prior art, a motor is used to drive two screws to drive the sliding frame to adjust the lateral position of the top plate to fix the steel plate. This is not convenient for adjusting the position of the top plate in the longitudinal direction, which limits the shape of the steel plate and is not convenient for processing the edge material. At the same time, in this patent, the motor drives the belt to drive the two screws. The motor is located in the middle, which does not meet the angle requirements and is not conducive to adjustment. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a steel plate clamping mechanism for a CNC punch press, which has the advantages of a wide adjustment range, etc., and solves the problem that the adjustment range of the top plate in the prior art is small.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a steel plate pressing mechanism of a CNC punch press, comprising a frame, fixing parts are fixed on both the left and right sides of the frame, an adjustment component for facilitating multi-directional adjustment and pressing is provided on the inner top wall and the inner bottom wall of the frame, and a pressing component for improving the pressing effect on the steel plate is provided on the front of the adjustment component;

[0006] The adjustment component includes mounting openings opened on the top wall and the bottom wall of the frame, an adjusting cylinder is fixed between the four inner walls of the two mounting openings, a connecting frame is fixed to the outer sides of the output shafts of the two adjusting cylinders, a bidirectional screw is rotatably connected between the left and right inner walls of the two connecting frames through bearings, a driving motor is fixed on the right side of the two connecting frames, and the output shafts of the two driving motors penetrate and extend to the left inner wall of the connecting frame and are respectively fixedly connected to the two bidirectional screws.

[0007] Furthermore, the height of the connecting frame is equal to the height of the frame, and the shape of the connecting frame is U-shaped.

[0008] Furthermore, support plates are fixed to the upper surface and the lower surface of the frame, and the front surfaces of the two support plates are fixedly connected to the back surfaces of the two regulating cylinders respectively.

[0009] Furthermore, the clamping assembly includes two moving blocks threadedly connected to the outer surfaces of two bidirectional screws, a clamping cylinder is fixed to the front of the moving block, and the output shaft of the clamping cylinder passes through and extends to the back of the moving block and is fixed with the clamping block.

[0010] Furthermore, the width of the pressing block is smaller than the width of the moving block, and the thickness of the moving block is smaller than the height of the connecting frame.

[0011] Furthermore, an anti-skid pad is fixed to the lower surface of the pressing block, and the anti-skid pad is a rubber pad.

[0012] Furthermore, guide rails are fixed to the inner walls of the two connecting frames on opposite sides, and sliding grooves are provided on the opposite sides of the upper and lower moving blocks, and the moving blocks are slidably connected to the outer surface of the guide rails through the sliding grooves.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] 1. The steel plate clamping mechanism of the CNC punch press is provided with an adjustment component. Through the cooperation among the mounting port, the adjustment cylinder, the connecting frame, the bidirectional screw, the driving motor and the supporting plate, the adjustment cylinder can be used to push the connecting frame to move to adjust the clamping component longitudinally, and the driving motor can be used to drive the bidirectional screw to rotate to drive the clamping component to move for lateral adjustment so as to be suitable for stamping, clamping and fixing steel plates of different sizes.

[0015] 2. The steel plate clamping mechanism of the CNC punch press is equipped with a clamping assembly. Through the cooperation between the moving block, the clamping cylinder, the clamping block and the slide groove and the guide rail, the clamping cylinder can extend the output shaft to drive the clamping block to move and adjust the clamping height, so as to cooperate with the corresponding punching head to move downward to perform stamping processing on the steel plate, and the moving block can cooperate with the adjusting assembly to adjust the position of the clamping block to improve the clamping effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the adjustment component of the utility model;

[0018] Figure 3 This is a schematic diagram of the clamping assembly of the utility model;

[0019] Figure 4 This is a front view of the clamping assembly of the utility model.

[0020] In the figure: 1 frame, 2 fixing parts, 3 adjustment components, 301 installation port, 302 adjustment cylinder, 303 connecting frame, 304 bidirectional screw, 305 drive motor, 306 support plate, 4 clamping components, 401 moving block, 402 clamping cylinder, 403 clamping block, 404 guide rail, 405 slide groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 In this embodiment, a steel plate clamping mechanism of a CNC punching machine includes a frame 1, and fixing parts 2 are fixed on the left and right sides of the frame 1. The user places the steel plate to be CNC punched on the processing table of the punching machine, and then fixes the clamping mechanism to the upper end of the punching head of the CNC punching machine through the fixing part 2. The frame 1 is driven to move for clamping by a moving punching assembly. The inner top wall and the inner bottom wall of the frame 1 are provided with an adjusting assembly 3 for facilitating multi-directional adjustment and clamping. The front of the adjusting assembly 3 is provided with a clamping assembly 4 for improving the clamping effect on the steel plate.

[0023] See also Figure 2In order to perform multi-directional adjustment and pressing for steel plate stamping, the adjustment component 3 in this embodiment includes a mounting hole 301 opened on the inner top wall and the inner bottom wall of the frame 1, and an adjustment cylinder 302 is fixed between the inner walls of the four sides of the two mounting holes 301, and a connecting frame 303 is fixed on the outer side of the output shaft of the two adjustment cylinders 302. When adjusting the longitudinal size of the steel plate, the user starts the two adjustment cylinders 302, and the connecting frame 303 is driven to move by the extension and contraction of the output shaft, thereby changing the distance between the two connecting frames 303 to achieve the needle For longitudinal adjustment of the compression of the steel plate size, a bidirectional screw 304 is rotatably connected between the left and right inner walls of the two connecting frames 303 through bearings, and a driving motor 305 is fixed to the right side of the two connecting frames 303. When the compression size of the steel plate is adjusted laterally, the two driving motors 305 are started and the bidirectional screw 304 is driven to rotate through the output shaft of the driving motor 305. The output shafts of the two driving motors 305 penetrate and extend to the left inner wall of the connecting frame 303 and are fixedly connected to the two bidirectional screws 304 respectively.

[0024] In this embodiment, the height of the connecting frame 303 is equal to the height of the frame 1, and the shape of the connecting frame 303 is U-shaped. The upper surface and the lower surface of the frame 1 are fixed with support plates 306, and the front sides of the two support plates 306 are respectively fixedly connected to the back sides of the two adjusting cylinders 302. The bidirectional screw 304 is a threaded rod with threads at both ends facing opposite directions. Therefore, when the bidirectional screw 304 rotates, it will drive the two moving blocks 401 to make synchronous movements in relative or opposite directions, thereby achieving lateral compression adjustment according to the size of the steel plate.

[0025] See also Figure 3-4 In order to clamp the steel plate for use in steel plate stamping processing, the clamping assembly 4 in this embodiment includes two moving blocks 401 threadedly connected to the outer surfaces of the two bidirectional screws 304, and a clamping cylinder 402 is fixed to the front of the moving block 401. Starting the clamping cylinder 402 to extend the output shaft drives the clamping block 403 to move and can adjust the clamping height to cooperate with the downward movement of the punching head of the CNC punching machine to perform stamping processing on the steel plate. The output shaft of the clamping cylinder 402 passes through and extends to the back of the moving block 401 and is fixed with a clamping block 403. The moving block 401 can cooperate with the adjustment assembly 3 to adjust the position of the clamping block 403 to improve the clamping effect.

[0026] In this embodiment, the width of the clamping block 403 is smaller than the width of the moving block 401, the thickness of the moving block 401 is smaller than the height of the connecting frame 303, and an anti-slip pad is fixed to the lower surface of the clamping block 403, and the anti-slip pad is a rubber pad. Guide rails 404 are fixed to the inner walls of the opposite sides of the two connecting frames 303, and sliding grooves 405 are provided on the opposite sides of the upper and lower moving blocks 401, and the moving block 401 is slidably connected to the outer surface of the guide rail 404 through the sliding grooves 405. When the moving block 401 moves, it can move on the outer surface of the guide rail 404 through the sliding grooves 405 to maintain the horizontal linear motion of the moving block 401.

[0027] It should be understood that the control method of the present invention is controlled by a controller, and the control circuit of the controller can be implemented by simple programming by technicians in this field. The provision of power is also common knowledge in this field, so the present invention will no longer explain the control method and circuit connection in detail. The electrical appliances appearing in this application are all common electrical appliances in the prior art, and this application will no longer elaborate on them.

[0028] The working principle of the above embodiment is:

[0029] (1) When the steel plate is pressed for multi-directional adjustment, the user first places the steel plate to be CNC punched on the processing table of the punch press, and then fixes the clamping mechanism to the upper end of the punch head of the CNC punch press through the fixing member 2, and uses the movable punching assembly to drive the frame 1 to move for clamping. When the longitudinal size of the steel plate is adjusted, the user starts the two adjusting cylinders 302, and drives the connecting frame 303 to move through the extension and retraction of the output shaft, thereby changing the spacing between the two connecting frames 303 to achieve longitudinal adjustment according to the size of the steel plate. When the size of the steel plate is adjusted laterally, the two driving motors 305 are started, and the output shaft of the driving motor 305 drives the bidirectional screw 304 to rotate. The bidirectional screw 304 is a threaded rod with threads at both ends facing opposite directions. Therefore, when the bidirectional screw 304 rotates, it will drive the two moving blocks 401 to make synchronous movements in relative or opposite directions, thereby achieving transverse clamping adjustment according to the size of the steel plate.

[0030] (2) When the steel plate is pressed for stamping, the steel plate to be CNC stamped is first placed on the processing table of the punch press, and then the pressing position of the steel plate is adjusted according to the size of the steel plate. The pressing cylinder 402 is started to extend the output shaft to drive the pressing block 403 to move, and the pressing height can be adjusted to cooperate with the downward movement of the punch head of the CNC punch press to perform stamping on the steel plate. The moving block 401 can cooperate with the adjustment component 3 to adjust the position of the pressing block 403 to improve the pressing effect. When the moving block 401 moves, it can move on the outer surface of the guide rail 404 through the slide groove 405 to maintain the horizontal linear movement of the moving block 401.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0032] If this patent discloses or involves components or structural parts that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connected by bolts or screws), or as: a non-detachable fixed connection (for example, riveting, welding). Of course, the fixed connection can also be replaced by an integrated structure (for example, manufactured by a casting process) (except where it is obviously impossible to use an integrated forming process).

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel plate pressing mechanism for a CNC punch press, comprising a frame (1), characterized in that: The frame (1) is fixed with fixing parts (2) on both the left and right sides, the inner top wall and the inner bottom wall of the frame (1) are provided with adjustment components (3) for facilitating multi-directional adjustment and clamping, and the front side of the adjustment component (3) is provided with a clamping component (4) for improving the clamping effect on the steel plate; The adjustment component (3) comprises a mounting opening (301) provided on the inner top wall and the inner bottom wall of the frame (1); an adjustment cylinder (302) is fixed between the inner walls on four sides of the two mounting openings (301); a connecting frame (303) is fixed on the outer sides of the output shafts of the two adjustment cylinders (302); a bidirectional screw rod (304) is rotatably connected between the inner walls on the left and right sides of the two connecting frames (303) via a bearing; a driving motor (305) is fixed on the right side of the two connecting frames (303); and the output shafts of the two driving motors (305) penetrate and extend to the inner wall on the left side of the connecting frame (303) and are respectively fixedly connected to the two bidirectional screw rods (304).

2. The steel plate pressing mechanism of a CNC punch press according to claim 1, characterized in that: The height of the connecting frame (303) is equal to the height of the frame (1), and the shape of the connecting frame (303) is U-shaped.

3. The steel plate pressing mechanism of a CNC punch press according to claim 1, characterized in that: Support plates (306) are fixed to the upper surface and the lower surface of the frame (1), and the front surfaces of the two support plates (306) are fixedly connected to the back surfaces of the two regulating cylinders (302) respectively.

4. The steel plate pressing mechanism of a CNC punch press according to claim 1, characterized in that: The clamping assembly (4) comprises two moving blocks (401) threadedly connected to the outer surfaces of two bidirectional screws (304); a clamping cylinder (402) is fixed to the front of the moving block (401); an output shaft of the clamping cylinder (402) passes through and extends to the back of the moving block (401) and is fixed with a clamping block (403).

5. The steel plate pressing mechanism of a CNC punch press according to claim 4, characterized in that: The width of the pressing block (403) is smaller than the width of the moving block (401), and the thickness of the moving block (401) is smaller than the height of the connecting frame (303).

6. The steel plate pressing mechanism of a CNC punch press according to claim 4, characterized in that: An anti-skid pad is fixed on the lower surface of the pressing block (403), and the anti-skid pad is a rubber pad.

7. The steel plate pressing mechanism of a CNC punch press according to claim 4, characterized in that: A guide rail (404) is fixed to the inner wall of the two connecting frames (303) on the opposite side, and a slide groove (405) is provided on the opposite side of the upper and lower moving blocks (401), and the moving blocks (401) are slidably connected to the outer surface of the guide rail (404) through the slide groove (405).

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