Punching machine capable of conveniently and rapidly fixing workpiece

Abstract

The utility model discloses a punch press capable of conveniently and quickly fixing a workpiece, which relates to the technical field of punch presses and comprises a workbench, a frame is fixed at the top end of the workbench, a positioning component is mounted at the top end of the workbench, and an electric push rod is mounted on the inner wall of the frame above the positioning component. The telescopic end of the electric push rod is connected with a punch; the positioning assembly comprises a bottom plate making contact with the upper surface of the workbench, two L-shaped plates are fixed to the top end of the bottom plate, a positioning plate is slidably arranged on one side of each L-shaped plate, and vertical rods penetrating to the positions above the L-shaped plates are arranged at the top ends of the positioning plates. Through the arrangement of the positioning assembly, the distance between the two sets of L-shaped plates can be adjusted, so that fixing of plates of different sizes is met, the application range of the device is wider, the plates with small thickness can be directly and transversely pushed to the position below the positioning plate, fixing of the plates is more convenient, and the machining efficiency is improved. And the plate processing efficiency is improved in a disguised manner.

Description

Technical Field

[0001] The utility model relates to the technical field of punching machines, in particular to a punching machine which can fix a workpiece conveniently and quickly. Background Art

[0002] A punch press is a stamping press. In national production, the stamping process is more and more widely used because it saves materials and energy, has high efficiency, does not require high technical skills of operators, and can produce products that cannot be achieved by mechanical processing through various mold applications. Stamping production is mainly for sheet materials. Through molds, it can produce blanking, punching, forming, drawing, trimming, fine blanking, shaping, riveting and extrusion, etc., which are widely used in various fields.

[0003] An existing patent (publication number: CN 215745741 U) discloses a punch press for fixing materials. The punch press for fixing materials has the function of fixing materials of different thicknesses. Before punching the materials of different thicknesses, the materials of different thicknesses can be firmly clamped, thereby avoiding deviation of the materials during punching due to loose clamping, affecting the accuracy of the materials, and even causing product processing failure, thereby reducing losses.

[0004] However, the above technical solution still has certain defects. Since the two sets of fixed plates and the movable plate are fixed, when the punched plate is replaced, if the size of the plate to be punched is larger or smaller than the distance between the two plates, the plate cannot be fixed any more and the punch press that matches the plate needs to be replaced, which affects the processing efficiency of the plate in disguise. Therefore, a punch press that can quickly and conveniently fix the workpiece is proposed. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide a punching machine that can quickly and conveniently fix a workpiece, so as to solve the technical problems raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical solution: a punching machine for conveniently and quickly fixing a workpiece, comprising a workbench, a frame is fixed on the top of the workbench, a positioning assembly is installed on the top of the workbench, an electric push rod is installed on the inner wall of the frame above the positioning assembly, and a punch is connected to the telescopic end of the electric push rod;

[0007] The positioning assembly includes a base plate in contact with the upper surface of the workbench, two groups of L-plates are fixed on the top of the base plate, a positioning plate is slidably provided on one side of each group of L-plates, a vertical rod is provided on the top of the positioning plate and a U-frame is fixed on the other side of the L-plate, travel grooves are provided on the front and rear surfaces of the base plate, an L-arm extending into the travel groove is provided on the inner wall of the U-frame, a constraint strip is fixed on the upper inner wall of the travel groove, a positioning rod is slidably provided on the side of the L-arm close to the constraint strip, one end of the positioning rod extends into the constraint strip, a hidden groove is provided on the inner wall of the U-frame, a U-shaped rod is slidably provided in the hidden groove, and a connecting rod fixedly connected to the U-shaped rod is provided on the outer wall of the positioning rod.

[0008] As an optimal technical solution for a punching machine of the utility model for convenient and quick fixing of workpieces, a screw groove is provided on the upper surface of the workbench, a screw is rotatably arranged in the screw groove, a driven sleeve is threadedly sleeved on the outer wall of the screw, the top end of the driven sleeve is fixed to the lower surface of the base plate, and a driving motor connected to one end of the screw is installed in the workbench.

[0009] As an optimal technical solution of the punch press for conveniently and quickly fixing workpieces of the utility model, a circular channel is opened at the contact position between the L-plate and the vertical rod, and a spring is sleeved on the outer wall of the vertical rod at the position below the L-plate.

[0010] As an optimal technical solution of the punch press for conveniently and quickly fixing a workpiece of the utility model, the end of the positioning rod extends into the L arm, and a receiving hole is provided at the contact position between the L arm and the positioning rod.

[0011] As an optimal technical solution for a punching machine that is convenient and quick to fix a workpiece according to the utility model, a positioning hole is provided at the contact position between the constraint bar and the end of the positioning rod, and the number of the positioning holes is several groups. A spring bead is provided on the side of the L arm away from the positioning rod, and a groove is provided at the contact position between the inner wall of the travel groove and the spring bead, and the number of the grooves corresponds to the positioning holes.

[0012] As an optimal technical solution for a punching machine that is convenient and quick to fix a workpiece according to the utility model, a telescopic spring is sleeved on the outer wall of the U-shaped rod, and the two ends of the telescopic spring are respectively fixed to the outer wall of the U-shaped rod and the inner wall of the hidden groove. The end of the U-shaped rod extends out of the U frame and fixes the handle. A notch is provided at the contact position between the outer wall of the U frame and the handle, and the notch is connected to the hidden groove.

[0013] As an optimal technical solution for a punching machine of the utility model for convenient and quick fixing of workpieces, the front and rear ends of the positioning plate are provided with arc-shaped strips, and the top of the positioning plate is provided with two sets of auxiliary telescopic rods fixedly connected to the L-plate, and the two sets of auxiliary telescopic rods are located on both sides of the vertical rod.

[0014] In summary, the utility model mainly has the following beneficial effects:

[0015] The utility model can adjust the distance between the two groups of L-plates by setting the positioning components, so as to meet the fixation of plates of different sizes, making the application range of the device wider. For plates with smaller thickness, they can be directly pushed horizontally to the bottom of the positioning plate, making it more convenient to fix the plates, thereby improving the processing efficiency of the plates in disguise. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a front view of the utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the positioning component of the utility model;

[0019] Figure 4 It is a structural diagram of a part of the positioning assembly of the utility model;

[0020] Figure 5 This is a schematic diagram of the bottom plate structure of the utility model;

[0021] Figure 6 It is a side cutaway view of the U frame of the present utility model;

[0022] Figure 7 For the utility model Figure 6 Enlarged view of point A in the middle.

[0023] In the figure: 100, workbench; 200, positioning component;

[0024] 101, screw rod; 102, driven sleeve; 103, driving motor; 110, frame; 111, electric push rod; 112, punch;

[0025] 210, bottom plate; 211, travel groove; 212, groove; 220, L plate; 221, positioning plate; 222, vertical rod; 223, spring; 230, U frame; 231, L arm; 232, hidden groove; 233, U-shaped rod; 234, spring bead; 235, accommodating hole; 240, constraint strip; 241, positioning hole; 250, positioning rod; 251, connecting rod. DETAILED DESCRIPTION

[0026] 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. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0027] The following describes an embodiment of the utility model based on its overall structure.

[0028] A punching machine that can quickly and easily fix workpieces, such as Figures 1 to 7 As shown, it includes a workbench 100, a frame 110 is fixed on the top of the workbench 100, a positioning assembly 200 is installed on the top of the workbench 100, an electric push rod 111 is installed on the inner wall of the frame 110 above the positioning assembly 200, and a punch 112 is connected to the telescopic end of the electric push rod 111;

[0029] The positioning assembly 200 includes a bottom plate 210 in contact with the upper surface of the workbench 100, two groups of L plates 220 are fixed on the top of the bottom plate 210, a positioning plate 221 is slidably provided on one side of each group of L plates 220, a vertical rod 222 is provided on the top of the positioning plate 221 and penetrates to the top of the L plate 220, a U frame 230 is fixed on the other side of the L plate 220, a travel groove 211 is provided on the front and rear surfaces of the bottom plate 210, an L arm 231 extending into the travel groove 211 is provided on the inner wall of the U frame 230, a constraint bar 240 is fixed on the upper inner wall of the travel groove 211, a positioning rod 250 is slidably provided on one side of the L arm 231 close to the constraint bar 240, one end of the positioning rod 250 extends into the constraint bar 240, a hidden groove 232 is provided on the inner wall of the U frame 230, a U-shaped rod 233 is slidably provided in the hidden groove 232, and a connecting rod 251 fixedly connected to the U-shaped rod 233 is provided on the outer wall of the positioning rod 250;

[0030] A circular channel is provided at the contact position between the L plate 220 and the vertical rod 222, and a spring 223 is sleeved on the outer wall of the vertical rod 222 at a position below the L plate 220;

[0031] A positioning hole 241 is provided at the contact position between the restraining bar 240 and the end of the positioning rod 250, and the number of the positioning holes 241 is several groups. A spring clamping bead 234 is provided on the side of the L arm 231 away from the positioning rod 250, and a groove 212 is provided at the contact position between the inner wall of the travel groove 211 and the spring clamping bead 234, and the number of the grooves 212 corresponds to the number of the positioning holes 241;

[0032] The front and rear ends of the positioning plate 221 are provided with arc-shaped strips, and the top of the positioning plate 221 is provided with two sets of auxiliary telescopic rods fixedly connected to the L plate 220 , and the two sets of auxiliary telescopic rods are located on both sides of the vertical rod 222 .

[0033] When positioning a plate with a small thickness, the edge of the bottom end of the plate close to the rear surface is placed on the top of the bottom plate 210, and an external force is applied to the side close to the bottom plate 210 to make the plate slide on the top of the bottom plate 210. At this time, the top of the plate squeezes the arc strip to move the positioning plate 221 upward until the plate is completely located on the bottom plate 210. While the positioning plate 221 moves upward, it pushes the vertical rod 222 to move upward and compresses the spring 223. The spring 223 exerts a downward force on the positioning plate 221, thereby completing the fixing effect of the plate. In this way, the fixing effect of the plate can be conveniently achieved;

[0034] On the contrary, when the thickness of the plate is large, an upward external force needs to be applied to the vertical rod 222 to move the positioning plate 221 upward and push the plate to the upper surface of the bottom plate 210. Then, the external force applied to the vertical rod 222 is removed, and the positioning plate 221 slides downward under the action of the spring 223 until it contacts and fixes the plate.

[0035] When the size of the plate to be processed is larger or smaller than the interval between the two groups of L plates 220, a relatively close force is applied to the two groups of U-shaped rods 233, so that the two are close to the front and rear surfaces of the bottom plate 210, and at the same time, the positioning rod 250 is driven to move laterally through the connecting rod 251 until the end is separated from the positioning hole 241 opened by the constraint bar 240, and the two groups of U frames 230 and L plates 220 are pushed relatively close or away from each other to slide on the upper surface of the bottom plate 210. At this time, the inner wall of the groove 212 squeezes the spring card bead 234 to shrink and slide along the inner wall of the stroke groove 211 until the spring card bead 234 enters the other group of grooves 212 to produce a jamming effect. At this time, the positioning rod 250 is aligned with the positioning hole 241, and the external force applied to the U-shaped rod 233 can be removed, and the positioning rod 250 can enter the positioning hole 241 again to complete the locking effect of the U frame 230 and the L plate 220 after the transposition, that is, it meets the purpose of fixing plates of different sizes, making the device have a wide range of applications.

[0036] Please refer to Figure 2 A screw groove is provided on the upper surface of the workbench 100, in which a screw 101 is rotatably arranged, a driven sleeve 102 is threadedly sleeved on the outer wall of the screw 101, and the top of the driven sleeve 102 is fixed to the lower surface of the base plate 210, and a driving motor 103 connected to one end of the screw 101 is installed in the workbench 100.

[0037] The output end of the driving motor 103 drives the screw rod 101 to rotate synchronously, so that the driven sleeve 102 on the outer wall drives the positioning assembly 200 to move horizontally, so that the plate can be processed at multiple positions.

[0038] Please refer to Figure 6 and Figure 7The end of the positioning rod 250 extends into the L arm 231 , and a receiving hole 235 is provided at the contact position between the L arm 231 and the positioning rod 250 .

[0039] A constrained space is provided for the positioning rod 250 to prevent it from tilting and being unable to enter the positioning hole 241 .

[0040] Please refer to Figure 6 The outer wall of the U-shaped rod 233 is sleeved with a telescopic spring, and the two ends of the telescopic spring are respectively fixed to the outer wall of the U-shaped rod 233 and the inner wall of the hidden groove 232. The end of the U-shaped rod 233 extends out of the U frame 230 and fixes the handle. A notch is opened at the contact position between the outer wall of the U frame 230 and the handle, and the notch is connected to the hidden groove 232.

[0041] The handle is provided to facilitate the operator to control the two sets of U-shaped rods 233 to slide relatively close to each other with one hand, and at the same time compress the telescopic rod to provide power for the subsequent automatic recovery of the U-shaped rods 233.

[0042] When in use, for positioning a plate with a small thickness, the edge of the bottom end of the plate close to the rear surface is placed on the top of the bottom plate 210, and an external force is applied to the side close to the bottom plate 210 to make the plate slide on the top of the bottom plate 210. At this time, the top of the plate squeezes the arc strip to move the positioning plate 221 upward until the plate is completely located on the bottom plate 210. While the positioning plate 221 moves upward, it pushes the vertical rod 222 to move upward and compresses the spring 223. The spring 223 exerts a downward force on the positioning plate 221, thereby completing the fixing effect of the plate. In this way, the fixing effect of the plate can be conveniently achieved;

[0043] On the contrary, when the thickness of the plate is large, an upward external force needs to be applied to the vertical rod 222 to move the positioning plate 221 upward and push the plate to the upper surface of the bottom plate 210. Then, the external force applied to the vertical rod 222 is removed, and the positioning plate 221 slides downward under the action of the spring 223 until it contacts and fixes the plate.

[0044] When the size of the plate to be processed is larger or smaller than the interval between the two groups of L plates 220, a relatively close force is applied to the two groups of U-shaped rods 233, so that the two groups are close to the front and rear surfaces of the bottom plate 210, and at the same time, the positioning rod 250 is driven to move horizontally through the connecting rod 251 until the end is separated from the positioning hole 241 opened by the constraint bar 240, and the two groups of U frames 230 and L plates 220 are relatively close or away from each other to slide on the upper surface of the bottom plate 210, at this time, the inner wall of the groove 212 squeezes the spring card bead 234 to contract and move along the stroke groove 211 The inner wall slides until the spring card bead 234 enters another set of grooves 212 to produce a jamming effect. At this time, the positioning rod 250 and the positioning hole 241 are aligned, and the external force applied to the U-shaped rod 233 can be removed, and the positioning rod 250 can enter the positioning hole 241 again, completing the locking effect of the U frame 230 and the L plate 220 after the replacement, that is, meeting the purpose of fixing plates of different sizes, making the device widely applicable, and the parts not involved in the device are the same as the prior art or can be implemented by the prior art.

[0045] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A punching machine for conveniently and quickly fixing a workpiece, comprising a workbench (100), characterized in that: A frame (110) is fixed on the top of the workbench (100), a positioning assembly (200) is installed on the top of the workbench (100), an electric push rod (111) is installed on the inner wall of the frame (110) above the positioning assembly (200), and a punch (112) is connected to the telescopic end of the electric push rod (111); The positioning assembly (200) comprises a bottom plate (210) in contact with the upper surface of the workbench (100), two groups of L plates (220) are fixed on the top of the bottom plate (210), a positioning plate (221) is slidably provided on one side of each group of L plates (220), a vertical rod (222) is provided on the top of the positioning plate (221) and penetrates to the top of the L plate (220), a U frame (230) is fixed on the other side of the L plate (220), the front and rear surfaces of the bottom plate (210) are provided with travel grooves (211), and the inner wall of the U frame (230) is provided with a vertical rod (222) extending to the top of the L plate (220). An L arm (231) is provided in the travel groove (211), a restraining bar (240) is fixed on the upper inner wall of the travel groove (211), a positioning rod (250) is slidably provided on one side of the L arm (231) close to the restraining bar (240), one end of the positioning rod (250) extends into the restraining bar (240), a hidden groove (232) is provided on the inner wall of the U frame (230), a U-shaped rod (233) is slidably provided in the hidden groove (232), and a connecting rod (251) fixedly connected to the U-shaped rod (233) is provided on the outer wall of the positioning rod (250).

2. A punching machine for convenient and rapid fixing of workpieces according to claim 1, characterized in that: A screw rod groove is provided on the upper surface of the workbench (100), a screw rod (101) is rotatably arranged in the screw rod groove, a driven sleeve (102) is threadedly sleeved on the outer wall of the screw rod (101), the top end of the driven sleeve (102) is fixed to the lower surface of the base plate (210), and a driving motor (103) connected to one end of the screw rod (101) is installed in the workbench (100).

3. A punching machine for convenient and rapid fixing of workpieces according to claim 1, characterized in that: A circular channel is provided at the contact position between the L-plate (220) and the vertical rod (222), and a spring (223) is sleeved on the outer wall of the vertical rod (222) at a position below the L-plate (220).

4. A punching machine for convenient and rapid fixing of workpieces according to claim 1, characterized in that: The end of the positioning rod (250) extends into the L arm (231), and a receiving hole (235) is provided at the contact position between the L arm (231) and the positioning rod (250).

5. A punching machine for convenient and rapid fixing of workpieces according to claim 1, characterized in that: A positioning hole (241) is provided at the contact position between the restraining strip (240) and the end of the positioning rod (250), and the number of the positioning holes (241) is a plurality of groups. A spring clamping bead (234) is provided on the side of the L arm (231) away from the positioning rod (250), and a groove (212) is provided at the contact position between the inner wall of the travel groove (211) and the spring clamping bead (234), and the number of the grooves (212) corresponds to the number of the positioning holes (241).

6. A punching machine for convenient and rapid fixing of workpieces according to claim 1, characterized in that: The outer wall of the U-shaped rod (233) is sleeved with a telescopic spring, and the two ends of the telescopic spring are respectively fixed to the outer wall of the U-shaped rod (233) and the inner wall of the hidden groove (232). The end of the U-shaped rod (233) extends out of the U frame (230) and fixes the handle. A notch is formed at the position where the outer wall of the U frame (230) contacts the handle, and the notch is connected to the hidden groove (232).

7. A punching machine for convenient and rapid fixing of workpieces according to claim 1, characterized in that: The front and rear ends of the positioning plate (221) are provided with arc-shaped strips, and the top end of the positioning plate (221) is provided with two groups of auxiliary telescopic rods fixedly connected to the L plate (220), and the two groups of auxiliary telescopic rods are located on both sides of the vertical rod (222).

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