Adjustable punching mechanism for profile steel

Abstract

The utility model relates to the technical field of punching equipment, and provides an adjustable punching mechanism for profile steel, which comprises a rack, an oil cylinder, a punch and a female die, the oil cylinder is mounted on a top plate of the rack and used for driving the punch to move towards the female die, and the adjustable punching mechanism is characterized by further comprising a mounting seat and a punch adjusting structure; the mounting seat is connected with a piston rod of the oil cylinder, a mounting groove is formed in the mounting seat, and the punch is mounted on the mounting seat and can translate along the mounting groove; the punch adjusting structure comprises a linear driving unit, a sliding table and a push rod, the linear driving unit is mounted on the base of the rack and used for driving the sliding table to move horizontally in the direction parallel to the mounting groove, the push rod is mounted on the sliding table and used for driving the punch and the sliding table to move horizontally synchronously, and the female die is fixed to the sliding table and right faces the punch. The kidney-shaped punching mechanism overcomes the defects in the prior art, is reasonable in design and convenient to use, and solves the technical problems that the kidney-shaped punching distance of an existing punching mechanism is changed, and the mechanism is tedious to adjust.

Description

Technical Field

[0001] The utility model relates to the technical field of punching equipment, and particularly relates to an adjustable punching mechanism for profiled steel. Background Art

[0002] For a profiled steel product, a pair of kidney-shaped perforations need to be processed and formed on the surface of its plate. The prior art generally realizes this through stamping by a punching mechanism. The punch of the punching mechanism is generally installed on the upper template through cooperation of a punch clamping plate, a punch backing plate and bolts. Its die is generally installed on the lower template. When the distance between a pair of kidney-shaped perforations changes, not only the punch and the die need to be disassembled and reinstalled, but also corresponding installation holes need to be reprocessed on the upper and lower templates to adjust the installation positions of the punch and the die, and this operation is rather cumbersome.

[0003] Therefore, we propose an adjustable punching mechanism for profiled steel. Content of the Utility Model

[0004] (1) Technical Problem to be Solved

[0005] Aiming at the deficiencies of the prior art, the utility model provides an adjustable punching mechanism for profiled steel, which overcomes the deficiencies of the prior art, is reasonably designed, is convenient to use, and solves the technical problem that the existing punching mechanism has cumbersome adjustment when the distance between kidney-shaped perforations changes.

[0006] (2) Technical Solution

[0007] To achieve the above purposes, the utility model is realized through the following technical solutions:

[0008] An adjustable punching mechanism for profiled steel, the mechanism is respectively provided with a punching unit corresponding to each perforation to be punched. The punching unit includes a frame, an oil cylinder, a punch and a die. The oil cylinder is installed on the top plate of the frame and is used to drive the punch to move towards the die. The characteristics are that: the punching unit further includes a mounting seat and a punch adjusting structure;

[0009] The mounting seat is connected to the piston rod of the oil cylinder. An installation groove is formed on the mounting seat. The punch is installed on the mounting seat and can translate along the installation groove;

[0010] The punch adjusting structure includes a linear driving unit, a sliding table and a push rod. The linear driving unit is installed on the base of the frame and is used to drive the sliding table to translate along the direction parallel to the installation groove. The push rod is installed on the sliding table and is used to drive the punch to translate synchronously with the sliding table. The die is fixed on the sliding table and is arranged opposite to the punch.

[0011] Further, the mounting base includes a mounting plate and a pair of L-shaped first clamping plate assemblies. The pair of first clamping plate assemblies are symmetrically mounted on both sides of the mounting plate to form a mounting groove. The upper end of the punch is mounted on a clamping block, and the clamping block is mounted in the mounting groove.

[0012] Furthermore, the vertical part and the horizontal part of the first clamping plate assembly are of a detachable structure and are fixedly connected by a locking bolt.

[0013] Further, the linear drive unit includes a lead screw-nut pair, a hand wheel, and a pair of guide members. The slide table is slidably and guidingly mounted on the base of the frame through the pair of guide members. The nut of the lead screw-nut pair is mounted on the slide table, and its lead screw is rotatably supported on the base. The hand wheel is mounted at the end of the lead screw, and the push rod is mounted on the slide table.

[0014] Furthermore, the guide member is an inverted L-shaped second clamping plate assembly. Limiting portions are formed by outward protrusions on both sides of the slide table. The pair of second clamping plate assemblies are parallel and spaced apart and mounted on the base of the frame. The slide table is slidably and guidingly mounted between the pair of second clamping plate assemblies, and its limiting portions are in limiting cooperation with the horizontal parts of the second clamping plate assemblies.

[0015] Preferably, the vertical part and the horizontal part of the second clamping plate assembly are of a detachable structure and are fixedly connected by a locking bolt.

[0016] Further, a limiting hole is formed at the end of the push rod, and the punch extends into the limiting hole and can penetrate downward through the limiting hole.

[0017] (III) Beneficial effects

[0018] The utility model provides an adjustable punching mechanism for profiled steel, which has the following beneficial effects: when it is necessary to adjust the positions of a pair of punches, only need to loosen the locking bolt of the horizontal part of the first clamping plate assembly, then rotate the hand wheel, and the punches and the die can be synchronously driven to translate to the required positions, and then lock the locking bolt. There is no need to replace the mounting base, and the adjustment process is simple and fast. Description of the drawings

[0019] Figure 1 is a schematic side view structure diagram of the utility model;

[0020] Figure 2 is Figure 1 a schematic diagram of the cooperation between the punch, the clamping block and the mounting base in

[0021] Figure 3 is a schematic front view structure diagram of the utility model;

[0022] Figure 4 is Figure 3 a schematic diagram of the cooperation between the slide table, the push rod, the punch, the clamping block and the die in

[0023] In the figure:

[0024] 1. Frame;

[0025] 1a. Top plate;

[0026] 1c. Column;

[0027] 1b. Base;

[0028] 2. Oil cylinder;

[0029] 3. Punch;

[0030] 4. Die;

[0031] 5. Mounting seat;

[0032] 5a. Mounting plate;

[0033] 5b. First clamping plate assembly;

[0034] 5b-1. Vertical part;

[0035] 5b-2. Horizontal part;

[0036] 6. Ball screw and nut pair;

[0037] 7. Handwheel;

[0038] 8. Slide table;

[0039] 9. Push rod;

[0040] 9-1. Perforation;

[0041] 10. Support end plate;

[0042] 11. Clamping block;

[0043] 12. Spacer block;

[0044] 13. Second clamping plate assembly;

[0045] 14. Long connecting rod;

[0046] 15. Short connecting rod. Detailed implementation mode

[0047] In order to make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0048] Referring to the attached Figures 1-4 , an adjustable punching mechanism for profiled steel, in which a punching unit is provided for each perforation to be punched (i.e., the waist-shaped perforations to be punched, and there are a pair of them). The punching unit includes a frame 1, an oil cylinder 2, a punch 3, a die 4, a mounting seat 5 and a punch adjustment structure;

[0049] The frame 1 includes a top plate 1a and a base 1b, and the top plate 1a and the base 1b are connected by columns 1c around;

[0050] The oil cylinder 2 is installed on the top plate 1a of the frame 1 and is used to drive the punch 3 to move towards the die 4;

[0051] The mounting seat 5 is connected to the piston rod of the oil cylinder 2. An installation groove is formed on the mounting seat 5, and the punch 3 is installed on the mounting seat 5 and can translate along the installation groove;

[0052] The punch adjustment structure includes a linear drive unit, a slide 8 and a push rod 9. The linear drive unit is installed on the base 1b of the frame 1 and is used to drive the slide 8 to translate along the direction parallel to the installation groove. The push rod 9 is installed on the slide 8 and is used to drive the punch 3 to translate synchronously with the slide 8. The die 4 is fixed on the slide 8 and is arranged opposite to the punch 3.

[0053] In this embodiment, the mounting seat 5 includes a mounting plate 5a and a pair of L-shaped first clamping plate assemblies 5b. The pair of first clamping plate assemblies 5b are symmetrically installed on both sides of the mounting plate 5a to form an installation groove. The upper end of the punch 3 is installed on the clamping block 11, and the clamping block 11 is installed in the installation groove. Among them, the vertical part 5b-1 and the horizontal part 5b-2 of the first clamping plate assembly 5b are detachable structures and are fixedly connected by a locking bolt (not shown in the figure). The horizontal part 5b-2 of the first clamping plate assembly 5b, on the one hand, supports the clamping block 11 and the punch 3 for translation adjustment, and on the other hand, cooperates with the locking bolt and the mounting plate 5a to clamp and lock the clamping block 11 to fix the punch 3.

[0054] In this embodiment, the linear drive unit includes a lead screw nut pair 6, a handwheel 7 and a pair of guide members. The slide table 8 is slidably and guidingly mounted on the base 1b of the frame 1 through a pair of guide members. The nut of the lead screw nut pair 6 is mounted on the slide table 8, and its lead screw is rotatably supported on the base 1b (in the figure, the support end plate 10 is used to rotatably support one end of the lead screw). The handwheel 7 is mounted on the end of the lead screw. The push rod 9 is supported on the slide table 8 through a spacer block 12. Among them, the guide member is an inverted L-shaped second clamping plate assembly 13. Limiting portions are formed by outward protrusion on both sides of the slide table 8. A pair of second clamping plate assemblies 13 are mounted on the base 1b of the frame 1 in parallel and at intervals. The slide table 8 is slidably and guidingly mounted between the pair of second clamping plate assemblies 13, and its limiting portions are in limiting cooperation with the horizontal portions of the second clamping plate assemblies 13. Preferably, the vertical portion and the horizontal portion of the second clamping plate assembly 13 are of a split structure and are fixedly connected by a locking bolt.

[0055] In this embodiment, a limiting hole 9-1 is formed at the end of the push rod 9. The punch 3 extends into the limiting hole and can penetrate downward through the limiting hole. The push rod 9 restricts the punch 3 through the limiting hole. Furthermore, during the translation of the slide table 8, the punch 3 and the die 4 are synchronously translated to adjust their positions.

[0056] In this embodiment, the top plate 1a and the mounting plate 5a are connected by a connecting rod assembly. Among them, there are a pair of connecting rod assemblies which are distributed front and back. The connecting rod assembly includes a long connecting rod 14 and a short connecting rod 15. The long connecting rod 14 extends left and right. Both ends of the long connecting rod 14 are respectively rotatably connected with a pair of short connecting rods 15 through bushings and pin shafts. One of the short connecting rods 15 is rotatably connected with the connecting rod seat at the bottom of the top plate 1a through a bushing and a pin shaft, and the other short connecting rod 15 is rotatably connected with the connecting rod seat at the upper part of the mounting plate 5a through a bushing and a pin shaft. The setting of the connecting rod assembly can not only improve the stability of the operation of the mounting seat, but also enable a pair of punches on the mounting seat to perform punching synchronously.

[0057] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0058] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An adjustable punching mechanism for profiled steel. A punching unit is provided for each perforation to be punched. The punching unit includes a frame, an oil cylinder, a punch and a die. The oil cylinder is installed on the top plate of the frame and is used to drive the punch to move towards the die. It is characterized in that: The punching unit further includes a mounting base and a punch adjusting structure; The mounting base is connected to the piston rod of the oil cylinder. An installation groove is formed on the mounting base. The punch is installed on the mounting base and can translate along the installation groove; The punch adjusting structure includes a linear driving unit, a slide table and a push rod. The linear driving unit is installed on the base of the frame and is used to drive the slide table to translate along the direction parallel to the installation groove. The push rod is installed on the slide table and is used to drive the punch to translate synchronously with the slide table. The female die is fixed on the slide table and is arranged opposite to the punch.

2. The adjustable punching mechanism for profiled steel according to claim 1, wherein: The mounting base includes a mounting plate and a pair of L-shaped first clamping plate assemblies. The pair of first clamping plate assemblies are symmetrically installed on both sides of the mounting plate to form an installation groove. The upper end of the punch is installed on a clamping block, and the clamping block is installed in the installation groove.

3. The adjustable punching mechanism for profiled steel according to claim 2, wherein: The vertical part and the horizontal part of the first clamping plate assembly are detachable structures and are fixedly connected by locking bolts.

4. The adjustable punching mechanism for profiled steel according to claim 1, characterized in that: The linear driving unit includes a screw-nut pair, a handwheel and a pair of guiding members. The slide table is slidably and guidingly installed on the base of the frame through the pair of guiding members. The nut of the screw-nut pair is installed on the slide table, and its screw rod is rotatably supported on the base. The handwheel is installed at the end of the screw rod, and the push rod is installed on the slide table.

5. The adjustable punching mechanism for a profiled bar according to claim 4, characterized in that: The guiding member is an inverted L-shaped second clamping plate assembly. Limiting parts are formed by outward protrusion on both sides of the slide table. The pair of second clamping plate assemblies are installed on the base of the frame in parallel and at intervals. The slide table is slidably and guidingly installed between the pair of second clamping plate assemblies, and its limiting parts are in limiting cooperation with the horizontal parts of the second clamping plate assemblies.

6. The adjustable punching mechanism for profiled steel according to claim 5, characterized in that: The vertical part and the horizontal part of the second clamping plate assembly are detachable structures and are fixedly connected by locking bolts.

7. An adjustable punching mechanism for a profiled steel according to claim 1, characterized in that: A limiting hole is formed at the end of the push rod. The punch extends into the limiting hole and can penetrate downward through the limiting hole.

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