Metal material punching positioning clamp

Abstract

The utility model discloses a metal material punching positioning clamp, which relates to the technical field of metal material processing, and comprises a punching machine and a support frame, a positioning bracket is arranged in the support frame, a positioning pressing block is arranged above the positioning bracket, and the positioning pressing block applies pressure to a blank along with the punching action of the punching machine. A positioning clamp fixedly arranged on an existing punching machine is changed into a supporting plate structure arranged through a balance spring, a blank is symmetrically supported, positioning of the blank and the punching end can be automatically corrected according to elastic force adjustment of the balance spring, in addition, a positioning pressing block is arranged through a positioning bracket, and the positioning pressing block reciprocates along with punching action, so that punching precision is improved. The feeding space cannot be affected, abutting positioning can be formed on the blank before punching, and the situation that the precision is affected due to movement of the blank caused by point stress at the moment of punching is avoided.

Description

TECHNICAL FIELD

[0001] The utility model provides a positioning fixture relates to metal material processing technical field, specifically relates to a metal material punching positioning fixture. BACKGROUND

[0002] In the field of curtain wall construction, angle steel is usually used as the keel of curtain wall construction, vertical punching is carried out on the side of angle steel, so as to facilitate the connection and construction of curtain wall framework through punching, and the existing portable puncher usually adopts adjustable V-shaped clamp or modular positioning clamp to position angle steel and channel steel.

[0003] The traditional modular positioning clamp is an adjustable baffle structure, which cooperates with the limiting of the side wall of channel steel to realize punching positioning. The adjustment accuracy of this positioning structure is fuzzy, and a large activity space needs to be reserved for the convenience of one-side feeding, which causes stamping vibration to the punching material during the punching process, and the punching deviation is greater than or equal to 0.5mm.

[0004] Therefore, the skilled in the art proposes a metal material punching positioning fixture, which can stably position the material before punching to prevent the material from vibrating and affecting the punching accuracy when subjected to stamping action. CONTENT OF THE UTILITY MODEL

[0005] In view of the deficiencies of the prior art, the utility model provides a metal material punching positioning fixture, which is provided with a positioning bracket at the stamping end of the puncher, two supporting plates are arranged through the telescopic rod supported by the balance spring, the supporting plates can be adaptively adjusted and supported according to the blank, the positioning of channel steel of different models is adapted, the blank can be automatically positioned and punched through the balance spring, and in addition, the positioning block for pressing and positioning the blank during the punching action of the puncher is arranged, so that the jumping of the blank during the punching process is avoided to affect the punching accuracy.

[0006] To achieve the above object, the utility model realizes the following technical scheme: a metal material punching positioning fixture, comprising a puncher, the puncher is an existing portable puncher, and the model can be selected according to the needs of use.

[0007] However, the existing puncher usually reserves a large feeding space to facilitate feeding, and the punching process is only the telescopic movement of the punching end of the puncher, the blank is subjected to small force area during the punching process, and the blank is easy to jump and affect the machining accuracy due to the large activity distance, therefore, the skilled in the art proposes to improve the positioning clamp of the existing puncher, which can improve the punching accuracy without affecting the punching speed.

[0008] The punching end of the puncher is fixed with a supporting frame, the puncher can be stably installed on a plane through the supporting frame for use, and the positioning clamp is also installed through the supporting frame.

[0009] The positioning bracket is arranged on the inner side of the support frame opposite to the puncher and supports the punching blank opposite to the puncher, so that the punching end of the puncher can be retracted for punching.

[0010] A positioning pressing block is arranged above the positioning bracket and is pressed against the metal material with the punching process of the puncher, so that the feeding is not affected, the blank is pressed before punching, and displacement of the blank is avoided when the blank is unstable.

[0011] Preferably, an adjusting screw is arranged through the side wall of the support frame, and a limiting block is arranged on the inner side of the support frame and is rotationally connected to one end of the adjusting screw penetrating the side wall of the support frame.

[0012] In the punching process of different sizes of channel steels, the installation position of the limiting block is adjusted through the adjusting screw, and then the limiting block is pressed against the side wall of the positioning bracket, so that the positioning bracket is adjusted and used for the processed material.

[0013] Preferably, the positioning bracket comprises a supporting plate, and two supporting plates are arranged on the inner side of the support frame and support the blank, so that the stability of positioning is ensured and a gap for punching is reserved.

[0014] The positioning pressing block is installed through the supporting plate, and the positioning pressing block installed through the supporting plate changes with the adjustment of the supporting plate, so that the positioning pressing block is adjusted and used for the processed material.

[0015] Two supporting plates are arranged on one side close to each other and are provided with an extension rod, and a balance spring is arranged on the side of the extension rod and is pressed against the extension rod, so that the extension rod pressed against the balance spring balances the pressure on both sides when the blank is pushed, thereby automatically adjusting the position of the blank relative to the punching end of the puncher and automatically correcting the punching positioning.

[0016] Preferably, a stand is fixedly connected to the side of the supporting plate, and the positioning pressing block is arranged on the side of the stand and slides along the stand, so that the positioning pressing block slides close to the upper surface of the blank during the punching process and applies pressure to the blank.

[0017] A reset spring is arranged between the positioning pressing block and the supporting plate, so that the positioning pressing block is reset through the reset spring when the punching end of the puncher moves up, thereby ensuring convenient feeding.

[0018] Preferably, a sleeve is fixed to the upper surface of the positioning pressing block, a sliding block is arranged on the inner side of the sleeve, and the sliding blocks pressed against each other by the reset spring are arranged above and below the positioning pressing block.

[0019] Two sides of the sliding block are provided with reset springs, when the puncher moves downward to punch, the positioning pressing block is pushed and pressed to move downward, then the reset springs are compressed under pressure, the sliding block is pushed by the elastic force of the reset springs, and the positioning pressing block is tightly pressed against the blank to realize positioning.

[0020] Preferably, the lower surface of the positioning pressing block is provided with a sliding groove, the lower surfaces of the positioning pressing blocks in the same group are symmetrically pushed and pressed by the sliding groove, and the two push and press wedge blocks are provided with springs on the sides away from each other.

[0021] When the positioning pressing block is pressed under force, the push and press wedge blocks contact the edge of the blank, the spring is compressed under the force, the push and press wedge blocks move to the two sides along the edge of the blank to extrude, and the position of the blank corresponding to the puncher is corrected.

[0022] The utility model discloses a metal material punch positioning fixture, which has the following beneficial effects:

[0023] The metal material punch positioning fixture changes the positioning fixture fixedly arranged on the existing puncher into a supporting plate structure arranged through a balance spring, symmetrically supports the blank, and can automatically correct the positioning of the blank and the punching end according to the elastic force of the balance spring. In addition, the positioning pressing block is arranged through the positioning bracket, the positioning pressing block reciprocates with the punching action, does not affect the feeding space, and can form a tightly positioned blank before punching to avoid the point stress in the punching moment from causing the blank to move and affect the precision. DRAWINGS

[0024] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0025] Figure 1 It is a whole structure schematic diagram of the utility model;

[0026] Figure 2 It is a positioning bracket structure schematic diagram of the utility model;

[0027] Figure 3 It is a positioning pressing block mounting structure schematic diagram of the utility model;

[0028] Figure 4 It is a push and press wedge block structure schematic diagram of the utility model.

[0029] In the figure: 1, a punch; 2, support frame; 3, positioning bracket; 301, supporting plate; 302, telescopic rod; 303, balance spring; 4, positioning pressing block; 5, adjusting screw; 6, limiting block; 7, stand; 8, reset spring; 9, sleeve; 10, sliding block; 11, sliding groove; 12, extrusion wedge. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model is described clearly and completely, obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0031] The utility model discloses a metal material punch positioning fixture,

[0032] According to the accompanying Figure 1 As shown in the figure, including punch 1, punch 1 is existing portable punch equipment, and the model can be selected from the equipment sold on the market according to the use needs.

[0033] But the existing punch 1 usually reserves larger feeding space to facilitate feeding, and the punch process is only the telescopic movement of the punch end of punch 1, and the blank is subjected to small force area during the punch process, and is easy to jump due to the large movement distance, thereby affecting the machining precision, therefore the technical personnel in the art propose to improve the positioning fixture of the existing punch 1, improve the punch precision while not affecting the punch speed.

[0034] The punch end of punch 1 is fixed with support frame 2, and punch 1 can be stably installed on the plane through support frame 2 for use, and the positioning fixture is also installed through support frame 2.

[0035] The positioning bracket 3 is slidably arranged on the inner side of the support frame 2 opposite the punch 1, and the positioning bracket 3 supports the punch blank opposite the punch 1, facilitating the telescopic punching of the punch end of punch 1.

[0036] The positioning pressing block 4 is arranged above the positioning bracket 3, and the positioning pressing block 4 is corrected with the punching of punch 1 and abuts against the positioning metal material, because it moves with the punching process of punch 1, it will not affect feeding, and at the same time, a certain pressure can be applied to the blank before punching, so as to avoid displacement of the blank when stressed due to unstable placement.

[0037] According to the accompanying Figure 2 As shown in the figure, the side wall of support frame 2 is provided with adjusting screw 5, the inner side of support frame 2 is slidably provided with limiting block 6, and one end of adjusting screw 5 penetrating the side wall of support frame 2 is rotatably connected with limiting block 6.

[0038] In the punching process of different size channel steel, the installation position of the limiting block 6 is adjusted by adjusting the screw rod 5, and then the limiting block 6 abuts against the side wall of the positioning bracket 3, so that the positioning bracket 3 can be adjusted and used according to the processed material.

[0039] The positioning bracket 3 comprises a support plate 301, and the two support plates 301 are slidably arranged on the inner side of the support frame 2. The two support plates 301 support the blank, which not only ensures the stability of positioning, but also reserves a gap for convenient punching process.

[0040] The positioning pressing block 4 is installed through the support plate 301. The positioning pressing block 4 installed through the support plate 301 changes with the adjustment of the support plate 301, so that the positioning pressing block 4 can be adjusted and used according to the size of the processed material.

[0041] The two support plates 301 are provided with telescopic rods 302 on the side close to each other. The side of the telescopic rod 302 is abutted against a balance spring 303. The telescopic rod 302 abutted against by the balance spring 303 balances the pressure on both sides when the blank is pushed, so as to automatically adjust the position of the blank relative to the punching end of the puncher 1, automatically correct the punching positioning, and only need to adjust the elastic force of the two balance springs 303 before use, so that the punching positioning of the blank to the puncher 1 can be realized.

[0042] According to the drawings Figure 3 As shown in the drawings, the support plate 301 is fixedly connected with a stand 7 on the side. The positioning pressing block 4 is slidably arranged on the side of the stand 7. The positioning pressing block 4 slidably arranged along the stand 7 slides close to the upper surface of the blank during the punching process, and exerts a pressure on the blank.

[0043] The positioning pressing block 4 and the support plate 301 are provided with a reset spring 8. The positioning pressing block 4 is reset by the reset spring 8 when the punching end of the puncher 1 moves upward, so as to facilitate feeding.

[0044] The upper surface of the positioning pressing block 4 is fixedly provided with a sleeve 9. The inner side of the sleeve 9 is slidably provided with a sliding block 10. The two positioning pressing blocks 4 are arranged above and below the sliding block 10 abutted against by the reset spring 8.

[0045] The two sides of the sliding block 10 are provided with reset springs 8. When the puncher 1 moves downward for punching, the positioning pressing block 4 is pushed to move downward, and then the reset spring 8 is compressed under the pressure. The sliding block 10 is pushed by the elastic force of the reset spring 8, and the positioning is realized by the elastic force of the reset spring 8 abutting against the blank.

[0046] According to the drawings Figure 4 As shown in the drawings, the lower surface of the positioning pressing block 4 is provided with a sliding groove 11. The lower surfaces of the positioning pressing blocks 4 in the same group are symmetrically slidably provided with pushing wedges 12 through the sliding groove 11. The two pushing wedges 12 are provided with springs on the sides away from each other.

[0047] When the positioning block 4 is pressed under the force, the extrusion wedge 12 contacts the edge of the blank, and as the force increases, the spring is compressed, the extrusion wedge 12 moves to both sides along the edge of the blank, helping to correct the position of the blank corresponding to the puncher 1.

[0048] The metal material punch positioning clamp changes the positioning clamp fixedly arranged in the existing puncher 1 into the structure of the supporting plate 301 arranged through the balance spring 303, symmetrically supports the blank, and can automatically correct the positioning of the blank and the punching end according to the elastic force of the balance spring 303, in addition, the positioning block 4 is arranged through the positioning bracket 3, the positioning block 4 reciprocates with the punching action, does not affect the feeding space, and can form abutting positioning of the blank before punching, so that the blank movement caused by point force in the punching moment is avoided, and the precision is affected.

[0049] The basic principle and main features of the utility model and the advantages of the utility model are shown and described. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, and various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A metal material punching positioning fixture, comprising a punching machine (1), wherein the punching machine (1) is an existing handheld punching device, characterized in that: The punching end of the punching machine (1) is fixed with a support frame (2), and a positioning bracket (3) is slidably arranged on the inner side of the support frame (2) facing the punching machine (1). The positioning bracket (3) supports the punching blank facing the punching machine (1). A positioning block (4) is provided above the positioning bracket (3). The positioning block (4) is aligned and pressed against the positioning metal material by the punching machine (1).

2. The metal material punching and positioning fixture as described in claim 1, characterized in that: An adjusting screw (5) is provided through the side wall of the support frame (2), and a limiting block (6) is slidably provided on the inner side of the support frame (2). One end of the adjusting screw (5) that passes through the side wall of the support frame (2) is rotatably connected to the limiting block (6).

3. The metal material punching and positioning fixture as described in claim 1, characterized in that: The positioning bracket (3) includes a support plate (301), two support plates (301) are slidably disposed inside the support frame (2), the positioning block (4) is installed through the support plate (301), and a telescopic rod (302) is provided on one side of the two support plates (301) close to each other, and a balance spring (303) is provided on the side of the telescopic rod (302).

4. The metal material punching and positioning fixture as described in claim 3, characterized in that: A column (7) is fixedly connected to the side of the tray (301), and the positioning block (4) is slidably disposed on the side of the column (7). A return spring (8) is provided between the positioning block (4) and the tray (301).

5. The metal material punching and positioning fixture as described in claim 4, characterized in that: A sleeve (9) is fixed on the upper surface of the positioning block (4), and a slider (10) is slidably arranged inside the sleeve (9). The two positioning blocks (4) are arranged vertically on the slider (10) pressed against by the reset spring (8).

6. The metal material punching and positioning fixture as described in claim 1, characterized in that: The lower surface of the positioning block (4) is provided with a sliding groove (11), and the lower surface of the positioning block (4) in the same group is symmetrically slidable with a pushing wedge (12) through the sliding groove (11). A spring is provided on the side of the two pushing wedges (12) that are far apart from each other.

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