Internal punching device for aluminum part

Abstract

The utility model discloses an internal punching device for aluminum parts, which belongs to the field of machining and comprises a fixing plate and a driving mechanism, a built-in groove is arranged in the fixing plate, the section of the built-in groove is T-shaped, the driving mechanism is arranged at one end of the fixing plate, a driving rod is mounted at the output end of the driving mechanism, and the driving rod is connected with the fixing plate. The driving rod is arranged on the rear side of the interior of the built-in groove, inclined grooves are evenly formed in the front side of the driving rod, a sliding rod is installed on the front side of the interior of the built-in groove and is parallel to the driving rod, inclined blocks are evenly arranged on the surface of the rear side of the sliding rod, the inclined blocks correspond to the inclined grooves one to one, and a cutter block is installed in the center of the surface of the front side of the sliding rod. According to the device, the driving rod is driven to slide relatively through an external driving mechanism, then the sliding rod is driven to move forwards through mutual extrusion of the inclined groove and the inclined block, the cutter block is driven to move forwards to achieve punching, the stroke of the device is small, the size is small, and punching work can be conducted in a small space.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of machining, more specifically, to an aluminum part internal punching device. BACKGROUND

[0002] Aluminum alloy is widely used in automobiles, including engine compartment firewall heat insulation layer, front crash beam, energy absorption box, engine oil pan, wheel bearing seat, chassis central exhaust passage heat insulation plate, pedestrian leg anti-rollover beam, tail exhaust heat insulation plate, steering machine assembly shell and suspension material, etc. The application of aluminum alloy in automobile parts not only reduces the weight of the vehicle, improves fuel efficiency, but also enhances the body stiffness and corrosion resistance, and has high recyclability, which is an indispensable material in modern automobile manufacturing. Because some aluminum structures are complex, the structures of the punching devices on the market are relatively large, and it is difficult to realize punching in a small space. SUMMARY

[0003] 1. TECHNICAL PROBLEM TO BE SOLVED

[0004] In view of the problems in the prior art, the purpose of the utility model is to provide an aluminum part internal punching device which can realize punching in a small space.

[0005] 2. TECHNICAL SCHEME

[0006] To solve the above problems, the utility model adopts the following technical scheme.

[0007] An aluminum part internal punching device, comprising a fixed plate and a driving mechanism, the fixed plate is internally provided with an internal groove, the internal groove is T-shaped in cross section, the driving mechanism is arranged at one end of the fixed plate, a driving rod is installed at the output end of the driving mechanism, the driving rod is arranged at the rear side of the internal groove, inclined grooves are uniformly arranged on the front side of the driving rod, a sliding rod is installed on the front side of the internal groove, the sliding rod is parallel to the driving rod, inclined blocks are uniformly arranged on the rear surface of the sliding rod, a plurality of inclined blocks correspond to the inclined grooves one by one, a cutter block is installed on the front surface of the sliding rod, the cutter block protrudes from the front surface of the fixed plate, positioning holes are symmetrically arranged on the front surface of the fixed plate, the positioning holes are through the internal groove, fixed pins are symmetrically arranged on the front surface of the sliding rod, and the fixed pins slide in the positioning holes.

[0008] Further, a sealing plug is screwed on the front side of the positioning hole, the sealing plug is flush with the front surface of the fixed plate, a spring is placed in the positioning hole, and the spring is arranged between the sealing plug and the fixed pin.

[0009] Further, the rear surface of the fixed plate is provided with a mounting groove, a double-thread rod is rotatably mounted in the mounting groove, one end of the double-thread rod penetrates through the side surface of the fixed plate, and a butt joint is arranged on the end of the double-thread rod close to the driving mechanism.

[0010] Further, the mounting groove is symmetrically provided with a moving block, the two moving blocks are respectively screwed on different threaded surfaces of the double-thread rod, and the moving block is hingedly provided with a connecting rod.

[0011] Further, one end of the two connecting rods away from the moving block is hingedly arranged on the extrusion plate, and the extrusion plate is parallel to the rear surface of the fixed plate.

[0012] Further, the upper surface of the fixed plate is uniformly provided with scale lines.

[0013] 3. Beneficial effects

[0014] Compared with the prior art, the aluminum part internal punching device has the advantages that the device drives the driving rod to relatively slide through the external driving mechanism, then drives the sliding rod to move forward through the mutual extrusion of the inclined groove and the inclined block, and drives the cutter block to move forward to realize punching, the device has small stroke and small size, and can perform punching work in a small space.

[0015] When the device works, the extrusion plate on the rear side can be adjusted to contact the inner wall of the aluminum part, so that the position of the device is fixed through mutual extrusion. BRIEF DESCRIPTION OF DRAWINGS

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

[0017] Figure 2 It is a fixed plate installation structure schematic view of the utility model;

[0018] Figure 3 It is a fixed plate cross section structure schematic view of the utility model;

[0019] Figure 4 It is the A area enlarged structure schematic view of the utility model; Figure 3

[0020] Explanation of reference numerals in the drawing: 1, fixed plate; 11, built-in groove; 12, positioning hole; 13, mounting groove; 2, driving mechanism; 21, driving rod; 22, inclined groove; 3, sliding rod; 31, inclined block; 32, fixing bolt; 4, spring; 5, sealing plug; 6, cutter block; 7, double-thread rod; 71, butt joint; 8, moving block; 9, connecting rod; 10, extrusion plate. DETAILED DESCRIPTION

[0021] ​With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application, and all other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative labor fall within the scope of the present application.

[0022] Embodiment:

[0023] Please refer to Figures 1-4 As shown in FIG. 1, an aluminum part internal punching device comprises a fixed plate 1 and a driving mechanism 2, the fixed plate 1 is internally provided with an internal groove 11, the internal groove 11 is in T-shaped cross section, the internal groove 11 can limit the driving rod 21 and the sliding rod 3 and can be observed through the top alignment, the driving mechanism 2 is arranged at one end of the fixed plate 1, the driving mechanism 2 is provided with the driving rod 21 at the output end, the driving mechanism 2 can control the driving rod 21 to move axially, the driving rod 21 is arranged at the rear side in the internal groove 11, the front side of the driving rod 21 is uniformly provided with an inclined groove 22, the sliding rod 3 is arranged at the front side in the internal groove 11, the sliding rod 3 is parallel to the driving rod 21, the rear surface of the sliding rod 3 is uniformly provided with an inclined block 31, a plurality of inclined blocks 31 correspond to the inclined grooves 22 one by one, when the driving rod 21 slides, the sliding rod 3 can be moved forward through the mutual extrusion of the inclined blocks 31 and the inclined grooves 22 to drive the cutter block 6 to move forward, so as to realize punching, the cutter block 6 is arranged at the center of the front surface of the sliding rod 3, the cutter block 6 exceeds the front surface of the fixed plate 1, the front surface of the fixed plate 1 is symmetrically provided with a positioning hole 12, the positioning hole 12 penetrates through the internal groove 11, the fixed peg 32 is symmetrically arranged at both ends of the front surface of the sliding rod 3, the fixed peg 32 slides in the positioning hole 12, the cooperation of the fixed peg 32 and the positioning hole 12 can ensure that the sliding rod 3 can only slide along the axis of the fixed peg 32 to drive the cutter block 6 to stretch and retract.

[0024] Please refer to Figure 3 and Figure 4 As shown in FIG. 1, the front side in the positioning hole 12 is screwed with a sealing plug 5, the sealing plug 5 is flush with the front surface of the fixed plate 1, the positioning hole 12 is placed with a spring 4, the spring 4 is arranged between the sealing plug 5 and the fixed peg 32, the sealing plug 5 is fixed by screwing, the spring 4 extrudes the fixed peg 32 to automatically reset after single punching, and the sealing plug 5 can be screwed inward to extrude the spring 4.

[0025] Please refer to Figure 2 and Figure 3As shown, a mounting groove 13 is provided on the rear surface of the fixing plate 1. A double threaded rod 7 is rotatably installed inside the mounting groove 13. One end of the double threaded rod 7 passes through the side surface of the fixing plate 1. A connector 71 is provided at the end of the double threaded rod 7 near the drive mechanism 2. The connector 71 is located on the outside of the fixing plate 1 so that the double threaded rod 7 can be rotated by an external wrench and the connector 71.

[0026] The mounting groove 13 has two movable blocks 8 symmetrically slidably installed inside. The two movable blocks 8 are respectively screwed onto different threaded surfaces of the double threaded rod 7. The surfaces of the movable blocks 8 are hinged with connecting rods 9. The ends of the two connecting rods 9 opposite to the movable blocks 8 are hinged to the extrusion plate 10. The extrusion plate 10 is parallel to the rear surface of the fixed plate 1. The rotation of the double threaded rod 7 can drive the two movable blocks 8 to move closer or further away from each other, so as to adjust the distance between the extrusion plate 10 and the fixed plate 1 through the connecting rods 9.

[0027] Please refer to Figure 1 As shown, the upper surface of the fixing plate 1 is uniformly engraved with scale lines, which makes it easy for the operator to control the distance the device enters the aluminum part.

[0028] Working principle: During use, the double-threaded rod 7 first brings the extrusion plate 10 close to the rear surface of the fixed plate 1 to reduce the cross-sectional area of ​​the device, facilitating the entry of the fixed plate 1 into the aluminum part. The depth is controlled by the scale lines. Simultaneously, due to the presence of the spring 4, the fixing bolt 32 has a backward force, causing the sliding rod 3 to approach the drive rod 21. The inclined surface of the inclined block 31 contacts the inclined groove 22. At this time, the blade 6 retracts into the fixed plate 1. After position adjustment, the double-threaded rod 7 is rotated by the cooperation of the external wrench and the coupling 71. Then, through the two... The mutual movement of the movable blocks 8 controls the extension of the extrusion plate 10, so as to ensure the fixed position of the fixed plate 1 by extrusion. Activating the drive mechanism 2 can drive the drive rod 21 to move inward, and the extrusion of the inclined groove 22 and the inclined block 31 can drive the slide rod 3 to move forward, so that the fixing bolt 32 enters the positioning hole 12 to compress and store the spring 4. The forward movement of the slide rod 3 can drive the blade block 6 to move forward to punch. After a single punching contact, due to the stored force of the spring 4, the slide rod 3 can rebound, and then the blade block 6 can retract into the fixed plate 1 to facilitate the removal of the device.

[0029] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. An apparatus for internal piercing of aluminium parts, comprising a fixed plate (1) and a drive mechanism (2), characterised in that: The fixed plate (1) is internally provided with an internal groove (11), the internal groove (11) is T-shaped in cross section, the driving mechanism (2) is arranged at one end of the fixed plate (1), a driving rod (21) is mounted on the output end of the driving mechanism (2), the driving rod (21) is arranged at the rear side of the internal groove (11), slant grooves (22) are uniformly arranged on the front side of the driving rod (21), a sliding rod (3) is mounted on the front side of the internal groove (11), the sliding rod (3) is parallel to the driving rod (21), inclined blocks (31) are uniformly arranged on the rear surface of the sliding rod (3), a plurality of inclined blocks (31) correspond to the slant grooves (22) one by one, a cutter block (6) is mounted on the front surface of the sliding rod (3), the cutter block (6) exceeds the front surface of the fixed plate (1), positioning holes (12) are symmetrically arranged on the front surface of the fixed plate (1), the positioning holes (12) are through the internal groove (11), and fixed pins (32) are symmetrically arranged on the front surface of the sliding rod (3), the fixed pins (32) slide in the positioning holes (12).

2. An apparatus for internal piercing of aluminum parts as defined in claim 1, wherein: The front side of the positioning hole (12) is screwed with a sealing plug (5), the sealing plug (5) is flush with the front surface of the fixed plate (1), a spring (4) is arranged in the positioning hole (12), and the spring (4) is arranged between the sealing plug (5) and the fixed pin (32).

3. An apparatus for punching a hole in an aluminum part according to claim 1, wherein: The rear surface of the fixed plate (1) is provided with a mounting groove (13), a double-thread rod (7) is rotatably mounted in the mounting groove (13), one end of the double-thread rod (7) penetrates the side surface of the fixed plate (1), and a butt joint (71) is arranged on the end of the double-thread rod (7) close to the driving mechanism (2), and the butt joint (71) is arranged outside the fixed plate (1).

4. An apparatus for internally piercing an aluminum part as defined in claim 3 wherein: The mounting groove (13) is symmetrically provided with a moving block (8), the two moving blocks (8) are screwed on different threaded surfaces of the double-thread rod (7), and the moving block (8) is hinged with a connecting rod (9).

5. An apparatus for internally piercing an aluminum part as defined in claim 4 wherein: The ends of the two connecting rods (9) away from the moving block (8) are hinged to an extrusion plate (10), and the extrusion plate (10) is parallel to the rear surface of the fixed plate (1).

6. An apparatus for internal piercing of aluminum parts as defined in claim 1 wherein: Scale lines are uniformly drawn on the upper surface of the fixed plate (1).

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