CN219004250U - A punching die for sheet metal parts - Google Patents

Abstract

The utility model discloses a sheet metal blanking die, which relates to the technical field of sheet metal processing. The utility model comprises a frame, a lower mold fixedly arranged at the bottom of the frame and an upper mold arranged at the top of the frame, a positioning mechanism is arranged on the outside of the upper mold, a through groove penetrating through the left and right sides is arranged on the lower mold, and a The feeding port, the feeding port is connected with the through groove, and the feeding mechanism is arranged inside the through groove. The positioning mechanism includes a mounting plate, a positioning frame, a sliding rod, a slider and a return spring. The feeding mechanism includes a buffer plate, a buffer seat, A connecting rod, a movable block, a first buffer spring, a second buffer spring, a locking rod and a positioning protrusion. The utility model improves the stability of the blanking process through the positioning mechanism and the blanking mechanism, improves the processing accuracy of the sheet metal parts, prevents the sheet metal parts from falling directly after punching, and prevents the deformation of the sheet metal parts. better.

Description

A punching die for sheet metal parts

technical field

The utility model belongs to the technical field of sheet metal parts processing, in particular to a sheet metal part blanking die.

Background technique

Sheet metal is a comprehensive cold working process for sheet metal, including shearing, punching/cutting/compositing, folding, welding, riveting, splicing, forming (such as car body), etc. Its remarkable feature is that the thickness of the same part is consistent. Products processed by sheet metal technology are called sheet metal parts.

Punching is a stamping process that uses a die to separate part of the material or process part from another part of the material, process (process) part or waste. Blanking is a general term for the separation processes such as shearing, blanking, punching, punching, notching, sectioning, chiseling, trimming, tongue cutting, cutting, and repairing. Before the sheet metal parts are put into use, they need to pass The mold performs a series of blanking and subsequent processing.

The structure of the existing punching die for sheet metal parts is relatively simple. When punching through the upper die, since the clamping mechanism can only be applied through the external frame, it is easy to cause the offset and deflection of the sheet during punching, and then As a result, the stability of the blanking process is poor, resulting in low processing accuracy of the sheet metal parts, and the existing sheet metal parts fall directly after punching, and the sheet metal parts deform under the impact force , the practicability is poor, so we propose a sheet metal blanking die.

Utility model content

The purpose of the utility model is to provide a blanking die for sheet metal parts, which solves the problem that the structure of the existing punching dies for sheet metal parts is relatively simple. , it is easy to cause the offset and deflection of the sheet during punching, which leads to poor stability of the punching process, resulting in low processing precision of sheet metal parts, and the existing sheet metal parts fall directly after punching Falling, the sheet metal parts are deformed under the action of the impact force, and the practicability is poor.

In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:

The utility model relates to a blanking die for a sheet metal part, comprising a frame, a lower die fixed at the bottom of the frame and an upper die arranged at the top of the frame, a positioning mechanism is arranged on the outer side of the upper die, and a Through the through grooves on the left and right sides of the upper mold, there is a discharge port on the top of the upper mold. ;

The positioning mechanism includes a mounting plate, a positioning frame, a slide bar, a slider and a return spring. The mounting plate is arranged on the top of the upper mold, and a positioning frame is arranged on the outside of the upper mold and the mounting plate. The left and right sides of the positioning frame are There are grooves on the inner wall, and a sliding rod is fixed inside the two grooves, and sliders are movably connected to the outer surfaces of the two sliders. The opposite ends of the two sliders are respectively connected to the left and right of the mounting plate The two sides are fixedly connected, a return spring is arranged between the slider and the bottom of the groove, the return spring is sleeved on the slide bar, and the bottom end of the initial position of the positioning frame is flush with the bottom of the upper mold;

The blanking mechanism includes a buffer plate, a buffer seat, a connecting rod, a movable block, a first buffer spring, a second buffer spring, a clamp rod and a positioning protrusion, the buffer plate is arranged inside the lower mold through groove, and the buffer The top of the board is fixed with a buffer seat, one end of the connecting rod is movably connected to the opposite sides of the bottom of the buffer plate, the other ends of the two connecting rods are movably connected to a movable block, and movable grooves are opened on the opposite sides of the bottom of the frame The two movable blocks are respectively movably arranged inside the corresponding movable groove, and a first buffer spring is arranged between a side of the two movable blocks and the wall of the movable groove, and the center of the bottom of the buffer plate is connected to the bottom of the movable groove. A second buffer spring is arranged between the bottoms of the through grooves of the mold, clamping rods are fixedly connected to both sides of the positioning frame, and several positioning grooves are equidistantly arranged on the sides of the clamping rods, and corresponding clamping rods on the buffer plate The position of the rod is symmetrically provided with card slots, and several positioning protrusions are equidistantly arranged on the wall of the card slot. The positioning protrusion provided on the top is clamped with the buffer plate, and the positioning protrusion is elastic.

Preferably, the frame includes a lower top board, an upper top board, and a support rod fixedly arranged at a corner of a side adjacent to the upper top board and the lower top board, and the support rod supports the upper top board.

Preferably, the top of the frame is also provided with a driving mechanism, the driving mechanism includes a cylinder, the cylinder is fixed on the bottom of the upper top plate, the output end of the cylinder is fixedly connected to the mounting plate, and the output end of the cylinder acts on the upper mold. driving effect.

Preferably, two positioning parts are arranged symmetrically on both sides of the top of the lower mold, the positioning parts are in an inverted L-shaped structure, and the positioning parts play a role in positioning the sheet metal parts.

Preferably, both the buffer seat and the top of the buffer plate are provided with a chute, and the inclined direction of the chute is gradually inclined downward from the rear side of the top of the buffer seat to the bottom of the front side of the buffer plate, so that the processed sheet metal parts can move along the chute. slide down.

Preferably, a material guide opening is provided on the front side of the lower mold, and the material guide opening communicates with the inside of the through groove of the lower mold, so as to facilitate blanking of sheet metal parts.

Preferably, a placement slot is provided at the bottom of the frame, and a collection box is arranged inside the placement slot, the collection box is located below the material guide port, and the collection box plays a role in collecting the processed sheet metal parts.

The utility model has the following beneficial effects:

1. The utility model uses the provided positioning mechanism to move the upper mold downward through the output end of the cylinder in the driving mechanism, so that the bottom of the upper mold and the bottom of the positioning frame are offset against the top of the sheet metal part, and the sheet metal part is positioned through the positioning frame Fixed, the output end of the cylinder continues to drive the upper die to move downwards to punch the sheet metal parts. Under the action of elasticity, the positioning frame is always in contact with the sheet metal part, avoiding the offset and deflection of the sheet metal part during punching, improving the stability of the punching process and improving the processing accuracy of the sheet metal part;

2. The utility model uses the provided blanking mechanism to drive the upper mold through the output end of the cylinder in the driving mechanism to punch the sheet metal parts. When the positioning frame moves downward, the clamp rod is driven to insert into the buffer plate slot. And because the buffer plate is supported and reset by the first buffer spring and the second buffer spring, the buffer plate drives the buffer seat against the bottom of the sheet metal part, and the output end of the cylinder continues to drive the upper mold to move downward. The metal parts fall to the top of the buffer seat, and under the driving action of the output end of the cylinder, the upper mold squeezes the buffer seat and the sheet metal parts between the buffer seat and the upper mold move downward, thereby extruding the movable block through the connecting rod to Moving on both sides, under the elastic action of the first buffer spring and the second buffer spring, the extrusion force is buffered to avoid damage to the sheet metal parts, and the sheet metal parts are gradually moved down to the material guide port, and at the same time the rod is locked The positioning groove on the upper part is connected with the internal positioning protrusion of the card slot on the buffer plate. At this time, the drive cylinder moves upwards, so that the upper mold and the sheet metal part are separated. Under the action of the clamping rod and the buffer plate, the buffer plate It does not move up with the upper mold at the same time, so that a blanking space is formed between the upper mold and the buffer plate. The sheet metal parts pass through the chute set on the top of the buffer seat so that the blanking space enters the inside of the material guide port and slides down to the inside of the collection box , avoid sheet metal parts falling directly after punching, prevent sheet metal parts from deforming, and have better practicability.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

Fig. 1 is the three-dimensional view of a kind of sheet metal blanking die of the present utility model;

Fig. 2 is a top view of a blanking die for a sheet metal part of the present invention;

Fig. 3 is a sectional view at B-B in Fig. 2 of a sheet metal blanking die of the present utility model;

Fig. 4 is an enlarged view of B in Fig. 3 of a sheet metal blanking die of the utility model;

Fig. 5 is an enlarged view of C in Fig. 3 of a blanking die for a sheet metal part of the present invention;

Fig. 6 is a sectional view at D-D in Fig. 2 of a blanking die for a sheet metal part of the present invention.

In the accompanying drawings, the list of parts represented by each label is as follows:

1. Frame; 101. Lower top plate; 102. Upper top plate; 103. Support rod; 2. Lower mold; 3. Upper mold; 4. Mounting plate; 5. Positioning frame; , return spring; 9, buffer plate; 10, buffer seat; 11, connecting rod; 12, movable block; 13, first buffer spring; 14, second buffer spring; 15, clamping rod; 16, positioning protrusion; 17 , Cylinder; 18, Positioning piece.

Detailed ways

In order to make the technical means, creative features, goals and effects achieved by the utility model easy to understand, the utility model will be further elaborated below in conjunction with specific embodiments.

In the description of the present utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "another end" The orientation or positional relationship indicated by ", etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, so as to Specific orientation configurations and operations, therefore, should not be construed as limitations on the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless otherwise specified and limited, the terms "installed", "set with", "connected", etc. should be understood in a broad sense, such as "connected", which can be a fixed The connection can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

Referring to Figures 1-6, the utility model is a blanking die for sheet metal parts, including a frame 1, a lower die 2 fixedly arranged at the bottom of the frame 1, and an upper die 3 arranged at the top of the frame 1, and the outer side of the upper die 3 is provided with Positioning mechanism, the lower mold 2 is provided with through grooves running through its left and right sides, the top of the upper mold 3 is provided with a discharge port, the discharge port is connected with the through groove, and a discharge mechanism is arranged inside the through groove, and the upper mold 3 and The position of the lower mold 2 is corresponding;

The positioning mechanism includes a mounting plate 4, a positioning frame 5, a slide bar 6, a slide block 7 and a return spring 8. The mounting plate 4 is arranged on the top of the upper mold 3, and a positioning frame 5 is arranged on the outside of the upper mold 3 and the mounting plate 4. The positioning frame 5 There are grooves on the inner walls of the left and right sides, and a slide bar 6 is fixed inside the two grooves, and a slider 7 is movably connected to the outer surface of the two slide bars 6, and the opposite ends of the two sliders 7 are respectively connected to the mounting plate. 4. The left and right sides are fixedly connected. A return spring 8 is set between the slider 7 and the bottom of the groove. The return spring 8 is set on the slide bar 6. The bottom end of the initial position of the positioning frame 5 is flush with the bottom of the upper mold 3;

The blanking mechanism includes a buffer plate 9, a buffer seat 10, a connecting rod 11, a movable block 12, a first buffer spring 13, a second buffer spring 14, a clamping rod 15 and a positioning protrusion 16, and the buffer plate 9 is arranged on the lower mold 2 pass. Inside the groove, the top of the buffer plate 9 is fixed with a buffer seat 10, one end of the connecting rod 11 is movably connected to the opposite sides of the bottom of the buffer plate 9, the other ends of the two connecting rods 11 are movably connected to a movable block 12, and the opposite sides of the bottom of the frame 1 Both are provided with movable grooves, and two movable blocks 12 are movable respectively arranged inside corresponding movable grooves, and a first buffer spring 13 is arranged between the side of the two movable blocks 12 apart from the wall of the movable groove, and the bottom of the buffer plate 9 A second buffer spring 14 is arranged between the center and the groove bottom of the lower mold 2, and the opposite sides of the positioning frame 5 are fixedly connected with clamping rods 15, and several positioning grooves are equidistantly arranged on the side of the clamping rod 15, and the buffer plate 9 The upper corresponding card rod 15 positions are symmetrically provided with card slots, and several positioning protrusions 16 are equidistantly arranged on the wall of the card slot, and the positioning protrusions 16 match the positioning grooves, and the card bar 15 is connected with the card by the positioning grooves provided on its side. The positioning protrusion 16 provided on the groove wall is engaged with the buffer plate 9, and the positioning protrusion 16 is elastic.

Wherein, the frame 1 includes a lower top plate 101, an upper top plate 102, and a support rod 103 fixedly arranged on a corner of a side of the upper top plate 102 adjacent to the lower top plate 101. The support rod 103 supports the upper top plate 102.

Wherein, the top of the frame 1 is also provided with a drive mechanism, the drive mechanism includes a cylinder 17, the cylinder 17 is fixedly arranged on the bottom of the upper top plate 102, the output end of the cylinder 17 is fixedly connected to the mounting plate 4, and the output end of the cylinder 17 drives the upper mold 3 effect.

Wherein, two positioning pieces 18 are arranged symmetrically on both sides of the top of the lower mold 2, and the positioning pieces 18 have an inverted L-shaped structure, and the positioning pieces 18 play a role in positioning the sheet metal parts.

Among them, the buffer seat 10 and the top of the buffer plate 9 are provided with a chute, and the inclined direction of the chute is from the rear side of the top of the buffer seat 10 to the bottom of the front side of the buffer plate 9. slide down.

Wherein, the front side of the lower mold 2 is provided with a material guide port, and the material guide port is connected with the inside of the lower mold 2 through groove, so as to facilitate the blanking of sheet metal parts.

Wherein, a placement slot is provided at the bottom of the frame 1, and a collection box is arranged inside the placement slot, the collection box is located below the material guide port, and the collection box plays a role in collecting the processed sheet metal parts.

The working principle of the utility model is as follows: the sheet metal parts are positioned and fixed through the positioning part 18 provided on the top of the lower mold 2, and the upper mold 3 is moved downward through the output end of the cylinder 17 in the driving mechanism, so that the bottom of the upper mold 3, the positioning The bottom of the frame 5 is offset against the top of the sheet metal part, and the sheet metal part is positioned and fixed by the positioning frame 5, and the output end of the cylinder 17 continues to drive the upper mold 3 to move downward to punch the sheet metal part. When punching, the upper mold 3 The mounting plate 4 set on the top moves downwards and drives the slider 7 to move along the slide bar 6, so that the positioning frame 5 is always in contact with the sheet metal part under the elastic action of the return spring 8, so as to prevent the sheet metal part from being punched when punching. Offset and deflection occur, which improves the stability of the punching process and improves the processing accuracy of the sheet metal parts; when the output end of the cylinder 17 in the drive mechanism drives the upper mold 3 to punch the sheet metal parts, the positioning frame 5 moves toward the When moving down, the drive bar 15 is inserted into the inside of the buffer plate 9 slots, and due to the support and reset of the buffer plate 9 by the first buffer spring 13 and the second buffer spring 14, the buffer plate 9 drives the buffer seat 10 and the plate The bottom of the metal parts is offset, and the output end of the cylinder 17 continues to drive the upper mold 3 to move downward. The seat 10 and the sheet metal parts between the buffer seat 10 and the upper mold 3 move downward, thereby pressing the movable block 12 to move to both sides through the connecting rod 11, under the elastic action of the first buffer spring 13 and the second buffer spring 14 , buffer the extrusion force to avoid damage to the sheet metal parts, and make the sheet metal parts gradually move down to the material guide port, and at the same time, the positioning groove on the clamping rod 15 and the positioning protrusion 16 inside the clamping groove on the buffer plate 9 At this time, the drive cylinder 17 moves upward, thereby separating the upper mold 3 from the sheet metal part. Under the clamping action of the clamp rod 15 and the buffer plate 9, the buffer plate 9 does not move upward with the upper mold 3 at the same time. Thus, a blanking space is formed between the upper mold 3 and the buffer plate 9, and the sheet metal parts pass through the chute provided on the top of the buffer seat 10 so that the blanking space enters the inside of the material guide port and slides down to the inside of the collection box to prevent the sheet metal parts from Drop directly after punching to prevent deformation of sheet metal parts, and have better practicability.

The basic principles and main features of the present utility model and the advantages of the present utility model have been shown and described above. Those skilled in the industry should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (7)

1. A sheet metal component blanking die, its characterized in that: the automatic feeding device comprises a frame (1), a lower die (2) fixedly arranged at the bottom of the frame (1) and an upper die (3) arranged at the top of the frame (1), wherein a positioning mechanism is arranged at the outer side of the upper die (3), through grooves penetrating through the left side surface and the right side surface of the lower die (2) are formed in the lower die (2), a feed opening is formed in the top of the upper die (3), the feed opening is communicated with the through grooves, and a feed mechanism is arranged in the through grooves;

the positioning mechanism comprises a mounting plate (4), positioning frames (5), sliding rods (6), sliding blocks (7) and reset springs (8), wherein the mounting plate (4) is arranged at the top of an upper die (3), the outer sides of the upper die (3) and the mounting plate (4) are provided with the positioning frames (5), grooves are formed in the inner walls of the left side and the right side of the positioning frames (5), the sliding rods (6) are fixedly arranged in the grooves, the sliding blocks (7) are movably connected to the outer side surfaces of the two sliding rods (6), one opposite ends of the two sliding blocks (7) are fixedly connected with the left side surface and the right side surface of the mounting plate (4) respectively, the reset springs (8) are arranged between the sliding blocks (7) and the bottoms of the grooves, and the reset springs (8) are sleeved on the sliding rods (6);

the blanking mechanism comprises a buffer plate (9), a buffer seat (10), a connecting rod (11), movable blocks (12), a first buffer spring (13), a second buffer spring (14), a clamping rod (15) and a positioning protrusion (16), wherein the buffer plate (9) is arranged inside a through groove of a lower die (2), the buffer seat (10) is fixedly arranged at the top of the buffer plate (9), one end of the connecting rod (11) is movably connected to two opposite sides of the bottom of the buffer plate (9), the movable blocks (12) are movably connected to the other ends of the connecting rod (11), movable grooves are respectively formed in two opposite sides of the bottom of the frame (1), the movable blocks (12) are respectively movably arranged inside the corresponding movable grooves, the first buffer springs (13) are respectively arranged between one side surface of the movable blocks (12) and the groove wall of the movable groove, the second buffer spring (14) is fixedly connected to the two opposite sides of the bottom center of the buffer plate (9) and the bottom of the lower die (2), the clamping rod (15) is respectively arranged on the two sides of the corresponding sides of the buffer plate (9), the clamping rod (15) and the clamping grooves are symmetrically arranged on the clamping rods (16) at equal distances, the positioning protrusion (16) is matched with the positioning groove.

2. The sheet metal part blanking die of claim 1, wherein the frame (1) includes a lower top plate (101), an upper top plate (102) and a support rod (103) fixedly provided at a corner position of an adjacent side surface of the upper top plate (102) to the lower top plate (101).

3. The sheet metal part blanking die of claim 2, wherein a driving mechanism is further arranged at the top of the frame (1), the driving mechanism comprises a cylinder (17), the cylinder (17) is fixedly arranged at the bottom of the upper top plate (102), and the output end of the cylinder (17) is fixedly connected to the mounting plate (4).

4. A sheet metal part blanking die according to claim 3, characterized in that two positioning pieces (18) are symmetrically arranged on two sides of the top of the lower die (2), and the positioning pieces (18) are of an inverted-L-shaped structure.

5. The sheet metal part blanking die of claim 4, wherein the top parts of the buffer seat (10) and the buffer plate (9) are respectively provided with a chute, and the inclined direction of the chute is gradually downward inclined from the rear side of the top part of the buffer seat (10) to the bottom of the front side surface of the buffer plate (9).

6. The sheet metal part blanking die of claim 5, wherein a material guiding opening is formed in the front side surface of the lower die (2), and the material guiding opening is communicated with the inside of a through groove of the lower die (2).

7. The sheet metal part blanking die of claim 6, wherein a placing groove is formed in the bottom of the frame (1), and a collecting box is arranged in the placing groove and located below the material guiding opening.

Images