Combined bending machine die

Abstract

The utility model discloses a combined bending machine die, and relates to the technical field of bending machine dies. The combined bending machine die comprises a die frame, the die frame is in a cross shape, a sub-die is inserted in each quadrant, a plurality of dovetail grooves are formed in the inner wall of the quadrant of the die frame at equal intervals, a plurality of dovetail blocks are welded to the end faces, attached to the inner wall of the quadrant of the die frame, of the sub-dies, the positions of the dovetail blocks correspond to the positions of the dovetail grooves, and the dovetail blocks correspond to the dovetail grooves. And the two are in clamping connection. In order to overcome the defect that the notch shape and angle of the bending die are single, the combination mode of the sub-die in the die frame can be changed through the insertion connection of the sub-die and the die frame, when the bending die is used for plates with different specifications or bending pieces with different bending shape requirements, the whole set of die does not need to be frequently replaced like a traditional die, and the production efficiency is improved. And only the sub-molds with proper notch shapes need to be selected and combined, so that the universality of the mold is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of bending machine mold technology, specifically a combined bending machine mold. Background Art

[0002] A bending machine bends and shapes parts by pressing them together with upper and lower dies. In actual bending, different bending dies need to be selected based on the thickness of the sheet metal and the bending radius. Conventional bending dies have specific slots. When processing sheets of different specifications or bending angles, the dies need to be changed, which increases downtime and reduces productivity.

[0003] Therefore, in order to solve the problem of the single groove shape and angle of bending dies, it is necessary to propose a combined bending machine die. Utility Model Content

[0004] The purpose of this utility model is to provide a modular bending machine mold. By inserting the sub-molds into the mold frame, the combination method of the sub-molds in the mold frame can be changed. When dealing with plates of different specifications or bending parts with different bending shape requirements, it is not necessary to frequently change the entire mold as with traditional molds. Only sub-molds with suitable groove shapes need to be selected for combination, which greatly improves the versatility of the mold and solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A combined bending machine mold includes a mold frame, which is cross-shaped and has a sub-mold inserted in each quadrant. The inner wall of the quadrant of the mold frame is provided with multiple dovetail grooves at equal intervals. Multiple dovetail blocks are welded to the end face of the sub-mold that is in contact with the inner wall of the quadrant of the mold frame. The dovetail blocks are positioned corresponding to the dovetail grooves and the two are connected by a snap-fit ​​connection.

[0007] Preferably, the end face of the sub-mold that does not fit against the inner wall of the mold frame quadrant has a slot, and the shape of the slot is different for different sub-molds.

[0008] Preferably, each of the four vertices of the mold frame is welded with a plug-in plate, and the surface of the sub-mold is provided with a plug-in groove that engages with the plug-in plate.

[0009] Preferably, the front and rear ends of the plug plate are provided with bolt grooves, and the bolt grooves are provided with through holes for bolts to pass through.

[0010] Preferably, the plug plate has multiple positioning holes equidistantly spaced at the center of the bolt groove, and positioning pins for limiting the bending plate are detachably connected in the positioning holes.

[0011] Preferably, the insertion slot has a screw hole corresponding to the position of the through hole.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] This modular bending machine mold, through the engagement of dovetail blocks and dovetail grooves, as well as the engagement of insertion slots and insertion plates, allows for flexible changes in the combination of sub-molds within the mold frame. When processing sheet metal of different specifications or bending parts with different bending angles, it is only necessary to select a sub-mold with a suitable groove for insertion, effectively improving the mold's adaptability to different processing requirements and further enhancing the mold's versatility. Attached Figure Description

[0014] Figure 1 This is a perspective view of the overall structure of this utility model;

[0015] Figure 2 This is a front view of the overall structure of this utility model;

[0016] Figure 3 This is a structural diagram of the mold frame part of this utility model;

[0017] Figure 4 This is a structural diagram of the sub-mold part of this utility model.

[0018] In the diagram: 1. Mold frame; 11. Connecting plate; 111. Positioning hole; 112. Bolt slot; 113. Through hole; 12. Dovetail groove; 2. Sub-mold; 21. Groove; 22. Connecting slot; 221. Screw hole; 23. Dovetail block; 3. Positioning pin. DETAILED DESCRIPTION

[0019] Please see Figures 1-4 A combined bending machine mold includes a mold frame 1, which is cross-shaped and has a sub-mold 2 inserted in each quadrant. Multiple dovetail grooves 12 are equidistantly opened on the inner wall of the quadrant of the mold frame 1. Multiple dovetail blocks 23 are welded to the end face of the sub-mold 2 that fits against the inner wall of the quadrant of the mold frame 1. The dovetail blocks 23 are positioned corresponding to the dovetail grooves 12 and the two form a snap-fit ​​connection.

[0020] It should be noted that the mold frame 1 serves as the basic framework of the entire combined mold, providing an installation position for the sub-mold 2. By dividing the working area of ​​the mold into four quadrants, each quadrant can be connected to the sub-mold 2, allowing the mold to be flexibly combined according to different bending requirements, which is conducive to realizing the multi-functionality of the mold.

[0021] The design of sub-mold 2 makes the mold replaceable and combinable. When faced with different specifications of sheet metal, different bending angles or shape requirements, the needs can be met by replacing or recombining sub-mold 2, without having to replace the entire mold. This greatly improves the versatility and flexibility of the mold and reduces production costs.

[0022] The dovetail block 23 and dovetail groove 12 have a good guiding effect. When installing the sub-mold 2, the dovetail groove 12 can guide the dovetail block 23 to be accurately inserted into the corresponding position, ensuring that the relative position of the sub-mold 2 and the mold frame 1 is accurate and providing good limiting ability. Moreover, the dovetail block 23 and dovetail groove 12 have high connection strength. During the bending process, the mold will be subjected to a large force, and the connection between the dovetail block 23 and dovetail groove 12 can withstand these forces, ensuring that the sub-mold 2 will not fall off the mold frame 1.

[0023] Please see Figure 2 The end face of the sub-mold 2 that does not fit against the inner wall of the mold frame 1 is provided with a slot 21, and the slot 21 provided by different sub-molds 2 are different in shape.

[0024] It should be noted that by setting different shaped slots 21 on different sub-molds 2, the combined bending machine mold can adapt to the bending needs of various products, greatly improving the versatility of the mold.

[0025] Please see Figures 2-4 The mold frame 1 has four vertices welded with plug plates 11. The surface of the sub-mold 2 has plug grooves 22 that engage with the plug plates 11. The front and rear ends of the plug plates 11 have bolt grooves 112. The bolt grooves 112 have through holes 113 for bolts to pass through. The plug grooves 22 have screw holes 221 corresponding to the positions of the through holes 113.

[0026] It should be noted that the function of the bolt groove 112 is to provide installation space for the bolt, so that the bolt can be installed without protruding from the surface of the plug plate 11, thus avoiding interference between the bolt and other components during mold assembly or use.

[0027] By engaging the dovetail groove 12 with the dovetail block 23, engaging the plug plate 11 with the plug groove 22, and threading the bolt through the through hole 113 and the screw hole 221, this multi-fixing method greatly improves the stability of the connection between the sub-mold 2 and the mold frame 1, enabling the sub-mold 2 to withstand greater forces during bending without loosening or displacement.

[0028] Please see Figure 3 The plug plate 11 is provided with multiple positioning holes 111 at equal intervals in the middle of the bolt groove 112. The positioning holes 111 are detachably connected with positioning pins 3 for limiting the bending plate.

[0029] It should be noted that the cooperation between the positioning hole 111 and the positioning pin 3 can precisely control the position of the bending plate. During the bending process, it effectively limits the displacement of the bending plate and avoids wobbling and offset caused by unstable position of the bending plate during the bending process, which helps to reduce the error in the bending process.

[0030] Working principle: When using this combined bending machine mold, first select four suitable sub-molds 2 with slots 21, and align their insertion slots 22 with the insertion plate 11 of the mold frame 1. At the same time, align their dovetail blocks 23 with the dovetail slots 12 of the mold frame 1. Then insert the sub-molds 2 along the direction of the insertion plate 11 until the sub-molds 2 are completely inserted into the mold frame 1. Then pass the bolts through the through holes 113 and screw them into the corresponding screw holes 221. The bolts can be tightened with a wrench to further fix the sub-molds 2 through the connection of the bolts. Finally, according to the size, shape and bending requirements of the bending plate, select the appropriate positioning holes 111 on the insertion plate 11, and insert the positioning pins 3 into the selected positioning holes 111. The positioning pins 3 are used to limit the bending plate to improve the bending accuracy.

Claims

1. A combined bending machine mold, comprising a mold frame (1), characterized in that: The mold frame (1) is cross-shaped, and a sub-mold (2) is inserted in each quadrant. Multiple dovetail grooves (12) are equally spaced on the inner wall of the quadrant of the mold frame (1). Multiple dovetail blocks (23) are welded to the end face of the sub-mold (2) that is in contact with the inner wall of the quadrant of the mold frame (1). The dovetail blocks (23) are positioned corresponding to the dovetail grooves (12), and the two form a snap-fit ​​connection.

2. The combined bending machine mold according to claim 1, characterized in that: The end face of the sub-mold (2) that is not in contact with the inner wall of the mold frame (1) has a slot (21), and the slots (21) of different sub-molds (2) have different shapes.

3. The combined bending machine mold according to claim 1, characterized in that: The mold frame (1) has four vertices welded with plug plates (11), and the surface of the sub-mold (2) has plug grooves (22) that engage with the plug plates (11).

4. The combined bending machine mold according to claim 3, characterized in that: The front and rear ends of the plug plate (11) are provided with bolt grooves (112), and the bolt grooves (112) are provided with through holes (113) for bolts to pass through.

5. The combined bending machine mold according to claim 4, characterized in that: The plug plate (11) is provided with multiple positioning holes (111) at equal intervals in the middle of the bolt groove (112). The positioning holes (111) are detachably connected with positioning pins (3) for limiting the bending plate.

6. The combined bending machine mold according to claim 3, characterized in that: The insertion slot (22) is provided with a screw hole (221) corresponding to the position of the through hole (113).

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