Round steel corner cutting die

Abstract

The utility model discloses a round steel chamfering die which is used for chamfering round steel and comprises a lower die base, a lower die, an upper die and a lower die block. The key points of the utility model are as follows: the top surface of the lower die is downwards provided with an upper die hole, a spring is arranged in the upper die hole, the inner side wall of the upper die hole forms a matching surface matched with the shape of the cut corner, and the outer side wall of the lower die is inwards provided with a lower die hole communicated with the upper die hole corresponding to the matching surface; the lower die block is embedded in the lower die hole, a lower cutting edge face matched with the matching face in shape is formed on the inner end face of the lower die block, the lower cutting edge face is flush with the matching face and matched with the upper cutting edge face, a containing hole used for being matched with round steel is inwards formed in the outer end face of the lower die block, and the containing hole penetrates through the lower die block. The lower die block is embedded in the lower die hole, when the lower die block is abraded, the whole lower die does not need to be replaced, the lower die block can be directly replaced, namely a quick-wear part (the lower die block) is directly replaced, and therefore the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, in particular to a round steel angle cutting die. Background Art

[0002] The round steel angle cutting die is used to cut the ends of the round steel. The existing angle cutting die includes a lower die seat, a lower die fixed on the lower die seat, and an upper die located above the lower die. The top surface of the lower die is concave downward with a concave die. The upper die cooperates with the concave die and its top surface is connected with a pressing plate for connecting to the driving mechanism of the press. When the round steel is cut, it is first placed in the angle cutting die, and then the driving mechanism drives the upper die to move downward through the pressing plate to close the lower die, and the angle cutting is completed. However, the lower die is easily worn at the concave die, resulting in a short service life and increased maintenance costs. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a round steel angle cutting die which can replace wearing parts by embedding a lower die block in a lower die hole to reduce maintenance costs.

[0004] To achieve the above purpose, the embodiment of the utility model adopts the following technical solutions:

[0005] Round steel angle cutting die, used for cutting the angle of round steel, including lower die base, lower die, upper die and lower die block;

[0006] The lower die is fixed to the top surface of the lower die seat, an upper die hole is downwardly opened on the top surface of the lower die, a spring is arranged in the upper die hole and a matching surface matching the angled shape is formed on the inner side wall thereof, and a lower die hole communicating with the upper die hole is opened inwardly on the outer side wall of the lower die corresponding to the matching surface;

[0007] The upper die is matched with the upper die hole and is located above the spring. The upper die abuts against the spring and an outer side wall thereof is formed with an upper cutting edge surface matched with the matching surface.

[0008] The lower module is embedded in the lower die hole and its inner end face is formed with a lower cutting edge surface adapted to the shape of the mating surface. The lower cutting edge surface is flush with the mating surface and cooperates with the upper cutting edge surface. The outer end face of the lower module is provided with a receiving hole for cooperating with the round steel inwardly, and the receiving hole passes through the lower module.

[0009] Furthermore, a stopper is fixed to the outer side wall of the lower mold and stops at the outer side of the lower module. Looking toward the outer end face perpendicular to the lower module, the projection of the stopper intersects with the projection of the lower module and is located outside the projection of the accommodating hole.

[0010] Furthermore, the stop block is located below the accommodating hole and has two limit blocks protruding upward from its top surface, the two limit blocks are respectively located outside the opposite sides of the accommodating hole, and the two limit blocks and the stop block form a guide groove for matching the gap with the round steel, and the guide groove corresponds to the accommodating hole.

[0011] Furthermore, the upper ends of the outer side walls of the two limit blocks facing each other are respectively extended obliquely in a direction away from the accommodating hole to form a guide surface, and the two guide surfaces and the top surface of the stop block form the guide groove.

[0012] Furthermore, there are two stoppers, and when viewed toward an outer end surface perpendicular to the lower module, the projections of the two stoppers intersect with the projection of the lower module and are respectively located outside opposite sides of the projection of the accommodating hole.

[0013] Furthermore, a stopper is fixed to the outer side wall of the lower mold and is stopped on the outer side of the lower module. When viewed toward an outer end face perpendicular to the lower module, the projection of the stopper coincides with the projection of the lower module, and a guide hole is provided inwardly through the outer side wall of the stopper corresponding to the accommodating hole, and the guide hole is used to cooperate with the gap of the round steel.

[0014] Furthermore, an outer side wall of the upper die adjacent to the upper cutting edge surface is inwardly recessed with a positioning groove, a positioning block is fixed on the top surface of the lower die corresponding to the positioning groove, and the positioning block is inserted into the positioning groove to engage with the positioning groove.

[0015] Furthermore, two relative pads are fixed on the top surface of the lower die seat, the lower die is fixed on the top surfaces of the two pads, a groove is provided on the top surface of the lower die seat between the two pads, the upper die hole passes through the lower die up and down, the upper end of the spring extends into the upper die hole and abuts against the bottom surface of the upper die, and the lower end of the spring extends into the groove and abuts against the bottom surface of the groove.

[0016] Furthermore, the lower mold has a first outer side wall and a second outer side wall opposite to the first outer side wall, the lower mold hole is opened inward from the first outer side wall, the second outer side wall is corresponding to the lower mold hole and is provided with a discharge hole connected to the upper mold hole, and the outer end of the bottom wall of the discharge hole is inclined downward relative to the inner end; the top surface of the upper mold is connected to a pressure plate.

[0017] The round steel angle cutting die of the utility model is provided with a lower die block embedded in the lower die hole, and the inner end surface of the lower die block is formed with a lower cutting edge surface that matches the shape of the mating surface of the upper die hole, and the lower cutting edge surface is flush with the mating surface and matches the upper cutting edge surface. When the lower die block is worn, it is not necessary to replace the entire lower die, but directly replace the lower die block, that is, directly replace the wearing part (lower die block), thereby reducing maintenance costs. The round steel angle cutting die of the utility model has the characteristics of simple structure, easy installation and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a partial three-dimensional exploded schematic diagram of a round steel angle cutting die according to an embodiment of the utility model;

[0019] Figure 2 for Figure 1 A partial three-dimensional decomposition diagram from another perspective;

[0020] Figure 3 for Figure 2 A three-dimensional composite diagram of the mold closing state from another perspective;

[0021] Figure 4 for Figure 3 A side view of another embodiment;

[0022] Figure 5 for Figure 3 A side view of yet another embodiment;

[0023] Figure 6 for Figure 3 Side views of other embodiments. DETAILED DESCRIPTION

[0024] Below, in conjunction with the accompanying drawings and specific implementation methods, the utility model is further described:

[0025] like Figures 1 to 6 As shown, the embodiment of the utility model provides a round steel angle cutting die, which is used to cut the angle of the round steel 100 of the container lashing ring. The round steel angle cutting die includes a lower die base 1, a lower die 2, an upper die 3 and a lower die block 4.

[0026] like Figure 1 , Figure 2As shown, two opposite pads 7 are fixed to the top surface of the lower die base 1 by screws, and a groove 11 for positioning is provided on the top surface of the lower die base 1 between the two pads 7, and the cross section of the groove 11 is circular. The lower die 2 is fixed to the top surface of the lower die base 1, specifically, the lower die 2 is fixed to the top surfaces of the two pads 7 by bolts; an upper die hole 21 is opened downward on the top surface of the lower die 2, and the upper die hole 21 passes through the lower die 2 up and down, a spring 5 is arranged in the upper die hole 21 and its inner wall is formed with a matching surface 211 adapted to the shape of the cut angle 101; a lower die hole 22 connected with the upper die hole 21 is opened inwardly on the outer wall of the lower die 2 corresponding to the matching surface 211, specifically, the lower die 2 has a first outer wall 24 and a second outer wall 25 opposite to the first outer wall 24, the lower die hole 22 is opened inwardly from the first outer wall 24, and the second outer wall 25 corresponds to the lower die hole 22 and is opened inwardly with a discharge hole 26 connected with the upper die hole 21, and the outer end of the bottom wall of the discharge hole 26 is inclined downward relative to the inner end to facilitate discharge.

[0027] like Figure 1 , Figure 2 As shown, the upper die 3 cooperates with the upper die hole 21 and is located above the spring 5. The upper die 3 abuts against the spring 5 and its outer side wall is formed with an upper cutting edge surface 31 that cooperates with the matching surface 211; the outer side wall of the upper die 3 adjacent to the upper cutting edge surface 31 is inwardly concave with a positioning groove 32, and the positioning groove 32 penetrates the upper die 3 upward. The top surface of the lower die 2 corresponds to the positioning groove 32 and is fixed with a positioning block 6 by screws. The positioning block 6 is inserted into the positioning groove 32 to engage with the positioning groove 32 (as shown in FIG. Figure 3 As shown in FIG. 1 ), the upper mold 3 can be restricted from moving upward, thereby controlling the movement of the upper mold 3. A pressing plate 8 is also connected to the top surface of the upper mold 3. The pressing plate 8 is used to connect to the driving mechanism of the press. The pressing plate 8 moves up and down under the drive of the driving mechanism to drive the upper mold 3 to move. Figure 2 , Figure 4 As shown, the upper end of the spring 5 extends into the upper die hole 21 and abuts against the bottom surface of the upper die 3, and the lower end of the spring 5 extends into the groove 11 and abuts against the bottom surface of the groove 11 to achieve automatic resetting of the upper die 3.

[0028] like Figure 1 , Figure 2As shown, the lower die block 4 is embedded in the lower die hole 22 and its inner end surface is formed with a lower cutting edge surface 41 that matches the shape of the mating surface 211. The lower cutting edge surface 41 is flush with the mating surface 211 and matches with the upper cutting edge surface 31, that is, the lower cutting edge surface 41 of the lower die block 4 and the upper die hole 21 form a concave die that matches with the upper die 3; the outer end surface of the lower die block 4 is provided with a receiving hole 42 for matching with the round steel 100, and the receiving hole 42 penetrates the lower die block 4 for the round steel 100 to pass through. By embedding the lower die block 4 in the lower die hole 22, when the lower die block 4 is worn, it is not necessary to replace the entire lower die 2, but the lower die block 4 can be directly replaced, that is, the wearing part (lower die block 4) can be directly replaced, which is not only simple in structure but also easy to process and replace, thereby reducing maintenance costs.

[0029] Specifically, Figure 2 , Figure 3 As shown, the outer wall of the lower die 2 is fixed with a stopper 23 on the outer side of the lower die block 4 by screws. When viewed from the outer end face perpendicular to the lower die block 4, the projection of the stopper 23 intersects with the projection of the lower die block 4 and is located outside the projection of the receiving hole 42 to make way for the round steel 100. By setting the stopper 23, when the round steel 100 is cut at an angle, the stopper 23 can limit the outward movement of the lower die block 4. In this embodiment, when viewed from the outer end face perpendicular to the lower die block 4, the projection of the stopper 23 coincides with the projection of the lower die block 4 to stabilize the positioning of the lower die block 4, and a guide hole 230 is provided inwardly on the outer wall of the stopper 23 corresponding to the receiving hole 42, and the guide hole 230 is used to cooperate with the round steel 100 to play a guiding role. The design of this stopper 23 can accurately guide the round steel 100 into the lower die 2 while limiting the lower die block 4. Of course, in other embodiments, in order to simplify the structure, two stoppers 23 are provided. When viewed from the outer end surface perpendicular to the lower module 4, the projections of the two stoppers 23 intersect with the projection of the lower module 4 and are respectively located outside the opposite sides of the projection of the receiving hole 42 (such as Figure 6 As shown), this structure can also limit the lower module 4.

[0030] like Figure 4 As shown, in another preferred embodiment, in order to facilitate processing, installation and enhance structural strength, the stopper 23 can be arranged below the receiving hole 42. Specifically, the stopper 23 is located below the receiving hole 42 and has two stopper blocks 231 protruding upward from its top surface. The two stopper blocks 231 are respectively located outside the opposite sides of the receiving hole 42, and the two stopper blocks 231 and the stopper 23 form a guide groove 232 for gap matching with the round steel 100. The guide groove 232 corresponds to the receiving hole 42 to accurately guide the round steel 100 into the lower die 2. Figure 5As shown, in order to improve the positioning accuracy, preferably, the upper ends of the outer walls of the two limit blocks 231 relative to each other are respectively extended obliquely in a direction away from the accommodating hole 42 to form a guide surface 2311, and the two guide surfaces 2311 and the top surface of the stop block 23 form a guide groove 232, and the guide groove 232 can center the round steel 100.

[0031] The round steel angle cutting die of the utility model is provided with a lower die block embedded in the lower die hole, and the inner end surface of the lower die block is formed with a lower cutting edge surface that matches the shape of the mating surface of the upper die hole, and the lower cutting edge surface is flush with the mating surface and matches the upper cutting edge surface. When the lower die block is worn, it is not necessary to replace the entire lower die, but directly replace the lower die block, that is, directly replace the wearing part (lower die block), thereby reducing maintenance costs. The round steel angle cutting die of the utility model has the characteristics of simple structure, easy installation and low cost.

[0032] 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 aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein, and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. Round steel cutting die, used for cutting round steel, characterized by: It includes a lower die base, a lower die, an upper die and a lower die block; The lower die is fixed to the top surface of the lower die seat, an upper die hole is downwardly opened on the top surface of the lower die, a spring is arranged in the upper die hole and a matching surface matching the angled shape is formed on the inner side wall thereof, and a lower die hole communicating with the upper die hole is opened inwardly on the outer side wall of the lower die corresponding to the matching surface; The upper die is matched with the upper die hole and is located above the spring. The upper die abuts against the spring and an outer side wall thereof is formed with an upper cutting edge surface matched with the matching surface. The lower module is embedded in the lower die hole and its inner end face is formed with a lower cutting edge surface adapted to the shape of the mating surface. The lower cutting edge surface is flush with the mating surface and cooperates with the upper cutting edge surface. The outer end face of the lower module is provided with a receiving hole for cooperating with the round steel inwardly, and the receiving hole passes through the lower module.

2. The round steel angle cutting die according to claim 1, characterized in that: A stopper is fixed to the outer side wall of the lower mold and stops at the outer side of the lower module. Looking toward the outer end surface perpendicular to the lower module, the projection of the stopper intersects with the projection of the lower module and is located outside the projection of the accommodating hole.

3. The round steel angle cutting die according to claim 2, characterized in that: The stop block is located below the accommodating hole and has two limit blocks protruding upward from its top surface. The two limit blocks are respectively located outside the opposite sides of the accommodating hole, and the two limit blocks and the stop block form a guide groove for matching the gap with the round steel, and the guide groove corresponds to the accommodating hole.

4. The round steel angle cutting die according to claim 3, characterized in that: The upper ends of the outer side walls of the two limit blocks facing each other are respectively extended obliquely in a direction away from the accommodating hole to form a guide surface, and the two guide surfaces and the top surface of the stop block form the guide groove.

5. The round steel angle cutting die according to claim 2, characterized in that: There are two stoppers, and when viewed toward the outer end surface perpendicular to the lower module, the projections of the two stoppers intersect with the projection of the lower module and are respectively located outside the opposite sides of the projection of the accommodating hole.

6. The round steel angle cutting die according to claim 1, characterized in that: A stopper is fixed to the outer side wall of the lower mold and stops at the outer side of the lower module. When viewed from the outer end face perpendicular to the lower module, the projection of the stopper coincides with the projection of the lower module. A guide hole is provided inwardly through the outer side wall of the stopper corresponding to the accommodating hole, and the guide hole is used to cooperate with the gap of the round steel.

7. The round steel angle cutting die according to claim 1, characterized in that: The outer side wall of the upper die adjacent to the upper cutting edge surface is inwardly concave with a positioning groove, and a positioning block is fixed on the top surface of the lower die corresponding to the positioning groove, and the positioning block is inserted into the positioning groove to engage with the positioning groove.

8. The round steel angle cutting die according to claim 1, characterized in that: Two opposite pads are fixed on the top surface of the lower die seat, the lower die is fixed on the top surfaces of the two pads, a groove is provided on the top surface of the lower die seat between the two pads, the upper die hole passes through the lower die up and down, the upper end of the spring extends into the upper die hole and abuts against the bottom surface of the upper die, and the lower end of the spring extends into the groove and abuts against the bottom surface of the groove.

9. The round steel angle cutting die according to claim 1, characterized in that: The lower mold has a first outer side wall and a second outer side wall opposite to the first outer side wall. The lower mold hole is opened inward from the first outer side wall. The second outer side wall is corresponding to the lower mold hole and is provided with a discharge hole connected to the upper mold hole. The outer end of the bottom wall of the discharge hole is inclined downward relative to the inner end. The top surface of the upper mold is connected to a pressure plate.

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