Forging die holder with guide structure

Abstract

The forging die holder comprises a guide pillar hole, a limiting ring plate is fixedly connected to the upper edge of the inner wall of the guide pillar hole, an annular limiting groove is formed between the inner wall of the limiting ring plate and the inner wall of the guide pillar hole, a large ring groove is machined in the middle of the guide pillar hole, and a first arc-shaped clamping strip is fixedly connected to the inner wall of the large ring groove; the forging die holder further comprises an auxiliary ring piece, the auxiliary ring piece comprises a ring column which is located on the same axis with the guide column hole and matched with the guide column hole, the top ring diameter of the ring column is matched with the annular limiting groove, an arc-shaped movable plate is slidably connected to the outer annular wall of the ring column in an embedded mode, and a second arc-shaped clamping strip is fixedly connected to the outer annular wall of the arc-shaped movable plate. A plurality of semicircular groove holes are formed in the inner annular wall of the arc-shaped movable plate, and air holes communicated with the semicircular groove holes are formed in the top of the annular column. The auxiliary ring piece is additionally arranged at the guide pillar hole to serve as an easily-damaged replaceable part, the service life of the die holder is prolonged, meanwhile, replacement is easy, and the production cycle is not affected.

Description

Technical Field

[0001] The invention belongs to the technical field of forging die bases, and in particular relates to a forging die base with a guide structure. Background Art

[0002] Traditional mold base with guide structure such as Figure 1 As shown, firstly, a guide pin is fixed on one mold base, and a hole is opened on another mold base as a guide. Since the mold base and the guide pin are made of mold steel with a relatively hard hardness, there is a problem of cutting wear on the guide pin and the guide pin hole. Over time, a large gap between the guide pin and the guide pin hole results, and the guiding accuracy is reduced. As a result, an entire mold base has to be scrapped, or the guide pin has to be remade and the guide hole has to be re-made. The above processing methods are very wasteful of resources and delay the production cycle. Summary of the invention

[0003] The present invention aims at solving the problems in the prior art and proposes the following technical solutions: A forging die seat with a guide structure comprises an upper die seat and a lower die seat, wherein a guide post hole is provided on the upper die seat, and a guide post located on the same axis as the guide post hole is fixedly connected to a side of the lower die seat close to the upper die seat, a limiting ring plate is fixedly connected to the upper edge of the inner wall of the guide post hole, an annular limiting groove is formed between the inner wall of the limiting ring plate and the inner wall of the guide post hole, a large annular groove is processed in the middle of the guide post hole, and a first arc-shaped clamping strip is fixedly connected to the inner wall of the large annular groove; The forging die seat also includes an auxiliary ring, which includes a ring column that is coaxial with the guide column hole and is adapted, the top ring diameter of the ring column is adapted to the annular limit groove, an arc-shaped movable plate is embedded and slidably connected to the outer annular wall of the ring column, a second arc-shaped clamping strip is fixedly connected to the outer annular wall of the arc-shaped movable plate, a plurality of semicircular slots are opened on the inner annular wall of the arc-shaped movable plate, and an air hole that is interconnected with the semicircular slots is opened on the top of the ring column; The auxiliary ring is inserted upward from the bottom end of the guide column hole at an angle that is staggered between the limit step and the first arc-shaped clip. When the top of the ring column begins to insert into the annular limit groove, an annular sealing cavity is formed between the annular limit groove and the top of the ring column. The auxiliary ring continues to squeeze upward so that the air in the annular sealing cavity is poured into the semicircular groove hole through the air hole, thereby pushing the arc-shaped movable plate to slide outward into the large annular groove. When the top of the ring column abuts against the upper edge of the inner wall of the annular limit groove, the auxiliary ring is rotated so that the second arc-shaped clip is staggered with the first arc-shaped clip, thereby realizing the fixed installation of the auxiliary ring.

[0004] As a preferred embodiment of the above technical solution, a positioning line is provided at the bottom of the upper die seat, and a bottom foot is fixedly connected to the lower edge of the outer annular wall of the ring column.

[0005] As a preferred embodiment of the above technical solution, a wear ring line is processed on the bottom of the ring column, and the wear ring line and the ring column are located on the same axis.

[0006] As a preferred embodiment of the above technical solution, a limiting step is set on the upper edge of the inner annular wall of the ring column, and when the top of the ring column abuts against the upper edge of the inner wall of the annular limiting groove, the bottom of the limiting ring plate abuts against the limiting step; the inner diameter of the ring column is adapted to the guide column and is smaller than the inner diameter of the limiting ring plate.

[0007] As a preferred embodiment of the above technical solution, the cross-sectional width of the first arc-shaped clamping strip is smaller than the cross-sectional width of the large annular groove; When the inner annular wall of the arc-shaped movable plate and the ring column are in contact with each other, the outer diameter of the second arc-shaped clamping strip is smaller than the outer diameter of the ring column.

[0008] As a preferred embodiment of the above technical solution, upper edges of both ends of the first arc-shaped clip are processed into inclined surfaces.

[0009] As a preferred embodiment of the above technical solution, the bottom and two sides of the second arc-shaped clip are semi-enclosed and fixedly connected with rubber pads.

[0010] As a preferred embodiment of the above technical solution, a third sealing ring is installed in a surrounding manner on the extension of the arc-shaped movable plate.

[0011] As a preferred embodiment of the above technical solution, a first sealing ring is installed on the upper edge of the outer annular wall at the top of the ring column, and a second sealing ring is installed on the upper edge of the inner annular wall at the top of the ring column.

[0012] As a preferred embodiment of the above technical solution, the ring column is made of copper.

[0013] As a preferred embodiment of the above technical solution, an arc-shaped groove is provided on the outer annular wall of the ring column, and the arc-shaped groove and the arc-shaped movable plate are matched.

[0014] As a preferred embodiment of the above technical solution, a limiting block is provided on the arc groove, and a limiting groove is provided on the arc movable plate, and the limiting block and the limiting groove are used for limiting the distance that the arc movable plate slides outward.

[0015] The beneficial effects of the present invention are: 1. The present invention adds an auxiliary ring as a vulnerable and replaceable part at the guide post hole. At the same time, the ring post is made of copper, which has a certain ductility. There is no serious cutting problem between the ring and the hard guide post. When the auxiliary ring is worn to a certain extent, it can be quickly replaced at a low price, which not only prolongs the life of the die base and reduces economic losses, but also is simple to replace without affecting the production cycle. 2. The auxiliary ring is inserted upward from the bottom end of the guide post hole. When inserting, the limit step and the first arc-shaped clamping strip are staggered. When starting to insert, Figure 5As shown, the outer diameter of the ring column and the inner diameter of the guide column hole are matched, thereby ensuring the coaxiality of the ring column and the guide column hole; then the ring column continues to be inserted upward, and an annular sealing chamber is formed between the annular limit groove and the top of the ring column, and the auxiliary ring member continues to squeeze upward so that the air in the annular sealing chamber is compressed, and the air in the annular sealing chamber is poured into the semicircular groove hole through the air hole, and the arc-shaped movable plate is pushed outward to slide into the large annular groove under the action of air pressure; when the top of the ring column is against the upper edge of the inner wall of the annular limit groove, the annular sealing chamber disappears, and the auxiliary ring member is limited in vertical height at the same time. At this time, the auxiliary ring member is rotated again so that the second arc-shaped clamping strip is staggered with the first arc-shaped clamping strip, thereby realizing the fixed installation of the auxiliary ring member, and the reverse operation can be performed for disassembly. The structural stability of the ring column in the vertical direction is ensured by the clamping connection between the second arc-shaped clamping strip and the first arc-shaped clamping strip; in summary, the auxiliary ring component of the present invention is not only easy to install and disassemble, but also ensures the coaxiality and structural stability of the auxiliary ring component when it is installed in the inner cavity of the guide column hole, and the practical effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 What is shown is a forging die seat with a guide structure in the prior art; Figure 2 What is shown is a three-dimensional structural schematic diagram of a forging die base with a guide structure in the present invention; Figure 3 The figure shows a bottom-up stereoscopic structure diagram of a die base with a guide post hole in a forging die base with a guide structure in the present invention; Figure 4 The figure shows a three-dimensional structural schematic diagram of an auxiliary ring in a forging die seat with a guide structure in the present invention; Figure 5 The figure shows the internal cross-sectional view of the upper die seat during the process of inserting the auxiliary ring into the guide post hole in a forging die seat with a guide structure in the present invention; Figure 6 The figure shows the internal section view of the upper die seat when the top of the ring column in the forging die seat with a guide structure in the present invention abuts against the upper edge of the inner wall of the annular limiting groove; Figure 7 Shown is a schematic diagram of the second arc-shaped clamping strip and the first arc-shaped clamping strip structure when the top of the ring column in a forging die seat with a guide structure in the present invention abuts against the upper edge of the inner wall of the annular limiting groove and then the auxiliary ring is rotated.

[0017] 11. Upper die seat; 12. Lower die seat; 13. Guide pillar; 110. Guide pillar hole; 111. Limiting ring plate; 1110. Annular limiting groove; 112. Positioning line; 113. Large annular groove; 114. First arc-shaped clamping strip; 20. Auxiliary ring; 21. Ring pillar; 22. Bottom foot; 23. Wear ring line; 24. Limiting step; 25. Arc-shaped movable plate; 26. Second arc-shaped clamping strip; 27. Air hole; 28. First sealing ring; 29. ​​Second sealing ring; 210. Rubber pad; 211. Semicircular groove hole; 212. Third sealing ring. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0019] Example like Figure 2 , Figure 3 As shown, a forging die base with a guide structure includes an upper die base 11 and a lower die base 12. The upper die base 11 is provided with a guide column hole 110. The lower die base 12 is fixedly connected to a guide column 13 located on the same axis as the guide column hole 110 on one side close to the upper die base 11. The forging die base also includes an auxiliary ring 20, which includes a ring column 21 located on the same axis as the guide column hole 110 and adapted thereto.

[0020] In order to solve the problem of cutting wear of the guide post 13 and the guide post hole 110, the present invention needs to remake the guide post 13 and the guide post hole 110, which wastes resources and delays the production cycle. An auxiliary ring 20 is added at the guide post hole 110 as a consumable and replaceable part. At the same time, the ring post 21 is made of copper. The copper material has a certain ductility and does not have serious cutting problems compared with the hard guide post 13. Moreover, when the auxiliary ring 20 is worn to a certain extent, it can be quickly replaced at a low price, which not only prolongs the life of the mold base and reduces economic losses, but also is simple to replace without affecting the production cycle.

[0021] In the present invention, the auxiliary ring 20 is a vulnerable and replaceable part, and the auxiliary ring 20 needs to be easy to install and disassemble. Common connection methods are threaded connection and bolt fixing. Threaded connection is difficult to ensure the coaxiality of the auxiliary ring 20 and the guide column hole 110 due to price accuracy and material issues, which affects the guiding operation; although the auxiliary ring 20 is fixed to the upper die seat 11 by bolts to ensure coaxiality, it is easy to make the bolts loose during the reciprocating guiding operation of the die seat, which is easy to cause greater cutting damage; In order to solve the above problems, the present invention makes the following improvements: like Figure 4 , Figure 5As shown, a limiting ring plate 111 is fixedly connected to the upper edge of the inner wall of the guide column hole 110, an annular limiting groove 1110 is formed between the inner wall of the limiting ring plate 111 and the inner wall of the guide column hole 110, a large annular groove 113 is processed in the middle of the guide column hole 110, and a first arc-shaped clamping strip 114 is fixedly connected to the inner wall of the large annular groove 113; the top ring diameter of the ring column 21 is adapted to the annular limiting groove 1110, an arc-shaped movable plate 25 is embedded and slidably connected to the outer annular wall of the ring column 21, a second arc-shaped clamping strip 26 is fixedly connected to the outer annular wall of the arc-shaped movable plate 25, a plurality of semicircular slots 211 are opened on the inner annular wall of the arc-shaped movable plate 25, and an air hole 27 interconnected with the semicircular slots 211 is opened on the top of the ring column 21; The auxiliary ring 20 is inserted upward from the bottom end of the guide post hole 110. When inserted, the limit step 24 and the first arc-shaped clamping strip 114 are staggered. Figure 5 As shown, the outer diameter of the ring column 21 is matched with the inner diameter of the guide column hole 110, thereby ensuring the coaxiality of the ring column 21 and the guide column hole 110; it should be noted that during the insertion process, the lower edge of the arc-shaped movable plate 25 first passes over the lower edge of the large annular groove 113, and the top of the ring column 21 begins to reach the lower edge of the annular limiting groove 1110, and then when the ring column 21 continues to be inserted upward, an annular sealing cavity is formed between the annular limiting groove 1110 and the top of the ring column 21, and a first sealing ring 28 is installed on the upper edge of the outer annular wall of the top of the ring column 21, and a second sealing ring 29 is installed on the upper edge of the inner annular wall of the top of the ring column 21. By arranging the first sealing ring 28 and the second sealing ring 29, the sealing of the annular sealing cavity is ensured; the auxiliary ring 20 continues to squeeze upward to The air in the annular sealing cavity is compressed, and the air in the annular sealing cavity is poured into the semicircular groove hole 211 through the air hole 27, and the arc movable plate 25 is pushed to slide outward into the large annular groove 113 under the action of air pressure; the arc movable plate 25 is surrounded by a third sealing ring 212, and the third sealing ring 212 is arranged to ensure that the arc movable plate 25 can be pushed outward under the action of air pressure; when the top of the ring column 21 is against the upper edge of the inner wall of the annular limiting groove 1110, the annular sealing cavity disappears, and the auxiliary ring member 20 is limited in vertical height at the same time. At this time, the auxiliary ring member 20 is rotated again so that the second arc clamping strip 26 is staggered with the first arc clamping strip 114, thereby realizing the fixed installation of the auxiliary ring member 20, and the reverse operation can be performed when disassembling. The structural stability of the ring column 21 in the vertical direction is ensured by the clamping of the second arc-shaped clamping strip 26 and the first arc-shaped clamping strip 114; in summary, the auxiliary ring 20 of the present invention is not only easy to install and disassemble, but also ensures the coaxiality and structural stability of the auxiliary ring 20 when it is installed in the inner cavity of the guide column hole 110, and the practical effect is better.

[0022] like Figure 3As shown, a positioning line 112 is provided at the bottom of the upper die seat 11, and a foot 22 is fixedly connected to the lower edge of the outer annular wall of the ring column 21. By providing the foot 22, the auxiliary ring 20 is convenient for the overall rotation after being inserted to the top, and when the foot 22 and the positioning line 112 coincide, it indicates that the rotation is in place. In addition, during the reciprocating guiding operation, when there is a certain angle misalignment between the auxiliary ring 20 and the guide column hole 110, by observing the misalignment of the foot 22 and the positioning line 112, the position can be adjusted in time to prevent the auxiliary ring 20 from detaching from the guide column hole 110.

[0023] The bottom of the ring column 21 is processed with a wear line 23, and the wear line 23 and the ring column 21 are located on the same axis. The wear line 23 is a wear precision ring. When the inner wall of the ring column 21 is constantly worn due to the reciprocating guide operation, it can be observed whether the wear degree reaches the position of the wear line 23 to determine whether the auxiliary ring 20 needs to be replaced.

[0024] like Figure 4 , Figure 5 As shown, a limiting step 24 is provided on the upper edge of the inner annular wall of the ring column 21, and when the top of the ring column 21 abuts against the upper edge of the inner wall of the annular limiting groove 1110, the bottom of the limiting ring plate 111 abuts against the limiting step 24; the inner diameter of the ring column 21 is adapted to the guide column 13 and is smaller than the inner diameter of the limiting ring plate 111. By providing the limiting step 24, not only the structural stability of the mutual engagement between the top of the ring column 21 and the limiting ring plate 111 is improved, but also when the bottom of the limiting ring plate 111 abuts against the limiting step 24, the sealing performance of the top of the ring column 21 and the annular limiting groove 1110 is further ensured; and the provision of the limiting step 24 reduces the inner diameter of the ring column 21, so that the inner diameter of the ring column 21 is adapted to the guide column 13 and can be smaller than the inner diameter of the limiting ring plate 111, so that the limiting ring plate 111 will not hinder the reciprocating guiding function of the guide column 13.

[0025] like Figure 5 , Figure 6 As shown, the cross-sectional width of the first arc-shaped clamping strip 114 is smaller than the cross-sectional width of the large annular groove 113; thus, the first arc-shaped clamping strip 114 is located at the periphery of the inner diameter of the guide post hole 110, thereby preventing the first arc-shaped clamping strip 114 from hindering the insertion of the auxiliary ring member 20; When the inner annular wall of the arc movable plate 25 and the ring column 21 are in contact, the outer diameter of the second arc clamping strip 26 is smaller than the outer diameter of the ring column 21. This design can avoid being blocked by the second arc clamping strip 26 and being unable to be inserted into the guide column hole 110 during the initial insertion stage.

[0026] like Figure 7 As shown, the upper edges of both ends of the first arc-shaped clamping strip 114 are processed into a bevel shape, which improves the smoothness of the initial misaligned clamping of the second arc-shaped clamping strip 26 and the first arc-shaped clamping strip 114.

[0027] The bottom and both sides of the second arc-shaped clamping strip 26 are semi-enclosed and fixedly connected with rubber pads 210. By providing the rubber pads 210, not only the wear of the second arc-shaped clamping strip 26 and the first arc-shaped clamping strip 114 when they are in hard contact is reduced, but also after the second arc-shaped clamping strip 26 and the first arc-shaped clamping strip 114 are misaligned and clamped, the rubber pads 210 redundantly fill the misaligned gap between the second arc-shaped clamping strip 26 and the first arc-shaped clamping strip 114, further ensuring the structural stability after the second arc-shaped clamping strip 26 and the first arc-shaped clamping strip 114 are misaligned and clamped.

[0028] An arc groove is provided on the outer annular wall of the ring column 21, and the arc groove is matched with the arc movable plate 25. A limit block is provided on the arc groove, and a limit groove is provided on the arc movable plate 25. The limit block and the limit groove are used to limit the distance that the arc movable plate 25 slides outward; a third sealing ring 212 is installed around the extension of the arc movable plate 25. The third sealing ring 212 is provided to ensure the sealing between the arc groove and the arc movable plate 25, so that the arc movable plate 25 can be pushed outward under the action of air pressure.

[0029] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A forging die base with a guide structure, comprising an upper die base (11) and a lower die base (12), wherein a guide post hole (110) is provided on the upper die base (11), and a guide post (13) located on the same axis as the guide post hole (110) is fixedly connected to a side of the lower die base (12) close to the upper die base (11), wherein: A limiting ring plate (111) is fixedly connected to the upper edge of the inner wall of the guide post hole (110); an annular limiting groove (1110) is formed between the inner wall of the limiting ring plate (111) and the inner wall of the guide post hole (110); a large annular groove (113) is processed in the middle of the guide post hole (110); a first arc-shaped clamping strip (114) is fixedly connected to the inner wall of the large annular groove (113); The forging die seat also includes an auxiliary ring member (20), the auxiliary ring member (20) includes a ring column (21) which is coaxial with the guide column hole (110) and is adapted thereto, the top ring diameter of the ring column (21) is adapted to the annular limiting groove (1110), an arc-shaped movable plate (25) is embedded and slidably connected to the outer annular wall of the ring column (21), a second arc-shaped clamping strip (26) is fixedly connected to the outer annular wall of the arc-shaped movable plate (25), a plurality of semicircular slots (211) are provided on the inner annular wall of the arc-shaped movable plate (25), and an air hole (27) which is interconnected with the semicircular slots (211) is provided on the top of the ring column (21); The auxiliary ring member (20) is inserted upward from the bottom end of the guide column hole (110) at an angle that is staggered between the limiting step (24) and the first arc-shaped clamping strip (114). When the top of the ring column (21) begins to be inserted into the annular limiting groove (1110), an annular sealing cavity is formed between the annular limiting groove (1110) and the top of the ring column (21). The auxiliary ring member (20) continues to squeeze upward so that the air in the annular sealing cavity is poured into the semicircular groove hole (211) through the air hole (27), thereby pushing the arc-shaped movable plate (25) to slide outward into the large annular groove (113). When the top of the ring column (21) abuts against the upper edge of the inner wall of the annular limiting groove (1110), the auxiliary ring member (20) is rotated so that the second arc-shaped clamping strip (26) is staggered and clamped with the first arc-shaped clamping strip (114), thereby achieving fixed installation of the auxiliary ring member (20).

2. A forging die base with a guide structure according to claim 1, characterized in that: A positioning line (112) is provided at the bottom of the upper die seat (11), and a bottom foot (22) is fixedly connected to the lower edge of the outer annular wall of the ring column (21).

3. The forging die base with a guide structure according to claim 1, characterized in that: A wear ring line (23) is machined on the bottom of the ring column (21), and the wear ring line (23) and the ring column (21) are located on the same axis.

4. The forging die base with a guide structure according to claim 1, characterized in that: A limiting step (24) is provided on the upper edge of the inner annular wall of the ring column (21), and when the top of the ring column (21) abuts against the upper edge of the inner wall of the annular limiting groove (1110), the bottom of the limiting ring plate (111) abuts against the limiting step (24); the inner diameter of the ring column (21) is compatible with the guide column (13) and is smaller than the inner diameter of the limiting ring plate (111).

5. The forging die base with a guide structure according to claim 1, characterized in that: The cross-sectional width of the first arc-shaped clamping strip (114) is smaller than the cross-sectional width of the large annular groove (113); When the inner annular wall of the arc-shaped movable plate (25) and the ring column (21) are in contact with each other, the outer diameter of the second arc-shaped clamping strip (26) is smaller than the outer diameter of the ring column (21).

6. The forging die base with a guide structure according to claim 1, characterized in that: The upper edges of both ends of the first arc-shaped clamping strip (114) are processed into inclined surfaces.

7. The forging die base with a guide structure according to claim 1, characterized in that: The bottom and two sides of the second arc-shaped clamping strip (26) are semi-enclosed and fixedly connected with rubber pads (210).

8. The forging die base with a guide structure according to claim 1, characterized in that: A first sealing ring (28) is installed on the upper edge of the outer annular wall at the top of the annular column (21), a second sealing ring (29) is installed on the upper edge of the inner annular wall at the top of the annular column (21), and a third sealing ring (212) is installed in a surrounding manner on the extension of the arc-shaped movable plate (25).

9. The forging die base with a guide structure according to claim 1, characterized in that: An arc-shaped groove is provided on the outer annular wall of the ring column (21), and the arc-shaped groove is matched with the arc-shaped movable plate (25).

10. The forging die base with a guide structure according to claim 11, characterized in that: A limiting block is provided on the arc-shaped groove, and a limiting groove is provided on the arc-shaped movable plate (25), wherein the limiting block and the limiting groove are used to limit the distance that the arc-shaped movable plate (25) slides outward.

Images