Die set guide rod quick-release device and powder forming press die set structure

Abstract

The utility model discloses a mould frame guide rod quick release device and a powder forming press mould frame structure, which comprise two expansion sleeves, a positioning ring sleeve and a locking screw, the middle parts of the expansion sleeves and the positioning ring sleeve are provided with a first through hole and a second through hole for a guide rod to pass through, the two ends of the expansion sleeves are respectively provided with an annular limiting part and an expansion frustum, and the annular limiting part is provided with a first through hole and a second through hole. Any position of the expansion sleeve in the axial direction of the expansion sleeve is broken and forms a gap, expansion contact parts are arranged on the inner walls of the two ends of the second through hole in a protruding mode, and a plurality of first locking screw holes and second locking screw holes are formed in the end face of the annular limiting part and the end face of the positioning ring sleeve. The expansion frustums of the two expansion sleeves can be inserted into the second through holes at the upper end and the lower end of the positioning ring sleeve respectively, and the locking screws can penetrate through the first locking screw holes to be in threaded connection with the second locking screw holes respectively, so that the expansion sleeves are forced to contract and lock the guide rods, and the two expansion sleeves are fixedly connected with the positioning ring sleeve. On the premise of ensuring the accuracy of the guide rod, the guide rod is convenient to mount and dismount, compact in structure and small in size.

Description

Technical Field

[0001] The utility model relates to the technical field of powder forming presses, and more specifically to a die frame guide rod quick-release device and a powder forming press die frame structure. Background Art

[0002] A powder forming press is a device that presses metal powder or ceramic powder into a fixed-shaped product. The mold frame structure of the powder forming equipment on the market is usually as follows: Figure 1 As shown, the guide rod 10 of the mold frame is a whole independent setting with a length of 2.36 meters. Due to the limited installation space, the installation is very difficult. In order to improve the above problem, it is currently proposed that a plurality of segmented guide rods can be used to combine and install the mold frame to reduce the length of a single guide rod. Therefore, it is necessary to provide a mold frame guide rod quick-release device that acts on the guide rod and can be easily installed and disassembled. Utility Model Content

[0003] The purpose of the utility model is to overcome the above-mentioned defects in the prior art and to provide a mold frame guide rod quick-release device and a powder forming press mold frame structure which are easy to install and disassemble, compact in structure, small in size, and accurately and stably positioned while ensuring the accuracy of the guide rod.

[0004] To achieve the above-mentioned purpose, the first aspect of the utility model provides a mold frame guide rod quick-release device, including two expansion sleeves, a positioning ring sleeve and a plurality of locking screws, the middle part of the expansion sleeve is provided with a first through hole for the guide rod to pass through along its axial direction, the middle part of the positioning ring sleeve is provided with a second through hole for the guide rod to pass through and corresponding to the first through hole along its axial direction, one end of the expansion sleeve is arranged to be an annular limiting portion corresponding to the end face shape of the positioning ring sleeve, the other end of the expansion sleeve is convexly provided with an expansion cone, the expansion sleeve is broken at any point along its axial direction to form a gap, and the inner walls at both ends of the second through hole are convexly provided with a plurality of The expansion contact portion has a tapered matching, the diameter of the tail end of the expansion cone is larger than the diameter of the opening end of the second through hole, a plurality of evenly distributed first locking screw holes are provided on the end surface of the annular limiting portion along its axial direction, and second locking screw holes corresponding to the first locking screw holes are provided on the upper and lower end surfaces of the positioning ring sleeve respectively, the expansion cones of the two expansion sleeves can be respectively inserted into the second through hole at the upper and lower ends of the positioning ring sleeve and contact with the expansion contact portion, a plurality of locking screws can pass through the first locking screw hole and be threadedly connected with the second locking screw hole, thereby forcing the expansion sleeve to contract the locking guide rod and realize the fixed connection between the two expansion sleeves and the positioning ring sleeve.

[0005] Preferably, a rotating portion having a cylindrical shape and in contact with the outer wall surface of the guide rod is connected between the two expansion contact portions of the second through hole of the positioning ring sleeve.

[0006] Preferably, the expansion sleeve is made of metal material.

[0007] Preferably, the positioning ring sleeve is made of metal material.

[0008] The second aspect of the utility model provides a powder forming press mold frame structure, including at least one upper mold plate, at least one lower mold plate and a plurality of guide rods, wherein the upper mold plate and the lower mold plate are respectively mounted on their corresponding guide rods, and the ends of every two guide rods corresponding to each other in the axial direction are fixedly connected by a mold frame guide rod quick-release device.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] The utility model has a simple structure and a reasonable design. By using the mold frame guide rod quick-release device to connect between the ends of every two guide rods corresponding in the axial direction, the length of a single guide rod can be reduced. The two expansion sleeves are respectively sleeved on the outside of the corresponding guide rods, and are contracted, locked and fixedly positioned by positioning ring sleeves and locking screws, which can effectively prevent the guide rods from sliding relative to each other at the connection, ensure that the relative position between the two remains unchanged, thereby ensuring the stability and accuracy of the entire guide rod connection. The mold frame guide rod quick-release device is easy to install and disassemble while ensuring the accuracy of the guide rods, and has a compact structure, a small size, and accurate and stable positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 It is a structural schematic diagram of the background technology provided by a mold frame guide rod quick release device provided in the first embodiment of the utility model;

[0013] Figure 2 It is a structural schematic diagram of a mold frame guide rod quick-release device provided in the first embodiment of the utility model;

[0014] Figure 3 It is an exploded schematic diagram of a mold frame guide rod quick-release device provided in the first embodiment of the utility model;

[0015] Figure 4 It is a cross-sectional schematic diagram of a mold frame guide rod quick-release device provided in the first embodiment of the utility model;

[0016] Figure 5It is a cross-sectional exploded schematic diagram of a mold frame guide rod quick-release device provided in the first embodiment of the utility model;

[0017] Figure 6 This is a partial structural schematic diagram of a powder forming press die frame structure provided in the first embodiment of the utility model;

[0018] Figure 7 This is a schematic diagram of the assembly of the upper and lower three-die frame provided as an example in the second embodiment of the present utility model. Figure 1 ;

[0019] Figure 8 This is a schematic diagram of the assembly of the upper and lower three-die frame provided as an example in the second embodiment of the present utility model. Figure 2 ;

[0020] Fig. 9 It is an exploded schematic diagram of an upper and lower three-die frame provided as an example in the second embodiment of the present utility model;

[0021] Fig.10 It is an exploded schematic diagram of the assembly of an upper and lower three-die frame provided as an example in the second embodiment of the present utility model. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1

[0024] Please refer to Figure 1 The first embodiment of the utility model provides a mold frame guide rod quick release device, including two expansion sleeves 1, a positioning ring sleeve 2 and a plurality of locking screws 3. The various components of this embodiment are described in detail below with reference to the accompanying drawings.

[0025] like Figure 2 and Figure 3 As shown, the middle part of the expansion sleeve 1 may be provided with a first through hole 11 for the guide rod to pass through along its axial direction, the middle part of the positioning ring sleeve 2 may be provided with a second through hole 21 for the guide rod to pass through and corresponding to the first through hole 11 along its axial direction, one end of the expansion sleeve 1 is provided with an annular limiting portion 12 corresponding to the end surface shape of the positioning ring sleeve 2, the other end of the expansion sleeve 1 is provided with an expansion cone 13, and the expansion sleeve 1 is broken at any point along its axial direction to form a gap 14. The gap 14 can provide a deformation gap for the expansion sleeve 1 to facilitate its contraction.

[0026] like Figure 4 and Figure 5 As shown, the inner walls at both ends of the second through hole 21 can be convexly provided with expansion contact portions 22 that match the taper of the expansion cone 13, the tail end diameter of the expansion cone 13 is larger than the opening end diameter of the second through hole 21, and a plurality of evenly distributed first locking screw holes 121 are opened on the end face of the annular limiting portion 12 along its axial direction, and second locking screw holes 23 corresponding to the first locking screw holes 121 are respectively opened on the upper and lower end faces of the positioning ring sleeve 2.

[0027] In specific implementation, the expansion cones 13 of the two expansion sleeves 1 can be respectively inserted into the second through holes 21 at the upper and lower ends of the positioning ring sleeve 2 and contact the expansion contact portion 22, and the locking screws 3 can respectively pass through the first locking screw hole 121 and be threadedly connected with the second locking screw hole 23, thereby forcing the expansion sleeve 1 to contract the locking guide rod and realize the fixed connection between the two expansion sleeves 1 and the positioning ring sleeve 2.

[0028] Preferably, a rotating portion 24 which is cylindrical and contacts the outer wall surface of the mold frame guide rod may be connected between the two expansion contact portions 22 of the second through hole 21 of the positioning ring sleeve 2 .

[0029] In this embodiment, the expansion sleeve 1 can be made of metal material.

[0030] Furthermore, the positioning ring sleeve 2 can also be made of metal material.

[0031] Among them, the two expansion sleeves 1 can be respectively sleeved on the outside of the two axially corresponding guide rods, and the guide rods are compressed by the positioning ring sleeve 2 and the locking screw 3 to provide a connection tightening force. This tightening force can effectively prevent the two guide rods from sliding relative to each other at the connection, ensuring that the relative position between the guide rods remains unchanged, thereby ensuring the stability and accuracy of the entire mold frame guide rod. In addition, the mold frame guide rod quick release device can not only withstand a certain load, but also shrink, lock and fix the guide rod in the axial direction.

[0032] Embodiment 2

[0033] like Figure 6 As shown, the second embodiment of the utility model provides a powder forming press die frame structure, including at least one upper die plate 7, at least one lower die plate 8 and a plurality of guide rods 9, the upper die plate 7 and the lower die plate 8 are respectively mounted on their respective corresponding guide rods 9, and the ends of every two guide rods 9 corresponding to each other in the axial direction are fixedly connected by the die frame guide rod quick release device of the above-mentioned first embodiment.

[0034] In this embodiment, the mold frame guide rod quick release device can be adapted to a variety of powder forming press mold frames. For example, the mold frame mechanism of the powder forming press mold frame can be set as an upper mold frame mechanism, an upper second mold frame mechanism, an upper third mold frame mechanism, or an upper fourth mold frame mechanism; and its lower mold mechanism can be set as a lower second mold frame mechanism, a lower third mold frame mechanism, a lower fourth mold frame mechanism, a lower fifth mold frame mechanism, a lower sixth mold frame mechanism, or a lower seventh mold frame mechanism.

[0035] The powder forming press die frame structure of the second embodiment can be described by taking an upper and lower three-die frame as an example.

[0036] like Figure 7 and Figure 8 As shown, the upper and lower three-die frame may include an upper punch plate 31, an upper guide column 32, a middle die plate 33, a middle die bottom plate 34, a middle die guide column 35, a lower plate 36, a first bridge support block 37, a lower second plate 38, a lower third plate 39, a second bridge support block 40, a lower fixed plate 41, and a lower guide column 42. An upper die plug hole 311 is provided in the middle of the upper punch plate 31. The upper guide column 32 is longitudinally mounted on the upper punch plate 31. The middle die plate 33, the lower plate 36, the lower second plate 38, the lower third plate 39, the middle die bottom plate 34, and the lower fixed plate 41 are arranged in sequence from top to bottom. The upper guide column 32 runs through the upper punch plate 31 and the middle die plate 33. The middle die guide column 35 is connected between the middle die plate 33 and the lower fixed plate 41 and passes through the lower plate 36, the lower second plate 38, the lower third plate 39, the middle die bottom plate 34, and the lower fixed plate 41. and the lower three plates 39, the lower guide column 42 is connected to the bottom of the upper guide column 32 through the above-mentioned mold frame guide rod quick-release device and passes through the lower two plates 38, the lower three plates 39 and the lower fixed plate 41, the middle template 33, the lower plate 36, the lower two plates 38, the lower three plates 39 and the lower fixed plate 41 are provided with through holes 30 on both sides, the lower plate 36 is installed on the top of two longitudinally arranged first bridging support blocks 37 and together form an inverted U-shaped structure, the lower ends of the two first bridging support blocks 37 respectively pass through the through holes 30 of the lower two plates 38 and the lower three plates 39 and are fixedly connected to the lower three plates 39, the top and bottom of the second bridge support block 40 are respectively abutted against the bottom surface of the lower three plates 39 and the top surface of the lower fixed plate 41, and the lower plate 36 is provided with a lower mold socket 361.

[0037] Among them, guide copper sleeves 5 are respectively provided between the upper guide column 32 and the upper punch plate and the middle template 33, and between the lower guide column 42 and the lower second plate 38 and the lower third plate 39. Among them, a dust cover 6 is provided on the guide copper sleeve 5 connected between the upper guide column 32 and the upper punch plate and between the upper guide column 32 and the middle template 33. Among them, the guide copper sleeve 5 is conducive to the smooth lifting and lowering of the plate body along the guide column.

[0038] like Fig. 9As shown, it also includes two first screw rods 71, two first screw rod nuts 711, two second screw rods 72, two second screw rod nuts 721, two third screw rods 73 and two third screw rod nuts 731. The first screw rods 71 ​​are respectively rotatably connected between the middle template 33 and the lower fixed plate 41 and pass through the lower fixed plate 41. The first screw rod nuts 711 are respectively threadedly connected to the first screw rod 71. The second screw rod 72 is respectively rotatably connected between the lower two plates 38 and the two sides of the lower fixed plate 41 and pass through the lower fixed plate 41. The second screw rod nuts 721 are respectively threadedly connected to the second screw rod 72. The third screw rod 73 is respectively rotatably connected between the lower three plates 39 and the two sides of the lower fixed plate 41 and pass through the lower fixed plate 41. The third screw rod nuts 731 are respectively threadedly connected to the third screw rod 73.

[0039] When working, the new upper and lower three-mold frame structure of the second embodiment of the present invention can be installed in combination with a lifting drive device. The lifting drive device can be respectively set to common motors and other transmission components currently on the market for use in conjunction with the above-mentioned screw rod + nut. Of course, other drive devices, such as cylinders, etc., can also be used, which is not limited to this embodiment.

[0040] In the specific installation of this embodiment, Figure 7 , Figure 8 and Fig.10 As shown, one of the expansion sleeves 1 of the mold frame guide rod quick-release device is upwardly sleeved on the top of the lower guide column 42, and one end of the second through hole 21 of the positioning ring sleeve 2 is downwardly sleeved on the expansion cone 13 at the top of the lower guide column 42, and then the other expansion sleeve 1 of the mold frame guide rod quick-release device is sleeved on the bottom end of the upper guide column 32, and then the upward end of the second through hole 21 of the positioning ring sleeve 2 is sleeved on the expansion cone 13 at the bottom end of the upper guide column 32, and then the positioning ring sleeve 2 is rotated so that the second locking screw holes 23 on the upper and lower end surfaces correspond to the first locking screw holes 121 and the insertion hole 122 of each expansion sleeve 1 respectively, and finally the locking screws 3 are respectively passed through the first locking screw holes 121 and then threadedly connected with the second locking screw holes 23, thereby forcing the expansion sleeve 1 to contract and lock the guide rod and realize the fixed connection between the two expansion sleeves 1 and the positioning ring sleeve 2, thereby realizing the fixed connection between the upper guide column 32 and the lower guide column 42.

[0041] In summary, the utility model can reduce the length of a single guide rod by using the mold frame guide rod quick-release device to connect between the ends of every two guide rods corresponding in the axial direction. The two expansion sleeves are respectively sleeved on the outside of the corresponding guide rods, and are shrunk, locked and fixed in position by positioning ring sleeves and locking screws, which can effectively prevent the guide rods from sliding relative to each other at the connection point, ensure that the relative position between the two remains unchanged, thereby ensuring the stability and accuracy of the entire guide rod connection. The mold frame guide rod quick-release device is easy to install and disassemble while ensuring the accuracy of the guide rods, and has a compact structure, small size, and precise and stable positioning.

[0042] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A mold frame guide rod quick release device, characterized in that: The invention comprises two expansion sleeves (1), a positioning ring sleeve (2) and a plurality of locking screws (3); a first through hole (11) for a guide rod to pass through is provided in the middle of the expansion sleeve (1) along its axial direction; a second through hole (21) for a guide rod to pass through is provided in the middle of the positioning ring sleeve (2) along its axial direction; an annular limiting portion (12) corresponding to the end face shape of the positioning ring sleeve (2) is provided at one end of the expansion sleeve (1); an expansion cone (13) is provided at the other end of the expansion sleeve (1); the expansion sleeve (1) is broken at any point along its axial direction to form a gap (14); expansion contact portions (22) matching the taper of the expansion cone (13) are provided on the inner walls of the two ends of the second through hole (21); the expansion cone (13) is provided with a plurality of locking screws (3); The diameter of the tail end of the annular limiting portion (13) is larger than the diameter of the opening end of the second through hole (21); a plurality of evenly distributed first locking screw holes (121) are provided on the end surface of the annular limiting portion (12) along its axial direction; second locking screw holes (23) corresponding to the first locking screw holes (121) are provided on the upper and lower end surfaces of the positioning ring sleeve (2); the expansion cones (13) of the two expansion sleeves (1) can be respectively inserted into the second through hole (21) at the upper and lower ends of the positioning ring sleeve (2) and contact the expansion contact portion (22); the locking screws (3) can respectively pass through the first locking screw hole (121) and be threadedly connected with the second locking screw hole (23), thereby forcing the expansion sleeve (1) to contract the locking guide rod and realize the fixed connection between the two expansion sleeves (1) and the positioning ring sleeve (2).

2. A mold frame guide rod quick release device according to claim 1, characterized in that: A rotating portion (24) in a cylindrical shape and in contact with the outer wall surface of the guide rod is connected between the two expansion contact portions (22) of the second through hole (21) of the positioning ring sleeve (2).

3. A mold frame guide rod quick release device according to claim 1, characterized in that: The expansion sleeve (1) is made of metal material.

4. A mold frame guide rod quick release device according to claim 1, characterized in that: The positioning ring sleeve (2) is made of metal material.

5. A powder forming press die frame structure, comprising at least one upper die plate (7), at least one lower die plate (8) and a plurality of guide rods (9), wherein the upper die plate (7) and the lower die plate (8) are respectively mounted on their corresponding guide rods (9), characterized in that: The ends of each two guide rods (9) corresponding to each other in the axial direction are fixedly connected by the mold frame guide rod quick release device described in any one of claims 1 to 4.

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