Press tooling fixture die holder

Abstract

The utility model discloses a kind of press fixed mould nest, including die pad and nut, die pad is circular annular groove, die pad bottom outer side wall has flange structure, for with the fixed connection of workbench of press, die pad bottom surface center has round hole, the inner wall of die pad has thread, nut is circular ring structure, the outer diameter of nut upper section is greater than the outer diameter of nut lower section, the outer wall of nut lower section has the thread matched with die pad, the inner wall of nut is equipped with inner stop in lower part, with the outer stop of mould nest side wall is adapted.The utility model is convenient to change mould nest, greatly improve the equipment utilization and the flexibility of small batch production;Provided locking force is big and evenly distributed, can effectively prevent mould displacement under huge impact, pop out, eliminate major safety accidents;With centering positioning function, the deviation of each installation can be controlled in micron level, is the root of guaranteeing product consistency;Reduce the vibration and impact damage of mould nest itself, prolong service life.

Description

Technical Field

[0001] This utility model belongs to the technical field of hydraulic press forging equipment, specifically relating to a press fixture fixing mold base that can both stably fix the fixture and facilitate fixture removal. Background Technology

[0002] A press die holder is a specialized tooling component installed on the press worktable. It enables the quick, accurate, and safe installation and fixation of production dies (or jigs) on the press worktable, ensuring that every stamping or pressing action is completed in a precise position.

[0003] The existing jig holder is an annular structure with an outer circumferential flange. The flange is used to fix it to the worktable. A ring of threaded holes is evenly distributed on the side wall of the jig holder. The jig is placed into the annular ring of the jig holder, and then bolts are passed through the threaded holes of the jig holder. The bolt ends are pressed against the outer wall of the jig to fix and center the jig. There are two types of jig designs: one is a tight fit between the outer wall of the jig and the inner wall of the jig holder. While this structure effectively prevents the jig from shifting upwards, it makes it difficult to separate the jig from the jig holder, leading to difficulties in jig changing. The other type is a clearance fit, using bolts for positioning and locking. While this structure allows for easy separation of the jig from the jig holder, the bolts are not threaded but rather abutted, resulting in insufficient bolt tightening force and a tendency for the jig to shift upwards, leading to a low forging yield. Summary of the Invention

[0004] The purpose of this utility model is to overcome the defects in the prior art and provide a press machine fixing die holder, which solves the contradiction between the difficulty in separating the die and the die holder and the insufficient fixing ability of the die holder for the die in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a press fixing die holder, comprising a die holder pad and a nut, wherein the die holder pad is an annular groove, and the outer wall of the bottom of the die holder pad has a flange structure for fixed connection with the worktable of the press, the bottom surface of the die holder pad has a circular hole at the center, and the inner wall of the die holder pad has threads, the nut is an annular structure, the outer diameter of the upper section of the nut is larger than the outer diameter of the lower section of the nut, the outer wall of the lower section of the nut has threads that mate with the die holder pad, the inner wall of the nut has an inner stop at the lower part, which matches the outer stop of the die holder side wall, and an annular groove is provided in the upper half of the inner wall of the nut, the inner wall of the nut from top to bottom is a first mating section, an annular groove, a second mating section and an inner stop, the total height of the first mating section and the second mating section is not greater than half of the total height of the nut.

[0006] Further optimization involves a threaded hole horizontally provided on the outer side wall of the upper section of the nut, for connecting to the worktable via a tooling fixture.

[0007] Further optimization involves providing an annular protrusion on the inner bottom surface of the mold base pad around the circular hole, with the outer diameter of the annular protrusion matching the outer diameter of the outer stop of the mold.

[0008] Further optimization involves the first and second mating sections of the nut having the same inner diameter, and the inner diameters of the first and second mating sections being equal to the outer diameter of the fixture, or the inner diameters of the first and second mating sections being clearance-fitted with the outer diameter of the fixture.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0010] 1. It facilitates tire changing, greatly improving equipment utilization and the flexibility of small-batch production.

[0011] 2. The locking force provided is much greater than that of traditional bolts and is evenly distributed, which can effectively prevent the mold from shifting or popping out under huge impact, thus eliminating major safety accidents.

[0012] 3. It has a centering and positioning function, and the deviation of each installation can be controlled within the micron level, which is the foundation for ensuring product consistency.

[0013] 4. Standardized and fixed molds reduce vibration and impact damage to the molds themselves, making disassembly, assembly, and maintenance convenient and extending their service life. Attached Figure Description

[0014] Figure 1 A schematic diagram showing the fit between the die holder and the die for the press.

[0015] Figure 2 A schematic diagram of the cross-sectional structure of the die holder for the press.

[0016] Figure 3 This is a top view of the mold base pad.

[0017] The markings in the diagram are: 1-mold base pad, 2-nut, 3-gundam, 101-round hole, 102-flange structure, 103-annular protrusion, 201-first mating section, 202-annular groove, 203-second mating section, 204-inner stop. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] like Figure 1As shown, this utility model provides a press fixing die mold base, including a die base pad 1 and a nut 2. The die base pad 1 is an annular groove. The bottom outer wall of the die base pad 1 has a flange structure 102 for fixed connection with the worktable of the press. The nut 2 and the die base pad 1 are threadedly connected to clamp the die 3 between the two and fix it.

[0020] like Figure 2 and Figure 3 As shown, the bottom surface of the mold base pad 1 has a circular hole 101 at the center for the extension and take-off structure of the lower part of the press to pass through. The inner wall of the mold base pad 1 has threads. The inner bottom surface of the mold base pad 1 has an annular protrusion 103 around the circular hole 101. The outer diameter of the annular protrusion 103 is consistent with the outer diameter of the outer stop of the die 3, which is used for centering and positioning.

[0021] like Figure 2 As shown, the nut 2 has a ring structure. The outer diameter of the upper section of the nut is larger than the outer diameter of the lower section. The outer wall of the lower section of the nut has threads that mate with the mold base pad. The inner wall of the nut 2 has an inner stop 204 at the bottom, which matches the outer stop of the side wall of the die 2. An annular groove 202 is provided on the upper half of the inner wall of the nut 2. The inner wall of the nut 2 consists of a first mating section 201, an annular groove 202, a second mating section 203, and an inner stop 204 from top to bottom. The first mating section 201... 1. The total height of the first and second mating sections 203 is not greater than half the total height of the nut 2. The inner diameters of the first and second mating sections 201 and 203 of the nut 2 are the same. The inner diameters of the first and second mating sections 201 and 203 are equal to the outer diameter of the fixture 3 or the inner diameters of the first and second mating sections 201 and 203 are clearance-fitted with the outer diameter of the fixture 3, so that the outer wall of the fixture 3 does not fit tightly against the inner wall of the nut 2 everywhere, thus preventing the fixture 3 from being difficult to remove.

[0022] As another embodiment, the other structures are the same as in embodiment 1, except that: the nut 2 has a threaded hole horizontally provided on the outer side wall of the upper section of the nut, which is used to connect to the workbench through the tooling to enhance the stability of the overall structure.

[0023] In use, first, center and position the die base pad 1, and fix the die base pad 1 to the designated position on the press worktable with bolts; then, select the corresponding specification of the jig 3 according to the specification of the workpiece to be forged, place the jig 3 in the die base pad 1 and keep the outer stop circumference of the jig 3 aligned with the annular protrusion 103; then, thread the nut 2 to the die base pad 1 until the inner stop 204 of the nut 2 matches the outer stop of the jig 3 to press and fix the jig 3 between the die base pad 1 and the nut 2.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A press fixture mold base, characterized in that: The device includes a mold base pad and a nut. The mold base pad is an annular groove with a flange structure on the outer side wall of the bottom for fixed connection with the worktable of the press. The mold base pad has a circular hole at the center of the bottom surface and threads on the inner wall. The nut is an annular structure with the outer diameter of the upper section being larger than that of the lower section. The outer wall of the lower section of the nut has threads that mate with the mold base pad. The inner wall of the nut has an inner stop at the bottom, which matches the outer stop of the mold side wall. An annular groove is provided in the upper half of the inner wall of the nut. The inner wall of the nut consists of a first mating section, an annular groove, a second mating section, and an inner stop from top to bottom. The sum of the heights of the first and second mating sections is not greater than half of the total height of the nut.

2. The press fixing die holder according to claim 1, characterized in that: The nut has a threaded hole horizontally provided on the outer side wall of the upper section for connecting to the workbench via a tool.

3. The press fixing die holder according to claim 1, characterized in that: The inner bottom surface of the mold base pad has an annular protrusion around the outer periphery of the circular hole, and the outer diameter of the annular protrusion is consistent with the outer diameter of the outer stop of the mold.

4. The press fixing die holder according to claim 1, characterized in that: The first and second mating sections of the nut have the same inner diameter, and the inner diameter of the first and second mating sections is equal to the outer diameter of the fixture, or the inner diameter of the first and second mating sections is clearance-fitted with the outer diameter of the fixture.

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