Connecting structure of connecting rod and slide block of hot die forging press

Abstract

The utility model provides a kind of hot die forging press connecting rod and slider connecting structure, it is related to hot die forging press technical field, the connecting rod and slider connecting structure include connecting rod, slider and step columnar connecting rod pin, connecting rod pin includes the adjusting section in middle and the connecting section of two ends symmetry, eccentric part is equipped on adjusting section.Slider is equipped with the installation cavity of top opening, connecting rod pin is horizontally placed in cavity, its two end connecting section is rotatably connected with the connecting hole of slider two sides, the supporting part of supporting middle connecting section is equipped in installation cavity, form stable high-strength three-point support.Connecting rod lower end is set on eccentric part, another upper end extends installation cavity and is connected with equipment main shaft;The connecting rod pin of the utility model converts two-point support into three-point support when a pin shaft bears concentrated load, to greatly enhance the bending resistance of connecting rod pin, improve the reliability of equipment operation.

Description

Technical Field

[0001] This utility model relates to the field of hot forging press technology, and in particular to a connecting structure between the connecting rod and the slide block of a hot forging press. Background Technology

[0002] Hot forging presses are key equipment in the metal forging industry. They apply immense pressure to metal billets under high temperatures, causing plastic deformation within a die to quickly produce high-quality forgings with precise shapes and dimensions. During operation, the transmission of power to the slider via the connecting component between the connecting rod and the slider is the core of the forging process. Currently, many hot forging presses on the market use an integrated columnar connecting rod pin to connect the connecting rod and the slider. However, because the enormous forces generated by the connecting rod and slider during forging are directly applied to this connecting rod pin, under long-term, high-load operation, this columnar connecting rod pin is prone to bending deformation or even breakage, leading to malfunctions in the linkage parts of the equipment and affecting the working accuracy and operational reliability of the press. Utility Model Content

[0003] In view of this, this utility model proposes a connecting rod and slider connection structure for a hot forging press to improve the problem in the prior art where the force on both the connecting rod and slider is concentrated on the connecting rod pin, which leads to abnormal situations and subsequent failures in the linkage parts of the equipment.

[0004] The technical solution of this utility model is implemented as follows: This utility model provides a connecting rod and slider connection structure for a hot forging press, which includes a connecting rod and a slider, and also includes a stepped columnar connecting rod pin connecting the connecting rod and the slider. The connecting rod pin includes an intermediate section and a connecting section symmetrically connected to both ends of the adjusting section along the axial direction. The intermediate section and the connecting section are coaxially arranged, and an eccentric portion is provided at one end of the connecting section near the intermediate section. The slider has a mounting cavity with a top opening. The connecting rod pin is horizontally disposed in the mounting cavity. The slider has connecting holes on both sides that communicate with the mounting cavity. The connecting section is rotatably connected to the connecting holes. The bottom surface of the mounting cavity has a support portion that matches the surface of the middle section. The lower end of the connecting rod is mounted on the eccentric portion, and the upper end extends out of the outside of the mounting cavity. An adjusting component is fixedly disposed on the middle section. The adjusting component can drive the connecting rod pin to swing around the axis of the connecting section to adjust the closed height of the hot forging press.

[0005] Based on the above technical solution, preferably, it also includes an installation sleeve, which is fixedly disposed in the connecting hole, and the connecting segment is rotatably disposed in the installation sleeve. The axial length of the connecting segment is greater than the axial length of the eccentric portion, and the diameter is smaller than the diameter of the eccentric portion.

[0006] Based on the above technical solution, preferably, the end of the eccentric portion away from the middle section is provided with a clearance notch, the axial length of the clearance notch is less than the length of the eccentric portion, the end of the mounting sleeve extends inward to form an arc-shaped support portion, the arc-shaped support portion is located outside the clearance notch, and its circumferential angle is less than the circumferential angle of the clearance notch; the inner arc surface of the arc-shaped support portion is adapted to the outer circumferential surface contour of the connecting section corresponding to the clearance notch.

[0007] Based on the above technical solution, preferably, the eccentric direction of the eccentric part is horizontal and located on a predetermined side of the axis of the connecting segment.

[0008] Based on the above technical solution, preferably, the connecting rod has an installation channel in its axial direction, and the adjusting member passes through the installation channel and is fixedly connected to the middle section.

[0009] Based on the above technical solution, preferably, the top surface of the intermediate section is provided with an installation end face, and the installation end face has an installation hole perpendicular to the axis of the adjustment section, and the adjustment component is fixedly connected to the installation hole.

[0010] Based on the above technical solution, preferably, the lower end of the connecting rod has a connecting sleeve, which is rotatably sleeved on the outside of the eccentric portion via a sliding bearing.

[0011] Based on the above technical solution, preferably, the sliding bearing is fixedly installed inside the connecting sleeve and fitted onto the outer periphery of the eccentric part.

[0012] Based on the above technical solution, preferably, the bottom surface of the mounting cavity is provided with a clearance groove, the lower part of the connecting sleeve is accommodated in the clearance groove, and there is a gap between the outer peripheral wall of the connecting sleeve and the inner wall of the clearance groove.

[0013] Based on the above technical solution, preferably, the connecting rod pin has a through-hole ventilation channel along its axial direction, and the bottom surface of the mounting hole has a connecting hole connected to the ventilation channel. This ventilation channel also serves as a pressure fluid medium channel for disassembling and adjusting the component.

[0014] The present invention has the following advantages over the prior art: (1) This utility model designs a connecting pin structure consisting of "middle section-connecting section-eccentric part" and places it in the slider mounting cavity with three-point support of "connecting hole-support part". It successfully transforms the two-point support of a pin shaft under concentrated load into three-point support, thereby greatly enhancing the bending resistance of the connecting pin and improving the reliability of equipment operation. At the same time, it cleverly utilizes the principle of eccentric part to realize convenient and precise adjustment of the press's closed height while ensuring structural strength.

[0015] (2) By combining the avoidance notch and the arc-shaped support, the design contradiction between the support stiffness of the connecting section and the connection strength of the eccentric part within the strictly limited axial installation space is cleverly resolved. The avoidance notch creates conditions for achieving a balance of key performance parameters under spatial constraints, while the arc-shaped support ensures that the integrity and strength of the structure are not compromised under this optimized design. Together, they cleverly achieve a unity of support stiffness, connection strength, and adjustment function without increasing the overall size of the connecting pin or changing the basic structure of the slider. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the connecting rod and slider connection structure of the hot forging press disclosed in this utility model. Figure 2 This is an exploded view of the connecting rod and slider connection structure of the hot forging press disclosed in this utility model; Figure 3 This is a three-dimensional structural diagram of the connecting pin disclosed in this utility model; Figure 4 This is a three-dimensional structural diagram of the connecting rod and slider connection structure of the hot forging press disclosed in this utility model after removing the slider. Figure 5 This is a top view of the connecting rod and slider connection structure of the hot forging press disclosed in this utility model; Figure 6 for Figure 5 Planar sectional view at point AA; Figure label: 1. Connecting rod; 2. Slider; 3. Connecting rod pin; 31. Intermediate section; 32. Connecting section; 33. Eccentric part; 21. Mounting cavity; 22. Connecting hole; 211. Support part; 4. Adjusting component; 5. Mounting sleeve; 331. Clearance notch; 51. Arc-shaped support part; 11. Mounting channel; 311. Mounting end face; 312. Mounting hole; 12. Connecting sleeve; 6. Sliding bearing; 212. Clearance groove; 30. Ventilation channel; 3120. Connecting hole. Detailed Implementation

[0018] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions 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, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0021] In the description of the embodiments of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0024] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0025] like Figure 1 As shown, combined with Figure 2-6 This utility model discloses a connecting rod and slider connection structure for a hot forging press, including a connecting rod 1 and a slider 2, and also includes a stepped columnar connecting rod pin 3 connecting the connecting rod 1 and the slider 2.

[0026] The connecting rod pin 3 includes an intermediate section 31 and a connecting section 32 symmetrically connected to both ends of the intermediate section 31 along the axial direction. The intermediate section 31 and the connecting section 32 are coaxially arranged, and an eccentric part 33 is fixedly provided on the outer peripheral wall of the connecting section 32 near the intermediate section 31.

[0027] This example improves upon the traditional one-piece columnar connecting pin, transforming it from a single load-bearing component into a new structure consisting of "connecting section 32 - eccentric portion 33 - intermediate section 31 - eccentric portion 33 - connecting section 32". The two connecting sections 32 are coaxially aligned with the intermediate section 31, ensuring a unified rotational reference. The axis of the eccentric portion 33 has a defined eccentricity relative to the axes of the connecting sections 32 and the intermediate section 31.

[0028] This design serves two purposes. First, it distributes the force, originally concentrated on a single pin, to three support points jointly borne by the two connecting sections 32 and the intermediate section 31, greatly improving bending stiffness. Second, the eccentric portion 33 lays the structural foundation for subsequent adjustment of the closed height.

[0029] The slider 2 has a mounting cavity 21 with a top opening. The connecting pin 3 is horizontally set in the mounting cavity 21. The slider 2 has connecting holes 22 on both sides that communicate with the mounting cavity 21. The connecting section 32 is rotatably connected to the connecting hole 22. The bottom surface of the mounting cavity 21 has a support part 211 that is adapted to the surface of the middle section 31.

[0030] Specifically, slider 2 provides the overall installation and constraint environment. The two connecting sections 32 provide rotational support for the connecting rod pin 3 on both sides through connecting holes 22. The support portion 211 at the bottom of the mounting cavity 21 supports the middle section 31 from below, forming a key intermediate support point.

[0031] The system utilizes a stable three-point support (two connecting holes 22 + one support 211). The key lies in the presence of the support 211, which directly resists the enormous load acting on the middle of the connecting rod pin 3 during forging, effectively preventing the connecting rod pin 3 from bending and deforming in the vertical plane, thus fundamentally solving the bending problem mentioned in the prior art.

[0032] The lower end of the connecting rod 1 is fitted onto the eccentric part 33, and the other end extends out of the outer side of the mounting cavity 21. An adjusting component 4 is fixedly installed on the middle section 31. Rotating the adjusting component 4 can drive the connecting rod pin 3 to swing around the axis of the connecting section 32 to adjust the closed height of the hot forging press.

[0033] Specifically, connecting rod 1 transmits power to the eccentric part 33. When the closing height of the press needs to be adjusted, the adjusting component 4 is driven by a special device. The adjusting component 4 drives the entire connecting rod pin 3 to rotate and swing around the common axis of the two connecting sections 32. Due to the presence of the eccentric part 33, when it rotates with the connecting rod pin 3, the position of its outer circular surface (i.e., the mounting point of connecting rod 1) relative to the axis of connecting section 32 will change, thereby raising or lowering the mounting height of one end of connecting rod 1, and finally achieving precise adjustment of the closing height of slider 2.

[0034] This utility model designs a connecting pin 3 structure consisting of "intermediate section 31, connecting section 32, and eccentric part 33" and places it in the mounting cavity 21 of the slider 2 with three-point support of "connecting hole 22 and support part 211". This successfully transforms the concentrated load borne by a single pin into a distributed load shared by three support points, thereby greatly enhancing the bending resistance of the connecting pin 3 and improving the reliability of equipment operation. At the same time, by cleverly utilizing the principle of eccentric part 33, the closed height of the press is conveniently and precisely adjusted while ensuring structural strength.

[0035] In some embodiments, the connection structure between the connecting rod 1 and the slider 2 also includes a mounting sleeve 5, which is fixedly disposed within the connecting hole 22, and the connecting section 32 is rotatably disposed within the mounting sleeve 5. The mounting sleeve 5 acts as a replaceable bearing seat or bushing. Since the slider 2 is typically a large casting, its machining is complex and costly. By changing the direct rotational friction pair from "connecting section 32-connecting hole 22" to "connecting section 32-mounting sleeve 5," wear is concentrated on the mounting sleeve 5. When the mounting sleeve 5 wears out, only the low-cost mounting sleeve 5 needs to be replaced or repaired, without needing to repair or replace the entire slider 2, greatly reducing maintenance costs and time.

[0036] The axial length of the connecting section 32 is greater than that of the eccentric portion 33. This design ensures that the connecting section 32 has sufficient fit and support length within the mounting sleeve 5, thereby ensuring the stability of the connecting rod pin 3 during rotation and structurally strengthening the rigidity of the two support points in the three-point support. The diameter of the connecting section 32 is smaller than that of the eccentric portion 33. When the connecting rod pin 3 is installed into the slider 2, the diameter of the eccentric portion 33 is larger, preventing it from fitting into the mounting sleeve 5 designed for the connecting section 32.

[0037] It is worth noting that the mounting sleeve 5 disclosed in this utility model is a bushing with a flange. The axial length of the bushing is matched with the axial length of the connecting hole 22. Since the depth of the connecting hole 22 is limited, if the connecting section 32 and the shorter mounting sleeve 5 are rotatably connected, this will result in insufficient support rigidity of the connecting section 32 at the connecting hole 22.

[0038] Under the premise that the axial space of the connecting hole 22 of the slider 2 is strictly limited, if the connecting section 32 is to have sufficient length to maintain its support rigidity when it is in contact with the mounting sleeve 5, the available axial space of the eccentric part 33 will often be directly squeezed. If the length of the eccentric part 33 is insufficient, it will weaken its connection strength with the connecting rod 1.

[0039] Therefore, in this embodiment, a clearance notch 331 is provided at the end of the eccentric portion 33 furthest from the intermediate section 31. The axial length of the clearance notch 331 is less than the length of the eccentric portion 33. The core function of the clearance notch 331 is not simply to provide clearance space, but to optimize the allocation of critical dimensions. Under the constraint of the limited total space of the connecting hole 22, this notch allows more of the valuable axial space to be allocated to the connecting section 32 without increasing the total length of the connecting pin 3, so that it has sufficient mating length with the mounting sleeve 5, thereby meeting the requirements of support stiffness.

[0040] Without this notch, the axial length of the eccentric portion 33 would have to be sacrificed to increase the support length of the connecting section 32. However, if the eccentric portion 33 is too short, its contact area with the connecting rod 1 would be reduced, affecting the connection strength. The notch cleverly avoids this trade-off, allowing the eccentric portion 33 to maintain a sufficient effective length in the axial direction to ensure connection strength.

[0041] However, creating the clearance notch 331 leaves a gap in the area where the connecting section 32 should be supported, which may weaken the overall structure. To address this, this design further incorporates an arc-shaped support 51 extending inward from the end of the mounting sleeve 5. This precisely compensates for and strengthens the support gap created by the notch. This stationary arc-shaped support 51 has an inner arc surface that precisely matches the outer circumferential surface of the connecting section 32 corresponding to the clearance notch 331, acting like a built-in local bushing, effectively filling the support gap and restoring the radial support continuity of the connecting section 32 at that location. Particularly noteworthy is that the circumferential angle of the arc-shaped support 51 is limited to be smaller than that of the clearance notch 331. This detail ensures that during the rotational adjustment of the connecting pin 3, the support always maintains stable surface contact with the outer cylindrical surface of the connecting section 32 to provide support, without interfering with the edge of the notch, thus guaranteeing both smooth adjustment and reliable support.

[0042] It is worth noting that the bottom surface of the mounting cavity 21 is provided with an arc-shaped bearing surface that matches the arc-shaped support 51. At this time, the connecting section 32 corresponding to the end face of the clearance notch 331 is inserted into the inner side of the mounting sleeve 5 and is supported by the end face of the eccentric part 33 and the inner end face of the mounting sleeve 5 to restrict the axial movement of the connecting rod pin 3. The outer peripheral surface of the connecting section 32 corresponding to the clearance notch 331 contacts the arc-shaped support 51. The arc-shaped bearing surface of the bottom surface of the mounting cavity 21 supports the arc-shaped support 51, providing the connecting section 32 with high-strength support rigidity. This structure not only achieves stable installation of the connecting rod pin 3 on the slider 2, but also ensures that the clearance notch 331 will not collide with the arc-shaped support 51 when the connecting rod pin 3 rotates.

[0043] By combining the clearance notch 331 with the arc-shaped support 51, the design contradiction between the support stiffness of the connecting section 32 and the connection strength of the eccentric part 33 within the strictly limited axial installation space is cleverly resolved. The clearance notch 331 creates conditions for achieving a balance of key performance parameters under spatial constraints, while the arc-shaped support 51 ensures that the integrity and strength of the structure are not compromised under this optimized design. Together, they cleverly achieve a unity of support stiffness, connection strength, and adjustment function without increasing the overall size of the connecting pin 3 or changing the basic structure of the slider 2.

[0044] As one implementation, the eccentric part 33 is eccentric in a horizontal direction and is located on a predetermined side of the axis of the connecting segment 32.

[0045] Therefore, in the actual working state of the hot forging press, the slide block 2 mainly performs reciprocating motion in the vertical direction. Setting the adjustment direction in the vertical plane means that when the connecting rod pin 3 is rotated through the adjusting component 4, the mounting point of the connecting rod 1 carried on the eccentric part 33 will mainly be displaced in the vertical plane, which can be directly and efficiently converted into a vertical change in the height of the slide block 2, that is, to achieve precise adjustment of the closed height.

[0046] In the compact internal space of a press, the connecting rod 1, as a moving part, is often surrounded by other components, making it very difficult or even impossible to directly approach and operate the adjusting part 4 located in the mounting cavity 21 of the slider 2 from the outside.

[0047] Therefore, in this embodiment, an installation channel 11 is provided in the middle of the connecting rod 1 along its axial direction, and the adjusting member 4 passes through the installation channel 11 and is fixedly connected to the intermediate section 31. Thus, the installation channel 11 provides a convenient passage from the outside of the connecting rod 1 directly to the internal intermediate section 31, allowing operators to perform related operations without complex disassembly.

[0048] As one embodiment, the top surface of the intermediate section 31 is provided with a mounting end face 311, and the mounting end face 311 has a mounting hole 312 perpendicular to the axis of the intermediate section 31, and the adjusting member 4 is fixedly connected to the mounting hole 312.

[0049] The mounting end face 311 provides a stable and flat reference surface. This reference surface ensures that the mounting hole 312 can be precisely machined and perpendicular to the axis of the connecting rod pin 3. More importantly, when the adjusting member 4 is in contact with this end face, a large area of ​​stable contact can be formed, effectively avoiding stress concentration and providing reliable support for subsequent fastening. In this embodiment, the bottom of the adjusting member 4 has a positioning post for inserting into the mounting hole 312, ensuring the positional accuracy of the adjusting member 4 on the intermediate section 31. At the same time, the adjusting member 4 can be locked to the intermediate section 31 by bolts.

[0050] In this embodiment, the mounting hole 312 is perpendicular to the centerline of the middle section 31. This orientation means that after the adjusting member 4 is inserted into the mounting hole 312, the direction of the force it applies will be perpendicular to the rotation radius of the connecting rod pin 3. When the operator rotates the adjusting member 4 using a special device, the force will be converted into the most effective lever arm for driving the connecting rod pin 3 to rotate around its own axis, i.e., pure torque. This direct, non-eccentric torque transmission method maximizes the efficiency and precision of the adjustment action, ensuring that while applying a large sealing force to prevent loosening, the entire connecting rod pin 3 can be rotated easily and smoothly.

[0051] In some implementations, the lower end of the connecting rod 1 has a connecting sleeve 12, which is rotatably fitted onto the outside of the eccentric portion 33 via a sliding bearing 6. During actual installation, the entire connecting rod pin 3 is horizontally passed through the two connecting sleeves 12 at the lower end of the connecting rod 1, thereby forming a rotating pair between the connecting sleeves 12 and the eccentric portion 33.

[0052] In this embodiment, the diameter of the middle section 31 is smaller than the diameter of the eccentric portion 33, which facilitates the horizontal passage of the connecting pin 3 through the connecting sleeve 12.

[0053] As an implementation method, a sliding bearing 6 is fixedly installed in the inner hole of the connecting rod sleeve 12. This design can effectively meet the requirements of equipment power transmission and efficient closed height adjustment.

[0054] As an independent and simplified functional component, the sliding bearing 6 can be easily replaced by maintenance personnel when its working surface wears down due to long-term use, resulting in increased clearance. This not only significantly reduces maintenance costs and downtime but also makes preventative maintenance plans easier to implement.

[0055] As one embodiment, the bottom surface of the mounting cavity 21 is provided with a relief groove 212, the lower part of the connecting sleeve 12 is accommodated in the relief groove 212, and there is a gap between the outer peripheral wall of the connecting sleeve 12 and the inner wall of the relief groove 212.

[0056] The clearance fit between the clearance groove 212 and the connecting sleeve 12 solves the spatial interference problem caused by the introduction of the connecting sleeve 12 and ensures that the core force path is not disturbed. It allows the connecting sleeve 12 to be properly accommodated inside the slider 2, ensuring its free movement and avoiding any unnecessary force interaction between it and the slider 2 body.

[0057] As one embodiment, the connecting rod pin 3 has a through ventilation channel 30 along its axial direction, and the bottom surface of the mounting hole 312 has a connecting hole 3120 connected to the ventilation channel.

[0058] The purpose of the aforementioned venting channel 30 and connecting hole 3120 is to balance pressure. When the operator inserts the adjusting component 4 (such as a tightly fitting bolt) into the mounting hole 312, the air in the enclosed space at the bottom of the mounting hole 312 is compressed, forming high pressure. This air cushion effect generates resistance, making it difficult for the adjusting component 4 to be installed correctly, and may even cause the operator to misjudge the tightening torque, affecting the reliability of the connection. The presence of the venting channel 30 provides an escape path for the compressed air, allowing it to smoothly dissipate to the other end of the connecting rod pin 3 or into the atmosphere, thereby ensuring that the adjusting component 4 can be easily and accurately installed and reach the predetermined tightening state. This venting channel also serves as a pressure fluid medium channel for disassembling the adjusting component 4.

[0059] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A connecting structure of a connecting rod and a slide block of a hot forging press, comprising a connecting rod (1) and a slide block (2), characterized in that: It also includes a columnar connecting rod pin (3) that connects the connecting rod (1) and the slider (2); The connecting rod pin (3) includes an intermediate section (31) and a connecting section (32) symmetrically connected to both ends of the intermediate section (31) along the axial direction. The intermediate section (31) and the connecting section (32) are coaxially arranged, and an eccentric part (33) is fixedly provided between the connecting section (32) and the intermediate section (31). The slider (2) has a mounting cavity (21) with a top opening. The connecting rod pin (3) is horizontally set in the mounting cavity (21). The slider (2) has connecting holes (22) on both sides that communicate with the mounting cavity (21). The connecting section (32) is rotatably connected to the connecting hole (22). The bottom surface of the mounting cavity (21) has a support part (211) that matches the surface of the middle section (31). The lower end of the connecting rod (1) is mounted on the eccentric part (33), and the upper end extends out of the mounting cavity (21) and connects to the main shaft of the equipment. An adjusting component (4) is fixedly set on the middle section (31). The adjusting component (4) can drive the connecting rod pin (3) to swing around the axis of the connecting section (32) and drive the eccentric part (33) to adjust the closed height of the hot forging press.

2. The hot swage press link and slide connection of claim 1 wherein: It also includes an installation sleeve (5), which is fixedly installed in the connection hole (22). The connection segment (32) is rotatably installed in the installation sleeve (5). The diameter of the connection segment (32) is smaller than the diameter of the eccentric part (33), and the diameter of the connection hole (22) is larger than the diameter of the eccentric part (33) by a certain value to meet the installation requirements.

3. The hot swage press link and slide connection of claim 2 wherein: The eccentric portion (33) has a clearance notch (331) at one end away from the middle section (31). The axial length of the clearance notch (331) is less than the length of the eccentric portion (33). The end of the mounting sleeve (5) extends inward to form an arc-shaped support portion (51). The arc-shaped support portion (51) is located outside the clearance notch (331), and its circumferential angle is less than the circumferential angle of the clearance notch (331). The inner arc surface of the arc-shaped support portion (51) is adapted to the outer circumferential contour of the connecting section (32) corresponding to the clearance notch (331).

4. The hot forging press connecting rod and slide structure of claim 1 wherein: The eccentric part (33) is eccentric in the horizontal direction and is located on a predetermined side of the axis of the connecting section (32).

5. The connecting rod and slide block connection structure of the hot forging press as described in claim 1, characterized in that: The connecting rod (1) has an installation channel (11) in the middle along its axial direction, and the adjusting member (4) passes through the installation channel (11) and is fixedly connected to the middle section (31).

6. The hot- swage press link and slide connection of claim 5 wherein: The top surface of the intermediate section (31) is provided with an installation end face (311), and the installation end face (311) has an installation hole (312) perpendicular to the axis of the intermediate section (31). The adjusting member (4) is fixedly connected to the installation hole (312).

7. The hot-stamping press connecting rod and slide block connecting structure according to claim 5, characterized by: The lower end of the connecting rod (1) has a connecting sleeve (12), which is rotatably fitted onto the outside of the eccentric portion (33).

8. The hot die forging press connecting rod and slide structure of claim 7 wherein: The connecting sleeve (12) is internally fixedly installed with a sliding bearing (6), which is fitted around the outer periphery of the eccentric part (33).

9. The hot-stamping press connecting rod and slide block structure of claim 7, wherein: The bottom surface of the mounting cavity (21) is provided with a relief groove (212), the lower part of the connecting sleeve (12) is accommodated in the relief groove (212), and there is a gap between the outer peripheral wall of the connecting sleeve (12) and the inner wall of the relief groove (212).

10. The hot-stamping press connecting rod and slide block structure of claim 6, wherein: The connecting rod pin (3) has a through-hole (30) along its axial direction. The bottom surface of the mounting hole (312) has a connecting hole (3120) connected to the venting channel (30). The venting channel (30) also serves as a pressure fluid medium channel for disassembling the adjustment component (4).

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