Forging press and upper anvil connecting structure thereof

Abstract

The utility model provides a forging press and an upper anvil connecting structure thereof, an upper anvil is connected with a beam of the forging press through a clamping groove and a clamping tenon, a gap is reserved on one side of the clamping groove in the width direction after the clamping groove is matched with the clamping tenon, the gap is filled with a locking mechanism, the locking mechanism is provided with two supporting plates with the adjustable distance, and the supporting plates are connected with the upper anvil. The clamping grooves and the side walls of the clamping tenons can abut against each other. According to the upper anvil connecting structure of the forging press, the clamping grooves and the clamping tenons are matched with a specially-designed locking mechanism, the basic requirement for stably connecting the upper anvil is met, the simple connecting mode is achieved, and therefore the operation difficulty during anvil replacing is greatly reduced, the anvil replacing time is shortened, and the operation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of forging press technology, and particularly relates to a forging press and an anvil connecting structure thereof. BACKGROUND

[0002] In the forging and pressing industry, different specifications of anvils are often required to be replaced according to different workpiece shapes, sizes and processing technology requirements. The connecting structure between the anvil and the movable cross beam of the common forging press is relatively complex, resulting in cumbersome anvil replacement work. Usually, the anvil is first lifted by a large lifting device, and then the fasteners such as bolts are disassembled manually. This disassembly process is very time-consuming and labor-intensive, requiring a large amount of labor time, which affects the forging and pressing production efficiency and continuity. SUMMARY

[0003] In view of the deficiencies in the prior art, the utility model provides a forging press and an anvil connecting structure thereof to solve the problem of quick replacement of the anvil of the forging press.

[0004] The utility model achieves the above technical purpose through the following technical means.

[0005] An anvil connecting structure of a forging press, comprising:

[0006] A clamping groove and a clamping tenon are matched and have a gap on one side in the width direction of the clamping groove;

[0007] A locking mechanism is used to fill the gap and is provided with two spacing-adjustable supporting plates capable of abutting against the side walls of the clamping groove and the clamping tenon, respectively.

[0008] Further, the gap is in the shape of a square hole.

[0009] Further, the cross section of the clamping groove is in the shape of a right-angled trapezoid, which is wider inside and narrower outside.

[0010] Further, in the locking mechanism, two supports are arranged between the two supporting plates, and the two supports are arranged along the length direction of the supporting plates and are connected to the two supporting plates on the two sides through connecting rods, respectively; a driving rod is arranged to adjust the distance between the two supports, and the two supporting plates are expanded or folded by the connecting rods.

[0011] Further, a threaded section is arranged on the driving rod, a threaded sleeve is arranged on the inner side of one of the two supports, and the threaded section and the threaded sleeve form a screw rod transmission cooperation, and the inner side of the other support is rotationally connected to the driving rod through a light hole or a bearing.

[0012] Further, two threaded sections are arranged on the driving rod, the rotation directions of the two threaded sections are opposite, threaded sleeves are arranged on the inner sides of the two supports, and the two threaded sections and the threaded sleeves form screw rod transmission cooperation, respectively.

[0013] Further, a crank handle is arranged at one end of the driving rod.

[0014] Further, a plurality of springs are symmetrically arranged between the two support plates along the length direction of the support plates.

[0015] Further, the thread section adopts 33° trapezoidal thread.

[0016] A forging press, the upper anvil and the connecting seat are connected by the connecting structure.

[0017] The beneficial effects of the present application are as follows:

[0018] (1) The forging press and the upper anvil connecting structure provided by the present application have the following advantages: the clamping groove, the clamping tenon and the specially designed locking mechanism are matched, the basic requirement of stably connecting the upper anvil is met, the connecting mode is relatively simple, the operation difficulty during the replacement of the upper anvil is greatly reduced, the replacement time is shortened, and the operation efficiency is improved.

[0019] (2) In the locking mechanism, the expansion or folding of the support plates is realized based on the cooperation of the screw rod transmission structure and the connecting rod, so that the self-locking characteristic of the screw rod transmission structure is utilized to lock the two support plates at a specific opening and closing position, and the firmness of the entire connecting structure is ensured.

[0020] (3) The spring is added between the two support plates to prevent the deflection of the support plates, and the spring plays a role in shock absorption during the operation of the forging press, protects the internal driving rod and other transmission elements, and provides additional locking force when the thread is heated and expanded to prevent the loosening of the thread.

[0021] (4) The trapezoidal thread is adopted on the driving rod, the fracture of the driving rod is not prone to occur at high temperature, there is a certain space between the thread pairs to accommodate the deformation when the thread is heated and expanded, and the requirement of the high-temperature working environment of the forging press can be met. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 Fig. 1 is a schematic view of the upper anvil connecting structure of the forging press of the present application;

[0023] Figure 2 Fig. 3 is a structural view of the locking mechanism in the present application;

[0024] Figure 3 Fig. 4(a) is a schematic view of the activity of the locking mechanism in Example 1;

[0025] Fig. 4(b) is a schematic view of the activity of the locking mechanism in Example 2.

[0026] Fig. 4(b) is a schematic view of the activity of the locking mechanism in Example 2.

[0027] Reference signs:

[0028] 11 - locking mechanism; 12 - upper anvil; 13 - cross beam; 1 - support plate;

[0029] 2-spring; 3-first support; 4-connecting rod; 5-second support;

[0030] 6-driving rod; 7-crank handle. DETAILED DESCRIPTION

[0031] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0032] Example 1

[0033] like Figure 1 As shown, the upper anvil 12 is connected to the lower connecting seat of the forging machine crossbeam 13 by a slot and a tenon. A slot is provided on the lower connecting seat of the crossbeam 13, and the cross section of the slot (along the sliding direction) is a right-angled trapezoid, wide inside and narrow outside. A tenon with matching external dimensions is provided on the top of the upper anvil 12. When the tenon and the slot are matched, one side is connected tightly in the form of a half dovetail groove in the width direction of the slot, and a square hole-shaped gap is left on the other side. A locking mechanism 11 is inserted into the square hole-shaped gap.

[0034] like Figure 2 As shown, the locking mechanism 11 includes two parallel and opposite support plates 1, with an adjustable spacing between the two support plates 1. After the locking mechanism 11 is inserted, the support plates 1 on both sides are expanded so that they abut the crossbeam 13 connecting seat and the upper anvil 12 in the horizontal direction (the width of the slot), thereby filling the horizontal gap left by the engagement of the slot and the tenon, and completing the connection and fixation of the upper anvil 12.

[0035] In the above-mentioned locking mechanism 11, the adjustment mechanism for adjusting the distance between the two support plates 1 includes a first support 3, a second support 5, and a driving rod 6. The driving rod 6 is located between the two support plates 1, and its axis is parallel to the length direction of the support plates 1. A crank 7 is provided at the tail of the driving rod 6. The first support 3 and the second support 5 are sleeved on the driving rod 6, and the distance between the two is adjustable on the driving rod 6. The first support 3 is connected to the support plates 1 on both sides through the connecting rod 4, and the second support 5 is also symmetrically connected to the support plates 1 on both sides through the connecting rod 4. Therefore, as shown in Figure 4 (a) or Figure 4 (b), when the distance between the first support 3 and the second support 5 changes, the two support plates 1 will be driven to expand or close under the drive of multiple connecting rods 4.

[0036] Specifically, combined Figure 3As shown, the drive rod 6 has a threaded section, and the first support 3 has a threaded sleeve inside. The first support 3 is connected to the threaded section, forming a screw drive mechanism. When the drive rod 6 rotates, the first support 3 moves horizontally along the drive rod 6. The second support 5 has a plain sleeve or a bearing inside, and only rotates with the drive rod 6, without axial movement. The corresponding active state is shown in Figure 4(a). Rotating the drive rod 6 moves the first support 3 toward or away from the second support 5.

[0037] The threads on the drive rod 6 are 33° trapezoidal threads. Trapezoidal threads have high root strength and are less susceptible to fracture at high temperatures. Furthermore, the clearance design of the trapezoidal threads allows for sufficient space between the thread pairs to accommodate deformation during thermal expansion, reducing damage caused by thermal stress.

[0038] Referring to Figure 4(a), the trapezoidal structure formed by the four hinge points between the same side support plate 1 and the two supports (marked by light-colored lines in the figure) may cause the support plate 1 to deflect due to the existence of quadrilateral instability. Figure 2 As shown, four springs 2 are evenly distributed at the four corners between the two support plates 1 to ensure force balance between the two support plates 1 and prevent deflection of the support plates 1. The springs 2 also act as a vibration dampener, protecting the inner spacing adjustment mechanism; and provide additional locking force when the threads expand due to heat, preventing them from loosening.

[0039] Example 2

[0040] As shown in Figure 4(b), based on Example 1, the drive rod 6 is equipped with two threaded segments with opposite rotation directions. Correspondingly, threaded sleeves are provided on the inner sides of the first and second supports 3 and 5, respectively acting as screw nuts to mate with the two threaded segments, forming two opposing screw drive mechanisms. Rotation of the drive rod 6 causes the first and second supports 3 and 5 to translate synchronously toward or away from each other.

[0041] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0042] The present invention is not limited to the above-mentioned embodiments. Any obvious improvement, replacement or deformation that can be made by those skilled in the art without departing from the essential content of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A forging machine upper anvil connection structure, characterized by: include: The slot and the tenon, after being matched, leave a gap on one side in the width direction of the slot; The locking mechanism (11) is used to fill the gap and is provided with two support plates (1) with adjustable spacing, which can respectively abut against the side walls of the card slot and the card tenon.

2. The forging machine upper anvil connection structure according to claim 1, characterized in that: The gap is in the shape of a square hole.

3. The forging machine upper anvil connection structure according to claim 1, characterized in that: The cross section of the slot is a right-angled trapezoid, which is wide inside and narrow outside.

4. The forging machine upper anvil connection structure according to claim 1, characterized in that: In the locking mechanism (11), two supports are provided between the two support plates (1), and the two supports are arranged along the length direction of the support plates (1), and are respectively connected to the support plates (1) on both sides through a connecting rod (4); a driving rod (6) is provided to adjust the distance between the two supports, and the connecting rod (4) drives the two support plates (1) to expand or close.

5. The forging machine upper anvil connection structure according to claim 4, characterized in that: The driving rod (6) is provided with a threaded section, and a threaded sleeve is provided on the inner side of one of the two supports to form a screw transmission match with the threaded section, and the inner side of the other support is rotationally matched with the driving rod (6) through a light hole or a bearing.

6. The forging machine upper anvil connection structure according to claim 4, characterized in that: The driving rod (6) is provided with two threaded sections, the two threaded sections rotate in opposite directions, and the inner sides of the two supports are provided with threaded sleeves, which respectively form a screw transmission cooperation with the two threaded sections.

7. The forging machine upper anvil connection structure according to claim 5 or 6, characterized in that: One end of the driving rod (6) is provided with a crank (7).

8. The forging machine upper anvil connection structure according to claim 4, characterized in that: Between the two support plates (1), a plurality of springs (2) are symmetrically arranged at the front and rear ends along the length direction of the support plates (1).

9. The forging machine upper anvil connection structure according to claim 5 or 6, characterized in that: The thread section adopts a 33° trapezoidal thread.

10. A forging machine, characterized in that: The upper anvil (12) and the connecting seat are connected by using the connecting structure according to any one of claims 1 to 9.

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