Integral front arm of spraying structure

Abstract

The utility model discloses an integral front arm of a spraying structure, relates to the technical field of forging dies, and is used for solving the problems that the spraying precision of the forging dies is lower, and the high-frequency spraying universality is poorer. According to the spraying structure of the forging die, the rigidity and the strength of the spraying front arm are improved mainly through the arrangement of the front arm suspension, the connecting bearing frame and the whole spraying installation base, the interchangeability of the spraying structure of the forging die is improved, the installation and maintenance convenience of the spraying structure of the forging die is improved, and the service life of the spraying structure is prolonged. By arranging the reinforcing ribs, the front arm suspension and the first groove body, the possibility of suspension stress fracture and bending is reduced, and the spraying height fluctuation is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of forging dies, in particular to an integral forearm with a spray structure. Background Art

[0002] The temperature of the die and forging is an important parameter of the hot forging process. It is controlled by the lubrication and cooling system and has a significant impact on the life of the die and the quality of the forging. During the hot forging process, the temperature of the forging will increase with the extension of continuous use time, which is one of the important factors affecting the life of the forging die. In addition, excessive temperature rise will also affect the accuracy and comprehensive mechanical properties of the forging. The temperature field of each part of the die surface during the hot forging process is not uniform. The spray lubrication link is an important part of the use and maintenance to extend the service life of the forging die.

[0003] In the existing spray structure of the forging die, the spray structure is installed on a cantilever with a fixed stroke and range. The installation arm is adjusted to extend and retract at the forging die of the press by manual or automatic control, so as to drive the spray structure to use special spray media such as release agent and water to control the temperature of the forging or die area or assist in forging forming; in the existing spray structure, the spraying of workspaces of different sizes is mainly adapted by adjusting the specifications and in-and-out stroke range of the spray arm; in the existing spray structure, cracking and damage are usually easy to occur at the splicing position, resulting in unstable spraying, and maintenance is more troublesome. Due to the variable sizes and specifications of various forging dies, most spray structures are dedicated and have poor universal performance, making it difficult to meet the needs of high-intensity and high-frequency automated spraying.

[0004] In the prior art, for example, Japanese invention patent JP7341795B2 discloses a release agent spraying device, in which a motor drives a reciprocating connecting rod mechanism to drive a spray arm and a spray device to reciprocate and extend in the forging die area for spraying, wherein the spray arm is driven by a hinge and a connecting rod bracket. The coordination requirements between the spray arm and the drive structure of the invention patent may be high, and the spray drive transmission may damage the spray arm, resulting in a deviation in the spray position. The spray arm may have low mechanical strength and unstable spraying during high-frequency extension and retraction.

[0005] For example, Korean invention patent KR102245739B1 discloses a shock-absorbing component made of elastic material. In this invention patent, two sections of mutually connected buffer devices are provided to absorb the axial deformation of the transverse axis respectively, and the axial deformation displacement is supplemented under the elastic action of the buffer structure, so that when the transverse axis is hit or bent to produce axial deformation, the impact is buffered, and the deformation displacement is restored under the elastic force; in this technical solution, there may be a situation where the buffer positions at both ends of the transverse axis are difficult to recover when they are subjected to different destructive torques, thereby making the axial deformation recovery function invalid, and torsional damage may easily occur, resulting in an increase in the fitting clearance and making the fitting state unstable. Utility Model Content

[0006] The utility model aims to provide an integral forearm of a spray structure to solve the problems of low spray accuracy and poor versatility of high-frequency spray of forging dies.

[0007] In order to solve the above technical problems, the utility model specifically provides the following technical solutions:

[0008] A spray structure integral forearm comprises a connecting support frame and two oppositely arranged forearm suspensions, wherein the swing ends of the forearm suspensions are provided with spray mounting seats, and the connecting support frame, the forearm suspension and the spray mounting seats are an integrally formed rigid structure.

[0009] Preferably, a connecting support hole is provided in the connecting support frame, a spray mounting seat is provided at the swing end of the forearm suspension, and a spray mounting cavity is provided in the spray mounting seat.

[0010] Preferably, a gap is left between the outer end surface of the spray installation cavity and the outer end surface of the forearm suspension.

[0011] Preferably, a first groove body is provided on the side surface of the forearm suspension, the orientation of the first groove body is in the direction of the centrifugal force of the swinging motion of the forearm suspension, and the contours of both ends of the first groove body are arc-shaped.

[0012] Preferably, a reinforcing rib is provided in the first groove body, and the direction of the reinforcing rib is perpendicular to the direction of the centrifugal force of the forearm suspension swinging.

[0013] Preferably, a telescopic connecting frame is fixedly connected between the two forearm suspensions, and a second slot body is provided in the telescopic connecting frame.

[0014] Preferably, a first telescopic seat and a second telescopic seat are fixedly connected to the telescopic connecting frame, and the first telescopic seat and the second telescopic seat are respectively located on the side surfaces of the telescopic connecting frame in the forward and backward directions of the swing of the forearm suspension around the connecting support frame.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] By setting the forearm suspension, the connecting support frame and the spray mounting seat as a whole, the rigidity and strength of the spray forearm are improved, the interchangeability of the forging die spray structure is improved, and the installation and maintenance convenience and service life of the forging die spray structure are improved;

[0017] By setting the spray mounting seat, connecting support holes and spray mounting cavity, the spray accuracy and spray installation stability are improved, the adaptability and reliability of the spray forearm automation and high-frequency spraying are improved, the spray accuracy and spray efficiency of the forging die are improved, and the influence of the swing inertia of the spray structure on the spray accuracy is reduced;

[0018] By providing the forearm suspension and the first trough body, the fluctuation of the mechanical properties of the spray forearm as a whole that is interchangeable is reduced;

[0019] By providing reinforcing ribs, a forearm suspension and a first trough body, the possibility of suspension stress fracture and bending is reduced, and the fluctuation of the spray height is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0021] Figure 1 It is a three-dimensional structural schematic diagram of an integral forearm of a spray structure of the utility model;

[0022] Figure 2 for Figure 1 A schematic diagram of the main view;

[0023] Figure 3 yes Figure 2 A side view schematic diagram of

[0024] Figure 4 yes Figure 3 Schematic cross-sectional view at AA in the middle;

[0025] Figure 5 It is a schematic diagram of the connection relationship between the forearm suspension and the buffer assembly;

[0026] Figure 6 yes Figure 5 A partial enlarged schematic diagram of point B in the middle;

[0027] Figure 7 yes Figure 5 Schematic diagram of the three-dimensional structure of the buffer component.

[0028] Figure numbers: forearm suspension 11; telescopic connecting frame 12; connecting support frame 13; reinforcing rib 14; first trough body 15; first telescopic seat 16; second telescopic seat 17; spray mounting seat 18; spray mounting cavity 19; connecting support hole 20; buffer assembly 30; buffer connecting sleeve 31; second elastic member 32; transfer balance seat 33; centrifugal storage cavity 34; first elastic member 35; spray power tube 40, second trough body 41. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0030] The following first describes the concepts involved in the present application in conjunction with the accompanying drawings. It should be noted that the following description of each concept is only to make the content of the present application easier to understand, and does not limit the scope of protection of the present application; at the same time, the embodiments and features in the embodiments of the present application can be combined with each other in the absence of conflict. The present application will be described in detail with reference to the accompanying drawings and in conjunction with the embodiments.

[0031] Embodiment 1

[0032] See attached Figure 1 To Attachment Figure 4 As shown, the utility model provides an integral forearm of a spray structure, comprising a connecting support frame 13 and two forearm suspensions 11 arranged opposite to each other, a spray mounting seat 18 is provided at the swing end of the forearm suspension 11, and the connecting support frame 13, the forearm suspension 11 and the spray mounting seat 18 are an integrally formed rigid structure;

[0033] The connecting support frame 13, the forearm suspension 11 and the spray mounting seat 18 are integrally installed on the press through the connecting support hole 20. The spray forearm of the connecting support frame 13, the forearm suspension 11 and the spray mounting seat 18 can be rotated and swung at the installation position of the connecting support frame 13 on the press through the connecting support hole 20. The spray mounting seat 18 is installed with a spray power pipe 40 for spraying a release agent or the like for controlling the temperature of the forging die or controlling the temperature of the forging die through the spray mounting cavity 19. When the integral forearm rotates and swings around the connecting support hole 20, the spray power pipe 40 installed in the spray mounting seat 18 is driven to forge the die in the press. The mold can be telescoped in and out for spraying. The forearm suspension 11, the connecting support frame 13 and the spray mounting seat 18 are integrally formed into an integral rigid structure through casting or other one-piece molding, such as 3D printing, and then the integral structure is machined according to the spray specifications and installation dimensions to obtain the connecting support frame 13 and the spray mounting seat 18; the rigidity and strength of the spray forearm are improved, the interchangeability of the forging die spray structure is improved, the installation and maintenance convenience and service life of the forging die spray structure are improved, and the intensity and frequency of automatic use of the forging die spray are improved.

[0034] A connection support hole 20 is provided in the connection support frame 13, a spray mounting seat 18 is provided at the swing end of the forearm suspension 11, and a spray mounting cavity 19 is provided in the spray mounting seat 18;

[0035] A spray mounting cavity 19 is opened on the spray mounting seat 18 to keep the axis parallel to the connecting support hole 20 opened in the connecting support frame 13, which can unify the machining reference of the integrated rigid structure formed by the forearm suspension 11, the connecting support frame 13 and the spray mounting seat 18, improve the overall dimensional parameters and spray installation accuracy of the integrated spray forearm, facilitate the disassembly, assembly and replacement of spray structures of various specifications, increase the types of presses used for installation and configuration, and improve the overall interchangeability and use range of the spray forearm.

[0036] A gap is left between the outer end surface of the spray installation cavity 19 and the outer end surface of the forearm suspension 11;

[0037] It is convenient to form an installation reference between the spray installation cavity 19 and the forearm suspension 11, improve the assembly accuracy of the spray accessories in the axial direction of the forearm suspension 11, and improve the compactness and stability of the spray structure.

[0038] A first slot body 15 is provided on the side of the forearm suspension 11. The first slot body 15 faces in the centrifugal force direction of the swinging motion of the forearm suspension 11. Both ends of the first slot body 15 have arc-shaped contours.

[0039] The first trough body 15 can be formed while the forearm suspension 11 is being formed, thereby reducing the molding process steps, improving the uniformity of quality control of the first trough body 15 and the forearm suspension 11, reducing the fluctuation of the mechanical properties of the overall interchangeable use of the spray forearm, and improving the automation, high-frequency spray control stability and spray effect.

[0040] A reinforcing rib 14 is provided in the first groove body 15, and the reinforcing rib 14 is oriented perpendicular to the centrifugal force direction of the forearm suspension 11;

[0041] Arranging the number of reinforcing ribs 14 according to the suspension length of the forearm suspension 11 can disperse the suspension stress of the forearm suspension 11, improve the stability and supporting strength of the spray structure, reduce the possibility of suspension stress fracture and bending, reduce the fluctuation of the spray height, and improve the spray accuracy.

[0042] A telescopic connecting frame 12 is fixedly connected between the two forearm suspensions 11, and a second slot 41 is provided in the telescopic connecting frame 12;

[0043] The telescopic connecting frame 12 is fixedly connected with a first telescopic seat 16 and a second telescopic seat 17. A transfer shaft is arranged in the connecting support hole 20 to mount the spray forearm as a whole at a designated position of the press. The mounting bracket of the atomizing spray nozzles of the release agent and the coolant is fixedly mounted on the spray forearm through the spray mounting cavity 19.

[0044] The first telescopic seat 16 is installed with a travel limit control structure that cooperates with the press, for example, a cam and a camshaft are installed on the press and the first telescopic seat 16 respectively, and when the slide block of the press moves downward, the spray forearm swings backward as a whole;

[0045] The second telescopic seat 17 is connected to the active stroke control structure, for example, the piston rod that actively controls the spray forearm to swing as a whole into the forging die space, and the piston rod pushes the spray forearm as a whole to send it into the spray working area; the spray installation cavity 19 and the connecting support hole 20 are machined on the integral spray forearm. Since the spray forearm is an integrated structure, the precision of the processing reference of the spray installation cavity 19 and the connecting support hole 20 is relatively high, which can improve the installation precision of the spray forearm on the press and the displacement precision of entering and exiting the spray working area, improve the spray precision and spray installation stability, improve the adaptability and reliability of the spray forearm to automatic and high-frequency spraying, and improve the spray precision and spray efficiency of the forging die;

[0046] In addition, the orientation of the second trough body 41 is the same as the direction of the centrifugal force of the forearm suspension 11. The second trough body 41 can reduce the weight of the telescopic connecting frame 12, and at the same time can reduce the increase in the swing inertia force of the forearm suspension 11 caused by the telescopic connecting frame 12, thereby reducing the impact of the spray telescopic movement in and out of the forging die spray area on the swing stability.

[0047] The telescopic connecting frame 12 is fixedly connected with a first telescopic seat 16 and a second telescopic seat 17. The first telescopic seat 16 and the second telescopic seat 17 are respectively located on the side of the telescopic connecting frame 12 in the forward and backward direction of the swing of the forearm suspension 11 around the connecting support frame 13;

[0048] By arranging the first trough body 15 on the forearm suspension 11 and adopting a frame structure with weight-reducing through holes in the telescopic connecting frame 12, the weight of the integral spray forearm and the cost of molding materials can be reduced. At the same time, by providing the reinforcing ribs 14, the structural stability and supporting strength between the swing end and the rotating end of the forearm suspension 11 can be ensured, thereby improving the economy of the forging die spray structure and reducing the influence of the swing inertia of the swinging motion of the spray structure in and out of the spray working area on the spray accuracy, thereby further improving the use efficiency of the automatic high-frequency spraying of the spray structure.

[0049] Embodiment 2

[0050] See attached Figure 5 To Attachment Figure 7As shown, a buffer assembly 30 is provided at the swing end of the forearm suspension 11, and the buffer assembly 30 includes a first elastic member 35, and the first elastic member 35 is fixedly connected between the two first trough bodies 15; the two ends of the first elastic member 35 are respectively fixedly connected to the spray mounting seats 18 on both sides thereof, so as to buffer and absorb the bending and torsional moment between the two forearm suspensions 11 rigidly connected to the spray mounting seats 18, and restore the bending and torsional elastic deformation of the spray forearm under the elastic effect of the first elastic member 35 itself, thereby converging the elastic deformation of the spray structure, which can improve the stability of the spray installation accuracy, increase the number of cycles of the spray structure, and improve the spray accuracy and service life of the forging die;

[0051] In addition, the first elastic member 35 is located at the position of the spray mounting seat 18 at the swing end of the forearm suspension 11, and can restore the elastic deformation of the maximum bending and torsion of the swing end of the forearm suspension 11 of the spray forearm. According to the law of lever, the elastic expansion and contraction force of the first elastic member 35 itself buffers and absorbs the elastic deformation between the two forearm suspensions 11 to achieve the best effect at the swing end, and can adapt to the installation of sprays at different radii, thereby improving the spray working area and spray accuracy of the forging mold, and can adapt to the spraying work of forging molds of various shapes and specifications, thereby improving the demolding effect and temperature control effect of the forging mold, thereby improving the processing accuracy of the forging mold during its service life.

[0052] See attached Figure 5 To Attachment Figure 7 As shown, a transmission balance seat 33 is fixedly connected inside the first elastic member 35, a centrifugal receiving chamber 34 is provided inside the transmission balance seat 33, and a spray power pipe 40 is located inside the centrifugal receiving chamber 34;

[0053] By dividing the first elastic member 35 into two sections through the transfer balance seat 33, it is possible to prevent the first elastic member 35 from accumulating too much elastic force in transmitting and restoring the elastic deformation, reduce the possibility of local plastic deformation of the first elastic member 35 damaging the spray, and improve the balancing effect of the bending and torsional elastic deformation convergence. At the same time, it can accommodate spray power tubes 40 of various sizes and specifications, protect the surface of the spray power tubes 40, and improve the overall safety and service life of the spray structure.

[0054] See attached Figure 5 To Attachment Figure 7 As shown, a buffer connection sleeve 31 is provided in the centrifugal storage chamber 34, a second elastic member 32 is fixedly connected between the buffer connection sleeve 31 and the transfer balance seat 33, and the buffer connection sleeve 31 is made of a split structure;

[0055] Two buffer connection sleeves 31 are fixedly installed on the circumferential side of the spray power tube 40 through threaded connection, and the spray reaction force or other vibration impact on the spray power tube 40 is converted into static friction force through the buffer connection sleeve 31 and transmitted to the second elastic member 32. Under the elastic force of the second elastic member 32 itself, the circumferential rotation and radial sliding of the spray power tube 40 in the spray installation cavity 19 can be always limited by the static friction force between the buffer connection sleeve 31 and the spray power tube 40. At the same time, under the elastic force of the second elastic member 32 itself, the fitting clearance of the spray power tube 40 installed in the spray installation cavity 19 can be maintained within a stable range, thereby reducing the possibility of sudden changes in the fitting clearance caused by high-frequency use of the spray swing, and further reducing the influence of the sudden change in the fitting clearance on the spray accuracy;

[0056] The second elastic member 32 cooperates with the buffer connection sleeve 31 to eliminate the sudden change of the installation matching clearance of the spray power pipe 40. The elastic force is transmitted to the first elastic member 35 through the transmission balance seat 33, which can absorb part of the elastic force received by the second elastic member 32 and improve the recovery speed of the elastic deformation generated by eliminating the spray matching clearance.

[0057] In addition, the centrifugal storage chamber 34 and the buffer connecting sleeve 31 store a part of the spray power area of ​​the limiting spray power tube 40, and under the action of the second elastic member 32 and the buffer connecting sleeve 31 being elastically connected to the first elastic member 35, a part of the high-frequency swinging centrifugal force entering and exiting the forging die area is continuously offset, which can prevent the spray structure from directly detaching from the spray forearm when the installation is damaged, thereby improving the safety of the forging die spraying operation, improving the utilization efficiency of the high-frequency and high-speed spraying of the forging die, and improving the utilization efficiency of the forging die.

[0058] Embodiment 3

[0059] See attached Figure 5 To Attachment Figure 7 As shown, the second elastic member 32 can be directly fixedly installed at the middle end of the first elastic member 35, and the transfer balance seat 33 can be omitted, thereby reducing the material cost of the component;

[0060] In addition, the ends of the second elastic member 32 arranged at the left and right ends of the buffer connecting sleeve 31 can be fixed on the opposite side end surfaces of the two spray mounting seats 18, respectively, so that the axial vibration of the spray power tube 40 fixed in the buffer connecting sleeve 31 is directly transmitted to the spray mounting seat 18 and the forearm suspension 11, and the axial vibration transmitted by the buffer connecting sleeve 31 is absorbed by the second elastic member 32 and the first elastic member 35; at the same time, the second elastic member 32 is fixedly connected to the spray mounting seat 18, which can absorb and buffer the radial bending and torsional deformation force received by the spray power tube 40, and can also omit the component material cost of the transmission balance seat 33, thereby improving the convenience of maintenance and replacement of spray structure components, and reducing the assembly difficulty of the spray structure of the forging mold.

[0061] Embodiment 4

[0062] See attached Figures 5 to 7 As shown, the first elastic member 35 and the second elastic member 32 can be made of other buffer materials or structures with axial elastic deformation, and can also be made of a tubular structure made of a material that is axially seamless, mass-continuous and isotropic in elastic deformation, which can ensure the bending and torsional moment transmission and buffering effect between the two forearm suspensions 11, while maintaining the assembly gap stability of the spray power pipe 40 in the spray installation cavity 19, improving the installation stability of nozzles such as release agents and coolants, and reducing the difficulty of installation and processing.

[0063] The embodiments and / or implementation methods described above are only used to illustrate the preferred embodiments and / or implementation methods for realizing the technology of the utility model, and are not intended to limit the implementation methods of the technology of the utility model in any form. Any technical personnel in this field may make slight changes or replace them with other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the utility model, but they should still be regarded as technologies or embodiments that are essentially the same as the utility model.

[0064] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and its core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A spray structure integral forearm, comprising a connecting support frame (13) and two forearm suspensions (11) arranged opposite to each other, wherein a spray mounting seat (18) is provided at a swing end of the forearm suspension (11), characterized in that: The connecting support frame (13), the forearm suspension (11) and the spray mounting seat (18) are an integrally formed rigid structure.

2. According to the spray structure integral forearm described in claim 1, it is characterized in that: A connection support hole (20) is provided in the connection support frame (13), a spray mounting seat (18) is provided at the swing end of the forearm suspension (11), and a spray mounting cavity (19) is provided in the spray mounting seat (18).

3. According to the spray structure integral forearm as described in claim 2, it is characterized in that: A gap is left between the outer end surface of the spray installation cavity (19) and the outer end surface of the forearm suspension (11).

4. The integrated front arm of the spray structure according to claim 3, characterized in that: A first slot body (15) is provided on the side surface of the forearm suspension (11); the first slot body (15) is oriented in the direction of the centrifugal force of the swinging motion of the forearm suspension (11); and contours at both ends of the first slot body (15) are arc-shaped.

5. The integrated front arm of the spray structure according to claim 4, characterized in that: A reinforcing rib (14) is provided in the first slot body (15), and the reinforcing rib (14) is oriented perpendicular to the direction of the centrifugal force of the swing of the forearm suspension (11).

6. The integrated front arm of the spray structure according to claim 5, characterized in that: A telescopic connecting frame (12) is fixedly connected between the two forearm suspensions (11), and a second slot body (41) is provided in the telescopic connecting frame (12).

7. The integrated front arm of the spray structure according to claim 6, characterized in that: A first telescopic seat (16) and a second telescopic seat (17) are fixedly connected to the telescopic connecting frame (12); the first telescopic seat (16) and the second telescopic seat (17) are respectively located on the side surfaces of the telescopic connecting frame (12) in the forward and backward directions of the swinging of the forearm suspension (11) around the connecting support frame (13).

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