Mechanism for adjusting balance of diffusion welding pressure head

Abstract

The utility model relates to a mechanism for adjusting the balance of a diffusion welding pressure head. The mechanism sequentially comprises a driving mechanism and an upper pressure head from top to bottom, an upper connecting block is installed at the bottom of the driving mechanism, a lower connecting block is installed at the top of the upper pressing head, and a spherical adjusting mechanism is arranged between the upper connecting block and the lower connecting block. An upper tensioning support is arranged on the outer side of the top of the upper connecting block, a lower tensioning support is arranged on the outer side of the bottom of the lower connecting block, and a tensioning mechanism is arranged between the upper tensioning support and the lower tensioning support. Through the spherical contact of the spherical adjusting mechanism and the adjusting mode of the tensioning mechanism, the requirement for the parallelism of the upper pressing head and the lower pressing head of the diffusion welding equipment can be met.

Description

Technical Field

[0001] The utility model relates to the technical field related to diffusion welding, in particular to a mechanism for balancing and adjusting a diffusion welding pressure head. Background Art

[0002] After massive searches, it was found that the prior art announcement number is CN213224721U, which discloses a device for diffusion welding workpieces, including an upper beam and a lower beam, an insulating upper pressure head and an insulating lower pressure head are arranged in the vacuum furnace, the insulating upper pressure head is driven by a hydraulic cylinder to move up and down in the vacuum furnace, the insulating lower pressure head is fixed to the bottom of the vacuum furnace, and a multi-layer graphite electrode group arranged up and down is arranged between the insulating upper pressure head and the insulating lower pressure head, the graphite electrode group includes two graphite electrodes arranged up and down, and the two graphite electrodes are connected by a flexible connector. The utility model arranges multi-layer graphite electrodes in the vacuum furnace, and the graphite electrodes and the insulating upper pressure head are connected by a flexible connector, so that the multi-layer graphite electrodes can move up and down with the insulating upper pressure head, and can weld multi-layer workpieces at the same time, and a large number of workpieces can be welded at one time, thereby improving production efficiency.

[0003] At present, the upper and lower pressure heads of most diffusion welding equipment are integral or split structures. When the upper pressure head hydraulic cylinder moves downward, due to the gap between the cylinder body and the imbalance of hydraulic pressure, the hydraulic cylinder will tilt slightly, resulting in the parallelism of the upper and lower pressure heads out of tolerance; at the same time, after repeated use, the internal stress changes due to the high and low temperature environment changes, causing the upper pressure head and hydraulic cylinder to deform, which will also cause the parallelism of the upper and lower pressure heads to be out of tolerance. Due to the out-of-tolerance parallelism of the upper and lower pressure heads, the deformation of the product during the welding process is uneven, affecting the welding quality, and even leading to scrapping.

[0004] In view of the above-mentioned defects, the designer actively carried out research and innovation in order to create a mechanism for balancing and adjusting the diffusion welding pressure head to make it more valuable for industrial use. Utility Model Content

[0005] In order to solve any of the above technical problems, the purpose of the utility model is to provide a mechanism for balancing and adjusting a diffusion welding pressure head.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A mechanism for balancing and adjusting a diffusion welding pressure head, comprising a driving mechanism and an upper pressure head in order from top to bottom;

[0008] An upper connecting block is installed at the bottom of the driving mechanism, a lower connecting block is installed at the top of the upper pressure head, and a spherical adjustment mechanism is arranged between the upper connecting block and the lower connecting block;

[0009] An upper tensioning bracket is arranged on the outer side of the top of the upper connecting block, a lower tensioning bracket is arranged on the outer side of the bottom of the lower connecting block, and a tensioning mechanism is arranged between the upper tensioning bracket and the lower tensioning bracket.

[0010] As a further improvement of the utility model, the tensioning mechanism includes a plurality of adjusting rods, the top of the adjusting rods is clamped on the top of the upper tensioning bracket, and the bottom of the adjusting rods is adjustably mounted on the bottom of the lower tensioning bracket through nuts.

[0011] As a further improvement of the utility model, the spherical adjustment mechanism includes a spherical convex surface of an upper connecting block and a first spherical concave surface of a lower connecting block. The spherical convex surface of the upper connecting block is arranged at the bottom of the upper connecting block, and the first spherical concave surface of the lower connecting block is arranged at the top of the lower connecting block. The spherical convex surface of the upper connecting block is connected together with the first spherical concave surface of the lower connecting block below.

[0012] As a further improvement of the utility model, the spherical adjustment mechanism includes a support seat and a main sliding ball, an upper connecting block concave surface is arranged in the middle position of the bottom of the upper connecting block, a support seat is arranged on the outer side of the bottom of the upper connecting block, a support seat convex surface is arranged on the support seat directly below the concave surface of the upper connecting block, a lower connecting block second concave surface is arranged on the lower connecting block directly below the convex surface of the support seat, and a main sliding ball is installed on the convex surface of the support seat, and the main sliding ball is in contact with the second concave surface of the lower connecting block below.

[0013] As a further improvement of the utility model, an auxiliary sliding ball in contact with the main sliding ball is arranged between the top of the main sliding ball and the concave surface of the upper connecting block.

[0014] As a further improvement of the utility model, the number of the auxiliary sliding balls is several.

[0015] As a further improvement of the utility model, the driving mechanism is an oil cylinder or a hydraulic cylinder.

[0016] By means of the above scheme, the utility model has at least the following advantages:

[0017] The utility model can ensure the parallelism requirement of the upper and lower pressure heads of the diffusion welding equipment through the spherical contact of the spherical adjustment mechanism and the adjustment mode of the tensioning mechanism.

[0018] The utility model has the advantages of simple structure, convenient use, low cost and strong operability.

[0019] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of a mechanism for balancing and adjusting a diffusion welding pressure head according to the utility model;

[0022] Figure 2 yes Figure 1 Schematic diagram of the internal structure;

[0023] Figure 3 yes Figure 2 Another embodiment of the mid-spherical adjustment mechanism.

[0024] The meanings of the various reference numerals in the figures are as follows.

[0025] Driving mechanism 1, upper pressure head 2, spherical adjustment mechanism 3, tensioning mechanism 4, upper connecting block 5, lower connecting block 6, spherical convex surface 7 of upper connecting block, first spherical concave surface 8 of lower connecting block, upper tensioning bracket 9, lower tensioning bracket 10, adjusting rod 11, spherical concave surface 12 of upper connecting block, supporting seat 13, spherical convex surface 14 of supporting seat, auxiliary sliding ball 15, main sliding ball 16, second spherical concave surface 17 of lower connecting block. DETAILED DESCRIPTION

[0026] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] In order to make the technical personnel in the technical field better understand the scheme of the utility model, the technical scheme in the embodiment of the utility model will be clearly and completely described below in combination with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, rather than all the embodiments. The components of the embodiment of the utility model usually described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model for protection, but only represents the selected embodiment of the utility model. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the utility model.

[0028] Example

[0029] like Figure 1 to Figure 3As shown,

[0030] A mechanism for balancing and adjusting a diffusion welding pressure head comprises, from top to bottom, a driving mechanism 1 and an upper pressure head 2, wherein the driving mechanism 1 is an oil cylinder or a hydraulic cylinder.

[0031] 1. An upper connecting block 5 is installed at the bottom of the driving mechanism 1, a lower connecting block 6 is installed at the top of the upper pressure head 2, and a spherical adjustment mechanism 3 is arranged between the upper connecting block 5 and the lower connecting block 6.

[0032] 1. The first embodiment of the spherical adjustment mechanism 3 of the utility model:

[0033] The spherical adjustment mechanism 3 includes an upper connecting block spherical convex surface 7 and a lower connecting block first spherical concave surface 8. The upper connecting block spherical convex surface 7 is arranged at the bottom of the upper connecting block 5, and the lower connecting block first spherical concave surface 8 is arranged at the top of the lower connecting block 6. The upper connecting block spherical convex surface 7 is connected to the lower connecting block first spherical concave surface 8 below.

[0034] Wherein, a friction pair is arranged between the spherical convex surface 7 of the upper connecting block and the first spherical concave surface 8 of the lower connecting block, and the friction pair is a spherical friction pair.

[0035] 2. The second embodiment of the spherical adjustment mechanism 3 of the utility model:

[0036] The spherical adjustment mechanism 3 includes a support seat 13 and a main sliding ball 16. An upper connecting block concave surface 12 is arranged in the middle position of the bottom of the upper connecting block 5, and a support seat 13 is arranged on the outer side of the bottom of the upper connecting block 5. A support seat convex surface 14 is arranged on the support seat 13 directly below the upper connecting block concave surface 12, and a lower connecting block second concave surface 17 is arranged on the lower connecting block 6 directly below the support seat convex surface 14. The main sliding ball 16 is installed on the support seat convex surface 14, and the main sliding ball 16 is in contact with the lower connecting block second concave surface 17 below.

[0037] A secondary sliding ball 15 in contact with the main sliding ball 16 is arranged between the top of the main sliding ball 16 and the concave surface 12 of the upper connecting block, and the number of the secondary sliding balls 15 is several.

[0038] 2. An upper tensioning bracket 9 is arranged on the outer side of the top of the upper connecting block 5, a lower tensioning bracket 10 is arranged on the outer side of the bottom of the lower connecting block 6, and a tensioning mechanism 4 is arranged between the upper tensioning bracket 9 and the lower tensioning bracket 10.

[0039] The tensioning mechanism 4 includes a plurality of adjusting rods 11 , the top of the adjusting rod 11 is clamped on the top of the upper tensioning bracket 9 , and the bottom of the adjusting rod 11 is adjustably mounted on the bottom of the lower tensioning bracket 10 through a nut.

[0040] The working principle of this utility model is briefly described as follows:

[0041] The existing diffusion welding equipment has fixed upper and lower pressure heads, which are prone to non-parallelism during use, resulting in inconsistent upper pressure head travel when welding products, uneven deformation of parts, poor local welding quality, and even the risk of scrapping. The utility model can accurately adjust the parallelism of the upper and lower pressure heads to ensure that the welding deformation of the product is uniform and reliable.

[0042] A set of spherical adjustment device and tensioning mechanism are added between the driving mechanism 1 and the upper pressure head 2 on the equipment. By adjusting the length of the axial adjustment rod 11, the position of the convex and concave surfaces of the spherical adjustment device is driven, so that the upper pressure head produces a certain amount of upward, downward, left and right displacement, so that the upper pressure head plane is parallel to the lower pressure head.

[0043] Through the structural setting of the concave and convex surfaces of the spherical adjustment device, the concave and convex surfaces of the spherical adjustment device are in a universal connection state. The length of the adjusting bolt is adjusted to control the connection angle and direction of the convex and concave surfaces of the spherical adjustment device, thereby controlling the left and right and up and down movement of the lower bottom surface of the upper pressure head. Then, by measuring the parallelism of the upper pressure head bottom plate and the upper surface of the lower pressure head of the equipment with a dial indicator, the absolute parallelism of the upper pressure head and the lower pressure head can be accurately controlled. This device has a simple structure and is easy to operate.

[0044] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model 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 utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implying the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0045] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. A mechanism for balancing and adjusting a diffusion welding pressure head, comprising, from top to bottom, a driving mechanism (1) and an upper pressure head (2); Features: An upper connecting block (5) is installed at the bottom of the driving mechanism (1), a lower connecting block (6) is installed at the top of the upper pressure head (2), and a spherical adjustment mechanism (3) is provided between the upper connecting block (5) and the lower connecting block (6); An upper tensioning bracket (9) is arranged on the outer side of the top of the upper connecting block (5), a lower tensioning bracket (10) is arranged on the outer side of the bottom of the lower connecting block (6), and a tensioning mechanism (4) is arranged between the upper tensioning bracket (9) and the lower tensioning bracket (10).

2. A mechanism for balancing and adjusting a diffusion welding pressure head as claimed in claim 1, characterized in that: The tensioning mechanism (4) comprises a plurality of adjusting rods (11), the top of the adjusting rod (11) being clamped on the top of the upper tensioning bracket (9), and the bottom of the adjusting rod (11) being adjustably mounted on the bottom of the lower tensioning bracket (10) via a nut.

3. A mechanism for balancing and adjusting a diffusion welding pressure head according to claim 1, characterized in that: The spherical adjustment mechanism (3) comprises an upper connecting block spherical convex surface (7) and a lower connecting block first spherical concave surface (8); the upper connecting block spherical convex surface (7) is arranged at the bottom of the upper connecting block (5), and the lower connecting block first spherical concave surface (8) is arranged at the top of the lower connecting block (6); the upper connecting block spherical convex surface (7) is connected to the lower connecting block first spherical concave surface (8) below.

4. A mechanism for balancing and adjusting a diffusion welding pressure head as claimed in claim 1, characterized in that: The spherical adjustment mechanism (3) comprises a support seat (13) and a main sliding ball (16); an upper connecting block concave surface (12) is arranged at the middle position of the bottom of the upper connecting block (5); a support seat (13) is arranged on the outer side of the bottom of the upper connecting block (5); a support seat convex surface (14) is arranged on the support seat (13) directly below the upper connecting block concave surface (12); a lower connecting block second concave surface (17) is arranged on the lower connecting block (6) directly below the support seat convex surface (14); a main sliding ball (16) is installed on the support seat convex surface (14); and the main sliding ball (16) is in contact with the lower connecting block second concave surface (17) below.

5. A mechanism for balancing and adjusting a diffusion welding pressure head as claimed in claim 4, characterized in that: An auxiliary sliding ball (15) in contact with the main sliding ball (16) is arranged between the top of the main sliding ball (16) and the concave surface (12) of the upper connecting block.

6. A mechanism for balancing and adjusting a diffusion welding pressure head as claimed in claim 5, characterized in that: The number of the auxiliary sliding balls (15) is several.

7. A mechanism for balancing and adjusting a diffusion welding pressure head as claimed in claim 1, characterized in that: The driving mechanism (1) is an oil cylinder or a hydraulic cylinder.

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