Pressurizing tool

Abstract

The utility model relates to a pressurizing tool, and belongs to the technical field of rubber ring machining. Comprising a baseplate; the guide rods are symmetrically connected to the bottom plate; the pressurizing block is connected to the guide rod, and a pressurizing head used for pressurizing fluororubber is arranged on the pressurizing block; and the driving assembly is connected between the guide rods and is used for driving the pressurizing block to move up and down along the guide rods. When the device is used, pressure can be applied according to a fluororubber structure, and in the pressurizing process, it can be guaranteed that fluororubber is stressed in a balanced mode, and accurate control is achieved.

Description

Technical Field

[0001] This application relates to the field of rubber ring processing technology, and in particular to a pressure-applying tool. Background Technology

[0002] During the vulcanization bonding process of fluororubber, a certain pressure needs to be applied to the rubber ring. This pressure plays a role in compaction and air removal during the vulcanization bonding process. At the same time, appropriate pressure can ensure close contact between the adhesive and the bonded materials, reduce gaps and air bubbles, and thus improve the bonding strength.

[0003] Currently, the most widely used device in the vulcanization bonding process is the hydraulic flat vulcanizing machine. The hydraulic flat vulcanizing machine can provide stable and uniform pressure. This device is suitable for products with flat or near-flat shapes, such as tires, gaskets, and rubber sheets.

[0004] However, since one product requires bonding fluororubber to PTFE, and the bonding surface between fluororubber and PTFE is not flat, the hydraulic flat vulcanizing machine cannot meet the requirement of pressurizing non-planar fluororubber. Summary of the Invention

[0005] This application provides a pressure fixture to address the shortcomings of related technologies where hydraulic flat vulcanizing machines cannot adapt to the specific shapes of products.

[0006] This application provides a pressure fixture, comprising: a base plate; guide rods symmetrically connected to the base plate; a pressure block connected to the guide rods, the pressure block having a pressure head for pressurizing fluororubber; and a drive assembly connected between the guide rods and used to drive the pressure block to move up and down along the guide rods.

[0007] In some embodiments, the drive assembly includes: a fixing block connected to the guide rod; and a bolt rod passing through the fixing block and rotatably connected to the pressure block.

[0008] In some embodiments, the pressure block is provided with a connecting groove, the bolt rod extends into the connecting groove, and the pressure block is also provided with a limiting member, which is used to prevent the bolt rod from falling out of the connecting groove.

[0009] In some embodiments, the limiting member includes a limiting block fixed on the pressure block, a limiting groove is provided around the bolt rod, the limiting block is fitted onto the bolt rod and engages with the limiting groove.

[0010] In some embodiments, the limiting block is provided by two symmetrically arranged connecting blocks, and the connecting blocks are provided with arc-shaped grooves that are adapted to the bolt rod.

[0011] In some embodiments, the end of the bolt rod is tapered and connected within the connecting groove.

[0012] In some embodiments, the bolt rod is clearance-fitted with the connecting groove.

[0013] In some embodiments, the base plate is provided with an annular boss, which is aligned with the center of the pressure block.

[0014] In some embodiments, the guide rod is provided with an insert rod, the diameter of which is smaller than the diameter of the guide rod, and the fixing block is inserted into the insert rod and overlaps with the guide rod.

[0015] In some embodiments, a fixing nut is connected to the plug rod at the top of the fixing block.

[0016] The beneficial effects of the technical solution provided in this application include:

[0017] This application provides a pressurizing fixture, which includes: a base plate; guide rods symmetrically connected to the base plate; a pressurizing block connected to the guide rods, the pressurizing block having a pressurizing head for pressurizing fluororubber; and a driving assembly connected between the guide rods and used to drive the pressurizing block to move up and down along the guide rods. Therefore, in use, the driving assembly drives the pressurizing block to move downward along the guide rods until the pressurizing head on the pressurizing block comes into contact with the fluororubber, thereby effectively achieving pressurization of the fluororubber and ensuring the processing quality and production efficiency of the fluororubber. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of this application;

[0020] Figure 2 A cross-sectional schematic diagram provided for an embodiment of this application;

[0021] Figure label:

[0022] 1. Base plate; 2. Guide rod; 3. Pressure block; 30. Pressure head; 40. Fixing block; 41. Bolt rod; 410. Hex nut; 50. Connecting groove; 51. Limiting block; 6. Annular boss; 7. Insert rod; 8. Fixing nut. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] This application provides a pressure fixture that can solve the problem that hydraulic flat vulcanizing machines cannot adapt to the special shapes of products.

[0025] Given that a current fluororubber-PTFE bonding process uses a conical surface instead of a planar surface for bonding, this conical design increases the contact area between the bonding surfaces, thereby improving the bond strength and sealing performance between the fluororubber and PTFE. This design also helps prevent media leakage, especially in high-pressure or high-vacuum environments, where the tight fit of the conical surface ensures system sealing. However, hydraulic flatbed vulcanizing machines are suitable for pressurizing products with planar or near-planar shapes, requiring further innovative solutions.

[0026] See Figures 1 to 2 As shown, this application embodiment provides a pressure fixture, including: a base plate 1, a guide rod 2, a pressure block 3, and a drive assembly; wherein, the base plate 1 is rectangular and is provided with mounting holes, through which the base plate 1 can be conveniently connected to any work station. The guide rods 2 are symmetrically connected to the base plate 1. The pressure block 3 is connected to the guide rods 2 and has a pressure head 30 for pressurizing the fluororubber. The end of the pressure head 30 is tapered to effectively adapt to the pressurization of the fluororubber. The drive assembly is connected between the guide rods 2. In use, the drive assembly drives the pressure block 3 to move up and down along the guide rods 2, thereby effectively displacing the pressure head 30. When the pressure block 3 moves downward, the pressure head 30 can effectively apply a downward load to the fluororubber, thus pressurizing it. This pressure plays a role in compaction and air removal during the vulcanization and bonding process of fluororubber. At the same time, appropriate pressure can ensure close contact between the adhesive and the bonded material, reducing gaps and air bubbles, thereby improving the bonding strength. Pressure also helps the adhesive to be evenly distributed on the surface of the bonded material, enhancing the mechanical interlocking effect of the bonding interface, which is crucial for improving bonding strength and durability. The overall operation is convenient, and the structure for pressurizing fluororubber is simple and reliable.

[0027] The driving assembly provided in this application includes a fixed block 40 and a bolt rod 41. The fixed block 40 is connected to the guide rod 2; the bolt rod 41 passes through the fixed block 40 and is rotatably connected to the pressure block 3. During operation, by rotating the bolt rod 41, the bolt rod 41 engages with the fixed block 40 through a threaded connection, thus generating a tendency for rotational displacement. Since the bolt rod 41 is rotatably connected to the pressure block 3, its rotation, constrained by the guide rod 2, effectively drives the pressure block 3 to produce linear displacement, thereby driving the pressure block 3. The pressure head 30 then applies pressure to the fluororubber.

[0028] In this application, an annular boss 6 is also provided on the base plate 1, and the annular boss 6 is aligned with the center of the pressure block 3. During use, by placing the fluororubber in the annular boss 6, the fluororubber can be easily positioned on the base plate 1 and kept aligned with the pressure head 30, ensuring reliable use and guaranteeing the pressure accuracy of the fluororubber. In other embodiments, a groove adapted to the fluororubber can also be provided on the base plate 1. Considering the need to pressure fluororubber of different sizes, this application provides a detachable annular boss 6. The pressure block 3 is fitted onto the guide rod 2, thus facilitating disassembly and replacement for pressure applications of different sizes of fluororubber.

[0029] Considering the adhesive properties of fluororubber, this application requires that pressure be applied slowly to prevent damage to the adhesive layer, and the pressure level should be accurately controlled. Based on these two conditions, the pressure device utilizes the sawtooth thread of the bolt rod 41 to achieve unidirectional transmission and smooth pressure increase. Furthermore, for convenient operation of the bolt rod 41, a hexagonal nut 410 is provided at the top of the bolt rod 41. Applying a given force with a wrench will control the rotation of the bolt rod 41, saving time and effort.

[0030] In this application, a connecting groove 50 is provided on the pressure block 3, and the bolt rod 41 extends into the connecting groove 50. A limiting member is also provided on the pressure block 3 to prevent the bolt rod 41 from falling out of the connecting groove 50. This effectively achieves a rotatable connection between the bolt rod 41 and the pressure block 3, allowing the bolt rod 41 to rotate freely within the connecting groove 50 during use. The limiting member includes a limiting block 51, which is fixed to the pressure block 3. A limiting groove is provided around the bolt rod 41, and the limiting block 51 is fitted onto the bolt rod 41 and engages with the limiting groove.

[0031] During installation, the limiting block 51 is first fitted onto the bolt rod 41. After the bolt rod 41 is connected into the connecting groove 50, the limiting block 51 engages with the limiting groove. The limiting block 51 is also fixed to the pressure block 3 via screws, among other things. This effectively connects the bolt rod 41 to the pressure block 3, ensuring a stable and reliable limiting of the bolt rod 41.

[0032] In this application, to improve the ease of connection between the bolt rod 41 and the pressure block 3, the end of the bolt rod 41 is tapered and connected within the connecting groove 50. Furthermore, the bolt rod 41 and the connecting groove 50 are fitted with a clearance fit, allowing the bolt rod 41 to rotate freely within the connecting groove 50 and reducing wear between it and the inner wall of the connecting groove 50.

[0033] In order to improve the ease of installation of the limiting block 51, the limiting block 51 is provided by two symmetrically arranged connecting blocks. The shape of the connecting blocks includes, but is not limited to, a semi-circular arc shape, and the connecting blocks are provided with arc-shaped grooves that are compatible with the bolt rod 41.

[0034] In this application, to facilitate the installation and disassembly of the fixing block 40, and further facilitate the replacement of the pressure block 3, an insert rod 7 is provided around the guide rod 2. The diameter of the insert rod 7 is smaller than the diameter of the guide rod 2. The fixing block 40 is then inserted into the insert rod 7 and overlaps with the guide rod 2, thereby effectively connecting the reinforcing block to the guide rod 2, which is very convenient. In addition, to reinforce the installation of the fixing block 40, a fixing nut 8 is also connected to the top of the fixing block 40 on the insert rod 7. The fixing nut 8 has a reliable structure and is easy to install and remove.

[0035] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "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; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0036] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A pressurizing tool characterized by, The utility model relates to a fluorine rubber pressing device, which comprises the following components: a bottom plate (1); a guide rod (2) symmetrically connected to the bottom plate (1); a pressing block (3) connected to the guide rod (2), wherein the pressing block (3) is provided with a pressing head (30) for pressing fluorine rubber; a driving assembly connected between the guide rods (2) and used for driving the pressing block (3) to move up and down along the guide rods (2).

2. A press tool as claimed in claim 1, characterised in that: The driving assembly comprises: a fixed block (40) connected to the guide rod (2); a bolt rod (41) penetrating through the fixed block (40) and rotationally connected to the pressing block (3).

3. A press tool as claimed in claim 2, wherein: The pressing block (3) is provided with a connecting groove (50), the bolt rod (41) extends into the connecting groove (50), and the pressing block (3) is further provided with a limiting piece for limiting the bolt rod (41) from falling out of the connecting groove (50).

4. A press tool as claimed in claim 3, wherein: The limiting piece comprises a limiting block (51) fixed to the pressing block (3), a limiting groove is annularly arranged on the bolt rod (41), and the limiting block (51) is sleeved on the bolt rod (41) and is clamped with the limiting groove.

5. A press tool as claimed in claim 4, wherein: The limiting block (51) is formed by two symmetrically arranged connecting blocks, and the connecting blocks are provided with arc-shaped grooves matched with the bolt rod (41).

6. A press tool as claimed in claim 3, wherein: The end of the bolt rod (41) is conically arranged and connected into the connecting groove (50).

7. A press tool as claimed in claim 3, wherein: The bolt rod (41) is clearance-fitted with the connecting groove (50).

8. A press tool as claimed in claim 1, wherein: The bottom plate (1) is provided with an annular boss (6) which is aligned with the center of the pressing block (3).

9. A press tool as claimed in claim 2, wherein: The guide rod (2) is annularly provided with a plug rod (7), the diameter of the plug rod (7) is smaller than that of the guide rod (2), the fixed block (40) is inserted into the plug rod (7) and is overlapped with the guide rod (2).

10. A press tool as claimed in claim 9, wherein: The plug rod (7) is connected with a fixed nut (8) at the top of the fixed block (40).

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