Hole-making device and hole-making method for sealing element

Abstract

The present invention provides a hole-making device and method for sealing components, addressing the problems of inaccurate hole-making positioning and large hole-making errors in existing rubber products. A cavity is provided along the extension direction of the hole-making device, and is used to accommodate at least a semi-finished seal component having a hole-making surface. The hole-making surface is used to provide multiple assembly holes. The cavity includes a first wall and a second wall disposed opposite each other, each of which is provided with multiple groups of through-holes, and the multiple groups of through-holes are used to locate the positions of the multiple assembly holes on the hole-making surface. The present invention utilizes mechanical processing or 3D printing to preform the seal component according to its shape, and is suitable for use in punching seal components with elongated straight structures, elongated curved structures, and elongated closed structures. After the seal component is placed, a hole is directly made at the predetermined hole position or the hole is removed after marking, which greatly saves the time required for hole-making in large seals and improves the accuracy of the hole position.

Description

Technical Field

[0001] The invention belongs to the technical field of rubber sealing component processing, and particularly relates to a sealing component hole-making device and a hole-making method. Background Art

[0002] Rubber materials are widely used in defense and civilian industries due to their softness, ease of deformation, high elasticity, and good environmental adaptability. Seal design is generally based on the clearances within the mounting structure. Due to distortion and deformation within the mounting structure, the corresponding seal structure can exhibit irregularities. Therefore, the 3D seal model is designed to reflect this irregularity, and the seal is manufactured according to this 3D model.

[0003] In the manufacture of seals, there are the following problems in hole making:

[0004] 1. Directly manufacturing seals according to the 3D model. After processing, rubber seals are soft and easily deformed, making it impossible to determine the hole position and there is no effective method to make holes;

[0005] 2. Utilizing the seal's inherent deformation capability, irregular 3D models are converted into regular 3D models to manufacture seals. This reduces seal processing costs and difficulty, but the seal will be partially stretched and deformed, making it difficult to determine the hole position and ineffectively creating holes. Summary of the Invention

[0006] The invention provides a hole-making device and a hole-making method for a sealing component, which solve the problems of inaccurate hole-making positioning and large hole-making errors in existing rubber products.

[0007] In order to achieve the above object, the technical solution of the present invention is as follows:

[0008] A hole-making device for a seal, wherein a cavity is provided along the extension direction of the hole-making device, the cavity is used to accommodate at least a semi-finished product of the seal having a hole-making surface, the hole-making surface is used to provide a plurality of assembly holes, the cavity includes a first wall and a second wall arranged opposite to each other, the first wall and the second wall are provided with a plurality of groups of through positioning holes, the plurality of groups of through positioning holes are used to locate the positions of the plurality of assembly holes on the hole-making surface.

[0009] Furthermore, the first wall and the second wall are connected by the third wall. The third wall has the same extension direction as the hole-making device. The third wall is used to limit the depth of the hole-making surface inserted into the cavity.

[0010] Furthermore, the cavity is continuous along the extending direction.

[0011] Furthermore, the cavity is provided with an opening at a position opposite to the third wall, and the opening is used to guide the hole-making surface to be inserted into the cavity.

[0012] Furthermore, the limiting structure is used to limit the sealing portion of the sealing member to be inserted into the cavity.

[0013] Furthermore, the dimension between the first wall and the second wall is greater than the theoretical dimension of the thickness of the hole-making surface.

[0014] Furthermore, the difference between the dimension between the first wall and the second wall and the theoretical dimension is 0.2 mm to 0.4 mm.

[0015] Furthermore, the difference is 0.4 mm.

[0016] A method for making a hole in a sealing member, comprising:

[0017] Inserting a semi-finished sealing member having a hole-making surface into a cavity of a hole-making device, wherein the cavity extends in the same direction as the hole-making device, the cavity comprising a first wall and a second wall opposite to each other, the first wall and the second wall being provided with a plurality of through positioning holes;

[0018] Marking the hole center positions on the hole making surface through the multiple groups of through positioning holes;

[0019] The semi-finished product is taken out from the cavity, and a plurality of assembly holes are made at the marks on the hole-making surface using a laser hole-making device or a water jet hole-making device to obtain the sealing member.

[0020] Furthermore, the sealing member is inserted into the cavity to verify whether the plurality of assembly holes are connected with the plurality of groups of through positioning holes.

[0021] A method for making a hole in a sealing member, comprising:

[0022] Inserting a semi-finished sealing member having a hole-making surface into a cavity of a hole-making device, wherein the cavity extends in the same direction as the hole-making device, the cavity comprising a first wall and a second wall opposite to each other, the first wall and the second wall being provided with a plurality of through positioning holes;

[0023] Marking the hole center positions on the hole making surface through the multiple groups of through positioning holes;

[0024] The hole-making device makes a plurality of assembly holes at the marks on the hole-making surface through the positioning holes;

[0025] The sealing member is removed from the cavity to obtain a sealing member with a hole.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The present invention provides a hole-making device and a hole-making method for a sealing component. The device adopts mechanical processing or 3D printing to preform the sealing component according to a three-dimensional model. The position accuracy of the preformed hole is 0.1 mm, and the tolerance of the preformed hole diameter is 0.05 mm. The device is suitable for making holes in seals with long straight structures, long curved structures, and long closed structures. After the sealing component is placed, a hole is directly made at a predetermined hole position or the sealing component is taken out or directly made a hole after marking. This greatly saves the hole-making time of large sealing components and improves the accuracy of the hole position.

[0028] Of course, the implementation of the various technical solutions of the present invention does not necessarily require achieving all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, without paying any creative work, they can also obtain drawings of other embodiments based on these drawings.

[0030] Figure 1 A schematic diagram of a three-dimensional model of a seal designed for Example 1 of the present invention;

[0031] Figure 2 This is a schematic structural diagram of a semi-finished sealing component according to Example 1 of the present invention;

[0032] Figure 3 for Figure 2 AA side sectional view;

[0033] Figure 4 This is a structural diagram of a hole-making device according to embodiment 1 of the present invention;

[0034] Figure 5 This is a schematic diagram of the use process of the hole-making device according to Example 1 of the present invention;

[0035] Figure 6 This is a schematic diagram of the final sealing structure after hole formation is completed in Example 1 of the present invention;

[0036] In the figure,

[0037] 1-semi-finished seal, 101-sealing part, 102-hole making surface, 103-assembly hole;

[0038] 2-hole making device, 201-sealing part cavity, 202-hole making surface cavity, 203-positioning hole, 204-first wall, 205-second wall, 206-third wall. DETAILED DESCRIPTION

[0039] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present disclosure.

[0040] In the description of this patent, it should be understood that the terms "center", "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. They are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on this patent.

[0041] In the description of this patent, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "set" should be understood in a broad sense. For example, they can refer to fixed connection or set, detachable connection or set, or integral connection or set. Those skilled in the art can understand the specific meanings of the above terms in this patent based on the specific circumstances. The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0042] Seals are manufactured based on 3D models. Alternatively, the inherent deformability of the seal rubber can be utilized to transform irregular 3D models into regular 3D models, such as converting 3D distortion into 2D distortion. Local stretching and deformation of the seal can be used to meet application requirements, thereby reducing mold manufacturing costs and product processing difficulty. Before holes are drilled, the seal is considered a semi-finished product. After holes are drilled, the semi-finished product becomes the final seal.

[0043] The hole-making device is designed according to the three-dimensional model of the seal to facilitate the use of hole-making and ensure the hole-making accuracy. The assembly space and position are designed to realize the design of the three-dimensional model of the hole-making device. The designed three-dimensional model of the hole-making device is prefabricated by machining or 3D printing. The material is metal or plastic. The prefabricated hole position accuracy is 0.1mm, and the prefabricated hole diameter tolerance is 0.05mm.

[0044] The hole-forming device of the present invention is used to determine the hole positions and create multiple assembly holes in semi-finished sealing parts. The semi-finished sealing parts to which this device is applicable generally have a sealing portion and a hole-forming surface, with the multiple assembly holes provided on the hole-forming surface. The hole-forming device primarily functions to: 1. accommodate and position the hole-forming surface of the semi-finished sealing part; 2. specifically locate the assembly holes to be created on the hole-forming surface.

[0045] The basic structure of the hole-making device is as follows:

[0046] A cavity is provided along the extension direction of the hole-making device, which is used to accommodate and position the hole-making surface. The cavity includes a first wall and a second wall arranged opposite to each other, and multiple groups of through positioning holes are provided on the first wall and the second wall. The multiple groups of through positioning holes are used to locate the positions of multiple assembly holes on the hole-making surface.

[0047] The first wall and the second wall are connected by a third wall, and the third wall has the same extension direction as the hole-making device. The third wall is used to limit the depth of the hole-making surface inserted into the cavity. The cavity is through-through along the extension direction and the cavity is provided with an opening at a position relative to the third wall. The opening is used to guide the hole-making surface to be inserted into the cavity. The first wall and the second wall are connected as a whole through the third wall to form a U-shaped groove structure; in order to facilitate the insertion of the hole-making surface of the semi-finished seal, the distance between the first wall and the second wall should be greater than the thickness of the hole-making surface. However, too large a gap will cause the hole-making surface to be loose and shaken, resulting in inaccurate positioning of the assembly hole. According to the applicant's test, when the distance between the first wall and the second wall is greater than the thickness of the hole-making surface in the range of 0.2mm-0.4mm, it can meet the requirements of smooth insertion of the hole-making surface and ensure that the hole-making surface is not easy to swing after insertion and is accurately positioned.

[0048] Since the semi-finished sealing component has a sealing portion, a limiting structure is provided at the opening. The limiting structure is a step structure for limiting and accommodating the sealing portion.

[0049] The hole-making method based on the above-mentioned hole-making device includes the following steps:

[0050] Step 1: inserting a semi-finished sealing component having a hole-making surface into a cavity of a hole-making device;

[0051] Step 2: Mark the hole-making surface through multiple groups of through-hole positioning holes to mark the center position of the holes;

[0052] Step 3: Take the semi-finished sealing component out of the cavity, and use a hole-making device to make a plurality of assembly holes at the marked positions of the hole-making surface to obtain a sealing component with holes.

[0053] Step 4: Insert the completed sealing member into the cavity of the hole-making device again to verify whether the multiple assembly holes on the hole-making surface are connected with the multiple groups of through positioning holes.

[0054] Another hole-making method based on the above-mentioned hole-making device includes the following steps:

[0055] Step 1: inserting a semi-finished sealing component having a hole-making surface into a cavity of a hole-making device;

[0056] Step 2: Mark the hole-making surface through multiple groups of through-hole positioning holes to mark the center position of the holes;

[0057] Step 3: Use a hole-making device to make multiple assembly holes directly at the marked positions of the hole-making surface;

[0058] Step 4: Check whether the multiple assembly holes are connected with the multiple groups of through positioning holes, remove the sealing member from the cavity, and obtain a sealing member with holes.

[0059] Several specific embodiments of the present invention are described below:

[0060] Example 1:

[0061] See also Figure 1 In this embodiment, Figure 1 To design the three-dimensional model diagram of the seal, the seal structure is manufactured by Figure 1 Flattened into a long horizontally curved structure, Figure 2 This is a schematic diagram of the semi-finished seal structure. Figure 1 The design seals in Figure 2 The semi-finished seal is made after the hole is made. Figure 6 Schematic diagram of the sealing structure after hole making.

[0062] See also Figure 2 and Figure 3 As shown, the semi-finished sealing component 1 is a long horizontally curved structure as a whole, with a certain curvature along the length. From the cross-section, it includes a hollow sealing portion 101 and a hole-making surface 102.

[0063] See also Figure 3 and Figure 6 As shown, Figure 6 Schematic diagram of the final sealing structure after hole making is completed. The whole has a certain curvature along the length. From the cross-section, it includes a hollow sealing part 101 and a hole-making surface 102. The hole-making surface 102 is set at the lower end of the hollow sealing part 101. It is necessary to open a number of assembly holes 103 on the hole-making surface 102 according to the hole positions of the designed three-dimensional model of the seal to be fixedly connected to the part to be sealed, so that the hollow sealing part 101 reaches the sealing position to play a sealing role.

[0064] See also Figure 4 This embodiment provides a hole-making device for a sealing member. The hole-making device 2 is connected to Figure 1The shape of the three-dimensional model of the seal is designed to match. From the cross-section of the hole-making device 2, the outer contour of the hole-making device 2 is trapezoidal, including a first wall 204, a second wall 205 and a third wall 206. The first wall 204, the second wall 205 and the third wall 206 are connected to form a non-through cavity. The cavity is composed of a sealing portion cavity 201 and a hole-making surface cavity 202. The semi-finished seal 1 can be inserted and positioned in the cavity. Specifically, the hole-making surface 102 is inserted and positioned in the hole-making surface cavity 202. The width of the hole-making surface cavity 202 needs to be greater than the thickness of the hole-making surface 102. In this embodiment, the width of the hole-making surface cavity 202 is greater than the thickness of the hole-making surface 102 by 0.4 mm. The sealing portion 101 is arranged and limited in the sealing portion cavity 201, and a plurality of positioning holes 203 are opened in the hole-making device 2 where the hole-making surface cavity 202 is located.

[0065] In this embodiment, a matching hole maker and a hole marking device are also included. In this embodiment, the hole marking device is a marking tool. The outer diameter of the marking tool matches the aperture size of the positioning hole 203. The outer diameter of the marking tool is 0.1 mm smaller than the aperture size of the positioning hole 203. The marking tool can easily penetrate into the positioning hole 203 for marking, while ensuring the accuracy of the marking position. Figure 5 When the semi-finished sealing component 1 is placed in the hole-making device 2, the hole-making surface 102 enters the hole-making surface cavity 202 and is pressed tightly, and the sealing part 101 is placed in the sealing part cavity 201 and limited; at this time, a marking tool is used to mark the multiple groups of positioning holes 203 respectively, and the hole-making outer dimensions are marked on the hole-making surface 102 along the inner wall of the positioning holes 203. The positioning holes 203 are used as the marking reference. Then, the marked semi-finished sealing component 1 is taken out of the hole-making device 2, and a hole-making tool is used to drill holes according to the marks. In this embodiment, the hole-making tool is a mechanical drill.

[0066] Example 2:

[0067] Different from Example 1, the hole marking device of this embodiment is a marking pen, which is used to mark deeply into the positioning hole. The pen tip of the marking pen draws a mark on the hole-making surface along the inner wall of the positioning hole. The positioning hole is the marking reference. Then the marked semi-finished seal is taken out, and a hole maker is used to punch according to the mark. In this embodiment, the hole maker uses a laser; the rest of the technical content is the same as Example 1.

[0068] Example 3:

[0069] Different from Example 1, the hole marking device of this embodiment is a marking tool or a marking pen, which uses a marking tool or a marking pen to mark the hole center point on the hole making surface at the center position of the positioning hole. After marking, the semi-finished seal is taken out, and the hole diameter is determined based on the marked hole making center point, and then a hole maker is used to drill according to the mark; the rest of the technical content is the same as Example 1.

[0070] Example 4:

[0071] Different from Example 1, the hole-making device of this embodiment is a long straight structure and a long horizontal curved structure; it is suitable for punching holes in hollow sealing belts of long straight structures and long horizontal curved structures; the rest of the technical content is the same as Example 1.

[0072] It should be noted that when the length dimension of the semi-finished seals with long horizontal curved structures and long straight structures is larger than the length dimension of the hole-making device, during the hole-making process, the part exceeding the length dimension of the hole-making device is cut according to the length dimension of the hole-making device, and the semi-finished seals are cut to be flush with the hole-making device.

[0073] At the center of the positioning hole, use a marking tool or a marking pen to mark the center point of the hole on the hole making surface. After the marking is completed, the semi-finished seal is taken out, and the hole diameter is determined according to the marked hole making center point, and then a water jet is used to drill the hole according to the mark; the rest of the technical content is the same as Example 1

[0074] Example 5:

[0075] Different from Example 1, the hole-making device of this embodiment is a long closed structure, specifically a rounded rectangular structure; it is suitable for punching holes in hollow sealing belts of door-type structures; the rest of the technical content is the same as Example 1.

[0076] Example 6:

[0077] The difference from Example 1 is that when the sealing member to be punched is placed in the hole-making device, the hole-making surface enters the hole-making surface cavity and is tightened, and the sealing part is placed in the sealing part cavity for limiting; the sealing member is not removed from the hole-making device, and the hole-making device is directly used to punch holes according to the positioning holes. In this embodiment, a mechanical drill is used as the hole-making device, and the finished product is taken out of the hole-making device after the hole-making is completed; the rest of the technical content is the same as Example 1.

[0078] The above examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. Those skilled in the art can make several simple deductions, modifications or substitutions based on the concept of the present invention.

Claims

1. A hole-making device for a sealing member, characterized in that: A cavity is provided along the extension direction of the hole-making device, the cavity being used to accommodate at least the semi-finished product of the sealing member having a hole-making surface, the hole-making surface being used to provide a plurality of assembly holes, the cavity comprising a first wall and a second wall being oppositely arranged, the first wall and the second wall being provided with a plurality of groups of through positioning holes, the plurality of groups of through positioning holes being used to locate the positions of the plurality of assembly holes on the hole-making surface; The cavity further includes a third wall, the first wall and the second wall are connected by the third wall, the third wall and the hole-making device extend in the same direction, and the third wall is used to limit the depth of the hole-making surface inserted into the cavity; The cavity is continuous along the extension direction; The cavity is provided with an opening at a position opposite to the third wall, and the opening is used to guide the hole-making surface to be inserted into the cavity; A limiting structure is provided at the opening, and the limiting structure is used to limit the sealing portion of the sealing member to be inserted into the cavity; The dimension between the first wall and the second wall is greater than the theoretical dimension of the thickness of the hole-making surface; The difference between the dimension between the first wall and the second wall and the theoretical dimension is 0.2 mm to 0.4 mm.

2. The hole making device according to claim 1, characterized in that: The difference is 0.4 mm.

3. The hole making method according to claim 1 or 2, characterized in that: include: Inserting a semi-finished sealing member having a hole-making surface into a cavity of a hole-making device, wherein the cavity extends in the same direction as the hole-making device, the cavity comprising a first wall and a second wall opposite to each other, the first wall and the second wall being provided with a plurality of through positioning holes; Marking the hole center positions on the hole making surface through the multiple groups of through positioning holes; The semi-finished product is taken out from the cavity, and a plurality of assembly holes are made at the marks on the hole-making surface using a hole-making device to obtain a sealing member with holes; The sealing member is inserted into the cavity to verify whether the plurality of assembly holes are connected with the plurality of groups of through positioning holes.

4. The hole making method according to claim 1 or 2, characterized in that: include: Inserting a semi-finished sealing member having a hole-making surface into a cavity of a hole-making device, wherein the cavity extends in the same direction as the hole-making device, the cavity comprising a first wall and a second wall opposite to each other, the first wall and the second wall being provided with a plurality of through positioning holes; Marking the hole center positions on the hole making surface through the multiple groups of through positioning holes; The hole-making device makes a plurality of assembly holes at the marks on the hole-making surface through the positioning holes; The sealing member is removed from the cavity to obtain a sealing member with a hole.

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