Pressure maintaining jig

Abstract

The utility model discloses a pressure maintaining jig, and relates to the technical field of pressure maintaining jigs. The pressure maintaining jig comprises an upper pressure maintaining seat and a lower pressure maintaining seat, wherein the upper pressure maintaining seat is detachably connected with the lower pressure maintaining seat; the pressure maintaining upper seat is provided with an upper seat pressure maintaining position, the surface of the upper seat pressure maintaining position is provided with an upper seat contact part, and the upper seat contact part is elastic; the pressure maintaining lower seat is provided with a lower seat pressure maintaining position, and a lower seat contact part is arranged on the surface of the lower seat pressure maintaining position and has elasticity. According to the pressure maintaining jig, an elastic upper seat contact part is additionally arranged on the surface of an upper seat pressure maintaining position of an upper pressure maintaining seat, and meanwhile an elastic lower seat contact part is additionally arranged on the surface of a lower seat pressure maintaining position of a lower pressure maintaining seat. Thus, in the pressure maintaining process, the upper seat pressure maintaining position and the lower seat pressure maintaining position provide the main supporting effect, the upper seat contact part and the lower seat contact part are used for making contact with a workpiece, and therefore the problem that the surface of the workpiece is damaged due to too high hardness is avoided. By means of the design, the pressure maintaining effect can be guaranteed, and the workpiece can be effectively protected.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure-maintaining jigs, and in particular to a pressure-maintaining jig. Background Art

[0002] As a key auxiliary tool for product assembly and shaping, the core function of a pressure-retaining fixture is to ensure the stability of a workpiece's shape and dimensions by applying pressure. This tool's design principle is based on the elastic deformation and elastic recovery properties of materials science. By applying a force in the opposite direction of the external force, it effectively offsets the external force, thereby improving machining accuracy and product quality, and significantly reducing deformation and defects caused by the force.

[0003] Structurally, a pressure-maintaining fixture primarily consists of two components: an upper base and a lower base. The portion in direct contact with the workpiece is often constructed in an integrated form factor to ensure uniformity and stability across the contact surface. However, the hardness of the contact portion directly impacts the pressure-maintaining effect and workpiece integrity. If the hardness of the contact portion is too low, the applied pressure will be insufficient to achieve the desired pressure-maintaining effect, impacting workpiece stability. Conversely, if the hardness is too high, while sufficient pressure can be applied, it can easily damage the workpiece surface and even compromise its structural integrity. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a pressure-maintaining fixture.

[0005] The utility model discloses a pressure-maintaining fixture, comprising a pressure-maintaining upper seat and a pressure-maintaining lower seat, which are detachably connected to the pressure-maintaining lower seat; the pressure-maintaining upper seat has an upper seat pressure-maintaining position, the shape of which is adapted to the structure of one side of a workpiece, and the surface of the upper seat pressure-maintaining position is provided with an upper seat contact portion, which is elastic; the pressure-maintaining lower seat has a lower seat pressure-maintaining position, the shape of which is adapted to the structure of the other side of the workpiece, and the surface of the lower seat pressure-maintaining position is provided with a lower seat contact portion, which is elastic.

[0006] According to one embodiment of the present invention, the material used for the upper seat pressure-maintaining position is integrated with the material used for the upper seat contact portion, and the material used for the lower seat pressure-maintaining position is integrated with the material used for the lower seat contact portion.

[0007] According to one embodiment of the present invention, a plurality of upper seat connecting positions are provided on the edge of the upper seat pressure holding position, a plurality of upper seat connecting portions are provided on the edge of the upper seat contact portion, and the upper seat connecting positions and the upper seat connecting portions are welded one by one; a plurality of lower seat connecting positions are provided on the edge of the lower seat pressure holding position, a plurality of lower seat connecting portions are provided on the edge of the lower seat contact portion, and the lower seat connecting positions and the lower seat connecting portions are welded one by one.

[0008] According to one embodiment of the present invention, the pressure-maintaining upper seat includes an upper seat body, and the upper seat pressure-maintaining position is arranged on the inner side surface of the upper seat body.

[0009] According to one embodiment of the present invention, the pressure-maintaining lower seat includes a lower seat body and a lower seat panel. The lower seat panel is arranged on the inner side of the lower seat body, and the lower seat pressure-maintaining position is arranged on the surface of the lower seat panel.

[0010] According to one embodiment of the present invention, the lower seat panel is arranged on the inner side surface of the lower seat body through a constant force structure, and the constant force structure includes several groups of constant force components.

[0011] According to one embodiment of the present invention, the constant force component includes a constant force connecting member and a constant force elastic member, one end of the constant force connecting member passes through the lower seat panel and is connected to the lower seat body, the constant force elastic member is sleeved on the constant force connecting member, one end of the constant force elastic member is against the lower seat panel, and the other end of the constant force elastic member is against the lower seat body.

[0012] According to one embodiment of the present invention, it also includes a locking structure, which includes a locking assembly and a locking part. The locking assembly is arranged on the upper seat locking position of the pressure-maintaining upper seat, and the locking part is arranged on the lower seat locking position of the pressure-maintaining lower seat. The locking assembly and the locking part are detachably fastened.

[0013] According to one embodiment of the present invention, the lock assembly includes a lock connecting seat and a lock hook member. The lock connecting seat is arranged on the upper seat lock position, and the lock hook member is hinged on the lock connecting seat. The lock hook member and the lock member are detachably fastened.

[0014] According to one embodiment of the present invention, one end of the lock hook member is a pressing portion, and the other end of the lock hook member is a lock hook portion. A lock elastic member is provided between the pressing portion and the lock connecting seat, and the lock hook portion and the lock member are detachably fastened.

[0015] Compared with the prior art, the pressure-maintaining fixture of the present invention has the following advantages:

[0016] The pressure-holding fixture of this utility model features an elastic upper seat contact portion on the upper pressure-holding surface of the upper pressure-holding seat, and an elastic lower seat contact portion on the lower pressure-holding surface of the lower pressure-holding seat. Thus, during the pressure-holding process, the upper and lower pressure-holding positions provide primary support, while the upper and lower contact portions contact the workpiece, thus avoiding damage to the workpiece surface due to excessive hardness. This design ensures effective pressure-holding while effectively protecting the workpiece.

[0017] Secondly, the upper and lower pressure-holding fixtures, as well as the upper and lower pressure-holding fixtures, are manufactured using a two-shot injection molding process. This process reduces dimensional errors and ensures the stability of the pressure-holding dimensions.

[0018] Furthermore, the material of the upper pressure-holding position blends with the material of the upper contact portion, allowing them to fuse together. Similarly, the material of the lower pressure-holding position blends with the material of the lower contact portion, allowing them to fuse together. This design enhances the connection strength and effectively prevents separation between the upper pressure-holding position and the upper contact portion, or between the lower pressure-holding position and the lower contact portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0020] Figure 1 Schematic diagram of the structure of the pressure-maintaining fixture in the embodiment;

[0021] Figure 2 This is a structural diagram of the pressure-maintaining upper seat in the embodiment;

[0022] Figure 3 for Figure 2 Enlarged view of area A in the middle;

[0023] Figure 4 This is a schematic structural diagram of the pressure-maintaining lower seat in the embodiment;

[0024] Figure 5 for Figure 4 Enlarged view of area B in the middle;

[0025] Figure 6 A top view of the pressure-maintaining fixture in the embodiment;

[0026] Figure 7 for Figure 6 Structural cross-section of the middle CC surface;

[0027] Figure 8 for Figure 6 Structural cross-section of the middle DD surface.

[0028] Description of reference numerals:

[0029] 100, pressure-maintaining upper seat; 110, upper seat body; 111, upper seat locking position; 112, limiting recess; 120, upper seat pressure-maintaining position; 121, upper seat connecting position; 130, upper seat contact portion; 131, upper seat connecting portion;

[0030] 200, pressure-maintaining lower seat; 210, lower seat body; 211, lower seat locking position; 212, limiting protrusion; 220, lower seat panel; 230, lower seat pressure-maintaining position; 231, lower seat connecting position; 240, lower seat contact portion; 241, lower seat connecting portion; 250, constant force assembly; 251, constant force connecting member; 252, constant force elastic member;

[0031] 300, lock structure; 310, lock assembly; 311, lock connecting seat; 312, lock hook member; 3121, pressing portion; 3122, lock hook portion; 313, lock mounting seat; 314, lock elastic member; 320, lock member. DETAILED DESCRIPTION

[0032] The following diagrams illustrate various embodiments of the present invention. For clarity, many practical details will be included in the following description. However, it should be understood that these practical details are not intended to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not essential. Furthermore, to simplify the illustrations, some commonly used structures and components are depicted in a simplified schematic manner.

[0033] In addition, in the present invention, descriptions such as "first" and "second" are only used for descriptive purposes and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0034] This embodiment provides a pressure-maintaining fixture. Figure 1 The pressure-maintaining fixture includes a pressure-maintaining upper seat 100 and a pressure-maintaining lower seat 200, which are detachably connected. A workpiece is placed between the pressure-maintaining upper seat 100 and the pressure-maintaining lower seat 200. When the pressure-maintaining upper seat 100 and the pressure-maintaining lower seat 200 are connected, pressure is applied to the workpiece to maintain pressure.

[0035] See also Figure 2The pressure-maintaining upper seat 100 includes an upper seat body 110, with an upper seat pressure-maintaining position 120 disposed on the inner side of the upper seat body 110. The shape of the upper seat pressure-maintaining position 120 is adapted to the structure of one side of the workpiece. The surface of the upper seat pressure-maintaining position 120 is provided with an upper seat contact portion 130, which is elastic. The pressure-maintaining upper seat 100 provides support and shaping for the workpiece through the upper seat pressure-maintaining position 120 to ensure a pressure-maintaining effect. The contact portion 130 contacts the workpiece to avoid damage to the workpiece surface, thereby achieving both pressure maintenance and protection for the workpiece.

[0036] Furthermore, the upper seat body 110, the upper seat pressure-holding position 120, and the upper seat contact portion 130 are formed using two-color injection molding technology to ensure dimensional accuracy and shape stability. The material used for the upper seat pressure-holding position 120 and the material used for the upper seat contact portion 130 are capable of fusing with each other. During injection molding, these material properties cause the upper seat pressure-holding position 120 and the upper seat contact portion 130 to fuse, thereby ensuring that the upper seat contact portion 130 and the upper seat pressure-holding position 120 are firmly connected together, effectively preventing the upper seat contact portion 130 from detaching from the upper seat pressure-holding position 120.

[0037] See also Figure 4 The pressure-maintaining lower seat 200 includes a lower seat body 210 and a lower seat panel 220. The lower seat panel 220 is arranged on the inner side of the lower seat body 210. A lower seat pressure-maintaining position 230 is provided on the surface of the lower seat panel 220. The shape of the lower seat pressure-maintaining position 230 is adapted to the structure of one side of the workpiece. Among them, a lower seat contact portion 240 is provided on the surface of the lower seat pressure-maintaining position 230. The lower seat contact portion 240 is elastic. The pressure-maintaining lower seat 200 provides support and shaping for the workpiece through the lower seat pressure-maintaining position 230 to ensure the pressure-maintaining effect, and the contact portion 240 contacts the workpiece to avoid damaging the workpiece surface, thereby achieving both pressure-maintaining and protection of the workpiece.

[0038] Furthermore, the lower seat panel 220, the lower seat pressure-holding position 230, and the lower seat contact portion 240 are formed using two-color injection molding technology to ensure dimensional accuracy and shape stability. The material used for the lower seat pressure-holding position 230 and the material used for the lower seat contact portion 240 are capable of fusing with each other. During injection molding, these material properties cause the lower seat pressure-holding position 230 and the lower seat contact portion 240 to fuse, ensuring a secure connection between the lower seat contact portion 240 and the lower seat pressure-holding position 230 and effectively preventing the lower seat contact portion 240 from detaching from the lower seat pressure-holding position 230.

[0039] Furthermore, the lower seat panel 220 is mounted on the inner side of the lower seat body 210 through a constant force structure. Figure 4 and 8The constant force structure includes four groups of constant force components 250, which are distributed at the four corners of the lower seat panel 220 so that balanced pressure can be obtained at all locations on the lower seat panel 220. Specifically, the constant force components 250 include a constant force connector 251 and a constant force elastic member 252. One end of the constant force connector 251 passes through the lower seat panel 220 and is connected to the lower seat body 210, thereby achieving the connection between the lower seat panel 220 and the lower seat body 210. The constant force elastic member 252 is sleeved on the constant force connector 251. One end of the constant force elastic member 252 abuts against the lower seat panel 220, and the other end of the constant force elastic member 252 abuts against the lower seat body 210. The elastic force of the constant force elastic member 252 provides a constant pressure to the lower seat panel 220, thereby providing a constant pressure holding pressure to the workpiece. The pressure value can be adjusted by changing the elastic force of the constant force elastic member 252. In this embodiment, the constant force connecting member 251 is a plug screw, and the constant force elastic member 252 is a spring.

[0040] In addition, in order to strengthen the connection strength between the pressure holding position and the contact portion, this embodiment further provides reinforcement structures between the upper pressure holding position 120 and the upper contact portion 130 and between the lower pressure holding position 230 and the lower contact portion 240 .

[0041] See also Figure 2 and 3 A plurality of upper seat connecting positions 121 are provided on the edge of the upper seat pressure holding position 120, and a plurality of upper seat connecting portions 131 are provided on the edge of the upper seat contact portion 130. The upper seat connecting positions 121 and the upper seat connecting portions 131 are welded one by one, thereby increasing the welding area between the upper seat pressure holding position 120 and the upper seat contact portion 130, and thereby increasing the connection strength between the two.

[0042] Likewise, see Figure 4 and 5 A plurality of lower seat connecting positions 231 are provided on the edge of the lower seat pressure holding position 230, and a plurality of lower seat connecting portions 241 are provided on the edge of the lower seat contact portion 240. The lower seat connecting positions 231 and the lower seat connecting portions 241 are welded one by one, thereby increasing the welding area between the lower seat pressure holding position 230 and the lower seat contact portion 240, and thereby increasing the connection strength between the two.

[0043] In this embodiment, the upper seat connecting position 121 and the lower seat connecting position 231 both adopt a concave structure, and the upper seat connecting portion 131 and the lower seat connecting portion 241 both adopt a convex structure.

[0044] In addition, in order to facilitate the operator to operate the pressure-maintaining fixture, this embodiment also provides a locking structure 300, through which the pressure-maintaining upper seat 100 and the pressure-maintaining lower seat 200 can be quickly connected or separated.

[0045] See also Figure 1 、 27. The locking structure 300 includes a locking assembly 310 and a locking member 320. The locking assembly 310 is disposed on the upper seat locking position 111 of the pressure-maintaining upper seat 100, and the locking member 320 is disposed on the lower seat locking position 211 of the pressure-maintaining lower seat 200. The locking assembly 310 and the locking member 320 engage to secure the pressure-maintaining upper seat 100 and the pressure-maintaining lower seat 200 relative to each other. The upper seat locking positions 111 are disposed on opposite sides of the upper seat body 110, and the lower seat locking positions 211 are disposed on opposite sides of the lower seat body 210, with the upper seat locking positions 111 and the lower seat locking positions 211 corresponding one to one.

[0046] Specifically, the latch assembly 310 includes a latch connector 311 and a latch hook 312. The latch connector 311 is mounted on the upper latch position 111 via a latch mounting base 313. The latch hook 312 is hingedly mounted on the latch connector 311. The latch member 320 is mounted on the lower latch position 211. One end of the latch hook 312 is a pressing portion 3121, and the other end of the latch hook 312 is a latch hook portion 3122. A latch elastic member 314 is disposed between the pressing portion 3121 and the latch connector 311. This elastic member 314 continuously applies force to the pressing portion 3121, causing the latch hook portion 3122 to maintain its inward tilt. In this embodiment, the latch elastic member 314 is a spring.

[0047] When the locking cam 3122 is unlocked, the locking cam 3122 is unlocked and the locking cam 3122 is unlocked, and the locking cam 3122 is unlocked.

[0048] In addition, the four corners of the upper seat body 110 are respectively provided with limiting recesses 112, and the four corners of the lower seat body 210 are respectively provided with limiting protrusions 212. Through the positioning and plugging of the limiting recesses 112 and the limiting protrusions 212, the accurate connection between the pressure-maintaining upper seat 100 and the pressure-maintaining lower seat 200 can be achieved.

[0049] In summary, this pressure-holding fixture incorporates an elastic upper-seat contact portion on the upper pressure-holding surface of the upper pressure-holding seat, and an elastic lower-seat contact portion on the lower pressure-holding surface of the lower pressure-holding seat. Thus, during the pressure-holding process, the upper and lower pressure-holding positions provide primary support, while the upper and lower contact portions contact the workpiece, thus avoiding damage to the workpiece surface due to excessive hardness. This design ensures effective pressure-holding while effectively protecting the workpiece.

[0050] Secondly, the upper and lower pressure-holding fixtures, as well as the upper and lower pressure-holding fixtures, are manufactured using a two-shot injection molding process. This process reduces dimensional errors and ensures the stability of the pressure-holding dimensions.

[0051] Furthermore, the material of the upper pressure-holding position blends with the material of the upper contact portion, allowing them to fuse together. Similarly, the material of the lower pressure-holding position blends with the material of the lower contact portion, allowing them to fuse together. This design enhances the connection strength and effectively prevents separation between the upper pressure-holding position and the upper contact portion, or between the lower pressure-holding position and the lower contact portion.

[0052] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be included within the scope of the claims of the present invention.

Claims

1. A pressure-maintaining fixture, characterized in that: The invention comprises a pressure-maintaining upper seat (100) and a pressure-maintaining lower seat (200), wherein the pressure-maintaining upper seat (100) is detachably connected to the pressure-maintaining lower seat (200); the pressure-maintaining upper seat (100) has an upper seat pressure-maintaining position (120), the shape of the upper seat pressure-maintaining position (120) is adapted to the structure of one side of the workpiece, and the surface of the upper seat pressure-maintaining position (120) is provided with an upper seat contact portion (130), and the upper seat contact portion (130) is elastic; the pressure-maintaining lower seat (200) has a lower seat pressure-maintaining position (230), the shape of the lower seat pressure-maintaining position (230) is adapted to the structure of the other side of the workpiece, and the surface of the lower seat pressure-maintaining position (230) is provided with a lower seat contact portion (240), and the lower seat contact portion (240) is elastic.

2. The pressure-maintaining jig according to claim 1, characterized in that: The material used for the upper seat pressure-maintaining position (120) and the material used for the upper seat contact portion (130) are integrated with each other, and the material used for the lower seat pressure-maintaining position (230) and the material used for the lower seat contact portion (240) are integrated with each other.

3. The pressure-maintaining jig according to claim 1, characterized in that: A plurality of upper seat connection positions (121) are provided on the edge of the upper seat pressure-maintaining position (120), a plurality of upper seat connection portions (131) are provided on the edge of the upper seat contact portion (130), and the upper seat connection positions (121) and the upper seat connection portions (131) are welded one by one; a plurality of lower seat connection positions (231) are provided on the edge of the lower seat pressure-maintaining position (230), a plurality of lower seat connection portions (241) are provided on the edge of the lower seat contact portion (240), and the lower seat connection positions (231) and the lower seat connection portions (241) are welded one by one.

4. The pressure maintaining fixture according to any one of claims 1 to 3, characterized in that: The pressure-maintaining upper seat (100) comprises an upper seat body (110), and the upper seat pressure-maintaining position (120) is arranged on the inner side surface of the upper seat body (110).

5. The pressure maintaining fixture according to any one of claims 1 to 3, characterized in that: The pressure-retaining lower seat (200) comprises a lower seat body (210) and a lower seat panel (220), wherein the lower seat panel (220) is arranged on the inner side surface of the lower seat body (210), and the lower seat pressure-retaining position (230) is arranged on the surface of the lower seat panel (220).

6. The pressure-maintaining jig according to claim 5, characterized in that: The lower seat panel (220) is arranged on the inner side surface of the lower seat body (210) via a constant force structure, and the constant force structure includes several groups of constant force components (250).

7. The pressure-maintaining jig according to claim 6, characterized in that: The constant force assembly (250) comprises a constant force connecting member (251) and a constant force elastic member (252), one end of the constant force connecting member (251) passes through the lower seat panel (220) and is connected to the lower seat body (210), the constant force elastic member (252) is sleeved on the constant force connecting member (251), one end of the constant force elastic member (252) abuts against the lower seat panel (220), and the other end of the constant force elastic member (252) abuts against the lower seat body (210).

8. The pressure maintaining fixture according to any one of claims 1 to 3, characterized in that: The invention also includes a locking structure (300), wherein the locking structure (300) includes a locking assembly (310) and a locking member (320), wherein the locking assembly (310) is arranged on the upper seat locking position (111) of the pressure-maintaining upper seat (100), and the locking member (320) is arranged on the lower seat locking position (211) of the pressure-maintaining downward pressure, and the locking assembly (310) and the locking member (320) are detachably fastened.

9. The pressure-maintaining jig according to claim 8, characterized in that: The lock assembly (310) comprises a lock connection seat (311) and a lock hook member (312), wherein the lock connection seat (311) is arranged on the upper seat lock position (111), and the lock hook member (312) is hinged on the lock connection seat (311), and the lock hook member (312) is detachably fastened to the lock member (320).

10. The pressure maintaining jig according to claim 9, characterized in that: One end of the lock hook member (312) is a pressing portion (3121), and the other end of the lock hook member (312) is a lock hook portion (3122). A lock elastic member (314) is provided between the pressing portion (3121) and the lock connection seat (311), and the lock hook portion (3122) and the lock member (320) are detachably fastened.

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