Sandblasting fixture

Abstract

The utility model aims at providing a sand blasting clamp, including body, the body is equipped with the material placing groove which is adapted to the sheet workpiece, the body is silica gel material, when the sheet workpiece is embedded in the material placing groove, so that the body is wrapped up the sheet workpiece under the action of elasticity, the depth that the material placing groove is equipped with is greater than the thickness of sheet workpiece, a plurality of through holes are equipped in the material placing groove, both ends of each through hole are communicated with the inner bottom wall of material placing groove and the outside wall of body respectively, the body still is provided with the guide block, the guide block sets up in the material placing groove, still a plurality of fixed holes are equipped on the body, each fixed hole is located at the four corner positions of the body respectively, and each fixed hole surrounds the material placing groove together. Thus, prevent workpiece deformation, improve product pass rate and reduce workpiece rejection rate.

Description

Technical Field

[0001] This utility model relates to the technical field of metal processing, and in particular to a sandblasting fixture. Background Technology

[0002] In numerous fields such as machinery manufacturing, electronic component processing, and precision instrument production, sandblasting is an important surface treatment technology widely used to remove oxide layers, oil stains, and rust from workpiece surfaces, as well as to achieve surface roughening and beautification. For thin-sheet workpieces (such as metal sheets, ceramic sheets, and plastic sheets), the stable and damage-free fixation during sandblasting is crucial to ensuring sandblasting quality due to their thinness and poor overall rigidity. Currently, the industry commonly uses clamping structures with metal angles for fixing thin-sheet workpieces during sandblasting. These clamps, with angled gripping parts made of metal, use the gaps formed by the metal angles to clamp and position the two edges of the thin-sheet workpiece, thus maintaining a relatively fixed posture during sandblasting. From a structural perspective, metal angle clamps, thanks to the high structural strength inherent in the metal material, can meet the fixing requirements of thin workpieces under normal working conditions to a certain extent. They also have the advantages of simple manufacturing process and low cost, and therefore have been widely used in actual production.

[0003] However, existing sandblasting fixtures have the following shortcomings in practical use: In actual sandblasting operations, to achieve the desired surface treatment effect, high-pressure gas is usually used to drive abrasive materials (such as quartz sand, corundum sand, etc.) to be sprayed at high speed onto the surface of a thin workpiece. When the high-pressure gas carrying the abrasive impacts the surface of the thin workpiece, the workpiece is subjected to continuous impact force. Due to the relatively weak rigidity of the thin sheet itself, it will produce slight vibrations or displacement tendencies under the influence of impact force. The metal angles used to clamp the edges of the thin sheet are rigid contacts with the thin workpiece because the metal material itself is not elastic, and cannot buffer the slight vibrations or displacements of the thin sheet. In this case, during the vibration or displacement process, the edges of the thin workpiece will repeatedly and rigidly collide with the inner wall of the metal angle. This continuous rigid collision will cause plastic deformation of the edges and even the entire thin workpiece, which not only damages the shape accuracy of the thin sheet, but may also cause hidden damage such as cracks, significantly reducing the product qualification rate and causing unnecessary production cost losses for enterprises. In view of this, the sandblasting fixture of this application is proposed. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a sandblasting fixture to prevent workpiece deformation, thereby improving the product qualification rate and reducing the workpiece scrap rate.

[0005] The objective of this utility model is achieved through the following technical solution: A sandblasting fixture, comprising: The body has a material groove adapted to the thin sheet workpiece. The body is made of silicone material. When the thin sheet workpiece is embedded in the material groove, the body wraps around the thin sheet workpiece under elastic force.

[0006] Optionally, the depth of the material placement groove is greater than the thickness of the sheet workpiece.

[0007] Optionally, the material storage trough is provided with a plurality of through holes, and the two ends of each through hole are respectively connected to the inner bottom wall of the material storage trough and the outer side wall of the body.

[0008] Optionally, the main body is further provided with a guide block, which is disposed in the material feeding trough.

[0009] Optionally, the main body is further provided with a plurality of fixing holes, each fixing hole being located at one of the four corners of the main body, and all fixing holes together surrounding the material feeding trough.

[0010] Compared with the prior art, the present invention has at least the following advantages: This utility model discloses a sandblasting fixture that utilizes the elasticity of a silicone body to tightly enclose thin workpieces. The material inlet groove on the body is slightly smaller than the workpiece; after the workpiece is inserted, the inner wall of the groove elastically wraps around it, forming a soft contact that absorbs the continuous impact force during high-pressure sandblasting, effectively preventing workpiece deformation and ensuring dimensional accuracy. The depth of the inlet groove is greater than the workpiece thickness, and the inner wall near the groove opening conforms to the workpiece's curved shape, providing a stable, T-shaped clamping grip. Through holes within the groove allow gas to escape, ensuring a tight fit between the workpiece and the groove bottom, providing more comprehensive support. Guide blocks assist in rapid positioning, and fixing holes stabilize the fixture, further enhancing sandblasting stability. This design prevents workpiece deformation, improving product yield and reducing workpiece scrap rates. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of a sandblasting fixture according to one embodiment of the present invention; Figure 2This is a schematic diagram of the structure of a thin sheet workpiece embedded in a material placement groove according to one embodiment of the present invention; Figure 3 This is a schematic cross-sectional view of a thin sheet workpiece embedded in a material placement groove according to one embodiment of the present invention; Figure 4 for Figure 3 A magnified schematic diagram of the structure of part A in the diagram; Figure 5 This is a structural schematic diagram showing the position of the guide block according to one embodiment of the present invention.

[0013] Explanation of reference numerals in the attached figures: 1. Sandblasting fixture; 10. Body; 100. Material tray; 101. Through hole; 102. Guide block; 103. Fixing hole; 20. Thin sheet workpiece. Detailed Implementation

[0014] To facilitate understanding of this utility model, a more comprehensive description will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model.

[0015] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0016] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0017] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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 of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0018] like Figures 1 to 5 As shown, in one embodiment, a sandblasting fixture 1 includes a body 10, on which a material placement groove 100 adapted to a thin sheet workpiece 20 is provided. The body 10 is made of silicone material. When the thin sheet workpiece 20 is embedded in the material placement groove 100, the body 10 wraps around the thin sheet workpiece 20 under the action of elasticity.

[0019] It should be noted that the body 10 is made of elastic silicone material; a material placement groove 100 is provided on the body 10, and the shape of the material placement groove 100 is smaller than the shape of the thin workpiece 20. When the thin workpiece 20 is fitted into the material placement groove 100, the inner sidewalls of the material placement groove 100 are wrapped around the thin workpiece 20 under the elastic action of the silicone material, so that the thin workpiece 20 is relatively stuck into the material placement groove 100, thereby fixing the thin workpiece 20; in this state, the thin workpiece 20 and the clamp are in soft contact. Thus, when high-pressure gas carrying abrasive impacts the surface of the thin workpiece 20, the silicone clamp absorbs the continuous impact force on the thin workpiece 20, playing a buffering role for the thin workpiece 20, thereby preventing the thin workpiece 20 from deforming under continuous impact force, thus affecting the shape accuracy of the thin workpiece 20.

[0020] like Figures 2 to 4 As shown, in one embodiment, the depth of the material placement groove 100 is greater than the thickness of the sheet workpiece 20.

[0021] It should be noted that the depth of the material placement groove 100 is greater than the thickness of the sheet workpiece 20. Thus, when the sheet workpiece 20 is embedded in the material placement groove 100, the end of the inner sidewall of the material placement groove 100 near the groove opening will be higher than the sheet workpiece 20. Under the action of elasticity, this end of the inner sidewall of the material placement groove 100 near the groove opening protrudes relative to the upper surface of the sheet workpiece 20, thus adhering to the arc-shaped position between the upper surface and the side of the sheet workpiece 20. In this state, its cross-section will present a C-shaped posture, with both opposing inner sidewalls of the material placement groove 100 clamping the two sides of the sheet workpiece 20. This allows the material placement groove 100 to completely enclose the sheet workpiece 20.

[0022] like Figure 1 , Figure 5 As shown, in one embodiment, a plurality of through holes 101 are provided in the material storage tank 100, and the two ends of each through hole 101 are respectively connected to the inner bottom wall of the material storage tank 100 and the outer side wall of the body 10.

[0023] It should be noted that each through hole 101 is equidistantly distributed around the perimeter of the material storage groove 100, and each through hole 101 connects the inner bottom wall of the material storage groove 100 and the side of the body 10 away from the material storage groove 100. When the sheet workpiece 20 is initially embedded into the material storage groove 100 so that the inner walls of the material storage groove 100 surround the sheet workpiece 20, the sheet workpiece 20 and the inner walls of the material storage groove 100 are sealed together. This creates a gas-filled chamber between the sheet workpiece 20 and the inner bottom wall of the material storage groove 100. This gas prevents the sheet workpiece 20 from approaching the inner bottom wall of the material storage groove 100, thus preventing the body 10 from providing support for the sheet workpiece 20. However, the inner bottom wall of the material storage groove 100 has several through holes 101, which allow the gas in the chamber to be discharged into the external environment when the sheet workpiece 20 is in close contact with the inner bottom wall of the material storage groove 100. This allows the sheet workpiece 20 to fit tightly against the inner bottom wall of the material storage groove 100, thus enabling the body 10 to provide comprehensive support for the sheet workpiece 20.

[0024] like Figure 1 , Figure 3 , Figure 5 As shown, in one embodiment, the main body 10 is further provided with a guide block 102, which is disposed in the material trough 100.

[0025] It should be noted that there are two guide blocks 102, both of which are located on the inner bottom wall of the material storage trough 100 and at one end of the trough 100. Both guide blocks 102 are also convex relative to the inner bottom wall of the trough 100. Furthermore, corresponding insertion holes are also provided on one end of the sheet workpiece 20. This allows the worker to quickly identify the orientation of the sheet workpiece 20 when inserting it into the material storage trough 100, preventing deformation or bending during spraying due to incorrect insertion direction during efficient operation.

[0026] like Figures 1 to 2 , Figure 5 As shown, in one embodiment, the main body 10 is also provided with a plurality of fixing holes 103, each fixing hole 103 being located at one of the four corners of the main body 10, and each fixing hole 103 together surrounds the material trough 100.

[0027] It should be noted that the two ends of each fixing hole 103 are respectively connected to the two opposing sides of the body 10. Each fixing hole 103 can securely fix the body 10 to the workbench surface by screwing, so as to avoid the thin workpiece 20 and the body 10 being blown away under the impact of high pressure gas, thus affecting the sandblasting effect.

[0028] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A sandblasting fixture, characterized in that, include: The body has a material groove adapted to the thin sheet workpiece. The body is made of silicone material. When the thin sheet workpiece is embedded in the material groove, the body wraps around the thin sheet workpiece under elastic force.

2. The sandblasting fixture according to claim 1, characterized in that, The depth of the material placement groove is greater than the thickness of the thin sheet workpiece.

3. The sandblasting fixture according to claim 2, characterized in that, The material storage tank has several through holes, and the two ends of each through hole are respectively connected to the inner bottom wall of the material storage tank and the outer side wall of the main body.

4. The sandblasting fixture according to claim 3, characterized in that, The main body is also provided with a guide block, which is disposed in the material trough.

5. The sandblasting fixture according to claim 4, characterized in that, The main body is also provided with a number of fixing holes, each of which is located at one of the four corners of the main body and together surrounds the material trough.

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