A sand blasting jig for machining

Abstract

The utility model discloses a sand blasting clamp for machining relates to sand blasting auxiliary equipment technical field. The clamp includes rotatable base and rotatable clamping device on base, and clamping device contains rotating frame, clamping arm, chuck and drive arrangement. Drive arrangement can drive clamping arm movement to clamp work piece, and the rotation structure of rotating frame and base can realize work piece multi -angle sand blasting. The utility model discloses through the collaborative setting of multiple clamping devices, can carry out stable clamping to multiple work pieces simultaneously, and combines the double rotation function of base and rotating frame, can flexibly adjust the sand blasting angle and position of work piece, has improved the efficiency and uniformity of sand blasting processing significantly. Its compact and reasonable structure design, convenient operation is applicable to the sand blasting treatment of multiple specifications work pieces, has outstanding practicality and popularization value.

Description

Technical Field

[0001] This utility model relates to the technical field of sandblasting auxiliary equipment, specifically to a sandblasting fixture for machining. Background Technology

[0002] Sandblasting is a common surface treatment process in machining. It uses high-speed jets of abrasive to impact and cut the surface of a workpiece, removing oxide scale, rust, oil, or achieving a certain surface roughness. Sandblasting fixtures, as important auxiliary equipment in sandblasting, are used to firmly hold the workpiece for the sandblasting operation.

[0003] Currently, existing sandblasting fixtures have some shortcomings. Some fixtures can only hold a single workpiece, resulting in low processing efficiency; some fixtures can hold multiple workpieces, but it is difficult to flexibly adjust the posture of the workpieces, leading to uneven sandblasting of different parts of the workpiece and affecting the processing quality; and some fixtures have complex structures, are inconvenient to operate, and have poor applicability.

[0004] To address the aforementioned problems, this utility model proposes a sandblasting fixture for machining. This fixture can simultaneously hold multiple workpieces and flexibly adjust the posture of the workpieces, thereby improving the efficiency and quality of sandblasting. Utility Model Content

[0005] This utility model aims to solve the above-mentioned technical problems by providing a sandblasting fixture for machining.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0007] A sandblasting fixture for machining includes a rotatable base and multiple rotatable clamping devices on the base; the clamping device includes a rotating frame rotatably connected to the base, at least three sets of clamping arms are hinged to the upper end of the rotating frame, and chucks are installed at the upper ends of the clamping arms; a driving device for driving the clamping arms to move and clamp the workpiece is installed inside the rotating frame.

[0008] Preferably, the driving device includes an electric telescopic rod fixedly installed in the rotating frame, the telescopic end of the electric telescopic rod is equipped with a guide plate, and multiple sets of connecting arms are hinged on the guide plate, with the upper end of the connecting arm hinged to the middle of the clamping arm.

[0009] Preferably, the rotating frame has movable holes for use with the connecting arm.

[0010] Preferably, the rotating frame is provided with multiple sets of guide columns, and the guide columns penetrate the guide disk to achieve the guiding function.

[0011] Preferably, a rotating shaft is installed at the lower end of the rotating frame, and the rotating shaft is connected to the base via a bearing.

[0012] Preferably, a rollable pulley is mounted on the lower bearing of the rotating shaft, and a drive shaft is mounted on the upper end of the base.

[0013] Preferably, the upper end of the drive shaft is connected to a drive motor, and the plurality of pulleys are connected to an external drive motor via belts.

[0014] With the above structure, this utility model has the following advantages:

[0015] 1. This utility model, by setting up multiple sets of clamping devices, can simultaneously clamp multiple workpieces for sandblasting, effectively improving processing efficiency.

[0016] 2. The rotating frame in the clamping device can rotate relative to the base, and the base itself can also rotate, which can flexibly adjust the posture of the workpiece, so that all parts of the workpiece can be uniformly sandblasted, ensuring the processing quality.

[0017] 3. The drive device uses an electric telescopic rod to drive the guide plate and the connecting arm to move, thereby driving the clamping arm to clamp or release the workpiece. It is convenient to operate and the clamping is firm and reliable.

[0018] 4. The movable holes on the rotating frame provide movement space for the connecting arm, and the guide column guides the movement of the guide plate, ensuring the stability of the drive device.

[0019] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the 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.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the clamping device of this utility model;

[0023] Figure 3 This is a cross-sectional view of point AA of this utility model;

[0024] Figure 4This is a schematic diagram of the installation of this utility model in a sandblasting machine.

[0025] As shown in the figure: 1. Base; 2. Clamping device; 201. Rotating frame; 202. Clamping arm; 203. Chuck; 3. Drive device; 301. Rotating shaft; 302. Guide plate; 303. Linking arm; 4. Movable hole; 5. Guide column; 6. Pulley; 7. Drive shaft. Detailed Implementation

[0026] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0027] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" 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 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 application according to the specific circumstances.

[0028] The present invention will now be described in further detail in conjunction with the full text.

[0029] Combined with appendix Figures 1-4 A sandblasting fixture for machining includes a rotatable base 1 and multiple rotatable clamping devices 2 on the base 1. The clamping devices 2 are used to clamp the workpiece, and the rotation of the base 1 and the rotation of the clamping devices 2 can adjust the posture of the workpiece.

[0030] In specific implementation of this utility model, such as Figure 1 and Figure 2 As shown. The clamping device 2 includes a rotating frame 201 rotatably connected to the base 1. At least three sets of clamping arms 202 are hinged to the upper end of the rotating frame 201, and chucks 203 are mounted on the upper ends of the clamping arms 202. The at least three sets of clamping arms 202 and chucks 203 cooperate with each other. The chucks 203 can be made of a suitable material (such as rubber to avoid damaging the workpiece surface during clamping) according to the shape of the workpiece, forming a stable clamping effect on the workpiece from multiple directions, preventing displacement of the workpiece due to impact force during sandblasting. The workpiece can be clamped from multiple directions, ensuring clamping stability.

[0031] In specific implementation of this utility model, such as Figures 1-3As shown, a drive device 3 is installed inside the rotating frame 201 to drive the clamping arm 202 to move and clamp the workpiece. The drive device 3 includes an electric telescopic rod fixedly installed inside the rotating frame 201. A guide plate 302 is installed at the telescopic end of the electric telescopic rod. Multiple sets of connecting arms 303 are hinged to the guide plate 302, and the upper end of the connecting arms 303 is hinged to the middle of the clamping arm 202. When the electric telescopic rod extends or retracts, it drives the guide plate 302 to move up and down. The guide plate 302 drives the clamping arm 202 to rotate around the hinge point through the connecting arms 303, thereby realizing the clamping or releasing of the workpiece by the chuck 203.

[0032] In a specific implementation of this utility model, the rotating frame 201 is provided with an movable hole 4 for use with the connecting arm 303. The movable hole 4 provides space for the movement of the connecting arm 303 and avoids interference between the connecting arm 303 and the rotating frame 201.

[0033] In a specific implementation of this utility model, the rotating frame 201 is provided with multiple sets of guide columns 5, and the guide columns 5 penetrate the guide disk 302 to achieve a guiding function, ensuring that the guide disk 302 will not deviate during the movement, thereby improving the stability of the drive device 3.

[0034] In a specific implementation of this utility model, a rotating shaft 301 is installed at the lower end of the rotating frame 201. The rotating shaft 301 is connected to the base 1 through a bearing, so that the rotating frame 201 can rotate flexibly relative to the base 1.

[0035] In a specific implementation of this invention, a rolling pulley 6 is mounted on the lower bearing of the rotating shaft 301, and a drive shaft 7 is mounted on the upper end of the base 1. A drive motor is connected to the upper end of the drive shaft 7, and multiple pulleys 6 are connected to an external drive motor via belts. When the external drive motor operates, it drives the pulleys 6 to rotate via belts, thereby rotating the rotating shaft 301 and the rotating frame 201, achieving workpiece posture adjustment. Simultaneously, the drive motor connected to the drive shaft 7 can drive the base 1 to rotate, further expanding the workpiece adjustment range.

[0036] Both the drive motor and the electric telescopic pole are existing technologies and will not be elaborated upon further.

[0037] Working principle: During use, the workpiece to be processed is placed between the chucks 203. The electric telescopic rod is activated, causing the guide plate 302 to move downwards. The guide plate 302, through the connecting arm 303, drives the clamping arm 202 to rotate around the hinge point, thus clamping the workpiece with the chucks 203. Then, depending on the sandblasting requirements, an external drive motor is activated, driving the pulley 6 via a belt to rotate, which in turn drives the rotating frame 201 to rotate, adjusting the workpiece angle. Alternatively, the drive motor connected to the drive shaft 7 can be activated to rotate the base 1, further adjusting the workpiece position. After sandblasting is complete, the electric telescopic rod is retracted, causing the guide plate 302 to move upwards, releasing the workpiece from the clamping arm 202 and chucks 203. The processed workpiece can then be removed.

[0038] This invention has a high-efficiency batch processing capability: by setting multiple clamping devices on the base, multiple workpieces can be clamped at the same time for sandblasting, which greatly reduces the number of workpiece loading and unloading times and significantly increases the processing quantity per unit time. It is especially suitable for batch production scenarios and can effectively reduce the time and labor costs of enterprises.

[0039] Multi-angle uniform sandblasting ensures uniform sandblasting: The base is rotatable, and the rotating frame of each clamping device can rotate independently, forming a dual rotation adjustment structure. This structure allows the workpiece to flexibly adjust its posture within a 360° range, ensuring that all surfaces and corners of the workpiece are uniformly sandblasted. This completely solves the problem of sandblasting dead angles caused by the fixed posture of traditional fixtures, and significantly improves the consistency of workpiece surface treatment quality.

[0040] Stable and reliable drive method: Utilizing an electric telescopic rod as the core component of the drive device, it provides a stable and adjustable clamping force compared to manual drive, avoiding insecure clamping or workpiece damage caused by human error. Compared to pneumatic drive, it is not limited by air source and can work stably under various working conditions, making it more widely applicable. Furthermore, electric drive offers rapid response and can achieve automated operation through an electrical control system, further improving processing efficiency.

[0041] Structural stability and durability: The movable holes on the rotating frame provide ample movement space for the connecting arm, preventing mechanical interference between the connecting arm and the rotating frame and ensuring smooth arm movement; multiple sets of guide posts pass through the guide plate, precisely limiting its movement trajectory and preventing deviation or wobbling during operation, thus ensuring the stability of the drive unit. Furthermore, the rotating shaft and base are connected by bearings, and the pulley and rotating shaft are also mounted with bearings, both reducing frictional wear on moving parts and extending the service life of the clamp.

[0042] Easy to operate and highly adaptable: The clamping and releasing of the clamping arms can be achieved by extending and retracting the electric telescopic rod, making the operation simple and intuitive and reducing the skill requirements of the operators; the design of at least three sets of clamping arms can adapt to the clamping needs of workpieces of different shapes and sizes, eliminating the need for frequent replacement of clamping accessories and improving the versatility of the equipment.

[0043] The present invention and its embodiments have been described above. This description is not restrictive, and the embodiments shown throughout the text are only one of the embodiments of the present invention. The actual structure is not limited to this. In conclusion, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. A sandblasting fixture for machining, characterized in that, It includes a rotatable base (1) and multiple rotatable clamping devices (2) on the base; The clamping device (2) includes a rotating frame (201) that is rotatably connected to the base (1). At least three sets of clamping arms (202) are hinged to the upper end of the rotating frame (201), and clamping heads (203) are installed on the upper end of the clamping arms (202). The rotating frame (201) is equipped with a drive device (3) that drives the clamping arm (202) to move and clamp the workpiece.

2. The sandblasting fixture for machining according to claim 1, characterized in that: The drive device (3) includes an electric telescopic rod fixedly installed in the rotating frame (201). The telescopic end of the electric telescopic rod is equipped with a guide plate (302). Multiple sets of connecting arms (303) are hinged on the guide plate (302), and the upper end of the connecting arm (303) is hinged to the middle of the clamping arm (202).

3. The sandblasting fixture for machining according to claim 2, characterized in that: The rotating frame (201) has an movable hole (4) for use with the connecting arm (303).

4. The sandblasting fixture for machining according to claim 2, characterized in that: The rotating frame (201) is provided with multiple sets of guide columns (5), and the guide columns (5) pass through the guide plate (302) to achieve the guiding function.

5. The sandblasting fixture for machining according to claim 2, characterized in that: The lower end of the rotating frame (201) is equipped with a rotating shaft (301), which is connected to the base (1) via a bearing.

6. The sandblasting fixture for machining according to claim 5, characterized in that: The lower end bearing of the rotating shaft (301) is equipped with a rollable pulley (6), and the upper end of the base (1) is equipped with a drive shaft (7).

7. The sandblasting fixture for machining according to claim 6, characterized in that: The upper end of the drive shaft (7) is connected to a drive motor, and the multiple pulleys (6) are connected to an external drive motor via belts.

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