Automatic sand blasting clamping device
The clamping mechanism with flexible support and limiting structures solves the problem of uneven rotation of the bracket, realizes uniform sandblasting and removal of oxide layer burrs on the bracket surface, and improves sandblasting efficiency.
Patent Information
- Application Number
- CN202520527367.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-25
AI Technical Summary
In existing automatic sandblasting devices, the support and clamping device are not fixed stably, resulting in uneven rotation of the support, poor sandblasting effect, and the support is prone to axial movement, causing uneven sandblasting.
The clamping mechanism adopts a flexible support structure and a limiting structure. The flexible support structure passes through the bracket and is sleeved on the output shaft. After release, it expands and abuts against the bracket. The limiting structure is inserted from the mesh of the bracket. The clamping mechanism is fixed to the bracket to avoid axial movement and eccentric movement during the rotation of the bracket, and to achieve uniform sandblasting on the surface of the bracket.
The uniform sandblasting of the support surface was achieved, effectively removing the oxide layer and burrs, thus improving the sandblasting efficiency and effect.
Smart Images
Figure CN223889761U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to an automatic sandblasting clamping device. Background Technology
[0002] Traditional automatic sandblasting typically involves mounting a support frame onto a support rod, which is then placed on a pulley. The rotation of the pulley drives the support frame to rotate, ensuring that its surface receives even impact from the sand. However, due to the clearance between the pulley and the support frame, a 1:1 torque transmission efficiency cannot be guaranteed, leading to uneven rotation of the support frame and poor sandblasting results, with some areas being over- or under-blasted. Furthermore, the lack of axial restraint on the support rod allows the support frame to easily move along its axis under the impact of the sand. If the support frame moves into the gap, torque cannot be transmitted, resulting in a loss of power input and uneven rotation of the support frame. This leads to uneven sandblasting, incomplete removal of burrs and oxide layers, poor sandblasting effect, and reduced sandblasting efficiency.
[0003] Therefore, there is an urgent need for an automatic sandblasting clamping device to solve the above-mentioned technical problems. Utility Model Content
[0004] The purpose of this utility model is to provide an automatic sandblasting clamping device, which aims to solve the problem in the prior art that the bracket and clamping device are not fixed stably, resulting in uneven rotation of the bracket and poor sandblasting effect. This automatic sandblasting clamping device avoids axial movement and eccentric movement during the rotation of the bracket, and can uniformly sandblast the surface of the bracket and uniformly remove the surface oxide layer and burrs.
[0005] To achieve this objective, the present invention adopts the following technical solution:
[0006] An automatic sandblasting clamping device includes:
[0007] A driving mechanism includes a driving component. A bracket is sleeved on the output shaft of the driving component via a clamping mechanism. The clamping mechanism includes a flexible support structure and a limiting structure protruding from the flexible support structure. In a stretched state, the flexible support structure can pass through the bracket and be sleeved on the output shaft. In a released state, the flexible support structure expands and abuts against the bracket, and the limiting structure can be inserted from the mesh of the bracket. Both ends of the flexible support structure are fixedly connected to the output shaft.
[0008] A sandblasting mechanism is provided, which is spaced apart on one side of the output shaft. The sandblasting mechanism is movable along the axial direction of the output shaft to perform sandblasting on the bracket.
[0009] In some possible implementations, the flexible support structure is configured as a flexible helical rod, the limiting structure is configured as a protrusion, and a plurality of the protrusions are spaced apart on the helix of the flexible helical rod, the shape of the protrusions matching the shape of the mesh.
[0010] In some possible implementations, each of the flexible support structures is provided with 3 to 9 of the limiting structures.
[0011] In some possible implementations, multiple flexible support structures are provided, and the multiple flexible support structures are evenly distributed along the axial direction of the output shaft, and the flexible support structures form point contact with the bracket.
[0012] In some possible implementations, the flexible support structure is provided in 2 to 10 units.
[0013] In some possible implementations, both ends of the flexible support structure are fixedly connected to the output shaft via connecting rods.
[0014] In some possible implementations, the connecting rod is connected to the output shaft via a fixing structure; the fixing structure is a silicone sheet, and both the connecting rod and the output shaft are inserted into the silicone sheet; or, the fixing structure is a connecting wire, and the connecting rod and the output shaft are bound together by the connecting wire.
[0015] In some possible implementations, the drive mechanism further includes a support base disposed at the end of the output shaft, the support base being detachably connected to the output shaft.
[0016] In some possible implementations, the sandblasting mechanism includes a transmission assembly and a nozzle assembly that is pulverizedly connected to the transmission assembly. The nozzle assembly includes two nozzles that are connected to the transmission assembly via a connecting frame and are symmetrically arranged relative to the connecting frame.
[0017] In some possible implementations, the angle α between the direction of sand discharge from the nozzle and the radial direction of the output shaft is 30°-90°.
[0018] The beneficial effects of this utility model are:
[0019] The automatic sandblasting clamping device provided by this utility model has a clamping mechanism. A flexible support structure passes through the bracket and is sleeved on the output shaft. After release, the flexible support structure expands and abuts against the bracket. The limiting structure is inserted from the mesh of the bracket. The clamping mechanism and the bracket are tightly fixed. Both ends of the flexible support structure are fixed to the output shaft. When the output shaft of the driving component rotates, it drives the clamping mechanism and the bracket to rotate. Because the bracket is fixed on the output shaft and the bracket is coaxial with the output shaft, axial movement and eccentric movement during the rotation of the bracket are avoided. Thus, the bracket surface can be sandblasted evenly to uniformly remove the surface oxide layer and burrs. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the automatic sandblasting clamping device provided in this embodiment of the utility model;
[0021] Figure 2 This is a partial structural schematic diagram of the flexible support structure provided in this embodiment of the utility model;
[0022] Figure 3 This is a schematic diagram of the flexible support structure, output shaft, and bracket after assembly, as provided in this embodiment of the utility model.
[0023] Figure 4 This is a schematic diagram of the limiting structure and the bracket after they are in contact, as provided in this embodiment of the utility model.
[0024] Figure 5 This is an assembly diagram of the output shaft, connecting rod, and fixing structure provided in an embodiment of this utility model.
[0025] In the picture:
[0026] 110. Drive component; 111. Output shaft; 120. Support base; 200. Bracket; 310. Flexible support structure; 320. Limiting structure; 330. Fixing structure; 340. Connecting rod; 410. Transmission assembly; 421. Nozzle; 430. Connecting frame; 440. Adjusting disc. Detailed Implementation
[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0028] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" 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 utility model based on the specific circumstances.
[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0030] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0031] This embodiment provides an automatic sandblasting clamping device, which aims to solve the problem in the prior art where the bracket and clamping device are not fixed stably, resulting in uneven rotation of the bracket and poor sandblasting effect. The automatic sandblasting clamping device avoids axial movement and eccentric movement during the rotation of the bracket, and can uniformly sandblast the surface of the bracket and uniformly remove the surface oxide layer and burrs.
[0032] like Figures 1 to 5As shown, the automatic sandblasting clamping device includes a drive mechanism and a sandblasting mechanism. The drive mechanism includes a drive component 110, which can be a motor. The bracket 200 is sleeved on the output shaft 111 of the drive component 110 via the clamping mechanism. The clamping mechanism includes a flexible support structure 310 and a limiting structure 320 protruding from the flexible support structure 310. In the stretched state, the flexible support structure 310 can pass through the bracket 200 and be sleeved on the output shaft 111. In the released state, the flexible support structure 310 expands and abuts against the bracket 200, and the limiting structure 320 can be inserted from the mesh of the bracket 200. Both ends of the flexible support structure 310 are fixedly connected to the output shaft 111. The sandblasting mechanism is spaced apart on one side of the output shaft 111 and can move along the axial direction of the output shaft 111 to perform sandblasting treatment on the bracket 200.
[0033] The aforementioned automatic sandblasting clamping device, through the setting of a clamping mechanism, has a flexible support structure 310 passing through the bracket 200 and sleeved on the output shaft 111. After release, the flexible support structure 310 expands and abuts against the bracket 200, and the limiting structure 320 is inserted from the mesh of the bracket 200. The clamping mechanism and the bracket 200 are tightly fixed together. Both ends of the flexible support structure 310 are fixed to the output shaft 111. When the output shaft 111 of the driving member 110 rotates, it drives the clamping mechanism and the bracket 200 to rotate. Because the bracket 200 is fixed on the output shaft 111 and the bracket 200 and the output shaft 111 are coaxially arranged, axial movement and eccentric movement of the bracket 200 during rotation are avoided. Thus, the surface of the bracket 200 can be uniformly sandblasted to uniformly remove the surface oxide layer and burrs.
[0034] Preferably, the flexible support structure 310 is configured as a flexible helical rod, and the limiting structure 320 is configured as a protrusion. Multiple protrusions are spaced apart along the helix of the flexible helical rod, and the shape of the protrusions matches the shape of the mesh. This configuration allows the protrusions to fit through the mesh of the support 200 without causing the mesh of the support 200 to expand, thus limiting the axial and radial movement of the support 200. Optionally, each flexible support structure 310 is provided with 3 to 9 limiting structures 320. In implementation, the specific number of limiting structures 320 is related to the mesh density of the support 200. If the mesh density is high, the number of limiting structures 320 can be appropriately increased; if the mesh density is low, the number of limiting structures 320 can be appropriately reduced, and so on, depending on the needs.
[0035] In this embodiment, multiple flexible support structures 310 are provided, and these multiple flexible support structures 310 are evenly distributed along the axial direction of the output shaft 111 to provide sufficient support force to the bracket 200. To reduce the contact area between the flexible support structure 310 and the bracket 200, and to reduce the influence of the flexible support structure 310 on the shape of the bracket 200, the flexible support structure 310 forms point contact with the bracket 200. Optionally, 2 to 10 flexible support structures 310 are provided. In practice, the specific number of flexible support structures 310 is related to the length of the bracket 200.
[0036] Preferably, both ends of the flexible support structure 310 are fixedly connected to the output shaft 111 via connecting rods 340. The connecting rods 340 can extend the length of both ends of the flexible support structure 310, thereby improving the ease of connection between the flexible support structure 310 and the output shaft 111.
[0037] Furthermore, the connecting rod 340 is connected to the output shaft 111 via a fixing structure 330; the fixing structure 330 is a silicone sheet, and both the connecting rod 340 and the output shaft 111 are inserted into the silicone sheet; alternatively, the fixing structure 330 is a connecting thread, and the connecting rod 340 and the output shaft 111 are bound together by the connecting thread. The appropriate method can be selected as needed during implementation.
[0038] In this embodiment, the drive mechanism further includes a support base 120, which is disposed at the end of the output shaft 111 and is detachably connected to the output shaft 111. After the bracket 200 is sleeved on the output shaft 111 of the drive member 110 via a clamping mechanism, the support base 120 is installed at the end of the output shaft 111 to prevent the bracket 200 from falling off the output shaft 111 during rotation. Optionally, the support base 120 includes a cylindrical portion and a conical portion connected to each other, with the small end of the conical portion disposed away from the cylindrical portion, and the conical portion sleeved on the output shaft 111.
[0039] Optionally, the sandblasting mechanism includes a transmission assembly 410 and a nozzle assembly drivenly connected to the transmission assembly 410. The nozzle assembly includes two nozzles 421, which are connected to the transmission assembly 410 via a connecting frame 430 and are symmetrically arranged relative to the connecting frame 430. In use, the transmission assembly 410 drives the nozzle assembly to move axially along the output shaft 111 of the drive member 110 to perform sandblasting on the bracket 200. The transmission assembly 410 can be an electric push rod mechanism, a linear motor mechanism, or a cylinder mechanism, etc. Of course, other forms of transmission structures are also possible, as long as they can achieve the movement of the nozzle assembly.
[0040] In this embodiment, the connecting frame 430 includes a connecting rod and a supporting rod arranged perpendicularly to each other. The end of the connecting rod away from the supporting rod is connected to the transmission assembly 410, and the other end of the connecting rod is connected to the middle part of the supporting rod. A nozzle 421 is installed at each end of the supporting rod. Optionally, an adjusting disc 440 is provided at both ends of the supporting rod. The adjusting disc 440 is provided with a scale value, which can be used to adjust the sandblasting angle of the nozzle 421.
[0041] Preferably, the angle α between the sand discharge direction of nozzle 421 and the radial direction of output shaft 111 is 30°-90°. This ensures that the sand particles sprayed from nozzle 421 not only generate a certain removal force, but also reduce the impact on support 200, ensuring uniform surface treatment of support 200 and improving operational accuracy.
[0042] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. An automatic sandblasting clamping device, characterized in that, include: The driving mechanism includes a driving member (110), and a bracket (200) is sleeved on the output shaft (111) of the driving member (110) through a clamping mechanism. The clamping mechanism includes a flexible support structure (310) and a limiting structure (320) protruding from the flexible support structure (310). In the stretched state, the flexible support structure (310) can pass through the bracket (200) and be sleeved on the output shaft (111). In the released state, the flexible support structure (310) expands and abuts against the bracket (200), and the limiting structure (320) can be inserted from the mesh of the bracket (200). Both ends of the flexible support structure (310) are fixedly connected to the output shaft (111). A sandblasting mechanism is provided, which is spaced apart on one side of the output shaft (111). The sandblasting mechanism is movable along the axial direction of the output shaft (111) to perform sandblasting on the bracket (200).
2. The automatic sandblasting clamping device according to claim 1, characterized in that, The flexible support structure (310) is configured as a flexible spiral rod, and the limiting structure (320) is configured as a protrusion. A plurality of the protrusions are spaced apart on the spiral line of the flexible spiral rod, and the shape of the protrusion matches the shape of the mesh.
3. The automatic sandblasting clamping device according to claim 2, characterized in that, Each of the flexible support structures (310) is provided with 3 to 9 of the limiting structures (320).
4. The automatic sandblasting clamping device according to claim 1, characterized in that, Multiple flexible support structures (310) are provided, and the multiple flexible support structures (310) are evenly distributed along the axial direction of the output shaft (111), and the flexible support structures (310) form point contact with the bracket (200).
5. The automatic sandblasting clamping device according to claim 4, characterized in that, The flexible support structure (310) is provided in 2 to 10 units.
6. The automatic sandblasting clamping device according to claim 1, characterized in that, Both ends of the flexible support structure (310) are fixedly connected to the output shaft (111) via connecting rods (340).
7. The automatic sandblasting clamping device according to claim 6, characterized in that, The connecting rod (340) is connected to the output shaft (111) through a fixing structure (330); the fixing structure (330) is a silicone sheet, and the connecting rod (340) and the output shaft (111) are both inserted into the silicone sheet; or, the fixing structure (330) is a connecting wire, and the connecting rod (340) and the output shaft (111) are bound together by the connecting wire.
8. The automatic sandblasting clamping device according to claim 1, characterized in that, The drive mechanism also includes a support base (120), which is disposed at the end of the output shaft (111) and is detachably connected to the output shaft (111).
9. The automatic sandblasting clamping device according to claim 1, characterized in that, The sandblasting mechanism includes a transmission assembly (410) and a nozzle assembly that is connected to the transmission assembly (410). The nozzle assembly includes two nozzles (421), which are connected to the transmission assembly (410) via a connecting frame (430) and are symmetrically arranged relative to the connecting frame (430).
10. The automatic sandblasting clamping device according to claim 9, characterized in that, The angle α between the sand discharge direction of the nozzle (421) and the radial direction of the output shaft (111) is 30°-90°.