Polishing and clamping device for U-shaped iron
By designing a U-iron grinding clamping device using telescopic cylinders, linkage connecting plates and telescopic columns, the problem of insufficient clamping force and stability of U-iron in the prior art is solved, and stable clamping and relaxation of U-iron of different sizes and sizes is achieved, and the scope of use is increased and the damage of threaded slip wire is avoided.
Patent Information
- Application Number
- CN202421790007.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-26
AI Technical Summary
In the prior art, when grinding the U-shaped iron in the micro speaker, the clamping force and stability of the clamping fixture are low, which easily leads to damage to the threaded slippers, and has a small adjustable range, making it difficult to adapt to U-shaped iron of different sizes and sizes.
A grinding and clamping device for U iron is designed, using the linkage between the telescopic cylinder driving connecting plate and the telescopic column. Through the combination of the sliding connecting seat and the rotating connecting shaft, stable clamping and relaxation of U iron is achieved, and clamping force and stability are increased through the spring.
This device can effectively clamp and fix U iron of different sizes and sizes, which increases the scope of use and avoids the problems of thread slip wire damage and reduced clamping stability caused by small-size vise.
Smart Images
Figure CN222818655U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of micro-speaker technology, in particular to a grinding and clamping device for U iron. Background Art
[0002] Speakers, commonly known as "horns", are a very commonly used electroacoustic transducer device, which is a transducer device that converts electrical signals into acoustic signals. The performance of the speaker has a great impact on the sound quality. The speaker is the weakest device in the audio equipment, but it is the most important component for the sound effect. There are many types of speakers, and the prices vary greatly. Audio power vibrates the cone or diaphragm through electromagnetic, piezoelectric or electrostatic effects and resonates (resonates) with the surrounding air to produce sound. Micro speakers refer to smaller speakers, which are usually used in smart home devices, such as smart speakers, smart doorbells, etc. It has the characteristics of being small and light, low power consumption, and high sound quality, and can provide clear and high-quality sound output for smart home devices.
[0003] A U-shaped iron is arranged inside the micro speaker, and the U-shaped iron needs to go through a grinding step during its production. Since the U-shaped iron used in the micro speaker is small in size, it needs to be clamped and fixed during grinding. Most of the existing clamping and fixing devices are carried out by means of a vise. Since the U-shaped iron is small in size, the required vise size is also small. The clamping force and stability of the small-sized vise are low during use, and long-term use may easily cause thread stripping and damage, and the adjustable range is small. Therefore, a grinding and clamping device for the U-iron used in the micro speaker is needed to solve the above-mentioned problems. Utility Model Content
[0004] The utility model aims to solve the shortcomings in the prior art and proposes a U-iron grinding and clamping device.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A grinding and clamping device for a U iron comprises a fixing frame, a fixing plate is fixedly connected to the middle part of the upper end of the fixing frame, the left and right sides of the fixing plate are fixedly connected to the fixed end of the telescopic cylinder, a top plate is arranged on the left and right sides of the upper end of the fixing frame, a first connecting seat is arranged on the outer side of the bottom end of the top plate, a second connecting seat is arranged on the inner side of the bottom end of the top plate, a telescopic column and a connecting plate are arranged on the middle part of the bottom end of the top plate, a connecting rod is arranged on the front and rear sides of the connecting plate, the middle parts of the first connecting seat and the second connecting seat are respectively slidably connected with the telescopic column, the front and rear sides of the telescopic column are respectively rotatably connected to the front and rear sides of the left upper end of the connecting plate, the front and rear parts of the right upper end of the connecting plate are respectively rotatably connected to one end of the connecting rod, and the other end of the connecting rod is respectively rotatably connected to the front and rear sides of the second connecting seat;
[0007] Through the above technical solution, when the telescopic cylinder is extended, the bottom end of the connecting plate tends to move outward, causing the telescopic column to contract inward. When the telescopic cylinder contracts, the bottom end of the connecting plate tends to move inward, causing the telescopic column to extend outward, clamping and relaxing the U-iron. The U-iron can be stably clamped and fixed, and U-irons of different sizes and dimensions can be fixed, thereby increasing the scope of use.
[0008] Furthermore, the telescopic ends of the telescopic cylinder are fixedly connected to mounting seats, and the inner outer ends of the mounting seats are rotatably connected to the front and rear sides of the bottom end of the connecting plate respectively;
[0009] Through the above technical solution, the connecting plate is driven to move by the extension and retraction of the telescopic cylinder, and at the same time, it is convenient to connect the telescopic end of the telescopic cylinder with the connecting plate.
[0010] Further, the middle part of the front and rear sides of the telescopic column is provided with a first connecting shaft, the upper part of the right end of the front and rear sides of the connecting plate is provided with a second connecting shaft, the front and rear ends of the first connecting seat are provided with a third connecting shaft, and the bottom ends of the front and rear sides of the connecting plate are provided with a fourth connecting shaft;
[0011] Through the above technical solution, the rotational connection between the telescopic column, the connecting plate, the first connecting seat and the mounting seat is installed.
[0012] Furthermore, a fixing hole is provided at the upper portion of the outer side of the top plate, and a circular slide groove is provided at the middle portion of the first connecting seat and the second connecting seat;
[0013] Through the above technical solution, the fixing hole facilitates the connection and fixation between the top plate and the fixing frame, and the circular slide groove facilitates the sliding and extension of the telescopic column.
[0014] Furthermore, a first fixing sleeve is fixedly connected to the outer side of the bottom end of the connecting plate, a second fixing sleeve is fixedly connected to the bottom of the inner left and right ends of the fixing frame, and a spring is provided between the first fixing sleeve and the second fixing sleeve;
[0015] Through the above technical solution, by arranging a spring between the fixing frame and the connecting plate, when the telescopic column is clamped, the telescopic cylinder is in a contracted state, and the connecting plate is pushed by the spring elastic force, thereby increasing the clamping strength and stability.
[0016] Furthermore, the outer ends of the first connecting shaft, the second connecting shaft and the third connecting shaft are all threadedly connected with locking caps;
[0017] Through the above technical solution, it is convenient to limit the first connecting shaft, the second connecting shaft and the third connecting shaft at one end outside, which plays a limiting role and prevents the components from falling off.
[0018] Furthermore, the inner end of the telescopic column is threadedly connected to one end of the threaded rod, and the other end of the threaded rod is fixedly connected to a rubber pad;
[0019] Through the above technical solution, by threading the threaded rod at the inner end of the telescopic column, the clamping distance between the telescopic columns can be adjusted to increase the clamping range, and the U iron can be prevented from being scratched by the provision of the rubber pad.
[0020] The utility model has the following beneficial effects:
[0021] The cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame, and the cam is pressed against the support frame,
[0022] 2. In the utility model, firstly, by threading a threaded rod at the inner end of the telescopic column, the clamping distance between the telescopic columns can be adjusted to increase the clamping range. Then, by arranging a spring between the fixing frame and the connecting plate, when the telescopic column is clamped, the telescopic cylinder is in a contracted state, and the connecting plate is pushed by the spring elastic force to increase the clamping strength and stability. Secondly, the linkage performance between the connecting plate and the connecting rod is convenient for operation. Finally, by driving the telescopic cylinder, the driving convenience of the device is increased. At the same time, the device as a whole is easy to assemble and disassemble, and the maintenance process is simple. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is a schematic diagram of the front three-dimensional structure of a U-iron grinding and clamping device proposed by the utility model;
[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of a top plate, telescopic column, connecting plate, connecting rod and telescopic cylinder of a U-iron grinding and clamping device proposed by the utility model;
[0025] Figure 3 This is a schematic diagram of the exploded three-dimensional structure of a top plate, a telescopic column, a connecting plate and a connecting rod of a U-iron grinding and clamping device proposed by the utility model;
[0026] Figure 4 This is a schematic diagram of the three-dimensional structure of a connecting plate of a U-iron grinding and clamping device proposed by the utility model;
[0027] Figure 5 This is a schematic diagram of the top plate three-dimensional structure of a U-iron grinding and clamping device proposed by the utility model;
[0028] Figure 6 The utility model provides a schematic diagram of the three-dimensional structure of a telescopic column of a U-iron grinding and clamping device.
[0029] Legend:
[0030] 1. Fixed frame; 2. Fixed plate; 3. Telescopic cylinder; 4. Top plate; 5. First connecting seat; 6. Second connecting seat; 7. Telescopic column; 8. Connecting plate; 9. Connecting rod; 10. Mounting seat; 11. First connecting shaft; 12. Second connecting shaft; 13. Third connecting shaft; 14. Fourth connecting shaft; 15. Fixed hole; 16. Circular slide groove; 17. First fixed sleeve; 18. Second fixed sleeve; 19. Spring; 20. Locking cap; 21. Threaded rod; 22. Rubber pad. DETAILED DESCRIPTION
[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0032] Reference Figure 1-6 The utility model provides an embodiment of a U-iron grinding and clamping device, comprising a fixed frame 1, a fixed plate 2 is fixedly connected to the middle part of the upper end of the fixed frame 1, and the left and right sides of the fixed plate 2 are fixedly connected to the fixed end of the telescopic cylinder 3, a top plate 4 is arranged on the left and right sides of the upper end of the fixed frame 1, a first connecting seat 5 is arranged on the outer side of the bottom end of the top plate 4, and a second connecting seat 6 is arranged on the inner side of the bottom end of the top plate 4, a telescopic column 7 and a connecting plate 8 are arranged in the middle part of the bottom end of the top plate 4, and a connecting rod 9 is arranged on the front and rear sides of the connecting plate 8, and the middle parts of the first connecting seat 5 and the second connecting seat 6 are respectively slidably connected with the telescopic column 7, and the front and rear sides of the telescopic column 7 are respectively rotatably connected to the front and rear sides of the left upper end of the connecting plate 8, and the front and rear parts of the right upper end of the connecting plate 8 are respectively rotatably connected to one end of the connecting rod 9, and the other end of the connecting rod 9 is respectively rotatably connected to the front and rear sides of the second connecting seat 6.
[0033] The telescopic ends of the telescopic cylinder 3 are fixedly connected with a mounting seat 10, and the inner end of the mounting seat 10 is rotatably connected to the front and rear sides of the bottom end of the connecting plate 8, and the connecting plate 8 is driven to move by the telescopic movement of the telescopic cylinder 3. At the same time, it is convenient to connect the telescopic end of the telescopic cylinder 3 with the connecting plate 8. A first connecting shaft 11 is provided in the middle of the front and rear sides of the telescopic column 7, and a second connecting shaft 12 is provided on the upper right end of the front and rear sides of the connecting plate 8. A third connecting shaft 13 is provided at the front and rear ends of the first connecting seat 5, and a fourth connecting shaft 14 is provided at the bottom of the front and rear sides of the connecting plate 8. The rotation connection between the telescopic column 7, the connecting plate 8, the first connecting seat 5 and the mounting seat 10 is installed, and a fixing hole 15 is provided on the upper part of the outer side of the top plate 4, and a circular slide groove 16 is provided in the middle of the first connecting seat 5 and the second connecting seat 6. The fixing hole 15 facilitates the connection and fixation between the top plate 4 and the fixed frame 1, and the circular slide groove 16 facilitates the sliding and telescoping of the telescopic column 7.
[0034] The bottom of the connecting plate 8 is fixedly connected to the outer side with a first fixing sleeve 17, and the bottom of the inner left and right ends of the fixing frame 1 is fixedly connected to the second fixing sleeve 18. A spring 19 is arranged between the first fixing sleeve 17 and the second fixing sleeve 18. By arranging the spring 19 between the fixing frame 1 and the connecting plate 8, when the telescopic column 7 is clamped, the telescopic cylinder 3 is in a contracted state, and the connecting plate 8 is pushed by the elastic force of the spring 19 to increase the clamping strength and stability. The first connecting shaft 11, the second connecting shaft 12 and the third connecting shaft 13 are close to each other. The outer ends are all threadedly connected with locking caps 20, which are convenient for limiting the outer ends of the first connecting shaft 11, the second connecting shaft 12 and the third connecting shaft 13, and play a limiting role to prevent the components from falling off. The inner ends of the telescopic columns 7 are threadedly connected to one end of the threaded rod 21, and the other ends of the threaded rod 21 are fixedly connected with rubber pads 22. By threading the threaded rod 21 on the inner end of the telescopic columns 7, the clamping distance between the telescopic columns 7 can be adjusted to increase the clamping range, and the rubber pads 22 are arranged to avoid scratching the U iron.
[0035] Working principle: Through the extension and retraction of the telescopic end of the telescopic cylinder 3, the mounting seat 10 is rotated, pushed and pulled on the fourth connecting shaft 14 provided at the bottom end of the connecting plate 8, and the upper inner end of the connecting plate 8 is rotated on the first connecting shaft 11 provided on the front and rear sides of the telescopic column 7. The upper outer end of the connecting plate 8 pushes the inner end of the connecting rod 9 to rotate through the second connecting shaft 12, and the outer end of the connecting rod 9 is rotated on the third connecting shaft 13 provided on the front and rear sides of the first connecting seat 5, so that the telescopic column 7 slides back and forth in the circular slide groove 16 provided in the middle of the first connecting seat 5 and the second connecting seat 6. When the telescopic cylinder 3 is extended, the bottom end of the connecting plate 8 tends to move outward, causing the telescopic column 7 to shrink inward. When the telescopic cylinder 3 shrinks, the bottom end of the connecting plate 8 tends to move inward, causing the telescopic column 7 to extend outward, clamping and relaxing the U iron.
[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A U-iron grinding and clamping device, comprising a fixing frame (1), characterized in that: A fixing plate (2) is fixedly connected to the middle of the upper end of the fixing frame (1), and the left and right sides of the fixing plate (2) are fixedly connected to the fixed end of the telescopic cylinder (3). A top plate (4) is arranged on the left and right sides of the upper end of the fixing frame (1), and a first connecting seat (5) is arranged on the outer side of the bottom end of the top plate (4), and a second connecting seat (6) is arranged on the inner side of the bottom end of the top plate (4). A telescopic column (7) and a connecting plate (8) are arranged in the middle of the bottom end of the top plate (4). 8), the front and rear sides of the connecting plate (8) are both provided with connecting rods (9), the middle parts of the first connecting seat (5) and the second connecting seat (6) are respectively slidably connected with telescopic columns (7), the front and rear sides of the telescopic columns (7) are respectively rotatably connected to the front and rear sides of the left upper end of the connecting plate (8), the front and rear parts of the right upper end of the connecting plate (8) are respectively rotatably connected to one end of the connecting rod (9), and the other end of the connecting rod (9) is respectively rotatably connected to the front and rear sides of the second connecting seat (6).
2. The grinding and clamping device for U iron according to claim 1, characterized in that: The telescopic ends of the telescopic cylinder (3) are fixedly connected to a mounting seat (10), and the inner end of the mounting seat (10) close to the outside is rotatably connected to the front and rear sides of the bottom end of the connecting plate (8).
3. The grinding and clamping device for U iron according to claim 1, characterized in that: A first connecting shaft (11) is provided at the middle of the front and rear sides of the telescopic column (7), a second connecting shaft (12) is provided at the upper right end of the front and rear sides of the connecting plate (8), a third connecting shaft (13) is provided at the front and rear ends of the first connecting seat (5), and a fourth connecting shaft (14) is provided at the bottom of the front and rear sides of the connecting plate (8).
4. The grinding and clamping device for U iron according to claim 1, characterized in that: A fixing hole (15) is provided at the upper portion of the outer side of the top plate (4), and a circular sliding groove (16) is provided at the middle portion of the first connecting seat (5) and the second connecting seat (6).
5. The grinding and clamping device for U iron according to claim 1, characterized in that: The bottom end of the connecting plate (8) is fixedly connected to a first fixing sleeve (17) on the outer side, the bottom of the inner left and right ends of the fixing frame (1) are fixedly connected to a second fixing sleeve (18), and a spring (19) is provided between the first fixing sleeve (17) and the second fixing sleeve (18).
6. The grinding and clamping device for U iron according to claim 3, characterized in that: The outer ends of the first connecting shaft (11), the second connecting shaft (12) and the third connecting shaft (13) are all threadedly connected with locking caps (20).
7. The grinding and clamping device for U iron according to claim 1, characterized in that: The inner end of the telescopic column (7) is threadedly connected to one end of the threaded rod (21), and the other end of the threaded rod (21) is fixedly connected to a rubber pad (22).