Fixture for processing cylindrical surface of micro glass capillary tube

Abstract

The utility model relates to the technical field of glass capillary processing, and discloses a clamp for processing a cylindrical surface of a tiny glass capillary. Comprising a clamp base, a screw rod is rotationally connected to one side of the interior of the clamp base, the surface of the screw rod is sleeved with a threaded ring in a threaded mode, an L-shaped clamping plate slidably connected with the clamp base is bolted to the top of the threaded ring, and a clamping block is arranged on the side, away from the L-shaped clamping plate, of the top of the clamp base; four placing grooves with different sizes are symmetrically formed in the surface of the clamping block, and a protective pad is bonded to the side, close to the clamping block, of the L-shaped clamping plate. The four placing grooves with different sizes are formed in the surface of the clamping block and can be rotationally adjusted, so that the glass capillary can be adjusted to the proper placing grooves for clamping according to the outer diameter size, and the replacement frequency of the clamping block is reduced. And meanwhile, the clamping block can be detached and replaced from the top of the sliding rod, so that the clamping stability during machining of the glass capillary tubes with different sizes is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of glass capillary processing, in particular to a clamp for processing the cylindrical surface of a tiny glass capillary. Background Art

[0002] A glass capillary is a glass tube with a very small diameter. By setting the appropriate diameter and length, the flow rate of the glass capillary can be controlled very accurately.

[0003] After extensive searching, the Chinese utility model with the current announcement number CN220094251U discloses a fixture for grinding glass capillaries. During the processing of existing glass capillaries, a fixture is used to clamp and fix the glass capillaries to prevent them from moving. However, existing fixtures generally directly and rigidly clamp the glass capillaries. Since glass capillaries are very small, this clamping method can easily cause the glass capillaries to crack or break. Furthermore, when clamping glass capillaries of different diameters, in order to ensure the stability of the clamp, the clamping parts of the clamp are replaced to make them consistent with the surface size of the glass capillary, thereby ensuring a close fit. This results in frequent fixture replacement, which is quite time-consuming. The clamp cannot be adjusted to a size suitable for the surface of the glass capillary, resulting in low practicality. Utility Model Content

[0004] The purpose of the utility model is to provide a clamp for processing the cylindrical surface of a tiny glass capillary, which has the advantages of buffering and protecting the clamping force on the glass capillary and being able to adjust the clamping according to the outer diameter of the glass capillary, thereby solving the problems of easy breakage of the glass capillary by direct rigid clamping and frequent clamp replacement.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a fixture for processing the cylindrical surface of a tiny glass capillary, comprising a fixture seat, a screw being rotatably connected to one side of the interior of the fixture seat, a threaded ring being threadedly sleeved on the surface of the screw, an L-shaped clamping plate being bolted to the top of the threaded ring and being slidably connected to the fixture seat, a clamping block being provided on the side of the top of the fixture seat away from the L-shaped clamping plate, four placement grooves of different sizes being symmetrically provided on the surface of the clamping block, and a protective pad being bonded to the side of the L-shaped clamping plate close to the clamping block.

[0006] Preferably, a rotating wheel ring rotatably connected to the clamp seat is provided at the bottom of the clamping block, a sliding rod threadedly connected to the clamping block is slid through the interior of the rotating wheel ring, and a spring bolted to the rotating wheel ring is sleeved on the end of the sliding rod away from the clamping block, a square block is welded to the bottom of the sliding rod, and a square slot slidably inserted into the square block is provided inside the clamp seat.

[0007] Preferably, a rubber pad is bonded to the bottom of the clamp seat.

[0008] Preferably, one end of the screw rod away from the clamping block is bolted to a turntable which is rotatably connected to the clamp seat, and the interior of the turntable is threadedly connected to a limiting bolt which is clamped to the clamp seat.

[0009] Preferably, one end of the L-shaped clamping plate close to the threaded ring is slidably connected to a positioning rod welded to the clamp seat.

[0010] Preferably, a lifting block is bolted to the top of the clamping block.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0012] The utility model rotates the screw to engage the threaded ring, causing the ring to drive the L-shaped clamping plate to slide toward the clamping block to stably clamp the glass capillary tube. At the same time, a protective pad is bonded to the contact surface between the L-shaped clamping plate and the glass capillary tube, thereby buffering the clamping force on the glass capillary tube and reducing the phenomenon of the capillary tube being broken by direct rigid clamping.

[0013] This utility model provides four different sized placement slots on the surface of the clamping block, which can be rotated and adjusted. This allows the clamping block to be adjusted to the appropriate placement slot according to the outer diameter of the glass capillary tube, reducing the frequency of clamping block replacement. Furthermore, the clamping block can be removed and replaced from the top of the sliding rod, thereby ensuring stable clamping when processing glass capillaries of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a side view of the structure of the utility model;

[0015] Figure 2 This is a cross-sectional view of the structure of the utility model;

[0016] Figure 3 This is a top view of the structure of the utility model;

[0017] Figure 4 It is a schematic diagram of the local structure of the utility model.

[0018] In the figure: 1. Clamp seat; 2. Screw; 3. Threaded ring; 4. L-shaped clamp; 5. Positioning rod; 6. Clamping block; 7. Protective pad; 8. Placement slot; 9. Rotating wheel ring; 10. Sliding rod; 11. Spring; 12. Square block; 13. Square slot; 14. Turntable; 15. Limit bolt; 16. Rubber pad; 17. Pulling block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1 、 Figure 2 、 Figure 3 The utility model provides an embodiment comprising a clamp seat 1, wherein a screw rod 2 is rotatably connected to one side of the interior of the clamp seat 1, a threaded ring 3 is threadedly sleeved on the surface of the screw rod 2, an L-shaped clamp plate 4 slidably connected to the clamp seat 1 is bolted to the top of the threaded ring 3, a clamping block 6 is provided on the side of the top of the clamp seat 1 away from the L-shaped clamp plate 4, four placement grooves 8 of different sizes are symmetrically opened on the surface of the clamping block 6, and a protective pad 7 is adhered to the side of the L-shaped clamp plate 4 close to the clamping block 6. By rotating the screw rod 2 and threading the threaded ring 3, the threaded ring 3 drives the L-shaped clamp plate 4 to slide toward the clamping block 6 to stably clamp the glass capillary. At the same time, a protective pad 7 is adhered to the contact surface between the L-shaped clamp plate 4 and the glass capillary, thereby buffering and protecting the clamping force on the glass capillary and reducing the phenomenon of fracture of the capillary due to direct rigid clamping.

[0021] Furthermore, a rubber pad 16 is bonded to the bottom of the clamp seat 1; by providing the rubber pad 16, the friction force of the bottom of the clamp seat 1 can be increased, thereby improving the placement stability.

[0022] Furthermore, one end of the screw rod 2 away from the clamping block 6 is bolted to a turntable 14 which is rotatably connected to the clamp seat 1, and the interior of the turntable 14 is threadedly connected to a limit bolt 15 which is clamped to the clamp seat 1; by screwing the limit bolt 15 and engaging the thread of the turntable 14, the limit bolt 15 can be fixed to the clamp seat 1, thereby limiting the rotation of the screw rod 2.

[0023] Furthermore, one end of the L-shaped clamp 4 close to the threaded ring 3 is slidably connected to a positioning rod 5 welded to the clamp seat 1; by sliding the L-shaped clamp 4 on the surface of the positioning rod 5, the sliding of the L-shaped clamp 4 can be positioned to improve the sliding stability.

[0024] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4The present invention provides an embodiment in which a rotating ring 9 is provided at the bottom of the clamping block 6 and is rotatably connected to the clamping seat 1. A sliding rod 10, threadedly connected to the clamping block 6, is inserted through the interior of the rotating ring 9. A spring 11, bolted to the rotating ring 9, is sleeved on the end of the sliding rod 10 away from the clamping block 6. A square block 12 is welded to the bottom of the sliding rod 10. A square slot 13, which is slidably inserted into the square block 12, is provided inside the clamping seat 1. By providing four different sizes of placement slots 8 on the surface of the clamping block 6 and allowing for rotational adjustment, the clamping block 6 can be adjusted to the appropriate placement slot 8 according to the outer diameter of the glass capillary tube for clamping, reducing the frequency of replacement of the clamping block 6. At the same time, the clamping block 6 can be removed and replaced from the top of the sliding rod 10, thereby ensuring the stability of the clamping when processing glass capillaries of different sizes.

[0025] Furthermore, a lifting block 17 is bolted to the top of the clamping block 6. By pulling the lifting block 17 downward, the clamping block 6 is driven to move, thereby facilitating the rotation of the clamping block 6 to adjust the placement slots 8 of different sizes toward the L-shaped clamping plate 4.

[0026] Working Principle: First, by pulling down the clamping block 6, the sliding rod 10 overcomes the elastic force of the spring 11, causing the square block 12 to slide out of the square slot 13. Simultaneously, by turning the wheel ring 9, the clamping block 6 and sliding rod 10 can rotate on the top of the clamp base 1, adjusting the placement slot 8 of the corresponding size toward the L-shaped clamping plate 4. Next, a glass capillary tube of the same size as that in the placement slot 8 is placed, and the screw rod 2 is rotated to engage the threaded ring 3, so that the threaded ring 3 drives the L-shaped clamping plate 4 to slide toward the clamping block 6 on the top of the clamp base 1, causing the L-shaped clamping plate 4 to push the glass capillary tube into the placement slot 8, thereby clamping and securing the glass capillary tube.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixture for processing the cylindrical surface of a micro glass capillary, comprising a fixture seat (1), characterized in that: A screw rod (2) is rotatably connected to one side of the interior of the clamp seat (1), a threaded ring (3) is threadedly sleeved on the surface of the screw rod (2), an L-shaped clamp (4) slidably connected to the clamp seat (1) is bolted to the top of the threaded ring (3), a clamping block (6) is provided on the side of the top of the clamp seat (1) away from the L-shaped clamp (4), four placement grooves (8) of different sizes are symmetrically opened on the surface of the clamping block (6), and a protective pad (7) is bonded to the side of the L-shaped clamp (4) close to the clamping block (6).

2. A fixture for processing the cylindrical surface of a micro glass capillary according to claim 1, characterized in that: The bottom of the clamping block (6) is provided with a rotating wheel ring (9) which is rotatably connected to the clamp seat (1); the interior of the rotating wheel ring (9) is slidably connected to a sliding rod (10) which is threadedly connected to the clamping block (6); the end of the sliding rod (10) away from the clamping block (6) is sleeved with a spring (11) which is bolted to the rotating wheel ring (9); the bottom of the sliding rod (10) is welded with a square block (12); the interior of the clamp seat (1) is provided with a square slot (13) which is slidably plugged into the square block (12).

3. The fixture for processing the cylindrical surface of a micro glass capillary according to claim 1, characterized in that: A rubber pad (16) is bonded to the bottom of the clamp seat (1).

4. The fixture for processing the cylindrical surface of a micro glass capillary according to claim 1, characterized in that: The end of the screw rod (2) away from the clamping block (6) is bolted to a turntable (14) which is rotatably connected to the clamp seat (1), and the interior of the turntable (14) is threadedly connected to a limiting bolt (15) which is clamped to the clamp seat (1).

5. The fixture for processing the cylindrical surface of a micro glass capillary according to claim 1, characterized in that: One end of the L-shaped clamping plate (4) close to the threaded ring (3) is penetrated and slidably connected to a positioning rod (5) welded to the clamp seat (1).

6. The fixture for machining the cylindrical surface of a micro glass capillary according to claim 1, characterized in that: The top of the clamping block (6) is bolted with a lifting block (17).

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