Bottom bracing clamp for machining faucet valve cover nut

Abstract

The utility model relates to a bottom bracing clamp for machining a faucet valve cover nut. The bottom bracing clamp comprises a bridge plate and a plurality of inner bracing sleeves distributed on the bridge plate in an array mode. Wherein the top of the inner supporting sleeve is divided into a plurality of inner supporting blocks which are distributed in an annular array, and a gap exists between every two adjacent inner supporting blocks; the side face of the inner supporting block is a stepped arc-shaped face matched with the inner surface of the valve deck nut in shape. An inner supporting screw used for expanding the inner supporting block outwards in the radial direction is movably arranged in the inner supporting sleeve, and the inner supporting screw penetrates through the inner supporting sleeve and is in threaded connection with the bridge plate. According to the bottom bracing clamp, the inner bracing blocks distributed on the inner bracing sleeve in the annular array mode are expanded through the inner bracing screws and serve as stress supporting points in the valve deck nut machining process, and therefore the valve deck nut is prevented from being pressed and deformed in the valve deck nut machining process; in addition, the machining requirements of valve cover nuts with different diameters can be met, and the application range is wide.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a bottom support clamp used for processing faucet valve cover nuts. Background Art

[0002] The valve cover nut is a faucet accessory. After casting, the valve cover nut requires polishing, deburring, and other processing techniques. Due to its ring-shaped shape and thin sidewalls, the valve cover nut is easily deformed by pressure during the processing, resulting in a low yield rate. Furthermore, the diameters of different valve cover nut models vary. Designing a fixture that can accommodate a wide range of valve cover nut specifications and prevents them from compressive deformation during processing has become a pressing technical challenge in this field. Utility Model Content

[0003] The purpose of the utility model is to solve the deficiencies of the prior art and provide a bottom support fixture for machining faucet valve cover nuts, so as to prevent the valve cover nuts from being compressed and deformed during machining.

[0004] The technical solution adopted by the utility model is: a bottom support fixture for processing faucet valve cover nuts, comprising a bridge plate and a plurality of inner support sleeves distributed in an array on the bridge plate;

[0005] Among them, the top of the inner support sleeve is divided into several inner support blocks distributed in a circular array, and there are gaps between adjacent inner support blocks; the side shape of the inner support block is a stepped arc surface adapted to the inner surface of the valve cover nut; the inner support sleeve is movably provided with an inner support screw for expanding the inner support block outward in the radial direction, and the inner support screw passes through the inner support sleeve and is threadedly connected to the bridge plate.

[0006] Preferably, a deformation cavity for the inner support screw to pass through is provided inside the inner support sleeve, and the deformation cavity is narrow at the top and wide at the bottom.

[0007] Preferably, the deformation cavity includes an upper cavity and a lower cavity, and the shape of the upper cavity is adapted to the shape of the upper end of the inner support screw.

[0008] Preferably, the top of the internal support screw is an internal support head with a gradually increasing diameter.

[0009] Preferably, the outer end surface of the inner support head is concave with a hexagonal hole.

[0010] Preferably, a thread connected to the bridge plate thread is provided on the lower side surface of the inner support screw.

[0011] Preferably, a threaded hole for threaded connection of the inner support screw is provided on the bridge plate at a position corresponding to the center of the inner support sleeve.

[0012] Preferably, the number of the inner support blocks is 4.

[0013] Preferably, a circumferential flange for fixing the inner support sleeve on the bridge plate extends radially outward from the bottom of the inner support sleeve.

[0014] Preferably, a plurality of fixing holes are evenly distributed on the circumferential flange.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] This new bottom support fixture features an internal support sleeve and internal support screws. The internal support screws prop open the internal support blocks, which are arranged in a circular array on the internal support sleeve. This allows the stepped, curved surfaces of the internal support blocks to abut against the inner side surfaces of the valve cover nut, serving as support points during the valve cover nut machining process and preventing compression and deformation. Furthermore, the internal support screws' internal support heads gradually increase in diameter from bottom to top, enabling the fixture to accommodate valve cover nuts of varying diameters, thus providing a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the present utility model.

[0018] Figure 2 It is a structural explosion diagram of the utility model.

[0019] Figure 3 It is a top view of the inner support sleeve.

[0020] Figure 4 It is along Figure 3 Cross-sectional view taken at AA.

[0021] Figure 5 It is a cross-sectional view of the valve cover nut on the bottom support fixture.

[0022] Figure 6 yes Figure 5 Enlarged schematic diagram of point B.

[0023] Figure 7 It is a top view of the valve cover nut.

[0024] Figure 8 It is along Figure 7 Cross-sectional view taken at CC.

[0025] The numbers in the figure indicate:

[0026] 1-bridge plate, 11-threaded hole, 12-mounting hole, 2-inner support sleeve, 21-inner support block, 211-stepped arc surface, 22-gap, 23-deformation cavity, 231-upper cavity, 232-lower cavity, 24-circumferential flange, 25-fixing hole, 3-inner support screw, 31-inner support head, 32-hexagonal recessed hole, 4-valve cover nut. DETAILED DESCRIPTION

[0027] To deepen the understanding of the present invention, the present invention will be further described below in conjunction with implementation examples and accompanying drawings. The present invention can be implemented in the following ways:

[0028] Reference Figure 1-8 A bottom support fixture for machining faucet valve cover nuts includes a bridge plate 1 and a plurality of inner support sleeves 2 arranged in an array on the bridge plate 1. The array design of the inner support sleeves 2 enables the fixture to process multiple valve cover nuts 4 simultaneously, greatly improving machining efficiency.

[0029] Specifically, the top of the inner support sleeve 2 is divided into a number of inner support blocks 21 distributed in a circular array. The number of the inner support blocks 21 is 4, and there is a gap 22 between adjacent inner support blocks 21, so that the inner support blocks 21 can deform under stress. The inner support sleeve 2 is internally provided with an inner support screw 3 for expanding the inner support block 21 outward in the radial direction. The inner support screw 3 passes through the inner support sleeve 2 and is threadedly connected to the bridge plate 1. The side shape of the inner support block 21 is a stepped arc surface 211 adapted to the inner surface of the valve cover nut 4. When the stepped arc surface 211 of the inner support block 21 contacts the inner side surface of the valve cover nut 4, the design of the stepped arc surface 211 can transfer the pressure on the valve cover nut 4 to the inner support block 21, thereby preventing the valve cover nut 4 from being deformed under pressure.

[0030] To increase the radial outward expansion of the inner support block 21, the inner support sleeve 2 is provided with a deformable cavity 23 for the inner support screw 3 to pass through. This deformable cavity 23 is narrow at the top and wide at the bottom, comprising an upper cavity 231 and a lower cavity 232. The shape of the upper cavity 231 is adapted to the shape of the upper end of the inner support screw 3. This design allows the inner support block 21 to form a rocking block that can swing relative to the bottom of the inner support sleeve 2.

[0031] To securely mount the inner support sleeve 2 on the bridge deck 1, a circumferential flange 24 extends radially outward from the bottom of the inner support sleeve 2, securing the inner support sleeve 2 to the bridge deck 1. Several fixing holes 25 are evenly distributed along the flange 24. During installation, screws are inserted through the fixing holes 25 and abutted against the bridge deck 1.

[0032] The top of the internal support screw 3 is an internal support head 31 with a gradually increasing diameter, shaped like an inverted truncated cone. The outer end surface of the internal support head 31 is recessed with a hexagonal hole 32. When the internal support screw 3 is tightened downward using a hexagonal wrench aligned with the hexagonal hole 32, the internal support head 31 gradually moves downward, forcing the internal support block 21 to expand outward, thereby clamping the valve cover nut 4. This design allows the clamp to accommodate valve cover nuts 4 of varying diameters, providing a wide range of applications.

[0033] To prevent horizontal displacement of the internal support screw 3, the lower side of the internal support screw 3 is provided with threads that connect to the bridge plate 1. A threaded hole 11 for the internal support screw 3 is provided on the bridge plate 1, corresponding to the center of the internal support sleeve 2. During installation, the internal support screw 3 is simply passed through the internal support sleeve 2 and screwed into the threaded hole 11 in the bridge plate 1. Mounting holes 12 are also provided at both ends of the bridge plate 1 for mounting the entire fixture on a machine tool.

[0034] Instructions: First, place the bonnet nut 4 onto the inner support sleeve 2. Then, insert the inner support screw 3 through the inner support sleeve 2 and screw it into the threaded hole 11 of the bridge plate 1. Then, use a hexagonal wrench to tighten the inner support screw 3 downward. The inner support block 21 gradually expands until the stepped arc surface 211 of the inner support block 21 abuts the inner side of the bonnet nut 4, thereby clamping the bonnet nut 4. When processing is completed, use a hexagonal wrench to loosen the inner support screw 3 upward to remove the bonnet nut 4. This is a simple and quick operation.

[0035] 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. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A bottom support fixture for processing faucet valve cover nuts, characterized in that: It comprises a bridge plate (1) and a plurality of inner support sleeves (2) distributed in an array on the bridge plate (1); The top of the inner support sleeve (2) is divided into a plurality of inner support blocks (21) distributed in a circular array, and there is a gap (22) between adjacent inner support blocks (21); the side shape of the inner support block (21) is a stepped arc surface (211) adapted to the inner surface of the valve cover nut (4); the inner support sleeve (2) is internally provided with an inner support screw (3) for expanding the inner support block (21) outward in a radial direction, and the inner support screw (3) passes through the inner support sleeve (2) and is threadedly connected to the bridge plate (1).

2. A bottom support fixture for processing faucet valve cover nuts according to claim 1, characterized in that: The inner support sleeve (2) is provided with a deformation cavity (23) for the inner support screw (3) to pass through, and the deformation cavity (23) is narrow at the top and wide at the bottom.

3. The bottom support fixture for processing faucet valve cover nuts according to claim 2, characterized in that: The deformation cavity (23) comprises an upper cavity (231) and a lower cavity (232), and the shape of the upper cavity (231) is adapted to the shape of the upper end of the inner support screw (3).

4. A bottom support fixture for processing faucet valve cover nuts according to claim 1, 2 or 3, characterized in that: The top of the inner support screw (3) is an inner support head (31) with a gradually increasing diameter.

5. The bottom support fixture for processing faucet valve cover nuts according to claim 4, characterized in that: The outer end surface of the inner support head (31) is concavely provided with a hexagonal recessed hole (32).

6. The bottom support fixture for processing faucet valve cover nuts according to claim 5, characterized in that: The lower side surface of the inner support screw (3) is provided with a thread that is threadedly connected to the bridge plate (1).

7. A bottom support fixture for processing faucet valve cover nuts according to claim 1 or 2 or 3 or 5 or 6, characterized in that: A threaded hole (11) for threaded connection of the inner support screw (3) is provided on the bridge plate (1) at a position corresponding to the center of the inner support sleeve (2).

8. A bottom support fixture for machining faucet valve cover nuts according to claim 1 or 2 or 3 or 5 or 6, characterized in that: The number of the inner support blocks (21) is 4.

9. A bottom support fixture for machining faucet valve cover nuts according to claim 1 or 2 or 3 or 5 or 6, characterized in that: The bottom of the inner support sleeve (2) extends radially outward to form a circumferential flange (24) for fixing the inner support sleeve (2) on the bridge plate (1).

10. The bottom support fixture for processing faucet valve cover nuts according to claim 9, characterized in that: A plurality of fixing holes (25) are evenly distributed on the circumferential flange (24).

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