Clamp for machining small hole in head of outer hexagon bolt

Abstract

The utility model relates to the technical field of machining, and discloses an outer hexagon bolt head small hole machining clamp which comprises a clamping device and a metal protection frame, the surface of the bottom end of the metal protection frame is fixedly connected with a bearing platform, and the surface of the bottom end of the bearing platform is fixedly connected with a supporting block. And the metal protective frame is in threaded connection with the lower end of the clamping device. According to the clamp for machining the small hole in the head of the outer hexagon bolt, by arranging the clamp body, the connecting device and the metal inserting plate, the clamp body between the two clamping plates in the clamp body can be adjusted, an outer hexagon nut is effectively prevented from loosening during machining, and therefore the situation that machining data of the outer hexagon bolt is unstable can be avoided; and by arranging a second threaded nut, a second limiting threaded rod and a metal connecting block, the metal connecting block can be detached, and replacement of the metal connecting block is faster and more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a clamp for processing a small hole on the head of an external hexagonal bolt. Background Art

[0002] The hexagonal bolt is a metal accessory, also called a hexagonal screw, a hexagonal screw or a hexagonal bolt. The hexagonal bolt is a commonly used part in daily life, and sometimes it is necessary to process a small hole in the head of the hexagonal bolt.

[0003] The prior art discloses an application number: CN202220469295, 7 a fixture for processing a small hole in the head of an external hexagonal bolt, comprising a limit block body, the top of the limit block body is equipped with a first fixture, the inner side of the first fixture is equidistantly provided with a first anti-slip groove, the left end of the first fixture is provided with a first internal thread groove, the top of the limit block body is provided with a limit groove on one side close to the first fixture, the top of the limit block body is provided with a fixing block on one side close to the limit groove, the right end of the bearing is provided with a screw, by arranging the limit groove, the sliding block, the first fixture, the second fixture, the first anti-slip groove, the second anti-slip groove, the screw, the bearing and the second internal thread groove, the head of the external hexagonal bolt to be processed can be clamped and fixed by the limit groove, the sliding block, the first fixture, the second fixture, the first anti-slip groove, the second anti-slip groove, the screw, the bearing and the second internal thread groove, the structure is simple, which helps to improve the processing efficiency of the small hole on the head of the external hexagonal bolt.

[0004] The installation of the second clamp and the slider makes it difficult to slide the position of the second clamp, making it difficult to clamp the first clamp and the second clamp, which will cause the hexagonal bolt to loosen during processing, resulting in unstable processing data of the hexagonal bolt. Utility Model Content

[0005] The utility model aims to provide a fixture for machining a small hole on the head of an external hexagonal bolt, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a clamp for processing small holes on the head of an external hexagonal bolt, comprising a clamping device and a metal guard frame, the bottom end surface of the metal guard frame is fixedly connected to a bearing platform, the bottom end surface of the bearing platform is fixedly connected to a support block, and the metal guard frame is threadedly connected to the lower end of the clamping device.

[0007] The clamping device includes a metal plug-in block, a clamp, a connecting device, two limiting threaded rods, two hexagonal nuts and a clamping silicone block. The two hexagonal nuts are located at the left end of the clamping device. The two hexagonal nuts are threadedly connected to the outward end of the two limiting threaded rods. The two limiting threaded rods penetrate the outward end of the metal plug-in block. The connecting device is movably connected to the inward end of the metal plug-in block. The connecting device is threadedly connected to the lower end of the clamp, and the clamping silicone block is installed on the upper end of the clamp.

[0008] Preferably, the clamp includes a clamping plate, a fixed threaded rod one, a hexagonal nut one, a fixed threaded rod two and a threaded nut one, the threaded nut one is located at the lower end of the clamp, the threaded nut one is threadedly connected to the lower end of the fixed threaded rod two, the fixed threaded rod two is fixedly connected to the bottom end surface of the clamping plate, the clamping plate is movably connected to the threaded end surface of the fixed threaded rod one, and the hexagonal nut one is threadedly connected to the threaded end surface of the fixed threaded rod one.

[0009] Preferably, the connecting device includes a limiting threaded rod 1, a metal connecting block and a threaded nut 2, wherein the threaded nut 2 is located at the lower end of the connecting device, the threaded nut 2 is threadedly connected to the lower end of the limiting threaded rod 1, and the limiting threaded rod 1 is fixedly connected to the bottom end surface of the metal connecting block.

[0010] Preferably, the metal plug-in block is movably connected to the inner wall surface of the metal guard frame, the metal guard frame is movably connected to the threaded end surface of the limiting threaded rod 2, the hexagonal nut 2 is movably connected to the left and right surfaces of the metal guard frame, and the metal plug-in block is movably connected to the surface of the supporting platform. By holding the surface of the metal plug-in block and pushing the metal plug-in block downward, the metal plug-in block is inserted into the inner wall surface of the metal guard frame, so that the bottom end surface of the metal plug-in block is connected to the top end surface of the supporting platform.

[0011] Preferably, the second threaded nut is movably connected to the bottom surface of the supporting platform, the first limiting threaded rod is movably connected to the inner wall surface of the supporting platform, the first limiting threaded rod is movably connected to the inner wall surface of the metal plug-in block, and the metal plug-in block is movably connected to the inner wall surface of the supporting platform. The surface of the second threaded nut is held and the second threaded nut is rotated so that the second threaded nut rotates on the threaded end surface of the first limiting threaded rod, thereby being able to threadably fix the metal connecting block, the supporting platform and the metal plug-in block.

[0012] Preferably, the clamping silicone block is movably connected to the inner wall surface of the clamping plate, the clamping plate is threadedly connected to the top surface of the metal connecting block, and the threaded nut is movably connected to the bottom surface of the metal connecting block. The upper end of the clamping plate is held and the clamping plate is pushed to move downward, so that the clamping plate pushes the metal connecting block to move downward, so that the metal connecting block is inserted into the inner end of the metal plug-in block, and at the same time, a limiting threaded rod penetrates the inner wall surface of the metal plug-in block and the supporting platform.

[0013] Preferably, the number of the fixed threaded rods 1 is four, two of the fixed threaded rods 1 form a group, the two groups of the fixed threaded rods 1 are distributed up and down, and the two fixed threaded rods 1 in the same group are distributed front and back, and the hexagonal nut 1 is threadedly connected to the surface of the clamping plate. Hold the surface of the hexagonal nut 1 and rotate the hexagonal nut 1 so that the hexagonal nut 1 rotates on the threaded end surface of the fixed threaded rod 1, thereby limiting and fixing the position of the clamping plate, thereby clamping and fixing the position of the clamping silicone block.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The clamp for processing the small hole on the head of the external hexagonal bolt is provided with a clamp, a connecting device and a metal plug plate, so that the clamp between the two clamping plates inside the clamp can be adjusted, which effectively prevents the external hexagonal nut from loosening during processing, thereby avoiding the instability of the data of the external hexagonal bolt processing, thereby increasing the service life of the device.

[0016] 2. The fixture for processing the small hole on the head of the external hexagonal bolt is provided with two threaded nuts, two limiting threaded rods and a metal connecting block, so that the metal connecting block can be disassembled, making the replacement of the metal connecting block faster and more convenient, and can increase the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an overall three-dimensional schematic diagram of the utility model;

[0018] Figure 2 This is a schematic bottom view of the utility model as a whole;

[0019] Figure 3 It is a three-dimensional schematic diagram of the metal guard frame and the bearing platform of the utility model;

[0020] Figure 4 It is a three-dimensional schematic diagram of the clamping device of the utility model;

[0021] Figure 5 It is a three-dimensional schematic diagram of the clamp and the connecting device of the utility model;

[0022] Figure 6 For this utility model Figure 5 A partial enlarged schematic diagram of the structure at point A in the middle.

[0023] In the figure: 1. Clamping device; 11. Metal plug-in block; 12. Clamp; 121. Clamping plate; 122. Fixed threaded rod 1; 123. Hexagonal nut 1; 124. Fixed threaded rod 2; 125. Threaded nut 1; 13. Connecting device; 131. Limiting threaded rod 1; 132. Metal connecting block; 133. Threaded nut 2; 14. Limiting threaded rod 2; 15. Hexagonal nut 2; 16. Clamping silicone block; 2. Support block; 3. Metal guard frame; 4. Load-bearing platform. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-6 , the utility model provides the following technical solutions:

[0026] A clamp for processing small holes on the heads of external hexagonal bolts comprises a clamping device 1 and a metal guard frame 3. The bottom surface of the metal guard frame 3 is fixedly connected to a bearing platform 4. The bottom surface of the bearing platform 4 is fixedly connected to a support block 2. The metal guard frame 3 is threadedly connected to the lower end of the clamping device 1.

[0027] The clamping device 1 includes a metal plug-in block 11, a clamp 12, a connecting device 13, a limiting threaded rod 14, a hexagonal nut 15 and a clamping silicone block 16. The hexagonal nut 15 is located at the left end of the clamping device 1. The hexagonal nut 15 is threadedly connected to the outer end of the limiting threaded rod 14. The limiting threaded rod 14 penetrates the outer end of the metal plug-in block 11. The connecting device 13 is movably connected to the inner end of the metal plug-in block 11. The metal plug-in block 11 is movably connected to the inner wall surface of the metal guard frame 3. The metal guard frame 3 is movably connected to The threaded end surface of the limiting threaded rod 14 and the hexagonal nut 15 are movably connected to the left and right surfaces of the metal frame 3, and the metal plug-in block 11 is movably connected to the surface of the supporting platform 4. Hold the surface of the metal plug-in block 11 and push the metal plug-in block 11 downward to allow the metal plug-in block 11 to be inserted into the inner wall surface of the metal frame 3, so that the bottom end surface of the metal plug-in block 11 is connected to the top end surface of the supporting platform 4, and the connecting device 13 is threadedly connected to the lower end of the clamp 12, and the clamping silicone block 16 is installed on the upper end of the clamp 12.

[0028] The clamp 12 includes a clamping plate 121, a fixed threaded rod 122, a hexagonal nut 123, a fixed threaded rod 124 and a threaded nut 125. The threaded nut 125 is located at the lower end of the clamp 12. The threaded nut 125 is threadedly connected to the lower end of the fixed threaded rod 124. The fixed threaded rod 124 is fixedly connected to the bottom end surface of the clamping plate 121. The clamping plate 121 is movably connected to the threaded end surface of the fixed threaded rod 122. The number of the fixed threaded rods 122 is four, two fixed threaded rods 122 form a group, and two fixed threaded rods 122 form a group. The fixed threaded rods 122 of the group are distributed up and down, and the two fixed threaded rods 122 of the same group are distributed front and back. The hexagonal nut 123 is threadedly connected to the surface of the clamping plate 121. Hold the surface of the hexagonal nut 123 and turn the hexagonal nut 123 to make the hexagonal nut 123 rotate on the threaded end surface of the fixed threaded rod 122, so that the position of the clamping plate 121 can be limited and fixed, so that the position of the clamping silicone block 16 can be clamped and fixed, and the hexagonal nut 123 is threadedly connected to the threaded end surface of the fixed threaded rod 122.

[0029] The connecting device 13 includes a limiting threaded rod 131, a metal connecting block 132 and a threaded nut 133. The threaded nut 133 is located at the lower end of the connecting device 13. The threaded nut 133 is movably connected to the bottom surface of the load-bearing platform 4. The limiting threaded rod 131 is movably connected to the inner wall surface of the load-bearing platform 4. The limiting threaded rod 131 is movably connected to the inner wall surface of the metal plug-in block 11. The metal plug-in block 11 is movably connected to the inner wall surface of the load-bearing platform 4. The surface of the threaded nut 133 is held and the threaded nut 133 is rotated so that the threaded nut 133 rotates on the threaded end surface of the limiting threaded rod 131, thereby being able to screw the metal connecting block 132, the load-bearing platform 4 and the metal plug-in block 11. The threaded nut 133 is threadedly connected to the lower end of the limiting threaded rod 131, the clamping silicone block 16 is movably connected to the inner wall surface of the clamping plate 121, the clamping plate 121 is threadedly connected to the top surface of the metal connecting block 132, and the threaded nut 125 is movably connected to the bottom surface of the metal connecting block 132. The upper end of the clamping plate 121 is held and the clamping plate 121 is pushed to move downward, so that the clamping plate 121 pushes the metal connecting block 132 to move downward, so that the metal connecting block 132 is inserted into the inner end of the metal plug-in block 11. At the same time, the limiting threaded rod 131 penetrates the inner wall surface of the metal plug-in block 11 and the supporting platform 4, and the limiting threaded rod 131 is fixedly connected to the bottom surface of the metal connecting block 132.

[0030] When in use, hold the surface of the metal plug-in block 11 and push the metal plug-in block 11 downward to insert the metal plug-in block 11 into the inner wall surface of the metal guard frame 3 so that the bottom surface of the metal plug-in block 11 is connected to the top surface of the carrying platform 4.

[0031] Then, hold the threaded end of the limiting threaded rod 14 and push the limiting threaded rod 14 through the metal plug-in block 11 and the inner wall surface of the metal guard frame 3 , so that the left side surface of the limiting threaded rod 14 is flush with the left side surface of the bearing platform 4 .

[0032] Then, the hexagonal nut 15 is rotated to rotate on the outward threaded end surface of the limiting threaded rod 14 so that the hexagonal nut 15 is connected to the outer surface of the metal guard frame 3, thereby determining the position of the metal plug-in block 11.

[0033] Then, hold the bottom surface of the metal connecting block 132 and push the metal connecting block 132 upward so that the metal connecting block 132 is connected to the bottom surface of the clamping plate 121 , and at the same time, the fixing threaded rod 124 passes through the front and rear ends of the metal connecting block 132 .

[0034] Then, the threaded nut 125 is rotated, and the threaded nut 125 rotates on the threaded surface of the fixed threaded rod 2 124 , so that the threaded nut 125 is connected to the upper end surface of the metal connecting block 132 , and the metal connecting block 132 and the clamping plate 121 can be threadedly fixed.

[0035] Then hold the upper end of the clamping plate 121 and push the clamping plate 121 downward, so that the clamping plate 121 pushes the metal connecting block 132 downward, so that the metal connecting block 132 is inserted into the inner end of the metal plug-in block 11, and at the same time, the limiting threaded rod 131 penetrates the inner wall surface of the metal plug-in block 11 and the supporting platform 4.

[0036] The clamping silicone block 16 is inserted into the inner wall surface of the upper end of the clamping plate 121, and the thickness and size of the clamping silicone block 16 can be adjusted according to the processed external hexagonal bolt.

[0037] Then, the two clamping plates 121 are pushed to move toward each other so that the two clamping plates 121 are in contact with each other, thereby determining the position of the clamped silicone block 16 .

[0038] Then hold the surface of the second threaded nut 133 and rotate the second threaded nut 133 so that the second threaded nut 133 rotates on the threaded end surface of the limiting threaded rod 131, thereby threading the metal connecting block 132, the supporting platform 4 and the metal plug-in block 11 together.

[0039] Then hold one end of the fixed threaded rod 122 and push the fixed threaded rod 122 to be inserted into the inner wall surface of the clamping plate 121, so that the two clamping plates 121 can be limited.

[0040] Next, hold the surface of the hexagonal nut 123 and rotate the hexagonal nut 123 so that the hexagonal nut 123 rotates on the threaded end surface of the fixed threaded rod 122, thereby limiting and fixing the position of the clamping plate 121, thereby clamping and fixing the position of the clamping silicone block 16.

[0041] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clamp for machining a small hole on the head of an external hexagonal bolt, comprising a clamping device (1) and a metal guard frame (3), characterized in that: The bottom surface of the metal guard frame (3) is fixedly connected to a bearing platform (4), the bottom surface of the bearing platform (4) is fixedly connected to a support block (2), and the metal guard frame (3) is threadedly connected to the lower end of the clamping device (1); The clamping device (1) comprises a metal plug-in block (11), a clamp (12), a connecting device (13), a limiting threaded rod (14), a hexagonal nut (15) and a clamping silicone block (16); the hexagonal nut (15) is located at the left end of the clamping device (1); the hexagonal nut (15) is threadedly connected to the outward end of the limiting threaded rod (14); the limiting threaded rod (14) passes through the outward end of the metal plug-in block (11); the connecting device (13) is movably connected to the inward end of the metal plug-in block (11); the connecting device (13) is threadedly connected to the lower end of the clamp (12); and the clamping silicone block (16) is installed at the upper end of the clamp (12).

2. A fixture for machining a small hole on the head of an external hexagonal bolt according to claim 1, characterized in that: The clamp (12) comprises a clamping plate (121), a fixed threaded rod (122), a hexagonal nut (123), a fixed threaded rod (124) and a threaded nut (125), wherein the threaded nut (125) is located at the lower end of the clamp (12), the threaded nut (125) is threadedly connected to the lower end of the fixed threaded rod (124), the fixed threaded rod (124) is fixedly connected to the bottom end surface of the clamping plate (121), the clamping plate (121) is movably connected to the threaded end surface of the fixed threaded rod (122), and the hexagonal nut (123) is threadedly connected to the threaded end surface of the fixed threaded rod (122).

3. A fixture for machining a small hole on the head of an external hexagonal bolt according to claim 2, characterized in that: The connecting device (13) comprises a limiting threaded rod (131), a metal connecting block (132) and a threaded nut (133), wherein the threaded nut (133) is located at the lower end of the connecting device (13), the threaded nut (133) is threadedly connected to the lower end of the limiting threaded rod (131), and the limiting threaded rod (131) is fixedly connected to the bottom end surface of the metal connecting block (132).

4. A fixture for machining a small hole on the head of an external hexagonal bolt according to claim 3, characterized in that: The metal plug-in block (11) is movably connected to the inner wall surface of the metal protective frame (3), the metal protective frame (3) is movably connected to the threaded end surface of the second limiting threaded rod (14), the second hexagonal nut (15) is movably connected to the left and right surfaces of the metal protective frame (3), and the metal plug-in block (11) is movably connected to the surface of the bearing platform (4).

5. A fixture for machining a small hole on the head of an external hexagonal bolt according to claim 4, characterized in that: The threaded nut 2 (133) is movably connected to the bottom surface of the bearing platform (4), the limiting threaded rod 1 (131) is movably connected to the inner wall surface of the bearing platform (4), the limiting threaded rod 1 (131) is movably connected to the inner wall surface of the metal plug-in block (11), and the metal plug-in block (11) is movably connected to the inner wall surface of the bearing platform (4).

6. A fixture for machining a small hole on the head of an external hexagonal bolt according to claim 5, characterized in that: The clamping silicone block (16) is movably connected to the inner wall surface of the clamping plate (121), the clamping plate (121) is threadedly connected to the top surface of the metal connecting block (132), and the threaded nut (125) is movably connected to the bottom surface of the metal connecting block (132).

7. A fixture for machining a small hole on the head of an external hexagonal bolt according to claim 6, characterized in that: The number of the fixed threaded rods (122) is four, two of the fixed threaded rods (122) form a group, the two groups of fixed threaded rods (122) are distributed up and down, and the two fixed threaded rods (122) in the same group are distributed front and back, and the hexagonal nut (123) is threadedly connected to the surface of the clamping plate (121).

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