Bolt thread machining device

Abstract

The utility model relates to the technical field of bolt machining, and discloses a bolt thread machining device which comprises a base, a lantern ring is fixedly connected to one end of the base, a sleeve is rotatably connected in the lantern ring, six first hydraulic cylinders are fixedly connected to the opening end of the inner wall of the sleeve, and the output ends of the first hydraulic cylinders are fixedly connected with pressing plates. The end, away from the opening, of the inner wall of the sleeve is fixedly connected with a first air cylinder, the output end of the first air cylinder is fixedly connected with a first pressing block, the end, away from the lantern ring, of the base is fixedly connected with a supporting column, the top of the supporting column is rotationally connected with a second air cylinder, and the output end of the supporting column is fixedly connected with a second pressing block. And in addition, through the design of the first pressing block and the second pressing block, the two axial ends of the bolt are clamped, and in this way, the sleeve does not shake when driving the bolt to rotate.

Description

Technical Field

[0001] The utility model relates to the technical field of bolt processing, in particular to a bolt thread processing device. Background Art

[0002] Bolts are a type of fastener consisting of a head and a screw (a cylinder with external threads). Bolts need to be threaded on their surfaces during production. The threaded connection of bolts is a fastening method widely used in all mechanical equipment and buildings in the world, and it reaches almost all parts of production and life. Bolts need to be threaded on their surfaces during production. When the existing bolts are threaded, the bolts will also rotate with the thread processing device. If the bolts are not effectively clamped and limited during rotation, the bolts will easily shake, resulting in failure to thread the bolts.

[0003] For example, a Chinese utility model patent disclosed in the Chinese patent publication with the publication number CN216938072U and the authorization announcement date of July 12, 2022 discloses a clamping device for high-strength bolt thread processing, which includes a base, a vertical plate, a first adjustable clamping mechanism and a second adjustable clamping mechanism; the vertical plate is fixed to one side of the outer surface of the base, the first adjustable clamping mechanism is slidably arranged inside the vertical plate, and the second adjustable holding mechanism is fixed to the top of the first adjustable clamping mechanism.

[0004] However, in actual use, the above device clamps and limits the bolts by designing the clamping parts, but the above device also allows the two clamping parts to appropriately expand and contract at the bottom of the top plate through the design of the spring, so as to clamp bolts of different sizes. However, since the stability of the spring itself is very poor, it is easy to expand and contract or even twist and deform when subjected to external force. In this way, the spring cannot provide sufficient supporting force for the clamping parts, and the clamping parts cannot clamp and limit the bolts, so that the bolts will still shake during thread processing, which leads to failure of thread opening of the bolts. Utility Model Content

[0005] The utility model aims to provide a bolt thread processing device to solve the problem that it is inconvenient to clamp and limit the bolt when the bolt is threaded.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bolt thread processing device comprises a base, one end of the base is fixedly connected with a collar, a sleeve is rotatably connected inside the collar, six first hydraulic cylinders are fixedly connected to the inner wall of the sleeve at an opening end, a pressure plate is fixedly connected to the output end of the first hydraulic cylinder, an end of the inner wall of the sleeve away from the opening is fixedly connected to a first cylinder, a first pressure block is fixedly connected to the output end of the first cylinder, an end of the base away from the collar is fixedly connected to a support column, a second cylinder is rotatably connected to the top of the support column, and a second pressure block is fixedly connected to the output end.

[0007] Preferably, the base is located below the sleeve and is fixedly connected to a motor, and the output end of the motor is meshingly connected to the sleeve.

[0008] Preferably, the output end of the motor is fixedly connected with a first gear, one end of the outer wall of the sleeve is fixedly connected with a second gear, and the first gear is meshingly connected with the second gear.

[0009] Preferably, the base is slidably connected to a second hydraulic cylinder between the collar and the support column, and a milling cutter is fixedly connected to an output end of the second hydraulic cylinder.

[0010] Preferably, the base is provided with a slide groove between the collar and the support column, a sliding block is fixedly connected to the bottom of the second hydraulic cylinder, and the slide groove is slidably connected to the sliding block.

[0011] Preferably, one end of the bottom of the support column is fixedly connected to an electric telescopic rod, and the electric telescopic rod is fixedly connected to the sliding block.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model drives six pressure plates to move respectively by six first hydraulic cylinders, thereby clamping the side wall of the bolt head, so that the bolt will not slip when the sleeve drives the bolt to rotate. In addition, the first cylinder drives the first pressure block to move and the second cylinder drives the second pressure block to move, thereby clamping the axial ends of the bolt, so that the sleeve will not shake when the bolt is driven to rotate, thereby improving the processing quality of the bolt thread. In addition, the motor drives the first gear to rotate, and then drives the second gear to rotate, so as to provide driving force for the rotation of the sleeve. In addition, the electric telescopic rod and the second hydraulic cylinder are designed to drive the milling cutter to move, so that the milling cutter can smoothly mill the bolt, thereby realizing the processing of the bolt thread. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2This is a schematic diagram of the internal structure of the sleeve in the utility model;

[0016] Figure 3 It is a schematic diagram of the side structure of the utility model.

[0017] In the figure: 1. base; 2. collar; 3. sleeve; 4. first hydraulic cylinder; 5. pressure plate; 6. first cylinder; 7. first pressure block; 8. support column; 9. second cylinder; 10. second pressure block; 11. motor; 12. first gear; 13. second gear; 14. second hydraulic cylinder; 15. milling cutter; 16. slide; 17. slider; 18. electric telescopic rod. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0019] See also Figure 1-3 The utility model provides a technical solution: a bolt thread processing device, including a base 1, a collar 2 is fixedly connected to one end of the base 1, a sleeve 3 is rotatably connected inside the collar 2, six first hydraulic cylinders 4 are fixedly connected to the inner wall of the sleeve 3 at the end of the opening, a pressure plate 5 is fixedly connected to the output end of the first hydraulic cylinder 4, a first cylinder 6 is fixedly connected to the inner wall of the sleeve 3 away from the opening, a first pressure block 7 is fixedly connected to the output end of the first cylinder 6, a support column 8 is fixedly connected to the end of the base 1 away from the collar 2, a second cylinder 9 is rotatably connected to the top of the support column 8, and a second pressure block 10 is fixedly connected to the output end,

[0020] In this embodiment, since the head of the bolt is generally hexagonal, the six pressing plates 5 are designed to clamp the bolt head. When in use, first put the head of the bolt into the sleeve 3, then open the six first hydraulic cylinders 4 at the same time, and the six pressing plates 5 will move under the drive of the six first hydraulic cylinders 4, so as to clamp the bolt head. Then, open the first cylinder 6, and the first pressing block 7 will move under the drive of the first cylinder 6. When the first pressing block 7 contacts the bolt, the first cylinder 6 will be closed, and at the same time, open the second cylinder 9, and the second pressing block 10 will move under the drive of the second cylinder 9. When the second pressing block 10 contacts the bolt, the second cylinder 9 will be closed. Under the action of the pressure block 7 and the second pressure block 10, the axial ends of the bolt are clamped. When performing thread processing, a driving member is required to drive the sleeve 3 to rotate, thereby driving the bolt to rotate, so that the thread processing can be smoothly performed on the bolt surface. The six pressure plates 5 in the sleeve 3 clamp and fix the bolt head, so that when the sleeve 3 drives the bolt to rotate, the bolt will not slip. In addition, since the axial ends of the bolt are clamped and fixed by the first pressure block 7 and the second pressure block 10 respectively, the end of the bolt away from the head will not shake when rotating. In this way, the bolt can always remain stable during the subsequent thread processing, thereby improving the quality of thread processing.

[0021] The base 1 is located below the sleeve 3 and is fixedly connected to a motor 11 . The output end of the motor 11 is meshedly connected with the sleeve 3 . In this embodiment, the motor 11 is designed to provide driving force for the rotation of the sleeve 3 .

[0022] The output end of the motor 11 is fixedly connected to a first gear 12, and one end of the outer wall of the sleeve 3 is fixedly connected to a second gear 13. The first gear 12 is meshed with the second gear 13. In this embodiment, the design of the first gear 12 and the second gear 13 allows the output end of the motor 11 to be smoothly meshed with the sleeve 3.

[0023] The base 1 is located between the collar 2 and the support column 8 and is slidably connected to a second hydraulic cylinder 14. A milling cutter 15 is fixedly connected to the output end of the second hydraulic cylinder 14. In this embodiment, the bolt is milled and grooved by the design of the milling cutter 15, so as to realize the processing of the bolt thread. The milling cutter 15 is driven up and down by the second hydraulic cylinder 14 so that the milling cutter 15 can smoothly contact the bolt. In addition, when processing the thread, the milling cutter 15 needs to move from the end of the bolt to the head, so the second hydraulic cylinder 14 is slidably connected to the base 1.

[0024] The base 1 is provided with a slide groove 16 between the collar 2 and the support column 8, and a slider 17 is fixedly connected to the bottom of the second hydraulic cylinder 14. The slide groove 16 is slidably connected to the slider 17. In this embodiment, the design of the slider 17 and the slide groove 16 allows the second hydraulic cylinder 14 to be smoothly slidably connected to the base 1.

[0025] An electric telescopic rod 18 is fixedly connected to one end of the bottom of the support column 8, and the electric telescopic rod 18 is fixedly connected to the slider 17. In this embodiment, the electric telescopic rod 18 is designed to drive the slider 17 to move, and then drive the milling cutter 15 to move, thereby providing driving force for the movement of the milling cutter 15, and this also makes the movement speed of the milling cutter 15 more stable.

[0026] Working principle: When in use, first put the head of the bolt into the sleeve 3, then open the six first hydraulic cylinders 4 at the same time, and the six pressure plates 5 will move under the drive of the six first hydraulic cylinders 4, so as to clamp the head of the bolt, then open the first cylinder 6, and the first pressure block 7 will move under the drive of the first cylinder 6, and when the first pressure block 7 contacts with the bolt, the first cylinder 6 will be closed, and at the same time, open the second cylinder 9, and the second pressure block 10 will move under the drive of the second cylinder 9, and when the second pressure block 10 contacts with the bolt, the second cylinder 9 will be closed, at this time, under the action of the first pressure block 7 and the second pressure block 10, the axial ends of the bolt are clamped, and then the motor 11 can be turned on, and the first gear 12 will rotate under the drive of the motor 11, thereby driving the second gear 13 to rotate, Then the sleeve 3 is driven to rotate, and the sleeve 3 will drive the bolt to rotate when it rotates. Since the six pressure plates 5 in the sleeve 3 clamp and fix the bolt head, the bolt will not slip when the sleeve 3 drives the bolt to rotate. Then the second hydraulic rod is opened, and the milling cutter 15 will move upward under the drive of the second hydraulic rod. When the milling cutter 15 contacts the bolt, the electric telescopic rod 18 is opened, and the electric telescopic rod 18 drives the milling cutter 15 to move at a uniform speed in the direction of the sleeve 3, so that the milling cutter 15 can mill the surface of the bolt, thereby realizing the processing of the bolt thread. Since the axial ends of the bolt are clamped and fixed by the first pressure block 7 and the second pressure block 10 respectively, the bolt itself will not shake during the process of the milling cutter 15 milling the bolt, thereby improving the quality of thread processing.

[0027] 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 and modifications may be made to the embodiments without departing from the principles of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bolt thread processing device, comprising a base (1), characterized in that: One end of the base (1) is fixedly connected to a collar (2), a sleeve (3) is rotatably connected inside the collar (2), six first hydraulic cylinders (4) are fixedly connected to the inner wall of the sleeve (3) at the end located at the opening, a pressure plate (5) is fixedly connected to the output end of the first hydraulic cylinder (4), a first cylinder (6) is fixedly connected to the inner wall of the sleeve (3) at the end away from the opening, a first pressure block (7) is fixedly connected to the output end of the first cylinder (6), a support column (8) is fixedly connected to the end of the base (1) away from the collar (2), a second cylinder (9) is rotatably connected to the top of the support column (8), and a second pressure block (10) is fixedly connected to the output end.

2. The bolt thread processing device according to claim 1, characterized in that: The base (1) is located below the sleeve (3) and is fixedly connected to a motor (11), and the output end of the motor (11) is meshingly connected to the sleeve (3).

3. The bolt thread processing device according to claim 2, characterized in that: The output end of the motor (11) is fixedly connected to a first gear (12), one end of the outer wall of the sleeve (3) is fixedly connected to a second gear (13), and the first gear (12) is meshingly connected to the second gear (13).

4. The bolt thread processing device according to claim 1, characterized in that: The base (1) is located between the collar (2) and the support column (8) and is slidably connected to a second hydraulic cylinder (14); a milling cutter (15) is fixedly connected to the output end of the second hydraulic cylinder (14).

5. The bolt thread processing device according to claim 4, characterized in that: The base (1) is provided with a slide groove (16) between the collar (2) and the support column (8); a slider (17) is fixedly connected to the bottom of the second hydraulic cylinder (14); and the slide groove (16) is slidably connected to the slider (17).

6. The bolt thread processing device according to claim 5, characterized in that: One end of the bottom of the support column (8) is fixedly connected to an electric telescopic rod (18), and the electric telescopic rod (18) is fixedly connected to a sliding block (17).

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