Pneumatic clamping device for drilling deep holes in shafts

Abstract

The utility model discloses a pneumatic clamping device for drilling deep holes in shafts, and relates to the related technical field of shaft machining. The clamping device comprises a supporting base, lifting air cylinders, supporting seats and clamping seats, the supporting seats are arranged on the two short edges of the top of the supporting base, the lifting air cylinders are fixed to the positions, behind the supporting seats, of the corners of the supporting base respectively, movable shafts are fixed to the telescopic ends of the lifting air cylinders respectively, and the clamping seats are movably connected to the peripheral sides of the movable shafts respectively. A supporting groove is fixed to the top of each supporting base. Through the arrangement of the supporting base, the lifting air cylinder, the supporting base and the clamping base, the problems that the clamping device is not good enough in applicability when clamping shaft type workpieces and is not convenient to clamp the shaft type workpieces are solved, and the clamping device has the advantages that the clamping device is good in applicability when clamping the shaft type workpieces, and clamping of the shaft type workpieces is more convenient and faster.

Description

Technical Field

[0001] The utility model belongs to the technical field related to shaft processing, in particular to a pneumatic clamping device for drilling deep holes in shafts. Background Art

[0002] Deep hole drilling for shafts is a machining process mainly used to drill deeper holes on shaft parts. This process is widely used in mechanical manufacturing, aerospace, automobile manufacturing and other fields. The working steps are usually as follows: fix the shaft parts to be processed on the workbench to ensure their stability, accurately position the drill bit at the position where the hole needs to be drilled through the positioning system of the machine tool, start the spindle motor to make the drill bit rotate at high speed, provide cutting fluid to cool the drill bit and remove chips, and the drill bit drills along the predetermined path. At the same time, the cutting fluid continuously cools the drill bit and removes chips. According to the processing requirements, the movement of the drill bit is controlled to complete the deep hole drilling. When drilling deep holes in shafts, it is necessary to cooperate well with the clamping device, but it still has the following disadvantages in actual use:

[0003] When clamping shaft workpieces, the clamping device usually needs to directly place the shaft part to be processed on it, and then clamp the part through an additional clamping structure. During the working process, the diameter of the shaft part at different positions may be different. When clamping different shaft workpieces, a specially designed clamping device is required, which increases the processing cost.

[0004] When the clamping device clamps the shaft workpiece, the shaft workpiece is directly clamped by two clamping devices. After the processing is completed, the two clamping structures are arranged correspondingly up and down. When the shaft workpiece needs to be removed, the clamping structures need to be separated by a long distance. Therefore, it is not convenient to clamp the shaft workpiece during work. Utility Model Content

[0005] The purpose of the utility model is to provide a pneumatic clamping device for drilling deep holes in shafts. By arranging a supporting base, a lifting cylinder, a supporting seat and a clamping seat, the problem that the clamping device is not suitable enough for clamping shaft workpieces and is not convenient enough for clamping shaft workpieces is solved.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The utility model is a pneumatic clamping device for drilling deep holes in shafts, comprising a support base, a lifting cylinder, a support base and a clamping base. Support bases are provided at the two short sides of the top of the support base, and a lifting cylinder is fixed at the corner of the support base behind each of the support bases. A movable shaft is fixed to the telescopic end of the lifting cylinder, and a clamping base is movably connected to the circumferential side of each movable shaft. A support groove is fixed to the top of each of the support bases. When working, the lifting cylinder, the support base and the clamping base are supported on the moving structure of the machine tool track by the support base, the clamping base is driven to rise and fall by the lifting drive, and the processing shaft body is supported on it by the support groove fixed on the support base.

[0008] Furthermore, the lower parts of the circumferential sides of the two lifting cylinders are fixedly connected with a connecting pipe, and the ends of the two connecting pipes close to each other are fixedly connected with a three-way pipe. When the lifting cylinders are working, the three-way pipe is connected to the lifting cylinders through the connecting pipe.

[0009] Furthermore, the end of the tee pipe away from the two connecting pipes is fixedly connected to the air supply pipe, and the end of the tee pipe away from the two connecting pipes is fixedly connected to the middle of the circumference of the air supply pipe. Electric control valves are fixed on the circumference of the air supply pipe on both sides of the tee pipe, and air is input or output into or out of the tee pipe through the air supply pipe.

[0010] Furthermore, a mounting bolt is inserted through the front of each support seat, and an insertion rod is fixed to the rear of the bottom surface of each support seat. When the support seat is working, the mounting bolt and the insertion rod are used to provide installation of the support seat.

[0011] Furthermore, a mounting screw hole is provided at a position on the top of the support base corresponding to the mounting bolt, and a mounting socket is provided at a position on the top of the support base corresponding to the insertion rod. The mounting bolt extending from the bottom of the support base is threadedly connected in the mounting screw hole, and the insertion rod is inserted in the mounting socket. When the support base is working, the mounting bolt is threadedly connected through the mounting screw hole.

[0012] Furthermore, a bayonet is provided at a position corresponding to the support groove at the bottom of the clamping seat, and a movable hole is provided in a position corresponding to the movable shaft in the clamping seat. The movable shaft is inserted into the movable hole, and a processing shaft body is movably connected in the two support grooves. The clamping seat clamps the processing shaft body through the bayonet and the support groove.

[0013] The utility model has the following beneficial effects:

[0014] The utility model solves the problem that the clamping device is not well applicable when clamping shaft workpieces by arranging a support base, a lifting cylinder, a support seat and a clamping seat. When clamping is required, the processing shaft body is placed in the support groove, and the mounting plate on the peripheral side of the processing shaft body is arranged between the two support seats, and then the processing shaft body is pushed to the mounting plate and is arranged on the support seat and support groove away from the deep hole drill bit. After the setting is completed, the electric control valve close to the negative pressure pipeline is opened, and when the electric control valve close to the high pressure is closed, the air in the lifting cylinder is extracted, and the lifting cylinder drives the clamping seat to descend until the two clamping seats completely clamp the processing shaft body, and processing can be carried out. After the processing is completed, the electric control valve close to the negative pressure pipeline is closed, and when the electric control valve close to the high pressure is opened, the high-pressure air is transported to the lifting cylinder, so that the lifting cylinder drives the clamping seat to rise, thereby releasing the restriction on the processing shaft body. During operation, the clamping device has better applicability in clamping shaft workpieces.

[0015] The utility model solves the problem that the clamping device is not convenient for clamping shaft workpieces by arranging a lifting cylinder, a support seat and a clamping seat. After the processing shaft body is supported in the support groove on the support seat, the clamping seat is immediately rotated until the clamping seat is set above the support groove. The clamping seat is then driven to descend by the lifting cylinder. The clamping seat is lowered until the processing shaft body is set in the bayonet and clamped by the clamping seat to perform deep hole drilling on the processing shaft body. After the processing is completed, the lifting cylinder is started to drive the clamping seat to rise to the bottom higher than the high point of the peripheral side of the processing shaft body. The clamping seat is then rotated and rotated to move away from the processing shaft body. The processing shaft body can be removed and the next processing cycle can be carried out. During work, the clamping device can clamp the shaft workpiece more conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A three-dimensional diagram of the assembly structure of a pneumatic clamping device for drilling deep holes in shafts;

[0018] Figure 2 A three-dimensional diagram of the supporting base structure;

[0019] Figure 3 It is a three-dimensional diagram of the lifting cylinder structure;

[0020] Figure 4 It is a three-dimensional diagram of the support base structure;

[0021] Figure 5 It is a three-dimensional diagram of the clamping seat structure.

[0022] Reference numerals:

[0023] 1. Support base; 101. Mounting socket; 102. Mounting screw hole; 2. Lifting cylinder; 201. Movable shaft; 202. Connecting pipe; 203. Tee pipe; 204. Gas pipe; 205. Electric control valve; 3. Support seat; 301. Mounting bolt; 302. Insert rod; 303. Support groove; 4. Clamping seat; 401. Bayonet; 402. Movable hole; 5. Processing shaft. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying 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. Specific embodiment 1

[0025] See also Figure 1-5 When the support rail 1 is in operation, the support rail 1 is supported by the support rail 3 and the support rail 3 is supported by the support rail 3. When the support rail 1 is in operation, the support rail 1 is supported by the support rail 3 and the support rail 3 is supported by the support rail 3. The support rail 1 is supported by the support rail 3 and the support rail 3 is supported by the support rail 3.

[0026] Specifically, the lower parts of the circumferential sides of the two lifting cylinders 2 are fixedly connected with a connecting pipe 202, and the ends of the two connecting pipes 202 close to each other are fixedly connected with a three-way pipe 203. When the lifting cylinder 2 is working, the gas transported in the gas pipe 204 is transported to the lifting cylinder 2 through the three-way pipe 203, and when the lifting cylinder 2 needs to drive the movable shaft 201 to descend, the high-pressure air in the lifting cylinder 2 is transported to the three-way pipe 203 through the connecting pipe 202.

[0027] Furthermore, the end of the three-way pipe 203 away from the two connecting pipes 202 is fixedly connected to the air supply pipe 204, and the end of the three-way pipe 203 away from the two connecting pipes 202 is fixedly connected to the middle of the circumference of the air supply pipe 204. Electric control valves 205 are fixed on the circumference of the air supply pipe 204 on both sides of the three-way pipe 203. The two ends of the air supply pipe 204 are respectively connected to the pipeline for conveying high-pressure gas and the pipeline on the equipment that generates negative pressure. When working, when the electric control valve 205 close to the negative pressure pipeline is opened and the electric control valve 205 close to the high pressure is closed, the air in the lifting cylinder 2 is extracted, and the lifting cylinder 2 drives the clamping seat 4 to descend. When the electric control valve 205 close to the negative pressure pipeline is closed and the electric control valve 205 close to the high pressure is opened, the high-pressure air is delivered to the lifting cylinder 2, so that the lifting cylinder 2 drives the clamping seat 4 to rise.

[0028] Furthermore, a mounting bolt 301 is inserted through the front of each support seat 3, and an insertion rod 302 is fixed to the rear of the bottom surface of each support seat 3. When the support seat 3 is working, it is installed on the top of the support base 1 through the mounting bolt 301.

[0029] Furthermore, a mounting screw hole 102 is provided at a position on the top of the support base 1 corresponding to the mounting bolt 301, and a mounting socket 101 is provided at a position on the top of the support base 1 corresponding to the insertion rod 302. The mounting bolt 301 extending from the bottom part of the support base 3 is threadedly connected to the mounting screw hole 102, and the insertion rod 302 is inserted into the mounting socket 101. When the support base 1 is working, the support base 1 and the support base 3 are installed together by threading the mounting screw hole 102 and the mounting bolt 301, and inserting the insertion rod 302 into the mounting socket 101 on the support base 1.

[0030] The operating process of this embodiment is as follows: during operation, when clamping is required, the processing shaft body 5 is placed in the support groove 303, and the mounting plate on the side of the processing shaft body 5 is set between the two support seats 3, and then the processing shaft body 5 is pushed to the mounting plate and set on the support seat 3 and the support groove 303 away from the deep hole drill bit. After the setting is completed, the electric control valve 205 close to the negative pressure pipeline is opened, and when the electric control valve 205 close to the high pressure is closed, the air in the lifting cylinder 2 is extracted, and the lifting cylinder 2 drives the clamping seat 4 to descend until the two clamping seats 4 completely clamp the processing shaft body 5, and processing can be carried out. After the processing is completed, the electric control valve 205 close to the negative pressure pipeline is closed, and when the electric control valve 205 close to the high pressure is opened, high-pressure air is delivered to the lifting cylinder 2, so that the lifting cylinder 2 drives the clamping seat 4 to rise, thereby releasing the restriction on the processing shaft body 5. Specific embodiment 2

[0031] See also Figure 1 、 34. On the basis of the specific embodiment 1, a bayonet 401 is provided at the bottom of the clamping seat 4 at a position corresponding to the support groove 303, and the arc-shaped edge of the bayonet 401 is set in a bad arc. A movable hole 402 is provided at a position corresponding to the movable shaft 201 in the clamping seat 4, and the movable shaft 201 is inserted into the movable hole 402. The two support grooves 303 are movably connected with the processing shaft body 5. When the clamping seat 4 is working, the processing shaft body 5 is restricted by the bayonet 401 in conjunction with the movably connection, and the movable shaft 201 is movably connected through the movable hole 402. When the clamping seat 4 rises, it can rotate above the processing shaft body 5.

[0032] The operating process of this embodiment is: during operation, after the processing shaft body 5 is supported in the support groove 303 on the support seat 3, the clamping seat 4 is immediately rotated until the clamping seat 4 is set above the support groove 303, and then the clamping seat 4 is driven to descend by the lifting cylinder 2, and the clamping seat 4 is lowered until the processing shaft body 5 is set in the bayonet 401 and clamped by the clamping seat 4 to perform deep hole drilling processing on the processing shaft body 5. After the processing is completed, the lifting cylinder 2 is started to drive the clamping seat 4 to rise to the bottom higher than the high point around the processing shaft body 5, and then the clamping seat 4 is rotated to rotate the clamping seat 4 away from the processing shaft body 5, and the processing shaft body 5 can be removed to proceed to the next processing cycle.

[0033] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0034] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A pneumatic clamping device for drilling deep holes in shafts, comprising a support base (1), a lifting cylinder (2), a support base (3) and a clamping base (4), characterized in that: Support seats (3) are provided at the two short sides of the top of the support base (1), a lifting cylinder (2) is fixed at the corner of the support base (1) behind each support seat (3), a movable shaft (201) is fixed to the telescopic end of the lifting cylinder (2), a clamping seat (4) is movably connected to the circumference of each movable shaft (201), and a support groove (303) is fixed on the top of each support seat (3).

2. The pneumatic clamping device for deep hole drilling of shafts according to claim 1, characterized in that: The lower parts of the circumferential sides of the two lifting cylinders (2) are both fixedly connected with a connecting pipe (202), and the ends of the two connecting pipes (202) close to each other are fixedly connected with a three-way pipe (203).

3. The pneumatic clamping device for deep hole drilling of shafts according to claim 2, characterized in that: The end of the three-way pipe (203) away from the two connecting pipes (202) is fixedly connected to the gas supply pipe (204), the end of the three-way pipe (203) away from the two connecting pipes (202) is fixedly connected to the middle of the circumference of the gas supply pipe (204), and the circumference of the gas supply pipe (204) on both sides of the three-way pipe (203) is fixed with an electric control valve (205).

4. The pneumatic clamping device for deep hole drilling of shafts according to claim 1, characterized in that: A mounting bolt (301) is inserted through the front portion of each support seat (3), and an insertion rod (302) is fixed to the rear portion of the bottom surface of each support seat (3).

5. The pneumatic clamping device for deep hole drilling of shafts according to claim 4, characterized in that: A mounting screw hole (102) is provided at a position on the top of the support base (1) corresponding to the mounting bolt (301), and a mounting socket (101) is provided at a position on the top of the support base (1) corresponding to the insertion rod (302). The mounting bolt (301) extending from the bottom portion of the support base (3) is threadedly connected to the mounting screw hole (102), and the insertion rod (302) is inserted into the mounting socket (101).

6. The pneumatic clamping device for deep hole drilling of shafts according to claim 1, characterized in that: A bayonet (401) is provided at a position on the bottom of the clamping seat (4) corresponding to the supporting groove (303), a movable hole (402) is provided in the clamping seat (4) at a position corresponding to the movable shaft (201), the movable shaft (201) is inserted through the movable hole (402), and a processing shaft body (5) is movably connected to the two supporting grooves (303).

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