A double-end machining clamping device for shaft parts

Abstract

The utility model discloses a kind of axle parts double-end machine tool clamping devices, the front end of clamping concrete is equipped with end hole, the side of clamping concrete is equipped with side hole, and side hole is communicated with end hole and forms accommodating cavity;The upper and lower of clamping concrete front end are respectively connected with first air cylinder and 180 ° rotating air cylinder, upper clamp block is connected in first air cylinder, lower clamp base is connected in rotating air cylinder, first air cylinder drives upper clamp block to approach or away from lower clamp base;Accommodating cavity is connected with second air cylinder, second air cylinder is located in the side of upper clamp block and lower clamp base;After second air cylinder completely stretches out, the distance L between second air cylinder front end and clamping concrete front end is same with the length of part, and lower clamp base is located at the center of length L;End cover is connected to clamping concrete, rotating joint is connected on end cover, first air cylinder, rotating air cylinder and second air cylinder are all connected to rotating joint.Compared with prior art, the utility model is simple in structure, scientific and reasonable, and only needs to be clamped once when processing two ends of part, greatly improves work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of clamping technology, and in particular to a double-end machining clamping device for shaft parts. Background Technology

[0002] With the widespread application of CNC machine tools, the efficiency of machining has been greatly improved. Shaft parts are among the most common parts, and they often have the need for machining keyways and holes. When machining them in a CNC machining center, special fixtures need to be designed to improve machining efficiency.

[0003] like Figure 1 As shown, this shaft-like part requires boring blind holes of the same size and position at both ends. In existing technology, the operator first clamps the shaft-like part onto a fixture, then bores the blind hole at one end; after machining one end, the operator removes the shaft-like part and then bores the blind hole at the other end. This traditional fixture requires clamping twice when machining both ends of a single shaft-like part, reducing work efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a double-end machining clamping device for shaft parts, which has a simple and scientifically reasonable structure. It only needs to be clamped once when machining both ends of the part, which greatly improves work efficiency and solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A double-end machining clamping device for shaft parts includes a clamping body, an end cover, an upper clamping block, and a lower clamping seat. The front end of the clamping body has an end hole, and the side of the clamping body has a side hole, which communicates with the end hole to form a receiving cavity. A first cylinder and a 180° rotating cylinder are respectively connected above and below the front end of the clamping body. The upper clamping block is connected to the first cylinder, and the lower clamping seat is connected to the rotating cylinder. The first cylinder drives the upper clamping block to approach or move away from the lower clamping seat. A second cylinder is connected inside the receiving cavity and is located on the side of the upper clamping block and the lower clamping seat. When the second cylinder is fully extended, the distance L between the front end of the second cylinder and the front end of the clamping body is the same as the length of the part, and the lower clamping seat is located at the center of the length L. The end cover is connected to the clamping body, and a rotary joint is connected to the end cover. The first cylinder, the rotating cylinder, and the second cylinder are all connected to the rotary joint.

[0006] A further improvement of this utility model is that the clamping body is cylindrical in shape, and the front end of the clamping body is provided with two concentric mounting holes. The first cylinder and the rotary cylinder are respectively housed in the two mounting holes and fixed with screws.

[0007] A further improvement of this utility model is that the upper clamping block is rotatably connected to the power output end of the first cylinder, the power output end of the rotating cylinder is connected to a turntable, the lower clamping seat is connected to the turntable, and the turntable is provided with a V-shaped groove for accommodating parts.

[0008] A further improvement of this utility model is that a base is provided inside the accommodating cavity, and the second cylinder is laterally connected to the base.

[0009] A further improvement of this utility model is that the end cap is connected to the rear end of the clamp body by a long screw, and the stator of the rotary joint is connected to the center of the end cap and accommodated in the cavity between the end cap and the clamp body.

[0010] A further improvement of this utility model is that the clamp body is provided with a first channel, a second channel, a third channel and a fourth channel. One end of the intake pipe A and the exhaust pipe A are connected to the first cylinder, and the other end passes through the first channel and is connected to the rotary joint. One end of the intake pipe B and the exhaust pipe B are connected to the rotary cylinder, and the other end passes through the second channel and is connected to the rotary joint. One end of the intake pipe C is connected to the second cylinder, and the other end passes through the fourth channel and is connected to the rotary joint. One end of the exhaust pipe C is connected to the second cylinder, and the other end passes through the third channel and is connected to the rotary joint.

[0011] A further improvement of this utility model is that the rear end of the end cover is provided with a flange for connecting the machine tool spindle.

[0012] A further improvement of this utility model is that the rotary joint is a three-in-three-out type.

[0013] The beneficial effects of this utility model are: This utility model relates to a double-end machining clamping device for shaft parts. It has a simple and scientifically sound structure, requiring only one clamping operation when machining both ends of the part, which greatly improves work efficiency.

[0014] The present invention relates to a double-end machining clamping device for shaft parts, wherein the side of the clamping body is provided with a side hole to facilitate the assembly and maintenance of the internal second cylinder.

[0015] This utility model relates to a double-end machining clamping device for shaft parts. The clamping body is provided with a first channel, a second channel, a third channel and a fourth channel. The pipes are housed inside the clamping body and are not exposed, making it safer and more reliable to use. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a shaft-type part.

[0017] Figure 2 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 3 for Figure 2 The right view.

[0019] Figure 4 This is a schematic diagram of the structure of the present invention in its working state.

[0020] Figure 5 for Figure 4 The right view.

[0021] In the diagram: 1-clamp body, 101-end hole, 102-limiting hole, 103-mounting hole, 104-first channel, 105-second channel, 106-third channel, 107-fourth channel, 2-end cover, 201-flange, 3-upper clamping block, 4-lower clamping seat, 401-V-groove, 5-first cylinder, 501-inlet pipe A, 502-exhaust pipe A, 6-rotary cylinder, 601-inlet pipe B, 602-exhaust pipe B, 7-second cylinder, 701-inlet pipe C, 702-exhaust pipe C, 8-rotary joint, 9-cavity, 10-shaft parts, 1001-blind hole, 11-backing plate. Detailed Implementation

[0022] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0023] Example 1: As Figures 1-5 As shown, a double-end machining clamping device for shaft parts includes a clamping body 1, an end cover 2, an upper clamping block 3, and a lower clamping seat 4. The clamping body 1 has an end hole 101 at its front end and a side hole 102 on its side, with the side hole 102 communicating with the end hole 101 to form a receiving cavity. A first cylinder 5 and a 180° rotating cylinder 6 are respectively connected above and below the front end of the clamping body 1. The upper clamping block 3 is connected to the first cylinder 5, and the lower clamping seat 4 is connected to the rotating cylinder 6. The first cylinder 5... The upper clamping block 3 is driven to approach or move away from the lower clamping seat 4; a second cylinder 7 is connected inside the accommodating cavity, and the second cylinder 7 is located on the side of the upper clamping block 3 and the lower clamping seat 4; after the second cylinder 7 is fully extended, the distance L between the front end of the second cylinder 7 and the front end of the clamping body 1 is the same as the length of the part, and the lower clamping seat 4 is located at the center of the length L; the end cover 2 is connected to the clamping body 1, and a rotary joint 8 is connected to the end cover 2. The first cylinder 5, the rotary cylinder 6 and the second cylinder 7 are all connected to the rotary joint 8.

[0024] The clamp body 1 has a cylindrical structure. The front end of the clamp body 1 has two concentric mounting holes 103. The first cylinder 5 and the rotary cylinder 6 are respectively housed in the two mounting holes 103 and fixed with screws.

[0025] The upper clamping block 3 is rotatably connected to the power output end of the first cylinder 5, the power output end of the rotary cylinder 6 is connected to a turntable, the lower clamping seat 4 is connected to the turntable, and the turntable is provided with a V-groove 401 for accommodating parts.

[0026] A base is provided inside the accommodating cavity, and the second cylinder 7 is laterally connected to the base.

[0027] The end cap 2 is connected to the rear end of the clamp body 1 by a long screw, and the stator of the rotary joint 8 is connected to the center of the end cap 2 and housed in the cavity 9 between the end cap 2 and the clamp body 1.

[0028] The rear end of the end cover 2 is provided with a flange 201 for connecting the machine tool spindle.

[0029] Rotary joint 8 is a three-in-three-out type.

[0030] Example 2: This example is a further improvement on Example 1. The main improvement is that in Example 1, the pipes of each cylinder are exposed, and the high-speed rotation of the clamp poses a significant safety hazard; while in this example, the above defects can be avoided. Specifically: The clamp body 1 is provided with a first channel 104, a second channel 105, a third channel 106, and a fourth channel 107. One end of the intake pipe A501 and the exhaust pipe A502 are connected to the first cylinder 5, and the other end passes through the first channel 104 and is connected to the rotary joint 8. One end of the intake pipe B601 and the exhaust pipe B602 are connected to the rotary cylinder 6, and the other end passes through the second channel 105 and is connected to the rotary joint 8. One end of the intake pipe C701 is connected to the second cylinder 7, and the other end passes through the fourth channel 107 and is connected to the rotary joint 8. One end of the exhaust pipe C702 is connected to the second cylinder 7, and the other end passes through the third channel 106 and is connected to the rotary joint 8. In this embodiment, the clamp body 1 is provided with a first channel 104, a second channel 105, a third channel 106, and a fourth channel 107. The pipes are housed inside the clamp body 1 and are not exposed, making them safer and more reliable to use.

[0031] Apart from the above, this embodiment is exactly the same as Embodiment 1, and will not be described again here.

[0032] The specific working principle of this utility model is as follows: When this utility model is in operation, it is connected to the spindle of the CNC machine tool via flange 201. The solenoid valve is connected to the air source and the PLC controller of the CNC machine tool. The first cylinder 5, the rotary cylinder 6 and the second cylinder 7 are connected to the solenoid valve.

[0033] The operator places the shaft part 10 on the lower clamp 4. Then, the operator places a metal backing plate 11 on the front end of the clamp body 1. The second cylinder 7 extends, pushing the shaft part 10 to move and contact the backing plate 11. The backing plate 11 prevents the shaft part 10 from protruding from the front end of the clamp due to inertia. At this time, the shaft part 10 is exactly at the length L position, that is, the lower clamp 4 is exactly at the center of the shaft part 10. The first cylinder 5 extends, the second cylinder 7 retracts, and the upper pressure block contacts the shaft part 10 to complete the clamping. At this time, the shaft part 10 is concentric with the clamp body 1, the flange 201, and the spindle of the CNC machine tool. The CNC machine tool can then perform boring machining on the blind hole 1001 at one end of the shaft. After machining, the rotary cylinder 6 drives the shaft part 10 to rotate 180° to change direction, and the CNC machine tool can then perform boring machining on the blind hole 1001 at the other end of the shaft.

[0034] This utility model has a simple and scientifically sound structure, requiring only one clamping operation when processing both ends of the part, which greatly improves work efficiency.

[0035] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent transformations or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A double-end machining clamping device for shaft-type parts, characterized in that: The clamping device includes a clamping body (1), an end cap (2), an upper clamping block (3), and a lower clamping seat (4). The clamping body (1) has an end hole (101) at its front end and a side hole (102) at its side, which communicates with the end hole (101) to form a receiving cavity. A first cylinder (5) and a 180° rotating cylinder (6) are connected to the upper and lower ends of the clamping body (1), respectively. The upper clamping block (3) is connected to the first cylinder (5), and the lower clamping seat (4) is connected to the rotating cylinder (6). The first cylinder (5) drives the upper clamping block (3) to approach or... The second cylinder (7) is connected to the cavity of the upper clamping block (3) and the lower clamping block (4). After the second cylinder (7) is fully extended, the distance L between the front end of the second cylinder (7) and the front end of the clamping body (1) is the same as the length of the part, and the lower clamping block (4) is located at the center of the length L. The end cap (2) is connected to the clamping body (1), and a rotary joint (8) is connected to the end cap (2). The first cylinder (5), the rotary cylinder (6) and the second cylinder (7) are all connected to the rotary joint (8).

2. The double-end machining clamping device for shaft parts as described in claim 1, characterized in that: The clamping body (1) is cylindrical in shape. The front end of the clamping body (1) is provided with two concentric mounting holes (103). The first cylinder (5) and the rotary cylinder (6) are respectively housed in the two mounting holes (103) and fixed with screws.

3. A double-end machining clamping device for shaft parts as described in claim 1 or 2, characterized in that: The upper clamping block (3) is rotatably connected to the power output end of the first cylinder (5), the power output end of the rotary cylinder (6) is connected to a turntable, the lower clamping seat (4) is connected to the turntable, and the turntable is provided with a V-groove (401) for accommodating parts.

4. The double-end machining clamping device for shaft parts as described in claim 1, characterized in that: The cavity is provided with a base, and the second cylinder (7) is laterally connected to the base.

5. The double-end machining clamping device for shaft parts as described in claim 1, characterized in that: The end cap (2) is connected to the rear end of the clamp body (1) by a long screw, and the stator of the rotary joint (8) is connected to the center of the end cap (2) and accommodated in the cavity (9) between the end cap (2) and the clamp body (1).

6. A double-end machining clamping device for shaft parts as described in claim 1 or 5, characterized in that: The clamping body (1) is provided with a first channel (104), a second channel (105), a third channel (106) and a fourth channel (107). One end of the intake pipe A (501) and the exhaust pipe A (502) are connected to the first cylinder (5), and the other end passes through the first channel (104) and is connected to the rotary joint (8). One end of the intake pipe B (601) and the exhaust pipe B (602) are connected to the rotary cylinder (6), and the other end passes through the second channel (105) and is connected to the rotary joint (8). One end of the intake pipe C (701) is connected to the second cylinder (7), and the other end passes through the fourth channel (107) and is connected to the rotary joint (8). One end of the exhaust pipe C (702) is connected to the second cylinder (7), and the other end passes through the third channel (106) and is connected to the rotary joint (8).

7. The double-end machining clamping device for shaft parts as described in claim 1, characterized in that: The end cover (2) is provided with a flange (201) for connecting the machine tool spindle at its rear end.

8. The double-end machining clamping device for shaft parts as described in claim 1, characterized in that: The rotary joint (8) is a three-in-three-out type.

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