Bell housing ball groove machining tool clamp with gas detection function

Abstract

The utility model relates to a work fixture with an air detection function for processing a ball groove of a bell housing, and effectively solves the problems that the rotation state of the fixture is influenced by the existing air detection structure arranged on the rear side, and the good air tightness of the whole work fixture cannot be ensured when the work fixture rotates; and the state of the tool is inconvenient to monitor at any time when the clamp is in an operation state. According to the bell housing ball groove machining tool clamp with the air detection function, air tightness detection can be conducted on the interior of the tool clamp by inflating the interior of the lateral air channel, the air inlet pipeline in the device is arranged on the side of the clamp, and the situation that the air inlet pipeline is arranged behind the clamp and influences the clamp can be avoided; the gas distribution ring can seal the gas inlet groove all the time, it is guaranteed that good sealing performance is still achieved between the gas distribution ring and the collet chuck base body when the tool clamp rotates, the tool clamp can still conduct gas tightness detection in the running state, and normal turn-milling machining is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the technical field of tooling fixtures for bell-shaped shell processing, specifically relating to a tooling fixture for bell-shaped shell ball track processing with gas detection function. Background Technology

[0002] The bell-shaped housing is a major component of the ball-cage constant velocity universal joint. It transmits power and torque in the transmission device together with the channels and other connecting parts. When machining the channels of the bell-shaped housing, turning and milling processes are required.

[0003] Most existing milling and turning equipment with air tightness detection functions use rear air intake. After the tooling is installed inside the fixture, air is injected into the fixture from the rear using an external inflation device. The change in air pressure is observed to check whether the tooling is properly assembled. However, due to the large number of existing tooling fixture models and the different usage scenarios and conditions, the installation position of the air detection structure is also limited. The existing air detection structure set at the rear of the fixture may affect the rotation of the fixture, and the tooling fixture may also shift when rotating. Furthermore, the existing air detection structure cannot guarantee that the tooling fixture still has good air tightness when rotating, so it cannot monitor the status of the tooling at all times while the fixture is in operation, which is not convenient for use when machining bell-shaped shell ball tracks. Utility Model Content

[0004] To address the above issues and overcome the shortcomings of existing technologies, this utility model provides a tooling fixture for machining bell-shaped shell ball tracks with an air detection function. This tooling fixture avoids the impact of the air inlet pipe being located behind the fixture, and the air distribution ring is sealed to the outside of the air inlet groove, ensuring the overall sealing of the air inlet groove. This ensures that the air distribution ring keeps the air inlet groove sealed while the collet base body rotates, guaranteeing good sealing between the air distribution ring and the collet base body during rotation. This allows the tooling fixture to perform airtightness testing during operation, thereby constantly monitoring the fixture's fixed state to detect any deviation in real time and ensuring the normal operation of turning and milling.

[0005] A tooling fixture for machining bell-shaped shell ball tracks with gas detection function includes a collet base body. An air distribution ring for distributing gas to the collet base body is sleeved on its exterior. Both sides of the air distribution ring have locking notches to fix its position. An air inlet is provided on the outer side of the air distribution ring, and annular grooves are provided on the top and bottom of its inner side. An air inlet groove is provided on the outer side of the collet base body at a location corresponding to the middle of the air distribution ring. A lateral air passage for injecting gas into the collet base body is provided inside the collet base body and communicates with the air inlet groove. An air outlet communicating with the lateral air passage is provided at the center of the collet base body.

[0006] Preferably, a collet puller is installed at the center of the shaft inside the collet base body, and a collet cone is fixedly installed on the upper surface of the collet puller. The collet cone is provided with a collet chuck for fixing the workpiece inside and a pressure ring is sleeved on the outside. The pressure ring is fixedly installed at the top of the collet base body, and the gas distribution ring is rotatably connected between the pressure ring and the collet base body.

[0007] Preferably, the lateral air passage inside the collet base body has its air inlet end near the air distribution ring located on the side of the collet base body, and the end of the lateral air passage near the center of the collet base body is arranged in an annular air passage structure.

[0008] Preferably, the air intake groove corresponds to the middle of the air distribution ring, and the air intake groove is disposed between two annular grooves, with the air intake end of the lateral air passage opened inside the air intake groove.

[0009] Preferably, the number of air outlets is several, and the several air outlets are arranged in a ring array on the inner bottom wall of the collet base body, and the several air outlets are all connected to the ring air passage structure of the lateral air passage.

[0010] Preferably, a pull ring cylinder is fixedly installed on the lower surface of the collet buckle, and the pull ring cylinder passes through the inner bottom wall of the collet base body, and its bottom end is connected to a pull ring disc body by a thread. A pull rod is fixedly installed inside the pull ring disc body, and both the pull ring disc body and the pull rod are located on the lower surface of the collet base body.

[0011] The beneficial effects of the above technical solution are as follows:

[0012] This bell-shaped shell ball track machining fixture with air detection function is designed with an air distribution ring, an air inlet groove, a lateral air passage, and an air outlet. The air inlet end of the lateral air passage is located on the side of the collet base body, allowing air to be injected into the lateral air passage to perform airtightness testing on the interior of the fixture. The air inlet pipe is located on the side of the fixture, avoiding the impact of the air inlet pipe being located at the rear of the fixture. The air distribution ring is sealed to the outside of the air inlet groove, ensuring the overall sealing of the air inlet groove. This ensures that the air distribution ring always seals the air inlet groove while the collet base body rotates, maintaining good sealing between the air distribution ring and the collet base body during fixture rotation. This allows the fixture to perform airtightness testing even during operation, enabling real-time monitoring of the fixture's fixed status to detect any deviation and ensuring the normal operation of turning and milling. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the collet pull buckle of this utility model;

[0015] Figure 3 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0016] Figure 4 This is a cross-sectional schematic diagram of the present invention;

[0017] Figure 5 This is a schematic cross-sectional view of the main body of the collet base of this utility model;

[0018] Figure 6 This is a schematic diagram of the valve train of this utility model;

[0019] Figure 7 This is a schematic diagram of the pull ring disc and pull rod of this utility model.

[0020] In the diagram: 1. Collet base body; 2. Gas distribution ring; 3. Clamping notch; 4. Air inlet; 5. Annular groove; 6. Air inlet groove; 7. Lateral air passage; 8. Air outlet; 9. Collet pull buckle; 10. Collet cone; 11. Collet chuck head; 12. Pressure ring; 13. Pull ring cylinder; 14. Pull ring disc; 15. Pull rod. Detailed Implementation

[0021] The foregoing and other technical contents, features and effects of this utility model are described in conjunction with the appendix below. Figures 1 to 7 The embodiments are described in detail below.

[0022] This embodiment provides a tooling fixture for machining bell-shaped shell ball tracks with gas detection function, as shown in the attached document. Figure 1-7As shown, the device includes a collet base body 1. A collet pull buckle 9 is installed at the axis inside the collet base body 1, and a collet cone 10 is fixedly installed on the upper surface of the collet pull buckle 9. The collet cone 10 is provided with a collet chuck 11 for fixing the workpiece inside, and a pressure ring 12 is sleeved on the outside. The operator installs the milling cutter in the collet chuck 11. The pressure ring 12 is fixedly installed at the top of the collet base body 1. A gas distribution ring 2 is rotatably connected between the pressure ring 12 and the collet base body 1. A pull ring cylinder 13 is fixedly installed on the lower surface of the collet pull buckle 9, and the pull ring cylinder 13 passes through the inner bottom wall of the collet base body 1. Its bottom end is connected to a pull ring disc 14 by a thread. A pull rod 15 is fixedly installed inside the pull ring disc 14, and both the pull ring disc 14 and the pull rod 15 are located on the lower surface of the collet base body 1.

[0023] The outer side of the collet base body 1 is fitted with a gas distribution ring 2 for distributing gas to the collet base body 1. Both sides of the gas distribution ring 2 are provided with locking notches 3 to fix its position. The gas distribution ring 2 can be fixed by engaging with the locking notches 3 on both sides of the gas distribution ring 2 through the external fixing structure. The outer side of the gas distribution ring 2 is provided with an air inlet 4 and the top and bottom of the inner side are provided with annular grooves 5. The air inlet 4 is connected to an external inflation device through an air passage. The external inflation device can inflate the air inlet 4 through the air passage, thereby inflating the interior of the gas distribution ring 2. The interior of the annular groove 5 can be sealed with a matching sealing strip. Both sealing strips are pressed against the outer surface of the collet base body 1.

[0024] An air inlet groove 6 is provided on the outer side of the collet base body 1, corresponding to the middle of the air distribution ring 2. The air inlet groove 6 corresponds to the middle of the air distribution ring 2 and is located between two annular grooves 5. Two sealing strips are respectively located above and below the air inlet groove 6, thereby forming an independent sealed space between the two sealing strips. The air inlet 4 on the side of the air distribution ring 2 communicates with the space between the two sealing strips. A lateral air passage 7 is provided inside the collet base body 1 for injecting air into it. The lateral air passage 7 is connected to the air inlet groove 6. The air inlet end of the lateral air passage 7 inside the collet base body 1 near the air distribution ring 2 is opened on the side of the collet base body 1. The end of the lateral air passage 7 near the center of the collet base body 1 is surrounded by an annular air passage structure. The air inlet end of the lateral air passage 7 is opened inside the air inlet groove 6. When the external inflation device inflates the air distribution ring 2 through the air inlet 4, the gas entering the air distribution ring 2 will flow along the air inlet groove 6 and enter the lateral air passage 7.

[0025] An air outlet 8 is provided at the center of the inside of the collet base body 1, which is connected to the side air passage 7. There are several air outlets 8, and they are arranged in a ring array on the inner bottom wall of the collet base body 1. All the air outlets 8 are connected to the ring air passage structure of the side air passage 7. The gas in the side air passage 7 will be discharged from three air outlets 8 and enter the interior of the collet base body 1 to perform airtightness testing on the milling and turning tools.

[0026] After the milling cutter is installed into the tooling fixture, air is injected into the air distribution ring 2 through an external air inflation device. The gas enters the interior of the collet base body 1 through the air inlet groove 6 and the side air passage 7. When the milling cutter is installed in place, the gas injected into the collet base body 1 will not leak outward. Therefore, if the air pressure inside the collet base body 1 does not change after sufficient gas is injected, it indicates that the air outlet 8 is completely sealed to the milling cutter and has good airtightness, thus proving that the milling cutter is installed in place. Conversely, if the air pressure inside the collet base body 1 is low or continuously decreasing after sufficient gas is injected, it indicates that there is a gap between the air outlet 8 and the installation part of the milling cutter, proving that the milling cutter is not installed in place, and the operator needs to adjust the milling cutter.

[0027] In summary, the following are the steps for using this tooling fixture for machining bell-shaped shell ball tracks with gas detection function:

[0028] 1. After the operator installs the milling cutter into the tooling fixture, a certain amount of gas can be injected into the collet base body 1 through an external inflation device, and the change in air pressure inside the collet base body 1 can be detected.

[0029] 2. When the air pressure inside the collet base body 1 does not change, it indicates that the air outlet 8 is completely sealed to the milling cutter and has good air tightness inside, which proves that the milling cutter is installed in place.

[0030] 3. When the air pressure inside the collet base body 1 is detected to be low or continuously decreasing, it indicates that there is a gap between the air outlet 8 and the mounting part of the milling cutter, proving that the milling cutter is not installed in place, and the operator needs to adjust the milling cutter.

[0031] 4. While the milling cutter is rotating, air can still be pumped into it. By monitoring the changes in internal air pressure in real time, the fixed state of the milling cutter can be monitored, preventing the milling cutter from shifting during use and affecting the machining quality of the bell-shaped shell.

[0032] The above description is only for illustrating the present utility model. It should be understood that the present utility model is not limited to the above embodiments, and various modifications that conform to the concept of the present utility model are within the protection scope of the present utility model.

Claims

1. A tooling fixture for machining bell-shaped shell ball tracks with gas detection function, comprising a collet base body (1), characterized in that: The outer side of the collet base body (1) is fitted with a gas distribution ring (2) for distributing gas to the collet base body (1). Both sides of the gas distribution ring (2) are provided with locking notches (3) to fix its position. The outer side of the gas distribution ring (2) is provided with an air inlet (4) and the top and bottom of the inner side are provided with annular grooves (5). The outer side of the collet base body (1) is provided with an air inlet groove (6) corresponding to the middle part of the gas distribution ring (2). The inside of the collet base body (1) is provided with a lateral air passage (7) for injecting gas into it and the lateral air passage (7) is connected to the air inlet groove (6). The center of the inside of the collet base body (1) is provided with an air outlet (8) connected to the lateral air passage (7).

2. The tooling fixture for machining bell-shaped shell ball tracks with gas detection function according to claim 1, characterized in that: A collet buckle (9) is installed at the center of the shaft inside the collet base body (1), and a collet cone (10) is fixedly installed on the upper surface of the collet buckle (9). The collet cone (10) is provided with a collet chuck (11) for fixing the workpiece inside, and a pressure ring (12) is sleeved on the outside. The pressure ring (12) is fixedly installed at the top of the collet base body (1), and the air distribution ring (2) is rotatably connected between the pressure ring (12) and the collet base body (1).

3. The tooling fixture for machining bell-shaped shell ball tracks with gas detection function according to claim 1, characterized in that: The side air passage (7) inside the collet base body (1) is located on the side of the collet base body (1) near the air distribution ring (2), and the side air passage (7) near the center of the collet base body (1) is arranged in a ring-shaped air passage structure.

4. The tooling fixture for machining bell-shaped shell ball tracks with gas detection function according to claim 3, characterized in that: The air intake groove (6) corresponds to the middle part of the air distribution ring (2), and the air intake groove (6) is located between two annular grooves (5). The air intake end of the lateral air passage (7) is opened inside the air intake groove (6).

5. The tooling fixture for machining bell-shaped shell ball tracks with gas detection function according to claim 1, characterized in that: The number of air outlets (8) is several, and the several air outlets (8) are arranged in a ring array on the inner bottom wall of the collet base body (1). The several air outlets (8) are all connected to the ring air passage structure of the side air passage (7).

6. The tooling fixture for machining bell-shaped shell ball tracks with gas detection function according to claim 2, characterized in that: A pull ring cylinder (13) is fixedly installed on the lower surface of the collet buckle (9), and the pull ring cylinder (13) passes through the inner bottom wall of the collet base body (1), and its bottom end is connected to a pull ring disc (14) by a thread. A pull rod (15) is fixedly installed inside the pull ring disc (14), and both the pull ring disc (14) and the pull rod (15) are located on the lower surface of the collet base body (1).

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