Numerical control tool roundness detection main shaft

Abstract

The utility model relates to the technical field of tool roundness detection auxiliary devices, in particular to a numerical control tool roundness detection main shaft, which comprises a main shaft body, a clamp and a bearing, the bearing is rotatably arranged in the main shaft body, the clamp is arranged at one end of the bearing, and the clamp rotates at one end of the main shaft body; a crank is inserted into the other end of the bearing, a locking assembly connected with the bearing is arranged on the outer wall of the crank, a connector is transversely and fixedly connected to the outer wall of the crank, a magnet ring is arranged on the outer wall of the connector, a handle is rotationally connected to one end of the connector, and a positioning sleeve is slidably connected to the outer wall of the handle; the extended handle is folded towards the edge of the crank, the occupied space of the crank is reduced, the main shaft body is convenient to transport and store, when the handle needs to be used, the operation is simple and convenient, the pressing block moves downwards and is separated from the bearing, the occupied space of the main shaft body can be further reduced, and the bearing body is more flexible and convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of tool roundness detection auxiliary devices, in particular to a CNC tool roundness detection spindle. Background Art

[0002] The primary purpose of tool roundness testing is to ensure that the tool's geometry meets machining requirements, thereby improving machining accuracy and surface quality. Testing tool roundness allows us to assess the quality of the tool's grinding process and ensure its stable and efficient operation during use.

[0003] At present, when testing the roundness of CNC tools, an auxiliary spindle clamping device is required to fix the tool and rotate it at the probe part of the roundness detector to detect the roundness of the tool. The existing rocker-type auxiliary bearing manually rotates the bearing after clamping the tool to drive the tool fixture to rotate. However, the existing manual rocker-type spindle has a rocker handle extending outward from the bearing, which causes the overall spindle to occupy a larger space and is inconvenient to transport and store the spindle body. Utility Model Content

[0004] The purpose of the utility model is to provide a CNC tool roundness detection spindle to solve the problem of the existing manual rocker spindle proposed in the above background technology, in which the rocker handle is located at the bearing and extends outward, resulting in the overall spindle occupying a larger space and inconvenient transportation and storage of the spindle body.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: including a main shaft body, a clamp, and a bearing, the bearing is rotatably arranged inside the main shaft body, the clamp is arranged at one end of the bearing, and the clamp is located at one end of the main shaft body and rotates; a crank is connected to the other end of the bearing, and the outer wall of the crank is provided with a locking assembly connected to the bearing, the outer wall of the crank is laterally fixedly connected to a connector, the outer wall of the connector is provided with a magnet ring, one end of the connector is rotatably connected to a handle, the outer wall of the handle is slidably connected to a positioning sleeve, and one end of the positioning sleeve is magnetically connected to the magnet ring.

[0006] Preferably, the locking assembly includes a pressing block, a connecting rod, and a return spring. The pressing block is arranged above the crank, and the connecting rod is arranged at the bottom of the pressing block. The two ends of the connecting rod are respectively slidably connected to the inside of the crank, the upper end of the pressing block is inserted into the bearing, and the return spring is fixedly connected to the bottom of the two ends of the connecting rod.

[0007] Preferably, the bearing and the outer wall of the crank are respectively provided with mounting grooves matching the pressing block, the pressing block is located in the mounting grooves, and the two mounting grooves are opposite to each other up and down.

[0008] Preferably, two guide grooves are longitudinally opened inside the crank, the two ends of the connecting rod are respectively inserted into the two guide grooves, and the reset spring is located in the guide grooves.

[0009] Preferably, the outer wall of the handle is provided with two notches matching the connector, and a rotating shaft is provided at the connection between the handle and the connector.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] 1. Fold the extended handle toward the edge of the crank to reduce the space occupied by the crank and facilitate the transportation and storage of the spindle body. When the handle is needed, rotate one end of the handle to be parallel to the connector, slide the positioning sleeve to the magnet ring on one end of the connector, and constrain the positioning sleeve between the connector and the handle through the magnet ring. The rotating part of the handle and the connector is fixed, and the handle can be used normally. The operation is simple and convenient.

[0012] 2. Move the pressing block downward and disconnect it from the bearing to remove the entire crank from the bearing rod, which can further reduce the space occupied by the main shaft body and make the use of the bearing body more flexible and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0014] Figure 2 This is a schematic diagram of the folding structure of the handle of the utility model;

[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of the connector and handle of the utility model;

[0016] Figure 4 This is a schematic diagram of the cross-sectional structure of the bearing and crank of the utility model;

[0017] Figure 5 For this utility model Figure 4 Schematic diagram of the A-enlarged structure.

[0018] In the figure: 1. Spindle body; 2. Clamp; 3. Bearing; 31. Mounting slot; 4. Crank; 5. Connector; 6. Handle; 7. Magnet ring; 8. Positioning sleeve; 9. Locking assembly; 91. Press block; 92. Connecting rod; 93. Return spring; 10. Rotating shaft. DETAILED DESCRIPTION

[0019] The following will be combined with the 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 implementation regulations 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. Example

[0020] See also Figure 1-5 , as shown in the figure: This embodiment is a preferred implementation scheme in the present technical solution, a CNC tool roundness detection spindle, including a spindle body 1, a fixture 2, and a bearing 3, the bearing 3 is rotatably arranged inside the spindle body 1, the fixture 2 is arranged at one end of the bearing 3, and the fixture 2 is located at one end of the spindle body 1 and rotates; the other end of the bearing 3 is plugged with a crank 4, and the outer wall of the crank 4 is provided with a locking component 9 connected to the bearing 3, the outer wall of the crank 4 is laterally fixedly connected with a connector 5, the outer wall of the connector 5 is provided with a magnet ring 7, one end of the connector 5 is rotatably connected to a handle 6, the outer wall of the handle 6 is slidably connected to a positioning sleeve 8, and one end of the positioning sleeve 8 is magnetically connected to the magnet ring 7.

[0021] like Figure 4 、 5 As shown, the locking assembly 9 includes a pressing block 91, a connecting rod 92, and a return spring 93. The pressing block 91 is arranged above the crank 4, and the connecting rod 92 is arranged at the bottom of the pressing block 91. The two ends of the connecting rod 92 are respectively slidably connected to the inside of the crank 4. The upper end of the pressing block 91 is inserted into the bearing 3, and the return spring 93 is fixedly connected to the bottom of the two ends of the connecting rod 92. When the crank 4 is connected to the bearing 3, the pressing block 91 is pressed downward, and one end of the crank 4 is inserted into the inside of the bearing 3. When the pressing block 91 moves to the mounting groove 31 of the bearing 3, the pressing block 91 is pushed upward by the return spring 93, so that the pressing block 91 is inserted into the inside of the bearing 3, completing the connection between the bearing 3 and the crank 4, and the installation is convenient.

[0022] like Figure 5 As shown, the bearing 3 and the outer wall of the crank 4 are respectively provided with mounting grooves 31 matching the pressing block 91, and the pressing block 91 is located in the mounting grooves 31. The two mounting grooves 31 are opposite to each other up and down, and the mounting grooves 31 respectively provided through the bearing 3 and the outer wall of the crank 4 are used to install the pressing block 91.

[0023] like Figure 5 As shown, two guide grooves are longitudinally opened inside the crank 4, and the two ends of the connecting rod 92 are respectively inserted into the two guide grooves. The reset spring 93 is located in the guide groove, passing through the guide groove opened inside the crank 4, and the two ends of the connecting rod 91 are respectively inserted into the guide groove, which is used to limit the movement of the pressing block 91 and is also used to connect with the reset spring 93.

[0024] like Figure 1 、 2As shown, the outer wall of the handle 6 is provided with two notches that match the connector 5, and a rotating shaft 10 is provided at the connection between the handle 6 and the connector 5. The notch provided on the outer wall of the handle 6 is used to pass through the connector 5 when the handle 6 is rotated. The rotating shaft 10 provided at the connection between the handle 6 and the connector 5 allows the handle 6 to be limited to rotate at one end of the connector 5.

[0025] In this embodiment, first, all parts are installed. The handle 6 used for rotating the rotating shaft 10 bearing 3 can be located at the connector 5 provided at one end of the crank 4 and rotated. The extended handle 6 is folded toward the edge of the crank 4 to reduce the space occupied by the crank 4. The handle 6 fits tightly with the connector 5 and will not rotate easily without external force, which is convenient for transporting and storing the main shaft body 1. When the handle 6 needs to be used, one end of the handle 6 is rotated to be parallel to the connector 5, and the positioning sleeve 8 is slid to the magnet ring 7 provided at one end of the connector 5. The positioning sleeve 8 is constrained and fixed between the connector 5 and the handle 6 by the magnet ring 7. The rotating parts of the handle 6 and the connector 5 are fixed, and the handle 6 can be used normally. The operation is simple and convenient.

[0026] Push the pressing block 91 downward so that it moves downward and breaks away from the connection with the bearing 3, and the entire crank 4 can be removed from the bearing 3 rod, which can further reduce the space occupied by the main shaft body 1 and make the use of the bearing 3 body more flexible and convenient.

[0027] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, they can make several simple deductions or substitutions without departing from the concept of the utility model, which should be regarded as falling within the scope of protection determined by the claims submitted for the utility model.

Claims

1. A spindle for detecting roundness of a numerically controlled tool, comprising a spindle body (1), a fixture (2), and a bearing (3), wherein the bearing (3) is rotatably arranged inside the spindle body (1), the fixture (2) is arranged at one end of the bearing (3), and the fixture (2) is located at one end of the spindle body (1) and rotates; characterized in that: The other end of the bearing (3) is plugged with a crank (4), the outer wall of the crank (4) is provided with a locking component (9) connected to the bearing (3), the outer wall of the crank (4) is transversely fixedly connected to a connector (5), the outer wall of the connector (5) is provided with a magnet ring (7), one end of the connector (5) is rotatably connected to a handle (6), the outer wall of the handle (6) is slidably connected to a positioning sleeve (8), and one end of the positioning sleeve (8) is magnetically connected to the magnet ring (7).

2. The CNC tool roundness detection spindle according to claim 1, characterized in that: The locking assembly (9) includes a pressing block (91), a connecting rod (92), and a return spring (93). The pressing block (91) is arranged above the crank (4), and the connecting rod (92) is arranged at the bottom of the pressing block (91). The two ends of the connecting rod (92) are respectively slidably connected to the inside of the crank (4). The upper end of the pressing block (91) is inserted into the bearing (3), and the return spring (93) is fixedly connected below the two ends of the connecting rod (92).

3. The CNC tool roundness detection spindle according to claim 1, characterized in that: The outer walls of the bearing (3) and the crank (4) are respectively provided with mounting grooves (31) that match the pressing block (91), the pressing block (91) is located in the mounting grooves (31), and the two mounting grooves (31) are opposed to each other up and down.

4. The CNC tool roundness detection spindle according to claim 2, characterized in that: Two guide grooves are longitudinally provided inside the crank handle (4), and the two ends of the connecting rod (92) are respectively inserted into the two guide grooves, and the return spring (93) is located in the guide grooves.

5. The CNC tool roundness detection spindle according to claim 1, characterized in that: The outer wall of the handle (6) is provided with two notches matching the connector (5), and a rotating shaft (10) is provided at the connection between the handle (6) and the connector (5).

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