Tool for cutting circumferential groove of elastic expansion sleeve

Abstract

The utility model discloses an elastic expansion sleeve circumferential groove cutting tool which comprises a seat body, a rotating disc, a gland and an indexing driving assembly, the gland is installed on the seat body through a bolt and forms an installation cavity, the rotating disc is rotatably installed in the installation cavity, and the indexing driving assembly drives and controls the rotating angle of the rotating disc. The indexing driving assembly comprises a center shaft, a driving wheel, a driven wheel, a transmission part, a sub-angle positioner and a plurality of magnetic blocks, the center shaft is arranged on the base, the driving wheel is rotationally arranged on the center shaft, the driven wheel is installed at the center of the rotating disc, the transmission part is in transmission connection with the driving wheel and the driven wheel, and the sub-angle positioner is rotationally installed at the top of the center shaft; the locking end of the sub-angle positioner is matched with the driving wheel, a plurality of positioning holes are evenly formed in the rotating disc in the circumferential direction, the magnetic blocks are arranged in the positioning holes and the working end of the sub-angle positioner respectively, and the magnetic blocks on the working end of the sub-angle positioner are matched with the magnetic blocks in the positioning holes. The cutting tool is convenient to operate, efficient and stable in machining effect.

Description

Technical Field

[0001] This utility model relates to the field of workpiece cutting and clamping fixture technology, and in particular to an elastic expansion sleeve peripheral groove cutting fixture. Background Technology

[0002] Expanding sleeves belong to the category of general-purpose mechanical components, used to connect two shafts (driving shaft and driven shaft) in different mechanisms to rotate together and transmit torque. In high-speed, heavy-load power transmission, some expanding sleeves also serve to buffer, dampen vibrations, and improve the dynamic performance of the shaft system. To achieve the buffering and vibration damping effect, multiple grooves are cut into the peripheral wall of the expanding sleeve according to actual needs. If the number of grooves is small or the expanding sleeve is small, it can be directly processed using a chuck on a machine tool. However, some large expanding sleeves or those with many grooves require separate tooling for fixation and processing using cutting equipment, such as wire EDM equipment.

[0003] Currently, in actual processing, there is no tooling that perfectly matches the expansion sleeve. Generally, the expansion sleeve is bolted to a fixed plate, which is then mounted on the worktable of the cutting equipment. To cut one groove, the fixed plate or the expansion sleeve on it must be disassembled so that it can be rotated at a certain angle to cut the next groove. This operation is cumbersome, has low processing efficiency, and multiple clamping operations are prone to processing errors, affecting the processing quality. Therefore, there is an urgent need for a convenient, efficient, and stable tooling for cutting elastic expansion sleeve peripheral grooves. Utility Model Content

[0004] The purpose of this utility model is to provide an elastic expansion sleeve peripheral groove cutting fixture to solve the problems of existing expansion sleeve cutting fixtures being cumbersome to operate, having low processing efficiency, and being prone to processing errors due to multiple clamping, which affects processing quality.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A flexible expansion sleeve peripheral groove cutting fixture includes a base, a turntable, a pressure cap, and an indexing drive assembly. The pressure cap is bolted to the base and forms a mounting cavity. The turntable is rotatably mounted within the mounting cavity. The indexing drive assembly drives and controls the rotation angle of the turntable.

[0007] The indexing drive assembly includes a central shaft, a driving wheel, a driven wheel, a transmission component, a corner positioner, and multiple magnetic blocks. The central shaft is mounted on the base, the driving wheel is rotatably mounted on the central shaft, the driven wheel is mounted at the center of the turntable, the transmission component is connected to the driving wheel and the driven wheel, the corner positioner is rotatably mounted on the top of the central shaft, and the locking end of the corner positioner is adapted to the driving wheel. The turntable has multiple positioning holes evenly arranged circumferentially, and the magnetic blocks are respectively disposed in the positioning holes and on the working end of the corner positioner. The magnetic blocks on the working end of the corner positioner cooperate with the magnetic blocks in the positioning holes.

[0008] A further technical solution is as follows: the angle positioning device includes a crossbar, a spring, a card, and a hanging plate. The crossbar is rotatably mounted on the top of the central shaft. The spring is vertically mounted on the lug plate of the central shaft, and the top of the spring abuts against the crossbar. The card is slidably mounted on the crossbar and locked by bolts, and the card is adapted to the outer circumferential surface of the drive wheel. The hanging plate is rotatably mounted on one end of the crossbar, and the magnetic block is mounted on the bottom surface of the hanging plate.

[0009] A further technical solution is that a handle is provided at the other end of the crossbar.

[0010] A further technical solution is that the number of positioning holes is the same as the number of grooves on the expansion sleeve.

[0011] A further technical solution is that screws are provided on both sides of the base.

[0012] A further technical solution is that the pressure cap has a ring structure.

[0013] A further technical solution is that the cross-section of the turntable is a T-shaped structure.

[0014] A further technical solution is that the diameter of the driving wheel is larger than the diameter of the driven wheel, both the driving wheel and the driven wheel are synchronous belt pulleys, and the transmission component is a synchronous belt.

[0015] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0016] This invention proposes a cutting fixture for a circumferential groove using an elastic expansion sleeve. The expansion sleeve is bolted onto a turntable, and then the turntable is driven to rotate with the expansion sleeve via an indexing drive assembly. Each rotation automatically controls a specific rotation angle of the expansion sleeve, thereby positioning the groove to be processed. The rotation angle of the expansion sleeve is precise, ensuring the processing effect of the groove. Furthermore, there is no need to disassemble or reassemble the fixture or the expansion sleeve on the fixture during any groove processing, making the operation convenient, efficient, and providing stable processing results. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an elastic expansion sleeve peripheral groove cutting tool according to the present invention.

[0018] Figure 2 This utility model Figure 1 A schematic diagram of the structure of the central seat and the turntable.

[0019] Figure 3 This utility model Figure 2 A structural diagram from a top-down perspective.

[0020] Figure 4 This utility model Figure 1 A schematic diagram of the center-dividing angle locator.

[0021] Figure 5 This utility model Figure 1 A schematic diagram of the structure of the intermediate expansion sleeve.

[0022] Reference numerals in the attached drawings: 1. Base; 2. Turntable; 3. Pressure cap; 4. Indexing drive assembly; 5. Central shaft; 6. Drive wheel; 7. Driven wheel; 8. Transmission component; 9. Angle positioner; 10. Magnetic block; 11. Positioning hole; 12. Crossbar; 13. Spring; 14. Card; 15. Hanging plate; 16. Handle; 17. Expansion sleeve; 18. Screw. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Example 1:

[0030] This implementation example Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, a cutting fixture for a circumferential groove of an elastic expansion sleeve includes a base 1, a turntable 2, a pressure cap 3, and an indexing drive assembly 4. The pressure cap 3 is bolted to the base 1 and forms a mounting cavity. The turntable 2 is rotatably mounted in the mounting cavity. The indexing drive assembly 4 drives and controls the rotation angle of the turntable 2.

[0031] The indexing drive assembly 4 includes a central shaft 5, a driving wheel 6, a driven wheel 7, a transmission component 8, an angle positioner 9, and multiple magnetic blocks 10. The central shaft 5 is mounted on the base 1. The driving wheel 6 is rotatably mounted on the central shaft 5. The driven wheel 7 is mounted at the center of the turntable 2. The transmission component 8 is connected to the driving wheel 6 and the driven wheel 7. The angle positioner 9 is rotatably mounted on the top of the central shaft 5, and the locking end of the angle positioner 9 is adapted to the driving wheel 6. Multiple positioning holes 11 are evenly arranged around the turntable 2. Magnetic blocks 10 are respectively arranged in the positioning holes 11 and on the working end of the angle positioner 9. The magnetic blocks 10 on the working end of the angle positioner 9 cooperate with the magnetic blocks 10 in the positioning holes 11.

[0032] The working process of this utility model is as follows: First, according to the number of grooves to be processed on the expansion sleeve 17 (grooves are on the peripheral wall of the expansion sleeve 17), select the appropriate positioning hole 11 to participate in the cutting work, and put the magnetic block 10 into the positioning hole 11. Then, the bolt passes through the mounting hole on the expansion sleeve 17 and connects with the front of the turntable 2. The bolt firmly fixes the expansion sleeve 17 to the front of the turntable 2. Then, rotate the driving wheel 6, and drive the driven wheel 7 to rotate together with the turntable 2 through the transmission component 8 until the magnetic block 10 in one of the positioning holes 11 attracts the magnetic block 10 on the working end of the angle positioner 9. At this time, the locking end of the angle positioner 9 is matched with the driving wheel 6, that is, the locking end locks the driving wheel 6, making it unable to rotate, and the groove can be processed. After the groove is completed, release the locking end from the locking state of the driving wheel 6, and continue to rotate the driving wheel 6 in the same direction to process the second groove. Repeat the above steps until all the grooves on the expansion sleeve 17 are cut and processed. Finally, remove the processed expansion sleeve 17 and replace it with a new expansion sleeve.

[0033] It is worth noting that the number and spacing of the grooves on the expansion sleeve 17, especially the number, can be specifically controlled based on the positioning holes 11 on the turntable 2. Of course, the number of positioning holes 11 can also be pre-processed according to the manufacturing process of the expansion sleeve 17.

[0034] The positioning hole 11 can be a through threaded hole, in which a screw can be installed, which is beneficial for the installation and ejection of the magnetic block 10.

[0035] Preferably, such as Figure 4 As shown, the angle positioning device 9 includes a crossbar 12, a spring 13, a clip 14, and a hanging plate 15. The crossbar 12 is rotatably mounted on the top of the central shaft 5. The spring 13 is vertically mounted on the ear plate of the central shaft 5, and the top of the spring 13 abuts against the crossbar 12. The clip 14 is slidably mounted on the crossbar 12 and locked by bolts. The clip 14 is adapted to the outer circumferential surface of the drive wheel 6. The hanging plate 15 is rotatably mounted on one end of the crossbar 12, and the magnetic block 10 is mounted on the bottom surface of the hanging plate 15.

[0036] The magnetic block 10 on the hanging plate 15 is attracted by the magnetic block 10 in the positioning hole 11, which will tilt the crossbar 12 toward one end of the positioning hole 11, and the card 14 will be inserted into the tooth gap of the drive wheel.

[0037] Preferably, a handle 16 is provided at the other end of the crossbar 12.

[0038] The handle 16 allows personnel to easily move the crossbar 12 and release the locking state of the angle positioner 9 on the tooth surface of the drive wheel 6.

[0039] Preferably, the number of positioning holes 11 is the same as the number of slots on the expansion sleeve 17. This configuration, where the number of positioning holes 11 and slots is the same, is a preferred option and can reduce the number of machining operations required for the positioning holes 11.

[0040] Preferably, screws 18 are provided on both sides of the base 1.

[0041] The screw 18 can securely mount the base 1 onto the processing table of the wire cutting equipment.

[0042] Preferably, the cap 3 has a ring structure.

[0043] The pressure cap 3 is ring-shaped and is used to avoid the driven wheel 7.

[0044] Preferably, the turntable 2 has a T-shaped cross-section.

[0045] The T-shaped turntable 2 can ensure stable rotation of the turntable 2 under the combined action of the base 1 and the pressure cover 3.

[0046] Preferably, the diameter of the driving pulley 6 is larger than the diameter of the driven pulley 7, resulting in easier start-up and transmission. Both the driving pulley 6 and the driven pulley 7 are synchronous belt pulleys, and the transmission component 8 is a synchronous belt. This ensures precise transmission.

[0047] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tooling for cutting peripheral grooves in an elastic expansion sleeve, characterized in that: The system includes a base (1), a turntable (2), a pressure cap (3), and an indexing drive assembly (4). The pressure cap (3) is bolted to the base (1) and forms a mounting cavity. The turntable (2) is rotatably mounted within the mounting cavity. The indexing drive assembly (4) drives and controls the rotation angle of the turntable (2). The indexing drive assembly (4) includes a central shaft (5), a drive wheel (6), a driven wheel (7), a transmission component (8), a corner positioner (9), and multiple magnetic blocks (10). The central shaft (5) is mounted on the base (1). The drive wheel (6) is rotatably mounted on the central shaft (5). The driven wheel (7) is mounted at the center of the turntable (2). The transmission component (8) is connected to the drive wheel (6) and the driven wheel (7). The corner positioner... (9) Rotatably mounted on the top of the central shaft (5), and the locking end of the angle positioner (9) is adapted to the driving wheel (6). The turntable (2) is evenly provided with a plurality of positioning holes (11) along the circumferential direction. The magnetic blocks (10) are respectively set in the positioning holes (11) and on the working end of the angle positioner (9). The magnetic blocks (10) on the working end of the angle positioner (9) cooperate with the magnetic blocks (10) in the positioning holes (11).

2. The elastic sock slot cutting tool of claim 1, wherein: The angle positioning device (9) includes a crossbar (12), a spring (13), a card (14), and a hanging plate (15). The crossbar (12) is rotatably mounted on the top of the central shaft (5). The spring (13) is vertically mounted on the ear plate of the central shaft (5), and the top of the spring (13) abuts against the crossbar (12). The card (14) is slidably mounted on the crossbar (12) and locked by bolts. The card (14) is adapted to the outer circumferential surface of the drive wheel (6). The hanging plate (15) is rotatably mounted on one end of the crossbar (12), and the magnet (10) is mounted on the bottom surface of the hanging plate (15).

3. The elastic sleeve expanding and cutting tool according to claim 2, characterized in that: A handle (16) is provided at the other end of the crossbar (12).

4. The elastic sock slot cutting tool of claim 1, wherein: The number of slots on the positioning hole (11) is the same as the number of slots on the expansion sleeve (17).

5. The elastic sleeve expanding and cutting tool according to claim 1, wherein: Screws (18) are provided on both sides of the base (1).

6. The elastic sock slot cutting tool of claim 1, wherein: The pressure cap (3) has a ring structure.

7. The elastic sock slot cutting tool of claim 1, wherein: The turntable (2) has a T-shaped cross-section.

8. The elastic sock slot cutting tool of claim 1, wherein: The diameter of the driving wheel (6) is larger than the diameter of the driven wheel (7). Both the driving wheel (6) and the driven wheel (7) are synchronous belt pulleys, and the transmission component (8) is a synchronous belt.

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