A bearing seat inner hole turning clamp

Abstract

The utility model discloses a bearing seat inner hole turning clamp belongs to bearing seat processing field, platform, the inside of platform is equipped with the opening for bearing seat turning, both sides in the platform inside are slidably connected with the sliding block, the inside fixed connection of sliding block has the adjusting lever, and the top of platform is provided with positioning mechanism, the utility model discloses through the setting of first locating block, second locating block, sleeve, clamping strip, telescopic link, first spring, clamping block and through -hole, when first locating block and second locating block are close to each other, make clamping block can smoothly remove to the cavity of sleeve, when clamping block removes to the through -hole position, the elastic potential energy of first spring releases and promotes clamping block to embed in the through -hole, thereby realizes the clamping of first locating block and second locating block, and this kind of structure design can effectively shorten bearing seat clamping time, and positioning effect is better, avoids the vibration of traditional clamp because of turning and leads to the processing error.

Description

Technical Field

[0001] This utility model relates to the field of bearing housing processing technology, specifically a bearing housing inner hole turning fixture. Background Technology

[0002] Textile-specific bearing housings are bearing housings specifically designed and manufactured for textile machinery and equipment. While supporting bearings and rotating shafts, they must be able to withstand the special working environment of textile mills, characterized by high temperatures, high humidity, high dust, and fiber lint. The production of bearing housings requires an internal turning process, specifically the cutting of the inner cylindrical hole of the bearing housing on a lathe using a cutting tool to achieve the dimensional accuracy, shape accuracy, positional accuracy, and surface finish required by the drawings. Therefore, a fixture is needed to achieve precise positioning and stable clamping during the internal turning process of textile-specific bearing housings to avoid machining errors caused by workpiece wobbling.

[0003] Upon investigation, a Chinese utility model patent (publication number: CN221967877U) discloses a positioning fixture for machining the inner hole of a bearing housing, comprising: a mounting base, wherein the top of the mounting base is provided with a mounting groove that matches the bearing housing, the inner wall of the mounting groove is provided with two sliding grooves, the included angle between the extended lines of the center lines of the two sliding grooves is 90 degrees, and the top of the mounting base is provided with two symmetrically distributed threaded holes.

[0004] The aforementioned patent, compared to existing technologies, can quickly fix the bearing housing to be processed inside the mounting groove without repeated adjustments, making operation simple. Combined with positioning components, it can further limit and fix bearing housings of different sizes, effectively improving its applicability and ease of operation. The cooperation of the connecting rod, expansion part, spring, and buffer plate effectively improves the positioning effect of the bearing housing. However, in actual use, some shortcomings still exist. For example, when positioning the bearing housing, there may be slight displacement between the clamping components and the bearing housing due to vibrations generated during turning, affecting the coaxiality and roundness accuracy of the inner hole machining. Furthermore, while improving the fixture's fixing effect, it also presents the problem of a cumbersome disassembly process, increasing the operator's workload and time costs, and reducing overall processing efficiency.

[0005] Therefore, this utility model provides a bearing housing inner hole turning fixture to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved This utility model provides a bearing housing inner hole turning fixture, which aims to solve the problems mentioned in the background art.

[0007] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a bearing housing inner hole turning fixture, including a platform, the platform having an opening inside for turning the bearing housing, sliders slidably connected to both sides inside the platform, an adjusting rod fixedly connected inside the sliders, and a positioning mechanism provided on the top of the platform.

[0008] The positioning mechanism includes a first positioning block and a second positioning block, which are respectively fixedly connected to the movable ends of the adjusting rods on both sides. A sleeve is fixedly connected to the outer wall of the first positioning block, and a retaining strip is fixedly connected to the outer wall of the second positioning block and fitted inside the sleeve. A telescopic rod is fixedly connected to the top of the retaining strip, and a retaining block is fixedly connected to the movable end of the telescopic rod. A first spring is fixedly connected to the bottom of the retaining block on the outer ring of the telescopic rod. The end of the first spring away from the retaining block is fixedly connected to the top of the retaining strip. A through hole is provided at the top of the sleeve for the retaining block to be inserted.

[0009] As a preferred technical solution of this application, a guide block is fixedly connected to the cavity of the outer wall of the sleeve, and the guide block is in contact with the locking block.

[0010] As a preferred technical solution of this application, a pressing block is movably connected to the top of the sleeve, and the pressing part of the pressing block corresponds to the position of the through hole.

[0011] As a preferred technical solution of this application, the slider is convex, and the top of the platform is provided with a slot for the slider to be inserted and slid.

[0012] As a preferred technical solution of this application, a second spring is fixedly connected inside the slider on the outer ring of the adjusting rod, and the end of the second spring away from the inside of the slider is fixedly connected to the bottom of the first positioning block and the second positioning block respectively.

[0013] As a preferred technical solution of this application, the inner walls of both the first positioning block and the second positioning block are provided with friction layers, and the outer wall of the first positioning block is fixedly connected with a force-bearing block.

[0014] As a preferred technical solution of this application, the outer wall of the platform is rotatably connected to a cam for lifting the force block, and the outer wall of the platform is provided with a motor for driving the cam to rotate.

[0015] (III) Beneficial Effects This utility model, through the arrangement of a first positioning block, a second positioning block, a sleeve, a locking strip, a telescopic rod, a first spring, a locking block, and a through hole, allows the locking block to move smoothly into the cavity of the sleeve when the first and second positioning blocks approach each other. The locking block, under the action of the inclined surface of the guide block, retracts using the telescopic rod and compresses the first spring. When the locking block moves to the through hole position, the elastic potential energy of the first spring is released, pushing the locking block into the through hole, thus achieving the locking and fixing of the first and second positioning blocks. This structural design effectively shortens the bearing seat clamping time while providing better positioning, avoiding machining errors caused by vibrations during turning in traditional fixtures. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a bearing housing inner hole turning fixture. Figure 2 This is a schematic diagram of an explosion occurring in a bearing housing bore turning fixture. Figure 3 for Figure 1 A magnified structural diagram at point A; Figure 4 for Figure 1 A magnified structural diagram at point B; Figure 5 for Figure 1 A magnified structural diagram at point C; In the picture: 1. Platform; 2. Opening; 3. Slider; 4. Adjusting rod; 5. First positioning block; 6. Second positioning block; 7. Sleeve; 8. Locking strip; 9. Telescopic rod; 10. Locking block; 11. First spring; 12. Through hole; 13. Guide block; 14. Slot; 15. Pressing block; 16. Second spring; 17. Force-bearing block; 18. Cam; 19. Motor. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] This utility model provides a machining fixture for turning the inner hole of a bearing housing, such as... Figure 1-5 As shown, the fixture includes a platform 1, with an opening 2 inside the platform 1 for turning the bearing seat. Slider 3 is slidably connected to both sides inside the platform 1, and an adjusting rod 4 is fixedly connected inside the slider 3. A positioning mechanism is provided on the top of the platform 1.

[0019] The positioning mechanism includes a first positioning block 5 and a second positioning block 6, which are respectively fixedly connected to the movable ends of the two adjusting rods 4. A sleeve 7 is fixedly connected to the outer wall of the first positioning block 5. A retaining strip 8, which is sleeved inside the sleeve 7, is fixedly connected to the outer wall of the second positioning block 6. A telescopic rod 9 is fixedly connected to the top of the retaining strip 8. A retaining block 10 is fixedly connected to the movable end of the telescopic rod 9. A first spring 11 is fixedly connected to the bottom of the retaining block 10 on the outer ring of the telescopic rod 9. The end of the first spring 11 away from the retaining block 10 is fixedly connected to the top of the retaining strip 8. A through hole 12 is provided on the top of the sleeve 7 for the retaining block 10 to be inserted.

[0020] A guide block 13 is fixedly connected to the cavity on the outer wall of the sleeve 7, and the guide block 13 is in contact with the locking block 10.

[0021] A pressing block 15 is movably connected to the top of the sleeve 7, and the pressing part of the pressing block 15 corresponds to the position of the through hole 12.

[0022] Specifically, when it is necessary to position the bearing housing to facilitate subsequent turning work, firstly, place the bearing housing at the opening 2 of platform 1. Then, move the first positioning block 5 and the second positioning block 6 closer to each other. As the first positioning block 5 and the second positioning block 6 move towards the bearing housing, the retaining strip 8 on the second positioning block 6 gradually fits into the sleeve 7 of the first positioning block 5. Under the guidance of the guide block 13, the retaining block 10 at the top of the retaining strip 8 compresses the first spring 11 and the telescopic rod 9 upwards, ensuring that the retaining block 10 can be smoothly located in the cavity of the sleeve 7. When the retaining block 10 moves continuously inside the sleeve 7 to the position of the through hole 12 at the top of the sleeve 7, the first spring 11 resets and pushes the retaining block 10 into the through hole 12, thereby realizing the rapid fixing of the first positioning block 5 and the second positioning block 6 and completing the positioning of the bearing housing. At this time, it is only necessary to use a turning tool to process the inner hole of the bearing housing through the opening 2.

[0023] After machining, when the bearing housing needs to be removed, simply move the pressing block 15 at the top of the sleeve 7. The pressing block 15 will tilt and press the locking block 10 out of the through hole 12 and continue to be located in the sleeve 7. The first positioning block 5 and the second positioning block 6 can then slide to separate. This structure not only improves the positioning effect of the bearing housing, but also makes the positioning and separation process very convenient. It does not require complicated tools or cumbersome adjustment steps, which can effectively reduce the workload of operators and significantly shorten the time spent on positioning and disassembling the bearing housing, thereby improving the overall turning efficiency. The telescopic rod 9 is designed to improve the placement stability of the locking block 10 and prevent the locking block 10 from bending due to friction when it slides in the sleeve 7 solely by the connection of the first spring 11. This ensures that the locking block 10 is always in an upright state and also avoids reducing the service life of the first spring 11. The adjusting rod 4, together with other structures, provides a flexible operating basis for subsequent fine adjustment of the bearing housing height, further ensuring the integrity of the bearing housing turning process.

[0024] The slider 3 is convex, and the top of the platform 1 has a slot 14 for the slider 3 to be inserted and slid.

[0025] Specifically, the inner wall of the slot 14 fits tightly against the convex outer wall of the slider 3. This design effectively limits the lateral displacement of the slider 3 during the sliding process, ensuring that the first positioning block 5 and the second positioning block 6 maintain a stable movement trajectory when clamping and positioning the bearing seat. At the same time, the length of the slot 14 provides sufficient sliding space for the slider 3 to meet the positioning requirements of bearing seats of different sizes. Furthermore, when the bearing seat is subsequently adjusted vertically by other structures, the slider 3 is prevented from directly detaching from the slot 14, thus ensuring the placement stability of the first positioning block 5 and the second positioning block 6.

[0026] The inner side of the slider 3 is fixedly connected to the outer ring of the adjusting rod 4 with a second spring 16. The end of the second spring 16 away from the inner side of the slider 3 is fixedly connected to the bottom of the corresponding first positioning block 5 and second positioning block 6.

[0027] The inner walls of both the first positioning block 5 and the second positioning block 6 are provided with friction layers, and the outer wall of the first positioning block 5 is fixedly connected with a force-bearing block 17.

[0028] The outer wall of platform 1 is rotatably connected to a cam 18 for lifting the force block 17, and the outer wall of platform 1 is provided with a motor 19 for driving the cam 18 to rotate.

[0029] Specifically, when it is necessary to move the bearing housing in the positioning position up and down to improve the overall turning performance, the motor 19 is started. The motor 19 drives the cam 18 to rotate. The protruding part of the cam 18 gradually contacts the force-bearing block 17 and pushes the force-bearing block 17 upward. The force-bearing block 17 drives the first positioning block 5 to move upward synchronously. At the same time, the second positioning block 6, which is engaged with the first positioning block 5, will move synchronously. During this process, the second spring 16 is stretched. Since the second spring 16 always applies a downward pulling force to the first positioning block 5 and the second positioning block 6 during their upward movement, when the cam 18 rotates to the point where the short part loses contact with the force-bearing block 17... Upon contact, the tension of the second spring 16 drives the first positioning block 5 and the second positioning block 6 to reset, completing one up-and-down reciprocating movement. This cycle improves the overall comprehensiveness of the inner hole turning of the bearing housing and further enhances the precision of the inner hole turning. The adjusting rod 4 provides stable guiding support for the up-and-down movement of the first positioning block 5 and the second positioning block 6. During their up-and-down movement, the tilting problem of the positioning blocks caused by lateral offset is effectively avoided, ensuring that the bearing housing always stays on the preset machining axis line. This further ensures the safety and stability of the entire movement process and provides a reliable structural guarantee for the continuous machining of the inner hole of the bearing housing.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A bearing housing inner hole turning fixture, comprising a platform (1), characterized in that: The platform (1) has an opening (2) for turning the bearing seat inside. The two sides inside the platform (1) are slidably connected to sliders (3). An adjusting rod (4) is fixedly connected inside the slider (3). A positioning mechanism is provided on the top of the platform (1). The positioning mechanism includes a first positioning block (5) and a second positioning block (6) fixedly connected to the movable ends of the adjusting rods (4) on both sides respectively. A sleeve (7) is fixedly connected to the outer wall of the first positioning block (5). A retaining strip (8) fitted inside the sleeve (7) is fixedly connected to the outer wall of the second positioning block (6). A telescopic rod (9) is fixedly connected to the top of the retaining strip (8). A retaining block (10) is fixedly connected to the movable end of the telescopic rod (9). A first spring (11) is fixedly connected to the bottom of the retaining block (10) on the outer ring of the telescopic rod (9). One end of the first spring (11) away from the retaining block (10) is fixedly connected to the top of the retaining strip (8). A through hole (12) for the retaining block (10) to be inserted is opened at the top of the sleeve (7).

2. The bearing housing inner hole turning fixture according to claim 1, characterized in that: A guide block (13) is fixedly connected to the cavity of the outer wall of the sleeve (7), and the guide block (13) is in contact with the locking block (10).

3. The bearing housing inner hole turning fixture according to claim 1, characterized in that: The top of the sleeve (7) is movably connected to a pressing block (15), and the pressing point of the pressing block (15) corresponds to the position of the through hole (12).

4. A bearing housing inner hole turning fixture according to claim 1, characterized in that: The slider (3) is convex, and the top of the platform (1) is provided with a slot (14) for the slider (3) to be inserted and slid.

5. A bearing housing inner hole turning fixture according to claim 1, characterized in that: The slider (3) is fixedly connected to the outer ring of the adjusting rod (4) with a second spring (16). The end of the second spring (16) away from the inside of the slider (3) is fixedly connected to the bottom of the first positioning block (5) and the second positioning block (6) respectively.

6. A bearing housing inner hole turning fixture according to claim 1, characterized in that: The inner walls of the first positioning block (5) and the second positioning block (6) are provided with friction layers, and the outer wall of the first positioning block (5) is fixedly connected with a force-bearing block (17).

7. A bearing housing inner hole turning fixture according to claim 6, characterized in that: The outer wall of the platform (1) is rotatably connected to a cam (18) for lifting the force block (17), and the outer wall of the platform (1) is provided with a motor (19) for driving the cam (18) to rotate.

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