Coupling drilling and reaming positioning tool

Abstract

This utility model discloses a positioning fixture for drilling and reaming holes in couplings, specifically relating to the field of coupling positioning technology. It includes a machining table with multiple sets of positioning components for clamping and fixing the coupling on its exterior. Each positioning component comprises multiple threaded rods arranged in a circular array. A movable seat is fitted around the outer end of each threaded rod, and a positioning block for clamping the coupling is mounted on the top of the movable seat. A common main bevel gear is provided between the multiple threaded rods. This utility model uses a servo motor to drive the main bevel gear to rotate, which synchronously drives multiple meshing driven bevel gears to rotate. The driven bevel gears then drive the threaded rods to rotate via corresponding linkage shafts, thereby causing the multiple threaded rods to rotate synchronously. The threaded rods drive the positioning blocks on the movable seats to move inward, and the multiple positioning blocks provide multi-directional compression and fixation for the coupling, thus improving operational convenience and clamping stability.

Description

Technical Field

[0001] This utility model relates to the field of coupling positioning technology, and more specifically to a coupling drilling and reaming hole positioning tool. Background Technology

[0002] As a key component connecting the linkage shaft to other shafts, the accuracy and reliability of the connection have a significant impact on the entire transmission system. Drilling and reaming are often required during the manufacturing and installation of couplings. This is because the connection between the coupling and the shaft typically uses keys, pins, or bolts, and these connecting components need to be precisely installed in specific holes on the coupling and shaft. The purpose of drilling and reaming is to machine holes on the coupling and shaft that meet design requirements, so as to install the connecting parts and ensure a tight and stable connection between the coupling and the shaft, enabling accurate transmission of torque and power. During the drilling and reaming process, positioning fixtures are needed to assist in the machining. These fixtures provide accurate positioning references for the linkage shaft and coupling, ensuring that key indicators such as the positional accuracy, dimensional accuracy, and coaxiality of the drilled and reamed holes meet design requirements.

[0003] As shown in the prior art published in CN221791807U, although this prior art, by combining the positioning and clamping mechanism, the coupling body, and the worktable, can further clamp and fix the outer surface of the coupling, increasing the frictional resistance between it and the coupling body, thus preventing abnormal rotation of the coupling body during drilling and increasing the stability of the coupling body during drilling, the positioning and clamping mechanism in this prior art is relatively cumbersome to operate. It requires operating two connecting rods sequentially and cannot be adjusted synchronously. Subsequently, multiple ball joints still need to be rotated to compress and fix the coupling, which is time-consuming and labor-intensive, thus affecting the positioning efficiency of the coupling. Utility Model Content

[0004] To overcome the aforementioned deficiencies of the prior art, this utility model provides a coupling drilling and reaming positioning fixture. A servo motor drives the main bevel gear to rotate, which in turn drives multiple meshing driven bevel gears to rotate. These driven bevel gears then drive threaded rods to rotate via corresponding linkage shafts, thereby enabling the multiple threaded rods to operate synchronously. The threaded rods then drive the positioning blocks on the moving seat to move inward, and the multiple positioning blocks perform multi-directional compression and fixation on the coupling. This improves operational convenience and clamping stability, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a positioning fixture for drilling and reaming holes of a coupling, including a processing table, wherein multiple sets of positioning components for clamping and fixing the coupling are provided on the outside of the processing table;

[0006] The positioning element includes multiple threaded rods arranged in a ring array. Each of the multiple threaded rods has a movable seat sleeved on the outer side of its far end, and a positioning block for clamping the coupling is installed on the top of the movable seat.

[0007] A common main bevel gear is provided between multiple threaded rods. A driven bevel gear meshes with the top of the main bevel gear on one side of the threaded rod. A linkage shaft is installed on the side of the driven bevel gear near the threaded rod, and the driven bevel gear is fixed together with the threaded rod through the linkage shaft.

[0008] In a preferred embodiment, the top of the processing table is provided with a plurality of mounting slots arranged in a ring array, and a plurality of threaded rods are respectively disposed inside the plurality of mounting slots, and both ends of the threaded rods are movably connected to the inner wall of the mounting slot through bearings;

[0009] An assembly slot is provided between multiple mounting slots inside the processing table. The main bevel gear, the linkage shaft, and the driven bevel gear are all located inside the assembly slot. The main bevel gear is movably connected inside the assembly slot via a rotating shaft, and the movable seat is located inside the end of the mounting slot away from the assembly slot.

[0010] In a preferred embodiment, the bottom of the processing table is provided with a connected groove and two air holes. The air holes are located on the front and rear sides of the groove, and a support plate is installed inside the groove. The two ends of the support plate extend into the two air holes respectively. A servo motor is installed on the top of the support plate. The output shaft of the servo motor passes through the worktable and is fixed together with the rotating shaft on the main bevel gear.

[0011] In a preferred embodiment, a dustproof net is provided inside the air vent, and the dustproof net is located on the top of the support plate.

[0012] In a preferred embodiment, both the cross-section of the movable base and the cross-section of the mounting groove are rectangular, and the outside of the movable base is in contact with the inner wall of the mounting groove.

[0013] In a preferred embodiment, the mounting groove has an L-shaped cross-section, and the positioning block is used to cover the top opening of the mounting groove.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. The main bevel gear is driven to rotate by a servo motor. The main bevel gear drives multiple meshing bevel gears to rotate synchronously. The multiple bevel gears then drive the threaded rods to rotate via corresponding linkage shafts. This causes the multiple threaded rods to rotate synchronously and drive the positioning blocks on the moving seat to move inward. The multiple positioning blocks then perform multi-directional compression and fixation on the coupling, thereby improving the ease of operation and clamping stability.

[0016] 2. The connection between the two air vents and the groove allows air to circulate inside the groove, which helps to remove the heat generated during the operation of the servo motor, preventing heat accumulation that could affect the performance of the servo motor. In addition, the dustproof mesh inside the air vents prevents dust from entering the groove and causing pollution. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a side sectional view of the processing table of this utility model;

[0019] Figure 3 For the present utility model Figure 2 Enlarged view of section A in the middle;

[0020] Figure 4 This is an exploded view of the support plate of this utility model;

[0021] Figure 5 This is a top sectional view of the processing table of this utility model.

[0022] The attached diagram is labeled as follows: 1. Machining table; 2. Threaded rod; 3. Moving seat; 4. Positioning block; 5. Main bevel gear; 6. Driven bevel gear; 7. Mounting slot; 8. Assembly slot; 9. Groove; 10. Vent hole; 11. Support plate; 12. Servo motor; 13. Dustproof net; 14. Linkage shaft. Detailed Implementation

[0023] 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.

[0024] Refer to the instruction manual appendix Figure 1-5 This utility model provides a positioning fixture for drilling and reaming holes of a coupling, including a processing table 1, and the processing table 1 is provided with multiple sets of positioning components for clamping and fixing the coupling.

[0025] The positioning component includes multiple threaded rods 2 arranged in a ring array. Each threaded rod 2 has a movable seat 3 sleeved on the outer side of its opposite end, and a positioning block 4 for clamping the coupling is installed on the top of the movable seat 3. A common main bevel gear 5 is provided between the multiple threaded rods 2. A driven bevel gear 6 meshes with the top of the main bevel gear 5 on one side of the threaded rod 2. A linkage shaft 14 is installed on the side of the driven bevel gear 6 near the threaded rod 2, and the driven bevel gear 6 is fixed together with the threaded rod 2 through the linkage shaft 14.

[0026] When using the aforementioned positioning components to fix the coupling, the operator places the coupling to be processed on the top of the processing table 1, and then operates the main bevel gear 5 to rotate. The main bevel gear 5 synchronously drives multiple meshing driven bevel gears 6 to rotate. The multiple driven bevel gears 6 then drive the threaded rods 2 to rotate through the corresponding linkage shafts 14. This allows the multiple threaded rods 2 to operate synchronously, and the threaded rods 2 drive the positioning blocks 4 on the moving seat 3 to move inward. The multiple positioning blocks 4 then perform multi-directional compression and fixation on the coupling, thereby ensuring the stability of the coupling during processing.

[0027] To ensure stability when the movable seat 3 moves the positioning block 4, the movable seat 3 needs to be limited. Therefore, both the cross-section of the movable seat 3 and the cross-section of the mounting groove 7 are rectangular, and the outer surface of the movable seat 3 contacts the inner wall of the mounting groove 7. This allows the mounting groove 7 to limit the movement of the movable seat 3, thereby improving stability when the movable seat 3 moves the positioning block 4 and preventing the movable seat 3 from tilting during movement. Simultaneously, because the cross-section of the mounting groove 7 is L-shaped, the positioning block 4 is used to cover the top opening of the mounting groove 7. This allows the positioning block 4 to cover the exposed outer opening of the mounting groove 7, preventing dust and other impurities from entering the mounting groove 7 and causing contamination.

[0028] like Figure 2 , 3 As shown in Figure 5, the top of the processing table 1 has multiple mounting slots 7 arranged in a circular array. Multiple threaded rods 2 are respectively located inside the multiple mounting slots 7, and both ends of the threaded rods 2 are movably connected to the inner wall of the mounting slot 7 through bearings. An assembly slot 8 is provided between the multiple mounting slots 7 and is located inside the processing table 1. The main bevel gear 5, the linkage shaft 14, and the driven bevel gear 6 are all located inside the assembly slot 8, and the main bevel gear 5 is movably connected inside the assembly slot 8 through a rotating shaft. The movable seat 3 is located inside the end of the mounting slot 7 away from the assembly slot 8. This makes it easy to install the threaded rods 2 in the positioning component into the mounting slot 7, and then install the main bevel gear 5, the linkage shaft 14, and the driven bevel gear 6 into the assembly slot 8. This makes the positioning component and the processing table 1 an integral unit, which facilitates the fixing of the coupling placed on the top of the processing table 1.

[0029] For example Figure 1 , 2As shown in Figures 4 and 5, the bottom of the processing table 1 is provided with a connected groove 9 and two air holes 10. The air holes 10 are located on the front and rear sides of the groove 9, and a support plate 11 is installed inside the groove 9. The two ends of the support plate 11 extend into the two air holes 10 respectively. A servo motor 12 is installed on the top of the support plate 11. The output shaft of the servo motor 12 passes through the worktable and is fixed together with the rotating shaft on the main bevel gear 5. This makes it easy to install the servo motor 12 to the bottom of the processing table 1 and drive the main bevel gear 5 to rotate, thereby improving the convenience of driving the main bevel gear 5. At the same time, the connection between the two air holes 10 and the groove 9 allows air to circulate inside the groove 9 through the air holes 10, which facilitates the removal of heat generated by the servo motor 12 during operation and avoids heat accumulation that could affect the performance of the servo motor 12.

[0030] To prevent dust in the air from entering the groove 9 through the air vent 10, it is necessary to block the dust, such as... Figure 1 , 2 As shown in Figures 4 and 5, a dustproof net 13 is provided inside the air vent 10, and the dustproof net 13 is located on the top of the support plate 11. By installing the dustproof net 13 inside the air vent 10, the dustproof net 13 can filter the air flowing to the air vent 10, prevent dust in the air from entering the groove 9, and prevent dust from adhering to the inside of the groove 9 or to the outside of the servo motor 12.

[0031] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A positioning fixture for drilling and reaming holes in a coupling, comprising a machining table (1), characterized in that: The processing table (1) is provided with multiple sets of positioning components for clamping and fixing the coupling on its exterior; The positioning component includes multiple threaded rods (2) arranged in a ring array. Each of the multiple threaded rods (2) is fitted with a movable seat (3) at one end away from each other, and a positioning block (4) for clamping the coupling is installed at the top of the movable seat (3). A common main bevel gear (5) is provided between multiple threaded rods (2). A driven bevel gear (6) meshes with the top of the main bevel gear (5) on one side of the threaded rod (2). A linkage shaft (14) is installed on the side of the driven bevel gear (6) near the threaded rod (2). The driven bevel gear (6) is fixed together with the threaded rod (2) through the linkage shaft (14).

2. The coupling drilling and reaming positioning fixture according to claim 1, characterized in that: The processing table (1) has multiple mounting slots (7) arranged in a ring array on its top. Multiple threaded rods (2) are respectively located inside the multiple mounting slots (7), and both ends of the threaded rods (2) are movably connected to the inner wall of the mounting slots (7) through bearings. An assembly slot (8) is provided between multiple mounting slots (7) and is located inside the processing table (1). The main bevel gear (5), the linkage shaft (14) and the driven bevel gear (6) are all located inside the assembly slot (8). The main bevel gear (5) is movably connected inside the assembly slot (8) through a rotating shaft. The movable seat (3) is located inside the end of the mounting slot (7) away from the assembly slot (8).

3. The coupling drilling and reaming positioning fixture according to claim 1, characterized in that: The bottom of the processing table (1) is provided with a groove (9) and two air holes (10). The air holes (10) are located on the front and rear sides of the groove (9). A support plate (11) is installed inside the groove (9). Both ends of the support plate (11) extend into the two air holes (10). A servo motor (12) is installed on the top of the support plate (11). The output shaft of the servo motor (12) passes through the worktable and is fixed together with the rotating shaft on the main bevel gear (5).

4. A coupling drilling and reaming positioning fixture according to claim 3, characterized in that: The air vent (10) is provided with a dustproof net (13), and the dustproof net (13) is located on the top of the support plate (11).

5. A positioning fixture for drilling and reaming holes in a coupling according to claim 2, characterized in that: The cross-section of the movable seat (3) and the cross-section of the mounting groove (7) are both rectangular, and the outside of the movable seat (3) is in contact with the inner wall of the mounting groove (7).

6. A positioning fixture for drilling and reaming holes in a coupling according to claim 2, characterized in that: The mounting groove (7) has an L-shaped cross section, and the positioning block (4) is used to cover the top opening of the mounting groove (7).

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