Gear shaft positioning and drilling clamp

Abstract

The utility model relates to the technical field of gear shaft machining equipment, and discloses a gear shaft positioning and drilling clamp which comprises a base and a mounting groove, positioning and clamping assemblies are oppositely arranged above the base, an adjusting assembly is arranged in the base, each positioning and clamping assembly comprises a mounting plate, and the mounting plate is provided with a positioning hole. A hollow shaft is rotationally connected to the interior of each mounting plate, a first driven gear and a second driven gear are fixedly connected to the two ends of each hollow shaft correspondingly, fixing blocks are evenly and fixedly connected to the surfaces of the mounting plates, and a first guide rod is fixedly connected between the opposite surfaces of every two fixing blocks; racks are slidably connected to the surfaces of the first guide rods correspondingly, and guide inclined grooves are evenly formed in the surfaces of the racks. According to the gear shaft machining clamp, the positioning and clamping assembly and the adjusting assembly are used in cooperation, so that the clamp can adapt to machining of gear shafts of various specifications, the production efficiency and the equipment utilization rate are greatly improved, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of gear shaft processing equipment technology, and in particular to a gear shaft positioning drilling fixture. Background Technology

[0002] In the field of mechanical manufacturing, gear shafts are key transmission components, and their machining accuracy directly affects the performance and lifespan of equipment. In order to facilitate heat dissipation or subsequent installation of gear shafts, holes need to be drilled during the gear shaft machining process. When drilling gear shafts, fixtures are needed to position and clamp the gear shafts.

[0003] While existing gear shaft positioning drilling jigs can stably clamp and position gear shafts, they generally suffer from insufficient flexibility. When faced with the processing requirements of gear shafts of different specifications, it is necessary to frequently change the positioning elements or adjust the jig structure. This not only increases the jig preparation time during production but also reduces the utilization rate of the equipment. Therefore, existing gear shaft positioning drilling jigs are not convenient for positioning and clamping gear shafts of different thicknesses and lengths. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a gear shaft positioning drilling fixture, which has the advantage of high applicability and solves the problem that existing gear shaft positioning drilling fixtures are not convenient for positioning and clamping gear shafts of different thicknesses and lengths.

[0005] This utility model provides the following technical solution: a gear shaft positioning drilling fixture, including a base and a mounting groove. Positioning and clamping components are arranged opposite each other on the top of the base. An adjusting component is provided inside the base. The positioning and clamping components include a mounting plate. Hollow shafts are rotatably connected inside the mounting plate. A first driven gear and a second driven gear are fixedly connected to both ends of the hollow shafts, respectively. Fixing blocks are uniformly fixedly connected to the surface of the mounting plate. A first guide rod is fixedly connected between the opposing surfaces of each pair of fixing blocks. A rack is slidably connected to the surface of each first guide rod. Guide grooves are uniformly formed on the surface of the rack. A connecting plate is provided at the end of the rack away from the mounting plate. Guide strips are uniformly fixedly connected to the surface of the connecting plate. Connecting blocks are uniformly fixedly connected to the surface of the connecting plate. Clamping blocks are fixedly connected to the ends of the connecting blocks. Limit frames are uniformly fixedly connected to the surface of the mounting plate. The base is the supporting structure of the entire fixture, providing an installation platform for other components and ensuring the stability and rigidity of the overall fixture structure.

[0006] Preferably, the mounting groove is formed on the top surface of the base, the mounting plate is positioned opposite to the top of the base, the racks mesh with the second driven gear, the guide grooves are formed on the side of the rack away from the mounting plate, and the mounting groove is formed on the top surface of the base to provide an installation position for the positioning and clamping assembly and other related components. The mounting plate is the main structure of the positioning and clamping assembly and is used to install and fix other related components, such as hollow shafts, fixing blocks, and limit frames, to provide stable support and positioning reference for these components and ensure the relative positional relationship between the components.

[0007] Preferably, the connecting plates are all slidably connected to the guide grooves via guide strips, the connecting blocks are all fixedly connected to the surface of the connecting plates away from the guide strips, the clamping blocks are all arc-shaped structures, the connecting plates and connecting blocks are slidably connected inside the limiting frame, the guide grooves are slidably connected to the guide strips on the connecting plates, and when the rack slides, the cooperation between the guide grooves and the guide strips causes the connecting plates to move laterally, realizing the transmission of power and the conversion of the direction of movement, ensuring that the clamping blocks can move according to the predetermined trajectory.

[0008] Preferably, the adjustment assembly includes first mounting blocks fixedly connected to the four corners of the top surface of the base, wherein a bidirectional threaded rod is rotatably connected between the opposing surfaces of two of the first mounting blocks, and a second guide rod is fixedly connected between the opposing surfaces of the other two first mounting blocks. A drive motor is installed inside the base, and the output shaft of the drive motor is fixedly connected to a drive gear via a coupling. Second mounting blocks are fixedly connected to the bottom surface of each mounting plate, and a rotating shaft is movably connected inside each of the second mounting blocks. Limit rings are fixedly connected to the surface of the rotating shaft and to both sides of the second mounting block. A third driven gear is fixedly connected to the end surface of the shaft near the mounting plate. A limit strip is fixedly connected to the side of the rotating shaft away from the mounting plate. A hollow connecting shaft is provided on the side of the rotating shaft away from the mounting plate. A guide groove is opened inside the hollow connecting shaft. A fourth driven gear is fixedly connected between the opposing surfaces of the two hollow connecting shafts. A throttle is fixedly connected to one end of the bidirectional threaded rod. When the bidirectional threaded rod is rotated, the mounting plate will move along the axial direction of the bidirectional threaded rod due to the transmission action of the thread, thereby adjusting the distance between the two mounting plates and adapting to the clamping requirements of gear shafts of different lengths.

[0009] Preferably, the mounting plate is threadedly connected to the surface of the bidirectional threaded rod, and the mounting plate is slidably connected to the surface of the second guide rod. The second guide rod ensures that the mounting plate can move smoothly and accurately under the drive of the bidirectional threaded rod, preventing the mounting plate from shifting or shaking during the movement, and ensuring the accuracy and stability of the adjustment.

[0010] Preferably, the driving gear and the fourth driven gear mesh with each other, and the rotating shafts are all slidably connected inside the guide groove through the limiting strip. The third driven gear meshes with the first driven gear, and the limiting strip is movably connected inside the guide groove of the hollow connecting shaft. The cooperation between the limiting strip and the guide groove ensures that the rotating shaft can both rotate and slide inside the hollow connecting shaft. When the mounting plate moves, the rotating shaft can slide inside the hollow connecting shaft through the limiting strip and the guide groove without affecting the power transmission, ensuring that the fixture can adapt to the clamping requirements of gear shafts of different lengths.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. By using the positioning and clamping components and the adjustment components in conjunction, the drive motor drives a series of gear transmissions, causing the arc-shaped clamping blocks to move closer or further apart, thus achieving center positioning and clamping of gear shafts of different coarsenesses. At the same time, for gear shafts of different lengths, rotating the throttle drives the bidirectional threaded rod to rotate, causing the mounting plates to move closer or further apart. Meanwhile, the rotating shaft slides within the hollow connecting shaft through the limit strip and guide groove, ensuring that the transmission is not affected. This allows the clamping position to be adjusted to accommodate gear shafts of different lengths. As a result, this fixture can quickly adapt to the processing of gear shafts of various specifications without the need for frequent component replacements or adjustments to complex parameters, greatly improving production efficiency and equipment utilization, and reducing production costs.

[0013] 2. The coordinated use of the positioning and clamping components and the adjustment components ensures the accuracy and stability of power transmission, making the movement trajectory of the clamping block precisely controllable. The coordinated design of the guide groove and guide bar allows for precise control of the movement direction and distance of the connecting plate and the connecting block, thereby ensuring the accurate clamping position of the clamping block on the gear shaft. In addition, the cooperation of the bidirectional threaded rod and the second guide rod makes the movement of the mounting plate smooth and precise, and can accurately adjust the clamping position according to the length of the gear shaft. This effectively avoids drilling offset and hole diameter deviation caused by inaccurate positioning, ensuring the quality of drilling and improving the assembly accuracy and performance of the gear shaft. Attached Figure Description

[0014] Figure 1 This is a front view of the structure of this utility model;

[0015] Figure 2 This is a side view of the structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the positioning and clamping component in the structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the adjustment component in the structure of this utility model;

[0018] Figure 5 for Figure 2 Enlarged view of point A in the middle.

[0019] In the diagram: 1. Base; 2. Mounting slot; 3. Positioning and clamping assembly; 31. Mounting plate; 32. Hollow shaft; 33. First driven gear; 34. Second driven gear; 35. Fixing block; 36. First guide rod; 37. Rack; 38. Guide groove; 39. Connecting plate; 311. Guide bar; 312. Connecting block; 313. Clamping block; 314. Limiting frame; 4. Adjusting assembly; 41. First mounting block; 42. Bidirectional threaded rod; 43. Second guide rod; 44. Drive motor; 45. Drive gear; 46. Second mounting block; 47. Rotating shaft; 48. Limiting ring; 49. Third driven gear; 411. Limiting bar; 412. Hollow connecting shaft; 413. Guide groove; 414. Fourth driven gear; 415. Throttle. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1 - Figure 4This utility model provides an embodiment of a gear shaft positioning drilling fixture, comprising a base 1 and a mounting groove 2. A positioning clamping assembly 3 is disposed opposite to each other on the top of the base 1. An adjusting assembly 4 is disposed inside the base 1. The positioning clamping assembly 3 includes a mounting plate 31, with hollow shafts 32 rotatably connected inside the mounting plate 31. A first driven gear 33 and a second driven gear 34 are respectively fixedly connected to both ends of the hollow shafts 32. Fixing blocks 35 are uniformly fixedly connected to the surface of the mounting plate 31. A first guide rod 36 is fixedly connected between the opposing surfaces of each pair of fixing blocks 35. A rack 3 is slidably connected to the surface of each first guide rod 36. 7. Guide grooves 38 are evenly distributed on the surface of the rack 37. A connecting plate 39 is provided at the end of the rack 37 away from the mounting plate 31. Guide strips 311 are evenly fixedly connected to the surface of the connecting plate 39. Connecting blocks 312 are evenly fixedly connected to the surface of the connecting plate 39. Clamping blocks 313 are fixedly connected to the ends of the connecting blocks 312. Limit frames 314 are evenly fixedly connected to the surface of the mounting plate 31. The mounting groove 2 is opened on the top surface of the base 1. The mounting plate 31 is positioned above the base 1. The rack 37 meshes with the second driven gear 34. The guide grooves 38 are all opened on the rack 37 away from the mounting plate 31. On one side surface, the connecting plates 39 are slidably connected to the guide grooves 38 via guide strips 311. The connecting blocks 312 are fixedly connected to the side surface of the connecting plates 39 away from the guide strips 311. The clamping blocks 313 are all arc-shaped. The connecting plates 39 and connecting blocks 312 are slidably connected inside the limiting frame 314. In use, the drive motor 44 starts and drives the fourth driven gear 414 to rotate via the drive gear 45, thereby driving the two hollow connecting shafts 412 to rotate synchronously. The two hollow connecting shafts 412 synchronously drive the rotating shaft 47 inside the second mounting block 46 via the guide grooves 413 and the limiting strips 411. The rotation of the part drives the third driven gear 49 to rotate, which in turn drives the first driven gear 33 to rotate. The first driven gear 33 drives the second driven gear 34 to rotate through the hollow shaft 32. Since the racks 37 are all meshed with the second driven gear 34, the three racks 37 slide synchronously on the surface of the first guide rod 36. Since the connecting plates 39 are all slidably connected to the guide grooves 38 through the guide bars 311, the connecting plates 39 and the connecting blocks 312 drive the clamping blocks 313 to move closer or further apart through the forward and reverse rotation of the drive motor 44, thereby achieving center positioning and clamping of gear shafts of different thicknesses.

[0022] Please see Figure 1 - Figure 4The adjusting assembly 4 includes first mounting blocks 41 fixedly connected to the four corners of the top surface of the base 1. A bidirectional threaded rod 42 is rotatably connected between the opposing surfaces of two first mounting blocks 41, and a second guide rod 43 is fixedly connected between the opposing surfaces of the other two first mounting blocks 41. A drive motor 44 is installed inside the base 1, and the output shaft of the drive motor 44 is fixedly connected to a drive gear 45 via a coupling. Second mounting blocks 46 are fixedly connected to the bottom surface of the mounting plate 31, and rotating shafts 47 are movably connected inside each of the second mounting blocks 46. Limit rings 48 are fixedly connected to the surface of the rotating shaft 47 on both sides of the second mounting block 46. A third driven gear 49 is fixedly connected to the end surface of the rotating shaft 47 near the mounting plate 31. A limit strip 411 is fixedly connected to the side of the rotating shaft 47 away from the mounting plate 31. A hollow connecting shaft 412 is provided on the side of the rotating shaft 47 away from the mounting plate 31. A guide groove 413 is opened inside the hollow connecting shaft 412. A fourth driven gear 414 is fixedly connected between the opposing surfaces of the two hollow connecting shafts 412. One end of the bidirectional threaded rod 42 is fixedly connected to... A throttle handle 415 is connected to the surface of the mounting plate 31 and the double-threaded rod 42. The mounting plate 31 is slidably connected to the surface of the second guide rod 43. The driving gear 45 and the fourth driven gear 414 mesh with each other. The rotating shafts 47 are all slidably connected to the inside of the guide groove 413 through the limit strips 411. The third driven gear 49 meshes with the first driven gear 33. When clamping and drilling gear shafts of different lengths, the double-threaded rod 42 can be driven to rotate forward or reverse by rotating the throttle handle 415. The device features a threaded connection, with the second guide rod 43 providing guidance and stability. When the bidirectional threaded rod 42 rotates, the mounting plates 31 move closer or further apart. Simultaneously, due to the limiting effect of the limiting ring 48, the mounting plates 31 move closer or further apart, causing the rotating shaft 47 to slide inside the hollow connecting shaft 412 via the limiting strip 411 and the guide groove 413. At this time, due to the connection between the limiting strip 411 and the guide groove 413, the transmission of the drive gear 45 is not affected, thus enabling the device to be used for clamping and drilling gear shafts of different lengths.

[0023] Working principle: When positioning and clamping the gear shaft during drilling, the drive motor 44 is started for gear shafts of different diameters. The output shaft of the drive motor 44 drives the driving gear 45 to rotate through a coupling. Since the driving gear 45 meshes with the fourth driven gear 414, the rotation of the driving gear 45 will drive the fourth driven gear 414 to rotate. The fourth driven gear 414 drives the two hollow connecting shafts 412 to rotate synchronously. The hollow connecting shafts 412 have guide grooves 413 inside. The side of the rotating shaft 47 away from the mounting plate 31 is fixedly connected to a limit strip 411 and slidably connected to the guide groove 413 through the limit strip 411. At the same time, limit rings 48 are fixedly connected to the surface of the rotating shaft 47 on both sides of the second mounting block 46. Block 46 is fixedly connected to the bottom surface of mounting plate 31. Rotating shaft 47 is movably connected inside the second mounting block 46. Therefore, when the two hollow connecting shafts 412 rotate synchronously, they will drive rotating shaft 47 to rotate inside the second mounting block 46 through guide groove 413 and limit bar 411. A third driven gear 49 is fixedly connected to one end of rotating shaft 47 near mounting plate 31. Rotation of rotating shaft 47 drives third driven gear 49 to rotate. Third driven gear 49 meshes with first driven gear 33, thereby driving first driven gear 33 to rotate. First driven gear 33 is fixedly connected to one end of hollow shaft 32. Hollow shaft 32 is rotatably connected inside mounting plate 31. A second driven gear 34 is fixedly connected to the other end of hollow shaft 32. The rotation of the 3rd shaft drives the hollow shaft 32 to rotate, which in turn drives the second driven gear 34 to rotate. Since all the racks 37 are meshed with the second driven gear 34, and the racks 37 are slidably connected to the surface of the first guide rod 36, and the two ends of the first guide rod 36 are fixedly connected between the opposing surfaces of two fixed blocks 35, and the fixed blocks 35 are evenly fixedly connected to the surface of the mounting plate 31, the rotation of the second driven gear 34 will drive the three racks 37 to slide synchronously on the surface of the first guide rod 36. The side of the rack 37 away from the mounting plate 31 is evenly provided with guide grooves 38. The surface of the connecting plate 39 is evenly fixedly connected with guide strips 311. The connecting plate 39 is slidably connected to the guide grooves 38 through the guide strips 311. The connecting block 312 is fixedly connected to the connecting plate 39 away from the guide grooves 38. On one side surface of the rack 311, a clamping block 313 is fixedly connected to the end of the connecting block 312 and has an arc-shaped structure. The connecting plate 39 and the connecting block 312 are slidably connected inside the limiting frame 314. The limiting frame 314 is fixedly connected to the surface of the mounting plate 31. When the rack 37 slides, the connecting plate 39 and the connecting block 312 slide inside the limiting frame 314 through the sliding connection between the guide bar 311 and the guide groove 38. This causes the clamping block 313 to move closer or further away from each other, thus achieving center positioning and clamping of gear shafts of different thicknesses. For gear shafts of different lengths, the handle 415 is rotated, which drives the bidirectional threaded rod 42 to rotate forward or reverse. The bidirectional threaded rod 42 is rotatably connected between the opposing surfaces of the two first mounting blocks 41.A second guide rod 43 is fixedly connected between the opposing surfaces of the two first mounting blocks 41. A second mounting block 46 is fixedly connected to the bottom surface of the mounting plate 31. The mounting plate 31 is threadedly connected to the surface of the bidirectional threaded rod 42 and slidably connected to the surface of the second guide rod 43. When the bidirectional threaded rod 42 rotates, under the guiding and stabilizing effect of the second guide rod 43, the mounting plates 31 will move closer or further apart. When the mounting plate 31 moves, it will drive the rotating shaft 47 to slide inside the hollow connecting shaft 412 through the limiting strip 411 and the guide groove 413. Due to the connection effect of the limiting strip 411 and the guide groove 413, it will not affect the clamping action of the clamping block 313 on the gear shaft driven by the driving gear 45 through the fourth driven gear 414, the hollow connecting shaft 412, the rotating shaft 47, the third driven gear 49, the first driven gear 33, the hollow shaft 32, the second driven gear 34, the rack 37, the connecting plate 39, and the connecting block 312. Thus, the device can be used for clamping and drilling gear shafts of different lengths.

Claims

1. A gear shaft positioning drilling fixture comprising a base (1) and a mounting slot (2), characterized in that: A positioning clamping component (3) is disposed on the upper side of the base (1), and an adjustment component (4) is disposed inside the base (1). The positioning and clamping assembly (3) includes a mounting plate (31). Hollow shafts (32) are rotatably connected inside the mounting plate (31). A first driven gear (33) and a second driven gear (34) are fixedly connected to both ends of the hollow shafts (32). Fixing blocks (35) are uniformly fixedly connected to the surface of the mounting plate (31). A first guide rod (36) is fixedly connected between the opposing surfaces of each pair of fixing blocks (35). A rack (37) is slidably connected to the surface of the first guide rod (36). A guide groove (38) is uniformly opened on the surface of the rack (37). A connecting plate (39) is provided at the end of the rack (37) away from the mounting plate (31). A guide strip (311) is uniformly fixedly connected to the surface of the connecting plate (39). A connecting block (312) is uniformly fixedly connected to the surface of the connecting plate (39). A clamping block (313) is fixedly connected to the end of the connecting block (312). A limit frame (314) is uniformly fixedly connected to the surface of the mounting plate (31).

2. A gear shaft positioning drill jig according to claim 1, wherein: The adjustment assembly (4) includes first mounting blocks (41) fixedly connected to the four corners of the top surface of the base (1), wherein a bidirectional threaded rod (42) is rotatably connected between the opposing surfaces of two of the first mounting blocks (41), and a second guide rod (43) is fixedly connected between the opposing surfaces of the other two first mounting blocks (41). A drive motor (44) is provided inside the base (1), and the output shaft of the drive motor (44) is fixedly connected to a drive gear (45) through a coupling. Second mounting blocks (46) are fixedly connected to the bottom surface of the mounting plate (31), and rotating shafts (47) are movably connected inside the second mounting blocks (46). The rotating shafts (47) are movably connected to the bottom surface of the mounting plate (31). Limit rings (48) are fixedly connected to both sides of the second mounting block (46). A third driven gear (49) is fixedly connected to the end surface of the rotating shaft (47) near the mounting plate (31). A limit strip (411) is fixedly connected to the side of the rotating shaft (47) away from the mounting plate (31). A hollow connecting shaft (412) is provided on the side of the rotating shaft (47) away from the mounting plate (31). A guide groove (413) is provided inside the hollow connecting shaft (412). A fourth driven gear (414) is fixedly connected between the opposite surfaces of the two hollow connecting shafts (412). A throttle (415) is fixedly connected to one end of the bidirectional threaded rod (42).

3. The gear shaft positioning drilling fixture according to claim 2, characterized in that: The mounting plate (31) is threadedly connected to the surface of the bidirectional threaded rod (42), and the mounting plate (31) is slidably connected to the surface of the second guide rod (43).

4. The gear shaft positioning drilling fixture according to claim 2, characterized in that: The driving gear (45) meshes with the fourth driven gear (414), the rotating shaft (47) is slidably connected to the inside of the guide groove (413) through the limiting strip (411), and the third driven gear (49) meshes with the first driven gear (33).

5. A gear shaft positioning drilling fixture according to claim 1, characterized in that: The mounting groove (2) is opened on the top surface of the base (1), the mounting plate (31) is arranged opposite to the base (1) above, the rack (37) meshes with the second driven gear (34), and the guide groove (38) is opened on the side surface of the rack (37) away from the mounting plate (31).

6. A gear shaft positioning drilling fixture according to claim 1, characterized in that: The connecting plates (39) are all slidably connected to the guide grooves (38) via guide strips (311), the connecting blocks (312) are all fixedly connected to the side surface of the connecting plates (39) away from the guide strips (311), the clamping blocks (313) are all arc-shaped, and the connecting plates (39) and connecting blocks (312) are all slidably connected inside the limiting frame (314).

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