Steering gear shell clamp

Abstract

The utility model relates to the technical field of steering gear clamps, and discloses a steering gear shell clamp which comprises a bottom plate, an electric double-lead-screw sliding table, a vertical frame, a limiting baffle and annular plates, and synchronous gear rings are rotationally installed outside the two sets of annular plates respectively. The distance between the two sets of vertical frames can be adjusted through the electric double-lead-screw sliding table, the spline shafts and the spline sleeves on the vertical frames can synchronously slide to adjust the distance, the locking motor drives the spline sleeves through the spline shafts, and synchronous gears on the two sides can synchronously drive synchronous gear rings on annular plates respectively. A synchronous gear ring drives a corresponding second bevel gear through a plurality of groups of external transmission gears and a first bevel gear, so that a plurality of groups of transmission lead screws on the inner diameters of two groups of annular plates are synchronously driven, and a plurality of groups of chucks on the inner diameters of the two groups of annular plates can synchronously move; therefore, the two sides of the steering gear shell placed in the inner diameters of the two sets of annular plates can be synchronously clamped.

Description

Technical Field

[0001] The utility model relates to the technical field of steering gear fixtures, in particular to a steering gear housing fixture. Background Technique

[0002] The function of the steering gear is to appropriately transform the steering torque and steering angle from the steering wheel. When machining the holes of the steering gear housing, it is necessary to clamp and fix the steering gear housing through a fixture.

[0003] For example, the Chinese patent authorization announcement number is CN220761720U, "A steering gear housing fixture, including a bottom plate, two groups of sliding grooves are provided on the top of the bottom plate, sliding rods are fixedly provided in both groups of sliding grooves, sliders are movably provided on both groups of sliding rods, and the top of each group of sliders is fixedly provided with the same limiting plate, and a cross plate is fixedly provided on one side of the limiting plate";

[0004] In the above comparative document, by setting components such as sliding grooves, limiting plates, cross plates, positioning rods and anti-slip pads, after the preliminary positioning of the steering gear housing is completed, the two positioning rods are pulled upward, and then the two limiting plates are pushed in the direction of approaching each other. The limiting plate drives the anti-slip pad again. When the anti-slip pad fits with one end of the steering gear housing, the positioning rod is released, and under the thrust of the spring, the positioning rod is inserted into the jack again, so as to realize the limiting of both ends of the steering gear housing, and effectively avoid the situation that the steering gear housing displaces to both sides during processing, ensuring the processing accuracy;

[0005] However, when the above steering gear housing fixture clamps the steering gear housing, the two groups of symmetric clamping mechanisms on the bottom plate cannot be adjusted synchronously, and after manually adjusting the distance between the two groups of clamping mechanisms, the placed steering gear housing can be clamped. This makes the process of adjusting and clamping the steering gear housing cumbersome, and the use of the steering gear fixture is extremely inconvenient. Content of the Utility Model

[0006] The purpose of the utility model is to provide a steering gear housing fixture, which can reduce the manual adjustment workload of the fixture and can synchronously adjust the two-side fixtures, making the clamping and positioning and release of the steering gear housing faster and more convenient.

[0007] To achieve the above object, the utility model provides the following technical solutions: A steering gear housing fixture, including a bottom plate, an electric double lead screw slide, a vertical frame, a limit baffle, and an annular plate. Synchronous gear rings are respectively rotatably installed outside the two annular plates. A spline shaft and a spline sleeve are respectively rotatably installed between the two vertical frames. A locking motor is fixedly installed on the outside of the vertical frame on one side of the spline shaft. Transmission mechanisms are equidistantly arranged on the outer circumferences of the two annular plates. The transmission mechanism includes a connecting seat fixedly installed on the outer circumference of the annular plate. A transmission gear is rotatably installed in the inner wall of the connecting seat through a pin shaft. A first bevel gear is fixedly sleeved at the end of the pin shaft on one side of the connecting seat. Second bevel gears are respectively rotatably installed at equal intervals on the circumferential surfaces of the two annular plates. A transmission lead screw is fixedly installed at the bottom end of the second bevel gear. A square sliding sleeve is installed on the outside of the transmission lead screw through a thread. A chuck is fixedly connected to the bottom end of the square sliding sleeve. Synchronous gears are respectively fixedly sleeved on the outside of the spline shaft and the spline sleeve.

[0008] Preferably, the electric double lead screw slide is fixedly installed in the middle of the bottom plate, and the two vertical frames are respectively fixedly installed on the tops of the matching sliders on both sides of the electric double lead screw slide.

[0009] Preferably, the output end of the locking motor is fixedly connected to the end of the spline shaft, and one end of the spline shaft slides inside the spline sleeve.

[0010] Preferably, through grooves are equidistantly opened on the outer circumferences of the two annular plates, and the square sliding sleeve slides in the corresponding through grooves.

[0011] Preferably, the outer edge of the transmission gear meshes with the outer edge of the corresponding synchronous gear ring, and the outer edge of the first bevel gear meshes with the outer edge of the corresponding second bevel gear.

[0012] Preferably, the outer edge of the synchronous gear meshes with the outer edge of the synchronous gear ring on the same side.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model can adjust the distance between two sets of vertical frames through an electric double-screw slide table, so that the spline shafts and spline sleeves on the vertical frames can slide synchronously to adjust the distance. The locking motor drives the spline sleeve through the spline shaft, so that the synchronous gears on both sides can respectively drive the synchronous tooth rings on the annular plates synchronously. The synchronous tooth rings drive the corresponding second bevel gears through multiple external transmission gears and the first bevel gear, so that multiple transmission lead screws on the inner diameters of the two annular plates are driven synchronously. In this way, multiple chucks on the inner diameters of the two annular plates can move synchronously, so as to clamp both sides of the steering gear housing placed in the inner diameters of the two annular plates synchronously. Compared with the existing steering gear housing fixture, it can reduce the manual adjustment workload of the fixture, and can adjust the two side fixtures synchronously, making the clamping, positioning and release of the steering gear housing faster and more convenient. It solves the problem that the two sets of symmetrical clamping mechanisms on the bottom plate cannot be adjusted synchronously, and after manually adjusting the distance between the two sets of clamping mechanisms, the placed steering gear housing can be clamped, which makes the process of adjusting and clamping the steering gear housing cumbersome and extremely inconvenient to use the steering gear fixture. Brief Description of the Drawings

[0015] Figure 1 is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 is a side sectional structural schematic diagram of the utility model;

[0017] Figure 3 is a sectional structural schematic diagram of the end of the bottom plate in the utility model;

[0018] Figure 4 is Figure 2 a partial enlarged structural schematic diagram at A in

[0019] Figure 5 is Figure 3 a partial enlarged structural schematic diagram at B in

[0020] In the figure: 1, bottom plate; 2, electric double-screw slide table; 3, vertical frame; 4, annular plate; 5, locking motor; 6, transmission mechanism; 7, synchronous gear; 31, limit baffle; 41, synchronous tooth ring; 42, through groove; 51, spline shaft; 52, spline sleeve; 61, connecting seat; 62, transmission gear; 63, first bevel gear; 64, second bevel gear; 65, transmission lead screw; 66, square sliding sleeve; 67, chuck. Detailed Description of the Preferred Embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. The described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0022] Please refer to Figures 1-5, the present utility model provides a technical solution: a steering gear housing fixture, including a bottom plate 1, an electric double lead screw slide 2, a vertical frame 3, a limit baffle 31, and an annular plate 4. Synchronous gear rings 41 are rotatably installed on the outside of the two groups of annular plates 4 through bearings respectively. A spline shaft 51 and a spline sleeve 52 are rotatably installed between the two groups of vertical frames 3 respectively. A locking motor 5 is fixedly installed on the outside of the vertical frame 3 on one side of the spline shaft 51. Transmission mechanisms 6 are equidistantly arranged on the outer circumferences of the two groups of annular plates 4. The transmission mechanism 6 includes a connecting seat 61 fixedly installed on the outer circumference of the annular plate 4;

[0023] A transmission gear 62 is rotatably installed in the inner wall of the connecting seat 61 through a pin shaft. A first bevel gear 63 is fixedly sleeved at the end of the pin shaft on one side of the connecting seat 61. Second bevel gears 64 are rotatably installed on the circumferential surfaces of the two groups of annular plates 4 at equal intervals respectively. A transmission lead screw 65 is fixedly installed at the bottom end of the second bevel gear 64. A square sliding sleeve 66 is installed on the outside of the transmission lead screw 65 through a thread. A chuck 67 is fixedly connected to the bottom end of the square sliding sleeve 66. Synchronous gears 7 are fixedly sleeved on the outside of the spline shaft 51 and the spline sleeve 52 respectively;

[0024] The locking motor 5 is a ga12t-n20 right-angle self-locking worm gear reduction motor;

[0025] The distance between the two groups of vertical frames 3 can be adjusted through the electric double lead screw slide 2, so that the spline shaft 51 and the spline sleeve 52 on the vertical frames 3 can synchronously slide and adjust the distance. The locking motor 5 drives the spline sleeve 52 through the spline shaft 51, so that the synchronous gears 7 on both sides can respectively synchronously drive the synchronous gear rings 41 on the annular plates 4. The synchronous gear rings 41 drive the corresponding second bevel gears 64 through a plurality of external transmission gears 62 and the first bevel gear 63, so that a plurality of transmission lead screws 65 on the inner diameters of the two groups of annular plates 4 are synchronously driven. In this way, a plurality of chucks 67 on the inner diameters of the two groups of annular plates 4 can move synchronously, so that the two sides of the steering gear housing placed in the inner diameters of the two groups of annular plates 4 can be synchronously clamped. Compared with the existing steering gear housing fixture, it can reduce the manual adjustment workload of the fixture and can synchronously adjust the two-side fixture, making the clamping positioning and release of the steering gear housing faster and more convenient.

[0026] Among them, the electric double lead screw slide 2 is fixedly installed in the middle of the bottom plate 1. The two groups of vertical frames 3 are respectively fixedly installed on the tops of the matching sliders on both sides of the electric double lead screw slide 2. The distance between the two groups of vertical frames 3 can be adjusted through the electric double lead screw slide 2, so that the spline shaft 51 and the spline sleeve 52 on the vertical frames 3 can synchronously slide and adjust the distance. In this way, the distance between the two groups of annular plates 4 can be electrically adjusted, so that the arc-shaped steering gear housing can be placed in the inner diameters of the two groups of annular plates 4 and clamped in the middle.

[0027] Among them, the output end of the locking motor 5 is fixedly connected to the end of the spline shaft 51. One end of the spline shaft 51 slides inside the spline sleeve 52. The locking motor 5 drives the spline sleeve 52 through the spline shaft 51, so that the synchronous gears 7 on both sides can synchronously drive the synchronous tooth rings 41 on the annular plate 4 respectively.

[0028] Among them, through grooves 42 are equidistantly arranged on the outer circumferences of the two groups of annular plates 4. The square sliding sleeve 66 slides in the corresponding through grooves 42. The outer edge of the transmission gear 62 meshes with the outer edge of the corresponding synchronous tooth ring 41. The outer edge of the first bevel gear 63 meshes with the outer edge of the corresponding second bevel gear 64. The outer edge of the synchronous gear 7 meshes with the outer edge of the synchronous tooth ring 41 on the same side. The synchronous tooth ring 41 drives the corresponding second bevel gear 64 through a plurality of external transmission gears 62 and the first bevel gear 63, so that a plurality of transmission lead screws 65 on the inner diameters of the two groups of annular plates 4 are synchronously driven. In this way, a plurality of chucks 67 on the inner diameters of the two groups of annular plates 4 can move synchronously, so that the two sides of the steering gear housing placed in the inner diameters of the two groups of annular plates 4 can be synchronously clamped. Compared with the existing steering gear housing fixture, it can reduce the manual adjustment workload of the fixture and can synchronously adjust the two-side fixtures, making the clamping positioning and release of the steering gear housing faster and more convenient.

[0029] Working principle: When in use, first place the steering gear to be clamped on the inner diameters of the two groups of annular plates 4;

[0030] Then, the distance between the two groups of vertical frames 3 can be adjusted through the electric double lead screw slide table 2, so that the two groups of annular plates 4 on the two groups of vertical frames 3 can clamp the steering gear housing in the center, and at the same time ensure that the limit baffles 31 on the two groups of vertical frames 3 can abut against both ends of the steering gear to further clamp and position the ends of the steering gear;

[0031] Finally, the output end of the locking motor 5 drives the spline shaft 51 and the spline sleeve 52, so that the synchronous gears 7 on both sides can synchronously drive the synchronous tooth rings 41 on the annular plate 4 respectively. The synchronous tooth ring 41 drives the corresponding second bevel gear 64 through a plurality of external transmission gears 62 and the first bevel gear 63, so that a plurality of transmission lead screws 65 on the inner diameters of the two groups of annular plates 4 are synchronously driven. In this way, a plurality of chucks 67 on the inner diameters of the two groups of annular plates 4 can move synchronously, so that the two sides of the steering gear housing placed in the inner diameters of the two groups of annular plates 4 can be synchronously clamped.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes and modifications can be made to these embodiments without departing from the principle of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steering gear housing fixture, comprising a bottom plate (1), an electric double lead screw slide table (2), a vertical frame (3), a limit baffle (31), and an annular plate (4), characterized in that: Synchronization gear rings (41) are respectively rotatably installed outside two groups of the annular plates (4). A spline shaft (51) and a spline sleeve (52) are respectively rotatably installed between two groups of the vertical frames (3). A locking motor (5) is fixedly installed on the outside of the vertical frame (3) on one side of the spline shaft (51). Transmission mechanisms (6) are equidistantly arranged on the outer circumferences of two groups of the annular plates (4). The transmission mechanism (6) includes a connecting seat (61) fixedly installed on the outer circumference of the annular plate (4). A transmission gear (62) is rotatably installed in the inner wall of the connecting seat (61) through a pin shaft. A first bevel gear (63) is fixedly sleeved at the end of the pin shaft on one side of the connecting seat (61). Second bevel gears (64) are respectively rotatably installed on the circumferential surfaces of two groups of the annular plates (4) at equal intervals. A transmission lead screw (65) is fixedly installed at the bottom end of the second bevel gear (64). A square sliding sleeve (66) is installed on the outside of the transmission lead screw (65) through a thread. A chuck (67) is fixedly connected to the bottom end of the square sliding sleeve (66). Synchronization gears (7) are respectively fixedly sleeved on the outside of the spline shaft (51) and the spline sleeve (52).

2. The steering gear housing fixture according to claim 1, characterized in that: The electric double lead screw slide table (2) is fixedly installed in the middle of the bottom plate (1). Two groups of the vertical frames (3) are respectively fixedly installed on the tops of the matching sliders on both sides of the electric double lead screw slide table (2).

3. A fixture for a steering gear housing according to claim 2, characterized in that: The output end of the locking motor (5) is fixedly connected to the end of the spline shaft (51). One end of the spline shaft (51) slides inside the spline sleeve (52).

4. A fixture for a steering gear housing according to claim 3, characterized in that: Through grooves (42) are equidistantly formed on the outer circumferences of two groups of the annular plates (4). The square sliding sleeve (66) slides in the corresponding through groove (42).

5. A fixture for a steering gear housing according to claim 4, characterized in that: The outer edge of the transmission gear (62) meshes with the outer edge of the corresponding synchronization gear ring (41). The outer edge of the first bevel gear (63) meshes with the outer edge of the corresponding second bevel gear (64).

6. The fixture for a steering gear housing according to claim 5, characterized in that: The outer edge of the synchronization gear (7) meshes with the outer edge of the synchronization gear ring (41) on the same side.

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