Stepping motor gear positioning press-fitting device

Abstract

The utility model relates to the technical field of motors, in particular to a stepping motor gear positioning and press-fitting device which comprises a workbench, the upper side of the workbench is fixedly connected with a gear mounting table, a portal frame and a plurality of motor body positioning assemblies, and the upper end of the gear mounting table is slidably connected with a mounting plate in an inserted mode. One side of the portal frame is fixedly connected with an oil cylinder, and one end of the oil cylinder is fixedly connected with a restraining pressing block. The gear positioning device has the beneficial effects that the side face of the sliding plate is fixedly connected with the force transmission blocks distributed in the circumferential array mode, the force transmission blocks on the same side are slidably connected with the positioning assemblies, the multiple positioning assemblies form a positioning pin assembly which can be connected with a gear center hole in an inserted mode and position a gear, and when the size of the gear is changed, the positioning pin assembly can be used for positioning the gear. The power assembly only needs to control the sliding plate to slide up and down, then the force transmission blocks are used for pushing the positioning assemblies to slide on the mounting plate, and therefore the size of the positioning pin assembly is changed.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a stepping motor gear positioning and pressing device. Background Art

[0002] Adding gears or gearboxes to stepper motors is an important market application of stepper motors. It is mainly used for mechanical transmission, acceleration and deceleration, changing transmission direction, changing transmission torque, power distribution, etc. When connecting the gears and the motor shaft together, a positioning press-fit device is usually used.

[0003] At present, a Chinese utility model with publication number CN217530718U discloses a motor shaft end gear press-fitting tool, which fixes the motor and the gear respectively through a positioning clamping assembly composed of a mold frame and a positioning base, so that the two can be ensured to be on the same axis during the pressing process, and a positioning pin and a return spring are also provided inside the positioning base, and the positioning pin and the inner hole of the gear are plugged in to form the positioning of the gear.

[0004] However, since the size of the positioning pin is fixed and only suitable for the installation and positioning of one type of gear, the applicability of this utility model is relatively low. Therefore, the utility model proposes a stepper motor gear positioning and pressing device to solve the above problem. Utility Model Content

[0005] The utility model aims to provide a stepper motor gear positioning and pressing device to solve the problem in the background art that the positioning pin has a fixed size and is only suitable for the installation and positioning of gears of one size, resulting in low applicability of the device as a whole.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a stepper motor gear positioning and pressing device, the stepper motor gear positioning and pressing device comprising:

[0007] A workbench, the upper side of which is fixedly connected with a gear mounting platform, a gantry and a plurality of motor body positioning assemblies, a mounting plate being slidably plugged into the upper end of the gear mounting platform, a cylinder being fixedly connected to one side of the gantry, a constraint pressing block being fixedly connected to one end of the cylinder, the axis of the constraint pressing block and the mounting plate being the same, a plurality of motor body positioning assemblies being distributed in a circular array with the mounting plate as the center, a positioning pin assembly being provided at the upper end of the mounting plate, the positioning pin assembly comprising a plurality of positioning assemblies being distributed in a circular array with the axis of the mounting plate as the center;

[0008] The positioning assembly includes a mounting block, which is located at the upper end of the mounting plate and is slidably connected to the mounting plate, and guide rods arranged in a "parallelogram" are fixedly connected on both sides of the mounting block;

[0009] A power assembly, which is located on the inner side of the gear mounting platform and is slidably connected to the gear mounting platform. The power assembly includes a control motor, which is slidably connected to the gear mounting platform and a No. 2 spring is fixedly connected between the control motor and the workbench, a No. 2 screw rod is fixedly connected to the upper end of the control motor, a slide plate is threadedly inserted at one end of the No. 2 screw rod and the No. 2 screw rod is inserted into the mounting plate, the slide plate is arranged on the upper side of the mounting plate and a plurality of force transmission blocks are fixedly connected to the side of the slide plate, and each of the force transmission blocks is slidably connected to the corresponding guide rod.

[0010] Preferably, the motor body positioning assembly includes a fixed block, which is located at the upper end of the workbench and fixedly connected to the workbench, a No. 2 slider is slidably inserted into one end of the fixed block, a plurality of No. 1 springs are fixedly connected between the fixed block and the No. 2 slider, a threaded rod is threadedly inserted into one end of the No. 2 slider, the threaded rod is slidably connected to the fixed block and one end of the threaded rod is rotatably connected to a support block, and a plurality of telescopic rods are fixedly connected between the support block and the No. 2 slider.

[0011] Preferably, a guide groove is formed through the side surface of the guide rod, and the force transmission block is slidably connected to the guide groove.

[0012] Preferably, the mounting block is arranged in a "T" shape, and a stopper is rotatably connected to a side of the mounting block close to the gear.

[0013] Preferably, one end of the mounting block is rotatably connected with a No. 1 screw rod, one end of the No. 1 screw rod is threadedly connected with a No. 1 slider, the No. 1 slider is slidably connected to the mounting block and one side of the No. 1 slider is fixedly connected to a mounting rod, and the stop block is rotatably connected to the mounting rod.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The device has a plurality of force transmission blocks distributed in a circular array fixedly connected to the side of the skateboard, and the force transmission blocks on the same side are slidably connected to a positioning assembly. The plurality of positioning assemblies form a positioning pin assembly that can be plugged into the center hole of the gear and position the gear. When the size of the gear changes, it is only necessary to let the power assembly control the skateboard to slide up and down, and then use the plurality of force transmission blocks to push the plurality of positioning assemblies to slide on the mounting plate, thereby realizing the change of the size of the positioning pin assembly. This is very convenient and ultimately improves the applicability of the device, which solves the problem of low overall applicability of the device due to the fixed size of the positioning pin being only suitable for the installation and positioning of gears of one size. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0017] Figure 2This is a side view of the motor main body positioning assembly structure of the utility model;

[0018] Figure 3 This is a side schematic diagram of the gear mounting platform structure of the utility model;

[0019] Figure 4 This is an exploded view of the gear mounting platform structure of the utility model;

[0020] Figure 5 It is a side schematic diagram of the power assembly structure of the utility model;

[0021] Figure 6 This is a schematic diagram of the connection between the positioning assembly and the mounting plate structure of the utility model;

[0022] Figure 7 This is a side schematic diagram of the positioning component structure of the utility model;

[0023] Figure 8 It is a side schematic diagram of the skateboard structure of the utility model.

[0024] In the figure: 1. workbench; 2. gear mounting table; 3. mounting plate; 4. positioning assembly; 41. mounting block; 42. guide rod; 43. guide groove; 44. slider No. 1; 45. screw No. 1; 46. mounting rod; 47. stopper; 5. motor body positioning assembly; 51. fixing block; 52. slider No. 2; 53. threaded rod; 54. support block; 55. telescopic rod; 56. spring No. 1; 6. gantry; 7. oil cylinder; 71. restraint block; 8. slide plate; 81. force transmission block; 9. power assembly; 91. control motor; 92. screw No. 2; 93. spring No. 2. DETAILED DESCRIPTION

[0025] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] For the purpose of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are proposed to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, known methods and structures are not described in detail to avoid making these embodiments unnecessarily difficult to understand. In addition, all embodiments can be used in combination with each other.

[0029] See also Figures 1 to 8 , the utility model provides a technical solution:

[0030] Embodiment 1, a stepper motor gear positioning and pressing device, the stepper motor gear positioning and pressing device comprises: a workbench 1, a positioning component 4 and a power component 9.

[0031] Specifically, the upper side of the workbench 1 is fixedly connected with a gear mounting platform 2, a gantry 6 and a plurality of motor main body positioning components 5, the upper end of the gear mounting platform 2 is slidably plugged with a mounting plate 3, one side of the gantry 6 is fixedly connected with an oil cylinder 7, one end of the oil cylinder 7 is fixedly connected with a constraint block 71, the axis of the constraint block 71 and the mounting plate 3 are the same, and the plurality of motor main body positioning components 5 are distributed in a circular array with the mounting plate 3 as the center, and a positioning pin assembly is provided at the upper end of the mounting plate 3, and the positioning pin assembly includes a plurality of positioning components 4 distributed in a circular array with the axis of the mounting plate 3 as the center, so that the gear and the motor can be ensured to be on the same axis during press assembly;

[0032] Secondly, the positioning assembly 4 includes a mounting block 41, which is located at the upper end of the mounting plate 3 and is slidably connected to the mounting plate 3, and guide rods 42 arranged in a "parallelogram" are fixedly connected to both sides of the mounting block 41;

[0033] Furthermore, the power assembly 9 is located on the inner side of the gear mounting platform 2 and is slidably connected to the gear mounting platform 2. The power assembly 9 includes a control motor 91. The control motor 91 is slidably connected to the gear mounting platform 2 and a No. 2 spring 93 is fixedly connected between the control motor 91 and the workbench 1. A No. 2 screw rod 92 is fixedly connected to the upper end of the control motor 91. A slide plate 8 is threadedly inserted at one end of the No. 2 screw rod 92 and the No. 2 screw rod 92 is plugged into the mounting plate 3. The slide plate 8 is arranged on the upper side of the mounting plate 3 and a plurality of force transmission blocks 81 are fixedly connected to the side of the slide plate 8. Each force transmission block 81 is slidably connected to the corresponding guide rod 42. In actual implementation, the motor main body positioning assembly 5 is first adjusted according to the specifications of the motor, and then the gear is placed on the gear mounting platform 2, and the center hole of the gear is plugged into the positioning pin assembly composed of a plurality of positioning assemblies 4, and then the No. 2 screw rod is driven by the control motor 91. 92 rotates, thereby driving the slide plate 8 to slide up and down, and the slide plate 8 will drive the force transmission block 81 to slide up and down synchronously, and as the force transmission block 81 slides, the guide rod 42 will be pushed to slide horizontally on the mounting plate 3. As the guide rod 42 slides, the mounting block 41 will also contact the gear and support and position the gear to ensure that the mounting axis of the gear is the same as the axis of the motor, and it can adapt to gears of various specifications. After the gear and the motor body are installed, the oil cylinder 7 controls the constraint block 71 to slide down, and then presses the motor body to slide down, and then the rotating shaft in the motor will press the mounting plate 3, the positioning assembly 4 and the power assembly 9 to slide down, thereby completing the gear press-fitting, and then the oil cylinder 7 is reset, the motor body is removed to complete the gear positioning press-fitting, and then the mounting plate 3, the positioning assembly 4 and the power assembly 9 will be reset under the action of the second spring 93, which is very convenient, and as Figure 1 As shown, the constraint pressing block 71 is set to Figure 1 The shape in the middle can ensure that the motor body will not shake during the process of being pressed down.

[0034] In order to better adapt to the size of the motor, the motor body positioning assembly 5 of the present application includes a fixed block 51, the fixed block 51 is located at the upper end of the workbench 1 and is fixedly connected to the workbench 1, one end of the fixed block 51 is slidably inserted with a second slider 52, a plurality of first springs 56 are fixedly connected between the fixed block 51 and the second slider 52, one end of the second slider 52 is threadedly inserted with a threaded rod 53, the threaded rod 53 is slidably connected to the fixed block 51 and one end of the threaded rod 53 is rotatably connected to a support block 54, and a plurality of first springs 56 are fixedly connected between the support block 54 and the second slider 52 After determining the size of the motor body on which the gear needs to be pressed, each threaded rod 53 can be rotated to drive the support block 54 to slide, thereby better supporting the motor body. However, it is necessary to ensure that the position of the motor body after installation corresponds to the position of the constraint block 71, so that the constraint block 71 can further position the motor body when pressed down. The No. 1 spring 56 can reset the No. 2 slider 52 when the press-fitting is completed, and the telescopic rod 55 can ensure that the support block 54 does not rotate during the process of the threaded rod 53 pushing the support block 54 to slide.

[0035] In order to better control the sliding of the guide rod 42, a guide groove 43 is opened through the side of the guide rod 42 of the present application, and the force transmission block 81 is slidably connected to the guide groove 43. Through the sliding connection between the force transmission block 81 and the guide groove 43, the force transmission block 81 can better drive the guide rod 42 to slide horizontally when the slide plate 8 slides up and down.

[0036] In order to make it easier for the mounting block 41 to detach from the gear, the mounting block 41 of the present application is arranged in a "T" shape, and a stop block 47 is rotatably connected to the side of the mounting block 41 close to the gear. Through the stop block 47, the sliding friction between the mounting block 41 and the gear can be converted into rolling friction, thereby making it easier for the mounting block 41 to slide off the gear.

[0037] To facilitate the installation of the stopper 47, a screw rod 45 is rotatably inserted into one end of the mounting block 41 of the present application, and a slider 44 is threadedly inserted into one end of the screw rod 45. The slider 44 and the mounting block 41 are slidably connected, and a mounting rod 46 is fixedly connected to one side of the slider 44. The stopper 47 and the mounting rod 46 are rotatably connected. By rotating the screw rod 45, the slider 44 can be driven to slide up and down, thereby driving the stopper 47 to slide up and down, so that the present device can adapt to gears of greater thickness, and the mounting rod 46 can facilitate the rotational installation of the stopper 47.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stepper motor gear positioning and pressing device, characterized in that: The stepper motor gear positioning and pressing device comprises: A workbench (1), wherein the upper side of the workbench (1) is fixedly connected to a gear mounting platform (2), a gantry (6) and a plurality of motor main body positioning assemblies (5); the upper end of the gear mounting platform (2) is slidably plugged with a mounting plate (3); one side of the gantry (6) is fixedly connected to an oil cylinder (7); one end of the oil cylinder (7) is fixedly connected to a restraining pressure block (71); the axes of the restraining pressure block (71) and the mounting plate (3) are the same; the plurality of motor main body positioning assemblies (5) are distributed in a circular array with the mounting plate (3) as the center; a positioning pin assembly is provided at the upper end of the mounting plate (3); the positioning pin assembly comprises a plurality of positioning assemblies (4) distributed in a circular array with the axis of the mounting plate (3) as the center; The positioning assembly (4) comprises a mounting block (41), the mounting block (41) being located at the upper end of the mounting plate (3) and being slidably connected to the mounting plate (3), and guide rods (42) arranged in a "parallelogram" being fixedly connected to both sides of the mounting block (41); A power assembly (9), wherein the power assembly (9) is located on the inner side of the gear mounting platform (2) and is slidably connected to the gear mounting platform (2), wherein the power assembly (9) comprises a control motor (91), wherein the control motor (91) is slidably connected to the gear mounting platform (2), and a second spring (93) is fixedly connected between the control motor (91) and the workbench (1), wherein the upper end of the control motor (91) is fixedly connected to a second screw rod (92), wherein one end of the second screw rod (92) is threadedly plugged with a slide plate (8), and the second screw rod (92) is plugged with the mounting plate (3), wherein the slide plate (8) is arranged on the upper side of the mounting plate (3), and a plurality of force transmission blocks (81) are fixedly connected to the side of the slide plate (8), and each of the force transmission blocks (81) is slidably connected to a corresponding guide rod (42).

2. The stepper motor gear positioning and pressing device according to claim 1, characterized in that: The motor body positioning assembly (5) comprises a fixed block (51), the fixed block (51) is located at the upper end of the workbench (1) and is fixedly connected to the workbench (1), one end of the fixed block (51) is slidably inserted with a second slider (52), a plurality of first springs (56) are fixedly connected between the fixed block (51) and the second slider (52), one end of the second slider (52) is threadedly inserted with a threaded rod (53), the threaded rod (53) and the fixed block (51) are slidably connected and one end of the threaded rod (53) is rotatably connected with a support block (54), and a plurality of telescopic rods (55) are fixedly connected between the support block (54) and the second slider (52).

3. The stepper motor gear positioning and pressing device according to claim 1, characterized in that: A guide groove (43) is formed through the side surface of the guide rod (42), and the force transmission block (81) is slidably connected to the guide groove (43).

4. The stepper motor gear positioning and pressing device according to claim 1, characterized in that: The mounting block (41) is arranged in a "T" shape, and a stopper (47) is rotatably connected to a side of the mounting block (41) close to the gear.

5. The stepping motor gear positioning and pressing device according to claim 4, characterized in that: A first screw rod (45) is rotatably inserted at one end of the mounting block (41), a first slider (44) is threadedly inserted at one end of the first screw rod (45), the first slider (44) and the mounting block (41) are slidably connected, and a mounting rod (46) is fixedly connected to one side of the first slider (44), and the stopper (47) and the mounting rod (46) are rotatably connected.

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