Anti-loosening structure of stepping motor

Abstract

The utility model relates to the technical field of stepping motor fixation, and provides an anti-loosening structure of a stepping motor, which comprises a mounting plate, a mounting groove, a motor body, a positioning channel, a positioning block and a relative movement mechanism, the mounting groove is arranged on the mounting plate, the groove bottom of the mounting groove is provided with a mounting port, the motor body is arranged on one side of the mounting plate, and the positioning channel is arranged on the motor body. The motor body extends into the mounting groove and is slidably connected with the side walls of the mounting groove, the positioning channels are L-shaped, two opposite side walls of the mounting groove are each provided with two positioning channels, L-shaped positioning blocks are slidably arranged in the positioning channels, and the relative moving mechanism is arranged in the mounting plate and used for driving the positioning blocks on the two sides of the mounting groove to move relatively. According to the technical scheme, the problem that in the prior art, fixation between the stepping motor and the mounting plate is prone to loosening is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to step motor fixing technical field, concretely relates to a step motor's anti loosening structure. BACKGROUND

[0002] As an open-loop control motor that converts electrical pulse signals into angular displacement or linear displacement, the step motor is widely used in industrial automation equipment, 3D printers, medical devices and many other fields due to its high precision, good control characteristics and other advantages. In these application scenarios, the step motor needs to be stably and reliably installed on the support seat to ensure its precise operation and achieve the expected function.

[0003] At present, the common fixing method of the step motor and the support seat mainly adopts direct connection by bolts. Although this method can fix the motor on the support seat to a certain extent, it exposes many defects in actual use. Since the motor generates continuous vibration during operation, the bolt is prone to loosening under the long-term effect. Once the bolt is loose, relative displacement will occur between the motor and the support seat, which not only leads to a significant decrease in the operation precision of the motor, affecting the overall performance of the equipment, but also may cause the equipment to malfunction and fail to work normally. For example, in semiconductor manufacturing equipment with extremely high precision requirements, a slight displacement of the step motor may cause deviation in chip manufacturing, resulting in product scrap.

[0004] In addition, some methods of fixing the motor on the support seat by welding can provide relatively stable connection, but lack flexibility. When the motor needs to be repaired or replaced due to failure, the removal process is extremely difficult, and the motor and the support seat may be damaged, increasing the maintenance cost and time cost.

[0005] To solve the above problems, some existing technologies attempt to prevent bolt loosening by increasing spring washers, using lock nuts and other methods, but the effect is still unsatisfactory. Under complex working environment and long-term, high-intensity operating conditions, these simple anti-loosening measures are difficult to effectively cope with the impact of motor vibration, and cannot fundamentally eliminate the loosening problem between the motor and the support seat. UTILITY MODEL CONTENTS

[0006] The utility model provides a step motor's anti loosening structure, solves the problem that the fixing between the step motor and the mounting plate in prior art is prone to loosening.

[0007] The utility model discloses a technical scheme as follows: A kind of anti-loosening structure of stepper motor, including mounting plate, still including installation slot, motor body, positioning channel, locating block and relative movement mechanism, the installation slot is opened in the mounting plate, the slot bottom of the installation slot is equipped with installation port, the motor body is arranged in the mounting plate one side, the motor body is inserted into the installation slot and with the installation slot side wall sliding connection, the positioning channel is set to L shape, two the positioning channels are opened in the opposite two side walls of the installation slot, L-shaped locating block is slidably arranged in the positioning channel, the relative movement mechanism is arranged in the mounting plate, for driving the positioning block on the two sides of the installation slot relative movement.

[0008] Preferably, the relative movement mechanism includes an adjusting disc, a rotating shaft and an adjusting rod, two first cavities are formed on one side of the installation slot, the first cavities are in communication with the adjacent positioning channels, wherein the locating block penetrates through the positioning channel and extends into the first cavity, an adjusting disc is rotatably arranged on the inner bottom wall of the first cavity, a rotating shaft is rotatably arranged at the eccentric position of the side wall of the adjusting disc, an adjusting rod is fixedly arranged on the rotating shaft, and the end of the adjusting rod away from the rotating shaft is fixedly connected with the adjacent locating block.

[0009] Further, the synchronous rotating mechanism includes a first gear and a first tooth ring, a second cavity is formed on one side of the two first cavities of the mounting plate, the first gear is rotatably arranged on one side of the adjusting disc in the second cavity, a first connecting rod is fixedly arranged between the first gear and the adjacent adjusting disc, the first tooth ring is rotatably arranged in the second cavity, the first tooth ring is engaged with the first gear, and a driving mechanism is arranged on the mounting plate to drive the first gear to rotate.

[0010] Still further, the driving mechanism includes a first bevel gear, a second bevel gear, a third bevel gear and a fourth bevel gear, a third cavity is formed on one side of the second cavity of the mounting plate, a first bevel gear is rotatably arranged on the inner top wall of the third cavity, a second connecting rod is fixedly arranged between the first bevel gear and the adjacent first gear, a second bevel gear is rotatably arranged on the side wall of the third cavity, the second bevel gear is engaged with the first bevel gear, a fourth cavity is formed on one side of the third cavity of the mounting plate, a third bevel gear is rotatably arranged on the side wall of the fourth cavity, a third connecting rod is fixedly arranged between the third bevel gear and the second bevel gear, a fourth bevel gear is rotatably arranged on the inner top wall of the fourth cavity, the fourth bevel gear is engaged with the third bevel gear, and a hand wheel is rotatably arranged on the mounting plate, a fourth connecting rod is fixedly arranged between the hand wheel and the fourth bevel gear.

[0011] Further, the positioning mechanism is arranged between the hand wheel and the mounting plate, and is used for positioning the rotation angle of the hand wheel.

[0012] On the basis of the above-mentioned scheme, the reset slot is arranged on the hand wheel and communicates with the positioning port, and the spring is sleeved on the positioning rod and fixedly connected with the bottom of the reset slot and the positioning disc.

[0013] The working principle and beneficial effects of the utility model are as follows:

[0014] 1. In the utility model, after one end of the motor body is inserted into the mounting slot, the relative movement mechanism can drive the two positioning blocks to move relatively, so that the mounting flange of the motor body is clamped and fixed by the positioning blocks and the bottom of the mounting slot, thereby facilitating the installation and fixation of the motor body and the support plate.

[0015] 2. In the utility model, the rotation of the hand wheel can drive the fourth bevel gear to rotate, and one of the first gears can be driven to rotate through the conduction of the third bevel gear, the second bevel gear and the first bevel gear, and then the two first gears and the two adjusting discs are driven to rotate through the meshing of the first gear and the first tooth ring. During the rotation of the adjusting disc, the positioning blocks can be pulled to move relatively by the rotating shaft and the adjusting rod, thereby facilitating the installation and fixation of the motor body.

[0016] 3. In the utility model, the positioning rod can be inserted into the positioning slot under the action of the spring, so that the rotation angle of the hand wheel can be positioned through the cooperation of the positioning rod, the positioning port and the positioning slot, thereby avoiding the loosening of the fixation of the motor body.

[0017] 4. In the utility model, the installation of the mounting slot, the motor body, the positioning channel, the positioning block and the relative movement mechanism facilitates the fixation of the motor body through the cooperation between the positioning block and the bottom of the mounting slot, and the positioning of the rotation angle of the hand wheel through the cooperation of the positioning rod, the positioning port and the positioning slot, thereby solving the problem of the loosening of the fixation between the stepping motor and the mounting plate in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be further explained in detail below in combination with the drawings and specific embodiments.

[0019] Figure 1 It is another view structural diagram of the utility model;

[0020] Figure 2 It is another view structural diagram of the utility model;

[0021] Figure 3 It is another view structural diagram of the utility model;

[0022] Figure 4 It is another view structural diagram of the utility model;

[0023] Figure 5 It is another view structural diagram of the utility model;

[0024] Figure 6 It is another view structural diagram of the utility model Figure 5 It is another view structural diagram of the utility model

[0025] Figure 7 It is another view structural diagram of the utility model.

[0026] In the figure: 1, mounting plate; 2, mounting groove; 3, motor body; 4, positioning channel; 5, positioning block; 6, adjusting disc; 7, rotating shaft; 8, adjusting rod; 9, first cavity; 10, first gear; 11, first tooth ring; 12, first bevel gear; 13, second bevel gear; 14, third bevel gear; 15, fourth bevel gear; 16, hand wheel; 17, positioning rod; 18, positioning groove; 19, positioning disc; 20, spring. Specific embodiments

[0027] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are involved in the protection scope of the utility model.

[0028] As Figures 1-7The embodiment shown provides a step motor anti-loosening structure, which comprises a mounting plate 1, a mounting groove 2, a motor body 3, a positioning channel 4, a positioning block 5 and a relative moving mechanism. The mounting groove 2 is formed on the mounting plate 1, the bottom of the mounting groove 2 is provided with a mounting opening, the motor body 3 is arranged on one side of the mounting plate 1, the motor body 3 extends into the mounting groove 2 and is in sliding connection with the side wall of the mounting groove 2, the positioning channel 4 is in L shape, two positioning channels 4 are formed on the opposite two side walls of the mounting groove 2, the L-shaped positioning block 5 is arranged in the positioning channel 4, and the relative moving mechanism is arranged in the mounting plate 1 and used for driving the positioning blocks 5 on the two sides of the mounting groove 2 to move relatively.

[0029] With reference to Figure 3 With Figure 4 , the relative moving mechanism comprises an adjusting disc 6, a rotating shaft 7 and an adjusting rod 8, two first cavities 9 are formed on one side of the mounting plate 1, the first cavities 9 are in communication with the adjacent positioning channels 4, the positioning block 5 extends through the positioning channel 4 and extends into the first cavity 9, the adjusting disc 6 is rotatably arranged on the inner bottom wall of the first cavity 9, the rotating shaft 7 is rotatably arranged at the eccentric position of the side wall of the adjusting disc 6, the adjusting rod 8 is fixedly arranged on the rotating shaft 7, the end of the adjusting rod 8 away from the rotating shaft 7 is fixedly connected with the adjacent positioning block 5, a synchronous rotating mechanism is arranged in the mounting plate 1 and used for driving the two adjusting discs 6 to synchronously rotate, specifically, the synchronous rotating mechanism can drive the two adjusting discs 6 to synchronously rotate, then the rotating shaft 7 and the adjusting rod 8 pull the positioning blocks 5 on the two sides and make the positioning blocks 5 extend into the mounting groove 2, so that the mounting flange of the motor body 3 is clamped and fixed by the positioning block 5 and the bottom of the mounting groove 2, thereby facilitating the installation and fixation between the motor body 3 and the supporting plate.

[0030] With reference to Figures 4-6The synchronous rotating mechanism comprises the first gear 10 and the first tooth ring 11, the second cavity is arranged on one side of the installation plate 1, the first gear 10 is rotatably arranged on one side of the adjusting disc 6, the first connecting rod is fixedly arranged between the first gear 10 and the adjacent adjusting disc 6, the first tooth ring 11 is rotatably arranged in the second cavity, the first tooth ring 11 is engaged with the first gear 10, the driving mechanism is arranged on the installation plate 1 and used for driving the first gear 10 to rotate, the driving mechanism comprises the first bevel gear 12, the second bevel gear 13, the third bevel gear 14 and the fourth bevel gear 15, the third cavity is arranged on one side of the second cavity of the installation plate 1, the first bevel gear 12 is rotatably arranged on the inner top wall of the third cavity, the second connecting rod is fixedly arranged between the first bevel gear 12 and the adjacent first gear 10, the second bevel gear 13 is rotatably arranged on the side wall of the third cavity, the second bevel gear 13 is engaged with the first bevel gear 12, the fourth cavity is arranged on one side of the third cavity of the installation plate 1, the third bevel gear 14 is rotatably arranged on the side wall of the fourth cavity, the third connecting rod is fixedly arranged between the third bevel gear 14 and the second bevel gear 13, the fourth bevel gear 15 is rotatably arranged on the inner top wall of the fourth cavity, the fourth bevel gear 15 is engaged with the third bevel gear 14, the hand wheel 16 is rotatably arranged on the installation plate 1, the fourth connecting rod is fixedly arranged between the hand wheel 16 and the fourth bevel gear 15, specifically, the rotation of the hand wheel 16 can drive the fourth bevel gear 15 to rotate, the third bevel gear 14 and the second bevel gear 13 are driven to rotate through the engagement between the third bevel gear 14 and the fourth bevel gear 15, one of the first gears 10 is driven to rotate through the engagement between the first bevel gear 12 and the second bevel gear 13, and the two first gears 10 and the two adjusting discs 6 are driven to rotate through the engagement between the first gear 10 and the first tooth ring 11, the positioning block 5 is pulled to relatively move through the rotating shaft 7 and the adjusting rod 8 in the process of the rotation of the adjusting disc 6, and therefore the motor body 3 is conveniently installed and fixed.

[0031] Referring to Figures 5-7Further comprising a positioning mechanism arranged between the hand wheel 16 and the mounting plate 1 for positioning the rotation angle of the hand wheel 16, the positioning mechanism comprises a positioning port, a positioning rod 17 and a positioning groove 18, the positioning port is arranged on the hand wheel 16, the positioning rod 17 is slidably arranged in the positioning port, the top end of the positioning rod 17 is fixedly provided with a positioning disc 19, the mounting plate 1 is annularly provided with a plurality of positioning grooves 18 on the side of the fourth connecting rod, the positioning grooves 18 are matched with the positioning rod 17 in shape, a reset groove is arranged on the hand wheel 16 and communicates with the positioning port, a spring 20 is sleeved on the positioning rod 17, and the two ends of the spring 20 are fixedly connected with the groove bottom of the reset groove and the positioning disc 19 respectively, specifically, the positioning rod 17 can be driven to extend into the positioning groove 18 under the tension of the spring 20, so that the rotation angle of the hand wheel 16 can be positioned through the cooperation of the positioning rod 17 with the positioning port and the positioning groove 18 respectively, thereby avoiding loosening of the fixation of the motor body 3.

[0032] In the embodiment, in use, the operator pulls the positioning disc 19 after extending one end of the motor body 3 into the mounting groove 2, so that the positioning rod 17 is moved out of the positioning groove 18, then the operator rotates the hand wheel 16, the rotation of the hand wheel 16 can drive the fourth bevel gear 15 to rotate, and at the same time, the third bevel gear 14 and the second bevel gear 13 are driven to rotate through the meshing of the third bevel gear 14 and the fourth bevel gear 15, so that one of the first gears 10 is driven to rotate through the meshing of the first bevel gear 12 and the second bevel gear 13, and then the two first gears 10 and the two adjusting discs 6 are driven to rotate through the meshing of the first gear 10 and the first tooth ring 11, in the process of rotating the adjusting disc 6, the positioning block 5 can be pulled to move relatively through the rotating shaft 7 and the adjusting rod 8, and the mounting flange of the motor body 3 is clamped and fixed by the positioning block 5 cooperating with the groove bottom of the mounting groove 2, so as to facilitate the mounting and fixing between the motor body 3 and the supporting plate, at this time, the operator releases the positioning disc 19, so that the positioning rod 17 can be driven to extend into the positioning groove 18 under the tension of the spring 20, so that the rotation angle of the hand wheel 16 can be positioned through the cooperation of the positioning rod 17 with the positioning port and the positioning groove 18 respectively, thereby avoiding loosening of the fixation of the motor body 3.

[0033] The above is only a preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A loosening prevention structure of a stepping motor comprising a mounting plate (1), characterized in that, Also include installation slot (2), motor body (3), positioning channel (4), positioning block (5) and relative movement mechanism, the installation slot (2) is opened in the mounting plate (1), the slot bottom of the installation slot (2) is provided with installation port, the motor body (3) is arranged in one side of the mounting plate (1), the motor body (3) is inserted into the installation slot (2) and is connected with the sliding side wall of the installation slot (2), the positioning channel (4) is provided as L-shaped, two positioning channels (4) are opened in the opposite two side walls of the installation slot (2), the L-shaped positioning block (5) is slidably arranged in the positioning channel (4), the relative movement mechanism is arranged in the mounting plate (1), for driving the positioning block (5) on both sides of the installation slot (2) to move relatively.

2. The anti-loosening structure of a stepper motor according to claim 1, wherein The relative movement mechanism includes adjusting disc (6), shaft (7) and adjusting rod (8), the mounting plate (1) is located in the installation slot (2) one side and is provided with two first cavities (9), the first cavity (9) is communicated with the adjacent positioning channel (4), wherein the positioning block (5) penetrates the positioning channel (4) and extends into the first cavity (9), the inner bottom wall of the first cavity (9) is rotatably provided with adjusting disc (6), the eccentric position of the side wall of the adjusting disc (6) is rotatably provided with shaft (7), the shaft (7) is fixedly provided with adjusting rod (8), the end of the adjusting rod (8) away from the shaft (7) is fixedly connected with the adjacent positioning block (5), the mounting plate (1) is provided with synchronous rotating mechanism for driving two adjusting discs (6) to rotate synchronously.

3. The anti-loosening structure of a stepper motor according to claim 2, wherein The synchronous rotating mechanism includes first gear (10) and first tooth ring (11), the mounting plate (1) is provided with second cavity on one side of two first cavities (9), the second cavity is rotatably provided with the first gear (10) on one side of the adjusting disc (6), the first connecting rod is fixedly arranged between the first gear (10) and the adjacent adjusting disc (6), the first tooth ring (11) is rotatably arranged in the second cavity, the first tooth ring (11) is engaged with the first gear (10), the mounting plate (1) is provided with driving mechanism for driving the first gear (10) to rotate.

4. The anti-loosening structure of a stepper motor according to claim 3, wherein The driving mechanism comprises a first bevel gear (12), a second bevel gear (13), a third bevel gear (14) and a fourth bevel gear (15), a third cavity is formed on one side of the mounting plate (1), a first bevel gear (12) is rotatably arranged on the inner top wall of the third cavity, a second connecting rod is fixedly arranged between the first bevel gear (12) and the first gear (10) adjacent to the first bevel gear (12), a second bevel gear (13) is rotatably arranged on the side wall of the third cavity, the second bevel gear (13) is engaged with the first bevel gear (12), a fourth cavity is formed on one side of the mounting plate (1) located in the third cavity, a third bevel gear (14) is rotatably arranged on the side wall of the fourth cavity, a third connecting rod is fixedly arranged between the third bevel gear (14) and the second bevel gear (13), a fourth bevel gear (15) is rotatably arranged on the inner top wall of the fourth cavity, the fourth bevel gear (15) is engaged with the third bevel gear (14), a hand wheel (16) is rotatably arranged on the mounting plate (1), and a fourth connecting rod is fixedly arranged between the hand wheel (16) and the fourth bevel gear (15).

5. The anti-loosening structure of a stepper motor according to claim 4, wherein Further comprising a positioning mechanism, the positioning mechanism is arranged between the hand wheel (16) and the mounting plate (1), and is used for positioning the rotation angle of the hand wheel (16), the positioning mechanism comprises a positioning port, a positioning rod (17) and a positioning groove (18), the positioning port is formed on the hand wheel (16), the positioning rod (17) is slidably arranged in the positioning port, a positioning disc (19) is fixedly arranged at the top end of the positioning rod (17), a plurality of positioning grooves (18) are annularly formed on the mounting plate (1) around the fourth connecting rod, and the positioning grooves (18) are matched with the positioning rod (17) in shape.

6. The anti-loosening structure of a stepper motor according to claim 5, wherein A reset groove is formed on the hand wheel (16), the reset groove is communicated with the positioning port, a spring (20) is sleeved on the positioning rod (17), and the two ends of the spring (20) are fixedly connected with the groove bottom of the reset groove and the positioning disc (19) respectively.

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