Worm and gear speed reducer assembling machine

Abstract

The invention discloses a worm and gear reducer assembly machine, which relates to the technical field of reducer part press-fit, and comprises a press-fit assembly machine and a press-fit rod, the press-fit rod is arranged on the press-fit assembly machine, a worm is arranged on the press-fit assembly machine, two ends of the worm are respectively provided with a bearing, the press-fit assembly machine is provided with an alignment press-fit assembly, and the alignment press-fit assembly is provided with a press-fit part. The alignment press-fit assembly comprises two bottom supporting rings which are symmetrically arranged; through operation of the alignment press-fit assembly, the multiple pressing plates are designed to gather and expand at equal intervals with the press-fit rod as the center, the press-fit assembly can flexibly adapt to the sizes of to-be-press-fit bearings of speed reducers of different specifications, the universality of the alignment press-fit assembly is improved, the operation of manually and frequently replacing pressing sleeves in the prior art is replaced, and the production efficiency is improved. A pressing sleeve does not need to be manufactured independently for each bearing size, and the steps of manual pressing sleeve selection and alignment adjustment are reduced.

Description

Technical Field

[0001] This invention relates to the field of speed reducer parts press-fit technology, specifically a worm gear reducer assembly machine. Background Technology

[0002] In the assembly process of worm gear reducers, core assembly components such as the worm shaft, worm shaft, and bearings in different mounting positions often exhibit significant dimensional diversity. As the actuating component on the assembly machine that directly contacts the parts, the pressure head is responsible for evenly transmitting pressure to the parts during the pressing process. If the size and shape of the pressure head do not match the parts, it can easily cause localized stress concentration, leading to uneven pressure distribution, which in turn affects the pressing quality and may even damage the parts.

[0003] To address this issue, existing technologies typically employ a manual method, installing a pressure sleeve that matches the size and shape of the part between the part and the pressure head. One end of this sleeve is fitted against the pressure-applying surface of the pressure head, while the other end is perfectly adapted to the force-bearing surface of the part (such as the end face of a bearing or the stepped surface of a shaft). This transition structure achieves uniform pressure transmission. However, this manual method of changing and placing the pressure sleeve has significant drawbacks: firstly, operators need to frequently select the appropriate type of pressure sleeve from a wide variety of sizes, significantly increasing preparation time; secondly, the alignment of the pressure sleeve must be repeatedly adjusted during placement to ensure precise alignment between the sleeve, the part, and the pressure head. Any slight misalignment can cause abnormal pressure transmission, thereby significantly extending the assembly cycle.

[0004] Furthermore, traditional press-fitting processes typically employ a single-sided, sequential pressing method. For example, when press-fitting bearings at both ends of a worm gear shaft or worm shaft, one end must be press-fitted first, then the part must be manually flipped and repositioned before pressing the other end. During the flipping process, the part is prone to deviating from its initial position, making it difficult to maintain consistent concentricity at both ends and affecting assembly accuracy. Simultaneously, the additional flipping and repositioning operations increase process complexity, further reducing overall assembly efficiency.

[0005] Therefore, a worm gear reducer assembly machine is proposed. Summary of the Invention

[0006] The purpose of this invention is to provide a worm gear reducer assembly machine to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a worm gear reducer assembly machine, comprising a press-fit assembly machine and a press-fit rod, the press-fit rod being mounted on the press-fit assembly machine, a worm gear being mounted on the press-fit assembly machine, a bearing being mounted at each end of the worm gear, and an alignment press-fit assembly being mounted on the press-fit assembly machine, the alignment press-fit assembly comprising two symmetrically arranged bottom support rings, the two bottom support rings being respectively fixedly connected to the bottom end of the press-fit rod and the table surface of the press-fit assembly machine, each of the two bottom support rings having a cavity with an open end, the cavity openings of the two bottom support rings being located on the sides of the two bottom support rings that are close to each other, and each side of the two bottom support rings that are close to each other being rotatably connected to a bearing. A turntable is provided. On the side of the two turntables that are close to each other, a vortex block is fixedly connected. On the side of the two bottom support rings that are close to each other, a top plate is fixedly connected. Each of the two top plates has four guide slots arranged in a ring. On the side of the two turntables that are far from each other, a servo motor is fixedly connected. The servo motor is located in the cavity of the bottom support ring. The fixed end of the servo motor is fixedly connected to the inner wall of the bottom support ring. A slider is slidably connected in each guide slot. The side of each slider that is far from the turntable extends out of the guide slot. On the side of each slider that is close to the turntable, multiple guide blocks are fixedly connected in a linear array. On the side of each slider that is far from the turntable, a pressure plate is installed.

[0008] Furthermore, the press assembly machine has a slide groove on the side near the worm gear. Three guide blocks are slidably connected in a linear array within the slide groove. Each of the three guide blocks has a guide rod fixedly connected to it. Each of the three guide rods has a support rod fixedly connected to it on the side away from the guide block. Each of the three support rods has a bidirectional threaded rod rotatably connected to its end away from the guide rod. A bearing rod is fixedly connected to each of the three guide rods. A small motor is fixedly connected to the end of each of the three bearing rods away from the guide rod. The output shaft of each of the three small motors is fixedly connected to the adjacent bidirectional threaded rod. Two connecting rods are symmetrically slidably connected to each of the three guide rods. The connecting rods are threadedly connected to the bidirectional threaded rod. An arc-shaped block is fixedly connected to the end of each connecting rod away from the corresponding guide block.

[0009] Furthermore, each bottom support ring corresponds vertically and coaxially with the press-fit rod.

[0010] Furthermore, the turntable is connected to the bottom support ring for rotational limitation.

[0011] Furthermore, the vortex block extends outward from one side of the center of the turntable in a spiral shape, with each spiral being equidistant from the other.

[0012] Furthermore, the four guide slots on the same top plate extend outward from the center of the top plate.

[0013] Furthermore, the slider and the pressure plate are detachably connected by bolts.

[0014] Furthermore, the curved blocks are made of rubber, and the inner surface of the curved blocks has an anti-slip texture.

[0015] Compared with the prior art, the beneficial effects of the present invention are: By aligning the operation of the press-fit assembly, multiple pressure plates are designed to converge and expand at equal intervals around the press-fit rod. This allows for flexible adaptation to the size of bearings to be press-fitted in different specifications of reducers, improving the versatility of the alignment press-fit assembly. It replaces the operation of frequently changing the pressure sleeve manually in the existing technology, eliminating the need to manufacture pressure sleeves separately for each bearing size and reducing the steps of manually selecting pressure sleeves and aligning adjustments.

[0016] By aligning and pressing the assembly, the parts of the reducer to be pressed are actively corrected, aligned, and clamped, so that multiple parts of the reducer to be pressed can be aligned with each other in the pressing position of the insertion hole, and remain vertical and coaxial with the pressing rod during the pressing process. This prevents the parts of the reducer to be pressed from tilting and unevenly stressed during the pressing process, thus ensuring the pressing quality.

[0017] By aligning the press-fit assembly, both ends of the parts to be press-fitted on the reducer can be press-fitted simultaneously in one go, without the need for manual flipping of the parts. This avoids the parts deviating from their initial position during the flipping process, thus ensuring the concentricity of the press-fitting at both ends, improving assembly accuracy, simplifying the press-fitting process, and improving the overall assembly efficiency of the worm gear reducer. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the overall device of the present invention; Figure 2 This is a schematic diagram showing the positions of the worm gear, bearing, guide block, and other structures of the present invention; Figure 3 This is an exploded view of the guide rod, bidirectional threaded rod, connecting rod, and other structures of the present invention. Figure 4 This is a cross-sectional schematic diagram of the press-fit assembly machine, bottom support ring, and other structures of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle; Figure 6 This is a schematic diagram showing the positions of the bottom support ring, top plate, pressure plate, and other structures of the present invention; Figure 7 This is an exploded view of the bottom support ring, vortex block, pressure plate, and other structures of the present invention; Figure 8 This is a schematic diagram showing the positions of the slider, guide block, pressure plate, and other structures of the present invention.

[0019] In the picture: 11. Press-fit assembly machine; 12. Press-fit rod; 13. Worm gear; 14. Bearing; 21. Bottom support ring; 22. Turntable; 23. Scroll block; 24. Top plate; 25. Guide groove; 26. Servo motor; 27. Slider; 28. Guide block; 29. ​​Pressure plate; 210. Slide groove; 211. Guide block; 212. Guide rod; 213. Support rod; 214. Two-way threaded rod; 215. Bearing rod; 216. Small motor; 217. Connecting rod; 218. Arc block. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0021] The embodiments provided by this invention: Please see Figures 1 to 8 As shown, a worm gear reducer assembly machine includes a press assembly machine 11 and a press assembly rod 12. The press assembly rod 12 is mounted on the press assembly machine 11, and a worm gear 13 is mounted on the press assembly machine 11. A bearing 14 is mounted at each end of the worm gear 13.

[0022] In the worm gear reducer, the worm wheel and worm are the core components. Both ends of the worm wheel or worm need to be press-fitted to the bearing 14. Here, we take the worm as an example.

[0023] Wherein: the pressing rod 12 serves as the hydraulic pressing output end of the pressing assembly machine 11, and the pressing rod 12 is driven by the hydraulic device on the pressing assembly machine 11.

[0024] Among them, the two bearings 14 are plugged into and adapted to the worm gear 13.

[0025] The press-fit assembly machine 11 is equipped with an alignment press-fit assembly for aligning and pressing-fitting worm gear reducer parts. The alignment press-fit assembly includes two symmetrically arranged bottom support rings 21. The two bottom support rings 21 are respectively fixedly connected to the bottom end of the press-fitting rod 12 and the table surface of the press-fit assembly machine 11. Each bottom support ring 21 has a cavity with one open end. The openings of the cavities of the two bottom support rings 21 are located on the sides of the two bottom support rings 21 that are close to each other. Each side of the two bottom support rings 21 that is close to each other is rotatably connected to a turntable 22. Each side of the two turntables 22 that is close to each other... A vortex block 23 is fixedly connected. A top plate 24 is fixedly connected to the end of each of the two bottom support rings 21 that are close to each other. Each top plate 24 has four guide grooves 25 arranged in a circular array. A servo motor 26 is fixedly connected to the side of each of the two turntables 22 that are far from each other. The servo motor 26 is located inside the cavity of the bottom support ring 21, and its fixed end is fixedly connected to the inner wall of the bottom support ring 21. A slider 27 is slidably connected in each guide groove 25. The side of each slider 27 away from the turntable 22 extends out of the guide groove 25. Each slider 27... On the side of the turntable 22, multiple guide blocks 28 are fixedly connected in a linear array. On the side of each slider 27 away from the turntable 22, a pressure plate 29 is installed. On the side of the press assembly machine 11 near the worm gear 13, a slide groove 210 is provided. Three guide blocks 211 are slidably connected in a linear array within the slide groove 210. Each of the three guide blocks 211 is fixedly connected to a guide rod 212. On the side of each guide rod 212 away from the guide block 211, a support rod 213 is fixedly connected. At the end of each support rod 213 away from the guide rod 212... A rotatable connection includes a bidirectional threaded rod 214. A bearing rod 215 is fixedly connected to each of the three guide rods 212. A small motor 216 is fixedly connected to the end of each of the three bearing rods 215 away from the guide rod 212. The output shafts of the three small motors 216 are fixedly connected to the adjacent bidirectional threaded rod 214. Two connecting rods 217 are symmetrically slidably connected to each of the three guide rods 212. The connecting rods 217 are threadedly connected to the bidirectional threaded rod 214. An arc-shaped block 218 is fixedly connected to the end of each connecting rod 217 away from the corresponding guide block 211.

[0026] Among them, both bottom support rings 21 are vertically coaxial with the press rod 12.

[0027] Where: Reference Figure 5 As shown, the turntable 22 is rotatably connected to the bottom support ring 21. The function of the bottom support ring 21 is to assist the turntable 22 in rotating and to share the pressure with the servo motor 26, thus preventing damage to the servo motor 26 when pressure is applied by the pressure rod 12.

[0028] Where: Reference Figure 5 , Figure 7As shown, the vortex block 23 extends outward from the center of the turntable 22 in a spiral shape on the turntable 22, with each spiral being equidistant from the others. Multiple guide blocks 28 at the bottom of the same slider 27 are inserted into several spirals of the vortex block 23. Furthermore, the installation position of the guide block 28 at the bottom of the slider 27 is adapted and adjusted to the corresponding position of the vortex block 23. In other words, when the four sliders 27 are installed on the vortex block 23 as intended, the position of the pressure plate 29 connected to the four sliders 27 can match the corresponding bearing 14. The involute characteristics of the vortex block 23 will not cause any error in the installation position of the pressure plate 29 and the bearing 14.

[0029] Among them, the four guide grooves 25 on the same top plate 24 extend outward from the center of the top plate 24.

[0030] The slider 27 and the pressure plate 29 are detachably connected by bolts. This allows the user to replace the pressure plate 29 if its size, shape, or other parameters do not meet the pressing requirements of the worm gear reducer.

[0031] Among them, the outer surface of the bidirectional threaded rod 214 has two threaded grooves with opposite directions.

[0032] Among them, the arc-shaped block 218 is made of rubber, and the inner surface of the arc-shaped block 218 is provided with anti-slip texture.

[0033] In the initial state of the alignment and pressing assembly assembly, that is, before the pressing assembly machine 11 and the pressing rod 12 perform the pressing and fitting work on the reducer parts, the state of each structure within the alignment and pressing assembly assembly is as follows: At this time, the pressing rod 12 has not extended downward from the pressing assembly machine 11, and the slider 27 is located at the end of the guide groove 25 away from the center of the top plate 24. That is, at this time, the annular size formed by the inner surfaces of the four pressure plates 29 on the same bottom support ring 21 is the largest. The connecting rod 217 is located at the end of the guide rod 212 and the bidirectional threaded rod 214 away from the support rod 213. That is, at this time, the annular size formed by the inner surfaces of the two arc-shaped blocks 218 on the same guide block 211 is the largest. The three bottom support rings 21 are stacked at the bottom of the slide groove 210, and the bottommost bottom support ring 21 is in contact with the table surface of the pressing assembly machine 11.

[0034] When the press assembly machine 11 and press assembly rod 12 need to perform press assembly work on the reducer parts, the specific procedures are as follows: The user drives the output shafts of two servo motors 26 to rotate simultaneously. While the output shafts of the servo motors 26 rotate, the servo motors 26 drive the turntable 22 to rotate on the bottom support ring 21. Simultaneously, the turntable 22 drives the volute block 23 on it to rotate. As the volute block 23 rotates, it applies a deflection force to the sliders 27 via multiple guide blocks 28 at the bottom of the four sliders 27, deflecting the force along the grain of the volute block 23. However, because the sliders 27 are limited by the guide grooves 25, they can only move linearly along the guide grooves 25. Therefore, under the limiting effect of the guide grooves 25, the rotation of the volute block 23 can drive the sliders 27 to slide linearly along the guide grooves 25. Furthermore, as the output shafts of the servo motors 26 rotate, the four sliders 27 on the same bottom support ring 21 can slide together or apart along their corresponding guide grooves 25, and simultaneously, the four sliders 27 synchronously drive the corresponding pressure plates 29 to move. As mentioned above, "both bottom support rings 21 are vertically coaxial with the pressing rod 12," and thus, the four pressing plates 29 move synchronously towards or away from each other, with the axis of the bottom support ring 21 as the center point. That is, the ring formed by the inner surfaces of the four pressing plates 29 is equidistantly enlarged or reduced with the pressing rod 12 as the center point and the origin. Since the distance between the four pressing plates 29 is at its maximum in the initial state, the output shaft of the servo motor 26 rotates, driving the vortex block 23 to rotate, thereby causing the four pressing plates 29 to move towards the center of the bottom support ring 21. The above adjustment process can be regarded as adjusting the four pressing plates 29 into rings of different diameters, which can be adjusted according to the size of different parts to be pressed, that is, according to the diameter of the bearing 14 assembled with the worm gear.

[0035] Meanwhile, the existing worm 13 and worm wheel used for the reducer are both composed of a shaft and a helical tooth part in the middle. After the shaft in the middle of the worm 13 or worm wheel is press-fitted with the bearings 14 at both ends, the shaft ends of the worm 13 and worm wheel will protrude from the surface of the bearings 14 and extend out of the reducer housing for connecting the motor or other input / output devices. The hollow area between the four pressure plates 29 serves to accommodate the protruding shaft of the worm 13 after the press-fitting is completed.

[0036] It should be added that when press-fitting worm gears 13 and bearings 14 of different models and sizes, if the height of the end of the worm gear 13 protruding from the bearing 14 after press-fitting exceeds the height of the pressure plate 29, or if the size of the bearing 14 is too large or too small, causing the pressure plate 29 to not properly contact the bearing 14, the user can remove the pressure plate 29 from the slider 27 using bolts and replace it accordingly. The expansion and contraction of the four pressure plates 29 can accommodate bearing 14 sizes within a certain range for press-fitting. If the size difference between the bearing 14 and the pressure plate 29 is too large, the pressure plate 29 needs to be replaced.

[0037] Once the annular size formed by the inner surfaces of the four pressure plates 29 meets the user's requirements, specifically: the annular shape formed by the four pressure plates 29 is adapted to the pressing requirements of the bearing 14 and the worm gear 13. The four pressure plates 29 are moved to positions where they can simultaneously contact the bearing 14, and the gap between the four pressure plates 29 can be fully inserted into the end of the worm gear 13. At this time, the output shaft of the servo motor 26 is no longer rotated, and the positions of the four pressure plates 29 on the same bottom support ring 21 are fixed. After the above adjustments, the pressing of the worm gear 13 and bearing 14 of the same batch and model is universal.

[0038] The following is for reference Figure 2 as well as Figure 4 As shown, the user first places a bearing 14 on the four pressure plates 29 at the bottom, so that the four pressure plates 29 support the bearing 14. Then, the user first drives the bottommost of the three small motors 216. At this time, as the output shaft of the small motor 216 rotates, the output shaft of the small motor 216 drives the bidirectional threaded rod 214 to rotate on the support rod 213. While the bidirectional threaded rod 214 rotates, the two connecting rods 217 tend to deflect along the thread direction of the connecting rod 217. However, under the limiting action of the guide rod 212, the two connecting rods 217 slide linearly on the guide rod 212. Then, as the output shaft of the small motor 216 rotates, the two connecting rods 217 slide together on the guide rod 212, that is, the diameter of the ring formed between the two arc-shaped blocks 218 is decreasing. During this process, the user lifts the bottom guide block 211 and slides it upward within the slide groove 210. As the guide block 211 moves upward, the two arc-shaped blocks 218 on it, which are converging inward, move upward synchronously. Both the guide block 211 and the inner wall of the slide groove 210 are frosted to increase the friction of the contact, so that the guide block 211 can remain stationary within the slide groove 210 without being subjected to external force.

[0039] When the two guide blocks 28 that are converging inward move to both sides of the bearing 14 on the four pressure plates 29 at the bottom, the two guide blocks 28 gradually approach the sides of the bearing 14 until the two guide blocks 28 are in close contact with the bearing 14. At this time, the two guide blocks 28 limit and clamp the bearing 14 on the four pressure plates 29 at the bottom, and the user no longer drives the output shaft of the small motor 216 to rotate.

[0040] After completion, the user pushes the guide block 211 in the middle upward, causing the two guide blocks 211 in the middle and top to slide upward in the slide groove 210. Then, the user starts the small motor 216 in the middle, causing the two arc-shaped blocks 218 in the middle to converge inward and place the worm 13 on the top surface of the bearing 14 that has been fixed in position. During this process, the user aligns the two arc-shaped blocks 218 in the middle with the middle of the worm 13, so that the two arc-shaped blocks 218 in the middle clamp the worm 13. During the clamping process, the user corrects the position of the worm 13 so that the worm 13 is vertically coaxially aligned with the bearing 14 at the bottom, that is, the worm 13 is aligned to the position of pressing with the insertion hole of the bearing 14.

[0041] After completion, the user repeats the above operation, operating the top guide block 211 and the small motor 216 to align the remaining bearing 14 with the top of the worm gear 13. At this time, the bottom bearing 14 is placed on the four bottom pressure plates 29, the worm gear 13 is aligned with the top surface of the bottom bearing 14, and the other bearing 14 is aligned with the top of the worm gear 13. At this time, the worm gear 13 and the two bearings 14 are both subjected to the clamping force of the corresponding two arc-shaped blocks 218, fixing the state of the worm gear 13 and the two bearings 14.

[0042] At this point, both ends of the worm 13 are aligned with a bearing 14, and the insertion parts of the worm 13 and bearing 14 are in contact. However, since pressing has not yet been performed, the weight of the worm 13 and bearing 14 prevents them from being properly inserted. Therefore, the worm 13 and the two bearings 14 are only in a state of alignment and contact. It should be noted that at this point, the worm 13, the two bearings 14, the pressing rod 12, and the two annular rings composed of pressure plates 29 in the upper and lower sets are all in a vertically aligned and coaxial position.

[0043] After completion, the user hydraulically drives the pressing rod 12 to extend downwards. As the pressing rod 12 extends downwards, it causes the four pressure plates 29 at the top to move downwards, gradually contacting the upper surface of the bearing 14 at the top. With the continued extension of the pressing rod 12, the four pressure plates 29 apply pressure to the bearing 14 at the top, transmitting pressure to the worm gear 13 and the bearing 14 at the bottom. Under the pressure of the pressing rod 12, both ends of the worm gear 13 gradually insert into the corresponding bearings 14, meaning that both ends of the worm gear 13 simultaneously perform the pressing and fitting of the bearings 14. During this process, the height of both the worm gear 13 and the bearing 14 at the top decreases, causing the guide blocks 211 at the top and middle to slide downwards within the groove 210. During the press-fitting process of worm gear 13 and bearing 14, the clamping force of the two arc-shaped blocks 218 on both sides can hold worm gear 13 and bearing 14 in place and prevent worm gear 13 and bearing 14 from tilting during the press-fitting process.

[0044] After pressing is completed, the pressing rod 12 retracts upward under hydraulic drive, and the two bearings 14 are pressed onto both ends of the worm gear 13. The user needs to remove the pressed worm gear 13 to proceed with the next pressing operation, as follows: The user drives three small motors 216 to operate simultaneously. The output shafts of the three small motors 216 rotate in opposite directions, causing multiple arc-shaped blocks 218 to be moved to both sides, thus preventing the arc-shaped blocks 218 from contacting the worm gear 13 and bearings 14. The three guide blocks 211 then slide downward again within the pressing groove 210. The user then removes the pressed worm gear 13 and bearings 14.

[0045] At this point, the worm gear 13 and bearing 14 that have been press-fitted are removed. Since the worm gear 13 and bearing 14 that need to be press-fitted in the same batch are of the same model and size, there is no need to adjust the pressure plate 29 again in the press-fitting work of the same batch of reducer parts. That is, at this time, with the removal of the worm gear 13 and bearing 14, the alignment and pressing assembly are synchronously reset, and the user can repeat the above operation to perform subsequent press-fitting work on the worm gear 13 and bearing 14.

[0046] In summary, the following beneficial effects can be achieved by aligning the operation of the press-fit assembly: Existing technologies rely on manual selection and replacement of fitting pressure sleeves, and require repeated adjustments to the alignment position, resulting in long preparation times and extended assembly cycles.

[0047] By aligning the operation of the press-fit assembly, multiple press plates 29 are designed to converge and expand at equal intervals around the press-fit rod 12, which can flexibly adapt to the size of the bearings 14 to be press-fitted in different specifications of reducers. This improves the versatility of the alignment press-fit assembly, replaces the operation of frequently changing the press sleeve manually in the prior art, eliminates the need to make press sleeves separately for each bearing size, and reduces the steps of manually selecting press sleeves and aligning adjustments.

[0048] By aligning and pressing the assembly, the reducer parts to be pressed are actively corrected, aligned, and clamped, so that multiple reducer parts to be pressed can be aligned with each other at the pressing position of the insertion hole. During the pressing process, they remain vertically coaxial with the pressing rod 12, preventing the reducer parts to be pressed from tilting or unevenly stressed during the pressing process, thus ensuring the pressing quality.

[0049] By aligning the press-fit assembly, both ends of the parts to be press-fitted on the reducer can be press-fitted simultaneously in one go, without the need for manual flipping of the parts. This avoids the parts deviating from their initial position during the flipping process, thus ensuring the concentricity of the press-fitting at both ends, improving assembly accuracy, simplifying the press-fitting process, and improving the overall assembly efficiency of the worm gear reducer.

[0050] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A worm gear reducer assembly machine, comprising a press-fit assembly machine (11) and a press-fit rod (12), the press-fit rod (12) being mounted on the press-fit assembly machine (11), a worm (13) being mounted on the press-fit assembly machine (11), and a bearing (14) being mounted at each end of the worm (13), characterized in that: The press-fit assembly machine (11) is equipped with an alignment press-fit assembly component, which includes two symmetrically arranged bottom support rings (21). The two bottom support rings (21) are respectively fixedly connected to the bottom end of the press-fit rod (12) and the table of the press-fit assembly machine (11). Each of the two bottom support rings (21) has a cavity with one end open. The cavity openings of the two bottom support rings (21) are respectively located on the side of the two bottom support rings (21) that are close to each other. Each side of the two bottom support rings (21) that are close to each other is rotatably connected to a turntable (22). Each side of the two turntables (22) that are close to each other is fixedly connected to a vortex block (23). Each end of the two bottom support rings (21) that are close to each other is fixedly connected to a top plate (24). Each of the top plates (24) has four guide slots (25) arranged in a ring. Each of the two turntables (22) is fixedly connected to a servo motor (26) on the side away from each other. The servo motor (26) is located in the cavity of the bottom support ring (21). The fixed end of the servo motor (26) is fixedly connected to the inner wall of the bottom support ring (21). Each guide slot (25) is slidably connected to a slider (27). Each slider (27) extends out of the guide slot (25) on the side away from the turntable (22). Each slider (27) is fixedly connected to multiple guide blocks (28) in a straight line array on the side near the turntable (22). Each slider (27) is installed with a pressure plate (29) on the side away from the turntable (22).

2. The worm gear reducer assembly machine according to claim 1, characterized in that: The press assembly machine (11) has a slide groove (210) on the side near the worm gear (13). Three guide blocks (211) are slidably connected in a linear array in the slide groove (210). Each of the three guide blocks (211) is fixedly connected to a guide rod (212). Each of the three guide rods (212) is fixedly connected to a support rod (213) on the side away from the guide block (211). Each of the three support rods (213) is rotatably connected to a double-threaded rod (214) at the end away from the guide rod (212). The three guide rods (212) are fixedly connected to a double-threaded rod (214). A support rod (215) is connected. A small motor (216) is fixedly connected to the end of the three support rods (215) away from the guide rod (212). The output shaft of each of the three small motors (216) is fixedly connected to the adjacent bidirectional threaded rod (214). Two connecting rods (217) are symmetrically slidably connected to each of the three guide rods (212). The connecting rods (217) are threadedly connected to the bidirectional threaded rods (214). An arc-shaped block (218) is fixedly connected to the end of each connecting rod (217) away from the corresponding guide block (211).

3. The worm gear reducer assembly machine according to claim 1, characterized in that: Both bottom support rings (21) are vertically coaxial with the press rod (12).

4. The worm gear reducer assembly machine according to claim 1, characterized in that: The turntable (22) is connected to the bottom support ring (21) in a limited rotational manner.

5. The worm gear reducer assembly machine according to claim 1, characterized in that: The vortex block (23) is spiraling on the turntable (22) and extends outward from the center of the turntable (22) in multiple circles, with each circle being equidistant from the other.

6. The worm gear reducer assembly machine according to claim 1, characterized in that: The four guide slots (25) on the same top plate (24) extend outward from the center of the top plate (24).

7. The worm gear reducer assembly machine according to claim 1, characterized in that: The slider (27) and the pressure plate (29) are detachably connected by bolts.

8. The worm gear reducer assembly machine according to claim 2, characterized in that: The arc-shaped block (218) is made of rubber, and the inner surface of the arc-shaped block (218) is provided with anti-slip texture.

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