Gear shaft assembly tool for servo speed reducer

Abstract

The utility model relates to the field of speed reducers, and discloses a gear shaft assembly tool for a servo speed reducer, the gear shaft assembly tool comprises a bottom plate, an assembly table, a first L-shaped frame, a fixing column, a first electric telescopic rod and a pressing disc, the assembly table and the first L-shaped frame are both fixedly installed on the top of the bottom plate, and the fixing column is fixedly installed on the first L-shaped frame and located over the assembly table; the first electric telescopic rod is fixedly installed at the bottom of the fixing column, and the pressing disc is fixedly installed at the output shaft end of the first electric telescopic rod. Compared with the prior art, the planet carrier assembling table has the following advantages and effects that the planet carrier can be placed on the assembling table to be rapidly and accurately positioned, the planet carrier can be reliably and stably fixed to the assembling table, in the process of assembling a gear shaft in a shaft hole in the planet carrier, the planet carrier can be effectively prevented from shifting, the accuracy of the assembling position can be guaranteed, and the assembling efficiency is improved. And the gear shaft can be accurately and quickly pressed into the shaft hole in the planet carrier, the operation is simple and convenient, and the practicability is good.

Description

Technical Field

[0001] This application relates to the technical field of speed reducers, and particularly relates to a gear shaft assembly tool for a servo speed reducer. Background Art

[0002] The characteristics of a servo speed reducer are relatively compact structure, small volume, small backlash, high precision, long service life, large output torque, and high transmission efficiency. Nowadays, servo speed reducers are widely used in servo, stepper, DC and other drive systems. Its function is to reduce the speed, increase the torque and reduce the inertia ratio of the load / motor on the premise of ensuring precise transmission. When manufacturing a servo speed reducer, correct assembly, use and maintenance of the servo speed reducer are important links to ensure the normal operation of mechanical equipment. In the assembly process, the gear shaft needs to be inserted into the shaft hole on the planet carrier, and an assembly tool is required for this purpose. After retrieval, the patent document with the authorization announcement number CN215148626U discloses a servo speed reducer planetary gear shaft assembly tool with convenient assembly, including a fixed table. A planet carrier placement hole is provided in the center of the fixed table. Fixed arc plates are provided inside the planet carrier placement hole on the fixed table, and there are two fixed arc plates. Pulling blocks are provided on both sides of the fixed table. A pull rod is provided between the adjacent pulling block and the fixed arc plate. The pull rod is slidably connected to the fixed table through a chute.

[0003] The above-mentioned related solutions are found to still have at least the following defects in actual use: When clamping and fixing the planet carrier by using the elastic force of the spring, due to the elastic and deformable characteristics of the spring, the stability of clamping and fixing the planet carrier is poor, and thus the clamping and fixing of the planet carrier is not firm and reliable enough. During the process of assembling the gear shaft into the shaft hole on the planet carrier, the planet carrier may shift under the action of the force applied during assembly, and thus the accuracy of the assembly position cannot be guaranteed. Therefore, we propose a gear shaft assembly tool for a servo speed reducer to solve the above problems. Summary of the Utility Model

[0004] The purpose of this application is to provide a gear shaft assembly tool for a servo speed reducer, which has the effects of being able to quickly and accurately position the planet carrier on the assembly table, being able to firmly and stably fix the planet carrier on the assembly table, effectively avoiding the displacement of the planet carrier during the process of assembling the gear shaft into the shaft hole on the planet carrier, ensuring the accuracy of the assembly position, and being able to accurately and quickly press the gear shaft into the shaft hole on the planet carrier, with simple and convenient operation and good practicability.

[0005] The above technical object of the present application is achieved through the following technical solutions: A gear shaft assembly tooling for a servo speed reducer, including a bottom plate, an assembly table, an L-shaped frame I, a fixed column, an electric telescopic rod I and a pressing plate. The assembly table and the L-shaped frame I are both fixedly installed on the top of the bottom plate. The fixed column is fixedly installed on the L-shaped frame I and is located directly above the assembly table. The electric telescopic rod I is fixedly installed at the bottom of the fixed column. The pressing plate is fixedly installed at the output shaft end of the electric telescopic rod I. A first rubber pad is fixedly installed at the bottom of the pressing plate. A clamping mechanism and a positioning mechanism are arranged on the assembly table. The clamping mechanism is used to clamp and fix the planet carrier. The positioning mechanism is used to position the position of the planet carrier. A press-fitting mechanism is arranged on the pressing plate. The press-fitting mechanism is used to press the gear shaft into the shaft hole of the planet carrier.

[0006] The further setting of the present application is: The clamping mechanism includes a plurality of bases, a plurality of electric telescopic rods II, a plurality of arc-shaped clamping plates and a plurality of second rubber pads. The plurality of bases are all fixedly installed on the top of the assembly table and are distributed in an equidistant annular shape. The plurality of electric telescopic rods II are respectively fixedly installed on the corresponding bases. The plurality of arc-shaped clamping plates are respectively fixedly installed at the output shaft ends of the corresponding electric telescopic rods II. The plurality of second rubber pads are respectively fixedly installed on the side walls of the corresponding arc-shaped clamping plates away from the corresponding electric telescopic rods II.

[0007] The further setting of the present application is: The positioning mechanism includes a return spring and a positioning column. A vertical groove is opened on the top of the assembly table. The bottom end of the return spring is fixedly connected to the bottom inner wall of the vertical groove. The bottom end of the positioning column is slidably installed in the vertical groove and is fixedly connected to the top end of the return spring.

[0008] The further setting of the present application is: The press-fitting mechanism includes an L-shaped frame II, an electric hydraulic cylinder, a pressing plate and a third rubber pad. The L-shaped frame II is fixedly installed on the top of the pressing plate. The electric hydraulic cylinder is fixedly installed on the L-shaped frame II. The pressing plate is fixedly installed at the output shaft end of the electric hydraulic cylinder. The third rubber pad is fixedly installed at the bottom of the pressing plate. A first round hole is opened on the top of the pressing plate. The first round hole is located directly above the positioning column. The pressing plate is located directly above the first round hole. A second round hole communicating with the first round hole is opened on the top of the first rubber pad.

[0009] The further setting of the present application is: The diameter size of the first round hole is set to be the same as the diameter size of the second round hole. The diameter size of the first round hole is larger than the diameter size of the vertical groove.

[0010] The further setting of the present application is: The diameter size of the pressing plate is smaller than the diameter size of the first round hole.

[0011] The present application includes at least one of the following beneficial technical effects:

[0012] By using the positioning mechanism composed of a reset spring and a positioning post, this application can quickly and accurately position the position of the planet carrier on the assembly table, so as to facilitate the subsequent quick and accurate assembly of the gear shaft into the shaft hole on the planet carrier.

[0013] By using the electric telescopic rod 1, this application can control the vertical movement of the pressure plate and the first rubber pad, and then use the pressure plate to apply a vertically downward pressure to the planet carrier, so as to vertically press and fix the planet carrier on the assembly table. The first rubber pad can protect the upper surface of the planet carrier to avoid damage to the upper surface of the planet carrier caused by excessive pressing force.

[0014] By using the clamping mechanism composed of multiple bases, multiple electric telescopic rods 2, multiple arc-shaped clamping plates and multiple second rubber pads, this application can horizontally clamp and fix the planet carrier on the assembly table, and the second rubber pad can protect the clamped part of the outer wall of the planet carrier to avoid damage to the outer wall of the planet carrier caused by excessive clamping force. Furthermore, through the combined action of horizontal clamping and vertical pressing of the planet carrier, the effect of firmly and stably fixing the planet carrier can be achieved, and the planet carrier will not move during subsequent assembly, ensuring the accuracy of the assembly position.

[0015] By using the pressing mechanism composed of an L-shaped frame 2, an electric hydraulic cylinder, a pressure plate and a third rubber pad, and in cooperation with the common use of the first round hole and the second round hole, this application can accurately and quickly press the gear shaft into the shaft hole on the planet carrier, and the operation is simple and convenient. Brief Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a three-dimensional structure schematic diagram of this embodiment.

[0018] Figure 2 It is a main view cross-sectional three-dimensional structure schematic diagram of the assembly table.

[0019] Figure 3 It is a partial three-dimensional structure schematic diagram of this embodiment.

[0020] In the figure, 1 is the bottom plate; 2 is the assembly table; 3 is the first L-shaped frame; 4 is the fixed column; 5 is the first electric telescopic rod; 6 is the pressure plate; 7 is the first rubber pad; 8 is the base; 9 is the second electric telescopic rod; 10 is the arc-shaped clamping plate; 11 is the second rubber pad; 12 is the vertical groove; 13 is the return spring; 14 is the positioning column; 15 is the press-fitting mechanism; 151 is the second L-shaped frame; 152 is the electric hydraulic cylinder; 153 is the pressing plate; 154 is the third rubber pad; 16 is the first round hole; 17 is the second round hole. Detailed implementation manners

[0021] The technical solutions of the present application will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0022] See Figure 1 , Figure 2 and Figure 3 , the present application provides a gear shaft assembly tooling for a servo speed reducer, including a bottom plate 1, an assembly table 2, a first L-shaped frame 3, a fixed column 4, a first electric telescopic rod 5 and a pressure plate 6, wherein:

[0023] Both the assembly table 2 and the first L-shaped frame 3 are fixedly installed on the top of the bottom plate 1. The assembly table 2 is used to carry and support the planet carrier, providing a platform for assembling the gear shaft on the planet carrier. The fixed column 4 is fixedly installed on the first L-shaped frame 3 and is located directly above the assembly table 2. The first electric telescopic rod 5 is fixedly installed at the bottom of the fixed column 4. The pressure plate 6 is fixedly installed at the output shaft end of the first electric telescopic rod 5. A first rubber pad 7 is fixedly installed at the bottom of the pressure plate 6. The first electric telescopic rod 5 is used to control the vertical movement of the pressure plate 6 and the first rubber pad 7. By using the pressure plate 6 to apply a vertically downward pressure to the planet carrier, the planet carrier can be vertically pressed and fixed on the assembly table 2. The first rubber pad 7 can be used to protect the upper surface of the planet carrier, avoiding damage to the upper surface of the planet carrier caused by excessive pressing force.

[0024] In this embodiment, a clamping mechanism and a positioning mechanism are provided on the assembly table 2. The clamping mechanism is used to clamp and fix the planet carrier. The above-mentioned clamping mechanism includes a plurality of bases 8, a plurality of second electric telescopic rods 9, a plurality of arc-shaped clamping plates 10 and a plurality of second rubber pads 11. The plurality of bases 8 are all fixedly installed on the top of the assembly table 2 and are distributed in an equidistant circular pattern. The plurality of second electric telescopic rods 9 are respectively fixedly installed on the corresponding bases 8. The plurality of arc-shaped clamping plates 10 are respectively fixedly installed at the output shaft ends of the corresponding second electric telescopic rods 9. The plurality of second rubber pads 11 are respectively fixedly installed on the side walls of the corresponding arc-shaped clamping plates 10 away from the corresponding second electric telescopic rods 9. The second electric telescopic rod 9 is used to control the linear movement of the arc-shaped clamping plate 10. By using the combined use of the plurality of arc-shaped clamping plates 10, the planet carrier can be clamped and fixed in the horizontal direction, thereby improving the stability and reliability during the clamping and fixing of the planet carrier. During the process of assembling the gear shaft into the shaft hole of the planet carrier, the planet carrier will not shift, ensuring the accuracy of the assembly position. The second rubber pad 11 can be used to protect the clamped part of the outer wall of the planet carrier, avoiding damage to the outer wall of the planet carrier due to excessive clamping force. The positioning mechanism is used to position the position of the planet carrier. The above-mentioned positioning mechanism includes a return spring 13 and a positioning post 14. A vertical groove 12 is opened on the top of the assembly table 2. The bottom end of the return spring 13 is fixedly connected to the bottom inner wall of the vertical groove 12. The bottom end of the positioning post 14 is slidably installed in the vertical groove 12 and is fixedly connected to the top end of the return spring 13. The diameter of the positioning post 14 is slightly smaller than the diameter of the shaft hole on the planet carrier. By using the positioning post 14, when the planet carrier is placed on the assembly table 2, the top end of the positioning post 14 can be inserted into the shaft hole on the planet carrier, thereby positioning the position of the planet carrier placed on the assembly table 2, facilitating the subsequent rapid assembly of the gear shaft into the shaft hole on the planet carrier. A pressing mechanism 15 is provided on the pressure plate 6. The pressing mechanism 15 is used to press the gear shaft into the shaft hole of the planet carrier. The above-mentioned pressing mechanism 15 includes an L-shaped frame two 151, an electric hydraulic cylinder 152, a pressing plate 153 and a third rubber pad 154. The L-shaped frame two 151 is fixedly installed on the top of the pressure plate 6. The electric hydraulic cylinder 152 is fixedly installed on the L-shaped frame two 151. The pressing plate 153 is fixedly installed at the output shaft end of the electric hydraulic cylinder 152. The third rubber pad 154 is fixedly installed on the bottom of the pressing plate 153. A first round hole 16 is opened on the top of the pressure plate 6. The first round hole 16 is located directly above the positioning post 14. The pressing plate 153 is located directly above the first round hole 16. A second round hole 17 communicating with the first round hole 16 is opened on the top of the first rubber pad 7. By using the electric hydraulic cylinder 152, the movement of the pressing plate 153 can be controlled. By applying a vertically downward force to the gear shaft by the pressing plate 153, the gear shaft can be gradually pressed vertically into the shaft hole on the planet carrier, and the assembly operation of the gear shaft and the planet carrier can be carried out. The third rubber pad 154 can be used to protect the top part of the gear shaft, avoiding damage to the top surface of the gear shaft due to excessive pressure.

[0025] In this embodiment, it should be noted that the number of the positioning mechanism, the pressing mechanism 15, the first round hole 16 and the second round hole 17 are all set to be multiple and the same in number, and the number of the positioning mechanism, the pressing mechanism 15, the first round hole 16 and the second round hole 17 is set according to the number of the shaft holes on the planet carrier during actual assembly.

[0026] In this embodiment, the diameter sizes of the first round hole 16 and the second round hole 17 are set to be the same, the diameter size of the first round hole 16 is larger than the diameter size of the vertical groove 12, the first round hole 16 is used for inserting the gear shaft, and the second round hole 17 is provided to facilitate the smooth passing of the bottom end of the gear shaft. It should be noted that the diameter size of the first round hole 16 is slightly larger than the diameter size of the gear shaft, and the diameter size of the pressing plate 153 is smaller than the diameter size of the first round hole 16, which can ensure that the pressing plate 153 smoothly enters the first round hole 16.

[0027] In this embodiment, the first electric telescopic rod 5, the second electric telescopic rod 9 and the electric hydraulic cylinder 152 can all be obtained by purchasing in the market. The first electric telescopic rod 5, the second electric telescopic rod 9 and the electric hydraulic cylinder 152 are configured with power supplies, and their circuit connection modes and control modes belong to the mature technologies in the art, so they will not be elaborated in this article.

[0028] With the above structure, when the gear shaft assembly tooling for a servo reducer provided by the present application is in use, it can quickly and accurately position the planet carrier at the position on the assembly table 2, and can reliably and stably fix the planet carrier on the assembly table 2. During the process of assembling the gear shaft into the shaft hole on the planet carrier, it can effectively avoid the displacement of the planet carrier, ensure the accuracy of the assembly position, and can accurately and quickly press the gear shaft into the shaft hole on the planet carrier. The operation is simple and convenient, and the practicability is good. During specific operation, first take the planet carrier and place it on the assembly table 2, and align the shaft hole on the planet carrier with the positioning column 14. The top end of the positioning column 14 is inserted into the shaft hole on the planet carrier, and then the placement position of the planet carrier is determined. Then control the first electric telescopic rod 5 to extend and operate, and then control the pressure plate 6 and the first rubber pad 7 to move vertically downward until the first rubber pad 7 abuts against the upper surface of the planet carrier, and then stop the operation of the first electric telescopic rod 5. At this time, the planet carrier is firmly fixed on the assembly table 2. Then control the multiple second electric telescopic rods 9 to extend and operate, and then control the multiple arc-shaped clamping plates 10 and the multiple second rubber pads 11 to move linearly until the multiple second rubber pads 11 abut against the outer side wall of the planet carrier, and then stop the operation of the multiple second electric telescopic rods 9. At this time, the horizontal clamping and fixing of the planet carrier is completed. Furthermore, through the combined action of the horizontal clamping and vertical pressing of the planet carrier, the effect of firmly and stably fixing the planet carrier can be achieved, and the planet carrier will not move during subsequent assembly. After the pressing operation of the planet carrier is completed, take the gear shaft and vertically insert one end of the gear shaft into the first round hole 16 and penetrate the second round hole 17. At this time, this end of the gear shaft will be aligned with the shaft hole on the planet carrier. Then control the electric hydraulic cylinder 152 to extend and operate, and then control the pressure plate 153 and the third rubber pad 154 to move vertically downward, and gradually press the gear shaft into the shaft hole on the planet carrier. During the process that one end of the gear shaft gradually enters the shaft hole on the planet carrier, it will push the positioning column 14 to slide downward, and the return spring 13 is gradually compressed to generate elastic force. Furthermore, by using the compressible characteristic of the return spring 13, the positioning column 14 will not hinder the gear shaft from being smoothly pressed into the shaft hole on the planet carrier. When the gear shaft is pressed into the shaft hole on the planet carrier, by controlling the electric hydraulic cylinder 152 to contract and reset, the pressure plate 153 and the third rubber pad 154 can be controlled to move vertically upward and return to their original positions. Then control the first electric telescopic rod 5 and the multiple second electric telescopic rods 9 to contract and reset in sequence, and the pressure plate 6 and the multiple arc-shaped clamping plates 10 can be respectively returned to their original positions, and then the planet carrier assembled with the gear shaft can be taken down. Finally, under the elastic force of the return spring 13, the positioning column 14 can be controlled to automatically return to its original position. According to the above operation steps, the assembly operation of the next group of gear shafts and planet carriers can be continued.

Claims

1. A gear shaft assembly tooling for a servo speed reducer, characterized in that, It includes a bottom plate (1), an assembly table (2), an L-shaped frame one (3), a fixed column (4), a first electric telescopic rod (5), and a pressure plate (6). The assembly table (2) and the L-shaped frame one (3) are both fixedly installed on the top of the bottom plate (1). The fixed column (4) is fixedly installed on the L-shaped frame one (3) and is located directly above the assembly table (2). The first electric telescopic rod (5) is fixedly installed at the bottom of the fixed column (4). The pressure plate (6) is fixedly installed at the output shaft end of the first electric telescopic rod (5). A first rubber pad (7) is fixedly installed at the bottom of the pressure plate (6). A clamping mechanism and a positioning mechanism are arranged on the assembly table (2). The clamping mechanism is used to clamp and fix the planet carrier. The positioning mechanism is used to position the planet carrier. A pressing mechanism (15) is arranged on the pressure plate (6). The pressing mechanism (15) is used to press the gear shaft into the shaft hole of the planet carrier.

2. The gear shaft assembly tooling for a servo reducer according to claim 1, characterized in that: The clamping mechanism includes a plurality of bases (8), a plurality of second electric telescopic rods (9), a plurality of arc-shaped clamping plates (10), and a plurality of second rubber pads (11). The plurality of bases (8) are all fixedly installed on the top of the assembly table (2) and are distributed in an equidistant circular pattern. The plurality of second electric telescopic rods (9) are respectively fixedly installed on the corresponding bases (8). The plurality of arc-shaped clamping plates (10) are respectively fixedly installed at the output shaft ends of the corresponding second electric telescopic rods (9). The plurality of second rubber pads (11) are respectively fixedly installed on the side walls of the corresponding arc-shaped clamping plates (10) away from the corresponding second electric telescopic rods (9).

3. A gear shaft assembly tooling for a servo reducer according to claim 1, characterized in that: The positioning mechanism includes a return spring (13) and a positioning column (14). A vertical groove (12) is opened on the top of the assembly table (2). The bottom end of the return spring (13) is fixedly connected to the bottom inner wall of the vertical groove (12). The bottom end of the positioning column (14) is slidably installed in the vertical groove (12) and is fixedly connected to the top end of the return spring (13).

4. A gear shaft assembly tooling for a servo speed reducer according to claim 3, characterized in that: The pressing mechanism (15) includes an L-shaped frame two (151), an electric hydraulic cylinder (152), a pressing plate (153), and a third rubber pad (154). The L-shaped frame two (151) is fixedly installed on the top of the pressure plate (6). The electric hydraulic cylinder (152) is fixedly installed on the L-shaped frame two (151). The pressing plate (153) is fixedly installed at the output shaft end of the electric hydraulic cylinder (152). The third rubber pad (154) is fixedly installed at the bottom of the pressing plate (153). A first round hole (16) is opened on the top of the pressure plate (6). The first round hole (16) is located directly above the positioning column (14). The pressing plate (153) is located directly above the first round hole (16). A second round hole (17) communicating with the first round hole (16) is opened on the top of the first rubber pad (7).

5. A gear shaft assembly tooling for a servo speed reducer according to claim 4, characterized in that: The diameter size of the first round hole (16) is set to be the same as the diameter size of the second round hole (17). The diameter size of the first round hole (16) is larger than the diameter size of the vertical groove (12).

6. A gear shaft assembly tooling for a servo speed reducer according to claim 4, characterized in that: The diameter dimension of the pressing plate (153) is smaller than the diameter dimension of the first round hole (16).

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