Gear reducer assembly part placement positioning frame

Abstract

This utility model relates to the field of gear reducer assembly technology and discloses a parts placement and positioning frame for gear reducer assembly, including a gear reducer assembly table, the surface of which is provided with a positioning mechanism. This novel solution effectively drives the gears to rotate via a motor, thereby causing a set of meshing racks on the front and rear sides of the gear surface to move closer together, facilitating the simultaneous approach of a set of positioning arc plates to the planetary carrier. Then, an electric push rod effectively moves the limiting frame, support plate, and positioning arc plates upwards. When the inner wall of the bottom side of the positioning arc plate is in contact with the side of the planetary carrier, the electric push rod moves the limiting frame, support plate, and positioning arc plates downwards, causing the horizontal inner wall of the positioning arc plate to contact a portion of the top surface of the planetary carrier, achieving simultaneous horizontal and vertical limiting of the planetary carrier and improving the positioning effect. The arrangement of several ball bearings effectively reduces the friction between the movable frame and the surface of the gear reducer assembly table, assisting the movable frame in smooth sliding.

Description

Technical Field

[0001] This utility model belongs to the field of gear reducer assembly technology, specifically a parts placement and positioning frame for gear reducer assembly. Background Technology

[0002] Gear reducer assembly is the process of combining the various components of a gear reducer (such as gears, shafts, bearings, housing, end covers, seals, etc.) according to design requirements and technical specifications through a series of operations (such as positioning, connecting, adjusting, and tightening) into a complete and qualified gear reducer product. It is a crucial step in mechanical manufacturing, directly affecting the reducer's performance, precision, lifespan, and reliability. During gear reducer assembly, positioning frames are used to perform basic positioning of the parts to ensure smooth assembly operations.

[0003] Patent CN215148626U discloses a convenient assembly fixture for planetary gear shafts of servo reducers, relating to the field of servo reducer technology. It addresses the problem in existing technologies where planetary gear shaft assembly involves directly placing the planetary carrier on a worktable and then hammering the gear shaft into the planetary carrier's gear shaft hole using a tool. This hammering process is difficult to maintain the planetary carrier, and ensuring the gear shaft enters the planetary carrier's gear shaft hole vertically requires a high level of operator skill. If the gear shaft is not precisely inserted vertically into the planetary carrier's gear shaft hole, it can easily cause deformation of the planetary carrier, affecting its performance. The fixture in this invention features a planetary carrier placement hole at its center on a fixed platform. Two fixing arc plates are located inside the planetary carrier placement hole on the fixed platform. Pull blocks are located on both sides of the fixed platform, and pull rods are positioned between adjacent pull blocks and fixing arc plates. The pull rods are slidably connected to the fixed platform via sliding grooves.

[0004] However, the aforementioned servo reducer planetary gear shaft assembly fixture, which is easy to assemble, still has the following shortcomings: The aforementioned device clamps and fixes the planetary carrier using the elastic force of a spring. However, because the spring has the characteristic of elasticity and extensibility, the stability of clamping and fixing the planetary carrier is poor, resulting in an insufficiently firm and reliable clamping and fixing of the planetary carrier. Consequently, it is difficult to ensure the accuracy of the assembly position. Therefore, we propose a parts placement and positioning frame for assembling gear reducers. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this utility model provides a parts placement and positioning frame for assembling gear reducers. It effectively solves the problem that the existing device clamps and fixes the planetary carrier by the elastic force of the spring. Since the spring has the characteristic of elasticity and extensibility, the stability of clamping and fixing the planetary carrier is not good, so the clamping and fixing of the planetary carrier is not firm and reliable enough, and thus it is difficult to ensure the accuracy of the assembly position.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a parts placement and positioning frame for assembling a gear reducer, comprising a gear reducer assembly table, a positioning mechanism on the surface of the gear reducer assembly table, a set of auxiliary mechanisms symmetrically arranged on the surface of the positioning mechanism, the positioning mechanism including a bracket, the bracket being fixedly mounted at the bottom center of the gear reducer assembly table, a motor inside the bracket, a gear connected to the movable end of the motor, a set of racks meshing on the front and rear sides of the gear surface, a movable frame fixedly connected to the top of the rack, a limit frame abutting the top of the movable frame, a support plate engaging inside the limit frame, a positioning arc plate fixedly connected to one side of the support plate, a set of electric push rods symmetrically embedded inside the movable frame, and a plurality of ball bearings evenly engaged at the bottom of the movable frame.

[0007] Preferably, the set of racks and the set of movable frames are both centrally symmetrical about the center point of the gear.

[0008] Preferably, the limiting frame is connected to the movable frame via an electric push rod to form a lifting structure, and the positioning arc plate is connected to the limiting frame via a support plate to form a locking structure, wherein the top inner diameter of the positioning arc plate is smaller than the bottom inner diameter.

[0009] Preferably, two-thirds of the ball is engaged inside the movable frame, allowing the ball to rotate and roll freely inside the movable frame, with the bottom of the ball in contact with the surface of the gear reducer assembly table.

[0010] Preferably, the auxiliary mechanism includes a cylindrical frame, a set of cylindrical frames symmetrically fixed to the top of the limiting frame, a pull rod passing through the inside of the set of cylindrical frames, a set of limiting ring plates symmetrically fixedly sleeved on the surface of the pull rod, and a spring provided above the limiting ring plates.

[0011] Preferably, the support plate has a groove on its surface that matches the bottom end of the pull rod, the pull rod is inverted U-shaped, and the pull rod passes through the top of the limiting frame and engages with the inside of the support plate.

[0012] Preferably, the pull rod is formed into an elastic structure by a limiting ring plate, a spring, and a cylindrical frame, and the outer wall of the limiting ring plate is in contact with the inner wall of the cylindrical frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The motor effectively drives the gear to rotate, thereby causing a set of gear racks meshing on the front and rear sides of the gear surface to move closer to each other. This facilitates the simultaneous approach of a set of positioning arc plates to the planetary carrier. Then, the electric push rod effectively drives the limit frame, support plate, and positioning arc plates to move upward. When the inner wall of the bottom side of the positioning arc plate is in contact with the side of the planetary carrier, the electric push rod drives the limit frame, support plate, and positioning arc plates to move downward, so that the inner wall of the horizontal positioning arc plate is in contact with the partial top surface of the planetary carrier. This achieves simultaneous horizontal and vertical limiting of the planetary carrier, improving the positioning effect. The setting of several ball bearings can effectively reduce the friction between the movable frame and the surface of the gear reducer assembly table, assisting the movable frame to slide smoothly.

[0014] 2. By pulling the lever upwards, the bottom end of the lever is effectively disengaged from the inside of the support plate. At this time, there are no restrictive objects between the support plate and the limiting frame, making it easy for the support plate and positioning arc plate to be directly removed from the limiting frame for replacement, thus improving disassembly efficiency. When installing the replaced positioning arc plate, the support plate is inserted into the limiting frame while the lever is pulled upwards. Then, the lever is released. Due to the spring rebound force, the bottom end of the lever quickly pops out and effectively engages with the inside of the support plate, achieving rapid limiting and fixing of the replaced positioning arc plate. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0016] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the gear reducer assembly table of this utility model; Figure 3 This is a schematic diagram of the internal structure of the gear reducer assembly table from another perspective of this utility model; Figure 4 This is a partial cross-sectional structural diagram of the present invention.

[0017] In the diagram: 1. Gear reducer assembly table; 2. Positioning mechanism; 201. Bracket; 202. Motor; 203. Gear; 204. Rack; 205. Movable frame; 206. Limiting frame; 207. Support plate; 208. Positioning arc plate; 209. Electric push rod; 210. Ball bearing; 3. Auxiliary mechanism; 301. Cylindrical frame; 302. Tie rod; 303. Limiting ring plate; 304. Spring. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-4 A parts placement and positioning frame for assembling a gear reducer includes a gear reducer assembly table 1. A positioning mechanism 2 is provided on the surface of the gear reducer assembly table 1. A set of auxiliary mechanisms 3 are symmetrically arranged on the surface of the positioning mechanism 2. The positioning mechanism 2 includes a bracket 201, which is fixed to the bottom center of the gear reducer assembly table 1. A motor 202 is installed inside the bracket 201. A gear 203 is connected to the movable end of the motor 202. A set of racks 204 meshes with the front and rear sides of the surface of the gear 203. A movable frame 205 is fixedly connected to the top of the racks 204. The set of racks 204... 4. A set of movable frames 205 are centrally symmetrical about the center point of gear 203. The top of the movable frame 205 is attached to a limiting frame 206, and a support plate 207 is engaged inside the limiting frame 206. A positioning arc plate 208 is fixed to one side of the support plate 207. Furthermore, the limiting frame 206 and the movable frame 205 form a lifting structure through an electric push rod 209. The positioning arc plate 208 and the limiting frame 206 form an engaging structure through the support plate 207. The inner diameter of the top of the positioning arc plate 208 is smaller than the inner diameter of the bottom. A set of electric push rods 209 are symmetrically fitted inside the movable frame 205. The bottom of the movable frame 205 is evenly fitted with several ball bearings 210. Furthermore, two-thirds of the ball bearings 210 are engaged inside the movable frame 205, allowing them to rotate freely within the frame. The bottom of the ball bearings 210 is in contact with the surface of the gear reducer assembly table 1. The motor 202 effectively drives the gear 203 to rotate, thereby causing a set of meshing racks 204 on the front and rear sides of the gear 203 to move closer together. This facilitates the simultaneous approach of a set of positioning arc plates 208 to the planetary carrier. Then, the electric push rod 209 effectively drives the limiting... The positioning frame 206, support plate 207, and positioning arc plate 208 move upward. When the inner wall of the bottom side of the positioning arc plate 208 is in contact with the side of the planetary carrier, the electric push rod 209 drives the limiting frame 206, support plate 207, and positioning arc plate 208 to move downward, so that the inner wall of the horizontal direction of the positioning arc plate 208 is in contact with the partial top surface of the planetary carrier, thereby achieving simultaneous horizontal and vertical limiting of the planetary carrier and improving the positioning effect. The setting of several balls 210 can effectively reduce the friction between the movable frame 205 and the surface of the gear reducer assembly table 1, and assist the movable frame 205 to slide smoothly.

[0020] Auxiliary mechanism 3 includes a cylindrical frame 301. A set of cylindrical frames 301 are symmetrically fixed to the top of the limiting frame 206. A tie rod 302 passes through the inside of the set of cylindrical frames 301. The surface of the support plate 207 has a groove that matches the bottom end of the tie rod 302. The tie rod 302 is inverted U-shaped. After passing through the top of the limiting frame 206, the tie rod 302 is engaged with the inner side of the support plate 207. A set of limiting ring plates 303 are symmetrically fixedly sleeved on the surface of the tie rod 302. A spring 304 is provided above the limiting ring plates 303. Furthermore, the tie rod 302 and the cylindrical frame 301 form an elastic structure through the limiting ring plates 303, the spring 304, and the outer wall of the limiting ring plates 303 and the cylindrical frame 301 are connected. 1. The inner walls are in contact. By pulling the pull rod 302 upward, the bottom end of the pull rod 302 is effectively disengaged from the inner side of the support plate 207. At this time, there is no restraint between the support plate 207 and the limiting frame 206, which makes it easy for the support plate 207 and the positioning arc plate 208 to be directly pulled out of the limiting frame 206 for replacement, improving disassembly efficiency. When installing the replaced positioning arc plate 208, the support plate 207 is inserted into the limiting frame 206 on the basis of pulling the pull rod 302 upward. Then, the pull rod 302 is released. Under the influence of the spring 304, the bottom end of the pull rod 302 quickly pops out and effectively engages with the inner side of the support plate 207, realizing the quick limiting and fixing of the replaced positioning arc plate 208.

Claims

1. A parts placement and positioning frame for assembling a gear reducer, characterized in that: The assembly includes a gear reducer assembly table (1), on which a positioning mechanism (2) is provided. A set of auxiliary mechanisms (3) are symmetrically arranged on the surface of the positioning mechanism (2). The positioning mechanism (2) includes a bracket (201), which is fixed to the bottom center of the gear reducer assembly table (1). A motor (202) is provided inside the bracket (201), and a gear (203) is connected to the movable end of the motor (202). The surface of the gear (203)... A set of racks (204) meshes with the front and rear sides. A movable frame (205) is fixedly connected to the top of the racks (204). A limit frame (206) is attached to the top of the movable frame (205). A support plate (207) is engaged inside the limit frame (206). A positioning arc plate (208) is fixedly connected to one side of the support plate (207). A set of electric push rods (209) are symmetrically fitted inside the movable frame (205). Several balls (210) are evenly engaged at the bottom of the movable frame (205).

2. The parts placement and positioning frame for assembling a gear reducer according to claim 1, characterized in that: Both the rack (204) and the movable frame (205) are centrally symmetrical about the center point of the gear (203).

3. The parts placement and positioning frame for assembling a gear reducer according to claim 1, characterized in that: The limiting frame (206) forms a lifting structure with the movable frame (205) via an electric push rod (209), and the positioning arc plate (208) forms a locking structure with the limiting frame (206) via a support plate (207). The inner diameter of the top of the positioning arc plate (208) is smaller than the inner diameter of the bottom.

4. The parts placement and positioning frame for assembling a gear reducer according to claim 1, characterized in that: Two-thirds of the ball (210) is engaged inside the movable frame (205), and the ball (210) can rotate and roll freely inside the movable frame (205). The bottom of the ball (210) is in contact with the surface of the gear reducer assembly table (1).

5. A parts placement and positioning frame for assembling a gear reducer according to claim 1, characterized in that: The auxiliary mechanism (3) includes a cylindrical frame (301), a set of cylindrical frames (301) are symmetrically fixed on the top of the limiting frame (206), a pull rod (302) runs through the inside of the set of cylindrical frames (301), a set of limiting ring plates (303) are symmetrically fixed on the surface of the pull rod (302), and a spring (304) is provided above the limiting ring plate (303).

6. A parts placement and positioning frame for assembling a gear reducer according to claim 5, characterized in that: The support plate (207) has a slot on its surface that matches the bottom end of the pull rod (302). The pull rod (302) is inverted U-shaped. After passing through the top of the limiting frame (206), the pull rod (302) is engaged with the inside of the support plate (207).

7. A parts placement and positioning frame for assembling a gear reducer according to claim 5, characterized in that: The pull rod (302) forms an elastic structure with the cylinder frame (301) through the limiting ring plate (303), the spring (304), and the outer wall of the limiting ring plate (303) is in contact with the inner wall of the cylinder frame (301).

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