A planetary gear reducer positioning and machining fixture

Abstract

This utility model relates to the field of gear processing technology, specifically disclosing a positioning and processing fixture for planetary reducer gears. It includes a worktable with an auxiliary mechanism on its end face. The auxiliary mechanism includes a vertical plate fixedly connected to the end face of the worktable. A rotating rod is rotatably connected to the surface of the vertical plate, and a fixed frame is fixedly connected to one end of the rotating rod. A limit groove is formed on the surface of the fixed frame, and two L-shaped plates are slidably connected to the inner wall of the limit groove. A motor is fixedly connected to one side of the fixed frame, and a screw is fixedly connected to the output end of the motor. This utility model, through the screw and its threaded drive, enables the two L-shaped plates to move closer together to securely clamp the workpiece. The rotation of the rotating rod allows for rapid flipping of the workpiece, minimizing the need for workers to disassemble the workpiece before flipping it, thus improving the processing speed to a certain extent.

Description

Technical Field

[0001] This utility model belongs to the field of gear processing technology, specifically relating to a positioning and processing fixture for planetary reducer gears. Background Technology

[0002] A planetary gear reducer is a mechanical device with high-efficiency transmission capability. Its core structure is based on the planetary gear transmission principle, which can achieve high speed ratio and high torque power transmission in a compact space. It is usually composed of a sun gear, planet gears, planet carrier and gear ring.

[0003] When processing gears in planetary reducers, it is usually necessary to grind both the top and bottom sides of the gears to ensure their flatness. During grinding, the gears are usually secured with a clamp. However, with existing clamps, after grinding one side of the gear, the operator needs to disassemble the gear, flip it over, and then clamp it again to grind the other side, which is a rather cumbersome operation. Utility Model Content

[0004] The purpose of this utility model is to provide a positioning and machining fixture for planetary reducer gears, so as to solve the problem that existing fixtures are not convenient for adjusting gears.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A planetary gear reducer positioning and machining fixture includes a worktable. An auxiliary mechanism is provided on the end face of the worktable. The auxiliary mechanism includes a vertical plate fixedly connected to the end face of the worktable. A rotating rod is rotatably connected to the surface of the vertical plate. A fixed frame is fixedly connected to one end of the rotating rod. A limit groove is formed on the surface of the fixed frame. Two L-shaped plates are slidably connected to the inner wall of the limit groove. A motor is fixedly connected to one side of the fixed frame. A screw is fixedly connected to the output end of the motor. Both L-shaped plates are threaded onto the arc surface of the screw.

[0007] Preferably, the fixing frame has recessed holes on both sides, and the screw passes through the fixing frame through the two recessed holes.

[0008] Preferably, the arc surface of the screw is provided with opposite threads at both ends from the middle to both ends, and the two L-shaped plates are symmetrically distributed about the vertical central axis of the screw.

[0009] Preferably, the end face of the workbench is provided with a groove, a support column is slidably connected to the inner wall of the groove, a spring is fixedly connected to the bottom end of the support column, the end of the spring away from the support column is fixedly connected to the inner wall of the groove, and a support plate is fixedly connected to the top end of the support column.

[0010] Preferably, the end face of the workbench is fixedly connected to a fixing tube, the inner wall of the fixing tube is slidably connected to an insertion rod, the arc surface of the support column is provided with an insertion hole, and the insertion rod is slidably inserted into the insertion hole.

[0011] Preferably, a transmission gear is fixedly connected to the arc surface of the rotating rod, a rack is provided below the transmission gear, a connecting rod is fixedly connected to the bottom surface of the rack, and the end of the connecting rod away from the rack is fixedly connected to the insert rod.

[0012] Preferably, the number of teeth on the tooth surface of the transmission gear is incomplete.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model uses a screw to drive two L-shaped plates to move closer to each other and clamp the workpiece securely. By rotating the rotating rod, the workpiece can be quickly flipped, minimizing the need for workers to disassemble the workpiece before flipping it, thus improving the processing speed of the workpiece to a certain extent.

[0015] 2. This utility model uses a support plate to support the workpiece and improve its stability during workpiece processing. With the engagement of the insert rod and the insertion hole, the position of the support plate can be stabilized during workpiece processing. With the help of the transmission gear and rack, the insert rod and the insertion hole can be automatically disengaged when the workpiece is flipped, so that the support plate can move downwards to facilitate the smooth flipping of the workpiece. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a cross-sectional structural diagram of the workbench of this utility model;

[0018] Figure 3 This is a schematic diagram showing the disassembled structure of the fixing frame and screw of this utility model;

[0019] Figure 4 This is a partial structural schematic diagram of the auxiliary mechanism of this utility model.

[0020] In the diagram: 1. Workbench; 2. Auxiliary mechanism; 201. Vertical plate; 202. Rotating rod; 203. Fixing frame; 2031. Recessed hole; 204. Limiting groove; 205. L-shaped plate; 206. Motor; 207. Screw; 208. Support column; 209. Support plate; 210. Spring; 211. Fixing tube; 212. Insert rod; 213. Insertion hole; 214. Transmission gear; 215. Rack; 216. Connecting rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Reference Figures 1-4 As shown, this utility model provides a planetary reducer gear positioning and machining fixture, including a worktable 1. An auxiliary mechanism 2 is provided on the end face of the worktable 1. The auxiliary mechanism 2 includes a vertical plate 201 fixedly connected to the end face of the worktable 1. A rotating rod 202 is rotatably connected to the surface of the vertical plate 201. A fixed frame 203 is fixedly connected to one end of the rotating rod 202. A limiting groove 204 is opened on the surface of the fixed frame 203. Two L-shaped plates 205 are slidably connected to the inner wall of the limiting groove 204. A motor 206 is fixedly connected to one side of the fixed frame 203. A screw 207 is fixedly connected to the output end of the motor 206. Both L-shaped plates 205 are threadedly connected to the arc surface of the screw 207.

[0023] In this embodiment, recessed holes 2031 are provided on both sides of the fixing frame 203. The screw 207 passes through the fixing frame 203 via the two recessed holes 2031. The arc surface of the screw 207 is provided with threads with opposite threads at both ends from the middle to both ends. The two L-shaped plates 205 are symmetrically distributed about the vertical central axis of the screw 207. When the screw 207 rotates, the two L-shaped plates 205 move towards each other or away from each other.

[0024] In an optional embodiment: a groove is provided on the end face of the workbench 1, a support column 208 is slidably connected to the inner wall of the groove, a spring 210 is fixedly connected to the bottom end of the support column 208, the end of the spring 210 away from the support column 208 is fixedly connected to the inner wall of the groove, and a support plate 209 is fixedly connected to the top end of the support column 208.

[0025] It should be noted that the spring 210 serves to facilitate the rebound of the support plate 209 caused by the support column 208.

[0026] In an optional embodiment: a fixed tube 211 is fixedly connected to the end face of the workbench 1, and a plug rod 212 is slidably connected to the inner wall of the fixed tube 211. An insertion hole 213 is opened on the arc surface of the support column 208, and the plug rod 212 is slidably inserted into the inside of the insertion hole 213.

[0027] In this embodiment, the position of the support plate 209 is stabilized by inserting the insertion rod 212 into the insertion hole 213, and the workpiece is stabilized by the support plate 209.

[0028] A transmission gear 214 is fixedly connected to the arc surface of the rotating rod 202. A rack 215 is provided below the transmission gear 214. A connecting rod 216 is fixedly connected to the bottom surface of the rack 215. The end of the connecting rod 216 away from the rack 215 is fixedly connected to the insert rod 212.

[0029] It should be noted that the size of the insertion hole 213 is larger than the size of the insertion rod 212. The insertion hole 213 needs to have a certain amount of space inside so that when the rotating rod 202 rotates, it can rotate first, so that the transmission gear 214 and the rack 215 can be driven, and the insertion rod 212 can disengage from the insertion hole 213. The distance from the insertion rod 212 to the insertion hole 213 is relatively short so that when the rotating rod 202 rotates, the insertion rod 212 will quickly disengage from the insertion hole 213.

[0030] In an optional embodiment: the number of teeth on the tooth surface of the transmission gear 214 is incomplete, the teeth on the tooth surface of the transmission gear 214 are intermittently arranged and symmetrically distributed, and the toothless areas are also symmetrically distributed. Since the workpiece is rotated by 180 degrees, the rotating rod 202 drives the transmission gear 214 to rotate and it corresponds exactly to the original position.

[0031] It should be noted that when the transmission gear 214 and the rack 215 are not meshed, it is convenient to move the rack 215 to its original position, that is, it is convenient to re-insert the insertion rod 212 into the insertion hole 213.

[0032] The working principle of this utility model is as follows: In use, the operator inserts the insertion rod 212 into the insertion hole 213 to stabilize the position of the support plate 209. Then, the workpiece is placed in the center of the support plate 209. The motor 206 is started, driving the screw 207 to rotate. Driven by the screw thread, the two L-shaped plates 205 move closer to each other until they clamp the workpiece securely. The operator can then perform surface grinding on the workpiece. When grinding is required on the other side of the workpiece, the rotating rod 202 is directly rotated, causing the rotating rod 202 to... When the drive gear 214 rotates, it drives the rack 215. With the connection of the connecting rod 216, the insertion rod 212 moves and disengages from the insertion hole 213. At this time, the support plate 209 loses its support and moves downward under the pressure of the fixing frame 203 and the workpiece. The support column 208 moves downward and presses against the spring 210, compressing the spring 210 until the workpiece is completely flipped. With the help of the elastic force of the spring 210, the support plate 209 moves back up. Then, the insertion rod 212 is reinserted into the insertion hole 213 to stabilize the position of the support plate 209.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, whether directly or indirectly applied to other related technical fields, are similarly within the scope of protection of this utility model patent.

Claims

1. A positioning and machining fixture for planetary reducer gears, comprising a worktable (1), characterized in that, The end face of the workbench (1) is provided with an auxiliary mechanism (2). The auxiliary mechanism (2) includes a vertical plate (201) fixedly connected to the end face of the workbench (1). A rotating rod (202) is rotatably connected to the surface of the vertical plate (201). A fixed frame (203) is fixedly connected to one end of the rotating rod (202). A limiting groove (204) is opened on the surface of the fixed frame (203). Two L-shaped plates (205) are slidably connected to the inner wall of the limiting groove (204). A motor (206) is fixedly connected to one side of the fixed frame (203). A screw (207) is fixedly connected to the output end of the motor (206). Both L-shaped plates (205) are threadedly connected to the arc surface of the screw (207).

2. The planetary reducer gear positioning and machining fixture according to claim 1, characterized in that: The fixing frame (203) has recessed holes (2031) on both sides, and the screw (207) passes through the fixing frame (203) through the two recessed holes (2031).

3. The planetary reducer gear positioning and machining fixture according to claim 1, characterized in that: The arc surface of the screw (207) is provided with opposite threads at both ends from the middle to both ends, and the two L-shaped plates (205) are symmetrically distributed about the vertical central axis of the screw (207).

4. The planetary reducer gear positioning and machining fixture according to claim 1, characterized in that: The workbench (1) has a groove on its end face. A support column (208) is slidably connected to the inner wall of the groove. A spring (210) is fixedly connected to the bottom end of the support column (208). The end of the spring (210) away from the support column (208) is fixedly connected to the inner wall of the groove. A support plate (209) is fixedly connected to the top end of the support column (208).

5. The planetary reducer gear positioning and machining fixture according to claim 4, characterized in that: The end face of the workbench (1) is fixedly connected to a fixed tube (211), and the inner wall of the fixed tube (211) is slidably connected to a plug rod (212). The arc surface of the support column (208) is provided with a plug hole (213), and the plug rod (212) is slidably inserted into the plug hole (213).

6. The planetary reducer gear positioning and machining fixture according to claim 1, characterized in that: A transmission gear (214) is fixedly connected to the arc surface of the rotating rod (202). A rack (215) is provided below the transmission gear (214). A connecting rod (216) is fixedly connected to the bottom surface of the rack (215). The end of the connecting rod (216) away from the rack (215) is fixedly connected to the insert rod (212).

7. A planetary reducer gear positioning and machining fixture according to claim 6, characterized in that: The number of teeth on the tooth surface of the transmission gear (214) is incomplete.

Images