Micro speed reducer output shaft machining fixing device

By designing a combined structure of fixed limit block, moving limit block and rotary locking screw, the problem of unreliable fixing in the machining of micro reducer output shaft was solved, realizing precise cutting and safe fixing of meshing toothed parts, and improving machining efficiency and safety.

CN223960909UActive Publication Date: 2026-03-03KERUICHANG TECH (SUZHOU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-09
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

In the machining process of the output shaft of a micro reducer, existing technologies make it difficult to reliably fix the input/output shaft blanks, resulting in inaccurate and unsafe cutting of the meshing toothed parts.

Method used

A machining and fixing device for the output shaft of a micro reducer was designed. It adopts a combination structure of fixed limit block and moving limit block. The input/output shaft is stably clamped and fixed by rotating the locking screw and locking nut. Multi-directional limiting is achieved by vertical rectangular slide groove and slider. Combined with the assembly design of the box base and fixed ear plate, the fixing device can be easily disassembled and replaced.

Benefits of technology

It enables quick and reliable fixing of the input/output shaft, ensuring precise cutting and forming of the meshing toothed parts. The device structure is easy to assemble and disassemble and replace after long-term use, improving the safety and efficiency of processing.

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Abstract

The utility model belongs to the technical field of application of miniature speed reducers, and particularly discloses a fixing device for machining an output shaft of a miniature speed reducer. Comprising a box pedestal, a transverse supporting table, a fixed limiting block, a fixed limiting block shaft groove, an n-shaped frame, an n-shaped frame screw hole, a rotary locking screw rod, a locking nut, a polygonal rotating block, a movable limiting block, a movable limiting block shaft groove, a circular convex block, a circular convex block groove and the like. The fixing device for processing the output shaft of the miniature speed reducer has the beneficial effects that 1, the fixing device is suitable for quickly and firmly locking and fixing a blank of an input shaft / output shaft, and precise and safe cutting forming of a meshed tooth-shaped part is completed; and 2, the whole body adopts a multi-part assembly type structural design, is convenient to assemble and use or disassemble and replace after long-term use, and is practical and convenient to popularize.
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Description

Technical Field

[0001] This utility model belongs to the field of micro speed reducer application technology, specifically relating to a micro speed reducer output shaft machining and fixing device. Background Technology

[0002] Miniature speed reducers have the following characteristics: high durability, with gears made of high-strength alloy steel and housing made of high-strength die-cast aluminum alloy, making them lightweight and durable; high efficiency, with higher transmission efficiency than traditional bevel gear and worm gear reducers at the same speed ratio; high input speed, with a maximum input speed of up to 10,000 rpm; low noise, with a compact design and precision manufacturing, resulting in noise levels below 65 dB(A); maintenance-free, with a compact overall design and grease lubrication, requiring no maintenance for its entire lifespan; insulation class F, with a temperature resistance of 155℃.

[0003] Miniature speed reducers are mainly used in conveying machinery, packaging machinery, food machinery, textile machinery, office machinery, printing machinery, electronic instruments, medical equipment, chemical instruments, pollution control machinery, sports machinery, special professional machinery, wire and cable, and financial fields. They are ideal supporting products for automation equipment in various industries.

[0004] The miniature reducer mainly consists of a housing, ring gear, front cover, input shaft, sleeve end, rear bearing, inner ring, outer ring, front bearing, rear cover fixing part, and output shaft.

[0005] During the machining of components using cutting equipment, the corresponding components need to be fixed in order to complete the machining process accurately and safely. For example, the meshing toothed parts on the surface of the input / output shaft need to be securely and stably fixed to the blank shaft during cutting.

[0006] Therefore, based on the above problems, this utility model provides a machining and fixing device for the output shaft of a micro reducer. Utility Model Content

[0007] Purpose of the utility model: The purpose of this utility model is to provide a machining and fixing device for the output shaft of a micro reducer, which is suitable for use with cutting equipment to securely and stably fix the blank shaft of the cutting equipment in pre-processing operations, so as to achieve safe and high-quality meshing gear cutting and forming processing.

[0008] Technical Solution: The micro reducer output shaft machining and fixing device provided by this utility model includes a housing base located on one side of the cutting equipment. A horizontal support platform is provided on one end face of the housing base along its symmetrical center line. A positioning block is provided on the end face of the horizontal support platform along its symmetrical center line. A positioning block shaft groove is provided on one side of the positioning block along its symmetrical center line. An n-shaped frame is provided on both end faces of the horizontal support platform, and an n-shaped frame screw hole is provided on the outer layer of the positioning block. A rotary locking screw is installed, and a locking nut is provided on the rotary locking screw. One end face of the rotary locking screw is provided with a polygonal rotating block. The other end of the rotary locking screw, located in the screw hole of the n-shaped frame, is provided with a movable limiting block that cooperates with the fixed limiting block. The movable limiting block has a movable limiting block shaft groove that matches the shaft groove of the fixed limiting block on one side of its symmetrical center line. The other end face of the movable limiting block is provided with a circular protrusion. The circular protrusion has a circular protrusion groove that cooperates with the rotary locking screw on one side.

[0009] The micro reducer output shaft machining and fixing device of this technical solution further includes vertical rectangular slide grooves symmetrically arranged on opposite sides of the n-shaped frame, and vertical rectangular sliders arranged on the outer walls of both ends of the moving limit block and matching the vertical rectangular slide grooves.

[0010] The micro reducer output shaft machining and fixing device of this technical solution further includes two sets of box base screw grooves symmetrically arranged in one end face of the box base center line, and fixing ear plates arranged on the outer walls of both sides of the horizontal support platform, and fixing ear plate countersunk screw grooves respectively arranged in the end faces of both ends of the fixing ear plates, and bolts for fixing the fixing ear plates and the box base through the fixing ear plate countersunk screw grooves and the box base screw grooves.

[0011] In this technical solution, the fixed limiting block and the moving limiting block are respectively set as rectangular plate structures of the same size; the shaft groove of the fixed limiting block and the shaft groove of the moving limiting block are respectively set as semi-circular structures of the same size.

[0012] Compared with the prior art, the advantages of the micro reducer output shaft machining and fixing device of this utility model are as follows: 1. It is suitable for quickly and reliably locking and fixing the blanks of the input shaft / output shaft, and completing the precise and safe cutting and forming of the meshing toothed part; 2. The whole is a multi-part assembly structure design, which is convenient for assembly and use or disassembly and replacement after long-term use, and is practical and easy to promote. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the main structure of the micro reducer output shaft machining and fixing device of this utility model;

[0015] Figure 2 This is a top view of the structure of the micro reducer output shaft machining and fixing device of this utility model;

[0016] Figure 3 This is a front view schematic diagram of the micro reducer output shaft machining and fixing device of this utility model, which includes an added vertical rectangular groove and a vertical rectangular slider.

[0017] Figure 4 yes Figure 3 A top-view structural diagram;

[0018] The numbers in the diagram are as follows: 100-box base, 101-box base screw groove, 102-fixed ear plate, 103-fixed ear plate countersunk screw groove, 104-bolt, 105-horizontal support platform, 106-fixed limit block, 107-fixed limit block shaft groove, 108-n-shaped frame, 109-n-shaped frame screw hole, 110-rotary locking screw, 111-locking nut, 112-polygonal rotating block, 113-moving limit block, 114-moving limit block shaft groove, 115-circular protrusion, 116-circular protrusion groove, 117-vertical rectangular slide groove, 118-vertical rectangular slider. Detailed Implementation

[0019] 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.

[0020] In the description of this utility model, it should be noted that the terms "top," "bottom," "one side," "the other side," "front," "back," "middle part," "inner," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] Example 1

[0022] like Figure 1 and Figure 2 The micro reducer output shaft machining and fixing device shown includes a housing 100 located on one side of the cutting equipment.

[0023] A horizontal support platform 105 is provided on one end face of the symmetrical center line of the box base 100.

[0024] A positioning block 106 is provided on the end face of the symmetrical center line of the horizontal support platform 105.

[0025] A positioning block shaft groove 107 is provided on one side of the center line of the positioning block 106.

[0026] An n-shaped frame 108 is provided on both end faces of the horizontal support platform 105, and on the outer layer of the positioning block 106.

[0027] An n-shaped frame screw hole 109 is provided within the center line of symmetry of the n-shaped frame 108.

[0028] A rotary locking screw 110 is installed on the n-shaped frame 108 through the n-shaped frame screw hole 109.

[0029] A locking nut 111 is provided on the rotary locking screw 110.

[0030] A polygonal rotating block 112 is provided on one end face of the rotary locking screw 110.

[0031] The other end of the rotary locking screw 110, located within the n-shaped frame screw hole 109, is provided with a movable limiting block 113 that cooperates with the fixed limiting block 106.

[0032] The movable limiting block 113 has a movable limiting block shaft groove 114 that matches the fixed limiting block shaft groove 107 on one side of its symmetrical center line.

[0033] A circular protrusion 115 is provided on the other end face of the movable limit block 113.

[0034] A circular protrusion groove 116 is provided on one side of the circular protrusion 115 to cooperate with the rotating locking screw 110.

[0035] The working principle is as follows:

[0036] (1) Place one end of the blank of the input shaft / output shaft horizontally in the shaft groove 107 of the positioning block;

[0037] (2) Horizontally mount the moving limit block shaft groove 114 on one side of the moving limit block 113 onto the moving limit block 113. At this time, one end of the blank of the input shaft / output shaft is located between the moving limit block shaft groove 114 and the fixed limit block shaft groove 107.

[0038] (3) Using a wrench or similar tool, rotate the locking screw 110 by rotating the polygonal rotating block 112 until one end of the locking screw 110 is inserted into the circular protrusion groove 116. Continue to rotate the locking screw 110 to press the moving limit block 113 downward. Then, tighten the locking nut 111 to lock the locking screw 110. At this time, the fixed limit block shaft groove 107 and the moving limit block shaft groove 114 on the opposite side of the moving limit block 113 and the fixed limit block 106 complete the clamping and fixing of one end of the input shaft / output shaft blank (the diameter of one end of the input shaft / output shaft blank is larger than the diameter of the circular cavity formed by the fixed limit block shaft groove 107 and the moving limit block shaft groove 114).

[0039] Example 2

[0040] Based on Example 1, such as Figure 3 and Figure 4 The micro reducer output shaft machining and fixing device shown also includes vertical rectangular slide grooves 117 symmetrically arranged on opposite sides of the n-shaped frame 108, and vertical rectangular sliders 118 (the vertical rectangular slide grooves 117 are coated with solid lubricant) arranged on the outer walls of both ends of the moving limit block 113 and matched with the vertical rectangular slide grooves 117.

[0041] The vertical rectangular slider 118 is inserted into the vertical rectangular slide groove 117 and moves vertically in the vertical rectangular slide groove 117 along with the moving limit block 113. This can limit the vertical movement of the moving limit block 113 and also limit the horizontal movement of the locked moving limit block 113.

[0042] Example 3

[0043] Based on Embodiment 1 or Embodiment 2, the micro reducer output shaft machining and fixing device further includes two sets of housing base screw grooves 101 symmetrically arranged in one end face of the housing base 100's symmetrical center line, and fixing ear plates 102 arranged on the outer walls of both sides of the horizontal support platform 105, fixing ear plate countersunk screw grooves 103 respectively arranged in the end faces of the fixing ear plates 102, and bolts 104 that fix the fixing ear plates 102 and the housing base 100 through the fixing ear plate countersunk screw grooves 103 and the housing base screw grooves 101; wherein, the connection surface of the horizontal support platform 105 and the fixing ear plates 102 is set as a stepped structure.

[0044] The above design structure facilitates the quick assembly or disassembly of the fixed ear plate 102 and the box base 100, making them practical.

[0045] In addition, preferably, the fixed limiting block 106 and the movable limiting block 113 are respectively set as rectangular plate structures of the same size; the fixed limiting block shaft groove 107 and the movable limiting block shaft groove 114 are respectively set as semi-circular structures of the same size.

[0046] The above design structure can fully surround and cover one end of the input / output shaft blank for locking and fixing, ensuring the reliability and stability of the locking and fixing.

[0047] It should be noted that, in this document, terms such as "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 a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0048] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A micro-reducer output shaft machining fixing device, comprising a box seat (100) located on one side of a cutting device, characterized in that: an end face of the symmetric center line of the box seat (100) is provided with a horizontal support table (105); an end face of the symmetric center line of the horizontal support table (105) is provided with a fixed limiting block (106); one side of the symmetric center line of the fixed limiting block (106) is provided with a fixed limiting block shaft groove (107); both sides of the end face of the horizontal support table (105) and outside the fixed limiting block (106) are provided with an n-shaped frame (108); the symmetric center line of the n-shaped frame (108) is provided with an n-shaped frame screw hole (109); the n-shaped frame (108) is provided with a rotating locking screw (110) through the n-shaped frame screw hole (109); the rotating locking screw (110) is provided with a locking nut (111); one end of the rotating locking screw (110) is provided with a multi-angle rotating block (112); the other end of the rotating locking screw (110) and inside the n-shaped frame screw hole (109) are provided with a movable limiting block (113) matched with the fixed limiting block (106); one side of the symmetric center line of the movable limiting block (113) is provided with a movable limiting block shaft groove (114) matched with the fixed limiting block shaft groove (107); the other side of the movable limiting block (113) is provided with a circular protrusion (115); one side of the circular protrusion (115) is provided with a circular protrusion groove (116) matched with the rotating locking screw (110); the fixed limiting block (106) and the movable limiting block (113) are respectively provided in the form of a rectangular plate with the same size; the fixed limiting block shaft groove (107) and the movable limiting block shaft groove (114) are respectively provided in the form of a semicircle with the same size. The micro-reducer output shaft machining fixing device further comprises vertical rectangular sliding grooves (117) symmetrically arranged in opposite sides of the n-shaped frame (108), and vertical rectangular sliding blocks (118) arranged on the outer walls of both ends of the movable limiting block (113) and matched with the vertical rectangular sliding grooves (117). The micro-reducer output shaft machining fixing device further comprises two groups of box seat screw grooves (101) symmetrically arranged in an end face of the symmetric center line of the box seat (100), fixed ear plates (102) arranged on the outer walls of both sides of the horizontal support table (105), fixed ear plate countersunk screw grooves (103) respectively arranged in end faces of both ends of the fixed ear plates (102), and bolts (104) for fixing the fixed ear plates (102) and the box seat (100) through the fixed ear plate countersunk screw grooves (103) and the box seat screw grooves (101). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2. The micro-reducer output shaft machining fixture according to claim 1, wherein: ​ 3. The micro-reducer output shaft machining fixing device according to claim 1 or 2, characterized in that: ​