CN221473761U - Processing device for irregular end teeth - Google Patents

Abstract

The utility model provides a processing device for irregular end teeth, which comprises a mounting base, a floating positioning seat and a positioning body, wherein an annular boss is arranged at the top end of the mounting base, the floating positioning seat is positioned at the top end of the mounting base, a second step hole matched with the annular boss is formed in the bottom end of the floating positioning seat, a fixed shaft is sleeved at the top end of the second step hole, the positioning body is positioned at the top end of the floating positioning seat, a first step hole is formed in the bottom end of the positioning body, a tapered roller bearing is sleeved in the first step hole, and the tapered roller bearing is sleeved on the fixed shaft. According to the utility model, radial irregular end teeth with inclined angles can be processed by using the triaxial numerical control milling machine, and meanwhile, after the hexagonal nut is unscrewed, the steel ball can be extruded by the cylindrical spiral spring, so that the positioning body can be arbitrarily rotated and fixed, and the condition that the hexagonal nut needs to be disassembled for adjusting the part to be processed is avoided.

Description

Processing device for irregular end teeth

Technical Field

The utility model relates to the technical field of end tooth processing equipment, in particular to a processing device for irregular end teeth.

Background

The differential mechanism is a mechanism capable of rotating left and right (or front and rear) wheels at different rotation speeds and is mainly used for adjusting the rotation speed difference of the left and right wheels. When the automobile turns or runs on uneven road, the differential mechanism allows the left wheel and the right wheel to rotate at different rotation speeds, so that the stability and the operability of the automobile are ensured. The triple gear is an important component in the differential and consists of three gears, including a driving gear, a driven gear and an output gear. The three gears work cooperatively to realize power transmission and distribution, and the driving gear receives the power of the engine and transmits the power to the differential mechanism through the transmission shaft. The planetary gear mechanism in the differential distributes power to the driven gear and the output gear, thereby driving the wheels to rotate. The differential and the triple gear play an important role in the overall automotive powertrain. The differential mechanism is used for balancing the rotation speed difference of wheels at two sides and ensuring the stability and the operability of the vehicle under different road conditions. And the triple gear is used as an important component of the differential mechanism, and the power of the engine is effectively transmitted to wheels through precise gear matching and transmission to push the vehicle to advance. The existing driving gear of the differential mechanism is in the shape that an outer cylindrical surface is provided with helical teeth, one end of the driving gear is connected with a special part with straight teeth and helical teeth, the other end of the driving gear is provided with irregular end teeth, the irregular end teeth can be in the shape of trapezoids, rectangles, circular arcs and the like, the bottom surfaces of the end teeth are perpendicular to the central line of the part or are not perpendicular to the central line, the radial directions of the bottom surfaces of the end teeth are radial, and the bottom surfaces of the end teeth are perpendicular to the side surfaces of the end teeth and are in various shapes which are inwards or outwards inclined relative to the central line.

The current processing of differential drive gears also has the following problems:

The radial end teeth of the driving gear can be machined by using a triaxial numerical control milling machine along the radial direction, and the inclined inward or outward irregular end teeth are difficult to machine by using the triaxial numerical control milling machine due to the inclined angle, after one tooth of the end teeth of the driving gear is machined, a workpiece needs to be frequently disassembled, the workpiece is rotationally fixed, the next tooth can be machined, the working efficiency is low, and the machining is very complicated, although the workpiece can be machined by using a five-axis machine tool with higher degree of freedom, the production cost is increased undoubtedly, and the production and the machining are not facilitated.

Based on the above situation, there is an urgent need to design an irregular end tooth machining device for a tri-axial numerically controlled milling machine to solve the above-mentioned problems.

Disclosure of utility model

In view of the above, in order to overcome the defects in the prior art, the present utility model provides a device for machining irregular end teeth, so as to solve the problems set forth in the background art.

The technical scheme of the processing device comprises a mounting base, a floating positioning seat and a positioning body, wherein an annular boss is arranged at the top end of the mounting base, the floating positioning seat is positioned at the top end of the mounting base, a second step hole matched with the annular boss is formed in the bottom end of the floating positioning seat, a fixed shaft is sleeved at the top end of the second step hole, the positioning body is positioned at the top end of the floating positioning seat, a first step hole is formed in the bottom end of the positioning body, a tapered roller bearing is sleeved in the first step hole, and the tapered roller bearing is sleeved on the fixed shaft;

The radial outer side of the floating positioning seat is provided with a half blind hole cavity and a countersunk hole, the half blind hole cavity is internally provided with a screwed plug, a cylindrical spiral spring and a steel ball from bottom to top in sequence, and the bottom end of the positioning body is provided with a conical blind hole matched with the half blind hole cavity;

The top of location body is equipped with cavity type boss, set up the positioning tooth of circumference array on the cavity type boss, the top of fixed axle is provided with the screw thread, and has hexagonal nut through threaded connection, hexagonal nut's bottom is equipped with the opening pad, be equipped with work piece clamping part between opening pad and the location body, work piece clamping part is used for installing the part of waiting to process.

Further, the bottom slope of installation base sets up, the step groove parallel with the bottom has been seted up to the both sides of installation base, the through-hole has been seted up to the step inslot, set up on the outer wall of installation base with bottom vertically slope tangent plane, the screw hole corresponding with the countersink is seted up on the top of installation base.

Further, a fixed disc is arranged at the bottom end of the fixed shaft, and the fixed shaft is sleeved in the second step hole through the fixed disc.

Further, the semi-blind hole die cavity is arranged on the outer side of the countersink, an inner hexagon screw is sleeved in the countersink, the bottom thread of the inner hexagon screw is connected in the screw hole, the semi-blind hole die cavity is symmetrically arranged on the radial outer side of the floating positioning seat, threads connected with screw plugs in a threaded mode are arranged at the bottom end of the semi-blind hole die cavity, an incompletely penetrating conical hole is formed in the top end of the semi-blind hole die cavity, and the screw plugs sequentially plug the cylindrical spiral spring and the steel balls in the semi-blind hole die cavity.

Furthermore, the unthreaded hole of the locating body is larger than the shaft diameter of the fixed shaft, and the plurality of conical blind holes are circumferentially arrayed at the bottom end of the locating body and are the same as the positions of the half blind holes in the cavity.

Further, a central boss which is in fit connection with the hexagonal nut is arranged at the top end of the opening pad, and an opening groove which penetrates to the inner diameter is formed in the opening pad.

Compared with the prior art, the technical scheme provided by the utility model has the following remarkable effects:

1. when the base is machined and installed, the included angle between the bottom end face and the top end face is kept the same as the inclination angle of the irregular end teeth, after a part to be machined is installed in the workpiece clamping part, when the three-axis numerical control milling machine is used for cutting according to three-dimensional modeling and programming, the irregular end teeth which are radial along the radial direction and inwards or outwards can be machined on the end face of the part to be machined, the irregular end teeth with the inclination angle can be machined through the three-axis numerical control milling machine, the situation that a five-axis numerical control machine tool with high price is avoided, through holes in step grooves on two sides of the installation base are convenient to fix the part to the machine tool, and the three-axis numerical control milling machine is firm in connection and not easy to loosen.

2. Set up half blind hole die cavity on floating positioning seat, can realize the arbitrary rotation and the location to the position body through the extrusion of cylinder coil spring to the steel ball to can treat the change of processing part through taking off the opening pad on the fixed axle, avoided the loaded down with trivial details condition of dismantling hexagonal nut and treating the change of processing part, convenient and fast, the practicality is strong.

Drawings

Fig. 1 is a schematic cross-sectional view of the present utility model.

Fig. 2 is a schematic cross-sectional view of the utility model with a part to be machined installed.

Fig. 3 is a schematic top view of the mounting base of the present utility model.

Fig. 4 is a schematic cross-sectional view of the mounting base of the present utility model.

FIG. 5 is a schematic top view of the floating mount of the present utility model.

FIG. 6 is a schematic cross-sectional view of the floating mount of the present utility model.

Fig. 7 is a schematic top view of the positioning body of the present utility model.

FIG. 8 is a schematic cross-sectional view of a positioning body of the present utility model.

Fig. 9 is a schematic top view of the split pad of the present utility model.

FIG. 10 is a schematic cross-sectional view of an open ended mat of the present utility model.

Fig. 11 is a perspective view of a stationary shaft in the present utility model.

Reference numerals in the schematic drawings illustrate:

101. a mounting base; 102. a floating positioning seat; 103. a second stepped hole; 104. an annular boss; 105. a fixed shaft; 106. a through hole; 107. a semi-blind hole cavity; 108. screw holes; 109. an inner hexagon screw; 110. a steel ball; 111. a cylindrical coil spring; 112. plugging; 113. tapered roller bearings; 114. a positioning body; 115. a tapered blind hole; 116. a workpiece clamping portion; 117. positioning teeth; 118. a hexagonal nut; 119. an opening pad; 120. a step groove; 121. a bevel cut surface; 122. a fixed plate; 123. a hollow boss; 124. a first stepped hole; 125. a central boss; 126. an open slot; 127. and (5) sinking the holes.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the utility model, i.e., the embodiments described are merely some, but not all, of the embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Referring to fig. 1 to 11, the processing device for irregular end teeth comprises a mounting base 101, a floating positioning seat 102 and a positioning body 114, wherein the lower part of the mounting base 101 is a plane, the upper part of the mounting base is provided with an irregular disc part with an annular boss 104 and an inclined plane, the inclined plane is completely consistent with the residual angle between the bottom surface of the end tooth of a workpiece clamping part 116 to be clamped and the axis, a group of screw holes 108 which are perpendicular to the plane and consistent with the number and center distance of counter bores 127 on the floating positioning seat 102 and matched with the counter bores are arranged on the plane outside one end of the annular boss 104, meanwhile, rectangular step grooves 120 are respectively arranged on two sides of the plane perpendicular to the maximum inclined plane, the bottom surface of the groove is parallel to the lower plane, through holes 106 are drilled on the bottom surface of the groove and are used for being directly connected and fastened with a machine tool workbench, the annular boss 104 is arranged on the top end of the mounting base 101, the floating positioning seat 102 is positioned at the top end of the mounting base 101, the bottom end of the floating positioning seat 102 is provided with a second step hole 103 matched with the annular boss 104, the top end of the second step hole 103 is sleeved with a fixed shaft 105, the fixed shaft 105 is a rod part with threads on the upper part, a polished rod at the middle part and a fixed disc 122 at the lower part, the threads on the upper part are matched with a hexagonal nut 118, the polished rod at the middle part is sequentially in interference fit with the polished hole at the middle part of the floating positioning seat 102 and the inner diameter of a tapered roller bearing 113, the fixed disc 122 at the lower part of the fixed shaft 105 is fixedly pressed on the mounting base 101 by the floating positioning seat 102, the positioning body 114 is positioned at the top end of the floating positioning seat 102, the middle part of the floating positioning seat 102 is provided with the second step hole 103, one end is provided with a plurality of countersunk holes 127 for mounting inner hexagonal screws 109, a group of a plurality of (one or a plurality of divided by the number of the processed end teeth) half blind hole cavities 107 with the same center distance as the straight cone blind holes 115 on the positioning body 114 are arranged outside, and steel balls 110, cylindrical spiral springs 111 and plugs 112 are arranged in the half blind hole cavities 107; the light hole in the middle of the floating positioning seat 102 is in clearance fit with the fixed shaft 105, and the step at the top of the second step hole 103 presses the fixed disc 122 at the lower part of the fixed shaft 105; the step at the bottom of the second step hole 103 is in transition fit with an annular boss 104 at the upper part of the mounting base 101, so as to play a role in positioning; the semi-blind hole cavity 107 is provided with a section of internal thread, a smooth hole in the middle and a taper hole with an incomplete through top in sequence from bottom to top; the plug 112 sequentially plugs the cylindrical spiral spring 111 and the steel ball 110 in the semi-blind hole cavity 107, a first step hole 124 is formed in the bottom end of the positioning body 114, a tapered roller bearing 113 is sleeved in the first step hole 124, and the tapered roller bearing 113 is sleeved on the fixed shaft 105;

A half blind hole cavity 107 and a countersunk hole 127 are formed in the radial outer side of the floating positioning seat 102, a plug 112, a cylindrical spiral spring 111 and a steel ball 110 are sequentially arranged in the half blind hole cavity 107 from bottom to top, and a conical blind hole 115 matched with the half blind hole cavity 107 is formed in the bottom end of the positioning body 114;

The upper end surface of the rotatable positioning body 114 is provided with a hollow boss 123, and the hollow boss 123 is provided with positioning teeth 117 matched with the bevel teeth; the middle part of the rotatable positioning body 114 is provided with a light hole, the diameter of the light hole is slightly larger than the rod diameter of the fixed shaft 105, the lower part of the rotatable positioning body is provided with a first step hole 124, and the first step hole 124 is used for assembling the tapered roller bearing 113; the lower end face of the rotatable positioning body 114 is provided with a group of conical blind holes 115 with the same number of end teeth to be processed, a hollow boss 123 is provided with positioning teeth 117 in a circumferential array, the top end of the fixed shaft 105 is provided with threads, a hexagonal nut 118 is connected with the threads, the bottom end of the hexagonal nut 118 is provided with an opening pad 119, a workpiece clamping part 116 is arranged between the opening pad 119 and the positioning body 114, and the workpiece clamping part 116 is used for installing a part to be processed.

Specifically, referring to fig. 3 and 4, the upper end face of the mounting base 101 and the annular boss 104 are both inclined with respect to the lower end face of the base, after the workpiece clamping portion 116 is fixed on the machine tool workbench, the special structure can ensure that the part to be machined in the workpiece clamping portion 116 is in an inclined state, so that the bottom face of the upper end tooth of the part to be machined is in a horizontal state, thereby facilitating machining.

Specifically, referring to fig. 11, a bottom end of the fixed shaft 105 is provided with a fixed disc 122, and the fixed disc 122 can fix the fixed shaft 105 between the mounting base 101 and the floating mount 102, and the fixed shaft 105 is sleeved in the second stepped hole 103 through the fixed disc 122.

Specifically, referring to fig. 1 and 6, a group of several (one or several divided by the number of the processed end teeth) half blind hole cavities 107 with the same center distance as the taper blind holes 115 on the rotatable positioning body 114 are provided on the outer side of the countersunk hole 127, an inner hexagon screw 109 is sleeved in the countersunk hole 127, the bottom end of the inner hexagon screw 109 is in threaded connection with the screw hole 108, the bottom end of the half blind hole cavity 107 is provided with threads in threaded connection with a plug 112, the top end of the half blind hole cavity 107 is provided with an incompletely penetrating taper hole, the plug 112 sequentially plugs the cylindrical coil spring 111 and the steel ball 110 in the half blind hole cavity 107, and when the positioning body 114 rotates, the steel ball 110 can move axially under the elastic force of the cylindrical coil spring 111 and can be directly jacked into the taper blind holes 115 to position the positioning body 114.

Specifically, referring to fig. 8 and 7, the straight hole of the positioning body 114 is larger than the shaft diameter of the fixed shaft 105, the positioning body 114 is matched with the tooth surface at the bottom end of the workpiece clamping portion 116 through the positioning tooth 117 at the top end, so as to fix, and a plurality of tapered blind holes 115 are circumferentially arranged at the bottom end of the positioning body 114 and are positioned at the same position as the half blind hole cavity 107.

Specifically, referring to fig. 10 and 9, a central boss 125 attached to the hexagonal nut 118 is provided at the top end of the opening pad 119, and when the hexagonal nut 118 is unscrewed, the opening pad 119 is pulled out of the fixed shaft 105, so that the workpiece clamping portion 116 is replaced conveniently, the situation that the hexagonal nut 118 needs to be disassembled when the workpiece clamping portion 116 is replaced is avoided, and an opening groove 126 penetrating to the inner diameter is formed in the opening pad 119.

Specifically, the method comprises the following steps:

Step one, processing of the installation base 101: firstly, turning an annular boss 104 and a plane at the top end of a blank of a mounting base 101 by using a bar stock, machining a group of screw holes 108 which are consistent with the counter holes 127 on a floating positioning seat 102 in number and center distance and matched with each other on the plane, positioning the annular boss 104 and the plane on a triaxial numerical control mill, machining an inclined tangent plane 121 which is the same as the rest angle of an included angle between the bottom surface of a part to be machined and an axis on an outer cylindrical surface, cutting a plane perpendicular to the center line of the plane and the plane by using the plane as a reference, and finally, machining rectangular step grooves 120 on two sides perpendicular to the maximum inclination angle on the inclined plane by using the plane cut by the line as a reference, wherein the bottom surface of the groove is parallel to the lower plane, and the bottom surface of the groove is provided with a through hole 106;

Step two, processing the floating positioning seat 102: when the floating positioning seat 102 is machined, each hole and the end face in the middle are clamped and machined at one time, and then the other end face is turned around and machined, so that the two end faces are parallel; the second step hole 103 of the lower end surface is in transition fit with the annular boss 104 on the mounting base 101, and the depth of the second step hole 103 is slightly larger than the height of the annular boss 104 by 0.1-0.2mm; the second step hole 103 and the light hole in the middle are in transition fit with the fixed disc 122 and the shaft neck at the lower part of the fixed shaft 105, and the depth of the second step hole 103 is slightly smaller than the height of the disc at the lower part of the fixed shaft 105 by 0.1-0.3mm, so that the floating positioning seat 102 is convenient for tightly pressing the fixed shaft 105 on the end face of the annular boss 104 of the mounting base 101; the starting position of the machined semi-blind hole cavity 107 is an internal thread, the middle part is a unthreaded hole, the ending position is an incompletely communicated conical hole, and the aperture of the conical hole is slightly smaller than the diameter of the unthreaded hole by 2-3mm; finally, a group of counter sunk holes 127 are machined and matched with a group of screw holes 108 on the mounting base 101 for the fastening connection of the floating positioning seat 102 and the mounting base 101;

Step three, processing the positioning body 114: when the positioning body 114 is machined, the first step hole 124, the through hole 106 and the large end face in the middle are clamped and machined once, the first step hole 124 is in interference fit with the outer diameter of the tapered roller bearing 113, the depth of the first step hole 124 is slightly smaller than the thickness of the tapered roller bearing 113 by 0.1-0.2mm, and a gap of 0.1-0.2mm is reserved between the lower end face and the upper end face of the floating positioning seat 102 after the positioning body 114 and all parts are assembled; then turning around to process a hollow boss 123 at the other end, so that the hollow boss 123 is concentric with the first step hole 124; when a group of conical blind holes 115 on the lower end surface are machined, the center distance of the conical blind holes 115 is ensured to be consistent with the center distance of the half blind hole cavities 107 on the floating positioning seat 102, and the hole diameters of the conical blind holes 115 are completely consistent with the conical hole diameters in the half blind hole cavities 107; finally, a tooth form matching the bevel of the workpiece holding portion 116 is machined on the hollow boss 123.

Step four, assembling: after the machining and the inspection of each part are finished and qualified, sequentially placing the mounting base 101 on a machine tool workbench according to an assembly drawing, adjusting the maximum inclination angle surface of the mounting base 101 to be parallel to the X axis of the machine tool, and firmly fixing and connecting; the steel ball 110 and the cylindrical spiral spring 111 are sequentially arranged in the semi-blind hole cavity 107, and the spring is tightly pressed by the plug 112, so that the cylindrical spiral spring 111 is pressed to about two thirds of the limit pressure; the fixed shaft 105 is assembled with the floating positioning seat 102, and then the floating positioning seat 102 is assembled with the mounting base 101, and the fixed shaft is fixed and pressed; the tapered roller bearing 113 is arranged in the first step hole 124 of the positioning body 114, and then sleeved on the journal of the fixed shaft 105, so that the bottom surface of the positioning body 114 is closely matched with the upper plane of the floating positioning seat 102, the positioning body 114 can flexibly rotate around the fixed shaft 105, the positioning purpose is achieved along with the action of the steel ball 110 in the tapered blind hole 115, the tapered teeth of the part to be processed can be arranged in the positioning teeth 117 on the rotatable positioning body 114, the opening pad 119 is sleeved on the fixed shaft 105 and is matched with the upper plane of the clamping part 116 of the part to be processed, and then the hexagonal nut 118 is sleeved on the thread of the fixed shaft 105 to compress the opening pad 119, so that the whole device is fixed at the moment, and the whole device is assembled.

The using method of the device comprises the following steps: when the end teeth of the part are machined, the device is fixed on a triaxial milling machine, the part to be machined is placed in a workpiece clamping portion 116, the part to be machined is fixed through a hexagon nut 118 at the top end and an opening pad 119, machining is convenient, if the cutter is fed from the lowest end of the workpiece clamping portion 116, the tooth form with the bottom surface inclined inwards can be machined, if the cutter is fed from the highest end of the workpiece clamping portion 116, the tooth form with the bottom surface inclined outwards can be machined, the three-dimensional modeling and programming of the triaxial milling machine are combined, the end teeth with the two sides in radial trapezoid, rectangle, circular arc shape and the like can be machined, when one tooth form is machined, the hexagon nut 118 is loosened slightly, the part to be machined is rotated, the positioning body 114 rotates together, the steel ball 110 in the semi-blind hole cavity 107 moves axially under the action of the lower end face of the cylindrical spiral spring 111 and the positioning body 114, then the positioning body 114 enters into the conical blind hole 115 at the lower end, at this time, the workpiece clamping portion 116 and the positioning body 114 are subjected to rotation clamping stagnation, the hexagon nut 118 is not easy to rotate again, the end teeth can be machined, the whole machining process can be machined by repeatedly, the end teeth can be machined in sequence, the whole machining process can be accomplished by taking down the end teeth through the hexagon nut, and the complete, and the whole machining process can be machined by repeatedly, and the end teeth can be machined and clamped by the end nut is required to be machined and clamped and machined by the complete.

The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.

Claims (6)

1. The machining device for the irregular end teeth is characterized by comprising a mounting base (101), a floating positioning seat (102) and a positioning body (114), wherein an annular boss (104) is arranged at the top end of the mounting base (101), the floating positioning seat (102) is positioned at the top end of the mounting base (101), a second step hole (103) matched with the annular boss (104) is formed in the bottom end of the floating positioning seat (102), a fixed shaft (105) is sleeved at the top end of the second step hole (103), the positioning body (114) is positioned at the top end of the floating positioning seat (102), a first step hole (124) is formed in the bottom end of the positioning body (114), a tapered roller bearing (113) is sleeved in the first step hole (124), and the tapered roller bearing (113) is sleeved on the fixed shaft (105);

A half blind hole cavity (107) and a countersunk hole (127) are formed in the radial outer side of the floating positioning seat (102), a plug (112), a cylindrical spiral spring (111) and a steel ball (110) are sequentially arranged in the half blind hole cavity (107) from bottom to top, and a conical blind hole (115) matched with the half blind hole cavity (107) is formed in the bottom end of the positioning body (114);

The top of location body (114) is equipped with cavity type boss (123), set up positioning tooth (117) of circumference array on cavity type boss (123), the top of fixed axle (105) is provided with the screw thread, and has hexagonal nut (118) through threaded connection, the bottom of hexagonal nut (118) is equipped with opening pad (119), be equipped with work piece clamping part (116) between opening pad (119) and location body (114), work piece clamping part (116) are used for installing the part of waiting to process.

2. The irregular end tooth machining device according to claim 1, wherein the bottom end of the mounting base (101) is obliquely arranged, step grooves (120) parallel to the bottom end are formed in two sides of the mounting base (101), through holes (106) are formed in the step grooves (120), inclined tangential planes (121) perpendicular to the bottom end are formed in the outer wall of the mounting base (101), and screw holes (108) corresponding to the countersunk holes (127) are formed in the top end of the mounting base (101).

3. The device for machining the irregular end teeth according to claim 1, wherein a fixed disc (122) is arranged at the bottom end of the fixed shaft (105), and the fixed shaft (105) is sleeved in the second step hole (103) through the fixed disc (122).

4. The irregular end tooth machining device according to claim 1, wherein the semi-blind hole cavity (107) is arranged on the outer side of the countersunk hole (127), an inner hexagon screw (109) is sleeved in the countersunk hole (127), the bottom end of the inner hexagon screw (109) is in threaded connection with the screw hole (108), the semi-blind hole cavity (107) is symmetrically arranged on the radial outer side of the floating positioning seat (102), threads in threaded connection with a plug (112) are arranged at the bottom end of the semi-blind hole cavity (107), the top end of the semi-blind hole cavity (107) is provided with a conical hole which does not completely penetrate, and the plug (112) sequentially plugs the cylindrical spiral spring (111) and the steel ball (110) in the semi-blind hole cavity (107).

5. The device for machining irregular end teeth according to claim 1, wherein the light hole of the positioning body (114) is larger than the shaft diameter of the fixed shaft (105), and the plurality of tapered blind holes (115) are circumferentially arranged at the bottom end of the positioning body (114) and are positioned at the same position as the half blind hole cavities (107).

6. The device for machining irregular end teeth according to claim 1, wherein a central boss (125) which is in fit connection with a hexagonal nut (118) is arranged at the top end of the opening pad (119), and an opening groove (126) penetrating to the inner diameter is formed in the opening pad (119).