CN114833616B - High-precision clamp for positioning end teeth of movable tooth sleeve of differential lock - Google Patents

Abstract

The application relates to a high accuracy anchor clamps that is used for differential lock to remove tooth cover end tooth location, including base, slider deflector, a plurality of location slider, pressure cover. The slide block guide plate and the base are coaxially arranged and fixedly connected to the base. The positioning slide block is in sliding connection with the slide block guide plate along the radial direction of the slide block guide plate, the positioning slide block comprises a connecting part which at least partially protrudes out of the slide block guide plate, and the connecting part is used for being matched with a tooth slot structure so that the positioning slide block is partially embedded into the tooth slot. The pressing sleeve is located on one side, far away from the base, of the sliding block guide plate, is coaxially arranged with the sliding block guide plate, is abutted with the positioning sliding blocks, and is configured to move towards the sliding block guide plate to drive the positioning sliding blocks to slide along the radial direction of the sliding block guide plate. According to the scheme, the positioning slide block slides along the radial direction of the slide block guide plate to radially position the differential lock moving tooth sleeve, so that the problem that the differential lock moving tooth sleeve forging piece jumping precision is low in the prior art is solved.

Description

High-precision clamp for positioning end teeth of movable tooth sleeve of differential lock

Technical Field

The application relates to the field of manufacturing of differential lock movable tooth sleeves, in particular to a high-precision clamp for positioning end teeth of a differential lock movable tooth sleeve.

Background

The movable tooth sleeve of the differential lock of the automobile is an important part of the differential lock assembly, and structurally comprises end teeth, an internal spline and a shifting fork groove, wherein the internal spline of the movable tooth sleeve of the differential lock has high requirements on the jumping precision of the end teeth. In the existing manufacturing process of the movable tooth sleeve of the differential lock, the end tooth is usually manufactured by adopting a machining process, the technology of manufacturing the end tooth of the movable tooth sleeve of the differential lock by adopting a precision forging process appears in recent years, and the precision forging end tooth has the advantages of high production efficiency, high material utilization rate, good strength and the like, and is widely applied.

When the end teeth of the movable tooth sleeve of the differential lock are manufactured by adopting a precision forging process, after the end teeth are forged, the outer circle or the inner hole of the forging piece is used for positioning and clamping, a shifting fork groove and an inner spline reference hole are turned, and then an inner spline is broached. In the prior art, the precision of jumping of the outer circle or the inner hole of the differential lock movable tooth sleeve forging piece relative to the end teeth of the differential lock movable tooth sleeve forging piece is low, and the outer circle or the inner hole of the differential lock movable tooth sleeve forging piece is used as a machining reference of an internal spline reference hole, so that the high precision requirement of jumping of the opposite end teeth of the internal spline of the differential lock movable tooth sleeve cannot be guaranteed.

Therefore, the existing precision forging and subsequent machining clamping mode of the end teeth of the movable tooth sleeve of the differential lock is required to be innovated, and a high-precision clamp for positioning the end teeth of the movable tooth sleeve of the differential lock is developed to ensure the high-precision requirement of jumping of the inner spline of the movable tooth sleeve of the differential lock relative to the end teeth.

Disclosure of Invention

Based on the above, it is necessary to provide a high-precision clamp for positioning the end teeth of the movable tooth sleeve of the differential lock, and the problem that the jumping precision of the opposite end teeth of the internal spline of the movable tooth sleeve of the differential lock in the prior art is low is solved.

The application provides a high accuracy anchor clamps for differential lock removes tooth cover end tooth location, differential lock removes the terminal surface of tooth cover and evenly sets up a plurality of tooth grooves in order to form the end tooth, the tooth groove radially sets up and the width reduces gradually from periphery to centre of a circle direction. The high-precision clamp comprises a base, a slide block guide plate, a plurality of positioning slide blocks and a pressing sleeve. The sliding block guide plate and the base are coaxially arranged and fixedly connected to the base. The positioning slide blocks are uniformly arranged along the circumference of the slide block guide plate, each positioning slide block is in sliding connection with the slide block guide plate along the radial direction of the slide block guide plate, each positioning slide block comprises a connecting part which at least partially protrudes out of the slide block guide plate, and the connecting part is used for being matched with the tooth slot structure so that the positioning slide block is partially embedded into the tooth slot. The pressing sleeve is located on one side, far away from the base, of the sliding block guide plate, the pressing sleeve and the sliding block guide plate are coaxially arranged, the pressing sleeve is abutted to a plurality of positioning sliding blocks, and the pressing sleeve is configured to move towards the sliding block guide plate to drive the positioning sliding blocks to slide along the radial direction of the sliding block guide plate.

In the scheme, through setting up a plurality of positioning slide blocks that move tooth cover's end tooth structure looks adaptation with the differential lock for the positioning slide block is along the radial slip of slider deflector in order to carry out radial positioning to the differential lock and remove tooth cover, still cooperates the cover to drive a plurality of positioning slide blocks simultaneous movement, improves the precision that the positioning slide block moved the tooth cover to the differential lock and carries out radial positioning, through the positioning accuracy who improves the in-process to the differential lock and remove tooth cover, thereby has solved the problem that the excircle or the hole that use the differential lock to remove tooth cover forging in the prior art are as machining location benchmark, and the internal spline that leads to is lower rather than the precision of beating of its end tooth.

The technical scheme of the application is further described below:

in any embodiment, an elastic piece is arranged between each positioning slide block and the slide block guide plate, and the elastic piece and the sliding direction of the positioning slide blocks are arranged in the same direction.

In any embodiment, the pressing sleeve is configured to move along the axial direction of the base, the pressing sleeve is sleeved on the periphery of the slide block guide plate, the inner ring surface of the pressing sleeve is abutted to the positioning slide block, and the inner ring surface is a conical surface.

In any embodiment, the surface of each positioning sliding block facing the inner annular surface is provided with an outer conical surface, and the outer conical surface is matched and attached with the inner annular surface.

In any embodiment, a conical groove is formed in the center of the surface, close to the slide block guide plate, of the base, a conical protruding block matched with the conical groove is arranged in the center of the slide block guide plate, and the conical protruding block is embedded into the conical groove and fixedly connected with the conical groove.

In any embodiment, the slide guide plate is provided with a plurality of limiting pins, the limiting pins are all arranged on the sliding path of the positioning slide, and each positioning slide corresponds to at least one limiting pin.

In any embodiment, the slide block guide plate is provided with guide grooves with the number corresponding to that of the positioning slide blocks, the guide grooves are uniformly distributed along the circumferential direction of the slide block guide plate and are radially arranged along the slide block guide plate, each guide groove corresponds to one tooth groove, each guide groove is a step groove in the axial direction, and the positioning slide blocks further comprise sliding parts which are of step structures and are in sliding fit with the guide grooves.

In any embodiment, the high-precision clamp further comprises a guide rod and a transition plate, wherein the transition plate is positioned on one side, far away from the pressing sleeve, in the base, two ends of the guide rod are respectively and fixedly connected with the pressing sleeve and the transition plate, and the guide rod penetrates through the base and is in sliding connection with the base.

In any embodiment, the number of the guide rods is plural, and the plural guide rods are uniformly arranged along the circumferential direction of the sliding guide plate.

In any embodiment, both ends of the guide rod are of conical structures, the pressing sleeve and the transition plate are respectively provided with conical holes matched with the guide rod, and both ends of the guide rod are embedded into the conical holes and fixedly connected.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application, illustrate and explain the application and are not to be construed as limiting the application.

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a right side view of a differential lock moving sleeve;

FIG. 2 is a front view of the differential lock moving sleeve of FIG. 1;

FIG. 3 is a front view of a high precision fixture according to one embodiment of the present application;

FIG. 4 is a cross-sectional view A-A of FIG. 3;

FIG. 5 is a schematic view of the installation of the slider guide plate and positioning slider of FIG. 4;

fig. 6 is a schematic view of the mounting of the base, slider guide plate, positioning slider and stop pin of fig. 3.

Reference numerals illustrate:

100. a high-precision clamp; 110. a base; 111. a conical groove; 120. a slider guide plate; 121. conical protruding blocks; 122. a guide groove; 130. positioning a sliding block; 131. a connection part; 132. a sliding part; 133. an outer conical surface; 134. abutting the end face; 140. pressing the sleeve; 141. an inner annulus; 150. an elastic member; 160. a limiting pin; 170. a guide rod; 180. a transition plate;

200. the differential lock moves the tooth sleeve; 210. an end face; 220. tooth slots; 230. a bottom surface;

310. a claw; 320. and (5) a pull rod.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other ways than those herein described and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not limited to the specific embodiments disclosed below.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the description of the figures above are intended to cover non-exclusive inclusions.

In the description of the embodiments of the present application, the term "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Preferred embodiments of the present application will be described below with reference to the accompanying drawings.

As shown in fig. 1, the end face 210 of the differential lock moving gear sleeve 200 is uniformly provided with a plurality of tooth grooves 220 to form end teeth, and as shown in fig. 2, the tooth grooves 220 are radially arranged and gradually decrease in width from the outer circumference to the center of the circle. Fig. 3 to 6 show a high-precision fixture 100 for positioning end teeth of a differential lock moving gear sleeve 200 according to an embodiment of the present application.

As shown in fig. 3 and 4, the high precision jig 100 mainly includes a base 110, a slider guide 120, a plurality of positioning sliders 130, and a press sleeve 140. The differential lock moving gear sleeve 200 is clamped using the high precision jig 100 and clamped on the processing machine together with the differential lock moving gear sleeve 200. As shown in fig. 3 and 4, the high precision jig 100 is held by the claw 310 of the processing machine.

As shown in fig. 3 and 4, the slider guide plate 120 is coaxially disposed with the base 110 and fixedly coupled to the base 110. As shown in fig. 6, alternatively, the slider guide plate 120 and the base 110 are both circular structures, and the slider guide plate 120 is disposed coaxially with the base 110. Referring to fig. 5 and 6, the plurality of positioning sliders 130 are uniformly disposed along the circumferential direction of the slider guide plate 120, and in the embodiment shown in fig. 5 and 6, the number of positioning sliders 130 is 5, and the 5 positioning sliders 130 are uniformly distributed along the circumferential direction of the slider guide plate 120. In other embodiments, the number of positioning sliders 130 may be selected according to the number of tooth slots 200 of the differential lock moving tooth case 200, and preferably, the positioning sliders 130 are uniformly distributed.

Referring to fig. 5 and 6, each of the positioning sliders 130 is slidably coupled to the slider guide plate 120 in a radial direction of the slider guide plate 120, and the positioning sliders 130 are configured to be slidable with respect to the slider guide plate 120 in the radial direction of the slider guide plate 120 to be close to or apart from a central axis of the slider guide plate 120. As shown in fig. 5, the portion of the positioning slider 130 near the tooth slot 220 is a connecting portion 131, and the connecting portion 131 at least partially protrudes from the slider guide plate 120. As shown in fig. 2 and 5, the width of the connection part 131 is gradually reduced from the outer circumference of the slider guide plate 120 to the center direction to be structurally adapted to the tooth slot 220 so that the positioning slider 130 is partially inserted into the tooth slot 220, thereby radially positioning the differential lock moving gear sleeve 200 using the positioning slider 130.

The thickness of the connecting portion 131 protruding from the slider guide plate 120 in the axial direction is not smaller than the depth of the slot 220. When the high-precision fixture 100 positions the differential lock moving gear sleeve 200, the surface of the positioning slider 130 facing the differential lock moving gear sleeve 200 is an abutting end surface 134, and the abutting end surface 134 abuts against the bottom surface 230 of the tooth slot 220 of the differential lock moving gear sleeve 200, so that the positioning slider 130 positions the differential lock moving gear sleeve 200 in the axial direction.

Since the widths of the connection portion 131 and the tooth groove 220 are gradually reduced from the outer circumference to the center direction, as shown in fig. 4, when the positioning slider 130 is radially at the distal end, the connection portion 131 can be partially embedded in the tooth groove 220. When the positioning slider 130 slides relative to the slider guide plate 120 in the radial direction of the slider guide plate 120 to approach the central axis of the slider guide plate 120, the width of the connecting portion 131 embedded in the tooth slot 220 is gradually increased, and due to the structural adaptation of the connecting portion 131 and the tooth slot 220, when the connecting portion 131 is completely embedded in the tooth slot 220 in the radial direction, the side walls of the connecting portion 131 and the tooth slot 220 abut against each other, and at this time, the positioning slider 130 positions the differential lock moving gear sleeve 200 in the radial direction. Since the positioning slider 130 is uniformly disposed along the circumferential direction of the slider guide plate 120, the differential lock moving gear sleeve 200 is uniformly positioned by the positioning slider 130 in the radial direction, thereby achieving complete positioning of the differential lock moving gear sleeve 200 in the radial direction.

As shown in fig. 4, the pressing sleeve 140 is located at one side of the slider guide plate 120 away from the base 110, the pressing sleeve 140 is coaxially disposed with the slider guide plate 120, the pressing sleeve 140 abuts against the positioning sliders 130, and the pressing sleeve 140 is configured to be capable of moving towards the slider guide plate 120 to drive the positioning sliders 130 to slide along the radial direction of the slider guide plate 120. By arranging the pressing sleeve 140 to be abutted against the positioning sliding blocks 130, the positioning sliding blocks 130 are stressed uniformly at the same time, so that the speed of the positioning sliding blocks 130 is consistent when the positioning sliding blocks 130 slide along the radial direction of the sliding block guide plate 120, and the deflection of the positioning sliding blocks 130 to the differential lock moving tooth sleeve 200 caused by sequential positioning is avoided.

When the high-precision fixture 100 for positioning the end teeth of the differential lock moving gear sleeve 200 is used for positioning the differential lock moving gear sleeve 200, the bottom surface 230 of the tooth groove 220 of the differential lock moving gear sleeve 200 is abutted against the abutting end surface 134 of the positioning slide block 130, and at this time, the connecting part 131 can be partially embedded into the tooth groove 220, so that the differential lock moving gear sleeve 200 is positioned in the axial direction through the positioning slide block 130. The plurality of positioning sliding blocks 130 are simultaneously and uniformly stressed by moving the pressing sleeve 140 towards the sliding block guide plate 120, so that the plurality of positioning sliding blocks 130 are driven to slide at the same speed along the radial direction of the sliding block guide plate 120 until the connecting part 131 is completely embedded into the tooth groove 220 in the radial direction, the connecting part 131 is abutted with the side wall of the tooth groove 220, and the plurality of positioning sliding blocks 130 are used for completely positioning the differential lock moving tooth sleeve 200 in the radial direction.

In the above scheme, through setting up a plurality of positioning slide blocks 130 that move tooth cover 200 with differential lock's end tooth structure looks adaptation for positioning slide block 130 radially slides along slider deflector 120 in order to carry out radial positioning to differential lock and remove tooth cover 200, still cooperate press cover 140 to drive a plurality of positioning slide blocks 130 simultaneous movement, improve positioning slide block 130 and remove tooth cover 200 to differential lock and carry out radial positioning's precision, through improving the positioning accuracy to differential lock in the course of machining and remove tooth cover 200, thereby the excircle or the hole that use differential lock to remove tooth cover 200 forging in the prior art are as the machining positioning benchmark, and the problem that the internal spline that leads to is lower relative to the runout precision of its end tooth.

Referring to fig. 3 and 4, according to some embodiments of the present application, optionally, an elastic member 150 is disposed between each positioning slider 130 and the slider guide plate 120, and the elastic member 150 is disposed in the same direction as the sliding direction of the positioning slider 130. In the embodiment shown in fig. 4, the elastic member 150 is a spring.

The elastic member 150 functions in: when the pressing sleeve 140 moves in a direction away from the slider guide plate 120, the positioning slider 130 can slide relative to the slider guide plate 120 in a radial direction of the slider guide plate 120 under the elastic force of the elastic member 150 to be away from the central axis of the slider guide plate 120. The elastic member 150 is provided to facilitate the insertion of the narrower portion of the connecting portion 131 of the positioning slider 130 into the wider portion of the slot 220, thereby facilitating the insertion of the connecting portion 131 of the positioning slider 130 into the slot 220.

Referring to fig. 3 and 4, according to some embodiments of the present application, optionally, the pressing sleeve 140 is configured to move along the axial direction of the base, the pressing sleeve 140 is annular, the pressing sleeve 140 is sleeved on the periphery of the slider guide plate 120, the inner annular surface 141 of the pressing sleeve 140 abuts against the positioning slider 130, and the inner annular surface 141 is a conical surface. As shown in fig. 4, the radius of the inner circumferential surface 141 of the pressing sleeve 140 gradually becomes smaller from the side closer to the slider guide plate 120 to the side farther from the slider guide plate 120.

By setting the inner annular surface 141 as a conical surface, the pressing sleeve 140 can apply radial pressure to the positioning slide 130 in the process of moving towards the slide guide plate 120, so as to drive the positioning slide 130 to slide along the radial direction of the slide guide plate 120.

In response to the inner annular surface 141 being tapered, as shown in fig. 4 and 5, according to some embodiments of the present application, optionally, the surface of the positioning slider 130 facing the inner annular surface 141 has an outer tapered surface 133, and the surface of each positioning slider 130 near the end tooth and the surface far from the center of the slider guide plate 120 have an outer tapered surface 133, and the taper angle of the outer tapered surface 133 is adapted to the taper angle of the inner annular surface 141. As shown in fig. 4, during the process of abutting the press sleeve 140 and the positioning slider 130, the outer tapered surface 133 contacts the inner annular surface 141. By setting the abutment position as the outer conical surface 133, the contact area can be increased, and the stability of the pressing sleeve 140 driving the positioning slider 130 to slide can be improved.

As shown in fig. 4, according to some embodiments of the present application, optionally, a tapered groove 111 is provided at a center of a surface of the base 110 near the slider guide plate 120, and a tapered protrusion 121 adapted to the tapered groove 111 is provided at a center of the slider guide plate 120, in this embodiment, preferably, the tapered protrusion 121 is embedded in the tapered groove 111, and the tapered protrusion 121 is in tapered contact with the tapered groove 111, and is automatically centered, so as to improve coaxiality of the base 110 and the slider guide plate 120. The base 110 and the slider guide plate 120 are also fixedly connected by screws. In other embodiments, the base 110 and the slider guide 120 may also be connected by a cylindrical interference fit.

Referring to fig. 4 and 6, according to some embodiments of the present application, optionally, the slider guide plate 120 is provided with a plurality of limiting pins 160, where the limiting pins 160 are disposed on the sliding path of the positioning sliders 130, and each positioning slider 130 corresponds to at least one limiting pin 160. The limiting pin 160 is used for limiting the distance away from the central axis of the slide guide plate 120 when the positioning slide 130 slides along the radial direction of the slide guide plate 120, so as to avoid that the positioning slide 130 is separated from the slide guide plate 120 and the positioning of the next workpiece is inconvenient.

Referring to fig. 5, according to some embodiments of the present application, the slider guide plate 120 is optionally provided with a number of guide grooves 122 corresponding to the positioning sliders 130, and the guide grooves 122 are uniformly distributed along the circumferential direction of the slider guide plate 120. In the present embodiment, the number of the guide grooves 122 is 5, and the 5 guide grooves 122 are uniformly distributed along the axial direction of the slider guide plate 120. The guide grooves 122 are disposed along the radial direction of the slider guide plate 120, and each guide groove 122 corresponds to one tooth slot 220, and the guide groove 122 is used for sliding fit with the positioning slider 130. Each guide groove 122 is a stepped groove in the axial direction. As shown in fig. 5, the positioning slider 130 further includes a sliding portion 132, and the sliding portion 132 has a stepped structure. The sliding portion 132 is slidably engaged with the guide groove 122.

Referring to fig. 4, according to some embodiments of the present application, optionally, the high precision fixture 100 further includes a guide rod 170 and a transition plate 180, the transition plate 180 is located on a side of the base 110 away from the pressing sleeve 140, two ends of the guide rod 170 are fixedly connected to the pressing sleeve 140 and the transition plate 180, and the guide rod 170 penetrates through the base 110 and is slidably connected to the base 110 with a small gap. In the embodiment shown in fig. 4, the side of the base 110 remote from the sliding guide plate is provided with a recess in which the transition plate 180 is located.

As shown in fig. 4, when the high-precision fixture 100 is mounted on a processing machine, the transition plate 180 is connected to the pull rod 320 of the processing machine, and the pull rod 320 drives the transition plate 180 to move. The transition plate 180 moves, and the pressing sleeve 140 moves synchronously with the transition plate 180 under the action of the guide rod 170.

According to some embodiments of the present application, the number of the guide bars 170 is optionally plural, and the plurality of guide bars 170 are uniformly disposed along the circumferential direction of the sliding guide plate. As shown in fig. 3, the number of the guide bars 170 is 3, and the 3 guide bars 170 are uniformly arranged along the circumferential direction of the sliding guide plate. In other embodiments, the number of guide bars 170 may be a greater number, for example 5. Through setting up a plurality of guide bars 170, and along circumference even setting, can drive a plurality of guide bars 170 simultaneously through moving the transition board 180 and remove, and then exert pulling force to the slip deflector from a plurality of positions, avoid the slip deflector to influence the slip of location slider 130 because of the uneven slope of atress.

Referring to fig. 4, according to some embodiments of the present application, optionally, both ends of the guide rod 170 are tapered structures, the pressing sleeve 140 and the transition plate 180 are respectively provided with tapered holes adapted to the guide rod 170, and both ends of the guide rod 170 are embedded in the tapered holes and fixedly connected. Preferably, both ends of the guide rod 170 are connected with two tapered holes in a conical contact manner, so as to avoid the inclination of the guide rod 170 when the guide rod is mounted on the transition plate 180 and the slider guide plate 120, and ensure the coaxiality of the pressing sleeve 140 and the base 110. As shown in fig. 4, both ends of the guide rod 170 are connected with the pressing sleeve 140 and the transition plate 180 by using screws, and the lengths of both ends of the guide rod 170 embedded into the tapered holes are deeper and deeper by gradually screwing the screws, and the guide rod 170 is radially positioned by using the sides of the tapered holes, so that the guide rod 170 is prevented from being inclined when being mounted on the transition plate 180 and the pressing sleeve 140.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features can be replaced with equivalents; such modifications and substitutions do not depart from the spirit of the embodiments, and are intended to be included within the scope of the claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (3)

1. A high accuracy anchor clamps for differential lock removes tooth cover end tooth location, differential lock removes the terminal surface of tooth cover and evenly sets up a plurality of tooth grooves in order to form the end tooth, the tooth groove radially sets up and the width reduces gradually from periphery to centre of a circle direction, its characterized in that, high accuracy anchor clamps include:

a base;

the sliding block guide plate is coaxially arranged with the base and is fixedly connected with the base;

the positioning slide blocks are uniformly arranged along the circumferential direction of the slide block guide plate, each positioning slide block is connected with the slide block guide plate in a sliding manner along the radial direction of the slide block guide plate, each positioning slide block comprises a connecting part which at least partially protrudes out of the slide block guide plate in the axial direction, and the width of the connecting part gradually decreases from the periphery to the circle center so as to be matched with the tooth groove structure, so that the positioning slide blocks are partially embedded into the tooth grooves to position the differential lock moving tooth sleeve;

the pressing sleeve is positioned on one side, far away from the base, of the slide block guide plate, the pressing sleeve and the slide block guide plate are coaxially arranged, the pressing sleeve is abutted to a plurality of positioning slide blocks, and the pressing sleeve is configured to move towards the slide block guide plate so as to drive the positioning slide blocks to slide along the radial direction of the slide block guide plate;

an elastic piece is arranged between each positioning slide block and the slide block guide plate, and the elastic piece and the sliding direction of the positioning slide blocks are arranged in the same direction; the pressing sleeve is configured to move along the axial direction of the base, the pressing sleeve is sleeved on the periphery of the slide block guide plate, the inner ring surface of the pressing sleeve is abutted with the positioning slide block, and the inner ring surface is a conical surface; each positioning sliding block is provided with an outer conical surface facing the inner annular surface, and the outer conical surface is matched and attached with the inner annular surface; the base is provided with a conical groove near the center of the surface of the slide block guide plate, the center of the slide block guide plate is provided with a conical convex block matched with the conical groove, and the conical convex block is embedded into the conical groove and fixedly connected with the conical groove; the sliding block guide plate is provided with a plurality of limiting pins, the limiting pins are arranged on the sliding path of the positioning sliding block, and each positioning sliding block corresponds to at least one limiting pin; the sliding block guide plate is provided with guide grooves which are in a quantity corresponding to that of the positioning sliding block, the guide grooves are uniformly distributed along the circumferential direction of the sliding block guide plate and are arranged along the radial direction of the sliding block guide plate, each guide groove corresponds to one tooth slot, each guide groove is a step groove in the axial direction, and the positioning sliding block further comprises a sliding part which is in a step structure and is in sliding fit with the guide groove; the high-precision clamp further comprises a guide rod and a transition plate, wherein the transition plate is positioned on one side, far away from the pressing sleeve, in the base, two ends of the guide rod are fixedly connected with the pressing sleeve and the transition plate respectively, and the guide rod penetrates through the base and is in sliding connection with the base.

2. The high-precision clamp for positioning end teeth of a movable tooth sleeve of a differential lock according to claim 1, wherein the number of the guide rods is plural, and the plurality of the guide rods are uniformly arranged along the circumferential direction of the slide guide plate.

3. The high-precision clamp for positioning end teeth of a movable tooth sleeve of a differential lock according to claim 1, wherein both ends of the guide rod are of conical structures, the pressing sleeve and the transition plate are respectively provided with conical holes matched with the guide rod, and both ends of the guide rod are embedded into the conical holes and fixedly connected.

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