CN219704848U - Checking tool - Google Patents

Abstract

The utility model relates to the technical field of differential mechanism bolt torque checking, in particular to a checking tool. The utility model provides a checking fixture, which is used for clamping a workpiece to be checked, and comprises: the device comprises a base, a supporting platform and a fixing mechanism; the support platform is arranged on the base and is provided with a fixing structure for being matched with the workpiece to be checked; the fixing mechanism is arranged on the base, is positioned on the periphery of the supporting platform, is rotationally connected with the base and can compress the workpiece to be verified through rotating the fixing mechanism. Can control fixed establishment's volume of pushing down through rotatory fixed establishment, compare in current elbow clamp structure, its clamp force is bigger, can not appear failing the problem of damage because of the clamp force is not enough, cooperates fixed knot on the supporting platform, waits to check-up work piece fixed firm on the supporting platform, makes things convenient for operating personnel to carry out check-up work.

Description

Checking tool

Technical Field

The utility model relates to the technical field of differential mechanism bolt torque checking, in particular to a checking tool.

Background

The differential is a mechanism that enables the left and right (or front and rear) drive wheels to rotate at different speeds. It mainly comprises left and right half axle gears, a planetary gear train, a gear frame and the like.

In practical application, in order to guarantee the stability of differential mechanism work, need carry out the check-up to the bolt on the ring gear, current check-up mode is generally placed the ring gear on the check-up bench, later through elbow clamp structure centre gripping ring gear, but because the moment of torsion of bolt is great, leads to elbow clamp structure unstable when the centre gripping ring gear to take place the damage easily.

Disclosure of Invention

The utility model solves the problems that: when the gear ring of the existing differential mechanism is verified, the structure of the elbow clamp for clamping the gear ring is unstable due to the fact that the torque of the bolt on the gear ring is large, and damage is easy to occur.

(II) technical scheme

In order to solve the above technical problems, an embodiment of the present utility model provides a calibration fixture for clamping a workpiece to be calibrated, the calibration fixture includes: the device comprises a base, a supporting platform and a fixing mechanism;

the support platform is arranged on the base, and a fixing structure for being matched with the workpiece to be verified is arranged on the support platform;

the fixing mechanism is arranged on the base, is positioned on the periphery of the supporting platform, is rotationally connected with the base, and can compress the workpiece to be verified by rotating the fixing mechanism.

Further, a supporting seat corresponding to the fixing mechanism is arranged on the base;

the fixing mechanism comprises a sliding piece, a first rotating rod and a pressing component;

the sliding piece is connected to the supporting seat in a sliding way, the pressing component is connected to the sliding piece and used for pressing the workpiece to be checked;

the first rotary rod is rotationally connected with the supporting seat, a first wedge-shaped surface is arranged on the side wall of the first rotary rod, a second wedge-shaped surface corresponding to the first wedge-shaped surface is arranged on the sliding piece, and the first wedge-shaped surface and the second wedge-shaped surface are propped against each other.

Further, the fixing mechanism further comprises a first elastic piece;

the first elastic piece is arranged between the sliding piece and the supporting seat and is used for supporting the sliding piece.

Further, a limit screw is arranged on the supporting seat, a first screw hole corresponding to the limit screw is formed in the end face of the first rotary rod, and the limit screw is connected with the first screw hole.

Further, a first through hole is formed in the sliding piece, the sliding piece is sleeved on the supporting seat through the first through hole, and the sliding piece and the supporting seat can rotate relatively;

and a limiting assembly is arranged between the supporting seat and the first through hole and used for limiting the rotation angle of the sliding piece.

Further, the limiting component comprises a protruding block arranged on the outer wall of the supporting seat and a groove arranged on the inner wall of the first through hole;

the grooves are arranged corresponding to the protruding blocks, and the width of each groove is larger than that of each protruding block along the rotating direction of the sliding piece.

Further, the compression assembly comprises a compression screw and a second mounting hole arranged on the sliding piece;

and the compression screw and the nut are matched and screwed on the second mounting hole.

Further, the support platform includes a body and a support;

the main body is provided with a first mounting hole, and the supporting piece is provided with a first end and a second end which are opposite;

the first end of the supporting piece is arranged in the first mounting hole, and the second end of the supporting piece is provided with the fixing structure.

Further, the support platform further comprises a second elastic member;

the second elastic piece is arranged in the first mounting hole;

the support member is connected with the second elastic member, and the second elastic member is used for enabling the support member to float in the first mounting hole.

Further, the support platform further comprises a fixing component;

the fixing component is arranged on the main body and is used for fixing the supporting piece.

Further, the fixed assembly comprises a pushing piece and a second rotating rod;

a sliding hole communicated with the first mounting hole is formed in the side wall of the main body, and a first thread is arranged on the inner wall of at least one end, far away from the first mounting hole, of the sliding hole;

the lateral wall of second rotary rod be provided with the second screw thread that first screw thread corresponds, the impeller with the second rotary rod all set up in the slide hole, just the one end of impeller can by the slide hole with the intercommunication department of first mounting hole stretches into in the first mounting hole and with support piece links to each other, the other end of impeller with the second rotary rod offsets, the second rotary rod passes through the second screw thread with first screw thread cooperation revolve twist in the slide hole.

Further, the side wall of the supporting piece is provided with a third wedge-shaped surface, and one end, far away from the second rotating rod, of the pushing piece is provided with a fourth wedge-shaped surface matched with the third wedge-shaped surface.

Further, the base comprises a bottom plate and a supporting plate, and the supporting plate is rotatably connected to the base.

The utility model has the beneficial effects that:

the utility model provides a checking fixture, which is used for clamping a workpiece to be checked, and comprises: the device comprises a base, a supporting platform and a fixing mechanism; the support platform is arranged on the base, and a fixing structure for being matched with the workpiece to be verified is arranged on the support platform; the fixing mechanism is arranged on the base, is positioned on the periphery of the supporting platform, is rotationally connected with the base, and can compress the workpiece to be verified by rotating the fixing mechanism.

Can control fixed establishment's volume of pushing down through rotatory fixed establishment, compare in current elbow clamp structure, its clamp force is bigger, can not appear failing the problem of damage because of the clamp force is not enough, cooperates fixed knot on the supporting platform, waits to check-up work piece fixed firm on the supporting platform, makes things convenient for operating personnel to carry out check-up work.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic structural diagram of a calibration fixture and a workpiece to be calibrated according to an embodiment of the present utility model;

FIG. 2 is a perspective view of a verification tool provided by an embodiment of the utility model;

FIG. 3 is a cross-sectional view of a verification tool provided by an embodiment of the utility model;

FIG. 4 is an exploded view of a securing mechanism according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a support according to an embodiment of the present utility model;

FIG. 6 is a schematic structural diagram of a fixing assembly according to an embodiment of the present utility model;

fig. 7 is a schematic structural diagram of the fixing component and the supporting component according to the embodiment of the present utility model. Icon: 1-a base; 11-a support plate; 12-a bottom plate; 13-a rotating shaft; 14-a bearing; 15-a supporting seat;

2-a support platform; 21-a body; 211-a first mounting hole; 212-slide hole; 22-a support; 221-a third wedge surface; 23-a fixed structure; 24-a second elastic member; 25-a fixed assembly; 251-pushing member; 252-a second rotary lever; 2511-fourth wedge faces;

3-a fixing mechanism; 31-a slider; 311-a first through hole; 32-a first rotary rod; 33-a hold-down assembly; 331-a compression screw; 332-a second mounting hole;

4-a workpiece to be checked.

Detailed Description

The technical solutions of the present utility model will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The embodiment of the utility model provides a checking tool which is used for clamping a workpiece 4 to be checked.

Alternatively, the workpiece 4 to be verified may be a differential gear ring.

As shown in fig. 1 to 7, the embodiment of the present utility model provides a checking fixture including: base 1, supporting platform 2 and fixed establishment 3. The support platform 2 is arranged on the base 1, and a fixing structure 23 matched with the workpiece 4 to be checked is arranged on the support platform 2. The fixing mechanism 3 is arranged on the base 1, the fixing mechanism 3 is positioned on the periphery of the supporting platform 2, the fixing mechanism 3 is rotationally connected with the base 1, and the workpiece 4 to be verified can be pressed by rotating the fixing mechanism 3.

The checking fixture provided by the embodiment comprises a base 1, a supporting platform 2 and a fixing mechanism 3. The base 1 is used for supporting the fixing mechanism 3 and the supporting platform 2, the supporting platform 2 is used for placing a workpiece 4 to be verified, and the fixing mechanism 3 is used for clamping the workpiece 4 to be verified on the supporting platform 2. The support platform 2 is provided with a fixing structure 23 for cooperating with the workpiece 4 to be inspected, and the specific structure of the fixing structure 23 will be described below. The fixing structure 23 is mainly used for limiting the rotation of the workpiece 4 to be verified on the supporting platform 2. The fixing mechanism 3 is disposed on the circumferential side of the support platform 2, and the fixing mechanism 3 can be moved in a direction approaching or separating from the workpiece 4 to be inspected by rotating the fixing mechanism 3. For example, the fixing mechanism 3 is rotated clockwise, the fixing mechanism 3 can move towards the direction close to the workpiece 4 to be checked so as to clamp the workpiece 4 to be checked, the fixing mechanism 3 is rotated anticlockwise, the fixing mechanism 3 can move towards the direction far away from the workpiece 4 to be checked, and then an operator can take down the workpiece 4 to be checked from the supporting platform 2.

In this embodiment, the pressing amount of the fixing mechanism 3 can be controlled through the rotation fixing mechanism 3, compared with the existing elbow clamp structure, the pressing force is larger, the problem of failure damage caused by insufficient pressing force can be avoided, the fixing structure 23 on the support platform 2 is matched, the workpiece 4 to be checked is firmly fixed on the support platform 2, and the checking work is convenient for operators.

Optionally, in this embodiment, it has been mentioned that the workpiece 4 to be verified is a gear ring of a differential mechanism, the gear ring of the differential mechanism has a spindle hole, a horizontally arranged pin shaft is disposed on the supporting platform 2, a pin shaft groove corresponding to the pin shaft is disposed on an end surface of the spindle hole, and the gear ring of the differential mechanism can be circumferentially fixed by matching the pin shaft with the pin shaft groove.

Alternatively, in this embodiment, the fixing structure 23 may be a tooth cog, a boss, or the like.

According to the verification tool provided by the embodiment of the utility model, the base 1 is provided with the supporting seat 15 corresponding to the fixing mechanism 3; the fixing mechanism 3 comprises a sliding piece 31, a first rotating rod 32, a first elastic piece and a pressing component 33; the pressing component 33 is connected to the sliding piece 31, and the pressing component 33 is used for pressing the workpiece 4 to be checked; the sliding piece 31 is slidably connected to the supporting seat 15, and the first elastic piece is disposed between the sliding piece 31 and the supporting seat 15 and is used for supporting the sliding piece 31; the first rotating rod 32 is rotatably connected with the supporting seat 15, a first wedge-shaped surface is arranged on the side wall of the first rotating rod 32, a second wedge-shaped surface corresponding to the first wedge-shaped surface is arranged on the sliding piece 31, and the first wedge-shaped surface and the second wedge-shaped surface are propped against each other.

In this embodiment, for convenience of description, one side of the base 1 is lower, and the other side is upper.

In the present embodiment, the supporting seat 15 is disposed on the base 1 for mounting the fixing mechanism 3. In this embodiment, in order to ensure stability of the workpiece 4 to be checked, a plurality of fixing mechanisms 3 may be provided, and correspondingly, the supporting seats 15 and the fixing mechanisms 3 are in one-to-one correspondence, that is, the number of the supporting seats 15 is the same as that of the fixing mechanisms 3.

Preferably, in this embodiment, there are two fixing mechanisms 3, and the two fixing mechanisms 3 are located on the same diameter of the gear ring of the differential, so as to ensure stability of the gear ring of the differential, and avoid damage to the fixing mechanisms 3 caused by unbalanced stress.

In the present embodiment, the fixing mechanism 3 includes a slider 31, a first rotating lever 32, a first elastic member, and a pressing assembly 33 (part of the structure of the fixing mechanism 3 is not shown in the drawings). The sliding member 31 is slidably connected to the supporting seat 15, for example, a sliding rail is disposed on the supporting seat 15, and the sliding member 31 is slidably connected to the supporting seat 15 by being matched with the sliding rail. The pressing component 33 is used for pressing the workpiece with verification, and the pressing component 33 is arranged on the sliding piece 31, and the sliding piece 31 is connected to the supporting seat 15 in a sliding manner. When the sliding member 31 is slid downward, the pressing assembly 33 can be moved in a direction approaching the workpiece 4 to be inspected; and when the slider 31 is slid upward, the pressing assembly 33 can be moved in a direction away from the workpiece 4 to be inspected. In this embodiment, the first elastic member is disposed between the supporting seat 15 and the sliding member 31 and is used for supporting the supporting seat 15, and when the sliding member 31 is slid downward, i.e. the sliding member 31 is pressed downward, the first elastic member is compressed. And when no pressing force is applied to the slider 31, the first elastic member can rebound the slider 31. Through setting up first elastic component, can make slider 31 "float" on supporting seat 15, can avoid before using check-up frock at every turn, need mention slider 31 earlier, improve work efficiency. The first rotating rod 32 is rotatably connected to the support base 15, and the sliding member 31 can be depressed by rotating the first rotating rod 32.

Specifically, a first wedge surface is provided on the side wall of the first rotating lever 32, a second wedge surface is provided on the sliding member 31, the first wedge surface corresponds to the second wedge surface, and after assembly, the first wedge surface and the second wedge surface are abutted against each other.

When the workpiece 4 to be verified is required to be clamped in use, the first rotary rod 32 is rotated according to the first direction, the sliding piece 31 slides downwards under the cooperation of the first wedge-shaped surface and the second wedge-shaped surface, and the pressing component 33 is driven to press the workpiece 4 to be verified. When the workpiece 4 to be inspected needs to be removed, the first rotating rod 32 is rotated in the second direction, and at this time, the first rotating rod 32 no longer applies a pressing force to the slider 31; meanwhile, the slider 31 is restored by the first elastic member.

Wherein the first direction and the second direction are opposite. If the first direction is clockwise, the second direction is counterclockwise.

In this embodiment, alternatively, wedge-shaped protrusions are provided on both the first rotating lever 32 and the slider 31, and the first wedge-shaped surface and the second wedge-shaped surface are formed on the wedge-shaped protrusions.

In this embodiment, preferably, the first elastic member is a spring.

Alternatively, in this embodiment, the elastic member may be rubber or the like having elasticity.

Alternatively, in this embodiment, the first rotating rod 32 may be further configured as a threaded rod, an internal threaded hole corresponding to the first rotating rod 32 is provided on the supporting seat 15, after the assembly, the first rotating rod 32 is screwed into the internal threaded hole, and by screwing the first rotating rod 32, the first rotating rod 32 can be moved along the axial direction of the internal thread, so that the sliding member 31 can be pushed down.

According to the verification tool provided by the embodiment of the utility model, the supporting seat 15 is provided with the limit screw, the end face of the first rotary rod 32 is provided with the first screw hole corresponding to the limit screw, and the limit screw and the first screw hole are formed in the end face of the first rotary rod.

In this embodiment, when in use, in order to enable the first rotating rod 32 to drive the sliding member 31 to slide downwards when rotating, it needs to be ensured that the first rotating rod 32 cannot generate upward axial displacement under the action of the first wedge surface and the second wedge surface in the rotating process, and for this purpose, in this embodiment, the supporting seat 15 is provided with a limit screw, the end surface of the first rotating rod 32 is provided with a first screw hole matched with the limit screw, and the first rotating rod 32 is rotationally connected to the supporting seat 15 through the cooperation of the first screw hole and the limit screw.

Preferably, in the present embodiment, the first screw hole is provided on the lower end surface of the first rotating lever 32.

Further, in the present embodiment, since the support base 15 is engaged with the first screw hole through the engagement of the limit screw and the first rotating rod 32, a larger pressing amount can be obtained when the sliding member 31 is pressed down by rotating the first rotating rod 32.

Alternatively, in this embodiment, a jack may be further disposed on the supporting seat 15, an annular groove is disposed on an inner wall of the jack, and the first rotating rod 32 is rotatably connected in the jack, and a protrusion corresponding to the annular groove is disposed on a side wall of the first rotating rod 32. When assembled, the first rotary rod 32 is rotatably connected in the insertion hole, and the protrusion is positioned in the annular groove, which can also realize the rotary connection of the first rotary rod 32 and the supporting seat 15.

In the present embodiment, the connection manner between the first rotating rod 32 and the supporting seat 15 is not limited to the above two connection manners, but no matter how the first rotating rod 32 is matched with the supporting seat 15, the following needs to be ensured: the first rotating rod 32 needs to be kept axially stationary during the rotation of the first rotating rod 32 when pressing the workpiece 4 to be inspected, or the first rotating rod 32 can only move downward during the rotation of the first rotating rod 32 when pressing the workpiece 4 to be inspected.

According to the verification tool provided by the embodiment of the utility model, the sliding piece 31 is provided with the first through hole 311, the sliding piece 31 is sleeved on the supporting seat 15 through the first through hole 311, and the sliding piece 31 and the supporting seat 15 can relatively rotate; a limiting component is disposed between the supporting seat 15 and the first through hole 311, and the limiting component is used for limiting the rotation angle of the sliding member 31.

In this embodiment, the sliding member 31 is provided with a first through hole 311, and the sliding member 31 is sleeved on the supporting seat 15 through the first through hole 311, so that the sliding member 31 can slide up and down on the supporting seat 15. Meanwhile, it is preferable that the first through hole 311 is a circular hole, and a cylindrical support shaft is provided on the support base 15 so that the slider 31 can also rotate on the support base 15 at the same time.

In this embodiment, since the sliding member 31 can rotate on the supporting seat 15, and the pressing component 33 is connected with the sliding member 31, that is, the sliding member 31 can drive the pressing component 33 to rotate, after the use is completed, or before the use, the pressing component 33 can be taken away from the area of the supporting platform 2 by rotating the sliding member 31, so that the workpiece 4 to be verified can be placed conveniently, or removed.

In this embodiment, in order to prevent the sliding member 31 from rotating along with the first rotating rod 32 during the process of rotating the first rotating rod 32 to press down the sliding member 31, preferably, a limiting component is further disposed between the inner wall of the first through hole 311 and the supporting shaft of the supporting seat 15, where the limiting component is used to limit the rotation angle of the sliding member 31, that is, after the sliding member 31 drives the pressing component 33 to rotate to a position directly above the supporting platform 2, the sliding member 31 does not rotate under the action of the limiting component.

Specifically, the limiting component includes a bump disposed on an outer wall of the supporting seat 15, and a groove disposed on an inner wall of the first through hole 311; the grooves are disposed corresponding to the protrusions, and the width of the grooves is greater than the width of the protrusions in the rotation direction of the slider 31.

In this embodiment, the limiting component includes a bump disposed on the outer wall of the supporting seat 15 and a groove disposed on the inner wall of the first through hole 311, after the assembly, the bump is located in the groove, and when the sliding member 31 is rotated until the bump abuts against the side wall of the groove, the sliding member 31 cannot rotate any more.

Alternatively, the width of the groove is also larger than the width of the bump along the axial direction of the groove in the first through hole 311, so that the sliding member 31 can slide up and down on the supporting seat 15.

Alternatively, in this embodiment, the groove may be further disposed on the outer wall of the supporting seat 15, and the bump may be further disposed on the inner wall of the first through hole 311.

Alternatively, in this embodiment, the sliding member 31 is a sleeve. The supporting shaft is a hollow shaft, and the limit screw is arranged at the lower end of the hollow shaft. Wedge-shaped protrusions on the slider 31 are provided on the inner wall of the first through hole 311. Wedge-shaped protrusions on the first rotating lever 32 are provided at the side walls of the first rotating lever 32.

During assembly, the first spring (the first elastic piece) is sleeved on the supporting shaft, the sleeve is sleeved on the supporting shaft, the lower end of the wedge-shaped protrusion in the first through hole 311 abuts against the first spring, one end of the first rotating rod 32 provided with the first screw hole sequentially penetrates through the first through hole 311 and the supporting shaft to be connected with the limit screw at the bottom of the supporting shaft, and the wedge-shaped protrusion on the first rotating rod 32 abuts against the wedge-shaped protrusion in the first through hole 311.

When the checking fixture is used, the first rotary rod 32 is rotated, the sleeve firstly rotates along with the first rotary rod 32, and after the sleeve rotates until the convex block abuts against the inner wall of the groove, the sleeve does not rotate any more, at the moment, the first rotary rod 32 is continuously rotated, the sleeve starts to move downwards under the action of the first wedge-shaped surface and the second wedge-shaped surface, and the pressing assembly 33 is driven to move downwards together so as to press the workpiece 4 to be checked.

After use, the first rotary lever 32 is rotated in the opposite direction, and the sleeve is reset to "float" under the action of the first spring.

Optionally, in order to facilitate rotating the first rotating rod 32, a handle is further disposed at an end of the first rotating rod 32 away from the first screw hole.

Alternatively, in this embodiment, the first spring may also be sleeved outside the sleeve.

In the verification tool provided by the embodiment of the utility model, the compression assembly 33 includes a compression screw 331 and a second mounting hole 332 disposed on the sliding member 31; the compression screw 331 is screwed on the second mounting hole 332 in cooperation with a nut.

In this embodiment, the compression assembly 33 includes a compression screw 331 and a second mounting hole 332 disposed on the sliding member 31, the compression screw 331 is used for compressing the workpiece 4 to be verified, and the second mounting hole 332 is matched with the compression screw 331, so that the distance between the compression screw 331 and the workpiece 4 to be verified can be adjusted, and the applicability of the verification tool in this embodiment is improved.

The verification tool provided by the embodiment of the utility model, the supporting platform 2 comprises a main body 21 and a supporting piece 22; the main body 21 is provided with a first mounting hole 211, and the supporting piece 22 is provided with a first end and a second end which are opposite; the first end of the supporting member 22 is disposed in the first mounting hole 211, and the second end of the supporting member 22 is provided with the fixing structure 23.

The verification tool provided in this embodiment, the supporting platform 2 includes a main body 21 and a supporting member 22, and the supporting member 22 is disposed in the first mounting hole 211. For convenience of description, the support 22 has opposite first and second ends, the first end of the support 22 is inserted into the first mounting hole 211, the second end of the support 22 protrudes from the first mounting hole 211, and the fixing structure 23 is disposed at the second end of the support 22.

Alternatively, in the present embodiment, the support 22 is a support shaft.

Alternatively, in this embodiment, the support 22 may also be a support rod.

In this embodiment, the supporting member 22 is a supporting shaft, the second end of the supporting shaft is in a stepped structure, for convenience of description, the supporting shaft is divided into a first section and a second section according to the sequence from top to bottom, a pin shaft hole is provided at the connection of the first section and the second section, the pin shaft hole is perpendicular to the supporting shaft, the pin shaft is provided in the pin shaft hole, and a pin shaft groove provided for avoiding the pin shaft is also provided on the end surface of the second section.

When the differential gear is used, the mandrel hole of the differential gear ring is inserted into the first section, and the pin shaft groove on the end surface of the mandrel hole is matched with the pin shaft.

Preferably, in this embodiment, in order to improve the applicability of the verification tool, the support member 22 is floatingly disposed in the first mounting hole 211.

Specifically, the support platform 2 further includes a second elastic member 24; the second elastic member 24 is disposed in the first mounting hole 211; the support 22 is connected to the second elastic member 24, and the second elastic member 24 serves to float the support 22 within the first mounting hole 211.

In this embodiment, the second elastic member 24 is disposed in the first mounting hole 211, so that the supporting member 22 "floats" in the first mounting hole 211, so that the supporting member 22 can adapt to the workpieces 4 to be verified with different sizes, thereby improving the applicability of the verification tool.

Alternatively, one end of the second elastic member 24 abuts against the bottom wall of the first mounting hole 211, and the other end abuts against the support member 22.

Alternatively, in this embodiment, the second elastic member 24 is a spring.

Alternatively, in this embodiment, the second elastic member 24 may also be rubber or the like having elasticity.

In this embodiment, in order to save space, a concave hole is formed at one end of the second section of the support shaft away from the first section, one end of the second elastic member 24 abuts against the bottom wall of the first mounting hole 211, and the other end abuts against the bottom wall of the concave hole.

Optionally, in this embodiment, the supporting member 22 is a supporting shaft, which may rotate in the first mounting hole 211, and in order to avoid the supporting shaft rotating, a first limiting groove is formed on a side wall of the supporting shaft, the first limiting groove extends along an axial direction of the supporting shaft, the inner wall of the first mounting hole 211 is disposed on a pin corresponding to the first limiting groove, the pin can be detached from the outside of the first mounting hole 211, and the pin can also avoid the supporting shaft from falling out of the first mounting hole 211 while circumferentially limiting the supporting shaft.

When the supporting member 22 is a prismatic supporting rod, the problem of rotation of the supporting rod can be solved by only arranging the shape of the first mounting hole 211 corresponding to the supporting rod.

The embodiment of the utility model provides a checking tool, wherein the supporting platform 2 further comprises a fixing assembly 25; the fixing component 25 is disposed on the main body 21, and the fixing component 25 is used for fixing the support 22.

In the present embodiment, the fixing assembly 25 is used to fix the support shaft in both the circumferential and axial directions.

Specifically, the fixing assembly 25 includes a pushing member 251 and a second rotating rod 252; a sliding hole 212 communicated with the first mounting hole 211 is formed in the side wall of the main body 21, and at least the inner wall of one end, far away from the first mounting hole 211, of the sliding hole 212 is provided with a first thread; the side wall of the second rotating rod 252 is provided with a second thread corresponding to the first thread, the pushing piece 251 and the second rotating rod 252 are both arranged in the sliding hole 212, one end of the pushing piece 251 can extend into the first mounting hole 211 from the communication position of the sliding hole 212 and the first mounting hole 211, the other end of the pushing piece is propped against the second rotating rod 252, and the second rotating rod 252 is screwed in the sliding hole 212 through the cooperation of the second thread and the first thread.

The verification tool provided by the embodiment of the utility model, the fixing assembly 25 comprises a pushing piece 251 and a second rotating rod 252. A slide hole 212 communicating with the first mounting hole 211 is formed in a side wall of the main body 21. The pushing member 251 and the second rotating lever 252 are both disposed in the slide hole 212. The second rotating rod 252 is mainly used for pushing the pushing piece 251, and the pushing piece 251 can extend out of the sliding hole 212 into the first mounting hole 211 under the action of the second rotating rod 252.

In this embodiment, at least the inner wall of the end of the sliding hole 212 far away from the first mounting hole 211 is provided with a first thread, that is, the sliding hole 212 may be provided with a first thread entirely, or may be provided with a first thread only at the end far away from the mounting block, the side wall of the second rotating rod 252 is provided with a second thread, the second thread corresponds to the first thread, the second rotating rod 252 is screwed into the sliding hole 212 through the cooperation of the first thread and the second thread, and the second rotating rod 252 can be moved along the axial direction of the sliding hole 212 by screwing the second rotating rod 252.

In use, by screwing the second rotary rod 252, the second rotary rod 252 pushes the pushing member 251 to extend into the first mounting hole 211 and connect with the supporting member 22 to fix the supporting member 22.

Optionally, the pushing member 251 abuts against the supporting member 22 to fix the supporting member 22, such that the supporting member 22 cannot rotate and cannot move up and down in the axial direction.

In order to improve the fixing effect, the verification tool according to the embodiment of the present utility model may optionally further include a third wedge surface 221 on a side wall of the support member 22, and a fourth wedge surface 2511 matching with the third wedge surface 221 is provided on an end of the pushing member 251 away from the second rotating rod 252.

In this embodiment, the side wall of the supporting member 22 is provided with a third wedge surface 221, one end of the pushing member 251 away from the second rotating rod 252 is provided with a fourth wedge surface 2511, the fourth wedge surface 2511 is disposed corresponding to the third wedge surface 221, and when the pushing member 251 extends into the first mounting hole 211, the third wedge surface 221 abuts against the fourth wedge surface 2511, so that the supporting member 22 cannot move up and down along the axial direction.

In this embodiment, preferably, in order to avoid the effect of the rotation of the pushing member 251 in the sliding hole 212 on the engagement of the third wedge surface 221 and the fourth wedge surface 2511, a second limit groove is provided on the sidewall of the pushing member 251, and a pin engaged with the second limit groove is provided on the inner wall of the sliding hole 212, and after assembly, the pin is located in the second limit groove.

In this embodiment, the pin is matched with the second limiting groove, so that the pushing member 251 cannot rotate in the sliding hole 212.

In this embodiment, one end of the second rotating rod 252 is provided with a handle, the other end is a spherical surface, and one end of the spherical surface abuts against the pushing member 251, so as to reduce friction and improve the service life of the checking fixture.

Alternatively, in the present embodiment, the pushing member 251 is a pushing shaft.

Alternatively, in the present embodiment, the pushing member 251 may also be a pushing rod.

According to the verification tool provided by the embodiment of the utility model, optionally, the third wedge-shaped surface 221 is further provided with a third limit groove, the end surface of the pushing piece 251 far away from the second rotary rod 252 is provided with a limit protrusion, the limit protrusion is correspondingly arranged with the third limit groove, and the limit protrusion is matched with the third limit groove, so that the supporting piece 22 can be further fixed in the circumferential direction.

The base 1 of the verification tool provided by the embodiment of the utility model comprises a bottom plate 12 and a supporting plate 11, and the supporting plate 11 is rotatably connected to the base 1.

In the present embodiment, the base 1 includes two parts of the bottom plate 12 and the support plate 11, and the support plate 11 is rotatably connected to the bottom plate 12, and in use, an operator can observe the back dead zone of the workpiece 4 to be inspected by rotating the support plate 11.

In this embodiment, the supporting platform 2, the fixing mechanism 3 and the supporting seat 15 are all disposed on the supporting plate 11.

In the present embodiment, a rotation shaft 13 is provided between the support plate 11 and the bottom plate 12, and the rotational connection between the support plate 11 and the bottom plate 12 is achieved by rotation.

Specifically, the bottom plate 12 is provided with a bearing 14, one end of the rotating shaft 13 is connected to the supporting plate 11, and the other end is connected to the bearing 14.

Optionally, the base 1 further includes a plug pin, corresponding holes are formed in the base 1 and the support plate 11, when the plug pin is inserted into the holes in the support plate 11 and the base 1, the support plate 11 cannot rotate, and when the plug pin is pulled out, the support plate 11 can rotate relative to the base 1.

When the checking tool provided by the embodiment of the utility model is used, the workpiece 4 to be checked is taken as a differential gear as an example.

Preferably, the handles on the first rotary rod 32 and the second rotary rod 252 are rotated to move the pressing assembly 33 away from the region of the support platform 2, and at the same time, the pushing shaft (pushing member 251) is separated from the support shaft (support member 22); thereafter, the differential gear is placed on the main body 21, and the differential gear spindle hole is aligned with the support shaft, the spindle hole is connected with the support shaft, and the position of the differential gear is adjusted so that the pin shaft can be perfectly fitted with the pin shaft groove. Thereafter, the handle on the first rotary rod 32 is turned to return the pressing assembly 33 to the area of the support platform 2, and the differential gear is pressed down, and the handle on the second rotary rod 252 is turned to push the pushing shaft against the support shaft. Thus, the differential gear is fixed and completed, and an operator can perform verification work.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the communication may be direct or indirect through an intermediate medium, or may be internal to two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims (10)

1. A verification tool for clamping a workpiece (4) to be verified, characterized in that the verification tool comprises: a base (1), a supporting platform (2) and a fixing mechanism (3);

the support platform (2) is arranged on the base (1), and a fixing structure (23) used for being matched with the workpiece (4) to be verified is arranged on the support platform (2);

the fixing mechanism (3) is arranged on the base (1), the fixing mechanism (3) is arranged on the periphery of the supporting platform (2), the fixing mechanism (3) is rotationally connected with the base (1), and the workpiece (4) to be verified can be pressed by rotating the fixing mechanism (3).

2. The checking fixture according to claim 1, characterized in that the base (1) is provided with a supporting seat (15) corresponding to the fixing mechanism (3);

the fixing mechanism (3) comprises a sliding piece (31), a first rotating rod (32) and a pressing assembly (33);

the sliding piece (31) is connected to the supporting seat (15) in a sliding manner, the pressing component (33) is connected to the sliding piece (31), and the pressing component (33) is used for pressing the workpiece (4) to be checked;

the first rotating rod (32) is rotationally connected with the supporting seat (15), a first wedge-shaped surface is arranged on the side wall of the first rotating rod (32), a second wedge-shaped surface corresponding to the first wedge-shaped surface is arranged on the sliding piece (31), and the first wedge-shaped surface and the second wedge-shaped surface are propped against each other.

3. The checking fixture according to claim 2, wherein the fixing means (3) further comprise a first elastic element;

the first elastic piece is arranged between the sliding piece (31) and the supporting seat (15) and is used for supporting the sliding piece (31).

4. The checking fixture according to claim 2, wherein the supporting seat (15) is provided with a limit screw, the end face of the first rotating rod (32) is provided with a first screw hole corresponding to the limit screw, and the limit screw is connected with the first screw hole.

5. The checking fixture according to claim 2, wherein a first through hole (311) is formed in the sliding member (31), the sliding member (31) is sleeved on the supporting seat (15) through the first through hole (311), and the sliding member (31) and the supporting seat (15) can rotate relatively;

a limiting component is arranged between the supporting seat (15) and the first through hole (311), and the limiting component is used for limiting the rotation angle of the sliding piece (31).

6. The checking fixture according to claim 5, wherein the limiting assembly comprises a projection arranged on the outer wall of the supporting seat (15) and a groove arranged on the inner wall of the first through hole (311);

the grooves are arranged corresponding to the protruding blocks, and the width of each groove is larger than that of each protruding block along the rotation direction of the sliding piece (31).

7. The checking fixture according to claim 1, characterized in that the support platform (2) comprises a main body (21) and a support (22);

-said body (21) is provided with a first mounting hole (211), said support (22) having opposite first and second ends;

the first end of the supporting piece (22) is arranged in the first mounting hole (211), and the second end of the supporting piece (22) is provided with the fixing structure (23).

8. The checking fixture according to claim 7, characterized in that said support platform (2) further comprises a second elastic member (24);

the second elastic piece (24) is arranged in the first mounting hole (211);

the support member (22) is connected to the second elastic member (24), and the second elastic member (24) is configured to float the support member (22) within the first mounting hole (211).

9. The checking fixture according to claim 8, characterized in that said support platform (2) further comprises a fixing assembly (25);

the fixing component (25) is arranged on the main body (21), and the fixing component (25) is used for fixing the supporting piece (22);

the fixed assembly (25) comprises a pushing piece (251) and a second rotating rod (252);

a sliding hole (212) communicated with the first mounting hole (211) is formed in the side wall of the main body (21), and a first thread is arranged on the inner wall of at least one end, far away from the first mounting hole (211), of the sliding hole (212);

the side wall of second rotary rod (252) be provided with the second screw thread that the first screw thread corresponds, impeller (251) with second rotary rod (252) all set up in slide hole (212), just the one end of impeller (251) can by slide hole (212) with the intercommunication department of first mounting hole (211) stretches into in first mounting hole (211) and with support piece (22) link to each other, the other end of impeller (251) with second rotary rod (252) offset, second rotary rod (252) through the second screw thread with first screw thread cooperation screw in slide hole (212).

10. The checking fixture according to claim 9, characterized in that the side wall of the support member (22) is provided with a third wedge surface (221), and the end of the pushing member (251) away from the second rotating rod (252) is provided with a fourth wedge surface (2511) matching with the third wedge surface (221).