CN218697994U - Positioning tool of gear detector - Google Patents

Abstract

The utility model discloses a positioning tool of a gear detector, which belongs to the technical field of gear processing, and the utility model discloses a positioning assembly is arranged on a base, so that gears with different specifications and sizes can be positioned under the action of the positioning assembly, so as to detect the gears with different specifications and sizes, thereby greatly increasing the application range of the prior gear detectors; under the combined action of the screw rod, the first sleeve block, the second sleeve block, the first connecting plate and the second connecting plate, the clamping plate can form a positioning sleeve with different diameters according to the actual inner diameter of the gear to be measured, and the gears with different specifications and sizes are placed on the positioning sleeve to detect the gears; be provided with spacing subassembly through the top at the grip block for under spacing subassembly's effect, be used for restricting the gear and produce the condition of rocking at the in-process that detects, with further can improve the precision that detects the gear.

Description

Positioning tool of gear detector

Technical Field

The utility model relates to a gear machining technical field, in particular to gear detector's location frock.

Background

The gear is extremely extensive in the application in mechanical transmission and whole mechanical field, and need detect the gear in the gear production process, consequently can use the gear detector to judge whether up to standard gear.

Some existing gear detectors, such as application No.: 202121436326.6, filing date: 2021-06-28 proposes a positioning tool of a gear detector, including the base and fixing device and rotating device that set gradually on the base, fixing device includes the first support, the first backup pad, first fixed subassembly and the fixed subassembly of second, first support one side is provided with two first backup pads, be provided with the first fixed subassembly on one first backup pad, be provided with the fixed subassembly of second on another first backup pad, the first fixed subassembly includes rotatory hand wheel, the screw lead screw, first fixed block, first pivot and fixed sleeve, rotatory hand wheel bottom is provided with the screw lead screw, the one end that the rotatory hand wheel was kept away from to the screw lead screw runs through first backup pad and is connected with first fixed block, second pivot cover is equipped with gear element, compress tightly the subassembly and include cavity fixed block, the spring, piston plate and compress tightly the pole. The device can fix the gear, prevents that the gear from producing when detecting and rocking, improves and detects the precision.

Above disclosed technical scheme though can fix the gear, prevent that the gear from producing when detecting and rocking, improve and detect the precision, but because the second pivot is fixed the setting on the second fixed block, and do not set up the structure that can adjust the diameter size of second pivot in the second pivot, and then lead to this type of gear detector only to fix a position the gear of unified specification size, can not fix a position the gear of different specification size, thereby caused this type of gear detector and then can receive certain limitation at the process of using.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a location frock of gear detector can fix a position the gear of different specification and dimension size to detect the gear of different specification and dimension size, great increase the application range of current some gear detectors.

For solving the technical problem, the utility model discloses a technical scheme:

a positioning tool of a gear detector comprises

A base;

the base is provided with a positioning assembly through a screw and used for positioning the gear;

the positioning assembly comprises a positioning plate, a cylindrical barrel is fixedly arranged on the positioning plate, a spiral rod is rotationally arranged in the cylindrical barrel, one end of the spiral rod extends to the outside of the cylindrical barrel, a plurality of limiting blocks are fixedly arranged on the outer circumferential surface of the lower portion of the cylindrical barrel, a first sleeve block is sleeved on each limiting block, a first connecting plate is hinged to each first sleeve block, a second sleeve block is sleeved on the spiral rod in a threaded manner, a second connecting plate is hinged to each second sleeve block, the first connecting plate and the second connecting plate are hinged in an X shape, the outer side ends of the first connecting plate and the second connecting plate are hinged to a clamping plate through hinge posts, a guide groove is formed in the clamping plate, and hinge post sliding pliers are arranged in the guide groove;

a limiting assembly is arranged above the clamping plate through a first mounting frame and used for limiting the situation that the gear shakes in the detection process;

one side of the limiting assembly is provided with a detection assembly for detecting the gear.

According to some embodiments, the top of the screw rod is provided with a first rotating handle.

According to some embodiments, the bottom of the screw rod is fixedly provided with a circular block, the cylindrical barrel is provided with a circular groove, and the circular block is rotatably clamped in the circular groove.

According to some embodiments, the clamping plate is of arcuate configuration.

According to some embodiments, the limiting assembly comprises an air cylinder, the output end of the air cylinder penetrates through the first mounting frame and is connected with a moving block, a first sliding groove is formed in the lower portion of the moving block, limiting plates are arranged on two sides of the first sliding groove in a sliding mode, a first driving assembly is arranged in the first sliding groove and is connected with the limiting plates and used for forming clamping sleeves with different diameters according to corresponding clamping plate combinations so as to adjust the distance between the corresponding limiting plates.

According to some embodiments, the first driving assembly comprises a bidirectional threaded rod, the bidirectional threaded rod is rotatably arranged in the first sliding groove, the limiting plate is sleeved on the bidirectional threaded rod in a threaded manner, one end of the bidirectional threaded rod penetrates through the moving block, and a second rotating handle is fixedly sleeved on the outer portion of the moving block.

According to some embodiments, the detection assembly comprises a second mounting frame, the second mounting frame is arranged on the base, a first motor is arranged on the second mounting frame, an output end of the first motor penetrates through the second mounting frame and is connected with a rotating shaft, the rotating shaft is rotatably arranged on the base through a bearing, and a detection gear is fixedly sleeved on the rotating shaft and is used for being meshed with a gear to be detected and detecting the gear.

According to some embodiments, a second sliding groove is formed in the base, a sliding block is arranged in the second sliding groove in a sliding mode, the upper portion of the sliding block is fixedly connected with the lower portion of the second mounting frame, a second driving assembly is arranged in the second sliding groove, and the second driving assembly is connected with the sliding block.

According to some embodiments, the second drive assembly includes one-way threaded rod, one-way threaded rod rotates to be located in the second spout, the threaded sleeve is equipped with the slider on the one-way threaded rod, one end of one-way threaded rod extends to the outside of base to be connected with the second motor.

According to some embodiments, the second runner and the slider are each in a zig-zag configuration.

Has the advantages that:

1. through being provided with locating component on the base for under locating component's effect, can fix a position the gear of different specification and dimension sizes, detect the gear of different specification and dimension sizes, great increase the application range of current some gear detectors.

2. Through under the effect that combines together at hob, first nest of blocks, second nest of blocks, first connecting plate and second connecting plate, can form a position sleeve that can measure the actual internal diameter of gear according to the area with the grip block, different diameters size places the gear of different specification and dimension size on this position sleeve to detect the gear.

3. Be provided with spacing subassembly through the top at the grip block for under spacing subassembly's effect, be used for restricting the gear and produce the condition of rocking at the in-process that detects, with further can improve the precision that detects the gear.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of the positioning assembly of the present invention;

FIG. 3 is a perspective cross-sectional view of the positioning plate, the cylindrical barrel and the screw rod of the present invention;

fig. 4 is a schematic view of the clamping plate of the present invention;

fig. 5 is a schematic view of the limiting assembly of the present invention;

fig. 6 is a bottom view of the limiting assembly of the present invention;

fig. 7 is a perspective sectional view of the base and the detecting assembly of the present invention.

In the figure, 1 a base, 11 a second sliding groove, 2 a positioning component, 21 a positioning plate, 22 a cylindrical barrel, 221 a limiting block, 23 a screw rod, 231 a first rotating handle, 24 a first sleeve block, 25 a first connecting plate, 26 a second sleeve block, 27 a second connecting plate, 28 a hinge column, 29 a clamping plate, 291 a guide groove, 3 a first mounting frame, 4 a limiting component, 41 a cylinder, 42 a moving block, 43 a first sliding groove, 44 a limiting plate, 45 a first driving component, 451 a two-way threaded rod, 452 a second rotating handle, 5 a detection component, 51 a second mounting frame, 52 a first motor, 53 a rotating shaft, 54 a detection gear, 55 a sliding block, 56 a second driving component, 561 a one-way threaded rod and 562 a second motor.

Detailed Description

This section will describe in detail the embodiments of the present invention, the preferred embodiments of which are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can visually and vividly understand each technical feature and the whole technical solution of the present invention, but it cannot be understood as a limitation to the scope of the present invention.

In the description of the present invention, it should be understood that the directional descriptions, such as the directions or positional relationships indicated by upper, lower, front, rear, left, right, etc., are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but not for indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.

In the description of the present invention, the terms greater than, less than, exceeding, etc. are understood to exclude the number, and the terms above, below, inside, etc. are understood to include the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 7, a positioning tool of a gear detector includes a base 1, a positioning assembly 2, a first mounting frame 3, a limiting assembly 4, and a detection assembly 5.

The base 1 is provided with a positioning component 2 through a screw for positioning a gear, the positioning component 2 comprises a positioning plate 21, a cylindrical barrel 22 is fixedly arranged on the positioning plate 21, a spiral rod 23 is rotatably arranged in the cylindrical barrel 22, one end of the spiral rod 23 extends to the outside of the cylindrical barrel 22, a plurality of limiting blocks 221 are fixedly arranged on the outer circumferential surface of the lower part of the cylindrical barrel 22, a first sleeve block 24 is sleeved on each limiting block 221, a first connecting plate 25 is hinged on the first sleeve block 24, a second sleeve block 26 is sleeved on the spiral rod 23 in a threaded manner, a second connecting plate 27 is hinged on the second sleeve block 26, the first connecting plate 25 and the second connecting plate 27 are hinged in an X shape, the outer side ends of the first connecting plate 25 and the second connecting plate 27 are hinged with a clamping plate 29 through hinge columns 28, and a guide groove 291 is formed in the clamping plate 29, articulated post 28 slip pincers locate in guide way 291 for under the effect that hob 23, first nest of blocks 24, second nest of blocks 26, first connecting plate 25 and second connecting plate 27 combined together, can form a locating sleeve that can be according to the actual internal diameter of taking the measuring gear with grip block 29, different diameters size, place the gear of different specification size on this locating sleeve, in order to detect the gear, the effect of fixing a position the gear of different specification size has been realized, great increase the application range of some present gear detectors, and fixed being provided with a plurality of stopper 221 on the outer circumferential surface of cylinder 22 lower part, be used for restricting first nest of blocks 24 and only can reciprocate, can not rotate.

After the gear to be detected is placed on the positioning plate 21 and sleeved on the clamping plate 29, when the inner diameter of the gear to be detected is larger, the screw rod 23 is screwed forward, the second sleeve block 26 moves downward along the height direction of the screw rod 23, at this time, because the first sleeve block 24 is limited by the positioning plate 21 and cannot move downward, and meanwhile, the first sleeve block 24 is limited by the corresponding limiting block 221 and cannot rotate, and in the process that the second sleeve block 26 moves downward, only the corresponding first connecting plate 25 and the corresponding second connecting plate 27 can be driven to move in an extending manner, the corresponding first connecting plate 25 and the corresponding second connecting plate 27 drive the corresponding clamping plate 29, and the corresponding hinge column 28 slides along the corresponding guide groove 291 until the circumferential surface of the corresponding clamping plate 29 completely contacts with the inner circumferential surface of the gear to be detected; when the inner diameter of the gear to be detected is small, firstly, the screw rod 23 needs to be reversely screwed, the second sleeve 26 moves downwards along the height direction of the screw rod 23, at this time, the first sleeve 24 cannot move downwards due to the limiting action of the positioning plate 21, meanwhile, the first sleeve 24 is also limited by the corresponding limiting block 221 and cannot rotate, during the downward movement of the second sleeve 26, only the corresponding first connecting plate 25 and the corresponding second connecting plate 27 can be driven to move in an extending manner, the corresponding first connecting plate 25 and the corresponding second connecting plate 27 drive the corresponding clamping plate 29, the corresponding hinge column 28 slides along the corresponding guide groove 291 until the corresponding clamping plate 29 is gradually closed, the gear to be detected can be sleeved on the corresponding clamping plate 29, after the gear to be detected is sleeved on the corresponding clamping plate 29, the screw rod 23 is positively screwed, the second sleeve 26 moves downwards along the height direction of the screw rod 23, at this time, because the first sleeve 24 is limited by the positioning plate 21, the gear to be detected cannot move downwards, at the same time, the first sleeve 24 is also limited by the corresponding sliding surface of the corresponding first sleeve 24, and the corresponding connecting plate 27 can drive the corresponding connecting plate 29 to move downwards, and the corresponding connecting plate 29, the corresponding connecting plate 29 can only drive the corresponding connecting plate 27 and the corresponding connecting plate 29 in the corresponding connecting plate 29, the corresponding connecting plate 26 can move.

The top of grip block 29 is provided with spacing subassembly 4 through first mounting bracket 3 for the condition that the restriction gear rocked in the in-process production that detects, make under spacing subassembly 4's effect, be used for restricting the gear and rock the condition in the in-process production that detects, with further can improve the precision that detects the gear.

One side of the limiting component 4 is provided with a detection component 5 for detecting the gear.

As shown in fig. 1, 2 and 3, the top of the screw 23 is provided with a first rotating handle 231, so that the screw 23 can be rotated by the first rotating handle 231.

As shown in fig. 3, a circular block 232 is fixedly disposed at the bottom of the screw rod 23, a circular groove is disposed on the cylindrical barrel 22, and the circular block 232 is rotatably clamped in the circular groove, so that under the action of the combination of the circular block 232 and the circular groove, the first rotating handle 231 can only drive the screw rod 23 to rotate, and the screw rod 23 cannot be taken out from the cylindrical barrel 22.

Referring to fig. 1 and 2, the clamping plate 29 is of an arc structure, so that the clamping plate 29 can be adapted to the inner diameter of the gear to be detected to position the gear to be detected.

With reference to fig. 1, fig. 5 and fig. 6, the limiting component 4 includes a cylinder 41, the output end of the cylinder 41 passes through the first mounting bracket 3, and is connected with a moving block 42, a first chute 43 has been seted up to the moving block 42 lower part, both sides of the first chute 43 all slide and are provided with a limiting plate 44, be provided with a driving component 45 in the first chute 43, the driving component 45 is connected with the limiting plate 44, a clamping sleeve with different diameters formed according to the combination of corresponding clamping plates 29, adjust the interval between corresponding limiting plates 44, make under the effect that cylinder 41, moving block 42 and limiting plate 44 combine together, can be with waiting to detect the gear location at the locating plate 21, the condition that the gear rocked when detecting has been avoided, through under such a mode, the lower surface of waiting to detect the gear can be laminated with the upper portion surface of locating plate 21 mutually.

After the gear to be detected is placed on the positioning plate 21 and sleeved on the clamping plate 29, the first rotating handle 231 rotates the screw rod 23, the second sleeve 26 moves downwards along the height direction of the screw rod 23, at this time, the first sleeve 24 is limited by the positioning plate 21 and cannot move downwards, meanwhile, the first sleeve 24 is limited by the corresponding limiting block 221 and cannot rotate, in the process that the second sleeve 26 moves downwards, only the corresponding first connecting plate 25 and the second connecting plate 27 can be driven to move in an extending manner, the corresponding first connecting plate 25 and the corresponding second connecting plate 27 drive the corresponding clamping plate 29, the corresponding hinge columns 28 slide along the corresponding guide grooves 291 until the circumferential surface of the corresponding clamping plate 29 is completely contacted with the inner circumferential surface of the gear to be detected, meanwhile, the air cylinders 41 push the moving blocks 42, and the moving blocks 42 drive the corresponding limiting plates 44 to be contacted with the upper surface of the gear to be detected until the gear to be detected is pushed to the lower surface of the gear to be detected can be contacted with the upper surface of the positioning plate 21.

Combine fig. 1, fig. 5 and fig. 6 show, first drive assembly 45 includes two-way threaded rod 451, two-way threaded rod 451 rotates and locates in first spout 43, the threaded sleeve is equipped with limiting plate 44 on two-way threaded rod 451, the movable block 42 is passed to the one end of two-way threaded rod 451, and the external fixation cover that extends to movable block 42 is equipped with second rotating handle 452, make under the effect that two-way threaded rod 451 and second rotating handle 452 combine together, the staff can be according to the corresponding size of waiting to detect the gear, adjust the interval between the corresponding limiting plate 44, make limiting plate 44 after adjusting can restrict the corresponding gear that waits to detect.

Wherein, the gear to be detected is placed on the positioning plate 21 and sleeved on the clamping plate 29, the screw rod 23 is rotated by the first rotating handle 231, the second sleeve 26 moves downwards along the height direction of the screw rod 23, at this time, because the first sleeve 24 is limited by the positioning plate 21 and cannot move downwards, and meanwhile, the first sleeve 24 is limited by the corresponding limiting block 221 and cannot rotate, in the process of moving the second sleeve 26 downwards, only the corresponding first connecting plate 25 and the second connecting plate 27 can be driven to move in an extending manner, the corresponding first connecting plate 25 and the corresponding second connecting plate 27 drive the corresponding clamping plate 29, the corresponding hinge column 28 slides along the corresponding guide groove 291 until the circumferential surface of the corresponding clamping plate 29 is completely contacted with the inner circumferential surface of the gear to be detected, meanwhile, the air cylinder 41 pushes the moving block 42, the moving block 42 drives the corresponding limiting plate 44 to be contacted with the upper surface of the gear to be detected until the gear to be detected is pushed to the lower surface of the gear to be detected can be contacted with the upper surface of the positioning plate 21, when a worker is contacted with the second limiting plate 44 by the forward rotating track of the first rotating handle 452, the sliding chute 451 is driven by the forward rotation of the second rotating handle 452; when the worker reversely drives the bidirectional threaded rod 451 to rotate by the second rotating handle 452, the corresponding restriction plate 44 slides along the track of the first sliding groove 43 and relatively moves away until the corresponding restriction plate 44 is adjusted to a proper position.

Referring to fig. 1 and 7, the detecting assembly 5 includes a second mounting bracket 51, the second mounting bracket 51 is disposed on the base 1, a first motor 52 is disposed on the second mounting bracket 51, an output end of the first motor 52 passes through the second mounting bracket 51 and is connected to a rotating shaft 53, the rotating shaft 53 is rotatably disposed on the base 1 through a bearing, and a detecting gear 54 is fixedly disposed on the rotating shaft 53 and is engaged with a gear to be detected and used for detecting the gear.

The first motor 52 drives the rotating shaft 53 to rotate, the rotating shaft 53 drives the detection gear 54 to rotate, and the detection gear 54 is meshed with the gear to be detected to detect the degree of meshing.

Continuing and referring to fig. 1 and 7, a second chute 11 is formed in the base 1, a sliding block 55 is slidably arranged in the second chute 11, the upper portion of the sliding block 55 is fixedly connected with the lower portion of the second mounting frame 51, a second driving assembly 56 is arranged in the second chute 11, and the second driving assembly 56 is connected with the sliding block 55, so that under the action of the second driving assembly 56, the second mounting frame 51 can be adjusted, and the gear to be detected can be adapted to different gears of various specifications and sizes.

Referring to fig. 7, the second driving assembly 56 includes a one-way threaded rod 561, the one-way threaded rod 561 is rotatably disposed in the second sliding slot 11, a sliding block 55 is threadedly sleeved on the one-way threaded rod 561, and one end of the one-way threaded rod 561 extends to the outside of the base 1 and is connected to a second motor 562.

When the second motor 562 drives the one-way threaded rod 561 to rotate in the forward direction, the slider 55 drives the second mounting frame 51 to slide leftwards in the second sliding groove 11 until the second mounting frame 51 is adjusted to a proper position.

To be further described, the second sliding slot 11 and the sliding block 55 are both in a shape like a Chinese character 'tu', so that the structures of the second sliding slot 11 and the sliding block 55 are matched.

The utility model discloses a working method as follows:

after the gear to be detected is placed on the positioning plate 21 and sleeved on the clamping plate 29, the screw rod 23 is rotated by the first rotating handle 231, the second sleeve 26 moves downwards along the height direction of the screw rod 23, at this time, the first sleeve 24 cannot move downwards due to the limiting action of the positioning plate 21, and meanwhile, the first sleeve 24 is also limited by the corresponding limiting block 221 and cannot rotate, in the process that the second sleeve 26 moves downwards, only the corresponding first connecting plate 25 and the second connecting plate 27 can be driven to move in an extending manner, the corresponding first connecting plate 25 and the second connecting plate 27 drive the corresponding clamping plate 29, the corresponding hinge columns 28 slide along the corresponding guide grooves 291 until the circumferential surface of the corresponding clamping plate 29 is completely contacted with the inner circumferential surface of the gear to be detected, and at the same time, the moving block 42 is pushed by the air cylinder 41, the moving block 42 drives the corresponding limiting plate 44 to contact with the upper surface of the gear to be detected until the gear to be detected is pushed to the position where the lower surface of the gear to be detected can be attached to the upper surface of the positioning plate 21, the worker drives the two-way threaded rod 451 to rotate through the second rotating handle 452, the corresponding limiting plate 44 slides along the track of the first sliding groove 43 and is relatively close to or relatively far away from the corresponding limiting plate 44 until the corresponding limiting plate 44 is adjusted to a proper position, according to practical conditions, when the second motor 562 drives the one-way threaded rod 561 to rotate in the forward direction, the sliding block 55 drives the second mounting frame 51 to slide leftwards in the second sliding groove 11 until the second mounting frame 51 is adjusted to a proper position, the first motor 52 drives the rotating shaft 53 to rotate, the rotating shaft 53 drives the detection gear 54 to rotate, and the detection gear 54 is meshed with the gear to be detected, and detecting the meshing degree.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge range of those skilled in the art.

Claims (10)

1. The utility model provides a gear detector's location frock which characterized in that includes:

a base (1);

the base (1) is provided with a positioning assembly (2) through a screw, and the positioning assembly is used for positioning the gear;

the positioning assembly (2) comprises a positioning plate (21), a cylindrical barrel (22) is fixedly arranged on the positioning plate (21), a screw rod (23) is rotatably arranged in the cylindrical barrel (22), one end of the screw rod (23) extends to the outside of the cylindrical barrel (22), and a plurality of limiting blocks (221) are fixedly arranged on the outer circumferential surface of the lower part of the cylindrical barrel (22);

a first sleeve block (24) is sleeved on the limiting block (221), a first connecting plate (25) is hinged to the first sleeve block (24), a second sleeve block (26) is sleeved on the screw rod (23) in a threaded manner, a second connecting plate (27) is hinged to the second sleeve block (26), the first connecting plate (25) and the second connecting plate (27) are hinged in an X-shaped manner, the outer side ends of the first connecting plate (25) and the second connecting plate (27) are hinged to a clamping plate (29) through hinge columns (28), a guide groove (291) is formed in the clamping plate (29), and the hinge columns (28) are slidably clamped in the guide groove (291);

a limiting component (4) is arranged above the clamping plate (29) through a first mounting frame (3) and used for limiting the situation that the gear shakes in the detection process;

and a detection component (5) is arranged on one side of the limiting component (4) and is used for detecting the gear.

2. The positioning tool of the gear detector according to claim 1, wherein the positioning tool comprises: the top of the screw rod (23) is provided with a first rotating handle (231).

3. The positioning tool of the gear detector according to claim 2, wherein the positioning tool comprises: the bottom of the screw rod (23) is fixedly provided with a circular block (232), a circular groove is formed in the cylindrical barrel (22), and the circular block (232) is rotatably clamped in the circular groove.

4. The positioning tool of the gear detector according to claim 1, wherein the positioning tool comprises: the clamping plate (29) is of an arc-shaped structure.

5. The positioning tool of the gear detector according to claim 1, wherein the positioning tool comprises: the limiting assembly (4) comprises an air cylinder (41), the output end of the air cylinder (41) penetrates through the first mounting frame (3) and is connected with a moving block (42), a first sliding groove (43) is formed in the lower portion of the moving block (42), limiting plates (44) are arranged on two sides of the first sliding groove (43) in a sliding mode, a first driving assembly (45) is arranged in the first sliding groove (43), the first driving assembly (45) is connected with the limiting plates (44) and is used for combining clamping sleeves with different diameters and sizes formed according to corresponding clamping plates (29) so as to adjust the distance between the corresponding limiting plates (44).

6. The positioning tool of the gear detector according to claim 5, wherein the positioning tool comprises: the first driving assembly (45) comprises a bidirectional threaded rod (451), the bidirectional threaded rod (451) is rotatably arranged in the first sliding groove (43), the limiting plate (44) is sleeved on the bidirectional threaded rod (451) in a threaded mode, one end of the bidirectional threaded rod (451) penetrates through the moving block (42), and the second rotating handle (452) extends to the outside of the moving block (42) in a fixed sleeved mode.

7. The positioning tool of the gear detector according to claim 1, wherein the positioning tool comprises: the detection assembly (5) comprises a second mounting frame (51), the second mounting frame (51) is arranged on the base (1), a first motor (52) is arranged on the second mounting frame (51), the output end of the first motor (52) penetrates through the second mounting frame (51) and is connected with a rotating shaft (53), the rotating shaft (53) is arranged on the base (1) in a rotating mode through a bearing, and a detection gear (54) is fixedly arranged on the rotating shaft (53) in a fixing mode and is used for being meshed with a gear to be detected and detecting the gear.

8. The positioning tool of the gear detector according to claim 7, wherein the positioning tool comprises: the base (1) is provided with a second sliding groove (11), a sliding block (55) is arranged in the second sliding groove (11) in a sliding mode, the upper portion of the sliding block (55) is fixedly connected with the lower portion of the second mounting frame (51), a second driving assembly (56) is arranged in the second sliding groove (11), and the second driving assembly (56) is connected with the sliding block (55).

9. The positioning tool of the gear detector according to claim 8, wherein the positioning tool comprises: the second driving assembly (56) comprises a one-way threaded rod (561), the one-way threaded rod (561) is rotatably arranged in the second sliding groove (11), the sliding block (55) is sleeved on the one-way threaded rod (561) in a threaded manner, one end of the one-way threaded rod (561) extends to the outside of the base (1), and the one end of the one-way threaded rod is connected with a second motor (562).

10. The positioning tool of the gear detector according to claim 9, wherein: the second sliding groove (11) and the sliding block (55) are both in a convex structure.

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