CN213422048U

CN213422048U - Spline shaft key groove detection tool

Info

Publication number: CN213422048U
Application number: CN202022556535.0U
Authority: CN
Inventors: 王恒
Original assignee: Tianjin Longshunda Machinery Parts Co ltd
Current assignee: Tianjin Longshunda Machinery Parts Co ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-06-11
Anticipated expiration: 2030-11-06

Abstract

The utility model provides a spline axle keyway detects frock, include: the device comprises a detection jig, a workbench, a dial indicator, a sliding strip, a supporting rod and a fixing rod; a detection ring is fixed on the detection jig, a standard key groove is formed in the inner side wall of the detection ring, and a detection strip is arranged on the detection jig; the worktable is provided with a placing groove; a sliding groove is formed in the sliding strip, the supporting rod is placed in the sliding groove, a first limiting block and a second limiting block are arranged at two ends of the sliding groove respectively, two limiting bolts are arranged on the first limiting block and the second limiting block relatively, a blind hole is formed in each of the left side surface and the right side surface of the supporting rod, a waist-shaped through hole is formed in each of the front side surface and the rear side surface of the supporting rod, and an upper limiting bolt and a lower limiting bolt are arranged in each waist-; the fixed rod is horizontally inserted between the upper limit bolt and the lower limit bolt; the amesdial is fixed in on the dead lever and is equipped with the measuring head, and the measuring head is aimed at to the test strip free end terminal surface. The utility model discloses detect easy operation, and can adjust the position of amesdial, convenient to use as required.

Description

Spline shaft key groove detection tool

Technical Field

The utility model belongs to the technical field of machining, especially indicate a spline axle keyway detects frock.

Background

The spline shaft is a common mechanical transmission shaft, a rotating part is sleeved outside the spline shaft, the rotating part is connected with the spline shaft through a spline, when the spline shaft rotates, the spline transmits torque to the rotating part, the rotating part rotates and is linked with the spline shaft, and the quality of the spline shaft is related to the reliability of transmission, so that the spline shaft is very important, and the spline shaft needs to be subjected to qualification detection when leaving a factory.

SUMMERY OF THE UTILITY MODEL

For solving the not enough of above prior art, the utility model provides a spline axle keyway detects frock.

The technical scheme of the utility model is realized like this:

the utility model provides a spline shaft keyway detects frock for the keyway to spline shaft top carries out the qualification and detects, and the one end that the keyway is relative is the bottom, includes: the device comprises a detection jig, a workbench, a dial indicator, a sliding strip, a supporting rod and a fixing rod;

the middle part of the detection jig is a hollowed area, detection is fixed around the hollowed area, a standard key groove is formed in the inner side wall of the detection ring, and a detection strip extending out of the detection jig is arranged on the detection jig;

the worktable is provided with a placing groove for placing the bottom end;

the sliding strip is fixed on the workbench and provided with a sliding groove, the bottom end of the supporting rod is placed in the sliding groove, two ends of the sliding groove are respectively provided with a first limiting block and a second limiting block, the first limiting block and the second limiting block are respectively provided with a first limiting bolt and a second limiting bolt which are opposite, the left side surface and the right side surface of the supporting rod are respectively provided with a blind hole which is opposite to the first limiting bolt and the second limiting bolt, the front side surface and the rear side surface of the supporting rod are provided with a waist-shaped through hole which is distributed along the height direction of the supporting rod, and the waist-shaped through hole is internally provided with an upper limiting bolt; the fixed rod is horizontally inserted into the waist-shaped hole and clamped by the upper limiting bolt and the lower limiting bolt; the amesdial is fixed in on the dead lever and is equipped with the measuring head on the amesdial, and the bottom of integral key shaft is placed behind the groove of shelving, and the terminal surface alignment measuring head of detection strip free end when detection tool cover is located on the keyway.

Preferably, the upper surface of the workbench is provided with three limiting strips which form an included angle of 120 degrees with each other around the placing groove, and clamping bolts are arranged in the limiting strips.

More preferably, the sliding groove is a dovetail groove.

Most preferably, the detection strip is of a U-shaped structure, and the U-shaped structure is fixed by a screw and then clamped between the upper surface and the lower surface of the detection jig.

The utility model discloses simple structure, design science, overall arrangement are compact, can also adjust the position of amesdial as required, and convenient to use, detection are convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a top view of the present invention;

FIG. 2 is a top view of the inspection fixture of FIG. 1 with the inspection fixture removed;

FIG. 3 is a top view of the inspection fixture;

FIG. 4 is a schematic view of the connection structure of the slide bar and the support bar in FIGS. 1 and 2;

FIG. 5 is a perspective view of the spline shaft.

In the figure: A. a spline shaft; a1, bottom end; a2, key slot; 1. detecting a jig; 11. a detection ring; 111. a standard keyway; 12. a test strip; 2. a work table; 21. a resting groove; 22. a limiting strip; 23. clamping the bolt; 3. a dial indicator; 31. a measuring head; 4. a slide bar; 41. a first stopper; 411. a first limit bolt; 42. a second limiting block; 421. a second limit bolt; 5. a support bar; 51. blind holes; 52. an upper limit bolt; 53. a lower limit bolt; 6. and (5) fixing the rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown collectively in fig. 1-4: the utility model provides a spline axle keyway detects frock for keyway A2 to spline axle A top carries out the qualification test, and the relative one end of keyway A2 is bottom A1, includes: the device comprises a detection jig 1, a workbench 2, a dial indicator 3, a sliding strip 4, a support rod 5 and a fixing rod 6; the middle part of the detection jig 1 is a hollowed area, a detection ring 11 is fixed around the hollowed area, a standard key groove 111 is arranged on the inner side wall of the detection ring 11, and a detection strip 12 extending out of the detection jig 1 is arranged on the detection jig 1; the worktable 2 is provided with a resting groove 21 for placing a bottom end A1; the sliding strip 4 is fixed on the workbench 2, a sliding groove is formed in the sliding strip 4, the bottom end of the support rod 5 is placed in the sliding groove, a first limiting block 41 and a second limiting block 42 are arranged at two ends of the sliding groove respectively, a first limiting bolt 411 and a second limiting bolt 421 which are opposite to each other are arranged on the first limiting block 41 and the second limiting block 42 respectively, blind holes 51 which are opposite to the first limiting bolt 411 and the second limiting bolt 421 are formed in the left side surface and the right side surface of the support rod 5 respectively, waist-shaped through holes distributed along the height direction of the support rod 5 are formed in the front side surface and the rear side surface of the support rod 5, and an upper limiting bolt 52 and a lower limiting bolt 53 are arranged; the fixed rod 6 is horizontally inserted into the waist-shaped hole and clamped by the upper limit bolt 52 and the lower limit bolt 53; dial indicator 3 is fixed in on dead lever 6 and is equipped with measuring head 31 on the dial indicator 3, and the terminal surface of detecting strip 12 free end aligns measuring head 31 when the bottom A1 of integral key shaft A places in shelving groove 21 and detection tool 1 cover is located on keyway A2.

The working principle is as follows: before detection, the bottom end A1 of the spline shaft A is placed in the resting groove 21. Locate integral key shaft A's top with detection tool 1 cover and be located outside keyway A2, detection strip 12 level sets up and aims at measuring head 31, promote detection tool 1 right and make the left surface of standard keyway 111 compress tightly the left end of keyway A2, later through last spacing bolt 52 and lower spacing bolt 53 adjustment dead lever 6, adjust the position of bracing piece 5 on the strip 4 that slides through first spacing bolt 411 and second spacing bolt 421 and make measuring head 31 just contact the terminal surface of detection strip 12 free end. During detection, the detection jig 1 is pushed leftwards, so that the right end of the key groove A2 compresses the right side face of the standard key groove 111, the indication number of the dial indicator 3 is read, the gap between the key groove A2 and the standard key groove 111 can be known, and whether the key groove is qualified or not can be judged according to the gap.

As a preferred technical scheme, the utility model discloses a further embodiment, the upper surface of workstation 2 is equipped with three spacing 22 that is 120 contained angles each other around shelving groove 21, is equipped with chucking bolt 23 in the spacing 22. In order to further improve the fixing effect of the spline shaft a, the spline shaft a is locked by adjusting the clamping bolt 23 after the bottom end a1 is inserted into the resting groove 21.

As a preferred technical scheme, the utility model discloses a further embodiment, the spout is the dovetail, and 5 bottoms of bracing piece are equipped with the forked tail arch of matcing with this dovetail structure, and bracing piece 5 is more stable with being connected of strip 4 that slides.

As a preferred technical solution, in yet another embodiment of the present invention, the detecting strip 12 is a U-shaped structure, the opening of the U-shaped structure faces the detecting jig 1, the detecting strip 12 is inserted into the detecting jig 1 and fixed to the detecting jig 1 by screws, and then the upper surface and the lower surface of the detecting jig 1 are clamped; the provision of the test strip 12 facilitates the testing of the clearance between the keyway a2 and the standard keyway 111.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a spline shaft keyway detects frock for keyway (A2) to spline shaft (A) top carry out the qualification test, and the one end that keyway (A2) is relative is bottom (A1), its characterized in that: the method comprises the following steps: the device comprises a detection jig (1), a workbench (2), a dial indicator (3), a sliding strip (4), a support rod (5) and a fixed rod (6);

the middle part of the detection jig (1) is a hollow area, a detection ring (11) is fixed around the hollow area, a standard key groove (111) is arranged on the inner side wall of the detection ring (11), and a detection strip (12) extending out of the detection jig (1) is arranged on the detection jig (1);

a laying groove (21) for placing a bottom end (A1) is arranged on the workbench (2);

the sliding strip (4) is fixed on the workbench (2), a sliding groove is formed in the sliding strip (4), the bottom end of the supporting rod (5) is placed in the sliding groove, a first limiting block (41) and a second limiting block (42) are arranged at two ends of the sliding groove respectively, a first limiting bolt (411) and a second limiting bolt (421) which are opposite to each other are arranged on the first limiting block (41) and the second limiting block (42) respectively, blind holes (51) which are opposite to the first limiting bolt (411) and the second limiting bolt (421) are formed in the left side surface and the right side surface of the supporting rod (5) respectively, waist-shaped through holes which are distributed along the height direction of the supporting rod (5) are formed in the front side surface and the rear side surface of the supporting rod (5), and an upper limiting bolt (52) and a lower limiting bolt (53) are arranged in; the fixing rod (6) is horizontally inserted into the waist-shaped hole and clamped by an upper limiting bolt (52) and a lower limiting bolt (53); dial indicator (3) are fixed in on dead lever (6) and are equipped with measuring head (31) on dial indicator (3), and place behind shelving groove (21) bottom (A1) of integral key shaft (A), and the terminal surface alignment measuring head (31) of detection strip (12) free end when detection tool (1) cover is located on keyway (A2).

2. The spline shaft keyway detects frock of claim 1, characterized in that: the upper surface of the workbench (2) is provided with three limiting strips (22) which form an included angle of 120 degrees with each other around the placing groove (21), and clamping bolts (23) are arranged in the limiting strips (22).

3. The spline shaft keyway detects frock of claim 1, characterized in that: the sliding groove is a dovetail groove.

4. The spline shaft keyway detects frock of claim 1, characterized in that: the detection strip (12) is of a U-shaped structure, and the U-shaped structure is fixed by screws and then clamped between the upper surface and the lower surface of the detection jig (1).