CN216484437U - Cam machining check tool - Google Patents

Abstract

The utility model relates to the technical field of cam inspection, in particular to a cam processing inspection tool, which is convenient for cam clamping, a probe of a hardness tester is kept vertical to a contact surface, the detection precision is high, and the working efficiency is high; the bottom plate is installed on a workbench of a hardness tester, the two main connecting plates are respectively installed at the right part of the upper end face of the bottom plate, the lower end face of the right part of the upper plate is rotatably connected with the two main connecting plates through a rotating shaft, the rotating shaft and the two side circumferential faces of a cam to be tested are coaxial, the cam mechanism is installed at the left part of the bottom plate and is in transmission connection with the left part of the lower end face of the upper plate, the clamping mechanism is installed on the upper plate and is located right above the two main connecting plates, the clamping mechanism is parallel to the rotating shaft of the upper plate, an output shaft of the motor is in transmission connection with the clamping mechanism, the supporting mechanism is installed on the upper plate, and the supporting mechanism is vertically arranged with the clamping mechanism.

Description

Cam machining check tool

Technical Field

The utility model relates to a technical field of cam inspection especially relates to an utensil is examined in cam processing.

Background

The cam refers to a mechanical rotary or sliding part which transmits motion to a roller which moves close to the edge of the cam or a needle rod which moves freely on a groove surface, or bears force from the roller and the needle rod, and is a very common mechanical part.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a make things convenient for cam centre gripping, the probe of sclerometer keeps the perpendicular to contact surface, and it is high to detect the precision, does efficient cam processing and examines utensil.

The utility model relates to a cam processing checking fixture, which comprises a bottom plate, an upper plate, two main connecting plates, a cam mechanism, a clamping mechanism, a motor and a supporting mechanism, wherein the bottom plate is arranged on a workbench of a hardness tester, the two main connecting plates are respectively arranged on the front side and the rear side of the right part of the upper end surface of the bottom plate, the lower end surface of the right part of the upper plate is rotationally connected with the two main connecting plates through a rotating shaft, the rotating shaft and the circumferential surfaces on two sides of the cam to be detected are coaxial, the cam mechanism is arranged at the left part of the upper end surface of the bottom plate and is in transmission connection with the left part of the lower end surface of the upper plate, the clamping mechanism is arranged on the upper end surface of the upper plate and is positioned right above the two main connecting plates, the clamping mechanism is parallel to a rotating shaft of the upper plate, the motor is arranged on the upper plate, an output shaft of the motor is in transmission connection with the clamping mechanism, the supporting mechanism is arranged on the upper end face of the upper plate, and the supporting mechanism is arranged perpendicular to the clamping mechanism; the bottom plate is installed on a workbench of a hardness tester, the central axis of the clamping mechanism is located right below a probe of the hardness tester, a cam needing hardness detection is installed on the clamping mechanism, the clamping mechanism is adjusted to enable the cam to be in a horizontal state, the motor and the hardness tester are started, the probe of the hardness tester conducts uniform multiple hardness detection on circumferential surfaces at two ends of the cam, the clamping mechanism is reset to enable the cam to be in a horizontal state, the supporting mechanism is moved to enable the supporting mechanism to conduct auxiliary supporting on the cam, the cam mechanism and the hardness tester are started, the cam mechanism drives the upper plate to rotate along a rotating shaft of the main connecting plate, the probe of the hardness tester conducts uniform multiple hardness detection on circumferential surfaces at two sides of the cam, the cam is convenient to clamp and fix, the probe of the hardness tester is kept perpendicular to a contact surface, detection difficulty is reduced, detection precision is improved, and working efficiency is improved.

Preferably, the cam mechanism further comprises two vertical plates, a driving shaft, a driving cam, a driving motor, two roller supports and a roller, wherein the two vertical plates are respectively arranged on the front side and the rear side of the left part of the upper end surface of the bottom plate; driving motor passes through drive shaft drive cam and rotates, pivoted drive cam drives and reciprocates rather than the gyro wheel of contact, the gyro wheel passes through the gyro wheel support and drives the upper plate and rotate certain angle round the pivot of main connecting plate, because the pivot of the global centre of a circle of the side circumference of the cam that waits to detect is concentric with the main connecting plate, so make the probe of sclerometer keep perpendicular with the side circumference of cam, the probe of cooperation sclerometer carries out hardness detection many times to the side circumference of cam, the improvement detects the precision.

Preferably, the telescopic device also comprises two lug plates, a telescopic pipe and a tension spring, wherein the two lug plates are respectively arranged in the middle of the upper end surface of the bottom plate and in the middle of the lower end surface of the upper plate; the roller and the driving cam keep precise contact under the action of the tension spring, and the stability of mutual support of the driving cam and the roller is improved.

Preferably, the clamping mechanism further comprises clamping shaft plates, clamping shafts, a key board and two clamping nuts, the two clamping shaft plates are respectively arranged on the front side and the rear side of the right part of the upper end surface of the upper plate, the two clamping shaft plates are both positioned above the two main connecting plates, one ends of the clamping shafts are arranged on the clamping shaft plates, the central axes of the clamping shafts are parallel to the axes of the rotating shafts of the two main connecting plates, the central axes of the clamping shafts are positioned right below the sclerometer probes, the key board is arranged on the outer wall of the middle part of the clamping shafts, the two ends of the clamping shafts are both provided with threads, the two clamping nuts are respectively and symmetrically and rotatably arranged at the two ends of the clamping shafts, and the output shafts of the motors are concentrically connected with one ends of the clamping shafts; the installation shaft hole of cam suit is on the centre gripping axle to make keyway and key platform cooperation on the camshaft mouth, rotate two centre gripping nuts, make two centre gripping nuts lock the cam, the concentric periphery in both ends of cam keeps vertical contact with the probe of sclerometer this moment, improves and detects the precision.

Preferably, the clamping device further comprises a first slide rail, a first slide block and an auxiliary clamping shaft plate, wherein the first slide rail is arranged on the upper end surface of the upper plate, the first slide rail is positioned below the clamping shaft and is parallel to the clamping shaft, the first slide block is slidably arranged on the first slide rail, the auxiliary clamping shaft plate is arranged on the first slide block, and a sliding sleeve matched with the clamping shaft is arranged on the auxiliary clamping shaft plate; after the cam is locked on the clamping shaft, the first sliding block is moved, so that the sliding sleeve of the auxiliary clamping shaft plate is rotatably connected with one end of the clamping shaft, the auxiliary clamping shaft plate is used for carrying out auxiliary support on the clamping shaft, the bending deformation of the clamping shaft is reduced, and the detection precision is improved.

Preferably, the supporting mechanism further comprises a second slide rail, a second slide block, a supporting frame and two supporting rollers, the second slide rail is mounted on the upper end surface of the upper plate and is arranged perpendicular to the first slide rail, the second slide rail is aligned to the middle of the clamping shaft and is slidably mounted on the second slide rail, the supporting frame is mounted on the second slide block, and the two supporting rollers are respectively rotatably mounted on two sides of the supporting frame; when the circumferential surfaces of the two sides of the cam are detected, the second sliding block is moved along the second sliding rail, so that the two supporting rollers support the circumferential surface of the lower side of the cam, the cam is prevented from displacing during hardness detection, the detection result deviation is avoided, and the detection reliability is improved.

Preferably, the device also comprises two locking nuts, the first sliding block and the second sliding block are both provided with the locking nuts, and threaded rods of the two locking nuts are respectively contacted with the first sliding rail and the second sliding rail; after the first sliding block and the second sliding block move to the supporting positions, the first sliding block and the second sliding block are locked on the first sliding rail and the second sliding rail respectively by screwing the two locking nuts, and the detection stability is improved.

Compared with the prior art, the beneficial effects of the utility model are that: the bottom plate is installed on a workbench of a hardness tester, the central axis of the clamping mechanism is located right below a probe of the hardness tester, a cam needing hardness detection is installed on the clamping mechanism, the clamping mechanism is adjusted to enable the cam to be in a horizontal state, the motor and the hardness tester are started, the probe of the hardness tester conducts uniform multiple hardness detection on circumferential surfaces at two ends of the cam, the clamping mechanism is reset to enable the cam to be in a horizontal state, the supporting mechanism is moved to enable the supporting mechanism to conduct auxiliary supporting on the cam, the cam mechanism and the hardness tester are started, the cam mechanism drives the upper plate to rotate along a rotating shaft of the main connecting plate, the probe of the hardness tester conducts uniform multiple hardness detection on circumferential surfaces at two sides of the cam, the cam is convenient to clamp and fix, the probe of the hardness tester is kept perpendicular to a contact surface, detection difficulty is reduced, detection precision is improved, and working efficiency is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is an (enlarged) schematic view of the upper plate, the clamping mechanism, the motor and the support mechanism;

in the drawings, the reference numbers: 1. a base plate; 2. an upper plate; 3. a main connection plate; 4. a cam mechanism; 5. a clamping mechanism; 6. a motor; 7. a support mechanism; 8. a vertical plate; 9. a drive shaft; 10. a drive cam; 11. a drive motor; 12. a roller bracket; 13. a roller; 14. an ear plate; 15. a telescopic pipe; 16. a tension spring; 17. clamping the shaft plate; 18. a clamping shaft; 19. a key pad; 20. clamping the nut; 21. a first slide rail; 22. a first slider; 23. an auxiliary clamping shaft plate; 24. a second slide rail; 25. a second slider; 26. a support frame; 27. supporting the rollers; 28. and locking the nut.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Example 1

A cam processing inspection device comprises a bottom plate 1, an upper plate 2, two main connecting plates 3, a cam mechanism 4, a clamping mechanism 5, a motor 6 and a supporting mechanism 7, wherein the bottom plate 1 is arranged on a workbench of a hardness tester, the two main connecting plates 3 are respectively arranged on the front side and the rear side of the right part of the upper end face of the bottom plate 1, the lower end face of the right part of the upper plate 2 is rotatably connected with the two main connecting plates 3 through a rotating shaft, the rotating shaft is coaxial with the circumferential faces of two sides of a cam to be detected, the cam mechanism 4 is arranged on the left part of the upper end face of the bottom plate 1, the cam mechanism 4 is in transmission connection with the left part of the lower end face of the upper plate 2, the clamping mechanism 5 is arranged on the upper end face of the upper plate 2, the clamping mechanism 5 is positioned right above the two main connecting plates 3, the clamping mechanism 5 is parallel to the rotating shaft of the upper plate 2, the motor 6 is arranged on the upper plate 2, the output shaft of the motor 6 is in transmission connection with the clamping mechanism 5, the supporting mechanism 7 is arranged on the upper end surface of the upper plate 2, and the supporting mechanism 7 is vertically arranged with the clamping mechanism 5; the bottom plate 1 is installed on a workbench of a hardness tester, the central axis of the clamping mechanism 5 is positioned under a probe of the hardness tester, a cam needing hardness detection is installed on the clamping mechanism 5, the clamping mechanism 5 is adjusted to enable the cam to be in a horizontal state, the motor 6 and the hardness tester are started, the probe of the hardness tester is used for carrying out uniform hardness detection on the circumferential surfaces of two ends of the cam for multiple times, the clamping mechanism 5 is reset to enable the cam to be in the horizontal state, the supporting mechanism 7 is moved to enable the supporting mechanism 7 to carry out auxiliary supporting on the cam, the cam mechanism 4 and the hardness tester are started, the cam mechanism 4 drives the upper plate 2 to rotate along the rotating shaft of the main connecting plate 3, the probes of the hardness tester are used for carrying out uniform hardness detection on the circumferential surfaces of two sides of the cam for multiple times, the cam is convenient to clamp and fix, the probe of the hardness tester is kept perpendicular to a contact surface, the detection difficulty is reduced, the detection precision is improved, and the working efficiency is improved.

Example 2

A cam processing inspection device comprises a bottom plate 1, an upper plate 2, two main connecting plates 3, a cam mechanism 4, a clamping mechanism 5, a motor 6 and a supporting mechanism 7, wherein the bottom plate 1 is arranged on a workbench of a hardness tester, the two main connecting plates 3 are respectively arranged on the front side and the rear side of the right part of the upper end surface of the bottom plate 1, the lower end surface of the right part of the upper plate 2 is rotatably connected with the two main connecting plates 3 through a rotating shaft, the rotating shaft and the circumference surfaces of two sides of a cam to be tested are coaxial, the cam mechanism 4 is arranged on the left part of the upper end surface of the bottom plate 1, the cam mechanism 4 is in transmission connection with the left part of the lower end surface of the upper plate 2, the clamping mechanism 5 is arranged on the upper end surface of the upper plate 2, the clamping mechanism 5 is positioned right above the two main connecting plates 3, the clamping mechanism 5 is parallel to the rotating shaft of the upper plate 2, the motor 6 is arranged on the upper plate 2, the output shaft of the motor 6 is in transmission connection with the clamping mechanism 5, the supporting mechanism 7 is arranged on the upper end surface of the upper plate 2, and the supporting mechanism 7 is vertically arranged with the clamping mechanism 5; the cam mechanism 4 further comprises two vertical plates 8, a driving shaft 9, a driving cam 10, a driving motor 11, two roller supports 12 and rollers 13, the two vertical plates 8 are respectively installed on the front side and the rear side of the left part of the upper end surface of the bottom plate 1, the driving cam 10 is rotatably installed between the two vertical plates 8 through the driving shaft 9, the driving motor 11 is installed on the upper end surface of the bottom plate 1, an output shaft of the driving motor 11 is concentrically connected with one end of the driving shaft 9, the two roller supports 12 are installed on the left part of the lower end surface of the upper plate 2, the rollers 13 are rotatably installed between the two roller supports 12, and the rollers 13 are tightly contacted with the outer side wall of the driving cam 10; the telescopic pipe is characterized by further comprising two lug plates 14, a telescopic pipe 15 and a tension spring 16, wherein the two lug plates 14 are respectively arranged in the middle of the upper end face of the bottom plate 1 and the middle of the lower end face of the upper plate 2, two ends of the telescopic pipe 15 are respectively rotatably connected with the two lug plates 14, the tension spring 16 is sleeved on the telescopic pipe 15, and two ends of the tension spring 16 are respectively connected with two ends of the telescopic pipe 15; the gyro wheel 13 that tension spring 16's tensile force made keeps the precision contact with drive cam 10, driving motor 11 passes through drive shaft 9 drive cam 10 and rotates, pivoted drive cam 10 drives gyro wheel 13 rather than the contact and reciprocates, gyro wheel 13 drives upper plate 2 through gyro wheel support 12 and rotates certain angle round the pivot of main connecting plate 3, because the centre of a circle that waits the side circumference of the cam that detects is global with the pivot of main connecting plate 3, so make the probe of sclerometer keep perpendicular with the side circumference of cam, the probe of cooperation sclerometer carries out hardness detection many times to the side circumference of cam, improve and detect the precision.

Example 3

A cam processing inspection device comprises a bottom plate 1, an upper plate 2, two main connecting plates 3, a cam mechanism 4, a clamping mechanism 5, a motor 6 and a supporting mechanism 7, wherein the bottom plate 1 is arranged on a workbench of a hardness tester, the two main connecting plates 3 are respectively arranged on the front side and the rear side of the right part of the upper end surface of the bottom plate 1, the lower end surface of the right part of the upper plate 2 is rotatably connected with the two main connecting plates 3 through a rotating shaft, the rotating shaft and the circumference surfaces of two sides of a cam to be tested are coaxial, the cam mechanism 4 is arranged on the left part of the upper end surface of the bottom plate 1, the cam mechanism 4 is in transmission connection with the left part of the lower end surface of the upper plate 2, the clamping mechanism 5 is arranged on the upper end surface of the upper plate 2, the clamping mechanism 5 is positioned right above the two main connecting plates 3, the clamping mechanism 5 is parallel to the rotating shaft of the upper plate 2, the motor 6 is arranged on the upper plate 2, the output shaft of the motor 6 is in transmission connection with the clamping mechanism 5, the supporting mechanism 7 is arranged on the upper end surface of the upper plate 2, and the supporting mechanism 7 is vertically arranged with the clamping mechanism 5; the clamping mechanism 5 further comprises clamping shaft plates 17, clamping shafts 18, a key platform 19 and two clamping nuts 20, the two clamping shaft plates 17 are respectively installed on the front side and the rear side of the right part of the upper end face of the upper plate 2, the two clamping shaft plates 17 are both located above the two main connecting plates 3, one ends of the clamping shafts 18 are installed on the clamping shaft plates 17, the central axes of the clamping shafts 18 are parallel to the axes of the rotating shafts of the two main connecting plates 3, the central axes of the clamping shafts 18 are located right below the sclerometer probes, the key platform 19 is arranged on the outer wall of the middle part of the clamping shafts 18, both ends of the clamping shafts 18 are provided with threads, the two clamping nuts 20 are respectively and symmetrically and rotatably installed at both ends of the clamping shafts 18, and the output shaft of the motor 6 is concentrically connected with one end of the clamping shafts 18; the clamping device is characterized by further comprising a first slide rail 21, a first slide block 22 and an auxiliary clamping shaft plate 23, wherein the first slide rail 21 is installed on the upper end face of the upper plate 2, the first slide rail 21 is located below the clamping shaft 18 and is parallel to the clamping shaft 18, the first slide block 22 is installed on the first slide rail 21 in a sliding mode, the auxiliary clamping shaft plate 23 is installed on the first slide block 22, and a sliding sleeve matched with the clamping shaft 18 is arranged on the auxiliary clamping shaft plate 23; the supporting mechanism 7 further comprises a second slide rail 24, a second slider 25, a supporting frame 26 and two supporting rollers 27, the second slide rail 24 is mounted on the upper end surface of the upper plate 2, the second slide rail 24 is vertically arranged with the first slide rail 21, the second slide rail 24 is aligned with the middle part of the clamping shaft 18, the second slider 25 is slidably mounted on the second slide rail 24, the supporting frame 26 is mounted on the second slider 25, and the two supporting rollers 27 are respectively rotatably mounted on two sides of the supporting frame 26; the locking device further comprises two locking nuts 28, the first sliding block 22 and the second sliding block 25 are both provided with the locking nuts 28, and threaded rods of the two locking nuts 28 are respectively contacted with the first sliding rail 21 and the second sliding rail 24; the mounting shaft hole of the cam is sleeved on the clamping shaft 18, and the key groove on the camshaft opening is matched with the key platform 19, the two clamping nuts 20 are rotated, the cam is locked by the two clamping nuts 20, after the cam is locked on the clamping shaft 18, the first slide block 22 is moved, the sliding sleeve of the auxiliary clamping shaft plate 23 is rotatably connected with one end of the clamping shaft 18, the auxiliary clamping shaft plate 23 is used for auxiliary supporting of the clamping shaft 18, the bending deformation of the clamping shaft 18 is reduced, the concentric circumferential surfaces at the two ends of the cam are in vertical contact with the probe of a hardness tester, when the circumferential surfaces at the two sides of the cam are tested, the second slide block 25 is moved along the second slide rail 24, the two supporting rollers 27 are used for supporting the lower circumferential surface of the cam, the two locking nuts 28 are screwed to respectively lock the first slide block 22 and the second slide block 25 on the first slide rail 21 and the second slide rail 24, so as to avoid the displacement of the cam during the hardness test, resulting in a deviation of the detection result.

As shown in fig. 1 to 3, the cam processing inspection device of the present invention, when in operation, firstly, the bottom plate 1 is installed on the workbench of the durometer, the central axis of the clamping shaft 18 is located under the probe of the durometer, then the cam needing hardness detection is installed on the clamping shaft 18, the first slider 22 is moved to make the auxiliary clamping shaft plate 23 support the clamping shaft 18, the clamping shaft 18 is rotated by the motor 6 to make the cam in a horizontal state, then the motor 6 and the durometer are started, the motor 6 and the durometer are cooperated to act, the probe of the durometer performs uniform hardness detection on the circumferential surfaces at two ends of the cam for many times, finally, the clamping shaft 18 is reset to make the cam restore to a horizontal state, the second slider 25 is moved to make the supporting roller 27 support the cam to assist in supporting, the driving motor 11 and the durometer are started, the driving motor 11 drives the driving cam 10 to drive the upper plate 2 to rotate along the rotating shaft of the main connecting plate 3, the driving motor 11 is matched with a hardness tester, so that the probes of the hardness tester can perform uniform hardness detection on the circumferential surfaces on two sides of the cam for multiple times.

The utility model discloses the main function who realizes does: the cam clamping is facilitated, the probe of the hardness tester is perpendicular to the contact surface, the detection precision is high, and the working efficiency is high.

The installation mode, the connection mode or the arrangement mode of the cam processing checking fixture of the utility model are common mechanical modes, and the cam processing checking fixture can be implemented as long as the beneficial effects can be achieved; the utility model discloses a motor 6, driving motor 11, driving cam 10, gyro wheel 13, flexible pipe 15, extension spring 16, first slide rail 21, first slider 22, second slide rail 24, second slider 25, supporting roller 27 of utensil are examined in cam processing for purchase on the market, and this industry technical staff only need according to its subsidiary service instruction install and operate can, and need not the technical staff in this field to pay out creative work.

All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (7)

1. A cam processing detection tool is characterized by comprising a bottom plate (1), an upper plate (2), two main connecting plates (3), cam mechanisms (4), a clamping mechanism (5), a motor (6) and a supporting mechanism (7), wherein the bottom plate (1) is arranged on a workbench of a hardness tester, the two main connecting plates (3) are respectively arranged on the front side and the rear side of the right part of the upper end face of the bottom plate (1), the lower end face of the right part of the upper plate (2) is rotatably connected with the two main connecting plates (3) through a rotating shaft, the rotating shaft and the two side circumferential faces of a cam to be detected are coaxial, the cam mechanisms (4) are arranged on the left part of the upper end face of the bottom plate (1), the cam mechanisms (4) are in transmission connection with the left part of the lower end face of the upper plate (2), the clamping mechanism (5) is arranged on the upper end face of the upper plate (2), and the clamping mechanism (5) is positioned right above the two main connecting plates (3), the clamping mechanism (5) is parallel to a rotating shaft of the upper plate (2), the motor (6) is installed on the upper plate (2), an output shaft of the motor (6) is in transmission connection with the clamping mechanism (5), the supporting mechanism (7) is installed on the upper end face of the upper plate (2), and the supporting mechanism (7) and the clamping mechanism (5) are vertically arranged.

2. The cam machining detection tool according to claim 1, wherein the cam mechanism (4) further comprises two vertical plates (8), a driving shaft (9) and a driving cam (10), driving motor (11), two gyro wheel supports (12) and gyro wheel (13), both sides around the left part of the up end of bottom plate (1) are installed respectively in two riser (8), drive cam (10) are rotated through drive shaft (9) and are installed between two riser (8), driving motor (11) are installed on the up end of bottom plate (1), the output shaft of driving motor (11) is connected with the one end of drive shaft (9) is concentric, the left part of the lower terminal surface of upper plate (2) is installed in two gyro wheel supports (12), gyro wheel (13) rotate and install between two gyro wheel supports (12), gyro wheel (13) and the lateral wall in close contact with of drive cam (10).

3. The cam machining detection tool is characterized by further comprising two lug plates (14), an extension tube (15) and a tension spring (16), wherein the two lug plates (14) are respectively installed in the middle of the upper end face of the bottom plate (1) and the middle of the lower end face of the upper plate (2), two ends of the extension tube (15) are respectively rotatably connected with the two lug plates (14), the tension spring (16) is sleeved on the extension tube (15), and two ends of the tension spring (16) are respectively connected with two ends of the extension tube (15).

4. The cam machining detection tool is characterized in that the clamping mechanism (5) further comprises clamping shaft plates (17), clamping shafts (18), a key table (19) and two clamping nuts (20), the two clamping shaft plates (17) are respectively installed on the front side and the rear side of the right portion of the upper end face of the upper plate (2), the two clamping shaft plates (17) are located above the two main connecting plates (3), one ends of the clamping shafts (18) are installed on the clamping shaft plates (17), the central axis of each clamping shaft (18) is parallel to the axis of a rotating shaft of each main connecting plate (3), the central axis of each clamping shaft (18) is located right below a hardness tester probe, the key table (19) is arranged on the outer wall of the middle portion of each clamping shaft (18), threads are arranged at two ends of each clamping shaft (18), the two clamping nuts (20) are respectively and symmetrically installed at two ends of each clamping shaft (18) in a rotating mode, the output shaft of the motor (6) is concentrically connected with one end of the clamping shaft (18).

5. The cam machining detection tool is characterized by further comprising a first sliding rail (21), a first sliding block (22) and an auxiliary clamping shaft plate (23), wherein the first sliding rail (21) is mounted on the upper end face of the upper plate (2), the first sliding rail (21) is located below the clamping shaft (18) and is parallel to the clamping shaft (18), the first sliding block (22) is slidably mounted on the first sliding rail (21), the auxiliary clamping shaft plate (23) is mounted on the first sliding block (22), and a sliding sleeve matched with the clamping shaft (18) is arranged on the auxiliary clamping shaft plate (23).

6. The cam machining detection tool is characterized in that the supporting mechanism (7) further comprises a second slide rail (24), a second slide block (25), a supporting frame (26) and two supporting rollers (27), the second slide rail (24) is mounted on the upper end face of the upper plate (2), the second slide rail (24) is vertically arranged with the first slide rail (21), the second slide rail (24) is aligned with the middle of the clamping shaft (18), the second slide block (25) is slidably mounted on the second slide rail (24), the supporting frame (26) is mounted on the second slide block (25), and the two supporting rollers (27) are rotatably mounted on two sides of the supporting frame (26) respectively.

7. The cam machining detection tool according to claim 6, further comprising two locking nuts (28), wherein the locking nuts (28) are arranged on the first sliding block (22) and the second sliding block (25), and threaded rods of the two locking nuts (28) are respectively in contact with the first sliding rail (21) and the second sliding rail (24).

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