Handheld snap ring groove measuring device

Abstract

The present invention discloses a handheld snap ring groove measuring device, comprising a handle, a positioning rod, a displacement sensor, a jacket, a contact, a transmission rod, a button, a push block, and a fixture; the positioning rod is fixed to the handle, and the displacement sensor is located inside the positioning rod; the jacket is fixed to the handle, the contact is slidably connected to the jacket, and a first spring is arranged between the contact and the jacket, and the top of the contact abuts against the displacement sensor; the transmission rod is slidably connected to the positioning rod, and both ends abut against the button and the push block respectively; the push block is slidably connected to the jacket, and a second spring is arranged longitudinally between the push block and the jacket, and the push block includes at least one wedge-shaped push claw; the fixture is rotatably connected to the jacket, and a third spring is arranged transversely between the fixture and the jacket, and the fixture includes a wedge-shaped clamping claw and a claw hook, the wedge-shaped clamping claw is cooperatively connected with the push claw, and the claw hook extends to the outside of the jacket. The handheld snap ring groove measuring device disclosed by the present invention is convenient to test and accurate in testing, and the whole device has a compact structure and is easy to hold.

Description

Technical Field

[0001] The invention is used for measuring the depth of a retaining ring groove, and particularly relates to a handheld retaining ring groove measuring device. Background Art

[0002] Circlip groove measuring devices are commonly used in engine and gearbox assembly lines. Before installing circlips and gaskets, it is necessary to measure the grooves of the installation parts. After the measurement, the corresponding circlips or gaskets are selected for installation. The circlip groove measuring devices used in the domestic industry are generally automated measuring equipment. Although they are easy to operate, the production cost of automated equipment is high, the space occupied is large, and the debugging is difficult. Due to the limitations of the production line process layout, the automated circlip groove measuring device cannot be used for groove measurement. Therefore, it is of great significance to develop a circlip groove measuring device that is manually operated, lightweight, compact, and has high measurement accuracy. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a handheld retaining ring groove measuring device, which replaces the existing automated retaining ring groove measuring device. It has a compact structure and occupies a small area. The device is lightweight and easy to hold and operate, and has high measurement accuracy.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a handheld snap ring groove measuring device, characterized in that it includes a handle part, a positioning rod, a displacement sensor, a jacket, a contact, a transmission rod, a button, a push block, and a clamp; the positioning rod is fixed to the handle part, a first guide hole is passed through the interior of the positioning rod, and the displacement sensor is located in the first guide hole; the jacket is located below the positioning rod, and the jacket is fixed to the handle part, a second guide hole is provided inside the jacket, the contact is located in the second guide hole, one end of the contact extends to the outside of the jacket, and extends to the jacket A first spring is arranged between the external contact and the outer sleeve, and the other end of the contact abuts against the displacement sensor; the transmission rod is slidably connected with the positioning rod, one end of the transmission rod abuts against the button, and the other end abuts against the push block; the push block is sleeved on the outside of the outer sleeve and slidably connected with the outer sleeve, a second spring is longitudinally arranged between the push block and the outer sleeve, and the push block includes at least one wedge-shaped push claw; the clamp is rotatably connected with the outer sleeve, a third spring is transversely arranged between the clamp and the outer sleeve, the clamp includes a wedge-shaped clamp and a claw hook, the wedge-shaped clamp is cooperatively connected with the push claw, and the claw hook extends to the outside of the outer sleeve.

[0005] Preferably, the handle portion comprises a first cylindrical section and a second cylindrical section, the diameter of the first cylindrical section is smaller than that of the second cylindrical section, and a flange is provided in the first cylindrical section.

[0006] Preferably, a guide groove is provided at the top end of the positioning rod, a button is slidably connected in the guide groove, and a placement base plate is provided at the bottom end of the positioning rod, and the placement base plate abuts against the flange.

[0007] Preferably, a positioning hole is provided in the longitudinal direction of the positioning rod, and the transfer rod passes through the positioning hole.

[0008] Preferably, the push block comprises a guide sleeve, the push claw is located outside the guide sleeve, a third guide hole is opened inside the guide sleeve, and a bushing limiting flange is arranged in the guide sleeve located in the third guide hole.

[0009] Preferably, a bushing is provided between the push block and the outer sleeve, and one end of the bushing abuts against a bushing limiting flange.

[0010] Preferably, the sleeve includes a guide portion and a fixed portion; a gasket groove and a retaining ring groove are arranged on the outside of the guide portion at the top end of the guide portion; an installation groove is arranged in the fixed portion, and a spring installation groove is arranged radially on the inside of the installation groove, and the third spring is located in the spring installation groove.

[0011] Preferably, a groove is provided at the bottom of the fixing portion, a limiting hole is provided at the bottom of the fixing portion inside the groove, a limiting column is provided inside the limiting hole, and the first spring sleeve is provided outside the limiting column.

[0012] Preferably, the contact includes a guide rod and a limit plate, the guide rod is located in the second guide hole, one end of the guide rod is connected to the contact block, the contact block abuts against the displacement sensor, the limit plate is located in the groove, a limit through hole corresponding to the position of the installation slot is provided in the limit plate, a spring limit groove is also provided in the limit plate, and the third spring abuts against the spring limit groove.

[0013] Preferably, a nut is fixed to the top of the handle portion, and the button passes through the nut.

[0014] Beneficial effects of the invention: The invention discloses a handheld retaining ring groove measuring device, comprising a handle portion, a positioning rod, a displacement sensor, a sleeve, a contact, a transmission rod, a button, a push block, and a clamp; the positioning rod is fixed to the handle portion, and the displacement sensor is located inside the positioning rod; the sleeve is fixed to the handle portion, the contact is slidably connected to the sleeve, and a first spring is arranged between the contact and the sleeve, and the top of the contact abuts against the displacement sensor; the transmission rod is slidably connected to the positioning rod, and both ends abut against the button and the push block respectively; the push block is slidably connected to the sleeve, and a second spring is arranged longitudinally between the push block and the sleeve, and the push block includes at least one wedge-shaped push claw; the clamp is rotatably connected to the sleeve, and a third spring is arranged transversely between the clamp and the sleeve, and the clamp includes a wedge-shaped clamp and a claw hook, the wedge clamp is cooperatively connected to the push claw, and the claw hook extends to the outside of the sleeve. The present invention presses the transmission rod through a button, and the transmission rod transmits force to the push block. Since the clamp in the clamp cooperates with the wedge-shaped end surface of the push claw, the clamp is opened after the push block is pressed down, and the claw hook is placed in the top of the spring groove of the measured object. At this time, the contact is in contact with the measured object, and the handle is pressed down again until the claw hook touches the bottom of the spring groove. After the contact is stressed, the displacement sensor is squeezed, and then the depth of the spring groove is measured using the displacement sensor. The handheld spring groove measuring device disclosed by the present invention is easy to test and accurate in testing. The entire device has a compact structure and is easy to hold. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a handheld snap ring groove measuring device;

[0016] Figure 2 It is a longitudinal sectional view of a handheld circlip groove measuring device;

[0017] Figure 3 is a cross-sectional view of the positioning rod;

[0018] Figure 4 is a schematic diagram of the structure of the jacket;

[0019] Figure 5 is a cross-sectional view of the jacket;

[0020] Figure 6 is a schematic diagram of the structure of the fixture;

[0021] Figure 7 It is a schematic diagram of the structure of the push block;

[0022] Figure 8 is a cross-sectional view of the push block;

[0023] Fig. 9 is a cross-sectional view of the contact;

[0024] Reference numerals in the figure: 1-handle portion, 2-positioning rod, 2.1-guide groove, 2.2-placement base plate, 2.3-first guide hole, 2.4-fastening screw hole, 2.5-positioning hole; 3-displacement sensor; 4-jacket, 4.1-guide portion, 4.1.1-second guide hole, 4.1.2-gasket groove, 4.1.3-circlip groove, 4.2-fixing portion, 4.2.1-installation groove, 4.2.2-spring installation groove, 4.2.3-groove, 4.2.4-limiting hole, 4.2.5-screw fixing hole; 5-touch Head, 5.1-guide rod, 5.2-limiting plate, 5.2.1-limiting through hole, 5.2.2-spring limiting groove; 6-transmission rod; 7-button; 8-push block, 8.1-guide sleeve, 8.1.1-third guide hole, 8.1.2-bushing limiting flange, 8.2-push claw; 9-clamp, 9.1-clamping claw, 9.2-claw hook; 10-round head nut; 11-third spring; 12-second spring; 13-first spring; 14-bushing; 15-limiting column; 16-contact block. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Embodiment 1:

[0027] A handheld snap ring groove measuring device, such as Figure 1 and 2 As shown, it includes a handle portion 1, a positioning rod 2, a displacement sensor 3, a sleeve 4, a contact 5, a transmission rod 6, a button 7, a push block 8, and a clamp 9. The handle portion 1 includes a first cylindrical section and a second cylindrical section, and the diameter of the first cylindrical section is smaller than that of the second cylindrical section. A flange for abutting the positioning rod is provided inside the first cylindrical section. The top of the first cylindrical section is fixed with a round head nut 10. A screw fixing hole is provided in the second cylindrical section.

[0028] like Figure 3As shown, the positioning rod 2 is located inside the handle portion 1, and the top end of the positioning rod 2 abuts against the round head nut 10. In this embodiment, a guide groove 2.1 is provided on the upper part of the positioning rod 2, and a button 7 is slidably connected in the guide groove 2.1, and the button 7 passes through the round head nut 10. A placement base plate 2.2 is provided at the bottom end of the positioning rod 2, and the placement base plate 2.2 abuts against the flange 1.1.1 inside the handle portion. A first guide hole 2.3 is provided longitudinally inside the positioning rod 2, and the first guide hole 2.3 is connected to the guide groove 2.1. The displacement sensor 3 is arranged in the first guide hole 2.3. In order to avoid axial upward movement between the displacement sensor and the positioning rod, a set screw hole 2.4 is provided at the middle position of the positioning rod 2, and the set screw passes through the set screw hole in the positioning rod and abuts against the displacement sensor. A positioning hole 2.5 is coaxially provided on the upper part of the positioning rod and the placement base plate parallel to the central axis direction of the positioning rod, and the transmission rod 6 passes through the positioning hole 2.5. One end of the transmission rod 6 abuts against the button 7, and the other end abuts against the push block 8. The button transmits the pressure to the push block through the transmission rod.

[0029] like Figure 4 and 5 As shown, the sleeve 4 is located in the second cylindrical section 1.2 in the handle portion. In this embodiment, the sleeve 4 includes a guide portion 4.1 and a fixed portion 4.2. The guide portion 4.1 protrudes from the fixed portion 4.2 and extends into the first cylindrical section 1.1 of the handle portion. A second guide hole 4.1.1 is provided inside the guide portion 4.1. A gasket groove 4.1.2 and a retaining spring groove 4.1.3 are provided on the outside of the top end of the guide portion 4.1, and a gasket and a retaining spring are provided in the gasket groove and the retaining spring groove, respectively. An installation groove 4.2.1 for placing a clamp is provided on the outer side of the fixed portion 4.2 in the longitudinal direction, and the installation groove 4.2.1 does not pass through the bottom of the fixed portion. The clamp 9 is rotatably connected to the sleeve 4. In this embodiment, as shown in FIG. Figure 6 As shown, the clamp 9 includes a wedge-shaped clamping claw 9.1 and a claw hook 9.2, and the claw hook 9.2 extends from the outer sleeve and faces the central axis of the device. A spring installation groove 4.2.2 is radially arranged in the inner fixing portion 4.2 of the installation groove, and a third spring 11 is arranged in the spring installation groove 4.2.2, and the end of the third spring 11 abuts against the inner side of the clamping claw 9.1. A spring installation groove 4.2.2 is also longitudinally arranged at the top of the fixing portion 4.2, and a second spring 12 is arranged in the spring installation groove 4.2.2, and the end of the second spring 12 abuts against the inner side of the push block 8. A groove 4.2.3 is arranged at the bottom of the fixing portion 4.2, and a limiting hole 4.2.4 is arranged at the bottom of the fixing portion inside the groove, and a limiting column 15 is fixed inside the limiting hole 4.2.4, and the first spring 13 is sleeved outside the limiting column 15. A screw fixing hole 4.2.5 is arranged on the outer side of the fixing part 4.2, and the position of the screw fixing hole 4.2.5 corresponds to the position of the screw fixing hole 1.2.1 in the handle part. The screw passes through the screw fixing hole in the handle part and the screw fixing hole of the fixing part in sequence to fix the handle part to the outer sleeve.

[0030] like Figure 7 and 8 As shown, the push block 8 is slidably connected with the outer sleeve 4. In this embodiment, the push block 8 includes a guide sleeve 8.1 and a wedge-shaped push claw 8.2, and the push claw 8.2 is located outside the guide sleeve 8.1. A third guide hole 8.1.1 is provided inside the guide sleeve 8.1 for the guide part in the outer sleeve to pass through. A bushing limiting flange 8.1.2 is provided in the guide sleeve 8.1 located inside the third guide hole. A bushing 14 is provided between the guide sleeve 8.1 and the guide part 4.1 in the outer sleeve, and one end of the bushing 14 abuts against the bushing limiting flange 8.1.2, and the other end abuts against the gasket in the guide part 4.1. The wedge-shaped push claw is connected in cooperation with the wedge-shaped clamping claw.

[0031] like Fig. 9 As shown, the contact 5 is located in the second guide hole. In this embodiment, the contact 5 includes a guide rod 5.1 and a limit plate 5.2, and the guide rod 5.1 is located in the second guide hole 4.1.1. In order to avoid the end of the guide rod from directly abutting against the displacement sensor and causing wear on the end of the guide rod, thereby affecting the accuracy of detection, in this embodiment, one end of the guide rod 5.1 is connected to the contact block 16, and the contact block 16 abuts against the displacement sensor 3. The limit plate 5.2 is located in the groove 4.2.3, and a limit through hole 5.2.1 corresponding to the position of the installation groove is provided in the limit plate 5.2, and a spring limit groove 5.2.2 is also provided in the limit plate 5.2, and the first spring 13 abuts against the spring limit groove 5.2.2.

[0032] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A handheld snap ring groove measuring device, characterized in that: The invention comprises a handle portion, a positioning rod, a displacement sensor, a jacket, a contact, a transmission rod, a button, a push block and a clamp; the positioning rod is fixed to the handle portion, a first guide hole is penetrated inside the positioning rod, and the displacement sensor is located in the first guide hole; the jacket is located below the positioning rod, and the jacket is fixed to the handle portion, a second guide hole is arranged inside the jacket, the contact is located in the second guide hole, one end of the contact extends to the outside of the jacket, a first spring is arranged between the contact extending to the outside of the jacket and the jacket, and the other end of the contact abuts against the displacement sensor; the transmission rod is slidably connected to the positioning rod, one end of the transmission rod abuts against the button, and the other end abuts against the push block; the push block is sleeved on the outside of the jacket and slidably connected to the jacket, a second spring is arranged longitudinally between the push block and the jacket, and the push block comprises at least one wedge-shaped push claw; the clamp is rotatably connected to the jacket, a third spring is arranged transversely between the clamp and the jacket, the clamp comprises a wedge-shaped clamp and a claw hook, the wedge clamp is cooperatively connected with the push claw, and the claw hook extends to the outside of the jacket.

2. A handheld snap ring groove measuring device according to claim 1, characterized in that: The handle portion comprises a first cylindrical section and a second cylindrical section, the diameter of the first cylindrical section is smaller than that of the second cylindrical section, and a flange is arranged in the first cylindrical section.

3. A handheld snap ring groove measuring device according to claim 2, characterized in that: The top end of the positioning rod is provided with a guide groove, in which a button is slidably connected, and the bottom end of the positioning rod is provided with a placement bottom plate, which is in contact with the flange.

4. A handheld snap ring groove measuring device according to claim 3, characterized in that: The positioning rod is provided with a positioning hole in the longitudinal direction, and the transmission rod passes through the positioning hole.

5. The handheld snap ring groove measuring device according to claim 1, characterized in that: The push block comprises a guide sleeve, the push claw is located outside the guide sleeve, a third guide hole is opened inside the guide sleeve, and a bushing limiting flange is arranged in the guide sleeve located in the third guide hole.

6. A handheld snap ring groove measuring device according to claim 5, characterized in that: A bushing is arranged between the push block and the outer sleeve, and one end of the bushing is in contact with the bushing limiting flange.

7. The handheld snap ring groove measuring device according to claim 1, characterized in that: The sleeve includes a guide part and a fixing part; a gasket groove and a retaining ring groove are arranged on the outside of the guide part at the top end of the guide part; an installation groove is arranged in the fixing part, and a spring installation groove is arranged radially on the fixing part inside the installation groove, and the third spring is located in the spring installation groove.

8. A handheld snap ring groove measuring device according to claim 7, characterized in that: A groove is provided at the bottom of the fixing part, a limiting hole is provided at the bottom of the fixing part inside the groove, a limiting column is provided inside the limiting hole, and the first spring sleeve is provided outside the limiting column.

9. A handheld snap ring groove measuring device according to claim 8, characterized in that: The contact includes a guide rod and a limit plate, the guide rod is located in the second guide hole, one end of the guide rod is connected to the contact block, the contact block abuts against the displacement sensor, the limit plate is located in the groove, a limit through hole corresponding to the position of the installation groove is provided in the limit plate, a spring limit groove is also provided in the limit plate, and the third spring abuts against the spring limit groove.

10. The handheld snap ring groove measuring device according to claim 1, characterized in that: A nut is fixed on the top of the handle portion, and the button passes through the nut.

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