Auxiliary clamp for thread plug gauge

Abstract

The utility model discloses an auxiliary clamp for a thread plug gauge, which relates to the field of installation and replacement of go gauges and no-go gauges of plug gauges and comprises a fixing rod, connecting plugs are integrally formed at two ends of the fixing rod, one connecting plug is detachably connected with the go gauge through a clamping mechanism, and the other connecting plug is detachably connected with the no-go gauge through the clamping mechanism. The end, close to the fixing rod, of the go gauge and the end, close to the fixing rod, of the no-go gauge are each integrally provided with a butt joint protruding outwards, and butt joint grooves matched with the outer walls of the butt joints are formed in the connecting plugs. According to the utility model, the compression mechanism is arranged, and the compression mechanism rotates to compress or relieve the compression of the joint of the go gauge and the no-go gauge, so that after the go gauge and the no-go gauge are worn, the compression mechanism is unscrewed to take down the go gauge and the no-go gauge and replace a new go gauge and a new no-go gauge, and the compression mechanism is screwed to fix the go gauge and the no-go gauge. And the scrap cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of installation and replacement of through gauges and stop gauges of plug gauges, in particular to an auxiliary clamp for a threaded plug gauge. Background Art

[0002] The two ends of the thread plug gauge are a go gauge and a no-go gauge, which are used to detect whether the internal thread of the workpiece is qualified.

[0003] In the existing thread plug gauge, with the use of go gauge and no-go gauge, especially when unqualified internal threads are detected, the go gauge and no-go gauge are hard squeezed with the unqualified internal threads during rotation, which will cause damage to the go gauge and no-go gauge of the thread plug gauge. At this time, the entire thread plug gauge is scrapped, which is very costly. Utility Model Content

[0004] The purpose of the utility model is to provide a thread plug gauge auxiliary clamp in order to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solutions: a thread plug gauge auxiliary fixture, comprising a metal rod, both ends of the metal rod are integrally formed with plug connectors, one of the plug connectors is detachably connected to a go gauge through a clamping mechanism, and the other plug connector is detachably connected to a stop gauge through a clamping mechanism;

[0006] The through gauge and the stop gauge are both integrally formed with a butt joint protruding outward at one end close to the metal rod, and the plug joint is provided with a butt joint groove matching the outer wall of the butt joint, and the butt joint groove is open at one end away from the metal rod;

[0007] The clamping mechanism in the tightened state is used to clamp the butt joint, and is used to clamp the butt joint inserted into the butt joint groove;

[0008] The clamping mechanism in the loosened state is used to release the clamping of the docking head, and is used to release the clamping of the docking head, so as to facilitate the docking head to move out of the inner cavity of the docking groove.

[0009] As a further solution of the utility model: the clamping mechanism includes a connecting groove opened inside the plug connector, the connecting groove is annular in structure, the inner cavity of the connecting groove is connected to the inner cavity of the docking groove, a fixing rod is arranged on the outside of the plug connector and penetrates into the inner cavity of the connecting groove, a fixing rod is fixedly connected with a clamping ball at one end of the fixing rod located in the inner cavity of the connecting groove, the outer wall of the clamping ball is fixedly connected to one end of a reset spring, and the other end of the reset spring is fixedly connected to the outer periphery of the inner cavity of the connecting groove.

[0010] As a further solution of the utility model: a tightening head is installed on the outer peripheral thread of the plug connector, the inner cavity of the tightening head is integrally formed with an extrusion slope, and the end of the fixing rod located outside the plug connector is integrally formed with a pressure slope, and the extrusion slope is consistent with the pressure slope.

[0011] As a further solution of the utility model: the outer periphery of the joint is formed with an annular groove which matches the outer wall of the pressing ball.

[0012] As a further solution of the utility model: a circular groove for axial sliding of the fixing rod is provided inside the plug connector.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. By setting a clamping mechanism, the rotation of the clamping mechanism can realize the clamping or releasing of the go gauge and the stop gauge joint. Therefore, after the go gauge and the stop gauge are worn, the go gauge and the stop gauge can be removed by loosening the clamping mechanism, and replaced with a new go gauge and the stop gauge, and the clamping mechanism can be tightened to complete the fixation of the go gauge and the stop gauge, thereby reducing the scrapping cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the installation of the clamping mechanism of the utility model;

[0017] Figure 3 For the utility model Figure 3 A partial enlarged view of point A in the middle.

[0018] In the figure: 1. Metal rod; 2. Plug joint; 3. Go gauge; 4. Stop gauge; 5. Docking groove; 6. Docking joint; 7. Tightening head; 8. Connecting groove; 9. Extrusion slope; 10. Fixing rod; 11. Pressure slope; 12. Return spring; 13. Pressing ball. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1 to Figure 3In an embodiment of the utility model, a thread plug gauge auxiliary clamp comprises a metal rod 1, both ends of the metal rod 1 are integrally formed with plug connectors 2, one plug connector 2 is detachably connected with a through gauge 3 through a clamping mechanism, and the other plug connector 2 is detachably connected with a stop gauge 4 through a clamping mechanism; the through gauge 3 and the stop gauge 4 are integrally formed with a butt connector 6 protruding outward at one end close to the metal rod 1, a butt connector 5 is provided inside the plug connector 2 and matches the outer wall of the butt connector 6, and the butt connector 6 is open at one end away from the metal rod 1; the clamping mechanism in a tightened state is used to clamp the butt connector 6, and is used to clamp the butt connector 6 inserted into the butt connector 6; the clamping mechanism in a loosened state is used to release the clamping of the butt connector 6, and is used to release the clamping of the butt connector 6, so as to facilitate the butt connector 6 to move out of the inner cavity of the butt connector 5.

[0021] In this embodiment: during the use of the go gauge 3 and the stop gauge 4, long-term measurement will cause wear of the external threads of the go gauge 3 and the stop gauge 4. After such wear, it is not conducive to the continuous measurement of the go gauge 3 and the stop gauge 4. Forced measurement will cause damage to the internal threads of the measured workpiece.

[0022] At this time, by rotating the clamping mechanism and loosening it, the connecting joints 6 on the go gauge 3 and the no-stop gauge 4 can be pulled out from the connecting groove 5, and then the new go gauge 3 and the no-stop gauge 4 can be replaced, and the connecting joints 6 of the new go gauge 3 and the no-stop gauge 4 can be inserted into the connecting groove 5 again. After the connection is completed, the clamping mechanism can be rotated again, and the newly replaced go gauge 3 and the no-stop gauge 4 can be effectively fixed after the clamping mechanism is tightened.

[0023] Please refer to Figure 2 and Figure 3 The clamping mechanism includes a connecting groove 8 opened inside the plug connector 2, the connecting groove 8 is annular in structure, the inner cavity of the connecting groove 8 is connected to the inner cavity of the docking groove 5, and a fixing rod 10 is arranged outside the plug connector 2 and penetrates into the inner cavity of the connecting groove 8. A clamping ball 13 is fixedly connected to one end of the fixing rod 10 located in the inner cavity of the connecting groove 8, and the outer wall of the clamping ball 13 is fixedly connected to one end of the reset spring 12, and the other end of the reset spring 12 is fixedly connected to the outer periphery of the inner cavity of the connecting groove 8. A tightening head 7 is threadedly installed on the outer periphery of the plug connector 2, and an extrusion inclined surface 9 is integrally formed in the inner cavity of the tightening head 7. A pressure inclined surface 11 is integrally formed at one end of the fixing rod 10 located outside the plug connector 2, and the extrusion inclined surface 9 coincides with the pressure inclined surface 11.

[0024] In this embodiment: when the clamping mechanism is loosened, the tightening head 7 is rotated, and the tightening head 7 drives the extrusion bevel 9 to be screwed in the direction of the through gauge 3 or the stop gauge 4. At this time, the extrusion bevel 9 is gradually separated from the pressure bevel 11. At this time, one end of the fixing rod 10 is no longer restricted, and the reset spring 12 is reset and contracted, pulling the pressing ball 13 to move toward the inner cavity of the connecting groove 8 until the reset spring 12 is completely reset. At this time, the through gauge 3 and the stop gauge 4 can be pulled to realize the pulling of the butt joint 6 and the butt joint groove 5.

[0025] After replacing the new go gauge 3 and the stop gauge 4, insert the docking joints 6 of the new go gauge 3 and the stop gauge 4 into the corresponding docking groove 5 respectively. After the insertion is completed, tighten the clamping mechanism and rotate the tightening head 7 in the opposite direction. At this time, the tightening head 7 drives the extrusion inclined surface 9 to extrude the pressure inclined surface 11. After the pressure inclined surface 11 is subjected to force, it drives multiple fixing rods 10 to move synchronously. The fixing rod 10 pushes the clamping ball 13 to move toward the inner cavity of the docking groove 5. At this time, the reset spring 12 is stretched until the spherical surface of the clamping ball 13 is tightly pressed against the docking joint 6. At this time, the go gauge 3 and the stop gauge 4 are effectively fixed.

[0026] Please refer to Figure 3 The outer periphery of the joint 6 is formed with an annular groove that matches the outer wall of the pressing ball 13.

[0027] In this embodiment: after the docking joint 6 is fully inserted into the docking groove 5, the annular groove and the pressing ball 13 are on the same horizontal line. Therefore, when the outer periphery of the pressing ball 13 presses the docking joint 6, the pressing ball 13 fits tightly with the annular groove, thereby increasing the pressing area and improving the pressing effect.

[0028] Please refer to Figure 3 A circular groove is provided inside the plug connector 2 for the fixing rod 10 to slide axially.

[0029] In this embodiment, during the movement of the fixing rod 10 , the fixing rod 10 moves axially along the circular groove, so the circular groove provides a moving direction for the fixing rod 10 .

[0030] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A thread plug gauge auxiliary fixture, comprising a metal rod (1), characterized in that: Both ends of the metal rod (1) are integrally formed with plug connectors (2), one of the plug connectors (2) is detachably connected to a go gauge (3) via a clamping mechanism, and the other plug connector (2) is detachably connected to a stop gauge (4) via a clamping mechanism; The through gauge (3) and the stop gauge (4) are integrally formed with a butt joint (6) protruding outward at one end close to the metal rod (1); a butt joint (5) is provided inside the plug joint (2) and matches the outer wall of the butt joint (6); and the butt joint (5) is in an open structure at one end away from the metal rod (1); The clamping mechanism in the tightened state is used to clamp the butt joint (6), and is used to clamp the butt joint (6) inserted into the butt joint groove (5); The clamping mechanism in the loosened state is used to release the clamping of the docking joint (6), and is used to release the clamping of the docking joint (6), so as to facilitate the removal of the docking joint (6) from the inner cavity of the docking groove (5).

2. A thread plug gauge auxiliary fixture according to claim 1, characterized in that: The clamping mechanism comprises a connecting groove (8) provided inside the plug connector (2), the connecting groove (8) being annular in structure, the inner cavity of the connecting groove (8) being connected to the inner cavity of the docking groove (5), a fixing rod (10) penetrating into the inner cavity of the connecting groove (8) being arranged outside the plug connector (2), a clamping ball (13) being fixedly connected to one end of the fixing rod (10) located in the inner cavity of the connecting groove (8), the outer wall of the clamping ball (13) being fixedly connected to one end of a return spring (12), and the other end of the return spring (12) being fixedly connected to the outer periphery of the inner cavity of the connecting groove (8).

3. A thread plug gauge auxiliary fixture according to claim 2, characterized in that: The outer peripheral thread of the plug connector (2) is provided with a tightening head (7), the inner cavity of the tightening head (7) is integrally formed with an extrusion bevel (9), and one end of the fixing rod (10) located outside the plug connector (2) is integrally formed with a pressure bevel (11), and the extrusion bevel (9) is consistent with the pressure bevel (11).

4. A thread plug gauge auxiliary fixture according to claim 3, characterized in that: The outer periphery of the butt joint (6) is formed with an annular groove which matches the outer wall of the pressing ball (13).

5. A thread plug gauge auxiliary fixture according to claim 4, characterized in that: A circular groove for axial sliding of the fixing rod (10) is provided inside the plug connector (2).

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