Large spline plug gauge fixing device

Abstract

The utility model discloses a large spline plug gauge fixing device which comprises a spline plug gauge workpiece, a lower baffle, a positioning slot, an upper baffle, a directional insertion column, an auxiliary positioning rod, a threaded through hole, a threaded bottom hole and a locking bolt. A spline plug gauge workpiece can be extruded, limited and fixed from the upper side face and the lower side face through the upper baffle and the lower baffle matched with the directional inserting columns and the positioning inserting grooves, and the upper baffle and the lower baffle are locked in a penetrating and inserting mode through the multiple locking bolts so that the connection strength of the upper baffle and the lower baffle can be guaranteed. The elastic anti-skid layers arranged on the corresponding side faces of the upper baffle and the lower baffle further improve the friction resistance and the positioning stability of the contact faces of the upper baffle and the lower baffle and the spline plug gauge workpiece, meanwhile, rigid damage to the upper side face and the lower side face of the spline plug gauge workpiece in the extrusion process is reduced, and the whole fixing device is conveniently installed on machining equipment through the auxiliary positioning rod.

Description

Technical Field

[0001] The utility model relates to the technical field of fixing devices, in particular to the technical field of fixing devices for large spline plug gauges.

Background Art

[0002] A spline plug gauge is a precision measuring tool for judging whether the splines on a workpiece are qualified. In order to ensure the dimensional accuracy, position accuracy, shape accuracy and surface quality of the spline plug gauge, precise machining of the spline plug gauge is required. The traditional machining of the spline plug gauge is to manually clamp and fix the splines of the plug gauge. When the size of the spline plug gauge is too large, clamping and fixing through the splines of the plug gauge is likely to cause the spline plug gauge to shake and break away from the fixed state due to unstable clamping. If the clamping and fixing force is increased, although the clamping stability can be increased, excessive pressure is likely to cause deformation and damage to the spline structure of the plug gauge.

Content of the Utility Model

[0003] The purpose of the utility model is to solve the problems in the prior art, and propose a fixing device for a large spline plug gauge, which can squeeze and limit the spline plug gauge workpiece from the upper and lower sides through the cooperation of the upper baffle and the lower baffle with the directional insertion posts and the positioning slots, ensure the connection strength of the two by inserting and locking the upper baffle and the lower baffle with multiple locking bolts, further improve the frictional resistance and positioning stability of the contact surfaces of the two with the spline plug gauge workpiece by the elastic anti-slip layers arranged on the corresponding side surfaces of the upper baffle and the lower baffle, and at the same time reduce the rigid damage to the upper and lower side surfaces of the spline plug gauge workpiece during the extrusion process, and facilitate the installation of the entire fixing device on the processing equipment through the auxiliary positioning rod.

[0004] To achieve the above purpose, the utility model proposes a fixing device for a large spline plug gauge, including a spline plug gauge workpiece, a lower baffle, a positioning slot, an upper baffle, a directional insertion post, an auxiliary positioning rod, a threaded through hole, a threaded bottom hole and a locking bolt. The bottom of the spline plug gauge workpiece is attached with a lower baffle. The diameter of the lower baffle is smaller than the circumferential surface diameter of the spline plug gauge workpiece. A positioning slot is axially penetrated through the center position of the lower baffle. The top of the spline plug gauge workpiece is attached with an upper baffle. The diameter of the upper baffle is smaller than the circumferential surface diameter of the spline plug gauge workpiece. A directional insertion post is axially arranged at the center position of the bottom surface of the upper baffle. The directional insertion post and the positioning slot correspond and match up and down. An auxiliary positioning rod is axially arranged at the center position of the top surface of the upper baffle. A plurality of threaded through holes are evenly arranged around the upper baffle. Threaded bottom holes are arranged at the positions corresponding to the threaded through holes on the lower baffle. A locking bolt is inserted between the threaded through hole and the threaded bottom hole.

[0005] Preferably, an elastic anti-slip layer is evenly adhered to the top surface of the lower baffle.

[0006] Preferably, the diameter of the auxiliary positioning rod is larger than that of the directional insertion post, and a positioning keyway is provided on the auxiliary positioning rod.

[0007] Preferably, a structure-strengthening nut is embedded in the threaded bottom hole, and the locking bolt is connected to the structure-strengthening nut.

[0008] Preferably, an elastic anti-slip layer is evenly adhered to the bottom surface of the upper baffle.

[0009] The beneficial effects of the present utility model: By combining the spline plug gauge workpiece, the lower baffle, the positioning slot, the upper baffle, the directional insertion post, the auxiliary positioning rod, the threaded through hole, the threaded bottom hole and the locking bolt, and through experimental optimization, the spline plug gauge workpiece can be squeezed and limited and fixed from the upper and lower sides by the cooperation of the upper baffle and the lower baffle with the directional insertion post and the positioning slot. The connection strength of the upper baffle and the lower baffle is ensured by inserting and locking a plurality of locking bolts. The friction resistance and positioning stability of the contact surface between the upper baffle and the lower baffle and the spline plug gauge workpiece are further improved by the elastic anti-slip layers provided on the corresponding side surfaces of the upper baffle and the lower baffle. At the same time, the rigid damage to the upper and lower side surfaces of the spline plug gauge workpiece during the extrusion process is reduced, and the entire fixing device can be conveniently installed on the processing equipment through the auxiliary positioning rod.

[0010] The features and advantages of the present utility model will be described in detail through embodiments in conjunction with the accompanying drawings.

Description of the Drawings

[0011] Figure 1 is a schematic structural diagram of the fixing device for the large spline plug gauge of the present utility model.

[0012] In the figure: 1 - spline plug gauge workpiece, 2 - lower baffle, 3 - positioning slot, 4 - upper baffle, 5 - directional insertion post, 6 - auxiliary positioning rod, 7 - threaded through hole, 8 - threaded bottom hole, 9 - locking bolt, 10 - elastic anti-slip layer, 11 - positioning keyway.

Detailed Embodiment

[0013] Refer to Figure 1, the fixing device for the large spline plug gauge of the present utility model includes a spline plug gauge workpiece 1, a lower baffle 2, a positioning slot 3, an upper baffle 4, a directional insertion post 5, an auxiliary positioning rod 6, a threaded through hole 7, a threaded bottom hole 8 and a locking bolt 9. The bottom of the spline plug gauge workpiece 1 is attached with a lower baffle 2. The diameter of the lower baffle 2 is smaller than the circumferential surface diameter of the spline plug gauge workpiece 1. A positioning slot 3 is axially penetrated through the center position of the lower baffle 2. The top of the spline plug gauge workpiece 1 is attached with an upper baffle 4. The diameter of the upper baffle 4 is smaller than the circumferential surface diameter of the spline plug gauge workpiece 1. A directional insertion post 5 is axially arranged at the center position of the bottom surface of the upper baffle 4. The directional insertion post 5 and the positioning slot 3 correspond and fit with each other up and down. An auxiliary positioning rod 6 is axially arranged at the center position of the top surface of the upper baffle 4. A plurality of threaded through holes 7 are evenly arranged around the upper baffle 4. Threaded bottom holes 8 are arranged at the positions corresponding to the threaded through holes 7 on the lower baffle 2. A locking bolt 9 is inserted between the threaded through hole 7 and the threaded bottom hole 8. An elastic anti-slip layer 10 is evenly adhered to the top surface of the lower baffle 2. The diameter of the auxiliary positioning rod 6 is larger than the diameter of the directional insertion post 5. A positioning keyway 11 is arranged on the auxiliary positioning rod 6. A structure strengthening nut is embedded in the threaded bottom hole 8. The locking bolt 9 is connected with the structure strengthening nut. An elastic anti-slip layer 10 is evenly adhered to the bottom surface of the upper baffle 4.

[0014] The present utility model combines the spline plug gauge workpiece 1, the lower baffle 2, the positioning slot 3, the upper baffle 4, the directional insertion post 5, the auxiliary positioning rod 6, the threaded through hole 7, the threaded bottom hole 8 and the locking bolt 9. Through experimental optimization, it can limit and fix the spline plug gauge workpiece 1 from the upper and lower sides by the cooperation of the upper baffle 4 and the lower baffle 2 with the directional insertion post 5 and the positioning slot 3. The connection strength between the upper baffle 4 and the lower baffle 2 is ensured by inserting and locking a plurality of locking bolts 9. The friction resistance and positioning stability of the contact surface between the upper baffle 4 and the lower baffle 2 and the spline plug gauge workpiece 1 are further improved by the elastic anti-slip layers 10 arranged on the corresponding side surfaces of the upper baffle 4 and the lower baffle 2. At the same time, the rigid damage to the upper and lower side surfaces of the spline plug gauge workpiece 1 during the extrusion process is reduced. The whole fixing device can be conveniently installed on the processing equipment through the auxiliary positioning rod 6.

[0015] The above embodiments are illustrative of the present utility model, not restrictive of the present utility model. Any scheme obtained by simply transforming the present utility model belongs to the protection scope of the present utility model.

Claims

1. Large spline plug gauge fixing device, characterized by: The invention comprises a spline plug gauge workpiece (1), a lower baffle plate (2), a positioning slot (3), an upper baffle plate (4), a directional plug column (5), an auxiliary positioning rod (6), a threaded through hole (7), a threaded bottom hole (8) and a locking bolt (9), wherein the bottom of the spline plug gauge workpiece (1) is fitted with a lower baffle plate (2), the diameter of the lower baffle plate (2) is smaller than the diameter of the circumferential surface of the spline plug gauge workpiece (1), a positioning slot (3) is axially penetrated at the center position of the lower baffle plate (2), and the top of the spline plug gauge workpiece (1) is fitted with an upper baffle plate (4), and the upper baffle plate (4) is ) has a diameter smaller than the circumferential surface diameter of the spline plug gauge workpiece (1); a directional plug post (5) is axially arranged at the center position of the bottom surface of the upper baffle (4); the directional plug post (5) and the positioning slot (3) correspond to each other up and down; an auxiliary positioning rod (6) is axially arranged at the center position of the top surface of the upper baffle (4); a plurality of threaded through holes (7) are evenly arranged on the upper baffle (4); threaded bottom holes (8) are arranged on the lower baffle (2) at positions corresponding to the threaded through holes (7); and locking bolts (9) are interspersed between the threaded through holes (7) and the threaded bottom holes (8).

2. The large spline plug gauge fixing device according to claim 1, characterized in that: An elastic anti-slip layer (10) is evenly adhered to the top surface of the lower baffle (2).

3. The large spline plug gauge fixing device according to claim 1, characterized in that: The diameter of the auxiliary positioning rod (6) is greater than the diameter of the directional plug post (5), and a positioning key groove (11) is provided on the auxiliary positioning rod (6).

4. The large spline plug gauge fixing device according to claim 1, characterized in that: A structural reinforcement nut is embedded in the threaded bottom hole (8), and the locking bolt (9) is connected to the structural reinforcement nut.

5. The large spline plug gauge fixing device according to claim 1, characterized in that: An elastic anti-slip layer (10) is evenly adhered to the bottom surface of the upper baffle (4).

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