Tightening gun calibration workbench

Abstract

The utility model relates to a tightening gun calibration workbench which comprises a workbench frame, a base fixing plate and a tightening gun calibration connecting mechanism, and the tightening gun calibration connecting mechanism is fixed to the workbench frame through the base fixing plate. The tightening gun calibration connecting mechanism comprises a sliding adjusting module and a workpiece fixing part. The sliding adjusting module comprises an adjusting handle and a guide rail which are fixed on the base fixing plate, and a sliding block and a locking gear ring which are sequentially arranged on the guide rail; the tightening gun is locked on the sliding block through the locking gear ring, the adjusting handle is connected with the sliding block, and the sliding block is driven to slide on the guide rail by pulling the adjusting handle; the stretching-out head of the tightening gun is connected with a sleeve, the sleeve is completely embedded into the workpiece connector by moving the sliding block, and a workpiece is fixed to the base fixing plate through the workpiece fixing part. A torque sensor is connected between the stretching head of the tightening gun and the sleeve and used for obtaining actual tightening torque information of the tightening gun for calibration. Compared with the prior art, the tightening gun calibration device is suitable for calibration of tightening guns of different models.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of tightening gun calibration, especially to a tightening gun calibration workbench. BACKGROUND

[0002] Tightening process is widely used in product production process of all walks of life, and tightening process generally uses tightening gun. In the use process, in order to ensure the accuracy of the tightening gun, the tightening gun needs to be calibrated regularly.

[0003] The existing tightening calibration platform is mostly for single model torque gun, and it is difficult to adapt to various models of torque gun, so the applicability is not high. SUMMARY

[0004] The utility model discloses a tightening gun calibration workbench, which can be used for calibration of tightening guns of different models.

[0005] The utility model discloses the purpose that can be realized through the following technical scheme:

[0006] A tightening gun calibration workbench, comprising a workbench frame, a base fixing plate and a tightening gun calibration connecting mechanism, the tightening gun calibration connecting mechanism is fixed on the tabletop of the workbench frame through the base fixing plate;

[0007] The tightening gun calibration connecting mechanism comprises a sliding adjustment module and a workpiece fixing part;

[0008] The sliding adjustment module comprises an adjustment handle and a guide rail fixed on the base fixing plate, and a sliding block and a locking gear ring arranged in sequence on the guide rail;The tightening gun is locked on the sliding block through the locking gear ring, the adjustment handle is connected with the sliding block through the extension rod, and the sliding block is driven to slide on the guide rail by pulling the adjustment handle;

[0009] The extension head of the tightening gun is connected with a sleeve, the sleeve is completely embedded in the interface of the workpiece by moving the sliding block, and the workpiece is fixed on the base fixing plate through the workpiece fixing part;The extension head of the tightening gun is connected with the sleeve, and a torque sensor is arranged between the extension head of the tightening gun and the sleeve, which is used for acquiring actual tightening torque information of the tightening gun to calibrate.

[0010] Preferably, an arc-shaped groove that is adapted to the shape of the tightening gun is arranged on the sliding block.

[0011] Preferably, the arc-shaped groove is arranged on the side wall of the sliding block away from the extension head of the tightening gun.

[0012] Preferably, the sliding block is connected with the locking gear ring through the connecting rod.

[0013] One end of the connecting rod is fixed on the slider, and the other end is movably fixed on the locking gear ring, or one end of the connecting rod is fixed on the locking gear ring, and the other end is movably fixed on the slider. The distance between the connecting rod and the locking gear ring is adjusted by adjusting the penetration length of the movable end connecting rod.

[0014] Preferably, the end of the connecting rod to which the movable end is connected is provided with a through-hole limiting structure.

[0015] Preferably, a side wall is provided at the end of the guide rail close to the workpiece, and a limit block is fixed on the side wall away from the workpiece. The maximum stroke of the tightening gun is adjusted by using limit blocks of different sizes, so that when the tightening gun is at the maximum stroke position, its protruding head is completely embedded in the interface of the workpiece through the sleeve.

[0016] Preferably, a protruding bolt is provided on the side wall away from the workpiece, and the limiting block is a limiting nut matched with the protruding bolt.

[0017] Preferably, a plurality of limit nuts are provided, and the number is adjusted according to the actual maximum stroke required.

[0018] Preferably, a protrusion is provided on the side wall away from the workpiece, and the limit block is a sleeve structure whose size is set according to the maximum stroke actually required, and the sleeve structure is sleeved on the protrusion.

[0019] Preferably, the workpiece fixing portion includes a workpiece upper pressing block and a pressing wrench, and the workpiece is fixed by pressing the workpiece upper pressing block downwardly through the pressing wrench.

[0020] Compared with the prior art, the utility model has the following advantages:

[0021] (1) The tightening gun is locked on the slider through the locking gear ring, and the slider is driven to slide on the guide rail by turning the adjustment handle, so that the sleeve connected to the tightening gun extension head is completely embedded in the interface of the workpiece. The actual tightening torque information of the tightening gun is obtained through the torque sensor connected between the tightening gun extension head and the sleeve for calibration. This can realize the calibration of torque guns of different models, and has higher applicability.

[0022] (2) The arc-shaped groove on the slider is adapted to the shape of the tightening gun, which can more firmly support and fix the tightening gun. The arc-shaped groove is set on the side wall of the slider away from the protruding head of the tightening gun, and cooperates with the left and right locking gear rings on the other side to better fix the tightening gun.

[0023] (3) The distance between the slider and the locking tooth ring is adjustable, which is suitable for tightening guns of different models and sizes; and a through-hole limiting structure is provided at the end of the connecting rod, which can limit the maximum distance between the slider and the locking tooth ring, making the device safer and more reliable.

[0024] (4) By using limit blocks of different sizes to adjust the maximum stroke of the tightening gun, the tightening gun can extend its head through the sleeve and be completely embedded in the interface of the workpiece when it is at the maximum stroke position, which is suitable for the calibration of different types of torque guns.

[0025] (5) The limit block is set with bolts and nuts, making the structure more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of the tightening gun calibration workbench;

[0027] Figure 2 A three-dimensional schematic diagram of the connection structure for the tightening gun calibration;

[0028] Figure 3 Calibrate the main view of the connection structure for the tightening gun;

[0029] Figure 4 Calibrate the top view of the connection structure for the tightening gun;

[0030] Figure 5 It is an enlarged schematic diagram of the adjustment mechanism;

[0031] Figure 6 This is an enlarged schematic diagram of the workpiece fixing structure;

[0032] Reference numerals:

[0033] 1-Workbench frame; 2-Base fixing plate; 3-Tightening gun calibration connection mechanism; 4-Sliding adjustment module, 41-Adjustment handle, 411-Extension rod, 42-Guide rail, 43-Slider, 44-Locking gear ring, 45-Connecting rod, 46-Limiting block; 5-Tightening gun; 6-Torque sensor, 61-Adapter; 7-Sleeve; 8-Workpiece; 9-Workpiece fixing part, 91-Workpiece upper pressure block, 92-Down pressure wrench. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are 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 making creative efforts should fall within the scope of protection of the present invention.

[0035] Example

[0036] like Figures 1-4 As shown, this embodiment provides a tightening gun calibration workbench, including a workbench frame 1, a base fixing plate 2 and a tightening gun calibration connection mechanism 3, and the tightening gun calibration connection mechanism 3 is fixed to the table surface of the workbench frame 1 through the base fixing plate 2;

[0037] The tightening gun calibration connecting mechanism 3 comprises a sliding adjustment module 4 and a workpiece fixing portion 9;

[0038] The sliding adjustment module 4 comprises an adjustment handle 41 and a guide rail 42 fixed on the base fixing plate 2, and a sliding block 43 and a locking tooth ring 44 arranged in sequence on the guide rail 42; the tightening gun 5 is locked on the sliding block 43 through the locking tooth ring 44, the adjustment handle 41 is connected with the sliding block 43 through an extension rod 411, and the sliding block 43 is driven to slide on the guide rail 42 by pulling the adjustment handle 41;

[0039] The extension head of the tightening gun 5 is connected with a sleeve 7, the sleeve 7 is completely embedded in the interface of the workpiece 8 by moving the sliding block 43, and the workpiece 8 is fixed on the base fixing plate 2 through the workpiece fixing portion 9 in advance; the extension head of the tightening gun 5 is connected with the sleeve 7 through a torque sensor 6, which is used to obtain the actual tightening torque information of the tightening gun 5 for calibration. Specifically, one end of the torque sensor 6 is connected to the extension head of the tightening gun 5 through an adapter 12, and the other end is connected to the sleeve 7.

[0040] In the embodiment, an arc-shaped groove corresponding to the shape of the tightening gun 5 is arranged on the sliding block 43, and the arc-shaped groove is arranged on the side wall of the sliding block 43 away from the extension head of the tightening gun 5. Figure 5 As shown in the figure, the sliding block 43 is connected with the locking tooth ring 44 through a connecting rod 45; one end of the connecting rod 45 is fixed on the sliding block 43, and the other end is movably fixed on the locking tooth ring 44, or one end of the connecting rod 45 is fixed on the locking tooth ring 44, and the other end is movably fixed on the sliding block 43, and the distance between the connecting rod 45 and the locking tooth ring 44 is adjusted by adjusting the penetration length of the movable end of the connecting rod 45. Preferably, the end of the connecting rod 45 connected with the movable end is provided with a penetration hole limiting structure, which can limit the maximum distance between the sliding block and the locking tooth ring, and the device is safer and more reliable.

[0041] In the embodiment, the end of the guide rail 42 close to the workpiece 8 is provided with a side wall, and the workpiece 8 is fixed with a limiting block 46 away from the side wall, and the maximum stroke of the tightening gun 5 is adjusted by using limiting blocks 46 of different sizes, so that the extension head of the tightening gun 5 is completely embedded in the interface of the workpiece 8 through the sleeve 7 at the maximum stroke position, and specifically, the following schemes are included but not limited to:

[0042] A protruding bolt is arranged away from the side wall of the workpiece 8, and the limiting block 46 is a limiting nut matched with the protruding bolt, and a plurality of limiting nuts are arranged, and the number is adjusted according to the actual required maximum stroke;

[0043] Or a protruding part is arranged away from the side wall of the workpiece 8, and the limiting block 46 is a sleeve structure with a size set according to the actual required maximum stroke, and the sleeve structure is sleeved on the protruding part.

[0044] The workpiece fixing part 9 is not the focus of the present application, and any existing workpiece fixing structure can be used to fix the workpiece 8 on the base fixing plate 2. For example Figure 6 As shown, the specific structure of the workpiece fixing part 9 can be provided with an upper workpiece pressing block 91 and a lower pressing wrench 92, the workpiece 8 is fixed by pressing the upper workpiece pressing block 91 through the lower pressing wrench 92, the control line of the tightening gun 5 is connected to the controller during the tightening gun calibration, the data line of the torque sensor 6 is connected to the calibrator, the calibration program is selected, the torque displayed on the calibrator and the tightening gun controller is recorded, and the correction is made on the controller according to the difference. This is a conventional calibration process.

[0045] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A tightening gun calibration workbench, characterized in that: It comprises a workbench frame (1), a base fixing plate (2) and a tightening gun calibration connection mechanism (3), wherein the tightening gun calibration connection mechanism (3) is fixed on the table surface of the workbench frame (1) through the base fixing plate (2); The tightening gun calibration connection mechanism (3) comprises a sliding adjustment module (4) and a workpiece fixing portion (9); The sliding adjustment module (4) comprises an adjustment handle (41) and a guide rail (42) fixed on the base fixing plate (2), and a slider (43) and a locking toothed ring (44) sequentially arranged on the guide rail (42); the tightening gun (5) is locked on the slider (43) through the locking toothed ring (44); the adjustment handle (41) is connected to the slider (43) through a protruding rod (411); and the slider (43) is driven to slide on the guide rail (42) by pulling the adjustment handle (41); The protruding head of the tightening gun (5) is connected to a sleeve (7), and the sleeve (7) is completely embedded in the interface of the workpiece (8) by moving the slider (43), and the workpiece (8) is fixed on the base fixing plate (2) in advance by the workpiece fixing part (9); a torque sensor (6) is connected between the protruding head of the tightening gun (5) and the sleeve (7), and is used to obtain actual tightening torque information of the tightening gun (5) for calibration.

2. A tightening gun calibration workbench according to claim 1, characterized in that: The slider (43) is provided with an arc-shaped groove adapted to the shape of the tightening gun (5).

3. The tightening gun calibration workbench according to claim 2, characterized in that: The arc-shaped groove is arranged on a side wall of the slider (43) away from the direction of the protruding head of the tightening gun (5).

4. The tightening gun calibration workbench according to claim 1, characterized in that: The slider (43) is connected to the locking gear ring (44) via a connecting rod (45); One end of the connecting rod (45) is fixed on the slider (43), and the other end is movably fixed on the locking toothed ring (44), or one end of the connecting rod (45) is fixed on the locking toothed ring (44), and the other end is movably fixed on the slider (43). The distance between the connecting rod (45) and the locking toothed ring (44) is adjusted by adjusting the penetration length of the movable end connecting rod (45).

5. The tightening gun calibration workbench according to claim 4, characterized in that: The end of the connecting rod (45) connected to the movable end is provided with a through hole limiting structure.

6. The tightening gun calibration workbench according to claim 1, characterized in that: The end of the guide rail (42) close to the workpiece (8) is provided with a side wall, and a limit block (46) is fixed to the workpiece (8) in a direction away from the side wall. By using limit blocks (46) of different sizes to adjust the maximum stroke of the tightening gun (5), the extended head of the tightening gun (5) is completely embedded in the interface of the workpiece (8) through the sleeve (7) when it is at the maximum stroke position.

7. The tightening gun calibration workbench according to claim 6, characterized in that: The workpiece (8) is provided with a protruding bolt in a direction away from the side wall, and the limiting block (46) is a limiting nut matched with the protruding bolt.

8. The tightening gun calibration workbench according to claim 7, characterized in that: There are multiple limit nuts, and the number is adjusted according to the actual maximum stroke required.

9. The tightening gun calibration workbench according to claim 6, characterized in that: The workpiece (8) is provided with a protrusion in a direction away from the side wall, and the limit block (46) is a sleeve structure whose size is set according to the maximum stroke actually required, and the sleeve structure is sleeved on the protrusion.

10. The tightening gun calibration workbench according to claim 1, characterized in that: The workpiece fixing portion (9) comprises a workpiece upper pressing block (91) and a pressing wrench (92), and the workpiece (8) is fixed by pressing the workpiece upper pressing block (91) downwards through the pressing wrench (92).

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