Online calibration tool applied to automatic station tightening tool

Abstract

The utility model discloses an on-line calibration tool applied to an automatic station tightening tool, which comprises a tool frame, the top of the tool frame is provided with a simulation tool plate, the simulation tool plate is provided with a plurality of simulation bolt positioning holes, simulation bolts are inserted into the simulation bolt positioning holes, the simulation bolts are sleeved with torque sensors, and the torque sensors are connected with the simulation tool plate. The bottom of a torsion shaft of the torque sensor is provided with a socket wrench connected with the head of the simulation bolt, and the bottom of the tool frame is provided with a positioning pin. The utility model belongs to the technical field of automobile assembly, and can carry out on-line calibration inspection on each electric gun tightening shaft on an automatic station tightening tool, and then re-debug the torque data of each electric gun tightening shaft without dismounting a certain electric gun tightening shaft on the automatic station tightening tool to carry out calibration inspection. The torque data of each electric gun tightening shaft on the automatic station tightening tool can be quickly detected, and the working efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile assembly, and more specifically, to an online calibration tool used for automatic station tightening tools. Background Art

[0002] In order to ensure accurate, stable and reliable control of fastener torque, high-precision electric gun tightening shafts and tightening shafts are often used to control the torque of key fasteners. During the gearbox assembly process, fasteners are used to connect the oil pump assembly, the torque converter housing assembly and the gearbox housing assembly, and the TCU assembly, which are related to the sealing and reliability of the gearbox assembly. Therefore, electric gun tightening shafts and tightening shafts have become key processes in the gearbox assembly process.

[0003] During production and use, the electric gun tightening shaft and tightening shaft need to be regularly inspected and calibrated using calibration tools to ensure that the sensor output is qualified and meets the requirements, is stable, and the tightening is reliable.

[0004] If the automatic station multi-axis tightening tool is a reused equipment, compared with the new tightening shaft, the supplier will provide a calibration report, so the reused and relocated equipment needs to be calibrated independently. The gearbox fastening points are compactly and densely distributed, so the distribution gap of the tightening shaft is small; the tightening shaft is fixed on the electric gun positioning plate as a whole, and disassembly and inspection and return installation affect the stability of the electric gun, and it needs to be inspected regularly according to the calibration plan, which has a long cycle and high cost, and is extremely unfavorable for actual production operation. Therefore, it is necessary to develop and design a simple calibration tooling, and the equipment does not need to be disassembled to complete the online calibration. Utility Model Content

[0005] The technical problem to be solved by the utility model is aimed at the deficiencies of the prior art. The purpose of the utility model is to provide an online calibration tooling for automatic station tightening tools.

[0006] To achieve the above-mentioned purpose, the utility model provides an online calibration tool for automatic station tightening tools, including a tool frame, a simulation tool plate is provided on the top of the tool frame, a plurality of simulation bolt positioning holes are provided on the simulation tool plate, simulation bolt positioning holes are plugged with simulation bolts, a torque sensor is sleeved on the simulation bolt, the torque sensor includes a sensor body, a torsion shaft and a socket wrench arranged at the bottom and connected to the head of the simulation bolt, and a positioning pin is provided at the bottom of the tool frame.

[0007] Preferably, the simulated bolt positioning hole is a waist-shaped hole structure, and a clamping block adapted to the waist-shaped hole structure is provided at the bottom of the simulated bolt.

[0008] Preferably, the clamping block is provided with a screw hole threadedly connected to the screw rod of the simulated bolt.

[0009] Preferably, one side of the torque sensor is electrically connected to a torque detector.

[0010] Preferably, the positioning pin can be matched with the positioning groove below the tightening shaft of the electric gun.

[0011] Preferably, the tooling frame is a frame structure, a bottom plate is provided at the bottom of the tooling frame, and a positioning plate connected to the bottom surface of the bottom plate is provided on the positioning pin.

[0012] Preferably, mounting holes are provided at both ends of the positioning plate, and screw holes adapted to the mounting holes are provided on the bottom plate;

[0013] Preferably, a positioning flange is provided on the side of the simulated bolt.

[0014] Preferably, a rubber pad is provided on the upper surface of the positioning protrusion.

[0015] The advantages of the utility model are:

[0016] The utility model is applied to the online calibration tool of the automatic station tightening tool, which can perform online calibration inspection on each electric gun tightening shaft on the automatic station tightening tool, and then re-debug the torque data of each electric gun tightening shaft. There is no need to disassemble a certain electric gun tightening shaft on the automatic station tightening tool for calibration inspection, so that the torque data of each electric gun tightening shaft on the automatic station tightening tool can be quickly detected, the work efficiency is high, and the frequent disassembly of the electric gun tightening shaft, which causes the installation position of the electric gun tightening shaft to be inaccurate, affects the bolt assembly efficiency on the gearbox. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a top structural stereogram of the online calibration tooling used for automatic station tightening tools of the utility model;

[0018] Figure 2 It is a bottom-up structural stereogram of the online calibration tooling used for automatic station tightening tools of the utility model;

[0019] Figure 3 This is a structural front view of the online calibration tooling used for automatic station tightening tools of the utility model;

[0020] Figure 4 It is a top view of the structure of the online calibration tooling used for automatic station tightening tools of the utility model;

[0021] Figure 5 It is a structural assembly diagram of the online calibration tooling used for automatic station tightening tools of the utility model;

[0022] Figure 6 It is an enlarged stereoscopic diagram of the structure of the simulated bolt in the utility model;

[0023] Figure 7 It is an enlarged top view of the structure simulating the bolt in the utility model.

[0024] Among them: 1. tooling frame; 2. simulated tooling plate; 3. simulated bolt positioning hole; 4. simulated bolt; 5. torque sensor; 6. torsion shaft; 7. socket wrench; 8. positioning pin; 9. clamping block; 10. torque detector; 11. bottom plate; 12. positioning plate; 13. mounting hole; 14. workbench; 15. positioning boss; 16. positioning convex edge; 17. rubber pad. DETAILED DESCRIPTION

[0025] 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 of 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.

[0026] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0027] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If the terms "first", "second", "third" are described, they are only used for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0028] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present utility model described below can be combined with each other as long as they do not constitute a conflict with each other. The following is a description of the embodiments of the present utility model based on its overall structure.

[0029] See also Figure 1-Figure 7 As shown, the utility model discloses an online calibration tool for automatic station tightening tools, including a tool frame 1, a simulation tool plate 2 is provided on the top of the tool frame 1, a plurality of simulation bolt positioning holes 3 are provided on the simulation tool plate 2, simulation bolt positioning holes 3 are plugged with simulation bolts 4, a torque sensor 5 is sleeved on the simulation bolt 4, the torque sensor 5 includes a sensor body, a torsion shaft 6 and a socket wrench 7 which is arranged at the bottom and connected to the head of the simulation bolt 4, the torque sensor 5 is a conventional device, and a positioning pin 8 is provided at the bottom of the tool frame 1.

[0030] The utility model is applied to the online calibration tool of the automatic station tightening tool. By setting a simulation tool plate 2 corresponding to the bolt hole position on the gearbox housing, the simulation tool plate 2 can be installed on the tool frame 1 by means of threaded connection, welding fixation, etc., and then positioned with the workbench on the assembly line through the positioning pin 8, so that the tool frame 1 and the simulation tool plate 2 are installed below the automatic station tightening tool; then the electric gun of the automatic station tightening tool is driven to descend, so that the tightening sleeve of the electric gun is engaged with the torsion shaft 6 on the torque sensor 5, the electric gun is started, and the torque is transmitted to the simulation bolt 4 through the torsion shaft 6, and a tightening simulation test of the simulation bolt 4 is performed. The torque sensor 5 can measure the torque data output by the electric gun when tightening the simulation bolt 4, and transmit the test data to the control host of the automatic station tightening tool, so as to judge whether the actual torque output by the electric gun tightening shaft of the automatic station tightening tool meets the torque requirement set in the host system. If the test value does not meet the set value, the electric gun tightening shaft can be repaired;

[0031] Among them, the automatic station tightening tool is an automated tightening device integrating multiple electric tightening shafts, and is a conventional tightening device in the prior art.

[0032] In the online calibration tooling of the utility model applied to the automatic station tightening tool, a plurality of simulated bolt locating holes 3 are arranged on the simulated tooling plate 2, and the simulated bolts 4 and the torque sensor 5 can be installed on different simulated bolt locating holes 3, and identification marks corresponding to the screw holes on the gearbox can be arranged next to each simulated bolt locating hole 3; the online calibration tooling can perform online calibration inspection on each electric gun tightening shaft on the automatic station tightening tool, and then re-debug the torque data of each electric gun tightening shaft, without disassembling a certain electric gun tightening shaft on the automatic station tightening tool for calibration inspection, so as to realize rapid detection of the torque data of each electric gun tightening shaft on the automatic station tightening tool, with high working efficiency, avoiding the frequent disassembly of the electric gun tightening shaft causing the installation position of the electric gun tightening shaft to be inaccurate and affecting the bolt assembly efficiency on the gearbox.

[0033] Furthermore, the simulated bolt positioning hole 3 is a waist-shaped hole structure, and a clamping block 9 adapted to the waist-shaped hole structure is provided at the bottom of the simulated bolt 4. In this embodiment, the simulated bolt 4 is positioned by plugging the clamping block 9 with the waist-shaped hole structure, and is quickly installed on the simulated tooling plate 2. The simulated bolt 4 is easy to install and disassemble, and is easy to change the installation position of the simulated bolt 4, thereby realizing the calibration test of the electric gun tightening shaft at different positions on the automatic station tightening tool.

[0034] Furthermore, the block 9 is provided with a screw hole threadedly connected to the screw rod of the simulated bolt 4, and the simulated bolt 4 is connected to the block 9 by threads; a positioning flange 16 is provided on the side of the simulated bolt 4, which can be positioned by the positioning flange 16 and the bottom surface of the socket wrench 7, and then the hexagonal slot in the socket wrench 7 is engaged with the hexagonal screw head on the top of the simulated bolt 4, and a rubber pad 17 can be provided on the upper surface of the positioning flange 16 to play a buffering role to avoid collision impact and affect the service life of the simulated bolt 4.

[0035] Furthermore, one side of the torque sensor 5 is electrically connected to a torque detector 10 , and the torque detector 10 displays test data.

[0036] Furthermore, the positioning pin 8 can be matched with the positioning groove below the tightening shaft of the electric gun.

[0037] Furthermore, the tooling frame 1 is a frame structure, and a base plate 11 is provided at the bottom of the tooling frame 1. A positioning plate 12 connected to the bottom surface of the base plate 11 is provided on the positioning pin 8. The tooling frame 1 is connected to the pin hole on the workbench 14 below the electric gun through the positioning pin 8 on the base plate 11, and the pin hole is provided on the positioning boss 15 of the workbench 14.

[0038] Furthermore, mounting holes 13 are provided at both ends of the positioning plate 12 , and screw holes adapted to the mounting holes 13 are provided on the bottom plate 11 .

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. An online calibration tool for automatic station tightening tools, comprising a tool frame (1), characterized in that: A simulated tooling plate (2) is provided on the top of the tooling frame (1), a plurality of simulated bolt positioning holes (3) are provided on the simulated tooling plate (2), simulated bolts (4) are inserted into the simulated bolt positioning holes (3), a torque sensor (5) is sleeved on the simulated bolts (4), the torque sensor (5) comprises a sensor body, a torsion shaft (6) and a socket wrench (7) provided at the bottom and connected to the head of the simulated bolt (4), and a positioning pin (8) is provided at the bottom of the tooling frame (1).

2. The online calibration tool for automatic station tightening tools according to claim 1 is characterized in that: The simulated bolt positioning hole (3) is a waist-shaped hole structure, and a clamping block (9) adapted to the waist-shaped hole structure is provided at the bottom of the simulated bolt (4).

3. The online calibration tool for automatic station tightening tools according to claim 2 is characterized in that: The clamping block (9) is provided with a screw hole threadedly connected to the screw rod of the simulation bolt (4).

4. The online calibration tool for automatic station tightening tools according to claim 3 is characterized in that: One side of the torque sensor (5) is electrically connected to a torque detector (10).

5. The online calibration tool for automatic station tightening tools according to claim 3 is characterized in that: The positioning pin (8) can be matched with the positioning groove below the tightening shaft of the electric gun.

6. An online calibration tool for automatic station tightening tools according to any one of claims 1 to 5, characterized in that: The tooling frame (1) is a frame structure. A bottom plate (11) is provided at the bottom of the tooling frame (1). A positioning plate (12) connected to the bottom surface of the bottom plate (11) is provided on the positioning pin (8).

7. The online calibration tool for automatic station tightening tools according to claim 6 is characterized in that: Both ends of the positioning plate (12) are provided with mounting holes (13), and the bottom plate (11) is provided with screw holes adapted to the mounting holes (13).

8. The online calibration tool for automatic station tightening tools according to claim 6, characterized in that: A positioning flange (16) is provided on the side of the simulated bolt (4).

9. The online calibration tool for automatic station tightening tools according to claim 8, characterized in that: A rubber pad (17) is provided on the upper surface of the positioning protrusion (16).

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