Torsion point inspection device for screw machine

Abstract

The utility model relates to the technical field of torsion point inspection device structural design, in particular to a screw machine torsion point inspection device which comprises a base, a sliding groove is formed in the upper surface of the base, a clamp is arranged on the surface of the base, a sliding strip is arranged on the lower surface of the clamp, a threaded hole is formed in the surface of the clamp, and a threaded rod is installed in the threaded hole in a threaded mode. The threaded rod is connected with a driven bevel gear, the base is connected with a mounting table, a mounting cavity is formed in the mounting table, a plurality of mounting holes are formed in the bottom of the mounting table, rotating rods are rotatably mounted in the mounting holes, one ends of the rotating rods are fixedly sleeved with driving bevel gears, and partial threads are formed in the surfaces of the rotating rods; the multiple rotating rods are sleeved with a workbench in a threaded mode, and the workbench is connected with a point inspection component used for detecting torsion. According to the utility model, the rotating rod and the threaded rod are used for fastening the screw to be tested, manual debugging is not needed, and errors caused by debugging are reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of torque inspection device structure design, and in particular to a torque inspection device for screw machines. Background Technology

[0002] In industrial production, there are strict requirements for the torque control of screws. Before production, the screw machine needs to be checked for torque. The testing steps are to adjust the height of the equipment according to the screw specifications, then conduct a torque test and record the results. The torque check of the screw machine is an important quality control process. It ensures that the screw machine can provide appropriate torque when tightening screws to guarantee product quality and avoid potential damage.

[0003] Currently, the inspection device for screw machines requires manual adjustment of the height of the fastening device and equipment, and then the torque is measured by a sensor. This is not only time-consuming and labor-intensive, resulting in extremely low work efficiency, but also prone to large errors in the final test results due to inaccurate adjustment. Utility Model Content

[0004] The purpose of this utility model is to solve the following shortcomings in the existing technology: the current screw machine inspection device requires manual adjustment of the height of the fastening device and equipment, and then the torque is measured by the sensor. This is not only time-consuming and labor-intensive, resulting in extremely low work efficiency, but also prone to large errors in the final test results due to inaccurate adjustment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A screw machine torque inspection device includes a base. The upper surface of the base has multiple circumferentially shaped grooves. Multiple clamps are provided on the surface of the base, and sliding bars are provided on the lower surface of each clamp. Multiple sliding bars are slidably disposed within the multiple grooves. Threaded holes are provided on the surface of each clamp, and threaded rods are threadedly installed within these holes. Driven bevel gears are fixedly connected to the threaded rods. A mounting platform is fixedly connected to the base via multiple support rods. The mounting platform has an internal mounting cavity and multiple mounting holes at its bottom. Rotary rods are rotatably installed within each of these mounting holes. One end of each rotary rod is fixedly sleeved with a driving bevel gear that meshes with the driven bevel gear. Partial threads are provided on the surface of each rotary rod. Worktables are threaded onto multiple rotary rods. A drive component for controlling the simultaneous rotation of multiple rotary rods is provided on the upper surface of the mounting platform. An inspection component for detecting torque is connected to the worktable.

[0007] Preferably, the inspection component includes a testing platform fixedly installed on the lower surface of the workbench, a torque sensor fixedly installed on the surface of the testing platform, a testing shaft horizontally rotatably installed on the lower surface of the testing platform, a clamping connector fixedly installed on the lower surface of the testing shaft, and a screw to be tested connected to the clamping connector.

[0008] Preferably, the screw to be tested includes a nut portion, the upper surface of which has a groove that matches the clip, and the lower surface of which has a screw portion fixedly installed. Both the surface of the nut portion and the surface of the screw portion have working holes.

[0009] Preferably, the driving component includes multiple driven gears, each of which is fixedly connected to one end of a multiple rotating rod. The multiple driven gears are meshed with a central gear. A servo motor is fixedly connected to the upper surface of the mounting platform, and the output shaft of the servo motor passes through the mounting platform and is fixedly connected to the central gear.

[0010] Preferably, the connector is made of magnet, and the nut is made of ferritic stainless steel (SUS), which has a certain degree of weak magnetism.

[0011] The workbench has a working cavity inside, and a torque motor is fixedly installed in the working cavity. The output shaft of the torque motor is fixedly connected to the detection shaft.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. By using a servo motor in conjunction with a central gear and a driven gear, multiple rotating rods can be driven to rotate. Then, in conjunction with a driving bevel gear, a driven bevel gear, and a threaded rod, the worktable is moved to a designated position, allowing the fixture to tighten the screw to be tested. No manual adjustment is required, which increases work efficiency and reduces errors that may occur during adjustment.

[0014] 2. The clamp connector is made of magnet, and the nut of the screw to be tested is made of ferritic stainless steel, which has a certain degree of weak magnetism. Before the test begins, simply align the clamp connector with the slot on the nut and insert it. This will ensure that the screw remains in the center of the clamp when the worktable moves, eliminating concerns about the screw deviating from the axis or rotating, thus increasing the stability of the test. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the screw machine torque inspection device proposed in this utility model.

[0016] Figure 2 This is a partial three-dimensional structural diagram of the drive component in the screw machine torque inspection device proposed in this utility model.

[0017] Figure 3This is a top view of the fixture and threaded rod in the screw machine torque inspection device proposed in this utility model.

[0018] Figure 4 This is a partial three-dimensional structural diagram of the workbench and testing table in the screw machine torque inspection device proposed in this utility model.

[0019] Figure 5 This is a partial three-dimensional structural diagram of the screw machine torque inspection device proposed in this utility model, showing the detection shaft and the screw to be tested.

[0020] In the diagram: 1. Base, 2. Slide, 3. Clamp, 4. Threaded rod, 5. Driven bevel gear, 6. Mounting platform, 7. Rotating rod, 8. Driving bevel gear, 9. Worktable, 10. Driven gear, 11. Central gear, 12. Servo motor, 13. Detection platform, 14. Torque sensor, 15. Detection shaft, 16. Snap connector, 17. Nut part, 18. Screw part, 19. Support rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0023] Reference Figures 1-5The screw machine torque inspection device includes a base 1. The upper surface of the base 1 has multiple circumferentially shaped grooves 2. Multiple clamps 3 are provided on the surface of the base 1. Slide bars are provided on the lower surface of the clamps 3, and multiple slide bars are slidably disposed within the multiple grooves 2. Threaded holes are provided on the surface of the clamps 3, and threaded rods 4 are threadedly installed within the threaded holes. Driven bevel gears 5 are fixedly connected to the threaded rods 4. A mounting platform 6 is fixedly connected to the base 1 via multiple support rods 19. The mounting platform 6 has a mounting cavity inside and multiple mounting holes at its bottom. Rotating rods 7 are rotatably installed within each of the mounting holes. One end of the rotating rod 7 is fixedly sleeved with a driven bevel gear 5. The drive bevel gear 8 is meshed with the gear 5. The surface of the rotating rod 7 is partially threaded. The worktable 9 is threaded onto multiple rotating rods 7. The upper surface of the mounting platform 6 is provided with a drive component for controlling the rotation of multiple rotating rods 7 together. The drive component includes multiple driven gears 10. The multiple driven gears 10 are fixedly connected to one end of multiple rotating rods 7 respectively. The multiple driven gears 10 are meshed with a central gear 11. A servo motor 12 is fixedly connected to the upper surface of the mounting platform 6. The output shaft of the servo motor 12 passes through the mounting platform 6 and is fixedly connected to the central gear 11. The worktable 9 is connected to an inspection component for detecting torque.

[0024] First, the servo motor 12 is started, driving the central gear 11 to rotate. Then, the driven gear 10, which meshes with the central gear 11, starts to rotate. The driven gear 10 drives the driving bevel gear 8 to rotate via the rotating rod 7, which in turn drives the driven bevel gear 5 to rotate. Then, the threaded rod 4 starts to rotate. Under the action of the slide groove 2 and the slide bar, the fixture 3 moves along the direction of the slide groove 2. Under the combined action of multiple fixtures 3, when the worktable 9 delivers the screw to the closing position of the fixture 3, the screw to be tested is tightened. When the driven gear 10 drives the rotating rod 7 to rotate, because the rotating rod 7 has some threads, the worktable 9, which is threaded, will move vertically downward along the rotating rod 7, delivering the screw to be tested to the closing position of the fixture 3. Because the testing process has a requirement for the clamping position, the distance from the bottom of the screw cap to the surface of the fixture 3 needs to be 3 mm. Because the thread is of fixed length, the worktable 9 will stop moving after moving to the designated position, without affecting the continued movement of the fixture 3.

[0025] The inspection components include a testing platform 13 fixedly mounted on the lower surface of the workbench 9, a torque sensor 14 fixedly mounted on the surface of the testing platform 13, a testing shaft 15 horizontally rotatably mounted on the lower surface of the testing platform 13, and a clamping connector 16 fixedly mounted on the lower surface of the testing shaft 15, to which a screw to be tested is connected. The workbench 9 has a working cavity inside, and a torque motor is fixedly mounted inside the working cavity. The output shaft of the torque motor is fixedly connected to the testing shaft 15.

[0026] Once the screw to be tested is clamped by the fixture 3, the torque motor is started, and the detection shaft 15 will apply torque to the screw to be tested through the clamp connector 16. The torque value at this time can then be obtained through the torque sensor 14.

[0027] The screw to be tested includes a nut part 17. The upper surface of the nut part 17 has a slot that matches the snap fastener 16. The lower surface of the nut part 17 has a screw part 18 fixedly installed. Both the surface of the nut part 17 and the surface of the screw part 18 have working holes. The snap fastener 16 is made of magnet, and the nut part 17 is made of ferritic stainless steel SUS430, which has a certain degree of weak magnetism.

[0028] During testing, insert the connector 16 into the slot of the nut part 17 of the screw to be tested. The magnetic attraction effect generated by the connector 16 on the nut part 17 can hold it in place, which is convenient for subsequent testing.

[0029] In this invention, the servo motor 12 is started, which drives the central gear 11 to rotate. This drives the driven gear 10, which is meshed with the central gear 11, to rotate. The driven gear 10 drives the driving bevel gear 8 to rotate via the rotating rod 7, which in turn drives the driven bevel gear 5 to rotate. Then, the threaded rod 4 starts to rotate. Under the action of the slide groove 2 and the slide bar, the clamp 3 moves along the direction of the slide groove 2. At the same time, the worktable 9 on the rotating rod 7 also starts to move downward. Because the thread on the rotating rod 7 is a fixed distance, the worktable 9 will stop after moving to the specified distance. Finally, under the combined action of multiple clamps 3, when the worktable 9 delivers the screw to the clamp 3 closing position, the screw that needs to be tested is tightened. No manual adjustment is required, which increases work efficiency and reduces the error that may occur during adjustment.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A screw machine torque inspection device, comprising a base (1), characterized in that, The upper surface of the base (1) is provided with multiple circumferential grooves (2). The surface of the base (1) is provided with multiple clamps (3). The lower surface of the clamps (3) is provided with slide bars. Multiple slide bars are slidably arranged in multiple grooves (2). The surface of the clamps (3) is provided with threaded holes. A threaded rod (4) is threadedly installed in the threaded holes. The threaded rod (4) is fixedly connected to a driven bevel gear (5). The base (1) is fixedly connected to a mounting platform (6) through multiple support rods (19). The mounting platform (6) The interior has an installation cavity and multiple installation holes at the bottom. Rotary rods (7) are rotatably installed in each of the multiple installation holes. One end of the rotary rod (7) is fixedly sleeved with a driving bevel gear (8) that meshes with the driven bevel gear (5). The surface of the rotary rod (7) has partial threads. Worktables (9) are threaded onto multiple rotary rods (7). The upper surface of the mounting table (6) is provided with a drive component for controlling the rotation of multiple rotary rods (7) together. The worktable (9) is connected to an inspection component for detecting torque.

2. The screw machine torque inspection device according to claim 1, characterized in that, The inspection component includes a test bench (13) fixedly installed on the lower surface of the workbench (9), a torque sensor (14) fixedly installed on the surface of the test bench (13), a test shaft (15) horizontally rotatably installed on the lower surface of the test bench (13), a clamp connector (16) fixedly installed on the lower surface of the test shaft (15), and a screw to be tested connected to the clamp connector (16).

3. The screw machine torque inspection device according to claim 2, characterized in that, The screw to be tested includes a nut part (17), the upper surface of the nut part (17) is provided with a slot that matches the snap fastener (16), the lower surface of the nut part (17) is fixedly installed with a screw part (18), and both the surface of the nut part (17) and the surface of the screw part (18) are provided with working holes.

4. The screw machine torque inspection device according to claim 1, characterized in that, The driving component includes multiple driven gears (10), which are fixedly connected to one end of multiple rotating rods (7). The multiple driven gears (10) are meshed with a central gear (11). A servo motor (12) is fixedly connected to the upper surface of the mounting platform (6). The output shaft of the servo motor (12) passes through the mounting platform (6) and is fixedly connected to the central gear (11).

5. The screw machine torque inspection device according to claim 3, characterized in that, The connector (16) is made of magnet, and the nut (17) is made of ferritic stainless steel SUS430, which has a certain degree of weak magnetism.

6. The screw machine torque inspection device according to claim 2, characterized in that, The workbench (9) has a working cavity inside, and a torque motor is fixedly installed in the working cavity. The output shaft of the torque motor is fixedly connected to the detection shaft (15).

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