An adjustable torque calibration anti-torsion device

Abstract

The present invention provides an adjustable torque calibration anti-torsion device, including a fixed shell, an inner slider, an adjustment rod and an anti-torsion rod. A slide groove is provided inside the fixed shell, an opening is provided on the surface of the fixed shell, and adjustment rod sockets are provided at both ends of the fixed shell. The inner slider is tightly embedded in the slide groove, the anti-torsion rod passes through the opening and is connected to the inner slider, the anti-torsion rod moves in the opening with the inner slider, the adjustment rod passes through the adjustment rod socket and is connected to the inner slider, and the adjustment rod is used to adjust the position of the inner slider. The spacing of the anti-torsion rods of the present invention is adjustable, which can adapt to the calibration of electric tools of different sizes. The clamping height of the electric wrench is adjustable, and no manual force is required during the calibration process. The electric wrench has a good fitting effect through the inner arc surface of the tool support plate, and can adapt to the working condition where the wrench is tilted at a small angle. The overall structure of the present invention is easy to install and has strong adaptability. It can effectively improve the stability of the vehicle body during the wrench calibration and improve the calibration accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of maintenance equipment, and in particular to an adjustable torque verification anti-torsion device. Background Art

[0002] At present, there are many types of high-torque power tool booster arms in the assembly process of EMUs, locomotives, and vehicles, mainly cantilever booster arms, carbon fiber rod booster arms, rectangular tube booster arms, etc. Since the operating torque of electric torque tools is very large, the operating object is fixed during operation, but during calibration, our mobile calibration vehicle is not suitable for fixing. In order to make the calibration equipment more stable, it is necessary to design an anti-torsion device to offset the reaction force of the electric tool during calibration through internal force. Currently, the existing calibration anti-torsion devices are mainly fixed.

[0003] At present, the calibration of large torque power tools is equipped with anti-torsion assist arms, which brings great inconvenience to the calibration. In particular, the rectangular tube anti-torsion arm is designed to be free to rotate in the Z direction, which is constrained. Therefore, the calibration vehicle needs to find the relative position of the wrench. The output end of the wrench tightening head must be coaxial with the sensor, and the wrench must be placed between the two anti-torsion bars. There is a distance between the anti-torsion bars and the wrench (about 20mm). However, when calibrating the tightening operation, the wrench needs to be in contact with the anti-torsion bar to play an anti-torsion role. When tightening, the reaction force will shake the calibration vehicle as a whole, resulting in unstable calibration accuracy. Summary of the invention

[0004] The object of the present invention is to provide an adjustable torque calibration and anti-torsion device, which can be used in EMU depots, locomotive depots, vehicle depots, and locomotive factories to calibrate the torque of large-torque electric servo torque tools during vehicle production and assembly or overhaul and assembly, especially for calibrating the anti-torsion of large-torque electric tools with power-assist arm devices;

[0005] The present invention provides an adjustable torque verification anti-torsion device, comprising a fixed shell, an inner slider, an adjusting rod and an anti-torsion rod, wherein a slide groove is arranged inside the fixed shell, an opening is arranged on the surface of the fixed shell, and adjusting rod sockets are arranged at both ends of the fixed shell, the inner slider is tightly embedded in the slide groove, the anti-torsion rod passes through the opening and is connected to the inner slider, the anti-torsion rod moves in the opening with the inner slider, the adjusting rod passes through the adjusting rod socket and is connected to the inner slider, and the adjusting rod is used to adjust the position of the inner slider.

[0006] Furthermore, the fixed shell includes two end plates and two side plates, the inner walls of the two side plates are provided with the sliding grooves, the upper opening formed by the two end plates and the two side plates is the opening, and the two end plates are both provided with the adjusting rod sockets.

[0007] Furthermore, the number of the inner sliders and the number of the adjusting rods are both two, the two adjusting rods are respectively inserted into the adjusting rod sockets on the two end plates, and the two adjusting rods are respectively connected to the two inner sliders.

[0008] Furthermore, the two inner sliding blocks are each provided with an anti-torsion bar socket, and the anti-torsion bar is inserted into the two anti-torsion bar sockets.

[0009] Furthermore, it also includes a fastening bolt, the bottom of the anti-torsion rod socket is provided with a bottom through hole, the bottom of the anti-torsion rod is provided with a fastening bolt hole, and the fastening bolt passes through the bottom through hole and is threadedly connected with the fastening bolt hole.

[0010] Furthermore, a fixing hole is provided on the inner sliding block, a stop groove is provided on the hole wall of the fixing hole, one end of the adjusting rod is an annular flange, the annular flange is inserted into the fixing hole, a clamping ring is provided in the stop groove, and the clamping ring is used to prevent the annular flange from falling out of the fixing hole.

[0011] Furthermore, the adjusting rod and the adjusting rod socket are threadedly connected, and an adjusting knob is connected to one end of the adjusting rod away from the slider.

[0012] Furthermore, a tool support plate is installed on both of the two anti-torsion bars, the tool support plate has a mounting hole, the mounting hole is sleeved on the outer wall of the anti-torsion bar, and the tool support plate has a wrench lifting surface, and the wrench lifting surface is used to place a torque wrench.

[0013] Furthermore, a positioning vertical plane is provided on the anti-torsion rod, a locking threaded hole is provided on the hole wall of the mounting hole, a locking bolt is provided in the locking threaded hole, the inner end of the locking bolt is located in the positioning vertical plane, and a butterfly nut is provided at the outer end of the locking bolt.

[0014] Furthermore, the inner side surfaces of the two tool support plates are arc surfaces.

[0015] The technical solution of the present invention realizes adjustable spacing of the anti-torsion bars through a combination of an adjusting rod and an inner sliding block, and can adapt to the calibration of electric tools of different sizes. The anti-torsion bars and the tool support plate can support the electric wrench, and the clamping height is adjustable. No manual force is required during the calibration process. The inner arc surface of the tool support plate can achieve a good fitting effect of the electric wrench, and can adapt to working conditions where the wrench is tilted at a small angle. The overall structure of the present invention is easy to install and has strong adaptability. It can effectively improve the stability of the vehicle body during wrench calibration and improve the calibration accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0019] Figure 3 It is a cross-sectional view of the inner slider structure of the present invention;

[0020] Figure 4 For the present invention Figure 3 Left view of

[0021] Figure 5 For the present invention Figure 3 A top view of

[0022] Figure 6 For the present invention Figure 3 A partial enlarged view of

[0023] Figure 7 It is a structural diagram of a tool support plate of the present invention;

[0024] Figure 8 It is a usage state diagram of the present invention;

[0025] Description of reference numerals:

[0026] 1-fixed housing, 101-end plate, 102-side plate, 2-inner slider, 201-torsion bar socket, 202-bottom through hole, 203-fixing hole, 204-stop groove, 3-adjusting rod, 301-annular flange, 4-torsion bar, 401-fastening bolt hole, 402-positioning vertical plane, 5-slide, 6-opening, 7-adjusting rod socket, 8-fastening bolt, 9-clamp ring, 10-adjusting hand twist, 11-tool support plate, 1101-wrench lifting surface, 1102-locking threaded hole, 1103-arc surface, 1104-mounting hole, 12-locking bolt, 13-butterfly nut, 14-mobile calibration vehicle, 15-electric torque wrench. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0029] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, 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 those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] like Figure 1 and Figure 2As shown, the present invention provides an adjustable torque calibration anti-torsion device, comprising a fixed shell 1, an inner slider 2, an adjusting rod 3 and an anti-torsion rod 4, a slide groove 5 is provided inside the fixed shell 1, an opening 6 is provided on the surface of the fixed shell 1, and adjusting rod sockets 7 are provided at both ends of the fixed shell 1, the inner slider 2 is tightly embedded in the slide groove 5, the anti-torsion rod 4 passes through the opening 6 and is connected to the inner slider 2, the anti-torsion rod 4 moves with the inner slider 2 in the opening 6, the adjusting rod 3 passes through the adjusting rod socket 7 and is connected to the inner slider 2, and the adjusting rod 3 is used to adjust the position of the inner slider 2. The fixed shell 1 is the overall shell of the device. When the device is in use, the bottom of the fixed shell 1 is fixed on the inspection vehicle. The two opposite sides of the interior of the fixed shell 1 are provided with relative slide grooves 5. The inner slider 2 is an inverted T-shape, with the bottom embedded in the slide groove 5, and the step portion at the top is in the opening 6. The sliding inside the fixed shell 1 is achieved by the adjusting rod 3. The sliding of the inner slider 2 drives the movement of the torsion bar 4, thereby supporting wrenches of different sizes and positions. One end of the torsion bar 4 is inside the fixed shell 1, and the other end is outside the fixed shell 1, so the opening 6 is required as the moving path of the torsion bar 4. One end of the adjusting rod 3 is inserted into the fixed shell 1 and connected with the inner slider 2, and the other end is located outside the fixed shell 1 and is manually controlled by the operator.

[0031] like Figure 2 As shown, the fixed housing 1 includes two end plates 101 and two side plates 202, the inner walls of the two side plates 202 are provided with a slide groove 5, the upper opening formed by the two end plates 101 and the two side plates 202 is an opening 6, and the two end plates 101 are provided with an adjustment rod socket 7. Preferably, the fixed housing 1 is a device housing with upper and lower openings formed by the two side plates 202 and the two end plates 101, the two side plates 202 and the two end plates 101 can be connected by bolts, the inner walls of the two side plates 202 are provided with a slide groove 5, the upper opening is the opening 6, and the anti-torsion bar 4 moves in the opening 6 as the inner slider 2 slides.

[0032] There are two inner sliders 2 and two adjusting rods 3 . The two adjusting rods 3 are respectively inserted into the adjusting rod sockets 7 on the two end plates 101 . The two adjusting rods 3 are respectively connected to the two inner sliders 2 .

[0033] like Figure 3 As shown, the two inner sliders 2 are provided with anti-torsion rod sockets 201, and the anti-torsion rods 4 are inserted into the two anti-torsion rod sockets 201. The two inner sliders 2 control the two anti-torsion rods 4. When in use, Figure 8 As shown, the outer wall of the electric torque wrench 15 is located between the two anti-torsion bars 4, and the anti-torsion operation during the torque calibration process is achieved by clamping the two anti-torsion bars 4, reducing or even eliminating the step of manually holding the electric torque wrench to prevent torsion.

[0034] like Figure 3 and Figure 6As shown, the bottom of the torsion bar 4 is also provided with a fastening bolt 8, the bottom of the torsion bar socket 201 is provided with a bottom through hole 202, and the bottom of the torsion bar 4 is provided with a fastening bolt hole 401, and the fastening bolt 8 passes through the bottom through hole 202 and is threadedly connected with the fastening bolt hole 401. After the torsion bar 4 is inserted into the torsion bar socket 201, in order to ensure the stability of the torsion bar 4 during the torque calibration process and to ensure the accuracy of the calibration data, the torsion bar 4 should be fastened. When the fixed housing 1 is composed of the two side plates 202 and the two end plates 101, the upper and lower openings are provided, and a through hole (which can be a light hole or a threaded hole) is provided at the bottom of the torsion bar socket 201, and a threaded hole is provided at the bottom of the torsion bar 4. During installation, a screw is inserted from the lower opening into the through hole of the torsion bar socket 201 to connect and fasten with the threaded hole at the bottom of the torsion bar 4.

[0035] like Figure 3 and Figure 6 As shown, a fixing hole 203 is provided on the inner slider 2, a stop groove 204 is provided on the hole wall of the fixing hole 203, one end of the adjusting rod 3 is an annular flange 301, the annular flange 301 is inserted into the fixing hole 203, a clamping ring 9 is provided in the stop groove 204, and the clamping ring 9 is used to prevent the annular flange 301 from slipping out of the fixing hole 203. The fixing hole 203 is located on the opposite outer side surfaces of the two inner sliders 2, that is, after the annular flange 301 of the adjusting rod 3 is inserted into the fixing hole 203, in order to prevent the adjusting rod 3 from being separated from the inner slider 2, specifically, the clamping ring 9 is selected as a spring clamping ring 9, and the spring clamping ring 9 is inserted into the stop groove 204, so as to prevent the annular flange 301 from slipping out of the positioning hole.

[0036] like Figure 2 and Figure 5 As shown, the adjusting rod 3 is threadedly connected to the adjusting rod socket 7, and the end of the adjusting rod 3 away from the slider is connected with an adjusting knob 10. The adjusting rod 3 is a threaded rod, and the adjusting rod socket 7 is a threaded hole. The movement of the inner slider 2 is adjusted by rotating the adjusting rod 3.

[0037] like Figure 7 As shown, tool trays 11 are installed on the two torsion bars 4. The tool trays 11 have mounting holes 1104. The mounting holes 1104 are sleeved on the outer wall of the torsion bars 4. The tool trays 11 have wrench lifting surfaces 1101. The wrench lifting surfaces 1101 are used to place torque wrenches. The two wrench supporting surfaces are both facing the inner sides of the two tool trays 11. The electric torque wrench 15 is located between the two tool trays 11 and on the two wrench lifting surfaces 1101. The wrench lifting surface 1101 can fit well with the ground of the wrench fixing device after adjusting the height. This structure can ensure that the electric tool is very stable after clamping. No manual force is required during the calibration process.

[0038] like Figure 1 , Figure 3 , Figure 4and Figure 7 As shown: a positioning vertical plane 402 is provided on the anti-torsion bar 4, a locking threaded hole 1102 is provided on the hole wall of the mounting hole 1104, a locking bolt 12 is provided in the locking threaded hole 1102, the inner end of the locking bolt 12 is located in the positioning vertical plane 402, and a butterfly nut 13 is provided at the outer end of the locking bolt 12. The tool support plate 11 is subjected to the force of the electric torque wrench 15, and needs to be fixed on the anti-torsion bar 4. The locking threaded hole 1102, the locking bolt 12 and the butterfly nut 13 are used to fix the tool support plate 11. In order to prevent the tool support plate 11 from rotating, a positioning vertical plane 402 is provided on the outer side of the anti-torsion bar 4, and one end of the locking bolt 12 is fastened on the positioning vertical plane 402.

[0039] like Figure 7 As shown: the inner side surfaces of the two tool support plates 11 are arc surfaces 1103. The arc design has a better fit, and the electric torque wrench 15 may be tilted at a small angle before or during the calibration. The arc surface 1103 can better adapt to this working condition. If it is a straight right-angle surface, it may be necessary to adjust the direction of the calibration vehicle or the electric torque wrench 15. The tool support plate 11 is designed to be stepped, and the arc surface 1103 is in line contact with the side of the wrench fixing device. The wrench can be adapted to a small angle tilt, and the contact line size is always kept unchanged, and the clamping on both sides is stable and reliable.

[0040] When the device is in use, first fix the fixed shell 1 on the mobile inspection vehicle 14, then adjust the adjustment hand knob 10 and the electric torque wrench 15 so that the wrench arm is located between the two anti-torsion bars 4, fix the wrench end of the electric torque wrench 15 to the inspection end of the inspection vehicle, adjust the tool support plate 11, make the arc surface 1103 of the tool support plate 11 contact with the wrench arm of the electric torque wrench 15 (no need to clamp with force), and make the wrench lifting surface 1101 lift the wrench arm. This process is carried out by adjusting the adjustment rod 3 and the fastening bolt 8. After the fixation is completed, start the mobile inspection vehicle 14 to start the inspection. During this process, due to the anti-torsion effect of the anti-torsion bar 4 integrated with the mobile inspection vehicle 14, the force required for human anti-torsion is reduced or even offset, which greatly simplifies the inspection operation. After the inspection is completed, the device can be removed.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An adjustable torque verification anti-torsion device, characterized in that: It includes a fixed shell, an inner slider, an adjusting rod and an anti-torsion rod, wherein a sliding groove is arranged inside the fixed shell, an opening is arranged on the surface of the fixed shell, and adjusting rod sockets are arranged at both ends of the fixed shell. The inner slider is tightly embedded in the sliding groove, the anti-torsion rod passes through the opening and is connected to the inner slider, the anti-torsion rod moves in the opening with the inner slider, the adjusting rod passes through the adjusting rod socket and is connected to the inner slider, and the adjusting rod is used to adjust the position of the inner slider.

2. The adjustable torque verification anti-torsion device according to claim 1, characterized in that: The fixed shell includes two end plates and two side plates, the inner walls of the two side plates are provided with the sliding grooves, the upper opening formed by the two end plates and the two side plates is the opening, and the two end plates are both provided with the adjusting rod sockets.

3. The adjustable torque verification anti-torsion device according to claim 2, characterized in that: There are two inner sliders and two adjusting rods, and the two adjusting rods are respectively inserted into the adjusting rod sockets on the two end plates, and the two adjusting rods are respectively connected to the two inner sliders.

4. The adjustable torque verification anti-torsion device according to claim 3 is characterized in that: The two inner sliding blocks are both provided with anti-torsion bar sockets, and the anti-torsion bars are inserted into the two anti-torsion bar sockets.

5. The adjustable torque verification anti-torsion device according to claim 4, characterized in that: It also includes a fastening bolt. The bottom of the anti-torsion rod socket is provided with a bottom through hole, the bottom of the anti-torsion rod is provided with a fastening bolt hole, and the fastening bolt passes through the bottom through hole and is threadedly connected with the fastening bolt hole.

6. The adjustable torque verification anti-torsion device according to claim 3 is characterized in that: A fixing hole is provided on the inner sliding block, a stop groove is provided on the hole wall of the fixing hole, one end of the adjusting rod is an annular flange, the annular flange is inserted into the fixing hole, a clamping ring is provided in the stop groove, and the clamping ring is used to prevent the annular flange from falling out of the fixing hole.

7. The adjustable torque verification anti-torsion device according to claim 6, characterized in that: The adjusting rod is threadedly connected to the adjusting rod socket, and an adjusting knob is connected to one end of the adjusting rod away from the sliding block.

8. The adjustable torque verification anti-torsion device according to claim 4, characterized in that: A tool support plate is installed on both of the two anti-torsion bars. The tool support plate has a mounting hole. The mounting hole is sleeved on the outer wall of the anti-torsion bar. The tool support plate has a wrench lifting surface. The wrench lifting surface is used to place a torque wrench.

9. The adjustable torque verification anti-torsion device according to claim 8, characterized in that: A positioning vertical plane is provided on the anti-torsion rod, a locking threaded hole is provided on the hole wall of the mounting hole, a locking bolt is provided in the locking threaded hole, the inner end of the locking bolt is located in the positioning vertical plane, and a butterfly nut is provided at the outer end of the locking bolt.

10. The adjustable torque verification anti-torsion device according to claim 9, characterized in that: The inner side surfaces of the two tool support plates are arc surfaces.

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