Screwing device and sensor screwing system

Abstract

The utility model relates to the technical field of sensor assembly tools, in particular to a screwing device and a sensor screwing system. The screwing device comprises a first supporting seat, a second supporting seat, an electric wrench and a first connecting piece, the second supporting seat and the first supporting seat are arranged in a spaced mode, and the second supporting seat is used for supporting one workpiece; the electric wrench is arranged on the first supporting seat; the first connecting piece is connected to the electric wrench, and the first connecting piece is used for being connected with another workpiece; the electric wrench can drive the first connecting piece to rotate relative to the first supporting base. According to the screwing device and the sensor screwing system, one workpiece is driven to rotate relative to the second supporting seat through the electric wrench and the first connecting piece, and then the two workpieces are driven to rotate mutually, so that the two workpieces are screwed or unscrewed mutually, the disassembly and assembly cost and potential safety hazards are reduced, and operation is simplified.

Description

Technical Field

[0001] The present application relates to the technical field of sensor assembly tooling, and in particular to a tightening device and a sensor tightening system. Background Art

[0002] A sensor (English name: transducer / sensor) is a detection device that can sense the information being measured and can transform the sensed information into electrical signals or other required forms of information output according to certain rules to meet the requirements of information transmission, processing, storage, display, recording and control. The shapes of sensors include cylindrical, thin, square, long strips, etc.

[0003] A cylindrical sensor usually includes a cylinder and end caps threadedly connected to both ends of the cylinder. When such a cylindrical sensor is in use, if the locking torque between the end cap and the cylinder is insufficient, the end cap will gradually loosen in a vibration environment, causing the sensor to fail.

[0004] In the prior art, the end caps of such cylindrical sensors are usually tightened by machines or manually. The machines have strict requirements on the size of the sensors and have a small scope of application. Manufacturing a separate machine to tighten the end caps of sensors of specific sizes will increase production costs. When tightening or loosening the sensor manually, two people are required to tighten the end caps at both ends at the same time, and a long torsion bar is also required, which is not only complicated to operate but also poses a safety hazard. Utility Model Content

[0005] The embodiments of the present application aim to provide a tightening device and a sensor tightening system, so as to at least improve the problems of high assembly and disassembly cost, complicated operation and high safety hazard when tightening or loosening two workpieces.

[0006] In order to solve the above technical problems, the embodiments of the present application adopt the following technical solutions:

[0007] In a first aspect, an embodiment of the present application provides a tightening device for tightening two workpieces that cooperate with each other, the tightening device comprising a first support seat, a second support seat, an electric wrench and a first connecting member, the second support seat being spaced apart from the first support seat, the second support seat being used to support one of the workpieces; the electric wrench being disposed on the first support seat; the first connecting member being connected to the electric wrench, the first connecting member being used to connect the other workpiece; wherein the electric wrench can drive the first connecting member to rotate relative to the first support seat.

[0008] In some embodiments, the first support seat is provided with a first slot, and one end of the electric wrench is inserted into the first slot.

[0009] In some embodiments, the second support seat is provided with a second slot for one of the workpieces to pass through and to limit the circumferential position of one of the workpieces; along the rotation axis direction of the first connecting member, the second slot at least partially overlaps with the first slot.

[0010] In some embodiments, the first support seat includes a first base plate and a first support plate connected to each other, the first support plate is perpendicular to the first base plate, and the first card slot is arranged on the first support plate; the second support seat includes a second base plate and a second support plate connected to each other, the second support plate is perpendicular to the second base plate, and the second card slot is arranged on the second support plate; wherein, the first support plate is arranged parallel to the second support plate.

[0011] In some embodiments, the first bottom plate is provided with a first fixing hole, and the first fixing hole is used to connect with the work surface.

[0012] In some embodiments, the second bottom plate is provided with a second fixing hole, and the second fixing hole is used to connect with the work surface.

[0013] In some embodiments, the tightening device further includes a second connecting member, one end of the second connecting member is inserted into the second slot, and the other end of the second connecting member is used to connect to one of the workpieces.

[0014] In some embodiments, a fixing groove and a clamping portion are respectively provided at both ends of the second connecting member; the fixing groove is used to connect one of the workpieces; the clamping portion is inserted into the second clamping groove, and the second clamping groove can limit the circumferential position of the clamping portion.

[0015] In some embodiments, the electric wrench includes an output shaft and a clamping sleeve; the output shaft is passed through the clamping sleeve, and the output shaft is connected to the first connecting member and outputs torque; the clamping sleeve is passed through the first slot, and the first slot limits the circumferential position of the clamping sleeve.

[0016] In some embodiments, two ends of the first connecting member are respectively provided with a connecting hole and a connecting column, the connecting hole is used for detachable connection with one of the workpieces, and the connecting column is connected to the output shaft.

[0017] In a second aspect, an embodiment of the present application provides a sensor tightening system, which includes a sensor and a tightening device as described in any one of the above items, wherein the sensor includes a cylinder, a first end cover and a second end cover, the first end cover and the second end cover are respectively threadedly connected to the two ends of the cylinder; the second support seat is used to support the second end cover, and the first connecting member is used to connect the first end cover.

[0018] Different from the related art, the tightening device and sensor tightening system of the embodiments of the present application drive a workpiece to rotate relative to the second support seat through an electric wrench and a first connecting member, and then drive the two workpieces to rotate relative to each other, thereby tightening or loosening the two workpieces relative to each other, reducing disassembly and assembly costs and safety hazards, and simplifying operations.

[0019] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] One or more embodiments are exemplarily described by corresponding drawings, which do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and the figures in the drawings do not constitute proportional limitations unless otherwise stated.

[0021] Figure 1 is a schematic structural diagram of a tightening device according to an embodiment of the present application;

[0022] Figure 2 yes Figure 2 A schematic diagram of the structure of the first support seat and the electric wrench;

[0023] Figure 3 yes Figure 2 An exploded view of the second support seat and the second connecting member;

[0024] Figure 4 yes Figure 2 A cross-sectional view of the first connecting member;

[0025] Figure 5 yes Figure 2 A schematic structural diagram of the first connecting member;

[0026] Figure 6 yes Figure 2 A schematic diagram of the structure of the middle sleeve;

[0027] Figure 7 It is a schematic diagram of the sensor structure.

[0028] The reference numerals in the specific implementation manner are as follows:

[0029] 100. Tightening device;

[0030] 1. First support seat; 11. First fixing hole; 12. First slot; 13. First bottom plate; 14. First support plate;

[0031] 2. Second support seat; 21. Second fixing hole; 22. Second slot; 23. Second bottom plate; 24. Second support plate;

[0032] 3. Electric wrench; 31. Snap-on sleeve;

[0033] 4. first connecting member; 41. connecting hole; 42. connecting column;

[0034] 5. sleeve; 51. connecting groove;

[0035] 6. second connecting member; 61. fixing groove; 611. second surface; 62. clamping portion;

[0036] 200, sensor; 201, cylinder; 202, first end cover; 2021, through hole; 203, second end cover; 2031, first surface;

[0037] 300. Working surface; 301. Third fixing hole. DETAILED DESCRIPTION

[0038] In order to facilitate the understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0040] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application 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 a limitation on the embodiments of the present application.

[0041] In the description of the embodiments of the present application, the use of words such as "first" and "second" to define components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meanings and therefore cannot be understood as limiting the scope of protection of the present application. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0042] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0043] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0044] In the prior art, two workpieces that fit together are usually tightened by a machine or manually. When tightened by a machine, it is necessary to customize a machine that matches the size of the workpiece. When workpieces of this size are no longer produced, the machine can no longer be used, thereby increasing production costs. When tightened manually, two people are required to tighten the two workpieces at the same time, which results in high labor costs. Moreover, when the tightening torque between the two workpieces is required to be high, a longer torsion bar is required to rotate the two workpieces, which results in greater safety hazards. The above problems also occur when the two workpieces are loosened.

[0045] In order to improve the above problems, the present application provides a tightening device 100, which is used to tighten two workpieces that fit together. Figure 1 As shown, the tightening device 100 includes a first support seat 1, a second support seat 2, an electric wrench 3 and a first connecting member 4; the first support seat 1 and the second support seat 2 can be arranged on the working surface 300, the electric wrench 3 is arranged on the first support seat 1, and the first connecting member 4 is connected to the electric wrench 3; the second support seat 2 is arranged at a distance from the first support seat 1, the second support seat 2 is used to support one of the workpieces, and the first connecting member 4 is used to connect the other workpiece. Thus, when the electric wrench 3 is working, the electric wrench 3 can drive the first connecting member 4 to rotate relative to the first support seat 1 and the working surface 300, and then drive the two workpieces to rotate relative to each other, so as to tighten or loosen the two workpieces relative to each other. It can be understood that the electric wrench 3 includes an output shaft (not shown), which is connected to the first connecting member 4 and outputs torque. Among them, the rotation axis of the first connecting member 4 is the first axis.

[0046] It can be understood that the tightening device 100 can also be used to simultaneously tighten multiple workpieces that match each other. For example, the two ends of the first workpiece are respectively provided with a second workpiece and a third workpiece that are threaded together. The second support seat 2 is used to support the second workpiece, and the first connecting member 4 is used to connect the third workpiece. The third workpiece is driven to rotate by the electric wrench 3 so that the third workpiece and the first workpiece, and the second workpiece and the first workpiece are tightened respectively.

[0047] In the embodiment of the present application, the tightening device 100 is used to tighten and assemble the sensor 200 for illustration, and the sensor 200 includes a cylinder 201, a first end cover 202, and a second end cover 203, and the first end cover 202 and the second end cover 203 are respectively threadedly connected to the two ends of the cylinder 201. The second support seat 2 is used to support the second end cover 203, and the first connecting member 4 is used to connect the first end cover 202. The electric wrench 3 drives the first end cover 202 to rotate so that the first end cover 202 and the cylinder 201, and the second end cover 203 and the cylinder 201 are respectively tightened.

[0048] In the embodiment of the present application, the electric wrench 3 is configured so that its output shaft rotates around the first axis, thereby driving a workpiece to rotate around the first axis; and before the electric wrench 3 starts working, the two workpieces can be preliminarily screwed; so that when the electric wrench 3 is working, the two workpieces can be tightened. Only one person is needed to perform the above operation, which reduces labor costs, and no manual screwing or torsion bar is required, which is conducive to reducing safety hazards. The two workpieces can also be loosened by the tightening device 100, which also reduces the disassembly and assembly costs and safety hazards, and simplifies the operation.

[0049] For the above-mentioned working surface 300, the working surface 300 can be a desktop or a ground, as long as it can fix the first support seat 1 and the second support seat 2. The working surface 300 can be a plane or a curved surface. In the embodiment of the present application, a plane is used as an example for description. Figure 1 The working surface 300 is provided with a third fixing hole 301, and the third fixing hole 301 is used to connect with the first support seat 1 or the second support seat 2. Optionally, the third fixing hole 301 is a threaded hole.

[0050] In particular, if Figure 1As shown, the working surface 300 is provided with a plurality of groups of third fixing holes 301 in a direction parallel to the first axis, and each group of third fixing holes 301 is used to connect with the first support seat 1, or each group of third fixing holes 301 is used to connect with the second support seat 2. Then the positions of the first support seat 1 and the second support seat 2 on the working surface 300 can be adjusted in a direction parallel to the first axis, and then the distance between the second support seat 2 and the first support seat 1 in a direction parallel to the first axis is adjusted to adapt to workpieces of different lengths, so as to expand the scope of application of the tightening device 100 and reduce the production cost of the workpiece. It is understandable that the above effect can be achieved by configuring one of the first support seat 1 and the second support seat 2 to be adjustable in the position of the working surface 300. Optionally, the working surface 300 is also provided with a plurality of groups of third fixing holes 301 in a direction perpendicular to the first axis, then the positions of the first support seat 1 and the second support seat 2 on the working surface 300 can be adjusted in a direction perpendicular to the first axis, or the working surface 300 can be installed with a plurality of tightening devices 100.

[0051] For the first support seat 1, Figure 1 and Figure 2 As shown, the first support seat 1 is provided with a first fixing hole 11, and the first fixing hole 11 is used to connect with the working surface 300. There are multiple first fixing holes 11, and they are arranged at intervals in a direction parallel to the working surface 300. The first fixing holes 11 can be connected with the third fixing holes 301 by screws or bolts to fix the first support seat 1 to the working surface 300. Optionally, the first fixing holes 11 are round holes, and the number is four.

[0052] In some embodiments, Figure 2 As shown, the first support seat 1 is provided with a first card slot 12, and one end of the electric wrench 3 is inserted into the first card slot 12, so as to connect the electric wrench 3 to the first support seat. Further, the electric wrench 3 includes a clamping sleeve 31, and the clamping sleeve 31 is inserted into the first card slot 12. The first card slot 12 is used to limit the circumferential position of the clamping sleeve 31, that is, to prevent the first card slot 12 from rotating around the first axis relative to the first support seat 1. For example, Figure 1 As shown, the first clamping groove 12 is arranged in a direction parallel to the first axis, and the first clamping groove 12 is rectangular; the clamping sleeve 31 extends in a direction parallel to the first axis, and planes are arranged on opposite sides of the outer peripheral surface of the clamping sleeve 31, and the two planes are respectively in contact with two opposite inner walls of the first clamping groove 12, thereby preventing the clamping sleeve 31 from rotating around the first axis relative to the first support seat 1. In addition, the clamping sleeve 31 can translate relative to the first support column along the direction parallel to the first axis to allow the distance between the electric wrench 3 and the second support column to be shortened, thereby overcoming the problem of shortening the distance between the two workpieces when the two workpieces are tightened.

[0053] In some embodiments, Figure 2As shown, the first support seat 1 includes a first bottom plate 13 and a first support plate 14 connected to each other, and the first support plate 14 is perpendicular to the first bottom plate 13. The first bottom plate 13 is used to connect with the working surface 300, and the first fixing hole 11 is provided on the first bottom plate 13; the first support plate 14 is used to connect with the electric wrench 3, and the first slot 12 is provided on the first support plate 14. In some embodiments, the output shaft is passed through the clamping sleeve 31, that is, the output shaft passes through the first slot 12, and the first connecting member 4 and the motor part of the electric wrench 3 can be located on opposite sides of the first support plate 14 respectively.

[0054] For the second support seat 2, Figure 1 As shown, the second support seat 2 is provided with a second fixing hole 21, and the second fixing hole 21 is used to connect with the working surface 300. The number of the second fixing holes 21 is multiple, and they are arranged at intervals in a direction parallel to the working surface 300. The second fixing holes 21 can be connected with the third fixing holes 301 by screws or bolts to fix the second support seat 2 to the working surface 300. Optionally, the second fixing holes 21 are round holes, and the number is four.

[0055] In some embodiments, Figure 3 As shown, the second support seat 2 is provided with a second clamping groove 22, and the second clamping groove 22 is provided for one of the workpieces to pass through and to limit the circumferential position of one of the workpieces, that is, to prevent the workpiece from rotating around the first axis relative to the second support seat 2. It can be understood that along the direction of the rotation axis of the first connecting member 4, the second clamping groove 22 at least partially overlaps with the first clamping groove 12, that is, along the direction parallel to the first axis, the second clamping groove 22 at least partially overlaps with the first clamping groove 12, so that the first axis can pass through the first clamping groove 12 and the second clamping groove 22 at the same time, which is conducive to reducing the component force of the first support seat 1 on the electric wrench 3, reducing the component force of the second support seat 2 on the workpiece, and reducing the damage to the first support seat 1, the electric wrench 3, the second support seat 2 and the workpiece.

[0056] In some embodiments, Figure 3 As shown, the second support seat 2 includes a second bottom plate 23 and a second support plate 24 connected to each other, and the second support plate 24 is perpendicular to the second bottom plate 23. The second bottom plate 23 is used to connect with the working surface 300, and the second fixing hole 21 is provided on the second bottom plate 23; the second support plate 24 is used to connect with a workpiece, and the second slot 22 is provided on the second support plate 24.

[0057] It can be understood that both the first bottom plate 13 and the second bottom plate 23 are used to connect with the working surface 300, so the first bottom plate 13 is parallel to the second bottom plate 23. Along the direction parallel to the first axis, the second card slot 22 at least partially overlaps with the first card slot 12, and in the embodiment of the present application, the first card slot 12 is opened along the thickness direction of the first support plate 14, and the second card slot 22 is opened along the thickness direction of the second support plate 24, so the first support plate 14 is arranged in parallel with the second support plate 24.

[0058] Regarding the electric wrench 3 mentioned above, the electric wrench 3 may include a motor (not shown) to drive the output shaft to rotate.

[0059] For the first connecting member 4, Figure 4 As shown, the first connecting member 4 is provided with a connecting hole 41, and the connecting hole 41 is used to be detachably connected to one of the workpieces, thereby driving one of the workpieces to rotate synchronously with the first connecting member 4.

[0060] In some embodiments, Figure 4 and Figure 5 As shown, the first connecting member 4 is provided with a connecting column 42, and the connecting column 42 is connected to the electric wrench 3, specifically, it can be connected to the output shaft, so as to connect the first connecting member 4 to the electric wrench 3. Optionally, the connecting hole 41 and the connecting column 42 are respectively provided at both ends of the first connecting member 4.

[0061] In some embodiments, Figure 1 As shown, the tightening device 100 also includes a sleeve 5, one end of which is connected to the output shaft of the electric wrench 3. Figures 4 to 6 , a connecting groove 51 is provided at the other end of the sleeve 5; the connecting column 42 is detachably connected to the connecting groove 51. That is, the first connecting member 4 is detachably connected to the sleeve 5, which is convenient for replacing the first connecting member 4. The first connecting member 4 can have multiple models, and different models of first connecting members 4 are used to connect with different models of workpieces, thereby further expanding the application range of the tightening device 100 and reducing the production cost of the workpiece. Among them, the connecting groove 51 and the connecting column 42 can both extend along the first axis.

[0062] It should be noted that when the sleeve 5 rotates around the first axis, it needs to drive the connecting column 42 to rotate around the first axis, so as to drive a workpiece to rotate around the first axis. The connecting groove 51 and the connecting column 42 can be configured as follows: along the first axis, the cross-section of the connecting groove 51 and the cross-section of the connecting column 42 are both polygonal, and the cross-section of the connecting groove 51 and the cross-section of the connecting column 42 are the same in shape and size. For example, Figures 4 to 6As shown, the cross-section of the connecting groove 51 and the cross-section of the connecting column 42 are both regular hexagons and have the same size, so that the connecting column 42 can be tightly matched with the connecting groove 51. When the sleeve 5 rotates around the first axis, the inner wall of the connecting groove 51 squeezes the outer surface of the connecting column 42 to drive the connecting column 42 to rotate around the first axis. It can be understood that the connecting column 42 can translate relative to the sleeve 5 in a direction parallel to the first axis to allow the distance between the first connecting member 4 and the second supporting column to be shortened, thereby overcoming the problem of shortening the distance between the two workpieces when the two workpieces are tightened.

[0063] In some embodiments, Figure 1 As shown, the tightening device 100 further includes a second connecting member 6, one end of which is inserted into the second slot 22, and the other end of which is used to connect one of the workpieces. Figure 7 As shown, the second connecting member 6 is provided with a fixing groove 61, and the fixing groove 61 is used to connect one of the workpieces, that is, one of the workpieces can be placed in the fixing groove 61. The fixing groove 61 can extend along the first axis.

[0064] It should be noted that when the workpiece connected to the first connecting member 4 rotates around the first axis, the other workpiece needs to be stationary relative to the working surface 300. The fixing groove 61 can be configured to prevent the other workpiece from rotating around the first axis.

[0065] In some embodiments, Figure 3 As shown, the second connecting member 6 is provided with a clamping portion 62, which is inserted into the second clamping groove 22. The second clamping groove 22 can limit the clamping portion 62 in the circumferential direction, that is, prevent the clamping portion 62 from rotating around the first axis relative to the second support seat 2. For example, Figure 3 As shown, the second clamping groove 22 is arranged in a direction parallel to the first axis, and the second clamping groove 22 is rectangular; the clamping portion 62 extends in a direction parallel to the first axis, and planes are arranged on opposite sides of the outer peripheral surface of the clamping portion 62, and the two planes are respectively in contact with two opposite inner walls of the second clamping groove 22, thereby preventing the clamping portion 62 from rotating around the first axis relative to the second support seat 2. In addition, along the direction parallel to the first axis, the clamping portion 62 can translate relative to the second support column to allow the distance between the second connecting member 6 and the first support column to be shortened, thereby overcoming the problem of shortening the distance between the two workpieces when the two workpieces are tightened. It can be understood that the clamping portion 62 and the fixing groove 61 are respectively arranged at both ends of the second connecting member 6.

[0066] Furthermore, the second connecting member 6 is connected to the second slot 22 via the clamping portion 62, so that the second connecting member 6 is detachably connected to the second support seat 2, which facilitates replacement of the second connecting member 6. The second connecting member 6 can have multiple models, and different models of second connecting members 6 are used to connect with different models of workpieces, thereby further expanding the application scope of the tightening device 100 and reducing the production cost of the workpiece.

[0067] In some embodiments, Figure 2 and Figure 3 As shown, the first clamping groove 12 and the second clamping groove 22 both extend in a direction perpendicular to the working surface 300. Thus, the position of the clamping sleeve 31 on the first support seat 1 can be adjusted in the direction perpendicular to the working surface 300, and the position of the clamping portion 62 on the second support seat 2 can be adjusted. That is, in the direction perpendicular to the working surface 300, the positions of the electric wrench 3 and the second connecting member 6 relative to the working surface 300 can be adjusted to improve the problem of the protruding portion on the outer peripheral surface of the workpiece interfering with the working surface 300. The outer peripheral surface of the workpiece here refers to the surface of the workpiece around the first axis.

[0068] The embodiment of the present application further provides a sensor tightening system, including a rotating device 100 and a sensor 200 .

[0069] like Figure 7 As shown, the sensor 200 is cylindrical, and the sensor 200 includes a cylinder 201, a first end cover 202 and a second end cover 203, and the first end cover 202 and the second end cover 203 are respectively threadedly connected to the two ends of the cylinder 201. Among them, the central axis of the cylinder 201, the first end cover 202 and the second end cover 203 are all the first axis. It should be noted that in the embodiment of the present application, the first end cover 202 and the second end cover 203 are respectively threadedly connected to the two ends of the cylinder 201, and the first end cover 202 and the second end cover 203 are two workpieces that indirectly cooperate with each other; the cylinder 201 can also be integrally arranged with the first end cover 202 or the second end cover 203, and the first end cover 202 and the second end cover 203 are two workpieces that directly cooperate with each other.

[0070] like Figure 7 As shown, the first end cover 202 is provided with a plurality of through holes 2021, and the plurality of through holes 2021 are arranged at intervals around the first axis. The through holes 2021 can be connected with screws or bolts, so as to fix the first end cover 202 to the first connecting member 4 or the second connecting member 6, so as to make the first end cover 202 rotate around the first axis, or prevent the first end cover 202 from rotating around the first axis. Optionally, the first through hole 2021 is cylindrical, the number of the first through holes 2021 is four, and the four first through holes 2021 are arranged at equal angles around the first axis.

[0071] In some embodiments, the through hole 2021 is used to connect with the connecting hole 41 to connect the first end cover 202 to the first connecting member 4, so that the first end cover 202 and the first connecting member 4 rotate synchronously. The connecting hole 41 and the through hole 2021 can be connected by screws or bolts. Optionally, the number of the connecting holes 41 is multiple, and the connecting holes 41 correspond to the through holes 2021 one by one, and the number of the connecting holes 41 can be four. Optionally, the connecting hole 41 is a threaded hole.

[0072] like Figure 7 As shown, the outer circumference of the second end cover 203 is provided with a first surface 2031, and the first surface 2031 can be a plane, a curved surface, etc. The first surface 2031 is spaced from the outer surface of the second end cover 203, and the first surface 2031 is used to contact the first connecting member 4 or the second connecting member 6, so as to prevent the first end cover 202 from rotating around the first axis. Optionally, the first surface 2031 is a plane, and the number of the first surfaces 2031 is two, and the two first surfaces 2031 are respectively arranged on opposite sides of the second end cover 203 along a direction perpendicular to the first axis.

[0073] In some embodiments, the first surface 2031 is used to contact the fixing groove 61 to prevent the first end cover 202 from rotating around the first axis. Figure 3 As shown, the inner circumferential surface of the fixing groove 61 is provided with a second surface 611, and the second surface 611 is in contact with the first surface 2031, so that when the second end cover 203 has a tendency to rotate around the first axis, the second surface 611 squeezes the first surface 2031 to prevent the second end cover 203 from rotating around the first axis, while the second connecting member 6 and the second support seat 2 are stationary relative to the working surface 300, thereby preventing the second end cover 203 from rotating around the first axis relative to the second connecting member 6.

[0074] In some embodiments, the first surface 2031 of the second end cover 203 is a plane, the number of the first surfaces 2031 is two, and the two first surfaces 2031 are respectively arranged on opposite sides of the second end cover 203 along a direction perpendicular to the first axis. Correspondingly, the second surface 611 is also a plane, the number of the second surfaces 611 is two, the two second surfaces 611 are respectively arranged on opposite sides of the inner circumference of the fixing groove 61, and the distance between the two second surfaces 611 is equal to the distance between the two first surfaces 2031. Thus, the two second surfaces 611 are respectively in contact with the two first surfaces 2031 to stably clamp the second end cover 203, thereby improving the problem of the second end cover 203 shaking relative to the second connecting member 6.

[0075] It is understandable that the first end cover 202 may be provided with a first surface 2031 instead of a through hole 2021, and the second end cover 203 may be provided with a through hole 2021 instead of a first surface 2031; the first end cover 202 and the second end cover 203 may also be provided with other structures to prevent themselves from rotating around the first axis, or drive themselves to rotate around the first axis, such as grooves, anti-slip grooves, etc., which will not be repeated here.

[0076] The tightening device 100 and the sensor tightening system of the embodiment of the present application drive the two workpieces to rotate relative to each other through the electric wrench 3 and the first connecting member 4, thereby tightening or loosening the two workpieces relative to each other, reducing the disassembly and assembly costs and safety hazards, and simplifying the operation. In addition, the distance between the first support seat 1 and the second support seat 2 can be adjusted, so that workpieces of different lengths can be adapted, thereby reducing the production cost of the workpieces. Along the direction parallel to the first axis, the clamping sleeve 31 can translate relative to the first support column, the clamping portion 62 can translate relative to the second support column, and the connecting column 42 can translate relative to the sleeve 5 to overcome the problem of shortening the distance between the two workpieces when the two workpieces are tightened. The first connecting member 4 is detachably connected to the sleeve 5, and the second connecting member 6 is detachably connected to the second support seat 2, which is convenient for replacing the first connecting member 4 and the second connecting member 6. The first connecting member 4 and the second connecting member 6 can have multiple models to be suitable for workpieces of different models, expanding the scope of application of the tightening device 100.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Under the concept of the present application, the technical features in the above embodiments or different embodiments may also be combined, the steps may be implemented in any order, and there are many other changes in different aspects of the present application as described above, which are not provided in detail for the sake of simplicity. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A tightening device for tightening two workpieces that fit together, characterized in that: The tightening device comprises: A first support seat; a second support seat, spaced apart from the first support seat, the second support seat being used to support one of the workpieces; An electric wrench, arranged on the first supporting seat; A first connecting member, connected to the electric wrench, the first connecting member being used to connect another workpiece; Wherein, the electric wrench can drive the first connecting member to rotate relative to the first supporting seat.

2. The tightening device according to claim 1, characterized in that: The first support seat is provided with a first slot, and one end of the electric wrench is inserted into the first slot.

3. The tightening device according to claim 2, characterized in that: The second support seat is provided with a second clamping groove, wherein the second clamping groove is used for one of the workpieces to pass through and limits the circumferential position of one of the workpieces; Along the rotation axis direction of the first connecting member, the second clamping groove at least partially overlaps with the first clamping groove.

4. The tightening device according to claim 3, characterized in that: The first support seat comprises a first bottom plate and a first support plate connected to each other, the first support plate is perpendicular to the first bottom plate, and the first slot is arranged on the first support plate; The second support seat comprises a second bottom plate and a second support plate connected to each other, the second support plate is perpendicular to the second bottom plate, and the second slot is arranged on the second support plate; Wherein, the first support plate and the second support plate are arranged in parallel.

5. The tightening device according to claim 4, characterized in that: The first bottom plate is provided with a first fixing hole, and the first fixing hole is used to connect with the working surface; and / or The second bottom plate is provided with a second fixing hole, and the second fixing hole is used to connect with the work surface.

6. The tightening device according to claim 3, characterized in that: The tightening device also includes a second connecting member, one end of which is inserted into the second clamping groove, and the other end of the second connecting member is used to connect one of the workpieces.

7. The tightening device according to claim 6, characterized in that: The two ends of the second connecting member are respectively provided with a fixing groove and a clamping portion; The fixing groove is used to connect one of the workpieces; The clamping portion is inserted into the second clamping slot, and the second clamping slot can limit the circumferential position of the clamping portion.

8. The tightening device according to any one of claims 2 to 7, characterized in that: The electric wrench comprises an output shaft and a clamping sleeve; The output shaft is inserted into the clamping sleeve, and the output shaft is connected to the first connecting member and outputs torque; The clamping sleeve is inserted into the first clamping slot, and the first clamping slot limits the circumferential position of the clamping sleeve.

9. The tightening device according to claim 8, characterized in that: A connecting hole and a connecting column are respectively provided at both ends of the first connecting member. The connecting hole is used for detachable connection with one of the workpieces, and the connecting column is connected to the output shaft.

10. A sensor tightening system, characterized in that: include: A sensor, the sensor comprising a cylinder, a first end cover and a second end cover, wherein the first end cover and the second end cover are respectively threadedly connected to two ends of the cylinder; According to the tightening device as described in any one of claims 1 to 9, the second support seat is used to support the second end cover, and the first connecting member is used to connect the first end cover.

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