CN215639891U

CN215639891U - Rotary switch torque detection device

Info

Publication number: CN215639891U
Application number: CN202122013883.8U
Authority: CN
Inventors: 秦华
Original assignee: Daming Electronics Chongqing Co ltd
Current assignee: Daming Electronics Chongqing Co ltd
Priority date: 2021-08-25
Filing date: 2021-08-25
Publication date: 2022-01-25
Anticipated expiration: 2031-08-25

Abstract

The utility model provides a rotary switch torque detection device, and belongs to the technical field of automobile electrical switch measuring equipment. It has solved the problem that current torque detection device measurement accuracy is low. This rotary switch torque detection device, including lifting unit and by its up-and-down motion's of lifting unit drive loading board, install the first motor of inversion setting on the loading board, coaxial coupling has torque measurement appearance in the pivot of first motor, and torque measurement appearance's lower extreme is equipped with and is used for driving rotary switch pivoted and drives the subassembly, and torque measurement appearance's lower extreme still is equipped with the plumb line with the coaxial setting of torque measurement appearance. According to the utility model, the plumb line is arranged below the torque measuring instrument, so that the concentricity of the rotary switch and the torque measuring instrument can be improved, and the torque measuring precision is improved.

Description

Rotary switch torque detection device

Technical Field

The utility model belongs to the technical field of automobile electrical appliance switch measuring equipment, and relates to a rotary switch torque detection device.

Background

The automobile electrical switch is a switch for controlling various control device circuits on an automobile, is an important index for ensuring safe driving of the automobile, and is very necessary for test detection of the automobile electrical switch. Therefore, the chinese patent discloses an automobile electrical switch performance test stand [ with an authorization publication number of CN205228810U ], which comprises a lifting mechanism, a torque detection mechanism, a sample piece rotating platform and a sample piece clamping mechanism, which are mounted on a rack. The bearing plate is driven by a lifting servo motor, so that a torque measuring instrument arranged on the bearing plate moves up and down, a clamp is arranged at the end part of the torque measuring instrument and connected with a rotary switch, and the rotary servo motor drives the torque measuring instrument to drive the rotary switch, so that the torque value of the switch is detected.

In the test bed, although the transverse moving support and the longitudinal moving support are arranged below the sample clamp mechanism to change the position of the workpiece, in the adjusting process, the concentricity of the workpiece and the center of the torque measuring instrument is judged only by subjective evaluation after the worker observes, the concentricity cannot be guaranteed, and the error between the torque measured value and the actual value is large.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a rotary switch torque detection device capable of improving torque measurement precision aiming at the problems in the prior art.

The purpose of the utility model can be realized by the following technical scheme:

rotary switch torque detection device, include lifting unit and by its up-and-down motion's of lifting unit drive loading board, install the first motor that inverts the setting on the loading board, coaxial coupling has torque measurement appearance in the pivot of first motor, torque measurement appearance's lower extreme is equipped with and is used for driving rotary switch pivoted and drives the subassembly, torque measurement appearance's lower extreme still is equipped with the plumb line with the coaxial setting of torque measurement appearance.

The plumb line includes vertical line and the plummet of locating its lower extreme, and the upper end and the torque measurement appearance of vertical line are connected, and vertical line is coaxial with torque measurement appearance's central line, and the plummet is coniform, and its summit is located the extension line of vertical line, and the summit of plummet is located torque measurement appearance's central line promptly. Due to the plumb line, the top point of the plumb hammer is easier to capture relative to the center of the torque measuring instrument, and the top point of the plumb hammer is aligned with the center of the rotary switch during measurement, so that the concentricity of the rotary switch and the torque measuring instrument can be improved, and the torque measuring precision is improved. Meanwhile, the plumb line can also assist in confirming whether the rotary switch is placed horizontally or not and whether an included angle exists between the rotary switch and the torque measuring instrument or not, and the torque measuring precision is further improved.

During detection, the rotary switch is installed on a clamp located below the plumb line, the clamp can move along the X axis and the Y axis in the horizontal direction, the center position of the rotary switch is convenient to adjust, and after the rotary switch is installed in place, the center of the rotary switch is aligned to the top point of the plumb line. Then the bearing plate descends along the Z axis under the action of the lifting assembly, so that the driving assembly acts on the rotary switch. The first motor works to drive the torque measuring instrument to rotate, the rotary switch is driven to rotate under the action of the driving assembly, and the torque value of the rotary switch is measured through the torque measuring instrument.

In the rotary switch torque detection device, a magnetic connecting block is arranged at the lower end of the torque measuring instrument, and the plumb line is connected with the lower end of the torque measuring instrument through the magnetic connecting block. The upper end of the plumb line is connected with the magnetic connecting block, and the magnetic connecting block is adsorbed at the lower end of the torque measuring instrument through magnetism. Because the plumb line is connected with torque measurement appearance's lower extreme through magnetism connecting block, can conveniently adjust the concentricity of plumb line and torque measurement appearance, can dismantle the plumb line after aiming at the center, prevent that the plumb line from causing the influence to measuring.

In some other embodiments, suction cups may be used instead of the magnetic connection blocks.

In the rotary switch torque detection device, the driving assembly comprises a supporting plate which is fixed at the lower end of the torque measuring instrument and extends horizontally, a horizontally extending groove is formed in the supporting plate, a vertically extending shifting rod is arranged in the groove, and a locking structure which is used for fixing the shifting rod which is moved in place at the current position is arranged on the shifting rod.

The length of the groove extends along the horizontal direction, the depth of the groove extends along the vertical direction, the width of the groove is slightly larger than the outer diameter of the shift lever, the shift lever is parallel to the plumb line, and the shift lever can move in the groove, so that the distance between the shift lever and the plumb line is changed. Because the deflector rod can move in the open slot, the deflector rod can be suitable for knob switches with different sizes, and the application range is wide.

Before detection, a knob of the rotary switch is sleeved with a lantern ring, the lantern ring is circumferentially fixed with the knob of the rotary switch, when the knob of the rotary switch rotates, the lantern ring is driven to rotate together, and the lantern ring is provided with a handle which extends horizontally approximately. During detection, the deflector rod pushes the handle to rotate, so that the rotary switch is driven to rotate.

In the above-mentioned rotary switch torque detection device, the locking structure includes a fixed flange provided on the shift lever and a nut screwed on the shift lever, and the support plate is located between the nut and the fixed flange.

The outer diameters of the nut and the fixed flange are larger than the width of the groove, when the position of the shifting rod needs to be adjusted, the nut is loosened, the position between the nut and the fixed flange is increased, and the shifting rod can freely slide in the clamping groove. When the shifting rod moves in place, the nut is screwed down, and the support plate is clamped tightly through the nut and the fixing flange, so that the purpose of fixing the shifting rod is achieved.

In the above-mentioned rotary switch torque detection device, the drive subassembly includes the clamping jaw that articulates at the torque measurement appearance lower extreme, the clamping jaw is a plurality of and sets up along torque measurement appearance's focus symmetry. The clamping jaw is an elastic clamping jaw, and can realize opening and closing actions. When the clamping jaws are opened, the knob of the rotary switch can be put in and then retracted inwards under the action of self elasticity or external force, so that the knob of the rotary switch is clamped.

For example, the two clamping jaws are hinged at the lower end of the torque measuring instrument respectively, the two clamping jaws are symmetrically arranged along a plumb line, an elastic member such as a spring is connected between the two clamping jaws, and the two clamping jaws can be folded by the elastic member after being opened.

In the rotary switch torque detection device, the lifting assembly comprises a rack, a guide groove which is arranged on the rack and extends vertically, a sliding rod which is arranged in the guide groove in a sliding manner, and a power unit which drives the sliding rod to lift up and down, and the bearing plate is fixed on the sliding rod.

The rack is in a shape like a Chinese character 'men', guide grooves are formed in two inner sides of the rack, the sliding rods horizontally extend, one end of each sliding rod is arranged in one guide groove in a sliding mode, the other end of each sliding rod is arranged in the other guide groove in a sliding mode, the sliding rods can ascend and descend under the action of the power units, and therefore the bearing plates can ascend and descend.

In order to read the movement distance of the bearing plate, scales can be arranged on the machine frame.

In the rotary switch torque detection device, the power unit is an air cylinder or a hydraulic cylinder which is inversely fixed at the top of the frame, and a piston rod of the air cylinder or the hydraulic cylinder is fixedly connected with the slide rod. The telescopic of the piston rod of the cylinder or the hydraulic cylinder drives the slide rod to move up and down, thereby driving the bearing plate to move up and down.

In the above rotary switch torque detection device, the power unit is an electric push rod, and the lower end of the electric push rod is fixedly connected with the slide rod.

In the rotary switch torque detection device, the power unit comprises a second motor and a screw rod driven by the second motor, the screw rod is vertically arranged, the bearing plate is provided with a threaded hole, and the screw rod is in threaded fit with the threaded hole.

The second motor during operation drives the lead screw and rotates around self axis, because lead screw and screw hole screw-thread fit, the rotation of lead screw truns into the oscilaltion of loading board.

Compared with the prior art, the rotary switch torque detection device has the following advantages:

the plumb line is arranged below the torque measuring instrument, so that the concentricity of the rotary switch and the torque measuring instrument can be improved, and the torque measuring precision is improved; meanwhile, the plumb line can also assist in confirming whether the rotary switch is placed horizontally and whether an included angle exists between the rotary switch and the torque measuring instrument, so that the torque measuring precision is further improved; the plumb line can be additionally arranged on the existing torque detection device so as to improve the detection precision of the existing torque detection device and be beneficial to saving the cost.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention.

In the figure, 1, a bearing plate; 2. a first motor; 3. a torque measuring instrument; 4. a rotary switch; 5. a plumb line; 6. a magnetic connecting block; 7. a support plate; 8. grooving; 9. a deflector rod; 10. a fixed flange; 11. a nut; 12. a frame; 13. a guide groove; 14. a slide bar; 15. a clamp; 16. a collar; 17. a handle.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

The rotary switch 4 torque detection device shown in fig. 1 comprises a lifting assembly and a bearing plate 1 driven by the lifting assembly to move up and down, wherein a first motor 2 arranged in an inverted manner is mounted on the bearing plate 1, a torque measuring instrument 3 is coaxially connected to the lower end of a rotating shaft of the first motor 2, a driving assembly for driving the rotary switch 4 to rotate is arranged at the lower end of the torque measuring instrument 3, and a plumb line 5 coaxially arranged with the torque measuring instrument 3 is further arranged at the lower end of the torque measuring instrument 3.

Wherein, plumb line 5 includes vertical line and the plummet of locating its lower extreme, and the upper end and the torque measurement appearance 3 of vertical line are connected, and vertical line is coaxial with torque measurement appearance 3's central line, and the plummet is coniform, and its summit is located the extension line of vertical line, and the summit of plummet is located torque measurement appearance 3's central line promptly. Due to the plumb line 5, the vertex of the plumb is easier to capture relative to the center of the torque measuring instrument 3, and the vertex of the plumb is aligned with the center of the rotary switch 4 during measurement, so that the concentricity of the rotary switch 4 and the torque measuring instrument 3 can be improved, and the torque measuring precision is improved. Meanwhile, the plumb line 5 can also assist in confirming whether the rotary switch 4 is placed horizontally and whether an included angle exists between the rotary switch and the torque measuring instrument 3, and the torque measuring precision is further improved.

During detection, the rotary switch 4 is arranged on the clamp 15 positioned below the plumb line 5, the clamp 15 can move along the X axis and the Y axis in the horizontal direction, the central position of the rotary switch 4 is convenient to adjust, and after the rotary switch 4 is arranged in place, the center of the rotary switch 4 is aligned to the top point of the plumb line 5. Then the bearing plate 1 descends along the Z axis under the action of the lifting assembly, so that the driving assembly acts on the rotary switch 4. The first motor 2 works to drive the torque measuring instrument 3 to rotate, the rotary switch 4 is driven to rotate under the action of the driving component, and the torque value of the rotary switch 4 is measured through the torque measuring instrument 3.

In this embodiment, as shown in fig. 1, the lifting assembly includes a frame 12, a guide groove 13 disposed on the frame 12 and extending vertically, a sliding rod 14 slidably disposed in the guide groove 13, and a power unit for driving the sliding rod 14 to lift up and down, and the bearing plate 1 is fixed on the sliding rod 14. The guide groove 13 mainly stabilizes the slide bar 14 and improves the stability of the up-and-down movement of the slide bar 14. In some other embodiments, the frame 12 and the guide groove 13 may not be provided, for example, two power units may be provided below the slide bar 14, and respectively act on two ends of the slide bar 14.

In this embodiment, the frame 12 is in a shape of a "door", the two inner sides of the frame are provided with guide grooves 13, the sliding rod 14 extends horizontally, one end of the sliding rod is slidably disposed in one of the guide grooves 13, the other end of the sliding rod is slidably disposed in the other guide groove 13, and the sliding rod 14 can be lifted up and down under the action of the power unit, so that the lifting of the bearing plate 1 is realized.

In order to read the distance of movement of the carrier plate 1, a scale can be provided on the machine frame 12.

In this embodiment, the power unit is an air cylinder or a hydraulic cylinder which is fixed on the top of the frame 12 in an inverted manner, and a piston rod of the air cylinder or the hydraulic cylinder is fixedly connected with the sliding rod 14. The extension and contraction of the piston rod of the air cylinder or the hydraulic cylinder drives the slide rod 14 to move up and down, thereby driving the bearing plate 1 to move up and down.

In some other embodiments, the power unit is an electric push rod, and the lower end of the electric push rod is fixedly connected with the sliding rod 14. In other embodiments, the power unit comprises a second motor and a screw rod driven by the second motor, the screw rod is arranged vertically, a threaded hole is formed in the bearing plate 1, and the screw rod is in threaded fit with the threaded hole. The second motor during operation drives the lead screw and rotates around self axis, because lead screw and screw hole screw-thread fit, the rotation of lead screw truns into the oscilaltion of loading board 1 into.

In this embodiment, in order to adjust the concentricity of the plumb line 5 and the torque measuring instrument 3 conveniently, a magnetic connecting block 6 is provided at the lower end of the torque measuring instrument 3, and the plumb line 5 is connected to the lower end of the torque measuring instrument 3 through the magnetic connecting block 6. The upper end of the plumb line 5 is connected with the magnetic connecting block 6, and the magnetic connecting block 6 is adsorbed at the lower end of the torque measuring instrument 3 through magnetism. Because plumb line 5 is connected with torque measurement appearance 3's lower extreme through magnetism connecting block 6, can dismantle plumb line 5 behind the alignment center, prevent that plumb line 5 from causing the influence to measuring.

In some other embodiments, suction cups may be used instead of the magnetic connection blocks 6.

In this embodiment, as shown in fig. 1, the driving assembly includes a supporting plate 7 fixed at the lower end of the torque measuring instrument 3 and extending horizontally, a slot 8 extending horizontally is formed on the supporting plate 7, a shifting lever 9 extending vertically is arranged in the slot 8, and a locking structure for fixing the shifting lever 9 moving in place at the current position is arranged on the shifting lever 9.

The length of the slot 8 extends along the horizontal direction, the depth of the slot 8 extends along the vertical direction, the width of the slot 8 is slightly larger than the outer diameter of the shift lever 9, the shift lever 9 is parallel to the plumb line 5, and the shift lever 9 can move in the slot 8, so that the distance between the shift lever 9 and the plumb line 5 is changed. The shifting rod 9 can move in the slot 8, so that the device is suitable for knob switches with different sizes and has wide application range.

Before detection, a knob of the rotary switch 4 is sleeved with a lantern ring 16, the lantern ring 16 is fixed with the knob of the rotary switch 4 in the circumferential direction, when the knob of the rotary switch 4 rotates, the lantern ring 16 is driven to rotate together, and the lantern ring 16 is provided with a handle 17 which extends approximately horizontally. During detection, the shift lever 9 pushes the handle 17 to rotate, so that the rotary switch 4 is driven to rotate.

As shown in fig. 1, the locking structure includes a fixing flange 10 disposed on the shift lever 9 and a nut 11 screwed on the shift lever 9, and the support plate 7 is located between the nut 11 and the fixing flange 10.

The outer diameters of the nut 11 and the fixing flange 10 are larger than the width of the slot 8, when the position of the shift lever 9 needs to be adjusted, the nut 11 is loosened, so that the position between the nut 11 and the fixing flange 10 is increased until the shift lever 9 can freely slide in the clamping slot. After the shifting lever 9 is moved to the right position, the nut 11 is screwed, and the supporting plate 7 is clamped through the nut 11 and the fixing flange 10, so that the purpose of fixing the shifting lever 9 is achieved.

In some other embodiments, the driving assembly comprises a plurality of clamping jaws hinged at the lower end of the torquemeter 3, and the clamping jaws are symmetrically arranged along the center of gravity of the torquemeter 3. The clamping jaw is an elastic clamping jaw, and can realize opening and closing actions. When the clamping jaws are opened, the knob of the rotary switch 4 can be put in and then retracted inwards under the action of self elasticity or external force, so that the knob of the rotary switch 4 is clamped. For example, two clamping jaws are hinged to the lower end of the torque measuring instrument 3, the two clamping jaws are symmetrically arranged along a plumb line 5, and an elastic member such as a spring is connected between the two clamping jaws and can be folded by the elastic member after the clamping jaws are opened.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. The utility model provides a rotary switch torque detection device, includes lifting unit and by lifting unit drive its up-and-down motion's loading board (1), install first motor (2) of inversion setting on loading board (1), coaxial connection has torque measuring instrument (3) in the pivot of first motor (2), its characterized in that, the lower extreme of torque measuring instrument (3) is equipped with and is used for driving rotary switch (4) pivoted and drives the subassembly, the lower extreme of torque measuring instrument (3) still is equipped with plumb line (5) with torque measuring instrument (3) coaxial setting.

2. The rotary switch torque detection device according to claim 1, wherein a magnetic connection block (6) is provided at a lower end of the torque measuring instrument (3), and the plumb line (5) is connected to the lower end of the torque measuring instrument (3) through the magnetic connection block (6).

3. The rotary switch torque detection device according to claim 1 or 2, wherein the driving assembly comprises a horizontally extending support plate (7) fixed at the lower end of the torque measurement instrument (3), the support plate (7) is provided with a horizontally extending slot (8), a vertically extending shift lever (9) is arranged in the slot (8), and a locking structure for fixing the shift lever (9) which is moved in place at the current position is arranged on the shift lever (9).

4. A rotary switch torque detection device according to claim 3, wherein the locking structure comprises a fixing flange (10) arranged on the shift lever (9) and a nut (11) screwed on the shift lever (9), and the support plate (7) is located between the nut (11) and the fixing flange (10).

5. The rotary switch torque detection device according to claim 1 or 2, wherein the lifting assembly comprises a frame (12), a guide groove (13) which is arranged on the frame (12) and extends vertically, a slide rod (14) which is slidably arranged in the guide groove (13), and a power unit which drives the slide rod (14) to lift up and down, and the bearing plate (1) is fixed on the slide rod (14).

6. The rotary switch torque detection device according to claim 5, wherein the power unit comprises a second motor and a screw rod driven by the second motor, the screw rod is vertically arranged, the bearing plate (1) is provided with a threaded hole, and the screw rod is in threaded fit with the threaded hole.