CN219084280U - Thrust force detection device - Google Patents

Abstract

The utility model discloses a thrust detection device, which comprises: the device comprises a frame, a propping mechanism, a rotating mechanism, a positioning tool and a clamping mechanism, wherein the propping mechanism is movably arranged on the frame and is used for propping up a product; the rotating mechanism is movably arranged on the propping mechanism; the positioning tool is connected with the rotating mechanism and is suitable for being driven to rotate by the rotating mechanism, and the positioning tool is configured for sleeving a product shaft; the clamping mechanism is connected with the rotating mechanism and is suitable for clamping and positioning the positioning tool. According to the thrust detection device provided by the embodiment of the utility model, the gap is adjusted in a rotating part mode, the risks of stress and deformation of parts are eliminated, and the positioning tool is positioned through the clamping mechanism after the gap is adjusted, so that a product meeting the gap requirement is maintained in a stable state, the subsequent process is convenient, and the production efficiency is improved.

Description

Thrust force detection device

Technical Field

The utility model relates to the technical field of detection equipment, in particular to a thrust detection device.

Background

With the improvement of the performance of automobiles, the requirements on the manufacturing process and control of automobiles are also increasing, and not only the steering is desired to be light at low speed, but also good steering stability is required at high speed. The traditional hydraulic power steering system and the mechanical steering system are difficult to simultaneously meet the two requirements, and the contradiction is well solved by adopting the electric power steering system adopting the modern control technology and the electronic technology. Meanwhile, the electric power steering system improves the safety performance of the automobile, consumes less energy and is beneficial to environmental protection. The electric power steering represents the development trend of steering systems and has good application prospect.

In the steering gear assembly process, the gap is adjusted by vertically supporting the screw rod or the rack in the related art, so that the screw rod and the rack generate stress or deform.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems in the related art to some extent. Therefore, the utility model aims to provide a thrust detection device, wherein the gap is adjusted by a rotating part, so that the risks of stress and deformation of the part are eliminated, and in addition, the positioning tool is positioned by a clamping mechanism after the gap is adjusted, so that a product meeting the gap requirement is maintained in a stable state, the subsequent process is convenient, and the production efficiency is improved.

The thrust detection device comprises a frame, a jacking mechanism, a rotating mechanism, a positioning tool and a clamping mechanism; the jacking mechanism is movably arranged on the frame and is used for jacking a product; the rotating mechanism is movably arranged on the propping mechanism; the positioning tool is connected with the rotating mechanism and is suitable for being driven to rotate by the rotating mechanism, and the positioning tool is configured for sleeving a product shaft; the clamping mechanism is connected with the rotating mechanism and is suitable for clamping and positioning the positioning tool.

According to the thrust detection device provided by the embodiment of the utility model, the jacking mechanism can jack and position a product, the positioning tool is driven by the rotating mechanism and sleeved on the product shaft, and the gap is adjusted by means of jacking and rotating the component, so that the risk of stress and deformation of the component is eliminated. In addition, after the gap is adjusted, the positioning tool is positioned through the clamping mechanism, so that a product meeting the gap requirement is maintained in a stable state, subsequent procedures are facilitated, and the production efficiency is improved.

In addition, the thrust force detection device according to the above embodiment of the present utility model may further have the following additional technical features:

optionally, the positioning tool is provided with a clamping part, the clamping part is connected with the positioning tool, the clamping part is provided with a clamping groove, and the clamping groove extends along the circumferential direction of the positioning tool.

Optionally, the clamping mechanism includes: a first clamping plate; the first clamping plate and the second clamping plate are arranged oppositely and can move between the mutually close and mutually far positions, and the second clamping plate and the first clamping plate are suitable for being embedded into the clamping groove and clamping the clamping part; and the first driving piece is connected with the first clamping plate and the second clamping plate so as to drive the first clamping plate and the second clamping plate.

Optionally, the first clamping plate and the second clamping plate are both provided with semicircular grooves, and the semicircular grooves on the first clamping plate and the second clamping plate are arranged oppositely.

Optionally, the clamping groove is configured as a groove with a V-shaped cross section, and the parts of the first clamping plate and the second clamping plate matched with the clamping groove are matched with the shape of the clamping groove.

Optionally, the clamping mechanism further comprises: the bottom plate is connected with the rotating mechanism; the guide rail is arranged on the bottom plate, and the first clamping plate and the second clamping plate are matched with the guide rail so as to be suitable for moving along the guide rail.

Optionally, a corrugated coupling is connected between the positioning tool and the rotating mechanism.

Optionally, the positioning tool includes: a sleeve configured for connection to a product shaft; the connecting rod is connected between the rotating mechanism and the shaft sleeve; the pressure sensor is arranged between the connecting rod and the shaft sleeve; wherein, be equipped with on the connecting rod with fixture looks adaptation clamping part.

Optionally, the rotation mechanism includes: the mounting seat is connected with the jacking mechanism and is suitable for being driven by the jacking mechanism; the second driving piece is connected with the mounting seat; the floating mechanism is arranged on the mounting seat and is respectively connected with the second driving piece and the positioning tool, so that the distance between the second driving piece and the positioning tool is variable.

Optionally, the floating mechanism includes: the sleeve is connected with the mounting seat; the first connecting part is connected with the sleeve and is used for connecting the second driving piece; the second connecting part is connected with the sleeve and is used for connecting the positioning tool; the elastic part is arranged in the sleeve and is elastically supported between the first connecting part and the second connecting part; wherein at least one of the first connection portion and the second connection portion is movable in an axial direction of the sleeve.

Optionally, a proximity switch is disposed on the rack, and the proximity switch corresponds to the tightening mechanism, so as to detect the position of the tightening mechanism.

Optionally, a proximity switch is disposed on the tightening mechanism, and the proximity switch corresponds to the rotating mechanism, so as to detect a position of the rotating mechanism.

Optionally, the proximity switch includes a first switch, a second switch and a third switch, where the second switch and the third switch are separately disposed on two opposite sides of the first switch, so as to be used for detecting limit positions on two opposite sides of the first switch.

Drawings

Fig. 1 is a schematic view of a thrust force detection apparatus according to an embodiment of the present utility model.

Fig. 2 is another schematic view of a thrust detecting device according to an embodiment of the present utility model.

Fig. 3 is a schematic side view of a thrust force detection device of an embodiment of the present utility model.

Fig. 4 is a schematic view of a frame of a thrust detection apparatus according to an embodiment of the present utility model.

Fig. 5 is a schematic view of another direction of the frame of the thrust detection device according to the embodiment of the present utility model.

Fig. 6 is a schematic view of a tightening mechanism of the thrust force detection device according to the embodiment of the present utility model.

Fig. 7 is a schematic view of another direction of the tightening mechanism of the thrust detecting device according to the embodiment of the present utility model.

Fig. 8 is a schematic diagram of a rotating mechanism and a positioning tool of a thrust detection device according to an embodiment of the utility model.

Fig. 9 is a schematic diagram of another direction of the rotating mechanism and the positioning tool of the thrust detection device according to the embodiment of the present utility model.

Fig. 10 is a schematic diagram of a rotating mechanism and a positioning tool of a thrust detection device according to an embodiment of the utility model.

Fig. 11 is a cross-sectional view of a rotating mechanism and a positioning tool of a thrust detection device according to an embodiment of the present utility model.

Fig. 12 is a schematic view of a floating mechanism of the thrust detecting device of the embodiment of the present utility model.

Fig. 13 is a schematic view of a clamping mechanism of the thrust force detection apparatus according to the embodiment of the present utility model.

Fig. 14 is a schematic view of another direction of the clamping mechanism of the thrust detection device according to the embodiment of the present utility model.

Fig. 15 is a schematic view of another direction of the clamping mechanism of the thrust detection device according to the embodiment of the present utility model.

Reference numerals:

a thrust force detection device 100;

a frame 10; a proximity switch 11; a first switch 111; a second switch 112; a third switch 113; a first slide rail 12; stop 13; a buffer 14; a floating joint 15; a gas-liquid pressure cylinder 16;

a tightening mechanism 20; a sleeve 21; a plate portion 22; a positioning block 23; a second slide rail 24; a connecting rod 25; a third driving member 26; pushing the connection block 27;

a rotation mechanism 30; a mounting base 31; a second driving member 32; a floating mechanism 33; a sleeve 331; a first connecting portion 332; a second connection part 333; an elastic portion 334; a speed reducer 34; a mounting hole 35;

positioning a tool 40; a clamping portion 41; a clamping slot 411; a bellows coupling 42; a sleeve 43; a link 44; a pressure sensor 45;

a clamping mechanism 50; a first clamping plate 51; a semicircular groove 511; a second clamping plate 52; a first driving member 53; a bottom plate 54; a guide rail 55; a fixed shaft 56; a first connection plate 57; and a second connecting plate 58.

Detailed Description

In the related art, the detection and adjustment device of the steering gear adjusts the gap by supporting the screw rod or the rack up and down, which causes the following problems: the screw or rack may generate stress; the screw rod or the rack may be deformed; the control precision of the screw rod or the rack clearance is not high, and the clearance value is unstable. In addition, the steering gear detecting device in the related art cannot detect the reverse force immediately after the gap is adjusted.

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

Referring to fig. 1, 2, 3 and 8, the thrust detecting device 100 according to the embodiment of the present utility model is suitable for assembly and detection of a steering gear, and in particular, a gap between a housing of the steering gear and a screw rod or a gap between the housing of the steering gear and a rack may be adjusted to ensure good performance of the steering gear.

The thrust detection device 100 includes a frame 10, the frame 10 providing support for other components of the thrust detection device 100.

The pushing force detecting device 100 may further include a pushing mechanism 20, where the pushing mechanism 20 is movably disposed on the frame 10 and is used for pushing a product, in other words, the pushing mechanism 20 moves on the frame 10, and after moving to a predetermined position, the pushing mechanism can push the product, and the pushing product can fix and position the product, so as to conveniently adjust a gap between the housing and the screw rod or a gap between the housing and the rack.

The thrust force detecting device 100 may further include a rotation mechanism 30, where the rotation mechanism 30 is movably disposed on the tightening mechanism 20, and the rotation mechanism 30 may rotate.

The thrust detecting device 100 may further comprise a positioning tool 40, wherein the positioning tool 40 is connected to the rotating mechanism 30 and adapted to be driven to rotate by the rotating mechanism 30, and the positioning tool 40 is configured to be sleeved on a product shaft. After the jacking mechanism 20 jacks up the product, the positioning tool 40 can rotate under the drive of the rotating mechanism 30 and is sleeved on the product shaft.

The product shaft refers to a screw rod, a ball screw rod or other components of the steering gear.

The thrust force detection device 100 may further include a clamping mechanism 50, where the clamping mechanism 50 is connected to the rotating mechanism 30 and adapted to clamp the positioning tool 40, and to position the positioning tool 40 by clamping. The workpiece is moved and rotationally abutted to the product through the rotating mechanism 30, when the predetermined torque is reached, the gap adjustment meets the requirement, and the positioning tool 40 can be clamped through the clamping mechanism at the moment so as to position the positioning tool 40, so that the product meeting the requirement of the gap is ensured to be maintained in a stable state, and the next process is convenient to carry out.

According to the thrust force detection device 100 of the embodiment of the utility model, the propping mechanism 20 can move on the frame 10, the product can be propped up after moving to a preset position, the positioning tool 40 can be driven by the rotating mechanism 30, the rotating mechanism 30 can move on the propping mechanism 20, the positioning tool 40 is sleeved on a product shaft through rotation and movement, the workpiece is propped up into the product through rotation, and after rotating to a preset torque, the gap adjustment of the product meets the requirement, and at the moment, the clamping mechanism 50 clamps the rotating mechanism 30. The gap is adjusted by rotating the screw rod or the rack, so that the risk of stress and deformation of the screw rod or the rack is eliminated, and the stability of the gap value can be ensured. In addition, after the gap is adjusted, the positioning tool 40 is positioned through the clamping mechanism 50, so that a product meeting the gap requirement is maintained in a stable state, subsequent procedures are facilitated, and the production efficiency is improved.

In some embodiments of the present utility model, a pressure sensor 45 may be further disposed on the positioning tool 40, where the pressure sensor 45 may detect a reverse force of the product. In the foregoing embodiment, after the clamping mechanism 50 clamps the positioning tool 40, the pressure sensor 45 detects the reverse force of the product, that is, after the gap adjustment of the product meets the requirement, the reverse force of the product can be synchronously detected, so as to ensure that the reverse force of the steering gear meets the requirement, simplify the assembly and detection procedures of the steering gear, and improve the production efficiency.

The reverse force is one of reasons for overcoming the friction force of a steering gear system, such as excessively small reverse force, excessively hollow feeling when a driver turns, lack of damping feeling, excessively large reverse force, blocking and unsmooth steering, and qualified reverse force is ensured by detecting the reverse force of a product so as to ensure the comfort of automobile driving.

The clamping mechanism 50 is connected with the rotating mechanism 30, the clamping mechanism 50 clamps the positioning tool 40 and positions the positioning tool 40, and the clamping mechanism 50 can directly clamp the rotating mechanism 30 or the clamping mechanism 50 and the positioning tool 40 are provided with mutually matched clamping structures, so that the clamping mechanism 50 can be stably clamped with the rotating mechanism 30.

Referring to fig. 1, 8 and 13, in some embodiments of the present utility model, a clamping portion 41 may be provided on the positioning tool 40, the clamping portion 41 is connected to the positioning tool 40, and a clamping slot 411 is provided on the clamping portion 41, where the clamping slot 411 extends along a circumferential direction of the positioning tool 40. Through being equipped with clamping groove 411 on location frock 40, fixture 50 can imbed in clamping groove 411, and clamping groove 411 fixes a position fixture 50, realizes that fixture 50 and location frock 40 are connected steadily to improve fixture 50's clamping force, avoid the clamping process inefficacy or drop. And the clamping groove 411 extends along the circumference of the positioning tool 40, so that the clamping mechanism 50 can encircle the positioning tool 40 to ensure that the clamping mechanism 50 provides uniform axial force, further ensure the connection stability of the clamping mechanism 50 and the positioning tool 40, and the positioning tool 40 can better bear the push-pull rotating force in the moving and rotating processes of the positioning tool 40.

Referring to fig. 13-15, in some embodiments of the utility model, the clamping mechanism 50 may include a first clamping plate 51 and a second clamping plate 52, the first clamping plate 51 and the second clamping plate 52 being disposed opposite and movable between a position of being moved toward and away from each other. In other words, the first clamping plate 51 and the second clamping plate 52 are engaged with each other, and the first clamping plate 51 and the second clamping plate 52 can be moved toward each other or moved away from each other. The first clamping plate 51 and the second clamping plate 52 are close to each other to clamp the positioning tool 40, and the first clamping plate 51 and the second clamping plate 52 are embedded into the clamping groove 411 after clamping. The first clamping plate 51 and the second clamping plate 52 are far away from each other to release the clamping of the positioning tool 40, so as to facilitate the forward and backward movement of the positioning tool 40. By arranging the first clamping plate 51 and the second clamping plate 52, the clamping and the positioning of the positioning tool 40 are convenient due to the cooperation of the first clamping plate and the second clamping plate.

To drive the first clamping plate 51 and the second clamping plate 52 to move, the clamping mechanism 50 may further comprise a first driving member 53, the first driving member 53 being connected to the first clamping plate 51 and the second clamping plate 52 to drive the first clamping plate 51 and the second clamping plate 52. The clamping mechanism 50 is convenient to clamp and unclamp the positioning tool 40 through the driving of the first driving piece 53, when the positioning tool 40 moves and rotates to a preset position, the first driving piece 53 drives the first clamping plate 51 and the second clamping plate 52 to be close to each other so as to clamp the positioning tool 40, and when the clamping mechanism needs to unclamp, the first driving piece 53 drives the first clamping plate 51 and the second clamping plate 52 to move towards positions far away from each other.

The clamping mechanism 50 may further include a connecting plate, the connecting plate includes a first connecting plate 57 and a second connecting plate 58, the first connecting plate 57 is clamped on the first clamping plate 51, the second connecting plate 58 is clamped on the second clamping plate 52, the first connecting plate 57 and the second connecting plate 58 are fixedly connected with the first driving member 53, the first connecting plate 57 and the second connecting plate 58 are respectively located at two sides of the first driving member 53, and the first driving member 53 drives the first connecting plate 57 and the second connecting plate 58 to move and drives the first clamping plate 51 and the second clamping plate 52 to move. By arranging the connecting plates, the driving piece can stably drive the first clamping plate 51 and the second clamping plate 52 to move so as to clamp and position the positioning tool 40.

Further, the first clamping plate 51 and the second clamping plate 52 may be provided with a semicircular groove 511, the semicircular grooves 511 on the first clamping plate 51 and the second clamping plate 52 are arranged opposite to each other, the semicircular grooves 511 of the first clamping plate 51 and the second clamping plate 52 may surround an annular groove after being mutually close, and the annular groove corresponds to the clamping groove 411 of the positioning tool 40. Through all setting up semicircle groove 511 on first splint 51 and second splint 52, carry out the centre gripping to location frock 40 when being close to each other, simple structure can promote the stability of clamping structure, and is difficult to drop after the centre gripping.

As shown in fig. 11, the clamping slot 411 may be configured as a slot having a V-shaped cross section, specifically, in the front-rear extension direction of the positioning tool 40, the cross section of the clamping slot 411 is a V-shaped slot, and the portions of the first clamping plate 51 and the second clamping plate 52 that are matched with the clamping slot 411 are adapted to the shape of the clamping slot 411. The first clamping plate 51 and the second clamping plate 52 are embedded in the V-shaped groove, and the clamping groove 411 can fix the first clamping plate 51 and the second clamping plate 52 in the front-back direction, so that after the clamping mechanism 50 clamps the positioning tool 40, the positioning tool 40 is prevented from shifting back and forth, and the positioning tool 40 is kept in a stable state. And the first clamping plate 51 and the second clamping plate 52 are respectively semicircular grooves 511, and after the first clamping plate 51 and the second clamping plate 52 are mutually closed, the annular grooves can be surrounded, and the V-shaped grooves are clamped, so that the clamping mechanism 50 can firmly clamp the positioning tool 40. The positioning tool 40 is clamped in a stable state by the clamping mechanism 50, so that the reverse force is conveniently detected by the positioning tool 40, and the accuracy of the detection result can be improved.

In some embodiments of the utility model, referring to fig. 13, the clamping mechanism 50 may further include a base plate 54 and a guide rail 55, the base plate 54 is connected to the rotating mechanism 30, the clamping mechanism 50 is connected to the rotating mechanism 30 through the base plate 54, the guide rail 55 is provided on the base plate 54, and the first clamping plate 51 and the second clamping plate 52 cooperate with the guide rail 55 to be adapted to move along the guide rail 55. By providing the guide rail 55, the movement of the first clamping plate 51 and the second clamping plate 52 is guided, so that the first clamping plate 51 and the second clamping plate 52 can move along the guide rail 55, and the movement stability of the first clamping plate 51 and the second clamping plate 52 is improved, so that the clamping mechanism 50 is ensured to be clamped stably, and the working stability of the thrust detection device 100 is improved.

Wherein, fixture 50 may include a fixed axle 56, and fixed axle 56 may be connected with bottom plate 54, and rotary mechanism 30 may be provided with mounting hole 35, and fixed axle 56 cooperates with mounting hole 35. The number of the fixing shafts 56 may be plural, and the mounting holes 35 correspond to the fixing shafts 56, so that the clamping mechanism 50 is ensured to be stably fixed on the rotating mechanism 30, the bottom plate 54 may be square, and the fixing shafts 56 may be disposed at four corners of the bottom plate 54, so that the clamping mechanism 50 may better clamp the positioning tool 40, stability of the clamped structure is improved, and accuracy of a detection result of the reverse force is improved.

In some embodiments of the present utility model, a bellows coupling 42 may be provided between the positioning tool 40 and the rotating mechanism 30 to compensate for axial misalignment of the product and the thrust detecting device 100, as shown in fig. 9. Specifically, after the product is tightly pressed by the pressing mechanism 20, the product is positioned, and at this time, the rotating mechanism 30 rotationally drives the positioning tool 40 to be sleeved on the product shaft. If the product manufacturing precision or the production size deviation in the installation process, the positioning tool 40 and the product shaft are not in the same straight line, so that the positioning tool 40 cannot be sleeved on the product shaft, the adjustment needs to be repeated, the assembly efficiency is influenced, by arranging the corrugated coupling 42, the corrugated coupling 42 can effectively sleeve the positioning tool 40 on the product shaft by compensating the axial deviation of the product and the thrust detection device 100, and the production efficiency of the product is improved.

Referring to fig. 10 and 11, in some embodiments of the present utility model, the positioning fixture 40 may include a sleeve 43, the sleeve 43 configured to connect to a product shaft, and the rotation mechanism 30 rotationally drives the positioning fixture 40 to be sleeved on the product shaft.

The positioning fixture 40 may further include a connecting rod 44, where the connecting rod 44 is connected between the rotating mechanism 30 and the shaft sleeve 43.

In order to detect the reverse force of the steering gear, the positioning fixture 40 may further include a pressure sensor 45, and the pressure sensor 45 may be disposed between the connecting rod 44 and the sleeve 43. Wherein the connecting rod 44 may be provided with a clamping portion 41 adapted to the clamping mechanism 50.

Specifically, the rotating mechanism 30 rotates to enable the shaft sleeve 43 to be sleeved on the product shaft, after the rotating mechanism rotates to the required torque, the clamping mechanism 50 clamps the clamping part 41 on the connecting rod 44 to position the tool, at this time, the rotating mechanism 30 is matched with the clamping mechanism 50 to enable the tool to bear axial force, the pressure sensor 45 is connected between the connecting rod 44 and the shaft sleeve 43, the pushing mechanism 20 pushes the rotating mechanism 30, and the pressure sensor 45 can detect the reverse force of the product. The reverse force is detected by the pressure sensor 45 to ensure that the reverse force of the steering gear meets the requirements to ensure the comfort of driving the car. In addition, after the workpiece is rotated into the product, the reverse force is synchronously detected, so that the assembly and detection procedures of the steering gear are simplified, and the production efficiency is improved.

In some embodiments of the utility model, referring to fig. 9, the rotation mechanism 30 may include a mount 31, the mount 31 being coupled to the tightening mechanism 20 and adapted to be driven by the tightening mechanism 20. The jacking mechanism 20 drives the rotating mechanism 30 to move through the mounting seat 31. The rotation mechanism 30 may further include a second driving member 32, where the second driving member 32 is connected to the mounting seat 31. The second driving member 32 can drive the rotating mechanism 30 to rotate, and the rotating mechanism 30 rotates so as to drive the positioning tool 40 to be sleeved on the product shaft, so that the gap adjustment between the workpiece and the product is conveniently realized.

Referring to fig. 8, the rotating mechanism 30 may further include a floating mechanism 33, where the floating mechanism 33 is disposed on the mounting seat 31, the floating mechanism 33 is respectively connected with the second driving member 32 and the positioning tool 40, the floating mechanism 33 can adjust an axial distance before the positioning tool 40 does not enter the product, after the positioning tool 40 contacts with the product, under the action of the floating mechanism 33, the positioning tool 40 pops up and is sleeved on the product shaft, and the floating mechanism 33 can be convenient for the positioning tool 40 to be effectively sleeved on the product shaft.

With reference to fig. 2, 6 and 8, further, the tightening mechanism 20 may be provided with a connecting rod 25, the connecting rod 25 is connected with a mounting seat 31, the tightening mechanism 20 may be provided with a third driving member 26, the third driving member 26 drives the connecting rod 25 to move, the connecting rod 25 drives the mounting seat 31 to move, and the tightening mechanism 20 drives the rotating mechanism 30 to move back and forth. And the positioning tool 40 is connected with the rotating mechanism 30, and the rotating mechanism 30 is driven to move by the jacking mechanism 20, so that the positioning tool 40 is sleeved on a product shaft, and the gap adjustment of a workpiece and a product is conveniently realized.

In some embodiments of the utility model, referring to fig. 8 and 12, the float mechanism 33 may include a sleeve 331, the sleeve 331 being coupled to the mount 31. The float mechanism 33 may further comprise a first connection 332 and a second connection 333, the first connection 332 being connected to the sleeve 331 and being adapted to connect to the second driver 32. The second connection part 333 is connected to the sleeve 331 and is used for connecting the positioning tool 40. Specifically, one end of the sleeve 331 is sleeved on the first connecting portion 332, and the second end of the sleeve 331 is sleeved on the connecting seat, so that the floating mechanism 33 is ensured to be stably connected with the mounting seat 31.

The floating mechanism 33 may further include an elastic portion 334, where the elastic portion 334 is disposed in the sleeve 331 and is elastically supported between the first connecting portion 332 and the second connecting portion 333. At least one of the first and second connection portions 332 and 333 is movable in the axial direction of the sleeve 331 so that the axial distance of the positioning fixture 40 before entering the product can be adjusted. The elastic portion 334 may be a spring or other elastic member.

In combination with the foregoing embodiment, a corrugated coupling 40 may be disposed between the positioning tool 40 and the rotating mechanism 30, and the corrugated coupling 42 may be engaged with the floating mechanism 33, when the tightening mechanism 20 reaches a predetermined distance, and after positioning the product, the rotating mechanism 30 rotates to drive the positioning tool 40 to rotate, at this time, the corrugated coupling 40 compensates for the axial deviation between the product and the device, so that the positioning tool 40 can be sleeved on the product shaft, in addition, the floating mechanism 33 may adjust the axial distance before the tool does not enter the product, when the positioning tool 40 is gradually close to the product shaft, the floating mechanism 33 may have an elastic portion 334 disposed therein, and the rotating mechanism 30 rotates while compressing the spring, so that the positioning tool 40 is abutted to the product shaft, and when the positioning tool 40 is abutted to the product shaft, the spring force of the spring is released, and the completion tool is completely sleeved on the product shaft to ensure that the positioning tool 40 can be effectively sleeved on the product shaft, so as to improve the efficiency of gap adjustment, and further improve the production efficiency of the product.

Referring to fig. 1 and 4, in some embodiments of the present utility model, a proximity switch 11 may be disposed on the rack 10, where the proximity switch 11 corresponds to the tightening mechanism 20, so as to detect the position of the tightening mechanism 20, so that positioning is more accurate. The tightening mechanism 20 moves on the frame 10, and the proximity switch 11 can detect the position of the tightening mechanism 20. Specifically, the proximity switch 11 may detect whether the tightening mechanism 20 reaches a specified position, and after reaching the specified position, the tightening mechanism 20 tightens the product to complete positioning and fixing of the product.

Referring to fig. 1 and 7, in some embodiments of the present utility model, a proximity switch 11 may be provided on the tightening mechanism 20, where the proximity switch 11 corresponds to the rotation mechanism 30 to detect the position of the rotation mechanism 30. The rotating mechanism 30 is movable on the propping mechanism 20, and the proximity switch 11 can detect the position of the rotating mechanism 30, so that the positioning is more accurate. Specifically, the proximity switch 11 may detect whether the rotating mechanism 30 reaches a specified position, and after reaching the specified position, the positioning tool 40 is connected to the rotating mechanism 30, and the positioning tool 40 is in shaft-butt joint with the product.

In some embodiments of the present utility model, the proximity switch 11 may be provided on both the frame 10 and the tightening mechanism 20 to detect whether the tightening mechanism 20 and the rotating mechanism 30 reach the designated positions, and the proximity switch 11 controls the stroke to improve the production efficiency.

In conjunction with fig. 5 and 7, further, the proximity switch 11 may include a first switch 111, a second switch 112, and a third switch 113, that is, the proximity switch 11 of the rack 10 may include the first switch 111, the second switch 112, and the third switch 113, the proximity switch 11 of the tightening mechanism 20 may be provided on the tightening mechanism 20, the proximity switch 11 of the tightening mechanism 20 may include the first switch 111, the second switch 112, and the third switch 113, or the rack 10 and the tightening mechanism 20 may each include the first switch 111, the second switch 112, and the third switch 113. The second switch 112 and the third switch 113 are respectively disposed on opposite sides of the first switch 111, so as to detect limit positions of the opposite sides of the first switch 111. The second switch 112 and the third switch 113 may perform limit protection when the tightening mechanism 20 or the rotating mechanism 30 moves, the first switch 111 may be an origin, used for starting after the thrust detection device 100 is powered off, the tightening mechanism 20 or the rotating mechanism 30 may return to the origin, and the second switch 112 and the third switch 113 are used for limiting movement of the tightening mechanism 20 or the rotating mechanism 30.

According to the thrust detection device 100 of the embodiment of the utility model, the gap between the screw rod of the steering gear and the shell, or the gap between the rack and the shell can be adjusted, the thrust detection device 100 can be provided with the gas-liquid pressurizing steel 16, the gas-liquid pressurizing cylinder 16 transmits thrust to the jacking mechanism 20 for jacking the shell, the rotating mechanism 30 moves to drive the positioning tool 40 to butt against a product shaft, the positioning tool 40 is sleeved on the product shaft, the rotating mechanism 30 is driven to rotate by the second driving piece 32, the rotating mechanism 30 drives the positioning tool 40 to rotate the screw rod or the rack to required torque, then the clamping mechanism 50 clamps the positioning tool 40, the rotating mechanism 30 and the clamping mechanism 50 can enable the tool to bear axial force, and finally, the reverse force of the product is detected by pushing the screw rod or the rack, so that the reverse force is qualified is ensured, and the driving comfort of an automobile is ensured.

Referring to fig. 4, in some embodiments of the present utility model, the tightening mechanism 20 is movably disposed on the frame 10, and a first sliding rail 12 may be disposed on the frame 10, where the first sliding rail 12 is connected to and supports the tightening mechanism 20, and the tightening mechanism 20 moves on the first sliding rail 12, so as to ensure that the tightening mechanism 20 moves stably.

Further, the stand 10 may further include a stop 13, where the stop 13 may be precisely positioned after the tightening mechanism 20 moves.

The frame 10 may further include a buffer 14, where the buffer 14 can buffer the impact force of the tightening mechanism 20 after tightening the product, so as to avoid damage to the tightening mechanism 20 and improve the reliability of the thrust detection device 100.

In some embodiments of the present utility model, the pushing connection block 27 may be provided on the pushing mechanism 20, and the floating joint 15 and the gas-liquid pressurizing cylinder 16 may be provided on the frame 10, where the floating joint 15 cooperates with the pushing connection block 27.

Specifically, the gas-liquid booster cylinder 16 is connected with the pushing connection block 27 through the floating joint 15, the pushing force is transmitted to the propping mechanism 20 to provide the propping force, the buffer 14 can buffer the impact force of the propping mechanism 20 when propping a product, and the stop 13 can accurately position the propping mechanism 20 after moving. The proximity switch 11 can detect whether the tightening mechanism 20 reaches a specified position.

Referring to fig. 7, in some embodiments of the present utility model, the tightening mechanism 20 may further include a plate 22 and a positioning block 23, and the positioning block 23 may fine-tune the plate 22.

The jacking mechanism 20 may also include a sleeve 21 through which the product may be positioned and jacked.

The jacking mechanism 20 may also include a second slide rail 24, a third drive member 26, and a push connection block 27. Specifically, the sleeve 21 can position and tightly press the product, the positioning block 23 fine-tunes the position of the plate 22, the second slide rail 24 is connected with and supports the rotating mechanism 30, the connecting rod 25 is connected with the mounting seat 31, the connecting rod 25 drives the rotating mechanism 30 to move to a designated position under the driving of the third driving piece 26, and the device further comprises a proximity switch 11, wherein the proximity switch 11 can detect whether the rotating mechanism 30 reaches the designated position.

In some embodiments of the utility model, in conjunction with fig. 8, the rotation mechanism 30 may also include a speed reducer 34 to slow down the rotation mechanism 30.

Specifically, after the product is tightly propped and positioned by the propping mechanism 20, the rotating mechanism 30 is driven to move to a designated position by the third driving piece 26, the speed reducer 34 is driven to rotate by the second driving piece 32, the positioning tool 40 is connected with the rotating mechanism 30, the positioning tool 40 is sleeved on a product shaft through rotation and then rotates to required torque, then the clamping mechanism clamps the positioning groove on the positioning tool 40, the propping mechanism 20 pushes the rotating mechanism 30, and the pressure sensor 45 is used for detecting the product reverse force.

In combination with the above embodiment, the rotating mechanism 30 compresses the elastic part 334 while rotating to make the positioning tool 40 sleeve-joint on the product shaft, and after the positioning tool 40 is butted on the product, the elastic part 334 releases the elastic force to make the positioning tool 40 pop out and attach to the product plane. The rotating mechanism 30 is matched with the clamping mechanism to enable the positioning tool 40 to bear axial force, and the pressure sensor 45 detects the reverse force of the product.

According to the detection thrust mechanism of the embodiment of the utility model, the jacking mechanism 20 can slide on the slide rail of the frame 10, the sleeve 21 of the jacking mechanism 20 is jacked on a product, the jacking mechanism 20 drives the rotating mechanism 30 to move to a designated position through the connecting rod 25, the rotating mechanism 30 provides power through the second driving piece 32 and rotationally jacks a workpiece into the product in cooperation with the movement of the speed reducer 34, the required torque is achieved, the clamping mechanism clamps the positioning tool 40, and the reverse force is detected through the pressure sensor 45. According to the thrust detection device 100, the gap is adjusted by rotating the lead screw or the rack, so that the risk of stress and deformation of the lead screw or the rack is eliminated, the gap value is stable, the reverse force can be detected immediately after the gap of a product is adjusted, and the production efficiency is improved.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (11)

1. A thrust force detection device (100), the thrust force detection device (100) being adapted for detection of a steering gear, characterized by comprising:

a frame (10);

the jacking mechanism (20) is movably arranged on the frame (10) and is used for jacking a product;

a rotation mechanism (30), wherein the rotation mechanism (30) is movably arranged on the propping mechanism (20);

the positioning tool (40) is connected with the rotating mechanism (30) and is suitable for being driven to rotate by the rotating mechanism (30), and the positioning tool (40) is configured for sleeving a product shaft;

and the clamping mechanism (50) is connected with the rotating mechanism (30) and is suitable for clamping and positioning the positioning tool (40).

2. The thrust force detection device (100) according to claim 1, wherein a clamping portion (41) is provided on the positioning tool (40), the clamping portion (41) is connected with the positioning tool (40), and a clamping slot (411) is provided on the clamping portion (41), and the clamping slot (411) extends along the circumferential direction of the positioning tool (40).

3. The thrust force detection apparatus (100) of claim 2, wherein the clamping mechanism (50) includes:

a first clamping plate (51);

-a second clamping plate (52), said first clamping plate (51) and said second clamping plate (52) being arranged opposite and movable between a mutually closed and a mutually distanced position, said second clamping plate (52) and said first clamping plate (51) being adapted to be inserted into said clamping slot (411) and to clamp said clamping portion (41);

-a first driving member (53), said first driving member (53) being connected to said first clamping plate (51) and said second clamping plate (52) for driving said first clamping plate (51) and said second clamping plate (52).

4. The thrust force detection apparatus (100) according to claim 3, wherein the first clamping plate (51) and the second clamping plate (52) are each provided with a semicircular groove (511), and the semicircular grooves (511) on the first clamping plate (51) and the second clamping plate (52) are arranged opposite to each other;

and/or the clamping groove (411) is configured into a groove with a V-shaped cross section, and the parts of the first clamping plate (51) and the second clamping plate (52) matched with the clamping groove (411) are matched with the shape of the clamping groove (411).

5. A thrust force detection apparatus (100) according to claim 3, wherein the clamping mechanism (50) further comprises:

a base plate (54), the base plate (54) being connected to the rotation mechanism (30);

-a guide rail (55), said guide rail (55) being provided on said base plate (54), and said first clamping plate (51) and said second clamping plate (52) being co-operating with said guide rail (55) so as to be adapted to move along said guide rail (55).

6. The thrust detecting device (100) according to any one of claims 1-5, wherein a bellows coupling (42) is connected between said positioning fixture (40) and said rotating mechanism (30).

7. The thrust detection apparatus (100) of any one of claims 1-5, wherein the positioning fixture (40) comprises:

-a sleeve (43), the sleeve (43) being configured for connecting a product shaft;

-a connecting rod (44), said connecting rod (44) being connected between said rotation mechanism (30) and said bushing (43);

a pressure sensor (45), wherein the pressure sensor (45) is arranged between the connecting rod (44) and the shaft sleeve (43);

wherein the connecting rod (44) is provided with a clamping part (41) matched with the clamping mechanism (50).

8. The thrust force detection apparatus (100) of any one of claims 1-5, wherein the rotation mechanism (30) includes:

the mounting seat (31) is connected with the jacking mechanism (20) and is suitable for being driven by the jacking mechanism (20);

the second driving piece (32), the said second driving piece (32) couples to said mount pad (31);

the floating mechanism (33) is arranged on the mounting seat (31), and the floating mechanism (33) is respectively connected with the second driving piece (32) and the positioning tool (40), so that the distance between the second driving piece (32) and the positioning tool (40) is variable.

9. The thrust force detection apparatus (100) of claim 8, wherein the floating mechanism (33) includes:

a sleeve (331), the sleeve (331) being connected to the mounting base (31);

-a first connection portion (332), said first connection portion (332) being connected to said sleeve (331) and being adapted to connect to said second driving member (32);

the second connecting part (333), the said second connecting part (333) links to each other with said sleeve (331), and is used for connecting the said locating frock (40);

an elastic portion (334), wherein the elastic portion (334) is provided in the sleeve (331) and is elastically supported between the first connecting portion (332) and the second connecting portion (333); wherein at least one of the first connecting portion (332) and the second connecting portion (333) is movable in the axial direction of the sleeve (331).

10. The thrust force detection device (100) according to claim 1, wherein a proximity switch (11) is provided on the frame (10), the proximity switch (11) corresponding to the tightening mechanism (20) to detect the position of the tightening mechanism (20);

and/or, a proximity switch (11) is arranged on the jacking mechanism (20), and the proximity switch (11) corresponds to the rotating mechanism (30) so as to detect the position of the rotating mechanism (30).

11. The thrust force detection apparatus (100) of claim 10, wherein the proximity switch (11) includes a first switch (111), a second switch (112) and a third switch (113), the second switch (112) and the third switch (113) being provided on opposite sides of the first switch (111) respectively for detecting extreme positions on opposite sides of the first switch (111).

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