A clamping device for a high-pressure resistant and balanced pressure check valve for automobiles

Abstract

The present invention provides a high-pressure resistant and balanced pressure check valve clamping device for automobiles, which relates to the field of check valve production clamping technology, including: a support base, a valve body; further including: a support portion, which is arranged on the support base; an external clamping portion, which is arranged on the support portion to fix the valve body; a placement portion, which is connected to the external clamping portion through a connecting portion and cooperates with the external clamping portion to safely clamp the valve body; an internal clamping portion, which is arranged on the support base to fix and position the valve body from the inside. The present invention is provided with a first driving member, which ultimately drives the clamping members on the first rack and the second rack to clamp the valve body; applying pressure to the valve body in various directions can ensure stable clamping and ensure that the valve body is in the center of the placement portion to avoid inaccurate positioning during processing; at the same time, an internal clamping portion is provided, and the internal clamping portion is driven to work by the downward movement of the placement portion, so that the valve body can be double-clamped inside and outside, providing clamping stability.

Description

Technical Field

[0001] The invention relates to the technical field of production clamping of one-way valves, and in particular to a clamping device for a high-pressure resistant and balanced pressure one-way valve for automobiles. Background Art

[0002] A check valve is a valve used to ensure that fluid can only flow in one direction. They are widely used in hydraulic systems, pneumatic systems, water treatment systems and other fields to prevent damage or failure caused by reverse flow. The production of check valves involves multiple links such as material selection, design, manufacturing process and quality control. When producing high-pressure resistant check valves for automobiles, high-pressure resistant materials are required to produce the valve body.

[0003] During valve body production, the valve body needs to be clamped for process flows such as pressure checks, and existing clamping devices require manual placement of the valve body on a clamping seat when clamping the valve body to be processed. During operation, the valve body is not accurately positioned, and the valve body is not located at the center of the clamping seat. As a result, during operations such as pressurizing the valve body, there is a risk of lateral movement of the valve body, creating a safety hazard. At the same time, the valve body may not be clamped tightly enough, causing the valve body to fall off and production and assembly failure. Summary of the invention

[0004] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0005] An embodiment of the present invention provides a high-pressure resistant balanced pressure check valve clamping device for an automobile, comprising:

[0006] Support base, valve body; also includes:

[0007] A support portion, disposed on the support base;

[0008] An external clamping part is arranged on the supporting part to fix the valve body; the external clamping part includes: an annular stabilizing member connected to the supporting part; an internal gear is arranged on the annular stabilizing member; a driving gear is meshed with the internal gear; a first driving member is arranged on the annular stabilizing member to drive the driving gear to rotate; a first rack is meshed with the driving gear and connected to the annular stabilizing member; a second rack is provided with a plurality of groups, and the plurality of groups of the second racks are circumferentially distributed on the annular stabilizing member; a driven gear is provided with a plurality of groups, and the plurality of groups of the driven gears are circumferentially distributed on the annular stabilizing member and meshed with the second rack and the internal gear, thereby driving the second rack to move; a clamping member is arranged on the end of the first rack and the second rack facing each other, thereby externally clamping the valve body from multiple directions, thereby ensuring that the valve body is clamped;

[0009] A placement portion, connected to the outer clamping portion via a connection portion, for placing the valve body and cooperating with the outer clamping portion to securely clamp the valve body;

[0010] An inner clamping portion is disposed on the support base and cooperates with the placement portion so as to fix and position the valve body from inside the valve body when the outer clamping portion clamps the valve body;

[0011] The inner clamping portion comprises:

[0012] An inflatable airbag is arranged on the support base, and one end of the inflatable airbag is connected with the placement portion to inflate the inner clamping portion to achieve inner clamping of the valve body.

[0013] Furthermore, the outer clamping portion further includes:

[0014] A first clamping ring groove is provided on the annular stabilizing member;

[0015] A first snap ring block, one end of which rotates in the first snap ring groove and the other end of which is connected to the internal gear;

[0016] The rack limiting plate is arranged on the first rack and the second rack to limit the movement tracks of the first rack and the second rack.

[0017] Furthermore, the annular stabilizer comprises:

[0018] A first fixed ring, disposed on the support portion;

[0019] A supporting top plate connected to the top of the first fixing ring;

[0020] A first through hole is provided on the supporting top plate and matches with the connecting portion;

[0021] A second fixing ring is sleeved inside the first fixing ring and connected to the supporting top plate;

[0022] A plurality of first limiting grooves are provided, wherein the plurality of first limiting grooves are circumferentially opened on the first fixed circular ring and are slidably connected with the first rack, the second rack and the rack limiting plate;

[0023] The second limiting grooves are provided in a plurality of groups, wherein the plurality of first limiting grooves are circumferentially opened on the second fixed ring and are slidably connected with the first rack, the second rack and the rack limiting plate;

[0024] A plurality of fixed connecting rods are provided, one end of each of the fixed connecting rods is connected to the supporting top plate, and the other end is connected to the driven gear.

[0025] Furthermore, the clamping member comprises:

[0026] A fixed block connected to the inward ends of the first rack and the second rack;

[0027] A spring telescopic rod, one end of which is connected to the fixed block;

[0028] The clamping arc plate is connected to the other end of the spring telescopic rod.

[0029] Furthermore, the first driving member includes:

[0030] A first motor, which is disposed on the supporting top plate and has an output end connected to the driving gear;

[0031] The second motor is arranged on the supporting top plate, and the output end is connected to one of the driven gears, and is used synchronously with the first motor to cope with emergencies and increase service life.

[0032] Furthermore, the connecting portion includes:

[0033] A threaded through hole is formed on the fixed connecting rod and the driven gear;

[0034] A threaded rod, inserted into the threaded through hole;

[0035] A limiting column has one end connected to the bottom end of the threaded rod and the other end connected to the placement portion.

[0036] Further, the placement unit includes:

[0037] A supporting disc connected to the limiting column;

[0038] A placing truncated table is arranged on the supporting disc, and the valve body is placed on the top end;

[0039] The positioning cylinder is arranged at the center of the placing truncated cone, so as to initially position the valve body.

[0040] Furthermore, the inner clamping portion further comprises:

[0041] A clamping and positioning member is arranged on the placing circumferential table;

[0042] A venting groove is arranged at the center of the placing truncated table, is communicated with the positioning cylinder, and has a bottom end communicated with the inflatable airbag.

[0043] Furthermore, the clamping positioning member includes:

[0044] Second through holes are provided in a plurality of groups, and the plurality of groups of second through holes are circumferentially opened on the side wall of the positioning cylinder;

[0045] The positioning elastic airbag is connected to the second through hole, so as to be communicated with the inflatable airbag through the positioning cylinder and the ventilation groove.

[0046] Furthermore, the support parts are provided with two groups, and the two groups of support parts are symmetrically arranged on the support base; the support parts include:

[0047] A supporting side column, the bottom end of which is connected to the supporting base;

[0048] The supporting side plate is connected to the top end of the supporting side column and is connected to the first fixing ring.

[0049] The above solution of the present invention includes at least the following beneficial effects:

[0050] The present invention is provided with a first driving member to drive the driving gear to rotate, and the driving gear drives the first rack to move forward and backward along the annular stabilizing member, and at the same time drives the internal gear to rotate, and the internal gear drives a plurality of groups of the driven gears to rotate, thereby driving a plurality of groups of the second racks to move forward and backward, so that the first rack and the second rack move toward the middle of the annular stabilizing member, and finally drives the clamping members on the first rack and the second rack to clamp the valve body; applying pressure to the valve body in various directions can ensure stable clamping and ensure that the valve body is in the center of the placement part, thereby avoiding inaccurate positioning during processing; at the same time, an internal clamping part is provided, and the internal clamping part is driven to work through the downward movement of the placement part, so that the valve body can be double clamped inside and outside, providing clamping stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 It is a three-dimensional diagram of the clamping device of the high-pressure resistant and balanced pressure check valve for automobiles of the present invention;

[0052] Figure 2 It is a first partial stereoscopic view of the high-pressure-resistant and balanced-pressure one-way valve clamping device for automobiles of the present invention;

[0053] Figure 3 It is a second partial perspective view of the automobile high-pressure resistant balanced pressure check valve clamping device of the present invention;

[0054] Figure 4 It is a partially exploded perspective view of the automobile high-pressure resistant balanced pressure check valve clamping device of the present invention;

[0055] Figure 5 It is a partial front cross-sectional view of the automobile high-pressure resistant balanced pressure check valve clamping device of the present invention;

[0056] Figure 6 yes Figure 5 A in the enlarged view;

[0057] Figure 7It is a third partial perspective view of the automobile high-pressure resistant balanced pressure check valve clamping device of the present invention;

[0058] Figure 8 yes Figure 7 The enlarged view of point C in the figure;

[0059] Fig. 9 is a fourth partial perspective view of the automobile high-pressure resistant balanced pressure check valve clamping device of the present invention;

[0060] Fig.10 yes Fig. 9 The enlarged view of point B in the figure;

[0061] Fig.11 It is a partially cutaway perspective view of a clamping device for a high-pressure-resistant and balanced-pressure one-way valve for an automobile of the present invention;

[0062] Fig.12 yes Fig.11 Enlarged view of point D in .

[0063] Description of reference numerals:

[0064] 1. Support base; 101. Support side column; 102. Support side plate; 103. Support top plate; 104. First through hole; 201. First fixed ring; 202. Internal gear; 203. First motor; 204. Driving gear; 205. First rack; 206. Second fixed ring; 207. Second limiting groove; 208. First limiting groove; 209. First clamping ring block; 210. First clamping ring groove; 211. Second motor; 212. Rack limiting plate ; 301, fixed block; 302, pressure sensor; 303, spring telescopic rod; 304, clamping arc plate; 401, driven gear; 402, fixed connecting rod; 403, second rack; 404, threaded rod; 405, threaded through hole; 406, limiting column; 501, supporting disc; 502, placing round table; 503, positioning cylinder; 504, positioning elastic airbag; 505, inflatable airbag; 506, ventilation groove; 507, second through hole; 6, valve body. DETAILED DESCRIPTION

[0065] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to enable the scope of the present invention to be fully communicated to those skilled in the art.

[0066] like Figures 1 to 12As shown, an embodiment of the present invention provides a high-pressure resistant and balanced pressure one-way valve clamping device for automobiles, comprising: a support base 1, a valve body 6; further comprising: a support portion, which is arranged on the support base 1; an external clamping portion, which is arranged on the support portion to fix the valve body 6; the external clamping portion comprises: an annular stabilizer, which is connected to the support portion; an internal gear 202, which is arranged on the annular stabilizer; a driving gear 204, which is meshed and connected to the internal gear 202; a first driving member, which is arranged on the annular stabilizer to drive the driving gear 204 to rotate; a first rack 205, which is meshed and connected to the driving gear 204 and connected to the annular stabilizer; a second rack 403, which is provided in a plurality of groups, and the plurality of groups of the second racks 403 are circumferentially distributed on the annular stabilizer; a driven gear 401, which is provided in a plurality of groups, and the plurality of groups of the driven gears 401 are circumferentially distributed on the annular stabilizer. On the annular stabilizing member, and meshingly connected with the second rack 403 and the inner gear 202, so as to drive the second rack 403 to move; the clamping member is arranged on the end facing each other of the first rack 205 and the second rack 403, so as to clamp the valve body 6 from multiple directions, so as to ensure that the valve body 6 is clamped; the placing portion is connected to the outer clamping portion via the connecting portion, and is used to place the valve body 6, and cooperates with the outer clamping portion to safely clamp the valve body 6; the inner clamping portion is arranged on the supporting base 1, and cooperates with the placing portion, so that when the outer clamping portion clamps the valve body 6, the valve body 6 is fixedly positioned from the inside of the valve body 6 at the same time; the inner clamping portion includes: an inflatable airbag 505, which is arranged on the supporting base 1, and one end of which is connected in cooperation with the placing portion, so as to inflate the inner clamping portion to achieve internal clamping of the valve body 6.

[0067] In the embodiment of the present invention, a first driving member is provided to drive the driving gear 204 to rotate, and the driving gear 204 drives the first rack 205 to move forward and backward along the annular stabilizer, and at the same time drives the internal gear 202 to rotate, and the internal gear 202 drives a plurality of groups of the driven gears 401 to rotate, thereby driving a plurality of groups of the second racks 403 to move forward and backward, so that the first rack 205 and the second rack 403 move toward the middle of the annular stabilizer, and finally drive the clamping members on the first rack 205 and the second rack 403 to clamp the valve body 6; through various directions Applying pressure to the valve body 6 can not only ensure stable clamping, but also ensure that the valve body 6 is in the center of the placement part, thereby avoiding inaccurate positioning during processing; at the same time, by providing a placement part and a connecting part, when the valve body 6 is placed on the placement part, the valve body 6 is above the outer clamping part, thereby avoiding mechanical failure when the valve body 6 is placed manually, causing the clamping part to suddenly clamp and injure the worker, thereby avoiding certain safety hazards; when the outer clamping part is working, the placement part will be driven to move downward through the connecting part, thereby driving the valve body 6 to move downward, so that the outer clamping part can clamp the valve body 6.

[0068] like Figures 1 to 12 As shown, the outer clamping part also includes: a first snap ring groove 210, which is opened on the annular stabilizer; a first snap ring block 209, one end of which rotates in the first snap ring groove 210 and the other end is connected to the internal gear 202; a rack limiting plate 212, which is arranged on the first rack 205 and the second rack 403 to limit the movement trajectory of the first rack 205 and the second rack 403.

[0069] In the embodiment of the present invention, by cooperating with the first snap ring groove 210 and the first snap ring block 209, the internal gear 202 can rotate stably, thereby driving a plurality of driven gears 401 to rotate; a rack limit plate 212 is provided, connected to the first rack 205 and the second rack 403, and slidably connected to the groove on the annular stabilizer, thereby preventing the first rack 205 and the second rack 403 from shifting during movement, causing equipment failure.

[0070] like Figures 1 to 12 As shown, the annular stabilizer includes: a first fixed ring 201, which is arranged on the support portion; a support top plate 103, which is connected to the top of the first fixed ring 201; a first through hole 104, which is opened on the support top plate 103 and matches with the connecting portion; a second fixed ring 206, which is sleeved in the first fixed ring 201 and connected to the support top plate 103; a first limiting groove 208, which is provided in a plurality of groups, and a plurality of groups of the first limiting grooves 208 are circumferentially opened on the first fixed ring 201, and It is slidably connected with the first rack 205, the second rack 403 and the rack limiting plate 212; the second limiting groove 207 is provided in several groups, and several groups of the first limiting groove 208 are circumferentially opened on the second fixed ring 206, and are slidably connected with the first rack 205, the second rack 403 and the rack limiting plate 212; the fixed connecting rod 402 is provided in several groups, and one end of several groups of the fixed connecting rod 402 is connected to the supporting top plate 103, and the other end is connected to the driven gear 401.

[0071] In the embodiment of the present invention, the first fixed ring 201, the support top plate 103 and the second fixed ring are fixedly connected to the support part to ensure the overall stability of the outer clamping part, and a plurality of first limiting grooves 208 and second limiting grooves 207 are provided, and a first limiting groove 208 and a second limiting groove 207 are correspondingly provided to limit the movement position of the corresponding first rack 205 or second rack 403, so as to ensure that when the first rack 205 and the second rack 403 move horizontally, they will not be out of engagement with the driving gear 204 and the driven gear 401; at the same time, a fixed connecting rod 402 is provided on the driven gear 401 which is not connected to the driving device, and the fixed connecting rod 402 is rotatably connected to the support top plate 103, so as to ensure the position of the driven gear 401 without hindering the rotation of the driven gear 401.

[0072] like Figures 1 to 12 As shown, the clamping member includes: a fixed block 301 connected to the inward end of the first rack 205 and the second rack 403; a spring telescopic rod 303, one end of which is connected to the fixed block 301; and a clamping arc plate 304 connected to the other end of the spring telescopic rod 303.

[0073] In the embodiment of the present invention, when the first rack 205 and the second rack 403 move inwards for clamping, the fixed block 301 is driven to move inwards, and the spring telescopic rod 303 is driven to move inwards, and finally the clamping arc plate 304 is moved inwards to clamp the valve body 6 externally;

[0074] Among them, the clamping parts are provided with several groups, corresponding to all the first racks 205 and the second racks 403. A pressure sensor 302 is provided between the fixed block 301 and the rack on one of the clamping parts. When the clamping arc plate 304 clamps the valve body 6, the spring telescopic rod 303 will be squeezed to shrink the spring telescopic rod 303, thereby squeezing the fixed block 301, and finally a certain pressure value is generated on the pressure sensor 302. Through the setting of the control system, when the pressure value detected by the pressure sensor 302 exceeds the specified pressure threshold, a signal is transmitted through the control system to turn off the first motor 203 and the second motor 211 in the first driving part, so that the first rack 205 and the second rack 403 maintain the current clamping state, thereby avoiding excessive clamping force to damage the valve body 6; and ensuring a certain clamping force to avoid excessive loose clamping and affecting production operations.

[0075] like Figures 1 to 12 As shown, the first driving member includes: a first motor 203, which is arranged on the supporting top plate 103, and the output end of which is connected to the driving gear 204; a second motor 211, which is arranged on the supporting top plate 103, and the output end of which is connected to one of the driven gears 401, and is used synchronously with the first motor 203 to cope with emergencies and improve service life.

[0076] In the embodiment of the present invention, by providing the first motor 203 and the second motor 211, when clamping the valve body 6, by simultaneously starting the first motor 203 and the second motor 211, the driving gear 204 is driven to rotate, and the driving gear 204 drives the first rack 205 to move forward and backward along the first limiting groove 208 and the second limiting groove 207 on the first fixed ring 201 and the second fixed ring 206, and at the same time drives the inner gear 202 to rotate, and the inner gear 202 drives a plurality of groups of the driven gears 401 to rotate, thereby driving a plurality of groups of the second racks 403 to move forward and backward along the first limiting groove 208 and the second limiting groove 207 on the first fixed ring 201 and the second fixed ring 206, so that the first rack 205 and the second rack 403 move toward the position of the middle center of the second fixed ring 206, and finally drive the clamping arc plate 304 to clamp the valve body 6 through the fixed block 301 and the spring telescopic rod 303.

[0077] Among them, the first motor 203 and the second motor 211 are both provided with a locking function, that is, when they stop rotating, the output end of the motor will not be driven to rotate under the action of external force. Through the locking function, when clamping the valve body 6, the motor stops rotating and can still maintain the clamping state; at the same time, two motors are provided to run at the same time, so as to avoid the situation where one motor fails and cannot be locked, and the equipment can still maintain the clamping state.

[0078] like Figures 1 to 12 As shown, the connecting portion includes: a threaded through hole 405, which is opened on the fixed connecting rod 402 and the driven gear 401; a threaded rod 404, which is inserted into the threaded through hole 405; a limiting column 406, one end of which is connected to the bottom end of the threaded rod 404, and the other end is connected to the placement portion.

[0079] In the embodiment of the present invention, the threaded through hole 405 is provided at the center of the fixed connection and the center of the driven gear 401, so that the threaded rod 404 is inserted into the threaded through hole 405; since the other end of the threaded rod 404 is fixedly connected to the limiting column 406, thereby ensuring that the threaded rod 404 cannot rotate, when the internal gear 202 rotates to drive the driven gear 401 and the fixed connecting rod 402 to rotate, since the threaded rod 404 is threadedly connected to the driven gear 401 and the fixed connecting rod 402, the threaded rod 404 is driven to move up and down relative to the driven gear 401 and the fixed connecting rod 402, thereby driving the limiting column 406 to move up and down, and finally driving the placement portion to move up and down, thereby ensuring that the placement portion cooperates with the external clamping portion.

[0080] There are at least three groups of threaded rods 404 and limiting columns 406 connected to the three groups of driven gears 401 and connected to the placement portion at the same time, so as to ensure the stability of the placement portion.

[0081] like Figures 1 to 12 As shown, the placement portion includes: a supporting disc 501, connected to the limiting column 406; a placing table 502, arranged on the supporting disc 501, and the top end is used to place the valve body 6; a positioning cylinder 503, arranged at the center of the placing table 502, so as to initially position the valve body 6.

[0082] In the embodiment of the present invention, the support disc 501 is under the action of at least three groups of limit columns 406, so that the support disc 501 will not rotate or shake, thereby ensuring the stability of the support disc 501; at the same time, the support disc 501 moves up and down under the action of the limit columns 406 and the threaded rod 404, thereby driving the placement table 502 to move up and down; in the initial state, the top end of the placement table 502 is at the upper end of the support top plate 103. At this time, when the valve body 6 is placed, since the top end of the placement table 502 is at the upper end of the support top plate 103, when the valve body 6 is manually placed on the top of the placement table 502, the human will not be within the clamping range of the external clamping. Therefore, in the event of a machine failure, when the clamping arc plate 304 moves to the middle for clamping, it will only clamp the placement table 502, and will not clamp the staff, thereby reducing the operation risk.

[0083] At the same time, a positioning cylinder 503 is provided. The positioning cylinder 503 is set to a thinner shape so that it can be penetrated by any valve body 6 model that can be processed, and the internal hole of the valve body 6 is set in the positioning cylinder 503. Even if the bottom of the valve body 6 is uneven or the equipment vibrates, the inner wall of the valve body 6 can be leaned against the positioning cylinder 503 without sliding off the top of the truncated table 502.

[0084] like Figures 1 to 12 As shown, the inner clamping portion also includes: a clamping positioning member, which is arranged on the placing truncated table 502; a ventilation groove 506, which is opened at the center of the placing truncated table 502, connected to the positioning cylinder 503, and the bottom end is connected to the inflatable airbag 505.

[0085] In the embodiment of the present invention, an inflatable airbag 505 is provided on the support base 1, and the top end is fitted with the bottom end of the support disc 501. When the support disc 501 moves downward, the inflatable airbag 505 will be squeezed, thereby reducing the space of the inflatable airbag 505, and the gas moves upward and passes through the ventilation groove 506, thereby inflating the clamping positioning piece, so that the clamping positioning piece clamps the valve body 6 from the inside to the outside.

[0086] Among them, the inflatable airbag 505 is connected to an external air pump, so that it can be inflated even without the squeezing of the supporting disc 501, so that the clamping positioning member is inflated, so that the clamping positioning member clamps the valve body 6 from the inside to the outside; when the outer surface of the valve body 6 needs to be processed, only the valve body 6 is clamped from the inside, so that the outer surface of the valve body 6 is not blocked by the external clamping part and does not affect the movement of the external clamping.

[0087] like Figures 1 to 12 As shown, the clamping positioning member includes: second through holes 507, which are provided in a plurality of groups, and the plurality of groups of second through holes 507 are circumferentially opened on the side wall of the positioning cylinder 503; a positioning elastic airbag 504, which is connected to the second through holes 507, and thus communicates with the inflatable airbag 505 through the positioning cylinder 503 and the ventilation groove 506.

[0088] In the embodiment of the present invention, the downward movement of the support disc 501 will squeeze the inflatable airbag 505, and the gas moves upward through the ventilation groove 506, and enters the positioning elastic airbag 504 through the second through hole 507, so that the positioning elastic airbag 504 is inflated and expanded; thereby clamping the inner wall of the valve; at the same time, four groups of second through holes 507 are provided corresponding to four groups of positioning elastic airbags 504, so that the positioning elastic airbag 504 expands in four directions to clamp the inner wall of the valve, because the gas entering the positioning elastic airbag 504 is the same, and the expansion amount of the positioning elastic airbag 504 in each direction is the same, so that the positioning cylinder 503 is located at the center position of the truncated table 502, and at the same time cooperates with the clamping arc plate 304 on the outer clamping part to clamp the valve body 6 inside and outside, thereby ensuring the stability of the valve body 6.

[0089] like Figures 1 to 12 As shown, the support part is provided with two groups, and the two groups of support parts are symmetrically arranged on the support base 1; the support part includes: a support side column 101, the bottom end of which is connected to the support base 1; a support side plate 102, which is connected to the top end of the support side column 101 and connected to the first fixed ring 201.

[0090] In the embodiment of the present invention, two groups of supporting side columns 101 and supporting side plates 102 are provided to be connected to both ends of the first fixing ring 201 , so as to ensure the stability of the first fixing ring 201 .

[0091] Working principle: First, when placing the valve body 6 on the placing stage 502, the valve body 6 is sleeved on the positioning cylinder 503, so that even if the bottom of the valve body 6 is uneven or the equipment vibrates, the inner wall of the valve body 6 can be against the positioning cylinder 503, and it will not slide from the top of the placing stage 502; because the top of the placing stage 502 is at the upper end of the supporting top plate 103, when the valve body 6 is manually placed on the top of the placing stage 502, the human hand will not be within the clamping range of the external clamp, so that in the event of a machine failure, when the clamping arc plate 304 moves to the middle for clamping, it will only clamp the placing stage 502, and will not clamp the staff, thereby reducing the operating risk.

[0092] When the valve body 6 is clamped, the first motor 203 is started to drive the driving gear 204 to rotate, and the driving gear 204 drives the first rack 205 to move forward and backward along the first limiting groove 208 and the second limiting groove 207 on the first fixed ring 201 and the second fixed ring 206, and at the same time drives the inner gear 202 to rotate, and the inner gear 202 drives a plurality of groups of the driven gears 401 to rotate, thereby driving a plurality of groups of the second racks 403 to move forward and backward along the first limiting groove 208 and the second limiting groove 207 on the first fixed ring 201 and the second fixed ring 206, so that the first rack 205 and the second rack 403 move toward the middle center of the second fixed ring 206 at the same time, and finally pass through the inward end of the first rack 205 and the second rack 403. The fixing block 301 is driven to move inward, and the fixing block 301 drives the clamping arc plate 304 to move inward through the spring telescopic rod 303 to clamp the valve body 6, while the driven gear 401 rotates; the threaded rod 404 is threadedly connected to the driven gear 401 and the fixed connecting rod 402, thereby driving the threaded rod 404 to move up and down relative to the driven gear 401 and the fixed connecting rod 402, thereby driving the limiting column 406 to move up and down, and the limiting column 406 drives the supporting disc 501 to move downward, thereby driving the placing round table 502 to move downward, and finally driving the valve body 6 to move downward, and finally realizing that during the process of the clamping arc plate 304 moving inward, the valve body 6 moves downward and enters the clamping range of the clamping arc plate 304, so that the clamping arc plate 304 is just clamped to the outer surface of the valve body 6.

[0093] When the support disc 501 moves downward, it will also squeeze the inflatable airbag 505, and the gas will move upward through the ventilation groove 506, and enter the positioning elastic airbag 504 through the second through hole 507, so that the positioning elastic airbag 504 is inflated; thereby clamping the inner wall of the valve, thereby achieving double clamping of the valve body 6 inside and outside, thereby ensuring the stability of the valve body 6.

[0094] When the outer surface of the valve body 6 needs to be processed and only the inner part of the valve body 6 is clamped, the ventilation gas of the air pump moves upward through the ventilation groove 506, and enters the positioning elastic airbag 504 through the second through hole 507, so that the positioning elastic airbag 504 is inflated; thereby, the inner wall of the valve is clamped, thereby facilitating the processing of the outer surface.

[0095] The intelligent control system monitors the position and speed of the rack in real time, and adjusts the speed and direction of the motor through the controller to ensure that the rack moves smoothly and accurately to the predetermined position, including:

[0096] The current rack position and speed data are read through the sensor interface, the current rack position is compared with the predetermined position, and the position error is calculated. If necessary, the speed error can also be calculated, that is, the difference between the current speed and the expected speed.

[0097] The position error (and speed error, if used) is input to the controller, which calculates the control output based on the error. This output will be used to adjust the speed and direction of the motor. The specific calculations of the controller include: proportional term (P, proportional to the error), integral term (I, the cumulative effect of the error) and differential term (D, the rate of change of the error). The output of the controller is converted into an instruction format that the motor controller can accept. Among them,

[0098] ;

[0099] in, represents the proportionality coefficient, represents the integral coefficient; represents the differential coefficient; represents the proportionality coefficient of the speed error; The differential coefficient representing the speed error; Indicates at time The error between the current actual position of the rack and the predetermined (or expected) position when ; It represents the error between the actual speed of the rack and the expected speed at time t;

[0100] The command is sent to the motor controller through the communication interface. The command contains the speed and direction information that the motor should adjust. After receiving the command, the motor controller parses and executes the corresponding speed and direction adjustment. The motor drives the rack to move to the predetermined position according to the control signal.

[0101] Based on experience or reference to parameters of similar systems, set the initial proportional (P), integral (I), and differential (D) parameters for the controller. Perform multiple test runs to observe the performance of the rack moving to the predetermined position, especially the overshoot, settling time, and accuracy. If the system responds too slowly or the overshoot is too large, the proportional coefficient (P) can be appropriately increased to increase the response speed. If there is a steady-state error in the system, it can be eliminated by increasing the integral coefficient (I). If the system oscillates excessively, you can try to increase the differential coefficient (D) to reduce the overshoot, and repeat the test and adjustment process until the system performance meets the predetermined requirements.

[0102] Add real-time monitoring of sensor data and motor status to the control loop. If abnormal data or motor failure is detected, stop the motor immediately and sound an alarm. After the abnormality is handled, the system should be able to safely return to normal working condition.

[0103] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A high-pressure resistant and balanced pressure check valve clamping device for automobiles, comprising: A support base (1), a valve body (6); characterized in that it also comprises: A support portion, arranged on the support base (1); An outer clamping portion is arranged on the supporting portion to fix the valve body (6); the outer clamping portion comprises: an annular stabilizing member connected to the supporting portion; An internal gear (202) is arranged on the annular stabilizing member; A driving gear (204) meshingly connected with the internal gear (202); A first driving member, disposed on the annular stabilizing member, to drive the driving gear (204) to rotate; A first rack (205) meshingly connected to the driving gear (204) and connected to the annular stabilizing member; A second rack (403) is provided in a plurality of groups, wherein the plurality of groups of the second racks (403) are circumferentially distributed on the annular stabilizing member; A plurality of driven gears (401) are provided, wherein the plurality of driven gears (401) are circumferentially distributed on the annular stabilizing member and mesh with the second rack (403) and the internal gear (202), thereby driving the second rack (403) to move; a clamping member, arranged on one end of the first rack (205) and the second rack (403) facing each other, so as to clamp the valve body (6) from multiple directions, thereby ensuring that the valve body (6) is clamped; a placement portion, connected to the external clamping portion via a connecting portion, used to place the valve body (6), and cooperating with the external clamping portion to safely clamp the valve body (6); an internal clamping portion, arranged on the support base (1), cooperating with the placement portion, so that when the external clamping portion clamps the valve body (6), the valve body (6) is fixedly positioned from the inside of the valve body (6); the internal clamping portion comprises: an inflatable airbag (505), arranged on the support base (1), and one end of which is connected to the placement portion to inflate the internal clamping portion to achieve internal clamping of the valve body (6); The outer clamping portion further comprises: A first clamping ring groove (210) is formed on the annular stabilizing member; A first snap ring block (209), one end of which rotates in the first snap ring groove (210) and the other end of which is connected to the internal gear (202); a rack limiting plate (212), arranged on the first rack (205) and the second rack (403), so as to limit the movement tracks of the first rack (205) and the second rack (403); The annular stabilizer comprises: A first fixed circular ring (201) is arranged on the supporting portion; A supporting top plate (103) connected to the top end of the first fixing ring (201); A first through hole (104) is formed on the supporting top plate (103) and cooperates with the connecting portion; A second fixing circular ring (206) is sleeved inside the first fixing circular ring (201) and is connected to the supporting top plate (103); A plurality of first limiting grooves (208) are provided, wherein the plurality of first limiting grooves (208) are circumferentially opened on the first fixed circular ring (201) and are slidably connected to the first rack (205), the second rack (403) and the rack limiting plate (212); A plurality of second limiting grooves (207) are provided, wherein the plurality of second limiting grooves (207) are circumferentially opened on the second fixed ring (206) and are slidably connected to the first rack (205), the second rack (403) and the rack limiting plate (212); A plurality of fixed connecting rods (402) are provided, wherein one end of the plurality of fixed connecting rods (402) is connected to the supporting top plate (103), and the other end is connected to the driven gear (401); The clamping member comprises: A fixed block (301) connected to the first rack (205) and the inward end of the second rack (403); A spring telescopic rod (303), one end of which is connected to the fixing block (301); A clamping arc plate (304) connected to the other end of the spring telescopic rod (303); The first driving member comprises: A first motor (203) is disposed on the supporting top plate (103), and an output end thereof is connected to the driving gear (204); A second motor (211) is disposed on the supporting top plate (103), and an output end is connected to one of the driven gears (401), and is used synchronously with the first motor (203) to cope with emergencies and increase service life; The connecting portion comprises: A threaded through hole (405) is formed on the fixed connecting rod (402) and the driven gear (401); A threaded rod (404) is inserted into the threaded through hole (405); A limiting column (406), one end of which is connected to the bottom end of the threaded rod (404), and the other end of which is connected to the placement portion; The placement unit includes: A supporting disc (501) connected to the limiting column (406); A truncated table (502) is placed on the supporting disc (501), with the valve body (6) placed on the top; A positioning cylinder (503) is arranged at the center of the placing truncated table (502) so as to initially position the valve body (6); The inner clamping portion further comprises: A clamping positioning member, arranged on the placing truncated table (502); A venting groove (506) is provided at the center of the placing truncated table (502), is communicated with the positioning cylinder (503), and has a bottom end communicated with the inflatable airbag (505); The clamping positioning member comprises: A plurality of groups of second through holes (507) are provided, wherein the plurality of groups of second through holes (507) are circumferentially opened on the side wall of the positioning cylinder (503); A positioning elastic airbag (504) connected to the second through hole (507), thereby communicating with the inflatable airbag (505) through the positioning cylinder (503) and the ventilation groove (506); The support parts are provided in two groups, and the two groups of support parts are symmetrically arranged on the support base (1); the support parts include: A supporting side column (101), the bottom end of which is connected to the supporting base (1); The supporting side plate (102) is connected to the top end of the supporting side column (101) and is also connected to the first fixing ring (201).

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