CN112847203A

CN112847203A - Workpiece detection pressing platform

Info

Publication number: CN112847203A
Application number: CN202110172073.9A
Authority: CN
Inventors: 龙亚彬; 康明; 瞿森林; 吴付右; 南青山; 谢安
Original assignee: Hubei Desin Automobile Technology Co ltd
Current assignee: Hubei Desin Automobile Technology Co ltd
Priority date: 2021-02-08
Filing date: 2021-02-08
Publication date: 2021-05-28

Abstract

The invention discloses a workpiece detection pressing platform which comprises a rack, a pressing plate and a pressing plate, wherein a lifting platform is arranged on the rack; the support plate is used for placing a workpiece, and a yielding structure matched with the workpiece is arranged on the support plate; hold-down mechanism locates the backup pad top, and hold-down mechanism includes pressure head subassembly and driving piece, and the elevating platform bottom surface is located to the pressure head subassembly, and the pressure head subassembly has initial position and compresses tightly the operating position of work piece, and the driving piece links to each other with the elevating platform in order to drive the elevating platform and go up and down, realizes the switching of pressure head subassembly between initial position and operating position, and the pressure head subassembly is scalable in order to support tight work piece surface not co-altitude department. The workpiece detection pressing platform provided by the invention is provided with the pressing mechanism, the pressing mechanism is provided with the telescopic pressing head assembly, and the pressing head assembly can be abutted against and pressed against different heights of the surface of the workpiece, so that the state that the workpiece is screwed by a plurality of bolts in the use process is simulated, and the workpiece is convenient to detect.

Description

Workpiece detection pressing platform

Technical Field

The invention relates to the technical field of pressing equipment, in particular to a workpiece detection pressing platform.

Background

The pressing mechanism comprises manual pressing, mechanical pressing and hydraulic pressing. The mechanical pressing mechanism consists of a driving part, a pressing head and a workbench. When the workpiece is compressed, the driving head of the driving piece moves downwards to compress the workpiece.

At present, to the work piece of need installation on the precision structure, often detect in advance whether it is up to standard receiving screw tightening or each item data when being compressed tightly, because this kind of work piece is mostly irregular shape, the surface unevenness, and surface structure is complicated, the mode of adopting screw tightening is wasted time and energy, can't satisfy the requirement of takt, consequently can use a work piece to detect and use the pressure platform, the last hold-down mechanism that sets up of pressure platform, compress tightly the work piece through hold-down mechanism and simulate the work piece and receive the state when a plurality of screws are screwed up everywhere. Because each pressure point height on the surface of the workpiece is inconsistent, and because of the existence of manufacturing tolerance, the height of the same pressure point position between different tested pieces is also inconsistent, the pressure head only offsets with the high position when the ordinary pressing mechanism presses, the pressure head continuously descends to be contacted with the low position, thereby the stress on the surface of the workpiece is uneven, and some positions can not be pressed by the pressure head.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a workpiece detection pressing platform which is provided with a pressing mechanism, wherein a telescopic pressure head assembly is arranged on the pressing mechanism, the pressure head assembly can abut against different heights of the surface of a workpiece, the height difference of the same position caused by manufacturing tolerance can be eliminated, pressing is realized, the state that the workpiece is screwed by a plurality of bolts in the use process is simulated, and the workpiece detection is convenient.

According to a first aspect embodiment of the invention, a workpiece detection pressing platform comprises a frame, a lifting platform and a pressing mechanism, wherein the frame is provided with the lifting platform; the support plate is used for placing a workpiece, and a yielding structure matched with the workpiece is arranged on the support plate; hold-down mechanism locates the backup pad top, and hold-down mechanism includes pressure head subassembly and driving piece, and the elevating platform bottom surface is located to the pressure head subassembly, and the pressure head subassembly has initial position and compresses tightly the operating position of work piece, and the driving piece links to each other with the elevating platform in order to drive the elevating platform and go up and down, realizes the switching of pressure head subassembly between initial position and operating position, and the pressure head subassembly is scalable in order to support tight work piece surface not co-altitude department.

The workpiece detection pressing platform provided by the embodiment of the invention at least has the following technical effects: the workpiece is fixed on the supporting plate, the driving piece drives the pressure head to descend, and after the first pressure rod is contacted with the workpiece, the pressure head continues to descend, so that the first pressure rod stretches and retracts according to the height condition of the surface of the workpiece until the first pressure rod compresses the workpiece. The first compression rod is telescopic and can prop against different heights of the surface of the workpiece and compress the workpiece.

According to some embodiments of the invention, the safety limiting structure is further included for fixing the pressure head assembly at the initial position. The workpiece detection pressing platform provided by the embodiment of the invention at least has the following technical effects: prevent that the pressure head from falling and causing the injury when operating personnel operates under the pressure head subassembly, the operating personnel of being convenient for overhauls or changes the work piece.

According to some embodiments of the present invention, the safety limiting structure includes an automatic limiting structure, one end of the automatic limiting structure is fixedly connected to the frame, the other end of the automatic limiting structure is provided with a telescopic limiting member, the lifting platform is provided with a first connection hole, and when the pressing head assembly is located at the initial position, the telescopic limiting member extends into the first connection hole to fix the pressing head assembly. The workpiece detection pressing platform provided by the embodiment of the invention at least has the following technical effects: in this device working process, when the elevating platform drove the pressure head subassembly and get back to initial position, automatic limit structure started, and is fixed with elevating platform and pressure head subassembly.

According to some embodiments of the invention, the safety limiting structure further comprises a manual limiting structure, one end of the manual limiting structure is fixedly connected to the frame, the other end of the manual limiting structure is provided with a second limiting hole, the second limiting hole is provided with a detachable limiting rod, the lifting platform is correspondingly provided with a second connecting hole, and when the pressure head assembly is located at the initial position, the second limiting hole is aligned with the second connecting hole and can fix the pressure head assembly through the limiting rod. The workpiece detection pressing platform provided by the embodiment of the invention at least has the following technical effects: when this device outage was closed, need overhaul, manual limit structure was used for fixing elevating platform and pressure head subassembly, prevented that the pressure head subassembly from falling and crushing maintainer.

According to some embodiments of the invention, the pressure head assembly comprises a pressure structure and a pressure head seat, the pressure head seat is arranged on the bottom surface of the lifting platform, the pressure structure is connected to the bottom of the pressure head seat, the pressure structure is connected with a telescopic end, and the pressure structure can transmit pressure to the telescopic end. The workpiece detection pressing platform provided by the embodiment of the invention at least has the following technical effects: the pressure of the telescopic end can be changed by adjusting the pressure structure.

According to some embodiments of the present invention, the pressure structure is a nitrogen spring, the nitrogen spring has a driving cavity, the driving cavity has an air inlet channel, an air cavity is provided in the press head seat, compressed air is introduced into the air cavity, the air inlet channels of all the pressure structures are all communicated with the air cavity, and an air valve is provided on the air inlet channel. The workpiece detection pressing platform provided by the embodiment of the invention at least has the following technical effects: the pressing force applied to all parts of the surface of the workpiece by each telescopic end is the same, so that the stress of the workpiece is uniform.

According to some embodiments of the present invention, the pressure structure is a hydraulic telescopic assembly, the hydraulic telescopic assembly has a pressure chamber, the pressure chamber is provided with a liquid inlet channel, a hydraulic chamber is arranged in the pressure head seat, the hydraulic chamber is filled with liquid, and the liquid inlet channels of all the pressure structures are communicated with the hydraulic chamber. The workpiece detection pressing platform provided by the embodiment of the invention at least has the following technical effects: the pressing force applied to all parts of the surface of the workpiece by each telescopic end is the same, so that the stress of the workpiece is uniform.

According to some embodiments of the invention, a first strut is attached to the partially telescoping end. The workpiece detection pressing platform provided by the embodiment of the invention at least has the following technical effects: pressure structure can be to first depression bar transmission pressure, and the flexible end has been prolonged in the setting of first depression bar, is applicable to multiple operating mode.

According to some embodiments of the invention, two second pressing rods are connected to the partially telescopic end, the two second pressing rods form a group, and the second pressing rods in the same group are rotatably connected to the same pressure structure. The workpiece detection pressing platform provided by the embodiment of the invention at least has the following technical effects: the distance between the second compression bars in the same group is small, the adjacent positions on the surface of the workpiece can be simultaneously compressed, and the second compression bars can rotate according to the height of the surface of the workpiece to compress the workpiece.

According to some embodiments of the invention, the pressure structure output is hinged to a turning block, the second pressure bar of the same group being hinged to the turning block. The workpiece detection pressing platform provided by the embodiment of the invention at least has the following technical effects: the second pressure lever can always keep a state close to vertical, and the contact area between the second pressure lever and the workpiece is increased.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of an installation structure of an embodiment of the present invention;

FIG. 2 is a schematic diagram of a portion of an embodiment of the present invention;

FIG. 3 is an exploded view of a portion of the structure of an embodiment of the present invention;

FIG. 4 is a schematic view of the hold-down mechanism;

FIG. 5 is a schematic view of the mounting arrangement of the ram assembly;

FIG. 6 is a schematic view of a press structure and a mounting structure of a first press bar;

FIG. 7 is a schematic view of the pressure structure and the second plunger;

FIG. 8 is a cross-sectional view of the pressure structure and the second pressure bar;

fig. 9 is a schematic view of the pressure structure and the working state of the second pressure lever.

Reference numerals:

the anti-collision device comprises a frame 1000, a workbench 1010, a lifting table 1020, a supporting plate 1100, a yielding structure 1110, a guide structure 1200, a guide hole 1210 and an anti-collision rod 1300;

the pressing mechanism 2000, the pressing head assembly 2100, the pressing head seat 2110, the driving piece 2200, the connecting structure 2210, the connecting part 2211, the connecting hole 2212, the fixing part 2213, the clamping groove 2214, the first pressing rod 2300, the pressure structure 2400, the air inlet channel 2410, the air valve 2420, the piston rod 2430, the cylinder 2440, the driving cavity 2450, the second pressing rod 2500 and the rotating block 2510;

safety limit structure 3000, automatic limit structure 3100, first spacing hole 3110, first connecting hole 3120, flexible locating part 3130, detect support 3140, first sensor 3150, second sensor 3160, manual limit structure 3200, second spacing hole 3210, second connecting hole 3220, gag lever post 3230 places hole 3240, third sensor 3250, fourth sensor 3260.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 2, a workpiece detecting and pressing platform according to an embodiment of the present invention includes a frame 1000, a supporting plate 1100, and a pressing mechanism 2000.

The frame 1000 is provided with a lifting platform 1020; a workbench 1010 is fixedly arranged at the lower part of the frame 1000, and a support plate 1100 is fixed on the workbench 1010 and used for placing a workpiece; specifically, the present embodiment is mainly used for pressing a workpiece having an irregular surface, and therefore, referring to fig. 2, the support plate 1100 is provided with a relief structure 1110 corresponding to the workpiece to be pressed, so that the workpiece is placed on the support plate 1100 as smoothly as possible.

Referring to fig. 2 to 4, the pressing mechanism 2000 is disposed above the supporting plate 1100, the pressing mechanism 2000 includes a pressing head assembly 2100 and a driving member 2200, a pressing head seat 2110 is disposed on a bottom surface of the lifting table 1020, the pressing head assembly 2100 is connected to a bottom of the pressing head seat 2110, the pressing head assembly 2100 has an initial position and a working position for pressing the workpiece, the driving member 2200 is connected to the lifting table 1020 to drive the lifting table 1020 to lift, so as to switch the pressing head assembly 2100 between the initial position and the working position, the driving member 2200 may be a lifting cylinder, a body of the lifting cylinder is mounted on the frame 1000, and a telescopic end of the lifting cylinder is.

Specifically, referring to fig. 3, the lifting platform 1020 is provided with a connecting structure 2210, the connecting structure 2210 includes a connecting portion 2211 and a fixing portion 2213, the connecting portion 2211 is provided with a connecting hole 2212 for connecting with the driving shaft of the driving member 2200, the fixing portion 2213 is fixed on the lifting platform 1020 by a screw, and the fixing portion 2213 is radially provided with a slot 2214 matched with the connecting portion 2211 for clamping the connecting portion 2211 to the fixing portion 2213.

The connection structure 2210 is provided to facilitate the connection and disconnection between the driving member 2200 and the lifting platform 1020, and when the driving member is detached, the screw is removed to separate the connection structure 2210 (the fixing portion 2213) from the lifting platform 1020, the connection portion 2211 is removed from the slot 2214, and the connection portion 2211 is detached from the driving shaft of the driving member 2200, so that the detachment is completed.

The ram assembly 2100 is retractable to grip the workpiece surface at different heights. Because the surface of the workpiece is uneven, the ordinary pressing mechanism 2000 cannot press all parts of the workpiece and simulate the state that the workpiece is screwed by a plurality of bolts in the using process, and the pressing head assembly 2100 in the embodiment can stretch according to different heights of the surface of the workpiece, so that the bottom of the pressing head assembly 2100 can be abutted against the parts with different heights of the surface of the workpiece and press all parts of the workpiece.

Referring to fig. 2, in some embodiments of the present invention, a safety limiting structure 3000 is further included for fixing the indenter assembly 2100 in an initial position, so as to prevent an injury caused by an indenter falling when an operator operates under the indenter assembly 2100, and facilitate the operator to repair or replace a workpiece.

Referring to fig. 3, in a further embodiment of the present invention, the safety limiting structure 3000 includes an automatic limiting structure 3100, one end of the automatic limiting structure 3100 is fixedly connected to the frame 1000, the other end of the automatic limiting structure 3100 is provided with a retractable limiting member 3130, the lifting table 1020 is provided with a first connection hole 3120, and when the indenter assembly 2100 is located at the initial position, the retractable limiting member 3130 extends into the first connection hole 3120 to fix the indenter assembly 2100.

In the working process of the device, when the lifting platform 1020 drives the pressing head assembly 2100 to return to the initial position, the automatic limiting structure 3100 is started. Specifically, the lower end of the automatic limiting structure 3100 is provided with a first limiting hole 3110, the telescopic end of the telescopic limiting member 3130 can extend out of the first limiting hole 3110, the telescopic limiting member 3130 can be an air cylinder, when the ram assembly 2100 is raised to the initial position, the first limiting hole 3110 is aligned with the first connection hole 3120, and the telescopic end of the telescopic limiting member 3130 passes through the first limiting hole 3110 and extends into the first connection hole 3120.

Specifically, a detection bracket 3140 is further disposed on the rack 1000, and the detection bracket 3140 is matched with the automatic limiting structure 3100 to ensure that the work is performed safely. One end of the detecting bracket 3140 is fixed to the frame 1000, and the other end is provided with a first sensor 3150, and the height of the first sensor 3150 is flush with the surface height of the lifting table 1020 at the initial position, when the first sensor 3150 senses that the lifting table 1020 moves in place, the first sensor 3150 sends out a command signal to drive the retractable limiting element 3130, and the retractable end of the retractable limiting element 3130 extends into the first connecting hole 3120 to fix the lifting table 1020.

The second sensor 3160 is disposed on the lifting platform 1020, and the sensing end of the second sensor 3160 extends into the first connection hole 3120, when the second sensor 3160 detects that the retractable end of the retractable stopper 3130 is located in the first connection hole 3120, the driving member 2200 can not drive the lifting platform 1020 to move any more; when the second sensor 3160 cannot detect the extending end of the extending-retracting limiting element 3130, the driving element 2200 may work normally.

Referring to fig. 3, in a further embodiment of the present invention, the safety limit structure 3000 further includes a manual limit structure 3200, and when the apparatus is turned off in case of power failure and needs to be repaired, the manual limit structure 3200 is used to fix the lifting platform 1020 and the indenter assembly 2100, so as to prevent the indenter assembly 2100 from falling down and injuring the maintainer. One end of the manual limiting structure 3200 is fixedly connected to the rack 1000, a second limiting hole 3210 is formed in the other end of the manual limiting structure 3200, a detachable limiting rod 3230 is arranged on the second limiting hole 3210, a second connecting hole 3220 is correspondingly formed in the lifting table 1020, and when the pressure head assembly 2100 is located at the initial position, the second limiting hole 3210 is aligned to the second connecting hole 3220 and can fix the pressure head assembly 2100 through the limiting rod 3230.

Specifically, manual limit structure 3200 upper end is equipped with places hole 3240, and gag lever post 3230 is inserted and is located and place hole 3240 in, places the other third sensor 3250 that is equipped with of hole 3240 to whether detect gag lever post 3230 and be located and place hole 3240, prevent that the gag lever post from still starting this device by force when second connecting hole 3220 is downthehole, lead to manual limit structure 3200 to damage. When the maintenance is started, the maintenance personnel take down the limiting rod 3230, pass the limiting rod 3230 through the second limiting hole 3210 and insert the limiting rod into the second connecting hole 3220, and fix the lifting table 1020.

A fourth sensor 3260 is arranged on the lifting platform 1020, the sensing end of the fourth sensor 3260 extends into the second connecting hole 3220, and when the fourth sensor 3260 detects that the limiting rod 3230 is located in the second connecting hole 3220, a maintenance worker can start maintenance; when the fourth sensor 3260 cannot detect the limiting rod 3230, the device gives out a warning, so that a maintainer cannot overhaul the device, and the device cannot be electrified and started to work. After the maintenance is completed, the maintenance personnel take down the limiting rod 3230 from the second limiting hole 3210 and insert the limiting rod 3230 into the placing hole 3240, so that the device can be restarted.

Referring to fig. 5, in some embodiments of the present invention, the ram assembly 2100 includes a pressure structure 2400 and a pressure head base 2110, the pressure head base 2110 is disposed on a bottom surface of the lifting table 1020, the pressure structure 2400 is connected to a bottom of the pressure head base 2110, the pressure structure 2400 is connected to a telescopic end, the pressure structure 2400 can transmit pressure to the telescopic end, and the pressure of the telescopic end can be changed by adjusting the pressure structure 2400.

Referring to fig. 8, in a further embodiment of the present invention, the pressure structure 2400 is a nitrogen spring, and the nitrogen spring has the advantages of small volume, large elastic force, stable operation, long service life, no need of pre-tightening, controllable elastic force, and the like. The nitrogen spring comprises a piston rod 2430 and a cylinder 2440, a drive chamber 2450 is arranged in the cylinder 2440, the top part of the piston rod 2430 is embedded in the drive chamber 2450 and can slide along the depth direction of the drive chamber 2450, the piston rod 2430 is hermetically connected in the drive chamber 2450, and the lower end of the piston rod 2430 is connected with a telescopic end.

An air cavity is arranged in the press head seat 2110, compressed gas such as nitrogen is introduced into the air cavity, an air inlet channel 2410 is arranged in the driving cavity 2450, the air inlet channels 2410 of all the pressure structures 2400 are communicated with the air cavity, and an air valve 2420 is arranged on the air inlet channel 2410. Compressed nitrogen enters the drive chamber 2450 through the inlet channel 2410, generating pressure, thereby transmitting pressure to the telescoping end; and all the pressure structures 2400 are communicated with the air cavity, so that the air pressure in each driving cavity 2450 is equal, the generated pressure is the same, and the pressing force applied to all parts of the surface of the workpiece by each telescopic end is the same, so that the stress on the workpiece is uniform. Preferably, an air pressure sensor is further arranged in the pressure structure 2400, so that the magnitude of the pressing force can be monitored in real time.

When the ram assembly 2100 is installed, the piston rod 2430 is pressed into the drive chamber 2450, displacing air from the drive chamber 2450, and charging pressurized nitrogen into the drive chamber 2450 via the air inlet passage 2410. When the air valve 2420 is opened during working, the pressure in the driving cavity 2450 can be changed by changing the pressure in the air cavity due to the fact that the driving cavity 2450 is communicated with the air cavity, and therefore the pressure applied to the telescopic end is changed.

In other embodiments of the present invention, the pressure structure 2400 is a hydraulic telescopic assembly, the hydraulic telescopic assembly includes a telescopic rod and a cylinder, the cylinder has a pressure chamber therein, a top portion of the telescopic rod is embedded in the pressure chamber and can slide along a depth direction of the pressure chamber, the telescopic rod is connected in the pressure chamber in a sealing manner, and a lower end of the telescopic rod is connected to the telescopic end.

In a further embodiment of the present invention, a hydraulic chamber is disposed in the pressure head base 2110, the hydraulic chamber is filled with liquid, the pressure chamber is provided with liquid inlet channels, and the liquid inlet channels of all the pressure structures 2400 are communicated with the hydraulic chamber. Liquid enters the pressure cavity through the liquid inlet channel and then transmits pressure to the telescopic end; and all the pressure cavities are communicated with the hydraulic cavity, so that hydraulic pressure in each pressure cavity is equal, generated pressure is the same, and pressing force applied to all parts of the surface of the workpiece by each telescopic end is the same, so that the stress of the workpiece is uniform.

The liquid inlet valve is arranged on the liquid inlet channel, when the liquid inlet valve works, the liquid inlet valve is opened, and the pressure cavity is communicated with the hydraulic cavity, so that the hydraulic pressure in the pressure cavity can be changed by changing the hydraulic pressure in the hydraulic cavity, and the pressure applied to the telescopic end is changed.

It is contemplated that the pressure structure 2400 may also be an element capable of providing a driving force, such as a common spring, a common cylinder, etc., and that different elements may be selected according to different pressing forces and size requirements.

Referring to fig. 6, in some embodiments of the present invention, a first press rod 2300 is connected to a portion of the telescopic end, and the pressure structure 2400 can transmit pressure to the first press rod 2300.

Because the pressure structure 2400 is relatively large in size, the distance between the plurality of first pressing rods 2300 is relatively large, and the positions close to each other on the workpiece cannot be pressed at the same time, so as to meet the pressing requirements of the surfaces of the workpiece, referring to fig. 7 and 9, in some embodiments of the present invention, two second pressing rods 2500 are connected to a part of the telescopic ends, two second pressing rods 2500 are in one group, the second pressing rods 2500 in the same group are rotatably connected to the same pressure structure 2400, the pressure structure 2400 can transmit pressure to the second pressing rods 2500, and the two second pressing rods 2500 in the same group are in one group, and the second pressing rods 2500 in the same group are rotatably connected to the same pressure structure 2400. The distance between the second compression bars 2500 in the same group is small, the adjacent positions of the workpieces can be compressed simultaneously, and due to the fact that the surfaces of the workpieces are not flat, in order to meet the compression requirements of all height positions of the surfaces of the workpieces, the second compression bars 2500 can rotate according to the height of the surfaces of the workpieces to compress the workpieces.

Referring to fig. 9, in a further embodiment of the present invention, the output end of the pressure structure 2400 is hinged to a rotation block 2510, and the second pressing rod 2500 of the same group is hinged to the rotation block 2510. Because the second pressing rods 2500 are fixed in length, when the heights of the surfaces of the workpieces contacted by the same group of second pressing rods 2500 are different, the two second pressing rods 2500 drive the rotating blocks 2510 to rotate, so that the same group of second pressing rods 2500 can be abutted against the surfaces of the workpieces.

If the second pressing rod 2500 is fixedly connected to the rotating block 2510, when the rotating block 2510 rotates, the second pressing rod 2500 also rotates to form a certain angle with the plane, so that the contact area between the second pressing rod 2500 and the surface of the workpiece is reduced, and the pressing effect is weakened. Therefore, in this embodiment, the second pressing rod 2500 is hinged to the rotating block 2510, and the guide member is disposed at the second pressing rod 2500, so that when the rotating block 2510 is inclined, the second pressing rod 2500 can always keep a nearly vertical state and contact with the workpiece as much as possible, thereby satisfying the pressing requirement on each part of the surface of the workpiece and ensuring the pressing effect.

Referring to fig. 4, in some embodiments of the invention, a guide structure 1200 is coupled to the lift table 1020 to provide a guide for the raising and lowering of the lift table 1020. Specifically, the guiding structure 1200 is a guiding column, the left and right ends of the lifting table 1020 are provided with a guiding hole 1210 therethrough, and the guiding column is slidably inserted into the guiding hole 1210 and connected to the workbench 1010. The driving member 2200 drives the lifting table 1020 to lift along the guide post, so as to drive the head seat 2110 to lift, thereby accurately pressing the head seat 2110 to the workpiece position.

Referring to fig. 4, in some embodiments of the present invention, an anti-collision bar 1300 is connected to a bottom surface of the lifting platform 1020, the anti-collision bar 1300 moves up and down along with the lifting platform 1020, and a bottom of the anti-collision bar 1300 is lower than a bottom of the head base 2110. When the lifting platform 1020 falls down, the anti-collision rod 1300 will collide with the working platform 1010 first and prevent the lifting platform 1020 from descending continuously, so as to prevent the press head seat 2110 from colliding with the working platform 1010 and damaging the first press rod 2300 or the second press rod 2500.

The using method of the invention comprises the following steps: fixing a workpiece on a supporting plate 1100, installing a pressure structure 2400 at the bottom of a pressure head seat 2110 according to the surface condition of the workpiece, installing a corresponding first pressure rod 2300 or second pressure rod 2500 at the telescopic end of the pressure structure 2400, driving a driving piece 2200 to drive a lifting table 1020 to descend, and after the first pressure rod 2300 and the second pressure rod 2500 are contacted with the workpiece, continuing descending the lifting table 1020 so that the first pressure rod 2300 expands and contracts according to the surface height condition of the workpiece, and rotating the second pressure rod 2500 according to the surface height condition until the first pressure rod 2300 and the second pressure rod 2500 are pressed against the surface of the workpiece; the air valve 2420 (or the liquid inlet valve) is opened, and the pressure in the air chamber (or the hydraulic chamber), namely the pressure in the driving chamber 2450 (or the pressure chamber) is changed according to requirements, so that the pressing force of the first pressing rod 2300 and the second pressing rod 2500 on the applied workpiece is changed.

When the workpiece or other accessories need to be replaced, the driving member 2200 drives the lifting table 1020 to return to the initial position, and when the first sensor 3150 senses that the lifting table 1020 moves in place, the telescopic end of the telescopic limiting member 3130 extends into the first connection hole 3120 to fix the lifting table 1020. After the replacement, the retractable end of the retractable stopper 3130 is retracted, and the driving member 2200 continues to drive the ram assembly 2100.

When the device needs to be overhauled, the device is powered off, the maintainer takes down the limiting rod 3230, the limiting rod 3230 penetrates through the second limiting hole 3210 and is inserted into the second connecting hole 3220, and the lifting table 1020 is fixed. After the maintenance is completed, the maintenance personnel take down the limiting rod 3230 from the second limiting hole 3210 and insert the limiting rod 3230 into the placing hole 3240, so that the device can be restarted.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like are intended to mean 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 invention. In this specification, the schematic representations of the terms used above do not necessarily refer 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.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a work piece detects compresses tightly platform which characterized in that includes:

a frame (1000) provided with a lifting platform (1020);

the support plate (1100) is used for placing a workpiece, and a yielding structure (1110) matched with the workpiece is arranged on the support plate (1100);

the pressing mechanism (2000) is arranged above the supporting plate (1100), the pressing mechanism (2000) comprises a pressing head assembly (2100) and a driving piece (2200), the pressing head assembly (2100) is arranged on the bottom surface of the lifting platform (1020), the pressing head assembly (2100) is provided with an initial position and presses the working position of the workpiece, the driving piece (2200) is connected with the lifting platform (1020) to drive the lifting platform (1020) to lift, the pressing head assembly (2100) is switched between the initial position and the working position, and the pressing head assembly (2100) can stretch to tightly abut against different heights of the surface of the workpiece.

2. The workpiece inspection pressing platform of claim 1, wherein: the pressing head further comprises a safety limiting structure (3000) used for fixing the pressing head assembly (2100) at an initial position.

3. The workpiece inspection pressing platform of claim 2, wherein: safe limit structure (3000) are including automatic limit structure (3100), automatic limit structure (3100) one end fixed connection is in on frame (1000), be equipped with flexible locating part (3130) on the other end, be equipped with first connecting hole (3120) on elevating platform (1020), work as when pressure head subassembly (2100) is located initial position, flexible locating part (3130) stretch into first connecting hole (3120) with fixed pressure head subassembly (2100).

4. The workpiece inspection pressing platform of claim 3, wherein: safety limit structure (3000) still includes manual limit structure (3200), manual limit structure (3200) one end fixed connection be in on frame (1000), be equipped with spacing hole of second (3210) on the other end, be equipped with detachable gag lever post (3230) on spacing hole of second (3210), the corresponding second connecting hole (3220) that is equipped with on elevating platform (1020), work as when pressure head subassembly (2100) is located initial position, spacing hole of second (3210) with second connecting hole (3220) aligns to can fix through gag lever post (3230) pressure head subassembly (2100).

5. The workpiece inspection pressing platform of claim 1, wherein: the pressure head assembly (2100) comprises a pressure structure (2400) and a pressure head seat (2110), the pressure head seat (2110) is arranged on the bottom surface of the lifting table (1020), the pressure structure (2400) is connected to the bottom of the pressure head seat (2110), a telescopic end is connected to the pressure structure (2400), and the pressure structure (2400) can transmit pressure to the telescopic end.

6. The workpiece inspection pressing platform of claim 5, wherein: the pressure structure (2400) is a nitrogen spring, the nitrogen spring is provided with a driving cavity (2450), the driving cavity (2450) is provided with an air inlet channel (2410), an air cavity is arranged in the press head seat (2110), compressed air is introduced into the air cavity, the air inlet channels (2410) of all the pressure structures (2400) are communicated with the air cavity, and an air valve (2420) is arranged on the air inlet channel (2410).

7. The workpiece inspection pressing platform of claim 5, wherein: pressure structure (2400) is the flexible subassembly of hydraulic pressure, the flexible subassembly of hydraulic pressure has a pressure chamber, the pressure chamber is equipped with inlet channel, be equipped with the hydraulic pressure chamber in pressure head seat (2110), the hydraulic pressure chamber lets in liquid, all pressure structure (2400) inlet channel all with the hydraulic pressure chamber intercommunication.

8. The workpiece inspection pressing platform according to claim 6 or 7, wherein: wherein a part of the telescopic end is connected with a first pressure lever (2300).

9. The workpiece inspection pressing platform of claim 8, wherein: wherein, part the flexible end is connected with two second depression bars (2500), two second depression bars (2500) are one set, the second depression bar (2500) of the same group rotate and connect in the same pressure structure (2400).

10. The workpiece inspection clamping platform of claim 9, wherein: the output end of the pressure structure (2400) is hinged with a rotating block (2510), and the second pressing rods (2500) in the same group are hinged with the rotating block (2510).