CN217321086U - Workpiece marking mechanism - Google Patents

Abstract

The utility model provides a workpiece marking mechanism which is arranged on a feeding assembly line of a logistics system and comprises a marking device; the feeding assembly line is provided with a marking station, the marking device is arranged on one side of the marking station, and the marking device comprises a marking frame, a marking holding clamp block and a marking head; embrace the clamp splice through beating and clip the work piece top, embrace the intraoral mark of beating of clamp splice clamp through beating the mark and beat the mark at the work piece top, be applicable to the thin slice form work piece top that the size is thin, the area is big, weight is big and beat the mark, be applicable to the automatic commodity circulation of work piece simultaneously and transport.

Description

Workpiece marking mechanism

Technical Field

The utility model particularly relates to a work piece marking mechanism.

Background

In the vacuum helium leak detection process, a product to be subjected to leak detection is required to be sent into a vacuum box, helium is used as a tracer gas, the helium is filled into a workpiece after the vacuum box is vacuumized, and then the leak condition of the workpiece is detected through a helium leak detector.

After the workpiece is subjected to leakage detection, the workpiece qualified in leakage detection needs to be processed in the next step, and the unqualified workpiece needs to be reworked, so that a leakage detection result needs to be marked on the workpiece after the leakage detection.

SUMMERY OF THE UTILITY MODEL

Based on above problem, an object of the utility model is to provide a work piece marking mechanism is applicable to that the size is thin, the area is big, the big lamellar work piece top of weight is beaten the mark, is applicable to the transportation of the logistics of following certainly of work piece simultaneously.

In order to realize the above purpose, the utility model discloses a technical scheme be: a workpiece marking mechanism is arranged on an upper material flow line of a material flow system and comprises a marking device;

a marking station is arranged on the feeding assembly line, and the marking device is arranged on one side of the marking station;

the marking device comprises a marking frame, a marking holding clamp block and a marking head; the marking frame is arranged on the side part of the marking station, the marking holding clamp block is slidably arranged on the side part of the marking frame above the marking station through a marking cylinder, the bottom of the marking holding clamp block is provided with a clamp opening matched with the top of a workpiece to be processed, and the marking head is arranged in the clamp opening of the marking holding clamp block;

the marking device is controlled by a controller.

The workpiece to be processed is a thin plate shell product, after the workpiece is subjected to vacuum helium leak detection, the workpiece assembled on the tooling plate moves to a marking station along with an upper material flow line of a material flow system, a marking cylinder drives a marking holding clamp block to descend to enable a clamp opening to clamp the top of the workpiece, and a marking head marks the top of the workpiece; after marking is finished, the marking device returns to the initial safety position, so far, marking of the workpiece is finished, and the tooling plate drives the workpiece to move to the next station along the production line of the logistics system so as to perform corresponding operation.

Specifically, a transition connecting seat is installed on the marking frame, an air cylinder installing plate is installed on the transition connecting seat and located above the marking station, a cylinder body of a marking air cylinder is connected with the air cylinder installing plate, and a piston rod vertically penetrates through the air cylinder installing plate downwards and then is connected with a marking holding clamping block; when the marking cylinder extends, the marking holding clamping block is driven to descend to the position where the clamping opening clamps the top of a workpiece, and when the marking cylinder contracts, the marking holding clamping block is driven to ascend to an initial safety position.

More specifically, beat the mark device and still including beating the mark guide arm, two perpendicular linear bearing that set up install the both sides of beating the mark cylinder on the cylinder mounting panel, beat the mark guide arm respectively after passing linear bearing with beat mark and embrace the clamp splice top and be connected. The marking guide rod plays a role in guiding and ensures that the marking clamp block is vertically lifted. More specifically, the tops of the two marking guide rods are connected through a guide rod connecting block.

Specifically, the marking head comprises a front cover, a shell, a rear cover, a marking rod, a marking spring, a spring limiting block, a beating core, a beating trigger block, a reset sheet and a beating spring, wherein the front cover and the rear cover are respectively sleeved at the front end and the rear end of the shell, and a first inner cavity, a second inner cavity and a third inner cavity, the cross-sectional dimensions of which are gradually reduced from front to back, are arranged in the shell; the hammering spring is arranged in the third inner cavity, and the rear end of the hammering spring is abutted against the rear cover; the hammering core is in clearance fit with the second inner cavity, the front end of the hammering core extends radially outwards to form a convex ring in clearance fit with the first inner cavity, the rear end of the hammering core is abutted against the hammering spring, the front section of the hammering core is provided with an axial first inner hole, and the front end of the hammering core, close to the convex ring, is provided with a second inner hole which radially penetrates through the first inner hole; the hammering trigger block is in clearance fit with the second inner hole, the length of the hammering trigger block does not exceed the inner diameter of the second inner cavity, and a third inner hole matched with the first inner hole in size is formed in the hammering trigger block; the reset sheet is arranged at an opening at one end of the second inner hole and presses the hammering trigger block to enable the third inner hole and the first inner hole to be not coaxial; the spring limiting block is arranged in the first inner cavity, and the front end and the rear end of the spring limiting block are respectively abutted against the front end of the front cover and the front end of the beating core convex ring; the marking spring is arranged in the inner cavity of the front cover, and the rear end of the marking spring is abutted to the spring limiting block; the marking rod penetrates through the marking spring and the spring reset block after the front cover is sequentially penetrated, the middle section of the marking rod is arranged with the clamping ring and the rear section which are abutted to the front end of the marking spring, and the first inner hole is coaxial, and the rear end of the marking rod axially inwardly contracts to form a boss which is abutted to the front end of the beating trigger block.

Before marking, the tooling plate drives a workpiece to be positioned to a marking station, and the marking cylinder drives the marking holding clamp block to descend to enable the clamp opening to clamp the top of the workpiece so as to conduct center guide on the workpiece, so that the marking head is ensured to correspond to the center of the top of the workpiece; in the downward movement process of the marking head along with the marking cylinder, the marking head moves towards the rear cover under the extrusion of the top of the workpiece and pushes the hammering trigger block at the same time, because the hammering trigger block is positioned in the second inner cavity at the moment, the third inner hole is not concentric with the first inner hole, the marking rod simultaneously pushes the hammering trigger block and the hammering core to move together until the hammering trigger block is extruded into the third inner cavity, and during the period, the hammering trigger block simultaneously slides along the second inner hole in the radial direction to enable the third inner hole and the first inner hole to be concentric, at the moment, the reset sheet is pressed to be deformed by the hammering trigger block, and the marking spring and the hammering spring are pressed to be contracted;

when the hammering trigger block enters the third inner cavity to enable the third inner hole to be concentric with the first inner hole, the compressed hammering spring rebounds and pushes the hammering core back to the second inner cavity from the third inner cavity, the hammering mark post is struck in the hammering core back pushing process, and the front end of the hammering mark post is marked at the top of the workpiece;

after marking, the cylinder return stroke moves upwards, the marking rod returns to the initial state under the effect of marking the spring and beating the spring, after the beating trigger block returns to the second inner cavity, the reset sheet resets and presses the beating trigger block to the position where the third inner hole and the second inner hole are not coaxial, and the front end of the beating trigger block abuts against the boss at the rear end of the marking rod again to prepare for marking next time.

More specifically, two beat mark and embrace the clamp splice and be located to beat mark station top department through two marking cylinder slidable mounting in beating the mark side part respectively, beat mark head including set up respectively in two beat mark embrace intraoral OK mark heads, NG mark head of embracing the clamp splice, the qualified work piece of leak hunting adopts OK to beat the mark and beats the mark, and the unqualified work piece of leak hunting adopts NG to beat the mark and beats the mark.

More specifically, the front end of a marking rod of the OK marking head is provided with a round point-shaped marking head, the front end of a marking rod of the NG marking head is provided with a linear marking head, the OK marking head marks a round point mark on the workpiece through the round point-shaped marking head to prove that the workpiece is qualified, and the NG marking head marks a line mark on the workpiece through the linear marking head to prove that the workpiece is unqualified.

Specifically, the reset piece adopts semicircular spring leaf, when beating the trigger block and being located the second inner chamber, the reset piece is pressed and is beaten the trigger block and make third hole and first hole disalignment to make the boss of beating trigger block's front end and the sighting rod rear end offset, when beating the trigger block motion to the third inner chamber, under the chamber wall effect of third inner chamber, beat the trigger block and promote the reset piece and warp so that third hole and first hole are coaxial so that beat the core and beat the sighting rod, beat when beating the trigger block after beating and get back to the second inner chamber, will beat the trigger block when resetting the reset piece and press to making third hole and second hole disalignment department, beat the front end of trigger block and support on the boss of sighting rod rear end once more, beat the mark preparation for marking next time.

Specifically, a workpiece to be machined is assembled on a tooling plate, and the tooling plate comprises a bottom plate, a clamping plate assembly and a movable supporting assembly;

the clamping plate assembly comprises a fixed plate and a movable plate which are arranged in parallel, wherein the fixed plate is vertically arranged on the bottom plate through a fixed bracket, and the movable plate is arranged on the bottom plate at the rear end of the fixed plate through a movable bracket; the workpiece is clamped between the fixed plate and the movable plate of the clamping plate assembly;

the movable supporting components comprise sliding rails and supporting blocks, the supporting blocks are slidably mounted on the sliding rails, the two groups of movable supporting components are respectively mounted on the bottom plates on two sides of the clamping plate component through the sliding rails, and the supporting blocks are supported at the bottoms of the workpieces.

The clamping plate assembly further comprises a reset sliding block, a front fixing block, a rear fixing block, a reset sliding block and a spring, wherein the front fixing block and the rear fixing block are respectively positioned at the front side and the rear side of the reset sliding block and fixedly connected with the bottom plate; two ends of the spring are respectively abutted against the rear fixed block and the reset sliding block; the front fixing block is provided with a through hole which is communicated with the front and the back, the front end of the reset sliding block is provided with a convex rod, and the end part of the convex rod is connected with the through hole on the front fixing block in a sliding way; the fixed plate is vertically arranged on a bottom plate at the front end of the reset sliding block through a fixed bracket, and the movable plate is arranged on the reset sliding block through a movable bracket; the marking station is provided with a horizontally telescopic buffering positioning rod controlled by a cylinder, and the buffering positioning rod is matched with a through hole in a front fixed block.

After the tooling plate moves to the marking station, the buffering positioning rod stretches out and is inserted into the through hole in the front fixing block and does not contact with the reset sliding block, so that the tooling plate is positioned, and a workpiece is positioned.

Specifically, a photoelectric switch is further arranged on the marking station and used for detecting whether a workpiece is assembled on the tooling plate or not.

More specifically, the splint subassembly still includes the guide arm, two the guide arm respectively with reset slider clearance fit and both ends are connected with preceding fixed block, after-fixing piece respectively, through the better restriction of guide arm reset slider slip between preceding fixed block, after-fixing piece.

The movable support assembly further comprises a positioning strip and a positioning pin, the positioning strip is arranged on one side of the slide rail in parallel, a plurality of positioning holes are uniformly distributed in the positioning strip, the end part of the lower end of the support block horizontally extends to the upper side of the positioning strip to form a limiting block, a limiting hole matched with the positioning hole is formed in the limiting block, and the positioning pin penetrates through the limiting hole and then is inserted into the positioning hole to limit the support block; in the use process, the positioning pin is inserted into the limiting hole and the positioning hole after the position of the supporting block is determined, so that the position of the supporting block is limited, and the supporting block is prevented from moving on the sliding rail and losing effective support for the workpiece when the tooling plate drives the workpiece to walk in a logistics system.

More specifically, the locating hole is the back taper, and the lower extreme of locating pin has the back taper piece with locating hole shape adaptation, and spacing spring is established to the outside cover of locating pin, and the both ends of spacing spring offset with stopper, back taper piece respectively, and the effect lets the locating pin tip atress back top in the locating hole, can not move the position.

The bottom plate is close to the tip of edge and sets up positioning channel groove, and the frock board drives the work piece and transports to when being close to the station of treating the operation in logistics system, drags the frock board to the station after inserting positioning channel groove through logistics system from the mechanism that drags in area to tentatively fix a position the work piece.

Specifically, an ID reading card is further arranged on the bottom plate, the ID reading card is used for storing the identity information of the workpiece on the tooling plate and the result data of each working station, and the data is bound and transmitted along with the logistics line.

The bottom plate is close to the tip of edge and still sets up the reference column, when needs carry out the vacuum helium leak hunting to the work piece, drags frock board and work piece business turn over through the reference column and is used for carrying on the vacuum chamber of helium leak hunting, can also dock in order to fix the position the frock board in the vacuum chamber with the constant head tank of taking in the vacuum chamber through the reference column simultaneously to with the work piece location, the leak hunting in the vacuum chamber of being convenient for connects and is used for to work piece evacuation, helium charging with the interface connection on the work piece.

Specifically, the tooling plate further comprises an inflation assembly, the inflation assembly comprises an inflation pile and an inflation head, the inflation pile is mounted on the bottom plate, and the inflation head is connected with the inflation pile through an air pipe; the inflatable pile is provided with an inflation inlet which is used for being connected with a leak detection joint in the vacuum box, and the inflation inlet is used for being connected with an interface of a workpiece to be detected. The workpieces of different specifications may be provided with interfaces at different positions, and the leak detection joints in the helium leak detection box do not necessarily correspond to the interfaces on all the workpieces one to one, so that the inflation pile with the fixed position and the inflation head with the flexible position are respectively matched with the leak detection joints in the helium leak detection box and the interfaces on the workpieces, and helium leak detection is performed on the workpieces of different specifications conveniently.

More specifically, an inflation head seat is arranged on the bottom plate, the inflation head is detachably mounted on the inflation head seat, and before helium leak detection is carried out, the inflation head is taken down from the inflation head seat through a manipulator on the logistics system and then mounted on an interface of a workpiece.

More specifically, the trachea of connecting inflation head and inflatable pile is for cup jointing the double tube that forms by outer tube and inner tube, inflatable pile is last to set up two interfaces, and an interface is used for to the work piece evacuation and fill the helium with the inner tube intercommunication, and another is used for bleeding the intermediate layer chamber with the intermediate layer chamber intercommunication of outer tube and inner tube, adopts double tube to connect inflation head and inflatable pile, and the inflation tube is at continuous evacuation and fill the helium in-process, and the helium of inner tube can permeate the intermediate layer intracavity, can not influence the test result like this, if adopt single tube, the helium can directly permeate the vacuum chamber and influence the test result.

The utility model has the advantages that:

the utility model provides a work piece marking mechanism embraces the clamp splice through beating the mark and cliies the work piece top, embraces the intraoral mark of beating of clamp splice clamp through beating the mark and beat the mark at the work piece top, is applicable to the thin slice form work piece top that the size is thin, the area is big, weight is big and beats the mark, is applicable to the work piece simultaneously and transports from changing the commodity circulation.

Drawings

Fig. 1 is a side view of a workpiece marking mechanism provided by the present invention;

FIG. 2 is a partial perspective view of the marking device;

FIGS. 3 and 4 are cross-sectional views of a marking rod;

FIG. 5 is a schematic view of a marking rod housing;

FIG. 6 is a schematic view of a reset plate;

FIG. 7 is a front end view of an OK header;

FIG. 8 is a front end schematic diagram of NG marking head;

FIG. 9 is a perspective view of the tooling plate;

FIG. 10 is a perspective view of the workpiece and tooling plate after assembly;

FIG. 11 is a partial cross-sectional view of the cleat assembly;

the marking device comprises a marking frame 1, a marking holding clamp block 2, a marking head 3, a marking guide rod 4, a linear bearing 5, a front cover 3a, a shell 3b, a first inner cavity 3b1, a second inner cavity 3b2, a third inner cavity 3b3, a rear cover 3c, a marking rod 3d, a marking spring 3e, a spring limiting block 3f, a beating core 3g, a beating trigger block 3h, a resetting piece 3i and a beating spring 3j, wherein the marking frame 3a is provided with a marking frame, the resetting piece 3b is provided with a marking head, the marking guide rod 3b is provided with a shell 3b, the third inner cavity 3b3 is provided with a rear cover; 11 is a workpiece, 12 is a tool plate, 13 is a reset slide block, 14 is a front fixed block, 15 is a rear fixed block, 16 is a fixed plate, 17 is a movable plate, and 20 is a buffer positioning rod.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Examples

As shown in fig. 1 and 2, the embodiment provides a workpiece marking mechanism, which is arranged on an upper material flow line of a material flow system and comprises a marking device;

a marking station is arranged on the feeding assembly line, and the marking device is arranged on one side of the marking station;

the marking device comprises a marking frame 1, a marking holding clamp block 2, a marking guide rod 4 and a marking head 3;

the marking frame 1 is arranged on the side part of the marking station, a transition connecting seat is arranged on the marking frame 1, a cylinder mounting plate is arranged on the transition connecting seat and positioned above the marking station, a marking holding clamping block 2 is slidably arranged on the cylinder mounting plate through a marking cylinder, the cylinder body of the marking cylinder is connected with the cylinder mounting plate, a piston rod vertically penetrates through the cylinder mounting plate downwards and then is connected with the top of the marking holding clamping block 2, and the bottom of the marking holding clamping block 2 is provided with a clamping opening matched with the top of a workpiece to be processed; two vertically arranged linear bearings 5 are arranged on two sides of a marking cylinder on a cylinder mounting plate, two marking guide rods 4 respectively penetrate through the linear bearings 5 and then are connected with the tops of the marking holding clamping blocks 2, and the tops of the two marking guide rods 4 are connected through guide rod connecting blocks;

as shown in fig. 3 to 6, the marking head 3 includes a front cover 3a, a housing 3b, a rear cover 3c, a marking rod 3d, a marking spring 3e, a spring limiting block 3f, a beating core 3g, a beating trigger block 3h, a reset sheet 3i, and a beating spring 3j, the front cover 3a and the rear cover 3c are respectively sleeved at the front end and the rear end of the housing 3b, and a first inner cavity 3b1, a second inner cavity 3b2, and a third inner cavity 3b3, of which the cross-sectional dimensions are sequentially decreased from front to rear, are arranged in the housing 3 b; the hammering spring 3j is arranged in the third inner cavity 3b3, and the rear end of the hammering spring is abutted against the rear cover 3 c; the hammering core 3g is in clearance fit with the second inner cavity 3b2, the front end of the hammering core radially extends outwards to form a convex ring in clearance fit with the first inner cavity 3b1, the rear end of the hammering core is abutted against the hammering spring 3j, an axial first inner hole is formed in the front section of the hammering core 3g, and a second inner hole radially penetrating through the first inner hole is formed in the position, close to the convex ring, of the front end of the hammering core 3 g; the hammering trigger block 3h is in clearance fit with the second inner hole, the length of the hammering trigger block does not exceed the inner diameter of the second inner cavity 3b2, and a third inner hole matched with the first inner hole in size is arranged on the hammering trigger block 3 h; the reset sheet 3i is arranged at an opening at one end of the second inner hole and presses the hammering trigger block 3h until the third inner hole is not coaxial with the first inner hole; the spring limiting block 3f is arranged in the first inner cavity 3b1, and the front end and the rear end of the spring limiting block are respectively abutted against the front cover 3a and the front end of the beating core 3g convex ring; the marking spring 3e is arranged in the inner cavity of the front cover 3a, and the rear end of the marking spring is abutted to the spring limiting block 3 f; beat sighting rod 3d and pass behind the protecgulum 3a in proper order and beat sighting spring 3e, spring reset block, beat sighting rod's middle section set up with beat rand, back end that sighting spring 3e front end offseted with first hole is coaxial, beat sighting rod 3 d's back end axial internal contraction form with beat the boss that triggers 3 h's front end offseted.

In this embodiment, the two marking clamping blocks 2 are respectively slidably mounted on the cylinder mounting plate on the marking frame 1 through two marking cylinders, the marking head 3 includes an OK marking head 3 and an NG marking head 3 which are respectively arranged in the clamping openings of the two marking clamping blocks 2, as shown in fig. 7, the front end of the marking rod of the OK marking head 3 is provided with a dot-shaped marking head, as shown in fig. 8, the front end of the marking rod of the NG marking head 3 is provided with a linear marking head;

the marking device is controlled by a controller;

a workpiece 11 to be machined is assembled on a tooling plate 12, as shown in fig. 9 to 11, the tooling plate 12 comprises a bottom plate, a clamping plate assembly and a movable supporting assembly;

the clamping plate assembly comprises a reset sliding block 13, a front fixed block 14, a rear fixed block 15, a reset sliding block 13, a spring, a fixed plate 16 and a movable plate 17, wherein the front fixed block 14 and the rear fixed block 15 are respectively positioned at the front and the rear of the reset sliding block 13 and are fixedly connected with the bottom plate; two ends of the spring are respectively abutted against the rear fixed block 15 and the reset sliding block 13; a through hole which is through from front to back is formed in the front fixing block 14, a convex rod is arranged at the front end of the reset sliding block 13, and the end part of the convex rod is connected with the through hole in the front fixing block 14 in a sliding mode; the fixed plate 16 is vertically arranged on a tooling plate at the front end of the reset slider 13 through a fixed bracket, the movable plate 17 is arranged on the reset slider 13 through a movable bracket, and the workpiece 11 is clamped between the fixed plate 16 and the movable plate 17 of the clamping plate assembly; the marking station is provided with a horizontally telescopic buffer positioning rod 20 controlled by a cylinder, and the buffer positioning rod 20 is matched with a through hole on the front fixed block 14;

the movable supporting components comprise sliding rails and supporting blocks, the supporting blocks can be slidably mounted on the sliding rails, and the two groups of movable supporting components are respectively mounted on the bottom plates on the two sides of the clamping plate component through the sliding rails; the supporting block is supported at the bottom of the workpiece 11;

and a photoelectric switch is also arranged on the marking station and used for checking whether the workpiece 11 is assembled on the tooling plate 12 or not.

In this embodiment, the workpiece 11 to be processed is a thin plate-shaped shell product, after the vacuum helium leak detection is performed on the workpiece 11, an upper material flow line of a workpiece 11 flow system assembled on a tooling plate moves to a marking station, and a buffer positioning rod 20 is inserted into a through hole of a front fixed block 14 and does not contact with a reset slider, so that the tooling plate 12 is positioned; the marking cylinder drives the marking holding clamp block 2 to descend to enable the clamp opening to clamp the top of the workpiece so as to conduct center guide on the workpiece, and the marking head 3 is ensured to correspond to the center of the top of the workpiece 11 while the workpiece 11 is positioned;

in the downward movement process of the marking head 3 along with the marking cylinder, the marking rod 3d contacts the top of the workpiece 11 and then moves to the rear cover 3c under the extrusion of the workpiece 11, the marking rod pushes the hammering trigger block 3h while moving, because the hammering trigger block 3h is positioned in the second inner cavity 3b2 at the moment, the third inner hole is not concentric with the first inner hole, the marking rod 3d simultaneously pushes the hammering trigger block 3h and the hammering core 3g to move together to extrude the hammering trigger block 3h into the third inner cavity 3b3, and the hammering trigger block 3h simultaneously slides along the second inner hole in the radial direction to enable the third inner hole and the first inner hole to be concentric, at the moment, the reset piece 3i is pressed to be deformed by the hammering trigger block 3h, and the marking spring 3e and the hammering spring 3j are pressed to be contracted;

when the hammering trigger block 3h enters the third inner cavity 3b3 to enable the third inner hole to be concentric with the first inner hole, the compressed hammering spring 3j rebounds and pushes the hammering core 3g back to the second inner cavity 3b2 from the third inner cavity 3b3, the hammering rod 3d is struck in the back pushing process of the hammering core 3g, and the front end of the hammering rod 3d beats out a mark on the top of the workpiece 11;

after marking is finished, the cylinder moves upwards in a return stroke, the marking rod 3d returns to an initial state under the action of the marking spring 3e and the hammering spring 3j, the hammering trigger block 3h returns to the second inner cavity 3b2, the reset sheet 3i resets and presses the hammering trigger block 3h to a position where a third inner hole and the second inner hole are not coaxial, the front end of the hammering trigger block 3h abuts against a boss at the rear end of the marking rod 3d again, and preparation is made for next marking;

if the workpiece is qualified for leak detection, the OK marking head marks a circular point mark on the workpiece through the circular point marking head; if the workpiece is unqualified in leakage detection, the NG marking head marks a line mark on the workpiece through the linear marking head; after marking is finished, the marking device returns to the initial safety position, so far, marking of the workpiece is finished, and the tooling plate drives the workpiece to move to the next station along the assembly line of the logistics system so as to perform corresponding operation.

The above embodiments of the present invention are merely examples for illustrating the present invention and are not intended to limit the embodiments of the present invention. Variations and modifications in other variations will occur to those skilled in the art upon reading the foregoing description. Not all embodiments are exhaustive. All obvious changes or variations which are introduced by the technical solution of the present invention are still within the scope of the present invention.

Claims (10)

1. A workpiece marking mechanism is arranged on an upper material flow line of a logistics system and is characterized in that a marking station is arranged on the upper material flow line, and a marking device is arranged on one side of the marking station;

the marking device comprises a marking frame, a marking holding clamp block and a marking head; the marking frame is arranged on the side part of the marking station, the marking holding clamp block is slidably arranged on the side part of the marking frame above the marking station through a marking cylinder, the bottom of the marking holding clamp block is provided with a clamp opening matched with the top of a workpiece to be processed, and the marking head is arranged in the clamp opening of the marking holding clamp block;

the marking device is controlled by a controller.

2. The workpiece marking mechanism according to claim 1, wherein a transition connecting seat is mounted on the marking frame, a cylinder mounting plate is mounted on the transition connecting seat above the marking station, a cylinder body of the marking cylinder is connected with the cylinder mounting plate, and a piston rod vertically penetrates through the cylinder mounting plate downwards and then is connected with the marking holding clamp block.

3. The workpiece marking mechanism as claimed in claim 1 or 2, wherein the marking device further comprises marking guide rods, two perpendicularly arranged linear bearings are mounted on two sides of the marking cylinder on the cylinder mounting plate, and the two marking guide rods respectively penetrate through the linear bearings and then are connected with the top of the marking holding clamp block.

4. The workpiece marking mechanism according to claim 1, wherein the marking head comprises a front cover, a housing, a rear cover, a marking rod, a marking spring, a spring limiting block, a beating core, a beating trigger block, a reset sheet and a beating spring, the front cover and the rear cover are respectively sleeved at the front end and the rear end of the housing, and a first inner cavity, a second inner cavity and a third inner cavity are arranged in the housing, the cross-sectional dimensions of the first inner cavity, the second inner cavity and the third inner cavity are sequentially decreased from front to back; the hammering spring is arranged in the third inner cavity, and the rear end of the hammering spring is abutted against the rear cover; the hammering core is in clearance fit with the second inner cavity, the front end of the hammering core extends radially outwards to form a convex ring in clearance fit with the first inner cavity, the rear end of the hammering core is abutted against the hammering spring, the front section of the hammering core is provided with an axial first inner hole, and the front end of the hammering core, close to the convex ring, is provided with a second inner hole which radially penetrates through the first inner hole; the hammering trigger block is in clearance fit with the second inner hole, the length of the hammering trigger block does not exceed the inner diameter of the second inner cavity, and a third inner hole matched with the first inner hole in size is formed in the hammering trigger block; the reset sheet is arranged at an opening at one end of the second inner hole and presses the hammering trigger block to enable the third inner hole and the first inner hole to be not coaxial; the spring limiting block is arranged in the first inner cavity, and the front end and the rear end of the spring limiting block are respectively abutted against the front end of the front cover and the front end of the beating core convex ring; the marking spring is arranged in the inner cavity of the front cover, and the rear end of the marking spring is abutted to the spring limiting block; the marking rod penetrates through the marking spring and the spring reset block after the front cover is sequentially penetrated, the middle section of the marking rod is arranged with the clamping ring and the rear section which are abutted to the front end of the marking spring, and the first inner hole is coaxial, and the rear end of the marking rod axially inwardly contracts to form a boss which is abutted to the front end of the beating trigger block.

5. The workpiece marking mechanism as claimed in claim 4, wherein the two marking holding blocks are slidably mounted on the side of the marking frame above the marking station by two marking cylinders, and the marking head comprises an OK marking head and an NG marking head respectively disposed in the two marking holding block clamping openings.

6. The workpiece marking mechanism as claimed in claim 5, wherein the dot-shaped marking head is arranged at the front end of the marking rod of the OK marking head, and the linear marking head is arranged at the front end of the marking rod of the NG marking head.

7. The workpiece marking mechanism as claimed in claim 4, wherein the reset plate is a semi-circular spring plate.

8. The workpiece marking mechanism as claimed in claim 1, wherein the workpiece to be machined is mounted on a tooling plate, the tooling plate including a base plate, a clamping plate assembly, a moveable support assembly;

the clamping plate assembly comprises a fixed plate and a movable plate which are arranged in parallel, wherein the fixed plate is vertically arranged on the bottom plate through a fixed bracket, and the movable plate is arranged on the bottom plate at the rear end of the fixed plate through a movable bracket; the workpiece is clamped between the fixed plate and the movable plate of the clamping plate assembly;

the movable supporting components comprise sliding rails and supporting blocks, the supporting blocks are slidably mounted on the sliding rails, the two groups of movable supporting components are respectively mounted on the bottom plates on two sides of the clamping plate component through the sliding rails, and the supporting blocks are supported at the bottoms of the workpieces.

9. The workpiece marking mechanism as claimed in claim 8, wherein the clamping plate assembly further comprises a reset slider, a front fixed block, a rear fixed block, a reset slider and a spring, wherein the front fixed block and the rear fixed block are respectively positioned at the front and rear sides of the reset slider and fixedly connected with the bottom plate; two ends of the spring are respectively abutted against the rear fixed block and the reset sliding block; the front fixing block is provided with a through hole which is communicated with the front and the back, the front end of the reset sliding block is provided with a convex rod, and the end part of the convex rod is connected with the through hole on the front fixing block in a sliding way; the fixed plate is vertically arranged on a bottom plate at the front end of the reset sliding block through a fixed bracket, and the movable plate is arranged on the reset sliding block through a movable bracket; beat the flexible buffering locating lever of mark station setting level through cylinder control, the through-hole adaptation on buffering locating lever and the preceding fixed block.

10. The workpiece marking mechanism as recited in claim 1, wherein a photoelectric switch is further mounted to the marking station.

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