阅读说明：本技术 一种铝合金压铸件自动传输精确打标装置及其打标方法 (Automatic transmission accurate marking device and method for aluminum alloy die castings ) 是由 黄明宇 周倩 张宇 王俊有 魏言标 薛少兵 郑磊 于 2020-08-10 设计创作，主要内容包括：本发明提供了一种铝合金压铸件自动传输精确打标装置及其打标方法,包括打标机以及传动装置,还包括夹具板,待打标零件设置在所述夹具板上,所述夹具板放置在所述传动装置上,所述传动装置通过所述夹具板带动所述待打标零件输送至所述打标机处打标；电磁传感器,设置在所述传动装置上,所述电磁传感器用于检测所述待打标零件是否进入打印区域；以及零件限位机构,设置在所述传动装置上,在打标的过程中用于限定所述待打标零件的位置。本发明的一种铝合金压铸件自动传输精确打标装置及其打标方法,在打标的过程中对所述夹具板上的待打标零件从前后左右四个方向进行定位,保证了打标的稳定性,同时所述打标机可以上下左右调整,确保了打标的精确度。(The invention provides an automatic transmission accurate marking device and a marking method for an aluminum alloy die casting, which comprise a marking machine, a transmission device and a clamp plate, wherein a part to be marked is arranged on the clamp plate, the clamp plate is arranged on the transmission device, and the transmission device drives the part to be marked to be conveyed to the marking machine to be marked through the clamp plate; the electromagnetic sensor is arranged on the transmission device and used for detecting whether the part to be marked enters a printing area or not; and the part limiting mechanism is arranged on the transmission device and used for limiting the position of the part to be marked in the marking process. According to the automatic transmission accurate marking device and the marking method for the aluminum alloy die casting, parts to be marked on the clamp plate are positioned from the front direction, the rear direction, the left direction and the right direction in the marking process, so that the marking stability is guaranteed, and meanwhile, the marking machine can be adjusted up, down, left and right, so that the marking accuracy is guaranteed.)

1. The utility model provides an accurate mark device of beating of aluminum alloy die casting automatic conveying, includes marking machine and transmission, its characterized in that still includes:

the part to be marked is arranged on the clamp plate, the clamp plate is placed on the transmission device, and the transmission device drives the part to be marked to be conveyed to the marking machine to be marked through the clamp plate;

the electromagnetic sensor is arranged on the transmission device and used for detecting whether the part to be marked enters a printing area or not; and

and the part limiting mechanism is arranged on the transmission device and used for limiting the position of the part to be marked in the marking process.

2. The automatic conveying and precise marking device for the aluminum alloy die castings according to the claim 1, wherein the part to be marked is arranged on the clamp plate through two pins and a supporting pin, and the pins comprise a cylindrical pin and a chamfered pin.

3. The automatic conveying and precise marking device for the aluminum alloy die castings according to claim 1, wherein the transmission device is a roller type conveying assembly, a plurality of rollers are arranged on two parallel roller frames, one end of each roller is connected with one roller frame, and the rollers are parallel to each other.

4. The automatic conveying and precise marking device for the aluminum alloy die castings according to claim 3, wherein the part limiting mechanism comprises a lifting stop and a longitudinal pressing device, and the lifting stop is located between the two roller frames; the longitudinal pressing device is arranged on the roller frame and comprises a push rod, and a push rod extending hole is formed in the roller frame close to one side of the push rod and in the position corresponding to the push rod.

5. The automatic conveying and precise marking device for the aluminum alloy die castings according to the claim 4,

the lifting type stop block comprises a first fixing frame and two stop blocks, the first fixing frame is arranged on the two roller frames, the height of the upper surface of the first fixing frame is not higher than the conveying surface formed by the rollers, the stop blocks are arranged on the first fixing frame in a lifting manner, and one side surfaces, close to the clamp plate, of the two stop blocks are in the same plane and parallel to one side surface, close to the clamp plate, of the two stop blocks;

the longitudinal pressing device further comprises an air cylinder, and the air cylinder can drive the push rod to move back and forth along the axial direction parallel to the roller, so that the clamp plate is pressed tightly.

6. The automatic conveying and precise marking device for the aluminum alloy die castings according to claim 5, wherein an electromagnet is arranged below the stop block, and the marking device controls the stop block to ascend and descend through the electromagnet.

7. The automatic conveying and precise marking device for the aluminum alloy die castings according to claim 3, wherein the part limiting mechanism further comprises a forward direction pressing mechanism, the forward direction pressing mechanism comprises a telescopic rod, a limiting connecting rod, a force transmission connecting rod, a push rod and a fixed support, the fixed support is arranged below the roller type conveying assembly, the roller is not arranged above the forward direction pressing mechanism, one end of the telescopic rod is connected with a telescopic rod cylinder, the telescopic rod cylinder is arranged on the fixed support, the other end of the telescopic rod is connected with one end of the limiting connecting rod and one end of the force transmission connecting rod through a pin shaft, the other end of the limiting connecting rod is rotatably arranged on the fixed support through a base, one end of the push rod is rotatably arranged on the base, and the other end of the push rod is provided with a tightening pressure head, the other end of the force transmission connecting rod is rotatably connected with the push rod, a pushing portion is arranged on the force transmission connecting rod, an arc-shaped limiting groove is formed in the base, the tightening pressure head is movably connected with the push rod, and the tightening pressure head can be manually arranged.

8. The automatic conveying and precise marking device for the aluminum alloy die castings according to claim 1, wherein the transmission device, the electromagnetic sensor and the part limiting mechanism are electrically connected with a control system.

9. The marking method of the automatic conveying precise marking device for the aluminum alloy die castings based on any one of the above claims is characterized by comprising the following steps of:

s10, arranging the part to be marked on the clamp plate;

s20, placing the clamp plate carrying the part to be marked on the transmission device;

s30, when the electromagnetic sensor senses that the clamp plate is conveyed to the marking machine, the part limiting mechanism limits the clamp plate;

after the limiting is finished in S40, the marking machine is started to mark the part to be marked, and the marking process is finished; and

and S50, after marking, resetting the part limiting mechanism, and continuously conveying the marked part to the next process by the transmission device.

Technical Field

The invention relates to the technical field of marking devices, in particular to an automatic transmission accurate marking device for aluminum alloy die castings and a marking method thereof.

Background

The final step is to laser print two-dimensional code on the product to record the product information. However, the marking plane area provided by the product is very small (2 x 2cm), and the two-dimensional code area is close to 2 x 2cm, so that the marking difficulty is increased, and the marking system in the prior art is lack in two-dimensional code position control, so that the technical problems of marking position deviation, inaccurate focusing, insufficient definition and the like are easily caused. Because the clamp plate has a certain clearance with the roller frames at two sides of the conveying system, otherwise, the clamp plate cannot be fed; when the positioning is in place, the positioning must be accurate.

Disclosure of Invention

In order to solve the problems, the invention provides an automatic transmission accurate marking device for an aluminum alloy die casting and a marking method thereof

In order to achieve the above purpose, the invention adopts a technical scheme that:

the utility model provides an accurate mark device of beating of aluminum alloy die casting automatic conveying, includes marking machine and transmission, still includes: the part to be marked is arranged on the clamp plate, the clamp plate is placed on the transmission device, and the transmission device drives the part to be marked to be conveyed to the marking machine to be marked through the clamp plate; the electromagnetic sensor is arranged on the transmission device and used for detecting whether the part to be marked enters a printing area or not; and the part limiting mechanism is arranged on the transmission device and used for limiting the position of the part to be marked in the marking process.

Further, the part to be marked is arranged on the clamp plate through two pins and a supporting pin, and each pin comprises a cylindrical pin and a chamfered edge pin.

Furthermore, the transmission device is a roller type conveying assembly, the rollers are arranged on two roller frames which are parallel to each other, one end of each roller is connected with one roller frame, and the rollers are parallel to each other.

Furthermore, the part limiting mechanism comprises a lifting stop block and a longitudinal pressing device, and the lifting stop block is positioned between the two roller racks; the longitudinal pressing device is arranged on the roller frame and comprises a push rod, and a push rod extending hole is formed in the roller frame close to one side of the push rod and in the position corresponding to the push rod.

Furthermore, the lifting type stop block comprises a first fixing frame and two stop blocks, the first fixing frame is arranged on the two roller frames, the height of the upper surface of the first fixing frame is not higher than the conveying surface formed by the rollers, the stop blocks are arranged on the first fixing frame in a lifting manner, and one side surfaces, close to the clamp plate, of the two stop blocks are in the same plane and parallel to one side surface, close to the clamp plate, of the two stop blocks; the longitudinal pressing device further comprises an air cylinder, and the air cylinder can drive the push rod to move back and forth along the axial direction parallel to the roller, so that the clamp plate is pressed tightly.

Furthermore, an electromagnet is arranged below the stop block, and the marking device controls the stop block to lift through the electromagnet.

Furthermore, the part limiting mechanism also comprises an advancing direction pressing mechanism, the advancing direction pressing mechanism comprises a telescopic rod, a limiting connecting rod, a force transmission connecting rod, a push rod and a fixed support, the fixed support is arranged below the roller type conveying assembly, the roller is not arranged above the advancing direction pressing mechanism, one end of the telescopic rod is connected with a telescopic rod cylinder, the telescopic rod cylinder is arranged on the fixed support, the other end of the telescopic rod is connected with one end of the limiting connecting rod and one end of the force transmission connecting rod through a pin shaft, the other end of the limiting connecting rod is rotatably arranged on the fixed support through a base, one end of the push rod is rotatably arranged on the base, the other end of the push rod is provided with a tightening pressure head, and the other end of the force transmission connecting rod is rotatably connected with the push rod, the power transmission device is characterized in that a pushing portion is arranged on the power transmission connecting rod, an arc-shaped limiting groove is formed in the base, the tightening pressure head is movably connected with the push rod, and the position of the tightening pressure head can be manually set.

Further, the transmission device, the electromagnetic sensor and the part limiting mechanism are electrically connected with a control system.

The invention also provides a marking method of the automatic transmission precise marking device for the aluminum alloy die castings, which is based on any claim and comprises the following steps: s10, arranging the part to be marked on the clamp plate; s20, placing the clamp plate carrying the part to be marked on the transmission device; s30, when the electromagnetic sensor senses that the clamp plate is conveyed to the marking machine, the part limiting mechanism limits the clamp plate; after the limiting is finished in S40, the marking machine is started to mark the part to be marked, and the marking process is finished; and S50, after marking, the part limiting mechanism resets, and the transmission device continues to convey the marked part to the next process.

Compared with the prior art, the technical scheme of the invention has the following advantages:

according to the automatic transmission accurate marking device and the marking method for the aluminum alloy die casting, parts to be marked on the clamp plate are positioned from the front direction, the rear direction, the left direction and the right direction in the marking process, so that the marking stability is guaranteed, meanwhile, the marking machine can be adjusted up and down, left and right, the marking accuracy is guaranteed, and the technical problems of deviation of marking positions, inaccurate focusing, insufficient definition and the like are solved.

Drawings

The technical solution and the advantages of the present invention will be apparent from the following detailed description of the embodiments of the present invention with reference to the accompanying drawings.

FIG. 1 is a top view of an automatic conveying precise marking device for aluminum alloy die castings according to an embodiment of the invention;

FIG. 2 is a left view of an automatic conveying precise marking device for aluminum alloy die castings according to an embodiment of the invention;

FIG. 3 is a block diagram of a part limiting mechanism according to an embodiment of the present invention;

FIG. 4 is a diagram of a lift stop according to an embodiment of the present invention;

FIG. 5 is a view showing a structure of the forward direction pressing mechanism at a middle position of the pushing jig plate according to an embodiment of the present invention;

fig. 6 is a structural view of the advancing direction pressing mechanism in a state where no force is applied according to an embodiment of the present invention. Reference numbers in the figures:

1 clamp plate, 11 pins, 12 supporting nails, 2 parts to be marked, 3 transmission devices, 31 rollers, 32 roller frames, 4 marking machines, 41 left and right adjusting devices, 42 up and down adjusting devices, 43 marking heads, 5 electromagnetic sensors, 6 lifting type check blocks, 61 fixing plates, 62 check blocks, 63 electromagnets, 64 pressure sensors, 7 longitudinal pressing devices, 71 push rods, 72 cylinders, 81 telescopic rods, 82 limiting connecting rods, 83 force transmission connecting rods, 831 pushing parts, 84 push rods, 85 fixing supports, 86 tightening pressure heads, 87 bases and 871 accommodating grooves.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

This embodiment provides an accurate mark device of beating of aluminum alloy die casting automatic conveying, as shown in fig. 1, including anchor clamps board 1, transmission 3, marking machine 4, electromagnetic sensor 5 and part stop gear, wait to beat mark part 2 and set up on the anchor clamps board 1, anchor clamps board 1 is placed transmission 3 is last, transmission 3 passes through anchor clamps board 1 drives wait to beat mark part 2 and carry extremely marking machine 4 department beats the mark, marking machine 4 is located one side of transmission 3. The electromagnetic sensor 5 is arranged on the transmission device 3, and the electromagnetic sensor 5 is used for detecting whether the part 2 to be marked enters a printing area. The part limiting mechanism is arranged on the transmission device 3 and used for limiting the position of the part to be marked 2 in the marking process. The transmission device 3, the electromagnetic sensor 5 and the part limiting mechanism are electrically connected with a control system.

As shown in fig. 2, the marking head 43 can be set by the left and right adjusting device 41 and the up and down adjusting device 42 of the marking machine 4, so as to ensure the marking accuracy of the marking head 43, the up and down adjusting device 42 can adjust the up and down position of the marking head 43, the left and right adjusting device 41 can adjust the front and back positions of the marking head 43 and the transmission device 3, and after the marking head 43 and the transmission device 3 are placed and the marking machine 4 is adjusted once, the front and back positions of the marking head 43 and the transmission device 3 do not need to be adjusted.

Treat mark part 2 and set up through two pins 11 and a support nail 12 on the anchor clamps board 1, pin 11 includes a cylindric lock and a edging round pin. The fixing modes are mutually matched, so that the positioning of 6 degrees of freedom of the part to be marked 2 is realized, namely, 2 rotation degrees and 1 movement degree of freedom are limited by a plane, 2 movement degrees of freedom are limited by the cylindrical pin, one rotation degree of freedom is limited by the matching of the edge cutting pin and the cylindrical pin, and the edge cutting pin is adopted to prevent over-positioning.

The conveying device 3 is a roller type conveying assembly, a plurality of rollers 31 are arranged on two parallel roller frames 32, one end of each roller 31 is connected with one roller frame 32, and the rollers 31 are parallel to each other. The width of the clamp plate 1 along the axis of the roller 31 is smaller than the distance between the roller frames 32, so that the clamp plate 1 can be carried smoothly with the part 2 to be marked moving on the transmission device 3.

The part limiting mechanism comprises a lifting stop block 6 and a longitudinal pressing device 7, and the lifting stop block 6 is positioned between the two roller frames 32. As shown in fig. 3 to 4, the lifting type stopper 6 includes a fixing plate 61 and two stoppers 62, the fixing plate 61 is disposed on two of the roller frames 32, the height of the upper surface of the fixing plate 61 is not higher than the conveying surface formed by the rollers 31, the stoppers 62 are arranged on the fixing plate 61 in a lifting manner, and one side surface of the two stoppers 62 close to the fixture plate 1 is in the same plane and parallel to one side surface close to the fixture plate 1. An electromagnet 63 is arranged below the stop block 62, and the marking device controls the stop block 62 to lift through the electromagnet 63.

The longitudinal pressing device 7 is arranged on the roller frame 32, the longitudinal pressing device 7 comprises a push rod 71, and a push rod 71 extending hole is arranged at a position, corresponding to the push rod 71, of the roller frame 32 close to one side of the push rod 71. The longitudinal pressing device 7 further comprises an air cylinder 72, and the air cylinder 72 can drive the push rod 71 to move back and forth along the axial direction of the roller 31, so that the clamp plate 1 is pressed on the roller frame 32 opposite to the push rod 71. When the clamp plate 1 stops running continuously under the block of the stop block 62, the rollers 31 stop rotating, and in order to ensure the unbiased property of the parking position of the clamp plate 1, the longitudinal pressing device 7 can be arranged at one of the roller frames 31, and the push rod 71 can press and align the clamp plate 1 towards the inner side under the pushing of the air cylinder 72 and the deflection of the parking position.

As shown in fig. 5 to 6, the part limiting mechanism further includes a forward direction pressing mechanism, the forward direction pressing mechanism includes an expansion link 81, a limiting link 82, a force transmission link 83, a push rod 84 and a fixing support 85, the fixing support 85 is disposed below the roller type conveying assembly, the roller 31 is not disposed above the forward direction pressing mechanism, one end of the expansion link 81 is connected to an expansion link cylinder, the expansion link cylinder is disposed on the fixing support 85, the other end of the expansion link 81 is connected to one end of the limiting link 82 and one end of the force transmission link 83 through a pin shaft, the other end of the limiting link 82 is rotatably disposed on the fixing support 85 through a base 87, one end of the push rod 85 is rotatably disposed on the base 87, and the other end of the push rod 85 is provided with a tightening pressure head 86, the other end of the force transmission connecting rod 83 is rotatably connected with the push rod 8, a pushing part 831 is arranged on the force transmission connecting rod 83, and an arc-shaped limiting groove 871 is arranged on the base 87. The tightening pressure head 86 is movably connected with the push rod 84, and the position of the tightening pressure head 86 can be manually set. The telescopic rod 81 can also be controlled by a hydraulic cylinder, and the invention prefers a cylinder.

The tightening process of the advancing direction pressing mechanism is as follows:

the cylinder promotes telescopic link 81 extension, telescopic link 81 is kept away from the one end drive of cylinder limit connecting rod 82 and biography power connecting rod 83 is rotatory upwards, promote portion 831 with push rod 84 butt, promote portion 831 promotes push rod 84 is around keeping away from it is rotatory to tighten the one end of pressure head 86, push rod 84 drives tighten pressure head 86 to anchor clamps board 1 removes, will anchor clamps board 1 is tightened, spacing groove 871 is injectd the position of push rod 84 prevents tighten pressure head 86 and crosses tightening, avoids tightening the damage to anchor clamps board 1.

The invention also provides a marking method based on the automatic transmission accurate marking device for the aluminum alloy die castings, which comprises the following steps: s10, arranging the part 2 to be marked on the clamp plate 1; s20, placing the clamp plate 1 carrying the part 2 to be marked on the transmission device 3; s30, when the electromagnetic sensor 5 senses that the clamp plate 1 is conveyed to the marking machine 4, the part limiting mechanism limits the clamp plate 1; after the limiting is finished in the S40 mode, the marking machine 4 is started to mark the part 2 to be marked, and the marking process is finished; and S50, after marking, the part limiting mechanism resets, and the transmission device 3 continues to convey the marked part to the next process.

And step S10, placing the processed part 2 to be marked on the clamp plate 1 by the mechanical arm.

Step S20 the control system controls the roller 31 to rotate uniformly, and the roller 31 drives the clamp plate 1 to move towards the marking machine 4.

In the motion process of the clamp plate 1 in the step S30, when the electromagnetic sensor 5 senses that the clamp plate 1 is conveyed to the marking machine 4, the control system controls the electromagnet 63 to be electrified, the stopper 62 gradually rises, when the clamp plate 1 touches the stopper 62, the pressure sensor 64 is started, the control system controls the air cylinder 72 to push the push rod 71 to abut against the clamp plate 1, until the clamp plate 1 is clamped between the roller frame 32 and the push rod 71, and the side thrust reaches a preset side thrust value. The rotary ram 81 rotates from the bottom of the roller 31 to a side surface of the clamp plate 1 opposite to the stopper 62, and assists the roller 31 to continuously push the clamp plate 1 to move towards the stopper 62, so as to tighten the clamp plate 1. Thereby positioning the four sides of the jig plate 1. The control system controls the roller 31 to stop rotating.

Step S40, the control system adjusts the position of the marking head 43 to mark the part 2 to be marked. The marking process is completed.

After marking in step S50, the control system controls the air cylinder 72 to reset, the rotary ram 81 to rotate reversely to reset, the electromagnet 63 to reset, the roller 31 to continue rotating, and the roller type conveying assembly conveys the fixture plate 1 to the next process.

As shown in table 1, the total mass of the fixture plate 1, the pin 11, and the support pin 12 is 767 × 7.8e, which is the physical property of the workpiece material according to an embodiment of the present invention^-3+252*2.7e^-3＝6.7kg

f＝μFN＝0.2mg＝0.2*6.7*9.8＝13.132N(g＝9.8N/kg)

Assuming equilibrium, F-13.132N

The driving force is ensured to be greater than 13.132N to push.

TABLE 1 physical Properties of the workpiece materials

Type (B)	Material	Volume/(cm)3)	Density/(kg/cm)3)
				Clamping plate and pin	Plain carbon steel	767	7.8e-3
Details of	Aluminium alloy	252	2.7e-3

The cross-sectional area of the piston is known to be 7cm²，

Determination of cylinder air pressure:

obtaining P-13.132/(7-10) from P-F/S^-4)＝6566N/m²＝18760Pa

So the air pressure adjustment is to ensure that more than 18760Pa can be pushed.

Calculation of the original side thrust:

under the condition, the condition that the side thrust is vertical to the driving force direction is met, and the original side thrust is

Wherein k is a safety factor, generally 2.5-3, where k is 2.5, F is a forward thrust, L is a distance between a forward thrust position of the clamp plate and the roller frame 32 corresponding to a lateral thrust direction, and L is 0.099, F is a distance between the forward thrust position of the clamp plate and the roller frame 32 corresponding to the lateral thrust direction, and₁taking the coefficient of friction of the clamping mechanism material as f₁H is 1.5, and H is 0.197, which is the length of the jig plate in the side-pushing direction.

Presetting a side thrust value F_J’：

F_J’＝k F_J＝2.5*8.239＝20.60N

In summary, the following steps: the overall movement is as follows, the mechanical arm puts the part 2 to be marked on the clamp plate 1 with a cylindrical pin, a chamfered pin and a support pin 12. The transmission device 3 conveys the clamp plate 1 to move forwards, one electromagnetic sensor 5 is placed at a position close to the marking position, the stop block 62 is lifted under the action of the electromagnet 63 when the clamp plate 1 is close to the electromagnetic sensor 5, the clamp plate 1 continues to move forwards until the clamp plate 1 touches the stop block 62, the pressure sensor 64 on the stop block 62 transmits signals to the lateral air cylinder 72, the air cylinder 72 pushes the push rod to push the clamp plate 1 laterally, and the lateral clamping force at the moment is 20.60N. After the lateral pushing, the forward direction pressing mechanism tightly presses the clamp plate 1 in the forward direction, and the forward direction pushing force at the moment is larger than 13.132N. Therefore, the pressure required by the selected air cylinder is calculated to be 18760 Pa. The lateral clamping cylinder and the forward pushing cylinder can be selected to be of the same specification. Since the pressure of 18760Pa is not so large, a general air supply system can be satisfied. Therefore, the design of the mechanism has certain rationality.

The above description is only an exemplary embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes that are transformed by the content of the present specification and the attached drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.