CN101293263A - Multi-station automatic stretching processing method and punch device using same - Google Patents

Abstract

The invention discloses a processing method of multi-station automatic stretching, which comprises the following processing processes: a first step of feeding; and secondly, multi-station stamping. In order to realize the multi-station automatic stretching processing method, the adopted punch device comprises a multi-station punch, a stretching die, a material ejecting system, a material returning system, a detection system, a conveying belt, a transmission system, a cooling system and a lubricating system, and because of the arrangement of the mechanical arm, the full-automatic processing process can be adopted to replace most of the existing manual operation processes, so that the production efficiency of the whole product is improved, the safety of personnel operation can be improved, the processing cost of the product is reduced, and the quality of the processed product is improved. Because the detection systems are arranged among the working procedures and on the mechanical arm, the safe and reliable operation of the equipment and the mould in the full-automatic production process is ensured. And because the manipulator and the pneumatic feeder are arranged, the processing process flow can be reduced, and the invention has simple processing.

Description

Processing method of multi-station automatic stretching and punching device using the processing method

【Technical field】

The invention relates to a processing method for multi-station automatic stretching and a punch device using the processing method.

【Background technique】

In the existing traditional process of processing stretched products: first, according to the requirements of the stretched product, determine the stretching process for processing the stretched product and design the mold for manufacturing the stretched product. Each process requires a set of molds, from shallow Into the depth, and installed on the ordinary punching machine in turn, stamping is completed one by one, each process in the above-mentioned processing process is completed by manual operation. For example: a stretched product needs to be stretched eight times before it can be formed, and then the trimming of the stretched product is added, that is, the process of processing the entire product is nine processes. In the process of stretching the product, nine sets of processing molds must be designed , and each set of molds can be completed in different punching machines to complete each process. In the process of processing the above-mentioned stretched product, because there are many processes and molds for processing the stretched product, the processing is complicated. Due to the occupation of equipment and many operators, the processing cost is high and the processing accuracy is low. Because most of the above processes require manual operation, the production efficiency is low, the safety is poor, and the product quality is poor.

【Content of invention】

In order to solve the technical problems in the above-mentioned prior art, the present invention provides a multi-station automatic stretching machine that not only has simple processing, low processing cost and high processing precision, but also improves production efficiency, safety and product quality. A processing method and a punch device using the processing method.

In order to achieve the above object, the present invention provides a processing method for multi-station automatic stretching, and its specific processing process is:

First, the coil material is sent to the first station of the mold through the pneumatic feeder for blanking or blanking stretching, and then the cylindrical cam in the transmission system drives the manipulator to move left and right; at the same time, the manipulator moves on the other disc cam Driven by the drive to do forward and backward movement, the manipulator grips the round material or semi-finished product and is driven by the transmission system to feed forward and backward;

The second step, multi-station stamping and forming: the manipulator transports the round material or semi-finished product to the second station of the mold, the stretching punch pulls the round material or semi-finished product into the mold for stretching, and the press lifts up by the top The spring or cylinder in the material system pushes the product out of the drawing die, the press continues to rise, the material return sleeve of the material return system withdraws the semi-finished product from the punch, and the semi-finished product is clamped by the manipulator and sent to the next station In the mold, until it is stamped into a finished product, then the robot will place the finished product on the conveyor belt and send out the product automatically.

In order to realize the processing method of the above-mentioned multi-station automatic stretching, a kind of punch device is adopted, which includes a multi-station punch, a stretching die placed on the workbench of the multi-station punch, and a top mounted on the lower part of the stretching die. The material system is installed on the conveyor belt on the right side of the multi-station punch workbench, the pneumatic feeder and material rack installed on the front side of the multi-station punch press workbench, the transmission system installed on the left side of the multi-station punch press, and installed on the The cooling system on the side of the transmission system and the lubrication system connected with the multi-station punching machine are characterized in that a manipulator is installed between the drawing die and the stripping sleeve, and a detection system is provided between each process and on the manipulator. A material return system is provided at the rear of the drawing die and on the drawing punch; the manipulator includes a manipulator clamping mechanism; and a structure for finely cutting narrow and wide sides is also set on the multi-station punching machine.

According to the main technical features above, the manipulator clamping mechanism includes a cam, a main shaft installed inside the cam, a push rod connected to the cam, a cam bearing used to connect the cam and the push rod, and a shaft mounted on the push rod. The upper bracket, the lower bracket installed on the push rod and located between the upper bracket and the cam, the connecting rod installed on the push rod and located on the upper part of the upper bracket, the upper conversion block movably connected to the connecting rod, and the lower bracket installed inside the conversion block Turn the shaft.

According to the main technical features above, the detection system includes a main control box, a blanking process sensor, a main wire connected to the blanking process sensor, a detection elastic probe connected in parallel to the main wire for detecting products in each process, The manipulator feeding detection microswitch connected in parallel on the main line and located on one side of the detection elastic probe, the manipulator release detection microswitch connected in parallel on the main line and located on the other side of the detection elastic probe; the main control The box includes the stretch forming status indicator light set at the central position of the main control box, the punch slider position indicator light set on the upper part of the stretch forming status indicator light, and the front and rear status of the manipulator set on the upper side of the stretch forming status indicator light. Indicator light, the blanking process indicator light set on one side of the stretch forming status indicator light, the left and right state indicator lights of the manipulator set on the other side of the stretch forming state indicator light, the indicator light set at the lower part of the stretch forming state indicator light A detection selection switch, a shutdown signal switch arranged at the bottom of the detection selection switch, a power switch button arranged at one side of the shutdown signal switch, and a reset button arranged at the other side of the shutdown signal switch.

According to the above main technical features, the material return system includes a material return frame, a support plate fixed on the material return frame, a transmission shaft and a support shaft installed on the support plate, and a material return cam fixed on the transmission shaft. And the sprocket, the stripping arm that is movably connected to the support shaft, the stripping sleeve that is movably connected to the front end of the stripping arm, the stripping height adjustment screw that is installed on the stripping arm and contacts the stripping cam, and is fixed on the support The material return cover limit plate on the board is installed on the extension spring between the rear end of the material return arm and the material return frame.

According to the main technical features above, the transmission system includes a punch motor, a flywheel connected to the punch motor, a first speed change gear meshing with the flywheel, a second speed change gear meshing with the first speed change gear, and a second speed change gear. The power output shaft with gears that cooperate with each other, the intermediate sprocket connected with the sprocket on the power output shaft, the main sprocket connected with the intermediate sprocket, the main transmission box sprocket and the return system sprocket connected with the main sprocket, all The above-mentioned main transmission box includes a camshaft that fixes the sprocket of the transmission box and rotates with it, a cylindrical cam installed on the camshaft, a slider and a support rod installed on the upper part of the cylindrical cam to drive the manipulator to move left and right, and installed on the camshaft. The disc cam and the manipulator clamping mechanism above it, the eccentric wheel installed on the camshaft and the lubricating oil pump driven by it and fixed at the bottom of the transmission box.

According to the above main technical features, the manipulator includes a first base, an upper base installed on the upper part of the first base, a third slider installed in the guide groove of the upper base and sliding back and forth, and a third slider installed on the upper base for pressing to the The upper cover of the three sliders, the fixed tube installed inside the upper base and the first base, the first rotating shaft installed inside the fixed tube, the copper block installed in the square hole of the third slider, and fixed on the third slider A clamping block at one end, and a fork fixed on the first rotating shaft by its own thread and inserted into the copper block.

According to the above main technical features, the manipulator includes a fixed rod, a bearing seat installed on the upper part of the fixed rod, a second slider installed inside the fixed rod, a locking screw installed at one end of the second slider, and a lock The adjusting screw that tightens the screw cooperates with each other, the spring installed at the other end inside the second slider, the fork installed between the bearing seat, the fixed rod, and the second slider and perpendicular to the three, installed on the locking screw The copper block between the spring and the fork inserted in the inner hole, the oil bearing installed inside the bearing seat, the second rotating shaft installed inside the oil bearing and the clamp block fixed at one end of the second slider. The manipulator includes a fixed rod, a bearing seat installed on the upper part of the fixed rod, a second slider installed inside the fixed rod, a locking screw installed at one end of the second slider, and an adjustment mechanism that cooperates with the locking screw. The screw, the spring installed at the other end of the second slider, the fork installed between the bearing seat, the fixed rod, and the second slider and perpendicular to the three, installed between the locking screw and the spring and pulled out A copper block inserted into the inner hole, an oil-impregnated bearing installed inside the bearing seat, a second rotating shaft installed inside the oil-impregnated bearing, and a clamp block fixed at one end of the second sliding block.

According to the above main technical features, the structure of the precision-cut narrow side and wide side includes a main spring, an inner spring installed inside the main spring, an inner spring top block installed on the upper part of the inner spring, and a main spring top installed on the upper part of the main spring. Block, the inner top block of the slider installed on the inner spring top block, the second base installed on the punch table and used to press the main spring top block, the guide rail fixing plate installed on the second base, installed on the guide rail and fixed The first guide rail and the second guide rail inside the board, the slider pressing plate installed on the guide rail fixing plate and used to press the slider, the slider installed in the first guide rail and the second base, and the puller installed on the top surface of the upper part of the slider plate.

According to the above-mentioned main technical features, the structure of the fine-cut narrow side and wide side also includes a die handle, an upper punch fixing plate fixed on the lower end surface of the die handle, and a trimming edge installed on the lower top of the upper punch fixing plate. The upper punch, the height-fixing block installed on the lower top surface of the trimming upper punch, and the set screw installed on the splint for fixing the handle of the die.

Beneficial technical effects of the present invention: because a manipulator is set between the drawing die and the stripping sleeve, a fully automated process can be used to replace most of the existing manual operations, thereby improving the production efficiency of the entire product , At the same time, it can also improve the safety of personnel operation, reduce the processing cost of products, and improve the quality of processed products. Because there is a detection system between each process and on the manipulator, it ensures the safe and reliable operation of equipment and molds in the fully automated production process. Moreover, because the manipulator and the pneumatic feeder are provided, the technological process of processing can be simplified, and the feeding and stretching can be automatically completed between each process. The present invention has the advantages of simple processing.

In addition, the multi-station punch device of the present invention has the following advantages: 1. The multi-station punch has high performance and high precision matching the mechanical system; 2. Because the mold is made of high-performance tungsten steel material, the It has high precision, high hardness, long life, good heat resistance, and stable product quality; 3. Due to the use of precise guide sleeve mechanism, it can ensure stable product quality and safe and reliable work of the mold; 4. It has high efficiency and high Quality; 5. Pneumatic jacking system and cam material return system are adopted to ensure accurate and reliable material return and continuous automatic production of the production line; 6. In the automatic feeding system, a braking system is added to avoid the inertia of moving parts on the transmission The influence of the mechanism ensures the accuracy of the transmission.

In order to have a further understanding of the purpose, structural features and functions of the invention, the detailed description is as follows in conjunction with the accompanying drawings:

【Description of drawings】

Fig. 1 is a flow chart of a processing method of multi-station automatic stretching among the present invention;

Fig. 2 is the front schematic diagram of punch device among the present invention;

Fig. 3 is a schematic side view of a punch device in the present invention;

Fig. 4 is the schematic structural diagram of detection system principle in the present invention;

Fig. 5 is the front view of the material return system in the present invention;

Fig. 6 is a top view of the material return system in the present invention;

Fig. 7 is a side view of the material return system in the present invention;

Fig. 8 is a schematic diagram of the transmission principle in the present invention;

Fig. 9 is the front schematic view of the part structure of the lower mold of fine cutting narrow edge among the present invention;

Fig. 10 is a schematic side view in Fig. 9;

Figure 11 is a schematic diagram of direction A in Figure 10;

Fig. 12 is the front schematic view of the part structure of the upper mold of fine cutting narrow edge among the present invention;

Fig. 13 is a schematic side view in Fig. 12;

Fig. 14 is the front sectional view of manipulator among the present invention;

Fig. 15 is the top view of manipulator among the present invention;

Fig. 16 is the side view of manipulator among the present invention;

Fig. 17 is a schematic diagram of the clamping mechanism of the manipulator in the present invention;

Fig. 18 is a schematic cross-sectional view of the clamping mechanism of the manipulator in the present invention;

Fig. 19 is a schematic cross-sectional view of another manipulator in the present invention;

Fig. 20 is a side front view of another manipulator in the present invention;

Fig. 21 is a top view of another manipulator in the present invention;

Fig. 22 is a side view of another manipulator in the present invention.

【Detailed ways】

Referring to Fig. 1 to Fig. 22, the following describes a multi-station automatic stretching processing method provided by the present invention in conjunction with the first embodiment. The specific processing process is as follows:

First, the coil material is sent to the first station of the mold through the pneumatic feeder 10 for blanking or blanking stretching, and then the cylindrical cam 45 in the transmission system 3 drives the manipulator 9 to move left and right; at the same time, the manipulator 9 Driven by another disc cam 58, it moves forward and backward, and the manipulator 9 clamps the round material or semi-finished product and is driven by the transmission system 3 to feed forward and backward;

The second step, multi-station stamping and forming: the manipulator 9 transports the round material or semi-finished product to the second station of the mold, and the stretching punch pulls the round material or semi-finished product into the mold for stretching and forming. When the press rises, it relies on The spring or cylinder in the ejector system 5 pushes the product out of the drawing die, the press continues to rise, and the ejector sleeve 32 of the ejector system 4 ejects the semi-finished product from the punch, and the semi-finished product is held by the manipulator 9 and sent into the Go to the mold of the next station until it is stamped into a finished product. Then, the manipulator 9 places the finished product on the conveyor belt 11 and automatically sends out the product.

Compared with the above-mentioned stretching processing method and the existing traditional stretching processing method, the stretching processing method of the present invention has the advantages of simple processing, safety and reliability, and is conducive to improving production efficiency. At the same time, it can also improve the precision of processed products and improve the quality of processed products, which is suitable for mass automatic production.

Please refer to Fig. 2 and Fig. 3, in order to realize the above-mentioned multi-station automatic stretching processing method, a kind of punch device is adopted, which includes a multi-station punch 1, a stretching die 2, a transmission system 3, a material return System 4, jacking system 5, detection system 6, lubrication system 7, cooling system 8, manipulator 9, pneumatic feeder 10 and conveyor belt 11. The multi-station drawing die 2 is provided with a structure for finely cutting the narrow side and the wide side.

Inside the multi-station punch 1, the drawing die 2 is installed on the upper part of the worktable of the multi-station punch 1, and the above-mentioned ejector system 5 is installed on the lower part of the drawing die 2, and is installed on the right side of the workbench of the multi-station punch The conveyor belt 11, the pneumatic feeder 10 and the material rack installed on the front side of the workbench on the multi-station punch press 1, the transmission system 3 is arranged on the left side of the multi-station punch press 1, and the cooling system 8 Installed on the right side of the transmission system 3, the lubricating system 7 is connected to the drawing die 2, and a manipulator 9 is provided between the die of the drawing die 2 and the stripping sleeve, between each process and the manipulator 9 A detection system 6 is provided on the top, and a material return system 4 is provided on the rear of the drawing die 2 and on the drawing punch.

Referring to Fig. 4, the detection system 6 includes a main control box 12, a blanking process sensor 13, a main wire 14 connected to the blanking process sensor 13, and is connected in parallel to the main wire 14 for detecting each The detection elastic probe 15 of the process product, the manipulator feeding detection micro switch 16 connected in parallel on the main wire 14 and located on one side of the detection elastic probe 15, and connected in parallel on the main wire 14 and located on the other side of the detection elastic probe 15 The manipulator let go of the detection micro switch 17; the main control box 12 includes a stretch forming status indicator light 18 arranged at the central position of the main control box 12, a punch slide block arranged at the top of the stretch forming status indicator light 18 Position indicator light 19, the state indicator light 20 before and after the manipulator 9 that is arranged on the upper side of the stretch forming state indicator light 18, the blanking process indicator light 21 that is arranged on one side of the stretch forming state indicator light 18, is arranged on the stretch forming state indicator light 18. Manipulator 9 left and right status indicator lights 22 on the other side of status indicator light 18, the detection selection switch 23 that is arranged on stretching forming status indicator light 18 bottoms, the shutdown signal switch 24 that is arranged on detection selection switch 23 bottoms, is arranged on shutdown signal The power switch button 25 on one side of the switch 24 and the reset button 26 arranged on the other side of the stop signal button 24 .

Please refer to Fig. 5 to Fig. 7, the described material return system 4 includes a material return frame seat 27, a support plate 28 fixed on the material return frame seat 27, a transmission shaft 29 and a support shaft installed on the support plate 28 291, being connected to the return material cam 301 and the sprocket wheel 30 on the drive shaft, the material return arm 31 that is movably connected to the supporting shaft 291, the material return cover 32 that is movably connected to the front end of the return material arm, is installed on the return material arm 31 and The stripping height adjustment screw 33 in contact with the stripping cam 301, the stripping sleeve limit plate 35 fixed on the support plate 28, and the extension spring 34 installed at the rear end of the stripping arm.

When the multi-station punch press 1 goes down from the top dead center, the ejection cam 301 lifts the cam adjustment screw 33 of the follower to push the ejection arm 31 to rotate clockwise, thereby driving the ejection sleeve 32 to go down; When the bottom dead point moves upward, the ejection cam 301 starts to move from the high point to the low point. Under the action of the spring 34, the ejection arm 31 rotates counterclockwise, thereby driving the ejection sleeve 32 to rise. After reaching a certain position, the ejection Cover 32 stops moving, and punch continues to rise, and material return cover 32 moves back product from punch. The cam adjustment screw 33 can adjust the position of the material return sooner or later, and the distance between the material return cover 32 and the mold plane can also be adjusted by the cam adjustment screw 33 on the material return cover 32 limit plate 35 .

Please refer to shown in Fig. 8, described transmission system comprises punch motor 36, the flywheel 37 that is connected with punch motor 36, the first speed change gear 38 that meshes with flywheel 37, the second speed change gear 38 that meshes with each other. Speed change gear 39, the power take-off shaft 40 that cooperates with the second speed change gear 39, the middle sprocket 41 that links to each other with sprocket on power take-off shaft 40, the main sprocket 42 that links to each other with middle sprocket 41 and main sprocket 42 Connected main transmission box sprocket 421, including fixed transmission box sprocket 421 and the camshaft 59 that rotates with it in the described main transmission box, the cylindrical cam 45 installed on the camshaft 59 is installed on the cylindrical cam 45 top to drive The slide block 451 and support rod that manipulator 9 moves left and right, the disc cam 58 that is installed on the camshaft 59 and the manipulator 9 clamping mechanisms above it, the eccentric wheel 591 that is installed on the camshaft 59 and its drive work and are fixed on Lubricating oil pump 592 at the bottom of the transmission case.

When the torque produced by the press motor 36 is passed to the power output shaft 40 through the flywheel 37, the first and second speed change gears 38, 39, and is transmitted to the main sprocket 42 through the intermediate sprocket 41, where the power is transferred to the main sprocket 42. Be divided into two routes, all the way to the material return system sprocket 30, and the other to the main drive box sprocket 421. In the main transmission box, the main sprocket 42 transmits power to the main transmission box sprocket 421 , thereby driving the cylindrical cam 45 and the disc cam 58 to rotate. Cylindrical cam 45 drives manipulator 9 to move left and right by mechanical slide block 451 during the rotation process, completes feeding and retreating action. And the disc cam 58 drives the transmission shaft 57 of the manipulator 9 to rotate in the process of rotation, and completes clamping and loosening actions. During the material return system, the main sprocket 42 transmits power to the material return system sprocket 30, which drives the cylindrical cam 44 on the transmission shaft to rotate, thereby driving the material return sleeve 32 to move up and down, and completes the positioning and material return actions.

Please refer to Fig. 9 to Fig. 13, the structure of the lower mold part of the fine-cut narrow side includes a main spring 100, an inner spring 101 installed inside the main spring 100, and an inner spring top block 102 installed on the top of the inner spring 101 , install the main spring top block 103 on the top of the main spring 100, the top block 104 installed on the slide block above the inner spring top block 102, the second base 105 that is installed on the punch workbench and is used to press the main spring top block 103, Install the guide rail fixing plate 106 above the second base 105, the first guide rail 107 and the second guide rail 202 installed inside the guide rail fixing plate 106, be installed on the guide rail fixing plate 106 and be used to press to the slide block pressing plate 108 of the slider 109, The slider 109 installed in the first and second guide rails 107 , 202 and the second base 105 , and the carriage 201 installed on the upper top surface of the slider 109 .

The structure of the upper mold part of the fine-cut narrow side includes a die handle 203, an upper punch fixing plate 205 fixed to the lower end surface of the die handle 203, and an upper punch for edge trimming installed on the lower top of the upper punch fixing plate 205. 206, the limit needle fixed plate 210 that is installed on the lower end of the upper punch fixed plate 205, the limit needle fixed plate 210 is equipped with a limit needle 209, installed on the fixed height block 207 of the upper punch 206 lower top surface of the trimming, installed on On the splint 208 and used for fixing the set screw 204 of the mold handle 203.

The height-fixing block 207 is mainly used to determine the height of trimmed products. The limit pin 209 is mainly used to limit the gap between the convex and concave dies and press the sliding block to move downward. The first and second guide rails 107 and 202 are mainly used to determine the swing direction and distance of the first slider 109 . The main spring 100 and the main spring top block 103 are mainly used for supporting the first slider 109 . The inner spring 101 , the inner spring top block 102 and the slider inner top block 104 mainly push the casing out from the first slider 109 .

The working process of the structure of the fine-cut narrow side is as follows: the shell that has been stretched in the previous process is sent to the trimming die carriage 201 by the manipulator 9, and the multi-station punch 1 moves downward from the top dead center, cutting The upper mold part of the side mold also moves downwards. When moving to a certain height, the height-fixing block 207 first enters the housing cavity, and the housing is pressed into the hole of the first slide block 109. The multi-station punch press 1 continues to move downward, and the limit needle contacts the first slider 109, and presses the first slider 109 to move downward along the curve of the second guide rail 202 while swinging left and right to complete the trimming action; When the multi-station punch press 1 moves from the bottom dead center to the top dead center, the first slider 109 moves upward under the force of the main spring 100 , and the casing withdraws from the first slider 109 under the force of the inner spring 101 , complete the trimming, and the trimming waste is stuck in the groove of the trimming carriage 201 and discharged sequentially. The upper die part of the trimming die includes a splint 208 , a die handle 203 , an upper punch fixing plate 205 , an upper punch 206 for trimming, a limit pin and a height-fixing block 207 .

The structure and principle of the fine-cut broadside are basically the same as the structure and principle of the fine-cut narrow side, and its difference: there is no height-fixing block 207 in the structure of the described fine-cut broadside. The upper punch 206 presses the trimmed narrow side of the housing and moves down, and the height is the same as when the trimmed narrow side is cut.

14 to 18, the manipulator 9 includes a fixed rod 48, a bearing seat 49 installed on the upper part of the fixed rod 48, a second slider 50 installed inside the fixed rod 48, and a second slider installed on the second slider. The locking screw 52 inside the 50, the adjusting screw 51 cooperating with the locking screw 52, the spring 53 installed at the other end inside the second slider 50, installed in the square hole of the second slider 50 and at both ends The copper block 55 in contact with the spring 53 and the adjustment screw 51, the fork 54 installed on the second rotating shaft 57 and inserted into the copper block 55, the oil-impregnated bearing 56 installed inside the bearing seat 49, and the oil-impregnated bearing 56 installed inside The second rotating shaft 57 and the clamping block 58 fixed on one end of the second sliding block 50 .

The clamping block 58 described in this embodiment is fixed on the second sliding block 50 by hexagon socket head cap screws, the second sliding block 50 slides in the square hole on the fixing rod 48, and the copper block 55 is on the second sliding block 50 In the square hole, one end is supported by spring 53, and the other end is adjusted by adjusting screw 51. Oil bearing 56 is placed in bearing seat 49, and bearing seat 49 is fixed on the fixed rod 48 by hexagon socket head cap screw, and shift fork 54 is fixed on the second rotating shaft 57 by its own screw thread, and the other end is then inserted in the copper block 55.

Please refer to Fig. 17 and shown in Fig. 20, described manipulator 9 also comprises manipulator clamping mechanism, and described manipulator clamping mechanism comprises disc cam 58, is installed in the camshaft 59 inside disc cam 58, and cam 58 Interconnected push rod 60, cam bearing 61 for interconnecting cam 58 and push rod 60, upper bracket 62 installed on the push rod 60, mounted on the push rod 60 and positioned between the upper bracket 62 and the cam 58 The lower bracket 621 between them, the connecting rod 63 mounted on the push rod 60 and positioned on the top of the upper bracket 62 , the conversion block 64 movably connected to the connecting rod 63 and the rotating shaft 57 installed inside the conversion block 64 .

When the punch press is running, the power is transmitted from the output shaft to the camshaft 59 of the transmission box through the intermediate sprocket 41, driving the camshaft 59 to rotate, and the cam 58 is connected to the camshaft 59 through teeth, so that it rotates with the camshaft 59 , and drive the push rod 60 to move up and down in the positioning holes of the upper bracket 62 and the lower bracket 621 through the cam bearing 61, the chain rod 63 is connected together with the push rod 60 through a pin and moves up and down with the push rod 60, and then moves up and down with the rotating block 64 converts the up and down motion of the chain bar 63 into the back and forth rotation of the rotating shaft 57, thereby realizing the clamping and loosening motion of the manipulator.

The power of the punching machine is transmitted to the sprocket 421 of the main transmission box through chain transmission, thereby driving the disc cam 58 for clamping material and the cylindrical cam 45 for feeding to rotate. When the punch press is at the top dead center, the manipulator is in the clamping state, the punch press moves downward from the top dead center, and the disc cam 58 for clamping material and the cylindrical cam 44 for feeding also rotate accordingly. When the die punch enters the product of each process And during accurate positioning, the disc cam 58 of clamping material jacks up the driven rod and drives the rotating shaft 57 in the manipulator 9 to rotate counterclockwise through the hinge on the bar, and the shift fork 54 on the rotating shaft 57 moves the middle of the manipulator 9. The second slide block 50 moves back and sends the product away. The punch continues to move downwards, and when a certain position is reached, the cylindrical cam 45 of feeding drives the driven rod, and drags the fixed rod 48 of the manipulator 9 to drive the whole manipulator to move to the left to the previous process for clamping. When the punch press moves upwards from the bottom dead center to a certain position, the product is already higher than the mold plane, and the disc cam 58 for clamping the material drives the shift fork 54 to rotate clockwise, and the second slider 50 in the manipulator 9 moves forward to clamp tight product. The punch press continues to move upwards, and after the unloading system removes all the products of each process from the punch, the cylindrical cam 45 of feeding drives the fixed rod 48 of the manipulator 9 to move to the right, and the product is sent to the next process. Thus, the cycle realizes the automatic material transfer and stretching of the manipulator.

The coil material enters the first process of the mold through the pneumatic feeder 10. After one stroke of the punching machine, it is automatically transferred to the next process by the manipulator 9. During the stretching process, the product in the die is moved by the cylinder and the ejector block in the ejector system 5 The die is ejected, and then as the punch goes up, the ejector sleeve 32 in the ejection system 4 removes the product from the punch, and after each sequence of stretching and edge trimming is completed in turn, the manipulator 9 puts the product on the conveyor belt 11 on output.

To sum up, since the manipulator 9 is set between the drawing die and the stripping sleeve 32, it can adopt a fully automated processing process to replace most of the existing manual operations, thereby improving the production efficiency of the entire product , At the same time, it can also improve the safety of personnel operation, reduce the processing cost of products, and improve the quality of processed products. Because there is a detection system between each process and on the manipulator, it ensures the safe and reliable operation of equipment and molds in the fully automated production process. And because the manipulator 9 and the pneumatic feeder 10 are provided, the technological process of the processing can be simplified, and the feeding and stretching can be automatically completed between each process. The present invention has the advantages of simple processing.

In addition, the multi-station punch device of the present invention has the following advantages: 1. The multi-station punch has high performance and high precision matching the mechanical system; 2. Because the mold is made of high-performance tungsten steel material, the It has high precision, high hardness, long life, good heat resistance, and stable product quality; 3. Due to the use of precise guide sleeve mechanism, it can ensure stable product quality and safe and reliable work of the mold; 4. It has high efficiency and high Quality; 5. Pneumatic ejection system and cam return system are used to ensure accurate and reliable return of materials, ensuring continuous automatic production of the production line; 6. In the automatic feeding system, a braking system is added to avoid the inertia of moving parts The impact on the transmission mechanism ensures the accuracy of the transmission.

Please refer to Fig. 20 to Fig. 22, the manipulator described in the second embodiment of the present invention is different from the manipulator described in the first embodiment: the manipulator 9 includes a first base 70, an installation The upper seat 72 on the top of the first base 70, the third slide block 76 that is installed in the guide groove of the upper seat 72 and slides forward and backward, the upper cover 71 that is installed on the upper seat 72 for pressing the third slide block 76, and installed on The upper seat 72 and the fixed tube 73 inside the first base 70, the first rotating shaft 74 installed inside the fixed tube 73, the copper block 75 installed in the square hole of the third slider 76, and fixed on one end of the third slider 76 The clamp block 77 and the fork 78 fixed on the first rotating shaft 74 and inserted into the copper block 75 by its own thread. However, the mechanical clamping mechanism drives the first rotating shaft 74 to rotate back and forth to realize the tightening and loosening.

The manipulator 9 is installed on the punch device, which can also achieve the technical effect described in the first implementation.

Claims (10)

1. A processing method for multi-station automatic stretching, the specific processing process is: First, the coil material is sent to the first station of the mold through the pneumatic feeder for blanking or blanking stretching, and then the cylindrical cam in the transmission system drives the manipulator to move left and right; at the same time, the manipulator moves on the other disc cam Driven by the drive to do forward and backward movement, the manipulator grips the round material or semi-finished product and is driven by the transmission system to feed forward and backward; The second step, multi-station stamping and forming: the manipulator transports the round material or semi-finished product to the second station of the mold, the stretching punch pulls the round material or semi-finished product into the mold for stretching, and the press lifts up by the top The spring or cylinder in the material system pushes the product out of the drawing die, the press continues to rise, the material return sleeve of the material return system withdraws the semi-finished product from the punch, and the semi-finished product is clamped by the manipulator and sent to the next station In the mold, until it is stamped into a finished product, then the robot will place the finished product on the conveyor belt and send out the product automatically. 2. In order to realize the above-mentioned processing method of multi-station automatic stretching, a kind of punch device is adopted, which includes a multi-station punch, a stretching die placed on the workbench of the multi-station punch, and a stretching die installed on the lower part of the stretching die. The jacking system is installed on the conveyor belt on the right side of the multi-station punch workbench, the pneumatic feeder and material rack installed on the front side of the multi-station punch press workbench, the transmission system installed on the left side of the multi-station punch press, The cooling system installed on the side of the transmission system and the lubrication system connected to the multi-station punching machine are characterized in that a manipulator is installed between the drawing die and the stripping sleeve, and detection is provided between each process and on the manipulator. The system is equipped with a material return system at the rear of the drawing die and on the drawing punch; the manipulator includes a manipulator clamping mechanism; and a structure for finely cutting narrow and wide sides is also set on the multi-station punch. 3. The punch device according to claim 2, characterized in that: the gripping mechanism of the manipulator includes a cam, a main shaft installed inside the cam, a push rod connected to the cam, and a push rod for connecting the cam and the push rod The cam bearing, the upper bracket installed on the push rod, the lower bracket installed on the push rod and located between the upper bracket and the cam, the connecting rod installed on the push rod and located on the upper part of the upper bracket, and movably connected to the connecting rod The upper conversion block and the rotating shaft installed inside the conversion block. 4. The punch device according to claim 2, characterized in that: the detection system includes a main control box, a blanking process sensor, a main wire connected to the blanking process sensor, and a wire connected to the main wire in parallel. The detection elastic probe used to detect products in each process, the manipulator feeding detection micro switch connected in parallel to the main line and located on one side of the detection elastic probe, and the manipulator connected in parallel to the main line and located on the other side of the detection elastic probe. Detect the micro switch; the main control box includes a stretch forming status indicator light arranged at the central position of the main control box, a punch slider position indicator light arranged on the upper part of the stretch forming status indicator light, a The front and rear status indicators of the manipulator on the upper side of the forming status indicator, the blanking process indicator on one side of the stretching status indicator, the left and right status indicators of the manipulator on the other side of the stretching status indicator, The detection selection switch arranged at the lower part of the stretch forming status indicator light, the shutdown signal switch arranged at the lower part of the detection selection switch, the power switch button arranged at one side of the shutdown signal switch, and the reset button arranged at the other side of the shutdown signal switch. 5. The punch device according to claim 2, characterized in that: the material return system includes a material return frame, a support plate fixed on the material return frame, a transmission shaft and a support shaft installed on the support plate , the ejection cam and sprocket fixed on the transmission shaft, the ejection arm movably connected to the support shaft, the ejection sleeve movably connected to the front end of the ejection arm, installed on the ejection arm and in contact with the ejection cam The stripping height adjustment screw, the stripping sleeve limit plate fixed on the support plate, and the tension spring installed between the rear end of the stripping arm and the stripping frame. 6. The punch device according to claim 2, characterized in that: the transmission system includes a punch motor, a flywheel connected to the punch motor, a first speed change gear meshing with the flywheel, and a first speed change gear meshing with each other The second transmission gear, the power output shaft cooperating with the second transmission gear, the intermediate sprocket connected with the upper sprocket of the power output shaft, the main sprocket connected with the intermediate sprocket and the main transmission box connected with the main sprocket The sprocket and the sprocket of the material return system. The main transmission box includes a camshaft that fixes the sprocket of the transmission box and rotates with it. The cylindrical cam installed on the camshaft is installed on the upper part of the cylindrical cam to drive the manipulator. block and support rod, the disc cam installed on the camshaft and the manipulator clamping mechanism above it, the eccentric wheel installed on the camshaft and the lubricating oil pump driven by it and fixed at the bottom of the transmission box. 7. The punch device according to claim 2, characterized in that: the manipulator includes a first base, an upper seat installed on the upper part of the first base, and a third slider installed in the guide groove of the upper seat and sliding forward and backward , the upper cover installed on the upper base for pressing to the third slider, the fixed tube installed inside the upper base and the first base, the first rotating shaft installed inside the fixed tube, and installed in the square hole of the third slider The copper block, the clamp block fixed at one end of the third slider, and the fork fixed on the first rotating shaft by its own thread and inserted into the copper block. 8. The punch device according to claim 2, characterized in that: the manipulator includes a fixed rod, a bearing seat installed on the upper part of the fixed rod, a second slider installed inside the fixed rod, a second slider installed on the second slider The locking screw at one end of the interior, the adjusting screw cooperating with the locking screw, the spring installed at the other end inside the second slider, and the three of them installed between the bearing seat, the fixed rod, and the second slider The vertical fork, the copper block installed between the locking screw and the spring and the fork inserted into the inner hole, the oil bearing installed inside the bearing seat, the second rotating shaft installed inside the oil bearing and fixed on the second Clamp block at one end of the slider. 9. The punch device according to claim 2, characterized in that: the part structure of the lower mold for precision cutting the narrow side and wide side includes a main spring, an inner spring installed inside the main spring, and an inner spring installed on the upper part of the inner spring. Inner spring top block, the main spring top block installed on the top of the main spring, the slider inner top block installed on the inner spring top block, the second base installed on the punch workbench and used to press the main spring top block, the second 2. The guide rail fixing plate on the base, the first guide rail and the second guide rail installed inside the guide rail fixing plate, the slider pressing plate installed on the guide rail fixing plate and used to press the slider, and the first guide rail and the second guide rail installed in the second base The slider, the carriage installed on the top surface of the upper part of the slider. 10. The punch device according to claim 2, characterized in that: the part structure of the upper die for precision cutting the narrow side and the wide side further includes a die handle, an upper punch fixing plate fixed to the lower end surface of the die handle, The trimming upper punch installed on the lower top of the upper punch fixing plate, the height-fixing block installed on the lower top surface of the trimming upper punch, and the set screw for fixing the die handle installed on the clamping plate.

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