Die casting sprue removing device and method

Abstract

The device comprises an equipment body and a rotating mechanism arranged on the upper surface of the equipment body, the rotating mechanism comprises a rotary table and a plurality of carrying discs used for containing the die castings, and the carrying discs are arranged on the rotary table in a surrounding mode at equal intervals; a feeding mechanism, a cutting mechanism and a discharging mechanism are arranged around the rotary table, and the rotary table drives each loading disc to sequentially pass through the feeding mechanism, the cutting mechanism and the discharging mechanism; the cutting-off mechanism comprises an upper cutting-off assembly and a lower cutting-off assembly which are arranged on the upper side and the lower side of the carrying disc correspondingly, the upper cutting-off assembly and the lower cutting-off assembly comprise a first driving module and a second driving module correspondingly and further comprise an upper mold and a lower mold which are matched with the shape of the die casting correspondingly, and cutting-off blades are arranged at the positions, corresponding to pouring gates of the die casting, of the upper mold and the lower mold correspondingly. The device is high in automation degree, the pouring gate is cut off completely, meanwhile, the surface quality of a die casting can be guaranteed, the equipment efficiency is improved, and the labor cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of product de-gating, and in particular to a device and method for de-gating a die casting. Background Art

[0002] The gate of die casting plays a key role in the die casting process. However, after the casting is formed, the existence of the gate does not have a positive effect on the performance and use of the casting. Instead, it may have an adverse effect on the dimensional accuracy, surface quality and assembly of the casting. Therefore, the gate needs to be removed. In addition, removing the gate is also to facilitate subsequent processing and assembly work, improve production efficiency and product quality.

[0003] The removal methods of die casting gates can be mainly divided into two categories: cold removal and hot removal. These two methods have their own characteristics and are suitable for different production scenarios. The cold removal method, including hammer breaking method, mechanical cutting method and mechanical breaking method, mainly uses force to deform the connection between the die casting and the gate, thereby achieving the purpose of separating the gate from the casting. This method is suitable for some situations where the surface quality of the casting is not high or the gate structure is relatively simple. The hammer breaking method is simple to operate, but it may cause certain damage to the casting; the mechanical cutting method is more accurate and can maintain the integrity of the casting surface. The hot removal method uses the high temperature generated by different heat sources to locally oxidize, burn or melt the metal at the cutting site, and at the same time take out the molten metal to remove the gate. This method is suitable for situations where the gate structure is complex and the surface quality of the casting is high. Hot removal methods include oxyacetylene flame cutting, arc cutting and conductive cutting. Among them, oxyacetylene flame cutting melts the metal by the high temperature generated by combustion; arc cutting uses the high temperature generated by the arc to cut the metal; conductive cutting uses the heat generated by the current passing through the metal to melt the metal. When choosing a gate removal method, it is necessary to decide based on the specific production needs and the characteristics of the casting. At the same time, it is also necessary to pay attention to the safety of the operation and the protection of the casting quality.

[0004] Therefore, it is very important to design a de-gating device that has a high degree of automation and can completely remove the gate while ensuring operational safety and protecting the quality of die castings. Summary of the invention

[0005] In view of the problem in the prior art that the gate may have adverse effects on the surface dimensional accuracy, surface quality and assemblability of the die-casting, and in order to improve the degree of automation of the die-casting gate removal work, and ensure the operational safety and the quality of the die-casting while completely removing the gate, the present invention proposes a die-casting gate removal device and method for solving the above problems.

[0006] According to the first aspect of the present application, a die-casting de-gating device is proposed, comprising an equipment main body and a rotating mechanism arranged on the upper surface of the equipment main body, the rotating mechanism comprising a turntable and a plurality of loading trays for placing die-castings, the loading trays being equidistantly arranged around the turntable; a feeding mechanism, a cutting mechanism and a discharging mechanism are arranged around the turntable, the turntable drives each loading tray to pass through the feeding mechanism, the cutting mechanism and the discharging mechanism in sequence; the cutting mechanism comprises an upper cutting assembly and a lower cutting assembly respectively arranged on the upper and lower sides of the loading tray, the upper cutting assembly and the lower cutting assembly respectively comprise a first driving module and a second driving module, and further respectively comprise an upper mold and a lower mold adapted to the shape of the die-casting, the upper mold and the lower mold are provided with cutting blades at the gate position corresponding to the die-casting; the first driving module and the second driving module respectively drive the upper mold and the lower mold to move in opposite directions and cut off the gate.

[0007] By adopting the above technical scheme, the feeding mechanism first places the die-casting with the gate on the loading plate, and the turntable drives the loading plate to move to the position of the cutting mechanism. The first driving module and the second driving module respectively control the upper mold and the lower mold to clamp to the middle, and cut off the redundant gates on the die-casting. After the cutting is completed, the turntable continues to drive the loading plate to move to the position of the discharging mechanism, and the discharging mechanism then clamps the cut die-casting and places it in the qualified / unqualified area, so that the three steps of feeding, cutting and discharging can be automated, and at the same time, the complete removal of the gate can be ensured to protect the product quality of the die-casting.

[0008] Preferably, the cutting mechanism also includes a cutting bracket, which includes an upper fixed plate and a lower fixed plate, the lower fixed plate is installed on the upper surface of the equipment body, and the four corresponding top corners of the upper fixed plate and the lower fixed plate are connected by vertical support columns to form a cutting space; the first camera and the second camera are also respectively provided at the positions of the front and rear loading trays of the cutting mechanism on the upper fixed plate.

[0009] By adopting the above technical solution, the frame structure of the cutting bracket forms a cutting space for the upper cutting component and the lower cutting component to work. When the turntable drives the loading plate to move to the center position of the cutting space, the upper cutting component and the lower cutting component cooperate to cut off the gate of the die-casting. The first camera and the second camera are respectively used to monitor the status of the die-casting located at the previous and next stations of the cutting mechanism, so as to realize the monitoring of the die-casting before and after cutting.

[0010] Further preferably, the first driving module and the second driving module respectively include a first cutting cylinder and a second cutting cylinder, and the first cutting cylinder and the second cutting cylinder are respectively fixed on the upper surface of the upper fixed plate and the lower surface of the lower fixed plate, and the output ends of the first cutting cylinder and the second cutting cylinder respectively pass through the upper fixed plate and the lower fixed plate, and are respectively connected to the backs of the upper mold and the lower mold.

[0011] By adopting the above technical solution, the first cutting cylinder and the second cutting cylinder control the movement of the upper mold and the lower mold respectively, which can not only provide stable power for the cutting of the gate, but also enable the upper mold and the lower mold to move synchronously or move one after another, which can be adjusted according to the application scenario.

[0012] Further preferably, the upper fixed plate and the lower fixed plate are provided with guide bearings on both sides of the first cutting cylinder and the second cutting cylinder, and the guide bearing center slides through a guide rod, and the upper and lower guide rods pass through the upper fixed plate and the lower fixed plate respectively, and are respectively connected to the back of the upper mold and the lower mold.

[0013] By adopting the above technical solution, the setting of the guide bearing and the guide rod makes the movement of the upper mold and the lower mold smoother. The setting of the guide bearing can also prevent the guide rod from getting stuck during the movement, thereby improving the working smoothness and stability of the cutting mechanism.

[0014] Preferably, the upper cutting assembly and the lower cutting assembly further include a first connecting plate and a second connecting plate, respectively; the backs of the upper mold and the lower mold are respectively fixed on the first connecting plate and the second connecting plate, and the first connecting plate and the second connecting plate are respectively connected to the first driving module and the second driving module; buffer springs are provided between the upper mold and the first connecting plate, and between the lower mold and the second connecting plate, and elastic fillings are also provided on the inner surfaces of the upper mold and the lower mold.

[0015] By adopting the above technical scheme, buffer springs are provided between the upper mold and the first connecting plate, and between the lower mold and the second connecting plate, which play a certain buffering role in the cutting process and protect the shape of the die-casting from being damaged during the cutting process. At the same time, elastic fillings are arranged on the inner surfaces of the upper mold and the lower mold, so that the upper mold and the lower mold have a certain buffering capacity when contacting the upper and lower surfaces of the die-casting, thereby avoiding damage to the surface of the die-casting.

[0016] Preferably, the rotating mechanism also includes a loading tray, and both the loading tray and the loading tray are hollow rectangular frames with equal length and width. The loading tray and the loading tray are respectively provided with mutually matching positioning pins and positioning holes on the diagonals of the frames. The loading tray and the loading tray are both provided with inclined surfaces at the inner circles of the matching surfaces, and the loading tray is also provided with clamping holes that cooperate with the feeding mechanism and the discharging mechanism.

[0017] By adopting the above technical solution, the loading tray and the loading plate can carry the die-casting parts after being matched, and play a preliminary positioning role. The structure of the positioning pin and the positioning hole is used to ensure that the relative position of the loading tray and the loading plate does not shift during the rotation process. The inclined surface set on the inner circle of the matching surface enables the two to be better aligned with the center. The clamping hole cooperates with the feeding mechanism and the discharging mechanism, which makes it convenient for the feeding mechanism and the discharging mechanism to place the loading tray with the die-casting parts on the corresponding loading plate or remove it from the corresponding loading plate.

[0018] Further preferably, a plurality of positioning rods arranged along the width direction are provided on the inner side of the frame of the loading tray, the shape of the positioning rods is matched with the outer surface of the die casting, and positioning grooves for the positioning rods to be embedded are opened on the lower mold.

[0019] By adopting the above technical solution, the shape of the positioning support rod is adapted to the outer surface of the die-casting, so that a preliminary positioning of the die-casting placed on the loading tray can be performed. At the same time, the positioning groove on the lower mold can cooperate with the positioning support rod, further providing a positioning effect for the cutting work, making the positioning of the die-casting in the overall work flow of the equipment more accurate.

[0020] Preferably, the feeding mechanism includes a feeding base and a first mounting tube vertically fixed upward on the feeding base, a second mounting tube is vertically arranged on the top of the first mounting tube facing the turntable, and a rodless cylinder is arranged on the side of the second mounting tube; a first double-axis cylinder is arranged on the slider of the rodless cylinder, the output end of the first double-axis cylinder is vertically downward, and a first finger cylinder is arranged on the output end of the first double-axis cylinder, and a first clamp is also fixed to the finger part of the first finger cylinder.

[0021] By adopting the above technical solution, the rodless cylinder controls the first finger cylinder to approach / move away from the turntable, and the first double-axis cylinder controls the up and down movement of the first finger cylinder in the vertical direction. The first clamp is used to place the loading tray with the die-cast parts on the loading tray to realize the automation of feeding work. Pneumatic actuators such as rodless cylinders, double-axis cylinders, and finger cylinders have the characteristics of fast response, which can greatly improve work efficiency.

[0022] Preferably, the discharging mechanism includes a discharging base and a third mounting tube vertically fixed upward on the discharging base, a rotary cylinder is arranged at the top of the third mounting tube, a three-axis cylinder is arranged at the top of the rotary cylinder, the output end of the three-axis cylinder is perpendicular to the third mounting tube and extends toward the turntable; a second double-axis cylinder is arranged at the output end of the three-axis cylinder, the output end of the second double-axis cylinder is vertically downward, and a second finger cylinder is arranged on the output end of the second double-axis cylinder, and a second clamp is also fixed to the finger portion of the second finger cylinder.

[0023] By adopting the above technical solution, the three-axis cylinder controls the second finger cylinder to approach / move away from the turntable, the second double-axis cylinder controls the up and down movement of the second finger cylinder in the vertical direction, and the second clamp is used to remove the carrier tray with the cut die-castings from the carrier tray. At the same time, the rotary cylinder controls the overall rotation of the discharge mechanism, driving the second finger cylinder to place the die-castings on the carrier tray to the qualified / unqualified product area.

[0024] According to a second aspect of the present application, a method for degating a die casting is provided, using the above-mentioned degating device for a die casting, comprising:

[0025] S1: The rodless cylinder and the first double-axis cylinder of the feeding mechanism control the first finger cylinder to move to the feeding area, the first finger cylinder controls the first clamp to clamp the carrier tray on which the die-casting to be processed is placed, and the rodless cylinder and the first double-axis cylinder then control the first finger cylinder to place the carrier tray on the carrier plate of the rotating mechanism;

[0026] S2: The turntable of the rotating mechanism controls the carrier plate to rotate to the previous station of the cutting mechanism, and the first camera identifies whether the die casting is placed correctly. If it is placed correctly, the turntable controls the carrier plate to rotate into the cutting space of the cutting mechanism;

[0027] S3: The second cutting cylinder of the cutting mechanism controls the lower mold to move upward, and the positioning groove of the lower mold cooperates with the positioning support rod of the carrier tray for secondary positioning. After the positioning is completed, the first cutting cylinder controls the upper mold to move downward, and the cutting blades on the upper and lower molds simultaneously cut off the gate on the die casting;

[0028] S4: After the cutting is completed, the turntable controls the carrier plate to rotate to the next station of the cutting mechanism, and the first camera identifies whether the gate is cut off properly;

[0029] S5: After identification is completed, the three-axis cylinder and the second two-axis cylinder of the discharging mechanism control the second finger cylinder to move to the top of the loading tray, the second finger cylinder controls the second clamp to clamp the loading tray, and the rotary cylinder drives the second finger cylinder to rotate, and places the loading trays with qualified and unqualified die-casting parts to the qualified area and unqualified area respectively;

[0030] S6: After the discharge mechanism takes away the die-casting and the loading tray, the turntable continues to drive the loading tray to rotate to the station where the feeding mechanism is located, and each loading tray repeats S1-S6 in a cycle.

[0031] By adopting the above technical scheme, the feeding mechanism utilizes the coordinated movement of the rodless cylinder, the first double-axis cylinder and the first finger cylinder to automatically clamp and place the carrier tray on the carrier tray of the rotating mechanism, and the rapid response characteristics of the pneumatic actuator can improve the working efficiency of the feeding link; the rotating mechanism drives the carrier tray to rotate through the turntable and cooperates with the first camera to identify the placement and cutting conditions to achieve precise positioning and quality control; the cutting mechanism controls the upper and lower molds for secondary positioning and gate cutting with the help of the first and second cutting cylinders to ensure the accuracy of the cutting position and improve the product processing quality; the discharging mechanism cooperates with the three-axis cylinder, the second double-axis cylinder, the second finger cylinder and the rotary cylinder to realize the classified placement of the cut products and the carrier tray. At the same time, the cyclic operation of each mechanism ensures production continuity, and the overall process of die-casting de-gating is automated, which greatly improves production efficiency, product qualification rate and equipment utilization rate, and reduces labor costs.

[0032] The beneficial effects of this application compared with the prior art are:

[0033] The die-casting de-gating device of the present application realizes the full process automation of die-casting de-gating. The feeding mechanism automatically clamps the carrier tray to the rotating mechanism carrier tray by the cooperation of the rodless cylinder, the first double-axis cylinder and the first finger cylinder. Its pneumatic actuator responds quickly to improve the feeding efficiency; the turntable of the rotating mechanism drives the carrier tray to rotate, and combined with the first camera recognition, it achieves precise positioning and quality monitoring to ensure that the die-casting is placed correctly and the gate is cut off properly; the cutting mechanism relies on the first and second cutting cylinders to drive the upper and lower molds to move in opposite directions, and cooperates with the positioning groove and the positioning support rod for secondary positioning to ensure the complete removal of the gate and improve the product processing quality; the discharging mechanism uses the three-axis cylinder, the second double-axis cylinder, the second finger cylinder and the rotary cylinder to realize the classified placement of the product and the carrier tray after cutting. The cyclic operation of each mechanism not only greatly improves production efficiency, reduces manpower input and reduces labor costs, but also effectively protects die-castings due to the buffer spring, elastic filling and precise positioning design, improves product qualification rate, and the guide bearing and guide rod settings ensure that the cutting mechanism works smoothly and stably, thereby improving the overall utilization rate of the equipment, meeting the needs of large-scale and efficient production and ensuring product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated into and constitute a part of this specification. The accompanying drawings illustrate the embodiments and are used together with the description to explain the principles of the present invention. It will be easy to recognize other embodiments and many expected advantages of the embodiments because they become better understood by reference to the following detailed description. The elements of the drawings are not necessarily to scale with each other. The same reference numerals refer to corresponding similar parts.

[0035] Figure 1 is a schematic structural diagram of a die casting de-gating device according to an embodiment of the present application;

[0036] Figure 2 is a schematic diagram of a cutting mechanism according to an embodiment of the present application;

[0037] Figure 3 is a schematic diagram of the installation of a cutting mechanism according to an embodiment of the present application;

[0038] Figure 4 is a schematic diagram of the installation of the lower cutting assembly according to an embodiment of the present application;

[0039] Figure 5 is a schematic diagram of the working of a cutting blade according to an embodiment of the present application;

[0040] Figure 6 is an exploded schematic diagram of a rotating mechanism according to an embodiment of the present application;

[0041] Figure 7 is a schematic diagram of the cooperation between the loading tray and the loading plate according to an embodiment of the present application;

[0042] Figure 8 is an exploded schematic diagram of a feeding mechanism according to an embodiment of the present application;

[0043] Fig. 9 is an exploded schematic diagram of a discharging mechanism according to an embodiment of the present application;

[0044] Fig.10 is a working schematic diagram of a die casting de-gating device according to an embodiment of the present application;

[0045] Fig.11 It is a flow chart of a method for de-gating a die casting according to an embodiment of the present application.

[0046] The meaning of the numbers in the figure:

[0047] Equipment body 01, rotating mechanism 02, turntable 03, loading plate 04, feeding mechanism 05, cutting mechanism 06, discharging mechanism 07, upper cutting assembly 08, lower cutting assembly 09, first driving module 10, second driving module 11, upper mold 12, lower mold 13, cutting blade 14, cutting bracket 15, upper fixing plate 16, lower fixing plate 17, supporting column 18, first camera 19, second camera 20, first cutting cylinder 21, second cutting cylinder 22, guide bearing 23, guide rod 24, first connecting plate 25, second connecting plate 26, positioning groove 27, rotating motor 2 8. Motor coupling 29, transmission shaft 30, lower bearing cover 31, deep groove ball bearing 32, thrust ball bearing 33, upper bearing cover 34, flange coupling 35, turntable 36, loading tray 37, locating pin 38, locating hole 39, clamping hole 40, locating support rod 41, feeding base 42, first mounting tube 43, second mounting tube 44, rodless cylinder 45, first double-axis cylinder 46, first finger cylinder 47, first clamping jaw 48, discharging base 49, third mounting tube 50, rotary cylinder 51, three-axis cylinder 52, second double-axis cylinder 53, second finger cylinder 54, second clamping jaw 55. DETAILED DESCRIPTION

[0048] In the following detailed description, reference is made to the accompanying drawings, which form a part of the detailed description and are shown by illustrative specific embodiments in which the present invention can be put into practice. To this end, directional terms, such as "top", "bottom", "left", "right", "up", "down", etc., are used with reference to the orientation of the figures described. Because the parts of the embodiments can be positioned in several different orientations, directional terms are used for the purpose of illustration and are by no means limiting. It should be understood that other embodiments may be utilized or logical changes may be made without departing from the scope of the present invention. Therefore, the following detailed description should not be adopted in a limiting sense, and the scope of the present invention is defined by the appended claims.

[0049] According to a first aspect of the present application, a die casting degating device is provided. Figure 1 FIG. 4 shows a schematic structural diagram of a die casting de-gating device according to an embodiment of the present application, as shown in FIG. Figure 1As shown, the device includes an equipment body 01 and a rotating mechanism 02 arranged on the upper surface of the equipment body 01, the rotating mechanism 02 includes a turntable 03 and a plurality of carriers 04 for placing die-castings, and the carriers 04 are equidistantly arranged around the turntable 03; a feeding mechanism 05, a cutting mechanism 06 and a discharging mechanism 07 are arranged around the turntable 03, and the turntable 03 drives each carrier 04 to pass through the feeding mechanism 05, the cutting mechanism 06 and the discharging mechanism 07 in sequence; the cutting mechanism 06 includes an upper cutting component 08 and a lower cutting component 09 respectively arranged on the upper and lower sides of the carrier 04, the upper cutting component 08 and the lower cutting component 09 respectively include a first driving module 10 and a second driving module 11, and also respectively include an upper mold 12 and a lower mold 13 adapted to the shape of the die-casting, and the upper mold 12 and the lower mold 13 are provided with cutting blades 14 corresponding to the gate position of the die-casting; the first driving module 10 and the second driving module 11 respectively drive the upper mold 12 and the lower mold 13 to move in opposite directions and cut off the gate.

[0050] By adopting the above technical solution, the feeding mechanism 05 first places the die-casting with the gate onto the loading tray 04, the turntable 03 drives the loading tray 04 to move to the position of the cutting mechanism 06, the first driving module 10 and the second driving module 11 respectively control the upper mold 12 and the lower mold 13 to clamp toward the middle, and cut off the redundant gate on the die-casting. After the cutting is completed, the turntable 03 continues to drive the loading tray 04 to move to the position of the discharging mechanism 07, and the discharging mechanism 07 then clamps the cut die-casting and places it in the qualified / unqualified area, so that the three steps of feeding, cutting and discharging can be automated, and at the same time, the complete removal of the gate can be ensured to protect the product quality of the die-casting.

[0051] Figure 2 shows a schematic diagram of a cutting mechanism according to an embodiment of the present application, Figure 3 FIG. 4 shows a schematic diagram of the installation of a cutting mechanism according to an embodiment of the present application, as shown in FIG. Figure 1-3 As shown, the cutting mechanism 06 also includes a cutting bracket 15, which includes an upper fixed plate 16 and a lower fixed plate 17. The lower fixed plate 17 is installed on the upper surface of the equipment body 01, and the four corresponding top corners of the upper fixed plate 16 and the lower fixed plate 17 are connected by a vertical support column 18 to form a cutting space; the upper fixed plate 16 is also provided with a first camera 19 and a second camera 20 at the positions corresponding to the front and rear loading trays 04 of the cutting mechanism 06.

[0052] Specifically, the top surface of the device body 01 is provided with a mounting hole that matches the shape of the lower fixing plate 17. In the present embodiment, the lower fixing plate 17 and the mounting hole are both rectangular, and the area of ​​the lower fixing plate 17 is larger than the mounting hole, so that the lower fixing plate 17 can be supported on the upper surface of the device body 01, and the second driving module 11 can pass through the mounting hole to enter the interior of the device body 01.

[0053] By adopting the above technical solution, the frame structure of the cutting bracket 15 forms a cutting space for the upper cutting component 08 and the lower cutting component 09 to work. When the turntable 03 drives the loading plate 04 to move to the center position of the cutting space, the upper cutting component 08 and the lower cutting component 09 cooperate to cut off the gate of the die-casting. The first camera 19 and the second camera 20 are respectively used to monitor the status of the die-casting located at the previous and next stations of the cutting mechanism 06, so as to realize the monitoring of the die-casting before and after cutting.

[0054] Further preferably, the first drive module 10 and the second drive module 11 respectively include a first cutting cylinder 21 and a second cutting cylinder 22, and the first cutting cylinder 21 and the second cutting cylinder 22 are respectively fixed on the upper surface of the upper fixed plate 16 and the lower surface of the lower fixed plate 17, and the output ends of the first cutting cylinder 21 and the second cutting cylinder 22 respectively pass through the upper fixed plate 16 and the lower fixed plate 17, and are respectively connected to the backs of the upper mold 12 and the lower mold 13.

[0055] In this embodiment, the driving source of the first driving module 10 and the second driving module 11 includes but is not limited to the first cutting cylinder 21 and the second cutting cylinder 22 , and may also be other power sources such as a driving motor.

[0056] By adopting the above technical solution, the first cutting cylinder 21 and the second cutting cylinder 22 respectively control the movement of the upper mold 12 and the lower mold 13, which can not only provide stable power for the removal of the gate, but also enable the upper mold 12 and the lower mold 13 to move synchronously or move one after another, which can be adjusted according to the application scenario.

[0057] Further preferably, the upper fixed plate 16 and the lower fixed plate 17 are provided with guide bearings 23 on both sides of the first cutting cylinder 21 and the second cutting cylinder 22, and a guide rod 24 slides through the center of the guide bearing 23. The upper and lower guide rods 24 pass through the upper fixed plate 16 and the lower fixed plate 17 respectively, and are connected to the back of the upper mold 12 and the lower mold 13 respectively.

[0058] By adopting the above technical solution, the setting of the guide bearing 23 and the guide rod 24 makes the movement of the upper mold 12 and the lower mold 13 more stable. The setting of the guide bearing 23 can also prevent the guide rod 24 from getting stuck during the movement, thereby improving the working smoothness and stability of the cutting mechanism 06.

[0059] Figure 4 FIG. 1 shows a schematic diagram of installing a lower cutting assembly according to an embodiment of the present application. Figure 5 FIG. 4 shows a schematic diagram of the working state of a cutting blade according to an embodiment of the present application, as shown in FIG. Figure 1-5As shown, the upper cutting component 08 and the lower cutting component 09 further include a first connecting plate 25 and a second connecting plate 26, respectively. The first connecting plate 25 and the second connecting plate 26 have the same structural shape. The backs of the upper mold 12 and the lower mold 13 are respectively fixed on the first connecting plate 25 and the second connecting plate 26, respectively. The first connecting plate 25 and the second connecting plate 26 are respectively connected to the first driving module 10 and the second driving module 11; buffer springs (not shown in the figure) are provided between the upper mold 12 and the first connecting plate 25, and between the lower mold 13 and the second connecting plate 26, and the inner surfaces of the upper mold 12 and the lower mold 13 are also provided with elastic filling (not shown in the figure).

[0060] In this example, the only difference between the upper mold 12 and the lower mold 13 is that a positioning groove 27 is also provided on the inner surface of the lower mold 13, and the other structures are exactly the same. The upper fixing plate 16 needs to have additional holes for installing the first camera 19 and the second camera 20, and the other structures are exactly the same as the lower fixing plate 17; as shown in the figure, the output end of the second cutting cylinder 22 passes through the lower fixing plate 17 and is fixed to the second connecting plate 26 by bolts, and the lower mold 13 is also connected to the second connecting plate 26 by bolts. After the bolt passes through the lower mold 13, it passes through the buffer spring and finally cooperates with the second connecting plate 26 to play a buffering role; the guide rods 24 on both sides of the second cutting cylinder 22 are connected to the two ends of the second connecting plate 26 to play a motion guiding role. The second connecting plate 26 is also provided with a bayonet for installing the cutting blade 14 at the opening position corresponding to the lower mold 13. After the cutting blade 14 is inserted into the bayonet, it is fixed to the back of the second connecting plate 26 by bolts. The installation method of the upper cutting component 08 is the same as above.

[0061] In this embodiment, the cutting edge of the cutting blade 14 is a beveled edge, and the cutting edges of the cutting blades 14 on the upper mold 12 and the lower mold 13 form opposing shear forces. The length of the contact area between the beveled cutting blade 14 and the die casting is much smaller than the total width, so that the gate can be cut off more effortlessly. Specifically, the cutting edge inclination of the cutting blade 14 in this example is 45°.

[0062] By adopting the above technical scheme, buffer springs are provided between the upper mold 12 and the first connecting plate 25, and between the lower mold 13 and the second connecting plate 26, which play a certain buffering role in the cutting process and protect the shape of the die-casting from being damaged during the cutting process. At the same time, elastic filling is provided on the inner surfaces of the upper mold 12 and the lower mold 13, so that the upper mold 12 and the lower mold 13 have a certain buffering capacity when contacting the upper and lower surfaces of the die-casting, thereby avoiding damage to the surface of the die-casting.

[0063] Figure 6 shows an exploded schematic diagram of a rotating mechanism according to an embodiment of the present application, Figure 7FIG. 4 shows a schematic diagram of the cooperation between the loading tray and the loading plate according to an embodiment of the present application, as shown in FIG. Figure 1-7 As shown, the rotating mechanism 02 also includes a rotating motor 28, the output end of the rotating motor 28 passes through the upper surface of the equipment body 01 and then is connected to the motor coupling 29, the other end of the motor coupling 29 is connected to one end of the transmission shaft 30, the transmission shaft 30 must first pass through the lower bearing cover 31 before matching with the motor coupling 29, the other end of the transmission shaft 30 passes through the deep groove ball bearing 32 and then passes through the upper surface from the center position of the turntable 03, the lower bearing cover 31 is matched with the lower surface of the turntable 03 by bolts, and the deep groove ball bearing 32 is fixed to the lower surface of the turntable 03. 2 is fixed; at the same time, a groove is opened on the upper surface of the turntable 03, and two thrust ball bearings 33 are arranged in the groove. The upper bearing cover 34 is fixed to the top surface of the turntable 03 by bolts, which plays the role of sealing the thrust ball bearings 33 in the groove. The transmission shaft 30 passes through the two thrust ball bearings 33 in sequence before passing through the upper surface of the turntable 03. After passing through, it is fixed with the lower surface of the turntable 36 through the flange coupling 35. The loading plate 04 is installed around the turntable 36 by bolts and other connecting parts.

[0064] The two thrust ball bearings 33 are used to enable the rotating shaft to rotate smoothly when the transmission shaft 30 has a large axial force, and the deep groove ball bearing 32 is used to enable the transmission shaft 30 to rotate more smoothly while ensuring a certain degree of centering.

[0065] Furthermore, the legs of the turntable 03 are fixed to the top surface of the equipment body 01 by bolts, and a sensor (not shown in the figure) can also be set on the turntable 03 to identify whether the position of the turntable 36 is correct, so as to ensure the stable operation of the whole device.

[0066] Preferably, the rotating mechanism 02 also includes a loading tray 37. Both the loading tray 04 and the loading tray 37 are hollow rectangular frames with equal length and width. The loading tray 04 and the loading tray 37 are respectively provided with mutually matching positioning pins 38 and positioning holes 39 on the diagonals of the frames. Both the loading tray 04 and the loading tray 37 are provided with inclined surfaces at the inner circles of the matching surfaces. The loading tray 37 is also provided with a clamping hole 40 that cooperates with the feeding mechanism 05 and the discharging mechanism 07.

[0067] By adopting the above technical solution, the loading tray 37 can carry the die-casting parts and play a preliminary positioning role after cooperating with the loading tray 04. The structure of the positioning pin 38 and the positioning hole 39 can ensure that the relative position of the loading tray 37 and the loading tray 04 does not shift during the rotation process. The inclined surface set on the inner circle of the matching surface enables the two to be better aligned with the center. The clamping hole 40 cooperates with the feeding mechanism 05 and the discharging mechanism 07, which makes it convenient for the feeding mechanism 05 and the discharging mechanism 07 to place the loading tray 37 with the die-casting parts on the corresponding loading tray 04 or remove it from the corresponding loading tray 04.

[0068] Further preferably, a plurality of positioning rods 41 arranged along the width direction are provided on the inner side of the frame of the loading tray 37, and the shape of the positioning rods 41 is adapted to the outer surface of the die-casting. When the lower mold 13 is matched with the loading tray 37, the positioning rods 41 are embedded in the positioning grooves 27 for positioning.

[0069] By adopting the above technical solution, the shape of the positioning support rod 41 is adapted to the outer surface of the die-casting, and a preliminary positioning of the die-casting placed on the loading tray 37 can be performed. At the same time, the positioning groove 27 on the lower mold 13 can cooperate with the positioning support rod 41, further providing a positioning effect for the cutting work, making the positioning of the die-casting in the overall work flow of the equipment more accurate.

[0070] In this embodiment, the die-casting part to be processed is a bathroom product (faucet), and the shapes of the upper mold 12, the lower mold 13 and the positioning support rod 41 have the same size and curvature as the outer surface of the die-casting part. In actual applications, the die-casting part to be processed can be valve accessories, bathroom accessories, locks, cabinets and other kitchen and bathroom home products. Different upper molds 12, lower molds 13 and positioning support rods 41 are used according to different product shapes.

[0071] Figure 8 A schematic diagram of the installation of the feeding mechanism according to an embodiment of the present application is shown, wherein the feeding mechanism 05 includes a feeding base 42 and a first mounting tube 43 vertically fixed on the feeding base 42, a second mounting tube 44 is vertically arranged on the top of the first mounting tube 43 facing the turntable 03, and a rodless cylinder 45 is arranged on the side of the second mounting tube 44; a first double-axis cylinder 46 is arranged on the slider of the rodless cylinder 45, an output end of the first double-axis cylinder 46 is vertically downward, and a first finger cylinder 47 is arranged on the output end of the first double-axis cylinder 46, and a first clamp 48 is also fixed to the finger portion of the first finger cylinder 47.

[0072] By adopting the above technical solution, the rodless cylinder 45 controls the first finger cylinder 47 to approach / move away from the turntable 03, and the first double-axis cylinder 46 controls the up and down movement of the first finger cylinder 47 in the vertical direction. The first clamp 48 is used to place the carrier tray 37 with the die-cast parts on the carrier tray 04, thereby realizing the automation of feeding work. Different types of cylinders have the characteristics of fast response as pneumatic actuators, which can greatly improve work efficiency.

[0073] Fig. 9A schematic diagram of the installation of the discharging mechanism according to the embodiment of the present application is shown, the discharging mechanism 07 includes a discharging base 49 and a third mounting tube 50 vertically fixed upward on the discharging base 49, a rotary cylinder 51 is arranged on the top of the third mounting tube 50, a three-axis cylinder 52 is arranged on the top of the rotary cylinder 51, the output end of the three-axis cylinder 52 is perpendicular to the third mounting tube 50 and extends toward the turntable 03; a second double-axis cylinder 53 is arranged on the output end of the three-axis cylinder 52, the output end of the second double-axis cylinder 53 is vertically downward, and a second finger cylinder 54 is arranged on the output end of the second double-axis cylinder 53, and a second clamp 55 is also fixed to the finger portion of the second finger cylinder 54.

[0074] By adopting the above technical solution, the three-axis cylinder 52 controls the second finger cylinder 54 to approach / move away from the turntable 03, the second double-axis cylinder 53 controls the up and down movement of the second finger cylinder 54 in the vertical direction, and the second clamp 55 is used to remove the carrier tray 37 with the cut die-castings from the carrier tray 04. At the same time, the rotary cylinder 51 controls the overall rotation of the discharge mechanism 07, driving the second finger cylinder 54 to place the die-castings on the carrier tray 37 into the qualified / unqualified product area.

[0075] In this embodiment, the connection and fixation of each cylinder of the feeding mechanism 05 and the discharging mechanism 07 are all plate-like connecting parts. The shape and structure of the plate-like connecting parts are different according to the structure of the connected cylinders. In actual applications, other matching methods can also be used. The first mounting tube 43, the second mounting tube 44, and the third mounting tube 50 are aluminum square tubes. The structure of the feeding mechanism 05 and the discharging mechanism 07 is similar to a cantilever beam. The ends of the first clamping jaw 48 and the second clamping jaw 55 have protrusions that match the clamping holes 40 of the cargo tray 37. At the same time, rubber pads can be added to the sides of the first clamping jaw 48 and the second clamping jaw 55 to increase friction and prevent falling off.

[0076] The feeding and discharging is mainly used to clamp the uncut die castings and the cut die castings. In the design of this embodiment, a pneumatic component combination is used to complete this part of the work. The main reasons for using a pneumatic actuator combination to complete it are as follows:

[0077] Pneumatic actuators have the characteristics of fast response. Pneumatic actuators can complete actions in a very short time, realize high-speed automatic control, and greatly improve work efficiency.

[0078] The structure of pneumatic actuators is relatively simple, which makes their maintenance relatively easy. At the same time, pneumatic actuators have a long service life and can maintain stable working performance for a long time.

[0079] The positioning accuracy of pneumatic actuators may not be as good as some electric actuators, but in many applications, the accuracy of pneumatic actuators is sufficient to meet the needs. And, through reasonable design and control, the accuracy of pneumatic actuators can be further improved.

[0080] Pneumatic actuators also have high thrust and torque output, which makes them perform well in workplaces that require large output and can meet various complex control requirements.

[0081] Fig.10 FIG. 2 shows a schematic diagram of the operation of a die casting de-gating device according to an embodiment of the present application, as shown in FIG. Figure 1-10 As shown, the cylinders of the feeding mechanism 05 cooperate to clamp the carrier tray 37 with the die-casting to be processed from the feeding area and place it on the carrier plate 04. The rotating mechanism 02 drives the carrier plate 04 to rotate into the cutting space of the cutting mechanism 06, and the gate of the die-casting is cut by the upper cutting component 08 and the lower cutting component 09. The rotating mechanism 02 then sends it to the position of the discharging mechanism 07. The first camera 19 and the second camera 20 are respectively used for status monitoring of the die-casting before and after cutting. The cylinders of the discharging mechanism 07 cooperate to send the cut die-casting to the qualified area / unqualified area, thereby completing a die-casting de-gating process.

[0082] According to a second aspect of the present application, a method for degating a die casting is provided, using the above-mentioned degating device for a die casting, comprising:

[0083] S1: The rodless cylinder 45 and the first double-axis cylinder 46 of the feeding mechanism 05 control the first finger cylinder 47 to move to the feeding area, the first finger cylinder 47 controls the first clamp 48 to clamp the carrier tray 37 on which the die-casting to be processed is placed, and the rodless cylinder 45 and the first double-axis cylinder 46 then control the first finger cylinder 47 to place the carrier tray 37 on the carrier plate 04 of the rotating mechanism 02;

[0084] S2: The turntable 03 of the rotating mechanism 02 controls the loading plate 04 to rotate to the previous station of the cutting mechanism 06, and the first camera 19 identifies whether the die casting is placed correctly. If it is placed correctly, the turntable 03 controls the loading plate 04 to rotate to the cutting space of the cutting mechanism 06;

[0085] S3: The second cutting cylinder 22 of the cutting mechanism 06 controls the lower mold 13 to move upward, and the positioning groove 27 of the lower mold 13 cooperates with the positioning support rod 41 of the loading tray 37 to perform secondary positioning. After the positioning is completed, the first cutting cylinder 21 controls the upper mold 12 to move downward, and the cutting blades 14 on the upper mold 12 and the lower mold 13 simultaneously cut off the gate on the die casting;

[0086] S4: After the cutting is completed, the turntable 03 controls the carrier plate 04 to rotate to the next station of the cutting mechanism 06, and the first camera 19 identifies whether the gate is cut off properly;

[0087] S5: After identification is completed, the three-axis cylinder 52 and the second two-axis cylinder 53 of the discharging mechanism 07 control the second finger cylinder 54 to move to the top of the loading tray 04, the second finger cylinder 54 controls the second clamping claw 55 to clamp the loading tray 37, and the rotary cylinder 51 drives the second finger cylinder 54 to rotate, and places the loading tray 37 with the qualified and unqualified die-casting parts to the qualified area and the unqualified area respectively;

[0088] S6: After the discharge mechanism 07 takes away the die-casting and the loading tray 37, the turntable 03 continues to drive the loading tray 04 to rotate to the station where the feeding mechanism 05 is located, and each loading tray 04 repeats S1-S6 in a cycle.

[0089] By adopting the above technical solution, the feeding mechanism 05 utilizes the coordinated movement of the rodless cylinder 45, the first double-axis cylinder 46 and the first finger cylinder 47 to automatically clamp and place the carrier tray 37 on the carrier plate 04 of the rotating mechanism 02, and the rapid response characteristics of the pneumatic actuator can improve the working efficiency of the feeding link; the rotating mechanism 02 drives the carrier plate 04 to rotate through the turntable 03 and cooperates with the first camera 19 to identify the placement and cutting conditions, thereby realizing precise positioning and quality control; the cutting mechanism 06 uses the first cutting cylinder 21 ... The two cutting cylinders 22 control the upper mold 12 and the lower mold 13 to perform secondary positioning and gate cutting to ensure accurate cutting position and improve product processing quality; the discharge mechanism 07 cooperates with the three-axis cylinder 52, the second double-axis cylinder 53, the second finger cylinder 54 and the rotary cylinder 51 to achieve the classified placement of the cut products and the loading tray 37. At the same time, the cyclic operation of each mechanism ensures production continuity, and the overall process of die-casting de-gating is automated, which greatly improves production efficiency, product qualification rate and equipment utilization rate, and reduces labor costs.

[0090] The die-casting de-gating device of the present application realizes the full process automation of die-casting de-gating. The feeding mechanism 05 automatically clamps the carrier tray 37 to the carrier tray 04 of the rotating mechanism 02 by means of the cooperation of the rodless cylinder 45, the first double-axis cylinder 46 and the first finger cylinder 47, and its pneumatic actuator responds quickly to improve the feeding efficiency; the turntable 03 of the rotating mechanism 02 drives the carrier tray 04 to rotate, and combined with the recognition of the first camera 19, accurate positioning and quality monitoring are achieved to ensure that the die-casting is placed correctly and the gate is cut off properly; the cutting mechanism 06 relies on the first cutting cylinder 21 and the second cutting cylinder 22 to drive the upper mold 12 and the lower mold 13 to move in opposite directions, and cooperates with the positioning groove 27 and the positioning support rod 41 for secondary positioning to ensure the complete removal of the gate and improve the product processing quality; the discharging mechanism 07 uses the three-axis cylinder 52, the second double-axis cylinder 53, the second finger cylinder 54 and the rotary cylinder 51 to realize the classified placement of the cut products and the carrier tray 37. The cyclic operation of each mechanism not only greatly improves production efficiency, reduces manpower input and reduces labor costs, but also effectively protects die-castings due to the buffer spring, elastic filling and precise positioning design, thereby improving product qualification rate. The setting of the guide bearing 23 and the guide rod 24 ensures that the cutting mechanism 06 works smoothly and stably, thereby improving the overall utilization rate of the equipment, meeting the needs of large-scale and efficient production and ensuring product quality.

[0091] Obviously, those skilled in the art can make various modifications and changes to the embodiments of the present invention without departing from the spirit and scope of the present invention. In this way, if these modifications and changes are within the scope of the claims of the present invention and their equivalents, the present invention is also intended to cover these modifications and changes. The word "comprising" does not exclude the presence of other elements or steps not listed in the claims. The simple fact that certain measures are recorded in mutually different dependent claims does not indicate that the combination of these measures cannot be used to profit. Any reference numerals in the claims should not be considered to limit the scope.

Claims

1. A die casting degating device, characterized in that: It includes an equipment body and a rotating mechanism arranged on the upper surface of the equipment body, the rotating mechanism includes a turntable and a plurality of carriers for placing die-castings, and the carriers are equidistantly arranged around the turntable; a feeding mechanism, a cutting mechanism and a discharging mechanism are arranged around the turntable, and the turntable drives each of the carriers to pass through the feeding mechanism, the cutting mechanism and the discharging mechanism in sequence; the cutting mechanism includes an upper cutting assembly and a lower cutting assembly respectively arranged on the upper and lower sides of the carrier, the upper cutting assembly and the lower cutting assembly respectively include a first driving module and a second driving module, and also respectively include an upper mold and a lower mold adapted to the shape of the die-casting, and the upper mold and the lower mold are both provided with cutting blades corresponding to the gate position of the die-casting; the first driving module and the second driving module respectively drive the upper mold and the lower mold to move in opposite directions and cut off the gate.

2. The die casting de-gating device according to claim 1, characterized in that: The cutting mechanism also includes a cutting bracket, which includes an upper fixed plate and a lower fixed plate, the lower fixed plate is installed on the upper surface of the equipment body, and the four corresponding top corners of the upper fixed plate and the lower fixed plate are connected by vertical support columns to form a cutting space; the first camera and the second camera are respectively provided on the upper fixed plate at the positions corresponding to the front and rear loading trays of the cutting mechanism.

3. The die casting de-gating device according to claim 2, characterized in that: The first driving module and the second driving module respectively include a first cutting cylinder and a second cutting cylinder, the first cutting cylinder and the second cutting cylinder are respectively fixed to the upper surface of the upper fixed plate and the lower surface of the lower fixed plate, the output ends of the first cutting cylinder and the second cutting cylinder respectively pass through the upper fixed plate and the lower fixed plate, and are respectively connected to the backs of the upper mold and the lower mold.

4. The die casting de-gating device according to claim 3, characterized in that: The upper fixed plate and the lower fixed plate are provided with guide bearings on both sides of the first cutting cylinder and the second cutting cylinder, and a guide rod slides through the center of the guide bearing. The upper and lower guide rods pass through the upper fixed plate and the lower fixed plate respectively, and are connected to the backs of the upper mold and the lower mold respectively.

5. The die casting degating device according to claim 1, characterized in that: The upper cutting assembly and the lower cutting assembly also include a first connecting plate and a second connecting plate, respectively. The backs of the upper mold and the lower mold are fixed on the first connecting plate and the second connecting plate, respectively. The first connecting plate and the second connecting plate are connected to the first driving module and the second driving module, respectively. Buffer springs are provided between the upper mold and the first connecting plate, and between the lower mold and the second connecting plate, and the inner surfaces of the upper mold and the lower mold are also provided with elastic filling.

6. The die casting degating device according to claim 1, characterized in that: The rotating mechanism also includes a loading tray, and the loading tray and the loading tray are both hollow rectangular frames with equal length and width. The loading tray and the loading tray are respectively provided with mutually matching positioning pins and positioning holes on the diagonals of the frames. The loading tray and the loading tray are both provided with inclined surfaces at the inner circles of the matching surfaces. The loading tray is also provided with clamping holes that cooperate with the feeding mechanism and the discharging mechanism.

7. The die casting degating device according to claim 6, characterized in that: A plurality of positioning rods are arranged along the width direction on the inner side of the frame of the cargo tray. The shape of the positioning rods matches the outer surface of the die casting, and positioning grooves for the positioning rods to be embedded are opened on the lower mold.

8. The die casting degating device according to claim 1, characterized in that: The feeding mechanism includes a feeding base and a first mounting tube vertically fixed upward on the feeding base, a second mounting tube is vertically arranged on the top of the first mounting tube facing the turntable, and a rodless cylinder is arranged on the side of the second mounting tube; a first double-axis cylinder is arranged on the slider of the rodless cylinder, the output end of the first double-axis cylinder is vertically downward, and a first finger cylinder is arranged on the output end of the first double-axis cylinder, and a first clamp is also fixed to the finger part of the first finger cylinder.

9. The die casting degating device according to claim 1, characterized in that: The discharging mechanism includes a discharging base and a third mounting tube vertically fixed upward on the discharging base, a rotary cylinder is arranged at the top of the third mounting tube, a three-axis cylinder is arranged on the top of the rotary cylinder, the output end of the three-axis cylinder is perpendicular to the third mounting tube and extends towards the turntable; a second double-axis cylinder is arranged at the output end of the three-axis cylinder, the output end of the second double-axis cylinder is vertically downward, and a second finger cylinder is arranged on the output end of the second double-axis cylinder, and a second clamp is also fixed to the finger part of the second finger cylinder.

10. A method for degating a die casting, using the die casting degating device according to any one of claims 1 to 9, characterized in that: include: S1: The rodless cylinder and the first double-axis cylinder of the feeding mechanism control the first finger cylinder to move to the feeding area, the first finger cylinder controls the first clamp to clamp the carrier tray on which the die-casting to be processed is placed, and the rodless cylinder and the first double-axis cylinder then control the first finger cylinder to place the carrier tray on the carrier plate of the rotating mechanism; S2: The turntable of the rotating mechanism controls the carrier plate to rotate to the previous station of the cutting mechanism, and the first camera identifies whether the die casting is placed correctly. If it is placed correctly, the turntable controls the carrier plate to rotate into the cutting space of the cutting mechanism; S3: The second cutting cylinder of the cutting mechanism controls the lower mold to move upward, and the positioning groove of the lower mold cooperates with the positioning support rod of the carrier tray for secondary positioning. After the positioning is completed, the first cutting cylinder controls the upper mold to move downward, and the cutting blades on the upper mold and the lower mold simultaneously cut off the gate on the die casting; S4: After the cutting is completed, the turntable controls the carrier plate to rotate to the next station of the cutting mechanism, and the first camera identifies whether the gate is cut off properly; S5: After identification is completed, the three-axis cylinder and the second two-axis cylinder of the discharging mechanism control the second finger cylinder to move to the top of the loading tray, the second finger cylinder controls the second clamp to clamp the loading tray, the rotary cylinder drives the second finger cylinder to rotate, and places the loading trays with the qualified and unqualified die-casting parts to the qualified area and the unqualified area respectively; S6: After the discharging mechanism takes away the die-casting and the loading tray, the turntable continues to drive the loading tray to rotate to the station where the feeding mechanism is located, and each loading tray repeats S1-S6 in a cycle.

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