Stamping equipment with automatic hole shaping function

Abstract

The invention discloses stamping equipment with an automatic hole shaping function. The stamping equipment comprises a hole shaping punch, a hole shaping driving mechanism, a sliding mechanism, a lever mechanism, a feeding mechanism, a material blocking mechanism, a material moving mechanism and a blanking plate. The vibration disc ranks product workpieces according to a certain rule mode and moves downwards along the feeding channel, and the sequential feeding procedure is carried out. The material blocking air cylinder drives the blocking needle to move forwards or retract, the outlet of the feeding channel is blocked when the blocking needle moves forwards, and therefore it is determined that only one product workpiece can enter the hole finishing station. The material moving air cylinder drives the gripper to move forwards to position the product workpiece, so that the product workpiece is accurately located at a hole finishing station; the hole shaping driving air cylinder drives the hole shaping punch to descend to a hole shaping station through the lever mechanism and the sliding block mechanism, and punching shaping operation on an inner hole of a product workpiece is completed. After shaping is completed, the hole shaping punch moves upwards to the initial position, the material moving air cylinder drives the gripper to move the product workpiece backwards to the discharging station through negative pressure, and finally the product workpiece slides down through the discharging channel. And after the product workpieces fall off, the material moving air cylinder drives the gripper to reset forwards to the positioning position, the material blocking air cylinder drives the blocking needle to retract, and the next product workpiece enters a hole finishing station. The automatic hole finishing operation of a plurality of product workpieces can be continuously completed through circulation, the structural design is simple and reasonable, and operation is easy and convenient.

Description

Technical Field

[0001] The invention relates to the technical field of workpiece through holes, and in particular to a punching device capable of realizing an automatic hole trimming function for a workpiece. Background Art

[0002] The mainstream production method for gears and other workpieces includes production through powder metallurgy. Due to the limitations of the process and the production environment of powder metallurgy, the inner hole of the workpiece is prone to protruding foreign matter or dust, etc., which makes it difficult to meet the use requirements. Therefore, the inner hole of the gear workpiece needs to be pierced (through-hole) during the production process. The existing piercing operation is done manually, with a low level of automation, and manual operation is inconvenient for smaller products.

[0003] In addition, there are also stamping devices designed specifically for completing automatic hole-forming in the prior art. The common solution is to set a pneumatic cylinder, and the driving end of the pneumatic cylinder is directly connected to the punch, and the punch is driven to punch the workpiece to complete the hole-forming. For example, a hexagonal hole punching device disclosed in the Chinese patent application with application number 201410217821.0, and a through-hole mechanism disclosed in the Chinese patent application with application number 201620633194.3, etc. This structural design has the following defects and shortcomings:

[0004] 1) The mounting base, cylinder and punch need to be installed in the same straight line (usually vertical position), which makes the overall height of the equipment too high, occupies a large space, is inconvenient to use, and the mounting base is difficult to install;

[0005] 2) Since the cylinder driving end is directly and rigidly connected to the punch, and both the cylinder driving end and the punch have a certain length (especially when the punch needs to be installed with a slender ejector structure), after installation, if the impact force is too large, the force is uneven, or the workpiece is improperly positioned, the cylinder driving the punch directly will easily cause the cylinder driving end, the punch, or the connection between the two to break;

[0006] 3) The design of the cylinder directly connected to the punch makes it difficult to set up a guide structure (such as a guide column), and the requirements for relying solely on traditional pneumatic cylinders to achieve both power and guidance are too high. If the cylinder is improved structurally, it is only applicable to a single device, has poor adaptability, and is too costly.

[0007] Based on this, it is necessary to improve the traditional stamping equipment used to perform hole filling function on workpieces in the prior art. Summary of the invention

[0008] In order to overcome the technical problems of low efficiency and inconvenient operation of manual hole-sizing in the above-mentioned prior art, as well as large space occupied and easy structural damage of traditional stamping equipment, the present invention provides a stamping equipment with automatic hole-sizing function.

[0009] The technical solution adopted by the present invention to solve the problem is:

[0010] A punching device with automatic hole-sizing function, comprising:

[0011] A machine base, wherein a first mounting seat and a second mounting seat are provided on the machine base, and a hole-forming station is provided on the first mounting seat;

[0012] A hole-forming punch and a sliding mechanism, wherein the sliding mechanism comprises a fixed seat fixedly mounted on the second mounting seat and a sliding block slidably connected to the fixed seat, the hole-forming punch and the sliding block are fixedly connected, and the hole-forming punch is located above the hole-forming station;

[0013] A hole-filling driving mechanism, the hole-filling driving mechanism includes a hole-filling driving cylinder installed on the second mounting seat, and the hole-filling driving cylinder drives the slider to move up and down through the lever mechanism, thereby driving the hole-filling punch to descend from an initial position to the hole-filling station or move from the hole-filling station to the initial position.

[0014] Furthermore, the hole-forming punch comprises a punch seat and an ejector pin located below the punch seat, the top of the punch seat is fixedly connected to the slider, and the ejector pin is arranged opposite to the hole-forming station.

[0015] In a preferred embodiment of the present invention, a specific structural design scheme for a lever mechanism is disclosed.

[0016] In this technical solution, the lever mechanism includes a first swing arm, a second swing arm and a third swing arm, one end of the first swing arm, the second swing arm and the third swing arm are rotatably connected, the other end of the first swing arm is rotatably connected to the output end of the whole hole driving cylinder, the other end of the second swing arm is rotatably connected to the slider, and the other end of the third swing arm is rotatably connected to the second mounting seat.

[0017] Furthermore, the second swing arm and the third swing arm are located on one side of the second mounting seat, and the whole hole driving cylinder is arranged on the other side of the second mounting seat. The second mounting seat is provided with an opening, and the output end of the whole hole driving cylinder passes through the opening and is rotatably connected to the first swing arm.

[0018] Furthermore, a first avoidance position is provided on a side of the second swing arm close to the connection point with the first swing arm, and a second avoidance position is provided on a side of the third swing arm close to the connection point with the first swing arm.

[0019] In another preferred embodiment of the present invention, a specific structural design scheme is disclosed on how the stamping equipment can realize the feeding process and the blocking process.

[0020] In this technical solution, the stamping equipment with automatic hole-sizing function also includes a feeding mechanism, which includes a vibrating disk and a feeding plate. The feeding plate is provided with a feeding channel, one end of the feeding channel is connected to the vibrating disk, and the other end is located adjacent to the hole-sizing station.

[0021] Furthermore, the stamping equipment with automatic hole-sizing function also includes a material blocking mechanism, which includes a material blocking cylinder and a blocking needle connected to the output end of the material blocking cylinder, and the material blocking cylinder is used to drive the blocking needle to move between the feeding channel and the hole-sizing station.

[0022] In another preferred embodiment of the present invention, a specific structural design scheme is disclosed on how the stamping equipment can realize the material transfer process and the material unloading process.

[0023] In this technical solution, the stamping equipment with automatic hole-sizing function also includes a material moving mechanism, which includes a material moving cylinder and a gripper connected to the output end of the material moving cylinder. A long groove connected to the hole-sizing station is provided on the first mounting plate, and the gripper is located in the long groove.

[0024] Furthermore, the stamping equipment with automatic hole-sizing function also includes a blanking plate, which is obliquely arranged at an adjacent position of the second mounting plate, and a blanking channel is provided on the blanking plate. The long groove is provided with a blanking station, and the upper end of the blanking channel is connected to the blanking station.

[0025] Furthermore, an air suction port is provided at one end of the gripper away from the material transfer cylinder, and an air suction channel connected to the air suction port is provided inside the gripper.

[0026] Based on the above structural design, the specific working process of the stamping equipment of the present invention is as follows:

[0027] The vibrating plate of the feeding mechanism arranges the product workpieces in a certain regular manner, moves them down along the feeding channel of the feeding plate, and performs the loading process in sequence; the material blocking cylinder of the material blocking mechanism drives the blocking needle to move forward or retract, and blocks the exit of the feeding channel when moving forward, thereby determining that only one product workpiece can enter the hole-forming station; the material shifting cylinder of the material shifting mechanism drives the gripper to move forward to position the product workpiece so that it is accurately located at the hole-forming station; the hole-forming driving cylinder of the hole-forming driving mechanism drives the hole-forming punch to descend to the hole-forming station by means of a lever mechanism and a slider mechanism, and completes the stamping and shaping operation on the inner hole of the product workpiece; after the shaping is completed, the hole-forming punch moves up to the initial position, and the material shifting cylinder drives the gripper to use negative pressure to move the product workpiece backward to the blanking station, and finally slides down through the blanking channel of the blanking plate; after the product workpiece falls off, the material shifting cylinder drives the gripper to reset forward to the positioning position, the material blocking cylinder drives the blocking needle to retract, and the next product workpiece enters the hole-forming station. In this way, the automatic hole-filling operation on multiple product workpieces can be completed continuously. The structural design is simple and reasonable, and the operation is easy.

[0028] In summary, the punching equipment with automatic hole-sizing function provided by the present invention has at least the following technical effects compared with the prior art:

[0029] 1) The hole-splitting driving mechanism of the present invention is used as a driving mechanism, and the sliding mechanism and the lever structure are used as a transmission mechanism. The horizontal movement of the output end of the hole-splitting driving mechanism is converted into the up and down movement of the hole-splitting punch through the sliding mechanism and the lever structure, thereby realizing continuous hole-splitting operation on the product workpiece. Compared with the traditional method of directly connecting the cylinder to the punch to drive the punching, the hole-splitting driving cylinder and its output end and the hole-splitting punch of the present invention do not need to be arranged in the same straight line, thereby reducing the height of the equipment in the vertical direction and reducing the space occupied; by arranging a lever mechanism between the hole-splitting driving cylinder and the hole-splitting punch, the input force of the cylinder is amplified by the lever principle, thereby reducing the driving force of the cylinder under the demand of the same impulse, avoiding structural fracture due to factors such as excessive impulse, and the lever mechanism and the slider mechanism can effectively reduce the vibration and impact phenomenon during the transmission process, and the cylinder output end and the hole-splitting punch are not prone to structural damage, thereby improving the stability and life of the equipment; by arranging a fixed seat and a slider in the movement direction of the hole-splitting punch, the transmission effect is achieved while also having a guiding function, reducing the output burden of the hole-splitting driving cylinder, and no other guiding structures need to be arranged, thereby significantly reducing the cost.

[0030] 2) The present invention arranges a hole-filling punch, a sliding mechanism, a hole-filling driving mechanism, a lever mechanism, a material blocking mechanism and a material shifting mechanism, thereby utilizing the transmission function of the swing arm and the slider, the hole-filling function of the ejector pin, the material blocking function of the stopper pin and the positioning and shifting functions of the gripper to complete each process from loading to blanking of the product workpiece, thereby automatically realizing continuous through-hole operation of the stamping equipment, with a simple and reasonable structural design, easy operation and high hole-filling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of a punching device with automatic hole-sizing function of the present invention;

[0032] Figure 2 for Figure 1 A partial enlarged schematic diagram of the H portion shown;

[0033] Figure 3 It is a side view of the punching equipment with automatic hole-sizing function of the present invention;

[0034] Figure 4 It is a partial structural schematic diagram of the punching equipment with automatic hole-sizing function of the present invention;

[0035] The meanings of the reference numerals are as follows:

[0036] 1. Machine base; 11. First mounting seat; 111. Hole-forming station; 112. Blanking station; 12. Second mounting seat;

[0037] 2. Full hole punch;

[0038] 3. Sliding mechanism; 31. Fixed seat; 32. Sliding block;

[0039] 4. Whole hole driving mechanism; 41. Whole hole driving cylinder; 42. Output end; 43. First air connection pipe;

[0040] 5. Lever mechanism; 51. First swing arm; 52. Second swing arm; 521. First avoidance position; 53. Third swing arm; 531. Second avoidance position;

[0041] 6. Vibrating plate; 61. Loading plate;

[0042] 7. material blocking mechanism; 71. material blocking cylinder; 72. blocking needle; 73. second air connecting pipe;

[0043] 8. Material transfer mechanism; 81. Material transfer cylinder; 82. Gripper; 83. Third air connection pipe; 84. Fourth air connection pipe;

[0044] 9. Blanking plate. DETAILED DESCRIPTION

[0045] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0046] In the description of the present invention, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0048] See also Figure 1 As shown, according to an embodiment of the present invention, a punching device with an automatic hole-forming function comprises a machine base 1, on which a first mounting seat 11 and a second mounting seat 12 are provided, and a hole-forming station 111 is provided on the first mounting seat 11. The hole-forming station 111 is used to place a product workpiece to be hole-formed, and to perform a hole-forming operation on the inner hole of the product workpiece through a hole-forming punch 2.

[0049] See also Figure 1 and Figure 3 As shown, the punching equipment with automatic hole-sizing function also includes a hole-sizing punch 2 and a sliding mechanism 3, the sliding mechanism 3 includes a fixed seat 31 and a slider 32, the fixed seat 31 is fixedly mounted on the second mounting seat 12, the slider 32 can be slidably connected to the fixed seat 31 in the vertical direction, the hole-sizing punch 2 and the slider 32 are fixedly connected, and the hole-sizing punch 2 is located above the hole-sizing station 111. The slider 32 slides up and down on the fixed seat 31, which can drive the hole-sizing punch 2 to move up and down, respectively completing the hole-sizing operation and the reset operation.

[0050] See also Figure 3 As shown, the punching equipment with automatic hole-sizing function also includes a hole-sizing driving mechanism 4, which includes a hole-sizing driving cylinder 41, and the hole-sizing driving cylinder 41 is installed on the second mounting seat 12. Among them, a lever mechanism 5 is provided between the hole-sizing driving cylinder 41 and the sliding mechanism 3, and the hole-sizing driving cylinder 41 drives the slide block 32 to move up and down through the lever mechanism 5, thereby driving the hole-sizing punch 2 to descend from the initial position to the hole-sizing station 111 or move from the hole-sizing station 11 to the initial position, thereby completing the hole-sizing operation and the reset operation on the product workpiece respectively. Specifically, see Figure 1 As shown, the whole hole driving cylinder 41 is connected to a first air connecting pipe 43, which is used as a pipeline connecting the whole hole driving cylinder 41 and the air source, and transports compressed air from the air source to the whole hole driving cylinder 41 to drive the output end of the whole hole driving cylinder 41 to reciprocate in the horizontal direction.

[0051] In the technical solution of this embodiment, the hole-straightening driving cylinder 41 of the hole-straightening driving mechanism 4 is used as a driving mechanism, and the sliding mechanism 3 and the lever structure 5 are used as a transmission mechanism. The horizontal movement of the output end of the hole-straightening driving mechanism 41 is converted into the up and down movement of the hole-straightening punch 2 through the sliding mechanism 3 and the lever structure 5, thereby realizing continuous hole-straightening operation on the product workpiece. Compared with the traditional cylinder directly connected to the punch to drive the stamping, the present invention does not need to set the hole-straightening driving cylinder 41 and its output end and the hole-straightening punch 2 in the same straight line, thereby reducing the height of the stamping equipment in the vertical direction and reducing the space occupied. Furthermore, by setting a lever mechanism 5 between the whole hole driving cylinder 41 and the whole hole punch 2, the lever principle of the lever mechanism 5 is used to amplify the input force of the whole hole driving cylinder 41, so that the driving force at the output end of the whole hole driving cylinder 41 can be reduced under the demand of the same impact force, avoiding structural fracture due to factors such as excessive impact force, and the lever mechanism 5 and the slider mechanism 3 can effectively reduce the vibration and impact phenomenon during the transmission process, and the output end of the whole hole driving cylinder 41 and the whole hole punch 2 are not prone to structural damage, thereby improving the stability and life of the equipment. In addition, by setting a fixed seat 31 and a slider 32 in the movement direction of the whole hole punch 2, the transmission effect is achieved while also having a guiding effect, reducing the output burden of the whole hole driving cylinder 41, and no other guiding structures need to be set, which significantly reduces costs.

[0052] Preferably, the hole punch 2 includes a punch seat and an ejector pin, and the ejector pin is located below the punch seat. The top of the punch seat is fixedly connected to the slider 32, serving as a connecting structure between the ejector pin and the slider 32; the ejector pin is arranged opposite to the hole punch station 111, and the size of the ejector pin is equal to or smaller than the inner hole size of the product workpiece, ensuring that the ejector pin can be inserted into the inner hole of the product workpiece to complete the hole punching operation when the hole punch 2 is lowered. Furthermore, the ejector pin and the punch seat are detachably connected, so that different types of ejector pins can be selected and replaced according to the inner diameter size of the specific product workpiece, thereby improving the adaptability of the equipment.

[0053] Example 1

[0054] In a preferred embodiment of the present invention, a specific structural design scheme for the lever mechanism 5 is disclosed.

[0055] See also Figure 2 and Figure 3As shown, in the technical solution of this embodiment, the lever mechanism 5 includes a first swing arm 51, a second swing arm 52 and a third swing arm 53, one end of the first swing arm 51, the second swing arm 52 and the third swing arm 53 are rotatably connected, the other end of the first swing arm 51 is rotatably connected to the output end of the hole-splitting driving cylinder 41, the other end of the second swing arm 52 is rotatably connected to the slider 32, and the other end of the third swing arm 53 is rotatably connected to the second mounting seat 12. Specifically, when the output end of the hole-splitting driving cylinder 41 reciprocates in the horizontal direction, it can drive the first swing arm 51 to swing, and then drive the second swing arm 52 and the third swing arm 53 to swing, and the three are combined to form a dynamic lever mechanism, thereby converting the horizontal movement of the output end of the hole-splitting driving cylinder 41 into the up and down movement of the slider 32, and then driving the hole-splitting punch 2 to move up and down, respectively completing the hole-splitting operation and the reset operation. Among them, the first swing arm 51, the second swing arm 52 and the third swing arm 53 use the lever principle to amplify the input force of the whole hole driving cylinder 41, so that the driving force at the output end of the whole hole driving cylinder 41 can be reduced under the requirement of the same impact force, avoiding the output end of the whole hole driving cylinder 41 and the whole hole punch 2 from breaking due to factors such as excessive impact force.

[0056] See also Figure 3 As shown, in a preferred solution of this embodiment, the second swing arm 52 and the third swing arm 53 are located on one side of the second mounting seat 12, that is, the side where the lever mechanism 5, the sliding mechanism 3 and the hole-straightening punch 2 are located; the hole-straightening driving cylinder 41 is arranged on the other side of the second mounting seat 12; the second mounting seat 12 is provided with an opening, and the output end of the hole-straightening driving cylinder 41 passes through the opening and is rotatably connected to the first swing arm 51. In the technical solution of this embodiment, the hole-straightening driving cylinder 41 and the second swing arm 52 and the third swing arm 53 of the lever mechanism 5 are respectively arranged at different side positions of the second mounting seat 12, which is beneficial to the space design of the stamping equipment, reduces the space occupied, and avoids the hole-straightening driving cylinder 41 from interfering with the swing of the lever mechanism 5, and on the other hand, it is also convenient for the hole-straightening driving cylinder 41 to be externally connected to the first air connection pipe 43 and other pipelines, and it is convenient to perform maintenance, repair and replacement operations on the hole-straightening driving cylinder 41, and the structural design is simple and reasonable.

[0057] See also Figure 2 As shown, in another preferred scheme of this embodiment, a first avoidance position 521 is provided on the side of the second swing arm 52 close to the connection point with the first swing arm 51. When the output end of the whole hole driving cylinder 41 moves forward, the second swing arm 52 swings toward the direction close to the first swing arm 51, and the first avoidance position 521 is used to provide avoidance and accommodation space for the first swing arm 51; a second avoidance position 531 is provided on the side of the third swing arm 53 close to the connection point with the first swing arm 51. When the output end of the whole hole driving cylinder 41 moves forward, the third swing arm 53 swings toward the direction close to the first swing arm 51, and the second avoidance position 531 is used to provide avoidance and accommodation space for the first swing arm 51.

[0058] Example 2

[0059] In another preferred embodiment of the present invention, a specific structural design scheme is disclosed on how a stamping device can implement a material loading process and a material blocking process.

[0060] See also Figure 1 and Figure 4 As shown, in the technical solution of this embodiment, the stamping equipment with automatic hole-sizing function also includes a feeding mechanism, which includes a vibration plate 6 and a feeding plate 61. The feeding plate 61 is provided with a groove structure, which forms a feeding channel, one end of which is connected to the vibration plate 5, and the other end of which is located adjacent to the hole-sizing station 111. Specifically, the vibration plate 6 is used to place product workpieces, and the feeding channel formed on the feeding plate 61 is used to connect the vibration plate 6 and the hole-sizing station 111, so that the product workpieces are sequentially transported to the hole-sizing station 111 under the vibration of the vibration plate 6, completing the feeding process of the product workpieces.

[0061] See also Figure 4 As shown, in the technical solution of this embodiment, in a preferred solution of this embodiment, the stamping equipment with automatic hole-sizing function also includes a material blocking mechanism 7, which includes a material blocking cylinder 72 and a blocking needle 73, and the blocking needle 73 is connected to the output end of the material blocking cylinder 72. The material blocking cylinder 71 is used to drive the blocking needle 72 to move between the feeding channel of the feeding plate 61 and the hole-sizing station 111. At this time, under the blocking effect of the blocking needle 72, the product workpiece of the feeding channel cannot enter the hole-sizing station 111 from its outlet, thereby determining that only one product workpiece can enter the hole-sizing station 111. Specifically, see Figure 4 As shown, the material blocking cylinder 71 is connected to a second air connecting pipe 73, which is used as a pipeline connecting the material blocking cylinder 71 and the air source, and transports compressed air from the air source to the material blocking cylinder 71 to drive the output end of the material blocking cylinder 71 to reciprocate in the horizontal direction.

[0062] Example 3

[0063] In another preferred embodiment of the present invention, a specific structural design scheme is disclosed on how a stamping device can realize a material transfer process and a material unloading process.

[0064] See also Figure 1 and Figure 4As shown, in the technical solution of this embodiment, the stamping equipment with automatic hole-sizing function also includes a material shifting mechanism 8, which includes a material shifting cylinder 81 and a gripper 82. The gripper 82 is connected to the output end of the material shifting cylinder 81. A long groove connected to the hole-sizing station 111 is provided on the first mounting plate 11. The gripper 82 is located in the long groove, and under the driving force of the output end of the material shifting cylinder 81, the gripper 82 can perform linear reciprocating motion in the long groove. Specifically, when the output end of the material shifting cylinder 81 drives the gripper 82 to move forward and moves its end to a position adjacent to the hole-sizing station 111, the end of the gripper 82 can position the product workpiece so that it is accurately located at the hole-sizing station 111, completing the positioning process. For more details, see Figure 4 As shown, the material moving mechanism 8 is connected to a third air connecting pipe 83, which is used as a pipeline connecting the material moving mechanism 8 and the air source to transport compressed air from the air source to the material moving mechanism 8 to drive the output end of the material moving mechanism 8 to reciprocate in the horizontal direction.

[0065] See also Figure 4 As shown, in a preferred solution of this embodiment, the stamping equipment with automatic hole-sizing function further includes a blanking plate 9, which is tilted and arranged adjacent to the second mounting plate 12. A groove structure is provided on the blanking plate 9, and the groove structure forms a blanking channel. The long groove is provided with a blanking station 112, and the upper end of the blanking channel is connected to the blanking station 112. Specifically, after the hole is sizing is completed, the product workpiece is moved from the hole sizing station 111 to the blanking station 112 under the action of the material transfer mechanism 8, and the blanking process of the product workpiece is completed through the blanking channel of the blanking plate 9.

[0066] In another preferred embodiment of the present invention, an air inlet is provided at one end of the gripper 82 away from the material transfer cylinder 81, and an air inlet passage connected to the air inlet is provided inside the gripper 82. Figure 4 As shown, the material transfer cylinder 81 is also connected to a fourth air connecting pipe 84, which is used as a pipeline connecting the material transfer cylinder 81 and another air source, and is used to form a negative pressure in the suction channel inside the gripper 82 through the suction force of another air source, thereby adsorbing and fixing the product workpiece, completing the backward shifting operation, and moving the product workpiece to the blanking station 112.

[0067] In summary, based on the solutions of the above embodiments, the working process of the punching equipment with automatic hole-sizing function of the present invention is as follows:

[0068] 1. Loading process: The vibrating plate 6 of the loading mechanism arranges the product workpieces in a certain regular manner, moves downward along the loading channel of the loading plate 61, and performs the loading process in sequence;

[0069] 2. Material blocking process: the material blocking cylinder 71 of the material blocking mechanism 7 drives the blocking needle 72 to move forward or retract. When the blocking needle 72 moves forward, it blocks the outlet of the feeding channel, thereby determining that only one product workpiece can enter the hole-forming station 111;

[0070] 3. Positioning process: The material transfer cylinder 82 of the material transfer mechanism 8 drives the gripper 82 to move forward to position the product workpiece so that it is accurately located at the hole filling station.

[0071] 4. Hole shaping process: The hole shaping driving cylinder 41 of the hole shaping driving mechanism 4 drives the hole shaping punch 2 to descend to the hole shaping station 121 by means of the lever mechanism 5 and the slider mechanism 3, thereby completing the punching and shaping operation on the inner hole of the product workpiece.

[0072] 5. Blanking process: After the shaping is completed, the hole punch 2 moves up to the initial position, and the material transfer cylinder 81 drives the gripper 82 to move the product workpiece backward to the blanking station 112 by using negative pressure, and finally slides down through the blanking channel of the blanking plate 9.

[0073] 6. Reset process: After the product workpiece falls, the material transfer cylinder 8 drives the gripper 82 to reset forward to the positioning position, and the material blocking cylinder 7 drives the blocking needle 72 to retract, waiting for the next product workpiece to enter the hole filling station.

[0074] In this way, the automatic hole-filling operation on multiple product workpieces can be completed continuously. The structural design is simple and reasonable, and the operation is easy.

[0075] In summary, in the scheme provided by the present invention, the stamping equipment converts the horizontal movement of the output end of the hole-screwing driving mechanism 4 into the up and down movement of the hole-screwing punch 2 through the sliding mechanism 3 and the lever structure 5, thereby realizing the continuous hole-screwing operation on the product workpiece. Compared with the traditional method of directly connecting the cylinder to the punch to drive the stamping, the present invention does not need to set the hole-screwing driving cylinder 41 and its output end, and the hole-screwing punch 2 in the same straight line, thereby reducing the height of the stamping equipment in the vertical direction and reducing the space occupied. In addition, by setting the lever mechanism 5 and using the lever principle to amplify the input force of the hole-screwing driving cylinder 41, the driving force of the hole-screwing driving cylinder 41 can be reduced under the demand of the same impulse, avoiding structural fracture caused by factors such as excessive impulse, and the lever mechanism 5 and the slider mechanism 3 can effectively reduce the vibration and impact phenomenon during the transmission process, so that the output end of the hole-screwing driving cylinder 41 and the hole-screwing punch 2 are not prone to structural damage, thereby improving the stability and life of the equipment. In addition, by setting a fixed seat 31 and a slider 32 in the movement direction of the hole punch 2, a transmission effect is achieved while also having a guiding function, reducing the output burden of the hole driving cylinder 41, and no other guiding structures need to be set, which significantly reduces costs.

[0076] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical schemes composed of any combination of the above-mentioned technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications are also regarded as the protection scope of the present invention.

Claims

1. A punching equipment with automatic hole-sizing function, characterized in that: include: A machine base, wherein a first mounting seat and a second mounting seat are provided on the machine base, and a hole-forming station is provided on the first mounting seat; A hole-forming punch and a sliding mechanism, wherein the sliding mechanism comprises a fixed seat fixedly mounted on the second mounting seat and a sliding block slidably connected to the fixed seat, the hole-forming punch and the sliding block are fixedly connected, and the hole-forming punch is located above the hole-forming station; A hole-filling driving mechanism, the hole-filling driving mechanism includes a hole-filling driving cylinder installed on the second mounting seat, and the hole-filling driving cylinder drives the slider to move up and down through the lever mechanism, thereby driving the hole-filling punch to descend from an initial position to the hole-filling station or move from the hole-filling station to the initial position.

2. The punching equipment with automatic hole-sizing function according to claim 1, characterized in that: The lever mechanism includes a first swing arm, a second swing arm and a third swing arm, wherein one end of the first swing arm, the second swing arm and the third swing arm are rotatably connected, the other end of the first swing arm is rotatably connected to the output end of the whole hole driving cylinder, the other end of the second swing arm is rotatably connected to the slider, and the other end of the third swing arm is rotatably connected to the second mounting seat.

3. The punching equipment with automatic hole-sizing function according to claim 2, characterized in that: The second swing arm and the third swing arm are located on one side of the second mounting seat, and the whole hole driving cylinder is arranged on the other side of the second mounting seat. The second mounting seat is provided with an opening, and the output end of the whole hole driving cylinder passes through the opening and is rotatably connected to the first swing arm.

4. The punching equipment with automatic hole-sizing function according to claim 2, characterized in that: A first avoidance position is provided on a side of the second swing arm close to the connection point with the first swing arm, and a second avoidance position is provided on a side of the third swing arm close to the connection point with the first swing arm.

5. The punching equipment with automatic hole-sizing function according to claim 1, characterized in that: The hole-forming punch comprises a punch seat and an ejector pin located below the punch seat. The top of the punch seat is fixedly connected to the slider, and the ejector pin is arranged opposite to the hole-forming station.

6. The punching equipment with automatic hole-sizing function according to claim 1, characterized in that: The stamping equipment with automatic hole-sizing function also includes a feeding mechanism, which includes a vibration disk and a feeding plate. The feeding plate is provided with a feeding channel, one end of the feeding channel is connected to the vibration disk, and the other end is located at an adjacent position to the hole-sizing station.

7. The punching equipment with automatic hole-sizing function according to claim 6, characterized in that: The stamping equipment with automatic hole-sizing function also includes a material blocking mechanism, which includes a material blocking cylinder and a blocking needle connected to the output end of the material blocking cylinder, and the material blocking cylinder is used to drive the blocking needle to move between the feeding channel and the hole-sizing station.

8. The punching equipment with automatic hole-sizing function according to claim 1, characterized in that: The stamping equipment with automatic hole-sizing function also includes a material moving mechanism, which includes a material moving cylinder and a gripper connected to the output end of the material moving cylinder. A long groove connected to the hole-sizing station is provided on the first mounting plate, and the gripper is located in the long groove.

9. The punching equipment with automatic hole-sizing function according to claim 8, characterized in that: The stamping equipment with automatic hole-sizing function also includes a blanking plate, which is obliquely arranged at an adjacent position of the second mounting plate. A blanking channel is provided on the blanking plate, and a blanking station is provided on the long groove. The upper end of the blanking channel is connected to the blanking station.

10. The punching equipment with automatic hole-sizing function according to claim 9, characterized in that: An air suction port is arranged at one end of the gripper away from the material transfer cylinder, and an air suction channel connected to the air suction port is arranged inside the gripper.

Images