Stamping equipment and process method for integrally forming metal handle

Abstract

The present application relates to a kind of stamping equipment of metal handle, more particularly to a kind of stamping equipment and process method of metal handle integrated forming production;Including: installation platform;Drive device includes first hydraulic telescopic rod, second hydraulic telescopic rod is arranged in the output end of first hydraulic telescopic rod;Lower punch die;Upper punch die;Upper punch die includes: mounting plate;Upper die;Fixed plate;Four sliding hollow rods are fixedly arranged on fixed plate;Four rotary drill bits, rotary drill bit is rotatably arranged in sliding hollow rod, and first gear is provided on rotary drill bit;Synchronous chain is engaged on four first gears;Driving motor is used to drive one rotary drill bit;The driving motor of the present application drives four drill bits to rotate, so that rotary rotary drill bit is pressed down, while the hole is opened in the both sides of handle, and mounting hole is opened, and only one motor is driven, can ensure that rotary drill bit rotates synchronously, so that when drilling is completed, there is no hole not completed.

Description

Technical Field

[0001] This invention relates to the field of stamping equipment for metal handles, and more particularly to stamping equipment and process methods for integral molding of metal handles. Background Technology

[0002] The production process of metal handles includes raw material procurement, material preparation, machining and forming, surface treatment, assembly, quality inspection, packaging, and transportation. First, raw metal materials are procured, prepared, and then machined and shaped. Next, surface treatment is performed to improve appearance quality and corrosion resistance. Following this, assembly and quality inspection are conducted to ensure the product meets standards. Finally, the finished products are packaged and prepared for shipment to sales channels or end users. The entire process requires precise craftsmanship and technology to ensure the final product's quality and performance meet expected levels.

[0003] The production of metal handles includes the following steps:

[0004] Material preparation: After obtaining the raw material (round tube), it needs to be prepared. This may include steps such as cutting, trimming, and heat treatment to ensure that the raw material meets manufacturing requirements and has the required dimensions and shape;

[0005] Processing and shaping: In this stage, the metal raw materials are fed into machining equipment for processing and shaping to make them into the desired shape of the handle.

[0006] Installation and processing: Drill mounting holes for the handle, then perform rust-proof heat treatment, and then grind and polish it.

[0007] The above production steps are too cumbersome, especially the drilling process which requires repositioning and is prone to errors.

[0008] Therefore, there is an urgent need to provide an improved technical solution to solve the above-mentioned technical problems. Summary of the Invention

[0009] The purpose of this invention is to address the aforementioned technical problems by providing a stamping equipment and process method for integrally molding metal handles with mounting holes.

[0010] In view of this, the present invention provides a stamping equipment for integral molding of metal handles, characterized in that it includes:

[0011] Installation platform;

[0012] A drive unit is mounted on an installation platform and includes a first hydraulic telescopic rod and a second hydraulic telescopic rod located at the output end of the first hydraulic telescopic rod.

[0013] The lower stamping die is mounted on the mounting platform.

[0014] The upper stamping die is installed on the lower end of the first hydraulic telescopic rod;

[0015] The upper stamping die includes:

[0016] Mounting plate, the mounting plate is installed on the lower end of the first hydraulic telescopic rod;

[0017] The upper mold is set on the bottom surface of the mounting plate;

[0018] A fixing plate is installed on the lower end of the second hydraulic telescopic rod;

[0019] Four sliding hollow rods are symmetrically arranged in pairs on both sides of the mounting plate and fixedly mounted on the fixed plate.

[0020] Four rotary drill bits are rotatably mounted inside a sliding hollow rod, and a first gear is provided on each rotary drill bit.

[0021] Synchronous chain, which meshes with four first gears;

[0022] A drive motor is mounted on a fixed plate and is used to drive a rotating drill bit.

[0023] Furthermore, it also includes a hydraulic control circuit for controlling the first hydraulic telescopic rod and the second hydraulic telescopic rod. The hydraulic control circuit includes an oil supply line, an oil return line, a first Y-type three-position four-way solenoid valve, a second Y-type three-position four-way solenoid valve, and a three-position two-way solenoid valve.

[0024] The first hydraulic telescopic rod includes a first rod-type chamber and a first rodless chamber;

[0025] The second hydraulic telescopic rod includes a second rod-type chamber and a second rodless chamber;

[0026] A first oil pipe is provided between the first rodless chamber and the first Y-type three-position four-way solenoid valve;

[0027] A second oil pipe is provided between the second rodless chamber and the second Y-type three-position four-way solenoid valve;

[0028] A third oil pipe is provided between the first rodless chamber and the second Y-type three-position four-way solenoid valve;

[0029] A three-position two-way solenoid valve is installed on the first oil pipe;

[0030] A one-way valve is installed on the third oil pipe, with the flow direction towards the first rodless chamber.

[0031] Furthermore, it also includes a cutting assembly for cutting the blank steel pipe;

[0032] The truncation components include:

[0033] A cutting blade is located on one side of the lower end face of the mounting plate;

[0034] The limiting groove is located on the other side of the mounting plate;

[0035] A limiting plate is installed on the lower stamping die and can be inserted into a limiting groove;

[0036] A cut-off groove is provided on the lower stamping die, and a cutting blade can be inserted into the cut-off groove.

[0037] Furthermore, the lower end face of the cutting blade is provided with an inclined surface facing the opposite direction to the limiting plate.

[0038] Furthermore, it also includes:

[0039] At least one limiting sliding hole is provided, and the limiting sliding hole is set on the fixed plate;

[0040] The limiting slide rod is located at the lower end of the first hydraulic telescopic rod. The lower end of the limiting slide rod is fixed to the mounting plate, and the limiting slide rod is slidably positioned within the limiting slide hole.

[0041] Furthermore, at least two bearings are provided between the sliding hollow rod and the rotating drill bit, and at least one bearing is provided on the upper and lower sides of the first gear;

[0042] The sliding hollow rod is equipped with:

[0043] The groove is cut at the position where the synchronizing chain meshes with the first gear.

[0044] Furthermore, the drive unit also includes:

[0045] Electric motor;

[0046] The hydraulic pump is driven by an electric motor and provides power to the hydraulic control circuit.

[0047] Furthermore, the upper end face of the lower stamping die is provided with a drill hole to accommodate a rotating drill bit.

[0048] Furthermore, the lower stamping die includes:

[0049] The lower mold cavity has a roller on each of the two sides of the top of the lower mold cavity;

[0050] The pressing module is slidably disposed within the lower mold cavity;

[0051] A reset spring is installed between the pressing module and the bottom surface of the lower mold cavity.

[0052] Furthermore, it also includes a support rail, which is mounted on the mounting platform and includes:

[0053] Several support rollers, the side circumferential surfaces of the support rollers are curved.

[0054] Furthermore, it also includes:

[0055] The preheating ring is spiral-shaped and has two joint rods at both ends.

[0056] Two sliding parts are slidably mounted on the mounting platform. Each sliding part has a connecting hole, and two connector rods are each installed in the connecting hole.

[0057] The power supply is electrically connected to the preheating ring.

[0058] This invention provides a process method for stamping equipment used in the one-piece molding of metal handles, characterized by comprising:

[0059] The control system includes:

[0060] Control unit;

[0061] The pressure sensor is located below the upper mold.

[0062] The process includes the following steps:

[0063] L0, the control unit starts the motor to control the hydraulic pump to provide power to the hydraulic control pipeline;

[0064] L1. Place the steel pipe to be pressed on the lower stamping die and make the end of the steel pipe abut against the limiting plate;

[0065] L2, the control unit controls the first Y-type three-position four-way solenoid valve and the three-position two-way solenoid valve to change the oil circuit and move the first hydraulic telescopic rod downward;

[0066] L3. Cut off the excess steel pipe with the cutting blade to make the steel pipe the appropriate length, and then stamp the steel pipe to be pressed with a plastic mold.

[0067] L4. When the pressure of the plastic mold between the upper stamping die and the lower stamping die reaches the pressure value that makes the steel pipe form, the pressure sensor feeds the signal back to the control unit. The control unit then controls the second Y-type three-position four-way solenoid valve to change the oil circuit, so that the second hydraulic telescopic rod moves downward. At the same time, the control unit starts the drive motor to make the rotary drill bit rotate and open mounting holes for mounting the handle at both ends.

[0068] L5. During drilling, the pressure value measured by the pressure sensor is unstable under the action of vibration. When the borehole is drilled through, the pressure value tends to stabilize. After the pressure value stabilizes for 2 seconds, the control unit simultaneously controls the first Y-type three-position four-way solenoid valve, the second Y-type three-position four-way solenoid valve and the three-position two-way solenoid valve to change their respective oil circuits, so that the first hydraulic telescopic rod and the second hydraulic telescopic rod move upward.

[0069] L6. Remove the finished handle.

[0070] The beneficial effects of this invention are:

[0071] 1. This invention controls the first hydraulic telescopic rod to move downwards via a drive device, causing the upper stamping die to engage with the lower stamping die to shape the steel pipe. When the predetermined forming pressure is reached, the second hydraulic telescopic rod is activated, causing its body to move downwards. Simultaneously, the drive motor is activated, driving four drill bits to rotate. The rotating drill bits press down, and mounting holes are made on both sides of the handle. Since only one motor is used for driving, the rotating drill bits can be ensured to rotate synchronously, preventing the situation where a hole is not completed when drilling is finished.

[0072] 2. In this invention, a portion of the hydraulic oil is input into the first rodless chamber through the third oil pipe, which increases the pressure of the first hydraulic telescopic rod. Since the drill bit will generate greater vibration when drilling, greater pressure needs to be applied to make the handle more fixed and stable.

[0073] 3. This invention adjusts the length of the preheating ring by sliding the sliding part, thereby adjusting the distance between two adjacent rings of the spiral preheating ring, and thus changing the ring density of the preheating ring. When the distance between two adjacent rings is smaller, the heating efficiency is higher and the heating range is smaller; when the distance between two adjacent rings is larger, the heating efficiency is lower and the heating range is larger. Since the bending deformation at both ends of the handle is larger, requiring rapid heating over a small area, while the bending distance in the middle of the handle is longer, requiring a smaller bending amplitude, the length of the preheating ring can be adjusted according to different needs. Attached Figure Description

[0074] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0075] Figure 2 This is a schematic diagram of the main structure of the present invention;

[0076] Figure 3 This is a schematic cross-sectional view of the lower stamping die of the present invention;

[0077] Figure 4 This is a schematic diagram of the upper stamping die of the present invention;

[0078] Figure 5This is a schematic diagram of the hydraulic control circuit of the present invention;

[0079] Figure 6 for Figure 2 Schematic diagram of the cross-sectional structure of region A in the middle;

[0080] Figure 7 This is a schematic diagram of the sliding part of the preheating ring of the present invention;

[0081] Figure 8 This is a schematic diagram of the supporting roller structure of the present invention;

[0082] Figure 9 for Figure 4 A schematic diagram of the structure of region B in the middle.

[0083] The markings in the diagram are as follows:

[0084] 1. Mounting platform; 2. First hydraulic telescopic rod; 3. Second hydraulic telescopic rod; 4. Lower stamping die; 5. Upper stamping die; 6. Hydraulic control circuit; 501. Mounting plate; 502. Upper die; 503. Fixing plate; 504. Sliding hollow rod; 505. Rotary drill bit; 506. Synchronous chain; 507. Gear; 508. Drive motor; 601. Oil supply line; 602. Oil return line; 603. First Y-type three-position four-way solenoid valve; 604. Second Y-type three-position four-way solenoid valve; 605. Three-position two-way solenoid valve; 606. First rod 607. First rodless cavity; 608. Second rod cavity; 609. Second rodless cavity; 610. First oil pipe; 611. Second oil pipe; 612. Third oil pipe; 613. One-way valve; 7. Cutting blade; 8. Limiting groove; 9. Limiting plate; 10. Cutting groove; 11. Limiting sliding hole; 12. Limiting sliding rod; 13. Bearing; 14. Slotting; 15. Drilling; 401. Lower mold cavity; 402. Lower pressing module; 403. Return spring; 16. Support roller; 17. Preheating ring; 18. Connector rod; 19. Sliding part; 20. Pressure sensor. Specific Implementation

[0085] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0086] Example 1:

[0087] This embodiment provides a stamping equipment for integral molding of metal handles, characterized in that it includes:

[0088] Installation platform 1;

[0089] The drive device is mounted on the mounting platform 1 and includes a first hydraulic telescopic rod 2 and a second hydraulic telescopic rod 3 located at the output end of the first hydraulic telescopic rod 2.

[0090] The lower stamping die 4 is mounted on the mounting platform 1;

[0091] Upper stamping die 5 is installed on the lower end of the first hydraulic telescopic rod 2;

[0092] The upper stamping die 5 includes:

[0093] Mounting plate 501: Mounting plate 501: is installed on the lower end of the first hydraulic telescopic rod 2;

[0094] Upper mold 502 is set on the bottom surface of mounting plate 501;

[0095] Fixing plate 503 is installed on the lower end of the second hydraulic telescopic rod 3;

[0096] Four sliding hollow rods 504 are symmetrically arranged in pairs on both sides of the mounting plate 501 and fixedly mounted on the fixing plate 503.

[0097] Four rotary drill bits 505 are rotatably disposed inside a sliding hollow rod 504, and a first gear 507 is provided on each rotary drill bit 505.

[0098] Synchronous chain 506 meshes with four first gears 507;

[0099] A drive motor 508 is mounted on a fixed plate 503 and is used to drive a rotary drill bit 505.

[0100] The mounting platform 1 has various holes for mounting various parts, which are opened according to the specific location and are not shown in the figure. The driving device includes a first hydraulic telescopic rod 2. The first and second hydraulic telescopic rods 3 are divided into cylinders and rods. The rods of the first and second hydraulic telescopic rods 3 are both set downwards, and the cylinder of the second hydraulic telescopic rod 3 is installed at the lower end of the rod of the first hydraulic telescopic rod 2. The bottom surface of the lower stamping die 4 has an outer peripherally extending extension fixing plate 503 for mounting the lower stamping die 4 on the mounting platform 1. The extension fixing plate 503 has several holes for fixing. The upper stamping die 5 and When the lower stamping die 4 is snapped together, it forms a mold cavity, the shape of which is the same as the handle shape; the upper stamping die 5 includes: a mounting plate 501, an upper die 502, a fixing plate 503, four sliding hollow rods 504, four rotary drill bits 505, a synchronous chain 506, and a drive motor 508; the mounting plate 501 is fixed to the lower end of the first hydraulic telescopic rod 2 by bolts, and the upper die 502 is installed on the bottom surface of the mounting plate 501. The upper die 502 and the mounting plate 501 can be fixedly installed or installed by bolts; the fixing plate 503 is located in the second hydraulic... The lower end of the telescopic rod 3 is fixed with bolts. Four sliding hollow rods 504 are fixed to the bottom of the fixing plate 503. The sliding hollow rods 504 are inserted into holes on the mounting plate 501, and the fixing plate 503 and the sliding hollow rods 504 can slide up and down. Rotatable rotary drill bits 505 are rotatably mounted inside the sliding hollow rods 504. The rotary drill bits 505 are installed inside the sliding hollow rods 504 through a stepped structure and bearings 13. The four rotary drill bits 505 can rotate within the sliding hollow rods 504. A first gear 50 is provided on each rotary drill bit 505. 7. The first gear 507 can be located in the middle of the rotating drill bit 505 or at the top of the drill bit. When the first gear 507 is at the top of the drill bit, the drill bit passes through the fixed plate 503. The synchronous chain 506 meshes with the four first gears 507 simultaneously, so that the four first gears 507 can rotate synchronously. A drive motor 508 is fixedly installed on the fixed plate 503. The output shaft of the drive motor 508 can be directly connected to a rotating drill bit 505 through a coupling, or a second gear 507 that cooperates with the first gear 507 can be installed on the output shaft of the drive motor 508.

[0101] When producing the metal handle, a steel pipe of appropriate size is placed on the lower stamping die 4, between the upper stamping die 5 and the lower stamping die 4. The first hydraulic telescopic rod 2 is controlled by the drive device to move downward, so that the upper stamping die 5 is engaged with the lower stamping die 4 to shape the steel pipe. When the predetermined forming pressure is reached, the second hydraulic telescopic rod 3 is activated, so that the rod of the second hydraulic telescopic rod 3 moves downward. At the same time, the drive motor 508 is activated, so that the drive motor 508 drives the four drill bits to rotate. The rotating drill bit 505 presses down, and holes are opened on both sides of the handle to make mounting holes. Since only one motor is used to drive the handle, it can ensure that the rotating drill bit 505 rotates synchronously, so that when the drilling 15 is completed, there will be no unfinished holes.

[0102] The drilling 15 eliminates the need for further drilling of the handle, and the drilling 15 is accurately positioned. Synchronous control of the rotating drill bit 505 makes the drilling 15 more efficient.

[0103] Example 2:

[0104] This embodiment provides a stamping equipment for integral molding of metal handles, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0105] It also includes a hydraulic control circuit 6 for controlling the first hydraulic telescopic rod 2 and the second hydraulic telescopic rod 3. The hydraulic control circuit 6 includes an oil supply line 601, an oil return line 602, a first Y-type three-position four-way solenoid valve 603, a second Y-type three-position four-way solenoid valve 604 and a three-position two-way solenoid valve 605.

[0106] The first hydraulic telescopic rod 2 includes a first rod-type cavity 606 and a first rodless cavity 607;

[0107] The second hydraulic telescopic rod 3 includes a second rod-type cavity 608 and a second rodless cavity 609;

[0108] A first oil pipe 610 is provided between the first rodless chamber 607 and the first Y-type three-position four-way solenoid valve 603;

[0109] A second oil pipe 611 is provided between the second rodless chamber 609 and the second Y-type three-position four-way solenoid valve 604;

[0110] A third oil pipe 612 is provided between the first rodless chamber 607 and the second Y-type three-position four-way solenoid valve 604;

[0111] A three-position two-way solenoid valve 605 is installed on the first oil pipe 610;

[0112] A one-way valve 613 is provided on the third oil pipe 612, with the flow direction towards the first rodless chamber 607.

[0113] The steel pipe to be pressed is placed on the lower stamping die 4 with its end abutting against the limiting plate 9. The first Y-type three-position four-way solenoid valve 603 and the three-position two-way solenoid valve 605 are controlled to change the oil circuit, causing the first hydraulic telescopic rod 2 to move downward. When the mold pressure between the upper stamping die 5 and the lower stamping die 4 reaches the pressure value required to form the steel pipe, the pressure sensor 20 sends a signal back to the control unit. The control unit then controls the second Y-type three-position four-way solenoid valve 604 to change the oil circuit, causing the second hydraulic telescopic rod 3 to move downward. At this time, part of the hydraulic oil passes through the first... The three oil pipes 612 input into the first rodless chamber 607, making the pressure of the first hydraulic telescopic rod 2 greater. Since the drill bit will generate a large vibration when drilling the hole 15, it is necessary to apply greater pressure to make the handle more fixed and stable. The three-position two-way solenoid valve 605 will not allow oil to be delivered into the first rod chamber 606, causing pressure failure. When the first hydraulic telescopic rod 2 is retracted, the fluid guiding direction of the three-position two-way solenoid valve 605 is reversed. The one-way valve 613 set on the third oil pipe 612 prevents oil from flowing into the second oil pipe 611.

[0114] A differential circuit is provided on each of the two hydraulic telescopic rods to make the rods retract faster.

[0115] Example 3:

[0116] This embodiment provides a stamping equipment for integral molding of metal handles, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0117] It also includes a cutting assembly, which is used to cut the blank steel pipe;

[0118] The truncation components include:

[0119] Cutting blade 7 is located on one side of the lower end face of mounting plate 501;

[0120] Limiting groove 8 is located on the other side of mounting plate 501;

[0121] Limiting plate 9 is set on the lower stamping die 4 and can be inserted into the limiting groove 8;

[0122] Cut-off groove 10 is provided on the lower stamping die 4, and the cutting blade 7 can be inserted into the cut-off groove 10.

[0123] A cutting blade 7 is provided on one side of the lower end face of the mounting plate 501. The cutting blade 7 can be welded to the mounting plate 501 or fixed with bolts. The blade of the cutting blade 7 is made of a high-hardness and high-wear-resistant material to ensure that it can effectively cut steel pipes during the cutting process without easily wearing out. Common materials include:

[0124] High-speed steel (HSS): High-speed steel is a type of steel containing a high proportion of carbon and other alloying elements, possessing excellent hardness and wear resistance. The advantage of using high-speed steel in guillotine cutters lies in their high hardness and good wear resistance, allowing them to maintain a long service life when cutting steel pipes.

[0125] Carbide (hard alloy steel): Carbide is typically a composite material made of metals such as tungsten, cobalt, and titanium, mixed with carbides. It possesses extremely high hardness and wear resistance. Carbide guillotines maintain their sharpness when cutting steel pipes and have a long service life.

[0126] Tungsten carbide: Tungsten carbide is an alloy with extremely high hardness and wear resistance, commonly used in the manufacture of cutting tools requiring high wear resistance. Tungsten carbide guillotines can remain sharp when cutting steel pipes, reducing tool wear.

[0127] On the other side of the mounting plate 501, opposite to the cutting blade 7, there is a limiting groove 8. The limiting groove 8 extends vertically through the mounting plate 501. A limiting plate 9 is provided on the lower stamping die 4, and the upper end face of the limiting plate 9 is arc-shaped. When the mounting plate 501 is pressed down, the limiting plate 9 can be inserted into the limiting groove 8. The cross-section of the limiting plate 9 is the same as the cross-sectional dimension of the limiting groove 8. A cutting groove 10 is provided on the lower stamping die 4, and when the cutting blade 7 is pressed down, the cutting blade 7 is inserted into the cutting groove 10.

[0128] Working principle: When the cutting blade 7 presses down to cut the steel pipe, the limiting plate 9 can abut against the end of the steel pipe, so that the cut steel pipe length is accurate. In addition, the limiting plate 9 and the limiting groove 8 slide together, so that the engagement and positioning between the upper stamping die 5 and the lower stamping die 4 is more accurate, resulting in higher stamping quality. The cutting blade 7 set at the other end directly cuts the steel pipe for blanking, which simplifies the production steps and makes the door handle forming fast and efficient.

[0129] Example 4:

[0130] This embodiment provides a stamping equipment for integral molding of metal handles, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0131] The lower end face of the cutting blade 7 is an inclined surface facing the opposite direction to the limiting plate 9.

[0132] The bevel of the blade at the lower end of the cutting blade 7 is set in the opposite direction to the limiting plate 9. When cutting steel pipe, the cut is smoother, and the bevel pushes the remaining steel pipe outward against it, preventing jamming.

[0133] Example 5:

[0134] This embodiment provides a stamping equipment for integral molding of metal handles, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0135] Also includes:

[0136] At least one limiting sliding hole 11 is provided, and the limiting sliding hole 11 is provided on the fixed plate 503;

[0137] The limiting slide rod 12 is located at the lower end of the first hydraulic telescopic rod 2. The lower end of the limiting slide rod 12 is fixed on the mounting plate 501. The limiting slide rod 12 is slidably disposed in the limiting slide hole 11.

[0138] Limiting sliding holes 11 are formed on the fixed plate 503 and are evenly distributed around the outer circumference of the first hydraulic telescopic rod 2. A limiting sliding rod 12 that cooperates with the limiting sliding holes 11 is provided on the lower end face of the first hydraulic telescopic rod 2. By setting the limiting sliding rod 12 and the limiting sliding holes 11 that cooperate with the limiting sliding rod 12, the sliding structure of the fixed plate 503 on the first hydraulic telescopic rod 2 is made more stable.

[0139] Example 6:

[0140] This embodiment provides a stamping equipment for integral molding of metal handles, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0141] At least two bearings 13 are provided between the sliding hollow rod 504 and the rotary drill bit 505, and at least one bearing 13 is provided on the upper and lower sides of the gear 507 respectively;

[0142] The sliding hollow rod 504 is provided with:

[0143] Slot 14 is located at the meshing position of the synchronous chain 506 and the gear 507.

[0144] At least two bearings 13 are fitted onto the sliding hollow rod 504, and the bearings 13 are positioned between the rotary drill bit 505 and the sliding hollow rod 504. The following are common installation methods for the bearings 13:

[0145] Heat-fitting method: This method utilizes the principle of thermal expansion and contraction. When installing the bearing 13 onto the rotary drill bit 505 or into the sliding hollow rod 504, the rotary drill bit 505 or the bearing 13 is heated to expand it, and then quickly placed into position. After cooling, the bearing 13 will form a tight fit with the rotary drill bit 505 or the sliding hollow rod 504. This method is typically used for larger bearings 13 to reduce friction and stress during installation.

[0146] Cold mounting method: In contrast to the hot mounting method, this method involves cooling the bearing 13 or shaft to a low temperature, causing it to shrink, and then quickly installing it into place. Once it returns to room temperature, the bearing 13 or rotating drill bit 505 will form a tight fit with the surrounding components. This method is typically used for larger bearings 13 to ensure a tight and secure installation.

[0147] Hydraulic installation method: This method uses hydraulic pressure to install bearing 13. Lubricant is typically added between the sliding hollow rod 504 and bearing 13, and then hydraulic pressure is applied to press bearing 13 into the correct position. This ensures that bearing 13 is evenly installed without damaging bearing 13 or the rotary drill bit 505.

[0148] Mortise and tenon installation method: In this method, the fit dimensions between the bearing 13 and the rotary drill bit 505 or the sliding hollow rod 504 are set as mortise and tenon fit, and a tight connection is formed by the outer diameter of the bearing 13 being slightly larger than the shaft hole or the inner diameter of the shaft hole being slightly smaller than the diameter of the rotary drill bit 505.

[0149] Because gear 507 is subjected to lateral tension by synchronous chain 506, if bearing 13 is only installed on the upper or lower side of gear 507, the separation structure of the inner and outer rings of bearing 13 will cause the rotary drill bit 505 to tilt, which will damage bearing 13. Therefore, a gear 507 is installed on the upper and lower sides of gear 507 to make the force evenly distributed, so that the rotary drill bit 505 will not tilt, making bearing 13 less likely to be damaged and extending the service life of rotary drill bit 505. At this time, it is necessary to slide the slot 14 on one side of the hollow rod 504 to allow synchronous chain 506 to mesh with gear 507. The meshing point of gear 507 and synchronous chain 506 is built in to prevent hands or other objects from being caught in the meshing point, making the structure safer, more stable and less prone to damage.

[0150] Example 7:

[0151] This embodiment provides a stamping equipment for integral molding of metal handles, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0152] The drive unit also includes:

[0153] Electric motor;

[0154] The hydraulic pump is driven by an electric motor and provides power to the hydraulic control circuit 6.

[0155] The principle of an electric motor-driven hydraulic pump is to use the rotational motion generated by the electric motor to drive the hydraulic pump. The hydraulic pump compresses the liquid and delivers it to the hydraulic system, thereby generating the required hydraulic energy to achieve various mechanical operations.

[0156] The basic principle of an electric motor-driven hydraulic pump is to convert the rotational motion of the electric motor into the flow of fluid in the hydraulic system, thereby enabling the hydraulic pump to operate. The following are the basic principles of an electric motor-driven hydraulic pump:

[0157] Electric motor: Hydraulic systems typically use an electric motor as the drive source. The electric motor converts electrical energy into mechanical energy, producing rotational motion. The electric motor can be a DC motor or an AC motor, the specific choice depending on the application requirements and design parameters.

[0158] Coupling or Gear 507 Drive: The rotational motion of the electric motor is typically connected to the input shaft of the hydraulic pump via a coupling or gear 507 drive. This ensures that the rotational motion of the electric motor can be effectively transmitted to the hydraulic pump, thereby driving the pump's operation.

[0159] Hydraulic pump: A hydraulic pump is a device that converts mechanical energy into hydraulic energy. It uses the centrifugal force generated by rotational motion to draw in liquid (usually hydraulic oil), compress it, and discharge it into the hydraulic system. Common hydraulic pumps include gear pumps, piston pumps, and vane pumps.

[0160] Pump Working Principle: Different types of hydraulic pumps have different working principles, but their basic functions are similar. Taking the gear 507 pump as an example, it consists of two or more gears 507, which are driven to rotate by the rotation of an electric motor. Liquid is drawn into the space between the gears 507, and as the gears rotate, the liquid is compressed and discharged from the pump body. In this way, the liquid is delivered to the hydraulic system, thereby generating the required hydraulic energy.

[0161] Hydraulic system: The hydraulic energy generated by the hydraulic pump is used to perform various tasks, such as lifting, pushing, and clamping. A hydraulic system typically consists of an oil tank, valves, hydraulic cylinders, and hydraulic motors. These components work together, utilizing the flow and pressure of fluid to achieve mechanical motion.

[0162] Example 8:

[0163] This embodiment provides a stamping equipment for integral molding of metal handles, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0164] The upper end face of the lower stamping die 4 is provided with a drill hole 15 for accommodating the rotary drill bit 505.

[0165] The upper end face of the lower stamping die 4 is provided with a drill hole 15 to accommodate the rotating drill bit 505. The drill hole 15 allows the rotating drill bit 505 to drill deeper, resulting in higher quality drill holes 15 for the handle and preventing the drill from not penetrating.

[0166] Example 9:

[0167] This embodiment provides a stamping equipment for integral molding of metal handles, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0168] The lower stamping die 4 includes:

[0169] The lower mold cavity 401 has a roller on each of the two sides of the top of the lower mold cavity 401;

[0170] The pressing module 402 is slidably disposed within the lower mold cavity 401;

[0171] The reset spring 403 is disposed between the pressing module 402 and the bottom surface of the lower mold cavity 401.

[0172] The lower stamping die 4 is provided with a lower die cavity 401. A roller is provided on each of the two sides of the top of the lower die cavity 401. When the steel pipe is pressed down, it will slide downward. Under the action of the roller, the steel pipe is more likely to be displaced. The roller can make the bending position of the handle more rounded and will not wear. A pressing module 402 is slidably arranged in the lower die cavity 401. A return spring 403 is provided between the pressing module 402 and the bottom surface of the lower die cavity 401. When the handle is pressed, the forming handle is pushed out of the lower die cavity 401 by the pressing module 402. There is no need to remove it manually, which makes it safer.

[0173] Example 10:

[0174] This embodiment provides a stamping equipment for integral molding of metal handles, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0175] It also includes a support rail, which is mounted on the mounting platform 1. The support rail includes:

[0176] Several support rollers 16, the side circumferential surfaces of the support rollers 16 are curved.

[0177] The support guide rail is set on the installation platform 1, and the support guide rail is provided with several pairs of support rods. Support rollers 16 are rotatably set between the support rods, and the side circumferential surface of the support rollers 16 is curved, and the curvature of the curved surface is equal to the curvature of the steel pipe, so that the steel pipe can fit in close contact with the side circumferential surface of the support rollers 16. By setting the support rollers 16, the steel pipe is transported in a straight line, making the steel pipe transport more stable and preventing the steel pipe from shifting position, thereby improving the pressing quality of the handle.

[0178] Example 11:

[0179] This embodiment provides a stamping equipment for integral molding of metal handles, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0180] Also includes:

[0181] The preheating ring 17 is spiral-shaped and has two connector rods 18 at both ends.

[0182] Two sliding parts 19 are slidably mounted on the mounting platform 1. Each sliding part 19 has a connecting hole, and two connector rods 18 are each disposed in the connecting hole.

[0183] The power supply is electrically connected to the preheating ring 17.

[0184] Preheating stamped parts before stamping offers several advantages. Here are some of the benefits of preheating stamped parts:

[0185] Improving plasticity: Preheating certain metallic materials can improve their plasticity, making them easier to stamp into the desired shape. Preheating reduces the material's hardness, thereby lowering its tensile strength and making it more susceptible to deformation without cracking or breaking.

[0186] Stress Reduction: Preheating reduces internal stress generated during stamping, thereby reducing material deformation and springback after deformation. This helps improve the precision and stability of stamped parts and reduces the risk of cracks caused by stress concentration.

[0187] Improving surface quality: Preheating reduces friction and wear during stamping, thereby reducing surface defects and scratches. This helps improve the surface quality and appearance of stamped parts, reducing the need for subsequent processing steps.

[0188] Improving production efficiency: Preheating can shorten the stamping cycle and processing time because preheated material is easier to deform, requiring less stamping force and energy. This helps improve production efficiency and reduce costs.

[0189] Reduce equipment wear: Preheating can reduce wear and damage to stamping equipment because preheated materials are easier to process, reducing the impact and friction of the equipment on the materials.

[0190] The preheating ring 17 is arranged in a spiral shape and is typically made of heat-resistant alloys or other high-temperature durable materials to ensure it can withstand high-temperature environments without damage. Common materials include stainless steel, cast iron, and nickel-based alloys. The preheating ring 17 usually contains heating elements, such as resistance wires, electric heating plates, or electromagnetic heating coils, to provide the required heating energy. These heating elements are typically distributed inside the preheating ring 17 to uniformly heat the material to be processed. To prevent heating energy loss and improve preheating efficiency, the preheating ring 17 is usually covered with an insulating layer around the heating elements, such as ceramic fibers, ceramic coatings, or graphite. These insulating materials can reduce heat conduction and loss, improving the preheating effect. To ensure that the preheating ring 17 can stably provide the required preheating temperature, a temperature control system, such as a temperature sensor and a PID controller, is usually provided to monitor and regulate the temperature inside the preheating ring 17. Vertically downward connector rods 18 are provided at both ends of the spiral shape of the preheating ring 17, and the connector rods 18 are inserted into the connection holes provided on the sliding part 19. A plate-shaped sliding block is provided at the lower end of the sliding part 19, and the sliding block is inserted into the sliding groove provided on the mounting platform 1. The power supply can be a battery or a power cord, used to power the preheating ring 17 and electrically connect it to the heating element inside the preheating ring 17.

[0191] Working principle:

[0192] By sliding the sliding part 19, the length of the preheating ring 17 is adjusted, thereby adjusting the distance between two adjacent rings of the spiral preheating ring 17, thus changing the ring density of the preheating ring 17. When the distance between two adjacent rings is smaller, the heating efficiency is higher and the heating range is smaller. When the distance between two adjacent rings is larger, the heating efficiency is lower and the heating range is larger. Since the bending deformation at both ends of the handle is large, it requires rapid heating in a small area, while the bending distance in the middle of the handle is long and requires a small bending amplitude, the length of the preheating ring 17 can be adjusted according to different needs. An electric telescopic rod with a control system can be set to control the sliding part 19 and control the heating time of preheating rings 17 of different lengths.

[0193] Example 12:

[0194] This embodiment provides a process method for stamping equipment to produce one-piece metal handles, which has the following technical features.

[0195] include:

[0196] The control system includes:

[0197] Control unit;

[0198] Pressure sensor 20 is located below the upper mold 502;

[0199] The process includes the following steps:

[0200] L0, the control unit starts the motor to control the hydraulic pump to provide power to the hydraulic control pipeline;

[0201] L1. Place the steel pipe to be pressed on the lower stamping die 4 and make the end of the steel pipe abut against the limiting plate 9;

[0202] L2, the control unit controls the first Y-type three-position four-way solenoid valve 603 and the three-position two-way solenoid valve 605 to change the oil circuit and make the first hydraulic telescopic rod 2 move downward;

[0203] L3 and cutting blade 7 cut off the excess steel pipe to make the steel pipe the appropriate length, and then the steel pipe to be pressed is stamped with a plastic mold.

[0204] L4. When the pressure of the plastic mold between the upper stamping die 5 and the lower stamping die 4 reaches the pressure value that makes the steel pipe form, the pressure sensor 20 feeds the signal back to the control unit. The control unit then controls the second Y-type three-position four-way solenoid valve 604 to change the oil circuit, so that the second hydraulic telescopic rod 3 moves downward. At the same time, the control unit starts the drive motor 508 to make the rotary drill bit 505 rotate and open mounting holes for mounting the handle at both ends.

[0205] L5. When drilling hole 15, the pressure value measured by pressure sensor 20 is unstable under the action of vibration. When drilling hole 15 is completed, the pressure value tends to stabilize. After the pressure value stabilizes for 2 seconds, the control unit simultaneously controls the first Y-type three-position four-way solenoid valve 603, the second Y-type three-position four-way solenoid valve 604 and the three-position two-way solenoid valve 605 to change their respective oil circuits, so that the first hydraulic telescopic rod 2 and the second hydraulic telescopic rod 3 move upward.

[0206] L6. Remove the finished handle.

[0207] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms fall within the scope of protection of this application.

Claims

1. A stamping equipment for integrally forming metal handles, characterized in that, include: Installation platform (1); The drive device is mounted on the mounting platform (1) and includes a first hydraulic telescopic rod (2) and a second hydraulic telescopic rod (3) located at the output end of the first hydraulic telescopic rod (2). The lower stamping die (4) is set on the mounting platform (1); Upper stamping die (5) is installed on the lower end of the first hydraulic telescopic rod (2); The upper stamping die (5) includes: Mounting plate (501): Mounting plate (501) is installed on the lower end of the first hydraulic telescopic rod (2); Upper mold (502) is set on the bottom surface of mounting plate (501). A fixing plate (503) is provided on the lower end of the second hydraulic telescopic rod (3); Four sliding hollow rods (504) are symmetrically arranged on both sides of the mounting plate (501) and fixed on the fixing plate (503). Four rotary drill bits (505) are rotatably disposed inside a sliding hollow rod (504), and gears (507) are provided on the rotary drill bits (505); Synchronous chain (506), which meshes with four gears (507); A drive motor (508) is mounted on a fixed plate (503) and is used to drive a rotary drill bit (505); It also includes a hydraulic control circuit (6) for controlling the first hydraulic telescopic rod (2) and the second hydraulic telescopic rod (3). The hydraulic control circuit (6) includes an oil supply line (601), an oil return line (602), a first Y-type three-position four-way solenoid valve (603), a second Y-type three-position four-way solenoid valve (604), and a three-position two-way solenoid valve (605). The first hydraulic telescopic rod (2) includes a first rod chamber (606) and a first rodless chamber (607); The second hydraulic telescopic rod (3) includes a second rod chamber (608) and a second rodless chamber (609); A first oil pipe (610) is provided between the first rodless chamber (607) and the first Y-type three-position four-way solenoid valve (603); A second oil pipe (611) is provided between the second rodless chamber (609) and the second Y-type three-position four-way solenoid valve (604); A third oil pipe (612) is provided between the first rodless chamber (607) and the second Y-type three-position four-way solenoid valve (604); A three-position two-way solenoid valve (605) is installed on the first oil pipe (610); A check valve (613) with a flow direction toward the first rodless chamber (607) is provided on the third oil pipe (612); The lower stamping die (4) includes: The lower mold cavity (401) has a roller on each of the two sides of the top of the lower mold cavity (401); The pressing module (402) is slidably disposed within the lower mold cavity (401); A reset spring (403) is provided between the pressing module (402) and the bottom surface of the lower mold cavity (401). Also includes: The preheating ring (17) is spiral in shape and has two joint rods (18) at both ends; Two sliding parts (19) are slidably mounted on the mounting platform (1). The sliding parts (19) are provided with connecting holes, and two connector rods (18) are each set in the connecting holes. The power supply is electrically connected to the preheating ring (17).

2. The stamping equipment for integral molding of metal handles according to claim 1, characterized in that, It also includes a cutting assembly, which is used to cut the blank steel pipe; The truncation components include: A cutting blade (7) is provided on one side of the lower end face of the mounting plate (501). Limiting groove (8) is provided on the other side of the mounting plate (501). Limiting plate (9) is set on the lower stamping die (4) and can be inserted into the limiting groove (8); Cut-off groove (10) is provided on the lower stamping die (4), and the cutting blade (7) can be inserted into the cut-off groove (10).

3. The stamping equipment for integral molding of metal handles according to claim 2, characterized in that, The lower end face of the cutting blade (7) is an inclined surface facing the opposite direction to the limiting plate (9).

4. The stamping equipment for integral molding of metal handles according to claim 1, characterized in that, Also includes: At least one limiting sliding hole (11) is provided, and the limiting sliding hole (11) is provided on the fixing plate (503); The limiting slide rod (12) is located at the lower end of the first hydraulic telescopic rod (2). The lower end of the limiting slide rod (12) is fixed on the mounting plate (501). The limiting slide rod (12) is slidably located in the limiting slide hole (11).

5. The stamping equipment for integral molding of metal handles according to claim 1, characterized in that, At least two bearings (13) are provided between the sliding hollow rod (504) and the rotary drill bit (505), and at least one bearing (13) is provided on the upper and lower sides of the gear (507); The sliding hollow rod (504) is provided with: Slot (14) is made at the position where the synchronous chain (506) meshes with the gear (507).

6. The stamping equipment for integral forming of metal handles according to claim 2, characterized in that, The drive unit also includes: Electric motor; The hydraulic pump is driven by an electric motor and provides power to the hydraulic control circuit (6).

7. The stamping equipment for integral molding of metal handles according to claim 1, characterized in that, The upper end face of the lower stamping die (4) is provided with a drill hole (15) for accommodating a rotating drill bit (505).

8. The stamping equipment for integral molding of metal handles according to claim 1, characterized in that, It also includes a support rail, which is set on the mounting platform (1). The support rail includes: Several support rollers (16) are provided, and the side circumferential surfaces of the support rollers (16) are curved.

9. A process method for a stamping equipment suitable for the one-piece molding production of a metal handle as described in claim 6, characterized in that, include: The control system includes: Control unit; Pressure sensor (20) is located below the upper mold (502); The process includes the following steps: L0, the control unit starts the motor to control the hydraulic pump to provide power to the hydraulic control pipeline; L1. Place the steel pipe to be pressed on the lower stamping die (4) and make the end of the steel pipe abut against the limiting plate (9); L2, the control unit controls the first Y-type three-position four-way solenoid valve (603) and the three-position two-way solenoid valve (605) to change the oil circuit and make the first hydraulic telescopic rod (2) move downward; L3, the cutting blade (7) cuts off the excess steel pipe to make the steel pipe of appropriate length, and then the steel pipe to be pressed is stamped with a plastic mold. L4. When the pressure of the plastic mold between the upper stamping die (5) and the lower stamping die (4) reaches the pressure value that makes the steel pipe form, the pressure sensor (20) feeds the signal back to the control unit. The control unit then controls the second Y-type three-position four-way solenoid valve (604) to change the oil circuit, so that the second hydraulic telescopic rod (3) moves downward. At the same time, the control unit starts the drive motor (508) to make the rotary drill bit (505) rotate and open mounting holes for mounting the handle at both ends. L5. During drilling (15), the pressure value measured by the pressure sensor (20) is unstable under the action of vibration. When the borehole (15) is drilled through, the pressure value tends to stabilize. After the pressure value stabilizes for 2 seconds, the control unit simultaneously controls the first Y-type three-position four-way solenoid valve (603), the second Y-type three-position four-way solenoid valve (604) and the three-position two-way solenoid valve (605) to change their respective oil circuits, so that the first hydraulic telescopic rod (2) and the second hydraulic telescopic rod (3) move upward. L6. Remove the finished handle.

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