Stamping equipment for metal table and chair machining

Abstract

The utility model belongs to the technical field of table and chair machining, and discloses stamping equipment for metal table and chair machining. A workbench is arranged above the bottom plate, a mounting frame is arranged above the workbench, a hydraulic cylinder is arranged on the mounting frame, a piston rod of the hydraulic cylinder penetrates through the top of the mounting frame, an upper die is arranged at the end of the piston rod of the hydraulic cylinder, and a lower die matched with the upper die is arranged at the top of the workbench. A limiting assembly used for clamping the lower mold is arranged on the workbench, a demolding assembly used for demolding the stamped profile is arranged on the bottom plate, the lower mold is fixed by starting the limiting assembly, the stability in the stamping process is improved, and then the stamping quality is improved. And a worker starts the demolding assembly to demold the stamped metal profile, the state that a workpiece needs to be taken out of the lower mold by means of a tool clamp in the traditional technology is changed, and then the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of table and chair processing, in particular to a punching device for processing metal tables and chairs. Background Art

[0002] In the production of metal desks and chairs, profiles are essential components. This process involves stamping and bending the profiles, then securing them to the tabletop. Professional stamping equipment is essential for this process. Stamping involves applying external forces to sheet metal, strip, tube, or profiles using a press and a die, causing them to plastically deform or separate, thereby creating a workpiece (stamped part) of the desired shape and size.

[0003] The molds of existing stamping equipment are mostly welded directly to the fixed plate when in use. When it is necessary to stamp profiles of different models or specifications, it is rather difficult to install or remove the mold. After the stamping equipment has completed stamping the workpiece, the staff generally need to use a tool clamp to remove the workpiece from the lower mold, which is a rather troublesome and laborious operation. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a stamping device for processing metal tables and chairs.

[0005] The above technical objectives of the present utility model are achieved through the following technical solutions: a stamping equipment for processing metal tables and chairs, comprising a base plate, a workbench is arranged above the base plate, a mounting frame is arranged above the workbench, a hydraulic cylinder is arranged on the mounting frame, the piston rod of the hydraulic cylinder passes through the top of the mounting frame, an upper mold is arranged on the end of the piston rod of the hydraulic cylinder, a lower mold matching the upper mold is arranged on the top of the workbench, a limiting assembly for clamping the lower mold is arranged on the workbench, and a demolding assembly for demolding the stamped profile is arranged on the base plate.

[0006] By adopting the above technical solution, the staff first selects a suitable mold according to the specifications of the metal profile to be stamped, and then fixes the lower mold by starting the limit assembly, which is beneficial to improving the stability during the stamping process and thus improving the stamping quality; the staff places the metal profile on the lower mold and starts the hydraulic cylinder. The hydraulic cylinder drives the upper mold close to the lower mold to complete the stamping of the metal profile. Then the staff starts the hydraulic cylinder again to move the hydraulic cylinder away from the lower mold, and starts the demolding assembly to demold the stamped metal profile, which changes the traditional technology that requires the use of a tool clamp to remove the workpiece from the lower mold, thereby helping to improve work efficiency.

[0007] Furthermore, the limit assembly includes a motor fixed to a side wall of one side of the mounting bracket, a two-way threaded rod rotatably connected between the two side walls of the mounting bracket, a connecting block sleeved on the two-way threaded rod and threadedly connected to the two-way threaded rod, a sliding rod fixedly connected between the two side walls of the mounting bracket, and an insert block fixed to the side wall of one side of the connecting block, the connecting block sleeved on the slide rod and slidingly matched with the slide rod, and two connecting blocks and insert blocks are each provided and symmetrically arranged about the mounting bracket, one side of the two-way threaded rod is fixed to the output shaft end of the motor, the two-way threaded rod is arranged parallel to the slide rod, and mounting blocks are provided on both side walls of the lower mold, and a sliding groove is penetrated on the sides of the two mounting blocks away from each other, and the insert block is plugged into and matched with the sliding groove.

[0008] By adopting the above technical solution, the staff starts the motor, and after the motor starts working, it drives the bidirectional threaded rod to rotate. Since the bidirectional threaded rod is threadedly connected to the connecting block, the sliding rod and the connecting block slide together, thereby limiting the circumferential rotation of the connecting block around the bidirectional threaded rod, so that the two connecting blocks can approach each other in this process, and at the same time drive the two plug blocks to approach each other. The two plug blocks are plugged into and matched with the sliding grooves on the two mounting blocks to complete the clamping of the lower mold, which is beneficial to improve the stability of the metal profile during the stamping process.

[0009] Furthermore, a mounting plate is fixed to the end of the piston rod of the hydraulic cylinder, and a U-shaped plate is provided on the top of the upper mold. The U-shaped plate is slidably matched with the mounting plate, and the outer wall of the mounting plate is fitted with the inner wall of the U-shaped plate. A mounting groove for sliding the piston rod of the hydraulic cylinder is provided on the top of the U-shaped plate. The U-shaped plate and the mounting plate are threadedly connected by a hexagon socket bolt, and the hexagon socket bolt passes through the top of the U-shaped plate and is plug-fitted with the U-shaped plate, and the hexagon socket bolt is threadedly connected to the mounting plate.

[0010] By adopting the above technical solution, the staff first slides the U-shaped plate and the mounting plate together, then passes the hexagon socket bolt through the top of the U-shaped plate and plugs it into the U-shaped plate, and tightens the hexagon socket bolt with a hexagon wrench to make the hexagon socket bolt and the mounting plate threaded connection, which is convenient for the staff to carry out the early installation work and later replacement work of the upper mold.

[0011] Furthermore, the limiting assembly includes a telescopic rod arranged on the top of the base plate, a stripping plate fixed to the upper end of the telescopic rod, and a spring sleeved on the telescopic rod, the outer wall of the stripping plate fits the inner wall of the lower mold, the upper end of the spring is fixed to the bottom of the stripping plate, the lower end of the spring is fixed to the top of the base plate, a through hole is opened on the workbench for the spring to pass through, a mounting hole is opened at the bottom of the lower mold for the spring to pass through, and the stripping plate is located near the top of the lower mold.

[0012] By adopting the above technical solution, the hydraulic cylinder drives the upper mold to squeeze the lower mold, and then squeezes the stripper plate to move toward the bottom plate to complete the stamping of the metal profile. The staff starts the hydraulic cylinder again to move the hydraulic cylinder away from the lower mold. Due to the elasticity of the spring, the stripper plate is driven to gradually move closer to the upper mold, and then the stamped metal profile is pushed out of the lower mold, making it easier for the staff to take it directly. This changes the previous situation where the staff needed to use tool clamps to remove the workpiece from the lower mold, thereby improving work efficiency.

[0013] Furthermore, a placement groove connected to the through hole is provided on the workbench, and the outer wall of the lower mold is fitted with the inner wall of the placement groove.

[0014] By adopting the above technical solution, the setting of the placement groove is conducive to improving the stability of the lower mold on the top of the workbench, and at the same time is conducive to improving the probability of position correspondence between the upper mold and the lower mold.

[0015] Furthermore, a guide rod is fixed to the bottom of the mounting frame, the guide rod passes through the mounting plate and is slidably engaged with the mounting plate, and the lower end of the guide rod is located near the top of the lower mold.

[0016] By adopting the above technical solution, the setting of the guide rod is conducive to improving the accuracy of the movement of the upper mold, and is conducive to reducing the probability of deviation of the metal profile caused by the displacement of the upper mold during the stamping process, thereby improving the stamping quality.

[0017] Furthermore, a silicone pad is provided on each side of the two plug-in blocks that are close to each other.

[0018] By adopting the above technical solution, the provision of the silicone pad is beneficial to reducing the extrusion of the insert block on both sides of the lower mold, thereby helping to increase the service life of the lower mold.

[0019] In summary, the present invention has the following beneficial effects:

[0020] 1. In this application, the staff first selects a suitable mold according to the specifications of the metal profile to be stamped, and then fixes the lower mold by activating the limit assembly, which is conducive to improving the stability during the stamping process and thus improving the stamping quality; the staff places the metal profile on the lower mold and activates the hydraulic cylinder. The hydraulic cylinder drives the upper mold close to the lower mold to complete the stamping of the metal profile. Then the staff activates the hydraulic cylinder again to move the hydraulic cylinder away from the lower mold and activates the demoulding assembly to demould the stamped metal profile. This changes the state in which the traditional technology requires the use of a tool clamp to remove the workpiece from the lower mold, thereby facilitating improved work efficiency;

[0021] 2. In this application, the staff starts the motor, and after the motor starts working, it drives the bidirectional threaded rod to rotate. Since the bidirectional threaded rod is threadedly connected to the connecting block, the sliding rod and the connecting block slide together, thereby limiting the circumferential rotation of the connecting block around the bidirectional threaded rod, so that the two connecting blocks can approach each other during this process, and at the same time drive the two plug blocks to approach each other. The two plug blocks are plugged into and matched with the slide grooves on the two mounting blocks to complete the clamping of the lower mold, which is beneficial to improving the stability of the metal profile during the stamping process;

[0022] 3. In this application, the staff first slides the U-shaped plate and the mounting plate together, then passes the hexagon socket bolt through the top of the U-shaped plate and plugs it into the U-shaped plate, and tightens the hexagon socket bolt with a hexagon wrench to make the hexagon socket bolt and the mounting plate threaded connection, which is convenient for the staff to carry out the early installation work and later replacement work of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0024] Figure 2 This is a schematic cross-sectional structure diagram for highlighting the placement groove in an embodiment of the present utility model;

[0025] Figure 3 yes Figure 2 A magnified schematic diagram of point A in the middle;

[0026] Figure 4 This is a schematic diagram of the structure of an embodiment of the present utility model for highlighting the chute;

[0027] Figure 5 It is a schematic diagram of the exploded structure of an embodiment of the present invention, used to highlight the connection relationship between the mounting plate and the U-shaped plate.

[0028] In the figure: 1. Base plate; 2. Workbench; 21. Through hole; 22. Placement slot; 3. Mounting frame; 31. Hydraulic cylinder; 32. Guide rod; 4. Upper mold; 5. Lower mold; 51. Mounting block; 511. Slide groove; 52. Mounting hole; 6. Limit assembly; 61. Motor; 62. Bidirectional threaded rod; 63. Connecting block; 64. Slide rod; 65. Insert block; 7. Demolding assembly; 71. Telescopic rod; 72. Demolding plate; 73. Spring; 8. Mounting plate; 81. U-shaped plate; 811. Mounting slot; 82. Hexagon socket bolt. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; it is obvious that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0030] like Figure 1-5 As shown, an embodiment of the present application discloses a stamping device for processing metal tables and chairs, including a base plate 1, a workbench 2, a mounting frame 3, an upper mold 4, a lower mold 5, a limiting assembly 6 and a demolding assembly 7.

[0031] The base plate 1 is arranged horizontally, the workbench 2 is arranged above the base plate 1, and the mounting frame 3 is arranged above the workbench 2. A hydraulic cylinder 31 is arranged on the mounting frame 3, and a piston rod of the hydraulic cylinder 31 passes through the top of the mounting frame 3.

[0032] The upper mold 4 is arranged at the end of the piston rod of the hydraulic cylinder 31 , and the lower mold 5 is arranged on the top of the workbench 2 . The lower mold 5 and the upper mold 4 match each other.

[0033] The limit assembly 6 is mounted on the workbench 2 and is used to clamp the lower mold 5. The limit assembly 6 includes a motor 61, a bidirectional threaded rod 62, a connecting block 63, a slide bar 64, and an insert block 65. The motor 61 is fixed to one side wall of the mounting frame 3. The bidirectional threaded rod 62 is rotatably connected between the two side walls of the mounting frame 3. One side of the bidirectional threaded rod 62 is fixed to the output shaft end of the motor 61. The connecting block 63 is mounted on the bidirectional threaded rod 62 and is threadedly connected to the bidirectional threaded rod 62. The slide bar 64 is fixedly connected between the two side walls of the mounting frame 3. The bidirectional threaded rod 62 is arranged parallel to the slide bar 64. The connecting block 63 is mounted on the slide bar 64 and slides with the slide bar 64. The insert block 65 is fixed on the side wall of one side of the connecting block 63. There are two connecting blocks 63 and two insert blocks 65, which are symmetrically arranged about the mounting frame 3. Mounting blocks 51 are provided on both side walls of the lower mold 5. A slide groove 511 is penetrated on the side away from each other of the two mounting blocks 51, and the insert block 65 is plugged into the slide groove 511.

[0034] The demoulding assembly 7 is arranged on the base plate 1 and is used to demould the profile after stamping. The limiting assembly 6 includes a telescopic rod 71, a demoulding plate 72 and a spring 73. The telescopic rod 71 is arranged on the top of the base plate 1, and the demoulding plate 72 is fixed to the upper end of the telescopic rod 71. The outer wall of the demoulding plate 72 is in contact with the inner wall of the lower mold 5, and the demoulding plate 72 is located near the top of the lower mold 5. The spring 73 is sleeved on the telescopic rod 71, the upper end of the spring 73 is fixed to the bottom of the demoulding plate 72, and the lower end of the spring 73 is fixed to the top of the base plate 1. A through hole 21 is provided on the workbench 2 for the spring 73 to pass through, and a mounting hole 52 is provided at the bottom of the lower mold 5 for the spring 73 to pass through.

[0035] The U-shaped plate 81 is screwed to the top of the mold 4 so that the upper mold 4 can be easily installed.

[0036] In order to improve the stability of the lower mold 5 on the top of the workbench 2 and at the same time improve the probability of position correspondence between the upper mold 4 and the lower mold 5, a placement groove 22 connected to the through hole 21 is provided on the workbench 2, and the outer wall of the lower mold 5 is fitted with the inner wall of the placement groove 22.

[0037] In order to improve the accuracy of the movement of the upper mold 4, reduce the probability of deviation of the metal profile caused by the displacement of the upper mold 4 during the stamping process, and thus improve the stamping quality, a guide rod 32 is fixed to the bottom of the mounting frame 3. The guide rod 32 passes through the mounting plate 8 and slides with the mounting plate 8. The lower end of the guide rod 32 is located near the top of the lower mold 5.

[0038] In order to help reduce the extrusion of the insert blocks 65 on both sides of the lower mold 5, and thus help to increase the service life of the lower mold 5, silicone pads are provided on the sides of the two insert blocks 65 that are close to each other (not shown in the figure, silicone pads are existing technology and will not be described in detail here).

[0039] The working principle of a stamping device for processing metal tables and chairs in this embodiment is as follows: the staff first selects a suitable mold according to the specifications of the metal profile to be stamped, and then the staff starts the motor 61. After the motor 61 works, it drives the bidirectional threaded rod 62 to rotate. Since the bidirectional threaded rod 62 is threadedly connected to the connecting block 63, the sliding rod 64 slides with the connecting block 63, thereby limiting the circumferential rotation of the connecting block 63 around the bidirectional threaded rod 62, so that the two connecting blocks 63 can approach each other in this process, and at the same time drive the two plug blocks 65 to approach each other, and the two plug blocks 65 are plugged into and matched with the slide grooves 511 on the two mounting blocks 51 to complete the clamping of the lower mold 5, which is beneficial to improving the metal profile. The stability during the stamping process is improved, thereby improving the stamping quality; the staff places the metal profile on the lower mold 5 and starts the hydraulic cylinder 31. The hydraulic cylinder 31 drives the upper mold 4 to squeeze the lower mold 5, and then squeezes the stripper plate 72 to move toward the bottom plate 1 to complete the stamping of the metal profile. The staff starts the hydraulic cylinder 31 again to move the hydraulic cylinder 31 away from the lower mold 5. Since the spring 73 is elastic, it drives the stripper plate 72 to gradually move closer to the upper mold 4, and then pushes the stamped metal profile out of the lower mold 5, making it convenient for the staff to take it directly, changing the previous state where the staff needed to use tool clamps to remove the workpiece from the lower mold 5, thereby improving work efficiency.

[0040] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A stamping device for processing metal tables and chairs, comprising a base plate (1), a workbench (2) disposed above the base plate (1), and a mounting frame (3) disposed above the workbench (2), wherein: A hydraulic cylinder (31) is provided on the mounting frame (3), a piston rod of the hydraulic cylinder (31) passes through the top of the mounting frame (3), an upper mold (4) is provided at the end of the piston rod of the hydraulic cylinder (31), a lower mold (5) matching the upper mold (4) is provided on the top of the workbench (2), a limiting assembly (6) for clamping the lower mold (5) is provided on the workbench (2), and a demoulding assembly (7) for demoulding the stamped profile is provided on the bottom plate (1).

2. The stamping equipment for processing metal tables and chairs according to claim 1, characterized in that: The limiting assembly (6) comprises a motor (61) fixed on a side wall of one side of the mounting frame (3), a bidirectional threaded rod (62) rotatably connected between the side walls of both sides of the mounting frame (3), a connecting block (63) sleeved on the bidirectional threaded rod (62) and threadedly connected to the bidirectional threaded rod (62), a sliding rod (64) fixedly connected between the side walls of both sides of the mounting frame (3), and an inserting block (65) fixed on a side wall of one side of the connecting block (63), wherein the connecting block (63) sleeved on the sliding rod (64) and threadedly connected to the sliding rod (64) ) slidingly fit, the connecting block (63) and the insert block (65) are both provided with two and are symmetrically arranged about the mounting frame (3), one side of the bidirectional threaded rod (62) is fixed to the output shaft end of the motor (61), the bidirectional threaded rod (62) and the slide rod (64) are arranged in parallel, and mounting blocks (51) are provided on both side walls of the lower mold (5), and a slide groove (511) is provided through the two sides of the mounting blocks (51) away from each other, and the insert block (65) is plugged into and fits with the slide groove (511).

3. The stamping equipment for processing metal tables and chairs according to claim 2, characterized in that: The end of the piston rod of the hydraulic cylinder (31) is fixed with a mounting plate (8), and a U-shaped plate (81) is provided on the top of the upper mold (4). The U-shaped plate (81) and the mounting plate (8) are slidably matched, and the outer wall of the mounting plate (8) is fitted with the inner wall of the U-shaped plate (81). The top of the U-shaped plate (81) is provided with a mounting groove (811) for the sliding of the piston rod of the hydraulic cylinder (31). The U-shaped plate (81) and the mounting plate (8) are threadedly connected by a hexagon socket bolt (82). The hexagon socket bolt (82) passes through the top of the U-shaped plate (81) and is plugged into the U-shaped plate (81). The hexagon socket bolt (82) is threadedly connected to the mounting plate (8).

4. The stamping equipment for processing metal tables and chairs according to claim 3 is characterized by: The limiting assembly (6) comprises a telescopic rod (71) arranged on the top of the base plate (1), a stripping plate (72) fixed to the upper end of the telescopic rod (71), and a spring (73) sleeved on the telescopic rod (71); the outer wall of the stripping plate (72) is in contact with the inner wall of the lower mold (5); the upper end of the spring (73) is fixed to the bottom of the stripping plate (72); the lower end of the spring (73) is fixed to the top of the base plate (1); a through hole (21) is provided on the workbench (2) for the spring (73) to pass through; a mounting hole (52) is provided on the bottom of the lower mold (5) for the spring (73) to pass through; and the stripping plate (72) is located near the top of the lower mold (5).

5. The stamping equipment for processing metal tables and chairs according to claim 4, characterized in that: The workbench (2) is provided with a placement groove (22) communicating with the through hole (21), and the outer wall of the lower mold (5) is fitted with the inner wall of the placement groove (22).

6. The stamping equipment for processing metal tables and chairs according to claim 5, characterized in that: A guide rod (32) is fixed to the bottom of the mounting frame (3), and the guide rod (32) passes through the mounting plate (8) and is slidably engaged with the mounting plate (8), and the lower end of the guide rod (32) is located near the top of the lower mold (5).

7. The stamping equipment for processing metal tables and chairs according to claim 6, characterized in that: A silica gel pad is provided on each side of the two inserting blocks (65) close to each other.

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