Lower die clamping device of numerical control hydraulic plate bending machine

Abstract

The utility model relates to the technical field of clamps, and discloses a numerical control hydraulic plate bending machine lower die clamping device which comprises a supporting table, an adjusting seat arranged above the supporting table and a clamping assembly installed above the adjusting seat, an opening is formed in the upper portion of the adjusting seat, and a sliding seat is arranged at the opening. And the clamping assembly comprises sliding rods in sliding connection with the sliding seats, mounting seats mounted at the other ends of the sliding rods and clamping plates detachably connected with the mounting seats, an adjusting cavity is formed in the adjusting seat, and a movable assembly for driving the sliding rods to slide is mounted in the adjusting cavity. According to the lower die clamping device of the numerical control hydraulic plate bending machine, when the lower die clamping device is used, one electric push rod can drive two clamping plates to move to complete clamping work, and therefore cost is saved; meanwhile, the clamping plates are convenient to disassemble, assemble and replace, and the use range is widened.

Description

Technical Field

[0001] The present application relates to the technical field of clamps, and in particular to a lower die clamping device for a CNC hydraulic sheet metal bending machine. Background Art

[0002] The device used to fix the processing object in the mechanical manufacturing process so that it occupies the correct position to accept construction or inspection is also called a fixture. In a broad sense, any device used to quickly, conveniently and safely install the workpiece in any process of the process can be called a fixture. When the CNC sheet metal bending machine is working, the fixture is needed to clamp the lower die.

[0003] Existing clamps are generally divided into manual clamping, hydraulic, electric or pneumatic clamping. Manual clamping generally uses threaded fastening, which is time-consuming and labor-intensive. The use of hydraulic, electric or pneumatic clamps requires the use of multiple supporting equipment, so the cost is high, and it is inconvenient to replace the clamping plate, and the applicability is low. Utility Model Content

[0004] In order to solve the problem that the existing clamps are generally divided into manual clamping, hydraulic, electric or pneumatic clamping, manual clamping generally uses threaded fastening, which is time-consuming and labor-intensive, and the use of hydraulic, electric or pneumatic clamps requires the use of multiple supporting equipment, so the cost is high, and it is also inconvenient to replace the clamping plate and the applicability is low, the present application provides a CNC hydraulic sheet metal bending machine lower die clamping device.

[0005] The present application provides a CNC hydraulic sheet metal bending machine lower die clamping device adopts the following technical solution:

[0006] A lower die clamping device for a CNC hydraulic sheet metal bending machine comprises a support platform, an adjustment seat arranged above the support platform and a clamping assembly installed above the adjustment seat, an opening is provided above the adjustment seat, and a sliding seat is provided at the opening, the clamping assembly comprises sliding rods slidably connected to the sliding seats, a mounting seat installed at the other end of the sliding rods and a clamping plate detachably connected to the mounting seat, an adjustment cavity is provided inside the adjustment seat, and a movable assembly for driving the sliding rod to slide is installed in the adjustment cavity.

[0007] Preferably, the movable component includes a T-shaped rod installed inside the adjustment cavity and sliding sleeves movably mounted on both ends of the T-shaped rod. One side of the sliding sleeve is movably connected to the inner wall of the adjustment cavity through a first connecting rod, and the other side is movably connected to the sliding rod through a second connecting rod.

[0008] Preferably, a support plate is installed below the support platform, an electric push rod is installed on the support plate, and the bottom end of the T-bar passes through the adjustment cavity and the support platform and extends outside to be connected with the output shaft end of the electric push rod.

[0009] Preferably, a mounting groove matching the splint is provided on one side of the mounting seat, a pull rod is slidably connected to one side of the mounting groove, a pressure plate is provided in the pull rod extending into the mounting groove, and a spring is sleeved on the outside, and both ends of the spring are respectively connected to the pressure plate and the inner wall of the mounting groove.

[0010] Preferably, a rubber pad is installed on the inner wall of the installation groove.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The lower die clamping device of the CNC hydraulic sheet metal bending machine realizes an electric push rod when in use, which can drive two clamping plates to move and complete the clamping work, thereby saving costs; at the same time, the clamping plates are easy to disassemble and install for replacement, which expands the scope of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the overall internal structure of the utility model;

[0015] Figure 3 It is a schematic diagram of the internal structure of the mounting seat in the utility model.

[0016] Explanation of the accompanying drawings: 1. Support platform; 2. Adjustment seat; 3. Sliding rod; 4. Mounting seat; 5. Clamp; 6. T-bar; 8. First connecting rod; 7. Sliding sleeve; 9. Second connecting rod; 10. Support plate; 11. Electric push rod; 12. Press plate. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figures 1 to 3 , the utility model provides a technical solution:

[0019] A lower die clamping device for a CNC hydraulic sheet metal bending machine comprises a support platform 1, an adjustment seat 2 arranged above the support platform 1, and a clamping assembly installed above the adjustment seat 2. An opening is provided above the adjustment seat 2, and a sliding seat is provided at the opening. The clamping assembly comprises a slide rod 3 slidably connected to the sliding seat, a mounting seat 4 installed at the other end of the slide rod 3, and a clamping plate 5 detachably connected to the mounting seat 4. An adjustment cavity is provided inside the adjustment seat 2, and a movable assembly for driving the slide rod 3 to slide is installed in the adjustment cavity.

[0020] When clamping, you can first select a suitable clamping plate according to the shape of the lower mold, and detachably install the clamping plate on the mounting seat 4, then place the lower mold between the two clamping plates, and drive the two sliding rods to move relative to each other through the movable component, thereby driving the two clamping plates to move to contact the lower mold to achieve the purpose of clamping.

[0021] The movable component includes a T-shaped rod 6 installed inside the adjustment cavity and a sliding sleeve 7 movably mounted on both ends of the T-shaped rod 6. One side of the sliding sleeve 7 is movably connected to the inner wall of the adjustment cavity through a first connecting rod 8, and the other side is movably connected to the sliding rod 3 through a second connecting rod 9.

[0022] A support plate 10 is installed below the support platform 1 , and an electric push rod 11 is installed on the support plate 10 . The bottom end of the T-bar 6 passes through the adjustment cavity and the support platform 1 and extends outside to be connected with the output shaft end of the electric push rod 11 .

[0023] During clamping, the electric push rod drives the T-bar 6 to move upward, thereby driving the two sleeves to slide in relative directions on the T-bar 6. When the sleeve slides, the second connecting rod 9 drives the two slides to move relative to each other to complete the clamping. The second connecting rod limits the sleeve, ensuring that the sliding of the sleeve is more stable. One electric push rod can drive the two clamps to move to complete the clamping, saving costs.

[0024] One side of the mounting seat 4 is provided with a mounting groove matching the splint 5, and a pull rod is slidably connected to one side of the mounting groove. The pull rod extends to the mounting groove and a pressure plate 12 is provided therein, and a spring is sleeved on the outside. The two ends of the spring are respectively connected to the pressure plate 12 and the inner wall of the mounting groove. When installing, pull the pull rod outward, insert one end of the splint 5 into the mounting groove, and then release the pull rod. The elastic force of the spring allows the pressure plate 12 to clamp and fix the splint 5. When disassembling, pull the pull rod outward with force.

[0025] Rubber pads are installed on the inner wall of the installation groove to improve the firmness of the installation.

[0026] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0027] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0028] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0029] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A lower die clamping device for a CNC hydraulic sheet metal bending machine, characterized in that: The invention comprises a support platform (1), an adjustment seat (2) arranged above the support platform (1), and a clamping assembly installed above the adjustment seat (2); an opening is provided above the adjustment seat (2), and a sliding seat is provided at the opening; the clamping assembly comprises a sliding rod (3) respectively connected to the sliding seat in a sliding manner, a mounting seat (4) installed at the other end of the sliding rod (3), and a clamping plate (5) connected to the mounting seat (4) in a detachable manner; an adjustment cavity is provided inside the adjustment seat (2), and a movable assembly for driving the sliding rod (3) to slide is installed in the adjustment cavity.

2. The lower die clamping device of a CNC hydraulic sheet metal bending machine according to claim 1 is characterized in that: The movable assembly comprises a T-shaped rod (6) installed inside the adjustment cavity, and sliding sleeves (7) movably mounted on both ends of the T-shaped rod (6); one side of the sliding sleeve (7) is movably connected to the inner wall of the adjustment cavity via a first connecting rod (8), and the other side of the sliding sleeve (7) is movably connected to the sliding rod (3) via a second connecting rod (9).

3. The lower die clamping device of a CNC hydraulic sheet metal bending machine according to claim 2 is characterized in that: A support plate (10) is installed below the support platform (1), an electric push rod (11) is installed on the support plate (10), and the bottom end of the T-shaped rod (6) passes through the adjustment cavity and the support platform (1) and extends to the outside to be connected to the output shaft end of the electric push rod (11).

4. The lower die clamping device of a CNC hydraulic sheet metal bending machine according to claim 1 is characterized in that: One side of the mounting seat (4) is provided with a mounting groove matching the clamping plate (5), one side of the mounting groove is slidably connected with a pull rod, the pull rod extends into the mounting groove and is provided with a pressure plate (12), and a spring is sleeved on the outside, and the two ends of the spring are respectively connected to the pressure plate (12) and the inner wall of the mounting groove.

5. The lower die clamping device of a CNC hydraulic sheet metal bending machine according to claim 4 is characterized in that: A rubber pad is installed on the inner wall of the installation groove.

Images