Adjustable clamp for sheet metal machining

Abstract

The utility model discloses an adjustable clamp for sheet metal working, which comprises a base, a plurality of symmetrically arranged fixed seats are arranged at the upper end of the base, two symmetrically arranged double-thread screws are rotatably connected between the plurality of fixed seats in a penetrating manner, and the screwing directions of threads at two ends of the two double-thread screws are opposite. The outer walls of the two ends of the two double-thread screws are jointly in threaded connection with moving plates, fixing frames are arranged at the upper ends of the two moving plates, fixing mechanisms used for fixing a metal plate are arranged in the two fixing frames, and fixing plates are arranged at the upper ends of the two moving plates and the upper end of the base. Driving mechanisms used for driving the fixing mechanisms are arranged between the fixing plates on the two sides and the fixing frame. According to the utility model, the two movable plates move oppositely or reversely by utilizing the opposite screwing directions of the threads at the two ends of the double-thread screw and the threaded connection between the two movable plates and the outer wall of the double-thread screw, so that the distance between the two movable plates is adjusted, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sheet metal processing, in particular to an adjustable clamp for sheet metal processing. Background Art

[0002] Sheet metal is a commonly used metal processing technology. According to statistics, sheet metal parts account for more than 90% of all metal products. In order to facilitate sheet metal processing, it is often necessary to use fixtures and other devices to fix the sheet metal parts to facilitate efficient and rapid molding of the mold during the cutting process.

[0003] However, the clamps in the prior art can generally only clamp sheet metals of a specific length and thickness. When processing sheet metals of different thicknesses and lengths, the clamps cannot be adjusted, thereby reducing the overall practicality and adaptability of the device. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art. By utilizing the opposite rotation directions of the threads at both ends of the double-headed screw and the threaded connection between the two movable plates and the outer wall of the double-headed screw, the two movable plates are made to move relative to each other or toward each other, so that the distance between the two movable plates is adjusted, thereby improving the practicality of the device, and an adjustable sheet metal processing clamp is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A clamp for sheet metal processing which is adjustable comprises a base, a plurality of symmetrically arranged fixing seats being provided at the upper end of the base, two symmetrically arranged double-headed screws being rotatably connected through the fixing seats, the threads at both ends of the two double-headed screws being rotated in opposite directions, movable plates being commonly threadedly connected to the outer walls at both ends of the two double-headed screws, fixing frames being provided at the upper ends of the two movable plates, fixing mechanisms for fixing sheet metal being provided in the two fixing frames, fixing plates being provided at the upper ends of the two movable plates and the upper end of the base, and driving mechanisms for driving the fixing mechanisms being provided between the fixing plates and the fixing frames on both sides.

[0007] Preferably, the fixing mechanism includes a plurality of symmetrically arranged through rods that are slidably connected therethrough, a pressure plate is commonly provided at the lower ends of the plurality of through rods, a plurality of springs are elastically connected between the pressure plate and the fixing frame, and the plurality of springs are respectively sleeved on the outer walls of the plurality of through rods.

[0008] Preferably, the driving mechanism includes a moving rod rotatably connected to the side wall of the fixed plate, the fixed frame passes through a transmission rod rotatably connected, the end of the transmission rod and the outer wall of the moving rod are provided with bevel gears, the two bevel gears are meshed, the outer wall of the transmission rod is provided with a convex plate, and the outer wall of the convex plate is slidably connected to the upper end of the pressure plate.

[0009] Preferably, the middle fixed plate is rotatably connected with a fixed tube, and the ends of the two moving rods extend into two ends of the fixed tube respectively and are slidably connected thereto.

[0010] Preferably, a plurality of limit strips are provided through the inner wall of the fixed tube, a plurality of circumferentially arranged limit grooves are provided on the outer walls of the two movable rods, and the plurality of limit strips are respectively located in the plurality of limit grooves and are slidably connected thereto.

[0011] Preferably, a support plate is provided on the side wall of the middle fixed plate, a power motor is provided on the upper end of the support plate, a rotating shaft is provided at the end of the output shaft of the power motor, the rotating shaft passes through the middle fixed plate and is rotatably connected thereto, and transmission wheels are provided on the rotating shaft and the outer wall of the fixed tube, and the two transmission wheels are meshed with each other.

[0012] Beneficial effects of the utility model:

[0013] 1. By utilizing the opposite rotation directions of the threads at both ends of the double-headed screw and the threaded connection between the two moving plates and the outer wall of the double-headed screw, the two moving plates can be moved relative to each other or back and forth, so that the distance between the two moving plates can be adjusted, thereby improving the practicality of the device.

[0014] 2. By utilizing the sliding connection between the convex plate and the pressure plate, and the through-sliding connection of multiple through rods between the pressure plate and the fixed frame, the two pressure plates are moved down to contact the two ends of the sheet metal respectively, so as to fix sheet metal parts of different thicknesses and improve the adaptability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a side view schematic diagram of the overall structure of the utility model;

[0017] Figure 3 For this utility model Figure 1 A schematic diagram of the enlarged structure in FIG.

[0018] In the figure: 1 base, 2 fixed seat, 3 double-headed screw, 4 moving plate, 5 fixed frame, 6 through rod, 7 pressure plate, 8 fixed plate, 9 moving rod, 10 limiting groove, 11 transmission rod, 12 convex plate, 13 bevel gear, 14 fixed pipe, 15 limiting strip, 16 power motor, 17 transmission wheel. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0021] Reference Figure 1-3 A kind of adjustable sheet metal processing fixture comprises a base 1, a plurality of symmetrically arranged fixed seats 2 are arranged on the upper end of the base 1, two symmetrically arranged double-headed screws 3 are rotatably connected through the plurality of fixed seats 2, the threads at both ends of the two double-headed screws 3 are rotated in opposite directions, and the outer walls at both ends of the two double-headed screws 3 are commonly threadedly connected with a movable plate 4. By utilizing the opposite threads at both ends of the double-headed screws 3 and the threaded connection between the two movable plates 4 and the outer walls of the double-headed screws 3, the two movable plates 4 are made to move relative to or back to back, so that the distance between the two movable plates 4 is adjusted, thereby improving the practicality of the device.

[0022] A fixing frame 5 is provided at the upper end of the two movable plates 4, and a fixing mechanism for fixing the sheet metal is provided in the two fixing frames 5. The fixing mechanism includes a plurality of symmetrically arranged through rods 6 that are slidably connected therethrough, and a pressing plate 7 is commonly provided at the lower ends of the plurality of through rods 6. A plurality of springs are elastically connected between the pressing plate 7 and the fixing frame 5, and a plurality of springs are respectively sleeved on the outer walls of the plurality of through rods 6. By utilizing the sliding connection between the convex plate 12 and the pressing plate 7, and the through sliding connection of the plurality of through rods 6 between the pressing plate 7 and the fixing frame 5, the two pressing plates 7 are moved downward and respectively contact the two ends of the sheet metal, thereby realizing the fixation of sheet metal parts of different thicknesses and improving the adaptability of the device.

[0023] A fixed plate 8 is provided on the upper end of the two movable plates 4 and the base 1, and a driving mechanism for driving the fixing mechanism is provided between the fixed plates 8 on both sides and the fixed frame 5. The driving mechanism includes a movable rod 9 rotatably connected to the side wall of the fixed plate 8, and a transmission rod 11 is rotatably connected to the fixed frame 5. A bevel gear 13 is provided on the end of the transmission rod 11 and the outer wall of the movable rod 9. The two bevel gears 13 are meshed with each other. A convex plate 12 is provided on the outer wall of the transmission rod 11, and the outer wall of the convex plate 12 is slidably connected to the upper end of the pressure plate 7.

[0024] The middle fixed plate 8 is rotatably connected with a fixed tube 14 , and the ends of the two moving rods 9 extend into the two ends of the fixed tube 14 respectively and are slidably connected thereto.

[0025] A plurality of limiting strips 15 are provided through the inner wall of the fixed tube 14 , and a plurality of circumferentially arranged limiting grooves 10 are provided on the outer walls of the two movable rods 9 . The plurality of limiting strips 15 are respectively located in the plurality of limiting grooves 10 and are slidably connected thereto.

[0026] A support plate is provided on the side wall of the middle fixed plate 8, and a power motor 16 is provided on the upper end of the support plate. A rotating shaft is provided at the end of the output shaft of the power motor 16. The rotating shaft passes through the middle fixed plate 8 and is rotatably connected thereto. A transmission wheel 17 is provided on the outer wall of the rotating shaft and the fixed tube 14, and the two transmission wheels 17 are meshed with each other.

[0027] When the utility model is used, when processing the sheet metal, the sheet metal is placed on the upper ends of the two movable plates 4, and the power motor 16 is started, so that the power motor 16 drives the transmission wheel 17 to rotate, and the engagement between the two transmission wheels 17 is utilized to rotate the fixed tube 14, and the cooperation between the plurality of limit strips 15 and the limit grooves 10 between the fixed tube 14 and the two movable rods 9 is utilized to rotate the two movable rods 9, and the meshing action of the bevel gear 13 between the movable rod 9 and the transmission rod 11 is utilized to rotate the two transmission rods 11, so that the convex plate 12 on the outer wall of the transmission rod 11 is rotated, and the sliding connection between the convex plate 12 and the pressing plate 7, and the penetrating sliding connection of the plurality of penetrating rods 6 between the pressing plate 7 and the fixed frame 5 are utilized to make the two pressing plates 7 move down and contact the two ends of the sheet metal respectively, so as to fix the sheet metal parts of different thicknesses and improve the adaptability of the device;

[0028] When fixing sheet metal parts of different lengths, the existing technology is used to rotate the two double-headed screws 3 (this part of the power is provided by the driving motor), and the threads at both ends of the double-headed screws 3 rotate in opposite directions. The two movable plates 4 are threadedly connected to the outer walls of the double-headed screws 3, so that the two movable plates 4 can move relative to each other or back and forth, and the distance between the two movable plates 4 can be adjusted, thereby improving the practicality of the device.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An adjustable sheet metal processing fixture, comprising a base (1), characterized in that: The upper end of the base (1) is provided with a plurality of symmetrically arranged fixing seats (2), two symmetrically arranged double-headed screws (3) are rotatably connected to each other between the plurality of fixing seats (2), the threads at both ends of the two double-headed screws (3) are in opposite directions, the outer walls at both ends of the two double-headed screws (3) are both threadedly connected to a movable plate (4), the upper ends of the two movable plates (4) are provided with a fixing frame (5), the two fixing frames (5) are provided with a fixing mechanism for fixing the sheet metal, the two movable plates (4) and the upper end of the base (1) are provided with a fixing plate (8), and a driving mechanism for driving the fixing mechanism is provided between the fixing plates (8) and the fixing frames (5) on both sides.

2. The adjustable sheet metal processing fixture according to claim 1, characterized in that: The fixing mechanism comprises a plurality of symmetrically arranged through rods (6) which are slidably connected therethrough, a pressing plate (7) being provided at the lower ends of the plurality of through rods (6), a plurality of springs being elastically connected between the pressing plate (7) and the fixing frame (5), and the plurality of springs being respectively sleeved on the outer walls of the plurality of through rods (6).

3. The adjustable sheet metal processing fixture according to claim 2, characterized in that: The driving mechanism comprises a moving rod (9) rotatably connected to the side wall of the fixed plate (8); a transmission rod (11) is rotatably connected to the fixed frame (5); the end of the transmission rod (11) and the outer wall of the moving rod (9) are both provided with bevel gears (13); the two bevel gears (13) are meshed with each other; the outer wall of the transmission rod (11) is provided with a convex plate (12); the outer wall of the convex plate (12) is slidably connected to the upper end of the pressure plate (7).

4. The adjustable sheet metal processing fixture according to claim 3, characterized in that: The middle fixed plate (8) is rotatably connected with a fixed tube (14), and the ends of the two moving rods (9) extend into the two ends of the fixed tube (14) respectively and are slidably connected thereto.

5. The adjustable sheet metal processing fixture according to claim 4, characterized in that: The inner wall of the fixed tube (14) is penetrated by a plurality of limit strips (15), and the outer walls of the two movable rods (9) are provided with a plurality of circumferentially arranged limit grooves (10), and the plurality of limit strips (15) are respectively located in the plurality of limit grooves (10) and are slidably connected thereto.

6. The adjustable sheet metal processing fixture according to claim 5, characterized in that: A support plate is provided on the side wall of the middle fixed plate (8), a power motor (16) is provided on the upper end of the support plate, a rotating shaft is provided at the end of the output shaft of the power motor (16), the rotating shaft passes through the middle fixed plate (8) and is rotatably connected thereto, and a transmission wheel (17) is provided on the outer wall of the rotating shaft and the fixed tube (14), and the two transmission wheels (17) are meshed with each other.

Images