Clamping device of band sawing machine

Abstract

The utility model discloses a clamping device of a band sawing machine, relates to the technical field of sawing machines, and aims to solve the problem that the band sawing machine needs to replace different clamping devices for clamping according to different workpiece conditions. The clamping device of the band sawing machine comprises a clamping box, and a front clamp and a rear clamp are arranged on the upper surface of the clamping box. The front clamp and the rear clamp are driven by lead screws and are arranged on the front side and the rear side of a saw belt respectively, a downward pressing device is installed on the rear clamp, and two guide wheels are installed on the surface of the front side of the clamping box.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sawing machine, concretely relates to a band sawing machine clamping device. BACKGROUND

[0002] Band sawing machine is used for sawing various metal materials, and is divided into horizontal and vertical types according to structure, and is divided into semi-automatic, full-automatic and numerical control according to function.

[0003] When the band sawing machine is used, the workpiece needs to be clamped by using the clamping device, and different clamping modes need to be used for different workpiece conditions, that is, when batch square pipes are sawed, the lower pressing device needs to be used, when a single solid round bar is sawed, the left and right clamping jaws are directly clamped, when special-shaped parts are sawed, the double clamping jaws need to be adopted, when two or more round bars are sawed, the left and right clamping jaws are clamped and then the upper pressing device is pressed down, and when reinforcing steel bars are sawed, the reinforcing steel bars need to be clamped by using the clamping device after being pulled tight by the steel rope. SUMMARY

[0004] In order to solve the above problems, that is, the band sawing machine needs to replace different clamping devices for clamping according to different workpiece conditions, the utility model provides a band sawing machine clamping device, which comprises a clamping box, a front clamp and a rear clamp are arranged on the upper surface of the clamping box, the front clamp and the rear clamp are driven by a lead screw, the front clamp and the rear clamp are arranged on the front side and the rear side of a sawing belt respectively, a lower pressing device is arranged on the rear clamp, and two guide wheels are arranged on the front side surface of the clamping box.

[0005] The utility model further provides that the lead screw is arranged in the clamping box, an avoiding groove is arranged on the upper surface of the clamping box, and the avoiding groove is arranged directly below the sawing belt.

[0006] The utility model further provides that the lead screw is arranged in the clamping box, an avoiding groove is arranged on the upper surface of the clamping box, and the avoiding groove is arranged directly below the sawing belt.

[0007] The utility model further provides that the lead screw is arranged in the clamping box, an avoiding groove is arranged on the upper surface of the clamping box, and the avoiding groove is arranged directly below the sawing belt.

[0008] The utility model discloses a further setting be: lower pressure device includes lower pressure lever, two piece the upper surface of rear clamping plate all is provided with vertical screw rod, the long slot and short groove are seted up to lower pressure lever, two vertical screw rod respectively wear long slot and short groove, and have the nut of screw thread connection.

[0009] The utility model discloses a further setting be: lower pressure plate is connected with lower pressure plate screw thread through adjusting lever.

[0010] The utility model discloses the beneficial effect that:

[0011] 1, through the cooperation of front clamp, rear clamp and pad, the purpose of double-jaw clamping can be realized, through installing lower pressure device, the purpose of lower pressure clamping can be realized, and through setting guide wheel, the purpose of tensioning can be realized with steel rope and pulling device, and the clamping purpose of different working conditions is further realized, the application range of clamping device is wider, and different clamping devices do not need to be repeatedly replaced.

[0012] 2, through setting adjusting groove, the installation position of pad can be changed, and then the front-back distance between pads is adjusted, so that the pad can satisfy the purpose of clamping different length special-shaped parts. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The structure schematic diagram of the utility model and sawing belt relative position relation is shown.

[0014] Figure 2 The structure schematic diagram of the utility model is shown.

[0015] Figure 3 The structure schematic diagram of the utility model after pad removal is shown.

[0016] Figure 4 The structure schematic diagram of the utility model after lower pressure device removal is shown. Figure 3 The structure schematic diagram of the utility model after lower pressure device removal is shown.

[0017] Figure 5 The structure schematic diagram of the sliding block in clamping box is shown.

[0018] Fig. 1 clamping box 11, avoid the groove 2, front clamp 21, rear clamp 3, rear clamping plate 31, vertical screw rod 311, screw rod 4, sliding block 41, angle plate 411, sawing belt 5, lower pressure device 6, lower pressure lever 61, long slot 611, short slot 612, lower pressure plate 62, adjusting lever 621, guide wheel 7, adjusting groove 8, horizontal screw rod 81, pad 9. DETAILED DESCRIPTION

[0019] The preferred embodiments of the present application will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present application, and are not intended to limit the protection scope of the present application.

[0020] The utility model provides a band sawing machine clamping device, including clamping box 1, the upper surface of clamping box 1 is provided with front clamp 2 and rear clamp 3, front clamp 2 and rear clamp 3 all drive through screw 4, front clamp 2 and rear clamp 3 are arranged respectively at the front side and rear side of sawing band 5 to realize the purpose of double-jaw clamping to workpiece. Rear clamp 3 still is installed with down pressure device 6, down pressure device 6 can exert downward extrusion force to workpiece, and then realize the down pressure purpose to workpiece. The front side surface of clamping box 1 still is rotatably connected with two guide wheels 7, two are about the midline of screw 4 symmetry and set up, when needing to utilize steel rope to tighten workpiece, two guide wheels 7 can cooperate with steel rope and tighten.

[0021] Screw 4 is installed in clamping box 1, and the both ends of screw 4 are rotatably connected on the bed body of sawing machine, and one end of screw 4 is also installed with driving motor to drive screw 4 to rotate, and then realize the clamp of driving front clamp 2 and rear clamp 3. The upper surface of clamping box 1 is provided with avoiding slot 11, avoiding slot 11 is arranged directly above screw 4, directly below sawing band 5, when sawing band 5 is fed downward, avoiding slot 11 can provide sufficient feeding space for sawing band 5, to avoid sawing band 5 from contacting clamping box 1.

[0022] Screw 4 is installed in clamping box 1, and the both ends of screw 4 are rotatably connected on the bed body of sawing machine, and one end of screw 4 is also installed with driving motor to drive screw 4 to rotate, and then realize the clamp of driving front clamp 2 and rear clamp 3. The upper surface of clamping box 1 is provided with avoiding slot 11, avoiding slot 11 is arranged directly above screw 4, directly below sawing band 5, when sawing band 5 is fed downward, avoiding slot 11 can provide sufficient feeding space for sawing band 5, to avoid sawing band 5 from contacting clamping box 1.

[0023] The front clamping plates 21 and the rear clamping plates 31 are provided with adjusting grooves 8, the adjusting grooves 8 are horizontally arranged, horizontal screw rods 81 are arranged in the adjusting grooves 8, one end of the horizontal screw rods 81 extends into the space between the two front clamping plates 21 or the two rear clamping plates 31, and the end of the horizontal screw rods 81 close to the inner side is threadedly connected with a pad 9, the pad 9 is fixed by tightening the horizontal screw rods 81, and the pad 9 can be arranged to clamp and fix the special-shaped workpiece, so that the interference between the front clamping plates 21 or the rear clamping plates 31 and the workpiece due to the excessive clamping area of the front clamping plates 21 or the rear clamping plates 31 is avoided. Meanwhile, the horizontal screw rods 81 can be slid in the adjusting grooves 8 to change the distance between the pads 9, so that the clamps can be adapted to clamp special-shaped workpieces of different lengths.

[0024] The pressing device 6 comprises a pressing rod 61, and vertical screw rods 311 are welded to the upper surfaces of the two rear clamping plates 31. Long grooves 611 and short grooves 612 are formed in the pressing rod 61, one of the vertical screw rods 311 passes through the short grooves 612 and is threadedly connected with a nut, and the other vertical screw rod 311 passes through the long grooves 611 and is also threadedly connected with a nut. Threaded holes are formed in the pressing rod 61, adjusting rods 621 are threadedly connected in the threaded holes, the adjusting rods 621 are arranged below the pressing rod 61, and a pressing plate 62 is welded to the bottom end of the adjusting rods 621, so that the height of the pressing plate 62 can be adjusted by rotating the adjusting rods 621.

[0025] Different working conditions in use:

[0026] When sawing a plurality of square tubes, the pressing rod 61 is first disassembled, then the plurality of square tubes are laid on the upper surface of the clamping box 1, then the lead screw 4 is driven to rotate by the driving motor, so that the two front clamping plates 21 and the two rear clamping plates 31 clamp the left and right sides of the square tubes, then the pressing plate 62 is adjusted to the appropriate height, the pressing rod 61 is installed on the two vertical screw rods 311, so that the pressing plate 62 abuts against the upper surface of the square tube, then the nuts on the long grooves 611 are tightened, so that the square tube is pressed in the up-down direction, and finally the sawing work is started.

[0027] When sawing a single solid round bar, the pressing rod 61 and the pad 9 are disassembled, the lead screw 4 is directly driven to rotate by the driving motor, so that the two front clamping plates 21 and the two rear clamping plates 31 clamp the solid round bar, and then the sawing work is started.

[0028] When sawing a special-shaped workpiece, the pad 9 is installed on the two front clamping plates 21 and the two rear clamping plates 31 by the horizontal screw rod 81, and the position in the adjusting groove 8 is adjusted, then the lead screw 4 is driven to rotate by the driving motor, so that the four pads 9 clamp the two ends of the special-shaped workpiece, and finally the sawing work is started.

[0029] When sawing two or more round bars: on the basis of clamping a single solid round bar, the pressing action of the lower pressing device 6 is matched, and then the sawing work is started.

[0030] When sawing steel bars: the front end of the steel rope is crossed and wound around the steel bar, and then the steel rope is matched with the guide wheel 7 and the pulling device to make the steel rope tight, then the left and right sides of the steel bar are clamped by the two front clamping plates 21 and the two rear clamping plates 31, and finally the upper and lower pressing of the upper and lower pressing device 6 is matched, and the sawing work can be carried out.

[0031] It should be noted that the specific structure of the clamping device and the relative position relationship with the band saw 5 are shown in the drawings of the specification, and part of the structure of the band saw is omitted, and the driving motor, the steel rope and the pulling device in the present application all adopt the existing technology used in the existing band saw, that is, the driving motor used to drive the lead screw 4 of the existing band saw, and the hydraulic pulling device used in the existing band saw, which are all conventional structures on the existing band saw, so they will not be described here.

[0032] In summary, the front clamp 2 and the rear clamp 3 are matched with the pad 9, which can realize the purpose of double-jaw clamping, the lower pressing device 6 is installed, which can realize the purpose of lower pressing clamping, the guide wheel 7 is arranged, which can cooperate with the steel rope and the pulling device to realize the purpose of tensioning, and further realize the clamping purpose of different working conditions, so that the application range of the clamping device is wider, and different clamping devices do not need to be replaced repeatedly. By opening the adjusting groove 8, the installation position of the pad 9 can be changed, and the front and rear distance between the pads 9 is adjusted, so that the pad 9 can meet the purpose of clamping different lengths of special-shaped parts.

[0033] Although the present application has been described with reference to the preferred embodiments, various improvements can be made and equivalent parts can be substituted without departing from the scope of the present application, and in particular, the technical features mentioned in each embodiment can be combined in any way as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0034] In the description of the present application, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the purpose of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0035] In addition, it also needs to be explained that, in the description of the utility model, unless there is another explicit provision and limitation, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0036] The term "comprising" or any other similar word is intended to cover non-exclusive inclusion, so that the process, article or equipment / device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes the elements inherent in the process, article or equipment / device.

[0037] So far, the technical scheme of the utility model has been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to related technical features without deviating from the principles of the utility model, and the technical schemes after the changes or replacements will fall within the protection scope of the utility model.

Claims

1. A clamping device for a band saw, characterized in that: It includes a clamping box (1), on the upper surface of which a front clamp (2) and a rear clamp (3) are provided. Both the front clamp (2) and the rear clamp (3) are driven by a lead screw (4). The front clamp (2) and the rear clamp (3) are respectively located on the front and rear sides of the saw blade (5). A pressing device (6) is installed on the rear clamp (3). Two guide wheels (7) are installed on the front surface of the clamping box (1).

2. The band saw clamping device according to claim 1, characterized in that: The lead screw (4) is disposed inside the clamping box (1), and the upper surface of the clamping box (1) is provided with a clearance groove (11), which is located directly below the saw blade (5).

3. The band saw clamping device according to claim 2, characterized in that: The lead screw (4) is provided with a forward thread and a reverse thread, and a slider (41) is threadedly connected to the forward thread and the reverse thread respectively; the front clamp (2) includes two front clamps (21), and the rear clamp (3) includes two rear clamps (31). Each slider (41) is connected to a front clamp (21) and a rear clamp (31) through an angle plate (411).

4. The band saw clamping device according to claim 3, characterized in that: Both the front clamping plate (21) and the rear clamping plate (31) have horizontally arranged adjustment grooves (8), and a horizontal screw (81) is inserted into the adjustment groove (8). A pad (9) is threaded onto one end of the screw near the inner side.

5. The band saw clamping device according to claim 3, characterized in that: The pressing device (6) includes a pressing rod (61), and vertical screws (311) are provided on the upper surfaces of the two rear clamping plates (31). The pressing rod (61) has a long slot (611) and a short slot (612). The two vertical screws (311) pass through the long slot (611) and the short slot (612) respectively, and are threaded with nuts. The lower surface of the pressing rod (61) is connected to a pressing plate (62).

6. The band saw clamping device according to claim 5, characterized in that: The lower pressure plate (62) is threadedly connected to the lower pressure plate (62) via an adjusting rod (621).

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