Efficient sawing clamping mechanism of band sawing machine

Abstract

The utility model discloses an efficient sawing clamping mechanism of a band sawing machine, which comprises a fixing plate and a base, connecting pieces are fixedly mounted on two sides of the horizontal end of the fixing plate, and the fixing plate is fixedly connected with the base. According to the device, the fixing plate is installed at the designated position of the band sawing machine, the air cylinder pushes the push rod to move upwards, the push rod is in linkage with the connecting rod, the two ends of the connecting rod are rotationally matched with the push rod and the cross rod correspondingly, and meanwhile the cross rod drives the swing arms to axially deflect till the positioning blocks at the open ends of the two swing arms abut against the two sides of a to-be-machined part correspondingly; on one hand, a traditional oil cylinder is replaced by the air cylinder, the clamping speed is increased, and therefore the production efficiency is improved, on the other hand, a set of labor-saving lever mechanism can be formed among the connecting rod, the cross rod and the swing arm, and on the premise that the pushing force of the air cylinder is normalized, the clamping stability of the workpiece to be machined is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of band sawing machines, in particular to a high-efficiency sawing and clamping mechanism for a band sawing machine. Background Art

[0002] Band saws are machine tools used to saw various metal materials. They are divided into horizontal and vertical types according to their structure, and semi-automatic, fully automatic, and CNC according to their functions. Horizontal types can be divided into double-column and scissor types.

[0003] At present, the domestic mold steel cutting industry still mainly uses bimetallic band saw blades for sawing, and occasionally uses circular saws for some small materials;

[0004] At present, the clamping device of the band saw machine uses a hydraulic oil pump to drive the hydraulic cylinder through the hydraulic pipeline to clamp the workpiece. The hydraulic pressure of the hydraulic cylinder has a large clamping force and the workpiece is not easy to loosen. However, the hydraulic cylinder is directly connected to the clamping mechanism by bolts to directly clamp the workpiece. The time used for clamping the workpiece depends on the travel speed of the hydraulic cylinder. Especially when the weather is cold, the hydraulic cylinder clamps slowly and the production efficiency is low. In addition, the hydraulic system is prone to leakage, which pollutes the site and the workpiece and is not easy to clean. In addition, the hydraulic pump, pipeline and hydraulic cylinder have high overall manufacturing cost and investment, and are difficult to repair in the event of a fault. Therefore, it is urgent to propose a corresponding high-efficiency sawing and clamping mechanism for band saw machines to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems and to propose a high-efficiency sawing and clamping mechanism for a band sawing machine.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A band sawing machine high-efficiency sawing and clamping mechanism comprises a fixed plate and a base, connecting plates are fixedly installed on both sides of the horizontal end of the fixed plate, the fixed plate is fixedly connected to the base, two groups of cross bars are rotatably connected inside the base through two groups of shafts, the two groups of cross bars are integrally formed with swing arms, and contact components are provided at the open ends of the two groups of swing arms, a cylinder is fixedly installed at the bottom of the base, and a pushing component for pushing the cross bars is provided at the output end of the cylinder.

[0008] Preferably, a strap is fixedly mounted on the outer wall of the horizontal end of the base, the strap is engaged with the inside of the fixed plate through a slot, and the strap is fixedly connected to the fixed plate through a fastening rod.

[0009] Preferably, a connecting frame is provided below the fixing plate, and two groups of protruding pieces are integrally formed on the outer wall of the connecting frame, and the two groups of protruding pieces are fixedly connected to the base and the cylinder respectively through two groups of mounting rods.

[0010] Preferably, the pushing assembly includes a push rod, which is fixedly connected to the output end of the cylinder, and connecting rods are hinged on both sides of the horizontal end of the push rod, and the open ends of the two groups of connecting rods are rotatably connected to the two groups of cross bars respectively.

[0011] Preferably, the contact assembly includes a positioning block, the positioning block is integrally formed with a fixing seat, and the fixing seat is detachably connected to the swing arm.

[0012] Preferably, the fixing seat is in an L-shaped structure, the fixing seat is overlapped on the open end of the swing arm, and the vertical end of the fixing seat is fixedly connected to the swing arm through a locking rod, and the open end of the positioning block is provided with rough texture.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0014] 1. In the present application, a fixed plate is installed at a designated position of the band saw, and a push rod is pushed upward by an air cylinder, and the push rod is linked to a connecting rod. At both ends of the connecting rod, the push rod and the cross bar are respectively rotated in coordination, and at the same time, the cross bar drives the swing arm to perform axial deflection until the positioning blocks at the open ends of the two sets of swing arms respectively abut against the two sides of the workpiece to be processed, thereby achieving the clamping and positioning of the workpiece to be processed. On the one hand, the air cylinder replaces the traditional oil cylinder, thereby increasing the clamping speed and thus improving the production efficiency. On the other hand, a group of labor-saving lever mechanisms can be formed between the connecting rod, the cross bar and the swing arm, which ensures the clamping stability of the workpiece to be processed under the premise of normalizing the cylinder driving force.

[0015] 2. In the present application, both sides of the base are placed into the interior of the fixed plate, and the straps on both sides of the base are overlapped with the slots on the fixed plate, and fixed by fastening rods. The cross bar, swing arm, push rod and cylinder are all integrated on the base, and the base and the fixed plate as well as the cylinder and the fixed frame are all detachably connected. In this way, the base and the fixed plate can be conveniently disassembled and assembled while ensuring that the fixed plate does not move, making the subsequent cleaning and maintenance of the overall clamping mechanism more convenient, thereby ensuring the convenience of using the efficient sawing clamping mechanism of the band saw. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The overall structure schematic diagram provided according to the embodiment of the utility model is shown;

[0017] Figure 2 A schematic diagram of the push rod structure provided according to an embodiment of the utility model is shown;

[0018] Figure 3 A schematic diagram of a butt-stitching structure provided according to an embodiment of the utility model is shown;

[0019] Figure 4 A schematic diagram of the crossbar structure provided according to an embodiment of the utility model is shown.

[0020] Legend:

[0021] 1. Fixing plate; 2. Connecting plate; 3. Base; 4. Swing arm; 5. Connecting rod; 6. Push rod; 7. Cylinder; 8. Positioning block; 9. Fixing seat; 10. Locking rod; 11. Cross bar; 12. Connecting frame; 13. Strap plate; 14. Fastening rod; 15. Slot; 16. Lug; 17. Mounting rod. DETAILED DESCRIPTION

[0022] 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 of 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.

[0023] See also Figure 1-4 , the utility model provides a technical solution:

[0024] A band sawing machine high-efficiency sawing clamping mechanism comprises a fixed plate 1 and a base 3, connecting plates 2 are fixedly installed on both sides of the horizontal end of the fixed plate 2, the fixed plate 1 is fixedly connected to the base 3, two groups of cross bars 11 are rotatably connected inside the base 3 through two groups of shafts, the two groups of cross bars 11 are integrally formed with swing arms 4, and the open ends of the two groups of swing arms 4 are provided with contact components, a cylinder 7 is fixedly installed at the bottom of the base 3, and a pushing component for pushing the cross bars 11 is provided at the output end of the cylinder 7;

[0025] The fixed plate 1 is installed at the specified position of the band saw, and the push rod 6 is pushed upward by the cylinder 7. The push rod 6 is linked with the connecting rod 5. The two ends of the connecting rod 5 are respectively rotated with the push rod 6 and the cross bar 11. At the same time, the cross bar 11 drives the swing arm 4 to axially deflect until the positioning blocks 8 at the open ends of the two groups of swing arms 4 respectively abut against the two sides of the workpiece to be processed, so as to achieve the clamping and positioning of the workpiece to be processed. On the one hand, the cylinder 7 replaces the traditional oil cylinder to improve the clamping speed, thereby improving the production efficiency. On the other hand, a group of labor-saving lever mechanisms can be formed between the connecting rod 5, the cross bar 11 and the swing arm 4. Under the premise of normalizing the driving force of the cylinder 7, the clamping stability of the workpiece to be processed is guaranteed.

[0026] Specifically, Figure 2 and Figure 4As shown, a strap 13 is fixedly installed on the outer wall of the horizontal end of the base 3, and the strap 13 is engaged with the inside of the fixed plate 1 through a slot 15, and the strap 13 and the fixed plate 1 are fixedly connected by a fastening rod 14. A connecting frame 12 is arranged below the fixed plate 1, and two groups of convex pieces 16 are integrally formed on the outer wall of the connecting frame 12. The two groups of convex pieces 16 are fixedly connected to the base 3 and the cylinder 7 through two groups of mounting rods 17, respectively, so that the two sides of the base 3 are placed in the interior of the fixed plate 1, and the straps 1 on both sides of the base 3 are fixedly connected. 3 is overlapped with the card slot 15 on the fixed plate 1, and is fixed by the fastening rod 14. The cross bar 11, the swing arm 4, the push rod 6 and the cylinder 7 are all integrated on the base 3, and the base 3 and the fixed plate 9 as well as the cylinder 7 and the connecting frame 12 are all detachably connected. On the basis of ensuring that the fixed plate 1 does not move, the base 3 and the fixed plate 1 can be conveniently disassembled and assembled, making the subsequent cleaning and maintenance of the overall clamping mechanism more convenient, thereby ensuring the convenience of using the high-efficiency sawing clamping mechanism of the band saw.

[0027] Specifically, Figure 2 and Figure 3 As shown, the pushing assembly includes a push rod 6, which is fixedly connected to the output end of the cylinder 7, and connecting rods 5 are hinged on both sides of the horizontal end of the push rod 6. The open ends of the two groups of connecting rods 5 are rotatably connected to the two groups of cross bars 11 respectively, and the push rod 6 is pushed upward by the cylinder 7. The push rod 6 links the connecting rod 5. The two ends of the connecting rod 5 are respectively rotated with the push rod 6 and the cross bar 11, and the cross bar 11 drives the swing arm 4 to axially deflect. The contact assembly includes a positioning block 8, and the positioning block 8 is integrally formed with a fixing seat 9, and the fixing seat 9 is detachably connected to the swing arm 4. The positioning blocks 8 at the open ends of the two groups of swing arms 4 are respectively abutted against the two sides of the workpiece to be processed, so as to realize the clamping and positioning of the workpiece to be processed. The fixing seat 9 is an L-shaped structure, and the fixing seat 9 is overlapped at the open end of the swing arm 4, and the vertical end of the fixing seat 9 is fixedly connected to the swing arm 4 through a locking rod 10, so as to facilitate the disassembly and assembly of the positioning block 8, and the open end of the positioning block 8 is provided with a rough texture to ensure the stability of the positioning of the workpiece to be processed.

[0028] Working principle: The fixed plate 1 is installed at the specified position of the band saw, and the push rod 6 is pushed upward by the cylinder 7. The push rod 6 is linked with the connecting rod 5. The two ends of the connecting rod 5 are respectively rotated with the push rod 6 and the cross bar 11. At the same time, the cross bar 11 drives the swing arm 4 to deflect axially until the positioning blocks 8 at the open ends of the two sets of swing arms 4 are respectively abutted against the two sides of the workpiece to be processed, so as to achieve the clamping and positioning of the workpiece to be processed. On the one hand, the cylinder 7 replaces the traditional oil cylinder to increase the clamping speed, thereby improving the production efficiency. On the other hand, a group of labor-saving lever mechanisms can be formed between the connecting rod 5, the cross bar 11 and the swing arm 4. Under the premise of the normalization of the driving force of the cylinder 7 In order to ensure the clamping stability of the workpiece to be processed, the two sides of the base 3 are placed into the fixed plate 1, and the straps 13 on both sides of the base 3 are overlapped to the slots 15 on the fixed plate 1, and fixed by the fastening rod 14, the cross bar 11, the swing arm 4, the push rod 6 and the cylinder 7 are all integrated on the base 3, and the base 3 and the fixed plate 1 as well as the cylinder 7 and the connecting frame 12 are all detachably connected. In this way, the base 3 and the fixed plate 1 can be conveniently disassembled and assembled while ensuring that the fixed plate 1 does not move, so that the subsequent cleaning and maintenance of the overall clamping mechanism is more convenient, thereby ensuring the convenience of using the clamping mechanism of the band sawing machine for efficient sawing.

[0029] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A band sawing machine high-efficiency sawing clamping mechanism, comprising a fixing plate (1) and a base (3), wherein connecting plates (2) are fixedly mounted on both sides of the horizontal end of the fixing plate (1), characterized in that: The fixing plate (1) is fixedly connected to the base (3); two groups of cross bars (11) are rotatably connected inside the base (3) via two groups of shafts; the two groups of cross bars (11) are integrally formed with swing arms (4); and contact components are provided at the open ends of the two groups of swing arms (4); a cylinder (7) is fixedly installed at the bottom of the base (3); and a pushing component for pushing the cross bars (11) is provided at the output end of the cylinder (7).

2. The high-efficiency sawing and clamping mechanism of a band saw according to claim 1, characterized in that: A strap (13) is fixedly mounted on the outer wall of the horizontal end of the base (3); the strap (13) is engaged with the interior of the fixed plate (1) via a slot (15); and the strap (13) and the fixed plate (1) are fixedly connected via a fastening rod (14).

3. The high-efficiency sawing and clamping mechanism of a band saw according to claim 2, characterized in that: A connecting frame (12) is provided below the fixing plate (1), and two groups of protruding pieces (16) are integrally formed on the outer wall of the connecting frame (12). The two groups of protruding pieces (16) are respectively fixedly connected to the base (3) and the cylinder (7) via two groups of mounting rods (17).

4. The high-efficiency sawing and clamping mechanism of a band saw according to claim 3, characterized in that: The pushing assembly comprises a push rod (6), the push rod (6) is fixedly connected to the output end of the cylinder (7), connecting rods (5) are hinged on both sides of the horizontal end of the push rod (6), and the open ends of the two groups of connecting rods (5) are rotatably connected to the two groups of cross bars (11) respectively.

5. The high-efficiency sawing and clamping mechanism of a band saw according to claim 4, characterized in that: The contact assembly comprises a positioning block (8), the positioning block (8) is integrally formed with a fixing seat (9), and the fixing seat (9) is detachably connected to the swing arm (4).

6. The high-efficiency sawing and clamping mechanism of a band saw according to claim 5, characterized in that: The fixing seat (9) is in an L-shaped structure, the fixing seat (9) is overlapped on the open end of the swing arm (4), and the vertical end of the fixing seat (9) is fixedly connected to the swing arm (4) via a locking rod (10), and the open end of the positioning block (8) is provided with rough texture.

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