Double-end cutting sawing machine positioning mechanism

Abstract

The utility model relates to the technical field of numerical control machine tools, and discloses a double-end cutting sawing machine positioning mechanism which comprises a double-end cutting saw fixed saw head and a double-end cutting saw movable saw head, a fixed end saw blade is arranged on the outer side of the double-end cutting saw fixed saw head, a movable end saw blade is arranged on the outer side of the double-end cutting saw movable saw head, and the fixed end saw blade and the movable end saw blade are arranged in parallel. A positioning mechanism is installed on the outer side of the fixed saw head of the double-end cutting saw and comprises an installation bottom plate, and the outer side of the installation bottom plate is installed on the outer side of the fixed saw head of the double-end cutting saw. According to the utility model, the piston rod of the driving cylinder stretches out and draws back to drive the positioning plate to reach a positioning position, so that an automatic positioning function is realized, workpieces only need to be aligned with the positioning plate during manual workpiece feeding, visual adjustment is not needed, and the manual labor intensity and the processing time are reduced; and meanwhile, the rear limiting positioning plate, the rear limiting block, the front limiting mounting seat and the front limiting block act together, so that the positioning precision is ensured, and workpiece scrapping caused by inaccurate positioning is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, and in particular to a positioning mechanism for a double-head cutting saw. Background Technology

[0002] The double-head CNC precision cutting saw uses carbide circular saw blades to cut workpieces. It has the advantages of fast cutting speed, high production efficiency, simple operation and reliable performance. It is widely used in the manufacturing process, especially in the aluminum profile industry, where it occupies a very large market share.

[0003] Currently, most dual-head CNC precision cutting saws on the market (including 90° cutting saws and saws at any angle) use a free positioning method for cutting, meaning there is no positioning device on the active head cutting platform. When manually loading parts, visual positioning is required, placing the ends of each workpiece over the saw blade. This positioning method is time-consuming, labor-intensive, and prone to inaccurate positioning, resulting in workpieces being cut shorter than their specifications and scrapped. Furthermore, to ensure the sawing dimensions are within specifications, the workpiece ends are usually placed about 10mm over the saw blade, which increases cutting waste and leads to waste.

[0004] To address the above problems, a positioning mechanism for a double-head cutting saw is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a positioning mechanism for a double-head cutting saw, which aims to improve the existing technology where double-head CNC precision cutting saws mostly adopt free positioning cutting, and the active head cutting platform has no positioning device. Manual visual positioning is not only time-consuming and laborious, but also prone to workpiece scrapping due to inaccurate positioning. In addition, in order to ensure that the sawing size is qualified, the end of the workpiece is often placed beyond the saw blade, resulting in increased cutting waste and material waste.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a positioning mechanism for a double-head cutting saw, comprising a fixed saw head and a movable saw head, wherein a fixed end saw blade is provided on the outside of the fixed saw head, a movable end saw blade is provided on the outside of the movable saw head, and a positioning mechanism is installed on the outside of the fixed saw head.

[0007] The positioning mechanism includes a mounting base plate, which is mounted on the outside of the fixed saw head of the double-head cutting saw. A drive cylinder is fixedly connected to the outside of the mounting base plate. A positioning plate is fixedly connected to the output end of the drive cylinder. A rear limit positioning plate is mounted on the rear side of the drive cylinder. A rear limit block is mounted on the outside of the rear limit positioning plate. A front limit mounting seat is provided on the outside of the positioning plate. A front limit block is mounted on the outside of the mounting base plate.

[0008] As a further description of the above technical solution:

[0009] The double-head cutting saw has a fixed end clamping device installed on the inner wall of the fixed saw head.

[0010] As a further description of the above technical solution:

[0011] The inner wall of the movable saw head of the double-headed cutting saw is equipped with a moving end clamping device.

[0012] As a further description of the above technical solution:

[0013] The top of the movable saw head of the double-head cutting saw is equipped with a protective cover for the movable saw head.

[0014] As a further description of the above technical solution:

[0015] The double-head cutting saw has a fixed saw head protective cover on the top of the fixed saw head.

[0016] As a further description of the above technical solution:

[0017] A protective cover is fixedly connected to the outside of the positioning plate.

[0018] This utility model has the following beneficial effects:

[0019] In this invention, the positioning plate is driven to the positioning position by the extension and retraction of the piston rod of the driving cylinder, thus realizing the automatic positioning function. When manually loading the workpiece, it is only necessary to align the workpiece with the positioning plate without visual adjustment, which reduces the labor intensity and processing time. At the same time, the rear limit positioning plate, the rear limit block, the front limit mounting seat and the front limit block work together to ensure positioning accuracy and effectively avoid workpiece scrap due to inaccurate positioning. Attached Figure Description

[0020] Figure 1 This is a perspective view of a positioning mechanism for a double-head cutting saw proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the fixed end saw blade of a positioning mechanism for a double-head cutting saw proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of the positioning plate of a positioning mechanism for a double-head cutting saw proposed in this utility model;

[0023] Figure 4 This is a schematic diagram of the rear limit block of a positioning mechanism for a double-head cutting saw proposed in this utility model.

[0024] Legend:

[0025] 101. Fixed saw head of a double-headed cutting saw; 102. Moving saw head of a double-headed cutting saw; 103. Protective cover for the fixed saw head; 104. Protective cover for the moving saw head; 105. Fixed end saw blade; 106. Moving end saw blade; 107. Fixed end clamping device; 108. Moving end clamping device; 109. Positioning mechanism; 201. Drive cylinder; 202. Positioning plate; 203. Mounting base plate; 204. Rear limit positioning plate; 205. Rear limit block; 206. Front limit mounting seat; 207. Front limit block; 208. Protective cover. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Reference Figures 1-4 An embodiment of this utility model provides a positioning mechanism for a double-head cutting saw, including a fixed saw head 101 and a movable saw head 102. A fixed end saw blade 105 is provided on the outside of the fixed saw head 101, a movable end saw blade 106 is provided on the outside of the movable saw head 102, and a positioning mechanism 109 is installed on the outside of the fixed saw head 101.

[0028] The positioning mechanism 109 includes a mounting base plate 203. The outer side of the mounting base plate 203 is mounted on the outer side of the fixed saw head 101 of the double-head cutting saw. A drive cylinder 201 is fixedly connected to the outer side of the mounting base plate 203. A positioning plate 202 is fixedly connected to the output end of the drive cylinder 201. A rear limit positioning plate 204 is mounted on the rear side of the drive cylinder 201. A rear limit block 205 is mounted on the outer side of the rear limit positioning plate 204. A front limit mounting seat 206 is provided on the outer side of the positioning plate 202. A front limit block 207 is mounted on the outer side of the mounting base plate 203.

[0029] Specifically, the fixed end saw blade 105 on the outside of the fixed saw head 101 of the double-headed cutting saw is used to cut the left end face of the workpiece, and the moving end saw blade 106 on the outside of the moving saw head 102 of the double-headed cutting saw can move according to the length of the workpiece and is responsible for cutting the right end face of the workpiece. In the positioning mechanism 109, the mounting base plate 203 is used to connect the various components of the positioning mechanism 109 and to install it on the outside of the fixed saw head 101 of the double-headed cutting saw. The drive cylinder 201 serves as a power source. When the piston rod extends, it drives the positioning plate 202 to the positioning position. When the piston rod retracts, the mechanism is in a standby state. The positioning plate 202 is used to position the workpiece. The rear limit positioning plate 204 cooperates with the rear limit block 205 to limit the extension position of the piston rod of the drive cylinder 201 and ensure the horizontal positioning accuracy of the positioning plate 202. The front limit mounting seat 206 and the front limit block 207 work together to ensure the vertical positioning accuracy of the positioning plate 202 when the piston rod of the drive cylinder 201 extends, and to prevent the positioning plate from sinking due to its own weight, which would affect the positioning accuracy.

[0030] Reference Figures 1-4 The inner wall of the fixed saw head 101 of the double-head cutting saw is equipped with a fixed end clamping device 107, and the inner wall of the movable saw head 102 of the double-head cutting saw is equipped with a movable end clamping device 108.

[0031] Specifically, when the workpiece is manually pressed against the positioning plate 202 and the saw is started, the fixed-end clamping device 107 and the moving-end clamping device 108 will press down synchronously through pneumatic control, using strong and stable pressure to firmly fix the workpiece on the cutting platform. During the cutting process of the workpiece by the fixed-end saw blade 105 and the moving-end saw blade 106, the two maintain a continuous clamping state, effectively preventing the workpiece from shifting or shaking, thereby ensuring that the cutting process can be carried out stably and accurately, and guaranteeing the cutting accuracy and quality of the workpiece.

[0032] Reference Figures 1-4 The top of the movable saw head 102 of the double-head cutting saw is provided with a movable saw head protective cover 104, the top of the fixed saw head 101 of the double-head cutting saw is provided with a fixed saw head protective cover 103, and a protective cover 208 is fixedly connected to the outside of the positioning plate 202.

[0033] Specifically, in the positioning mechanism of the double-head cutting saw, the movable saw head protective cover 104 and the fixed saw head protective cover 103 are pneumatically controlled for raising and lowering. They are lowered during sawing to block flying debris and sparks, protecting the operator's safety and preventing debris from damaging the equipment; after sawing, they are raised for easy operation. The protective cover 208 on the outside of the positioning plate 202 mainly protects the inside of the positioning mechanism, preventing chips from entering components such as the drive cylinder 201, avoiding jamming and wear, ensuring stable operation of the positioning mechanism, and maintaining accurate positioning.

[0034] Working principle: When in use, first adjust the position so that the plane of the positioning plate 202 is parallel to the fixed end saw blade 105 and about 5mm away from its left side plane, and then drive the cylinder 201 to link with the sawing machine through electrical control.

[0035] When the saw is in standby mode, the piston rod of the drive cylinder 201 extends, driving the positioning plate 202 to the positioning position to wait for the workpiece to be loaded. After the workpiece is loaded manually, the positioning end of the workpiece is pressed against the positioning plate 202, and then the saw is started. At this time, the fixed end pressing device 107 and the moving end pressing device 108 press down to firmly press the workpiece. Then, the piston rod of the drive cylinder 201 is controlled to retract, the positioning mechanism 109 enters the standby state, and at the same time the fixed saw head protective cover 103 and the moving saw head protective cover 104 are lowered, and the fixed end saw blade 105 and the moving end saw blade 106 are pushed forward to cut the workpiece.

[0036] After the fixed-end saw blade 105 and the moving-end saw blade 106 complete the cutting action on the workpiece, they immediately retract, the fixed saw head protective cover 103 and the moving saw head protective cover 104 rise, and then the piston rod of the drive cylinder 201 is extended, and the sawing machine returns to the standby state, thus completing one sawing cycle. During this process, the rear limit positioning plate 204 and the rear limit block 205 together limit the extension position of the piston rod of the drive cylinder 201 to ensure the horizontal positioning accuracy of the positioning plate 202; the front limit mounting seat 206 and the front limit block 207 ensure the vertical positioning accuracy of the positioning plate 202 and prevent it from sinking due to its own weight, while the protective cover 208 on the outside of the positioning plate 202 protects the positioning mechanism 109 from the influence of chips and ensures the stable operation of the mechanism.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A positioning mechanism for a double-head cutting saw, comprising a fixed saw head (101) and a movable saw head (102), characterized in that: The fixed saw head (101) of the double-head cutting saw is provided with a fixed end saw blade (105) on the outside, the movable saw head (102) of the double-head cutting saw is provided with a movable end saw blade (106) on the outside, and a positioning mechanism (109) is installed on the outside of the fixed saw head (101) of the double-head cutting saw. The positioning mechanism (109) includes a mounting base plate (203), which is mounted on the outside of the fixed saw head (101) of the double-head cutting saw. A drive cylinder (201) is fixedly connected to the outside of the mounting base plate (203). A positioning plate (202) is fixedly connected to the output end of the drive cylinder (201). A rear limit positioning plate (204) is installed on the rear side of the drive cylinder (201). A rear limit block (205) is installed on the outside of the rear limit positioning plate (204). A front limit mounting seat (206) is provided on the outside of the positioning plate (202). A front limit block (207) is installed on the outside of the mounting base plate (203).

2. The positioning mechanism for a double-head cutting saw according to claim 1, characterized in that: The inner wall of the fixed saw head (101) of the double-head cutting saw is equipped with a fixed end clamping device (107).

3. The positioning mechanism for a double-head cutting saw according to claim 1, characterized in that: The inner wall of the movable saw head (102) of the double-head cutting saw is equipped with a movable end clamping device (108).

4. The positioning mechanism for a double-head cutting saw according to claim 1, characterized in that: The top of the movable saw head (102) of the double-head cutting saw is provided with a movable saw head protective cover (104).

5. The positioning mechanism for a double-head cutting saw according to claim 1, characterized in that: The top of the fixed saw head (101) of the double-head cutting saw is provided with a fixed saw head protective cover (103).

6. The positioning mechanism for a double-head cutting saw according to claim 1, characterized in that: A protective cover (208) is fixedly connected to the outside of the positioning plate (202).

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