Cable cutting device

Abstract

The utility model discloses a cable cutting device which comprises a machine frame, an upper cutter, a lower cutter and an air cylinder, the upper cutter, the lower cutter and the air cylinder are installed on the machine frame, the lower cutter is fixedly installed on the machine frame, the upper cutter is movably arranged on the upper right portion of the lower cutter, and the air cylinder is configured to drive the upper cutter to move up and down. The device is characterized in that the lower cutter is installed on the rack through a first installation part, a sliding plate is vertically installed on the rack in a sliding mode, the top of the upper cutter is installed on the bottom face of the sliding plate through a second installation part, and an output shaft at the bottom of the air cylinder is connected with the top of the sliding plate. The left side wall of the upper cutter is flush with the right side wall of the lower cutter. According to the utility model, the service life of the cutter is prolonged, and the maintenance and replacement convenience is also improved.

Description

Technical Field

[0001] The utility model relates to the field of cable production and processing, in particular to a cable cutting device. Background Technique

[0002] Cable harnesses are mainly used for power transmission, signal transmission, etc. between equipment and power supplies, and between equipment. Among them, when making a cable harness, the cable is cut into a predetermined length, and then connectors are installed at both ends thereof, so as to realize the production of the cable harness.

[0003] However, when cutting the cable, in order to prevent the cable from being too long, the length of the cable is generally greater than the required length, and the excess cable is cut off before connecting the connector subsequently. In the prior art, when cutting the cable, a semi-automatic cable cutting device is generally used, and the cable is cut by the approach of upper and lower cutting knives, or a circular cutting knife rotating at a high speed is used to cut the cable. Among them, for the most conventional cable cutting, the upper and lower cutting knives are generally used to approach each other to cut the cable. In order to facilitate the cable without being affected during the cutting process, the upper and lower cutting knives are arranged in a staggered manner. If the thickness of the cutting knife is relatively thick, it will affect the cutting quality of the cable. Therefore, the cutting knife will be set as thin as possible. Since the cable has copper wires or aluminum wires inside, when cutting the cable, the cutting knife is prone to breakage or deformation due to its relatively thin thickness, and it is not convenient for maintenance and replacement. Therefore, how to solve the above technical problems is the direction that those skilled in the art need to strive for. Summary of the Invention

[0004] The purpose of the utility model is to provide a cable cutting device, by using this structure, the strength of the cutting knife can be increased, and the convenience of maintenance and replacement can also be improved.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: a cable cutting device, including a frame, an upper cutting knife, a lower cutting knife and a cylinder installed on the frame, the lower cutting knife is fixedly installed on the frame, the upper cutting knife is movably arranged above the right of the lower cutting knife, and the cylinder is configured to drive the upper cutting knife to move up and down.

[0006] The lower cutting knife is installed on the frame through a first mounting member, the first mounting member includes a bottom plate and two lower positioning plates arranged on the right side of the bottom plate, the two lower positioning plates are respectively installed at the front end and the rear end of the right side of the bottom plate, a lower card slot is arranged on the inner side wall of each lower positioning plate, the lower sides of both sides of the lower cutting knife are respectively clamped in the lower card slots of the two lower positioning plates, the lower cutting knife is connected to the bottom plate through bolts, and the top of the lower cutting knife is arranged above the top surfaces of the lower positioning plate and the bottom plate.

[0007] A slide plate is vertically and slidably mounted on the frame. The top of the upper cutter is mounted on the bottom surface of the slide plate through a second mounting member. The output shaft at the bottom of the air cylinder is connected to the top of the slide plate. The left side wall of the upper cutter is flush with the right side wall of the lower cutter, or there is a horizontal gap between the left side surface of the upper cutter and the right side surface of the lower cutter.

[0008] In the above technical solution, the left side surface of the lower card slot is communicated with the left side surface of the lower positioning plate, and the left side wall of the lower cutter is attached to the right side surface of the bottom plate.

[0009] In the above technical solution, at least two guide posts are provided on the frame, and the slide plate is slidably connected to the guide posts.

[0010] In the above technical solution, a column and a limit screw are provided on the frame below the slide plate. A screw hole is provided at the top of the column, and the bottom of the limit screw is screwed to the screw hole;

[0011] When the output shaft of the air cylinder extends out, the bottom surface of the slide plate abuts against the top surface of the limit screw.

[0012] In the above technical solution, a limit nut is screwed on the limit screw, and the bottom surface of the limit nut abuts against the top surface of the column.

[0013] In the above technical solution, the second mounting member includes an upper mounting plate and two upper positioning plates arranged on the left side of the upper mounting plate. The two upper positioning plates are respectively mounted at the front end and the rear end on the left side of the upper mounting plate. An upper card slot is provided on the inner side wall of each upper positioning plate. The upper two sides of the upper cutter are respectively clamped in the lower card slots of the two upper positioning plates. The upper cutter is connected to the upper mounting plate by bolts, and the bottom of the upper cutter is arranged below the bottom surfaces of the lower positioning plate and the upper mounting plate.

[0014] In the above technical solution, the right end of the lower card slot is communicated with the right side surface of the lower positioning plate, and the right side wall of the upper cutter is attached to the left side surface of the upper mounting plate.

[0015] In the above technical solution, the upper mounting plate is mounted on the bottom surface of the slide plate, and the tops of the upper positioning plate and the upper cutter abut against the bottom surface of the slide plate.

[0016] In the above technical solution, a control switch electrically connected to the air cylinder is further provided on the frame.

[0017] In the above technical solution, the middle part of the top surface of the lower cutter is an arc-shaped structure that is concave downward, and the middle part of the bottom surface of the upper cutter is an arc-shaped structure that is concave upward.

[0018] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0019] 1. In the utility model, the lower cutting knife is installed on the frame through the first mounting member, and the upper cutting knife is installed on the frame through the first mounting member. The upper cutting knife is installed on the sliding plate through the second mounting member. The first mounting member and the second mounting member are used to fix and position the upper and lower cutting knives respectively. In this way, thinner upper and lower cutting knives can be adopted, while ensuring the cutting stability of the upper and lower cutting knives for the cable, and also preventing the strength and firmness of the upper and lower cutting knives, reducing the maintenance rate, and being convenient for maintenance and replacement at the same time;

[0020] 2. In the utility model, by using the corresponding positioning plates to reinforce and limit the two ends of the cutting knife, and using the corresponding bottom plate and upper mounting plate to fix and support the cutting knife, the stability and strength of the cutting knife during the cable cutting process can be effectively ensured, and the cutting knife can be prevented from deforming and cracking;

[0021] 3. In the utility model, a limit screw is also provided. The limit screw is screwed to the column, so that it is convenient to adjust the vertical distance between the limit screw and the top surface of the lower cutting knife, thereby adjusting the descending height of the upper cutting knife, shortening the cutting distance as much as possible, and improving the cutting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural view of Embodiment 1 of the utility model;

[0023] Figure 2 is Figure 1 the left view of.

[0024] Wherein: 1, frame; 2, upper cutting knife; 3, lower cutting knife; 4, cylinder; 5, bottom plate; 6, lower positioning plate; 7, lower card slot; 8, sliding plate; 9, control switch; 10, guide post; 11, column; 12, limit screw; 13, screw hole; 14, limit nut; 15, upper mounting plate; 16, upper positioning plate; 17, upper card slot; 18, bolt; 19, arc structure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following further describes the utility model in conjunction with the drawings and embodiments:

[0026] Embodiment 1: Refer to Figure 1 , 2 As shown, a cable cutting device includes a frame 1, an upper cutting knife 2, a lower cutting knife 3 and a cylinder 4 installed on the frame 1. The lower cutting knife 3 is fixedly installed on the frame 1, the upper cutting knife 2 is movably arranged above the right of the lower cutting knife 3, and the cylinder 4 is configured to drive the upper cutting knife 2 to move up and down.

[0027] The lower cutting knife 3 is installed on the frame 1 through a first mounting member. The first mounting member includes a bottom plate 5 and two lower positioning plates 6 arranged on the right side of the bottom plate. The two lower positioning plates 6 are respectively installed at the front end and the rear end of the right side of the bottom plate 5. A lower clamping groove 7 is provided on the inner side wall of each lower positioning plate 6. The two sides below the lower cutting knife 3 are respectively clamped in the lower clamping grooves 7 of the two lower positioning plates 6. The lower cutting knife 3 is connected to the bottom plate 5 through bolts 18, and the top of the lower cutting knife 3 is arranged above the top surfaces of the lower positioning plates 6 and the bottom plate 5.

[0028] A slide plate 8 is vertically and slidably installed on the frame 1. The top of the upper cutting knife 2 is installed on the bottom surface of the slide plate 8 through a second mounting member. The output shaft at the bottom of the air cylinder 4 is connected to the top of the slide plate 8. The left side wall of the upper cutting knife 2 is flush with the right side wall of the lower cutting knife 3, or there is a lateral gap between the left side surface of the upper cutting knife 2 and the right side surface of the lower cutting knife 3. Among them, there is a micro-gap between the left side surface of the upper cutting knife and the right side surface of the lower cutting knife to prevent the upper cutting knife from moving down and colliding with the lower cutting knife.

[0029] In this embodiment, a control switch 9 electrically connected to the air cylinder 4 is further provided on the frame 1 to control the operation of the air cylinder through the control switch. During use, in the initial state, the output shaft of the air cylinder is in the retracted state. The cable is placed between the upper cutting knife and the lower cutting knife, and the cable cutting position is opposite to the left side surface of the upper cutting knife and the right side surface of the lower cutting knife. Then the operator controls the operation of the air cylinder through the control switch. During operation, after the output shaft extends and then retracts, a movement is completed. During this process, please drive the slide plate to move downward. When the slide plate moves downward, the upper cutting knife is synchronously driven to move downward, and the cable is cut by the left side at the bottom of the upper cutting knife and the right side at the top of the lower cutting knife. Among them, the bottom of the upper cutting knife is the upper blade, the bottom surface of the upper blade is inclined upward from left to right, the top of the lower cutting knife is the lower blade, and the top surface of the lower blade is inclined downward from right to left. In this way, the cable is cut when the upper cutting knife and the lower cutting knife approach each other.

[0030] Among them, two connecting screw holes are provided on the bottom plate, and two through holes are provided at the bottom of the lower cutter facing the connecting screw holes. Bolts are passed through the through holes and the connecting screw holes to achieve the fixation of the lower cutter and the bottom plate. In this way, the lower cutter is not only fixed to the bottom plate, but also the front and rear sides of the lower cutter can be limited and reinforced by the lower card slot, so that when the lower cutter is subjected to force during the cable cutting process, it can not only be limited by the bottom plate and the bolts, but also the lower card slot can be used to limit the deformation of the lower cutter moving forward and backward and moving left and right, thereby ensuring the strength and service life of the lower cutter and reducing the maintenance rate. In addition, when the lower cutter needs to be repaired and replaced, the bolts can be directly removed, and the lower cutter can be lifted up and separated from the lower card slot to achieve the quick removal of the lower cutter. When installing, the two sides of the lower cutter are directly inserted into the lower card slot, and then the lower cutter and the bottom plate are quickly connected and fixed by bolts.

[0031] The setting of the slide plate can guide the movement of the upper cutter, so that the upper cutter can move up and down stably.

[0032] See also Figure 1 , 2 As shown, the left side of the lower slot 7 is connected to the left side of the lower positioning plate 6, and the left side wall of the lower cutter 3 is in contact with the right side of the bottom plate 5. The right side wall of the bottom plate is used to support and limit the left side of the lower cutter, thereby increasing the contact area of ​​the lower cutter, thereby further enhancing the strength of the cutter and preventing the deformation of the cutter.

[0033] See also Figure 1 , 2 As shown, at least two guide posts 10 are provided on the frame 1 , and the slide plate 8 is slidably connected to the guide posts 10 .

[0034] In this embodiment, there are two guide posts, which are arranged at the rear side of the first mounting member. The left side and the rear side of the rear end of the slide plate are respectively connected to the two guide posts in a sliding manner. In this way, when the operator grabs the cable and puts it between the upper and lower cutters, there are no guide posts in front of the upper and lower cutters, which does not affect the operator's picking and placing action of cutting the cable. The guide posts are arranged to move the slide plate vertically. The guide posts are arranged parallel to the output shaft of the cylinder, so as to ensure that when the upper cutter moves, it is arranged parallel to the guide posts, thereby ensuring the stability and quality of the cutting.

[0035] See also Figure 1 , 2 As shown, a column 11 and a limiting screw 12 are provided on the frame 1 below the slide plate 8, a screw hole 13 is provided on the top of the column 11, and the bottom of the limiting screw 12 is screwed and connected to the screw hole 13;

[0036] When the output shaft of the cylinder 4 is extended, the bottom surface of the slide plate 8 abuts against the top surface of the limiting screw 12 .

[0037] Among them, when the output shaft of the cylinder fully extends, the bottom of the upper cutter will approach the bottom of the lower cutter. If the cable diameter is slightly larger, when the upper cutter moves down to cut the cable, the end of the cable at the right end of the upper cutter will move down as the upper cutter moves down. As a result, the upper cutter may flatten the end of the cable, affecting the quality of the cable. Under normal circumstances, as long as the bottom plane of the upper cutter is below the top plane of the lower cutter, the cable can be cut. However, there may also be an adhesion situation (the insulating skin outside the cable is a flexible material, so an adhesion situation may occur). Therefore, the upper cutter needs to move down a certain distance to completely cut the cable. At the same time, in order to improve the cutting efficiency, shorten the stroke of the cylinder, and prevent the end of the cable from being flattened, by setting up a column and a limit screw, the limit screw is screwed into the screw hole of the column, and the distance between the top of the limit screw and the top surface of the column can be adjusted. In this way, when the output shaft of the vertical cylinder extends (the stroke adjustment of the cylinder is unstable and inaccurate), driving the slide plate and the upper cutter to move down, the normal cable cutting action is performed. When the bottom surface of the slide plate abuts against the top of the limit screw, the downward movement of the upper cutter is in place. During this process, after the cylinder is subjected to resistance, the output shaft of the cylinder automatically retracts to complete the cutting of the cable.

[0038] When replacing cables with different diameters, rotate the limit screw to adjust the distance between the top of the limit screw and the top surface of the column, so as to adjust the downward movement distance of the upper cutter, which is suitable for cutting cables with different diameters, and can also shorten the stroke as much as possible to improve the cutting efficiency of the cable.

[0039] See Figure 1 、 2 As shown, a limit nut 14 is screwed onto the limit screw 12, and the bottom surface of the limit nut 14 abuts against the top surface of the column 11.

[0040] Furthermore, in this embodiment, since there will be an impact between the slide plate when it moves down in place and the limit screw, that is, the slide plate generates an impact force on the limit screw, the screwed position of the limit screw and the column is likely to become loose. However, it is not clear whether the limit bolt moves up or down. Therefore, by setting up a limit nut, the bottom surface of the limit nut abuts against the top surface of the column. In this way, the limit screw can only rotate relative to the column in one direction, causing the top of the limit screw to move upward and preventing it from moving downward. When it moves downward, it can be limited by the limit nut. If it moves upward, the nut will also move upward, and it can be discovered and adjusted by the staff in a timely manner. The limit nut further limits the rotation of the limit bolt on the basis of the screwed connection between the limit bolt and the screw hole.

[0041] See Figure 1 、 2As shown, the second mounting member includes an upper mounting plate 15 and two upper positioning plates 16 disposed on the left side of the upper mounting plate 15. The two upper positioning plates 16 are respectively mounted at the front end and the rear end of the left side of the upper mounting plate 15. An upper card slot 17 is provided on the inner side wall of each upper positioning plate 16. The upper two sides of the upper cutter 2 are respectively clamped in the lower card slots 17 of the two upper positioning plates 16. The upper cutter 2 is connected to the upper mounting plate 15 by bolts 18, and the bottom of the upper cutter 2 is disposed below the bottom surfaces of the lower positioning plate 16 and the upper mounting plate 15.

[0042] The right end of the lower card slot 17 is communicated with the right side surface of the lower positioning plate 16, and the right side wall of the upper cutter 2 is attached to the left side surface of the upper mounting plate 15.

[0043] Among them, in this embodiment, the structures of the second mounting member and the first mounting member are basically the same. Two connecting screw holes are also provided on the upper mounting plate, and two through holes are also provided on the upper cutter. The bolts pass through the through holes and the connecting screw holes for connection to realize the fixation of the upper cutter and the upper mounting plate. And in this way, the left-right movement and the front-back movement of the upper cutter will be limited by the upper card slot and the upper mounting plate, and the upper mounting plate can support the upper cutter, so as to increase the strength of the upper cutter. The upper cutter can also be set thinner, and the cutting of the cable is smoother and more stable. At the same time, the installation and disassembly of the upper cutter are basically the same as those of the lower cutter, so the installation, disassembly and replacement of the upper cutter are convenient and fast.

[0044] Among them, the upper mounting plate is mounted on the bottom surface of the sliding plate, and the tops of the upper positioning plate and the upper cutter abut against the bottom surface of the sliding plate. This can also limit the top of the upper cutter by the sliding plate, so that when the upper cutter moves down to cut the cable, it plays a role in limiting the upper cutter, reducing the stress on the bolts between the upper mounting plate and the upper cutter, and prolonging the service life.

[0045] See Figure 1 、 2 As shown, the middle part of the top surface of the lower cutter 3 is a downwardly concave arc structure 19, and the middle part of the bottom surface of the upper cutter 2 is an upwardly concave arc structure 19.

[0046] In this embodiment, the cutting edges of the upper cutter and the lower cutter are arc-shaped surfaces. In this way, when the cable is placed between the two, the cable will be located between the upper cutter and the lower cutter. When the upper cutter moves down to cut the cable, when the cable is subjected to the cutting force, its front-back movement will also be limited by the corresponding arc-shaped surfaces to a certain extent, preventing it from falling between the upper and lower cutters during the cutting process, and ensuring the cutting stability and quality.

Claims

1. A cable cutting device, comprising a frame, an upper cutter mounted on the frame, a lower cutter and a cylinder, wherein the lower cutter is fixedly mounted on the frame, the upper cutter is movably arranged above the lower cutter, and the cylinder is configured to drive the upper cutter to move up and down, characterized in that: The lower cutter is installed on the frame via a first mounting member, the first mounting member comprises a bottom plate and two lower positioning plates arranged on the right side of the bottom plate, the two lower positioning plates are respectively installed at the front end and the rear end of the right side of the bottom plate, a lower clamping groove is provided on the inner side wall of each lower positioning plate, the lower two sides of the lower cutter are respectively clamped in the lower clamping grooves of the two lower positioning plates, the lower cutter is connected to the bottom plate via bolts, and the top of the lower cutter is arranged above the top surfaces of the lower positioning plates and the bottom plate; A slide plate is vertically slidably mounted on the frame, the top of the upper cutter is mounted on the bottom surface of the slide plate via a second mounting member, the output shaft at the bottom of the cylinder is connected to the top of the slide plate, the left side wall of the upper cutter is flush with the right side wall of the lower cutter, or there is a horizontal gap between the left side surface of the upper cutter and the right side surface of the lower cutter.

2. The cable cutting device according to claim 1, characterized in that: The left side surface of the lower clamping groove is communicated with the left side surface of the lower positioning plate, and the left side wall of the lower cutting knife is in contact with the right side surface of the bottom plate.

3. The cable cutting device according to claim 1, characterized in that: At least two guide posts are arranged on the frame, and the slide plate is slidably connected to the guide posts.

4. The cable cutting device according to claim 1, characterized in that: A column and a limiting screw are provided on the frame below the slide, a screw hole is provided on the top of the column, and the bottom of the limiting screw is screwed to the screw hole; When the cylinder output shaft is extended, the bottom surface of the slide plate abuts against the top surface of the limiting screw.

5. The cable cutting device according to claim 4, characterized in that: A limiting nut is threadedly connected to the limiting screw rod, and the bottom surface of the limiting nut abuts against the top surface of the column.

6. The cable cutting device according to claim 1, characterized in that: The second mounting member includes an upper mounting plate and two upper positioning plates arranged on the left side of the upper mounting plate, the two upper positioning plates are respectively installed at the front end and the rear end of the left side of the upper mounting plate, an upper clamping groove is provided on the inner side wall of each of the upper positioning plates, the upper two sides of the upper cutter are respectively clamped in the lower clamping grooves of the two upper positioning plates, the upper cutter is connected to the upper mounting plate via bolts, and the bottom of the upper cutter is arranged below the bottom surface of the lower positioning plate and the upper mounting plate.

7. The cable cutting device according to claim 6, characterized in that: The right end of the lower clamping groove is communicated with the right side surface of the lower positioning plate, and the right side wall of the upper cutter is in contact with the left side surface of the upper mounting plate.

8. The cable cutting device according to claim 7, characterized in that: The upper mounting plate is mounted on the bottom surface of the slide plate, and the top of the upper positioning plate and the upper cutter are against the bottom surface of the slide plate.

9. The cable cutting device according to claim 1, characterized in that: The frame is also provided with a control switch which is electrically connected to the cylinder.

10. The cable cutting device according to claim 1, characterized in that: The middle part of the top surface of the lower cutter is a concave arc structure, and the middle part of the bottom surface of the upper cutter is a concave arc structure.

Images