Accurate cutting device for extension ladder machining

Abstract

The utility model relates to the technical field of precise cutting of extension ladder part machining, in particular to a precise cutting device for extension ladder machining, which comprises a second motor, a first threaded rod and a shell, the end part of an output shaft of the second motor is fixedly connected with the right end of the outer wall of the first threaded rod, and the outer wall of the first threaded rod is in threaded connection with a first threaded seat; the lower end of the outer wall of the first threaded seat is fixedly connected with a first hydraulic cylinder. According to the precise cutting device for extension ladder machining, through cooperation of a precise cutting structure for extension ladder machining and a first hydraulic cylinder, two vertical plates are used for supporting a second box body, a sliding groove is formed in the inner wall of the second box body for supporting a first threaded seat, and the situation that in the prior art, due to the fact that a threaded sleeve is not limited, the machining precision is improved is avoided. And in the rotating process of the first threaded rod, the threaded sleeve can synchronously rotate along with the first threaded rod, so that the cutting movement of the cutting knife is interfered, the cutting work is favorably realized, and the cutting accuracy is also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of precision cutting for processing telescopic ladder parts, in particular to a precision cutting device for processing telescopic ladders. Background Art

[0002] A telescopic ladder is a ladder that can be stretched and shortened like a fishing rod. It is divided into two types: engineering telescopic ladders and bamboo telescopic ladders. It is very convenient to carry and store. It can be placed in a closet, study, under the bed or in the trunk of a car. When manufacturing a telescopic ladder, the parts need to be cut before use. A cutting device is widely used.

[0003] For example, a new type of steel plate precision cutting device with the authorization announcement number "CN217253191U" is provided with a protective shell, which can prevent the cutting knife from causing harm to the staff when cutting the workpiece, and plays a role of safety protection. At the same time, a shock-absorbing pad is provided. When the cutting device is cutting the workpiece, the shock-absorbing pad effectively alleviates the shaking of the cutting device, so that the cutting knife is more stable when cutting the workpiece, and the cutting accuracy is further improved. However, when the first threaded rod drives the threaded sleeve to move, since the threaded sleeve is not limited, the threaded sleeve will rotate synchronously with the first threaded rod during the rotation of the first threaded rod. The movement of the cutting knife is disturbed, which is not conducive to the cutting work and reduces the cutting accuracy. At the same time, the internal height of the clamping groove is fixed. If the steel plate thickness is higher than the steel plate inside the clamping groove, the limiting work cannot be achieved, and the limitation is high. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that when the first threaded rod drives the threaded sleeve to move, the threaded sleeve will rotate synchronously with the first threaded rod during the rotation of the first threaded rod because the threaded sleeve is not limited. The movement of the cutting knife is disturbed, which is not conducive to the cutting work and also reduces the cutting accuracy. At the same time, the internal height of the above-mentioned clamping groove is fixed. If the thickness of the steel plate is higher than the steel plate inside the clamping groove, the limiting work cannot be achieved, and the limitation is high. A precise cutting device for telescopic ladder processing is proposed.

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

[0006] A precision cutting device for telescopic ladder processing is designed, including a second motor, a first threaded rod, and a shell, the end of the output shaft of the second motor is fixedly connected to the right end of the outer wall of the first threaded rod, the outer wall of the first threaded rod is threadedly connected to the first threaded seat, the lower end of the outer wall of the first threaded seat is fixedly connected to a first hydraulic cylinder, the output end of the first hydraulic cylinder is fixedly connected to a third motor through a bracket, the output shaft of the third motor is connected to the rotating shaft of a saw blade through a coupling, the upper end of the inner wall of the shell is provided with a precision cutting structure for telescopic ladder processing, and the lower end of the inner wall of the shell is provided with a limiting structure for telescopic ladder processing.

[0007] Preferably, the precision cutting structure for processing the telescopic ladder includes a second hydraulic cylinder, the output end of the second hydraulic cylinder is fixedly connected to a second box body, the upper end of the outer wall of the second box body is fixedly connected to two vertical plates, the upper end of the inner wall of the outer shell is fixedly connected to two frames, the two vertical plates are both slidably connected to the frames, and the outer walls of the two vertical plates are both equipped with rollers.

[0008] Preferably, the bottom of the second hydraulic cylinder is fixedly connected to the inner wall of the outer shell, and the outer walls of the plurality of rollers are in contact with the inner walls of the two frames.

[0009] Preferably, the outer wall of the first threaded rod is rotatably connected to the inner wall of the second box body through a bearing, and the outer wall of the first threaded seat is slidably connected to the inner wall of the second box body.

[0010] Preferably, the limiting structure for processing the telescopic ladder includes a first box body, a first motor is fixedly connected to the right side of the outer wall of the first box body through a bracket, the end of the output shaft of the first motor is fixedly connected to a rotating shaft, the outer wall of the rotating shaft is rotatably connected to the inner wall of the first box body through a bearing, two first gears are fixedly connected to the outer wall of the rotating shaft, the two first gears are meshed with the second gears, the two second gear rotating shafts are rotatably connected to the inner wall of the first box body through bearings, the two second gear rotating parts are fixedly connected to the second threaded rods, the ends of the two second threaded rods are rotatably connected to the inner wall of the first box body through bearings, the outer walls of the two second threaded rods are threadedly connected to the second threaded seats, the outer walls of the two second threaded seats are slidably connected to the inner wall of the first box body, the outer walls of the two second threaded seats are fixedly connected to straight rods, the outer walls of the two straight rods are slidably connected to the first box body, and the ends of the two straight rods are fixedly connected to square plates.

[0011] Preferably, the lower end of the outer wall of the first box body is fixedly connected to the inner wall of the shell, and the upper end of the outer wall of the first box body is provided with a knife groove.

[0012] The utility model provides a precision cutting device for processing a telescopic ladder, which has the beneficial effects that: through the cooperation of the limiting structure and the knife groove for processing the telescopic ladder, the first motor is started to drive the rotating shaft to rotate through the bearing in the first box body, and the rotation of the rotating shaft drives the two first gears to rotate synchronously, thereby driving the two second gears to rotate through the shaft in the first box body through the two first gears, and the rotation of the two second gears respectively drives the second threaded rods to rotate through the bearing in the first box body, and the rotation of the two second threaded rods respectively drives the second threaded seats to slide relatively in the slide grooves processed on the inner wall of the first box body, thereby driving the straight rods to slide relatively in the first box body through the two second threaded seats, and the relative sliding of the two straight rods respectively drives the square plates to move relatively, and the two relatively moving square plates are used to tighten and limit the two sides of the telescopic ladder parts, which is suitable for cutting parts of different thicknesses and reduces limitations.

[0013] By cooperating with the precise cutting structure for telescopic ladder processing and the first hydraulic cylinder, the second hydraulic cylinder is started to drive the second box body to move right, and the second box body moves right to drive the two vertical plates to slide right in the frame respectively. The sliding of the two vertical plates to the right can drive multiple rollers on the outer wall to move right in the frame to play a supporting role. The second box body is supported by the two vertical plates and the first threaded seat is supported by the sliding groove on the inner wall of the second box body. This avoids the problem in the prior art that the thread sleeve will rotate synchronously with the first threaded rod during the rotation of the first threaded rod due to the lack of limiting of the thread sleeve. This causes the cutting knife cutting movement to be disturbed. This is beneficial to the cutting work and also improves the cutting accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 for Figure 1 A front view of

[0016] Figure 3 for Figure 2 A partial cross-sectional view of the front view;

[0017] Figure 4 for Figure 2 A front sectional view of a limiting structure for machining a medium telescopic ladder;

[0018] Figure 5 for Figure 2 A left partial sectional view of

[0019] Figure 6 for Figure 3 A is an enlarged view of the middle image.

[0020] In the figure: 1. a limiting structure for processing a telescopic ladder, 101. a first box body, 102. a first motor, 103. a rotating shaft, 104. a first gear, 105. a second gear, 106. a second threaded rod, 107. a second threaded seat, 108. a straight rod, 109. a square plate, 2. a precise cutting structure for processing a telescopic ladder, 201. a second hydraulic cylinder, 202. a second box body, 203. a vertical plate, 204. a roller, 205. a frame, 3. a housing, 4. a second motor, 5. a first threaded rod, 6. a first threaded seat, 7. a first hydraulic cylinder, 8. a third motor, 9. a saw blade, 10. a knife groove. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings:

[0022] See attached Figure 1-6 : In this embodiment, a precision cutting device for telescopic ladder processing includes a second motor 4, the second motor 4 adopts a servo motor, a first threaded rod 5, a housing 3, the end of the output shaft of the second motor 4 is fixedly connected to the right end of the outer wall of the first threaded rod 5, and the outer wall of the first threaded rod 5 is threadedly connected to the first threaded seat 6;

[0023] The lower end of the outer wall of the first threaded seat 6 is fixedly connected with a first hydraulic cylinder 7, and the first hydraulic cylinder 7 can meet the working needs according to actual needs. The output end of the first hydraulic cylinder 7 is fixedly connected with a third motor 8 through a bracket, and the third motor 8 can meet the working needs according to actual needs. The output shaft of the third motor 8 is connected to the rotating shaft of the saw blade 9 through a coupling, and the third motor 8 can drive the saw blade 9 to rotate through the coupling. The upper end of the inner wall of the shell 3 is provided with a precise cutting structure 2 for telescopic ladder processing, and the lower end of the inner wall of the shell 3 is provided with a limiting structure 1 for telescopic ladder processing;

[0024] The bottom of the second hydraulic cylinder 201 is fixedly connected to the inner wall of the housing 3. The second hydraulic cylinder 201 can meet the working requirements according to actual needs. The outer walls of the multiple rollers 204 are in contact with the inner walls of the two frames 205. The multiple rollers 204 can rotate in the two frames 205 respectively. The outer wall of the first threaded rod 5 is rotatably connected to the inner wall of the second box 202 through a bearing.

[0025] The first threaded rod 5 can rotate in the second box body 202 through the bearing, the outer wall of the first threaded seat 6 is slidably connected to the inner wall of the second box body 202, the inner wall of the second box body 202 is processed with a slide groove to support the first threaded seat 6, the lower end of the outer wall of the first box body 101 is fixedly connected to the inner wall of the outer shell 3, and the upper end of the outer wall of the first box body 101 is provided with a knife groove 10.

[0026] See attached Figure 1-3And 5-6: The precision cutting structure 2 for telescopic ladder processing includes a second hydraulic cylinder 201, the output end of the second hydraulic cylinder 201 is fixedly connected to the second box body 202, the upper end of the outer wall of the second box body 202 is fixedly connected to two vertical plates 203, the upper end of the inner wall of the outer shell 3 is fixedly connected to two frames 205, the two vertical plates 203 are both slidably connected to the frames 205, and the outer walls of the two vertical plates 203 are installed with rollers 204, and the multiple rollers 204 can be rotated on the outer walls of the two vertical plates 203 respectively through pins.

[0027] See attached Figure 1-2 4: The limiting structure 1 for telescopic ladder processing includes a first box body 101, and a first motor 102 is fixedly connected to the right side of the outer wall of the first box body 101 through a bracket. The first motor 102 adopts a servo motor, and a rotating shaft 103 is fixedly connected to the end of the output shaft of the first motor 102. The outer wall of the rotating shaft 103 is rotatably connected to the inner wall of the first box body 101 through a bearing;

[0028] The first motor 102 can drive the rotating shaft 103 to rotate in the first box body 101 through the bearing. The outer wall of the rotating shaft 103 is fixedly connected with two first gears 104. The rotation of the rotating shaft 103 can drive the two first gears 104 to rotate synchronously. The two first gears 104 are meshed and connected with the second gear 105. The rotating shafts of the two second gears 105 are rotatably connected with the inner wall of the first box body 101 through the bearing.

[0029] The rotation of the two first gears 104 can respectively drive the two second gears 105 to rotate in the first box body 101 through the bearings. The rotating parts of the two second gears 105 are fixedly connected with the second threaded rods 106. The threads of the two second threaded rods 106 are opposite. The ends of the threaded second threaded rods 106 are rotatably connected to the inner wall of the first box body 101 through the bearings. The rotation of the two second gears 105 can drive the second threaded rods 106 to rotate in the first box body 101 through the bearings.

[0030] The outer walls of the two second threaded rods 106 are threadedly connected to the second threaded seats 107, and the outer walls of the two second threaded seats 107 are slidably connected to the inner wall of the first box body 101. The first box body 101 is processed with a slide groove inside to support the two second threaded seats 107. The outer walls of the two second threaded seats 107 are fixedly connected to the straight rods 108, and the outer walls of the two straight rods 108 are slidably connected to the first box body 101. The two straight rods 108 can slide in the first box body 101, and the ends of the two straight rods 108 are fixedly connected to the square plates 109.

[0031] Working principle:

[0032] Precision cutting and limiting work for telescopic ladder processing:

[0033] When it is necessary to precisely cut the parts of the telescopic ladder, the parts are placed above the knife groove 10, and then the external power supply of the first motor 102 is turned on. The first motor 102 starts to drive the rotating shaft 103 to rotate in the first box 101 through the bearing. The rotation of the rotating shaft 103 drives the two first gears 104 to rotate synchronously, thereby driving the two second gears 105 to rotate in the first box 101 through the shaft through the two first gears 104 (such as Figure 4 ), the two second gears 105 rotate and respectively drive the second threaded rod 106 to rotate in the first box body 101 through the bearing (the threads of the two second threaded rods 106 are opposite), and the two second threaded rods 106 rotate and respectively drive the second threaded seat 107 to slide relatively in the slide groove processed on the inner wall of the first box body 101, so that the two second threaded seats 107 respectively drive the straight rod 108 to slide relatively in the first box body 101, and the relative sliding of the two straight rods 108 respectively drives the square plate 109 to move relatively, so that the two sides of the telescopic ladder parts can be tightened and limited by the relative movement of the two square plates 109. After the precise cutting process is completed, the first motor 102 is controlled to reverse, and the square plate 109 is released from the clamping of the telescopic ladder parts, and finally it is taken out.

[0034] Precision cutting work for telescopic ladder processing:

[0035] After the telescopic ladder parts are limited, the external power supply of the second motor 4 is turned on, the second motor 4 starts to drive the first threaded rod 5 to rotate in the second box body 202 through the bearing, and the first threaded rod 5 rotates and the first threaded seat 6 slides to the left in the slide groove processed on the inner wall of the second box body 202 (such as Figure 3 ), such movement can drive the saw blade 9 at the lower end to move to the left to adjust the position through the first threaded seat 6, when the saw blade 9 moves to the part cutting, the second motor 4 stops rotating, then the external power supply of the third motor 8 is turned on, the third motor 8 starts to drive the saw blade 9 to rotate through the coupling, then the first hydraulic cylinder 7 is started to drive the third motor 8 and the saw blade 9 to move downward to cut the parts of the telescopic ladder, then the second hydraulic cylinder 201 is started to drive the second box body 202 to move to the right, and the second box body 202 moves to the right to drive the two vertical plates 203 to slide to the right in the frame 205 respectively (such as Figure 5 ), the two vertical plates 203 slide to the right to drive the multiple rollers 204 on the outer wall to move to the right in the frame 205 to play a supporting role, and such movement can drive the lower end saw blade 9 to move forward through the second box body 202 to cut the remaining parts of the telescopic end parts (such as Figure 1 ).

[0036] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A precision cutting device for telescopic ladder processing, comprising a second motor (4), a first threaded rod (5), and a housing (3), wherein the end of the output shaft of the second motor (4) is fixedly connected to the right end of the outer wall of the first threaded rod (5), characterized in that: The outer wall of the first threaded rod (5) is threadedly connected to the first threaded seat (6); the lower end of the outer wall of the first threaded seat (6) is fixedly connected to a first hydraulic cylinder (7); the output end of the first hydraulic cylinder (7) is fixedly connected to a third motor (8) via a bracket; the output shaft of the third motor (8) is connected to the rotating shaft of the saw blade (9) via a coupling; the upper end of the inner wall of the outer shell (3) is provided with a precise cutting structure (2) for processing a telescopic ladder; and the lower end of the inner wall of the outer shell (3) is provided with a limiting structure (1) for processing a telescopic ladder.

2. The precision cutting device for telescopic ladder processing according to claim 1, characterized in that: The precision cutting structure (2) for telescopic ladder processing comprises a second hydraulic cylinder (201), the output end of the second hydraulic cylinder (201) is fixedly connected to a second box (202), the upper end of the outer wall of the second box (202) is fixedly connected to two vertical plates (203), the upper end of the inner wall of the outer shell (3) is fixedly connected to two frames (205), the two vertical plates (203) are slidably connected to the frames (205), and the outer walls of the two vertical plates (203) are installed with rollers (204).

3. The precision cutting device for telescopic ladder processing according to claim 2, characterized in that: The bottom of the second hydraulic cylinder (201) is fixedly connected to the inner wall of the outer shell (3), and the outer walls of the plurality of rollers (204) are in contact with the inner walls of the two frames (205).

4. The precision cutting device for telescopic ladder processing according to claim 1, characterized in that: The outer wall of the first threaded rod (5) is rotatably connected to the inner wall of the second box body (202) via a bearing, and the outer wall of the first threaded seat (6) is slidably connected to the inner wall of the second box body (202).

5. The precision cutting device for telescopic ladder processing according to claim 1, characterized in that: The telescopic ladder processing limiting structure (1) comprises a first box body (101), a first motor (102) is fixedly connected to the right side of the outer wall of the first box body (101) through a bracket, a rotating shaft (103) is fixedly connected to the end of the output shaft of the first motor (102), the outer wall of the rotating shaft (103) is rotatably connected to the inner wall of the first box body (101) through a bearing, two first gears (104) are fixedly connected to the outer wall of the rotating shaft (103), the two first gears (104) are meshed and connected to the second gear (105), and the rotating shafts of the two second gears (105) are rotatably connected to the inner wall of the first box body (101) through bearings. The rotating parts of the two second gears (105) are fixedly connected with second threaded rods (106); the ends of the two second threaded rods (106) are rotatably connected to the inner wall of the first box body (101) through bearings; the outer walls of the two second threaded rods (106) are threadedly connected to the second threaded seats (107); the outer walls of the two second threaded seats (107) are slidably connected to the inner wall of the first box body (101); the outer walls of the two second threaded seats (107) are fixedly connected with straight rods (108); the outer walls of the two straight rods (108) are slidably connected to the first box body (101); and the ends of the two straight rods (108) are fixedly connected with square plates (109).

6. The precision cutting device for telescopic ladder processing according to claim 5, characterized in that: The lower end of the outer wall of the first box body (101) is fixedly connected to the inner wall of the outer shell (3), and the upper end of the outer wall of the first box body (101) is provided with a knife groove (10).

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