Equipment for cutting copper bar heat-shrinkable sleeve

Abstract

The utility model discloses equipment for cutting a heat-shrinkable sleeve of a copper bar, which realizes automatic cutting of the heat-shrinkable sleeve on the surface of the copper bar and can meet different size requirements, and comprises a machine table which is provided with a cutting station; a pair of symmetrically-arranged side cutter assemblies are arranged in the left-right direction of the cutting station, and an upper cutter assembly and a lower cutter assembly are arranged in the up-down direction of the cutting station. A channel allowing a to-be-cut copper bar to enter is defined by the side cutter assembly, the upper cutter assembly and the lower cutter assembly, and a length fixing assembly is arranged at the other end of the channel. The length direction of the channel is defined as the X axis, the horizontal direction perpendicular to the X axis is defined as the Y axis, and the direction perpendicular to the XY plane is defined as the Z axis; the side cutter assembly is provided with a side cutter moving along the Y axis. The upper cutter assembly is provided with an upper cutter moving along the Z axis and a pressing rod. The lower cutter assembly is provided with a lower cutter moving along the Z axis. The fixed-length assembly is provided with a limiting block which adjusts the position along the X axis and is used for limiting the length of the copper bar entering the channel.

Description

TECHNICAL FIELD

[0001] The utility model belongs to copper bar sleeve technology field especially points to a kind of equipment for cutting copper bar heat shrink sleeve. BACKGROUND

[0002] In production and processing process, the surface of copper bar is usually wrapped with heat shrink sleeve of specific color, for distinguishing phase sequence and insulation protection.

[0003] Heat shrink sleeve is a kind of plastic sleeve, also known as heat shrink protective sleeve, with high-temperature shrinkage, soft flame-retardant, insulation and corrosion resistance, etc. When heated by heat source (such as hot air gun) in high-temperature processing, heat shrink sleeve will shrink and tightly wrap the surface of copper bar. Generally, the size of heat shrink sleeve after shrinking is not completely controllable, which may cover the end of copper bar, lap hole, etc. Therefore, it is necessary to remove the excess heat shrink sleeve wrapped on the surface of copper bar in actual use.

[0004] At present, the cutting of heat shrink sleeve on the surface of copper bar is mainly done by manual work, which has the disadvantages of low cutting efficiency and high labor intensity, and the cutting quality is highly dependent on the experience, operation method and responsibility of workers, and it is easy to scratch the surface of copper bar. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide a kind of equipment for cutting copper bar heat shrink sleeve, to solve the problems existing in the prior art, to realize automatic cutting of heat shrink sleeve on the surface of copper bar, and to meet different size requirements.

[0006] In order to achieve the above purpose, the solution of the utility model is as follows:

[0007] A kind of equipment for cutting copper bar heat shrink sleeve, including machine table, the machine table is provided with cutting station;A pair of symmetrical side cutter assemblies are arranged in the left and right directions of the cutting station, and upper cutter assembly and lower cutter assembly are arranged in the up and down directions of the cutting station respectively;The passage for entering the copper bar to be cut is formed between the side cutter assembly, the upper cutter assembly and the lower cutter assembly, and the other end of the passage is provided with fixed length assembly;The length direction of the passage is defined as X axis, the horizontal direction perpendicular to X axis is defined as Y axis, and the direction perpendicular to XY plane is defined as Z axis;The side cutter assembly is provided with side cutter moving along Y axis;The upper cutter assembly is provided with upper cutter moving along Z axis and pressure rod;The lower cutter assembly is provided with lower cutter moving along Z axis;The fixed length assembly is provided with limiting block adjusting position along X axis, for limiting the length of copper bar entering the passage.

[0008] The side cutting tool assembly comprises a slide base moving along the Y axis, a slide block slidingly fitted in the slide base along the Y axis, and a Y axis cylinder mounted at the end of the slide base; the side cutting tool is mounted on the slide block; the slide base is provided with a Y axis sliding groove for slidingly fitting the slide block, the upper and lower surfaces of the slide block are both provided with shaft portions abutting against the inner wall of the Y axis sliding groove, and the end of the slide block is provided with a connecting port; the cylinder joint of the Y axis cylinder is movably fitted in the connecting port to realize the transmission connection between the Y axis cylinder and the slide block.

[0009] Preferably, one of the upper and lower surfaces of the slide block and the inner wall of the Y axis sliding groove are provided with a round head pin and a spring; the spring and the round head pin are sequentially embedded in the counterbore formed on the surface of the slide block, the round head pin extends out of the surface of the slide block and abuts against the inner wall of the Y axis sliding groove under the action of the spring, and is used for driving the slide block to reset.

[0010] Preferably, the inner wall of the connecting port is convexly formed with a curved surface.

[0011] Preferably, the upper and lower sides of the Y axis sliding groove are both mounted with a first limiting plate, and the left and right sides of the Y axis sliding groove are both mounted with a second limiting plate; the Y axis cylinder is mounted on one of the second limiting plates, and the cylinder joint is provided through the second limiting plate.

[0012] Preferably, the side cutting tool assembly comprises a first moving plate for mounting the slide base, a Y axis lead screw for driving the first moving plate, and a Y axis motor for driving the Y axis lead screw; the base of the side cutting tool assembly is provided with a first sliding rail for slidingly fitting the first moving plate and a lead screw fixing seat for mounting the Y axis lead screw; the first moving plate is mounted with a first lead screw nut for threadedly connecting the Y axis lead screw.

[0013] The upper cutting tool assembly comprises a longitudinal cutting tool arranged along the X axis direction, and the longitudinal cutting tool moves synchronously with the upper cutting tool; the limiting block is provided with a displacement slot for avoiding the longitudinal cutting tool.

[0014] The upper cutting tool assembly comprises an upper fixed base mounted on the machine table, a first Z axis cylinder and a second Z axis cylinder mounted on the side of the upper fixed base, and a first lifting plate driven by the first Z axis cylinder; the upper cutting tool is mounted on the first lifting plate, and the pressing rod is mounted on the output end of the second Z axis cylinder.

[0015] Preferably, the upper cutting tool assembly comprises an upper fixed block mounted on the machine table and located below the upper fixed base, and the upper fixed block and the first lifting plate are provided with an upper guide column and an upper guide sleeve which are slidingly fitted.

[0016] The lower cutter assembly comprises a lower fixed base installed below the machine table, a third Z-axis cylinder installed on the lower surface of the lower fixed base, and a second lifting plate movably connected to the upper surface of the lower fixed base and driven by the third Z-axis cylinder; the lower cutter is installed on the second lifting plate.

[0017] Preferably, a floating joint is arranged between the output end of the third Z-axis cylinder and the second lifting plate; and a lower guide column and a lower guide sleeve are arranged in sliding fit between the second lifting plate and the lower fixed base.

[0018] The length fixing assembly comprises a length fixing base installed on the machine table, an X-axis motor installed on the length fixing base, and a second moving plate connected to the X-axis motor in transmission and moving along the X-axis direction; the limiting block is installed on the second moving plate.

[0019] Preferably, an X-axis screw rod is arranged on the length fixing base in parallel with the X-axis motor, and a second sliding rail is arranged in sliding fit with the second moving plate, the second sliding rail being arranged in parallel with the X-axis screw rod; the X-axis screw rod and the X-axis motor are in transmission through a belt, and the second screw rod nut is threadedly connected to the lower surface of the second moving plate; the length fixing assembly further comprises an X-axis cylinder installed on the second moving plate, and the limiting block is installed on the output end of the X-axis cylinder.

[0020] An arc-shaped cutting edge is arranged on the cutting edge of the side cutter.

[0021] A thermocouple and a heating rod are installed in each of the side cutter, the upper cutter and the lower cutter.

[0022] A dust cover is arranged on the surface of the machine table, for covering the side cutter assembly, the upper cutter assembly, the lower cutter assembly and the length fixing assembly, and an inlet is reserved for the copper bar to enter; an operation panel is further installed on the machine table.

[0023] After the above technical scheme is adopted, the utility model has the following technical effects:

[0024] The utility model discloses a cutting position is arranged on the machine table in the up-down and left-right directions, and the copper bar can be pressed and fixed on the cutting position by the pressing rod during cutting, and the heat shrink sleeve is cut in different directions on the surface of the copper bar by the side cutter, the upper cutter and the lower cutter, realizing automatic production; under the cooperation of the mechanical structure, the cutting force of each cutter is controllable, the cutting quality can be guaranteed, and the cutting efficiency is improved; the length of the copper bar entering channel can be controlled through the limiting block in the X-axis direction position, so that the position of each cutter acting on the surface of the copper bar is accurately controlled, and different production demands are met. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1It is a perspective view of the embodiment of the utility model.

[0026] Figure 2 It is a partial structure perspective view (hidden dust cover and side cover) of the embodiment of the utility model.

[0027] Figure 3 It is a front view of the side cutting knife assembly of the embodiment of the utility model.

[0028] Figure 4 It is a top view of the side cutting knife assembly of the embodiment of the utility model.

[0029] Figure 5 It is a front view of the side cutting knife assembly of the embodiment of the utility model (hidden side cutting knife).

[0030] Figure 6 It is an exploded view of the side cutting knife assembly of the embodiment of the utility model.

[0031] Figure 7 It is a perspective view of the upper cutting knife assembly of the embodiment of the utility model.

[0032] Figure 8 It is a front view of the upper cutting knife assembly of the embodiment of the utility model.

[0033] Figure 9 It is a back view of the upper cutting knife assembly of the embodiment of the utility model.

[0034] Figure 10 It is a top view of the upper cutting knife assembly of the embodiment of the utility model.

[0035] Figure 11 It is a perspective view of the lower cutting knife assembly of the embodiment of the utility model.

[0036] Figure 12 It is a front view of the lower cutting knife assembly of the embodiment of the utility model.

[0037] Figure 13 It is a perspective view of the fixed length assembly of the embodiment of the utility model.

[0038] Figure 14 It is a side view of the fixed length assembly of the embodiment of the utility model.

[0039] Figure 15 It is a top view of the fixed length assembly of the embodiment of the utility model.

[0040] Explanation of figure mark number:

[0041] 1-machine table; 11-cutting station;

[0042] 2-side cutter assembly; 21-side cutter; 211-arc-shaped cutter edge; 22-sliding seat; 221-Y-axis sliding groove; 222-first limiting plate; 223-second limiting plate; 23-sliding block; 231-shaft part; 232-connection port; 233-camber; 24-Y-axis cylinder; 241-cylinder joint; 25-round head pin; 26-spring; 27-first moving plate; 271-first screw nut; 28-Y-axis screw; 29-Y-axis motor; 20-first sliding rail;

[0043] 3-upper cutter assembly; 31-upper cutter; 32-pressing rod; 33-longitudinal cutter; 34-upper fixed seat; 35-first Z-axis cylinder; 36-second Z-axis cylinder; 37-first lifting plate; 38-upper fixed block; 39-upper guide column; 30-upper guide sleeve;

[0044] 4-lower cutter assembly; 41-lower cutter; 42-lower fixed seat; 43-third Z-axis cylinder; 44-second lifting plate; 45-floating joint; 46-lower guide column; 47-lower guide sleeve;

[0045] 5-length fixing assembly; 51-limiting block; 511-clearance groove; 52-length fixing base; 53-X-axis motor; 54-second moving plate; 541-second screw nut; 55-X-axis screw; 56-belt; 57-second sliding rail;

[0046] 6-thermocouple;

[0047] 7-heating rod;

[0048] 8-dust cover; 81-inlet; 82-heat dissipation hole;

[0049] 9-operation panel;

[0050] 10-heat insulation pad. DETAILED DESCRIPTION

[0051] In order to further explain the technical scheme of the utility model, the utility model will be described in detail below through specific embodiments.

[0052] Reference Figures 1-15 As shown in the figure, the utility model discloses a kind of equipment for cutting copper bar heat shrinkable sleeve, including machine table 1, side cutter assembly 2, upper cutter assembly 3, lower cutter assembly 4 and length fixing assembly 5;

[0053] Machine table 1 is provided with cutting station 11;

[0054] A pair of symmetrical side cutter assemblies 2 are provided in the left-right direction of cutting station 11, and upper cutter assembly 3 and lower cutter assembly 4 are respectively provided in the up-down direction of the cutting station 11;Passage for entering copper bar to be cut is formed between side cutter assembly 2, upper cutter assembly 3 and lower cutter assembly 4, and length fixing assembly 5 is provided at the other end of the passage.

[0055] Reference Figure 1 As shown in the drawings, the length direction of the channel is defined as the X axis, the horizontal direction perpendicular to the X axis is the Y axis, and the direction perpendicular to the XY plane is the Z axis; the side cutter assembly 2 is provided with a side cutter 21 moving along the Y axis; the upper cutter assembly 3 is provided with an upper cutter 31 and a pressing rod 32 moving along the Z axis; the lower cutter assembly 4 is provided with a lower cutter 41 moving along the Z axis; and the fixed-length assembly 5 is provided with a limiting block 51 adjusting the position along the X axis, for limiting the length of the copper bar entering the channel.

[0056] Through the above scheme, the utility model discloses a cutting station 11 of the machine table 1 is provided with each cutter assembly in the up-down and left-right directions, which can press and fix the copper bar to be cut on the cutting station 11 by the pressing rod 32 during cutting, and cut the heat-shrinkable sleeve on the surface of the copper bar in different directions by the side cutter 21, the upper cutter 31 and the lower cutter 41, realizing automatic production; under the cooperation of the mechanical structure, the cutting force of each cutter is controllable, which can guarantee the cutting quality and improve the cutting efficiency; the length of the copper bar entering the channel can be controlled by the limiting block 51 adjustable in the X axis direction, so that the position of each cutter acting on the surface of the copper bar can be accurately controlled, meeting different production requirements.

[0057] The specific embodiments of the utility model are shown below.

[0058] Reference Figure 6 As shown in the drawings, the above-mentioned side cutter 21 is provided with an arc-shaped cutting edge 211 on the cutting edge, which is used for matching the arc-shaped side surface of the copper bar.

[0059] Reference Figure 6 , 7 As shown in the drawings, the above-mentioned side cutter 21, the upper cutter 31 and the lower cutter 41 are all installed with thermocouples 6 and heating rods 7, which are used for heating the side cutter 21 / the upper cutter 31 / the lower cutter 41, improving the temperature of the cutter, realizing hot cutting, and more efficiently cutting off the heat-shrinkable sleeve on the surface of the copper bar without the need of increasing the pressure of the cutter on the copper bar or back-and-forth cutting, avoiding damage to the surface of the copper bar, and improving the cutting efficiency and the cutting quality.

[0060] Reference Figure 1 As shown in the drawings, the surface of the above-mentioned machine table 1 is provided with a dust cover 8, which is used for covering the side cutter assembly 2, the upper cutter assembly 3, the lower cutter assembly 4 and the fixed-length assembly 5, and reserving an inlet 81 for the copper bar to enter. By setting the dust cover 8, the dustproof effect can be realized, the driving parts, tracks and other components of each assembly are prevented from being polluted, the maintenance cycle of the equipment is prolonged, and the maintenance cost is reduced.

[0061] Further, the dust cover 8 is provided with a plurality of heat dissipation holes 82 corresponding to the upper part of the channel, which improves the heat dissipation effect, and is especially suitable for the technical scheme that the above-mentioned cutter assembly is provided with thermocouples 6 and heating rods 7.

[0062] Reference Figure 1 As shown in the figure, the machine table 1 is also provided with an operation panel 9 for setting parameters, recording and displaying data and other operations.

[0063] Reference Figures 3-6 As shown in the figure, it is the side cutter assembly 2 of the utility model, specifically the side cutter assembly located on the right side of the cutting station 11 (the structure on the left side is the same, and the direction of the parts is mirror-symmetrical) :

[0064] The side cutter assembly 2 comprises a sliding seat 22 moving along the Y axis, a sliding block 23 slidingly fitted in the sliding seat 22 along the Y axis, and a Y-axis cylinder 24 installed at the end of the sliding seat 22; the side cutter 21 is installed on the sliding block 23 by means of screw locking or the like, so as to be replaced; the sliding seat 22 is provided with a Y-axis sliding groove 221 for slidingly fitting the sliding block 23, the upper and lower surfaces of the sliding block 23 are both provided with an axle portion 231 with an arc-shaped cross section abutting against the inner wall of the Y-axis sliding groove 221, and the end of the sliding block 23 is provided with a connecting port 232; the cylinder joint 241 of the Y-axis cylinder 24 is movably fitted in the connecting port 232, so as to realize the transmission connection between the Y-axis cylinder 24 and the sliding block 23. Thus, the side cutter assembly 2 constitutes a floating cutter structure, when the Y-axis cylinder 24 outputs power to push the sliding block 23 and the side cutter 21 thereon to move along the Y axis, and the side cutter 21 contacts the copper bar to be cut and is subjected to the reaction force of the copper bar / heat-shrinkable sleeve, the movable gap between the cylinder joint 241 and the connecting port 232 can avoid rigid connection, so that the sliding block 23 and the side cutter 21 swing around the axle portion 231 as a fulcrum, and then the side cutter 21 adapts to the shape of the side surface of the copper bar, and is more fitted to the copper bar, so as to improve the cutting efficiency and quality, and the surface of the copper bar is not damaged.

[0065] In some embodiments of the side cutter assembly 2, one of the upper and lower surfaces of the sliding block 23 is provided with a round head pin 25 and a spring 26 between the inner wall of the Y-axis sliding groove 221; the spring 26 and the round head pin 25 are sequentially embedded in the counterbore formed on the surface of the sliding block 23, the round head pin 25 extends out of the surface of the sliding block 23 under the action of the spring 26 and abuts against the inner wall of the Y-axis sliding groove 221, and is used to drive the sliding block 23 to reset. Thus, by providing the round head pin 25 and the spring 26, the side cutter 21 has an initial direction before contacting the copper bar, so as to realize the initialization of the side cutter 21 and the resetting after cutting.

[0066] In some embodiments of the side cutter assembly 2, the inner wall of the connecting port 232 is protruded to form an arc surface 233, so as to adapt to the swing of the sliding block 23.

[0067] In some embodiments of the side cutter assembly 2, the upper and lower sides of the Y-axis sliding groove 221 are both provided with a first limiting plate 222, so as to prevent the sliding block 23 from falling out of the side of the Y-axis sliding groove 221.

[0068] In some embodiments of the side cutter assembly 2, second limiting plates 223 are installed on the left and right sides of the Y-axis sliding groove 221 to prevent the sliding block 23 from falling out of the end of the Y-axis sliding groove 221; at the same time, the Y-axis cylinder 24 is installed on one of the second limiting plates 223, and the cylinder joint 241 penetrates through the second limiting plate 223.

[0069] In some embodiments of the side cutter assembly 2, a heat insulation pad 10 is arranged between the sliding block 23 and the side cutter 21, which is particularly suitable for the technical solution that the cutter assembly is provided with a thermocouple 6 and a heating rod 7, so as to avoid overheating of the parts outside the cutter. Similarly, the heat insulation pad is also applicable to the upper cutter assembly 3 and the lower cutter assembly 4.

[0070] In some embodiments of the side cutter assembly 2, the side cutter assembly 2 comprises a first moving plate 27 for installing the sliding seat 22, a Y-axis lead screw 28 for driving the first moving plate 27, and a Y-axis motor 29 for driving the Y-axis lead screw 28. Thus, the Y-axis motor 29 drives the Y-axis lead screw 28 to rotate to drive the first moving plate 27 to move in the Y-axis direction, so as to drive the sliding seat 22 to move in the Y-axis direction. Since the output stroke of the Y-axis cylinder 24 itself is fixed, the position adjustment of the sliding seat 22 can be realized by the Y-axis motor 29 cooperating with the Y-axis lead screw 28 to adjust the initial position of the side cutter 21, so as to adapt to copper bars of different sizes (widths). That is, the Y-axis motor 29 is responsible for adjusting the position of the side cutter 21, and the Y-axis cylinder 24 is responsible for providing power for the cutting action of the side cutter 21. Since the cylinder has fast action, it can meet the requirements of flexibility and fast production at the same time.

[0071] Further, the base of the side cutter assembly 2 is provided with a first sliding rail 20 for sliding cooperation of the first moving plate 27, and a lead screw fixing seat for installation of the Y-axis lead screw 28, etc.

[0072] At the same time, the first moving plate 27 is provided with a first lead screw nut 271 for threaded connection of the Y-axis lead screw 28.

[0073] Reference Figures 7-10 As shown in the figure, the upper cutter assembly 3 of the utility model:

[0074] The upper cutter assembly 3 comprises a longitudinal cutter 33 arranged along the X-axis direction, and the longitudinal cutter 33 moves synchronously with the upper cutter 31 to cut the heat shrink sleeve on the upper surface of the copper bar. By arranging the longitudinal cutter 33, the upper surface of the heat shrink sleeve can be divided into two parts, which is more convenient for peeling off the cut heat shrink sleeve from the copper bar later.

[0075] Further, the limiting block 51 is provided with a giving-up groove 511 for avoiding the longitudinal cutter 33.

[0076] The upper cutter assembly 3 comprises an upper fixed seat 34 mounted on the machine table 1, a first Z-axis cylinder 35 and a second Z-axis cylinder 36 mounted on the side of the upper fixed seat 34, and a first lifting plate 37 driven by the first Z-axis cylinder 35; the upper cutter 31 and the longitudinal cutter 33 are both mounted on the first lifting plate 37, and the pressing rod 32 is mounted on the output end of the second Z-axis cylinder 36. In the embodiment, the first lifting plate 37 is provided with the pressing rod 32, the upper fixed seat 34, the first Z-axis cylinder 35 and the second Z-axis cylinder 36 on both sides, so as to ensure the symmetry and stability of the left and right structures.

[0077] Further, the upper cutter assembly 3 comprises an upper fixed block 38 mounted on the machine table 1 and located below the upper fixed seat 34, and an upper guide column 39 and an upper guide sleeve 30 in sliding fit between the upper fixed block 38 and the first lifting plate 37, for guiding the Z-axis movement of the first lifting plate 37 and improving the stability of the machine.

[0078] Referring to FIG. 1, Figures 11-12 As shown in the figure, the lower cutter assembly 4 of the utility model comprises:

[0079] The lower cutter assembly 4 comprises a lower fixed seat 42 mounted below the machine table 1, a third Z-axis cylinder 43 mounted on the lower surface of the lower fixed seat 42, and a second lifting plate 44 movably fitted above the lower fixed seat 42 and driven by the third Z-axis cylinder 43; and the lower cutter 41 is mounted on the second lifting plate 44.

[0080] Further, a floating joint 45 is arranged between the output end of the third Z-axis cylinder 43 and the second lifting plate 44. The floating joint 45 can play a buffering role when the pressing rod 32 performs a pressing action, and make the lower cutter 41 more closely adhere to the lower surface of the copper bar.

[0081] Meanwhile, a lower guide column 46 and a lower guide sleeve 47 in sliding fit are arranged between the second lifting plate 44 and the lower fixed seat 42, for guiding the Z-axis movement of the second lifting plate 44 and improving the stability of the machine.

[0082] Referring to FIG. 1, Figures 13-15 As shown in the figure, the fixed length assembly 5 of the utility model comprises:

[0083] The fixed length assembly 5 comprises a fixed length base 52 mounted on the machine table 1, an X-axis motor 53 mounted on the fixed length base 52, and a second moving plate 54 in transmission connection with the X-axis motor 53 and moving along the X-axis direction; and the limiting block 51 is mounted on the second moving plate 54.

[0084] Further, the fixed-length base 52 is provided with an X-axis screw rod 55 parallel to the X-axis motor 53, and a second sliding rail 57 for sliding cooperation of the second moving plate 54, the second sliding rail 57 is provided in parallel with the X-axis screw rod 55 and can support the second moving plate 54 side by side; the X-axis screw rod 55 is driven by the belt 56 between the X-axis motor 53 and the second screw nut 541 below the second moving plate 54, and is threadedly connected with each other in parallel position design to reduce the length of the fixed-length assembly 5. The displacement of the second moving plate 54 can be accurately controlled by the cooperation of the X-axis motor 53 and the X-axis screw rod 55, so as to adjust the position of the limiting block 51, and meet the demand of flexible adjustment of the size.

[0085] Secondly, the fixed-length assembly 5 includes an X-axis cylinder 58 mounted on the second moving plate 54, and the limiting block 51 is mounted on the output end of the X-axis cylinder 58. Similar to the principle of the side cutting knife assembly 2, the fixed-length assembly 5 is combined by the double driving structure of the motor and the screw rod and the cylinder, the accurate size control can be realized by the motor and the screw rod, and the limiting block 51 can be avoided in the cutting process by the quick action of the cylinder (the limiting block 51 does not need to hold the end of the copper bar after the copper bar is in place, at this time the copper bar is fixed by the pressing rod 32).

[0086] In the above, in each assembly, in order to detect the position of the moving parts to meet the automation demand, the utility model also can set up photoelectric sensor and its corresponding inductive piece on the path of the corresponding parts, for detecting whether the parts move to the position.

[0087] The working process of the utility model is roughly as follows:

[0088] The copper bar to be cut is sent into the channel by artificial or mechanical arm until the end of the copper bar abuts against the limiting block 51; then the pressing rod 32 first presses down to tightly fix the copper bar on the cutting station 11 and does not move or shake; before the cutting action, the thermocouple 6 and the heating rod 7 preheat the corresponding cutting knife; then the side cutting knife 21, the upper cutting knife 31, the longitudinal cutting knife 33 and the lower cutting knife 41 move to the surface of the copper bar synchronously, heat cutting is carried out, the heat shrinkable sleeve on the surface of the copper bar is cut off and completely adheres to the surface of the copper bar after the side cutting knife 21 contacts the heat shrinkable sleeve and swings under the action of the cylinder joint 241 and the sliding block 23; after cutting is completed, the cutting knives retreat, and the copper bar is taken away by artificial or mechanical arm.

[0089] The above embodiment and drawing are not limited to the product shape and style of the utility model, and any ordinary skilled person in the art can make appropriate changes or modifications, which should be regarded as not departing from the patent category of the utility model.

Claims

1. A device for cutting copper bar heat-shrinkable sleeve, characterized in that: comprising a machine table, which is provided with a cutting station; a pair of symmetrically arranged side cutter assemblies are arranged on the left and right directions of the cutting station, and an upper cutter assembly and a lower cutter assembly are arranged on the upper and lower directions of the cutting station respectively; a channel for the copper bar to be cut to enter is formed between the side cutter assemblies, the upper cutter assembly and the lower cutter assembly, and a fixed length assembly is arranged at the other end of the channel; the length direction of the channel is defined as X axis, the horizontal direction perpendicular to the X axis is defined as Y axis, and the direction perpendicular to the XY plane is defined as Z axis; the side cutter assembly is provided with a side cutter moving along the Y axis; the upper cutter assembly is provided with an upper cutter moving along the Z axis and a pressing rod; the lower cutter assembly is provided with a lower cutter moving along the Z axis; and the fixed length assembly is provided with a limiting block adjusting the position along the X axis, for limiting the length of the copper bar entering the channel.

2. The device for cutting copper bar heat-shrinkable sleeve according to claim 1, characterized in that: the side cutter assembly comprises a sliding seat moving along the Y axis, a sliding block slidingly fitted in the sliding seat along the Y axis, and a Y axis air cylinder mounted at the end of the sliding seat; the side cutter is mounted on the sliding block; the sliding seat is provided with a Y axis sliding groove for the sliding block to slide; the upper and lower surfaces of the sliding block are both provided with shaft portions abutting against the inner wall of the Y axis sliding groove, and the end of the sliding block is provided with a connecting port; and the cylinder joint of the Y axis air cylinder is movably fitted in the connecting port, so as to realize the transmission connection between the Y axis air cylinder and the sliding block.

3. The device for cutting copper bar heat-shrinkable sleeve according to claim 2, characterized in that: a round head pin and a spring are arranged between one of the upper and lower surfaces of the sliding block and the inner wall of the Y axis sliding groove; the spring and the round head pin are sequentially embedded in the counterbore formed on the surface of the sliding block, and the round head pin extends out of the surface of the sliding block and abuts against the inner wall of the Y axis sliding groove under the action of the spring, for driving the sliding block to reset.

4. The device for cutting copper bar heat-shrinkable sleeve according to claim 2, characterized in that: the inner wall of the connecting port is convexly formed with a curved surface.

5. The device for cutting copper bar heat-shrinkable sleeve according to claim 2, characterized in that: first limiting plates are mounted on the upper and lower sides of the Y axis sliding groove, and second limiting plates are mounted on the left and right sides of the Y axis sliding groove; the Y axis air cylinder is mounted on one of the second limiting plates, and the cylinder joint is provided through the second limiting plate.

6. The device for cutting copper bar heat-shrinkable sleeve according to claim 2, characterized in that: the side cutter assembly comprises a first moving plate for mounting the sliding seat, a Y axis lead screw for driving the first moving plate, and a Y axis motor for driving the Y axis lead screw; the base of the side cutter assembly is provided with a first sliding rail for the first moving plate to slide, and a lead screw fixing seat for the Y axis lead screw to be mounted; and the first moving plate is provided with a first lead screw nut for the Y axis lead screw to be threadedly connected.

7. The device for cutting copper bar heat-shrinkable sleeve according to claim 1, characterized in that: ​ ​ ​ ​ ​ ​ ​ ​ ​ The upper cutter assembly comprises a longitudinal cutter arranged along the X-axis direction, and the longitudinal cutter moves synchronously with the upper cutter; the limiting block is provided with a clearance slot for avoiding the longitudinal cutter.

8. The device for cutting copper bus heat-shrinkable sleeve according to claim 1, characterized in that: The upper cutter assembly comprises an upper fixed seat mounted on the machine table, a first Z-axis cylinder and a second Z-axis cylinder mounted on the side of the upper fixed seat, and a first lifting plate driven by the first Z-axis cylinder; The upper cutter is mounted on the first lifting plate, and the pressing rod is mounted on the output end of the second Z-axis cylinder.

9. The device for cutting copper bus heat-shrinkable sleeve according to claim 8, characterized in that: The upper cutter assembly comprises an upper fixed block mounted on the machine table and located below the upper fixed seat, and an upper guide column and an upper guide sleeve in sliding fit between the upper fixed block and the first lifting plate.

10. The device for cutting copper bus heat-shrinkable sleeve according to claim 1, characterized in that: The lower cutter assembly comprises a lower fixed seat mounted below the machine table, a third Z-axis cylinder mounted on the lower surface of the lower fixed seat, and a second lifting plate movably fitted above the lower fixed seat and driven by the third Z-axis cylinder; The lower cutter is mounted on the second lifting plate.

11. The device for cutting copper bus heat-shrinkable sleeve according to claim 10, characterized in that: A floating joint is arranged between the output end of the third Z-axis cylinder and the second lifting plate; a lower guide column and a lower guide sleeve in sliding fit are arranged between the second lifting plate and the lower fixed seat.

12. The device for cutting copper bus heat-shrinkable sleeve according to claim 1, characterized in that: The fixed-length assembly comprises a fixed-length base mounted on the machine table, an X-axis motor mounted on the fixed-length base, and a second moving plate in transmission connection with the X-axis motor and moving along the X-axis direction; the limiting block is mounted on the second moving plate.

13. The device for cutting copper bus heat-shrinkable sleeve according to claim 12, characterized in that: An X-axis screw rod is arranged on the fixed-length base in parallel with the X-axis motor, and a second sliding rail for sliding fit of the second moving plate is arranged in parallel with the X-axis screw rod; the X-axis screw rod and the X-axis motor are in transmission through a belt, and are in threaded connection with a second screw nut below the second moving plate; the fixed-length assembly further comprises an X-axis cylinder mounted on the second moving plate, and the limiting block is mounted on the output end of the X-axis cylinder.

14. The device for cutting copper bus heat-shrinkable sleeve according to claim 1, characterized in that: An arc-shaped cutting edge is arranged on the cutting edge of the side cutter.

15. The device for cutting copper bus heat-shrinkable sleeve according to claim 1, characterized in that: A thermocouple and a heating rod are mounted in each of the side cutter, the upper cutter and the lower cutter.

16. The device for cutting copper bus heat-shrinkable sleeve according to claim 1, characterized in that: The surface of the machine is provided with a dust cover for covering the side cutting knife assembly, the upper cutting knife assembly, the lower cutting knife assembly and the fixed length assembly, and leaving an entrance for the copper bar to enter; the machine is also provided with an operation panel.

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