CN109049559B - Rotary cutting jig for water gap - Google Patents
Rotary cutting jig for water gap Download PDFInfo
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- CN109049559B CN109049559B CN201810955344.6A CN201810955344A CN109049559B CN 109049559 B CN109049559 B CN 109049559B CN 201810955344 A CN201810955344 A CN 201810955344A CN 109049559 B CN109049559 B CN 109049559B
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- 238000005520 cutting process Methods 0.000 title claims abstract description 87
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 230000033001 locomotion Effects 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 13
- 239000000872 buffer Substances 0.000 claims description 9
- 230000000717 retained effect Effects 0.000 claims description 3
- 230000009347 mechanical transmission Effects 0.000 claims description 2
- 238000001746 injection moulding Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 239000000047 product Substances 0.000 description 53
- 230000006872 improvement Effects 0.000 description 9
- 238000003825 pressing Methods 0.000 description 9
- 239000004033 plastic Substances 0.000 description 6
- 229920003023 plastic Polymers 0.000 description 6
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- 238000002955 isolation Methods 0.000 description 2
- 239000006173 Good's buffer Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
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- 239000012467 final product Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/38—Cutting-off equipment for sprues or ingates
- B29C45/382—Cutting-off equipment for sprues or ingates disposed outside the mould
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
A rotational-cut jig for a nozzle, comprising: the positioning bottom die is used for positioning and bearing a product to be processed, and the product to be processed comprises a product body and a water gap; the main shaft unit is rotatably held on the positioning bottom die and comprises a rotary main shaft and a rotary cutter, wherein the rotary cutter is arranged at one end of the rotary main shaft, which is close to a product to be processed, and the cutting edge of the rotary cutter faces to the connecting part of the product body and the water gap along the rotation direction of the rotary main shaft; and the driving unit is used for driving the rotating main shaft to rotate. The water gap rotary cutting jig provided by the invention can efficiently carry out water gap rotary cutting, is thorough in rotary cutting and stable in quality, has the advantages of clean and environment-friendly processing process and high safety, and realizes efficiency matching with an injection molding process.
Description
Technical Field
The invention belongs to the technical field of injection molding, and particularly relates to a rotary cutting jig for a water gap.
Background
In injection molding, high temperature molten plastic is required to enter a mold cavity from an injection molding machine nozzle through a gate to form a product having a desired shape. After the product is injection molded, the water gap is connected to the product and is ejected out together with the product. The water gap on the product needs to be removed to obtain the finished product with the final product shape.
Currently, nozzle removal is generally performed in a fully manual or semi-automatic manner. The full manual mode is that a worker scrapes the water gap by a blade, the efficiency is low, the quality of the finished product is good, and the defects of incomplete water gap removal, product damage and the like are easy to exist; the semi-automatic mode is that firstly, the workers shear the exposed water gap on the product, then the milling machine mills to remove the residual water gap, the process is complex, the processing period is long, the injection molding efficiency is not matched, and the defects of serious dust pollution, poor safety and the like exist. In particular, these problems are more pronounced in the removal of the nozzle of a cylindrical plastic housing.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the rotary-cut jig for the water gap, which can efficiently carry out rotary-cut on the water gap, has the advantages of thorough rotary-cut, stable quality, clean and environment-friendly processing process and high safety, and realizes the efficiency matching with the injection molding process.
The aim of the invention is achieved by the following technical scheme:
a rotational-cut jig for a nozzle, comprising:
the positioning bottom die is used for positioning and bearing a product to be processed, and the product to be processed comprises a product body and a water gap;
the main shaft unit is rotatably held on the positioning bottom die and comprises a rotary main shaft and a rotary cutter, wherein the rotary cutter is arranged at one end of the rotary main shaft, which is close to a product to be processed, and the cutting edge of the rotary cutter faces to the connecting part of the product body and the water gap along the rotation direction of the rotary main shaft;
and the driving unit is used for driving the rotating main shaft to rotate.
As an improvement of the above technical solution, the positioning bottom die has a through cavity passing therethrough, the rotating spindle is rotatably held in the through cavity, the rotary cutting tool protrudes outside the through cavity, and the water gap is held opposite to the through cavity.
As a further improvement of the technical scheme, the positioning bottom die comprises a bottom die body and a protection part arranged at one end of the bottom die body, and the product to be processed is sleeved on the outer surface of the positioning bottom die.
As a further improvement of the technical scheme, the plurality of protection parts are distributed in a circumferential array along the rotation direction of the rotation main shaft, and the rotary cutting tool is positioned between the plurality of protection parts and protrudes out of one end of the protection part away from the bottom die body.
As a further improvement of the technical scheme, the rotary cutting tool comprises a tool body and a cutting edge, wherein one end, far away from the rotary spindle, of the tool body is a bearing end face, the bearing end face is used for bearing the product to be processed in a fitting mode, and the cutting edge extends outwards from the tool body along the rotary direction of the rotary spindle.
As a further improvement of the above technical solution, the rotary cutting tools are plural and distributed in a circumferential array along the rotation direction of the rotation main shaft.
As a further improvement of the above technical solution, the driving unit includes a driving source and a transmission assembly, and the transmission assembly is used for connecting the driving source and the rotating main shaft to realize mechanical transmission between the driving source and the rotating main shaft.
As a further improvement of the technical scheme, the transmission assembly comprises a driving rack and a driven gear which are meshed with each other, the driving rack is connected with the driving source, the driven gear is fixedly connected with one end, far away from the rotary cutting tool, of the rotary spindle, and the driving source is used for outputting linear reciprocating motion.
As a further improvement of the above technical solution, the transmission assembly further includes a linear guide rail and a sliding block slidably held on the linear guide rail, and the driving rack is fixedly connected with the sliding block.
As a further improvement of the technical scheme, the transmission assembly further comprises a limiting buffer block used for limiting the linear motion stroke of the driving rack.
The beneficial effects of the invention are as follows:
the rotary cutting machine comprises a positioning bottom die, a main shaft unit and a driving unit, wherein the positioning bottom die is used for positioning and bearing a product to be processed, the main shaft unit is rotatably kept on the positioning bottom die to realize rotary cutting, the cutting edge of a rotary cutting tool is not exposed along the rotation direction of the rotary main shaft in the rotary cutting process, the rotary cutting is efficient and thorough, the quality is stable, chips are not prone to leaking and flying, the advantages of clean and environment-friendly processing process and high safety are achieved, and the efficiency matching with an injection molding process is achieved.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of an assembly structure of a rotary-cut jig for a nozzle according to embodiment 1 of the present invention;
FIG. 2 is an enlarged schematic view of a portion of the rotary cutting tool for water ports of FIG. 1;
fig. 3 is an exploded view of the rotary cutting jig for a nozzle according to embodiment 1 of the present invention;
fig. 4 is an enlarged schematic view of M of the water port rotary cutting jig in fig. 3;
fig. 5 is an exploded view of the application state of the rotary-cut jig for a nozzle according to embodiment 1 of the present invention;
fig. 6 is a partially enlarged schematic view of an assembly structure of the application state of the rotary-cut jig for a nozzle according to embodiment 1 of the present invention;
fig. 7 is a schematic diagram of an exploded structure of a plate member removed from a rotary cutting jig for a nozzle according to embodiment 1 of the present invention;
fig. 8 is a schematic diagram of an assembly structure of a rotary cutting device for a nozzle according to embodiment 2 of the present invention;
fig. 9 is an enlarged view of the water jet rotary cutting device of fig. 8 at N.
Description of main reference numerals:
the U-nozzle rotary cutting device comprises a U-nozzle rotary cutting jig, a 0100-positioning bottom die, a 0110-through cavity, a 0120-bottom die body, a 0130-protecting part, a 0200-spindle unit, a 0210-rotating spindle, a 0220-rotary cutting tool, a 0221-tool body, a 0222-cutting edge, a 0223-bearing end face, a 0230-tool rest, a 0231-support flap, a 0300-driving unit, a 0310-driving source, a 0320-transmission assembly, a 0321-driving rack, a 0322-driven gear, a 0323-linear guide rail, a 0324-sliding block, a 0325-limiting buffer block, a 0400-jig base, a 2000-workbench, a 2100-working cavity, a 3000-electric control system, a 4000-tightening unit, a 4100-compacting piece, a 4110-avoiding hole, a 4200-second driving source, a 4300-guiding mechanism, a 4310-guide post, a 4320-guide sleeve, a 4400-safety sensor, a P-product to be processed, a P (a) -product body and a P (b) -nozzle.
Detailed Description
In order to facilitate understanding of the present invention, the nozzle rotary cutting jig will be more fully described with reference to the accompanying drawings. A preferred embodiment of a nozzle rotary cutting jig is shown in the accompanying drawings. However, the nozzle rotational cutting jig may be implemented in many different forms and is not limited to the embodiments described herein. Rather, the purpose of these embodiments is to provide a more thorough and complete disclosure of the rotary cutting jig for a nozzle.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the rotary cutting jig for the nozzle is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Example 1
Referring to fig. 1 to 6 in combination, the present embodiment discloses a rotary-cut jig 1000 for a nozzle, where the rotary-cut jig 1000 for a nozzle includes a positioning bottom die 0100, a spindle unit 0200 and a driving unit 0300, and is used for realizing rotary-cut for a nozzle with safety, reliability, simple operation, and good machining efficiency and quality.
Firstly, the product P to be processed is a blank taken off from an injection molding machine after injection molding is finished, and a water gap is not cleaned. It will be appreciated that the product P to be machined comprises a product body P (a) and a nozzle P (b), the product body P (a) and the nozzle P (b) still remaining connected. The shape of the product body P (a) is determined according to actual product requirements, and the product body P (a) is illustratively a cylindrical plastic housing. Accordingly, the nozzle P (b) is overlapped with the end opening (e.g., the center position of the opening) of the cylindrical plastic housing.
The positioning bottom die 0100 is used for positioning and bearing a product P to be processed and providing a positioning basis for the product P to be processed. Further, the positioning bottom die 0100 is used for positioning and clamping the product P to be processed, so that the product P to be processed has better clamping precision and structural reliability, and the precision and stability of water gap rotary cutting processing are ensured.
The spindle unit 0200 is used for executing a nozzle rotary cutting operation, and acts on a connecting part of the product body P (a) and the nozzle P (b) to separate the product body P (a) from the nozzle P (b). Wherein, the spindle unit 0200 is rotatably held on the positioning bottom die 0100, and comprises a rotating spindle 0210 and a rotary cutter 0220. The rotary cutter 0220 is disposed at one end of the rotary spindle 0210 near the product P to be processed, and rotationally cuts the product body P (a) and the water gap P (b) along with the rotation of the rotary spindle 0210. The cutting edge 0222 of the rotary cutting tool 0220 faces the connection portion of the product body P (a) and the water gap P (b) along the rotation direction of the rotary main shaft 0210, and the cutting force of the cutting edge 0222 is ensured to be accurately output, so that an ideal cutting effect is achieved.
Illustratively, the rotary cutting tools 0220 disposed at the same end of the rotary spindle 0210 may be one to plural. When the number of the rotary cutters 0220 is plural, the plural rotary cutters 0220 are distributed in a circumferential array along the rotation direction of the rotation main shaft 0210, so that multi-point cutting is realized, further cutting efficiency is ensured, and the connection part of the product body P (a) and the water gap P (b) is ensured to be always acted by cutting force. Exemplarily, the plurality of rotary cutting tools 0220 are uniformly distributed on the distribution circumference, so that the cutting force is uniformly distributed and the occurrence of interference force or interference moment is avoided.
The rotary cutting tool 0220 has a plurality of structural forms. Illustratively, the rotary cutting tool 0220 includes a tool body 0221 and a cutting edge 0222. One end of the cutter body 0221 is fixedly connected to the rotary spindle 0210, and the other end forms a bearing end face 0223. The bearing end face 0223 is used for bearing the product P to be processed in a fitting mode, accurate and reliable positioning of the product P to be processed and the cutting edge 0222 is achieved, and cutting accuracy is guaranteed. Exemplarily, when the number of the rotary cutting tools 0220 is plural, the bearing end faces 0223 of the plural rotary cutting tools 0220 are kept coplanar, so that alignment accuracy and uniform bearing are further improved.
The cutting edge 0222 is disposed at one end of the tool body 0221 near the bearing end face 0223, and extends outwards from the tool body 0221 along the rotation direction of the rotation main shaft 0210. Exemplarily, an end surface of the cutting edge 0222 far away from the rotating spindle 0210 is coplanar with the bearing end surface 0223, so as to ensure consistency of positioning references, and increase a bonding bearing area of the bearing end surface 0223 to ensure stability of bonding positioning. Illustratively, the cutting edge 0222 has an acute inclination angle, and sharp edges of the end portions are ensured, so that cutting speed and cutting quality are improved.
Illustratively, the rotating spindle 0210 is provided with a tool post 0230 at its end for mounting a rotary cutting tool 0220. Illustratively, when the number of the rotary cutting tools 0220 is plural, the tool rest 0230 has a multi-lobe structure (e.g., a three-fork structure, a cross structure, a five-star structure, etc.), and each of the plurality of tool rest petals 0231 is for correspondingly mounting one of the rotary cutting tools 0220.
The driving unit 0300 is used for driving the rotating main shaft 0210 to rotate and is a power output source. It can be appreciated that the driving unit 0300 can directly output the circular motion to the rotating spindle 0210, or output other motions (such as linear motion) and convert the circular motion into the circular motion through the conversion mechanism to be transmitted to the rotating spindle 0210.
Referring to fig. 7, the driving unit 0300 includes a driving source 0310 and a transmission assembly 0320. The power input end of the transmission component 0320 is connected with the power output end of the driving source 0310, and the power output end of the transmission component 0320 is connected with the power input end of the rotating main shaft 0210, so that the power transmission between the driving source 0310 and the rotating main shaft 0210 is realized. The driving source 0310 is various, and includes a telescopic cylinder, a linear motor, a rotary motor, a hydraulic pump, and the like.
Illustratively, drive assembly 0320 includes a driving rack 0321 and a driven rack 0322 intermeshed in rack-and-pinion drive relationship. The driving source 0310 is used to output linear reciprocating motion, including a telescopic cylinder, a linear motor, and the like. The driving rack 0321 is connected to a driving source 0310, and is driven by the latter to perform linear reciprocating motion. The driven gear 0322 is fixedly connected with one end of the rotary spindle 0210, which is far away from the rotary cutter 0220, and converts the linear reciprocating motion of the driving rack 0321 into the circular motion of the rotary cutter 0220.
Illustratively, drive assembly 0320 further includes a linear guide 0323 and a sliding block 0324 slidably retained on linear guide 0323. The driving rack 0321 is fixedly connected with the sliding block 0324 so as to slide together with the sliding block 0324. Under the motion coordination relationship of the linear guide rail 0323 and the sliding block 0324, the driving rack 0321 is subjected to good guiding action to ensure the accurate linear motion direction.
Illustratively, the drive assembly 0320 further includes a limit buffer block 0325 for constraining the linear motion stroke of the drive rack 0321. Exemplarily, the limit buffer block 0325 is located at a side of the driving rack 0321 away from the driving source 0310. When the active rack 0321 overshoots, the active rack 0321 collides with the limit buffer block 0325, the limit buffer block 0325 acts on the active rack 0321 reversely to make the brake static, and the risk that the active rack 0321 breaks away from the linear guide rail 0323 due to overlarge stroke is avoided. The limit buffer block 0325 is made of polyurethane material (catapult), rubber, silica gel, etc., and has good elasticity to ensure good buffer performance.
Illustratively, the positioning die 0100 has a through cavity 0110 therethrough. The through cavity 0110 has the function of at least adapting to the cutting requirement of the water gap P (b) of the cylindrical plastic shell and avoiding the flying of chips. The shape of the through-cavity 0110 is determined according to practical needs, and is exemplified by a cylindrical through-hole.
Wherein the rotary spindle 0210 is rotatably held in the through-cavity 0110, and the rotary cutter 0220 protrudes outside the through-cavity 0110. More specifically, the cutting edge 0222 of the rotary cutting tool 0220 protrudes outside the through cavity 0110. Further, the carrying end face 0223 of the cutter body 0221 protrudes outside the through cavity 0110.
The water gap P (b) is opposite to the through cavity 0110, and the effective action of the rotary cutter 0220 and the water gap P (b) is ensured. Exemplarily, the connection portion between the product body P (a) and the water gap P (b) is located inside the axially projected contour of the through cavity 0110, so as to further ensure the effective cutting of the rotary cutter 0220.
Illustratively, the positioning bottom die 0100 comprises a bottom die body 0120 and a protecting portion 0130 disposed at one end of the bottom die body 0120, and a product P to be processed (such as a cylindrical plastic housing) is sleeved on the outer surface of the positioning bottom die 0100. Under the sleeving structure, the whole main shaft unit 0200 is positioned in the product P to be processed, the rotary cutter 0220 can be attached to the connecting part of the product body P (a) and the water gap P (b), and the rotary cutter 0220 is not exposed to avoid mistaken touch injury of people, so that the safety risk and the phenomenon of chip flying are avoided.
Exemplarily, the bottom die body 0120 is used for bearing a product P to be processed, so that the product P to be processed is prevented from loosening and shifting; the protecting part 0130 is used for isolating and protecting the rotary cutting tool 0220, and prevents an operator from directly contacting the rotary cutting tool 0220, so that personal safety of the operator in the operation process is ensured. It is understood that the through channel 0110 extends through the bottom die body 0120.
The number of the protecting parts 0130 may be one to plural. When the number of the protecting parts 0130 is plural, the protecting parts 0130 are distributed in a circumferential array along the rotation direction of the rotation main shaft 0210. Illustratively, the guard 0130 is evenly distributed over the circumference of the distribution, ensuring equidistant isolation. Illustratively, the guard portions 0130 are spaced apart about the circumference of the distribution, surrounding a circumferential cavity having spaced apart openings. It will be appreciated that the circumferential lumen is part of the through lumen 0110.
Wherein, the rotary cutter 0220 is positioned in a circumferential inner cavity formed among the plurality of protecting parts 0130, and the plurality of protecting parts 0130 are used for realizing the isolation from the external environment. Any rotary cutter 0220 protrudes out of one end of the protecting part 0130 far away from the bottom die body 0120, so that the full contact effect with the product P to be processed is ensured.
Exemplarily, the rotary-cut fixture 1000 for the water gap comprises a fixture base 0400 for bearing, mounting and positioning a bottom die 0100, a main shaft unit 0200 and a driving unit 0300. Illustratively, the base die body 0120 is fixed on the jig base 0400, the rotating spindle 0210 is rotatably held on the base die body 0120, and the driving source 0310 is fixed on the jig base 0400. Exemplarily, the linear guide 0323 and the limit buffer block 0325 are respectively fixed on the fixture base 0400.
Example 2
Referring to fig. 8 to 9 in combination, the present embodiment discloses a rotary-cut device U for a nozzle, where the rotary-cut device U for a nozzle includes a workbench 2000 and an electronic control system 3000, and the workbench 2000 is provided with a rotary-cut jig 1000 for a nozzle and a tightening unit 4000 as described in embodiment 1, so as to implement fast and reliable rotary-cut of a nozzle.
The table 2000 provides the primary operating site for the nozzle spin-cutting and provides the mounting basis for other components. Illustratively, the workstation 2000 has a working chamber 2100 open on one side, providing a safe and reliable workplace. The water gap rotary cutting jig 1000 and the jacking unit 4000 are arranged in the working cavity 2100, so that the safety protection of the working cavity 2100 is obtained. The working chamber 2100 has good sealing performance, avoids accidental false contact, and is beneficial to ensuring good working environments of the nozzle rotary cutting jig 1000 and the jacking unit 4000.
The electric control system 3000 has necessary control circuits, and is electrically connected to the gate rotary-cutting tool 1000 and the tightening unit 4000, respectively, for implementing corresponding control switching functions. The control circuit is an operational amplifier circuit based on an integrated operational amplifier, such as an amplifier, an integrator, a filter, an oscillator, etc., and can implement various operations such as addition, subtraction, multiplication, division, calculus, etc., so as to generate corresponding control instructions.
The propping unit 4000 is used for propping the product P to be processed against the nozzle rotary cutting jig 1000, so that the cutting edge 0222 of the spindle unit 0200 tightly acts on the connection part of the product body P (a) and the nozzle P (b). Due to the propping action of the propping unit 4000, the cutting edge 0222 of the main shaft unit 0200 always keeps contact with the product P to be processed in the rotary cutting process, so that a better cutting effect is ensured.
Numerous implementations of the take-up unit 4000 are possible, and the take-up unit 4000 includes a pressing member 4100 and a second driving source 4200. The pressing member 4100 is disposed opposite to the spindle unit 0200, and clamps the product P to be processed from both sides. For example, under the action of the pressing member 4100, the product P to be processed is sleeved on the outer surface of the bottom die body 0120 and is attached to the bearing end face 0223 of the rotary cutter 0220. Illustratively, the compression member 4100 is provided with a relief hole 4110 for relieving the nozzle P (b) to avoid interference. The pressing member 4100 has a shape adapted to the product P to be processed, and ensures firm pressing of the product P to be processed against the spindle unit 0200. Illustratively, the compression member 4100 is a flat plate.
The second driving source 4200 is used for driving the pressing member 4100 toward/away from the main shaft unit 0200 to clamp or separate the product P to be processed. Second drive source 4200 is implemented in numerous ways, including linear motor, telescoping cylinder, electric push rod, and the like.
Illustratively, the take-up unit 4000 includes a guide mechanism 4300 for guiding. The guiding mechanism 4300 includes a guide post 4310 and a guide sleeve 4320 slidably retained on the guide post 4310, the guide post 4310 is disposed on the workbench 2000, and the guide sleeve 4320 is fixedly connected with the pressing member 4100. The extending direction of the guide post 4310 coincides with the driving direction of the second driving source 4200, and plays a role in guiding the reciprocating motion of the presser 4100. The number of the guide posts 4310 may be one to plural, and the guide sleeves 4320 are disposed corresponding to the guide posts 4310. When the guide posts 4310 are plural, the guide posts 4310 are disposed parallel to each other.
Illustratively, the pressing unit 4000 includes a limit switch for limiting the movement stroke of the pressing member 4100 to avoid the occurrence of an overshoot accident. The limit switch can comprise a magnetic ring, a proximity switch and the like.
Illustratively, working chamber 2100 is further provided with a safety sensor 4400 for providing a safety sensor to prevent accidental actuation of the cinching unit 4000 from damaging human body parts or other objects within working chamber 2100. For example, the safety sensor 4400 may be a pyroelectric infrared sensor, and senses whether a human body part exists in the working chamber 2100, thereby issuing a sensing instruction; as another example, the safety sensor 4400 may be a photoelectric switch provided at an opening of the working chamber 2100, and may sense whether an obstacle exists at the opening to thereby perform human safety sensing. When the photoelectric switch senses an obstacle, the jacking unit 4000 is locked so that jacking action cannot be realized, and use safety is ensured.
Any particular values in all examples shown and described herein are to be construed as merely illustrative and not a limitation, and thus other examples of exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
The above examples merely represent a few embodiments of the present invention, which are described in more detail and are not to be construed as limiting the scope of the present invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of the invention should be assessed as that of the appended claims.
Claims (5)
1. The utility model provides a mouth of a river rotary-cut tool which characterized in that includes:
the positioning bottom die is used for positioning and bearing a product to be processed, and the product to be processed comprises a product body and a water gap;
the main shaft unit is rotatably held on the positioning bottom die and comprises a rotary main shaft and a rotary cutter, wherein the rotary cutter is arranged at one end of the rotary main shaft, which is close to a product to be processed, and the cutting edge of the rotary cutter faces to the connecting part of the product body and the water gap along the rotation direction of the rotary main shaft;
a driving unit for driving the rotation main shaft to rotate;
the positioning bottom die is provided with a through cavity which penetrates through the positioning bottom die, the rotating main shaft is rotatably kept in the through cavity, the rotary cutting tool protrudes out of the through cavity, and the water gap is opposite to the through cavity;
the positioning bottom die comprises a bottom die body and a protection part arranged at one end of the bottom die body, and the product to be processed is sleeved on the outer surface of the positioning bottom die;
the protection parts are in a plurality and are distributed in a circumferential array along the rotation direction of the rotary spindle, and the rotary cutting tool is positioned between the protection parts and protrudes out of one end of the protection part far away from the bottom die body;
the rotary cutting tool comprises a tool body and the cutting edge, wherein one end, far away from the rotary spindle, of the tool body is a bearing end face, the bearing end face is used for bearing the product to be processed in a fitting mode, and the cutting edge extends outwards from the tool body along the rotary direction of the rotary spindle;
the rotary cutting tools are a plurality of and distributed in a circumferential array along the rotation direction of the rotary spindle.
2. The rotational atherectomy tool of claim 1, wherein the drive unit comprises a drive source and a transmission assembly for effecting mechanical transmission between the drive source and the rotating spindle.
3. The rotational atherectomy device of claim 2, wherein the transmission assembly comprises a driving rack and a driven gear engaged with each other, the driving rack being connected to the drive source, the driven gear being fixedly connected to an end of the rotating spindle remote from the rotational atherectomy tool, the drive source being configured to output a linear reciprocating motion.
4. A nozzle rotational atherectomy jig as defined in claim 3, wherein the transmission assembly further comprises a linear guide and a slider slidably retained on the linear guide, the drive rack being fixedly connected to the slider.
5. A nozzle rotary cutting jig according to claim 3, wherein the transmission assembly further comprises a limit buffer block for constraining the linear motion travel of the driving rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810955344.6A CN109049559B (en) | 2018-08-21 | 2018-08-21 | Rotary cutting jig for water gap |
Applications Claiming Priority (1)
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| CN201810955344.6A CN109049559B (en) | 2018-08-21 | 2018-08-21 | Rotary cutting jig for water gap |
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| CN108839311A (en) * | 2018-08-21 | 2018-11-20 | 深圳市银宝山新科技股份有限公司 | Mouth of a river rotary cutting apparatus |
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| CN203418729U (en) * | 2013-07-04 | 2014-02-05 | 河南联塑实业有限公司 | Automatic nozzle shearing machine for pipe fittings |
| CN203665872U (en) * | 2013-12-27 | 2014-06-25 | 东莞捷荣技术股份有限公司 | Jig for automatically cutting water hole at inclined roof |
| CN203994550U (en) * | 2014-07-04 | 2014-12-10 | 东莞广泽汽车饰件有限公司 | A kind of plastic parts mouth of a river milling tool |
| CN207388214U (en) * | 2017-07-18 | 2018-05-22 | 广东龙昕科技有限公司 | A kind of mouth of a river device for excising |
| CN207388218U (en) * | 2017-10-19 | 2018-05-22 | 深圳兴精科塑胶模具有限公司 | A kind of moulding mouth of a river cuts off sanding apparatus |
| WO2018120866A1 (en) * | 2016-12-30 | 2018-07-05 | 广州蓝圣智能科技有限公司 | Assembly machine for inner cover plate |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203418729U (en) * | 2013-07-04 | 2014-02-05 | 河南联塑实业有限公司 | Automatic nozzle shearing machine for pipe fittings |
| CN203665872U (en) * | 2013-12-27 | 2014-06-25 | 东莞捷荣技术股份有限公司 | Jig for automatically cutting water hole at inclined roof |
| CN203994550U (en) * | 2014-07-04 | 2014-12-10 | 东莞广泽汽车饰件有限公司 | A kind of plastic parts mouth of a river milling tool |
| WO2018120866A1 (en) * | 2016-12-30 | 2018-07-05 | 广州蓝圣智能科技有限公司 | Assembly machine for inner cover plate |
| CN207388214U (en) * | 2017-07-18 | 2018-05-22 | 广东龙昕科技有限公司 | A kind of mouth of a river device for excising |
| CN207388218U (en) * | 2017-10-19 | 2018-05-22 | 深圳兴精科塑胶模具有限公司 | A kind of moulding mouth of a river cuts off sanding apparatus |
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| CN109049559A (en) | 2018-12-21 |
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