CN111872360A - Robot extension arm and casting process thereof - Google Patents
Robot extension arm and casting process thereof Download PDFInfo
- Publication number
- CN111872360A CN111872360A CN202010680051.9A CN202010680051A CN111872360A CN 111872360 A CN111872360 A CN 111872360A CN 202010680051 A CN202010680051 A CN 202010680051A CN 111872360 A CN111872360 A CN 111872360A
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- forming die
- extension arm
- vertical plate
- mold
- rotating mechanism
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- 238000005266 casting Methods 0.000 title claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 65
- 230000007246 mechanism Effects 0.000 claims abstract description 35
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 238000000465 moulding Methods 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 239000012768 molten material Substances 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000002347 injection Methods 0.000 abstract description 4
- 239000007924 injection Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract 1
- 238000004513 sizing Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000005189 flocculation Methods 0.000 description 3
- 230000016615 flocculation Effects 0.000 description 3
- 230000004323 axial length Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/08—Shaking, vibrating, or turning of moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/06—Permanent moulds for shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a robot extension arm and a casting process thereof, wherein the robot extension arm comprises an extension arm main body, the extension arm main body is cast by a forming die, the forming die is rotated by a rotating mechanism, and the rotating mechanism is also provided with a spacing adjusting structure for adjusting spacing; the rotating mechanism comprises a speed reducing motor, the speed reducing motor is connected with a fixing piece in a transmission way, and the fixing piece clamps the forming die; the distance adjusting mechanism comprises a first vertical plate sleeved on the transmission shaft through a bearing, a sleeve is vertically and fixedly connected to one side, close to the forming die, of the top end of the first vertical plate, a ball screw is arranged at the tail end of the sleeve, the tail end of the ball screw is connected with a lead screw in a threaded manner, a bearing at the tail end of the lead screw is connected with a second vertical plate, and the second vertical plate and the first vertical plate are symmetrically arranged on the vertical axis of the forming die; the casting technology comprises the steps of film combination, material injection, material sealing, stroke adjustment, mold fixing, molding mold rotation and sizing. The invention enhances the uniformity of the mixed materials and improves the production range of the materials.
Description
Technical Field
The invention relates to the technical field of robot extension arms, in particular to a robot extension arm and a casting process thereof.
Background
In the casting process of the existing robot extension arm, after materials are injected into a mold, after flowing materials are filled in a cavity, standing and cooling are carried out, and then a blank of the robot extension arm is formed.
The material directly standing and cooling can cause flocculation in the material due to deposition, so that the quality of the formed extension arm is low; and the casting process of the existing robot extension arm is difficult to adapt to different extension arm sizes, different devices are frequently required to be replaced, and the efficiency is low.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the robot extension arm and the casting process thereof, so that the materials of the robot extension arm are not flocculated in the casting process, and the casting quality is improved; and provides a casting of the spacing adjustment mechanism to accommodate robot extension arms of different lengths.
The invention solves the technical problems through the following technical means: the robot extension arm comprises an extension arm main body, wherein the extension arm main body is cast by a forming die, the forming die is rotated by a rotating mechanism, and the rotating mechanism is also provided with a spacing adjusting structure for adjusting the spacing of the rotating mechanism; the rotating mechanism comprises a speed reducing motor, the speed reducing motor is connected with a fixing piece in a transmission way through a transmission shaft, and the fixing piece clamps the forming die; the interval adjusting mechanism comprises a bearing sleeve, a first vertical plate is arranged on the transmission shaft in a sleeved mode, a sleeve is fixedly connected to the top end of the first vertical plate in a perpendicular mode on one side close to the forming die, a ball screw is arranged at the tail end of the sleeve, a screw rod is connected to the tail end of the ball screw in a threaded mode, a tail end bearing of the screw rod is connected with a second vertical plate, and the second vertical plate and the first vertical plate are symmetrically arranged on the vertical axis of the forming die.
Preferably, the fixing part comprises a first fixing part and a second fixing part which are symmetrically arranged, the first fixing part is in transmission connection with a transmission shaft of the speed reducing motor, and the second fixing part is in bearing connection with a side face of the second vertical plate close to the forming die.
Preferably, the top end of the movable die is provided with a feed opening, and the feed opening extends into the movable die and is communicated with a material flow passage; the bottom surface of the movable mold is upwards provided with a cavity and a core, the top surface of the fixed mold is downwards provided with a cavity and a core, and the cavity and the core of the movable mold and the cavity and the core of the fixed mold are vertically symmetrical; the material flow channel is communicated with the cavity of the movable mold, and an electric control stop valve is arranged at the connecting position of the material flow channel and the movable mold cavity.
The robot extension arm comprises a casting process of the extension arm main body, and the casting process comprises the following steps:
(1) film combination; the movable die positioned above the fixed die is driven downwards to close the movable die and the fixed die;
(2) injecting materials; the method comprises the following steps of (1) guiding a molten material into a material flow channel of a die through a feed opening main body, and introducing the material into a cavity of a forming die through the material flow channel;
(3) sealing the materials; the feed opening is sealed in a mode of screwing a valve or threads, and then the electric control stop valve is started to seal a material flow passage and keep the complete sealing of the inner cavities of the movable mold and the fixed mold;
(4) adjusting the stroke; determining the length of a forming die, controlling a ball screw of a spacing adjusting mechanism to rotate so that the screw rod realizes axial displacement in the sleeve, and driving the second vertical plate by the screw rod with the axial displacement so that the stroke between the second vertical plate and the first vertical plate is matched with the length of the forming die;
(5) fixing the mold; the first fixing piece and the second fixing piece of the rotating mechanism are used for axially clamping the molded clamp;
(6) rotating the forming die; starting a speed reducing motor of the rotating mechanism, wherein a transmission shaft of the speed reducing motor rotates at the position of a bearing of the first vertical plate to drive the first fixing piece to rotate, the first fixing piece drives the forming die, and the forming die drives the second fixing piece to rotate at the position of the bearing connection of the second vertical plate, so that the rotation of the material in the forming die in the casting process is realized;
(7) shaping; stopping rotation after the rotation reaches the preset time, and cooling and forming the mold
The invention has the advantages that: in the casting process of the robot extension arm, the casting process for rotating the forming die is added, so that the material flow of the robot extension arm is kept in the forming process of the material of the robot extension arm, the uniformity of the mixed material is enhanced, and the phenomena of material flocculation and low product quality caused by direct forming after the material enters the forming die are avoided; in addition, the casting process is additionally provided with a spacing adjusting mechanism which can adapt to different die sizes, so that extension arm main bodies with different lengths can be produced, and the production range of the extension arm main bodies is improved.
Drawings
FIG. 1 is a schematic view of an extension arm body according to the present invention;
FIG. 2 is a schematic structural view of a molding die according to the present invention;
FIG. 3 is a schematic view of the installation of the rotating mechanism and the spacing adjustment mechanism of the present invention;
wherein: 1. an extension arm body; 2. forming a mold; 3. a rotating mechanism; 4. a spacing adjustment mechanism; 21. moving the mold; 22. fixing a mold; 31. a reduction motor; 32. a fixing member; 41. a first vertical plate; 42. a sleeve; 43. a ball screw; 44. a screw rod; 45. a second vertical plate; 211. a feeding port; 212. a material flow passage; 213. a cavity; 214. a core; 321. a first fixing member; 322. a second fixing member; 2121. an electrically controlled stop valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Embodiment 1, please refer to fig. 1 to 3, the present invention provides a robot extension arm, which includes an extension arm main body 1, wherein the extension arm main body 1 is cast by a forming mold 2, the forming mold 2 is rotated by a rotating mechanism 3, and the rotating mechanism 3 is further provided with a spacing adjustment structure for adjusting a spacing of the rotating mechanism 3; the forming die 2 comprises a movable die 21 and a fixed die 22 which are distributed up and down; the rotating mechanism 3 comprises a speed reducing motor 31, the speed reducing motor 31 is connected with a fixing piece 32 through a transmission shaft in a transmission manner, and the fixing piece 32 is used for fixing the matched mold 2.
In the structure, the fixing part 32 of the rotating structure is used for clamping and fixing the forming mold 2, the speed reducing motor 31 drives the fixing part 32 after being started, so that the speed reducing motor 31 drives the forming mold 2 to rotate, then, the materials in the forming mold 2 form a high-speed motion effect in the cavity 213, the materials are always in a motion state, the phenomenon that the materials of the extension arm main body 1 flocculate due to long-term deposition in the melting process of the materials in the forming mold 2 is avoided, the uniformity of the materials in the casting process of the extension arm main body 1 is ensured, and the casting quality of the extension arm main body 1 is improved.
As one embodiment of this embodiment, referring to fig. 3, the distance adjusting mechanism 4 includes a first vertical plate 41 sleeved on the transmission shaft through a bearing, a sleeve 42 is vertically and fixedly connected to a top end of the first vertical plate 41 at a side close to the forming mold 2, a ball screw 43 is disposed at a tail end of the sleeve 42, a screw 44 is threadedly connected to a tail end of the ball screw 43, a tail end bearing of the screw 44 is connected to a second vertical plate 45, and the second vertical plate 45 and the first vertical plate 41 are symmetrically disposed on a vertical axis of the forming mold 2.
In the above structure, the ball screw 43 is used for adjusting the axial length of the screw rod 44 in the sleeve 42, and the adjustment of the axial length of the screw rod 44 drives the second vertical plate 45, so that a freely adjustable stroke can be formed between the second vertical plate 45 and the first vertical plate 41, and the length of the forming die 2 can be matched, and the casting of the extension arm main body 1 with different lengths can be matched.
As one embodiment of this embodiment, referring to fig. 2, a feed opening 211 is formed at a top end of the movable mold 21, and the feed opening 211 extends into the movable mold 21 and is communicated with a material flow passage 212; the bottom surface of the movable mold 21 is upwards provided with a cavity 213 and a core 214, the top surface of the fixed mold 22 is downwards provided with the cavity 213 and the core 214, and the cavity 213 and the core 214 of the movable mold 21 and the cavity 213 and the core 214 of the fixed mold 22 are vertically symmetrical; the material flow passage 212 is communicated with the cavity 213 of the movable mold 21, and an electrically controlled stop valve 2121 is arranged at the connecting position of the material flow passage 212 and the cavity 213 of the movable mold 21.
The feed opening 211 is used for feeding the material of the extension arm main body 1, the material extends into the material flow channel 212 through the feed opening 211 and then is introduced into the cavity 213 of the movable mold 21 and the cavity 213 of the fixed mold 22, the feed opening 211 is arranged at the top end of the movable mold 21, and the gravity settling mode of the material avoids material injection from the side or the bottom, so that the material injection pressure can be saved; after the material injection is completed, the material discharge opening 211 and the material flow passage 212 are closed, wherein the material flow passage 212 is located inside the forming mold 2 and is closed by the electrically controlled stop valve 2121, and the electrically controlled stop valve 2121 may be a commercially available valve, such as an LED series valve.
As one embodiment of this embodiment, referring to fig. 3, the fixing part 32 includes a first fixing part 321 and a second fixing part 322 that are symmetrically disposed, the first fixing part 321 is in transmission connection with a transmission shaft of the speed reducing motor 31, and the second fixing part 322 is in bearing connection with a side of the second vertical plate 45 close to the forming mold 2.
The first fixing member 321 and the second fixing member 322 are used for fixing two ends of the forming mold 2, and the first fixing member 321 and the second fixing member 322 can adopt a chuck structure to realize radial clamping of two sides of the forming mold 2, so that clamping stability is improved.
The invention also provides a casting process of the robot extension arm, which comprises the following steps:
(1) film combination; the movable die 21 positioned above the fixed die 22 is driven downwards, so that the movable die 21 and the fixed die 22 are closed;
(2) injecting materials; guiding the molten material into a material flow channel 212 of the mold 21 through the main body of the feed opening 211, and introducing the material into a cavity 213 of the molding mold 2 through the material flow channel 212;
(3) sealing the materials; the feed opening 211 is sealed in a mode of screwing a valve or a thread, and then the electric control stop valve 2121 is started to seal the material flow passage 212 and keep the complete sealing of the cavity 213 in the movable die 21 and the fixed die 22;
(4) adjusting the stroke; determining the length of the forming die 2, controlling the ball screw 43 of the spacing adjusting mechanism 4 to rotate, so that the screw 44 realizes axial displacement in the sleeve 42, and the screw 44 with the axial displacement drives the second vertical plate 45, so that the stroke between the second vertical plate 45 and the first vertical plate 41 is matched with the length of the forming die 2;
(5) fixing the mold; the clamped molding jig is axially clamped by a first fixing member 321 and a second fixing member 322 of the rotating mechanism 3;
(6) the forming die 2 rotates; starting the gear motor 31 of the rotating mechanism 3, the transmission shaft of the gear motor 31 rotates at the bearing position of the first vertical plate 41 to drive the first fixing member 321 to rotate, the first fixing member 321 drives the forming die 2, the forming die 2 drives the second fixing member 322 to rotate at the bearing connecting position of the second vertical plate 45, and then the rotation of the material in the forming die 2 in the casting process is realized.
(7) Shaping; and after the mold rotates to the preset time, stopping rotating, and cooling and molding the mold.
In the casting process of the robot extension arm, the casting process for rotating the forming die is added, so that the material flow of the robot extension arm is kept in the forming process of the material of the robot extension arm, the uniformity of the mixed material is enhanced, and the phenomena of material flocculation and low product quality caused by direct forming after the material enters the forming die are avoided; in addition, the casting process is additionally provided with a spacing adjusting mechanism which can adapt to different die sizes, so that extension arm main bodies with different lengths can be produced, and the production range of the extension arm main bodies is improved.
It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (4)
1. The robot extension arm comprises an extension arm main body (1), wherein the extension arm main body (1) is cast by a forming die (2), and the robot extension arm is characterized in that the forming die (2) is rotated by a rotating mechanism (3), and the rotating mechanism (3) is also provided with a spacing adjusting structure for adjusting the spacing of the rotating mechanism (3); the rotating mechanism (3) comprises a speed reducing motor (31), the speed reducing motor (31) is in transmission connection with a fixing piece (32) through a transmission shaft, and the fixing piece (32) clamps the forming die (2); spacing adjustment mechanism (4) include the bearing housing and establish epaxial first riser (41) of transmission, the top of first riser (41) be close to the perpendicular rigid coupling in one side of forming die (2) and have sleeve pipe (42), sleeve pipe (42) end is equipped with ball (43), the terminal threaded connection of ball (43) has lead screw (44), second riser (45) are connected to the end bearing of lead screw (44), second riser (45) and first riser (41) are in the vertical axis symmetry setting of forming die (2).
2. The extension arm of the robot as claimed in claim 1, wherein the fixing member (32) comprises a first fixing member (321) and a second fixing member (322) which are symmetrically arranged, the first fixing member (321) is in transmission connection with a transmission shaft of the reduction motor (31), and the second fixing member (322) is in bearing connection with the second vertical plate (45) at a side close to the forming die (2).
3. The extension arm of the robot as claimed in claim 1, wherein a feed opening (211) is formed at the top end of the movable mold (21), and the feed opening (211) extends into the movable mold (21) and is communicated with a material flow passage (212); the bottom surface of the movable mold (21) is upwards provided with a cavity (213) and a core (214), the top surface of the fixed mold (22) is downwards provided with the cavity (213) and the core (214), and the cavity (213) and the core (214) of the movable mold (21) are vertically symmetrical with the cavity (213) and the core (214) of the fixed mold (22); the material flow channel (212) is communicated with the cavity (213) of the movable mold (21), and an electric control stop valve (2121) is arranged at the connecting position of the material flow channel (212) and the cavity (213) of the movable mold (21).
4. The robotic extension arm according to claim 1, characterized by comprising a casting process of the extension arm body (1) with the following steps:
(1) film combination; a movable die (21) positioned above the fixed die (22) is driven downwards, so that the movable die (21) and the fixed die (22) are closed;
(2) injecting materials; guiding the molten material into a material flow channel (212) of a movable mold (21) through a main body of a feed opening (211), and introducing the material into a cavity (213) of a forming mold (2) through the material flow channel (212);
(3) sealing the materials; the feed opening (211) is sealed in a mode of screwing a valve or a thread, and then the electric control stop valve (2121) is started to seal the material flow passage (212) and keep the complete sealing of the inner cavities (213) of the movable mold (21) and the fixed mold (22);
(4) adjusting the stroke; determining the length of the forming die (2), controlling a ball screw (43) of the spacing adjusting mechanism (4) to rotate, so that the screw (44) realizes axial displacement in the sleeve (42), and the screw (44) with the axial displacement drives the second vertical plate (45) to enable the stroke between the second vertical plate (45) and the first vertical plate (41) to be matched with the length of the forming die (2);
(5) fixing the mold; the clamped molding clamp is axially clamped by a first fixing part (321) and a second fixing part (322) of the rotating mechanism (3);
(6) the forming die (2) rotates; starting a speed reducing motor (31) of the rotating mechanism (3), wherein a transmission shaft of the speed reducing motor (31) rotates at the bearing position of the first vertical plate (41) to drive the first fixing piece (321) to rotate, the first fixing piece (321) drives the forming die (2), the forming die (2) drives the second fixing piece (322) to rotate at the bearing connecting position of the second vertical plate (45), and then the rotation of the material in the forming die (2) in the casting process is realized;
(7) shaping; and after the mold rotates to the preset time, stopping rotating, and cooling and molding the mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010680051.9A CN111872360A (en) | 2020-07-15 | 2020-07-15 | Robot extension arm and casting process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010680051.9A CN111872360A (en) | 2020-07-15 | 2020-07-15 | Robot extension arm and casting process thereof |
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| CN111872360A true CN111872360A (en) | 2020-11-03 |
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| CN202010680051.9A Pending CN111872360A (en) | 2020-07-15 | 2020-07-15 | Robot extension arm and casting process thereof |
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Application publication date: 20201103 |