CN211135834U - Reflow soldering equipment and guide rail mechanism thereof - Google Patents
Reflow soldering equipment and guide rail mechanism thereof Download PDFInfo
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- CN211135834U CN211135834U CN201920432086.3U CN201920432086U CN211135834U CN 211135834 U CN211135834 U CN 211135834U CN 201920432086 U CN201920432086 U CN 201920432086U CN 211135834 U CN211135834 U CN 211135834U
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Abstract
The utility model discloses a reflow soldering equipment and a guide rail mechanism thereof, the guide rail mechanism comprises a movable rail, an original point detection piece, a driving assembly and a controller which is respectively connected with the original point detection piece and the driving assembly, the fixed position of the original point detection piece is assumed as an original point, when the original point detection piece detects that the movable rail deviates from the original point, the original point detection piece sends a signal to the controller, and the controller starts the driving assembly to drive the movable rail to move to the original point; when the origin detection part detects that the movable track is located at the origin, the origin detection part sends a signal to the controller, and the controller controls the driving assembly to stop driving the movable track, so that the movable track is kept to stay at the origin. Before the preset width is input into the controller, the movable rail can be adjusted by taking the original point as a reference point, so that the movable rail can start from the original point, and the actual moving width of the movable rail is closer to the preset width, and the movable rail can be accurately adjusted.
Description
Technical Field
The utility model relates to a reflow soldering technical field, in particular to guide rail mechanism. The utility model discloses still relate to a reflow soldering equipment who contains above-mentioned guide rail mechanism.
Background
The reflow soldering apparatus is usually provided with a guide rail mechanism for conveying the circuit boards in the furnace body, so that the circuit boards can be conveniently welded in the corresponding furnace bores. In order to improve the adaptability of the existing reflow soldering equipment, the existing reflow soldering equipment generally adopts a combined guide rail, the combined guide rail comprises a fixed rail fixed in a furnace body and a movable rail sliding relative to the fixed rail, and the guide rail mechanism can be suitable for conveying circuit boards with different sizes by adjusting the width between the fixed rail and the movable rail. Accordingly, the existing reflow soldering apparatus is provided with a rail automatic adjusting assembly for adjusting the movement of the movable rail.
However, the conventional automatic track adjusting assembly generally includes a control portion and a driving portion, and when the control portion receives the theoretical moving distance of the movable track, the control portion controls the driving portion to drive the movable track to move with the current position as a starting point. In view of the difference of the control precision of the control part, after the movable rail slides each time, certain deviation exists between the actual moving distance and the theoretical moving distance of the movable rail inevitably to a certain extent. What is more, the deviation accumulation is inevitably caused after the movable rail moves for many times, and the accuracy of the width between the movable rail and the fixed rail is seriously influenced.
Therefore, how to accurately adjust the movable rail is a technical problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a guide rail mechanism, which enables a movable rail to move from an original point according to a preset width at every time, so as to accurately adjust the movable rail. Another object of the present invention is to provide a reflow soldering apparatus including the above-mentioned guide rail mechanism, which has better safety.
The specific scheme is as follows:
the utility model provides a guide rail mechanism, including the activity track, still include:
an origin detecting member fixedly provided to the frame to detect whether the movable rail is located at an origin;
the driving component is connected with the movable track to drive the movable track to move according to a preset width;
and the controller is respectively connected with the origin detection part and the driving component and is used for starting the driving component to drive the movable track to move to the origin when the movable track deviates from the origin according to a signal sent by the origin detection part before the preset width is obtained so as to enable the movable track to move from the origin according to the preset width.
Preferably, the method further comprises the following steps:
a fixed rail for fixing relative to the frame;
the controller controls the driving assembly to stop driving the movable track according to a signal sent by the anti-collision detection piece so as to prevent the movable track from colliding with the fixed track.
Preferably, the method further comprises the following steps:
an extreme position detecting member connected to the controller to detect whether the movable rail is at an extreme position; the controller controls the driving assembly to stop driving the movable rail when the movable rail moves to the limit position according to the signal sent by the limit position detection piece.
Preferably, the drive assembly comprises:
the lead screw is connected with the controller and used for driving the movable track to be close to or far away from the fixed track;
the rotary encoder is connected with the controller, is arranged on the lead screw and is used for detecting the rotating speed of the lead screw;
the timer is connected with the controller and is used for recording the rotation time of the lead screw;
and the controller calculates the actual moving distance of the movable track according to signals sent by the rotary encoder and the timer respectively so as to control the lead screw to stop rotating when the actual moving distance is equal to the preset width.
Preferably, the method further comprises the following steps:
the circuit board detection part is connected with the controller and used for detecting the width of the circuit board; the circuit board detection piece sends a detection signal to the controller to obtain the preset width.
Preferably, the method further comprises the following steps:
and the control panel is connected with the controller to send the input preset width to the controller.
Preferably, the method further comprises the following steps:
the distance detection piece is connected with the controller and used for detecting the current width between the movable track and the fixed track; and the controller controls the driving assembly to drive the movable track to move until the current width is consistent with the preset width according to the signal sent by the distance detection piece when the current width is inconsistent with the preset width.
The utility model also provides a reflow soldering equipment, including the furnace body and as above arbitrary the guide rail mechanism, guide rail mechanism locates in the furnace body.
Compared with the prior art, the utility model provides a guide rail mechanism, including activity track, initial point detection piece, drive assembly and controller. The origin detection piece is fixed on the rack, and the position fixed by the origin detection piece can be assumed as the origin, namely the origin can be used as an absolute reference point of the movable track.
When the origin detection part detects that the movable rail deviates from the origin, the origin detection part sends a signal to the controller, and the controller starts the driving assembly to enable the driving assembly to drive the movable rail to move until the movable rail moves to the origin; when the origin detection part detects that the movable rail is located at the origin, the origin detection part sends a signal to the controller, the controller controls the driving assembly to stop acting, and the driving assembly stops driving the movable rail to enable the movable rail to stay at the origin.
Therefore, when the preset width is not input into the controller, the movable rail can be adjusted by taking the original point as a reference point, so that the movable rail can start from the original point every time, the accumulated deviation existing before the movable rail moves is eliminated, the controller is convenient to control the actual width of the movable rail to move to be closer to the preset width, and the movable rail is accurately adjusted.
The utility model provides a reflow soldering equipment who contains above-mentioned guide rail mechanism can accurately adjust the width because of guide rail mechanism, reduces the risk that the circuit board falls in transportation process, and the security is better.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a structural diagram of a guide rail mechanism according to an embodiment of the present invention.
The reference numbers are as follows:
the device comprises a rack 1, a movable track 2, a fixed track 3, a driving assembly 4, an origin detection piece 5, an anti-collision detection piece 6 and an extreme position detection piece 7;
a lead screw 41 and a rotary encoder 42.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, fig. 1 is a structural diagram of a guide rail mechanism according to an embodiment of the present invention.
The embodiment of the utility model discloses guide rail mechanism, including activity track 2, wherein, the concrete structure of activity track 2 can refer to prior art.
The utility model discloses still include initial point detection piece 5, drive assembly 4 and controller, wherein, initial point detection piece 5 is fixed in on the frame 1, in this embodiment, the position that initial point detection piece 5 was fixed is the initial point, also is the absolute reference point of activity track 2 promptly. The origin detection element 5 is mainly used for detecting whether the movable rail 2 is located at an origin, preferably, the origin detection element 5 is an obstacle sensor, and may be a reflective photoelectric sensor, for example, a reflector is installed on the movable rail 2, when the movable rail 2 moves to the origin, the origin detection element 5 detects the reflector, and the reflector triggers the origin detection element 5, so that the origin detection element 5 sends information to the controller, and the controller executes the received signal. Of course, the type of the origin detector 5 is not limited to this, and may be an electromagnetic type, a voltage type, a laser type, or the like, and is not particularly limited herein.
The controller is respectively connected with the origin detection part 5 and the driving part 4, and before the preset width is not obtained, the controller starts the driving part 4 to drive the movable rail 2 to move to the origin according to a signal sent by the origin detection part 5 when the movable rail 2 deviates from the origin so as to enable the movable rail 2 to move from the origin according to the preset width.
The controller includes a signal receiving unit, a signal determining unit, and a signal transmitting unit, and the controller having this structure is widely used in existing smart devices, for example, smart homes. The signal receiving part is used for receiving a signal sent by the origin detecting part 5, the signal judging part is used for judging whether the movable track 2 deviates from the origin or not according to the received signal, and the signal sending part sends a corresponding control signal to the driving component 4 according to the judgment result of the signal judging part so as to enable the driving component 4 to correspondingly move or stop. It can be seen that the key improvement of the present invention is the combination of the controller, the origin detector 5 and the driving assembly 4.
Specifically, when the origin detection part 5 detects that the movable rail 2 deviates from the origin, the origin detection part 5 sends a signal to the controller, and the controller starts the driving component 4 to enable the driving component 4 to drive the movable rail 2 to move until the movable rail 2 moves to the origin; when the origin detection part 5 detects that the movable rail 2 is at the origin, the origin detection part 5 sends a signal to the controller, the controller controls the driving component 4 to stop acting, and the driving component 4 stops driving the movable rail 2, so that the movable rail 2 is kept to stay at the origin.
Before the preset width is not input into the controller, the movable rail 2 can be adjusted by taking the original point as a reference point, so that the movable rail 2 can start from the original point every time, the accumulated deviation existing before the movable rail 2 moves is eliminated, the controller is convenient to control the actual moving width of the movable rail 2 to be closer to the preset width, and the movable rail 2 is accurately adjusted.
The utility model discloses still include for frame 1 fixed trapped orbit 3, trapped orbit 3's structure can specifically refer to prior art.
For promoting the security, the utility model discloses still include the anticollision detection piece 6 that links to each other with the controller, when activity track 2 got into the detection range of anticollision detection piece 6, anticollision detection piece 6 send signal to controller, and controller control drive assembly 4 stops the action, and drive assembly 4 stops the removal of drive activity track 2 to prevent to bump between activity track 2 and the fixed track 3, the security promotes to some extent naturally.
The anti-collision detection piece 6 is preferably arranged on the fixed track 3, and is particularly arranged on the side face of the fixed track 3 opposite to the movable track 2, so that the anti-collision detection piece 6 further plays a role in separating the fixed track 3 from the movable track 2, and correspondingly, an elastic rubber pad can be additionally arranged on one side, close to the movable track 2, of the anti-collision detection piece 6, so that the effect of buffering the movable track 2 is achieved, and mechanical anti-collision is realized. Of course, the collision prevention detection member 6 may also be mounted on the movable rail 2, and is not particularly limited herein. The collision prevention detection member 6 may be an obstacle sensor, a distance measurement sensor, a travel switch, or the like, and the type is not limited herein.
For further promote the security, the utility model discloses still include the extreme position detection piece 7 that links to each other with the controller to whether detect movable rail 2 and be in extreme position, prevent that parts such as movable rail 2 and frame 1 from colliding. When the movable rail 2 moves to the limit position, the limit position detection part 7 sends a signal to the controller, and the controller controls the driving assembly 4 to stop driving the movable rail 2, so that the movable rail 2 is prevented from colliding with the frame 1 and other parts, or the movable rail 2 is prevented from being separated from the frame 1, and the safety is naturally improved.
The limit position detector 7 may be fixedly arranged on the inner side surface of the frame 1, preferably on the side of the movable rail 2 away from the fixed rail 3, so that the limit position detector 7 cooperates with the anti-collision detector 6 to limit the safe distance that the movable rail 2 is allowed to move on the frame 1. The limit position detector 7 may be an obstacle sensor, a distance measuring sensor, a travel switch, or the like, and the type is not limited herein.
Preferably, the driving assembly 4 includes a lead screw 41 connected to the controller and a nut slider fixedly connected to the movable rail 2, and when the lead screw 41 rotates, the nut slider drives the movable rail 2 to move linearly along the lead screw 41. Correspondingly, the driving assembly 4 further comprises a motor connected to the end of the lead screw 41, and of course, the motor may be replaced by a servo motor without affecting the purpose of the present invention.
In addition, the driving assembly 4 further comprises a rotary encoder 42 and a timer respectively connected to the controller, wherein the rotary encoder 42 is mounted on the lead screw 41 for detecting the rotation speed of the lead screw 41 and sending the detected rotation speed signal to the controller. A timer is mounted on the lead screw 41 for recording the time when the lead screw 41 is rotated and transmitting the recorded time to the controller.
The controller calculates the actual moving distance of the movable track 2 according to the rotating speed signal generated by the rotary encoder 42 and the time signal sent by the timer, compares the actual moving distance of the movable track 2 with the input preset width, and controls the lead screw 41 to stop rotating when the actual moving distance is equal to the preset width, which means that the movable track 2 has completed moving; otherwise, when the actual moving distance is not equal to the preset width, the controller controls the lead screw 41 to continue to rotate until the actual moving distance is equal to the preset width. Therefore, the movable rail 2 is automatically controlled to move according to the preset width, the moving error is small, the moving precision is high, and the movable rail 2 can be further accurately adjusted.
Of course, the structure of the driving assembly 4 is not limited thereto, and the use of a similar structure does not affect the achievement of the object of the present invention.
Preferably, the utility model discloses still include the circuit board detection piece that links to each other with the controller, detect the width of waiting to carry the circuit board through the circuit board, the width signal transmission who detects is to the controller to the circuit board detection piece simultaneously to the controller acquires accurate width of predetermineeing. The circuit board detecting member may be an obstacle sensor, a distance measuring sensor, a travel switch, or the like, and the type is not limited herein.
Of course, the width information of each circuit board to be conveyed can be input into the storage unit of the controller in advance through modes such as two-dimensional code scanning or camera snapshot, only the width information corresponding to the storage unit needs to be called by the controller when the controller is used, and therefore the controller also obtains the preset width.
In addition, the invention also comprises a control panel connected with the controller, when the movable track 2 moves to the original point, the preset width is manually input to the control panel, the control panel sends the preset width to the controller, and the controller can also obtain the preset width.
It should be noted from this that, the obtaining of the preset width is not limited to the above-mentioned manner, and the obtaining by other manners does not affect the achievement of the object of the present invention.
Preferably, the utility model discloses still include the distance that links to each other with the controller and detect a, the distance detects a current width between detection movable track 2 and the fixed track 3, when current width with predetermine the width inconsistent, distance detection send signal to controller, controller drive assembly 4 drive movable track 2 removes, until current width with predetermine the width unanimous to compensate movable track 2 actual displacement and predetermine the width between have the deviation, be favorable to further accurate regulation movable track 2. Preferably, the distance detecting member may be an obstacle sensor, a distance measuring sensor, a travel switch, or the like, and the type is not limited herein.
The utility model provides a reflow soldering equipment, including furnace body and above-mentioned guide rail mechanism, guide rail mechanism locates in the furnace body, because of guide rail mechanism can accurately adjust the width, reduces the risk that the circuit board falls in transportation process, so the security is better.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A guide rail mechanism comprises a movable rail (2), and is characterized by further comprising:
an origin detecting member (5) fixedly provided to the frame (1) to detect whether the movable rail (2) is located at an origin;
the driving component (4) is connected with the movable track (2) to drive the movable track (2) to move according to a preset width;
the controller is respectively connected with the origin detection piece (5) and the driving component (4) and used for acquiring the preset width, and the controller is used for starting the driving component (4) to drive the movable track (2) to move to the origin so that the movable track (2) moves from the origin according to the preset width according to the signal sent by the origin detection piece (5) when the movable track (2) deviates from the origin.
2. The track mechanism of claim 1, further comprising:
a fixed rail (3) for fixing relative to the frame (1);
the anti-collision detection piece (6) is connected with the controller, and the controller is used for controlling the driving assembly (4) to stop driving the movable track (2) according to a signal sent by the anti-collision detection piece (6) so as to prevent the movable track (2) from colliding with the fixed track (3).
3. The track mechanism of claim 1, further comprising:
a limit position detecting member (7) connected to the controller to detect whether the movable rail (2) is at a limit position; the controller is used for controlling the driving component (4) to stop driving the movable track (2) when the movable track (2) moves to the limit position according to the signal sent by the limit position detection piece (7).
4. Guide rail mechanism according to claim 2, characterized in that the drive assembly (4) comprises:
the lead screw (41) is connected with the controller and is used for driving the movable track (2) to be close to or far away from the fixed track (3);
the rotary encoder (42) is connected with the controller, is installed on the lead screw (41) and is used for detecting the rotating speed of the lead screw (41);
the timer is connected with the controller and is used for recording the rotation time of the lead screw (41);
the controller calculates the actual moving distance of the movable track (2) according to signals sent by the rotary encoder (42) and the timer respectively so as to control the lead screw (41) to stop rotating when the actual moving distance is equal to the preset width.
5. The track mechanism of claim 4, further comprising:
the circuit board detection part is connected with the controller and used for detecting the width of the circuit board; the circuit board detection piece sends a detection signal to the controller to obtain the preset width.
6. The track mechanism of claim 4, further comprising:
and the control panel is connected with the controller to send the input preset width to the controller.
7. The rail mechanism according to any one of claims 4 to 6, further comprising:
the distance detection piece is connected with the controller and used for detecting the current width between the movable track (2) and the fixed track (3); the controller is used for controlling the driving assembly (4) to drive the movable track (2) to move until the current width is consistent with the preset width according to the signal sent by the distance detection piece when the current width is inconsistent with the preset width.
8. Reflow soldering apparatus, comprising a furnace body and a rail mechanism according to any one of claims 1 to 7, the rail mechanism being provided in the furnace body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920432086.3U CN211135834U (en) | 2019-03-29 | 2019-03-29 | Reflow soldering equipment and guide rail mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920432086.3U CN211135834U (en) | 2019-03-29 | 2019-03-29 | Reflow soldering equipment and guide rail mechanism thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211135834U true CN211135834U (en) | 2020-07-31 |
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ID=71759367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920432086.3U Active CN211135834U (en) | 2019-03-29 | 2019-03-29 | Reflow soldering equipment and guide rail mechanism thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211135834U (en) |
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2019
- 2019-03-29 CN CN201920432086.3U patent/CN211135834U/en active Active
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