CN110767398A

CN110767398A - High-reliability winding resistor production equipment

Info

Publication number: CN110767398A
Application number: CN201911204437.6A
Authority: CN
Inventors: 肖杰; 杨小英; 李海剑; 杨顺
Original assignee: Hunan Bi Construction Pml Precision Mechanism Ltd
Current assignee: Hunan Bi Construction Pml Precision Mechanism Ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-02-07

Abstract

The invention relates to the technical field of electronic element production equipment, and particularly discloses high-reliability winding resistor production equipment which comprises a workbench, a pressing mechanism arranged on the workbench and used for quickly fixing the end part of a resistor, and a rack connected with the workbench through a vertical lifting mechanism; the rack is provided with a clamping mechanism and a driving mechanism for driving the clamping mechanism to rotate around a vertical shaft; the clamping mechanism comprises a rotating shaft and two clamping plates which are vertically parallel, the end parts of the clamping plates are movably connected with the end part of the rotating shaft, and an opening and closing mechanism for opening and clamping the lower ends of the two clamping plates is arranged between the two clamping plates; and a welding gun is arranged above the workbench and is arranged on the movable end of the transverse moving mechanism. This equipment is through with even, inseparable coiling of wire winding end at the stitch root, welds again to solve above-mentioned wire winding end and stitch junction contact failure technical problem, and can find accurate location to the welding point fast, the product uniformity that the welding came out is better.

Description

High-reliability winding resistor production equipment

Technical Field

The invention relates to the technical field of electronic element production, in particular to high-reliability winding resistor production equipment.

Background

The winding resistor is made by winding nickel-chromium wire, manganese-copper wire and constantan wire on a porcelain tube, and is widely applied by virtue of the advantages of extremely high resistance precision, small noise during working, stability, reliability, small temperature coefficient, capability of bearing high temperature and the like.

Wire winding resistance is in the in-process of processing preparation, wire-wound both ends need weld with two stitchs on the insulating porcelain pipe, it welds through handheld welder to have mostly, when this welded operation, the operator is often just simple to take the wire winding end at the stitch root and welds, because its contact point is less, the rosin joint that the welding caused, the debris influence of welding department, and insulating layer part on the wire winding end does not get rid of a series of comprehensive factors such as clean, lead to the contact failure of wire winding both ends and stitch junction, the condition of unusual work will appear when resistance is not used or short-term use, therefore this problem is waited to solve urgently.

Disclosure of Invention

In view of the above, an object of the present invention is to provide a high-reliability winding resistor production apparatus, in which a winding end is uniformly and tightly wound around a root of a pin, and then welded, so as to solve the technical problem of poor contact at a joint between the winding end and the pin, and the welding point can be quickly aligned and positioned, and the welded product has good consistency.

In order to achieve the purpose, the invention adopts the following technical scheme:

a high-reliability winding resistor production device comprises a workbench, a pressing mechanism arranged on the workbench and used for rapidly fixing the end part of a resistor, and a rack connected with the workbench through a vertical lifting mechanism; the rack is provided with a clamping mechanism and a driving mechanism for driving the clamping mechanism to rotate around a vertical shaft; the clamping mechanism comprises a rotating shaft and two clamping plates which are vertically parallel, the end parts of the clamping plates are movably connected with the end part of the rotating shaft, and an opening and closing mechanism for opening and clamping the lower ends of the two clamping plates is arranged between the two clamping plates; and a welding gun is arranged above the workbench and is arranged on the movable end of the transverse moving mechanism.

Furthermore, flanges are oppositely arranged on the opposite inner walls of the two clamping plates, and a clamping space is defined by the two flanges and the two clamping plates.

Furthermore, the opposite inner walls of the two clamping plates are provided with a spike bulge.

Furthermore, hold-down mechanism is including setting up the heavy platform on the workstation and being located heavy at least one horizontally movable kicking block of platform inner wall, compresses tightly the resistance tip through the kicking block tip.

Further, the driving mechanism comprises a stepping motor and a gear assembly, and the output end of the stepping motor is in transmission connection with the end part of the rotating shaft through the gear assembly.

Furthermore, the vertical lifting mechanism comprises a guide assembly and a jacking mechanism, the lower end of the guide assembly is connected with the workbench, and the upper end of the guide assembly is connected with the rack; the jacking mechanism is arranged between the workbench and the rack and used for enabling the rack to move upwards and reset.

Furthermore, a horizontal sliding rail is arranged at the end part of the rotating shaft, and the two clamping plates are matched and slidably connected with the horizontal sliding rail; the opening and closing mechanism comprises an electromagnet and an elastic component, the electromagnet is arranged on one clamping plate, and the other clamping plate is correspondingly provided with a suction part; the elastic component is arranged between the two clamping plates and is used for expanding the clamping plates.

Furthermore, the transverse moving mechanism comprises a horizontal guide rail fixedly arranged, a sliding seat arranged on the horizontal guide rail and a telescopic rod vertically arranged on the sliding seat, and the welding gun is arranged on the telescopic rod.

Furthermore, the upper end of the telescopic rod is hinged to a mounting seat capable of rotating around a horizontal shaft, and a C-shaped bayonet used for clamping a welding gun is arranged on the mounting seat.

Compared with the prior art, the invention has the beneficial effects that: the device welds at the stitch root through even, inseparable coiling of end of winding to solve above-mentioned end of winding and stitch junction contact's technical problem. In the invention

1. When the clamping plate clamps the reserved sections of the resistor pin and the winding end, the reserved sections of the resistor pin and the winding end are located in the clamping space, and the rib prevents the reserved sections of the winding end from falling off between the two clamping plates when the clamping mechanism rotates.

2. This equipment is through with even, inseparable coiling of wire winding end at the stitch root, welds again to solve above-mentioned wire winding end and stitch junction contact failure technical problem, and can find accurate location to the welding point fast, the product uniformity that the welding came out is better.

3. The insulation layer on the reserved section of the winding end can be scraped by the sharp projection on the inner wall of the clamping plate at least partially so as not to influence the subsequent welding effect.

4. According to the invention, the welding gun is moved to enable the head of the welding gun to be rapidly contacted with the stitch welding position for welding, the welding point can be rapidly accurately positioned, the consistency of the welded product is better, after the welding is finished, the welding gun can be manually moved away, the operation is simple, and the use is convenient.

Drawings

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. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the 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.

Fig. 1 is a schematic front view of the present invention.

FIG. 2 is a schematic side view of the clamping mechanism of FIG. 1 according to the present invention.

FIG. 3 is a bottom view of the clamping mechanism of FIG. 1 according to the present invention.

FIG. 4 is a schematic top view of the pressing mechanism of FIG. 1 according to the present invention.

FIG. 5 is a schematic view of a finished product of the invention with a wire winding end welded to a resistor pin.

FIG. 6 is a side view of the lateral shifting mechanism of FIG. 1 according to the present invention.

FIG. 7 is a side view of the mounting base of FIG. 1.

In the figure: 1. a work table; 2. a hold-down mechanism; 21. sinking a platform; 22. a top block; 3. a frame; 4. a clamping mechanism; 41. a rotating shaft; 42. a clamping plate; 43. blocking edges; 44. a sharp bulge; 45. a horizontal slide rail; 5. a drive mechanism; 51. a stepping motor; 52. a gear assembly; 6. an opening and closing mechanism; 61. an electromagnet; 62. an elastic member; 7. a welding gun; 8. a lateral movement mechanism; 81. a horizontal guide rail; 82. a sliding seat; 83. a telescopic rod; 84. a mounting seat; 85. a C-shaped bayonet; 11. a guide assembly; 12. a jacking mechanism.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 7, in a specific embodiment, the present invention provides a high-reliability winding resistor production apparatus, which includes a worktable 1, a pressing mechanism 2 disposed on the worktable 1 for rapidly fixing an end of a resistor, and a frame 3 connected to the worktable 1 through a vertical lifting mechanism; the frame 3 is provided with a clamping mechanism 4 and a driving mechanism 5 for driving the clamping mechanism 4 to rotate around a vertical shaft; the clamping mechanism 4 comprises a rotating shaft 41 and two clamping plates 42 which are vertically parallel, the end parts of the clamping plates 42 are movably connected with the end part of the rotating shaft 41, and an opening and closing mechanism 6 for opening and clamping the lower ends of the two clamping plates 42 is arranged between the two clamping plates 42; and a welding gun 7 is also arranged above the workbench 1, and the welding gun 7 is arranged on the movable end of the transverse moving mechanism 8.

Specifically, the winding resistor is shown in fig. 1, a working position is arranged on a workbench 1 and used for placing the winding resistor, the resistor is stably placed on the workbench 1, one end of a resistor pin is arranged on the upper side, and meanwhile, a reserved section with a certain length is reserved at the end of the winding pin and is kept parallel to the pin; the bottom of the resistor is quickly fixed on the workbench 1 through the pressing mechanism 2, and the pressing mechanism 2 can be any mechanism capable of fixing the end part of the resistor; the frame 3 is connected with the workbench 1 through a vertical lifting mechanism, and the vertical lifting mechanism can be any mechanism which can enable the frame 3 to be vertical; the frame 3 is provided with a clamping mechanism 4 and a driving mechanism 5 for driving the clamping mechanism 4 to rotate around a vertical shaft; the clamping mechanism 4 is positioned right above the resistor pins and comprises a rotating shaft 41 and two clamping plates 42 which are vertically parallel, and the two clamping plates 42 are used for clamping the reserved sections of the resistor pins and the winding ends; the ends of the clamping plates 42 are movably connected with the end of the rotating shaft 41, that is, the two clamping plates 42 can relatively approach or depart from each other along the radial direction of the rotating shaft 41; an opening and closing mechanism 6 for opening and clamping the lower end of the two clamping plates 42 is arranged between the two clamping plates 42, namely when clamping is needed, the opening and closing mechanism 6 enables the two clamping plates 42 to be relatively close to and clamped, and when loosening is needed, the opening and closing mechanism 6 enables the two clamping plates 42 to be relatively far away from and loosened; the clamping mechanism 4 uses the axis of the rotating shaft 41 as a rotating shaft, and the rotating shaft 41 and the resistor pin are coaxially arranged.

A welding gun 7 is arranged above the workbench 1, preferably a laser welding gun, the welding is rapid, the welding spot quality is good, and the welding head of the welding gun 7 points to the welding position of the stitch; the welding gun 7 is mounted on the movable end of the transverse moving mechanism 8, wherein the transverse moving mechanism 8 is used for enabling the welding gun 7 to approach or depart from the welding point in the horizontal direction, and the fixed end of the transverse moving mechanism 8 can be fixed through a support rod (not shown in the figure).

When the device works, an operator operates the rack 3 to move downwards, the clamping plate 42 clamps the resistor pins and the reserved sections of the winding ends by controlling the opening and closing mechanism 6, then the driving mechanism 5 is controlled to drive the clamping mechanism 4 to rotate around the axis of the rotating shaft 41, at the moment, understandably, the reserved sections of the winding ends are uniformly and tightly wound on the outer circumferences of the pins and are usually wound for 2-4 circles, so that the contact positions of the windings and the pins are increased, the condition of poor contact is solved by multi-point contact, and then the reserved sections wound at the roots of the pins are spot-welded by holding a welding gun; move welder 7 on the other hand and make its head quick and stitch welding department contact then weld, can find the accurate location to the welding point fast, the product uniformity that the welding came out is better, after the welding was accomplished, manual moving away welder 7 can, easy operation, convenient to use.

Preferably, in the embodiment of the present invention, two retaining edges 43 are oppositely disposed on the opposite inner walls of the two retaining plates 42, and the two retaining edges 43 and the two retaining plates 42 enclose a retaining space.

Specifically, when the holding plate 42 clamps the reserved section of the resistor pin and the winding end, the reserved section of the resistor pin and the winding end is located in the holding space, and the rib 43 prevents the reserved section of the winding end from falling off from the two holding plates 42 when the holding mechanism 4 rotates.

Preferably, in the embodiment of the present invention, two of the holding plates 42 are provided with a spike protrusion 44 on the opposite inner wall.

In particular, the barbed protrusions 44 resemble a knife edge and function to at least partially scrape off the insulation layer on the reserved section of the winding end, so as not to affect the subsequent welding effect.

Preferably, in the embodiment of the present invention, the pressing mechanism 2 includes a sinking platform 21 disposed on the working platform 1, and at least one horizontally movable top block 22 located on an inner wall of the sinking platform 21, preferably, the top block 22 is uniformly disposed on the inner wall of the sinking platform 21 around an outer circle of the bottom of the resistor, and a plurality of springs for urging the top block 22 toward the center are disposed in the sinking platform 21, and the end of the resistor is quickly pressed by the end of the top block 22. The loading and unloading are convenient.

Preferably, in the embodiment of the present invention, the driving mechanism 5 includes a step motor 51 and a gear assembly 52, and an output end of the step motor 51 is in transmission connection with an end of the rotating shaft 41 through the gear assembly 52.

Specifically, the stepping motor 51 drives the rotating shaft 41 to rotate through the gear assembly 52, so as to drive the clamping mechanism 4 to rotate several turns around the pin axis, thereby ensuring accurate rotation turns.

Preferably, in the embodiment of the present invention, the vertical lifting mechanism includes a guide assembly 11 and a jacking mechanism 12, wherein the jacking mechanism 12 is preferably a jacking spring, the lower end of the guide assembly 11 is connected with the workbench 1, and the upper end of the guide assembly is connected with the frame 3, so as to guide the vertical movement of the frame 3; the jacking mechanism 12 is arranged between the workbench 1 and the frame 3 and used for enabling the frame 3 to move upwards and reset. After the clamping and welding are completed each time, the rack 3 can automatically return to the highest position when the jacking mechanism 12 acts upwards, and the next resistor loading is not hindered.

Preferably, in the embodiment of the present invention, a horizontal sliding rail 45 is disposed at an end of the rotating shaft 41, and the two clamping plates 42 are connected with the horizontal sliding rail 45 in a sliding fit manner; the opening and closing mechanism 6 comprises an electromagnet 61 and an elastic part 62, the elastic part 62 is preferably a spring, the electromagnet 61 is arranged on one clamping plate 42, and the other clamping plate 42 is correspondingly provided with a suction part; the elastic member 62 is disposed between the two clamping plates 42, i.e. two ends of the elastic member are in tight contact with the clamping plates 42 for spreading the elastic member. In the initial state, the two clamping plates 42 are kept away under the action of the elastic component 62, that is, the two clamping plates 42 are spread, so that the reserved sections of the resistor pins and the winding ends are conveniently arranged in the inner space of the resistor pins and the winding ends, and when clamping is needed, the electromagnet 61 is electrified, so that the two clamping plates 42 are attracted and closed, and the reserved sections of the resistor pins and the winding ends are clamped.

Preferably, in the embodiment of the present invention, the lateral moving mechanism 8 includes a horizontal guide rail 81 fixedly disposed, a sliding seat 82 disposed on the horizontal guide rail 81, and an expansion rod 83, preferably a screw rod, vertically disposed on the sliding seat 82, and the welding gun 7 is mounted on the expansion rod 83.

Specifically, the horizontal guide rail 81 can be fixed above the workbench 1 through a support rod, and the sliding seat 82 moves along the horizontal guide rail 81 and is close to or far away from the welding position of the resistor; and the telescopic rod 83 is used to adjust the vertical height of the welding gun 7.

Preferably, in the embodiment of the present invention, the upper end of the telescopic rod 83 is hinged to a mounting seat 84 capable of rotating around a horizontal shaft, and a C-shaped bayonet 85 for clamping the welding gun 7 is arranged on the mounting seat 84.

Specifically, the mount 84 is rotatable about a horizontal axis to adjust the optimum angle at which the welding gun 7 is aligned with the weld, and the C-shaped bayonet 85 is used to quickly mount and dismount a bad welding gun 7.

It is noted that, herein, relational terms such as first and second, and the like may be 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 description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

Claims

1. A high-reliability winding resistor production device is characterized by comprising a workbench (1), a pressing mechanism (2) arranged on the workbench (1) and used for rapidly fixing the end part of a resistor, and a rack (3) connected with the workbench (1) through a vertical lifting mechanism;

the rack (3) is provided with a clamping mechanism (4) and a driving mechanism (5) for driving the clamping mechanism (4) to rotate around a vertical shaft;

the clamping mechanism (4) comprises a rotating shaft (41) and two clamping plates (42) which are vertically parallel, the end parts of the clamping plates (42) are movably connected with the end part of the rotating shaft (41), and an opening and closing mechanism (6) for opening and clamping the lower ends of the two clamping plates (42) is arranged between the two clamping plates;

and a welding gun (7) is further arranged above the workbench (1), and the welding gun (7) is installed on the movable end of the transverse moving mechanism (8).

2. The production equipment for the high-reliability winding resistor is characterized in that the opposite inner walls of the two clamping plates (42) are oppositely provided with flanges (43), and the two flanges (43) and the two clamping plates (42) enclose a clamping space.

3. A high reliability winding resistance production device according to claim 1 or 2, characterized in that the opposite inner walls of the two clamping plates (42) are provided with spike protrusions (44).

4. The high-reliability winding resistor production equipment according to claim 1, wherein the pressing mechanism (2) comprises a sinking platform (21) arranged on the workbench (1) and at least one horizontally movable top block (22) positioned on the inner wall of the sinking platform (21), and the end part of the resistor is pressed through the end part of the top block (22).

5. The high-reliability winding resistor production equipment according to claim 1, wherein the driving mechanism (5) comprises a stepping motor (51) and a gear assembly (52), and the output end of the stepping motor (51) is in transmission connection with the end part of the rotating shaft (41) through the gear assembly (52).

6. The high-reliability winding resistor production equipment according to claim 1, wherein the vertical lifting mechanism comprises a guide assembly (11) and a jacking mechanism (12), the lower end of the guide assembly (11) is connected with the workbench (1), and the upper end of the guide assembly is connected with the frame (3); the jacking mechanism (12) is arranged between the workbench (1) and the rack (3) and used for enabling the rack (3) to move upwards and reset.

7. The production equipment for the high-reliability winding resistor is characterized in that a horizontal sliding rail (45) is arranged at the end part of the rotating shaft (41), and the two clamping plates (42) are matched and slidably connected with the horizontal sliding rail (45); the opening and closing mechanism (6) comprises an electromagnet (61) and an elastic component (62), the electromagnet (61) is arranged on one clamping plate (42), and the other clamping plate (42) is correspondingly provided with a suction part; the elastic component (62) is arranged between the two clamping plates (42) and is used for expanding the clamping plates.

8. The high-reliability winding resistor production equipment according to claim 1, wherein the transverse moving mechanism (8) comprises a horizontal guide rail (81) fixedly arranged, a sliding seat (82) arranged on the horizontal guide rail (81), and a telescopic rod (83) vertically arranged on the sliding seat (82), and the welding gun (7) is installed on the telescopic rod (83).

9. The high-reliability winding resistor production equipment according to claim 8, wherein the upper end of the telescopic rod (83) is hinged to a mounting seat (84) capable of rotating around a horizontal shaft, and a C-shaped bayonet (85) for clamping the welding gun (7) is arranged on the mounting seat (84).