CN112809279B

CN112809279B - Leak-proof device for multiple nuts of welding fixture

Info

Publication number: CN112809279B
Application number: CN202011619758.5A
Authority: CN
Inventors: 秦承华; 杨黄锐; 熊玮; 张颖
Original assignee: Dongshi Wuhan Industrial Co ltd
Current assignee: Dongshi Wuhan Industrial Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2022-12-27
Anticipated expiration: 2040-12-30
Also published as: CN112809279A

Abstract

The invention discloses a leakage-proof device for multiple nuts of a welding fixture, which comprises a press base, wherein a machine plate is fixedly arranged on the upper end surface of the press base, a nut leakage-proof unit is arranged on the upper end surface of the machine plate, and a button control box and a channel welding fixture assembly unit are respectively arranged on two sides of the nut leakage-proof unit on the upper end surface of the machine plate. According to the invention, nuts are arranged in the nut holes of the nut plate, then the nut plate is assembled on the nut leakage prevention unit, then the two third clamping cylinders are started, so that the first elastic clamping pieces on the two third clamping cylinders are clamped into the clamping holes on the nut plate, and the nut plate is fixed.

Description

Leak protection device for multiple nuts of welding fixture

Technical Field

The invention belongs to the technical field of automobile parts, and particularly relates to a multi-nut leakage-proof device of a welding fixture.

Background

At present, in the manufacturing process of automobile parts, the production beat is fast, the yield is high, and the control of the process quality in the production process plays an important role in production; in the production operation process, the first-line production staff difficultly keeps the consistency of the heights by attention, so that the wrong operation can cause the defects of batch products such as missing welding, wrong welding and the like of nuts on parts; some of the parts of the channel assembly in the automobile are welded with nut plates with nuts dense, the parts are small, the nuts are dense, the detection cannot be carried out after welding, the space on a welding fixture is narrow, and a good leakage-proof function is difficult to design.

Disclosure of Invention

The invention aims to: the anti-leakage device aims to solve the problems that some nut plates welded with dense nuts are arranged in the parts of the middle channel assembly of the automobile, the parts are small, the nuts are dense, the detection cannot be carried out after welding, the space on a welding clamp is narrow, and a good anti-leakage function is difficult to design.

The technical scheme adopted by the invention is as follows: a leakage-proof device for multiple nuts of a welding fixture comprises a press base, wherein a machine plate is fixedly mounted on the upper end face of the press base, a nut leakage-proof unit is arranged on the upper end face of the machine plate, a button control box and a channel welding fixture assembly unit are respectively arranged on two sides of the nut leakage-proof unit on the upper end face of the machine plate, the channel welding fixture assembly unit comprises a third clamping cylinder and a fixture, the third clamping cylinder and the nut leakage-proof unit are electrically connected with the button control box, an alarm lamp is electrically connected on the button control box, a channel welding assembly part is arranged on one side of the button control box, the nut leakage-proof unit and the channel welding fixture assembly unit on the upper end face of the machine plate, the channel welding assembly part comprises a channel body and a nut plate, a nut plate mounting groove is formed in the channel body, and the nut plate is arranged in the nut plate mounting groove, the nut plate is sequentially provided with three nut holes, the three nut holes are provided with nuts, the nut leakage prevention unit comprises a leakage prevention unit body and an installation support, the installation support is fixedly installed on the leakage prevention unit body through bolts, the leakage prevention unit body comprises a supporting block, three capacitance sensors and a third clamping cylinder, the four supporting blocks are welded at the four corners of the upper end face of the installation support respectively, the three capacitance sensors are correspondingly installed on the supporting block in sequence, the three capacitance sensors are all electrically connected with the button control box, a fixed seat is fixedly installed between the four supporting blocks on the upper end face of the installation support, the fixed seat is sequentially provided with two first clamping cylinders, the first clamping cylinders are provided with elastic clamping pieces simultaneously, and the first clamping cylinders are electrically connected with the button control box, and a PLC electric cabinet is arranged on the press base, and meanwhile, the button control box is electrically connected with the PLC electric cabinet.

In a preferred embodiment, the channel joint welding assembly part further comprises two second clamping cylinders, two clamping pressure heads and an assembly small part, wherein the assembly small part is provided with a plurality of clamping pressure heads and located on two sides of the channel body respectively, the two second clamping cylinders and the clamping pressure heads are arranged on the channel body, and the two second clamping cylinders are electrically connected with the button control box.

In a preferred embodiment, the four corners of the press frame are fixedly provided with mounting plates, and the mounting plates are provided with bolt holes.

In a preferred embodiment, the positions of the three capacitive sensors correspond to the positions of the three nuts, respectively, when the nut plate is placed on the nut leakage preventing unit.

In a preferred embodiment, the nut plate is provided with two clamping holes, the two clamping holes have the same diameter, and the clamping holes correspond to the positions of the elastic clamping pieces when the nut plate is placed on the nut leakage preventing unit.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

according to the invention, the nut leakage-proof unit is arranged on the press base and comprises a leakage-proof unit body, an installation support, a supporting block, a capacitance sensor, third clamping cylinders, a fixed seat and third clamping cylinders, so that nuts are installed in nut holes of the nut plate, then the nut plate is assembled on the nut leakage-proof unit, two third clamping cylinders are started, first elastic clamping pieces on the two third clamping cylinders are clamped into clamping holes in the nut plate, and the nut plate is fixed.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged connection structure of the leakage-proof unit of the nut shown in FIG. 1 according to the present invention;

FIG. 3 is a schematic view of a partially enlarged connection structure of the components of the channel weld assembly of FIG. 1 according to the present invention;

FIG. 4 is an enlarged structural view of the nut plate of the channel weld assembly component of FIG. 1 in accordance with the present invention;

fig. 5 is a schematic block diagram of the circuit of the present invention.

The labels in the figure are: 1. a machine plate; 2. a nut leakage prevention unit; 21. a leakage-proof unit body; 22. mounting a support; 23. a support block; 24. a capacitive sensor; 25. a first clamping cylinder; 26. a fixed seat; 3. a button control box; 4. channel joint welding assembly parts; 41. a channel body; 42. a nut plate; 43. a nut; 44. A second clamping cylinder; 45. clamping the pressure head; 46. assembling small parts; 47. clamping holes; 5. a press base; 6. a channel weld fixture assembly unit; 7. an alarm light; 8. PLC electric cabinet.

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 embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. 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.

Referring to fig. 1-5, a leakage-proof device for welding fixture multi-nut comprises a press base 5, a machine plate 1 is fixedly installed on the upper end surface of the press base 5, a nut leakage-proof unit 2 is arranged on the upper end surface of the machine plate 1, a button control box 3 and a channel welding fixture assembly unit 6 are respectively arranged on the upper end surface of the machine plate 1 and positioned on two sides of the nut leakage-proof unit 2, the channel welding fixture assembly unit 6 comprises a third clamping cylinder and a fixture, the third clamping cylinder and the nut leakage-proof unit 2 are electrically connected with the button control box 3, an alarm lamp 7 is electrically connected on the button control box 3, a channel welding assembly part 4 is arranged on one side of the button control box 3, the nut leakage-proof unit 2 and the channel welding fixture assembly unit 6 on the upper end surface of the machine plate 1, the channel welding assembly part 4 comprises a channel body 41 and a nut plate 42, a nut plate installation groove is arranged on the channel body 41, meanwhile, a nut plate 42 is arranged in a nut plate mounting groove, three nut holes are sequentially arranged on the nut plate 42, nuts 43 are arranged in the three nut holes, a nut leakage prevention unit 2 comprises a leakage prevention unit body 21 and a mounting support 22, the mounting support 22 is fixedly mounted on the leakage prevention unit body 21 through bolts, the leakage prevention unit body 21 comprises support blocks 23 and capacitance sensors 24, four support blocks 23 are arranged and are welded at four corners of the upper end face of the mounting support 22 respectively, three capacitance sensors 24 are arranged and are sequentially and correspondingly arranged on the support blocks 23, the three capacitance sensors 24 are electrically connected with a button control box 3, a fixing seat 26 is fixedly mounted on the upper end face of the mounting support 22 between the four support blocks 23, two first clamping cylinders 25 are sequentially arranged on the fixing seat 26, and elastic clamping pieces are arranged on the first clamping cylinders 25, the first clamping cylinder 25 is electrically connected with the button control box 3 (the first clamping cylinder 25 and the elastic clamping piece are arranged for clamping the nut plate 42), the press machine base 5 is provided with a PLC electric cabinet 8, and the button control box 3 is electrically connected with the PLC electric cabinet 8.

Wherein, passageway closes and welds assembly part 4 still includes two second die clamping cylinder 44, two press from both sides tight pressure head 45, equipment accessories 46, and equipment accessories 46 is equipped with a plurality of, is located the both sides of passageway body 41 respectively simultaneously, and two second die clamping cylinder 44, press from both sides tight pressure head 45 and all establish on passageway body 41, and two second die clamping cylinder 44 all are connected with button control box 3 simultaneously.

Wherein, the equal fixed mounting in four corners department of press frame 5 has the assembly plate, all has set the bolt hole on the assembly plate simultaneously, sets up the bolt hole and is used for the installation and dismantle press frame 5.

When the nut plate 42 is placed on the nut leakage prevention unit 2, the positions of the three capacitive sensors 24 correspond to the positions of the three nuts 43 respectively, so that the three nuts 43 can be detected respectively, and therefore, the leakage prevention detection of the nuts 43 can be truly realized, and the product quality can be controlled.

The nut plate 42 is provided with two clamping holes 47, the two clamping holes 47 have the same aperture, and the clamping holes 47 correspond to the elastic clamping pieces when the nut plate 42 is placed on the nut leakage-proof unit 2, so that the nut plate 42 is convenient to clamp.

Principle of operation

The first step is as follows: firstly, the whole press base 5 and parts on the press base 5 are installed on a designated device, then all clamps on the press base 5 are in an initial state before starting, all channel weld clamp assembly units 6 are in an open state, then nuts 43 are installed in nut holes of nut plates 42, and then the nut plates 42 are assembled on the nut leakage prevention units 2 and fall on four supporting blocks 23;

the second step is that: two first clamping cylinders 25 are started, so that first elastic clamping pieces on the two first clamping cylinders 25 are clamped into clamping holes 47 on a nut plate 42, the nut plate 42 is fixed, at the moment, three capacitance sensors 24 are used for detecting, when a nut 43 in a certain nut hole is in shortage, the capacitance sensors 24 are induced, and an alarm lamp 7 is turned on to give an alarm for indication, so that the leakage prevention detection of one hundred percent of nuts 43 can be really realized, and the product quality is further controlled:

the third step: and taking down the nut plate 42, clamping the nut plate on a clamp in the channel welding clamp assembly unit 6, pushing and fixing the nut plate by using a third clamping cylinder, starting the nut plate in a reserved mode until the robot in the press performs welding, and opening the clamp in the channel welding clamp assembly unit 6 by using the third clamping cylinder after the welding is finished so as to take out the workpiece.

It should be noted that, in this document, relational terms such as first and second, and the like 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 phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like 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

1. The utility model provides a leak protection device of many nuts of welding jig, includes press frame (5), its characterized in that: the upper end face of the press machine base (5) is fixedly provided with a machine plate (1), the upper end face of the machine plate (1) is provided with a nut leakage-proof unit (2), the upper end face of the machine plate (1) is respectively provided with a button control box (3) and a channel welding clamp assembly unit (6) on two sides of the nut leakage-proof unit (2), the channel welding clamp assembly unit (6) comprises a third clamping cylinder and a clamp, the third clamping cylinder and the nut leakage-proof unit (2) are electrically connected with the button control box (3), meanwhile, the button control box (3) is electrically connected with an alarm lamp (7), the upper end face of the machine plate (1) is provided with a channel welding assembly part (4) on one side of the button control box (3), the nut leakage-proof unit (2) and the channel welding clamp assembly unit (6), the channel welding assembly part (4) comprises a channel body (41) and a nut plate (42), the channel body (41) is provided with a nut plate mounting groove, the nut plate (42) is arranged in the nut plate mounting groove, the nut plate (42) is sequentially provided with three nut leakage-proof unit mounting holes (22) and the nut unit (22) is arranged on the machine body, the leakage-proof unit body (21) comprises four supporting blocks (23) and three capacitance sensors (24), the four supporting blocks (23) are welded at four corners of the upper end face of the mounting support (22) respectively, the three capacitance sensors (24) are arranged on the supporting blocks (23) in sequence and correspond to each other, the three capacitance sensors (24) are electrically connected with the button control box (3), a fixed seat (26) is fixedly arranged between the four supporting blocks (23) on the upper end face of the mounting support (22), two first clamping cylinders (25) are sequentially arranged on the fixed seat (26), elastic clamping pieces are arranged on the first clamping cylinders (25), the first clamping cylinders (25) are electrically connected with the button control box (3), a PLC electric cabinet (8) is arranged on the press base (5), and the button control box (3) is electrically connected with the PLC electric cabinet (8); the channel joint welding assembly part (4) further comprises two second clamping cylinders (44), two clamping pressure heads (45) and an assembly small part (46), wherein the assembly small part (46) is provided with a plurality of parts which are respectively positioned on two sides of the channel body (41), the second clamping cylinders (44) and the clamping pressure heads (45) are arranged on the channel body (41), and the two second clamping cylinders (44) are connected with the button control box (3).

2. The leak-proof device for the multi-nut welding jig of claim 1, wherein: the equal fixed mounting in four corners department of press frame (5) has the assembly plate, all sets the bolt hole on the assembly plate simultaneously.

3. The leak-proof device for the multi-nut welding jig of claim 1, wherein: when the nut plate (42) is placed on the nut leakage preventing unit (2), the positions of the three capacitive sensors (24) correspond to the positions of the three nuts (43), respectively.

4. The leak-proof device for the multi-nut welding jig of claim 1, wherein: two clamping holes (47) are formed in the nut plate (42), the hole diameters of the two clamping holes (47) are identical, and the clamping holes (47) correspond to the positions of the elastic clamping pieces when the nut plate (42) is placed on the nut leakage-proof unit (2).