CN210360068U - Welding jig based on crossbeam assembly - Google Patents

Welding jig based on crossbeam assembly Download PDF

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Publication number
CN210360068U
CN210360068U CN201920618107.0U CN201920618107U CN210360068U CN 210360068 U CN210360068 U CN 210360068U CN 201920618107 U CN201920618107 U CN 201920618107U CN 210360068 U CN210360068 U CN 210360068U
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China
Prior art keywords
beam body
positioning
bottom plate
fixed
mounting seat
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CN201920618107.0U
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Chinese (zh)
Inventor
金山朕
刘萍萍
唐安建
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Chongqing Shanzhen Technology Development Co ltd
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Chongqing Shanzhen Technology Development Co ltd
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Abstract

The utility model belongs to the technical field of beam processing, in particular to a welding fixture based on a beam assembly, which comprises a base plate, a driving mechanism, a bottom plate positioning and clamping mechanism and a beam body positioning and clamping mechanism; the bottom plate positioning and clamping mechanisms and the beam body positioning and clamping mechanisms are respectively provided with two groups and are respectively positioned on two sides of the substrate, each group of bottom plate positioning and clamping mechanisms comprises a bottom plate positioning unit and two groups of bottom plate clamping units, and each group of beam body positioning and clamping units comprises a beam body positioning unit and a beam body clamping unit; the bottom plate clamping unit comprises a supporting bottom plate, an energy absorption box and a clamping bottom plate; the beam body positioning unit is used for positioning one side of the beam body and supporting the beam body, and the beam body clamping unit is used for positioning the other side of the beam and clamping the beam body. The welding fixture with the structure can solve the problem that the cross beam body and the energy absorption box can be dislocated or rocked in the overturning process in the prior art.

Description

Welding jig based on crossbeam assembly
Technical Field
The utility model belongs to the technical field of the crossbeam processing, especially, relate to a welding jig based on crossbeam assembly.
Background
As society develops, various vehicles are increasing, and therefore, in-vehicle accessories are also continuously improving. At present, the transverse structural part in the axle is a cross beam, so the processing and production of the cross beam structure are very important. The front cross beam comprises a cross beam body, an energy absorption box, a bottom plate, a trailer sleeve and a mounting bracket, wherein the energy absorption box and the bottom plate, the cross beam body and the trailer sleeve, the cross beam body and the energy absorption box, and the bottom plate and the mounting bracket are welded. After welding, the front cross beam needs to be inspected, repaired and coded. After the energy absorption boxes and the bottom plate are welded, the beam body and the two groups of energy absorption boxes need to be welded. In the process, the beam body and the bottom plate need to be positioned and clamped. Need overturn crossbeam body and energy-absorbing box at the welded in-process to reach all-round welded effect, but the condition that crossbeam body and energy-absorbing box can not take place to misplace or rock at the in-process of upset is hardly guaranteed to anchor clamps among the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a welding jig based on beam assembly to solve among the prior art problem that crossbeam body and energy-absorbing box can take place the dislocation or the condition of rocking at the in-process of upset.
In order to achieve the above purpose, the technical scheme of the utility model is that: the welding fixture based on the beam assembly comprises a base plate, a driving mechanism, a bottom plate positioning and clamping mechanism and a beam body positioning and clamping mechanism, wherein the bottom plate positioning and clamping mechanism and the beam body positioning and clamping mechanism are fixed on the base plate; the driving mechanism is used for driving the substrate to turn over; the bottom plate positioning and clamping mechanisms and the beam body positioning and clamping mechanisms are respectively provided with two groups and are respectively positioned on two sides of the substrate, each group of bottom plate positioning and clamping mechanisms comprises a bottom plate positioning unit and two groups of bottom plate clamping units, and each group of beam body positioning and clamping units comprises a beam body positioning unit and a beam body clamping unit; the bottom plate positioning unit comprises a first positioning pin which can penetrate through a through hole in the bottom plate, and is positioned below the bottom plate; the two groups of bottom plate clamping units are respectively positioned at two sides of the bottom plate, and each bottom plate clamping unit comprises a supporting bottom plate, an energy absorption box and a clamping bottom plate; the beam body positioning unit is used for positioning one side of the beam body and supporting the beam body, and the beam body clamping unit is used for positioning the other side of the beam and clamping the beam body.
The working principle of the technical scheme is as follows: and placing the bottom plate on the two bottom plate clamping units, starting the bottom plate positioning unit, and positioning the bottom plate by the bottom plate positioning unit. And starting the bottom plate clamping unit, and clamping and fixing the bottom plate by the bottom plate clamping unit. The beam body is placed on the energy absorption box, one side of the beam body leans against the beam body positioning unit for positioning, and the beam body positioning unit supports the beam body. And starting the beam body clamping unit, and clamping the beam body by the beam body clamping unit. Therefore, the bottom plate and the beam body are fixed and positioned, and the beam body and the energy absorption box can be welded. When other positions need to be welded, the driving mechanism is opened, the driving mechanism drives the base plate to rotate, the bottom plate positioning and clamping mechanism and the beam body positioning and clamping mechanism to rotate, and when the base plate rotates to a proper position, the driving mechanism is closed, and the corresponding position is welded.
The beneficial effects of this technical scheme lie in: this scheme is fixed a position and centre gripping to bottom plate and crossbeam body respectively, makes the relative position of the two more accurate to make the two also fixed more firmly. The condition that the cross beam body and the energy absorption box can be dislocated or rocked in the overturning process in the prior art can not occur.
Furthermore, the bottom plate clamping unit comprises a first mounting seat and a first swing cylinder fixed on the first mounting seat, the first swing cylinder is fixed on the base plate by the first mounting seat, a swing rod is fixed on an output shaft of the first swing cylinder, a first pressing plate is connected onto the swing rod, a first supporting column used for supporting the bottom plate is fixed on the first swing cylinder, and the first supporting column is located below the first pressing plate.
And starting the bottom plate positioning and clamping mechanism to enable the first positioning pin to be higher than the first support column, placing the bottom plate on the first support column, and enabling the first positioning pin to penetrate through the through hole in the bottom plate in the placing process, so that the bottom plate and the energy absorption box are positioned, and the bottom plate and the energy absorption box cannot rotate or move in the horizontal direction. And starting the first swing cylinder, wherein an output shaft of the first swing cylinder drives the swing rod and the first pressing plate to move until the first pressing plate is pressed on the bottom plate. Thus, the bottom plate and the energy absorption box are fixed and cannot move.
Furthermore, bottom plate positioning unit still includes the second mount pad and fixes the first telescopic cylinder on the second mount pad, and the second mount pad is fixed first telescopic cylinder on the base plate, is fixed with first slide on the telescopic link of first telescopic cylinder, is fixed with the key seat on the first slide, first locating pin is fixed on the key seat.
The first telescopic cylinder is started, and a telescopic rod of the first telescopic cylinder drives the first sliding seat, the pin seat and the first positioning pin to move, so that the first positioning pin is higher than the first supporting column. After the welding is completed, the first telescopic cylinder is started, and the telescopic rod of the first telescopic cylinder drives the first sliding seat, the pin seat and the first positioning pin to move reversely until the first positioning pin is separated from the bottom plate, so that the bottom plate can be conveniently taken out.
Furthermore, the beam body positioning unit is positioned below the beam body and comprises a third mounting seat and a second telescopic cylinder fixed on the third mounting seat, the second telescopic cylinder is fixed on the base plate by the third mounting seat, a push plate is fixed on a telescopic rod of the second telescopic cylinder, and a push rod for abutting against one side of the energy absorption box and a second support column for supporting the beam body are fixed on the push plate; the second support column is perpendicular to the telescopic direction of the second telescopic cylinder, the ejector rod is parallel to the telescopic direction of the second telescopic cylinder, and a first stop block used for positioning one side of the beam body is fixed on the third mounting seat.
Since the third mounting seat is fixed on the substrate, the position of the first block is not moved, so that the first block can be used as a reference point for positioning the beam body. The beam body is placed on the crash box with one side of the beam body resting against the first stop. And starting the second telescopic cylinder, wherein the telescopic rod of the second telescopic cylinder drives the push plate and the second support column to move, and the top rod just offsets one side of the energy absorption box when the top of the second support column is contacted with the beam body because the second support column is fixed in height and the beam body is arched. This scheme can make support and location to the energy-absorbing box, prevents that the whole deformations that cause the energy-absorbing box of pressing of weight of crossbeam body on the energy-absorbing box. The ejector rod can also support the energy absorption box to a certain degree.
Further, the beam body clamping unit comprises a first slide rail fixed on the substrate and a fourth mounting seat connected to the first slide rail in a sliding manner, a third telescopic cylinder is fixed on the substrate, a telescopic rod of the third telescopic cylinder is connected with the fourth mounting seat, a second stop block used for positioning the other side of the beam body is fixed on the fourth mounting seat, a fifth mounting seat is fixed on the fourth mounting seat, a fourth telescopic cylinder is fixed on the fifth mounting seat, a telescopic rod of the fourth telescopic cylinder is connected with a first connecting plate, and a second compression plate and a second positioning pin capable of penetrating through a through hole in the beam body are fixed on the first connecting plate; and a first connecting rod is further fixed on the fifth mounting seat, a handle is rotatably connected onto the first connecting rod, a second connecting rod is rotatably connected onto the handle, and a pressing block used for pressing the first connecting plate is rotatably connected onto the second connecting rod.
And starting a third telescopic cylinder, wherein a telescopic rod of the third telescopic cylinder drives a fourth mounting seat to move towards the direction close to the beam body until a second stop block on the fourth mounting seat contacts and is pressed against one side of the beam body, and the two sides of the beam body are clamped and positioned by the first stop block and the second stop block. And starting a fourth telescopic cylinder, wherein a telescopic rod of the fourth telescopic cylinder drives the first connecting plate, the second pressing plate and the second positioning pin to move downwards until the second pressing plate is pressed on the upper surface of the beam body. In this process, the second positioning pin passes through the through hole of the beam body, so that the overall position of the beam body is positioned. The handle is rotated to drive the second connecting rod to rotate, so that the pressing block is pressed on the first connecting plate. If the handle rotates to be horizontal, the pressing block can be pressed on the first connecting plate, which indicates that the second pressing plate presses the beam body tightly; if the handle does not rotate to the horizontal position, the pressing block is in contact with the first connecting plate, and the second pressing plate does not press the beam body at the moment, so that the fourth telescopic cylinder needs to be started to adjust the position of the second pressing plate. Simultaneously, the briquetting is lived first connecting plate pressure, can also increase the degree that compresses tightly of second pressure strip, prevents that the second pressure strip from taking place not hard up.
Furthermore, a vertical second sliding rail is arranged on the fifth mounting seat, a second sliding seat is connected in the second sliding rail in a vertical sliding mode, and the first connecting plate is fixed on the second sliding seat. The second slide provides the support for first link plate, places on the whole direct action of effort of first link plate on the telescopic link of fourth telescopic cylinder. The second slide rail provides a guide for sliding of the second carriage.
Furthermore, a detection switch is fixed on the first support column, and a protective sleeve is sleeved on the detection switch. The detection switch is used for detecting whether the part on the first mounting seat is in a neglected loading condition or not, and if the part is in the neglected loading condition, a quality accident is likely to occur.
Furthermore, be equipped with vertical third slide rail on the first mount pad, first slide sliding connection is in the third slide rail. The third slide rail provides a guide for the sliding of the first slide.
Furthermore, a limiting block for limiting the second sliding seat to move is arranged on the fifth mounting seat. The limiting block can limit the limit distance of the second sliding seat in the direction, and the telescopic rod of the fourth telescopic cylinder is prevented from driving the second pressing plate to excessively move, so that the pressure loss of the beam body is caused.
The device comprises a base plate, a crossbeam body clamping unit, a pressure valve and a supporting block, wherein the crossbeam body clamping unit is positioned below the crossbeam body and between two groups of bottom plate positioning and clamping mechanisms; the air inlet end of the air pump is communicated with a pipeline, and the port of the pipeline is close to the position where the beam body and the energy absorption box are welded; the first telescopic rod and the second telescopic rod are both provided with air outlet holes, the air outlet quantity of the air outlet holes in unit time is less than that of the air pump in unit time, and the extending direction of the second telescopic rod faces the direction of an operator; the shortest contraction position of the first telescopic rod and the second telescopic rod just corresponds to the beam body.
The supporting block supports the middle of the beam body, and after welding is completed, the first swing cylinder is driven to enable the swing rod and the first pressing plate to swing reversely, and the first pressing plate does not press the bottom plate any more. The handle is rotated reversely, so that the pressing block is far away from the first connecting plate; driving a fourth telescopic cylinder to enable the first connecting plate, the second pressing plate and the second positioning pin to move reversely; driving a third telescopic cylinder to enable the second stop block to move reversely; and driving a second telescopic cylinder to enable the ejector rod and the second supporting column to move reversely. The air pump is started, the air outlet end of the air pump pumps air into the first telescopic rod, the first telescopic rod extends, when the first telescopic rod cannot extend any more, the pressure in the first telescopic rod is increased, the pressure valve is opened, the air in the first telescopic rod can enter the second telescopic rod, and the second telescopic rod also can extend. The extension of the first telescopic rod can drive the second telescopic rod, the supporting block and the beam body to move upwards, and the extension of the second telescopic rod can drive the supporting block and the beam body to move towards the direction of an operator. The operator of being convenient for like this takes away and gets, and the end of breathing in of air pump is breathed in simultaneously, can accelerate the air flow of crossbeam body and energy-absorbing box splice for refrigerated efficiency. When the cross beam body is taken away, the air pump is closed, the air outlet is exhausted, and the first telescopic rod and the second telescopic rod are contracted to the initial state.
Drawings
FIG. 1 is a schematic view of the general structure of a welding fixture based on a beam assembly of the present invention;
FIG. 2 is a schematic structural view of the substrate clamping unit of FIG. 1;
FIG. 3 is a schematic structural diagram of a base plate positioning unit in FIG. 1;
fig. 4, 5 and 6 are schematic structural views of the beam body clamping unit in fig. 1;
FIG. 7 is a schematic structural view of a positioning unit of the beam body in FIG. 1;
fig. 8 is a schematic structural view of the beam body transfer unit in fig. 1.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a rotary linking seat 1, a substrate 2, a bottom plate positioning and clamping mechanism 3, a beam body positioning and clamping mechanism 4, a first swing cylinder 5, a swing rod 6, a first pressing plate 7, a first supporting column 8, a protective sleeve 9, a detection switch 10, a first dust guard 11, a first telescopic cylinder 12, a second mounting seat 13, a first sliding seat 14, a pin seat 15, a first positioning pin 16, a third sliding rail 17, a third telescopic cylinder 18, a fourth mounting seat 19, a second stop block 20, a second sliding rail 21, a second pressing plate 22, a handle 23, a pressing block 24, a first connecting plate 25, a second connecting rod 26, a first connecting rod 27, a stop block 28, a fourth telescopic cylinder 29, a fifth mounting seat 30, a third mounting seat 31, a first stop block 32, a top rod 33, a second supporting column 34, a second telescopic cylinder 35, a second dust guard 36, a first sliding rail 37, a second positioning pin 38, a second telescopic rod 39, a first telescopic rod 40, A second telescopic rod 41 and a supporting block 42.
The examples are substantially as shown in figures 1 to 8 of the accompanying drawings: welding jig based on crossbeam assembly, including base plate 2, actuating mechanism, fix bottom plate location fixture 3 and crossbeam body location fixture 4 on base plate 2, the left and right sides of base plate 2 is fixed with swivel joint seat 1, and actuating mechanism is fixed and can drive base plate 2 with swivel joint seat 1 and rotate, and in this embodiment, actuating mechanism adopts the cylinder. The bottom plate positioning and clamping mechanisms 3 are provided with two groups and are respectively positioned at the left side and the right side of the substrate 2. Every group bottom plate location fixture 3 includes bottom plate positioning element and is located two sets of bottom plate clamping element of bottom plate both sides, bottom plate positioning element is located the below of bottom plate, as shown in fig. 3, bottom plate positioning element includes second mount pad 13 and fixes first telescopic cylinder 12 on second mount pad 13, second mount pad 13 fixes first telescopic cylinder 12 on base plate 2, be fixed with first slide 14 on first telescopic cylinder's 12 the telescopic link, be fixed with key seat 15 on first slide 14, be fixed with the first locating pin 16 that can pass the through-hole on the bottom plate on the key seat 15. The second mounting seat 13 is provided with a vertical third slide rail 17, and the first slide 14 is slidably connected in the third slide rail 17.
As shown in fig. 2, each group of bottom plate clamping units includes a first mounting seat and a first swing cylinder 5 fixed on the first mounting seat, the first swing cylinder 5 is fixed on the substrate 2 by the first mounting seat, an oscillating bar 6 is fixed on an output shaft of the first swing cylinder 5, a first pressing plate 7 is connected on the oscillating bar 6, a first supporting column 8 for supporting the bottom plate is fixed on the first swing cylinder 5, the first supporting column 8 is located below the first pressing plate 7, a detection switch 10 is fixed on the first supporting column 8, and a protective sleeve 9 is sleeved on the detection switch 10. The output shaft of the first swing cylinder 5 is also provided with a first dust guard 11.
The beam body positioning and clamping mechanisms 4 are provided with two groups and are respectively positioned at the left side and the right side of the base plate 2, each group of beam body positioning and clamping units comprises a beam body positioning unit and a beam body clamping unit, the beam body positioning unit is positioned below the beam body, as shown in fig. 7, the beam body positioning unit comprises a third mounting seat 31 and a second telescopic cylinder 35 fixed on the third mounting seat 31, the third mounting seat 31 fixes the second telescopic cylinder 35 on the base plate 2, a push plate is fixed on a telescopic rod of the second telescopic cylinder 35, and a mandril 33 for propping against one side of the energy absorption box and a second support column 34 for supporting the beam body are fixed on the push plate; the second supporting column 34 is perpendicular to the extending and retracting direction of the second extending and retracting cylinder 35, the ejector rod 33 is parallel to the extending and retracting direction of the second extending and retracting cylinder 35, and a first stop block 32 for positioning one side of the beam body is fixed on the third mounting seat 31. A second dust guard 36 for preventing dust from falling onto the second telescopic cylinder 35 is fixed to the third mounting seat 31.
As shown in fig. 4, 5, and 6, the beam body clamping unit includes a first slide rail 37 fixed on the substrate 2 and a fourth mounting seat 19 slidably connected to the first slide rail 37, a third telescopic cylinder 18 is fixed on the substrate 2, a telescopic rod of the third telescopic cylinder 18 is connected to the fourth mounting seat 19, a second stopper 20 for positioning the other side of the beam body is fixed on the fourth mounting seat 19, a fifth mounting seat 30 is fixed on the fourth mounting seat 19, a fourth telescopic cylinder 29 is fixed on the fifth mounting seat 30, a first connecting plate 25 is connected to a telescopic rod of the fourth telescopic cylinder 29, and a second pressing plate 22 and a second positioning pin 38 capable of passing through a through hole on the beam body are fixed on the first connecting plate 25. The fifth installation seat 30 is provided with a vertical second slide rail 21, a second slide seat 39 is vertically connected in the second slide rail 21 in a sliding manner, and the first connecting plate 25 is fixed on the second slide seat 39. A first connecting rod 27 is further fixed on the fifth mounting seat 30, a handle 23 is rotatably connected to the first connecting rod 27, a second connecting rod 26 is rotatably connected to the handle 23, and a pressing block 24 for pressing the first connecting plate 25 is rotatably connected to the second connecting rod 26. The fifth mounting seat 30 is provided with a limiting block 28 for limiting the movement of the second sliding seat 39, the limiting block 28 can limit the limit distance of the second sliding seat 39 in the direction, and the telescopic rod of the fourth telescopic cylinder 29 is prevented from driving the second pressing plate 22 to excessively move, so that the pressure loss to the beam body is avoided.
The base plate 2 is further provided with a crossbeam body transfer unit, the crossbeam body clamping unit is located below the crossbeam body and between the two groups of bottom plate positioning and clamping mechanisms 3, the crossbeam body transfer unit comprises an air pump, a vertical first telescopic rod 40, a horizontal second telescopic rod 41 and a supporting block 42 for supporting the crossbeam body, the air pump is fixed on the base plate 2, the first telescopic rod 40 and the second telescopic rod 41 are both hollow, one end of the first telescopic rod 40 is communicated with an air outlet of the air pump, the other end of the first telescopic rod is communicated with the second telescopic rod 41, a pressure valve is arranged at the communication position, and the supporting block 42 is fixed on the second telescopic rod 41; the air inlet end of the air pump is communicated with a pipeline, and the port of the pipeline is close to the position where the beam body and the energy absorption box are welded; the first telescopic rod 40 and the second telescopic rod 41 are both provided with air outlet holes, the air outlet quantity of the air outlet holes in unit time is less than that of the air pump in unit time, and the extending direction of the second telescopic rod 41 faces the direction of an operator; the shortest contraction position of the first expansion link 40 and the second expansion link 41 just corresponds to the beam body. The top of the supporting block 42 is a protrusion matching with the beam body.
The specific implementation process is as follows:
starting the first telescopic cylinder 12, the telescopic rod of the first telescopic cylinder 12 drives the first sliding seat 14, the pin seat 15 and the first positioning pin 16 to move, so that the first positioning pin 16 is higher than the first supporting column 8, the bottom plate is placed on the first supporting column 8, and in the placing process, the first positioning pin 16 penetrates through the through hole in the bottom plate, so that the bottom plate and the energy absorption box are positioned, and the bottom plate and the energy absorption box cannot rotate or move in the horizontal direction. And starting the first swing cylinder 5, wherein an output shaft of the first swing cylinder 5 drives the swing rod 6 and the first pressing plate 7 to move until the first pressing plate 7 presses on the bottom plate. Thus, the bottom plate and the energy absorption box are fixed and cannot move.
Since the third mounting seat 31 is fixed to the base plate 2, the first stopper 32 is not displaced, and the first stopper 32 can serve as a reference point for positioning the beam body. The beam body is placed over the crash box with one side of the beam body resting against the first stop 32. Meanwhile, the beam body may contact the supporting block 42, and the supporting block 42 supports the beam body.
And starting the second telescopic cylinder 35, wherein the telescopic rod of the second telescopic cylinder 35 drives the ejector rod 33 and the second support column 34 to move, and because the second support column 34 has a certain height and the beam body is arched, when the top of the second support column 34 is in contact with the beam body, the ejector rod 33 just abuts against one side of the energy absorption box. The second support pillar 34 can prevent the energy absorption box from being deformed due to the fact that the weight of the beam body is completely pressed on the energy absorption box, and the ejector rod 33 can also support the energy absorption box to a certain degree.
And starting the third telescopic cylinder 18, wherein a telescopic rod of the third telescopic cylinder 18 drives the fourth mounting seat 19 to move towards the direction close to the beam body until the second stopper 20 on the fourth mounting seat 19 contacts and compresses one side of the beam body, and the two sides of the beam body are clamped and positioned by the first stopper 32 and the second stopper 20. And starting the fourth telescopic cylinder 29, wherein the telescopic rod of the fourth telescopic cylinder 29 drives the first connecting plate 25, the second pressing plate 22 and the second positioning pin 38 to move downwards until the second pressing plate 22 presses the upper surface of the beam body. In this process, the second positioning pin 38 passes through the through hole of the cross beam body, so that the overall position of the cross beam body is positioned. The handle 23 is rotated, and the handle 23 drives the second connecting rod 26 to rotate, so that the pressing block 24 is pressed on the first connecting plate 25. If the handle 23 rotates to the horizontal position, the pressing block 24 can press the first connecting plate 25, which indicates that the second pressing plate 22 presses the beam body tightly; if the handle 23 is not rotated to the horizontal position, the pressing block 24 is already in contact with the first connecting plate 25, which indicates that the beam body is not pressed by the second pressing plate 22 at this time, and the fourth telescopic cylinder 29 needs to be started to adjust the position of the second pressing plate 22. Meanwhile, the pressing block 24 presses the first connecting plate 25, and the pressing degree of the second pressing plate 22 can be increased, so that the second pressing plate 22 is prevented from loosening.
After welding, the first swing cylinder 5 is driven to enable the swing rod 6 and the first pressing plate 7 to swing reversely, and the first pressing plate 7 does not press the bottom plate any more. Reversely rotating the handle 23 to make the pressing block 24 far away from the first connecting plate 25; the fourth telescopic cylinder 29 is driven to enable the first connecting plate 25, the second pressing plate 22 and the second positioning pin 38 to move reversely; driving the third telescopic cylinder 18 to make the second stop 20 move reversely; and driving a second telescopic air cylinder 35 to enable the top rod 33 and the second supporting column 34 to move reversely. Start the air pump, the end of giving vent to anger of air pump is to pumping in the first telescopic link 40, and first telescopic link 40 extension, when first telescopic link 40 can not extend again, the pressure increase in the first telescopic link 40, the pressure valve is opened, and in gas in the first telescopic link 40 can enter into second telescopic link 41, second telescopic link 41 also can extend. The extension of the first telescopic rod 40 will drive the second telescopic rod 41, the supporting block 42 and the beam body to move upwards, and the extension of the second telescopic rod 41 will drive the supporting block 42 and the beam body to move towards the operator. When the beam body is taken away, the air pump is closed, the air outlet is exhausted, and the first telescopic rod 40 and the second telescopic rod 41 are contracted to the initial state.
The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims (10)

1. Welding jig based on crossbeam assembly, its characterized in that: the device comprises a substrate, a driving mechanism, a bottom plate positioning and clamping mechanism and a beam body positioning and clamping mechanism, wherein the bottom plate positioning and clamping mechanism and the beam body positioning and clamping mechanism are fixed on the substrate; the driving mechanism is used for driving the substrate to turn over; the bottom plate positioning and clamping mechanisms and the beam body positioning and clamping mechanisms are respectively provided with two groups and are respectively positioned on two sides of the substrate, each group of bottom plate positioning and clamping mechanisms comprises a bottom plate positioning unit and two groups of bottom plate clamping units, and each group of beam body positioning and clamping units comprises a beam body positioning unit and a beam body clamping unit; the bottom plate positioning unit comprises a first positioning pin which can penetrate through a through hole in the bottom plate, and is positioned below the bottom plate; the two groups of bottom plate clamping units are respectively positioned at two sides of the bottom plate, and each bottom plate clamping unit comprises a supporting bottom plate, an energy absorption box and a clamping bottom plate; the beam body positioning unit is used for positioning one side of the beam body and supporting the beam body, and the beam body clamping unit is used for positioning the other side of the beam and clamping the beam body.
2. The beam assembly based weld fixture of claim 1, wherein: the base plate clamping unit comprises a first mounting seat and a first swing cylinder fixed on the first mounting seat, the first swing cylinder is fixed on the base plate through the first mounting seat, a swing rod is fixed on an output shaft of the first swing cylinder, a first pressing plate is connected onto the swing rod, a first supporting column used for supporting the base plate is fixed on the first swing cylinder, and the first supporting column is located below the first pressing plate.
3. The beam assembly based weld fixture of claim 2, wherein: the bottom plate positioning unit further comprises a second mounting seat and a first telescopic cylinder fixed on the second mounting seat, the second mounting seat fixes the first telescopic cylinder on the substrate, a first sliding seat is fixed on a telescopic rod of the first telescopic cylinder, a pin seat is fixed on the first sliding seat, and the first positioning pin is fixed on the pin seat.
4. The beam assembly based weld fixture of claim 3, wherein: the beam body positioning unit is positioned below the beam body and comprises a third mounting seat and a second telescopic cylinder fixed on the third mounting seat, the third mounting seat fixes the second telescopic cylinder on the base plate, a push plate is fixed on a telescopic rod of the second telescopic cylinder, and a top rod for abutting against one side of the energy absorption box and a second support column for supporting the beam body are fixed on the push plate; the second support column is perpendicular to the telescopic direction of the second telescopic cylinder, the ejector rod is parallel to the telescopic direction of the second telescopic cylinder, and a first stop block used for positioning one side of the beam body is fixed on the third mounting seat.
5. The beam assembly based weld fixture of claim 4, wherein: the beam body clamping unit comprises a first slide rail fixed on the base plate and a fourth mounting seat connected to the first slide rail in a sliding manner, a third telescopic cylinder is fixed on the base plate, a telescopic rod of the third telescopic cylinder is connected with the fourth mounting seat, a second stop block used for positioning the other side of the beam body is fixed on the fourth mounting seat, a fifth mounting seat is fixed on the fourth mounting seat, a fourth telescopic cylinder is fixed on the fifth mounting seat, a telescopic rod of the fourth telescopic cylinder is connected with a first connecting plate, and a second compression plate and a second positioning pin capable of penetrating through a through hole in the beam body are fixed on the first connecting plate; and a first connecting rod is further fixed on the fifth mounting seat, a handle is rotatably connected onto the first connecting rod, a second connecting rod is rotatably connected onto the handle, and a pressing block used for pressing the first connecting plate is rotatably connected onto the second connecting rod.
6. The beam assembly based weld fixture of claim 5, wherein: and a vertical second sliding rail is arranged on the fifth mounting seat, a second sliding seat is vertically and slidably connected in the second sliding rail, and the first connecting plate is fixed on the second sliding seat.
7. The beam assembly based weld fixture of claim 3, wherein: the first supporting column is fixed with a detection switch, and a protective sleeve is sleeved on the detection switch.
8. The beam assembly based weld fixture of claim 3, wherein: and a vertical third sliding rail is arranged on the second mounting seat, and the first sliding seat is connected in the third sliding rail in a sliding manner.
9. The beam assembly based weld fixture of claim 6, wherein: and a limiting block for limiting the second sliding seat to move is arranged on the fifth mounting seat.
10. The beam assembly based weld fixture of claim 6, wherein: the device comprises a base plate, a crossbeam body and a crossbeam body clamping unit, wherein the crossbeam body clamping unit is positioned below the crossbeam body and between two groups of bottom plate positioning and clamping mechanisms; the air inlet end of the air pump is communicated with a pipeline, and the port of the pipeline is close to the position where the beam body and the energy absorption box are welded; the first telescopic rod and the second telescopic rod are both provided with air outlet holes, the air outlet quantity of the air outlet holes in unit time is less than that of the air pump in unit time, and the extending direction of the second telescopic rod faces the direction of an operator; the shortest contraction position of the first telescopic rod and the second telescopic rod just corresponds to the beam body.
CN201920618107.0U 2019-04-30 2019-04-30 Welding jig based on crossbeam assembly Active CN210360068U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112059507A (en) * 2020-09-17 2020-12-11 十堰翊鹏工贸有限公司 Welding positioning device for automobile front cross beam

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112059507A (en) * 2020-09-17 2020-12-11 十堰翊鹏工贸有限公司 Welding positioning device for automobile front cross beam
CN112059507B (en) * 2020-09-17 2022-06-21 翊鹏(湖北)实业有限公司 Welding positioning device for automobile front cross beam

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PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Welding fixture based on beam assembly

Effective date of registration: 20220224

Granted publication date: 20200421

Pledgee: Societe Generale Limited by Share Ltd. Chongqing branch

Pledgor: CHONGQING SHANZHEN TECHNOLOGY DEVELOPMENT Co.,Ltd.

Registration number: Y2022500000009