Welding clamp for base stamping part

Abstract

The utility model discloses a welding fixture for a base stamping part, which comprises a horizontally arranged workbench, a base fixture, a connecting pipe positioning device and a bent plate feeding device, wherein the base fixture and the connecting pipe positioning device are respectively arranged at the top end of the workbench, and the bent plate feeding device is arranged at the top end of the workbench in a sliding manner; the bent plate feeding device comprises a bottom plate arranged on the workbench, a sliding base sliding on the top face of the bottom plate through a first guide rail and a bent plate containing base arranged on the sliding base, and the bent plate containing base comprises a first installation block installed on the sliding base, a second installation block installed on the first installation block and a T-shaped block installed on the second installation block. The top end of the second mounting block protrudes to form an inclined boss, the T-shaped block comprises a connecting block and a placing block which are perpendicular to each other, the connecting block is arranged on the inclined boss, a first check block is arranged on the side, away from the inclined boss, of the connecting block, and the first check block and the placing block are arranged at an interval. The welding clamp for the base stamping part is simple in structure, and welding precision is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of metal product production, especially a welding fixture of base stamping part. BACKGROUND

[0002] Welding, also known as soldering, is a manufacturing process and technology that joins metal or other thermoplastic materials such as plastic through heating, high temperature, or high pressure. Vehicle body components are mainly made of cold-rolled steel sheet stamping parts with good stamping and welding process, which are assembled and welded. When welding vehicle structures or parts, a welding fixture is needed to position the target part to prevent it from loosening during the welding process. However, existing welding fixtures are mostly fixed clamps, which means that once the parts are clamped, they are completely fixed and cannot be used for welding parts that need to be assembled after being fixed. Therefore, improvements are needed. SUMMARY

[0003] The utility model aims at providing a welding fixture for base stamping parts to overcome the shortcomings of the prior art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0005] The utility model discloses a welding fixture for base stamping parts, which comprises a base semi-finished product and a bent plate and a connecting pipe welded to the base semi-finished product, one end of the base semi-finished product is provided with a locking rod, and comprises a workbench arranged horizontally and a base clamp and a connecting pipe positioning device arranged at the top end of the workbench respectively, and a bent plate feeding device slidingly arranged at the top end of the workbench.

[0006] Further, in the above-mentioned welding fixture for base stamping parts, the side of the sliding seat away from the base clamp is connected with a first air cylinder.

[0007] Further, in the above-mentioned welding fixture for base stamping parts, a plurality of adjusting washers are arranged between the sliding seat and the first mounting block, between the first mounting block and the second mounting block, between the second mounting block and the T-shaped block, and between the T-shaped block and the first stop block.

[0008] Further, in the welding fixture for the base stamping part, the slide base is further provided with a first clamping device and an abutting seat corresponding to the base semi-product respectively.

[0009] Further, in the welding fixture for the base stamping part, the base clamp is provided with a bent plate clamping device on the side away from the bent plate feeding device.

[0010] Further, in the welding fixture for the base stamping part, the base clamp comprises a lock rod clamp, a first support seat, a second support seat and a first positioning pin slidingly inserted into the base semi-product in sequence, and the connecting pipe positioning device is arranged on the side of the first support seat away from the bent plate feeding device, and the connecting pipe positioning device comprises an insertion pin slidingly inserted into the connecting pipe.

[0011] Further, in the welding fixture for the base stamping part, the lock rod clamp comprises a lock rod support seat and a lock rod clamping device, and the top end of the lock rod support seat is recessed with a support groove corresponding to the lock rod.

[0012] Further, in the welding fixture for the base stamping part, the first support seat comprises a first support block arranged on the workbench and a second positioning pin arranged on the top end of the first support block, the top end of the first support block is provided with a blind hole, the second positioning pin comprises an installation section and a positioning section, the installation section is inserted into the blind hole, and the length of the installation section is smaller than the depth of the blind hole, and the two sides of the first support block are respectively provided with second stop blocks.

[0013] Further, in the welding fixture for the base stamping part, the second support seat comprises a second support block arranged on the workbench and a third positioning pin arranged on the top end of the second support block, and the two sides of the second support block are respectively provided with third stop blocks.

[0014] Further, in the welding fixture for the base stamping part, the top surface of the workbench is provided with a support frame corresponding to the first positioning pin, the first positioning pin is slidingly arranged in the support frame through a sliding plate, the sliding plate is slidingly arranged in the support frame through a second guide rail, and the side away from the base semi-product is connected with a second air cylinder.

[0015] Compared with the prior art, the welding fixture for the base stamping part has the advantages that the bent plate feeding device automatically feeds the bent plate to the welding position and fixes the bent plate through the bent plate clamping device, and does not interfere with the welding position. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0017] Figure 1 Fig. 1 shows a structural schematic diagram of a welding fixture of a base stamping part in an embodiment of the present application.

[0018] Figure 2 Fig. 1 shows a structural schematic diagram of a welding fixture of a base stamping part in an embodiment of the present application.

[0019] Figure 3 Fig. 1 shows a structural schematic diagram of a welding fixture of a base stamping part in an embodiment of the present application.

[0020] Figure 4 Fig. 1 shows a structural schematic diagram of a welding fixture of a base stamping part in an embodiment of the present application.

[0021] Figure 5 Fig. 1 shows a structural schematic diagram of a welding fixture of a base stamping part in an embodiment of the present application.

[0022] Figure 6 Fig. 1 shows a structural schematic diagram of a welding fixture of a base stamping part in an embodiment of the present application.

[0023] Figure 7 Fig. 1 shows a structural schematic diagram of a welding fixture of a base stamping part in an embodiment of the present application.

[0024] Figure 8 Fig. 1 shows a structural schematic diagram of a welding fixture of a base stamping part in an embodiment of the present application.

[0025] Figure 9 Fig. 1 shows a structural schematic diagram of a welding fixture of a base stamping part in an embodiment of the present application.

[0026] Figure 10 Fig. 1 shows a structural schematic diagram of a welding fixture of a base stamping part in an embodiment of the present application. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described in detail below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, and not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0028] In the description of the utility model, it needs to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or position relation based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the indicated device or element must have a particular orientation, construct and operate in a particular orientation, therefore, it cannot be understood as the limitation of the utility model. In addition, the term "first", "second", "third" is only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the utility model, it needs to explain, unless otherwise explicitly specified and limited, the term "installation", "connection", "connection" should be broad sense, for example, it can be fixed connection, can be detachable connection, or integrally connected, can be mechanical connection, can be electrical connection, can be directly connected, can be indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0030] Referring to Figures 1 to 10 As shown in the figure, a kind of base stamping piece welding fixture, the main body structure of baby carriage / push car is frame type structure, base stamping piece includes base semi-finished product and the bent plate and connecting pipe welded to base semi-finished product, its base semi-finished product includes bent main girder, respectively pre-welded in the lock rod seat (with lock rod) and hook plate of two ends of main girder and welded in the reinforcing plate and crossbar of main girder bending, including horizontally arranged workbench 1 and respectively arranged in the base clamp 2 and connecting pipe positioning device 3 of workbench 1 top and slidingly arranged in the bent plate feeding device 4 of workbench 1 top, bent plate feeding device 4 includes the bottom plate 41 arranged in the workbench 1 and the sliding seat 43 slid on the top surface of bottom plate 41 by first guide rail 42 and the bent plate placing seat 44 arranged in sliding seat 43, bent plate placing seat 44 includes the first mounting block 441 mounted in sliding seat 43, the second mounting block 442 mounted in first mounting block 441 and the T-shaped block 443 mounted in second mounting block 442, the top end of second mounting block 442 protrudes inclined boss, T-shaped block 443 includes mutually perpendicular connecting block and placing block, connecting block is arranged in inclined boss, first stop block 444 is arranged on the side of connecting block away from inclined boss, first stop block 444 and placing block are arranged with interval.

[0031] The technical scheme, the workbench is a conventional plate-shaped structure, and is horizontally arranged on the table top of the welding device through a conventional profile support or is detachably arranged on the table top of the welding device through bolts / quick clamps, a plurality of conventional mounting holes and avoiding grooves are processed in the workbench, the base semi-finished product welded in advance is placed on the base clamp, then the bending part of the bent plate is manually placed on the T-shaped block placing block in correspondence with the bending part, and is limited by the first stop block to prevent falling off, the sliding seat drives the bent plate placing seat to move along the two first guide rails to be close to the base semi-finished product, and the bent plate is moved to the corresponding welding position, the connecting pipe is manually inserted into the corresponding hole of the base semi-finished product, and the connecting pipe is positioned through the connecting pipe positioning device, so that the positioning of the bent plate and the connecting pipe is completed, and the bent plate and the connecting pipe are welded on the base semi-finished product by the external welding device, the welding clamp structure of the base stamping part is simple, the bent plate feeding device automatically feeds the bent plate to the welding position, and the bent plate is fixed by the bent plate clamping device without interfering with the welding position.

[0032] Exemplarily, referring to Figures 1 to 3 As shown in the figure, the side, away from the base clamp 2, of the sliding seat 43 is connected with the first air cylinder 45.

[0033] In the technical scheme, the first air cylinder is a conventional air cylinder structure, and is arranged on the bottom plate through a conventional air cylinder seat, and the sliding seat is driven to reciprocatingly move along the first guide rail through the extension and retraction of the first air cylinder piston rod, so that the circulation feeding of the bent plate is completed.

[0034] Exemplarily, referring to Figures 1 to 6 As shown in the figure, a plurality of adjusting washers 5 are arranged between the sliding seat 43 and the first mounting block 441, between the first mounting block 441 and the second mounting block 442, between the second mounting block 442 and the T-shaped block 443, and between the T-shaped block 443 and the first stop block 444.

[0035] In the technical scheme, the sliding seat and the first mounting block, the first mounting block and the second mounting block, the second mounting block and the T-shaped block, and the T-shaped block and the first stop block are fixed to each other through conventional mounting bolts and cylindrical pins, respectively, and a plurality of adjusting washers are arranged between the adjacent mounting surfaces, respectively, the adjusting washer is a sheet-shaped structure and is processed with an open U-shaped groove, the U-shaped groove is arranged in correspondence with the corresponding mounting bolt and cylindrical pin, the width of the adjusting washer is determined according to the size of the actual mounting surface, and the adjusting washer does not protrude from the corresponding mounting surface, the adjusting washer can also be made into multiple specifications similar to the different thicknesses of the feeler gauge, and multiple pieces are matched to meet the needs of different thickness adjustments, when disassembling, the corresponding mounting bolt is loosened, the mounting position of the T-shaped block is adjusted through the adjusting washer, and the feeding accuracy of the bent plate is improved.

[0036] Exemplarily, referring to Figures 1 to 3 As shown in the figure, the sliding seat 43 is further provided with a first clamping device 46 and an abutting seat 47 corresponding to the base semi-finished product, respectively.

[0037] In the technical scheme, the first clamping device comprises a first clamping cylinder arranged on the sliding base and a first pressing rod hingedly connected to a piston rod of the first clamping cylinder, a top surface of the first clamping cylinder is provided with a first hinged seat, and the first hinged seat is hingedly connected to the first pressing rod through a first connecting rod, so that the first pressing rod is driven to rotate through extension and retraction of the piston rod of the first clamping cylinder. After the bent plate feeding device pushes the bent plate to the welding position, the first clamping cylinder drives the first pressing rod to abut against the top surface of the base semi-finished product, thereby improving the stability of the fixation of the base semi-finished product and avoiding welding defects caused by shaking during welding. The first clamping device and the bent plate placing seat are arranged at intervals, so as to avoid interference with the cross rod of the base semi-finished product. The abutting seat comprises a fourth positioning pin inserted into the base semi-finished product and a mounting seat for mounting the fourth positioning pin. The mounting seat is assembled by a plurality of nylon blocks. A plurality of adjusting shims are arranged between adjacent nylon blocks, so as to improve the mounting precision of the fourth positioning pin. A plurality of limiting blocks corresponding to the sliding base are arranged on the side of the bottom plate away from the first cylinder, the limiting blocks limit the stroke of the sliding base, and the limiting blocks can be provided with a buffer pad and the like on the side close to the sliding base, so as to improve the stability of the stop position of the sliding base.

[0038] Exemplarily, as shown in Figures 1 to 3 The side of the base clamp 2 away from the bent plate feeding device 4 is provided with a bent plate clamping device 6.

[0039] In the technical scheme, the bent plate clamping device comprises a second clamping cylinder arranged on the sliding base and a second pressing rod hingedly connected to a piston rod of the second clamping cylinder. A top surface of the second clamping cylinder is provided with a second hinged seat, and the second hinged seat is hingedly connected to the second pressing rod through a second connecting rod, so that the second pressing rod is driven to rotate through extension and retraction of the piston rod of the second clamping cylinder. The bent plate is formed by stamping, and a protruding reinforcing portion is stamped at the bent portion of the bent plate. After the bent plate feeding device pushes the bent plate to the welding position, the second clamping cylinder drives the second pressing rod to abut against the reinforcing portion of the bent plate, without interfering with the welding position.

[0040] Exemplarily, as shown in Figure 1 , Figure 2 and Figures 7 to 10 The base clamp 2 comprises a lock rod clamp 21, a first support seat 22, a second support seat 23 and a first positioning pin 24 slidably inserted into the base semi-finished product, which are sequentially arranged. The connecting pipe positioning device 3 is arranged on the side of the first support seat 22 away from the bent plate feeding device 4. The connecting pipe positioning device 3 comprises an insertion pin 31 slidably inserted into the connecting pipe.

[0041] In the technical scheme, the first support seat and the second support seat are supported on the bottom surface of the corresponding part of the base semi-finished product. The lock rod clamp is used for fixing the lock rod of the base semi-finished product. The first positioning pin is inserted into the corresponding hole position on the side surface of the base semi-finished product, thereby improving the positioning precision of the base semi-finished product.

[0042] Exemplarily, as shown inFigure 1 、 Figure 2 and Figure 7 The locking rod clamp 21 comprises a locking rod support seat 211 and a locking rod clamping device 212, and a support groove corresponding to the locking rod is recessed at the top end of the locking rod support seat 211.

[0043] In the technical scheme, the locking rod support seat is arranged on the workbench through a plurality of nylon blocks, and a plurality of adjusting washers are arranged between adjacent nylon blocks to improve the installation accuracy of the locking rod support seat. The locking rod clamping device comprises a third clamping cylinder arranged on the workbench and a third pressing rod hingedly connected to the piston rod of the third clamping cylinder at one end. A third hinge seat is arranged on the top surface of the third clamping cylinder and is hingedly connected to the third pressing rod through a third connecting rod. Thus, the third pressing rod is driven to rotate through the extension and retraction of the piston rod of the third clamping cylinder. The third pressing rod abuts against the surface of the locking rod to improve the stability of the locking rod.

[0044] Exemplarily, as shown in Figure 8 and Figure 9 , the first support seat 22 comprises a first support block 221 arranged on the workbench 1 and a second positioning pin 222 arranged at the top end of the first support block 221. The top end of the first support block 221 is provided with a blind hole. The second positioning pin 222 comprises an installation section and a positioning section. The installation section is inserted into the blind hole, and the length of the installation section is less than the depth of the blind hole. Second stop blocks 223 are arranged on both sides of the first support block 221.

[0045] In the technical scheme, the first support block is fixed to the top surface of the workbench by bolts, etc. A blind hole with a square cross section is processed at the top end of the first support block. The installation section is a prism structure corresponding to the blind hole. After the installation section is installed in the blind hole, it is fixed by conventional structures such as cylindrical pins or bolts. The positioning section is a cylindrical structure corresponding to the inner wall of the connecting pipe. To facilitate machining, positioning and taking, two planes are processed on the circumferential surface of the positioning section. The positioning section is slidably inserted through the insertion hole of the connecting pipe and protrudes from the top end of the base semi-finished product. When the connecting pipe is placed, the inner wall of the connecting pipe is sleeved on the positioning section and inserted downward. The bottom of the connecting pipe and the top end of the installation section are spaced apart to ensure that the part of the connecting pipe that needs to be welded is in full contact with the base semi-finished product. After the connecting pipe is installed in place, the connecting pipe is rotated to align the corresponding hole position in the connecting pipe with the insertion pin. The insertion pin is slidably arranged on the workbench through a plurality of nylon blocks.

[0046] Exemplarily, as shown in Figure 7 and Figure 10 , the second support seat 23 comprises a second support block 231 arranged on the workbench 1 and a third positioning pin 232 arranged at the top end of the second support block 231. Third stop blocks 233 are arranged on both sides of the second support block 231.

[0047] In this technical solution, the second support block is arranged on the workbench through multiple nylon blocks, the top surface of which abuts against the corresponding bottom surface of the base semi-finished product, and is embedded with a third positioning pin corresponding to the base semi-finished product. The second support block is respectively provided with a third stop block on both sides through bolts, etc., which is used to limit the position of the base semi-finished product in the width direction.

[0048] For example, see Figure 7 and Figure 10 As shown, the top surface of the workbench 1 is provided with a support frame 241 corresponding to the first positioning pin 24, the first positioning pin 24 is slidably set on the support frame 241 through a slide 242, the slide 242 is slidably set on the support frame 241 through a second guide rail 243, and the side thereof facing away from the semi-finished product of the base is connected to a second cylinder 244.

[0049] In this technical solution, the second cylinder is a conventional cylinder and is arranged at the top of the support frame through a conventional cylinder seat. The slide is driven to slide back and forth along the second guide rail through the extension and contraction of its piston rod, that is, the first positioning pin is driven to slide and be inserted into the base semi-finished product, thereby improving the accuracy and stability of the fixation of the base semi-finished product, thereby improving the accuracy of welding.

[0050] In summary, the welding fixture of the base stamping part has a simple structure, and the bending plate feeding device automatically feeds the bent plate to the welding position and fixes it through the bending plate clamping device without interfering with the welding position.

[0051] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0052] The above description is only a specific implementation of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A welding fixture of a base stamping, the base stamping including a base semi-product and a bent plate and a connecting pipe welded to the base semi-product, one end of the base semi-product being provided with a lock bar, characterized in that, The utility model provides a base clamp and connecting pipe positioning device are arranged on the top of horizontal workbench respectively, and the bending plate feeding device is slidably arranged on the top of workbench, the bending plate feeding device comprises the bottom plate of workbench, the slide block that slides on the top surface of bottom plate through first guide rail and the bending plate placing seat that is arranged on the slide block, the bending plate placing seat includes the first mounting block that is installed on the slide block, the second mounting block that is installed on the first mounting block and the T-shaped block that is installed on the second mounting block, the top of second mounting block protrudes with the inclined boss, the T-shaped block includes the connecting block and the placing block that are perpendicular to each other, the connecting block is arranged on the inclined boss, and the first stopper is arranged on the side of connecting block that is away from the inclined boss, and the first stopper and the placing block are spaced apart.

2. The welding fixture for a base stamping of claim 1, wherein: The side, away from the base clamp, of the slide block is connected with a first air cylinder.

3. The welding fixture for a base stamping of claim 1, wherein: A plurality of adjusting washers are arranged between the slide block and the first mounting block, between the first mounting block and the second mounting block, between the second mounting block and the T-shaped block, and between the T-shaped block and the first stopper, respectively.

4. The welding fixture for a base stamping of claim 1, wherein: The slide block is further provided with a first clamping device and an abutment seat corresponding to the base semi-finished product, respectively.

5. The welding fixture for a base stamping of claim 1, wherein: The base clamp is provided with a bending plate clamping device on the side, away from the bending plate feeding device.

6. The welding fixture for a base stamping of claim 1, wherein: The base clamp comprises a lock rod clamp, a first support seat, a second support seat and a first positioning pin slidably inserted into the base semi-finished product, which are arranged in sequence, and the connecting pipe positioning device is arranged on the side, away from the bending plate feeding device, of the first support seat, and the connecting pipe positioning device comprises an insertion pin slidably inserted into the connecting pipe.

7. The welding fixture for a base stamping of claim 6, wherein: The lock rod clamp comprises a lock rod support seat and a lock rod clamping device, and the top of the lock rod support seat is recessed with a support groove corresponding to the lock rod.

8. The welding fixture for a base stamping of claim 6, wherein: The first support seat comprises a first support block arranged on the workbench and a second positioning pin arranged on the top of the first support block, the top of the first support block is provided with a blind hole, the second positioning pin comprises an installation section and a positioning section, the installation section is inserted into the blind hole, and the length of the installation section is less than the depth of the blind hole, and the two sides of the first support block are respectively provided with second stoppers.

9. The welding fixture for a base stamping of claim 6, wherein: The second support seat comprises a second support block arranged on the workbench and a third positioning pin arranged on the top of the second support block, and the two sides of the second support block are respectively provided with third stoppers.

10. The welding fixture for a base stamping of claim 6, wherein: The top surface of the workbench is provided with a support frame corresponding to the first positioning pin, the first positioning pin is slidably arranged in the support frame through a slide plate, the slide plate is slidably arranged in the support frame through a second guide rail, and the side, away from the base semi-finished product, of the slide plate is connected with a second air cylinder.

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