Welding fixture and welding fixture assembly with same

Abstract

The utility model provides a welding fixture and a welding fixture assembly with the same, the welding fixture is used for clamping a pedal of a step ladder assembly to be welded, the pedal comprises a pedal body and a pin shaft, the pin shaft is welded and connected to two sides of the pedal body in the width direction, the welding fixture comprises a base, a first positioning part and a second positioning part are arranged on the base, and the first positioning part and the second positioning part are arranged on the base. The first positioning part is used for positioning the pedal body; the second positioning part is used for positioning the pin shaft; the first clamping mechanism comprises a first pressing block and a second pressing block, the first pressing block is matched with the base to be used for clamping the pedal body, and the second pressing block is matched with the base to be used for clamping the pin shaft. According to the welding fixture, the first pressing block and the second pressing block are arranged, so that the pedal body and the pin shaft can be conveniently fixed, the welding difficulty can be reduced, the welding time can be saved, the welding efficiency can be improved, the welding precision can be improved, and the welding quality can be guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of welding fixture assembly technology, and in particular to a welding fixture and a welding fixture assembly having the same. Background Technology

[0002] In existing solutions, the ladder assembly is generally fixed by hand when welding. However, the hand-held fixing method cannot guarantee welding accuracy, thus failing to guarantee welding quality. At the same time, the hand-held fixing method requires manual operation, which does not improve welding efficiency. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a welding fixture that can guarantee welding quality.

[0004] This utility model also proposes a welding fixture assembly having the above-mentioned welding fixture.

[0005] According to a first aspect of the present invention, a welding fixture is used to clamp a tread of a ladder assembly to be welded. The tread includes a tread body and a pin. The pin is welded to both sides of the tread body in the width direction. The welding fixture includes: a base, on which a first positioning part and a second positioning part are provided. The first positioning part is used to position the tread body, and the second positioning part is used to position the pin. A first clamping mechanism includes: a first pressure block and a second pressure block. The first pressure block cooperates with the base to clamp the tread body, and the second pressure block cooperates with the base to clamp the pin.

[0006] According to the welding fixture of this utility model, the first pressure block and the second pressure block are provided, which can facilitate the fixing of the pedal body and the pin shaft, thereby reducing the welding difficulty, saving welding time, improving welding efficiency, improving welding precision, and ensuring welding quality.

[0007] According to some embodiments of the present invention, the pedal includes a plurality of pins arranged at intervals, and the number of the second pressure blocks is a plurality of them, which are arranged at intervals and correspond one-to-one with the plurality of pins.

[0008] According to some embodiments of the present invention, the first positioning part is formed as a positioning post, the positioning post being adapted to extend into the positioning hole of the pedal body, and the second positioning part is formed as a positioning groove adapted to accommodate the pin.

[0009] According to some embodiments of the present invention, the first clamping mechanism further includes: a first rotating shaft, which extends horizontally and is disposed on the base; a first movable rod, one end of which is rotatably sleeved on the first rotating shaft, and the other end extending radially away from the first rotating shaft; the first movable rod is provided with a plurality of first pressure blocks spaced apart along the length direction of the first movable rod; the first movable rod is also provided with a plurality of second pressure blocks spaced apart along the length direction of the first movable rod; and a first driving member, which is connected to the first movable rod and is used to drive the first movable rod to rotate, so as to drive the first pressure blocks and the second pressure blocks to cooperate with the base to press the pedal body and the pin.

[0010] According to some optional embodiments of the present invention, the number of the first clamping mechanisms is two, and the two first clamping mechanisms are symmetrically arranged in the axial direction of the first rotating shaft.

[0011] According to a second aspect embodiment of the present invention, a welding fixture is used to clamp a base plate of a ladder assembly to be welded. The base plate includes a base plate body and a limiting plate. The limiting plate is disposed on one side of the base plate body in the thickness direction and is used to limit the rotational position of the steps of the ladder assembly. The welding fixture includes: a base, on which a first positioning member and a second positioning member are provided. The first positioning member is used to position the base plate body, and the second positioning member is used to position the limiting plate; and a second clamping mechanism, which includes a third pressure block and a fourth pressure block. The third pressure block cooperates with the base to clamp the base plate body, and the fourth pressure block cooperates with the base to clamp the limiting plate.

[0012] According to the welding fixture of this utility model, the third pressure block and the fourth pressure block are provided, which can facilitate the fixing of the base plate body and the limiting plate, thereby reducing the welding difficulty, saving welding time, improving welding efficiency, improving welding accuracy, and ensuring welding quality.

[0013] According to some optional embodiments of the present invention, the first positioning member is formed as a positioning pin, which is adapted to extend into the through hole of the base plate body; the second positioning member is formed as a positioning block, which is adapted to fit against the limiting plate; the number of the second positioning members is multiple, and the multiple second positioning members are arranged at intervals along the length direction of the limiting plate.

[0014] According to some embodiments of the present invention, the second clamping mechanism includes: a second rotating shaft, which extends horizontally and is disposed on the base; a second movable rod, one end of which is rotatably sleeved on the second rotating shaft, and the other end of which extends radially away from the second rotating shaft, the other end of which is provided with a plurality of third pressure blocks, the plurality of third pressure blocks being arranged at intervals along the axial direction of the second rotating shaft; and a second driving member, which is connected to the second movable rod and is used to drive the second movable rod to rotate, so as to drive the third pressure blocks to cooperate with the base to clamp the base plate body.

[0015] According to some embodiments of the present invention, the second clamping mechanism includes: a third rotating shaft extending horizontally and disposed on the base; a third movable rod, one end of which is rotatably sleeved on the third rotating shaft, and the other end extending radially away from the third rotating shaft, the other end of which is provided with a plurality of fourth pressure blocks, the plurality of fourth pressure blocks being arranged at intervals along the axial direction of the third rotating shaft; and a third driving member connected to the third movable rod for driving the third movable rod to rotate, thereby causing the fourth pressure blocks to cooperate with the base to clamp the limiting plate.

[0016] A welding fixture assembly according to a third aspect of the present invention is used to clamp a ladder assembly to be welded. The ladder assembly includes: a tread and a base plate. The base plate defines a storage cavity open on one side. The tread is rotatably connected to the base plate in a stepping position and a storage position. In the storage position, the tread is stored in the storage cavity. In the stepping position, the tread is disposed perpendicular to the base plate and at least partially extends out of the storage cavity. The welding fixture assembly includes a welding fixture according to a first aspect of the present invention and / or a welding fixture according to a second aspect of the present invention.

[0017] According to the welding fixture assembly of this utility model, by setting the welding fixture of the first aspect embodiment and / or the welding fixture of the second aspect embodiment, the tread and the base plate can be welded, thereby reducing the welding difficulty of the ladder assembly, preventing the tread and the base plate from deforming during the welding process, thus ensuring the welding quality, and at the same time, improving the welding efficiency.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a welding fixture assembly according to an embodiment of the present utility model;

[0020] Figure 2 yes Figure 1 A schematic diagram of an angle of the welding fixture for the welding pedal shown;

[0021] Figure 3 yes Figure 2 A schematic diagram of the welding fixture for the welding pedal shown from another angle;

[0022] Figure 4 yes Figure 1 A schematic diagram of an angle of the welding fixture for the welding base plate shown in the figure;

[0023] Figure 5 yes Figure 4 A schematic diagram of the welding fixture for the welding base plate shown from another angle;

[0024] Figure 6 yes Figure 1 A schematic diagram of the pedal shown;

[0025] Figure 7 yes Figure 1 A schematic diagram of the base plate shown.

[0026] Figure label:

[0027] 100. Welding fixtures;

[0028] 10. Base; 11. First positioning part; 12. Second positioning part;

[0029] 20. First clamping mechanism; 21. First pressure block; 22. Second pressure block; 23. First rotating shaft; 24. First movable rod; 25. First driving component;

[0030] 30. Base; 31. First positioning component; 32. Second positioning component;

[0031] 40. Second clamping mechanism; 41. Third pressure block; 42. Fourth pressure block; 43. Second rotating shaft; 44. Second movable rod; 45. Second driving component; 46. Third rotating shaft; 47. Third movable rod; 48. Third driving component;

[0032] 200. Console;

[0033] 1000. Welding fixture assembly;

[0034] 2000, Step assembly; 2100, Step; 2110, Step body; 2111, Positioning hole; 2120, Pin; 2200, Base plate; 2210, Base plate body; 2211, Through hole; 2220, Limiting plate. Detailed Implementation

[0035] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0036] The following is a reference appendix. Figure 1-7 Describes a welding fixture 100 according to an embodiment of the present utility model.

[0037] Reference Figure 1 , Figure 2 , Figure 3 and Figure 6 According to the first aspect of the present invention, a welding fixture 100 is used to clamp the tread 2100 of a ladder assembly 2000 to be welded. The tread 2100 includes a tread body 2110 and a pin 2120, the pin 2120 being welded to the tread body 2110 in the width direction (e.g., ...). Figure 1 The two sides of the pedal body 2110 shown in the left and right directions,

[0038] The welding fixture 100 includes a base 10 and a first clamping mechanism 20. The base 10 is provided with a first positioning part 11 and a second positioning part 12. The first positioning part 11 is used to position the pedal body 2110, and the second positioning part 12 is used to position the pin 2120. The first clamping mechanism 20 includes a first pressure block 21 and a second pressure block 22. The first pressure block 21 cooperates with the base 10 to clamp the pedal body 2110, and the second pressure block 22 cooperates with the base 10 to clamp the pin 2120.

[0039] For example, such as Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, the pin 2120 is fixed on both sides of the pedal body 2110 in the left and right directions. The first clamping mechanism 20 is provided on the base 10. The first pressure block 21 cooperates with the base 10 to clamp the pedal body 2110 in the up and down direction. The second pressure block 22 cooperates with the base 10 to clamp the pin 2120 in the up and down direction.

[0040] When welding pedal 2100 using welding fixture 100, pedal body 2110 is first mounted on base 10 via first positioning part 11, and then pin 2120 is mounted on base 10 via second positioning part 12. Then, pedal body 2110 is clamped by first pressure block 21 cooperating with base 10, and pin 2120 is clamped by second pressure block 22 cooperating with base 10. After pedal body 2110 and pin 2120 are fixed by welding fixture 100, pin 2120 is welded to pedal body 2110.

[0041] The welding fixture 100 of this utility model is provided with a first pressure block 21 and a second pressure block 22. The first pressure block 2110 fixes the pedal body 2110 to the base 10, while the second pressure block 22 fixes the pin 2120 to the base 10. This facilitates welding of the pin 2120 to the pedal body 2110, thereby reducing welding difficulty, saving welding time, and improving welding efficiency. Furthermore, compared to the prior art method of manually fixing the pin 2120 and the pedal body 2110, the welding fixture 100 of this application also improves welding precision and ensures welding quality. Moreover, the first pressure block 21 and the second pressure block 22 respectively clamp the pedal body 2110 and the pin 2120, resulting in a reasonable distribution of clamping force in the welding fixture 100, which effectively prevents deformation of the pedal body 2110 and thus ensures welding quality.

[0042] In addition, a first positioning part 11 and a second positioning part 12 are provided. The first positioning part 11 can facilitate the positioning of the pedal body 2110 on the base 10, and the second positioning part 12 can facilitate the positioning of the pin 2120 on the base 10, thereby saving the time of preparation work before welding and effectively improving welding efficiency.

[0043] According to the embodiment of the present invention, the welding fixture 100 is provided with a first pressure block 21 and a second pressure block 22, which can facilitate the fixing of the pedal body 2110 and the pin 2120, thereby reducing the welding difficulty, saving welding time, improving welding efficiency, improving welding precision, and ensuring welding quality.

[0044] According to some embodiments of this utility model, refer to Figure 2 and Figure 6 The pedal 2100 includes multiple pins 2120 arranged at intervals, meaning that the pedal 2100 includes two, three, four, or more pins 2120. The number of second pressure blocks 22 is also multiple, meaning that the number of second pressure blocks 22 can be two, three, four, or more. These multiple second pressure blocks 22 are arranged at intervals and correspond one-to-one with the multiple pins 2120. Therefore, the multiple pins 2120 increase the connection points between the pedal 2100 and the base plate 2200, thereby ensuring the connection strength between the pins 2120 and the pedal 2100 and effectively preventing separation between the pedal 2100 and the base plate 2200. Simultaneously, each pin 2120 is clamped by a corresponding second pressure block 22, thus facilitating the fixation of the pin 2120 to the pedal body 2110.

[0045] For example, such as Figure 2 and Figure 6As shown, the pedal 2100 includes four pins 2120. Two pins 2120 are arranged on the left side of the pedal body 2110, and two pins 2120 are arranged on the right side of the pedal body 2110. The two pins 2120 on the same side are arranged at intervals in the front-back direction. There are four second pressure blocks 22, and each second pressure block 22 clamps one pin 2120.

[0046] According to some embodiments of this utility model, refer to Figure 2 and Figure 6 The first positioning part 11 is formed as a positioning post, which is adapted to extend into the positioning hole 2111 of the pedal body 2110. The second positioning part 12 is formed as a positioning groove adapted to accommodate the pin 2120. Thus, the matching form between the positioning post and the positioning hole 2111 is simple and convenient to operate, thereby facilitating the positioning of the pedal body 2110 on the base 10. At the same time, the pin 2120 is adapted to the positioning groove, thereby facilitating the installation of the pin 2120 on the second positioning part 12.

[0047] For example, such as Figure 2 and Figure 6 As shown, the positioning post extends in the vertical direction, and the upper end of the positioning post extends into the positioning hole 2111 of the pedal body 2110. The second positioning part 12 forms a positioning groove with the upper side open, and the pin 2120 is provided in the positioning groove.

[0048] According to some embodiments of this utility model, refer to Figure 1 , Figure 2 and Figure 3 The first clamping mechanism 20 may further include: a first rotating shaft 23, a first movable rod 24, and a first driving member 25. Specifically, the first rotating shaft 23 extends horizontally and is disposed on the base 10; one end of the first movable rod 24 (e.g., ...) Figure 2 The rear end of the first movable rod 24 shown is rotatably sleeved on the first rotating shaft 23, and the other end (such as...) Figure 2 The front end of the first movable rod 24 (as shown) extends radially away from the first rotating shaft 23 along the first rotating shaft 23, and the first movable rod 24 is provided with a section along the length direction of the first movable rod 24 (e.g. Figure 2 Multiple first pressure blocks 21 are arranged at intervals in the front-back direction of the first movable rod 24 shown. That is, the first movable rod can be provided with two, three, four or more second pressure blocks 22. The first movable rod 24 is also provided with multiple second pressure blocks 22 arranged at intervals along the length direction of the first movable rod 24. The first driving member 25 is connected to the first movable rod 24 to drive the first movable rod 24 to rotate, so as to drive the first pressure blocks 21 and the second pressure blocks 22 to cooperate with the base 10 to clamp the pedal body 2110 and the pin 2120.

[0049] In this way, the first movable rod 24 is rotatably connected to the first rotating shaft 23. When the first clamping mechanism 20 needs to clamp the pedal body 2110 and the pin 2120, the first movable rod 24 rotates until the first clamping mechanism 20 clamps the pedal body 2110 and the pin 2120. When the first clamping mechanism 20 does not need to clamp the pedal body 2110 and the pin 2120, the first movable rod 24 rotates until it separates from the base 10. This allows the clamping and releasing operations of the first clamping mechanism 20 to be realized. At the same time, the multiple second pressure blocks 22 can ensure that there are multiple fixed points between the first clamping mechanism 20 and the base 10, thereby ensuring the clamping strength of the first clamping mechanism 20 in clamping the pedal body 2110, and thus preventing the pedal body 2110 from moving and ensuring the welding quality.

[0050] In addition, the first driving member 25 drives the first pressure block 21 and the second pressure block 22 through the first movable rod 24. This driving form has a simple structure and is easy to operate, thereby improving clamping efficiency.

[0051] For example, such as Figure 1 , Figure 2 and Figure 3 As shown, the first movable rod 24 extends in the front-to-back direction. The rear end of the first movable rod 24 is connected to the first driving member 25 through the first rotating shaft 23. The front end of the first movable rod 24 is provided with two second pressure blocks 22. The first driving member 25 drives the first movable rod 24 to rotate through the first rotating shaft 23. The first movable rod 24 drives the first pressure block 21 and the second pressure block 22.

[0052] According to some optional embodiments of the present invention, refer to Figure 1 and Figure 2 There are two first clamping mechanisms 20, which are symmetrically arranged along the axial direction of the first rotating shaft 23. Therefore, setting two first clamping mechanisms 20 can ensure that the welding fixture 100 can provide a balanced clamping force, thereby effectively preventing deformation of the pedal body 2110 and ensuring the production quality of the pedal body 2110.

[0053] For example, such as Figure 1 and Figure 2 As shown, the first clamping mechanism 20 is provided with two second pressure blocks 22 and two first pressure blocks 21. The two first pressure blocks 21 are arranged at intervals in the front-back direction, the two second pressure blocks 22 are arranged at intervals in the front-back direction, and the two first clamping mechanisms 20 are arranged at intervals in the left-right direction, so that the four first pressure blocks 21 clamp the pedal body 2110 and the four second pressure blocks 22 clamp the four pins 2120 respectively.

[0054] According to the welding fixture 100 of the second aspect embodiment of the present utility model, referring to... Figure 1 , Figure 4 , Figure 5and Figure 7 A base plate 2200 for clamping the ladder assembly 2000 to be welded, the base plate 2200 includes a base plate body 2210 and a limiting plate 2220, the limiting plate 2220 being disposed in the thickness direction of the base plate body 2210 (e.g., ...). Figure 4 On one side of the base plate body 2210 (in the vertical direction shown) (e.g.) Figure 4 The upper side of the base plate body 2210 shown is used to limit the rotational position of the treads 2100 of the ladder assembly 2000.

[0055] The welding fixture 100 includes: a base 30 and a second clamping mechanism 40. The base 30 is provided with a first positioning member 31 and a second positioning member 32. The first positioning member 31 is used to position the base plate body 2210, and the second positioning member 32 is used to position the limiting plate 2220. The second clamping mechanism 40 includes: a third pressure block 41 and a fourth pressure block 42. The third pressure block 41 cooperates with the base 30 to clamp the base plate body 2210, and the fourth pressure block 42 cooperates with the base 30 to clamp the limiting plate 2220.

[0056] For example, such as Figure 1 , Figure 4 , Figure 5 and Figure 7 As shown, the limiting plate 2220 is fixed on the upper side of the base plate body 2210, the first clamping mechanism 20 is provided on the base 30, the third pressure block 41 cooperates with the base 30 to clamp the pedal body 2110 in the vertical direction, and the fourth pressure block 42 cooperates with the base 30 to clamp the limiting plate 2220 in the vertical direction.

[0057] When welding the base plate 2200 using the welding fixture 100, the base plate body 2210 is first installed on the base 30 through the first positioning member 31, and then the limiting plate 2220 is installed on the base 30 through the second positioning member 32. After that, the base plate body 2210 is clamped by the third pressure block 41 in cooperation with the base 30, and the limiting plate 2220 is clamped by the fourth pressure block 42 in cooperation with the base 30. After the base plate body 2210 and the limiting plate 2220 are fixed by the welding fixture 100, the limiting plate 2220 is welded to the base plate body 2210.

[0058] The welding fixture 100 of this utility model is provided with a third pressure block 41 and a fourth pressure block 42. The third pressure block 41 fixes the base plate body 2210 to the base 30, while the fourth pressure block 42 fixes the limiting plate 2220 to the base 30. This facilitates welding of the limiting plate 2220 to the base plate body 2210, thereby reducing welding difficulty, saving welding time, and improving welding efficiency. Furthermore, compared to the prior art's method of manually fixing the limiting plate 2220 and the base plate body 2210, the welding fixture 100 of this application also improves welding precision and ensures welding quality. Moreover, the third pressure block 41 and the fourth pressure block 42 respectively clamp the base plate body 2210 and the limiting plate 2220, resulting in a reasonable distribution of clamping force in the welding fixture 100. This effectively prevents deformation of the base plate body 2210, thus ensuring welding quality.

[0059] In addition, a first positioning member 31 and a second positioning member 32 are provided. The first positioning member 31 can facilitate the positioning of the base plate body 2210 on the base 30, and the second positioning member 32 can facilitate the positioning of the limiting plate 2220 on the base 30, thereby saving the time of preparation work before welding and effectively improving welding efficiency.

[0060] According to the embodiment of the present invention, the welding fixture 100 is provided with a third pressure block 41 and a fourth pressure block 42, which can facilitate the fixing of the base plate body 2210 and the limiting plate 2220, thereby reducing the welding difficulty, saving welding time, improving welding efficiency, improving welding accuracy, and ensuring welding quality.

[0061] According to some embodiments of this utility model, refer to Figure 1 , Figure 4 and Figure 5 The second clamping mechanism 40 includes: a second rotating shaft 43, a second movable rod 44, and a second driving member 45. Specifically, the second rotating shaft 43 extends horizontally and is disposed on the base 30; one end of the second movable rod 44 (e.g., ...) Figure 1 The rear end of the second movable rod 44 shown is rotatably sleeved on the second rotating shaft 43, and the other end (such as...) Figure 1 The front end of the second movable rod 44 shown extends radially away from the second rotating shaft 43. The other end of the second movable rod 44 is provided with a plurality of third pressure blocks 41. That is, the second movable rod 44 may be provided with two, three, four or more third pressure blocks 41. The plurality of third pressure blocks 41 are arranged at intervals along the axial direction of the second rotating shaft 43. The second driving member 45 is connected to the second movable rod 44 to drive the second movable rod 44 to rotate, so as to drive the third pressure blocks 41 to cooperate with the base 30 to clamp the base plate body 2210.

[0062] In this way, the second movable rod 44 is rotatably connected to the second rotating shaft 43. When the second clamping mechanism 40 needs to clamp the base plate body 2210, the second movable rod 44 rotates until the second clamping mechanism 40 clamps the pedal body 2110. When the second clamping mechanism 40 does not need to clamp the base plate body 2210, the second movable rod 44 rotates until it separates from the base 30. This allows the clamping and releasing operations of the second clamping mechanism 40 to be realized. At the same time, multiple third pressure blocks 41 can ensure that there are multiple fixing points between the second clamping mechanism 40 and the base 30 body, thereby ensuring the clamping strength of the second clamping mechanism 40 clamping the base plate body 2210, and thus preventing the base plate body 2210 from moving and ensuring welding quality.

[0063] In addition, the second driving member 45 drives the third pressure block 41 through the second movable rod 44. This driving form has a simple structure and is easy to operate, thereby improving clamping efficiency.

[0064] For example, such as Figure 1 , Figure 4 and Figure 5 As shown, the second movable rod 44 extends in the front-to-back direction. The rear end of the second movable rod 44 is connected to the second driving member 45 through the second rotating shaft 43. The front end of the second movable rod 44 is provided with two third pressure blocks 41. The two third pressure blocks 41 are arranged at intervals in the left-to-right direction. The second driving member 45 drives the second movable rod 44 to rotate through the second rotating shaft 43, and the second movable rod 44 drives the third pressure blocks 41.

[0065] According to some embodiments of this utility model, refer to Figure 1 , Figure 4 and Figure 5 The second clamping mechanism 40 includes: a third rotating shaft 46, a third movable rod 47, and a third driving member 48. Specifically, the third rotating shaft 46 extends horizontally and is disposed on the base 30; one end of the third movable rod 47 (e.g., Figure 1 The front end of the third movable rod 47 shown is rotatably sleeved on the third rotating shaft 46, and the other end (such as...) Figure 1 The rear end of the third movable rod 47 shown extends radially away from the third rotating shaft 46. The other end of the third movable rod 47 is provided with a plurality of fourth pressure blocks 42. That is, the third movable rod 47 may be provided with two, three, four or more fourth pressure blocks 42. The plurality of fourth pressure blocks 42 are arranged at intervals along the axial direction of the third rotating shaft 46. The third driving member 48 is connected to the third movable rod 47 to drive the third movable rod 47 to rotate, so as to drive the fourth pressure blocks 42 to cooperate with the base 30 to clamp the limiting plate 2220.

[0066] In this way, the third movable rod 47 is rotatably connected to the third rotating shaft 46. When the second clamping mechanism 40 needs to clamp the limiting plate 2220, the third movable rod 47 rotates until the second clamping mechanism 40 clamps the limiting plate 2220. When the second clamping mechanism 40 does not need to clamp the limiting plate 2220, the third movable rod 47 rotates until it separates from the base 30. This allows the clamping and releasing operations of the second clamping mechanism 40 to be realized. At the same time, multiple fourth pressure blocks 42 can ensure that there are multiple fixed points between the second clamping mechanism 40 and the limiting plate 2220, thereby ensuring the clamping strength of the first clamping mechanism 20 clamping the limiting plate 2220, and thus preventing the limiting plate 2220 from moving and ensuring welding quality.

[0067] In addition, the third driving member 48 drives the fourth pressure block 42 through the third movable rod 47. This driving form has a simple structure and is easy to operate, thereby improving clamping efficiency.

[0068] For example, such as Figure 1 , Figure 4 and Figure 5 As shown, the third movable rod 47 extends in the front-to-back direction. The front end of the third movable rod 47 is connected to the third driving member 48 through the third rotating shaft 46. The rear end of the third movable rod 47 is provided with two third pressure blocks 41. At the rear end of the two third pressure blocks 41, there are also two fourth pressure blocks 42. The two fourth pressure blocks 42 are arranged at intervals in the left-to-right direction. The third driving member 48 drives the third movable rod 47 to rotate through the third rotating shaft 46. The third movable rod 47 drives the third pressure blocks 41 and the fourth pressure blocks 42.

[0069] According to the third aspect embodiment of the present utility model, a welding fixture assembly 1000 is provided, referring to... Figure 1 , Figure 2 , Figure 4 , Figure 6 and Figure 7 The welding fixture assembly 1000 is used to clamp the ladder assembly 2000 to be welded. The ladder assembly 2000 includes: a tread 2100 and a base plate 2200. The base plate 2200 defines one side (e.g., Figure 2 The upper side of the base plate 2200 (shown) has an open storage cavity. The pedal 2100 is rotatably connected to the base plate 2200 in both the stepped and retracted positions. In the retracted position, the pedal 2100 is retracted into the storage cavity. In the stepped position, the pedal 2100 is positioned perpendicular to the base plate 2200 and at least partially extends out of the storage cavity; that is, either a portion or the entire pedal 2100 may extend out of the storage cavity. The welding fixture assembly 1000 includes the welding fixture 100 of the first aspect of this embodiment, and / or the welding fixture 100 of the second aspect of this embodiment.

[0070] For example, such as Figure 1 , Figure 2 , Figure 4 , Figure 6 and Figure 7 As shown, the welding fixture assembly 1000 includes a first welding fixture 100 and a second welding fixture 100. The two welding fixtures 100 respectively weld the pedal 2100 and the base plate 2200. After the pedal 2100 and the base plate 2200 are welded, the base plate 2200 is connected by four pins 2120 on the pedal 2100. The two pins 2120 on the rear side of the pedal 2100 are detachably connected to the base plate 2200, and the two pins 2120 on the front side of the pedal 2100 are rotatably connected to the base plate 2200.

[0071] When using the step ladder assembly 2000, the entire step 2100 of the step ladder assembly 2000 is located within the storage cavity defined by the base plate 2200. The step 2100 is in the storage position. Then, the pin 2120 at the rear end of the step 2100 is separated from the base plate 2200, and the rear end of the step 2100 rotates relative to the base plate 2200 around the pin 2120 at the front end of the step 2100. The step 2100 extends out of the storage cavity until the lower edge of the step 2100 abuts against the limiting plate 2220. At this time, the step 2100 is perpendicular to the base plate 2200, part of the step 2100 extends out of the storage cavity, and the step 2100 is in the stepping position, so that it can be stepped on.

[0072] According to the embodiments of the present invention, by setting the welding fixture 100 of the first aspect embodiment and / or the welding fixture 100 of the second aspect embodiment, the foot pedal 2100 and the base plate 2200 can be welded, thereby reducing the welding difficulty of the step assembly 2000, preventing the foot pedal 2100 and the base plate 2200 from deforming during the welding process, thereby ensuring the welding quality, and at the same time, improving the welding efficiency.

[0073] Furthermore, such as Figure 1 As shown, the welding fixture assembly 1000 includes a control console 200, which is electrically connected to the welding fixture 100. Therefore, no manual operation of the drive components is required, thus ensuring the clamping strength of the welding fixture 100 and effectively preventing damage to the ladder assembly 2000 by the welding fixture 100.

[0074] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0075] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0076] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0077] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0078] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A welding fixture (100) for clamping a tread plate (2100) of a tread step assembly (2000) to be welded, the tread plate (2100) comprising a tread plate body (2110) and a pin shaft (2120) weldedly connected at both sides in a width direction of the tread plate body (2110), characterized in that, The welding fixture (100) comprises: a base (10) provided with a first positioning part (11) for positioning the pedal body (2110) and a second positioning part (12) for positioning the pin shaft (2120); a first clamping mechanism (20) comprising a first pressing block (21) and a second pressing block (22), the first pressing block (21) being matched with the base (10) for clamping the pedal body (2110), and the second pressing block (22) being matched with the base (10) for clamping the pin shaft (2120).

2. The welding fixture (100) according to claim 1, characterized in that The pedal (2100) comprises a plurality of pin shafts (2120) arranged at intervals, and the number of the second pressing blocks (22) is plural, and the plurality of second pressing blocks (22) are arranged at intervals and correspond to the plurality of pin shafts (2120) one by one.

3. The welding fixture (100) of claim 1, wherein, The first positioning part (11) is formed as a positioning column adapted to extend into a positioning hole (2111) of the pedal body (2110), and the second positioning part (12) is formed as a positioning groove adapted to accommodate the pin shaft (2120).

4. The welding fixture (100) of claim 1, wherein, The first clamping mechanism (20) further comprises: a first rotating shaft (23) extending horizontally and arranged on the base (10); a first movable rod (24) having one end rotatably sleeved on the first rotating shaft (23) and the other end extending away from the first rotating shaft (23) in the radial direction of the first rotating shaft (23), the first movable rod (24) being provided with a plurality of first pressing blocks (21) arranged at intervals along the length direction of the first movable rod (24), and the first movable rod (24) being further provided with a plurality of second pressing blocks (22) arranged at intervals along the length direction of the first movable rod (24), a first driving member (25) connected with the first movable rod (24) for driving the first movable rod (24) to rotate, so as to drive the first pressing blocks (21) and the second pressing blocks (22) to press the pedal body (2110) and the pin shaft (2120) in cooperation with the base (10).

5. The welding fixture (100) according to claim 4, characterized in that The number of the first clamping mechanisms (20) is two, and the two first clamping mechanisms (20) are arranged symmetrically in the axial direction of the first rotating shaft (23).

6. A welding fixture (100) for clamping a bottom plate (2200) of a ladder assembly (2000) to be welded, the bottom plate (2200) comprising a bottom plate body (2210) and a limiting plate (2220) arranged on one side of the bottom plate body (2210) in the thickness direction of the bottom plate body (2210) for limiting the rotational position of a step plate (2100) of the ladder assembly (2000), characterized in that, The welding fixture (100) comprises: a base (30) provided with a first positioning member (31) for positioning the base body (2210) and a second positioning member (32) for positioning the limiting plate (2220); The second clamping mechanism (40) comprises a third pressing block (41) and a fourth pressing block (42), the third pressing block (41) is matched with the base (30) for clamping the bottom plate body (2210), and the fourth pressing block (42) is matched with the base (30) for clamping the limiting plate (2220).

7. The welding fixture (100) according to claim 6, characterized in that The first positioning member (31) is formed as a positioning pin which is adapted to extend into a through hole (2211) of the bottom plate body (2210), The second positioning member (32) is formed as a positioning block which is adapted to be attached to the limiting plate (2220), and the number of the second positioning members (32) is multiple, and the multiple second positioning members (32) are arranged along the length direction of the limiting plate (2220).

8. The welding fixture (100) of claim 6, wherein, The second clamping mechanism (40) comprises: A second rotating shaft (43) which extends horizontally and is arranged on the base (30); One end of a second movable rod (44) is rotatably sleeved on the second rotating shaft (43), and the other end extends away from the second rotating shaft (43) in the radial direction of the second rotating shaft (43), and the other end of the second movable rod (44) is provided with multiple third pressing blocks (41), and the multiple third pressing blocks (41) are arranged along the axial direction of the second rotating shaft (43); A second driving member (45) is connected with the second movable rod (44) for driving the second movable rod (44) to rotate, so as to drive the third pressing blocks (41) to cooperate with the base (30) to clamp the bottom plate body (2210).

9. The welding fixture (100) of claim 6, wherein, The second clamping mechanism (40) comprises: A third rotating shaft (46) which extends horizontally and is arranged on the base (30); One end of a third movable rod (47) is rotatably sleeved on the third rotating shaft (46), and the other end extends away from the third rotating shaft (46) in the radial direction of the third rotating shaft (46), and the other end of the third movable rod (47) is provided with multiple fourth pressing blocks (42), and the multiple fourth pressing blocks (42) are arranged along the axial direction of the third rotating shaft (46); A third driving member (48) is connected with the third movable rod (47) for driving the third movable rod (47) to rotate, so as to drive the fourth pressing blocks (42) to cooperate with the base (30) to clamp the limiting plate (2220).

10. A welding fixture assembly (1000) for clamping a stairway assembly (2000) to be welded, the stairway assembly (2000) comprising: A pedal (2100) and a base plate (2200) defining a receiving cavity open on one side, the pedal (2100) being rotatably connected to the base plate (2200) in a use position and in a receiving position, in the receiving position the pedal (2100) being received in the receiving cavity, in the use position the pedal (2100) being arranged perpendicular to the base plate (2200) and at least partially protruding from the receiving cavity, characterized in that the welding jig assembly (1000) comprises a welding jig (100) according to any one of claims 1-5 and / or a welding jig (100) according to any one of claims 6-9.

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