Christmas tree foot stool welding jig

Abstract

The utility model provides a Christmas tree foot stand welding jig which comprises a fixing bottom plate, a center fixing base, an inner side limiting assembly, a middle limiting assembly and an outer side limiting assembly, the center fixing base is fixed above the middle of the fixing bottom plate, four sets of sliding grooves are formed in the fixing bottom plate, the four sets of sliding grooves are diverged outwards with the center fixing base as the circle center, and the outer side limiting assembly is arranged on the center fixing base. Every two adjacent sets of sliding grooves are perpendicular to each other, the inner side limiting assembly, the middle limiting assembly and the outer side limiting assembly are sequentially fixed to the fixed bottom plate in the diverging direction of the sliding grooves, the inner side limiting assembly, the middle limiting assembly and the outer side limiting assembly are slidably connected with the sliding grooves, and the positions of the inner side limiting assembly, the middle limiting assembly and the outer side limiting assembly are adjustable in the direction of the sliding grooves. The fixing device has the advantages that all parts of the foot stool can be quickly and accurately fixed for automatic welding, and the welding efficiency and effect are greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of welding auxiliary devices, in particular to a welding jig for a Christmas tree stand. Background Art

[0002] The Christmas tree stand is used to fix the Christmas tree. After being assembled with the Christmas tree, it is used for decoration in various scenes. The middle part of the Christmas tree stand is a central cylinder that is mounted on the bottom of the Christmas tree trunk. Support legs and connecting ribs need to be welded on the outer circumference of the central cylinder. The support legs, connecting ribs and the central cylinder are welded into a stable structure similar to a triangle. When placed on the ground, the support legs play a role in supporting the Christmas tree. Current Christmas tree stands are generally provided with longitudinal support legs and transverse support legs. The longitudinal support legs and transverse support legs can rotate around the central cylinder. The longitudinal support legs and transverse support legs can be folded during storage to save space. When in use, the longitudinal support legs and transverse support legs are in a cross-shaped state. In order to ensure the functionality and strength of the Christmas tree stand, during the welding process, the support legs and connecting ribs need to be accurately aligned with the designated positions on the central cylinder, which brings operational inconvenience and a lot of time consumption to manual welding. Therefore, it is necessary to make a Christmas tree stand welding jig that can quickly locate the various components of the stand, and then use a welding robot for welding to improve welding efficiency and effect. Utility Model Content

[0003] The utility model aims to provide a Christmas tree stand welding jig to solve the problems mentioned in the background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A Christmas tree stand welding jig comprises a fixed base plate, a central fixed seat, an inner limit assembly, a middle limit assembly and an outer limit assembly, wherein the central fixed seat is fixed to the upper middle part of the fixed base plate, and the fixed base plate is provided with four groups of slide grooves, which diverge outwards with the central fixed seat as the center, and two adjacent groups of slide grooves are perpendicular to each other, and the inner limit assembly, the middle limit assembly and the outer limit assembly are sequentially fixed to the fixed base plate along the divergent direction of the slide grooves, and the inner limit assembly, the middle limit assembly and the outer limit assembly are all slidably connected with the slide grooves and can be adjusted in position along the direction of the slide grooves;

[0006] The center fixing seat includes a center base, a center cylinder, a positioning collar, a clamping block, a spring plunger, a collar positioning plate and a hand-held cylinder. The center base is fixed above the middle part of the fixed bottom plate, the center cylinder is fixed above the center base, the positioning collar is sleeved outside the center cylinder, the outer periphery of the upper end surface of the positioning collar is chamfered, a cross groove is opened at the upper end of the center cylinder, a cross boss matching the cross groove is provided at the lower end of the clamping block, the cross boss is inserted in the cross groove, the upper end of the collar positioning plate is fixed on the clamping block, there is a gap between the lower end of the collar positioning plate and the clamping block, the lower end of the collar positioning plate is provided with a U-shaped groove opening downward, the spring plunger is fixed on the clamping block and the outer end corresponds to the U-shaped groove, and the lower end of the hand-held cylinder is fixed to the upper end of the clamping block.

[0007] Further description of the utility model: The cross groove includes a transverse groove and a longitudinal groove which penetrate each other, and the width of the transverse groove is not equal to the width of the longitudinal groove.

[0008] Further description of the utility model: the inner limit assembly includes a first adjustment base, a first stand, a second stand, a first support plate, a second support plate, a first limit plate, a second limit plate, a first elastic telescopic member and an L-shaped pressure rod. The lower end of the first adjustment base is slidably connected to the slide groove. The first adjustment base is fixed to the fixed bottom plate and can be adjusted along the slide groove. The first stand and the second stand are both fixed to the first adjustment base and correspond to the two sides of the slide groove respectively. A first limit groove is formed between the first stand and the second stand. The two ends of the first support plate are respectively fixed to the first stand. The inner sides of the frame and the second frame, two groups of first limiting plates are arranged and are respectively fixed on the outer sides of the first frame and the second frame, the first limiting plate corresponds to the first support plate, the second support plate is fixed on the second frame and corresponds to the top of the first support plate, a supporting boss is provided on the side of the second support plate facing the first limiting groove, the second limiting plate is fixed on the first frame and corresponds to the second support plate, the first elastic telescopic member is vertically fixed to the upper end of the first frame, the lower end of the vertical rod of the L-shaped pressure rod is connected to the first elastic telescopic member, and the cross rod of the L-shaped pressure rod passes through the first limiting groove and is pressed tightly on the second frame.

[0009] Further description of the utility model: the middle limit assembly includes a second adjustment base, a third limit plate and a fourth limit plate. The lower end of the second adjustment base is slidably connected to the slide groove. The second adjustment base is fixed on the fixed base plate and can be adjusted along the slide groove direction. The second adjustment base is provided with a second limit groove opening upward. The third limit plate is fixed on the second adjustment base. The third limit plates are arranged in two groups and correspond to the two sides of the second limit groove respectively. The fourth limit plate is fixed on the second adjustment base. The fourth limit plate is arranged in two groups and correspond to the two sides of the second limit groove respectively. The fourth limit plate corresponds to the top of the third limit plate.

[0010] Further description of the utility model: the outer limiting assembly includes a third adjusting base, a connecting block, a second elastic telescopic member and a push rod. The lower end of the third adjusting base is slidably connected to the slide groove. The third adjusting base is fixed on the fixed bottom plate and the position is adjustable along the slide groove direction. The connecting block is fixed above the third adjusting base. The connecting block is provided with a third limiting groove with an opening facing inward. The second elastic telescopic member is fixed on the connecting block. The outer end of the push rod is fixed on the second elastic telescopic member. The push rod corresponds to the top of the third limiting groove.

[0011] The beneficial effects of the utility model are as follows: before welding, according to the size of the product to be welded, the positions of the inner limit assembly, the middle limit assembly and the outer limit assembly on the fixed bottom plate are adjusted; then, the first through hole on the center cylinder and the second through hole on the upper collar are aligned, and the center cylinder is sleeved into the lower end of the clamping block; at this time, the protruding position of the edge of the second through hole corresponds to the U-shaped groove on the collar positioning plate; the spring plunger is inserted into the first through hole and the second through hole in turn to fix the relative position of the upper collar and the center cylinder; then, the hand-held cylinder is held tightly and the cross boss is inserted into the cross groove; the center cylinder is The bottom of the cylinder and the lower ring are in contact with the center base. The positioning ring is used to guide and position the bottom of the center cylinder to prevent the center cylinder from shaking during welding. Then, the four groups of supporting feet and four groups of connecting ribs are fixed to the outer circumference of the center cylinder through the inner limit assembly, the middle limit assembly and the outer limit assembly. The welding robot can be used to automatically weld the welding position. After welding is completed, the entire product is lifted and taken out by holding the cylinder. The advantage of this design is that it can quickly and accurately fix the various components of the tripod for automatic welding, which greatly improves the efficiency and effect of welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is the product structure diagram of the Christmas tree stand;

[0013] Figure 2 It is the overall structure diagram of the utility model;

[0014] Figure 3 It is a structural diagram of the central fixing seat in the utility model;

[0015] Figure 4 It is a structural diagram of the inner side limit assembly in the utility model;

[0016] Figure 5 It is a structural diagram of the middle limit assembly of the utility model;

[0017] Figure 6 It is a structural diagram of the middle and outer side limit components of the utility model;

[0018] Description of reference numerals:

[0019] 001, center cylinder; 002, upper ring; 003, lower ring; 004, support foot; 005, connecting rib;

[0020] 1. Fixed bottom plate; 11. Slide groove; 2. Center fixed seat; 21. Center base; 22. Center cylinder;

[0021] 221, cross groove; 23, positioning collar; 24, clamping block; 241, cross boss; 25, spring plunger; 26, collar positioning plate; 261, U-shaped groove; 27, hand-held cylinder; 3, inner limit assembly;

[0022] 31. First adjustment base; 32. First stand; 33. Second stand; 34. First support plate; 35. Second support plate; 36. First limit plate; 37. Second limit plate; 38. First elastic telescopic member; 39. L-shaped pressure rod; 4. Middle limit assembly; 41. Second adjustment base; 42. Third limit plate; 43. Fourth limit plate; 5. Outer limit assembly; 51. Third adjustment base; 52. Connecting block; 53. Second elastic telescopic member; 54. Push rod. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings:

[0024] like Figure 1 As shown in the figure, the finished Christmas tree tripod is welded. The upper and lower sides of the center cylinder 001 of the tripod have been pre-installed with upper rings 002 and lower rings 003 before welding. The upper rings 002 and lower rings 003 can rotate around the center cylinder 001. When welding, it is necessary to weld support legs 004 on both the front and rear sides of the upper ring 002, weld connecting ribs 005 on both the front and rear sides of the lower ring 003, weld support legs 004 on both the left and right sides of the upper end of the center cylinder 001, and weld support legs 004 on both the left and right sides of the lower end of the center cylinder 001. Weld the connecting ribs 005, and weld each connecting rib 005 to the corresponding supporting leg 004. When the tripod is unfolded for use, the longitudinal supporting leg 004 and the transverse supporting leg 004 are vertical. A first through hole is provided at the upper end of the center cylinder 001, and a second through hole is provided at a position corresponding to the first through hole on the upper ring 002. The edge of the second through hole protrudes outward. By fastening screws on the first through hole and the second through hole, the positions of the longitudinal supporting leg 004 and the transverse supporting leg 004 are fixed to ensure stability during use.

[0025] like Figures 2 to 6As shown, a Christmas tree stand welding jig comprises a fixed base plate 1, a central fixed seat 2, an inner limit assembly 3, a middle limit assembly 4 and an outer limit assembly 5, wherein the central fixed seat 2 is fixed to the upper middle portion of the fixed base plate 1, and the fixed base plate 1 is provided with four groups of slide grooves 11, which diverge outwardly with the central fixed seat 2 as the center, and two adjacent groups of slide grooves 11 are perpendicular to each other, and the inner limit assembly 3, the middle limit assembly 4 and the outer limit assembly 5 are sequentially fixed to the fixed base plate 1 along the divergent direction of the slide groove 11, and the inner limit assembly 3, the middle limit assembly 4 and the outer limit assembly 5 are all slidably connected with the slide groove 11 and their positions are adjustable along the direction of the slide groove 11;

[0026] The center fixing seat 2 includes a center base 21, a center cylinder 22, a positioning collar 23, a clamping block 24, a spring plunger 25, a collar positioning plate 26 and a hand-held cylinder 27. The center base 21 is fixed above the middle of the fixed base plate 1, the center cylinder 22 is fixed above the center base 21, the positioning collar 23 is sleeved outside the center cylinder 22, the outer periphery of the upper end surface of the positioning collar 23 is chamfered, the upper end of the center cylinder 22 is provided with a cross groove 221, and the clamping block 24 is provided with a cross groove 222. A cross boss 241 matching the cross groove 221 is provided at the lower end, and the cross boss 241 is inserted into the cross groove 221. The upper end of the ring positioning plate 26 is fixed on the clamping block 24. There is a gap between the lower end of the ring positioning plate 26 and the clamping block 24. A U-shaped groove 261 opening downward is provided at the lower end of the ring positioning plate 26. The spring plunger 25 is fixed on the clamping block 24 and the outer end corresponds to the U-shaped groove 261. The lower end of the hand-held cylinder 27 is fixed on the upper end of the clamping block 24.

[0027] Before welding, according to the size of the product to be welded, adjust the positions of the inner limit assembly 3, the middle limit assembly 4 and the outer limit assembly 5 on the fixed base plate 1, then align the first through hole on the center cylinder 001 and the second through hole on the upper ring 002, and insert the center cylinder 001 into the lower end of the clamping block 24. At this time, the protruding position of the edge of the second through hole corresponds to the U-shaped groove 261 on the ring positioning plate 26, and the spring plunger 25 is inserted into the first through hole and the second through hole in turn to fix the relative position of the upper ring 002 and the center cylinder 001. Then, hold the hand-held cylinder 27 tightly and insert the cross boss 241 into the cross groove 221. The center cylinder 00 1 and the bottom of the lower ring 003 are in contact with the central base 21, and the positioning ring 23 is used to guide and position the bottom of the central cylinder 001 to prevent the central cylinder 001 from shaking during welding. Then, the four groups of supporting legs 004 and the four groups of connecting ribs 005 are fixed to the outer periphery of the central cylinder 001 through the inner limit assembly 3, the middle limit assembly 4 and the outer limit assembly 5, and the welding robot can be used to automatically weld the welding position. After the welding is completed, the entire product is lifted and taken out by holding the cylinder 27. The advantage of this design is that it can quickly and accurately fix the various components of the tripod for automatic welding, which greatly improves the efficiency and effect of welding.

[0028] The cross groove 221 includes a transverse groove and a longitudinal groove that penetrate each other, and the width of the transverse groove is not equal to the width of the longitudinal groove. The finished tripod is a front-to-back symmetrical structure, and the width of the transverse groove is not equal to the width of the longitudinal groove, which can prevent the upper ring 002 from deflecting 90° and causing the welding position to be wrong, thereby playing a role in preventing errors.

[0029] The inner limiting assembly 3 includes a first adjustment base 31, a first stand 32, a second stand 33, a first support plate 34, a second support plate 35, a first limiting plate 36, a second limiting plate 37, a first elastic telescopic member 38 and an L-shaped pressure rod 39. The lower end of the first adjustment base 31 is slidably connected to the slide groove 11. The first adjustment base 31 is fixed to the fixed base plate 1 and is positionally adjustable along the direction of the slide groove 11. The first stand 32 and the second stand 33 are both fixed to the first adjustment base 31 and correspond to the two sides of the slide groove 11 respectively. A first limiting groove is formed between the first stand 32 and the second stand 33. The two ends of the first support plate 34 are respectively fixed to the first stand 32 and the first stand 33. On the inner side of the second frame 33, two groups of first limit plates 36 are arranged and are fixed on the outer sides of the first frame 32 and the second frame 33 respectively, the first limit plate 36 corresponds to the first support plate 34, the second support plate 35 is fixed on the second frame 33 and corresponds to the top of the first support plate 34, the second support plate 35 is provided with a supporting boss on the side facing the first limit groove, the second limit plate 37 is fixed on the first frame 32 and corresponds to the second support plate 35, the first elastic telescopic member 38 is vertically fixed to the upper end of the first frame 32, the lower end of the vertical rod of the L-shaped pressure rod 39 is connected to the first elastic telescopic member 38, and the cross rod of the L-shaped pressure rod 39 passes through the first limit groove and is pressed tightly on the second frame 33.

[0030] The first adjustment base 31 can flexibly adjust the position according to the size of the supporting foot 004 and the connecting rib 005. The first support plate 34 is used to support the connecting rib 005. A V-shaped groove can be set on the first support plate 34 to facilitate the positioning of the connecting rib 005. The supporting boss on the second support plate 35 is used to support the supporting foot 004. The position and angle of the first limiting plate 36 and the second limiting plate 37 relative to the first limiting groove can be adjusted to limit the position of the connecting rib 005 and the supporting foot 004. After the supporting foot 004 is placed, the L-shaped pressure rod 39 is pressed against the supporting foot 004. After welding is completed, when the product needs to be taken out, the L-shaped pressure rod 39 is lifted up and rotated 90° and then released. Under the action of the first elastic telescopic member 38, it is pressed against the first stand 32. When taking it out, the connecting rib 005 can be directly taken out through the gap between the second support plate 35 and the second limiting plate 37.

[0031] The middle limiting assembly 4 includes a second adjusting base 41, a third limiting plate 42 and a fourth limiting plate 43. The lower end of the second adjusting base 41 is slidably connected to the slide groove 11. The second adjusting base 41 is fixed on the fixed base plate 1 and is positionally adjustable along the direction of the slide groove 11. The second adjusting base 41 is provided with a second limiting groove opening upward. The third limiting plate 42 is fixed on the second adjusting base 41. The third limiting plates 42 are arranged in two groups and correspond to the two sides of the second limiting groove respectively. The fourth limiting plate 43 is fixed on the second adjusting base 41. The fourth limiting plates 43 are arranged in two groups and correspond to the two sides of the second limiting groove respectively. The fourth limiting plate 43 corresponds to the top of the third limiting plate 42.

[0032] The second adjustment base 41 can be flexibly adjusted in position according to the size of the support leg 004 and the connecting rib 005 , and the position and angle of the third limiting plate 42 and the fourth limiting plate 43 relative to the second limiting groove can be adjusted to limit the position of the connecting rib 005 and the support leg 004 .

[0033] The outer limiting assembly 5 includes a third adjusting base 51, a connecting block 52, a second elastic telescopic member 53 and a push rod 54. The lower end of the third adjusting base 51 is slidably connected to the slide groove 11. The third adjusting base 51 is fixed on the fixed base plate 1 and is positionally adjustable along the direction of the slide groove 11. The connecting block 52 is fixed above the third adjusting base 51. The connecting block 52 is provided with a third limiting groove with an opening facing inward. The second elastic telescopic member 53 is fixed on the connecting block 52. The outer end of the push rod 54 is fixed on the second elastic telescopic member 53. The push rod 54 corresponds to the top of the third limiting groove.

[0034] The third adjustment base 51 can flexibly adjust the position according to the size of the supporting foot 004 and the connecting rib 005, and the outer end of the supporting foot 004 is placed in the third limiting groove of the connecting block 52, and the connecting rib 005 is placed in the third limiting groove and the outer end contacts the supporting foot 004. If there is a preset hole position on the supporting foot 004, the outer end of the connecting rib 005 is inserted into the hole, and the top rod 54 presses the supporting foot 004 inward under the action of the second elastic telescopic member 53.

[0035] The above does not limit the technical scope of the present invention. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A Christmas tree stand welding jig, characterized by: It comprises a fixed bottom plate, a central fixed seat, an inner limit assembly, a middle limit assembly and an outer limit assembly, wherein the central fixed seat is fixed to the upper middle part of the fixed bottom plate, and the fixed bottom plate is provided with four groups of slide grooves, which diverge outwards with the central fixed seat as the center, and two adjacent groups of slide grooves are perpendicular to each other, and the inner limit assembly, the middle limit assembly and the outer limit assembly are sequentially fixed to the fixed bottom plate along the divergent direction of the slide grooves, and the inner limit assembly, the middle limit assembly and the outer limit assembly are all slidably connected with the slide grooves and their positions are adjustable along the slide groove direction; The center fixing seat includes a center base, a center cylinder, a positioning collar, a clamping block, a spring plunger, a collar positioning plate and a hand-held cylinder. The center base is fixed above the middle part of the fixed bottom plate, the center cylinder is fixed above the center base, the positioning collar is sleeved outside the center cylinder, the outer periphery of the upper end surface of the positioning collar is chamfered, a cross groove is opened at the upper end of the center cylinder, a cross boss matching the cross groove is provided at the lower end of the clamping block, the cross boss is inserted in the cross groove, the upper end of the collar positioning plate is fixed on the clamping block, there is a gap between the lower end of the collar positioning plate and the clamping block, the lower end of the collar positioning plate is provided with a U-shaped groove opening downward, the spring plunger is fixed on the clamping block and the outer end corresponds to the U-shaped groove, and the lower end of the hand-held cylinder is fixed to the upper end of the clamping block.

2. A Christmas tree stand welding jig according to claim 1, characterized in that: The cross groove includes a transverse groove and a longitudinal groove penetrating each other, and the width of the transverse groove is not equal to the width of the longitudinal groove.

3. A Christmas tree stand welding jig according to claim 1, characterized in that: The inner limit assembly includes a first adjustment base, a first stand, a second stand, a first support plate, a second support plate, a first limit plate, a second limit plate, a first elastic telescopic member and an L-shaped pressure rod. The lower end of the first adjustment base is slidably connected to the slide groove. The first adjustment base is fixed to the fixed bottom plate and can be adjusted along the slide groove. The first stand and the second stand are both fixed to the first adjustment base and correspond to the two sides of the slide groove respectively. A first limit groove is formed between the first stand and the second stand. The two ends of the first support plate are respectively fixed to the inner sides of the first stand and the second stand. Two groups of first limit plates are arranged and are respectively fixed on the outer sides of the first frame and the second frame, the first limit plate corresponds to the first support plate, the second support plate is fixed on the second frame and corresponds to the top of the first support plate, a supporting boss is provided on the side of the second support plate facing the first limit groove, the second limit plate is fixed on the first frame and corresponds to the second support plate, the first elastic telescopic member is vertically fixed to the upper end of the first frame, the lower end of the vertical rod of the L-shaped pressure rod is connected to the first elastic telescopic member, and the cross rod of the L-shaped pressure rod passes through the first limit groove and is pressed tightly on the second frame.

4. A Christmas tree stand welding jig according to claim 1, characterized in that: The middle limiting assembly includes a second adjusting base, a third limiting plate and a fourth limiting plate, the lower end of the second adjusting base is slidably connected to the slide slot, the second adjusting base is fixed to the fixed base plate and is adjustable along the slide slot direction, the second adjusting base is provided with a second limiting slot opening upward, the third limiting plate is fixed to the second adjusting base, the third limiting plates are arranged in two groups and correspond to the two sides of the second limiting slot respectively, the fourth limiting plate is fixed to the second adjusting base, the fourth limiting plates are arranged in two groups and correspond to the two sides of the second limiting slot respectively, and the fourth limiting plate corresponds to the top of the third limiting plate.

5. The Christmas tree stand welding jig according to claim 1, characterized in that: The outer limiting assembly includes a third adjusting base, a connecting block, a second elastic telescopic member and a push rod, the lower end of the third adjusting base is slidably connected to the slide groove, the third adjusting base is fixed to the fixed bottom plate and is adjustable along the slide groove direction, the connecting block is fixed above the third adjusting base, the connecting block is provided with a third limiting groove opening facing inward, the second elastic telescopic member is fixed to the connecting block, the outer end of the push rod is fixed to the second elastic telescopic member, and the push rod corresponds to the top of the third limiting groove.

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