Welding ball center positioning device

Abstract

The utility model discloses a welding ball center positioning device which comprises a welding ball and a positioning device, the positioning device is arranged, opposite translation adjustment is carried out by adjusting an adjusting mechanism, and two sets of soft rubber sleeves are attached to the middles of the left end and the right end of the welding ball, so that the effect of four-side auxiliary opposite positioning of the welding ball is achieved. By arranging the adjusting mechanism, a rotary knob rod is rotated to enable a driving gear to rotate and to be meshed with racks on the left side and the right side in the opposite direction for translation, meanwhile, the racks drive a connecting plate and a positioning plate to translate in the opposite direction when translating, and the front side and the rear side of a welding ball are subjected to auxiliary positioning.

Description

Technical Field

[0001] The utility model relates to the technical field of building component assembly, and specifically relates to a centering device for the center of a welded ball. Background Technique

[0002] At present, large-span grid steel structures are generally formed by welding joint welded balls and various rods. They have the advantages of light weight, high stiffness, and good seismic performance, and can be used as the roofs of buildings such as gymnasiums, cinemas, exhibition halls, waiting halls, and aircraft hangars. Using welded balls as the joints of grid structures is one of the most commonly used joint forms at present, which has the advantages of simple structure, clear force transmission, and convenient connection. The existing positioning devices and positioning methods for welded balls mainly fix the welded balls on temporary positioning measures with preset dimensions, and then adjust the positions of the temporary positioning measures to achieve the positioning of the welded balls. Such positioning devices generally have the problem of poor versatility.

[0003] For example, the patent with the publication number CN201821397758.3 discloses a "positioning device for welded balls". Since the relative positions between the first pipe and the second pipe can be adjusted, and then the overall length of the height positioning component can be adjusted, the positioning device for welded balls provided in this embodiment can meet the positioning requirements of welded balls with different target heights.

[0004] When positioning the welded ball, due to the roundness and smoothness of the sphere, when the welded ball is placed on the support frame for auxiliary positioning, it is judged by the naked eye for the erection accuracy, and the accuracy is poor, which is not conducive to the centering effect of the welded ball. Content of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] In view of the deficiencies of the prior art, the utility model provides a centering device for the center of a welded ball, which solves the problems mentioned above.

[0007] (2) Technical Solutions

[0008] To achieve the above purposes, the utility model is realized through the following technical solutions: a centering device for the center of a welded ball, including a welded ball and a positioning device. The welded ball is installed in the middle of the top of the positioning device. The positioning device includes a base, an adjusting mechanism, a fixing plate, a support plate, and a soft rubber sleeve. The adjusting mechanism is installed inside the upper end of the base. The fixing plate is installed on the right side of the top of the base. The upper left side of the fixing plate is fixed to the right end of the support plate. The soft rubber sleeve is installed at the left end of the support plate. The welded ball is installed at the connection between the upper end of the adjusting mechanism and the middle of the soft rubber sleeve.

[0009] Preferably, the adjusting mechanism includes a knob rod, a driving gear, a rack, a connecting plate and a positioning plate. The upper end of the knob rod is fixed to the inner side of the middle of the driving gear. The driving gear meshes with the rack and rotates. The upper rear side of the rack is fixed to the lower left side of the left end of the connecting plate. The upper right side of the connecting plate is fixed to the rear end of the positioning plate. The driving gear and the rack are respectively installed inside the upper end of the base.

[0010] Preferably, two sets of the fixing plate, the supporting plate and the soft rubber sleeve are respectively installed, and the two sets of the fixing plate, the supporting plate and the soft rubber sleeve are arranged in a staggered manner with the middle part of the adjusting mechanism, so as to play an auxiliary fixing and positioning role on the left and right sides of the welding ball.

[0011] Preferably, the soft rubber sleeve is made of soft rubber material, and the soft rubber sleeve is arranged in a fitting manner with the right end of the welding ball. At the same time, the soft rubber material of the soft rubber sleeve is used to increase the fitting and positioning effect with the left and right sides of the welding ball.

[0012] Preferably, the racks are symmetrically arranged on the left and right sides of the driving gear, and the connecting plate and the positioning plate are symmetrically arranged on the front and rear sides of the driving gear, so as to achieve the effect of multi-angle positioning of the welding ball.

[0013] Preferably, sliding grooves are respectively formed on the left and right sides of the top end of the base, and the lower left side of the left end of the connecting plate is in sliding fit with the sliding grooves on the left and right sides of the top end of the base, so as to assist the positioning plate to achieve the effect of translational adjustment.

[0014] Preferably, the two positioning plates are respectively arranged in a fitting manner with the front and rear ends of the welding ball, so as to play an auxiliary positioning role on the front and rear sides of the welding ball.

[0015] (III) Beneficial effects

[0016] The utility model provides a device for positioning the center of a welding ball. It has the following beneficial effects: by providing a positioning device, the opposite translational adjustment is carried out by adjusting the adjusting mechanism, and the two soft rubber sleeves are arranged in a fitting manner with the middle parts of the left and right ends of the welding ball, so as to achieve the effect of four-side auxiliary opposite positioning of the welding ball.

[0017] The utility model provides a device for positioning the center of a welding ball. It has the following beneficial effects: by providing an adjusting mechanism, the driving gear is rotated by rotating the knob rod and meshes with the racks on the left and right sides in an opposite direction for translation. At the same time, when the rack translates, it drives the connecting plate and the positioning plate to translate in an opposite direction, and plays an auxiliary positioning role on the front and rear sides of the welding ball. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the utility model;

[0019] Figure 2Structural schematic diagram of the present utility model;

[0020] Figure 3 Structural schematic diagram in the present utility model;

[0021] Figure 4 Structural schematic diagram in the present utility model;

[0022] Figure 5 Structural schematic diagram in the present utility model.

[0023] In the figure: welding ball - 1, positioning device - 2, base - 21, adjusting mechanism - 22, fixing plate - 23, support plate - 24, soft rubber sleeve - 25, knob rod - 221, driving gear - 222, rack - 223, connecting plate - 224, positioning plate - 225. Specific implementation manner

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figure 1 and 2 , the present utility model provides a technical solution for a welding ball center positioning device: a welding ball center positioning device, including a welding ball 1 and a positioning device 2, and the welding ball 1 is installed in the middle of the top end of the positioning device 2.

[0026] Please refer to Figure 3 and 4 , the present utility model provides a technical solution for a welding ball center positioning device: a welding ball center positioning device, the positioning device 2 includes a base 21, an adjusting mechanism 22, a fixing plate 23, a support plate 24 and a soft rubber sleeve 25. The adjusting mechanism 22 is installed inside the upper end of the base 21. The fixing plate 23 is installed on the right side of the top end of the base 21. The upper left side of the fixing plate 23 is fixed to the right end of the support plate 24. The soft rubber sleeve 25 is installed at the left end of the support plate 24. The welding ball 1 is installed at the connection between the upper end of the adjusting mechanism 22 and the middle of the soft rubber sleeve 25. The fixing plate 23, the support plate 24 and the soft rubber sleeve 25 are respectively installed in two groups, and the two groups of fixing plates 23, support plates 24 and soft rubber sleeves 25 are arranged in a staggered manner with respect to the middle of the adjusting mechanism 22, so as to play an auxiliary fixing and positioning effect on the left and right sides of the welding ball 1. The soft rubber sleeve 25 is made of soft rubber material, and the soft rubber sleeve 25 is arranged in a fitting manner with the right end of the welding ball 1. At the same time, the soft rubber material of the soft rubber sleeve 25 is used to increase the fitting and positioning effect with the left and right sides of the welding ball 1.

[0027] Please refer to Figure 5 , the present utility model provides a technical solution for a welding ball center positioning device: a welding ball center positioning device, the adjusting mechanism 22 includes a knob rod 221, a driving gear 222, a rack 223, a connecting plate 224 and a positioning plate 225. The upper end of the knob rod 221 is fixed to the inner side of the middle part of the driving gear 222. The driving gear 222 meshes and rotates with the rack 223. The upper rear side of the rack 223 is fixed to the lower left side of the left end of the connecting plate 224. The upper right side of the connecting plate 224 is fixed to the rear end of the positioning plate 225. The driving gear 222 and the rack 223 are respectively installed inside the upper end of the base 21. The rack 223 is symmetrically arranged on the left and right sides of the driving gear 222. The connecting plate 224 and the positioning plate 225 are symmetrically arranged on the front and rear sides of the driving gear 222, so as to achieve the effect of multi-angle positioning of the welding ball 1. The left and right sides of the top of the base 21 are respectively provided with sliding grooves. The lower left side of the connecting plate 224 is slidably matched with the sliding grooves on the left and right sides of the top of the base 21, so as to assist the positioning plate 225 to play a role of translational adjustment. The two groups of positioning plates 225 are respectively arranged in contact with the front and rear ends of the welding ball 1, so as to play an auxiliary positioning effect on the front and rear sides of the welding ball 1.

[0028] When in use, by rotating the knob rod 221 of the base 21, while the driving gear 222 rotates and meshes and translates in opposite directions with the racks 223 on the left and right sides. When the two groups of racks 223 translate in opposite directions, the two groups of racks 223 respectively drive the two groups of connecting plates 224 and positioning plates 225 to translate in opposite directions along the left and right sides of the upper end of the base 21, and play an auxiliary positioning role on the front and rear sides of the welding ball 1;

[0029] Subsequently, the middle parts of the left and right ends of the welding ball 1 are respectively placed at the connection parts of the two groups of soft rubber sleeves 25, and the inner sides of the two groups of soft rubber sleeves 25 are attached to the middle parts of the left and right ends of the welding ball 1, so as to achieve the effect of four-side auxiliary positioning of the welding ball 1 through the positioning device 2.

[0030] The control mode of the present utility model is controlled by manually starting and closing the switch. The wiring diagram of the power element and the power supply are common knowledge in the field. And the present utility model is mainly used to protect mechanical devices, so the control mode and wiring layout of the present utility model will not be explained in detail.

[0031] The control mode of the present utility model is automatically controlled by a controller. The control circuit of the controller can be realized by simple programming by those skilled in the art. The power supply is also common knowledge in the field. And the present utility model is mainly used to protect mechanical devices, so the control mode and circuit connection of the present utility model will not be explained in detail.

[0032] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A centering device for the center of a welded ball, comprising a welded ball (1); It is characterized in that: It further includes a positioning device (2), the welded ball (1) is installed in the middle of the top end of the positioning device (2), the positioning device (2) includes a base (21), an adjusting mechanism (22), a fixing plate (23), a support plate (24) and a soft rubber sleeve (25), the adjusting mechanism (22) is installed inside the upper end of the base (21), the fixing plate (23) is installed on the right side of the top end of the base (21), the upper left side of the fixing plate (23) is fixed to the right end of the support plate (24), the soft rubber sleeve (25) is installed at the left end of the support plate (24), and the welded ball (1) is installed at the connection between the upper end of the adjusting mechanism (22) and the middle of the soft rubber sleeve (25).

2. The centering device for the center of a welded ball according to claim 1, characterized in that: The adjusting mechanism (22) includes a knob rod (221), a driving gear (222), a rack (223), a connecting plate (224) and a positioning plate (225), the upper end of the knob rod (221) is fixed to the inner middle of the driving gear (222), the driving gear (222) meshes with the rack (223) and rotates, the upper rear side of the rack (223) is fixed to the lower left side of the left end of the connecting plate (224), the upper right side of the connecting plate (224) is fixed to the rear end of the positioning plate (225), and the driving gear (222) and the rack (223) are respectively installed inside the upper end of the base (21).

3. A centering device for the center of a welded ball according to claim 1, characterized in that: Two groups of the fixing plate (23), the support plate (24) and the soft rubber sleeve (25) are respectively installed, and the two groups of the fixing plate (23), the support plate (24) and the soft rubber sleeve (25) are arranged staggeredly with the middle of the adjusting mechanism (22).

4. A centering device for the center of a welded ball according to claim 1, characterized in that: The soft rubber sleeve (25) is made of soft rubber material, and the soft rubber sleeve (25) is arranged in fit with the right end of the welded ball (1).

5. The center positioning device for welding balls according to claim 2, wherein: The rack (223) is symmetrically arranged on the left and right sides of the driving gear (222), and the connecting plate (224) and the positioning plate (225) are symmetrically arranged on the front and rear sides of the driving gear (222).

6. The centering device for the center of a welded ball according to claim 2, wherein: Chutes are respectively opened on the left and right sides of the top end of the base (21), and the lower left side of the left end of the connecting plate (224) is in sliding fit with the chutes on the left and right sides of the top end of the base (21).

7. A centering device for the center of a welded ball according to claim 2, characterized in that: The two groups of the positioning plates (225) are respectively arranged in fit with the front and rear ends of the welded ball (1).

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