Complete set of automatic clamping tool special for welding machining of dumbbell placing rack
By designing an automatic clamping fixture, the problems of high labor intensity and low efficiency in the welding process of dumbbell placement racks were solved, realizing automated welding and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-28
- Publication Date
- 2026-03-27
AI Technical Summary
The welding and processing of existing dumbbell racks relies on manual operation, resulting in high labor intensity and low efficiency.
Design an automatic clamping fixture that includes an upper frame clamping plate, a middle frame clamping plate, a lower frame clamping plate, a vertical clamping device, and a horizontal clamping device, and use a cylinder or hydraulic cylinder to drive the clamping device to achieve automatic clamping and welding.
Automated welding processes have been achieved, reducing labor intensity and improving production efficiency.
Smart Images

Figure CN121733145A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to a tool clamp, in particular to a complete automatic clamping tool special for welding processing of dumbbell placing rack. BACKGROUND
[0002] As shown in Figure 3 and Figure 4 , the dumbbell placing rack is composed of two mutually symmetrical upper rack bodies, a middle rack body and two mutually symmetrical lower rack bodies, as shown in Figure 5 and Figure 6 , the upper rack body is composed of an upper tube, an upper connecting plate and an upper fixed plate, one upper connecting plate is welded in the middle of the side of the upper tube, and two upper fixed plates are welded on the upper ends of the upper tube, as shown in Figure 7 and Figure 8 , the middle rack body is composed of a middle vertical square tube and a middle horizontal square tube, two middle horizontal square tubes are welded on the two ends of the middle vertical square tube, as shown in Figure 9 and Figure 10 , the lower rack body is composed of a lower tube and a lower connecting plate, one lower connecting plate is welded in the middle of the side of the lower tube. The existing welding processing method of the upper rack body, the middle rack body and the lower rack body is that workers manually draw lines, place, press and weld, the workers have high labor intensity, it is time-consuming and laborious, and the processing efficiency is low, therefore, it is a very meaningful thing to design an automatic clamping tool to improve production efficiency and quality, reduce labor intensity, save time and labor in welding processing. SUMMARY
[0003] The present application aims to provide a complete automatic clamping tool special for welding processing of dumbbell placing rack, which has simple and novel structure, practical function, can be automatically clamped and welded in complete sets, has low labor intensity and high production efficiency.
[0004] The technical solution adopted in this invention is: a complete set of automatic clamping fixtures specifically for welding dumbbell racks, including an upper frame clamping plate 1, a middle frame clamping plate 2, a lower frame clamping plate 3, a vertical clamping device 4, and a horizontal clamping device 5. The vertical clamping device 4 includes a vertical power cylinder and a vertical pressure plate. One end of the vertical pressure plate is connected to the piston rod of the vertical power cylinder, and the other end is equipped with a clamping column. The horizontal clamping device 5 includes a horizontal power cylinder and a horizontal pressure plate. The center of the horizontal pressure plate is connected to the piston rod of the horizontal power cylinder. The connection includes vertical and horizontal power cylinders, which can be pneumatic, hydraulic, or electric. A positioning block 11 for the upper tube is fixedly installed in the middle of the upper frame clamp plate 1. Upper fixing plate positioning blocks 12 are fixedly installed on the left and right sides of the middle, and upper tube side positioning blocks 13 are fixedly installed on the upper right side. Upper connecting plate positioning plates 14 are fixedly installed on the upper and lower sides of the middle. Positioning grooves are symmetrically arranged on the upper fixing plate positioning blocks 12, and inclined positioning blocks are arranged on the upper connecting plate positioning plates 14. Four vertical... The clamping devices 4 are installed around the upper frame fixture plate 1, and the two horizontal clamping devices 5 are installed on the upper connecting plate positioning plate 14. The middle vertical square tube positioning plate 21 is fixedly installed in the middle of the middle frame fixture plate 2, and the middle horizontal square tube positioning blocks 22 are fixedly installed on the left and top sides respectively. The middle frame fixture plate 2 is provided with two process square holes 23, and the middle vertical square tube positioning plate 21 is provided with positioning blocks. The two horizontal clamping devices 5 are installed on the left side of the middle frame fixture plate 2, and one horizontal clamping device 5 is installed on... On the right side of the middle frame clamp plate 2, a horizontal clamping device 5 is installed on the middle vertical square tube positioning plate 21. The lower frame clamp plate 3 has lower tube positioning blocks 31 fixedly installed on both sides of the middle, and lower tube side positioning blocks 32 fixedly installed on the right side. The lower connecting plate positioning plates 33 are fixedly installed on both sides of the middle. The lower connecting plate positioning plates 33 are provided with inclined positioning blocks. Two vertical clamping devices 4 are installed in the middle of the lower frame clamp plate 3, and two horizontal clamping devices 5 are installed on the lower connecting plate positioning plates 33.
[0005] A further improvement is that the upper frame clamp plate 1, the middle frame clamp plate 2, and the lower frame clamp plate 3 are sequentially installed on the frame 6.
[0006] Compared with the prior art, the present invention has the following advantages: simple and novel structure, practical function, automatic clamping, complete welding, low labor intensity, and high production efficiency. Attached Figure Description
[0007] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 2 for Figure 1 Left view, Figure 3 This is a structural diagram of a dumbbell rack. Figure 4 for Figure 3 Top view, Figure 5 This is a structural diagram of the dumbbell rack's upper frame. Figure 6 for Figure 5 Left view, Figure 7 This is a structural diagram of the frame in a dumbbell rack. Figure 8 for Figure 7 Left view, Figure 9 This is a structural diagram of the lower frame of the dumbbell rack. Figure 10 for Figure 9 The left view. Detailed Implementation
[0008] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more explicit definition of the scope of protection of the present invention.
[0009] like Figure 1 and Figure 2 As shown, a complete set of automatic clamping fixtures specifically designed for welding dumbbell racks includes an upper frame clamping plate 1, a middle frame clamping plate 2, a lower frame clamping plate 3, a vertical clamping device 4, and a horizontal clamping device 5. The upper frame clamping plate 1, middle frame clamping plate 2, and lower frame clamping plate 3 are rectangular plate-shaped components. The vertical clamping device 4 includes a vertical power cylinder and a vertical pressure plate. One end of the vertical pressure plate is connected to the piston rod of the vertical power cylinder, and the other end is fitted with a clamping column. The horizontal clamping device 5 includes a horizontal power cylinder and a horizontal pressure plate. The center of the horizontal pressure plate is connected to the piston rod of the horizontal power cylinder. The vertical and horizontal power cylinders are one of a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder. A top tube positioning block 11 is fixedly installed in the middle of the upper frame clamp plate 1. Top fixing plate positioning blocks 12 are fixedly installed on the left and right sides of the middle, and top tube side positioning blocks 13 are fixedly installed on the upper right sides. Top connecting plate positioning plates 14 are fixedly installed on the upper top and bottom sides of the middle. The top fixing plate positioning blocks 12 have symmetrically arranged positioning grooves, and the upper connecting plate positioning plates 14 have inclined positioning blocks. Four vertical clamps 4 are installed around the upper frame clamp plate 1, and two horizontal clamps 5 are installed on the upper connecting plate positioning plates 14, with their horizontal pressure plates facing the top tube positioning block 11. First, place the two top tubes... On the upper frame clamp plate 1, the upper tube positioning block 11 and the upper tube side positioning block 13 are respectively contacted and positioned. Then, four upper fixing plates are placed on the upper tube and contacted and positioned with the positioning grooves on the upper fixing plate positioning block 12. The vertical pressure plates of the four vertical clamping devices 4 contact the four upper fixing plates respectively, clamping the upper tube and the upper fixing plates. Finally, two upper connecting plates are placed on the upper connecting plate positioning plate 14 respectively and contacted and positioned with the inclined positioning blocks on the upper connecting plate positioning plate 14. The horizontal pressure plates of the two horizontal clamping devices 5 contact the two upper connecting plates respectively, clamping the upper connecting plates. Two mutually symmetrical upper frames can be clamped and welded at the same time. A central vertical square tube positioning plate 21 is fixedly installed in the middle of the central frame fixture plate 2. A central horizontal square tube positioning block 22 is fixedly installed on the left and top sides respectively. Two process square holes 23 are provided on the central frame fixture plate 2. Positioning blocks are provided on the central vertical square tube positioning plate 21. Two horizontal clamping devices 5 are respectively installed on the left sides of the central frame fixture plate 2, with their horizontal pressure plates facing the central horizontal square tube positioning block 22. One horizontal clamping device 5 is installed in the middle of the right side of the central frame fixture plate 2, with its horizontal pressure plate facing the central horizontal square tube positioning block 22. One horizontal clamping device 5 is installed on the central vertical square tube positioning plate 21, with its horizontal pressure plate facing the positioning block on the central vertical square tube positioning plate 21. First, a central horizontal square tube is placed on the left side of the central frame fixture plate 2, corresponding to the central horizontal square tube positioning blocks 22 on the left and top sides of the central frame fixture plate 2. 2. Contact positioning: The horizontal pressure plates of the two horizontal clamping devices 5 on the left side of the middle frame fixture plate 2 contact the middle horizontal square tube, clamping it. Then, the middle vertical square tube is placed on the middle vertical square tube positioning plate 21, contacting and positioning with the positioning block on the middle vertical square tube positioning plate 21 and the middle horizontal square tube on the left. The horizontal pressure plate of the horizontal clamping device 5 on the middle vertical square tube positioning plate 21 contacts the middle vertical square tube, clamping it. Finally, another middle horizontal square tube is placed on the right side of the middle frame fixture plate 2, contacting and positioning with the middle horizontal square tube positioning block 22 on the middle frame fixture plate 2 and the middle vertical tube. The horizontal pressure plate of the horizontal clamping device 5 in the middle right side of the middle frame fixture plate 2 contacts the middle horizontal square tube, clamping it. The welding joint between the middle vertical square tube and the middle horizontal square tube is located above the process square hole 23, making welding convenient, complete, and firm. Lower tube positioning blocks 31 are fixedly installed on both sides of the middle of the lower frame clamp plate 3, and a lower tube side positioning block 32 is fixedly installed on the right side. Lower connecting plate positioning plates 33 are fixedly installed on both sides of the middle. An inclined positioning block is provided on the lower connecting plate positioning plate 33. Two vertical clamps 4 are installed in the middle of the lower frame clamp plate 3, and two horizontal clamps 5 are installed on the lower connecting plate positioning plate 33, with their horizontal pressure plates facing the lower tube positioning blocks 31. First, two lower tubes are placed on the lower frame clamp plate 3, contacting and positioning with the lower tube positioning blocks 31 and lower tube side positioning blocks 32 respectively. The vertical pressure plates of the two vertical clamps 4 contact the two lower tubes respectively, clamping them. Then, two lower connecting plates are placed on the lower connecting plate positioning plate 33, contacting and positioning with the inclined positioning blocks on the lower connecting plate positioning plate 33. The horizontal pressure plates of the two horizontal clamps 5 contact the two lower connecting plates respectively, clamping them. Two symmetrical lower frames can be clamped and welded simultaneously. The upper frame clamp plate 1, the middle frame clamp plate 2, and the lower frame clamp plate 3 are sequentially installed on the frame 6. Two mutually symmetrical upper frames, one middle frame, and two mutually symmetrical lower frames can be clamped and welded at the same time. The complete welding process is conducive to the efficient assembly and production of dumbbell placement racks.
[0010] Not limited to this, any variations or substitutions conceived without inventive effort should be included within the scope of protection of this invention. Therefore, the scope of protection of this invention should be determined by the scope defined in the claims.
Claims
1. A complete automatic clamping tooling exclusively for welding processing of dumbbell placement racks, characterized in that, The utility model provides a kind of frame body clamp plate, including upper frame body clamp plate (1), middle frame body clamp plate (2), lower frame body clamp plate (3), vertical presser (4) and horizontal presser (5), vertical presser (4) includes vertical power cylinder and vertical pressing plate, one end of vertical pressing plate is connected with the piston rod of vertical power cylinder, and the other end is installed with press column, horizontal presser (5) includes horizontal power cylinder and horizontal pressing plate, the center of horizontal pressing plate is connected with the piston rod of horizontal power cylinder, vertical power cylinder, horizontal power cylinder are one of cylinder, oil cylinder or electric cylinder, upper frame body clamp plate (1) is fixedly installed with upper tube middle positioning block (11) in middle, and upper fixed plate positioning block (12) is fixedly installed with in left and right sides respectively, upper tube side positioning block (13) is fixedly installed with in right side upper and lower sides respectively, upper connecting plate positioning plate (14) is fixedly installed with in middle upper and lower sides respectively, positioning recess is symmetrically provided on upper fixed plate positioning block (12), and inclined positioning block is provided on upper connecting plate positioning plate (14), four vertical pressers (4) are installed in four around upper frame body clamp plate (1) respectively, two horizontal pressers (5) are installed on upper connecting plate positioning plate (14) respectively, middle frame body clamp plate (2) is fixedly installed with middle vertical tube positioning plate (21) in middle, and middle horizontal tube positioning block (22) is fixedly installed with in left side and upper side respectively, two process square holes (23) are provided on middle frame body clamp plate (2), positioning block is provided on middle vertical tube positioning plate (21), two horizontal pressers (5) are installed in left side two sides of middle frame body clamp plate (2) respectively, a horizontal presser (5) is installed in right side middle of middle frame body clamp plate (2), a horizontal presser (5) is installed on middle vertical tube positioning plate (21), lower frame body clamp plate (3) is fixedly installed with lower tube middle positioning block (31) in middle two sides, lower tube side positioning block (32) is fixedly installed with in right side, lower connecting plate positioning plate (33) is fixedly installed with in middle two sides respectively, inclined positioning block is provided on lower connecting plate positioning plate (33), two vertical pressers (4) are installed in middle of lower frame body clamp plate (3), two horizontal pressers (5) are installed on lower connecting plate positioning plate (33) respectively.
2. A complete automatic clamping tooling exclusively for welding process of dumbbell holder placement rack according to claim 1, characterized in that, Upper frame body clamp plate (1), middle frame body clamp plate (2), lower frame body clamp plate (3) are installed on frame (6) in sequence.