Metal rod welding device for fitness equipment production

Abstract

The invention relates to the technical field of welding, in particular to a metal rod welding device for fitness equipment production, which comprises a workbench, a clamping assembly mounted on the workbench and used for clamping a weight piece, and a fixing assembly mounted on the workbench and used for fixing the weight piece, and the clamping assembly can move relative to the workbench. The fixing device is used for fixing the barbell rod; according to the metal rod welding device for fitness equipment production, the supporting frame is arranged between the clamping assembly and the fixing assembly, meanwhile, the polishing assembly is arranged on the supporting frame, and therefore when a weight piece and a metal barbell rod are welded, one end of the metal barbell rod can be polished in advance; according to the barbell rod friction welding device, the effect that the welding position of the barbell rod and the weight piece can be guaranteed to be flat before friction welding is conducted on the barbell rod is guaranteed, enough pressure can be applied when the weight piece conducts rotating friction welding along one end of the barbell rod, and therefore the barbell welding strength is guaranteed, and the defect of local welding cracks is overcome.

Description

Technical Field

[0001] The invention relates to the technical field of welding, in particular to a metal rod welding device for producing fitness equipment. Background Art

[0002] A barbell is a core training exercise equipment and is also used for weightlifting. Barbell exercise is a type of weight training, which is a training that uses barbell training equipment to increase muscle strength. Barbells can also be used for core training to improve overall coordination. It usually consists of a long bar with spherical weight plates or locks at both ends to fix the weight. A regular barbell bar is sometimes called a "straight bar" and is mainly composed of two weight plates and a barbell bar.

[0003] Friction welding is an efficient and high-quality welding method. Friction welding has higher quality than traditional fusion welding and can achieve the same strength of the weld as the base material. It melts and combines two metal parts together through the heat energy generated by friction.

[0004] Existing fitness equipment such as barbells are produced by friction welding. One end of the weight plate is clamped and fixed by a clamping assembly, and the barbell bar is fixed on the workbench by a fixing assembly. Then, the clamping assembly is rotated and moved along the barbell bar to achieve friction melting welding. However, during the welding process of the existing barbell rod, one end of the barbell rod in production passes through the cutting process and then enters the welding process. Therefore, the surface of the welded end of the barbell rod after the initial cutting is uneven, which causes the weight plate to move relative to the workbench and rotate relative to one end of the slender end of the barbell rod. It is impossible to apply sufficient pressure to one end of the barbell rod, which leads to unstable friction welding and even defects such as local weld cracks. For this reason, we propose a metal rod welding device for fitness equipment production. Summary of the invention

[0005] The object of the present invention is to provide a metal rod welding device for producing fitness equipment to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a metal rod welding device for fitness equipment production, comprising a workbench, a clamping assembly mounted on the workbench for clamping a weight plate, the clamping assembly being movable relative to the workbench, and further comprising: A fixing assembly, which is installed on the workbench and is used to fix the barbell bar; A support frame, the support frame is slidably connected to the workbench; An adjusting component, which is located on the workbench and is used to adjust the position of the support frame; A welding and grinding assembly is installed on a support frame and is used for grinding and adjusting one end of a barbell rod before friction welding.

[0007] Wherein, the welding and grinding assembly comprises a fixing ring fixedly mounted on the support frame, and a vent is arranged on the fixing ring, and the vent is used to cool one end of the metal barbell rod after friction welding; A support ring, one end of which is rotatably connected to the inner ring of the fixed ring, and the support ring is located on a side of the fixed ring away from the clamping assembly, and a plurality of processing assemblies for grinding one end of the barbell rod before friction welding are installed on the support ring; A positioning assembly, the positioning assembly is mounted on the support ring and is used to position the plurality of processing assemblies; An anti-deviation component, which is mounted on the support ring and is used to limit the positioning component; The rotating assembly is installed between the fixing ring and the supporting ring, and is used to drive the supporting ring. Through the provided welding and grinding assembly, one end of the barbell rod is ground before friction welding.

[0008] Among them, the ventilation piece includes a plurality of ventilation holes arranged in the inner circle of the fixed ring, the inner wall of the fixed ring is provided with a cavity connected to the plurality of ventilation holes, the top of the fixed ring is connected with an air intake pipe, and the air intake pipe is connected to an external air supply device, and through the ventilation piece provided, the effect of cooling one end of the barbell after friction welding is achieved.

[0009] The processing assembly includes a plurality of connection frames arranged on the support ring, the positioning assembly is used to position the plurality of connection frames, one side of the connection frame is rotatably connected to a rotating drum via a rotating shaft, and a limiting assembly for limiting the rotating drum is installed on the connection frame; A diamond grinding wheel for grinding one end of the barbell bar before friction welding is installed on the side of the rotating drum away from the connecting frame. Through the processing assembly provided, the grinding process of one end of the metal barbell bar is achieved.

[0010] Wherein, the limit assembly comprises two fixing plates fixedly mounted on one side of the connection frame, one end of the two fixing plates is rotatably connected to a driving screw, and one end of the driving screw located outside the connection frame is fixedly mounted with a gripping plate; The outer side of the driving screw is threadedly connected to a limit plate, and the limit plate is L-shaped. A plurality of clamping grooves are arranged on the outer side of the rotating drum, and one end of the limit plate is clamped in the clamping groove. The limit assembly is provided to limit the rotating drum.

[0011] Wherein, the support ring is provided with a plurality of limiting grooves for limiting one end of the connection frame; The positioning assembly comprises a gear ring rotatably connected to the support ring, the inner ring of the gear ring is fixedly mounted with a plurality of internal teeth, and the outer sides of the plurality of internal teeth are meshedly connected with a rotating gear, and the rotating gear is rotatably connected to the support ring via a connecting shaft provided thereon; The gear width of the rotating gear is greater than the width of the gear ring; The outer side of the rotating gear is meshed with a gear bar, and the gear bar is fixedly installed on one side of the connecting frame, and the positions of the multiple processing components are positioned by means of a positioning component.

[0012] Wherein, the anti-deviation assembly comprises a positioning frame fixedly mounted on the outside of the support ring, a rotating screw is threadedly connected to the positioning frame, and a handle is fixedly connected to one end of the rotating screw located outside the positioning frame; One end of the rotating screw is rotatably connected to a fixed block, and the fixed block is slidably connected to the positioning frame. One end of the fixed block is fixedly connected to two latch teeth. The outer side of the gear ring is provided with a plurality of external teeth meshing with the latch teeth. The gear ring is positioned by an anti-deviating component.

[0013] The rotating assembly comprises a support seat fixedly mounted on a fixed ring, a worm is rotatably connected to the support seat, a connecting block is mounted on one end of the worm, a connecting groove is arranged at the bottom of the connecting block, and a rotating member for rotating the connecting block is mounted on the support frame; The outer side of the worm is meshingly connected with a worm wheel, and the inner ring of the worm wheel is provided with a through hole. The inner ring of the worm wheel is fixedly connected to the outer wall of the support ring, and the support ring is driven by a rotating component.

[0014] Among them, the rotating part includes an extension plate installed on the support frame, an electric push rod is fixedly installed on the extension plate, a protective shell is fixedly installed on the output end of the electric push rod, a rotating motor is fixedly installed on the inner wall of the protective shell, and the output end of the rotating motor passes through the protective shell and is fixedly connected with a positioning block that cooperates with the connecting groove, and the worm is driven by the rotating part.

[0015] Wherein, the workbench is provided with a moving groove at a position corresponding to the adjusting component, the adjusting component comprises a positioning screw rotatably connected to the moving groove, and a servo motor for driving the positioning screw is installed at one end of the workbench; A moving block is installed at the bottom of the support frame, and the moving block is slidably connected to the moving groove. The moving block is threadedly connected to the positioning screw rod. Through the provided adjustment component, the position of the support frame can be adjusted.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. When the present invention is in use, by providing a support frame between the clamping assembly and the fixing assembly and a grinding assembly on the support frame, one end of the metal barbell bar can be ground in advance when welding the weight plate to the metal barbell bar, thereby ensuring that the welding portion between the barbell bar and the weight plate is smooth before friction welding, and sufficient pressure can be applied when the weight plate is rotated along one end of the barbell bar for friction welding, thereby ensuring the strength of the barbell welding and preventing the defect of local welding cracks.

[0017] 2. When the present invention is in use, the fixing ring is provided, which can not only support the support ring, but also the vent provided thereon can cool the welding position after welding between the weight plate and the barbell bar.

[0018] 3. When the present invention is in use, the multiple rotating drums can not only support the diamond grinding wheel thereon when grinding one end of the barbell bar, but also ensure the auxiliary support of one end of the barbell bar when welding between the weight plate and the metal barbell bar, thereby preventing the barbell bar from shaking too much due to the friction of the weight plate, thereby ensuring the welding accuracy between the barbell bar and the weight plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure of the middle A area; Figure 3 It is an overall side view of the present invention; Figure 4 This is a schematic diagram of the support structure of the present invention; Figure 5 This is a schematic diagram of the support ring structure of the present invention; Figure 6 It is a schematic diagram of the side view structure of the connecting block of the present invention; Figure 7 It is a schematic diagram of the worm gear structure of the present invention; Figure 8 This is a schematic diagram of the support ring structure of the present invention; Fig. 9 For the present invention Figure 8 Schematic diagram of the enlarged structure of the middle B area; Fig.10 This is a schematic diagram of the structure of the anti-deviating component of the present invention; Fig.11 For the present invention Fig.10 Schematic diagram of the enlarged structure of the middle C area; Fig.12 It is a schematic diagram of the structure of the rotary drum of the present invention; Fig.13 This is a structural diagram of Embodiment 2 of the present invention; Fig.14 For the present invention Fig.13 Schematic diagram of the enlarged structure of area D in the middle.

[0020] In the figure: 1- workbench; 11- clamping assembly; 2- fixing assembly; 3- support frame; 4- adjustment assembly; 41- positioning screw; 42- servo motor; 43- moving block; 5- welding and grinding assembly; 51- fixing ring; 511- vent hole; 52- vent piece; 521- air inlet pipe; 53- support ring; 531- limit groove; 54- processing assembly; 541- connection frame; 542- rotating drum; 5421- clamping groove; 543- diamond grinding wheel; 55- positioning assembly; 551- gear ring; 552- inner gear; 553- rotating gear; 554- gear bar; 56- anti-deviation Assembly; 561-positioning frame; 562-rotating screw; 563-handle; 564-fixed block; 565-grip; 567-external tooth; 57-rotating assembly; 571-support seat; 572-worm; 573-connecting block; 574-worm wheel; 6-limiting assembly; 61-fixed plate; 62-driving screw; 63-grip plate; 64-limiting plate; 65-limiting frame; 66-telescopic mechanism; 67-rotating motor; 68-synchronous gear; 7-moving slot; 8-rotating part; 81-extension plate; 82-electric push rod; 83-protective shell; 84-rotating motor; 85-positioning block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-12 , Embodiment 1 A metal rod welding device for fitness equipment production, comprising a workbench 1, a clamping assembly 11 mounted on the workbench 1 for clamping a weight plate, the clamping assembly 11 can move relative to the workbench 1, the clamping assembly 11 is an existing clamping mechanism, and can clamp and fix weight plates of different sizes, and the clamping assembly 11 can move along the workbench 1, and also includes: A fixing assembly 2, which is installed on the workbench 1 and is used to fix the barbell bar. The fixing assembly 2 is a high-temperature resistant and high-strength fixing platform. Two hydraulic cylinders are installed on the fixing platform. A clamping block is installed at the output end of the hydraulic cylinder. Through the operation of the two hydraulic cylinders, the two clamping blocks move toward each other to achieve the function of clamping and fixing the barbell bar. At the same time, for barbell bars of different lengths, multiple groups of fixing assemblies 2 can be set to achieve stable support for the barbell bar. A support frame 3, the support frame 3 is slidably connected to the workbench 1; An adjusting component 4, which is located on the workbench 1 and is used to adjust the position of the supporting frame 3; The workbench 1 is provided with a moving groove 7 at a position corresponding to the adjusting component 4. The adjusting component 4 includes a positioning screw 41 rotatably connected to the moving groove 7. A servo motor 42 for driving the positioning screw 41 is installed at one end of the workbench 1. A moving block 43 is installed at the bottom of the support frame 3, and the moving block 43 is slidably connected to the moving groove 7, and the moving block 43 is threadedly connected to the driving screw 62; The servo motor 42 is operated to cause the positioning screw 41 to rotate relative to the inside of the movable groove 7. When the positioning screw 41 rotates, a driving force is provided to the movable block 43. Under the limiting action of the movable groove 7, the movable block 43 further drives the support frame 3 to move relative to the clamping component 11 and the fixed component 2.

[0023] A welding and grinding assembly 5, which is mounted on the support frame 3 and is used to grind and adjust one end of the barbell before friction welding. The welding and grinding assembly 5 includes a fixing ring 51 fixedly mounted on the support frame 3, and a vent 52 is provided on the fixing ring 51. The vent 52 is used to cool one end of the metal barbell after friction welding. The vent 52 includes a plurality of vent holes 511 provided on the inner ring of the fixing ring 51, and a cavity connected to the plurality of vent holes 511 is provided on the inner wall of the fixing ring 51. An air inlet pipe 521 is connected to the top of the fixing ring 51, and the air inlet pipe 521 is connected to an external air supply device; In the present invention, the vent 52 is provided, so that after the weight plate and one end of the barbell bar are friction welded, the one end of the barbell bar after welding can be evenly and quickly cooled; A support ring 53, one end of which is rotatably connected to the inner ring of the fixing ring 51, and the support ring 53 is located on a side of the fixing ring 51 away from the clamping assembly 11, and a plurality of processing assemblies 54 for grinding one end of the barbell before friction welding are installed on the support ring 53; A positioning assembly 55, the positioning assembly 55 is installed on the support ring 53 and is used to position the positions of the plurality of processing assemblies 54; The processing assembly 54 includes a plurality of connection frames 541 arranged on the support ring 53, and the positioning assembly 55 is used to position the plurality of connection frames 541. A rotating drum 542 is rotatably connected to one side of the connection frame 541 through a rotating shaft, and a limiting assembly 6 for limiting the rotating drum 542 is installed on the connection frame 541; A diamond grinding wheel 543 for grinding one end of the barbell bar before friction welding is installed on the side of the rotating drum 542 away from the connecting frame 541, and the diamond grinding wheel 543 is detachably connected to the rotating drum 542. In the present invention, the diamond grinding wheel 543 is only provided on one side, and it contacts one end of the barbell bar through the grinding surface to achieve the function of rotationally grinding the barbell bar.

[0024] The limiting assembly 6 includes two fixing plates 61 fixedly mounted on one side of the connection frame 541, one end of the two fixing plates 61 is rotatably connected to a driving screw 62, and one end of the driving screw 62 located outside the connection frame 541 is fixedly mounted with a gripping plate 63; The outer side of the driving screw 62 is threadedly connected to the limit plate 64, and the limit plate 64 is L-shaped. A plurality of clamping grooves 5421 are provided on the outer side of the rotating cylinder 542, and one end of the limit plate 64 is clamped in the clamping groove 5421. By rotating the grip plate 63, the driving screw 62 is further rotated. While the driving screw 62 rotates, the limit plate 64 is provided with a driving force. Because the limit plate 64 is further moved along the clamping groove 5421 under the limiting action of the connecting frame 541, the clamping and limiting effect of the rotating cylinder 542 is achieved, and at the same time, the diamond grinding wheel 543 is prevented from rotating when grinding one end of the barbell rod. At the same time, the position of the diamond grinding wheel 543 can be adjusted, and it can be adjusted according to the wear state of the diamond grinding wheel 543 after each grinding is completed, so that it can fully grind the barbell rod.

[0025] The support ring 53 is provided with a plurality of limiting grooves 531 for limiting one end of the connection frame 541, and one end of the connection frame 541 is slidably connected inside the limiting groove 531; The positioning assembly 55 includes a gear ring 551 rotatably connected to the support ring 53, a plurality of internal teeth 552 are fixedly mounted on the inner ring of the gear ring 551, and a rotating gear 553 is meshedly connected to the outer side of the plurality of internal teeth 552, and the rotating gear 553 is rotatably connected to the support ring 53 via a connecting shaft provided thereon; The gear width of the rotating gear 553 is greater than the width of the gear ring 551, so that when the gear rotates, the rotating gear 553 can be driven to rotate through the multiple internal teeth 552 thereon, and when the rotating gear 553 rotates, the gear bar 554 is driven to move relatively along the support ring 53; The outer side of the rotating gear 553 is meshedly connected with a gear bar 554 , and the gear bar 554 is fixedly installed on one side of the connecting frame 541 .

[0026] The anti-deviation component 56 is installed on the support ring 53 and is used to limit the positioning component 55; the anti-deviation component 56 includes a positioning frame 561 fixedly installed on the outside of the support ring 53, and a rotating screw 562 is threadedly connected to the positioning frame 561. The end of the rotating screw 562 located outside the positioning frame 561 is fixedly connected to a handle 563; One end of the rotating screw rod 562 is rotatably connected to a fixed block 564, and the fixed block 564 is slidably connected to the positioning frame 561. One end of the fixed block 564 is fixedly connected to two latch teeth 565. The outer side of the gear ring 551 is provided with a plurality of external teeth 567 meshing with the latch teeth 565. When the gear ring 551 is adjusted, the handle 563 is rotated to rotate the rotating screw rod 562 relative to the positioning frame 561. When the rotating screw rod 562 rotates, a driving force is provided to the fixed block 564. Due to the limiting effect of the positioning frame 561, the fixed block 564 further moves along the direction of the gear ring 551 until the two latch teeth 565 thereon mesh and engage with the external teeth 567, thereby fixing the gear ring 551 and further positioning the position of the diamond grinding wheel 543.

[0027] The rotating assembly 57 is installed between the fixed ring 51 and the support ring 53, and is used to drive the support ring 53. The rotating assembly 57 includes a support seat 571 fixedly installed on the fixed ring 51, and a worm 572 is rotatably connected to the support seat 571. A connecting block 573 is installed at one end of the worm 572, and a connecting groove is provided at the bottom of the connecting block 573. A rotating member 8 for rotating the connecting block 573 is installed on the support frame 3; The outer side of the worm 572 is meshedly connected with a worm wheel 574, and the inner ring of the worm wheel 574 is provided with a through hole. The inner ring of the worm wheel 574 is fixedly connected to the outer wall of the support ring 53, and the support ring 53 is self-locked by the worm wheel 574 and the worm 572.

[0028] The rotating member 8 includes an extension plate 81 installed on the support frame 3, on which an electric push rod 82 is fixedly installed, a protective shell 83 is fixedly installed at the output end of the electric push rod 82, a rotating motor 84 is fixedly installed on the inner wall of the protective shell 83, and the output end of the rotating motor 84 passes through the protective shell 83 and is fixedly connected with a positioning block 85 that cooperates with the connecting groove. In the present invention, the connecting groove is set as a cross groove, and the positioning block 85 is set to a cross shape. At the same time, this setting prevents excessive heat from occurring at one end of the weight plate and the barbell bar when friction welding is performed, thereby affecting the operation of the rotating motor 84. Therefore, when the weight plate and the barbell bar are melt-welded, the rotating motor 84 deviates from the support ring 53, which can protect the rotating motor 84.

[0029] Specific implementation process: When friction welding is performed on a barbell, first the clamping assembly 11 clamps and fixes the weight plate, and at the same time the fixing assembly 2 clamps and fixes the barbell bar, so that the center of the barbell bar and the weight plate are on the same straight line; Subsequently, the support frame 3 is driven by the adjustment assembly 4 to drive the support ring 53 to move along one end of the barbell rod until one side of the plurality of diamond grinding wheels 543 contacts one end of the barbell rod; Subsequently, the two latching teeth 565 of the fixing block 564 are disengaged from the outer teeth 567 by rotating the anti-deviating assembly 56, and the outer teeth 567 are manually rotated. When the outer teeth 567 rotate, the gear ring 551 is driven to rotate synchronously. When the gear ring 551 rotates, the multiple inner teeth 552 inside it are driven to rotate relative to the multiple rotating gears 553. The rotating gears 553 drive the connecting frame 541 to move relative to the supporting ring 53 through the gear bar 554 until the multiple connecting frames 541 move to a position where the multiple diamond grinding wheels 543 can fully contact one end of the barbell bar, and the rotation of the multiple diamond grinding wheels 543 can fully grind one end of the barbell bar. Subsequently, the electric push rod 82 operates, which moves the cross-shaped positioning block 85 along the connecting groove. When the positioning block 85 contacts the connecting groove and the connecting groove and the positioning block 85 are offset, the rotating motor 84 rotates slowly until the positioning block 85 can be stably inserted into the connecting groove. The rotating motor 84 continues to operate, so that the fastener drives the connecting block 573 to rotate, and further rotates the worm 572. The worm 572 drives the support ring 53 to rotate through the turbine, so that the multiple diamond grinding wheels 543 rotate and grind around one end of the barbell until the grinding is completed. Then, the multiple diamond grinding wheels 543 deviate from one end of the barbell rod, and under the support of the support ring 53, the multiple rotating cylinders 542 are manually adjusted to the outside of the barbell rod, and the barbell rod is clamped at the same time. Subsequently, the clamping assembly 11 drives the weight plate to rotate and move along one end of the barbell rod to achieve friction welding. In the process of the weight plate being frictionally pushed along the barbell rod, the multiple rotating cylinders 542 move synchronously along the direction of the fixing assembly 2 with the movement of the support frame 3, and the barbell rod is clamped and fixed continuously during friction welding, thereby effectively preventing one end of the barbell rod from vibrating too much and affecting the accuracy of friction welding. After the friction welding between the weight plate and one end of the barbell bar is completed, the ventilation pipe injects external gas, and the gas overflows from the plurality of ventilation holes 511, thereby achieving the effect of rapid cooling of the friction welding point.

[0030] See also Figure 13-14 , Embodiment 2 Embodiment 2 is another implementation of the position limiting assembly 6 in Embodiment 1, specifically: the position limiting assembly 6 includes a position limiting frame 65 fixedly mounted on the support ring 53, a telescopic mechanism 66 is mounted on the position limiting frame 65, a rotating motor 67 is mounted on the telescopic mechanism 66, a synchronous gear 68 is fixedly connected to the output end of the rotating motor 67, and the synchronous gear 68 is meshedly connected with a plurality of external teeth 567, so that when it is used, when it is necessary to adjust the positions of the plurality of diamond grinding wheels 543, the telescopic mechanism 66 is operated to further make the synchronous gear 68 contact with the external teeth 567, and when the rotating motor 67 is in use, the synchronous gear 68 is meshedly connected with the external teeth 567. When the machine 67 is running, the gear rotates along with the rotation of the outer teeth 567, thereby driving the inner teeth 552 of its inner ring to rotate relative to the multiple rotating gears 553. When the rotating gear 553 rotates, it drives the connecting frame 541 to move relative to the support ring 53, so as to adjust the position of the diamond grinding wheel 543, so that the diamond grinding wheel 543 can be automatically adjusted to a state for grinding one end of the barbell bar. At the same time, the multiple rotating cylinders 542 can also be automatically adjusted to clamp and fix the outer wall of the barbell bar during the friction welding process.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal rod welding device for producing fitness equipment, comprising a workbench (1), a clamping assembly (11) mounted on the workbench (1) for clamping a weight plate, wherein the clamping assembly (11) is movable relative to the workbench (1), and characterized in that: Also included are: A fixing assembly (2), wherein the fixing assembly (2) is mounted on the workbench (1) and is used to fix the barbell bar; A support frame (3), the support frame (3) being slidably connected to the workbench (1); An adjustment component (4), the adjustment component (4) being located on the workbench (1) and being used to adjust the position of the support frame (3); A welding and grinding assembly (5) is mounted on the support frame (3) and is used to grind and adjust one end of a barbell rod before friction welding.

2. A metal rod welding device for fitness equipment production according to claim 1, characterized in that: The welding and grinding assembly (5) comprises a fixing ring (51) fixedly mounted on the support frame (3), the fixing ring (51) being provided with a vent (52), the vent (52) being used to cool one end of the metal barbell rod after friction welding; A support ring (53), one end of the support ring (53) being rotatably connected to the inner ring of the fixing ring (51), and the support ring (53) being located on a side of the fixing ring (51) away from the clamping assembly (11), and a plurality of processing assemblies (54) for grinding one end of the barbell rod before friction welding are mounted on the support ring (53); a positioning assembly (55), the positioning assembly (55) being mounted on the support ring (53) and being used to position the plurality of processing assemblies (54); an anti-deviation assembly (56), the anti-deviation assembly (56) being mounted on the support ring (53) and being used to limit the positioning assembly (55); A rotating assembly (57), wherein the rotating assembly (57) is installed between the fixing ring (51) and the supporting ring (53), and is used to drive the supporting ring (53).

3. A metal rod welding device for fitness equipment production according to claim 2, characterized in that: The vent (52) comprises a plurality of vent holes (511) arranged on the inner ring of the fixing ring (51); a cavity communicating with the plurality of vent holes (511) is arranged on the inner wall of the fixing ring (51); an air intake pipe (521) is connected to the top of the fixing ring (51); and the air intake pipe (521) is connected to an external air supply device.

4. A metal rod welding device for fitness equipment production according to claim 2, characterized in that: The processing assembly (54) comprises a plurality of connection frames (541) arranged on a support ring (53); the positioning assembly (55) is used to position the plurality of connection frames (541); one side of the connection frame (541) is rotatably connected to a rotating drum (542) via a rotating shaft; a limiting assembly (6) for limiting the position of the rotating drum (542) is installed on the connection frame (541); A diamond grinding wheel (543) for grinding one end of the barbell rod before friction welding is installed on a side of the rotating cylinder (542) away from the connecting frame (541).

5. A metal rod welding device for fitness equipment production according to claim 4, characterized in that: The limiting assembly (6) comprises two fixing plates (61) fixedly mounted on one side of the connecting frame (541), one end of the two fixing plates (61) being rotatably connected to a driving screw rod (62), and one end of the driving screw rod (62) located outside the connecting frame (541) being fixedly mounted to a gripping plate (63); The outer side of the driving screw rod (62) is threadedly connected to a limit plate (64), and the limit plate (64) is L-shaped. The outer side of the rotating cylinder (542) is provided with a plurality of clamping grooves (5421), and one end of the limit plate (64) is clamped in the clamping groove (5421).

6. A metal rod welding device for producing fitness equipment according to claim 2, characterized in that: The support ring (53) is provided with a plurality of limiting grooves (531) for limiting one end of the connection frame (541); The positioning assembly (55) comprises a gear ring (551) rotatably connected to the support ring (53); a plurality of internal teeth (552) are fixedly mounted on the inner ring of the gear ring (551); and a rotating gear (553) is meshingly connected to the outer side of the plurality of internal teeth (552); and the rotating gear (553) is rotatably connected to the support ring (53) via a connecting shaft provided thereon; The gear width of the rotating gear (553) is greater than the width of the gear ring (551); The outer side of the rotating gear (553) is meshedly connected with a gear bar (554), and the gear bar (554) is fixedly mounted on one side of the connecting frame (541).

7. A metal rod welding device for producing fitness equipment according to claim 6, characterized in that: The anti-deviation component (56) comprises a positioning frame (561) fixedly mounted on the outside of the support ring (53); a rotating screw rod (562) is threadedly connected to the positioning frame (561); and a handle (563) is fixedly connected to one end of the rotating screw rod (562) located outside the positioning frame (561); One end of the rotating screw rod (562) is rotatably connected to a fixed block (564), and the fixed block (564) is slidably connected to the positioning frame (561). One end of the fixed block (564) is fixedly connected to two latching teeth (565), and the outer side of the gear ring (551) is provided with a plurality of external teeth (567) meshing with the latching teeth (565).

8. The metal rod welding device for producing fitness equipment according to claim 2, characterized in that: The rotating assembly (57) comprises a support seat (571) fixedly mounted on the fixing ring (51); a worm (572) is rotatably connected to the support seat (571); a connecting block (573) is mounted on one end of the worm (572); a connecting groove is provided at the bottom of the connecting block (573); and a rotating member (8) for rotating the connecting block (573) is mounted on the supporting frame (3); The outer side of the worm (572) is meshingly connected with a worm wheel (574), and the inner ring of the worm wheel (574) is provided with a through hole, and the inner ring of the worm wheel (574) is fixedly connected to the outer wall of the support ring (53).

9. A metal rod welding device for producing fitness equipment according to claim 8, characterized in that: The rotating member (8) comprises an extension plate (81) mounted on the support frame (3); an electric push rod (82) is fixedly mounted on the extension plate (81); a protective shell (83) is fixedly mounted on the output end of the electric push rod (82); a rotating motor (84) is fixedly mounted on the inner wall of the protective shell (83); and a positioning block (85) matching the connecting groove is fixedly connected to the output end of the rotating motor (84) through the protective shell (83).

10. The metal rod welding device for fitness equipment production according to claim 1, characterized in that: The workbench (1) is provided with a movable groove (7) at a position corresponding to the adjustment component (4); the adjustment component (4) comprises a positioning screw (41) rotatably connected to the movable groove (7); and a servo motor (42) for driving the positioning screw (41) is installed at one end of the workbench (1); A moving block (43) is installed at the bottom of the support frame (3), and the moving block (43) is slidably connected to the moving groove (7), and the moving block (43) is threadedly connected to the positioning screw rod (41).

Images