Rack welding equipment stable in welding

Abstract

Sliding rails are arranged on the two sides of a workbench and slidably connected with a support, a first motor and a second motor are arranged at the top end of the support, the output end of the first motor is connected with a clamping sliding sleeve, the output end of the second motor is connected with a transmission gear, and a steering transmission rod is arranged on the upper surface of the support. A partition plate is arranged on the front side of the top end of the support and penetrates through the threaded sleeve and the steering transmission rod, a shell is fixed to the front end of the steering transmission rod, gear sliding sleeves are arranged on the two sides in the shell, gears in the middle of the gear sliding sleeves are meshed with the threaded sleeve, and clamping jaws are symmetrically arranged on the two sides of the gear sliding sleeves. Multi-dimensional clamping force adjustment is achieved through double-motor driving, the multi-stage self-adaptive clamping jaw is dynamically attached to a workpiece through sliding and rotating fit between the semicircular blocks, and the welding stability and the welding seam forming quality are improved in combination with a buffering system composed of the damping balls and the rubber belts on the lower surface of the workbench.

Description

A frame welding device with stable welding performance Technical Field

[0001] This invention relates to the field of welding technology, and in particular to a frame welding device that provides stable welding. Background Technology

[0002] In fields such as machinery manufacturing and automotive industry, the welding quality of the frame, as a supporting structure, directly affects the overall performance and safety stability of the equipment. Traditional welding equipment relies heavily on manual operation, which is inefficient and greatly affected by the welder's skill level, making it difficult to guarantee consistent welding precision. With the increasing demand for automated production, higher requirements are placed on the stability and intelligence of welding equipment.

[0003] Existing frame welding equipment generally suffers from unreasonable clamping mechanism design, such as uneven clamping force distribution or a single clamping method, resulting in insecure workpiece fixation. The transmission system often uses rigid connection, which easily generates vibration transmission and affects the weld formation quality. Traditional shock absorption devices only achieve limited buffering effect through simple rubber pads and cannot effectively absorb high-frequency vibration energy.

[0004] The root cause of the above problems lies in the lack of dynamic adaptive clamping technology, which cannot automatically adjust the clamping force and position according to the shape and size of the workpiece. The transmission system does not consider vibration isolation design, which causes mechanical vibration to be transmitted to the welding area through the worktable. The vibration damping structure does not form a multi-level buffer system and its vibration suppression capability under complex working conditions is insufficient. These defects ultimately lead to consequences such as excessive welding deformation, increased weld defect rate and high equipment failure rate. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a frame welding equipment with stable welding, which can effectively solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a stable welding frame welding device, including a workbench, slide rails on both sides of the workbench, a bracket slidably connected to the slide rails, a first motor and a second motor arranged side by side at the top of the bracket, a clamping sleeve at the output end of the first motor, a transmission gear at the output end of the second motor, a steering transmission rod on the upper surface of the bracket, the steering transmission rod being arranged in the same direction as the clamping sleeve, a threaded sleeve sleeved on the outer surface of the steering transmission rod, and a double gear rod arranged laterally on the upper surface of the bracket, each double gear rod having two gears respectively, the double gear rod meshing with the clamping sleeve and the steering transmission rod.

[0008] Furthermore, a partition is provided on the front side of the top of the bracket, and a threaded sleeve and a steering transmission rod are passed through the center of the partition. A housing is fixedly installed on the front end of the steering transmission rod.

[0009] Furthermore, gear sleeves are provided on both sides inside the outer casing, the gear in the middle of the gear sleeve meshes with the threaded sleeve, and clamps are symmetrically arranged on both sides of the gear sleeve.

[0010] Furthermore, each of the grippers has a first semicircular block at its front end, two second semicircular blocks at its front end, and two third semicircular blocks at its front end.

[0011] Furthermore, motor switches are provided at the rear ends of both the first and second motors, and the partition is connected to the outer casing.

[0012] Furthermore, a retainer is provided at the lower end of the bracket, and several shock-absorbing balls are arranged in a linear array on the lower surface of the workbench, and the shock-absorbing balls are connected to the workbench by a rubber belt.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model is equipped with a linkage structure of clamping sleeve, steering transmission rod and double gear rod. Through dual motor drive, it realizes multi-dimensional clamping force adjustment, which can dynamically adapt to workpieces of different shapes and sizes and evenly distribute clamping force, effectively solving the problem of unstable fixation of traditional clamping mechanisms. At the same time, it avoids workpiece deformation caused by concentrated clamping force and improves welding stability. This design can also reduce manual intervention through automated adjustment and improve production efficiency.

[0015] 2. This utility model is equipped with a multi-stage buffer system consisting of shock-absorbing balls and rubber belts, which, together with the flexible connection structure of the transmission system, can effectively absorb the high-frequency vibration energy generated during the welding process, reduce the transmission of vibration to the worktable and workpiece, fundamentally improve the weld formation quality, and this shock absorption scheme can also reduce the mechanical wear of the equipment during operation, extend the service life of the equipment and reduce the failure rate, thus meeting the high requirements of automated production lines for equipment stability. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0017] Figure 1 is a schematic diagram of the structure of this utility model.

[0018] Figure 2 is a schematic diagram of the structure at point A in Figure 1 of this utility model.

[0019] Figure 3 is a schematic diagram of the upper cross-sectional structure of this utility model.

[0020] Figure 4 is a schematic diagram of structure B in Figure 3 of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Workbench; 11. Slide rail; 12. Shock absorber ball; 2. Bracket; 21. Fixture; 22. Housing; 23. First motor; 231. Motor switch; 24. Second motor; 242. Transmission gear; 25. Steering transmission rod; 251. Threaded sleeve; 26. Clamping sleeve; 27. Double gear rod; 28. Gear sleeve; 29. ​​Gripper; 3. Partition; 31. First semicircular block; 32. Second semicircular block; 33. Third semicircular block. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Example 1

[0025] Referring to Figures 1-3, the first embodiment of this utility model provides a welding equipment for a stable welding frame. A slide rail 11 is provided on both sides of the worktable 1, and a support 2 is slidably connected to the slide rail 11. The slide rail 11 extends along the length of the worktable 1. The bottom of the support 2 forms a sliding pair with the slide rail 11 via a slider, allowing it to move laterally along the slide rail 11. A first motor 23 and a second motor 24 are arranged side-by-side at the top of the support 2. The first motor 23 and the second motor 24 are fixed to a fixture 21 at the top of the support 2 by bolts. The output shafts of both motors are aligned with the height direction of the support 2. A clamping sleeve 26 is provided at the output end of the first motor 23, and the clamping sleeve 26 is rigidly connected to the output shaft of the first motor 23, with its axis collinear with the motor output shaft. A transmission gear 242 is provided at the output end of the second motor 24.

[0026] The transmission gear 242 is keyed and mounted on the output shaft of the second motor 24, rotating synchronously with the motor. A steering transmission rod 25 is provided on the upper surface of the bracket 2. The steering transmission rod 25 is arranged in the same direction as the clamping sleeve 26. The steering transmission rod 25 is mounted on the upper surface of the bracket 2 through a bearing seat. Its axis is parallel to the clamping sleeve 26 and located on the same horizontal plane. A threaded sleeve 251 is sleeved on the outer surface of the steering transmission rod 25. The threaded sleeve 251 is sleeved with the steering transmission rod 25 and can slide freely along the steering transmission rod 25. A double gear rod 27 is arranged laterally on the upper surface of the bracket 2. Two gears are respectively provided on the double gear rod 27. The double gear rod 27 meshes with the clamping sleeve 26 and the steering transmission rod 25. The double gear rod 27 is mounted laterally on the upper surface of the bracket 2 through a bearing seat. The gears at both ends mesh with the threads in the middle of the clamping sleeve 26 and the threads on the outer surface of the threaded sleeve 251, respectively.

[0027] A partition 3 is provided on the front side of the top of the bracket 2. The threaded sleeve 251 and the steering transmission rod 25 pass through the center of the partition 3. The outer shell 22 is fixedly installed at the front end of the steering transmission rod 25. The partition 3 is fastened to the top of the bracket 2 with bolts to provide a support structure for the outer shell 22. The front end of the outer shell 22 and the front end of the steering transmission rod 25 are positioned by a locating pin and then locked with bolts to form a stable connection structure. The interior of the outer shell 22 is used to accommodate some transmission components and plays a protective role.

[0028] Gear sleeves 28 are provided on both sides inside the housing 22. The gear sleeves 28 are rotatably mounted on the inner wall of the housing 22 through bearing seats and are arranged in a horizontal parallel manner. The gear in the middle of the gear sleeve 28 meshes with the threaded sleeve 251. When the threaded sleeve 251 moves axially, it drives the gear sleeve 28 to rotate. The two sides of the gear sleeve 28 are symmetrically provided with grippers 29. The grippers 29 are engaged with the outer threaded section of the gear sleeve 28 through the internal thread. When the gear sleeve 28 rotates, the two grippers 29 move symmetrically along its axial direction to realize the clamping action.

[0029] Example 2

[0030] Referring to Figures 1-4, this is the second embodiment of the present invention, which differs from the first embodiment in that:

[0031] A sliding groove is provided at the front end of the gripper 29, and a slider is provided at the rear end of the first semicircular block 31. The slider is embedded in the sliding groove at the front end of the gripper 29 to form a sliding fit. At the same time, the first semicircular block 31 and the gripper 29 are rotatably connected by a rotating shaft to achieve relative rotation. A side sliding groove is provided on the side of the first semicircular block 31, and the slider at the rear end of the second semicircular block 32 is embedded in the side sliding groove of the first semicircular block 31 to form a sliding connection. The second semicircular block 32 and the first semicircular block 31 are rotatably connected by a rotating shaft to satisfy independent rotation. A sliding groove is provided at the front end of the second semicircular block 32, and the slider at the rear end of the third semicircular block 33 is embedded in the sliding groove of the second semicircular block 32. They are also rotatably connected by a rotating shaft to form a multi-level sliding and independently rotatable structure to achieve multi-angle adaptive adjustment.

[0032] Both the first motor 23 and the second motor 24 have motor switches 231 at their rear ends. The switches are fixed to the rear ends of the motors with bolts. The partition 3 and the outer shell 22 are connected by a rotatable fit. The central hole of the partition 3 has a bearing built in to support the steering transmission rod 25. The outer shell 22 is fixedly connected to the end of the steering transmission rod 25 through a flange. The second motor 24 drives the double gear rod 27 through the transmission gear 242. The double gear rod 27 drives the steering transmission rod 25 to rotate, thereby driving the outer shell 22 to rotate synchronously.

[0033] A retainer 21 is provided at the lower end of the bracket 2. The retainer 21 is fastened to the bottom of the bracket 2 by bolts. Its bottom surface is in contact with the sliding surface of the slide rail 11 of the workbench 1. The position of the bracket 2 is locked by adjusting the clamping force between the retainer 21 and the slide rail 11 by bolts. Several shock-absorbing balls 12 are evenly distributed in a linear array on the lower surface of the workbench 1. The shock-absorbing balls 12 are connected to the bottom surface of the workbench 1 by rubber bands. The two ends of the rubber bands are respectively embedded in the grooves on the top of the shock-absorbing balls 12 and the fixing holes reserved on the bottom surface of the workbench 1, forming an elastic suspension structure.

[0034] The remaining structure is the same as that in Example 1.

[0035] The specific operating principle of this utility model is as follows:

[0036] First, after the dual-motor drive system is started, the first motor 23 drives the clamping sleeve 26 to rotate, and transmits power synchronously to the threaded sleeve 251 through the double gear rod 27, causing the threaded sleeve 251 to move axially along the steering transmission rod 25. At the same time, the second motor 24 drives the double gear rod 27 through the transmission gear 242 to realize the differential transmission between the steering transmission rod 25 and the clamping sleeve 26, thereby driving the outer shell 22 to rotate synchronously.

[0037] Secondly, the axial movement of the threaded sleeve 251 drives the gear sliding sleeve 28 to rotate. The symmetrically arranged grippers 29 on both sides achieve opposite or backward movement through threaded engagement. In the multi-stage adaptive gripper 29 structure, the first semicircular block 31, the second semicircular block 32, and the third semicircular block 33 are slidably connected to each other through the sliding groove and can rotate independently. The fitting angle is automatically adjusted according to the shape of the workpiece to achieve flexible clamping in three-dimensional space.

[0038] Finally, the vibration generated during the welding process is transmitted to the shock-absorbing ball 12 through the workbench 1. The rubber belt elastic suspension structure forms a multi-level buffer, converting the high-frequency vibration energy into heat energy for dissipation. At the same time, the fixing device 21 adjusts the clamping force with the slide rail 11 through bolts to ensure that the bracket 2 remains stably positioned during welding.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A welding machine frame with stable welding capabilities, comprising a worktable (1), characterized in that, The workbench (1) is provided with slide rails (11) on both sides. A bracket (2) is slidably connected on the slide rails (11). A first motor (23) and a second motor (24) are arranged side by side at the top of the bracket (2). A clamping sleeve (26) is provided at the output end of the first motor (23). A transmission gear (242) is provided at the output end of the second motor (24). A steering transmission rod (25) is provided on the upper surface of the bracket (2). The steering transmission rod (25) is arranged in the same direction as the clamping sleeve (26). A threaded sleeve (251) is sleeved on the outer surface of the steering transmission rod (25). A double gear rod (27) is arranged laterally on the upper surface of the bracket (2). Two gears are respectively provided on the double gear rod (27). The double gear rod (27) meshes with the clamping sleeve (26) and the steering transmission rod (25).

2. The welding equipment for a stable frame according to claim 1, characterized in that, A partition (3) is provided on the front side of the top of the bracket (2). A threaded sleeve (251) and a steering transmission rod (25) are passed through the center of the partition (3). A housing (22) is fixedly installed on the front end of the steering transmission rod (25).

3. The welding equipment for a stable frame according to claim 2, characterized in that, Gear sleeves (28) are provided on both sides inside the outer shell (22). The gear in the middle of the gear sleeve (28) meshes with the threaded sleeve (251). Claws (29) are symmetrically arranged on both sides of the gear sleeve (28).

4. The welding equipment for a stable frame according to claim 3, characterized in that, Each of the grippers (29) has a first semicircular block (31) at its front end, and two second semicircular blocks (32) are provided at the front end of the first semicircular block (31), and two third semicircular blocks (33) are provided at the front end of the second semicircular block (32).

5. A welding stable gantry welding apparatus according to claim 4, wherein, The first motor (23) and the second motor (24) are each provided with a motor switch (231) at their rear ends, and the partition (3) is connected to the outer shell (22).

6. A welding fixture apparatus of claim 1, wherein, The lower end of the bracket (2) is provided with a retainer (21), and the lower surface of the workbench (1) is provided with a number of shock-absorbing balls (12) arranged in a linear array. The shock-absorbing balls (12) are connected to the workbench (1) by a rubber belt.

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