Welding equipment positioning device for mechanical part machining

Abstract

The invention discloses a welding equipment positioning device for mechanical part machining, and relates to the technical field of machining. The device comprises a case, and a control panel is arranged on the front face of the case; a clamping mechanism is arranged in an inner cavity of the machine box and comprises a fixing ring fixedly connected to the inner cavity of the machine box, a through groove formed in the surface of the fixing ring and a threaded pipe arranged in an inner cavity of the through groove. Single motor driving is adopted to be matched with the self-adaptive switching mechanism, intelligent power distribution is achieved through magnetic ring repulsive force and gear clutch, the economic cost of a multi-motor system is remarkably reduced, the self-adaptive switching mechanism (a cam, a sliding block and a driving rod are linked) enables the clamping plate to be separated from a transmission chain in real time according to the outline of a part, and the clamping efficiency is improved. The device can adapt to irregular surfaces without a sensor, damage to the sensor caused by a high-temperature environment during operation of welding equipment is avoided, and the use reliability and long-term precision stability of the device under complex working conditions are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical processing, and in particular relates to a welding equipment positioning device for mechanical parts processing. Background Art

[0002] In the field of mechanical processing, welding is a critical step in connecting parts, and positioning accuracy directly affects welding quality. Traditional welding positioning devices often use fixed fixtures or single-direction clamping mechanisms. For parts with irregular surface contours (such as curved surfaces and stepped parts), the fixture position must be adjusted or replaced multiple times, resulting in low clamping efficiency and poor positioning accuracy.

[0003] Although some multi-directional clamping devices have appeared in the existing technology, they generally rely on multi-motor drive or sensor feedback (such as pressure sensors, displacement sensors), and have the following defects: multi-motor drive increases equipment cost, and motor synchronization control is difficult, which can easily lead to uneven clamping force; sensors are easily damaged in the high-temperature welding environment, and long-term use will reduce detection accuracy and affect positioning reliability; the clamping stroke of traditional devices is fixed, which is difficult to adapt to parts of different sizes and shapes, and has poor versatility.

[0004] To this end, we provide a welding equipment positioning device for mechanical parts processing to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a welding equipment positioning device for mechanical parts processing. Through the cooperation of a clamping mechanism and an adaptive switching mechanism, the problems of the welding equipment positioning device for mechanical parts processing in the prior art, such as high cost of multiple motors, fragile sensors and poor adaptability to clamping irregular parts, are solved.

[0006] To solve the above technical problems, the present invention is implemented through the following technical solutions.

[0007] The present invention is a welding equipment positioning device for mechanical parts processing, comprising a chassis, a control panel being provided on the front of the chassis; a clamping mechanism being provided in the inner cavity of the chassis, the clamping mechanism comprising a fixing ring fixedly connected to the inner cavity of the chassis, a through groove being provided on the surface of the fixing ring, a threaded tube being provided in the inner cavity of the through groove, a mounting plate fixedly connected to one end of the threaded tube, and a clamping plate being provided on one side of the mounting plate; an adaptive switching mechanism being provided on the surface of the fixing ring, the adaptive switching mechanism comprising a rotating shaft rotatably connected to the outer surface of the fixing ring through a bearing seat, a switching gear sleeved on the surface of the rotating shaft, and a first magnetic ring fixedly connected to one side of the switching gear.

[0008] The present invention is further configured such that a driving motor is fixedly connected to the inner cavity of the chassis, the output shaft of the driving motor is fixedly connected to a first gear, a toothed ring is meshed on the surface of the first gear, a rack is fixedly connected to the surface of the toothed ring, a threaded rod is threadedly connected to the inner cavity of the threaded tube, and a second gear is fixedly connected to the surface of the threaded rod, the driving motor provides the main force, which is transmitted through the first gear and the toothed ring to drive the rack to rotate, the rack drives the threaded rod to rotate through the switching gear and the second gear, and the threaded tube realizes radial movement of the clamping plate under the transmission of the threaded rod.

[0009] The present invention is further configured such that a constraint column is fixedly connected to one side of the tooth ring, the number of the constraint columns is eight, and they are arranged in a circular array, the other end of the constraint column is slidably connected to the inner cavity of the chassis, and the constraint column limits the rotation range of the tooth ring to ensure that it only translates in the circumferential direction, thereby avoiding transmission failure due to excessive rotation.

[0010] The present invention is further configured to have a surface of the threaded tube movably connected to a fixed shaft through a bearing seat, and the surface of the fixed shaft is fixedly connected to a cam and a third gear from front to back in sequence, and the surface of the third gear is meshed with a toothed plate, one side of the toothed plate is fixedly connected to one side of the clamping plate, and the surface of the toothed plate is sleeved with a first spring, two ends of the first spring are respectively fixedly connected to the mounting plate and one side of the clamping plate, and the expansion block is slidably connected to the slider. When the clamping plate contacts the part, the clamping plate drives the third gear to rotate through the toothed plate, and the third gear drives the cam to rotate through the fixed shaft. The cam pushes the expansion block through the slider, and the telescopic rod limits the expansion block to make it move horizontally axially. The expansion block drives the driving rod to move through the driving wheel and the driving block, and the driving rod drives the switching gear to move. When the clamping plate contacts the stroke block, the cam rotates ninety degrees, and the driving rod pushes the switching gear to completely disengage from the second gear, ending the corresponding threaded tube stroke distance.

[0011] The present invention is further configured such that a travel block is fixedly connected between the mounting plate and the clamping plate, a slide groove is provided on one side of the mounting plate, a slider is slidably connected to the inner cavity of the slide groove, the travel block limits the maximum moving distance of the clamping plate to avoid overpressure damaging the first spring, the slider cooperates with the slide groove to limit the expansion block, causing it to move axially, so that the clamping plate fits the outer contour of the part and adapts to parts of different sizes.

[0012] The present invention is further configured such that one side of the fixing ring is fixedly connected to a support plate, one side of the support plate is fixedly connected to a telescopic rod, the other end of the telescopic rod is fixedly connected to an expansion block, one side of the expansion block is fixedly connected to a driving wheel, a sliding hole is provided on the surface of the support plate, and a sliding rod is slidably connected to the inner cavity of the sliding hole, one end of the sliding rod is fixedly connected to the driving block, and one side of the driving block is fixedly connected to the driving rod.

[0013] The present invention is further configured such that a second spring is sleeved on the surface of the telescopic rod, a third spring is sleeved on the surface of the sliding rod, a ball is provided at the other end of the driving rod, and the sliding rod cooperates with the sliding hole to facilitate limiting the driving block. The second spring acts on the expansion block to facilitate resetting of the expansion block, and the third spring facilitates resetting of the sliding rod. The ball reduces the friction resistance between the driving rod and the surface of the switching gear.

[0014] The present invention is further configured such that a clamping block is fixedly connected to the surface of the rotating shaft, a clamping slot is fixedly connected to the axis center of the switching gear, a fourth spring is fixedly connected to one side of the clamping block, and the other end of the fourth spring is fixedly connected to one side of the switching gear. The clamping block cooperates with the clamping slot to ensure that the switching gear maintains power transmission during the sliding process on the rotating shaft, and the fourth spring provides elastic force to keep the switching gear in an engaged state when there is no external force, so that it engages with the rack and the second gear.

[0015] The present invention is further configured such that the inner cavity of the chassis is fixedly connected to a power-on block, the bottom of the threaded tube is fixedly connected to a second magnetic ring, the second magnetic ring is an electromagnetic ring, the magnetic poles of the first magnetic ring and the second magnetic ring are designed to be opposite, the power-on block supplies power to the second magnetic ring, and when the threaded tube is reset to a specified position, the second magnetic ring contacts the power-on block, and the second magnetic ring generates a repulsive force after being energized, and cooperates with the first magnetic ring to move the switching gear outward, so that it disengages from the rack and the second gear, releasing the power transmission, ensuring the threaded tube reset effect, simple operation, and improving the clamping efficiency of parts.

[0016] The present invention is further configured such that the inner cavity of the chassis is fixedly connected to a power block, the bottom of the threaded tube is fixedly connected to a second magnetic ring, the surface of the threaded tube is fixedly connected to a limiting block, and the inner cavity of the through groove is provided with a limiting groove adapted to the limiting block. The limiting block cooperates with the limiting groove to limit the rotation angle of the threaded tube, ensuring that the clamping plate moves along a fixed track to avoid deviation, and the mechanical parts can be quickly positioned and clamped.

[0017] The present invention has the following beneficial effects.

[0018] 1. This invention uses a single motor drive coupled with an adaptive switching mechanism to achieve intelligent power distribution through magnetic ring repulsion and gear clutching, significantly reducing the economic cost of multi-motor systems. The adaptive switching mechanism (cam, slider, and drive rod linkage) enables the clamping plate to disengage the transmission chain in real time according to the part contour. It can adapt to irregular surfaces without the need for sensors, preventing damage to sensors caused by the high temperature environment during operation of the welding equipment. This improves the reliability and long-term accuracy stability of the device under complex working conditions.

[0019] 2. The present invention constrains the threaded tube to move only axially through the limit block and the limit groove in the clamping mechanism, and combines the stroke block to limit the clamping stroke, ensuring uniform clamping force and preventing overload. When resetting, the threaded tube moves to the initial position, triggering the power block to supply power to the second magnetic ring, and using the magnetic repulsion force to push the switching gear out of the transmission chain, achieving zero-error synchronous reset and improving processing efficiency.

[0020] 3. The present invention enhances the translational stability of the tooth ring through eight circular arrays of constraint columns to prevent transmission dislocation. The ball design significantly reduces the friction loss between the drive rod and the switching gear. The fourth spring ensures normal engagement of the switching gear. The block and slot ensure the continuity of power transmission. The mechanical self-locking mechanism reduces energy consumption.

[0021] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments.

[0023] Figure 1 A three-dimensional diagram of a welding equipment positioning device used for machining mechanical parts.

[0024] Figure 2 This is a schematic diagram of the internal structure of a chassis in a positioning device for welding equipment used for machining mechanical parts.

[0025] Figure 3 This is a diagram showing the coordination of the first gear and the tooth ring in a positioning device for welding equipment used for machining mechanical parts.

[0026] Figure 4 This is a diagram showing the coordination of a switching gear and a second gear in a positioning device for welding equipment used for machining mechanical parts.

[0027] Figure 5 This is a diagram showing the coordination of the limit block and limit groove in a positioning device for welding equipment used for machining mechanical parts.

[0028] Figure 6 This is an exploded view of the rotating shaft and switching gear in a positioning device of a welding equipment used for machining mechanical parts.

[0029] Figure 7 This is a diagram showing the fit of the slider and expansion block in a positioning device for welding equipment used in machining mechanical parts.

[0030] Figure 8 This is an exploded view of the cam and third gear in the positioning device of a welding device used for machining mechanical parts.

[0031] In the accompanying drawings: 1. chassis; 2. control panel; 3. fixing ring; 4. through slot; 5. threaded tube; 6. mounting plate; 7. clamping plate; 8. rotating shaft; 9. switching gear; 10. first magnetic ring; 11. driving motor; 12. first gear; 13. toothed ring; 14. rack; 15. threaded rod; 16. second gear; 17. restraining column; 18. fixed shaft; 19. cam; 20. third gear; 21. toothed plate; 22. first spring; 23. travel block; 24. slide; 25. slider; 26. support plate; 27. telescopic rod; 28. extension block; 29. ​​driving wheel; 30. slide rod; 31. driving block; 32. driving rod; 33. second spring; 34. third spring; 35. clamping block; 36. clamping slot; 37. fourth spring; 38. power block; 39. second magnetic ring; 40. limit block; 41. limit slot. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] Example 1: Please refer to Figures 1-8 The present invention is a welding equipment positioning device for machining mechanical parts, comprising a chassis 1, a control panel 2 being provided on the front of the chassis 1; a clamping mechanism being provided in the inner cavity of the chassis 1, the clamping mechanism comprising a fixing ring 3 fixedly connected to the inner cavity of the chassis 1, a through groove 4 being provided on the surface of the fixing ring 3, a threaded tube 5 being provided in the inner cavity of the through groove 4, a mounting plate 6 fixedly connected to one end of the threaded tube 5, a clamping plate 7 being provided on one side of the mounting plate 6, a driving motor 11 being fixedly connected to the inner cavity of the chassis 1, and a first output shaft of the driving motor 11 being fixedly connected to the first output shaft of the driving motor 11. Gear 12, the surface of the first gear 12 is meshed with a tooth ring 13, the surface of the tooth ring 13 is fixedly connected to a rack 14, the inner cavity of the threaded tube 5 is threadedly connected to a threaded rod 15, the surface of the threaded rod 15 is fixedly connected to a second gear 16, one side of the tooth ring 13 is fixedly connected to a constraint column 17, there are eight constraint columns 17, and they are arranged in a circular array, the other end of the constraint column 17 is slidably connected to the inner cavity of the chassis 1, the surface of the threaded tube 5 is fixedly connected to a limit block 40, and the inner cavity of the through groove 4 is provided with a limit groove 41 adapted to the limit block 40.

[0034] Further supplement: The driving motor 11 provides the main force, which is transmitted through the first gear 12 and the tooth ring 13 to drive the rack 14 to rotate. The rack 14 drives the threaded rod 15 to rotate through the switching gear 9 and the second gear 16. The threaded tube 5 realizes radial movement of the clamping plate 7 under the transmission of the threaded rod 15. The constraint column 17 limits the rotation range of the tooth ring 13 to ensure that it only translates in the circumferential direction to avoid transmission failure due to excessive rotation. The limit block 40 cooperates with the limit groove 41 to limit the rotation angle of the threaded tube 5 to ensure that the clamping plate 7 moves along a fixed track to avoid offset, and the mechanical parts can be quickly positioned and clamped.

[0035] Example 2: Please refer to Figures 1-8 On the basis of Example 1, an adaptive switching mechanism is provided on the surface of the fixing ring 3, which includes a rotating shaft 8 rotatably connected to the outer surface of the fixing ring 3 through a bearing seat, a switching gear 9 sleeved on the surface of the rotating shaft 8, and a first magnetic ring 10 fixedly connected to one side of the switching gear 9. The surface of the threaded tube 5 is movably connected to a fixed shaft 18 through a bearing seat. The surface of the fixed shaft 18 is fixedly connected to a cam 19 and a third gear 20 in sequence from front to back. A tooth plate 21 is meshed on the surface of the third gear 20. One side of the tooth plate 21 is fixedly connected to one side of the clamping plate 7. A first spring 22 is sleeved on the surface of the tooth plate 21. The first spring 2 2 are fixedly connected to the mounting plate 6 and one side of the clamping plate 7 respectively at both ends. One side of the fixing ring 3 is fixedly connected to a support plate 26. One side of the support plate 26 is fixedly connected to a telescopic rod 27. The other end of the telescopic rod 27 is fixedly connected to an expansion block 28. One side of the expansion block 28 is fixedly connected to a driving wheel 29. A sliding hole is opened on the surface of the support plate 26, and a sliding rod 30 is slidably connected to the inner cavity of the sliding hole. One end of the sliding rod 30 is fixedly connected to a driving block 31. One side of the driving block 31 is fixedly connected to a driving rod 32. A second spring 33 is sleeved on the surface of the telescopic rod 27. A third spring 34 is sleeved on the surface of the sliding rod 30. A ball bearing is provided on the other end of the driving rod 32.

[0036] Further supplement; the expansion block 28 and the slider 25 are slidably connected. When the clamping plate 7 contacts the part, the clamping plate 7 drives the third gear 20 to rotate through the tooth plate 21, and the third gear 20 drives the cam 19 to rotate through the fixed shaft 18. The cam 19 pushes the expansion block 28 through the slider 25, and the telescopic rod 27 limits the expansion block 28 to make it move horizontally. The expansion block 28 drives the driving rod 32 to move through the driving wheel 29 and the driving block 31, and the driving rod 32 pushes the switching gear 9 to move. When the clamping plate 7 contacts the stroke block 23, the cam 19 rotates ninety degrees, and the driving rod 32 pushes the switching gear 9 to completely disengage from the second gear 16, ending the travel distance of the corresponding threaded tube 5. The stroke block 23 limits the maximum moving distance of the clamping plate 7 to avoid overpressure damaging the first spring 22. The slider 25 cooperates with the slide groove 24. The expansion block 28 is limited to move axially so that the clamping plate 7 fits the outer contour of the part and adapts to parts of different sizes. The slide rod 30 cooperates with the slide hole to facilitate limiting the drive block 31. The second spring 33 acts on the expansion block 28 to facilitate the reset of the expansion block 28. The third spring 34 facilitates the reset of the slide rod 30. The ball reduces the friction resistance between the drive rod 32 and the surface of the switching gear 9. When clamping irregular mechanical parts through the adaptive switching mechanism, the corresponding threaded rod 15 can be automatically switched to whether to transmit according to the surface contour of the mechanical parts. In conjunction with the clamping mechanism, irregular parts can be clamped and fixed within a certain range. The device can be implemented with a single motor and no sensors are required, avoiding the high economic cost caused by multi-motor drive and the high temperature generated by the operation of the welding equipment to damage the sensor, reducing its use accuracy.

[0037] Example 3: Please refer to Figures 1-8 On the basis of Examples 1 and 2, a travel block 23 is fixedly connected between the mounting plate 6 and the clamping plate 7, a slide groove 24 is opened on one side of the mounting plate 6, a slider 25 is slidably connected to the inner cavity of the slide groove 24, a power block 38 is fixedly connected to the inner cavity of the chassis 1, a second magnetic ring 39 is fixedly connected to the bottom of the threaded tube 5, the second magnetic ring 39 is an electromagnetic ring, the first magnetic ring 10 and the second magnetic ring 39 are designed with opposite magnetic poles, a clamping block 35 is fixedly connected to the surface of the rotating shaft 8, a clamping groove 36 is fixedly connected to the axis center of the switching gear 9, a fourth spring 37 is fixedly connected to one side of the clamping block 35, and the other end of the fourth spring 37 is fixedly connected to one side of the switching gear 9.

[0038] Further supplement: the block 35 cooperates with the slot 36 to ensure that the switching gear 9 maintains power transmission during the sliding process on the rotating shaft 8. The fourth spring 37 provides elastic force to keep the switching gear 9 in a meshing state when there is no external force, so that it meshes with the rack 14 and the second gear 16. The power block 38 supplies power to the second magnetic ring 39. When the threaded tube 5 is reset to the specified position, the second magnetic ring 39 contacts the power block 38. After the second magnetic ring 39 is energized, a repulsive force is generated to drive it, and in cooperation with the first magnetic ring 10, the switching gear 9 moves outward, so that it is disengaged from the rack 14 and the second gear 16, releasing the power transmission, ensuring the reset effect of the threaded tube 5, simple operation, and improving the clamping efficiency of the parts.

[0039] The working principle of the present invention is: the parts are placed in the fixed ring 3, and then the control panel 2 starts the drive motor 11, the output shaft of the drive motor 11 drives the first gear 12 to rotate, the first gear 12 drives the gear ring 13 to rotate, and pushes the gear ring 13 to translate in the circumferential direction (the constraint column 17 limits its rotation), and the rack 14 on the surface of the gear ring 13 moves synchronously, driving the switching gear 9 to rotate, and the switching gear 9 drives the threaded rod 15 to rotate through the second gear 16, and the threaded rod 15 moves axially through the through groove 4 of the threaded tube 5 (the limit block 40 cooperates with the limit groove 41 to limit the threaded tube 5 to only axial displacement), and the threaded tube 5 pushes the mounting plate 6 and the clamping plate 7 to move toward the center of the chassis 1 to preliminarily clamp the parts.

[0040] When the clamping plate 7 contacts the part (such as a protrusion or depression), the clamping plate 7 drives the third gear 20 to rotate through the tooth plate 21, and the third gear 20 drives the cam 19 to rotate through the fixed shaft 18. The cam 19 pushes the expansion block 28 through the slider 25, and the telescopic rod 27 limits the expansion block 28 to make it move horizontally axially. The expansion block 28 drives the driving rod 32 to move through the driving wheel 29 and the driving block 31, and the driving rod 32 pushes the switching gear 9 to move. When the clamping plate 7 contacts the stroke block 23, the cam 19 rotates ninety degrees at this time, and the driving rod 32 pushes the switching gear 9 to completely disengage from the second gear 16, ending the corresponding threaded tube 5 stroke distance. When all switching gears 9 are disengaged, the clamping of irregular parts can be completed.

[0041] When resetting is required, just take out the irregular parts, and act on the clamping plate 7 through the first spring 22. The clamping plate 7 drives the fixed shaft 18 to rotate through the tooth plate 21 and the third gear 20, and the fixed shaft 18 drives the cam 19 to rotate, and the contact slider 25 is limited. The second spring 33 cooperates with the expansion block 28, and the expansion block 28 is reset. The driving block 31 is reset by the third spring 34, and the driving block 31 drives the driving rod 32 to reset. The switching gear 9 is meshed with the second gear 16 and the rack 14 through the action of the fourth spring 37. At this time, the drive motor 11 rotates in the opposite direction, causing all the threaded tubes 5 to move outward.

[0042] Since the feeding distance of the threaded tube 5 is different at this time, when the threaded tube 5 is reset to the specified position, the second magnetic ring 39 fixedly connected to the surface contacts the power block 38. At this time, the power block 38 supplies power to the second magnetic ring 39. After the second magnetic ring 39 is energized, a repulsive force is generated to drive it, and cooperate with the first magnetic ring 10 to move the switching gear 9 outward, so that it is disengaged from the rack 14 and the second gear 16, and the power transmission is released. When all the threaded tubes 5 are reset, the drive motor 11 is stopped, and then all the power blocks 38 are de-energized, so that the switching gear 9 is engaged with the rack 14 and the second gear 16 under the action of the fourth spring 37, and then the above operation is repeated to achieve the clamping and fixation of the next part.

[0043] The device uses a single motor and does not require a sensor to achieve an adaptive clamping effect, avoiding the high economic cost caused by multi-motor drive and the damage to the sensor caused by the high temperature generated by the operation of the welding equipment, thereby reducing its accuracy.

[0044] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A welding equipment positioning device for machining mechanical parts, comprising a chassis (1), characterized in that: A control panel (2) is provided on the front of the chassis (1); The inner cavity of the chassis (1) is provided with a clamping mechanism, which comprises a fixing ring (3) fixedly connected to the inner cavity of the chassis (1), a through groove (4) provided on the surface of the fixing ring (3), a threaded tube (5) provided in the inner cavity of the through groove (4), a mounting plate (6) fixedly connected to one end of the threaded tube (5), and a clamping plate (7) provided on one side of the mounting plate (6); An adaptive switching mechanism is provided on the surface of the fixed ring (3), and the adaptive switching mechanism comprises a rotating shaft (8) rotatably connected to the outer surface of the fixed ring (3) via a bearing seat, a switching gear (9) sleeved on the surface of the rotating shaft (8), and a first magnetic ring (10) fixedly connected to one side of the switching gear (9).

2. The welding equipment positioning device for machining mechanical parts according to claim 1, characterized in that: The inner cavity of the chassis (1) is fixedly connected to a driving motor (11), the output shaft of the driving motor (11) is fixedly connected to a first gear (12), a toothed ring (13) is meshed on the surface of the first gear (12), a rack (14) is fixedly connected to the surface of the toothed ring (13), the inner cavity of the threaded tube (5) is threadedly connected to a threaded rod (15), and the surface of the threaded rod (15) is fixedly connected to a second gear (16).

3. The welding equipment positioning device for machining mechanical parts according to claim 2, characterized in that: One side of the tooth ring (13) is fixedly connected to a constraint column (17), the constraint columns (17) are eight in number and arranged in a circular array, and the other end of the constraint column (17) is slidably connected to the inner cavity of the chassis (1).

4. The welding equipment positioning device for machining mechanical parts according to claim 1, characterized in that: The surface of the threaded tube (5) is movably connected to a fixed shaft (18) through a bearing seat, and the surface of the fixed shaft (18) is fixedly connected to a cam (19) and a third gear (20) in sequence from front to back. The surface of the third gear (20) is meshed with a tooth plate (21), and one side of the tooth plate (21) is fixedly connected to one side of the clamping plate (7). A first spring (22) is sleeved on the surface of the tooth plate (21), and two ends of the first spring (22) are fixedly connected to one side of the mounting plate (6) and the clamping plate (7), respectively.

5. The welding equipment positioning device for machining mechanical parts according to claim 1, characterized in that: A travel block (23) is fixedly connected between the mounting plate (6) and the clamping plate (7), a sliding groove (24) is provided on one side of the mounting plate (6), and a slider (25) is slidably connected to the inner cavity of the sliding groove (24).

6. The welding equipment positioning device for machining mechanical parts according to claim 1, characterized in that: One side of the fixing ring (3) is fixedly connected to a support plate (26), one side of the support plate (26) is fixedly connected to a telescopic rod (27), the other end of the telescopic rod (27) is fixedly connected to an expansion block (28), one side of the expansion block (28) is fixedly connected to a driving wheel (29), a sliding hole is provided on the surface of the support plate (26), and a sliding rod (30) is slidably connected to the inner cavity of the sliding hole, one end of the sliding rod (30) is fixedly connected to a driving block (31), and one side of the driving block (31) is fixedly connected to a driving rod (32).

7. The welding equipment positioning device for machining mechanical parts according to claim 6, characterized in that: The surface of the telescopic rod (27) is provided with a second spring (33), the surface of the sliding rod (30) is provided with a third spring (34), and the other end of the driving rod (32) is provided with a ball.

8. The welding equipment positioning device for machining mechanical parts according to claim 1, characterized in that: A clamping block (35) is fixedly connected to the surface of the rotating shaft (8), a clamping groove (36) is fixedly connected to the axis of the switching gear (9), a fourth spring (37) is fixedly connected to one side of the clamping block (35), and the other end of the fourth spring (37) is fixedly connected to one side of the switching gear (9).

9. The welding equipment positioning device for machining mechanical parts according to claim 1, characterized in that: The inner cavity of the chassis (1) is fixedly connected to a power block (38), and the bottom of the threaded tube (5) is fixedly connected to a second magnetic ring (39), the second magnetic ring (39) is an electromagnetic ring, and the magnetic poles of the first magnetic ring (10) and the second magnetic ring (39) are designed to be opposite.

10. The welding equipment positioning device for machining mechanical parts according to claim 1, characterized in that: The surface of the threaded tube (5) is fixedly connected to a limiting block (40), and the inner cavity of the through groove (4) is provided with a limiting groove (41) adapted to the limiting block (40).

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