A welding tooling for the chassis of an elevator traction machine

Abstract

The present invention discloses a welding tooling for an elevator traction machine chassis, belonging to the field of welding tooling, which includes a machine tool. A positioning mechanism is arranged on the upper surface of the machine tool, and a chassis frame is arranged on the outer side inside the positioning mechanism. The positioning mechanism includes a base, a rotating frame is rotatably connected to the top of the base, and a first motor is fixed on the left side inside the base. Through the positioning mechanism, four C-shaped steels can be quickly placed in a square shape to form a chassis frame. By means of the cooperation of structures such as the second electric push rod, the second gear, the vertical plate, the lifting plate, the first gear, and the clamping frame, the upper and lower clamping of the C-shaped steel is realized, and the clamping is efficient and stable, greatly improving the preparation efficiency before welding. The first motor drives the transmission wheel to rotate the rotating frame, and then structures such as the telescopic frame, the support frame, and the bracket rotate by 45 degrees accordingly, which can adjust the contact position between the support frame and the C-shaped steel, facilitating welding operations on different parts and increasing the flexibility of welding.

Description

Technical Field

[0001] The present invention relates to the technical field of welding jigs, and particularly to a welding jig for an elevator traction machine chassis. Background Art

[0002] The bases of many elevator traction machines are often assembled and welded into a rectangular structure by four C-shaped steel channels. Such a structure can provide stable support for the traction machine, and the shape and structural characteristics of the C-shaped steel give it certain advantages in terms of bending resistance, compression resistance, etc., and can better withstand various forces generated during the operation of the traction machine;

[0003] However, there are many defects in the existing elevator traction machine chassis welding technology. For example, the traditional positioning and clamping method is inefficient, and it is difficult to quickly and accurately place the C-shaped steel into a square shape and perform stable clamping, resulting in a long preparation time before welding and affecting production efficiency. Moreover, during the welding process, there is a lack of a flexible rotation adjustment structure, making it difficult to perform convenient welding operations on different parts, and both the welding quality and efficiency are affected. In addition, when taking out the finished product, the operation of releasing the limit is complex, time-consuming and laborious, which is not conducive to improving the overall production efficiency.

[0004] The present invention aims to overcome the defects of the prior art and provide an efficient, flexible and convenient welding jig for an elevator traction machine chassis. By optimizing the positioning mechanism and the clamping structure, rapid positioning and stable clamping of the C-shaped steel are achieved; a rotation adjustment structure is provided to facilitate welding of different parts; a convenient limit and limit release device is designed to make it easier to take out the finished product, thereby improving the welding quality and production efficiency of the elevator traction machine chassis. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a welding jig for an elevator traction machine chassis, which solves the problems raised in the above background art.

[0006] Technical solution: To solve the above technical problems, according to one aspect of the present invention, more specifically, it is a welding tooling for the chassis of an elevator traction machine, including a machine tool. A positioning mechanism is arranged on the upper surface of the machine tool. A chassis frame is arranged on the outer side of the positioning mechanism. The positioning mechanism includes a base. A rotating frame is rotatably connected to the top of the base. A first motor is fixed on the left side inside the base. A transmission wheel is fixed on the top of the output shaft of the first motor. An electric push rod one is fixed at the center of the upper surface inside the rotating frame. A lifting frame is fixed at the bottom end of the electric push rod one. Four connecting rods are rotatably connected inside the lifting frame. The top of the connecting rod is rotatably connected to a telescopic frame. The opposite ends of the four telescopic frames all penetrate to the outside of the rotating frame and are all fixed with support frames. A vertical plate is slidably connected to the outer surface of the support frame. A bracket is slidably connected to the outer surface of the vertical plate and the support frame. A through groove is formed through the inside of the bracket. The vertical plate and the support frame are both located inside the through groove. An electric push rod two is fixed on the upper surface of the telescopic frame. The bottom end of the electric push rod two penetrates below the telescopic frame and is fixed to the bracket.

[0007] Furthermore, an outer groove is formed above the outer surface of the support frame. A lifting plate is slidably connected inside the outer groove. The lifting plate is integrally formed with the top of the vertical plate. Two rotating rods are connected through the inside of the lifting plate. Both of the two rotating rods are rotatably connected inside the outer groove. A clamping frame is sleeved on the outer surface of the rotating rod above the lifting plate. A first gear is sleeved on the outer surface of the rotating rod below the lifting plate. Both the first gear and the clamping frame are rotatably connected to the lifting plate. A first rack is arranged between the two clamping frames. Two first gears are meshed with a second rack. Both the first rack and the second rack are slidably connected to the lifting plate. A first spring is fixed at one end of the first rack located inside the outer groove. A third gear is rotatably connected inside the lifting plate. Both the first rack and the second rack are meshed with the third gear. A second gear is rotatably connected below the inside of the support frame. A resisting rod is fixed on the lower surface of the first rack. A rod groove is formed on the upper surface of the lifting plate. The rod groove is adapted to the resisting rod.

[0008] The chassis frame is welded by four C-shaped steels and has a square structure.

[0009] Furthermore, sliding grooves are formed on the outer surface of the rotating rod. Sliding blocks are fixed inside the clamping frame and the first gear. The sliding blocks are located inside the sliding grooves.

[0010] Furthermore, tooth grooves are formed on one side of the vertical plate close to the support frame and the inner surface of the through groove. Both the vertical plate and the bracket are meshed with the second gear through the tooth grooves.

[0011] Further, two sliding grooves are formed in the upper surface of the bracket. A sliding seat is slidably connected inside the sliding groove. A second spring is fixedly arranged between the sliding seat and the inside of the sliding groove. A clamping rod is fixedly arranged on the upper surface of the sliding seat. Both of the two clamping rods are located outside the chassis frame.

[0012] Further, the outer surfaces of all eight clamping rods are all in contact with the lower part of the outer side wall of the chassis frame. The lower surface of the clamping frame is in contact with the upper surface of the chassis frame. Both sides of the outer surface of the support frame are in contact with the inner side wall of the chassis frame. The upper surface of the bracket is in contact with the lower surface of the chassis frame.

[0013] Further, the outer surface of the transmission wheel is in contact with the inner surface of the rotating frame.

[0014] Further, a connecting frame is sleeved on the outer surface of the base. Four ends of the connecting frame are respectively fixedly connected with the outer surfaces of four brackets.

[0015] The beneficial effects of a welding tooling for an elevator traction machine chassis of the present invention are as follows:

[0016] (1) The present invention has efficient positioning and clamping: Through the positioning mechanism, four C-shaped steels can be quickly placed in a square shape to form a chassis frame. By the cooperation of structures such as the second electric push rod, the second gear, the vertical plate, the lifting plate, the first gear, and the clamping frame, the upper and lower clamping of the C-shaped steel is realized. The clamping is efficient and stable, greatly improving the preparation efficiency before welding.

[0017] (2) The present invention has flexible rotation and adjustment: The first motor drives the transmission wheel to rotate the rotating frame, and then structures such as the telescopic frame, the support frame, and the bracket rotate by 45 degrees accordingly. The contact position between the support frame and the C-shaped steel can be adjusted, facilitating welding operations on different parts and increasing the flexibility of welding.

[0018] (3) The present invention has convenient limiting and releasing of the limit: When the support frame is squeezed against the C-shaped steel, the abutting rod moves and retracts into the rod groove, driving the first rack to move inwards. Through the transmission of the third gear, the second rack moves outwards, causing the two first gears to move away from each other, driving the clamping frame to rotate away from the upper surface of the chassis frame, easily releasing the limit on the upper part of the chassis frame and facilitating the removal of the welded finished product. The operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following further describes the present invention in detail with reference to the drawings and specific implementation methods.

[0020] Figure 1 is a structural schematic diagram of the present invention;

[0021] Figure 2 is a cross-sectional structural schematic diagram of the present invention;

[0022] Figure 3Schematic top view structure of the present invention;

[0023] Figure 4 The present invention Figure 3 Schematic cross-sectional structure of the present invention in the A-A direction;

[0024] Figure 5 Schematic structure of the positioning mechanism in the present invention;

[0025] Figure 6 Schematic structure of the bracket and the support in the present invention;

[0026] Figure 7 The present invention Figure 6 Schematic side-sectional structure of;

[0027] Figure 8 Schematic diagram of the internal structure of the support in the present invention;

[0028] Figure 9 Schematic diagram of the internal structure of the outer groove in the present invention;

[0029] Figure 10 Schematic diagram of the internal structure of the sliding groove in the present invention.

[0030] In the figure: 1, machine tool; 2, positioning mechanism; 3, chassis frame; 4, base; 5, rotating frame; 6, motor 1; 7, transmission wheel; 8, electric push rod 1; 9, lifting frame; 10, connecting rod; 11, telescopic frame; 12, support; 13, bracket; 14, electric push rod 2; 15, through groove; 16, outer groove; 17, lifting plate; 18, vertical plate; 19, rotating rod; 20, clamping frame; 21, gear 1; 22, slideway; 23, rack 1; 24, spring 1; 25, gear 2; 26, tooth groove; 27, sliding groove; 28, sliding seat; 29, spring 2; 30, clamping rod; 31, connecting frame; 32, slider; 33, resisting rod; 34, rod groove; 35, gear 3; 36, rack 2. Detailed implementation manners

[0031] The present invention will be described in detail below with reference to the drawings and in combination with embodiments. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0032] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0033] Refer to Figure 1-10, A welding tooling for the chassis of an elevator traction machine, including a machine tool 1. A positioning mechanism 2 is arranged on the upper surface of the machine tool 1. A chassis frame 3 is arranged on the outer side inside the positioning mechanism 2. The positioning mechanism 2 includes a base 4. A rotating frame 5 is rotatably connected to the top of the base 4. A first motor 6 is fixed on the left side inside the base 4. A transmission wheel 7 is fixed on the top of the output shaft of the first motor 6. An electric push rod 8 is fixed at the center of the upper surface inside the rotating frame 5. An elevating frame 9 is fixed at the bottom end of the electric push rod 8. Four connecting rods 10 are rotatably connected inside the elevating frame 9. The top of the connecting rod 10 is rotatably connected to a telescopic frame 11. The opposite ends of the four telescopic frames 11 all penetrate to the outside of the rotating frame 5 and are all fixed with support frames 12. A vertical plate 18 is slidably connected to the outer surface of the support frame 12. A bracket 13 is slidably connected to the outer surface of the vertical plate 18 and the support frame 12. A through groove 15 is formed through the inside of the bracket 13. The vertical plate 18 and the support frame 12 are both located inside the through groove 15. An electric push rod 14 is fixed on the upper surface of the telescopic frame 11. The bottom end of the electric push rod 14 penetrates below the telescopic frame 11 and is fixed to the bracket 13.

[0034] An outer groove 16 is formed on the upper part of the outer surface of the support frame 12. A lifting plate 17 is slidably connected inside the outer groove 16. The lifting plate 17 is integrally formed with the top of the vertical plate 18. Two rotating rods 19 are connected through the inside of the lifting plate 17. Both of the two rotating rods 19 are rotatably connected inside the outer groove 16. A clamping frame 20 is sleeved on the outer surface of the rotating rod 19 above the lifting plate 17. A first gear 21 is sleeved on the outer surface of the rotating rod 19 below the lifting plate 17. Both the first gear 21 and the clamping frame 20 are rotatably connected to the lifting plate 17. A first rack 23 is arranged between the two clamping frames 20. A second rack 36 is meshed with the two first gears 21. Both the first rack 23 and the second rack 36 are slidably connected to the lifting plate 17. A first spring 24 is fixed at one end of the first rack 23 located inside the outer groove 16. A third gear 35 is rotatably connected inside the lifting plate 17. Both the first rack 23 and the second rack 36 are meshed with the third gear 35. A second gear 25 is rotatably connected to the lower part inside the support frame 12. A resisting rod 33 is fixed on the lower surface of the first rack 23. A rod groove 34 is formed on the upper surface of the lifting plate 17. The rod groove 34 is adapted to the resisting rod 33;

[0035] The chassis frame 3 is welded by four C-shaped steels and has a square structure;

[0036] When in use, four C-shaped steels are placed in a square shape through the positioning mechanism 2 to form a chassis frame 3. The four electric push rods 2 14 are retracted to pull the bracket 13 to drive the C-shaped steel to rise. At the same time, the vertical plate 18, the lifting plate 17, the gear 1 21, and the clamping frame 20 are lowered along the rotating rod 19 under the transmission of the gear 2 25, so that the bracket 13 and the clamping frame 20 clamp the C-shaped steel up and down. After the personnel weld the exposed gaps between adjacent C-shaped steels and complete the preliminary welding of the chassis frame 3, the personnel control the electric push rod 1 8 to extend to make the lifting frame 9 descend, and under the pull of the connecting rod 10, the telescopic frame 11 drives the support frame 12 and other structures to retract. At the same time, when the motor 1 6 is running, the transmission wheel 7 drives the rotating frame 5 to rotate. At this time, the four telescopic frames 11, the support frame 12, the bracket 13 and other structures rotate 45 degrees accordingly, so that the surface with the smallest outer surface area of the support frame 12 contacts the middle part of the corresponding C-shaped steel. At the same time, the support frame 12 and the C-shaped steel squeeze the support rod 33 to move into the rod groove 34, thereby causing the rack 1 23 to move inward and the rack 3 36 to move outward under the transmission of the gear 3 35. The two gears 1 21 are engaged with the rack 3 36 and move away from each other, so that the two clamping frames 20 are driven by the rotating rod 19 to rotate away from the upper surface of the chassis frame 3. Thereby, the upper surface is no longer limited. After welding, the personnel can lift the chassis frame 3 to take out the finished product.

[0037] Reference Figure 6-9 A slideway 22 is provided on the outer surface of the rotating rod 19, and a slider 32 is fixed inside the clamping frame 20 and the gear 1 21. The slider 32 is located inside the slideway 22; under the action of the slider 32 and the slideway 22, the rotating rod 19 can drive the gear 1 21 and the clamping frame 20 to rotate synchronously.

[0038] Reference Figure 7 A tooth groove 26 is provided on one side of the vertical plate 18 close to the bracket 12 and on the inner surface of the through groove 15 . The vertical plate 18 and the bracket 13 are meshed with the gear 2 25 through the tooth groove 26 .

[0039] Reference Figure 7 、 Figure 10 Two slide grooves 27 are provided on the upper surface of the bracket 13, and a slide seat 28 is slidably connected inside the slide groove 27. A spring 29 is fixed between the slide seat 28 and the inside of the slide groove 27. A clamping rod 30 is fixed on the upper surface of the slide seat 28. Both clamping rods 30 are located on the outside of the chassis frame 3. When the spring 29 pulls, the clamping rod 30 pulls the outside of the C-shaped steel so that it can fit the outer surface of the side support frame 12.

[0040] Reference Figure 1-10 The outer surfaces of the eight clamping rods 30 are all in contact with the lower side wall of the chassis frame 3, the lower surface of the clamping frame 20 is in contact with the upper surface of the chassis frame 3, the outer surfaces of the support frame 12 on both sides are in contact with the inner side wall of the chassis frame 3, and the upper surface of the bracket 13 is in contact with the lower surface of the chassis frame 3, thereby positioning the chassis frame 3 inside and outside and up and down.

[0041] Refer to Figure 2-4 , the outer surface of the transmission wheel 7 fits with the inner surface of the rotating frame 5; a connecting frame 31 is sleeved on the outer surface of the base 4, and the four ends of the connecting frame 31 are respectively fixedly connected to the outer surfaces of the four brackets 13, so that the lifting is stable.

[0042] The above embodiments only represent several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims

1. A welding tooling for an elevator traction machine chassis, comprising a machine tool (1), characterized in that: A positioning mechanism (2) is provided on the upper surface of the machine tool (1). A chassis frame (3) is provided on the outer side inside the positioning mechanism (2). The positioning mechanism (2) includes a base (4). A rotating frame (5) is rotatably connected to the top of the base (4). A first motor (6) is fixed to the left side inside the base (4). A transmission wheel (7) is fixed to the top of the output shaft of the first motor (6). An electric push rod one (8) is fixed to the center of the upper surface inside the rotating frame (5). A lifting frame (9) is fixed to the bottom end of the electric push rod one (8). Four connecting rods (10) are rotatably connected inside the lifting frame (9). A telescopic frame (11) is rotatably connected to the top of the connecting rod (10). The opposite ends of the four telescopic frames (11) all penetrate to the outside of the rotating frame (5) and are all fixed with support frames (12). A vertical plate (18) is slidably connected to the outer surface of the support frame (12). A bracket (13) is slidably connected to the outer surfaces of the vertical plate (18) and the support frame (12). A through groove (15) is formed through the inside of the bracket (13). The vertical plate (18) and the support frame (12) are both located inside the through groove (15). An electric push rod two (14) is fixed to the upper surface of the telescopic frame (11). The bottom end of the electric push rod two (14) penetrates below the telescopic frame (11) and is fixed to the bracket (13). An outer groove (16) is formed in the upper part of the outer surface of the support frame (12). A lifting plate (17) is slidably connected to the inside of the outer groove (16). The lifting plate (17) is integrally formed with the top of the vertical plate (18). Two rotating rods (19) are connected through the inside of the lifting plate (17). Both of the two rotating rods (19) are rotatably connected to the inside of the outer groove (16). A clamping frame (id="20") is sleeved on the outer surface of the rotating rod (19) above the lifting plate (17). A first gear (21) is sleeved on the outer surface of the rotating rod (19) below the lifting plate (17). Both the first gear (21) and the clamping frame (20) are rotatably connected to the lifting plate (17). A first rack (23) is provided between the two clamping frames (20). The two first gears (21) are meshed with a second rack (36). Both the first rack (23) and the second rack (36) are slidably connected to the lifting plate (17). A first spring (24) is fixed to one end of the first rack (23) located inside the outer groove (16). A third gear (35) is rotatably connected to the inside of the lifting plate (17). Both the first rack (23) and the second rack (36) are meshed with the third gear (35). A second gear (25) is rotatably connected to the lower part inside the support frame (12). A resisting rod (33) is fixed to the lower surface of the first rack (23). A rod groove (34) is formed in the upper surface of the lifting plate (17). The rod groove (34) is adapted to the resisting rod (33). The chassis frame (3) is welded by four C-shaped steels and has a square structure with an opening in the middle. Two chutes (27) are provided on the upper surface of the bracket (13). A sliding seat (28) is slidably connected inside the chute (27). A second spring (29) is fixedly provided between the sliding seat (28) and the inside of the chute (27). A clamping rod (30) is fixedly provided on the upper surface of the sliding seat (28). Both of the two clamping rods (30) are located outside the chassis frame (3).

2. The welding tooling for the elevator traction machine chassis according to claim 1, characterized in that: A slideway (22) is provided on the outer surface of the rotating rod (19). Sliders (32) are fixedly provided inside the clamping frame (20) and inside the first gear (21). The sliders (32) are located inside the slideway (22).

3. A welding tooling for an elevator traction machine chassis according to claim 1, characterized in that: Tooth grooves (26) are provided on one side of the vertical plate (18) close to the support frame (12) and on the inner surface of the through groove (15). The vertical plate (18) and the bracket (13) are both meshed and connected to the second gear (25) through the tooth grooves (26).

4. A welding tooling for the chassis of an elevator traction machine according to claim 1, characterized in that: The outer surfaces of the eight clamping rods (30) are all in contact with the lower part of the outer side wall of the chassis frame (3). The lower surface of the clamping frame (20) is in contact with the upper surface of the chassis frame (3). Both sides of the outer surface of the support frame (12) are in contact with the inner side wall of the chassis frame (3). The upper surface of the bracket (13) is in contact with the lower surface of the chassis frame (3).

5. A welding tooling for an elevator traction machine chassis according to claim 1, characterized in that: The outer surface of the transmission wheel (7) is in contact with the inner surface of the rotating frame (5).

6. A welding tooling for the chassis of an elevator traction machine according to claim 1, characterized in that: A connecting frame (31) is sleeved on the outer surface of the base (4). Four ends of the connecting frame (31) are respectively fixedly connected to the outer surfaces of the four brackets (13).

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