Rotating shaft welding tool jig

Abstract

The utility model discloses a rotating shaft welding tool jig, which relates to the technical field of rotating shaft welding, and comprises a fixing sleeve, an upper electrode and a lower electrode, the upper electrode is arranged above the fixing sleeve, the lower surface of the fixing sleeve is provided with a lower electrode hole, the lower electrode hole is internally in threaded connection with the lower electrode through a bolt, and the rotating shaft welding tool jig further comprises a limiting structure. The limiting structure is arranged on the upper surface of the bolt and comprises a fixing block, a hole corresponding to the pin shaft in shape is formed in the upper surface of the fixing block, the lower electrode penetrates and extends into the hole, and a first pin groove corresponding to the PIN in shape is formed in the upper surface of the fixing block. According to the utility model, through the guide structure, the upper electrode can accurately weld the welding center points of the PIN and the pin shaft, and the welding process is faster and more accurate; by means of the discharging structure, welded workpieces can be discharged more quickly and conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of rotating shaft welding, in particular to a rotating shaft welding tool and fixture. Background Art

[0002] Resistance welding refers to a method of using the resistance heat generated by the current passing through the weldment and the contact point as a heat source to locally heat the weldment and pressurize it for welding. During welding, no filler metal is required, the productivity is high, and the weldment deformation is small.

[0003] With the further development of welding technology, the size of welded parts to be welded by new products is getting smaller and smaller. Such small-sized welded parts have very high requirements for relative position during welding, and the positioning also needs to be very accurate. The existing small shaft welding fixtures use manual calibration during welding, which is prone to deviation when finding the welding point, and it is inconvenient to remove the welded workpiece from the fixture.

[0004] Based on this, a rotating shaft welding tool is now provided to eliminate the disadvantages of the existing device. Utility Model Content

[0005] The utility model aims to provide a rotating shaft welding tool fixture to solve the problems of inaccurate manual calibration during welding and inconvenience in taking the welded workpiece out of the fixture.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A rotating shaft welding tooling fixture comprises a fixing sleeve, an upper electrode and a lower electrode, wherein the upper electrode is arranged above the fixing sleeve, a lower electrode hole is opened on the lower surface of the fixing sleeve, the lower electrode is threadedly connected to the lower electrode through a bolt, and a limiting structure is also included, wherein the limiting structure is arranged on the upper surface of the bolt.

[0008] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0009] In an optional solution: the limiting structure includes a fixing block, a hole corresponding to the shape of the pin shaft is opened on the upper surface of the fixing block, the lower electrode extends through the hole, and a first needle groove corresponding to the shape of the PIN needle is opened on the upper surface of the fixing block.

[0010] In an optional solution: the upper electrode output end is provided with a second needle groove corresponding to the shape of the PIN needle.

[0011] In an optional solution: the output end of the lower electrode is provided with an axis groove corresponding to the shape of the pin shaft.

[0012] In an optional scheme: a guide structure is provided on the upper surface of the fixed block, and the guide structure includes a fixed rod and a guide block. Two relative fixed rods are fixedly connected to the upper surface of the fixed block, and the upper surfaces of the two fixed rods are commonly fixedly connected with a guide block. The side wall of the guide block is provided with a hole corresponding to the shape of the upper electrode, and the upper electrode is slidably connected to the inner wall of the guide block hole.

[0013] The cam is provided with a plurality of movable parts, and the movable part is provided with a plurality of movable parts, and the movable part is provided with a plurality of movable parts.

[0014] In an optional solution: a soft pad is provided on the upper surface of the pressing block.

[0015] In an optional solution: a damping spring is fixedly connected between the upper surface of the pressing block and the top wall of the pressing block groove.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. The utility model uses a guiding structure to enable the upper electrode to accurately weld the welding center point of the PIN needle and the pin shaft, and the welding process is faster and more accurate.

[0018] 2. The utility model inserts the discharging block in the discharging box into the slot of the pin shaft, presses the pressing block, and pulls the pull rope during the downward movement of the pressing block. The pull rope changes the direction of force through the fixed pulley to pull the discharging block upward. The discharging block lifts the pin shaft, so that the pin shaft leaves the hole of the fixed block and can be taken by hand, which makes it convenient to take the pin shaft and the discharging is faster and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model.

[0020] Figure 2 This is a first viewing angle diagram of the present invention.

[0021] Figure 3 This is a second viewing angle diagram of the present invention.

[0022] Figure 4 This is a third viewing angle diagram of the present utility model.

[0023] Figure 5 This is a fourth viewing angle diagram of the present invention.

[0024] Figure 6 This is a schematic diagram of the lower electrode structure of the utility model.

[0025] Figure 7 It is a schematic diagram of the upper electrode structure of the utility model.

[0026] Figure 8 This is the workpiece welding diagram of the utility model

[0027] Fig. 9 It is a schematic diagram of the internal structure of the discharge box of the utility model.

[0028] Notes on figure numbers: 1 fixing sleeve, 2 bolt, 3 upper electrode, 4 lower electrode, 5 fixing block, 6 PIN needle, 7 pin shaft, 8 first needle groove, 9 shaft groove, 10 second needle groove, 11 discharge box, 12 pressing block, 13 discharge block, 14 pulley cavity, 15 pull rope, 16 slider, 17 fixing rod, 18 guide block. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0030] Example 1

[0031] In one embodiment, Figure 1-Figure 9 As shown, a rotating shaft welding tooling fixture includes a fixed sleeve 1, an upper electrode 3, and a lower electrode 4. The upper electrode 3 is arranged above the fixed sleeve 1, and a lower electrode hole is opened on the lower surface of the fixed sleeve 1. The lower electrode 4 is threadedly connected to the lower electrode hole through a bolt 2. The fixing sleeve 1 also includes a limiting structure, which is arranged on the upper surface of the bolt 2.

[0032] In one embodiment, Figure 2 and Figure 3 As shown, the limiting structure includes a fixing block 5, a hole corresponding to the shape of the pin shaft 7 is opened on the upper surface of the fixing block 5, the lower electrode 4 extends through the hole, and a first pin groove 8 corresponding to the shape of the PIN pin 6 is opened on the upper surface of the fixing block 5. The first pin groove 8 is used to fix the product PIN pin 6 in the center position.

[0033] In one embodiment, Figure 6 and Figure 7 As shown, the output end of the upper electrode 3 is provided with a second needle groove 10 corresponding to the shape of the PIN needle 6. The second needle groove 10 is used to protect the product PIN needle 6 from being broken down by current.

[0034] In one embodiment, Figure 6 As shown, the output end of the lower electrode 4 is provided with an axis groove 9 corresponding to the shape of the pin shaft 7. The axis groove 9 is used to fix the pin shaft 7 in the center position.

[0035] In one embodiment, Figure 5 As shown, a guide structure is provided on the upper surface of the fixed block 5, and the guide structure includes a fixed rod 17 and a guide block 18. Two opposite fixed rods 17 are fixedly connected to the upper surface of the fixed block 5, and the upper surfaces of the two fixed rods 17 are fixedly connected to the guide block 18. The side wall of the guide block 18 is provided with a hole corresponding to the shape of the upper electrode 3, and the upper electrode 3 is slidably connected to the inner side wall of the hole of the guide block 18. The upper electrode 3 is transported downward and guided by the hole of the guide block 18, so that the upper electrode 3 can accurately weld the welding center point of the PIN needle 6 and the pin shaft 7.

[0036] In one embodiment, Figure 4 and Fig. 9 As shown, a discharging structure is arranged on the upper surface of the fixed sleeve 1, and the discharging structure includes a discharging box 11, a slider groove is opened on the upper surface of the fixed sleeve 1, and a slider 16 is slidably connected to the inner side wall of the slider groove, and the upper surface of the slider 16 is fixedly connected to the discharging box 11, and a pressing block groove and a discharging block groove are opened on the side wall of the discharging box 11, and a pressing block 12 is slidably connected to the inner side wall of the pressing block groove, and a discharging block 13 is slidably connected to the inner side wall of the discharging block groove, and the height of the discharging block 13 is smaller than the height of the slot hole of the pin shaft 7, and a pulley cavity 14 is opened in the discharging box 11, and the inner side wall of the pulley cavity 14 is rotatably connected to two fixed pulleys through the pin shaft, and a pull rope 15 is fixedly connected to the upper surface of the pressing block 12, and the end of the pull rope 15 away from the pressing block 12 bypasses the two fixed pulleys and extends through the discharging block groove to be fixedly connected to the discharging block 13, and both the pressing block 12 and the discharging block 13 are I-shaped structures. After welding, first pull out the upper electrode 3, then move the discharge box 11, insert the discharge block 13 in the discharge box 11 into the slot of the pin 7, press the pressing block 12, and pull the pull rope 15 during the downward movement of the pressing block 12. The pull rope 15 changes the direction of force through the fixed pulley to pull up the discharge block 13. The discharge block 13 lifts the pin 7, so that the pin 7 leaves the hole of the fixed block 5, and then it can be taken by hand, which is convenient for taking the pin 7 and making the discharge faster and more convenient.

[0037] Example 2

[0038] In one embodiment, Fig. 9 As shown, a cushion is provided on the upper surface of the pressing block 12. Pressing is more comfortable.

[0039] In one embodiment, Figure 4 and Fig. 9 As shown, a damping spring is fixedly connected between the upper surface of the pressing block 12 and the top wall of the pressing block groove, so as to facilitate the resetting of the pressing block 12.

[0040] The above embodiment discloses a rotating shaft welding tool. First, the pin shaft 7 to be welded is placed into the hole of the fixed block 5 from the right side of the fixed block 5 and placed in the shaft groove 9 at the output end of the lower electrode 4, and then the PIN needle 6 is placed in the first needle groove 8 of the fixed block 5, and the upper electrode 3 is conveyed downward. The upper electrode 3 is guided by the hole of the guide block 18, so that the upper electrode 3 can accurately weld the welding center point of the PIN needle 6 and the pin shaft 7. When the welding is completed, the upper electrode 3 is pulled out first, and then the discharge box 11 is moved, and the discharge block 13 in the discharge box 11 is inserted into the slot of the pin shaft 7, and the pressing block 12 is pressed. The pull rope 15 is pulled during the downward movement of the pressing block 12. The pull rope 15 changes the direction of the force through the fixed pulley to pull up the discharge block 13, and the discharge block 13 lifts the pin shaft 7, so that the pin shaft 7 leaves the hole of the fixed block 5, and then it is taken by hand, which is convenient for taking the pin shaft 7, and the discharge is faster and more convenient.

[0041] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A rotating shaft welding fixture, comprising a fixing sleeve (1), an upper electrode (3), and a lower electrode (4), wherein the upper electrode (3) is arranged above the fixing sleeve (1), a lower electrode hole is opened on the lower surface of the fixing sleeve (1), and the lower electrode (4) is threadedly connected to the lower electrode hole through a bolt (2), characterized in that: It also includes a limiting structure, which is arranged on the upper surface of the bolt (2).

2. The rotating shaft welding fixture according to claim 1, characterized in that: The limiting structure comprises a fixing block (5), the upper surface of the fixing block (5) is provided with a hole corresponding to the shape of the pin shaft (7), the lower electrode (4) extends through the hole, and the upper surface of the fixing block (5) is provided with a first needle groove (8) corresponding to the shape of the PIN needle (6).

3. A rotating shaft welding fixture according to claim 2, characterized in that: The output end of the upper electrode (3) is provided with a second needle groove (10) corresponding to the shape of the PIN needle (6).

4. The rotating shaft welding fixture according to claim 3, characterized in that: The output end of the lower electrode (4) is provided with an axis groove (9) corresponding to the shape of the pin shaft (7).

5. The rotating shaft welding fixture according to claim 4, characterized in that: A guide structure is provided on the upper surface of the fixed block (5), and the guide structure comprises a fixed rod (17) and a guide block (18). Two opposite fixed rods (17) are fixedly connected to the upper surface of the fixed block (5), and the upper surfaces of the two fixed rods (17) are commonly fixedly connected to the guide block (18). A hole corresponding to the shape of the upper electrode (3) is provided on the side wall of the guide block (18), and the upper electrode (3) is slidably connected to the inner side wall of the hole of the guide block (18).

6. A rotating shaft welding fixture according to claim 5, characterized in that: The upper surface of the fixed sleeve (1) is provided with a discharge structure, the discharge structure comprising a discharge box (11), the upper surface of the fixed sleeve (1) is provided with a slider groove, the inner side wall of the slider groove is slidably connected with a slider (16), the upper surface of the slider (16) is fixedly connected with the discharge box (11), the side wall of the discharge box (11) is provided with a pressing block groove and a discharge block groove, the inner side wall of the pressing block groove is slidably connected with a pressing block (12), the inner side wall of the discharge block groove is slidably connected with a discharge block (13), the The height of the discharge block (13) is smaller than the height of the slot hole of the pin shaft (7); a pulley cavity (14) is provided in the discharge box (11); the inner wall of the pulley cavity (14) is rotatably connected to two fixed pulleys via a pin shaft; a pull rope (15) is fixedly connected to the upper surface of the pressing block (12); one end of the pull rope (15) away from the pressing block (12) bypasses the two fixed pulleys and extends into the discharge block groove to be fixedly connected to the discharge block (13); the pressing block (12) and the discharge block (13) are both I-shaped structures.

7. The rotating shaft welding fixture according to claim 6, characterized in that: The upper surface of the pressing block (12) is provided with a soft pad.

8. The rotating shaft welding fixture according to claim 6, characterized in that: A damping spring is fixedly connected between the upper surface of the pressing block (12) and the top wall of the pressing block groove.

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