A spot welding positioning device

Abstract

The present invention discloses a spot welding positioning device, which is a spot welding positioning device for stably positioning a reinforcing hoop inside an inner cone and aligning and scribing lines for spot welding. Both ends of the mandrel are fixed to both ends of the inner cone through radial end components and shaft end components. The clamping and supporting component uses the mandrel as the force-bearing basis to clamp and support the reinforcing hoop inside the inner cone and align the scribing lines. The spot welding positioning device realizes the function of stably positioning the reinforcing hoop inside the inner cone and aligning the scribing lines for spot welding, ensuring the required tolerance requirements of the reinforcing hoop in the inner cone after spot welding, and solving the problem that the position of the reinforcing hoop is inaccurate due to the shaking when the worker holds the reinforcing hoop for spot welding.

Description

Technical Field

[0001] The present invention relates to a spot welding positioning device, belonging to the technical field of welding tooling. Background Art

[0002] The inner cone assembly with small ends and a large middle is composed of an inner cone 13 cylinder and a reinforcing hoop 14. The existing positioning method is difficult to achieve spot welding of the reinforcing hoop 14 positioned inside the inner cone 13. The existing technology is as follows: manually align the scribed line on the inner wall of the reinforcing hoop with the inner cone, and the worker holds the reinforcing hoop 14 and performs spot welding in the inner cone 13. Although the reinforcing hoop 14 can be spot welded in the inner cone 13, when the worker holds the reinforcing hoop 14 for spot welding, there will be shaking, resulting in inaccurate position of the reinforcing hoop 14, and it is difficult to ensure the tolerance requirements of the reinforcing hoop 14 in the inner cone 13 after spot welding. Summary of the Invention

[0003] To solve the above technical problems, the present invention provides a spot welding positioning device.

[0004] The present invention is achieved through the following technical solutions.

[0005] A spot welding positioning device provided by the present invention is a spot welding positioning device for stably positioning the reinforcing hoop inside the inner cone and aligning the scribed lines for spot welding.

[0006] It includes: a mandrel;

[0007] A clamping and supporting assembly, which is installed on the mandrel in the middle of the inner cone. The clamping and supporting assembly clamps and supports the reinforcing hoop inside the inner cone with the mandrel as the force-bearing basis;

[0008] A radial end assembly, which is installed on the mandrel at one end of the inner cone. The radial end assembly is installed on the outer periphery of the inner cone diameter to fix one end of the mandrel, forming a force-bearing basis for fixing one end of the mandrel;

[0009] An axial end assembly, which is installed on the mandrel at the other end of the inner cone. The axial end assembly is installed on the outer periphery of the inner cone axially to fix the other end of the mandrel, forming a force-bearing basis for fixing the other end of the mandrel.

[0010] The mandrel, the clamping and supporting assembly, the radial end assembly and the axial end assembly are all in three groups, and the three groups are evenly distributed at an angle of 120° to stably clamp and support the reinforcing hoop.

[0011] The clamping and supporting assembly includes: a positioning plate, a pressing plate, a pin and a wing nut.

[0012] The positioning plate is sleeved and fixed on the mandrel to provide a basis for the installation and positioning of the reinforcing hoop.

[0013] The pressing plate is provided with a through hole and can slide and sleeve on the mandrel.

[0014] The pin is fixedly installed on the pressure plate through a pin, and the pin penetrates through a pin through-hole provided on the positioning plate.

[0015] The wing nut is screwed with the pin penetrating through the positioning plate through a thread pair.

[0016] The radial end assembly includes a positioning ring sleeved on a step at one end of the mandrel through a through-hole, and an annular groove is provided on the axial end face of the positioning ring for axial installation with the inner cone.

[0017] A nut that screws the positioning ring tightly on the mandrel, and tightening the nut presses the positioning ring against the axial end face of the inner cone.

[0018] A screw that is screwed with the outer periphery of the positioning ring through a thread pair, and the screw is screwed from the outer periphery of the positioning ring to lift the positioning ring, and the annular groove of the positioning ring abuts against the inner diameter surface of the inner cone.

[0019] The shaft end assembly includes a support plate screwed with the other end of one end of the mandrel through a thread pair, and a threaded through-hole is provided on the support plate.

[0020] A top screw rotatably installed in the threaded through-hole of the support plate, and a rotating handle is provided at the outer end of the top screw.

[0021] A pressing block screwed with the end of the top screw through a thread pair.

[0022] The beneficial effects of the present invention are as follows: both ends of the mandrel are fixed at both ends of the inner cone through the radial end assembly and the shaft end assembly, the clamping and supporting assembly uses the mandrel as the force-bearing basis to clamp and support the reinforcing hoop inside the inner cone to align the scribed lines, and the spot welding positioning device realizes the function of positioning and stabilizing the reinforcing hoop inside the inner cone to align the scribed lines for spot welding, ensuring the required tolerance requirements of the reinforcing hoop in the inner cone after spot welding, and solving the problem that the position of the reinforcing hoop is inaccurate due to the shaking when the worker holds the reinforcing hoop for spot welding. Description of the Drawings

[0023] Figure 1 It is a schematic diagram of the symmetric half of the main view in the use state of the present invention;

[0024] Figure 2 It is a schematic diagram of the side view of the present invention;

[0025] In the figure: 1 - positioning ring; 2 - mandrel; 3 - pressure plate; 4 - positioning plate; 5 - pressing block; 6 - top screw; 7 - support plate; 8 - nut; 9 - screw; 10 - pin; 11 - wing nut; 12 - pin; 13 - inner cone; 14 - reinforcing hoop. Detailed Embodiments

[0026] The technical solution of the present invention will be further described below, but the scope of protection claimed is not limited thereto.

[0027] As Figures 1 to 2 shown

[0028] A spot welding positioning device of the present application includes:

[0029] A mandrel 2 penetrating and installed in the inner cone 13, and the mandrel 2 serves as the basic load-bearing member of the entire spot welding positioning device;

[0030] A clamping and supporting assembly installed on the mandrel 2 at the middle part of the inner cone 13. The clamping and supporting assembly takes the mandrel 2 as the load-bearing basis to clamp and support the reinforcing hoop 14 inside the inner cone 13;

[0031] A radial end assembly installed on the mandrel 2 at one end of the inner cone 13. The radial end assembly is installed on the outer periphery of the radial direction of the inner cone 13 to fix one end of the mandrel 2, forming the basis for fixing and bearing force at one end of the mandrel 2;

[0032] An axial end assembly installed on the mandrel 2 at the other end of the inner cone 13. The axial end assembly is installed on the outer periphery of the axial direction of the inner cone 13 to fix the other end of the mandrel 2, forming the basis for fixing and bearing force at the other end of the mandrel 2.

[0033] Both ends of the mandrel 2 are fixed to both ends of the inner cone 13 through the radial end assembly and the axial end assembly. The clamping and supporting assembly takes the mandrel 2 as the load-bearing basis to clamp and support the reinforcing hoop 14 inside the inner cone 13 and align the scribing lines. The spot welding positioning device realizes the function of stably positioning the reinforcing hoop 14 inside the inner cone 13 and aligning the scribing lines for spot welding, ensuring the required tolerance requirements of the reinforcing hoop 14 in the inner cone 13 after spot welding, and solving the problem that the position of the reinforcing hoop 14 is inaccurate due to shaking when the worker holds the reinforcing hoop 14 for spot welding.

[0034] The mandrel 2, the clamping and supporting assembly, the radial end assembly and the axial end assembly are all in three groups, and the three groups are evenly distributed at an angle of 120° to stably clamp and support the reinforcing hoop 14, as Figure 2 shown in the distribution schematic diagram.

[0035] The clamping and supporting assembly includes a positioning plate 4 provided with a through hole and sleeved and fixed on the mandrel 2 through a positioning pin. The positioning plate 4 provides a support for the installation and positioning of the reinforcing hoop 14;

[0036] A pressing plate 3 provided with a through hole and slidably sleeved on the mandrel 2;

[0037] A pin 12 fixedly installed on the pressing plate 3 through a pin 10. The pin 10 is connected to the pressing plate 3 and the pin 12 by a mating method, and the pin 12 penetrates through a pin through hole provided on the positioning plate 4;

[0038] A wing nut 11 screwed with the pin 12 penetrating through the positioning plate 4 through a thread pair.

[0039] After the reinforcing hoop 14 is positioned between the pressing plate 3 and the positioning plate 4, tighten the wing nut 11 on the pin 12 so that the pressing plate 3 presses against the reinforcing hoop 14 and is positioned by clamping on the positioning plate 4, realizing that the reinforcing hoop 14 is clamped and supported by the clamping and supporting assembly inside the inner cone 13.

[0040] The radial end assembly includes a positioning ring 1 sleeved on the step at one end of the mandrel 2 and provided with a through hole. The axial end face of the positioning ring 1 is provided with an annular groove for axial installation with the inner cone 13.

[0041] The nuts 8 that screw the positioning ring 1 onto the mandrel 2. There are two nuts 8. Tighten the nuts 8 to press the positioning ring 1 against the axial end face of the inner cone 13.

[0042] The screw 9 that is screwed with the outer periphery of the positioning ring 1 through a thread pair. The screw 9 is screwed from the outer periphery of the positioning ring 1 to lift the positioning ring 1. The annular groove of the positioning ring 1 abuts against the inner diameter surface of the inner cone 13, fixing the mandrel 2 in the inner cone 13, realizing that the radial end assembly is installed on the outer periphery of the inner cone 13 to fix one end of the mandrel 2, forming a basis for fixing and bearing force at one end of the mandrel 2.

[0043] The shaft end assembly includes a support plate 7 screwed with the other end of one end of the mandrel 2 through a thread pair. The support plate 7 is provided with a threaded through hole.

[0044] The top screw 6 rotatably installed in the threaded through hole of the support plate 7. The outer end of the top screw 6 has a rotating handle.

[0045] The pressing block 5 screwed with the end of the top screw 6 through a thread pair.

[0046] The top screw 6 is screwed in with the support plate 7 as the force application point, and the pressing block 5 abuts against the outer peripheral end face of the inner cone 13 to pull the other end of the mandrel 2, realizing that the shaft end assembly is installed on the outer periphery of the inner cone 13 to fix the other end of the mandrel 2, forming a basis for fixing and bearing force at the other end of the mandrel 2.

[0047] During welding, sleeved the positioning ring 1 on one end of the inner cone 13, press the outer wall of the inner cone 13 with two screws 9, press the reinforcing hoop 14 against the positioning plate 4, lock the reinforcing hoop 14 with the pressing plate 3 and the wing nut 11, then use the combination of the pressing block 5 and the top screw 6 to press the other end of the inner cone 13. Use the same method to position the inner cone 13 with another two groups in the same way, and then the next welding work can be carried out.

[0048] After welding is completed, loosen the pressing block 5, the positioning plate 4 and the screw 9, take out the positioning ring 1, and then the positioning device can be taken out.

Claims

1. A spot welding positioning device, characterized in that, A spot welding positioning device for aligning and scribing lines for spot welding to stably position the reinforcing hoop (14) inside the inner cone (13); It includes: a mandrel (2); A clamping and supporting assembly, which is installed on the mandrel (2) in the middle of the inner cone (13). The clamping and supporting assembly takes the mandrel (2) as the force-bearing basis to clamp and support the reinforcing hoop (14) inside the inner cone (13); A radial end assembly, which is installed on the mandrel (2) at one end of the inner cone (13). The radial end assembly is installed on the outer periphery of the radial direction of the inner cone (13) to fix one end of the mandrel (2), forming a force-bearing basis for fixing one end of the mandrel (2); An axial end assembly, which is installed on the mandrel (2) at the other end of the inner cone (13). The axial end assembly is installed on the outer periphery of the axial direction of the inner cone (13) to fix the other end of the mandrel (2), forming a force-bearing basis for fixing the other end of the mandrel (2).

2. The spot welding positioning device according to claim 1, wherein The mandrel (2), the clamping and supporting assembly, the radial end assembly and the axial end assembly are all in three groups, and the three groups are evenly distributed at an angle of 120° to stably clamp and support the reinforcing hoop (14).

3. The spot welding positioning device according to claim 1, characterized in that, 4. The spot welding positioning device according to claim 3, characterized in that: The clamping and supporting assembly includes: a positioning plate (4), a pressing plate (3), a pin (12) and a wing nut (11).

5. The spot welding positioning device according to claim 3, wherein: The positioning plate (4) is sleeved and fixed on the mandrel (2) to provide a support for the installation and positioning of the reinforcing hoop (14).

6. The spot welding positioning device according to claim 3, characterized in that: The pressing plate (3) is provided with a through hole and can slide on the mandrel (2).

7. The spot welding positioning device according to claim 3, wherein: The pin (12) is fixedly installed on the pressing plate (3) through a pin (10), and the pin (12) passes through a pin through hole provided on the positioning plate (4).

8. The spot welding positioning device according to claim 1, wherein: The wing nut (11) is screwed with the pin (12) passing through the positioning plate (4) through a thread pair. The radial end assembly includes a positioning ring (1) provided with a through hole and sleeved on the step at one end of the mandrel (2). The axial end face of the positioning ring (1) is provided with an annular groove for axial installation with the inner cone (13); A nut (8) for screwing the positioning ring (1) on the mandrel (2). The nut (8) is screwed tightly to press the positioning ring (1) against the axial end face of the inner cone (13); 9. The spot welding positioning device according to claim 1, wherein: A screw (9) screwed with the outer periphery of the positioning ring (1) through a thread pair. The screw (9) is screwed from the outer periphery of the radial direction of the positioning ring (1) to lift the positioning ring (1), and the annular groove of the positioning ring (1) abuts against the inner diameter surface of the inner cone (13). The axial end assembly includes a support plate (7) screwed with one end and the other end of the mandrel (2) through a thread pair. The support plate (7) is provided with a threaded through hole; A top screw (6) rotatably installed in the threaded through hole of the support plate (7). The outer end of the top screw (6) has a rotating handle; A pressing block (5) screwed with the end of the top screw (6) through a thread pair.

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