Car door lock welding and positioning tool

Abstract

The utility model discloses a car door lock welding positioning tool which comprises a bottom plate, a positioning pin and a positioning block, the bottom plate is provided with a positioning face tightly attached to the outer side face of a door frame sealing beam, positioning holes are formed in the positioning face, the positioning holes correspond to at least two via holes of the door frame sealing beam, and the positioning pin is arranged on the positioning face. The positioning holes penetrate through the two sides of the bottom plate; the positioning pin is arranged in the positioning hole and the via hole corresponding to the positioning hole; the positioning block is arranged on one side of the bottom plate, and the other end of the positioning block is fixed to the side wall of the door frame sealing beam. The door lock check block nut plate solves the technical problems that when an existing door lock check block nut plate is welded to a door frame sealing beam, only a door frame sealing beam via hole is used as the reference, positioning is inaccurate, and consequently a vehicle door is opened heavily and rebounds frequently.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile welding manufacturing, in particular to a welding positioning tool for a vehicle door lock. Background Art

[0002] During the welding and manufacturing process of automobiles, problems such as heavy door opening and door rebound frequently occur. Investigations and studies have found that the side clearance between the door and the door frame sealing beam has a significant impact on the above problems, and the size of the side clearance between the door and the door frame sealing beam is mainly determined by the installation position of the door lock block. At present, the door lock block nut plate used to connect the door lock block and the door frame sealing beam is welded with the through hole on the door frame sealing beam as the positioning reference, and the manufacturing error of the door frame sealing beam itself and the accumulation of positioning deviations will cause the door lock block nut plate to be inaccurately positioned. For example, the Chinese utility model patent "Locking nut plate assembly, corresponding reinforcement plate assembly, adjustment device and automobile" disclosed with the authorization announcement number CN204357223U.

[0003] To sum up, it is necessary to design a positioning tool for door lock welding to avoid inaccurate positioning caused by error accumulation, thereby affecting the side clearance between the door and the door frame sealing beam, resulting in technical problems such as heavy door opening and door rebound. Utility Model Content

[0004] In view of this, the utility model provides a vehicle door lock welding positioning tool, which is used to locate the welding position of the door lock nut plate on the door frame sealing beam. The positioning tool uses the side outer plate of the door frame sealing beam and the through hole of the door frame sealing beam as a reference, respectively, to solve the technical problem that the existing door lock block nut plate is inaccurately positioned when welded to the door frame sealing beam only based on the through hole of the door frame sealing beam, thereby causing frequent heavy door opening and door rebound.

[0005] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0006] A vehicle door lock welding positioning tool is used to locate the welding position of a door lock nut plate on a door frame sealing beam, the positioning tool comprising:

[0007] A bottom plate, the bottom plate having a positioning surface that is closely fitted with the outer side surface of the door frame sealing beam, the positioning surface being formed with positioning holes, the positioning holes corresponding to at least two through holes of the door frame sealing beam, and the positioning holes penetrating through both sides of the bottom plate;

[0008] A positioning pin, the positioning pin being arranged in the positioning hole and in the via hole corresponding to the positioning hole;

[0009] A positioning block is arranged on one side of the bottom plate, and the other end of the positioning block is fixed to the side periphery of the door frame sealing beam.

[0010] In some embodiments, the positioning holes are formed at both upper and lower ends of the positioning surface, and the two positioning holes correspond to the upper and lower through holes of the door frame sealing beam respectively.

[0011] In some embodiments, the center distance between the two positioning holes is 92 mm.

[0012] In some embodiments, there are two positioning blocks, and the two positioning blocks are arranged on one side of the bottom plate and located between the two positioning holes.

[0013] In some embodiments, the distance between each positioning block and the center of the positioning hole closest to it in the Y direction is 35 mm.

[0014] In some embodiments, both of the two positioning blocks are magnetic blocks, and the magnetic blocks are fixed to the side enclosure of the door frame sealing beam by magnetic attraction.

[0015] In some embodiments, a fixing portion bent inwardly is formed on one side of each positioning block connected to the side surround of the door frame sealing beam, and the fixing portion is used to be clamped with the side surround of the door frame sealing beam.

[0016] In some embodiments, the diameter of the locating pin is 6.5 mm.

[0017] In some embodiments, the positioning tool further includes a handrail, and the handrail is installed on a side of the bottom plate away from the door frame sealing beam.

[0018] In some embodiments, the bottom plate is a rectangular plate whose width matches the width of the outer side surface of the door frame sealing beam.

[0019] Compared with the prior art, the beneficial effects of the utility model mainly include:

[0020] The utility model provides a vehicle door lock welding positioning tool, which is used to locate the welding position of the door lock nut plate on the door frame sealing beam. When in use, the positioning tool is affixed to the outer side surface of the door frame sealing beam, and the door lock nut plate to be welded is affixed to the inner side surface of the door frame sealing beam. The door lock nut plate is positioned in the Y direction and the X direction respectively by fixing the positioning block to the side surround of the door frame sealing beam and inserting the positioning pin into the positioning hole and the through hole corresponding to the positioning hole. In this way, the problem of inaccurate positioning of the door lock block nut plate caused by the accumulation of manufacturing errors and positioning deviations of the door frame sealing beam itself can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1This is a structural schematic diagram of the door lock nut plate being installed on the door frame sealing beam;

[0022] Figure 2 for Figure 1 Reverse view of ;

[0023] Figure 3 This is a schematic diagram of the structure of the positioning tooling described in this embodiment;

[0024] Figure 4 This is a schematic diagram of the structure in which the positioning tooling described in this embodiment is installed on the sealing beam of the door frame.

[0025] 1. positioning tool, 11. bottom plate, 12. positioning pin, 13. positioning block, 131. fixing part, 14. positioning hole, 15. handrail;

[0026] 2. Door lock block nut plate, 21. Nut;

[0027] 3. Door frame sealing beam, 31. Through hole, 32. Outer panel. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0029] Figure 1 The schematic diagram of the structure of the door lock stopper nut plate 2 installed on the door frame sealing beam 3 in the automobile welding manufacturing is as follows Figure 1 As shown, the door lock block nut plate 2 is installed on the inner side of the door frame sealing beam 3, and is required to be completely fitted with the inner side of the door frame sealing beam 3, and the three nuts 21 of the door lock block nut plate 2 should be matched with the through holes 31 of the door frame sealing beam 3 respectively; that is, the ideal result presented from the outside of the door frame sealing beam 3 is that the nut 21 is concentric with the through hole 31, as shown in FIG. Figure 2 However, due to the manufacturing error of the door frame sealing beam 3 itself, the actual result is often that the nut 21 and the through hole 31 are not concentric or even misaligned, resulting in inaccurate positioning of the door lock block nut plate 2, and a large gap between the side door and the side of the door frame sealing beam 3 after welding, resulting in heavy door opening and door rebound problems.

[0030] In order to solve the above technical problems, the utility model designs a positioning tool 1 for welding a vehicle door lock, which is used to locate the welding position of the door lock block nut plate 2 on the door frame sealing beam 3. Figure 3As shown, the positioning tool 1 includes a base plate 11, a positioning pin 12 and a positioning block 13. The base plate 11 has a positioning surface that is tightly fitted with the outer side surface of the door frame sealing beam 3, and a positioning hole 14 is formed on the positioning surface. The positioning hole 14 corresponds to at least two through holes 31 of the door frame sealing beam 3, that is, as in the present embodiment, there are three through holes 31, then the positioning hole 14 corresponds to any two of the through holes 31, and the positioning hole 14 runs through both sides of the base plate 11, that is, the positioning hole 14 is a through hole opened on the base plate 11; the positioning pin 12 is arranged in the positioning hole 14 and in the through hole 31 corresponding to the positioning hole 14, and the door lock block nut plate 2 is positioned in the X direction with the positioning hole 14 and the through hole 31 as the reference; the positioning block 13 is arranged on one side of the base plate 11, and the other end of the positioning block 13 is fixed to the side periphery of the door frame sealing beam 3, and the door lock block nut plate 2 is positioned in the Y direction with the side periphery as the reference.

[0031] The positioning fixture 1 provided by the utility model is used to determine the welding position of the door lock block nut plate 2 on the door frame sealing beam 3. By opening a positioning hole 14 on the positioning surface and inserting the positioning pin 12 into the positioning hole 14 and the through hole 31, the door lock block nut plate 2 can be positioned in the X direction. By fixing the positioning block 13 to the side enclosure of the door frame sealing beam 3, the door lock block nut plate 2 can be positioned in the Y direction. Compared with the method of the prior art that only uses the through hole 31 as the positioning reference, the positioning fixture 1 of the utility model is used for positioning to avoid the manufacturing error of the door frame sealing beam 3 itself and the inaccurate positioning caused by the accumulation of positioning deviations, so that the side enclosure gap between the side door and the door frame sealing beam 3 after welding meets the requirements, avoiding the problem of heavy door opening and door rebound.

[0032] In a preferred embodiment, the positioning holes 14 are formed at both upper and lower ends of the positioning surface, and the two positioning holes 14 correspond to the upper and lower through holes 31 of the door frame sealing beam 3 respectively.

[0033] In a preferred embodiment, the center distance between the two positioning holes 14 is 92 mm.

[0034] In a preferred embodiment, there are two positioning blocks 13 , and the two positioning blocks 13 are disposed on one side of the bottom plate 11 and between the two positioning holes 14 .

[0035] In a preferred embodiment, the distance between each positioning block 13 and the center of the positioning hole 14 closest to it in the Y direction is 35 mm.

[0036] In a preferred embodiment, the two positioning blocks 13 are both magnetic blocks, and the magnetic blocks are fixed to the outer plate 32 of the side of the door frame sealing beam 3 by magnetic attraction.

[0037] In a preferred embodiment, a fixing portion 131 bent inwardly is formed on one side of each positioning block 13 connected to the side of the door frame sealing beam 3, and the fixing portion 131 is used to clamp with the side of the door frame sealing beam 3 to make the connection more secure.

[0038] In a preferred embodiment, the diameter of the positioning pin 12 is 6.5 mm.

[0039] In a preferred embodiment, the positioning tool 1 further includes a handrail 15 , and the handrail 15 is installed on a side of the bottom plate 11 away from the door frame sealing beam 3 to facilitate operation.

[0040] In a preferred embodiment, the bottom plate 11 is a rectangular plate whose width matches the width of the outer side surface of the door frame sealing beam 3 .

[0041] In summary, if Figure 4 As shown, when using the positioning fixture 1 provided by the utility model to locate the welding position of the door lock block nut plate 2 on the door frame sealing beam 3, the positioning surface of the positioning fixture 1 is attached to the outer side of the door frame sealing beam 3, so that the positioning hole 14 is concentric with the through hole 31 of the door frame sealing beam 3, the positioning pin 12 is inserted into the concentric positioning hole 14 and the through hole 31, and then the positioning fixture 1 is fixed on the door frame sealing beam 3 by the positioning block 13 to limit its positioning in the Y direction, and the door lock block nut plate 2 is attached to the inner side of the door frame sealing beam 3, and the screw hole of the mounting nut 21 is kept concentric with the positioning hole 14 and the through hole 31. At this time, the relative position of the door lock block nut plate 2 and the door frame sealing beam 3 is the precise welding position, and the welding operation can be performed according to this position.

[0042] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A door lock welding positioning tool for locating the welding position of the door lock nut plate on the door frame sealing beam, characterized in that: The positioning tooling comprises: A bottom plate, the bottom plate having a positioning surface that is closely fitted with the outer side surface of the door frame sealing beam, the positioning surface being formed with positioning holes, the positioning holes corresponding to at least two through holes of the door frame sealing beam, and the positioning holes penetrating through both sides of the bottom plate; A positioning pin, the positioning pin being arranged in the positioning hole and in the via hole corresponding to the positioning hole; A positioning block is arranged on one side of the bottom plate, and the other end of the positioning block is fixed to the side periphery of the door frame sealing beam.

2. The vehicle door lock welding and positioning tool according to claim 1, characterized in that: The positioning holes are formed at both upper and lower ends of the positioning surface, and the two positioning holes correspond to the upper and lower through holes of the door frame sealing beam respectively.

3. The vehicle door lock welding positioning tool according to claim 2, characterized in that: The center distance between the two positioning holes is 92 mm.

4. The vehicle door lock welding positioning tool according to claim 3, characterized in that: There are two positioning blocks, which are arranged on one side of the bottom plate and between the two positioning holes.

5. The vehicle door lock welding positioning tool according to claim 4, characterized in that: The distance between each positioning block and the center of the positioning hole closest to it in the Y direction is 35 mm.

6. The vehicle door lock welding positioning tool according to claim 5, characterized in that: The two positioning blocks are both magnetic blocks, and the magnetic blocks are fixed to the side enclosures of the door frame sealing beam by magnetic attraction.

7. The vehicle door lock welding positioning tool according to claim 6, characterized in that: A fixing portion bent inwardly is formed on one side of each positioning block connected to the side surround of the door frame sealing beam, and the fixing portion is used for clamping with the side surround of the door frame sealing beam.

8. The vehicle door lock welding positioning tool according to claim 1, characterized in that: The diameter of the positioning pin is 6.5 mm.

9. The vehicle door lock welding positioning tool according to claim 1, characterized in that: The positioning tool also includes a handrail, which is installed on a side of the bottom plate away from the door frame sealing beam.

10. The vehicle door lock welding positioning tool according to claim 1, characterized in that: The bottom plate is a rectangular plate whose width matches the width of the outer side surface of the door frame sealing beam.

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