Tool for taking out thread mold core of back door limiting base

Abstract

The utility model discloses a back door limiting base thread mold core taking-out tool which comprises a tool base, a driving rotating shaft and a plurality of mold core twisting shafts which extend upwards in the vertical direction are installed on the tool base, and a transmission assembly is installed in the tool base. The driving rotating shaft can drive the mold core twisting shafts to rotate synchronously through a transmission assembly, mold core installing and positioning structures are arranged at the upper ends of the mold core twisting shafts, base supporting and positioning structures are arranged on the base in a one-to-one correspondence mode and beside the mold core twisting shafts, and a twisting workpiece matching structure is arranged at the upper end of the driving rotating shaft. By adopting the tool for taking out the thread mold cores of the back door limiting bases, firstly, the thread mold cores with the back door limiting bases are mounted on the mold core mounting and positioning structure one by one, and then all the thread mold cores can be taken down from the corresponding back door limiting bases at the same time by rotating the driving rotating shaft; the efficiency of taking out the thread mold core from the back door limiting base is greatly improved, operation is easy, and design is ingenious.

Description

Technical Field

[0001] This utility model relates to the technical field of demolding devices, specifically to a tooling for removing the threaded mold core of a back door limiting base. Background Technology

[0002] The tailgate limiter assembly is a common automotive component, typically consisting of a limiter base, a limiter buffer pad, a limiter rotating rod, and a waterproof pad for the base. The limiter base is integrally molded using an injection molding process. Please refer to [link / reference]. Figures 7-9 Because of the threaded design of the limiting base, a process of separating the threaded mold core is required after the injection molding is completed and the mold is demolded.

[0003] Currently, threaded cores are removed from the limiting base one by one by manually twisting them, which is very inefficient.

[0004] Solving these problems is now a top priority. Utility Model Content

[0005] In view of this, the present invention provides a tooling for removing the threaded mold core of the back door limiting base.

[0006] The technical solution is as follows:

[0007] The first aspect of this application relates to a tooling for removing threaded mold cores from a back door limiting base, comprising a tooling base, on which are mounted a drive shaft extending vertically upward and multiple mold core torsion shafts. A transmission assembly is installed in the tooling base, and the drive shaft can drive each mold core torsion shaft to rotate synchronously through the transmission assembly. Each mold core torsion shaft has a mold core mounting and positioning structure at its upper end. A base support and positioning structure is correspondingly provided on the tooling base next to each mold core torsion shaft. A torsion workpiece mating structure is provided at the upper end of the drive shaft.

[0008] Using the above-mentioned tooling for removing threaded mold cores from the back door limiting base, the threaded mold cores with the back door limiting base are first installed one by one on the mold core mounting and positioning structure. Then, by rotating the active rotating shaft, all the threaded mold cores can be removed from the corresponding back door limiting base at the same time, which greatly improves the efficiency of removing the threaded mold cores from the back door limiting base. The operation is simple and the design is ingenious.

[0009] In some embodiments, the transmission assembly includes a drive gear synchronously mounted on the lower end of the drive shaft and driven gears synchronously mounted on the lower ends of each mold core torsion shaft. Each driven gear is circumferentially distributed around the drive gear and meshes with the drive gear.

[0010] In some embodiments, the driven gears have identical structures, and the diameter of the driving gear is smaller than the diameter of the driven gear.

[0011] In some embodiments, the tooling base has a recessed first bearing seat located at the lower end of the active rotating shaft and a second bearing seat located at the lower end of each mold core torsion shaft. The lower end of the active rotating shaft is mounted in the first bearing seat via the first bearing, and the lower end of each mold core torsion shaft is mounted in the corresponding second bearing seat via the second bearing.

[0012] In some embodiments, the tooling base includes a base body and a base cover plate detachably mounted on the top surface of the base body. The top surface of the base body is recessed to form a drive gear relief groove adapted to the drive gear and driven gear relief grooves adapted to the corresponding driven gears. The drive gear is located in the drive gear relief groove, and each driven gear is located in its corresponding driven gear relief groove. The first bearing seat is recessed at the bottom of the drive gear relief groove, and each second bearing seat is recessed at the bottom of its corresponding driven gear relief groove. The base cover plate at least partially covers the opening of the drive gear relief groove and at least partially covers the opening of each driven gear relief groove.

[0013] In some embodiments, a vertically extending central support is fixedly installed on the top surface of the tooling base, the active rotating shaft is coaxially inserted through the central support, each mold core torsion shaft is distributed circumferentially around the central support, and each base support and positioning structure is a planar structure formed on the circumferential sidewall of the central support.

[0014] In some embodiments, the mold core mounting and positioning structure is a polygonal columnar structure integrally formed on the upper end of the corresponding mold core torsion shaft.

[0015] In some embodiments, the twisting workpiece mating structure is an integrally formed internal hexagon countersunk hole on the upper end face of the drive shaft. Attached Figure Description

[0016] Figure 1 A schematic diagram of the tooling for removing the threaded mold core of the tailgate limit base;

[0017] Figure 2 This is a schematic diagram showing the placement of multiple undisassembled tailgate limiting bases and threaded mold cores on the tailgate limiting base threaded mold core removal fixture.

[0018] Figure 3 A schematic diagram of the tooling for removing the threaded mold core of the back door limit base when rotating the active shaft;

[0019] Figure 4 A schematic diagram showing the tooling for removing the screw core of the rear door limit base after removing the base cover plate;

[0020] Figure 5A schematic diagram showing the tooling used to remove the screw core of the tailgate limit base after disassembling the base cover plate and transmission components;

[0021] Figure 6 This is a structural diagram of the main body of the base;

[0022] Figure 7 This is a schematic diagram showing the assembly of the tailgate limiting base and the threaded mold core.

[0023] Figure 8 This is a structural schematic diagram of the tailgate limiting base;

[0024] Figure 9 This is a schematic diagram of the threaded core. Detailed Implementation

[0025] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0026] like Figure 1 as well as Figures 4-6 As shown, a tooling for removing threaded mold cores from a door limiting base includes a main tooling base 1. The tooling base 1 is equipped with a single drive shaft 2 extending vertically upwards and multiple mold core torsion shafts 3. A transmission assembly is installed in the tooling base 1. The drive shaft 2 can drive each mold core torsion shaft 3 to rotate synchronously via the transmission assembly; that is, by rotating the drive shaft 2, each mold core torsion shaft 3 can be driven to rotate synchronously via the transmission assembly. The upper end of the drive shaft 2 is provided with a torsion workpiece mating structure 22 to facilitate the rotation of the drive shaft 2 by a tool.

[0027] In this embodiment, the twisting workpiece mating structure 22 is preferably an integrally formed hexagonal countersunk hole on the upper end face of the drive shaft 2, that is, the twisting workpiece mating structure 22 is a countersunk hole with an internal hexagonal structure. By inserting an internal hexagonal wrench into the countersunk hole, the drive shaft 2 can be reliably driven to rotate synchronously with it, which is simple and reliable. It should be noted that the twisting workpiece mating structure 22 can also be a common structure such as a bolt head.

[0028] Please see Figures 1-3Each mold core torsion shaft 3 has a mold core mounting and positioning structure 31 at its upper end. This structure is used to position the threaded mold core, meaning that the unseparated back door limiting base and the threaded mold core can be mounted on the mold core mounting and positioning structure 31, allowing the structure to drive the threaded mold core to rotate synchronously with it. A base support and positioning structure 41 is correspondingly provided on the tooling base 1 next to each mold core torsion shaft 3. This structure limits the maximum rotation angle of the back door limiting base. Therefore, when the mold core torsion shaft 3 drives the threaded mold core to rotate synchronously with it, the back door limiting base, supported by the base support and positioning structure 41, will not rotate together. Thus, as the mold core torsion shaft 3 continues to drive the threaded mold core to rotate, the threaded mold core can be separated from the back door limiting base.

[0029] Therefore, by rotating the active rotating shaft 2, all the threaded mold cores can be removed from the corresponding back door limiting base at the same time, which greatly improves the efficiency of removing the threaded mold cores from the back door limiting base. The operation is simple and the design is ingenious.

[0030] Please see Figures 1-4 The transmission assembly includes a drive gear 5 synchronously mounted on the lower end of the drive shaft 2 and driven gears 6 synchronously mounted on the lower ends of each mold core torsion shaft 3. The driven gears 6 are circumferentially distributed around the drive gear 5, and each driven gear 6 meshes with the drive gear 5. Therefore, the drive shaft 2 drives the drive gear 5 to rotate synchronously with it, the drive gear 5 drives each driven gear 6 to rotate simultaneously, and each driven gear 6 drives its corresponding mold core torsion shaft 3 to rotate synchronously with it, making the process simple and reliable.

[0031] In this embodiment, the driven gears 6 have the same structure, that is, the outer diameter of each driven gear 6 is the same, and the number of teeth of each driven gear 6 is the same, so that each threaded mold core can be screwed out from the back door limiting base at almost the same time. At the same time, the diameter of the driving gear 5 is preferably smaller than the diameter of the driven gear 6, so that the operator only needs to use a small amount of force to operate it.

[0032] Please see Figures 4-6 The tooling base 1 has a recessed first bearing seat 111 located at the lower end of the drive shaft 2 and second bearing seats 112 located at the lower ends of each mold core torsion shaft 3. The lower end of the drive shaft 2 is mounted in the first bearing seat 111 via a first bearing 7, that is, each first bearing 7 is press-fitted into its corresponding first bearing seat 111, ensuring reliable installation. Similarly, the lower end of each mold core torsion shaft 3 is mounted in its corresponding second bearing seat 112 via a second bearing 8, that is, each second bearing 8 is press-fitted into its corresponding second bearing seat 112, ensuring reliable installation.

[0033] Please see Figures 1-6The tooling base 1 includes a base body 11 and a base cover plate 12 detachably mounted on the top surface of the base body 11. The top surface of the base body 11 is recessed to form a drive gear relief groove 113 adapted to the drive gear 5 and a driven gear relief groove 114 adapted to the corresponding driven gear 6. The drive gear 5 is located in the drive gear relief groove 113, and each driven gear 6 is located in the corresponding driven gear relief groove 114. The first bearing seat 111 is recessed at the bottom of the drive gear relief groove 113, and each second bearing seat 112 is recessed at the bottom of the corresponding driven gear relief groove 114. The base cover plate 12 at least partially covers the opening of the drive gear relief groove 113 and at least partially covers the opening of each driven gear relief groove 114, thereby ensuring the reliable installation of the transmission components and preventing the drive gear 5 and driven gear 6 from disengaging.

[0034] Furthermore, the base cover plate 12 is locked to the base body 11 by multiple mounting bolts 13, which ensures the reliability of the installation and makes it easy to disassemble and assemble.

[0035] Please see Figures 1-3 The tooling base 1 has a vertically extending central support 4 fixedly installed on its top surface. The active rotating shaft 2 is coaxially inserted through the central support 4. The core torsion shafts 3 are distributed around the central support 4 in the circumferential direction. The base support and positioning structure 41 is a planar structure formed on the circumferential side wall of the central support 4. This design not only ensures the reliable installation of the active rotating shaft 2, but also facilitates the rotation and limiting of the back door limiting base on each core torsion shaft 3. The design is ingenious.

[0036] Furthermore, the central support 4 preferably adopts a polygonal prism structure. In this embodiment, there are four core torsion shafts 3. The four core torsion shafts 3 are evenly distributed around the central support 4 in the circumferential direction. Therefore, the central support 4 is preferably a regular octagonal prism structure. Four of the sides of the central support 4 are base support and positioning structures 41, which can rotate and limit the back door limiting base. This not only has high reliability but is also easy to assemble.

[0037] Please see Figure 4 and Figure 5 The mold core mounting and positioning structure 31 is a polygonal columnar structure integrally formed on the upper end of the corresponding mold core torsion shaft 3, which can ensure the reliability of the threaded mold core installation.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of the present utility model. Those skilled in the art, under the guidance of the present utility model, can make various similar representations without departing from the spirit and claims of the present utility model, and such modifications all fall within the protection scope of the present utility model.

Claims

1. A back door limiting base screw thread mold core taking-out tooling, comprising a tooling base, characterized in that: The tool base is provided with a main driving shaft and a plurality of mold core twisting shafts extending upward in the vertical direction, and a transmission assembly is installed in the tool base. The main driving shaft can drive the mold core twisting shafts to rotate synchronously through the transmission assembly. The upper end of each mold core twisting shaft is provided with a mold core mounting and positioning structure. The tool base is provided with a base support and positioning structure corresponding to each mold core twisting shaft. The upper end of the main driving shaft is provided with a twisted workpiece matching structure.

2. The back door check base screw thread mold core taking-out tooling according to claim 1, characterized in that: The transmission assembly comprises a main driving gear sleeved on the lower end of the main driving shaft and a plurality of driven gears sleeved on the lower end of each mold core twisting shaft. Each driven gear is distributed around the main driving gear in the circumferential direction and is in meshing connection with the main driving gear.

3. The back door check base screw thread mold core taking-out tooling of claim 2, wherein: Each driven gear has the same structure, and the diameter of the main driving gear is smaller than that of the driven gear.

4. The back door check base screw thread mold core taking-out tooling of claim 2, wherein: The tool base is recessed to form a first bearing seat at the lower end of the main driving shaft and a second bearing seat at the lower end of each mold core twisting shaft. The lower end of the main driving shaft is installed in the first bearing seat through the first bearing, and the lower end of each mold core twisting shaft is installed in the corresponding second bearing seat through the second bearing.

5. The back door check base screw thread mold core pulling fixture of claim 4, wherein: The tool base comprises a base body and a base cover plate detachably installed on the top surface of the base body. The top surface of the base body is recessed to form a main driving gear accommodation groove matched with the main driving gear and a driven gear accommodation groove matched with each driven gear. The main driving gear is located in the main driving gear accommodation groove, and each driven gear is located in the corresponding driven gear accommodation groove. The first bearing seat is recessed at the bottom of the main driving gear accommodation groove, and each second bearing seat is recessed at the bottom of the corresponding driven gear accommodation groove. The base cover plate at least partially covers the opening of the main driving gear accommodation groove, and at least partially covers the opening of each driven gear accommodation groove.

6. The back door check base screw thread mold core pulling fixture of claim 1, wherein: The top surface of the tool base is fixedly provided with a vertically extending center support. The main driving shaft is coaxially arranged on the center support, and each mold core twisting shaft is distributed around the circumferential side wall of the center support. Each base support and positioning structure is a planar structure formed on the circumferential side wall of the center support.

7. The back door check base screw thread mold core pulling fixture of claim 1, wherein: Each mold core mounting and positioning structure is a polygonal column structure integrally formed on the upper end of the corresponding mold core twisting shaft.

8. The back door check base screw thread mold core pulling fixture of claim 1, wherein: The twisted workpiece matching structure is an internal hexagonal counterbore integrally formed on the upper surface of the main driving shaft.

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