A mold for automobile manufacturing

Abstract

The application discloses a mold for automobile manufacturing, which comprises a fixing assembly, a telescopic assembly and a water spraying assembly, wherein the fixing assembly comprises a bottom plate, two parallel guide rails are arranged on the bottom plate, and the guide rails are provided with T-shaped grooves; the telescopic assembly comprises a T-shaped block arranged in the T-shaped groove, a cylindrical barrel connected with the T-shaped block, and an extension rod arranged in the cylindrical barrel; a vertical rod is arranged on the bottom plate, a cavity is arranged in the vertical rod, an L-shaped rod is connected in the cavity, and the water spraying assembly is connected at the end of the L-shaped rod; the mold has high applicability, is suitable for processing a series of automobile components of the same type and different sizes, has the effects of cooling, temperature reduction and dust removal during the processing by the water spraying assembly, and is convenient, time-saving and labor-saving in replacement of the spray head.

Description

Technical Field

[0001] This invention relates to the field of automobile manufacturing, and in particular to a mold for automobile manufacturing. Background Technology

[0002] In the production of automotive parts, the molds used for these parts need to be cooled regularly to accelerate the cooling process and improve injection molding efficiency. Liquid spraying is typically used for rapid cooling of these molds. This process involves spraying the molds with liquid while simultaneously rotating them, which is time-consuming and labor-intensive. Furthermore, piling the molds on the ground hinders faster heat dissipation. Since there are numerous automotive parts, most of which are non-standard, existing technologies require different molds for different parts. Therefore, there is an urgent need for a mold that can adapt to various non-standard parts in the automotive manufacturing process. Additionally, the grinding of parts often generates fine dust, which can cause lung diseases if inhaled. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of the embodiments of the present invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section, as well as in the abstract and title of the present application, to avoid obscuring the purpose of this section, the abstract and title of the invention. Such simplifications or omissions shall not be used to limit the scope of the present invention.

[0004] In view of the problems existing in the above and / or prior art, the present invention is proposed.

[0005] Therefore, the technical problem to be solved by the present invention is that different parts in the prior art all require matching processing molds. Therefore, there is an urgent need for a mold that can be adapted to a variety of non-standard parts and applied in the automobile manufacturing process. In addition, when grinding parts, fine dust often appears, which can cause lung diseases if inhaled.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a mold for automobile manufacturing, comprising a fixing component, including a base plate, wherein the base plate is provided with two parallel guide rails, and the guide rails are provided with T-shaped grooves; The telescopic assembly includes a T-shaped block located in a T-slot, the T-shaped block being connected to a cylindrical tube, the cylindrical tube being perpendicular to the base plate, and an extension rod being disposed inside the cylindrical tube.

[0007] In a preferred embodiment of the automobile manufacturing mold of the present invention, the cylindrical tube is provided with a through strip groove along the axial direction, and the extension rod is provided with a protrusion on its side, the protrusion passing through the strip groove.

[0008] As a preferred embodiment of the automobile manufacturing mold of the present invention, a limiting platform is provided outside the cylindrical tube, a rotating component is provided between the limiting platform and the guide rail, and the rotating component is provided with a through groove and sleeved on the outside of the cylindrical tube.

[0009] In a preferred embodiment of the automobile manufacturing mold of the present invention, a spiral groove is provided on the inner side of the through groove, and the protrusion is embedded in the spiral groove.

[0010] In a preferred embodiment of the automobile manufacturing mold of the present invention, the extension rod end is provided with a clamping block, the clamping block is provided with a connecting ring, and the connecting ring is rotatably connected to the extension rod; the clamping block side is provided with a clamping groove, and the clamping block is provided with a first screw hole that intersects with the clamping groove, and the first screw hole is connected with a first bolt.

[0011] As a preferred embodiment of the automobile manufacturing mold of the present invention, the guide rail side is provided with a plurality of second screw holes that penetrate the T-shaped groove, and a second bolt is provided in the second screw hole.

[0012] In a preferred embodiment of the automobile manufacturing mold of the present invention, a vertical rod is provided on the base plate, a cavity is provided inside the vertical rod, an L-shaped rod is connected inside the cavity, and a water spraying assembly is connected to the end of the L-shaped rod.

[0013] As a preferred embodiment of the automobile manufacturing mold of the present invention, a third screw hole is provided on the side of the cavity, and a third bolt is provided in the third screw hole.

[0014] As a preferred embodiment of the automobile manufacturing mold of the present invention, the water spraying assembly includes a fixed seat connected to the end of the L-shaped rod and a connecting seat detachably connected to the fixed seat. The fixed seat is provided with a through first through hole, and the connecting seat is provided with a through second through hole. The first through hole is connected to a water inlet pipe, and the end of the second through hole away from the first through hole is connected to a nozzle. The nozzle is provided with a plurality of spray holes.

[0015] As a preferred embodiment of the automobile manufacturing mold of the present invention, the fixed seat is provided with a first long groove extending axially on its outer periphery, the first long groove extending to the end of the fixed seat, the fixed seat is also provided with an arc-shaped groove coaxial with the first through hole, one end of the arc-shaped groove intersects with the first long groove, and an annular groove is provided at the end of the first long groove and the arc-shaped groove away from the connecting seat. The outer side of the connecting seat is provided with a second long groove, one end of which is provided with a hinge hole. A rotating rod is provided inside the second long groove. One end of the rotating rod is provided with a boss that is hinged to the hinge hole, and the other end of the rotating rod is provided with a protrusion. One end of the second long groove is provided with a slot in the direction of the connecting seat axis. One end of the rotating rod with the boss is provided with a stop bar perpendicular to the rotating rod. The stop bar is embedded in the slot, and a first spring is provided between the stop bar and the slot.

[0016] The beneficial effects of this invention are: strong applicability, suitable for processing a series of automotive components of the same type but different sizes, and cooling, temperature reduction and dust removal effects through the water spray assembly during the processing. In addition, the nozzle is easy to replace, has a clever structure, and saves time and effort. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the structure of an automobile manufacturing mold according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the overall structure of an automobile manufacturing mold according to one embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of a telescopic component in an automobile manufacturing mold according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of a water spraying assembly in an automobile manufacturing mold according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the fixing seat in an automobile manufacturing mold according to an embodiment of the present invention; Figure 6 A cross-sectional structural diagram of a fixing seat in an automobile manufacturing mold according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the completed connection of the water spray assembly in an automobile manufacturing mold according to one embodiment of the present invention. Detailed Implementation

[0018] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0020] Secondly, the present invention will be described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure will be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0021] Furthermore, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments. Example 1

[0022] Reference Figures 1-3 This embodiment provides a mold for automobile manufacturing, including a fixing component 100 and a telescopic component 200. The fixing component 100 includes a base plate 101, on which two parallel guide rails 102 are provided, and the guide rails 102 are provided with T-shaped grooves 102a. The telescopic component 200 includes T-shaped blocks 201 located in the T-shaped grooves 102a. The T-shaped blocks 201 can slide in the T-shaped grooves 102a. In this embodiment, each T-shaped groove 102a is provided with two T-shaped blocks 201.

[0023] The T-shaped block 201 is connected to a cylindrical tube 202, which is perpendicular to the base plate 101. An extension rod 203 is installed inside the cylindrical tube 202. The extension rod 203 and the cylindrical tube 202 form a telescopic structure.

[0024] The cylindrical barrel 202 is axially provided with a through strip-shaped groove 202a, a protrusion 203a is provided on the side surface of the extension rod 203, and the protrusion 203a passes through the strip-shaped groove 202a to limit the rotation of the extension rod 203. A limiting table 202b is provided outside the cylindrical barrel 202, a rotating member 204 is provided between the limiting table 202b and the guide rail 102, the rotating member 204 is provided with a through through groove 204a and is sleeved outside the cylindrical barrel 202. A spiral groove 204b is provided on the inner side of the through groove 204a, and the protrusion 203a is embedded in the spiral groove 204b. Therefore, by rotating the cylindrical barrel 202, the protrusion 203a cooperates with the spiral groove 204b to cause the extension rod 203 to move up and down. Since some parts of an automobile have irregular structures, normal molds cannot be used for clamping when performing spraying, grinding, drilling and other operations on them. Therefore, for irregularly shaped parts, they need to be placed on four telescopic assemblies 200, and the telescopic length of the telescopic assemblies 200 is adjusted according to the actual placement position, so that all the telescopic assemblies 200 can contact the automobile parts.

[0025] Further, a clamping block 205 is provided at the end of the extension rod 203, the clamping block 205 is provided with a connecting ring 205a, and the connecting ring 205a is rotatably connected with the extension rod 203; a clamping groove 205b is provided on the side surface of the clamping block 205, so that the clamping block 205 forms a "匚"-shape, and the edge of the part can be placed in the clamping groove 205b.

[0026] Wherein, the clamping block 205 is provided with a first threaded hole 205c intersecting with the clamping groove 205b, the first threaded hole 205c is connected with a first bolt 206, and fastening is performed through the first bolt 206.

[0027] Preferably, a plurality of second threaded holes 102b penetrating through the T-shaped groove 102a are provided on the side surface of the guide rail 102, and a second bolt 207 is provided in the second threaded hole 102b, which can fix the position of the T-shaped block 201.

[0028] Preferably, a vertical rod 103 is provided on the bottom plate 101, a cavity 103a is provided in the vertical rod 103, an L-shaped rod 104 is connected in the cavity 103a, and a water spray assembly 300 is connected to the end of the L-shaped rod 104. A part of the L-shaped rod 104 can slide up and down in the cavity 103a to adjust the height of the water spray assembly 300, and the water spray assembly 300 can perform functions such as cleaning, dust reduction and temperature reduction for the parts when the mold is working.

[0029] Wherein, a third threaded hole 103b is opened on the side surface of the cavity 103a, and a third bolt 105 is provided in the third threaded hole 103b, which facilitates fixing the height of the water spray assembly 300. Example 2

[0030] Reference Figures 1-7This is the second embodiment of the present invention, which is based on the previous embodiment and differs from the previous embodiment in that: The water spray assembly 300 includes a fixed base 301 connected to the inlet and a connecting base 302 detachably connected to the fixed base 301. Both the fixed base 301 and the connecting base 302 are cylindrical. The fixed base 301 is provided with a through first through hole 301a, and the connecting base 302 is provided with a through second through hole 302a. The first through hole 301a is connected to a water inlet pipe 400, which is connected to a water tank or water pump to supply water to it.

[0031] A nozzle 500 is connected to the end of the second through hole 302a away from the first through hole 301a. The nozzle 500 has several spray holes 501. Water flows through the nozzle 500 and is atomized and sprayed through the spray holes 501. In practical applications, various nozzles 500 of different specifications can be prepared. For example, larger orifice holes 501 can provide water flow for rinsing, while smaller orifice holes can be used for dust suppression and cooling.

[0032] The fixing base 301 has a first elongated groove 301b extending axially on its outer periphery. Two first elongated grooves 301b are evenly distributed and extend to the end of the fixing base 301. The fixing base 301 also has an arc-shaped groove 301c coaxial with the first through hole 301a. In this embodiment, the central angle of the arc-shaped groove 301c is 90°. One end of the arc-shaped groove 301c intersects with the first elongated groove 301b. The ends of the first elongated groove 301b and the arc-shaped groove 301c away from the connecting base 302 are provided with an annular groove 301d. The inner diameter of the arc-shaped groove 301c is larger than the diameter of the first through hole 301a, the outer diameter of the arc-shaped groove 301c is smaller than the outer diameter of the fixing base 301, and the diameter of the annular groove 301d is smaller than the inner diameter of the arc-shaped groove 301c.

[0033] Correspondingly, the outer side of the connecting seat 302 is provided with a second elongated groove 302b. There are two second elongated grooves 302b. One end of the second elongated groove 302b is provided with a hinge hole 302c. A rotating rod 303 is provided inside the second elongated groove 302b. One end of the rotating rod 303 is provided with a boss 303a that is hinged to the hinge hole 302c. The other end of the rotating rod 303 is provided with a protrusion 303b. Therefore, when the connecting seat 302 is connected to the fixed seat 301, the rotating rod 303 is rotated to embed it into the first elongated groove 301b. At this time, the protrusion 303b is embedded into the annular groove 301d. Then, by rotating the connecting seat 302, the rotating rod 303 is rotated into the arc-shaped groove 301c, so that the connecting seat 302 can be connected and fixed.

[0034] Furthermore, one end of the second elongated groove 302b is provided with a slot 302d facing the axis of the connecting seat 302. One end of the rotating rod 303 with a boss 303a is provided with a stop bar 303c perpendicular to the rotating rod 303. The stop bar 303c is embedded in the slot 302d, and a first spring 304 is provided between the stop bar 303c and the slot 302d. The first spring 304 is a compression spring. Under the action of the first spring 304, the rotating rod 303 deflects around the hinge hole 302c. When the rotating rod 303 is rotated to the first elongated groove 301b, it will automatically separate under the action of the first spring 304.

[0035] Furthermore, an adjusting ring 305 is sleeved on the outside of the connecting seat 302. The adjusting ring 305 can slide axially. A first boss 302e is provided at the end of the connecting seat 302 away from the fixed seat 301. A second spring 306 is provided between the first boss 302e and the adjusting ring 305. The second spring 306 is a compression spring. Under the action of the second spring 306, the adjusting ring 305 moves towards the rotating rod 303, and the rotating rod 303 retracts into the second long groove 302b, which facilitates better connection.

[0036] The connecting seat 302 is provided with a third long groove 302f that penetrates the second through hole 302a, and a limiting post 305a is provided on the inner side of the adjusting ring 305, with the limiting post 305a embedded in the third long groove 302f.

[0037] Furthermore, a first end face ratchet 301e is fixedly installed in the first through hole 301a. The first end face ratchet 301e is hollow in the middle. A movable cylinder 307 is installed in the second through hole 302a. A second end face ratchet 307a is installed at the end of the movable cylinder 307 near the first end face ratchet 301e. When the second end face ratchet 307a and the first end face ratchet 301e are connected, the unidirectional rotation of the second end face ratchet 307a can be restricted, that is, the rotation rod 303 is restricted from rotating from the arc groove 301c to the first long groove 301b.

[0038] The movable cylinder 307 has a guide post 307b on its outer side and a guide groove 302g on its inner side of the second through hole 302a. The guide post 307b is embedded in the guide groove 302g, restricting the rotation of the movable cylinder 307 so that it can only move axially. A limiting ring platform 302h is provided at the end of the second through hole 302a away from the fixed seat 301. A third spring 308 is provided between the limiting ring platform 302h and the movable cylinder 307. The third spring 308 is a compression spring that can push the movable cylinder 307 to engage the second end face ratchet 307a and the first end face ratchet 301e.

[0039] Furthermore, an annular groove 307c is provided on the outer side of the movable cylinder 307, and a third through hole 305c is provided on the limiting post 305a, which extends radially through the adjusting ring 305. An adjusting pin 309 is provided in the third through hole 305c. One end of the adjusting pin 309 can be inserted into the annular groove 307c. After the adjusting pin 309 is inserted into the annular groove 307c, the adjusting ring 305 is moved away from the fixed seat 301. The second end face ratchet 307a disengages from the first end face ratchet 301e, and the rotational freedom of the connecting seat 302 is not restricted. Rotating the connecting seat 302 causes the rotating rod 303 to enter the first long groove 301b, which will automatically separate under the action of the first spring 304.

[0040] Preferably, a cylindrical groove 305d is provided in the third through hole 305c, and a limiting shoulder 309a is provided on the portion of the adjusting pin 309 located in the cylindrical groove 305d. A fourth spring 309b is provided between the limiting shoulder 309a and the cylindrical groove 305d. The fourth spring 309b is a compression spring. The fourth spring 309b pushes the limiting shoulder 309a to restrict one end of the adjusting pin 309 from being embedded in the annular groove 307c. In this way, even if the adjusting ring 305 is moved away from the fixed seat 301, the water spray assembly 300 will not separate. Only when the adjusting pin 309 is pressed and inserted into the annular groove 307c can the adjusting ring 305 move away from the first end face ratchet 301e, thereby allowing the water spray assembly 300 to separate.

[0041] In this embodiment, the first long groove 301b, the arc-shaped groove 301c, and the second long groove 302b are evenly distributed along the axis.

[0042] The implementation method of this embodiment is as follows: Before the fixed seat 301 and the connecting seat 302 are connected, the adjusting ring 305 presses the rotating rod 303 so that the rotating rod 303 is located in the second long groove 302b. When the adjusting ring 305 is moved away from the rotating rod 303, the rotating rod 303 pops out. Then, the rotating rod 303 is aligned with the first long groove 301b. The adjusting ring 305 is released. Under the action of the spring, the protrusion 303b of the rotating rod 303 is inserted into the annular groove 301d. At this time, the first end face ratchet 301e and the second end face ratchet 307a are engaged. Then, the adjusting ring 305 is rotated. The ring 305 causes the rotating rod 303 to move into the arc groove 301c, and the second end face ratchet 307a can rotate along the teeth of the first end face ratchet 301e, and restricts the flipping of the second end face ratchet 307a. At this time, the fixed seat 301 and the connecting seat 302 are connected. When it is necessary to separate the fixed seat 301 and the connecting seat 302, the adjusting pin 309 is pressed to insert the adjusting pin 309 into the annular groove 307c, so that the adjusting ring 305 can move the moving cylinder 307 away from the first end face ratchet 301e, thereby operating the water spray assembly 300 to separate.

[0043] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0044] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0045] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A mold for automobile manufacturing, characterized in that: include, The fixing component (100) includes a base plate (101) on which two parallel guide rails (102) are provided, and the guide rails (102) are provided with T-slots (102a). The telescopic assembly (200) includes a T-shaped block (201) located in a T-shaped groove (102a), the T-shaped block (201) being connected to a cylindrical tube (202), the cylindrical tube (202) being perpendicular to the base plate (101), and an extension rod (203) being provided inside the cylindrical tube (202). A vertical rod (103) is provided on the base plate (101), a cavity (103a) is provided inside the vertical rod (103), an L-shaped rod (104) is connected inside the cavity (103a), and a water spray assembly (300) is connected to the end of the L-shaped rod (104). A third screw hole (103b) is provided on the side of the cavity (103a), and a third bolt (105) is provided in the third screw hole (103b). The water spray assembly (300) includes a fixed base (301) connected to the end of the L-shaped rod (104) and a connecting base (302) detachably connected to the fixed base (301). The fixed base (301) is provided with a first through hole (301a), and the connecting base (302) is provided with a second through hole (302a). The first through hole (301a) is connected to a water inlet pipe (400), and the end of the second through hole (302a) away from the first through hole (301a) is connected to a nozzle (500). The nozzle (500) is provided with a plurality of spray holes (501). The fixing seat (301) is provided with a first long groove (301b) extending axially on its outer periphery. The first long groove (301b) extends to the end of the fixing seat (301). The fixing seat (301) is also provided with an arc-shaped groove (301c) coaxial with the first through hole (301a). One end of the arc-shaped groove (301c) intersects with the first long groove (301b). The ends of the first long groove (301b) and the arc-shaped groove (301c) away from the connecting seat (302) are provided with an annular groove (301d). The connecting seat (302) has a second long groove (302b) on its outer side. One end of the second long groove (302b) has a hinge hole (302c). A rotating rod (303) is provided inside the second long groove (302b). One end of the rotating rod (303) has a boss (303a) that is hinged to the hinge hole (302c). The other end of the rotating rod (303) has a protrusion (303b). One end of the second long groove (302b) has a slot (302d) facing the axis of the connecting seat (302). One end of the rotating rod (303) with the boss (303a) has a stop bar (303c) that is perpendicular to the rotating rod (303). The stop bar (303c) is embedded in the slot (302d). A first spring (304) is provided between the stop bar (303c) and the slot (302d). An adjusting ring (305) is sleeved on the outside of the connecting seat (302). The adjusting ring (305) can slide along the axial direction. A first boss (302e) is provided at the end of the connecting seat (302) away from the fixed seat (301). A second spring (306) is provided between the first boss (302e) and the adjusting ring (305). The connecting seat (302) is provided with a third long groove (302f) that penetrates the second through hole (302a), and a limit post (305a) is provided on the inner side of the adjusting ring (305), and the limit post (305a) is embedded in the third long groove (302f); A first end face ratchet (301e) is fixedly installed in the first through hole (301a). The first end face ratchet (301e) is hollow in the middle. A movable cylinder (307) is installed in the second through hole (302a). A second end face ratchet (307a) is installed at the end of the movable cylinder (307) near the first end face ratchet (301e). When the second end face ratchet (307a) and the first end face ratchet (301e) are connected, the unidirectional rotation of the second end face ratchet (307a) can be restricted, that is, the rotation rod (303) is restricted from rotating from the arc groove (301c) to the first long groove (301b). A guide post (307b) is provided on the outside of the movable cylinder (307), and a guide groove (302g) is provided on the inside of the second through hole (302a). The guide post (307b) is embedded in the guide groove (302g) to restrict the rotation of the movable cylinder (307) so that it can only move along the axial direction. A limiting ring platform (302h) is provided at one end of the second through hole (302a) away from the fixed seat (301). A third spring (308) is provided between the limiting ring platform (302h) and the movable cylinder (307). An annular groove (307c) is provided on the outside of the movable cylinder (307), and a third through hole (305c) is provided on the limiting post (305a) that runs radially through the adjusting ring (305). An adjusting pin (309) is provided inside the third through hole (305c). A cylindrical groove (305d) is provided in the third through hole (305c). The portion of the adjusting pin (309) located in the cylindrical groove (305d) is provided with a limiting shoulder (309a). A fourth spring (309b) is provided between the limiting shoulder (309a) and the cylindrical groove (305d).

2. The automobile manufacturing mold according to claim 1, characterized in that: The cylindrical tube (202) is provided with a through-slot (202a) along the axial direction, and the extension rod (203) is provided with a protrusion (203a) on the side, the protrusion (203a) passing through the slot (202a).

3. The automobile manufacturing mold according to claim 2, characterized in that: A limiting platform (202b) is provided outside the cylindrical tube (202). A rotating component (204) is provided between the limiting platform (202b) and the guide rail (102). The rotating component (204) is provided with a through groove (204a) and is sleeved on the outside of the cylindrical tube (202).

4. The automobile manufacturing mold according to claim 3, characterized in that: A spiral groove (204b) is provided on the inner side of the through groove (204a), and the protrusion (203a) is embedded in the spiral groove (204b).

5. The automobile manufacturing mold according to claim 4, characterized in that: The extension rod (203) is provided with a clamping block (205) at its end. The clamping block (205) is provided with a connecting ring (205a) and the connecting ring (205a) is rotatably connected to the extension rod (203). The clamping block (205) is provided with a clamping groove (205b) on its side. The clamping block (205) is provided with a first screw hole (205c) that intersects with the clamping groove (205b). The first screw hole (205c) is connected with a first bolt (206).

6. The automobile manufacturing mold according to claim 5, characterized in that: The guide rail (102) has several second screw holes (102b) that penetrate the T-shaped groove (102a) on its side, and a second bolt (207) is installed in the second screw hole (102b).

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