A wax injection mold clamping and centering fixture and a wax injection machine

Abstract

The utility model discloses a kind of wax injection mold clamping centering clamps and wax injection machines, including first bearing table and second bearing table;First bearing table is equipped with first lifting power component, first clamping arm and second clamping arm;First lifting power component is connected with lifting frame;First clamping arm, second clamping arm are slidably articulated with lifting frame respectively;Two first clamping arms are transmission connection between;Second bearing table is equipped with baffle and support frame;Baffle middle part is equipped with wax injection gap;Baffle top and support frame top are equipped with compacting mechanism;Second bearing table is equipped with first guide hole and second guide hole;First clamping arm is arranged in first guide hole;Second clamping arm is arranged in second guide hole;Second bearing table is equipped with first clamping drive component;First bearing table is equipped with second clamping drive component;First clamping drive component is connected with first clamping arm;Second clamping drive component is connected with second clamping arm;Ensure the reliable forming of wax mold, beneficial to reduce the defective rate of wax mold.

Description

Technical Field

[0001] This utility model relates to the field of wax injection technology, specifically to a wax injection mold clamping and centering fixture and a wax injection machine. Background Technology

[0002] Wax injection molding is a crucial step in wax model preparation. This process typically involves using wax injection equipment to pour molten wax into a specific wax injection mold cavity. After the wax cools and solidifies, the desired wax model is formed. To ensure the precision of the wax injection operation and the quality of the wax model, the wax injection mold must be securely clamped and precisely positioned on the worktable of the wax injection equipment. Currently, clamps are commonly used to hold and fix the wax injection mold.

[0003] However, the fixtures in existing wax injection equipment have significant shortcomings. These fixtures generally suffer from insufficient clamping force, unreasonable distribution of clamping points, or limited positioning accuracy. As a result, during the wax injection process, especially when subjected to the injection pressure of molten wax or equipment vibration, the wax injection mold is prone to micro-movement, displacement, or even loosening. This unstable clamping condition directly leads to an increased defect rate of the wax mold. Summary of the Invention

[0004] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide a wax injection mold clamping and centering fixture and a wax injection machine, so as to clamp and fix the wax injection mold from all sides and from the top and bottom, so that the wax injection mold can be accurately clamped on the second support platform, ensuring the reliable molding of the wax mold and reducing the defect rate of the wax mold.

[0005] To achieve the above objectives, the specific solution of this utility model is as follows:

[0006] A wax injection mold clamping and centering fixture includes a first support platform and a second support platform disposed on top of the first support platform;

[0007] The first support platform is provided with a first lifting power component, two opposing first clamping arms are movably provided, and a second clamping arm is movably provided; the output end of the first lifting power component is connected to a lifting frame; the two first clamping arms are respectively slidably hinged to the lifting frame; the two first clamping arms are connected by transmission; the second clamping arm is slidably hinged to the lifting frame;

[0008] The second support platform has baffles and support frames on opposite sides; the baffles have wax injection notches in the middle; the tops of the baffles and the support frames have clamping mechanisms; the second support platform has two first guide holes distributed on both sides of the wax injection notches and a second guide hole directly opposite the wax injection notches; the first clamping arm passes through the first guide hole; the second clamping arm passes through the second guide hole;

[0009] The second support platform is provided with a first clamping drive; the first support platform is provided with a second clamping drive; the output end of the first clamping drive is connected to one of the first clamping arms to drive the two first clamping arms to move synchronously in opposite directions; the output end of the second clamping drive is connected to the second clamping arm to drive the second clamping arm to move toward the wax injection notch.

[0010] In a further embodiment of this invention, the two first clamping arms are respectively connected to horizontally arranged first racks; the bottom of the second support platform is provided with a sliding rod; a first gear is slidably sleeved on the outer wall of the sliding rod; the first gear meshes with the two first racks; a support plate is provided on the bottom surface of one first rack; the support plate movably abuts against the bottom surface of the first gear; a pressure plate is provided on the top surface of the other first rack; the pressure plate movably abuts against the top surface of the first gear.

[0011] Furthermore, the lifting frame includes a first horizontal arm, a longitudinal arm with one end vertically connected to the middle of the first horizontal arm, and a second horizontal arm with one end vertically connected to the other end of the longitudinal arm; both ends of the first horizontal arm are provided with first sliding holes; the second horizontal arm is perpendicular to the first horizontal arm; the other end of the second horizontal arm is provided with a second sliding hole;

[0012] Each of the two first clamping arms is provided with a first round pin; the second clamping arm is provided with a second round pin; the first round pin is movably embedded in the first sliding hole; the second round pin is movably embedded in the second sliding hole.

[0013] Furthermore, in this invention, the output end of the first lifting power component is connected to a second gear; the longitudinal arm of the lifting frame is vertically provided with a second rack; the second gear meshes with the second rack.

[0014] In a further embodiment of this invention, a first sliding block is provided between the lifting frame and the first bearing platform; the slide rail of the first sliding block is provided on the longitudinal arm of the lifting frame; and the slider of the first sliding block is provided on the first bearing platform.

[0015] In a further embodiment of this invention, a second sliding group and a third sliding group are provided between the first support platform and the first clamping arm; the slide rail of the second sliding group is provided on the first support platform; the slide rail of the third sliding group is provided on the slider of the second sliding group; the first clamping arm is connected to the slider of the third sliding group; and the output end of the first clamping drive is connected to the slider of the second sliding group.

[0016] In a further embodiment of this invention, a fourth sliding block and a fifth sliding block are provided between the second clamping arm and the first support platform; the slide rail of the fourth sliding block is provided on the first support platform; the slide rail of the fifth sliding block is provided on the slider of the fourth sliding block; the second clamping arm is connected to the slider of the fifth sliding block; and the output end of the second clamping drive is connected to the slider of the fourth sliding block.

[0017] The present invention further includes a first base, a second base disposed on the first base, and a support seat slidably disposed on the second base; the first bearing platform is disposed on the top of the support seat; the support seat is provided with a translational force member; the output end of the translational force member is connected to the support seat.

[0018] Furthermore, the first base is provided with a second lifting power component; the output end of the second lifting power component is connected to the support base; the second base is lifted and positioned on the first base.

[0019] The second aspect of this utility model provides a wax injection machine, including a support platform, a first conveying mechanism, a second conveying mechanism, a first pushing mechanism, a second pushing mechanism, a wax injection device, a cooling device, and a wax injection mold clamping and centering fixture as described above.

[0020] The support platform has an installation port that is aligned with the second conveying mechanism; the wax injection mold clamping and centering fixture passes through the installation port; the first and second conveying mechanisms are arranged parallel to each other on the support platform; the second pushing mechanism is located on the support platform and on one side of the installation port; the wax injection device is located on the support platform and on the other side adjacent to the installation port; the first pushing mechanism is located on the support platform and corresponds to the position of the wax injection mold clamping and centering fixture; the cooling device is located below the support platform; the cold air vent of the cooling device corresponds to the position of the second conveying mechanism.

[0021] The beneficial effects of this utility model are as follows: By setting up a baffle with a wax injection notch, a first lifting power component, a first clamping arm, a second clamping arm, a first clamping drive component, a second clamping drive component, and a pressing mechanism, the utility model clamps and fixes the wax injection mold from all sides and in the vertical direction, so that the wax injection mold can be accurately clamped on the second support platform, ensuring the reliable molding of the wax mold and helping to reduce the defect rate of the wax mold. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the clamping and centering fixture provided in this embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of the clamping and centering fixture provided in this embodiment of the present invention when the first clamping arm and the second clamping arm are in the clamping position;

[0024] Figure 3 This is a schematic diagram of the clamping and centering fixture provided in this embodiment of the present invention from another perspective when the first clamping arm and the second clamping arm are in the clamping position;

[0025] Figure 4 This is a partial structural schematic diagram of the clamping and centering fixture provided in this embodiment of the utility model;

[0026] Figure 5 This is a partial structural diagram of the cooperation between the first clamping arm and the second clamping arm provided in this embodiment of the utility model;

[0027] Figure 6 This is a schematic diagram of the lifting frame provided in an embodiment of the present utility model;

[0028] Figure 7 This is a cross-sectional schematic diagram of the pressing mechanism provided in an embodiment of this utility model;

[0029] Figure 8 This is a schematic diagram of the structure of the wax injection machine provided in this embodiment of the utility model;

[0030] Explanation of reference numerals in the attached drawings: 1. Support platform; 2. First conveying mechanism; 3. Second conveying mechanism; 4. First pushing mechanism; 5. Second pushing mechanism; 6. Wax injection device; 7. Cooling device; 8. Clamping and centering fixture; 81. First base; 811. Second lifting power component; 82. Second base; 821. Translational power component; 822. Sixth sliding block; 83. Support seat; 831. Slide plate; 832. First tension spring; 833. Second tension spring; 84. First bearing platform; 841. First lifting power component; 842. Second clamping drive component; 843. Second gear; 85. Second bearing platform; 851. Baffle; 852. Support frame; 853. Wax injection notch; 854. First guide hole; 855. Second guide hole; 856. First clamping drive component Components; 857, slide bar; 858, first gear; 86, first clamping arm; 861, first rack; 862, support plate; 863, pressure plate; 864, first round pin; 865, second slide group; 866, third slide group; 87, second clamping arm; 871, second round pin; 872, fourth slide group; 873, fifth slide group; 88, lifting frame; 881, first horizontal arm; 882, vertical arm; 883, second horizontal arm; 884, first sliding hole; 885, second sliding hole; 886, second rack; 887, first slide group; 89, clamping mechanism; 891, clamping table; 892, clamping cylinder; 893, pressure plate; 894, auxiliary cylinder; 895, adjusting motor; 896, third rack; 897, third gear; 898, seventh slide group. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but this is not to limit the scope of the present invention.

[0032] like Figures 1 to 8As shown, a wax injection machine of this embodiment includes a support platform 1, a first conveying mechanism 2, a second conveying mechanism 3, a first pushing mechanism 4, a second pushing mechanism 5, a wax injection device 6, a cooling device 7, and a wax injection mold clamping and centering fixture 8 as described above.

[0033] The support platform 1 has an installation port that is aligned with the second conveying mechanism 3; the wax injection mold clamping and centering fixture 8 passes through the installation port; the first conveying mechanism 2 and the second conveying mechanism 3 are arranged parallel to each other on the support platform 1; the second pushing mechanism 5 is located on the support platform 1 and on one side of the installation port; the wax injection device 6 is located on the support platform 1 and on the other side adjacent to the installation port; the first pushing mechanism 4 is located on the support platform 1 and corresponds to the position of the wax injection mold clamping and centering fixture 8; the cooling device 7 is located below the support platform 1; the cold air vent of the cooling device 7 corresponds to the position of the second conveying mechanism 3.

[0034] Specifically, such as Figures 1 to 7 As shown, the wax injection mold clamping and centering fixture 8 includes a first support platform 84 and a second support platform 85 disposed on the top of the first support platform 84; the first support platform 84 is L-shaped.

[0035] The first support platform 84 is provided with a first lifting power component 841, two opposing first clamping arms 86 movably provided, and a second clamping arm 87 movably provided; the output end of the first lifting power component 841 is connected to a lifting frame 88; the two first clamping arms 86 are respectively slidably hinged to the lifting frame 88; the two first clamping arms 86 are connected by a transmission; the second clamping arm 87 is slidably hinged to the lifting frame 88; the second support platform 85 is provided with a baffle 851 and a support frame 852 on opposite sides; the baffle 851 is provided with a wax injection notch 853 in the middle; the top of the baffle 851 and the top of the support frame 852 are provided with a clamping mechanism 89; the second support platform 85 is provided with two distributed wax injection notches... The notch 853 has a first guide hole 854 on both sides and a second guide hole 855 directly opposite the wax injection notch 853; a first clamping arm 86 passes through the first guide hole 854; a second clamping arm 87 passes through the second guide hole 855; a second support platform 85 is provided with a first clamping drive 856; a first support platform 84 is provided with a second clamping drive 842; the output end of the first clamping drive 856 is connected to one of the first clamping arms 86 to drive the two first clamping arms 86 to move synchronously in opposite directions; the output end of the second clamping drive 842 is connected to the second clamping arm 87 to drive the second clamping arm 87 to move toward the wax injection notch 853.

[0036] Specifically, the first conveying mechanism 2 adopts a transmission chain structure, the second conveying mechanism 3 adopts a transmission structure composed of multiple transmission roller groups arranged in parallel at intervals, the wax injection device 6 can adopt an existing wax injection structure with a conical wax injection nozzle; the cooling device 7 includes a cooler and a connecting pipe, one end of the connecting pipe is connected to the cooler, and the other end is connected directly below the second conveying mechanism 3; the first lifting power component 841 is a servo motor, and the first clamping drive component 856 can be an electric push rod or a cylinder structure; the first pushing mechanism 4 and the second pushing mechanism 5 can adopt a linear module, an electric push rod, or a cylinder structure.

[0037] Initially, the first lifting power component 841 uses the lifting frame 88 to retract the first clamping arm 86 and the second clamping arm 87. Specifically, the first clamping arm 86 is housed in the first guide hole 854, and the height of the first clamping arm 86 is less than or equal to the height of the second support platform 85. The second clamping arm 87 is housed in the second guide hole 855, and the height of the second clamping arm 87 is less than or equal to the height of the second support platform 85, so that the wax injection mold can move on the second support platform 85.

[0038] In practical application, the idle wax injection mold is placed on the first conveying mechanism 2. The first conveying mechanism 2 moves the idle wax injection mold toward the first pushing mechanism 4 until the idle wax injection mold is aligned with the wax injection mold clamping and centering fixture 8. Then, the first pushing mechanism 4 pushes the idle wax injection mold onto the second support platform 85 of the wax injection mold clamping and centering fixture 8. Next, the first lifting power component 841, through the lifting frame 88, simultaneously causes the first clamping arm 86 and the second clamping arm 87 to extend upward through the first guide hole 854 and the second guide hole 855, respectively. Then, the first clamping drive component 856 and the first... When the second clamping drive unit 842 is working, the first clamping drive unit 856 simultaneously drives the two first clamping arms 86 to move towards each other, clamping and centering the wax injection mold so that the center of the wax injection mold is aligned with the wax injection notch 853. At the same time, the second clamping drive unit 842 drives the second clamping arm 87 to move towards the idle wax injection mold, so that the wax injection mold is clamped between the baffle 851 and the second clamping arm 87, thus forming a clamping, positioning and fixing of the wax injection mold around its perimeter. Then, the pressing mechanism 89 presses down on the wax injection mold from above, thus firmly fixing the wax injection mold on the second support platform 85.

[0039] After the wax injection mold is fixed, the wax injection nozzle of the wax injection device 6 injects molten wax into the wax injection mold through the wax injection notch 853. After the wax injection is completed, the clamping mechanism 89, the first clamping arm 86, and the second clamping arm 87 are reset respectively. Then, the second pushing mechanism 5 pushes the wax injection mold after wax injection onto the second conveying mechanism 3. The second conveying mechanism 3 drives the wax injection mold after wax injection to move above the cold air vent of the cooling device 7. The cooling device 7 accelerates the cooling and shaping of the wax mold in the wax injection mold, thus completing the wax injection process.

[0040] This embodiment achieves this by coordinating the use of a baffle 851 with a wax injection notch 853, a first lifting power component 841, a first clamping arm 86, a second clamping arm 87, a first clamping drive component 856, a second clamping drive component 842, and a pressing mechanism 89. This clamps and fixes the wax injection mold from all sides and vertically, ensuring that the wax injection mold can be precisely clamped onto the second support platform 85. This guarantees reliable wax molding and helps reduce the defect rate of the wax mold.

[0041] like Figure 4 and Figure 5 As shown, in some embodiments of this wax injection machine, two first clamping arms 86 are respectively connected to horizontally arranged first racks 861; the bottom of the second support platform 85 is provided with a slide rod 857; a first gear 858 is slidably sleeved on the outer wall of the slide rod 857; the first gear 858 meshes with the two first racks 861; a support plate 862 is provided on the bottom surface of one first rack 861; the support plate 862 is movably abutting against the bottom surface of the first gear 858; a pressure plate 893863 is provided on the top surface of the other first rack 861; the pressure plate 893863 is movably abutting against the top surface of the first gear 858. With the above configuration, when the first clamping arm 86 extends upward through the second support platform 85, the first gear 858 is pushed by the support plate 862 to move synchronously along the slide bar 857. When the first clamping arm 86 retracts, the first rack 861 is pushed synchronously downward by the pressure plate 893863. This ensures that after the first clamping arm 86 moves upward, the first gear 858 and the first rack 861 remain engaged, so that the synchronous reverse movement of the two first clamping arms 86 can be achieved through the cooperation of the first gear 858 and the first rack 861. Thus, when the first clamping drive 856 pushes the first clamping arm 86 to move, the two first clamping arms 86 achieve synchronous reverse movement through the cooperation of the first rack 861 and the first gear 858, so as to clamp or release the wax injection mold.

[0042] like Figure 4 , Figure 5 and Figure 6As shown, in some embodiments of this wax injection machine, the lifting frame 88 includes a first horizontal arm 881, a longitudinal arm 882 with one end vertically connected to the middle of the first horizontal arm 881, and a second horizontal arm 883 with one end vertically connected to the other end of the longitudinal arm 882. Both ends of the first horizontal arm 881 are provided with first sliding holes 884. The second horizontal arm 883 is perpendicular to the first horizontal arm 881. The other end of the second horizontal arm 883 is provided with a second sliding hole 885. Two first clamping arms 86 are respectively provided with first round pins 864. The second clamping arm 87 is provided with second round pins 871. The first round pins 864 are movably embedded in the first sliding holes 884. The second round pins 871 are movably embedded in the second sliding holes 885. Preferably, the first horizontal arm 881, the longitudinal arm 882, and the second horizontal arm 883 are integrally formed, resulting in a more robust structure. With the above configuration, when the first clamping arm 86 and the second clamping arm 87 need to be raised or lowered relative to the second support platform 85, the first lifting power component 841 drives the lifting frame 88 to move up and down. The first horizontal arm 881 of the lifting frame 88 engages with the first round pin 864 through the first sliding hole 884, simultaneously pushing the two first clamping arms 86 to move. At the same time, the second horizontal arm 883 of the lifting frame 88 engages with the second round pin 871 through the second sliding hole 885, simultaneously pushing the second clamping arm 87 to move upward synchronously. Thus, by using one power component, the synchronous lifting and lowering movement of the second clamping arm 87 and the two first clamping arms 86 can be achieved, which helps to save manufacturing costs.

[0043] When the first clamping arm 86 and the second clamping arm 87 are needed to clamp and fix the wax injection mold, the first clamping drive 856 pushes the two first clamping arms 86 to slide. The first clamping arm 86 drives the first round pin 864 to move in the first sliding hole 884. Similarly, the second clamping drive 842 pushes the second clamping arm 87 to slide. The second clamping arm 87 drives the second round pin 871 to move in the second sliding hole 885. In this way, through the cooperation of the first round pin 864 and the first sliding hole 884, and the cooperation of the second round pin 871 and the second sliding hole 885, the synchronous lifting and lowering movement of the first clamping arm 86 can be achieved, and the horizontal sliding of the first clamping arm 86 and the second clamping arm 87 can also be achieved, making the structure more compact.

[0044] like Figure 4 As shown, in some embodiments of this wax injection machine, the output end of the first lifting power component 841 is connected to a second gear 843; the longitudinal arm 882 of the lifting frame 88 is vertically provided with a second rack 886; the second gear 843 meshes with the second rack 886. With the above arrangement, when it is necessary to raise or lower the first clamping arm 86 and the second clamping arm 87, the first lifting power component 841 drives the second gear 843 to rotate, and the second gear 843 cooperates with the second rack 886 to drive the lifting frame 88 to perform lifting and lowering movements, thereby achieving synchronous lifting and lowering movements of the first clamping arm 86 and the second clamping arm 87.

[0045] like Figure 4 As shown in this embodiment, in some implementations of a wax injection machine, a first sliding assembly 887 is provided between the lifting frame 88 and the first support platform 84; the slide rail of the first sliding assembly 887 is provided on the longitudinal arm 882 of the lifting frame 88; and the slider of the first sliding assembly 887 is provided on the first support platform 84. Through the above arrangement, the relative movement between the lifting frame 88 and the first support platform 84 is realized, thereby driving the first clamping arm 86 and the second clamping arm 87 to move up and down.

[0046] like Figure 4 As shown, in some embodiments of this wax injection machine, a second slide group 865 and a third slide group 866 are provided between the first support platform 84 and the first clamping arm 86; the slide rail of the second slide group 865 is provided on the first support platform 84; the slide rail of the third slide group 866 is provided on the slider of the second slide group 865; the first clamping arm 86 is connected to the slider of the third slide group 866; and the output end of the first clamping drive member 856 is connected to the slider of the second slide group 865. With the above configuration, when the first clamping arm 86 moves up and down, it slides relative to the second sliding group 865 via the third sliding group 866. When the first clamping arm 86 clamps the wax injection mold, the first clamping drive 856 pushes the slider of the second sliding group 865 to move. The slider of the second sliding group 865, through the third sliding group 866, drives the first clamping arm 86 to slide, thereby clamping the wax injection mold. In this way, the up and down movement and clamping movement of the first clamping arm 86 are carried out in an orderly manner.

[0047] like Figure 4 and Figure 5 As shown, in some embodiments of this wax injection machine, a fourth slide block 872 and a fifth slide block 873 are provided between the second clamping arm 87 and the first support platform 84; the slide rail of the fourth slide block 872 is provided on the first support platform 84; the slide rail of the fifth slide block 873 is provided on the slider of the fourth slide block 872; the second clamping arm 87 is connected to the slider of the fifth slide block 873; and the output end of the second clamping drive member 842 is connected to the slider of the fourth slide block 872. With the above configuration, when the second clamping arm 87 moves up and down, it slides up and down through the fifth sliding block 873. When the second clamping arm 87 clamps the wax injection mold, the second clamping drive 842 pushes the slider of the fourth sliding block 872 to slide. The slider of the fourth sliding block 872 drives the second clamping arm 87 to slide through the fifth sliding block 873, thereby clamping the wax injection mold. In this way, through the cooperation of the fourth sliding block 872 and the fifth sliding block 873, the orderly movement of the second clamping arm 87 in both lifting and clamping motion is achieved.

[0048] like Figures 1 to 3As shown, in some embodiments of this wax injection machine, a first base 81, a second base 82 disposed on the first base 81, and a support 83 slidably disposed on the second base 82; a first bearing platform 84 is disposed on the top of the support 83; the support 83 is provided with a translational force member 821; the output end of the translational force member 821 is connected to the support 83. The first base 81 is fixedly mounted on the support platform 821. The translational force member 821 is an electric actuator or a cylinder structure.

[0049] Specifically, after the first clamping arm 86 and the second clamping arm 87 clamp the wax injection mold, and the pressing mechanism 89 presses the wax injection mold from above, the translational force member 821 pushes the support seat 83 to move. The support seat 83 drives the clamped wax injection mold to move toward the wax injection nozzle of the wax injection device 6, so that the wax injection nozzle passes through the wax injection notch 853 and is inserted into the wax injection mold to perform the wax injection operation.

[0050] like Figures 1 to 3 As shown in this embodiment, in some implementations of a wax injection machine, the first base 81 is provided with a second lifting power component 811; the output end of the second lifting power component 811 is connected to the support base 83; the second base 82 is flexibly mounted on the first base 81. The second lifting power component 811 can be a cylinder structure or a lead screw motor. In this embodiment, by providing the second lifting power component 811, the entire fixture can be adjusted in height to ensure that the height of the second bearing platform 85 corresponds to that of the support platform 1, so as to facilitate the stable transfer of the wax injection mold.

[0051] Specifically, a sixth sliding block 822 is provided between the second base 82 and the first base 81; the slide rail of the sixth sliding block 822 is fixed on the first base 81; the slider of the sixth sliding block 822 is fixed on the second base 82, thus realizing the lifting and lowering movement of the second base 82 relative to the first base 81.

[0052] like Figures 1 to 3 , Figure 7 As shown in this embodiment, in some implementations of a wax injection machine, the clamping mechanism 89 includes a clamping table 891, a clamping cylinder 892, and a pressure plate 893863. The clamping table 891 is fixedly installed on the top of the baffle 851 and the support frame 852. The clamping cylinder 892 is installed on the top of the clamping table 891, and the pressure plate 893863 is slidably connected to the baffle 851 and the support frame 852. The output end of the clamping cylinder 892 is connected to the pressure plate 893863. Thus, the clamping cylinder 892 drives the pressure plate 893863 to move downward, thereby clamping the wax injection mold on the second support table 85 to ensure reliable molding of the wax mold.

[0053] like Figure 7As shown in this embodiment, in some implementations of a wax injection machine, an auxiliary cylinder 894 is also installed on the pressing table 891; so that when the pressing cylinder 892 is not powerful enough, the auxiliary cylinder 894 can provide pressure assistance.

[0054] The clamping mechanism 89 includes an adjusting motor 895, a third rack 896, and a third gear 897. The clamping cylinder 892 is slidably mounted on the clamping table 891. The adjusting motor 895 is mounted on the clamping table 891, the third gear 897 is connected to the output end of the adjusting motor 895, and the third rack 896 is mounted on the clamping cylinder 892. The third rack 896 meshes with the third gear 897. The clamping plate has a seventh sliding block 898. The output end of the clamping cylinder 892 is connected to the slider of the seventh sliding block 898. With this configuration, the adjusting motor 895 drives the third gear 897 to rotate. The third gear 897, through its interaction with the third rack 896, drives the clamping cylinder 892 to slide, thereby adjusting the position of the clamping cylinder 892 to accommodate clamping operations of wax injection molds of different sizes, thus broadening the scope of its application.

[0055] like Figure 3 As shown, in some embodiments of this wax injection machine, a sliding plate 831 is vertically slidably mounted on the top of a support base 83; a first bearing platform 84 is horizontally slidably mounted on the sliding plate 831; a first tension spring 832 connects the support base 83 and the sliding plate 831; and a second tension spring 833 connects the sliding plate 831 and the first bearing platform 84. Through this arrangement, the first bearing platform 84 can adaptively fine-tune its movement under the action of the first tension spring 832 and the second tension spring 833, so that when the injection mold moves towards the wax injection nozzle, the wax injection notch 853 can adaptively align, allowing the wax injection mold to adaptively align with the wax injection nozzle, further improving the alignment accuracy of the wax injection process. Specifically, the sliding plate 831 is connected to the support base 83 via an eighth sliding assembly; the first bearing platform 84 is connected to the sliding plate 831 via a ninth sliding assembly.

[0056] The above description is only a preferred embodiment of the present utility model. Therefore, any equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included within the protection scope of the present utility model patent application.

Claims

1. A clamping and centering fixture for a wax injection mold, characterized in that, It includes a first support platform and a second support platform located on top of the first support platform; The first support platform is provided with a first lifting power component, two opposing first clamping arms are movably provided, and a second clamping arm is movably provided; the output end of the first lifting power component is connected to a lifting frame; the two first clamping arms are respectively slidably hinged to the lifting frame; the two first clamping arms are connected by transmission; the second clamping arm is slidably hinged to the lifting frame; The second support platform has baffles and support frames on opposite sides; the baffles have wax injection notches in the middle; the tops of the baffles and the support frames have clamping mechanisms; the second support platform has two first guide holes distributed on both sides of the wax injection notches and a second guide hole directly opposite the wax injection notches; the first clamping arm passes through the first guide hole; the second clamping arm passes through the second guide hole; The second support platform is provided with a first clamping drive; the first support platform is provided with a second clamping drive; the output end of the first clamping drive is connected to one of the first clamping arms to drive the two first clamping arms to move synchronously in opposite directions; the output end of the second clamping drive is connected to the second clamping arm to drive the second clamping arm to move toward the wax injection notch.

2. The wax injection mold clamping and centering fixture according to claim 1, characterized in that, Two first clamping arms are respectively connected to horizontally arranged first racks; the bottom of the second support platform is provided with a slide rod; a first gear is slidably sleeved on the outer wall of the slide rod; the first gear meshes with the two first racks; a support plate is provided on the bottom surface of one first rack; the support plate is movably abutting against the bottom surface of the first gear; a pressure plate is provided on the top surface of the other first rack; the pressure plate is movably abutting against the top surface of the first gear.

3. The wax injection mold clamping and centering fixture according to claim 1, characterized in that, The lifting frame includes a first horizontal arm, a longitudinal arm with one end vertically connected to the middle of the first horizontal arm, and a second horizontal arm with one end vertically connected to the other end of the longitudinal arm; both ends of the first horizontal arm are provided with first sliding holes; the second horizontal arm is perpendicular to the first horizontal arm; the other end of the second horizontal arm is provided with a second sliding hole; Each of the two first clamping arms is provided with a first round pin; the second clamping arm is provided with a second round pin; the first round pin is movably embedded in the first sliding hole; the second round pin is movably embedded in the second sliding hole.

4. The wax injection mold clamping and centering fixture according to claim 3, characterized in that, The output end of the first lifting power component is connected to a second gear; the vertical arm of the lifting frame is provided with a second rack; the second gear meshes with the second rack.

5. A wax injection mold clamping and centering fixture according to claim 3, characterized in that, A first sliding block is provided between the lifting frame and the first bearing platform; the slide rail of the first sliding block is provided on the longitudinal arm of the lifting frame; the slider of the first sliding block is provided on the first bearing platform.

6. A wax injection mold clamping and centering fixture according to claim 1, characterized in that, A second slide group and a third slide group are provided between the first support platform and the first clamping arm; the slide rail of the second slide group is provided on the first support platform; the slide rail of the third slide group is provided on the slider of the second slide group; the first clamping arm is connected to the slider of the third slide group; the output end of the first clamping drive is connected to the slider of the second slide group.

7. A wax injection mold clamping and centering fixture according to claim 1, characterized in that, A fourth slide block and a fifth slide block are provided between the second clamping arm and the first support platform; the slide rail of the fourth slide block is provided on the first support platform; the slide rail of the fifth slide block is provided on the slider of the fourth slide block; the second clamping arm is connected to the slider of the fifth slide block; the output end of the second clamping drive is connected to the slider of the fourth slide block.

8. A wax injection mold clamping and centering fixture according to any one of claims 1 to 7, characterized in that, It also includes a first base, a second base disposed on the first base, and a support seat slidably disposed on the second base; the first bearing platform is disposed on the top of the support seat; the support seat is provided with a translational force member; the output end of the translational force member is connected to the support seat.

9. A wax injection mold clamping and centering fixture according to claim 8, characterized in that, The first base is provided with a second lifting power component; the output end of the second lifting power component is connected to the support base; the second base is lifted and positioned on the first base.

10. A wax injection machine, characterized in that, It includes a support platform, a first conveying mechanism, a second conveying mechanism, a first pushing mechanism, a second pushing mechanism, a wax injection device, a cooling device, and a wax injection mold clamping and centering fixture as described in any one of claims 1 to 9; The support platform has an installation port that is aligned with the second conveying mechanism; the wax injection mold clamping and centering fixture passes through the installation port; the first and second conveying mechanisms are arranged parallel to each other on the support platform; the second pushing mechanism is located on the support platform and on one side of the installation port; the wax injection device is located on the support platform and on the other side adjacent to the installation port; the first pushing mechanism is located on the support platform and corresponds to the position of the wax injection mold clamping and centering fixture; the cooling device is located below the support platform; the cold air vent of the cooling device corresponds to the position of the second conveying mechanism.

Images