Universal sand mold transfer clamp

Abstract

The utility model discloses a universal type sand mold transfer clamp which comprises a base, the two moving mechanisms are symmetrically installed on the base and located on the two sides of the base in the first direction. And the two fixing mechanisms are installed on the two moving mechanisms correspondingly and are movably arranged in the second direction of the base, the fixing mechanisms press the sand core on the base, and the second direction is perpendicular to the first direction. The universal sand mold transfer clamp provided by the utility model can be suitable for fixing and transferring sand cores of various sizes and varieties, reduces the damage to the sand cores, and improves the production efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of casting, and in particular relates to a universal sand mold transfer fixture. Background Art

[0002] Sand molds are used to form the mold cavities of castings, and their manufacturing process involves precision machining of multiple steps. To ensure the efficient connection of each process, sand cores are usually accurately transferred and positioned between processing stations through dedicated transfer equipment to meet the sand mold accuracy and process requirements of different processes. Existing sand core fixing fixtures are mostly combined structures of bolts and clips, and the fixing surface is in direct contact with the sand core processing surface. Since the sand core material is relatively brittle, the shape is complex and the size is diverse, especially thin-walled sand blanks are very easy to be damaged during transportation and assembly. When sand blanks of different sizes or shapes need to be processed, it is often necessary to adjust and replace the fixture for fixing. The lack of clamping flexibility limits the improvement of production efficiency and makes it difficult to meet the requirements of small-batch, multi-variety production models for rapid mold change and efficient processing. Utility Model Content

[0003] Based on the above problems, the purpose of this utility model is to provide a universal sand mold transfer fixture that can be used for fixing and transferring sand cores of different sizes and types.

[0004] In order to overcome the deficiencies of the prior art, the technical solution provided by the present invention is:

[0005] A universal sand mold transfer fixture, comprising:

[0006] base;

[0007] Two moving mechanisms are symmetrically mounted on the base and located on both sides of the base in a first direction;

[0008] Two fixing mechanisms are respectively mounted on the two moving mechanisms and are movably arranged along the second direction of the base. The fixing mechanisms press the sand core onto the base, and the second direction is perpendicular to the first direction.

[0009] In one embodiment, the base includes a supporting frame and a processing panel fixed on the supporting frame, the two moving mechanisms are installed on the processing panel, and the processing panel is provided with a plurality of drain holes.

[0010] In one embodiment, the support frame includes a field-shaped frame and first support components respectively provided at opposite ends of the frame, and the frame is a square tube connection structure;

[0011] The first supporting assembly includes an L-shaped first supporting member fixed to the end of the frame and a plurality of first reinforcing ribs spaced apart on the first supporting member.

[0012] In one embodiment, support plates are respectively provided at the bottom of the frame at the positions where the square tubes are connected, and positioning grooves are provided on the four support plates located in the middle of the outer periphery of the frame.

[0013] In one embodiment, the moving mechanism includes a guide rail assembly mounted on the base and a push plate assembly slidably engaged with the guide rail assembly, and the fixing mechanism is slidably disposed on the push plate assembly.

[0014] In one embodiment, the guide rail assembly includes two guide rails arranged on both sides of the second direction of the base and a slider slidably arranged on the two guide rails. The two ends of the push plate assembly are respectively fixedly connected to the two sliders. Limit blocks are respectively provided at both ends of the guide rail in the length direction. A limit assembly for limiting the slider is provided on the guide rail.

[0015] In one embodiment, the push plate assembly includes an L-shaped second support member, a push plate fixed on the second support member, and a plurality of second reinforcing ribs spaced apart on the second support member, and the push plate is provided with a slide groove extending along the second direction of the base.

[0016] In one embodiment, the fixing mechanism includes at least one fixing component slidably arranged on the push plate, and the fixing component includes a locking rod slidably arranged in the slide groove, a fixed pressure plate passed through the locking rod, a support component fixed to the lower end of the fixed pressure plate, and a locking nut for locking the fixed pressure plate. The locking rod is a screw and a sliding block matching the slide groove is provided at the lower end. The locking rod is passed through a fixed pressure ring on the side of the sand core, and the fixed pressure plate is pressed against the fixed pressure ring by a locking nut, and at the same time, the support component abuts against the upper end of the push plate.

[0017] In one embodiment, a positioning assembly is provided on at least one side of the base in the second direction, and the positioning assembly includes a plurality of positioning blocks arranged at intervals.

[0018] In one embodiment, the base is provided with an adjustment slot extending along a first direction, and the plurality of positioning blocks are adjustable in position and arranged in the adjustment slot.

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] 1. The clamp can be adaptively adjusted according to the size of the sand core. The sand core is pressed tightly against the base through two fixing mechanisms to ensure the stability of the sand core during transportation and processing, and to prevent the sand core from being damaged due to uneven local force during the clamping process.

[0021] 2. The fixing mechanism works with the push plate assembly to firmly fix the sand core on the base to prevent it from moving or loosening during processing or transportation. The structure of the fixing structure adopts a modular design, which is convenient for installation and adjustment to adapt to sand cores of different shapes and weights;

[0022] 3. The support frame is used to carry other functional components and provide overall rigid support. It has sufficient structural strength and durability to withstand external forces during processing and transportation at different workstations, ensuring the stability and long-term use of the fixture. At the same time, the lightweight design of the support frame must ensure the overall weight balance of the fixture, facilitate the docking between the fixture and processing equipment, and the smooth transportation of sand cores. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. The drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a structural schematic diagram of an embodiment of a universal sand mold transfer fixture of the present utility model;

[0025] Figure 2 This is one of the structural diagrams of the base in the embodiment of the present utility model;

[0026] Figure 3 This is the second structural diagram of the base in the embodiment of the present utility model;

[0027] Figure 4 This is one of the structural diagrams of the support frame in the embodiment of the present utility model;

[0028] Figure 5 This is the second structural diagram of the support frame in the embodiment of the present utility model;

[0029] Figure 6 This is a schematic structural diagram of the moving mechanism in an embodiment of the present utility model;

[0030] Figure 7 This is a structural diagram of the limit assembly in an embodiment of the present utility model;

[0031] Figure 8 This is a structural diagram of the fixing mechanism in an embodiment of the present utility model;

[0032] Figure 9 This is one of the schematic diagrams of the use state of an embodiment of the utility model;

[0033] Figure 10 This is the second schematic diagram of the use state of the embodiment of the utility model;

[0034] in:

[0035] 1. Base; 1-1. Support frame; 1-1a. Frame; 1-1b. First support member; 1-1c. First reinforcement rib; 1-1d. Support plate; 1-2. Processing panel; 1-2a. Hollow hole; 1-2b. Adjustment slot;

[0036] 2. Moving mechanism; 2-1. Guide rail; 2-2. Slider; 2-3. Second support member; 2-4. Push plate; 2-4a. Slide groove; 2-5. Second reinforcing rib; 2-6. Limit block; 2-7. Limit assembly; 2-7a. Locking block; 2-7b. Locking rod; 2-7c. Locking column; 2-7d. Handle;

[0037] 3. Fixing mechanism; 3-1. Locking rod; 3-1a. Sliding block; 3-2. Fixed pressure plate; 3-3. Support component; 3-4. Locking nut;

[0038] 4. Sand core; 4-1. Fixed pressure ring;

[0039] 5. Positioning block;

[0040] 6. Positioning key;

[0041] 7. Rings. DETAILED DESCRIPTION

[0042] The above scheme is further described below with reference to specific examples. It should be understood that these examples are intended to illustrate the present invention and are not intended to limit the scope of the present invention. The implementation conditions used in the examples can be further adjusted according to the conditions of the specific manufacturer. The implementation conditions not specified are generally those used in routine experiments.

[0043] like Figure 1 As shown, it is a structural schematic diagram of the utility model, which provides a universal sand mold transfer fixture, including a base 1, two movable mechanisms 2 symmetrically installed on the base 1 and located on both sides of the first direction of the base 1, and two fixing mechanisms 3 respectively installed on the two movable mechanisms 2 and movably arranged along the second direction of the base 1. The fixing mechanisms 3 press the sand core 4 on the base 1, wherein the first direction and the second direction are perpendicular to each other.

[0044] like Figure 2 and Figure 3 As shown, the base 1 includes a support frame 1-1 and a processing panel 1-2 fixed to the support frame 1-1. Two moving mechanisms 2 are mounted on the processing panel 1-2. The processing panel 1-2 is provided with a plurality of hollow holes 2-1 arranged in an array to achieve lightweighting of the fixture and facilitate sand removal. To facilitate lifting, the processing panel 2-1 is provided with multiple lifting rings 7.

[0045] like Figure 4 and Figure 5 As shown, the support frame 1-1 includes a field-shaped frame 1-1a and first support components respectively arranged at opposite ends of the frame 1-1a, wherein the frame 1-1a is a square tube connection structure, that is, it is connected by four square tubes on the outside and three square tubes in the middle. The structure of the frame 1-1a can ensure the strength of the structure, facilitate the lightweighting of the clamp, and facilitate sand discharge.

[0046] The first support assembly includes an L-shaped first support member 1-1b fixed to the end of the frame 1-1a and a plurality of first reinforcing ribs 1-1c spaced apart on the first support member 1-1b. The first support assembly can improve the strength of the support frame 1-1.

[0047] In order to improve the stability of the structure, support plates 1-1d are respectively provided at the bottom of the frame 1-1a at the position where the square tube is connected. Among them, the four support plates 1-1d located on the outer periphery of the frame 1-1a are provided with positioning grooves. These positioning grooves cooperate with the positioning keys 6 on the workbench to position the fixture on the workbench, avoid the sand core from shifting, and facilitate the processing of the sand core 4.

[0048] like Figure 6 As shown, the moving mechanism 2 includes a guide rail assembly mounted on the base 1 and a push plate assembly that slides with the guide rail assembly. The fixing mechanism 3 is slidably arranged on the push plate assembly. By adjusting the position of the push plate assembly on the guide rail assembly, it can be used to clamp sand cores 4 of different sizes, such as Figure 1 、 Figure 9 and Figure 10 As shown, large, medium and small sand cores 4 can be clamped respectively.

[0049] The guide rail assembly includes two guide rails 2-1 arranged on both sides of the second direction of the base 1 and a slider 2-2 slidingly arranged on the two guide rails 2-1. The two ends of the push plate assembly are fixedly connected to the two sliders 2-2 respectively. By moving the slider 2-2 on the guide rail 2-1, the push plate assembly can be moved along the first direction of the base 1.

[0050] In order to limit the slider 2-2 on the guide rail 2-1, a limit block 2-6 is provided at both ends of the guide rail 2-1 in the longitudinal direction. When the push plate assembly moves to a suitable position to cooperate with the sand core 4, a limit assembly 2-7 for limiting the slider 2-2 is provided on the guide rail 2-1. Figure 7As shown, the limit assembly includes a locking block 2-7a arranged on the guide rail 2-1, a locking rod 2-7b passed through the locking block 2-7a, a locking column 2-7c arranged in the locking block 2-7a and eccentrically threaded with one end of the locking rod 2-7b, and a handle 2-7d fixedly connected to the other end of the locking rod 2-7b. A through groove is provided on the locking block 2-7a for the end face of the locking column 2-7c to abut against the guide rail 2-1. When the handle 2-7d is rotated, the handle 2-7d drives the locking rod 2-7b to rotate, and the locking column 2-7c moves axially along the locking rod 2-7b to abut or separate from the guide rail 2-1, thereby locking the slider 2-2 or releasing the slider 2-2.

[0051] The push plate assembly includes an L-shaped second support member 2-3, a push plate 2-4 fixed on the second support member 2-3, and a plurality of second reinforcing ribs 2-5 spaced apart on the second support member 2-3. A slide groove 2-4a extending along the second direction of the base 1 is provided on the push plate 2-4. Preferably, the slide groove 2-4a is in an inverted T shape.

[0052] like Figure 8 As shown, the fixing mechanism 3 includes at least one fixing assembly slidably arranged on the push plate 2-4. In this example, two fixing mechanisms 3 are provided on the push plate 2-4, which can be stably pressed against the processing panel 1-2 through the sand core 4. Specifically, the fixing assembly includes a locking rod 3-1 slidably arranged in the slide groove 2-4a, a fixed pressure plate 3-2 inserted through the locking rod 3-1, a support component 3-3 fixed to the lower end of the fixed pressure plate 3-2, and a locking nut 3-4 for locking the fixed pressure plate 3-2. The locking rod 3-1 is a screw and a sliding block 3-1a matching the slide groove 2-4a is provided at the lower end. The locking rod 3-1 is inserted into the fixed pressure ring on the side of the sand core 4. The fixed pressure plate is pressed against the fixed pressure ring 4-1 through the locking nut. At the same time, the support component 3-3 abuts against the upper end, thereby pressing the sand core 4 against the processing panel 1-2.

[0053] In order to facilitate the adjustment of the position of the fixed pressure plate 3-2, a waist-shaped groove is provided on the fixed pressure plate 3-2. During use, the position of the fixed pressure plate 3-2 can be adjusted as needed to adapt to the fixed pressure ring 4-1.

[0054] In order to further optimize the implementation effect of the present invention, a positioning assembly is provided on at least one side of the second direction of the base 1, and the positioning assembly includes a plurality of positioning blocks 5 arranged at intervals. When the sand core 4 is clamped, the plurality of positioning blocks 5 abut against one side of the second direction of the sand core 4 to position the sand core 4, and then the sand core 4 is pressed onto the processing panel 1-2 via two fixing mechanisms 3.

[0055] In this example, an adjustment groove 1-2b extending along the first direction is provided on the processing panel 1-2, and a plurality of positioning holes are provided in the adjustment groove 1-2b. A plurality of positioning blocks 5 are locked in the corresponding positioning holes 1-2a by pins. When in use, the position of the positioning block 5 can be adjusted as needed.

[0056] The working principle of this utility model is:

[0057] Place the fixture on the workbench, and position it through the positioning key 6 on the workbench and the positioning groove on the support plate 1-1d. The two push plate assemblies move and open on the guide rail assembly, and place the sand core 4 on the processing panel 1-2 after sticking it to multiple positioning blocks 5. The two push plate assemblies move relative to each other and fit the side of the sand core 4. At this time, the push plate 2-4 is positioned by the positioning assembly, and the fixing mechanism 3 is installed on the push plate 2-4. The sand core 4 is pressed tightly by the fixed pressure plate 3-2 so that the sand core 4 is locked on the processing panel 1-2. The equipment rough-processes the sand core, and then hoistes the fixture to another workstation to fine-process the sand core, and then hoistes the fixture to the turntable, releases the lock of the fixing mechanism 3 on the sand core 4, opens the push plate assembly and takes out the sand core 4.

[0058] In summary, the fixture can realize the processing and transportation of sand cores of various sizes and varieties, reduce damage to the sand cores, and improve production efficiency.

[0059] The above examples are intended only to illustrate the technical concepts and features of this utility model. Their purpose is to enable those familiar with the art to understand the content of this utility model and implement it accordingly. They are not intended to limit the scope of protection of this utility model. Any equivalent changes or modifications based on the spirit of this utility model shall be included in the scope of protection of this utility model.

Claims

1. A universal sand mold transfer fixture, characterized in that: include: base; Two moving mechanisms are symmetrically mounted on the base and located on both sides of the base in a first direction; Two fixing mechanisms are respectively mounted on the two moving mechanisms and are movably arranged along the second direction of the base. The fixing mechanisms press the sand core onto the base, and the second direction is perpendicular to the first direction.

2. The universal sand mold transfer fixture according to claim 1, characterized in that: The base comprises a supporting frame and a processing panel fixed on the supporting frame. The two moving mechanisms are installed on the processing panel. The processing panel is provided with a plurality of drain holes.

3. The universal sand mold transfer fixture according to claim 2, characterized in that: The support frame includes a field-shaped frame and first support components respectively provided at opposite ends of the frame, wherein the frame is a square tube connection structure; The first supporting assembly includes an L-shaped first supporting member fixed to the end of the frame and a plurality of first reinforcing ribs spaced apart on the first supporting member.

4. The universal sand mold transfer fixture according to claim 3, characterized in that: The bottom of the frame is provided with support plates at the positions where the square tubes are connected, and four support plates located in the middle of the outer periphery of the frame are provided with positioning grooves.

5. The universal sand mold transfer fixture according to claim 1, characterized in that: The moving mechanism includes a guide rail assembly installed on the base and a push plate assembly slidably matched with the guide rail assembly, and the fixing mechanism is slidably arranged on the push plate assembly.

6. The universal sand mold transfer fixture according to claim 5, characterized in that: The guide rail assembly includes two guide rails arranged on both sides of the second direction of the base and a slider slidably arranged on the two guide rails. The two ends of the push plate assembly are fixedly connected to the two sliders respectively. Limit blocks are respectively provided at both ends of the guide rail in the length direction. A limit assembly for limiting the slider is provided on the guide rail.

7. The universal sand mold transfer fixture according to claim 5, characterized in that: The push plate assembly includes an L-shaped second support member, a push plate fixed on the second support member, and a plurality of second reinforcing ribs spaced apart on the second support member. The push plate is provided with a sliding groove extending along the second direction of the base.

8. The universal sand mold transfer fixture according to claim 7, characterized in that: The fixing mechanism includes at least one fixing component slidably arranged on the push plate, and the fixing component includes a locking rod slidably arranged in the slide groove, a fixed pressure plate inserted through the locking rod, a support component fixed to the lower end of the fixed pressure plate and a locking nut for locking the fixed pressure plate, the locking rod is a screw and a sliding block matching the slide groove is provided at the lower end, the locking rod is inserted into the fixed pressure ring on the side of the sand core, and the fixed pressure plate is pressed against the fixed pressure ring through the locking nut, and at the same time, the support component abuts against the upper end of the push plate.

9. The universal sand mold transfer fixture according to claim 1, characterized in that: A positioning assembly is provided on at least one side of the base in the second direction, and the positioning assembly includes a plurality of positioning blocks arranged at intervals.

10. The universal sand mold transfer fixture according to claim 9, characterized in that: The base is provided with an adjustment slot extending along a first direction, and the positions of the plurality of positioning blocks are adjustable and arranged in the adjustment slot.

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