Fastening device for casting

Abstract

The utility model relates to a fastening device for casting, which comprises a base and a plurality of fastening components movably arranged on the base, the base is provided with a placing surface for placing a casting mold, the placing surface is provided with a plurality of mounting grooves, and each mounting groove extends to the side edge of the base and forms an opening state on the side edge. And the fastening assembly is arranged in the mounting groove in a sliding manner, so that the casting mold between the fastening end of the fastening assembly and the placing surface is fastened through the fastening assembly.

Description

Technical Field

[0001] The utility model relates to a casting technology, in particular to a fastening device which can be used with molds of various sizes, in particular to a fastening device for casting. Background Art

[0002] Sand casting is a method of producing castings by using molding sand and core sand as molding materials to create a mold, which is then filled with molten metal under gravity. The molding materials used in this method are inexpensive and readily available, and the molds are simple to manufacture. This method is suitable for single-piece, batch, and mass production of castings, and has long been a fundamental process in casting production. The molds used in the casting process typically consist of two parts, upper and lower. To ensure a tight connection between the two molds, they are typically secured using external fastening assemblies or built-in fastening assemblies. While incorporating fastening assemblies into the mold itself provides effective fastening, the molds typically need to be placed on a transport device for easy handling, requiring additional fixing assemblies between the mold and the transport device. While these additional assemblies can effectively secure the mold, the adjustable parts are relatively complex to move or exhibit significant resistance during movement. Utility Model Content

[0003] The technical problem to be solved by the present invention is that the existing fastening device has a relatively large resistance during the adjustment / movement of the fastening part. In view of the above defect, a fastening device for casting is provided.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] A fastening device for casting is constructed, comprising a base and a plurality of fastening assemblies movably arranged on the base. The base has a placement surface for placing the casting mold, the placement surface is provided with a plurality of mounting grooves, and at least one end of each mounting groove extends to the side edge of the base and forms an open state on the side. The fastening assembly is movably arranged in the mounting groove so that the casting mold is fastened between the fastening end of the fastening assembly and the placement surface through the fastening assembly.

[0006] Preferably, the fastening assembly includes a slide, an arm is provided on the upper surface of the slide, an adjusting screw is movably provided on the arm, rollers are provided on both sides of the slide through a rotating shaft, the lower end of the roller rim is located on the outer side of the lower surface of the slide, and the upper end of the roller rim is located on the lower side of the upper surface of the slide.

[0007] Preferably, the support arm includes a first support arm arranged vertically and a second support arm arranged horizontally, the lower end of the first support arm is fixedly connected to the upper side of the slide, and the upper end of the first support arm is fixedly connected to one end of the second support arm, so that the first support arm and the second support arm are L-shaped, and an adjusting screw is connected to the end of the second support arm through a threaded connection, an adjusting handle is provided at the upper end of the adjusting screw, and a pressing terminal is provided at the lower end. When in use, the pressing terminal is pressed against the upper side of the casting mold to tighten the casting mold placed on the base.

[0008] Preferably, the pressing terminal is rotatably connected to the lower end of the adjusting screw to prevent the pressing terminal from rotating synchronously with the adjusting screw during the tightening process.

[0009] Preferably, bosses are symmetrically provided on the inner sides of the two groove walls of the installation groove near the groove opening, so that the installation groove is in the shape of a "convex" character.

[0010] Preferably, the fastening assembly is located in the mounting groove in the horizontal direction and can move along the length direction of the mounting groove; in the vertical direction, in the non-fastened state, the lower end of the fastening assembly is in rolling contact with the bottom of the mounting groove through a roller, and in the fastened state, the upper side of the slide in the fastening assembly is in pressure contact with the lower side of the boss, so that the fastening assembly remains relatively fixed to the base in the vertical direction.

[0011] Preferably, the fastening device further comprises a pressing plate, which is in the shape of an elongated strip. When in use, the pressing plate is placed on the upper side of the casting mold just below the pressing terminal so that the low-voltage end can be pressed against the pressing plate.

[0012] The beneficial effects of the present invention are:

[0013] 1. The utility model provides a mounting groove on the base, which extends to the side of the base and is open on the side wall, so that the fastening components can be quickly replaced or installed according to actual conditions.

[0014] 2. The fastening assembly of the utility model includes a slide, on which a roller is provided through a rotating shaft. When the fastening assembly is set on the base through the mounting groove and is in a non-fastened state, the roller contacts the bottom of the mounting groove, and the upper side of the slide is separated from the lower side of the boss of the mounting groove. In this way, when the position of the fastening assembly on the base is adjusted, the movement between the fastening assembly and the mounting groove is achieved by rotating the roller, and there is no sliding friction in this process.

[0015] 3. When the mold placed on the base is fastened by the utility model, the adjusting screw is rotated so that the pressing terminal directly or indirectly presses against the upper side of the mold. As the adjusting screw rotates, the upper side of the slide gradually comes into pressure contact with the lower side of the boss of the mounting groove, and the mold is kept relatively fixed on the base through the fastening assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. 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 work:

[0017] Figure 1 This is a three-dimensional diagram of Example 1 of the present utility model.

[0018] Figure 2 This is a sectional perspective view of Example 1 of the present utility model.

[0019] Figure 3 It is a stereoscopic view of the fastening assembly in Example 1 and Example 2 of the present utility model.

[0020] Figure 4 This is a three-dimensional diagram of embodiment 2 of the present invention. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will be described clearly and completely in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example 1

[0023] like Figure 1-3 As shown, the utility model is a fastening device for casting, comprising a base 1 and a plurality of fastening components 2 movably arranged on the base 1, the base 1 having a placement surface 101 for placing the casting mold, the placement surface 101 having a plurality of mounting grooves 102, the fastening components 2 being movably arranged in the mounting grooves 102, and in order to facilitate the installation / disassembly of the fastening components 2, each mounting groove 102 extends to one side or both sides of the base 1, and forms an open state at one end or both ends of the mounting groove 102, so that the fastening component 2 can be arranged in the mounting groove 102 according to actual needs, so that the fastening end of the fastening component 2 (the pressing terminal described below is the fastening end here) and the casting mold between the placement surface 101 can be fastened by the fastening component 2.

[0024] In some embodiments, the mounting groove 102 is arranged along the length and / or width direction of the base 1 , and can certainly be arranged along other directions, such as the diagonal line of the base 1 .

[0025] In some embodiments, the fastening assembly 2 includes a slide 201, which is a plate-like structure. A support arm 202 is provided on the upper surface of the slide 201, and an adjusting screw 203 is movably provided on the support arm 202. Rollers 204 are provided on both sides of the slide 201 through a rotating shaft. The lower end of the rim of the roller 204 is located on the outer side of the lower surface of the slide 201, and the upper end of the rim of the roller 204 is located on the lower side of the upper surface of the slide 201. This can reduce the resistance of the fastening assembly 2 when it moves in the installation groove 102, thereby making the fastening assembly 2 easier to move.

[0026] Furthermore, in some embodiments, the support arm 202 includes a vertically disposed first support arm 2021 and a horizontally disposed second support arm 2022. The lower end of the first support arm 2021 is welded to the upper side of the slide 201, and the upper end of the first support arm 2021 is welded to one end of the second support arm 2022. Of course, other connection methods may be used instead of welding, such as bolt fastening or threaded connection. One end of the second support arm 2022 is disposed at the upper end of the first support arm 2021, so that the first and second arms 2021 and 2022 form an L-shape. An adjusting screw 203 is threadedly connected to the end of the second arm 2022 away from the first arm 2021. The height position of the adjusting screw 203 can be changed by rotating the adjusting screw 203 forward or backward. An adjusting handle 2031 is provided at the upper end of the adjusting screw 203 and a pressing terminal 2032 is provided at the lower end. When in use, the adjusting screw 203 is rotated to lower the position of the pressing terminal 2032 until the pressure of the pressing terminal 2032 is against the upper side of the casting mold, thereby tightening the casting mold placed on the base 1.

[0027] In some embodiments, the pressing terminal 2032 is rotatably connected to the lower end of the adjusting screw 203 to prevent the pressing terminal 2032 from rotating synchronously with the adjusting screw 203 during the tightening process. Specifically, the pressing terminal 2032 and the adjusting screw 203 are connected via a bearing (the specific structure of the bearing is not shown in the prior art drawings). The outer sleeve of the bearing is fixedly connected to the pressing terminal 2032, and the inner sleeve of the bearing is fixedly connected to the lower end of the adjusting screw 203. In this way, when the pressing terminal 2032 presses against the upper side of the casting mold, the pressing terminal 2032 does not rotate with the rotation of the screw, thereby preventing the pressing terminal 2032 from rotating with the adjusting screw 203 and causing wear on the mold surface.

[0028] In some embodiments, bosses 1021 are symmetrically provided on the inner sides of the two groove walls of the mounting groove 102 near the groove opening, so that the mounting groove is in the shape of a "convex" character. In this way, when the fastening component 2 is arranged in the mounting groove 102, the fastening component 2 can move in the opposite direction of the length of the mounting groove 102 in the horizontal direction; in the vertical direction, (in the non-fastened state) the lower end of the fastening component 2 is in rolling contact with the bottom of the mounting groove 102 through the roller 204, and the fastening component 2 does not contact the lower side of the boss 1021, that is, the upper side of the slide 201 does not contact the lower side of the boss 1021. The roller 204 can verify the rolling of the groove bottom of the mounting groove 102, and (in the fastened state) the upper side of the slide 201 in the fastening component 2 is in pressure contact with the lower side of the boss 1021, so that the fastening component 2 remains relatively fixed to the base 1 in the vertical direction. It should be noted that during the tightening state, the adjusting screw 203 rotates to cause the pressing terminal to gradually descend. After the pressing terminal contacts the upper surface of the mold, as the adjusting screw continues to rotate, the low-voltage terminal is pressed against the upper surface of the mold, and the slide of the tightening terminal is gradually raised until the upper surface of the slide is in pressure contact with the lower surface of the boss of the notch of the mounting groove, and the mold is then fixed to the base through the tightening assembly.

[0029] In order to ensure that the fastening component 2 can slide / roll in the installation groove 102, the distance between the upper side of the slide 201 and the lower end of the roller 204 is greater than the distance between the lower side of the boss 1021 and the bottom of the installation groove 102. This can ensure that in the non-fastened state, the upper side of the slide 201 and the lower side of the boss 1021 are in a separated state, so that when the slide 201 moves in the installation groove 102, there will be no sliding friction between the upper side of the slide 201 and the boss 1021.

[0030] Example 2

[0031] Further, if Figure 3-4 As shown, the difference between this embodiment and embodiment 1 is that it also includes a pressing plate 3, which is mainly used for molds with flat upper and lower surfaces or flat upper and lower end face edges. The pressing plate 3 is long and strip-shaped, so that the fastening component 2 can evenly apply downward pressure to the mold through the pressing plate 3, so that the mold can be more firmly fixed on the base. When in use, the pressing plate 3 is placed on the upper side of the casting mold directly below the pressing terminal 2032, so that the pressing terminal 2032 can be pressed on the pressing plate.

[0032] It should be understood that the present invention is described by way of certain embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. Furthermore, under the guidance of the present invention, these features and embodiments may be modified to suit specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A fastening device for casting, comprising a base and a plurality of fastening components movably arranged on the base, characterized in that: The base has a placement surface for placing the casting mold, and a plurality of mounting grooves are opened on the placement surface, and at least one end of each mounting groove extends to the side of the base and forms an open state on the side. The fastening component is movably arranged in the mounting groove so that the fastening end of the fastening component and the casting mold between the placement surface can be fastened by the fastening component.

2. A casting fastening device according to claim 1, characterized in that: The fastening assembly includes a slide, an arm is provided on the upper surface of the slide, an adjusting screw is movably provided on the arm, rollers are provided on both sides of the slide through a rotating shaft, the lower end of the roller rim is located on the outer side of the lower surface of the slide, and the upper end of the roller rim is located on the lower side of the upper surface of the slide.

3. A casting fastening device according to claim 2, characterized in that: The support arm includes a first support arm arranged vertically and a second support arm arranged horizontally. The lower end of the first support arm is fixedly connected to the upper side of the slide, and the upper end of the first support arm is fixedly connected to one end of the second support arm, so that the first support arm and the second support arm are L-shaped. An adjusting screw is connected to the end of the second support arm through a threaded connection, an adjusting handle is provided at the upper end of the adjusting screw, and a pressing terminal is provided at the lower end. When in use, the pressing terminal presses against the upper side of the casting mold to tighten the casting mold placed on the base.

4. A casting fastening device according to claim 3, characterized in that: The pressing terminal is rotatably connected to the lower end of the adjusting screw to prevent the pressing terminal from rotating synchronously with the adjusting screw during the tightening process.

5. A casting fastening device according to claim 4, characterized in that: Bosses are symmetrically provided on the inner side of the groove wall of the installation groove near the groove opening, so that the installation groove is in a "convex" shape.

6. A casting fastening device according to claim 5, characterized in that: In the horizontal direction, the fastening assembly is located in the mounting groove and can move along the length direction of the mounting groove; in the vertical direction, in the non-fastened state, the lower end of the fastening assembly is in rolling contact with the bottom of the mounting groove through the roller, and in the fastened state, the upper side of the slide in the fastening assembly is in pressure contact with the lower side of the boss, so that the fastening assembly remains relatively fixed to the base in the vertical direction.

7. A casting fastening device according to any one of claims 1 to 6, characterized in that: The fastening device also includes a pressing plate, which is in the shape of an elongated strip. When in use, the pressing plate is placed on the upper side of the casting mold just below the pressing terminal so that the low-voltage end can be pressed against the pressing plate.

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