Casting clamp structure and sawing machine thereof

Abstract

The utility model relates to the technical field of casting machining, and discloses a casting clamp structure and a sawing machine thereof. A clamping block; a replacement plate; the connecting structure comprises a first inserting hole, a pin hole, a convex block and a pin, the convex block is fixedly connected with the replacement plate, the first inserting hole is formed in the side wall of the clamping block, the pin hole is formed in the top of the clamping block, the pin hole is communicated with the first inserting hole, the convex block can be inserted into the first inserting hole, and the pin can be inserted into the pin hole to limit the convex block to slip off. Downward pressure is provided for a cylindrical casting through the two replacement plates inclining towards the bottom, limiting of the circumferential face of the cylinder is achieved, the better clamping effect is achieved, the casting is prevented from jumping and falling off, for regular castings such as a square block or rod body structure, the replacement plates can be detached, a workpiece is clamped through the planes of the clamping blocks, and the clamping efficiency is improved. And the clamping adaptability is better, the stability is higher when a workpiece is cut, and the precision is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of casting processing, in particular to a casting clamp structure and a sawing machine thereof. Background Art

[0002] Sawing on a sawing machine is the first step in precision cutting and is an important part of the casting processing process. Sawing can save materials and reduce the amount of secondary processing.

[0003] The prior art discloses a sawing machine clamp (publication number: CN103862311A), which includes a rotating beam arranged above a workbench, the rotating beam including a hinged end and a free end, a first fixing device hinged to the rotating beam is provided below the hinged end of the rotating beam, and a second fixing device for fixing the end is provided below the free end of the rotating beam, the first fixing device and the second fixing device can be detachably fixed to the workbench, and at least one pressing device for automatically pressing the material placed on the workbench is provided on the rotating beam along its length direction.

[0004] In the existing technology, the clamping and limiting of the casting is mainly achieved by bringing the plates closer to each other. However, for castings with curved surfaces, such as cylindrical structures, the contact area between the casting and the plates is limited due to the clamping of the plates, which makes the clamping and limiting effect of the casting not ideal. During the sawing process, there will be an offset phenomenon, which will affect the fracture.

[0005] To this end, we propose a casting fixture structure and a sawing machine thereof. Utility Model Content

[0006] The utility model mainly solves the above-mentioned technical problem of poor adaptability to the clamping of workpieces and provides a casting clamp structure and a sawing machine thereof.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions, a casting fixture structure and a sawing machine thereof, comprising:

[0008] The base is a plate-like structure used for installation, with mounting holes at the four corners of the base;

[0009] Clamping blocks are movably arranged on the top of the base and there are two of them. The two clamping blocks can be close to each other to clamp the workpiece;

[0010] Replacement plate, which can be detachably mounted on the wall of the clamping block to limit the workpiece;

[0011] A connecting structure is arranged between the replacement plate and the clamping block for disassembly and assembly of the replacement plate. The connecting structure includes a first socket, a pin hole, a protrusion and a pin. The protrusion is fixedly connected to the replacement plate. The side wall of the clamping block is provided with a first socket, and the top of the clamping block is provided with a pin hole. The pin hole and the first socket are communicated. The protrusion can be inserted into the first socket, and the pin can be inserted into the pin hole to limit the protrusion from slipping.

[0012] As a preferred embodiment of the present invention, the connection structure further includes a positioning groove, the wall surface of the protrusion is provided with the positioning groove, and the pin can pass through the positioning groove to limit the protrusion.

[0013] As a preferred embodiment of the present invention, the replacement plate forms a prismatic structure, and the opposite side walls of the two clamping blocks are provided with the same replacement plates, and the inclined surfaces of the two replacement plates are relatively distributed.

[0014] As a preferred embodiment of the present invention, the protrusion is integrally formed with the replacement plate, the protrusion forms a rectangular block structure, and the first insertion hole and the protrusion cooperate with each other.

[0015] As a preferred embodiment of the present invention, the positioning groove forms a rectangular notch, the pin is adapted to the positioning groove, the depth of the pin hole is greater than the height of the first insertion hole, the pin is adapted to the pin hole and is at the same height, and the pin is fixed by a bolt and a clamping block.

[0016] As a preferred embodiment of the present invention, a countersunk hole is formed through the top of the pin, a threaded hole is formed on the inner bottom surface of the clamping block, and the bolt passes through the countersunk hole and is connected with the threaded hole to lock and fix the protrusion.

[0017] A sawing machine comprises a machine platform, on which all the above-mentioned casting fixture structures are arranged, and the base is locked and fixed to the machine platform by bolts.

[0018] The utility model provides a casting fixture structure and a sawing machine thereof, which has the following beneficial effects:

[0019] 1. A casting clamp structure and a sawing machine thereof are provided with a detachable replacement plate. By installing the replacement plate, when two clamping blocks approach each other, downward pressure is provided to the cylindrical casting through the two replacement plates inclined toward the bottom, thereby limiting the circumferential surface of the cylinder, having a better clamping effect, and preventing the casting from jumping and falling off. For regular castings, such as squares or rod structures, the replacement plate can be removed and the workpiece can be clamped by the flat surface of the clamping block, which has better clamping adaptability, greater stability and higher precision when cutting the workpiece.

[0020] 2. This casting fixture structure and its sawing machine, in order to realize the convenient disassembly and assembly of the replacement plate, align the protrusion with the first socket and insert it, insert the pin from the pin hole, the pin passes through the positioning groove and extends to the bottom of the protrusion, and is locked with the help of a bolt. The replacement plate can be quickly disassembled and assembled through a simple mortise and tenon structure, with strong connection stability, simple disassembly and assembly, and high efficiency.

[0021] 3. The casting fixture structure and sawing machine thereof, by setting the above-mentioned casting fixture structure, achieve good adaptability to the workpiece, good clamping effect, and simple and flexible replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is one of the overall three-dimensional diagrams of the utility model;

[0023] Figure 2 This is the second overall stereogram of the utility model;

[0024] Figure 3 This is a three-dimensional diagram of the clamping block of the utility model;

[0025] Figure 4 This is a three-dimensional diagram of the replacement plate of the utility model;

[0026] Figure 5 It is a three-dimensional diagram of the pin of the utility model.

[0027] Legend: 10, base; 11, clamping block; 12, replacement plate; 20, first plug hole; 21, pin hole; 22, protrusion; 23, positioning groove; 24, pin. DETAILED DESCRIPTION

[0028] A casting fixture structure and sawing machine thereof, such as Figure 1 、 Figure 2 and Figure 3 Shown, including:

[0029] The base 10 is a plate-like structure for installation, and the four corners of the base 10 are provided with mounting holes;

[0030] The clamping blocks 11 are movably arranged on the top of the base 10 and are two in number. The two clamping blocks 11 can be close to each other to clamp the workpiece;

[0031] The replacement plate 12 is detachably mounted on the wall of the clamping block 11 for limiting the workpiece. Specifically, a slide groove is provided on the top surface of the base 10, in which two sliders are slidably connected. The wall surface of the base 10 is rotatably connected with a bidirectional screw rod, which is threadedly connected to the two sliders. The two sliders are moved closer or farther away from each other by rotating the screw rod, and the two clamping blocks 11 are respectively fixed on the two sliders. The screw rod can be rotated manually or by a motor, which will not be described in detail here.

[0032] like Figure 4As shown, the replacement plate 12 forms a prismatic structure, and the opposite side walls of the two clamping blocks 11 are provided with the same replacement plates 12, and the inclined surfaces of the two replacement plates 12 are relatively distributed. By providing a detachable replacement plate 12, by installing the replacement plate 12, when the two clamping blocks 11 are close to each other, the two replacement plates 12 inclined toward the bottom provide downward pressure on the cylindrical casting, thereby achieving the limitation of the cylindrical circumferential surface, having a better clamping effect, and preventing the casting from jumping and falling off. For regular castings, such as squares or rod structures, the replacement plate 12 can be removed, and the plane of the clamping block 11 can be used to clamp the workpiece, which has better clamping adaptability, is more stable when cutting the workpiece, and has higher precision.

[0033] like Figure 3 、 Figure 4 and Figure 5 As shown, the connection structure is provided between the replacement plate 12 and the clamping block 11 for the disassembly and assembly of the replacement plate 12, the connection structure includes a first socket 20, a pin hole 21, a protrusion 22 and a pin 24, the protrusion 22 is fixedly connected to the replacement plate 12, the side wall of the clamping block 11 is provided with a first socket 20, the top of the clamping block 11 is provided with a pin hole 21, the pin hole 21 and the first socket 20 are communicated, the protrusion 22 can be inserted into the first socket 20, the pin 24 can be inserted into the pin hole 21 to limit the protrusion 22 from slipping, the connection structure also includes a positioning groove 23, the wall surface of the protrusion 22 is provided with a positioning groove 23, the pin 24 can pass through the positioning groove 23 to limit the protrusion 22, the protrusion 22 is integrally formed with the replacement plate 12, the protrusion 22 forms a rectangular block structure, the first socket 20 and the protrusion 22 cooperate with each other, The positioning groove 23 forms a rectangular notch, and the pin 24 is adapted to the positioning groove 23. The depth of the pin hole 21 is greater than the height of the first insertion hole 20. The pin 24 is adapted to the pin hole 21 and is at the same height. The pin 24 is locked and fixed with the clamping block 11 by a bolt. A countersunk hole is provided on the top of the pin 24, and a threaded hole is provided on the inner bottom surface of the clamping block 11. The bolt passes through the countersunk hole and is connected with the threaded hole to lock and fix the protrusion 22. In order to realize convenient disassembly and assembly of the replacement plate 12, by aligning the protrusion 22 with the first insertion hole 20 and inserting it, the pin 24 is inserted from the pin hole 21, and the pin 24 extends through the positioning groove 23 to the bottom of the protrusion 22. The pin 24 can be locked with the help of a bolt. The quick disassembly and assembly of the replacement plate 12 can be achieved through a simple mortise and tenon structure. The connection is stable, easy to disassemble and assemble, and efficient.

[0034] Not shown in the figure, a sawing machine includes a machine table, on which all the above-mentioned casting fixture structures are provided, and the base 10 is locked and fixed to the machine table by bolts. Of course, a saw for cutting should also be installed on the machine table, and the saw can be movably installed on the machine table through a slide rail. By setting the above-mentioned casting fixture structure, good adaptability to the workpiece is achieved, the clamping effect is good, and the replacement is simple and flexible.

[0035] The working principle of the present invention is as follows: by providing a detachable replacement plate 12, by installing the replacement plate 12, when the two clamping blocks 11 are close to each other, the two replacement plates 12 inclined toward the bottom provide downward pressure on the cylindrical casting, thereby limiting the cylindrical circumferential surface, having a better clamping effect, and preventing the casting from jumping and falling off. For regular castings, such as blocks or rod structures, the replacement plate 12 can be removed and the flat surface of the clamping block 11 can be used to clamp the workpiece;

[0036] In order to achieve convenient disassembly and assembly of the replacement plate 12, the protrusion 22 is aligned with the first socket 20 and inserted, and the pin 24 is inserted from the pin hole 21. The pin 24 passes through the positioning groove 23 and extends to the bottom of the protrusion 22. The pin 24 is locked with the help of a bolt. The replacement plate 12 can be quickly disassembled and assembled through a simple mortise and tenon structure.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A casting fixture structure and sawing machine thereof, characterized in that: include: A base (10) is a plate-like structure for installation, and four corners of the base (10) are provided with installation holes; Clamping blocks (11) are movably arranged on the top of the base (10) and are provided in pairs. The two clamping blocks (11) can be close to each other to clamp the workpiece; A replacement plate (12) is detachably mounted on the wall of the clamping block (11) for limiting the workpiece; A connection structure is provided between a replacement plate (12) and a clamping block (11) for disassembling and assembling the replacement plate (12), the connection structure comprising a first insertion hole (20), a pin hole (21), a projection (22) and a pin (24), the projection (22) being fixedly connected to the replacement plate (12), a side wall of the clamping block (11) being provided with a first insertion hole (20), a top of the clamping block (11) being provided with a pin hole (21), the pin hole (21) being communicated with the first insertion hole (20), the projection (22) being capable of being inserted into the first insertion hole (20), and the pin (24) being capable of being inserted into the pin hole (21) to limit the projection (22) from slipping off.

2. The casting fixture structure and sawing machine thereof according to claim 1, characterized in that: The connection structure further comprises a positioning groove (23), the positioning groove (23) is provided on the wall surface of the protrusion (22), and the pin (24) can pass through the positioning groove (23) to limit the protrusion (22).

3. The casting fixture structure and sawing machine thereof according to claim 1, characterized in that: The replacement plate (12) forms a prism structure, and the opposite side walls of the two clamping blocks (11) are both provided with the same replacement plate (12), and the inclined surfaces of the two replacement plates (12) are distributed oppositely.

4. The casting fixture structure and sawing machine thereof according to claim 1, characterized in that: The protrusion (22) and the replacement plate (12) are integrally formed, the protrusion (22) forms a rectangular block structure, and the first insertion hole (20) and the protrusion (22) are used in conjunction with each other.

5. The casting fixture structure and sawing machine thereof according to claim 2, characterized in that: The positioning groove (23) forms a rectangular notch, the pin (24) is adapted to the positioning groove (23), the depth of the pin hole (21) is greater than the height of the first insertion hole (20), the pin (24) is adapted to the pin hole (21) and has the same height, and the pin (24) is locked and fixed with the clamping block (11) by a bolt.

6. The casting fixture structure and sawing machine thereof according to claim 5, characterized in that: A countersunk hole is provided through the top of the pin (24), a threaded hole is provided on the inner bottom surface of the clamping block (11), and the bolt passes through the countersunk hole and is connected with the threaded hole to lock and fix the protrusion (22).

7. A sawing machine, comprising a machine table, characterized in that: The machine platform is provided with a casting fixture structure according to any one of claims 1 to 6, and the base (10) is locked and fixed to the machine platform by bolts.

Images