Multi-station riser sawing tool

Abstract

The utility model relates to the technical field of casting machining, and discloses a multi-station riser sawing tool which comprises a rack. The rack comprises a bottom plate, a top plate, a left side plate and a right side plate; two groups of cushion blocks are arranged on the bottom plate and are respectively arranged on the left half part and the right half part of the bottom plate; a group of left positioning holes are formed in the left side plate, and a group of right positioning holes are formed in the right side plate; the left positioning hole and the right positioning hole are consistent in size and correspond in position. Adjustable positioning pins are connected to the left positioning hole and the right positioning hole; two pressing mechanisms are arranged on the top plate and are respectively arranged on the left half part and the right half part of the top plate; the pressing mechanism comprises an air cylinder arranged above the top plate and a pressing head arranged below the top plate. The air cylinder comprises an air cylinder shaft, and the air cylinder shaft penetrates through the top plate and is connected with the pressing head. The multi-station positioning device is simple in structure and easy to disassemble and assemble, has multiple stations, can accurately and stably position workpieces, and is high in machining efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of casting processing, in particular to a multi-station riser sawing tool. Background Art

[0002] The reducer housing is one of the main components of the reducer. It is a sturdy shell used to accommodate the components of the reduction mechanism. Since the reducer housing usually contains many complex geometric shapes, such as the inner cavity, bearing seat, reinforcing ribs and other structural features, it is often manufactured using a casting molding process. In addition, during the manufacturing process, in order to ensure the quality of the reducer housing blank, a convex riser is set on its top during casting. As an indispensable part of the casting process, the riser is mainly used to prevent defects in the casting during the cooling process. Its design purpose is to store additional liquid metal when the casting is formed, so that the metal liquid can be replenished in time during cooling and shrinkage to prevent the formation of shrinkage cavities and shrinkage. It also has the function of exhausting gas and collecting slag.

[0003] In actual production, risers often need to be removed through a specific cutting process in order to facilitate subsequent finishing. This step requires not only precise position adjustment, but also the fixation of the blank to ensure smooth cutting. At present, special cutting tools are often used to fix the blank in the processing position of the sawing machine, and then use saw blades to cut the risers. For example, the patent with publication number CN216096759U discloses a piston pouring riser sawing and positioning tool, which uses V-blocks for positioning and pressure blocks to assist in fixing the workpiece position, and can reliably press and position the workpiece.

[0004] However, this set of tooling has many components, and the positioning and adjustment steps are relatively cumbersome (such as the need to coordinate the size and position of the adjustment pads of the V-shaped positioning blocks; the need to additionally install clamping blocks and pressure strips, etc.). In actual applications, its processing efficiency is low, and disassembly and assembly are cumbersome. In addition, this set of tooling cannot meet the processing requirements of large-sized parts such as reducer housings, nor can it match the external structure of reducer housings. If this tooling is still used, it will be necessary to open an additional mold to make larger V-blocks (the existing standard V-blocks may not meet the size requirements, and even if the adjustment pads are added, the size that the V-blocks can adapt to is still very limited), which increases the cost of the tooling and increases the difficulty of assembly and disassembly of the tooling itself. Utility Model Content

[0005] The utility model aims to provide a multi-station riser sawing tool with a simple structure, simple assembly and disassembly, multiple stations, and the ability to accurately and stably position workpieces, thereby achieving high processing efficiency.

[0006] The basic solution provided by the utility model is: a multi-station sawing riser tool, including a frame; the frame includes a bottom plate, a top plate, a left plate and a right plate; two groups of pads are provided on the bottom plate and are respectively arranged on the left half and the right half of the bottom plate; a group of left positioning holes is provided on the left plate, and a group of right positioning holes is provided on the right plate; the left positioning holes and the right positioning holes are of the same size and corresponding positions; adjustable positioning pins are connected to the left positioning holes and the right positioning holes; two clamping mechanisms are provided on the top plate and are respectively arranged on the left half and the right half of the top plate; the clamping mechanism includes a cylinder provided above the top plate and a pressure head provided below the top plate; the cylinder includes a cylinder shaft, which passes through the top plate and is connected to the pressure head.

[0007] The working principle and advantages of the present invention are as follows: the left half area of ​​the base plate is used as the first working station, and the right half area of ​​the base plate is used as the second working station. The two workpieces to be processed are placed in the left half area and the right half area of ​​the base plate respectively, and supported by a group of pads respectively. The pads not only support the workpieces, but also play the role of positioning the workpieces in the front and back directions. The position of the adjustable positioning pin is adjusted so that it is pressed against one side surface of the workpiece. At the same time, the other side surface of the workpiece is pressed against the other workpiece, thereby realizing the left and right positioning and limiting of the two workpieces. Then the cylinder is controlled to extend its cylinder axis, and the pressure head connected to the cylinder axis is pressed down, thereby pressing the workpiece and fixing the position of the workpiece; thus completing the rapid clamping and positioning of the two workpieces. Then a saw blade is used to saw the riser along the sawing line of the workpiece.

[0008] The utility model relates to a multi-station sawing riser tool, which has a simple overall structure and is easy to assemble and disassemble. No additional adjustment of components is required during use, and the various structural shapes of the tool are standard, easy to manufacture, and have a low manufacturing cost. In addition, one set of tooling can provide two workstations, and the processing efficiency is relatively high. The tooling adopts a pad for positioning in the front-to-back direction, and adopts an adjustable locating pin and the offset of two workpieces for positioning in the left-to-right direction. It can accurately and stably position the workpiece, and press the workpiece through a clamping mechanism, thereby ensuring stability during the cutting process. Among them, the provision of the adjustable locating pin enables the tooling to have a certain size adjustment range, and can be applied to reducer housing blanks with size deviations, ensuring accurate and reliable positioning; and the adjustment method of the adjustable locating pin is simple and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a front view of the workpiece structure to be processed in an embodiment of a multi-station sawing riser tool of the utility model;

[0010] Figure 2 This is a top view of the workpiece structure to be processed in an embodiment of a multi-station sawing riser tool of the utility model;

[0011] Figure 3This is a front view of the overall structure of a multi-station sawing riser tooling embodiment of the utility model in a workpiece clamping state;

[0012] Figure 4 This is a top view of the overall structure of a multi-station sawing riser tooling embodiment of the utility model in a workpiece clamping state;

[0013] Figure 5 This is a front view of the overall structure of an embodiment of a multi-station sawing riser tooling of the utility model in a state without a workpiece;

[0014] Figure 6 This is a top view of the overall structure of an embodiment of a multi-station sawing riser tool of the present invention in a state without a workpiece. DETAILED DESCRIPTION

[0015] The following is a further detailed description through specific implementation methods:

[0016] The marks in the drawings of the specification include: base plate 1, oblong hole 101, pad 2, connecting screw 3, left side plate 4, left side of left side plate 401, first positioning hole 402, second positioning hole 403, right side plate 5, right side of right side plate 501, third positioning hole 502, fourth positioning hole 503, adjustable positioning pin 6, top plate 7, clamping mechanism 8, cylinder 801, cylinder shaft 802, pressure head 803, workpiece 9, riser 901.

[0017] The embodiment is basically as shown in the attached Figure 5 、 Figure 6 Shown: A multi-station riser sawing tool, including a frame and connecting screws 3.

[0018] In this embodiment, the workpiece 9 to be processed is a rough part of the reducer housing, as shown in the attached Figure 1 and Figure 2 As shown; in the figure, the thick solid line is the outline of the reducer housing product; the thin solid line is the outline of the riser 901.

[0019] The frame includes a bottom plate 1, a top plate 7, a left side plate 4, and a right side plate 5. In this embodiment, the bottom plate 1, the left side plate 4, the top plate 7, and the right side plate 5 are connected to form a frame structure. Holes can be provided at the joints between the plates to allow them to be fixed together using bolts or the like to form a stable frame.

[0020] Two sets of pads 2 are provided on the base plate 1, located on the left and right halves of the base plate 1. Each set of pads 2 is symmetrically provided with two pads, which are located along the transverse midline of the base plate 1, respectively, on the front and rear sides of the base plate 1. The pads 2 are T-shaped, with the larger end of the T-shaped pads 2 contacting the upper surface of the base plate 1.

[0021] Specifically, in this embodiment, four independent long slots are further provided on the base plate 1. The four long slots are symmetrically arranged along the transverse midline of the base plate 1, and each long slot is used to cooperate with a pad 2. A threaded hole is provided on the bottom surface of the pad 2. In a specific application, the pad 2 can be fixed to the target position on the base plate 1 by passing a screw through the long slot and then cooperating with the threaded hole. With this structure, the pad 1 is easy to disassemble and assemble, and the setting position of the pad 1 can be adjusted within a certain range based on the long slot, and the structural applicability is stronger.

[0022] The left side plate 4 is provided with a set of left locating holes, and the right side plate 5 is provided with a set of right locating holes. The left and right locating holes are of the same size and positioned in corresponding positions. Each of the left and right locating holes is connected to an adjustable locating pin 6. The top plate 7 is provided with two clamping mechanisms 8, one on the left and one on the right halves of the top plate 7. The clamping mechanisms 8 include a cylinder 801 located above the top plate 7 and a pressure head 803 located below the top plate 7. The cylinder 801 includes a cylinder shaft 802, which passes through the top plate 7 and is connected to the pressure head 803.

[0023] The two pressing mechanisms 8 correspond to a group of pads 2 respectively. Specifically, taking the pressing mechanism 8 provided on the left half of the top plate 7 as an example, the central axis of the pressure head 803 of the pressing mechanism 8 is aligned with the center point of the two pads 2 on the left half of the bottom plate 1 (e.g. Figure 6 As shown, the intersection of the symmetry line of the two pads 2 and the midline of the two pads 2 is aligned as the center point. This arrangement ensures that when the clamping mechanism 8 is pressurized, it can be relatively aligned with the center position of the workpiece 9 to ensure reliable clamping.

[0024] The left positioning hole is 5-10 mm away from the left side 401 of the left plate; the right positioning hole is 5-10 mm away from the right side 501 of the right plate. The left side 401 of the left plate and the right side 501 of the right plate are on the same side as the riser 901 of the workpiece 9 to be processed. This layout allows for targeted positioning of the workpiece 9, with the positioning area close to the riser 901 to be sawed. This allows for positioning of one side of the workpiece 9 while ensuring stability in the sawing area.

[0025] Specifically, the left positioning holes include a first positioning hole 402 and a second positioning hole 403; the first positioning holes 402 and the second positioning holes 403 are located on the same longitudinal line and are respectively provided in the upper and lower halves of the left side plate 4; the right positioning holes include a third positioning hole 502 and a fourth positioning hole 503; the third positioning holes 502 and the fourth positioning holes 503 are located on the same longitudinal line and are respectively provided in the upper and lower halves of the right side plate 5. The first positioning hole 402 and the second positioning hole 403 (in conjunction with the adjustable positioning pin 6) are used to complete the lateral positioning of the workpiece 9 located in the left half of the base plate 1. The third positioning hole 502 and the fourth positioning hole 503 (in conjunction with the adjustable positioning pin 6) are used to complete the lateral positioning of the workpiece 9 located in the right half of the base plate 1. The axis of the second positioning hole 403 is located above the upper surface of the pad 2, and the distance from the upper surface of the pad 2 is 0.5 to 1.5 mm; in actual application, this distance value is determined according to the position of the reliable surface of the workpiece 9 to be processed after it is placed on the pad 1, so as to ensure that the adjustable positioning pin 6 passing through this positioning hole can resist the workpiece 9 to achieve positioning.

[0026] The axis of the first positioning hole 402 is located below the top surface of the workpiece 9 to be processed and is 5 to 8 mm away from the top surface of the workpiece 9 to be processed. With this structure and layout, two points of positioning are provided on one side, and the two points are respectively close to the upper and lower surfaces of the workpiece 9, which can fully limit the position of the workpiece 9 and ensure reliable positioning.

[0027] The base plate 1 is also symmetrically provided with two oblong holes 101, located on the left and right sides of the base plate 1, respectively. Each oblong hole 101 is provided with two connecting screws 3, which are used to connect the base plate 1 to the operating platform (in this embodiment, the operating platform is specifically the processing platform of the sawing machine). The connecting screws 3 securely mount the entire frame to the operating platform, facilitating subsequent sawing of the riser 901 with a saw blade or the like. Furthermore, the provision of the oblong holes 101 allows for adjustable mounting positions of the connecting screws 3, making them suitable for different types of operating platforms.

[0028] In specific applications, such as Figure 3 、 Figure 4As shown, the left half area of ​​the base plate 1 is used as the first work station, and the right half area of ​​the base plate 1 is used as the second work station. The frame is firmly mounted on the operating platform by connecting screws 3. The two workpieces 9 to be processed are respectively placed on the left half area of ​​the base plate 1 and the right half area of ​​the base plate 1, and supported by a group of pads 2. The pads 2 not only support the workpieces 9, but also play a role in positioning the workpieces 9 in the front and rear directions. In addition, when placing the workpieces 9, the riser 901 to be sawed of the workpiece 9 is placed on the same side as the left side 401 of the left plate and the right side 501 of the right plate. The position of the adjustable positioning pin 6 is adjusted so that it is pressed against one side surface of the workpiece 9. At the same time, the other side surface of the workpiece 9 is pressed against the other workpiece 9, thereby realizing the positioning and limiting of the two workpieces 9 in the left and right directions. The cylinder 801 is then controlled to extend its cylinder shaft 802, and the pressure head 803 connected to the cylinder shaft 802 presses down, thereby pressing the workpiece 9 and fixing the position of the workpiece 9, thus completing the rapid clamping and positioning of the two workpieces 9. A saw is then used to saw the riser 901 along the sawing line of the workpiece 9.

[0029] The multi-station riser sawing tool provided in this embodiment has a simple structure, is easy to assemble and disassemble, has two stations, can accurately and stably position two workpieces 9 at one time, and has high processing efficiency.

[0030] The above description is merely an embodiment of the present invention. Common knowledge such as the known specific structures and characteristics in the scheme is not described in detail here. A person of ordinary skill in the art is aware of all common technical knowledge in the technical field to which the utility model belongs before the application date or priority date, is able to obtain all existing technologies in the field, and has the ability to apply conventional experimental means before that date. A person of ordinary skill in the art can, under the guidance of this application, improve and implement the present scheme in combination with his or her own abilities. Some typical known structures or methods should not become an obstacle for a person of ordinary skill in the art to implement the present application. It should be pointed out that a person of ordinary skill in the art can make several variations and improvements without departing from the structure of the present invention. These should also be considered as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A multi-station riser sawing tool, characterized in that: The machine comprises a frame; the frame comprises a bottom plate, a top plate, a left plate and a right plate; two groups of pads are provided on the bottom plate and are respectively arranged on the left half and the right half of the bottom plate; a group of left positioning holes is provided on the left side plate, and a group of right positioning holes is provided on the right side plate; the left positioning holes and the right positioning holes are of the same size and have corresponding positions; adjustable positioning pins are connected to the left positioning holes and the right positioning holes; two clamping mechanisms are provided on the top plate and are respectively arranged on the left half and the right half of the top plate; the clamping mechanism comprises a cylinder provided above the top plate and a pressure head provided below the top plate; the cylinder comprises a cylinder shaft, which passes through the top plate and is connected to the pressure head.

2. The multi-station riser sawing tool according to claim 1, characterized in that: The distance between the left positioning hole and the left side of the left plate is 5 to 10 mm; the distance between the right positioning hole and the right side of the right plate is 5 to 10 mm; the left side of the left plate and the right side of the right plate are on the same side as the riser of the workpiece to be processed.

3. The multi-station riser sawing tool according to claim 1, characterized in that: The left positioning hole includes a first positioning hole and a second positioning hole; the first positioning hole and the second positioning hole are on the same longitudinal line and are respectively arranged on the upper half and the lower half of the left side plate; the right positioning hole includes a third positioning hole and a fourth positioning hole; the third positioning hole and the fourth positioning hole are on the same longitudinal line and are respectively arranged on the upper half and the lower half of the right side plate.

4. The multi-station riser sawing tool according to claim 1, characterized in that: Each group of pads is symmetrically provided with two pads, and are respectively arranged on the front side and the rear side of the bottom plate along the transverse center line of the bottom plate.

5. The multi-station riser sawing tool according to claim 1, characterized in that: The pad is a T-shaped pad, and the large end of the T-shaped pad is in contact with the upper surface of the base plate.

6. The multi-station riser sawing tool according to claim 3, characterized in that: The axis of the second positioning hole is located above the upper surface of the cushion block, and the distance from the upper surface of the cushion block is 0.5 to 1.5 mm.

7. The multi-station riser sawing tool according to claim 3, characterized in that: The axis of the first positioning hole is located below the top surface of the workpiece to be processed, and the distance from the top surface of the workpiece to be processed is 5 to 8 mm.

8. The multi-station riser sawing tool according to claim 1, characterized in that: The bottom plate is also symmetrically provided with two oblong holes, which are respectively close to the left side and the right side of the bottom plate.

9. The multi-station riser sawing tool according to claim 8, characterized in that: It also includes connecting screws; two connecting screws are provided at each oblong hole; the connecting screws are used to connect the base plate and the operating platform.

10. The multi-station riser sawing tool according to claim 1, characterized in that: The two pressing mechanisms correspond to a group of pads respectively.

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