Shaping machine for machining pin holes of large castings

By installing a lifting mechanism and a sliding device under the worktable of the shaper, the problems of laborious processing and safety hazards in the machining of large castings are solved, and high-precision and stable machining results are achieved.

CN121491406AInactive Publication Date: 2026-02-10FUJIAN LEWU MASCH TECH CO LTD
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Patent Information

Application Number
CN202511924203.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-19
Publication Date
2026-02-10
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The shaper used for machining pin holes in large castings is laborious and inconvenient to operate, and poses safety hazards, especially when lifting and moving large parts left and right.

Method used

A lifting mechanism is installed under the worktable of the shaper. The casting is lifted and lowered precisely by pneumatic control. Combined with longitudinal and transverse sliding devices, the stable displacement of the worktable is ensured. Cast iron connecting rods are used to improve the load-bearing capacity, and ventilation holes and slots are provided to prevent thermal expansion and contraction.

Benefits of technology

It enables high-precision machining of large castings, making operation more convenient, reducing safety hazards, and extending the service life of equipment.

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Abstract

The invention provides a shaping machine for machining pin holes of large castings. A shaping machine for machining large casting pin holes comprises a cutter, a ram connected to the rear portion of the cutter, a workbench device arranged below the ram, a main control switch installed on the side face of the workbench device, a base fixed to the lower portion of the main control switch, a transverse sliding device arranged in the workbench device, and a workbench connected to the front portion of the transverse sliding device. A longitudinal sliding device is installed on the side face of the workbench, a lifting device is fixed below the longitudinal sliding device, a loading plate is arranged in the lifting device, a lifting mechanism is installed below the loading plate, a pneumatic base is fixed below the lifting mechanism, and a supporting elastic piece is arranged in the loading plate. According to the device, the lifting mechanism mounted below the workbench is pneumatically controlled, so that the workbench can be accurately lifted and descended under the condition that a large casting is mounted on the workbench, the device is convenient to operate, and potential safety hazards are prevented.
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Description

Technical Field

[0001] This invention relates to the field of shaper equipment technology, and more particularly to a shaper for machining pin holes in large castings. Background Technology

[0002] A shaper is a planer that performs linear reciprocating motion. The ram carries the cutting tool, and it gets its name from the shape of the tool holder at the front of the ram, which resembles a bull's head. Shapers are mainly used in small to medium-sized machines. The main motion of most shapers uses a crank-rocker mechanism, resulting in uneven ram movement. Types of shapers include ordinary shapers, contour shapers, and moving shapers.

[0003] The shaper used for machining pin holes in large castings sometimes requires lifting and lateral displacement of the large parts. Due to the size of the parts, this is particularly laborious and inconvenient, and also poses certain safety hazards. Summary of the Invention

[0004] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description and other accompanying drawings.

[0005] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a shaper for machining pin holes in large castings. The lifting device under the worktable can lift and lower the large castings under the control of the main control switch, and the accuracy is high. It can be controlled by input values, making it more convenient to operate and making the machining process safer.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a shaper for machining pin holes in large castings, comprising a cutting tool, a ram connected to the rear of the cutting tool, a worktable device disposed below the ram, a main control switch mounted on the side of the worktable device, a base fixed below the main control switch, a transverse sliding device disposed within the worktable device, a worktable connected in front of the transverse sliding device, a longitudinal sliding device mounted on the side of the worktable, and a lifting device fixed below the longitudinal sliding device. The ram allows the cutting tool to reciprocate back and forth on the top of the machine. During the machining of large castings, the cutting tool can cut on the surface of the casting. The side-mounted main control switch controls the cutting progress of the casting, preventing operators from getting too close and causing hidden dangers during machining.

[0007] As a further preferred embodiment of the present invention, a load-bearing plate is provided inside the lifting device, a lifting mechanism is installed below the load-bearing plate, and a pneumatic base is fixed below the lifting mechanism. The pneumatic mechanism within the base frame is used to control the lifting device, which can more accurately achieve the lifting distance of large workpieces, making the pin holes of the workpieces more accurate during the processing.

[0008] As a further preferred embodiment of the present invention, a supporting spring is provided inside the load-bearing plate, a supporting fixing rod is fixed to the side of the supporting spring, a load-bearing plate slider is provided below the supporting fixing rod, a second load-bearing plate connecting rod is installed inside the load-bearing plate slider, and a first load-bearing plate connecting rod is provided next to the second load-bearing plate connecting rod. Both the first and second connecting rods are made of cast iron as raw material because the first and second connecting rods bear a large load during use, and cast iron can maintain its working state under such stress, reducing the risk of damage.

[0009] As a further preferred embodiment of the present invention, a base frame is provided inside the pneumatic base, a base sliding member is provided inside the base frame, and a pneumatic mechanism is fixed to the side of the base sliding member. The lifting device can slide within the base sliding member of the pneumatic base to realize the raising and lowering of the load plate. The structure is simple and stable, and has a large load-bearing capacity in daily use.

[0010] As a further preferred embodiment of the present invention, the lifting mechanism is provided with a plurality of first connecting rods, and a second connecting rod is connected between the plurality of first connecting rods. A pneumatic support rod is installed on the side of the second connecting rod. The second load plate connecting rod is connected to the lifting mechanism. When the lifting device is raised, the connecting rod slides to the left; when the lifting device is lowered, the connecting rod slides to the right.

[0011] As a further preferred embodiment of the present invention, a transverse support seat is provided inside the transverse sliding device, a helical rod is installed inside the transverse support seat, a transverse feed handle is connected to the side of the helical rod, and a longitudinal device movable groove is provided on the outer side of the transverse support seat. The transverse feed handle allows the entire worktable device to move left and right, and the fine threads on the helical rod allow for precise control of the distance the worktable moves.

[0012] As a further preferred embodiment of the present invention, a longitudinal fixing plate is provided inside the longitudinal sliding device, and a longitudinal fixing plate groove is formed inside the longitudinal fixing plate groove, in which a fixing rod is installed. The longitudinal fixing device enables the worktable to be fixed in place under the control of the lifting device, making the worktable more stable during processing and ensuring that large workpieces have more accurate dimensions after processing.

[0013] As a further preferred embodiment of the present invention, the workbench has a plurality of ventilation holes on its side, and ventilation slots are provided next to the ventilation holes. Because the workbench is large and integrally molded, it is prone to cracking due to thermal expansion and contraction during use. The ventilation holes and ventilation slots can effectively help the workbench dissipate heat, thus extending its service life.

[0014] As a further preferred embodiment of the present invention, a fixed baffle is connected below the worktable, and a fixed baffle hole is formed in the fixed baffle. A worktable surface groove is provided above the worktable. The worktable is welded together with the lifting device, and the interior of the worktable has a hollow structure to reduce its own weight, thereby reducing the force on the lifting device below and protecting it from damage.

[0015] As a further preferred embodiment of the present invention, the worktable is mounted directly below the cutting tool, and the lifting device is located at the center below the worktable. The lifting device, positioned directly below the worktable, can bear most of the worktable's weight, making the lifting device more stable during lifting.

[0016] The beneficial effects of this invention are as follows: In this invention, the lifting mechanism installed below the workbench is pneumatically controlled, enabling precise lifting and lowering even when large castings are installed on the workbench. This makes the equipment easy to operate and prevents potential safety hazards.

[0017] This invention achieves displacement adjustment of the worktable through a longitudinal fixing device around the worktable and a transverse feed handle, making the displacement of the worktable more accurate. The openings and slots on the side of the worktable make the one-piece molded worktable less prone to breakage. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a shaper for machining pin holes in large castings according to the present invention.

[0019] Figure 2 This is a three-dimensional structural diagram of the worktable device in a shaper for machining pin holes of large castings according to the present invention.

[0020] Figure 3 This is a three-dimensional structural diagram of the lifting device in a shaper for machining pin holes of large castings according to the present invention.

[0021] Figure 4 This is a front structural diagram of the lifting device in a shaper for machining pin holes of large castings according to the present invention.

[0022] Figure 5 This is a three-dimensional structural diagram of the load-bearing plate in a shaper used for machining pin holes in large castings according to the present invention.

[0023] Figure 6 This is a three-dimensional structural diagram of the pneumatic base in a shaper for machining pin holes of large castings according to the present invention.

[0024] Figure 7 This is a three-dimensional structural diagram of the lifting mechanism in a shaper for machining pin holes of large castings according to the present invention.

[0025] Figure 8 This is a three-dimensional structural diagram of the transverse sliding device in a shaper for machining pin holes of large castings according to the present invention.

[0026] Figure 9 This is a three-dimensional structural diagram of the longitudinal sliding device in a shaper for machining pin holes of large castings according to the present invention.

[0027] Figure 10 This is a three-dimensional structural diagram of the worktable in a shaper for machining pin holes in large castings according to the present invention.

[0028] In the diagram: Main control switch-1, slide block-2, cutting tool-3, worktable assembly-4, base-5. Horizontal sliding device-41, worktable-42, longitudinal sliding device-43, lifting device-44, load-bearing plate-441, lifting mechanism-442, pneumatic base-443, support spring-loaded piece-4411, support fixing rod-4412, first load-bearing plate connecting rod-4413, second load-bearing plate connecting rod-4414, load-bearing plate slider-4415, base sliding component-4431, pneumatic mechanism-4432, base frame-4433. First connecting rod - 4421, pneumatic support rod - 4422, second connecting rod - 4423, transverse feed handle - 411, transverse support seat - 412, spiral rod - 413, longitudinal device movable slot - 414, longitudinal fixing plate - 451, fixing rod - 452, longitudinal fixing plate slot - 453, ventilation hole - 4311, ventilation slot - 4312, worktable slot - 4313, fixing baffle - 4314, fixing baffle hole - 4315. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0030] Furthermore, in the description of this invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0031] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two main bodies are not connected through a transitional structure, but rather formed as a whole through a connecting structure. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0032] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Example 1

[0033] Reference Figures 1 to 7 As shown: Figure 1 This is a schematic diagram of the structure of a shaper for machining pin holes in large castings according to the present invention. Figure 2 This is a three-dimensional structural diagram of the worktable device in a shaper for machining pin holes of large castings according to the present invention. Figure 3 This is a three-dimensional structural diagram of the lifting device in a shaper for machining pin holes of large castings according to the present invention. Figure 4 This is a front structural diagram of the lifting device in a shaper for machining pin holes of large castings according to the present invention. Figure 5 This is a three-dimensional structural diagram of the load-bearing plate in a shaper used for machining pin holes in large castings according to the present invention. Figure 6 This is a three-dimensional structural diagram of the pneumatic base in a shaper for machining pin holes of large castings according to the present invention. Figure 7 This is a three-dimensional structural diagram of the lifting mechanism in a shaper for machining pin holes of large castings according to the present invention.

[0034] This invention provides a shaper for machining pin holes in large castings. The shaper includes a cutting tool 3, a ram 2 connected to the rear of the cutting tool 3, a worktable device 4 below the ram 2, a main control switch 1 mounted on the side of the worktable device 4, a base 5 fixed below the main control switch 1, a transverse sliding device 41 inside the worktable device 4, a worktable 42 connected to the front of the transverse sliding device 41, a longitudinal sliding device 43 mounted on the side of the worktable 42, a lifting device 44 fixed below the longitudinal sliding device 43, a load plate 441 inside the lifting device 44, a lifting mechanism 442 mounted below the load plate 441, and a pneumatic base 443 fixed below the lifting mechanism 442. A support spring 4411 is provided, and a support fixing rod 4412 is fixed to the side of the support spring 4411. A load plate slider 4415 is provided below the support fixing rod 4412. A second load plate connecting rod 4414 is installed inside the load plate slider 4415. A first load plate connecting rod 4413 is provided next to the second load plate connecting rod 4414. A base frame 4433 is provided inside the pneumatic base 443. A base sliding member 4431 is provided inside the base frame 4433. A pneumatic mechanism 4432 is fixed to the side of the base sliding member 4431. A plurality of first connecting rods 4421 are provided inside the lifting mechanism 442. A second connecting rod 4423 is connected between the plurality of first connecting rods 4421. A pneumatic support rod 4422 is installed on the side of the second connecting rod 4423.

[0035] Detailed usage and function of this embodiment: In this invention, after the large casting is installed above the workbench device 4, it is activated by the pneumatic mechanism 4432 below the workbench device 4. The multiple first connecting rods 4421 in the lifting mechanism 442 intersect, with a pneumatic support rod 4422 and a second connecting rod 4423 fixed in the middle. The pneumatic mechanism 4432 pushes the pneumatic support rod 4422 upward. Since the first connecting rod 4421 is connected to the second load plate connecting rod 4414 above and to the base sliding member 4431 below, the second load plate connecting rod 4414 slides in the load plate slider 4415 during the pushing process. When the load plate 441 rises to the same plane as the tool 3, the main control switch 1 is activated, and the tool 3 moves back and forth in the slide ram 2. The tool 3 drills pin holes in the workpiece above the workbench device 4. Example 2

[0036] Reference Figures 8-10 As shown: Figure 8This is a three-dimensional structural diagram of the transverse sliding device in a shaper for machining pin holes of large castings according to the present invention. Figure 9 This is a three-dimensional structural diagram of the longitudinal sliding device in a shaper for machining pin holes of large castings according to the present invention. Figure 10 This is a three-dimensional structural diagram of the worktable in a shaper for machining pin holes in large castings according to the present invention.

[0037] Furthermore, a transverse support base 412 is provided inside the transverse sliding device 41, a spiral rod 413 is installed inside the transverse support base 412, a transverse feed handle 411 is connected to the side of the spiral rod 413, a longitudinal device movable groove 414 is provided on the outside of the transverse support base 412, a longitudinal fixing plate 431 is provided inside the longitudinal sliding device 43, a longitudinal fixing plate groove 433 is opened inside the longitudinal fixing plate 431, a fixing rod 432 is installed in the longitudinal fixing plate groove 433, a plurality of ventilation holes 4311 are opened on the side of the worktable 42, a ventilation groove 4312 is provided next to the ventilation holes 4311, a fixing baffle 4314 is connected below the worktable 42, a fixing baffle hole 4315 is opened in the fixing baffle 4314, and a worktable surface groove 4313 is provided above the worktable 42.

[0038] Detailed usage and function of this embodiment: In this invention, after the large casting is installed above the worktable 42, the position of the worktable 42 needs to be adjusted. First, rotate the transverse feed handle 411 to rotate the screw rod 413. The screw rod 413 drives the worktable 42 to move laterally on the transverse support 412. After the transverse displacement is completed, start the lifting device 44 to raise the worktable 42 to the specified height. Then, fix the height of the worktable 42 through the fixed rod 432 in the longitudinal sliding device 43 and the fixed baffle hole 4315 in the fixed baffle 4314 through the longitudinal fixed plate groove 433. After completion, start processing the equipment to keep the equipment stable during processing. Example 3

[0039] Reference Figures 1-10 As shown: Figure 1 This is a schematic diagram of the structure of a shaper for machining pin holes in large castings according to the present invention. Figure 2 This is a three-dimensional structural diagram of a lifting device in a shaper for machining pin holes of large castings according to the present invention. Figure 3 This is a front structural diagram of the lifting device in a shaper for machining pin holes of large castings according to the present invention. Figure 4 This is a three-dimensional structural diagram of the pneumatic base in a shaper for machining pin holes of large castings according to the present invention. Figure 5 This is a three-dimensional structural diagram of the lifting mechanism in a shaper for machining pin holes of large castings according to the present invention. Figure 6This is a three-dimensional structural diagram of the load-bearing plate in a shaper used for machining pin holes in large castings according to the present invention. Figure 7 This is a three-dimensional structural diagram of the worktable device in a shaper for machining pin holes of large castings according to the present invention. Figure 8 This is a three-dimensional structural diagram of a longitudinal fixing device in a shaper for machining pin holes of large castings according to the present invention. Figure 9 This is a three-dimensional structural diagram of the worktable and lifting device in a shaper for machining pin holes of large castings according to the present invention. Figure 10 This is a three-dimensional structural diagram of the worktable in a shaper for machining pin holes in large castings according to the present invention.

[0040] Detailed usage and function of this embodiment: In this invention, after the large casting is installed above the workbench device 4, it is activated by the pneumatic mechanism 4432 below the workbench device 4. Multiple first connecting rods 4421 within the lifting mechanism 442 intersect, with a pneumatic support rod 4422 and a second connecting rod 4423 fixed in the middle. The pneumatic mechanism 4432 pushes the pneumatic support rod 4422 upwards. Since the first connecting rod 4421 is connected to the second load-bearing plate connecting rod 4414 above and to the base sliding member 4431 below, during the pushing process, the second... The load plate connecting rod 4414 slides within the load plate slider 4415. When the load plate 441 rises to the same plane as the tool 3, the height of the worktable 42 is fixed by the longitudinal sliding device 43. The transverse feed handle 411 is rotated to make the screw rod 413 rotate. The screw rod 413 drives the worktable 42 to move laterally on the transverse support 412. After the transverse displacement is completed, the main control switch 1 is activated, and the tool 3 moves back and forth in the slide ram 2. The tool 3 makes pin holes on the workpiece above the worktable device 4.

[0041] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solutions described in this invention, or by designing similar technical solutions by those skilled in the art under the inspiration of the technical solutions described in this invention, falls within the protection scope of this invention.

Claims

1. A shaper for machining pin holes in large castings, characterized in that, The device includes a cutting tool, a slide block connected to the rear of the cutting tool, a worktable device located below the slide block, a main control switch mounted on the side of the worktable device, a base fixed below the main control switch, a transverse sliding device inside the worktable device, a worktable connected in front of the transverse sliding device, a longitudinal sliding device mounted on the side of the worktable, and a lifting device fixed below the longitudinal sliding device.

2. A shaper for machining pin holes in large castings according to claim 1, characterized in that: The lifting device is equipped with a load-bearing plate, a lifting mechanism is installed below the load-bearing plate, and a pneumatic base is fixed below the lifting mechanism.

3. A shaper for machining pin holes in large castings according to claim 2, characterized in that: The load-bearing plate is provided with a support spring, and a support fixing rod is fixed to the side of the support spring. A load-bearing plate slider is provided below the support fixing rod. A second load-bearing plate connecting rod is installed in the load-bearing plate slider, and a first load-bearing plate connecting rod is provided next to the second load-bearing plate connecting rod.

4. A shaper for machining pin holes in large castings according to claim 2, characterized in that: The pneumatic base is provided with a base frame, and the base frame is provided with a base slider. A pneumatic mechanism is fixed to the side of the base slider.

5. A shaper for machining pin holes in large castings according to claim 2, characterized in that: The lifting mechanism is provided with a plurality of first links, and a second link is connected between the plurality of first links. A pneumatic support rod is installed on the side of the second link.

6. A shaper for machining pin holes in large castings according to claim 1, characterized in that: The transverse sliding device is provided with a transverse support seat, and a spiral rod is installed inside the transverse support seat. A transverse feed handle is connected to the side of the spiral rod, and a longitudinal device movable groove is provided on the outside of the transverse support seat.

7. A shaper for machining pin holes in large castings according to claim 1, characterized in that: The longitudinal sliding device is provided with a longitudinal fixing plate, and a longitudinal fixing plate groove is opened inside the longitudinal fixing plate, and a fixing rod is installed in the longitudinal fixing plate groove.

8. A shaper for machining pin holes in large castings according to claim 1, characterized in that: The workbench has a plurality of ventilation holes on its side, and ventilation slots are provided next to the ventilation holes.

9. A shaper for machining pin holes in large castings according to claim 7, characterized in that: A fixed baffle is connected below the workbench, and a fixed baffle hole is provided in the fixed baffle. A workbench surface groove is provided above the workbench.

10. A shaper for machining pin holes in large castings according to claim 9, characterized in that: The workbench is installed directly below the cutting tool, and the lifting device is located at the center below the workbench.