Finish machining equipment suitable for deep-cavity casting or deep-hole casting

Abstract

The invention discloses finish machining equipment suitable for a deep-cavity casting or a deep-hole casting. The finish machining equipment comprises an operation table, a workpiece positioning mechanism and a finish machining tool assembly, wherein the workpiece positioning mechanism and the finish machining tool assembly are both arranged on the operation table. By the adoption of the finish machining equipment suitable for the deep-cavity casting or the deep-hole casting, the tool beam is inserted into or penetrates through an inner cavity or hole of a workpiece, then the workpiece is fixed through the workpiece positioning assembly, the tool beam is fixed through the tool beam stabilizing assembly, and finally the tool driving device can drive the machining tool bits to rotate through the transmission assembly. The workpiece positioning table is matched to drive the workpiece to move in the length direction of the tool beam, finish machining of an inner cavity or a hole of the workpiece can be achieved, and the tool is particularly suitable for finish machining of a deep cavity or a deep hole; and moreover, the machining tool bit can be adaptively replaced according to the machining task and can be installed by selecting the corresponding position, the universality is good, and various machining operations such as turning, grinding and boring are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of finishing equipment, and particularly relates to a finishing equipment applicable to deep cavity castings or deep hole castings. Background Art

[0002] At present, the finishing of castings is mainly completed by a digital machining center (referred to as CNC for short), which has the advantages of high precision, high efficiency, versatility and automation.

[0003] However, the digital machining center is limited by the length, shape and size of the cutting tool and the tool holder, and it is difficult to machine the deep cavity or deep hole position of the casting. In particular, it is difficult to accurately control both the machining accuracy and the roughness. Especially for deep cavities or deep holes with a small space, the digital machining center is even unable to perform finishing operations on them.

[0004] It has become an urgent task to solve the above problems. Summary of the Invention

[0005] In view of this, the present invention provides a finishing equipment applicable to deep cavity castings or deep hole castings.

[0006] The technical solution is as follows:

[0007] The first aspect of the present application relates to a finishing equipment applicable to deep cavity castings or deep hole castings, including an operating table, a workpiece positioning mechanism and a finishing tool assembly both arranged on the operating table. The finishing tool assembly includes a tool beam horizontally arranged above the operating table, a tool driving device and a tool beam stabilizing component respectively arranged at both ends of the tool beam. The tool driving device and the tool beam stabilizing component are both installed on the operating table. The workpiece positioning mechanism includes a workpiece positioning table capable of translating along the length direction of the tool beam under the control of a translation control component and a workpiece positioning component arranged on the top of the workpiece positioning table. One end of the tool beam is fixedly connected to the tool driving device, and the other end is supported on the tool beam stabilizing component. The tool beam stabilizing component can lock or release the tool beam. The middle part of the tool beam passes through the workpiece positioning component, and at least one machining tool head is detachably installed on its side wall. The tool driving device can drive each machining tool head to rotate through a transmission component.

[0008] Using the above-mentioned finishing equipment applicable to deep cavity castings or deep hole castings, first insert or pass the tool beam into or through the inner cavity or hole of the workpiece, then fix the workpiece through the workpiece positioning component, fix the tool beam through the tool beam stabilizing component, and finally the tool driving device can drive each machining tool head to rotate through the transmission component, and cooperate with the workpiece positioning table to drive the workpiece to move along the length direction of the tool beam, so as to realize the finishing of the inner cavity or hole of the workpiece, especially suitable for the finishing of corresponding deep cavities or deep holes; moreover, the machining tool heads can be adaptively replaced according to the machining tasks and installed at corresponding positions, with good versatility, and can realize various machining operations such as turning, grinding, and boring.

[0009] In some embodiments, both the tool driving device and the tool beam stabilizing component are fixedly installed on the operating table.

[0010] In some embodiments, the tool driving device is rotatably installed on the first mounting seat, the tool beam stabilizing component is rotatably installed on the second mounting seat, both the first mounting seat and the second mounting seat are fixedly installed on the operating table, two adjusting bolts are relatively installed on both sides of the tool driving device, two arc-shaped guiding chutes respectively adapted to the corresponding adjusting bolts are formed on the first mounting seat, the two adjusting bolts are respectively locked or released and passed through the corresponding arc-shaped guiding chutes, and at least one rotation driving device for driving the tool driving device to rotate along the first mounting seat is installed on the first mounting seat.

[0011] In some embodiments, the workpiece positioning component includes a fixed clamping plate and a movable clamping plate oppositely arranged on both sides of the tool beam and at least one first quick clamp arranged on the side of the movable clamping plate away from the fixed clamping plate. The fixed clamping plate and each first quick clamp are fixedly installed on the top of the workpiece positioning table. The movable clamping plate is movably installed on the workpiece positioning table and can be forced by each first quick clamp to cooperate with the fixed clamping plate to clamp the workpiece between the two.

[0012] In some embodiments, a positioning table chute is recessed on the top of the workpiece positioning table, the tool beam passes through the positioning table chute, and a plurality of mutually parallel sliding guiding grooves are recessed on the bottom of the positioning table chute. Each sliding guiding groove extends from the movable clamping plate to the fixed clamping plate, and sliding guiding ribs respectively slidably matched with the sliding guiding grooves are protruded from the bottom of the movable clamping plate.

[0013] In some embodiments, the bottom of the movable clamping plate has a supporting plate extending away from the fixed clamping plate, the sliding guiding ribs are integrally formed at the bottom of the supporting plate, and a sliding guiding slot adapted to the supporting plate is recessed on the side wall of the positioning table chute close to the movable clamping plate. The supporting plate is slidably fitted and embedded in the sliding guiding slot.

[0014] In some embodiments, the bottom of the fixed clamping plate has a mounting plate extending away from the movable clamping plate. Two parallel strip-shaped bolt holes are formed in the mounting plate, and the extending direction of each strip-shaped bolt hole is perpendicular to the length direction of the tool beam. Connecting bolt holes corresponding to the strip-shaped bolt holes one by one are formed in the top of the workpiece positioning table, and two locking bolts are respectively screwed into the corresponding connecting bolt holes through the corresponding strip-shaped bolt holes.

[0015] In some embodiments, tool head mounting seats respectively corresponding to the processing tool heads are rotatably mounted on the tool beam. Each processing tool head is detachably mounted on the corresponding tool head mounting seat and rotates synchronously with the corresponding tool head mounting seat. The tool driving device can drive each tool head mounting seat to rotate through a transmission component.

[0016] In some embodiments, the tool beam stabilizing assembly includes a stabilizing assembly base, a fixed clamping block and a second quick clamp both fixedly mounted on the stabilizing assembly base. The tool beam is supported on the stabilizing assembly base. The fixed clamping block and the second quick clamp are respectively arranged on both sides of the tool beam, and the second quick clamp can cooperate with the fixed clamping block to clamp the tool beam therebetween.

[0017] In some embodiments, the translation control assembly includes a toothed plate fixedly mounted on the top of the workpiece positioning table along the length direction of the tool beam, a gear and a gear driving device both mounted on the workpiece positioning table. The gear meshes with the toothed plate, and the gear driving device is used to control the rotation of the gear. Description of the Drawings

[0018] Figure 1 Structural schematic diagram of the finishing tool assembly of the finishing equipment when it is in Embodiment 2;

[0019] Figure 2 Structural schematic diagram of the finishing tool assembly of the finishing equipment when it is in Embodiment 1;

[0020] Figure 3 Structural schematic diagram of the movable clamping plate;

[0021] Figure 4 Structural schematic diagram of the workpiece positioning table;

[0022] Figure 5 Structural schematic diagram of the tool beam;

[0023] Figure 6 Photo of machining a workpiece using the finishing tool assembly of the finishing equipment. Detailed Embodiments

[0024] The present invention will be further described below in conjunction with embodiments and the drawings.

[0025] As shown Figures 1-5 in the figure, a finishing equipment applicable to deep cavity castings or deep hole castings mainly includes an operating table 1, a workpiece positioning mechanism, and a finishing tool assembly. The workpiece positioning mechanism and the finishing tool assembly are both arranged on the operating table 1.

[0026] Among them, the finishing tool assembly has the following two embodiments:

[0027] Finishing tool assembly Embodiment 1:

[0028] Please refer to Figure 2 , the finishing tool assembly includes a tool beam 4, a tool driving device 5, and a tool beam stabilizing assembly 6. Among them, the tool beam 4 is arranged above the operating table 1 in the horizontal direction. The tool driving device 5 and the tool beam stabilizing assembly 6 are respectively arranged at both ends of the tool beam 4. One end of the tool beam 4 is fixedly connected to the tool driving device 5, and the other end is supported on the tool beam stabilizing assembly 6. The tool beam stabilizing assembly 6 can lock or release the tool beam 4, and moreover, the tool driving device 5 and the tool beam stabilizing assembly 6 are both installed on the operating table 1.

[0029] In this embodiment, both the tool driving device 5 and the tool beam stabilizing assembly 6 are fixedly installed on the operating table 1, which is simple, reliable, and easy to assemble.

[0030] At least one processing tool head 7 is detachably installed on the side wall of the tool beam 4. The tool driving device 5 can drive each processing tool head 7 to rotate through a transmission component 8. Specifically, tool head mounting seats 12 respectively corresponding to each processing tool head 7 are rotatably installed on the tool beam 4. The tool driving device 5 can drive each tool head mounting seat 12 to rotate through the transmission component 8. Each processing tool head 7 is respectively detachably installed on the corresponding tool head mounting seat 12. When the processing tool head 7 is installed on the corresponding tool head mounting seat 12, the processing tool head 7 rotates synchronously with the corresponding tool head mounting seat 12. Therefore, the processing tool head 7 can be adaptively replaced according to the processing task and selected to be installed at the corresponding position, with good versatility, and can realize various processing operations such as turning, grinding, and boring.

[0031] Among them, the tool driving device 5 preferably uses a servo motor, and the transmission component 8 preferably uses a pulley and a belt. It is simple and reliable for the servo motor to drive the corresponding tool head mounting seat 12 and the processing tool head 7 through the belt. It should be noted that the belt can also be replaced with common transmission components such as a timing belt and a nylon rope. A channel for the transmission component 8 to pass through is provided in the tool beam 4 to realize the built-in installation of the transmission component 8, so as to avoid the influence of dust and debris on the transmission component 8.

[0032] Furthermore, the tool driving device 5 is composed of servo motors with the same quantity as that of the machining tool heads 7. Each servo motor drives the corresponding tool head mounting seat 12 and the machining tool head 7 to rotate through the corresponding transmission component 8, so as to realize the independent control of each machining tool head 7, and further improve the machining precision.

[0033] In this embodiment, please refer to Figure 5 , the cross section of the tool beam 4 is preferably rectangular. Preferably, one machining tool head 7 is installed on each of the two side walls of the tool beam 4 that are perpendicular to each other, and the two machining tool heads 7 are perpendicular to each other, so as to adapt to more complex machining requirements.

[0034] The tool beam stabilizing component 6 includes a stabilizing component base 6a, a fixed clamping block 6b and a second quick clamp 6c that are all fixedly installed on the stabilizing component base 6a. The tool beam 4 is supported on the stabilizing component base 6a. The fixed clamping block 6b and the second quick clamp 6c are respectively arranged on both sides of the tool beam 4, and the second quick clamp 6c can cooperate with the fixed clamping block 6b to clamp the tool beam 4 between the two.

[0035] Specifically, when it is necessary to load or unload the workpiece, the second quick clamp 6c is in the unlocked state, and the workpiece can pass through the tool beam stabilizing component 6. When it is necessary to machine the workpiece, the second quick clamp 6c is in the locked state. The second quick clamp 6c pushes the tool beam 4 from one side onto the fixed clamping block 6b. At this time, both sides of the tool beam 4 are respectively abutted against the second quick clamp 6c and the fixed clamping block 6b. The overall structure is simple and reliable, and the whole operation is very convenient.

[0036] Finishing tool assembly Embodiment 2:

[0037] Please refer to Figure 1 , the structure of the finishing tool assembly in this embodiment is basically the same as that of the finishing tool assembly in Embodiment 1, and the difference lies in that: the tool driving device 5 is rotatably installed on the first mounting seat 9, the tool beam stabilizing component 6 is rotatably installed on the second mounting seat 10, both the first mounting seat 9 and the second mounting seat 10 are fixedly installed on the operating table 1, two adjusting bolts 11 are oppositely installed on both sides of the tool driving device 5, two arc-shaped guiding chutes 9a respectively adapted to the corresponding adjusting bolts 11 are provided on the first mounting seat 9, the two adjusting bolts 11 are respectively inserted through the corresponding arc-shaped guiding chutes 9a in a locking or releasing manner, and at least one rotation driving device 12 for driving the tool driving device 5 to rotate along the first mounting seat 9 is installed on the first mounting seat 9.

[0038] Therefore, after the tool beam stabilizing assembly 6 locks the tool beam 4, the tool beam 4, the tool driving device 5, and the tool beam stabilizing assembly 6, as a whole, can rotate relative to the first mounting seat 9 and the second mounting seat 10 under the control of the rotation driving device 12, while cooperating with the overall translation, so that each machining tool head 7 cooperates with the overall rotation of the finish machining tool assembly to achieve the finish machining operation of complex curved surfaces or complex machining curves.

[0039] It should be noted that when the rotation driving device 12 controls the overall rotation of the finish machining tool assembly, the two adjusting bolts 11 are in the unlocked state. When the finish machining operation of complex curved surfaces or complex machining curves is not required, the two adjusting bolts 11 are locked, so that the finish machining tool assembly will not rotate as a whole, ensuring the machining accuracy.

[0040] In this embodiment, the rotation driving device 12 is preferably an electric push rod with high control accuracy.

[0041] Please refer to Figures 1-4 , the workpiece positioning mechanism includes a workpiece positioning table 2 that can translate along the length direction of the tool beam 4 under the control of the translation control assembly and a workpiece positioning component 3 provided on the top of the workpiece positioning table 2. The middle part of the tool beam 4 passes through the workpiece positioning component 3. Among them, the function of the workpiece positioning component 3 is to fix the workpiece, and after the fixing is completed, the workpiece can be translated as a whole relative to the length direction of the tool beam 4 through the workpiece positioning table 2. It should be noted that the structure of the workpiece fixing device 3 can be designed by copying the shape of the workpiece to ensure the clamping reliability and stability of the workpiece.

[0042] In this embodiment, the workpiece positioning component 3 includes fixed clamping plates 3a and movable clamping plates 3b oppositely arranged on both sides of the tool beam 4 and at least one first quick clamp 3c arranged on the side of the movable clamping plate 3b away from the fixed clamping plate 3a. The fixed clamping plates 3a and the first quick clamps 3c are all fixedly installed on the top of the workpiece positioning table 2. The movable clamping plate 3b is movably installed on the workpiece positioning table 2 and can cooperate with the fixed clamping plate 3a to clamp the workpiece between the two under the urging of each first quick clamp 3c.

[0043] When the workpiece needs to be loaded or unloaded, each first quick clamp 3c is in the unlocked state, and the workpiece can be taken out or loaded. When the workpiece needs to be machined (at this time, the workpiece is sleeved outside the tool beam 4 and is located at the workpiece positioning component 3), each first quick clamp 3c is in the locked state, and each first quick clamp 3c pushes the movable clamping plate 3b to push the workpiece from one side onto the fixed clamping plate 3a. At this time, both sides of the workpiece are respectively in contact with the fixed clamping plate 3a and the movable clamping plate 3b. The overall structure is simple and reliable, and the whole operation is very convenient.

[0044] Further, in order to improve the stability and reliability of the sliding of the fixed clamping plate 3a on the workpiece positioning table 2, a positioning table chute 2a is formed by recessing the top of the workpiece positioning table 2. The tool beam 4 passes through the positioning table chute 2a. A plurality of mutually parallel sliding guide grooves 2b are formed by recessing the bottom of the positioning table chute 2a. Each sliding guide groove 2b extends from the movable clamping plate 3b to the fixed clamping plate 3a. The bottom of the movable clamping plate 3b protrudes to form sliding guide ribs 3b1 that are respectively in sliding fit with the sliding guide grooves 2b.

[0045] Further, the bottom of the movable clamping plate 3b has a support plate 3b2 extending away from the fixed clamping plate 3a. The sliding guide ribs 3b1 are integrally formed at the bottom of the support plate 3b2. A sliding guide slot 2a1 adapted to the support plate 3b2 is formed by recessing one side wall of the positioning table chute 2a close to the movable clamping plate 3b. The support plate 3b2 is slidably fitted and embedded in the sliding guide slot 2a1, thereby improving the stability and reliability of the installation of the movable clamping plate 3b.

[0046] Please refer to Figure 1 、 Figure 2 and Figure 5 ., although the fixed clamping plate 3a is fixedly installed, the bottom of the fixed clamping plate 3a has a mounting plate 3a1 extending away from the movable clamping plate 3b. Two mutually parallel strip-shaped bolt holes 3a11 are formed in the mounting plate 3a1. The extending direction of each strip-shaped bolt hole 3a11 is perpendicular to the length direction of the tool beam 4. Connecting bolt holes 2c corresponding to the strip-shaped bolt holes 3a11 are respectively formed in the top of the workpiece positioning table 2. Two locking bolts 3d are respectively screwed into the corresponding connecting bolt holes 2c through the corresponding strip-shaped bolt holes 3a11. Therefore, the installation position of the fixed clamping plate 3a can be adjusted adaptively, improving the versatility of the entire device.

[0047] Further, a plurality of reinforcing support plates 3a2 are integrally formed between the fixed clamping plate 3a and the mounting plate 3a1, thereby effectively improving the structural strength of the fixed clamping plate 3a.

[0048] Please refer to Figure 1 and Figure 2 ., the translation control assembly includes a toothed plate 13 fixedly installed on the top of the workpiece positioning table 2 along the length direction of the tool beam 4, a gear 14 and a gear driving device both installed on the workpiece positioning table 2. The gear 14 meshes with the toothed plate 13, and the gear driving device is used to control the rotation of the gear 14. In this embodiment, the gear 14 is a roller structure, ensuring the stability and reliability of the cooperation between the gear 14 and the toothed plate 13, being durable and having high control precision.

[0049] Furthermore, a dust-proof baffle 15 is arranged above the toothed plate 13, and a baffle relief slot 2d adapted to the dust-proof baffle 15 is formed on the workpiece positioning table 2. Through such a design, it is possible to avoid the accumulation of machining debris on the toothed plate 13, ensuring the stability and reliability of operation.

[0050] It should be noted that Figures 1-2 the workpiece positioning mechanism and the finish machining tool assembly in

[0051] Finally, it should be noted that the above description is only the preferred embodiment of the present invention. Under the inspiration of the present invention, those of ordinary skill in the art can make various similar representations without violating the purpose and claims of the present invention, and such transformations all fall within the protection scope of the present invention.

Claims

1. A finishing equipment suitable for deep cavity castings or deep hole castings, comprising an operating table and a workpiece positioning mechanism and a finishing tool assembly both arranged on the operating table, characterized in that: The finishing tool assembly includes a tool beam arranged above the operating table in the horizontal direction, and a tool drive device and a tool beam stabilizing component respectively arranged at both ends of the tool beam, the tool drive device and the tool beam stabilizing component are both installed on the operating table, the workpiece positioning mechanism includes a workpiece positioning platform that can translate along the length direction of the tool beam under the control of the translation control component, and a workpiece positioning component arranged on the top of the workpiece positioning platform, one end of the tool beam is fixedly connected to the tool drive device, and the other end is supported on the tool beam stabilizing component, the tool beam stabilizing component can lock or release the tool beam, the middle part of the tool beam passes through the workpiece positioning component, and at least one machining tool head is detachably mounted on its side wall, and the tool drive device can drive each machining tool head to rotate through the transmission component.

2. The finishing equipment suitable for deep cavity castings or deep hole castings according to claim 1, characterized in that: The tool drive device and the tool beam stabilizing assembly are both fixedly mounted on the operating table.

3. The finishing equipment suitable for deep cavity castings or deep hole castings according to claim 1, characterized in that: The tool drive device can be rotatably mounted on the first mounting seat, and the tool beam stabilizing assembly can be rotatably mounted on the second mounting seat. The first mounting seat and the second mounting seat are both fixedly mounted on the operating table. Two adjusting bolts are relatively installed on both sides of the tool drive device. The first mounting seat is provided with two arc-shaped guide grooves respectively matched with the corresponding adjusting bolts. The two adjusting bolts are respectively locked or released and penetrated through the corresponding arc-shaped guide grooves. The first mounting seat is provided with at least one rotating drive device for driving the tool drive device to rotate along the first mounting seat.

4. The finishing equipment suitable for deep cavity castings or deep hole castings according to claim 2 or 3, characterized in that: The workpiece positioning assembly includes a fixed clamping plate and a movable clamping plate arranged on both sides of the tool beam and at least one first quick clamp arranged on the side of the movable clamping plate away from the fixed clamping plate. The fixed clamping plate and each first quick clamp are fixedly mounted on the top of the workpiece positioning platform. The movable clamping plate can be movably mounted on the workpiece positioning platform and can cooperate with the fixed clamping plate to clamp the workpiece between the two under the force of each first quick clamp.

5. The finishing equipment suitable for deep cavity castings or deep hole castings according to claim 4, characterized in that: The top of the workpiece positioning table is recessed to form a positioning table slide groove, the tool beam passes through the positioning table slide groove, the bottom of the positioning table slide groove is recessed to form a plurality of sliding guide grooves parallel to each other, each sliding guide groove extends from the movable clamping plate to the fixed clamping plate, and the bottom of the movable clamping plate is protruding to form sliding guide ribs that slide in cooperation with each sliding guide groove.

6. The finishing equipment suitable for deep cavity castings or deep hole castings according to claim 5, characterized in that: The bottom of the movable splint has a support plate extending in a direction away from the fixed splint, and the bottom of the support plate is integrally formed with the sliding guide rib. The groove wall of the positioning platform slide groove on one side close to the movable splint is recessed to form a sliding guide slot that matches the support plate, and the support plate is slidably embedded in the sliding guide slot.

7. The finishing equipment suitable for deep cavity castings or deep hole castings according to claim 4, characterized in that: The bottom of the fixed splint has a mounting plate extending away from the movable splint, and the mounting plate is provided with two parallel strip bolt holes, and the extension direction of each strip bolt hole is perpendicular to the length direction of the tool beam, and the top of the workpiece positioning platform is provided with connecting bolt holes corresponding to each strip bolt hole one by one, and two locking bolts are tightened in the corresponding connecting bolt holes through the corresponding strip bolt holes.

8. The finishing equipment suitable for deep cavity castings or deep hole castings according to claim 2 or 3, characterized in that: The tool beam is rotatably mounted with tool head mounting seats corresponding to each processing tool head respectively. Each processing tool head can be detachably mounted on the corresponding tool head mounting seat and rotate synchronously with the corresponding tool head mounting seat. The tool driving device can drive each tool head mounting seat to rotate through a transmission assembly.

9. The finishing equipment suitable for deep cavity castings or deep hole castings according to claim 2 or 3, characterized in that: The tool beam stabilization assembly includes a stabilization assembly base and a fixed clamping block and a second quick clamp both fixedly mounted on the stabilization assembly base. The tool beam is supported on the stabilization assembly base. The fixed clamping block and the second quick clamp are respectively arranged on both sides of the tool beam. The second quick clamp can cooperate with the fixed clamping block to clamp the tool beam between the two.

10. The finishing equipment suitable for deep cavity castings or deep hole castings according to claim 2 or 3, characterized in that: The translation control assembly includes a toothed plate fixedly mounted on the top of the workpiece positioning platform along the length direction of the tool beam, and a gear and a gear driving device both mounted on the workpiece positioning platform. The gear is meshed with the toothed plate, and the gear driving device is used to control the rotation of the gear.

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