Workpiece pressing mechanism of numerical control lathe for flange machining

Abstract

The utility model relates to flange processing technical field, the utility model discloses an embodiment provides a kind of workpiece pressing mechanism of flange processing numerical control lathe, including numerical control lathe body, the side of numerical control lathe body is provided with control panel, the side of numerical control lathe body slides and has protective plate, the inside of numerical control lathe body is provided with multiple-point pressing mechanism.In the utility model, when needing to process flange, staff opens protective plate, installs flange to the inside of numerical control lathe body, the inner hole of flange is positioned stably by compression spring and positioning block, then starting motor forward rotation, by big gear and pinion, pinion and rack meshing, so that big gear drives pinion rotation, pinion drives rack to move, and then drive pressing arc block to move, the flange after positioning is multiple-point pressed, by the above technical scheme, solve the technical problem that flange multiple-point pressing cannot be carried out in relevant technology.

Description

Technical Field

[0001] The embodiments of this utility model relate to the field of flange processing technology, specifically to a workpiece clamping mechanism for a CNC lathe used for flange processing. Background Technology

[0002] CNC lathes are typically used to machine the outer shape, inner bore, and threads of flanges. Flanges are widely used for sealing pipe connections and equipment interfaces, therefore, high machining precision is required. CNC lathes are highly effective due to their high precision and efficiency.

[0003] According to a public disclosure (CN221455076U), a workpiece clamping mechanism for a CNC lathe used for flange processing includes a clamping structure for clamping flanges on the CNC lathe. The clamping structure includes a mounting base, clamping frames, clamping seats, a connecting plate, a connecting cylinder, moving rods, moving columns, and a retaining ring. Two clamping frames are provided, and the two clamping frames are slidably mounted on the mounting base facing each other. The clamping seats are fixedly connected to each clamping frame, and clamping grooves are provided on the clamping seats. The connecting plate is rotatably mounted on one side of the mounting base via a rotating seat. A connecting column is provided between the connecting cylinder and the connecting plate. Two moving rods are provided, and the two moving rods are slidably mounted on the connecting plate facing each other via an adjusting assembly. The moving column is provided on one side of each moving rod.

[0004] In the aforementioned application, the cooperation between the mounting base and the clamping frame assembly makes it difficult for the clamping frame to perform multi-point clamping on the flange when clamping it. At the same time, the arc of the clamping frame is fixed, which makes it impossible to perform stable clamping on flanges of different sizes. Therefore, we propose a workpiece clamping mechanism for a CNC lathe for flange processing. Utility Model Content

[0005] To overcome the above-mentioned defects, the embodiments of this utility model provide a workpiece clamping mechanism for a CNC lathe for flange processing, which solves the problem of not being able to clamp flanges at multiple points in related technologies.

[0006] According to one aspect, at least one embodiment of the present invention provides a workpiece clamping mechanism for a CNC lathe for flange processing, including a CNC lathe body, a control panel provided on the side of the CNC lathe body, a protective plate slidably provided on the side of the CNC lathe body, and a multi-point clamping mechanism provided inside the CNC lathe body. The multi-point clamping mechanism includes a mounting box, which is fixedly connected to the inner wall of the CNC lathe body. A motor is fixedly connected inside the mounting box, and a rotating shaft is fixedly connected to the output end of the motor. A large gear is fixedly passed through the circumference of the rotating shaft. A mounting plate is fixedly connected inside the mounting box, and a support shaft is rotatably connected to the side of the mounting plate. A small gear is fixedly passed through the circumference of the support shaft. A sliding groove is opened inside the mounting box, and a rack is slidably connected inside the sliding groove. A connecting column is fixedly connected to the side of the rack, and a clamping arc block is fixedly connected to one end of the connecting column.

[0007] For example, in a workpiece clamping mechanism of a CNC lathe for flange processing provided in at least one embodiment of the present invention, a fixed plate is fixedly connected to the circumferential surface of the rotating shaft, a compression spring is fixedly connected to the circumferential surface of the fixed plate, and a positioning block is fixedly connected to the end of the compression spring away from the circumferential surface of the fixed plate. The purpose is to ensure that the compression spring and the positioning block can stably position the flange.

[0008] The circumferential surface of the rotating shaft penetrates and is slidably connected to the side of the mounting box. The side of the mounting box is provided with a moving groove, and the circumferential surface of the connecting column is slidably connected to the inside of the moving groove. The purpose of this is to ensure that the rotating shaft and the connecting column can work normally and stably.

[0009] The circumferential surface of the large gear meshes with the circumferential surface of the small gear, and the circumferential surface of the small gear meshes with the side surface of the rack. The purpose of this is to ensure that the rotation of the large gear can drive the rotation of the small gear, and the rotation of the small gear can drive the rack to move.

[0010] The number of pinions, racks, and clamping arc blocks is set to four, and they are arranged in a circumferential array along the circumference of the mounting plate. The number of compression springs and positioning blocks is set to two, and they are arranged in a circumferential array along the circumferential surface of the fixing plate. The purpose of this arrangement is to improve the stability of the clamping.

[0011] According to another aspect, at least one embodiment of the present invention also provides a workpiece clamping mechanism for a CNC lathe used for flange processing, including a cleaning mechanism. The cleaning mechanism includes a hydraulic cylinder, which is fixedly connected to the inner wall of the CNC lathe body. One end of the hydraulic cylinder is slidably connected to a force rod via a piston, and the other end of the hydraulic cylinder is slidably connected to a hydraulic rod via another piston. A pusher plate is fixedly connected to the end of the hydraulic rod away from the side of the hydraulic cylinder. A collection port is provided inside the CNC lathe body, and a collection box is slidably connected inside the collection port. The purpose is to clean the iron filings after flange processing, prevent accumulation, and avoid affecting normal operation.

[0012] For example, in at least one embodiment of the present invention, a workpiece clamping mechanism for a CNC lathe for flange processing further includes: a control shaft rotatably connected inside the CNC lathe body; a force plate fixedly connected to the circumferential surface of the control shaft; a striking plate fixedly connected to the circumferential surface of the control shaft; and a push rod fixedly connected to the side of the pusher plate. The purpose of this is to ensure that the striking plate can strike the inside of the collection port to prevent iron filings from adhering.

[0013] A return spring is fixedly connected to the side of the hydraulic cylinder. The end of the return spring away from the side of the hydraulic cylinder is fixedly connected to the circumferential surface of the hydraulic rod. The purpose of this is to ensure that the hydraulic rod can automatically reset and reduce manual intervention.

[0014] A torsion spring is fixedly connected inside the CNC lathe body. One end of the torsion spring, away from the inside of the CNC lathe body, is fixedly connected to the circumferential surface of the control axis. The purpose of this is to ensure that the control axis can automatically reset and reduce manual intervention.

[0015] One end of the force-bearing rod is located on the displacement trajectory of the rack, and the side of the force-bearing plate is located on the displacement trajectory of the push rod. The purpose is to ensure that the movement of the rack can push the force-bearing rod, and the movement of the push rod can push the force-bearing plate.

[0016] The beneficial effects of the embodiments of this utility model are as follows: 1. In this utility model, through the cooperation between the motor, mounting plate, and pressing arc block of the multi-point pressing mechanism, when the flange needs to be processed, the operator opens the protective plate and installs the flange into the CNC lathe body. The inner hole of the flange is stably positioned by the compression spring and the positioning block. Then, the motor is started to rotate forward. Through the meshing of the large gear and the small gear, and the small gear and the rack, the large gear drives the small gear to rotate, the small gear drives the rack to move, and then drives the pressing arc block to move, thus pressing the positioned flange at multiple points. This design achieves the effect of pressing the flange at multiple points, avoiding the impact of workpiece loosening or vibration on processing accuracy.

[0017] 2. In this utility model, through the cooperation between the hydraulic cylinder, pusher plate and collection box of the cleaning mechanism, when the motor reverses and the rack resets, it squeezes the force rod, causing the hydraulic rod to extend and drive the pusher plate to move. During the movement of the pusher plate, it pushes the iron chips processed inside the CNC lathe body. The pushed iron chips enter the collection box through the collection port. At the same time, the pusher pushes the force plate, causing the striking plate to rotate and strike the inside of the collection port, generating vibration, so that the iron chips adhering to the inlet fall into the collection box. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0019] Figure 1 This is a structural schematic diagram of the overall three-dimensional orthographic view of the CNC lathe of this utility model; Figure 2 This is a structural schematic diagram of the overall three-dimensional side view of the CNC lathe of this utility model; Figure 3 This is a three-dimensional enlarged structural schematic diagram of the multi-point pressing mechanism of this utility model; Figure 4 This utility model Figure 2 A three-dimensional magnified structural diagram of A in the diagram; Figure 5 This utility model Figure 2 A three-dimensional magnified structural diagram of B.

[0020] In the diagram: 1. CNC lathe body; 2. Control panel; 3. Protective plate; 4. Multi-point clamping mechanism; 41. Mounting box; 42. Motor; 43. Rotary shaft; 44. Large gear; 45. Mounting plate; 46. Support shaft; 47. Small gear; 48. Slide groove; 49. Rack; 410. Connecting column; 411. Clamping arc block; 412. Fixed plate; 413. Compression spring; 414. Positioning block; 415. Moving groove; 5. Cleaning mechanism; 51. Hydraulic cylinder; 52. Force rod; 53. Hydraulic rod; 54. Push plate; 55. Collection port; 56. Collection box; 57. Control shaft; 58. Force plate; 59. Striking plate; 510. Push rod; 511. Return spring; 512. Torsion spring. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0022] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0023] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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 utility model.

[0026] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] like Figures 1-5 As shown, it illustrates a workpiece clamping mechanism of a CNC lathe for flange processing in one embodiment of the present invention, including a CNC lathe body 1, a control panel 2 provided on the side of the CNC lathe body 1, a protective plate 3 sliding on the side of the CNC lathe body 1, and a multi-point clamping mechanism 4 provided inside the CNC lathe body 1. The multi-point clamping mechanism 4 includes a mounting box 41, which is fixedly connected to the inner wall of the CNC lathe body 1. A motor 42 is fixedly connected inside the mounting box 41. A rotating shaft 43 is fixedly connected to the output end of the motor 42. A large gear 44 is fixedly passed through the circumferential surface of the rotating shaft 43. A mounting plate 45 is fixedly connected inside the mounting box 41. A support shaft 46 is rotatably connected to the side of the mounting plate 45. A small gear 47 is fixedly passed through the circumferential surface of the support shaft 46. A sliding groove 48 is opened inside the mounting box 41. A rack 49 is slidably connected inside the sliding groove 48. A connecting column 410 is fixedly connected to the side of the rack 49. A clamping arc block 411 is fixedly connected to one end of the connecting column 410.

[0028] In some examples, the following are also included: a fixed disk 412 is fixedly connected to the circumferential surface of the rotating shaft 43, a compression spring 413 is fixedly connected to the circumferential surface of the fixed disk 412, and a positioning block 414 is fixedly connected to one end of the compression spring 413 away from the circumferential surface of the fixed disk 412. The purpose of this is to ensure that the compression spring 413 and the positioning block 414 can stably position the flange.

[0029] The circumferential surface of the rotating shaft 43 is slidably connected to the side of the mounting box 41. The side of the mounting box 41 is provided with a moving groove 415. The circumferential surface of the connecting column 410 is slidably connected to the inside of the moving groove 415. The purpose is to ensure that the rotating shaft 43 and the connecting column 410 can work normally and stably.

[0030] The circumferential surface of the large gear 44 meshes with the circumferential surface of the small gear 47, and the circumferential surface of the small gear 47 meshes with the side surface of the rack 49. The purpose is to ensure that the rotation of the large gear 44 can drive the rotation of the small gear 47, and the rotation of the small gear 47 can drive the rack 49 to move.

[0031] The number of pinion 47, rack 49 and clamping arc block 411 is set to four and arranged in a circumferential array along the circumferential surface of mounting plate 45. The number of compression spring 413 and positioning block 414 is set to two and arranged in a circumferential array along the circumferential surface of fixing plate 412. The purpose is to improve the stability of clamping.

[0032] For example, such as Figures 1-5As shown, when the flange needs to be processed, the operator opens the protective plate 3 and installs the flange into the CNC lathe body 1. The inner hole of the flange is stably positioned by the compression spring 413 and the positioning block 414. Then, the motor 42 is started to rotate forward. The output end of the motor 42 rotates, which drives the rotating shaft 43 to rotate. The rotating shaft 43 drives the large gear 44 to rotate. Through the meshing of the large gear 44 with the small gear 47 and the small gear 47 with the rack 49, the rotation of the large gear 44 drives multiple small gears to move forward. The motor 47 rotates, and multiple pinions 47 rotate synchronously, driving multiple racks 49 to move inside the slide groove 48. The movement of the racks 49 drives the connecting column 410 to move inside the moving groove 415. The movement of the connecting column 410 drives the pressing arc block 411 to move. During the movement of the pressing arc block 411, it stably presses the positioned flange. Finally, the operator operates the control panel 2 to process the pressed flange. When the processing is completed, the motor 42 reverses, causing the pressing arc block 411 to leave the flange surface and release the flange from pressure.

[0033] like Figures 1-5 As shown, this invention illustrates a workpiece clamping mechanism for a CNC lathe used for flange processing in another embodiment of the present invention. It is largely the same as the technical solution described above, so only the differences are emphasized. This includes a cleaning mechanism 5, which comprises a hydraulic cylinder 51 fixedly connected to the inner wall of the CNC lathe body 1. One end of the hydraulic cylinder 51 is slidably connected to a force-bearing rod 52 via a piston, and the other end of the hydraulic cylinder 51 is slidably connected to a hydraulic rod 53 via another piston. A pusher plate 54 is fixedly connected to the end of the hydraulic rod 53 away from the side of the hydraulic cylinder 51. A collection port 55 is provided inside the CNC lathe body 1, and a collection box 56 is slidably connected inside the collection port 55. The purpose of this mechanism is to clean the iron filings after flange processing, preventing accumulation and ensuring normal operation.

[0034] In some examples, the following are also included: a control shaft 57 is rotatably connected inside the CNC lathe body 1, a force plate 58 is fixedly connected to the circumferential surface of the control shaft 57, a striking plate 59 is fixedly connected to the circumferential surface of the control shaft 57, and a push rod 510 is fixedly connected to the side of the push plate 54. The purpose of this is to ensure that the striking plate 59 can strike the inside of the collection port 55 to prevent iron filings from adhering.

[0035] A return spring 511 is fixedly connected to the side of the hydraulic cylinder 51. The end of the return spring 511 away from the side of the hydraulic cylinder 51 is fixedly connected to the circumferential surface of the hydraulic rod 53. The purpose is to ensure that the hydraulic rod 53 can automatically reset and reduce manual intervention.

[0036] A torsion spring 512 is fixedly connected inside the CNC lathe body 1. One end of the torsion spring 512 away from the inside of the CNC lathe body 1 is fixedly connected to the circumferential surface of the control axis 57. The purpose is to ensure that the control axis 57 can automatically reset and reduce manual intervention.

[0037] One end of the force-bearing rod 52 is located on the displacement trajectory of the rack 49, and the side of the force-bearing plate 58 is located on the displacement trajectory of the push rod 510. The purpose is to ensure that the movement of the rack 49 can push the force-bearing rod 52, and the movement of the push rod 510 can push the force-bearing plate 58.

[0038] For example, such as Figures 1-5 As shown, when the motor 42 reverses and the rack 49 resets, it squeezes the force rod 52, causing the force rod 52 to retract into the hydraulic cylinder 51. At this time, the hydraulic rod 53 extends outward under the pressure of the liquid inside the hydraulic cylinder 51. The extension of the hydraulic rod 53 drives the pusher plate 54 to move. During the movement of the pusher plate 54, it pushes the iron chips processed inside the CNC lathe body 1. The pushed iron chips enter the collection box 56 through the collection port 55. During the movement of the pusher plate 54, it drives the push rod 510 to move. During the movement of the push rod 510, it pushes the force plate 58. The force plate 58 drives the control shaft 57 to rotate. The rotation of the control shaft 57 drives the striking plate 59 to rotate. During the rotation of the striking plate 59, it strikes the inside of the collection port 55, generating vibration, causing the iron chips adhering to the inlet to fall into the collection box 56.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A workpiece clamping mechanism for a CNC lathe used for flange processing, characterized in that, The system includes a CNC lathe body (1), a control panel (2) is provided on the side of the CNC lathe body (1), a protective plate (3) slides on the side of the CNC lathe body (1), and a multi-point clamping mechanism (4) is provided inside the CNC lathe body (1). The multi-point clamping mechanism (4) includes a mounting box (41), which is fixedly connected to the inner wall of the CNC lathe body (1). A motor (42) is fixedly connected inside the mounting box (41). A rotating shaft (43) is fixedly connected to the output end of the motor (42). A large gear (44) is fixedly passed through the circumferential surface of the rotating shaft (43). A mounting plate (45) is fixedly connected inside the mounting box (41). A support shaft (46) is rotatably connected to the side of the mounting plate (45). A small gear (47) is fixedly passed through the circumferential surface of the support shaft (46). A sliding groove (48) is opened inside the mounting box (41). A rack (49) is slidably connected inside the sliding groove (48). A connecting column (410) is fixedly connected to the side of the rack (49). A clamping arc block (411) is fixedly connected to one end of the connecting column (410).

2. The workpiece clamping mechanism for a CNC lathe used for flange processing according to claim 1, characterized in that, A fixed disk (412) is fixedly connected to the circumferential surface of the rotating shaft (43), and a compression spring (413) is fixedly connected to the circumferential surface of the fixed disk (412). A positioning block (414) is fixedly connected to one end of the compression spring (413) away from the circumferential surface of the fixed disk (412).

3. The workpiece clamping mechanism for a CNC lathe used for flange processing according to claim 2, characterized in that, The circumferential surface of the rotating shaft (43) penetrates and is slidably connected to the side of the mounting box (41). The side of the mounting box (41) is provided with a moving groove (415), and the circumferential surface of the connecting column (410) is slidably connected to the inside of the moving groove (415).

4. The workpiece clamping mechanism for a CNC lathe used for flange processing according to claim 3, characterized in that, The circumferential surface of the large gear (44) meshes with the circumferential surface of the small gear (47), and the circumferential surface of the small gear (47) meshes with the side surface of the rack (49).

5. The workpiece clamping mechanism for a CNC lathe used for flange processing according to claim 4, characterized in that, The number of the pinion (47), rack (49) and clamping arc block (411) is set to four and arranged in a circumferential array along the circumferential surface of the mounting plate (45), and the number of the compression spring (413) and positioning block (414) is set to two and arranged in a circumferential array along the circumferential surface of the fixing plate (412).

6. The workpiece clamping mechanism for a CNC lathe used for flange processing according to claim 5, characterized in that, The CNC lathe body (1) is provided with a cleaning mechanism (5). The cleaning mechanism (5) includes a hydraulic cylinder (51). The hydraulic cylinder (51) is fixedly connected to the inner wall of the CNC lathe body (1). One end of the hydraulic cylinder (51) is slidably connected to a force rod (52) through a piston. The other end of the hydraulic cylinder (51) is slidably connected to a hydraulic rod (53) through another piston. One end of the hydraulic rod (53) away from the side of the hydraulic cylinder (51) is fixedly connected to a pusher plate (54). The CNC lathe body (1) is provided with a collection port (55). A collection box (56) is slidably connected inside the collection port (55).

7. The workpiece clamping mechanism for a CNC lathe used for flange processing according to claim 6, characterized in that, The CNC lathe body (1) is internally connected to a control shaft (57), a force plate (58) is fixedly connected to the circumferential surface of the control shaft (57), a striking plate (59) is fixedly connected to the circumferential surface of the control shaft (57), and a push rod (510) is fixedly connected to the side of the push plate (54).

8. The workpiece clamping mechanism for a CNC lathe used for flange processing according to claim 7, characterized in that, A return spring (511) is fixedly connected to the side of the hydraulic cylinder (51), and one end of the return spring (511) away from the side of the hydraulic cylinder (51) is fixedly connected to the circumferential surface of the hydraulic rod (53).

9. The workpiece clamping mechanism for a CNC lathe used for flange processing according to claim 8, characterized in that, A torsion spring (512) is fixedly connected inside the CNC lathe body (1), and one end of the torsion spring (512) away from the inside of the CNC lathe body (1) is fixedly connected to the circumferential surface of the control shaft (57).

10. The workpiece clamping mechanism of a CNC lathe for flange processing according to claim 9, characterized in that, One end of the force-bearing rod (52) is located on the displacement trajectory of the rack (49), and the side of the force-bearing plate (58) is located on the displacement trajectory of the push rod (510).

Images