Fixture for numerical control lathe

Abstract

The utility model provides a clamp for a numerical control lathe, which relates to the field of lathe clamps and comprises a power unit, an extension unit is arranged on one side of the power unit, a limiting unit is arranged on the surface of the extension unit, a clamping unit is arranged on the surface of the limiting unit, and the limiting unit comprises a fixing block. One side of the fixing block is fixedly connected with a supporting sleeve; the power unit is arranged to provide power for the displacement of the extension rod and support the clamping unit, the extension rod can extend to the inner cavity of the extension groove through the displacement of the extension rod, the four expansion blocks are separated and expanded, at the moment, a cylindrical machining part can be conveniently inserted, and the clamping unit is arranged to move on the surfaces of the expansion blocks, so that the machining efficiency is improved. And pressure is applied to the expansion blocks along with movement, so that a part located in an inner cavity of the inserting groove is extruded and limited by the four expansion blocks from the periphery to be clamped, and the effect of well clamping the cylindrical part is achieved.

Description

Technical Field

[0001] The utility model belongs to the field of lathe clamps, in particular to a clamp for a numerically controlled lathe. Background Art

[0002] A CNC lathe is a device that can process parts according to set programming. It can usually perform operations such as drilling and grooving on the parts produced. Important steps include clamping and fixing the parts;

[0003] According to Chinese patent application No.: 202222671257.1, a clamp for a CNC lathe is disclosed, including a base, a locking assembly is installed on the upper surface of one end of the base, and the locking assembly includes a mounting plate fixedly installed on the upper surface of one end of the base by bolts, the outer wall of the mounting plate is fixedly connected to a fixing plate, the fixing plate is provided with a slide groove inside, and the number of the slide grooves is two. A clamp for a CNC lathe provided in the comparative example is additionally provided with a locking assembly, and after the workpiece is stably clamped by the clamping block, the cylinder is started to drive the piston rod to move upward, drive the movable plate to pull the connecting plate upward to move upward, so that the connecting plate can drive the two locking rods to slide upward, and at the same time, the two locking rods are blocked by the baffle plate so that one end of the two locking rods is rotated to tilt the two locking rods so that the locking teeth and the ratchet are stuck, so that the clamp can have a locking function, avoid the loosening of the clamp, and make the clamp clamping more stable;

[0004] The workpiece can be clamped as the clamping block moves. However, for cylindrical parts with smaller volumes, it is inconvenient to limit the cylindrical parts around only by moving the clamping blocks on both sides, and thus it is inconvenient to clamp and fix the parts well.

[0005] In summary, the utility model provides a clamp for a CNC lathe to solve the above problems. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] A clamp for a CNC lathe comprises a power unit, an extension unit is arranged on one side of the power unit, a limiting unit is arranged on the surface of the extension unit, a clamping unit is arranged on the surface of the limiting unit, the limiting unit comprises a fixed block, a support sleeve is fixedly connected to one side of the fixed block, expansion blocks are fixedly connected on all sides of the other side of the fixed block, four expansion blocks are movably connected to each other, extension grooves and slots are respectively provided on both sides of an inner cavity of the expansion block, the extension unit comprises an extension rod, one end of the extension rod extends to the inner cavity of the extension groove and is movably connected to the inner wall of the extension groove.

[0008] Furthermore, in the utility model, the power unit includes a mounting frame, a support plate is fixedly connected to one side of the inner cavity of the mounting frame, and a motor is fixedly connected to the lower end of one side of the support plate.

[0009] Furthermore, in the utility model, the extension unit also includes a support rod, which is fixedly connected to one side of the support plate, and one end of the support rod is movably connected to a threaded sleeve. One end of the extension rod close to the mounting frame extends to the inner cavity of the threaded sleeve and is threadedly connected to the inner cavity of the threaded sleeve.

[0010] Furthermore, in the utility model, the power unit also includes gears, the number of which is two, the two gears are respectively fixedly connected to one side of the threaded sleeve and the output shaft of the motor, the upper end of the gear sleeve is arranged on the surface of the support rod, and the two gears are meshed.

[0011] Furthermore, in the utility model, the clamping unit includes a ring, which is sleeved on the surface of the expansion block and movably connected to the surface of the expansion block, both ends of one side of the support plate are fixedly connected to a cylinder, the output end of the cylinder passes through the mounting frame and is fixedly connected to one side of the ring, one side of the support sleeve is fixedly connected to an insertion rod, one end of the insertion rod passes through the ring and is movably connected to the inner cavity of the ring.

[0012] Furthermore, in the utility model, the extension unit also includes a slide groove, which is opened on the top of the installation frame, and the inner cavity of the slide groove is movably connected to a slider, and one end of the slider is fixedly connected to one side of the extension rod.

[0013] Beneficial effects: The utility model has the following beneficial effects:

[0014] The utility model provides power for the displacement of the extension rod and supports the clamping unit by setting a power unit. The extension rod can be extended to the inner cavity of the extension slot through displacement, and the four expansion blocks can be separated and expanded. At this time, the cylindrical processing parts can be conveniently inserted. By setting the clamping unit, it can move on the surface of the expansion block and apply pressure to the expansion block as it moves, so that the parts located in the inner cavity of the slot are clamped by the four expansion blocks from the extrusion limit on all sides, so as to achieve the effect of better clamping of the cylindrical parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the support plate of the utility model;

[0017] Figure 3 It is a schematic cross-sectional structure diagram of the extension groove of the utility model;

[0018] Figure 4 This utility model Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0019] In the figure:

[0020] 1. Power unit; 11. Mounting frame; 12. Support plate; 13. Motor; 14. Gear; 2. Extension unit; 21. Support rod; 22. Threaded sleeve; 23. Extension rod; 24. Slide groove; 25. Slider; 3. Limit unit; 31. Fixed block; 32. Expansion block; 33. Extension groove; 34. Slot; 35. Support sleeve; 4. Clamping unit; 41. Ring; 42. Cylinder; 43. Insert rod. DETAILED DESCRIPTION

[0021] In order to better understand the technical content of the utility model, specific embodiments are cited and described as follows in conjunction with the accompanying drawings. In this disclosure, various aspects of the utility model are described with reference to the accompanying drawings, and many illustrative embodiments are shown in the accompanying drawings. The embodiments of the present disclosure are not necessarily defined to include all aspects of the utility model. It should be understood that the various concepts and embodiments introduced above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in the utility model are not limited to any implementation method. In addition, some aspects disclosed in the utility model can be used alone, or used in any appropriate combination with other aspects disclosed in the utility model.

[0022] Example 1

[0023] like Figure 1-4 As shown, it is the first embodiment of the utility model, which provides a clamp for a CNC lathe, including a power unit 1, an extension unit 2 is arranged on one side of the power unit 1, a limit unit 3 is arranged on the surface of the extension unit 2, a clamping unit 4 is arranged on the surface of the limit unit 3, the limit unit 3 includes a fixed block 31, a support sleeve 35 is fixedly connected to one side of the fixed block 31, and expansion blocks 32 are fixedly connected to the other side of the fixed block 31. The four expansion blocks 32 are movably connected to each other, and extension grooves 33 and slots 34 are respectively provided on both sides of the inner cavity of the expansion block 32. The extension unit 2 includes an extension rod 23, one end of the extension rod 23 extends to the inner cavity of the extension groove 33, and is movably connected to the inner wall of the extension groove 33.

[0024] like Figure 1-3As shown, the power unit 1 can limit the displacement of the extension rod 23 and provide power, and as the extension rod 23 is displaced in the inner cavity of the extension groove 33, one end of the expansion block 32 will be deformed and the slot 34 will be expanded, thereby facilitating the insertion of the part to be processed. The deformation of the expansion block 32 can be used to clamp the part through the clamping unit 4, so that the cylindrical part surface can be better clamped and fixed all around.

[0025] Example 2

[0026] Reference Figure 3-4 , which is the second embodiment of the utility model, and this embodiment is based on the previous embodiment.

[0027] In this embodiment, the extension unit 2 also includes a support rod 21, which is fixedly connected to one side of the support plate 12. One end of the support rod 21 is movably connected to a threaded sleeve 22. The end of the extension rod 23 close to the mounting frame 11 extends to the inner cavity of the threaded sleeve 22 and is threadedly connected to the inner cavity of the threaded sleeve 22.

[0028] The extension unit 2 further includes a slide groove 24 , which is opened at the top of the installation frame 11 . A slider 25 is movably connected to the inner cavity of the slide groove 24 , and one end of the slider 25 is fixedly connected to one side of the extension rod 23 .

[0029] like Figure 3-4 As shown, the threaded sleeve 22 rotates with the support of the support rod 21 under the cooperation of the gear 14, thereby pushing the extension rod 23 and the slider 25 to move along the inner cavity of the slide groove 24, providing power for the extension of the extension rod 23.

[0030] Example 3

[0031] Reference Figure 1-2 , which is the third embodiment of the utility model, and this embodiment is based on the previous two embodiments.

[0032] In this embodiment, the power unit 1 also includes two gears 14 , which are fixedly connected to one side of the threaded sleeve 22 and the output shaft of the motor 13 , respectively. The upper gear 14 is sleeved on the surface of the support rod 21 , and the two gears 14 are meshed with each other.

[0033] The power unit 1 comprises a mounting frame 11 , a support plate 12 is fixedly connected to one side of the inner cavity of the mounting frame 11 , and a motor 13 is fixedly connected to the lower end of one side of the support plate 12 .

[0034] The clamping unit 4 includes a ring 41, which is sleeved on the surface of the expansion block 32 and movably connected to the surface of the expansion block 32. Both ends of one side of the support plate 12 are fixedly connected to a cylinder 42. The output end of the cylinder 42 passes through the mounting frame 11 and is fixedly connected to one side of the ring 41. One side of the support sleeve 35 is fixedly connected to an insertion rod 43. One end of the insertion rod 43 passes through the ring 41 and is movably connected to the inner cavity of the ring 41.

[0035] like Figure 1-2 As shown, the support plate 12 supports the gear 14, the support rod 21 and the cylinder 42, and the motor 13 provides a power basis for the rotation of the gear 14 and the threaded sleeve 22. The start of the cylinder 42 can push the ring 41 to move along the surface of the insertion rod 43 and the surface of the expansion block 32, and squeeze the deformed and expanded expansion block 32, so as to clamp the parts in the inner cavity of the slot 34.

[0036] When in use, first start the motor 13 through the external controller, the output shaft of the motor 13 drives the lower end gear 14 to rotate, and drives the upper end gear 14 and the threaded sleeve 22 to rotate, the rotation of the threaded sleeve 22 drives the extension rod 23 and the slider 25 to move along the inner cavity of the slide groove 24, and pass through the fixed block 31 to extend to the inner cavity of the extension groove 33, and as the inner cavity space of the extension groove 33 shrinks, the four expansion blocks 32 are pushed away from the fixed block 31. The end of the expansion block 32 is deformed and the slot 34 is expanded. At this time, the cylindrical part can be inserted into the slot 34. After completion, the cylinder 42 is started by the external controller. The output end of the cylinder 42 pushes the ring 41 to move along the insertion rod 43 and the surface of the expansion block 32, and squeezes the deformed expansion block 32, so that the four expansion blocks 32 are squeezed toward the part in the slot 34, thereby completing the clamping and fixing of the part, and cooperating with the external processing device to perform processing operations. After the processing is completed, the above steps can be performed to remove the part.

[0037] The standard parts used in this application document can all be purchased from the market and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented through simple programming by technicians in this field, which is common knowledge in the field. This application is mainly used to protect mechanical devices, so this application no longer explains the control method and circuit connection in detail.

[0038] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. A person with ordinary knowledge in the technical field to which the present invention belongs may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the definition of the claims.

Claims

1. A fixture for a CNC lathe, comprising a power unit (1), characterized in that: An extension unit (2) is provided on one side of the power unit (1), a limiting unit (3) is provided on the surface of the extension unit (2), a clamping unit (4) is provided on the surface of the limiting unit (3), the limiting unit (3) comprises a fixed block (31), one side of the fixed block (31) is fixedly connected to a support sleeve (35), the other side of the fixed block (31) is fixedly connected to expansion blocks (32) on all sides, the four expansion blocks (32) are movably connected to each other, an extension groove (33) and a slot (34) are respectively provided on both sides of the inner cavity of the expansion block (32), and the extension unit (2) comprises an extension rod (23), one end of the extension rod (23) extends to the inner cavity of the extension groove (33) and is movably connected to the inner wall of the extension groove (33).

2. The fixture for a CNC lathe according to claim 1, characterized in that: The power unit (1) comprises a mounting frame (11), one side of the inner cavity of the mounting frame (11) is fixedly connected to a support plate (12), and the lower end of one side of the support plate (12) is fixedly connected to a motor (13).

3. The fixture for a CNC lathe as claimed in claim 2, characterized in that: The extension unit (2) further comprises a support rod (21), wherein the support rod (21) is fixedly connected to one side of the support plate (12), one end of the support rod (21) is movably connected to a threaded sleeve (22), and one end of the extension rod (23) close to the installation frame (11) extends to the inner cavity of the threaded sleeve (22) and is threadedly connected to the inner cavity of the threaded sleeve (22).

4. The fixture for a CNC lathe as claimed in claim 3, characterized in that: The power unit (1) further comprises a gear (14), wherein the number of the gears (14) is two, and the two gears (14) are respectively fixedly connected to one side of the threaded sleeve (22) and the output shaft of the motor (13), and the upper end of the gear (14) is sleeved on the surface of the support rod (21), and the two gears (14) are meshed with each other.

5. The fixture for a CNC lathe as claimed in claim 2, characterized in that: The clamping unit (4) comprises a collar (41), the collar (41) being sleeved on the surface of the expansion block (32) and being movably connected to the surface of the expansion block (32); both ends of one side of the support plate (12) are fixedly connected to a cylinder (42); the output end of the cylinder (42) passes through the mounting frame (11) and is fixedly connected to one side of the collar (41); one side of the support sleeve (35) is fixedly connected to an insertion rod (43), one end of the insertion rod (43) passes through the collar (41) and is movably connected to the inner cavity of the collar (41).

6. The fixture for a CNC lathe as claimed in claim 2, characterized in that: The extension unit (2) further comprises a slide groove (24), wherein the slide groove (24) is provided at the top of the installation frame (11), the inner cavity of the slide groove (24) is movably connected to a slider (25), and one end of the slider (25) is fixedly connected to one side of the extension rod (23).

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