Clamping frame for numerical control lathe

Abstract

The utility model relates to the technical field of numerical control lathes, in particular to a clamping frame for a numerical control lathe, which comprises a bottom frame, a top frame is fixedly connected to the top end of the bottom frame, adjusting plates are movably mounted at the top ends of two sides of the top frame, and a supporting mechanism is arranged between the middles of the two adjusting plates. The supporting mechanism comprises a second motor, a movable block and a supporting strip; a lifting mechanism is arranged in the middle of the bottom frame and comprises a second lead screw, a sliding base and a push block, and ejector blocks are fixedly installed at the bottom ends of the middles of the two adjusting plates. The second motor, the movable block, the supporting strip, the first lead screw and the adjusting plates are used in cooperation, the second motor drives the first lead screw to rotate after being started, the supporting strip is controlled to transversely move between the two adjusting plates to be matched when the first lead screw rotates, in this way, in the machining process, supporting force exists at the bottom end of a workpiece, and machining precision is improved. Deformation of workpieces can be avoided, supporting points can be adjusted, and flexibility is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of numerically controlled lathes, in particular to a clamping frame for numerically controlled lathes. Background Art

[0002] In CNC lathes, the clamp is a device used to clamp and fix the workpiece. The design and use of the clamp are crucial to maintaining the stability of the workpiece and improving machining accuracy and efficiency. Generally speaking, the clamp for CNC lathes is an important auxiliary tool in the manufacturing process, and its design and use directly affect the quality and efficiency of machining.

[0003] For example, a clamping frame for a CNC lathe disclosed in the authorization announcement number CN216263519U includes a base plate, a mounting plate, a fixed clamping plate, a sliding adjustment clamping plate, a fixed plate, and a screw rod. The upper end of the base plate is provided with a mounting plate, the left side of the mounting plate is provided with a fixed clamping plate, and the mounting plate is provided with a sliding adjustment clamping plate on the other side of the fixed clamping plate. After adopting the above technical solution, the beneficial effect of the utility model is that different steps can be selected according to the thickness of the product to be processed to clamp the product to be processed, which is convenient for fixing workpieces of different thicknesses.

[0004] The above device has a simple structure and reasonable design, can meet the needs of users, and has great promotion value;

[0005] However, the above patent has the following shortcomings:

[0006] Although the clamp for the CNC lathe is convenient for fixing workpieces of different thicknesses, the bottom of the workpiece is suspended in the air after the workpiece is adjusted upward. Therefore, during processing, the workpiece is prone to bending because there is no supporting force at the bottom of the middle part of the workpiece. Utility Model Content

[0007] The purpose of the utility model is to provide a clamping frame for a CNC lathe to solve the problems raised in the above background technology.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A clamping frame for a CNC lathe, comprising

[0010] A bottom frame, the top of the bottom frame is fixedly connected to a top frame, the tops of both sides of the top frame are movably mounted with adjustment plates, a support mechanism is arranged between the middle parts of the two adjustment plates, and the support mechanism includes a second motor, a movable block and a support bar;

[0011] A lifting mechanism is arranged in the middle of the base frame, and the lifting mechanism comprises a second screw rod, a slide seat and a push block. A top block is fixedly mounted at the middle bottom end of the two adjustment plates, and the top block matches the push block.

[0012] Preferably, a movable groove is provided in the middle of one side of the top frame, and a movable block is fixedly connected to the outer middle part of the right side adjustment plate, and the movable block is slidably connected to the movable groove;

[0013] Preferably, a second motor is fixedly installed on the outside of the movable block away from the adjustment plate, a first screw rod is arranged between the middle parts of the two adjustment plates, the output shaft of the second motor is fixedly connected to the first screw rod, and a support bar is movably installed on the outside of the first screw rod;

[0014] Preferably, a plurality of connecting rods are symmetrically arranged on both sides of the two adjustment plates, and rod grooves having the same number as the connecting rods are symmetrically arranged on both sides of the support bar, and the connecting rods are movably sleeved with the rod grooves;

[0015] Preferably, a first motor is fixedly installed on the outside of one side of the base frame close to the second motor, the output shaft of the first motor is fixedly connected to the second screw rod, slide seats are movably installed on the outside of both sides of the second screw rod, the top ends of the two slide seats are fixedly connected to push blocks, the threads at both ends of the second screw rod are opposite, a guide rail is fixedly installed on the top middle part of the base frame, and the bottom end of the slide seat is movably connected to the guide rail through a slider;

[0016] Preferably, the four corners of the bottom end of the top frame are penetrated with through slots, and guide rods are fixedly installed on both sides of the bottom ends of the two adjustment plates. The bottom ends of the guide rods pass through the through slots and are located below the top frame. A spring is provided at the bottom end of the top frame at the through slot, and the bottom end of the spring is fixedly connected to the outer side of the bottom end of the guide rod.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. This clamping frame for a CNC lathe is used in conjunction with a second motor, a movable block, a support bar, a first screw rod and an adjustment plate. After the second motor is started, it drives the first screw rod to rotate. When the first screw rod rotates, the support bar is controlled to move laterally between the two adjustment plates to adapt. In this way, during the processing, there is a supporting force at the bottom end of the workpiece, which can prevent the workpiece from being deformed, and the support point can be adjusted, which is more flexible.

[0019] 2. This clamping frame for a CNC lathe is used in conjunction with a second screw rod, a slide, a push block, a guide rail, a slider and a top block. When the slide moves, it drives the push block to move in the same direction or in the opposite direction. When the push block moves in the same direction, it pushes up the top block. After the top block is pushed up, the two adjusting plates are controlled to lift the workpiece. Conversely, after the top block is lowered, the two adjusting plates are controlled to lower the workpiece synchronously. In this way, the workpiece can be adapted to the top frame according to its thickness. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall main structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the second screw rod of the utility model;

[0022] Figure 3 It is a schematic diagram of the support mechanism of the utility model;

[0023] Figure 4 For the utility model Figure 2 Enlarged schematic diagram at point A in the middle.

[0024] In the figure: 1, bottom frame; 2, top frame; 3, adjustment plate; 4, support mechanism; 401, second motor; 402, movable block; 403, support bar; 5, lifting mechanism; 501, second screw rod; 502, slide seat; 503, push block; 6, top block; 7, movable groove; 8, first screw rod; 9, connecting rod; 10, rod groove; 11, first motor; 12, guide rail; 13, slider; 14, through groove; 15, guide rod; 16, spring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figure 1-4 As shown, a technical solution provided by the utility model:

[0027] A clamping frame for a numerically controlled lathe comprises a base frame 1, a top frame 2 is fixedly connected to the top of the base frame 1, an adjusting plate 3 is movably mounted on the top of both sides of the top frame 2, a supporting mechanism 4 is arranged between the middle parts of the two adjusting plates 3, the supporting mechanism 4 comprises a second motor 401, a movable block 402 and a supporting bar 403; a lifting mechanism 5 is arranged in the middle part of the base frame 1, the lifting mechanism 5 comprises a second screw rod 501, a slide seat 502 and a push block 503, a top block 6 is fixedly mounted on the middle bottom ends of the two adjusting plates 3, The top block 6 matches the push block 503; the first motor 11 is fixedly installed on the outside of the bottom frame 1 near the second motor 401, the output shaft of the first motor 11 is fixedly connected to the second screw rod 501, and the slide seats 502 are movably installed on the outside of both sides of the second screw rod 501, and the top ends of the two slide seats 502 are fixedly connected to the push block 503, and the threads at both ends of the second screw rod 501 are opposite, and the guide rail 12 is fixedly installed on the top of the middle part of the bottom frame 1, and the bottom end of the slide seat 502 is movably connected to the guide rail 12 through the slider 13;

[0028] In this embodiment, the workpiece is placed on the top of the two adjustment plates 3, and then the first motor 11 is started. After the first motor 11 is started, it drives the second screw rod 501 to rotate. After the second screw rod 501 rotates, it drives the two slides 502 to move in the same direction or opposite directions. When the slide 502 moves, it drives the push block 503 to move in the same direction or opposite directions. When the push block 503 moves in the same direction, it pushes the top block 6. After the top block 6 is pushed up, the two adjustment plates 3 are controlled to lift the workpiece. Conversely, after the top block 6 is lowered, the two adjustment plates 3 are controlled to lower the workpiece synchronously. In this way, the workpiece can be adapted to the top frame 2 according to its thickness.

[0029] like Figure 1 and Figure 2 As shown, a movable groove 7 is opened in the middle of one side of the top frame 2, a movable block 402 is fixedly connected to the outer side of the middle of the right adjustment plate 3, the movable block 402 is slidably connected to the movable groove 7, a second motor 401 is fixedly installed on the outer side of the movable block 402 away from the adjustment plate 3, a first screw rod 8 is arranged between the middle parts of the two adjustment plates 3, the output shaft of the second motor 401 is fixedly connected to the first screw rod 8, and a support bar 403 is movably installed on the outer side of the first screw rod 8;

[0030] In this embodiment, when processing a workpiece, the position of the support bar 403 can be adjusted according to the position of the workpiece to be processed. During adjustment, the second motor 401 is started. After the second motor 401 is started, it drives the first screw rod 8 to rotate. When the first screw rod 8 rotates, the support bar 403 is controlled to move laterally between the two adjustment plates 3 to adapt. In this way, during the processing, there is a supporting force at the bottom end of the workpiece, which can prevent the workpiece from being deformed, and the support point can be adjusted, which is more flexible.

[0031] like Figure 3 As shown, a plurality of connecting rods 9 are symmetrically arranged on both sides of the two adjustment plates 3, and rod grooves 10 having the same number as the connecting rods 9 are symmetrically arranged on both sides of the support bar 403, and the connecting rods 9 are movably sleeved with the rod grooves 10;

[0032] In this embodiment, when the support bar 403 moves laterally between the two adjustment plates 3, the rod grooves 10 at both ends of the support bar 403 will slide synchronously along the axial direction of the connecting rod 9, so as to guide the support bar 403 while preventing the workpiece from being supported.

[0033] like Figure 1 and Figure 2 As shown, through slots 14 are penetrated at the four corners of the bottom end of the top frame 2, and guide rods 15 are fixedly installed on both sides of the bottom ends of the two adjustment plates 3. The bottom ends of the guide rods 15 pass through the through slots 14 and are located below the top frame 2. A spring 16 is provided at the bottom end of the top frame 2 located at the through slots 14, and the bottom end of the spring 16 is fixedly connected to the outer side of the bottom end of the guide rod 15;

[0034] In this embodiment, when the first motor 11 controls the adjustment plate 3 to descend, the spring 16 will simultaneously pull the guide rod 15 downward, so that the adjustment plate 3 can descend quickly.

[0035] Working principle: during operation, the workpiece is placed on the top of the two adjusting plates 3, and then the first motor 11 is started. After the first motor 11 is started, it drives the second screw rod 501 to rotate. After the second screw rod 501 rotates, it drives the two slides 502 to move in the same direction or opposite directions. When the slide 502 moves, it drives the push block 503 to move in the same direction or opposite directions. When the push block 503 moves in the same direction, it pushes the top block 6. After the top block 6 is pushed, the two adjusting plates 3 are controlled to lift the workpiece. Conversely, after the top block 6 is lowered, the two adjusting plates 3 are controlled to lower the workpiece synchronously. In this way, it can be adapted to the top frame 2 according to the thickness of the workpiece; when processing the workpiece, the position of the support bar 403 can be adjusted according to the position of the workpiece to be processed. During adjustment, the second motor 401 is started. After the second motor 401 is started, it drives the first screw rod 8 to rotate. When the first screw rod 8 rotates, the support bar 403 is controlled to move horizontally between the two adjusting plates 3 to adapt. In this way, during the processing, there is a supporting force at the bottom end of the workpiece, which can avoid deformation of the workpiece, and the supporting point can be adjusted, which is more flexible.

[0036] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A clamping frame for a CNC lathe, characterized in that: include A bottom frame (1), the top of the bottom frame (1) is fixedly connected to a top frame (2), the tops of both sides of the top frame (2) are movably mounted with adjustment plates (3), a support mechanism (4) is arranged between the middle parts of the two adjustment plates (3), and the support mechanism (4) comprises a second motor (401), a movable block (402) and a support bar (403); A lifting mechanism (5) is arranged in the middle of the base frame (1), and the lifting mechanism (5) comprises a second screw rod (501), a slide seat (502) and a push block (503). A top block (6) is fixedly mounted at the middle bottom end of the two adjustment plates (3), and the top block (6) matches the push block (503).

2. The clamping frame for a CNC lathe according to claim 1, characterized in that: A movable groove (7) is provided in the middle of one side of the top frame (2), and a movable block (402) is fixedly connected to the outer middle part of the right adjustment plate (3), and the movable block (402) is slidably connected to the movable groove (7).

3. The clamping frame for a CNC lathe according to claim 2, characterized in that: A second motor (401) is fixedly mounted on the outside of the movable block (402) on a side away from the adjustment plate (3); a first screw rod (8) is arranged between the middle parts of the two adjustment plates (3); an output shaft of the second motor (401) is fixedly connected to the first screw rod (8); and a support bar (403) is movably mounted on the outside of the first screw rod (8).

4. The clamping frame for a CNC lathe according to claim 3, characterized in that: A plurality of connecting rods (9) are symmetrically arranged on both sides of the two adjustment plates (3), and rod grooves (10) having the same number as the connecting rods (9) are symmetrically arranged on both sides of the support bar (403), and the connecting rods (9) are movably sleeved with the rod grooves (10).

5. The clamping frame for a CNC lathe according to claim 3, characterized in that: A first motor (11) is fixedly mounted on the outside of one side of the base frame (1) close to the second motor (401); an output shaft of the first motor (11) is fixedly connected to a second screw rod (501); slide seats (502) are movably mounted on the outside of both sides of the second screw rod (501); the top ends of the two slide seats (502) are fixedly connected to push blocks (503); the threads at both ends of the second screw rod (501) are opposite; a guide rail (12) is fixedly mounted on the top middle portion of the base frame (1); and the bottom end of the slide seat (502) is movably connected to the guide rail (12) via a slider (13).

6. The clamping frame for a CNC lathe according to claim 1, characterized in that: The four corners of the bottom end of the top frame (2) are penetrated with through slots (14), and guide rods (15) are fixedly installed on both sides of the bottom ends of the two adjustment plates (3). The bottom ends of the guide rods (15) pass through the through slots (14) and are located below the top frame (2). The top frame (2) is provided with a spring (16) at the bottom end of the through slot (14), and the bottom end of the spring (16) is fixedly connected to the outer side of the bottom end of the guide rod (15).

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