Main clamp structure for numerical control strip-shaped machining center

Abstract

The utility model discloses a main clamp structure for a numerical control strip-shaped machining center, which relates to the technical field of machining center clamps and comprises a machine body, a fixed plate is fixedly mounted on a machine tool supporting plate, and two sliding plates which are symmetrically distributed are mounted on the machine tool supporting plate in a sliding manner. The two sliding plates and the fixed plate are each provided with two symmetrically-distributed clamping blocks in a sliding mode, the two sliding plates and the fixed plate are each internally provided with a two-way lead screw in a rotating mode, the machine tool supporting plate is provided with a driving assembly, and the machine tool supporting plate is internally provided with an adjusting assembly. The adjusting assembly is used for driving the two sliding plates to slide face to face or back to back to adjust the position, the clamping assemblies are used for clamping and fixing a workpiece, and therefore the universality and the working efficiency of the device are improved, the driving assembly is arranged and used for driving the multiple clamping assemblies to synchronously clamp the workpiece, the working efficiency is improved, and the working efficiency is improved. And the clamping precision and stability are also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machining center fixtures, in particular to a main fixture structure for a numerically controlled strip machining center. Background Art

[0002] The machining center is a typical mechanical processing equipment that integrates high and new technologies. Its development represents the design and manufacturing level of a country. The machining center has strong comprehensive processing capabilities and can complete more processing steps after the workpiece is clamped and positioned once. The machining center is suitable for single-piece processing with complex shapes and high precision requirements, as well as small and medium-sized batch and multi-variety processing. It is also an important symbol for judging the technical capabilities and process level of an enterprise. Today, machining centers have become the mainstream direction of the development of modern machine tools and are widely used in mechanical manufacturing.

[0003] The main clamp is a device used to clamp workpieces on a machining center. The existing main clamp structure for CNC strip machining centers has poor versatility. For different products, different main clamps often need to be replaced, resulting in high labor intensity and low work efficiency. In response to the above problems, the inventor proposed a main clamp structure for a CNC strip machining center to solve the above problems. Utility Model Content

[0004] In order to solve the problems of poor versatility and low working efficiency of the existing main clamp structure for CNC strip machining centers, the purpose of the utility model is to provide a main clamp structure for CNC strip machining centers.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a main clamp structure for a CNC strip machining center, including a machine body, a machine tool pallet fixedly installed on the machine body, a fixed plate fixedly installed on the machine tool pallet, two symmetrically distributed sliding plates slidably installed on the machine tool pallet, two symmetrically distributed clamping blocks slidably installed on the two sliding plates and the fixed plate, two bidirectional screws are rotatably installed in the two sliding plates and the fixed plate, and the bidirectional screw threads are inserted in the corresponding clamping blocks, a driving assembly is installed on the machine tool pallet, and an adjustment assembly is installed in the machine tool pallet.

[0006] Preferably, the drive assembly includes a drive shaft, which is rotatably mounted on the machine tool support plate and is inserted through the fixed plate and the two sliding plates. A first crank is fixedly mounted on one end of the drive shaft, and a first bevel gear is rotatably mounted in one end of the fixed plate and the two sliding plates, and the first bevel gear is slidably clamped on the drive shaft. A second bevel gear is fixedly mounted on one end of each of the three bidirectional screw rods, and the second bevel gear is meshed with the corresponding first bevel gear.

[0007] Preferably, the adjustment assembly includes two mirror-distributed tooth plates, which are slidably installed in the machine tool support plate and fixedly connected to the lower surface of the corresponding sliding plate. A driving gear is rotatably installed in the machine tool support plate, and the driving gear is engaged with the tooth plate.

[0008] Preferably, a worm is rotatably mounted in the machine tool support plate, a second crank is fixedly mounted on one end of the worm, a worm wheel is fixedly mounted on the lower surface of the driving gear, and the worm wheel is meshed with the worm.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] 1. In the present invention, by providing an adjustment component, the position of the two sliding plates can be adjusted according to the length of different bar-shaped workpieces by driving the adjustment component to slide toward or away from each other, so that the sliding plates slide to the two ends of the workpiece, and the clamping component is used to clamp and fix the two ends of the workpiece, thereby improving the versatility and working efficiency of the device;

[0011] 2. In the present invention, a driving assembly is provided to drive multiple clamping assemblies to clamp the workpiece synchronously, which not only improves the work efficiency but also improves the clamping accuracy and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of the sliding plate of the utility model;

[0015] Figure 3 For this utility model Figure 2 A schematic diagram of the structure at center A;

[0016] Figure 4 This is a schematic diagram of the structure of the adjustment component of the utility model.

[0017] In the figure: 1. Machine body; 2. Machine tool support plate; 3. Fixed plate; 4. Sliding plate; 5. Clamping block; 6. Drive assembly; 61. Drive shaft; 62. First crank; 63. First bevel gear; 64. Second bevel gear; 7. Bidirectional screw; 8. Adjustment assembly; 81. Tooth plate; 82. Drive gear; 83. Worm gear; 84. Worm; 85. Second crank. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] Example: Figure 1-4 As shown, the utility model provides a main fixture structure for a CNC strip machining center, including a machine body 1, a machine tool pallet 2 is fixedly installed on the machine body 1, a fixed plate 3 is fixedly installed on the machine tool pallet 2, two symmetrically distributed sliding plates 4 are slidably installed on the machine tool pallet 2, two symmetrically distributed clamping blocks 5 are slidably installed on the two sliding plates 4 and the fixed plate 3, two bidirectional screws 7 are rotatably installed in the two sliding plates 4 and the fixed plate 3, and the bidirectional screws 7 are threadedly inserted in the corresponding clamping blocks 5, and a drive assembly 6 is installed on the machine tool pallet 2. An adjustment component 8 is installed in the machine tool pallet 2. First, the bar workpiece is placed on the fixed plate 3 on the machine tool pallet 2, so that the middle part of the bar workpiece is located on the fixed plate 3. Then, according to the length of the workpiece, the adjustment component 8 is used to drive the two sliding plates 4 to slide toward or away from each other to adjust the position, so that the sliding plates 4 slide to the two ends of the workpiece. Finally, the driving component 6 is used to drive the bidirectional screw rod 7 to rotate, and the bidirectional screw rod 7 drives the corresponding two clamping blocks 5 to slide toward each other, clamping and fixing the middle and both ends of the workpiece, which can improve the stability of the workpiece during processing.

[0020] The driving assembly 6 includes a driving shaft 61 , which is rotatably mounted on the machine tool support plate 2 and is inserted through the fixed plate 3 and the two sliding plates 4 . A first crank 62 is fixedly mounted on one end of the driving shaft 61 .

[0021] By adopting the above technical solution, the first crank 62 is used to drive the drive shaft 61 to rotate.

[0022] A first bevel gear 63 is rotatably mounted in one end of the fixed plate 3 and the two sliding plates 4 , and the first bevel gear 63 is slidably clamped on the driving shaft 61 .

[0023] By adopting the above technical solution, the driving shaft 61 drives the first bevel gear 63 to rotate.

[0024] A second bevel gear 64 is fixedly mounted on one end of each of the three bidirectional screw rods 7 , and the second bevel gear 64 is meshed with the corresponding first bevel gear 63 .

[0025] By adopting the above technical solution, the first bevel gear 63 drives the second bevel gear 64 to rotate, and the second bevel gear 64 drives the bidirectional screw rod 7 to rotate.

[0026] The adjustment assembly 8 includes two mirror-distributed tooth plates 81 , which are slidably mounted in the machine tool support plate 2 , and the tooth plates 81 are fixedly connected to the lower surfaces of the corresponding sliding plates 4 .

[0027] By adopting the above technical solution, the tooth plate 81 drives the sliding plate 4 to slide.

[0028] A driving gear 82 is rotatably mounted in the machine tool support plate 2 , and the driving gear 82 is meshed with the gear plate 81 .

[0029] By adopting the above technical solution, the driving gear 82 drives the tooth plate 81 to slide.

[0030] A worm 84 is rotatably mounted in the machine tool support plate 2 , and a second crank 85 is fixedly mounted on one end of the worm 84 .

[0031] By adopting the above technical solution, the second crank 85 is used to drive the worm 84 to rotate.

[0032] A worm wheel 83 is fixedly mounted on the lower surface of the driving gear 82 , and the worm wheel 83 is meshed with a worm 84 .

[0033] By adopting the above technical solution, the worm 84 drives the worm wheel 83 to rotate, and the worm wheel 83 drives the driving gear 82 to rotate.

[0034] Working principle: When the present invention is in use, the bar-shaped workpiece is first placed on the fixed plate 3 on the machine tool support plate 2, so that the middle part of the bar-shaped workpiece is located on the fixed plate 3, and then, according to the length of the workpiece, the second crank 85 is used to drive the worm 84 to rotate, and the worm 84 drives the worm gear 83 to rotate, and the worm gear 83 drives the driving gear 82 to rotate, and the driving gear 82 drives the two tooth plates 81 to slide synchronously in the opposite directions, and the tooth plates 81 drive the two sliding plates 4 to slide toward or away from each other to adjust their positions, so that the sliding plates 4 slide to the two ends of the workpiece, and then the first crank 62 is used to drive the driving shaft 61 to rotate, and the driving shaft 61 drives the first bevel gear 63 to rotate, and the first bevel gear 63 drives the second bevel gear 64 to rotate, and the second bevel gear 64 drives the bidirectional screw rod 7 to rotate, and the bidirectional screw rod 7 drives the corresponding two clamping blocks 5 to slide toward each other, clamping and fixing the middle part and both ends of the workpiece, which can improve the stability of the workpiece during processing and improve the versatility and work efficiency of the device.

[0035] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A main fixture structure for a CNC strip machining center, comprising a body (1), characterized in that: A machine tool pallet (2) is fixedly mounted on the machine body (1), a fixed plate (3) is fixedly mounted on the machine tool pallet (2), two symmetrically distributed sliding plates (4) are slidably mounted on the machine tool pallet (2), two symmetrically distributed clamping blocks (5) are slidably mounted on the two sliding plates (4) and the fixed plate (3), two bidirectional screw rods (7) are rotatably mounted in the two sliding plates (4) and the fixed plate (3), and the bidirectional screw rods (7) are threadedly inserted in the corresponding clamping blocks (5), a driving assembly (6) is mounted on the machine tool pallet (2), and an adjusting assembly (8) is mounted in the machine tool pallet (2).

2. A main fixture structure for a CNC strip machining center according to claim 1, characterized in that: The driving assembly (6) includes a driving shaft (61), which is rotatably mounted on a machine tool support plate (2) and is inserted through a fixed plate (3) and two sliding plates (4). A first crank (62) is fixedly mounted on one end of the driving shaft (61).

3. A main fixture structure for a CNC strip machining center according to claim 1, characterized in that: A first bevel gear (63) is rotatably mounted in one end of each of the fixed plate (3) and the two sliding plates (4), and the first bevel gear (63) is slidably mounted on the drive shaft (61).

4. A main fixture structure for a CNC strip machining center according to claim 1, characterized in that: A second bevel gear (64) is fixedly mounted on one end of each of the three bidirectional screw rods (7), and the second bevel gear (64) is meshed with the corresponding first bevel gear (63).

5. The main fixture structure for a CNC strip machining center according to claim 1, characterized in that: The adjustment assembly (8) comprises two mirror-distributed tooth plates (81), the two tooth plates (81) being slidably mounted in the machine tool support plate (2), and the tooth plates (81) being fixedly connected to the lower surface of the corresponding sliding plate (4).

6. A main fixture structure for a CNC strip machining center according to claim 1, characterized in that: A driving gear (82) is rotatably mounted in the machine tool support plate (2), and the driving gear (82) is meshed with the toothed plate (81).

7. The main fixture structure for a CNC strip machining center according to claim 1, characterized in that: A worm (84) is rotatably mounted in the machine tool support plate (2), and a second crank (85) is fixedly mounted on one end of the worm (84).

8. The main fixture structure for a CNC strip machining center according to claim 6, characterized in that: A worm wheel (83) is fixedly mounted on the lower surface of the driving gear (82), and the worm wheel (83) is meshed with the worm (84).

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