Clamp for numerical control machine tool machining

Abstract

The utility model relates to a numerical control machine tool machining clamp which comprises a supporting bottom plate, a clamping plate assembly and a power clamping mechanism are arranged on the supporting bottom plate in a left-and-right spaced mode, the clamping plate assembly comprises fixing seats arranged in a front-and-back spaced mode, and sliding clamping plates are arranged on the inner sides of the fixing seats in a front-and-back sliding mode. Swing clamping plates are hinged to the opposite ends of the two sliding clamping plates, a connecting base is arranged between the two swing clamping plates, the opposite ends of the two swing clamping plates are hinged to the connecting base, and the two swing clamping plates can be in a linear state or in a V-shaped state. The device further comprises a first fixing assembly capable of fixing the two swing clamping plates, and the first fixing assembly can fix the two swing clamping plates to be in a linear state or a V-shaped state. The clamp can be flexibly adjusted, is high in universality and wide in application range, does not need to replace different clamps, saves steps, and saves the manufacturing cost of different clamps.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool fixtures, in particular to a fixture for numerical control machine tool processing. Background Art

[0002] A CNC machine tool fixture is a device used to clamp workpieces (and guide tools) on machine tools. Its function is to position the workpiece so that it obtains the correct position relative to the machine tool and tool, and to clamp the workpiece reliably.

[0003] However, the shapes of workpieces processed by machine tools vary, among which cylindrical and rectangular workpieces are more common. The versatility of existing machine tool fixtures is low, and they cannot meet the clamping requirements of cylindrical workpieces while meeting the clamping requirements of rectangular workpieces. Usually, different types of fixtures need to be replaced to adapt to the positioning requirements of cylindrical or rectangular workpieces respectively, which wastes production costs and has poor versatility. Utility Model Content

[0004] The utility model aims to solve one of the problems existing in the existing related technologies at least to a certain extent. To this end, the utility model provides a fixture for CNC machine tool processing.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] 7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein said linking rod and said adjusting base are pivotally connected to each other with a bolt, and said bolt has a round shank to contact with said linking rod. said linking rod is pivotally connected to said linking rod. said linking rod has a round shank to contact with said linking rod.

[0007] In some embodiments, the first fixing assembly includes a U-shaped plate connected to the outside of two fixing seats arranged in the same group, an extension seat is arranged on the outside of the connecting seat, a first bolt is passed through the upper and lower ends of the extension seat, and a first screw hole and a second screw hole are spaced apart on the left and right of the U-shaped plate. When the first bolt cooperates with the first screw hole to fix the extension seat, the two swing clamps are fixed in a straight line state, and when the first bolt cooperates with the second screw hole to fix the extension seat, the two swing clamps are fixed in a V-shaped state.

[0008] In some embodiments, the supporting base plate includes an upper base plate, a lower base plate and a plurality of supporting columns connected therebetween, the clamping plate assembly is disposed on the upper base plate, and the power clamping mechanism is disposed on the lower base plate.

[0009] In some embodiments, a slider is provided at the lower end of the fixed seat, and a slide groove is spaced apart at front and rear on the upper base plate. The slider slides correspondingly in the slide groove, and a connecting moving block is connected between two sliders in the same group. The power clamping mechanism includes a bearing seat spaced apart on the left and right sides of the lower base plate, and a positive and negative screw rod is connected between the two bearing seats. The connecting moving blocks on the left and right sides are correspondingly threadedly connected to the positive and negative screw rods, and a motor is connected to one end of the positive and negative screw rods.

[0010] In some embodiments, a track slider is provided at the lower end of the sliding clamp, a track cooperating with the track slider is provided on the fixed seat, a limit block is provided at the upper end of the sliding clamp, and the limit block is slidably provided on the upper end surface of the fixed seat.

[0011] In some embodiments, a second fixing component capable of fixing the sliding clamp is also provided on the fixing seat.

[0012] In some embodiments, the second fixing assembly includes a second bolt that passes through the upper end of the limit block, and a third screw hole and a fourth screw hole are spaced apart at the front and rear of the upper end of the fixing seat. When the second bolt cooperates with the third screw hole to fix the limit block, the two swing clamps are fixed in a straight line state. When the second bolt cooperates with the fourth screw hole to fix the limit block, the two swing clamps are fixed in a V-shaped state.

[0013] In some embodiments, mounting through holes are provided on both the front and rear sides of the lower base plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] Two swing clamps are hinged between two spaced sliding clamps, so that when a rectangular workpiece needs to be clamped, the two swing clamps can be fixed in a straight line through the first fixing component, so that the inner clamping surfaces of the two swing clamps and the two sliding clamps are on the same plane, thereby facilitating the clamping of the rectangular workpiece; in addition, when a cylindrical workpiece needs to be clamped, the two swing clamps can also be fixed in a V-shaped state through the first fixing component, thereby facilitating the clamping of the cylindrical workpiece, and the clamp can be flexibly adjusted, has high versatility, and a wide range of uses. There is no need to replace different clamps, which saves steps and saves the production cost of different clamps. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the utility model in which two swing splints are in a straight line state;

[0017] Figure 2 It is a top view schematic diagram of the utility model in which two swing clamps are in a straight line state;

[0018] Figure 3 For this utility model Figure 2 A schematic cross-sectional view at AA of FIG.

[0019] Figure 4 It is a three-dimensional schematic diagram of the utility model in which two swing clamps are in a V-shaped state;

[0020] Figure 5 It is a top view schematic diagram of the two swing clamps of the utility model in a V-shaped state;

[0021] Figure 6 It is an exploded schematic diagram of the clamping plate assembly of the utility model. DETAILED DESCRIPTION

[0022] The following specific implementation contents provide a variety of different embodiments or examples for implementing the utility model. Of course, these are only embodiments or examples and are not intended to be limiting. In addition, repeated reference numerals may be used in different embodiments, such as repeated numbers and / or letters. These repetitions are for the purpose of simply and clearly describing the utility model and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0023] like Figure 1-Figure 6 The clamp shown in the figure for CNC machine tool processing includes a supporting base plate 1, on which clamping plate assemblies are spaced apart on the left and right sides of the supporting base plate 1, and a power clamping mechanism for driving the two clamping plate assemblies to clamp each other inwardly or loosen each other outwardly. The clamping plate assembly includes a fixed seat 2 arranged with a front-to-rear interval, and a sliding clamp 3 is sliding forward and backward on the inner side of the fixed seat 2. A swing clamp 4 is hinged at the opposite ends of the two sliding clamps 3, and a connecting seat 5 is provided between the two swing clamps 4. The opposite ends of the two swing clamps 4 are hinged on the connecting seat 5. The two swing clamps 4 can be in a straight line state or a V-shaped state. It also includes a first fixing assembly that can fix the two swing clamps 4, and the first fixing assembly can fix the two swing clamps 4 in a straight line state or a V-shaped state.

[0024] In the utility model, when a rectangular workpiece needs to be clamped, the two swing clamps 4 can be fixed in a straight line by the first fixing assembly, so that the inner clamping surfaces of the two swing clamps 4 and the two sliding clamps 5 are on the same plane (such as Figure 1As shown), it is convenient to clamp a rectangular workpiece; in addition, when a cylindrical workpiece needs to be clamped, the two swing clamps 4 can also be fixed in a V-shape through the first fixing component, so that the cylindrical workpiece can be clamped easily, and the clamp can be flexibly adjusted, with high versatility and a wide range of uses. There is no need to replace different clamps, which saves steps and saves the production cost of different clamps.

[0025] Furthermore, the first fixing assembly includes a U-shaped plate 21 connected to the outer sides of two fixing seats 2 arranged in the same group, an extension seat 22 is arranged on the outer side of the connecting seat 5, and the first bolts 23 are passed through the upper and lower ends of the extension seat 22. The first screw hole 24 and the second screw hole 25 are spaced apart on the left and right sides of the U-shaped plate 21. When the first bolt 23 cooperates with the first screw hole 24 to fix the extension seat 22, the two swing clamps 4 are fixed in a straight line state. When the first bolt 23 cooperates with the second screw hole 25 to fix the extension seat 22, the two swing clamps 4 are fixed in a V-shaped state.

[0026] Furthermore, a track slider 51 is provided at the lower end of the sliding clamp plate 3, and a track 52 corresponding to the track slider 51 is provided on the fixed seat 2, and a limit block 53 is provided at the upper end of the sliding clamp plate 3, and the limit block 53 is slidably provided on the upper end surface of the fixed seat 2, and a second fixing component capable of fixing the sliding clamp plate 3 is also provided on the fixed seat 2, and the second fixing component includes a second bolt 71 passing through the upper end of the limit block 53 up and down, and a third screw hole 72 and a fourth screw hole 73 are spaced apart at the front and back of the upper end of the fixed seat 2, and when the second bolt 71 cooperates with the third screw hole 72 to fix the limit block 53, the two swing clamp plates 4 are fixed in a straight line state, and when the second bolt 71 cooperates with the fourth screw hole 73 to fix the limit block 53, the two swing clamp plates 4 are fixed in a V-shaped state.

[0027] The working principle of the swing clamp 4 when switching from the straight state to the V-shaped state is as follows:

[0028] First, unscrew the first bolt 23 from the first screw hole 24, and unscrew the second bolt 71 from the third screw hole 72. Then, by driving the extension seat 22 to move outward, the connecting seat 5 and the two swing clamps 4 are driven to move outward. Since the other end of the swing clamp 4 is hinged to the sliding clamp 3, the two sliding clamps 3 can be driven to slide relatively inward along the fixed seat 2. At this time, the two swing clamps 3 are in a V-shape. Finally, screw the first bolt 23 into the second screw hole 25, and screw the second bolt 71 into the fourth screw hole 73, so as to fix the extension seat 22, the swing clamp 4 and the sliding clamp 3.

[0029] In the present invention, the support base plate 1 includes an upper base plate 31 , a lower base plate 32 and a plurality of support columns 33 connected therebetween. The clamping plate assembly is disposed on the upper base plate 31 , and the power clamping mechanism is disposed on the lower base plate 32 .

[0030] See also Figure 3 As shown, a slider 41 is provided at the lower end of the fixed seat 2, and a slide groove 42 is spaced apart at the front and rear on the upper base plate 31. The slider 41 slides correspondingly in the slide groove 42, and a connecting moving block 43 is connected between the two sliders 41 in the same group. The power clamping mechanism includes a bearing seat 44 spaced apart on the left and right sides of the lower base plate 32, and a positive and negative threaded rod 45 is connected between the two bearing seats 44. The connecting moving blocks 43 on the left and right sides are correspondingly threadedly connected to the positive and negative threaded rod 45, and a motor 46 is connected to one end of the positive and negative threaded rod 45.

[0031] During operation, the forward and reverse screw rods 45 are driven to rotate by the motor 46. Since the forward and reverse screw rods 45 have a forward thread at one end and a reverse thread at the other end, one of the connecting moving blocks 43 is threadedly engaged with the forward thread, and the other connecting moving block 43 is threadedly engaged with the reverse thread. Therefore, when the forward and reverse screw rods 45 rotate, the two connecting moving blocks 43 can move inward or outward toward each other, thereby driving the two clamping plate assemblies to clamp each other inward or loosen each other outward.

[0032] In the present invention, mounting through holes 81 are provided on both the front and rear sides of the lower base plate 32 , and the lower base plate 32 is fixed in the CNC machine tool equipment by passing bolts through the mounting through holes 81 .

[0033] Combined with the drawings and the above display and description of the basic principles and main features of the utility model and the advantages of the utility model, the technical personnel in the industry should understand that the utility model is not limited to the above embodiments, and the above embodiments and descriptions are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements 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 fixture for CNC machine tool processing, characterized in that: The invention comprises a supporting base plate (1), on which clamping plate assemblies are spaced apart on the left and right sides of the supporting base plate (1), and a power clamping mechanism for driving the two clamping plate assemblies to clamp each other inwardly or loosen each other outwardly, the clamping plate assembly comprises a fixing seat (2) spaced apart in front and back, a sliding clamping plate (3) is slidable forward and backward on the inner side of the fixing seat (2), a swing clamping plate (4) is hinged at opposite ends of the two sliding clamping plates (3), a connecting seat (5) is arranged between the two swing clamping plates (4), opposite ends of the two swing clamping plates (4) are hinged on the connecting seat (5), the two swing clamping plates (4) can be in a straight line state, or the two swing clamping plates (4) can be in a V-shaped state, and a first fixing assembly capable of fixing the two swing clamping plates (4) can fix the two swing clamping plates (4) in a straight line state or in a V-shaped state.

2. A fixture for CNC machine tool processing according to claim 1, characterized in that: The first fixing assembly comprises a U-shaped plate (21) connected to the outside of two fixing seats (2) arranged in the same group, an extension seat (22) is arranged on the outside of the connecting seat (5), a first bolt (23) is passed through the upper and lower ends of the extension seat (22), a first screw hole (24) and a second screw hole (25) are spaced apart on the left and right sides of the U-shaped plate (21), when the first bolt (23) cooperates with the first screw hole (24) to fix the extension seat (22), the two swing clamps (4) are fixed in a straight line state, and when the first bolt (23) cooperates with the second screw hole (25) to fix the extension seat (22), the two swing clamps (4) are fixed in a V-shaped state.

3. The fixture for CNC machine tool processing according to claim 1, characterized in that: The supporting base plate (1) comprises an upper base plate (31), a lower base plate (32) and a plurality of supporting columns (33) connected therebetween; the clamping plate assembly is arranged on the upper base plate (31) and the power clamping mechanism is arranged on the lower base plate (32).

4. A fixture for CNC machine tool processing according to claim 3, characterized in that: A slider (41) is provided at the lower end of the fixed seat (2), and a slide groove (42) is spaced apart at the front and rear of the upper base plate (31). The slider (41) slides in the slide groove (42) correspondingly, and a connecting moving block (43) is connected between two sliders (41) in the same group. The power clamping mechanism includes a bearing seat (44) spaced apart on the left and right sides of the lower base plate (32), and a positive and negative threaded rod (45) is connected between the two bearing seats (44). The connecting moving blocks (43) on the left and right sides are correspondingly threadedly connected to the positive and negative threaded rod (45), and a motor (46) is connected to one end of the positive and negative threaded rod (45).

5. The fixture for CNC machine tool processing according to claim 1, characterized in that: A track slider (51) is arranged at the lower end of the sliding clamp (3), a track (52) corresponding to the track slider (51) is arranged on the fixed seat (2), and a limit block (53) is arranged at the upper end of the sliding clamp (3), and the limit block (53) is slidably arranged on the upper end surface of the fixed seat (2).

6. A fixture for CNC machine tool processing according to claim 5, characterized in that: A second fixing component capable of fixing the sliding clamping plate (3) is also provided on the fixing seat (2).

7. A fixture for CNC machine tool processing according to claim 6, characterized in that: The second fixing assembly comprises a second bolt (71) which passes through the upper end of the limit block (53) from top to bottom, and a third screw hole (72) and a fourth screw hole (73) are spaced apart at the front and rear ends of the upper end of the fixing seat (2). When the second bolt (71) and the third screw hole (72) cooperate to fix the limit block (53), the two swing clamps (4) are fixed in a straight line state; when the second bolt (71) and the fourth screw hole (73) cooperate to fix the limit block (53), the two swing clamps (4) are fixed in a V-shaped state.

8. The fixture for CNC machine tool processing according to claim 3, characterized in that: Mounting through holes (81) are provided on both the front and rear sides of the lower base plate (32).

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