Fixture for numerical control lathe

Abstract

The utility model relates to a clamp for a numerical control lathe, which comprises a base plate, a fixing plate is arranged on the front side of the base plate, side plates are arranged on the front side of the fixing plate in a left-right spaced mode, a placing space used for placing an elbow workpiece is formed between the two side plates, and a supporting plate used for supporting the elbow workpiece is further arranged between the side plates. The two side plates are both provided with jacking assemblies used for jacking an elbow workpiece, the upper ends of the two side plates are connected with pressing assemblies used for pressing the elbow workpiece downwards, when the elbow workpiece is clamped, the elbow workpiece is placed on the supporting plate, and then the two sides of the elbow workpiece are jacked through the jacking assemblies on the side plates. And then the elbow workpiece is tightly pressed from top to bottom through the pressing assembly, so that the elbow workpiece is firmly clamped, the inner hole and the end face of the elbow workpiece can be cut, and the clamp is reliable in structure, convenient to clamp, good in universality and suitable for mass production.

Description

Technical Field

[0001] The utility model relates to the technical field of lathe fixtures, and particularly relates to a fixture for a numerical control lathe. Background Art

[0002] In the process of machining production, fixtures are often used for machining operations. Sometimes the workpieces to be machined are not regular, such as elbows. An elbow is a pipe fitting that changes the direction of a pipeline. According to the angle, there are three most commonly used types: 45°, 90°, and 180°. In addition, according to engineering needs, it also includes other non-normal angle elbows such as 60°. For some special application occasions, it is necessary to machine the inner hole and both end faces of the elbow and ensure that the two end faces have a certain perpendicularity. Existing lathes, whether three-jaw chucks or four-jaw chucks, are difficult to clamp, which affects production. Therefore, it is necessary to design a fixture for a numerical control lathe that can clamp elbows. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the problems existing in the related art to a certain extent. For this purpose, the utility model provides a fixture for a numerical control lathe.

[0004] To achieve the above object, the utility model provides the following technical solutions:

[0005] A fixture for a numerical control lathe includes a base plate. An fixing plate is installed on the front side of the base plate. Side plates are spaced left and right on the front side of the fixing plate. A placement space for placing an elbow workpiece is formed between the two side plates. A support plate for supporting the elbow workpiece is also arranged between the side plates. Tightening assemblies for tightly pressing the elbow workpiece are arranged on both side plates. A pressing assembly for pressing the elbow workpiece downward is connected to the upper ends of the two side plates.

[0006] In some embodiments, a limit seat is detachably installed on the support plate, and the lower end of the elbow workpiece is sleeved and restricted on the limit seat.

[0007] In some embodiments, first screws are spaced at the lower end of the limit seat. A transverse groove is penetrated through the support plate, and the first screws pass through the transverse groove and are threadedly connected with first nuts.

[0008] In some embodiments, the pressing assembly includes a hinge seat arranged at the upper end of the side plate. A second screw that swings in the left-right direction is hinged to the hinge seat. It also includes a pressing plate that can press on the upper end of the elbow workpiece. Through holes are spaced left and right on the pressing plate. When the second screw extends vertically upward, the second screw can pass through the through holes and is bolted to a second nut.

[0009] In some embodiments, an arc-shaped pressing block is arranged at the lower end of the pressing plate.

[0010] In some embodiments, the tightening assembly includes a plurality of fixing bolts threadedly connected to the side plate, and a cushion block for tightening against the elbow workpiece is arranged on the threaded end of the fixing bolt.

[0011] In some embodiments, a reinforcing rib plate is connected between the fixing plate and the side plate.

[0012] In some embodiments, a counterweight block is detachably installed on the front side of the base plate and on one side opposite to the fixing plate.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] When clamping the elbow workpiece, place the elbow workpiece on the support plate, then tighten both sides of the elbow workpiece through the tightening assembly on the side plate, and then press the elbow workpiece from above through the pressing assembly, so as to firmly clamp the elbow workpiece, and it can perform cutting processing on the inner hole and end face of the elbow workpiece. The structure is reliable, the clamping is convenient, the versatility is good, and it is suitable for mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional schematic diagram of the present utility model after clamping the elbow workpiece;

[0016] Figure 2 is a front view schematic diagram of the present utility model after clamping the elbow workpiece;

[0017] Figure 3 is a top view schematic diagram of the present utility model after clamping the elbow workpiece;

[0018] Figure 4 is the present utility model Figure 3 A - A cross-sectional schematic diagram. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following specific implementation content provides various different embodiments or examples for implementing the present utility model. Of course, these are only embodiments or examples and are not intended to be restrictive. Additionally, 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 present utility model and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0020] Such as Figures 1 - 4A fixture for a numerically controlled lathe as shown, comprising a base plate 1, the base plate 1 is installed on the lathe flange, a fixed plate 2 is installed on the front side of the base plate 1, side plates 3 are spaced left and right on the front side of the fixed plate 2, a placement space for placing an elbow workpiece 10 is formed between the two side plates 3, a support plate 4 for supporting the elbow workpiece 10 is further arranged between the side plates 3, tightening assemblies for tightly pressing the elbow workpiece 10 are arranged on both side plates 3, and a pressing assembly for pressing the elbow workpiece 10 downward is connected to the upper ends of the two side plates 3.

[0021] When clamping the elbow workpiece 10, place the elbow workpiece 10 on the support plate 4, then use the tightening assemblies on the side plates 3 to tightly press both sides of the elbow workpiece 10, and then use the pressing assembly to press the elbow workpiece 10 downward from above, so as to firmly clamp the elbow workpiece 10, and it can perform cutting processing on the inner hole and end face of the elbow workpiece. The structure is reliable, the clamping is convenient, and the versatility is good, which is suitable for mass production.

[0022] Furthermore, a limit seat 21 is detachably installed on the support plate 4, and the lower end of the elbow workpiece 10 is sleeved and restricted on the limit seat 21. Thus, when installing, directly sleeve the opening at the lower end of the elbow workpiece 10 on the limit seat 21, which can quickly position the elbow workpiece 10 to be processed and improve the installation efficiency.

[0023] Even further, a first screw 31 is spaced at the lower end of the limit seat 21, a transverse groove 32 penetrates through the support plate 4, the first screw 31 passes through the transverse groove 33 and is threadedly connected with a first nut 34, and the first screw 31 is fixed to the lower end of the limit seat 21 by welding. When installing, pass the first screw 31 from top to bottom through the transverse groove 32, and then cooperate the first nut 34 with the first screw 31 to fix the limit seat 21.

[0024] See Figure 1 、 Figure 2 As shown, the tightening assembly includes a plurality of fixing bolts 61 threadedly connected to the side plate 3, a cushion block 62 for tightly pressing on the elbow workpiece 10 is arranged on the threaded end of the fixing bolt 61. When fixing, tighten the fixing bolt 61, and use the gasket 62 at the inner end of the fixing bolt 61 to tightly press on the side wall of the elbow workpiece 10, so as to tightly press the elbow workpiece 10 by the fixing bolts 61 on both sides. The structure is simple and the operation is convenient.

[0025] See Figure 1 、 Figure 2As shown, the pressing assembly includes a hinge seat 41 provided at the upper end of the side plate 3. A second screw 42 that swings in the left-right direction is hinged to the hinge seat 41. It further includes a pressing plate 43 that can press on the upper end of the elbow workpiece 10. Through holes are spaced left and right on the pressing plate 43. When the second screw 42 extends vertically upward, the second screw 42 can pass through the through holes and is bolted to a second nut 45.

[0026] Furthermore, an arc-shaped pressing block 51 is provided at the lower end of the pressing plate 43.

[0027] During the pressing operation, first turn the second screw 42 upwards to the vertical state, then place the pressing plate 43 from top to bottom on the second screw 42, that is, the second screw 42 passes through the through holes on the pressing plate 43. Then, screw the second nut 45 onto the second screw 42, and press the pressing plate 43 downwards through the second nut 45, so as to press the elbow workpiece 10 through the arc-shaped pressing block 51 on the lower side of the pressing block 43.

[0028] In order to improve the connection strength between the fixing plate 2 and the side plate 3, a reinforcing rib plate 71 is connected between the fixing plate 2 and the side plate 3.

[0029] In the present utility model, a counterweight block 81 is detachably installed on the front side of the base plate 1 and on one side opposite to the fixing plate 2, so as to avoid the situation of overweight after the elbow workpiece 10 is installed on the fixture, and improve the stability when the base plate 1 rotates.

[0030] Combined with the drawings and the above display and description, the basic principles, main features and advantages of the present utility model have been described. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A fixture for a numerically controlled lathe, characterized in that: It includes a substrate (1), a fixing plate (2) is installed on the front side of the substrate (1), side plates (3) are spaced left and right on the front side of the fixing plate (2), a placement space for placing an elbow workpiece (10) is formed between the two side plates (3), a support plate (4) for supporting the elbow workpiece (10) is further arranged between the side plates (3), a tightening assembly for tightly pressing the elbow workpiece (10) is arranged on both of the side plates (3), the tightening assembly includes a plurality of fixing bolts (61) threadedly connected to the side plates (3), a cushion block (62) for tightly pressing on the elbow workpiece (10) is arranged on the threaded end of the fixing bolt (61), a pressing assembly for pressing the elbow workpiece (10) downward is connected to the upper ends of the two side plates (3), the pressing assembly includes a hinge seat (41) arranged at the upper end of the side plate (3), a second screw rod (42) swinging in the left-right direction is hinged to the hinge seat (41), a pressing plate (43) capable of pressing on the upper end of the elbow workpiece (10) is further included, through holes are spaced left and right on the pressing plate (43), when the second screw rod (42) extends vertically upward, the second screw rod (42) can pass through the through holes and is bolted to a second nut (45).

2. A fixture for a numerically controlled lathe according to claim 1, characterized in that: A limit seat (21) is detachably installed on the support plate (4), and the lower end of the elbow workpiece (10) is sleeved and restricted on the limit seat (21).

3. The fixture for a CNC lathe according to claim 2, wherein: A first screw rod (31) is spaced at the lower end of the limit seat (21), a transverse groove (32) is penetrated on the support plate (4), and the first screw rod (31) passes through the transverse groove (32) and is threadedly connected to a first nut (34).

4. A fixture for a CNC lathe according to claim 1, characterized in that: An arc-shaped pressing block (51) is arranged at the lower end of the pressing plate (43).

5. A fixture for a CNC lathe according to claim 1, characterized in that: A reinforcing rib plate (71) is connected between the fixing plate (2) and the side plate (3).

6. A fixture for a numerically controlled lathe according to claim 1, characterized in that: A counterweight block (81) is detachably installed on the front side of the substrate (1) and on the side opposite to the fixing plate (2).

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