Aluminum strip rapid clamping mechanism for CNC machining

Abstract

The utility model relates to the technical field of CNC (computer numerical control) machining, in particular to a quick aluminum strip clamping mechanism for CNC machining, which comprises a machining base, a connecting plate and a plurality of groups of positioning components, the connecting plate is arranged at the upper end of a machining table, and each positioning component comprises an upper end positioning column, a side end positioning column and a pushing clamp. The upper end positioning columns are arranged at intervals and inserted into the connecting plate, the side end positioning columns are arranged at the lower ends of the upper end positioning columns at intervals and inserted into the connecting plate, grooves located below the upper end positioning columns are formed in the connecting plate at intervals, the pushing clamps are arranged in the grooves, and each pushing clamp comprises a fixed block, a movable block, a pushing block and a spring. The fixed block is fixed in the groove, the movable block is arranged between the fixed block and the pushing block in a sliding fit mode through a wedge-shaped inclined face, the movable block is connected with the bottom of the groove through a bolt, and the spring is located between the groove and the pushing block, so that machining original points are consistent during machining every time, and machining time and production cost are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of CNC processing, and particularly relates to a quick clamping mechanism for aluminum bars used in CNC processing. Background Art

[0002] CNC (Computerized Numerical Control) processing is computer digital control precision machining. It controls the Cartesian position coordinates of the machining tool of the CNC machine tool through the CNC processing language, and controls the feed speed and spindle speed of the tool to process the workpiece.

[0003] In the past, CNC processed aluminum bars were fixed with a pressure plate. Since the pressure plate had no reference for fixing the aluminum bars, the CNC processing origin had to be redefined after each clamping, resulting in a long processing time. In addition, the position pressed by the pressure plate could not be processed, resulting in the problem of incomplete processing of some parts.

[0004] Therefore, in order to solve the deficiencies in the prior art, a quick clamping mechanism for aluminum bars used in CNC machining with a simple structure needs to be designed. Utility Model Content

[0005] The utility model provides a quick clamping mechanism for aluminum bars used in CNC processing to solve the problems of the prior art. The purpose of the utility model can be achieved through the following technical solutions: A quick clamping mechanism for aluminum bars used in CNC processing comprises: a processing base, a connecting plate and a plurality of positioning components, the connecting plate is arranged at the upper end of the processing platform, the positioning components include an upper positioning column, a side positioning column and a pushing clamp, the upper positioning column is arranged at intervals and plugged into the connecting plate, the side positioning column is arranged at intervals at the lower end of the upper positioning column and plugged into the connecting plate, the connecting plate is provided with grooves below the upper positioning column at intervals, the pushing clamp is arranged in the groove, the pushing clamp comprises a fixed block, a moving block, a pushing block and a spring, the fixed block is fixed in the groove, the moving block is arranged between the fixed block and the pushing block by sliding fit through a wedge-shaped inclined surface, the moving block is connected to the bottom of the groove by bolts, and the spring is located between the groove and the pushing block.

[0006] As a further improvement, T-shaped slide grooves are provided inside the fixed block and the movable block, and the T-shaped slide grooves are inclined in a vertical downward direction close to the center of the movable block.

[0007] As a further improvement, the connecting plate is provided with a first jack group, a second jack group and a third jack group in sequence and at intervals downward, the upper end positioning column is inserted into the first jack group, the side end positioning column is inserted into the second jack group, the third jack group is located between the first jack group and the second jack group, and the second row of positioning columns is inserted in the third jack group.

[0008] As a further improvement, the connecting plate is fixedly connected to the processing base by bolts.

[0009] Compared with the prior art, the utility model has the following beneficial effects of the quick clamping mechanism for aluminum bars used in CNC machining:

[0010] The upper positioning column and the side positioning column at the designated position are plugged into the connecting plate, and the restrictions in three directions are realized by the upper positioning column and the side positioning column. The movable block is controlled to move downward by turning the bolt. Since the movable block is arranged between the fixed block and the clamping block through the sliding fit of the wedge-shaped inclined surface, the movable block moves downward to push the clamping block to move close to the workpiece in the groove, and then pushes the workpiece tightly. The operation is convenient. Each time the workpiece aluminum bar is processed, it is made to lean against the positioning columns at different positions and is clamped by the clamping clamp. The processing origin can be consistent each time the processing is performed, and the processing surface of the top surface of the aluminum bar is unobstructed, which saves a lot of time for re-aligning the processing origin, greatly saving processing time and production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of the utility model

[0012] Figure 2 This is a schematic diagram of the structure of the push-tightening clamp in the utility model.

[0013] Figure 3 This is a structural diagram of the local structure of the push-tightening clamp in the utility model.

[0014] Figure 4 for Figure 1 Structural diagram of a local enlarged view

[0015] Figure 5 A schematic diagram of the structure of the prior art

[0016] In the figure, 1-processing base, 2-connecting plate, 21-groove, 22-first socket group, 23-second socket group, 24-third socket group, 3-positioning assembly, 31-upper end positioning column, 32-side end positioning column, 33-pushing clamp, 34-fixed block, 35-moving block, 36-pushing block, 37-spring, 38-bolt, 39-T-shaped slide groove, 4-second row of positioning columns, 5-workpiece. DETAILED DESCRIPTION

[0017] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0018] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] The following is combined with the embodiments and attached Figures 1 to 5 , the technical solution of the utility model is further elaborated.

[0020] Example 1

[0021] A quick clamping mechanism for aluminum bars for CNC machining, comprising: a machining base 1, a connecting plate 2 and a plurality of positioning components 3, the connecting plate 2 being arranged at the upper end of the adding platform 1, the positioning component 3 comprising an upper positioning column 31, a side positioning column 32 and a pushing clamp 33, the upper positioning columns 31 being arranged at intervals and plugged into the connecting plate 2, the side positioning columns 32 being arranged at intervals at the lower ends of the upper positioning columns 31 and plugged into the connecting plate 2, the connecting plate 2 being provided with grooves 21 located below the upper positioning columns 31 at intervals, the pushing clamp 33 being arranged in the groove 21, the pushing clamp 33 comprising a fixed block 34, a moving block 35, a pushing block 36 and a spring 37, the fixed block 34 being fixed in the groove 21, the moving block 35 being arranged between the fixed block 34 and the pushing block 36 by sliding fit with a wedge-shaped inclined surface, the moving block 35 being connected to the bottom of the groove 21 by a bolt 38, and the spring 37 being located between the groove 21 and the pushing block 36.

[0022] like Figure 1 to Figure 5 As shown, the working principle of the utility model is as follows: first, according to the length of the workpiece 5, the upper end positioning column 31 and the side end positioning column 32 of the specified position are inserted on the connecting plate 2, and the upper end positioning column 31 and the side end positioning column 32 are used to realize the restriction in three directions, and the moving block 35 is controlled to move downward by rotating the bolt 38. Since the moving block 35 is arranged between the fixed block 34 and the pushing block 36 through the wedge-shaped inclined surface sliding cooperation, the moving block 35 moves downward to push the pushing block 36 to move close to the workpiece in the groove 21, and then pushes the workpiece tightly, which is convenient to operate. Each time the workpiece aluminum strip is processed, it is pressed against the positioning columns at different positions and clamped by the pushing clamp, so that the processing origin is consistent each time, and the processing surface of the top surface of the aluminum strip is not blocked, which saves a lot of time for re-aligning the processing origin, greatly saving processing time and production cost; when the workpiece needs to be removed, the bolt 38 is rotated in the opposite direction to control the moving block 35 to move upward, and the pushing block 36 is moved outward under the push of the spring 37 to release the pre-tightening of the workpiece.

[0023] As a further preferred embodiment, a T-shaped groove 39 is provided inside the fixed block 34 and the movable block 35. The T-shaped groove 39 is inclined in the vertical downward direction close to the center of the movable block 35 to improve the movement stability between the movable block 35 and the fixed block 34 and the pushing block 36.

[0024] As a further preferred embodiment, the connecting plate 2 is sequentially and spaced downwardly and provided with a first socket group 22, a second socket group 23 and a third socket group 24, the upper end positioning column 31 is inserted into the first socket group 22, the side end positioning column 32 is inserted into the second socket group 23, the third socket group 24 is located between the first socket group 22 and the second socket group 23, and the second row of positioning columns 4 are inserted into the third socket group 24.

[0025] Wide and narrow aluminum bar workpieces need to be processed according to processing requirements. When processing narrow aluminum bar workpieces, the second row of positioning columns 4 are inserted into the third socket group 24 to shorten the distance with the pushing clamp 33 to adapt to the processing of narrow aluminum bars. At the same time, the side end positioning columns 32 can be inserted into the second socket group 23 at the specified position according to the length of the workpiece to ensure the limitation of both ends of the workpiece.

[0026] As a further preferred embodiment, the connecting plate 2 is fixedly connected to the processing base 1 by bolts.

[0027] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A quick clamping mechanism for aluminum bars for CNC machining, characterized in that: include: A processing base, a connecting plate and several groups of positioning components, the connecting plate is arranged at the upper end of the processing platform, the positioning component includes an upper positioning column, a side positioning column and a pushing clamp, the upper positioning column is arranged at intervals and plugged into the connecting plate, the side positioning column is arranged at intervals at the lower end of the upper positioning column and plugged into the connecting plate, the connecting plate is provided with grooves located below the upper positioning column at intervals, the pushing clamp is arranged in the groove, the pushing clamp includes a fixed block, a moving block, a pushing block and a spring, the fixed block is fixed in the groove, the moving block is arranged between the fixed block and the pushing block by sliding with a wedge-shaped inclined surface, the moving block is connected to the bottom of the groove by bolts, and the spring is located between the groove and the pushing block.

2. A quick clamping mechanism for aluminum bars for CNC machining according to claim 1, characterized in that: T-shaped slide grooves are arranged inside the fixed block and the moving block, and the T-shaped slide grooves are arranged obliquely along the vertical downward direction close to the center of the moving block.

3. The quick clamping mechanism for aluminum bars used for CNC machining according to claim 1, characterized in that: The connecting plate is sequentially and spaced downwardly and provided with a first jack group, a second jack group and a third jack group, the upper end positioning column is inserted into the first jack group, the side end positioning column is inserted into the second jack group, the third jack group is located between the first jack group and the second jack group, and the second row of positioning columns is inserted into the third jack group.

4. The quick clamping mechanism for aluminum bars for CNC machining according to claim 1, characterized in that: The connecting plate is fixedly connected to the processing base by bolts.

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