Fixture fixing platform of four-axis numerical control machining center

Abstract

The utility model belongs to the technical field of numerical control machining, and particularly relates to a four-axis numerical control machining center fixing clamp platform which comprises a base, a machining table and a control panel, the machining table is fixedly installed on the top of the base, a clamping device is arranged in the machining table, and the clamping device comprises a clamping unit, an adjusting unit and a scrap removing unit. According to the four-axis numerical control machining center fixing clamp platform, a clamping unit is arranged, a workpiece to be machined is placed in the left fixing frame and the right fixing frame, then a threaded rod is rotated to enable a clamping plate to move downwards to abut against the upper surface of the workpiece till the workpiece is clamped, and when the angle of the workpiece needs to be adjusted, only a first motor needs to be started to drive a driving shaft to rotate; the driving shaft drives the left fixing frame to rotate, then the right fixing frame rotates around the inner ring of the first bearing through the driven shaft, the clamped workpiece rotates, angle adjustment of the workpiece is achieved, operation is convenient, the adjusting efficiency is high, and the problems that in the background technology, operation is complex, and the machining efficiency of the workpiece is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machining, in particular to a fixed fixture platform for a four-axis numerical control machining center. Background Art

[0002] CNC machining centers are high-efficiency automated machine tools that are composed of mechanical equipment and CNC systems and are suitable for machining complex parts. CNC machining centers are one of the most productive and widely used CNC machine tools in the world. In four-axis CNC machining centers, a fixture platform is needed to fix the objects.

[0003] The clamping effect of the existing fixture platform is poor. When the workpiece needs to be adjusted in angle, it needs to be re-clamped, which is time-consuming and labor-intensive.

[0004] For example, a four-axis CNC machining center fixed fixture platform disclosed in Chinese patent CN215546812U, when the first clamping plate and the second clamping plate slide left and right, they generate opposite forces on the workpiece, thereby clamping the workpiece, and converting the rotational motion of the push rod motor into the linear reciprocating motion of the electric push rod. When the electric push rod is extended, it drives the extrusion plate to move upward, thereby driving the clamping block to move upward to contact the bottom of the workpiece and squeeze the workpiece. The clamping block cooperates with the first clamping plate and the second clamping plate to fix the workpiece, thereby improving the clamping effect. The second rotating shaft is driven to rotate by the second forward and reverse motor, thereby driving the second clamping plate to rotate around the second rotating shaft, and then driving the workpiece to rotate synchronously, which facilitates the adjustment of the angle of the workpiece. At this time, the first clamping plate and the first rotating shaft are in a rotating state, and there is no need to re-clamp the workpiece, saving time and effort.

[0005] However, before adjusting the workpiece angle, the device needs to use an electric push rod to move the clamping block away from the workpiece. After the workpiece angle is adjusted, the electric push rod needs to be started again to make the clamping block abut against the workpiece to fix the workpiece. The operation is complicated and affects the processing efficiency of the workpiece. Utility Model Content

[0006] The utility model aims to provide a four-axis CNC machining center fixed fixture platform to solve the problem of complicated operation and affecting the machining efficiency of workpieces proposed in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a four-axis CNC machining center fixed fixture platform, including a base, a processing table and a control panel, the processing table is fixedly installed on the top of the base, the control panel is installed on the right side of the processing table, and a clamping device is arranged inside the processing table.

[0008] The clamping device comprises a clamping unit, an adjusting unit and a chip removing unit. The clamping unit is arranged inside the processing table, the adjusting unit is arranged at the lower end of the clamping unit, and the chip removing unit is arranged at the top of the processing table.

[0009] The clamping unit includes a support frame, a motor, a driving shaft, a bearing, a driven shaft, a fixed frame, a limit rod, a threaded rod and a clamping plate. The support frame is installed on the left and right sides of the processing table, the motor is fixedly installed on the left side of the left support frame, one end of the driving shaft is fixedly installed on the output end of the motor, the bearing is fixedly installed inside the right support frame, one end of the driven shaft is fixedly installed on the inner ring of the bearing, the fixed frame is fixedly installed on one end of the driving shaft and the driven shaft, the limit rod is fixedly installed on the front and rear ends inside the fixed frame, the threaded rod is threadedly connected to the inside of the fixed frame, and the clamping plate is rotatably connected to the bottom of the threaded rod.

[0010] Preferably, the adjustment unit includes motor 2, a connecting rod, bearing 2 and limit rod 2, the motor 2 is fixedly installed at the lower end of the right side of the processing table, one end of the connecting rod is fixedly installed at the output end of motor 2, the bearing 2 is fixedly installed at the lower end inside the processing table, and the limit rod 2 is fixedly installed at the front end inside the processing table.

[0011] Preferably, the chip removal unit includes a collection box, an exhaust fan, an exhaust duct and an air suction hood, the collection box is installed on the top of the processing table, the exhaust fan is installed on the right side of the collection box, the exhaust duct is connected to the left side of the collection box, and the air suction hood is connected to the end of the exhaust duct away from the collection box.

[0012] Preferably, the front and rear two limiting rods 1 respectively penetrate the front and rear ends of the clamping plate, and the limiting rods 1 play a limiting role in the movement of the clamping plate, so that the clamping plate moves up and down along the limiting rods 1.

[0013] Preferably, a limit hole and a threaded hole are respectively provided inside the front and rear ends of the support frame, the limit rod 2 passes through the limit hole, and the support frame is threadedly connected to the outside of the connecting rod, and the left and right ends of the connecting rod are provided with external threads in opposite directions. The connecting rod is driven to rotate by starting the second motor. When the connecting rod is threadedly connected to the two support frames, the two support frames are moved left and right along the limit rod 2, and the distance between the two fixed frames is adjusted, thereby facilitating the clamping of workpieces of different sizes.

[0014] Preferably, one end of the connecting rod away from the second motor is fixedly mounted on the inner ring of the second bearing, and the second bearing supports the connecting rod, so that the connecting rod rotates more smoothly.

[0015] Preferably, a rubber pad is installed on the lower surface of the clamping plate, so as to prevent the surface of the workpiece from being scratched when the clamping plate clamps the workpiece.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The four-axis CNC machining center fixed fixture platform is provided with a clamping unit to place the workpiece to be processed inside the left and right fixed frames, and then the threaded rod is rotated to move the clamping plate downward to abut against the upper surface of the workpiece until the workpiece is clamped. When the workpiece angle needs to be adjusted, it is only necessary to start the motor to drive the active shaft to rotate, and the active shaft drives the left fixed frame to rotate, and then the right fixed frame rotates around the inner ring of the bearing through the driven shaft, so that the clamped workpiece rotates, and the angle of the workpiece is adjusted. The operation is convenient and the adjustment efficiency is high, which solves the problem of complex operation and affecting the processing efficiency of the workpiece proposed in the background technology.

[0018] 2. The four-axis CNC machining center has a fixed fixture platform. By setting a chip removal unit, the exhaust fan is started to suck away the waste chips attached to the thread grooves of the connecting rod and the threaded rod, thereby preventing the waste chips from affecting the rotation of the connecting rod and the threaded rod and causing scratches when used next time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the partial structure of the clamping unit of the utility model;

[0021] Figure 3 This is a partial structural exploded view of the clamping unit of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the regulating unit of the utility model;

[0023] Figure 5 It is a schematic diagram of the structure of the chip removal unit of the utility model.

[0024] In the figure: 1. base; 2. processing table; 3. control panel; 401. support frame; 402. motor 1; 403. driving shaft; 404. bearing 1; 405. driven shaft; 406. fixing frame; 407. limit rod 1; 408. threaded rod; 409. clamp; 501. motor 2; 502. connecting rod; 503. bearing 2; 504. limit rod 2; 601. collection box; 602. exhaust fan; 603. exhaust pipe; 604. suction hood. 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] See also Figure 1-Figure 5 , the utility model provides a technical solution:

[0027] Embodiment 1:

[0028] A four-axis CNC machining center fixed fixture platform comprises a base 1, a machining table 2 and a control panel 3, wherein the machining table 2 is fixedly mounted on the top of the base 1, the control panel 3 is mounted on the right side of the machining table 2, and a clamping device is arranged inside the machining table 2.

[0029] The clamping device includes a clamping unit, an adjusting unit and a chip removing unit. The clamping unit is arranged inside the processing table 2 , the adjusting unit is arranged at the lower end of the clamping unit, and the chip removing unit is arranged at the top of the processing table 2 .

[0030] The clamping unit includes a support frame 401, a motor 402, a driving shaft 403, a bearing 404, a driven shaft 405, a fixing frame 406, a limit rod 407, a threaded rod 408 and a clamping plate 409. The support frame 401 is installed on the left and right sides of the processing table 2, the motor 402 is fixedly installed on the left side of the left support frame 401, one end of the driving shaft 403 is fixedly installed on the output end of the motor 402, the bearing 404 is fixedly installed inside the right support frame 401, and one end of the driven shaft 405 is fixedly installed on the bearing 404. Inner circle, the fixed frame 406 is fixedly installed on the driving shaft 403 and one end of the driven shaft 405, and the limit rod 407 is fixedly installed on the front and rear ends inside the fixed frame 406. The front and rear limit rods 407 respectively penetrate the front and rear ends of the clamping plate 409, and the limit rod 407 limits the movement of the clamping plate 409, so that the clamping plate 409 moves up and down along the limit rod 407. The threaded rod 408 is threadedly connected to the inside of the fixed frame 406, and the clamping plate 409 is rotatably connected to the bottom of the threaded rod 408, and the workpiece is clamped by the clamping plate 409.

[0031] The adjusting unit includes a motor 501, a connecting rod 502, a bearing 503 and a limit rod 504. The motor 501 is fixedly installed at the lower end of the right side of the processing table 2. One end of the connecting rod 502 is fixedly installed at the output end of the motor 501. The end of the connecting rod 502 away from the motor 501 is fixedly installed at the inner ring of the bearing 503. The connecting rod 502 is supported by the bearing 503 to make the rotation of the connecting rod 502 more stable. The bearing 503 is fixedly installed at the lower end of the processing table 2. The limit rod 504 is fixedly installed at the front of the processing table 2. At the end, limiting holes and threaded holes are respectively provided inside the front and rear ends of the support frame 401, the limiting rod 504 passes through the limiting hole, and the support frame 401 is threadedly connected to the outside of the connecting rod 502, and the left and right ends of the connecting rod 502 are provided with external threads in opposite directions. By starting the second motor 501 to drive the connecting rod 502 to rotate, when the connecting rod 502 is threadedly connected to the two support frames 401, the two support frames 401 are moved left and right along the limiting rod 504, and the distance between the two fixed frames 406 is adjusted, so as to facilitate clamping of workpieces of different sizes.

[0032] Embodiment 2:

[0033] On the basis of Example 1: the chip removal unit includes a collection box 601, an exhaust fan 602, an exhaust pipe 603 and an air suction hood 604. The collection box 601 is installed on the top of the processing table 2. The waste chips generated during processing are collected through the collection box 601. The exhaust fan 602 is installed on the right side of the collection box 601. By starting the exhaust fan 602, the waste chips attached to the connecting rod 502 and the threaded groove of the threaded rod 408 are sucked away. The exhaust pipe 603 is connected to the left side of the collection box 601, and the air suction hood 604 is connected to the end of the exhaust pipe 603 away from the collection box 601.

[0034] Embodiment three:

[0035] On the basis of the second embodiment: a rubber pad is installed on the lower surface of the clamping plate 409, so as to prevent the surface of the workpiece from being scratched when the clamping plate 409 clamps the workpiece.

[0036] When in use, the connecting rod 502 is driven to rotate by starting the motor 2 501, and the connecting rod 502 is threadedly connected to the left and right support frames 401, so that the left and right support frames 401 drive the fixing frame 406 to move left and right to a suitable position, and then the workpiece to be processed is placed inside the left and right fixing frames 406, and then the threaded rod 408 is rotated to move the clamping plate 409 down and abut against the upper surface of the workpiece until the workpiece is clamped. When the angle of the workpiece needs to be adjusted, the motor 1 402 is started to drive the active shaft 403 to rotate, and the active shaft 403 drives the left fixing frame 406 to rotate, and then the right fixing frame 406 rotates around the inner ring of the bearing 1 404 through the driven shaft 405, so that the clamped workpiece rotates to achieve the angle adjustment of the workpiece. After the four-axis CNC machine tool processes the workpiece, the exhaust fan 602 is started to suck away the waste chips attached to the thread grooves of the connecting rod 502 and the threaded rod 408, thereby increasing the service life of the connecting rod 502 and the threaded rod 408.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A four-axis CNC machining center fixed fixture platform, comprising a base (1), a processing table (2) and a control panel (3), wherein the processing table (2) is fixedly mounted on the top of the base (1), and the control panel (3) is mounted on the right side of the processing table (2), characterized in that: A clamping device is provided inside the processing table (2); The clamping device comprises a clamping unit, an adjusting unit and a chip removal unit, wherein the clamping unit is arranged inside the processing table (2), the adjusting unit is arranged at the lower end of the clamping unit, and the chip removal unit is arranged at the top of the processing table (2); The clamping unit comprises a support frame (401), a motor 1 (402), a driving shaft (403), a bearing 1 (404), a driven shaft (405), a fixing frame (406), a limiting rod 1 (407), a threaded rod (408) and a clamping plate (409), wherein the support frame (401) is installed on the left and right sides of the processing table (2), the motor 1 (402) is fixedly installed on the left side of the left support frame (401), and one end of the driving shaft (403) is fixedly installed on the output end of the motor 1 (402). The bearing 1 (404) is fixedly installed inside the right support frame (401), one end of the driven shaft (405) is fixedly installed on the inner ring of the bearing 1 (404), the fixed frame (406) is fixedly installed on the driving shaft (403) and one end of the driven shaft (405), the limit rod 1 (407) is fixedly installed on the front and rear ends inside the fixed frame (406), the threaded rod (408) is threadedly connected to the inside of the fixed frame (406), and the clamping plate (409) is rotatably connected to the bottom of the threaded rod (408).

2. A four-axis CNC machining center fixed fixture platform according to claim 1, characterized in that: The adjustment unit comprises a second motor (501), a connecting rod (502), a second bearing (503) and a second limiting rod (504); the second motor (501) is fixedly mounted on the lower end of the right side of the processing table (2); one end of the connecting rod (502) is fixedly mounted on the output end of the second motor (501); the second bearing (503) is fixedly mounted on the lower end inside the processing table (2); and the second limiting rod (504) is fixedly mounted on the front end inside the processing table (2).

3. The four-axis CNC machining center fixed fixture platform according to claim 1, characterized in that: The chip removal unit comprises a collection box (601), an exhaust fan (602), an exhaust pipe (603) and an air suction hood (604); the collection box (601) is installed on the top of the processing table (2); the exhaust fan (602) is installed on the right side of the collection box (601); the exhaust pipe (603) is connected to the left side of the collection box (601); and the air suction hood (604) is connected to one end of the exhaust pipe (603) away from the collection box (601).

4. The four-axis CNC machining center fixed fixture platform according to claim 1, characterized in that: The two front and rear limiting rods (407) respectively penetrate the front and rear ends of the clamping plate (409).

5. The four-axis CNC machining center fixed fixture platform according to claim 2, characterized in that: The support frame (401) has a limit hole and a threaded hole at both ends, respectively. The second limit rod (504) passes through the limit hole. The support frame (401) is threadedly connected to the outside of the connecting rod (502). The left and right ends of the connecting rod (502) have external threads in opposite directions.

6. The four-axis CNC machining center fixed fixture platform according to claim 2, characterized in that: One end of the connecting rod (502) away from the second motor (501) is fixedly mounted on the inner ring of the second bearing (503).

7. The four-axis CNC machining center fixed fixture platform according to claim 1, characterized in that: A rubber pad is installed on the lower surface of the clamping plate (409).

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