Fixture groove milling equipment and process for fixing

Abstract

The invention discloses jig groove milling equipment and technology for fixing, and relates to the technical field of milling, the jig groove milling equipment comprises a group of bearing bottom rails which are arranged in parallel, and a fixing plate group is arranged on the bearing bottom rails in a sliding manner; the machining frame is attached to the single bearing bottom rail, and an adjusting guide rail parallel to the bearing bottom rail is arranged on the machining frame; the machining assembly comprises a machining moving table arranged on the adjusting guide rail in a sliding mode, a guide rod perpendicular to the adjusting guide rail is arranged on the machining moving table, an adjusting table is arranged on the guide rod in a sliding mode, and a vertical guide rod and a vertical guide rail are fixedly arranged on the adjusting table. An adjusting motor is fixedly arranged at the top end of the vertical guide rail through a base plate, the vertical guide rod and the vertical guide rail are slidably provided with a milling table through an adjusting assembly, the adjusting assembly is connected to the output end of the adjusting motor through a screw rod, and the technical scheme for improving the machining precision is provided.

Description

Technical Field

[0001] The present application relates to the field of milling technology, and in particular to a fixed jig slot milling device and process. Background Art

[0002] Milling equipment is a machine tool used for metal processing. It cuts workpieces through rotating tools and is widely used in aerospace, automobile manufacturing, mold manufacturing, electronic communications and other fields. A metallurgical tool is a tool used to clamp or fix metal materials when processing metal. It is mainly used in metal hot processing processes such as forging and casting. The function of the metallurgical tool is to clamp and fix the metal material in a specific position for subsequent processing and heat treatment.

[0003] The jig is usually processed by a milling machine to have holes and slots for easy fixation and clamping. During the milling process, the contact between the milling cutter and the jig will generate vibration, causing the milling cutter and the jig to shift relative to each other, affecting the processing accuracy.

[0004] Therefore, it is necessary to provide a fixed jig slot milling device and process to solve the problems raised in the above background technology. Summary of the invention

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a fixed jig slot milling device, comprising: The supporting bottom rails are arranged in parallel as a group, and a fixing plate group is slidably arranged on the supporting bottom rails; A processing frame is arranged in close contact with a single supporting bottom rail, and an adjustment guide rail is arranged on the processing frame parallel to the supporting bottom rail; The processing component includes a processing movable table slidably arranged on the adjusting guide rail, a guide rod is arranged on the processing movable table perpendicular to the adjusting guide rail, an adjusting table is slidably arranged on the guide rod, a vertical guide rod and a vertical guide rail are fixedly arranged on the adjusting table, an adjusting motor is fixedly arranged on the top of the vertical guide rail through a pad, a milling table is slidably arranged on the vertical guide rod and the vertical guide rail through the adjusting component, and the adjusting component is connected to the output end of the adjusting motor through a screw.

[0006] Further, preferably, a driving motor and a detection seat are fixedly arranged on the supporting bottom rail, a driving rod spirally passes through the detection seat, and an end of the driving rod is connected to the driving motor, and the fixing plate group is connected to the driving rod.

[0007] Further, preferably, the fixed plate group includes a guide wedge, a pressure sensor and a clamping plate, a plurality of pressure sensors are arranged on the lower end surface of the clamping plate, and the pressure sensors are slidably arranged on the supporting bottom rail through the guide wedge.

[0008] Further, preferably, the processing movable table is driven by a driving element arranged in the adjusting guide rail so as to slide on the adjusting guide rail, and the adjusting table is driven by a driving element arranged in the processing movable table so as to slide on the processing movable table.

[0009] Furthermore, as a preference, a clamp for clamping a milling cutter is provided at the lower end of the milling table, and a power motor for driving the milling cutter is provided at the upper end of the milling table. The milling table is vertically adjusted under the drive of the adjusting component, and the milling table is horizontally adjusted under the drive of the processing moving table and the adjusting table.

[0010] Further, preferably, the adjustment assembly comprises a lower guide block and an upper guide block, the upper guide block is connected to the milling table, and the lower guide block is connected to the adjustment motor.

[0011] Further, preferably, the adjustment assembly further comprises a transfer block arranged in the lower guide block and a vibration-damping block arranged in the upper guide block, and both the transfer block and the vibration-damping block are sleeved on the vertical guide rail.

[0012] Further, preferably, an adjustment spring is provided between the vibration damping block and the adapter block, and the adjustment spring maintains tension.

[0013] A fixed jig slot milling process comprises the following steps: Ⅰ. First fix the jig on the clamping plate, keep the surface of the jig with the slot to be processed facing upwards, then adjust the positions of the fixed plate group, the processing moving table and the adjustment table, and move the milling cutter to the starting end of the processing track; Ⅱ. Start the milling cutter to rotate, and adjust the motor to control the milling table to move downward so that the milling cutter is lowered to contact the jig and reach the predetermined depth; III. By moving the fixed plate group, the processing moving table and the adjusting table, the milling cutter is controlled to process the jig along the processing trajectory; IV. Monitor the recorded values ​​of the pressure sensor and the detection seat, and compare the values ​​of the pressure sensor or the detection seat corresponding to the non-processing track to determine the size of the processing vibration and thus the processing accuracy of the processing device, and adjust the feed speed based on this to reduce vibration and ensure processing accuracy; V. During the machining process, the vibration deviation of the milling cutter is limited by the vertical guide rails and vertical guide rods, and the vibration is transferred to the entire machining assembly, thereby reducing the vibration amplitude; VI. The horizontal vibration is partially transmitted to the milling table, which drives the milling table and the upper guide block to vibrate up and down through the vibration damping block and the adjusting spring to consume the vibration kinetic energy, which is manifested as the ups and downs of the bottom surface of the processing groove on the jig, and is compensated by subsequent repeated processing.

[0014] Compared with the prior art, the present application provides a fixed jig slot milling device and process, which has the following beneficial effects: In the present application, the recorded values ​​of the pressure sensor and the detection seat are monitored, and the values ​​of the pressure sensor or the detection seat corresponding to the non-processing trajectory are compared to judge the size of the processing vibration, so as to judge the processing accuracy of the processing device, and adjust the feed speed based on this, which can effectively reduce the vibration and ensure the processing accuracy; at the same time, the vibration offset of the milling cutter is limited by the vertical guide rail and the vertical guide rod, and the vibration is transferred to the entire processing assembly, so as to reduce the vibration amplitude; in addition, the horizontal vibration part is transmitted to the milling table, and the milling table and the upper guide block are driven to vibrate up and down through the vibration damping block and the adjustment spring to consume the vibration kinetic energy, which is manifested as the undulation of the bottom surface of the processing groove on the jig, and is compensated by subsequent repeated processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings: Figure 1 It is a schematic diagram of the overall structure of a fixed jig slot milling device; Figure 2 A schematic diagram of a fixed plate assembly structure for a fixed jig slot milling device; Figure 3 A schematic diagram of the structure of a processing component for a fixed jig slot milling device; Figure 4 A schematic diagram of the structure of an adjustment component for a fixed jig slot milling device; Figure 5 A schematic diagram of the internal structure of an adjustment component for a fixed jig slot milling device; In the figure: 1. supporting bottom rail; 2. driving motor; 3. fixing plate assembly; 31. guide wedge block; 32. pressure sensor; 33. clamping plate; 4. detection seat; 5. driving rod; 6. processing frame; 7. adjusting guide rail; 8. processing assembly; 81. processing moving table; 82. guide rod; 83. adjusting table; 84. vertical guide rod; 85. vertical guide rail; 86. adjusting assembly; 861. lower guide block; 862. upper guide block; 863. adapter block; 864. vibration damping block; 865. adjusting spring; 87. adjusting motor; 88. milling table. DETAILED DESCRIPTION

[0016] See also Figures 1 to 5 In an embodiment of the present application, a fixed jig slot milling device includes: A supporting bottom rail 1 is arranged in parallel as a group, and a fixing plate group 3 is slidably arranged on the supporting bottom rail 1; A processing frame 6 is arranged in close contact with the single supporting bottom rail 1, and an adjustment guide rail 7 is arranged on the processing frame 6 in parallel with the supporting bottom rail 1; The processing assembly 8 includes a processing movable table 81 slidably arranged on the adjusting guide rail 7, a guide rod 82 is arranged on the processing movable table 81 perpendicular to the adjusting guide rail 7, an adjusting table 83 is slidably arranged on the guide rod 82, a vertical guide rod 84 and a vertical guide rail 85 are fixedly arranged on the adjusting table 83, an adjusting motor 87 is fixedly arranged on the top of the vertical guide rail 85 through a pad, a milling table 88 is slidably arranged on the vertical guide rod 84 and the vertical guide rail 85 through an adjusting assembly 86, and the adjusting assembly 86 is connected to the output end of the adjusting motor 87 through a screw.

[0017] It needs to be explained that the jig is clamped on the fixed plate group 3, and the horizontal position is adjusted by sliding the fixed plate group 3 on the supporting bottom rail 1, and the horizontal position is adjusted by sliding the processing movable table 81 on the adjustment guide rail 7, and the adjustment table 83 on the processing movable table 81, thereby controlling the position of the milling table 88 on the plane, and at the same time, the vertical position is adjusted by sliding the adjustment component 86 on the vertical guide rod 84 and the vertical guide rail 85, thereby controlling the milling table 88 to move along a specific trajectory to approach, process and move away from the jig, during which the adjustment component 86 is used to assist in reducing the displacement of the milling table 88 caused by the adjustment vibration.

[0018] As a preferred embodiment, a driving motor 2 and a detection seat 4 are fixedly installed on the supporting bottom rail 1, a driving rod 5 spirally passes through the detection seat 4, and the end of the driving rod 5 is connected to the driving motor 2, and the fixed plate group 3 is connected to the driving rod 5.

[0019] As a preferred embodiment, the fixed plate group 3 includes a guide wedge block 31, a pressure sensor 32 and a clamping plate 33. A plurality of pressure sensors 32 are arranged on the lower end surface of the clamping plate 33. The pressure sensors 32 are slidably arranged on the supporting bottom rail 1 through the guide wedge block 31.

[0020] It needs to be explained that the pressure sensor 32 and the detection seat 4 are used to monitor the relative force of the clamping plate 33 with respect to the supporting bottom rail 1. During the clamping process of the jig on the clamping plate 33, different milling directions are reflected in different numerical ranges on the pressure sensor 32 and the detection seat 4. At the same time, the numerical range is used to assist in monitoring the processing deviation status.

[0021] As a preferred embodiment, the processing movable table 81 is driven by a driving element arranged in the adjusting guide rail 7 so as to slide on the adjusting guide rail 7, and the adjusting table 83 is driven by a driving element arranged in the processing movable table 81 so as to slide on the processing movable table 81. The specific driving element can be a motor, a screw, a hydraulic rod, etc.

[0022] As a preferred embodiment, the lower end of the milling table 88 is provided with a clamp for clamping the milling cutter, and the upper end of the milling table 88 is provided with a power motor for driving the milling cutter. The milling table 88 is vertically adjusted under the drive of the adjustment component 86, and the milling table 88 is horizontally adjusted under the drive of the processing moving table 81 and the adjustment table 83.

[0023] As a preferred embodiment, the adjustment assembly 86 includes a lower guide block 861 and an upper guide block 862 , the upper guide block 862 is connected to the milling table 88 , and the lower guide block 861 is connected to the adjustment motor 87 .

[0024] As a preferred embodiment, the adjustment assembly 86 also includes a transfer block 863 disposed in the lower guide block 861 and a vibration-damping block 864 disposed in the upper guide block 862 . Both the transfer block 863 and the vibration-damping block 864 are sleeved on the vertical guide rail 85 .

[0025] It should be explained that the milling table 88 is movably arranged on the lower guide block 861 through the upper guide block 862, and is load-limited by the lower guide block 861, and is also driven by the lower guide block 861 for adjustment.

[0026] As a preferred embodiment, an adjustment spring 865 is provided between the vibration damping block 864 and the adapter block 863, and the adjustment spring 865 maintains the tension.

[0027] A fixed jig slot milling process comprises the following steps: Ⅰ. First, fix the jig on the clamping plate 33, keep the surface of the jig with the slot to be processed facing upward, then adjust the positions of the fixed plate group 3, the processing moving table 81 and the adjustment table 83, and move the milling cutter to the starting end of the processing track; II. Start the milling cutter to rotate, and control the milling table 88 to move downward by adjusting the motor 87 so that the milling cutter is lowered to contact the fixture and reach a predetermined depth. The specific landing point of the milling cutter coincides with the projection of the machining trajectory on the fixture. The number of milling cuts and the range of each milling depth are calculated based on the cutting force of the milling cutter and the physical characteristics of the fixture, and a value is selected within the calculation range to determine each machining depth; III. By moving the fixed plate group 3, the processing moving table 81 and the adjusting table 83, the milling cutter is controlled to process the jig along the processing trajectory. Specifically, the milling cutter and the jig are mainly controlled to move relative to each other according to the predetermined processing trajectory to mill out the slot hole. The whole process is repeated several times along the trajectory until the slot hole processing is completed; IV. Monitor the recorded values ​​of the pressure sensor 32 and the detection seat 4, and compare the values ​​of the pressure sensor 32 or the detection seat 4 corresponding to the non-processing track to determine the size of the processing vibration, thereby determining the processing accuracy of the processing device, and adjust the feed speed based on this to reduce vibration and ensure processing accuracy. In the specific processing process, the milling cutter and the tool move relative to each other along the processing track, and the force decomposition on the tool is monitored by the pressure sensor 32 and the detection seat 4 respectively; V. During the machining process, the vibration displacement of the milling cutter is limited by the vertical guide rail 85 and the vertical guide rod 84, and the vibration is transferred to the entire machining assembly 8, thereby reducing the vibration amplitude; VI. The horizontal vibration part is transmitted to the milling table 88, which drives the milling table 88 and the upper guide block 862 to vibrate up and down through the vibration damping block 864 and the adjustment spring 865 to consume the vibration kinetic energy, which is manifested as the ups and downs of the bottom surface of the processing groove on the jig, and is compensated by subsequent repeated processing.

[0028] What has been described above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed in the present application according to the technical solution and application concept of the present application, which should be covered by the protection scope of the present application.

Claims

1. A fixed jig slot milling device, characterized in that: include: A supporting bottom rail (1) is arranged in parallel as a group, and a fixing plate group (3) is slidably arranged on the supporting bottom rail (1); A processing frame (6) is arranged in close contact with the single supporting bottom rail (1), and an adjustment guide rail (7) is arranged on the processing frame (6) parallel to the supporting bottom rail (1); The processing assembly (8) comprises a processing movable table (81) slidably arranged on the adjusting guide rail (7); a guide rod (82) is arranged on the processing movable table (81) perpendicular to the adjusting guide rail (7); an adjusting table (83) is slidably arranged on the guide rod (82); a vertical guide rod (84) and a vertical guide rail (85) are fixedly arranged on the adjusting table (83); an adjusting motor (87) is fixedly arranged at the top of the vertical guide rail (85) via a pad; a milling table (88) is slidably arranged on the vertical guide rod (84) and the vertical guide rail (85) via an adjusting assembly (86); and the adjusting assembly (86) is connected to the output end of the adjusting motor (87) via a screw.

2. A fixed jig slot milling device according to claim 1, characterized in that: A driving motor (2) and a detection seat (4) are fixedly arranged on the supporting bottom rail (1); a driving rod (5) spirally passes through the detection seat (4); and an end of the driving rod (5) is connected to the driving motor (2); and the fixing plate group (3) is connected to the driving rod (5).

3. A fixed jig slot milling device according to claim 2, characterized in that: The fixed plate group (3) comprises a guide wedge (31), a pressure sensor (32) and a clamping plate (33); a plurality of pressure sensors (32) are arranged on the lower end surface of the clamping plate (33); and the pressure sensors (32) are slidably arranged on the supporting bottom rail (1) via the guide wedge (31).

4. The fixed jig slot milling device according to claim 1, characterized in that: The processing movable table (81) is driven by a driving element arranged in the adjustment guide rail (7) so as to slide on the adjustment guide rail (7), and the adjustment table (83) is driven by a driving element arranged in the processing movable table (81) so as to slide on the processing movable table (81).

5. The fixed jig slot milling device according to claim 1, characterized in that: A clamp for clamping a milling cutter is arranged at the lower end of the milling table (88), and a power motor for driving the milling cutter is arranged at the upper end of the milling table (88). The milling table (88) is driven by the adjustment component (86) to adjust the vertical position, and the milling table (88) is driven by the processing moving table (81) and the adjustment table (83) to adjust the horizontal position.

6. The fixed jig slot milling device according to claim 3, characterized in that: The adjustment assembly (86) comprises a lower guide block (861) and an upper guide block (862), the upper guide block (862) being connected to the milling table (88), and the lower guide block (861) being connected to the adjustment motor (87).

7. A fixed jig slot milling device according to claim 6, characterized in that: The adjustment assembly (86) further comprises a transfer block (863) arranged in the lower guide block (861) and a vibration-damping block (864) arranged in the upper guide block (862); the transfer block (863) and the vibration-damping block (864) are both sleeved on the vertical guide rail (85).

8. The fixed jig slot milling device according to claim 7, characterized in that: An adjustment spring (865) is provided between the vibration-damping block (864) and the adapter block (863), and the adjustment spring (865) maintains tension.

9. A fixed jig slot milling process, which uses a fixed jig slot milling device as claimed in any one of claims 7 to 8, characterized in that: The steps include: Ⅰ. First, fix the jig on the clamping plate (33), keep the surface of the slot to be processed facing upward, then adjust the positions of the fixed plate group (3), the processing movable table (81) and the adjustment table (83), and move the milling cutter to the starting end of the processing track; II. Starting the milling cutter to rotate, and controlling the milling table (88) to move downward by the regulating motor (87) so that the milling cutter is lowered to contact the jig and reach a predetermined depth; III. Controlling the milling cutter to process the tool along a processing trajectory by moving the fixed plate group (3), the processing moving table (81) and the adjusting table (83); IV. monitoring the recorded values ​​of the pressure sensor (32) and the detection seat (4), and comparing the values ​​of the pressure sensor (32) or the detection seat (4) corresponding to the non-processing track to determine the magnitude of the processing vibration and thereby determine the processing accuracy of the processing device, and adjusting the feed speed based on this to reduce the vibration and ensure the processing accuracy; V. During the machining process, the vibration deviation of the milling cutter is limited by the vertical guide rail (85) and the vertical guide rod (84), and the vibration is transferred to the entire machining assembly (8), thereby reducing the vibration amplitude; VI. The horizontal vibration part is transmitted to the milling table (88), and the vibration damping block (864) and the adjustment spring (865) drive the milling table (88) and the upper guide block (862) to vibrate up and down to consume the vibration kinetic energy, which is manifested as the ups and downs of the bottom surface of the processing groove on the jig, and is compensated by subsequent repeated processing.

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