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CN-121988771-A - Three-hole quick chamfering equipment for four-way valve seat

CN121988771ACN 121988771 ACN121988771 ACN 121988771ACN-121988771-A

Abstract

The invention discloses a four-way valve seat three-hole quick chamfering device, which relates to the technical field of chamfering machine tools and comprises a frame, a movable table, a first driving piece, at least two bearing tables and a placing cavity, wherein the movable table is arranged on the frame in a reciprocating sliding manner, the first driving piece is in transmission connection with the movable table and is used for driving the movable table to switch between a corresponding chamfering station and a corresponding loading and unloading station in a reciprocating manner, the two bearing tables are fixedly arranged on the movable table and move in a reciprocating manner along with the movable table, and the placing cavity for placing a workpiece is formed in each bearing table. The three-hole quick chamfering device for the four-way valve seat is capable of completely overlapping chamfering processing and feeding and discharging operations in time, reducing the process standby time of the device to the minimum and remarkably improving the production efficiency. Meanwhile, the traditional manual compression is replaced by the automatic swing clamping mode, so that the labor intensity is reduced, uneven clamping force and positioning deviation caused by human factors are avoided, and a foundation is laid for guaranteeing the machining precision.

Inventors

  • LIANG ZHIJUN
  • FENG LEIMING
  • CAI XUDONG
  • ZHANG ZHEYU

Assignees

  • 新昌县科瑞机械有限公司

Dates

Publication Date
20260508
Application Date
20260310

Claims (10)

  1. 1. The utility model provides a quick chamfer equipment in three holes of cross disk seat, includes frame (1), its characterized in that still includes: A movable table (22) which is arranged on the frame (1) in a reciprocating sliding manner; The first driving piece is in transmission connection with the movable table (22) and is used for driving the movable table (22) to be switched back and forth between the corresponding chamfering station and the corresponding loading and unloading station; At least two bearing tables (23) fixedly arranged on the movable table (22) and moving reciprocally along with the movable table, wherein each bearing table (23) is provided with a placing cavity (231) for placing a workpiece (8); A chamfering mechanism which is arranged on the frame (1) and is positioned at the chamfering station and is provided with a drilling tool (6) corresponding to the position of the placing cavity (231); And the clamping assembly (7), the clamping assembly (7) comprises a flexible pressing plate (71) which is arranged on the bearing table (23) in a swinging way, and the flexible pressing plate (71) has a clamping state of swinging downwards and pressing the workpiece (8) when the movable table (22) drives the bearing table (23) to enter the chamfering station and a releasing state of swinging upwards and keeping away from the workpiece (8) after chamfering is finished.
  2. 2. A four-way valve seat three-hole quick chamfering apparatus according to claim 1, characterized in that the clamping assembly (7) further comprises a rotating rod (73) and a telescopic rod (72); The rotary rod (73) is rotatably arranged on the bearing table (23) and is in transmission connection with a driving piece to realize swinging, the telescopic rod (72) is slidably arranged inside the rotary rod (73) along the axial direction of the rotary rod, and the flexible pressing plate (71) is connected to the end part of the telescopic rod (72).
  3. 3. The four-way valve seat three-hole quick chamfering equipment according to claim 2, characterized in that a guide structure is further arranged on the bearing table (23), and when the rotating rod (73) swings towards the workpiece (8), the guide structure drives the telescopic rod (72) to extend out of the rotating rod (73), so that the flexible pressing plate (71) is pushed towards the center direction of the workpiece when the upper end face of the workpiece (8) is pressed.
  4. 4. The three-hole rapid chamfering device for a four-way valve seat according to claim 3, wherein the guiding structure comprises a fixing seat (251) fixedly arranged on the bearing table (23), and a guiding groove (253) for guiding the telescopic rod (72) is formed in the fixing seat (251), and the track of the guiding groove is set to enable the telescopic rod (72) to slide along the axial direction of the rotary rod (73) when the rotary rod (73) swings.
  5. 5. The four-way valve seat three-hole quick chamfering equipment according to claim 2, characterized in that the clamping component (7) further comprises a poking rod (76), the poking rod (76) is movably arranged on the bearing table (23), a first end of the poking rod is provided with a shovel plate for pushing the workpiece (8), and a second end of the poking rod is in transmission connection with the telescopic rod (72).
  6. 6. The four-way valve seat three-hole quick chamfering equipment according to claim 5 is characterized in that a connecting piece is fixedly arranged on the telescopic rod (72), a movable groove (761) which is in sliding fit with the connecting piece is formed in the second end of the poking rod (76), a rotating seat (77) is fixedly arranged on the poking rod (76), a hook-shaped portion (762) which is in movable abutting connection with the rotating seat (77) is arranged on the poking rod (76), and the idle stroke design of the movable groove (761) and the hook-shaped portion (762) are matched with a fulcrum of the rotating seat (77) so that when the telescopic rod (72) is retracted, the time delay of a shovel plate is poked upwards.
  7. 7. The four-way valve seat three-hole rapid chamfering equipment according to claim 1, characterized in that a pushing rod (24) is fixedly arranged on the movable table (22), and a pushing block (241) corresponding to the placing cavity (231) is arranged at the end part of the pushing rod (24).
  8. 8. The four-way valve seat three-hole rapid chamfering equipment according to claim 1, wherein a spiral feeding channel (4) is further arranged on the frame (1), and a feeding track (41) is arranged at the tail end of the spiral feeding channel (4).
  9. 9. The four-way valve seat three-hole rapid chamfering equipment according to claim 1, characterized in that a residue collecting groove communicated with the bottom of the placing cavity (231) is formed in the bearing table (23), an air blowing pipe (26) is arranged on the bearing table (23), and an air blowing port (261) of the air blowing pipe (26) faces the placing cavity (231).
  10. 10. The four-way valve seat three-hole rapid chamfering equipment according to claim 1, characterized in that the first driving piece is a servo motor (21), and the movable table (22) is slidably arranged on the frame (1) through a guide rail (221).

Description

Three-hole quick chamfering equipment for four-way valve seat Technical Field The invention relates to the technical field of chamfering machine tools, in particular to a three-hole rapid chamfering device for a four-way valve seat. Background The four-way valve is used as a key component in refrigeration equipment, is widely applied to air conditioner, heat pump and other systems, and has the working principle that the flow direction of the refrigerant is converted through the reversing of a valve core. The four-way valve seat is a core bearing component of the four-way valve, and is generally provided with three ports (or mounting holes) which are arranged in a straight line shape, and the chamfering quality of the ports is directly related to the assembly precision of the valve seat and a copper pipe and the sealing performance of the whole valve. In the process of processing the four-way valve seat, chamfering is an indispensable process. In the prior art, according to chinese patent publication No. CN112692634a, a four-way valve reversing chamfering device is provided, and the device drives a pore plate to rotate through a motor, and cooperates with a cam link mechanism formed by a guide post, a guide block and a sliding rod to control a motion track of a clamping device, so as to realize chamfering processing on a workpiece. Although the device realizes automation of chamfering processing to a certain extent, the device has complex structure, motion control depends on multi-rod linkage, the requirements on the processing precision and the assembly precision of parts are higher, and only one workpiece can be processed at a time, so that the production efficiency is limited. In addition, the clamping and positioning methods in the above patents have limitations. The existing clamping mechanism mostly adopts a mode of single-point pressing from top to bottom, and can prevent a workpiece from tilting in the machining process, but can not eliminate a lateral gap between the workpiece and the positioning cavity. When three drills cut synchronously, the generated cutting force can cause the workpiece to generate tiny displacement in the horizontal direction, so that the center of the inverted hole is deviated, and the position accuracy and consistency of chamfering are affected. Disclosure of Invention The invention aims to provide a three-hole quick chamfering device for a four-way valve seat, which is used for solving the problems. In order to achieve the purpose, the invention provides the following technical scheme that the three-hole quick chamfering equipment for the four-way valve seat comprises a frame and further comprises: the movable table is arranged on the frame in a reciprocating sliding manner; the first driving piece is in transmission connection with the movable table and is used for driving the movable table to switch back and forth between the corresponding chamfering station and the corresponding loading and unloading station; At least two bearing tables fixedly arranged on the movable table and moving reciprocally along with the movable table, wherein each bearing table is provided with a placing cavity for placing a workpiece; the chamfering mechanism is arranged on the frame and positioned at the chamfering station and provided with a drill bit corresponding to the position of the placing cavity; And the clamping assembly comprises a flexible pressing plate which is arranged on the bearing table in a swinging way, and the flexible pressing plate has a clamping state of swinging downwards and pressing a workpiece when the movable table drives the bearing table to enter the chamfering station, and a releasing state of swinging upwards and keeping away from the workpiece after chamfering is finished. Preferably, the clamping assembly further comprises a rotating rod and a telescopic rod; The rotary rod is rotatably arranged on the bearing table and is in transmission connection with a driving piece to realize swinging, the telescopic rod is arranged inside the rotary rod in a sliding way along the axial direction of the rotary rod, and the flexible pressing plate is connected with the end part of the telescopic rod. Preferably, the bearing table is further provided with a guide structure, and when the rotating rod swings towards the workpiece, the guide structure drives the telescopic rod to extend out of the rotating rod, so that the flexible pressing plate is pushed towards the center direction of the workpiece when the upper end face of the workpiece is pressed. Preferably, the guide structure comprises a fixed seat fixedly arranged on the bearing table, wherein a guide groove for guiding the telescopic rod is formed in the fixed seat, and the track of the guide groove is set to enable the telescopic rod to slide along the axial direction of the rotary rod when the rotary rod swings. Preferably, the clamping assembly further comprises a poking rod, the poking rod is movably arranged on