Valve element chamfering machining device

Abstract

The utility model relates to a valve element chamfering machining device which comprises a base, a spindle box, a chuck and a chamfering mechanism. The chamfering mechanism comprises a longitudinal feeding mechanism arranged on the base, a transverse feeding mechanism arranged above the longitudinal feeding mechanism, a tool mounting seat arranged above the transverse feeding mechanism and a chamfering tool arranged on the tool mounting seat, a sliding rail is arranged above the transverse feeding mechanism and extends in the longitudinal feeding direction, and the chamfering tool is arranged on the tool mounting seat. The cutter mounting seat is movably mounted on the sliding rail, and a control mechanism for controlling the cutter mounting seat to move or be fixed is arranged between the cutter mounting seat and the sliding rail. The control mechanism is arranged to control the cutter mounting base to move or be fixed, the cutter mounting base can be manually moved during feeding and discharging to make up operation space, the feeding and discharging speed of the chuck is increased, meanwhile, the overall stroke of the longitudinal feeding mechanism is reduced, and machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valve processing equipment, in particular to a valve core chamfering processing device. Background Art

[0002] The raw material for the production of valve cores is usually rods. During the production process of the valve core, the outer side of the valve core and the through holes in the valve core need to be processed and formed, and then the processed valve core is cut off after the processing is completed. However, the edge of the through hole at one end of the cut surface is prone to burrs, and the through hole on one side of the cut surface needs to be chamfered and deburred later. The existing through hole chamfering is usually performed by a skilled operator who clamps the workpiece to a fixture and then manually chamfers it with the help of a drill bit rotating on a drilling machine. However, the coaxiality of the drill bit is not good, and the drill bit is prone to shaking during rotation, so that the chamfered surface formed by this chamfering method is not good, and the forming accuracy of the chamfer is not high, which is relatively troublesome and needs to be improved.

[0003] A Chinese utility model patent with authorization announcement number CN216829591U discloses a chamfering device for processing bearing steel. The chamfering mechanism's lateral feed mechanism and longitudinal feed mechanism drive the tool body of the tool holder assembly to move horizontally and vertically, and synchronously cut the groove body and chamfer of the bearing steel. However, when the pneumatic chuck is unloaded and reloaded, the tool holder assembly needs to be driven by the lateral feed mechanism or the longitudinal feed mechanism to move a certain distance away from the pneumatic chuck to make room for operation. This requires a certain amount of waiting time, which affects the speed of unloading and reloading the pneumatic chuck and reduces the processing efficiency. Utility Model Content

[0004] The utility model aims to provide a valve core chamfering processing device to solve the problems raised by the background technology.

[0005] The above-mentioned purpose of the utility model is achieved through the following technical solutions: a valve core chamfering processing device, comprising: a base, a spindle box arranged at one end of the base, a chuck arranged on the spindle box and a chamfering mechanism arranged on one side of the chuck, the chamfering mechanism comprising a longitudinal feed mechanism arranged on the base, a transverse feed mechanism arranged above the longitudinal feed mechanism, a tool mounting seat arranged above the transverse feed mechanism and a chamfering tool arranged on the tool mounting seat, a slide rail is arranged above the transverse feed mechanism, the slide rail extends along the longitudinal feed direction, the tool mounting seat is movably mounted on the slide rail, and a control mechanism for controlling the movement or fixation of the tool mounting seat is arranged between the tool mounting seat and the slide rail.

[0006] Preferably, the control mechanism includes a rack arranged on one side of the slide rail, ratchets linearly distributed on the rack, a pawl arranged on one side of the rack, and a handle for driving the pawl to move closer to or away from the rack, the ratchet is inclined toward the chuck, one end of the pawl is hinged to the tool mounting seat, and the other end is provided with a latch tooth, and the latch tooth is inserted between two adjacent ratchets.

[0007] Preferably, the ratchet has an inclined first sliding surface and a first blocking surface located on the first sliding surface close to the chuck, and the latch has a second sliding surface with the same inclination direction as the first sliding surface and a second blocking surface parallel to the first blocking surface.

[0008] Preferably, the handle is rotatably mounted on the tool mounting seat, and a linkage assembly is connected between the handle and the pawl.

[0009] Preferably, the linkage assembly includes a screw rod horizontally arranged in the tool mounting seat, a nut seat threadedly mounted on the screw rod, a connecting rod connected between the nut seat and the pawl, and a bevel gear set connected between the handle and the end of the screw rod.

[0010] Preferably, a return spring is provided in the tool mounting seat for driving the pawl toward the rack.

[0011] Preferably, a limit stop is provided above the transverse feed mechanism, and the limit stop is located at one end of the tool mounting seat close to the chuck.

[0012] Preferably, the longitudinal feeding mechanism comprises a longitudinal guide rail arranged on the base, a first feeding platform slidably mounted on the longitudinal guide rail, and a first screw mechanism that drives the first feeding platform to move.

[0013] Preferably, the lateral feed mechanism includes a lateral guide rail arranged on the first feed platform, a second feed platform slidably mounted on the lateral guide rail, and a second screw mechanism for driving the second feed platform to move, and the slide rail is arranged on the second feed platform.

[0014] The beneficial effects of the utility model are as follows: the utility model controls the movement or fixation of the tool mounting seat by setting a control mechanism. The tool mounting seat can be manually moved to make room for operation during loading and unloading, thereby increasing the loading and unloading speed of the chuck, while reducing the overall stroke of the longitudinal feed mechanism and improving processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the longitudinal feeding mechanism and the transverse feeding mechanism in the embodiment of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the control mechanism in the embodiment of the utility model;

[0018] Figure 4 yes Figure 3 A partial enlarged view of the middle A;

[0019] In the figure: 1-base, 2-spindle box, 3-chuck, 4-longitudinal feed mechanism, 401-first feed platform, 402-longitudinal guide rail, 403-first screw mechanism, 5-lateral feed mechanism, 501-second feed platform, 502-lateral guide rail, 503-second screw mechanism, 6-tool mounting seat, 7-chamfering tool, 8-slide rail, 9-control mechanism, 901-rack, 902-ratchet, 9021-first sliding surface, 9022-first blocking surface, 903-ratchet, 904-grip, 9041-second sliding surface, 9042-second blocking surface, 905-handle, 906-screw, 907-nut seat, 908-connecting rod, 909-bevel gear set, 910-reset spring, 10-limit block. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0021] This specific embodiment is merely an explanation of the utility model, and it is not a limitation of the utility model. After reading this specification, those skilled in the art may make non-creative modifications to the embodiment as needed, but as long as it is within the scope of the claims of the utility model, it shall be protected by the patent law.

[0022] Example: Figure 1-4 As shown, a valve core chamfering processing device includes: a base 1, a spindle box 2 arranged at one end of the base 1, a chuck 3 arranged on the spindle box 2, and a chamfering mechanism arranged at one side of the chuck 3.

[0023] The chamfering mechanism includes a longitudinal feeding mechanism 4 arranged on the base 1 , a transverse feeding mechanism 5 arranged above the longitudinal feeding mechanism 4 , a tool mounting seat 6 arranged above the transverse feeding mechanism 5 , and a chamfering tool 7 arranged on the tool mounting seat 6 .

[0024] The longitudinal feeding mechanism 4 includes a longitudinal guide rail 402 arranged on the base 1 , a first feeding platform 401 slidably mounted on the longitudinal guide rail 402 , and a first screw mechanism 403 that drives the first feeding platform 401 to move.

[0025] The transverse feeding mechanism 5 includes a transverse guide rail 502 arranged on the first feeding platform 401 , a second feeding platform 501 slidably mounted on the transverse guide rail 502 , and a second screw mechanism 503 driving the second feeding platform 501 to move. The slide rail 8 is arranged on the second feeding platform 501 .

[0026] The moving direction of the first feeding platform 401 is the rotational axial direction of the chuck 3, and the moving path of the second feeding platform 501 is perpendicular to the moving path of the first feeding platform 401. The first screw mechanism 403 and the second screw mechanism 503 are both standard, and are composed of a ball screw, a screw nut and a driving motor.

[0027] A slide rail 8 is arranged above the second feeding platform 501 , and the slide rail 8 extends along the longitudinal feeding direction. The tool mounting seat 6 is movably mounted on the slide rail 8 , and a control mechanism 9 for controlling the movement or fixation of the tool mounting seat 6 is arranged between the tool mounting seat 6 and the slide rail 8 .

[0028] like Figure 3 As shown, the control mechanism 9 includes a rack 901 arranged on one side of the slide rail 8, ratchets 902 linearly distributed on the rack 901, a pawl 903 arranged on one side of the rack 901, and a handle 905 for driving the pawl 903 to move closer to or away from the rack 901. The ratchet 902 is inclined toward the chuck 3, one end of the pawl 903 is hinged on the tool mounting seat 6, and the other end is provided with a latch tooth 904, which is inserted between two adjacent ratchet teeth 902.

[0029] The handle 905 is rotatably mounted on the tool mounting seat 6, and a linkage assembly is connected between the handle 905 and the ratchet 903. The linkage assembly includes a screw rod 906 horizontally arranged in the tool mounting seat 6, a nut seat 907 threadedly mounted on the screw rod 906, a connecting rod 908 connected between the nut seat 907 and the ratchet 903, and a bevel gear set 909 connected between the handle 905 and the end of the screw rod 906. The two bevel gears of the bevel gear set 909 are respectively mounted on the handle 905 and the end of the screw rod 906 and mesh with each other. The tool mounting seat 6 has an installation cavity inside, and the ratchet 903, the screw rod 906, the nut seat 907, the connecting rod 908 and the bevel gear set 909 are all located in the installation cavity.

[0030] A return spring 910 is provided in the tool mounting seat 6 to drive the pawl 903 toward the rack 901. The return spring 910 is connected above the pawl 903 and pushes the pawl 903 downward through the elastic force.

[0031] A limit stopper 10 is disposed above the second feeding platform 501 , and the limit stopper 10 is located at one end of the tool mounting seat 6 close to the chuck 3 .

[0032] like Figure 4As shown, the ratchet 902 has an inclined first sliding surface 9021 and a first blocking surface 9022 located in the direction of the first sliding surface 9021 close to the chuck 3, and the latch tooth 904 has a second sliding surface 9041 with the same inclined direction as the first sliding surface 9021 and a second blocking surface 9042 parallel to the first blocking surface 9022.

[0033] In the processing state, the pawl 903 rests on the rack 901, and the latching tooth 904 at the end of the pawl 903 is inserted between two adjacent ratchet teeth 902. At this time, the pawl 903 cannot move forward or backward, so that the position of the tool mounting seat 6 is fixed. Among them, the pawl 903 is made of spring steel and has a certain elastic deformation ability. In this state, a large force is used to push the tool mounting seat 6 forward, and the pawl 903 is elastically deformed upward, so that the second sliding surface 9041 slides along the first sliding surface 9021, so that the tool mounting seat 6 can move forward.

[0034] When the processing is completed, the handle 905 is turned to make the nut seat 907 move backward along the screw rod 906, and the ratchet 903 is pulled upward by the connecting rod 908 to make the locking tooth 904 disengage from between the two adjacent ratchet teeth 902, and the tool mounting seat 6 can move forward and backward. At this time, the tool mounting seat 6 is quickly pulled backward for a certain distance to leave operating space for replacing the workpiece on the chuck 3, thereby increasing the speed of loading and unloading the workpiece.

Claims

1. A valve core chamfering processing device, comprising: A base (1), a spindle box (2) arranged at one end of the base (1), a chuck (3) arranged on the spindle box (2), and a chamfering mechanism arranged on one side of the chuck (3), characterized in that the chamfering mechanism comprises a longitudinal feed mechanism (4) arranged on the base (1), a transverse feed mechanism (5) arranged above the longitudinal feed mechanism (4), a tool mounting seat (6) arranged above the transverse feed mechanism (5), and a chamfering tool (7) arranged on the tool mounting seat (6), a slide rail (8) is arranged above the transverse feed mechanism (5), the slide rail (8) extends along the longitudinal feed direction, the tool mounting seat (6) is movably mounted on the slide rail (8), and a control mechanism (9) for controlling the movement or fixation of the tool mounting seat (6) is arranged between the tool mounting seat (6) and the slide rail (8).

2. A valve core chamfering processing device according to claim 1, characterized in that: The control mechanism (9) comprises a rack (901) arranged on one side of the slide rail (8), ratchets (902) linearly distributed on the rack (901), a pawl (903) arranged on one side of the rack (901), and a handle (905) for driving the pawl (903) to move closer to or away from the rack (901), wherein the ratchet (902) is inclined in a direction toward the chuck (3), one end of the pawl (903) is hinged on the tool mounting seat (6), and the other end is provided with a latching tooth (904), and the latching tooth (904) is inserted between two adjacent ratchets (902).

3. A valve core chamfering processing device according to claim 2, characterized in that: The ratchet (902) has an inclined first sliding surface (9021) and a first blocking surface (9022) located on the first sliding surface (9021) in a direction close to the chuck (3); the latching tooth (904) has a second sliding surface (9041) having the same inclined direction as the first sliding surface (9021) and a second blocking surface (9042) parallel to the first blocking surface (9022).

4. A valve core chamfering processing device according to claim 3, characterized in that: The handle (905) is rotatably mounted on the tool mounting seat (6), and a linkage assembly is connected between the handle (905) and the pawl (903).

5. A valve core chamfering processing device according to claim 4, characterized in that: The linkage assembly comprises a screw rod (906) horizontally arranged in the tool mounting seat (6), a nut seat (907) threadedly mounted on the screw rod (906), a connecting rod (908) connected between the nut seat (907) and the pawl (903), and a bevel gear set (909) connected between the handle (905) and the end of the screw rod (906).

6. A valve core chamfering processing device according to claim 5, characterized in that: A return spring (910) is arranged in the tool mounting seat (6) for driving the pawl (903) to lean against the rack (901).

7. A valve core chamfering processing device according to claim 1, characterized in that: A limit stopper (10) is provided above the transverse feeding mechanism (5), and the limit stopper (10) is located at one end of the tool mounting seat (6) close to the chuck (3).

8. A valve core chamfering processing device according to claim 1, characterized in that: The longitudinal feeding mechanism (4) comprises a longitudinal guide rail (402) arranged on the base (1), a first feeding platform (401) slidably mounted on the longitudinal guide rail (402), and a first screw mechanism (403) driving the first feeding platform (401) to move.

9. A valve core chamfering processing device according to claim 8, characterized in that: The transverse feeding mechanism (5) comprises a transverse guide rail (502) arranged on the first feeding platform (401), a second feeding platform (501) slidably mounted on the transverse guide rail (502), and a second screw mechanism (503) for driving the second feeding platform (501) to move, and the slide rail (8) is arranged on the second feeding platform (501).

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