High-precision automatic machining equipment for end face inner groove of contact seat

Abstract

The application relates to a high-precision end face inner groove automatic machining equipment for a contact seat, comprising a machine tool body, a chuck clamp, an X-Y axis driving platform, a tool tower assembly and a liquid spraying assembly, the chuck clamp is rotationally arranged on the machine tool body and used for clamping the contact seat, the tool tower assembly comprises a tool tower body, a driving member one, a plurality of cutters and a cutting assembly, the tool tower body is provided with a plurality of mounting columns, and the plurality of cutters are fixedly arranged on the mounting columns; the cutting assembly is provided with a cutting knife movably assembled on the mounting column, one end of the mounting column is formed with an edge, and the cutting end of the cutting knife is in shearing cooperation with the edge. The cutting assembly can cut off the continuous aluminum wire scraps generated in the machining process in real time, so that the aluminum scraps are prevented from winding around the mounting column or scratching the inner wall of the contact seat, thereby guaranteeing the size precision and surface smoothness of the inner hole groove. The liquid spraying assembly sprays cutting fluid to the machining area synchronously, further cools the cutters, washes away the cutting scraps, and improves the machining quality and the service life of the cutters.

Description

Technical Field

[0001] This invention relates to the field of contact seat processing equipment, and in particular to an automated processing equipment for high-precision precision machining of the inner groove of the end face of a contact seat. Background Technology

[0002] The contact holder is a basic component in electrical equipment used to fix and support the contacts. It provides mechanical support for electrical connections and ensures reliable circuit conduction.

[0003] Contact seat Figure 1 As shown, its inner hole has multiple inner hole grooves 11, and the inner hole grooves 11 with different cross sections are used to adapt the watch strap contacts and spring contacts respectively.

[0004] The machining of the inner groove directly affects the connection between the contact seat and the watch strap contacts and spring contacts. Poor dimensional accuracy and insufficient smoothness can lead to poor contact or loosening. Therefore, the dimensional accuracy and smoothness requirements of the inner groove are crucial during machining. During the machining of the inner groove, the cutting tool hooks onto the inner wall, generating continuous aluminum wire chips. If these chips are too long, they will engage in prolonged sliding friction with the inner groove through line or surface contact, essentially scraping the inner wall repeatedly with a metal wire. This can scratch the inner wall of the groove and may also entangle the cutting tool, affecting the dimensional accuracy of the inner groove. Summary of the Invention

[0005] In order to reduce the impact of aluminum wire chips on the cutting tool and the accuracy of the inner groove during the machining process, this application provides an automated machining equipment for high-precision precision turning of the inner groove of the contact seat end face.

[0006] The automated machining equipment for high-precision precision machining of the inner groove of the end face of the contact seat provided in this application adopts the following technical solution:

[0007] An automated machining equipment for high-precision machining of the inner groove of the end face of a contact seat includes a machine tool body, a chuck fixture, an XY-axis drive platform, a turret assembly, and a liquid spraying assembly. The chuck fixture is rotatably mounted on the machine tool body for holding the contact seat. The turret assembly is mounted on the XY-axis drive platform, which is also mounted on the machine tool body for driving the turret assembly to move along the XY-axis. The turret assembly includes a turret body, a drive component, several cutting tools, and a cutting assembly. The turret body is rotatably mounted on the XY-axis drive platform, and the drive component drives the turret body to rotate. Several mounting posts are sequentially protruded circumferentially on the side of the turret body facing the chuck fixture, and several cutting tools are respectively fixedly mounted on these mounting posts. The cutting assembly has a cutting blade movably mounted on the mounting posts. A cutting edge is formed at the end of the mounting post away from the cutting tool, and the cutting end of the cutting blade forms a shearing engagement with the cutting edge to cut continuous aluminum wire chips generated during machining. The liquid spraying assembly is mounted on the turret body for spraying cutting fluid into the inner hole of the contact seat.

[0008] By adopting the above technical solution, the cutting tool is fixed on the mounting post and precisely fed through the XY-axis driven platform. Combined with the rotation of the chuck fixture, high-precision machining of the contact seat end face and inner groove can be efficiently completed. The cutting component can cut the continuous aluminum wire chips generated during machining in real time, preventing aluminum chips from entangled in the mounting post or scratching the inner wall of the contact seat, thereby ensuring the dimensional accuracy and surface finish of the inner groove. The liquid spraying component simultaneously sprays cutting fluid into the machining area to further cool the cutting tool, flush away chips, and improve machining quality and tool life.

[0009] Preferably, the cutting assembly further includes a drive selection component and several actuators, each actuator corresponding to several mounting posts. Each actuator includes a first piston, a second piston, and a rotating shaft. A first track and a second track are arranged side by side within each mounting post. The first piston and the second piston are slidably connected within the first track and the second track, respectively, along a direction parallel to the rotation axis of the turret body. The rotating shaft is rotatably connected within the first piston. A groove is formed on the second piston, and a toothed surface is formed on the bottom wall of the groove. One end of the rotating shaft extends into the groove and is coaxially fixed with a gear, which meshes with the toothed surface. The other end of the rotating shaft extends out of the mounting post and is fixedly connected to the cutting blade. The drive selection component is used to select the corresponding mounting post and can drive the second piston within the mounting post to move independently or drive the first piston and the second piston within the mounting post to move synchronously.

[0010] By adopting the above technical solution, the drive selection component can independently control the action of the corresponding cutting blade for the mounting post where the currently used cutting tool is located. When the first piston and the second piston move synchronously, the cutting blade stops rotating, and the position of the first piston changes, which in turn changes the position of the rotating shaft and the cutting blade, thereby changing the cutting range within the contact seat. When the first piston stops moving and only the second piston is driven to move back and forth, the cutting blade can be controlled to rotate back and forth through the cooperation of the gear and the tooth surface, thereby forming a shearing action with the blade at the end of the mounting post.

[0011] Preferably, it further includes a three-way valve one, a three-way valve two, a first main pipe, and a second main pipe. The two ends of the first main pipe are a first end and a second end, respectively, and the two ends of the second main pipe are a third end and a fourth end, respectively. The first end and the third end are located on the same side of the first piston and the second piston. The first end, the second end, the third end, and the fourth end extend to penetrate the turret body. The main pipe of the three-way valve one is connected to the first main pipe, and the two branches of the three-way valve one are connected to the first end and the third end, respectively. The first main pipe and the third end are always connected. The three-way valve one can control the opening and closing of the first end and the first main pipe.

[0012] The main channel of the three-way valve two is connected to the second main pipe, and the two branch channels of the three-way valve two are respectively connected to the second end and the fourth end. The second main pipe and the fourth end are always connected. The three-way valve two can control the opening and closing of the second end and the second main pipe.

[0013] The first channel, the second channel, the first main pipe, and the second main pipe are all filled with oil. The drive selection component controls the direction and pressure of the oil in the first and second main pipes to achieve the individual movement of the second piston in the corresponding mounting column or the synchronous movement of the first and second pistons.

[0014] By adopting the above technical solution, there is no distinction between the first and second manifolds; the direction of movement of the first and second pistons determines which is the inlet and which is the outlet. When the first manifold is the inlet and the second manifold is the outlet, if three-way valve one controls the first manifold to be connected to the first end and three-way valve two controls the second manifold to be connected to the second end, oil enters the first manifold and exits the second manifold, and the first and second pistons can move synchronously. If three-way valve one controls the first manifold to be disconnected from the first end and three-way valve two controls the second manifold to be disconnected from the second end, the second piston can move back and forth to allow oil to enter and exit the first and second manifolds.

[0015] Preferably, the drive selection component includes a first distribution valve, a second distribution valve, a reversing valve, and a pump assembly. A plurality of first main pipes are respectively connected to a plurality of distribution ports of the first distribution valve, and a plurality of second main pipes are respectively connected to a plurality of distribution ports of the second distribution valve. The pressure port and return port of the reversing valve are connected to the pump assembly. The two working ports of the reversing valve are respectively connected to the main ports of the first and second distribution valves. The first distribution valve is used to select the first main pipe corresponding to the mounting post, and the second distribution valve is used to select the second main pipe corresponding to the mounting post. The reversing valve is used to switch the oil flow direction.

[0016] By adopting the above technical solution, the first distribution valve is used to select the connection between the main port and one of the first main pipes, the second distribution valve is used to select the connection between the main port and one of the second main pipes, and the reversing valve is used to control the oil inlet and outlet directions of the two main ports of the first and second distribution valves, which, together with the oil pump assembly, provide stable oil pressure. This integrated hydraulic control method realizes independent selection and control of multi-station cutting blades and action switching, improves the automation level of the equipment, reduces mechanical transmission parts, simplifies maintenance, and ensures stable operation.

[0017] Preferably, the cutting blade is located at two ends of the rotating shaft, namely a long end and a short end. The long end is used for cutting. A first magnet is provided inside the mounting post, and a second magnet is provided inside the short end. The first magnet and the second magnet repel each other.

[0018] By adopting the above technical solution, the repulsive force between the first magnet and the second magnet ensures that the short end of the cutting blade is always pushed away from the mounting post, thereby keeping the long end (cutting end) in contact with the blade at the end of the mounting post.

[0019] Preferably, the mounting post has a mounting groove on one end face near the contact seat, and the first magnet is interference-fitted into the mounting groove.

[0020] By adopting the above technical solution, the first magnet is fixed in the mounting groove with an interference fit, which is secure and does not require additional fasteners, resulting in a simple structure.

[0021] Preferably, the liquid spraying assembly includes a liquid pump and a diversion valve, the inlet and outlet of the liquid pump being connected to the cutting fluid and the inlet of the diversion valve, respectively; the turret body has a plurality of liquid spraying channels, each corresponding to a plurality of mounting columns, one end of each liquid spraying channel facing the contact seat, and the other end of each liquid spraying channel being connected to a plurality of outlets of the diversion valve, respectively.

[0022] By adopting the above technical solution, the fluid pump distributes the cutting fluid to the corresponding spray channels through a diversion valve, and then sprays it directionally to the machining area of ​​the corresponding tool. This ensures that all machining points receive sufficient cooling and lubrication, effectively flushes away chips, reduces heat accumulation, and thus improves the surface finish and tool durability.

[0023] The main technical effects of this invention are reflected in the following aspects:

[0024] 1. The cutting tool of this invention is fixed on the mounting post and achieves precise feeding through the XY-axis driven platform. Combined with the rotation of the chuck fixture, it can efficiently complete high-precision machining of the contact seat end face and inner groove. The cutting component can cut the continuous aluminum wire chips generated during the machining process in real time, avoiding aluminum chips from wrapping around the mounting post or scratching the inner wall of the contact seat, thereby ensuring the dimensional accuracy and surface finish of the inner groove. The liquid spraying component simultaneously sprays cutting fluid into the machining area to further cool the tool, flush away chips, and improve machining quality and tool life;

[0025] 2. The drive selection component of this invention can independently control the action of the corresponding cutting blade for the mounting post where the currently used cutting tool is located. When the first piston and the second piston move synchronously, the cutting blade stops rotating, and the position of the first piston changes, which in turn changes the position of the rotating shaft and the cutting blade, thereby changing the cutting range within the contact seat; when the first piston stops moving and only the second piston is driven to move back and forth, the cutting blade can be controlled to rotate back and forth through the cooperation of the gear and the tooth surface, thereby forming a shearing action with the blade at the end of the mounting post. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the contact seat structure of this application.

[0027] Figure 2 This is a schematic diagram of the overall structure of an embodiment of this application.

[0028] Figure 3 This is a schematic diagram of the overall structure of the turret component in an embodiment of this application.

[0029] Figure 4 This is a structural schematic diagram of the mounting column and cutting assembly according to an embodiment of this application.

[0030] Figure 5 It is along Figure 4 A cross-sectional view along line AA in the middle.

[0031] Figure 6 It is along Figure 4 A cross-sectional view along the BB line.

[0032] Figure 7 It is along Figure 4 A cross-sectional view of the CC line.

[0033] Figure 8 It is along Figure 4 A cross-sectional view of the DD line.

[0034] Figure 9 This is a schematic diagram showing the connection between three-way valve one and three-way valve two in an embodiment of this application.

[0035] Figure 10 This is an assembly diagram of the internal column cutting assembly.

[0036] Figure 11 This is a schematic diagram of the driver selection component in an embodiment of this application.

[0037] Explanation of reference numerals in the attached drawings: 1. Contact seat; 11. Inner groove; 2. Machine tool body; 3. Chuck fixture; 4. XY axis drive platform; 5. Turret assembly; 51. Turret body; 52. Mounting post; 521. First pass; 5211. First end; 5212. Second end; 522. Second pass; 5221. Third end; 5222. Fourth end; 5231. Three-way valve one; 5241. Three-way valve two; 525. First main pipe; 526. Second main pipe; 527. Mounting groove; 5 28. First magnet; 529. Second magnet; 530. Blade; 53. Cutting tool; 54. First piston; 55. Second piston; 551. Groove; 552. Toothed surface; 56. Shaft; 561. Gear; 57. Cutting blade; 61. First distribution valve; 62. Second distribution valve; 63. Reversing valve; 64. Oil pump; 65. Oil reservoir; 66. Throttle valve; 67. Filter; 68. Overflow valve; 71. Block; 72. Bearing; 73. Waist-shaped groove; 81. Spray channel; Detailed Implementation

[0038] The following is in conjunction with the appendix Figures 1-11 This application will be described in further detail to make the technical solution of this application easier to understand and master.

[0039] This application discloses an automated machining equipment for high-precision machining of the inner groove of the end face of a contact seat.

[0040] Reference Figures 1-4This embodiment of an automated machining equipment for high-precision machining of the inner groove of the end face of a contact seat includes a machine tool body 2, a chuck fixture 3, an XY-axis drive platform 4, a turret assembly 5, and a liquid spraying assembly. The chuck fixture 3 is rotatably mounted on the machine tool body 2 and is used to clamp the contact seat 1. The turret assembly 5 is mounted on the XY-axis drive platform 4, which is mounted on the machine tool body 2 and is used to drive the turret assembly 5 to move along the XY-axis. The turret assembly 5 includes a turret body 51, a drive component, several cutting tools 53, and a cutting assembly. The turret body 51 is rotatably mounted on the XY-axis drive platform 4. A drive unit drives the turret body 51 to rotate. The turret body 51 has a plurality of mounting posts 52 protruding in sequence along the circumference on the side facing the chuck fixture 3. A plurality of cutting tools 53 are fixedly mounted on the mounting posts 52. The cutting assembly has a cutting blade 57 movably mounted on the mounting posts 52. The end of the mounting post 52 away from the cutting tool 53 has a cutting edge 530. The cutting end of the cutting blade 57 and the cutting edge 530 form a shearing engagement relationship to cut the continuous aluminum wire chips generated during the processing. The liquid spraying assembly is provided on the turret body 51 and is used to spray cutting fluid into the inner hole of the contact seat 1.

[0041] Reference Figures 1-4 The cutting tool 53 is locked to the mounting post 52 by screws and is precisely fed by the XY axis driven platform 4. Combined with the rotation of the chuck fixture 3, it can efficiently complete the high-precision machining of the end face and inner groove of the contact seat 1. The cutting component can cut the continuous aluminum wire chips generated during the machining process in real time, avoiding aluminum chips from wrapping around the mounting post 52 or scratching the inner wall of the contact seat 1, thereby ensuring the dimensional accuracy and surface finish of the inner groove 11. The liquid spraying component simultaneously sprays cutting fluid into the machining area to further cool the cutting tool 53, flush away chips, and improve machining quality and tool life.

[0042] Reference Figures 1-4 Both the drive unit 1 and the drive chuck fixture 3 are driven by motors. The turret body 51 rotates to change tools and cut different internal grooves 11. The rotation of the chuck fixture 3 drives the contact seat 1 to rotate, thereby cooperating with the tool 53 to machine the internal grooves 11. The XY axis drive platform 4 consists of multiple drive slides connected to each other, which can drive the turret assembly 5 to move in the X and Y axis directions. The X-axis direction is parallel to the axis of the chuck fixture 3.

[0043] Reference Figures 3-11The cutting assembly also includes a drive selection component and several actuators. The actuators correspond to several mounting posts 52. The actuators include a first piston 54, a second piston 55, and a rotating shaft 56. A first track 521 and a second track 522 are arranged side by side in the mounting posts 52. The first piston 54 and the second piston 55 are slidably connected in the first track 521 and the second track 522 respectively along the rotation axis parallel to the turret body 51. Both ends of the first piston 54 and the second piston 55 are equipped with sealing rings to ensure the sealing performance during their reciprocating movement in the corresponding first track 521 and second track 522. The rotating shaft 56 is rotatably connected to the first piston 54 via a bearing 72. A groove 551 is formed on the second piston 55, and a toothed surface 552 is formed on the bottom wall of the groove 551. One end of the rotating shaft 56 extends into the groove 551 and is coaxially fixed with a gear 561, which meshes with the toothed surface 552. The other end of the rotating shaft 56 extends out of the mounting post 52 and is fixedly connected to the cutting blade 57 with screws. The rotating shaft 56 has a sealing ring that seals the bearing 72 from the outside environment. A waist-shaped groove 73 is formed in the mounting post 52 for the rotating shaft 56 to move. The waist-shaped groove 73 is always blocked when the first piston 54 and the second piston 55 move, preventing oil from entering the waist-shaped groove 73. The drive selection component is used to select the corresponding mounting post 52 and can drive the second piston 55 in the mounting post 52 to move independently or drive the first piston 54 and the second piston 55 in the mounting post 52 to move synchronously.

[0044] Reference Figures 3-11 The drive selection component can independently control the movement of the corresponding cutting blade 57 for the mounting post 52 where the currently used cutting tool 53 is located. When the first piston 54 and the second piston 55 move synchronously, the cutting blade 57 stops rotating. The position of the first piston 54 changes, which in turn changes the position of the rotating shaft 56 and the cutting blade 57, thereby changing the cutting range within the contact seat 1. When the first piston 54 stops moving and only the second piston 55 is driven to move back and forth, the cutting blade 57 can be controlled to rotate back and forth through the cooperation of the gear 561 and the tooth surface 552, thereby forming a shearing action with the blade 530 at the end of the mounting post 52.

[0045] Reference Figures 3-10, it further includes a three-way valve 1 5231, a three-way valve 2 5241, a first main pipe 525, and a second main pipe 526. The two ends of the first channel 521 are respectively a first end 5211 and a second end 5212, and the two ends of the second channel 522 are respectively a third end 5221 and a fourth end 5222. The first end 5211 and the third end 5221 are on the same side of the first piston 54 and the second piston 55, and the second end 5212 and the fourth end 5222 are on the same side of the first piston 54 and the second piston 55. The first end 5211, the second end 5212, the third end 5221, and the fourth end 5222 respectively extend to penetrate through the turret body 51. The main channel of the three-way valve 1 5231 is connected to the first main pipe 525, and the two branch channels of the three-way valve 1 5231 are respectively connected to the first end 5211 and the third end 5221. The first main pipe 525 and the third end 5221 are always kept connected, and the three-way valve 1 5231 can control the on-off between the first end 5211 and the first main pipe 525.

[0046] Refer to Figures 3-10 , the main channel of the three-way valve 2 5241 is connected to the second main pipe 526, and the two branch channels of the three-way valve 2 5241 are respectively connected to the second end 5212 and the fourth end 5222. The second main pipe 526 and the fourth end 5222 are always kept connected, and the three-way valve 2 5241 can control the on-off between the second end 5212 and the second main pipe 526.

[0047] Refer to Figures 3-10 , the first channel 521, the second channel 522, the first main pipe 525, and the second main pipe 526 are all filled with oil. The driving selection component controls the inlet and outlet direction and pressure of the oil in the first main pipe 525 and the second main pipe 526 to achieve the independent movement of the second piston 55 in the corresponding mounting column 52 or the synchronous movement of the first piston 54 and the second piston 55.

[0048] Refer to Figures 3-10 , both the first channel 521 and the second channel 522 are composed of three holes and grooves. The end of the hole and groove communicating with the outside is blocked by a plug 71, thereby forming a "C"-shaped channel of the first channel 521 and the second channel 522.

[0049] Refer to Figures 3-10The first manifold 525 and the second manifold 526 do not have inlet / outlet distinctions. The direction of movement of the first piston 54 and the second piston 55 determines which is the inlet and which is the outlet. When the first manifold 525 is the inlet and the second manifold 526 is the outlet, if the three-way valve 1 5231 controls the connection between the first manifold 525 and the first end 5211, and the three-way valve 2 5241 controls the connection between the second manifold 526 and the second end 5212, oil enters the first manifold 525 and exits the second manifold 526, and the first piston 54 and the second piston 55 can move synchronously. If the three-way valve 1 5231 controls the disconnection between the first manifold 525 and the first end 5211, and the three-way valve 2 5241 controls the disconnection between the second manifold 526 and the second end 5212, then the second piston 55 can move back and forth between the inlet and outlet of the first manifold 525 and the second manifold 526.

[0050] Reference Figures 7-11 The drive selection component includes a first distribution valve 61, a second distribution valve 62, a reversing valve 63, and a pump assembly. A plurality of first main pipes 525 are respectively connected to a plurality of distribution ports of the first distribution valve 61, and a plurality of second main pipes 526 are respectively connected to a plurality of distribution ports of the second distribution valve 62. The pressure port and return port of the reversing valve 63 are connected to the pump assembly, and the two working ports of the reversing valve 63 are respectively connected to the main port of the first distribution valve 61 and the main port of the second distribution valve 62. The first distribution valve 61 is used to select the first main pipe 525 corresponding to the mounting post 52, and the second distribution valve 62 is used to select the second main pipe 526 corresponding to the mounting post 52. The reversing valve 63 is used to switch the oil flow direction.

[0051] Reference Figures 7-11 The first distribution valve 61 is used to select the connection between the main port and one of the first main pipes 525, and the second distribution valve 62 is used to select the connection between the main port and one of the second main pipes 526. The reversing valve 63 is used to control the oil inlet and outlet directions of the two main ports of the first distribution valve 61 and the second distribution valve 62, and together with the oil pump assembly, provides stable oil pressure. This integrated hydraulic control method realizes independent selection and control and action switching of the multi-station cutting blade 57, improves the automation level of the equipment, reduces mechanical transmission parts, simplifies maintenance, and ensures stable operation.

[0052] Reference Figure 11 The oil pump assembly comprises an oil pump 64, an oil reservoir 65, a throttle valve 66, a filter 67, a relief valve 68, and several connecting pipes, as shown in the figure. The oil pump assembly can also adopt any conventional hydraulic power unit structure that meets the pressure and flow requirements of the equipment's hydraulic system, as long as it can stably provide the required hydraulic power to the drive components.

[0053] Reference Figure 4 and Figure 7The cutting blade 57 is located at both ends of the rotating shaft 56, which are long ends and short ends of different lengths. The long end is used for cutting. The mounting post 52 is equipped with a first magnet 528, and the short end is equipped with a second magnet 529. The first magnet 528 and the second magnet 529 repel each other.

[0054] Reference Figure 4 and Figure 7 The repulsive force between the first magnet 528 and the second magnet 529 causes the short end of the cutting blade 57 to always be pushed away from the mounting post 52, thereby keeping the long end (cutting end) in contact with the blade 530 at the end of the mounting post 52.

[0055] Reference Figure 4 and Figure 7 The mounting post 52 has a mounting groove 527 on one end face near the contact seat 1, and the first magnet 528 is interference-fitted into the mounting groove 527. The first magnet 528 is fixed in the mounting groove 527 by interference fit, which is secure and does not require additional fasteners, resulting in a simple structure.

[0056] Reference Figure 3 The liquid spraying assembly includes a liquid pump and a diversion valve. The inlet and outlet of the liquid pump are connected to the inlet of the cutting fluid and the inlet of the diversion valve, respectively. The turret body 51 has several liquid spraying channels 81, each corresponding to a number of mounting posts 52. One end of each liquid spraying channel 81 faces the contact seat 1, and the other end of each liquid spraying channel 81 is connected to a number of outlets of the diversion valve. Since the liquid pump and diversion valve are existing technologies, they will not be described in detail here.

[0057] Reference Figure 3 The fluid pump distributes the cutting fluid to the corresponding spray channel 81 through the diversion valve, and then sprays it directionally to the machining area of ​​the corresponding tool 53 through the spray channel 81. This ensures that the machining point receives sufficient cooling and lubrication, effectively flushes away chips, reduces heat accumulation, and thus improves the surface quality of the machined part and the durability of the tool 53.

[0058] Of course, the above are just typical examples of this application. In addition, this application may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed in this application.

Claims

1. An automated machining equipment for high-precision machining of the inner groove of the end face of a contact seat, characterized in that: The system includes a machine tool body (2), a chuck fixture (3), an XY-axis drive platform (4), a turret assembly (5), and a liquid spraying assembly. The chuck fixture (3) is rotatably mounted on the machine tool body (2) and is used to clamp the contact seat (1). The turret assembly (5) is mounted on the XY-axis drive platform (4), which is used to drive the turret assembly (5) to move along the XY-axis. The turret assembly (5) includes a turret body (51), a drive component, several cutting tools (53), and a cutting assembly. The turret body (51) is rotatably mounted on the XY-axis drive platform (4), and the drive component drives the turret body. (51) Rotate, and the turret body (51) facing the chuck clamp (3) has a number of mounting posts (52) protruding in sequence along the circumference. A number of cutting tools (53) are fixedly mounted on the mounting posts (52). The cutting assembly has a cutting blade (57) movably mounted on the mounting post (52). The end of the mounting post (52) away from the cutting tool (53) has a cutting edge (530). The cutting end of the cutting blade (57) and the cutting edge (530) form a shearing engagement relationship to cut the continuous aluminum wire chips generated during the processing. The liquid spraying assembly is set on the turret body (51) and is used to spray cutting fluid into the inner hole of the contact seat (1).

2. The automated machining equipment for high-precision machining of the inner groove of the contact seat end face according to claim 1, characterized in that: The cutting assembly further includes a drive selection component and several actuators, each actuator corresponding to several mounting posts (52). Each actuator includes a first piston (54), a second piston (55), and a rotating shaft (56). A first track (521) and a second track (522) are arranged side-by-side within each mounting post (52). The first piston (54) and the second piston (55) are slidably connected within the first track (521) and the second track (522) respectively, along a direction parallel to the rotation axis of the turret body (51). The rotating shaft (56) is rotatably connected within the first piston (54). The second piston (55) has a... The groove (551) has a toothed surface (552) formed on its bottom wall. One end of the rotating shaft (56) extends into the groove (551) and is coaxially fixed with a gear (561). The gear (561) meshes with the toothed surface (552). The other end of the rotating shaft (56) extends out of the mounting post (52) and is fixedly connected to the cutting blade (57). The drive selection component is used to select the corresponding mounting post (52) and can drive the second piston (55) in the mounting post (52) to move independently or drive the first piston (54) in the mounting post (52) and the second piston (55) to move synchronously.

3. The automated machining equipment for high-precision machining of the inner groove of the contact seat end face according to claim 2, characterized in that: It also includes a three-way valve one (5231), a three-way valve two (5241), a first main pipe (525), and a second main pipe (526). The two ends of the first main pipe (521) are a first end (5211) and a second end (5212), respectively. The two ends of the second main pipe (522) are a third end (5221) and a fourth end (5222), respectively. The first end (5211) and the third end (5221) are located on the same side of the first piston (54) and the second piston (55); the first end (5211), the second end... (5212), the third end (5221) and the fourth end (5222) extend to the penetrating turret body (51) respectively. The main channel of the three-way valve (5231) is connected to the first main pipe (525). The two branches of the three-way valve (5231) are connected to the first end (5211) and the third end (5221) respectively. The first main pipe (525) and the third end (5221) are always connected. The three-way valve (5231) can control the opening and closing of the first end (5211) and the first main pipe (525). The main channel of the three-way valve two (5241) is connected to the second main pipe (526), ​​and the two branches of the three-way valve two (5241) are respectively connected to the second end (5212) and the fourth end (5222). The second main pipe (526) and the fourth end (5222) are always connected. The three-way valve two (5241) can control the opening and closing of the second end (5212) and the second main pipe (526). The first channel (521), the second channel (522), the first main pipe (525), and the second main pipe (526) are all filled with oil. The drive selection component controls the direction and pressure of the oil in the first main pipe (525) and the second main pipe (526) to realize the individual movement of the second piston (55) in the corresponding mounting column (52) or the synchronous movement of the first piston (54) and the second piston (55).

4. The automated machining equipment for high-precision machining of the inner groove of the contact seat end face according to claim 3, characterized in that: The drive selection component includes a first distribution valve (61), a second distribution valve (62), a reversing valve (63), and a pump assembly. A plurality of first main pipes (525) are respectively connected to a plurality of distribution ports of the first distribution valve (61), and a plurality of second main pipes (526) are respectively connected to a plurality of distribution ports of the second distribution valve (62). The pressure port and return port of the reversing valve (63) are connected to the pump assembly. The two working ports of the reversing valve (63) are respectively connected to the main port of the first distribution valve (61) and the main port of the second distribution valve (62). The first distribution valve (61) is used to select the first main pipe (525) of the corresponding mounting post (52), and the second distribution valve (62) is used to select the second main pipe (526) of the corresponding mounting post (52). The reversing valve (63) is used to switch the oil flow direction.

5. The automated machining equipment for high-precision machining of the inner groove of the contact seat end face according to claim 1, characterized in that: The cutting blade (57) is located at the long end and the short end at the two ends of the rotating shaft (56). The long end is used for cutting. The mounting post (52) is provided with a first magnet (528) and the short end is provided with a second magnet (529). The first magnet (528) and the second magnet (529) repel each other.

6. The automated machining equipment for high-precision machining of the inner groove of the contact seat end face according to claim 5, characterized in that: The mounting post (52) has a mounting groove (527) on one end face near the contact seat (1), and the first magnet (528) is interference-fitted in the mounting groove (527).

7. The automated machining equipment for high-precision machining of the inner groove of the contact seat end face according to claim 1, characterized in that: The liquid spraying assembly includes a liquid pump and a diversion valve. The inlet and outlet of the liquid pump are respectively connected to the cutting fluid and the liquid inlet of the diversion valve. The turret body (51) has a plurality of liquid spraying channels (81). The plurality of liquid spraying channels (81) correspond to a plurality of mounting columns (52). One end of the plurality of liquid spraying channels (81) faces the contact seat (1), and the other end of the plurality of liquid spraying channels (81) is respectively connected to a plurality of outlets of the diversion valve.

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