Double-end milling machine for wrench processing

Abstract

The application relates to a double-end milling machine for wrench machining, which comprises a base provided with a drag plate in the middle, and machining units are oppositely arranged on the base and located on the two sides of the drag plate, characterized in that the machining unit comprises an XY shaft driving mechanism arranged above the base and a milling mechanism arranged above the XY shaft driving mechanism; a feeding unit is arranged at the bottom of the drag plate, and a clamping unit is arranged on the drag plate and used for clamping the wrench blank, the cooperation of the drag plate, the machining unit, the feeding unit and the clamping unit can realize the milling machining of the two side surfaces of the wrench blank at the same time, the turning operation is not needed, the machining time is greatly shortened, and the production efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of wrench processing technology, and in particular to a double-head milling machine for wrench processing. Background Technology

[0002] In the manufacturing process of wrenches, the wrench blank needs to go through multiple processing steps. Among them, the milling of the two sides of the wrench using a milling machine is a key step. This processing step aims to make the wrench blank reach the surface quality required by the design and ensure that the final wrench can meet the functional standards.

[0003] However, some milling machines currently on the market can typically only mill one side of the wrench blank during the milling process. In practice, the worker must first place the wrench blank on the milling machine, complete the milling of one side, then flip it over to mill the other side. Each flipping requires additional time, plus potential repositioning time due to improper operation. In mass production, these seemingly minor time losses accumulate into significant time costs, leading to extended production cycles and impacting production efficiency.

[0004] To address the aforementioned problems, a double-head milling machine for wrench processing is now designed. Utility Model Content

[0005] This application provides a double-head milling machine for wrench processing, which solves the problem in related technologies that some milling machines can usually only mill one side of the wrench blank during the wrench milling process, thus affecting production efficiency.

[0006] In a first aspect, a double-head milling machine for wrench processing is provided, comprising: A base, in which a slide is provided in the middle, and processing units located on both sides of the slide are arranged opposite each other on the base. The processing unit is characterized in that the processing unit includes an XY axis drive mechanism arranged above the base and a milling mechanism arranged above the XY axis drive mechanism. The XY axis drive mechanism is used to drive the milling mechanism to move along the X-axis or Y-axis, and the milling mechanism is used to perform milling processing on the side of the wrench blank. The bottom of the slide plate is provided with a feeding unit, and the slide plate is provided with a clamping unit. The clamping unit is used to clamp the wrench blank, and the feeding unit is used to drive the slide plate to move along the Y-axis.

[0007] In some embodiments, a recycling mechanism is provided in the middle of the base; The recycling mechanism includes a box located in the middle of the base, with support blocks arranged opposite each other inside the box, and the feeding unit located between the tops of the two support blocks. The two support blocks are tilted downwards on opposite sides, and multiple discharge ports are provided on one side of the box.

[0008] In some embodiments, the feeding unit includes a frame disposed between two support blocks. The frame is rectangular and has a through hole in its middle. Two slide rails are disposed opposite to each other on the frame. Multiple sliders are slidably disposed on the slide rails. The slide plate is disposed between the tops of the multiple sliders. One end of the frame is provided with a bearing seat, and a lead screw is rotatably installed in the bearing seat. The other end of the frame is provided with a drive motor and a reducer. The output shaft of the drive motor is connected to the input shaft of the reducer, and the output shaft of the reducer is connected to the other end of the lead screw. The lead screw is threaded to a movable cylinder, and a transmission block is provided on the movable cylinder. The transmission block is connected to the slide plate.

[0009] In some embodiments, the clamping unit includes a base plate disposed opposite to the slide plate, an electric push rod disposed above the base plate, a feeding platform disposed between the piston rod tips of the two electric push rods, a pneumatic gripper disposed above the feeding platform, the pneumatic gripper being used to clamp the wrench blank, and the electric push rod being used to drive the feeding platform to move up and down along the Z-axis.

[0010] In some embodiments, the XY axis drive mechanism includes an electric linear slide rail disposed in the base and a slide table slidably disposed above the base. The electric linear slide rail and the slide table are arranged along the length of the base. The electric linear slide rail is connected to the slide table and is used to drive the slide table to move along the X axis. The XY axis drive mechanism further includes a second electric linear slide rail disposed on a slide table one, and a slide table two slidably disposed on the second electric linear slide rail. The second electric linear slide rail and the slide table two move along the width of the base. The second electric linear slide rail is connected to the slide table two and is used to drive the slide table two to move along the Y axis.

[0011] In some embodiments, the milling mechanism includes a housing disposed on the slide table 2, the housing being L-shaped, a rotating shaft being rotatably disposed inside the housing, the end of the rotating shaft near the slide plate extending outward, a milling head being disposed at the outwardly extending end of the rotating shaft, and a milling cutter being disposed on the milling head; A second drive motor is provided on the housing. The output shaft of the second drive motor extends into the housing. Both the output shaft of the second drive motor and the other end of the rotating shaft are provided with pulleys. The two pulleys are connected by belt drive.

[0012] This application provides a double-head milling machine for wrench processing. Through the coordinated use of the slide, processing unit, feeding unit and clamping unit, it can simultaneously mill both sides of the wrench blank without the need for flipping, thus shortening the processing time and improving production efficiency.

[0013] Through the coordinated operation of the feeding unit, clamping unit, XY axis drive mechanism and milling mechanism, the wrench blank is processed from clamping, feeding, positioning to milling, reducing manual intervention and labor intensity. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A three-dimensional structural illustration provided for an embodiment of this application. Figure 1 ; Figure 2 A three-dimensional structural illustration provided for an embodiment of this application. Figure 2 ; Figure 3 A three-dimensional schematic diagram of the connection structure between the recycling mechanism and the feeding unit provided in the embodiments of this application. Figure 1 ; Figure 4 Left view of the feeding unit provided in the embodiment of this application; Figure 5 A three-dimensional schematic diagram of the connection structure between the recycling mechanism and the feeding unit provided in the embodiments of this application. Figure 2 ; Figure 6 This is a three-dimensional schematic diagram of the processing unit provided in the embodiments of this application; Figure 7 This is a front sectional view of the milling mechanism provided in the embodiments of this application.

[0016] In the diagram: 1. Base; 2. Slide plate; 3. Machining unit; 31. XY axis drive mechanism; 32. Milling mechanism; 311. Electric linear slide rail; 312. Slide table one; 313. Second electric linear slide rail; 314. Slide table two; 321. Housing; 322. Rotating shaft; 323. Milling head; 324. Milling cutter; 325. Drive motor two; 326. Pulley; 327. Belt; 4. Feeding unit; 41. Frame; 42. Slide rail; 43. Slider; 44. Bearing seat; 45. Lead screw; 46. Drive motor; 47. Reducer; 48. Moving cylinder; 49. Transmission block; 5. Clamping unit; 51. Base plate; 52. Electric push rod; 53. Unloading platform; 54. Pneumatic gripper; 6. Recycling mechanism; 61. Box; 62. Support block; 63. Discharge port. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] This application provides a double-head milling machine for wrench processing, which can solve the problem in related technologies where some milling machines can only mill one side of the wrench blank during the wrench milling process, thus affecting production efficiency.

[0019] Please see Figures 1-3 A double-head milling machine for wrench processing includes: a base 1, a slide 2 disposed in the middle of the base 1, and processing units 3 disposed opposite each other on the two sides of the slide 2. The processing unit 3 includes an XY axis drive mechanism 31 disposed above the base 1 and a milling mechanism 32 disposed above the XY axis drive mechanism 31. The XY axis drive mechanism 31 is used to drive the milling mechanism 32 to move along the X-axis or Y-axis, and the milling mechanism 32 is used to mill the side of the wrench blank. The bottom of the slide plate 2 is provided with a feeding unit 4, and the slide plate 2 is provided with a clamping unit 5. The clamping unit 5 is used to clamp the wrench blank, and the feeding unit 4 is used to drive the slide plate 2 to move along the Y-axis.

[0020] It should be noted that the length of base 1 is the X-axis, the width of base 1 is the Y-axis, and the height of base 1 is the Z-axis.

[0021] The wrench blank is placed on the clamping unit 5 on the slide plate 2. The clamping unit 5 is activated to firmly clamp the wrench blank, ensuring that the workpiece will not be displaced during subsequent processing and guaranteeing processing accuracy.

[0022] The feeding unit 4 starts working, driving the slide 2 to move along the Y-axis. The feeding unit 4 accurately transports the clamped wrench blank to the processing position, so that the side of the wrench blank corresponds to the milling mechanism 32 in the processing unit 3 located on both sides of the slide 2.

[0023] The XY axis drive mechanism 31 can drive the milling mechanism 32 above it to move along the X-axis or Y-axis according to the processing requirements. Through the coordinated movement of the X-axis and Y-axis, the position of the milling mechanism 32 can be precisely adjusted so that the milling cutter on the milling mechanism 32 can accurately reach the side position of the wrench blank that needs to be processed.

[0024] Once the milling mechanism 32 reaches the designated position, it starts, and the milling cutter rotates at high speed to mill the sides of the wrench blank. Since the base 1 has machining units 3 located on both sides of the slide 2, the two machining units 3 can simultaneously mill both sides of the wrench blank.

[0025] After the milling process is completed, the feeding unit 4 drives the slide plate 2 to move again, removing the processed wrench blank from the processing position to facilitate the removal of the finished product and prepare for the next processing.

[0026] By using the slide plate 2, processing unit 3, feeding unit 4 and clamping unit 5 in combination, both sides of the wrench blank can be milled simultaneously without the need for flipping, which greatly shortens the processing time and improves production efficiency.

[0027] The clamping unit 5 can firmly clamp the wrench blank, avoiding machining errors caused by workpiece movement during processing. At the same time, the XY axis drive mechanism 31 can accurately drive the milling mechanism 32 to move along the X or Y axis, achieving precise control of the milling position, thereby ensuring the accuracy of milling on both sides of the wrench blank.

[0028] The feeding unit 4 is set at the bottom of the slide plate 2, and the processing unit 3 is set on the base 1 and located on both sides of the slide plate 2. The overall structure is compact and reasonable.

[0029] Through the coordinated work of the feeding unit 4, the clamping unit 5, the XY axis drive mechanism 31, and the milling mechanism 32, the wrench blank is processed from clamping, feeding, positioning to milling, reducing manual intervention and lowering labor intensity.

[0030] like Figure 1 and Figure 2As shown, in one embodiment, the base 1 described in this embodiment is provided with a recycling mechanism 6 in the middle; the recycling mechanism 6 includes a box 61 provided in the middle of the base 1, and support blocks 62 are provided opposite to each other inside the box 61. The feeding unit 4 is provided between the tops of the two support blocks 62; the opposite side of the two support blocks 62 is inclined downward, and a plurality of discharge ports 63 are opened on one side of the box 61.

[0031] During the milling process of the wrench blank, a large amount of waste material, such as metal shavings, will be generated. Under the action of gravity and the force generated during the processing, these waste materials will fall naturally. Since the two support blocks 62 are tilted downward on opposite sides, the waste materials will slide down the inclined surface of the support blocks 62.

[0032] The slid-down waste falls into the container 61 for collection. As the waste accumulates, when it needs to be cleaned up, the waste collected in the container 61 is discharged through these discharge ports 63 for subsequent processing or recycling.

[0033] The recycling mechanism 6 can effectively collect waste generated during the milling process, preventing waste from accumulating around the equipment and keeping the working environment clean.

[0034] like Figure 3 , Figure 4 and Figure 5 As shown, in one embodiment, the feeding unit 4 includes a frame 41 disposed between two support blocks 62. The frame 41 is rectangular and has a through hole in its middle. Two slide rails 42 are arranged opposite each other on the frame 41, and multiple sliders 43 are slidably disposed on the slide rails 42. The slide plate 2 is disposed between the tops of the multiple sliders 43. A bearing seat 44 is provided at one end of the frame 41, and a lead screw 45 is rotatably disposed in the bearing seat 44. A drive motor 46 and a reducer 47 are provided at the other end of the frame 41. The output shaft of the drive motor 46 is connected to the input shaft of the reducer 47, and the output shaft of the reducer 47 is connected to the other end of the lead screw 45. A moving cylinder 48 is threadedly connected to the outer side of the lead screw 45. A transmission block 49 is provided on the moving cylinder 48, and the transmission block 49 is connected to the slide plate 2. A threaded hole adapted to the lead screw 45 is opened in the moving cylinder 48.

[0035] When the drive motor 46 starts, its power is transmitted to the lead screw 45 through the reducer 47, causing the lead screw 45 to start rotating. Since the moving cylinder 48 has a threaded hole that matches the lead screw 45, the rotation of the lead screw 45 will drive the moving cylinder 48 to move linearly along the lead screw 45. The transmission block 49 on the moving cylinder 48 is connected to the slide plate 2. Therefore, the linear movement of the moving cylinder 48 will be transmitted to the slide plate 2 through the transmission block 49, so that the slide plate 2 moves along the Y-axis on the slide rail 42 to realize the feeding and conveying of the wrench blank.

[0036] Through the threaded transmission between the lead screw 45 and the moving cylinder 48, and the guiding effect of the slide rail 42 and the slider 43, the moving distance and direction of the slide plate 2 can be precisely controlled, ensuring the accuracy of the wrench blank feeding.

[0037] Meanwhile, this transmission method operates smoothly, reducing vibration and shaking during the movement of the slide 2, and improving the stability of the equipment.

[0038] The combination of drive motor 46 and reducer 47 can flexibly adjust the moving speed of slide 2 according to actual processing requirements. Reducer 47 can reduce the output speed of drive motor 46 and increase the output torque, so that slide 2 can move at a suitable speed to meet processing requirements.

[0039] like Figure 3 and Figure 4 As shown, the clamping unit 5 in this embodiment includes a base plate 51 disposed opposite to the slide plate 2, an electric push rod 52 disposed above the base plate 51, a feeding platform 53 disposed between the piston rod tops of the two electric push rods 52, a pneumatic gripper 54 disposed above the feeding platform 53, the pneumatic gripper 54 being used to clamp the wrench blank, and the electric push rod 52 being used to drive the feeding platform 53 to rise and fall along the Z-axis.

[0040] When the equipment has not started processing, the clamping unit 5 is in the initial state, with the base plate 51 above the slide plate 2, providing basic support for the entire clamping unit.

[0041] The electric push rod 52 is installed above the base plate 51. At this time, its piston rod is in a retracted state, and the feeding platform 53 is in a lower position under the action of the electric push rod 52, which makes it convenient to place the wrench blank.

[0042] In actual use, the wrench blank to be processed is placed on the feeding table 53, and the pneumatic gripper 54 starts to work. The pneumatic gripper 54 is powered by the pneumatic system, and its two grippers close together to tightly clamp the wrench blank placed on the feeding table 53, ensuring that the wrench blank will not be displaced or loosened during the processing.

[0043] Subsequently, according to the requirements of the processing technology, the electric push rod 52 is started, the piston rod of the electric push rod 52 extends, and pushes the unloading table 53 to rise along the Z-axis. By controlling the extension length of the electric push rod 52, the wrench blank can be adjusted to a suitable processing height, so that it is in the optimal processing position with the milling cutter of the milling mechanism 32.

[0044] After the milling of the wrench blank is completed, the pneumatic gripper 54 releases, releasing the machined wrench. Then, the piston rod of the electric push rod 52 retracts, driving the unloading table 53 to descend along the Z-axis back to its initial position, so as to place and process the wrench blank again.

[0045] like Figure 1 , Figure 6 and Figure 7 As shown, it should be noted that the XY axis drive mechanism 31 includes an electric linear slide rail 311 disposed in the base 1 and a slide table 312 slidably disposed above the base 1. The electric linear slide rail 311 and the slide table 312 are arranged along the length of the base 1. The electric linear slide rail 311 is connected to the slide table 312 and is used to drive the slide table 312 to move along the X axis. The XY axis drive mechanism 31 further includes a second electric linear slide rail 313 disposed on a first slide table 312, and a second slide table 314 slidably disposed on the second electric linear slide rail 313. The second electric linear slide rail 313 and the second slide table 314 move along the width of the base 1. The second electric linear slide rail 313 is connected to the second slide table 314 and is used to drive the second slide table 314 to move along the Y axis.

[0046] The slide table 312 is slidably mounted above the base 1 and connected to the electric linear slide rail 311. Driven by the electric linear slide rail 311, the slide table 312 can move linearly along the length direction of the base 1, i.e., the X-axis direction.

[0047] When the second electric linear slide rail 313 is working, the slide table 314 can move linearly along the width direction of the base 1, i.e., the Y-axis direction, driven by the second electric linear slide rail 313.

[0048] It should be noted that the electric linear guide rail in this implementation scheme includes: Track and Slider: The track provides a linear motion path, and the slider has a built-in steel ball circulation mechanism. Conventional guide rails have four rows of steel balls, while miniature guide rails have two rows, achieving low-resistance motion through rolling friction. Lead Screw and Nut: Cooperating with a worm gear, it converts rotational motion into linear motion. Gearbox: Fixed to the upper slide rail, it achieves linear displacement through the relative movement of the lead screw and the lower slide rail. Drive Motor: Typically a servo motor or stepper motor, it provides rotational power and supports precise control of speed, direction, and acceleration. Electronic Control Unit: The motion trajectory, speed curve, and positioning accuracy are set through programming, supporting multi-axis linkage and complex motion modes. Sensors and Feedback: Position and speed sensors monitor the slider's status in real time, forming a closed-loop control to ensure motion accuracy. This is existing technology and will not be elaborated further.

[0049] The electric linear guide has high positioning accuracy, which can ensure that slide table 312 and slide table 314 move accurately to the designated position in the X and Y axis directions.

[0050] By using electric linear guides in the X and Y axes, multi-axis linkage motion of the milling mechanism in a plane can be achieved. By programming and controlling the movement trajectory of the electric linear guides, the milling mechanism can perform processing according to a predetermined path. This is existing technology and will not be elaborated here.

[0051] like Figure 1 , Figure 6 and Figure 7 As shown, in one embodiment, the milling mechanism 32 includes a housing 321 disposed on the slide table 314. The housing 321 is L-shaped, and a rotating shaft 322 is rotatably disposed inside the housing 321. One end of the rotating shaft 322 near the slide plate 2 extends outward, and a milling head 323 is disposed at the outwardly extending end of the rotating shaft 322. A milling cutter 324 is disposed on the milling head 323. A second drive motor 325 is disposed on the housing 321, and the output shaft of the second drive motor 325 extends into the housing 321. Both the output shaft of the second drive motor 325 and the other end of the rotating shaft 322 are provided with pulleys 326, and the two pulleys 326 are connected by a belt 327.

[0052] When the double-head milling machine starts working, drive motor 2 325 starts, and the output shaft of drive motor 2 325 starts to rotate. The pulley 326 on the output shaft of drive motor 2 325 rotates accordingly. Power is transmitted to the pulley 326 at the other end of the rotating shaft 322 through belt 327. Due to the friction between the belt and the two pulleys, the pulley at the other end of the rotating shaft 322 drives the rotating shaft to rotate together.

[0053] The rotating shaft 322 rotates within the housing 321, and the milling head 323 at its extended end also rotates accordingly, thus providing the milling cutter 324 mounted on the milling head 323 with the power for high-speed rotation.

[0054] Before processing, the wrench blank is accurately clamped and positioned in a suitable location by the clamping unit 5. At this time, the milling cutter 324 is rotating at high speed under the drive of the second drive motor 325. As the XY axis drive mechanism 31 drives the second slide 314 and the entire milling mechanism 32 to move, the high-speed rotating milling cutter 324 gradually approaches the wrench blank. When the milling cutter contacts the wrench blank, the rotational motion of multiple cutting edges on the milling cutter is used to cut the surface of the wrench blank, removing excess material, thereby processing the flat surface of the wrench according to the preset shape and size.

[0055] The milling head 323 is the mounting carrier for the milling cutter, which securely fixes the milling cutter in a suitable position, allowing it to accurately contact the wrench blank and perform cutting during rotation. The milling cutter 324 is the component that directly cuts the wrench blank. Multiple cutting edges distributed on it continuously remove material from the surface of the wrench blank during high-speed rotation, machining the wrench's flat surface according to a predetermined shape and size. This is prior art and will not be described further here.

[0056] Drive motor 2 (325) is the power source for the milling mechanism, providing the necessary rotational power for the entire milling process. By controlling the speed and direction of drive motor 2, the rotational speed and cutting direction of the milling cutter can be adjusted to meet the requirements of different machining processes. This is existing technology and will not be elaborated further here.

[0057] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0058] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0059] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A double-head milling machine for wrench processing, comprising: A base (1) is provided with a slide (2) in the middle. Processing units (3) located on both sides of the slide (2) are provided on the base (1). The processing unit (3) includes an XY axis drive mechanism (31) arranged above the base (1) and a milling mechanism (32) arranged above the XY axis drive mechanism (31). The XY axis drive mechanism (31) is used to drive the milling mechanism (32) to move along the X axis or Y axis. The milling mechanism (32) is used to mill the side of the wrench blank. The bottom of the slide plate (2) is provided with a feeding unit (4), and the slide plate (2) is provided with a clamping unit (5). The clamping unit (5) is used to clamp the wrench blank, and the feeding unit (4) is used to drive the slide plate (2) to move along the Y-axis.

2. The double-head milling machine for wrench processing as described in claim 1, characterized in that: A recycling mechanism (6) is provided in the middle of the base (1); The recycling mechanism (6) includes a box (61) located in the middle of the base (1), and support blocks (62) are arranged opposite each other inside the box (61). The feeding unit (4) is located between the tops of the two support blocks (62). The two support blocks (62) are tilted downward on opposite sides, and the box body (61) has multiple discharge ports (63) on one side.

3. A double-head milling machine for wrench processing as described in claim 2, characterized in that: The feeding unit (4) includes a frame (41) disposed between two support blocks (62). The frame (41) is rectangular and has a through hole in the middle. Two slide rails (42) are disposed opposite to each other on the frame (41). Multiple sliders (43) are slidably disposed on the slide rails (42). The slide plate (2) is disposed between the tops of the multiple sliders (43). One end of the frame (41) is provided with a bearing seat (44), and a lead screw (45) is rotatably arranged inside the bearing seat (44). The other end of the frame (41) is provided with a drive motor (46) and a reducer (47). The output shaft of the drive motor (46) is connected to the input shaft of the reducer (47), and the output shaft of the reducer (47) is connected to the other end of the lead screw (45). The lead screw (45) is threaded to a movable cylinder (48), and a transmission block (49) is provided on the movable cylinder (48). The transmission block (49) is connected to the slide plate (2).

4. A double-head milling machine for wrench processing as described in claim 1, characterized in that: The clamping unit (5) includes a base plate (51) disposed opposite to the slide plate (2), an electric push rod (52) disposed above the base plate (51), and a feeding platform (53) disposed between the piston rod tops of the two electric push rods (52). A pneumatic gripper (54) is disposed above the feeding platform (53). The pneumatic gripper (54) is used to clamp the wrench blank. The electric push rod (52) is used to drive the feeding platform (53) to move up and down along the Z-axis.

5. A double-head milling machine for wrench processing as described in claim 1, characterized in that: The XY axis drive mechanism (31) includes an electric linear slide rail (311) disposed in the base (1) and a slide table (312) slidably disposed above the base (1). The electric linear slide rail (311) and the slide table (312) are arranged along the length of the base (1). The electric linear slide rail (311) is connected to the slide table (312) and is used to drive the slide table (312) to move along the X axis. The XY axis drive mechanism (31) further includes a second electric linear slide rail (313) disposed on a slide table (312), and a slide table (314) slidably disposed on the second electric linear slide rail (313). The second electric linear slide rail (313) and the slide table (314) move along the width of the base (1). The second electric linear slide rail (313) is connected to the slide table (314) and is used to drive the slide table (314) to move along the Y axis.

6. A double-head milling machine for wrench processing as described in claim 5, characterized in that: The milling mechanism (32) includes a housing (321) disposed on the slide table (314). The housing (321) is L-shaped. A rotating shaft (322) is rotatably disposed inside the housing (321). The end of the rotating shaft (322) near the slide plate (2) extends outward. A milling head (323) is disposed at the end of the rotating shaft (322) extending outward. A milling cutter (324) is disposed on the milling head (323). The housing (321) is provided with a second drive motor (325), the output shaft of the second drive motor (325) extends into the housing (321), and the other end of the output shaft of the second drive motor (325) and the rotating shaft (322) are both provided with pulleys (326), and the two pulleys (326) are connected by a belt (327).

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