Jaw plate hardening hammering machine

Abstract

The utility model discloses a jaw plate hardening hammering machine, and belongs to the technical field of jaw plate machining equipment of jaw crushers. The device comprises a control cabinet, a jaw plate bearing device, a door frame and an air hammer assembly, and automatic knocking of the convex part surface of a jaw plate is achieved through cooperative work of mechanical structures. The jaw plate bearing device drives the jaw plate to move along the Y axis, the portal frame supports the air hammer assembly to move along the X axis, the air hammer assembly adjusts the position of the Z axis through the telescopic arm and adjusts the angle through the rotary disc, and the air hammer completes knocking operation. The equipment replaces manual knocking, reduces the labor intensity, improves the working efficiency, ensures uniform knocking density and strength, remarkably improves the hardness and wear resistance of the jaw plate, prolongs the service life, is convenient to operate and high in universality, and can meet the large-scale production requirement.

Description

Technical Field

[0001] The utility model belongs to the technical field of jaw plate processing equipment of a jaw crusher, and particularly relates to a jaw plate hardening hammering machine used for surface hardening treatment of the jaw plate. Background Art

[0002] As a key piece of equipment in the crushing industry, the performance of the jaw plates (including the movable and stationary jaws)—the core working components of a jaw crusher—directly determines its crushing efficiency and equipment life. Existing jaw plates typically consist of a base plate and multiple raised sections distributed across the base plate. During operation, material is crushed by the mutual compression of these raised sections between the movable and stationary jaws.

[0003] Currently, 80% of jaw crusher jaw plates are made of high-manganese steel. However, high-manganese steel has inherent drawbacks: its low hardness, typically in the HB200-250 range, makes the jaw plate's convex portion susceptible to wear and deformation from continuous compression and friction with the stone. This not only significantly reduces the crushing efficiency of the jaw crusher but also significantly shortens the jaw plate's service life, resulting in shorter average replacement cycles. Frequent replacement and repair not only increases equipment maintenance costs but also seriously impacts production continuity.

[0004] To improve the performance of the jaw plate's convex section, the industry is experimenting with cold plastic deformation. By tapping the jaw plate's convex section, the impact-induced microstructural changes (such as grain refinement and increased dislocation density) within the material are utilized to enhance its hardness and wear resistance. Practical data shows that the service life of jaw plates treated with effective tapping can be more than doubled.

[0005] However, in existing technologies, the peening treatment of the convex surface of the jaw plate mainly relies on manual hammering. This method has many disadvantages: first, it is extremely labor-intensive, and workers easily become fatigued after working for a long time; second, it is inefficient and cannot meet the needs of large-scale production; third, the density and intensity of the peening are completely dependent on manual experience, with extremely poor uniformity. This leads to significant differences in the hardness and wear resistance improvement effects of different areas of the convex surface of the jaw plate, making it impossible to ensure stable treatment quality, and seriously restricting the potential for improving the performance of the jaw plate.

[0006] Therefore, the development of a jaw plate hardening equipment that can replace manual labor and achieve uniform and efficient knocking treatment has become the key to solving the problems of short service life and high maintenance cost of existing jaw plates. Utility Model Content

[0007] The utility model aims to provide a jaw plate hardening hammering machine, which realizes automatic hammering of the convex surface of the jaw plate instead of manual operation through a mechanical structure, and solves the problems of uneven strength and low efficiency existing in manual hammering.

[0008] The core technical solution of this utility model is as follows:

[0009] A jaw plate hardening hammering machine includes four key parts: a control cabinet, a jaw plate bearing device, a door frame and an air hammer assembly. Each part forms a collaborative working system through mechanical connection and circuit control to achieve jaw plate positioning and hammering operations.

[0010] The control cabinet, serving as the equipment's central control center, houses the main power switch and on / off circuits for each motor. It also features an external control panel. The control panel houses independent control components: the main power switch, a start / stop button for controlling the Y-axis movement of the jaw carriage, a start / stop button for controlling the X-axis movement of the air hammer assembly, and a start / stop button for controlling the extension and retraction of the telescopic arm. Each control component is directly connected to its corresponding motor via internal switching circuits, enabling manual starting and stopping, as well as direction adjustment.

[0011] Jaw plate bearing device: used to bear the jaw plate and drive it to move along the Y axis, including:

[0012] Track assembly: It consists of a left track and a right track arranged in parallel, extending along the Y-axis direction, providing a moving guide for the jaw truck;

[0013] Jaw plate car: It includes a car plate and a rail wheel set at the bottom. The rail wheel set includes a left front rail wheel and a left rear rail wheel that match the left track, and a right front rail wheel and a right rear rail wheel that match the right track. It can roll along the track. A jaw plate locking mechanism is provided above the car plate to fix the jaw plate, ensuring that the jaw plate does not move during the hammering process.

[0014] Driving components: The jaw trolley is driven by the Y-axis motor, which is connected to the rail-wheel assembly through a transmission structure, driving the jaw trolley to move along the track in the Y-axis direction.

[0015] Gantry: Provides support for the hammer assembly and guides movement in the X-axis direction, including:

[0016] Columns: The left column and the right column are respectively set on the left side of the left track and the right side of the right track, and are set perpendicular to the ground;

[0017] Slide rail: connected to the top of the left and right columns along the X-axis direction, forming a vertical cross structure with the track of the jaw plate bearing device, providing support and guidance for the X-axis movement of the air hammer assembly.

[0018] Air hammer assembly: used to realize hammering operation and position and angle adjustment of the jaw plate, including:

[0019] Slider: Installed on the slide rail and slidingly cooperates with the slide rail; the slider is connected to the X-axis motor through a transmission structure and moves along the slide rail in the X-axis direction under the drive of the X-axis motor;

[0020] Telescopic arm: It includes a fixed arm and a movable arm. The movable arm slides with the fixed arm through a slide groove and can be extended and retracted along the fixed arm. The movable arm is driven by a Z-axis motor, which drives the movable arm to move along the fixed arm in the Z-axis direction through a transmission structure.

[0021] Turntable: A rotatable structure connected to the side of the slider and the fixed arm. It can be rotated relative to the slider to adjust the angle of the telescopic arm. The angle can be locked after adjustment.

[0022] Air hammer: installed at the lower end of the movable arm, used for hammering the convex surface of the jaw plate.

[0023] Based on the above solution, the following optimizations can be used to further improve device performance:

[0024] Optimization of driving components: The Y-axis motor drives the left front rail wheel and the right front rail wheel through a T-type gear reducer, or drives the left rear rail wheel and the right rear rail wheel.

[0025] Optimization of the jaw plate locking mechanism: The jaw plate locking mechanism adopts four tightening screws. Four tightening screws are set on the car plate through a screw fixing seat with a screw nut. The tightening screws are set parallel to the car plate. By rotating the tightening screws to press against the side of the jaw plate, the jaw plate can be fixed in the plane.

[0026] Optimization of the transmission of the slide rail and the slider: the slide rail is composed of two parallel channel steels with openings facing inward, and an X-axis lead screw is provided between the two channel steels. The X-axis lead screw is provided parallel to the channel steel, and its two ends are rotatably connected to the slide rail; the slider includes a square sleeve that is slidably mounted on the slide rail, and an X-axis lead screw nut that cooperates with the X-axis lead screw is provided inside the square sleeve. The X-axis motor is connected to one end of the X-axis lead screw to drive the X-axis lead screw to rotate, and the slider is driven to move along the slide rail through the cooperation of the X-axis lead screw and the nut, thereby improving the accuracy and stability of the X-axis movement.

[0027] Optimization of the turntable structure: the turntable consists of a fixed plate, a center disc and a movable plate. The fixed plate is fixed to the side of the slider and has an annular step in the center. The center disc is located on the inner side of the annular step. The movable plate is located on the outer side of the annular step and is welded to the fixed arm of the telescopic arm through a pad. The center disc and the movable plate are connected by 4 evenly distributed turntable bolts. The 4 turntable bolts are located in the step ring and do not contact or connect with the fixed plate. Loosening the turntable bolts can adjust the angle of the movable plate and the telescopic arm. By evenly tightening the 4 turntable bolts, the movable plate and the annular step of the fixed plate are tightly fitted to achieve angle locking.

[0028] Telescopic arm transmission optimization: the fixed arm is rotatably connected to the Z-axis screw parallel to the fixed arm; its upper end is connected to the Z-axis motor, and a slide groove is provided in the middle of the fixed arm, and the movable arm is slidably installed in the slide groove. The movable arm is provided with a Z-axis screw nut that cooperates with the Z-axis screw. The Z-axis motor drives the Z-axis screw to rotate, and the cooperation between the Z-axis screw and the nut drives the movable arm to extend and retract along the fixed arm, thereby improving the accuracy of Z-axis movement.

[0029] Automation control optimization: An automation control system can be added, a microprocessor is added to the control cabinet, and a display and keyboard are provided on the external control panel; the Y-axis motor, X-axis motor and Z-axis motor use servo motors or stepper motors, which are connected to the microprocessor through a drive module; the microprocessor can receive parameter instructions input from the keyboard, control the coordinated operation of each motor, and realize automated hammering operation; the display is used to display the operating parameters and status of the equipment.

[0030] The automated control is further optimized: a Y-axis travel switch is set on the side of the jaw car plate, and a Y-axis switch front stopper and a Y-axis switch rear stopper are set on the left or right track to match the Y-axis travel switch; an X-axis travel switch is set on the side of the slider, and an X-axis switch left stopper and an X-axis switch right stopper are set on the slide rail to match the X-axis travel switch; a Z-axis travel switch is set on the Z-axis screw nut, and an Z-axis switch upper stopper and a Z-axis switch lower stopper are set on the slide slot to match the Z-axis travel switch;

[0031] The Y-axis travel switch, the X-axis travel switch and the Z-axis travel switch are all electrically connected to the microprocessor; according to the jaw plate size and operation requirements, each switch block is adjusted and fixed in an appropriate position.

[0032] When the jaw trolley moves forward or backward to its position, the Y-axis travel switch is triggered by the front stopper of the Y-axis switch or the rear stopper of the Y-axis switch, and the Y-axis travel switch transmits a signal to the microprocessor, which works according to the following procedure: ① Pause the rotation of the Y-axis motor; ② Start the rotation of the X-axis motor, and the X-axis motor drives the telescopic arm to move horizontally to the next jaw convex part through the X-axis screw and slider (the horizontal movement distance is pre-set according to the spacing between the jaw convex parts); ③ Stop the rotation of the X-axis motor; ④ Start the Y-axis motor to rotate in the opposite direction to perform the reverse stroke knocking operation on the jaw convex part; ⑤ When the jaw trolley returns to its position, repeat the above steps.

[0033] When the telescopic arm moves horizontally to the limited position, the X-axis limit switch is triggered by the left stopper of the X-axis switch or the right stopper of the X-axis switch. The X-axis limit switch transmits a signal to the microprocessor, which controls the X-axis motor to stop running to prevent damage caused by overtravel of the equipment.

[0034] When the movable arm is extended or retracted to a limited position, the Z-axis limit switch is triggered by the upper block or the lower block of the Z-axis switch. The Z-axis limit switch transmits a signal to the microprocessor, which controls the Z-axis motor to stop running to prevent damage caused by overtravel of the equipment.

[0035] Compared with the prior art, the present invention has the following significant beneficial effects:

[0036] (1) Replace manual operation: The mechanical structure is used to realize the automatic tapping of the convex surface of the jaw plate, which completely solves the problem of high labor intensity and low efficiency of manual tapping and meets the needs of large-scale production.

[0037] (2) Improve processing uniformity: Mechanical drive ensures consistent knocking density and intensity, avoiding uneven performance of different areas of the jaw plate caused by differences in manual experience, significantly improving the hardness and wear resistance of the convex part of the jaw plate, extending its service life by more than 1 times, and reducing equipment maintenance costs.

[0038] (3) Convenient and flexible operation: The manual control method is simple and reliable, and the control panel can directly adjust the movement in all directions, which is suitable for use by small and medium-sized enterprises; at the same time, the angle of the air hammer can be flexibly adjusted through the turntable, and the telescopic arm can adjust the Z-axis position, which is suitable for processing jaws of different specifications and has strong versatility.

[0039] (4) Safe and stable operation: The jaw locking mechanism fixes the jaw by tightening the screw to avoid displacement during hammering; the travel switch can accurately control the movement range of each axis to prevent the equipment from overtravel damage and ensure operation safety.

[0040] (5) Reserved space for upgrade: Optional microprocessor control system can be used to realize automated hammering operation, further improve control accuracy and production efficiency, and adapt to the technical needs of different users. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 : This is a schematic diagram of the overall structure of the jaw plate hardening hammering machine of the utility model;

[0042] Figure 2 : It is a schematic structural diagram of the jaw plate bearing device of the utility model;

[0043] Figure 3 : This is a schematic diagram of the rail wheel set, Y-axis motor and transmission structure of the utility model;

[0044] Figure 4 : This is a schematic diagram of the structure of the gantry and air hammer assembly of the utility model;

[0045] Figure 5 : This is a schematic diagram of the structure of the pneumatic hammer assembly of the utility model;

[0046] Figure 6 : This is a schematic diagram of the slide rail structure of the utility model;

[0047] Figure 7 : This is a schematic diagram of the structure of the slider and turntable of the utility model;

[0048] Figure 8 : This is a schematic diagram of the decomposition structure of the turntable of the utility model;

[0049] Figure 9 : It is a schematic diagram of the cutaway structure of the turntable of the utility model;

[0050] Figure 10 : It is a schematic diagram of the cutaway structure of the turntable of the present invention.

[0051] In the figure: 1-control cabinet; 2-jaw plate bearing device; 21-left track; 22-right track; 23-Y-axis motor; 24-jaw plate car; 241-car plate; 242-tightening screw; 243-left front rail wheel; 244-left rear rail wheel; 245-right front rail wheel; 246-right rear rail wheel; 25-T-type gear reducer; 26-Y-axis travel switch; 27-Y-axis switch front stopper; 28-Y-axis switch rear stopper; 3-gantry; 31-left column; 32-right column; 33-slide rail; 331-channel steel; 34-X-axis travel switch; 35-X-axis switch left stopper; 36-X-axis switch Right stopper; 4-air hammer assembly; 41-X-axis motor; 42-X-axis lead screw; 43-slider; 431-square sleeve; 432-X-axis lead screw nut; 44-turntable; 441-fixed plate; 442-center disc; 443-moving plate; 444-turntable bolt; 445-shim; 45-telescopic arm; 451-fixed arm; 452-movable arm; 453-Z-axis motor; 454-Z-axis lead screw; 455-Z-axis lead screw nut; 456-slide; 457-Z-axis travel switch; 458-Z-axis switch upper stopper; 459-Z-axis switch lower stopper; 46-air hammer; 5-jaw plate. DETAILED DESCRIPTION

[0052] The following is combined with Figures 1 to 10 , the specific structure and installation method of the utility model are described in detail.

[0053] (1) Specific structural embodiments of the present utility model

[0054] 1. Overall structural composition

[0055] The utility model discloses a jaw plate hardening hammering machine, which comprises a control cabinet 1, a jaw plate bearing device 2, a door frame 3 and an air hammer assembly 4. Each part works in coordination through mechanical connection and circuit control to realize the positioning and hammering operation of the jaw plate 5.

[0056] 2. Detailed structure of each component

[0057] Control Cabinet 1: Serving as the central control center, it houses the main power switch and the on / off circuits for each motor. Externally, it features a control panel. This panel houses the main power switch, Y-axis movement start / stop buttons, X-axis movement start / stop buttons, and telescopic arm extension / extension start / stop buttons. Each button is connected to a corresponding motor via internal circuitry, enabling manual control.

[0058] The jaw plate carrying device 2 includes a track assembly, a jaw plate vehicle 24 and a driving component.

[0059] Track assembly: It consists of a left track 21 and a right track 22 arranged in parallel, extending along the Y-axis direction to provide guidance for the jaw vehicle 24.

[0060] The jaw plate car 24: includes a car plate 241 and a rail wheel group at the bottom, the rail wheel group includes a left front rail wheel 243, a left rear rail wheel 244 (cooperating with the left track 21) and a right front rail wheel 245, a right rear rail wheel 246 (cooperating with the right track 22), and can roll along the track; four tightening screws 242 (jaw plate locking mechanism) are provided above the car plate 241, which are installed through a screw fixing seat and are parallel to the car plate 241. Rotating the tightening screws 242 can tighten the side of the jaw plate 5 to achieve plane fixation.

[0061] Driving components: The Y-axis motor 23 is connected to the rail wheel set (preferably driving the left front rail wheel 243 and the right front rail wheel 245) through the T-type gear reducer 25, driving the jaw car 24 to move along the Y axis.

[0062] Mast 3: Includes left column 31, right column 32, and slide rail 33. Left column 31 and right column 32 are erected on the left side of left track 21 and right side of right track 22, respectively, perpendicular to the ground. Slide rail 33 connects to the top of the two columns along the X-axis, intersecting the rail assembly perpendicularly, providing X-axis support for the hammer assembly 4.

[0063] The air hammer assembly 4 includes a slider 43 , a rotating disk 44 , a telescopic arm 45 and an air hammer 46 .

[0064] Slider 43: Mounted on and slidingly engaged with the slide rail 33. The slide rail 33 is composed of two parallel channel steels 331 with inward openings. An X-axis lead screw 42 (parallel to the channel steels 331) is disposed between the two channel steels 331 and rotatably connected to the slide rail 33 at both ends. Slider 43 includes a square sleeve 431 that fits within the slide rail 33. An X-axis lead screw nut 432 is disposed within the square sleeve 431 and engages with the X-axis lead screw 42. An X-axis motor 41 is connected to one end of the X-axis lead screw 42, driving its rotation. The lead screw and nut cooperate to drive slider 43 along the X-axis.

[0065] Turntable 44: Turntable 44 connects the side of slider 43 to fixed arm 451 of telescopic arm 45. It comprises a fixed plate 441, a center disc 442, and a movable plate 443. Fixed plate 441 is fixed to the side of slider 43, with a circular step at its center. Center disc 442 is located inside the circular step. Moving plate 443 is located outside the circular step and welded to fixed arm 451 via a backing plate. Center disc 442 and movable plate 443 are connected by four evenly spaced turntable bolts 444. These bolts are located within the step ring and prevent contact or connection with fixed plate 441. Loosening the bolts allows for angle adjustment. Tightening them secures movable plate 443 against fixed plate 441.

[0066] Telescopic arm 45: consists of a fixed arm 451 and a movable arm 452. Fixed arm 451 is rotatably connected to a Z-axis lead screw 454 (parallel to fixed arm 451), the upper end of which is connected to a Z-axis motor 453. A slide 456 is provided in the middle of fixed arm 451, and movable arm 452 slides within this slide 456. A Z-axis lead screw nut 455 is provided on movable arm 452, which engages with Z-axis lead screw 454. Z-axis motor 453 drives Z-axis lead screw 454 to rotate, causing movable arm 452 to extend and retract along the Z-axis.

[0067] The air hammer 46 is installed at the lower end of the movable arm 452 and is used to hammer the convex surface of the jaw plate 5.

[0068] Travel switch assembly: A Y-axis travel switch 26 is provided on the side of the jaw trolley 24, and a Y-axis switch front stopper 27 and a Y-axis switch rear stopper 28 are provided at both ends of the left track 21 (or the right track 22); an X-axis travel switch 34 is provided on the side of the slider 43, and an X-axis switch left stopper 35 and an X-axis switch right stopper 36 are provided on the slide rail 33; a Z-axis travel switch 457 is provided on the Z-axis lead screw nut 455, and a Z-axis switch upper stopper 458 and a Z-axis switch lower stopper 459 are provided on the slide groove 456; each travel switch is electrically connected to the microprocessor (optional) in the control cabinet 1 to limit the moving range of each axis.

[0069] (2) Working principle and operation steps

[0070] 1. Working Principle

[0071] This equipment coordinates the movement of the jaw plate bearing device 2, the door frame 3 and the air hammer assembly 4 through the control cabinet 1 to achieve automatic hammering of the convex surface of the jaw plate 5:

[0072] The Y-axis motor 23 of the jaw plate carrying device 2 drives the jaw plate vehicle 24 to move along the Y-axis, driving the jaw plate 5 to feed longitudinally;

[0073] The slide rail 33 of the gantry 3 provides X-axis guidance for the air hammer assembly 4, and the X-axis motor 41 drives the slide 43 to move along the X-axis to achieve lateral positioning of the air hammer 46;

[0074] The Z-axis motor 453 of the telescopic arm 45 drives the movable arm 452 to extend and retract, adjusting the Z-axis height of the air hammer 46 to adapt to the thickness of the convex portion of the jaw plate 5;

[0075] The turntable 44 can adjust the angle of the telescopic arm 45 to ensure that the air hammer 46 is perpendicular to the convex surface of the jaw plate 5 (or adjust the angle as needed);

[0076] On the basis of the above positioning, the air hammer 46 performs high-frequency tapping on the convex surface of the jaw plate 5, thereby refining the material grains and increasing the dislocation density through cold plastic deformation, thereby improving its hardness and wear resistance.

[0077] 2. Operation steps

[0078] Equipment inspection and preparation: Check whether the power connection of the control cabinet 1 is normal, and whether the motors, air hammers 46 and track components are intact; clean the car plate 241 of the jaw car 24 to ensure that there is no debris.

[0079] Jaw plate installation and fixation: Place the jaw plate 5 to be processed on the car plate 241 of the jaw plate car 24, and adjust the position so that the convex part of the jaw plate 5 faces the air hammer 46; rotate the four tightening screws 242 to tighten the side of the jaw plate 5 to ensure that it is fixed without looseness.

[0080] Parameter adjustment:

[0081] Manually adjust the turntable bolt 444 of the turntable 44, adjust the angle of the telescopic arm 45, align the air hammer 46 with the convex surface of the jaw plate 5, and tighten the bolt to lock the angle;

[0082] Start the Z-axis motor 453 through the control panel, adjust the extension and retraction of the movable arm 452 so that the lower end of the air hammer 46 contacts the surface of the convex portion of the jaw plate 5 (or maintains a preset distance), and turn off the Z-axis motor 453.

[0083] Manual mode operation:

[0084] Press the main power switch to start the device;

[0085] Press the Y-axis movement start and stop button to drive the jaw car 24 to move along the Y-axis, and at the same time start the air hammer 46 to strike the convex part of the jaw 5 longitudinally;

[0086] After the knocking of a single convex portion is completed, the Y-axis motor 23 is turned off, and the X-axis movement start and stop button is pressed to drive the slider 43 to move along the X-axis to just above the next convex portion, and the above Y-axis movement and knocking process is repeated;

[0087] After all the convex parts are processed, the air hammer 46 and the main power switch are turned off.

[0088] Automatic mode operation (when equipped with optional microprocessor):

[0089] Input the parameters such as the distance between the convex parts of the jaw plate 5 and the Y-axis moving speed on the keyboard of the control panel, and confirm that the parameters are correct on the display;

[0090] Start the automatic operation program, and the equipment works according to the preset logic: the Y-axis motor 23 drives the jaw car 24 to move, and the air hammer 46 strikes synchronously; after reaching the position, the Y-axis limit switch 26 is triggered, the microprocessor controls the Y-axis motor 23 to pause, and the X-axis motor 41 drives the slider 43 to move to the next convex part, then the Y-axis motor 23 runs in the reverse direction, and the air hammer 46 strikes in the reverse direction;

[0091] During the process, the X-axis and Z-axis travel switches monitor the moving range in real time and automatically shut down when the limit is exceeded to ensure safety;

[0092] After all operations are completed, the equipment automatically stops and the power is turned off.

[0093] Post-operation processing: loosen the tightening screw 242 and remove the processed jaw plate 5; clean the debris on the equipment surface and track components, check the status of each component, and prepare for the next use.

[0094] The contents of the above specific implementation methods are only used to illustrate the technical solution of the utility model, rather than to limit the scope of protection of the utility model. Simple modifications or equivalent replacements of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. A jaw plate hardening hammering machine, characterized in that: It comprises a control cabinet (1), a jaw plate bearing device (2), a door frame (3) and an air hammer assembly (4), wherein each part forms a coordinated working system through mechanical connection and circuit control; The control cabinet (1) is a control center, which is provided with a main power switch, a switch circuit for controlling the on and off of each motor, and an external control panel. The control panel is provided with start and stop buttons for controlling the Y-axis movement of the jaw bearing device (2), the X-axis movement of the air hammer assembly (4), and the extension and retraction of the telescopic arm (45); The jaw plate carrying device (2) comprises a track assembly extending along the Y axis, a jaw plate vehicle (24) movable along the track assembly, and a driving component for driving the jaw plate vehicle (24) to move, wherein the jaw plate vehicle (24) is provided with a jaw plate locking mechanism; The door frame (3) comprises a left column (31), a right column (32) and a slide rail (33) connected to the top of the column along the X-axis, and the slide rail (33) intersects the track assembly vertically; The air hammer assembly (4) comprises a slider (43) slidably engaged with the slide rail (33), a turntable (44) connected to the slider (43), a telescopic arm (45) connected to the turntable (44), and an air hammer (46) mounted on the lower end of the telescopic arm (45), wherein the slider (43) is driven by an X-axis motor (41), and the telescopic arm (45) is driven by a Z-axis motor (453).

2. The jaw plate hardening hammering machine according to claim 1, characterized in that: The track assembly comprises a left track (21) and a right track (22); the rail wheel assembly of the jaw vehicle (24) comprises a left front rail wheel (243) and a left rear rail wheel (244) matched with the left track (21), and a right front rail wheel (245) and a right rear rail wheel (246) matched with the right track (22); the driving component is a Y-axis motor (23), and the Y-axis motor (23) is connected to the rail wheel assembly through a transmission structure.

3. The jaw plate hardening hammering machine according to claim 2, characterized in that: The Y-axis motor (23) drives and connects the left front rail wheel (243) and the right front rail wheel (245) or drives and connects the left rear rail wheel (244) and the right rear rail wheel (246) through a T-type gear reducer (25).

4. The jaw plate hardening hammering machine according to claim 1, characterized in that: The jaw plate locking mechanism comprises four tightening screws (242), which are arranged on the vehicle plate (241) of the jaw plate vehicle (24) through screw fixing seats and are arranged parallel to the vehicle plate (241).

5. The jaw plate hardening hammering machine according to claim 1, characterized in that: The slide rail (33) is composed of two parallel channel steels (331) with openings facing inwards, an X-axis lead screw (42) is provided between the two channel steels (331), and the X-axis lead screw (42) is connected to the X-axis motor (41); the slider (43) includes a square sleeve (431) sleeved on the slide rail (33), and an X-axis lead screw nut (432) is provided in the square sleeve (431) and cooperates with the X-axis lead screw (42).

6. The jaw plate hardening hammering machine according to claim 1, characterized in that: The turntable (44) includes a fixed plate (441) fixed to the side of the slider (43), a central disc (442), and a movable plate (443) connected to the telescopic arm (45). The central disc (442) and the movable plate (443) are connected by a plurality of turntable bolts (444). Tightening the turntable bolts (444) can lock the angle of the movable plate (443).

7. The jaw plate hardening hammering machine according to claim 1, characterized in that: The telescopic arm (45) comprises a fixed arm (451) and a movable arm (452); the fixed arm (451) is provided with a Z-axis lead screw (454); the Z-axis lead screw (454) is connected to a Z-axis motor (453); the movable arm (452) is slidably engaged with the fixed arm (451) via a slide groove (456); and the movable arm (452) is provided with a Z-axis lead screw nut (455) engaged with the Z-axis lead screw (454).

8. The jaw plate hardening hammering machine according to claim 7, characterized in that: The control cabinet (1) is provided with a microprocessor. The Y-axis motor (23), the X-axis motor (41), and the Z-axis motor (453) are servo motors or stepper motors, which are connected to the microprocessor via a drive module. A display and a keyboard are provided on the control panel.

9. The jaw plate hardening hammering machine according to claim 7 or 8, characterized in that: The side of the jaw carriage (24) is provided with a Y-axis travel switch (26), and both ends of the track assembly are provided with a Y-axis switch front stopper (27) and a Y-axis switch rear stopper (28); the side of the slider (43) is provided with an X-axis travel switch (34), and the slide rail (33) is provided with an X-axis switch left stopper (35) and an X-axis switch right stopper (36); the Z-axis lead screw nut (455) is provided with a Z-axis travel switch (457), and the slide groove (456) is provided with a Z-axis switch upper stopper (458) and a Z-axis switch lower stopper (459); each travel switch is electrically connected to a microprocessor.

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