A kind of numerical control horizontal turning and boring machine tool rest anti-impact locking mechanism

Abstract

This invention relates to the field of CNC manufacturing technology, specifically to an anti-impact locking mechanism for a CNC horizontal lathe and boring machine tool post, comprising: a machine base; a lower gear plate fixed on a support platform, with an upper gear plate slidably mounted on the lower gear plate; a force-increasing eccentric mechanism disposed on the support platform, the force-increasing eccentric mechanism having a pressing component, the pressing component being connected to a limit plate, the pressing component being able to perform a pressing and locking action on the upper gear plate through the limit plate when the force-increasing eccentric mechanism moves, the upper gear plate can be locked onto the lower gear plate through the cooperation of the force-increasing eccentric mechanism and the pressing component, thereby ensuring machining stability.

Description

Technical Field

[0001] This invention relates to the field of numerical control manufacturing technology, specifically to an impact-resistant locking mechanism for the tool post of a CNC horizontal lathe and boring machine. Background Technology

[0002] In heavy cutting processes such as turning and boring, strong impact vibrations are generated when the tool comes into contact with the workpiece or when the feed rate is too fast. This impact force will cause the tool to be subjected to circumferential torsional force. If the tool holder locking rigidity is insufficient, the tool will deflect in the circumferential direction, which will lead to problems such as machining dimension deviation. In severe cases, the tool holder locking failure will cause the tool holder to detach from the fixed position and cause danger.

[0003] In the existing technology, the locking of the CNC tool post is mainly achieved by the meshing of the tooth surfaces of the upper and lower end gear plates to achieve circumferential positioning, and the upper and lower end gear plates are pressed together by hydraulic or pneumatic drive to resist the cutting force. The teeth of this type of toothed disc are usually triangular or isosceles trapezoidal in shape. By providing axial downward pressure, it can ensure a tight fit between the upper and lower toothed discs, thereby increasing the force-bearing area and distributing the impact stress to the inclined surface. However, when the circumferential impact force is large, the inclined surface where the toothed discs mesh will give way, resulting in circumferential locking failure. As a result, there will be a large degree of circumferential rotational misalignment and axial separation between the upper and lower toothed discs, which will lead to tool misalignment, tool holder vibration, and even tool detachment and damage. Summary of the Invention

[0004] The purpose of this invention is to provide an impact-resistant locking mechanism for the tool post of a CNC horizontal lathe boring machine, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An impact-resistant locking mechanism for the tool post of a CNC horizontal lathe boring machine includes: The machine base, and the guide rail fixed on the machine base, with a side push rod slidably installed on the guide rail, and a three-jaw chuck also installed on the machine base; Also includes: A translation component is mounted on the machine base, and a support platform is connected to the translation component. A lower gear disk is fixed on the support platform, and an upper gear disk is slidably mounted on the lower gear disk. A force-enhancing eccentric mechanism is mounted on the support platform. A pressing component is mounted on the force-enhancing eccentric mechanism. A limiting plate is connected to the pressing component. When the force-enhancing eccentric mechanism moves, the pressing component can perform a pressing and locking action on the upper gear plate through the limiting plate.

[0006] As a further aspect of the present invention: the translation component includes a transverse lead screw rotatably mounted on the machine base, a guide column fixed on the machine base and distributed parallel to the transverse lead screw, and a movable table threadedly connected to the transverse lead screw and slidingly on the guide column along its axial direction.

[0007] As a further embodiment of the present invention: the translation component further includes a sliding rail fixed on the movable platform, a longitudinal lead screw is rotatably installed in the sliding rail, the support platform is slidably connected to the sliding rail, and is threadedly connected to the longitudinal lead screw.

[0008] As a further embodiment of the present invention: the upper end surface of the lower gear disk is formed with a first trapezoidal groove and a second trapezoidal groove, the first trapezoidal groove and the second trapezoidal groove are circumferentially equidistantly distributed and staggered, the first trapezoidal groove and the second trapezoidal groove are right trapezoids and have opposite directions.

[0009] As a further embodiment of the present invention: the lower end face of the upper gear disk is fixed with a first trapezoidal tooth and a second trapezoidal tooth, the first trapezoidal tooth and the second trapezoidal tooth are circumferentially equidistantly distributed and are respectively fitted into the shapes of the first trapezoidal groove and the second trapezoidal groove.

[0010] As a further embodiment of the present invention: the force-increasing sway mechanism includes a support plate fixed on the support platform and symmetrically distributed thereon, a force-increasing rod is hinged to the support plate, and a slot is formed on the force-increasing rod; It also includes a support assembly and a pushing assembly that are disposed on the support platform and connected to the slot.

[0011] As a further embodiment of the present invention: the support assembly includes fixed sleeves fixed on the support platform and symmetrically distributed, a movable rod sliding axially inside the fixed sleeve, and a limiting post fixed at the end of the movable rod that slides into the slot.

[0012] As a further embodiment of the present invention: the jacking assembly includes a hydraulic cylinder fixed on the support platform, the telescopic end of the hydraulic cylinder passing through the fixed sleeve and extending into the movable rod, a spring being installed inside the movable rod, and the two ends of the spring respectively abutting against the telescopic end of the hydraulic cylinder and the inner wall of the movable rod.

[0013] As a further embodiment of the present invention: the pressing component includes a follower rod hinged to the support plate and distributed parallel to the force-increasing rod, a connecting plate hinged to the follower rod and hinged to the force-increasing rod, and the connecting plate being fixedly connected to the limiting plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention forms circumferential support by engaging the first trapezoidal teeth and the second trapezoidal teeth with the first trapezoidal groove and the second trapezoidal groove, in conjunction with the axial downward pressure provided by the pressing component. If the impact force is small, under the action of the inclined surfaces of the first trapezoidal teeth and the second trapezoidal teeth, it can effectively resist the circumferential torsional force generated during tool cutting, ensuring that the upper toothed disk will not rotate. If the impact force is large, the upper toothed disk will rotate slightly, and under the interaction of the vertical surfaces between the teeth, a hard circumferential lock is achieved on the upper toothed disk, thereby ensuring that the upper toothed disk and the lower toothed disk will not separate under extreme conditions, preventing the spread of damage.

[0015] When the tool is impacted, the upper gear plate undergoes a slight upward displacement. This displacement, through the limiting plate and connecting plate, causes the force-amplifying rod to rotate slightly around the hinge point. According to the lever principle, the slight displacement at the short lever arm end is amplified into a larger displacement at the long lever arm end. Through the cooperation of the slot and the limiting post, the movable rod undergoes a larger downward movement, further compressing the spring. This causes the downward pressure of the limiting plate on the upper gear plate to increase rapidly. This not only buffers and absorbs energy when an impact occurs, but also quickly increases the locking force to offset the impact, allowing the upper gear plate to quickly reset and maintain a tight fit with the lower gear plate. This effectively prevents the tool holder from failing to lock due to impact. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of one embodiment of the impact-resistant locking mechanism for the tool post of a CNC horizontal lathe boring machine.

[0017] Figure 2 This is a schematic diagram showing the connection relationship between a portion of the translation component, a portion of the force-increasing oscillation mechanism, and a downward pressing component in one embodiment of the impact-resistant locking mechanism for the tool post of a CNC horizontal lathe boring machine.

[0018] Figure 3 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0019] Figure 4 This is a cross-sectional schematic diagram of the upper gear plate, lower gear plate, force-increasing eccentric mechanism, and downward pressure assembly in one embodiment of the impact-resistant locking mechanism for the tool post of a CNC horizontal lathe boring machine.

[0020] Figure 5 This is a front view schematic diagram of the force-increasing eccentricity mechanism, the lower pressure component, the upper gear plate, and the lower gear plate in one embodiment of the impact-resistant locking mechanism for the tool post of a CNC horizontal lathe boring machine.

[0021] Figure 6 This is an exploded structural diagram of the upper and lower gear discs in one embodiment of the impact-resistant locking mechanism for the tool post of a CNC horizontal lathe boring machine.

[0022] In the diagram: 1. Machine base; 101. Guide rail; 2. Three-jaw chuck; 3. Side push rod; 4. Transverse lead screw; 5. Guide column; 6. Movable table; 7. Sliding rail; 8. Longitudinal lead screw; 9. Support platform; 10. Lower gear plate; 1001. First trapezoidal groove; 1002. Second trapezoidal groove; 11. Upper gear plate; 1101. First trapezoidal tooth; 1102. Second trapezoidal tooth; 12. Turret; 13. Support plate; 14. Force booster rod; 1401. Slot; 15. Follower rod; 16. Connecting plate; 17. Limiting plate; 18. Fixed sleeve; 19. Movable rod; 20. Hydraulic cylinder; 21. Spring; 22. Limiting column. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Furthermore, elements in this invention are referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0025] Please see Figures 1-6 In this embodiment of the invention, a CNC horizontal lathe boring machine tool post anti-impact locking mechanism includes: The machine base 1 and the guide rail 101 fixed on the machine base 1, the guide rail 101 is slidably mounted with a side push rod 3, and the machine base 1 is also mounted with a three-jaw chuck 2. Also includes: A translation component is mounted on the machine base 1, and a support platform 9 is connected to the translation component; The lower gear disk 10 is fixed on the support platform 9, and the upper gear disk 11 is slidably mounted on the lower gear disk 10. A force-enhancing eccentric mechanism is provided on the support platform 9. A pressing component is provided on the force-enhancing eccentric mechanism. A limiting plate 17 is connected to the pressing component. When the force-enhancing eccentric mechanism moves, the pressing component can perform a pressing and locking action on the upper gear plate 11 through the limiting plate 17.

[0026] Specifically, a turret 12 is fixed on the upper gear plate 11, and a cutting tool is installed on the turret 12. During turning, the cutting tool will generate impact vibration when it comes into contact with the tube. In order to ensure machining accuracy, it is necessary to ensure that the tool holder is in a locked state. Therefore, when installing the tool holder, the upper gear plate 11 can be controlled to insert into the lower gear plate 10, and the upper and lower gear plates can be pressed together by means of hydraulic mechanism or cylinder. Furthermore, under the action of the force-increasing eccentric mechanism, the limiting plate 17 is controlled to abut against the upper gear plate 11 by the pressure-down component, thereby increasing the downward pressure provided to the upper gear plate 11, so that the upper gear plate 11 and the lower gear plate 10 fit tightly together. When the pipe needs to be turned, the pipe is clamped and fixed under the action of the three-jaw chuck 2 and the side push rod 3. At the same time, the translation component controls the movement of the support table 9, so that the tool moves to the position to be processed and performs turning. If the circumferential torsional force on the tool does not exceed the set value, the torsional force can be offset by the action of the upper gear plate 11 and the lower gear plate 10 to ensure the turning accuracy.

[0027] Please see Figure 1 , Figure 2 The translation component includes a transverse lead screw 4 rotatably mounted on the machine base 1, a guide column 5 fixed on the machine base 1 and distributed parallel to the transverse lead screw 4, a movable platform 6 slidably connected to the transverse lead screw 4 along the axial direction of the guide column 5, and a sliding rail 7 fixed on the movable platform 6, a longitudinal lead screw 8 rotatably mounted in the sliding rail 7, and a support platform 9 slidably connected to the sliding rail 7 and threadedly connected to the longitudinal lead screw 8.

[0028] Please see Figure 6 The upper end face of the lower gear disk 10 is formed with a first trapezoidal groove 1001 and a second trapezoidal groove 1002. The first trapezoidal groove 1001 and the second trapezoidal groove 1002 are circumferentially equidistantly staggered. The lower end face of the upper gear disk 11 is fixed with a first trapezoidal tooth 1101 and a second trapezoidal tooth 1102. The first trapezoidal tooth 1101 and the second trapezoidal tooth 1102 are circumferentially equidistantly staggered and are respectively engaged with the first trapezoidal groove 1001 and the second trapezoidal groove 1002.

[0029] Please see Figure 6In detail, the first trapezoidal groove 1001 and the second trapezoidal groove 1002 are right-angled trapezoids with similar dimensions and opposite directions of the right-angled sides. Accordingly, two corresponding protrusions are formed between the first trapezoidal groove 1001 and the second trapezoidal groove 1002, namely a rectangular protrusion and an isosceles trapezoidal protrusion. The first trapezoidal tooth 1101 and the second trapezoidal tooth 1102 are respectively similar in size to the first trapezoidal groove 1001 and the second trapezoidal groove 1002 and cooperate with each other. Two corresponding recesses are formed between the first trapezoidal tooth 1101 and the second trapezoidal tooth 1102, namely a rectangular recess and an isosceles trapezoidal recess. In order to ensure that the first trapezoidal tooth 1101 and the second trapezoidal tooth 1102 can be smoothly fitted into the first trapezoidal groove 1001 and the second trapezoidal groove 1002, the size of the corresponding rectangular protrusion can be slightly smaller than the size of the rectangular recess, forming an installation gap at the position of the rectangular protrusion and the rectangular recess. When the tool holder needs to be assembled, the upper gear plate 11 can be inserted into the lower gear plate 10. When it moves down, the first trapezoidal tooth 1101 is embedded in the first trapezoidal groove 1001, and the second trapezoidal tooth 1102 is embedded in the second trapezoidal groove 1002. At the same time, under the action of the force-increasing eccentric mechanism and the pressing component, the control limit plate 17 abuts against the upper gear plate 11 to fix the upper gear plate 11 on the lower gear plate 10. At this time, the pipe can be clamped and locked by the three-jaw chuck 2 and the side push rod 3. Then, drive the three-jaw chuck 2 to rotate, thereby driving the pipe to rotate along its own axis. Under the action of the longitudinal lead screw 8, the control support table 9 slides along the sliding track 7, and drives the turret 12 to move through the lower gear plate 10 and the upper gear plate 11, so that the tool moves to the position to be processed. Then, the transverse lead screw 4 rotates, controls the movable table 6 to slide along the guide column 5 axially, and drives the tool to move towards the direction of the pipe to start the turning process. When the cutting tool comes into contact with the tube, the impact force generated during the turning process will cause the tool holder to be subjected to circumferential torsional force. Since the two inclined surfaces of the first trapezoidal tooth 1101 and the second trapezoidal tooth 1102 are in opposite directions and are subjected to axial downward pressure, if the circumferential torsional force is within the set value, the circumferential torsional force cannot overcome the friction between the inclined surfaces and the wedging effect caused by the axial clamping force. Moreover, the inclined surfaces can disperse the stress generated by the impact, ensuring that there is no stress concentration problem between the upper gear plate 11 and the lower gear plate 10. If the circumferential torsional force is too large and exceeds the set value, the circumferential locking force generated by the inclined surfaces of the first trapezoidal tooth 1101 and the second trapezoidal tooth 1102 will fail under the action of the torsional force, causing the upper tooth disk 11 to rotate relative to the lower tooth disk 10, so that the right-angled surfaces of the rectangular protrusion and the rectangular concave abut against each other. In this way, the upper tooth disk 11 will be subject to hard circumferential locking, so that the upper tooth disk 11 will no longer rotate. In this state, since the right-angled sides of the first trapezoidal tooth 1101 and the second trapezoidal tooth 1102 are in opposite directions, it can be ensured that no matter which direction the torsional force is applied, when the installation gap is eliminated, there is a set of inclined surfaces and a set of right-angled surfaces that abut against each other to prevent the rectangular protrusion from being subjected to excessive stress.

[0030] Please see Figures 2-5 The force-enhancing oscillation mechanism includes a support plate 13 fixed on the support platform 9 and symmetrically distributed, a force-enhancing rod 14 hinged to the support plate 13, and a slot 1401 formed on the force-enhancing rod 14; it also includes a support assembly and a pushing assembly disposed on the support platform 9 and connected to the slot 1401. The support assembly includes a fixed sleeve 18 fixed on the support platform 9 and symmetrically distributed, a movable rod 19 axially sliding inside the fixed sleeve 18, and a limiting post 22 fixed at the end of the movable rod 19 that slides into the slot 1401. The pushing assembly includes a hydraulic cylinder 20 fixed on the support platform 9, the telescopic end of the hydraulic cylinder 20 passing through the fixed sleeve 18 and extending into the movable rod 19, and a spring 21 installed inside the movable rod 19, the two ends of the spring 21 abutting against the telescopic end of the hydraulic cylinder 20 and the inner wall of the movable rod 19, respectively.

[0031] Please see Figures 2-5 The pressing assembly includes a follower rod 15 hinged to the support plate 13 and distributed parallel to the force-increasing rod 14. A connecting plate 16 hinged to the follower rod 15 and hinged to the force-increasing rod 14 is fixedly connected to the limiting plate 17.

[0032] Furthermore, in the initial state, the extension end of the hydraulic cylinder 20 is in contact with the bottom of the movable rod 19, and under the action of the hydraulic cylinder 20, the movable rod 19 is located at the end of its stroke inserted into the fixed sleeve 18. The length of the spring 21 in its natural state is greater than the length of the movable rod 19. Therefore, the spring 21 is in a pre-compressed state and always provides the movable rod 19 with a thrust in the direction away from the fixed sleeve 18. Under the action of the movable rod 19, the force-boosting rod 14 is controlled to be in the maximum swing state by the limiting post 22 and the slot 1401, and the included angle between it and the support plate 13 is the maximum. The force-boosting rod 14 and the follower rod 15 are combined to form a parallelogram structure. Under the action of the force-boosting rod 14 and the follower rod 15, the limiting plate 17 is controlled to always be in a parallel state with the upper gear plate 11 by the connecting plate 16, and the limiting plate 17 is located at the end of its stroke in the direction away from the lower gear plate 10, and is in a misaligned state with the lower gear plate 10. At this time, the upper gear plate 11 can be installed. After installation, the hydraulic cylinder 20 works, and its extension end pushes the movable rod 19 away from the fixed sleeve 18 through the spring 21. The movable rod 19 drives the limiting post 22 to move synchronously. Under the cooperation of the limiting post 22 and the slot 1401, the force-boosting rod 14 rotates around its hinge point. The follower rod 15 also rotates synchronously around its own hinge point and remains parallel to the force-boosting rod 14, thereby driving the connecting plate 16 to move, so that the limiting plate 17 gradually moves towards the upper gear plate 11. Please see Figure 4 When the limiting plate 17 abuts against the upper surface of the upper gear plate 11, the limiting plate 17 applies an initial downward pressure to the upper gear plate 11, so that the upper gear plate 11 and the lower gear plate 10 fit tightly together. At this time, the hydraulic cylinder 20 continues to work, while the angle of the force-boosting rod 14 no longer changes, that is, the extension amount of the limiting post 22 and the movable rod 19 remains unchanged. In response, the continued extension of the hydraulic cylinder 20 will compress the spring 21, so that the compression amount of the spring 21 gradually increases, thereby gradually increasing the downward pressure of the limiting plate 17 on the upper gear plate 11 until the downward pressure reaches the set value, and the hydraulic cylinder 20 stops moving. When the cutting tool performs turning on the pipe and is subjected to a circumferential impact force, if the impact force is small, the upper gear 11 and the lower gear 10 remain in contact and there is no circumferential displacement. If the impact force is large, the upper gear 11 rotates circumferentially relative to the lower gear 10, and under the action of the inclined plane, the upper gear 11 slightly displaces axially away from the lower gear 10 until the installation gap is eliminated. This displacement, through the limiting plate 17 and the connecting plate 16, drives the force-increasing rod 14 to rotate around its hinge point. When the lever 14 rotates slightly around the hinge point, the small displacement at the end of the short lever arm will be amplified into a larger displacement at the end of the long lever arm. This will be achieved through the cooperation between the slot 1401 and the limit post 22, causing the movable rod 19 to move downwards significantly, thereby further compressing the spring 21. After the spring 21 is further compressed, the downward pressure provided by the limiting plate 17 to the upper gear plate 11 will increase. In this way, it can not only buffer the impact when the tool impact occurs and absorb the impact energy, but also quickly increase the locking force to offset the impact even when the original gear plate clamping mechanism fails, so that the upper gear plate 11 can quickly reset and maintain a tight fit with the lower gear plate 10. The turret 12 is equipped with multiple different cutting tools. When it is necessary to switch cutting tools, the hydraulic cylinder 20 moves in the opposite direction, causing the limit plate 17 to separate from the upper gear plate 11. At the same time, the upper gear plate 11 is pulled out of the lower gear plate 10 and separated. The turret 12 is then rotated to the position of the required cutting tool, and the upper gear plate 11 is reinserted into the lower gear plate 10. The above locking operation is repeated to complete the cutting tool switching.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An impact-resistant locking mechanism for the tool post of a CNC horizontal lathe boring machine, comprising: The machine base, and the guide rail fixed on the machine base, with a side push rod slidably installed on the guide rail, and a three-jaw chuck also installed on the machine base; Its characteristic is that it further includes: A translation component is mounted on the machine base, and a support platform is connected to the translation component. A lower gear disk is fixed on the support platform, and an upper gear disk is slidably mounted on the lower gear disk. A force-enhancing eccentric mechanism is mounted on the support platform. A pressing component is mounted on the force-enhancing eccentric mechanism. A limiting plate is connected to the pressing component. When the force-enhancing eccentric mechanism moves, the pressing component can perform a pressing and locking action on the upper gear plate through the limiting plate.

2. The impact-resistant locking mechanism for the tool post of a CNC horizontal lathe boring machine according to claim 1, characterized in that, The translation component includes a transverse lead screw rotatably mounted on the machine base, a guide column fixed on the machine base and distributed parallel to the transverse lead screw, and a movable table threadedly connected to the transverse lead screw and sliding axially on the guide column.

3. The impact-resistant locking mechanism for the tool post of a CNC horizontal lathe and boring machine according to claim 2, characterized in that, The translation component also includes a sliding rail fixed on the movable platform, a longitudinal lead screw rotatably installed in the sliding rail, the support platform being slidably connected to the sliding rail and threadedly connected to the longitudinal lead screw.

4. The impact-resistant locking mechanism for the tool post of a CNC horizontal lathe boring machine according to claim 1, characterized in that, The upper surface of the lower gear disk has a first trapezoidal groove and a second trapezoidal groove. The first trapezoidal groove and the second trapezoidal groove are circumferentially equidistant and staggered. The first trapezoidal groove and the second trapezoidal groove are right trapezoids and have opposite directions.

5. The impact-resistant locking mechanism for the tool post of a CNC horizontal lathe and boring machine according to claim 4, characterized in that, The lower end face of the upper gear disk is fixed with a first trapezoidal tooth and a second trapezoidal tooth. The first trapezoidal tooth and the second trapezoidal tooth are circumferentially equidistantly distributed and are respectively fitted into the shapes of the first trapezoidal groove and the second trapezoidal groove.

6. The impact-resistant locking mechanism for the tool post of a CNC horizontal lathe and boring machine according to claim 1, characterized in that, The force-increasing sway mechanism includes support plates fixed on the support platform and symmetrically distributed, with force-increasing rods hinged to the support plates and grooves formed on the force-increasing rods; It also includes a support assembly and a pushing assembly that are disposed on the support platform and connected to the slot.

7. The impact-resistant locking mechanism for the tool post of a CNC horizontal lathe boring machine according to claim 6, characterized in that, The support assembly includes fixed sleeves that are fixed on the support platform and symmetrically distributed. A movable rod slides axially inside the fixed sleeve, and a limiting post is fixed at the end of the movable rod to slide and engage with the slot.

8. The impact-resistant locking mechanism for the tool post of a CNC horizontal lathe and boring machine according to claim 7, characterized in that, The jacking assembly includes a hydraulic cylinder fixed on the support platform. The telescopic end of the hydraulic cylinder passes through the fixed sleeve and extends into the movable rod. A spring is installed inside the movable rod, and the two ends of the spring abut against the telescopic end of the hydraulic cylinder and the inner wall of the movable rod, respectively.

9. The impact-resistant locking mechanism for the tool post of a CNC horizontal lathe and boring machine according to claim 6, characterized in that, The pressing assembly includes a follower rod hinged to the support plate and distributed parallel to the force-increasing rod. A connecting plate hinged to the follower rod and the force-increasing rod is fixedly connected to the limiting plate.

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