A lathe chucking device for quick replacement of generator bed mounting positioning

Abstract

The application belongs to the technical field of lathe clamping devices, and particularly relates to a quick-change generator base installation positioning lathe clamping device, which comprises positioning sliding blocks and clamping sliding block assemblies; the clamping sliding block assemblies and the positioning sliding blocks are each provided with at least three; the clamping sliding block assemblies and the positioning sliding blocks are staggered and distributed on a workbench of the lathe; the positioning sliding blocks are in sliding connection with the workbench, and each positioning sliding block is threadedly connected with a first adjusting screw rod; the first adjusting screw rod is in rotary connection with the workbench; a gear ring is rotatably connected to the workbench, and the end of each first adjusting screw rod is fixed with a gear in meshing connection with the gear ring; the quick-change generator base installation positioning lathe clamping device further comprises inner support assemblies, and each clamping sliding block assembly corresponds to an inner support assembly; all the positioning sliding blocks are driven to move synchronously in the radial direction through a gear ring and gear linkage mechanism, and only a single screw rod needs to be adjusted to enable multiple positioning pins to synchronously contact the inner wall of the base to complete centering, so that the adjustment time during replacement of workpieces is greatly shortened, and the production efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the technical field of lathe clamping devices, specifically relating to a lathe clamping device for quick replacement of generator base mounting and positioning. Background Technology

[0002] As a key structural component of generator sets, the generator base is typically welded from a cylindrical body with flanges at both ends. Its machining accuracy directly affects the overall performance and assembly quality of the generator set. When machining the generator base on a vertical lathe, it needs to be fixed to the worktable using a clamping device. Traditional clamping methods generally employ multiple independently adjustable clamping slide assemblies, adjusting the position of each slide individually to achieve workpiece positioning and clamping. However, this method has the following drawbacks:

[0003] First, each slider requires individual manual adjustment, which is cumbersome and time-consuming. The adjustment time is excessively long when changing to different machine base specifications, severely impacting production efficiency. Second, due to the lack of a synchronization mechanism, even slight changes in any slider can cause workpiece center offset, resulting in poor positioning consistency and low repeatability. Third, the generator base is a thin-walled annular welded structure with insufficient rigidity. Excessive clamping force can cause cylinder deformation, while insufficient clamping force can easily lead to vibration or loosening under the radial cutting force of the cutting tool during machining, especially when machining the upper part due to its longer overhang, which is more prone to instability, seriously affecting machining quality and safety. Therefore, existing technologies cannot simultaneously meet the requirements of rapid changeover, high-precision positioning, and stable support. There is an urgent need for a dedicated clamping device that can achieve rapid positioning, synchronous adjustment, and adaptive internal support. Summary of the Invention

[0004] To address the aforementioned technical problems, the present invention provides a lathe clamping device for quickly changing the mounting and positioning of a generator base, which can quickly position and clamp the base.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0006] A lathe clamping device for quick-change generator mount positioning includes a positioning slider and a clamping slider assembly; there are at least three clamping slider assemblies and positioning sliders; the clamping slider assemblies and positioning sliders are staggered on the lathe worktable.

[0007] The positioning slider is slidably connected to the worktable, and each positioning slider is threadedly connected to a first adjusting screw; the first adjusting screw is rotatably connected to the worktable; a gear ring is rotatably connected to the worktable, and a gear meshing with the gear ring is fixed at the end of each first adjusting screw; a positioning pin is slidably connected to the positioning slider; a lifting cylinder is provided on the worktable, and a fixed cylinder is fixedly connected to the piston rod of the lifting cylinder, and a connecting rod is fixedly connected to the fixed cylinder, with the positioning pin slidably connected to the connecting rod;

[0008] It also includes an inner support assembly, with each clamping slider assembly corresponding to one inner support assembly; the inner support assembly includes a sliding plate and an inner support rod, the sliding plate is slidably connected to the worktable, and a first spring is provided between the sliding plate and the worktable; the inner support rod is detachably connected to the sliding plate; the fixed cylinder is provided with a linkage component that cooperates with the sliding plate.

[0009] The linkage component is a wedge-shaped block, which is fixedly connected to the fixed cylinder, and the end of the sliding plate is provided with a corresponding inclined surface.

[0010] The fixed cylinder is slidably connected to a friction cylinder, and a second spring is provided between the friction cylinder and the fixed cylinder; a friction ring is fixedly connected to the toothed ring; the piston rod of the lifting cylinder drives the fixed cylinder and the friction cylinder to move downward, so that the lower surface of the friction cylinder contacts the upper surface of the friction ring.

[0011] The clamping slider assembly includes a clamping seat and a clamping block. The clamping seat is slidably connected to the worktable and is provided with a fixing screw. The clamping block is slidably connected to the clamping seat, and a second adjusting screw is rotatably connected to the clamping seat. The clamping block is threadedly connected to the second adjusting screw.

[0012] The positioning slider is bolted to a support pad; the support pad has countersunk bolt holes.

[0013] The sliding plate is provided with a number of connection holes that connect to the inner support rod at intervals.

[0014] A third spring is provided inside the connecting hole; there is a clearance fit between the inner support rod and the connecting hole; a pressing component is provided on the fixed cylinder, which drives the inner support rod to move downward.

[0015] The pressing assembly includes a connecting shaft, a pressing plate, and a pressing rod. Each inner support rod corresponds to one pressing rod. The connecting shaft is fixedly connected to the fixed cylinder. The pressing plate is slidably connected to the connecting shaft. One end of the pressing rod is fixedly connected to the inner support rod, and the other end of the pressing rod is slidably connected to the pressing plate.

[0016] The pressing assembly also includes a connecting screw, and the other end of the pressing rod is provided with a connecting groove, through which the connecting screw passes and connects to the pressing plate.

[0017] The pressing assembly also includes a push rod, which is fixedly connected to a connecting seat, and a ball bearing is rotatably connected to the lower end of the push rod; the push rod drives the pressing plate to move downward.

[0018] Compared with the prior art, the beneficial effects of this invention are:

[0019] The gear ring and gear linkage mechanism drives all positioning sliders to move radially synchronously. Only a single screw needs to be adjusted to make multiple positioning pins contact the inner wall of the machine base simultaneously to complete the centering, which greatly shortens the adjustment time when changing workpieces and improves production efficiency.

[0020] Equipped with an internal support component, it can automatically apply a supporting force from inside the workpiece after clamping, forming a balance with the external clamping force, significantly enhancing the overall rigidity of the thin-walled machine base and preventing deformation caused by excessive clamping force or processing stress.

[0021] The "brake" mechanism, consisting of a friction cylinder and a friction ring, locks the gear ring during the machining stage to prevent vibration from causing displacement of the positioning slider. The inner support rod provides support when machining the upper part, and can automatically avoid the lower area when the cutting tool is machining, thus combining reliable support with unobstructed machining.

[0022] The support pad adopts a structure with waist-shaped holes, connecting holes and pressing components, which enables the device to adapt to different specifications of generator frames within a certain size range, making it highly versatile. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0024] Figure 2 This is a cross-sectional view of Embodiment 1 of the present invention;

[0025] Figure 3 yes Figure 2 A magnified view of a section at point C;

[0026] Figure 4 yes Figure 1 A magnified view of a section at point A in the middle;

[0027] Figure 5 This is a schematic diagram of the structure at the connection between the gear ring and the gear in this invention;

[0028] Figure 6 yes Figure 5 A magnified view of a section at point B in the middle;

[0029] Figure 7 This is a schematic diagram of the usage state of Embodiment 1 of the present invention;

[0030] Figure 8 This is a schematic diagram of the structure of the pressing component in one direction in Embodiment 2 of the present invention;

[0031] Figure 9 This is a schematic diagram of the pressing component from another direction in Embodiment 2 of the present invention;

[0032] Figure 10 This is a schematic diagram of the connection structure between the push rod and the tool holder in Embodiment 2 of the present invention;

[0033] Figure 11 This is a schematic diagram of the overall structure of Embodiment 2 of the present invention;

[0034] Figure 12 This is a cross-sectional view of Embodiment 2 of the present invention;

[0035] Figure 13 yes Figure 12 A magnified view of a section at point D;

[0036] Wherein: 1 is the positioning slider, 2 is the clamping slider assembly, 20 is the clamping seat, 21 is the clamping block, 22 is the fixing screw, 23 is the second adjusting screw, 3 is the worktable, 4 is the first adjusting screw, 5 is the gear ring, 6 is the gear, 7 is the positioning pin, 8 is the lifting cylinder, 9 is the fixing cylinder, 10 is the connecting rod, 11 is the inner support assembly, 110 is the sliding plate, 111 is the inner support rod, 112 is the first spring, 113 is the linkage component, 12 is the friction cylinder, 120 is the second spring, 13 is the friction ring, 14 is the support pad, 15 is the connecting hole, 16 is the third spring, 17 is the pressing assembly, 170 is the connecting shaft, 171 is the pressing plate, 172 is the pressing rod, 173 is the connecting screw, 174 is the connecting groove, 175 is the push rod, 176 is the ball, 177 is the connecting seat, 18 is the generator base, and 19 is the tool holder. Detailed Implementation

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0038] Example 1

[0039] like Figure 1 As shown, a lathe clamping device for quick replacement of generator base mounting and positioning includes a positioning slider 1 and a clamping slider assembly 2; both the clamping slider assembly 2 and the positioning slider 1 are provided with at least three; the clamping slider assembly 2 and the positioning slider 1 are staggered on the lathe's worktable 3, specifically referring to a vertical machine tool.

[0040] The existing clamping slider assembly 2 is individually adjustable; the positioning and clamping of the generator base 18 are achieved by adjusting the position of each clamping slider assembly 2 individually. This method is difficult to adjust, as the position of the generator base 18 is not fixed, and any change in the position of any clamping slider assembly 2 will affect the positioning of the generator base 18.

[0041] This device uses the positioning slider 1 to quickly position the generator base 18, reducing the time required to replace parts (generator base 18). The generator base 18 is clamped by the clamping slider assembly 2, and then machined on a vertical machine tool.

[0042] like Figure 4 , Figure 5 and Figure 6 As shown, the positioning slider 1 is slidably connected to the worktable 3, and each positioning slider 1 is threadedly connected to a first adjusting screw 4; the first adjusting screw 4 is rotatably connected to the worktable 3; by rotating the first adjusting screw 4, the corresponding positioning slider 1 can be moved along the worktable 3.

[0043] A gear ring 5 is rotatably connected to the worktable 3, and a gear 6 that meshes with the gear ring 5 is fixed to the end of each first adjusting screw 4. When any one of the first adjusting screws 4 rotates, the meshing of the gear ring 5 and the gear 6 will drive the other first adjusting screws 4 to rotate, thereby realizing the synchronous movement of the other positioning sliders 1.

[0044] like Figure 2 and Figure 3 As shown, a positioning pin 7 is slidably connected to the positioning slider 1. The positioning pin 7 contacts the inner wall of the generator base 18, enabling rapid positioning of the generator base 18. A lifting cylinder 8 is provided on the worktable 3. The cylinder body of the lifting cylinder 8 is fixedly connected to the worktable 3. A fixed cylinder 9 is fixedly connected to the piston rod of the lifting cylinder 8. A connecting rod 10 is fixedly connected to the fixed cylinder 9. The positioning pin 7 is slidably connected to the connecting rod 10 (this can be achieved through a dovetail groove or similar method). When the piston rod of the lifting cylinder 8 extends and retracts, causing the fixed cylinder 9 to move up and down, the positioning pin 7 will also move up and down accordingly. Furthermore, because the positioning pin 7 is slidably connected to the connecting rod 10, it will not obstruct the movement of the positioning slider 1.

[0045] The main structure of the generator base 18 is formed by welding flanges to both ends of a cylindrical body. After the generator base 18 is clamped, its structure results in insufficient support at the clamping point. Especially when machining the upper part of the generator base 18, the external force from the cutting tool may cause the generator base 18 to tilt and loosen. However, if the applied clamping force is too large, the clamped part may deform.

[0046] Therefore, as Figure 2 As shown, an inner support assembly 11 is also provided. Each clamping slider assembly 2 corresponds to one inner support assembly 11. The inner support assembly 11 provides support for the inside of the generator base 18, which can provide outward force from the inside; thus avoiding excessive clamping force applied by the clamping slider assembly 2, which could cause deformation of the generator base 18.

[0047] The inner support assembly 11 includes a sliding plate 110 and an inner support rod 111. The sliding plate 110 is slidably connected to the worktable 3, and a first spring 112 is provided between the sliding plate 110 and the worktable 3. The inner support rod 111 is detachably connected to the sliding plate 110. The fixed cylinder 9 is provided with a linkage 113 that cooperates with the sliding plate 110. When the fixed cylinder 9 moves downward, the linkage 113 drives the sliding plate 110 to move outward (the first spring 112 is compressed), causing the inner support rod 111 to contact the inner wall of the generator base 18, thereby providing an outward force. When the fixed cylinder 9 moves upward, the first spring 112 releases its elastic potential energy, pushing the sliding plate 110 to move inward and reset.

[0048] like Figure 7 As shown, when replacing the generator base 18, the generator base 18 is placed on the positioning slider 1, which supports the generator base 18. Then, by rotating any of the first adjusting screws 4, each positioning slider 1 moves outward, contacting the inner wall of the generator base 18 through the positioning pin 7, thereby pushing the generator base 18 to move and achieving rapid positioning. After positioning, the generator base 18 is clamped by the clamping slider assembly 2. After clamping, the piston rod of the lifting cylinder 8 retracts, driving the fixed cylinder 9 and the positioning pin 7 to move downward, so that the positioning pin 7 does not contact the inner wall of the generator base 18; at the same time, the sliding plate 110 is driven to move outward through the linkage 113, so that the inner support rod 111 contacts the inner wall of the generator base 18, thereby providing an outward force.

[0049] Because the positioning pin 7 and the clamping slider assembly 2 are staggered, the positioning pin 7 applies an outward force to the generator base 18, which will exacerbate the deformation of the generator base 18. However, with the above structural arrangement, during positioning, the piston rod of the lifting cylinder 8 drives the fixed cylinder 9 and the positioning pin 7 to move upward and contact the inner wall of the generator base 18 for positioning; after clamping, the positioning pin 7 moves downward, and the inner support rod 111 moves outward to provide support, thereby improving the stability of the clamping.

[0050] Furthermore, such as Figure 3 As shown, the linkage 113 is a wedge-shaped block, which is fixedly connected to the fixed cylinder 9. The end of the sliding plate 110 is provided with a corresponding inclined surface. The fixed cylinder 9 drives the wedge-shaped block to move downward, so that it contacts the inclined surface at the end of the sliding plate 110, thereby pushing the sliding plate 110 to move outward.

[0051] Furthermore, such as Figure 2 and Figure 3As shown, a friction cylinder 12 is slidably connected to a fixed cylinder 9, and the friction cylinder 12 can only slide up and down along the fixed cylinder 9. A second spring 120 is provided between the friction cylinder 12 and the fixed cylinder 9; a friction ring 13 is fixedly connected to the gear ring 5. After clamping, the piston rod will drive the fixed cylinder 9 and the friction cylinder 12 to move downward. At this time, the lower surface of the friction cylinder 12 contacts the upper surface of the friction ring 13, thereby providing resistance to prevent the gear ring 5 from rotating arbitrarily and to prevent unnecessary displacement of the positioning slider 1 due to vibration during processing, thus playing a "brake" fixing role.

[0052] Furthermore, such as Figure 1 , Figure 2 and Figure 7 As shown, the clamping slider assembly 2 includes a clamping seat 20 and a clamping block 21. The clamping seat 20 is slidably connected to the worktable 3. The position of the clamping seat 20 can be adjusted as needed to maintain a certain distance between it and the generator base 18. After adjustment, tighten the fixing screw 22. The fixing screw 22 passes through the clamping seat 20 and abuts against the worktable 3, thereby fixing the adjusted position of the clamping seat 20.

[0053] The clamping block 21 is slidably connected to the clamping seat 20, and a second adjusting screw 23 is rotatably connected to the clamping seat 20. The clamping block 21 is threadedly connected to the second adjusting screw 23. By rotating the second adjusting screw 23, the clamping block 21 can be moved along the clamping seat 20 until it contacts the outer surface of the generator base 18 and applies pressure to it.

[0054] Furthermore, such as Figure 7 As shown, a support pad 14 is bolted to the positioning slider 1; the support pad 14 is provided with countersunk bolt holes. Specifically, the countersunk bolt holes are oblong holes, meaning that the support pad 14 can be adjusted within a certain range as needed to ensure that it has sufficient contact range with the generator base 18.

[0055] The support pad 14 can increase the distance between the bottom of the generator base 18 and the positioning slider 1, leaving enough machining space for the cutting tool.

[0056] Furthermore, such as Figure 2 As shown, a number of connection holes 15 for connecting to the inner support rods 111 are provided at intervals on the sliding plate 110. The inner support rods 111 can be inserted into different connection holes 15 to adjust the position of the inner support rods 111 and adapt to changes in the size of the generator base 18 within a certain range.

[0057] Example 2

[0058] The inner support rod 111 in Embodiment 1 is mainly provided to provide sufficient outward force when machining the upper part of the generator base 18; however, when machining the bottom of the generator base 18, the inner support rod 111 will obstruct the cutting tool. Therefore, a pressing assembly 17 is also provided, which is mounted on the fixed cylinder 9; a third spring 16 is provided in the connecting hole 15; and there is a clearance fit between the inner support rod 111 and the connecting hole 15.

[0059] When the cutting tool of the vertical lathe moves to the bottom of the generator base 18, the inner support rod 111 moves down through the pressing assembly 17, preventing the inner support rod 111 from contacting the inner wall of the generator base 18 and thus avoiding obstruction to the cutting tool. Moreover, since the machining position is close to the clamping slide assembly 2, the clamping slide assembly 2 is sufficient to ensure clamping stability.

[0060] Furthermore, such as Figures 8 to 13 As shown, the pressing assembly 17 includes a connecting shaft 170, a pressing plate 171, and a pressing rod 172. Each inner support rod 111 corresponds to one pressing rod 172. The connecting shaft 170 is fixedly connected to the fixed cylinder 9. The pressing plate 171 is slidably connected to the connecting shaft 170. One end of the pressing rod 172 is fixedly connected to the inner support rod 111, and the other end of the pressing rod 172 is slidably connected to the pressing plate 171.

[0061] When the tool holder 19 of the vertical lathe tool moves down and contacts the pressure plate 171, it will drive the pressure plate 171, the pressure rod 172 and the inner support rod 111 to move down accordingly, so that the inner support rod 111 gradually separates from the inner wall of the generator base 18, leaving enough machining space for the tool.

[0062] Furthermore, a sliding connection between the pressure rod 172 and the pressure plate 171 can be achieved through various structures. For example, the following structural configuration can be used:

[0063] like Figure 8 and Figure 9 As shown, the pressing assembly 17 also includes a connecting screw 173, and the other end of the pressing rod 172 is provided with a connecting groove 174. The connecting screw 173 passes through the connecting groove 174 and connects to the pressing plate 171. After the connecting screw 173 is connected, there is a certain gap between the head of the connecting screw 173 and the pressing rod 172 to ensure the normal sliding of the pressing rod 172.

[0064] When it is necessary to change the position of the inner support rod 111, remove the connecting screw 173 to take out the lower pressure rod 172 and the inner support rod 111; then insert the inner support rod 111 into the corresponding connecting hole 15; and then connect the lower pressure rod 172 to the lower pressure plate 171 with the connecting screw 173.

[0065] Furthermore, the aforementioned structural arrangement involves the tool holder 19 contacting the lower pressure plate 171 to move the lower pressure plate 171 downwards; this method will cause wear to the tool holder 19. Therefore, as... Figure 10 and 11 As shown, the pressing assembly 17 also includes a push rod 175, which is fixedly connected to a connecting seat 177. The connecting seat 177 is used to fixally connect to the tool holder 19, specifically by means of bolt connection.

[0066] A ball bearing 176 is rotatably connected to the lower end of the push rod 175; when the tool holder 19 moves downward, it will drive the push rod 175 to move downward accordingly; the ball bearing 176 on the push rod 175 will contact the lower pressure plate 171, and the resistance will be reduced by the rotation of the ball bearing 176. When the push rod 175 moves downward, it will drive the lower pressure plate 171, the lower pressure rod 172, and the inner support rod 111 to move downward.

[0067] The above description only illustrates preferred embodiments of the present invention, but the present invention is not limited to the above embodiments.

Claims

1. A lathe clamping device for quick-changing generator base mounting and positioning, characterized in that: It includes a positioning slider (1) and a clamping slider assembly (2); there are at least three clamping slider assemblies (2) and positioning sliders (1); the clamping slider assemblies (2) and positioning sliders (1) are staggered on the lathe's worktable (3); The positioning slider (1) is slidably connected to the worktable (3), and each positioning slider (1) is threadedly connected to a first adjusting screw (4); the first adjusting screw (4) is rotatably connected to the worktable (3); a gear ring (5) is rotatably connected to the worktable (3), and a gear (6) that meshes with the gear ring (5) is fixed at the end of each first adjusting screw (4); a positioning pin (7) is slidably connected to the positioning slider (1); a lifting cylinder (8) is provided on the worktable (3), and a fixed cylinder (9) is fixedly connected to the piston rod of the lifting cylinder (8), and a connecting rod (10) is fixedly connected to the fixed cylinder (9), and the positioning pin (7) is slidably connected to the connecting rod (10); It also includes an inner support assembly (11), with each clamping slider assembly (2) corresponding to one inner support assembly (11); the inner support assembly (11) includes a sliding plate (110) and an inner support rod (111), the sliding plate (110) is slidably connected to the worktable (3), and a first spring (112) is provided between the sliding plate (110) and the worktable (3); the inner support rod (111) is detachably connected to the sliding plate (110); the fixed cylinder (9) is provided with a linkage (113) that cooperates with the sliding plate (110). The fixed cylinder (9) is slidably connected to the friction cylinder (12), and a second spring (120) is provided between the friction cylinder (12) and the fixed cylinder (9); a friction ring (13) is fixedly connected to the toothed ring (5); the piston rod of the lifting cylinder (8) drives the fixed cylinder (9) and the friction cylinder (12) to move down, so that the lower surface of the friction cylinder (12) contacts the upper surface of the friction ring (13).

2. The lathe clamping device for quick replacement of generator base mounting and positioning according to claim 1, characterized in that: The linkage component (113) is a wedge-shaped block, which is fixedly connected to the fixed cylinder (9). The end of the sliding plate (110) is provided with a corresponding inclined surface.

3. The lathe clamping device for quick replacement of generator base mounting and positioning according to claim 1, characterized in that: The clamping slider assembly (2) includes a clamping seat (20) and a clamping block (21). The clamping seat (20) is slidably connected to the worktable (3), and a fixing screw (22) is provided on the clamping seat (20). The clamping block (21) is slidably connected to the clamping seat (20), and a second adjusting screw (23) is rotatably connected to the clamping seat (20). The clamping block (21) is threadedly connected to the second adjusting screw (23).

4. The lathe clamping device for quick replacement of generator base mounting and positioning according to claim 1, characterized in that: The positioning slider (1) is bolted to a support pad (14); the support pad (14) is provided with countersunk bolt holes.

5. The lathe clamping device for quick replacement of generator base mounting and positioning according to claim 1, characterized in that: The sliding plate (110) is provided with a number of connection holes (15) that are connected to the inner support rod (111) at intervals.

6. The lathe clamping device for quick-change generator base mounting and positioning according to claim 5, characterized in that: A third spring (16) is provided inside the connecting hole (15); there is a clearance fit between the inner support rod (111) and the connecting hole (15); a pressing component (17) is provided on the fixed cylinder (9), and the inner support rod (111) is moved down by the pressing component (17).

7. A lathe clamping device for quick-change generator base mounting and positioning according to claim 6, characterized in that: The pressing assembly (17) includes a connecting shaft (170), a pressing plate (171), and a pressing rod (172). Each inner support rod (111) corresponds to one pressing rod (172). The connecting shaft (170) is fixedly connected to the fixed cylinder (9). The pressing plate (171) is slidably connected to the connecting shaft (170). One end of the pressing rod (172) is fixedly connected to the inner support rod (111), and the other end of the pressing rod (172) is slidably connected to the pressing plate (171).

8. A lathe clamping device for quick replacement of generator base mounting and positioning according to claim 7, characterized in that: The pressing assembly (17) also includes a connecting screw (173), and the other end of the pressing rod (172) is provided with a connecting groove (174). The connecting screw (173) passes through the connecting groove (174) and connects to the pressing plate (171).

9. A lathe clamping device for quick-change generator base mounting and positioning according to claim 7, characterized in that: The pressing assembly (17) also includes a push rod (175), which is fixedly connected to a connecting seat (177). A ball bearing (176) is rotatably connected to the lower end of the push rod (175). The pressing plate (171) is moved down by the push rod (175).

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