Waterwheel type machine tool capable of quickly replacing clamp

Abstract

A waterwheel type machine tool with a clamp capable of being rapidly replaced comprises a clamp body and a clamping device arranged at the upper end of the clamp body, and the clamping device comprises moving seats located on the left side and the right side of the upper portion of the clamp body; a fixed seat matched with the movable seat is arranged on the upper surface of the movable seat; clamping modules are arranged on the side walls of the opposite sides of the fixing seats on the left side and the right side; the clamping module is positioned on the fixed seat through a positioning structure; a plurality of evenly-distributed screw holes are formed in the side wall of the side, attached to the fixing base, of the clamping module. A plurality of through holes coaxial with the screw holes are formed in the fixed seat; a driving mechanism matched with the moving seat is arranged in the clamp body and can control the moving seat to move left and right. According to the waterwheel type machine tool with the clamp capable of being rapidly replaced, positioning can be achieved, the situation that position deviation occurs after the clamping module is replaced is avoided, the positioning efficiency can be effectively guaranteed, and therefore the replacement efficiency is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of waterwheel type machine tools, in particular to a waterwheel type machine tool capable of quickly replacing clamps. Background Art

[0002] The waterwheel type machine tool is a machine tool that realizes mechanical processing through water power transmission, but its overall structure is similar to that of ordinary machine tools. It needs to use a fixture. The workpiece can be processed only after it is clamped by the fixture. The component on the fixture that is actually responsible for clamping the workpiece is the clamping module. In the actual processing process, the clamping module will need to be replaced due to various reasons, such as wear or damage. Although the clamping module is directly fixed to the fixture with screws, it is easy to disassemble. However, when replacing a new clamping module, it is necessary to use an auxiliary positioning device to position the clamping module before it can be fixed with screws. If it is directly screwed into the screw hole, it will be difficult to fix it. The screw is fixed in this way. During the screwing process, the screw may easily become eccentric due to improper force, which will eventually cause the position of the clamping module to deviate. Once the position of the clamping module deviates, the original clamped position of the workpiece will not match the clamping module, which will not only make the workpiece difficult to clamp, but also cause damage to the workpiece. If the workpiece is processed when the clamping module position deviates, the workpiece processing accuracy will be affected and the workpiece processing quality cannot be guaranteed. Although the auxiliary positioning device can position the clamping module, the positioning process is relatively cumbersome, which seriously affects the replacement efficiency. Summary of the Invention

[0003] The utility model aims to solve the existing technical problem by providing a waterwheel-type machine tool that can quickly replace the clamp, which can not only achieve positioning and avoid position deviation after replacing the clamping module, but also effectively ensure positioning efficiency, thereby effectively ensuring replacement efficiency.

[0004] The technical solution adopted by the utility model to solve the above technical problems is:

[0005] The utility model discloses a waterwheel-type machine tool with which a clamp can be quickly replaced, comprising a clamp body and a clamping device arranged at the upper end of the clamp body, the clamping device comprising movable seats located on the left and right sides above the clamp body; a fixed seat matching the movable seat is provided on the upper surface of the movable seat; side walls of the fixed seats on the left and right sides opposite to each other are both provided with clamping modules; the clamping modules are positioned on the fixed seat by a positioning structure; a side wall of the clamping module that is in contact with the fixed seat is provided with a plurality of evenly distributed screw holes; the fixed seat is provided with a plurality of through holes coaxial with the screw holes; a driving mechanism matching the movable seat is provided in the clamp body, and the driving mechanism can control the movable seat to move left and right.

[0006] The positioning structure includes a front positioning groove, a rear positioning groove, an upper positioning groove, and a lower positioning groove provided on the side wall on which the fixing seat and the clamping module are in contact; the front positioning groove is provided on the front side of the fixing seat, the rear positioning groove is provided on the rear side of the fixing seat, the upper positioning groove is provided on the upper side of the fixing seat, and the lower positioning groove is provided on the lower side of the fixing seat; a front positioning protrusion matching the front positioning groove, a rear positioning protrusion matching the rear positioning groove, an upper positioning protrusion matching the upper positioning groove, and a lower positioning protrusion matching the lower positioning groove are provided on the side wall on which the clamping module and the fixing seat are in contact.

[0007] The front positioning groove and the front positioning protrusion are both arc-shaped and have the same curvature; the rear positioning groove and the rear positioning protrusion are both arc-shaped and have the same curvature; the upper positioning groove and the upper positioning protrusion are both arc-shaped and have the same curvature; the lower positioning groove and the lower positioning protrusion are both arc-shaped and have the same curvature.

[0008] A hidden hole that is in communication with the through hole is provided on a side wall of the fixing seat away from the clamping module, and the diameter of the hidden hole is larger than the diameter of the through hole.

[0009] One of the screw holes is the center screw hole, which is located at the intersection of the upper positioning protrusion, the lower positioning protrusion, the front positioning protrusion and the rear positioning protrusion, and the center screw hole passes through the clamping module horizontally; the intersection of the upper positioning protrusion and the front positioning protrusion, the intersection of the upper positioning protrusion and the rear positioning protrusion, the intersection of the lower positioning protrusion and the front positioning protrusion, and the intersection of the lower positioning protrusion and the rear positioning protrusion are all provided with a chip groove, and the chip groove is connected to the center screw hole.

[0010] The driving mechanism includes a piston cavity provided in the clamp body; a piston matching it is provided in the piston cavity; a movable hole communicating with the piston cavity is provided at the center of the upper surface of the clamp body; a piston rod is provided at the center of the upper surface of the piston; the upper end of the piston rod extends upward out of the movable hole and is provided with a traction piece matching the clamping device; a loosening oil circuit communicating with the lower end of the piston cavity and a clamping oil circuit communicating with the upper end of the piston cavity are provided on the clamp body.

[0011] The clamping device also includes a seat plate arranged at the upper end of the clamp body; a driving port corresponding to the position of the traction member is provided in the middle of the seat plate; symmetrical swing arms are hinged on the left and right sides of the driving port; the lower surface of the movable seat is in contact with the upper surface of the seat plate; the front and rear sides of the movable seat are provided with symmetrical guide parts; the front and rear sides of the upper surface of the seat plate are provided with symmetrical baffles, the inner walls of the baffles are in contact with the outer walls of the guide parts; the upper surface of the baffle is provided with a limiting plate in contact with the upper surface of the guide part; the traction member is in the shape of an I, and the middle part of the traction member has an annular groove; the lower surface of the movable seat is provided with a pressure groove corresponding to the position of the swing arm; the swing arm is in the shape of a "√", one end of the swing arm is stuck in the pressure groove, and the other end of the swing arm is stuck in the groove.

[0012] The upper surfaces of the front and rear limit plates are connected by a protective plate, and the lower surface of the protective plate is in contact with the upper surface of the movable seat; the width of the protective plate is greater than the distance between the movable seats on the left and right sides.

[0013] The beneficial effects of the utility model are:

[0014] Compared with the existing technology, the waterwheel-type machine tool with quickly replaceable clamps adopting the structure of the utility model can effectively form four positionings through the cooperation between the upper positioning protrusion and the upper positioning groove, the cooperation between the lower positioning protrusion and the lower positioning groove, the cooperation between the front positioning protrusion and the front positioning groove, and the cooperation between the rear positioning protrusion and the rear positioning groove, which can effectively realize the rapid positioning of the clamping module. At this time, it is only necessary to fix the clamping module on the fixed seat with screws. No special positioning device is required in the entire positioning process, which reduces a lot of trouble and effectively ensures positioning efficiency, thereby effectively reducing the time for replacing a new clamping module and improving replacement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a cross-sectional view of a waterwheel-type machine tool capable of quickly replacing fixtures according to the present invention;

[0016] Figure 2 It is a structural diagram of the clamping module;

[0017] Figure 3 It is a structural diagram of the fixed seat;

[0018] Figure 4 This is a structural diagram of a waterwheel-type machine tool capable of quickly replacing fixtures according to the present invention;

[0019] Figure 5 This is a schematic structural diagram of a waterwheel-type machine tool capable of quickly replacing clamps according to the present invention, when a workpiece is clamped between the left and right clamping modules;

[0020] Figure 6 It is a structural diagram of the mobile seat;

[0021] Figure 7 It is a structural diagram of the seat plate;

[0022] Figure 8 It is a structural diagram of the swing arm. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0024] See also Figures 1 to 8 The utility model provides a waterwheel-type machine tool that can quickly replace fixtures, including a fixture body 1 and a clamping device arranged at the upper end of the fixture body 1, the clamping device including movable seats 201 located on the left and right sides above the fixture body 1; the upper surface of the movable seat 201 is provided with a fixed seat 3 matching it; the side walls of the fixed seats 3 on the left and right sides opposite to each other are both provided with clamping modules 4; the clamping modules 4 are positioned on the fixed seat 3 through a positioning structure; the side wall of the clamping module 4 that fits with the fixed seat 3 is provided with a plurality of evenly distributed screw holes 5; the fixed seat 3 is provided with a plurality of through holes 6 coaxial with the screw holes 5; the fixture body 1 is provided with a driving mechanism matching the movable seat 201, and the driving mechanism can control the movable seat 201 to move left and right.

[0025] The positioning structure includes a front positioning groove 7, a rear positioning groove 8, an upper positioning groove 10, and a lower positioning groove 11 provided on the side wall on which the fixing seat 3 and the clamping module 4 are in contact; the front positioning groove 7 is provided on the front side of the fixing seat 3, the rear positioning groove 8 is provided on the rear side of the fixing seat 3, the upper positioning groove 10 is provided on the upper side of the fixing seat 3, and the lower positioning groove 11 is provided on the lower side of the fixing seat 3; a front positioning protrusion 12 matching the front positioning groove 7, a rear positioning protrusion 13 matching the rear positioning groove 8, an upper positioning protrusion 14 matching the upper positioning groove 10, and a lower positioning protrusion 15 matching the lower positioning groove 11 are provided on the side wall on which the clamping module 4 and the fixing seat 3 are in contact.

[0026] The front positioning groove 7 and the front positioning protrusion 12 are both arc-shaped and have the same curvature; the rear positioning groove 8 and the rear positioning protrusion 13 are both arc-shaped and have the same curvature; the upper positioning groove 10 and the upper positioning protrusion 14 are both arc-shaped and have the same curvature; the lower positioning groove 11 and the lower positioning protrusion 15 are both arc-shaped and have the same curvature.

[0027] A hidden hole 16 that is in communication with the through hole 6 is provided on a side wall of the fixing seat 3 away from the clamping module 4 . The diameter of the hidden hole 16 is larger than that of the through hole 6 .

[0028] One of the screw holes 5 is a central screw hole, which is located at the intersection of the upper positioning protrusion 14, the lower positioning protrusion 15, the front positioning protrusion 12 and the rear positioning protrusion 13, and the central screw hole passes through the clamping module 4 horizontally; the intersection of the upper positioning protrusion 14 and the front positioning protrusion 12, the intersection of the upper positioning protrusion 14 and the rear positioning protrusion 13, the intersection of the lower positioning protrusion 15 and the front positioning protrusion 12, and the intersection of the lower positioning protrusion 15 and the rear positioning protrusion 13 are all provided with a chip groove 17, and the chip groove 17 is connected to the central screw hole.

[0029] The driving mechanism includes a piston cavity 901 provided in the clamp body 1; a piston 902 matching it is provided in the piston cavity 901; a movable hole 903 communicating with the piston cavity 901 is provided in the center of the upper surface of the clamp body 1; a piston rod 904 is provided in the center of the upper surface of the piston 902; the upper end of the piston rod 904 extends upward to the outside of the movable hole 903 and is provided with a traction member 905 matching the clamping device; a loosening oil circuit 906 communicating with the lower end of the piston cavity 901 and a clamping oil circuit 907 communicating with the upper end of the piston cavity 901 are provided on the clamp body 1.

[0030] The clamping device also includes a seat plate 202 provided at the upper end of the clamp body 1; a driving port 203 corresponding to the position of the traction member 905 is provided in the middle of the seat plate 202; symmetrical swing arms 204 are hinged on the left and right sides of the driving port 203; the lower surface of the movable seat 201 is in contact with the upper surface of the seat plate 202; the movable seat 201 is provided with symmetrical guide portions 205 on the front and rear sides; and the upper surface of the seat plate 202 is provided with symmetrical blocking bars 206 on the front and rear sides. The inner wall of the baffle 206 is in contact with the outer wall of the guide part 205; the upper surface of the baffle 206 is provided with a limit plate 207 which is in contact with the upper surface of the guide part 205; the traction member 905 is in an I-shape, and a ring groove 208 is provided in the middle of the traction member 905; the lower surface of the movable seat 201 is provided with a pressure groove 209 corresponding to the position of the swing arm 204; the swing arm 204 is in a "√" shape, one end of the swing arm 204 is stuck in the pressure groove, and the other end of the swing arm 204 is stuck in the groove.

[0031] The upper surfaces of the front and rear limiting plates 207 are connected by a protective plate 210, and the lower surface of the protective plate 210 is in contact with the upper surface of the movable seat 201; the width of the protective plate 210 is greater than the distance between the left and right movable seats 201.

[0032] The method of using the utility model is as follows:

[0033] Since the position where the clamping oil circuit 907 intersects with the piston chamber 901 is higher than the position of the piston 902, and the position where the loosening oil circuit 906 intersects with the piston chamber 901 is lower than the position of the piston 902, the piston 902 can be moved downward by simply injecting hydraulic oil into the piston chamber 901 through the clamping oil circuit 907, and the piston 902 can be moved upward by injecting hydraulic oil into the piston chamber 901 through the loosening oil circuit 906.

[0034] When the piston 902 moves upward, the piston rod 904 will drive the traction member 905 to move upward synchronously, and one end of the swing arm 204 is stuck in the annular groove 208 of the traction member 905, and the other end is stuck in the pressure groove 209 on the lower surface of the moving seat 201. Therefore, when the traction member 905 moves upward, the traction member 905 will drive one end of the swing arm 204 to move upward. At this time, the swing arm 204 swings around its own hinge point, and the other end of the swing arm 204 pushes the moving seat through the inner wall of the pressure groove 209, so that the moving seat The seat 201 moves in the direction away from the axis of the fixture body 1. At this time, the distance between the clamping modules 4 fixed on the fixed seats 3 on the left and right sides continues to increase, so as to facilitate the placement of the workpiece between the clamping modules 4 on the left and right sides. When the movable seat 201 moves, the guide part 205 moves synchronously, and the guide part 205 is located between the upper surface of the seat plate 202 and the lower surface of the limit plate 207. At this time, the moving trajectory of the guide part 205 is restricted, thereby effectively ensuring the stability of the movable seat 201 during movement.

[0035] When it is necessary to clamp the workpiece 18 between the clamping modules 4 on the left and right sides, the piston 902 can be moved downward. When the piston 902 moves downward, the piston rod 904 will drive the traction member 905 to move downward, thereby making the movable seats 201 on the left and right sides approach each other through the swing arm 204. When the movable seats 201 on the left and right sides approach each other, the clamping modules 4 on the left and right sides approach synchronously, and the gap between the two becomes smaller and smaller, so that the workpiece is clamped by the clamping modules 4 on the left and right sides. After the workpiece is clamped, it can be processed by the processing device on the waterwheel-type machine tool, and finally the processing of the workpiece is completed.

[0036] The fixing base 3 and the clamping module 4 can be fixed by simply passing the screw through the through hole 6 on the fixing base 3 and then screwing it into the screw hole 5 on the clamping module 4. In order to avoid position deviation of the clamping module 4 after it is fixed on the fixing base 3, it is necessary to position the clamping module 4 before fixing it. At this time, the new clamping module 4 in an independent state can be brought close to the fixing base 3, and then the upper positioning protrusion 14 is opposite to the upper positioning groove 10, the lower positioning protrusion 15 is opposite to the lower positioning groove 11, the front positioning protrusion 12 is opposite to the front positioning groove 7, and the rear positioning protrusion is opposite to the front positioning groove 7. 13 is opposite to the rear positioning groove 8, and then the upper positioning protrusion 14 can be embedded in the upper positioning groove 10, the lower positioning protrusion 15 can be embedded in the lower positioning groove 11, the front positioning protrusion 12 can be embedded in the front positioning groove 7, and the rear positioning protrusion 13 can be embedded in the rear positioning groove 8, thereby forming four upper and lower front and back positioning. The four positioning can effectively ensure the accuracy of the position of the clamping module 4 after it is fixed to the fixing seat 3, and there will be no position offset. When the clamping module 4 is positioned, the clamping module 4 can be fixed to the fixing seat by screws to complete the installation of the new clamping module 4.

[0037] From the above, it can be seen that the utility model can effectively form four positionings through the cooperation between the upper positioning protrusion 14 and the upper positioning groove 10, the cooperation between the lower positioning protrusion 15 and the lower positioning groove 11, the cooperation between the front positioning protrusion 12 and the front positioning groove 7, and the cooperation between the rear positioning protrusion 13 and the rear positioning groove 8, which can effectively realize the rapid positioning of the clamping module 4. At this time, it is only necessary to fix the clamping module 4 on the fixing seat 3 with screws. No special positioning device is required in the entire positioning process, which reduces a lot of trouble and effectively ensures positioning efficiency, thereby effectively reducing the time for replacing the new clamping module 4 and improving replacement efficiency.

[0038] The front positioning groove 7 and the front positioning protrusion 12 are both arc-shaped and have the same curvature, the rear positioning groove 8 and the rear positioning protrusion 13 are both arc-shaped and have the same curvature, the upper positioning groove 10 and the upper positioning protrusion 14 are both arc-shaped and have the same curvature, and the lower positioning groove 11 and the lower positioning protrusion 15 are both arc-shaped and have the same curvature. In the case of the arc shape, it is convenient for the front positioning protrusion 12 to be quickly embedded in the front positioning groove 7, for the rear positioning protrusion 13 to be quickly embedded in the rear positioning groove 8, and for the upper positioning protrusion 14 to be quickly embedded The upper positioning groove 10 allows the lower positioning protrusion 15 to be quickly embedded in the lower positioning groove 11, further ensuring the positioning efficiency. At the same time, it can ensure that the outer wall of the front positioning protrusion 12 and the inner wall of the front positioning groove 7, the outer wall of the rear positioning protrusion 13 and the inner wall of the rear positioning groove 8, the outer wall of the upper positioning protrusion 14 and the inner wall of the upper positioning groove 10, and the outer wall of the lower positioning protrusion 15 and the inner wall of the lower positioning groove 11 can fit tightly, ensuring the accuracy and stability of the clamping module 4 after positioning.

[0039] A hidden hole 16 that is connected to the through hole 6 is provided on the side wall of the fixing base 3 away from the clamping module 4. The diameter of the hidden hole 16 is larger than the diameter of the through hole 6. When the screw is screwed into the screw hole 5 of the clamping module 4, the head of the screw can be tightly pressed against the bottom of the hidden hole 16. The head of the screw is hidden by the hidden hole 16, which can prevent the screw from being accidentally touched and rotated.

[0040] One of the screw holes 5 is a central screw hole, which is located at the intersection of the upper positioning protrusion 14, the lower positioning protrusion 15, the front positioning protrusion 12 and the rear positioning protrusion 13. The central screw hole passes through the clamping module 4 horizontally. The intersection of the upper positioning protrusion 14 and the front positioning protrusion 12, the intersection of the upper positioning protrusion 14 and the rear positioning protrusion 13, the intersection of the lower positioning protrusion 15 and the front positioning protrusion 12, and the intersection of the lower positioning protrusion 15 and the rear positioning protrusion 13 are all provided with a chip groove 17. The chip groove 17 is connected to the central screw hole. The existence of the chip groove 17 facilitates the discharge of debris generated by the clamping module 4 when processing the upper positioning protrusion 14, the lower positioning protrusion 15, the front positioning protrusion 12 and the rear positioning protrusion 13. When the debris falls into the chip groove 17, it can also be discharged through the central screw hole.

[0041] The upper surfaces of the front and rear limit plates 207 are connected by a protective plate 210, and the lower surface of the protective plate 210 is in contact with the upper surface of the movable seat 201. The width of the protective plate 210 is greater than the distance between the movable seats 201 on the left and right sides. The existence of the protective plate 210 can effectively prevent the debris generated during the processing of the workpiece from falling into the gap between the movable seats 201 on the left and right sides, thereby preventing the debris from accumulating on the upper surface of the seat plate 202 and affecting the movement of the movable seat 201.

[0042] The outer walls at both ends of the swing arm 204 can be configured to be arc-shaped, which facilitates the swing arm 204 to swing smoothly.

[0043] The movable base 201 and the fixed base 3 can be fixed together by a number of evenly distributed screws. This fixing method can not only ensure the stability between the two, but also facilitate the disassembly and assembly of the fixed base 3.

Claims

1. A waterwheel-type machine tool capable of quickly replacing a fixture, comprising a fixture body and a clamping device provided at the upper end of the fixture body, characterized in that: The clamping device includes movable seats located on the left and right sides above the clamp body; a fixed seat matching it is provided on the upper surface of the movable seat; the side walls of the fixed seats on the left and right sides facing each other are both provided with clamping modules; the clamping modules are positioned on the fixed seat through a positioning structure; the side wall of the clamping module that fits the fixed seat is provided with a plurality of evenly distributed screw holes; the fixed seat is provided with a plurality of through holes coaxial with the screw holes; a driving mechanism matching the movable seat is provided in the clamp body, and the driving mechanism can control the left and right movement of the movable seat.

2. The waterwheel-type machine tool capable of quickly replacing fixtures according to claim 1, characterized in that: The positioning structure includes a front positioning groove, a rear positioning groove, an upper positioning groove, and a lower positioning groove provided on the side wall on which the fixing seat and the clamping module are in contact; the front positioning groove is provided on the front side of the fixing seat, the rear positioning groove is provided on the rear side of the fixing seat, the upper positioning groove is provided on the upper side of the fixing seat, and the lower positioning groove is provided on the lower side of the fixing seat; a front positioning protrusion matching the front positioning groove, a rear positioning protrusion matching the rear positioning groove, an upper positioning protrusion matching the upper positioning groove, and a lower positioning protrusion matching the lower positioning groove are provided on the side wall on which the clamping module and the fixing seat are in contact.

3. The waterwheel-type machine tool capable of quickly replacing fixtures according to claim 2, characterized in that: The front positioning groove and the front positioning protrusion are both arc-shaped and have the same curvature; the rear positioning groove and the rear positioning protrusion are both arc-shaped and have the same curvature; the upper positioning groove and the upper positioning protrusion are both arc-shaped and have the same curvature; the lower positioning groove and the lower positioning protrusion are both arc-shaped and have the same curvature.

4. The waterwheel-type machine tool capable of quickly replacing fixtures according to claim 3, characterized in that: A hidden hole that is in communication with the through hole is provided on a side wall of the fixing seat away from the clamping module, and the diameter of the hidden hole is larger than the diameter of the through hole.

5. The waterwheel-type machine tool capable of quickly replacing fixtures according to claim 4, characterized in that: One of the screw holes is the center screw hole, which is located at the intersection of the upper positioning protrusion, the lower positioning protrusion, the front positioning protrusion and the rear positioning protrusion, and the center screw hole passes through the clamping module horizontally; the intersection of the upper positioning protrusion and the front positioning protrusion, the intersection of the upper positioning protrusion and the rear positioning protrusion, the intersection of the lower positioning protrusion and the front positioning protrusion, and the intersection of the lower positioning protrusion and the rear positioning protrusion are all provided with a chip groove, and the chip groove is connected to the center screw hole.

6. The waterwheel-type machine tool capable of quickly replacing fixtures according to claim 1, characterized in that: The driving mechanism includes a piston cavity provided in the clamp body; a piston matching it is provided in the piston cavity; a movable hole communicating with the piston cavity is provided at the center of the upper surface of the clamp body; a piston rod is provided at the center of the upper surface of the piston; the upper end of the piston rod extends upward out of the movable hole and is provided with a traction piece matching the clamping device; a loosening oil circuit communicating with the lower end of the piston cavity and a clamping oil circuit communicating with the upper end of the piston cavity are provided on the clamp body.

7. The waterwheel-type machine tool capable of quickly replacing fixtures according to claim 6, characterized in that: The clamping device also includes a seat plate arranged at the upper end of the clamp body; a driving port corresponding to the position of the traction member is provided in the middle of the seat plate; symmetrical swing arms are hinged on the left and right sides of the driving port; the lower surface of the movable seat is in contact with the upper surface of the seat plate; the front and rear sides of the movable seat are provided with symmetrical guide parts; the front and rear sides of the upper surface of the seat plate are provided with symmetrical baffles, the inner wall of the baffles is in contact with the outer wall of the guide part; the upper surface of the baffle is provided with a limiting plate in contact with the upper surface of the guide part; the traction member is in the shape of an I-beam, and the middle part of the traction member has an annular groove; the lower surface of the movable seat is provided with a pressure groove corresponding to the position of the swing arm; the swing arm is in the shape of a "√", one end of the swing arm is stuck in the pressure groove, and the other end of the swing arm is stuck in the groove.

8. The waterwheel-type machine tool capable of quickly replacing fixtures according to claim 7, characterized in that: The upper surfaces of the front and rear limit plates are connected by a protective plate, and the lower surface of the protective plate is in contact with the upper surface of the movable seat; the width of the protective plate is greater than the distance between the movable seats on the left and right sides.

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