Horizontal type exchange workbench convenient for workpiece fixing and used for machining center

Abstract

The invention discloses a machining center horizontal type exchange workbench facilitating workpiece fixing, and belongs to the technical field of machining. The device comprises two supporting tables, a servo driving system is fixedly connected between the two supporting tables, the output end of the servo driving system is fixedly connected with a moving plate, the moving plate is clamped with a plurality of clamping blocks, the clamping blocks are fixedly connected with conical rods, the supporting tables are provided with a supporting plate, the supporting plate is fixedly connected with a plurality of supporting cylinders, and the supporting cylinders are fixedly connected with the supporting plates. The supporting plate is fixedly connected with a plurality of clamping plates. In the exchange working process, under the action of a reinforcing cylinder and a rotating rod, supporting operation on objects on the upper side of the supporting plate can be formed, then the supporting effect on the objects of different shapes and sizes can be achieved, the possibility that the objects fall off from the supporting plate is reduced, and then exchange operation on the objects can be better completed.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing, in particular to a horizontal exchange workbench for a machining center which is convenient for fixing a workpiece. Background Art

[0002] A machining center is a multifunctional CNC machine tool equipped with a tool magazine and automatic tool changer. It can complete multiple processes such as milling, drilling, and tapping in a single clamping operation. It is characterized by high precision and high efficiency. To further improve the efficiency of the machining center, reduce downtime, and enhance production flexibility, a pallet exchange table is added to the machining center. Among them, the horizontal pallet exchange table is the most widely used. The overall structure of the horizontal exchange workbench is simple, and it is mainly composed of a bracket, a servo drive system, a support table, a support plate, etc. However, in the actual processing process, after the object is placed on the support plate, there is no reinforcement device for the object, resulting in that during the exchange process, not only the exchange speed needs to be adjusted, but also manual supervision is required, which is time-consuming and labor-intensive, very troublesome, and seriously delays the normal exchange rate. In addition, during the exchange process, the long exchange work requires multiple inspections to detect the connection stability between the support plate and the support table, further reducing the overall exchange efficiency. Therefore, a horizontal exchange workbench for a machining center is provided that is convenient for fixing workpieces. Summary of the Invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a horizontal exchange worktable for a machining center that is convenient for fixing workpieces.

[0004] The present invention adopts the following technical solutions: A horizontal exchange workbench for a machining center that is convenient for fixing workpieces includes two support tables, a servo drive system is fixedly connected between the two support tables, a movable plate is fixedly connected to the output end of the servo drive system, the movable plate is clamped with multiple clamping blocks, the clamping blocks are fixedly connected to a conical rod, the support table is installed with a support plate, the support plate is fixedly connected to multiple support cylinders, the support plate is fixedly connected to multiple clamping plates, the clamping plates are provided with multiple clamping slots, a reinforcement device is installed on the upper side of the support plate, the reinforcement device includes multiple through holes opened on the upper side of the support plate, each of the through holes is slidably passed through and connected to a reinforcement cylinder, the reinforcement cylinders are jointly fixedly connected to a first connecting plate, a first spring is fixedly connected between the first connecting plate and the support plate, and the outer side of the servo drive system is fixedly connected to a fixed plate.

[0005] Preferably, a rotating assembly is installed in the reinforcement cylinder, and the rotating assembly includes a rotating rod that slides through the reinforcement cylinder, and the rotating rods are jointly fixedly connected to a second connecting plate, and a second spring is fixedly connected between the second connecting plate and the first connecting plate, and a first pulley assembly is transmission-connected between the rotating rods at the corners, one of the rotating rods is fixedly connected to a circular plate, and the circular plate is circumferentially fixedly connected to a plurality of separation plates, the fixed plate is rotatably connected to a telescopic sleeve, and the telescopic sleeve is fixedly connected to a first gear, and the upper side of the servo drive system is fixedly connected to a gear ring, the first gear and the gear ring are meshed, and the telescopic sleeve is also fixedly connected to a second gear, the fixed plate is slidably connected to a second rack, the second rack and the second gear are meshed, and the second rack is evenly fixedly connected to a plurality of limit rods.

[0006] Preferably, a third gear is fixedly connected to the outer side of the reinforcement tube at the corner, the first connecting plate is slidably connected to a plurality of third racks, the third gear and the third rack are meshed, the third rack is slidably connected to the third connecting plate, the third connecting plate is slidably connected to a connecting rod, the connecting rod is fixedly connected to a circular arc plate, and a third spring is fixedly connected between the circular arc plate and the third connecting plate.

[0007] Preferably, the second rack is fixedly connected to a right-angle plate, the right-angle plate is fixedly connected to a plurality of arc blocks, and the arc blocks and the limiting rods are staggered.

[0008] Preferably, the second connecting plate is fixedly connected to a right-angle rod, the right-angle rod is fixedly connected to a limiting block, and the third connecting plate is fixedly connected to a serrated plate.

[0009] Preferably, the lengths of the rotating rods in the same row and column are different, and the lengths of the rotating rods on both sides are greater than the length of the middle rotating rod.

[0010] Preferably, the servo drive system includes a motor housing, a hydraulic cylinder is fixedly connected to the motor housing, an output end of the hydraulic cylinder is fixedly connected to the motor, and the output end of the motor is fixedly connected to the movable plate.

[0011] The beneficial effects of the present invention are: 1. First, during the exchange process, under the action of the reinforcement cylinder and the rotating rod, the objects on the upper side of the support plate can be supported, thereby achieving the support effect for objects of different shapes and sizes, reducing the possibility of objects falling from the support plate, and thus better completing the exchange operation of objects; 2. In addition, since the lengths of the rotating rods in the same row and column are different, and the lengths of the rotating rods on both sides are greater than the length of the middle rotating rod, when the objects and the rotating rods collide, the objects on the upper side of the support plate will be further positioned in the middle of the support plate, further reducing the possibility of objects falling off the support plate. 3. Then, during the exchange process, if the object is located at the edge of the support plate, the rotating rod will drive the reinforcement cylinder to rotate. The reinforcement cylinder and the object on the outside of the support plate will abut against each other, causing the object to rotate. Only when the force exerted by the object on the rotating rod at the corner is small, that is, when the object is at the center of the support plate, will the rotating rod stop rotating, thereby allowing the object on the upper side of the support plate to move accordingly and move to the center of the support plate. 4. Then, during the exchange process, the arc plate and the support tube will abut against each other, which will form an extrusion effect on the support tube. If there is looseness between the support tube and the support plate, the arc plate will cause the support tube to move relative to the support plate. After the exchange is completed, the support tube on the lower side of the support plate will not abut against the support platform again, that is, the support plate will not return to its original position relative to the support platform. The staff can replace it in time to improve the safety of the overall operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic structural diagram of a horizontal exchange workbench for a machining center that facilitates workpiece fixation, as proposed by the present invention; Figure 2 This is a structural schematic diagram from another angle of a horizontal exchange workbench for a machining center that facilitates workpiece fixation, as proposed by the present invention; Figure 3 for Figure 2 A magnified view of the structure at point A; Figure 4 This is a schematic structural diagram of a support plate in a horizontal exchange workbench for a machining center that facilitates workpiece fixation, as proposed by the present invention; Figure 5 This is a structural schematic diagram of another angle of a support plate in a horizontal exchange workbench for a machining center that facilitates workpiece fixation, as proposed by the present invention; Figure 6 This is a structural schematic diagram of the first gear and the second gear in a horizontal exchange workbench for a machining center that facilitates workpiece fixation, as proposed by the present invention; Figure 7 for Figure 6 A magnified view of the structure at B in the middle; Figure 8 This is a structural diagram of a support plate, a first connecting plate, and a second connecting plate in a horizontal exchange workbench for a machining center that facilitates workpiece fixation, as proposed by the present invention; Figure 9This is a structural schematic diagram of a first connecting plate and a second connecting plate in a horizontal exchange workbench for a machining center that facilitates workpiece fixation, as proposed by the present invention; Figure 10 This is a schematic structural diagram of the third gear and the third rack in a horizontal exchange workbench for a machining center that facilitates workpiece fixation, as proposed by the present invention; Figure 11 for Figure 10 Enlarged view of the structure at point C in the middle.

[0013] In the figure: 1 support platform, 2 support plate, 3 servo drive system, 4 moving plate, 5 card plate, 6 card slot, 7 tapered rod, 8 through hole, 9 fixed plate, 10 second gear, 11 second rack, 12 first gear, 13 right-angle plate, 14 gear ring, 15 telescopic sleeve, 16 support cylinder, 17 limit rod, 18 arc block, 19 first connecting plate, 20 second connecting plate, 21 first spring, 22 pulley assembly, 23 reinforcement cylinder, 24 rotating rod, 25 second spring, 26 circular plate, 27 separation plate, 28 third gear, 29 third rack, 30 third connecting plate, 31 connecting rod, 32 third spring, 33 circular arc plate, 34 serrated plate, 35 right-angle rod, 36 limit block. DETAILED DESCRIPTION

[0014] See Figures 1-11 , a horizontal exchange workbench for a machining center that is convenient for fixing a workpiece, comprising two support platforms 1, a servo drive system 3 fixedly connected between the two support platforms 1, the servo drive system 3 comprising a motor housing, a hydraulic cylinder fixedly connected inside the motor housing, an output end of the hydraulic cylinder fixedly connected to a motor, an output end of the motor and a movable plate 4 fixedly connected, an output end of the servo drive system 3 fixedly connected to the movable plate 4, a plurality of card blocks are clamped on the upper side of the movable plate 4, a conical rod 7 is fixedly connected to the upper side of each card block, a support plate 2 is installed on the upper side of the two support platforms 1, a plurality of support cylinders 16 are fixedly connected to the lower side of the support plate 2, a plurality of card plates 5 are fixedly connected to the lower side of the support plate 2, and a plurality of card slots 6 are opened on the lower side of each card plate 5; When the support plate 2 is moved to the appropriate working position, the motor is started, and the motor drives the movable plate 4 to rotate. The movable plate 4 drives the support plate 2 to rotate through the block and the conical rod 7 until the support plates 2 on both sides exchange positions with each other, that is, the support plates 2 rotate 180°, and finally completes the corresponding exchange operation. A reinforcement device is installed on the upper side of the support plate 2. The reinforcement device includes a plurality of through holes 8 opened on the upper side of the support plate 2. A reinforcement tube 23 is slidably connected to each through hole 8. A first connecting plate 19 is fixedly connected to the lower side of the plurality of reinforcement tubes 23. A first spring 21 is fixedly connected between the first connecting plate 19 and the support plate 2. A fixing plate 9 is fixedly connected to the outer side of the servo drive system 3. During the movement of the support plate 2, the movable plate 4 moves upward first. During this process, the fixed plate 9 on the lower side of the movable plate 4 moves upward at the same time. The fixed plate 9 first contacts the first connecting plate 19 and then drives the first connecting plate 19 to move upward. The first connecting plate 19 drives the reinforcement tube 23 to move upward. The reinforcement tube 23 contacts the objects on the upper side of the support platform 1, forming a supporting effect for the objects, and then forming a supporting effect for objects of different shapes and sizes, reducing the possibility of objects falling from the support plate 2, and thus better completing the exchange operation of objects.

[0015] A rotating assembly is installed in the reinforcement cylinder 23, and the rotating assembly includes a rotating rod 24 that slides through the reinforcement cylinder 23, and the lower sides of the multiple rotating rods 24 are commonly fixedly connected to the second connecting plate 20, and the second connecting plate 20 and the first connecting plate 19 are fixedly connected to the second spring 25. The first pulley assembly 22 is transmission-connected between the rotating rods 24 at the corners, and the outer side of one of the rotating rods 24 is fixedly connected to a circular plate 26, and the outer side of the circular plate 26 is circumferentially fixedly connected to multiple separation plates 27. The lower side of the fixed plate 9 is rotatably connected to the telescopic sleeve 15, and the outer side of the telescopic sleeve 15 is fixedly connected to the first gear 12. The upper side of the servo drive system 3 is fixedly connected to the gear ring 14, and the first gear 12 and the gear ring 14 are meshed. The outer side of the telescopic sleeve 15 is also fixedly connected to the second gear 10, and the lower side of the fixed plate 9 is slidably connected to the second rack 11, and the second rack 11 is meshed with the second gear 10. The side walls of the second rack 11 are evenly fixedly connected to multiple limit rods; The lengths of the rotating rods 24 in the same row and column are different, and the lengths of the rotating rods 24 on both sides are greater than the length of the middle rotating rod 24. First, as Figure 9 As shown, the length of each rotating rod 24 in the same column and row is different, and the rotating rod 24 closer to the middle position of the support plate 2 is shorter. When the reinforcement cylinder 23 and the object on the upper side of the support plate 2 are against each other, the rotating rod 24 has already been against the object. Under the action of the rotating rod 24, the object can be further positioned in the middle position of the support plate 2, reducing the possibility of the object falling from the support plate 2. Then, the telescopic sleeve 15 is composed of two cylinders that are sleeved with each other. The first gear 12 is fixedly connected to the lower cylinder, and the second gear 10 is fixedly connected to the upper cylinder. During the exchange process, the first gear 12 is always in a meshing connection state with the gear ring 14, and And in the initial state, the reinforcement cylinder 23 and the rotating rod 24 are both located in the through hole 8. When the exchange operation begins, the fixed plate 9 rotates with the output shaft of the motor as the center, and in this process, the gear ring 14 is in a fixed state, which will cause the first gear 12 to rotate. The first gear 12 drives the second gear 10 to rotate through the telescopic sleeve 15, and the second gear 10 drives the second rack 11 to move. The second rack 11 drives the limiting rod 17, the right-angle plate 13, and the arc block 18 to move as a whole. In the process of the reinforcement cylinder 23 moving upward relative to the support plate 2, the rotating rod 24 outside the reinforcement cylinder 23 first hits the object, thereby causing the rotating rod 2 4 moves downward relative to the reinforcement cylinder 23. During this process, because the lengths of the rotating rods 24 in the same row and column are different, and the lengths of the rotating rods 24 on both sides are greater than the length of the middle rotating rod 24, the closer the object on the upper side of the support plate 2 is to the edge of the support plate 2, the longer the rotating rods 24 will move downward relative to the reinforcement cylinder 23, that is, the more the second connecting plate 20 will move downward relative to the first connecting plate 19. If the second connecting plate 20 moves downward for a longer distance, the separating plate 27 on the outer side of the circular plate 26 and the limiting rod 17 on the outer side of the second rack 11 will be staggered. Since the limiting rod 17 always follows the outer side of the circular plate 26 during this process, the limiting rod 17 always follows the outer side of the circular plate 26. The second rack 11 moves, so when the limiting rods 17 outside the separation plate 27 and the second rack 11 are staggered, the separation plate 27 and the circular plate 26 will rotate. Under the action of the pulley assembly 22, the rotating rods 24 at all corners are driven to rotate, and the rotating rods 24 drive the reinforcement cylinder 23 to rotate. The reinforcement cylinder 23 and the objects on the outside of the support plate 2 are offset, which will cause the objects to rotate. Only when the force exerted by the objects on the rotating rods 24 at the corners is small, that is, the objects are located in the center of the support plate 2, the rotating rods 24 will stop rotating, and then the objects on the upper side of the support plate 2 can be moved accordingly and moved to the center of the support plate 2.

[0016] A third gear 28 is fixedly connected to the outer side of the reinforcement cylinder 23 at the corner, and a plurality of third racks 29 are slidably connected to the outer side of the first connecting plate 19. The third gear 28 and the third racks 29 are meshed, and the end of the third rack 29 is slidably connected to the third connecting plate 30. A connecting rod 31 is slidably connected to the outer side of the third connecting plate 30. The outer side of the connecting rod 31 is fixedly connected to a circular arc plate 33. A third spring 32 is fixedly connected between the circular arc plate 33 and the third connecting plate 30. During the rotation of the reinforcement cylinder 23, the reinforcement cylinder 23 drives the third connecting plate 30 to move through the third gear 28 and the third rack 29, and the third connecting plate 30 drives the arc plate 33 to move through the connecting rod 31. The arc plate 33 and the support cylinder 16 will form an extrusion effect on the support cylinder 16. If there is looseness between the support cylinder 16 and the support plate 2, the arc plate 33 will cause the support cylinder 16 to move relative to the support plate 2. After the exchange is completed, the support cylinder 16 on the lower side of the support plate 2 will not be against the support platform 1 again, that is, the support plate 2 will not return to its original position relative to the support platform 1. The staff can replace it in time to improve the safety of the overall operation of the device.

[0017] The lower side of the second rack 11 is fixedly connected to a right-angle plate 13, and the upper side of the right-angle plate 13 is fixedly connected to a plurality of arc blocks 18. The arc blocks 18 and the limit rods are staggered. When the separation plate 27 and the limit rods are in a staggered state, under the action of the arc blocks 18, the separation plate 27, the circular plate 26, and the second connecting plate 20 will vibrate, which can improve the efficiency of moving objects on the upper side of the support plate 2.

[0018] The side wall of the second connecting plate 20 is fixedly connected to a right-angle rod 35 , the side wall of the right-angle rod 35 is fixedly connected to a limit block 36 , and the side wall of the third connecting plate 30 is fixedly connected to a serrated plate 34 ; First, a buffer spring is fixedly connected to the upper side of the third connecting plate 30, and the buffer spring and the support plate 2 are in abutment with each other. During the vibration of the second connecting plate 20, the second connecting plate 20 drives the support rod and the limit block 36 to move. The limit block 36 and the serrated plate 34 are in abutment with each other, causing the serrated plate 34 to move. The serrated plate 34 drives the arc plate 33 to move through the connecting rod 31. The arc plate 33 and the support tube 16 are in abutment with each other, which can better form an extrusion effect on the support tube 16.

[0019] In the present invention, when the exchange work needs to be carried out, the hydraulic cylinder is first started, and the hydraulic cylinder drives the motor, the movable plate 4, the clamping block and the conical rod 7 to move upward, and the conical rod 7 enters the clamping groove 6 on the lower side of the clamping plate 5, thereby driving the clamping plate 5 and the support plate 2 to move upward, and the support plate 2 drives the objects placed on the upper side to move until the support plate 2 moves to the appropriate working position, and then the motor is started, and the motor drives the movable plate 4 to rotate. The movable plate 4 drives the support plate 2 to rotate through the clamping block and the conical rod 7 until the support plates 2 on both sides exchange positions with each other, that is, the support plate 2 rotates 180°, and finally completes the corresponding exchange operation; During the movement of the support plate 2, the fixed plate 9 on the lower side of the movable plate 4 moves upward at the same time. The fixed plate 9 first contacts the first connecting plate 19 and then drives the first connecting plate 19 to move upward. The first connecting plate 19 drives the reinforcement cylinder 23 to move upward. The reinforcement cylinder 23 contacts the object on the upper side of the support platform 1, thereby forming a supporting effect for the object. When the exchange operation begins, the fixed plate 9 rotates with the output shaft of the motor as the center, the first gear 12 rotates, the first gear 12 drives the second gear 10 to rotate through the telescopic sleeve 15, the second gear 10 drives the second rack 11 to move, and the second rack 11 drives the limiting rod 17, the right-angle plate 13, and the arc block 18 to move as a whole. In the process of the reinforcement cylinder 23 moving upward relative to the support plate 2, the rotating rod 24 outside the reinforcement cylinder 23 first contacts the object, thereby causing the rotating rod 24 to move downward relative to the reinforcement cylinder 23. In this process, the closer the object on the upper side of the support plate 2 is located at the edge of the support plate 2, the longer the rotating rod 24 will move downward relative to the reinforcement cylinder 23, that is, the closer the second connecting plate 20 will be relative When the first connecting plate 19 moves downward, and if the second connecting plate 20 moves downward a long distance, the separation plate 27 on the outer side of the circular plate 26 and the limiting rod 17 on the outer side of the second rack 11 will be staggered, causing the separation plate 27 and the circular plate 26 to rotate. Under the action of the pulley assembly 22, the rotating rods 24 at all corners are driven to rotate, and the rotating rods 24 drive the reinforcement cylinder 23 to rotate. The reinforcement cylinder 23 and the objects on the outer side of the support plate 2 are resisted, which will cause the objects to rotate. Only when the force exerted by the objects on the rotating rods 24 at the corners is small, that is, the objects are located at the center of the support plate 2, the rotating rods 24 will stop rotating, thereby allowing the objects on the upper side of the support plate 2 to move accordingly and move to the center of the support plate 2; During the rotation of the reinforcement cylinder 23, the reinforcement cylinder 23 drives the third connecting plate 30 and the arc plate 33 to move through the third gear 28 and the third rack 29. The arc plate 33 and the support cylinder 16 abut against each other to form a squeezing effect on the support cylinder 16. If there is looseness between the support cylinder 16 and the support plate 2, the arc plate 33 will cause the support cylinder 16 to move relative to the support plate 2. When the separation plate 27 and the limit rod are in an interlaced state, under the action of the arc block 18, the separation plate 27, the circular plate 26, and the second connecting plate 20 will vibrate, which can improve the efficiency of moving objects on the upper side of the support plate 2. During the vibration of the second connecting plate 20, the second connecting plate 20 drives the support rod and the limit block 36 to move, and the limit block 36 and the serrated plate 34 are abutted against each other, causing the serrated plate 34 to move. The serrated plate 34 drives the arc plate 33 to move through the connecting rod 31, and the arc plate 33 and the support tube 16 are abutted, which can better form an extrusion effect on the support tube 16.

Claims

1. A horizontal exchange workbench for a machining center that facilitates workpiece fixation, comprising two support tables (1), characterized in that: A servo drive system (3) is fixedly connected between the two support platforms (1), and a movable plate (4) is fixedly connected to the output end of the servo drive system (3), and a plurality of clamping blocks are clamped to the movable plate (4), and the clamping blocks are fixedly connected to a conical rod (7). The support platform (1) is equipped with a support plate (2), and the support plate (2) is fixedly connected to a plurality of support cylinders (16). The support plate (2) is fixedly connected to a plurality of clamping plates (5), and the clamping plates (5) are provided with a plurality of clamping slots (6). The support plate (2) is equipped with a reinforcement device, and the reinforcement device includes a plurality of through holes (8) opened on the upper side of the support plate (2), and each of the through holes (8) is slidably connected to a reinforcement cylinder (23), and the reinforcement cylinders (23) are fixedly connected to a first connecting plate (19) in common. A first spring (21) is fixedly connected between the first connecting plate (19) and the support plate (2). The outer side of the servo drive system (3) is fixedly connected to a fixed plate (9).

2. A horizontal exchange worktable for a machining center that is convenient for fixing workpieces according to claim 1, characterized in that: A rotating assembly is installed in the reinforcement cylinder (23), and the rotating assembly includes a rotating rod (24) that slides through the reinforcement cylinder (23), the rotating rod (24) is fixedly connected to a second connecting plate (20), a second spring (25) is fixedly connected between the second connecting plate (20) and the first connecting plate (19), and a first pulley assembly (22) is transmission-connected between the rotating rods (24) at the corners, one of the rotating rods (24) is fixedly connected to a circular plate (26), and the circular plate (26) is fixedly connected to a plurality of separation plates (27) in a circumferential direction. The fixed plate (9) is rotatably connected to a telescopic sleeve (15), the telescopic sleeve (15) is fixedly connected to a first gear (12), the upper side of the servo drive system (3) is fixedly connected to a gear ring (14), the first gear (12) and the gear ring (14) are meshed, the telescopic sleeve (15) is also fixedly connected to a second gear (10), the fixed plate (9) is slidably connected to a second rack (11), the second rack (11) and the second gear (10) are meshed, and the second rack (11) is evenly fixedly connected to a plurality of limit rods (17).

3. The horizontal exchange workbench for a machining center that is convenient for fixing a workpiece according to claim 2, characterized in that: The reinforcing tube (23) at the corner is fixedly connected to a third gear (28), the first connecting plate (19) is slidably connected to a plurality of third racks (29), the third gear (28) and the third racks (29) are meshed, the third racks (29) are slidably connected to a third connecting plate (30), the third connecting plate (30) is slidably connected to a connecting rod (31), the connecting rod (31) is fixedly connected to an arc plate (33), and a third spring (32) is fixedly connected between the arc plate (33) and the third connecting plate (30).

4. The horizontal exchange worktable for a machining center that is convenient for fixing a workpiece according to claim 3, characterized in that: The second rack (11) is fixedly connected to a right-angle plate (13), and the right-angle plate (13) is fixedly connected to a plurality of arc-shaped blocks (18), and the arc-shaped blocks (18) and the limiting rods (17) are arranged in a staggered manner.

5. The horizontal exchange workbench for a machining center that is convenient for fixing a workpiece according to claim 4, characterized in that: The second connecting plate (20) is fixedly connected to a right-angle rod (35), the right-angle rod (35) is fixedly connected to a limit block (36), and the third connecting plate (30) is fixedly connected to a sawtooth plate (34).

6. The horizontal exchange workbench for a machining center that is convenient for fixing a workpiece according to claim 5, characterized in that: The lengths of the rotating rods (24) in the same row and column are different, and the lengths of the rotating rods (24) on both sides are greater than the length of the middle rotating rod (24).

7. The horizontal exchange worktable for a machining center that is convenient for fixing a workpiece according to claim 1, characterized in that: The servo drive system (3) comprises a motor housing, a hydraulic cylinder is fixedly connected to the motor housing, an output end of the hydraulic cylinder is fixedly connected to the motor, and the output end of the motor is fixedly connected to the moving plate (4).

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