Positioning and clamping tool for machining of a metal product holder

Abstract

This invention discloses a positioning and clamping fixture for machining machine bases of metal products, specifically relating to the field of machine base machining technology. The invention adjusts the clamping position using two fitting clamping plates and a sliding block that can move within a limiting groove. This allows the fitting clamping unit to change the clamping distance according to the position and size of the side groove of the machine base, reducing the problem that fixed fixtures can only adapt to a single specification of machine base. A moving wedge simultaneously pushes two pushing clamping blocks and side blocks, enabling continuous upper and lower clamping actions and lateral clamping actions. This reduces the structural complexity, numerous operation steps, and asynchronous clamping actions caused by setting multiple clamping drive components, thus improving clamping efficiency. The cleaning unit's three-slide plate moves along a linear guide rail, pushing debris from the upper surface of the rotating base into the discharge groove, reducing metal debris residue on the placement and positioning surfaces of the machine base, and preventing tilting or positioning deviations caused by debris padding when placing the next machine base.

Description

Technical Field

[0001] This invention relates to the field of machine base processing technology, specifically to a positioning and clamping fixture for processing machine bases of metal products. Background Technology

[0002] Metal product bases typically serve as supports and mounting foundations for mechanical equipment, and generally require the machining of structures such as mounting holes, positioning holes, connecting grooves, reference surfaces, and assembly surfaces. To ensure the assembly accuracy between the base and the motor, transmission mechanism, or other functional components, positioning and clamping fixtures are used to fix the base during machining processes such as drilling, milling, boring, or grinding, so that the base maintains a stable position and posture during machining.

[0003] The clamping positions and ranges of existing positioning and clamping fixtures for machining bases of metal products are usually relatively fixed, making it difficult to adapt them to the position, length, and internal dimensions of the side grooves of different specifications of bases, resulting in a limited range of applicability. At the same time, existing clamping structures usually require multiple driving components to clamp different inner walls of the base grooves, which can easily lead to complex structures, numerous clamping steps, and asynchronous movements of the clamping components, affecting the clamping efficiency and clamping stability of the base.

[0004] Furthermore, during drilling and milling operations on the machine base, metal shavings easily scatter and accumulate on the machine base's placement surface, positioning surface, and material feed chute. Existing tooling typically relies on manual cleaning using brushes or air guns, which not only increases the labor intensity of operators but also makes it difficult for a single-direction cleaning structure to thoroughly clean different sections of the feed chute due to the multiple extension directions and corner areas of the rectangular material feed chute, easily creating dead zones for shavings. Residual shavings remaining on the machine base's placement and positioning surfaces cause the machine base to tilt, positioning reference to shift, or clamping instability, thereby affecting the machining accuracy and continuous machining efficiency of the machine base. Summary of the Invention

[0005] The purpose of this invention is to provide a positioning and clamping fixture for machining metal product bases, so as to solve the problems mentioned in the background art.

[0006] The main technical problem solved by this invention is: The clamping position and clamping range of existing positioning and clamping fixtures for machining bases of metal products are usually relatively fixed, making it difficult to make adaptive adjustments according to the position, length and internal dimensions of the side grooves of different specifications of bases; Residual debris generated from the machining base may remain on the placement and positioning surfaces of the base, causing the base to tilt, the positioning reference to shift, or the clamping to be unstable.

[0007] This invention can be achieved through the following technical solutions: A positioning and clamping fixture for processing metal product bases includes a rotating base. The upper surface of the rotating base and the outer side of the base are provided with a rectangular material dropping groove, and the upper end face edge of the rotating base is equipped with a segmented motion adjustment unit. The upper surface of the rotating base is slidably fitted with a clamping unit that restricts the machine base side groove. The bonding clamping unit includes two bonding clamping plates, each of which is embedded with two limiting slide grooves. Slide blocks are slidably limited inside the two limiting slide grooves, and the two slide blocks slide close to or away from each other at the same time. The slide block is provided with rail grooves above and below its surface. Each rail groove is equipped with a pusher block inside for limiting the movement. A spring is installed inside the rail groove and connected to the corresponding pusher block. A side block is installed on the side of the two pusher blocks near the edge of the clamping plate. The side block slides into the groove inside the slide block. A spring is installed inside the groove. The outer surface of the side block is equipped with a protrusion that contacts the inner wall of the side groove of the machine base. The inner side of the pushing clamp block and the side away from the side block are provided with an inclined part. The outer surface of the slide block and the side away from the side block are equipped with a moving wedge that abuts against the inner surface of the inclined part. The middle surface of the moving wedge block is equipped with a top block that abuts against the surface of the side block. The surface of the slide block is equipped with a pusher that drives the moving wedge.

[0008] A further technical improvement of the present invention is that: the pushing member includes a mounting block installed on the inner side of the slide block, the mounting block having an L-shaped structure, and an electric cylinder is installed at the L-shaped end of the mounting block, the pushing end of the electric cylinder being fixed to the moving wedge block; Each of the limiting slide grooves is provided with a transmission screw inside. The two transmission screws have opposite thread directions and are threadedly connected to the corresponding slide block.

[0009] A further technical improvement of the present invention is that: a common connecting plate is installed between the outer sides of the two fitting clamps, and a clamping cylinder is installed in the middle of the edge of the side of the rotating base, and the pushing end of the clamping cylinder is fixedly connected to the middle surface of the connecting plate; A sliding rod is fixed to the outer surface of the connecting plate, and the sliding rod is slidably set with the fixed plate at the edge of the rotating base.

[0010] A further technical improvement of the present invention is that: a stroke cylinder is installed at each of the four ends of the upper surface of the rotating base, the pushing end of the stroke cylinder is fixed to the bottom surface of the limiting frame, and the length and width of the middle cavity of the limiting frame are both greater than the length and width of the base.

[0011] A further technical improvement of the present invention is that: the adjustment unit includes a limiting frame, and a first limiting member and a second limiting member are slidably embedded in the inner wall of the limiting frame cavity; The first limiting component includes two parallel push plates 1, and the second limiting component includes two parallel push plates 2. The two push plates 1 are pushed closer together by a synchronous cylinder 1, and the two push plates 2 are pushed closer together by a synchronous cylinder 2.

[0012] A further technical improvement of the present invention is that: the bottom surface of the limiting frame is provided with a linear guide rail arranged parallel to the push plate on the outside of the groove cavity, a sliding plate is installed on the slider of the linear guide rail, and a cleaning unit for wiping the upper surface of the rotating base is installed on the bottom surface of the sliding plate. The end face of the material discharge trough is connected to a chip removal port.

[0013] A further technical improvement of the present invention is that the cleaning unit includes a cleaning part three fixedly connected to the slide plate, and both ends of the cleaning part three are provided with a cleaning component one that contacts the bottom of the cavity in the material drop trough and is parallel to the push plate. A cleaning component two that contacts the bottom of another cavity in the material drop trough is provided on one side of the cleaning part three.

[0014] A further technical improvement of the present invention is that: the cleaning component one includes a lifting component one, and the pushing end of the lifting component one is connected to the cleaning part one; The second cleaning component includes a second lifting component. The pushing end of the second lifting component is provided with a support plate. A slide rail arranged parallel to the third cleaning component is mounted on the support plate. The second cleaning component, which contacts the bottom of another cavity in the material drop trough, is mounted on the slider of the slide rail.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The clamping position is adjusted by two fitting clamping plates and a slide block that can move within the limiting groove, so that the fitting clamping unit can change the clamping distance according to the position and size of the side groove of the machine base. This reduces the problem that fixed fixtures can only adapt to a single specification of machine base, and improves the tooling's adaptability to machine bases of different sizes and structures. A moving wedge simultaneously pushes two pushing clamping blocks and side blocks to move, so that the upper and lower clamping actions and the lateral clamping actions can be completed continuously. This reduces the problems of complex structure, many operation steps and asynchronous clamping actions caused by setting multiple clamping drive components, and improves clamping efficiency. 2. The limiting frame adopts a four-point synchronous lifting method. Before clamping the machine base, the limiting frame rises to a height higher than the top surface of the machine base. The two push plates are driven by the synchronous cylinder to move closer to each other, which can push the machine base from the two opposite sides in the first direction, so that the machine base is automatically centered in the first direction, reducing the manual repeated measurement and adjustment of the machine base position. The two push plates are driven by the synchronous cylinder to move closer to each other, which can correct the position of the machine base from the two opposite sides in the second direction. Together with the two push plates, the machine base is centered in both directions, improving the initial placement accuracy of the machine base on the rotating base and reducing the situation where the forces of the two sets of push plates affect each other when they push at the same time, resulting in the machine base being tilted, stuck or inaccurately centered. 3. By setting linear guide rails, a sliding plate, and a third cleaning section on the bottom surface of the limiting frame, the adjustment unit, in addition to its pre-positioning function on the machine base, automatically wipes the upper surface of the rotating base after the machine base is removed, increasing the functional utilization rate of the limiting frame lifting structure. The third cleaning section moves along the linear guide rail with the sliding plate, pushing debris from the upper surface of the rotating base into the discharge chute, reducing metal debris residue on the placement and positioning surfaces of the machine base, and preventing tilting or positioning deviations caused by debris padding when placing the next machine base. Two cleaning sections are respectively located on the third cleaning section. At both ends, when the slide moves in a straight line, it can clean two parallel sections in the discharge chute at the same time, reducing the number of reciprocating motions required to clean the two sections separately and improving chip removal efficiency. The first cleaning unit is raised and lowered by the first lifting component, so that the first cleaning unit only enters the discharge chute when cleaning the corresponding section and rises and exits after cleaning. The second cleaning unit is raised and lowered as a whole by the second lifting component and moves along the slide rail in another direction, which can supplement the cleaning of the discharge chute sections that are difficult to cover in the direction of movement of the first cleaning unit, thus improving the cleaning integrity of the rectangular discharge chute. Attached Figure Description

[0016] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the external structure of the present invention; Figure 2 This is a schematic diagram of the installation structure of the push plate of the present invention; Figure 3 This is a three-dimensional structural diagram of the fitting clamp of the present invention; Figure 4 For the present invention Figure 3 A magnified view of a section at point A in the middle; Figure 5 This is a schematic diagram of the installation structure of the material discharge chute of the present invention; Figure 6 This is a schematic diagram of the three-dimensional installation structure of cleaning part three and cleaning part two of the present invention.

[0018] In the diagram: 1. Rotating base; 2. Stroke cylinder; 3. Limiting frame; 4. Push plate one; 5. Fitting clamping plate; 6. Connecting plate; 7. Clamping cylinder; 8. Push plate two; 9. Limiting slide groove; 10. Slide seat; 11. Rail groove; 12. Spring one; 13. Spring two; 14. Side block; 15. Protrusion; 16. Pushing clamping block; 17. Inclined part; 18. Moving wedge block; 19. Top block; 20. Mounting block; 21. Electric cylinder; 22. Chip removal port; 23. Material drop chute; 24. Slide plate; 25. Cleaning part one; 26. Lifting part one; 27. Cleaning part three; 28. Slide rail; 29. ​​Cleaning part two; 30. Lifting part two. Detailed Implementation

[0019] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided.

[0020] Please see Figures 1-6 As shown, the present invention provides a positioning and clamping fixture for processing metal product bases, including a rotating base 1, a rectangular material drop groove 23 on the upper surface of the rotating base 1 and located on the outside of the base, and a segmented motion adjustment unit is installed on the upper end edge of the rotating base 1. A fitting clamping unit that restricts the machine base side groove is slidably installed on the edge of the upper surface of the rotating base 1; The bonding clamping unit includes two bonding clamping plates 5, each of which has two limiting slide grooves 9 embedded in it. Slide seats 10 are slidably limited inside the two limiting slide grooves 9, and the two slide seats 10 slide close to or away from each other at the same time. The slide block 10 has rail grooves 11 on both the upper and lower surfaces. Each rail groove 11 has a pusher block 16 installed inside it for limiting. A spring 12 connected to the corresponding pusher block 16 is installed inside the rail groove 11. A side block 14 is installed on the side of the two pusher blocks 16 near the edge of the clamping plate 5. The side block 14 slides into the groove inside the slide block 10. A spring 2 13 is installed inside the groove. A protrusion 15 is installed on the outer surface of the side block 14, which contacts the inner wall of the side groove of the machine base. An inclined part 17 is provided on the inner side of the push clamping block 16 and away from the side block 14. A moving wedge 18 is installed on the outer surface of the slide block 10 and away from the side block 14, which abuts against the inner surface of the inclined part 17. A top block 19 is installed on the middle surface of the moving wedge 18, which abuts against the surface of the side block 14. The surface of the slide block 10 is equipped with a pusher that drives the moving wedge block 18.

[0021] Initially, the adjustment unit is in the raised state; In use, the metal product to be processed is first placed on the upper surface of the rotating base 1, so that the base is in the area enclosed by the rectangular material drop trough 23. According to the outer dimensions of the base and the position to be processed, the height of the first descent adjustment unit is adjusted to reach the middle height of the base, thus completing the position correction of the base and keeping the base in the predetermined processing position.

[0022] Subsequently, the two clamping plates 5 on both sides of the drive slide close together, so that they are close to the two sides of the machine base respectively. After the clamping plates 5 move to the side of the machine base, the slides 10 on the clamping plates 5 correspond to the positions of the grooves on the side of the machine base. The two slides 10 slide away synchronously, so that the slides 10 can enter or align with the grooves on the side of the machine base, thereby adapting to the clamping requirements of different specifications of machine bases.

[0023] When the slide block 10 moves to the predetermined position in the side groove of the machine base, the moving wedge block 18 is driven to move along the slide block 10 by the pusher. During the movement of the moving wedge block 18, its two sides contact the inclined parts 17 of the pushing clamp blocks 16 located above and below the slide block 10, respectively. Since the inclined parts 17 and the moving wedge block 18 form a wedge surface fit, when the moving wedge block 18 moves, it pushes the two pushing clamp blocks 16 along the corresponding rail grooves 11 and in a direction away from each other. The two pushing clamp blocks 16 approach and abut against the upper inner wall and the lower inner wall of the side groove of the machine base, respectively. During this process, the spring 12 undergoes elastic deformation.

[0024] As the moving wedge 18 pushes the two pushing clamps 16 outward, the top block 19 gradually contacts the surface of the side block 14 and pushes the side block 14 to move along the groove inside the slide block 10 toward the lateral inner wall of the side groove of the machine base. When the side block 14 moves, it compresses the second spring 13 and drives the protrusion 15 to move outward synchronously, so that the protrusion 15 abuts against the lateral inner wall of the side groove of the machine base.

[0025] Two push-clamping blocks 16 press against the corresponding inner walls of the side groove of the machine base from the top and bottom directions, respectively, while the protrusion 15 presses against the other inner wall of the groove from the side, so that the clamping unit can form multi-directional pressing inside the side groove of the machine base. After the machine base is restricted from the top, bottom and side by the inside of the groove, it is not easy to rise, fall, move sideways or shake relative to the clamping plate 5, thereby completing the stable clamping of the machine base.

[0026] After clamping is completed, the machine base is drilled, milled, bored or surface-machined using processing equipment. The metal chips generated during the processing fall to the rotating base 1 under the action of gravity. The rectangular discharge groove 23 collects the chips falling around the machine base, reducing the accumulation of chips at the bottom of the machine base, the clamping area or the positioning surface of the rotating base 1.

[0027] After machining is completed in one direction of the machine base, the rotating base 1 is rotated, thereby driving the machine base, adjustment unit and clamping unit to rotate to another machining position. During the rotation, the clamping unit always restricts the machine base from inside the side groove of the machine base. Without the need to release the clamp and readjust the position of the machine base, continuous machining of different sides or different directions of the machine base can be completed.

[0028] See Figure 4 As shown, the pusher includes a mounting block 20 mounted on the inner side of the slide block 10. The mounting block 20 has an L-shaped structure, and an electric cylinder 21 is mounted on the L-shaped end of the mounting block 20. The pushing end of the electric cylinder 21 is fixed to the moving wedge block 18. Each limiting slide groove 9 is equipped with a transmission screw inside. The two transmission screws have opposite thread directions and are threadedly connected to the corresponding slide block 10.

[0029] Before clamping, based on the length of the side groove of the machine base and the position to be clamped, the transmission screws in the two limiting slides 9 are rotated synchronously. When the two transmission screws rotate synchronously in a predetermined direction, the two slides 10 can move closer to each other along the corresponding limiting slides 9. When the two transmission screws rotate in opposite directions, the two slides 10 can move away from each other simultaneously. When the two slides 10 move closer to each other, it is suitable for side grooves with shorter lengths. When the two slides 10 move away from each other, the distance between the two clamping points is increased, so that the clamping unit can adapt to side grooves with longer lengths, and the two slides 10 are kept in the adjusted position.

[0030] Subsequently, the pushing end of the electric cylinder 21 extends, and the electric cylinder 21 pushes the moving wedge 18 to move along the slide block 10. During the movement of the moving wedge 18, it pushes against the inclined part 17 on the two pushing clamps 16 respectively. Through the wedge surface cooperation, the linear movement of the moving wedge 18 is converted into the unfolding movement of the two pushing clamps 16, so that the two pushing clamps 16 located above and below the slide block 10 move away from each other along the corresponding rail groove 11 and abut against the upper inner wall and lower inner wall of the side groove of the machine base respectively.

[0031] See Figure 1 As shown, the same connecting plate 6 is installed between the outer sides of the two fitting clamping plates 5. A clamping cylinder 7 is installed in the middle of the side edge of the rotating base 1. The pushing end of the clamping cylinder 7 is fixedly connected to the middle surface of the connecting plate 6. A sliding rod is fixed to the outer surface of the connecting plate 6, and the sliding rod is slidably set with the fixed plate at the edge of the rotating base 1.

[0032] When the connecting plate 6 moves, it can drive the two fitting clamps 5 to move closer to the machine base simultaneously, so that the slides 10 on the two fitting clamps 5 and the corresponding clamping structures move to the vicinity of the side groove of the machine base. The slide rod on the outer surface of the connecting plate 6 slides synchronously along the guide position on the edge fixing plate of the rotating base 1, which restricts the movement direction of the connecting plate 6 and prevents the connecting plate 6 from deflecting, tilting or shaking up and down during the pushing process of the clamping cylinder 7, so that the two fitting clamps 5 can move smoothly in the predetermined direction.

[0033] See Figure 1 and Figure 2 As shown, stroke cylinders 2 are installed at the four ends of the upper surface of the rotating base 1. The pushing end of the stroke cylinder 2 is fixed to the bottom surface of the limiting frame 3. The length and width of the groove in the middle of the limiting frame 3 are both greater than the length and width of the machine base. The adjustment unit includes a limiting frame 3, and a first limiting member and a second limiting member are slidably embedded in the inner wall of the cavity of the limiting frame 3; The first limiting component includes two parallel push plates 4, and the second limiting component includes two parallel push plates 8. The two push plates 4 are pushed closer together by a synchronous cylinder 1, and the two push plates 8 are pushed closer together by a synchronous cylinder 2.

[0034] Before clamping the machine base, the four stroke cylinders 2 work synchronously to drive the limiting frame 3 to rise above the height of the top surface of the machine base, so that the machine base can enter the inner area of ​​the material drop chute 23. The four stroke cylinders 2 support the four ends of the limiting frame 3 respectively, so that the limiting frame 3 remains relatively horizontal during the lifting process, reducing the possibility of the limiting frame 3 tilting or getting stuck due to unilateral force.

[0035] After the limiting frame 3 is raised to the predetermined position, the first synchronous cylinder is controlled to work. The first synchronous cylinder drives two parallel push plates 4 to slide synchronously towards each other along the inner wall of the groove of the limiting frame 3, so that the two push plates 4 are close to the two opposite sides of the machine base in the first direction.

[0036] When one of the push plates 4 first contacts the side of the base, as the two push plates 4 continue to approach synchronously, the push plate 4 pushes the base, which has shifted its position, toward the direction of the other push plate 4, until the two push plates 4 respectively contact the two opposite sides of the base. Thus, the two push plates 4 can correct the position of the base from the first direction, so that the base is in the predetermined middle position of the limiting frame 3 in that direction.

[0037] After the position adjustment in the first direction is completed, the second synchronous cylinder is controlled to work, causing the two parallel push plates 8 to slide synchronously towards each other along the inner wall of the cavity of the limiting frame 3. The two push plates 8 respectively approach the two opposite sides of the machine base in the second direction, and push the machine base to move in the second direction through mutual cooperation until both push plates 8 are in contact with the corresponding sides of the machine base, thereby completing the position correction of the machine base in the second direction.

[0038] By having two push plates 4 and two push plates 8 move in opposite directions in sequence, the machine base can be aligned bidirectionally from multiple sides, moving it to the predetermined clamping position on the rotating base 1. Push plates 4 and 8 employ a segmented movement method, enabling position correction in one direction to be completed first, followed by correction in the other, reducing motion interference or oblique jamming of the machine base caused by two sets of push plates simultaneously pushing it.

[0039] After the clamping unit completes the formal clamping of the machine base, the first synchronous cylinder drives the two push plates 4 to move away from each other, and the second synchronous cylinder drives the two push plates 8 to move away from each other, so that the push plates 4 and 8 are respectively separated from the outer side of the machine base, releasing the pre-positioning function of the adjustment unit on the machine base. The pushing ends of the four stroke cylinders 2 extend synchronously, driving the limiting frame 3 to continue moving upward to the high-level avoidance position, and the limiting frame 3 moves away from the upper surface of the rotating base 1 and the cutting position of the machine base.

[0040] See Figure 5 and Figure 6 As shown, the bottom surface of the limiting frame 3 is located outside the groove cavity and is provided with a linear guide rail arranged parallel to the push plate 4. A slide plate 24 is installed on the slider of the linear guide rail, and a cleaning unit for wiping the upper surface of the rotating base 1 is installed on the bottom surface of the slide plate 24. A chip removal port 22 is connected to one side of the end face of the material discharge chute 23; The cleaning unit includes a cleaning section 27 fixedly connected to the slide plate 24. Both ends of the cleaning section 27 are equipped with a cleaning component 1 that contacts the bottom of the cavity in the material drop trough 23 and is parallel to the push plate 4. A cleaning component 2 is equipped with a cleaning component 2 that contacts the bottom of another cavity in the material drop trough 23. The cleaning component includes a lifting component 26, and the pushing end of the lifting component 26 is connected to the cleaning part 25; The second cleaning component includes a second lifting component 30. The pushing end of the second lifting component 30 is provided with a support plate. A slide rail 28 is mounted on the support plate, which is arranged parallel to the third cleaning component 27. A second cleaning component 29 that contacts the bottom of another cavity in the discharge chute 23 is mounted on the slider of the slide rail 28.

[0041] After the base machining is completed and the base is removed from the rotating base 1, the four stroke cylinders 2 drive the limiting frame 3 to descend, so that the cleaning unit installed on the bottom surface of the limiting frame 3 and the upper surface of the rotating base 1 form a working height suitable for cleaning. During this process, the first cleaning part and the third cleaning part 27 are at the same height. When the slide plate 24 moves on the linear guide rail, the third cleaning part 27 and the first cleaning part 25 on the bottom surface of the slide plate 24 move synchronously to wipe the upper surface of the rotating base 1, pushing the metal chips, dust and residual cutting fluid scattered on the upper surface of the rotating base 1 into the rectangular discharge chute 23.

[0042] When it is necessary to clean the two groove sections parallel to the push plate 4 in the material drop trough 23, the two lifting members 26 drive the corresponding cleaning parts 25 to descend, so that the two cleaning parts 25 extend into the material drop trough 23 and contact the two cavity bottoms of the material drop trough 23.

[0043] The slider on the linear guide rail drives the slide plate 24 to move in a direction parallel to the push plate 4. While the cleaning section 3 27 cleans the upper surface of the rotating base 1, the two cleaning sections 1 25 located at both ends of the cleaning section 3 27 move along the two parallel grooves of the discharge groove 23, pushing the metal shavings and cutting residues accumulated in the corresponding grooves to one end of the discharge groove 23.

[0044] When it is necessary to clean another section of the material discharge chute 23 that is perpendicular to the two parallel sections mentioned above, the lifting member 20 pushes the support plate down, so that the slide rail 28 and the cleaning part 29 installed on the support plate descend synchronously until the cleaning part 29 contacts the bottom of the corresponding section in the material discharge chute 23. After the cleaning part 29 enters the corresponding section of the material discharge chute 23, it is driven by the slide rail 28 to move along the section, pushing the debris in the section towards the position connected to the chip removal port 22.

[0045] In use, the clamping position is adjusted by two fitting clamping plates 5 and a slide block 10 that can move within the limiting slide groove 9, so that the fitting clamping unit can change the clamping distance according to the position and size of the side groove of the machine base. This reduces the problem that fixed clamps can only be adapted to a single specification of machine base, and improves the adaptability of the tooling to machine bases of different sizes and structures. By using a moving wedge block 18 to simultaneously push two pushing clamping blocks 16 and side blocks 14, the upper and lower clamping actions and the lateral clamping actions can be completed continuously. This reduces the problems of complex structure, many operation steps and asynchronous clamping actions caused by setting multiple clamping drive components, and improves clamping efficiency. The limiting frame 3 adopts a four-point synchronous lifting method. Before clamping the machine base, the limiting frame 3 rises to a height higher than the top surface of the machine base. The two push plates 4 are driven by the synchronous cylinder 1 to move closer to each other, which can push the machine base from the two opposite sides in the first direction, so that the machine base is automatically centered in the first direction, reducing the manual repeated measurement and adjustment of the machine base position. The two push plates 8 are driven by the synchronous cylinder 2 to move closer to each other, which can correct the position of the machine base from the two opposite sides in the second direction. Together with the two push plates 4, the machine base is centered in both directions, which improves the initial placement accuracy of the machine base on the rotating base 1 and reduces the situation where the forces of the two sets of push plates affect each other when they push at the same time, resulting in the machine base being tilted, stuck or inaccurately centered. By setting a linear guide rail, a sliding plate 24, and a cleaning section 27 on the bottom surface of the limiting frame 3, the adjustment unit, in addition to its use for pre-positioning the machine base, can automatically wipe the upper surface of the rotating base 1 after the machine base is removed, thereby increasing the functional utilization rate of the lifting structure of the limiting frame 3. The cleaning section 27 moves along the linear guide rail with the sliding plate 24, pushing the debris on the upper surface of the rotating base 1 into the discharge chute 23, reducing the amount of metal debris remaining on the placement and positioning surfaces of the machine base, and preventing tilting or positioning deviations caused by debris padding when placing the next machine base. Two cleaning sections 25 are respectively set at both ends of the cleaning section 27. When the slide plate 24 moves in a straight line, it can clean two parallel sections in the discharge chute 23 at the same time, reducing the number of reciprocating motions required to clean the two sections separately and improving the chip removal efficiency. The first cleaning section 25 is raised and lowered by the first lifting member 26, so that the first cleaning section 25 only enters the discharge chute 23 when cleaning the corresponding section, and rises and exits after cleaning. The second cleaning section 29 is raised and lowered as a whole by the second lifting member 30 and moves in another direction by the slide rail 28, which can supplement the cleaning of the sections of the discharge chute 23 that are difficult to cover in the direction of movement of the first cleaning section 25, thereby improving the cleaning integrity of the rectangular discharge chute 23.

[0046] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A positioning and clamping fixture for machining metal product bases, comprising a rotating base (1), characterized in that: The upper surface of the rotating base (1) and the outer side of the machine base are provided with a rectangular material drop groove (23), and the upper end face edge of the rotating base (1) is equipped with a segmented motion adjustment unit. The upper surface of the rotating base (1) is slidably fitted with a clamping unit that restricts the machine base side groove; The bonding clamping unit includes two bonding clamps (5), each bonding clamp (5) has two limiting grooves (9) embedded in it, and the two limiting grooves (9) have sliding blocks (10) inside them. The two blocks (10) slide close to or away from each other at the same time. The slide (10) is provided with rail grooves (11) above and below the surface. Each rail groove (11) is equipped with a pusher block (16) inside the rail groove (11), and a spring (12) connected to the corresponding pusher block (16) is installed inside the rail groove (11). A side block (14) is installed on the side of the two pusher blocks (16) near the edge of the clamping plate (5). The side block (14) slides into the groove inside the slide (10), and a spring (2) (13) is installed inside the groove. The outer surface of the side block (14) is provided with a protrusion (15) that contacts the inner wall of the side groove of the machine base. The inner side of the push clamp (16) and the side away from the side block (14) is provided with an inclined part (17). The outer surface of the slide (10) and the side away from the side block (14) is provided with a moving wedge (18) that abuts against the inner surface of the inclined part (17). The middle surface of the moving wedge (18) is provided with a top block (19) that abuts against the surface of the side block (14). The surface of the slide (10) is fitted with a pusher that moves the moving wedge (18).

2. The positioning and clamping fixture for machining metal product bases according to claim 1, characterized in that, The pusher includes a mounting block (20) mounted on the inner side of the slide (10). The mounting block (20) has an L-shaped structure, and an electric cylinder (21) is mounted on the L-shaped end of the mounting block (20). The pushing end of the electric cylinder (21) is fixed to the moving wedge (18). Each of the limiting slide grooves (9) is provided with a transmission screw inside. The two transmission screws have opposite thread directions and are threadedly connected to the corresponding slide block (10).

3. The positioning and clamping fixture for machining metal product bases according to claim 1, characterized in that, The two fitting clamps (5) are connected by the same connecting plate (6) on their outer sides. A clamping cylinder (7) is installed in the middle of the edge of the side of the rotating base (1). The pushing end of the clamping cylinder (7) is fixedly connected to the middle surface of the connecting plate (6). A sliding rod is fixed to the outer surface of the connecting plate (6), and the sliding rod is slidably set with the fixed plate at the edge of the rotating base (1).

4. The positioning and clamping fixture for machining metal product bases according to claim 1, characterized in that, The four ends of the upper surface of the rotating base (1) are each equipped with a stroke cylinder (2). The pushing end of the stroke cylinder (2) is fixed to the bottom surface of the limiting frame (3). The length and width of the groove in the middle of the limiting frame (3) are both greater than the length and width of the base.

5. The positioning and clamping fixture for machining metal product bases according to claim 1, characterized in that, The adjustment unit includes a limiting frame (3), and the inner wall of the cavity of the limiting frame (3) is slidably embedded with a first limiting member and a second limiting member; The first limiting component includes two parallel push plates (4), and the second limiting component includes two parallel push plates (8). The two push plates (4) are pushed closer together by a synchronous cylinder, and the two push plates (8) are pushed closer together by a synchronous cylinder.

6. The positioning and clamping fixture for machining metal product bases according to claim 5, characterized in that, The bottom surface of the limiting frame (3) is located outside the groove cavity and is provided with a linear guide rail arranged parallel to the push plate (4). A slide plate (24) is installed on the slider of the linear guide rail. A cleaning unit for wiping the upper surface of the rotating base (1) is installed on the bottom surface of the slide plate (24). The end face of the material discharge trough (23) is connected to a chip removal port (22).

7. The positioning and clamping fixture for machining metal product bases according to claim 6, characterized in that, The cleaning unit includes a cleaning section three (27) fixedly connected to the slide plate (24). Both ends of the cleaning section three (27) are provided with a cleaning component one that contacts the bottom of the cavity in the material drop trough (23) and is parallel to the push plate one (4). One side of the cleaning section three (27) is provided with a cleaning component two that contacts the bottom of another cavity in the material drop trough (23).

8. The positioning and clamping fixture for machining metal product bases according to claim 7, characterized in that, The cleaning component includes a lifting component (26), and the pushing end of the lifting component (26) is connected to the cleaning part (25). The second cleaning component includes a second lifting component (30). The pushing end of the second lifting component (30) is provided with a support plate. A slide rail (28) arranged parallel to the third cleaning component (27) is installed on the support plate. The second cleaning component (29) that contacts the bottom of another cavity in the material drop trough (23) is installed on the slider of the slide rail (28).

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