Metal workpiece clamping and positioning table

Abstract

The utility model discloses a kind of metal processing piece clamping positioning platform, including positioning workbench and the desk leg for supporting fixedly being arranged in the lower side four corners of positioning workbench, the upper side inside of positioning workbench is equidistant array and is provided with multiple positioning holes, traditional clamping tool (such as vice, fixed pressing plate) are mostly " fixed point + single direction " design, cannot be adapted to special-shaped, multi-specification metal processing piece (such as irregular support, arc shell), and innovative structure is inserted by " positioning socket + positioning hole " insert fitting, can clamping structure be switched to any positioning hole on positioning workbench, realize the " modularization " adjustment of clamping point;Meanwhile, positioning socket can rotate in 360 degrees in positioning hole, combined with the linkage of gear ring and positioning rod, the clamping angle of positioning rod can be flexibly changed, can be realized from the side, bevel, end surface etc. Multiple direction of processing piece realizes resistance fixed, adapts to the full-scene clamping demand from flat plate type, shaft type to special-shaped piece.

Description

Technical Field

[0001] This utility model belongs to the technical field of metal part clamping and positioning tables, specifically relating to a metal processing part clamping and positioning table. Background Technology

[0002] A metalworking clamping and positioning table is a specialized piece of equipment or workbench assembly used to fix and position workpieces during metalworking. Its core function is to firmly secure the metal workpiece to be machined using specific structures (such as clamps, locating pins, and datum surfaces), while ensuring the workpiece is in a precise position and orientation during machining to guarantee machining accuracy (such as dimensional, shape, and positional tolerances). In practical applications, clamping and positioning tables need to be designed or adjusted according to the shape, size, and machining requirements of the workpiece. They are commonly found in metal cutting equipment such as lathes, milling machines, and grinding machines, and are important auxiliary devices for ensuring machining quality and efficiency.

[0003] Traditional clamping tools (such as vises and fixed clamping plates) are mostly designed with "fixed points and one direction", which cannot be adapted to irregularly shaped and multi-specification metal processing parts (such as irregular brackets and curved shells). Utility Model Content

[0004] The purpose of this utility model is to provide a metal processing part clamping and positioning platform to solve the problem that traditional clamping tools (such as vises and fixed pressure plates) in the above-mentioned background art are mostly designed with "fixed point + single direction", which cannot be adapted to irregular and multi-specification metal processing parts (such as irregular brackets and arc-shaped shells).

[0005] To achieve the above objectives, the present invention provides the following technical solution: a metal processing workpiece clamping and positioning table, comprising a positioning worktable and table legs disposed at the four corners of the lower side of the positioning worktable for support and fixation;

[0006] The upper side of the positioning worktable has multiple positioning holes arranged in an equidistant array.

[0007] A positioning socket is provided on the inner side of the positioning hole on one side. A threaded groove is provided in the middle of the positioning socket. A gear ring is provided on the upper side of the positioning socket. A threaded rod is provided on the inner side of the middle of the gear ring. Slide rails are provided on the front and rear sides of the threaded rod. Locking blocks are slidably connected to the interior of the slide rails on the front and rear sides. Locking grooves that engage with the locking blocks are provided at both ends of the upper side of the gear ring.

[0008] A fixing ring is fitted and connected to the upper outer side of the gear ring. A positioning rod is provided at one outer end of the gear ring. A sliding groove is provided on the inner side of the middle of the positioning rod. Multiple serrations are provided at the connection between the positioning rod and the gear ring. A fixing frame is provided on one outer side of the positioning rod. A fixing rod is provided at the connection between the fixing frame and the inner part of the sliding groove of the positioning rod.

[0009] Preferably, the positioning socket is connected to the positioning hole via an insert connection, and a plug ring is provided on the lower side of the gear ring.

[0010] Preferably, the gear ring is connected to the positioning socket via a plug-in connection using a plug-in ring, and the gear ring can rotate within the positioning socket via the plug-in ring.

[0011] Preferably, the fixing ring can rotate outside the upper side of the gear ring, one side of the fixing ring extends vertically outward, and a plug is provided below the extended end. The plug is connected to the inner groove of the positioning rod by an insertion connection.

[0012] Preferably, the two locking blocks are connected to the slide rail via a sliding connection, and the two locking blocks can move up and down within the slide rail.

[0013] Preferably, the locking block can be fitted and connected to the locking groove through a nested connection, and the threaded rod passes through the gear ring and is connected to the internal threaded groove of the positioning base through a threaded connection.

[0014] Preferably, the threaded rod can rotate within the threaded groove via the thread. After the two locking blocks are engaged in the locking groove, the threaded rod can rotate on the positioning base via the locking blocks and the driving gear ring.

[0015] Preferably, the fixing frame is connected to the positioning workbench by bolt connection, and the lower end of the table legs is provided with foot pads.

[0016] Compared with the prior art, the present invention provides a metal workpiece clamping and positioning table, which has the following advantages:

[0017] The innovation of this metalworking clamping and positioning table (the linkage adjustment structure composed of positioning socket, gear ring, threaded rod, positioning rod, etc.) is designed around the core requirements of "flexible adaptation, precise control, and efficient operation". Compared with traditional clamping solutions, it brings multiple significant advantages in clamping flexibility, adjustment accuracy, operating efficiency, and machining safety, as detailed below:

[0018] 1. Traditional clamping tools (such as vises and fixed clamping plates) are mostly designed with "fixed points + single direction", which cannot adapt to irregularly shaped and multi-specification metal parts (such as irregular brackets and curved shells). The innovative structure, through the interlocking of "positioning socket + positioning hole", can quickly switch the clamping structure to any positioning hole on the positioning worktable, realizing "modular" adjustment of the clamping point; at the same time, the positioning socket can rotate 360° in the positioning hole, and combined with the linkage between the gear ring and the positioning rod, it can flexibly change the clamping angle of the positioning rod (0°-360° adjustable), and can achieve contact fixation from multiple directions such as the side, inclined surface, and end face of the workpiece, adapting to the clamping needs of all scenarios from flat plates and shafts to irregularly shaped parts.

[0019] 2. For metal parts of different sizes (e.g., length 50mm-500mm, width 30mm-300mm), traditional solutions require changing to different specifications of fixtures (e.g., vises with different openings, pressure plates of different lengths), with changeover time exceeding 30 minutes. The innovative structure, through the transmission of a threaded rod and gear ring, allows for precise adjustment of the extension length of the positioning rod (adjustment range 0-100mm, accuracy 0.1mm). No parts need to be replaced; simply rotating the threaded rod adapts to different sized parts, significantly improving the efficiency of multi-variety, small-batch production.

[0020] 3. Traditional manual clamping relies on operator experience and is prone to clamping position deviations (typically ≥0.5mm) due to uneven force application, affecting machining dimensional accuracy. The innovation lies in using a gear ring and positioning rod meshing transmission (gear module can be designed to be 0.5mm-1mm), converting the rotational motion of the threaded rod into the linear motion of the positioning rod. Combined with the dual guiding and limiting of the fixed rod and the insertion rod, the movement error of the positioning rod can be controlled within 0.1mm. Simultaneously, the self-locking characteristic of the threaded connection (thread helix angle ≤3°) prevents machining vibration from causing the positioning rod to loosen, improving clamping position stability.

[0021] 3. For thin-walled metal parts (such as aluminum alloy plates with a thickness ≤2mm), traditional single-point clamping is prone to deformation (deformation ≥0.2mm) due to excessive local stress. The innovative structure of this device can arrange multiple clamping units around the workpiece, and apply counterforce evenly from different directions through multiple positioning rods (the clamping force of each positioning rod can be precisely controlled by the torque of the threaded rod), so that the workpiece is subjected to balanced force and avoids local stress concentration.

[0022] 4. Vibration during traditional machining processes can easily cause traditional fixtures to loosen, requiring inspection every hour. However, the innovative structure of this device uses a double locking mechanism with thread self-locking (self-locking between the threaded rod and the threaded groove) and locking block engagement (tight fit between the locking block and the locking groove) to resist machining vibrations below a certain frequency. At the same time, the interference fit between the positioning socket and the positioning hole can prevent the positioning socket from shifting during vibration, ensuring a stable clamping position without the need for frequent inspection and adjustment. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the positioning worktable in this utility model.

[0024] Figure 2 This is a schematic diagram of the innovative structure on the upper right side of this utility model.

[0025] Figure 3 In this utility model Figure 2 A structural diagram from the bottom middle view.

[0026] Figure 4 In this utility model Figure 2 A schematic diagram showing the structure after the positioning socket moves downward and the fixing ring and threaded rod move upward.

[0027] Figure 5 In this utility model Figure 2 A magnified structural diagram of the central circular region.

[0028] Figure 6 In this utility model Figure 3 A magnified structural diagram of the central circular region.

[0029] Figure 7 In this utility model Figure 4 A magnified structural diagram of the central circular region.

[0030] In the diagram: 1. Positioning worktable; 2. Positioning hole; 3. Table leg; 4. Foot pad; 5. Gear ring; 6. Positioning rod; 7. Slide groove; 8. Fixing bracket; 9. Threaded rod; 10. Serrated edge; 11. Fixing rod; 12. Locking block; 13. Positioning socket; 14. Fixing ring; 15. Slide rail; 16. Insert rod; 17. Insert ring; 18. Threaded groove; 19. Locking groove. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] This utility model provides, for example Figure 1-7 The metal processing part clamping and positioning table shown includes a positioning worktable 1 and table legs 3 arranged at the four corners of the lower side of the positioning worktable 1 for support and fixation.

[0033] Multiple positioning holes 2 are equidistantly arranged inside the upper side of the positioning worktable 1.

[0034] A positioning socket 13 is provided inside the positioning hole 2 on one side. A threaded groove 18 is provided in the middle of the positioning socket 13. A gear ring 5 is provided on the upper side of the positioning socket 13. A threaded rod 9 is provided on the middle inner side of the gear ring 5. A slide rail 15 is provided on the front and rear sides of the threaded rod 9. A locking block 12 is slidably connected inside the front and rear slide rails 15. A locking groove 19 is provided at both ends of the upper side of the gear ring 5 to engage with the locking block 12. A fixing ring 14 is fitted and connected to the upper outer side of the gear ring 5. A positioning rod 6 is provided at one end of the outer side of the gear ring 5. A slide groove 7 is provided on the middle inner side of the positioning rod 6. Multiple serrations 10 are provided at the connection between the positioning rod 6 and the gear ring 5. A fixing bracket 8 is provided on one side of the positioning rod 6. A fixing rod 11 is provided at the connection between the fixing bracket 8 and the slide groove 7 of the positioning rod 6.

[0035] The fixed frame 8 is connected to the positioning workbench 1 by bolt connection, and the lower end of the table leg 3 is provided with a foot pad 4.

[0036] In this embodiment, the core basic structure of the metal workpiece clamping and positioning table is used to provide stable placement and initial positioning support for the metal workpiece. It mainly consists of a positioning worktable 1, table legs 3, foot pads 4, and positioning holes 2. The positioning worktable 1, as the core load-bearing component, is made of high-strength alloy material (Q235 steel) to ensure that the table surface is flat and free from deformation when the metal workpiece is placed. The table legs 3 are fixed to the four corners of the lower side of the positioning worktable 1 by welding or bolting to form a stable support frame. The foot pads 4 are made of rubber, which increases the friction between the table legs 3 and the ground to prevent the equipment from shifting during processing, and also buffers the impact of processing vibration on the stability of the table surface. The positioning holes 2 are equidistantly arrayed on the upper side of the positioning worktable 1 to provide basic positioning points for the subsequent installation of the clamping structure. The hole diameter and hole spacing are designed according to the common metal workpiece sizes (e.g., hole diameter 10-15mm, hole spacing 50-100mm) to adapt to the clamping requirements of workpieces of different specifications.

[0037] Optionally, before starting work, the user can place the positioning workbench 1 on a flat surface in the processing workshop using the table legs 3, ensuring that the foot pads 4 are fully in contact with the ground without any suspension or wobbling; check whether the table surface of the positioning workbench 1 is level, which can be calibrated with a level. If there is any tilt, the table surface can be leveled by adjusting the height of the foot pads 4 (some foot pads 4 are designed with an adjustable thread structure), providing a reference for the positioning of subsequent processed parts.

[0038] Next, based on the size and shape of the metal part to be processed, select a suitable area on the positioning worktable 1 and place the workpiece directly on the table. If the workpiece needs to be initially positioned, simple positioning can be achieved using the positioning holes 2. After clamping, metal processing operations (such as drilling, milling, and grinding) can be carried out. After processing, first remove the external clamping tools, take off the workpiece, clean the iron filings, coolant, and other impurities remaining on the table surface of the positioning worktable 1, and check whether the positioning holes 2 are blocked. If there is any blockage, it should be cleaned in time to prepare for the next use.

[0039] The equidistant array layout of the positioning holes 2 provides a unified positioning reference for the workpiece and the external clamping tool. By aligning the workpiece or clamping tool with the positioning holes 2, the error of manual positioning can be reduced, ensuring that the position of the workpiece on the table is relatively fixed, and providing a basic coordinate reference for subsequent machining operations (such as tool path planning).

[0040] like Figure 1-7 As shown, the positioning socket 13 is connected to the positioning hole 2 via a plug-in connection. A retaining ring 17 is provided on the lower side of the gear ring 5. The gear ring 5 is connected to the positioning socket 13 via the retaining ring 17 using a plug-in connection, and the gear ring 5 can rotate within the positioning socket 13 via the retaining ring 17. The fixing ring 14 can rotate on the upper outside of the gear ring 5. One side of the fixing ring 14 extends vertically outward, and a plug rod 16 is provided below the extended end. The plug rod 16 is connected to the sliding groove 7 inside the positioning rod 6 via a plug-in connection, and the two are locked together. Block 12 is connected to slide rail 15 by sliding connection, and the two locking blocks 12 can move up and down in slide rail 15. The locking blocks 12 can be fitted into locking groove 19 by nesting connection. Threaded rod 9 passes through gear ring 5 and is connected to threaded groove 18 inside positioning base by threaded connection. Threaded rod 9 can rotate in threaded groove 18 by thread. After the two locking blocks 12 are fitted into locking groove 19, threaded rod 9 can drive gear ring 5 to rotate on positioning base by locking blocks 12.

[0041] Preferably, the innovative structure of this device is the core of achieving precise and flexible clamping of metal processing parts, mainly including components such as positioning socket 13, gear ring 5, threaded rod 9, locking block 12, positioning rod 6, fixing frame 8, fixing ring 14, insertion rod 16, and insertion ring 17. Positioning socket 13 serves as the connecting base, cooperating with positioning hole 2 to achieve initial positioning of the innovative structure; gear ring 5 is rotatably connected to positioning socket 13 via insertion ring 17, providing a core component for transmission; threaded rod 9 cooperates with the threaded groove 18 of positioning socket 13, achieving force transmission and position adjustment through rotation; locking block 12 cooperates with slide rail 15 and locking groove 19 to control the linkage state between threaded rod 9 and gear ring 5; positioning rod 6 meshes with gear ring 5 through sawtooth 10, converting the rotation of gear ring 5 into its own linear displacement; fixing frame 8, fixing rod 11, fixing ring 14, and insertion rod 16 work together to provide guidance and limit for the movement of positioning rod 6, ensuring adjustment accuracy.

[0042] First, the user selects a suitable positioning hole 2 on the positioning worktable 1 according to the size of the metal part to be processed and the clamping requirements. The positioning socket 13 is then inserted into the selected positioning hole 2 through a plug-in connection method to ensure that the positioning socket 13 fits tightly with the positioning hole 2 without any looseness. If multi-directional clamping is required, the positioning socket 13 can be installed in multiple positioning holes 2 around the workpiece to form a multi-point collaborative clamping.

[0043] Next, align the insert ring 17 on the lower side of the gear ring 5 with the upper opening of the positioning socket 13, and install the gear ring 5 on the positioning socket 13 through the insertion connection. At this time, the gear ring 5 can rotate freely in the positioning socket 13 through the insert ring 17. Then, fit the fixing ring 14 on the upper outside of the gear ring 5, adjust the position of the fixing ring 14 so that the insert rod 16 below the extension of the fixing ring 14 is aligned with the slide groove 7 of the positioning rod 6 to be installed later.

[0044] Next, place the positioning rod 6 on the outside of the gear ring 5 so that the serration 10 on the positioning rod 6 meshes with the outer teeth of the gear ring 5. At the same time, fix the fixing frame 8 on the positioning worktable 1 by bolt connection, ensuring that the fixing rod 11 on the fixing frame 8 slides into the groove 7 of the positioning rod 6, completing the initial guidance of the positioning rod 6. Finally, insert the insertion rod 16 into the groove 7 of the positioning rod 6. At this time, under the double limit of the fixing rod 11 and the insertion rod 16, the positioning rod 6 can only move in a straight line along the direction of the groove 7.

[0045] Preferably, the operator first places the metal part to be processed in the preset position of the positioning worktable 1, and then adjusts the state of the locking block 12: pull the locking block 12 upward so that it moves upward along the slide rail 15 of the threaded rod 9 and disengages from the locking groove 19 on the upper side of the gear ring 5; at this time, rotate the threaded rod 9. Since the threaded rod 9 and the threaded groove 18 of the positioning socket 13 are connected by threads, the threaded rod 9 will move up and down along the axis under the action of the threads. By adjusting the height of the threaded rod 9, the initial height of the gear ring 5 and the positioning rod 6 can be indirectly adjusted to ensure that the end of the positioning rod 6 can contact the edge of the workpiece.

[0046] After the height of the threaded rod 9 is adjusted to the correct position, press down on the locking block 12 to move it down along the slide rail 15 and re-engage it into the locking groove 19 of the gear ring 5. At this time, the threaded rod 9 and the gear ring 5 form a linkage relationship through the locking block 12. When the threaded rod 9 is rotated, the threaded rod 9 will drive the gear ring 5 to rotate around the axis of the positioning socket 13 through the locking block 12.

[0047] When the gear ring 5 rotates, its outer teeth mesh with the sawtooth 10 of the positioning rod 6. Since the positioning rod 6 is limited by the fixing rod 11 and the insertion rod 16, it cannot rotate and can only convert the rotational motion of the gear ring 5 into its own linear motion along the slide groove 7. The operator controls the rotation direction of the gear ring 5 by rotating the threaded rod 9 clockwise or counterclockwise, and then controls the positioning rod 6 to move closer to or away from the workpiece until the end of the positioning rod 6 tightly contacts the edge of the metal workpiece to be processed, thus completing the clamping of a single point.

[0048] If the workpiece needs to be fixed in multiple directions, repeat the above steps and adjust the positioning rods 6 with the innovative structure in other positioning holes 2 so that multiple positioning rods 6 abut against the workpiece from different directions to form a stable clamping force, ensuring that the workpiece is completely fixed on the table without any loosening or displacement space.

[0049] Preferably, if it is necessary to change the clamping angle of the positioning rod 6, first loosen the bolts connecting the fixing frame 8 and the positioning worktable 1, remove the fixing frame 8, and then pull the locking block 12 upward to disengage the gear ring 5 from the threaded rod 9; then grasp the gear ring 5 and drive the positioning socket 13 to rotate in the positioning hole 2 through the insertion ring 17 (the positioning socket 13 and the positioning hole 2 are clearance fit and can rotate freely). When the positioning socket 13 rotates, it will drive the gear ring 5 and the positioning rod 6 to rotate synchronously, thereby changing the angle of the positioning rod 6. After adjusting to a suitable angle, fix the fixing frame 8 back to the positioning worktable 1 with bolts to ensure that the fixing rod 11 slides into the groove 7 of the positioning rod 6 again. Then, adjust the position of the positioning rod 6 according to the above clamping and adjustment steps to complete the clamping at different angles; if it is necessary to adjust the overall position of the innovative structure, simply pull the positioning socket 13 out of the current positioning hole 2 and insert it into other suitable positioning holes 2, and repeat the assembly and adjustment steps.

[0050] Optionally, after the metal processing is completed, pull the locking block 12 upward to release the linkage between the threaded rod 9 and the gear ring 5, rotate the threaded rod 9 counterclockwise to drive the gear ring 5 to rotate in the opposite direction, so that the positioning rod 6 moves away from the workpiece and releases the resistance to the workpiece; then the workpiece can be removed directly. If other workpieces need to be processed later, the above clamping steps can be repeated.

[0051] Preferably, the insertion and engagement of the positioning socket 13 and the positioning hole 2 enables the "modular" position switching of the innovative structure on the positioning worktable 1. By selecting different positioning holes 2, the clamping point can be quickly adjusted to adapt to workpieces of different sizes. At the same time, the rotational connection between the gear ring 5 and the positioning socket 13, combined with the angle adjustment of the positioning rod 6, enables 360° flexible adjustment of the clamping direction, solving the problems of fixed direction and poor adaptability of traditional clamping tools.

[0052] The threaded drive design of the threaded rod 9 and the threaded groove 18 converts the operator's rotational force into axial displacement, enabling precise adjustment of the initial height of the positioning rod 6. Meanwhile, the gear meshing transmission between the gear ring 5 and the positioning rod 6 converts rotational motion into linear motion. By controlling the number of rotations of the threaded rod 9, the movement distance of the positioning rod 6 can be precisely controlled (e.g., if the gear module is 1mm, rotating the gear ring 5 once moves the positioning rod 6 by a distance of π×module×number of teeth), achieving precise control of clamping force and position, with an adjustment accuracy of up to 0.1mm.

[0053] Preferably, the locking block 12 acts as a "clutch" component, cooperating with the slide rail 15 and the locking groove 19 to achieve the linkage switching between the threaded rod 9 and the gear ring 5. When the locking block 12 is engaged, the rotation of the threaded rod 9 is transmitted to the gear ring 5 through the locking block 12, achieving a "one-turn-multiple-action" linkage effect; when the locking block 12 is disengaged, the threaded rod 9 can be independently adjusted in height, while the gear ring 5 remains fixed, meeting the needs of different adjustment scenarios and providing flexible and convenient operation.

[0054] The fixed frame 8, fixed rod 11, fixed ring 14, and insertion rod 16 form a double guide and limit structure, which restricts the movement direction of the positioning rod 6 and ensures that it only moves in a straight line along the preset trajectory, avoiding the positioning rod 6 from shifting during the adjustment process and causing clamping errors. At the same time, the self-locking characteristic of the threaded connection (the thread helix angle is less than the equivalent friction angle) allows the threaded rod 9 to maintain its current position stably when there is no external force to rotate. The gear ring 5 and the positioning rod 6 are also fixed accordingly, preventing the positioning rod 6 from loosening due to vibration during the processing and ensuring clamping stability.

[0055] During clamping, the contact force between the end of the positioning rod 6 and the workpiece is transmitted to the gear ring 5 through gear meshing, and then distributed to the positioning socket 13 through the insert ring 17, and finally transmitted to the positioning worktable 1 and the table leg 3, forming a complete force transmission path. Since the positioning socket 13 is inserted into the positioning hole 2, the positioning hole 2 can provide radial support for the positioning socket 13 to prevent it from deforming under force. At the same time, the forces at multiple clamping points are balanced with each other, which can evenly distribute the clamping force on the workpiece and prevent excessive local force from causing deformation of the workpiece. It is especially suitable for clamping thin-walled and easily deformable metal workpieces.

[0056] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A metal processing part clamping and positioning table, comprising a positioning worktable (1) and table legs (3) disposed at the four corners of the lower side of the positioning worktable (1) for support and fixation; The upper side of the positioning workbench (1) has multiple positioning holes (2) arranged in an equidistant array; Its features are: A positioning socket (13) is provided on the inner side of the positioning hole (2) on one side. A threaded groove (18) is provided in the middle of the positioning socket (13). A gear ring (5) is provided on the upper side of the positioning socket (13). A threaded rod (9) is provided on the inner side of the middle of the gear ring (5). A slide rail (15) is provided on the front and rear sides of the threaded rod (9). A locking block (12) is slidably connected in the interior of the slide rail (15) on the front and rear sides. A locking groove (19) that engages with the locking block (12) is provided at both ends of the upper side of the gear ring (5). A fixing ring (14) is fitted and connected to the upper outer side of the gear ring (5). A positioning rod (6) is provided at one outer end of the gear ring (5). A sliding groove (7) is provided on the inner side of the middle of the positioning rod (6). Multiple serrations (10) are provided at the connection between the positioning rod (6) and the gear ring (5). A fixing frame (8) is provided on one side of the positioning rod (6). A fixing rod (11) is provided at the connection between the fixing frame (8) and the sliding groove (7) of the positioning rod (6).

2. The metalworking part clamping and positioning table according to claim 1, characterized in that: The positioning socket (13) is connected to the positioning hole (2) by a plug-in connection, and a plug ring (17) is provided on the lower side of the gear ring (5).

3. A metalworking part clamping and positioning table according to claim 2, characterized in that: The gear ring (5) is connected to the positioning socket (13) by means of a plug ring (17), and the gear ring (5) can rotate in the positioning socket (13) through the plug ring (17).

4. A metalworking part clamping and positioning table according to claim 3, characterized in that: The fixing ring (14) can rotate on the outside of the upper side of the gear ring (5). One side of the fixing ring (14) extends vertically outward, and a plug rod (16) is provided below the extended end. The plug rod (16) is connected to the inner groove (7) of the positioning rod (6) by an insertion connection.

5. A metalworking workpiece clamping and positioning table according to claim 4, characterized in that: The two locking blocks (12) are connected to the slide rail (15) by a sliding connection, and the two locking blocks (12) can move up and down within the slide rail (15).

6. A metalworking part clamping and positioning table according to claim 5, characterized in that: The locking block (12) can be fitted and connected to the locking groove (19) by means of nesting connection. The threaded rod (9) passes through the gear ring (5) and is connected to the internal threaded groove (18) of the positioning base by means of threaded connection.

7. A metalworking part clamping and positioning table according to claim 6, characterized in that: The threaded rod (9) can rotate in the threaded groove (18) through the thread. After the two locking blocks (12) are engaged in the locking groove (19), the threaded rod (9) can rotate on the positioning base by connecting the locking blocks (12) with the driving gear ring (5).

8. A metalworking part clamping and positioning table according to claim 1, characterized in that: The fixed frame (8) is connected to the positioning workbench (1) by bolt connection, and the lower end of the table leg (3) is provided with a foot pad (4).

Images