A stamping positioning structure of an automatic stamping lathe

Abstract

The utility model relates to stamping positioning technical field, and disclose a kind of stamping positioning structure of automatic stamping lathe, including machine body.The stamping positioning structure of automatic stamping lathe, through the reverse thread design of two-way threaded rod both ends, cooperate drive motor drive, drive two moving plates along rectangular hole move towards or reverse;The movement of moving plate is transmitted to the connecting seat above workbench through movable column, and then drive T type limit post flexible adjustment spacing;Meanwhile, the cooperation of connecting piece and T type limit post forms specific clamping space, after workpiece is placed between T type limit post and connecting seat, the resistance spring in connecting piece can be self-adapting workpiece of different thickness by elastic force, and form stable downward resistance on workpiece upper surface;The design is compatible with workpiece of different thickness specifications again, substantially improve the adaptation ability of equipment to diversification workpiece, reduce the design and replacement cost of special positioning structure, significantly enhance equipment application range.

Description

Technical Field

[0001] This utility model relates to the field of stamping positioning technology, specifically a stamping positioning structure for an automatic stamping lathe. Background Technology

[0002] A punch press is a stamping press. In national production, stamping technology has become increasingly widely used because it saves materials and energy, is more efficient than traditional machining, does not require high operator skills, and can produce products that cannot be achieved by machining through the application of various molds.

[0003] In the use of automatic stamping lathes, due to the continuous reciprocating impact of the stamping head on the workpiece, the existing workpiece positioning structure is cumbersome to install and disassemble, and is prone to loosening due to the influence of reciprocating stamping, resulting in poor workpiece fixing effect. Therefore, we propose a stamping positioning structure for automatic stamping lathes to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a stamping positioning structure for an automatic stamping lathe, which solves the problems mentioned in the background art.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a stamping positioning structure of an automatic stamping lathe, including a machine body, a bracket fixedly installed at the bottom of the machine body, a stamping head movably installed on the side of the machine body, and a worktable fixedly installed on the bracket below the stamping head, with a workpiece to be stamped placed on the worktable. The workbench has a cavity and several rectangular holes that communicate with the cavity. A bidirectional threaded rod is rotatably connected inside the cavity. The workbench is equipped with a driving component, which outputs rotational power to drive the bidirectional threaded rod to rotate. The cavity contains two movable plates, which are threaded to both ends of a bidirectional threaded rod with opposite thread directions. Several movable columns are fixedly connected to the upper surfaces of the two movable plates, with the tops of each column penetrating the interior of a rectangular hole and extending above the worktable. A connecting seat is fixedly connected to the top of each movable column. A support column is fixedly installed on the connecting seat, and a T-shaped limiting column for pressing against the workpiece is movably connected to the support column via a connector for positioning and fixing the workpiece.

[0006] Furthermore, the driving component includes a drive motor fixedly mounted on the side of the worktable, and the output end of the drive motor is fixedly connected to one end of a bidirectional threaded rod via a coupling.

[0007] Furthermore, the connector includes a T-slot formed on the support column, a T-shaped column slidably connected within the T-slot, and a resistance spring provided within the T-slot. The two ends of the resistance spring are respectively in close contact with the bottom end of the T-shaped column and the inner wall of the T-slot, for continuously providing elastic force toward the workpiece to the T-shaped column, thereby enhancing the clamping force of the T-shaped limiting column on the workpiece. A dovetail block is integrally formed at the top of the T-shaped column, and a movable groove adapted to the shape of the support column is formed at the bottom of the T-shaped limiting column. A dovetail groove communicating with the movable groove is formed on the upper surface of the T-shaped limiting column, and the width and depth of the dovetail groove are adapted to the width and height of the dovetail block. The dovetail block is slidably connected within the dovetail groove to restrict the T-shaped limiting column to move only along the length direction of the support column.

[0008] Furthermore, rolling bearings are provided at the connection points between both ends of the bidirectional threaded rod and the inner wall of the cavity, and the inner ring of the rolling bearing is interference-fitted with the outer wall of the bidirectional threaded rod. The outer ring of the rolling bearing is fixedly connected to the inner wall of the cavity to reduce the frictional resistance between the bidirectional threaded rod and the inner wall of the cavity when it rotates.

[0009] Furthermore, the upper surface of the connecting seat is provided with an annular limiting groove. The width of the limiting groove is adapted to the thickness of the bottom end of the T-shaped limiting post. The bottom end of the T-shaped limiting post is embedded in the limiting groove and slidably connected to it to limit the movement trajectory of the T-shaped limiting post and prevent it from shifting during the process of pressing against the workpiece. The outer wall of the workpiece is movably connected between the T-shaped limiting post and the connecting seat.

[0010] Furthermore, the T-shaped limiting post has an anti-slip structure on the side near the workpiece. The anti-slip structure consists of uniformly distributed rhomboid protrusions with a height of 0.5-1mm, which is used to increase the static friction between the T-shaped limiting post and the workpiece.

[0011] The beneficial effects of this utility model are: 1. The stamping positioning structure of this automatic stamping lathe, through the reverse thread design at both ends of the bidirectional threaded rod, and in conjunction with the drive motor, can drive two moving plates to move in opposite directions or in the opposite direction along the cavity. The movement of the moving plates is transmitted to the connecting seat above the worktable via the movable column, which in turn drives the T-shaped limit column to flexibly adjust the spacing. At the same time, the cooperation between the connecting piece and the T-shaped limit column forms a specific clamping space. After the workpiece is placed between the T-shaped limit column and the connecting seat, the resistance spring in the connecting piece can adapt to workpieces of different thicknesses through elastic force, forming a stable downward resistance on the upper surface of the workpiece. This design is suitable for workpieces of different widths and thicknesses, eliminating the need to customize positioning components for specific workpieces, greatly improving the equipment's adaptability to diverse workpieces, reducing the design and replacement costs of dedicated positioning structures, and significantly enhancing the equipment's applicability.

[0012] 2. The stamping positioning structure of this automatic stamping lathe effectively guides and limits the movement trajectory of the movable column through rectangular holes in the worktable, preventing the moving plate from shifting or wobbling during movement and ensuring the stability of the horizontal movement of the connecting seat and T-shaped limit column. Through the cooperation of the connecting part and the T-shaped limit column, the workpiece is stably placed between the T-shaped limit column and the connecting seat. Then, with the help of the downward resistance of the resistance spring, a three-dimensional positioning effect of "horizontal limit (T-shaped limit column spacing adjustment) + vertical clamping (spring resistance)" is formed. During the stamping process, the workpiece will not undergo horizontal displacement or warp upward due to stamping force, effectively ensuring the stamping processing accuracy, greatly reducing the scrap rate caused by positioning deviation, and significantly improving the product qualification rate.

[0013] 3. The stamping positioning structure of this automatic stamping lathe, by placing the workpiece between the T-shaped limit post and the connecting seat, the elastic resistance of the spring can automatically adjust the clamping force according to the workpiece thickness, avoiding the squeezing damage to the workpiece surface caused by rigid clamping, and protecting the appearance and structural integrity of the workpiece while achieving stable positioning; moreover, the spring structure is simple and has a low failure rate, further improving the safety of equipment operation, user experience and maintenance convenience. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a partial sectional view of the workbench structure of this utility model; Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0016] Explanation of reference numerals in the attached drawings: 1. Machine body; 2. Support; 3. Punching head; 4. Worktable; 41. Cavity; 42. Rectangular hole; 43. Bidirectional threaded rod; 431. Moving plate; 432. Drive motor; 44. Movable column; 45. Connecting seat; 451. Limiting ring groove; 46. Support column; 47. T-slot; 48. T-post; 49. Resistance spring; 410. Dovetail block; 411. T-shaped limiting post; 412. Movable groove; 413. Dovetail groove; 5. Workpiece. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0018] Please see Figures 1-3A stamping positioning structure for an automatic stamping lathe includes a machine body 1, a bracket 2 fixedly mounted on the bottom of the machine body 1, a stamping head 3 movably mounted on the side of the machine body 1, and a worktable 4 fixedly mounted on the bracket 2 below the stamping head 3. A workpiece 5 to be stamped is placed on the worktable 4. By fixing the bracket 2 to the bottom of the machine body 1, a stable support foundation is provided for the machine body 1, effectively distributing the load generated by the machine body 1 and the stamping head 3 during operation, and preventing the machine body 1 from tilting or shifting due to uneven force. Simultaneously, fixing the worktable 4 to the bracket 2 below the stamping head 3 ensures that the workpiece 5 is accurately positioned within the stamping operation range of the stamping head 3 after placement, laying the foundation for precise positioning by the subsequent positioning structure. The spatial positioning is fundamental to reduce stamping misalignment caused by overall equipment installation deviations. A cavity 41 is formed on the worktable 4, and several rectangular holes 42 communicating with the cavity 41 are also formed on the worktable 4. A bidirectional threaded rod 43 is rotatably connected within the cavity 41. A driving component is provided on the worktable 4, which outputs rotational power to drive the bidirectional threaded rod 43 to rotate. The driving component includes a drive motor 432 fixedly mounted on the side of the worktable 4, and the output end of the drive motor 432 is fixedly connected to one end of the bidirectional threaded rod 43 via a coupling. Rolling bearings are provided at the connection points between both ends of the bidirectional threaded rod 43 and the inner wall of the cavity 41, and the inner ring of the rolling bearing is interference-fitted with the outer wall of the bidirectional threaded rod 43. The outer ring is fixedly connected to the inner wall of the cavity 41 to reduce the frictional resistance between the bidirectional threaded rod 43 and the inner wall of the cavity 41 when rotating. The cavity 41 of the worktable 4 provides a concealed installation space for the bidirectional threaded rod 43, preventing it from being exposed to the surface of the worktable 4 and interfered with by the workpiece 5 or stamping debris. The rectangular hole 42 provides a guide channel for the subsequent movement of the movable column 44, preventing radial offset when the movable column 44 moves. The drive motor 432 is directly connected to the bidirectional threaded rod 43 through a coupling, which can efficiently and losslessly transmit rotational power to the bidirectional threaded rod 43, realizing the automated drive of the bidirectional threaded rod 43. Compared with the manual drive method, this not only reduces the intensity of manual operation, but also ensures... The stability of the rotation speed and the accuracy of the rotation angle of the bidirectional threaded rod 43 provide a power guarantee for the automated adjustment of the positioning structure. The rolling bearing can convert the sliding friction between the bidirectional threaded rod 43 and the inner wall of the cavity 41 into rolling friction, significantly reducing the frictional resistance when the bidirectional threaded rod 43 rotates, reducing the wear between the bidirectional threaded rod 43 and the inner wall of the cavity 41, and extending the service life of both. At the same time, the interference fit between the inner ring of the rolling bearing and the bidirectional threaded rod 43, and the fixed connection between the outer ring and the inner wall of the cavity 41, can ensure that the bidirectional threaded rod 43 always maintains coaxiality during rotation, avoiding rotational deviation caused by radial movement of the bidirectional threaded rod 43, and further ensuring the accuracy of the subsequent movement of the moving plate 431. Two movable plates 431 are provided inside the cavity 41. The two movable plates 431 are threaded to both ends of the bidirectional threaded rod 43, and the threads at both ends of the bidirectional threaded rod 43 are in opposite directions. Several movable columns 44 are fixedly connected to the upper surfaces of the two movable plates 431, and the tops of the movable columns 44 penetrate the interior of the rectangular hole 42 and extend to the top of the worktable 4. Connecting seats 45 are fixedly connected to the tops of the movable columns 44. The design of the reverse threads at both ends of the bidirectional threaded rod 43 allows the two movable plates 431 to move synchronously towards or away from each other when the bidirectional threaded rod 43 rotates, so as to realize the synchronous adjustment of the spacing between the positioning components above the worktable 4. The section adapts to the positioning requirements of workpieces 5 of different sizes; the movable column 44 passes through the rectangular hole 42 and is fixedly connected to the connecting seat 45. On the one hand, it can transmit the linear movement of the movable plate 431 to the connecting seat 45. On the other hand, the guiding effect of the rectangular hole 42 on the movable column 44 can limit the circumferential rotation of the movable plate 431 with the bidirectional threaded rod 43, ensuring that the movable plate 431 always moves linearly along the axial direction of the bidirectional threaded rod 43, thus improving the stability of the positioning structure adjustment; a support column 46 is fixedly installed on the connecting seat 45, and a T-shaped limiting column 411 for pressing against the workpiece 5 is movably connected to the support column 46 through a connector for positioning and fixing the workpiece 5.

[0019] In this embodiment, the support column 46 is fixed on the connecting seat 45, which can provide a stable support carrier for the T-shaped limiting column 411, ensuring that the T-shaped limiting column 411 has sufficient support strength when it is pressed against the workpiece 5. The T-shaped limiting column 411 is movably connected to the support column 46 through the connector, and the pressing angle and pressing position of the T-shaped limiting column 411 can be adjusted according to the outline or positioning requirements of the workpiece 5, so that the T-shaped limiting column 411 can be tightly fitted with the surface of the workpiece 5, avoiding positioning loosening caused by the T-shaped limiting column 411 not fitting properly with the workpiece 5. At the same time, the "T"-shaped structure design of the T-shaped limiting column 411 can increase the contact area with the workpiece 5, improve the pressing stability, effectively prevent the workpiece 5 from being displaced due to force during the stamping process, and ensure the stamping processing accuracy.

[0020] Reference Figure 3As shown, the connector includes a T-slot 47 formed on the support column 46, a T-shaped column 48 slidably connected within the T-slot 47, and a resistance spring 49 also provided within the T-slot 47. The two ends of the resistance spring 49 are respectively in close contact with the bottom end of the T-shaped column 48 and the inner wall of the T-slot 47, providing a continuous elastic force towards the workpiece 5 to the T-shaped column 48, thereby enhancing the clamping force of the T-shaped limiting column 411 on the workpiece 5. The top of the T-shaped column 48 is integrally formed with a swallowtail shape. The bottom end of the tail block 410 and the T-shaped limiting post 411 is provided with a movable groove 412 that matches the shape of the support post 46. The upper surface of the T-shaped limiting post 411 is provided with a dovetail groove 413 that communicates with the movable groove 412. The width and depth of the dovetail groove 413 are matched with the width and height of the dovetail block 410. The dovetail block 410 is slidably connected in the dovetail groove 413 to restrict the T-shaped limiting post 411 to move only along the length direction of the support post 46.

[0021] In this embodiment, the connecting piece provides a stable and low-friction moving base for the T-shaped limiting post 411 through the sliding fit between the T-slot 47 and the T-shaped post 48; the elastic force continuously applied by the resisting spring 49 enables the T-shaped limiting post 411 to have a certain buffering and self-adaptive ability when contacting the workpiece 5, which can compensate for the dimensional tolerances or slight deformations of the workpiece 5 itself, and achieve a flexible clamping effect, effectively preventing indentations or damage to the surface of the precision or fragile workpiece 5; the precise fit between the dovetail block 410 and the dovetail groove 413 strictly constrains the degree of freedom of the T-shaped limiting post 411, ensuring that the direction of its clamping force is always perpendicular to the clamping surface of the workpiece 5, avoiding positioning instability or displacement of the workpiece 5 due to lateral component force, which is particularly suitable for processing scenarios that are sensitive to stamping vibration.

[0022] Reference Figure 3 As shown, the upper surface of the connecting seat 45 is provided with an annular limiting groove 451. The width of the limiting groove 451 is adapted to the thickness of the bottom end of the T-shaped limiting post 411. The bottom end of the T-shaped limiting post 411 is embedded in the limiting groove 451 and slidably connected to the limiting groove 451 to limit the movement trajectory of the T-shaped limiting post 411 and prevent the T-shaped limiting post 411 from deviating during the process of pressing against the workpiece 5. The outer wall of the workpiece 5 is movably connected between the T-shaped limiting post 411 and the connecting seat 4. The side of the T-shaped limiting post 411 near the workpiece 5 is provided with an anti-slip structure. The anti-slip structure is a uniformly distributed rhomboid protrusion with a height of 0.5-1mm, which is used to increase the static friction between the T-shaped limiting post 411 and the workpiece 5.

[0023] In this embodiment, by setting an annular limiting groove 451 and an embedded engagement with the bottom end of the T-shaped limiting post 411, a precise and stable guide track is provided for the T-shaped limiting post 411. This structure not only ensures that the T-shaped limiting post 411 can only slide along a preset annular trajectory in the horizontal plane, effectively preventing overturning or uncontrollable radial displacement that may occur when subjected to lateral pressure, but also converts the torque borne by the T-shaped limiting post 411 into pressure on the inner wall of the limiting groove 451, making the force distribution more reasonable and significantly enhancing the rigidity and impact resistance of the overall structure, thereby maintaining the long-term stability of the positioning reference during dynamic stamping. A uniform diamond-shaped raised anti-slip structure with a height of 0.5-1mm is set on the clamping surface of the T-shaped limiting post 411, realizing an optimized combination of clamping force and friction. This change in micro-geometry significantly increases the static friction coefficient of the contact surface with the workpiece on a macroscopic level, thereby obtaining a reliable anti-slip effect with a smaller normal pressure, reducing the overall clamping force required on the workpiece. It is particularly suitable for workpieces with high surface finish or soft materials, effectively avoiding the problems of over-positioning or damage to the workpiece surface. At the same time, the interlaced distribution of the diamond pattern gives it good stopping ability in multiple directions, further improving the stability and adaptability of clamping.

[0024] When in use, the equipment is prepared and the workpiece is placed: After the automatic stamping lathe is started, the machine body 1 is stably supported by the bracket 2, and the stamping head 3 is located above the worktable 4; the operator places the workpiece 5 to be stamped on the worktable 4, directly below the stamping head 3. Adjusting the positioning spacing to accommodate the workpiece width: The operator starts the drive motor 432, which drives the bidirectional threaded rod 43 to rotate within the cavity 41 of the worktable 4 via a coupling. Since the threads at both ends of the bidirectional threaded rod 43 rotate in opposite directions, the two moving plates 431 will move towards or away from each other along the axial direction of the bidirectional threaded rod 43 during rotation. The movement of the moving plates 431 is transmitted to the connecting seat 45 above the worktable 4 via the movable column 44. The movable column 44 passes through the rectangular hole 42 on the worktable 4, which guides and limits the movement trajectory of the movable column 44, ensuring the stability of the horizontal movement of the connecting seat 45. The connecting seat 45 drives the support column 46 and the T-shaped limiting column 411 to move synchronously, thereby adjusting the spacing between the two T-shaped limiting columns 411 to accommodate workpieces 5 of different widths. Workpiece clamping and thickness self-adaptation: The workpiece 5 is placed in the clamping space between the connecting seat 45 and the T-shaped limiting post 411; the T-shaped limiting post 411 is movably connected to the support post 46 through the connector; the resistance spring 49 in the connector continuously applies elastic force to the T-shaped post 48, causing the T-shaped post 48 to push the T-shaped limiting post 411 downward through the dovetail block 410, forming a stable resistance force on the upper surface of the workpiece 5; the elastic design of the resistance spring 49 allows the T-shaped limiting post 411 to automatically adjust the clamping force according to the thickness of the workpiece 5, achieving flexible clamping and avoiding damage to the workpiece surface; the bottom end of the T-shaped limiting post 411 is embedded in the limiting ring groove 451 on the connecting seat 45, restricting the T-shaped limiting post 411 to move only in the vertical direction to prevent displacement; the side of the T-shaped limiting post 411 near the workpiece 5 is provided with a diamond-shaped protrusion anti-slip structure to increase the static friction between it and the workpiece 5 and ensure clamping reliability. Stamping process: After the workpiece 5 is stably fixed, the stamping head 3 moves downward to perform stamping operation on the workpiece 5; the positioning structure ensures that the workpiece 5 will not be horizontally displaced or warped upward during the stamping process through the three-dimensional positioning effect of "horizontal limit T-shaped limit column spacing adjustment + vertical clamping spring resistance", thus ensuring processing accuracy. Workpiece release and reset: After stamping is completed, the drive motor 432 reverses, driving the bidirectional threaded rod 43 to rotate in the opposite direction, causing the two moving plates 431 to move in the opposite direction, thereby driving the T-shaped limit post 411 to release the workpiece 5 through the movable column 44 and the connecting seat 45; the operator can then take out the processed workpiece 5, and the equipment is ready for the next operation.

[0025] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A stamping positioning structure for an automatic stamping lathe, comprising a machine body (1), wherein a bracket (2) is fixedly mounted on the bottom of the machine body (1), and a stamping head (3) is movably mounted on the side of the machine body (1), characterized in that: A workbench (4) is fixedly installed on the support (2) below the stamping head (3), and a workpiece (5) to be stamped is placed on the workbench (4). The workbench (4) has a cavity (41) and a plurality of rectangular holes (42) connected to the cavity (41). A bidirectional threaded rod (43) is rotatably connected inside the cavity (41). The workbench (4) is provided with a driving component, which is used to output rotational power to drive the bidirectional threaded rod (43) to rotate. The cavity (41) is provided with two movable plates (431), which are threaded to both ends of a bidirectional threaded rod (43), and the threads at both ends of the bidirectional threaded rod (43) are opposite. Several movable columns (44) are fixedly connected to the upper surfaces of the two movable plates (431), and the tops of the movable columns (44) penetrate the interior of the rectangular hole (42) and extend to the top of the worktable (4). A connecting seat (45) is fixedly connected to the tops of the movable columns (44). A support column (46) is fixedly installed on the connecting seat (45), and a T-shaped limiting column (411) for pressing against the workpiece (5) is movably connected to the support column (46) through a connector for positioning and fixing the workpiece (5).

2. The stamping positioning structure of an automatic stamping lathe according to claim 1, characterized in that: The driving component includes a drive motor (432) fixedly installed on the side of the workbench (4), and the output end of the drive motor (432) is fixedly connected to one end of a bidirectional threaded rod (43) via a coupling.

3. The stamping positioning structure of an automatic stamping lathe according to claim 1, characterized in that: The connector includes a T-slot (47) formed on the support column (46), a T-shaped column (48) slidably connected in the T-slot (47), and a resistance spring (49) provided in the T-slot (47). The two ends of the resistance spring (49) are respectively in close contact with the bottom end of the T-shaped column (48) and the inner wall of the T-slot (47) to continuously provide elastic force to the T-shaped column (48) toward the workpiece (5) to enhance the clamping force of the T-shaped limiting column (411) on the workpiece (5); the top end of the T-shaped column (48) is integrally formed. There is a dovetail block (410), and the bottom end of the T-shaped limiting post (411) is provided with a movable groove (412) that matches the shape of the support post (46). The upper surface of the T-shaped limiting post (411) is provided with a dovetail groove (413) that communicates with the movable groove (412). The width and depth of the dovetail groove (413) are matched with the width and height of the dovetail block (410). The dovetail block (410) is slidably connected in the dovetail groove (413) to restrict the T-shaped limiting post (411) to move only along the length direction of the support post (46).

4. The stamping positioning structure of an automatic stamping lathe according to claim 1, characterized in that: Both ends of the bidirectional threaded rod (43) are provided with rolling bearings at the connection points with the inner wall of the cavity (41), and the inner ring of the rolling bearing is interference-fitted with the outer wall of the bidirectional threaded rod (43). The outer ring of the rolling bearing is fixedly connected to the inner wall of the cavity (41) to reduce the frictional resistance between the bidirectional threaded rod (43) and the inner wall of the cavity (41) when the rod rotates.

5. The stamping positioning structure of an automatic stamping lathe according to claim 3, characterized in that: The upper surface of the connecting seat (45) is provided with an annular limiting groove (451). The width of the limiting groove (451) is adapted to the thickness of the bottom end of the T-shaped limiting post (411). The bottom end of the T-shaped limiting post (411) is embedded in the interior of the limiting groove (451) and is slidably connected to the limiting groove (451) to limit the movement trajectory of the T-shaped limiting post (411) and prevent the T-shaped limiting post (411) from shifting during the process of pressing against the workpiece (5). The outer wall of the workpiece (5) is movably connected between the T-shaped limiting post (411) and the connecting seat (45).

6. The stamping positioning structure of an automatic stamping lathe according to claim 3, characterized in that: The T-shaped limiting post (411) has an anti-slip structure on the side near the workpiece (5). The anti-slip structure consists of uniformly distributed rhomboid protrusions with a height of 0.5-1mm, which is used to increase the static friction between the T-shaped limiting post (411) and the workpiece (5).

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