A stamping positioning fixture

Abstract

The present invention discloses a stamping positioning fixture, which relates to the technical field of stamping devices. The fixture includes a fixture seat, a punching positioning assembly provided on the top surface of the fixture seat, the punching positioning assembly including a roller groove provided on the top surface of the fixture seat, a positioning roller rotatably provided in the roller groove, a plurality of punching assemblies uniformly distributed along the circumference on the outer peripheral wall of the positioning roller, positioning and clamping assemblies symmetrically provided on two opposing sides of the roller groove, and bracket assemblies symmetrically provided on the other opposing sides of the roller groove, the positioning and clamping assembly including a positioning column fixedly provided on the fixture seat, an adjustment seat provided on the positioning column, a plurality of adjustment rods provided on the adjustment seat in parallel and at intervals, a limit seat movably provided on one end of the adjustment rod away from the adjustment seat, and a plurality of positioning card assemblies movably sleeved on the outer portion of the adjustment rod between the adjustment seat and the limit seat. The present invention has the advantages of being easy to adjust and suitable for positioning and clamping a variety of workpieces.

Description

Technical Field

[0001] The present invention relates to the technical field of stamping devices, and in particular to a stamping positioning fixture. Background Art

[0002] During the stamping process of the stamping device, a positioning fixture is usually used to position the workpiece. However, the problem with the positioning fixture of the existing stamping device is that the positioning fixture will encounter workpieces of different sizes and shapes in the process of clamping and positioning the workpiece, and different fixtures need to be replaced for positioning. The disassembly of the fixture is time-consuming, thereby reducing the working efficiency of the stamping device. Summary of the Invention

[0003] In view of the above-mentioned technical deficiencies, the technical problem to be solved by the present invention is to provide a stamping positioning fixture that is easy to adjust and suitable for positioning and clamping a variety of workpieces.

[0004] In order to solve the above technical problems, the present invention provides a stamping positioning fixture, including a fixture seat, a punching positioning assembly is arranged on the top surface of the fixture seat, the punching positioning assembly includes a roller groove arranged on the top surface of the fixture seat, a positioning roller is rotatably arranged in the roller groove, and a plurality of punching assemblies are evenly distributed along the circumferential direction on the outer peripheral wall of the positioning roller, and positioning and clamping assemblies are symmetrically arranged on two opposite sides of the roller groove, and bracket assemblies are symmetrically arranged on the other two opposite sides of the roller groove, and the positioning and clamping assembly includes a positioning column fixedly arranged on the fixture seat, an adjustment seat is arranged on the positioning column, and a plurality of adjusting rods are arranged on the adjustment seat in parallel and at intervals, a limit seat is movably provided on the end of the adjusting rod away from the adjusting seat, and a plurality of positioning card assemblies are movably sleeved on the outer side of the adjusting rod between the adjusting seat and the limit seat.

[0005] Preferably, the punching assembly includes a plurality of rectangular grooves uniformly distributed along the circumferential direction of the outer wall of the positioning roller, the openings of the rectangular grooves are located on the outer wall of the positioning roller, an adjustment baffle is slidably provided on the opening of the rectangular groove, and a plurality of punching holes are arranged at intervals along the length direction on the bottom surface of the rectangular groove. According to different usage needs, the workpiece to be punched can be placed in the opening of the rectangular groove, so that the workpiece at the punching position completes the punching operation; or the position to be punched is positioned toward the punching hole to complete the punching operation.

[0006] Preferably, a plurality of rotating grooves corresponding to the adjusting rods are arranged at intervals on the side wall of the adjusting seat near the end of the positioning roller, and the adjusting rods are respectively rotatably arranged in the rotating grooves at the corresponding positions, and the limit seat is movably sleeved on the outside of the end of the adjusting rod away from the rotating groove, and locking bolts corresponding to the adjusting rods are movably passed through the rotating groove, and the locking bolts are movably passed through the end of the adjusting rod away from the limit seat, and the end of the adjusting rod away from the adjusting seat is an externally threaded rod structure, and the adjusting rods on the opposite sides of the limit seat are threadedly connected with locking nuts, which is convenient for flipping the adjusting rod to use the limit seat to press and position the workpiece before stamping; or when the limit seat is not in use, flip the adjusting rod to flip the limit seat in the direction away from the positioning roller.

[0007] Preferably, the bracket assembly includes a lifting cylinder embedded in the top surface of the clamp seat, and a support plate is horizontally arranged on the piston rod of the lifting cylinder. The support plate is driven by the lifting cylinder to move up and down, and the workpiece to be stamped can be pressed and positioned by the support plate.

[0008] Preferably, the positioning card assembly includes a card plate movably sleeved on the outside of the adjusting rod between the limit seat and the adjusting seat, and the card plate is provided with an arc-shaped card groove at one end facing the top surface of the clamp seat, the arc opening of the arc-shaped card groove faces the top surface of the clamp seat, and a positioning groove is provided at the arc top of the arc-shaped card groove, and a filling plate of matching shape is movably provided in the arc opening of the arc-shaped card groove, and a positioning block adapted to the positioning groove is provided on the filling plate, and when the filling plate is located in the arc-shaped card groove, the positioning block is located in the positioning groove, and a notch is provided on the side wall of the end of the card plate away from the top surface of the clamp seat, and an externally threaded locking rod is movably provided on the end of the card plate away from the top surface of the clamp seat, and the externally threaded locking rod is movably provided, and the externally threaded locking rod is movably passed through the positioning groove and threadedly connected with the positioning block. Whether to use the positioning card assembly can be selected according to needs, and whether to install and use the filling plate can be selected according to the different external structures of the workpiece to be stamped.

[0009] Preferably, the lifting and adjusting assembly includes a guide column arranged on the top surface of the clamp seat, a lifting slot is arranged on the guide column, an adjusting cylinder is arranged at the bottom of the lifting slot, a guide shaft is coaxially arranged on the piston rod of the adjusting cylinder, the guide shaft is movably arranged in the lifting slot, and the internal thread of the guide shaft away from the adjusting cylinder is connected to the lifting shaft, the positioning column is coaxially fixedly arranged on the end of the lifting shaft away from the guide shaft, and the outside of the lifting shaft is sequentially sleeved with a limit plate and a return spring from top to bottom, the outer diameter of the limit plate is larger than the outer diameter of the guide column, and the two ends of the return spring are respectively fixedly connected to the limit plate and the guide shaft, and the adjusting seat is fixedly connected to the outer peripheral wall of the limit plate. According to the different heights of the workpiece to be stamped, the limit plate can be adjusted to different positions by adjusting the cylinder to achieve pressing of the workpiece to be stamped.

[0010] Preferably, the adjustment baffle is a fan-shaped structure, and the end of the limit seat close to the adjustment baffle is provided with an arc-shaped notch groove that is adapted to the shape and size of the adjustment baffle. The end of the adjustment baffle away from the rectangular groove is located in the arc-shaped notch groove, so that when the workpiece to be stamped is pressed by the limit seat, the adjustment baffle can be located in the arc-shaped notch groove, which is beneficial to prevent the adjustment baffle from sliding freely at the opening of the rectangular groove.

[0011] The beneficial effects of the present invention are:

[0012] 1. The present invention facilitates the realization of different operation requirements for the punching workpiece by providing the punching positioning assembly and the punching assembly, as well as the positioning and clamping assembly and the positioning card assembly. It is also easy to adjust and adapt to the positioning and clamping of the punching workpieces of different shapes and sizes.

[0013] 2. The setting of the positioning card assembly can be achieved by selecting whether to install the filling plate in the arc-shaped opening of the arc-shaped card slot, so as to achieve the positioning and clamping of workpieces to be stamped with different shapes (circular structure or flat structure), thereby improving the diversity of the stamping positioning fixture.

[0014] 3. According to the different heights of the workpiece to be stamped, the position of the positioning and clamping assembly can be adjusted by adjusting the lifting and lowering adjustment assembly, so that the limit seat can be used to clamp or press the workpiece to be stamped. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 A schematic structural diagram of a stamping positioning fixture provided in an embodiment of the present invention.

[0017] Figure 2 A schematic structural diagram of a stamping positioning fixture provided in an embodiment of the present invention.

[0018] Figure 3 A schematic structural diagram of a lifting and adjusting assembly of a stamping positioning fixture provided in an embodiment of the present invention.

[0019] Figure 4 A schematic structural diagram of a positioning card assembly of a stamping positioning fixture provided in an embodiment of the present invention.

[0020] Figure 5 A schematic diagram of the card plate structure of a stamping positioning fixture provided in an embodiment of the present invention.

[0021] Figure 6 A schematic diagram of the filling plate structure of a stamping positioning fixture provided in an embodiment of the present invention.

[0022] Explanation of the accompanying drawings: 1. Clamp seat; 2. Punching positioning assembly; 21. Roller groove; 22. Positioning roller; 3. Punching assembly; 31. Rectangular groove; 32. Adjusting baffle; 33. Punching; 4. Positioning and clamping assembly; 41. Positioning column; 42. Adjusting seat; 43. Adjusting rod; 431. Locking nut; 44. Limiting seat; 441. Arc-shaped notched groove; 45. Rotating groove; 46. Locking bolt; 5. Bracket assembly; 51. Lifting cylinder; 52. Support plate; 6. Positioning card assembly; 61. Card plate; 62. Arc-shaped card groove; 63. Positioning groove; 64. Filling plate; 641. Positioning block; 65. Notch; 66. Externally threaded locking rod; 7. Lifting and adjusting assembly; 71. Guide column; 72. Lifting groove; 73. Adjusting cylinder; 74. Guide shaft; 75. Lifting shaft; 751. Limiting plate; 752. Return spring. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example 1: Figures 1 to 3As shown, the present invention provides a stamping positioning fixture, including a fixture seat 1, a punching positioning assembly 2 is provided on the top surface of the fixture seat 1, the punching positioning assembly 2 includes a roller groove 21 provided on the top surface of the fixture seat 1, a positioning roller 22 is rotatably provided in the roller groove 21, four punching assemblies 3 are evenly distributed along the circumferential direction on the outer peripheral wall of the positioning roller 22, positioning and pressing assemblies 4 are symmetrically provided on two opposite sides of the roller groove 21, and bracket assemblies 5 are symmetrically provided on the other two opposite sides of the roller groove 21, the positioning and pressing assembly 4 includes a positioning column 41 fixedly provided on the fixture seat 1, an adjusting seat 42 is provided on the positioning column 41, and two adjusting rods 43 are provided on the adjusting seat 42 in parallel and at intervals, and the adjusting rods 43 are away from the adjusting seat A limit seat 44 is movably provided at one end of 42, and two positioning card assemblies 6 are movably sleeved on the outside of the adjusting rod 43 between the adjusting seat 42 and the limit seat 44; the punching assembly 3 includes four rectangular grooves 31 uniformly distributed along the circumferential direction of the outer peripheral wall of the positioning roller 22, the opening of the rectangular groove 31 is located on the outer peripheral wall of the positioning roller 22, and an adjusting baffle 32 is slidably provided on the opening of the rectangular groove 31, and two punching holes 33 are spaced apart along the length direction on the bottom surface of the rectangular groove 31; the adjusting baffle 32 is a fan-shaped structure, and an arc-shaped notch groove 441 that is adapted to the shape and size of the adjusting baffle 32 is provided at one end of the limit seat 44 close to the adjusting baffle 32, and the end of the adjusting baffle 32 away from the rectangular groove 31 is located in the arc-shaped notch groove 441.

[0025] You can choose whether to use the punching positioning component 2 as needed. When the punching positioning component 2 (and the punching component 3) are not needed, the punching positioning component 2 can be removed from the roller groove 21, and then the stamping die that is compatible with the workpiece to be stamped can be placed in the roller groove 21; after the workpiece to be stamped is placed on the stamping die, the bracket component 5 is started to press and fix the workpiece to be stamped (when the bottom edge of the workpiece to be stamped is concave, the bracket component 5 can also be used to abut against the concave position to improve the positioning effect of the workpiece to be stamped); at the same time, the limit seat 44 or the positioning card component 6 is used to press and fix the workpiece to be stamped (the bracket component 5 and the limit seat 44, or the bracket component 5 and the positioning card component 6 are used to press the workpiece to be stamped through positions in different directions), which improves the effect of pressing and positioning the workpiece to be stamped.

[0026] When the punching positioning assembly 2 is needed, the positioning roller 22 is installed in the roller groove 21, and the positioning roller 22 is rotated so that the punching assembly 3 at the corresponding position on the outer peripheral wall of the positioning roller 22 corresponds to the position of the stamping die, that is, the workpiece to be punched is placed at the position of the rectangular groove 31 on the outer peripheral wall of the positioning roller 22. At this time, the punching hole 33 on the bottom surface of the rectangular groove 31 corresponds to the position of the punch on the stamping die, so that the punching operation of the workpiece to be punched can be completed.

[0027] Two punching holes 33 are arranged on the bottom surface of the rectangular groove 31 at intervals along the length direction. When one of the punching holes 33 is used, the adjustment baffle 32 can be slid on the opening of the rectangular groove 31 to block the unused punching hole 33; at the same time, when the workpiece to be stamped is pressed through the limit seat 44, the adjustment baffle 32 can be located in the arc-shaped notch groove 441, which is beneficial to prevent the adjustment baffle 32 from sliding freely at the opening of the rectangular groove 31; the limiting seat 44 can also play a certain fixing role on the positioning roller 22.

[0028] It is also possible to not use the punching positioning assembly 2 and the punching assembly 3, and directly use the bracket assembly 5 and the positioning card assembly 6 to clamp and position the outer periphery of the workpiece to be punched placed on the top surface of the clamp seat 1.

[0029] Example 2: Based on Example 1, Figures 1 to 6 As shown, two rotation grooves 45 corresponding to the adjustment rods 43 are provided on the side wall of the adjustment seat 42 near the end of the positioning roller 22. The adjustment rods 43 are respectively rotatably set in the rotation grooves 45 at the corresponding positions. The limit seat 44 is movably sleeved on the outside of the end of the adjustment rod 43 away from the rotation groove 45. A locking bolt 46 corresponding to the adjustment rod 43 is movably penetrated in the rotation groove 45, and the locking bolt 46 is movably penetrated to the end of the adjustment rod 43 away from the limit seat 44. The end of the adjustment rod 43 away from the adjustment seat 42 is an external threaded rod structure, and the adjustment rods 43 on the opposite sides of the limit seat 44 are threadedly connected with locking nuts 431; the positioning card assembly 6 includes a movably sleeved outer portion of the adjustment rod 43 between the limit seat 44 and the adjustment seat 42 The card plate 61 has an arc-shaped card slot 62 at one end of the card plate 61 facing the top surface of the clamp seat 1, and the arc-shaped opening of the arc-shaped card slot 62 faces the top surface of the clamp seat 1. A positioning slot 63 is provided at the arc-shaped top of the arc-shaped card slot 62, and a filling plate 64 with a matching shape is movably provided in the arc opening of the arc-shaped card slot 62. A positioning block 641 that is adapted to the positioning slot 63 is provided on the filling plate 64, and when the filling plate 64 is located in the arc-shaped card slot 62, the positioning block 641 is located in the positioning slot 63. A notch 65 is provided on the side wall of the end of the card plate 61 away from the top surface of the clamp seat 1, and an externally threaded locking rod 66 is movably provided on the end of the card plate 61 away from the top surface of the clamp seat 1, and the externally threaded locking rod 66 is movably passed through the positioning slot 63 and threadedly connected with the positioning block 641.

[0030] The position of the clamping plate 61 can be adjusted by sliding it outside the adjusting rod 43 according to the length or width of the workpiece to be punched, so that the workpiece to be punched can be clamped by the clamping plate 61. The number of clamping plates 61 installed on the adjusting rod 43 can also be selected according to the needs of use (that is, by first loosening the locking nut 431, removing the limit seat 44, and setting the clamping plates 61 on the outside of the adjusting rod 43 one by one, and then installing the upper limit seat 44, and tightening the locking nut 431). When the clamping plate 61 is not used for a long time, the clamping plate 61 can also be removed from the adjusting rod 43. At this time, the limit seat 44 can be used to position, clamp or press the workpiece to be punched (that is, the bottom surface of the limit seat 44 can be pressed against the workpiece to be punched). The top of the workpiece to be stamped is positioned and fixed; or the workpiece to be stamped is positioned and clamped on the side wall of the workpiece to be stamped by using the side of the limit seat 44 to clamp the workpiece to be stamped); it is also possible to adjust the position of the limit seat 44 on the adjusting rod 43 according to the shape of the workpiece to be stamped, and then use the locking nut 431 to clamp the limit seat 44; when the clamping plate 61 is not used for a short time, the locking bolt 46 can also be loosened to disengage the locking bolt 46 from the adjusting rod 43. Since the adjusting rod 43 (the end of the adjusting rod 43 away from the limit seat 44) is rotatably set in the rotating groove 45 at the corresponding position, the adjusting rod 43 can be flipped in the direction away from the top surface of the clamp seat 1.

[0031] It can also be based on the different shapes of the workpiece to be punched (circular structure or planar structure). When the shape of the workpiece to be punched is a circular structure, the external threaded locking rod 66 can be loosened to remove the filling plate 64 from the arc opening of the arc slot 62, and the arc slot 62 can be clamped on the outside of the workpiece to be punched, so that the arc opening of the arc slot 62 conflicts with the outer peripheral wall of the workpiece to be punched, which is beneficial to improve the positioning and clamping effect of the workpiece to be punched; when the shape of the workpiece to be punched is a planar structure, the filling plate 64 can be installed in the arc opening of the arc slot 62 through the external threaded locking rod 66 (the positioning block 641 is inserted into the positioning slot 63), and the workpiece to be punched can be positioned and clamped through the flat end of the filling plate 64.

[0032] The bracket assembly 5 includes a lifting cylinder 51 embedded in the top surface of the clamp seat 1, and a support plate 52 is horizontally arranged on the piston rod of the lifting cylinder 51. At the same time, the bracket assembly 5 can be used to improve the positioning and clamping effect of the workpiece to be stamped. The lifting cylinder 51 drives the support plate 52 to be raised and lowered, and the support plate 52 can be pressed against the top surface of the workpiece to be stamped or the side wall of the support plate 52 can be abutted against the side wall of the workpiece to be stamped, thereby achieving the clamping and positioning of the workpiece to be stamped.

[0033] Example 3: Based on Example 1, Figures 1 to 3As shown, the lifting and lowering adjustment component 7 includes a guide column 71 arranged on the top surface of the clamp seat 1, a lifting groove 72 is provided on the guide column 71, and an adjusting cylinder 73 is provided at the bottom of the lifting groove 72. A coaxial guide shaft 74 is provided on the piston rod of the adjusting cylinder 73. The guide shaft 74 is movably arranged in the lifting groove 72, and the end of the guide shaft 74 away from the adjusting cylinder 73 is internally threadedly connected to the lifting shaft 75, and the positioning column 41 is coaxially fixedly arranged on the end of the lifting shaft 75 away from the guide shaft 74. The outside of the lifting shaft 75 is sequentially sleeved with a limit plate 751 and a return spring 752 from top to bottom. The outer diameter of the limit plate 751 is larger than the outer diameter of the guide column 71, and the two ends of the return spring 752 are fixedly connected to the limit plate 751 and the guide shaft 74 respectively, and the adjusting seat 42 is fixedly connected to the outer peripheral wall of the limit plate 751.

[0034] According to the height of the workpiece to be stamped, the adjusting cylinder 73 can be started to drive the guide shaft 74, the lifting shaft 75 and the limit plate 751 to move up and down, so that the adjusting seat 42 connected to the limit plate 751 can be moved up and down synchronously, and the workpiece to be stamped can be pressed through the limit seat 44 (or when the positioning card assembly 6 is installed on the adjusting rod 43, the workpiece to be stamped can be pressed through the positioning card assembly 6).

[0035] When the regulating cylinder 73 drives the guide shaft 74, the lifting shaft 75 and the limit plate 751 to retract, and makes the limit plate 751 and the guide post 71 conflict, the height of the workpiece to be stamped that can be clamped is the minimum; when the regulating cylinder 73 drives the guide shaft 74, the lifting shaft 75 and the limit plate 751 to extend, there is a gap between the limit plate 751 and the guide post 71 (such as Figure 3 As shown in the state), it can be adjusted according to the height of the workpiece to be punched, and thus can be adapted to clamp and position workpieces to be punched of different heights.

[0036] The length of the lifting shaft 75 can also be adjusted by rotating inside the end of the guide shaft 74 away from the adjusting cylinder 73 (cooperating with the telescopic stroke of the adjusting cylinder 73) to better adapt to the clamping and positioning of workpieces to be stamped at different heights (the return spring 752 can play a certain anti-loosening role); the position of the limit plate 751 and the adjusting seat 42 can also be adjusted by rotating the lifting shaft 75 so that they can be pressed at different positions on the top surface of the workpiece to be stamped as needed, thereby improving applicability.

[0037] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A stamping positioning fixture, characterized in that: The invention comprises a fixture seat (1), a punching positioning assembly (2) is provided on the top surface of the fixture seat (1), the punching positioning assembly (2) comprises a roller groove (21) provided on the top surface of the fixture seat (1), a positioning roller (22) is rotatably provided in the roller groove (21), a plurality of punching assemblies (3) are uniformly distributed along the circumferential direction on the outer peripheral wall of the positioning roller (22), positioning and pressing assemblies (4) are symmetrically provided on two opposite sides of the roller groove (21), bracket assemblies (5) are symmetrically provided on the other two opposite sides of the roller groove (21), the positioning and pressing assembly (4) comprises a positioning column (41) fixedly provided on the fixture seat (1), an adjusting seat (42) is provided on the positioning column (41), and the adjusting seat (42) is provided on the adjusting seat (42). ) are provided with a plurality of adjusting rods (43) at intervals in parallel, and a limiting seat (44) is movably provided on one end of the adjusting rod (43) away from the adjusting seat (42), and a plurality of positioning card components (6) are movably sleeved on the outside of the adjusting rod (43) between the adjusting seat (42) and the limiting seat (44); a plurality of rotating grooves (45) corresponding to the adjusting rods (43) are arranged on the side wall of the adjusting seat (42) near the end of the positioning roller (22), and the adjusting rods (43) are respectively rotatably arranged in the rotating grooves (45) at the corresponding positions, and the limiting seat (44) is movably sleeved on the outside of one end of the adjusting rod (43) away from the rotating groove (45), and a plurality of positioning card components (6) corresponding to the adjusting rods (43) are movably sleeved on the rotating groove (45). A corresponding locking bolt (46), and the locking bolt (46) is respectively movable and penetrates to one end of the adjusting rod (43) away from the limiting seat (44), the end of the adjusting rod (43) away from the adjusting seat (42) is an external threaded rod structure, and the adjusting rods (43) on opposite sides of the limiting seat (44) are threadedly connected with locking nuts (431); the positioning card assembly (6) includes a card plate (61) that is movably sleeved on the outside of the adjusting rod (43) between the limiting seat (44) and the adjusting seat (42), and an arc-shaped card groove (62) is provided at one end of the card plate (61) facing the top surface of the clamp seat (1), the arc-shaped opening of the arc-shaped card groove (62) faces the top surface of the clamp seat (1), and the arc-shaped top of the arc-shaped card groove (62) is A positioning groove (63) is provided, and a filling plate (64) of a matching shape is movably provided in the arc opening of the arc-shaped card slot (62). A positioning block (641) adapted to the positioning groove (63) is provided on the filling plate (64), and when the filling plate (64) is located in the arc-shaped card slot (62), the positioning block (641) is located in the positioning groove (63). A notch (65) is provided on the side wall of the end of the card plate (61) away from the top surface of the clamp seat (1). An external thread locking rod (66) is also movably provided on the end of the card plate (61) away from the top surface of the clamp seat (1). The external thread locking rod (66) is movably passed through the notch (65) and the positioning groove (63) in turn, and is threadedly connected to the positioning block (641).

2. A stamping positioning fixture according to claim 1, characterized in that: The punching assembly (3) comprises a plurality of rectangular grooves (31) uniformly distributed along the circumferential direction of the outer peripheral wall of the positioning roller (22), the openings of the rectangular grooves (31) are located on the outer peripheral wall of the positioning roller (22), an adjusting baffle (32) is slidably provided on the opening of the rectangular groove (31), and a plurality of punching holes (33) are spaced apart along the length direction on the bottom surface of the rectangular groove (31).

3. A stamping positioning fixture according to claim 1, characterized in that: The bracket assembly (5) comprises a lifting cylinder (51) embedded in the top surface of the clamp seat (1), and a supporting plate (52) is horizontally arranged on the piston rod of the lifting cylinder (51).

4. A stamping positioning fixture according to claim 1, characterized in that: The lifting and adjusting assembly (7) includes a guide column (71) arranged on the top surface of the clamp seat (1), a lifting groove (72) is arranged on the guide column (71), an adjusting cylinder (73) is arranged at the bottom of the lifting groove (72), a guide shaft (74) is coaxially arranged on the piston rod of the adjusting cylinder (73), the guide shaft (74) is movably arranged in the lifting groove (72), and the lifting shaft (75) is connected to the inner thread of the guide shaft (74) away from the adjusting cylinder (73). The positioning column (41) is coaxially fixedly arranged at one end of the lifting shaft (75) away from the guide shaft (74), and the outside of the lifting shaft (75) is sequentially sleeved with a limit plate (751) and a return spring (752) from top to bottom. The outer diameter of the limit plate (751) is larger than the outer diameter of the guide column (71), and the two ends of the return spring (752) are respectively fixedly connected to the limit plate (751) and the guide shaft (74), and the adjustment seat (42) is fixedly connected to the outer peripheral wall of the limit plate (751).

5. A stamping positioning fixture as claimed in claim 2, characterized in that: The regulating baffle (32) is a fan-shaped structure. An arc-shaped notch groove (441) having a shape and size that matches that of the regulating baffle (32) is provided at one end of the limiting seat (44) close to the regulating baffle (32). An end of the regulating baffle (32) away from the rectangular groove (31) is located in the arc-shaped notch groove (441).

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