A sawing device for hardware production with precise sawing length adjustment

Abstract

The present application relates to hardware sawing technology field, specifically, it relates to a kind of sawing length accurate adjustment's sawing device for hardware production, it includes sawing rack, the top of the sawing rack is provided with sawing mechanism, the top of the sawing rack is fixed with shell, further include: workpiece feeding device, including first runner, the first runner is opened with the middle part of sawing rack, the top of the sawing rack is fixed with guide frame, one side of the sawing rack is fixed with driving motor, the output shaft of the driving motor is fixed with lead screw, the lead screw is connected with lead screw nut seat thread, the synchronous movement of scale and movable plate is controlled by threaded rod, the distance between baffle and movable plate is changed, after adjusting hardware and sawing mechanism saw blade flush by using end extrusion plate, the moving distance between baffle and movable plate at this time is the length of hardware sawing, only need to observe the position of pointer and scale to set sawing length, visual error does not occur to cause steel clamping deviation, accurate sawing operation is realized.

Description

Technical Field

[0001] This invention relates to the field of hardware sawing technology, and more specifically, to a sawing device for the production of hardware parts with precise adjustment of sawing length. Background Technology

[0002] A search revealed a hardware accessories cutting device disclosed in CN118682192B, comprising a support plate, a housing fixedly mounted on the top of the support plate, a motor fixedly mounted on one side of the housing, a rotating shaft fixedly mounted on the output shaft of the motor, a cutting unit at one end of the rotating shaft for measuring and cutting hardware steel, serving as an adjustable cutting distance unit, and an auxiliary cutting unit at the other end of the rotating shaft. By rotating the adjusting handle, the inner sliding plate at one end of the adjusting handle pushes the adjusting cylinder to move and slide on the rotating shaft. While the adjusting cylinder moves, the abutment on the adjusting cylinder pushes the measuring scale to slide on the sliding rod. Simultaneously, the pointer at one end of the measuring scale begins to slide on the measuring plate. When the pointer at one end of the measuring scale points to a certain position, this position is the required cutting size. By adjusting the cutting distance while measuring the steel, the cutting efficiency can be greatly improved, facilitating processing.

[0003] The aforementioned patent allows users to set the cutting size by adjusting the pointer of a measuring scale as it slides on a measuring plate. However, after setting the cutting size, the clamping position of the steel still needs to be adjusted according to the pointer's position. In actual operation, this method of manually adjusting the clamping position of the steel based on the pointer's position has obvious shortcomings. Because there is no intuitive linkage between the pointer and the clamping position, the operator needs to repeatedly compare the scale of the measuring plate with the position of the steel. This not only consumes a lot of time, but also easily causes the steel clamping to shift due to visual errors, resulting in a deviation between the final cutting size and the preset value, affecting product consistency.

[0004] Based on this, the present invention discloses a sawing device for hardware production with precise adjustment of sawing length. Summary of the Invention

[0005] To address the problem of deviation between the cutting dimensions and preset dimensions of hardware parts mentioned in the background art, this invention provides a sawing device for hardware production with precise adjustment of sawing length. The device includes a sawing table, a sawing mechanism on the top of the sawing table, a housing fixed to the top of the sawing table, and a workpiece feeding device including a first slide groove. The first slide groove is located in the middle of the sawing table. A guide frame is fixed to the top of the sawing table. A drive motor is fixed to one side of the sawing table. A lead screw is fixed to the output shaft of the drive motor. The lead screw is threadedly connected to a lead screw nut seat. A lead screw nut seat is slidably connected inside the first slide groove. Before sawing, the hardware needs to be clamped by a positioning structure. After clamping, the hardware needs to be moved to the sawing device by a drive device for cutting. The positioning structure adopted in this technical solution includes a fixed base, which is fixed to the top of the lead screw nut seat and is slidably connected to the guide frame. Both sides of the fixed base are fitted with a first fixed shaft. One end of the first fixed shaft is fixed with a clamping block. The outer surface of the first fixed shaft is fitted with a first spring, which elastically supports the clamping block and the fixed base. The top of the fixed base is used to place the hardware, and the two sets of clamping blocks are in contact with the hardware. Based on this, since the position of the hardware needs to be controlled and measured when positioning the hardware, the clamping position of the hardware needs to be adjusted. In the existing technology, the positioning position of the hardware needs to be controlled by measuring tools, which is cumbersome when loading the material. Therefore, the clamping position needs to be automatically adjusted when positioning the hardware. As a further improvement to this technical solution, the shifting component includes a second slide groove and a fixed plate. The second slide groove is located at the top of the sawing table. A second fixed shaft is fixed inside the second slide groove. A second spring and an end pressing plate are sleeved on the outer surface of the second fixed shaft. A round block is fixed at the bottom end of the end pressing plate. The fixed plate is fixed to the outside of the lead screw nut seat. The fixed plate is trapezoidal. The inclined side of the fixed plate is in pressing contact with the round block. The second spring is elastically supported between the end pressing plate and the second slide groove. The end pressing plate is in pressing contact with the end of the hardware. Since the fixed plate is trapezoidal, and through the cooperation between the fixed plate and the round block, when the fixed plate presses the round block, it will drive the end pressing plate to move along the outer surface of the second fixed shaft, thereby driving the end pressing plate to push one end of the hardware to a position flush with the saw blade of the sawing mechanism. When the hardware moves to the position of the end extrusion plate, the end extrusion plate is used to control the movement position of the hardware end. The traditional method requires adjusting the position of the hardware before loading. In order to facilitate loading, the end extrusion plate is used to automatically control the position of the hardware after loading. In another solution, since the end pressing plate only controls the movement of the end of the hardware to the position of the saw blade of the sawing mechanism, and since the position of the hardware is not fixed, it is impossible to set the sawing size according to the moving distance of the end pressing plate. As a further improvement to this technical solution, the adjusting component includes a third slide groove, which is located at one end of the guide frame. A threaded rod is rotatably connected inside the third slide groove, and a displacement block is slidably connected inside the third slide groove. A pointer is fixed to the outside of the displacement block. A scale is provided at one end of the guide frame, with the top of the pointer corresponding to the scale position. A third fixed shaft is fixed to one side of the guide frame, and a movable plate is slidably connected to the outer surface of the third fixed shaft. The outer surface of the threaded rod is threadedly connected to the displacement block and the movable plate. Because the rotation of the threaded rod causes the displacement block to slide along the inner side of the third slide groove, the pointer can be moved via the displacement block, and the movement can be observed through the scale. The distance, simultaneously through the cooperation between the threaded rod and the movable plate, will drive the movable plate to move synchronously along the outer surface of the third fixed axis, so that the distance the movable plate moves is the same as the distance the scale moves. The inside of the fixed material seat is provided with a fourth sliding groove, and a movable part is slidably connected inside the fourth sliding groove. A cylinder is fixed inside the fixed material seat, and a third spring is sleeved on the inner side of the cylinder. The cylinder is slidably connected to the movable part, and the third spring is elastically supported between the cylinder and the movable part. A long shaft is fixed on the inner wall of the shell, and a push plate and a fourth spring are sleeved on the outer surface of the long shaft. The fourth spring is elastically supported between the shell and the push plate. The movable part is in pressing contact with the push plate. When the movable part presses against the push plate... Because the elastic force of the fourth spring is greater than that of the third spring, the push plate will cause the movable part to compress the third spring. Simultaneously, because one side of the movable plate blocks the baffle, when the movable part can no longer compress, it will push the push plate along the outer surface of the long axis. When the push plate is pushed open, the fixed seat will continuously drive the hardware to the position of the sawing mechanism for sawing. The movable part has a slot inside, and a round shaft is fixed inside the slot. Two sets of grippers are fitted on the outer surface of the round shaft. A movable frame is hinged to the bottom of each set of grippers. A connecting piece is hinged between the two sets of movable frames. A first strong magnet is fixed to the bottom of the connecting piece. A baffle is fixed to the bottom of the movable part, and an iron block is fixed to one side of the baffle. The saw... A second strong magnet is fixed to the top of the cutting table. Since the magnetic poles of the first and second strong magnets are opposite, when the first strong magnet moves above the second strong magnet, the second strong magnet will attract the third spring. The first strong magnet will then drive the connecting piece to apply a pulling force to the movable frame, causing the two sets of grippers to move towards each other along the outer surface of the circular shaft and clamp the hardware. When the movable piece and the push plate are squeezed, the hardware will be moved by the movable piece until the baffle is blocked by the movable plate. The distance the baffle moves to the movable plate is affected by the position of the movable plate. Therefore, the cutting size of the hardware can be controlled by adjusting the position of the movable plate, and the cutting size can be easily controlled by the scale.

[0006] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this sawing device for hardware production with precise adjustment of sawing length, the scale and movable plate are moved synchronously by the threaded rod to change the distance between the baffle and the movable plate. After the hardware is aligned with the saw blade of the sawing mechanism by the end pressing plate, the moving distance between the baffle and the movable plate is the sawing length of the hardware. The sawing length can be set by simply observing the position of the pointer and the scale. There will be no visual error that causes the steel clamping to shift, thus achieving precise sawing operation.

[0007] 2. In this sawing device for hardware production with precise adjustment of sawing length, it is only necessary that one end of the hardware is located between the end extrusion plate and the cylindrical saw blade when the hardware is placed, without the need to carefully adjust the position of the hardware, thus achieving easy material loading.

[0008] 3. In this sawing device for hardware production with precise adjustment of sawing length, since the magnetic poles of the second strong magnet and the first strong magnet are opposite, the second strong magnet will generate an attraction force on the first strong magnet, so that the first strong magnet can drive the connecting piece to apply a pulling force to the movable frame, thereby driving the two sets of grippers to move towards each other along the outer surface of the round shaft, and thus clamping the hardware through the grippers to achieve stable sawing operation. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the outer casing of the present invention after disassembly; Figure 3 This is a schematic cross-sectional view of the side of the present invention; Figure 4 This is a schematic diagram of the disassembly structure of the guide frame of the present invention; Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A; Figure 6 This is a schematic diagram of the bottom structure of the present invention; Figure 7 This is a partial cross-sectional view of the side of the guide frame of the present invention; Figure 8 This is a cross-sectional view of the top of the present invention; Figure 9 For the present invention Figure 8 Enlarged structural diagram at point B; Figure 10 This is a partial cross-sectional view of the top of the solid material holder of the present invention.

[0010] The meanings of the labels in the diagram are as follows: 1. Sawing table; 2. First slide rail; 3. Guide frame; 4. Drive motor; 5. Lead screw; 6. Lead screw nut seat; 7. Material holder; 8. First fixed shaft; 9. Clamping block; 10. First spring; 11. Fixing plate; 12. Second slide rail; 13. Second fixed shaft; 14. Second spring; 15. End pressing plate; 16. Round block; 17. Third slide rail; 18. Threaded rod; 19. Displacement block; 20. Pointer; 21. 21. Scale; 22. Third fixed shaft; 23. Movable plate; 24. Fourth slide groove; 25. Movable part; 26. Cylinder; 27. Third spring; 28. Housing; 29. ​​Long shaft; 30. Push plate; 31. Fourth spring; 32. Groove; 33. Round shaft; 34. Gripper; 35. Movable frame; 36. Sawing mechanism; 37. First strong magnet; 38. Baffle; 39. Iron block; 40. Second strong magnet; 41. Connector. Detailed Implementation

[0011] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0012] The existing cutting dimensions for hardware parts deviate from the preset dimensions.

[0013] Therefore, this invention provides a sawing device for hardware manufacturing with precise adjustment of sawing length, see [reference]. Figure 1-10 As shown, it includes a sawing table 1, a sawing mechanism 36 is provided on the top of the sawing table 1, a housing 28 is fixed to the top of the sawing table 1, and also includes: The workpiece feeding device is set on the sawing table 1 and is used to feed the hardware parts. The workpiece feeding device includes a positioning structure and a shifting component for positioning and adjusting the position of the hardware parts. The cutting adjustment assembly, which is set on the workpiece feeding device, is used to adjust the cutting position of the hardware parts; The workpiece feeding device includes a first slide 2, which is opened in the middle of the sawing table 1. A guide frame 3 is fixed on the top of the sawing table 1, and a drive motor 4 is fixed on one side of the sawing table 1. A lead screw 5 is fixed on the output shaft of the drive motor 4, and a lead screw nut seat 6 is slidably connected inside the first slide 2. The positioning structure includes a fixing seat 7, which is fixed to the top of the lead screw nut seat 6. A first fixing shaft 8 is sleeved on both sides of the fixing seat 7. A clamping block 9 is fixed to one end of the first fixing shaft 8. A first spring 10 is sleeved on the outer surface of the first fixing shaft 8. The displacement component includes a second slide 12 and a fixing plate 11. The second slide 12 is located at the top of the sawing table 1. A second fixing shaft 13 is fixed inside the second slide 12. A second spring 14 and an end pressing plate 15 are sleeved on the outer surface of the second fixing shaft 13. A round block 16 is fixed at the bottom end of the end pressing plate 15. The fixing plate 11 is fixed to the outside of the lead screw nut seat 6.

[0014] During operation, the hardware is placed on the fixed base 7. At this time, the elastic force of the first spring 10 will drive the clamping block 9 to squeeze the hardware and perform initial positioning of the hardware. At the same time, the operation of the drive motor 4 will control the rotation of the lead screw 5, so that the lead screw nut seat 6 can drive the lead screw nut seat 6 along the inner side of the first slide groove 2, so that it can drive the hardware to move through the positioning structure. At the same time, through the cooperation between the fixed plate 11 and the round block 16, the end pressing plate 15 will move along the outer surface of the second fixed shaft 13. At this time, the end pressing plate 15 will squeeze one end of the hardware, thereby adjusting the initial position of the end of the hardware. Therefore, it has a high fault tolerance when placing hardware and is easy to load.

[0015] Among them, see Figure 2 , 4 As shown in Figures 5, 7, and 10, the adjusting and cutting assembly includes a third slide groove 17, which is located at one end of the guide frame 3. A threaded rod 18 is rotatably connected inside the third slide groove 17, and a displacement block 19 is slidably connected inside the third slide groove 17. A pointer 20 is fixed to the outside of the displacement block 19. A third fixed shaft 22 is fixed to one side of the guide frame 3, and a movable plate 23 is slidably connected to the outer surface of the third fixed shaft 22. A fourth slide groove 24 is provided inside the material holder 7, and a movable part 25 is slidably connected inside the fourth slide groove 24. A cylinder 26 is fixed inside the material holder 7, and a first... Three springs 27, a long shaft 29 is fixed to the inner wall of the housing 28, a push plate 30 and a fourth spring 31 are sleeved on the outer surface of the long shaft 29, a slot 32 is opened inside the movable part 25, a round shaft 33 is fixed inside the slot 32, two sets of grippers 34 are sleeved on the outer surface of the round shaft 33, a movable frame 35 is hinged to the bottom end of each set of grippers 34, a connector 41 is hinged between the two sets of movable frames 35, a first strong magnet 37 is fixed to the bottom of the connector 41, a baffle 38 is fixed to the bottom end of the movable part 25, an iron block 39 is fixed to one side of the baffle 38, and a second strong magnet 40 is fixed to the top of the sawing table 1.

[0016] During operation, the rotation of the threaded rod 18 will cause the displacement block 19 to move along the inner side of the third slide groove 17, thereby causing the pointer 20 to move. The movement distance of the pointer 20 can be observed through the scale 21. Through the cooperation between the threaded rod 18 and the movable plate 23, the movable plate 23 will move along the outer surface of the third fixed shaft 22. Therefore, the movement distance of the pointer 20 is equal to the distance between the movable plate 23 and the baffle 38. Since the displacement component adjusts the end of the hardware to a position flush with the saw blade of the sawing mechanism 36, the movement distance of the fourth slide groove 24 driven by the movable component 25 and the gripper 34 is the length of the hardware being sawn.

[0017] Among them, see Figure 3 As shown, the lead screw 5 is threadedly connected to the lead screw nut seat 6, and the fixed material seat 7 is slidably connected to the guide frame 3.

[0018] During operation, the rotation of the lead screw 5 will cause the lead screw nut seat 6 to move along the inner side of the first slide groove 2, thereby causing the fixed material seat 7 to slide along the inner side of the guide frame 3, so as to move the hardware parts.

[0019] Among them, see Figure 7 , 9 As shown, the first spring 10 is elastically supported between the clamping block 9 and the fixing seat 7. The top of the fixing seat 7 is used to place the hardware, and the two sets of clamping blocks 9 are in contact with the hardware.

[0020] During operation, the hardware is placed inside the fixed base 7. At this time, the elastic force of the first spring 10 will push the clamping block 9 to move, so that the hardware can be clamped by the two sets of clamping blocks 9. It only performs initial clamping on the hardware. When it is squeezed by the end extrusion plate 15, it will drive the hardware to move along the inner side of the two sets of clamping blocks 9.

[0021] Among them, see Figure 4 , 6 As shown, the fixing plate 11 is trapezoidal, and the inclined side of the fixing plate 11 is in contact with the circular block 16. The second spring 14 is elastically supported between the end pressing plate 15 and the second slide groove 12.

[0022] During operation, the movement of the fixed plate 11 causes its inclined edge to press against the round block 16, thereby driving the end pressing plate 15 to move along the inner side of the second fixed shaft 13. At the same time, through the elastic force of the second spring 14, when the fixed plate 11 separates from the round block 16, the end pressing plate 15 will be driven to reset.

[0023] Among them, see Figure 8As shown, one end of the hardware is located between the end pressing plate 15 and the saw blade of the sawing mechanism 36. The end pressing plate 15 presses against the end of the hardware. After the end pressing plate 15 presses against one end of the hardware, the end of the hardware is flush with the saw blade of the sawing mechanism 36.

[0024] During operation, it is only necessary that one end of the hardware is positioned between the end pressing plate 15 and the saw blade of the cylinder 26 when the hardware is placed (e.g., Figure 8 (As shown by the arrow) There is no need to carefully adjust the position of the hardware, making it more convenient to load materials onto it.

[0025] Among them, see Figure 5 , 8 As shown in Figure 10, the outer surface of the threaded rod 18 is threadedly connected to the displacement block 19 and the movable plate 23. The fourth spring 31 is elastically supported between the housing 28 and the push plate 30. The elastic force of the fourth spring 31 is greater than that of the third spring 27. The movable part 25 is pressed against the push plate 30. When the movable part 25 presses against the push plate 30, one side of the movable plate 23 blocks the baffle 38.

[0026] During operation, the movement of the movable part 25 will cause the push plate 30 to squeeze the movable part 25, which can drive the movable part 25 to slide along the inner side of the fourth slide groove 24. In turn, the hardware can be moved by the gripper 34. When the movable part 25 moves, it will be blocked by the movable plate 23, so as to accurately control the sawing size.

[0027] Among them, see Figure 5 As shown, one end of the guide frame 3 is provided with a scale 21, and the top of the pointer 20 corresponds to the position of the scale 21.

[0028] During operation, the scale 21 set at one end of the guide frame 3 allows the distance the pointer 20 moves to be observed through the scale 21. Only the position of the pointer 20 needs to be adjusted to control the size of the hardware cutting. There is no need to precisely control the position of the hardware, and visual errors will not cause the steel clamping to shift, resulting in more precise cutting.

[0029] Among them, see Figure 10 As shown, the cylinder 26 is slidably connected to the movable part 25, and the third spring 27 is elastically supported between the cylinder 26 and the movable part 25.

[0030] During operation, the elastic force of the third spring 27 will push the movable part 25 to slide along the inner side of the fourth slide groove 24, so that when the push plate 30 separates from the movable part 25, the movable part 25 can be driven to reset.

[0031] Among them, see Figure 2 , 7As shown, the magnetic poles of the first strong magnet 37 and the second strong magnet 40 are opposite. The attraction force generated by the second strong magnet 40 on the first strong magnet 37 is greater than the attraction force between the third spring 27 and the iron block 39. When the second strong magnet 40 attracts the first strong magnet 37, the gripper 34 clamps the hardware.

[0032] During operation, since the magnetic poles of the second strong magnet 40 and the first strong magnet 37 are opposite, the second strong magnet 40 will generate an attractive force on the first strong magnet 37, which will drive the connector 41 to apply a pulling force to the movable frame 35 through the first strong magnet 37. This will drive the two sets of grippers 34 to move towards each other along the outer surface of the round shaft 33, thereby clamping the hardware parts through the grippers 34, making the sawing of hardware parts more stable.

[0033] In summary, this effectively solves the existing problem of deviation between the cutting dimensions of hardware parts and the preset dimensions.

[0034] Working principle: First, based on the required sawing length of the object, rotate the threaded rod 18 and observe the scale 21 to adjust the pointer 20 to move the corresponding distance. Then, place the hardware inside the fixed base 7, with one end of the hardware positioned between the end pressing plate 15 and the saw blade of the cylinder 26. At this time, the elastic force of the first spring 10 will push the clamping block 9 to move, thus allowing the hardware to be initially clamped by the two sets of clamping blocks 9. Simultaneously, the operation of the drive motor 4 will control the rotation of the lead screw 5, which will drive the lead screw nut seat 6 along the inner side of the first slide groove 2, causing it to move the hardware through the positioning structure. At the same time, through the cooperation between the fixed plate 11 and the round block 16, the end pressing plate 15 will move along the outer surface of the second fixed shaft 13. At this time, the end pressing plate 15 will press one end of the hardware, thereby adjusting the hardware. When the first strong magnet 37 moves above the second strong magnet 40, the second strong magnet 40 will generate an attraction force on the first strong magnet 37 because the magnetic poles of the second strong magnet 40 and the first strong magnet 37 are opposite. This allows the first strong magnet 37 to drive the connecting piece 41 to apply a pulling force to the movable frame 35, thereby driving the two sets of grippers 34 to move towards each other along the outer surface of the round shaft 33. The grippers 34 can then hold the hardware. After that, the movable piece 25 will be squeezed against the push plate 30, thereby driving the movable piece 25 to slide along the inner side of the fourth slide groove 24 until the baffle 38 is blocked by the movable plate 23. At this time, the distance that the end of the hardware moves is the same as the preset distance. As the fixed base 7 moves, the hardware will be sawed by the sawing mechanism 36.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sawing device for hardware production with precise adjustment of sawing length, comprising a sawing table (1), wherein a sawing mechanism (36) is provided on the top of the sawing table (1), characterized in that, Also includes: The workpiece feeding device is set on the sawing table (1). The workpiece feeding device includes a positioning structure and a shifting component for positioning and adjusting the position of the hardware. The positioning structure is moved by the workpiece feeding device; The cutting adjustment component, located on the workpiece feeding device, is used to adjust the position of the hardware parts being cut. The workpiece feeding device includes a first slide groove (2) opened in the middle of the sawing table (1), a guide frame (3) is fixed on the top of the sawing table (1), and a drive motor (4) is fixed on one side of the sawing table (1). A lead screw (5) is fixed on the output shaft of the drive motor (4), and a lead screw nut seat (6) is slidably connected inside the first slide groove (2). The displacement component includes a second slide (12) and a fixing plate (11) located on the top of the sawing table (1). A second fixing shaft (13) is fixed inside the second slide (12). A second spring (14) and an end pressing plate (15) are sleeved on the outer surface of the second fixing shaft (13). A round block (16) is fixed at the bottom end of the end pressing plate (15). The fixing plate (11) is fixed to the outside of the lead screw nut seat (6).

2. The sawing device for hardware production with precise adjustment of sawing length according to claim 1, characterized in that: The top of the sawing frame (1) is fixed with a housing (28). The positioning structure includes a material holder (7), which is fixed to the top of the lead screw nut seat (6). A first fixed shaft (8) is sleeved on both sides of the material holder (7). A clamping block (9) is fixed at one end of the first fixed shaft (8). A first spring (10) is sleeved on the outer surface of the first fixed shaft (8). The cutting adjustment assembly includes a third slide groove (17), which is opened at one end of the guide frame (3). A threaded rod (18) is rotatably connected inside the third slide groove (17). A displacement block (19) is slidably connected inside the third slide groove (17). A pointer (20) is fixed on the outside of the displacement block (19). A third fixed shaft (22) is fixed on one side of the guide frame (3). A movable plate (23) is slidably connected on the outer surface of the third fixed shaft (22). A fourth slide groove (24) is opened inside the material holder (7). The four sliding grooves (24) are internally connected to a movable part (25). A cylinder (26) is fixed inside the fixed base (7). A third spring (27) is sleeved on the inner side of the cylinder (26). A long shaft (29) is fixed to the inner wall of the housing (28). A push plate (30) and a fourth spring (31) are sleeved on the outer surface of the long shaft (29). A slot (32) is opened inside the movable part (25). A round shaft (33) is fixed inside the slot (32). Two sets of grippers (34) are fitted on the outer surface of the circular shaft (33). Each set of grippers (34) is hinged to a movable frame (35) at the bottom end. A connector (41) is hinged between the two sets of movable frames (35). A first strong magnet (37) is fixed at the bottom of the connector (41). A baffle (38) is fixed at the bottom end of the movable part (25). An iron block (39) is fixed on one side of the baffle (38). A second strong magnet (40) is fixed at the top of the sawing table (1).

3. The sawing device for hardware production with precise adjustment of sawing length according to claim 2, characterized in that: The lead screw (5) is threadedly connected to the lead screw nut seat (6), and the fixed material seat (7) is slidably connected to the guide frame (3).

4. The sawing device for hardware production with precise adjustment of sawing length according to claim 2, characterized in that: The first spring (10) is elastically supported between the clamping block (9) and the solid base (7). The top of the solid base (7) is used to place the hardware, and the two sets of clamping blocks (9) are pressed into contact with the hardware.

5. The sawing device for hardware production with precise adjustment of sawing length according to claim 1, characterized in that: The fixing plate (11) is trapezoidal, and the inclined side of the fixing plate (11) is in contact with the circular block (16). The second spring (14) is elastically supported between the end pressing plate (15) and the second slide groove (12).

6. The sawing device for hardware production with precise adjustment of sawing length according to claim 1, characterized in that: One end of the hardware is located between the end pressing plate (15) and the saw blade of the sawing mechanism (36). The end pressing plate (15) presses against the end of the hardware. After the end pressing plate (15) presses against one end of the hardware, the end of the hardware is flush with the saw blade of the sawing mechanism (36).

7. The sawing device for hardware production with precise adjustment of sawing length according to claim 2, characterized in that: The outer surface of the threaded rod (18) is threadedly connected to the displacement block (19) and the movable plate (23). The fourth spring (31) is elastically supported between the housing (28) and the push plate (30). The elastic force of the fourth spring (31) is greater than that of the third spring (27). The movable part (25) is in contact with the push plate (30). When the movable part (25) presses against the push plate (30), one side of the movable plate (23) blocks the baffle (38).

8. The sawing device for hardware production with precise adjustment of sawing length according to claim 2, characterized in that: One end of the guide frame (3) is provided with a scale (21), and the top of the pointer (20) corresponds to the position of the scale (21).

9. The sawing device for hardware production with precise adjustment of sawing length according to claim 2, characterized in that: The cylinder (26) is slidably connected to the movable part (25), and the third spring (27) is elastically supported between the cylinder (26) and the movable part (25).

10. The sawing device for hardware production with precise adjustment of sawing length according to claim 2, characterized in that: The magnetic poles of the first strong magnet (37) and the second strong magnet (40) are opposite. The attraction force of the second strong magnet (40) on the first strong magnet (37) is greater than the attraction force of the third spring (27) and the iron block (39). When the second strong magnet (40) attracts the first strong magnet (37), the gripper (34) clamps the hardware.

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