A prefabricated tooth sawing set

Abstract

The utility model discloses an assembly type saw tooth group device, including connecting rod ball head subassembly, ball bowl subassembly and connecting sleeve, the connecting rod ball head subassembly includes connecting rod, the ball head of integrative forming in the one end of connecting rod and be located the threaded section of another end of connecting rod, ball bowl subassembly is located the below of connecting rod ball head subassembly, ball bowl subassembly has the inner spherical surface, the ball head is rotatablely embedded in this inner spherical surface, connecting sleeve is provided with internal thread in, and its top is provided with connecting assembly, the bottom of connecting sleeve is provided with auxiliary fixing mechanism symmetrically, the utility model belongs to punch accessory technical field, and specifically refers to an assembly type saw tooth group device.

Description

Technical Field

[0001] This utility model belongs to the technical field of punch press accessories, specifically referring to an assembled saw tooth assembly device. Background Technology

[0002] The sawing assembly of a punch press is a key transmission component connecting the crank and the slide block. Its core function is to convert the rotational motion of the crank into the linear reciprocating motion of the slide block, and to withstand enormous impact loads. Traditional sawing assembly devices typically use a threaded connecting rod and nut sleeve for connection and length adjustment to meet the requirements of different die mounting heights. However, existing punch press connection devices have many technical drawbacks in practical applications, making it difficult to adapt to the harsh working conditions of high-frequency impact and severe vibration of punch presses. Specific problems are as follows: Firstly, the connecting rod and sleeve of the existing device are mostly connected by a single thread. The severe vibration during the operation of the punch press can easily cause the thread pair to rotate in the opposite direction and loosen. This will not only cause the accuracy of the slide movement to deviate, but in severe cases, it can also cause the parts to fall off, posing a great safety hazard. Although some improved solutions add ordinary washers or anti-loosening nuts, they rely solely on friction to prevent loosening, which cannot resist long-term high-frequency vibration and has a limited anti-loosening effect. Moreover, they lack a guiding and limiting structure for the thread clamping process, which can easily lead to clamping failure due to the displacement of the anti-loosening components.

[0003] Secondly, the rotating parts of existing devices (such as the ball head and ball cup mating structure) are mostly made of a single metal material: if all steel is used, although the strength requirements can be met, the steel-to-steel friction coefficient is high, and long-term rotation is prone to serious wear, requiring frequent shutdowns to replace parts, which affects production efficiency; if all copper or other soft metal materials are used, although friction can be reduced, the structural rigidity is insufficient, and it is prone to deformation under the huge impact force of the punch press, causing the ball head to jam and unable to rotate flexibly; at the same time, most rotating parts are not designed with a long-term lubrication structure, and the lubricating medium is prone to rapid loss, further aggravating the wear problem. Utility Model Content

[0004] To address the aforementioned problems of poor anti-loosening reliability and easy wear of rotating parts in existing punch press sawing assembly devices, this utility model provides an assembled sawing assembly device.

[0005] To achieve the above functions, the technical solution adopted by this utility model is as follows: an assembled saw tooth assembly device, including a connecting rod ball head assembly, a ball cup assembly and a connecting sleeve; The connecting rod ball joint assembly includes a connecting rod, a ball joint integrally formed at one end of the connecting rod, and a threaded section at the other end of the connecting rod. A ball cup assembly is located below the connecting rod ball head assembly. The ball cup assembly has an inner spherical surface, and the ball head is rotatably fitted into the inner spherical surface. The connecting sleeve is provided with an internal thread, which is adapted to the thread of the threaded section, and a connecting component is provided on its top. The bottom of the connecting sleeve is symmetrically provided with auxiliary fixing mechanisms.

[0006] Furthermore, the auxiliary fixing mechanism includes a support block fixed to the bottom of the connecting sleeve, an arc-shaped clamping plate located inside the support block, and a screw threaded to the support block; The end of the screw is rotatably connected to the outer wall of the arc-shaped clamp.

[0007] Furthermore, a sliding rod is fixedly installed in the support block, and the sliding rod slides in conjunction with a guide hole opened at the top of the arc-shaped clamping plate.

[0008] Furthermore, the inner wall of the arc-shaped clamp is provided with a snap-fit ​​thread that engages with the threaded section.

[0009] Furthermore, the ball cup assembly includes a steel outer sheath and a copper ball cup embedded in the steel outer sheath; An oil storage groove is formed on the inner spherical surface of the copper spherical bowl.

[0010] Furthermore, the connecting assembly includes a lower fixing cover, an upper fixing cover, and two semi-circular copper sleeves; the bottom of the lower fixing cover has a plurality of plug bolts evenly distributed along the circumference; The upper fixing cover is detachably connected to the lower fixing cover by a plurality of fastening bolts; The two semi-circular copper sleeves are disposed within the cavity formed by the upper and lower fixing covers, and together form a circular channel for clamping and fixing the crank.

[0011] Furthermore, the top surface of the connecting sleeve is provided with a plurality of fixing holes along the circumference, and the plug bolt is inserted and fixed in the fixing holes.

[0012] Furthermore, a pressure cap is fitted at the connection between the connecting rod and the ball head, and the pressure cap has evenly distributed round holes.

[0013] Compared with the prior art, the present invention achieves the following beneficial effects by adopting the above structure: 1. Through the coordinated design of the connecting sleeve, threaded section, and auxiliary fixing mechanism, on the one hand, the threaded connection between the threaded section and the threaded hole inside the connecting sleeve enables rapid assembly and length adjustment of the connecting rod ball joint assembly and the connecting sleeve, adapting to the stroke requirements of different punch presses; on the other hand, the auxiliary fixing mechanism drives the arc-shaped clamping plate to clamp the threaded section through the screw, and the inner wall of the clamping plate engages precisely with the threaded section, forming a rigid mechanical interlock, which can effectively resist the severe vibration during the operation of the punch press, completely avoid the risk of loosening of ordinary threaded connections, significantly improve the connection stability and operational safety of the device, and at the same time, the guide limit design of the slide bar ensures that the clamping plate moves accurately without jamming, further ensuring the reliable operation of the anti-loosening mechanism.

[0014] 2. The ball cup assembly utilizes a bimetallic composite structure of a steel outer sleeve and a copper ball cup. The steel outer sleeve provides sufficient structural rigidity, withstanding the high-frequency impact loads of the punch press without easily deforming, ensuring stable support for the ball head's rotation. The copper ball cup, with its self-lubricating and wear-resistant properties, significantly reduces friction and wear with the steel ball head, minimizing component wear. Simultaneously, the oil reservoir on the inner surface of the copper ball cup continuously stores lubricating medium, providing long-term lubrication for the ball head's rotation and further extending the service life of the rotating pair. Compared to a single-metal ball cup structure, this design solves the problems of easy wear in all-steel ball cups and insufficient strength in all-copper ball cups, while ensuring long-term stable operation of the device through the dual guarantee of "strength support and low-friction lubrication." Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an assembled saw tooth assembly device proposed in this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of an assembled saw tooth assembly device proposed in this utility model. Figure 2 ; Figure 3 This is a schematic diagram of the overall structure of the connecting sleeve, auxiliary fixing mechanism and connecting rod ball head assembly of the assembled saw teeth assembly device proposed in this utility model. Figure 4 This is a cross-sectional view of an assembled saw tooth assembly device proposed in this utility model; Figure 5 for Figure 4 Enlarged view of a portion of point A in the middle; Figure 6 This is a schematic diagram of the overall structure of the connecting rod ball joint assembly proposed in this utility model.

[0016] Among them, 1. Connecting rod ball head assembly, 11. Connecting rod, 12. Ball head, 13. Threaded section, 2. Ball cup assembly, 21. Steel outer sleeve, 22. Copper ball cup, 3. Connecting sleeve, 31. Fixed insertion hole, 32. Internal threaded hole, 4. Connecting assembly, 41. Lower fixed cover, 42. Upper fixed cover, 43. Copper sleeve, 44. Fastening bolt, 45. Insertion bolt, 5. Auxiliary fixing mechanism, 51. Support block, 52. Arc-shaped clamp, 53. Tightening screw, 54. Sliding rod, 55. Snap-fit ​​thread, 6. Pressure cap, 61. Round hole. Detailed Implementation

[0017] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] Unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. The present invention will be further described in detail below with reference to the accompanying drawings.

[0020] like Figure 1-6As shown, this utility model provides an assembled saw tooth assembly device, including a connecting rod ball head assembly 1, a ball cup assembly 2, and a connecting sleeve 3; the connecting rod ball head assembly 1 includes a connecting rod 11, a ball head 12 integrally formed at one end of the connecting rod 11, and a threaded section 13 at the other end of the connecting rod 11; a pressure cap 6 is fitted at the connection between the connecting rod 11 and the ball head 12, and the pressure cap 6 has evenly distributed circular holes 61, which are tightened and fixed to the punch press slide by bolts passing through the circular holes 61 to limit the axial movement of the connecting rod ball head assembly 1; the ball cup assembly 2 is located below the connecting rod ball head assembly 1, and the ball... The bowl assembly 2 has an inner spherical surface, and the ball head 12 is rotatably embedded in the inner spherical surface; the connecting sleeve 3 is provided with an internal thread 32, which is threadedly adapted to the threaded section 13, thereby connecting the connecting rod ball head assembly 1 to the connecting sleeve 3; the top surface of the connecting sleeve 3 is provided with a plurality of fixing holes 31 along the circumference, and the plug bolt 45 is inserted and fixed in the fixing holes 31. After the plug bolt 45 is inserted into the fixing holes 31, it can effectively transmit the torque from the connecting assembly 4 to the connecting sleeve 3, avoid the threaded pair bearing the main torque, and help protect the threads; A connecting assembly 4 is provided at the top of the connecting sleeve 3 for fixing the device to the crank of the punch press. The connecting assembly 4 includes a lower fixing cover 41, an upper fixing cover 42, and two semi-circular copper sleeves 43. Multiple insertion bolts 45 are evenly distributed circumferentially at the bottom of the lower fixing cover 41. The upper fixing cover 42 is detachably connected to the lower fixing cover 41 by multiple fastening bolts 44. The two semi-circular copper sleeves 43 are disposed within the cavity formed by the upper fixing cover 42 and the lower fixing cover 41, forming a circular channel for clamping and fixing the crank. The two semi-circular copper sleeves 43 are fitted onto the journal of the punch press crank. The upper fixing cover 42 and the lower fixing cover 41 are fastened by bolts, generating a large clamping force to firmly fix the semi-circular copper sleeves 43 (and thus the entire device) to the crank. The function of the copper sleeves 43 is to protect the crank surface and provide good frictional contact. Auxiliary fixing mechanisms 5 are symmetrically arranged at the bottom of the connecting sleeve 3, which are used to engage with the threaded section 13 after the threaded section 13 is screwed into the internal thread 32, so as to restrict its reverse rotation.

[0021] like Figure 1-5 As shown, the auxiliary fixing mechanism 5 includes a support block 51 fixed to the bottom of the connecting sleeve 3, an arc-shaped clamping plate 52 located inside the support block 51, and a screw rod 53 threaded onto the support block 51. The end of the screw rod 53 is rotatably connected to the outer wall of the arc-shaped clamping plate 52. By tightening the screw rod 53, the arc-shaped clamping plate 52 can be driven to move closer to or away from the threaded section 13. The severe vibration during the operation of the punch press can cause ordinary threaded connections to rotate in the opposite direction and loosen, leading to safety accidents. When the threaded section 13 is screwed into place, tightening the screw rod 53 will push the arc-shaped clamping plate 52 to move inward, tightly locking the threaded section 13, thereby forming a mechanical interlock and effectively preventing loosening caused by vibration. Its rotatable connection end ensures that there is no interference when pushing. A slide rod 54 is also fixedly installed in the support block 51. The slide rod 54 slides and engages with the guide hole opened on the top of the arc-shaped clamping plate 52. It is used to guide and limit the movement of the arc-shaped clamping plate 52, ensuring that the arc-shaped clamping plate 52 can only move strictly in a straight line in the horizontal direction, and cannot deflect, tilt or jam. The inner wall of the arc-shaped clamping plate 52 is provided with a snap-fit ​​thread 55 that engages with the threaded section 13. The snap-fit ​​thread 55 on the inner wall of the arc-shaped clamping plate 52 is completely consistent with the pitch and tooth profile of the threaded section 13 of the connecting rod 11. When clamped, the two form a "rigid engagement", which completely locks the "circumferential rotational freedom" of the threaded section 13 of the connecting rod 11.

[0022] like Figure 1 , 2 As shown in Figure 4, the ball cup assembly 2 includes a steel outer sheath 21 and a copper ball cup 22 embedded in the steel outer sheath 21. The steel outer sheath 21 and the copper ball cup 22 adopt a bimetallic structure. The copper ball cup 22 serves as a wear-resistant bushing. Copper is relatively soft, wear-resistant, and has self-lubricating properties, which can effectively reduce friction and wear between the steel ball head 12 and the main structure, protecting the more expensive ball head 12 and the main structure. The steel outer sheath 21 provides structural strength and rigidity, ensuring that the assembly does not deform when subjected to huge impact forces. Through the combination and performance division of the two metals, the core functions of "structural support and low-friction rotation" are achieved. An oil reservoir is opened on the inner spherical surface of the copper ball cup 22 for storing lubricating medium.

[0023] In practical use 1. Pre-installation of ball cup assembly 2: Fix ball cup assembly 2 to the corresponding position of punch press slide through the preset mounting hole, ensuring that its steel outer sleeve 21 fits tightly with the slide plane. Then, smoothly insert the ball head 12 of connecting rod ball head assembly 1 into the inner spherical surface of copper ball cup 22, and check that the ball head 12 rotates flexibly and without jamming within a 360° range to ensure that the angle compensation function is effective. 2. Pressure cap 6 is fixed and limited: The pressure cap 6 is sleeved on the transition connection section between the connecting rod 11 and the ball head 12, so that the lower end face of the pressure cap 6 and the upper edge of the steel outer sleeve 21 of the ball cup assembly 2 are kept in a gap. Align the round hole 61 on the pressure cap 6 with the preset screw hole of the slider, insert the bolt and tighten it evenly. The pressure cap 6 forms an axial constraint on the connecting rod 11, limiting its movement range to within the design allowable range. 3. Length adjustment and initial connection: Hold the connecting sleeve 3 and align its internal thread 32 with the threaded section 13 of the connecting rod 11. Slowly rotate the sleeve to move it axially along the threaded section 13. During the process, measure the total length of the device (the distance from the slider mounting surface to the top surface of the connecting sleeve 3) in real time until it is completely matched with the punch mold height parameter. Stop rotating and keep the sleeve in position. 4. Locking the anti-loosening mechanism: Simultaneously rotate the screws 53 on both sides of the bottom of the connecting sleeve 3, and observe the arc-shaped clamping plate 52 moving smoothly along the guide hole of the slide rod 54 until the snap-fit ​​thread 55 on the inner wall of the clamping plate is fully engaged with the thread section 13 of the connecting rod 11 (this can be judged by the screw tightening torque; stop when the preset value is reached), forming a rigid mechanical interlock. At this time, try rotating the connecting sleeve 3 in the opposite direction; there should be no loosening or displacement. 5. Crank end fixing: symmetrically attach the two semi-circular copper sleeves 43 to the crank journal of the punch press, first put on the fixing cover 41 (so that the bottom insertion bolt 45 is aligned with the fixing insertion hole 31 on the top surface of the connecting sleeve 3 and fully inserted), then prepare to assemble the fixing cover 42. After putting on the upper fixing cover 42, tighten each fastening bolt 44 evenly in the circumference so that the copper sleeve 43 tightly hugs the crank and the connecting component 4 and the connecting sleeve 3 do not rotate relative to each other, thus completing the assembly of the power transmission chain of the entire device.

[0024] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An assembled saw tooth assembly device, comprising a connecting rod ball head assembly (1), a ball cup assembly (2), and a connecting sleeve (3); The connecting rod ball head assembly (1) includes a connecting rod (11), a ball head (12) integrally formed at one end of the connecting rod (11), and a threaded section (13) provided at the other end of the connecting rod (11). The ball cup assembly (2) is located below the connecting rod ball head assembly (1). The ball cup assembly (2) has an inner spherical surface, and the ball head (12) is rotatably embedded in the inner spherical surface. characterized in that The connecting sleeve (3) is provided with an internal thread (32) that is threadedly connected to the threaded section (13), and a connecting component (4) is provided on its top. The bottom of the connecting sleeve (3) is symmetrically provided with auxiliary fixing mechanisms (5).

2. The assembled tooth sawing set device according to claim 1, characterized in that: The auxiliary fixing mechanism (5) includes a support block (51) fixed to the bottom of the connecting sleeve (3), an arc-shaped clamp (52) located inside the support block (51), and a screw rod (53) threaded to the support block (51). The end of the screw (53) is rotatably connected to the outer wall of the arc-shaped clamp (52).

3. The assembled saw tooth assembly device according to claim 2, characterized in that: A slide rod (54) is also fixedly installed in the support block (51), and the slide rod (54) slides in cooperation with the guide hole opened on the top of the arc-shaped clamp (52).

4. The assembled saw tooth assembly device according to claim 2, characterized in that: The inner wall of the arc-shaped clamp (52) is provided with a snap-fit ​​thread (55) that engages with the threaded section (13).

5. The assembled saw tooth assembly device according to claim 1, characterized in that: The ball bowl assembly (2) includes a steel outer sheath (21) and a copper ball bowl (22) embedded in the steel outer sheath (21). An oil storage groove is provided on the inner spherical surface of the copper spherical bowl (22).

6. The assembled saw tooth assembly device according to claim 1, characterized in that: The connecting assembly (4) includes a lower fixing cover (41), an upper fixing cover (42), and two semi-circular copper sleeves (43); the bottom of the lower fixing cover (41) has a plurality of plug bolts (45) evenly distributed along the circumference. The upper fixing cover (42) is detachably connected to the lower fixing cover (41) by a plurality of fastening bolts (44); The two semi-circular copper sleeves (43) are disposed in the cavity formed by the upper fixed cover (42) and the lower fixed cover (41), and together form a circular channel for clamping and fixing the crank.

7. The assembled saw tooth assembly device according to claim 6, characterized in that: The top surface of the connecting sleeve (3) is provided with a plurality of fixed insertion holes (31) along the circumferential direction, and the insertion bolt (45) is inserted and fixed in the fixed insertion hole (31).

8. The assembled saw tooth assembly device according to claim 1, characterized in that: A pressure cap (6) is fitted at the connection between the connecting rod (11) and the ball head (12), and the pressure cap (6) has round holes (61) evenly distributed on it.

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