Limiting and adjusting device and machining equipment

Abstract

The utility model discloses a kind of limiting adjusting device and processing equipment, belong to the technical field of limiting adjustment, the limiting adjusting device includes wedge block, the upper surface of wedge block is equipped with first slope;Top block is fixed in the wedge block and is located in the low end of the first slope, and threaded hole is equipped on the top block;Limiting block is located on the wedge block and is located in the side of the top block away from the low end of the first slope and can slide along the first slope, the lower surface of the limiting block is equipped with the second slope matched with the first slope, the upper surface of the limiting block is equipped with limiting impact plane;Adjusting bolt is threadedly connected in the threaded hole, and the end of the adjusting bolt is pushed out from the threaded hole and pushes the limiting block;It further includes locking mechanism for locking the position of the limiting block after the position adjustment of the limiting block.The limiting adjusting device and processing equipment of the utility model have high adjustment precision and the adjusting bolt is not easy to loosen.

Description

Technical Field

[0001] This utility model relates to the field of limit adjustment technology, and in particular to a limit adjustment device and processing equipment. Background Technology

[0002] There is a technical bottleneck in the fine adjustment of the cutting blade in the auxiliary material cutting equipment industry. The limit bolt (fine thread) is usually used for limit adjustment. Specifically, the limit bolt is installed on the base platform to adjust the impact height of the cutting blade. Its bottom is fastened by the nut. The side of the cutting moving part above the base platform is equipped with an impact block. During cutting, the impact block moves downward to impact the limit bolt. This method has the following defects: (1) The limit bolt cannot be precisely adjusted to the required position and often requires repeated adjustment over a long period of time. The theoretical adjustment amount of the current limit bolt (M4×0.5) is 0.5mm per turn. The adjustment amount required in the working scenario is 0.01-0.04mm. Therefore, the limit bolt needs to be rotated between 7-28°. In reality, due to gaps and operational errors, it is difficult to achieve accurate positioning. The cutter position needs to be repeatedly tested and adjusted, which is inefficient (a single adjustment may take more than 30 minutes); (2) The limit bolt is made of ordinary fine-tooth stainless steel and is locked at the bottom by a nut. Due to the small contact area, with the increase of impact frequency, there may be deformation or loosening of the nut, which causes abnormalities such as abnormal cutting height after the position of the limit bolt changes. This is the root cause of frequent maintenance. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a limit adjustment device and processing equipment with high adjustment accuracy and easy adjustment bolt loosening.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: On the one hand, this utility model provides a limit adjustment device, including: A wedge-shaped block, wherein the upper surface of the wedge-shaped block is provided with a first inclined surface; A top block, which is fixed to the wedge-shaped block and located at the lower end of the first inclined surface, and the top block is provided with a threaded hole; A limiting block is provided on the wedge block, located on the side of the top block away from the lower end of the first inclined surface and can slide along the first inclined surface. The lower surface of the limiting block is provided with a second inclined surface that cooperates with the first inclined surface, and the upper surface of the limiting block is provided with a limiting impact plane. An adjusting bolt is threaded into the threaded hole, and the end of the adjusting bolt protrudes from the threaded hole to push against the limiting block; The limit adjustment device also includes a locking mechanism for locking the position of the limit block after the position of the limit block is adjusted.

[0005] In some embodiments of this utility model, a guide block is protruding on the side of the limiting block near the top block, the end of the adjusting bolt pushes the guide block, and the limiting impact plane is located on the side of the limiting block away from the top block.

[0006] In some embodiments of this utility model, the axial direction of the threaded hole is parallel to the first inclined surface.

[0007] In some embodiments of this utility model, the screw of the adjusting bolt includes a large diameter section and a small diameter section located at the end of the large diameter section. The large diameter section is threadedly connected to the threaded hole, the small diameter section is a smooth rod, and the guide block is provided with a guide hole that mates with the small diameter section.

[0008] In some embodiments of this utility model, a first magnet is embedded in the end face of the adjusting bolt, and a second magnet that cooperates with the first magnet is provided in the guide hole.

[0009] In some embodiments of this utility model, the guide block is provided with a vertical threaded hole communicating with the guide hole, and the locking mechanism includes a set screw disposed in the vertical threaded hole, the end of the set screw being used to abut against the small diameter section.

[0010] In some embodiments of this utility model, one of the first inclined surface and the second inclined surface is provided with a groove, and the other is provided with a slide rail that cooperates with the groove.

[0011] In some embodiments of this utility model, the groove is a dovetail groove; And / or, the inclination angle of the first inclined plane and the second inclined plane is 3°-10°; And / or, the adjusting bolt has a specification of M4×0.5mm; And / or, the wedge block and the impact block are made of SKD11 steel.

[0012] On the other hand, the present invention provides a processing device, including a platform fixing plate and a moving part located above the platform fixing plate. The platform fixing plate is provided with the aforementioned limiting adjustment device, the moving part is provided with a processing part, and the side of the moving part is provided with an impact block for impacting the limiting impact plane.

[0013] In some embodiments of this utility model, the platform fixing plate is provided with a receiving groove, the limiting adjustment device is provided in the receiving groove, and the bottom wall of the receiving groove is provided with a top block fixing screw and a wedge block fixing screw; And / or, the processing equipment is a cutting device, and the processing part is a cutting knife.

[0014] This utility model has the following beneficial effects: This utility model discloses a limit adjustment device and processing equipment. The upper surface of a wedge block has a first inclined surface. A top block is fixed to the wedge block and located at the lower end of the first inclined surface, with a threaded hole on the top block. A limit block is located on the wedge block on the side of the top block away from the lower end of the first inclined surface and can slide along the first inclined surface. The lower surface of the limit block has a second inclined surface that mates with the first inclined surface. An adjusting bolt is threaded into the threaded hole, and the end of the adjusting bolt passes through the threaded hole and pushes the limit block. Thus, the second inclined surface of the limit block fits against the first inclined surface of the wedge block. When the adjusting bolt pushes the limit block to slide along the inclined surface, the horizontal displacement (or linear displacement along the inclined surface) of the limit block is converted into a vertical height change. Because the first inclined surface of the wedge block has a small inclination angle, bolt tightening (thread pitch precision control) can be converted into fine position adjustment of the limit block, and the adjustment precision of the bolt is amplified. The threaded transmission adjustment process is very precise and controllable, enabling fine-tuning of the limit position and meeting the requirements of high-precision positioning.

[0015] The limit adjustment device also includes a locking mechanism for locking the position of the limit block after the position of the limit block is adjusted. When the locking mechanism locks the position of the limit block, when an external object (impact block) hits the limiting impact plane of the limit block, the adjusting bolt itself does not directly bear or will not bear the main impact load. It is only responsible for pushing the limit block to adjust the position of the limit block. Therefore, the adjusting bolt is not easy to loosen. This also avoids the threads of the adjusting bolt being damaged by repeated impacts, thus improving the durability and life of the adjusting bolt. The entire limit adjustment device has a high degree of integration and a small size, and can be installed on various workbenches that need to be used, making it convenient to use. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is an overall structural diagram of the limit adjustment device according to an embodiment of the present utility model; Figure 2 for Figure 1 Exploded structure diagram; Figure 3 for Figure 1 A cross-sectional view of the structure; Figure 4 This is an overall structural diagram of the limit adjustment device installed on the platform fixing plate according to an embodiment of the present utility model; Figure 5 for Figure 4 Exploded structure diagram.

[0017] Figure label: 100. Limit adjustment device, 1. Wedge block, 11. First inclined plane, 111. Slide rail 2. Top block, 21. Threaded hole, 3. Limiting block; 31. Second inclined surface; 32. Limiting impact plane; 33. Guide block; 331. Guide hole; 332. Vertical threaded hole. 4. Adjusting bolt, 41. Screw, 411. Large diameter section, 412. Small diameter section. 5. Top screw, 200. Platform fixing plate. 6. Receiving groove; 61. Top block fixing screw; 62. Wedge block fixing screw. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In existing technologies, limit adjustment devices typically use M4×0.5 fine-pitch bolts (0.5mm pitch) for adjustment. The theoretical adjustment range per turn is 500μm, but the actual effective adjustment accuracy is only 50μm-100μm. Moreover, the fine-pitch bolts are made of ordinary stainless steel, and the impact surface is the end face of the nut of the fine-pitch bolt. The impact contact area is small and easily worn. The limit (locking) of the fine-pitch bolts relies on the back nut for fastening, which has problems such as easy loosening and difficulty in adjustment.

[0020] Overall, the existing technology has the following problems: 1. Industry demand gap: High-precision cutting requires an adjustment accuracy of 10μm-40μm, corresponding to an angle adjustment range of 7-28°; existing technologies cannot meet the requirement of one-time precise positioning; a material with higher hardness and rigidity is sought.

[0021] 2. Mechanical structure limitations: The threaded pair has an inherent clearance of 0.02-0.05mm; elastic deformation causes return error; the cumulative error increases with the number of adjustments; structural limitations make it time-consuming and prone to change when tightening the bottom nut.

[0022] 3. Operational challenges: Requires professional technicians to operate; average adjustment time ≥ 30 minutes; requires 3-5 trial cuts for verification.

[0023] On the one hand, this utility model embodiment provides a limit adjustment device 100, such as Figure 1-3 As shown, it includes: a wedge block 1, the upper surface of which is provided with a first inclined surface 11; and a top block 2, which is fixed to the wedge block 1 and located at the lower end of the first inclined surface 11. Figure 1-3The top block 2 (left side) is provided with a threaded hole 21; a limiting block 3 is provided on the wedge block 1 on the side of the top block 2 away from the lower end of the first inclined surface 11 and can slide along the first inclined surface 11. The lower surface of the limiting block 3 is provided with a second inclined surface 31 that cooperates with the first inclined surface 11, and the upper surface of the limiting block 3 is provided with a limiting impact plane 32; an adjusting bolt 4 is threaded to the threaded hole 21, and the end of the adjusting bolt 4 passes through the threaded hole 21 to push the limiting block 3; the limiting adjustment device 100 also includes a locking mechanism for locking the position of the limiting block 3 after the position of the limiting block 3 is adjusted.

[0024] In use, first install the limit adjustment device 100 on the workbench, then rotate the adjusting bolt 4. The end of the adjusting bolt 4 pushes the limit block 3, and the limit block 3 slides along the first inclined surface 11. Finally, after adjusting to a suitable position, lock the position of the limit block 3 using the locking mechanism. In specific implementation, the locking mechanism can be any structural form that is easy for those skilled in the art to conceive of. For example, the limit block 3 has two side walls on its outer side, one side wall of which has a set screw that can push the limit block 3 against the other side wall; or, for another example, the limit block 3 has a positioning hole, and a screw is used to pass through the positioning hole to fix the limit block 3 to the wedge block 1.

[0025] The limiting adjustment device 100 of this utility model has a first inclined surface 11 on the upper surface of the wedge block 1, a top block 2 fixed to the wedge block 1 and located at the lower end of the first inclined surface 11, and a threaded hole 21 on the top block 2. A limiting block 3 is located on the wedge block 1 on the side of the top block 2 away from the lower end of the first inclined surface 11 and can slide along the first inclined surface 11. The lower surface of the limiting block 3 has a second inclined surface 31 that cooperates with the first inclined surface 11. An adjusting bolt 4 is threaded to the threaded hole 21. The end of the adjusting bolt 4 passes through the threaded hole 21 and pushes the limiting block 3. In this way, the second inclined surface 31 of the limiting block 3 fits with the first inclined surface 11 of the wedge block 1. When the adjusting bolt 4 pushes the limiting block 3 to slide along the inclined surface, the horizontal displacement (or linear displacement along the inclined surface) of the limiting block 3 will be converted into a vertical height change. Because the first inclined surface of the wedge block has a small tilt angle, the bolt tightening (thread pitch precision control) can be transformed into fine position adjustment of the limit block 3, and the adjustment precision of the bolt is amplified. The adjustment process of the thread drive is very fine and controllable, and can achieve fine adjustment of the limit position to meet the requirements of high-precision positioning.

[0026] The limit adjustment device 100 also includes a locking mechanism for locking the position of the limit block 3 after the position of the limit block 3 is adjusted. When the locking mechanism locks the position of the limit block 3, when an external object (impact block) impacts the limit impact plane 32 of the limit block 3, the adjusting bolt 4 itself does not directly bear or will not bear the main impact load. It is only responsible for pushing the limit block 3 to adjust the position of the limit block 3. Therefore, the adjusting bolt 4 is not easy to loosen. This also avoids the threads of the adjusting bolt 4 from being damaged by repeated impacts, thus improving the durability and life of the adjusting bolt 4. The whole device has a high degree of integration and a small size. It can be installed on various workbenches that need to be used and is convenient to use.

[0027] like Figure 1-3 As shown, in some embodiments of this utility model, a guide block 33 may be protruding from the side of the limiting block 3 near the top block 2 (i.e., the left side shown in the figure). The end of the adjusting bolt 4 pushes against the guide block 33, and the limiting impact plane 32 is located on the side of the limiting block 3 away from the top block 2 (i.e., the right side shown in the figure). In specific implementations, the guide block 33 can be of various shapes, such as a sphere, a cube, or an irregular three-dimensional shape. In the embodiment shown in the figure, it is a cube. In this way, compared to directly pushing against the limiting block 3, the guide block 33 can concentrate the pushing force of the adjusting bolt 4 onto the guide block 33 rather than the main body of the limiting block 3, further reducing the impact on the adjusting bolt 4.

[0028] In some embodiments of this utility model, the axial direction of the threaded hole 21 can be parallel to the first inclined surface 11. This reduces the tilting or jamming of the limiting block 3 due to force point offset during sliding, ensures that the pushing force of the adjusting bolt 4 is transmitted along the inclined surface direction (or the preset sliding direction), and avoids uneven local friction or gap fluctuations between the second inclined surface 31 of the limiting block 3 and the first inclined surface 11 of the wedge block 1, making the adjustment process smoother and the position control more precise, thereby achieving precise limiting position adjustment. Furthermore, when the axial direction of the threaded hole 21 is horizontal relative to the first inclined surface 11, the adjusting bolt 4 always pushes the guide block 33 to the same position, allowing the guide block 33 to be very small and easy to use.

[0029] It is worth noting that in this embodiment of the invention (where the axis of the threaded hole 21 is parallel to the first inclined plane 11), the height is converted into a function relationship of ΔV = ΔH × sin(angle of the first inclined plane 11 / angle of the second inclined plane 31); when the axis of the threaded hole 21 is horizontal, the height is converted into a function relationship of ΔV = ΔH × tan(angle of the first inclined plane 11 / angle of the second inclined plane 31), where ΔV is the height to which the limiting block 3 rises, and ΔH is the length along which the limiting block 3 advances along the first inclined plane 11. Regardless of which method is used, the bolt tightening (thread pitch precision control) can be converted into fine position adjustment of the limiting block 3, amplifying the adjustment precision of the bolt and enabling fine adjustment of the limiting position to meet the requirements of high-precision positioning.

[0030] In some embodiments of this utility model, such as Figure 2 As shown, the screw 41 of the adjusting bolt 4 may include a large-diameter section 411 and a small-diameter section 412 located at the end of the large-diameter section 411. The large-diameter section 411 is threaded into the threaded hole 21, and the small-diameter section 412 is a smooth rod. The guide block 33 is provided with a guide hole 331 that mates with the small-diameter section 412. In specific implementation, the guide hole 331 is a round hole with an inner diameter slightly larger than the outer diameter of the small-diameter section 412, and the guide hole 331 and the small-diameter section 412 have a certain clearance fit. The large-diameter section 411 and the threaded hole 21 form a primary guide, and the small-diameter section 412 (smooth rod) and the guide hole 331 of the guide block 33 form a secondary sliding guide. Both levels of guide are parallel to the first inclined surface 11, so that the advancing trajectory of the adjusting bolt 4 completely conforms to the sliding direction of the limiting block 3, eliminating the possibility of rotation, shaking or deflection of the limiting block 3, and making the position adjustment more precise.

[0031] In some embodiments of this utility model, a first magnet (not shown) can be embedded in the end face of the adjusting bolt 4 (specifically the small diameter section 412), and a second magnet (not shown) that cooperates with the first magnet is provided in the guide hole 331. In this way, the attraction of the magnet allows the adjusting bolt 4 to pull down the limiting block 3 even when rotating in the opposite direction. That is, no matter whether the adjusting bolt 4 is rotated forward or backward, the limiting block 3 can slide along the first inclined surface 11, which is convenient to use. The attraction of the magnet can also make the adjusting bolt 4 and the limiting block 3 fit together along the axis of the adjusting bolt 4, eliminating gaps and further improving the adjustment accuracy.

[0032] In some embodiments of this utility model, such as Figure 3As shown, the guide block 33 may be provided with a vertical threaded hole 332 communicating with the guide hole 331. The locking mechanism includes a set screw 5 provided in the vertical threaded hole 332, and the end of the set screw 5 is used to abut against the small diameter section 412. In this way, the set screw 5 rigidly fixes the limiting block 3 and the adjusting bolt 4 into one piece. Since the surface of the small diameter section 412 is smooth and fits tightly with the guide hole 331, the pressure of the set screw 5 can be evenly applied to the surface of the smooth rod, forming a stable frictional constraint, so that the limiting block 3 will not slide along the first inclined surface 11, thereby realizing the position locking of the limiting block 3. In this embodiment of the limiting adjustment device 100, when an external object hits the limiting impact plane 32 of the limiting block 3, the impact force will be transmitted through the limiting block 3 to the adjusting bolt 4, and then to the set screw 2. The set screw 2 directly transmits the force to the solid base of the wedge block 1, forming a direct and stable force path with high overall strength.

[0033] In some embodiments of this utility model, one of the first inclined surface 11 and the second inclined surface 31 may be provided with a groove (not shown), and the other may be provided with a slide rail 111 that cooperates with the groove. In the embodiment shown in the figure, the first inclined surface 11 is provided with a slide rail 111, and the second inclined surface 31 is provided with a groove. In this way, the groove and the slide rail 111 cooperate so that the limiting block 3 can only slide along the extension direction of the slide rail 111 (i.e., the inclination direction of the first inclined surface 11), and will not deviate laterally (displacement perpendicular to the inclination direction of the inclined surface), thus improving reliability.

[0034] In some embodiments of this utility model, the groove can be a dovetail groove as shown in the figure. The dovetail groove prevents the limiting block 3 from detaching from the wedge block 1 under extreme impact or accidental conditions, further improving reliability. The inclination angle α of the first inclined surface 11 and the second inclined surface 31 can be 3°-10°, and can be flexibly set according to requirements, such as 4°, 6°, 8°, etc. In this embodiment, it is preferably 5.7°. At this time, the adjusting bolt 4 pushes the limiting block 3 on the first inclined surface at 5.7°. According to the trigonometric function relationship sin5.7 (5.7 is the wedge angle) = 0.1 (the vertical displacement of the limiting block is reduced by about 10 times compared with the inclined surface displacement), that is, the adjusting bolt 4 pushes the limiting block 3 to move 0.01mm, and the vertical height of the limiting block 3 increases by 0.001mm. The adjustment accuracy is magnified by 10 times, realizing micron-level adjustment, which greatly reduces the displacement deviation problem caused by technicians during debugging and tightening. The specification of the adjusting bolt 4 can be M4×0.5mm, with a gap within 0.01mm, ensuring that the process adjustment reaches the μ level, which is convenient for adjustment. The wedge block 1 and the limiting block 3 can be made of SKD11 steel. Furthermore, the top block 2 and the adjusting bolt 4 can also be made of SKD11 steel, which improves the overall strength, reduces wear, and eliminates the need for frequent replacement.

[0035] The comparison between the performance of this utility model and the traditional solution is shown in Table 1: Table 1 Minimum adjustment amount 50μm 1μm 50 times Repeatability ±20μm ±1μm 20 times Lateral stiffness 100N / μm 140N / μm +40% Adjustment time 1800s 180s 90%↓ Service life 50,000 times 200,000 times 4 times In summary, this utility model achieves μ-level (micrometer-level) limit adjustment by proportionally reducing the displacement of the screw limiting mechanism through a wedge structure, improving the adjustment resolution from 500μm to 1μm and the angle control accuracy from ±5° to ±0.5°. This enables rapid and precise fine-tuning of the working equipment (specifically, a cutting device). Furthermore, the application of SKD11 high-strength steel instead of stainless steel improves overall strength. It also solves the problem of debugging efficiency, reducing the adjustment time from 30 minutes to 3 minutes and achieving one-time precise positioning.

[0036] On the other hand, this embodiment of the invention also provides a processing device, such as... Figure 4-5 As shown, the system includes a platform fixing plate 200 and a movable part (not shown) located above the platform fixing plate 200. The platform fixing plate 200 is equipped with the aforementioned limit adjustment device 100, and the movable part is equipped with a processing part (not shown). The side of the movable part is equipped with an impact block (not shown) for impacting the limit impact plane 32. The structure of the limit adjustment device 100 is the same as above, and will not be described again here.

[0037] Furthermore, such as Figure 4 As shown, to improve the accuracy of the limit adjustment, multiple limit adjustment devices 100 can be installed on the platform fixing plate 200. In the embodiment shown in the figure, there are two devices, located on both sides of the platform fixing plate 200 respectively. Preferably, the processing equipment can be a cutting equipment, in which case the processing part is a cutting blade.

[0038] The processing equipment of this utility model has a first inclined surface 11 on the upper surface of the wedge block 1, a top block 2 fixed to the wedge block 1 and located at the lower end of the first inclined surface 11, a threaded hole 21 on the top block 2, a limiting block 3 on the wedge block 1 located on the side of the top block 2 away from the lower end of the first inclined surface 11 and can slide along the first inclined surface 11, a second inclined surface 31 on the lower surface of the limiting block 3 that cooperates with the first inclined surface 11, an adjusting bolt 4 threadedly connected to the threaded hole 21, the end of the adjusting bolt 4 passing through the threaded hole 21 and pushing the limiting block 3, so that the second inclined surface 31 of the limiting block 3 fits against the first inclined surface 11 of the wedge block 1, and when the adjusting bolt 4 pushes the limiting block 3 to slide along the inclined surface, the horizontal displacement (or linear displacement along the inclined surface) of the limiting block 3 will be converted into a vertical height change. Because the first inclined surface of the wedge block has a small tilt angle, the bolt tightening (thread pitch precision control) can be transformed into fine position adjustment of the limit block 3, and the adjustment precision of the bolt is amplified. The adjustment process of the thread drive is very fine and controllable, and can achieve fine adjustment of the limit position to meet the requirements of high-precision positioning.

[0039] The limit adjustment device 100 also includes a locking mechanism for locking the position of the limit block 3 after the position of the limit block 3 is adjusted. When the locking mechanism locks the position of the limit block 3, when an external object (impact block) impacts the limit impact plane 32 of the limit block 3, the adjusting bolt 4 itself does not directly bear or will not bear the main impact load. It is only responsible for pushing the limit block 3 to adjust the position of the limit block 3. Therefore, the adjusting bolt 4 is not easy to loosen. This also avoids the threads of the adjusting bolt 4 from being damaged by repeated impacts, thus improving the durability and life of the adjusting bolt 4. The whole device has a high degree of integration and a small size. It can be installed on various workbenches that need to be used and is convenient to use.

[0040] In some embodiments of this utility model, such as Figure 5 As shown, the platform fixing plate 200 may be provided with a receiving groove 6, and the limit adjustment device 100 is provided in the receiving groove 6. The bottom wall of the receiving groove 6 is provided with a top block fixing screw 61 and a wedge block fixing screw 62. In a specific implementation, the top block 2 and the wedge block 1 can be integrally formed. In this embodiment of the utility model, the top block 2 and the wedge block 1 are not integrally formed. The bottom of the top block 2 is provided with a dovetail groove, which is convenient for installation on the wedge block 1. In this case, the top block fixing screw 61 passes through the platform fixing plate 200 and the wedge block 1 and is fixed (specifically, it can be threaded) at the bottom of the top block 2; the wedge block fixing screw 62 passes through the platform fixing plate 200 and is fixed at the bottom of the wedge block 1. In this way, not only is the overall strength high and the fixing firm, but it is also easy to disassemble when other tooling needs to be replaced.

[0041] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0042] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A limit adjustment device, characterized in that, include: A wedge-shaped block, wherein the upper surface of the wedge-shaped block is provided with a first inclined surface; A top block, which is fixed to the wedge-shaped block and located at the lower end of the first inclined surface, and the top block is provided with a threaded hole; A limiting block is provided on the wedge block, located on the side of the top block away from the lower end of the first inclined surface and can slide along the first inclined surface. The lower surface of the limiting block is provided with a second inclined surface that cooperates with the first inclined surface, and the upper surface of the limiting block is provided with a limiting impact plane. An adjusting bolt is threaded into the threaded hole, and the end of the adjusting bolt protrudes from the threaded hole to push against the limiting block; The limit adjustment device also includes a locking mechanism for locking the position of the limit block after the position of the limit block is adjusted.

2. The limit adjustment device according to claim 1, characterized in that, A guide block protrudes from the side of the limiting block near the top block, and the end of the adjusting bolt pushes against the guide block. The limiting impact plane is located on the side of the limiting block away from the top block.

3. The limit adjustment device according to claim 2, characterized in that, The axis of the threaded hole is parallel to the first inclined plane.

4. The limit adjustment device according to claim 3, characterized in that, The adjusting bolt has a large diameter section and a small diameter section at the end of the large diameter section. The large diameter section is threaded into the threaded hole, and the small diameter section is a smooth rod. The guide block is provided with a guide hole that mates with the small diameter section.

5. The limit adjustment device according to claim 4, characterized in that, The end face of the adjusting bolt is fitted with a first magnet, and the guide hole is provided with a second magnet that cooperates with the first magnet.

6. The limit adjustment device according to claim 4, characterized in that, The guide block is provided with a vertical threaded hole that communicates with the guide hole. The locking mechanism includes a set screw located in the vertical threaded hole, and the end of the set screw is used to abut against the small diameter section.

7. The limit adjustment device according to any one of claims 1-6, characterized in that, One of the first inclined surface and the second inclined surface is provided with a sliding groove, and the other is provided with a sliding rail that cooperates with the sliding groove.

8. The limit adjustment device according to claim 7, characterized in that, The groove is a dovetail groove; And / or, the inclination angle of the first inclined plane and the second inclined plane is 3°-10°; And / or, the adjusting bolt has a specification of M4×0.5mm; And / or, the wedge block and the impact block are made of SKD11 steel.

9. A processing equipment, characterized in that, It includes a platform fixing plate and a movable part located above the platform fixing plate. The platform fixing plate is provided with a limit adjustment device as described in any one of claims 1-8. The movable part is provided with a processing part, and the side of the movable part is provided with an impact block for impacting the limit impact plane.

10. The processing equipment according to claim 9, characterized in that, The platform fixing plate is provided with a receiving groove, the limiting adjustment device is located in the receiving groove, and the bottom wall of the receiving groove is provided with a top block fixing screw and a wedge block fixing screw; And / or, the processing equipment is a cutting device, and the processing part is a cutting knife.

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