Tool tray of numerical control machine tool

Abstract

The utility model relates to a tool tray of a numerical control machine tool. The tool tray structurally comprises a supporting plate and a plurality of limiting mechanisms. An existing tool tray on the market has obvious limitation when being matched with diversified workpieces to be machined. The limiting mechanism is composed of the positioning rod, the cam, the pawl and the ratchet wheel, corresponding to the cam, on the positioning rod, and reverse rotation of the cam is effectively prevented through the meshing design of the ratchet wheel and the pawl. The limiting range and force can be flexibly adjusted according to the size of the workpiece to be machined by rotating the cam and utilizing the characteristic that the distances between all parts of the side end of the cam and the central axis are unequal, and meanwhile it is ensured that different parts of the cam can be tightly attached to the edge of the irregular-shaped workpiece to be machined. According to the design, the adaptability to diversified workpieces to be machined is remarkably improved, then the machining precision and quality are improved, meanwhile, the production efficiency is improved, and the production cost is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of CNC machining auxiliary equipment technology, and in particular to a tooling tray for a CNC machine tool. Background Technology

[0002] In the field of CNC machine tool machining, the tooling tray, as a key device for fixing the workpiece to be machined, has a decisive influence on the accuracy and stability of the machining process. Traditional CNC machine tool tooling trays mainly consist of a support plate and multiple limiting mechanisms. The workpiece to be machined is placed on the upper middle section of the support plate, while the limiting mechanisms surround the workpiece in a rectangular array to restrict its position.

[0003] However, current technologies have significant limitations. Limiting mechanisms traditionally rely on fixed-size components such as locating pins, thus only adapting to workpieces of specific dimensions. If the workpiece dimensions change, the corresponding locating pin must be replaced, increasing production costs, extending changeover time, and reducing production efficiency. Furthermore, the fixed positions of the locating holes lack the ability to be flexibly adjusted according to the actual size and shape of the workpiece. This makes it difficult to achieve stable and precise limiting when processing workpieces of different sizes and shapes, easily leading to workpiece position deviation during processing, thus affecting processing accuracy and product quality.

[0004] To overcome the aforementioned shortcomings of existing technologies, this utility model proposes an innovative CNC machine tool tooling tray design. This design significantly improves the versatility and flexibility of the tooling tray, ensures the accuracy and stability of the machining process, and has significant technological advancement and practical application value. Utility Model Content

[0005] To address the limitations of existing technologies, this invention proposes a machining equipment with a cleaning function. This equipment significantly improves the versatility and flexibility of tooling pallets, ensures the accuracy and stability of the machining process, and effectively solves the limitations of fixed locating pin dimensions and fixed locating hole positions in existing technologies.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A tooling tray for a CNC machine tool includes a support plate with multiple positioning holes arranged in a rectangular array. It also includes multiple limiting mechanisms arranged in a rectangular array around a workpiece. Each limiting mechanism includes two vertically oriented positioning rods, each inserted into a corresponding positioning hole. Each limiting mechanism further includes a cam and a pawl, each corresponding to a positioning rod. The cam, pawl, and corresponding positioning rod are keyed together. A ratchet is keyed to the positioning rod corresponding to the cam, engaging with the pawl. Each limiting mechanism also includes a limiting rod, with a tension spring between the limiting rod and the corresponding positioning rod. The two axial ends of the tension spring are movably connected to the corresponding limiting rod and positioning rod, respectively.

[0008] Preferably, each positioning rod includes a cylindrical limiting section that is inserted into the positioning hole. Furthermore, the upper side of the limiting section is coaxially fixedly connected to a mating section with a polygonal horizontal structure, and the mating section is connected to a corresponding cam, ratchet, or pawl key.

[0009] Preferably, a disc-shaped positioning section is provided between each limiting segment and its corresponding mating segment. The projection of the positioning section on the horizontal plane completely covers the projection of the mating segment on the horizontal plane. The positioning rod that mates with the cam is positioning rod I, and the positioning rod that mates with the pawl is positioning rod II. A screw is coaxially fixedly connected to the upper side of the mating segment of positioning rod I, and a locking nut is screwed onto the outer side of the screw. Furthermore, the cam and the ratchet are located between the locking nut and the positioning segment.

[0010] Preferably, an anti-loosening nut is screwed onto the outside of the screw, the anti-loosening nut is located above the locking nut, and the anti-loosening nut abuts against the locking nut.

[0011] Preferably, a sliding groove is provided on the mating section of the positioning rod II, and a sliding rod is inserted into the sliding groove. Furthermore, a limiting tube is provided on the outside of the sliding rod, and the upper end of the sliding rod is fixedly connected to the inner cavity of the limiting tube. The projection of the inner cavity of the limiting tube on the horizontal plane completely covers the projection of the mating section on the horizontal plane. Furthermore, the lower end face of the limiting tube abuts against the pawl. A compression spring is sleeved on the outside of the mating section of the positioning tube. The two axial ends of the compression spring abut against the corresponding positioning section and the pawl, respectively. When the compression spring is not affected by external force, the pawl and the ratchet are on the same horizontal plane.

[0012] Preferably, the projection of the mating section on the horizontal plane is a regular polygon structure, and the cam, ratchet and corresponding mating section sliding key are connected.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The limiting mechanism of this utility model is equipped with a cam device. This cam device is connected to the positioning rod via a key, and the ratchet and pawl engagement mechanism prevents reverse rotation. In actual operation, the rotating cam can flexibly adjust the limiting range and force according to the actual size of the workpiece by varying the distance between its side end and the central axis. For larger workpieces, the cam can be rotated to an appropriate position to ensure effective support of the cam side end on the edge of the workpiece, thus achieving stable limiting. For smaller workpieces, the cam position can also be adjusted to ensure precise fixation. By introducing a multi-functional design, the tooling tray significantly improves its adaptability to workpieces of different sizes. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the overall structure of the limiting mechanism of this utility model.

[0017] Figure 3 This is a schematic diagram of the overall structure of the positioning rod I of this utility model.

[0018] Figure 4 This is a schematic diagram showing the cooperation relationship between the positioning rod II and the sliding rod of this utility model.

[0019] Figure 5 This is a schematic diagram showing the positional relationship between the cam and the ratchet of this utility model.

[0020] Figure 6 This is a schematic diagram showing the relationship between the ratchet pawl and the compression spring of this utility model.

[0021] In the diagram: 1. Support plate; 2. Positioning hole; 3. Limiting mechanism; 301. Positioning rod; 3011. Limiting section; 3012. Positioning section; 3013. Mating section; 3014. Screw; 302. Compression spring; 303. Pawl; 304. Limiting tube; 305. Anti-loosening nut; 306. Locking nut; 307. Ratchet; 308. Cam; 309. Slide rod; 310. Slide groove. Detailed Implementation

[0022] 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.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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.

[0024] See Figure 1 As shown, a tooling tray for a CNC machine tool, consistent with existing technology, includes a support plate 1 and multiple limiting mechanisms 3. In actual operation, the workpiece to be processed is placed in the upper middle part of the support plate 1. Therefore, the limiting mechanisms 3 need to be arranged in a rectangular array around the workpiece to achieve effective positioning of the workpiece.

[0025] It should be noted that in existing technology devices, the limiting mechanism 3 is achieved through components such as positioning pins.

[0026] Accordingly, in order to accommodate workpieces of different sizes, the device has multiple positioning holes 2 arranged in a rectangular array on the support plate 1. These positioning holes 2 are used to provide installation positions for the limiting mechanisms 3, so that the multiple limiting mechanisms 3 are arranged in a rectangular array around the workpiece. This layout can stably and accurately limit the workpiece, ensuring the accuracy and stability of the processing.

[0027] Please refer to Figure 2 Specifically, each limiting mechanism 3 includes two vertically axially oriented positioning rods 301, which are inserted into the positioning holes 2 to provide both precise positioning and stable support.

[0028] In addition, each of the limiting mechanisms 3 also includes a cam 308 and a pawl 303, with the cam 308 and the pawl 303 each corresponding to a positioning rod 301, and the cam 308 is keyed to the pawl 303 and the corresponding positioning rod 301.

[0029] Meanwhile, a ratchet 307 is also keyed to the positioning rod 301 corresponding to the cam 308. At this time, by utilizing the meshing connection between the ratchet 307 and the pawl 303, the device can fully prevent the cam 308 from reversing after constraining the position of the workpiece using the cam 308, thereby giving full play to the structural feature that the different parts of the side end of the cam 308 are not equal to its central axis.

[0030] Please refer to Figure 3 , Figure 4 , Figure 5 , Figure 6Each limiting mechanism 3 has two positioning rods 301, namely positioning rod I that cooperates with cam 308 and positioning rod II that cooperates with pawl 303.

[0031] Please refer to Figure 3 , Figure 4 Each positioning rod 301 includes a cylindrical limiting section 3011, which is used to insert into the corresponding positioning hole 2 on the support plate 1 to play a role in initial positioning and support.

[0032] In addition, please refer to Figure 5 , Figure 6 The upper side of the limiting section 3011 is coaxially fixedly connected to a mating section 3013 with a horizontal polygonal structure (preferably a regular polygonal structure). The mating section 3013 is keyed to the corresponding cam 308, ratchet 307, and pawl 303. The polygonal structure of the mating section 3013 ensures that the cam 308, ratchet 307, and pawl 303 are accurately positioned circumferentially with the positioning rod 301 during installation and use, preventing rotation and ensuring the normal operation of the limiting mechanism 3.

[0033] Each limiting segment 3011 is further provided with a disc-shaped positioning segment 3012 between it and the corresponding mating segment 3013. The horizontal projection of the positioning segment 3012 completely covers the mating segment 3013, achieving axial positioning. The function of the positioning segment 3012 is to provide axial positioning for components such as the cam 308, ratchet 307, and pawl 303, preventing these components from axially moving during operation.

[0034] It should be noted that a screw rod 3014 is also fixedly connected to the upper end of the mating section 3013 corresponding to positioning rod I. A locking nut 306 and an anti-loosening nut 305 are screwed sequentially onto the outer side of the screw rod 3014. The cam 308 and ratchet 307 are positioned between the locking nut 306 and the positioning section 3012. Tightening the locking nut 306 will axially fix the parts and prevent movement. The anti-loosening nut 305 is located above the locking nut 306 and abuts against it. Its function is to prevent the locking nut 306 from loosening during operation, further ensuring the installation stability of the cam 308 and ratchet 307.

[0035] Furthermore, to ensure that the pawl 303 always provides positional constraint to the ratchet 307 in practice, this device also includes a limiting rod 312 for each limiting mechanism 3. A tension spring 311 is provided between the limiting rod 312 and the positioning rod II corresponding to the pawl 303. The two axial ends of the tension spring 311 are movably connected to the corresponding limiting rod 312 and positioning rod II, respectively. The main function of the tension spring 311 is to apply tension between the limiting rod 312 and the positioning rod II, ensuring that when the ratchet 307 rotates to drive the pawl 303, the tension spring 311 can accumulate more elastic potential energy, and thus, by virtue of its own characteristics, keep the pawl 303 inclined to move towards the ratchet 307.

[0036] It should be noted that, in practice, to ensure that the operator can easily release the ratchet 303 from the ratchet 307 and to ensure that the operator can reverse the cam 308 to release the limit on the workpiece, this device constrains the ratchet 303 to slide with the corresponding mating section 3013. Furthermore, a compression spring 302 is sleeved on the outer side of the mating section 3013 of the positioning rod II. The two axial ends of the compression spring 302 abut against the corresponding positioning section 3012 and the ratchet 303, respectively. When the compression spring 302 is in a free state, the ratchet 303 and the ratchet 307 are at the same horizontal position, ensuring that the ratchet 303 can accurately engage the ratchet 307. In actual operation, the position of the ratchet 303 can be adjusted by pressing down on it, thereby releasing the ratchet 303 from the ratchet 307.

[0037] It should be emphasized that, in practice, both the ratchet 307 and the cam 308 are slidably connected to the corresponding mating section 3013. This allows them to be flexibly adjusted according to actual needs. Even when replacing damaged parts, it is easy to adjust the automatic rotation direction of the ratchet 307 to ensure that the rotation direction of the cam 308 is consistent with the actual positioning direction.

[0038] In practical use, this utility model:

[0039] 3 steps to install the limit mechanism

[0040] First, align the limiting section 3011 of the positioning rod 301 of the limiting mechanism 3 with the corresponding positioning hole 2 on the support plate 1, insert the positioning rod 301 into the positioning hole 2, complete the initial installation and positioning, so that the positioning rod 301 plays a supporting role and builds a basic framework for the subsequent installation of components.

[0041] Next, the key components, such as cam 308, ratchet 307, and pawl 303, must be precisely installed onto the mating section 3013 of the positioning rod 301 using key connections, according to their specific mating relationships. For positioning rod I, cam 308 and ratchet 307 must first be properly positioned in their intended locations, followed by tightening the locking nut 306 on the screw 3014 to ensure it is securely fixed axially onto positioning rod I. Then, tighten the anti-loosening nut 305 to effectively prevent the locking nut 306 from loosening, thus ensuring the secure installation of cam 308 and ratchet 307.

[0042] Then, the two ends of the tension spring 311 are movably connected to the limiting rod 312 and the positioning rod II, respectively, to provide tension between the limiting rod 312 and the positioning rod II; at the same time, the compression spring 302 should be properly fitted on the outside of the mating section 3013 of the positioning rod II, and its two ends should be tightly abutted against the corresponding positioning section 3012 and the pawl 303, respectively, so as to ensure that the pawl 303 can accurately engage with the ratchet 307 under normal conditions.

[0043] Limiting steps for the workpiece

[0044] The workpiece to be processed is placed in the middle of the upper side of the support plate 1. Then, the cams 308 in each limiting mechanism 3 are rotated. The cams 308 change the constraint around the workpiece based on their own structural characteristics until the workpiece reaches the required accurate position. At this time, under the meshing action of the ratchet 307 and the pawl 303, the cams 308 cannot reverse, stably achieving the position constraint of the workpiece and ensuring that it will not be displaced during the processing.

[0045] Steps to release the limit

[0046] When it is necessary to release the limit of the workpiece to be processed, the operator manually presses down the pawl 303 to overcome the elastic force of the compression spring 302, so that the pawl 303 disengages from the ratchet 307. At this time, the cam 308 can freely reverse, thereby releasing the limit of the workpiece to be processed, making it convenient to remove the processed workpiece or adjust the tooling tray.

[0047] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tooling tray for a CNC machine tool, comprising a support plate (1), wherein the support plate (1) has a plurality of positioning holes (2) arranged in a rectangular array, characterized in that: It also includes a limiting mechanism (3), and there are multiple limiting mechanisms (3), which are arranged in a rectangular array around the workpiece to be processed; Each of the limiting mechanisms (3) includes two positioning rods (301) in the upper and lower axes, and the positioning rods (301) in each limiting mechanism (3) are inserted into the corresponding positioning holes (2); Each of the limiting mechanisms (3) further includes a cam (308) and a pawl (303), the cam (308) and the pawl (303) respectively correspond to a positioning rod (301), the cam (308) is keyed to the pawl (303) and the corresponding positioning rod (301), and a ratchet (307) is keyed to the positioning rod (301) corresponding to the cam (308), the ratchet (307) is engaged with the pawl (303); Each of the limiting mechanisms (3) further includes a limiting rod (312), and a tension spring (311) is provided between the limiting rod (312) and the positioning rod (301) corresponding to the pawl (303). The two axial ends of the tension spring (311) are movably connected to the corresponding limiting rod (312) and positioning rod (301) respectively.

2. The tooling tray for a CNC machine tool according to claim 1, characterized in that: Each of the positioning rods (301) includes a cylindrical limiting section (3011) which is inserted into the positioning hole (2). Furthermore, a horizontally polygonal mating section (3013) is coaxially fixedly connected to the upper side of the limiting section (3011). The mating section (3013) is connected to the corresponding cam (308), ratchet (307), and pawl (303).

3. The tooling tray for a CNC machine tool according to claim 2, characterized in that: Each of the limiting segments (3011) and the corresponding mating segment (3013) is further provided with a positioning segment (3012) with a disc-shaped structure, the projection of the positioning segment (3012) on the horizontal plane completely covering the projection of the mating segment (3013) on the horizontal plane; The positioning rod (301) that cooperates with the cam (308) is positioning rod I, and the positioning rod (301) that cooperates with the pawl (303) is positioning rod II. The upper side of the mating section (3013) of the positioning rod I is coaxially fixedly connected to a screw (3014), and a locking nut (306) is screwed onto the outside of the screw (3014). The cam (308) and the ratchet (307) are located between the locking nut (306) and the positioning section (3012).

4. The tooling tray for a CNC machine tool according to claim 3, characterized in that: An anti-loosening nut (305) is also screwed onto the outside of the screw (3014). The anti-loosening nut (305) is located on the upper side of the locking nut (306), and the anti-loosening nut (305) abuts against the locking nut (306).

5. A tooling tray for a CNC machine tool according to claim 3, characterized in that: The positioning rod II has a sliding groove (310) on its mating section (3013), a sliding rod (309) is inserted into the sliding groove (310), and a limiting tube (304) is provided on the outside of the sliding rod (309), and the upper end of the sliding rod (309) is fixedly connected to the inner cavity of the limiting tube (304). The projection of the inner cavity of the limiting tube (304) on the horizontal plane completely covers the projection of the mating section (3013) on the horizontal plane, and the lower end face of the limiting tube (304) abuts against the pawl (303). A compression spring (302) is sleeved on the outer side of the mating section (3013) of the positioning rod (301). The two axial ends of the compression spring (302) abut against the corresponding positioning section (3012) and pawl (303) respectively. When the compression spring (302) is not affected by external force, the pawl (303) and the ratchet (307) are on the same horizontal plane.

6. The tooling tray for a CNC machine tool according to claim 2, characterized in that: The projection of the mating segment (3013) on the horizontal plane is a regular polygon structure, and the cam (308), ratchet (307) and the corresponding mating segment (3013) are connected by sliding keys.

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