Feeding device for a die cutter

Abstract

The utility model relates to a feeding device technical field, concretely relates to a heart machine feeding device, include: conveying frame, two groups of elevating support, install in conveying frame bottom, drive mechanism, install in conveying frame bottom, its drive end connects push material rod, top mechanism, install in push material rod top, top mechanism includes: the top, one end of the top is provided with round adsorption cavity, the other end is provided with round working cavity, and the top cross section is H type, the interface for connecting vacuum equipment is installed to the adsorption cavity outer wall, two clamping grooves are arranged in the end face of working cavity, and two limit grooves are arranged in the axial inner wall of working cavity, the working cavity is arranged through the top end part and inserts the replaceable wear -resisting top disc, directly bears the material top pressure wear and tear, realizes partial replacement and avoids the overall top scrap, and the maintenance cost is greatly reduced, cooperation top and the adsorption hole that top disc one -to -one correspondence intercommunication make the vacuum adsorption force accurate effect on the material end face, and the fixed reliability is improved.

Description

Technical Field

[0001] This utility model relates to the field of feeding device technology, specifically a feeding device for a Swiss-type lathe. Background Technology

[0002] Swiss-type lathes, as a type of high-precision CNC lathes, adopt a layout with a moving spindle and fixed cutting tools. They can continuously process slender parts with a large length-to-diameter ratio. With their high efficiency and high precision, they are widely used in the field of precision machinery manufacturing. Their feeding device, as a core auxiliary component, is responsible for continuously and stably feeding the bar stock into the spindle. Common types of feeding machines include pneumatic feeding and servo feeding. Through automated control, the bar stock can be accurately pushed according to the processing progress, thereby reducing manual intervention and improving production efficiency.

[0003] As an important component of the feeding device, the mandrel is usually located at the rear end of the spindle or the end of the feeding channel. When the bar stock is fed in, it works with the spindle to axially position and support the bar stock, effectively preventing the slender bar stock from bending and deforming due to its own weight or cutting force, thereby ensuring the stability of the machining process and the accuracy of the parts. However, it still has some problems: 1) The mandrel of the traditional feeding device is an integral structure. When the material pressing end face is worn, the entire mandrel (including the drive connection parts) needs to be replaced, which is costly and has a long downtime; 2) Existing technology requires customized mandrels or adjustment mechanisms for different bar stock outer diameters, resulting in low switching efficiency. Therefore, in view of the above situation, it is urgent to develop a feeding device for Swiss-type lathes to overcome the shortcomings in current practical applications and meet current needs. Utility Model Content

[0004] The purpose of this invention is to provide a feeding device for a Swiss-type lathe to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a feeding device for a Swiss-type lathe, comprising:

[0006] Conveyor rack;

[0007] Two sets of lifting supports are installed at the bottom of the conveyor frame;

[0008] The drive mechanism is installed at the bottom of the conveyor frame, and its drive end is connected to the push rod.

[0009] The top-end mechanism is installed at the top of the push rod;

[0010] The top-end mechanism includes:

[0011] The top head has a circular adsorption cavity at one end and a circular working cavity at the other end, and the cross-section of the top head is H-shaped. The outer wall of the adsorption cavity is equipped with an interface for connecting to vacuum equipment. Two slots are opened on the end face of the working cavity, and two limiting slots are opened on the axial inner wall of the working cavity. Several adsorption holes a are opened through the middle of the top head to connect the adsorption cavity and the working cavity.

[0012] The top plate is a detachable disc that is embedded in the working cavity and fits against the inner wall. Several adsorption holes b are opened on the top plate, which correspond one-to-one with the position and diameter of the adsorption holes a. Two limiting blocks are fixed on the side of the top plate facing the top head, which cooperate with the limiting groove to limit the deflection of the top plate and ensure that the adsorption holes a and b are aligned.

[0013] A sealing ring is fitted between the working chamber and the top plate;

[0014] The insert is cylindrical and is embedded in the working cavity, closely attached to the top plate. The insert has an axial through hole with an inner diameter that matches the outer diameter of the bar stock to be processed. The insert has lugs at both ends, which are fitted into the slots and fixed with screws. A removable sealing gasket is provided on the contact surface between the insert and the top plate.

[0015] A sealing disc, embedded in the adsorption chamber, is used to seal the adsorption chamber.

[0016] The connecting seat is fixed to the suction chamber end of the top head by screws, and its end has a flange to connect to the push rod.

[0017] Specifically, the detachable wear-resistant top plate and the anti-deflection design with a limiting block not only solve the high cost problem of having to replace the entire top plate after wear, but also ensure precise alignment between adsorption hole a and adsorption hole b. With the replacement inserts and their through-hole size adaptation design, only the inserts need to be replaced to quickly adapt to bars of different outer diameters, significantly improving versatility. At the same time, the sealing ring, sealing gasket and sealing plate work together to ensure the vacuum seal of the adsorption chamber, so that the negative pressure introduced by the interface acts efficiently on the end face of the bar, which reduces maintenance costs and enhances feeding stability.

[0018] Preferably, the top plate is made of hard alloy or ceramic wear-resistant material.

[0019] Specifically, its ultra-high hardness significantly improves its resistance to impact and wear, extending the life of the top plate. At the same time, the high rigidity material ensures a precise fit with the working cavity, and the sealing ring maintains long-term vacuum sealing stability. Moreover, the replacement cost of a single part is only 15%-20% of the overall top plate. The ceramic material also has the characteristics of being resistant to coolant corrosion, expanding the applicability of wet processing.

[0020] Preferably, the inner diameter of the through hole of the insert is 0.05-0.3 mm larger than the outer diameter of the bar stock to be processed.

[0021] Specifically, this precision tolerance design avoids cold expansion jamming of the bar stock by minimizing the gap, while accommodating machining vibration offset by maximizing the gap. At the same time, it ensures that the vacuum adsorption force is effectively applied to the end face of the bar stock through the adsorption hole b, taking into account both feeding smoothness and positioning stability, reducing the risk of abnormal wear on the inner wall of the insert, and extending its service life.

[0022] Preferably, the sealing ring covers the adsorption hole b in the contact area between the insert and the top plate.

[0023] Specifically, by selectively sealing the adsorption holes b that are blocked by the insert, the ineffective negative pressure leakage channels in that area are eliminated, so that the vacuum adsorption force is concentrated on the effective contact area of ​​the bar stock.

[0024] Preferably, the adsorption pores a and b are evenly distributed along the circumference.

[0025] Specifically, the evenly distributed holes are adapted to bars of different diameters, so that the vacuum adsorption force always acts evenly on the effective contact area of ​​the bar, avoiding the increased wear of the top plate caused by local stress concentration, and improving the dynamic balance under high-speed feeding conditions.

[0026] Preferably, the interface is a quick-change pneumatic connector.

[0027] Preferably, the clearance between the limiting block and the limiting groove is less than 0.1 mm.

[0028] Compared with the prior art, this utility model provides a feeding device for a Swiss-type headstock machine, which has the following advantages:

[0029] By opening a working chamber at the end of the mandrel and embedding a replaceable wear-resistant top plate, the mandrel directly bears the pressure and wear of the material, enabling partial replacement and avoiding the scrapping of the entire mandrel, thus significantly reducing maintenance costs. Combined with the adsorption holes on the mandrel and top plate that correspond one-to-one, the vacuum adsorption force is precisely applied to the material end face, improving fixing reliability. Simultaneously, utilizing the structure of the working chamber connecting the slots, inserts with matching through-hole sizes are embedded. The material is pressed against the top plate through the through-holes of the inserts, and only the inserts need to be replaced to quickly adapt to different material specifications, significantly enhancing the equipment's versatility. This forms a three-in-one efficient feeding solution: wear-resistant top plate for anti-wear + vacuum adsorption for stable fixing + insert type change for expanded compatibility. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0032] Figure 2 This is a side longitudinal sectional view of the entire utility model;

[0033] Figure 3 This is a schematic diagram of the top mechanism of this utility model;

[0034] Figure 4 This is one of the exploded views of the top mechanism of this utility model;

[0035] Figure 5 This is the second exploded view of the top mechanism of this utility model;

[0036] Figure 6 This is one of the partial cross-sectional views of the top mechanism of this utility model;

[0037] Figure 7 This is the second partial cross-sectional view of the top mechanism of this utility model;

[0038] Figure 8 This is a schematic diagram of the top structure of this utility model;

[0039] Figure 9 This is a schematic diagram of the top plate structure of this utility model.

[0040] In the diagram: 10, conveyor frame; 20, lifting support; 30, drive mechanism; 310, push rod; 40, top head mechanism; 410, top head; 411, adsorption chamber; 412, interface; 413, working chamber; 414, limiting groove; 415, slot; 416, adsorption hole a; 420, top plate; 421, adsorption hole b; 422, limiting block; 430, sealing ring; 440, insert; 441, ear seat; 450, sealing disc; 460, connecting seat. Detailed Implementation

[0041] 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.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] Example:

[0044] Please see Figures 1-9 This utility model provides a technical solution: a feeding device for a Swiss-type lathe, comprising:

[0045] Conveyor frame 10;

[0046] Two sets of lifting supports 20 are installed at the bottom of the conveyor frame 10;

[0047] The drive mechanism 30 is installed at the bottom of the conveyor frame 10, and its drive end is connected to the push rod 310.

[0048] The top mechanism 40 is installed at the top of the push rod 310;

[0049] The top mechanism 40 includes:

[0050] The top head 410 has a circular adsorption cavity 411 at one end and a circular working cavity 413 at the other end. The cross-section of the top head 410 is H-shaped. An interface 412 for connecting to vacuum equipment is installed on the outer wall of the adsorption cavity 411. Two slots 415 are opened on the end face of the working cavity 413, and two limiting grooves 414 are opened on the axial inner wall of the working cavity 413. Several adsorption holes a416 are opened through the middle of the top head 410 to connect the adsorption cavity 411 and the working cavity 413.

[0051] The top plate 420 is a detachable disc that is embedded in the working cavity 413 and fits against the inner wall. Several adsorption holes b421 are opened on the top plate 420, which correspond one by one with the position and diameter of the adsorption holes a416. Two limiting blocks 422 are fixed on the side of the top plate 420 facing the top head 410, which cooperate with the limiting groove 414 to limit the deflection of the top plate 420 and ensure that the adsorption holes a416 and b421 are aligned.

[0052] A sealing ring 430 is fitted between the working chamber 413 and the top plate 420;

[0053] The insert 440 is a cylinder that is embedded in the working cavity 413 and closely attached to the top plate 420. The insert 440 has an axial through hole with an inner diameter that matches the outer diameter of the bar to be processed. The insert 440 has lugs 441 at both ends that fit into the slots 415 and are fixed by screws. A removable sealing gasket is provided on the contact surface between the insert 440 and the top plate 420.

[0054] A sealing disc 450 is embedded in the adsorption chamber 411 to seal the adsorption chamber 411.

[0055] The connecting seat 460 is fixed to the adsorption cavity 411 end of the top head 410 by screws, and its end has a flange to connect to the push rod 310.

[0056] Specifically, the detachable wear-resistant top plate 420 and the anti-deflection design with limit block 422 not only solve the high cost problem of having to replace the entire top head 410 after the end face is worn, but also ensure that the adsorption hole a416 and the adsorption hole b421 are precisely aligned. With the replaceable insert 440 and its through hole size adaptation design, only the insert 440 needs to be replaced to quickly adapt to bars with different outer diameters, significantly improving versatility. At the same time, the sealing ring 430, sealing gasket and sealing plate 450 work together to ensure the vacuum sealing of the adsorption chamber 411, so that the negative pressure introduced by the interface 412 can be effectively applied to the end face of the bar, which reduces maintenance costs and enhances feeding stability.

[0057] Preferably, the top plate 420 is made of hard alloy or ceramic wear-resistant material.

[0058] Specifically, its ultra-high hardness significantly improves its impact and wear resistance, extending the life of the top plate 420. At the same time, the high rigidity material ensures a precise fit with the working cavity 413, and the sealing ring 430 maintains long-term vacuum sealing stability. Moreover, the replacement cost of a single part is only 15%-20% of that of the overall top head 410. The ceramic material also has the characteristics of being resistant to coolant corrosion, expanding the applicability of wet processing.

[0059] Preferably, the inner diameter of the through hole of the insert 440 is 0.05-0.3 mm larger than the outer diameter of the bar stock to be processed.

[0060] Specifically, this precision tolerance design avoids cold expansion jamming of the bar stock by minimizing the gap, while accommodating machining vibration offset by maximizing the gap. At the same time, it ensures that the vacuum adsorption force is effectively applied to the end face of the bar stock through the adsorption hole b421, taking into account both feeding smoothness and positioning stability, reducing the risk of abnormal wear on the inner wall of the insert 440, and extending its service life.

[0061] Preferably, the sealing ring 430 covers the adsorption hole b421 in the contact area between the insert 440 and the top plate 420.

[0062] Specifically, by selectively sealing the adsorption hole b421 that is blocked by the insert 440, the ineffective negative pressure leakage channel in this area is eliminated, so that the vacuum adsorption force is concentrated on the effective contact area of ​​the bar stock.

[0063] Preferably, the adsorption pores a416 and b421 are evenly distributed along the circumference.

[0064] Specifically, the evenly distributed holes are adapted to bars of different diameters, so that the vacuum adsorption force is always applied evenly to the effective contact area of ​​the bar, avoiding the increased wear of the top plate 420 caused by local stress concentration, and improving the dynamic balance under high-speed feeding conditions.

[0065] Preferably, interface 412 is a quick-change pneumatic connector.

[0066] Preferably, the fitting clearance between the limiting block 422 and the limiting groove 414 is less than 0.1 mm.

[0067] Working principle: The drive mechanism 30 pushes the push rod 310 axially, driving the top head mechanism 40 forward; after the bar to be processed passes through the through hole of the insert 440, its end face is tightly attached to the wear-resistant top plate 420; at this time, the vacuum equipment supplies negative pressure to the adsorption chamber 411 through the interface 412, and the negative pressure passes through the adsorption hole a416 and the adsorption hole b421 of the top plate 420 in sequence, adsorbing and fixing the end face of the bar to the surface of the top plate 420; when the push rod 310 continuously applies force, the bar is stably conveyed under the radial constraint of the through hole of the insert 440 and the axial fixation of the vacuum adsorption, while the wear-resistant top plate 420 directly bears the top pressure of the bar; when changing the bar specification, it is only necessary to remove the insert 440 and replace it with an insert 440 with the corresponding through hole diameter, and ensure that the top plate 420 is accurately positioned by the limiting block 422 and the limiting groove 414, so that the adsorption hole a416 and the adsorption hole b421 are always aligned and connected.

[0068] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A feeding device for a Swiss Army corset, characterized in that, include: Conveyor frame (10); Two sets of lifting supports (20) are installed at the bottom of the conveyor frame (10); The drive mechanism (30) is installed at the bottom of the conveyor frame (10), and its drive end is connected to the push rod (310). The top mechanism (40) is installed at the top of the push rod (310); The top-mounted mechanism (40) includes: The top head (410) has a circular adsorption cavity (411) at one end and a circular working cavity (413) at the other end. The top head (410) has an H-shaped cross-section. The outer wall of the adsorption cavity (411) is equipped with an interface (412) for connecting to a vacuum device. The end face of the working cavity (413) has two slots (415). The axial inner wall of the working cavity (413) has two limiting slots (414). The top head (410) has several adsorption holes a (416) through the middle, connecting the adsorption cavity (411) and the working cavity (413). The top plate (420) is a detachable disc, which is embedded in the working cavity (413) and fits against the inner wall; the top plate (420) has a plurality of adsorption holes b (421) that correspond one-to-one with the position and diameter of the adsorption holes a (416); two limiting blocks (422) are fixed on the side of the top plate (420) facing the top head (410), which cooperate with the limiting groove (414) to limit the deflection of the top plate (420) and ensure that the adsorption holes a (416) and b (421) are aligned; A sealing ring (430) is fitted between the working cavity (413) and the top plate (420); The insert (440) is a cylinder that is embedded in the working cavity (413) and closely attached to the top plate (420). The insert (440) has an axial through hole with an inner diameter that matches the outer diameter of the bar to be processed. The insert (440) has lugs (441) at both ends that fit into the slots (415) and are fixed with screws. The contact surface between the insert (440) and the top plate (420) is provided with a removable sealing gasket. A sealing disc (450) is embedded in the adsorption chamber (411) for sealing the adsorption chamber (411); The connecting seat (460) is fixed to the adsorption chamber (411) end of the top head (410) by screws, and its end has a flange to connect to the push rod (310).

2. The feeding device for a Swiss Army corset according to claim 1, characterized in that: The top plate (420) is made of hard alloy or ceramic wear-resistant material.

3. The feeding device for a Swiss Army corset according to claim 1, characterized in that: The inner diameter of the through hole of the insert (440) is 0.05-0.3 mm larger than the outer diameter of the bar stock to be processed.

4. The feeding device for a Swiss Army corset according to claim 1, characterized in that: The sealing ring (430) covers the adsorption hole b (421) in the contact area between the insert (440) and the top plate (420).

5. The feeding device for a Swiss Army corset according to claim 1, characterized in that: The adsorption pores a (416) and b (421) are evenly distributed along the circumference.

6. The feeding device for a Swiss Army corset according to claim 1, characterized in that: The interface (412) is a quick-change pneumatic connector.

7. The feeding device for a Swiss Army corset according to claim 1, characterized in that: The clearance between the limiting block (422) and the limiting groove (414) is less than 0.1 mm.

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