Auxiliary clamp of cutting machine for machining
By designing an auxiliary fixture with adjustable clamping force and a cooling and lubrication system, the problem of traditional fixtures being unable to adapt to different workpieces is solved, the cutting accuracy and blade life are improved, and the impact of thermal deformation is reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 广东广冶科技有限公司
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-05
AI Technical Summary
Traditional clamps have non-adjustable clamping force, making it difficult to adapt to workpieces of different thicknesses and materials. This leads to easy displacement of the workpiece during the cutting process, affecting cutting accuracy and quality. At the same time, the heat generated during cutting reduces blade life and causes workpiece deformation.
An auxiliary fixture was designed, comprising a fixed frame, a support rod, a workpiece clamping block, a limiting ring, and a spring. The clamping force is adjusted by the cooperation of the limiting ring and the spring. Combined with a cooling tank and a lubrication system, it can adapt to the needs of different workpieces, and the heat impact is reduced by cooling and lubrication.
It achieves stable clamping of workpieces of different thicknesses and materials, improves cutting accuracy, extends blade life, reduces workpiece deformation, and improves cutting efficiency and fixture stability.
Smart Images
Figure CN224196452U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical cutting and processing technology, specifically to an auxiliary fixture for a cutting machine used in mechanical processing. Background Technology
[0002] In the field of machining, cutting machines are a common processing method for cutting various workpieces. However, stable clamping of the workpiece is crucial during the cutting process. Traditional clamps often have problems such as non-adjustable clamping force, making it difficult to adapt to workpieces of different thicknesses and materials. This can lead to workpiece displacement during the cutting process, affecting cutting accuracy and quality. At the same time, the large amount of heat generated during the cutting process can raise the temperature of the cutting blade and the workpiece, which not only reduces the life of the blade but may also cause workpiece deformation, affecting machining accuracy. Summary of the Invention
[0003] The purpose of this utility model is to provide an auxiliary fixture for a cutting machine used in machining, so as to solve the problem mentioned in the background art that traditional fixtures often have unadjustable clamping force, making it difficult to adapt to workpieces of different thicknesses and materials, which leads to the workpiece being easily displaced during the cutting process, affecting the cutting accuracy and quality.
[0004] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary fixture for a cutting machine for machining, including a fixed frame, the fixed frame being welded and installed on the left and right sides of an external cutting machine, a support rod being inserted and installed in each of the two fixed frames, and a workpiece clamping block being installed at the lower end of the support rod, the workpiece clamping block being able to clamp the workpiece with the external worktable;
[0005] The workpiece pressing block includes a sleeve, a connecting plate, a pressure plate, a limiting ring, and a spring. The upper wall of the connecting plate is fitted with a sleeve, which is sleeved on the outside of the support rod. The lower wall of the connecting plate is fitted with a pressure plate, which can press against the external workpiece. The outside of the sleeve is fitted with a spring. The outside of the support rod is fitted with a limiting ring. The upper end of the spring is in contact with the lower wall of the limiting ring, and its lower end is in contact with the upper wall of the connecting plate.
[0006] As a preferred embodiment of this utility model, the limiting ring is an annular structure with an internal thread on its inner ring wall and an external thread on the outer side of the support rod. The limiting ring is connected to the support rod through a threaded pair, and at least three adjustment planes are evenly distributed on the outer circumference of the limiting ring. The adjustment planes are adapted to external wrench tools.
[0007] As a preferred embodiment of this utility model, the inner cavity of the pressure plate is provided with at least two cooling grooves. The cooling grooves are rectangular cross-section grooves. One end of the cooling groove is connected to a liquid inlet, and the other end is connected to a liquid outlet. The liquid inlet is connected to an external coolant circulation system through a hose, and the liquid outlet corresponds to the cutting blade of an external cutting machine.
[0008] As a preferred embodiment of this utility model, the outer wall of the support rod is welded with a reinforcing rib, and the upper wall of the reinforcing rib is welded to the lower wall of the fixing frame.
[0009] As a preferred embodiment of this utility model, the inner wall of the sleeve is provided with an annular oil groove, the outer wall of the sleeve is provided with an oil injection hole communicating with the annular oil groove, the oil injection hole is internally threaded with a sealing plug, and the annular oil groove is filled with lithium-based grease.
[0010] As a preferred embodiment of this utility model, the lower surface of the connecting plate is provided with a slot, the upper surface of the pressure plate is provided with a block, the block can slide with the slot, a positioning pin is inserted into the upper wall of the connecting plate, and a positioning groove is opened on the upper wall of the block, the positioning pin can be inserted into the slot.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] This device, through the cooperation of a limiting ring and a spring, can flexibly adjust the clamping force according to the actual situation of the workpiece, ensuring stable clamping of workpieces of different thicknesses and materials, and improving cutting accuracy. At the same time, the cooling tank in the pressure plate is connected to the coolant circulation system, which can effectively remove the heat generated during the cutting process. Its liquid outlet corresponds to the cutting position, which can accurately cool the cutting blade, reduce thermal deformation, and extend the blade's service life.
[0013] In addition, the design of the annular oil groove inside the sleeve can reduce friction between parts by filling it with lubricating grease, thereby improving the working stability and service life of the fixture. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this patent;
[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the workpiece pressure block in this patent.
[0016] Figure 3 This is a schematic diagram of the workpiece pressing block structure of this patent.
[0017] In the diagram: 1. Fixing frame, 2. Support rod, 3. Workpiece pressure block, 31. Sleeve, 32. Connecting plate, 33. Pressure plate, 34. Limiting ring, 35. Spring, 4. Adjusting plane, 5. Cooling tank, 6. Liquid inlet, 7. Liquid outlet, 8. Reinforcing rib, 9. Annular oil groove, 10. Oil injection hole, 11. Sealing plug, 12. Slot, 13. Block, 14. Positioning pin, 15. Positioning groove. 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] Please see Figure 1-3 This utility model provides a technical solution:
[0020] In this technical solution, an auxiliary fixture for a cutting machine for machining includes a fixed frame 1. The fixed frame 1 is welded and installed on the left and right sides of the external cutting machine. The fixed frame 1 serves as the connection base between the entire fixture and the external cutting machine. It is firmly installed on both sides of the cutting machine by welding to ensure that the fixture will not shift during operation and to provide stable support for subsequent workpiece clamping. Support rods 2 are inserted and installed in both fixed frames 1. Workpiece pressure blocks 3 are installed at the lower end of the support rods 2. The workpiece pressure blocks 3 and the external worktable can clamp the workpiece.
[0021] The workpiece clamping block 3 includes a sleeve 31, a connecting plate 32, a pressure plate 33, a limiting ring 34, and a spring 35. The upper wall of the connecting plate 32 is fitted with a sleeve 31, which is sleeved on the outside of the support rod 2. The sleeve 31 provides guidance and support for the connecting plate 32, ensuring that the connecting plate 32 can move stably along the support rod 2. The lower wall of the connecting plate 32 is fitted with a pressure plate 33, which can press on the external workpiece. The pressure plate 33 is in direct contact with the workpiece and is used to press the workpiece. Its shape and size can be designed according to the needs of different workpieces to achieve a better clamping effect. The outer side of the sleeve 31 is fitted with a spring 35. The outer side of the support rod 2 is fitted with a limiting ring 34. The upper end of the spring 35 is in contact with the lower wall of the limiting ring 34, and its lower end is in contact with the upper wall of the connecting plate 32.
[0022] In this technical solution, support rods 2 are inserted into two symmetrically arranged fixing frames 1, so that the support rods 2 support the workpiece pressure block 3. The workpiece pressure block 3 and the external worktable form a clamping space. Through the cooperation of the two, the workpiece can be stably fixed, avoiding the decrease in cutting accuracy or safety accidents caused by workpiece shaking during the cutting process. The spring 35 is sleeved on the outside of the sleeve 31, with one end close to the limiting ring 34 and the other end close to the connecting plate 32, forming an elastic clamping structure. When the workpiece is placed, the spring 35 is compressed to generate elastic force, so that the pressure plate 33 can press tightly on the workpiece, realizing the stable clamping of the workpiece. At the same time, the elasticity of the spring 35 can also adapt to the unevenness of the workpiece surface to a certain extent, avoiding damage to the workpiece due to excessive pressure. The limiting ring 34 is installed on the outside of the support rod 2 to limit the compression stroke of the spring 35. By adjusting the position of the limiting ring 34, the initial compression of the spring 35 can be changed, thereby adjusting the clamping force to meet the clamping requirements of workpieces of different materials and thicknesses.
[0023] In some technical solutions, the limiting ring 34 is a ring structure with an internal thread on its inner ring wall and an external thread on the outer side of the support rod 2. The limiting ring 34 is connected to the support rod 2 through a threaded pair, and at least three adjustment planes 4 are evenly distributed on the outer circumference of the limiting ring 34. The adjustment planes 4 are adapted to external wrench tools.
[0024] In this technical solution, the limiting ring 34 adopts a ring structure design. The internal thread of the inner ring wall and the external thread of the support rod 2 cooperate with each other to form a threaded connection structure. This connection method allows the limiting ring 34 to move and be fixed precisely on the support rod 2. By rotating the limiting ring 34 and changing its position on the support rod 2, the compression degree of the spring 35 can be adjusted, thereby achieving flexible adjustment of the clamping force. The adjustment planes 4 evenly distributed on the outer circumference are for convenient operation with external wrenches. The operator can easily rotate the limiting ring 34 by holding the adjustment plane 4 with a wrench. This not only improves the convenience of adjustment but also ensures that the limiting ring 34 is evenly stressed during the adjustment process, avoiding jamming or loosening. This ensures the accuracy and stability of the clamping force adjustment, enabling the fixture to adapt to the clamping requirements of different workpieces under various complex working conditions.
[0025] In some technical solutions, the inner cavity of the pressure plate 33 is provided with at least two cooling grooves 5. The cooling grooves 5 are rectangular cross-section grooves. One end of the cooling groove 5 is connected to the liquid inlet 6, and the other end is connected to the liquid outlet 7. The liquid inlet 6 is connected to the external coolant circulation system through a hose, and the liquid outlet 7 corresponds to the cutting blade of the external cutting machine.
[0026] In this technical solution, the cooling tank 5 inside the pressure plate 33 is the key structure for achieving the cooling function. The rectangular cross-section design of the tank ensures smooth flow of coolant within the tank and provides a large heat dissipation area, improving cooling efficiency. The inlet 6 is connected to the external coolant circulation system via a hose, ensuring a continuous flow of coolant into the cooling tank 5. When the cutting machine is working, the friction between the cutting blade and the workpiece generates a large amount of heat. At this time, the coolant enters the cooling tank 5 from the inlet 6, absorbs heat during its flow within the tank, and is then sprayed out from the outlet 7 corresponding to the cutting blade, directly acting on the cutting area to cool and lubricate the cutting blade and the workpiece. This not only reduces the temperature of the cutting blade, minimizing wear and deformation due to high temperatures and extending the blade's lifespan, but also prevents workpiece deformation due to heat, ensuring the accuracy of the cutting dimensions. Simultaneously, the lubricating effect of the coolant reduces cutting resistance and improves cutting efficiency.
[0027] In some technical solutions, the outer wall of the support rod 2 is welded with a reinforcing rib 8, and the upper wall of the reinforcing rib 8 is welded to the lower wall of the fixing frame 1.
[0028] In this technical solution, the addition of reinforcing rib 8 greatly enhances the connection strength between the support rod 2 and the fixing frame 1.
[0029] In some technical solutions, the inner wall of the sleeve 31 is provided with an annular oil groove 9, and the outer wall of the sleeve 31 is provided with an oil injection hole 10 that communicates with the annular oil groove 9. The oil injection hole 10 is internally threaded with a sealing plug 11, and the annular oil groove 9 is filled with lithium-based grease.
[0030] In this technical solution, the annular oil groove 9 on the inner wall of the sleeve 31 is the core part of the lubrication system. Its function is to store and distribute lithium-based grease. The lithium-based grease has good water resistance, mechanical stability and high temperature stability, and can provide long-lasting and effective lubrication for the mating surfaces of the sleeve 31 and the support rod 2 under various harsh working conditions. The oil filling hole 10 is connected to the annular oil groove 9. By unscrewing the sealing plug 11, grease can be easily added to the annular oil groove 9 to ensure the continuous and effective operation of the lubrication system.
[0031] When the support rod 2 moves up and down inside the sleeve 31, the grease in the annular oil groove 9 will be evenly distributed on the contact surface of the two, forming a lubricating film, which effectively reduces frictional resistance, reduces wear between parts, and improves the motion accuracy and working stability of the fixture. At the same time, the sealing plug 11 can prevent dust, debris and other impurities from entering the annular oil groove 9, avoid the influence of impurities on the performance of the grease, ensure the lubrication effect, extend the service life of the sleeve 31 and the support rod 2, and reduce the maintenance frequency and maintenance cost of the equipment.
[0032] Grease is different from lubricating oil and will not interfere with the movement of support rod 2.
[0033] In this article, the sealing plug 11 is a rubber plug with threads on the outside, which can be matched with the threads on the inside of the oil injection hole 10 to seal the oil injection hole 10.
[0034] In some technical solutions, the lower surface of the connecting plate 32 is provided with a slot 12, the upper surface of the pressure plate 33 is provided with a block 13, the block 13 can slide with the slot 12, the upper wall of the connecting plate 32 is inserted with a positioning pin 14, and the upper wall of the block 13 is provided with a positioning groove 15, into which the positioning pin 14 can be inserted.
[0035] In this technical solution, the sliding fit design of the slot 12 and the block 13 allows the pressure plate 33 to be easily installed onto the connecting plate 32, achieving rapid assembly. During installation, simply align the block 13 with the slot 12 and slide it along the slot direction to initially fix the pressure plate 33 onto the connecting plate 32;
[0036] The cooperation between the positioning pin 14 and the positioning groove 15 serves to further position and fasten the device. When the locking block 13 slides into the locking groove 12, the positioning pin 14 is inserted into the positioning groove 15, which can effectively prevent the pressure plate 33 from shifting or rotating during operation, ensuring the reliability of the connection between the pressure plate 33 and the connecting plate 32. This detachable connection method has many advantages. On the one hand, when the pressure plate 33 is worn or damaged due to long-term use, it can be quickly disassembled and replaced with a new pressure plate 33, reducing maintenance time and costs. On the other hand, different types of pressure plates 33 can be easily replaced according to the shape, size and processing requirements of different workpieces, improving the versatility and adaptability of the fixture and meeting diverse machining needs.
[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0038] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. An auxiliary fixture for a cutting machine used in machining, comprising a fixed frame (1), characterized in that: The fixed frame (1) is welded and installed on the left and right sides of the external cutting machine. Support rods (2) are inserted and installed in both fixed frames (1). Workpiece pressure blocks (3) are installed at the lower end of the support rods (2). The workpiece pressure blocks (3) and the external worktable can clamp the workpiece. The workpiece pressing block (3) includes a sleeve (31), a connecting plate (32), a pressure plate (33), a limiting ring (34), and a spring (35). The upper wall of the connecting plate (32) is fitted with a sleeve (31), which is sleeved on the outside of the support rod (2). The lower wall of the connecting plate (32) is fitted with a pressure plate (33), which can press on the external workpiece. The outer side of the sleeve (31) is fitted with a spring (35). The outer side of the support rod (2) is fitted with a limiting ring (34). The upper end of the spring (35) is in contact with the lower wall of the limiting ring (34), and its lower end is in contact with the upper wall of the connecting plate (32).
2. The auxiliary fixture for a cutting machine for machining according to claim 1, characterized in that: The limiting ring (34) is an annular structure with an internal thread on its inner ring wall and an external thread on the outer side of the support rod (2). The limiting ring (34) is connected to the support rod (2) through a threaded pair, and at least three adjustment planes (4) are evenly distributed on the outer circumference of the limiting ring (34). The adjustment planes (4) are adapted to external wrench tools.
3. The auxiliary fixture for a cutting machine for machining according to claim 1, characterized in that: The inner cavity of the pressure plate (33) is provided with at least two cooling grooves (5). The cooling grooves (5) are rectangular cross-section grooves. One end of the cooling groove (5) is connected to the liquid inlet (6) and the other end is connected to the liquid outlet (7). The liquid inlet (6) is connected to the external coolant circulation system through a hose, and the liquid outlet (7) corresponds to the cutting blade of the external cutting machine.
4. The auxiliary fixture for a cutting machine for machining according to claim 1, characterized in that: The outer wall of the support rod (2) is welded with a reinforcing rib (8), and the upper wall of the reinforcing rib (8) is welded to the lower wall of the fixing frame (1).
5. The auxiliary fixture for a cutting machine for machining according to claim 1, characterized in that: The inner wall of the sleeve (31) is provided with an annular oil groove (9), and the outer wall of the sleeve (31) is provided with an oil injection hole (10) communicating with the annular oil groove (9). A sealing plug (11) is threaded into the oil injection hole (10), and the annular oil groove (9) is filled with lithium-based grease.
6. The auxiliary fixture for a cutting machine for machining according to claim 1, characterized in that: The lower surface of the connecting plate (32) is provided with a slot (12), and the upper surface of the pressure plate (33) is provided with a block (13). The block (13) can slide with the slot (12). A positioning pin (14) is inserted into the upper wall of the connecting plate (32). A positioning groove (15) is opened on the upper wall of the block (13), and the positioning pin (14) can be inserted into the positioning groove (15).