Spring chuck for seat ring

Abstract

The utility model relates to the technical field of seat ring collet chucks, in particular to a seat ring collet chuck which comprises a collet chuck body, the collet chuck body is of a conical structure, a through groove is formed in the collet chuck body, and branch grooves are evenly formed in the outer circumferential wall of the collet chuck body in a trisection mode. A rib connecting groove is formed in the outer wall of the collet chuck body between the two branch grooves, a positioning ring is arranged on the inner circumferential wall of the side, away from the chuck end of the collet chuck body, of the through groove, and the positioning ring is used for positioning the tool bits to be installed at the same height; the seat ring spring chuck is not prone to deformation, high in product clamping reliability, lasting in elasticity, long in service life, high in strength, high in toughness, good in abrasion resistance and suitable for manufacturing mechanical parts needing to bear large pressure, and the positioning ring is arranged on the inner circumferential wall of the side, away from the chuck end, of the through groove and used for positioning a tool bit to be installed at the same height. The machining precision is improved, the consistency of the installation depth of the tool bit is ensured, and breakage caused by uneven stress of the tool bit is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to seat circle spring chuck technical field, specifically is a seat circle spring chuck. BACKGROUND

[0002] The seat circle spring chuck is a kind of clamping device for machining, mainly used to fix workpiece on machine tool. It clamps or loosens workpiece by spring force, with the characteristics of quick replacement and adjustment.

[0003] Powder metallurgy valve seat circle needs to be machined, such as ground and turned, after pressing and sintering, and turned processing needs to use spring chuck to clamp seat circle product. Traditional seat circle spring chuck has the problems of unstable clamping, runout, dropping phenomenon and low service life, and the installation depth of tool bit is inconsistent, prone to force fracture, high cost and low efficiency. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a seat circle spring chuck to solve the problems in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A seat circle spring chuck, comprising a spring chuck body, the spring chuck body is arranged in a conical structure, a through slot is formed in the spring chuck body, three equidistantly divided slots are formed on the outer circumferential wall of the spring chuck body, a connecting rib slot is formed on the outer wall of the spring chuck body between the two slots, and the rib slot ensures that the spring chuck body is an integral whole.

[0007] As a preferred scheme of the utility model, a positioning ring is arranged on the inner circumferential wall of the side of the spring chuck body away from the chuck end, and the positioning ring is used to position the tool bit at the same height.

[0008] As a preferred scheme of the utility model, the spring chuck body is made of 65Mn, and the quenching hardness is 60-62HRC.

[0009] As a preferred scheme of the utility model, the three equidistantly divided slots are 20mm*40mm.

[0010] As a preferred scheme of the utility model, the connecting rib slot is 3mm, and 3-4mm connecting rib is left between the end face of the connecting rib slot and the spring chuck body, so that the chuck body is in an integral state.

[0011] As a preferred scheme of the utility model, the diameter of the inner circumferential wall of the positioning ring is less than the diameter of the shank end of the tool bit.

[0012] As the preferred scheme of the utility model, the outer circumferential wall of the spring collet body is further provided with anti-skid lines.

[0013] As the preferred scheme of the utility model, the depth of the through groove is 50mm.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] In view of the problems in the background art, the seat ring spring collet is not easy to deform, has high product clamping reliability, and has long service life of elastic force;

[0016] The material and technology are adopted, have high strength, high toughness and good wear resistance, and are suitable for manufacturing mechanical parts needing to bear large pressure;

[0017] The inner circumferential wall of the through groove away from the collet end side is provided with a positioning ring, which is used for positioning the tool bit to be installed at the same height, the design improves the machining precision, ensures the consistency of the tool bit, and prevents the tool bit from being broken due to uneven stress;

[0018] The spring collet body is made of 65Mn and is quenched, and the hardness reaches 60-62HRC, so that the material and heat treatment process provide excellent wear resistance and fatigue resistance, and the service life of the collet is prolonged;

[0019] The depth of the through groove is 50mm, which can ensure that the tool bit has sufficient insertion length in the collet, thereby providing stable clamping force and machining precision;

[0020] The web groove is 3mm, and the web groove end face and the spring collet body leave a 3-4mm web, which ensures the integrity of the collet and avoids affecting the flexibility and strength of the collet due to the thick web.

[0021] The utility model will be explained in detail in combination with the drawings and specific embodiments. DRAWINGS

[0022] Figure 1 It is the spring collet body and the mounting perspective view of the holder of the utility model;

[0023] Figure 2 It is the side broken view of the spring collet body of the utility model;

[0024] Figure 3 It is the side view of the spring collet body of the utility model;

[0025] Figure 4 It is the front view of the spring collet body of the utility model.

[0026] In the figure: 1, spring collet body; 11, through slot; 12, sub-slot; 13, positioning ring. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the utility model are given in the drawings, but the utility model can be realized by different forms and is not limited to the embodiments described in the text, on the contrary, these embodiments are provided to make the disclosed content of the utility model more thorough and comprehensive. EMBODIMENT

[0028] Please refer to Figures 1-4 The utility model provides a technical scheme: a seat ring spring collet, including spring collet body 1, spring collet body 1 is set up in conical structure, spring collet body 1 adopts 65Mn as a whole, quenching hardness 60-62HRC, spring collet body 1 is internally provided with through slot 11, and the depth of through slot 11 is 50mm, and the outer circumferential wall of spring collet body 1 is evenly provided with sub-slot 12 in three equal parts, and the three equal parts sub-slot 12 are 20mm*40mm, and the outer wall of spring collet body 1 between two sub-slots 12 is provided with a connecting rib groove, and the rib groove ensures that spring collet body 1 is a whole, and the outer circumferential wall of spring collet body 1 is also provided with anti-skid lines, and the inner circumferential wall of the side of the through slot 11 away from the collet end of spring collet body 1 is provided with positioning ring 13, and positioning ring 13 is used to position the tool bit to be installed at the same height, the connecting rib groove is 3mm, and 3-4mm connecting rib is left between the end face of the connecting rib groove and spring collet body 1, which is used to make the collet body be in a whole state, and the inner circumferential wall diameter of positioning ring 13 is less than the shank end diameter of the tool bit.

[0029] It should be noted that, in the embodiment, spring collet body 1 is set up in conical structure, which can provide better mechanical properties and stability, and the conical structure helps to disperse the clamping force and reduce stress concentration, thereby improving the service life and reliability of the collet.

[0030] The outer circumferential wall is evenly provided with sub-slot 12 in three equal parts, so that the collet is more flexible during clamping and loosening, and at the same time, enough strength is maintained, and the design of the sub-slot also helps to improve the adaptability of the collet, so that it can adapt to workpieces of different shapes and sizes, and the three equal parts sub-slot 12 are 20mm*40mm, which considers the strength and flexibility of the collet, so that it can maintain structural integrity while providing enough opening space to adapt to workpieces of different sizes.

[0031] The outer wall of spring collet body 1 between two sub-slots 12 is provided with a connecting rib groove, and these rib grooves ensure that the collet body is a whole, thereby enhancing the structural integrity and durability of the collet.

[0032] The positioning ring 13 is arranged on the inner circumferential wall of the through slot 11 away from the chuck end, and the depth of the through slot 11 is 50 mm, which can ensure that the tool head has sufficient insertion length in the chuck, thereby providing stable clamping force and machining accuracy, and the tool head is installed at the same height, and the design improves machining accuracy and ensures consistency and repeatability of the tool head and prevents the tool head from being broken due to stress;

[0033] The spring chuck body 1 is made of 65Mn and is quenched to have a hardness of 60-62HRC, the material and heat treatment process provide excellent wear resistance and fatigue resistance, and prolong the service life of the chuck, and the outer circumferential wall of the spring chuck body 1 is further provided with anti-skid lines, which increases the safety and convenience of adjusting the chuck and reduces the risk of hand slipping.

[0034] The web groove is 3 mm, and the web groove end face and the spring chuck body 1 are left with a web of 3-4 mm, which ensures the integrity of the chuck and avoids affecting the flexibility and strength of the chuck due to the thickness of the web.

[0035] In use, before starting work, first check the overall state of the seat ring spring chuck, including whether the spring chuck body 1, the through slot 11, the split slot 12, the web groove and the positioning ring 13 are intact, ensure that there is no crack, deformation or excessive wear, clean the dust, oil stains and chips on the inner and outer surfaces of the chuck, keep it clean and tidy, insert the tool handle to be machined into the through slot 11, and ensure that the end of the tool handle is in close contact with the positioning ring 13, use the positioning effect of the positioning ring to ensure that the tool handle is installed at the same height, thereby improving machining accuracy, place the powder metallurgy valve seat ring or other small parts to be machined in the working area of the chuck, ensure that the workpiece is correctly positioned without deviation or inclination, gradually increase the clamping force by rotating the adjusting nut of the chuck, so that the workpiece is stably clamped in the chuck, and in this process, attention should be paid to whether the workpiece is deformed or displaced, and if there is an abnormality, the clamping force should be adjusted or the workpiece should be repositioned in time, after clamping is completed, the clamping state of the workpiece is carefully checked to ensure that the workpiece is firmly and reliably clamped without loosening or shaking, and at the same time, the parts of the chuck are checked to ensure that they are in normal working condition without abnormal noise or vibration, after confirming that the chuck and the workpiece are clamped correctly, the machine tool is started for machining operation, and after machining is completed, the clamping device is gradually loosened by rotating the adjusting nut of the chuck, so that the workpiece is separated from the chuck, and in this process, attention should be paid to control the loosening speed and force to avoid damage or deformation of the workpiece, and at the same time, the chips and impurities on the chuck are cleaned to keep it clean for next use.

[0036] The working process of the utility model:

[0037] In use, before starting work, first check the overall state of the seat ring spring chuck, including the spring chuck body 1, through slot 11, slot 12, connecting rib groove and positioning ring 13 and other components are intact, ensure that there is no crack, deformation or excessive wear, clean the inside and outside surface of the chuck dust, oil stains and chips, keep it clean, insert the tool shank to be processed into the through slot 11, and ensure that the end of the tool shank is in close contact with the positioning ring 13, use the positioning effect of the positioning ring to ensure that the tool shank is installed at the same height, thereby improving the machining precision, place the powder metallurgy valve seat ring to be processed or other small parts in the working area of the chuck, ensure that the workpiece position is correct, no deviation or inclination, gradually increase the clamping force by rotating the adjusting nut of the chuck, so that the workpiece is firmly clamped in the chuck, in this process, attention should be paid to whether the workpiece is deformed or displaced, if there is an abnormality, the clamping force should be adjusted in time or the workpiece should be placed again, after clamping is completed, carefully check the clamping state of the workpiece, ensure that the workpiece is firm and reliable, no loose or shaking phenomenon, at the same time, check whether each part of the chuck is in normal working state, no abnormal noise or vibration, after confirming that the chuck and the workpiece are clamped correctly, start the machine tool for machining operation, after machining is completed, gradually loosen the clamping device by rotating the adjusting nut of the chuck, so that the workpiece is separated from the chuck, in this process, attention should be paid to control the loosening speed and force to avoid damage or deformation to the workpiece, at the same time, clean the chips and sundries on the chuck to keep it clean for next use.

[0038] The utility model is described exemplarily above in combination with the drawings, and obviously, the specific implementation of the utility model is not limited by the above mode, as long as this kind of non-essential improvement using the method concept and technical scheme of the utility model, or directly applying the concept and technical scheme of the utility model to other occasions without improvement, all are within the protection scope of the utility model.

Claims

1. A seat ring spring collet comprising a spring collet body (1), characterized in that: The spring collet body (1) is provided in a conical structure, a through slot (11) is formed in the spring collet body (1), three equidistant split slots (12) are formed on the outer circumferential wall of the spring collet body (1), a connecting rib slot is formed on the outer wall of the spring collet body (1) between the two split slots (12), and the rib slot ensures that the spring collet body (1) is an integral whole.

2. A race spring collet according to claim 1, wherein: A positioning ring (13) is arranged on the inner circumferential wall of the side of the through slot (11) away from the collet end of the spring collet body (1), and the positioning ring (13) is used for positioning the tool bit to be installed at the same height.

3. A race spring collet according to claim 1, wherein: The spring collet body (1) is made of 65Mn, and the quenching hardness is 60-62HRC.

4. The race spring collet of claim 1 wherein: The split slot (12) is 20mm*40mm.

5. The race spring collet of claim 1 wherein: The connecting rib slot is 3mm, and a 3-4mm connecting rib is left between the end face of the connecting rib slot and the spring collet body (1) to make the collet body an integral whole.

6. A race spring collet according to claim 2, wherein: The inner circumferential wall diameter of the positioning ring (13) is smaller than the shank end diameter of the tool bit.

7. A race spring collet according to claim 1 wherein: The outer circumferential wall of the spring collet body (1) is further provided with anti-skid lines.

8. The race spring collet of claim 1 wherein: The depth of the through slot (11) is 50mm.

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