High-precision clamping and supporting device for bars

Abstract

The invention discloses a high-precision clamping and supporting device for bars. Comprising a clamping piece capable of clamping one end of a bar, a supporting piece which is separated from the clamping piece and is independent from the clamping piece, and a position adjusting mechanism capable of adjusting the horizontal distance and the vertical distance of the supporting piece relative to the clamping piece. The angle adjusting mechanism is connected between the position adjusting mechanism and the supporting piece and can adjust the horizontal angle and the vertical angle of the supporting piece relative to the clamping piece, and the position adjusting mechanism and the angle adjusting mechanism can cooperatively adjust the posture of the supporting piece relative to the clamping piece according to the machining requirement. And therefore, the supporting piece can accurately support the bar. According to the high-precision clamping and supporting device for the bars, the bars can be rapidly and accurately supported and clamped, the machining precision and efficiency of bar products are well improved, and the precision and / or high-precision machining requirements are / is met; and the device can be suitable for a plurality of bars with different sizes, and is very good in universality.

Description

Technical Field

[0001] The present invention relates to the technical field of tool bar stock processing devices, and particularly to a high-precision clamping and supporting device for bar stock. Background Art

[0002] As a professional tool for machining precision parts in a numerical control machine tool, the accuracy of a tool itself can have a direct and important impact on the machining accuracy of parts.

[0003] In existing tool processing lines, a five-axis linkage precision grinding machine is conventionally used to process tools. However, since the above-mentioned grinding machine is not suitable for clamping and processing slender tool bar stock, it is necessary to pre-cut the slender tool bar stock into short bar stock that meets the processing requirements of the grinding machine. However, in the cutting operation of the tool bar stock, due to the diversity of tool sizes, there is a problem that the support and positioning effects of the existing support and positioning devices on the bar stock are not ideal / insufficient, resulting in poor phenomena such as bar stock processing deformation and unstable processing accuracy, and thus unable to meet the requirements of precision and / or high-precision processing. In view of this, the present invention is specifically proposed. Summary of the Invention

[0004] In order to overcome the above defects, the present invention provides a high-precision clamping and supporting device for bar stock, which has a simple and reasonable structure, and is simple and flexible to operate. It can not only quickly and accurately support and clamp the bar stock, greatly improving the processing accuracy and efficiency of bar stock products and meeting the requirements of precision and / or high-precision processing, but also be applicable to several bar stocks of different sizes, with very good versatility.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a high-precision clamping and supporting device for bar stock, comprising: A clamping member capable of clamping one end of the bar stock; A supporting member spaced apart from and independently arranged relative to the clamping member; A position adjusting mechanism capable of adjusting the horizontal and vertical distances of the supporting member relative to the clamping member; An angle adjusting mechanism connected between the position adjusting mechanism and the supporting member and capable of adjusting the horizontal and vertical angles of the supporting member relative to the clamping member; That is, the position adjusting mechanism and the angle adjusting mechanism can cooperate according to processing requirements to adjust the pose of the supporting member relative to the clamping member, so that the supporting member can accurately support the bar stock.

[0006] As a further improvement of the present invention, the position adjusting mechanism includes a first translation member capable of reciprocating and positioning along a first horizontal direction, a lifting assembly provided on the first translation member and capable of outputting lifting power, and a second translation member provided on the power output end of the lifting assembly and capable of slightly moving and positioning along a second horizontal direction, wherein the first horizontal direction is perpendicular to the second horizontal direction, and the lifting assembly is provided with a limiting assembly capable of controlling the upward movement stroke of its power output end.

[0007] As a further improvement of the present invention, the lifting assembly is provided with a cylinder body and a piston rod inserted into the cylinder body and capable of moving up and down under the action of hydraulic oil. The upper end of the piston rod extending outside the cylinder body is the power output end of the lifting assembly; The limiting assembly is provided with an adjusting screw, a guide sleeve, a connecting member and a locking screw. The adjusting screw is screwed onto the cylinder body in such a way that its lower end is inserted into the cylinder body and its upper end extends out of the cylinder body in a sealed manner, and a limiting member with a snap ring structure is also sleeved on the adjusting screw near its upper end; the guide sleeve is sleeved outside the lower end of the adjusting screw with a clearance and is fixedly connected to the lower end of the piston rod through the connecting member at the same time. The locking screw can tighten and fix the limiting member on the adjusting screw and also lock and fix the limiting member on the inner wall of the cylinder body.

[0008] As a further improvement of the present invention, the first translation member adopts a flat plate structure; the position adjusting mechanism further includes a linear slide table module, and the power output end of the linear slide table module can reciprocate and position along the first horizontal direction and is fixedly connected to the first translation member at the same time.

[0009] As a further improvement of the present invention, the second translation member adopts a block structure, and a through hole extending along the second horizontal direction is provided on the second translation member; the position adjusting mechanism further includes a mounting seat, a guide rod, an adjusting screw and a pre-tightening member. The mounting seat is fixedly connected to the power output end of the lifting assembly. The guide rod movably passes through the through hole of the second translation member and is installed on the mounting seat together with the second translation member. The adjusting screw passes through one side of the mounting seat along the second horizontal direction and abuts against the second translation member. The pre-tightening member is connected to the opposite side of the mounting seat along the second horizontal direction and can apply an elastic pre-pressure along the second horizontal direction to the second translation member.

[0010] As a further improvement of the present invention, the angle adjustment mechanism includes a first adjustment seat, a second adjustment seat, a first adjustment component, and a second adjustment component. The first adjustment seat is disposed on the upper side of the second translation member and can be horizontally rotationally positioned around the center of the second translation member under the action of the first adjustment component. Moreover, an upper portion of the first adjustment seat is formed with a bifurcated structure arranged vertically. The second adjustment seat is inserted into the bifurcated structure and is rotationally connected to the bifurcated structure through a rotating shaft. Further, the second adjustment seat can also be vertically swing-positioned relative to the vertical center line of the bifurcated structure under the action of the second adjustment component.

[0011] As a further improvement of the present invention, a bottom portion of the first adjustment seat is a flat plate structure, and the bottom portion of the first adjustment seat is rotationally installed at a central position on the upper side of the second translation member through a central axis. The first adjustment component is provided with an eccentric pin and a locking bolt A. A small-diameter end of the eccentric pin is inserted into the second translation member with a clearance, and a large-diameter section of the eccentric pin is fixedly embedded in the bottom portion of the first adjustment seat. By applying an external force to the eccentric pin, the first adjustment seat can be synchronously driven to horizontally rotate around the center of the second translation member. The locking bolt A can lock and fix the first adjustment seat on the upper side of the second translation member.

[0012] As a further improvement of the present invention, the second adjustment component is provided with an adjustment bolt and a locking bolt B. The adjustment bolt passes through the bifurcated structure in a threaded manner and is fixedly connected to the bottom portion of the second adjustment seat. A spring member capable of applying an elastic pressure to the second adjustment seat is further sleeved on the adjustment bolt. The locking bolt B can lock and fix the second adjustment seat on the bifurcated structure.

[0013] As a further improvement of the present invention, the support member is provided with two groups of support bearing assemblies that are arranged side by side and rotatably disposed on the top of the second adjustment seat. The two groups of support bearing assemblies cooperate to support a bar stock portion disposed therebetween.

[0014] As a further improvement of the present invention, the clamping member adopts a collet. The high-precision support device further includes a bracket that is relatively spaced from the adjustment mechanism along the first horizontal direction, and a DD motor that is installed on the bracket and can drive the clamping member to rotate.

[0015] The beneficial effects of the present invention are as follows: ① By using the clamping and supporting device of the present invention to quickly, precisely and adaptively adjust the pose of the support member relative to the clamping member, it can be realized that the support member and the clamping member can cooperate to quickly and precisely support and clamp the bar stock, thus effectively avoiding the problems of bar stock processing deformation and unstable processing accuracy caused by unsatisfactory or inadequate support for the bar stock in the prior art; Therefore, the clamping and supporting device of the present invention can well improve the processing accuracy and efficiency of the bar stock and well meet the requirements of precision and / or high-precision processing. ② The structure of the clamping and supporting device of the present invention is simple and reasonable, and the operation is simple and flexible. It can be applied to bar stocks of several different sizes, and has very good versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the high-precision clamping and supporting device for bar stock of the present invention; Figure 2 is Figure 1 a partial structural diagram of the high-precision clamping and supporting device for bar stock shown in ; Figure 3 is Figure 2 a structural diagram of the lifting assembly shown in from a first perspective; Figure 4 is Figure 2 a structural diagram of the lifting assembly shown in from a second perspective; Figure 5 is Figure 2 a sectional structural diagram of the lifting assembly shown in ; Figure 6 is Figure 2 a partial structural diagram of the lifting assembly shown in ; Figure 7 is Figure 2 a partial structural diagram of the position adjusting mechanism shown in ; Figure 8 is Figure 7 an exploded structural diagram of the partial structure of the position adjusting mechanism shown in ; Figure 9 is Figure 2 a structural diagram of the angle adjusting mechanism shown in from a first perspective; Figure 10 is Figure 2 a structural diagram of the angle adjusting mechanism shown in from a second perspective.

[0017] The following descriptions are made in conjunction with the drawings: 1. Clamping member; 2. Support member; 20. Pin shaft; 21. Bearing; 3. Position adjusting mechanism; 30. First translation member; 31. Lifting assembly; 310. Cylinder block; 311. Piston rod; 312. Adjusting screw; 313. Guide sleeve; 314. Connecting member; 315. Locking screw; 316. Limiting member; 32. Second translation member; 320. Perforation; 321. Slot hole; 322. Central hole; 323. Receiving hole; 324. Threaded mounting hole; 33. Linear slide module; 34. Mounting seat; 35. Guide rod; 36. Adjusting screw; 37. Preloading member; 370. Preloading bolt; 371. Disc spring; 38. Connecting block; 4. Angle adjusting mechanism; 40. Rotating shaft; 41. First adjusting seat; 410. Bifurcated structure; 411. Embedded hole; 412. Countersunk head hole; 42. Second adjusting seat; 420. Lug; 421. Avoidance groove; 44. Eccentric pin; 45. Locking bolt A; 46. Adjusting bolt; 47. Locking bolt B; 50. Bracket; 51. DD motor. Detailed implementation manner

[0018] The following uses the attached drawings to make a detailed description of the preferred embodiments of the present invention.

[0019] Embodiment

[0020] Please refer to the attached Figure 1 As shown, this embodiment provides a high-precision clamping and supporting device for bar materials, which includes a clamping member 1, a support member 2, a position adjusting mechanism 3 and an angle adjusting mechanism 4. The clamping member 1 can clamp one end of the bar material. The support member 2 is spaced apart from the clamping member 1 and is independently arranged. The position adjusting mechanism 3 can adjust the horizontal distance and vertical distance of the support member 2 relative to the clamping member 1. The angle adjusting mechanism 4 is connected between the position adjusting mechanism 3 and the support member 2 and can adjust the horizontal angle and vertical angle of the support member 2 relative to the clamping member 1. That is, the position adjusting mechanism 3 and the angle adjusting mechanism 4 can cooperate according to the processing requirements to adjust the position and posture (i.e., position and attitude) of the support member 2 relative to the clamping member 1, so that the support member 2 can adaptively and precisely support the bar material.

[0021] It can be understood that this application can quickly, precisely and adaptively adjust the position and posture of the support member 2 relative to the clamping member 1 according to the processing requirements of bar materials, especially slender bar materials, so as to realize that the support member 2 and the clamping member 1 can cooperate to quickly and precisely support and clamp the bar material B, thus effectively avoiding the problems of bar material processing deformation and unstable processing accuracy caused by unsatisfactory / insufficient support for bar materials in the prior art; Therefore, the clamping and supporting device of this application can well improve the processing accuracy and efficiency of bar materials and well meet the requirements of precision and / or high-precision processing.

[0022] The specific structure of the high-precision clamping and supporting device for the bar stock described in this embodiment will be described in detail below.

[0023] First, please refer to the attached Figure 1 and 2 As shown, in the structure of the high-precision clamping and supporting device for the bar stock described in this embodiment, the position adjustment mechanism 3 includes a first translation member 30 capable of reciprocating and positioning along a first horizontal direction, a lifting assembly 31 provided on the first translation member 30 and capable of outputting lifting power, and a second translation member 32 provided on the power output end of the lifting assembly 31 and capable of slightly moving and positioning along a second horizontal direction. Among them, the first horizontal direction is perpendicular to the second horizontal direction. It can be understood that the position adjustment mechanism 3 can realize the position adjustment functions in two different horizontal directions and the position adjustment function in the vertical direction, so as to accurately adjust the horizontal distance and vertical distance between the support member 2 and the clamping member 1.

[0024] Furthermore, to better meet the load-bearing function, in this embodiment, the first translation member 30 is preferably a flat plate structure, and the way to realize the reciprocating movement and positioning of the first translation member 30 along the first horizontal direction in this embodiment is: Please continue to refer to the attached Figure 2 As shown, the position adjustment mechanism 3 further includes a linear slide table module 33 (specifically, a combination of a motor and a lead screw module). The power output end of the linear slide table module 33 can reciprocate and position along the first horizontal direction and is fixedly connected to the first translation member 30 at the same time. It can be understood that the linear slide table module 33 can drive the first translation member 30 to perform a horizontal linear motion with high precision, high efficiency, high safety, and a large stroke range. In this way, when processing a slender bar stock, as the force application point of the bar stock during processing changes, based on the linear slide table module 33, the support member 2 can be quickly and accurately driven to support different positions on the slender bar stock, effectively ensuring the stability during bar stock processing.

[0025] Furthermore, the preferred implementation structure of the lifting assembly 31 in this embodiment is: Please refer to the attached Figure 2 to the attached Figure 6As shown, the lifting assembly 31 is provided with a cylinder body 310, a piston rod 311 inserted in the cylinder body 310 and capable of moving up and down under the action of hydraulic oil, and a limit assembly capable of controlling the upward movement stroke of the piston rod 311, wherein an oil filling hole is provided on the cylinder body 310, and the principle of the up and down movement of the piston rod 311 under the action of hydraulic oil can refer to the working principle of the hydraulic cylinder, which is common knowledge and will not be described in detail here; in addition, the upper end of the piston rod 311 extending outside the cylinder body 310 is the power output end of the lifting assembly 31; the limit assembly is provided with an adjusting screw 312, a guide sleeve 313, a connecting piece 314 and The locking screw 315 is screwed to the cylinder body 310 in a manner that the lower end of the adjusting screw 312 is inserted into the cylinder body 310 and the upper end is sealed and extended outside the cylinder body 310. A limiter 316 with a snap ring structure is also sleeved on the adjusting screw 312 near its upper end. The guide sleeve 313 is loosely sleeved outside the lower end of the adjusting screw 312 and is fixedly connected to the lower end of the piston rod 311 through the connecting piece 314. The locking screw 315 can tighten and fix the limiter 316 to the adjusting screw 312 while also locking and fixing the limiter 316 to the inner wall of the cylinder body 310. It is understandable that before the clamping support device described in this application works normally, the limiter assembly can be adjusted according to the bar processing requirements to adjust the upward movement stroke of the piston rod 311. The specific adjustment method for the limiter assembly is as follows: first, unscrew the locking screw 315 outward to a set length, so that the limiter 316 is loosened but does not disengage from the adjustment screw 312. Then, according to processing requirements, the adjustment screw 312 is manipulated to be screwed downward or upward to a set distance (this set distance is generally small and is a fine adjustment), and then the locking screw 315 is screwed inward to lock the limiter 316. Based on this fine adjustment of the position of the adjustment screw 312, the upward movement stroke of the guide sleeve 313 can be finely adjusted, and thus the upward movement stroke of the piston rod 311 can be finely adjusted.

[0026] Further explanation: ① In this embodiment, the upper end of the adjusting screw 312 and the locking screw 315 are respectively provided with precision fine-pitch threads. Based on the precision fine-pitch threads, it is not only more conducive to self-locking and anti-loosening, but also can achieve a good sealing effect. ② In this embodiment, the guide sleeve 313 and the adjusting screw 312 are equipped with a clearance sleeve, which can effectively prevent the adjusting screw 312 from interfering with the piston rod 311. For example, when the adjusting screw 312 is manipulated to rotate, the clearance fit relationship between the adjusting screw 312 and the guide sleeve 313 can prevent it from interfering with the piston rod 311, thereby improving the safety of the lifting assembly 31.

[0027] Further, to better meet the load-bearing function, in this embodiment, the second translation member 32 is preferably a block structure with a flat upper surface. The method for realizing that the second translation member 32 can be positioned by slightly moving along the second horizontal direction is as follows: Please refer to the attached Figure 2 , the attached Figure 7 and the attached Figure 8 . As shown, the position adjustment mechanism 3 further includes a mounting seat 34, a guide rod 35, an adjustment screw 36, and a pre-tightening member 37. Among them, the mounting seat 34 is a U-shaped structure and is fixedly connected to the power output end of the lifting assembly 31 (i.e., the upper end of the piston rod 311) through a connecting block 38. The guide rod 35 movably passes through the second translation member 32 and is installed on the mounting seat 34 together with the second translation member 32. The adjustment screw 36 is screwed through one side of the mounting seat 34 along the second horizontal direction and then abuts against or is fixedly connected to the second translation member 32 to drive the second translation member 32 to slightly move along the second horizontal direction. The pre-tightening member 37 is connected to the opposite side of the mounting seat 34 along the second horizontal direction and can apply an elastic pre-pressure along the second horizontal direction to the second translation member 32. It can be understood that by externally rotating the adjustment screw 36, the second translation member 32 can be driven to slightly reciprocate along the second horizontal direction. And during the slight movement of the second translation member 32, the pre-tightening member 37 will always provide an elastic pre-pressure to the second translation member 32, so as to ensure that the moving distance of the second translation member 32 is more accurate.

[0028] For further illustration: ① Please continue to refer to the attached Figure 8 . As shown, the second translation member 32 is provided with a through hole 320 extending along the second horizontal direction for the guide rod 35 to movably pass through, and a slot 321 for movably receiving one end of the pre-pressure bolt 370 is provided on one side of the second translation member 32 facing the pre-pressure bolt 370. ② The preferred structure of the pre-tightening member 37 is: Please continue to refer to the attached Figure 8 . As shown, the pre-tightening member 37 includes a pre-pressure bolt 370 installed on the opposite side of the mounting seat 34 along the second horizontal direction and a disc spring 371 sleeved on the pre-pressure bolt 370 and elastically abutting between the mounting seat 34 and the second translation member 32 at the same time.

[0029] Next, please refer to the attached Figure 2 , the attached Figure 9 and the attached Figure 10As shown, in the structure of the high-precision clamping and supporting device for bar materials in this embodiment, the angle adjustment mechanism 4 includes a first adjustment seat 41, a second adjustment seat 42, a first adjustment component, and a second adjustment component. Among them, the first adjustment seat 41 is arranged on the upper side of the second translation member 32 and can be horizontally rotationally positioned around the center of the second translation member 32 under the action of the first adjustment component. And an upward bifurcated structure 410 arranged vertically is formed on the upper part of the first adjustment seat 41; the second adjustment seat 42 is inserted into the bifurcated structure 410 and is rotationally connected (or can be understood as movably connected) to the bifurcated structure 410 through a rotating shaft 40. And the second adjustment seat 42 can also be vertically swing-positioned relative to the vertical center line of the bifurcated structure 410 under the action of the second adjustment component. It can be understood that the angle adjustment mechanism 4 can realize the horizontal angle adjustment function (specifically realized by the first adjustment component controlling the first adjustment seat 41) and the vertical angle adjustment function (specifically realized by the second adjustment component controlling the second adjustment seat 42), so as to realize the adjustment of the horizontal angle and vertical angle of the support member 2 relative to the clamping member 1.

[0030] Furthermore, the way for this embodiment to realize that the first adjustment component can act to make the first adjustment seat 41 horizontally rotationally positioned around the center of the second translation member 32 is as follows: Please continue to refer to the attached Figure 9 And 10 As shown, the bottom of the first adjustment seat 41 is a flat plate structure, and the bottom of the first adjustment seat 41 is rotationally installed at the central position on the upper side of the second translation member 32 through a central axis (not shown in the figure); the first adjustment component is provided with an eccentric pin 44 and a locking bolt A45. The small-diameter end of the eccentric pin 44 is inserted into the second translation member 32 with a clearance, and the large-diameter section of the eccentric pin 44 is fixedly embedded in the bottom of the first adjustment seat 41. By applying an external force to rotate the eccentric pin 44, it can synchronously drive the first adjustment seat 41 to horizontally rotate around the center of the second translation member 32 (note: the horizontal rotation of the first adjustment seat 41 belongs to a micro-rotation); after adjusting the position of the first adjustment seat 41 by rotating the eccentric pin 44, the locking bolt A45 can lock and fix the first adjustment seat 41 on the upper side of the second translation member 32.

[0031] For further explanation: ① Please continue to refer to the attached Figure 8 As shown, the second translation member 32 is provided with a central hole 322 that is rotationally installed and matched with the central axis, a receiving hole 323 that is installed and matched with the small-diameter end of the eccentric pin 44 with a clearance, and a threaded installation hole 324 that is screwed and matched with the locking bolt A45. Please continue to refer to the attached Figure 9 And 10As shown, an insertion hole 411 fixedly and embeddedly fitted with the large-diameter section of the eccentric pin 44 and a counterbore 412 fitted with the locking bolt A45 are provided on the bottom of the first adjustment base 41. ② The inner diameter of the counterbore 412 is about 2 mm larger than the outer diameter of the head of the locking bolt A45, and the inner diameter of the receiving hole 323 is also about 2 mm larger than the outer diameter of the small-diameter end of the eccentric pin 44 to meet the adjustment space requirement.

[0032] Further, the way for this embodiment to enable the second adjustment assembly to act to vertically swing and position the second adjustment base 42 relative to the vertical center line of the bifurcated structure 410 is as follows: Please continue to refer to the attached Figure 9 and 10 As shown, the second adjustment assembly is provided with an adjustment bolt 46 and a locking bolt B47. The adjustment bolt 46 passes through the bifurcated structure 410 in a threaded manner and is fixedly connected to the bottom of the second adjustment base 42, and a spring member (not shown in the figure, specifically a disc spring can be used) capable of applying elastic pressure to the second adjustment base 42 is sleeved on the adjustment bolt 46; after adjusting the position of the second adjustment base 42 by rotating the adjustment bolt 46, the locking bolt B47 can lock and fix the second adjustment base 42 to the bifurcated structure 410.

[0033] For further illustration: ① Please continue to refer to the attached Figure 9 and 10 As shown, the axial directions of the rotating shaft 40 and the locking bolt B47 are respectively parallel to the second horizontal direction, and the axial direction of the adjustment bolt 46 is perpendicular to the axial direction of the rotating shaft 40. ② The bifurcated structure 410 is provided with a mounting hole (not shown in the figure) fitted with the rotating shaft 40 and a counterbore A (not shown in the figure) fitted with the locking bolt B47. The inner diameter of the counterbore A is about 2 mm larger than the outer diameter of the head of the locking bolt B47 to meet the adjustment space requirement. ③ The middle part of the rotating shaft 40 is threadedly connected to the second adjustment base 42, and the two ends of the rotating shaft 40 are respectively installed in clearance fit with the mounting holes on the bifurcated structure 410.

[0034] Next, please continue to refer to the attached Figure 9 and 10 As shown, in the structure of the high-precision clamping and supporting device for bar materials in this embodiment, the support member 2 is provided with two groups of support bearing assemblies arranged side by side and rotatably provided on the top of the second adjustment base 42, and the two groups of support bearing assemblies cooperate to support the bar material part placed between them.

[0035] Further, please continue to refer to the attached Figure 9 and 10As shown, two sets of lug groups are provided on the top of the second adjustment seat 42, and each lug group is composed of a pair of lugs 420. Each set of the support bearing assemblies is provided with a pin shaft 20 rotatably installed on a set of the lug groups and at least one bearing 21 sleeved on the pin shaft 20. It can be understood that based on the size of the bar stock, the two sets of support bearing assemblies can provide planar support or "V" support for the bar stock, and the applicability is very good. In addition, in this embodiment, an avoidance groove 421 for avoiding the bar stock is recessed at a position on the top of the second adjustment seat 42 and between the two sets of lug groups. For example, when the two sets of support bearing assemblies provide "V" support for the bar stock B, the avoidance groove 421 fully exerts the avoidance effect and improves the support effect on the bar stock.

[0036] Please continue to refer to the attached Figure 1 As shown, in the structure of the high-precision clamping and supporting device for bar stock described in this embodiment, the clamping member 1 is a collet; the high-precision supporting device further includes a bracket 50 disposed at a relatively spaced interval from the adjusting mechanism along the first horizontal direction, and a DD motor 51 installed on the bracket 50 and capable of driving the clamping member 1 to rotate. It can be understood that through the DD motor 51, the requirement of driving the bar stock to rotate can be realized. In addition, from the structure of the above-mentioned support member 2, when the DD motor 51 drives the bar stock to rotate, the support member 2 can not only play an accurate support function, but also effectively protect the bar stock from being damaged by friction.

[0037] Finally, the prefixes "first", "second", etc. (such as the first translation member, the second translation member, etc.) of the component names in this specification, as well as the suffixes "A", "B", etc. (such as the locking bolt A, the locking bolt B, etc.) of the component names are only for the convenience of clear description, rather than to limit the scope of implementation of this invention patent.

[0038] In summary, the structure of the high-precision clamping and supporting device for bar stock described in the present invention is simple, reasonable, easy to operate, and flexible. It can not only quickly and accurately support and clamp the bar stock, greatly improving the processing precision and efficiency of the bar stock products and meeting the requirements of precision and / or high-precision processing, but also be applicable to several bar stocks of different sizes, with very good versatility.

[0039] Numerous specific details have been set forth in the above description to facilitate a full understanding of the present invention. However, the above description is only a preferred embodiment of the present invention, and the present invention can be implemented in many other ways different from those described herein. Therefore, the present invention is not limited by the specific embodiments disclosed above. At the same time, any person skilled in the art can make many possible changes and modifications to the technical solution of the present invention, or modify it into an equivalent embodiment with equivalent changes, without departing from the scope of the technical solution of the present invention. All simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A high-precision clamping and supporting device for bar stock, characterized in that: Including: A clamping member (1) capable of clamping one end of a bar stock; A support member (2) spaced from and independently arranged relative to the clamping member (1); A position adjustment mechanism (3) capable of adjusting the horizontal and vertical distances of the support member (2) relative to the clamping member (1); An angle adjustment mechanism (4) connected between the position adjustment mechanism (3) and the support member (2) and capable of adjusting the horizontal and vertical angles of the support member (2) relative to the clamping member (1); That is, the position adjustment mechanism (3) and the angle adjustment mechanism (4) can cooperate to adjust the pose of the support member (2) relative to the clamping member (1) according to processing requirements, so that the support member (2) can accurately support the bar stock.

2. The high-precision clamping and supporting device for bar materials according to claim 1, wherein: The position adjustment mechanism (3) includes a first translation member (30) capable of reciprocating and positioning along a first horizontal direction, a lifting assembly (31) provided on the first translation member (30) and capable of outputting lifting power, and a second translation member (32) provided on the power output end of the lifting assembly (31) and capable of microscopically moving and positioning along a second horizontal direction. Wherein, the first horizontal direction is perpendicular to the second horizontal direction, and the lifting assembly (31) is provided with a limit assembly capable of controlling the upward movement stroke of its power output end.

3. The high-precision clamping and supporting device for bar stock according to claim 2, characterized in that: The lifting assembly (31) is provided with a cylinder block (310) and a piston rod (311) inserted into the cylinder block (310) and capable of moving up and down under the action of hydraulic oil. The upper end of the piston rod (311) extending outside the cylinder block (310) is the power output end of the lifting assembly (31); The limit assembly is provided with an adjusting screw (312), a guide sleeve (313), a connecting member (314) and a locking screw (315). The adjusting screw (312) is screwed onto the cylinder block (310) in such a way that its lower end is inserted into the cylinder block (310) and its upper end is hermetically extended outside the cylinder block (310). And a limit member (316) with a snap ring structure is also sleeved on the adjusting screw (312) near its upper end; The guide sleeve (313) is sleeved outside the lower end of the adjusting screw (312) with a clearance and is simultaneously fixedly connected to the lower end of the piston rod (311) through the connecting member (314). The locking screw (315) can tighten and fix the limit member (316) on the adjusting screw (312) and at the same time lock and fix the limit member (316) on the inner wall of the cylinder block (310).

4. The high-precision clamping and supporting device for bar stock according to claim 2, characterized in that: The first translation member (30) adopts a flat plate structure; The position adjustment mechanism (3) further includes a linear slide table module (33). The power output end of the linear slide table module (33) can reciprocate and position along the first horizontal direction and is simultaneously fixedly connected to the first translation member (30).

5. The high-precision clamping and supporting device for bar stock according to claim 2, wherein: The second translation member (32) adopts a block structure, and a through hole (320) extending along the second horizontal direction is provided on the second translation member (32); The position adjustment mechanism (3) further includes a mounting base (34), a guide rod (35), an adjustment screw (36), and a pre-tightening member (37). The mounting base (34) is fixedly connected to the power output end of the lifting assembly (31). The guide rod (35) movably passes through the perforation (320) of the second translation member (32) and is mounted on the mounting base (34) together with the second translation member (32). The adjustment screw (36) is screwed through one side of the mounting base (34) along the second horizontal direction and abuts against the second translation member (32). The pre-tightening member (37) is connected to the opposite side of the mounting base (34) along the second horizontal direction and can apply an elastic pre-pressure to the second translation member (32) along the second horizontal direction.

6. The high-precision clamping and supporting device for bar stock according to claim 2, wherein: The angle adjustment mechanism (4) includes a first adjustment base (41), a second adjustment base (42), a first adjustment assembly, and a second adjustment assembly. The first adjustment base (41) is arranged on the upper side of the second translation member (32) and can be horizontally rotationally positioned around the center of the second translation member (32) under the action of the first adjustment assembly. The upper part of the first adjustment base (41) forms a bifurcated structure (410) arranged vertically. The second adjustment base (42) is inserted into the bifurcated structure (410) and is rotatably connected to the bifurcated structure (410) through a rotating shaft (40). The second adjustment base (42) can also be vertically swing-positioned relative to the vertical center line of the bifurcated structure (410) under the action of the second adjustment assembly.

7. The high-precision clamping and supporting device for bar materials according to claim 6, characterized in that: The bottom of the first adjustment base (41) is a flat plate structure, and the bottom of the first adjustment base (41) is rotatably mounted at the central position on the upper side of the second translation member (32) through a central axis. The first adjustment assembly is provided with an eccentric pin (44) and a locking bolt A (45). The small-diameter end of the eccentric pin (44) is inserted into the second translation member (32) with a clearance, and the large-diameter section of the eccentric pin (44) is fixedly embedded in the bottom of the first adjustment base (41). By applying an external force to the eccentric pin (44), the first adjustment base (41) can be synchronously driven to horizontally rotate around the center of the second translation member (32). The locking bolt A (45) can lock and fix the first adjustment base (41) on the upper side of the second translation member (32).

8. The high-precision clamping and supporting device for bar stock according to claim 7, characterized in that: The second adjustment assembly is provided with an adjustment bolt (46) and a locking bolt B (47). The adjustment bolt (46) is screwed through the bifurcated structure (410) and fixedly connected to the bottom of the second adjustment base (42), and a spring member capable of applying an elastic pressure to the second adjustment base (42) is sleeved on the adjustment bolt (46). The locking bolt B (47) can lock and fix the second adjustment base (42) to the bifurcated structure (410).

9. The high-precision clamping and supporting device for bar stock according to claim 6, wherein: The support member (2) is provided with two groups of support bearing assemblies arranged side by side and rotatably disposed on the top of the second adjustment base (42), and the two groups of support bearing assemblies cooperate to support the bar portion placed between them.

10. The high-precision clamping and supporting device for bar stock according to claim 2, characterized in that: The clamping member (1) is a collet; The high-precision support device further includes a bracket (50) disposed at a relatively spaced interval from the adjustment mechanism along the first horizontal direction, and a DD motor (51) mounted on the bracket (50) and capable of driving the clamping member (1) to rotate.

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