A V-shaped floating support device

Abstract

A V-shaped floating support device, wherein a stud seat is inserted into the center hole of the base; a limit nut is fitted onto the outside of the stud seat. The lower end of the slide rail seat is inserted into the center blind hole of the stud seat; a spring is provided between the bottom of the slide rail seat and the inner bottom surface of the center blind hole of the stud seat. The upper end of the slide rail seat is provided with a dovetail groove; the lower end of the slide rail is provided with a dovetail flange; the slide rail is connected to the dovetail groove via the dovetail flange and can slide along the dovetail groove. The slide rail is provided with a slideway for mounting a bracket; the slideway is formed by two upper and lower planes and two left and right arc surfaces. The bracket includes a connecting section inserted into the slideway and a roller frame connected to the connecting section for mounting rollers; both sides of the connecting section have outer arc surfaces that cooperate with the left and right arc surfaces of the slideway for adjusting the roller angle. A plurality of limit grooves are provided on the connecting section; a limit pin is connected to the slide rail for cooperating with the limit groove to limit the axial movement of the bracket. The present invention can realize the rapid clamping and positioning of irregular shaft parts, has flexible adjustment and strong adaptability, and effectively avoids the problems of eccentricity or poor roughness.

Description

Technical Field

[0001] The invention belongs to the field of mechanical processing, and in particular relates to a supporting device. Background Art

[0002] In the field of machining, long shaft workpieces are often clamped and positioned using a tool holder during turning. Due to the workpiece's poor rigidity, vibration occurs during machining, resulting in poor roundness and finish on the turned outer cylindrical surface. Furthermore, irregular shaft parts are often positioned using shims for leveling and alignment during milling. During batch production, due to the variability in part size, each workpiece requires fine-tuning to achieve accurate positioning. This results in high labor intensity, low efficiency, and poor quality consistency, seriously impacting product output. Summary of the Invention

[0003] The purpose of the present invention is to solve the problems of poor rigidity of long shaft parts during turning and high labor intensity and low efficiency in clamping and alignment during milling of irregular shaft parts, and to provide a V-shaped floating support device to effectively ensure the stability of the processing quality of shaft parts and improve the processing efficiency of irregular shaft parts.

[0004] The technical solution of the present invention is: a V-shaped floating support device, including a base, a stud seat movably connected to the base, a slide rail seat movably connected to the stud seat, a slide rail movably connected to the upper part of the slide rail seat, and two brackets movably connected to the slide rail.

[0005] The stud seat is inserted into the center hole of the base; the stud seat is sheathed with a nut for cooperating with the upper end of the base to limit the vertical height of the stud seat.

[0006] The cylindrical section at the lower end of the slide rail seat is inserted into the central blind hole of the stud seat; a spring is provided between the bottom of the slide rail seat and the inner bottom surface of the central blind hole of the stud seat.

[0007] The upper end of the slide rail seat is provided with a dovetail groove for connecting with the slide rail; the lower end of the slide rail is provided with a dovetail flange; the slide rail is connected to the dovetail groove via the dovetail flange and can slide along the dovetail groove.

[0008] The slide rail is provided with a slideway for installing the bracket; the slideway is formed by two upper and lower planes and two left and right arc surfaces; the brackets are respectively inserted at both ends of the slideway.

[0009] The bracket includes a connecting section inserted into the slide and a roller frame connected to the outer end of the connecting section for mounting the roller; outer arc surfaces are provided on both sides of the connecting section to cooperate with the left and right arc surfaces of the slide for adjusting the roller angle.

[0010] The connecting section is provided with a plurality of mutually parallel limiting grooves; the slide rail is connected with a limiting pin for cooperating with the limiting groove to limit the axial movement of the limiting bracket.

[0011] The roller frame is provided with a pair of rollers for supporting the workpiece.

[0012] The roller distribution shaft is connected to the roller frame.

[0013] The roller is sleeved on the pin shaft; one end of the pin shaft is provided with a retaining ring, and the other end is provided with an annular groove for clamping the spring retaining ring.

[0014] The roller frame is arc-shaped.

[0015] The outer wall of the stud seat is provided with a through groove arranged in the axial direction; the base is connected to a cylindrical pin 1 for cooperating with the through groove to limit the rotation of the stud seat around its own axis.

[0016] The outer wall of the cylindrical section at the lower end of the slide rail seat is provided with a keyway arranged along the axial direction; the stud seat is connected to a cylindrical pin 2 for cooperating with the keyway to limit the axial movement range of the slide rail seat.

[0017] A moving groove is provided on one side of the outer wall of the slide rail; and a limiting shaft is connected to the slide rail seat for cooperating with the moving groove to limit the sliding distance of the slide rail along the slide rail seat.

[0018] The limiting shaft includes a connecting portion for connecting to the slide rail seat, a baffle whose rear end is connected to the connecting portion and whose front end extends into the moving groove to limit the sliding distance of the slide rail along the slide rail seat.

[0019] A spring assembly hole is provided at the bottom of the slide rail seat.

[0020] The limit pin has a three-stage stepped structure. The middle stage is a threaded section that cooperates with the threaded hole on the slide rail. The front small stage extends into the limit groove to limit the axial movement of the limit bracket, and the rear large stage is provided with a hexagonal hole.

[0021] Compared with the existing technology, the V-shaped floating support device provided by the present invention can realize the rapid clamping and positioning of irregular shaft parts, has flexible directional and dimensional adjustment, strong product clamping adaptability, simple operation, safety and reliability, and can improve the efficiency of single-piece processing by more than 30%; during processing, the workpiece is always in full contact with the roller on the V-shaped floating support device to increase the rigidity of the workpiece, improve processing stability, and avoid problems such as eccentricity or poor roughness. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1It is a structural schematic diagram of the present invention.

[0024] Figure 2 This is the second structural diagram of the present invention.

[0025] Figure 3 yes Figure 2 AA cross-sectional view.

[0026] Figure 4 It is a top view of the present invention.

[0027] Figure 5 The axonometric Figure 1 .

[0028] Figure 6 The axonometric Figure 2 .

[0029] Figure 7 This is the axonometric drawing of base 1.

[0030] Figure 8 This is the axonometric view of stud seat 2.

[0031] Figure 9 This is the axonometric drawing of the slide rail seat 3.

[0032] Figure 10 This is an axonometric drawing of slide rail 4.

[0033] Figure 11 This is an axonometric drawing of bracket 5.

[0034] Figure 12 It is an axonometric drawing of the limit axis 9.

[0035] Figure 13 It is an axonometric drawing of the limit pin 13.

[0036] Figure 14 It is an axonometric drawing of the pin 10.

[0037] Figure 15 It is a usage state diagram of the present invention.

[0038] Figure 16 This is the second usage diagram of the present invention. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without carrying out creative work are within the scope of protection of the present invention.

[0040] Technologies, methods and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods and equipment should be considered part of the authorization specification.

[0041] The V-shaped floating support device of the present invention comprises: 1: base; 2: stud seat; 3: slide rail seat; 4: slide rail; 5: bracket; 6: nut; 7: spring; 8: cylindrical pin; 9: limit shaft; 10: pin shaft; 11: roller; 12: spring retaining ring; 13: screw; see Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 .

[0042] The stud seat 2 is installed in the hole of the base 1. The external thread of the stud seat 2 is set on the outer circle 203. The outer circle 203 of the stud seat 2 is inserted into the hole 101 of the base 1 with a clearance fit. The annular component connected to the outside of the stud seat 2 is the nut 6. The hole 601 of the nut 6 is an internal thread, which cooperates with the external thread of the stud seat 2. The function is: by rotating the nut 6, the stud seat 2 can move axially along the hole 101 of the base 1. A through groove 201 is designed on the right side, and a cylindrical pin 801 is used for positioning to limit the rotation of the stud seat 2 around its own axis. The base 1 is provided with a pin hole 102 for installing the cylindrical pin 801. See Figure 1 、 Figure 7 、 Figure 8 .

[0043] The rail seat 3 is mated with the stud seat 2. The bottom of the rail seat 3 is supported by a spring 7. A spring mounting hole 304 is provided at the bottom of the rail seat 3. A closed keyway 301 is designed on the left side. A cylindrical pin 802 is used to position the rail seat 3, limiting its movement along the axis within a certain range. The vertical travel of the rail seat 3 is 12 mm, which is used for coarse adjustment of the vertical distance when clamping the workpiece. The stud seat 2 is provided with a pin hole 202 for mounting the cylindrical pin 802. Figure 1 、 Figure 8 、 Figure 9 .

[0044] A dovetail groove 302 is formed at the upper end of the rail seat 3. The dovetail flange 401 of the rail 4 cooperates with the dovetail groove at the upper end of the rail seat 3. A movable groove 402 is formed on one side of the rail 4. The function of the movable groove 402 is to limit the sliding distance of the rail 4 on the rail seat 3 to the length of the movable groove 402 through the limit shaft 9 installed on the rail seat 3. The rail seat 3 is provided with a mounting hole 303 for mounting the limit shaft 9. The limit shaft 9 includes a connecting portion 901 for connecting to the rail seat 3, a baffle 902 whose rear end is connected to the connecting portion 901 and whose front end extends into the movable groove 402 to limit the sliding distance of the rail 4 along the rail seat 3. Figure 6 、 Figure 9 、 Figure 10 、 Figure 12 .

[0045] Four rollers 11 are mounted on two brackets 5, positioned by a pin 10 and secured by a spring retainer 12. The spring retainer 12 is a standard component with a flexible opening. It fits within the annular groove of the pin 10, securing the rollers 11 to the pin 10. The slide rail 4 is equipped with a slideway 403 for mounting the brackets 5. The slideway 403 is formed by two upper and lower flat surfaces and two left and right arcuate surfaces. A bracket 5 is mounted on each end of the slideway 403. The bracket 5 includes a connecting section 51 inserted into the slideway 403 and a roller frame 52 connected to the outer end of the connecting section for mounting the rollers 11. The roller frame 52 is equipped with a pair of rollers 11 for supporting the workpiece. The connecting section 51 is flanked by outer arcuate surfaces 501 that cooperate with the left and right arcuate surfaces of the slideway 403 to adjust the roller angle. The connecting section 51 is provided with multiple parallel stop slots 502. A stop pin 13 is connected to the slide rail 4 to cooperate with the stop slots 502 to limit the axial movement of the bracket 5. The limiting pin 13 has a three-stage stepped structure. The middle stage 131 is a threaded section that cooperates with the threaded hole 404 on the slide rail 4. The front small stage 132 extends into the limiting groove 502 to limit the axial movement of the bracket 5. The rear large stage 133 is provided with a hexagonal hole.

[0046] The bracket 5 is installed in the slide rail 4, and the limiting pin 13 is installed in the threaded hole 404 on the slide rail 4, so that the cylindrical part 132 at the front end of the limiting pin 13 penetrates into the limiting groove 502 of the bracket 5. The limiting groove 502 and the cylindrical part at the front end of the limiting pin 13 are clearance-fitted. At this time, the bracket 5 is fixed in the slideway 403 of the slide rail 4 and cannot move axially, but can only rotate along the axis. The outer arc surface 501 of the bracket 5 contacts the arc surfaces on both sides of the slideway 403 of the slide rail 4, which is a clearance fit. It can rotate along the axis by a certain angle (±15°) to flexibly adjust the roller angle; there are three limiting grooves 502 on the bracket 5. By inserting the cylindrical part at the front end of the limiting pin 13 into different positions of the limiting groove 502, the axial distance between the rollers 11 can be adjusted. Figure 3 、 Figure 6 、 Figure 10 、 Figure 11 、 Figure 13 、 Figure 14 .

[0047] like Figure 15 、 16As shown, this V-shaped floating support device mainly uses the elastic force of the spring 7 to move the slide seat 3 up and down to adjust the up and down movement distance of the workpiece; the slide rail 4 is in contact with the arc surface of the slide rail seat 3, and the horizontal position of the workpiece is adjusted by the groove on the slide rail 4; a groove is designed at one end of the bracket 5, which can move horizontally, and the bracket 5 is in contact with the arc of the inner wall of the slide rail 4 to achieve 360° adjustment of the roller. Regardless of whether there is a high point or eccentricity on the outer surface of the shaft part, the workpiece can always be kept in full contact with the four rollers, avoiding vibration due to poor workpiece rigidity during processing.

[0048] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A V-shaped floating support device, characterized in that: It comprises a base (1), a stud seat (2) movably connected to the base (1), a slide rail seat (3) movably connected to the stud seat (2), a slide rail (4) movably connected to the upper part of the slide rail seat (3), and a bracket (5) movably connected to the slide rail (4); The stud seat (2) is inserted into the center hole (101) of the base (1); the stud seat (2) is sheathed with a nut (6) for cooperating with the upper end of the base (1) to limit the vertical height of the stud seat (2); The cylindrical section at the lower end of the slide rail seat (3) is inserted into the central blind hole of the stud seat (2); a spring (7) is provided between the bottom of the slide rail seat (3) and the inner bottom surface of the central blind hole of the stud seat (2); The upper end of the slide rail seat (3) is provided with a dovetail groove (302) for connecting with the slide rail (4); the lower end of the slide rail (4) is provided with a dovetail flange (401); the slide rail (4) is connected to the dovetail groove (302) via the dovetail flange (401) and can slide along the dovetail groove (302); The slide rail (4) is provided with a slideway (403) for mounting a bracket (5); the slideway (403) is formed by two upper and lower planes and two left and right arc surfaces; brackets (5) are respectively inserted at both ends of the slideway (403); The bracket (5) comprises a connecting section (51) inserted into the slideway (403), and a roller frame (52) connected to the outer end of the connecting section for mounting the roller (11); outer arc surfaces (501) are provided on both sides of the connecting section (51) and cooperate with the left and right arc surfaces of the slideway (403) for adjusting the angle of the roller; The connecting section (51) is provided with a plurality of mutually parallel limiting grooves (502); the slide rail (4) is connected with a limiting pin (13) for cooperating with the limiting groove (502) to limit the axial movement of the limiting bracket (5); The roller frame (52) is provided with a pair of rollers (11) for supporting the workpiece.

2. The V-shaped floating support device according to claim 1, characterized in that: The roller (11) is connected to the roller frame (52) via the distribution shaft (10).

3. The V-shaped floating support device according to claim 2, characterized in that: The roller (11) is sleeved on the pin shaft (10); a retaining ring (1001) is provided at one end of the pin shaft (10), and an annular groove (1002) for clamping the spring retaining ring (12) is provided at the other end.

4. The V-shaped floating support device according to claim 1, characterized in that: The roller frame (52) is arc-shaped.

5. The V-shaped floating support device according to claim 1, characterized in that: The outer wall of the stud seat (2) is provided with a through slot (201) arranged along the axial direction; the base (1) is connected with a cylindrical pin (801) for cooperating with the through slot (201) to limit the rotation of the stud seat (2) around its own axis.

6. The V-shaped floating support device according to claim 1, characterized in that: The outer wall of the cylindrical section at the lower end of the slide rail seat (3) is provided with a keyway (301) arranged along the axial direction; the stud seat (2) is connected with a cylindrical pin 2 (802) for cooperating with the keyway (301) to limit the axial movement range of the slide rail seat (3).

7. The V-shaped floating support device according to claim 1, characterized in that: A movable groove (402) is provided on one side of the outer wall of the slide rail (4); and a limiting shaft (9) is connected to the slide rail seat (3) for cooperating with the movable groove (402) to limit the sliding distance of the slide rail (4) along the slide rail seat (3).

8. The V-shaped floating support device according to claim 7, characterized in that: The limiting shaft (9) comprises a connecting portion (901) for connecting to the slide rail seat (3), a baffle (902) whose rear end is connected to the connecting portion (901) and whose front end extends into the movable groove (402) to limit the sliding distance of the slide rail (4) along the slide rail seat (3).

9. The V-shaped floating support device according to claim 1, characterized in that: A spring assembly hole (304) is provided at the bottom of the slide rail seat (3).

10. The V-shaped floating support device according to claim 1, characterized in that: The limiting pin (13) has a three-stage stepped structure, wherein the middle stage (131) is a threaded section that cooperates with the threaded hole (404) on the slide rail (4), the front small stage (132) extends into the limiting groove (502) to limit the axial movement of the bracket (5), and the rear large stage (133) is provided with a hexagonal hole.

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