Intermediate driving device with double V-shaped supports

Abstract

The utility model discloses a double V-shaped support middle driving device, a first V-shaped support structure and a second V-shaped support structure are arranged on a device track seat, the two V-shaped support structures carry out rolling centering support on two ends of a shaft-shaped workpiece, the first V-shaped support structure comprises two driving wheels which are symmetrically arranged, and the second V-shaped support structure comprises two driving wheels which are symmetrically arranged. The rotation of the two driving wheels is used as power for driving a workpiece to rotate; the second V-shaped supporting structure comprises a V-shaped notch, and the two ends of the workpiece are supported by the V-shaped notch and the driving wheel, so that the workpiece is located at the horizontal position; the end limiting device is used for limiting one end of the workpiece, so that the rotating workpiece does not generate axial displacement; the rolling device is matched with the first V-shaped supporting structures to clamp and position one end of the workpiece in a three-point mode, rolling supporting is formed at the two ends of the shaft workpiece through the two V-shaped supporting structures, the workpiece is driven to roll, and machining of the shaft workpiece or detection of the shaft workpiece are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to tool fixture technical field, concretely relates to a double V type support intermediate drive device. BACKGROUND

[0002] When the shaft parts are detected or rotated, in order to ensure the machining precision and detection accuracy, the specially designed centering rotating tool is usually used. This kind of tool is very important for ensuring the coaxial degree, roundness and other geometric parameters of the parts.

[0003] For the centering rotating tool used for detecting or rotating the shaft parts, not only the basic function, that is, how to effectively fix and rotate the workpiece, but also the requirements of efficiency, adaptability and other aspects need to be considered. With the progress of technology, this kind of tool is developing towards more intelligent and multifunctional direction, which provides strong support for manufacturing industry.

[0004] In view of the above, it is necessary to provide a double V type support intermediate drive device to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at overcoming the defects existing in the prior art, and provides a double V type support intermediate drive device.

[0006] In order to achieve the above purpose, the technical scheme of the utility model is as follows:

[0007] A double V type support intermediate drive device, comprising a device track seat, which is used as the basis of tool erection and movement, and provides movement guide for the upper structure;

[0008] A first V-shaped support structure and a second V-shaped support structure are arranged on the device track seat, the two V-shaped support structures rollingly support the two ends of the shaft workpiece, the first V-shaped support structure comprises two symmetrically arranged driving wheels, one end of the workpiece is arranged on the two driving wheels, the V-shaped opening formed on the upper side between the two driving wheels forms the limiting of one end of the workpiece, and the rotation of the two driving wheels serves as the power for driving the workpiece to rotate;

[0009] The second V-shaped support structure comprises a V-shaped notch, the second V-shaped support structure supports the other end of the workpiece through the V-shaped notch, and the support formed by the V-shaped notch and the driving wheel on the two ends of the workpiece makes the workpiece in a horizontal position;

[0010] The end limiting device is used for limiting one end of the workpiece, so that the workpiece in rotation does not displace axially;

[0011] Rolling device, which cooperates with the first V-shaped support structure to form a three-point clamping positioning on one end of the workpiece, the rolling device is openable structure, when opening, the V-shaped opening of the first V-shaped support structure is opened, when closing, the rolling device is in contact with the workpiece on the side of the V-shaped opening.

[0012] Further, the first V-shaped support structure includes a first bottom slider, the first bottom slider is slidingly arranged on the device rail seat, a first mounting base is arranged on the first bottom slider, two drive wheels are rotatably connected to one side end face of the first mounting base, the other side end face of the first mounting base is provided with a transmission mechanism for driving the two drive wheels to rotate, one side of the first mounting base is provided with a side platform, and the rolling device is mounted on the side platform.

[0013] Further, the rolling device includes a track base, a sliding seat, a drive oil cylinder, an elastic retaining member, a swing arm, and a pressure wheel, the track base is fixedly arranged on the side platform, and the sliding seat is slidingly arranged on the track base, so that the sliding seat can be adjusted to approach or move away from the drive wheel; one end of the sliding seat is provided with a drive oil cylinder, and the other end is hingedly provided with a swing arm, the other end of the swing arm is rotatably provided with a pressure wheel, the middle part of the swing arm is provided with a cam groove, the free end of the drive oil cylinder is provided with an elastic retaining member, and the output end of the elastic retaining member is provided with a cam cooperating with the cam groove.

[0014] Further, the elastic retaining member includes a cylinder body, a push shaft, a spring, and an adjusting shaft, the cylinder body is fixedly arranged at the free end of the drive oil cylinder, the push shaft, the spring, and the adjusting shaft are sequentially arranged along the axis of the cylinder body, the push shaft is slidingly arranged out of one end of the cylinder body and provided with a cam at the end thereof, the adjusting shaft is screwed with the cylinder body, and the spring is arranged in the cylinder body and connected with the push shaft at one end and connected with the adjusting shaft at the other end.

[0015] Further, the transmission mechanism includes a motor, a drive pulley, two driven pulleys, a tension pulley, and a transmission belt, the two driven pulleys are respectively arranged at the shaft ends of the two drive wheels, the drive pulley and the two driven pulleys are arranged in a triangular shape, so that the transmission belt is arranged in a triangular shape around the outer peripheries of the drive pulley and the two driven pulleys, the tension pulley is arranged inside the triangle formed by the drive pulley and the two driven pulleys, and any side of the triangular transmission belt is concave inward and wound on the tension pulley to form a U-shaped rotation.

[0016] Further, the second V-shaped support structure includes two bevel clamping blocks arranged symmetrically, the inclined surfaces of the two bevel clamping blocks are oppositely arranged to form a V shape, the inclined surfaces are provided with clamping grooves, cylindrical rods are clamped and fixed in the clamping grooves, and the surfaces of the cylindrical rods protrude from the surfaces of the inclined surfaces to form a point-like drag-reducing contact between the cylindrical rods and the surface of the workpiece.

[0017] Further, the end position limiting device comprises a fixed rod, a swing block and a top rod, the swing block is arranged to rotate around the fixed rod, the top rod is arranged on the swing block, the fixed rod and the top rod are arranged in parallel with the workpiece shaft, and the top rod is provided with a round top portion which is in abutting cooperation with the end surface of the workpiece, so that the top rod and the end surface of the workpiece form point contact.

[0018] Further, the second V-shaped support structure and the end position limiting device are arranged on the upper end surface of the first mounting base.

[0019] Further, the second V-shaped support structure and the end position limiting device are arranged on the upper end surface of the second mounting base, the bottom of the second mounting base is provided with a second bottom sliding block, and the second bottom sliding block is arranged in sliding mode on the device track base.

[0020] The double-V-shaped support intermediate driving device has the advantages that the two V-shaped support structures are arranged to form rolling support on the two ends of the shaft workpiece, and the shaft workpiece can be driven to roll at a certain speed, so that the shaft workpiece can be conveniently machined or detected, and the rolling device and the driving wheel form three-point clamping and fixing, so that the positioning accuracy can be ensured, and the shaft workpiece can be effectively driven to rotate. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is the axial measurement view of the first embodiment of the double-V-shaped support intermediate driving device of the utility model; Figure 1 ;

[0022] Figure 2 is the axial measurement view of the first embodiment of the double-V-shaped support intermediate driving device of the utility model; Figure 2 ;

[0023] Figure 3 is the partial enlarged view in the utility model; Figure 1 ;

[0024] Figure 4 is the explosion view of the double-V-shaped support intermediate driving device of the utility model;

[0025] Figure 5 is the longitudinal sectional structure schematic view of the rolling device;

[0026] Figure 6 is the internal structure schematic view of the transmission mechanism;

[0027] Figure 7 is the axial measurement view of the second embodiment; Figure 1 ;

[0028] Figure 8 is the axial measurement view of the second embodiment; Figure 2 ;

[0029] In the figure: 1, device track seat; 2, first V-shaped support structure; 3, second V-shaped support structure; 4, driving wheel; 5, end limiting device; 6, rolling device; 7, first bottom slider; 8, first mounting base; 9, transmission mechanism; 10, side platform; 11, track base; 12, sliding seat; 13, driving oil cylinder; 14, elastic retaining member; 15, swing arm; 16, pressure wheel; 17, cam groove; 18, cylinder body; 19, push shaft; 20, spring; 21, adjusting shaft; 22, motor; 23, driving pulley; 24, driven pulley; 25, tension pulley; 26, transmission belt; 27, beveled clamping block; 28, inclined surface; 29, clamping groove; 30, cylindrical rod; 31, fixed rod; 32, swing block; 33, jacking rod; 34, dome; 35, second mounting base; 36, second bottom slider; 37, workpiece. DETAILED DESCRIPTION

[0030] The specific embodiments of the present application will be further described below in conjunction with the drawings and examples. The following examples are only used to more clearly illustrate the technical solutions of the present application, and cannot be used to limit the protection scope of the present application.

[0031] Example one:

[0032] A double-V-shaped support intermediate driving device, as shown in the figure, comprises a device track seat 1, which is used as the basis of the jig erection and movement and provides movement guidance for the upper structure. In actual use, the device track seat 1 can be installed in a machining center or set on a detection device for the shaft workpiece 37. Figures 1-6

[0033] The first V-shaped support structure 2 and the second V-shaped support structure 3 are arranged on the device track seat 1. The two V-shaped support structures roll and center support the two ends of the shaft-shaped workpiece 37, so that the shaft-shaped workpiece 37 is easy to roll in the two V-shaped support structures for machining.

[0034] ​Specifically, the first V-shaped support structure 2 comprises a first bottom slider 7 which is slidingly arranged on the device rail seat 1, a first mounting base 8 is arranged on the first bottom slider 7, two driving wheels 4 are rotatably connected to one side end face of the first mounting base 8, the other side end face of the first mounting base 8 is provided with a transmission mechanism 9 for driving the rotation of the two driving wheels 4, and a side platform 10 is arranged on one side of the first mounting base 8, and the rolling device 6 is arranged on the side platform 10. In the embodiment, two V-shaped support structures are arranged on the first mounting base 8 at the same time. It can be understood that the two V-shaped support structures in the embodiment can move the position of the workpiece 37 relative to the machining device by moving the position of the first bottom slider 7 on the device rail seat 1, and the two V-shaped support structures are arranged on the first mounting base 8 at the same time, which can be suitable for supporting and positioning smaller shaft workpieces 37,

[0035] The first V-shaped support structure 2 comprises two symmetrically arranged driving wheels 4, one end of the workpiece 37 is arranged on the two driving wheels 4, and the V-shaped opening formed on the upper side between the two driving wheels 4 forms a limit for one end of the workpiece 37, and the rotation of the two driving wheels 4 serves as the power for driving the rotation of the workpiece 37. After the workpiece 37 is arranged on the tooling, the driving wheels 4 can be used to drive the workpiece 37 to keep the axis position and roll, which is convenient for cooperation with machining or detection. Specifically, the transmission mechanism 9 comprises a motor 22, a driving pulley 23, a driven pulley 24, a tension pulley 25 and a transmission belt 26. The driven pulleys 24 are arranged at the shaft ends of the two driving wheels 4, respectively. The driving pulley 23 and the two driven pulleys 24 are arranged in a triangular shape, so that the transmission belt 26 is arranged in a triangular shape around the outer periphery of the driving pulley 23 and the driven pulleys 24. The tension pulley 25 is arranged inside the triangle formed by the driving pulley 23 and the two driven pulleys 24. Any side of the triangular transmission belt 26 is concave inward and wound on the tension pulley 25 to form a U-shaped rotation. The motor 22 is installed on the first mounting base 8. The motor 22 drives the driving pulley 23 to rotate, and drives the two driven pulleys 24 to rotate through the transmission belt 26, so that the two driving wheels 4 rotate. The transmission belt 26 is tightened by the tension pulley 25 to ensure the transmission efficiency.

[0036] The second V-shaped support structure 3 comprises a V-shaped notch, and the second V-shaped support structure 3 supports the other end of the workpiece 37 through the V-shaped notch. The support formed by the V-shaped notch and the driving wheels 4 on the two ends of the workpiece 37 makes the workpiece 37 in a horizontal position.

[0037] Specifically, the second V-shaped support structure 3 comprises two symmetrically arranged bevel clamping blocks 27, the bevel surfaces 28 of the two bevel clamping blocks 27 are oppositely arranged to form a V shape, the bevel surfaces 28 are provided with clamping grooves 29, cylindrical rods 30 are clamped and fixed in the clamping grooves 29, the surfaces of the cylindrical rods 30 protrude from the surfaces of the bevel surfaces 28, and point-like drag reduction contact is formed between the cylindrical rods 30 and the surface of the workpiece 37. In actual use, one end of the workpiece 37 is placed in the second V-shaped support structure 3. In order to facilitate the rotation of the workpiece 37 in the support structure and reduce the resistance, the device adopts the structure of arranging the clamping grooves 29 on the bevel surfaces 28, clamping and fixing the cylindrical rods 30 in the clamping grooves 29, and the surface of the cylindrical rods 30 is higher than the bevel surfaces 28. When the workpiece 37 is placed in the cylindrical rods 30, the circular arc surface of the cylindrical rods 30 and the cylindrical surface of the workpiece 37 form point-like contact perpendicular to each other, thereby greatly reducing the contact area and the contact resistance, and making the workpiece 37 rotate smoothly.

[0038] The rolling device 6 provided on the side platform 10 cooperates with the first V-shaped support structure 2 to form three-point clamping positioning of one end of the workpiece 37. The rolling device 6 is an openable structure. When opened, the V-shaped opening of the first V-shaped support structure 2 is opened to facilitate the feeding or discharging of the workpiece 37. When closed, the rolling device 6 is in rolling contact with the workpiece 37 on the side of the V-shaped opening. When the workpiece 37 is fed or discharged, the rolling device 6 is opened. After the workpiece 37 is placed, the rolling device 6 is closed to press the pressure roller 16 on the surface of the workpiece 37 and apply downward pressure to the workpiece 37, so that the driving wheel 4 can drive the workpiece 37 to rotate well.

[0039] Specifically, the rolling device 6 comprises a track base 11, a sliding seat 12, a driving oil cylinder 13, an elastic retaining member 14, a swing arm 15, and a pressure roller 16. The track base 11 is fixedly arranged on the side platform 10, and the sliding seat 12 is slidingly arranged on the track base 11, so that the sliding seat 12 can be adjusted to approach or move away from the driving wheel 4. One end of the sliding seat 12 is provided with the driving oil cylinder 13, and the other end is hingedly provided with the swing arm 15. The other end of the swing arm 15 is rotatably provided with the pressure roller 16. The middle part of the swing arm 15 is provided with a cam groove 17. The free end of the driving oil cylinder 13 is provided with the elastic retaining member 14, and the output end of the elastic retaining member 14 is provided with a cam cooperating with the cam groove 17. In actual use, the sliding seat 12 can move along the track base 11 to adjust the rolling of the workpiece 37 of different diameters. By extending the air rod of the driving oil cylinder 13, the elastic retaining member 14 moves forward, the cam at the end of the elastic retaining member 14 cooperates with the cam groove 17, the swing arm 15 is driven to rotate, and then the pressure roller 16 moves above the workpiece 37. The elastic pressure applied by the pressure roller 16 to the workpiece 37 is provided by the elastic retaining member 14.

[0040] Specifically, the elastic retaining member 14 includes a cylinder body 18, a push shaft 19, a spring 20, and an adjusting shaft 21. The cylinder body 18 is fixedly mounted on the free end of the drive cylinder 13. The push shaft 19, spring 20, and adjusting shaft 21 are arranged sequentially along the axis of the cylinder body 18. The push shaft 19 slides out from one end of the cylinder body 18 and has a cam at its end. The adjusting shaft 21 is screwed to the cylinder body 18. The spring 20 is located inside the cylinder body 18, with one end connected to the push shaft 19 and the other end connected to the adjusting shaft 21. When the drive cylinder 13 pushes to its limit, the excess stroke is converted into the elastic potential energy of the spring 20, thereby giving the pressure roller 16 a downward elasticity. This elasticity can be adjusted by rotating the adjusting shaft 21, thereby controlling the maximum downward force of the pressure roller 16.

[0041] An end-limiting device 5 is used to limit one end of the workpiece 37, preventing axial displacement of the rotating workpiece 37. Specifically, the end-limiting device 5 includes a fixed rod 31, a swing block 32, and a push rod 33. The fixed rod 31 is equipped with a swing block 32 that rotates around it, and the swing block 32 is equipped with a push rod 33. Both the fixed rod 31 and the push rod 33 are arranged parallel to the axis of the workpiece 37. The push rod 33 has a rounded top 34 that abuts against the end plane of the workpiece 37, forming a point contact between the push rod 33 and the end face of the workpiece 37. This end-limiting device 5 limits the workpiece 37 by abutting against the end of the workpiece 37 with the rounded top 34, and forms a point contact to reduce frictional resistance.

[0042] Example 2:

[0043] The principle of this embodiment is the same as that of Embodiment 1, such as... Figure 7 , 8 As shown, the difference lies in that, in this embodiment, the second V-shaped support structure 3 and the end limiting device 5 are both disposed on the upper end surface of the second mounting base 35, and the bottom of the second mounting base 35 is provided with a second bottom slider 36, which is slidably disposed on the device track seat 1. This allows the spacing between the second V-shaped support structure 3 and the end limiting device 5 relative to the first V-shaped support structure 2 to be adjusted. This embodiment can be used for positioning, processing, or inspection of some long shaft-like workpieces 37.

[0044] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A dual V-type support intermediate drive device characterized by, The device track base (1) is used as the base of the tool setting and moving, and provides moving guide for the upper structure. The first V-shaped support structure (2) and the second V-shaped support structure (3) are arranged on the device track base (1), and the two V-shaped support structures roll and support the two ends of the shaft-shaped workpiece (37). The first V-shaped support structure (2) comprises two symmetrically arranged driving wheels (4), one end of the workpiece (37) is arranged on the two driving wheels (4), the V-shaped opening formed on the upper side between the two driving wheels (4) limits the one end of the workpiece (37), and the rotation of the two driving wheels (4) drives the rotation of the workpiece (37). The second V-shaped support structure (3) comprises a V-shaped notch, the second V-shaped support structure (3) supports the other end of the workpiece (37) through the V-shaped notch, and the supports formed by the V-shaped notch and the driving wheels (4) on the two ends of the workpiece (37) make the workpiece (37) in a horizontal position. The end limiting device (5) is used for limiting the one end of the workpiece (37), so that the workpiece (37) in rotation does not move axially. The rolling device (6) is matched with the first V-shaped support structure (2) to form three-point clamping positioning on one end of the workpiece (37), the rolling device (6) is an openable structure, when opened, the V-shaped opening of the first V-shaped support structure (2) is opened, and when closed, the rolling device (6) rolls and contacts and presses the workpiece (37) on the side of the V-shaped opening.

2. A dual V-type support intermediate drive device according to claim 1, characterized in that, The first V-shaped support structure (2) comprises a first bottom sliding block (7) which is slidingly arranged on the device track base (1), a first mounting base (8) is arranged on the first bottom sliding block (7), the two driving wheels (4) are rotatably connected to one side end face of the first mounting base (8), the other side end face of the first mounting base (8) is provided with a transmission mechanism (9) for driving the rotation of the two driving wheels (4), and a side platform (10) is arranged on one side of the first mounting base (8).

3. A dual V-type support intermediate drive device according to claim 2, characterized in that, The rolling device (6) comprises a track base (11), a sliding seat (12), a driving oil cylinder (13), an elastic retaining member (14), a swing arm (15), and a pressure roller (16), the track base (11) is fixedly arranged on the side platform (10), the sliding seat (12) is slidingly arranged on the track base (11), so that the sliding seat (12) can be adjusted to approach or move away from the driving wheel (4); one end of the sliding seat (12) is provided with the driving oil cylinder (13), the other end is hingedly provided with the swing arm (15), the other end of the swing arm (15) is rotatably provided with the pressure roller (16), the middle part of the swing arm (15) is provided with a cam groove (17), the free end of the driving oil cylinder (13) is provided with the elastic retaining member (14), and the output end of the elastic retaining member (14) is provided with a cam which is matched with the cam groove (17).

4. A dual V-type support intermediate drive device according to claim 3, characterized in that, The elastic holder (14) comprises a cylinder (18), a push shaft (19), a spring (20), and an adjusting shaft (21), the cylinder (18) is fixedly arranged at the free end of the driving oil cylinder (13), the push shaft (19), the spring (20), and the adjusting shaft (21) are sequentially arranged along the axis of the cylinder (18), the push shaft (19) is slidably arranged through one end of the cylinder (18) and is provided with a cam at the end thereof, the adjusting shaft (21) is screwed with the cylinder (18), and the spring (20) is arranged in the cylinder (18) and connected with the push shaft (19) at one end and connected with the adjusting shaft (21) at the other end.

5. A dual V-type support intermediate drive device according to claim 2, characterized in that, The transmission mechanism (9) comprises a motor (22), a driving pulley (23), two driven pulleys (24), a tension pulley (25), and a transmission belt (26), the two driven pulleys (24) are respectively arranged at the shaft ends of the two driving wheels (4), the driving pulley (23) and the two driven pulleys (24) are arranged in a triangular shape, so that the transmission belt (26) is arranged in a triangular shape around the outer peripheries of the driving pulley (23) and the two driven pulleys (24), the tension pulley (25) is arranged inside the triangle formed by the driving pulley (23) and the two driven pulleys (24), and any side of the triangular transmission belt (26) is concave inward and wound on the tension pulley (25) to form a U-shaped rotation.

6. A dual V-type support intermediate drive device according to claim 2, characterized in that, The second V-shaped support structure (3) comprises two symmetrically arranged bevel clamping blocks (27), the bevel surfaces (28) of the two bevel clamping blocks (27) are oppositely arranged to form a V shape, the bevel surfaces (28) are provided with clamping grooves (29), the clamping grooves (29) are clamped and fixed with cylindrical rods (30), the surfaces of the cylindrical rods (30) are protruded from the surfaces of the bevel surfaces (28), and point-like resistance-reducing contact is formed between the cylindrical rods (30) and the surface of the workpiece (37).

7. A dual V-type support intermediate drive device according to claim 6, characterized in that, The end limiting device (5) comprises a fixed rod (31), a swing block (32), and a top rod (33), the swing block (32) is arranged to rotate around the fixed rod (31), the top rod (33) is arranged on the swing block (32), the fixed rod (31) and the top rod (33) are arranged in parallel with the shaft of the workpiece (37), and the top rod (33) is provided with a round top (34) which abuts against the end surface of the workpiece (37) to form point-like contact.

8. A dual V-type support intermediate drive device according to claim 7, characterized in that, The second V-shaped support structure (3) and the end limiting device (5) are arranged on the upper end surface of the first mounting base (8).

9. A dual V-type support intermediate drive device according to claim 7, characterized in that, The second V-shaped support structure (3) and the end limiting device (5) are arranged on the upper end surface of the second mounting base (35), and the bottom of the second mounting base (35) is provided with a second bottom sliding block (36) which is slidably arranged on the device rail seat (1).

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