Workpiece clamping steering mechanism

Abstract

The utility model provides a workpiece clamping steering mechanism which comprises a machine base, a pipe clamping barrel is rotationally connected to the machine base, a conveying channel which is through in the axial direction and allows a workpiece to pass through is arranged in the pipe clamping barrel, and a rotation driving structure capable of driving the pipe clamping barrel to rotate in the circumferential direction is arranged on the machine base. One end of the pipe clamping barrel is provided with a plurality of clamping parts which are circumferentially distributed with the conveying channel as the center and can elastically deform, the outer side wall of each clamping part is provided with a guide face with the thickness changing in the axial direction, the machine base is connected with a moving block, and the machine base is provided with a moving driving structure for pushing the moving block to move in the axial direction. The moving block is connected with a pushing component which can be arranged on the clamping portion in a sleeved mode in the moving process of the moving block and push the guide face to enable the clamping portion to be close to and clamp a workpiece, and the pushing component is connected to the moving block in a rotating mode with the conveying channel as the center. The workpiece clamping steering mechanism is convenient to machine pipe fittings and efficient.

Description

Technical Field

[0001] The utility model specifically relates to a steering mechanism for clamping a workpiece. Background Art

[0002] In modern industrial production, pipe processing, especially the processing of capillary metal pipes, generally uses processing equipment for processing capillary metal pipes. The processing equipment is generally provided with a conveying device for conveying the pipes, so that the pipes can be conveyed along the axial direction. The processing equipment is also provided with processing devices for straightening, piercing, bending and other processes on the pipes. The general processing procedures only require the pipes to be conveyed along the axial direction, but in some special processing procedures, the pipes need to be rotated circumferentially or at a certain angle. This often requires additional processing equipment and is difficult to achieve on the same equipment, resulting in complicated processing procedures, low processing efficiency and high processing costs.

[0003] The utility model is produced based on the above-mentioned shortcomings. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provide a workpiece clamping and steering mechanism which is convenient for processing pipe fittings and has high efficiency.

[0005] The utility model is realized by the following technical solutions:

[0006] A workpiece clamping steering mechanism comprises a machine base, to which a clamping tube is rotatably connected, and a conveying channel is axially penetrated in the clamping tube for the workpiece to pass through, and a rotating driving structure capable of driving the clamping tube to rotate circumferentially is provided on the machine base, and one end of the clamping tube has a plurality of clamping parts which are circumferentially distributed around the conveying channel and can be elastically deformed, and a guide surface whose thickness varies along the axial direction is provided on the outer wall of the clamping part, and a moving block is connected to the machine base, and a moving driving structure is provided on the machine base to push the moving block to move axially, and the moving block is connected to a pushing component which can be sleeved on the clamping part and push the guide surface during its movement so as to make the clamping part close to clamp the workpiece, and the pushing component is rotatably connected to the moving block around the conveying channel.

[0007] In the above-mentioned workpiece clamping steering mechanism, the moving block is provided with a bearing that can be sleeved on the outside of the clamping portion, and the inner ring of the bearing constitutes the pushing component.

[0008] As described above, in the clamping workpiece steering mechanism, one end of the clamping tube is provided with a dividing groove distributed along the circumferential direction and extending toward the middle thereof, and the dividing groove divides the end of the clamping tube into the clamping portion.

[0009] In the above-mentioned workpiece clamping and steering mechanism, the end of the clamping portion is provided with a first guiding slope for guiding the workpiece into the conveying channel.

[0010] In the above-mentioned workpiece clamping steering mechanism, the moving drive structure includes a linear drive member, and the output shaft of the linear drive member is connected to the moving block.

[0011] As described above, the workpiece clamping steering mechanism, the rotation drive structure includes a rotation drive member, the output shaft of the rotation drive member is connected to a first gear, the base is rotatably connected to a clamping tube connected to a second gear transmission-connected to the first gear.

[0012] As described above, the clamping workpiece steering mechanism, the rotation drive structure also includes a transmission gear set, the transmission gear set is composed of a third gear or a plurality of transmission-connected third gears, the third gear is rotationally connected to the machine base, the first gear and the second gear are both transmission-connected to the transmission gear, so that the first gear and the second gear are transmission-connected.

[0013] In the above-mentioned workpiece clamping and steering mechanism, a bearing is provided between the third gear and the machine base.

[0014] In the above-mentioned workpiece clamping and steering mechanism, a bearing is provided between the clamping tube and the machine base.

[0015] As described above, the clamping workpiece steering mechanism has a blocking block on the machine base at a position corresponding to the conveying channel, two linear drive members are respectively arranged on both sides of the blocking block, and a feed channel aligned with the conveying channel is provided in the blocking block, and the feed channel is used to guide the workpiece into the second guide slope of the feed channel.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] 1. When the workpiece-clamping steering mechanism of the utility model is working, the workpiece can be conveyed forward in the conveying channel along the axial direction. When the workpiece needs to be rotated circumferentially, the pushing component pushes the guide surface to make the clamping parts close together to clamp or move away to release, and then the clamping tube is driven to rotate by the rotating driving structure, so as to realize the circumferential rotation of the workpiece. In this process, since the pushing component is connected to the moving block with the conveying channel as the center, the rotation of the clamping tube is not affected, that is, the rotating driving structure and the clamping tube can be connected or disconnected at any time. The above structure can greatly improve the production efficiency, and the structure is simple and ingenious, and the processing is convenient;

[0018] 2. The pushing component of the workpiece-clamping steering mechanism of the utility model adopts the inner ring of the rolling bearing. By cleverly utilizing this structure, the transmission connection or disconnection can be cleverly realized at any time and quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the workpiece clamping and steering mechanism of the utility model;

[0020] Figure 2 It is a cross-sectional schematic diagram of the workpiece clamping and steering mechanism of the utility model;

[0021] Figure 3 It is an exploded schematic diagram of the dynamic clamping assembly of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the tube clamp of the utility model;

[0023] Figure 5 It is a cross-sectional schematic diagram of the tube clamp of the utility model. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings:

[0025] The directions described in the specification of the present invention, such as "up", "down", "left", "right", "front", "rear", etc., are based on the directions of the accompanying drawings and are intended to facilitate description of the relationship between the various components. In this embodiment, the upstream of the long tube conveying is the front, the downstream of the long tube conveying is the rear, and the vertical direction of the long tube conveying direction is the left and right direction. It does not indicate a unique or absolute positional relationship between the various components, but is only one implementation method of the utility model and is not a limitation on its implementation method.

[0026] This embodiment provides a workpiece clamping and steering mechanism, which is mainly used for processing pipes, mainly metal pipes, especially capillary metal pipes with smaller diameters. Of course, it can also be used for processing other pipes, such as Figure 1 and Figure 2As shown, the workpiece clamping steering mechanism includes a machine base 1, on which a clamping tube 2 is rotatably connected. The clamping tube 2 is cylindrical and has a channel therein, that is, the clamping tube 2 has a conveying channel 20 that runs axially through and allows the workpiece to pass through. The workpiece is conveyed on the equipment by a conveyor belt or a manipulator, so that the workpiece can be conveyed forward along the axial direction. The machine base 1 is provided with a rotating driving structure 3 that can drive the clamping tube 2 to rotate circumferentially. One end of the clamping tube 2 has a plurality of clamping parts 21 that are distributed circumferentially with the conveying channel 20 as the center and can be elastically deformed. The outer wall of the clamping part 21 is provided with a guide surface 211 whose thickness varies along the axial direction. The machine base 1 is connected with a moving block 4. The machine base 1 is provided with a moving driving structure 5 that pushes the moving block 4 to move axially. The moving block 4 is connected with a pushing component 41 that can be sleeved on the clamping part 21 during its movement and push the guide surface 211 so that the clamping part 21 is close to clamp the workpiece. Figure 2 As shown, in this embodiment, the guide surface 211 gradually tilts outward from the side close to the moving block 4 to the side away from the moving block 4. Of course, as another way, the guide surface 211 can also be gradually tilted outward from the side away from the moving block 4 to the side close to the moving block 4. The pushing component 41 is rotatably connected to the moving block 4 with the conveying channel 20 as the center. When working, the workpiece can be conveyed forward in the conveying channel 20 along the axial direction. When the workpiece needs to be rotated circumferentially, the moving block 4 is pushed to move by the mobile driving structure 5. During the movement, the pushing component 41 is connected to the moving block 4 with the conveying channel 20 as the center. The component 41 pushes the guide surface 211 so that the clamping part 21 moves closer to clamp or farther away to release. At this time, the clamp tube 2 clamps the workpiece, and then drives the clamp tube 2 to rotate through the rotating drive structure 3, so as to realize the circumferential rotation of the workpiece. In this process, since the pushing component 41 is connected to the moving block 4 with the conveying channel 20 as the center, the rotation of the clamp tube 2 is not affected, that is, the rotating drive structure 3 and the clamp tube 2 can be connected or disconnected at any time. The above structure can greatly improve the production efficiency, and the structure is simple and ingenious, and the processing is convenient.

[0027] As a preference, Figures 1 to 3 As shown, the moving block 4 is provided with a bearing that can be sleeved on the outside of the clamping part 21. The bearing is a component used to support a mechanical rotating body. A rolling bearing is used. In this type of bearing, a rolling body (such as a ball, a cylindrical roller, a tapered roller, etc.) rolls between an inner ring and an outer ring, converting sliding friction into rolling friction, greatly reducing friction and wear. The inner ring of the bearing constitutes the pushing component 41. With this structure, it is possible to cleverly achieve transmission connection at any time and disconnection of transmission connection at any time.

[0028] As a preference, Figure 4 and Figure 5As shown, one end of the clamp tube 2 is provided with a dividing groove 22 distributed along the circumferential direction and extending toward the middle thereof, and the dividing groove 22 divides the clamp tube 2 into the clamping portion 21 , wherein, preferably, an anti-stress concentration hole 221 is provided at the end of the dividing groove 22 .

[0029] As a preference, Figure 4 and Figure 5 As shown, the end of the clamping portion 21 is provided with a first guiding slope 212 for guiding the workpiece into the conveying channel 20. Of course, guiding slopes can also be provided at both ends of the clamp tube 2 to facilitate smooth conveying of the workpiece.

[0030] As a preference, Figures 1 to 3 As shown, the mobile drive structure 5 includes two linear drive components 51, and the output shafts of the two linear drive components 51 are connected to the moving block 4, wherein the linear drive component 51 can adopt a general cylinder, and the cylinder refers to a cylindrical metal part that guides the piston to perform linear reciprocating motion in the cylinder. The air converts thermal energy into mechanical energy by expansion in the engine cylinder; the gas is compressed by the piston in the compressor cylinder to increase the pressure, and the output shaft of the cylinder is connected to the moving block 4. The linear drive component 51 can also adopt a linear motor, and the output shaft of the linear motor is connected to the moving block 4. The linear motor (Linear Motor) is a motor that directly converts electrical energy into linear motion mechanical energy. The linear motor directly generates linear thrust, so it can provide higher positioning accuracy, faster response speed and smoother motion performance in many applications.

[0031] As a preference, Figures 1 to 3 As shown, the rotation driving structure 3 includes a rotation driving member 31, which can be a general motor. The output shaft of the rotation driving member 31 is connected to a first gear 32, and the base 1 is rotatably connected to the clamp tube 2, which is connected to the second gear 33 in transmission connection with the first gear 32.

[0032] As a further preferred solution, Figures 1 to 3 As shown, the rotation driving structure 3 also includes a transmission gear set, which is composed of a third gear 34 or a plurality of transmission-connected third gears 34, the third gear 34 is rotationally connected to the base 1, and the first gear 32 and the second gear 33 are both transmission-connected to the transmission gear, so that the first gear 32 and the second gear 33 are transmission-connected.

[0033] Preferably, a bearing is provided between the third gear 34 and the machine base 1 ; and a bearing is provided between the clamping tube 2 and the machine base 1 .

[0034] As a preference, Figures 1 to 3As shown, a blocking block 11 is provided on the machine base 1 at a position corresponding to the conveying channel 20, and two linear drive members 51 are respectively arranged on both sides of the blocking block 11. A feeding channel 10 aligned with the conveying channel 20 is provided in the blocking block 11, and the feed channel 10 is used to guide the workpiece into the second guide slope 111 of the feed channel 10.

[0035] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A workpiece clamping and steering mechanism, characterized in that: The invention comprises a machine base (1), wherein a clamping tube (2) is rotatably connected to the machine base (1), wherein the clamping tube (2) has a conveying channel (20) penetrating along the axial direction and allowing a workpiece to pass through, wherein a rotation driving structure (3) capable of driving the clamping tube (2) to rotate circumferentially is provided on the machine base (1), wherein one end of the clamping tube (2) has a plurality of clamping parts (21) which are distributed circumferentially with the conveying channel (20) as the center and can be elastically deformed, wherein the outer wall of the clamping part (21) is provided with a thickness varying along the axial direction. The machine base (1) is connected to a moving block (4), and the machine base (1) is provided with a moving driving structure (5) for pushing the moving block (4) to move along the axial direction. The moving block (4) is connected to a pushing component (41) which can be sleeved on the clamping portion (21) during its movement and push the guide surface (211) so as to make the clamping portion (21) move closer to clamp the workpiece. The pushing component (41) is connected to the moving block (4) in a rotatable manner with the conveying channel (20) as the center.

2. The workpiece clamping and steering mechanism according to claim 1, characterized in that: The moving block (4) is provided with a bearing that can be sleeved on the outside of the clamping portion (21), and the inner ring of the bearing constitutes the pushing component (41).

3. The workpiece clamping and steering mechanism according to claim 1, characterized in that: One end of the clamp tube (2) is provided with a dividing groove (22) distributed along the circumferential direction and extending toward the middle thereof, and the dividing groove (22) divides the end of the clamp tube (2) into the clamping portion (21).

4. The workpiece clamping and steering mechanism according to claim 3, characterized in that: The end of the clamping portion (21) is provided with a first guiding inclined surface (212) for guiding the workpiece into the conveying channel (20).

5. The workpiece clamping and steering mechanism according to claim 1, characterized in that: The moving drive structure (5) comprises a linear drive member (51), and the output shaft of the linear drive member (51) is connected to the moving block (4).

6. The workpiece clamping and steering mechanism according to claim 1, characterized in that: The rotary drive structure (3) comprises a rotary drive member (31), the output shaft of the rotary drive member (31) is connected to a first gear (32), and the base (1) is rotatably connected to a clamping tube (2) and is connected to a second gear (33) drivingly connected to the first gear (32).

7. The workpiece clamping and steering mechanism according to claim 6, characterized in that: The rotation driving structure (3) also includes a transmission gear set, which is composed of a third gear (34) or a plurality of third gears (34) that are transmission-connected. The third gear (34) is rotationally connected to the machine base (1), and the first gear (32) and the second gear (33) are both transmission-connected to the transmission gear, so that the first gear (32) and the second gear (33) are transmission-connected.

8. The workpiece clamping and steering mechanism according to claim 7, characterized in that: A bearing is provided between the third gear (34) and the machine base (1).

9. The workpiece clamping and steering mechanism according to claim 1, characterized in that: A bearing is provided between the tube clamping tube (2) and the machine base (1).

10. The workpiece clamping and steering mechanism according to claim 5, characterized in that: A blocking block (11) is provided on the machine base (1) at a position corresponding to the conveying channel (20), two linear drive members (51) are respectively arranged on both sides of the blocking block (11), a feeding channel (10) aligned with the conveying channel (20) is provided in the blocking block (11), and the feeding channel (10) is used to guide the workpiece into the second guide slope (111) of the feeding channel (10).

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