Multi-shaft clamping tool

Abstract

The utility model relates to a multi-shaft clamping tool which comprises a main connecting frame, a first suspension mechanism and a second suspension mechanism are arranged at the two ends of the main connecting frame in the direction of a first shaft respectively, and the positions of the two suspension mechanisms in the direction of the first shaft are adjustable. The first suspension mechanism comprises a base plate, a linear driving mechanism and a positioning mechanism, wherein the linear driving mechanism and the positioning mechanism are arranged on the base plate. The linear driving mechanism drives the positioning mechanism to reciprocate in the first axis direction. The positioning mechanism comprises a positioning plug used for being matched with the first end of a workpiece to be clamped. The position of the positioning plug in the second axis direction is adjustable; the second suspension mechanism comprises a base frame, a rotary driving mechanism arranged on the base frame and a rotating platform driven by the rotary driving mechanism; the rotating platform comprises a rotating shaft and a supporting plate, the two ends of the rotating shaft are connected with the output end of the rotating driving mechanism and the supporting plate correspondingly, and the supporting plate is used for supporting the second end of the to-be-clamped workpiece; the position of the rotating platform in the third axis direction is adjustable. According to the utility model, automatic grabbing of workpieces with unstable gravity centers is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning tooling, in particular to a multi-axis clamping tooling. Background Art

[0002] In the casting of automotive turbocharger compressors (including both intake and exhaust compressors), the sand cores used for forming the compressor runners are typically larger at one end than the other due to the structural characteristics of the runner shape. This results in an unstable center of gravity for the core structure. Consequently, automated production has traditionally required manual handling of the cores, resulting in low production efficiency. Furthermore, manual handling can lead to production instability, causing the casting line to be stuck with material and unnecessary interruptions to production. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a multi-axis clamping tool, the purpose of which is to realize automatic gripping of workpieces with unstable center of gravity.

[0004] The technical solutions adopted in this utility model are as follows:

[0005] A multi-axis clamping tool comprises a main connecting frame, wherein a first suspension mechanism and a second suspension mechanism are respectively provided at two ends of the main connecting frame along a first axis direction, and the positions of the two suspension mechanisms along the first axis direction are adjustable;

[0006] The first suspension mechanism includes a base plate, a linear drive mechanism and a positioning mechanism provided on the base plate, wherein the linear drive mechanism drives the positioning mechanism to reciprocate along the first axis direction;

[0007] The positioning mechanism includes a positioning plug, the axis of which is arranged along the first axis direction and is used to cooperate with the first end of the workpiece to be clamped;

[0008] The position of the positioning plug along the second axis direction is adjustable;

[0009] The second suspension mechanism includes a base frame, a rotation drive mechanism disposed on the base frame, and a rotating platform driven by the rotation drive mechanism;

[0010] The rotating platform includes a rotating shaft and a support plate, wherein both ends of the rotating shaft are respectively connected to the output end of the rotary drive mechanism and the support plate, and the support plate is used to support the second end of the workpiece to be clamped;

[0011] The position of the rotating platform along the third axis is adjustable;

[0012] The first axis, the second axis, and the third axis are perpendicular to each other.

[0013] Further technical solutions are:

[0014] The positioning plug is in a truncated cone shape, and the end thereof close to the second suspension mechanism is a small-diameter end.

[0015] A pad is provided on the surface of the support plate. The pad is made of soft material and is located at one end away from the rotating shaft.

[0016] A short guide groove is provided on the support plate, and the short guide groove extends along the first axis direction; the end of the rotating shaft is connected to the support plate through the short guide groove, can slide along the short guide groove and be fixed by a locking member, thereby adjusting the position of the support plate along the first axis direction.

[0017] The main connecting frame is provided with a first guide groove, and the first guide groove extends along the first axis direction.

[0018] The base plate is connected to the main connecting frame via the first guide groove, and can slide along the first guide groove and be locked by a locking member.

[0019] The base plate is provided with a mounting plate and a guide rail, the mounting plate is used to mount the linear drive mechanism, and the guide rail extends along the first axis direction;

[0020] The positioning mechanism includes a bracket and an adjustment plate. The top of the bracket is provided with a slider that cooperates with the guide rail. The side of the bracket is provided with a second guide groove that extends along the second axis direction.

[0021] The adjustment plate is used to install the positioning plug. The adjustment plate is connected to the bracket through the second guide groove and can slide along the second guide groove and be locked by the locking member.

[0022] The output end of the linear drive mechanism is provided with a floating connector, and the bracket is provided with a connecting portion connected to the floating connector.

[0023] The base frame is connected to the main connecting frame through the first guide groove, and can slide along the first guide groove and be locked by a locking member.

[0024] The base frame includes an upper connecting plate and a lower connecting plate which are arranged in parallel with each other, and the ends of the upper connecting plate and the lower connecting plate along the third axis are connected by support columns respectively;

[0025] The upper connecting plate is provided with a plurality of connecting holes along the third axis direction, and one or more of the connecting holes are connected to the first guide groove via a connecting member;

[0026] The lower connecting plate is provided with a third guide groove, which extends along the third axis direction; the rotary drive mechanism is connected to the lower connecting plate through the third guide groove, and can slide along the third guide groove and be locked by a locking member.

[0027] The beneficial effects of the utility model are as follows:

[0028] Based on the structural characteristics of the unstable center of gravity of the sand core, the utility model is designed with first and second suspension mechanisms to position the product from both ends. It can be combined with a robot to achieve automatic product grasping, avoiding production interruptions caused by unstable manual production. It can also adjust the position in three directions and meet the needs of products of various sizes and types, with high versatility.

[0029] The utility model utilizes the sliding cooperation between the positioning mechanism and the guide rail and utilizes the linear drive mechanism to provide power, so as to achieve stable grasping, and the process is safe and sensitive.

[0030] The rotating platform of the utility model can be adapted to products with different center of gravity positions by rotating, and can be rotated to other directions before loading to achieve effective avoidance, making it convenient for the products to be fixed with the positioning plugs.

[0031] Other features and advantages of the present invention will be described in the following description or will be understood through implementation of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present utility model.

[0033] Figure 2 This is an exploded schematic diagram of the first suspension mechanism installation structure of an embodiment of the present utility model.

[0034] Figure 3 This is a structural diagram of the working state of an embodiment of the utility model.

[0035] Figure 4 This is a schematic structural diagram of a rotating platform according to an embodiment of the present utility model.

[0036] Figure 5 This is an exploded schematic diagram of the mounting structure of the base frame and the rotation drive mechanism of the second suspension mechanism according to an embodiment of the present invention.

[0037] In the figure: 1. second suspension mechanism; 2. robot arm connecting plate; 3. main connecting frame; 4. first suspension mechanism; 5. positioning mechanism; 6. guide rail; 7. sand core; 11. upper connecting plate; 12. support column; 13. lower connecting plate; 14. pressure plate; 15. rotary drive mechanism; 16. rotating shaft; 17. support plate; 18. pad; 36. first guide groove; 41. linear drive mechanism; 42. mounting plate; 43. base plate; 44. floating connector; 51. slider; 52. bracket; 53. adjustment plate; 54. positioning plug; 111. connecting hole; 131. third guide groove; 151. connecting pin; 171. short guide groove; 521. second guide groove; 522. connecting part. DETAILED DESCRIPTION

[0038] The specific implementation of the present utility model is described below with reference to the accompanying drawings.

[0039] See also Figures 1 to 3 The multi-axis clamping fixture of this embodiment includes a main connecting frame 3, and the two ends of the main connecting frame 3 along the first axis are respectively provided with a first suspension mechanism 4 and a second suspension mechanism 1, and the positions of the two suspension mechanisms along the first axis are adjustable;

[0040] The first suspension mechanism 4 includes a base plate 43, a linear drive mechanism 41 and a positioning mechanism 5 arranged on the base plate 43, wherein the linear drive mechanism 41 drives the positioning mechanism 5 to reciprocate along the first axis direction;

[0041] The positioning mechanism 5 includes a positioning plug 54, the axis of which is arranged along the first axis direction and is used to cooperate with the first end of the sand core 7 of the workpiece to be clamped;

[0042] The position of the positioning plug 54 along the second axis is adjustable;

[0043] The second suspension mechanism 1 includes a base frame, a rotation drive mechanism 15 provided on the base frame, and a rotating platform driven by the rotation drive mechanism 15;

[0044] The rotating platform includes a rotating shaft 16 and a support plate 17. The two ends of the rotating shaft 16 are respectively connected to the output end of the rotary drive mechanism 15 and the support plate 17. The support plate 17 is used to support the second end of the sand core 7 of the workpiece to be clamped;

[0045] The position of the rotating platform along the third axis is adjustable;

[0046] The first axis, the second axis and the third axis are perpendicular to each other, and the first axis, the second axis and the third axis are respectively consistent with the length, height and width directions of the sand core 7.

[0047] The sand core 7 to be clamped in this embodiment has an irregular structure and an unstable center of gravity. The multi-axis clamping fixture of this embodiment can adjust its position in three axes, corresponding to the length, width and height of the sand core, to achieve the fixation and gripping of sand cores of different sizes.

[0048] As a preferred method, the positioning plug 54 is truncated cone-shaped, with the end closest to the second suspension mechanism 1 being the smaller diameter end. The truncated cone shape facilitates insertion into the nozzle (first end) of the sand core 7 for positioning. The positioning plug 54 is preferably made of a soft material such as rubber.

[0049] As a preferred method, a pad 18 is provided on the surface of the support plate 17. The pad 18 is made of soft material such as rubber. The pad 18 is located at one end away from the rotating shaft 16 and can support the other end (second end) of the sand core 7 away from the first end.

[0050] See also Figure 4A short guide groove 171 is provided on the support plate 17, and the short guide groove 171 extends along the first axis direction; the end of the rotating shaft 16 is connected to the support plate 17 through the short guide groove 171, and can slide along the short guide groove 171 and be fixed by a locking member, thereby adjusting the position of the support plate 17 along the first axis direction.

[0051] See also Figure 2 , one or more first guide grooves 36 are provided on the main connecting frame 3, and each first guide groove 36 extends along the first axis direction;

[0052] The base plate 43 is connected to the main connecting frame 3 via the first guide groove 36 and can slide along the first guide groove 36 and be locked by a locking member (e.g., a screw, the same below). By locking at different positions in the first guide groove 36, the position of the base plate 43 and the entire first suspension mechanism 4 can be adjusted along the second axis.

[0053] A mounting plate 42 and a guide rail 6 are provided on the base plate 43. The mounting plate 42 is used to mount the linear drive mechanism 41. The guide rail 6 extends along the first axis direction.

[0054] The positioning mechanism 5 includes a bracket 52 and an adjustment plate 53. A slider 51 is provided on the top of the bracket 52 to cooperate with the guide rail 6. A second guide groove 521 is provided on the side of the bracket 52, which extends along the second axis direction.

[0055] The adjustment plate 53 is used to install the positioning plug 54; the adjustment plate 53 is connected to the bracket 52 through the second guide groove 521, can slide along the second guide groove 521 and be locked by the locking member, locked at different positions of the second guide groove 521, and can realize the position adjustment of the adjustment plate 53 and the positioning plug 54 along the second axis direction.

[0056] The output end of the linear drive mechanism 41 is provided with a floating connector 44 , and the bracket 52 is provided with a connecting portion 522 connected to the floating connector 44 ;

[0057] See also Figure 1 and Figure 5 The base frame is connected to the main connecting frame 3 through the first guide groove 36, and can slide along the first guide groove 36 and be locked by the locking member.

[0058] The base frame includes an upper connecting plate 11 and a lower connecting plate 13 which are arranged parallel to each other in an upper and lower spaced relationship. The ends of the upper connecting plate 11 and the lower connecting plate 13 along the third axis are connected by support columns 12.

[0059] A plurality of connecting holes 111 are provided on the upper connecting plate 11 along the third axis direction, and one or several connecting holes 111 are connected to the first guide groove 36 through a connecting piece; specifically, a pressure plate 14 is provided on the top of the main connecting frame 3, and the pressure plate 14 is connected to the connecting hole 111 through the first guide groove 36 of the bolt. By selecting different connecting holes 111, the position adjustment of the entire base frame and the entire second suspension mechanism 1 along the third axis direction can be realized.

[0060] The lower connecting plate 13 is provided with a third guide slot 131 extending along the third axis. The rotary drive mechanism 15 is connected to the lower connecting plate 13 via this third guide slot 131. The mechanism can slide along this slot and be locked by a locking member, enabling fine adjustment of the rotary drive mechanism 15 relative to the base frame along the third axis. Specifically, a connecting pin 151 is provided at the top of the rotary drive mechanism 15, connecting to the third guide slot 131 via this pin.

[0061] As an option, the linear drive mechanism 41 adopts a telescopic cylinder; the rotary drive mechanism 15 adopts a rotary cylinder.

[0062] As an optional method, the top of the main connecting frame 3 is connected to the robotic arm through the robotic arm connecting plate 2.

[0063] During operation, the second suspension mechanism 1 is first moved to adjust the length of the sand core 7, the rotary drive mechanism 15 is then moved to adjust the width of the sand core 7, and finally the adjustment plate 53 is moved to adjust the height of the sand core 7. Once these adjustments are completed, the fixed locking member completes the position adjustment, allowing for automated production. The linear drive mechanism 41 is used to extend the positioning plug 54 into the nozzle of the sand core 7, and the rotary drive mechanism 15 is then used to adjust the position of the support plate 17 to support the sand core.

[0064] Those skilled in the art will understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A multi-axis clamping tool, characterized in that: It comprises a main connecting frame (3), wherein the main connecting frame (3) is provided with a first suspension mechanism (4) and a second suspension mechanism (1) at both ends along a first axis direction, respectively, and the positions of the two suspension mechanisms along the first axis direction are adjustable; The first suspension mechanism (4) comprises a base plate (43), a linear drive mechanism (41) and a positioning mechanism (5) arranged on the base plate (43), wherein the linear drive mechanism (41) drives the positioning mechanism (5) to reciprocate along a first axis direction; The positioning mechanism (5) comprises a positioning plug (54), the axis of which is arranged along the first axis direction and is used to cooperate with the first end of the workpiece to be clamped; The position of the positioning plug (54) along the second axis direction is adjustable; The second suspension mechanism (1) comprises a base frame, a rotation drive mechanism (15) arranged on the base frame, and a rotating platform driven by the rotation drive mechanism (15); The rotating platform comprises a rotating shaft (16) and a supporting plate (17), wherein both ends of the rotating shaft (16) are respectively connected to the output end of the rotating drive mechanism (15) and the supporting plate (17), and the supporting plate (17) is used to support the second end of the workpiece to be clamped; The position of the rotating platform along the third axis is adjustable; The first axis, the second axis, and the third axis are perpendicular to each other.

2. The multi-axis clamping fixture according to claim 1, characterized in that: The positioning plug (54) is in a truncated cone shape, and the end thereof close to the second suspension mechanism (1) is a small-diameter end.

3. The multi-axis clamping fixture according to claim 1, characterized in that: A pad (18) is provided on the surface of the support plate (17). The pad (18) is made of a soft material and is located at an end away from the rotating shaft (16).

4. The multi-axis clamping fixture according to claim 1, characterized in that: The support plate (17) is provided with a short guide groove (171), and the short guide groove (171) extends along the first axis direction; the end of the rotating shaft (16) is connected to the support plate (17) through the short guide groove (171), and can slide along the short guide groove (171) and be fixed by a locking member, thereby adjusting the position of the support plate (17) along the first axis direction.

5. The multi-axis clamping fixture according to claim 1, characterized in that: The main connecting frame (3) is provided with a first guide groove (36), and the first guide groove (36) extends along a first axial direction.

6. The multi-axis clamping fixture according to claim 5, characterized in that: The base plate (43) is connected to the main connecting frame (3) via the first guide groove (36), and can slide along the first guide groove (36) and be locked by a locking member.

7. The multi-axis clamping fixture according to claim 6, characterized in that: A mounting plate (42) and a guide rail (6) are provided on the base plate (43), the mounting plate (42) is used to mount the linear drive mechanism (41), and the guide rail (6) extends along the first axis direction; The positioning mechanism (5) comprises a bracket (52) and an adjustment plate (53); a slider (51) cooperating with the guide rail (6) is provided on the top of the bracket (52); a second guide groove (521) extending along the second axis is provided on the side of the bracket (52); The adjusting plate (53) is used to install the positioning plug (54). The adjusting plate (53) is connected to the bracket (52) through the second guide groove (521) and can slide along the second guide groove (521) and be locked by a locking member.

8. The multi-axis clamping fixture according to claim 7, characterized in that: The output end of the linear drive mechanism (41) is provided with a floating connector (44), and the bracket (52) is provided with a connecting portion (522) connected to the floating connector (44).

9. The multi-axis clamping fixture according to claim 5, characterized in that: The base frame is connected to the main connecting frame (3) via the first guide groove (36), and can slide along the first guide groove (36) and be locked by a locking member.

10. The multi-axis clamping fixture according to claim 9, characterized in that: The base frame comprises an upper connecting plate (11) and a lower connecting plate (13) which are arranged in parallel with each other at an upper and lower interval, and the upper connecting plate (11) and the lower connecting plate (13) are connected at both ends along the third axis direction by support columns (12). The upper connecting plate (11) is provided with a plurality of connecting holes (111) along the third axis direction, and one or more of the connecting holes (111) are connected to the first guide groove (36) via a connecting member; The lower connecting plate (13) is provided with a third guide groove (131) extending along the third axis direction; the rotary drive mechanism (15) is connected to the lower connecting plate (13) via the third guide groove (131), and can slide along the third guide groove (131) and be locked by a locking member.

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