Clamping mechanism

Abstract

The utility model discloses a clamping mechanism, which relates to the technical field of mechanical carrying, and comprises a supporting part, a clamping part and a driving part, the number of the clamping plates is two, and the two clamping plates are arranged on the two sides of the supporting part; the driving rod is arranged on the supporting part and is in driving connection with one ends of the two clamping plates; the elastic piece is arranged in the supporting part, the two ends of the elastic piece are connected with the supporting part and the output end of the driving rod respectively, and the driving rod moves in the axial direction of the driving rod so that the elastic piece can be compressed and drive the other ends of the two clamping plates to be away from each other to loosen a workpiece. And the elastic piece rebounds, so that the ends, away from the driving rod, of the two clamping plates get close to each other to grasp the workpiece. According to the technical scheme provided by the utility model, the automatic clamping of the workpiece is realized, the clamping and carrying efficiency is improved, and the clamping stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical handling, in particular to a clamping mechanism. Background Art

[0002] The segmented stator is welded into a circle by multiple segmented stators. When assembling the motor, each segmented stator needs to be wound. By placing each segmented stator on the corresponding fixture and then winding the wire, the positioning accuracy is relatively high. The traditional handling method is to manually move the segmented stator and place it on the fixture, or take it away from the fixture after winding is completed, but the manual handling operation efficiency is low. Utility Model Content

[0003] The main purpose of the utility model is to provide a clamping mechanism, aiming to improve the handling efficiency of the segmented stators.

[0004] In order to achieve the above-mentioned purpose, the clamping mechanism proposed by the utility model comprises:

[0005] Supporting part;

[0006] Two clamping plates are provided, and the two clamping plates are arranged on both sides of the supporting part;

[0007] A driving rod, disposed on the supporting portion and drivingly connected to one end of the two clamping plates; and

[0008] An elastic member is arranged in the supporting portion, and two ends of the elastic member are respectively connected to the supporting portion and the output end of the driving rod. The driving rod moves along its axial direction so that the elastic member is compressed and drives the other ends of the two clamps to move away from each other to loosen the workpiece. The elastic member rebounds so that the two clamps move closer to each other at one end away from the driving rod to grip the workpiece.

[0009] In one embodiment, the support portion comprises:

[0010] A top plate, provided with a through hole, through which the driving rod passes axially;

[0011] A side plate, arranged on one side of the top plate, two side plates are provided, and the two side plates are arranged oppositely at two ends of the top plate;

[0012] A bottom plate is arranged opposite to the top plate, and two ends of the bottom plate are connected to an end of the side plate away from the top plate;

[0013] The two clamping plates are arranged on the side of the top plate where the side plate is arranged, and the two clamping plates are arranged opposite to each other and adjacent to the side plate, and one end of the elastic member away from the driving rod is connected to the bottom plate.

[0014] In one embodiment, the clamping plate includes a plate body and a clamping end and a positioning end at both ends of the plate body, and the clamping mechanism also includes a connecting rod, one end of the connecting rod is rotatably connected to the output end of the driving rod, and the other end is rotatably connected to the positioning end, the clamping end protrudes from the bottom plate, and the two sides of the plate body are rotatably connected to the side plates.

[0015] In one embodiment, the clamping mechanism also includes a pin shaft, which is used to connect the connecting rod and the driving rod. The side plate is provided with a slide groove, which extends along the axial direction of the driving rod. The end of the pin shaft is located in the slide groove and is slidably connected to the slide groove.

[0016] In one embodiment, the outer periphery of the pin shaft is in contact with the inner wall of the sliding groove.

[0017] In one embodiment, the clamping mechanism also includes a connecting seat, a positioning groove is provided on the top plate, the connecting seat is arranged in the positioning groove and is fixedly connected to the top plate, and a through hole is provided on the connecting seat that is connected to the through hole, and one end of the driving rod passes through the through hole in turn and connects the connecting rod and the elastic member with the through hole.

[0018] In one embodiment, the clamping end is inclined inwardly toward one side of the elastic member.

[0019] In one embodiment, the elastic member is a spring.

[0020] In the technical solution of the utility model, the support part has an open accommodating space, and two opposite sides of the accommodating space are open. A clamping plate is respectively arranged on the two sides of the open support part, one end of the clamping plate is in the accommodating space, and the other end is outside the accommodating space. An elastic member is arranged in the accommodating space, and one end of the driving rod drives the connecting clamping plate in the accommodating space, and the two clamping plates are opened or clamped by axial movement of the driving rod. One end of the driving rod in the accommodating space is also connected to one end of the elastic member, and the other end of the elastic member is connected to the support part, so that when the driving member moves axially and toward the elastic member, the elastic member is compressed, and at this time the clamping plate is away from the driving member. One end of the moving rod opens outward, that is, the distance between the ends of the two clamping plates away from the driving rod becomes larger, so that the clamped workpiece can be put down, or wait for a new workpiece to be clamped. When the clamping plate reaches a suitable position and is ready to clamp a new workpiece, the elastic member rebounds, causing the driving rod to move in the direction away from the elastic member, and the driving rod moves away from the clamping plate, driving the end of the clamping plate away from the driving rod to clamp inward to clamp the workpiece. Through the setting of the elastic member, the clamping plate can automatically clamp the workpiece after it is placed in, thereby improving the efficiency of clamping and carrying. When the workpiece is clamped by the clamping plate, it is in surface contact with the workpiece, thereby expanding the contact area and improving the stability of clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0022] Figure 1 A structural schematic diagram of an embodiment of a clamping mechanism provided by the utility model;

[0023] Figure 2 A structural schematic diagram of an embodiment of a support portion provided by the utility model;

[0024] Figure 3 A schematic diagram of the structure of the clamping plate provided by the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the splint provided by the utility model when it is opened.

[0026] Description of Figure Numbers:

[0027] 100, support part; 110, top plate; 111, through hole; 112, positioning groove; 120, side plate; 121, slide groove; 122, positioning hole; 130, bottom plate; 131, limit groove; 140, connecting seat;

[0028] 200, clamping plate; 210, plate body; 220, clamping end; 230, positioning end;

[0029] 300, driving rod;

[0030] 400, elastic parts;

[0031] 500, connecting rod;

[0032] 600, pin shaft; 610, connecting shaft; 620, rotating shaft;

[0033] 700. Workpiece.

[0034] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0037] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0038] The segmented stator is welded into a circle by multiple segmented stators. When assembling the motor, each segmented stator needs to be wound. By placing each segmented stator on the corresponding fixture and then winding the wire, the positioning accuracy is relatively high. The traditional handling method is to manually move the segmented stator and place it on the fixture, or take it away from the fixture after winding is completed, but the manual handling operation efficiency is low.

[0039] The utility model provides a clamping mechanism.

[0040] See also Figure 1 , Figure 3 and Figure 4 In one embodiment of the utility model, the clamping mechanism comprises:

[0041] Supporting part 100;

[0042] Two clamping plates 200 are provided, and the two clamping plates 200 are arranged on both sides of the supporting part 100;

[0043] A driving rod 300 is disposed on the supporting portion 100 and is drivingly connected to one end of the two clamping plates 200; and

[0044] The elastic member 400 is disposed in the support portion 100. The two ends of the elastic member 400 are respectively connected to the support portion 100 and the output end of the driving rod 300. The driving rod 300 moves along its axial direction so that the elastic member 400 is compressed and drives the other ends of the two clamps 200 to move away from each other to loosen the workpiece 700. The elastic member 400 rebounds so that the ends of the two clamps 200 away from the driving rod 300 move closer to each other to grip the workpiece 700.

[0045] In the technical solution of the utility model, the support part 100 has an open accommodating space, and two opposite sides of the accommodating space are open. A clamping plate 200 is respectively arranged on the two sides of the opening of the support part 100, one end of the clamping plate 200 is in the accommodating space, and the other end is outside the accommodating space. An elastic member 400 is arranged in the accommodating space, and one end of the driving rod 300 drives the connecting clamping plate 200 in the accommodating space, and the two clamping plates 200 are opened or clamped by axially moving the driving rod 300. One end of the driving rod 300 in the accommodating space is also connected to one end of the elastic member 400, and the other end of the elastic member 400 is connected to the support part 100, so that when the driving member moves axially and toward the elastic member 400, the elastic member 400 is compressed. At this time, the clamping plate 200 is away from one end of the driving rod 300. When the clamping plates 200 are in a suitable position and ready to clamp a new workpiece 700, the elastic member 400 rebounds, causing the drive rod 300 to move in a direction away from the elastic member 400, and the drive rod 300 moves away from the clamping plates 200, driving the end of the clamping plates 200 away from the drive rod 300 to clamp inwardly, so as to clamp the workpiece 700. By setting the elastic member 400, the clamping plates 200 can automatically clamp the workpiece 700 after the workpiece 700 is placed therein, thereby improving the efficiency of clamping and handling. When the workpiece 700 is clamped by the clamping plates 200, it is in surface contact with the workpiece 700, thereby expanding the contact area and improving the stability of clamping.

[0046] Specifically, the driving rod 300 and the elastic member 400 are preferably coaxially arranged, so that when the driving rod 300 moves, force can be better applied to the elastic member 400 to compress the elastic member 400. The elastic member 400 can be fixedly connected to the support portion 100 and the driving rod 300, or can be in abutment, as long as force can be generated on the elastic member 400 so that the elastic member 400 can be compressed or rebounded; in addition, a linear driving member can be arranged at the end of the driving rod 300 away from the elastic member 400, and the linear driving member is connected to the driving rod 300 so that the driving rod 300 moves axially. The linear driving member can adopt a structure that can move linearly, such as a cylinder, a hydraulic cylinder or an electric telescopic cylinder. The piston rod is connected to the driving rod 300, and the axial movement of the driving rod 300 is achieved by the expansion and contraction of the piston rod in the cylinder body; Figure 4 As shown, when the clamped workpiece 700 needs to be released, the piston rod extends out of the cylinder body, causing the drive rod 300 to move and compress the elastic member 400. At this time, the end of the clamping plate 200 away from the drive rod 300 opens; Figure 3 As shown, when it is necessary to clamp the workpiece 700, the driving rod 300 can be driven to move in the opposite direction by the retraction of the piston rod, or by the rebound of the elastic member 400, and the clamping plate 200 is clamped away from the end of the driving rod 300; when it is inconvenient to connect the linear driving member to the end of the driving rod 300 away from the elastic member 400, the driving rod 300 can be pushed toward the elastic member 400 only by manual or other structures. When the two clamping plates 200 are opened, the force applied to the driving rod 300 can be cancelled, and the two clamping plates 200 are automatically clamped under the rebound of the elastic member 400; in this embodiment, the workpiece 700 is a segmented stator. Due to the special structure of the stator, the top of the segmented stator is an arc surface, so the contact surface between the support part 100 and the segmented stator is set to an arc surface, but it is not limited to this setting. The support part 100 can also be set to a straight surface. When the curvature of the contact surface between the support part 100 and the workpiece 700 is consistent, the clamping is more stable.

[0047] In an embodiment of the present invention, the support portion 100 includes:

[0048] The top plate 110 is provided with a through hole 111, and the driving rod 300 passes through the through hole 111 along the axial direction;

[0049] A side plate 120 is disposed on one side of the top plate 110. Two side plates 120 are provided, and the two side plates 120 are disposed oppositely at two ends of the top plate 110.

[0050] The bottom plate 130 is disposed opposite to the top plate 110, and both ends of the bottom plate 130 are connected to an end of the side plate 120 away from the top plate 110;

[0051] The two clamping plates 200 are disposed on the side of the top plate 110 where the side plate 120 is disposed, and the two clamping plates 200 are disposed opposite to each other and adjacent to the side plate 120 . One end of the elastic member 400 away from the driving rod 300 is connected to the bottom plate 130 .

[0052] Please refer to Figure 1 and Figure 2 The support portion 100 includes a top plate 110, a side plate 120 and a bottom plate 130. The top plate 110 and the bottom plate 130 are arranged opposite to each other. Two side plates 120 are provided and are arranged between the top plate 110 and the bottom plate 130. The two side plates 120 are arranged opposite to each other, so that the support portion 100 forms a receiving space with open two sides. The two clamping plates 200 are arranged on the open two sides of the support portion 100. The elastic member 400 is fixedly connected to one side of the bottom plate 130 facing the top plate 110 in the receiving space at one end. Specifically, a limiting groove 131 is provided on the bottom plate 130. The elastic member 400 is connected to the limiting groove 131, which can prevent the elastic member 400 from shifting and improve the clamping stability. A through hole 111 is provided in the middle of the top plate 110. The driving rod 300 passes through the through hole 111 and is connected to the elastic member 400 in the receiving space, so as to compress the spring under the limit of the bottom plate 130 when the driving rod 300 moves.

[0053] In an embodiment of the utility model, the clamping plate 200 includes a plate body 210 and a clamping end 220 and a positioning end 230 at both ends of the plate body 210. The clamping mechanism also includes a connecting rod 500. One end of the connecting rod 500 is rotatably connected to the output end of the driving rod 300, and the other end is rotatably connected to the positioning end 230. The clamping end 220 protrudes from the bottom plate 130, and both sides of the plate body 210 are rotatably connected to the side plates 120.

[0054] Please refer to Figure 1 , Figure 3 and Figure 4 The clamping mechanism includes two connecting rods 500, one connecting rod 500 corresponds to one clamping plate 200, the driving rod 300 is located between the two clamping plates 200, one end of the connecting rod 500 is rotatably connected to the driving rod 300, and the other end is rotatably connected to the positioning end 230 of the clamping plate 200 through the rotating shaft 620, the rotating shaft 620 passes through the positioning end 230 and the connecting rod 500 in sequence, and the two ends are in contact with the two side plates 120, and the plate body 210 is connected to the upper surface of the side plate 120 through the connecting shaft 610. The positioning hole 122 is rotatably connected. When the driving rod 300 moves toward the elastic member 400, the end of the connecting rod 500 connected to the driving rod 300 moves with the driving rod 300, and then the positioning ends 230 of the two clamping plates 200 are driven to move inward through the connecting rod 500. Under the rotation of the plate body 210, the clamping ends 220 are driven to move outward to realize the opening of the clamping plates 200, so as to put down the workpiece 700, or wait for the workpiece 700 to be clamped. Figure 4Accordingly, the elastic member 400 rebounds, and the drive rod 300 moves in a direction away from the elastic member 400, and on the contrary, the state is as follows Figure 3 shown.

[0055] Specifically, the plate body 210 is provided with a protrusion facing inward, and the side panels 120 on both sides of the plate body 210 are provided with positioning holes 122 at positions corresponding to the protrusions. The connecting shaft 610 passes through the positioning hole 122 and the protrusion, so that the clamping plate 200 is rotatably connected to the side panel 120, and the rotating connection position serves as a fulcrum, which is moved inward or outward through the positioning end 230 to achieve corresponding opening and clamping.

[0056] In an embodiment of the utility model, the clamping mechanism also includes a pin shaft 600, which is used to connect the connecting rod 500 and the driving rod 300. The side plate 120 is provided with a slide groove 121, and the slide groove 121 extends along the axial direction of the driving rod 300. The end of the pin shaft 600 is located in the slide groove 121 and is slidably connected to the slide groove 121.

[0057] Please refer to Figure 1 and Figure 2 The pin 600 passes through the connecting rod 500 and the driving rod 300, so that one end of the connecting rod 500 rotates with the linear movement of the driving rod 300, and the end of the pin 600 is limited in the slide groove 121. The driving rod 300 moves toward the elastic member 400, driving the pin 600 to move in the slide groove 121. The two ends of the slide groove 121 in the length direction limit the pin 600 to prevent the driving rod 300 from moving too much relative to the support part 100, resulting in excessive clamping of the workpiece 700, causing damage to the workpiece 700, or the driving rod 300 from separating from the support part 100.

[0058] In the embodiment of the present invention, the outer periphery of the pin shaft 600 is in contact with the inner wall of the sliding groove 121 .

[0059] Please refer to Figure 1 The distance between the width directions of the slide groove 121 is greater than the outer diameter of the pin 600, so that the pin 600 can be inserted into the slide groove 121, and the pin 600 is in the slide groove 121, and the outer periphery of the pin 600 is tightly fitted with the inner wall of the slide groove 121, so that the pin 600 can only move along the extension direction of the slide groove 121, which can prevent the pin 600 from moving laterally and avoid unstable clamping.

[0060] In an embodiment of the utility model, the clamping mechanism also includes a connecting seat 140, a positioning groove 112 is provided on the top plate 110, the connecting seat 140 is arranged in the positioning groove 112 and is fixedly connected to the top plate 110, and a through hole connected to the through hole 111 is provided on the connecting seat 140, and one end of the driving rod 300 passes through the through hole in turn and connects the connecting rod 500 and the elastic member 400 with the through hole 111.

[0061] Please refer to Figure 1 and Figure 2 A positioning groove 112 is provided on the top plate 110, a through hole 111 is provided in the positioning groove 112, a connecting seat 140 is provided in the positioning groove 112, the connecting seat 140 is connected to the top plate 110 by bolts, a through hole is provided in the center of the connecting seat 140, the through hole is communicated with the through hole 111, and they are coaxially arranged, the driving rod 300 is on the side of the connecting seat 140 away from the top plate 110, passes through the through hole and the through hole 111 in sequence along the axial direction, and is rotatably connected with the connecting rod 500 in the accommodating space.

[0062] In the embodiment of the present invention, the clamping end 220 is inclined inwardly toward a side of the elastic member 400 .

[0063] Please refer to Figure 3 and Figure 4 By setting the clamping end 220 to be inclined inward, when the elastic member 400 rebounds and the clamping plate 200 is in a tightened state, the workpiece 700 can be better clamped to prevent the workpiece 700 from falling.

[0064] Please refer to Figure 3 and Figure 4 In the embodiment of the utility model, the elastic member 400 is a spring. The spring provides a rebound force for the driving rod 300. The driving rod 300 moves in a direction away from the spring, driving the clamping plate 200 to clamp the workpiece 700. The spring has good elasticity. When the external force on the driving rod 300 is removed, it is easy to rebound quickly after compression and return to the undeformed state.

[0065] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A clamping mechanism, characterized in that: include: Supporting part; Two clamping plates are provided, and the two clamping plates are arranged on both sides of the supporting part; A driving rod, disposed on the supporting portion and drivingly connected to one end of the two clamping plates; as well as An elastic member is arranged in the supporting portion, and two ends of the elastic member are respectively connected to the supporting portion and the output end of the driving rod. The driving rod moves along its axial direction so that the elastic member is compressed and drives the other ends of the two clamps to move away from each other to loosen the workpiece. The elastic member rebounds so that the two clamps move closer to each other at one end away from the driving rod to grip the workpiece.

2. The clamping mechanism according to claim 1, characterized in that: The support portion comprises: A top plate, provided with a through hole, through which the driving rod passes axially; A side plate, arranged on one side of the top plate, two side plates are provided, and the two side plates are arranged oppositely at two ends of the top plate; A bottom plate is arranged opposite to the top plate, and two ends of the bottom plate are connected to an end of the side plate away from the top plate; The two clamping plates are arranged on the side of the top plate where the side plate is arranged, and the two clamping plates are arranged opposite to each other and adjacent to the side plate, and one end of the elastic member away from the driving rod is connected to the bottom plate.

3. The clamping mechanism according to claim 2, characterized in that: The clamping plate includes a plate body and a clamping end and a positioning end at both ends of the plate body. The clamping mechanism also includes a connecting rod, one end of which is rotatably connected to the output end of the driving rod, and the other end is rotatably connected to the positioning end. The clamping end protrudes from the bottom plate, and the two sides of the plate body are rotatably connected to the side plates.

4. The clamping mechanism according to claim 3, characterized in that: The clamping mechanism also includes a pin shaft, which is used to connect the connecting rod and the driving rod. The side plate is provided with a slide groove, which extends along the axial direction of the driving rod. The end of the pin shaft is located in the slide groove and is slidably connected to the slide groove.

5. The clamping mechanism according to claim 4, characterized in that: The outer periphery of the pin shaft is in contact with the inner wall of the slide groove.

6. The clamping mechanism according to claim 4, characterized in that: The clamping mechanism also includes a connecting seat, a positioning groove is provided on the top plate, the connecting seat is arranged in the positioning groove and is fixedly connected to the top plate, a through hole is provided on the connecting seat and is connected to the through hole, and one end of the driving rod passes through the through hole in turn and connects the connecting rod and the elastic member with the through hole.

7. The clamping mechanism according to claim 3, characterized in that: The clamping end is inclined inwardly toward one side of the elastic member.

8. The clamping mechanism according to claim 1, characterized in that: The elastic member is a spring.

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