Adjustable clamping and positioning device

Abstract

The utility model relates to the technical field of clamping and positioning, and particularly discloses an adjustable clamping and positioning device which comprises two oppositely-arranged clamping plates and a linear driving mechanism for driving the two clamping plates to be close to each other or away from each other. A plurality of elastic floating assemblies are slidably mounted on the surface, close to the other clamping plate, of at least one clamping plate. The adjustable clamping and positioning device can effectively solve the problem that an existing clamping and positioning mechanism cannot clamp and position workpieces of various specifications and is poor in universality.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping and positioning, in particular to an adjustable clamping and positioning device. Background Art

[0002] Before the robot grabs the workpiece, it needs to place the workpiece in the clamping and positioning mechanism, and let the clamping and positioning mechanism clamp and position the workpiece first.

[0003] The existing clamping and positioning mechanism includes a fixed clamping plate, a movable clamping plate and a linear drive mechanism that drives the movable clamping plate to approach or move away from the fixed clamping plate. The workpiece to be positioned is placed between the fixed clamping plate and the movable clamping plate, and the linear drive mechanism drives the movable clamping plate to cooperate with the fixed clamping plate to clamp the workpiece, thereby completing the clamping and positioning operation of the workpiece.

[0004] The stroke of the linear drive mechanism is generally fixed: if the size of the workpiece is too large, it is easy to damage the workpiece; if the size of the workpiece is small, it is difficult to clamp the workpiece. Therefore, the existing positioning mechanism is too targeted and cannot be applied to workpieces of different specifications, and has poor versatility.

[0005] Therefore, it is necessary to improve the existing clamping and positioning mechanism to solve the problem that it cannot clamp and position workpieces of various specifications, resulting in poor versatility.

[0006] The above information disclosed in this Background section is included only for enhancement of understanding of the background of the present disclosure and therefore it may contain information that does not form the prior art that is currently known to a person of ordinary skill in the art. Utility Model Content

[0007] One purpose of the utility model is to provide an adjustable clamping and positioning device, which can effectively solve the problem that the existing clamping and positioning mechanism cannot clamp and position workpieces of various specifications, resulting in poor versatility.

[0008] To achieve the above purpose, the utility model provides an adjustable clamping and positioning device, comprising two clamping plates arranged opposite to each other and a linear driving mechanism for driving the two clamping plates to move closer to or away from each other;

[0009] A plurality of elastic floating components are slidably mounted on a surface of at least one of the clamping plates close to another of the clamping plates.

[0010] Optionally, the clamping plate is provided with a plurality of first V-shaped notches.

[0011] Optionally, the elastic floating assembly is installed at the first V-shaped notch of the corresponding clamping plate.

[0012] Optionally, the elastic floating assembly includes a sliding clamp block slidably disposed in a corresponding clamp plate, and a spring driving the sliding clamp block to slide outward relative to the corresponding clamp plate.

[0013] Optionally, a receiving cavity is provided inside the clamping plate on which the elastic floating assembly is installed.

[0014] The small end opening of the accommodating cavity extends to the first V-shaped notch of the clamping plate, and the large end opening of the accommodating cavity extends to the surface of the clamping plate opposite to the first V-shaped notch.

[0015] Optionally, the sliding clamp includes a main body portion located in the accommodating cavity and a clamping portion extending to the outside of the accommodating cavity through the small end opening.

[0016] Optionally, a second V-shaped notch is provided on the end surface of the clamping portion close to the workpiece.

[0017] Optionally, the spring is located on a side of the main body away from the clamping portion.

[0018] Optionally, the clamping plate on which the elastic floating assembly is installed is provided with a cover plate for sealing the large end opening which is fastened to one side of the large end opening.

[0019] Optionally, one of the clamping plates is fixedly arranged relative to the linear drive mechanism, and the other clamping plate is installed on the driving end of the linear drive mechanism.

[0020] The beneficial effect of the utility model is that it provides an adjustable clamping and positioning device, by placing the workpiece to be positioned between two clamping plates, and the linear drive mechanism drives the two clamping plates to cooperate with each other to clamp the workpiece, so as to complete the clamping and positioning operation of the workpiece. In the process of clamping the workpiece, the elastic floating component can slide a certain range relative to the corresponding clamping plate to adapt to the size change of the workpiece.

[0021] Therefore, the adjustable clamping and positioning device provided by the utility model can effectively solve the problem that the existing clamping and positioning mechanism cannot clamp and position workpieces of various specifications, resulting in poor versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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 these drawings without paying creative labor.

[0023] Figure 1 A schematic diagram of the structure of an adjustable clamping and positioning device provided in an embodiment;

[0024] Figure 2 for Figure 1 A local enlarged schematic diagram of the middle A;

[0025] Figure 3 A schematic cross-sectional view of an active splint provided in an embodiment.

[0026] In the figure:

[0027] 1a, fixed splint; 1b, movable splint; 101, first V-shaped notch; 102, accommodating cavity; 103, small end opening; 104, large end opening;

[0028] 2. Linear drive mechanism;

[0029] 3. Elastic floating assembly; 301. Sliding clamp; 3011. Main body; 3012. Clamping part; 3013. Second V-shaped notch; 302. Spring;

[0030] 4. Cover plate. DETAILED DESCRIPTION

[0031] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the embodiment described below is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment 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.

[0032] In the description of the present utility model, it is to be understood that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centrally arranged component at the same time.

[0033] In addition, terms such as "long", "short", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention. They do not indicate or imply that the device or component referred to must have this specific direction or operate with a specific direction structure, and should not be understood as a limitation of the present invention.

[0034] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0035] The utility model provides an adjustable clamping and positioning device, which is suitable for application scenarios of clamping and positioning workpieces, and can effectively solve the problem that the existing clamping and positioning mechanism cannot clamp and position workpieces of various specifications, resulting in poor versatility.

[0036] The adjustable clamping and positioning device provided by the utility model comprises two clamping plates arranged opposite to each other and a linear driving mechanism for driving the two clamping plates to approach or move away from each other; a plurality of elastic floating components are slidably mounted on the surface of at least one clamping plate close to the other clamping plate.

[0037] The adjustable clamping and positioning device provided by the utility model places the workpiece to be positioned between two clamping plates, and the linear drive mechanism drives the two clamping plates to cooperate with each other to clamp the workpiece, thereby completing the clamping and positioning operation of the workpiece. During the process of clamping the workpiece, the elastic floating component can slide a certain range relative to the corresponding clamping plate to adapt to the size change of the workpiece.

[0038] Therefore, the adjustable clamping and positioning device provided by the utility model can effectively solve the problem that the existing clamping and positioning mechanism cannot clamp and position workpieces of various specifications, resulting in poor versatility.

[0039] See also Figure 1 and Figure 2 In this embodiment, the description is mainly based on the case where only one clamping plate is provided with the elastic floating component 3. Specifically, one clamping plate is fixedly provided relative to the linear drive mechanism 2 (hereinafter referred to as the "fixed clamping plate 1a"), and the other clamping plate is installed on the driving end of the linear drive mechanism 2 (hereinafter referred to as the "movable clamping plate 1b"), and the elastic floating component 3 is installed only on the movable clamping plate 1b.

[0040] Optionally, the surfaces of the fixed clamping plate 1a and the movable clamping plate 1b close to each other are both provided with a plurality of first V-shaped notches 101. The first V-shaped notches 101 on the fixed clamping plate 1a and the first V-shaped notches 101 on the movable clamping plate 1b cooperate with each other to clamp the workpiece.

[0041] In this embodiment, a receiving cavity 102 is provided inside the movable splint 1b, a small end opening 103 of the receiving cavity 102 extends to the first V-shaped notch 101 of the movable splint 1b, and a large end opening 104 of the receiving cavity 102 extends to the surface of the splint opposite to the first V-shaped notch 101.

[0042] The elastic floating assembly 3 is installed at the first V-shaped notch 101 of the movable clamping plate 1b. Specifically, the elastic floating assembly 3 includes a sliding clamping block 301 slidably disposed in the movable clamping plate 1b, and a spring 302 driving the sliding clamping block 301 to slide outward relative to the corresponding clamping plate.

[0043] See also Figure 3 The sliding clamp 301 includes a main body 3011 located in the accommodating cavity 102 and a clamping portion 3012 extending to the outside of the accommodating cavity 102 through the small end opening 103; the spring 302 is located on a side of the main body 3011 away from the clamping portion 3012 so as to push the sliding clamp 301 outward.

[0044] The cover plate 4 for covering the large end opening 104 is fastened and installed on one side of the movable clamping plate 1b provided with the large end opening 104, so as to restrict the sliding clamping block 301 and the spring 302 in the accommodating cavity 102. Specifically, during assembly, the movable clamping block can be first inserted into the accommodating cavity 102 through the large end opening 104, then the spring 302 is installed, and finally the cover plate 4 is fastened and installed on the movable clamping plate 1b.

[0045] Optionally, the clamping portion 3012 is provided with a second V-shaped notch 3013 on the end face close to the workpiece. When the linear drive mechanism 2 drives the movable clamp plate 1b to approach the fixed clamp plate 1a, the second V-shaped notch 3013 will cooperate with the first V-shaped notch 101 on the fixed clamp plate 1a to clamp the workpiece, and during the clamping process, when the size of the workpiece changes, the sliding clamp block 301 adapts to the size change of the workpiece by changing the degree of compression on the spring 302. Specifically, if the size of the workpiece is larger, the sliding clamp block 301 will retract more into the movable clamp plate 1b; conversely, if the size of the workpiece is smaller, the sliding clamp block 301 will extend more to the outside of the movable clamp plate 1b. Therefore, within the sliding stroke range of the sliding clamp block 301, the adjustable clamping and positioning device can cooperate with the fixed clamp plate 1a to clamp the workpiece so as to complete the clamping and positioning operation.

[0046] Optionally, the adjustable clamping and positioning device provided in this embodiment is provided with two linear drive mechanisms 2, and each of the linear drive mechanisms 2 is provided with a corresponding fixed clamping plate 1a and a movable clamping plate 1b, so as to realize double-station operation and improve production efficiency.

[0047] It should be noted that the linear drive mechanism 2 mentioned in the present invention can be a pneumatic cylinder, a hydraulic cylinder, an electric cylinder or a motor screw linear module, etc. The present invention does not limit the specific structural form of the linear drive mechanism 2.

[0048] In summary, the adjustable clamping and positioning device provided in this embodiment has the following advantages:

[0049] ① In the process of clamping the workpiece, the elastic floating component 3 can slide to a certain extent to adapt to the size change of the workpiece, thereby solving the problem that the existing clamping and positioning mechanism cannot clamp and position workpieces of various specifications, resulting in poor versatility;

[0050] ② First install the sliding clamp 301, then install the spring 302, and finally tighten and install the cover plate 4. The assembly process is simple and convenient.

[0051] ③Dual-station operation greatly improves production efficiency.

[0052] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0053] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the utility model. They are not intended to limit the protection scope of the utility model. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. An adjustable clamping and positioning device, characterized in that: It comprises two clamping plates arranged opposite to each other and a linear driving mechanism for driving the two clamping plates to move closer to or away from each other; A plurality of elastic floating components are slidably mounted on a surface of at least one of the clamping plates close to another of the clamping plates.

2. The adjustable clamping and positioning device according to claim 1, characterized in that: The clamping plate is provided with a plurality of first V-shaped notches.

3. The adjustable clamping and positioning device according to claim 2, characterized in that: The elastic floating assembly is installed at the first V-shaped notch of the corresponding clamping plate.

4. The adjustable clamping and positioning device according to claim 1, characterized in that: The elastic floating assembly includes a sliding clamp block slidably arranged in the corresponding clamp plate, and a spring driving the sliding clamp block to slide outward relative to the corresponding clamp plate.

5. The adjustable clamping and positioning device according to claim 4, characterized in that: The interior of the clamping plate on which the elastic floating assembly is installed is provided with a containing cavity. The small end opening of the accommodating cavity extends to the first V-shaped notch of the clamping plate, and the large end opening of the accommodating cavity extends to the surface of the clamping plate opposite to the first V-shaped notch.

6. The adjustable clamping and positioning device according to claim 5, characterized in that: The sliding clamp block comprises a main body portion located in the accommodating cavity and a clamping portion extending to the outside of the accommodating cavity through the small end opening.

7. The adjustable clamping and positioning device according to claim 6, characterized in that: The end surface of the clamping portion close to the workpiece is provided with a second V-shaped notch.

8. The adjustable clamping and positioning device according to claim 6, characterized in that: The spring is located at a side of the main body away from the clamping portion.

9. The adjustable clamping and positioning device according to claim 5, characterized in that: A cover plate for sealing the large end opening is fastened and installed on one side of the clamping plate on which the elastic floating assembly is installed.

10. The adjustable clamping and positioning device according to claim 1, characterized in that: One of the clamping plates is fixedly arranged relative to the linear drive mechanism, and the other clamping plate is installed on the driving end of the linear drive mechanism.

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