Telescopic clamping mechanism

Abstract

The utility model relates to a telescopic clamping mechanism. The telescopic clamping mechanism comprises a base, a support, an air cylinder, a clamping block, a square pin, a spring plunger, a supporting block and a check block. The support is installed on the base, the air cylinder is fixed to the top of the support, the telescopic end of the air cylinder is fixedly connected with the clamping block so that the air cylinder can drive the clamping block to move front and back, a square pin is arranged at the bottom of the clamping block, the bottom of the square pin is inserted into a sliding groove formed in the supporting block and abuts against the spring plunger, and the spring plunger can be pushed forwards; when the contraction elastic force of the spring plunger is larger than the friction force between the supporting block and the base, the supporting block can be driven to slide forwards on the base until the supporting block is blocked by the check block on the front side, at the moment, the air cylinder drives the clamping block, and the clamping block drives the square pin; and under the action that the square pin pushes the spring plunger, the spring plunger can still contract for a certain distance, so that the common movement of the clamping block and the supporting block is realized.

Description

Technical Field

[0001] This application relates to the technical field of mechanical equipment, and particularly relates to a telescopic clamping mechanism. Background Art

[0002] In many engineering design and manufacturing fields, in order to ensure the efficient operation and precise control of mechanical equipment, two independent transmission mechanisms are required to control the support member and the clamping member. However, adopting this design method of double transmission mechanisms, the control method of multiple transmission mechanisms requires independent design, processing, installation and commissioning for each transmission mechanism. These links will increase the operation and maintenance costs of the device, and the two transmission mechanisms will occupy a large space, resulting in a decrease in space utilization rate, and further restricting the further reduction of the overall size of the equipment. Summary of the Utility Model

[0003] In view of this, this application proposes a telescopic clamping mechanism that can use one transmission mechanism to drive the movement of the support member and the clamping member simultaneously.

[0004] According to one aspect of this application, a telescopic clamping mechanism is provided, including: a base, a support, a cylinder, a clamping block, a square pin, a spring plunger, a support block and a stop block; the support is fixedly arranged on the base, the fixed end of the cylinder is fixedly connected to the base, the telescopic end of the cylinder is fixedly connected to the clamping block, the telescopic direction of the cylinder is forward, and a square pin is arranged at the bottom of the clamping block; the support block is arranged on the base and is slidably connected to the base, a sliding groove is opened at the top of the support block, and the front side of the support block is sealed, the spring plunger is arranged in the sliding groove, and the bottom of the square pin is fixedly connected to the rear side of the spring plunger; the stop block is arranged on the base and is arranged on the front side of the support block.

[0005] In a possible implementation manner, the bottom of the clamping block is slidably connected to the bottom of the sliding groove, and a guide rail is arranged at the sliding position of the sliding groove and the clamping block, and the guide rail is arranged in the front-rear direction.

[0006] In a possible implementation manner, the clamping block includes a connecting block and a pushing block, the connecting block is arranged on the top of the pushing block, and the connecting block is flush with the front side of the pushing block; the telescopic end of the cylinder is connected to the rear end of the connecting block, and the square pin is arranged at a position close to the rear side of the pushing block.

[0007] In a possible implementation manner, the top of the square pin is inserted into the pushing block and extends downward into the sliding groove, and the front side of the square pin near the bottom is abutted against the rear side of the spring plunger.

[0008] In a possible implementation manner, a sealing block is arranged on the front side of the support block. The sealing block is arranged on the front side of the sliding groove and can be in abutting contact with the spring plunger.

[0009] In a possible implementation manner, the bottom of the sliding groove is arranged in a two-stage stepped shape. The depth of the front side of the sliding groove is greater than the depth of the rear side of the sliding groove. The spring plunger is arranged at a position close to the front side of the sliding groove.

[0010] In a possible implementation manner, a relief notch is arranged on the front side of the support block. The relief notch is arranged at the bottom of the support block and corresponds to the stop block.

[0011] In a possible implementation manner, the support is vertically arranged with respect to the base. The cylinder is arranged on the top of the support, and its arrangement direction is perpendicular to the support.

[0012] In a possible implementation manner, the support is of an "L" - shaped structure; the horizontal side of the support extends backward. The horizontal side is in contact with the support block and is bolt - connected to the support block; the cylinder is arranged at a position close to the top of the vertical side of the support, and the cylinder is arranged on the front side of the vertical side of the support.

[0013] In a possible implementation manner, the base is inclined. The included angle between the top surface of the base and the horizontal plane is a first preset angle α, and the value range of the first preset angle α is: 10° ≤ α ≤ 30°.

[0014] The beneficial effects of the present application: The support is installed on the base, and the fixed end of the cylinder is fixedly connected to the top of the support. The other end of the cylinder is fixedly connected to the clamping block, so that the cylinder can drive the clamping block to move back and forth. A square pin is arranged at the bottom of the clamping block, and the bottom of the square pin is inserted into the sliding groove formed on the support block. The square pin is in abutting contact with the spring plunger and can push the spring plunger forward until the front side of the spring plunger abuts against the sealing block on the front side of the support block. The spring plunger contracts. When the elastic force of the spring plunger is greater than the frictional force between the support block and the base, it can drive the support block to slide forward on the base until the support block is blocked by the front stop block. At this time, under the action of the cylinder driving the clamping block, the clamping block driving the square pin, and the square pin pushing the spring plunger, the spring plunger can still contract a certain distance, thus realizing the common movement of the clamping block and the support block. According to the telescopic clamping mechanism of the present application, a single power cylinder can be used to drive the movement of both the support member and the clamping member.

[0015] According to the following detailed description of the exemplary embodiments with reference to the accompanying drawings, other features and aspects of the present application will become clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings included in and forming a part of the specification illustrate exemplary embodiments, features, and aspects of the present application together with the specification, and are used to explain the principles of the present application.

[0017] Figure 1 The sectional structure diagram of the telescopic clamping mechanism showing an embodiment of the present application. Detailed Description of Specific Embodiments

[0018] Various exemplary embodiments, features, and aspects of the present application will be described in detail below with reference to the drawings. The same reference numerals in the drawings denote elements having the same or similar functions. Although various aspects of the embodiments are shown in the drawings, the drawings do not have to be drawn to scale unless otherwise specified.

[0019] It should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application or simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present application.

[0020] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0021] The special term "exemplary" here means "serving as an example, embodiment, or illustration". Any embodiment described as "exemplary" here does not have to be construed as superior to or better than other embodiments.

[0022] In addition, for a better description of the present application, numerous specific details are given in the following detailed description of specific embodiments. Those skilled in the art should understand that the present application can also be implemented without some specific details. In some instances, methods, means, elements, and circuits well known to those skilled in the art are not described in detail so as to highlight the gist of the present application.

[0023] As shown in the figure, the telescopic clamping mechanism includes: a base 100, a support 200, a cylinder 300, a clamping block 400, a square pin 500, a spring plunger 600, a support block 700, and a stop block 800; the support 200 is fixedly arranged on the base 100, the fixed end of the cylinder 300 is fixedly connected to the base 100, the telescopic end of the cylinder 300 is fixedly connected to the clamping block 400, the telescopic direction of the cylinder 300 is forward, and a square pin 500 is arranged at the bottom of the clamping block 400; the support block 700 is arranged on the base 100 and is slidably connected to the base 100. A sliding groove 710 is formed at the top of the support block 700, and the front side of the support block 700 is hermetically arranged. The spring plunger 600 is arranged in the sliding groove 710, and the bottom of the square pin 500 is fixedly connected to the rear side of the spring plunger 600; the stop block 800 is arranged on the base 100 and is arranged on the front side of the support block 700.

[0024] As Figure 1 shown, the right side herein is the front side of the present application, and the left side is the rear side of the present application.

[0025] The support 200 is fixed to the base 100 with screws. One end of the cylinder 300 is fixed to the support 200 of the cylinder 300, and the rod end of the cylinder 300 is connected to the clamping block 400. The clamping block 400 applies pressure to the spring plunger 600 through the square pin 500, and the spring plunger 600 is threadedly connected to the workpiece support block 700. The workpiece support block 700 can slide forward along the guide rail 720. Therefore, when the cylinder 300 pushes the clamping block 400 forward to clamp, it also transmits the pressure to the support block 700 through the clamping block 400, the square pin 500, and the spring plunger 600, causing the support block 700 to extend forward along the guide rail 720. When the support block 700 extends to contact the stop block 800, it stops moving. Since there is still compression space for the spring plunger 600, the clamping block 400 continues to move forward under the action of the rod of the cylinder 300 until it stops against the inner wall of the circular workpiece clamping surface. In this set of mechanisms, only one forward extension process of one cylinder 300 is used, which not only realizes the movement of the workpiece support block 700 to the working position but also realizes the clamping action of the clamping block 400 on the inner wall of the circular workpiece.

[0026] In a possible implementation manner, the bottom of the clamping block 400 is slidably connected to the bottom of the sliding groove 710. A guide rail 720 is arranged at the sliding position of the sliding groove 710 and the clamping block 400. The guide rail 720 is arranged in the front-rear direction. The guide rail 720 can reduce the friction between the clamping block 400 and the support block 700 and at the same time enable the clamping block 400 to slide forward along a preset direction.

[0027] In a possible implementation, the clamping block 400 includes a connecting block 410 and a pushing block 420. The connecting block 410 is arranged on the top of the pushing block 420, and the front side of the connecting block 410 is flush with the front side of the pushing block 420. The telescopic end of the cylinder 300 is connected to the rear end of the connecting block 410. The square pin 500 is arranged at a position close to the rear side of the pushing block 420. The connecting block 410 and the pushing block 420 are fixedly connected by bolts.

[0028] The length of the connecting block 410 in the front-rear direction is less than that of the pushing block 420. The front side of the connecting block 410 is inclined forward from top to bottom. The bottom of the pushing block 420 matches the sliding groove 710, and the setting direction of its top is the same as its sliding direction. The front side of the connecting block 410 is flush with the front side of the pushing block 420.

[0029] The length of the clamping block 400 is less than the length of the support block 700. The opening length of the sliding groove 710 is the same as the length of the support block 700, where the length is the length of the present application in the front-rear direction.

[0030] In a possible implementation, the top of the square pin 500 is inserted into the pushing block 420 and extends downward into the sliding groove 710. The front side of the square pin 500 near the bottom is in abutting contact with the rear side of the spring plunger 600.

[0031] In a possible implementation, a sealing block 900 is arranged on the front side of the support block 700. The sealing block 900 is arranged on the front side of the sliding groove 710 and can be in abutting contact with the spring plunger 600.

[0032] In a possible implementation, the bottom of the sliding groove 710 is arranged in a two-stage stepped shape. The depth of the front side of the sliding groove 710 is greater than the depth of the rear side of the sliding groove 710. The spring plunger 600 is arranged at a position close to the front side of the sliding groove 710. The stepped structure can limit the movement range of the spring plunger 600 in the front-rear direction.

[0033] In a possible implementation, a relief notch is arranged on the front side of the support block 700. The relief notch is arranged at the bottom of the support block 700 and corresponds to the stop block 800. The stop block 800 is a bolt structure, and its bottom is embedded in the base 100.

[0034] In a possible implementation, the support 200 is arranged perpendicular to the base 100. The cylinder 300 is arranged on the top of the support 200, and its setting direction is perpendicular to the support 200.

[0035] In a possible implementation manner, the support 200 is an "L"-shaped structure; the horizontal side of the support 200 extends backward, the horizontal side is attached to the support block 700, and is bolted to the support block 700; the cylinder 300 is arranged at a position close to the top of the vertical side of the support 200, and the cylinder 300 is arranged on the front side of the vertical side of the support 200.

[0036] In a possible implementation manner, the base 100 is inclined, and the included angle between the top surface of the base 100 and the horizontal plane is a first preset angle α, and the value range of the first preset angle α is: 10° ≤ α ≤ 30°. Setting a certain preset angle can make the clamping effect of the clamping block 400 better.

[0037] It should be noted that although a telescopic clamping mechanism is introduced by taking this application as an example as above, those skilled in the art can understand that this application should not be limited thereto. In fact, users can flexibly set each parameter according to personal preferences and / or actual application scenarios as long as the design is reasonable.

[0038] In this way, the support is installed on the base, the fixed end of the cylinder is fixedly connected to the top of the support, and the other end of the cylinder is fixedly connected to the clamping block, so that the cylinder can drive the clamping block to move back and forth. A square pin is arranged at the bottom of the clamping block, and the bottom of the square pin is inserted into the sliding groove opened on the support block. The square pin is in contact with the spring plunger and can push the spring plunger forward until the front side of the spring plunger abuts against the sealing block on the front side of the support block. The spring plunger contracts. When the elastic force of the spring plunger is greater than the frictional force between the support block and the base, it can drive the support block to slide forward on the base until the support block is blocked by the front stop block. At this time, under the action of the cylinder driving the clamping block, the clamping block driving the square pin, and the square pin pushing the spring plunger, the spring plunger can still contract a certain distance, thereby realizing the common movement of the clamping block and the support block. According to the telescopic clamping mechanism of this application, a power cylinder can be used to drive the movement of the support member and the clamping member at the same time.

[0039] The above has described the embodiments of this application. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other ordinary skill in the art in the technical field to understand the embodiments disclosed herein.

Claims

1. A telescopic clamping mechanism, characterized in that, Including: A base, a support, a cylinder, a clamping block, a square pin, a spring plunger, a support block and a stop block; The support is fixedly arranged on the base, the fixed end of the cylinder is fixedly connected to the base, the telescopic end of the cylinder is fixedly connected to the clamping block, the telescopic direction of the cylinder is forward, and a square pin is arranged at the bottom of the clamping block; The support block is arranged on the base and is slidably connected to the base. A sliding groove is formed at the top of the support block, and the front side of the support block is hermetically arranged. The spring plunger is arranged in the sliding groove, and the bottom of the square pin is fixedly connected to the rear side of the spring plunger; The stop block is arranged on the base and is arranged on the front side of the support block.

2. The telescopic clamping mechanism according to claim 1, wherein The bottom of the clamping block is slidably connected to the bottom of the sliding groove. A guide rail is arranged at the sliding position of the sliding groove and the clamping block, and the guide rail is arranged in the front-rear direction.

3. The telescopic clamping mechanism according to claim 1 or 2, characterized in that, The clamping block includes a connecting block and a pushing block. The connecting block is arranged on the top of the pushing block, and the front sides of the connecting block and the pushing block are flush; The telescopic end of the cylinder is connected to the rear end of the connecting block, and the square pin is arranged at a position close to the rear side of the pushing block.

4. The telescopic clamping mechanism according to claim 3, wherein The top of the square pin is inserted into the pushing block and extends downward into the sliding groove. The front side of the square pin at a position close to the bottom abuts against the rear side of the spring plunger.

5. The telescopic clamping mechanism according to claim 1 or 2, characterized in that, A sealing block is arranged on the front side of the support block. The sealing block is arranged on the front side of the sliding groove and can abut against the spring plunger.

6. The telescopic clamping mechanism according to claim 5, wherein, The bottom of the sliding groove is arranged in a two-stage stepped shape. The depth of the front side of the sliding groove is higher than the depth of the rear side of the sliding groove, and the spring plunger is arranged at a position close to the front side of the sliding groove.

7. The telescopic clamping mechanism according to claim 1 or 2, characterized in that A relief notch is arranged on the front side of the support block. The relief notch is arranged at the bottom of the support block and corresponds to the stop block.

8. The telescopic clamping mechanism according to claim 1 or 2, characterized in that, The support is arranged perpendicular to the base. The cylinder is arranged on the top of the support and its arrangement direction is perpendicular to the support.

9. The telescopic clamping mechanism according to claim 8, wherein The support is of an "L" - shaped structure; The horizontal side of the support extends backward, and the horizontal side is attached to the support block and is bolt - connected to the support block; The cylinder is arranged at a position close to the top of the vertical side of the support, and the cylinder is arranged on the front side of the vertical side of the support.

10. The telescopic clamping mechanism according to claim 1 or 2, characterized in that, The base is inclined. The included angle between the top surface of the base and the horizontal plane is a first preset angle α, and the value range of the first preset angle α is: 10° ≤ α ≤ 30°.

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