A screwless fastening clamp mechanism

Abstract

The utility model provides a kind of screwless fastening fixture mechanism, including fixture unit and fixture base plate, fixture unit includes fixed clamp, moving clamp, limit block, oil cylinder connecting plate, fixture vertical plate and oil cylinder, trapezoidal slot is set up on one end of fixture base plate, fixed clamp and trapezoidal slot sliding fit, the other end of fixture base plate is provided with fixture vertical plate, oil cylinder is provided on the side of fixture vertical plate away from fixed clamp, the output end of oil cylinder is connected with oil cylinder connecting plate, oil cylinder connecting plate is provided with oil cylinder connecting plate on the side of fixture vertical plate close to fixed clamp, one end of oil cylinder connecting plate is provided with rectangular slot, first sliding slot is set up in the two sides of oil cylinder connecting plate, moving clamp and first sliding slot sliding fit, one end of moving clamp is provided with square slot, limit block is respectively matched with rectangular slot slot and square slot.This fixture mechanism is matched by moving clamp and first sliding slot, the quick sliding adjustment and locking of clamp are realized, the time of traditional screwing bolt operation is shortened, so that equipment can realize quick production change when switching different products.

Description

Technical Field

[0001] This utility model relates to the field of fastening clamp technology, and in particular to a screwless fastening clamp mechanism. Background Technology

[0002] In traditional machining, fixtures are usually fixed to cylinders using bolt connections, which presents the following problems:

[0003] Limited effective clamping space: Bolts occupy the effective space of the fixture and the workpiece, reducing the flexibility and applicability of the fixture.

[0004] Low clamping efficiency and inconvenient adjustment: When changing clamps, the bolts on the clamps need to be tightened or loosened one by one, which affects production efficiency and makes it difficult to meet the needs of modern flexible and rapid production changeover.

[0005] Currently, there is an urgent need for a fast positioning fixture solution to meet the demands of modern machining for high precision and high efficiency. Utility Model Content

[0006] Therefore, one objective of this utility model is to propose a screwless fastening clamp mechanism to solve the problems mentioned in the background art and overcome the shortcomings of the prior art.

[0007] To achieve the above objectives, this utility model provides a screwless fastening clamp mechanism, including a clamp unit and a clamp base plate. The clamp unit includes a fixed clamp, a movable clamp, a limiting block, a hydraulic cylinder connecting plate, a clamp upright plate, and a hydraulic cylinder. A trapezoidal groove is formed on one end of the clamp base plate, and the fixed clamp slides in cooperation with the trapezoidal groove. A clamp upright plate is provided at the other end of the clamp base plate. A hydraulic cylinder is provided on the side of the clamp upright plate away from the fixed clamp, and the output end of the hydraulic cylinder is connected to the hydraulic cylinder connecting plate. A hydraulic cylinder connecting plate is provided on the side of the clamp upright plate close to the fixed clamp. A rectangular groove is formed on one end of the hydraulic cylinder connecting plate, and first sliding grooves are formed on both sides of the hydraulic cylinder connecting plate. The movable clamp slides in cooperation with the first sliding grooves. A square groove is provided on one end of the movable clamp, and the limiting block cooperates with the rectangular groove and the square groove respectively.

[0008] In any of the above solutions, it is preferred to include a clamping strip, which is disposed between the fixed clamp and the trapezoidal groove.

[0009] In any of the above solutions, it is preferred to include a fixing block, a fixing groove on the base plate of the fixture, a second sliding groove on the bottom of the fixing fixture, the fixing block being embedded in the fixing groove, and the fixing block slidingly engaging with the second sliding groove.

[0010] In any of the above embodiments, it is preferred to include an upper pull plate, a first inclined groove on the top of the fixing clamp, one end of the upper pull plate slidingly engaging with the first inclined groove, a second inclined groove on the top of the clamp upright plate, and the other end of the upper pull plate slidingly engaging with the second inclined groove.

[0011] In any of the above embodiments, it is preferred to include a cylinder gasket, which is disposed between the cylinder and the fixture upright plate, and is fixedly connected to the cylinder housing.

[0012] In any of the above solutions, it is preferred to include a screw, and the limiting block is provided with a screw hole, the screw passing through the cylinder connecting plate and engaging with the screw hole.

[0013] In any of the above solutions, it is preferred that two clamping units are arranged side by side on the clamping base plate.

[0014] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:

[0015] 1. This clamping mechanism achieves rapid sliding adjustment and locking of the clamp by cooperating with the first slide groove, which shortens the bolt tightening operation time that traditionally takes several minutes, and enables the equipment to quickly change production when switching between different products.

[0016] 2. This clamping mechanism eliminates external fasteners such as bolts and pressure plates, freeing up physical space on and around the clamping surface, allowing the clamps to be arranged more compactly and enabling the clamping of workpieces with more complex shapes or smaller sizes.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a general assembly drawing of a screwless fastening clamp mechanism according to an embodiment of the present utility model.

[0020] Figure 2 This is a schematic diagram of a screwless fastening clamp mechanism according to an embodiment of the present utility model.

[0021] Figure 3 This is a front view of a screwless fastening clamp mechanism according to an embodiment of the present utility model.

[0022] Figure 4 This is a drawing of a fixing fixture for a screwless fastening clamping mechanism according to an embodiment of the present utility model.

[0023] Wherein: 1-Clamp base plate; 2-Fixed clamp; 3-Moving clamp; 4-Limit block; 5-Hydraulic cylinder connecting plate; 6-Clamp upright plate; 7-Hydraulic cylinder; 8-Trapezoidal groove; 9-Rectangular groove; 10-First sliding groove; 11-Square groove; 12-Clamp pressure strip; 13-Fixed block; 14-Second sliding groove; 15-Upper pull plate; 16-First inclined groove; 17-Second inclined groove; 18-Hydraulic cylinder pad plate; 19-Screw. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] like Figures 1 to 3 As shown, a screwless fastening clamp mechanism according to an embodiment of the present invention includes a clamp unit and a clamp base plate 1. The clamp unit includes a fixed clamp 2, a movable clamp 3, a limiting block 4, a hydraulic cylinder connecting plate 5, a clamp upright plate 6, and a hydraulic cylinder 7. A trapezoidal groove 8 is provided on one end of the clamp base plate 1, and the fixed clamp 2 is slidably engaged with the trapezoidal groove 8. The clamp upright plate 6 is provided on the other end of the clamp base plate 1. The hydraulic cylinder 7 is provided on the side of the clamp upright plate 6 away from the fixed clamp 2, and the output end of the hydraulic cylinder 7 is connected to the hydraulic cylinder connecting plate 5. The hydraulic cylinder connecting plate 5 is provided on the side of the clamp upright plate 6 close to the fixed clamp 2. A rectangular groove 9 is provided on one end of the hydraulic cylinder connecting plate 5, and first sliding grooves 10 are provided on both sides of the hydraulic cylinder connecting plate 5. The movable clamp 3 is slidably engaged with the first sliding grooves 10, and a square groove 11 is provided on one end of the movable clamp 3. The limiting block 4 is engaged with the rectangular groove 9 and the square groove 11 respectively.

[0027] The limiting block 4 cooperates with the movable clamp 3 and the hydraulic cylinder connecting plate 5 to limit the longitudinal displacement of the movable clamp 3. The first slide groove 10 cooperates with the movable clamp 3 to limit the lateral displacement of the movable clamp 3.

[0028] As a preferred embodiment, it includes a clamping strip 12, which is disposed between the fixed clamp 2 and the trapezoidal groove 8.

[0029] The clamping strip 12 is used to restrict the movement of the fixing clamp 2 within the trapezoidal groove 8. The fixing clamp 2 slides into the trapezoidal groove 8, and then the clamping strip 12 slides into the trapezoidal groove 8 to fix the fixing clamp 2 within the trapezoidal groove 8. The clamping strip 12 and the trapezoidal groove 8 restrict the longitudinal movement of the fixing clamp 2.

[0030] As a preferred embodiment, it includes a fixing block 13, a fixing groove is provided on the base plate 1 of the clamp, a second sliding groove 14 is provided at the bottom of the fixing clamp 2, the fixing block 13 is embedded in the fixing groove, and the fixing block 13 and the second sliding groove 14 are slidably engaged.

[0031] The fixing block 13 fixes the fixing clamp 2 to the clamp base plate 1. A part of the fixing block 13 is embedded in the clamp base plate 1, and the other part of the fixing block 13 is embedded in the fixing clamp 2 for fixing the fixing clamp 2. The fixing block 13 restricts the horizontal movement of the fixing clamp 2.

[0032] As a preferred embodiment, the fixture includes an upper pull plate 15, a first inclined groove 16 is formed on the top of the fixing clamp 2, one end of the upper pull plate 15 is slidably engaged with the first inclined groove 16, and a second inclined groove 17 is formed on the top of the clamp upright plate 6, the other end of the upper pull plate 15 is slidably engaged with the second inclined groove 17.

[0033] The two ends of the upper pull plate 15 are respectively connected to the fixed clamp 2 and the clamp upright plate 6.

[0034] As a preferred embodiment, it includes a cylinder gasket 18, which is disposed between the cylinder 7 and the clamping plate 6, and is fixedly connected to the housing of the cylinder 7.

[0035] In a preferred embodiment, the device further includes a screw 19. The limiting block 4 has a screw hole, and the screw 19 passes through the cylinder connecting plate 5 and engages with the screw hole. The screw 19 fixes the limiting block 4 within the rectangular groove 9 and the square groove 11.

[0036] In a preferred embodiment, two clamping units are arranged side by side on the clamping base plate 1.

[0037] In a preferred embodiment, the number of screws 19 is two.

[0038] The working principle of this screwless fastening clamp mechanism is as follows:

[0039] 1. The movable clamp is slidably connected to the hydraulic cylinder connecting plate via the first sliding groove. The limiting block is inserted into the rectangular and square grooves. The fixed clamp slides into the trapezoidal groove. First, the fixed clamp is slid above the fixed block, and at the same time, one end of the fixed clamp mates with the trapezoidal groove. The clamp pressure strip slides into the trapezoidal groove, and the fixed clamp is in the trapezoidal groove. The fixed clamp is then fixed to the clamp base plate.

[0040] 2. Place the workpiece to be processed between the fixed fixture and the movable fixture. Based on the workpiece size, use the contact between the fixed fixture and the workpiece as a reference. Start the hydraulic cylinder. The piston rod pushes the hydraulic cylinder connecting plate to drive the movable fixture to move and press against the workpiece from the other side, completing the initial horizontal clamping of the workpiece.

[0041] 3. After processing, the piston rod of the hydraulic cylinder retracts, pushing the hydraulic cylinder connecting plate to move away from the fixed fixture, thereby causing the moving fixture to release the workpiece.

[0042] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A screwless fastening clamp mechanism, characterized in that, The device includes a clamping unit and a clamping base plate. The clamping unit includes a fixed clamp, a movable clamp, a limiting block, a hydraulic cylinder connecting plate, a clamping upright plate, and a hydraulic cylinder. A trapezoidal groove is formed on one end of the clamping base plate, and the fixed clamp slides into the trapezoidal groove. The clamping upright plate is provided at the other end of the clamping base plate. The hydraulic cylinder is provided on the side of the clamping upright plate away from the fixed clamp, and the output end of the hydraulic cylinder is connected to the hydraulic cylinder connecting plate. The hydraulic cylinder connecting plate is provided on the side of the clamping upright plate close to the fixed clamp. A rectangular groove is formed at one end of the hydraulic cylinder connecting plate, and first sliding grooves are formed on both sides of the hydraulic cylinder connecting plate. The movable clamp slides into the first sliding grooves, and a square groove is provided at one end of the movable clamp. The limiting block engages with the rectangular groove and the square groove respectively.

2. The screwless fastening clamp mechanism as described in claim 1, characterized in that, It includes a clamping strip, which is disposed between the fixed clamp and the trapezoidal groove.

3. The screwless fastening clamp mechanism as described in claim 1, characterized in that, The fixture includes a fixing block, a fixing groove is formed on the base plate of the fixture, a second sliding groove is formed on the bottom of the fixing fixture, the fixing block is embedded in the fixing groove, and the fixing block slides in cooperation with the second sliding groove.

4. The screwless fastening clamp mechanism as described in claim 1, characterized in that, The fixture includes an upper pull plate, a first inclined groove is formed on the top of the fixing clamp, one end of the upper pull plate is slidably engaged with the first inclined groove, and a second inclined groove is formed on the top of the clamp upright plate, the other end of the upper pull plate is slidably engaged with the second inclined groove.

5. The screwless fastening clamp mechanism as described in claim 1, characterized in that, It includes a cylinder gasket, which is disposed between the cylinder and the clamping plate, and is fixedly connected to the cylinder housing.

6. The screwless fastening clamp mechanism as described in claim 1, characterized in that, It also includes screws, and the limiting block is provided with screw holes, and the screws pass through the cylinder connecting plate and engage with the screw holes.

7. The screwless fastening clamp mechanism as described in claim 1, characterized in that, Two clamping units are arranged side by side on the clamping base plate.

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