Mechanical quick-change clamp structure

Abstract

The utility model relates to the technical field of fixing supports, in particular to a mechanical quick-change clamp structure. The clamp comprises a bottom plate and a clamp body, fixing devices are arranged on the two sides of the bottom plate, each fixing device comprises two U-shaped outer plates, the sides, close to each other, of the two U-shaped outer plates are fixedly connected with the bottom plate, internal thread rings are fixedly connected to the inner sides of the U-shaped outer plates, threaded rods are connected to the interiors of the internal thread rings in a threaded mode, and the threaded rods are fixedly connected with the bottom plate. And one end of the screw rod is fixedly connected with an I-shaped rod, the arc surface of the I-shaped rod is slidably connected with a U-shaped inner plate, and the exterior of the U-shaped inner plate is slidably connected with a U-shaped outer plate. The problems that according to a traditional mechanical quick-change clamp structure, when a clamp is used for different workpieces, different clamps need to be arranged to achieve taking and placing, connection and fixation of the clamp are basically completed through bolts, a large number of auxiliary tools need to be used when the clamp is replaced, consequently, disassembly and assembly of the clamp are tedious, the operation time is long, and the work efficiency is high are solved. And the production efficiency is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of fixing brackets, in particular to a mechanical quick-change fixture structure. Background Art

[0002] During the machining of mechanical parts, a clamping device is usually required to clamp the parts.

[0003] In the prior art, when the fixture is for different workpieces, different fixtures need to be equipped to realize picking and placing. The fixing of the fixture is basically completed by bolts. A large number of auxiliary tools are needed when replacing the fixture, resulting in cumbersome disassembly and assembly of the fixture, long operation time, and affecting production efficiency. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the drawback that in the prior art, for the traditional mechanical quick-change fixture structure, the fixing of the fixture is basically completed by bolts, resulting in cumbersome disassembly and assembly of the fixture, and to propose a mechanical quick-change fixture structure.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A mechanical quick-change fixture structure includes a bottom plate and a fixture body. Fixed devices are provided on both sides of the bottom plate. The fixed device includes two U-shaped outer plates. The side of the two U-shaped outer plates close to each other is fixedly connected to the bottom plate. An internal thread ring is fixedly connected to the inner side of the U-shaped outer plate. A screw rod is threadedly connected to the inside of the internal thread ring. One end of the screw rod is fixedly connected to a T-shaped rod. The arc surface of the T-shaped rod is slidably connected to a U-shaped inner plate. The outside of the U-shaped inner plate is slidably connected to the U-shaped outer plate. One side of the U-shaped inner plate is fixedly connected to a fixing plate. One side of the fixing plate is slidably connected to the T-shaped rod. One side of the fixing plate is fixedly connected to an inclined surface pressing plate. One side of the two inclined surface pressing plates is slidably connected to a mounting plate. One side of the mounting plate is fixedly connected to the fixture body.

[0006] The effect achieved by the above components is that after the T-shaped rod rotates to drive the screw rod to completely disengage from the internal thread ring, the fixing plate drives the inclined surface pressing plate away from the mounting plate, eliminating the effect of limiting and fixing the mounting plate.

[0007] Preferably, four telescopic rods are fixedly connected to the inner side of the U-shaped outer plate. The output ends of the four telescopic rods are fixedly connected to the U-shaped inner plate.

[0008] The effect achieved by the above components is that the movement of the U-shaped inner plate drives the telescopic rods to expand and contract.

[0009] Preferably, springs are sleeved on the arc surfaces of the telescopic rods. The two ends of the four springs are respectively fixedly connected to the U-shaped outer plate and the U-shaped inner plate.

[0010] The effects achieved by the above components are as follows: The telescopic rod achieves the effect of preventing the spring from deforming during the stretching or contracting process.

[0011] Preferably, one end of the I-shaped rod is fixedly connected with a rotating block, and three sliding grooves are opened on the inner side of the U-shaped outer plate.

[0012] The effects achieved by the above components are as follows: The rotating block rotates to drive the I-shaped rod to rotate.

[0013] Preferably, a sliding plate is slidably connected inside the sliding groove. One side of the three sliding plates is fixedly connected with the U-shaped inner plate. One side of the mounting plate is slidably connected with a limiting plate, and one side of the limiting plate is fixedly connected with the bottom plate.

[0014] The effects achieved by the above components are as follows: The U-shaped inner plate moves to drive the sliding plate to slide in the sliding groove.

[0015] Preferably, a limiting device is provided at the top end of the bottom plate. The limiting device includes a moving plate. One side of the moving plate is slidably connected with the bottom plate, and two guiding grooves are opened on one side of the moving plate.

[0016] The effects achieved by the above components are as follows: The guiding grooves are opened on the moving plate.

[0017] Preferably, a rubber rod is slidably connected inside the guiding groove. One side of the two rubber rods is fixedly connected with the bottom plate.

[0018] The effects achieved by the above components are as follows: The rubber rod slides in the guiding groove.

[0019] Preferably, one end of the moving plate is fixedly connected with a handle, and the cross-section of the handle is in a "U" shape.

[0020] The effects achieved by the above components are as follows: The handle is pulled to drive the moving plate to move.

[0021] Preferably, a T-shaped plate is fixedly connected to one side of the moving plate. The T-shaped plate is slidably connected to the outside of a T-shaped groove plate, and one side of the T-shaped groove plate is fixedly connected with the mounting plate.

[0022] The effects achieved by the above components are as follows: The moving plate drives the T-shaped plate to slide in the T-shaped groove plate.

[0023] In summary, the beneficial effects of the present utility model are as follows:

[0024] In the present utility model, through the fixing device, when it is necessary to replace the fixture, the screw rod is disengaged from the internal thread ring, the limit on the fixing plate is eliminated, and the limit fixation of the inclined surface pressing plate on the mounting plate is released, so that the fixture can be replaced. Through the fixing device, the problem of the traditional mechanical quick-change fixture structure is solved. The fixation of the fixture is basically completed by using bolts for connection and fixation, resulting in a cumbersome disassembly and assembly of the fixture.

[0025] In the present utility model, through the limiting device, when it is necessary to improve the installation stability of the fixture, the moving plate is pushed towards the direction close to the rubber rod so that the rubber rod slides into the guiding groove, and the T-shaped plate slides into the T-shaped groove plate. Through the limiting device, the problem of the traditional mechanical quick-change fixture structure is solved. The fixture is fixed by the assembly of the screw rod. During long-term operation of the machine, the connection of the fixture is likely to become loose, resulting in low installation stability of the fixture. Brief Description of the Drawings

[0026] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0027] Figure 2 is a structural schematic diagram of the fixing device of the present utility model;

[0028] Figure 3 is a partial exploded structural schematic diagram of the fixing device of the present utility model;

[0029] Figure 4 is a structural schematic diagram of the limiting device of the present utility model;

[0030] Figure 5 is a partial sectional structural schematic diagram of the fixing device of the present utility model.

[0031] Legend Explanation: 1. Bottom plate; 2. Fixing device; 201. U-shaped outer plate; 202. Telescopic rod; 203. Spring; 204. U-shaped inner plate; 205. Internal thread ring; 206. Screw rod; 207. I-shaped rod; 208. Fixing plate; 209. Inclined surface pressing plate; 210. Mounting plate; 211. Limiting plate; 212. Rotating block; 213. Chute; 214. Slide plate; 3. Limiting device; 31. T-shaped groove plate; 32. T-shaped plate; 33. Moving plate; 34. Guiding groove; 35. Rubber rod; 36. Handle; 4. Fixture body. Detailed Embodiment

[0032] Referring to Figure 1 as shown, the present utility model provides a technical solution: a mechanical quick-change fixture structure, including a bottom plate 1 and a fixture body 4. Fixing devices 2 are provided on both sides of the bottom plate 1, and a limiting device 3 is provided at the top end of the bottom plate 1.

[0033] The following specifically describes the specific settings and functions of its fixing device 2 and limiting device 3.

[0034] Reference Figure 2 , Figure 3 and Figure 5 As shown, in this embodiment: the fixing device 2 includes two U-shaped outer plates 201, and the sides of the two U-shaped outer plates 201 close to each other are fixedly connected to the bottom plate 1, the inner side of the U-shaped outer plate 201 is fixedly connected with an internal threaded ring 205, the internal thread of the internal threaded ring 205 is connected with a screw 206, one end of the screw 206 is fixedly connected with an I-shaped rod 207, the arc surface of the I-shaped rod 207 is slidably connected with the U-shaped inner plate 204, the outside of the U-shaped inner plate 204 is slidably connected to the U-shaped outer plate 201, one side of the U-shaped inner plate 204 is fixedly connected with a fixing plate 208, one side of the fixing plate 208 is slidably connected to the I-shaped rod 207, one side of the fixing plate 208 is fixedly connected with an inclined pressure plate 209, one side of the two inclined pressure plates 209 is slidably connected with a mounting plate 210, and one side of the mounting plate 210 is fixedly connected to the fixture body 4. After the I-shaped rod 207 rotates and drives the screw rod 206 to completely disengage from the internal thread ring 205, the fixed plate 208 drives the inclined pressure plate 209 away from the mounting plate 210, eliminating the effect of limiting and fixing the mounting plate 210. Four telescopic rods 202 are fixedly connected to the inner side of the U-shaped outer plate 201, and the output ends of the four telescopic rods 202 are fixedly connected to the U-shaped inner plate 204. The U-shaped inner plate 204 moves to drive the telescopic rod 202 to extend and retract. The arc surface of the telescopic rod 202 is sleeved with a spring 203, and the two ends of the four springs 203 are respectively fixedly connected to the U-shaped outer plate 201 and the U-shaped inner plate 204. The telescopic rod 202 prevents the spring 203 from deforming during the stretching or contraction process. One end of the I-shaped rod 207 is fixedly connected to a rotating block 212, and three sliding grooves 213 are provided on the inner side of the U-shaped outer plate 201. The rotating block 212 rotates to drive the I-shaped rod 207 to rotate. The slide plate 214 is slidably connected inside the slide groove 213, one side of the three slide plates 214 is fixedly connected to the U-shaped inner plate 204, one side of the mounting plate 210 is slidably connected to the limit plate 211, and one side of the limit plate 211 is fixedly connected to the bottom plate 1. The U-shaped inner plate 204 moves to drive the slide plate 214 to slide in the slide groove 213.

[0035] Reference Figure 4As shown in the figure, in this embodiment: The limiting device 3 includes a moving plate 33. One side of the moving plate 33 is slidably connected to the bottom plate 1, and two guiding grooves 34 are formed on one side of the moving plate 33. The effect that the guiding grooves 34 are formed on the moving plate 33 is achieved. A rubber rod 35 is slidably connected inside the guiding grooves 34, and one side of the two rubber rods 35 is fixedly connected to the bottom plate 1. The effect that the rubber rod 35 slides in the guiding grooves 34 is achieved. One end of the moving plate 33 is fixedly connected to a handle 36, and the cross-section of the handle 36 is in a "U" shape. The effect that the handle 36 drives the moving plate 33 to move under tension is achieved. One side of the moving plate 33 is fixedly connected to a T-shaped plate 32, and the outside of the T-shaped plate 32 is slidably connected to a T-shaped groove plate 31. One side of the T-shaped groove plate 31 is fixedly connected to the mounting plate 210. The effect that the moving plate 33 drives the T-shaped plate 32 to slide in the T-shaped groove plate 31 is achieved.

[0036] Working principle: Through the fixing device 2, when it is necessary to replace the fixture, the operator first rotates the rotating block 212 to drive the I-shaped rod 207 to rotate, so that the I-shaped rod 207 drives the screw rod 206 to rotate, and the screw rod 206 is completely disengaged from the internal thread ring 205. Then, the fixing plate 208 can be pulled away from the bottom plate 1. The fixing plate 208 drives the U-shaped inner plate 204 away from the U-shaped outer plate 201. At this time, the telescopic rod 202 and the spring 203 are in a stretched state. At the same time, the inclined surface pressing plate 209 moves away from the mounting plate 210, eliminating the limit on the mounting plate 210, and the mounting plate 210 can be disassembled to disassemble the fixture. Repeating the above opposite steps can complete the replacement of the fixture. Through the fixing device 2, the problem of the traditional mechanical quick-change fixture structure is solved. When the fixture is used for different workpieces, different fixtures need to be equipped to realize picking and placing. The fixing of the fixture is basically completed by using bolts. A large number of auxiliary tools are required when replacing the fixture, resulting in cumbersome disassembly and assembly of the fixture and long operation time, which affects the production efficiency.

[0037] Through the limiting device 3, when it is necessary to improve the installation stability of the fixture, the operator first fixes the T-shaped groove plate 31 and the mounting plate 210, and then fixes the fixture. Then, the moving plate 33 can be moved. The guiding grooves 34 formed on the moving plate 33 are aligned with the rubber rods 35. At the same time, the slots on the T-shaped plate 32 and the T-shaped groove plate 31 are aligned. Then, the moving plate 33 is pushed towards the rubber rod 35 to make the rubber rod 35 slide into the guiding grooves 34, and the T-shaped plate 32 slides into the T-shaped groove plate 31, strengthening the stability of the fixture after installation. Through the limiting device 3, the problem of the traditional mechanical quick-change fixture structure is solved. The fixture is fixed by the assembly of the screw rod 206. During long-term operation of the machine, the connection of the fixture is likely to become loose, resulting in low installation stability of the fixture.

[0038] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. A mechanical quick-change fixture structure, comprising a base plate (1) and a fixture body (4), characterized in that: On both sides of the bottom plate (1), there are fixing devices (2). The fixing devices (2) include two U-shaped outer plates (201). On the side where the two U-shaped outer plates (201) are close to each other, they are fixedly connected to the bottom plate (1). Inside the U-shaped outer plate (201), there is an internally threaded ring (205) fixedly connected. Inside the internally threaded ring (205), there is a screw rod (206) threadedly connected. One end of the screw rod (206) is fixedly connected to a T-shaped rod (207). On the arc surface of the T-shaped rod (207), there is a U-shaped inner plate (204) slidably connected. The outside of the U-shaped inner plate (204) is slidably connected to the U-shaped outer plate (201). On one side of the U-shaped inner plate (204), there is a fixing plate (208) fixedly connected. One side of the fixing plate (208) is slidably connected to the T-shaped rod (207). On one side of the fixing plate (208), there is an inclined surface pressing plate (209) fixedly connected. On one side of the two inclined surface pressing plates (209), there is a mounting plate (210) slidably connected. One side of the mounting plate (210) is fixedly connected to the fixture body (4).

2. A mechanical quick-change fixture structure according to claim 1, characterized in that: Inside the U-shaped outer plate (201), there are four telescopic rods (202) fixedly connected. The output ends of the four telescopic rods (202) are fixedly connected to the U-shaped inner plate (204).

3. The structure of a mechanical quick-change fixture according to claim 2, wherein: On the arc surface of the telescopic rod (202), there is a spring (203) sleeved. The two ends of the four springs (203) are respectively fixedly connected to the U-shaped outer plate (201) and the U-shaped inner plate (204).

4. A mechanical quick-change fixture structure according to claim 2, characterized in that: One end of the T-shaped rod (207) is fixedly connected to a rotating block (212). Inside the U-shaped outer plate (201), there are three sliding grooves (213) opened.

5. A mechanical quick-change fixture structure according to claim 4, characterized in that: Inside the sliding groove (213), there is a sliding plate (214) slidably connected. On one side of the three sliding plates (214), they are fixedly connected to the U-shaped inner plate (204). On one side of the mounting plate (210), there is a limiting plate (211) slidably connected. One side of the limiting plate (211) is fixedly connected to the bottom plate (1).

6. The structure of a mechanical quick-change fixture according to claim 1, characterized in that: On the top end of the bottom plate (1), there is a limiting device (3). The limiting device (3) includes a moving plate (33). One side of the moving plate (33) is slidably connected to the bottom plate (1). On one side of the moving plate (33), there are two guiding grooves (34) opened.

7. A mechanical quick-change fixture structure according to claim 6, characterized in that: Inside the guiding groove (34), there is a rubber rod (35) slidably connected. On one side of the two rubber rods (35), they are fixedly connected to the bottom plate (1).

8. A mechanical quick-change fixture structure according to claim 6, characterized in that: One end of the moving plate (33) is fixedly connected to a handle (36). The cross-section of the handle (36) is in a "U" shape.

9. The structure of a mechanical quick-change fixture according to claim 8, wherein: On one side of the moving plate (33), there is a T-shaped plate (32) fixedly connected. Outside the T-shaped plate (32), there is a T-shaped groove plate (31) slidably connected. One side of the T-shaped groove plate (31) is fixedly connected to the mounting plate (210).

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