Clamp device for numerical control machining

Abstract

The utility model relates to a clamp device for numerical control machining, which comprises a fixed bottom plate, a sliding clamping block, a fixed clamping block, a clamping platform, a gear set, a locking mechanism, a roller, a roller connecting rod, a reset device, a spring bolt deflector rod and a connecting rod fixing seat, the clamping platform is installed on the fixed bottom plate, the locking mechanism has a certain locking effect on the clamp, the cross section of the spring bolt is designed to be a rectangle plus a quarter circle, the first spring is arranged on one side of the spring bolt, the contact position of the spring bolt shifting rod and the spring bolt can easily rotate upwards but is difficult to move downwards, and the clamp can conduct locking during clamping. When clamping needs to be loosened, the sliding knob needs to be shifted to pull back the spring bolt, at the moment, due to the existence of the reset device, manual shifting of the spring bolt shifting rod is not needed, the manual clamping efficiency can be optimized through the gear set, the sliding knob and the like adopted by the clamping device, and the reset device can be rapidly reset when clamping is loosened.

Description

Technical Field

[0001] This utility model relates to the field of CNC machining, specifically a fixture device for CNC machining. Background Technology

[0002] A fixture is a device used in mechanical manufacturing to fix a workpiece in the correct position for operation or inspection. In a broader sense, any device used to quickly, conveniently, and safely install a workpiece at any stage of the manufacturing process can be called a fixture.

[0003] Chinese patent discloses a fixture device for CNC machining (authorization announcement number CN 219131516 U). This patented technology can adjust the angles of the first and second angle positions, so that the CNC machine tool is not limited by the angle during the machining operation, and the machining angle can be flexibly adjusted, which greatly improves the machining efficiency.

[0004] However, the clamping mechanism of this utility model requires numerous manual operations, lacks design for optimizing clamping efficiency, suffers from insufficient flexibility due to the use of multiple fastening bolts, and lacks a design for rapid clamp reset after release. Therefore, those skilled in the art have provided a CNC machining clamping device to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to provide a fixture device for CNC machining to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A CNC machining fixture device includes a fixed base plate, a sliding clamping block, a fixed clamping block, a clamping platform, a gear set, a locking mechanism, rollers, roller connecting rods, a locking tongue lever, a reset device, and a connecting rod fixing seat. A limit platform is installed on the fixed base plate, and a fixed clamping block is installed inside the limit platform. Two sliding groove vertical plates are provided on the fixed base plate, and the sliding groove vertical plates are installed on the outside of the sliding clamping block. The lower two sides of the sliding clamping block are provided with sliding grooves that cooperate with the sliding groove vertical plates. A base plate slide rail is provided on the fixed base plate, and the base plate slide rail is slidably connected to the sliding clamping block. A clamping platform is installed on the fixed base plate.

[0008] As a further embodiment of this utility model: a locking tongue is provided on one side of the locking mechanism, the cross-sectional shape of which is a rectangle plus a quarter circle, and a spring is provided on one side of the locking tongue.

[0009] As a further solution of this utility model: the gear set includes a large gear and a small gear. The small gear is provided on one side of the large gear. An adjustment handle is installed on the small gear. The manual input can be input to the gear set through the adjustment handle. Since the displacement of the clamp is small but requires a larger torque, the gear set plays the role of reducing the speed and increasing the torque. The power input of the gear set is the roller connecting rod.

[0010] As a further improvement of this utility model: a locking mechanism has a locking tongue on one side, a spring at one end of the locking tongue, and a lock cylinder at one end of the spring. The lock cylinder is mounted on a fixed wall. Several adjusting grooves are provided on the vertical surface of the fixed wall, and a sliding knob is provided within each adjusting groove. The sliding knob is located on the side of the locking tongue. A locking tongue slide rail is provided at the top of the locking tongue, and a locking tongue groove is provided at the bottom of the locking tongue. The fixed wall also has a slide rail at the contact point with the locking tongue groove, and a groove at the contact point with the locking tongue slide rail. Because the connecting rod fixing seat and the locking tongue lever are fixed... The clamp is fixedly connected, and the locking lever is limited by the locking mechanism. The locking mechanism has a certain locking effect on the clamp. Since the cross-sectional shape of the locking tongue is designed as a rectangle plus a quarter circle and there is a spring on one side of the locking tongue, the contact point between the locking lever and the locking tongue can easily rotate upward but is difficult to rotate downward. This means that the clamp can lock when clamping. When it is necessary to loosen the clamp, the sliding button needs to be turned to pull back the locking tongue. At this time, because of the presence of the second spring, the locking lever has a tendency to rotate downward, so there is no need to manually turn the locking lever.

[0011] As a further embodiment of this utility model: a reset device is provided on the outer side of the sliding clamping block. The reset device includes a second spring, a boss and a striker. The second spring and the boss are connected. The boss is set on the fixed base plate and the striker is provided on the boss.

[0012] As a further embodiment of this utility model: a roller is provided on the outer side of the sliding clamping block, and chucks are provided at both ends of the roller. A roller connecting rod is provided at one end of the roller and is mounted on a connecting rod fixing seat. A locking mechanism is provided at the thicker end of the locking tongue lever, and a mounting bracket is provided at the thinner end of the locking tongue lever. The roller connecting rod is also mounted on the mounting bracket. A gear set is provided on one side of the connecting rod fixing seat. During the rotation of the roller connecting rod, the roller is driven to make a circular motion, so that when the roller moves downward, it presses the sliding clamping block close to the fixing clamping block to form a clamp. The chucks play a limiting role for the roller. When the roller moves upward, the sliding clamping block retracts under the action of the second spring and stops after hitting the impact platform. The clamp automatically resets.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The gear set and sliding button used in this utility model can optimize the efficiency of manual clamping;

[0015] 2. The reset device used in this utility model can quickly reset when the clamp is released;

[0016] 3. The clamping method used in this utility model is more flexible than bolt clamping. Attached Figure Description

[0017] Fig. 1 This is a schematic diagram of a fixture device for CNC machining.

[0018] Fig. 2 This is a structural schematic diagram of a CNC machining fixture device from another perspective.

[0019] Fig. 3 This is a schematic diagram of the reset device in a CNC machining fixture.

[0020] Fig. 4 This is a schematic diagram of the locking mechanism in a CNC machining fixture device.

[0021] Fig. 5 This is a front view of a fixture device for CNC machining.

[0022] Fig. 6 This is a rear view of a locking mechanism in a CNC machining fixture.

[0023] Fig. 7 This is a schematic diagram of the sliding clamping block in a CNC machining fixture device.

[0024] In the diagram: 1. Fixed base plate; 101. Limiting platform; 102. Sliding clamp; 103. Fixed clamp; 104. Clamping platform; 105. Slide groove vertical plate; 106. Base plate slide rail; 2. Gear set; 201. Large gear; 202. Small gear; 203. Adjusting handle; 3. Locking mechanism; 301. Slide button; 302. Adjusting slide groove; 303. Lock tongue; 304. Lock cylinder; 305. Fixed wall; 306. Spring one; 307. Lock tongue slide groove; 308. Lock tongue slide rail; 4. Roller; 401. Roller connecting rod; 402. Lock tongue lever; 403. Connecting rod fixing seat; 404. Chuck; 5. Reset device; 501. Spring two; 502. Boss; 503. Bumper. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figs. 1-7In this embodiment of the utility model, a CNC machining fixture device includes a fixed base plate 1, a sliding clamping block 102, a fixed clamping block 103, a clamping platform 104, a gear set 2, a locking mechanism 3, a roller 4, a roller connecting rod 401, a locking tongue lever 402, a reset device 5, and a connecting rod fixing seat 403. A limiting platform 101 is installed on the fixed base plate 1, and a fixed clamping block 103 is installed inside the limiting platform 101. Two sliding groove vertical plates 105 are provided on the fixed base plate 1. The sliding groove vertical plates 105 are installed on the outside of the sliding clamping block 102. The lower two sides of the sliding clamping block 102 are provided with sliding grooves that cooperate with the sliding groove vertical plates 105. A base plate slide rail 106 is provided on the fixed base plate 1. The base plate slide rail 106 is slidably connected to the sliding clamping block 102. A clamping platform 104 is installed on the fixed base plate 1.

[0027] A roller 4 is provided on the outer side of the sliding clamp 102. A chuck 404 is provided at both ends of the roller 4. A roller connecting rod 401 is provided at one end of the roller 4. The roller connecting rod 401 is mounted on the connecting rod fixing seat 403. A locking mechanism 3 is provided at the thicker end of the locking tongue lever 402. The thinner end of the locking tongue lever 402 is mounted on the corresponding mounting bracket. The roller connecting rod 401 is also mounted on the mounting bracket. A gear set 2 is provided on one side of the connecting rod fixing seat 403. The gear set 2 includes a large gear 201 and a small gear 202. The large gear 201 is mounted on one side of the small gear 202. An adjusting handle 203 is provided on the small gear 202.

[0028] The outer side of the sliding clamp 102 is provided with a reset device 5. The reset device 5 includes a second spring 501, a boss 502 and a striker 503. The second spring 501 is provided on one side of the boss 502. The boss 502 is provided on the fixed base plate 1. The boss 502 is provided with a striker 503.

[0029] The locking mechanism 3 has a latch 303 on one side, a spring 306 at one end of the latch 303, a lock cylinder 304 at one end of the spring 306, and the lock cylinder 304 is mounted on the fixed wall 305. The vertical surface of the fixed wall 305 has several adjusting grooves 302, and a sliding button 301 is provided in the adjusting groove 302. The sliding button 301 is located on the side of the latch 303. The top of the latch 303 has a latch slide rail 308, and the bottom of the latch 303 has a latch groove 307. The fixed wall 305 also has a slide rail at the contact point with the latch groove 307 and a groove at the contact point with the latch slide rail 308.

[0030] The working principle of this utility model is as follows:

[0031] Manual force can be input to gear set 2 via adjustment handle 203. Since the displacement of the clamp is small but requires a larger torque, gear set 2 plays the role of reducing the speed and increasing the torque. The power input of gear set 2 is to roller connecting rod 401.

[0032] During the rotation of the roller linkage 401, the roller 4 is driven to make a circular motion, so that when the roller 4 moves downward, it presses the sliding clamp 102 close to the fixed clamp 103 to form a clamp. The chuck 404 plays a limiting role for the roller 4. When the roller 4 moves upward, the sliding clamp 102 retracts under the action of the second spring 501 and stops after hitting the impact platform 503, and the clamp automatically resets.

[0033] The angle between the connecting rod fixing seat 403 and the locking tongue lever 402 is fixed, while the locking tongue lever 402 is limited by the locking mechanism 3. The locking mechanism 3 forms a certain locking effect on the clamp. Since the cross-sectional shape of the locking tongue 303 is designed as a rectangle plus a quarter circle and a spring 306 is provided on one side of the locking tongue 303, the contact point between the locking tongue lever 402 and the locking tongue 303 can easily rotate upward but is difficult to rotate downward. This means that the clamp can lock when clamped. When it is necessary to loosen the clamp, the sliding button 301 needs to be turned to pull back the locking tongue 303. At this time, because of the presence of the second spring 501, the locking tongue lever 402 has a tendency to rotate downward, so there is no need for manual operation to turn the locking tongue lever 402.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A fixture device for CNC machining, characterized in that, The device includes a fixed base plate (1), a sliding clamping block (102), a fixed clamping block (103), a clamping platform (104), a gear set (2), a locking mechanism (3), a roller (4), a roller connecting rod (401), a locking tongue lever (402), a reset device (5), and a connecting rod fixing seat (403). A limiting platform (101) is installed on the fixed base plate (1), and a fixed clamping block (103) is installed inside the limiting platform (101). Two sliding groove vertical plates (105) are provided on the fixed base plate (1). The sliding groove vertical plates (105) are installed on the outside of the sliding clamping block (102). The lower two sides of the sliding clamping block (102) are provided with sliding grooves that cooperate with the sliding groove vertical plates (105). A base plate slide rail (106) is provided on the fixed base plate (1). The base plate slide rail (106) is slidably connected to the sliding clamping block (102). A clamping platform (104) is installed on the fixed base plate (1).

2. The CNC machining fixture device according to claim 1, characterized in that, The outer side of the sliding clamp (102) is provided with a roller (4), and the two ends of the roller (4) are provided with chucks (404). One end of the roller (4) is provided with a roller connecting rod (401). The roller connecting rod (401) is mounted on the connecting rod fixing seat (403). The thicker end of the locking tongue lever (402) is provided with a locking mechanism (3). The thinner end of the locking tongue lever (402) is mounted on the mounting bracket. The roller connecting rod (401) is also mounted on the mounting bracket.

3. A fixture device for CNC machining according to claim 2, characterized in that, A gear set (2) is provided on one side of the connecting rod fixing seat (403). The gear set (2) includes a large gear (201) and a small gear (202). The large gear (201) is installed on one side of the small gear (202), and an adjustment handle (203) is provided on the small gear (202).

4. A fixture device for CNC machining according to claim 2, characterized in that, The locking mechanism (3) has a locking tongue (303) on one side, a spring (306) at one end of the locking tongue (303), a lock cylinder (304) at one end of the spring (306), and the lock cylinder (304) is installed on a fixed wall (305). The fixed wall (305) has several adjusting grooves (302) on its vertical surface.

5. A fixture device for CNC machining according to claim 4, characterized in that, The adjusting slide (302) is provided with a sliding button (301), which is located on the side of the latch (303). The top of the latch (303) is provided with a latch slide rail (308), and the bottom of the latch (303) is provided with a latch slide groove (307). The fixed wall (305) is also provided with a slide rail at the contact point with the latch slide groove (307), and the fixed wall (305) is also provided with a slide groove at the contact point with the latch slide rail (308).

6. A fixture device for CNC machining according to claim 1, characterized in that, The sliding clamp (102) is provided with a reset device (5) on its outer side. The reset device (5) includes a second spring (501), a boss (502) and a bumper (503). The second spring (501) is provided on one side of the boss (502). The boss (502) is provided on the fixed base plate (1). The bumper (503) is provided on the boss (502).

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