CNC clamp

Abstract

The utility model discloses a CNC clamp, and belongs to the technical field of clamps. The CNC clamp comprises a base, side blocks used for supporting are symmetrically arranged at the top of the base, pressing claws are symmetrically arranged between the two sets of side blocks, the sides, close to each other, of the two sets of pressing claws are in an inward concave shape, rotating shafts are arranged on the left sides and the right sides of the two sets of pressing claws, and the rotating shafts penetrate through the side blocks and extend to the outer sides of the side blocks. According to the device, the symmetrically-arranged pressing claws are matched with the supporting cylinders arranged at the bottoms of the pressing claws, so that the ribs can be conveniently clamped, and vibration generated when the ribs are machined can be avoided through the clamping mode.

Description

Technical Field

[0001] This application relates to the field of fixture technology, specifically to CNC fixtures. Background Technology

[0002] CNC fixtures serve as a medium for stability and positioning, primarily used to correctly fix, support, or install workpieces on CNC machine tools. They ensure consistency and interchangeability in the manufacturing process, facilitate smooth manufacturing, and reduce human effort during manufacturing. However, existing CNC fixtures are not stable enough when clamping ribs, leading to vibration during machining and causing damage to the ribs. Utility Model Content

[0003] To achieve the above objectives, the technical solution adopted in this application is as follows: a CNC fixture, including a base, with side blocks symmetrically arranged on the top of the base for support, and pressure claws symmetrically arranged between the two sets of side blocks. The sides of the two sets of pressure claws that are close to each other are concave, and rotating shafts are arranged on the left and right sides of the two sets of pressure claws, and the rotating shafts extend through the side blocks to their outer sides.

[0004] Preferably, the side block has symmetrically formed circular grooves inside, and the side block is rotatably connected to the rotating shaft through the circular grooves.

[0005] Preferably, the bottom of the pressure claw is provided with a connecting groove, the cross-section of the connecting groove is circular, and the support cylinders are symmetrically installed inside the base.

[0006] Preferably, the support cylinder extends through the top of the base to its outer side, and a connecting ball is fixedly installed on the top of the support cylinder. The pressure claw is spherically connected to the connecting ball through a connecting groove.

[0007] Preferably, a transmission assembly is fixedly installed on the outer side of a set of the side blocks. The transmission assembly includes a pad installed on the outer side of the side block. The pad is U-shaped, and a first transmission shaft is sleeved on the top of the pad.

[0008] Preferably, a transmission plate is fixedly installed on the outer side of the first transmission shaft. The transmission plate is threaded and the outer side of the transmission plate is made of rubber.

[0009] Preferably, the transmission plate has symmetrically arranged horizontal plates at both ends, the horizontal plates are rotatably sleeved with the first transmission shaft, and the horizontal plates extend through both sides of the pad to its outer side.

[0010] Preferably, the pad has symmetrical side grooves on both sides, and the pad is sleeved with two sets of horizontal plates through the side grooves. Electric push rods are symmetrically arranged on both sides of the pad, and the top of each electric push rod is fixedly connected to the horizontal plate.

[0011] Preferably, connecting rods are symmetrically installed at both ends of the outer side of a set of cross plates on the side away from the base. The other end of the connecting rod extends to the outer side of the pad. A first rotating shaft is fixedly installed at the other end of the connecting rod. A second rotating shaft is sleeved on the bottom edge of the pad. A first synchronous belt is sleeved on the outer side of the second rotating shaft, the first transmission shaft, and the two sets of first rotating shafts.

[0012] Preferably, a second synchronous belt is sleeved on the outer side of the other end of the second rotating shaft. The second synchronous belt extends through the bottom of the pad to its outer side and is inclined. A second drive shaft is sleeved on the other side of the second synchronous belt and extends through the side wall of the pad to its interior. A second spring is arranged in an array on the outer side of the second drive shaft, and a first spring is arranged in an array on the outer side of one end of the rotating shaft, and the first spring matches the second spring.

[0013] Compared with the prior art, the beneficial effects of this application are as follows:

[0014] (1) The symmetrically arranged pressure claws, together with the support cylinder at the bottom of the pressure claws, facilitate the clamping of the ribs, and this clamping method can also avoid vibration during the processing of the ribs.

[0015] (2) The transmission components are designed to provide secondary limit when the ribs are horizontally clamped, thereby preventing the ribs from bending due to external force during processing. After the ribs are processed, the support cylinder and pressure claw can be used to unload and transport the ribs. Attached Figure Description

[0016] Figure 1 This is an exploded view of the CNC fixture proposed in this utility model;

[0017] Figure 2 This is a side view of the structure of the CNC fixture proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the CNC fixture proposed in this utility model;

[0019] Figure 4 This is a cross-sectional view of the CNC fixture base proposed in this utility model;

[0020] Figure 5 This is a schematic diagram of the CNC fixture transmission assembly proposed in this utility model;

[0021] Figure 6 This is a schematic diagram of the connection structure of the first drive shaft of the CNC fixture proposed in this utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the CNC fixture pad proposed in this utility model.

[0023] In the diagram: 1. Base; 2. Support cylinder; 3. Connecting ball; 4. Side block; 5. Circular groove; 6. Pressing claw; 7. Connecting groove; 8. Rotating shaft; 9. First spring; 10. Transmission assembly; 1001. Pad; 1002. Electric push rod; 1003. Horizontal plate; 1004. First transmission shaft; 1005. Transmission plate; 1006. Connecting rod; 1007. First rotating shaft; 1008. Second rotating shaft; 1009. First synchronous belt; 1010. Second synchronous belt; 1011. Second transmission shaft; 1012. Second spring; 1013. Side groove. Detailed Implementation

[0024] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] In the description of this application, it should be noted that the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., which indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of this application.

[0026] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0027] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0028] The existing technology has the following defects: the existing CNC fixture is not stable enough when clamping the ribs, which leads to vibration during the machining process and damage to the ribs.

[0029] As an improvement, such as Figures 1-7 As shown, the preferred embodiment of this application is as follows:

[0030] The CNC fixture includes a base 1. The top of the base 1 is symmetrically provided with side blocks 4 for support. The two sets of side blocks 4 are symmetrically provided with pressure claws 6. The side of the two sets of pressure claws 6 that is close to each other is concave. The left and right sides of the two sets of pressure claws 6 are provided with rotating shafts 8, and the rotating shafts 8 extend through the side blocks 4 to their outer sides.

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in this embodiment, the side block 4 has symmetrically provided circular grooves 5 inside, and the side block 4 is rotatably connected to the rotating shaft 8 through the circular grooves 5;

[0032] The bottom of the pressure claw 6 is provided with a connecting groove 7, the cross-section of the connecting groove 7 is circular, and the support cylinder 2 is symmetrically installed inside the base 1;

[0033] The support cylinder 2 extends through the top of the base 1 to its outer side. A connecting ball 3 is fixedly installed on the top of the support cylinder 2. The pressure claw 6 is spherically connected to the connecting ball 3 through the connecting groove 7.

[0034] Specifically, the pressure claw 6 is connected to the support cylinder 2 by connecting the connecting groove 7 at the bottom of the pressure claw 6 and connecting ball 3. Therefore, when the support cylinder 2 reciprocates, it is easy to push the pressure claw 6 to rotate around the rotating shaft 8 through the connecting ball 3 and connecting groove 7.

[0035] like Figure 5 , Figure 6 and Figure 7 As shown, in this embodiment, a transmission assembly 10 is fixedly installed on the outer side of a set of side blocks 4. The transmission assembly 10 includes a pad 1001 installed on the outer side of the side blocks 4. The pad 1001 is U-shaped, and a first transmission shaft 1004 is sleeved on the top of the pad 1001.

[0036] A transmission plate 1005 is fixedly installed on the outer side of the first transmission shaft 1004. The transmission plate 1005 is threaded and the outer side of the transmission plate 1005 is made of rubber.

[0037] The horizontal plate 1003 is rotatably sleeved with the first drive shaft 1004, and the horizontal plate 1003 extends through both sides of the pad 1001 to its outer side.

[0038] The pad 1001 has symmetrically provided side grooves 1013 on both sides. The pad 1001 is sleeved with two sets of horizontal plates 1003 through the side grooves 1013. Electric push rods 1002 are symmetrically provided on both sides of the pad 1001, and the top of the electric push rods 1002 is fixedly connected to the horizontal plates 1003.

[0039] Specifically, the height of the horizontal plate 1003 is changed by the electric push rod 1002, thereby adjusting the height of the first transmission shaft 1004 sleeved inside the horizontal plate 1003, which, together with the transmission plate 1005 and the pad 1001 fixedly installed on its outer side, clamps and limits the ribs of different thicknesses.

[0040] like Figure 5 , Figure 6 and Figure 7 As shown, in this embodiment, connecting rods 1006 are symmetrically installed at both ends of a set of horizontal plates 1003 on the side away from the base 1. The other end of the connecting rod 1006 extends to the outside of the pad 1001. A first rotating shaft 1007 is fixedly installed at the other end of the connecting rod 1006. A second rotating shaft 1008 is sleeved on the bottom edge of the pad 1001. A first synchronous belt 1009 is sleeved on the outside of the second rotating shaft 1008, the first transmission shaft 1004, and the two sets of first rotating shafts 1007.

[0041] A second synchronous belt 1010 is sleeved on the outer side of the other end of the second rotating shaft 1008. The second synchronous belt 1010 extends through the bottom of the pad 1001 to its outer side and is inclined. A second drive shaft 1011 is sleeved on the other side of the second synchronous belt 1010 and extends through the side wall of the pad 1001 to its interior. A second spring sheet 1012 is arranged in an array on the outer side of the second drive shaft 1011. A first spring sheet 9 is arranged in an array on the outer side of one end of a set of rotating shafts 8 and the first spring sheet 9 matches the second spring sheet 1012.

[0042] Specifically, a set of reciprocating rotating shafts 8, in conjunction with the first spring plates 9 mounted on their outer array, utilizes the principle of ratchet and pawl to drive the second spring plates 1012 on the outer array of the second transmission shaft 1011 to rotate continuously. This drives the second rotating shaft 1008 to rotate via the second synchronous belt 1010. Consequently, the first transmission shaft 1004 can be driven to rotate synchronously via the first synchronous belt 1009. The transmission effect is then achieved via the spirally arranged transmission plate 1005.

[0043] At the same time, as the horizontal plate 1003 descends, it will drive the first rotating shaft 1007 to rotate synchronously through the connecting rod 1006, thereby ensuring that the first synchronous belt 1009 is always in a taut state.

[0044] The working principle of this application is as follows: First, take out the device and place it in an appropriate position. When using it, first take out the rib to be processed and place it on the top of the device. At this time, determine the clamping method of the rib. If vertical clamping is required, start the support cylinder 2 and cooperate with the connecting ball 3 fixedly installed on the top of the two sets of support cylinders 2 and drive the two sets of pressure claws 6 to move closer to each other through the connecting groove 7, thereby clamping the rib.

[0045] If horizontal clamping is required, the rib is passed through the pad 1001 and the two sets of clamping claws 6. The above steps are repeated, and the rib is clamped by the two sets of clamping claws 6. Then, the four sets of electric push rods 1002 are started simultaneously. The electric push rods 1002, together with the two sets of horizontal plates 1003, drive the first drive shaft 1004 to move down. Then, the drive plate 1005 fixedly installed on the outside of the first drive shaft 1004 clamps the rib a second time, thereby avoiding deviation during processing.

[0046] After processing is completed, the support cylinder 2 is started in reverse and the two sets of pressure claws 6 are released, thereby releasing the rib. At this time, the support cylinder 2 is started repeatedly to make it move back and forth continuously. Then, through the first spring plate 9 and the second spring plate 1012, the second transmission shaft 1011 and the second synchronous belt 1010 are driven to rotate, thereby cooperating with the first synchronous belt 1009, the first rotating shaft 1007 and the first transmission shaft 1004 and the transmission plate 1005 to rotate, thereby realizing the transmission of the rib and facilitating the transportation and unloading of the rib.

[0047] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A CNC fixture, comprising a base (1), characterized in that, The base (1) is symmetrically provided with side blocks (4) for support. There are pressure claws (6) symmetrically provided between the two sets of side blocks (4). The side of the two sets of pressure claws (6) that are close to each other is concave. There are rotating shafts (8) on the left and right sides of the two sets of pressure claws (6), and the rotating shafts (8) extend through the side blocks (4) to their outer side.

2. The CNC fixture as described in claim 1, characterized in that, The side block (4) has symmetrically opened circular grooves (5) inside, and the side block (4) is rotatably connected to the rotating shaft (8) through the circular grooves (5).

3. The CNC fixture as described in claim 1, characterized in that, The bottom of the pressure claw (6) is provided with a connecting groove (7), the cross-section of the connecting groove (7) is circular, and the base (1) is symmetrically equipped with support cylinders (2).

4. The CNC fixture as described in claim 3, characterized in that, The support cylinder (2) extends through the top of the base (1) to its outer side. A connecting ball (3) is fixedly installed on the top of the support cylinder (2). The pressure claw (6) is spherically connected to the connecting ball (3) through the connecting groove (7).

5. The CNC fixture as described in claim 1, characterized in that, A transmission assembly (10) is fixedly installed on the outer side of a set of side blocks (4). The transmission assembly (10) includes a pad (1001) installed on the outer side of the side block (4). The pad (1001) is U-shaped, and a first transmission shaft (1004) is sleeved on the top of the pad (1001).

6. The CNC fixture as described in claim 5, characterized in that, A transmission plate (1005) is fixedly installed on the outer side of the first transmission shaft (1004). The transmission plate (1005) is threaded and the outer side of the transmission plate (1005) is made of rubber.

7. The CNC fixture as described in claim 6, characterized in that, The transmission plate (1005) has symmetrically arranged horizontal plates (1003) at both ends. The horizontal plates (1003) are rotatably sleeved with the first transmission shaft (1004). The horizontal plates (1003) extend through both sides of the pad (1001) to its outer side.

8. The CNC fixture as described in claim 7, characterized in that, The pad (1001) has symmetrically provided side grooves (1013) on both sides. The pad (1001) is sleeved with two sets of horizontal plates (1003) through the side grooves (1013). Electric push rods (1002) are symmetrically provided on both sides of the pad (1001), and the top of the electric push rods (1002) is fixedly connected to the horizontal plates (1003).

9. The CNC fixture as described in claim 8, characterized in that, A connecting rod (1006) is symmetrically installed at both ends of a set of horizontal plates (1003) on the side away from the base (1). The other end of the connecting rod (1006) extends to the outside of the pad (1001). A first rotating shaft (1007) is fixedly installed at the other end of the connecting rod (1006). A second rotating shaft (1008) is sleeved on the bottom edge of the pad (1001). A first synchronous belt (1009) is sleeved on the outside of the second rotating shaft (1008), the first transmission shaft (1004), and the two sets of the first rotating shafts (1007).

10. The CNC fixture as described in claim 9, characterized in that, The other end of the second rotating shaft (1008) is fitted with a second synchronous belt (1010). The second synchronous belt (1010) extends through the bottom of the pad (1001) to its outer side and is inclined. The other side of the second synchronous belt (1010) is fitted with a second drive shaft (1011). The second drive shaft (1011) extends through the side wall of the pad (1001) to its interior. The outer side of the second drive shaft (1011) is provided with a second spring (1012). The outer side of one end of the rotating shaft (8) is provided with a first spring (9), and the first spring (9) matches the second spring (1012).

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