CNC fixture using a slider to tighten

Abstract

The utility model discloses a kind of CNC clamps of using slider to tighten, it includes: clamp main body, several bracing structures and bracing cylinder, the clamp main body is provided with several for containing product containing site, clamp main body is also provided with station hole at each containing site;The bracing cylinder output end passes through station hole and is connected on bracing structure, to drive bracing structure to tighten product.The utility model in the present application, change the traditional mode of screw clamping product, do not need to manually twist screw, only need to put product into containing site, tighten product by bracing cylinder drive bracing structure to facilitate processing, greatly improve production efficiency, and operation is very high in convenience, it is suitable for popularization and application to various CNC clamp structures.In addition, the utility model avoids the problem that screw is easy to slip tooth, effectively reduces clamping time, without manual positioning, effectively liberates artificial.

Description

Technical Field

[0001] This utility model relates to the field of CNC fixture technology, and specifically to a CNC fixture that utilizes a slider for clamping. Background Technology

[0002] With the rapid development of technology, people's demand for various electronic products is constantly increasing. However, many small and complex parts of electronic products rely on CNC machining for production, which makes the demand for CNC machining increasingly higher, and correspondingly, the demand for CNC fixtures is also increasing. CNC machining usually refers to computer digital control precision machining, such as CNC lathes, CNC milling machines, and CNC boring and milling machines. Because CNC machining has high precision, auxiliary fixtures are needed to position the product during machining to meet the machining requirements.

[0003] Currently available CNC fixtures can clamp multiple products simultaneously. For example, Chinese utility model patent application CN212122449 U discloses a CNC fixture comprising a main board, several clamping blocks, and an adjustment component. The main board has mounting holes and mounting slots. The mounting holes are located at both ends of the mounting slots, and the inner wall of the mounting holes has horizontally oriented sliding grooves. The clamping blocks have protrusions on both sides that mate with the sliding grooves. The protrusions are installed in the sliding grooves, allowing the clamping blocks to move along the direction of the sliding grooves. The adjustment component is installed in the mounting slots and can push adjacent clamping blocks on the sliding grooves to move. This fixture uses the adjustment component to simultaneously control the movement of multiple clamping blocks to clamp products, eliminating the need for individual clamping. Simply tightening or loosening the adjusting screws on the adjustment component controls the clamping and releasing of the clamping blocks.

[0004] However, this existing CNC fixture controls the clamping and releasing of the clamping blocks by tightening or loosening the adjusting screws on the adjusting components. This method of clamping products with screws has the following disadvantages: 1. It requires manual tightening of screws with a hex key; 2. The screws are prone to stripping; 3. The clamping time is long; 4. The operator is prone to fatigue.

[0005] In view of the above, the inventors propose the following technical solution. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a CNC fixture that utilizes a slider for clamping.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a CNC fixture using a slider for clamping, comprising: a fixture body for placing products, several clamping structures disposed on the fixture body for clamping the products for processing, and a clamping cylinder disposed on the fixture body and connected to each clamping structure in a transmissive manner. The fixture body is provided with several receiving positions for accommodating products, and the fixture body is also provided with a work position hole at each receiving position. The output end of the clamping cylinder passes through the work position hole and is connected to the clamping structure to drive the clamping structure to clamp the products.

[0008] Furthermore, in the above technical solution, the tensioning structure includes a first slide rail fixedly disposed on the clamp body, a second slide rail disposed on the clamp body, a third slide rail disposed on the clamp body, a fourth slide rail disposed on the clamp body, a first tensioning block slidably disposed between the first slide rail and the second slide rail, a second tensioning block slidably disposed between the second slide rail and the third slide rail, a third tensioning block slidably disposed between the third slide rail and the fourth slide rail, a fourth tensioning block slidably disposed between the fourth slide rail and the first slide rail, and a fifth drive block connected to the output end of the tensioning cylinder and driven by the tensioning cylinder to lift and lower.

[0009] Furthermore, in the above technical solution, the first support block is provided with a first inclined surface, and the fifth drive block is provided with a fifth inclined surface for abutting against the first inclined surface to push the first support block to move; the second support block is provided with a second inclined surface, and the fifth drive block is provided with a sixth inclined surface for abutting against the second inclined surface to push the first support block to move; the third support block is provided with a third inclined surface, and the fifth drive block is provided with a seventh inclined surface for abutting against the third inclined surface to push the third support block to move; the fourth support block is provided with a fourth inclined surface, and the fifth drive block is provided with an eighth inclined surface for abutting against the fourth inclined surface to push the fourth support block to move.

[0010] Furthermore, in the above technical solution, the first supporting block is provided with a first slot, and the fifth driving block is provided with a first protrusion for engaging in the first slot to limit the first supporting block; the second supporting block is provided with a second slot, and the fifth driving block is provided with a second protrusion for engaging in the second slot to limit the second supporting block; the third supporting block is provided with a third slot, and the fifth driving block is provided with a third protrusion for engaging in the third slot to limit the third supporting block; the fourth supporting block is provided with a fourth slot, and the fifth driving block is provided with a fourth protrusion for engaging in the fourth slot to limit the fourth supporting block.

[0011] Furthermore, in the above technical solution, the fifth drive block is connected to the tensioning cylinder by a fifth connecting bolt. The fifth drive block has a fifth through hole, and the fifth connecting bolt passes through the fifth through hole and is connected to the output end of the tensioning cylinder.

[0012] Furthermore, in the above technical solution, the tensioning structure includes an inclined tensioning member disposed on the fixture body, a first limiting block disposed on the fixture body for limiting the inclined tensioning member, an inclined driving member connected to the output end of the tensioning cylinder and driven by the tensioning cylinder to move up and down, and a second limiting block disposed on the fixture body for limiting the inclined driving member, wherein a tensioning protrusion for limiting the product is protruded on the fixture body.

[0013] Furthermore, in the above technical solution, the inclined support member is provided with a ninth inclined surface, and the inclined drive member is provided with a tenth inclined surface for abutting against the ninth inclined surface to push the inclined support member to move; the inclined support member is provided with a strip hole for cooperating with the first limiting block.

[0014] Furthermore, in the above technical solution, the inclined support member is provided with a fifth slot, and the inclined drive member protrudes to form a fifth protrusion for cooperating with the fifth slot to limit the inclined support member.

[0015] Furthermore, in the above technical solution, the inclined support member is connected to the tensioning cylinder by a sixth connecting bolt. The inclined support member has a sixth through hole, and the sixth connecting bolt passes through the sixth through hole and is connected to the output end of the tensioning cylinder. The inclined support member has a first inclined support portion and a second inclined support portion protruding and formed for abutting against the product to perform tensioning.

[0016] Furthermore, in the above technical solution, the clamp body is provided with a first pad and a second pad for supporting the clamp body.

[0017] After adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art: This utility model changes the traditional method of clamping products with screws, eliminating the need for manual screw tightening. Simply place the product into the receiving position, and the clamping structure is driven by a clamping cylinder to clamp the product for processing, significantly improving production efficiency and offering extremely convenient operation. It is suitable for widespread application in various CNC fixture structures. Furthermore, compared with existing structures, this utility model avoids the problem of easily stripped screws, effectively reducing clamping time, eliminating the need for manual positioning, effectively freeing up manpower, and greatly saving costs. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of Embodiment 1 of this utility model.

[0019] Figure 2 This is an exploded structural diagram of Embodiment 1 of this utility model.

[0020] Figure 3 This is a diagram of the support structure in Embodiment 1 of this utility model.

[0021] Figure 4 This is a three-dimensional structural diagram of Embodiment 2 of this utility model.

[0022] Figure 5 This is an exploded structural diagram of Embodiment 2 of this utility model.

[0023] Figure 6 This is a diagram of the support structure in Embodiment 2 of this utility model. Detailed Implementation

[0024] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0025] See Figures 1 to 6 As shown, a CNC fixture using a slider for clamping includes: a fixture body 1 for placing a product 10, several clamping structures 2 disposed on the fixture body 1 for clamping the product 10 for processing, and a clamping cylinder 3 disposed on the fixture body 1 and connected to each clamping structure 2 in a transmissive manner. The fixture body 1 is provided with several receiving positions 11 for accommodating the product 10, and the fixture body 1 is also provided with a work station hole 12 at each receiving position 11. The output end of the clamping cylinder 3 passes through the work station hole 12 and is connected to the clamping structure 2 to drive the clamping structure 2 to clamp the product 10.

[0026] This invention changes the traditional method of clamping products with screws, eliminating the need for manual screw tightening. The product 10 is simply placed into the receiving position 11, and the clamping cylinder 3 drives the clamping structure 2 to clamp the product 10 for processing. This significantly improves production efficiency and offers extremely convenient operation, making it suitable for widespread application in various CNC fixture structures. Furthermore, compared to existing structures, this invention avoids the problem of easily stripped screws, effectively reducing clamping time, eliminating the need for manual positioning, effectively freeing up manpower, and greatly saving costs.

[0027] In the first embodiment of this utility model, the tensioning structure 2 includes a first slide rail 21 fixedly disposed on the clamp body 1, a second slide rail 22 disposed on the clamp body 1, a third slide rail 23 disposed on the clamp body 1, a fourth slide rail 24 disposed on the clamp body 1, a first tensioning block 25 slidably disposed between the first slide rail 21 and the second slide rail 22, a second tensioning block 26 slidably disposed between the second slide rail 22 and the third slide rail 23, a third tensioning block 27 slidably disposed between the third slide rail 23 and the fourth slide rail 24, a fourth tensioning block 28 slidably disposed between the fourth slide rail 24 and the first slide rail 21, and a fifth drive block 29 connected to the output end of the tensioning cylinder 3 and driven by the tensioning cylinder 3 to lift and lower.

[0028] In Embodiment 1, the fifth drive block 29 is slid downward by the tensioning cylinder 3, which in turn pushes the first tensioning block 25, the second tensioning block 26, the third tensioning block 27, and the fourth tensioning block 28 outward to tighten the four inner edges of the product 10 within the receiving position 11, achieving a secure fit. This changes the traditional method of clamping the product with screws, eliminating the need for manual screw tightening. Furthermore, preferably, the clamp body 1 has a positioning protrusion 105 for positioning the product 10 at each receiving position 11.

[0029] The first support block 25 is provided with a first inclined surface 251, and the fifth drive block 29 is provided with a fifth inclined surface 291 for abutting against the first inclined surface 251 to push the first support block 25 to move; the second support block 26 is provided with a second inclined surface 252, and the fifth drive block 29 is provided with a sixth inclined surface 292 for abutting against the second inclined surface 252 to push the first support block 25 to move; the third support block 27 is provided with a third inclined surface 253, and the fifth drive block 29 is provided with a seventh inclined surface 293 for abutting against the third inclined surface 253 to push the third support block 27 to move; the fourth support block 28 is provided with a fourth inclined surface 254, and the fifth drive block 29 is provided with an eighth inclined surface 294 for abutting against the fourth inclined surface 254 to push the fourth support block 28 to move. Here, the fifth drive block 29 is connected to the output end of the tensioning cylinder 3 and moves vertically via the tensioning cylinder 3. When the tensioning cylinder 3 drives the fifth drive block 29 to descend, the fifth inclined surface 291 abuts against the first inclined surface 251 and drives the first tensioning block 25 to move laterally, thereby changing the direction of transmission. The second tensioning block 26, the third tensioning block 27, and the fourth tensioning block 28 work similarly, and will not be described in detail here. In this embodiment, the product is effectively tensioned by simultaneously driving four tensioning blocks with one tensioning cylinder 3, resulting in high clamping stability and simple operation.

[0030] The first tensioning block 25 has a first slot 255, and the fifth driving block 29 has a first protrusion 295 for engaging with the first slot 255 to limit the first tensioning block 25; the second tensioning block 26 has a second slot 256, and the fifth driving block 29 has a second protrusion 296 for engaging with the second slot 256 to limit the second tensioning block 26; the third tensioning block 27 has a third slot 257, and the fifth driving block 29 has a third protrusion 297 for engaging with the third slot 257 to limit the third tensioning block 27; the fourth tensioning block 28 has a fourth slot 258, and the fifth driving block 29 has a fourth protrusion 298 for engaging with the fourth slot 258 to limit the fourth tensioning block 28. In Embodiment 1, to prevent the first support block 25 from accidentally dislodging from between the first slide rail 21 and the second slide rail 22 when it moves laterally driven by the fifth drive block 29, a first locking protrusion 295 and a first locking groove 255 are used for limiting its movement. The cross-sectional shape of the first locking protrusion 295 is T-shaped, and the first locking groove 255 is also T-shaped, which effectively prevents the first support block 25 from sliding accidentally. Similarly, the second support block 26, the third support block 27, and the fourth support block 28 are described in the same way, and will not be elaborated further here.

[0031] The fifth drive block 29 is connected to the tensioning cylinder 3 via the fifth connecting bolt 5. The fifth drive block 29 has a fifth through hole 290, and the fifth connecting bolt 5 passes through the fifth through hole 290 and is connected to the output end of the tensioning cylinder 3.

[0032] In the second embodiment of this utility model, the tensioning structure 2 includes an inclined tensioning member 61 disposed on the clamp body 1, a first limiting block 62 disposed on the clamp body 1 and used to limit the inclined tensioning member 61, an inclined driving member 63 connected to the output end of the tensioning cylinder 3 and driven by the tensioning cylinder 3 to move up and down, and a second limiting block 64 disposed on the clamp body 1 and used to limit the inclined driving member 63. The clamp body 1 has a tensioning protrusion 16 protruding from it for limiting the product 10.

[0033] In Embodiment 2, the inclined drive member 63 is driven to slide downward by the tensioning cylinder 3 and push the inclined tensioning member 61 to move outward, so as to tighten the inner edge of the product 10 in the accommodating position 11 through the first inclined support 615 and the second inclined support 626, thereby achieving a fastening effect. This changes the traditional method of clamping the product with screws and eliminates the need to manually tighten the screws.

[0034] The inclined support member 61 is provided with a ninth inclined surface 611, and the inclined drive member 63 is provided with a tenth inclined surface 631 for abutting against the ninth inclined surface 611 to push the inclined support member 61 to move. The inclined support member 61 has a strip hole 616 for cooperating with the first limiting block 62. Here, the length of the strip hole 616 is greater than the length of the first limiting block 62, so that the inclined support member 61 can slide under the limitation of the first limiting block 62. In addition, the inclined drive member 63 is connected to the output end of the tensioning cylinder 3 and is driven by the tensioning cylinder 3 to move in the vertical direction. When the tensioning cylinder 3 drives the inclined drive member 63 to descend, the tenth inclined surface 631 abuts against the ninth inclined surface 611 and drives the inclined support member 61 to move in the lateral direction, thereby changing the direction of transmission and achieving high clamping stability.

[0035] The inclined support member 61 is provided with a fifth slot 612, and the inclined drive member 63 protrudes with a fifth protrusion 632 for cooperating with the fifth slot 612 to limit the inclined support member 61. In the second embodiment, in order to prevent the inclined support member 61 from accidentally dislodging when it is driven by the inclined drive member 63 to move laterally, the fifth protrusion 632 cooperates with the fifth slot 612 to limit it. The fifth protrusion 632 has a T-shaped cross-section, and the fifth slot 612 is also T-shaped, which can effectively prevent the first support block 25 from sliding accidentally.

[0036] The inclined support member 61 is connected to the tensioning cylinder 3 via a sixth connecting bolt 613. The inclined support member 61 has a sixth through hole 614, through which the sixth connecting bolt 613 passes and is connected to the output end of the tensioning cylinder 3. The inclined support member 61 has a first inclined support portion 615 and a second inclined support portion 626 protruding from it for abutting against the product 10 for tensioning.

[0037] The clamp body 1 is provided with a first foot 101 and a second foot 102 for supporting the clamp body 1.

[0038] In summary, this invention changes the traditional method of clamping products with screws. It eliminates the need for manual screw tightening; simply place the product 10 into the receiving position 11, and the clamping cylinder 3 drives the clamping structure 2 to clamp the product 10 for processing. This significantly improves production efficiency and offers extremely convenient operation, making it suitable for widespread application in various CNC fixture structures. Furthermore, compared to existing structures, this invention avoids the problem of easily stripped screws, effectively reducing clamping time, eliminating the need for manual positioning, effectively freeing up manpower, and greatly saving costs.

[0039] Of course, the above description is only a specific embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model should be included in the scope of the claims of the present utility model.

Claims

1. A CNC fixture using a slider for clamping, comprising: The fixture body (1) for placing the product (10), several clamping structures (2) disposed on the fixture body (1) for clamping the product (10) for processing, and clamping cylinders (3) disposed on the fixture body (1) and connected to each clamping structure (2) in a throttle manner. Its features are, The fixture body (1) is provided with several accommodating positions (11) for accommodating the product (10), and the fixture body (1) is also provided with a work station hole (12) at each accommodating position (11). The output end of the tensioning cylinder (3) passes through the work station hole (12) and is connected to the tensioning structure (2) to drive the tensioning structure (2) to tension the product (10).

2. The CNC fixture using a slider for clamping according to claim 1, characterized in that: The tensioning structure (2) includes a first slide rail (21) fixedly disposed on the clamp body (1), a second slide rail (22) disposed on the clamp body (1), a third slide rail (23) disposed on the clamp body (1), a fourth slide rail (24) disposed on the clamp body (1), a first tensioning block (25) slidably disposed between the first slide rail (21) and the second slide rail (22), a second tensioning block (26) slidably disposed between the second slide rail (22) and the third slide rail (23), a third tensioning block (27) slidably disposed between the third slide rail (23) and the fourth slide rail (24), a fourth tensioning block (28) slidably disposed between the fourth slide rail (24) and the first slide rail (21), and a fifth drive block (29) connected to the output end of the tensioning cylinder (3) and driven by the tensioning cylinder (3) to lift and lower.

3. A CNC fixture using a slider for clamping according to claim 2, characterized in that: The first support block (25) is provided with a first inclined surface (251), and the fifth drive block (29) is provided with a fifth inclined surface (291) for abutting against the first inclined surface (251) to push the first support block (25) to move; the second support block (26) is provided with a second inclined surface (252), and the fifth drive block (29) is provided with a sixth inclined surface (292) for abutting against the second inclined surface (252) to push the first support block (25) to move; the third support block (27) is provided with a third inclined surface (253), and the fifth drive block (29) is provided with a seventh inclined surface (293) for abutting against the third inclined surface (253) to push the third support block (27) to move; the fourth support block (28) is provided with a fourth inclined surface (254), and the fifth drive block (29) is provided with an eighth inclined surface (294) for abutting against the fourth inclined surface (254) to push the fourth support block (28) to move.

4. A CNC fixture using a slider for clamping according to claim 2, characterized in that: The first support block (25) has a first slot (255), and the fifth drive block (29) has a first protrusion (295) for engaging with the first slot (255) to limit the first support block (25); the second support block (26) has a second slot (256), and the fifth drive block (29) has a second protrusion (296) for engaging with the second slot (256) to limit the second support block (26). The third support block (27) has a third slot (257), and the fifth drive block (29) has a third protrusion (297) for engaging in the third slot (257) to limit the third support block (27); the fourth support block (28) has a fourth slot (258), and the fifth drive block (29) has a fourth protrusion (298) for engaging in the fourth slot (258) to limit the fourth support block (28).

5. A CNC fixture using a slider for clamping according to claim 4, characterized in that: The fifth drive block (29) is connected to the tensioning cylinder (3) via the fifth connecting bolt (5). The fifth drive block (29) has a fifth through hole (290), and the fifth connecting bolt (5) passes through the fifth through hole (290) and is connected to the output end of the tensioning cylinder (3).

6. A CNC fixture using a slider for clamping according to claim 1, characterized in that: The tensioning structure (2) includes an inclined tensioning member (61) disposed on the clamp body (1), a first limiting block (62) disposed on the clamp body (1) and used to limit the inclined tensioning member (61), an inclined driving member (63) connected to the output end of the tensioning cylinder (3) and driven by the tensioning cylinder (3) to lift and lower, and a second limiting block (64) disposed on the clamp body (1) and used to limit the inclined driving member (63). The clamp body (1) has a tensioning protrusion (16) protruding out to limit the product (10).

7. A CNC fixture using a slider for clamping according to claim 6, characterized in that: The inclined support member (61) is provided with a ninth inclined surface (611), and the inclined drive member (63) is provided with a tenth inclined surface (631) for abutting against the ninth inclined surface (611) to push the inclined support member (61) to move; the inclined support member (61) is provided with a strip hole (616) for cooperating with the first limiting block (62).

8. A CNC fixture using a slider for clamping according to claim 6, characterized in that: The inclined support member (61) is provided with a fifth slot (612), and the inclined drive member (63) is formed with a fifth protrusion (632) for cooperating with the fifth slot (612) to limit the inclined support member (61).

9. A CNC fixture using a slider for clamping according to any one of claims 6-8, characterized in that: The inclined support member (61) is connected to the tensioning cylinder (3) by a sixth connecting bolt (613). The inclined support member (61) has a sixth through hole (614), and the sixth connecting bolt (613) passes through the sixth through hole (614) and is connected to the output end of the tensioning cylinder (3). The inclined support member (61) has a first inclined support part (615) and a second inclined support part (626) protruding on it for abutting against the product (10) for tensioning.

10. A CNC fixture using a slider for clamping according to claim 1, characterized in that: The clamp body (1) is provided with a first foot (101) and a second foot (102) for supporting the clamp body (1).

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