A three-axis CNC automatic rotary machining fixture

Abstract

The utility model discloses a three -axis CNC automatic rotation processing clamp, it includes: the backing plate is set up on the CNC workstation, first support and second support, it sets up on the backing plate, clamping mechanism, it sets up in rotatable mode in first support and second support, and a plurality of clamping positions for clamping product are provided on clamping mechanism, drive mechanism, it sets up on the backing plate and is used to drive clamping mechanism to rotate, in the utility model, clamping mechanism positions product through clamping position, and drive mechanism drives clamping mechanism to rotate to drive product to rotate to corresponding angle to process product, for the product needing multi -surface processing, also can realize processing, can complete all processes of one -off processing to improve productivity greatly. In addition, the utility model does not need to rotate product through manual, effectively liberates manual resources, and the operation is convenient, and the use convenience is very high, and the CNC processing automation degree has been greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of tooling and fixture technology, and specifically to a three-axis CNC automatic rotary machining fixture. Background Technology

[0002] With the continuous development of industrial automation technology, CNC machining is being used more and more widely. While developing rapidly, people are also demanding higher and higher production speed and efficiency.

[0003] In the past, CNC machining often relied on clamping with a top clamp. However, clamping with a top clamp has the following drawbacks: 1. Long clamping time; 2. Small quantity clamped at a time; 3. Requires manual rotation; 4. Frequent operation, prone to errors; 5. Some CNC machining requires two clamping operations, resulting in low efficiency. Later, various fixtures emerged to replace top clamping. Generally, machining center fixtures are categorized by clamping method as follows: conformal fixtures, manual fixtures, pneumatic fixtures, hydraulic fixtures, magnetic fixtures, electric fixtures, and vacuum fixtures.

[0004] Currently available CNC clamping fixtures can replace bit clamping. For example, Chinese utility model patent application CN206047674U discloses a CNC slider machining clamping fixture, which includes a base and a boss disposed on the base. The boss is located in the middle of the base and is perpendicular to the base. At least one locking structure is provided on the boss or the base for fixing the slider to be machined to the CNC slider machining clamping fixture. This CNC slider machining clamping fixture replaces bit clamping, improving machining efficiency.

[0005] However, this existing CNC slider machining clamping fixture fixes the slider to be processed on the CNC slider machining clamping fixture through a locking structure, but it cannot automatically drive the product to rotate and adjust the angle, making it only suitable for single-sided processing products. For products that need to be processed on multiple sides, the product can only be rotated manually, or it cannot be processed at all.

[0006] In view of the above, the inventors propose the following technical solution. Summary of the Invention

[0007] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a three-axis CNC automatic rotary machining fixture.

[0008] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a three-axis CNC automatic rotary machining fixture, comprising: a pad plate disposed on a CNC worktable; a first support and a second support disposed on the pad plate; a clamping mechanism rotatably disposed on the first support and the second support, and the clamping mechanism having multiple clamping positions for clamping products; and a driving mechanism disposed on the pad plate and used to drive the clamping mechanism to rotate; the driving mechanism includes a slide disposed on the pad plate and located between the first support and the second support, a synchronous rack movably disposed on the slide plate, and a synchronous rack mounted on the first support and the second support for driving the synchronous rack to rotate. The device includes a drive cylinder for sliding the synchronous rack and a connecting rod that is transmissively disposed between the synchronous rack and the drive cylinder; the clamping mechanism includes a first clamping mounting plate, a second clamping mounting plate distributed parallel to the first clamping mounting plate, a third clamping mounting plate connected between the first clamping mounting plate and the second clamping mounting plate, a first interchangeable clamp disposed on the first clamping mounting plate for clamping the product, a second interchangeable clamp disposed on the second clamping mounting plate for clamping the product, a third interchangeable clamp disposed on the third clamping mounting plate for clamping the product, a rotating shaft disposed between the first clamping mounting plate and the second clamping mounting plate, and a synchronous gear sleeved on the rotating shaft and meshing with the synchronous rack.

[0009] Furthermore, in the above technical solution, the slide block is provided with a first slide rail, and the lower end of the synchronous rack is provided with a first slide groove that matches the first slide rail.

[0010] Furthermore, in the above technical solution, the first bracket has a first through hole, and the second bracket has a second through hole. The first clamp mounting plate is located outside the first bracket and has a first slot that matches the first through hole. The second clamp mounting plate is located outside the second bracket and has a second slot that matches the second through hole. The two ends of the rotating shaft pass through the first through hole and the second through hole respectively and are inserted into the first slot and the second slot respectively.

[0011] Furthermore, in the above technical solution, the first interchangeable fixture has four clamping positions, each clamping position is provided with a third screw hole, the product is provided with a connecting hole that matches the third screw hole, and the product is installed in the clamping position by a third screw, wherein the third screw passes through the connecting hole and is screwed into the third screw hole.

[0012] Furthermore, in the above technical solution, the product has two positioning slots, and correspondingly, each clamping position has two positioning holes.

[0013] Furthermore, in the above technical solution, the first bracket is installed on the pad by a first screw, wherein the pad has a first through hole for the first screw to pass through, and the lower end of the first bracket has a first screw hole for the installation of the first screw; the second bracket is installed on the pad by a second screw, wherein the pad has a second through hole for the second screw to pass through, and the lower end of the second bracket has a second screw hole for the installation of the second screw.

[0014] Furthermore, in the above technical solution, the upper end of the first bracket is formed with a first clearance arc surface that facilitates the rotation of the clamping mechanism, and the upper end of the second bracket is formed with a second clearance arc surface that facilitates the rotation of the clamping mechanism.

[0015] Furthermore, in the above technical solution, the drive cylinder is installed between the first bracket and the second bracket by a fifth screw and a sixth screw respectively. The first bracket has a fifth screw hole on one side, and the drive cylinder has a fifth through hole. The fifth screw passes through the fifth through hole and is installed in the fifth screw hole. The second bracket has a sixth screw hole on one side, and the drive cylinder has a sixth through hole. The sixth screw passes through the sixth through hole and is installed in the sixth screw hole.

[0016] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art: In this invention, the clamping mechanism positions the product at the clamping position, and the driving mechanism drives the clamping mechanism to rotate, thereby rotating the product to the corresponding angle for processing. This allows for the processing of products requiring multi-faceted machining, completing all processes in one operation and significantly improving productivity. Furthermore, compared to existing structures, this invention eliminates the need for manual product rotation, effectively freeing up manpower. It is easy to operate and highly convenient to use, greatly enhancing the automation level of CNC machining. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a schematic diagram of the usage state of this utility model.

[0019] Figure 3 This is an exploded structural diagram of the present invention.

[0020] Figure 4 This is a schematic diagram of the clamping mechanism in this utility model.

[0021] Figure 5 This is a schematic diagram of the drive mechanism in this utility model.

[0022] Figure 6This is a structural schematic diagram of the product in this utility model.

[0023] Figure 7 This is a schematic diagram of the assembly of the first and second brackets with the pad in 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 7 As shown, a three-axis CNC automatic rotary machining fixture includes: a pad 1, which is disposed on a CNC worktable; a first support 2 and a second support 3, which are disposed on the pad 1; a clamping mechanism 4, which is rotatably disposed on the first support 2 and the second support 3, and the clamping mechanism 4 is provided with a plurality of clamping positions 40 for clamping products 10; and a drive mechanism 5, which is disposed on the pad 1 and is used to drive the clamping mechanism 4 to rotate. The drive mechanism 5 includes a slide 51 disposed on the pad 1 and located between the first support 2 and the second support 3, a synchronous rack 52 disposed on the slide 51 in a reciprocating manner, a drive cylinder 53 mounted on the first support 2 and the second support 3 and used to drive the synchronous rack 52 to slide, and a transmission device. A connecting rod 54 is placed between the synchronous rack 52 and the drive cylinder 53; the clamping mechanism 4 includes a first clamping mounting plate 41, a second clamping mounting plate 42 distributed parallel to the first clamping mounting plate 41, a third clamping mounting plate 43 connected between the first clamping mounting plate 41 and the second clamping mounting plate 42, a first interchangeable clamp 44 disposed on the first clamping mounting plate 41 and used for clamping the product 10, a second interchangeable clamp 45 disposed on the second clamping mounting plate 42 and used for clamping the product 10, a third interchangeable clamp 48 disposed on the third clamping mounting plate 43 and used for clamping the product 10, a rotating shaft 46 disposed between the first clamping mounting plate 41 and the second clamping mounting plate 42, and a synchronous gear 47 sleeved on the rotating shaft 46 and meshing with the synchronous rack 52. In this invention, the clamping mechanism 4 positions the product via the clamping position 40, and the driving mechanism 5 drives the clamping mechanism 4 to rotate, thereby rotating the product 10 to the corresponding angle for processing. This also enables the processing of products 10 requiring multi-faceted machining, completing all processes in one operation and significantly improving productivity. Furthermore, compared to existing structures, this invention eliminates the need for manual rotation of the product 10, effectively freeing up manpower. It is easy to operate, highly convenient to use, and significantly enhances the automation level of CNC machining.

[0026] In the drive mechanism 5, one end of the link 54 is connected to the output shaft of the drive cylinder 53, the other end of the link 54 is connected to the synchronous rack 52, and the drive cylinder 53 can drive the synchronous rack 52 to move back and forth; the first jig mounting plate 41, the second jig mounting plate 42 and the third jig mounting plate 43 are combined into a "several" shape, and products 10 can be clamped on all three sides to maximize space utilization, so that the maximum number of products 10 can be clamped in a single time. Preferably, four clamping positions 40 are provided on the first interchangeable jig 44, which can carry 12 products for processing at the same time in a single operation.

[0027] Preferably, the sliding seat 51 is provided with a first sliding rail 515, and the lower end of the synchronous rack 52 is provided with a first sliding groove 525 matched with the first sliding rail 515. Here, the first sliding groove 525 cooperates with the first sliding rail 515 to make the synchronous rack 52 move more stably during the moving process.

[0028] Preferably, a first through hole 21 is opened on the first bracket 2, and a second through hole 31 is opened on the second bracket 3. The first jig mounting plate 41 is located outside the first bracket 2, and a first slot 411 matched with the first through hole 21 is opened on the first jig mounting plate 41. The second jig mounting plate 42 is located outside the second bracket 3, and a second slot 421 matched with the second through hole 31 is opened on the second jig mounting plate 42; two ends of the rotating shaft 46 pass through the first through hole 21 and the second through hole 31 respectively and are inserted into the first slot 411 and the second slot 421 respectively.

[0029] Four clamping positions 40 are distributed on the first interchangeable jig 44, a third screw hole 401 is provided in each clamping position 40, the product 10 is provided with a connecting hole 101 matched with the third screw hole 401, and the product 10 is installed in the clamping position 40 through a third screw 7, wherein the third screw 7 passes through the connecting hole 101 and is spirally installed in the third screw hole 401. Here, four clamping positions 40 are provided on the first interchangeable jig 44, which can carry 12 products 10 for processing at the same time in a single operation; meanwhile, in order to ensure the stability of the product 10 during processing, the product 10 is specially positioned by the third screw 7 to prevent the product 10 from accidentally sliding out, which improves the processing quality. In addition, the structures of the second interchangeable jig 45 and the third interchangeable jig 48 are basically the same as that of the first interchangeable jig 44, which can be implemented with reference to the first interchangeable jig 44, and will not be described in detail one by one here.

[0030] Two positioning grooves 104 are opened on the product 10, and correspondingly, two positioning holes 441 are provided on each clamping position 40.

[0031] The first bracket 2 is mounted on the pad 1 by a first screw 61, wherein the pad 1 has a first through hole 110 for the first screw 61 to pass through, and the lower end of the first bracket 2 has a first screw hole 210 for the first screw 61 to be installed; the second bracket 3 is mounted on the pad 1 by a second screw 62, wherein the pad 1 has a second through hole 120 for the second screw 62 to pass through, and the lower end of the second bracket 3 has a second screw hole 320 for the second screw 62 to be installed.

[0032] The upper end of the first bracket 2 is formed with a first clearance arc surface 230 to facilitate the rotation of the clamping mechanism 4, and the upper end of the second bracket 3 is formed with a second clearance arc surface 330 to facilitate the rotation of the clamping mechanism 4. Here, when the clamping mechanism 4 rotates, it swings at 90°. Therefore, the upper ends of the first bracket 2 and the second bracket 3 need to be provided with the first clearance arc surface 230 and the second clearance arc surface 330, respectively, to facilitate the rotation of the clamping mechanism 4.

[0033] The drive cylinder 53 is installed between the first bracket 2 and the second bracket 3 by the fifth screw 8 and the sixth screw 9 respectively. The first bracket 2 has a fifth screw hole 71 on one side and a fifth through hole 531 on the drive cylinder 53. The fifth screw 8 passes through the fifth through hole 531 and is installed in the fifth screw hole 71. The second bracket 3 has a sixth screw hole 81 on one side and a sixth through hole 532 on the drive cylinder 53. The sixth screw 9 passes through the sixth through hole 532 and is installed in the sixth screw hole 81.

[0034] The method of using this utility model is as follows: After fixing the pad 1 on the CNC worktable, place 12 products 10 into the corresponding interchangeable fixtures. Then, the CNC machine the first side of the product 10. After the first side is machined, the drive mechanism 5 pushes the synchronous rack 52 forward through the drive cylinder 53. The synchronous rack 52 drives the synchronous gear 47 and the rotating shaft 46 to rotate, thereby driving the first fixture mounting plate 41 and the second fixture mounting plate 42 to rotate, and causing the third fixture mounting plate 43 to swing 90° to machine the second side of the product 10. After the machining is completed, the drive cylinder 53 drives the synchronous rack 52 to move back to its original position to facilitate the machining of the next set of products.

[0035] In summary, in this invention, the clamping mechanism 4 positions the product through the clamping position 40, and the driving mechanism 5 drives the clamping mechanism 4 to rotate, thereby rotating the product 10 to the corresponding angle for processing. This allows for the processing of products 10 requiring multi-faceted machining, enabling the completion of all processes in one operation, thus significantly improving productivity. Furthermore, compared to existing structures, this invention eliminates the need for manual rotation of the product 10, effectively freeing up manpower. It is easy to operate, highly convenient to use, and significantly enhances the automation level of CNC machining.

[0036] 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 three-axis CNC automatic rotary machining fixture, comprising: A pad (1) is placed on the CNC worktable; The first bracket (2) and the second bracket (3) are mounted on the pad (1); Its features are, It also includes: a clamping mechanism (4), which is rotatably disposed on the first bracket (2) and the second bracket (3), and the clamping mechanism (4) is provided with a plurality of clamping positions (40) for clamping the product (10); A drive mechanism (5) is mounted on a pad (1) and is used to drive the clamping mechanism (4) to rotate; The drive mechanism (5) includes a slide (51) disposed on the pad (1) and located between the first bracket (2) and the second bracket (3), a synchronous rack (52) disposed on the slide (51) in a reciprocating manner, a drive cylinder (53) mounted on the first bracket (2) and the second bracket (3) for driving the synchronous rack (52) to slide, and a connecting rod (54) disposed between the synchronous rack (52) and the drive cylinder (53) for transmission. The clamping mechanism (4) includes a first clamping mounting plate (41), a second clamping mounting plate (42) distributed parallel to the first clamping mounting plate (41), a third clamping mounting plate (43) connected between the first clamping mounting plate (41) and the second clamping mounting plate (42), a first interchangeable clamp (44) disposed on the first clamping mounting plate (41) and used for clamping the product (10), a second interchangeable clamp (45) disposed on the second clamping mounting plate (42) and used for clamping the product (10), a third interchangeable clamp (48) disposed on the third clamping mounting plate (43) and used for clamping the product (10), a rotating shaft (46) disposed between the first clamping mounting plate (41) and the second clamping mounting plate (42), and a synchronous gear (47) sleeved on the rotating shaft (46) and meshing with the synchronous rack (52).

2. The three-axis CNC automatic rotary machining fixture according to claim 1, characterized in that: The slide block (51) is provided with a first slide rail (515), and the lower end of the synchronous rack (52) is provided with a first slide groove (525) that matches the first slide rail (515).

3. A three-axis CNC automatic rotary machining fixture according to claim 2, characterized in that: The first bracket (2) has a first through hole (21), and the second bracket (3) has a second through hole (31). The first clamp mounting plate (41) is located outside the first bracket (2), and the first clamp mounting plate (41) has a first slot (411) that matches the first through hole (21). The second clamp mounting plate (42) is located outside the second bracket (3), and the second clamp mounting plate (42) has a second slot (421) that matches the second through hole (31). The two ends of the rotating shaft (46) pass through the first through hole (21) and the second through hole (31) respectively and are inserted into the first slot (411) and the second slot (421) respectively.

4. A three-axis CNC automatic rotary machining fixture according to claim 1, characterized in that: The first interchangeable fixture (44) has four clamping positions (40), each clamping position (40) is provided with a third screw hole (401), the product (10) is provided with a connecting hole (101) that matches the third screw hole (401), the product (10) is installed in the clamping position (40) by a third screw (7), wherein the third screw (7) passes through the connecting hole (101) and is screwed into the third screw hole (401).

5. A three-axis CNC automatic rotary machining fixture according to claim 4, characterized in that: The product (10) has two positioning grooves (104), and correspondingly, each clamping position (40) has two positioning holes (441).

6. A three-axis CNC automatic rotary machining fixture according to claim 1, characterized in that: The first bracket (2) is mounted on the pad (1) by the first screw (61), wherein the pad (1) has a first through hole (110) for the first screw (61) to pass through, and the lower end of the first bracket (2) has a first screw hole (210) for the first screw (61) to be installed; the second bracket (3) is mounted on the pad (1) by the second screw (62), wherein the pad (1) has a second through hole (120) for the second screw (62) to pass through, and the lower end of the second bracket (3) has a second screw hole (320) for the second screw (62) to be installed.

7. A three-axis CNC automatic rotary machining fixture according to any one of claims 1-6, characterized in that: The first bracket (2) has a first clearance arc surface (230) formed at the upper end to facilitate the rotation of the clamping mechanism (4), and the second bracket (3) has a second clearance arc surface (330) formed at the upper end to facilitate the rotation of the clamping mechanism (4).

8. A three-axis CNC automatic rotary machining fixture according to claim 1, characterized in that: The drive cylinder (53) is installed between the first bracket (2) and the second bracket (3) by the fifth screw (8) and the sixth screw (9) respectively. The first bracket (2) has a fifth screw hole (71) on one side and a fifth through hole (531) on the drive cylinder (53). The fifth screw (8) passes through the fifth through hole (531) and is installed in the fifth screw hole (71). The second bracket (3) has a sixth screw hole (81) on one side and a sixth through hole (532) on the drive cylinder (53). The sixth screw (9) passes through the sixth through hole (532) and is installed in the sixth screw hole (81).

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