Workpiece locking mechanism

Abstract

The utility model relates to the technical field of workpiece machining, and discloses a workpiece locking mechanism which comprises a rotating base, a lifting assembly is arranged at the position, located in a sliding hole, of the rotating base, a limiting assembly is arranged in a limiting hole, and a locking positioning assembly is arranged at the position, close to an outer ring, of the top side of the rotating base. A connecting assembly is arranged on the top side of the rotating base, and a working table top is fixedly installed on the top of the locking and positioning assembly. After the screw rotates to make contact with the wall bottom, the lantern ring is driven to move upwards, so that the extrusion rod is driven to deflect through the rotating plate, the sliding rod and the belleville spring are extruded, the pressing plate is made to be away from the containing chamber, and at the moment, the workpiece can be taken out or placed in the containing chamber; at the moment, under the action of the belleville spring, the pressing plate can be driven to lock and position the workpiece in the containing chamber, so that the workpiece can be locked to facilitate machining, and a plurality of workpieces can be machined at a time.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece processing, in particular to a workpiece locking mechanism. Background Art

[0002] A workpiece refers to a product component in the manufacturing process. During the processing of the workpiece, in order to ensure that the workpiece occupies a consistent and correct processing position during processing, the workpiece needs to be locked and positioned, that is, to make the workpiece occupy the correct position in the machine tool or fixture.

[0003] For example, the machining center workpiece positioning mechanism disclosed in the Chinese patent with publication number CN220839869U includes a positioning table, the upper surface of the positioning table is provided with four evenly distributed guide slots, the inside of the guide slots are all slidably provided with sliding seats, the left and right sides of the lower surface of the positioning table are provided with mounting plates, the middle part of the upper surface of the sliding seat is provided with support columns, the upper ends of the outer arc surfaces of the support columns are all fixedly sleeved with arc plates, the middle part of the upper surface of the positioning table is provided with a placement seat, and the positioning table is also provided with an electric drive module for driving the sliding seat to move. Through the machining center workpiece positioning mechanism described in the utility model, the slider can be driven by the connecting rod to quickly and stably clamp the aluminum alloy workpieces of different shapes on the placement seat quickly and stably.

[0004] In the process of implementing this application, the inventor discovered that there are at least the following problems in this technology: although the above technical solution can quickly clamp and position the workpiece located in the center, it can only clamp one workpiece at a time. In actual operation, in order to improve efficiency, some workpieces need to be processed together. Therefore, further improvements can be made. Utility Model Content

[0005] To solve the above-mentioned problems, the utility model provides the following technical solutions: a workpiece locking mechanism, comprising a rotating base, a sliding hole is opened at the inner center of the rotating base, a lifting assembly is arranged on the rotating base inside the sliding hole, six groups of limiting holes are opened inside the rotating base and around the sliding hole array, a limiting assembly for limiting the rotation of the lifting assembly is arranged in the limiting holes, a locking and positioning assembly is arranged on the top side of the rotating base near the outer ring, a connecting assembly is arranged on the top side of the rotating base and between the lifting assembly and the locking and positioning assembly, a processing part is arranged on the outer side of the locking and positioning assembly, and a work table is fixedly installed on the top of the locking and positioning assembly.

[0006] As an optimization, the lifting assembly includes a threaded sleeve slidably inserted in a sliding hole, a ring is fixedly installed on the outer side of the middle part of the threaded sleeve, six groups of slots are arranged in an array on the bottom side of the ring, and a screw is inserted into the internal thread of the threaded sleeve.

[0007] As an optimization, the limiting assembly includes a compression spring fixedly mounted on the bottom wall of the limiting hole, a slide cylinder is slidably connected inside the limiting hole, and the top of the compression spring is fixedly mounted in the top wall of the compression spring, and a clamping block is fixedly mounted on the top of the slide cylinder.

[0008] As an optimization, the slide is located directly below the slot, and the card block is correspondingly inserted in the corresponding slot. The elastic force of the compression spring itself will make the slide always have an upward trend, and then drive the card block to be inserted into the slot, so it will limit the ring, so that when the screw is turned inside the threaded sleeve, the threaded sleeve will not rotate with it, so that the screw can move up and down while rotating.

[0009] The cam is provided with a plurality of springs, each of which is provided with a plurality of springs, and the plurality of springs are connected to each other with a plurality of springs, and the plurality of springs are connected to each other with a plurality of springs.

[0010] As an optimization, the connecting assembly includes a support fixedly mounted on the top side of the rotating base, a rotating plate is rotatably connected inside the support, a support plate is fixedly mounted on the top side of one end of the rotating plate close to the support, and an extrusion rod is fixedly mounted inside the end of the support plate.

[0011] As an optimization, the end of the rotating plate close to the center abuts against the top side of the ring, and one end of the extrusion rod abuts against one end of the sliding rod. When the screw is turned downward to abut against the bottom wall of the sliding hole, the threaded sleeve will move upward relative to the screw, and then the rotating plate will be driven to deflect upward through the ring, so that the extrusion rod will approach and squeeze the sliding rod, so that the other end of the sliding rod drives the pressure plate away from the workpiece, so that the workpiece can be taken out after processing, which is convenient and quick.

[0012] The beneficial effects of the utility model are:

[0013] The workpiece locking mechanism, through the limiting action of the limiting component on the sleeve, will limit the rotation of the threaded sleeve, and then will make the screw rise and fall while rotating, and as the screw contacts the bottom of the wall, it will drive the sleeve to move upward, so it will drive the extrusion rod to deflect through the rotating plate, and then will squeeze the slide rod and the butterfly spring, so that the pressure plate will be away from the accommodating chamber, and the workpiece can be taken out or placed in the accommodating chamber at this time. Similarly, after rotating the screw in the opposite direction, the extrusion rod will no longer squeeze the slide rod. At this time, under the action of the butterfly spring, it will drive the pressure plate to lock and position the workpiece in the accommodating chamber, so that the workpiece can be locked for convenient processing, and multiple workpieces can be processed at one time, thereby improving processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the locking and positioning structure of the utility model;

[0016] Figure 3 It is a front cutaway schematic diagram of the structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the coordination between the lifting assembly and the limiting assembly of the utility model;

[0018] Figure 5 It is a schematic diagram of the locking and positioning assembly and the connecting assembly of the utility model.

[0019] In the figure: 1. rotating base; 2. lifting assembly; 3. locking and positioning assembly; 4. connecting assembly; 5. processing part; 6. working table; 7. threaded sleeve; 8. collar; 9. slot; 10. screw; 11. compression spring; 12. slide cylinder; 13. block; 14. positioning seat; 15. slide rod; 16. fixing ring; 17. butterfly spring; 18. pressure plate; 19. spring pin; 20. support; 21. rotating plate; 22. support plate; 23. extrusion rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-2A workpiece locking mechanism comprises a rotating base 1, a sliding hole is opened at the inner center of the rotating base 1, a lifting component 2 is arranged inside the sliding hole of the rotating base 1, six groups of limiting holes are opened inside the rotating base 1 and around the sliding hole array, and a limiting component for limiting the rotation of the lifting component 2 is arranged in the limiting holes, a locking and positioning component 3 is arranged on the top side of the rotating base 1 near the outer ring, a connecting component 4 is arranged on the top side of the rotating base 1 and between the lifting component 2 and the locking and positioning component 3, a processing part 5 is arranged inside the outer side of the locking and positioning component 3, and a work table 6 is fixedly installed on the top of the locking and positioning component 3.

[0022] See also Figure 3-4 The lifting assembly 2 includes a threaded sleeve 7 slidably inserted in the sliding hole, a collar 8 is fixedly installed on the outer side of the middle part of the threaded sleeve 7, and six groups of card grooves 9 are arranged in the bottom array of the collar 8. The internal thread of the threaded sleeve 7 is inserted with a screw 10, and the limiting assembly includes a compression spring 11 fixedly installed on the bottom wall of the limiting hole, and a slide cylinder 12 is slidably connected inside the limiting hole. The slide cylinder 12 is located directly below the card groove 9, and the top of the compression spring 11 is fixedly installed in the top wall of the slide cylinder 12, and a card block 13 is fixedly installed on the top of the slide cylinder 12. The card block 13 is correspondingly inserted in the corresponding card groove 9. The elastic force of the compression spring 11 itself will make the slide cylinder 12 always have an upward trend, and then drive the card block 13 to be inserted into the card groove 9, so it will limit the collar 8, so that when the screw 10 is turned inside the threaded sleeve 7, the threaded sleeve 7 will not rotate with it, so that the screw 10 can move up and down while rotating.

[0023] See also Figure 5 The locking and positioning assembly 3 includes a positioning seat 14 fixedly mounted on the top side of the rotating base 1 near the outer ring, and a receiving chamber is opened on the outer side of the positioning seat 14, and the workpiece 5 is located in the receiving chamber. A slide rod 15 is slidably inserted inside the positioning seat 14, and a fixing ring 16 is fixedly mounted on the outer side of one end of the slide rod 15 near the center, and a butterfly spring 17 is fixedly mounted between the fixing ring 16 and the positioning seat 14, and the butterfly spring 17 is sleeved on the outer side of the slide rod 15, and a pressure plate 18 is sleeved on the outer side of one end of the slide rod 15 located in the receiving chamber, and the pressure plate 18 is slidably connected in the receiving chamber, and the side of the pressure plate 18 facing the receiving chamber has two "V"-shaped angles, and a spring pin 19 is arranged in the end of the slide rod 15, and the spring pin 19 is against the outer side of the pressure plate 18, and the butterfly spring 17 itself The elastic force will drive the pressure plate 18 to move into the receiving chamber, so it will squeeze the workpieces 5 on both sides, and then the "V"-shaped angle can squeeze and hold the workpiece 5, so that the locking and positioning of the workpiece 5 can be completed;

[0024] See also Figure 5The connecting assembly 4 includes a support 20 fixedly mounted on the top side of the rotating base 1, and a rotating plate 21 is rotatably connected in the support 20. One end of the rotating plate 21 close to the center abuts against the top side of the collar 8. A support plate 22 is fixedly mounted on the top side of one end of the rotating plate 21 close to the support 20, and an extrusion rod 23 is fixedly mounted in the end of the support plate 22. One end of the extrusion rod 23 abuts against one end of the slide rod 15. When the screw 10 is turned downward to abut against the bottom wall of the slide hole, the threaded sleeve 7 will move upward relative to the screw 10, and then the rotating plate 21 will be driven upward through the collar 8 to deflect, so that the extrusion rod 23 will approach and squeeze the slide rod 15, so that the other end of the slide rod 15 drives the pressing plate 18 away from the workpiece 5, so that the workpiece 5 after processing can be taken out conveniently and quickly.

[0025] When in use, the block 13 will be clamped upward into the clamping groove 9 under the action of the elastic force of the compression spring 11, and then the collar 8 will be limited to restrict the rotation of the threaded sleeve 7. Therefore, when the screw rod 10 is turned, the screw rod 10 can be lifted and lowered while rotating. When the screw rod 10 touches the bottom wall of the sliding hole downward, the screw rod 10 cannot continue to move downward, so the threaded sleeve 7 will move upward relative to the screw rod 10, and then the rotating plate 21 will be driven to deflect upward through the collar 8, so that the extrusion rod 23 will be driven to deflect and extrude the end of the slide rod 15, and at the same time, the butterfly spring 17 will be compressed, so that the other end of the slide rod 15 will drive the pressing plate 18 to move out of the accommodation chamber, and the workpiece can be placed in the accommodation chamber at this time;

[0026] Then, the screw rod 10 is turned in the opposite direction. Similarly, the collar 8 is reset downward, and the butterfly spring 17 is no longer compressed. At this time, the butterfly spring 17 drives the pressing plate 18 to reset and move into the accommodation chamber, and squeezes the outside of the workpiece, thereby locking and positioning the workpiece. After that, the workpiece can be processed, and multiple workpieces can be locked and processed at one time.

[0027] Similarly, when the workpiece needs to be taken out after processing, it is only necessary to turn the screw 10 clockwise, which facilitates the workpiece to be taken out.

[0028] To sum up, the workpiece locking mechanism, through the limiting effect of the limiting component on the collar 8, will limit the rotation of the threaded sleeve 7, and then the screw 10 will rotate and rise and fall, and as the screw 10 contacts the bottom of the wall, it will drive the collar 8 to move upward, so it will drive the extrusion rod 23 to deflect through the rotating plate 21, and then squeeze the slide bar 15 and the butterfly spring 17, so that the pressure plate 18 will be away from the accommodating chamber, and the workpiece can be taken out or placed in the accommodating chamber. By the same token, after rotating the screw 10 in the opposite direction, the extrusion rod 23 will no longer squeeze the slide bar 15. At this time, under the action of the butterfly spring 17, the pressure plate 18 will be driven to lock and position the workpiece in the accommodating chamber, so that the workpiece can be locked for convenient processing, and multiple workpieces can be processed at one time, thereby improving processing efficiency.

[0029] In the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", and "fix" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The standard parts used in the utility model can all be purchased from the market, and the special-shaped parts can all be customized according to the description and the drawings.

[0031] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A workpiece locking mechanism, comprising a rotating base (1), characterized in that: A sliding hole is provided at the inner center of the rotating base (1); a lifting assembly (2) is arranged inside the sliding hole of the rotating base (1); six groups of limiting holes are provided inside the rotating base (1) and around the sliding hole array; a limiting assembly for limiting the rotation of the lifting assembly (2) is arranged in the limiting holes; a locking and positioning assembly (3) is provided on the top side of the rotating base (1) near the outer ring; a connecting assembly (4) is provided on the top side of the rotating base (1) and between the lifting assembly (2) and the locking and positioning assembly (3); a processing part (5) is provided inside the outer side of the locking and positioning assembly (3); and a working table (6) is fixedly installed on the top of the locking and positioning assembly (3).

2. The workpiece locking mechanism according to claim 1, characterized in that: The lifting assembly (2) comprises a threaded sleeve (7) slidably inserted in a sliding hole, a collar (8) is fixedly installed on the outer side of the middle part of the threaded sleeve (7), six groups of slots (9) are arranged in an array on the bottom side of the collar (8), and a screw (10) is inserted into the internal thread of the threaded sleeve (7).

3. The workpiece locking mechanism according to claim 2, characterized in that: The limiting assembly comprises a compression spring (11) fixedly mounted on the bottom wall of the limiting hole, a slide cylinder (12) is slidably connected inside the limiting hole, and the top of the compression spring (11) is fixedly mounted inside the top wall of the compression spring (11), and a clamping block (13) is fixedly mounted on the top of the slide cylinder (12).

4. The workpiece locking mechanism according to claim 3, characterized in that: The slide cylinder (12) is located directly below the card slot (9), and the card block (13) is correspondingly inserted into the corresponding card slot (9).

5. The workpiece locking mechanism according to claim 3, characterized in that: The locking and positioning assembly (3) comprises a positioning seat (14) fixedly mounted on the top side of the rotating base (1) near the outer ring, a receiving chamber is provided on the outer side of the positioning seat (14), the workpiece (5) is located in the receiving chamber, a sliding rod (15) is slidably inserted inside the positioning seat (14), a fixing ring (16) is fixedly mounted on the outer side of one end of the sliding rod (15) near the center, a butterfly spring (17) is fixedly mounted between the fixing ring (16) and the positioning seat (14), and the butterfly spring (17) is sleeved on the outer side of the sliding rod (15), a pressure plate (18) is sleeved on the outer side of one end of the sliding rod (15) located in the receiving chamber, and the pressure plate (18) is slidably connected in the receiving chamber, and the side of the pressure plate (18) facing the receiving chamber has two "V"-shaped angles, and a spring pin (19) is arranged in the end of the sliding rod (15), and the spring pin (19) is against the outer side of the pressure plate (18).

6. The workpiece locking mechanism according to claim 5, characterized in that: The connection assembly (4) comprises a support (20) fixedly mounted on the top side of the rotating base (1), a rotating plate (21) being rotatably connected inside the support (20), a support plate (22) being fixedly mounted on the top side of one end of the rotating plate (21) close to the support (20), and an extrusion rod (23) being fixedly mounted inside the end of the support plate (22).

7. The workpiece locking mechanism according to claim 6, characterized in that: One end of the rotating plate (21) close to the center abuts against the top side of the collar (8), and one end of the squeezing rod (23) abuts against one end of the sliding rod (15).

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