Sandblasting locking mechanism, device and its usage

Abstract

This invention belongs to the field of 3C accessory sandblasting technology, and particularly relates to a sandblasting locking mechanism, device, and its usage method. It overcomes the shortcomings of existing technologies, such as unreasonable design. The sandblasting locking mechanism includes a connecting rod and a locking abutment block movably sleeved on the connecting rod. The mechanism also includes a movable contact movably sleeved on the connecting rod. The movable contact and the locking abutment block are connected axially along the connecting rod via an axial elastic component. Two movable push blocks are slidably connected to the movable contact, symmetrically distributed around the axis of the connecting rod. The movable push blocks and the connecting rod cooperate through a concave-convex locking structure. The movable push blocks are connected to a radial elastic component, which forces the movable push blocks to move towards each other, thereby locking the concave-convex locking structure in the axial direction of the connecting rod. Advantages of this application: Improved assembly and disassembly efficiency.

Description

Technical Field

[0001] This invention belongs to the field of 3C accessory sandblasting technology, and particularly relates to a series sandblasting locking mechanism, device and its usage method. Background Technology

[0002] In order to improve the efficiency and production capacity of sandblasting, the conventional technique for 3C accessories is to string the workpieces on a rod and then put them into the sandblasting station.

[0003] In conventional techniques, the workpiece is locked onto the truss by pressing down on the top side with a pressure plate, and the downward pressure is provided by a threaded nut. For example, a thread is provided at the top of the truss, and the nut is threadedly connected to the truss. At this time, the nut presses against the top surface of the pressure plate.

[0004] like Figure 8 As shown, existing connecting rods generally consist of at least two rods, each with a nut at its upper end. Tightening the nuts requires manual operation, which is inefficient from the perspective of workpiece locking and unlocking. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing a series-blasting sandblasting locking mechanism, device, and method of use that can solve the aforementioned technical problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solutions:

[0007] This skewered sandblasting locking mechanism includes a skewer rod and a locking abutment block movably sleeved on the skewer rod. The skewered sandblasting locking mechanism also includes a movable contact movably sleeved on the skewer rod. The movable contact and the locking abutment block are connected in the axial direction of the skewer rod by an axial elastic component. Movable push blocks are slidably connected to the movable contact and are symmetrically distributed around the axis of the skewer rod. The movable push blocks and the skewer rod are engaged by a concave-convex locking structure. The movable push blocks are connected to a radial elastic component, which forces the movable push blocks to move towards each other, thereby locking the concave-convex locking structure in the axial direction of the skewer rod.

[0008] In the above-mentioned cascade sandblasting locking mechanism, the movable contact includes a movable frame, and a fixed block is provided on one surface of the movable frame in the thickness direction. A space is formed between the movable frame and the fixed block for the movable push block to be accommodated, and the cascade rod passes through the space.

[0009] In the above-mentioned blasting and locking mechanism, the movable frame and / or the fixed block slide in conjunction with the movable push block.

[0010] In the above-mentioned blasting and sandblasting locking mechanism, the movable push block includes a first sliding part perpendicular to the axis of the blasting rod. The first sliding part and the space slide together. A second sliding part perpendicular to the first sliding part is connected to the outer end of the first sliding part. The movable frame and / or the fixed block slide together with the second sliding part.

[0011] In the above-mentioned cascade sandblasting locking mechanism, the movable frame is provided with a first sliding stop groove for the second sliding part to be inserted, and the fixed block is provided with a second sliding stop groove for the second sliding part to be inserted. The radial elastic component is fixed to the outer groove of the first sliding stop groove and / or the outer groove of the second sliding stop groove.

[0012] In the above-mentioned blasting and sandblasting locking mechanism, the radial elastic component includes a limiting block fixed to the outer opening of the first sliding stop groove and the outer opening of the second sliding stop groove. The limiting block and the movable push block are connected by a radial spring. The radial spring forces the second sliding part to abut against the bottom of the first sliding stop groove and the bottom of the second sliding stop groove.

[0013] In the above-mentioned cascade sandblasting locking mechanism, the concave-convex locking structure includes an annular locking groove provided on the cascade rod, the thickness of the movable push block is less than the width of the annular locking groove, and the opposite ends of the two movable push blocks are inserted into the annular locking groove.

[0014] In the above-mentioned cascade sandblasting locking mechanism, the two movable push blocks are respectively provided with V-shaped locking ports at their opposite ends, and the two inclined surfaces of the V-shaped locking ports are in tangential contact with the bottom of the annular locking groove.

[0015] In the above-mentioned cascade sandblasting locking mechanism, the axial elastic component includes several limiting posts fixed on the locking abutment block. The movable frame and the fixed block are respectively provided with clearance through holes through which the limiting posts pass in sequence. At the end of the limiting post away from the locking abutment block, a limiting cap is provided to block the side of the fixed block away from the movable frame. Several axial springs are provided between the locking abutment block and the movable frame.

[0016] This application also provides a cascade sandblasting locking device, which includes the aforementioned cascade sandblasting locking mechanism and a fixed base frame. One end of the cascade rod of the cascade sandblasting locking mechanism is fixed to the fixed base frame, and a workpiece stacking space is formed between the locking abutment block of the cascade sandblasting locking mechanism and the fixed base frame.

[0017] This application also provides a method for using a series-blasting sandblasting locking device, wherein the method employs the aforementioned series-blasting sandblasting locking device and includes the following steps:

[0018] S1. Insert the workpiece from the top of the rod and string it onto the rod;

[0019] S2. Sequentially insert the locking abutment block and the movable contact into the connecting rod of S1; when the movable contact is forcefully applied along the axial direction of the connecting rod, the two movable push blocks contact the cylindrical surface of the connecting rod and force the two movable push blocks to move in opposite directions, thereby causing the radial elastic component to be elastically compressed. When the two movable push blocks enter the annular locking groove of the connecting rod at their inward ends and the radial elastic component releases the compression force, the two movable push blocks abut against the bottom of the same annular locking groove at their inward ends, thereby locking the workpiece in the axial direction of the connecting rod.

[0020] S3. When the two movable push blocks move in opposite directions under the drive of the opposing translational thrust, the inner ends of the movable push blocks disengage from the annular locking groove; then, by applying an axial force opposite to that in S2, the locking abutment block and the movable contact disengage from the rod.

[0021] Compared with existing technologies, the advantages of this application are:

[0022] When the movable contact is fitted into the upper end of the connecting rod, the connecting rod forces the movable push blocks to move in opposite directions. When the movable push blocks move to the concave-convex locking structure, the radial elastic component forces the two movable push blocks to move towards each other, and the concave-convex locking structure is locked in the axial direction of the connecting rod. When the two movable push blocks move in opposite directions under the driving force of the opposing motion, the concave-convex locking structure is unlocked. Furthermore, under the action of the axial upward pushing or pulling force, the movable contact can disengage from the connecting rod. The above actions realize mechanized insertion and removal, avoid manual intervention, and greatly improve production efficiency.

[0023] The axial elastic component enables the locking and abutting block to elastically press against the workpiece in the axial direction of the rod, ensuring the fixation stability of the sandblasted workpiece. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the sandblasting locking mechanism provided by the present invention.

[0025] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure along line AA.

[0026] Figure 3 This is a three-dimensional structural diagram of the sandblasting locking mechanism provided by the present invention.

[0027] Figure 4This is a schematic diagram of the fixed block structure provided by the present invention.

[0028] Figure 5 This is a schematic diagram of the fixed block provided by the present invention from another perspective.

[0029] Figure 6 This is a schematic diagram of the active framework structure provided by the present invention.

[0030] Figure 7 This is a schematic diagram of the confrontation state structure of the active push block provided by the present invention.

[0031] Figure 8 This is a schematic diagram of the existing structure.

[0032] In the figure, there are: rod 1, annular locking groove 10, locking and abutting block 2, movable contact 3, movable frame 30, fixed block 31, space 32, first sliding stop groove 33, second sliding stop groove 34, concave notch groove 340, axial elastic component 4, limiting post 40, limiting cap 41, axial spring 42, movable push block 5, first sliding part 50, second sliding part 51, upper concave notch groove 510, V-shaped locking stop 52, radial elastic component 6, limiting block 60, radial spring 61, fixed bottom frame 7, and pressure plate assembly 8. Detailed Implementation

[0033] The following are specific embodiments of the invention, which are described in conjunction with the accompanying drawings. The technical solution of the invention will be further described, but the invention is not limited to these embodiments. Example 1

[0034] like Figures 1-3 As shown, the blasting and sandblasting locking mechanism includes two rods 1 that are parallel to each other, and a locking abutment block 2 that is movably sleeved on the rods 1. The locking abutment block 2 is provided with a first through hole through which the rods 1 pass, so as to realize the axial movement of the locking abutment block 2 on the rods 1.

[0035] The locking and pressing block 2 exerts a downward pressing effect on the stacked workpieces.

[0036] The skewer sandblasting locking mechanism also includes a movable contact 3 that is movably sleeved on the skewer rod 1. Similarly, the movable contact 3 is provided with a second through hole through which the skewer rod 1 passes, so as to realize the axial movement of the movable contact 3 on the skewer rod 1.

[0037] The movable contact 3 and the locking abutment block 2 are connected in the axial direction of the connecting rod 1 by an axial elastic component 4. Two movable push blocks 5 are slidably connected on the movable contact 3, which are symmetrically distributed around the axis of the connecting rod 1. The movable push blocks 5 and the connecting rod 1 are engaged by a concave-convex locking structure. The movable push blocks 5 are connected to a radial elastic component 6. The radial elastic component 6 forces the movable push blocks 5 to move towards each other, thereby locking the concave-convex locking structure in the axial direction of the connecting rod 1.

[0038] To facilitate the insertion of the movable contact 3 into the connecting rod 1, a chamfer is provided at the upper end of the connecting rod 1.

[0039] When the movable contact 3 is fitted into the upper end of the connecting rod 1, the connecting rod 1 forces the movable push block 5 to move in opposite directions. When the movable push block 5 moves to the concave-convex locking structure, the radial elastic component 6 forces the two movable push blocks 5 to move towards each other, and the concave-convex locking structure is locked in the axial direction of the connecting rod 1. When the two movable push blocks 5 move in opposite directions under the driving force of the opposing movement, the concave-convex locking structure is unlocked. Furthermore, under the action of the axial upward pushing or pulling force, the movable contact 3 can be disengaged from the connecting rod 1. The above actions realize mechanized insertion and removal, avoid manual intervention, and greatly improve production efficiency. At the same time, the function of the axial elastic component 4 makes the locking and abutting pressure block 2 form an elastic abutting and pressing force on the workpiece in the axial direction of the connecting rod 1, ensuring the fixed stability of the sandblasted workpiece.

[0040] In this embodiment, the radial elastic component 6 and the axial elastic component 4 are vertically distributed so that they can provide a relatively stable force in their respective directions. At the same time, the synergistic effect of the two elastic components can make the locking performance of the locking mechanism more secure.

[0041] Specifically, such as Figure 2 , Figure 3 and Figure 6 As shown, the movable contact 3 in this embodiment includes a movable frame 30, which is a rectangular frame. A partition is provided in the middle of the movable frame 30 to divide the interior of the movable frame 30 into two independent areas. The connecting rod 1 passes through a second through hole in the partition. A fixing block 31 is provided on one surface of the movable frame 30 in the thickness direction. A space 32 for the movable push block 5 to be accommodated is formed between the movable frame 30 and the fixing block 31. The connecting rod 1 passes through the space 32.

[0042] Space 32 has a guiding and limiting function. The shape of the movable push block 5 is similar to that of space 32. That is, the movable push block 5 slides in space 32. Of course, in order to reduce friction, contact ribs are provided on the surface of space 32 and / or movable push block 5. The ribs not only strengthen the structure, but also improve the smoothness of sliding.

[0043] Furthermore, the movable frame 30 and / or the fixed block 31 are slidably engaged with the movable push block 5. This slidable engagement allows for smoother sliding. The movable push block 5 includes a first sliding portion 50 perpendicular to the axis of the connecting rod 1, which is slidably engaged with the space. A second sliding portion 51 perpendicular to the first sliding portion 50 is connected to the outer end of the first sliding portion 50, and the movable frame 30 and / or the fixed block 31 are slidably engaged with the second sliding portion 51.

[0044] The first structure: the second sliding part 51 and the fixed block 31 are in sliding engagement.

[0045] The second structure: the movable frame 30 and the second sliding part 51 slide together.

[0046] The third structure: the movable frame 30 and the fixed block 31 slide in conjunction with the second sliding part 51.

[0047] like Figure 4 and Figures 6-7 As shown, the upper side of the second sliding part 51 protrudes from the upper surface of the fixing block 31. A concave notch 340 is provided at the bottom of the second sliding stop groove 34, and an upper concave notch 510 is provided on the side of the second sliding part 51 near the concave notch 340. The concave notch 340 and the upper concave notch 510 are interconnected. The driving part with opposing driving forces first enters the concave notch 340 and then enters the upper concave notch 510, thereby driving the opposing movements. The concave notch 340 provides translational guidance for the driving part, while the upper concave notch 510 prevents displacement of the driving part after it contacts the second sliding part 51. The driving part is a flat component, while the upper concave notch 510 is a rectangular or elliptical groove. The end of the driving part has a reduced-diameter portion that inserts into the upper concave notch 510.

[0048] Furthermore, the movable frame 30 is provided with a first sliding stop groove 33 for the second sliding part 51 to be inserted, and the fixed block 31 is provided with a second sliding stop groove 34 for the second sliding part 51 to be inserted. The radial elastic component 6 is fixed to the outer groove of the first sliding stop groove 33 and / or the outer groove of the second sliding stop groove 34.

[0049] There are three fixing methods: First, the radial elastic component 6 is fixed to the outer opening of the first sliding stop groove 33. Second, the radial elastic component 6 is fixed to the outer opening of the second sliding stop groove 34. Third, the radial elastic component 6 is fixed to both the outer openings of the first sliding stop groove 33 and the outer openings of the second sliding stop groove 34. For any fixing method, whether using a single outer opening or multiple outer openings, the structural strength requirements can be met. Specifically, screw fixing can be used.

[0050] Specifically, such as Figures 1-3As shown, the radial elastic component 6 in this embodiment includes a limiting block 60 fixed to the outer opening of the first sliding stop groove 33 and the outer opening of the second sliding stop groove 34. The limiting block 60 and the movable push block 5 are connected by a radial spring 61. The radial spring 61 forces the second sliding part 51 to abut against the bottom of the first sliding stop groove 33 and the bottom of the second sliding stop groove 34.

[0051] The radial spring 61 provides a compressive force so that the movable push block 5 can move in a plane perpendicular to the axis of the connecting rod 1.

[0052] Specifically, such as Figures 1-3 As shown, the concave-convex locking structure of this embodiment includes an annular locking groove 10 provided on the connecting rod 1. The thickness of the movable push block 5 is less than the groove width of the annular locking groove 10. The opposing ends of the two movable push blocks 5 are inserted into the annular locking groove 10. The opposing ends of the two movable push blocks 5 are respectively provided with V-shaped locking openings 52, and the two inclined surfaces of the V-shaped locking openings 52 are tangentially in contact with the bottom of the annular locking groove 10.

[0053] In the locked state, the opposing ends of the two movable push blocks 5 do not contact each other, so as to ensure that the two movable push blocks 5 move into place and lock in place.

[0054] Specifically, the axial elastic component 4 includes several limiting posts 40 fixed to the locking and abutting block 2. The movable frame 30 and the fixed block 31 are respectively provided with clearance through holes through which the limiting posts 40 pass. At the end of the limiting post 40 away from the locking and abutting block 2, a limiting cap 41 is provided to block the side of the fixed block 31 away from the movable frame 30. Several axial springs 42 are provided between the locking and abutting block 2 and the movable frame 30. The axial springs 42 provide axial compression force to press the workpiece tightly, and provide a buffer force when in contact with the workpiece to prevent damage, etc.

[0055] The working principle of this embodiment is as follows:

[0056] The connecting rod 1 is in a vertical position, and the workpiece is nested on the connecting rod 1.

[0057] Insert the locking and pressing block 2 and the movable contact 3 into the connecting rod 1 in sequence.

[0058] At this time, the outer cylindrical surface of the connecting rod 1, except for the annular locking groove 10, forces the two movable push blocks 5 to move in opposite directions. At the same time, under the action of the axial downward thrust, the movable contact 3 and the locking abutment block 2 move downward at the same time. When the opposite end of the movable push block 5 is inserted into the annular locking groove 10, the locking purpose is achieved.

[0059] When disassembly is required, the two movable push blocks 5 apply a pushing force on a plane perpendicular to the axial direction of the connecting rod 1, causing the two movable push blocks 5 to move in opposite directions. At this time, under the action of axial thrust or tension, the opposite ends of the movable push blocks 5 are disengaged from the annular locking groove 10 and disengaged along the upper end of the connecting rod 1, thus achieving disassembly.

[0060] The above actions do not require manual intervention, achieving mechanized locking and unlocking. Example 2

[0061] Based on Example 1, such as Figures 1-7 As shown, this embodiment provides a cascade sandblasting locking device, which includes the cascade sandblasting locking mechanism of Embodiment 1, and also includes a fixed base frame 7. One end of the cascade rod 1 of the cascade sandblasting locking mechanism is fixed to the fixed base frame 7, and a workpiece stacking space is formed between the locking abutment block 2 of the cascade sandblasting locking mechanism and the fixed base frame 7.

[0062] A pressure plate assembly 8 is also fitted on the rod 1 below the locking and abutting pressure block 2. The pressure plate assembly 8 includes a lower pressure plate and an upper pressure plate arranged sequentially from bottom to top. There is an intermediate pad between the lower pressure plate and the upper pressure plate. The lower pressure plate, the upper pressure plate and the intermediate pad form two side spaces. The lower pressure plate is provided with guide posts located in the two side spaces. The upper pressure plate is provided with a correction through hole for the guide posts to be inserted. Example 3

[0063] like Figures 1-7 As shown, this embodiment provides a method for using a series-blasting sandblasting locking device. The method for using the series-blasting sandblasting locking device adopts the series-blasting sandblasting locking device of Embodiment 2, and includes the following steps:

[0064] S1. Insert the workpiece from the upper end of the connecting rod 1 and string it onto the connecting rod 1;

[0065] S2. Sequentially insert the locking abutment block 2 and the movable contact 3 onto the connecting rod 1 of S1; when the movable contact 3 is subjected to force along the axial direction of the connecting rod 1, the two movable push blocks 5 contact the cylindrical surface of the connecting rod 1 and force the two movable push blocks 5 to move in opposite directions, thereby causing the radial elastic component 6 to be elastically compressed. When the two movable push blocks 5 enter the annular locking groove 10 of the connecting rod 1 at their inward ends and the radial elastic component 6 releases the compression force, the two movable push blocks 5 abut against the bottom of the same annular locking groove 10 at their inward ends, thereby achieving the locking of the workpiece in the axial direction of the connecting rod 1.

[0066] S3. When the two movable push blocks 5 move in opposite directions under the drive of the opposing translational thrust, the inner ends of the movable push blocks 5 are disengaged from the annular locking groove 10; then, by applying an axial force opposite to that in S2, the locking abutment block 2 and the movable contact 3 are disengaged from the connecting rod 1.

[0067] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A sandblasting locking mechanism, comprising a guide rod (1) on which a workpiece is nested, and a locking abutment block (2) movably fitted onto the guide rod (1), characterized in that, The sandblasting locking mechanism also includes a movable contact (3) movably sleeved on the rod (1). The movable contact (3) and the locking abutment block (2) are connected in the axial direction of the rod (1) via an axial elastic component (4). Two movable push blocks (5) are slidably connected on the movable contact (3) and are symmetrically distributed along the axis of the rod (1). The movable push blocks (5) and the rod (1) are engaged by a concave-convex locking structure. The movable push blocks (5) are connected to a radial elastic component (6). The radial elastic component (6) forces the movable push blocks (5) to move towards each other, thereby locking the concave-convex locking structure in the axial direction of the rod (1).

2. The sandblasting locking mechanism according to claim 1, characterized in that, The movable contact (3) includes a movable frame (30), and a fixed block (31) is provided on one surface of the movable frame (30) in the thickness direction. A space (32) is formed between the movable frame (30) and the fixed block (31) for the movable push block (5) to be accommodated. The connecting rod (1) passes through the space (32).

3. The sandblasting locking mechanism according to claim 2, characterized in that, The movable frame (30) and / or the fixed block (31) slide in cooperation with the movable push block (5).

4. The sandblasting locking mechanism according to claim 3, characterized in that, The movable push block (5) includes a first sliding part (50) perpendicular to the axis of the connecting rod (1), the first sliding part (50) and the space slide in cooperation, and a second sliding part (51) perpendicular to the first sliding part (50) is connected to the outer end of the first sliding part (50), the movable frame (30) and / or the fixed block (31) slide in cooperation with the second sliding part (51).

5. The sandblasting locking mechanism according to claim 4, characterized in that, The movable frame (30) is provided with a first sliding stop groove (33) for the second sliding part (51) to be inserted, and the fixed block (31) is provided with a second sliding stop groove (34) for the second sliding part (51) to be inserted. The radial elastic component (6) is fixed to the outer groove of the first sliding stop groove (33) and / or the outer groove of the second sliding stop groove (34).

6. The sandblasting locking mechanism according to claim 5, characterized in that, The radial elastic component (6) includes a limiting block (60) fixed to the outer opening of the first sliding stop groove (33) and the outer opening of the second sliding stop groove (34). The limiting block (60) and the movable push block (5) are connected by a radial spring (61). The radial spring (61) forces the second sliding part (51) to abut against the bottom of the first sliding stop groove (33) and the bottom of the second sliding stop groove (34).

7. The sandblasting locking mechanism according to claim 1, characterized in that, The concave-convex locking structure includes an annular locking groove (10) provided on the string rod (1). The thickness of the movable push block (5) is less than the groove width of the annular locking groove (10). The opposite ends of the two movable push blocks (5) are inserted into the annular locking groove (10).

8. The sandblasting locking mechanism according to claim 7, characterized in that, The two movable push blocks (5) are respectively provided with V-shaped locking ports (52) at their opposite ends, and the two inclined surfaces of the V-shaped locking ports (52) are in tangential contact with the bottom of the annular locking groove (10).

9. The sandblasting locking mechanism according to claim 2, characterized in that, The axial elastic component (4) includes several limiting posts (40) fixed on the locking and abutting block (2). The movable frame (30) and the fixed block (31) are respectively provided with clearance through holes through which the limiting posts (40) pass in sequence. The end of the limiting post (40) away from the locking and abutting block (2) is provided with a limiting cap (41) that blocks the side of the fixed block (31) away from the movable frame (30). Several axial springs (42) are provided between the locking and abutting block (2) and the movable frame (30).

10. A series-fired sandblasting locking device, characterized in that, The stringing sandblasting locking device includes the sandblasting locking mechanism as described in any one of claims 1-9, and also includes a fixed base frame (7). One end of the stringing rod (1) of the sandblasting locking mechanism is fixed to the fixed base frame (7), and a workpiece stacking space is formed between the locking abutment block (2) of the sandblasting locking mechanism and the fixed base frame (7).

11. The method of using the cascade sandblasting locking device, characterized in that, The method of using the cascade sandblasting and locking device as described in claim 10 includes the following steps: S1. Insert the workpiece from the upper end of the connecting rod (1) and string it onto the connecting rod (1); S2. Sequentially insert the locking abutment block (2) and the movable contact (3) onto the rod (1) of S1. When the movable contact (3) is subjected to force along the axial direction of the rod (1), the two movable push blocks (5) contact the cylindrical surface of the rod (1) and force the two movable push blocks (5) to move in opposite directions, thereby causing the radial elastic component (6) to compress elastically. When the two movable push blocks (5) enter the annular locking groove (10) of the rod (1) and the radial elastic component (6) releases the compression force, the two movable push blocks (5) abut against the bottom of the same annular locking groove (10) respectively, thereby locking the workpiece in the axial direction of the rod (1). S3. When the two movable push blocks (5) move in opposite directions under the driving force of the opposing translational thrust, the movable push blocks (5) disengage from the annular locking groove (10) at their inner ends; then, by applying an axial force opposite to that in S2, the locking abutment block (2) and the movable contact (3) disengage from the connecting rod (1).

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