Positioning clamp for sand blasting

Abstract

The utility model discloses a positioning fixture for sand blasting, which relates to the technical field of sand blasting auxiliary tooling, and comprises a mounting frame body, an operation panel is fixedly mounted on the outer side of the mounting frame body, a first motor is arranged on one side of the operation panel, one side of the first motor is connected with a bidirectional screw rod, the outer wall of the bidirectional screw rod is connected with a first screw rod nut, and the outer wall of the first screw rod nut is connected with a second screw rod nut. The first lead screw nut is fixed in the first mounting plate, a second motor is fixed to the side face of the first mounting plate, a driving shaft is connected to one side of the second motor, a first spline sleeve is fixedly connected to one side of the driving shaft, a hexagonal sleeve connector is connected into the first spline sleeve, and the hexagonal sleeve connector is fixed to the end face of the center rod. A baffle ring is connected to the outer wall of the center rod, and an annular part is arranged on one side of the baffle ring. By arranging the automatic rotating mechanism, the center rod drives a plurality of groups of annular parts to rotate, so that sand blasting can be carried out on the parts in different directions, the operation is convenient and fast, and meanwhile, the labor burden is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sand blasting auxiliary tooling, in particular to a positioning fixture for sand blasting. Background Art

[0002] Sand blasting, also known as sandblasting, is a processing technology that has low cost and high efficiency in processing parts.

[0003] At present, when circumferential sandblasting is performed on thin annular parts, due to the thinness of the parts, the sand is easily blown onto the axial end face of the parts, causing damage to the parts; at the same time, during sandblasting, only a single part can be sandblasted, which is inefficient and far from meeting the requirements for mass production.

[0004] After searching the existing Chinese patents: a sand blasting fixture (Announcement No.: CN214237762U), including: a center rod, a plurality of retaining rings are sleeved on the middle of the center rod, and blocks for clamping the retaining rings are installed at both ends of the center rod; ears are fixedly installed between the retaining rings and the blocks on both ends of the center rod, a slide bar is installed between the ears, and a sand blasting baffle that can slide along the slide bar is sleeved on the slide bar. The axial end face of the retaining ring is tightly attached to the axial end face of the part, and only the part that needs sand blasting is exposed, which avoids the axial end face of the part being damaged by sand blasting during sand blasting. Since multiple parts are sleeved on the center rod for sand blasting, the processing efficiency of sand blasting is improved, and the batch sand blasting production of parts is met; the sliding sand blasting baffle shields other parts of the part that no longer need to be sand blasted again, and then performs secondary sand blasting, avoiding the overall disassembly and reinstallation of multiple parts for sand blasting, thereby improving production efficiency.

[0005] Although the above patent has multiple retaining rings mounted on the middle part of the center rod so that the multiple retaining rings can shield the axial end faces of the parts, thereby preventing the axial end faces of the parts from being damaged by sand blowing, when sand blowing is performed on multiple groups of parts, because the parts are annular, after a part of the parts is sand blown, the back side needs to be sand blown, which requires the center rod where the parts are located to be rotated. However, the above patent can only rotate the center rod manually, which is inconvenient to operate and consumes the worker's physical strength, while reducing the worker's work efficiency.

[0006] Therefore, it is necessary to invent a positioning fixture for sand blasting to solve the above problems. Utility Model Content

[0007] The utility model aims to provide a positioning fixture for sand blasting, so as to solve the problem in the above background technology that it is inconvenient to rotate the mounting mechanism where the parts are located.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning fixture for sand blasting, comprising a mounting frame, an operating panel is fixedly mounted on the outer side of the mounting frame, a first motor is arranged on one side of the operating panel, a bidirectional screw is connected to one side of the first motor, a first screw nut is connected to the outer wall of the bidirectional screw, the first screw nut is fixed to the inside of a first mounting plate, a second motor is fixed to the side of the first mounting plate, a drive shaft is connected to one side of the second motor, a first spline sleeve is fixedly connected to one side of the drive shaft, a hexagonal sleeve joint is connected to the inside of the first spline sleeve, the hexagonal sleeve joint is fixed to the end face of a center rod, a retaining ring is connected to the outer wall of the center rod, and an annular part is arranged on one side of the retaining ring.

[0009] Preferably, a support leg is fixed to the bottom of the installation frame, and one end of the bidirectional screw is connected to a first bearing seat.

[0010] Preferably, a first guide sliding hole is provided inside the first mounting plate, and a limiting guide rod is connected inside the first guide sliding hole.

[0011] Preferably, a limit stopper is provided on the outside of the hexagonal socket.

[0012] Preferably, a second spline sleeve is provided at one end of the center rod away from the first spline sleeve, and a driven shaft is fixed to a side surface of the second spline sleeve.

[0013] Preferably, one end of the driven shaft is connected to a second bearing seat, and the second bearing seat is fixed to a side surface of the second mounting plate.

[0014] Preferably, a second lead screw nut is installed inside the second mounting plate, and a second guide sliding hole is opened inside the second mounting plate.

[0015] Technical effects and advantages of the utility model:

[0016] 1. By setting an automatic rotating mechanism, an operating panel, a second motor, a driving shaft, a first spline sleeve, a hexagonal sleeve joint, a center rod, a retaining ring, and an annular part, when multiple groups of annular parts are installed on the center rod, the annular parts on the center rod are sandblasted at this time, and the second motor is started through the operating panel so that the second motor drives the driving shaft to rotate, one end of the driving shaft is fixed with a first spline sleeve, the interior of the first spline sleeve is connected with a hexagonal sleeve joint, the hexagonal sleeve joint is fixed to the side of the center rod, and the outer wall of the center rod is connected with multiple groups of retaining rings, and annular parts are placed between the two groups of retaining rings. In this way, when the second motor is running, the center rod drives the multiple groups of annular parts to rotate, so that there is no need to manually rotate the center rod, so that the automatic rotation of the annular parts can be realized, which is convenient for blowing sand on the annular parts in all directions, and solves the problem in the prior art that the parts are sleeved on the center rod and the position of the center rod needs to be manually rotated to blow sand on the parts in different directions, thereby further improving the degree of automation of the device, while reducing the manpower burden and improving work efficiency;

[0017] 2. By setting a clamping installation mechanism, an operation panel, a first motor, a bidirectional screw, a first screw nut, a first mounting plate, a first guide slide hole, a limit guide rod, a second spline sleeve, a driven shaft, a second bearing seat, a second mounting plate, a second screw nut, and a second guide slide hole, the first motor is started through the operation panel so that the first motor drives the bidirectional screw to rotate, the outer wall of the bidirectional screw is connected with the first screw nut and the second screw nut, the first screw nut is installed inside the first mounting plate, the second screw nut is installed inside the second mounting plate, the side of the first mounting plate is fixed with the second motor, the second motor is connected to the hexagonal sleeve joint of the center rod through the drive shaft and the spline sleeve, and the side of the second mounting plate is fixed A second bearing seat is provided, a driven shaft is connected inside the second bearing seat, a second spline sleeve is fixed at one end of the driven shaft, the second spline sleeve is sleeved on the outside of another group of hexagonal sleeve joints, the other group of hexagonal sleeve joints is fixed to the other end of the center rod, the first mounting plate and the second mounting plate move towards or oppositely on the bidirectional screw under the limiting guiding action of the limiting guide rod, so that the first mounting plate and the second mounting plate drive the corresponding first spline sleeve and the second spline sleeve to move towards or oppositely, so that the first spline sleeve and the second spline sleeve can clamp or disengage from the two groups of hexagonal sleeve joints, so that the device is convenient for clamping and fixing the center rod, and it is also convenient for disassembling multiple groups of retaining rings and annular parts on the center rod;

[0018] 3. By setting two sets of limit baffles, multiple sets of baffle rings and multiple sets of annular parts on the center rod can be fixed on the center rod through the two sets of limit baffles, which can prevent the multiple sets of baffle rings and multiple sets of annular parts from detaching from the center rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 The utility model is a front view structural schematic diagram of a positioning fixture for sand blasting.

[0021] Figure 2 The utility model is a disassembled diagram of an automatic rotating mechanism and a clamping and installing mechanism of a positioning fixture for sand blasting.

[0022] Figure 3 The utility model is a schematic diagram of the top view of the positioning fixture for sand blowing.

[0023] Figure 4 The utility model is a bottom view structural schematic diagram of a positioning fixture for sand blowing.

[0024] In the figure: 1. installation frame; 2. support leg; 3. operation panel; 4. first motor; 5. bidirectional screw; 6. first bearing seat; 7. first screw nut; 8. first mounting plate; 9. first guide slide hole; 10. limit guide rod; 11. second motor; 12. drive shaft; 13. first spline sleeve; 14. hexagonal sleeve joint; 15. center rod; 16. limit baffle; 17. baffle ring; 18. annular part; 19. second spline sleeve; 20. driven shaft; 21. second bearing seat; 22. second mounting plate; 23. second screw nut; 24. second guide slide hole. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0026] The utility model provides Figure 1-4A positioning fixture for sand blasting shown in the figure comprises a mounting frame 1, an operating panel 3 is fixedly mounted on the outer side of the mounting frame 1, wherein the operating panel 3 serves to operate a first motor 4 and a second motor 11, a first motor 4 is arranged on one side of the operating panel 3, wherein the first motor 4 serves to drive a bidirectional screw 5 to rotate, a bidirectional screw 5 is connected to one side of the first motor 4, wherein the bidirectional screw 5 serves to drive a first screw nut 7 and a second screw nut 23 to move toward or oppositely, a first screw nut 7 is connected to the outer wall of the bidirectional screw 5, wherein the first screw nut 7 serves to drive a first mounting plate 8 to move, the first screw nut 7 is fixed inside the first mounting plate 8, wherein the first mounting plate 8 serves to install and drive the second motor 11 to move, a second motor 11 is fixed to the side of the first mounting plate 8, wherein the second motor 11 It plays a role in driving the driving shaft 12 to rotate. One side of the second motor 11 is connected to the driving shaft 12, wherein the driving shaft 12 plays a role in driving the first spline sleeve 13 to rotate. One side of the driving shaft 12 is fixedly connected to the first spline sleeve 13, wherein the first spline sleeve 13 plays a role in connecting the hexagonal sleeve joint 14. The interior of the first spline sleeve 13 is connected with the hexagonal sleeve joint 14, wherein there are two groups of hexagonal sleeve joints 14, one group plays a role in connecting the first spline sleeve 13, and the other group plays a role in connecting the second spline sleeve 19. The hexagonal sleeve joints 14 are fixed to the end face of the center rod 15, wherein the center rod 15 plays a role in sleeve-connecting multiple groups of retaining rings 17 and multiple groups of annular parts 18. The outer wall of the center rod 15 is connected to the retaining ring 17, wherein two adjacent groups of retaining rings 17 play a role in limiting the movement of the annular part 18, and an annular part 18 is arranged on one side of the retaining ring 17.

[0027] A support leg 2 is fixed to the bottom of the mounting frame 1, and one end of the bidirectional screw 5 is connected to a first bearing seat 6, wherein there are four groups of support legs 2, and the four groups of support legs 2 serve to support the mounting frame 1, and the first bearing seat 6 allows the bidirectional screw 5 to rotate inside it.

[0028] A first guide slide hole 9 is opened inside the first mounting plate 8, and a limiting guide rod 10 is connected inside the first guide slide hole 9, wherein the first guide slide hole 9 allows the limiting guide rod 10 to slide inside it, and the limiting guide rod 10 plays a role in guiding and limiting the movement of the first mounting plate 8 and the second mounting plate 22.

[0029] The outside of the hexagonal sleeve 14 is provided with a limit baffle 16 , wherein two groups of limit baffles 16 play a role in limiting the movement of the multiple groups of baffle rings 17 .

[0030] A second spline sleeve 19 is provided at one end of the center rod 15 away from the first spline sleeve 13, and a driven shaft 20 is fixed to the side of the second spline sleeve 19, wherein the second spline sleeve 19 serves to connect another set of hexagonal socket joints 14, and the driven shaft 20 serves to cooperate with the driving shaft 12 to rotate.

[0031] One end of the driven shaft 20 is connected to a second bearing seat 21 , which is fixed to the side of a second mounting plate 22 , wherein the second bearing seat 21 allows the driven shaft 20 to rotate inside it, and the second mounting plate 22 serves to fix the second bearing seat 21 .

[0032] A second lead screw nut 23 is installed inside the second mounting plate 22, and a second guide slide hole 24 is opened inside the second mounting plate 22, wherein the second lead screw nut 23 drives the second mounting plate 22 to move, and the second guide slide hole 24 allows the limiting guide rod 10 to slide within it.

[0033] Working principle: During use, when multiple groups of annular parts 18 are installed on the center rod 15, the annular parts 18 on the center rod 15 are sandblasted, and the second motor 11 is started through the operation panel 3, so that the second motor 11 drives the driving shaft 12 to rotate, and a first spline sleeve 13 is fixed to one end of the driving shaft 12, and a hexagonal sleeve joint 14 is connected to the inside of the first spline sleeve 13, and the hexagonal sleeve joint 14 is fixed to the side of the center rod 15. Multiple groups of retaining rings 17 are connected to the outer wall of the center rod 15, and annular parts 18 are placed between two groups of retaining rings 17. In this way, when the second motor 11 is running, the center rod 15 drives the multiple groups of annular parts 18 to rotate, so that there is no need to manually rotate the center rod 15, so that the automatic rotation of the annular parts 18 can be realized, which is convenient for blowing sand on the annular parts 18 in all directions, and solves the problem in the prior art that the part sleeve on the center rod 15 needs to be manually rotated to blow sand on the part in different directions, thereby further improving the degree of automation of the device, while reducing the manpower burden and improving work efficiency.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A positioning fixture for sand blasting, comprising a mounting frame (1), Features: An operating panel (3) is fixedly mounted on the outer side of the mounting frame (1); a first motor (4) is arranged on one side of the operating panel (3); a bidirectional screw (5) is connected to one side of the first motor (4); a first screw nut (7) is connected to the outer wall of the bidirectional screw (5); the first screw nut (7) is fixed inside a first mounting plate (8); a second motor (11) is fixed to the side of the first mounting plate (8); a drive shaft (12) is connected to one side of the second motor (11); a first spline sleeve (13) is fixedly connected to one side of the drive shaft (12); a hexagonal sleeve joint (14) is connected to the inside of the first spline sleeve (13); the hexagonal sleeve joint (14) is fixed to the end face of a center rod (15); a retaining ring (17) is connected to the outer wall of the center rod (15); a ring part (18) is arranged on one side of the retaining ring (17).

2. A positioning fixture for sand blasting according to claim 1, Features: A support leg (2) is fixed to the bottom of the installation frame (1), and one end of the bidirectional screw (5) is connected to a first bearing seat (6).

3. A positioning fixture for sand blasting according to claim 1, Features: A first guide sliding hole (9) is provided inside the first mounting plate (8), and a limiting guide rod (10) is connected inside the first guide sliding hole (9).

4. A positioning fixture for sand blasting according to claim 1, Features: A limit stopper (16) is arranged outside the hexagonal sleeve joint (14).

5. A positioning fixture for sand blasting according to claim 1, Features: A second spline sleeve (19) is provided at one end of the center rod (15) away from the first spline sleeve (13), and a driven shaft (20) is fixed to the side of the second spline sleeve (19).

6. A positioning fixture for sand blasting according to claim 5, Features: One end of the driven shaft (20) is connected to a second bearing seat (21), and the second bearing seat (21) is fixed on the side of the second mounting plate (22).

7. A positioning fixture for sand blasting according to claim 6, Features: A second lead screw nut (23) is installed inside the second mounting plate (22), and a second guide sliding hole (24) is opened inside the second mounting plate (22).

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