A position limiting mechanism of a sand blasting machine capable of changing the state of a metal workpiece

Abstract

The application relates to the technical field of sand blasting limiting mechanisms, and discloses a sand blasting machine limiting mechanism capable of changing the state of metal workpieces, which comprises a vertical frame, the lower end of which is matched with a motor; a ring-shaped limiting ring, which is sleeved on the vertical frame and is fixedly arranged on the vertical frame; and a clamping unit, which is sleeved on the ring-shaped limiting ring, clamps a workpiece body on the clamping unit, and comprises a transverse part and a longitudinal part; the transverse part is locally rotated under the rotating force of the vertical frame; the longitudinal part is telescopic and can be inclined after being extended outward. The workpiece body can be continuously rotated under the action of the setting; after the workpiece body is clamped on the clamping plates on the two sides, the workpiece body is rotated in the forward and reverse directions under the action of the motor, the transverse part is rotated by a certain angle, the clamped workpiece body is also rotated, the workpiece body can be processed on multiple surfaces, and the processing surfaces can be kept in the same state to a certain extent.

Description

Technical Field

[0001] This invention relates to the field of sandblasting limiting mechanism technology, specifically a sandblasting machine limiting mechanism that can change the state of a metal workpiece. Background Technology

[0002] A sandblasting machine is a mechanical device that uses high-pressure jets of water or air to propel sand particles to remove surface dirt, burrs, or damage. It is widely used in various industries, such as metal processing, construction, shipbuilding, mining, and stone processing. During sandblasting, the workpiece needs to be restrained to ensure it is held while allowing sand particles to impact it. However, since the workpiece has multiple surfaces that need to be impacted, the restraining device needs to clamp the workpiece multiple times or in multiple directions, requiring multiple pick-and-place operations. This is especially true for workpieces with curved or multi-directional extensions, which require even more multi-directional clamping during the clamping process to ensure impact on multiple surfaces and to restrict the direction of sand particle ejection. Consequently, different positions on the workpiece are subjected to different sandblasting angles, resulting in varying treatment effects even on the same surface. Based on this, some improvements are proposed. Summary of the Invention

[0003] The purpose of this invention is to provide a sandblasting machine limiting mechanism that can change the state of a metal workpiece, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a sandblasting machine limiting mechanism capable of changing the state of a metal workpiece, comprising... A vertical frame, the lower end of which is fitted with a motor; An annular limiting ring is fitted onto the vertical frame and is fixedly installed with the vertical frame; A clamping unit is sleeved on an annular limiting ring and clamps a workpiece. The clamping unit includes a horizontal part and a vertical part. The horizontal part rotates locally due to the force of the vertical frame rotating. The vertical part is telescopic and can tilt after extending outward.

[0005] Preferably, the annular limiting ring has a cylindrical cross-section and consists of multiple cylindrical sections joined together in straight lines.

[0006] Preferably, the transverse portion is tubular and is fitted onto an annular limiting ring. An inner layer is fixed on the inner wall of the transverse portion, and two ends of the inner layer are fixed with circumferentially distributed inner abutment blocks. The ends of the inner abutment blocks are rounded. Both ends of the horizontal section are fitted with limiting sleeves, which are fixedly fitted onto an annular limiting ring. One end of the limiting sleeve facing the inside of the horizontal section is integrally formed with two inner blocks in a circular shape. The inner blocks are fitted together with the inner blocks. The horizontal section slides to both sides, driving the inner blocks to fit together and achieve rotation of the horizontal section.

[0007] Preferably, the first inner abutment block is straight, the second inner abutment block is triangular, and one side of the second inner abutment block is inclined, while the other side is straight, and the two inner abutment blocks are staggered. When the inner abutment block one on one side is subjected to force and slides along the inclined surface of the inner abutment block two on one side to the bottom, the extension line of the inner abutment block one on the other side contacts the inclined surface of the inner abutment block two on the other side.

[0008] Preferably, the longitudinal portion is provided in multiple groups, and all are distributed on the outside of the transverse portion. The longitudinal portion includes a longitudinal connector one and a longitudinal connector two. The longitudinal connector is fixed to the outside of the transverse portion. The outer end of the longitudinal connector is provided with a mating hole, and the opening of the mating hole is constricted. One end of the second longitudinal connector contacts the first longitudinal connector, and the end of the second longitudinal connector that contacts the first longitudinal connector is fixed with a metal mating end. The end of the metal mating end is spherical and extends into the mating hole. The middle of the metal mating end is shaft-shaped, and the diameter of the shaft-shaped part is smaller than the diameter of the spherical part. The diameter of the shaft-shaped part of the metal mating end gradually increases outward, and the outermost diameter is engaged with the opening of the mating hole. The longitudinal connector is stretched outward, and the metal mating end shaft portion is disconnected from the mating hole opening, so that the longitudinal connector can be tilted.

[0009] Preferably, an outer support plate is fixed to the outer side of the second longitudinal connecting body. A sliding groove is provided on the outer support plate, and a return spring is fixed in the sliding groove. A clamping plate is fixed to the end of the return spring. The lower part of the clamping plate is I-shaped and clamps the outer support plate.

[0010] Preferably, the clamping plate extends in a straight line from the inside to the outside, and then extends outward at an angle.

[0011] Preferably, a stop plate is slidably provided on the vertical frame along the axis. The stop plate can be engaged with the vertical frame by bolts. The upper end of the stop plate is used to support the workpiece and to keep the metal mating end shaft-shaped part from mating with the opening of the mating hole.

[0012] Compared with the prior art, the beneficial effects of the present invention are: (1) The present invention sets the workpiece body to rotate continuously under the action. After the workpiece body is clamped on the clamping plates on both sides, it realizes reciprocating rotation in the forward and reverse directions under the action of the motor, realizing rotation of the lateral part at a certain angle. The clamped workpiece body also rotates accordingly. It can process multiple sides of the workpiece body while keeping the processed surfaces in the same state to a certain extent.

[0013] (2) The present invention sets the workpiece body to tilt when subjected to force. Several sets of longitudinal parts make the spherical part of the metal mating end engage with the opening of the mating hole, and then clamp the workpiece body. During the reciprocating rotation of the vertical frame, the workpiece body is subjected to inertia, and the axial part of the metal mating end tilts to one side, causing the workpiece body to tilt. The side of the workpiece body can also be processed relatively, which relatively reduces the rework of the workpiece body.

[0014] (3) By setting the position of the adjustable plate, the present invention enables the plate to support the workpiece, and the horizontal part is difficult to move during reciprocating motion, which is suitable for workpieces that are processed on one side. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the annular limiting ring structure of the present invention; Figure 3 This is a schematic diagram of the clamping unit structure of the present invention; Figure 4 For the present invention Figure 3 A magnified schematic diagram of the structure of part A in the diagram; Figure 5 This is a schematic diagram of the clamping plate structure of the present invention; Figure 6 This is a schematic diagram of the transverse structure of the present invention; Figure 7 This is a schematic diagram of a partial planar structure of the transverse portion of the present invention; Figure 8 This is a schematic diagram of the structure where the transverse portion of the present invention moves to one side in a planar motion. Figure 9 This is a schematic diagram of the structure where a partial planar movement of the transverse portion of the present invention moves to the other side.

[0016] In the diagram: 1. Vertical frame; 2. Annular limiting ring; 3. Clamping unit; 31. Horizontal part; 311. Inner layer; 312. Inner abutment block one; 313. Limiting sleeve; 314. Inner abutment block two; 32. Longitudinal part; 321. Longitudinal connecting body one; 322. Mating hole; 323. Longitudinal connecting body two; 324. Metal mating end; 33. Outer support plate; 34. Slide groove; 35. Return spring; 36. Clamping plate; 4. Workpiece body; 5. Abutment plate. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1-9 This invention provides a technical solution: a sandblasting machine limiting mechanism that can change the state of a metal workpiece, comprising... Vertical frame 1, the lower end of which is connected to the motor; The annular limiting ring 2 is fitted onto the vertical frame 1 and is fixedly installed with the vertical frame 1; A clamping unit 3 is sleeved on the annular limiting ring 2, and clamps the workpiece 4. The clamping unit 3 includes a transverse part 31 and a longitudinal part 32. The transverse part 31 rotates partially due to the force of the rotation of the vertical frame 1. The longitudinal part 32 is telescopic and can tilt after extending outward. Figure 3 As shown, the longitudinal portion 32 is connected to the transverse portion 31.

[0019] The cross-section of the annular limiting ring 2 is cylindrical, and it consists of multiple straight sections of cylinders spliced ​​together, so that the transverse part 31 can be directly fitted onto the annular limiting ring 2 without affecting the rotation of the transverse part 31.

[0020] like Figure 6 As shown, the transverse part 31 is tubular and is fitted onto the annular limiting ring 2. An inner layer 311 is fixed on the inner wall of the transverse part 31. Both ends of the inner layer 311 are fixed with circumferentially distributed inner abutment blocks 312. The ends of the inner abutment blocks 312 are rounded, and the rounded ends allow the inner abutment blocks 312 to slide along the inclined surface of the inner abutment blocks 314. Both ends of the transverse portion 31 are fitted with limiting sleeves 313, which are fixedly fitted onto the annular limiting ring 2. The end of the limiting sleeve 313 facing the inside of the transverse portion 31 is integrally formed with two inner abutment blocks 314 in a circular shape. The inner abutment block 312 and the inner abutment block 314 are fitted together. The transverse portion 31 slides to both sides, driving the inner abutment block 312 and the inner abutment block 314 to fit together, thereby realizing the rotation of the transverse portion 31.

[0021] The inner abutment block 1 312 is straight, the inner abutment block 2 314 is triangular, and one side of the inner abutment block 2 314 is inclined, while the other side is straight. The inner abutment blocks 2 314 on both sides are staggered. When the inner abutment block 312 on one side is subjected to force and slides along the inclined surface of the inner abutment block 314 on the other side to the bottom, the extension line of the inner abutment block 312 on the other side contacts the inclined surface of the inner abutment block 314 on the other side. Under the action of inertia, the transverse part 31 moves, realizing the movement of the inner abutment block 312. At the same time, the inner abutment block 312 slides with the inclined surface of the inner abutment block 314, realizing the inner layer 311 moving along the inclined surface and being subjected to force, realizing local rotation, so that the inner abutment block 312 on one side contacts the bottom end of the inclined surface of the inner abutment block 314 on one side. Conversely, during the movement to the other side, the inner abutment block 312 on the other side slides with the inclined surface of the inner abutment block 314 on the other side, further realizing the rotation of the inner layer 311. Under the action of rotation and reciprocation, the sliding is continuously realized, and thus the rotation is continuously realized, processing the workpiece 4.

[0022] like Figure 4 As shown, the longitudinal portion 32 is provided with multiple sets, all of which are distributed on the outside of the transverse portion 31. The longitudinal portion 32 includes a longitudinal connector 1 321 and a longitudinal connector 2 323. The longitudinal connector 321 is fixed to the outside of the transverse part 31. The outer end of the longitudinal connector 321 is provided with a mating hole 322, and the opening of the mating hole 322 is constricted. One end of the second longitudinal connector 323 contacts the first longitudinal connector 321, and a metal mating end 324 is fixed at the end of the second longitudinal connector 323. The end of the metal mating end 324 is spherical and extends into the mating hole 322. The middle of the metal mating end 324 is shaft-shaped, and the diameter of the shaft-shaped part is smaller than the diameter of the spherical part. The diameter of the shaft-shaped part of the metal mating end 324 gradually increases outward, and the outermost diameter is engaged with the opening of the mating hole 322. When the second longitudinal connector 323 is stretched outward, the axial portion of the metal mating end 324 is disconnected from the opening of the mating hole 322, allowing the second longitudinal connector 323 to tilt. When the first longitudinal connector 321 and the second longitudinal connector 323 are in a mating state, the first longitudinal connector 321 and the second longitudinal connector 323 are aligned. Conversely, when the second longitudinal connector 323 is stretched outward, its end is limited by the metal mating end 324, allowing the second longitudinal connector 323 to swing at a certain angle.

[0023] like Figure 5 As shown, an outer support plate 33 is also fixed on the outer side of the longitudinal connecting body 323. A sliding groove 34 is provided on the outer support plate 33. A return spring 35 is fixed in the sliding groove 34. A clamping plate 36 is fixed at the end of the return spring 35. The lower part of the clamping plate 36 is I-shaped and clamps the outer support plate 33. The workpiece 4 is clamped by the clamping plate 36.

[0024] The clamping plate 36 extends in a straight line from the inside to the outside, and then extends outward at an angle. Pushing the workpiece 4 inward can achieve the clamping function.

[0025] A support plate 5 is slidably provided on the vertical frame 1 along the axis. The support plate 5 can be locked to the vertical frame 1 by bolts. The upper end of the support plate 5 is used to support the workpiece body 4 and to keep the metal mating end 324 shaft-shaped part from mating hole 322 opening, so as to achieve the function of support and also prevent the rotation of the horizontal part 31.

[0026] In use, the workpiece 4 is clamped on the clamping plates 36 on both sides, and clamping is achieved under the squeezing action of the return spring 35. The vertical frame 1 is driven to rotate by the motor, and under the action of the motor, it achieves a reciprocating rotation process in both forward and reverse directions. The sleeved horizontal part 31 also rotates, and the horizontal part 31 is subjected to inertia, causing the inner layer 311 to move to both sides, so that the inner abutment block 1 312 and the inner abutment block 2 314 on both sides can cooperate respectively. Each time the inner layer 311 slides, the inner abutment block 1 312 and the inner abutment block 2 314 cooperate, and the inner abutment block 1 312 will slide along the inclined surface of the inner abutment block 2 314, so that the horizontal part 31 rotates at a certain angle. Then the clamped workpiece 4 also rotates, and the outer wall of the workpiece 4 can be aligned with the nozzle of the sandblasting machine, so that the outer wall of the workpiece 4 can be treated relatively evenly. While treating multiple sides of the workpiece 4, it can also maintain the treated surfaces to a certain extent. Secondly, the longitudinal connecting body 323 is pulled outward so that the spherical part of the metal mating end 324 is engaged with the opening of the mating hole 322. Then, the clamping plate 36 clamps the workpiece body 4. Similarly, the other longitudinal parts 32 are also engaged with the spherical part of the metal mating end 324 and the opening of the mating hole 322. The workpiece body 4 is then clamped. Since the transverse part 31 is cylindrical, there must be a certain angle between the connected longitudinal parts 32. The outer side of the longitudinal part 32 is clamped and limited. This makes the spherical part of the metal mating end 324 engaged with the opening of the mating hole 322, preventing the metal mating end 324 from extending back into the mating hole 322. During the reciprocating rotation of the vertical frame 1, the workpiece body 4 is subjected to inertia, and the axial part of the metal mating end 324 tilts to one side, causing the workpiece body 4 to tilt. This allows the side of the workpiece body 4 to be processed relatively, thus reducing the rework of the workpiece body 4. Adjust the position of the abutment 5 so that the abutment 5 supports the workpiece 4, thereby limiting the workpiece 4. It is difficult for the workpiece 4 to move during the reciprocating motion of the transverse part 31, and it is suitable for processing workpieces 4 on one side.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A limiting mechanism for a sandblasting machine capable of changing the state of a metal workpiece, characterized in that: include A vertical frame (1) is fitted with a motor at its lower end; An annular limiting ring (2) is fitted onto the vertical frame (1) and is fixedly positioned with the vertical frame (1); The clamping unit (3) is sleeved on the annular limiting ring (2). The clamping unit (3) clamps the workpiece body (4). The clamping unit (3) includes a horizontal part (31) and a vertical part (32). The horizontal part (31) is subjected to the force of the reciprocating rotation of the vertical frame (1) to generate local rotation. The vertical part (32) is telescopic and can tilt after extending outward. The transverse part (31) is tubular and is fitted on the annular limiting ring (2). An inner layer (311) is fixed on the inner wall of the transverse part (31). Both ends of the inner layer (311) are fixed with circumferentially distributed inner blocks (312). The ends of the inner blocks (312) are rounded. Both ends of the horizontal part (31) are fitted with limiting sleeves (313). The limiting sleeves (313) are fixedly fitted on the annular limiting ring (2). One end of the limiting sleeve (313) facing the inside of the horizontal part (31) is integrally formed with two inner abutting blocks (314) in a circle. The inner abutting block one (312) and the inner abutting block two (314) are configured to cooperate. When the vertical frame (1) reciprocates, the horizontal part (31) slides to both sides, driving the inner abutting block one (312) and the inner abutting block two (314) to cooperate, thereby realizing the rotation of the horizontal part (31). The first inner abutment block (312) is straight, the second inner abutment block (314) is triangular, and one side of the second inner abutment block (314) is inclined, while the other side is straight. The two inner abutment blocks (314) are staggered. When the inner abutment block 1 (312) on one side is subjected to force and slides along the inclined surface of the inner abutment block 2 (314) on one side to the bottom, the extension line of the inner abutment block 1 (312) on the other side contacts the inclined surface of the inner abutment block 2 (314) on the other side. The longitudinal section (32) is provided in multiple sets, all of which are distributed on the outside of the transverse section (31) for clamping the workpiece body (4).

2. The sandblasting machine limiting mechanism for changing the state of a metal workpiece according to claim 1, characterized in that: The annular limiting ring (2) has a cylindrical cross-section and consists of multiple cylindrical sections joined together in straight lines.

3. The sandblasting machine limiting mechanism for changing the state of a metal workpiece according to claim 1, characterized in that: The longitudinal portion (32) includes a longitudinal connector one (321) and a longitudinal connector two (323). The longitudinal connector (321) is fixed on the outside of the transverse part (31). The outer end of the longitudinal connector (321) is provided with a mating hole (322), and the opening of the mating hole (322) is constricted. One end of the second longitudinal connector (323) contacts the first longitudinal connector (321), and the end of the second longitudinal connector (323) in contact is fixed with a metal mating end (324). The end of the metal mating end (324) is spherical and extends into the mating hole (322). The middle of the metal mating end (324) is shaft-shaped, and the diameter of the shaft-shaped part is smaller than the diameter of the spherical part. The diameter of the shaft-shaped part of the metal mating end (324) gradually increases outward, and the outermost diameter is engaged with the opening of the mating hole (322). The longitudinal connector (323) is stretched outward, and the axial part of the metal mating end (324) is disconnected from the opening of the mating hole (322), so that the longitudinal connector (323) can be tilted.

4. The sandblasting machine limiting mechanism for changing the state of a metal workpiece according to claim 3, characterized in that: An outer support plate (33) is fixed to the outer side of the longitudinal connecting body 2 (323). A sliding groove (34) is provided on the outer support plate (33). A reset spring (35) is fixed in the sliding groove (34). A clamping plate (36) is fixed to the end of the reset spring (35). The lower part of the clamping plate (36) is I-shaped and clamps the outer support plate (33).

5. The sandblasting machine limiting mechanism for changing the state of a metal workpiece according to claim 4, characterized in that: The clamping plate (36) extends in a straight line from the inside to the outside, and then extends outward at an angle.

6. The sandblasting machine limiting mechanism for changing the state of a metal workpiece according to claim 4, characterized in that: The vertical frame (1) is provided with a stop plate (5) that slides along the axis. The stop plate (5) can be locked to the vertical frame (1) by bolts. The upper end of the stop plate (5) is used to support the workpiece body (4) and to keep the axial part of the metal mating end (324) from mating with the opening of the mating hole (322).

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