Limiting device for workpiece

Abstract

The utility model relates to the technical field of jigs, in particular to a workpiece limiting device which comprises a base, vertical frame sets are fixedly installed on the left side and the right side of the upper end face of the base respectively, limiting frame sets are fixedly installed on the front side and the rear side of the upper end face of the base respectively, and the two limiting frame sets are fixed to the two sides of the vertical frame sets respectively. When the device is used, the first screw rod is meshed with the first threaded hole in the vertical frame plate in a threaded mode, the first screw rod limits the left-right position where a workpiece is pushed, and then the second threaded hole is meshed with the second screw rod in a threaded mode. A first movable hole is formed in the first movable hole, a female base plate is controlled by a sliding sleeve rod to freely slide in the first movable hole so as to directionally move on a second screw, then the female base plate drives a triangular pressing plate to move back and forth, a limiting foundation is provided for the front-back position of a workpiece, meanwhile, a third screw is rotated, and the third screw is engaged with an internal thread of a third threaded hole in a C-shaped plate; and therefore, the third screw rod clamps and limits the end of the workpiece in the front-back direction, and it is guaranteed that the workpiece is clamped stably.

Description

Technical Field

[0001] The utility model relates to the technical field of jigs, in particular to a workpiece limiting device. Background Art

[0002] Generally speaking, when machining mechanical parts, fixtures are required to prevent deviations during the production process that could affect the workpiece quality. Especially for C-shaped workpieces or those with angled corners, a good and complete fixture is needed to secure them in all directions, ensuring smooth milling of the workpiece surface. Utility Model Content

[0003] Those skilled in the art have provided a workpiece limiting device to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the utility model provides a workpiece limiting device, comprising a base, wherein vertical frame groups are fixedly installed on the left and right sides of the upper end surface of the base, and limiting frame groups are fixedly installed on the front and rear sides of the upper end surface of the base, the two limiting frame groups are respectively fixed on both sides of the vertical frame group, and the limiting device is fixedly installed on the upper end of the vertical frame group, and the limiting device is fixedly installed on the top of the limiting frame group by bolts;

[0005] The stand assembly includes a stand plate, a first threaded hole, and a first screw. The stand plate is fixed to the upper end of the mounting base by bolts. Two first threaded holes are provided in the middle of the stand plate. First screws are provided in the first threaded holes. The first screws are engaged with the first threaded holes, and the first screws are passed through the stand plate to press and adjust the position of the workpiece.

[0006] The two guide rails are connected with each other to form a circle, and the two guide rails are connected with each other to form a circle, and the two guide rails are connected with each other to form a circle.

[0007] The limiting device includes a C-shaped plate, a C-shaped bayonet, a third threaded hole, an avoidance slot, a third screw, a bolt fixing hole and a laser rangefinder. A C-shaped bayonet is provided in the middle of the C-shaped plate on the side close to the workpiece. The C-shaped bayonet is convenient for the placement of the workpiece. A third threaded hole running through the front and back is provided in the middle of the wall side of the C-shaped bayonet. A third screw is provided in the third threaded hole. The third screw is engaged with the internal thread of the third threaded hole on the C-shaped plate, so that the third screw can clamp and limit the workpiece in the front and back directions.

[0008] In a preferred embodiment, a plurality of supporting plates are equidistantly arranged in the middle of the upper end of the base, the supporting plates are fixed to the base with bolts, and the plurality of supporting plates are used to support the workpiece.

[0009] In a preferred embodiment: a cylinder is provided on one side of the two stand groups close to the support plate, the cylinder is fixed on the base by bolts, and limit positions are provided corresponding to the workpiece and the upper end of the cylinder, so that the workpiece is positioned and installed on the base.

[0010] In a preferred embodiment: right-angle plates are fixedly installed on both sides of the seat plate, the two right-angle plates are symmetrically arranged on the left and right sides, and a fixed plate is fixedly installed on the middle part of one side of the right-angle plate close to the support plate, and the fixed plate and the right-angle plate are fixed to the base with bolts.

[0011] In a preferred embodiment: an avoidance slot is provided on the wall side of the C-shaped bayonet, and a milling cutter processing the workpiece is avoided through the avoidance slot to prevent damage to the C-shaped plate during the cutting process.

[0012] In a preferred embodiment: a bolt fixing hole is opened in the middle of the upper end of the C-shaped plate, and the laser rangefinder is fixed on the C-shaped plate by passing the bolt through the bolt fixing hole. The laser probe on the laser rangefinder is used to measure the offset angle of the workpiece, and the third screw is adjusted through data feedback.

[0013] Compared with the existing technology, the technical solution of the utility model has the following beneficial effects:

[0014] 1. When the present invention is used, the first screw is threadedly engaged with the first threaded hole on the stand plate, and the first screw will push the workpiece to a limit position on the left and right. Then, the second threaded hole is threadedly engaged with the second screw, and the mother plate will be restricted in rotation by the sliding rod and the first movable hole, so that the mother plate is subject to the sliding rod to slide freely in the first movable hole and thus move directionally on the second screw. Then, the mother plate drives the triangular pressure plate to move back and forth, providing a limiting basis for the front and rear position of the workpiece, and at the same time, the third screw is rotated, and the third screw is threadedly engaged with the internal thread of the third threaded hole on the C-shaped plate, so that the third screw limits the front and rear clamping of the workpiece end, and finally the cylinder is started and locked with the workpiece, thereby preventing the workpiece from offsetting during the processing and ensuring the stable clamping of the workpiece.

[0015] 2. When the utility model is used, the laser probe on the laser rangefinder is used to measure the offset angle of the workpiece, and the third screw is adjusted through data feedback, so that the workpiece can be adjusted and clamped accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram provided by this application;

[0017] Figure 2 It is a structural diagram of the stand assembly provided by this application;

[0018] Figure 3 It is a structural diagram of the limit frame group provided by this application;

[0019] Figure 4 It is a structural diagram of the limiting device provided by this application;

[0020] In the figure: 1. Base; 2. Stand assembly; 3. Limiting frame assembly; 4. Limiting device; 5. Workpiece; 6. Cylinder; 7. Support plate;

[0021] 21. Stand plate; 22. First threaded hole; 23. First screw;

[0022] 31. Right-angle plate; 32. Seat plate; 34. Fixed plate; 35. First movable hole; 36. Second movable hole; 37. Female seat plate; 38. Second threaded hole; 39. Sliding rod; 310. Second screw rod; 311. Limit sleeve; 312. Limit block; 313. Triangular pressure plate;

[0023] 41. C-shaped plate; 42. C-shaped bayonet; 43. Third threaded hole; 44. Avoidance slot; 45. Bolt fixing hole; 46. Laser rangefinder. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connection" can be a wall-mounted 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 components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0027] See also Figures 1 to 4 In this embodiment, a workpiece limiting device is provided, including a base 1, a vertical frame group 2 is fixedly installed on the left and right sides of the upper end surface of the base 1, and a limiting frame group 3 is fixedly installed on the front and rear sides of the upper end surface of the base 1. The two limiting frame groups 3 are respectively fixed on both sides of the vertical frame group 2, and a plurality of supporting plates 7 are equidistantly provided at the middle part of the upper end of the base 1. The supporting plates 7 are fixed to the base 1 with bolts. A cylinder 6 is provided on one side of the two vertical frame groups 2 close to the supporting plates 7. The cylinder 6 is fixed to the base 1 with bolts. The multiple supporting plates 7 are used to lift the workpiece 5. The workpiece 5 and the upper end of the cylinder 6 are correspondingly set with limit positions, so that the workpiece 5 is positioned and installed on the base 1. A limiting device 4 is fixedly installed on the upper end of the vertical frame group 2, and the limiting device 4 is fixed to the top of the limiting frame group 3 with bolts;

[0028] The stand assembly 2 includes a stand plate 21, a first threaded hole 22, and a first screw 23. The stand plate 21 is fixed to the upper end of the base 1 by bolts. Two first threaded holes 22 are provided in the middle of the stand plate 21. First screws 23 are provided in the first threaded holes 22. The first screws 23 are engaged with the first threaded holes 22, and the first screws 23 are passed through the stand plate 21 to press and adjust the position of the workpiece 5.

[0029] The limiting frame group 3 includes a right-angle plate 31, a seat plate 32, a fixed plate 34, a first movable hole 35, a second movable hole 36, a female seat plate 37, a second threaded hole 38, a sliding rod 39, a second screw 310, a limiting sleeve 311, a limiting block 312 and a triangular pressure plate 313. The left and right sides of the seat plate 32 are fixedly installed with right-angle plates 31, and the two right-angle plates 31 are symmetrically arranged. The fixing plate 34 is fixedly installed in the middle of the right-angle plate 31 on the side of the supporting plate 7. The fixing plate 34 and the right-angle plate 31 are fixed to the base 1 with bolts. Two first movable holes 35 running through the front and back are provided on the seat plate 32. The two first movable holes 35 are symmetrically arranged. A second movable hole 36 running through the front and back is provided in the middle of the seat plate 32. A limiting sleeve 311 is provided in the second movable hole 36. When the workpiece 5 is in the working state, the upper and lower parts of the tool 5 are tightened and the lower parts are tightened, so that the tool 5 can be tightened and the screw thread 320 can be tightened.

[0030] The limiting device 4 includes a C-shaped plate 41, a C-shaped bayonet 42, a third threaded hole 43, an avoidance notch 44, a third screw 45, a bolt fixing hole 46 and a laser rangefinder 47. The C-shaped plate 41 is provided with a C-shaped bayonet 42 in the middle of the side close to the workpiece 5. The C-shaped bayonet 42 is convenient for the placement of the workpiece 5. A third threaded hole 43 is provided in the middle of the wall side of the C-shaped bayonet 42, which runs through the front and back. A third screw 45 is provided in the third threaded hole 43. The third screw 45 is engaged with the inner thread of the third threaded hole 43 on the C-shaped plate 41, thereby making the third screw The three screws 45 are used to clamp and limit the workpiece 5 in the front and rear directions. An avoidance slot 44 is provided on the wall side of the C-shaped bayonet 42. The milling cutter used to process the workpiece 5 is avoided through the avoidance slot 44 to prevent damage to the C-shaped plate 41 during the cutting process. A bolt fixing hole 46 is provided in the middle of the upper end of the C-shaped plate 41. The laser rangefinder 47 is fixed to the C-shaped plate 41 by inserting the bolt fixing hole 46 through the bolt limiter. The laser probe on the laser rangefinder 47 is used to measure the offset angle of the workpiece 5, and the third screw 45 is adjusted through data feedback.

[0031] The working principle of this utility model is:

[0032] When the present invention is used, the workpiece 5 is placed on the support plate 7, and the first screw rod 23 is rotated so that the first screw rod 23 is threadedly engaged with the first threaded hole 22 on the stand plate 21. The first screw rod 23 pushes the workpiece 5 to the left and right positions for limiting. Then, the second screw rod 310 is rotated so that the second screw rod 310 is threadedly engaged with the second screw rod 310 through the second threaded hole 38. The mother plate 37 is restricted in rotation by the sliding rod 39 and the first movable hole 35, so that the mother plate 37 is constrained by the sliding rod 39 to slide freely in the first movable hole 35, thereby moving directionally on the second screw rod 310. Then the base plate 37 drives the triangular pressure plate 313 to move back and forth, providing a limiting basis for the front and rear positions of the workpiece 5, and at the same time rotates the third screw 45, and the third screw 45 is engaged with the internal thread of the third threaded hole 43 on the C-shaped plate 41, so that the third screw 45 can clamp and limit the end of the workpiece 5 in the front and rear directions, and use the laser probe on the laser rangefinder 47 to measure the offset angle of the workpiece 5, and adjust the third screw 45 through data feedback. At this time, start the cylinder 6 and the workpiece 5 to limit and lock, so as to prevent the workpiece 5 from offsetting during the processing.

[0033] The above is only a preferred specific implementation method of the present invention, but the design concept of the present invention is not limited to this. Any technician familiar with the technical field who uses this concept to make non-substantial changes to the present invention within the technical scope disclosed by the present invention shall be deemed to infringe the protection scope of the present invention.

Claims

1. A workpiece limiting device, comprising a base (1), characterized in that: The left and right sides of the upper end surface of the base (1) are fixedly mounted with a vertical frame group (2); the front and rear sides of the upper end surface of the base (1) are fixedly mounted with a limit frame group (3); the two limit frame groups (3) are respectively fixed on both sides of the vertical frame group (2); a limit device (4) is fixedly mounted on the upper end of the vertical frame group (2); the limit device (4) is fixedly mounted on the top of the limit frame group (3) by bolts; The stand assembly (2) comprises a stand plate (21), a first threaded hole (22) and a first screw (23); the stand plate (21) is fixed to the upper end of the mounting base (1) by means of bolts; two first threaded holes (22) passing through the middle of the stand plate (21) are provided, and the first screw (23) is provided in the first threaded hole (22); The limiting frame assembly (3) comprises a right-angle plate (31), a seat plate (32), a fixing plate (34), a first movable hole (35), a second movable hole (36), a female seat plate (37), a second threaded hole (38), a sliding rod (39), a second screw rod (310), a limiting sleeve (311), a limiting block (312) and a triangular pressure plate (313). The seat plate (32) is provided with two first movable holes (35) that pass through the front and back, and the two first movable holes (35) are symmetrically arranged. The middle part of the seat plate (32) is provided with a second movable hole (36) that passes through the front and back, and a second movable hole (36) is provided inside. A limiting sleeve (311) is provided, one end of the limiting sleeve (311) passes through the second movable hole (36) and is bolted to the fixed limiting block (312), the other end of the limiting sleeve (311) is bolted to the fixed second screw rod (310), a female seat plate (37) is sleeved on the second screw rod (310), a second threaded hole (38) is opened on the female seat plate (37), two sliding rods (39) are fixedly installed on one side of the female seat plate (37) close to the seat plate (32), the sliding rods (39) and the seat plate (32) are arranged to slide correspondingly, and the sliding rods (39) pass through the first movable hole (35) and are bolted to the fixed triangular pressure plate (313); The limiting device (4) comprises a C-shaped plate (41), a C-shaped bayonet (42), a third threaded hole (43), an avoidance notch (44), a third screw (45), a bolt fixing hole (46) and a laser rangefinder (47). The C-shaped plate (41) is provided with a C-shaped bayonet (42) in the middle of a side close to the workpiece (5), a third threaded hole (43) penetrating front and back is provided in the middle of a wall side of the C-shaped bayonet (42), and a third screw (45) is provided in the third threaded hole (43).

2. A workpiece limiting device according to claim 1, characterized in that: A plurality of supporting plates (7) are equidistantly arranged at the middle of the upper end of the base (1); the supporting plates (7) are fixed to the base (1) by bolts; and the plurality of supporting plates (7) are used to support the workpiece (5).

3. A workpiece limiting device according to claim 2, characterized in that: The two stand groups (2) are both provided with a cylinder (6) on one side of the support plate (7). The cylinder (6) is fixedly mounted on the base (1) by bolts, and the workpiece (5) and the upper end of the cylinder (6) are correspondingly provided with limit stops.

4. A workpiece limiting device according to claim 3, characterized in that: The left and right sides of the seat plate (32) are both fixedly mounted with right-angle plates (31), and the two right-angle plates (31) are symmetrically arranged on both sides. A fixing plate (34) is fixedly mounted on the middle part of one side of the right-angle plate (31) close to the supporting plate (7), and the fixing plate (34) and the right-angle plate (31) are both fixedly mounted on the base (1) by bolts.

5. A workpiece limiting device according to claim 1, characterized in that: An avoidance notch (44) is provided on the wall side of the C-shaped bayonet (42).

6. A workpiece limiting device according to claim 1, characterized in that: A bolt fixing hole (46) is provided in the middle of the upper end of the C-shaped plate (41), and a laser rangefinder (47) is fixed on the C-shaped plate (41) by passing a bolt through the bolt fixing hole (46).

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