CN211305754U

CN211305754U - Internal grinding machine of high security

Info

Publication number: CN211305754U
Application number: CN201922151191.2U
Authority: CN
Inventors: 方泽; 董迪; 彭龙
Original assignee: Shaanxi Rio Tinto Heavy Industry Machinery Co ltd
Current assignee: Shaanxi Rio Tinto Heavy Industry Machinery Co ltd
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2020-08-21
Anticipated expiration: 2029-12-05

Abstract

The utility model relates to a high-safety internal grinder, which comprises a grinder frame, wherein a working cavity is arranged on the long edge of one side of the grinder frame along the width direction, telescopic holes are arranged on the upper surface of the grinder frame along the length direction, the telescopic holes are respectively communicated with the working cavity, a protective component is arranged in the working cavity relatively, the protective component comprises a protective plate and a connecting rod, the elevator, driving screw and driving piece, offer along its length direction on the connecting rod and supply the guard plate downside to inlay the mounting groove of establishing, the part fixed connection of elevator upper surface in the lower surface of connecting rod, the elevator stretches out the vertical screw hole that has seted up that runs through of part of connecting rod, driving screw's one end is connected in the driving piece, driving screw keeps away from the one end of driving piece and passes and threaded connection in the lifting thread downthehole, the guard plate slides in the flexible downthehole, the driving piece can be dismantled the working chamber bottom of connecting on the grinding machine frame. The utility model discloses have the effect that reduces the potential safety hazard, improve the security.

Description

Internal grinding machine of high security

Technical Field

The utility model belongs to the technical field of the technique of machining equipment and specifically relates to an internal grinding machine of high security is related to.

Background

An internal grinding machine is a machining apparatus for grinding the inner circular surface of a workpiece and the end face thereof.

Chinese patent with publication number CN203317159U discloses an internal grinding machine, which comprises a grinding bed frame, a feeding box and a headstock arranged on the grinding bed frame, wherein a grinding wheel spindle is arranged on the feeding box, a clamping mechanism is arranged on one side of the headstock, which is right opposite to the feeding box, a protective cover is arranged on the periphery of the clamping mechanism, a first opening allowing the end part of the grinding wheel spindle to pass through is arranged on one side of the protective cover, which is opposite to the grinding wheel spindle, a spray pipe is further arranged on the protective cover, a water outlet of the spray pipe is arranged inside the protective cover, and a water inlet of the spray pipe is arranged outside the protective cover. The internal grinding machine is characterized in that a workpiece to be machined is clamped on the clamping mechanism firstly, then the power supply is started, and then the fixed grinding wheel rotating at a high speed gradually grinds the end face or the inner circular surface of the workpiece to be machined under the feeding of the feeding box.

The above prior art solutions have the following drawbacks: however, in the prior art, an operator needs to monitor the whole process during the machining process, and once the operator does not firmly clamp the workpiece to be machined in the process of clamping the workpiece to be machined, the fixed grinding wheel rotating at a high speed flies away when contacting the workpiece to be machined, so that the operator on one side is injured, and therefore the prior art has great potential safety hazards and needs to be improved.

Disclosure of Invention

Not enough to prior art exists, one of the purposes of the utility model is to provide an internal grinding machine of high security has the advantage that reduces the potential safety hazard, improves the security.

The above object of the present invention is achieved by the following technical solutions:

an internal grinding machine with high safety comprises a grinding bed frame, wherein a feeding box and a headstock are respectively arranged on the upper surface of the grinding bed frame, a working cavity is formed in the long edge of one side of the grinding bed frame in a penetrating mode along the width direction of the grinding bed frame, telescopic holes are oppositely formed in the upper surface of the grinding bed frame along the length direction of the grinding bed frame, the telescopic holes are respectively communicated with the working cavity relatively, a protection assembly is oppositely arranged in the working cavity and comprises a protection plate, a connecting rod, a lifting block, a driving screw rod and a driving piece, a mounting groove for embedding the lower side of the protection plate is formed in the connecting rod along the length direction of the connecting rod, the part of the upper surface of the lifting block is fixedly connected to the lower surface of the connecting rod, a lifting threaded hole is vertically formed in the part of the lifting block extending out of the connecting rod in a penetrating mode, one, the guard plate slides in the telescopic hole, and the driving piece can be detachably connected to the bottom of the working cavity on the grinding bed frame.

By adopting the technical scheme, an operator starts the driving piece to drive the driving screw to rotate, so that the lifting block in threaded connection with the driving screw is driven to move up and down, and meanwhile, the connecting rod fixed with the lifting block can drive the protection plate to ascend or descend; before the workpiece to be machined is ground, an operator can lift the protection plate to prevent the flying workpiece to be machined from hitting the body of the operator to cause injury; after the processing is finished, the protective plate can be lowered into the working cavity by an operator, so that unnecessary interference on the workpiece clamped by the operator due to the erected protective plate is avoided.

Furthermore, the two ends of the lower surface of the connecting rod are respectively and fixedly connected with a guide block, guide holes are respectively vertically arranged on the guide blocks in a penetrating mode, a guide rod is arranged in the working cavity relatively, the lower end of the guide rod is respectively and fixedly connected to the bottom of the working cavity in the grinding bed frame, and the upper end of the guide rod penetrates through the guide holes.

Through adopting above-mentioned technical scheme, the connecting rod can reciprocate along the guide bar, just so can prevent that elevator and drive screw thread fit from when, because of the friction between the screw thread pair takes place to rotate, so restricted the rotation of guard plate, improved stability.

Furthermore, the upper end of the driving screw, which is far away from the driving piece, is provided with a limiting plate, the limiting plate is provided with a locking bolt, and the locking bolt penetrates through the limiting plate and is in threaded connection with the upper end of the driving screw.

Through adopting above-mentioned technical scheme, the setting of limiting plate has avoided the elevator rebound and breaks away from drive screw, has consequently improved stability.

Furthermore, one side of the limiting plate close to the driving screw is fixedly connected with a first elastic cushion.

Through adopting above-mentioned technical scheme, the loss that causes when first cushion has reduced the elevator and has directly collided with the limiting plate has consequently prolonged the life of elevator and limiting plate.

Furthermore, the upper side of the limiting plate is provided with a spring washer, and the head of the locking bolt is tightly propped against the spring washer.

Through adopting above-mentioned technical scheme, after the head of locking bolt flattens spring washer, spring washer can produce a elasticity that lasts, makes locking bolt and drive screw's threaded connection pair keep a frictional force, produces the resistance moment to play and prevented not hard up effect between locking bolt and the drive screw.

Furthermore, a protection ring is fixedly connected to the outer side wall of the driving screw rod, and the lifting block is located between the protection ring and the limiting plate.

Through adopting above-mentioned technical scheme, the setting of protection ring has avoided the elevator to move down and has strikeed mutually with the driving piece, has consequently prolonged the life of driving piece.

Furthermore, a second elastic pad is fixedly connected to the upper surface of the protection ring.

By adopting the technical scheme, the second elastic pad reduces the loss caused when the lifting block directly collides with the protection ring, thereby prolonging the service life of the lifting block and the protection ring.

Furthermore, the openings at the two ends of the grinding bed frame positioned in the working cavity are respectively detachably connected with a cover plate.

Through adopting above-mentioned technical scheme, the setting of apron has avoided operating personnel to touch the mistake of work intracavity structure and cause the damage.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the protective assembly is arranged, so that an operator can start the driving piece to drive the driving screw to rotate, the lifting block in threaded connection with the driving screw is driven to move up and down, and meanwhile, the connecting rod fixed with the lifting block can drive the protective plate to ascend or descend; before the workpiece to be machined is ground, an operator can lift the protection plate to prevent the flying workpiece to be machined from hitting the body of the operator to cause injury; after the processing is finished, the protective plate can be lowered into the working cavity by an operator, so that unnecessary interference on the workpiece clamped by the operator due to the erected protective plate is avoided.

2. The setting of guide bar for the connecting rod can reciprocate along the guide bar, just so can prevent that elevator and drive screw thread fit from when, because of the friction between the screw thread pair takes place to rotate, so restricted the rotation of guard plate, improved stability.

Drawings

Fig. 1 is a schematic structural view of an entire internal grinding machine for embodying a high safety;

FIG. 2 is a schematic structural view for embodying a shield assembly;

fig. 3 is a schematic structural diagram for embodying a stopper plate.

Reference numerals: 1. grinding the bed frame; 11. a feed box; 12. a headstock; 13. a working chamber; 14. a telescopic hole; 2. a cover plate; 3. a guard assembly; 31. a protection plate; 32. a connecting rod; 321. mounting grooves; 33. a lifting block; 331. a lifting threaded hole; 34. a drive screw; 341. a guard ring; 3411. a second elastic pad; 35. a drive member; 4. a limiting plate; 41. a first elastic pad; 5. a spring washer; 6. locking the bolt; 7. a guide block; 71. a guide hole; 8. a guide rod.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a high security internal grinding machine, including grinding bed frame 1, the upper surface of grinding bed frame 1 is provided with feed box 11 and headstock 12 respectively, and feed box 11 is used for the clamping emery wheel, and headstock 12 is used for the clamping to wait to process the work piece. The long edge of one side of the grinding bed frame 1 horizontally penetrates along the width direction thereof and is provided with a working cavity 13, the upper surface of the grinding bed frame 1 is vertically and oppositely provided with telescopic holes 14 along the length direction thereof, the telescopic holes 14 in the embodiment are strip-shaped holes, and the opposite telescopic holes 14 are respectively communicated with the working cavity 13. The grinding bed frame 1 is arranged at the openings at the two ends of the working cavity 13 and is detachably connected with the cover plates 2 through bolts respectively, so that the damage caused by the mistaken touch of an operator on the structure in the working cavity 13 is avoided.

Referring to fig. 2, the protection assembly 3 is oppositely disposed in the working chamber 13, and the protection assembly 3 includes a protection plate 31, a connection rod 32, a lifting block 33, a driving screw 34, and a driving member 35. Guard plate 31 slides from top to bottom in telescopic hole 14, and operating personnel just can be like this the utility model discloses before starting, move up guard plate 31 and keep apart the space that operating personnel stood with the utility model discloses the space of processing. The utility model discloses what well guard plate 31 chooseed for use is toughened glass, has both guaranteed the intensity of guard plate 31, can satisfy the demand of operating personnel monitoring again.

Referring to fig. 2 and 3, the connecting rod 32 is provided with an installation groove 321 along the length direction thereof for embedding the lower side of the protection plate 31, and after the protection plate 31 is embedded in the installation groove 321, glass cement is injected into the installation groove 321 to fix the protection plate 31. The upper surface of the part of the lifting block 33 is fixed on the middle position of the lower side of the connecting rod 32 departing from the protection plate 31 by welding, a lifting threaded hole 331 is vertically formed in the part of the lifting rod extending out of the connecting rod 32 in a penetrating mode, and the upper end of the driving screw 34 penetrates through and is in threaded connection with the lifting threaded hole 331. The upper end of the driving screw 34 is provided with a limiting plate 4, one side of the limiting plate 4 close to the driving screw 34 is adhered with a first elastic pad 41 by glue, and in this embodiment, the first elastic pad 41 is a rubber pad with high elasticity. A spring washer 5 is arranged on one side, away from the driving screw 34, of the limiting plate 4, a locking bolt 6 is arranged on the limiting plate 4, the locking bolt 6 sequentially penetrates through the spring washer 5 and the limiting plate 4 and is in threaded connection with the driving screw 34, and after the locking bolt 6 is locked, the end portion of the locking bolt abuts against the spring washer 5.

Referring to fig. 2 and 3, a protection ring 341 is fixed to an outer side wall of the drive screw 34 by welding, and the elevating block 33 is threadedly coupled between a stopper of the drive screw 34 and the protection ring 341. The upper surface of the protection ring 341 is adhered with a second elastic pad 3411 by glue, and in this embodiment, the second elastic pad 3411 is a rubber pad with high elasticity. The lower end of the driving screw 34 is connected to a driving member 35, in this embodiment, the driving member 35 is an internal insertion motor, and the lower end of the driving screw 34 is inserted into the output end of the driving member 35. The driving member 35 is detachably attached to the bottom of the working chamber 13 of the grinding bed frame 1 by bolts.

Referring to fig. 2, the guide blocks 7 are fixed to both ends of the lower surface of the connecting rod 32 by welding, and guide holes 71 are vertically formed through the portions of the guide blocks 7 extending out of the connecting rod 32. The working chamber 13 is internally and oppositely provided with a guide rod 8, the lower end of the guide rod 8 is fixed at the bottom of the working chamber 13 on the grinding bed frame 1 by welding, and the upper end of the guide rod 8 vertically passes through a guide hole 71 on the guide block 7, thereby providing a guide function for the up-and-down movement of the connecting rod 32.

The implementation principle of the embodiment is as follows:

after the workpiece to be processed is clamped, starting the driving part 35, and driving the driving screw 34 to rotate by the driving part 35; the screw rod 34 is driven to rotate to drive the lifting block 33 in threaded connection with the screw rod to ascend; the lifting block 33 rises to drive the connecting rod 32 fixed with the lifting block to move upwards along the guide rod 8 until the lifting block 33 contacts with the first elastic pad 41 on the lower side of the limit plate 4 and stops; at this time, the shielding plate 31 is erected upward from the inside of the telescopic hole 14 on both sides of the feed box 11 and the headstock 12.

After the grinding of the workpiece to be processed is finished, the driving piece 35 is started again, and the driving piece 35 rotates reversely to drive the driving screw 34 to rotate reversely; the driving screw 34 rotates to drive the lifting block 33 in threaded connection with the driving screw to descend; the descending of the lifting block 33 drives the connecting rod 32 fixed with the lifting block to move downwards along the guide rod 8 until the lifting block 33 contacts with the second elastic pad 3411 on the upper side of the protection ring 341 and stops; at this time, the protection plate 31 is retracted downwards from the telescopic hole 14 to the working chamber 13.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A high-safety internal grinding machine comprises a grinding bed frame (1), wherein a feeding box (11) and a headstock (12) are respectively arranged on the upper surface of the grinding bed frame (1), and the high-safety internal grinding machine is characterized in that: a working cavity (13) is formed in the long edge of one side of the grinding bed frame (1) in a penetrating mode along the width direction of the grinding bed frame, telescopic holes (14) are formed in the upper surface of the grinding bed frame (1) in a relatively opened mode along the length direction of the grinding bed frame, the telescopic holes (14) are communicated with the working cavity (13) relatively, a protection component (3) is arranged in the working cavity (13) relatively, the protection component (3) comprises a protection plate (31), a connecting rod (32), a lifting block (33), a driving screw rod (34) and a driving piece (35), a mounting groove (321) for embedding the lower side of the protection plate (31) is formed in the connecting rod (32) along the length direction of the connecting rod, the part of the upper surface of the lifting block (33) is fixedly connected to the lower surface of the connecting rod (32), a lifting threaded hole (331) is vertically formed in the part, extending out of the connecting rod (32), one end of the driving screw rod (34) far away from the driving piece (35) penetrates through the lifting threaded hole (331) and is in threaded connection with the lifting threaded hole, the protection plate (31) slides in the telescopic hole (14), and the driving piece (35) is detachably connected to the bottom of the working cavity (13) on the grinding bed frame (1).

2. The internal grinding machine of claim 1, which is high in safety, characterized in that: the two ends of the lower surface of the connecting rod (32) are fixedly connected with guide blocks (7) respectively, guide holes (71) are vertically arranged on the guide blocks (7) in a penetrating mode respectively, guide rods (8) are oppositely arranged in the working cavities (13), the lower ends of the guide rods (8) are fixedly connected to the bottoms of the working cavities (13) in the grinding bed frame (1) respectively, and the upper ends of the guide rods (8) penetrate through the guide holes (71).

3. The internal grinding machine of claim 1, which is high in safety, characterized in that: the upper end of the driving screw rod (34) far away from the driving piece (35) is provided with a limiting plate (4), the limiting plate (4) is provided with a locking bolt (6), and the locking bolt (6) penetrates through the limiting plate (4) and is in threaded connection with the upper end of the driving screw rod (34).

4. A high-safety internal grinding machine according to claim 3, wherein: one side of the limiting plate (4) close to the driving screw (34) is fixedly connected with a first elastic pad (41).

5. A high-safety internal grinding machine according to claim 3, wherein: and a spring washer (5) is arranged on the upper side of the limiting plate (4), and the head of the locking bolt (6) is tightly propped against the spring washer (5).

6. The internal grinding machine of claim 1, which is high in safety, characterized in that: the outer side wall of the driving screw rod (34) is fixedly connected with a protection ring (341), and the lifting block (33) is located between the protection ring (341) and the limiting plate (4).

7. The internal grinding machine of claim 6, wherein: a second elastic pad (3411) is fixedly connected to the upper surface of the protection ring (341).

8. The internal grinding machine of claim 1, which is high in safety, characterized in that: the grinding bed frame (1) is positioned at the openings at the two ends of the working cavity (13) and is respectively detachably connected with a cover plate (2).