CN116141033B

CN116141033B - Workpiece clamping mechanism of exchange workbench

Info

Publication number: CN116141033B
Application number: CN202310410563.7A
Authority: CN
Inventors: 张越东; 杨爱菊; 刘云东; 杨锐; 宋大伟
Original assignee: Yantai Global Cnc Technology Co ltd; Yantai Universal Machine Tool Accessory Group Co ltd
Current assignee: Yantai Global Cnc Technology Co ltd; Yantai Universal Machine Tool Accessory Group Co ltd
Priority date: 2023-04-18
Filing date: 2023-04-18
Publication date: 2023-06-16
Anticipated expiration: 2043-04-18
Also published as: CN116141033A

Abstract

The invention belongs to the technical field of workpiece clamping and discloses a workpiece clamping mechanism of an exchange workbench, which comprises a workbench body, wherein a plurality of positioning holes are formed in the surface of the workbench body, a mounting hole is formed in the center of the workbench body, a motor is installed in the mounting hole, the output end of the motor is downward, the output end of the motor is fixedly connected with a gear, an adjusting structure is arranged on the lower surface of the workbench body, the adjusting structure comprises two adjusting plates, a plurality of clamping teeth are fixedly connected to one side of each adjusting plate opposite to the gear, the clamping teeth are meshed with the gear, a transverse plate is fixedly connected to one side of each adjusting plate, and an adjusting bolt is arranged on one side of each transverse plate in a penetrating manner.

Description

Workpiece clamping mechanism of exchange workbench

Technical Field

The invention belongs to the technical field of workpiece clamping, and particularly relates to a workpiece clamping mechanism of an exchange workbench.

Background

The exchange workbench is a machine tool workbench with higher efficiency, more than two workbenches are generally arranged, and the workbenches can slide along the guide rail under the drive of the driving device, so that when one of the workbenches is machined by a machine tool, a worker can clamp workpieces placed on the other workbenches, and then the two workbenches are exchanged by the driving device, so that the machining efficiency is improved.

The workpiece clamping mechanism on the existing workbench is generally driven by a hydraulic cylinder, the hydraulic cylinder consists of a cylinder body, an oil way pipeline and a hydraulic pump, and the hydraulic pump cannot move along with the exchange workbench due to the large volume of the hydraulic pump, so that when the exchange workbench exchanges and rotates, the hydraulic cylinder can drive the oil way pipeline to move correspondingly along with the exchange workbench, and an oil pipe is easily pulled or wound or even broken, although the prior art has a releasing means of the hydraulic cylinder, namely the hydraulic cylinder is released from a clamping piece after a clamping device is driven by the hydraulic cylinder to clamp a workpiece, so that the hydraulic cylinder is ensured not to be connected with the oil pipe together when the workbench moves, the releasing of the hydraulic cylinder means that an oil cylinder moving track is additionally required to be arranged, and the cost is increased; the workbench has errors when moving in the sliding rail, and the oil cylinder can not be accurately connected with and clamps the workpiece each time; in addition, the oil cylinder can vibrate at the moment of disengaging, and meanwhile, as the oil cylinder is not continuously supported, vibration can be generated when the workbench moves, so that the clamping stability of clamping a workpiece is affected.

Therefore, a workpiece clamping mechanism of an exchange workbench is provided to solve the problems.

Disclosure of Invention

The invention aims to provide a workpiece clamping mechanism of an exchange workbench, which aims to solve the problems in the background technology.

In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides a work piece clamping machine constructs of exchange workstation, includes the workstation body, a plurality of locating holes have been seted up on the surface of workstation body, the mounting hole has been seted up to the central point of workstation body, install the motor in the mounting hole, the output of motor is downwards, the output fixedly connected with gear of motor, the lower surface of workstation body is equipped with adjusting structure, adjusting structure includes two regulating plates, the regulating plate is for a plurality of latches of one side fixedly connected with of gear, the latch meshes with the gear mutually, one side fixedly connected with diaphragm of regulating plate, the adjusting bolt is worn to be equipped with in diaphragm one side, the arc surface threaded connection of adjusting bolt has the riser, the surface mounting of riser has the centre gripping subassembly.

Preferably, the clamping assembly comprises a sliding block, the sliding block is in sliding connection with the vertical plate, a sliding groove is formed in the surface of the vertical plate, two sides of the sliding block are in sliding connection with the sliding groove, the clamping plate is fixedly connected with the upper surface of the sliding block, two movable rods are fixedly connected with the inner wall of the sliding groove, the movable rods are in sliding connection with the sliding block and the clamping plate, springs are sleeved on the arc surfaces of the movable rods, two ends of each spring are fixedly connected with the sliding block and the vertical plate respectively, triangular blocks are fixedly connected to the two sides of the workbench body at positions close to the vertical plate, and jacking blocks are fixedly connected to the positions of the sliding block close to the triangular blocks and are abutted to the triangular blocks.

Preferably, one end of the clamping plate is fixedly connected with an L-shaped block.

Preferably, the L-shaped block is a stainless steel block.

Preferably, the arc surface of the adjusting bolt is in threaded connection with fastening nuts at two sides of the vertical plate, and the fastening nuts are in abutting connection with the vertical plate.

Preferably, a tension spring is fixedly connected to one side of the adjusting plate, opposite to the transverse plate, and one end of the tension spring is fixedly connected with the transverse plate.

Preferably, a plurality of limiting blocks are fixedly connected to the lower surface of the workbench body close to the adjusting plate, the limiting blocks are L-shaped, and the adjusting plate is in sliding connection with the limiting blocks.

Preferably, the lower surface mounting of workstation body has locating component, locating component includes four bracing pieces, the upper end and the workstation body fixed connection of bracing piece, the lower extreme fixedly connected with location section of thick bamboo of bracing piece, the inside of location section of thick bamboo is inserted and is equipped with the inserted bar, the lower extreme fixedly connected with drive plate of inserted bar, the lower extreme of drive plate passes through the chain and is connected with the movable rail.

Preferably, the inner wall fixedly connected with four fixed blocks of mounting hole, the inside of fixed block wears to be equipped with the bolt, the lower extreme and the motor threaded connection of bolt.

The beneficial effects of the invention are as follows:

1. according to the invention, through the arrangement of the adjusting structure, the motor arranged below the workbench body drives the gear to rotate, so that the two adjusting plates move towards the opposite positions or the opposite positions, and the two vertical plates are matched with the clamping assembly to clamp the workpiece on the workbench body.

2. According to the invention, through the arrangement of the clamping assembly, when the two vertical plates are driven by the motor to move towards the opposite directions, the jacking block abutting against the surface of the triangular block can move relatively to the triangular block due to the transverse thrust of the vertical plates, the jacking block can slide downwards on the surface of the triangular block, so that the sliding block drives the clamping plate to slide downwards, the springs are compressed, the clamping plate synchronously moves downwards while the vertical plates relatively move, so that a workpiece positioned on the workbench body is conveniently clamped, and meanwhile, the clamping plate synchronously moves upwards due to the action of the springs while the vertical plates move outwards, so that the workpiece is conveniently taken out.

3. According to the invention, through the arrangement of the positioning assembly, the driving plate sliding on the bottom moving guide rail drives the whole workbench body to move, and when the driving plate ascends, the inserted rod at the upper end of the driving plate can be inserted into the positioning cylinder, and the positioning cylinder is in a shape of wide lower part and narrow upper part, so that the inserted rod is convenient to position, the driving plate can be positioned more accurately when ascending, and the workbench body is driven to move on the moving guide rail.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic view of the bottom structure of the present invention;

FIG. 3 is an enlarged view of the invention at A in FIG. 2;

FIG. 4 is a schematic top view of the present invention showing the structure in the mounting hole;

FIG. 5 is a front cross-sectional view of the present invention for showing an adjustment structure;

fig. 6 is a schematic diagram of the present invention for showing the clamping assembly alone.

In the figure: 1. a workbench body; 2. positioning holes; 3. a mounting hole; 31. a fixed block; 32. a motor; 33. a bolt; 34. a gear; 4. an adjustment structure; 41. an adjusting plate; 42. latch teeth; 43. a cross plate; 44. an adjusting bolt; 441. a fastening nut; 45. a riser; 46. a clamping assembly; 461. a chute; 462. a slide block; 463. a clamping plate; 464. a movable rod; 465. a spring; 466. triangular blocks; 467. a top block; 468. an L-shaped block; 47. a tension spring; 48. a limiting block; 5. a positioning assembly; 51. a support rod; 52. a positioning cylinder; 53. a driving plate; 54. and a plunger.

Description of the embodiments

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

As shown in fig. 1 to 6, the embodiment of the invention provides a workpiece clamping mechanism for a workbench, which comprises a workbench body 1, wherein a plurality of positioning holes 2 are formed in the surface of the workbench body 1, a mounting hole 3 is formed in the center position of the workbench body 1, a motor 32 is installed in the mounting hole 3, the output end of the motor 32 is downward, the output end of the motor 32 is fixedly connected with a gear 34, an adjusting structure 4 is arranged on the lower surface of the workbench body 1, and a positioning assembly 5 is installed on the lower surface of the workbench body 1.

The beneficial effects of the above-mentioned part are: through adjusting the setting of structure 4, need not to use the hydraulic cylinder that has oil pipe to carry out work piece centre gripping, make workstation body 1 when removing the transposition, effectively avoid using hydraulic cylinder drive centre gripping, still need to open the hydro-cylinder in addition and deviate from the track, with high costs, and not nimble problem inadequately, simultaneously through setting up of locating component 5, can more accurate location when making actuating mechanism drive plate 53 rise and connect workstation body 1, drive workstation body 1 and remove more stably.

As shown in fig. 2 and 5, in one embodiment, the adjusting structure 4 includes two adjusting plates 41, one side of the adjusting plates 41 opposite to the gear 34 is fixedly connected with a plurality of latches 42, the latches 42 are meshed with the gear 34, one side of the adjusting plates 41 is fixedly connected with a transverse plate 43, one side of the transverse plate 43 is provided with an adjusting bolt 44 in a penetrating manner, an arc surface of the adjusting bolt 44 is in threaded connection with a vertical plate 45, and a clamping assembly 46 is installed on the surface of the vertical plate 45.

The beneficial effects of the above-mentioned part are: the motor 32 arranged below the workbench body 1 drives the gear 34 to rotate, so that the two adjusting plates 41 move towards the relative position or the opposite position, the two vertical plates 45 are matched with the clamping assembly 46 to clamp the workpiece on the workbench body 1, and the whole workbench body 1 is more flexible in moving in a driving mode of using the motor 32 instead of a hydraulic cylinder, so that the workpiece can be clamped continuously in moving, and meanwhile, the cost is saved.

As shown in fig. 5 and 6, in one embodiment, the clamping assembly 46 includes a slider 462, the slider 462 is slidably connected with the riser 45, a sliding groove 461 is formed on the surface of the riser 45, two sides of the slider 462 are slidably connected with the sliding groove 461, a clamping plate 463 is fixedly connected with an upper surface of the slider 462, two movable rods 464 are fixedly connected with an inner wall of the sliding groove 461, the movable rods 464 are slidably connected with the slider 462 and the clamping plate 463, a spring 465 is sleeved on an arc surface of the movable rods 464, two ends of the spring 465 are fixedly connected with the slider 462 and the riser 45 respectively, triangular blocks 466 are fixedly connected to positions, close to the riser 45, of two sides of the workbench body 1, top blocks 467 are fixedly connected to positions, close to the triangular blocks 466, of the slider 462, and the top blocks 467 are abutted to the triangular blocks 466.

The beneficial effects of the above-mentioned part are: when the motor 32 drives the two risers 45 to move in the opposite direction, the top block 467 abutting against the surface of the triangle block 466 will move relatively to the triangle block 466 due to the lateral thrust of the risers 45, the top block 467 will slide downward on the surface of the triangle block 466, so that the slider 462 drives the clamping plate 463 to slide downward, compresses the springs 465, and simultaneously moves the risers 45 relatively, the clamping plate 463 moves synchronously, and clamps the workpiece on the workbench body 1.

Wherein, the one end fixedly connected with L shape piece 468 of grip block 463.

The beneficial effects of the above-mentioned part are: through the setting of L shape piece 468, make grip block 463 not only can press from both sides dress to great volume work piece, when pressing from both sides dress small volume part simultaneously, press from both sides the L shape piece 468 butt clamp work piece side through both sides to it is fixed to carry out the centre gripping.

Wherein the L-shaped block 468 is a stainless steel block.

The beneficial effects of the above-mentioned part are: the stainless steel L-shaped block 468 has good wear resistance and higher strength, and is suitable for long-term use.

As shown in fig. 2 and 5, in one embodiment, fastening nuts 441 are screwed to both side positions of the circular arc surface of the adjusting bolt 44 corresponding to the riser 45, and the fastening nuts 441 abut the riser 45.

The beneficial effects of the above-mentioned part are: by rotating the adjustment bolt 44, the relative distance between the vertical plate 45 and the horizontal plate 43 can be adjusted, and then the adjustment bolt 44 can be fixed by tightening the fastening nuts 441 on both sides so that the fastening nuts 441 clamp the vertical plate 45.

Wherein, the adjusting plate 41 is fixedly connected with a tension spring 47 relative to one side of the transverse plate 43, and one end of the tension spring 47 is fixedly connected with the transverse plate 43.

The beneficial effects of the above-mentioned part are: the transverse plate 43 is connected with the adjusting plate 41 through the tension spring 47, and one side of the transverse plate 43 is pulled by the tension spring 47, so that the movement stability of two sides of the transverse plate 43 is enhanced.

Wherein, a plurality of limiting blocks 48 are fixedly connected to the lower surface of the workbench body 1 near the position of the adjusting plate 41, the limiting blocks 48 are L-shaped, and the adjusting plate 41 is in sliding connection with the limiting blocks 48.

The beneficial effects of the above-mentioned part are: through the setting of stopper 48, carry out the spacing to the sliding position of regulating plate 41, make regulating plate 41 sliding travel more stable.

As shown in fig. 1 and 3, in one embodiment, the positioning assembly 5 includes four support rods 51, the upper ends of the support rods 51 are fixedly connected with the workbench body 1, the lower ends of the support rods 51 are fixedly connected with positioning cylinders 52, inserting rods 54 are inserted into the positioning cylinders 52, the lower ends of the inserting rods 54 are fixedly connected with driving plates 53, and the lower ends of the driving plates 53 are connected with the moving guide rails through chains.

The beneficial effects of the above-mentioned part are: through setting up of locating component 5, drive board 53 by the sliding on the bottom movable rail drives whole workstation body 1 and removes, and when drive board 53 risees, the inserted bar 54 of its upper end can insert in the positioning tube 52, and positioning tube 52 is wide down, narrow up to be convenient for insert bar 54 location, make drive board 53 more accurate when rising fix a position, thereby drive workstation body 1 and remove on movable rail.

Four fixed blocks 31 are fixedly connected to the inner wall of the mounting hole 3, bolts 33 are arranged in the fixed blocks 31 in a penetrating mode, and the lower ends of the bolts 33 are in threaded connection with the motor 32.

The beneficial effects of the above-mentioned part are: the motor 32 can be conveniently installed by tightening the bolts 33, the motor 32 can be installed in the installation hole 3 at the upper end of the workbench body 1, and the disassembly and assembly are convenient.

Working principle and using flow:

when in use, during processing one of the workbench bodies 1, the workpiece is placed on the other workbench body 1, then the motor 32 is started, the gear 34 at the output end of the motor 32 is driven to rotate by the motor 32, the gear 34 drives the latch 42 meshed with the gear 34 to move cooperatively, the adjusting plate 41 is further moved relatively, the transverse plate 43 is driven to move the vertical plate 45 on the adjusting bolt 44 relatively, the two vertical plates 45 move towards the relative position, in the process, the top block 467 is matched with the triangular block 466 to slide downwards, the sliding block 462 drives the clamping plate 463 to move downwards, the workpiece is clamped or abutted by the L-shaped block 468, the workpiece is clamped, then the driving mechanism enables the driving plate 53 to slide in the guide rail to the lower part of the workbench body 1, the driving plate 53 moves upwards, the inserting rod 54 is inserted into the positioning cylinder 52 to be positioned, and the workbench body 1 is lifted upwards and slides along with the guide rail to exchange the workbench.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present 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 therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a work piece clamping machine constructs of exchange workstation, includes workstation body (1), its characterized in that: a plurality of locating holes (2) are formed in the surface of the workbench body (1), a mounting hole (3) is formed in the central position of the workbench body (1), a motor (32) is mounted in the mounting hole (3), the output end of the motor (32) is downward, a gear (34) is fixedly connected with the output end of the motor (32), an adjusting structure (4) is arranged on the lower surface of the workbench body (1), the adjusting structure (4) comprises two adjusting plates (41), a plurality of clamping teeth (42) are fixedly connected to one side of each adjusting plate (41) corresponding to the gear (34), each clamping tooth (42) is meshed with the corresponding gear (34), a transverse plate (43) is fixedly connected to one side of each adjusting plate (41), an adjusting bolt (44) is arranged on one side of each transverse plate (43) in a penetrating mode, a vertical plate (45) is connected with the circular arc surface of each adjusting bolt (44) in a threaded mode, and a clamping assembly (46) is mounted on the surface of each vertical plate (45);

clamping assembly (46) are including slider (462), slider (462) and riser (45) sliding connection, spout (461) have been seted up on the surface of riser (45), both sides and spout (461) sliding connection of slider (462), the last fixedly connected with grip block (463) of slider (462), the inner wall fixedly connected with two movable rods (464) of spout (461), movable rod (464) and slider (462) and grip block (463) sliding connection, the arc surface cover of movable rod (464) has spring (465), both ends of spring (465) are respectively with slider (462) and riser (45) fixed connection, the position that is close to riser (45) of workstation body (1) both sides is equal fixedly connected with triangle piece (466), the position that slider (462) is close to triangle piece (466) is fixedly connected with kicking block (467), kicking block (467) and triangle piece (466) butt.

2. The work piece clamping mechanism of an exchange table of claim 1, wherein: one end of the clamping plate (463) is fixedly connected with an L-shaped block (468).

3. The work piece clamping mechanism of an exchange table of claim 2, wherein: the L-shaped block (468) is a stainless steel block.

4. The work piece clamping mechanism of an exchange table of claim 1, wherein: the two sides of the arc-shaped surface of the adjusting bolt (44) corresponding to the vertical plate (45) are respectively connected with a fastening nut (441) in a threaded mode, and the fastening nuts (441) are abutted to the vertical plate (45).

5. The work piece clamping mechanism of an exchange table of claim 1, wherein: one side of the adjusting plate (41) opposite to the transverse plate (43) is fixedly connected with a tension spring (47), and one end of the tension spring (47) is fixedly connected with the transverse plate (43).

6. The work piece clamping mechanism of an exchange table of claim 1, wherein: the workbench is characterized in that a plurality of limiting blocks (48) are fixedly connected to the lower surface of the workbench body (1) close to the adjusting plate (41), the limiting blocks (48) are L-shaped, and the adjusting plate (41) is slidably connected with the limiting blocks (48).

7. The work piece clamping mechanism of an exchange table of claim 1, wherein: the positioning device comprises a workbench body (1), wherein a positioning assembly (5) is mounted on the lower surface of the workbench body (1), the positioning assembly (5) comprises four supporting rods (51), the upper ends of the supporting rods (51) are fixedly connected with the workbench body (1), positioning cylinders (52) are fixedly connected to the lower ends of the supporting rods (51), inserting rods (54) are inserted into the positioning cylinders (52), driving plates (53) are fixedly connected to the lower ends of the inserting rods (54), and the lower ends of the driving plates (53) are connected with moving guide rails through chains.

8. The work piece clamping mechanism of an exchange table of claim 1, wherein: the inner wall fixedly connected with four fixed blocks (31) of mounting hole (3), bolt (33) are worn to be equipped with in the inside of fixed block (31), the lower extreme and the motor (32) threaded connection of bolt (33).