Positioning and clamping device

Abstract

The positioning and clamping device belongs to the field of filter press, and comprises a rack, a driving device, a center bearing seat, a transmission system, a support base plate, a rolling guide rail and slide, a nut, a screw rod, a nut connecting plate, a clamping support, a mandrel, a torsion spring, a hook-shaped clamping plate, a locking nut, an upper clamping rod, a positioning stop sleeve and a base plate bolt. The rack is installed at the lower part of the device, and is used for supporting and installing the components of the device. The device has the characteristics of high automation degree, wide application range and high production efficiency.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of plate-and-frame filter press, in particular to a positioning and clamping device for machining the girder with rectangular cross section of the filter press. BACKGROUND

[0002] The filter press is a commonly used solid-liquid separation equipment, and the plate-and-frame filter press is one of the commonly used filter presses. The existing plate-and-frame filter press is mostly composed of pressing plate, thrust plate, oil cylinder head, frame, feeding system, pressing system, etc. The frame is an important component for supporting and installing parts, and needs to bear most of the stress of the filter press, including gravity and pressing force. The main component of the frame is the girder. The existing girders mostly use rectangular steel pipes as base pieces, and various working elements are attached to the base pieces to form the girders. The existing processing method of the girder mainly includes the following steps: 1. blanking, cutting the rectangular steel pipe to a certain length as the blank of the girder; 2. flat head, processing the two ends of the girder to be flush to ensure the accuracy of the length of the girder; 3. cutting, cutting mounting holes on the girder; 4. electric welding, electric welding the additional parts on the girder according to the design position to fix the position; 5. welding, checking the accuracy of the position of the welded auxiliary parts, and then continuously welding firmly; 6. polishing, polishing the welding and cutting parts smooth. Due to the different models of the filter press, the cross section and length of the girder are different. Each process needs to turn over and clamp the girder, which causes great inconvenience to the machining of the girder of the filter press, affects the processing efficiency, and reduces the processing quality. SUMMARY

[0003] In view of the above problems existing in the processing of the existing filter press girder, the present application provides a positioning and clamping device which can adapt to the girders with rectangular section of multiple specifications and can automatically position and clamp, and the specific technical scheme is as follows: a positioning and clamping device, characterized in that: the positioning and clamping device comprises a rack, a driving device, a center bearing seat, a transmission system, a support pad, a rolling guide rail and a sliding seat, a nut, a lead screw, a nut connecting plate, a clamping support, a mandrel, a torsion spring, a hook-shaped clamping plate, a locking nut, an upper clamping rod, a positioning baffle and a pad bolt; the rack is installed at the lower part of the present application and is used for supporting and installing the parts of the present application; the driving device is installed on the rack and connected with the rack; the power output of the driving device is connected with the transmission system, and the driving device can provide power for the transmission system; the center bearing seat is installed on the rack and connected with the rack; the transmission system is installed between the driving device and the lead screw and can transmit the power and movement of the driving device to the lead screw; the support pad is installed at the middle part of the rack, that is, at the middle position between the two clamping supports and at the lower part of the girder to be clamped; the rolling guide rail and the sliding seat are installed on the rack and connected with the rack; the sliding seat can move linearly on the rolling guide rail; the nut is installed on the lead screw and sleeved with the lead screw and can move linearly under the driving of the lead screw; the nuts are installed in pairs, and the rotation directions of the inner threads of each pair of nuts are opposite; the lead screw is installed on the center bearing seat and can rotate on the center bearing seat; the lead screw is connected with the transmission system and can rotate on the center bearing seat under the driving of the transmission system; the thread specification and model size of the lead screw are matched with the inner thread of the nut; the nut connecting plate is installed on the nut and can move with the nut; the clamping support is installed on the rolling guide rail and the sliding seat, connected with the sliding seat and connected with the nut connecting plate; the mandrel is installed on the clamping support and connected with the clamping support; the torsion spring is sleeved on the mandrel and in contact with the hook-shaped clamping plate and the clamping support, can exert a torque on the hook-shaped clamping plate to make the hook-shaped clamping plate rotate, and the torque has a tendency to drive the upper end of the hook-shaped clamping plate to move towards the center of the girder; the locking nut is installed on the upper clamping rod and screwed with the upper clamping rod, and can lock the upper clamping rod and the hook-shaped clamping plate; the upper clamping rod is installed on the upper end of the hook-shaped clamping plate and sleeved with the hook-shaped clamping plate, and can adjust the distance between the upper clamping rod and the upper end of the hook-shaped clamping plate; the positioning baffle is installed on the mandrel and located between the hook-shaped clamping plate and the clamping support, and is used for keeping the distance between the side edge of the hook-shaped clamping plate and the side edge of the clamping support stable; and the pad bolt is installed on the support pad and can lock the support pad and the rolling guide rail and the sliding seat, and prevent the position of the support pad from changing.

[0004] Further, the driving device is a combination of a motor and a speed reducer.

[0005] Further, the transmission system is chain transmission.

[0006] Further, the transmission system is a belt transmission or a gear transmission.

[0007] Further, the support base plate has multiple specifications, each corresponding to a rectangular girder.

[0008] Further, the rolling guide and slide have two or more, symmetrically distributed on both sides of the central bearing seat.

[0009] Further, the thread of the lead screw is trapezoidal thread, and the rotation direction of the two ends is opposite.

[0010] Advantages

[0011] The beneficial effects of the present application are that it can adapt to the processing of various specifications of filter press girders, automatically clamp and center, improve processing efficiency, reduce labor intensity, and improve processing precision. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is the front structure schematic diagram of the present application

[0013] Figure 2 is the side structure schematic diagram of the present application

[0014] 1. frame, 2. drive device, 3. central bearing seat, 4. transmission system, 5. support base plate, 6. rolling guide and slide, 7. nut, 8. lead screw, 9. nut connecting plate, 10. clamping support, 11. mandrel, 12. torsional spring, 13. hook-shaped clamping plate, 14. locking nut, 15. upper clamping rod, 16. positioning stop sleeve, 17. base plate bolt. DETAILED DESCRIPTION

[0015] In order to better illustrate the technical solutions of the present application, the specific embodiments of the present application will be further described in conjunction with the drawings, such as Figure 1 , Figure 2The rack 1 is installed at the lower part of the application to support and install the components of the application; the motor combined with the reducer is selected as the driving device 2 in this example, which is installed on the rack 1 and connected with the rack 1, and the power output of the driving device 2 is connected with the transmission system 4 to provide power for the transmission system 4; the power supply is connected with the electrical control system of the application, and the low-voltage electrical control system commonly used in the industry is selected as the electrical control system of this example; the center bearing seat 3 is installed on the rack 1 and connected with the rack 1; the chain transmission is selected as the transmission system 4 of this example, which is installed between the driving device 2 and the lead screw 8 to transmit the power and movement of the driving device 2 to the lead screw 8; for this example, the driving sprocket is installed on the power output shaft of the reducer of the driving device 2, the driven sprocket is installed on the lead screw 8, and the two sprockets are connected by a roller chain to form the transmission system of this example; the support pad 5 is installed in the middle part of the rack 1, that is, in the middle part between the two clamping supports 10 and at the lower part of the beam to be clamped to support the beam to be machined; the rolling guide rail and slide 6 is installed on the rack 1 and connected with the rack 1; it includes a rolling guide rail and a slide, and the slide can move linearly on the rolling guide rail; the nut 7 is installed on the lead screw 8 and sleeved with the lead screw 8 to move linearly under the driving of the lead screw 8; the nut 7 is selected in pairs in this example, the rotation directions of the internal threads of each pair of nuts 7 are opposite, and each pair of nuts 7 moves synchronously and reversely under the driving of the lead screw 8; the lead screw 8 is installed on the center bearing seat 3 to rotate on the center bearing seat 3; the thread specifications and model sizes of the lead screw 8 are matched with the internal threads of the nut 7; the nut connecting plate 9 is installed on the nut 8 to move with the nut 8; the clamping support 10 is installed on the rolling guide rail and slide 6, connected with the slide and connected with the nut connecting plate 9; the mandrel 11 is installed on the clamping support 10 and connected with the clamping support 10; the torsional spring 12 is sleeved on the mandrel 11 and in contact with the hook-shaped clamping plate 13 and the clamping support 10 to exert a torque on the hook-shaped clamping plate 13 to rotate the hook-shaped clamping plate 13, and the torque has a tendency to drive the upper end of the hook-shaped clamping plate 13 to move towards the center of the beam; the locking nut 14 is installed on the upper clamping rod 15 and screwed with the upper clamping rod 15 to lock the upper clamping rod 15 and the hook-shaped clamping plate 13; the upper clamping rod 15 is installed on the upper end of the hook-shaped clamping plate 13 and sleeved with the hook-shaped clamping plate 13 to adjust the distance between the upper clamping rod 15 and the upper end of the hook-shaped clamping plate 13; the positioning collar 16 is installed on the mandrel 11 and located between the hook-shaped clamping plate 13 and the clamping support 10 to keep the distance between the side edge of the hook-shaped clamping plate 13 and the side edge of the clamping support 10 stable;The pad bolt 17 is installed on the support pad 5, the support pad 5 is locked with the rolling guide and the slide 6, the position change of the support pad 5 is prevented, the accurate clamping of the to-be-processed girder is facilitated, and the embodiment of the application is completed.

[0016] In application, the appropriate support pad 5 is selected, the to-be-processed rectangular steel pipe is placed on the support pad 5, the driving device 2 is started, the driving device 2 drives the transmission system 4, the transmission system 4 drives the rotation of the lead screw 8, and then drives the folding of the pair of nuts 7 towards the middle of the lead screw 8, the pair of nuts 7 respectively drive the folding of the pair of nut connecting plates 9 and the clamping support 10 towards the position of the rectangular steel pipe (to-be-processed girder), and then drive the hook-shaped clamping plate 13 to fold towards the position of the rectangular steel pipe (to-be-processed girder), until the clamping of the to-be-processed girder is completed, the clamping process is completed, and the rectangular steel pipe can be processed by cutting, welding, polishing and the like; conversely, the driving device 2 is started, the driving device 2 is reversed, the clamping of the rectangular steel pipe is opened in reverse, the rectangular steel pipe is taken out, and a working cycle is completed; if the rectangular steel pipe is long, two sets or more sets of the application can be combined; since the centering is automatic, the clamping is automatic, and the loosening is also automatic, the labor intensity can be reduced, the production efficiency can be improved, the clamping is stable and reliable, and the processing precision is guaranteed.

Claims

1. A positioning and clamping device, characterized in that: The positioning and clamping device includes a frame, a drive unit, a central bearing seat, a transmission system, a support plate, a rolling guide rail and slide, a nut, a lead screw, a nut connecting plate, a clamping bracket, a spindle, a torsion spring, a hook-shaped clamping plate, a locking nut, an upper clamping rod, a positioning sleeve, and a plate pin. The drive unit is mounted on the frame and connected to it. The power output of the drive unit is connected to the transmission system, providing power to the transmission system. The central bearing seat is mounted on the frame and connected to it. The transmission system is installed between the drive unit and the lead screw, enabling the drive unit to... The power and motion of the actuator are transmitted to the lead screw; the support plate is installed in the middle of the frame, located between the two clamping supports, and below the beam to be clamped; the rolling guide rail and slide are installed on the frame and connected to it; including the rolling guide rail and slide; the slide can move linearly on the rolling guide rail; the nut is installed on the lead screw and fitted with it, and can move linearly under the drive of the lead screw; the nuts are installed in pairs, and the internal threads of each pair of nuts have opposite directions; the lead screw is installed on the central bearing seat and can move linearly on the central shaft. The bearing rotates on the bearing seat; the lead screw is connected to the transmission system and can rotate on the central bearing seat under the drive of the transmission system; the nut connecting plate is installed on the nut and can move with the nut; the clamping bracket is installed on the rolling guide rail and slide, connected to the slide and the nut connecting plate; the mandrel is installed on the clamping bracket and connected to the clamping bracket; the torsion spring is fitted on the mandrel and contacts the hook-shaped clamp and the clamping bracket, and can apply a torque to the hook-shaped clamp to rotate the hook-shaped clamp, which drives the upper end of the hook-shaped clamp to move towards the center of the beam. The locking nut is installed on the upper clamping rod and screwed onto it, locking the upper clamping rod to the hook-shaped clamping plate. The upper clamping rod is installed on the upper end of the hook-shaped clamping plate and fitted onto it, allowing adjustment of the distance between the upper clamping rod and the upper end of the hook-shaped clamping plate. The positioning sleeve is installed on the spindle and located between the hook-shaped clamping plate and the clamping bracket, maintaining a stable distance between the side of the hook-shaped clamping plate and the side of the clamping bracket. The pad pin is installed on the bracket pad, locking the bracket pad to the rolling guide rail and slide block, preventing changes in the position of the bracket pad.

2. The positioning and clamping device according to claim 1, characterized in that: The drive device is a combination of a motor and a reducer.

3. The positioning and clamping device according to claim 1, characterized in that: The transmission system described is a chain drive.

4. The positioning and clamping device according to claim 1, characterized in that: The transmission system is either belt drive or gear drive.

5. A positioning and clamping device according to claim 1, characterized in that: The support plate has multiple specifications, and each specification corresponds to a rectangular beam.

6. A positioning and clamping device according to claim 1, characterized in that: There are two or more rolling guides and slides, symmetrically distributed on both sides of the central bearing seat.

7. A positioning and clamping device according to claim 1, characterized in that: The screw has a trapezoidal thread, and the two ends have opposite directions of rotation.

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