CN216264592U

CN216264592U - Circular column clamping device with adjustable vertical height

Info

Publication number: CN216264592U
Application number: CN202120804646.0U
Authority: CN
Inventors: 徐杰; 王学成; 陶永
Original assignee: Chengdu Wantang Technology Co ltd
Current assignee: Chengdu Wantang Technology Co ltd
Priority date: 2021-04-19
Filing date: 2021-04-19
Publication date: 2022-04-12
Anticipated expiration: 2031-04-19

Abstract

The utility model relates to the technical field of machining equipment, in particular to a circular column clamping device with adjustable vertical height, which comprises machining equipment, wherein an installation base is arranged on the machining equipment, and two groups of transmission shafts are arranged on the machining equipment in a mirror image manner; two groups of clamping mechanisms are slidably arranged on the mounting base, and the clamping mechanisms and the transmission shaft are coaxially arranged; the inside of fixture is the work piece clamping space that link up, clamping device and transmission shaft joint transmission. The clamping device disclosed by the utility model can realize the comprehensive processing of the workpiece without frequently disassembling and turning the clamping mechanism, the clamping of the two-component clamping mechanism is simple and convenient to operate, the two-component clamping mechanism can be connected with the transmission shaft in a clamping manner and can clamp the large-volume and heavy-weight workpiece, and the problems of long clamping time, complicated clamping process, low clamping efficiency, large clamping precision error and the like caused by frequent disassembling and turning of the clamping mechanism are avoided.

Description

Circular column clamping device with adjustable vertical height

Technical Field

The utility model relates to the technical field of machining equipment, in particular to a height-adjustable circular column clamping device.

Background

In the field of machining, lathes and machine tools play an important role. The jig is a device for fixing a processing object to occupy a correct position for receiving construction or inspection in a machining process, and is also called a jig. In a broad sense, any device used to quickly, conveniently and safely mount a workpiece at any stage in a process may be referred to as a jig.

At present, in the process of machining mechanical parts, particularly on a lathe, a three-jaw chuck type clamp is used for clamping a plurality of cylindrical workpieces, however, tools clamped by the three-jaw chuck are generally small, and when the length is slightly longer, a tip is used for positioning and fixing, so that the three-jaw chuck type clamp has limitations to a certain extent; for a large-sized circular column tool, the clamping is difficult to stably realize by the existing clamping method, a workpiece needs to be clamped for multiple times when being processed, and the other side is processed by clamping again after one side is processed, so that the clamping mode is complex in process, frequent clamping also affects the clamping precision, stability and the like of the workpiece, more time and labor are spent, and the clamping efficiency and the processing quality are also affected.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides the clamping device for clamping the circular column, which can conveniently and quickly clamp and process workpieces with various sizes, and solves the problems that the clamping device for workpieces such as the circular column cannot process large-size workpieces, needs frequent disassembly and turning clamping, has low clamping precision and stability, influences the processing quality and has low efficiency of clamping parts.

In order to achieve the purpose, the utility model adopts the technical scheme that:

a circular ring column clamping device with adjustable vertical height comprises processing equipment, wherein an installation base is arranged on the processing equipment, and two groups of transmission shafts are arranged on the processing equipment in a mirror image manner; two groups of clamping mechanisms are slidably arranged on the mounting base, and the clamping mechanisms and the transmission shaft are coaxially arranged; the inside of fixture is the work piece clamping space that link up, fixture and transmission shaft joint transmission.

Optionally, the clamping mechanism comprises a sliding block, a bearing seat, a bearing, a hollow shaft and a three-jaw chuck, the sliding block is arranged in a sliding groove of the mounting base, the bearing seat is fixed on the sliding block, the bearing is mounted on the inner wall of the bearing seat, the hollow shaft is fixedly mounted on the inner wall of the bearing, and one end of the hollow shaft is detachably connected with the three-jaw chuck with a hollow interior.

Optionally, the three-jaw chuck comprises retractable clamping clips, and the three clips are uniformly arranged circumferentially; the clamp is used for controlling the telescopic clamping of the workpiece through a telescopic mechanism, and the telescopic mechanism is connected with a pressure control system.

Optionally, the sliding block controls the transverse movement through a telescopic driving mechanism.

Optionally, the vertical height-adjustable circular ring column clamping device further comprises a distance sensor, wherein the distance sensor comprises a signal transmitting end and a signal receiving end, the signal receiving end is arranged on the sliding block, and the signal receiving end is located right below the end face of the hollow shaft; the signal transmitting end is arranged on the mounting base and is positioned right below the end face of the transmission shaft.

Optionally, a band-type brake device is arranged above the bearing seat.

Optionally, the band-type brake device includes that band-type brake hydro-cylinder and band-type brake stop the piece, the cambered surface laminating setting of band-type brake stop piece and hollow shaft.

The utility model has the following advantages and beneficial effects:

1. the clamping device of the circular column is provided with two groups of clamping mechanisms and two groups of transmission shafts, wherein the transmission is realized by manually or automatically controlling and moving one group of clamping mechanisms to be clamped with one group of transmission shafts; after the workpiece at one end is machined, the clamping mechanism and the transmission shaft are unlocked, and the clamping mechanism only serving as a support is moved to be clamped with the other group of transmission shafts, so that the machining positions of the clamped workpieces are changed. Due to the design, the workpiece can be comprehensively processed without frequently disassembling and turning the clamping, and the problems of long clamping time, complex clamping process, low clamping efficiency, large clamping precision error and the like caused by frequent disassembling and clamping are solved.

2. This fixture of ring post realizes removing through the slider, and the hollow shaft passes through the bearing to be fixed on the bearing frame, and the one end of hollow shaft can be dismantled and be connected with inside hollow three-jaw chuck. Therefore, when the workpiece is clamped, the workpiece can pass through the inside of the clamping mechanism, and the workpiece and the hollow shaft can rotate, so that the requirements of processing conditions are met; the clamping mechanism can move freely, so that the clamping position can be selected according to the specific position and the specific condition of processing; the two clamping mechanisms can ensure the stability and the positioning accuracy of clamping, and further can clamp and process workpieces with large volume and heavy weight; secondly, the clamping device is provided with a band-type brake device, so that the rotation of the hollow shaft can be fixed, the workpiece is clamped integrally to realize transverse movement, the machining position is changed, and machining is realized quickly.

Drawings

Fig. 1 is a schematic view of a circular column clamping device with adjustable vertical height according to an embodiment of the present invention;

FIG. 2 is an enlarged view a of a portion of FIG. 1;

icon: the method comprises the following steps of 1-mounting a base, 2-a transmission shaft, 3-a clamping mechanism, 31-a sliding block, 32-a bearing seat, 33-a bearing, 34-a hollow shaft, 35-a three-jaw chuck, 351-a clamp, 36-a band-type brake oil cylinder, 361-a band-type brake sheet, 4-a cutter, 5-a workpiece, 6-a distance sensor, 61-a signal receiving end and 62-a signal transmitting end.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

As shown in fig. 1 and 2, the circular column clamping device with the adjustable vertical height comprises a processing device, wherein a mounting base 1 is arranged on the processing device, two groups of transmission shafts 2 are arranged on the processing device in a mirror image manner, namely the processing device is provided with two transmission shafts 2 which can respectively provide rotary driving force for a workpiece 5. Two groups of clamping mechanisms 3 are arranged on the mounting base 1 in a sliding manner, the two groups of clamping mechanisms 3 are arranged in a mirror image manner, and the clamping mechanisms 3 and the transmission shaft 2 are coaxially arranged; the inside of fixture 3 is through-going work piece 5 clamping space, and fixture 3 and transmission shaft 2 joint transmission.

The clamping device is provided with two groups of clamping mechanisms 3 and two groups of transmission shafts 2, wherein the transmission is realized by manually or automatically controlling and moving one group of clamping mechanisms 3 to be clamped with one group of transmission shafts 2, and when the other group of clamping mechanisms 3 is clamped with the transmission shafts 2 for transmission, the other group of clamping mechanisms 3 are used for supporting and clamping the other end of a workpiece 5; after a certain section of the workpiece 5 is machined, the clamping connection between the clamping mechanism 3 and the transmission shaft 2 is released, and the clamping mechanism 3 which only serves as a support function is moved to be clamped with the other group of transmission shafts 2, so that the machining position of the clamped workpiece 5 is changed. By the design, the workpiece 5 can be comprehensively processed without frequently disassembling and turning the clamping, so that the problems of long clamping time, complex clamping process, low clamping efficiency, large clamping precision error and the like caused by frequent disassembling and clamping are solved, and the clamping efficiency and the processing quality are effectively improved.

Further, fixture 3 includes slider 31, bearing frame 32, bearing 33, hollow shaft 34 and three-jaw chuck 35, and slider 31 sets up in the spout of installation base 1, and bearing frame 32 is fixed on slider 31, and bearing 33 installs on the inner wall of bearing frame 32, and hollow shaft 34 fixed mounting is on the inner wall of bearing 33, and the one end of hollow shaft 34 can be dismantled and be connected with inside hollow three-jaw chuck 35. The design of the clamping mechanism 3, the hollow shaft 34 and the three-jaw chuck 35 with a hollow interior ensures the through of the interior of the clamping mechanism 3 and allows the workpiece 5 to pass through, the clamping mechanism 3 can be moved in the clamping process so as to realize the clamping on any position of the workpiece 5, the clamping stability is further ensured, the clamping position can be reasonably selected according to the specific processing position, and more selectivity is realized compared with a fixed clamping device. The clamping mode of the two ends is reliable in clamping and accurate in positioning. The traditional clamping device is basically fixedly connected with the transmission shaft 2, and the other end of the traditional clamping device is positioned through the tip, but the clamping mode has many problems, the large workpiece 5 is clamped unstably, the workpiece 5 at the clamping position section needs to be turned around for clamping, and unnecessary labor is increased. The clamping mechanism 3 designed by the utility model can be clamped with the transmission shaft 2, one clamping mechanism 3 is clamped with the transmission shaft 2, and the other clamping mechanism 3 stably clamps the workpiece 5, so that the clamping is firmer and more reliable, the clamping is not required to be turned around in the processing process, and the clamping of the two clamping mechanisms 3 and the transmission shaft 2 is only required to be controlled, so that the processing of each position on the workpiece 5 is realized. The clamping device is simple and convenient to operate, greatly reduces the clamping flow and improves the clamping efficiency.

Further, the three-jaw chuck 35 comprises retractable clamping clips 351, and the three clips 351 are uniformly and circumferentially arranged; the clamp 351 is controlled to stretch and clamp the workpiece 5 through a telescopic mechanism, and the telescopic mechanism is connected with a pressure control system. The traditional three-jaw chuck 35 is generally locked manually, wastes time and labor, the clamping torque is not well controlled, and the clamping is too light and too heavy and is not suitable. According to the utility model, the telescopic driving mechanism is designed to control the clamp 351 to be telescopically clamped and is connected with the pressure control system, so that corresponding clamping pressure can be set according to workpieces 5 with different weight, different sizes and other parameters, and the clamp 351 is automatically controlled to accurately and stably clamp the workpieces 5.

The sliding block 31 controls the transverse movement through a telescopic driving mechanism, and the transverse movement of the sliding block 31 can be driven manually for the small workpiece 5; for the large-size workpiece 5, the telescopic driving mechanism is required to automatically control to realize the transverse movement of the slide block 31, and further control the transverse movement of the clamping mechanism 3.

Further, the clamping device further comprises a distance sensor 6, the distance sensor 6 comprises a signal transmitting end 62 and a signal receiving end 61, the signal receiving end 61 is arranged on the sliding block 31, and the signal receiving end 61 is positioned right below the end face of the hollow shaft 34; the signal transmitting end 62 is arranged on the mounting base 1, and the signal transmitting end 62 is positioned right below the end surface of the transmission shaft 2.

In order to realize the accuracy and the rapidity of the clamping mechanism 3 and the transmission shaft 2, the distance sensor 6 is arranged, when the transmission shaft 2 and the clamping mechanism 3 need to be clamped, the manual or automatic control slide block 31 moves, so that the clamping mechanism 3 is close to the transmission shaft 2, when the clamping mechanism 3 and the transmission shaft 2 are close to a set distance, the distance sensor 6 outputs a signal, the position is reached at the moment, the clamping end 21 of the transmission shaft 2 is clamped with the hollow shaft 34 of the clamping mechanism 3, and the transmission shaft 2 can drive the hollow shaft 34 of the clamping mechanism 3 and the three-jaw chuck 35 to rotate. Of course, the clamping is realized in such a way, the clamping accuracy is deviated, and the transmission shaft 2 or the hollow shaft 34 needs to be manually rotated to align the clamping positions of the hollow shaft 34 and the transmission shaft 2 to realize the clamping. Based on this, a mechanism for fast clamping is provided, a circle of gear teeth can be arranged on the end face of the hollow shaft 34, the gear teeth and a gear are in meshing transmission, and the gear is connected with a control motor. Thus, when the automatic control slide block 31 slides, the output signal of the distance sensor 6 controls the clamping mechanism 3 to reach the designated position, the automatic control motor can rotate, and finally the hollow shaft 34 is controlled to rotate, so that the buckling position of the hollow shaft 34 is aligned with the buckling position of the transmission shaft 2, and then buckling connection is realized. The design can realize clamping automatically, quickly and accurately.

An internal contracting brake device is arranged above the bearing seat 32. When the three-jaw chuck 35 clamps the workpiece 5, the fixing of the workpiece 5 in the rotating direction and the overall transverse movement can be controlled by the band-type brake device.

Further, the band-type brake device includes band-type brake hydro-cylinder 36 and band-type brake piece 361, and band-type brake piece 361 sets up with the cambered surface laminating of hollow shaft 34. When the workpiece 5 needs to rotate, the internal contracting brake sheet 361 is far away from the surface of the hollow shaft 34; when the workpiece 5 needs to be fixed and rotation of the workpiece is forbidden, the band-type brake oil cylinder 36 extends, and the band-type brake sheet 361 presses the arc-shaped surface of the hollow shaft 34, so that fixation is achieved. The arrangement of the band-type brake device has a plurality of advantages, one of which is that: when other machining functions such as drilling, screw tap and the like need to be realized, the workpiece 5 can be fixed through the band-type brake device, and the rotation of the workpiece is forbidden; secondly, in the process of clamping at each position by one of the clamping mechanisms 3 in a transverse moving mode, the contracting brake device of the other clamping mechanism 3 is controlled to fix the workpiece 5, so that the position of the workpiece 5 is firm and stable and does not change in the clamping process; thirdly, in the process of two

fixture

3 and 2 joints of transmission shaft, need one of them fixture 3 to drive work piece 5 and remove together, the band-type brake is as fixed action this moment, guarantees the stability of whole centre gripping.

The working principle is as follows:

firstly, a workpiece 5 is clamped on two clamping mechanisms 3, one end of the workpiece 5 does not exceed the outer end face of one clamping mechanism 3, and the other clamping mechanism 3 can transversely move, so that the workpiece 5 can be selectively clamped at any position, such as: middle or extreme ends, etc. After the two clamping mechanisms 3 clamp the workpiece 5, the movement of the sliding block 31 is controlled to enable one of the clamping mechanisms 3 to approach the transmission shaft 2, and the hollow shaft 34 of the clamping mechanism 3 can be automatically or manually clamped with the transmission shaft 2.

When the processing equipment works, the transmission shaft 2 drives the clamping mechanism 3 to rotate, so as to drive the workpiece 5 to rotate, and the cutter 4 is driven to realize the processing of the workpiece 5; after the workpiece 5 is machined on a certain section, only the other clamping mechanism 3 needs to be controlled to release clamping, and then a new position is selected by sliding to clamp, so that the cutter 4 is machined at a new position; after other positions on the workpiece 5 are machined, the workpiece section in the clamping mechanism 3 clamped with the transmission shaft 2 is not machined, at the moment, the clamping mechanism 3 and the transmission shaft 2 on the surface are released from buckling connection, then the sliding block 31 is controlled to move, the other clamping mechanism 3 and the other transmission shaft 2 are driven to be clamped, after clamping is completed, the three-jaw chuck 35 of the clamping mechanism 3 firstly clamped with the transmission shaft 2 is loosened, the clamping mechanism 3 is automatically or manually controlled to transversely move, a new clamping position is selected, and the unmachined workpiece section in the original clamping mechanism 3 is exposed, so that the workpiece 5 at the position section is machined.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A circular ring column clamping device with adjustable vertical height comprises a processing device, wherein an installation base (1) is arranged on the processing device, and the circular ring column clamping device is characterized in that two groups of transmission shafts (2) are arranged on the processing device in a mirror image manner; two groups of clamping mechanisms (3) are arranged on the mounting base (1) in a sliding manner, and the clamping mechanisms (3) and the transmission shaft (2) are coaxially arranged; the inside of fixture (3) is the work piece clamping space that link up, fixture (3) and transmission shaft (2) joint transmission.

2. The adjustable vertical height circular column clamp of claim 1, wherein: fixture (3) include slider (31), bearing frame (32), bearing (33), hollow shaft (34) and three-jaw chuck (35), slider (31) set up in the spout of installation base (1), bearing frame (32) are fixed on slider (31), install on the inner wall of bearing frame (32) bearing (33), hollow shaft (34) fixed mounting is on the inner wall of bearing (33), the one end of hollow shaft (34) can be dismantled and be connected with inside hollow three-jaw chuck (35).

3. The adjustable vertical height circular column clamp of claim 2, wherein: the three-jaw chuck (35) comprises retractable clamping clips (351), and the three clips (351) are uniformly arranged on the circumference; the clamp (351) is used for controlling the telescopic clamping of the workpiece (5) through a telescopic mechanism, and the telescopic mechanism is connected with a pressure control system.

4. The adjustable vertical height circular column clamp of claim 2, wherein: the sliding block (31) controls the transverse movement through a telescopic driving mechanism.

5. The adjustable vertical height circular column clamp of claim 2, wherein: the distance sensor (6) comprises a signal transmitting end (62) and a signal receiving end (61), the signal receiving end (61) is arranged on the sliding block (31), and the signal receiving end (61) is positioned right below the end face of the hollow shaft (34); the signal transmitting end (62) is arranged on the mounting base (1), and the signal transmitting end (62) is located under the end face of the transmission shaft (2).

6. The adjustable vertical height circular column clamp of claim 2, wherein: and a band-type brake device is arranged above the bearing seat (32).

7. The adjustable vertical height circular ring post clamp of claim 6 wherein: the band-type brake device comprises a band-type brake oil cylinder (36) and a band-type brake sheet (361), wherein the band-type brake sheet (361) is attached to the cambered surface of the hollow shaft (34).