CN209811744U - a support mechanism - Google Patents

Abstract

The utility model belongs to industrial machine tool equipment field especially relates to a supporting mechanism, include: the support mechanism comprises a bottom plate, a screw rod, a power output source, two supporting seats, two sliding blocks and a clamp assembly. Wherein, the anchor clamps subassembly includes two centre gripping units, and the link of every centre gripping unit is connected with a slider respectively, and when the lead screw rotated, drive two sliders and draw close or keep away from to the exposed core that drives two centre gripping units presss from both sides each other tightly or loosens. The utility model provides a supporting mechanism has the centre gripping subassembly, can play the clamping action when supporting the work piece, guarantees that the work piece can not rock in the course of working, improves the machining precision, improves the yield of work piece, improves production efficiency.

Description

a support mechanism

technical field

The utility model belongs to the field of industrial machine tools, in particular to a supporting mechanism.

Background technique

In the pipe cutting process, it is often necessary to process the round pipe. Since the workpiece itself is not rigid enough, and the length of the pipe is long and the pipe is mostly thin-walled, and the processing accuracy is high, it is necessary to process the pipe during the processing. Auxiliary support is provided to prevent the pipe material from swinging sharply during rotary cutting, which will affect the cutting accuracy. The traditional auxiliary support is divided into upper and lower bases, the middle is connected by a connecting rod, the lower base is fixed to the bed, and the upper base is equipped with a V-shaped bracket to support the workpiece. Through the screw drive, the upper base is controlled to lift up and down, so that according to the size of the workpiece Adjust up and down to prevent over-positioning. Its disadvantage is that the V-shaped support has no clamping force, even if it plays a supporting role, the workpiece will still swing in a small range during the processing, which will affect the processing accuracy.

Utility model content

The technical problem to be solved by the utility model is to provide a support mechanism, aiming to solve the problem that the existing support mechanism has no clamping force, and the workpiece will swing in a small range during the processing process, which affects the processing accuracy.

In order to solve the above-mentioned technical problems, the utility model is implemented in the following way. A support mechanism includes: a support mechanism bottom plate, a screw rod, a power output source, two support seats, two sliders and a clamp assembly;

The two support seats are relatively arranged at both ends of the bottom plate of the support mechanism, and the two ends of the screw rod are respectively assembled in the two support seats and can rotate relative to the two support seats. The power output The power output end of the source is connected to one end of the screw rod and drives the screw rod to rotate. The slider is provided with a threaded through hole, and the screw rod passes through the threaded through holes of the two sliders and the The two sliders are threaded, and the thread directions of the two sliders are opposite. The clamp assembly includes two clamping units that are hinged to each other, and the connecting ends of the two clamping units are respectively connected to one of the sliders. , when the screw mandrel rotates, the two sliders are driven to move closer or apart, so as to drive the clamping ends of the two clamping units to clamp or loosen each other.

Further, the support mechanism also includes: two guide shafts, the threaded through hole is arranged at the middle position of the slider, and a limit through hole is respectively provided on both sides of the threaded through hole, and the two through holes The guide shafts are respectively arranged on both sides of the screw rod and are parallel to the axial direction of the screw rod, and the two ends of the guide shaft are respectively assembled in the two support seats, and one guide shaft passes through two A limiting through hole on the same side as the threaded through hole in the slider.

Further, a bearing is installed in each support seat, the outer ring of the bearing is fixed in the support seat, and the two ends of the screw rod are respectively connected to the inner rings of the two bearings.

Further, the support mechanism also includes: two lock nuts, the two lock nuts are respectively screwed to the two ends of the screw rod, and the two ends of the screw rod are provided with shaft diameters that are successively reduced. The first stepped shaft section, the second stepped shaft section and the third stepped shaft section, a first radially stepped surface is provided between the first stepped shaft section and the second stepped shaft section, the second stepped shaft section and the second stepped shaft section A second radially stepped surface is provided between the third stepped shaft sections, the first radially stepped surface abuts against the first end surface of the inner ring of the bearing, and the second stepped shaft section and the The inner ring of the bearing is connected, and the second end surface of the inner ring of the bearing exceeds the second radially stepped surface, and the third stepped shaft section is provided with a thread that matches the lock nut, and the The lock nut abuts against the second end surface of the inner ring of the bearing, so as to lock the two ends of the screw rod in the inner rings of the two bearings.

Further, the support mechanism further includes: two bearing glands, a limit step is provided in the support seat, the first end surface of the outer ring of the bearing is abutted against the limit step, and the two bearings The glands are respectively fixedly connected to the two support seats and pressed against the second end surface of the corresponding outer ring of the bearing, so that the outer ring of the bearing is fixed between the limiting step and the bearing gland. between.

Further, the support mechanism further includes: a screw locking part, the screw locking part is arranged on the side of the screw rod, when the screw locking part is in the locked position, the screw rod Locking, when the screw locking part is in the loose position, the power output source can drive the screw to rotate.

Further, the power output source is a manual rotating wheel, the manual rotating wheel is fixedly connected with the screw rod, and the rotation of the manual rotating wheel drives the screw rod to rotate.

Further, the support mechanism further includes: a limit pin, a first limit groove is provided on the manual wheel, and a second limit groove is provided at the connecting end of the screw rod and the manual wheel, so The limit bolt is inserted into the first limit groove and the second limit groove, so that the manual wheel is fixedly connected with the screw rod.

Further, the clamping unit includes a clamping part and two clamping side plates, the first ends of the two clamping side plates are respectively fixedly connected to the two ends of the clamping part, and the two clamping The second end of the holding side plate is respectively connected with the two ends of the corresponding slider.

Further, the support mechanism further includes: a clamp limiter, the clamp limiter is installed on the bottom plate of the support mechanism and the movement direction of the clamping side plate, and is used to limit the movement direction of the two clamping units The furthest distance away.

Compared with the prior art, the utility model has the beneficial effect that: a support mechanism of the utility model includes: a support mechanism bottom plate, a screw rod, a power output source, two support seats, two sliders and a clamp assembly. Wherein, the fixture assembly includes two clamping units, and the connecting end of each clamping unit is respectively connected with a slider. The holding ends are clamped or loosened from each other. The supporting mechanism in the utility model has a clamping assembly, which can play a clamping role while supporting the workpiece, so as to ensure that the workpiece will not shake during the processing, improve the processing accuracy, improve the yield of the workpiece, and improve the production efficiency.

Description of drawings

Fig. 1 is the structural representation of the support mechanism of the present utility model;

Fig. 2 is a schematic diagram of the decomposition structure of Fig. 1;

Fig. 3 is a schematic structural view of the clamp assembly in Fig. 1;

FIG. 4 is a schematic structural diagram of the slider in FIG. 1 .

In the accompanying drawings, each reference sign indicates: 1. Supporting mechanism bottom plate; 2. Screw rod; 3. Support base; 4. Slider; 41. Thread through hole; 51. Clamping unit; 511. Clamping part; 512. Clamping side plate; 6. Guide shaft; 7. Bearing; 8. Lock nut; 9. Bearing gland; 10. Screw locking piece; 11. Manual runner; 12. Limit pin; 13. Fixture limit piece.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Please refer to Figures 1 to 4, which are a support mechanism provided by an embodiment of the present invention, including: a support mechanism bottom plate 1, a screw rod 2, a power output source, two support seats 3, two sliders 4 and a clamp assembly 5. Two support bases 3 are relatively arranged at both ends of the support mechanism base plate 1, and the two ends of the screw rod 2 are respectively assembled in the two support bases 3 and can rotate relative to the two support bases 3. The power output end of the power output source is connected to the wire One end of the rod 2 is connected and drives the screw rod 2 to rotate. The slider 4 is provided with a threaded through hole 41, and the screw rod 2 passes through the threaded through holes 41 of the two sliders 4 in turn to be threadedly connected with the two sliders 4. The thread direction of the slider 4 is opposite, and the clamp assembly 5 includes two clamping units 51 that are hinged to each other. The connecting ends of the two clamping units 51 are connected to a slider 4 respectively. The blocks 4 move closer or farther apart to drive the clamping ends of the two clamping units 51 to clamp or loosen each other.

The supporting mechanism in the utility model has a clamping assembly, which can play a clamping role while supporting the workpiece, so as to ensure that the workpiece will not shake during the processing, improve the processing accuracy, improve the yield of the workpiece, and improve the production efficiency.

Further, the support mechanism also includes: two guide shafts 6, the threaded through hole 41 is arranged at the middle position of the slider 4, and the two sides of the threaded through hole 41 are respectively provided with a limit through hole 42, as shown in Figure 4, two The guide shafts 6 are respectively arranged on both sides of the screw mandrel 2 and are parallel to the axial direction of the screw mandrel 2. The two ends of the guide shafts 6 are respectively assembled in the two support seats 3, and one guide shaft 6 passes through the two sliders 4 in turn. The limiting through hole 42 on the same side as the threaded through hole 41 . The slider 4 can slide on the guide shaft 6. When the screw mandrel 2 rotates to drive the slider 4 to move, the guide shaft 6 can limit the movement direction of the slider 4, prevent the slider 4 from rotating, and make the slider 4 move along the axis of the guide shaft. direction movement.

Each support seat 3 is equipped with a bearing 7, the outer ring of the bearing 7 is fixed in the support seat 3, and the two ends of the screw mandrel 2 are respectively connected with the inner rings of the two bearings 7. Specifically, the support mechanism also includes: two lock nuts 8 and two bearing glands 9, the two lock nuts 8 are respectively threaded with the two ends of the screw rod 2, and the two ends of the screw rod 2 are provided with shaft diameters The first step shaft section, the second step shaft section and the third step shaft section are successively reduced, a first radial step surface is arranged between the first step shaft section and the second step shaft section, and the second step shaft section and the second step shaft section A second radially stepped surface is provided between the three-step shaft sections, the first radially stepped surface touches against the first end surface of the inner ring of the bearing 7, the second stepped shaft section is connected to the inner ring of the bearing 7, and the bearing 7 The second end surface of the inner ring of the bearing 7 exceeds the second radial step surface, and the third step shaft section is provided with a thread that matches the lock nut 8, and the lock nut 8 is in contact with the second end surface of the inner ring of the bearing 7, To lock the two ends of the screw mandrel 2 in the inner rings of the two bearings 7 . There is a limit step in the support seat 3, the first end surface of the outer ring of the bearing 7 is against the limit step, and the two bearing glands 9 are respectively fixedly connected with the two support seats 3 and pressed against the outer ring of the corresponding bearing 7 on the second end face of the bearing 7 so that the outer ring of the bearing 7 is fixed between the limiting step and the bearing gland 9 .

The support mechanism also includes: a screw locking part 10, which is arranged on the side of the screw mandrel 2. When the screw locking part 10 is in the locked position, the screw mandrel 2 is locked. When the screw mandrel is locked When the part 10 is in the loose position, the power output source can drive the screw mandrel 2 to rotate. During the processing, the screw locking member 10 is adjusted to the locking position, so that the clamp assembly 5 tightly locks the workpiece during the processing, thereby improving the processing accuracy of the workpiece.

Specifically, the power output source may be a manual rotating wheel 11, which is fixedly connected to the screw mandrel 2, and the rotation of the manual rotating wheel 11 drives the screw mandrel 2 to rotate. The support mechanism also includes: a limit bolt 12, a first limit groove is provided on the manual runner 11, a second limit groove is provided at the connecting end of the screw mandrel 2 and the manual runner 11, and the limit bolt 12 is inserted into the second limit groove. One limit groove and the second limit groove, so that the hand wheel 11 is fixedly connected with the screw mandrel 2.

Referring to Fig. 3, the clamping unit 51 includes a clamping portion 511 and two clamping side plates 512, the first ends of the two clamping side plates 512 are respectively fixedly connected to the two ends of the clamping portion 511, and the two clamping Second ends of the side plates 512 are respectively connected to two ends of the corresponding sliders 4 . The support mechanism also includes: clamp limiter 13 , which is installed on the support mechanism bottom plate 1 and the clamping side plate 512 in the moving direction, and is used to limit the farthest distance between the two clamping units 51 .

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (10)

1. A support mechanism, comprising: the device comprises a supporting mechanism bottom plate, a screw rod, a power output source, two supporting seats, two sliding blocks and a clamp assembly;

two the supporting seat sets up relatively the both ends of supporting mechanism bottom plate, the both ends of lead screw assemble respectively two in the supporting seat and can be relative two the supporting seat rotates, the power take off end of power take off source with the one end of lead screw is connected and is driven the lead screw rotates, be equipped with the screw thread through-hole on the slider, the lead screw passes two in proper order the screw thread through-hole and two of slider threaded connection, two the screw thread opposite direction of slider, anchor clamps subassembly includes two mutually articulated clamping unit, and the link of two clamping unit respectively with one the slider is connected, works as when the lead screw rotates, drives two the slider draws close or keeps away from, in order to drive two the clamping end of clamping unit presss from both sides tightly each other or loosens.

2. The support mechanism of claim 1, further comprising: the screw thread through hole is formed in the middle of the sliding block, two limiting through holes are formed in two sides of the screw thread through hole respectively, the two guiding shafts are arranged on two sides of the screw rod respectively and are axially parallel to the screw rod, two ends of each guiding shaft are assembled in the supporting seat respectively, and one guiding shaft penetrates through the two limiting through holes in the sliding block relative to the same side of the screw thread through hole.

3. The support mechanism as claimed in claim 2, wherein each of the support seats is provided with a bearing, an outer ring of the bearing is fixed in the support seat, and both ends of the screw rod are respectively connected with inner rings of the two bearings.

4. The support mechanism of claim 3, further comprising: two locking nuts which are respectively in threaded connection with two ends of the screw rod, a first step shaft section, a second step shaft section and a third step shaft section with sequentially reduced shaft diameters are arranged at two ends of the screw rod, a first radial step surface is arranged between the first step shaft section and the second step shaft section, a second radial step surface is arranged between the second step shaft section and the third step shaft section, the first radial step surface is propped against the first end surface of the inner ring of the bearing, the second step shaft section is connected with the inner ring of the bearing, and the second end surface of the inner ring of the bearing exceeds the second radial step surface, the third step shaft section is provided with a thread matched with the locking nut, the locking nut is abutted against the second end faces of the inner rings of the bearings so as to lock the two ends of the screw rod in the inner rings of the two bearings.

5. The support mechanism of claim 4, further comprising: the bearing comprises two bearing glands, wherein a limiting step is arranged in the supporting seat, a first end face of an outer ring of the bearing is abutted against the limiting step, and the two bearing glands are fixedly connected with the two supporting seats respectively and pressed on a corresponding second end face of the outer ring of the bearing, so that the outer ring of the bearing is fixed between the limiting step and the bearing glands.

6. The support mechanism of claim 5, further comprising: the lead screw retaining member, the lead screw retaining member sets up the side of lead screw is worked as when the lead screw retaining member is in the locking position, the lead screw locking is worked as when the lead screw retaining member is located the pine position, the power output source can drive the lead screw rotates.

7. The support mechanism of claim 6, wherein the power output source is a manual wheel, the manual wheel is fixedly connected to the lead screw, and the lead screw is rotated by the manual wheel.

8. The support mechanism of claim 7, further comprising: the limiting bolt is inserted in the first limiting groove and the second limiting groove, so that the manual rotating wheel is fixedly connected with the screw rod.

9. The support mechanism as claimed in any one of claims 1 to 8, wherein the clamping unit comprises a clamping portion and two clamping side plates, first ends of the two clamping side plates are fixedly connected with two ends of the clamping portion respectively, and second ends of the two clamping side plates are connected with two ends of a corresponding sliding block respectively.

10. The support mechanism of claim 9, further comprising: the fixture limiting part is arranged on the bottom plate of the supporting mechanism and on the movement direction of the clamping side plates and used for limiting the farthest distance of the two clamping units.