CN219648613U - Thread rolling machine - Google Patents
Thread rolling machine Download PDFInfo
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- CN219648613U CN219648613U CN202320483038.3U CN202320483038U CN219648613U CN 219648613 U CN219648613 U CN 219648613U CN 202320483038 U CN202320483038 U CN 202320483038U CN 219648613 U CN219648613 U CN 219648613U
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- main shaft
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- thread rolling
- mounting frame
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- 238000005096 rolling process Methods 0.000 title claims abstract description 60
- 230000007246 mechanism Effects 0.000 claims abstract description 50
- 230000005540 biological transmission Effects 0.000 claims abstract description 38
- 238000013519 translation Methods 0.000 claims abstract description 18
- 238000009434 installation Methods 0.000 claims description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 238000003754 machining Methods 0.000 abstract description 5
- 238000012545 processing Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000641 cold extrusion Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
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Abstract
The utility model discloses a thread rolling machine, which comprises a base, wherein a fixed mounting frame and a movable mounting frame are respectively arranged on two opposite sides of the top end of the base, the bottom end of the movable mounting frame is slidably arranged on the top end of the base, the movable mounting frame is in driving connection with a translation clamping mechanism, a fixed main shaft and a movable main shaft are respectively arranged on two opposite sides of the fixed mounting frame and the movable mounting frame through mounting seats, thread rolling wheels are arranged on the outer sides of the fixed main shaft and the movable main shaft, and the ends of the fixed main shaft and the movable main shaft are respectively connected with the output end of a transmission mechanism positioned beside the base through universal connecting shafts; the universal connecting shaft comprises a first connecting end, an elastic sleeve and a second connecting end which are sequentially connected, the first connecting end and the second connecting end are respectively connected with the end part of the main shaft and the output end of the transmission mechanism, and a flexible mandrel is arranged inside the elastic sleeve along the axial direction. The device has a simple structure, ensures that the thread rolling wheel moves stably during equipment machining, has no lateral force, and further ensures the machining precision of workpieces.
Description
Technical Field
The utility model relates to the technical field of machining equipment, in particular to a thread rolling machine.
Background
The thread rolling machine is a multifunctional cold extrusion forming machine tool, and can carry out thread, straight line, twill rolling and other treatments on a workpiece in a cold state within the rolling force range; rolling of straight teeth, helical teeth and helical spline gears; straightening, reducing, rolling and various forming and rolling. The rolling thread cold rolling process is an advanced non-cutting process, can effectively improve the internal and surface quality of the workpiece, can obviously improve the fatigue strength and the torsional strength of the workpiece due to radial compressive stress generated during processing, and is an ideal process with high efficiency, energy conservation and low consumption.
The thread rolling machine in the prior art comprises a base, two mounting frames, two thread rolling wheels, a translation clamping mechanism, a main shaft and a transmission mechanism; two mounting brackets are installed on the top end of the base, a main shaft is installed on the opposite sides of the two mounting brackets through main shaft mounting seats respectively, thread rolling wheels are installed on the outer sides of the main shaft respectively, the end parts of the main shaft are respectively connected with a transmission mechanism in a transmission mode, one mounting bracket is connected with a translation clamping mechanism in a driving mode, and the thread rolling wheels on the two mounting brackets can move towards the directions close to or far away from each other under the driving of the translation clamping mechanism. When the thread rolling machine with the structure is used, when the thread rolling wheel on one of the installation racks is driven to move through the translation clamping mechanism, the end part of the main shaft is directly and rigidly connected with the end part of the transmission mechanism, and a certain lateral force is generated on the thread rolling wheel and the main shaft, so that a workpiece to be processed is easy to bend when entering between the two thread rolling wheels for thread rolling processing, and the processing precision is affected.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model provides the thread rolling machine, which has a simple structure, adopts a connecting structure with flexibility and guiding transmission performance between the main shaft and the transmission mechanism, can ensure that the rotating force of the transmission mechanism is accurately transmitted to each main shaft, simultaneously ensures that the thread rolling wheel moves stably without lateral force during the processing of equipment, and further ensures the processing precision of workpieces.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a thread rolling machine which comprises a base, a fixed mounting frame, a movable mounting frame, a fixed main shaft, a movable main shaft, a mounting seat, a thread rolling wheel, a translation clamping mechanism, a universal connecting shaft and a transmission mechanism, wherein the base is provided with a plurality of threads;
the fixed installation frame and the movable installation frame are respectively arranged on the two opposite sides of the top end of the base, the bottom end of the movable installation frame is slidably arranged on the top end of the base, the movable installation frame is in driving connection with the translation clamping mechanism, the fixed main shaft and the movable main shaft are respectively arranged on the two opposite sides of the fixed installation frame and the movable installation frame through installation seats, the thread rolling wheels are arranged on the outer sides of the fixed main shaft and the movable main shaft, and the ends of the fixed main shaft and the movable main shaft are respectively connected with the output end of the transmission mechanism positioned beside the base through universal connecting shafts;
the universal connecting shaft comprises a first connecting end, an elastic sleeve and a second connecting end which are sequentially connected, wherein the first connecting end and the second connecting end are respectively connected with the end part of the main shaft and the output end of the transmission mechanism, and a flexible mandrel is arranged inside the elastic sleeve along the axial direction.
The flexible mandrel is further improved in that the flexible mandrel comprises a rigid connecting block and steel balls, a plurality of rigid connecting blocks are sequentially arranged in the elastic sleeve along the axial direction, two rigid connecting blocks positioned at the end part are respectively connected with the first connecting end and the second connecting end, an arc-shaped positioning groove is formed in one side, opposite to the side, of each rigid connecting block, and the steel balls are slidably matched and arranged in the arc-shaped positioning grooves.
Through the cooperation of rigid connection block and steel ball in the flexible dabber, its rotation is nimble convenient, forms the rotation face of different angles, has higher wearability, bears outside moment of torsion, can also lead the transmission to the turning force simultaneously.
The further improvement is that the axle center of the first connecting end, the axle center of the second connecting end, the axle center of the rigid connecting block, the circle center of the arc-shaped positioning groove and the circle center of the steel ball are all positioned on the same straight line.
Through setting up, can further guarantee the accurate transmission of rotation force of drive mechanism to each corresponding main shaft on.
The further improvement is that the first connecting end and the second connecting end are respectively connected with the main shaft end and the output end of the transmission mechanism through U-shaped connecting pieces.
Through the structure, the components can be conveniently assembled and disassembled, and the subsequent maintenance is convenient.
The translation clamping mechanism is further improved in that the translation clamping mechanism comprises a hydraulic driving assembly and a control handle, the movable mounting frame faces one side of the fixed mounting frame and is provided with the hydraulic driving assembly, the output end of the hydraulic driving assembly is provided with the movable main shaft through a mounting seat, and a piston rod in the hydraulic driving assembly penetrates through the movable mounting frame and is connected with the control handle.
During operation, the staff manipulates the control handle to rotate, and the piston rod of the hydraulic driving assembly is driven to move in the cylinder body, so that the thread rolling wheel on the movable mounting frame is driven to move left and right through the hydraulic driving assembly, the distance between the two thread rolling wheels can be adjusted according to the diameter of a workpiece to be processed, and different processing requirements are met.
The further improvement lies in, fixed mounting bracket with flexible mounting bracket top all is equipped with the boss, be connected with two guide bars side by side between the boss, wherein the guide bar with flexible mounting bracket top's boss sliding connection.
Through setting up the guide bar, it leads the translation process about translation clamping mechanism drives the flexible mounting frame, has guaranteed that the thread rolling wheel left and right movement process is more steady on the flexible mounting frame.
The further improvement is that a discharging guide plate which is arranged obliquely downwards is arranged between the base and the transmission mechanism.
During operation, the workpiece after thread rolling is guided out from the rear ends of the two thread rolling wheels, falls onto the discharging guide plate under the action of gravity, and slides down into the material frame along the discharging guide plate.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, the ends of the fixed main shaft and the movable main shaft are respectively connected with the output end of the transmission mechanism through the universal connecting shaft, the universal connecting shaft consists of the first connecting end, the elastic sleeve and the second connecting end, the flexible mandrel is arranged in the elastic sleeve, the rigid hard link is changed into flexible soft connection under the matching action of the elastic sleeve and the internal flexible mandrel, the external torque is borne, excessive axial movement can be prevented, the precise transmission of the rotating force of the transmission mechanism to each main shaft can be ensured, meanwhile, the stable movement of the thread rolling wheels during the processing of the equipment is ensured, no lateral force is generated, the distance between the two thread rolling wheels is more precise after the adjustment, and the processing precision of a workpiece is ensured.
Drawings
The utility model will be described in further detail with reference to the drawings and the specific embodiments.
FIG. 1 is a side view of a thread rolling machine of the present utility model;
FIG. 2 is a top view of the thread rolling machine of the present utility model;
FIG. 3 is a schematic view of the inner structure of the elastic sleeve according to the present utility model;
wherein, the specific reference numerals are as follows: the device comprises a base 1, a fixed mounting frame 2, a movable mounting frame 3, a boss 4, a guide rod 5, a fixed main shaft 6, a movable main shaft 7, a mounting seat 8, a thread rolling wheel 9, a translational clamping mechanism 10, a hydraulic driving assembly 11, a control handle 12, a universal connecting shaft 13, a first connecting end 14, a U-shaped connecting piece 15, an elastic sleeve 16, a flexible mandrel 17, a rigid connecting block 18, an arc-shaped positioning groove 19, a steel ball 20, a second connecting end 21, a transmission mechanism 22 and a discharging guide plate 23.
Detailed Description
The embodiment of the utility model discloses a thread rolling machine, which is shown in fig. 1 to 3 and comprises a base 1, a fixed mounting frame 2, a movable mounting frame 3, a fixed main shaft 6, a movable main shaft 7, a mounting seat 8, a thread rolling wheel 9, a translation clamping mechanism 10, a universal connecting shaft 13 and a transmission mechanism 22;
the two opposite sides of the top end of the base 1 are respectively provided with a fixed installation frame 2 and a movable installation frame 3, the bottom end of the movable installation frame 3 is slidably installed at the top end of the base 1, the movable installation frame 3 is in driving connection with a translation clamping mechanism 10, one opposite sides of the fixed installation frame 2 and the movable installation frame 3 are respectively provided with a fixed main shaft 6 and a movable main shaft 7 through installation seats 8, the outer sides of the fixed main shaft 6 and the movable main shaft 7 are respectively provided with thread rolling wheels 9, the ends of the fixed main shaft 6 and the movable main shaft 7 are respectively connected with the output end of a transmission mechanism 22 positioned beside the base 1 through universal connection shafts 13, and in operation, the translation clamping mechanism 10 drives the thread rolling wheels 9 on the movable installation frame 3 and the movable main shaft 7 to move leftwards or rightwards so as to adjust the distance between the two thread rolling wheels 9 to adapt to the diameter of a workpiece to be processed, and the transmission mechanism 22 transmits rotating force to the fixed main shaft 6 and the movable main shaft 7 through the universal connection shafts 13 so as to drive the two thread rolling wheels 9 to rotate, and the outer sides of the workpiece to be processed;
the universal connecting shaft 13 comprises a first connecting end 14, an elastic sleeve 16 and a second connecting end 21 which are sequentially connected, the first connecting end 14 and the second connecting end 21 are respectively connected with the end part of a main shaft and the output end of a transmission mechanism 22, a flexible mandrel 17 is arranged inside the elastic sleeve 16 along the axial direction, the rigid hard link before is changed into flexible soft connection under the matching action of the elastic sleeve 16 and the flexible mandrel 17 inside the elastic sleeve, external torque is borne, excessive axial movement can be prevented, accurate transmission of the rotating force of the transmission mechanism 22 to each main shaft can be ensured, meanwhile, stable movement of thread rolling wheels 9 during equipment machining is ensured, no lateral force exists, the distance between the two thread rolling wheels 9 is more accurate after adjustment, and the machining precision of workpieces is ensured.
The flexible mandrel 17 includes a rigid connection block 18 and a steel ball 20, a plurality of rigid connection blocks 18 are sequentially installed inside the elastic sleeve 16 along the axial direction, two rigid connection blocks 18 located at the end portions are respectively connected with the first connection end 14 and the second connection end 21, an arc-shaped positioning groove 19 is formed in one side, opposite to the side, of each two adjacent rigid connection blocks 18, of each rigid connection block, and the steel ball 20 is installed in a sliding fit manner in the arc-shaped positioning groove 19. Through the cooperation of the rigid connecting block 18 and the steel ball 20 in the flexible mandrel 17, the rotation is flexible and convenient, the rotating surfaces with different angles are formed, the wear resistance is higher, the external torque is born, and meanwhile, the guiding transmission of the rotating force can be realized.
The axis of the first connecting end 14, the axis of the second connecting end 21, the axis of the rigid connecting block 18, the center of the arc-shaped positioning slot 19 and the center of the steel ball 20 are all on the same straight line. By the arrangement, the precise transmission of the rotational force of the transmission mechanism 22 to each corresponding spindle can be further ensured.
The ends of the first connecting end 14 and the second connecting end 21 are respectively connected with the end of the main shaft and the output end of the transmission mechanism 22 through U-shaped connecting pieces 15. Through the structure, the components can be conveniently assembled and disassembled, and the subsequent maintenance is convenient.
The translational clamping mechanism 10 comprises a hydraulic driving assembly 11 and a control handle 12, the hydraulic driving assembly 11 is installed on one side of the movable mounting frame 3, which faces the fixed mounting frame 2, the output end of the hydraulic driving assembly 11 is provided with a movable main shaft 7 through a mounting seat 8, and a piston rod in the hydraulic driving assembly 11 penetrates through the movable mounting frame 3 and is connected with the control handle 12. During operation, a worker manipulates the control handle 12 to rotate, and drives the piston rod of the hydraulic driving assembly 11 to move in the cylinder body, so that the hydraulic driving assembly 11 drives the thread rolling wheels 9 on the movable mounting frame 3 to move left and right, and the distance between the two thread rolling wheels 9 can be adjusted according to the diameter of a workpiece to be processed, so that different processing requirements are met.
Wherein, fixed mounting bracket 2 and flexible mounting bracket 3 top all are equipped with boss 4, are connected with two guide bars 5 side by side between the boss 4, and wherein guide bar 5 and flexible mounting bracket 3 top's boss 4 sliding connection. Through setting up guide bar 5, it leads the translation process about translation clamping mechanism 10 drives flexible mounting frame 3, has guaranteed that the roll thread wheel 9 on the flexible mounting frame 3 moves the process about more steadily.
Wherein, a discharge guide plate 23 which is arranged obliquely downwards is arranged between the base 1 and the transmission mechanism 22. During operation, the workpiece after thread rolling is guided out from the rear ends of the two thread rolling wheels 9, falls onto the discharge guide plate 23 under the action of gravity, and slides down the discharge guide plate 23 into the material frame.
In summary, the thread rolling machine has a simple structure, adopts a connecting structure with flexibility and guiding transmission performance between the main shaft and the transmission mechanism 22, can ensure that the rotating force of the transmission mechanism 22 is accurately transmitted to each main shaft, and simultaneously ensures that the thread rolling wheel 9 moves stably without lateral force during the processing of equipment, thereby ensuring the processing precision of workpieces.
The foregoing description of the utility model has been presented for purposes of illustration and description, and is not intended to be limiting. Several simple deductions, modifications or substitutions may also be made by a person skilled in the art to which the utility model pertains, based on the idea of the utility model.
Claims (7)
1. The thread rolling machine is characterized by comprising a base, a fixed mounting frame, a movable mounting frame, a fixed main shaft, a movable main shaft, a mounting seat, a thread rolling wheel, a translation clamping mechanism, a universal connecting shaft and a transmission mechanism;
the fixed installation frame and the movable installation frame are respectively arranged on the two opposite sides of the top end of the base, the bottom end of the movable installation frame is slidably arranged on the top end of the base, the movable installation frame is in driving connection with the translation clamping mechanism, the fixed main shaft and the movable main shaft are respectively arranged on the two opposite sides of the fixed installation frame and the movable installation frame through installation seats, the thread rolling wheels are arranged on the outer sides of the fixed main shaft and the movable main shaft, and the ends of the fixed main shaft and the movable main shaft are respectively connected with the output end of the transmission mechanism positioned beside the base through universal connecting shafts;
the universal connecting shaft comprises a first connecting end, an elastic sleeve and a second connecting end which are sequentially connected, wherein the first connecting end and the second connecting end are respectively connected with the end part of the main shaft and the output end of the transmission mechanism, and a flexible mandrel is arranged inside the elastic sleeve along the axial direction.
2. The thread rolling machine according to claim 1, wherein the flexible mandrel comprises a rigid connection block and a steel ball, a plurality of rigid connection blocks are sequentially installed inside the elastic sleeve along the axial direction, two rigid connection blocks located at the end portions are respectively connected with the first connection end and the second connection end, an arc-shaped positioning groove is formed in one side, opposite to the adjacent two rigid connection blocks, of each rigid connection block, and the steel ball is installed in a sliding fit mode in the arc-shaped positioning groove.
3. The thread rolling machine of claim 2, wherein the axis of the first connecting end, the axis of the second connecting end, the axis of the rigid connecting block, the center of the arc-shaped positioning groove and the center of the steel ball are all on the same straight line.
4. The thread rolling machine of claim 1, wherein the first and second connection ends are connected to the spindle end and the output end of the drive mechanism, respectively, by a U-shaped connection.
5. The thread rolling machine according to claim 1, wherein the translational clamping mechanism comprises a hydraulic driving assembly and a control handle, the hydraulic driving assembly is installed on one side of the movable mounting frame, which faces the fixed mounting frame, the output end of the hydraulic driving assembly is provided with the movable main shaft through a mounting seat, and a piston rod in the hydraulic driving assembly penetrates through the movable mounting frame and is connected with the control handle.
6. The thread rolling machine according to claim 1, wherein the top ends of the fixed mounting frame and the movable mounting frame are respectively provided with a boss, and two guide rods are connected between the bosses side by side, wherein the guide rods are in sliding connection with the bosses at the top ends of the movable mounting frame.
7. The thread rolling machine as claimed in claim 1, wherein a discharge guide plate is installed between the base and the transmission mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320483038.3U CN219648613U (en) | 2023-03-14 | 2023-03-14 | Thread rolling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320483038.3U CN219648613U (en) | 2023-03-14 | 2023-03-14 | Thread rolling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219648613U true CN219648613U (en) | 2023-09-08 |
Family
ID=87876975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320483038.3U Active CN219648613U (en) | 2023-03-14 | 2023-03-14 | Thread rolling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219648613U (en) |
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2023
- 2023-03-14 CN CN202320483038.3U patent/CN219648613U/en active Active
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