CN219724777U - Broaching centering auxiliary fixtures - Google Patents
Broaching centering auxiliary fixtures Download PDFInfo
- Publication number
- CN219724777U CN219724777U CN202321306185.XU CN202321306185U CN219724777U CN 219724777 U CN219724777 U CN 219724777U CN 202321306185 U CN202321306185 U CN 202321306185U CN 219724777 U CN219724777 U CN 219724777U
- Authority
- CN
- China
- Prior art keywords
- base
- floating sleeve
- broaching
- centering
- guide rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 230000000694 effects Effects 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 2
- 230000008093 supporting effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000012916 structural analysis Methods 0.000 description 1
Landscapes
- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The utility model provides a broaching centering auxiliary tool, which comprises a base fixed with a bench surface of a broaching machine, a floating sleeve movably connected with the base in the vertical direction and an elastic device arranged between the floating sleeve and the base, wherein the floating sleeve is provided with a T-shaped round hole penetrating through the floating sleeve; the wider portion of the T-shaped round hole has a diameter equal to the outer diameter of the part to be broached, and the narrower portion has a diameter smaller than the outer diameter of the part to be broached but larger than the outer diameter of the broach. After the centering of the part and the broach II is completed, the part rebounds and rises under the action of working elastic force, the part cannot deviate, the final centering effect is good, and the working efficiency is improved. The tool not only plays a role in centering, but also has a supporting effect, and the tool can be used for manually freeing hands without processing by using hand-held parts, so that the tool has higher safety.
Description
Technical Field
The utility model relates to the technical field of tools for broaching machine tools, in particular to a broaching centering auxiliary tool.
Background
Among the mechanical parts, the internal and external spline fitting structures are common structures for transmitting motion and torque. The internal spline is obtained by various processing methods, and under the conditions of large batch of internal splines in the form of through holes, broaching machine processing is generally adopted, so that the efficiency is high, and the cost is low.
Because of the different conditions of the stroke, the rated pulling force of the broaching machine, the internal spline parameters of the part to be broached and the like, the broaching machine is designed to be completed by one time of broaching or can be completed by multiple times (more than two times) of broaching. In the case of multiple broaching, after the completion of the first broaching, the following broaching needs to be aligned with the teeth of the spline of the broach (i.e., during the following broaching, the spline teeth of the broach need to be aligned with the internal spline teeth of the part being broached after the first broaching). In the prior art, when the broaching machine is used for tooth alignment, the broaching tool is moved downwards to rotate the broached part for tooth alignment, the broached part is lifted manually after the spline teeth are aligned with the guide teeth of the broaching tool, the tool shank of the broaching tool extends into the internal key slot, the broached part is held by one hand, and the broaching is started by the other hand. This centering is very dangerous and the broach may hurt the hand. When the part is heavier, the operator holds the part with both hands and also needs to press the starting button with the help of a second person, so that the operation is inconvenient and the working efficiency is low. When the second person is not helped or after centering is finished, the part to be broached can only be placed on the workbench in the centering way as much as possible, and the part is likely to deviate, so that the spline teeth are misplaced with the guide teeth of the broach, and the machining quality is affected.
Disclosure of Invention
The utility model provides a broaching centering auxiliary tool, which aims at solving the technical problems of low working efficiency, poor centering quality and low safety in the conventional multiple broaching tooth centering process.
The above object of the present utility model is achieved by the following technical solutions:
the broaching centering auxiliary tool comprises a base fixed with a broaching machine workbench surface, a floating sleeve movably connected with the base in the vertical direction and an elastic device arranged between the floating sleeve and the base, wherein the floating sleeve is provided with a T-shaped round hole penetrating through the floating sleeve; the wider portion of the T-shaped round hole has a diameter equal to the outer diameter of the part to be broached, and the narrower portion has a diameter smaller than the outer diameter of the part to be broached but larger than the outer diameter of the broach.
The T-shaped round hole is a round hole with a wide upper part and a narrow lower part and a T-shaped section, the wider round hole is used for placing a part to be broached, and the narrower round hole is used for passing through a broach.
When centering, the part to be broached is pressed down and rotated, the floating sleeve is movably connected with the base in the vertical direction, a space is provided for the part to be pressed down, and the groove in the floating sleeve limits the radial direction of the part; and the elastic device between the floating sleeve and the base automatically returns after centering is completed. In the whole centering process, an operator only needs to lightly press the floating sleeve, and after tooth alignment is completed, the floating sleeve is loosened, so that the tooth alignment can be ensured all the time, the quality is better ensured, and the safety and the labor saving are realized.
According to the broaching centering auxiliary tool disclosed by the utility model, after the first broaching, the broaching tool (called as the broaching tool II for short) is replaced, the broaching tool II descends to a position slightly lower than the internal spline tooth opening of the part to stop, and as the end part of the broaching tool is generally a cylindrical tool handle, the part of the broaching tool II extending into the part cannot damage the internal spline of the part. And then lightly pressing down the part, rotating the part, centering the spline teeth of the part on the guide teeth of the broach, loosening the hand, keeping the spline teeth of the part and the second guide teeth of the broach in a centered state under the resilience of the elastic device, and starting the continuous button again until the broaching is completed.
Further, the floating sleeve movably connected with the base in the vertical direction means that: the base is provided with a guide hole, and the bottom of the floating sleeve is provided with a guide block matched with the guide hole.
The base is movably connected with the floating sleeve in various modes, namely a mode of matching a guide rail with a guide rod or a mode of matching a guide hole with a guide hole. The second mode is easier to process and has a better guiding function.
Furthermore, the top that the floating sleeve kept away from the base sets up the engaging lug that stretches out to the outside of floating sleeve, the base also is provided with the structure that stretches out to the outside, makes resilient means connect between floating sleeve and base.
The base is movably connected with the floating sleeve, so that a gap is formed between the base and the floating sleeve, and the elastic device can be arranged in the gap.
Further, the elastic device comprises a guide rod and a compression spring sleeved on the guide rod, the guide rod is movably connected with the floating sleeve, and the compression spring is positioned between the connecting lug and the base; one end of the guide rod is connected with the base, and the other end of the guide rod penetrates through the connecting lug and is provided with a limiting device for vertically limiting the guide rod.
Further, the limiting device is a nut; the base is provided with a threaded hole, one end of the guide rod is screwed into the threaded hole, the other end of the guide rod is provided with threads and extends out of the connecting lug, and the nut is matched with the threads to limit the vertical direction of the guide rod.
One end of the guide rod is screwed into the threaded hole of the base, and then the floating sleeve and the nut are sequentially installed, so that the installation is convenient.
Further, the spring force of the compression spring is greater than the sum of the weights of the part being broached and the floating sleeve. In the tooth aligning process, only slight pressing is needed to achieve the effect of saving power.
Compared with the prior art, the utility model has the following beneficial effects:
the broaching centering auxiliary tool disclosed by the utility model is arranged on a broaching machine workbench, when the broaching centering auxiliary tool is used, a part is placed in a T-shaped round hole of a tool floating sleeve, a broach penetrates through the tool to perform one-step drawing, and after one-step drawing is completed, the broach is withdrawn. And the second broach descends to a position slightly lower than the internal spline tooth opening of the part, the part is pressed down, the part is rotated, the spline tooth of the part is centered on the guide tooth of the broach, then the hand is loosened, under the rebound of the elastic device, the spline tooth of the part and the second guide tooth of the broach ensure the centering state, and the continuous button is started again until the broaching is completed.
After the centering of the part and the broach II is completed, the part rebounds and rises under the action of elastic force, the part cannot deviate, the final centering effect is good, and the working efficiency is improved. The tool not only plays a role in centering, but also has the functions of supporting and clamping, and the tool can be used for manually freeing two hands without processing by using handheld parts, so that the tool has higher safety.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
fig. 1 is a schematic structural view of a broaching centering aid.
Fig. 2 is a schematic view of the floating sleeve structure.
Fig. 3 is a schematic view of a base structure.
The device comprises a base 1, a guide hole 1a, a hole 1b, a floating sleeve 2, a T-shaped round hole 2a, a connecting lug 2b, a guide block 2c, a nut 3, a compression spring 4, a guide rod 5 and a broached part 6.
Detailed Description
Embodiments of the utility model are described in detail below with reference to the attached drawings, but the utility model can be implemented in a number of different ways, which are defined and covered by the claims.
Example 1
According to analysis of the background art, in the prior art, when a part with an internal spline is machined, the part can be machined by multiple times of broaching, and when some broaching machines need manual centering, the centering efficiency is low, the centering effect is poor, and the safety is low. Aiming at the defects, the utility model designs a broaching centering auxiliary tool, and the specific structural analysis is as follows:
the broaching centering auxiliary tool is shown in fig. 1, and comprises a base 1 fixed with a bench surface of a broaching machine, a floating sleeve 2 movably connected with the base 1 in the vertical direction, and an elastic device arranged between the floating sleeve 2 and the base 1, wherein the floating sleeve 2 is provided with a T-shaped round hole 2a penetrating through the floating sleeve 2 as shown in fig. 2; the wider portion of the T-shaped circular hole has a diameter equal to the outer diameter of the part 6 to be broached, and the narrower portion has a diameter smaller than the outer diameter of the part 6 to be broached but larger than the outer diameter of the broach.
The floating sleeve 2 movably connected with the base 1 in the vertical direction means that: the base 1 is provided with a guide hole 1a, and the bottom of the floating sleeve 2 is provided with a guide block 2c matched with the guide hole 1 a.
As shown in fig. 2, the top of the floating sleeve 2 far away from the base is provided with a connecting lug 2b extending towards the outer side of the floating sleeve 2, and the base 1 is also provided with a structure extending towards the outer side, so that the elastic device is connected between the floating sleeve 2 and the base 1.
As shown in fig. 1, the elastic device comprises a guide rod 5 and a compression spring 4 sleeved on the guide rod 5, the guide rod 5 is movably connected with the floating sleeve 2, and the compression spring 4 is positioned between the connecting lug 2b and the base 1; one end of the guide rod 5 is connected with the base 1, and the other end passes through the connecting lug 22 and is provided with a limiting device for vertically limiting the guide rod 5.
The limiting device is a nut 3; the base 1 is provided with a threaded hole 1b, one end of the guide rod 5 is screwed into the threaded hole 1b, the other end of the guide rod 5 is provided with threads and extends out of the connecting lug 2b, and the nut 3 is matched with the threads to limit the vertical direction of the guide rod 5.
The spring force of the compression spring 4 is greater than the sum of the weights of the part to be broached 6 and the floating sleeve 2.
During installation, the base 1 and the workbench are fixed, the guide block 2c of the floating sleeve 2 is inserted into the guide hole 1a of the base 1, one end of the guide rod 5 provided with the compression spring 4 penetrates through the connecting lug 2b and is inserted into the hole 1b of the base 1, and then the nut 3 is screwed up, so that the installation of the tool is completed. The part 6 to be broached is placed into the T-shaped round hole 2a of the floating sleeve 2, the broach penetrates through the part, after the first broach is withdrawn, the second broach is exchanged, the second broach descends to a position slightly lower than an internal spline tooth opening of the part, the part is pressed down, the part is rotated, spline teeth of the part are centered on guide teeth of the broach, then a hand is loosened, under the resilience of the elastic device, the spline teeth of the part and the second guide teeth of the broach guarantee the centering state, and the continuous button is started again until the broaching is completed.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the scope of the present utility model.
Claims (6)
1. The broaching centering auxiliary tool is characterized by comprising a base fixed with a bench surface of a broaching machine, a floating sleeve movably connected with the base in the vertical direction and an elastic device arranged between the floating sleeve and the base, wherein the floating sleeve is provided with a T-shaped round hole penetrating through the floating sleeve; the wider portion of the T-shaped round hole has a diameter equal to the outer diameter of the part to be broached, and the narrower portion has a diameter smaller than the outer diameter of the part to be broached but larger than the outer diameter of the broach.
2. The broaching centering aid of claim 1, wherein the floating sleeve movably connected to the base in a vertical direction means: the base is provided with a guide hole, and the bottom of the floating sleeve is provided with a guide block matched with the guide hole.
3. The auxiliary tool for broaching centering according to claim 2, wherein the top of the floating sleeve far from the base is provided with a connecting lug extending to the outer side of the floating sleeve, and the base is also provided with a structure extending to the outer side, so that the elastic device is connected between the floating sleeve and the base.
4. The broaching centering auxiliary tool according to claim 3, wherein the elastic device comprises a guide rod and a compression spring sleeved on the guide rod, the guide rod is movably connected with the floating sleeve, and the compression spring is positioned between the connecting lug and the base; one end of the guide rod is connected with the base, and the other end of the guide rod penetrates through the connecting lug and is provided with a limiting device for vertically limiting the guide rod.
5. The broaching centering aid of claim 4, wherein the stop device is a nut; the base is provided with a threaded hole, one end of the guide rod is screwed into the threaded hole, the other end of the guide rod is provided with threads and extends out of the connecting lug, and the nut is matched with the threads to limit the vertical direction of the guide rod.
6. The broaching centering aid of claim 5, wherein the compression spring has an elastic force greater than the sum of the weights of the part being broached and the floating sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321306185.XU CN219724777U (en) | 2023-05-26 | 2023-05-26 | Broaching centering auxiliary fixtures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321306185.XU CN219724777U (en) | 2023-05-26 | 2023-05-26 | Broaching centering auxiliary fixtures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219724777U true CN219724777U (en) | 2023-09-22 |
Family
ID=88053778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321306185.XU Active CN219724777U (en) | 2023-05-26 | 2023-05-26 | Broaching centering auxiliary fixtures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219724777U (en) |
-
2023
- 2023-05-26 CN CN202321306185.XU patent/CN219724777U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202344066U (en) | Vertical location device for hand tapping | |
| CN219724777U (en) | Broaching centering auxiliary fixtures | |
| CN211249217U (en) | Fixing clamp for milling machine | |
| CN210208743U (en) | Machining equipment for machine-building | |
| CN207239229U (en) | Tie-plate hinge type drill jig | |
| CN214382938U (en) | Machine tool for machining parts | |
| CN203679865U (en) | Lever jacking reverse locating device for manufacturing and locating of shells and disc parts | |
| CN112317631A (en) | Workpiece clamping mechanism of punching machine | |
| CN212977490U (en) | Plate machining clamp | |
| CN210099822U (en) | A regulation type mechanical clamping structure for processing of aluminum mould board | |
| CN209793226U (en) | Novel mechanical equipment capable of automatically loosening and clamping cutter for turret milling machine | |
| CN209935926U (en) | Clamp for boring | |
| CN113523450A (en) | Fixing device for sector gear machining and fixing method thereof | |
| CN115302277B (en) | Machining auxiliary equipment for rod piece machining | |
| CN211102762U (en) | Spline broach anchor clamps | |
| CN217914162U (en) | Air clamp type positioning tool | |
| CN213827268U (en) | Gear fixture device for machining spline holes of sector gears | |
| CN218657744U (en) | Device for machining threaded hole of ground hydrant | |
| CN211992202U (en) | Automobile transmission gear inner hole grinding equipment | |
| CN217474887U (en) | Translational finger-type chuck | |
| CN216707330U (en) | HSK handle of a knife broach seat equipment utensil | |
| CN210731648U (en) | Cutter capable of being quickly adjusted to horizontal position | |
| CN220278971U (en) | Quick and accurate sleeve changing device for production of engine connecting rod | |
| CN216577495U (en) | Fixing device for machine maintenance fitter | |
| CN219561511U (en) | Plate processing drilling machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |