CN209935907U - Fixture device for machining cross hole of steering shaft of forklift - Google Patents
Fixture device for machining cross hole of steering shaft of forklift Download PDFInfo
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- CN209935907U CN209935907U CN201920570539.9U CN201920570539U CN209935907U CN 209935907 U CN209935907 U CN 209935907U CN 201920570539 U CN201920570539 U CN 201920570539U CN 209935907 U CN209935907 U CN 209935907U
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- positioning
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Abstract
The utility model discloses a fixture device for processing a cross hole of a steering shaft of a forklift, which comprises a workpiece and a fixture base, wherein the fixture base is fixedly connected with a machine tool, the middle part of the upper part of the fixture base is provided with a positioning fixture, the positioning fixture comprises a lower positioning fixture and an upper positioning fixture, the surface of the upper positioning fixture, which is contacted with the workpiece, is provided with an inverted V-shaped groove, the surface of the lower positioning fixture, which is contacted with the workpiece, is provided with a positive V-shaped groove, the workpiece is arranged in a gap enclosed by two V-shaped grooves, a clamping support plate is arranged above the upper positioning fixture, the clamping support plate is connected with the positioning fixture through a guide shaft, a clamping screw body is also connected between the clamping support plate and the upper positioning fixture, the clamping screw body passes through the clamping support plate and is inserted into the upper positioning fixture, the clamping screw body is rotated to drive the upper positioning clamp to move up and down so as to clamp or loosen a workpiece. The utility model discloses shorten the tight time of dismantling of work piece location clamp in the course of working, improved the utilization ratio of product production efficiency and lathe.
Description
Technical Field
The utility model relates to a machine-building processing technology field, concretely relates to fixture device of processing fork truck steering spindle cross hole.
Background
The function of the steering shaft of the forklift is to transmit the steering torque of a driver acting on a steering wheel to a steering gear, the upper part of the steering shaft is fixedly connected with the steering wheel, and the lower part of the steering shaft is connected with the steering gear.
The forklift steering shaft is a fork-shaped workpiece, at present, a machining method for drilling a cross hole on a left steering shaft of the forklift is to position by using a steering shaft hole spigot seat, and drill two cross holes on two devices respectively in a mode of clamping by using a steering shaft hole end face pressing plate.
However, the existing forklift left steering shaft drilling cross hole shaft hole is positioned through the spigot seat, the axial size of the steering shaft cross hole can be indirectly guaranteed in an end face pressing plate clamping mode, the machining size error is increased, the workpiece quality is not easy to guarantee, mechanical clamping is achieved, two crossed holes are drilled and are respectively machined on two devices, the time for positioning and clamping the workpiece and the time for disassembling the workpiece are prolonged in the machining process, the production efficiency and the utilization rate of a lathe are further affected, and the connection problem of front and rear processes in the workpiece process route is also considered in the process.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to the not enough of above-mentioned prior art, a fixture device of processing fork truck steering spindle cross hole is provided.
In order to realize the technical purpose, the utility model discloses the technical scheme who takes does:
a fixture device for processing a cross hole of a steering shaft of a forklift, wherein: the clamp comprises a clamp base, waist holes on two sides of the clamp base are fixedly connected with a machine tool through T-shaped bolts, a positioning clamp is arranged in the middle of the clamp base, the positioning clamp comprises an upper positioning clamp and a lower positioning clamp, the lower positioning clamp is fixedly arranged on the clamp base, the upper positioning clamp is arranged above the lower positioning clamp, a clamping support plate is arranged above the upper positioning clamp, the clamping support plate and the positioning clamp are connected through a guide shaft, the upper end of the guide shaft is fixed on the clamping support plate, the lower end of the guide shaft sequentially penetrates through the clamping support plate and the upper positioning clamp and is inserted into the lower positioning clamp, an inverted V-shaped groove is formed in the lower bottom surface of the upper positioning clamp, a positive V-shaped groove is formed in the upper bottom surface of the lower positioning clamp, a workpiece is arranged in a gap defined by the two V-shaped grooves, and a clamping screw body is connected between the clamping support plate and the upper positioning, the clamping screw body penetrates through the clamping support plate and is inserted into the upper positioning fixture, and the clamping screw body can drive the upper positioning fixture to move up and down relative to the clamping support plate so as to clamp or loosen a workpiece;
the left end face of the workpiece machining end is positioned through a support nail, the support nail is horizontally flush with the workpiece and fixed on a boss, the boss is installed on a clamp base, the upper end of the boss is connected with a drill bushing connecting plate, and a drill bushing is connected to the drill bushing connecting plate at the position above the workpiece machining end;
the fixture base is also provided with two floating positioning and supporting devices, and each floating positioning and supporting device comprises a first floating positioning and supporting device for fixing the horizontal placement of the connecting end of the workpiece and a second floating positioning and supporting device for fixing the vertical placement of the connecting end of the workpiece;
the first floating positioning and supporting device comprises a support, a first floating supporting pin, a first adjusting nut and a first pressure spring, wherein the lower end of the support is fixed on the side part of the clamp base, a transverse through hole is formed in the upper end of the support, the first adjusting nut is installed in the through hole, the first floating supporting pin is connected to the first adjusting nut through the first pressure spring, and the first pressure spring is driven to control the first floating supporting pin to move to a position where the first floating supporting pin can be clamped at the connecting end of a workpiece by moving the first adjusting nut to move horizontally;
the second floating positioning and supporting device comprises a second pressure spring, a second floating supporting pin and a second adjusting nut, the second adjusting nut is installed in the through hole in the base, the second floating supporting pin is connected to the second adjusting nut through the second pressure spring, and the second pressure spring is driven to control the second floating supporting pin to move to the position where the second pressure spring can be clamped at the connecting end of the workpiece through moving the second adjusting nut to move vertically.
In order to optimize the technical scheme, the specific measures adopted further comprise:
the two guide shafts are symmetrically distributed on two sides of the clamping screw body respectively, the upper ends of the guide shafts are fixed on the clamping support plate through nuts, the upper positioning fixture is provided with two through holes, the two guide shafts penetrate through the through holes, and the diameter of each through hole is slightly larger than that of each guide shaft.
Two threaded holes are formed in the lower positioning fixture, and the lower end of the guide shaft is in threaded connection with the two threaded holes in the lower positioning fixture.
A T-shaped groove is formed in the middle of the upper positioning clamp, the clamping screw body is a T-shaped screw, the lower end of the clamping screw body is in a small cylindrical shape, and the lower end of the clamping screw body is inserted into the T-shaped groove.
The clamping screw body is in threaded connection with the clamping support plate.
The through holes for connecting the first adjusting nut and the second adjusting nut are stepped holes, the upper part is small, the lower part is large, threads are processed at the lower end of the large hole, and the two adjusting nuts are respectively in threaded connection with the two through holes.
The upper parts of the first floating supporting pin and the second floating supporting pin are both conical, the lower parts of the first floating supporting pin and the second floating supporting pin are provided with holes, and the first pressure spring and the second pressure spring are respectively connected into the holes of the two supporting pins.
The V-shaped angles of the regular V-shaped groove and the inverted V-shaped groove are both 90 degrees.
The lower end of the bracket is connected with the side surface of the clamp base through a screw.
The utility model relates to a beneficial effect of anchor clamps device of processing fork truck steering spindle cross hole:
the utility model provides a fixture device for processing a cross hole of a steering shaft of a forklift, which can complete the processing of two cross holes by twice positioning and clamping on one processing device; the steering shaft is accurately positioned by the arrangement of the V-shaped groove and the two floating supporting pins, the requirement on machining size is met, the time for positioning and clamping the workpiece and disassembling the workpiece in the machining process is shortened, the problem of front-back connection in a process route is solved, and the production efficiency of products and the utilization rate of machine tool equipment are improved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic top view of the structure of the present invention;
FIG. 3 is a schematic view of the structural workpiece viewed from the right side;
fig. 4 is a schematic view of the structure workpiece rotated by 90 degrees from the right side.
The reference signs are: the device comprises a workpiece 1, a clamp base 2, a positioning clamp 3, a lower positioning clamp 31, an upper positioning clamp 32, an inverted V-shaped groove 33, a positive V-shaped groove 34, a clamping support plate 4, a guide shaft 5, a clamping screw body 6, a support nail 7, a boss 8, a drill bushing connecting plate 9, a drill bushing 10, a first floating positioning and supporting device 11, a support 12, a first floating supporting pin 13, a first adjusting nut 14, a first pressure spring 15, a second floating positioning and supporting device 16, a second pressure spring 17, a second floating supporting pin 18, a second adjusting nut 19 and a workpiece connecting end 20.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
As shown in fig. 1 to 4, the utility model relates to a fixture device for processing a cross hole of a steering shaft of a forklift, wherein: comprises a clamp base 2, waist holes at two sides of the clamp base 2 are fixedly connected with a machine tool through T-shaped bolts, a positioning clamp 3 is arranged at the upper middle part of the clamp base 2, the positioning clamp 3 comprises an upper positioning clamp 31 and a lower positioning clamp 32, the lower positioning clamp 32 is fixedly arranged on the clamp base 2, the upper positioning clamp 31 is arranged above the lower positioning clamp 32, a clamping support plate 4 is arranged above the upper positioning clamp 31, the clamping support plate 4 is connected with the positioning clamp 3 through a guide shaft 5, the upper end of the guide shaft 5 is fixed on the clamping support plate 4, the lower end of the guide shaft 5 sequentially passes through the clamping support plate 4 and the upper positioning clamp 31 and is inserted into the lower positioning clamp 32, an inverted V-shaped groove 33 is arranged on the lower bottom surface of the upper positioning clamp 31, a positive V-shaped groove 34 is arranged on the upper bottom surface of the lower positioning clamp 32, a workpiece 1 is arranged in a gap surrounded by the two V-shaped, the clamping screw body 6 penetrates through the clamping support plate 4 and is inserted into the upper positioning fixture 31, and the clamping screw body 6 can drive the upper positioning fixture 31 to move up and down relative to the clamping support plate 4 so as to clamp or loosen the workpiece 1;
the left end face of the processing end of the workpiece 1 is positioned through a support nail 7, the support nail 7 is horizontally flush with the workpiece 1 and fixed on a boss 8, the boss 8 is installed on the clamp base 2, the upper end of the boss 8 is connected with a drill bush connecting plate 9, and the drill bush connecting plate 9 is connected with a drill bush 10 at the position above the processing end of the workpiece 1;
two floating positioning support devices are further mounted on the clamp base 2, and each floating positioning support device comprises a first floating positioning support device 11 used for fixing the horizontal placement of the workpiece connecting end 20 and a second floating positioning support device 16 used for fixing the vertical placement of the workpiece connecting end 20;
the first floating positioning and supporting device 11 comprises a support 12, a first floating supporting pin 13, a first adjusting nut 14 and a first pressure spring 15, the lower end of the support 12 is fixed on the side part of the clamp base 2, a transverse through hole is formed in the upper end of the support, the first adjusting nut 14 is installed in the through hole, the first floating supporting pin 13 is connected to the first adjusting nut 14 through the first pressure spring 15, and the first pressure spring 15 is driven to control the first floating supporting pin 13 to move to a position where the first floating supporting pin can be clamped on the workpiece connecting end 20 by moving the first adjusting nut 14 to move horizontally;
the second floating positioning support device 16 comprises a second pressure spring 17, a second floating support pin 18 and a second adjusting nut 19, the second adjusting nut 19 is installed in a through hole in the base, the second floating support pin 18 is connected to the second adjusting nut 19 through the second pressure spring 17, and the second pressure spring 17 is driven to control the second floating support pin 18 to move to a position where the second floating support pin 18 can be clamped at the workpiece connecting end 20 by moving the second adjusting nut 14 to move vertically.
In this embodiment, two guide shafts are respectively and symmetrically distributed on two sides of the clamping screw body 6, the upper end of each guide shaft 5 is fixed on the clamping support plate 4 through a nut, the upper positioning fixture 31 is provided with two through holes, the two guide shafts 5 penetrate through the through holes, and the diameter of each through hole is slightly larger than that of each guide shaft 5.
In this embodiment, two threaded holes are formed in the lower positioning fixture 32, and the lower end of the guide shaft 5 is connected to the two threaded holes in the lower positioning fixture 32 through threads.
In this embodiment, a T-shaped groove is formed in the middle of the upper positioning fixture 31, the clamping screw body 6 is a T-shaped screw, and the lower end of the clamping screw body 6 is inserted into the T-shaped groove.
In this embodiment, the clamping screw body 6 is screwed to the clamping plate 4.
In this embodiment, the through holes for connecting the first adjusting nut 14 and the second adjusting nut 19 are stepped holes, which are small at the top and large at the bottom, and threads are processed at the lower end of the large hole, and the two adjusting nuts are respectively in threaded connection with the two through holes.
In this embodiment, the upper portions of the first floating support pin 13 and the second floating support pin 18 are both tapered, the lower portions thereof are provided with holes, and the first compression spring 15 and the second compression spring 17 are respectively connected to the holes of the two support pins.
In this embodiment, the V-shaped angles of the positive V-shaped groove 34 and the negative V-shaped groove 33 are both 90 °.
In this embodiment, the lower end of the bracket 12 is connected to the side surface of the clamp base 2 by screws.
A processing method for processing a cross hole of a steering shaft of a forklift specifically comprises the following steps:
taking fig. 1 to 4 as an example, step a: the first adjusting nut 14 and the second adjusting nut 19 are adjusted in advance, so that the first floating supporting pin 13 and the second floating supporting pin 18 are adjusted to be in proper positions clamped in the middle of the workpiece connecting end 20, then the lower positioning clamp 32 is installed and fixed on a machine tool, the adjusting clamping screw body 6 is rotated to move upwards, the upper positioning clamp 31 is controlled to be far away from the lower positioning clamp 32, then the workpiece 1 is placed, the left end face of the processing end of the workpiece 1 is positioned through the supporting nail 7, the workpiece connecting end 20 is horizontally placed and positioned through the first floating supporting pin 13, the first floating supporting pin 13 is clamped between the workpiece connecting ends 20, finally the adjusting clamping screw body 6 is rotated to move downwards, the upper positioning clamp 31 is controlled to be close to the lower positioning clamp 32 and clamp the workpiece 1, positioning is completed, and then a pair of holes in the cross holes are processed through the drill bushing 10.
And B: the rotary adjusting clamping screw body 6 moves upwards, the upper positioning clamp 31 is controlled to be far away from the lower positioning clamp 32, then the workpiece 1 is rotated by 90 degrees, the workpiece connecting end 20 is vertically downwards supported and positioned through the second floating supporting pin 18 on the clamp base 2, the second floating supporting pin 18 is clamped in the middle of the workpiece connecting end 20, then the rotary adjusting clamping screw body 6 moves downwards, the upper positioning clamp 31 is controlled to be close to the lower positioning clamp 32 and fixedly clamp the workpiece 1, positioning is completed, and then another pair of holes in the cross hole are machined through the drill bushing 10.
Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, a plurality of modifications and decorations without departing from the principle of the present invention should be considered as the protection scope of the present invention.
Claims (9)
1. The utility model provides a fixture device of processing fork truck steering spindle cross hole which characterized in that: comprises a clamp base (2), waist holes at two sides of the clamp base (2) are fixedly connected with a machine tool through T-shaped bolts, a positioning clamp (3) is arranged in the middle of the upper part of the clamp base (2), the positioning clamp (3) comprises an upper positioning clamp (31) and a lower positioning clamp (32), the lower positioning clamp (32) is fixedly arranged on the clamp base (2), the upper positioning clamp (31) is arranged above the lower positioning clamp (32), a clamping support plate (4) is arranged above the upper positioning clamp (31), the clamping support plate (4) is connected with the positioning clamp (3) through a guide shaft (5), the upper end of the guide shaft (5) is fixed on the clamping support plate (4), the lower end of the guide shaft sequentially penetrates through the clamping support plate (4) and the upper positioning clamp (31) to be inserted into the lower positioning clamp (32), an inverted V-shaped groove (33) is formed in the lower bottom surface of the upper positioning clamp (31), a positive V-shaped groove (34) is formed in the upper bottom surface of the lower positioning fixture (32), the workpiece (1) is arranged in a gap defined by the two V-shaped grooves, a clamping screw body (6) is connected between the clamping support plate (4) and the upper positioning fixture (31), the clamping screw body (6) penetrates through the clamping support plate (4) and is inserted into the upper positioning fixture (31), and the clamping screw body (6) can drive the upper positioning fixture (31) to move up and down relative to the clamping support plate (4) to clamp or loosen the workpiece (1);
the left end face of the processing end of the workpiece (1) is positioned through a support nail (7), the support nail (7) is horizontally flush with the workpiece (1) and fixed on a boss (8), the boss (8) is installed on a clamp base (2), the upper end of the boss (8) is connected with a drill bushing connecting plate (9), and a drill bushing (10) is connected to the position, above the processing end of the workpiece (1), of the drill bushing connecting plate (9);
the fixture base (2) is also provided with two floating positioning and supporting devices, and each floating positioning and supporting device comprises a first floating positioning and supporting device (11) used for fixing the horizontal placement of the workpiece connecting end (20) and a second floating positioning and supporting device (16) used for fixing the vertical placement of the workpiece connecting end (20);
the first floating positioning support device (11) comprises a support (12), a first floating supporting pin (13), a first adjusting nut (14) and a first pressure spring (15), the lower end of the support (12) is fixed on the side portion of the clamp base (2), a transverse through hole is formed in the upper end of the support, the first adjusting nut (14) is installed in the through hole, the first floating supporting pin (13) is connected to the first adjusting nut (14) through the first pressure spring (15), and the first pressure spring (15) is driven to control the first floating supporting pin (13) to move to a position where the first floating supporting pin can be clamped at the workpiece connecting end (20) by moving the first adjusting nut (14) to move horizontally;
the second floating positioning and supporting device (16) comprises a second pressure spring (17), a second floating supporting pin (18) and a second adjusting nut (19), the second adjusting nut (19) is installed in the through hole in the base, the second floating supporting pin (18) is connected to the second adjusting nut (19) through the second pressure spring (17), and the second pressure spring (17) is driven to control the second floating supporting pin (18) to move to the position where the workpiece connecting end (20) can be clamped through moving the second adjusting nut (19) to move vertically.
2. The clamping device for machining the cross hole of the steering shaft of the forklift as recited in claim 1, wherein: the two guide shafts are symmetrically distributed on two sides of the clamping screw body (6) respectively, the upper end of each guide shaft (5) is fixed on the clamping support plate (4) through a nut, the upper positioning fixture (31) is provided with two through holes, the two guide shafts (5) penetrate through the through holes, and the diameter of each through hole is slightly larger than that of each guide shaft (5).
3. The clamping device for machining the cross hole of the steering shaft of the forklift as recited in claim 1, wherein: two threaded holes are formed in the lower positioning clamp (32), and the lower end of the guide shaft (5) is in threaded connection with the two threaded holes in the lower positioning clamp (32).
4. The clamping device for machining the cross hole of the steering shaft of the forklift as recited in claim 1, wherein: a T-shaped groove is formed in the middle of the upper positioning clamp (31), the clamping screw body (6) is a T-shaped screw, and the lower end of the clamping screw body (6) is inserted into the T-shaped groove.
5. The clamping device for machining the cross hole of the steering shaft of the forklift as recited in claim 4, wherein: the clamping screw body (6) is in threaded connection with the clamping support plate (4).
6. The clamping device for machining the cross hole of the steering shaft of the forklift as recited in claim 1, wherein: the through holes for connecting the first adjusting nut (14) and the second adjusting nut (19) are stepped holes, the upper part is small, the lower part is large, threads are processed at the lower end of the large hole, and the two adjusting nuts are respectively in threaded connection with the two through holes.
7. The clamping device for machining the cross hole of the steering shaft of the forklift as recited in claim 1, wherein: the upper parts of the first floating supporting pin (13) and the second floating supporting pin (18) are both conical, the lower parts of the first floating supporting pin and the second floating supporting pin are provided with holes, and the first pressure spring (15) and the second pressure spring (17) are respectively connected into the holes of the two supporting pins.
8. The clamping device for machining the cross hole of the steering shaft of the forklift as recited in claim 1, wherein: the V-shaped angles of the positive V-shaped groove (34) and the reverse V-shaped groove (33) are both 90 degrees.
9. The clamping device for machining the cross hole of the steering shaft of the forklift as recited in claim 1, wherein: the lower end of the bracket (12) is connected with the side surface of the clamp base (2) through a screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920570539.9U CN209935907U (en) | 2019-04-24 | 2019-04-24 | Fixture device for machining cross hole of steering shaft of forklift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920570539.9U CN209935907U (en) | 2019-04-24 | 2019-04-24 | Fixture device for machining cross hole of steering shaft of forklift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209935907U true CN209935907U (en) | 2020-01-14 |
Family
ID=69129736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920570539.9U Expired - Fee Related CN209935907U (en) | 2019-04-24 | 2019-04-24 | Fixture device for machining cross hole of steering shaft of forklift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209935907U (en) |
-
2019
- 2019-04-24 CN CN201920570539.9U patent/CN209935907U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201117 Address after: No. 195, South Rehe Road, Gulou District, Nanjing City, Jiangsu Province Patentee after: Nanjing Monte tech Environmental Protection Technology Co.,Ltd. Address before: Longpan road Xuanwu District of Nanjing city of Jiangsu Province, No. 159 210037 Patentee before: NANJING FORESTRY University |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200114 Termination date: 20210424 |
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| CF01 | Termination of patent right due to non-payment of annual fee |