CN217483426U - Utensil is examined to belt pulley hole degree of depth - Google Patents
Utensil is examined to belt pulley hole degree of depth Download PDFInfo
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- CN217483426U CN217483426U CN202221232120.0U CN202221232120U CN217483426U CN 217483426 U CN217483426 U CN 217483426U CN 202221232120 U CN202221232120 U CN 202221232120U CN 217483426 U CN217483426 U CN 217483426U
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- dial indicator
- sliding shaft
- rack
- measuring head
- fixing plate
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Abstract
The utility model relates to a belt pulley inner hole depth gauge, which comprises a frame, wherein the frame is arranged in a U shape; the workpiece fixing mechanism comprises a sliding shaft which is movably arranged on the front side of the rack, the front end of the sliding shaft extends to the outside of the front side of the rack and is detachably provided with a measuring head for workpiece fixing, the middle part of the rear end of the sliding shaft is provided with a corresponding guide hole, a return spring is arranged in the guide hole, and the rear end part of the return spring extends to the outside of the rear side of the sliding shaft and is abutted against the rear side of the rack; and the measuring mechanism comprises a dial indicator arranged on the rear side of the rack, and a measuring head of the dial indicator and the rear end part of the sliding shaft are arranged at intervals. The utility model discloses can be effectively under the simple and easy and low cost's of structure condition, realize the on-line measuring to the central bearing hole degree of depth of belt pulley to effectively improve detection efficiency and reduce the detection cost.
Description
Technical Field
The utility model relates to a belt pulley detects technical field, specifically indicates a utensil is examined to belt pulley hole degree of depth.
Background
After key procedures such as stamping, spinning, machining and the like of the conventional belt pulley are carried out, the requirement on the depth of a central bearing hole is high due to the assembly and positioning requirements of a pulley assembly of the belt pulley, and the depth tolerance is generally plus or minus 0.05 mm.
In the conventional measurement process, a height gauge or a depth vernier caliper is usually used for the depth dimension, although the detection operation is relatively simple, the detection action needs to be carried out while a dial indicator measuring pin needs to be lifted and the detection position needs to be aligned, so that the detection action is time-consuming and low in efficiency, the production beat is often influenced by the detection duration, and online efficient detection production cannot be formed. And when the process characteristics and the drawing have clear requirements on the measurement area, the height gauge and the depth vernier caliper cannot be accurately positioned and detected, so that the detection result has large error and poor repeatability. When the depth tolerance of the inner hole of the belt pulley is small, a high-precision digital display depth vernier caliper is required to be used, so that the measurement accuracy can be ensured, and the detection time caused by reading is shortened. Aiming at the technical problems, the digital display depth vernier caliper can be used for solving the problems, but the high-precision digital display depth vernier caliper is higher in price than a dial indicator, so that the problems of overhigh cost, high management expense and high detection cost of the checking tool exist.
Consequently, design a section can be effectively under the simple and easy and low cost's of structure condition, realize the on-line measuring to the central bearing hole degree of depth of belt pulley to effectively improve detection efficiency and reduce the belt pulley hole degree of depth that detects the cost and examine the utensil be the utility model discloses a research purpose.
Disclosure of Invention
To the technical problem that above-mentioned prior art exists, the utility model provides an utensil is examined to belt pulley hole degree of depth, this utensil is examined to belt pulley hole degree of depth can effectively solve the technical problem that above-mentioned prior art exists.
The technical scheme of the utility model is that:
a belt pulley inner hole depth gauge comprises
The rack is arranged in a U shape;
the workpiece fixing mechanism comprises a sliding shaft which is movably arranged on the front side of the rack, the front end of the sliding shaft extends to the outside of the front side of the rack and is detachably provided with a measuring head for workpiece fixing, the middle part of the rear end of the sliding shaft is provided with a corresponding guide hole, a return spring is arranged in the guide hole, and the rear end part of the return spring extends to the outside of the rear side of the sliding shaft and is abutted to the rear side of the rack;
and the measuring mechanism comprises a dial indicator arranged on the rear side of the rack, and a measuring head of the dial indicator and the rear end part of the sliding shaft are arranged at intervals.
The measuring mechanism further comprises a dial indicator protection piece, the dial indicator protection piece is fixedly arranged on the rear side of the rack in a threaded connection mode, the front end portion of the dial indicator protection piece and the rear end portion of the sliding shaft are arranged at intervals, and when the rear end portion of the sliding shaft abuts against the front end portion of the dial indicator protection piece, the moving amount of a measuring head of the dial indicator does not exceed the maximum measuring stroke of the measuring head.
The rack comprises a base plate, the front side and the rear side of the base plate are fixedly connected with a corresponding measuring head fixing plate and a dial indicator fixing plate upwards respectively, the sliding shaft is movably arranged on the measuring head fixing plate, and the dial indicator protection piece are fixedly arranged on the dial indicator fixing plate respectively.
The dial indicator fixing plate is provided with a corresponding spring limiting bolt at a position corresponding to the reset spring, the rear side of the reset spring is sleeved on the spring limiting bolt, and the rear end of the reset spring abuts against the dial indicator fixing plate.
The upper fixing device of the measuring head fixing plate is provided with a corresponding guide copper sleeve, and the sliding shaft is movably arranged in the guide copper sleeve.
The measuring head is detachably mounted at the front end of the sliding shaft through a measuring head fastening bolt, the rear end of the sliding shaft is integrally formed in a step shape, a corresponding fixed convex edge is outwards arranged at the rear end of the sliding shaft, and a switching limiting bolt for preventing deflection is arranged on the fixed convex edge through a threaded connection mode fixing device.
The measuring head fixing plate and the dial indicator fixing plate are respectively installed on the base plate through corresponding fixing plate fastening bolts in a locking mode.
The end part of the dial indicator fixing plate is provided with a fixing threaded hole communicated to the dial indicator, and a dial indicator fixing bolt capable of abutting and fixing the dial indicator is connected in the fixing threaded hole in a threaded connection mode.
The utility model has the advantages that:
1) the utility model discloses a work piece fixed establishment contains the movable mounting in the sliding shaft of the front side of frame, and the front end of sliding shaft extends to the front side outside of frame and demountable installation has the work piece to fix and uses the gauge head. And adjusting the mounting position of the dial indicator before measurement according to the basic depth dimension of the central bearing hole of the workpiece to be measured and the depth vernier caliper, and setting a qualified indicating area of the dial indicator according to the tolerance.
Before measurement, the sliding shaft drives the measuring head to reset towards the outer side under the action of the compression spring; then, sleeving the inner hole of the workpiece to be measured into the outer diameter of the measuring head, and pushing the measuring head to move backwards to enable the plane of the amplitude plate of the workpiece to be measured to be tightly attached to the front side face of the rack; and finally, reading out a depth value from the dial indicator or visually judging whether the pointer of the dial indicator falls into a qualified indication area of the dial indicator, thereby completing the rapid detection. The whole measurement operation is very convenient, and the requirement on detection personnel is low; the most important is that the on-line detection of the depth of the central bearing hole of the belt pulley can be realized effectively under the conditions of simple structure and low cost, so that the detection efficiency is effectively improved, and the detection cost is reduced.
2) The utility model discloses a measuring mechanism still includes percentage table protection piece, the rear end butt of sliding shaft arrives during the front end of percentage table protection piece, the amount of movement of the measuring head of percentage table is no longer than its maximum measurement stroke. The backward movement distance of the sliding shaft is limited in the maximum measuring stroke of the measuring head of the dial indicator, so that the damage of the over travel to the dial indicator is effectively avoided.
3) The utility model discloses a gauge head passes through gauge head fastening bolt demountable installation to the front end of sliding shaft, and the back tip of sliding shaft then is step form integration shaping and outwards is equipped with corresponding fixed protruding edge to in this fixed protruding edge last device be provided with prevent the deflection with switching spacing bolt. In the process is changed to the gauge head, fix protruding edge to fixed protruding through switching spacing bolt promptly to prevent that gauge head fastening bolt from leading to the sliding shaft to produce when the rotating and deflect, thereby ensure the convenient degree of change of gauge head, make the utility model discloses can effectively adapt to the detection demand of different products.
4) The utility model discloses a setting of the spacing bolt of spring effectively ensures compression, the assembly stability of reset spring in the stroke that resets to ensure the repeatability that detects, with the promotion the utility model discloses a practical effect.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a cross-sectional view of the present invention.
Detailed Description
To facilitate understanding of those skilled in the art, the structure of the present invention will now be described in further detail with reference to the following examples:
referring to FIGS. 1-2, a belt pulley inner hole depth gauge comprises
The device comprises a rack 1, wherein the rack 1 is arranged in a U shape;
the workpiece fixing mechanism 2 comprises a sliding shaft 201 which is movably mounted on the front side of the rack 1, the front end of the sliding shaft 201 extends to the outside of the front side of the rack 1 and is detachably provided with a workpiece fixing measuring head 202, the middle part of the rear end of the sliding shaft 201 is provided with a corresponding guide hole 2011, a return spring 203 is arranged in the guide hole 2011, and the rear end part of the return spring 203 extends to the outside of the rear side of the sliding shaft and is abutted to the rear side of the rack 1;
the measuring mechanism 3 comprises a dial indicator 301 arranged at the rear side of the frame 1, and a measuring head of the dial indicator 301 and the rear end part of the sliding shaft 201 are arranged at intervals.
According to the basic depth size of the central bearing hole of the workpiece 11 to be measured, the mounting position of the dial indicator 301 is adjusted before measurement in combination with a depth vernier caliper, and a qualified indication area of the dial indicator 301 is set according to the tolerance.
Before measurement, the sliding shaft 201 drives the measuring head 202 to reset outwards under the action of the compression spring 203; then, sleeving the inner hole of the workpiece 11 to be measured into the outer diameter of the measuring head 202, and then pushing the measuring head 202 to move backwards, so that the web plane of the workpiece 11 to be measured is tightly attached to the front side surface of the rack 1; and finally, reading a depth value in the dial indicator 301 or visually judging whether a pointer of the dial indicator falls into a qualified indication area of the dial indicator 301, thereby completing the rapid detection. The whole measurement operation is very convenient, and the requirement on detection personnel is low; the most important is that the on-line detection of the depth of the central bearing hole of the belt pulley can be realized effectively under the conditions of simple structure and low cost, so that the detection efficiency is effectively improved, and the detection cost is reduced.
The measuring mechanism 3 further comprises a dial indicator protection piece 302, the dial indicator protection piece 302 is fixedly arranged on the rear side of the frame 1 in a threaded connection mode, the front end portion of the dial indicator protection piece 302 and the rear end portion of the sliding shaft 201 are arranged at intervals, and when the rear end portion of the sliding shaft abuts against the front end portion of the dial indicator protection piece, the moving amount of a measuring head of the dial indicator does not exceed the maximum measuring stroke of the measuring head.
So as to limit the backward movement distance of the sliding shaft 201 within the maximum measuring stroke of the measuring head of the dial indicator, thereby effectively avoiding the damage of the over travel to the dial indicator 301.
The rack 1 comprises a base plate 101, the front side and the rear side of the base plate 101 are respectively and fixedly connected with a corresponding measuring head fixing plate 102 and a dial indicator fixing plate 103 upwards, the sliding shaft 201 is movably installed on the measuring head fixing plate 102, and the dial indicator 301 and the dial indicator protection piece 302 are respectively and fixedly installed on the dial indicator fixing plate 103.
The dial indicator fixing plate 103 is provided with a corresponding spring limiting bolt 4 at a position corresponding to the return spring 203, the rear side of the return spring 203 is sleeved on the spring limiting bolt 4, and the rear end of the return spring 203 abuts against the dial indicator fixing plate 103.
Through the setting of the spacing bolt 4 of spring, effectively ensure the assembly stability of reset spring 203 in compression, the stroke that resets to ensure the repeatability that detects, with the promotion the utility model discloses a practical effect.
The fixing device on the measuring head fixing plate 102 is provided with a corresponding guiding copper sleeve 5, and the sliding shaft 201 is movably arranged in the guiding copper sleeve 5.
Through the intervention of direction copper sheathing to keep the smooth degree of sliding shaft 201 in the removal in-process, thereby effectively further promote the utility model discloses a practical function.
The measuring head 202 is detachably mounted at the front end of the sliding shaft 201 through a measuring head fastening bolt 6, the rear end of the sliding shaft 201 is integrally formed in a step shape, a corresponding fixed convex edge 7 is outwards arranged at the rear end of the sliding shaft 201, and a switching limiting bolt 8 for preventing deflection is arranged on the fixed convex edge 7 through a threaded connection mode fixing device.
In the change process of gauge head 202, fix protruding edge 7 through switching spacing bolt 6, fix sliding shaft 201 promptly to prevent that gauge head fastening bolt 6 from leading to sliding shaft 201 to produce when the rotating and deflect, thereby ensure the convenient degree of change of gauge head 202, make the utility model discloses can effectively adapt to the detection demand of different products.
The gauge head fixing plate 102 and the dial indicator fixing plate 103 are respectively locked and installed on the base plate 101 through corresponding fixing plate fastening bolts 9.
The end part of the dial indicator fixing plate 103 is provided with a fixing threaded hole communicated to the dial indicator 301, and a dial indicator fixing bolt 10 capable of abutting and fixing the dial indicator 301 is connected in the fixing threaded hole in a threaded connection mode.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a utensil is examined to belt pulley hole degree of depth which characterized in that: comprises that
The rack (1), the rack (1) is arranged in a U shape;
the workpiece fixing mechanism (2) comprises a sliding shaft (201) which is movably mounted on the front side of the rack (1), the front end of the sliding shaft (201) extends to the outside of the front side of the rack (1) and is detachably provided with a workpiece fixing measuring head (202), a corresponding guide hole (2011) is formed in the middle of the rear end of the sliding shaft (201), a return spring (203) is arranged in the guide hole (2011), and the rear end part of the return spring (203) extends to the outside of the rear side of the sliding shaft and abuts against the rear side of the rack (1);
the measuring mechanism (3) comprises a dial indicator (301) arranged on the rear side of the rack (1), and a measuring head of the dial indicator (301) and the rear end part of the sliding shaft (201) are arranged at intervals.
2. The pulley inner hole depth gauge according to claim 1, wherein: the measuring mechanism (3) further comprises a dial indicator protection piece (302), the dial indicator protection piece (302) is fixedly arranged on the rear side of the rack (1) in a threaded connection mode, the front end portion of the dial indicator protection piece (302) and the rear end portion of the sliding shaft (201) are arranged at intervals, and when the rear end portion of the sliding shaft (201) abuts against the front end portion of the dial indicator protection piece (302), the moving amount of a measuring head of the dial indicator (301) does not exceed the maximum measuring stroke.
3. The pulley inner hole depth gauge according to claim 2, wherein: the frame (1) comprises a base plate (101), the front side and the rear side of the base plate (101) are fixedly connected with a corresponding measuring head fixing plate (102) and a dial indicator fixing plate (103) upwards respectively, the sliding shaft (201) is movably installed on the measuring head fixing plate (102), and the dial indicator (301) and the dial indicator protecting piece (302) are fixedly installed on the dial indicator fixing plate (103) respectively.
4. The pulley inner hole depth gauge according to claim 3, wherein: the dial indicator fixing plate (103) is provided with a corresponding spring limiting bolt (4) at a position corresponding to the return spring (203), the rear side of the return spring (203) is sleeved on the spring limiting bolt (4), and the rear end part of the return spring (203) abuts against the dial indicator fixing plate (103).
5. The pulley inner hole depth gauge according to claim 3, wherein: the upper fixing device of the measuring head fixing plate (102) is provided with a corresponding guide copper sleeve (5), and the sliding shaft (201) is movably arranged in the guide copper sleeve (5).
6. The inspection device for the inner hole depth of the belt pulley according to claim 1, wherein: the measuring head (202) is detachably mounted at the front end of the sliding shaft (201) through a measuring head fastening bolt (6), the rear end part of the sliding shaft (201) is integrally formed in a step shape and is outwards provided with a corresponding fixed convex edge (7), and the fixed convex edge (7) is provided with a switching limiting bolt (8) for preventing deflection through a threaded connection mode fixing device.
7. The pulley inner hole depth gauge according to claim 3, wherein: the measuring head fixing plate (102) and the dial indicator fixing plate (103) are respectively locked and installed on the base plate (101) through corresponding fixing plate fastening bolts (9).
8. The pulley inner hole depth gauge according to claim 1, wherein: the end part of the dial indicator fixing plate (103) is provided with a fixing threaded hole communicated to the dial indicator (301), and a dial indicator fixing bolt (10) capable of forming abutting fixation on the dial indicator (301) is connected in the fixing threaded hole in a threaded connection mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221232120.0U CN217483426U (en) | 2022-05-20 | 2022-05-20 | Utensil is examined to belt pulley hole degree of depth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221232120.0U CN217483426U (en) | 2022-05-20 | 2022-05-20 | Utensil is examined to belt pulley hole degree of depth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217483426U true CN217483426U (en) | 2022-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221232120.0U Active CN217483426U (en) | 2022-05-20 | 2022-05-20 | Utensil is examined to belt pulley hole degree of depth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217483426U (en) |
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2022
- 2022-05-20 CN CN202221232120.0U patent/CN217483426U/en active Active
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