Turnover positioning mechanism for automobile testing fixture

Abstract

The utility model discloses a turnover positioning mechanism for an automobile testing fixture. The turnover positioning mechanism comprises a mounting seat, a swing arm and a detection plate, a positioning plate is arranged on one side of the mounting seat, and a spring plunger is arranged on the positioning plate; the spring plunger comprises a positioning pin and a plunger body arranged outside the positioning pin in a sleeving mode. One end of the plunger body is provided with a knob, and the other end of the plunger body is connected with a positioning plate; the tail part of the positioning pin is fixed on the knob, and the head part of the positioning pin penetrates out of the plunger body and is positioned above the swing arm; a spring is arranged in the plunger body and arranged outside the positioning pin in a sleeving mode, and the two ends of the spring are connected with the positioning pin and the plunger body respectively. According to the overturning positioning mechanism for the automobile testing fixture, the spring plunger with a specific structure is arranged on the mounting seat, so that the overturning action of the swing arm can be limited, the swing arm can be stopped at a proper position, the positioning function is realized, the spring plunger does not need to be repeatedly inserted and pulled, and the spring plunger is prevented from being lost, damaged or confused.

Description

TECHNICAL FIELD

[0001] The utility model relates to automobile gauge technical field, concretely relates to a kind of turnover positioning mechanism for automobile gauge. BACKGROUND

[0002] Automobile gauge is special testing equipment used to measure and evaluate the size and quality of parts in automobile production;During detection, the parts are installed on the automobile gauge, and then the part surface and periphery are checked by visual inspection, measuring table or caliper to realize rapid judgment of part quality status. During the use of automobile gauge, specific parts are often used to realize the movement or turnover of fixed distance. At present, the industry usually uses positioning pins that can be manually inserted and pulled out for limiting, so as to achieve accurate positioning. However, the movement or turnover of fixed distance has high requirements for precision, and the operation is difficult, only experienced operators can manually insert and pull out the positioning pins for limiting, and most operators need to take out the automobile gauge and then put the positioning pins into the hole for limiting, which is slow. Moreover, the structure of some automobile gauges is complex, it is difficult to directly observe the hole or the space is small, which makes it inconvenient to take and place the positioning pins, increasing the difficulty of operation. In addition, since the positioning pins can be taken out of the gauge body, they may be damaged or lost due to the negligence of the operator. SUMMARY

[0003] In order to overcome the above problems in the prior art, the present application provides a turnover positioning mechanism for automobile gauge, which is used for positioning the parts during detection. The turnover positioning mechanism for automobile gauge has reasonable design and low manufacturing cost. By providing a spring plunger with a specific structure on the mounting seat, the turning action of the swing arm can be limited to stop at a proper position, thereby realizing the positioning function, which is simple and convenient to operate and suitable for popularization and use. Moreover, the spring plunger is fixed on the mounting seat and does not need to be repeatedly inserted and pulled out, avoiding the loss, damage or confusion of the spring plunger due to random placement.

[0004] The technical scheme of the present application is as follows: a turnover positioning mechanism for automobile gauge, comprising a mounting seat; a swing arm is rotatably connected to the mounting seat; a detection plate is provided at the end of the swing arm; a positioning plate is provided on one side of the mounting seat; a spring plunger is provided on the positioning plate; the spring plunger comprises a positioning pin and a plunger body sleeved outside the positioning pin; the plunger body is hollow with open ends, one end of which is provided with a knob, and the other end is connected to the positioning plate; the tail of the positioning pin is fixed to the knob, and the head is inserted into the plunger body and located above the swing arm; a spring is provided inside the plunger body; the spring is sleeved outside the positioning pin, and the two ends are connected to the positioning pin and the plunger body respectively.

[0005] Compared with the prior art, the turnover positioning mechanism for automobile testing fixtures has reasonable design and low manufacturing cost. The mechanism comprises a mounting seat, a swing arm and a detection plate, and a spring plunger is fixedly connected to the side of the mounting seat through a positioning plate. The spring plunger is internally provided with a spring. The positioning pin can be extended or retracted by pulling or releasing the knob, thereby limiting the turnover action of the swing arm. Specifically, the knob is pulled first to extend the positioning pin, the swing arm is then turned upward to be located above the positioning pin, and the knob is then released to reset the positioning pin. At this time, the swing arm is limited by the positioning pin and cannot be turned downward again, that is, the positioning is completed. The operation is simple and convenient, and the mechanism is suitable for popularization and use. Moreover, the spring plunger is fixed to the mounting seat and does not need to be repeatedly inserted and pulled out, thereby avoiding the loss, damage or confusion of the spring plunger due to random placement.

[0006] When the swing arm is turned over, the knob needs to be pulled all the time. If the staff does not pay attention and does not pull the knob, the knob will retract, which can easily pinch the hand. Therefore, the turnover positioning mechanism is further improved.

[0007] The first improvement is that the head of the positioning pin is in a semispherical shape, and an A guide groove matched with the head of the positioning pin is formed in the top surface of the swing arm. At this time, the swing arm can be directly turned upward. When the A guide groove hits the head of the positioning pin, the positioning pin will be directly pressed to retract, and the knob does not need to be pulled again. Further, an outer thread is arranged on the outer circumferential surface of the plunger body, and an inner thread is arranged in the mounting hole of the positioning plate in correspondence. A B guide groove matched with the head of the positioning pin is formed in the bottom surface of the swing arm. When positioning is needed, the plunger body is rotated to make the head of the positioning pin exceed the position of the B guide groove. The bottom of the swing arm hits the positioning pin and cannot be turned downward any more, thereby achieving the positioning effect. When the swing arm needs to be reset, the plunger body is reversely rotated to make the B guide groove hit the head of the positioning pin, so that the positioning pin is directly pressed to retract when the swing arm is turned over.

[0008] The second improvement is that the knob is provided with a locking block, and the plunger body is provided with a locking groove matched with the locking block in correspondence. The number of the locking blocks is two and they are symmetrically distributed on the two sides of the knob. The number of the locking grooves is also two and they are symmetrically distributed on the two sides of the plunger body. In the initial state, the locking blocks are located in the locking grooves. When in use, the knob is pulled and rotated by 90 degrees to make the end of the locking block abut against the end of the plunger body. The spring plunger is in a locked state, and the positioning pin is retracted. At this time, the swing arm will not be interfered by the positioning pin and can be turned upward and downward. After the swing arm is turned over to a suitable position, the knob is reversely rotated by 90 degrees. The positioning pin is reset under the action of the spring elastic force to limit the position of the swing arm.

[0009] As optimization, the aforementioned automobile gauge turnover positioning mechanism, the outer circumferential surface of one end of the plunger body is provided with an annular boss, and the other end is provided with a nut; the annular boss is in abutment with the outer side surface of the positioning plate, and the nut is in abutment with the inner side surface of the positioning plate, so as to fix the spring plunger on the positioning plate. When the spring plunger is installed, the nut is unscrewed, the plunger body is inserted into the mounting hole on the positioning plate until the annular boss is in abutment with the positioning plate, and then the nut is screwed to fix the spring plunger, so as to ensure the connection firmness between the spring plunger and the positioning plate and the strong working stability. Further, the positioning plate is L-shaped and includes a first mounting part and a second mounting part; the spring plunger is fixed on the first mounting part, and the second mounting part is fixed with the mounting seat through threaded connection. At this time, the connection structure is simple and firm.

[0010] As optimization, the aforementioned automobile gauge turnover positioning mechanism, the outer circumferential surface of one end of the plunger body is provided with an annular boss, and the other end is provided with a nut; the annular boss is in abutment with the outer side surface of the positioning plate, and the nut is in abutment with the inner side surface of the positioning plate, so as to fix the spring plunger on the positioning plate. When the spring plunger is installed, the nut is unscrewed, the plunger body is inserted into the mounting hole on the positioning plate until the annular boss is in abutment with the positioning plate, and then the nut is screwed to fix the spring plunger, so as to ensure the connection firmness between the spring plunger and the positioning plate and the strong working stability. Further, the positioning plate is L-shaped and includes a first mounting part and a second mounting part; the spring plunger is fixed on the first mounting part, and the second mounting part is fixed with the mounting seat through threaded connection. At this time, the connection structure is simple and firm.

[0011] As optimization, the aforementioned automobile gauge turnover positioning mechanism, the knob is T-shaped. Thus, it is convenient for the staff to pinch the knob to pull the knob, and the operation is more labor-saving.

[0012] As optimization, the aforementioned automobile gauge turnover positioning mechanism, the swing arm is fixed on the mounting seat through the adjusting knob. When the turnover positioning mechanism of the present application is not used, the swing arm can be fixed on the mounting seat to avoid damage caused by up-down turnover under external force. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structural schematic view of the automobile gauge turnover positioning mechanism of the present application;

[0014] Figure 2 is an assembly schematic view of the spring plunger and the positioning plate in the present application;

[0015] Figure 3 is a sectional view of the spring plunger in the present application;

[0016] Figure 4 is a structural schematic view of the swing arm in the first embodiment of the present application;

[0017] Figure 5 is an exploded view of the spring plunger in the second embodiment of the present application.

[0018] The marks in the drawings are: 1 - mounting seat; 2 - swing arm, 201 - A guide groove, 202 - B guide groove; 3 - detection plate; 4 - positioning plate, 401 - first mounting part, 402 - second mounting part; 5 - spring plunger; 501 - positioning pin, 5011 - first limiting boss, 502 - plunger body, 5021 - locking groove, 5022 - second limiting boss, 503 - knob, 5031 - locking block, 504 - spring, 505 - annular boss, 506 - nut; 6 - adjusting knob. DETAILED DESCRIPTION

[0019] The application will be further described below in conjunction with the drawings and examples, but not as the basis for limiting the application.

[0020] Reference Figures 1 to 3 , the turnover positioning mechanism for automobile detection tool, including mounting seat 1; The mounting seat 1 is rotatably connected with the swing arm 2; The end of the swing arm 2 is provided with the detection plate 3 (the swing arm 2 is L-shaped, and the detection plate 3 is fixed by bolt connection); One side of the mounting seat 1 is provided with the positioning plate 4; The positioning plate 4 is provided with the spring plunger 5; The spring plunger 5 includes the positioning pin 501 and the plunger body 502 sleeved outside the positioning pin 501; The plunger body 502 is hollow at both ends, one end of which is provided with the knob 503, and the other end is connected with the positioning plate 4; The tail of the positioning pin 501 is fixed on the knob 503, and the head is out of the plunger body 502 and located above the swing arm 2; The inside of the plunger body 502 is provided with the spring 504; The spring 504 is sleeved outside the positioning pin 501, and the two ends are connected with the positioning pin 501 and the plunger body 502 respectively.

[0021] Further, one end of the plunger body 502 is provided with an annular boss 505 on the outer periphery, and the other end is sleeved with a nut 506; The annular boss 505 abuts against the outer side surface of the positioning plate 4, and the nut 506 abuts against the inner side surface of the positioning plate 4, so as to fix the spring plunger 5 on the positioning plate 4. When installing the spring plunger 5, the nut 506 is unscrewed, the plunger body 502 is inserted into the mounting hole on the positioning plate 4 until the annular boss 505 abuts against the positioning plate 4, and then the nut 506 is screwed in to fix the spring plunger 5, so as to ensure the connection firmness between the spring plunger 5 and the positioning plate 4, and the working stability is strong. Further, the positioning plate 4 is L-shaped, including the first mounting part 401 and the second mounting part 402; The spring plunger 5 is fixed on the first mounting part 401, and the second mounting part 402 is fixed with the mounting seat 1 by two bolts. At this time, the connection structure is simple and firm.

[0022] Further, the outer circumferential surface of the positioning pin 501 is provided with a first limiting boss 5011, and the inner circumferential surface of the plunger body 502 is provided with a second limiting boss 5022; the two ends of the spring 504 are fixed on the first limiting boss 5011 and the second limiting boss 5022 respectively. At this time, the structure is simple and the assembly is convenient.

[0023] Further, the knob 503 is T-shaped. In this way, it is convenient for the staff to pinch the knob 503 to pull the knob 503, and the operation is more labor-saving.

[0024] Further, the swing arm 2 is fixed on the mounting seat 1 through the adjusting knob 6. When the flip positioning mechanism of the present application is not used, the swing arm 2 can be fixed on the mounting seat 1 to avoid being damaged by being flipped up and down under the action of external force.

[0025] Further, the head of the positioning pin 501 is hemispherical, and the top surface of the swing arm 2 is provided with an A guide groove 201 matched with the head of the positioning pin 501. At this time, the swing arm 2 can be directly flipped up, and when the A guide groove 201 hits the head of the positioning pin 501, the positioning pin 501 will be directly squeezed to shrink, and there is no need to pull the knob 503 again.

[0026] When the flip positioning mechanism of the present application is used, the mounting seat 1 is assembled on the automobile gauge.

[0027] Working principle:

[0028] When used, first flip the swing arm 2 up, and when the A guide groove 201 hits the head of the positioning pin 501, the positioning pin 501 will be directly squeezed to shrink until the swing arm 2 is flipped to be above the positioning pin 501, and the positioning pin 501 is reset under the elastic force of the spring 504, at this time the swing arm 2 is blocked by the positioning pin 501 and cannot move downward, so as to realize positioning; then the measured part is loaded, at this time the detection plate 3 will be in contact with the surface of the measured part (the end surface of the detection plate 3 is provided with an arc surface matched with the measured part).

[0029] After detection is completed, pull the knob 503 to drive the positioning pin 501 to shrink, and flip the swing arm 2 down to reset it, and then release the knob 503 to reset the positioning pin 501.

[0030] Embodiment 1:

[0031] Reference Figure 4In the embodiment, the outer circumferential surface of the plunger body 502 is provided with external threads, and the mounting hole of the positioning plate 4 is provided with internal threads in correspondence; the bottom surface of the swing arm 2 is provided with a B guide groove 202 matched with the head of the positioning pin 501. When positioning is needed, the plunger body 502 is rotated so that the head of the positioning pin 501 is beyond the position of the B guide groove 202, the bottom of the swing arm 2 hits the positioning pin 501, and the swing arm 2 cannot be flipped down any more, thereby achieving the positioning effect; when the swing arm 2 needs to be reset, the plunger body 502 is reversely rotated so that the B guide groove 202 can hit the head of the positioning pin 501, so that the positioning pin 501 is directly pressed to be retracted when the swing arm 2 is flipped.

[0032] Embodiment 2

[0033] Referring to Figure 5 In the embodiment, the knob 503 is provided with locking blocks 5031, and the plunger body 502 is provided with locking grooves 5021 matched with the locking blocks 5031 in correspondence; the number of the locking blocks 5031 is two and they are symmetrically distributed on the two sides of the knob 503, and the number of the locking grooves 5021 is also two and they are symmetrically distributed on the two sides of the plunger body 502. In the initial state, the locking blocks 5031 are located in the locking grooves 5022; when in use, the knob 503 is pulled and rotated by 90 degrees, so that the end of the locking block 5031 abuts against the end of the plunger body 502, the spring plunger 5 is in the locked state, and the positioning pin 501 is retracted, at this time, the swing arm 2 is not interfered by the positioning pin 501 and can be flipped up and down; after the swing arm 2 is flipped to the appropriate position, the knob 503 is reversely rotated by 90 degrees, and the positioning pin 501 is reset under the elastic force of the spring 504 to limit the position of the swing arm 2.

[0034] The general description of the utility model involved in the present application and the description of the specific embodiments should not be understood as a limitation of the technical solutions of the utility model. Based on the disclosure of the present application, the skilled in the art can add, reduce or combine the disclosed technical features in the general description or / and the specific embodiments (including the embodiments) without violating the elements of the utility model involved, to form other technical solutions within the protection scope of the present application.

Claims

1. A turnover positioning mechanism for an automotive testing fixture, characterized by: The utility model provides a kind of detection device for the swing arm of the swing arm type machine tool, including mounting seat (1);The swing arm (2) is rotatably connected on the mounting seat (1);End of the swing arm (2) is equipped with detection plate (3);One side of the mounting seat (1) is equipped with locating plate (4);Spring plunger (5) is equipped on the locating plate (4);The spring plunger (5) includes locating pin (501) and plunger body (502) being sleeved on the outside of locating pin (501);The plunger body (502) is hollow with both ends open, and one end is equipped with knob (503), and the other end is connected with locating plate (4);The tail of the locating pin (501) is fixed on the knob (503), and the head is from the plunger body (502) and is located above the swing arm (2);The inside of the plunger body (502) is equipped with spring (504);The spring (504) is sleeved on the outside of locating pin (501), and both ends are connected with locating pin (501) and plunger body (502) respectively.

2. The turnover positioning mechanism for an automobile testing fixture according to claim 1, characterized in that: The head of the locating pin (501) is hemispherical, and the top surface of the swing arm (2) is provided with an A guide groove (201) matched with the head of the locating pin (501).

3. The turnover positioning mechanism for an automobile testing fixture according to claim 2, characterized in that: The outer periphery of the plunger body (502) is provided with external threads, and the mounting hole of the locating plate (4) is provided with internal threads correspondingly.

4. The turnover positioning mechanism for an automotive testing fixture according to claim 1, characterized in that: The knob (503) is provided with a locking block (5031), and the plunger body (502) is provided with a locking groove (5021) matched with the locking block (5031) correspondingly.

5. The turnover positioning mechanism for an automotive testing fixture according to claim 4, characterized in that: The number of the locking block (5031) is two, and they are symmetrically distributed on both sides of the knob (503), and the number of the locking groove (5021) is two, and they are symmetrically distributed on both sides of the plunger body (502).

6. The turnover positioning mechanism for an automotive testing fixture according to claim 1, wherein: The outer periphery of one end of the plunger body (502) is provided with an annular boss (505), and the other end is sleeved with a nut (506);The annular boss (505) abuts against the outer side of the locating plate (4), and the nut (506) abuts against the inner side of the locating plate (4), so as to fix the spring plunger (5) on the locating plate (4).

7. The turnover positioning mechanism for an automotive testing fixture according to claim 6, characterized in that: The outer periphery of the locating pin (501) is provided with a first limiting boss (5011), and the inner periphery of the plunger body (502) is provided with a second limiting boss (5022);Both ends of the spring (504) are fixed on the first limiting boss (5011) and the second limiting boss (5022) respectively.

8. The turnover positioning mechanism for an automotive testing fixture according to claim 4, wherein: The knob (503) is T-shaped.

9. The turnover positioning mechanism for an automotive testing fixture according to claim 8, wherein: The swing arm (2) is fixed on the mounting seat (1) through the adjusting knob (6).

10. The turnover positioning mechanism for an automotive testing fixture according to claim 9, wherein: The locating plate (4) is L-shaped, including a first mounting part (401) and a second mounting part (402);The spring plunger (5) is fixed on the first mounting part (401), and the second mounting part (402) is fixed by thread connection with the mounting seat (1).

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