CN219141694U - A device for measuring the length tolerance of shaft workpieces - Google Patents

Abstract

The utility model relates to the technical field of length measurement devices and discloses a length tolerance measurement device for shaft workpieces, which comprises a workbench, wherein side plates are fixedly connected to the front and rear parts of one side of the top end of the workbench, sliding grooves are formed in the middle parts of one side, which are close to each other, of the side plates, sliding rods are connected in the sliding grooves in a sliding manner, one ends, which are close to each other, of the sliding rods are fixedly connected with a supporting plate, the middle parts of the top ends of the supporting plates are fixedly connected with a dial indicator, and the middle parts of the bottom ends of the supporting plates are fixedly connected with guide rods. According to the utility model, the double-headed motor is controlled to drive the threaded rod to rotate, and the threaded rods on two sides of the double-headed motor are different in thread rotation direction, so that the sliding blocks can be driven to mutually approach along the axial direction of the threaded rods when the threaded rods rotate, further the sliding blocks drive the clamping plates to mutually approach, the standard part can be clamped under the assistance of the clamping grooves, and the deviation of the workpiece in the measuring process can be avoided, and the detection precision is influenced.

Description

A shaft workpiece length tolerance measuring device

technical field

The utility model relates to the technical field of length measuring devices, in particular to a length tolerance measuring device for shaft workpieces.

Background technique

Shaft workpieces are one of the typical parts often encountered in hardware accessories. They are mainly used to support transmission parts, transmit torque and bear loads. Due to the wide and universal use of shaft workpieces, the accuracy of their dimensions will directly affect In terms of the safety factor and service life of the product, when the shaft parts are produced and processed, the staff often measure their tolerances to judge whether the produced and processed shaft parts meet the standards.

However, in the actual detection process, there is a lack of a fixed structure, which may cause the position of the workpiece to be measured to shift due to the staff's accidental touch during the detection, which affects the detection accuracy. At the same time, the staff through the measurement Measure the length with a ruler or a scale. This measurement method cannot obtain the specific length tolerance value of the shaft workpiece, and the process is cumbersome, resulting in low detection efficiency.

Utility model content

The purpose of the utility model is to solve the shortcomings in the prior art, and propose a shaft workpiece length tolerance measuring device.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a shaft workpiece length tolerance measuring device, including a workbench, the front and rear parts of the top side of the workbench are fixedly connected with side plates, and the side plates are close to each other The middle part of one side is provided with a chute, and a slide bar is slidably connected in the chute, and a support plate is fixedly connected to one end of the slide bar close to each other, and a dial indicator is fixedly connected to the middle part of the top of the support plate. The middle part of the bottom end of the board is fixedly connected with a guide rod, the middle part of the workbench and the middle part of the other side are fixedly connected with a base, the inner middle part of the base is provided with a cavity, and the middle part of the bottom end of the cavity is fixedly connected with a double head motor, the driving end of the double-head motor is fixedly connected with a threaded rod, the middle part of the outer periphery of the threaded rod is threaded with a slider, the top of the slider is fixedly connected with a slide plate, and the top of the slide plate is close to the middle of the base. The splints are fixedly connected, and the middle parts of the splints on one side close to each other are provided with card slots.

As a further description of the above technical solution:

A guide groove is opened in the middle of one side of the top of the workbench, and a guide rod is slidably connected to the guide groove.

As a further description of the above technical solution:

The bottom end of the guide rod is fixedly connected with a second baffle.

As a further description of the above technical solution:

The ends of the slide bars away from each other are fixedly connected with first baffles.

As a further description of the above technical solution:

A positioning plate is fixedly connected to the middle part on the other side of the top of the workbench.

As a further description of the above technical solution:

The side of the threaded rod close to the driving end of the double-head motor is fixedly connected with the limiting plate.

As a further description of the above technical solution:

Sliding plates are slidably connected to the front and rear of the top of the base, and the slots are V-shaped.

As a further description of the above technical solution:

The sliders are respectively slidably connected to the front and rear sides of the cavity.

The utility model has the following beneficial effects:

1. In this utility model, by controlling the double-headed motor, the double-headed motor can drive the threaded rod to rotate. Since the threaded rods on both sides of the double-headed motor have different screw threads, the threaded rod can drive the slider along the The axial directions of the threaded rods are close to each other, so that the slider drives the splints close to each other. With the assistance of the clamping groove, the standard part can be clamped, which can avoid the deviation of the workpiece during the measurement process and affect the detection accuracy.

2. In the utility model, the sliding support plate makes the detection end of the dial indicator contact the end surface of the shaft workpiece, detects the shaft surface, and obtains the length tolerance of the shaft workpiece, which can simplify the process of detecting the length tolerance of the shaft workpiece , to improve the efficiency of the length tolerance detection of shaft workpieces.

Description of drawings

Fig. 1 is a front perspective view of a shaft workpiece length tolerance measuring device proposed by the utility model;

Fig. 2 is a front view of a shaft workpiece length tolerance measuring device proposed by the utility model;

Fig. 3 is a schematic diagram of the internal structure of the base of a shaft workpiece length tolerance measuring device proposed by the utility model.

illustration:

1. Workbench; 2. Base; 3. Plywood; 4. Positioning plate; 5. Card slot; 6. Chute; 7. Slide bar; 8. Support plate; 9. Dial indicator; 10. Guide groove; 11 , the first baffle; 12, the side plate; 13, the guide rod; 14, the second baffle; 15, the slider; 16, the cavity; 17, the slide; 18, the double-head motor; 19, the limit plate; 20 , Threaded rod.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Referring to Fig. 1-3, an embodiment provided by the utility model: a shaft workpiece length tolerance measuring device, including a workbench 1, side plates 12 are fixedly connected to the front and rear of the top side of the workbench 1, by setting the side The plate 12 can increase the stability of the slide bar 7 during the sliding process, which is beneficial to ensure the stable use of the device. The side plates 12 are provided with chute 6 in the middle of one side close to each other, and the slide bar 7 is slidably connected in the chute 6. One end of the slide bars 7 close to each other is fixedly connected with a support plate 8, and the middle part of the top end of the support plate 8 is fixedly connected with a dial indicator 9. By sliding the support plate 8, the detection end of the dial indicator 9 is brought into contact with the end surface of the shaft workpiece. Shaft surface detection, to obtain the length tolerance of the shaft workpiece, can simplify the process of detecting the length tolerance of the shaft workpiece and improve the efficiency of the detection of the length tolerance of the shaft workpiece. Both the middle part of 1 and the middle part of the other side are fixedly connected with a base 2, and the inner middle part of the base 2 is provided with a cavity 16, and the middle part of the bottom end of the cavity 16 is fixedly connected with a double-head motor 18, and the driving ends of the double-head motor 18 are fixedly connected with a The threaded rod 20, by controlling the double-head motor 18, the double-head motor 18 can drive the threaded rod 20 to rotate, the middle part of the outer circumference of the threaded rod 20 is threadedly connected with a slider 15, and the top of the slider 15 is fixedly connected with a slide plate 17, and the top of the slide plate 17 One side near the middle part of the base 2 is fixedly connected with a clamping plate 3, and the middle part of the clamping plate 3 close to one side is provided with a draw-in slot 5. Since the threaded rods 20 on both sides of the double-headed motor 18 have different screw directions, the threaded rods 20 can rotate when they are rotating. , can drive the slider 15 to approach each other along the axial direction of the threaded rod 20, and then make the slider 15 drive the splint 3 to approach each other. With the assistance of the clamping groove 5, the standard part can be clamped, and the workpiece can be avoided during the measurement process. Offset affects detection accuracy.

There is a guide groove 10 in the middle of the top side of the workbench 1, and a guide rod 13 is slidably connected to the guide groove 10. By setting the guide groove 10 and the guide rod 13, the smoothness of the support plate 8 when moving can be increased, which is beneficial to the support plate 8. stable movement, the bottom end of the guide rod 13 is fixedly connected with the second baffle 14, and the ends of the slide bars 7 away from each other are fixedly connected with the first baffle 11, by setting the first baffle 11 and the second baffle 14, it is possible to avoid Slide bar 7 and guide bar 13 break away from chute 6 and guide groove 10 respectively, influence its stable use, workbench 1 top other side middle part is fixedly connected with locating plate 4, by arranging locating plate 4, can assist staff to wait for One end of the workpiece to be measured is fixed to reduce the influence of other factors on the workpiece to be measured, which can increase the accuracy of detection. The side of the threaded rod 20 close to the driving end of the double-head motor 18 is fixedly connected to the limit plate 19. By setting the limit plate 19, it can avoid The slider 15 and the motor drive end contact each other and interfere with each other, causing the movement of the slider 15 to be affected, which in turn causes the splint 3 to fail to fix the workpiece to be tested, which affects the detection. V-shaped, because the card slot 5 is V-shaped, it can fit the appearance shape of the shaft parts, and it is convenient for the staff to fix it. The sliders 15 are respectively slidably connected to the front and rear sides of the cavity 16. Sliding allows the cavity 16 to limit the slider 15, preventing the slider 15 from rotating following the threaded rod 20 and affecting the use.

Working principle: In the actual use process, the staff places the standard part in the middle of the card slot 5, and closes one end of the standard part to the positioning plate 4, and controls the double-head motor 18 so that the double-head motor 18 can drive the threaded rod 20 to rotate Since the threaded rods 20 on both sides of the double-headed motor 18 have different screw threads, when the threaded rod 20 rotates, it can drive the slider 15 to approach each other along the axial direction of the threaded rod 20, so that the slider 15 can drive the splint 3 to each other. Approaching, with the assistance of the clamping groove 5, the standard part can be clamped, which can avoid the deviation of the workpiece during the measurement process and affect the detection accuracy. With the assistance of the support plate 8, it is possible to increase the smooth movement of the support plate 8, which is convenient to use, so that the detection end of the dial indicator 9 on the support plate 8 is in contact with the outer wall of the standard part, and then the dial indicator 9 is calibrated. After calibration, through the control The double-head motor 18 can take out the shaft body standard part from the slot 5, replace the workpiece to be measured, place the workpiece in the slot 5, make one end of the workpiece close to the outer wall of the positioning plate 4, and then repeat the operation , it can realize that the workpiece to be measured is fixed, and then slide the support plate 8, so that the detection end of the dial gauge 9 contacts the end surface of the shaft workpiece, and the shaft surface is detected to obtain the length tolerance of the shaft workpiece, which can simplify the shaft inspection. The process of workpiece length tolerance detection improves the efficiency of shaft workpiece length tolerance detection.

Finally, it should be noted that: the above is only a preferred embodiment of the utility model, and is not intended to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art , it can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model, All should be included within the protection scope of the present utility model.

Claims (8)

1. The utility model provides a shaft class work piece length tolerance measuring device, includes workstation (1), its characterized in that: the utility model provides a workstation (1) top one side front and back portion equal fixedly connected with curb plate (12), curb plate (12) all offer spout (6) in the middle part of being close to one side each other, equal sliding connection has slide bar (7) in spout (6), slide bar (7) are close to one end fixedly connected with backup pad (8) each other, backup pad (8) top middle part fixedly connected with percentage table (9), backup pad (8) bottom middle part fixedly connected with guide bar (13), equal fixedly connected with base (2) in workstation (1) middle part and opposite side middle part, middle part all is provided with cavity (16) in base (2), equal fixedly connected with stud (18) in cavity (16) bottom middle part, equal fixedly connected with threaded rod (20) of stud (18) drive end, equal threaded connection has slider (15) in threaded rod (20) in periphery middle part each other, slider (15) top equal fixedly connected with slide plate (17), slide plate (17) top are close to base (2) middle part one side equal fixedly connected with splint (3), splint (3) are equipped with draw-in groove (5) each other in one side of being close to each other.

2. The shaft workpiece length tolerance measurement device according to claim 1, wherein: the middle part of one side of the top end of the workbench (1) is provided with a guide groove (10), and a guide rod (13) is connected in a sliding manner in the guide groove (10).

3. The shaft workpiece length tolerance measurement device according to claim 1, wherein: the bottom end of the guide rod (13) is fixedly connected with a second baffle (14).

4. The shaft workpiece length tolerance measurement device according to claim 1, wherein: the sliding rods (7) are fixedly connected with first baffle plates (11) at the ends far away from each other.

5. The shaft workpiece length tolerance measurement device according to claim 1, wherein: the middle part of the other side of the top end of the workbench (1) is fixedly connected with a positioning plate (4).

6. The shaft workpiece length tolerance measurement device according to claim 1, wherein: and one side of the threaded rod (20) close to the driving end of the double-headed motor (18) is fixedly connected with a limiting plate (19).

7. The shaft workpiece length tolerance measurement device according to claim 1, wherein: the front and rear parts of the top end of the base (2) are both connected with sliding plates (17) in a sliding mode, and the clamping grooves (5) are all V-shaped.

8. The shaft workpiece length tolerance measurement device according to claim 1, wherein: the sliding blocks (15) are respectively connected with the front side and the rear side of the cavity (16) in a sliding way.

Images