CN108680082A - A kind of forging measuring device - Google Patents

Abstract

The invention relates to the technical field of forging equipment, and specifically discloses a forging measuring device, which includes a sleeve, and further includes: a lower detection head, the lower end surface of which is used to abut against the first plane of the forging to be detected; an upper detection assembly, including an upper Detection head, the lower end surface of the upper detection head is used to abut against the second plane of the forging; the upper detection head can move along the axial direction of the sleeve to approach or move away from the lower detection head; length measuring instrument, the lower end surface of the lower detection head and the upper When the distance of the lower end surface of the detection head along the axial direction of the sleeve is the first preset value, the upper detection component can trigger the length measuring instrument, and the length measuring instrument is used to measure the displacement that occurs after the upper detection head triggers the length measuring instrument; the lower detection The head, the upper detection component and the length measuring instrument are all arranged on the sleeve. The forging measuring device provided by the invention can determine the distance between two planes of the forging after only one measurement, the measuring method is simple, and the measuring efficiency is high.

Description

A measuring device for forgings

technical field

The invention relates to the technical field of forging equipment, in particular to a forging measuring device.

Background technique

In order to timely take out the forgings produced by the warm forging die and measure their dimensions, special clamping and measuring devices are required.

As shown in Figure 1, the end face of the flange of the forging 1' is the first plane 21', and the bottom wall of the blind hole is the second plane 22'. The bottom wall of the blind hole and the end face of the flange of the forging 1' before forging The distance is L, that is, the distance between the first plane 21' and the second plane 22' is L. After the forging is completed, it is necessary to ensure that the distance L is still within the allowable error range. In the prior art, in order to measure whether the distance L is within Within the allowable error range, first take out the forging 1', then measure the distance L1 between the end face of the forging 1' and the first plane 21', and then measure the depth L2 of the blind hole, the difference between the distance L1 and the depth L2 is distance L.

The disadvantage of the prior art is that two measurements are required to obtain the distance L, and a certain error will be generated in both measurements, thereby increasing the error of the distance L, and the measurement process takes a long time.

Contents of the invention

The purpose of the present invention is to provide a method to improve measurement efficiency and accuracy of measurement values.

For reaching this purpose, the present invention adopts following technical scheme:

A measuring device for forgings, comprising a sleeve, and further comprising:

a lower detection head, the lower end surface of which is used to abut against the first plane of the forging to be detected;

The upper detection assembly includes an upper detection head, the lower end surface of the upper detection head is used to abut against the second plane of the forging; the upper detection head can move along the axial direction of the sleeve to approach or move away from the lower detection head;

A length measuring instrument, when the distance between the lower end surface of the lower detection head and the lower end surface of the upper detection head along the axial direction of the sleeve is a first preset value, the upper detection assembly can trigger the length A measuring instrument, the length measuring instrument is used to measure the displacement that occurs after the upper detection head triggers the length measuring instrument;

The lower detection head, the upper detection component and the length measuring instrument are all arranged on the sleeve.

Preferably, the lower end of the lower detection head is provided with a first groove, the lower end surface of the groove wall of the first groove is used to abut against the first plane, and the lower detection head is arranged in the first groove in the slot.

Preferably, the upper detection assembly further includes a pressure gauge block for triggering the length measuring instrument, and a detection rod arranged along the axial direction of the sleeve, and the upper detection head and the pressure gauge block are respectively arranged at both ends of the detection rod.

Preferably, the length measuring instrument includes a dial indicator arranged on the sleeve.

Preferably, the forging measuring device further includes a clamping assembly arranged on the sleeve.

Preferably, the clamping assembly includes:

Two clamping jaws are both rotatably arranged on the lower detection head for clamping or releasing the forging; the lower end surface of the clamping jaws is located on the upper side of the lower end surface of the upper detection head, and at least one of the A convex portion is provided on the upper end of the jaw and on the side close to the other jaw;

The push rod is arranged in the sleeve, and can move along the axial direction of the sleeve, so that the lower end of the push rod can be inserted into or withdrawn from the protrusion between the two jaws, so that the two The lower end of each of the jaws approaches or moves away.

Preferably, the two jaws are rotatably connected to the lower detection head through two pin shafts, a first elastic member is connected between the two jaws, and the first elastic member and the pin The shafts are all arranged on the lower side of the protrusions.

Preferably, the lower end of the lower detection head is provided with a first groove, and the side wall of the lower detection head is provided with two opposite second grooves along the axial direction of the sleeve. The claws are respectively arranged in the two second grooves.

Preferably, the clamping assembly further includes a second elastic member, and two ends of the second elastic member are respectively connected to the push rod and the sleeve.

Preferably, the push rod is provided with a waist-shaped hole along its axial direction, and the sleeve is provided with a limit post, and the limit post is arranged in the waist-shaped hole and can be positioned relative to the waist-shaped hole. The hole moves up and down.

Beneficial effects of the present invention: the upper and lower detection heads can approach or move away from the axial direction of the sleeve, thereby abutting on different planes of the forging, the distance between the lower end surface of the upper detection head and the lower end surface of the lower detection head is the first The distance between the first plane and the second plane, so the distance between the two planes of the forging can be determined only after one measurement. The measurement method is simple and the measurement efficiency is high.

Description of drawings

Fig. 1 is a sectional view of a forging in the prior art;

Fig. 2 is the front view of forging measuring device among the present invention;

Fig. 3 is the sectional view of forging measuring device among the present invention;

Fig. 4 is a schematic structural view of the forging measuring device in the present invention when no sleeve, inner sleeve and lower detection head are provided;

Fig. 5 is a schematic structural diagram of the lower detection head in the present invention.

In the picture:

1', forging; 21', first plane; 22', second plane;

1. Forgings;

2. Lower detection head; 21. First groove; 22. Second groove; 23. Guide hole;

31. Upper detection head; 32. Detection rod; 33. Pressure gauge block;

4. Dial indicator; 41. Detection head; 5. Sleeve;

61. Jaw; 611. Convex part; 62. Push rod; 621. Waist hole; 63. Pin shaft; 64. First spring; 65. Second spring; 66. Limit post; 67. Handle;

7. Inner sleeve; 8. Suspension assembly; 81. Hoop; 82. Suspension rod.

Detailed ways

The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only the parts related to the present invention are shown in the drawings but not all of them.

Some orientation words are defined in the present invention. In the case of no contrary description, the orientation words used such as "upper" and "lower" refer to the definition of the forging measurement device provided by the present invention under normal use, and are consistent with the figure The up and down directions indicated by the arrow "H" in 2 are consistent, and the direction indicated by the arrow is "down". These orientation words are adopted for easy understanding, and thus do not constitute a limitation of the protection scope of the present invention.

This embodiment provides a forging measuring device, which is mainly but not limited to be used in the measurement of the distance L between the bottom wall of the blind hole of the forging 1 and the end face of the flange as shown in Figure 1, so as to improve the measurement efficiency and Accuracy of Measurements.

As shown in Figures 2 and 3, the forging measuring device provided in this embodiment includes a sleeve 5, a lower detection head 2, an upper detection assembly, and a length measuring instrument. The upper detection assembly includes an upper detection head 31, a lower detection head 2 , the upper detection component and the length measuring instrument are all arranged on the sleeve 5 .

The lower end surface of the lower detection head 2 is used to abut against the first plane of the forging 1 to be detected; the lower end surface of the upper detection head 31 is used to abut against the second plane of the forging 1; Move to approach or move away from the lower detection head 2; when the distance between the lower end surface of the lower detection head 2 and the lower end surface of the upper detection head 31 along the axial direction of the sleeve 5 is the first preset value, the upper detection assembly can trigger the length measuring instrument , the length measuring instrument is used to measure the displacement that occurs after the upper detection head 31 triggers the length measuring instrument.

The upper detection head 31 and the lower detection head 2 can approach or move away from the axial direction of the sleeve 5, thereby abutting on different planes of the forging 1, the distance between the lower end surface of the upper detection head 31 and the lower end surface of the lower detection head 2 is is the distance between the first plane and the second plane, so the distance between the two planes of the forging 1 can be determined only after one measurement, the measurement method is simple, and the measurement efficiency is high. In this embodiment, the first plane can be the end face of the flange of the forging 1, and the second plane can be the groove bottom of the blind hole. When the forging 1 is a finished product, the distance between the first plane and the second plane is required to be L±L0, The first preset value is L+L0, when the distance between the lower end surface of the upper detection head 31 and the lower end surface of the lower detection head 2 is the first preset value, the upper detection assembly can trigger the length measuring instrument, and the upper detection head 31 continues Movement, the length measuring instrument measures the displacement L1 generated after the upper detection head 31 continues to move, as long as the displacement L1 is within the range of 2*L0, the size of the forging 1 can meet the requirements.

As shown in FIG. 3 , an inner sleeve 7 is arranged between the lower detection head 2 and the sleeve 5 , and the shape of the detection head 41 can be set as a cylinder. The lower end of the inner sleeve 7 is provided with a flange, the lower detection head 2 and the sleeve 5 are respectively arranged on both sides of the flange, the body part of the inner sleeve 7 is arranged in the sleeve 5, the lower detection head 2, the inner sleeve 7 and sleeve 5 are connected by screws.

The lower end of the lower detection head 2 defines a first groove 21 , the lower end surface of the groove wall of the first groove 21 is used to abut against the first plane, and the lower detection head 2 is disposed in the first groove 21 . The part from the flange of the forging 1 to the end of the forging 1 can be in the first groove 21, and the lower detection head 2 is arranged in the first groove 21, so that it can extend into the blind hole of the forging 1. When measuring , the lower end surface of the groove wall of the first groove 21 abuts against the first plane, the lower end surface of the upper detection head 31 abuts against the bottom wall of the groove of the forging 1, and the lower end surface of the groove wall of the first groove 21 is in contact with the upper surface. The distance between the lower end surfaces of the detection head 31 is the distance between the first plane and the second plane. In other embodiments, the lower detection head 2 can also be two flat plates arranged at intervals on the sleeve 5 , the lower end surface of the flat plate abuts against the first plane, and the lower detection head 2 is arranged between the two flat plates.

As shown in Figure 4 and Figure 5, the upper detection assembly also includes a pressure gauge block 33 for triggering the length measuring instrument, and a detection rod 32 arranged along the axis of the sleeve 5, and the upper detection head 31 and the pressure gauge block 33 are respectively arranged at both ends of the detection rod 32. Specifically, the guide hole 23 can be set on the lower detection head 2, the detection rod 32 can be arranged in the guide hole 23, and can slide along the axis of the guide hole 23, and the guide hole 23 plays a guiding role for the movement of the detection rod 32, which can make The movement of the detection rod 32 and the upper detection head 31 is more stable. In other embodiments, a guide hole can also be provided on the sleeve 5 along its axial direction, and the detection rod 32 can be passed through the guide hole of the sleeve 5 .

As shown in FIG. 4 , the length measuring instrument includes a dial indicator 4 connected to a sleeve 5 . The dial indicator 4 is the dial indicator 4 in the prior art, the measurement accuracy of the dial indicator 4 is high, and the cost is low, and it includes a meter body, a measuring rod connected to the meter body and a measuring head connected to the end of the measuring rod , the axial direction of the measuring rod is consistent with the axial direction of the sleeve 5, and the measuring rod is located above the meter body. When measuring the displacement L1, the pressure gauge block 33 abuts against the detection head 41 of the dial gauge 4, and the dial gauge 4 The measuring head moves downwards. The dial indicator 4 can show the displacement L1 of the pressure gauge block 33 after the pressure gauge block 33 abuts on the detection head 41. Since the upper detection head 31 and the pressure gauge block 33 are respectively connected to the two ends of the detection rod 32, the pressure gauge The displacement L1 of the block 33 is the displacement L1 of the upper detection head 31 .

The forging measuring device also includes a clamping assembly arranged on the sleeve 5 . When the size of the forging 1 is qualified, the clamping component withdraws the forging 1 from the forging station, and the detection and clamping of the forging 1 are completed at the same time, saving the forging process and improving work efficiency, and the forging measuring device occupies a small space and is convenient for storage and arrangement .

As shown in FIGS. 3-5 , the clamping assembly includes two clamping jaws 61 , a push rod 62 , a first elastic member and a second elastic member.

Both clamping jaws 61 are rotatably arranged on the lower detection head 2 for clamping or releasing the forging 1 . The side wall of the lower detection head 2 is provided with two opposite second grooves 22 along its axial direction, and the two jaws 61 are respectively arranged in the two second grooves 22, and the first groove 21 is provided with No groove wall is provided at the position of the second groove 22 . The two clamping jaws 61 can move in the second groove 22 to move closer or farther away, so as to realize the clamping and releasing of the forging 1 without affecting the dimensional measurement.

The lower end surface of the jaw 61 is located on the upper side of the lower end surface of the upper detection head 31, the jaw 61 will not prevent the lower detection head 2 from abutting against the first plane, and the jaw 61 can be clamped or clamped while measuring the size of the forging 1 Let go of forging 1. The sides where the lower ends of the two jaws 61 are close to each other have a circular arc structure, which is convenient for clamping the cylindrical forging 1 . A protrusion 611 is provided on the upper end of at least one jaw 61 and on a side close to the other jaw 61 . In this embodiment, protrusions 611 may be provided on sides of the two jaws 61 that are close to each other.

The two jaws 61 can be rotatably connected to the lower detection head 2 through two pin shafts 63 respectively. A first elastic member is connected between the two jaws 61. underside. Specifically, the first elastic member may be a first spring 64 .

The push rod 62 is arranged in the sleeve 5, and can move along the axial direction of the sleeve 5, so that the lower end of the push rod 62 is inserted into or withdrawn from the protrusion 611 between the two jaws 61, so that the two jaws 61 The lower end approaches or moves away.

Specifically, the lower end of the push rod 62 is configured as a conical structure, which is convenient to be inserted between the two protrusions 611. When the lower end of the push rod 62 is inserted between the two protrusions, the two jaws 61 approach each other, and the jaws 61 In the clamping state, the first spring 64 is in a compressed state. When the lower end of the push rod 62 exits between the two projections, the lower ends of the two jaws 61 are driven by the first spring 64, and the lower ends of the jaws 61 are away from each other. Open up. By inserting or withdrawing from the protrusion 611 by the push rod 62 to control the opening or clamping of the two jaws 61, the length of the jaws 61 and the space required for the opening or clamping of the jaws 61 can be shortened, so that the entire forging can be measured The device takes up little space during operation.

The clamping assembly further includes a second elastic member, and the two ends of the second elastic member are respectively connected to the push rod 62 and the sleeve 5 . The second elastic member can be a second spring 65, the second spring 65 is sleeved on the push rod 62, and the push rod 62 is provided with a protruding ring, one end of the second spring 65 is connected to the protruding ring, and the other end is connected to the sleeve 5 and located on the upper side of the raised ring. When the lower end of the push rod 62 is located between the two protrusions 611, the second spring 65 is in a compressed state, and the push rod 62 is forced downward to ensure that the end of the push rod 62 is always inserted into the protrusions of the two jaws 61. Section 611. The lower end of the push rod 62 is arranged in the inner sleeve 7, and the gap between the push rod 62 and the inner wall of the inner sleeve 7 can be set smaller, which can ensure that the push rod 62 can move up and down on the one hand, and the inner sleeve 7 can move up and down on the other hand. It acts as a guide for the movement of the push rod 62.

The push rod 62 is provided with a waist hole 621 along its axial direction, and the sleeve 5 is provided with a limiting column 66 . The limiting column 66 is arranged in the waist hole 621 and can move up and down relative to the waist hole 621 . The length of the waist hole 621 is the distance that the push rod 62 moves up and down. The waist hole 621 and the limit post 66 limit the movement distance of the push rod 62 to prevent the push rod 62 from detaching from the sleeve 5 .

The upper end of the push rod 62 is also connected with a handle 67, which is convenient for holding the handle 67 to drive the push rod 62 to move up and down.

The forging measurement device also includes a suspension assembly 8. The suspension assembly 8 includes a hoop 81 and a suspension rod 82. The hoop 81 is connected to the outer wall of the sleeve 5, and the suspension rod 82 is connected to the hoop 81. The forging can be made by the suspension assembly 8. The measuring device is hung on other equipment to facilitate the use of the forging measuring device.

The working engineering of the forging measuring device in the present embodiment is as follows:

1. Hang the forging measuring device on other equipment through the suspension assembly 8, and the end of the lower detection head 2 faces downward;

2. Lift the handle 67 upwards, so that the conical part of the push rod 62 is separated from the convex part 611 of the two jaws 61, and the jaws 61 are in an open state under the driving action of the first spring 64; The lower end surface abuts against the first plane of the forging 1; the handle 67 is released, the push rod 62 is driven by the second spring 65, and the conical part of the push rod 62 is inserted into the convex part 611 of the two clamping jaws 61, and the clamping jaw 61 in a clamped state;

3. Push down the detection rod 32, if the pressure gauge block 33 abuts against the detection head 41 of the dial indicator 4, the dial indicator 4 will enter the measurement state when it is triggered, and continue to push the push rod 62 downward to make the upper detection head 31 Butt against the second plane of forging 1, read the degree of dial indicator 4, check whether the ratio of dial indicator 4 is greater than 2*L0, if it is greater than 2*L0, the size of forging 1 is unqualified;

When the lower detection head 2 abuts against the first plane of the forging 1, and the upper detection head 31 abuts against the second plane of the forging 1, if the pressure gauge block 33 still cannot abut against the detection head 41 of the dial gauge 4, it means The distance between the first plane and the second plane is too large, and the size of forging 1 is unqualified;

4. After the size measurement is completed, if the product is qualified, lift the forging measuring device upward to make the forging 1 leave the forging station; lift the handle 67 upward, so that the conical part of the push rod 62 is separated from the convex part 611 of the two jaws 61. Driven by the first spring 64, the lower ends of the two clamping jaws 61 are separated from each other, the clamping jaws 61 are in an open state, the workpiece falls, and a process of handling and testing the forging 1 is completed.

Apparently, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the implementation of the present invention. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. All modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the claims of the present invention.

Claims (10)

1. a kind of forging measuring device, including sleeve (5), which is characterized in that further include：

Lower detector (2), lower face are used to abut the first plane of forging to be detected (1)；

Upper detection components, including upper detector (31), the lower face of the upper detector (31) is for abutting the forging (1) Second plane；The upper detector (31) can along the sleeve (5) axial movement with closer or far from the lower detector (2)；

Length measuring instrument, when the lower face of the lower face of the lower detector (2) and the upper detector (31) is along the sleeve (5) when axial distance is the first preset value, the upper detection components can trigger the length measuring instrument, and the length is surveyed Amount instrument is used to measure the upper detector (31) and triggers the displacement occurred after the length measuring instrument；

The lower detector (2), the upper detection components and the length measuring instrument may be contained on the sleeve (5).

2. forging measuring device according to claim 1, which is characterized in that the lower end of the lower detector (2) opens up One groove (21), the lower face of the cell wall of first groove (21) is for abutting first plane, the lower detector (2) It is set in first groove (21).

3. forging measuring device according to claim 1, which is characterized in that the upper detection components further include for triggering The pressure table block (33) of the length measuring instrument and the detection bar (32) being axially arranged along the sleeve (5), the upper detector (31) and the pressure table block (33) is respectively arranged at the both ends of the detection bar (32).

4. forging measuring device according to claim 1, which is characterized in that the length measuring instrument is described including being set to The dial gauge (4) of sleeve (5).

5. forging measuring device according to any one of claims 1-4, which is characterized in that the forging measuring device is also Including the gripper assembly being set on sleeve (5).

6. forging measuring device according to claim 5, which is characterized in that the gripper assembly includes：

Two clamping jaws (61) are rotatably dispose on the lower detector (2), for gripping or decontroling the forging (1)；It is described The lower face of clamping jaw (61) is located at the upside of the lower face of the upper detector (31), the upper end of at least one clamping jaw (61) And the side of another clamping jaw (61) is provided with protrusion (611)；

Push rod (62) is set in the sleeve (5), and can be along the axial movement of the sleeve (5), so that the push rod (62) lower end is inserted into or exits the protrusion (611) between two clamping jaws (61), and two clamping jaws (61) are made Lower end closer or far from.

7. forging measuring device according to claim 6, which is characterized in that two clamping jaws (61) pass through two respectively Axis pin (63) is rotatably connected on the lower detector (2), and the first elastic component is connected between two clamping jaws (61), described First elastic component and the axis pin (63) may be contained within the downside of the protrusion (611).

8. forging measuring device according to claim 6, which is characterized in that the lower end of the lower detector (2) opens up One groove (21), opens up that there are two opposite second is recessed on the side wall of the lower detector (2) and along the axial direction of the sleeve (5) Slot (22), two clamping jaws (61) are separately positioned in two second grooves (22).

9. forging measuring device according to claim 6, which is characterized in that the gripper assembly further includes the second elasticity The both ends of part, second elastic component are connected to the push rod (62) and the sleeve (5).

10. forging measuring device according to claim 6, which is characterized in that its axially setting of push rod (62) upper edge There is waist-shaped hole (621), limited post (66) is provided on the sleeve (5), the limited post (66) is set to the waist-shaped hole (621) it in, and can move up and down relative to the waist-shaped hole (621).