CN219714212U

CN219714212U - Position degree gauge

Info

Publication number: CN219714212U
Application number: CN202321230133.9U
Authority: CN
Inventors: 周爱东; 薛博文; 孙晓冕; 王渭新; 邹海滨; 王志学; 史锐; 王威; 范米谦; 周洪海
Original assignee: CITIC Dicastal Co Ltd
Current assignee: CITIC Dicastal Co Ltd
Priority date: 2023-05-21
Filing date: 2023-05-21
Publication date: 2023-09-19
Anticipated expiration: 2033-05-21

Abstract

A position gauge, comprising: the device comprises a limiting block, a first die holder with a first die holder inner hole, a second die holder with a second die holder inner hole, a positioning block with a positioning circular ring end face, a conical positioning mechanism with a positioning cone, a pressing mechanism, a first guide sleeve, a second guide sleeve, a first detection pin in clearance fit with a first guide hole of the first guide sleeve, and a second detection pin in clearance fit with a second guide hole of the second guide sleeve. When the workpiece positioning device is used, the workpiece reference surface is attached to the end face of the positioning circular ring, the positioning cone is used for tensioning the orifice of the workpiece reference hole, the limiting end face of the limiting block is attached to the side face of the workpiece lug, the workpiece is pressed and positioned through the pressing mechanism, each detection pin is inserted along the corresponding guide sleeve, if the detection pin can be inserted into the corresponding workpiece hole, the position of the workpiece hole is judged to be qualified, otherwise, the position relation of the workpiece hole relative to the workpiece reference can be rapidly measured.

Description

Position degree gauge

Technical Field

The utility model relates to a gauge, in particular to a position degree gauge.

Background

In the field of assembly of automobile parts, special detection requirements are often met, wherein the detection of the position degree of a machining hole of a bracket product is very important, the assembly can be normally carried out only by ensuring that the position degree of each hole relative to a workpiece reference is qualified, and otherwise, adverse effects such as falling off or abnormal sound of a connecting piece are easily caused. Because the support class product is small, quantity is many, and machine processing position degree detection frequency requirement is higher, and three-dimensional detection beat is slow, so can't satisfy on-the-spot high frequency detection demand, consequently need a simple and easy-to-use check utensil to realize detecting.

Disclosure of Invention

In order to solve the problems, the utility model aims to provide a position degree gauge which can rapidly measure whether the position degree of a machining hole of a bracket product relative to a workpiece reference is qualified or not.

According to an aspect of the present utility model, there is provided a position degree gauge, including: the device comprises a bottom plate, a limiting block with a limiting end face, a first die holder with a first die holder inner hole, a second die holder with a second die holder inner hole, a positioning block with a positioning circular ring end face, a conical positioning mechanism with a positioning cone, a pressing mechanism, a first guide sleeve for being assembled into the first die holder inner hole, a second guide sleeve for being assembled into the second die holder inner hole, a first detection pin with a first guide part for being in clearance fit with a first guide hole of the first guide sleeve, and a second detection pin with a second guide part for being in clearance fit with a second guide hole of the second guide sleeve, wherein the first lower end face of the first die holder, the second lower end face of the second die holder, the third lower end face of the limiting block and the fourth lower end face of the positioning block are respectively attached to the upper end face of the bottom plate, the inner circle diameter of the positioning circular ring end face is larger than the large-diameter end part of the positioning cone, and the small-diameter end part of the positioning cone is exposed from the positioning circular ring end face.

Preferably, the positioning block further comprises: the second positioning column is matched with the first positioning hole of the bottom plate, and the second positioning hole is used for installing the conical positioning mechanism.

Preferably, the axes of the outer circle and the inner circle of the end face of the positioning ring are coaxial with the second positioning column and the second positioning hole.

Preferably, the cone positioning mechanism further comprises: the positioning device comprises a first positioning column assembled into a second positioning hole, a spring, a limiting waist hole and a positioning pin, wherein the spring is arranged around the circumference of the first positioning column and compressed in a space below a positioning cone and above an inner hole end face of one side, far away from the positioning circular ring end face, of a positioning block, the limiting waist hole radially penetrates through the first positioning column, and the positioning pin is used for penetrating into the limiting waist hole and a corresponding positioning pin hole on the positioning block.

Preferably, the hold-down mechanism comprises: the three-jaw pressing head is fixedly connected with the pressing pliers.

Preferably, the first detection pin further includes: and a first detection part coaxial with the first guide part.

Preferably, the second detection pin further includes: and a second detection part coaxial with the second guide part.

Preferably, during detection, the workpiece datum plane of the workpiece to be detected is attached to the end face of the positioning ring, the small-diameter end part of the positioning cone is tightly arranged at the orifice of the workpiece datum hole of the workpiece to be detected, the limiting end face is attached to the first side face of the workpiece to be detected, the pressing mechanism presses the workpiece to be detected on the positioning block, the vertical theoretical distance between the first guide hole and the first positioning hole is equal to the vertical theoretical distance between the first hole of the workpiece to be detected and the workpiece datum hole, the horizontal theoretical distance between the limiting end face and the first positioning hole is equal to the horizontal theoretical distance between the first side face of the workpiece and the workpiece datum hole, the vertical theoretical distance between the first guide hole and the positioning ring end face is equal to the vertical theoretical distance between the first hole and the workpiece datum plane, and the vertical theoretical distance between the second guide hole and the positioning ring end face is equal to the height theoretical distance between the second hole and the workpiece datum plane.

Preferably, the annular extent of the locating annular end face is greater than the workpiece datum plane.

The utility model can rapidly measure the position relation of the workpiece hole relative to the workpiece reference in use; meanwhile, the device has the characteristics of simple structure, high detection precision, convenience in use, low manufacturing cost and the like.

Drawings

Fig. 1 is a front view of a position gauge according to the present utility model.

Fig. 2 is a cross-sectional view A-A of fig. 1.

Fig. 3 is a B-B cross-sectional view of fig. 1.

Fig. 4 is a C-C cross-sectional view of fig. 1.

Fig. 5 is a front view of the first detection pin of the position degree gauge.

Fig. 6 is a front view of the detection pin of the position gauge.

Fig. 7 is a front view of a workpiece to be measured to which the position degree gauge is applied.

Fig. 8 is a left side view of a workpiece to be measured to which the position degree gauge is applied.

In the figure, a 1-bottom plate, a 2-limiting block, a 3-first die holder, a 4-first guide sleeve, a 5-detection pin, a 6-detection pin, a 7-second guide sleeve, an 8-second die holder, a 9-conical positioning mechanism, a 10-positioning block, an 11-pressing mechanism, a 1 a-upper end face, a 1 b-first positioning hole, a 2 a-limiting end face, a 2 b-third lower end face, a 3 a-first die holder end face, a 3 b-first die holder inner hole, a 3 c-first lower end face, a 4 a-first flange face, a 4 b-first guide hole, a 5 a-first handle, a 5 b-first guide part, a 5 c-first detection part, a 6 a-second handle, a 6 b-second guide part, a 6 c-second detection part, a 7 a-second flange face, a 7 b-second guide hole, an 8 a-second die holder end face, an 8 b-second lower end face, a 9 a-positioning cone, a 9 b-spring, a 9 c-waist-limiting hole, a 9 e-positioning pin, a 9 c-second positioning hole, a 9 e-second positioning hole, a 10 e-positioning pin hole, a 10 e-second positioning pin hole, a 10f, a positioning cylinder, a 10 c-second positioning hole, a positioning clamp, a 10 b-second positioning pin, a positioning hole, a 10 c-second positioning pin, a positioning clamp end face, a 10 b-positioning hole, a 10 b-second positioning hole, a positioning clamp end face, a 10b, and a positioning clamp end face, and a positioning clamp position is shown.

Detailed Description

Exemplary embodiments of the present utility model are described in detail below with reference to the attached drawings. The exemplary embodiments described below and illustrated in the drawings are intended to teach the principles of the present utility model to enable one skilled in the art to make and use the present utility model in a number of different environments and for a number of different applications. The scope of the utility model is therefore defined by the appended claims, and the exemplary embodiments are not intended, and should not be considered, as limiting the scope of the utility model. Moreover, for ease of description, the dimensions of the various elements shown in the figures are not necessarily drawn to actual scale, and references to orientation, such as upper, lower, left, right, top, bottom, etc., are based on the orientation or positional relationship shown in the figures, merely to facilitate description of the utility model and simplify description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Like elements are denoted by like or similar reference numerals throughout the drawings. Conventional structures or local constructions will be omitted when they may cause confusion or unaware of an understanding of the present disclosure.

The details and operation of the specific device according to the utility model are described below with reference to the accompanying drawings.

The position degree gauge mainly comprises a bottom plate 1, a limiting block 2, a first die holder 3, a first guide sleeve 4, a first detection pin 5, a second detection pin 6, a second guide sleeve 7, a second die holder 8, a conical positioning mechanism 9, a positioning block 10 and a pressing mechanism 11.

The base plate 1 includes: an upper end surface 1a and a first positioning hole 1b; the flatness accuracy of the upper end face 1a was 0.01mm.

The stopper 2 includes: a limiting end face 2a and a third lower end face 2b; the flatness accuracy of both is 0.01mm; the third lower end face 2b is attached to the upper end face 1a and is fixedly connected through a screw; the horizontal theoretical distance between the limiting end face 2a and the first positioning hole 1b is L10, and is equal to the horizontal theoretical distance L5 between the first side face 31 of the workpiece and the reference hole 32 of the workpiece, and the L10 debugging precision is +/-0.01 mm.

The first die holder 3 includes: a first die holder end face 3a, a first die holder inner hole 3b and a first lower end face 3c; the flatness accuracy of the first lower end face 3c is 0.01mm; the first lower end face 3c is attached to the upper end face 1a and fixed by screw connection.

The first guide bush 4 includes: a first flange surface 4a and a first guide hole 4b; the first guide sleeve 4 is assembled into the inner hole 3b of the first die holder in a pressure assembly mode, and the interference is 0.02-0.05mm; the first flange surface 4a is attached to the first die holder end surface 3 a; the vertical theoretical distance between the first guide hole 4b and the first positioning hole 1b is L6, and is equal to the vertical theoretical distance L1 between the first hole 34 of the workpiece to be detected and the workpiece reference hole 32, and the L6 debugging precision is +/-0.01 mm; the height theoretical distance between the first guide hole 4b and the positioning circular ring end face 10a is L8, and is equal to the height theoretical distance L3 between the first hole 34 and the workpiece reference surface 33, and the L8 debugging precision is +/-0.01 mm.

The first detection pin 5 includes: a first handle 5a, a first guide portion 5b, and a first detection portion 5c; the first guide part 5b is matched with the first guide hole 4b, and the clearance is not more than 0.01mm; the coaxiality precision of the first guide part 5b and the first detection part 5c is 0.005mm.

The second detection pin 6 includes: a second handle 6a, a second guide portion 6b, and a second detection portion 6c; the second guide part 6b is matched with the second guide hole 7b, and the clearance is not more than 0.01mm; the coaxiality precision of the second guide part 6b and the second detection part 6c is 0.005mm.

The second guide sleeve 7 includes: a second flange surface 7a and a second guide hole 7b; the second guide sleeve 7 is assembled into the inner hole 8b of the second die holder in a pressure assembly mode, and the interference is 0.02-0.05mm; the second flange surface 7a is attached to the second die holder end surface 8 a; the vertical theoretical distance between the second guide hole 7b and the first positioning hole 1b is L7, and is equal to the vertical theoretical distance L2 between the second hole 35 of the workpiece to be detected and the workpiece reference hole 32, and the L7 debugging precision is +/-0.01 mm; the height theoretical distance between the second guide hole 7b and the positioning circular ring end face 10a is L9, and is equal to the height theoretical distance L4 between the second hole 35 and the workpiece reference surface 33, and the L9 debugging precision is +/-0.01 mm.

The second die holder 8 includes: a second die holder end face 8a, a second die holder inner hole 8b and a second lower end face 8c; the flatness accuracy of the second lower end face 8c is 0.01mm; the second lower end face 8c is attached to the upper end face 1a and fixed by screw connection.

The taper positioning mechanism 9 includes: the positioning cone 9a, the spring 9b, the limiting waist hole 9c, the positioning pin 9d and the first positioning column 9e; the small diameter end part size of the positioning cone 9a is 0.2-0.5mm smaller than the minimum value of the dimensional tolerance of the workpiece reference hole 32, and the large diameter end part size is 0.2-0.5mm larger than the maximum value of the dimensional tolerance of the workpiece reference hole 32; the coaxiality precision of the positioning cone 9a and the first positioning column 9e is 0.005mm; the springs 9b are arranged around the circumference of the first positioning column 9e, and are integrally compressed in a space below the positioning cone 9a and above an inner hole end surface 10b on the side far away from the positioning circular ring end surface 10a in the concave cylinder part of the positioning block 10; the first positioning column 9e and the second positioning hole 10f are in small clearance fit, and the clearance is smaller than 0.01mm; the positioning pin 9d penetrates into a limiting waist hole 9c which radially penetrates through the first positioning column 9e through the positioning pin hole 10c, so that the first positioning column 9e and the second positioning hole 10f are assembled together; the long axis direction dimension of the limiting waist hole 9c is 2-3mm larger than the diameter of the positioning pin 9d, and the clearance between the short axis direction dimension and the positioning pin 9d is less than 0.01mm, so that the positioning cone 9a can stably float and stretch along the axial direction under the action of the spring 9 b.

The positioning block 10 includes: a positioning circular ring end face 10a, an inner hole end face 10b, a positioning pin hole 10c, a fourth lower end face 10d, a second positioning column 10e and a second positioning hole 10f; the annular range of the positioning annular end face 10a is larger than the workpiece reference surface 33, so that the workpiece reference surface 33 is supported sufficiently, and the flatness accuracy of the positioning annular end face 10a is 0.005mm; the coaxiality precision is ensured to be 0.005mm between the outer circle and the inner circle axis of the positioning circular ring end face 10a and the second positioning column 10e and the second positioning hole 10f; the inner diameter of the end face 10a of the positioning circular ring is 0.2-0.5mm larger than the size of the large-diameter end part of the positioning cone 9 a; the positioning pin hole 10c is in interference fit with the positioning pin 9d, and the interference is 0.02-0.05mm; the flatness accuracy of the fourth lower end face 10d is 0.01mm, and the fourth lower end face is attached to the upper end face 1a and fixedly connected through screws; the second positioning column 10e is in interference fit with the first positioning hole 1b, and the interference is 0.05-0.1mm.

The pressing mechanism 11 includes: a quick pressing clamp 11a, a pressing support seat 11b and a three-jaw pressing head 11c; the compression supporting seat 11b is fixedly connected with the bottom plate 1 through a screw; the quick press pliers 11a are assembled above the pressing support seat 11 b; the three-jaw pressing head 11c is fixedly connected with the quick pressing clamp 11a through bolts; the quick pressing pliers 11a are pulled to press the three-jaw pressing head 11c against the workpiece, so that the workpiece is pressed.

In the working process, the workpiece reference surface 33 is attached to the positioning circular ring end surface 10a, the small-diameter end part of the positioning cone 9a exposed from the positioning circular ring end surface 10a is tightly stretched to the orifice of the workpiece reference hole 32, the limiting end surface 2a is attached to the first side surface 31 (also called lug side surface) of the workpiece, the workpiece is tightly pressed by the pressing mechanism 11 to realize the positioning of the workpiece on the checking fixture, then the first detection pin 5 and the second detection pin 6 are inserted along the corresponding guide sleeve and guide hole (V, U direction shown in fig. 1), and if the workpiece can be smoothly inserted into the corresponding workpiece holes, namely the first hole 34 and the second hole 35, the position of the workpiece hole is judged to be qualified, otherwise, the workpiece hole is judged to be unqualified.

In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. Unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured" and the like should be construed broadly, as they may be fixed, removable, or integral, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances. While the utility model has been described with reference to various specific embodiments, it should be understood that numerous changes could be made within the spirit and scope of the inventive concepts described. Accordingly, it is intended that the utility model not be limited to the described embodiments, but that it have the full scope defined by the language of the following claims.

Claims

1. The utility model provides a utensil is examined to position degree which characterized in that includes: a base plate (1), a limiting block (2) with a limiting end face (2 a), a first die holder (3) with a first die holder inner hole (3 b), a second die holder (8) with a second die holder inner hole (8 b), a positioning block (10) with a positioning circular ring end face (10 a), a conical positioning mechanism (9) with a positioning cone (9 a), a pressing mechanism (11), a first guide sleeve (4) for being assembled into the first die holder inner hole (3 b), a second guide sleeve (7) for being assembled into the second die holder inner hole (8 b), a first detection pin (5) with a first guide part (5 b) for being in clearance fit with the first guide hole (4 b) of the first guide sleeve (4), a second detection pin (6) with a second guide part (6 b) for being in clearance fit with the second guide hole (7 b) of the second guide sleeve (7), wherein the first lower end face (3 c) of the first die holder (3), the second lower end face (8) of the limiting block (2), the third lower end face (2 b) of the second die holder (8) are respectively in fit with the circular ring end face (10 a) of the positioning circular ring (1 a) with a larger diameter than the positioning circular ring end face (10 a) of the positioning circular ring (1 a), the small diameter end of the positioning cone (9 a) is exposed from the positioning circular ring end face (10 a).

2. The positional tolerance gauge of claim 1, wherein the positioning block (10) further comprises: a second positioning column (10 e) matched with the first positioning hole (1 b) of the bottom plate (1), and a second positioning hole (10 f) for installing the conical positioning mechanism (9).

3. The positioning tool according to claim 1, wherein the axes of the outer circle and the inner circle of the positioning circular ring end face (10 a) are coaxial with the second positioning column (10 e) and the second positioning hole (10 f).

4. The position gauge according to claim 2, characterized in that the cone positioning mechanism (9) further comprises: the positioning device comprises a first positioning column (9 e) assembled into a second positioning hole (10 f), a spring (9 b) which is arranged around the circumference of the first positioning column (9 e) and is compressed in a space below a positioning cone (9 a) and above an inner hole end face (10 b) on one side of a positioning block (10) far away from a positioning circular ring end face (10 a), a limiting waist hole (9 c) which radially penetrates through the first positioning column (9 e), and a positioning pin (9 d) which is used for penetrating into the limiting waist hole (9 c) and a corresponding positioning pin hole (10 c) on the positioning block (10).

5. The position gauge according to claim 1, wherein the hold-down mechanism (11) comprises: the pressing support seat (11 b) is fixedly connected with the bottom plate (1), the pressing clamp (11 a) is assembled above the pressing support seat (11 b), and the three-jaw pressing head (11 c) is fixedly connected with the pressing clamp (11 a).

6. The position gauge according to claim 1, characterized in that the first detection pin (5) further comprises: and a first detection unit (5 c) coaxial with the first guide unit (5 b).

7. The position gauge according to claim 1, characterized in that the second detection pin (6) further comprises: and a second detection unit (6 c) coaxial with the second guide unit (6 b).

8. The positioning tool according to claim 2, wherein, in the detection, a workpiece reference surface (33) of the workpiece to be detected is attached to a positioning circular ring end surface (10 a), a small diameter end of a positioning cone (9 a) is tightly expanded and installed at an orifice of a workpiece reference hole (32) of the workpiece to be detected, a limiting end surface (2 a) is attached to a workpiece first side surface (31) of the workpiece to be detected, a pressing mechanism (11) presses the workpiece to be detected on the positioning block (10), a vertical theoretical distance from a first guide hole (4 b) to the first positioning hole (1 b) is equal to a vertical theoretical distance from a first hole (34) of the workpiece to be detected to the workpiece reference hole (32), a horizontal theoretical distance from the limiting end surface (2 a) to the first positioning hole (1 b) is equal to a horizontal theoretical distance from the workpiece first side surface (31) to the workpiece reference hole (32), a height theoretical distance (L3) from the first guide hole (34) to the workpiece reference surface (33) is equal to a vertical theoretical distance from a second guide hole (7 b) to the first positioning hole (35) is equal to the vertical theoretical distance from the first positioning hole (1 b) to the workpiece reference hole (32), the theoretical distance between the second guide hole (7 b) and the positioning annular end surface (10 a) is equal to the theoretical distance between the second hole (35) and the workpiece reference surface (33).

9. The positioning tool according to claim 8, wherein the annular extent of the positioning annular end surface (10 a) is larger than the workpiece reference surface (33).