Auxiliary tool for rapidly measuring center distance

Abstract

The auxiliary tool for quickly measuring the center distance is suitable for quickly measuring the center distance between pin cones on a case, and comprises a first support, a second support and a fixed knob, the fixed knob sequentially penetrates through the central areas of the first support and the second support, and the first support and the second support are connected in a relatively rotatable mode; the first support and the second support are arranged in a cambered surface transition structure, two ends of the first support and the second support are not positioned on the same straight line, one ends of the first support and the second support are respectively provided with a measuring shaft, the other ends are respectively provided with a sleeve, and the sleeve is provided with a first hole matched with a pin cone in shape. And the pin cone center distance can be rapidly measured.

Description

Technical Field

[0001] The utility model relates to the technical field of size measuring tooling, in particular to an auxiliary tooling for quickly measuring center distance. Background Art

[0002] like Figure 1 As shown in the figure, the space around the installation position of the two taper pins on the existing mounting frame is small and there are many obstructions, so the axial center distance M can only be measured through the space above. There are other mounting structures between the two pin sleeves on the chassis. The traditional way to measure the axial center distance M of the two taper pins is to use a three-coordinate measuring machine to measure it. However, for products with a batch size of more than 10 pieces, the three-coordinate measuring machine is inefficient and time-consuming. The existing measuring tools cannot directly measure the center distance M between the two taper pins, and the use efficiency is low. Utility Model Content

[0003] In view of this, the utility model provides an auxiliary tool for quickly measuring center distance, which solves the technical problem of low efficiency of existing measuring tools.

[0004] An auxiliary tool for quickly measuring center distance, suitable for quickly measuring the center distance between pin cones on a chassis, comprising a first bracket, a second bracket and a fixed knob, wherein the fixed knob passes through the central area of ​​the first bracket and the second bracket in sequence, and connects the first bracket and the second bracket in a relatively rotatable manner;

[0005] The first bracket and the second bracket are arranged in a structure with an arc transition, and the two ends are not located in the same straight line, wherein the first bracket and the second bracket are respectively provided with a measuring axis at one end and a sleeve is respectively installed at the other end, and the sleeve is provided with a first hole adapted to the pin cone shape.

[0006] Preferably, a mounting shaft with a keyway is provided on the side of the sleeve away from the first hole;

[0007] The first bracket and the second bracket are respectively provided with a second threaded hole on the side of the end away from the measuring axis, and the side of the first bracket and the second bracket away from the measuring axis is provided with a third hole, wherein:

[0008] The installation shaft 41 is installed in the third hole, screwed into the second hole through a fastener and the end is clamped in the keyway to fix the measuring shaft.

[0009] Preferably, the measuring axis and the sleeve measuring axis are located on the facing sides of the first bracket and the second bracket.

[0010] Beneficial Effects

[0011] The tooling has a simple structure, convenient operation and easy implementation. It can expand the original three-coordinate measuring machine's only measuring instrument to one that can be used to measure using ordinary length measuring instruments, and shorten the original measuring time ≥30 minutes to 10-18 minutes, thereby improving the measuring efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 It is a schematic diagram of the pin cone position in the prior art;

[0014] Figure 2 It is a schematic diagram of the overall structure;

[0015] Figure 3 It is a front view of the first bracket and the second bracket after installation;

[0016] Figure 4 A schematic diagram of the first bracket and the second bracket being connected in a rotational manner. DETAILED DESCRIPTION

[0017] The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0018] The following describes the embodiments of the present disclosure through specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of the embodiments. The present disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present disclosure.

[0019] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present disclosure, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0020] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present disclosure. The drawings only show components related to the present disclosure rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0021] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, one skilled in the art will appreciate that aspects may be practiced without these specific details.

[0022] See also Figures 2 to 4 The auxiliary tooling for rapid measurement of center distance shown is suitable for rapid measurement of center distance between pin cones on the chassis, such as Figure 2 As shown, it includes a first bracket 2, a second bracket 3 and a fixed knob 1, and the fixed knob 1 passes through the central area of ​​the first bracket 2 and the second bracket 3 in sequence, connecting the first bracket 2 and the second bracket 3 in a relatively rotatable manner. The material of the first bracket 2 and the second bracket 3 is GCr15, the heat treatment hardness HRC58-65, and the surface roughness Ra0.8μm.

[0023] like Figure 3 As shown, the first bracket 2 and the second bracket 3 are arranged in a structure with an arc transition, and the two ends are not located on the same straight line, wherein the first bracket 2 and the second bracket 3 are respectively provided with a measuring shaft 5 at one end, and a sleeve 4 is installed at the other end, and the sleeve 4 is provided with a first hole 43 adapted to the pin cone shape.

[0024] When measuring the pin cone center distance M, the sleeves 4 on the second bracket 3 and the first bracket 2 are respectively nested in the pin cones, so that the positions of the measuring axes 5 on the second bracket 3 and the first bracket 2 are determined. The measuring tool is used to measure the distance between the two measuring axes 5, and the axial center distance of adjacent pin cones can be measured. The axial center distance minus the diameter of the sleeve 4 is the center distance M, which avoids the low efficiency of the three-dimensional coordinate measuring machine and has a low cost.

[0025] As a specific embodiment provided in this case, a mounting shaft 41 with a keyway 42 is provided on the side of the sleeve 4 away from the first hole 43;

[0026] The first bracket 2 and the second bracket 3 are respectively provided with a second threaded hole 6 on the side of the end away from the measuring axis 5, and the side of the first bracket 2 and the second bracket 3 away from the measuring axis 5 is provided with a third hole 7, wherein:

[0027] The installation shaft 41 is installed in the third hole 7, screwed into the second hole 6 through the fastener 8 and the end is clamped in the keyway 42 to fix the measuring shaft 5. Pin cones of different sizes can be obtained by replacing sleeves 4 of different models.

[0028] Furthermore, the measuring shaft 5 and the sleeve 4 are located on the opposite sides of the first bracket 2 and the second bracket 3, that is, the measuring shafts 5 on the first bracket 2 and the second bracket 3 are both installed on the left side.

[0029] The sleeves 4 on the first bracket 2 and the second bracket 3 are both installed on the side surface on the right side.

[0030] As a specific implementation provided in this case, the first bracket 2 includes a first rod 21, a first arc-shaped portion 22 and a second rod 23, wherein the first rod 21 and the second rod 23 are respectively installed on both sides of the first arc-shaped portion 22, and the first arc-shaped portion 22 is used for switching the first rod 21 and the second rod 23, and the first rod 21 and the second rod 23 after switching are parallel.

[0031] Furthermore, the first rod 21 and the second rod 23 are parallel and not in the same straight line.

[0032] As a specific embodiment provided in this case, the second bracket 3 includes a third rod 31, a second arc portion 32 and a fourth rod 33, wherein the third rod 31 and the fourth rod 33 are respectively installed on both sides of the second arc portion 32, and the second arc portion 32 is used for switching the third rod 31 and the fourth rod 33, and the third rod 31 and the fourth rod 33 are parallel after switching. This structure can adapt to the measurement of a smaller center distance M and has strong versatility.

[0033] Furthermore, the third rod 31 and the fourth rod 33 are parallel and not in the same straight line.

[0034] As a specific implementation method provided in this case, Figure 4 As shown, the first arc-shaped portion 22 and the second arc-shaped portion 32 are provided with notches or grooves of matching shapes on the sides facing each other, and a lug 11 is provided at one end of the fixed knob 1, and a fourth hole 111 with an internal thread is provided at the end of the lug 11.

[0035] An assembly hole 221 is provided in the central area of ​​the first arc-shaped portion 22, and one end of the fixed knob 1 is installed in the assembly hole 221 in a clearance fit manner;

[0036] The first arc portion 22 is provided with a threaded column 321 at a position corresponding to the assembly hole 221;

[0037] By installing the lug 11 on the threaded column 321 , the first bracket 2 and the second bracket 3 are connected in a relatively rotatable manner.

[0038] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present disclosure should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An auxiliary tool for quickly measuring the center distance, suitable for quickly measuring the center distance between pin cones on a chassis, characterized in that: It comprises a first bracket (2), a second bracket (3) and a fixing knob (1), wherein the fixing knob (1) passes through the central areas of the first bracket (2) and the second bracket (3) in sequence and is used to connect the first bracket (2) and the second bracket (3) in a relatively rotatable manner; The first bracket (2) and the second bracket (3) are arranged in a structure with an arc transition, and both ends are not located on the same straight line, wherein one end of the first bracket (2) and the second bracket (3) are respectively provided with a measuring shaft (5), and the other end is respectively installed with a sleeve (4), and the sleeve (4) is provided with a first hole (43) adapted to the shape of the pin cone.

2. The auxiliary tooling according to claim 1, characterized in that: A mounting shaft (41) with a keyway (42) is provided on the side of the sleeve (4) away from the first hole (43); The first bracket (2) and the second bracket (3) are respectively provided with a second hole (6) on the side of the end away from the measuring axis (5), and a third hole (7) is installed on the side of the first bracket (2) and the second bracket (3) away from the measuring axis (5), wherein: The installation shaft (41) is installed in the third hole (7), screwed into the second hole (6) through a fastener (8) and the end is clamped in the keyway (42), so as to fix the measuring shaft (5).

3. The auxiliary tooling according to claim 1, characterized in that: The measuring shaft (5) and the sleeve (4) are respectively located on the facing sides of the first bracket (2) and the second bracket (3).

4. The auxiliary tooling according to claim 1, characterized in that: The first bracket (2) comprises a first rod (21), a first arc-shaped portion (22) and a second rod (23), wherein the first rod (21) and the second rod (23) are respectively mounted on both sides of the first arc-shaped portion (22), and the first arc-shaped portion (22) is used for switching the first rod (21) and the second rod (23), and after the switching, the first rod (21) and the second rod (23) are parallel.

5. The auxiliary tooling according to claim 4, characterized in that: The first rod (21) and the second rod (23) are parallel and not located in the same straight line.

6. The auxiliary tooling according to claim 4, characterized in that: The second bracket (3) comprises a third rod (31), a second arc-shaped portion (32) and a fourth rod (33), wherein the third rod (31) and the fourth rod (33) are respectively mounted on both sides of the second arc-shaped portion (32), and the second arc-shaped portion (32) is used for switching the third rod (31) and the fourth rod (33), and after the switching, the third rod (31) and the fourth rod (33) are parallel.

7. The auxiliary tooling according to claim 6, characterized in that: The third rod (31) and the fourth rod (33) are parallel and not located in the same straight line.

8. The auxiliary tooling according to claim 6, characterized in that: The first arc-shaped portion (22) and the second arc-shaped portion (32) are provided with notches or grooves of matching shapes on the sides facing each other, and one end of the fixing knob (1) is provided with a lug (11), and the end of the lug (11) is provided with a fourth hole (111) with an internal thread, wherein: An assembly hole (221) is provided in the central area of ​​the first arc-shaped portion (22), and one end of the fixed knob (1) is installed in the assembly hole (221) in a clearance fit manner; The first arc-shaped portion (22) is provided with a threaded column (321) at a position corresponding to the assembly hole (221); By installing the lug (11) on the threaded column (321), the first bracket (2) and the second bracket (3) are connected in a relatively rotatable manner.

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