Differential housing boundary dimension automatic measuring device

Abstract

The utility model discloses a differential housing boundary dimension automatic measuring device comprising a work bench, a support positioning assembly used for supporting a differential housing is arranged on the work bench, one end of the support positioning assembly is provided with an active driving assembly, and the other end of the support positioning assembly is provided with an auxiliary support assembly; the active driving assembly and the auxiliary supporting assembly are matched with the two ends of the differential mechanism shell correspondingly so as to drive the differential mechanism shell to rotate, and a measuring assembly is arranged on the side face of the supporting and positioning assembly and used for measuring the differential mechanism shell; through the above mode, the appearance size of the differential housing can be rapidly detected at any time on a production line, and the production efficiency and the convenience are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of differential detection, in particular to an automatic measuring device for the external dimensions of a differential housing. Background Art

[0002] The automobile differential is a mechanism that enables the left and right (or front and rear) drive wheels to rotate at different speeds. It is mainly composed of planetary gears, planetary wheel carrier (differential housing), half-axle gears and other parts.

[0003] When machining the differential housing, the dimensions and runout requirements of each part are relatively high. Most of the existing detection methods use micrometers and three-coordinate detection. The time required to detect a single part is much longer than the equipment processing cycle, which is inefficient. Under the requirements of mass production, the existing detection methods cannot match the processing equipment cycle, which seriously restricts the production capacity of the processing equipment and affects production efficiency. Utility Model Content

[0004] The main technical problem solved by the utility model is to provide an automatic measuring device for the external dimensions of a differential case, which can quickly detect the external dimensions of the differential case at any time on the production line, thereby improving production efficiency and convenience.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide an automatic measuring device for the external dimensions of a differential housing, including: a workbench, on which a supporting and positioning assembly for supporting the differential housing is arranged, an active driving assembly is arranged at one end of the supporting and positioning assembly, and an auxiliary supporting assembly is arranged at the other end of the supporting and positioning assembly, the active driving assembly and the auxiliary supporting assembly respectively cooperate with the two ends of the differential housing to drive the differential housing to rotate, and a measuring assembly is arranged on the side of the supporting and positioning assembly, and the measuring assembly is used to measure the differential housing.

[0006] Preferably, the support and positioning assembly comprises a first support and positioning block and a second support and positioning block, and the first support and positioning block and the second support and positioning block respectively support the diameter openings at both ends of the differential housing.

[0007] Preferably, an in-position sensor is provided at the first supporting positioning block and / or the second supporting positioning block, and the in-position sensor is used to detect whether there is a differential housing on the first supporting positioning block and / or the second supporting positioning block.

[0008] Preferably, the active drive assembly includes a main drive slide, a main drive mounting frame, a main drive motor, a first top seat, a main drive top, and an active drive member. The main drive slide is slidably matched with the workbench, one end of the active drive member is connected to the workbench and the other end is connected to the main drive slide, the main drive mounting frame is arranged on the main drive slide, the main drive motor and the first top seat are both arranged on the main drive slide, the first top seat is arranged on the main drive slide and rotatably matched with the main drive slide, the main drive top is arranged on the first top seat, and the main drive motor drives the first top seat to rotate.

[0009] Preferably, the auxiliary support assembly includes an auxiliary support frame, a second top seat, and an auxiliary top, the auxiliary support frame is arranged on the workbench, the second top seat is arranged on the auxiliary support frame, and the auxiliary top is arranged on the second top seat.

[0010] Preferably, a mounting seat is provided on the second top seat or the auxiliary support frame, and an auxiliary driving member is provided on the mounting seat. The auxiliary driving member is connected to the auxiliary top, and the auxiliary driving member is used to adjust the position between the auxiliary top and the main driving top.

[0011] Preferably, the measuring assembly includes a measuring base, a measuring bracket, a displacement sensor, a follow-up slider, and a probe. The measuring bracket is arranged on the measuring base, the displacement sensor is arranged on the measuring bracket, the follow-up slider is slidably matched with the measuring bracket and abuts against the measuring end of the displacement sensor, the follow-up slider is connected to the measuring bracket through an elastic steel sheet, and the probe is connected to the follow-up slider. When it is necessary to measure the differential case, the probe abuts against the outer wall of the differential case.

[0012] Preferably, a guide rod is provided on the measuring bracket, the guide rod passes through the follower slider, and the follower slider is slidably matched with the guide rod.

[0013] Preferably, a buffer is also provided on the measuring bracket, and the other end of the buffer is in contact with the follow-up sliding block.

[0014] Preferably, a measuring drive is provided on the lower side of the workbench, and the measuring drive is connected to the measuring base.

[0015] The beneficial effects of the utility model are as follows: the first support positioning block and the second support positioning block of the support assembly are supported at the diameter openings at both ends of the differential housing to support the position of the differential, the active drive assembly and the auxiliary support assembly cooperate with each other to drive the differential to rotate slowly, the probe of the measuring assembly fits with the differential housing so that the probe is slightly displaced with the size of the differential housing under the action of the elastic steel sheet, and then the differential is displaced to obtain the outer dimensions of the differential housing, so that the measurement can be carried out quickly and at any time on the production line, avoiding the need to send the measurement to the laboratory for three-coordinate measurement, thereby improving the convenience and efficiency of production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model when the whole body and the differential housing are matched;

[0017] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the measuring component of the utility model.

[0019] The markings of the components in the accompanying drawings are as follows:

[0020] 2. Workbench;

[0021] 3. Support and positioning assembly; 31. First support and positioning block; 32. Second support and positioning block; 33. In-position sensor;

[0022] 4. Active drive assembly; 41. Main drive slide; 42. Main drive mounting frame; 43. Main drive motor;

[0023] 44. First center seat; 45. Main driving center; 46. Active driving member;

[0024] 5. Auxiliary support assembly; 51. Auxiliary support frame; 52. Second top seat; 53. Auxiliary top seat; 54. Mounting seat; 55. Auxiliary driving member;

[0025] 6. Measuring assembly; 61. Measuring base; 62. Measuring bracket; 63. Displacement sensor; 64. Follow-up slide; 65. Probe; 66. Guide rod; 67. Buffer; 68. Elastic steel sheet;

[0026] 7. Differential housing. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0033] Physical quantities in formulas, unless otherwise specified, should be understood as basic quantities of the International System of Units, or derived quantities derived from basic quantities through mathematical operations such as multiplication, division, differentiation or integration.

[0034] Example:

[0035] refer to Figure 1-Figure 3 , an automatic measuring device for the external dimensions of a differential housing, comprising: a workbench 2 installed in a frame, a support and positioning assembly 3 for supporting a differential housing 7 is bolted to the workbench 2, an active driving assembly 4 is arranged at one end of the support and positioning assembly 3, and an auxiliary supporting assembly 5 is arranged at the other end of the support and positioning assembly 3, the active driving assembly 4 and the auxiliary supporting assembly 5 are respectively matched with the two ends of the differential housing 7 to drive the differential housing 7 to rotate, and a measuring assembly 6 is arranged on the side of the support and positioning assembly 3, and the measuring assembly 6 is used to measure the differential housing 7.

[0036] refer to Figure 1 and Figure 2 The support and positioning assembly 3 includes a first support and positioning block 31 and a second support and positioning block 32. The first support and positioning block 31 and the second support and positioning block 32 respectively support the diameter openings at both ends of the differential housing 7. In order to better support the diameter openings at both ends of the differential housing 7, the first support and positioning block 31 and the second support and positioning block 32 are both provided with V-shaped openings.

[0037] refer to Figure 1 and Figure 2 In order to facilitate the system to know whether there is a differential housing 7 on the first support positioning block 31 and the second support positioning block 32 and prevent the operator from operating incorrectly, an in-position sensor 33 is provided at the first support positioning block 31 and / or the second support positioning block 32. The in-position sensor 33 is used to detect whether there is a differential housing 7 on the first support positioning block 31 and / or the second support positioning block 32, thereby playing an anti-misoperation role.

[0038] refer to Figure 1 and Figure 2The active drive assembly 4 includes a main drive slide 41, a main drive mounting frame 42, a main drive motor 43, a first top seat 44, a main drive top 45, and an active drive member 46. The main drive slide 41 is slidably matched with the workbench 2. One end of the active drive member 46 is connected to the workbench 2 and the other end is connected to the main drive slide 41, so as to control the position of the main drive slide 41. The main drive mounting frame 42 is bolted to the main drive slide 41. The main drive motor 43 and the first top seat 44 are both arranged on the main drive slide 41. The first top seat 44 is mounted on the main drive slide 41 and rotates with the main drive slide 41. The main drive top 45 is mounted on the first top seat 44. The main drive motor 43 drives the first top seat 44 to rotate through the synchronous belt, thereby driving the main drive top 45 to rotate, and then driving the differential housing 7 to rotate. The active drive member 46 can be a cylinder;

[0039] The auxiliary support assembly 5 includes an auxiliary support frame 51, a second top seat 52, and an auxiliary top seat 53. The auxiliary support frame 51 is bolted to the workbench 2, the second top seat 52 is installed on the auxiliary support frame 51, and the auxiliary top seat 53 is installed on the second top seat 52;

[0040] Therefore, when the differential housing 7 is placed on the supporting and positioning assembly 3, the active driving member 46 controls the main driving slide 41, so that the main driving top 45 is pressed against the diameter of one end of the differential housing 7, and pushes the differential housing 7 so that the diameter of the other end of the differential housing 7 is against the secondary top 53, and then the main driving motor 43 drives the first top seat 44 to rotate when it is running, thereby driving the main driving top 45 to rotate, and then driving the differential housing 7 to rotate under the support and cooperation of the secondary top 53 on the diameter of the other end of the differential housing 7.

[0041] refer to Figure 1 and Figure 2 In order to achieve the effect that the differential housing 7 no longer slides on the support and positioning assembly 3 for position adjustment after being placed on the support and positioning assembly 3, a mounting seat 54 is bolted to the second top seat 52 or the auxiliary support frame 51, and an auxiliary driving member 55 is bolted to the mounting seat 54. The auxiliary driving member 55 is connected to the auxiliary top seat 53. The auxiliary driving member 55 is used to adjust the position between the auxiliary top seat 53 and the main driving top seat 45. The auxiliary driving member 55 can be a cylinder, so that under the joint action of the active driving member 46 and the auxiliary driving member 55, when the differential housing 7 is in a fixed position, the main driving top seat 45 and the auxiliary top seat 53 press against the two ends of the differential housing 7.

[0042] refer to Figure 1-Figure 3The measuring assembly 6 includes a measuring base 61, a measuring bracket 62, a displacement sensor 63, a follower slider 64, and a probe 65. The measuring bracket 62 is bolted to the measuring base 61. The displacement sensor 63 is mounted on the measuring bracket 62. The follower slider 64 is slidably matched with the measuring bracket 62 and abuts against the measuring end of the displacement sensor 63. The probe 65 is connected to the follower slider 64. When the differential case 7 needs to be measured, the probe 65 abuts against the outer wall of the differential case 7. A guide rod 66 is provided on the measuring bracket 62. The guide rod 66 passes through the follower slider 64, so that the follower slider 64 and the guide rod 66 are slidably matched. A buffer 67 is also provided on the measuring bracket 62, and the other end of the buffer 67 contacts the follower slider 64. The lower side of the workbench 2 is bolted with a measuring drive member, which may be a hydraulic cylinder, and the piston rod of the measuring drive member is connected to the measuring base 61 through a connecting member, thereby controlling the position of the measuring base 61, and then making the probe 65 contact the differential case 7 or stay away from the differential case 7. The follow-up slider 64 is connected to the measuring bracket 62 through an elastic steel sheet 68, so that the probe 65 can move slightly with the differential case 7 when measuring the shape of the differential case 7.

[0043] refer to Figure 1-Figure 3 When the differential housing 7 needs to be measured, the measuring drive member drives the measuring assembly 6 to move toward the differential housing 7 as a whole. After it is in place, the probe 65 contacts the outer wall of the differential housing 7. At this time, the differential housing 7 is rotating, and the position of the probe 65 changes slightly with the size of the differential housing 7, so that the follower slider 64 moves on the measuring bracket 62 under the action of the elastic steel sheet 68, and then the measuring head of the displacement sensor 63 that is against the measuring bracket 62 also changes accordingly, thereby obtaining the size value of the differential housing 7.

[0044] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A differential case external dimension automatic measuring device, characterized in that: include: A workbench (2), wherein a support and positioning assembly (3) for supporting a differential housing (7) is arranged on the workbench (2), an active drive assembly (4) is arranged at one end of the support and positioning assembly (3), and an auxiliary support assembly (5) is arranged at the other end of the support and positioning assembly (3), the active drive assembly (4) and the auxiliary support assembly (5) respectively cooperate with the two ends of the differential housing (7) to drive the differential housing (7) to rotate, and a measuring assembly (6) is arranged on the side of the support and positioning assembly (3), and the measuring assembly (6) is used to measure the differential housing (7).

2. The automatic measuring device for the external dimensions of a differential case according to claim 1, characterized in that: The support and positioning assembly (3) comprises a first support and positioning block (31) and a second support and positioning block (32), and the first support and positioning block (31) and the second support and positioning block (32) respectively support the diameter openings at both ends of the differential housing (7).

3. The automatic measuring device for the external dimensions of a differential case according to claim 2, characterized in that: An on-position sensor (33) is provided at the first supporting positioning block (31) and / or the second supporting positioning block (32), and the on-position sensor (33) is used to detect whether there is a differential housing (7) on the first supporting positioning block (31) and / or the second supporting positioning block (32).

4. The automatic measuring device for the external dimensions of a differential case according to claim 1, characterized in that: The active drive assembly (4) comprises a main drive slide (41), a main drive mounting frame (42), a main drive motor (43), a first centering seat (44), a main drive centering seat (45), and an active drive member (46). The main drive slide (41) is slidably matched with the workbench (2). One end of the active drive member (46) is connected to the workbench (2) and the other end is connected to the main drive slide (41). The main drive mounting frame (42) is arranged on the main drive slide (41). The main drive motor (43) and the first centering seat (44) are both arranged on the main drive slide (41). The first centering seat (44) is arranged on the main drive slide (41) and is rotationally matched with the main drive slide (41). The main drive centering seat (45) is arranged on the first centering seat (44). The main drive motor (43) drives the first centering seat (44) to rotate.

5. The automatic measuring device for the external dimensions of a differential case according to claim 1, characterized in that: The auxiliary support assembly (5) comprises an auxiliary support frame (51), a second top seat (52), and an auxiliary top seat (53); the auxiliary support frame (51) is arranged on the workbench (2); the second top seat (52) is arranged on the auxiliary support frame (51); and the auxiliary top seat (53) is arranged on the second top seat (52).

6. The automatic measuring device for the external dimensions of a differential case according to claim 5, characterized in that: The second center seat (52) or the secondary support frame (51) is provided with a mounting seat (54), and the mounting seat (54) is provided with a secondary driving member (55). The secondary driving member (55) is connected to the secondary center seat (53), and the secondary driving member (55) is used to adjust the position between the secondary center seat (53) and the main driving center seat (45).

7. The automatic measuring device for the external dimensions of a differential case according to claim 1, characterized in that: The measuring assembly (6) comprises a measuring base (61), a measuring bracket (62), a displacement sensor (63), a follower slider (64), and a probe (65); the measuring bracket (62) is arranged on the measuring base (61); the displacement sensor (63) is arranged on the measuring bracket (62); the follower slider (64) is slidably matched with the measuring bracket (62) and abuts against a measuring end of the displacement sensor (63); the follower slider (64) is connected to the measuring bracket (62) via an elastic steel sheet (68); the probe (65) is connected to the follower slider (64); and when it is necessary to measure the differential case (7), the probe (65) abuts against an outer wall of the differential case (7).

8. The automatic measuring device for the external dimensions of a differential case according to claim 7, characterized in that: The measuring bracket (62) is provided with a guide rod (66), the guide rod (66) passes through the follower slider (64), and the follower slider (64) is slidably matched with the guide rod (66).

9. The automatic measuring device for the external dimensions of a differential case according to claim 8, characterized in that: A buffer (67) is also provided on the measuring bracket (62), and the other end of the buffer (67) is in contact with the follow-up slider (64).

10. The automatic measuring device for the external dimensions of a differential case according to claim 9, characterized in that: A measuring drive component is provided on the lower side of the workbench (2), and the measuring drive component is connected to a measuring base (61).

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